| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * This is the new netlink-based wireless configuration interface. |
| * |
| * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| * Copyright 2013-2014 Intel Mobile Communications GmbH |
| * Copyright 2015-2017 Intel Deutschland GmbH |
| * Copyright (C) 2018-2022 Intel Corporation |
| */ |
| |
| #include <linux/if.h> |
| #include <linux/module.h> |
| #include <linux/err.h> |
| #include <linux/slab.h> |
| #include <linux/list.h> |
| #include <linux/if_ether.h> |
| #include <linux/ieee80211.h> |
| #include <linux/nl80211.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/netlink.h> |
| #include <linux/nospec.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_vlan.h> |
| #include <net/net_namespace.h> |
| #include <net/genetlink.h> |
| #include <net/cfg80211.h> |
| #include <net/sock.h> |
| #include <net/inet_connection_sock.h> |
| #include "core.h" |
| #include "nl80211.h" |
| #include "reg.h" |
| #include "rdev-ops.h" |
| |
| static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
| struct genl_info *info, |
| struct cfg80211_crypto_settings *settings, |
| int cipher_limit); |
| |
| /* the netlink family */ |
| static struct genl_family nl80211_fam; |
| |
| /* multicast groups */ |
| enum nl80211_multicast_groups { |
| NL80211_MCGRP_CONFIG, |
| NL80211_MCGRP_SCAN, |
| NL80211_MCGRP_REGULATORY, |
| NL80211_MCGRP_MLME, |
| NL80211_MCGRP_VENDOR, |
| NL80211_MCGRP_NAN, |
| NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ |
| }; |
| |
| static const struct genl_multicast_group nl80211_mcgrps[] = { |
| [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG }, |
| [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN }, |
| [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG }, |
| [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME }, |
| [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR }, |
| [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN }, |
| #ifdef CONFIG_NL80211_TESTMODE |
| [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE } |
| #endif |
| }; |
| |
| /* returns ERR_PTR values */ |
| static struct wireless_dev * |
| __cfg80211_wdev_from_attrs(struct cfg80211_registered_device *rdev, |
| struct net *netns, struct nlattr **attrs) |
| { |
| struct wireless_dev *result = NULL; |
| bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; |
| bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; |
| u64 wdev_id = 0; |
| int wiphy_idx = -1; |
| int ifidx = -1; |
| |
| if (!have_ifidx && !have_wdev_id) |
| return ERR_PTR(-EINVAL); |
| |
| if (have_ifidx) |
| ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
| if (have_wdev_id) { |
| wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); |
| wiphy_idx = wdev_id >> 32; |
| } |
| |
| if (rdev) { |
| struct wireless_dev *wdev; |
| |
| lockdep_assert_held(&rdev->wiphy.mtx); |
| |
| list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
| if (have_ifidx && wdev->netdev && |
| wdev->netdev->ifindex == ifidx) { |
| result = wdev; |
| break; |
| } |
| if (have_wdev_id && wdev->identifier == (u32)wdev_id) { |
| result = wdev; |
| break; |
| } |
| } |
| |
| return result ?: ERR_PTR(-ENODEV); |
| } |
| |
| ASSERT_RTNL(); |
| |
| list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
| struct wireless_dev *wdev; |
| |
| if (wiphy_net(&rdev->wiphy) != netns) |
| continue; |
| |
| if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) |
| continue; |
| |
| list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
| if (have_ifidx && wdev->netdev && |
| wdev->netdev->ifindex == ifidx) { |
| result = wdev; |
| break; |
| } |
| if (have_wdev_id && wdev->identifier == (u32)wdev_id) { |
| result = wdev; |
| break; |
| } |
| } |
| |
| if (result) |
| break; |
| } |
| |
| if (result) |
| return result; |
| return ERR_PTR(-ENODEV); |
| } |
| |
| static struct cfg80211_registered_device * |
| __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
| { |
| struct cfg80211_registered_device *rdev = NULL, *tmp; |
| struct net_device *netdev; |
| |
| ASSERT_RTNL(); |
| |
| if (!attrs[NL80211_ATTR_WIPHY] && |
| !attrs[NL80211_ATTR_IFINDEX] && |
| !attrs[NL80211_ATTR_WDEV]) |
| return ERR_PTR(-EINVAL); |
| |
| if (attrs[NL80211_ATTR_WIPHY]) |
| rdev = cfg80211_rdev_by_wiphy_idx( |
| nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
| |
| if (attrs[NL80211_ATTR_WDEV]) { |
| u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); |
| struct wireless_dev *wdev; |
| bool found = false; |
| |
| tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); |
| if (tmp) { |
| /* make sure wdev exists */ |
| list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) { |
| if (wdev->identifier != (u32)wdev_id) |
| continue; |
| found = true; |
| break; |
| } |
| |
| if (!found) |
| tmp = NULL; |
| |
| if (rdev && tmp != rdev) |
| return ERR_PTR(-EINVAL); |
| rdev = tmp; |
| } |
| } |
| |
| if (attrs[NL80211_ATTR_IFINDEX]) { |
| int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
| |
| netdev = __dev_get_by_index(netns, ifindex); |
| if (netdev) { |
| if (netdev->ieee80211_ptr) |
| tmp = wiphy_to_rdev( |
| netdev->ieee80211_ptr->wiphy); |
| else |
| tmp = NULL; |
| |
| /* not wireless device -- return error */ |
| if (!tmp) |
| return ERR_PTR(-EINVAL); |
| |
| /* mismatch -- return error */ |
| if (rdev && tmp != rdev) |
| return ERR_PTR(-EINVAL); |
| |
| rdev = tmp; |
| } |
| } |
| |
| if (!rdev) |
| return ERR_PTR(-ENODEV); |
| |
| if (netns != wiphy_net(&rdev->wiphy)) |
| return ERR_PTR(-ENODEV); |
| |
| return rdev; |
| } |
| |
| /* |
| * This function returns a pointer to the driver |
| * that the genl_info item that is passed refers to. |
| * |
| * The result of this can be a PTR_ERR and hence must |
| * be checked with IS_ERR() for errors. |
| */ |
| static struct cfg80211_registered_device * |
| cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
| { |
| return __cfg80211_rdev_from_attrs(netns, info->attrs); |
| } |
| |
| static int validate_beacon_head(const struct nlattr *attr, |
| struct netlink_ext_ack *extack) |
| { |
| const u8 *data = nla_data(attr); |
| unsigned int len = nla_len(attr); |
| const struct element *elem; |
| const struct ieee80211_mgmt *mgmt = (void *)data; |
| unsigned int fixedlen, hdrlen; |
| bool s1g_bcn; |
| |
| if (len < offsetofend(typeof(*mgmt), frame_control)) |
| goto err; |
| |
| s1g_bcn = ieee80211_is_s1g_beacon(mgmt->frame_control); |
| if (s1g_bcn) { |
| fixedlen = offsetof(struct ieee80211_ext, |
| u.s1g_beacon.variable); |
| hdrlen = offsetof(struct ieee80211_ext, u.s1g_beacon); |
| } else { |
| fixedlen = offsetof(struct ieee80211_mgmt, |
| u.beacon.variable); |
| hdrlen = offsetof(struct ieee80211_mgmt, u.beacon); |
| } |
| |
| if (len < fixedlen) |
| goto err; |
| |
| if (ieee80211_hdrlen(mgmt->frame_control) != hdrlen) |
| goto err; |
| |
| data += fixedlen; |
| len -= fixedlen; |
| |
| for_each_element(elem, data, len) { |
| /* nothing */ |
| } |
| |
| if (for_each_element_completed(elem, data, len)) |
| return 0; |
| |
| err: |
| NL_SET_ERR_MSG_ATTR(extack, attr, "malformed beacon head"); |
| return -EINVAL; |
| } |
| |
| static int validate_ie_attr(const struct nlattr *attr, |
| struct netlink_ext_ack *extack) |
| { |
| const u8 *data = nla_data(attr); |
| unsigned int len = nla_len(attr); |
| const struct element *elem; |
| |
| for_each_element(elem, data, len) { |
| /* nothing */ |
| } |
| |
| if (for_each_element_completed(elem, data, len)) |
| return 0; |
| |
| NL_SET_ERR_MSG_ATTR(extack, attr, "malformed information elements"); |
| return -EINVAL; |
| } |
| |
| static int validate_he_capa(const struct nlattr *attr, |
| struct netlink_ext_ack *extack) |
| { |
| if (!ieee80211_he_capa_size_ok(nla_data(attr), nla_len(attr))) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /* policy for the attributes */ |
| static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR]; |
| |
| static const struct nla_policy |
| nl80211_ftm_responder_policy[NL80211_FTM_RESP_ATTR_MAX + 1] = { |
| [NL80211_FTM_RESP_ATTR_ENABLED] = { .type = NLA_FLAG, }, |
| [NL80211_FTM_RESP_ATTR_LCI] = { .type = NLA_BINARY, |
| .len = U8_MAX }, |
| [NL80211_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_BINARY, |
| .len = U8_MAX }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = { |
| [NL80211_PMSR_FTM_REQ_ATTR_ASAP] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE] = { .type = NLA_U32 }, |
| [NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP] = |
| NLA_POLICY_MAX(NLA_U8, 15), |
| [NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD] = { .type = NLA_U16 }, |
| [NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION] = |
| NLA_POLICY_MAX(NLA_U8, 15), |
| [NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST] = |
| NLA_POLICY_MAX(NLA_U8, 31), |
| [NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES] = { .type = NLA_U8 }, |
| [NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK] = { .type = NLA_FLAG }, |
| [NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR] = { .type = NLA_U8 }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_pmsr_req_data_policy[NL80211_PMSR_TYPE_MAX + 1] = { |
| [NL80211_PMSR_TYPE_FTM] = |
| NLA_POLICY_NESTED(nl80211_pmsr_ftm_req_attr_policy), |
| }; |
| |
| static const struct nla_policy |
| nl80211_pmsr_req_attr_policy[NL80211_PMSR_REQ_ATTR_MAX + 1] = { |
| [NL80211_PMSR_REQ_ATTR_DATA] = |
| NLA_POLICY_NESTED(nl80211_pmsr_req_data_policy), |
| [NL80211_PMSR_REQ_ATTR_GET_AP_TSF] = { .type = NLA_FLAG }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_pmsr_peer_attr_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = { |
| [NL80211_PMSR_PEER_ATTR_ADDR] = NLA_POLICY_ETH_ADDR, |
| [NL80211_PMSR_PEER_ATTR_CHAN] = NLA_POLICY_NESTED(nl80211_policy), |
| [NL80211_PMSR_PEER_ATTR_REQ] = |
| NLA_POLICY_NESTED(nl80211_pmsr_req_attr_policy), |
| [NL80211_PMSR_PEER_ATTR_RESP] = { .type = NLA_REJECT }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = { |
| [NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_REJECT }, |
| [NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_REJECT }, |
| [NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_REJECT }, |
| [NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT }, |
| [NL80211_PMSR_ATTR_PEERS] = |
| NLA_POLICY_NESTED_ARRAY(nl80211_pmsr_peer_attr_policy), |
| }; |
| |
| static const struct nla_policy |
| he_obss_pd_policy[NL80211_HE_OBSS_PD_ATTR_MAX + 1] = { |
| [NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET] = |
| NLA_POLICY_RANGE(NLA_U8, 1, 20), |
| [NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET] = |
| NLA_POLICY_RANGE(NLA_U8, 1, 20), |
| [NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET] = |
| NLA_POLICY_RANGE(NLA_U8, 1, 20), |
| [NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP] = |
| NLA_POLICY_EXACT_LEN(8), |
| [NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP] = |
| NLA_POLICY_EXACT_LEN(8), |
| [NL80211_HE_OBSS_PD_ATTR_SR_CTRL] = { .type = NLA_U8 }, |
| }; |
| |
| static const struct nla_policy |
| he_bss_color_policy[NL80211_HE_BSS_COLOR_ATTR_MAX + 1] = { |
| [NL80211_HE_BSS_COLOR_ATTR_COLOR] = NLA_POLICY_RANGE(NLA_U8, 1, 63), |
| [NL80211_HE_BSS_COLOR_ATTR_DISABLED] = { .type = NLA_FLAG }, |
| [NL80211_HE_BSS_COLOR_ATTR_PARTIAL] = { .type = NLA_FLAG }, |
| }; |
| |
| static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
| [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
| .len = NL80211_MAX_SUPP_RATES }, |
| [NL80211_TXRATE_HT] = { .type = NLA_BINARY, |
| .len = NL80211_MAX_SUPP_HT_RATES }, |
| [NL80211_TXRATE_VHT] = NLA_POLICY_EXACT_LEN_WARN(sizeof(struct nl80211_txrate_vht)), |
| [NL80211_TXRATE_GI] = { .type = NLA_U8 }, |
| [NL80211_TXRATE_HE] = NLA_POLICY_EXACT_LEN(sizeof(struct nl80211_txrate_he)), |
| [NL80211_TXRATE_HE_GI] = NLA_POLICY_RANGE(NLA_U8, |
| NL80211_RATE_INFO_HE_GI_0_8, |
| NL80211_RATE_INFO_HE_GI_3_2), |
| [NL80211_TXRATE_HE_LTF] = NLA_POLICY_RANGE(NLA_U8, |
| NL80211_RATE_INFO_HE_1XLTF, |
| NL80211_RATE_INFO_HE_4XLTF), |
| }; |
| |
| static const struct nla_policy |
| nl80211_tid_config_attr_policy[NL80211_TID_CONFIG_ATTR_MAX + 1] = { |
| [NL80211_TID_CONFIG_ATTR_VIF_SUPP] = { .type = NLA_U64 }, |
| [NL80211_TID_CONFIG_ATTR_PEER_SUPP] = { .type = NLA_U64 }, |
| [NL80211_TID_CONFIG_ATTR_OVERRIDE] = { .type = NLA_FLAG }, |
| [NL80211_TID_CONFIG_ATTR_TIDS] = NLA_POLICY_RANGE(NLA_U16, 1, 0xff), |
| [NL80211_TID_CONFIG_ATTR_NOACK] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), |
| [NL80211_TID_CONFIG_ATTR_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_TID_CONFIG_ATTR_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_TID_CONFIG_ATTR_AMPDU_CTRL] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), |
| [NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), |
| [NL80211_TID_CONFIG_ATTR_AMSDU_CTRL] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), |
| [NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_TX_RATE_FIXED), |
| [NL80211_TID_CONFIG_ATTR_TX_RATE] = |
| NLA_POLICY_NESTED(nl80211_txattr_policy), |
| }; |
| |
| static const struct nla_policy |
| nl80211_fils_discovery_policy[NL80211_FILS_DISCOVERY_ATTR_MAX + 1] = { |
| [NL80211_FILS_DISCOVERY_ATTR_INT_MIN] = NLA_POLICY_MAX(NLA_U32, 10000), |
| [NL80211_FILS_DISCOVERY_ATTR_INT_MAX] = NLA_POLICY_MAX(NLA_U32, 10000), |
| [NL80211_FILS_DISCOVERY_ATTR_TMPL] = |
| NLA_POLICY_RANGE(NLA_BINARY, |
| NL80211_FILS_DISCOVERY_TMPL_MIN_LEN, |
| IEEE80211_MAX_DATA_LEN), |
| }; |
| |
| static const struct nla_policy |
| nl80211_unsol_bcast_probe_resp_policy[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX + 1] = { |
| [NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT] = NLA_POLICY_MAX(NLA_U32, 20), |
| [NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_DATA_LEN } |
| }; |
| |
| static const struct nla_policy |
| sar_specs_policy[NL80211_SAR_ATTR_SPECS_MAX + 1] = { |
| [NL80211_SAR_ATTR_SPECS_POWER] = { .type = NLA_S32 }, |
| [NL80211_SAR_ATTR_SPECS_RANGE_INDEX] = {.type = NLA_U32 }, |
| }; |
| |
| static const struct nla_policy |
| sar_policy[NL80211_SAR_ATTR_MAX + 1] = { |
| [NL80211_SAR_ATTR_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_SAR_TYPE), |
| [NL80211_SAR_ATTR_SPECS] = NLA_POLICY_NESTED_ARRAY(sar_specs_policy), |
| }; |
| |
| static const struct nla_policy |
| nl80211_mbssid_config_policy[NL80211_MBSSID_CONFIG_ATTR_MAX + 1] = { |
| [NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES] = NLA_POLICY_MIN(NLA_U8, 2), |
| [NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY] = |
| NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_MBSSID_CONFIG_ATTR_INDEX] = { .type = NLA_U8 }, |
| [NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX] = { .type = NLA_U32 }, |
| [NL80211_MBSSID_CONFIG_ATTR_EMA] = { .type = NLA_FLAG }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { |
| [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, |
| [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, |
| }; |
| |
| static struct netlink_range_validation nl80211_punct_bitmap_range = { |
| .min = 0, |
| .max = 0xffff, |
| }; |
| |
| static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { |
| [0] = { .strict_start_type = NL80211_ATTR_HE_OBSS_PD }, |
| [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, |
| .len = 20-1 }, |
| [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
| |
| [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_EDMG_CHANNELS] = NLA_POLICY_RANGE(NLA_U8, |
| NL80211_EDMG_CHANNELS_MIN, |
| NL80211_EDMG_CHANNELS_MAX), |
| [NL80211_ATTR_WIPHY_EDMG_BW_CONFIG] = NLA_POLICY_RANGE(NLA_U8, |
| NL80211_EDMG_BW_CONFIG_MIN, |
| NL80211_EDMG_BW_CONFIG_MAX), |
| |
| [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CENTER_FREQ1_OFFSET] = NLA_POLICY_RANGE(NLA_U32, 0, 999), |
| [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, |
| |
| [NL80211_ATTR_WIPHY_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_ATTR_WIPHY_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
| [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG }, |
| |
| [NL80211_ATTR_IFTYPE] = NLA_POLICY_MAX(NLA_U32, NL80211_IFTYPE_MAX), |
| [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, |
| [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, |
| |
| [NL80211_ATTR_MAC] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_ATTR_PREV_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| |
| [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
| [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
| .len = WLAN_MAX_KEY_LEN }, |
| [NL80211_ATTR_KEY_IDX] = NLA_POLICY_MAX(NLA_U8, 7), |
| [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, |
| [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
| [NL80211_ATTR_KEY_TYPE] = |
| NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES), |
| |
| [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, |
| [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_BEACON_HEAD] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_beacon_head, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_ATTR_BEACON_TAIL] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_ATTR_STA_AID] = |
| NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID), |
| [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, |
| [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, |
| .len = NL80211_MAX_SUPP_RATES }, |
| [NL80211_ATTR_STA_PLINK_ACTION] = |
| NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_ACTIONS - 1), |
| [NL80211_ATTR_STA_TX_POWER_SETTING] = |
| NLA_POLICY_RANGE(NLA_U8, |
| NL80211_TX_POWER_AUTOMATIC, |
| NL80211_TX_POWER_FIXED), |
| [NL80211_ATTR_STA_TX_POWER] = { .type = NLA_S16 }, |
| [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
| [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
| [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_MESH_ID_LEN }, |
| [NL80211_ATTR_MPATH_NEXT_HOP] = NLA_POLICY_ETH_ADDR_COMPAT, |
| |
| /* allow 3 for NUL-termination, we used to declare this NLA_STRING */ |
| [NL80211_ATTR_REG_ALPHA2] = NLA_POLICY_RANGE(NLA_BINARY, 2, 3), |
| [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, |
| |
| [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
| [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, |
| [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, |
| [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
| .len = NL80211_MAX_SUPP_RATES }, |
| [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
| |
| [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
| |
| [NL80211_ATTR_HT_CAPABILITY] = NLA_POLICY_EXACT_LEN_WARN(NL80211_HT_CAPABILITY_LEN), |
| |
| [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, |
| [NL80211_ATTR_IE] = NLA_POLICY_VALIDATE_FN(NLA_BINARY, |
| validate_ie_attr, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, |
| |
| [NL80211_ATTR_SSID] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_SSID_LEN }, |
| [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, |
| [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, |
| [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_USE_MFP] = NLA_POLICY_RANGE(NLA_U32, |
| NL80211_MFP_NO, |
| NL80211_MFP_OPTIONAL), |
| [NL80211_ATTR_STA_FLAGS2] = |
| NLA_POLICY_EXACT_LEN_WARN(sizeof(struct nl80211_sta_flag_update)), |
| [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
| [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_CONTROL_PORT_OVER_NL80211] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 }, |
| [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
| [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
| [NL80211_ATTR_PMKID] = NLA_POLICY_EXACT_LEN_WARN(WLAN_PMKID_LEN), |
| [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
| [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, |
| [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_DATA_LEN }, |
| [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, |
| [NL80211_ATTR_PS_STATE] = NLA_POLICY_RANGE(NLA_U32, |
| NL80211_PS_DISABLED, |
| NL80211_PS_ENABLED), |
| [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
| [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
| [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
| [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
| [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, |
| [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
| [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_STA_PLINK_STATE] = |
| NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_STATES - 1), |
| [NL80211_ATTR_MEASUREMENT_DURATION] = { .type = NLA_U16 }, |
| [NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_MESH_PEER_AID] = |
| NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID), |
| [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
| [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_HIDDEN_SSID] = |
| NLA_POLICY_RANGE(NLA_U32, |
| NL80211_HIDDEN_SSID_NOT_IN_USE, |
| NL80211_HIDDEN_SSID_ZERO_CONTENTS), |
| [NL80211_ATTR_IE_PROBE_RESP] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_ATTR_IE_ASSOC_RESP] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_STA_WME] = NLA_POLICY_NESTED(nl80211_sta_wme_policy), |
| [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
| [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, |
| [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, |
| [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_DATA_LEN }, |
| [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
| [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_HT_CAPABILITY_MASK] = { |
| .len = NL80211_HT_CAPABILITY_LEN |
| }, |
| [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
| [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
| [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
| [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
| [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
| |
| /* need to include at least Auth Transaction and Status Code */ |
| [NL80211_ATTR_AUTH_DATA] = NLA_POLICY_MIN_LEN(4), |
| |
| [NL80211_ATTR_VHT_CAPABILITY] = NLA_POLICY_EXACT_LEN_WARN(NL80211_VHT_CAPABILITY_LEN), |
| [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_P2P_CTWINDOW] = NLA_POLICY_MAX(NLA_U8, 127), |
| [NL80211_ATTR_P2P_OPPPS] = NLA_POLICY_MAX(NLA_U8, 1), |
| [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = |
| NLA_POLICY_RANGE(NLA_U32, |
| NL80211_MESH_POWER_UNKNOWN + 1, |
| NL80211_MESH_POWER_MAX), |
| [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
| [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |
| [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, |
| [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, |
| [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_VHT_CAPABILITY_MASK] = { |
| .len = NL80211_VHT_CAPABILITY_LEN, |
| }, |
| [NL80211_ATTR_MDID] = { .type = NLA_U16 }, |
| [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_DATA_LEN }, |
| [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 }, |
| [NL80211_ATTR_MAX_CRIT_PROT_DURATION] = |
| NLA_POLICY_MAX(NLA_U16, NL80211_CRIT_PROTO_MAX_DURATION), |
| [NL80211_ATTR_PEER_AID] = |
| NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID), |
| [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_CNTDWN_OFFS_BEACON] = { .type = NLA_BINARY }, |
| [NL80211_ATTR_CNTDWN_OFFS_PRESP] = { .type = NLA_BINARY }, |
| [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = NLA_POLICY_MIN_LEN(2), |
| /* |
| * The value of the Length field of the Supported Operating |
| * Classes element is between 2 and 253. |
| */ |
| [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = |
| NLA_POLICY_RANGE(NLA_BINARY, 2, 253), |
| [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 }, |
| [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 }, |
| [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, |
| [NL80211_ATTR_QOS_MAP] = NLA_POLICY_RANGE(NLA_BINARY, |
| IEEE80211_QOS_MAP_LEN_MIN, |
| IEEE80211_QOS_MAP_LEN_MAX), |
| [NL80211_ATTR_MAC_HINT] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, |
| [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, |
| [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_TSID] = NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_TIDS - 1), |
| [NL80211_ATTR_USER_PRIO] = |
| NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_UPS - 1), |
| [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, |
| [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, |
| [NL80211_ATTR_OPER_CLASS] = { .type = NLA_U8 }, |
| [NL80211_ATTR_MAC_MASK] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 }, |
| [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_PBSS] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_STA_SUPPORT_P2P_PS] = |
| NLA_POLICY_MAX(NLA_U8, NUM_NL80211_P2P_PS_STATUS - 1), |
| [NL80211_ATTR_MU_MIMO_GROUP_DATA] = { |
| .len = VHT_MUMIMO_GROUPS_DATA_LEN |
| }, |
| [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_ATTR_NAN_MASTER_PREF] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_ATTR_BANDS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY, |
| .len = FILS_MAX_KEK_LEN }, |
| [NL80211_ATTR_FILS_NONCES] = NLA_POLICY_EXACT_LEN_WARN(2 * FILS_NONCE_LEN), |
| [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, }, |
| [NL80211_ATTR_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 }, |
| [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = { |
| .len = sizeof(struct nl80211_bss_select_rssi_adjust) |
| }, |
| [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY, |
| .len = FILS_ERP_MAX_USERNAME_LEN }, |
| [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY, |
| .len = FILS_ERP_MAX_REALM_LEN }, |
| [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 }, |
| [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY, |
| .len = FILS_ERP_MAX_RRK_LEN }, |
| [NL80211_ATTR_FILS_CACHE_ID] = NLA_POLICY_EXACT_LEN_WARN(2), |
| [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN }, |
| [NL80211_ATTR_PMKR0_NAME] = NLA_POLICY_EXACT_LEN(WLAN_PMK_NAME_LEN), |
| [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG }, |
| |
| [NL80211_ATTR_TXQ_LIMIT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_TXQ_MEMORY_LIMIT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 }, |
| [NL80211_ATTR_HE_CAPABILITY] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_he_capa, |
| NL80211_HE_MAX_CAPABILITY_LEN), |
| [NL80211_ATTR_FTM_RESPONDER] = |
| NLA_POLICY_NESTED(nl80211_ftm_responder_policy), |
| [NL80211_ATTR_TIMEOUT] = NLA_POLICY_MIN(NLA_U32, 1), |
| [NL80211_ATTR_PEER_MEASUREMENTS] = |
| NLA_POLICY_NESTED(nl80211_pmsr_attr_policy), |
| [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY, |
| .len = SAE_PASSWORD_MAX_LEN }, |
| [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_HE_OBSS_PD] = NLA_POLICY_NESTED(he_obss_pd_policy), |
| [NL80211_ATTR_VLAN_ID] = NLA_POLICY_RANGE(NLA_U16, 1, VLAN_N_VID - 2), |
| [NL80211_ATTR_HE_BSS_COLOR] = NLA_POLICY_NESTED(he_bss_color_policy), |
| [NL80211_ATTR_TID_CONFIG] = |
| NLA_POLICY_NESTED_ARRAY(nl80211_tid_config_attr_policy), |
| [NL80211_ATTR_CONTROL_PORT_NO_PREAUTH] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_PMK_LIFETIME] = NLA_POLICY_MIN(NLA_U32, 1), |
| [NL80211_ATTR_PMK_REAUTH_THRESHOLD] = NLA_POLICY_RANGE(NLA_U8, 1, 100), |
| [NL80211_ATTR_RECEIVE_MULTICAST] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_WIPHY_FREQ_OFFSET] = NLA_POLICY_RANGE(NLA_U32, 0, 999), |
| [NL80211_ATTR_SCAN_FREQ_KHZ] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_HE_6GHZ_CAPABILITY] = |
| NLA_POLICY_EXACT_LEN(sizeof(struct ieee80211_he_6ghz_capa)), |
| [NL80211_ATTR_FILS_DISCOVERY] = |
| NLA_POLICY_NESTED(nl80211_fils_discovery_policy), |
| [NL80211_ATTR_UNSOL_BCAST_PROBE_RESP] = |
| NLA_POLICY_NESTED(nl80211_unsol_bcast_probe_resp_policy), |
| [NL80211_ATTR_S1G_CAPABILITY] = |
| NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), |
| [NL80211_ATTR_S1G_CAPABILITY_MASK] = |
| NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), |
| [NL80211_ATTR_SAE_PWE] = |
| NLA_POLICY_RANGE(NLA_U8, NL80211_SAE_PWE_HUNT_AND_PECK, |
| NL80211_SAE_PWE_BOTH), |
| [NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT }, |
| [NL80211_ATTR_SAR_SPEC] = NLA_POLICY_NESTED(sar_policy), |
| [NL80211_ATTR_DISABLE_HE] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_OBSS_COLOR_BITMAP] = { .type = NLA_U64 }, |
| [NL80211_ATTR_COLOR_CHANGE_COUNT] = { .type = NLA_U8 }, |
| [NL80211_ATTR_COLOR_CHANGE_COLOR] = { .type = NLA_U8 }, |
| [NL80211_ATTR_COLOR_CHANGE_ELEMS] = NLA_POLICY_NESTED(nl80211_policy), |
| [NL80211_ATTR_MBSSID_CONFIG] = |
| NLA_POLICY_NESTED(nl80211_mbssid_config_policy), |
| [NL80211_ATTR_MBSSID_ELEMS] = { .type = NLA_NESTED }, |
| [NL80211_ATTR_RADAR_BACKGROUND] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_AP_SETTINGS_FLAGS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_EHT_CAPABILITY] = |
| NLA_POLICY_RANGE(NLA_BINARY, |
| NL80211_EHT_MIN_CAPABILITY_LEN, |
| NL80211_EHT_MAX_CAPABILITY_LEN), |
| [NL80211_ATTR_DISABLE_EHT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_MLO_LINKS] = |
| NLA_POLICY_NESTED_ARRAY(nl80211_policy), |
| [NL80211_ATTR_MLO_LINK_ID] = |
| NLA_POLICY_RANGE(NLA_U8, 0, IEEE80211_MLD_MAX_NUM_LINKS), |
| [NL80211_ATTR_MLD_ADDR] = NLA_POLICY_EXACT_LEN(ETH_ALEN), |
| [NL80211_ATTR_MLO_SUPPORT] = { .type = NLA_FLAG }, |
| [NL80211_ATTR_MAX_NUM_AKM_SUITES] = { .type = NLA_REJECT }, |
| [NL80211_ATTR_PUNCT_BITMAP] = |
| NLA_POLICY_FULL_RANGE(NLA_U32, &nl80211_punct_bitmap_range), |
| }; |
| |
| /* policy for the key attributes */ |
| static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
| [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
| [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
| [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, |
| [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
| [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
| [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, |
| [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1), |
| [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
| [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX), |
| }; |
| |
| /* policy for the key default flags */ |
| static const struct nla_policy |
| nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { |
| [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, |
| [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, |
| }; |
| |
| #ifdef CONFIG_PM |
| /* policy for WoWLAN attributes */ |
| static const struct nla_policy |
| nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { |
| [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, |
| [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, |
| [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
| [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { |
| [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, |
| [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, |
| [NL80211_WOWLAN_TCP_DST_MAC] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, |
| [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, |
| [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = NLA_POLICY_MIN_LEN(1), |
| [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { |
| .len = sizeof(struct nl80211_wowlan_tcp_data_seq) |
| }, |
| [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { |
| .len = sizeof(struct nl80211_wowlan_tcp_data_token) |
| }, |
| [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, |
| [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = NLA_POLICY_MIN_LEN(1), |
| [NL80211_WOWLAN_TCP_WAKE_MASK] = NLA_POLICY_MIN_LEN(1), |
| }; |
| #endif /* CONFIG_PM */ |
| |
| /* policy for coalesce rule attributes */ |
| static const struct nla_policy |
| nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { |
| [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, |
| [NL80211_ATTR_COALESCE_RULE_CONDITION] = |
| NLA_POLICY_RANGE(NLA_U32, |
| NL80211_COALESCE_CONDITION_MATCH, |
| NL80211_COALESCE_CONDITION_NO_MATCH), |
| [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, |
| }; |
| |
| /* policy for GTK rekey offload attributes */ |
| static const struct nla_policy |
| nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { |
| [NL80211_REKEY_DATA_KEK] = { |
| .type = NLA_BINARY, |
| .len = NL80211_KEK_EXT_LEN |
| }, |
| [NL80211_REKEY_DATA_KCK] = { |
| .type = NLA_BINARY, |
| .len = NL80211_KCK_EXT_LEN_32 |
| }, |
| [NL80211_REKEY_DATA_REPLAY_CTR] = NLA_POLICY_EXACT_LEN(NL80211_REPLAY_CTR_LEN), |
| [NL80211_REKEY_DATA_AKM] = { .type = NLA_U32 }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_match_band_rssi_policy[NUM_NL80211_BANDS] = { |
| [NL80211_BAND_2GHZ] = { .type = NLA_S32 }, |
| [NL80211_BAND_5GHZ] = { .type = NLA_S32 }, |
| [NL80211_BAND_6GHZ] = { .type = NLA_S32 }, |
| [NL80211_BAND_60GHZ] = { .type = NLA_S32 }, |
| [NL80211_BAND_LC] = { .type = NLA_S32 }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { |
| [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
| .len = IEEE80211_MAX_SSID_LEN }, |
| [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
| [NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI] = |
| NLA_POLICY_NESTED(nl80211_match_band_rssi_policy), |
| }; |
| |
| static const struct nla_policy |
| nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = { |
| [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 }, |
| [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 }, |
| }; |
| |
| static const struct nla_policy |
| nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = { |
| [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG }, |
| [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 }, |
| [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = { |
| .len = sizeof(struct nl80211_bss_select_rssi_adjust) |
| }, |
| }; |
| |
| /* policy for NAN function attributes */ |
| static const struct nla_policy |
| nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = { |
| [NL80211_NAN_FUNC_TYPE] = |
| NLA_POLICY_MAX(NLA_U8, NL80211_NAN_FUNC_MAX_TYPE), |
| [NL80211_NAN_FUNC_SERVICE_ID] = { |
| .len = NL80211_NAN_FUNC_SERVICE_ID_LEN }, |
| [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 }, |
| [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG }, |
| [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG }, |
| [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 }, |
| [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 }, |
| [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN), |
| [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG }, |
| [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 }, |
| [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY, |
| .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN }, |
| [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED }, |
| [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED }, |
| [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED }, |
| [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 }, |
| [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 }, |
| }; |
| |
| /* policy for Service Response Filter attributes */ |
| static const struct nla_policy |
| nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = { |
| [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG }, |
| [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY, |
| .len = NL80211_NAN_FUNC_SRF_MAX_LEN }, |
| [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 }, |
| [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED }, |
| }; |
| |
| /* policy for packet pattern attributes */ |
| static const struct nla_policy |
| nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = { |
| [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, }, |
| [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, }, |
| [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 }, |
| }; |
| |
| static int nl80211_prepare_wdev_dump(struct netlink_callback *cb, |
| struct cfg80211_registered_device **rdev, |
| struct wireless_dev **wdev, |
| struct nlattr **attrbuf) |
| { |
| int err; |
| |
| if (!cb->args[0]) { |
| struct nlattr **attrbuf_free = NULL; |
| |
| if (!attrbuf) { |
| attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), |
| GFP_KERNEL); |
| if (!attrbuf) |
| return -ENOMEM; |
| attrbuf_free = attrbuf; |
| } |
| |
| err = nlmsg_parse_deprecated(cb->nlh, |
| GENL_HDRLEN + nl80211_fam.hdrsize, |
| attrbuf, nl80211_fam.maxattr, |
| nl80211_policy, NULL); |
| if (err) { |
| kfree(attrbuf_free); |
| return err; |
| } |
| |
| rtnl_lock(); |
| *wdev = __cfg80211_wdev_from_attrs(NULL, sock_net(cb->skb->sk), |
| attrbuf); |
| kfree(attrbuf_free); |
| if (IS_ERR(*wdev)) { |
| rtnl_unlock(); |
| return PTR_ERR(*wdev); |
| } |
| *rdev = wiphy_to_rdev((*wdev)->wiphy); |
| mutex_lock(&(*rdev)->wiphy.mtx); |
| rtnl_unlock(); |
| /* 0 is the first index - add 1 to parse only once */ |
| cb->args[0] = (*rdev)->wiphy_idx + 1; |
| cb->args[1] = (*wdev)->identifier; |
| } else { |
| /* subtract the 1 again here */ |
| struct wiphy *wiphy; |
| struct wireless_dev *tmp; |
| |
| rtnl_lock(); |
| wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); |
| if (!wiphy) { |
| rtnl_unlock(); |
| return -ENODEV; |
| } |
| *rdev = wiphy_to_rdev(wiphy); |
| *wdev = NULL; |
| |
| list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) { |
| if (tmp->identifier == cb->args[1]) { |
| *wdev = tmp; |
| break; |
| } |
| } |
| |
| if (!*wdev) { |
| rtnl_unlock(); |
| return -ENODEV; |
| } |
| mutex_lock(&(*rdev)->wiphy.mtx); |
| rtnl_unlock(); |
| } |
| |
| return 0; |
| } |
| |
| /* message building helper */ |
| void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
| int flags, u8 cmd) |
| { |
| /* since there is no private header just add the generic one */ |
| return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
| } |
| |
| static int nl80211_msg_put_wmm_rules(struct sk_buff *msg, |
| const struct ieee80211_reg_rule *rule) |
| { |
| int j; |
| struct nlattr *nl_wmm_rules = |
| nla_nest_start_noflag(msg, NL80211_FREQUENCY_ATTR_WMM); |
| |
| if (!nl_wmm_rules) |
| goto nla_put_failure; |
| |
| for (j = 0; j < IEEE80211_NUM_ACS; j++) { |
| struct nlattr *nl_wmm_rule = nla_nest_start_noflag(msg, j); |
| |
| if (!nl_wmm_rule) |
| goto nla_put_failure; |
| |
| if (nla_put_u16(msg, NL80211_WMMR_CW_MIN, |
| rule->wmm_rule.client[j].cw_min) || |
| nla_put_u16(msg, NL80211_WMMR_CW_MAX, |
| rule->wmm_rule.client[j].cw_max) || |
| nla_put_u8(msg, NL80211_WMMR_AIFSN, |
| rule->wmm_rule.client[j].aifsn) || |
| nla_put_u16(msg, NL80211_WMMR_TXOP, |
| rule->wmm_rule.client[j].cot)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nl_wmm_rule); |
| } |
| nla_nest_end(msg, nl_wmm_rules); |
| |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy, |
| struct ieee80211_channel *chan, |
| bool large) |
| { |
| /* Some channels must be completely excluded from the |
| * list to protect old user-space tools from breaking |
| */ |
| if (!large && chan->flags & |
| (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ)) |
| return 0; |
| if (!large && chan->freq_offset) |
| return 0; |
| |
| if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
| chan->center_freq)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_OFFSET, chan->freq_offset)) |
| goto nla_put_failure; |
| |
| if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) |
| goto nla_put_failure; |
| if (chan->flags & IEEE80211_CHAN_NO_IR) { |
| if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR)) |
| goto nla_put_failure; |
| if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS)) |
| goto nla_put_failure; |
| } |
| if (chan->flags & IEEE80211_CHAN_RADAR) { |
| if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) |
| goto nla_put_failure; |
| if (large) { |
| u32 time; |
| |
| time = elapsed_jiffies_msecs(chan->dfs_state_entered); |
| |
| if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, |
| chan->dfs_state)) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, |
| time)) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, |
| NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, |
| chan->dfs_cac_ms)) |
| goto nla_put_failure; |
| } |
| } |
| |
| if (large) { |
| if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_HE) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HE)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_1MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_1MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_2MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_2MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_4MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_4MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_8MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_8MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_16MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_16MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_320MHZ) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_320MHZ)) |
| goto nla_put_failure; |
| if ((chan->flags & IEEE80211_CHAN_NO_EHT) && |
| nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_EHT)) |
| goto nla_put_failure; |
| } |
| |
| if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
| DBM_TO_MBM(chan->max_power))) |
| goto nla_put_failure; |
| |
| if (large) { |
| const struct ieee80211_reg_rule *rule = |
| freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq)); |
| |
| if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) { |
| if (nl80211_msg_put_wmm_rules(msg, rule)) |
| goto nla_put_failure; |
| } |
| } |
| |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| static bool nl80211_put_txq_stats(struct sk_buff *msg, |
| struct cfg80211_txq_stats *txqstats, |
| int attrtype) |
| { |
| struct nlattr *txqattr; |
| |
| #define PUT_TXQVAL_U32(attr, memb) do { \ |
| if (txqstats->filled & BIT(NL80211_TXQ_STATS_ ## attr) && \ |
| nla_put_u32(msg, NL80211_TXQ_STATS_ ## attr, txqstats->memb)) \ |
| return false; \ |
| } while (0) |
| |
| txqattr = nla_nest_start_noflag(msg, attrtype); |
| if (!txqattr) |
| return false; |
| |
| PUT_TXQVAL_U32(BACKLOG_BYTES, backlog_bytes); |
| PUT_TXQVAL_U32(BACKLOG_PACKETS, backlog_packets); |
| PUT_TXQVAL_U32(FLOWS, flows); |
| PUT_TXQVAL_U32(DROPS, drops); |
| PUT_TXQVAL_U32(ECN_MARKS, ecn_marks); |
| PUT_TXQVAL_U32(OVERLIMIT, overlimit); |
| PUT_TXQVAL_U32(OVERMEMORY, overmemory); |
| PUT_TXQVAL_U32(COLLISIONS, collisions); |
| PUT_TXQVAL_U32(TX_BYTES, tx_bytes); |
| PUT_TXQVAL_U32(TX_PACKETS, tx_packets); |
| PUT_TXQVAL_U32(MAX_FLOWS, max_flows); |
| nla_nest_end(msg, txqattr); |
| |
| #undef PUT_TXQVAL_U32 |
| return true; |
| } |
| |
| /* netlink command implementations */ |
| |
| /** |
| * nl80211_link_id - return link ID |
| * @attrs: attributes to look at |
| * |
| * Returns: the link ID or 0 if not given |
| * |
| * Note this function doesn't do any validation of the link |
| * ID validity wrt. links that were actually added, so it must |
| * be called only from ops with %NL80211_FLAG_MLO_VALID_LINK_ID |
| * or if additional validation is done. |
| */ |
| static unsigned int nl80211_link_id(struct nlattr **attrs) |
| { |
| struct nlattr *linkid = attrs[NL80211_ATTR_MLO_LINK_ID]; |
| |
| if (!linkid) |
| return 0; |
| |
| return nla_get_u8(linkid); |
| } |
| |
| static int nl80211_link_id_or_invalid(struct nlattr **attrs) |
| { |
| struct nlattr *linkid = attrs[NL80211_ATTR_MLO_LINK_ID]; |
| |
| if (!linkid) |
| return -1; |
| |
| return nla_get_u8(linkid); |
| } |
| |
| struct key_parse { |
| struct key_params p; |
| int idx; |
| int type; |
| bool def, defmgmt, defbeacon; |
| bool def_uni, def_multi; |
| }; |
| |
| static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key, |
| struct key_parse *k) |
| { |
| struct nlattr *tb[NL80211_KEY_MAX + 1]; |
| int err = nla_parse_nested_deprecated(tb, NL80211_KEY_MAX, key, |
| nl80211_key_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| k->def = !!tb[NL80211_KEY_DEFAULT]; |
| k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; |
| k->defbeacon = !!tb[NL80211_KEY_DEFAULT_BEACON]; |
| |
| if (k->def) { |
| k->def_uni = true; |
| k->def_multi = true; |
| } |
| if (k->defmgmt || k->defbeacon) |
| k->def_multi = true; |
| |
| if (tb[NL80211_KEY_IDX]) |
| k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); |
| |
| if (tb[NL80211_KEY_DATA]) { |
| k->p.key = nla_data(tb[NL80211_KEY_DATA]); |
| k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); |
| } |
| |
| if (tb[NL80211_KEY_SEQ]) { |
| k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); |
| k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); |
| } |
| |
| if (tb[NL80211_KEY_CIPHER]) |
| k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); |
| |
| if (tb[NL80211_KEY_TYPE]) |
| k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); |
| |
| if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
| struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; |
| |
| err = nla_parse_nested_deprecated(kdt, |
| NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
| tb[NL80211_KEY_DEFAULT_TYPES], |
| nl80211_key_default_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; |
| k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; |
| } |
| |
| if (tb[NL80211_KEY_MODE]) |
| k->p.mode = nla_get_u8(tb[NL80211_KEY_MODE]); |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) |
| { |
| if (info->attrs[NL80211_ATTR_KEY_DATA]) { |
| k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); |
| k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_KEY_SEQ]) { |
| k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); |
| k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_KEY_IDX]) |
| k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| |
| if (info->attrs[NL80211_ATTR_KEY_CIPHER]) |
| k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); |
| |
| k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; |
| k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; |
| |
| if (k->def) { |
| k->def_uni = true; |
| k->def_multi = true; |
| } |
| if (k->defmgmt) |
| k->def_multi = true; |
| |
| if (info->attrs[NL80211_ATTR_KEY_TYPE]) |
| k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); |
| |
| if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
| struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; |
| int err = nla_parse_nested_deprecated(kdt, |
| NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
| info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], |
| nl80211_key_default_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; |
| k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) |
| { |
| int err; |
| |
| memset(k, 0, sizeof(*k)); |
| k->idx = -1; |
| k->type = -1; |
| |
| if (info->attrs[NL80211_ATTR_KEY]) |
| err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k); |
| else |
| err = nl80211_parse_key_old(info, k); |
| |
| if (err) |
| return err; |
| |
| if ((k->def ? 1 : 0) + (k->defmgmt ? 1 : 0) + |
| (k->defbeacon ? 1 : 0) > 1) { |
| GENL_SET_ERR_MSG(info, |
| "key with multiple default flags is invalid"); |
| return -EINVAL; |
| } |
| |
| if (k->defmgmt || k->defbeacon) { |
| if (k->def_uni || !k->def_multi) { |
| GENL_SET_ERR_MSG(info, |
| "defmgmt/defbeacon key must be mcast"); |
| return -EINVAL; |
| } |
| } |
| |
| if (k->idx != -1) { |
| if (k->defmgmt) { |
| if (k->idx < 4 || k->idx > 5) { |
| GENL_SET_ERR_MSG(info, |
| "defmgmt key idx not 4 or 5"); |
| return -EINVAL; |
| } |
| } else if (k->defbeacon) { |
| if (k->idx < 6 || k->idx > 7) { |
| GENL_SET_ERR_MSG(info, |
| "defbeacon key idx not 6 or 7"); |
| return -EINVAL; |
| } |
| } else if (k->def) { |
| if (k->idx < 0 || k->idx > 3) { |
| GENL_SET_ERR_MSG(info, "def key idx not 0-3"); |
| return -EINVAL; |
| } |
| } else { |
| if (k->idx < 0 || k->idx > 7) { |
| GENL_SET_ERR_MSG(info, "key idx not 0-7"); |
| return -EINVAL; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static struct cfg80211_cached_keys * |
| nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, |
| struct genl_info *info, bool *no_ht) |
| { |
| struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS]; |
| struct key_parse parse; |
| struct nlattr *key; |
| struct cfg80211_cached_keys *result; |
| int rem, err, def = 0; |
| bool have_key = false; |
| |
| nla_for_each_nested(key, keys, rem) { |
| have_key = true; |
| break; |
| } |
| |
| if (!have_key) |
| return NULL; |
| |
| result = kzalloc(sizeof(*result), GFP_KERNEL); |
| if (!result) |
| return ERR_PTR(-ENOMEM); |
| |
| result->def = -1; |
| |
| nla_for_each_nested(key, keys, rem) { |
| memset(&parse, 0, sizeof(parse)); |
| parse.idx = -1; |
| |
| err = nl80211_parse_key_new(info, key, &parse); |
| if (err) |
| goto error; |
| err = -EINVAL; |
| if (!parse.p.key) |
| goto error; |
| if (parse.idx < 0 || parse.idx > 3) { |
| GENL_SET_ERR_MSG(info, "key index out of range [0-3]"); |
| goto error; |
| } |
| if (parse.def) { |
| if (def) { |
| GENL_SET_ERR_MSG(info, |
| "only one key can be default"); |
| goto error; |
| } |
| def = 1; |
| result->def = parse.idx; |
| if (!parse.def_uni || !parse.def_multi) |
| goto error; |
| } else if (parse.defmgmt) |
| goto error; |
| err = cfg80211_validate_key_settings(rdev, &parse.p, |
| parse.idx, false, NULL); |
| if (err) |
| goto error; |
| if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 && |
| parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) { |
| GENL_SET_ERR_MSG(info, "connect key must be WEP"); |
| err = -EINVAL; |
| goto error; |
| } |
| result->params[parse.idx].cipher = parse.p.cipher; |
| result->params[parse.idx].key_len = parse.p.key_len; |
| result->params[parse.idx].key = result->data[parse.idx]; |
| memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); |
| |
| /* must be WEP key if we got here */ |
| if (no_ht) |
| *no_ht = true; |
| } |
| |
| if (result->def < 0) { |
| err = -EINVAL; |
| GENL_SET_ERR_MSG(info, "need a default/TX key"); |
| goto error; |
| } |
| |
| return result; |
| error: |
| kfree(result); |
| return ERR_PTR(err); |
| } |
| |
| static int nl80211_key_allowed(struct wireless_dev *wdev) |
| { |
| ASSERT_WDEV_LOCK(wdev); |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_MESH_POINT: |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (wdev->u.ibss.current_bss) |
| return 0; |
| return -ENOLINK; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (wdev->connected) |
| return 0; |
| return -ENOLINK; |
| case NL80211_IFTYPE_NAN: |
| if (wiphy_ext_feature_isset(wdev->wiphy, |
| NL80211_EXT_FEATURE_SECURE_NAN)) |
| return 0; |
| return -EINVAL; |
| case NL80211_IFTYPE_UNSPECIFIED: |
| case NL80211_IFTYPE_OCB: |
| case NL80211_IFTYPE_MONITOR: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| case NL80211_IFTYPE_WDS: |
| case NUM_NL80211_IFTYPES: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, |
| u32 freq) |
| { |
| struct ieee80211_channel *chan; |
| |
| chan = ieee80211_get_channel_khz(wiphy, freq); |
| if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) |
| return NULL; |
| return chan; |
| } |
| |
| static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
| { |
| struct nlattr *nl_modes = nla_nest_start_noflag(msg, attr); |
| int i; |
| |
| if (!nl_modes) |
| goto nla_put_failure; |
| |
| i = 0; |
| while (ifmodes) { |
| if ((ifmodes & 1) && nla_put_flag(msg, i)) |
| goto nla_put_failure; |
| ifmodes >>= 1; |
| i++; |
| } |
| |
| nla_nest_end(msg, nl_modes); |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_put_iface_combinations(struct wiphy *wiphy, |
| struct sk_buff *msg, |
| bool large) |
| { |
| struct nlattr *nl_combis; |
| int i, j; |
| |
| nl_combis = nla_nest_start_noflag(msg, |
| NL80211_ATTR_INTERFACE_COMBINATIONS); |
| if (!nl_combis) |
| goto nla_put_failure; |
| |
| for (i = 0; i < wiphy->n_iface_combinations; i++) { |
| const struct ieee80211_iface_combination *c; |
| struct nlattr *nl_combi, *nl_limits; |
| |
| c = &wiphy->iface_combinations[i]; |
| |
| nl_combi = nla_nest_start_noflag(msg, i + 1); |
| if (!nl_combi) |
| goto nla_put_failure; |
| |
| nl_limits = nla_nest_start_noflag(msg, |
| NL80211_IFACE_COMB_LIMITS); |
| if (!nl_limits) |
| goto nla_put_failure; |
| |
| for (j = 0; j < c->n_limits; j++) { |
| struct nlattr *nl_limit; |
| |
| nl_limit = nla_nest_start_noflag(msg, j + 1); |
| if (!nl_limit) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
| c->limits[j].max)) |
| goto nla_put_failure; |
| if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
| c->limits[j].types)) |
| goto nla_put_failure; |
| nla_nest_end(msg, nl_limit); |
| } |
| |
| nla_nest_end(msg, nl_limits); |
| |
| if (c->beacon_int_infra_match && |
| nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, |
| c->num_different_channels) || |
| nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, |
| c->max_interfaces)) |
| goto nla_put_failure; |
| if (large && |
| (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, |
| c->radar_detect_widths) || |
| nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS, |
| c->radar_detect_regions))) |
| goto nla_put_failure; |
| if (c->beacon_int_min_gcd && |
| nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD, |
| c->beacon_int_min_gcd)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nl_combi); |
| } |
| |
| nla_nest_end(msg, nl_combis); |
| |
| return 0; |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| #ifdef CONFIG_PM |
| static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; |
| struct nlattr *nl_tcp; |
| |
| if (!tcp) |
| return 0; |
| |
| nl_tcp = nla_nest_start_noflag(msg, |
| NL80211_WOWLAN_TRIG_TCP_CONNECTION); |
| if (!nl_tcp) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
| tcp->data_payload_max)) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
| tcp->data_payload_max)) |
| return -ENOBUFS; |
| |
| if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) |
| return -ENOBUFS; |
| |
| if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, |
| sizeof(*tcp->tok), tcp->tok)) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, |
| tcp->data_interval_max)) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, |
| tcp->wake_payload_max)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, nl_tcp); |
| return 0; |
| } |
| |
| static int nl80211_send_wowlan(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev, |
| bool large) |
| { |
| struct nlattr *nl_wowlan; |
| |
| if (!rdev->wiphy.wowlan) |
| return 0; |
| |
| nl_wowlan = nla_nest_start_noflag(msg, |
| NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); |
| if (!nl_wowlan) |
| return -ENOBUFS; |
| |
| if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
| ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
| return -ENOBUFS; |
| |
| if (rdev->wiphy.wowlan->n_patterns) { |
| struct nl80211_pattern_support pat = { |
| .max_patterns = rdev->wiphy.wowlan->n_patterns, |
| .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, |
| .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, |
| .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, |
| }; |
| |
| if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
| sizeof(pat), &pat)) |
| return -ENOBUFS; |
| } |
| |
| if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) && |
| nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT, |
| rdev->wiphy.wowlan->max_nd_match_sets)) |
| return -ENOBUFS; |
| |
| if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, nl_wowlan); |
| |
| return 0; |
| } |
| #endif |
| |
| static int nl80211_send_coalesce(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev) |
| { |
| struct nl80211_coalesce_rule_support rule; |
| |
| if (!rdev->wiphy.coalesce) |
| return 0; |
| |
| rule.max_rules = rdev->wiphy.coalesce->n_rules; |
| rule.max_delay = rdev->wiphy.coalesce->max_delay; |
| rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; |
| rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; |
| rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; |
| rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; |
| |
| if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) |
| return -ENOBUFS; |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_send_iftype_data(struct sk_buff *msg, |
| const struct ieee80211_supported_band *sband, |
| const struct ieee80211_sband_iftype_data *iftdata) |
| { |
| const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap; |
| const struct ieee80211_sta_eht_cap *eht_cap = &iftdata->eht_cap; |
| |
| if (nl80211_put_iftypes(msg, NL80211_BAND_IFTYPE_ATTR_IFTYPES, |
| iftdata->types_mask)) |
| return -ENOBUFS; |
| |
| if (he_cap->has_he) { |
| if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC, |
| sizeof(he_cap->he_cap_elem.mac_cap_info), |
| he_cap->he_cap_elem.mac_cap_info) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY, |
| sizeof(he_cap->he_cap_elem.phy_cap_info), |
| he_cap->he_cap_elem.phy_cap_info) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET, |
| sizeof(he_cap->he_mcs_nss_supp), |
| &he_cap->he_mcs_nss_supp) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE, |
| sizeof(he_cap->ppe_thres), he_cap->ppe_thres)) |
| return -ENOBUFS; |
| } |
| |
| if (eht_cap->has_eht && he_cap->has_he) { |
| u8 mcs_nss_size, ppe_thresh_size; |
| u16 ppe_thres_hdr; |
| bool is_ap; |
| |
| is_ap = iftdata->types_mask & BIT(NL80211_IFTYPE_AP) || |
| iftdata->types_mask & BIT(NL80211_IFTYPE_P2P_GO); |
| |
| mcs_nss_size = |
| ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, |
| &eht_cap->eht_cap_elem, |
| is_ap); |
| |
| ppe_thres_hdr = get_unaligned_le16(&eht_cap->eht_ppe_thres[0]); |
| ppe_thresh_size = |
| ieee80211_eht_ppe_size(ppe_thres_hdr, |
| eht_cap->eht_cap_elem.phy_cap_info); |
| |
| if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_MAC, |
| sizeof(eht_cap->eht_cap_elem.mac_cap_info), |
| eht_cap->eht_cap_elem.mac_cap_info) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_PHY, |
| sizeof(eht_cap->eht_cap_elem.phy_cap_info), |
| eht_cap->eht_cap_elem.phy_cap_info) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_MCS_SET, |
| mcs_nss_size, &eht_cap->eht_mcs_nss_supp) || |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_PPE, |
| ppe_thresh_size, eht_cap->eht_ppe_thres)) |
| return -ENOBUFS; |
| } |
| |
| if (sband->band == NL80211_BAND_6GHZ && |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA, |
| sizeof(iftdata->he_6ghz_capa), |
| &iftdata->he_6ghz_capa)) |
| return -ENOBUFS; |
| |
| if (iftdata->vendor_elems.data && iftdata->vendor_elems.len && |
| nla_put(msg, NL80211_BAND_IFTYPE_ATTR_VENDOR_ELEMS, |
| iftdata->vendor_elems.len, iftdata->vendor_elems.data)) |
| return -ENOBUFS; |
| |
| return 0; |
| } |
| |
| static int nl80211_send_band_rateinfo(struct sk_buff *msg, |
| struct ieee80211_supported_band *sband, |
| bool large) |
| { |
| struct nlattr *nl_rates, *nl_rate; |
| struct ieee80211_rate *rate; |
| int i; |
| |
| /* add HT info */ |
| if (sband->ht_cap.ht_supported && |
| (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, |
| sizeof(sband->ht_cap.mcs), |
| &sband->ht_cap.mcs) || |
| nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, |
| sband->ht_cap.cap) || |
| nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, |
| sband->ht_cap.ampdu_factor) || |
| nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, |
| sband->ht_cap.ampdu_density))) |
| return -ENOBUFS; |
| |
| /* add VHT info */ |
| if (sband->vht_cap.vht_supported && |
| (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, |
| sizeof(sband->vht_cap.vht_mcs), |
| &sband->vht_cap.vht_mcs) || |
| nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, |
| sband->vht_cap.cap))) |
| return -ENOBUFS; |
| |
| if (large && sband->n_iftype_data) { |
| struct nlattr *nl_iftype_data = |
| nla_nest_start_noflag(msg, |
| NL80211_BAND_ATTR_IFTYPE_DATA); |
| int err; |
| |
| if (!nl_iftype_data) |
| return -ENOBUFS; |
| |
| for (i = 0; i < sband->n_iftype_data; i++) { |
| struct nlattr *iftdata; |
| |
| iftdata = nla_nest_start_noflag(msg, i + 1); |
| if (!iftdata) |
| return -ENOBUFS; |
| |
| err = nl80211_send_iftype_data(msg, sband, |
| &sband->iftype_data[i]); |
| if (err) |
| return err; |
| |
| nla_nest_end(msg, iftdata); |
| } |
| |
| nla_nest_end(msg, nl_iftype_data); |
| } |
| |
| /* add EDMG info */ |
| if (large && sband->edmg_cap.channels && |
| (nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_CHANNELS, |
| sband->edmg_cap.channels) || |
| nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_BW_CONFIG, |
| sband->edmg_cap.bw_config))) |
| |
| return -ENOBUFS; |
| |
| /* add bitrates */ |
| nl_rates = nla_nest_start_noflag(msg, NL80211_BAND_ATTR_RATES); |
| if (!nl_rates) |
| return -ENOBUFS; |
| |
| for (i = 0; i < sband->n_bitrates; i++) { |
| nl_rate = nla_nest_start_noflag(msg, i); |
| if (!nl_rate) |
| return -ENOBUFS; |
| |
| rate = &sband->bitrates[i]; |
| if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
| rate->bitrate)) |
| return -ENOBUFS; |
| if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && |
| nla_put_flag(msg, |
| NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, nl_rate); |
| } |
| |
| nla_nest_end(msg, nl_rates); |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_send_mgmt_stypes(struct sk_buff *msg, |
| const struct ieee80211_txrx_stypes *mgmt_stypes) |
| { |
| u16 stypes; |
| struct nlattr *nl_ftypes, *nl_ifs; |
| enum nl80211_iftype ift; |
| int i; |
| |
| if (!mgmt_stypes) |
| return 0; |
| |
| nl_ifs = nla_nest_start_noflag(msg, NL80211_ATTR_TX_FRAME_TYPES); |
| if (!nl_ifs) |
| return -ENOBUFS; |
| |
| for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
| nl_ftypes = nla_nest_start_noflag(msg, ift); |
| if (!nl_ftypes) |
| return -ENOBUFS; |
| i = 0; |
| stypes = mgmt_stypes[ift].tx; |
| while (stypes) { |
| if ((stypes & 1) && |
| nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, |
| (i << 4) | IEEE80211_FTYPE_MGMT)) |
| return -ENOBUFS; |
| stypes >>= 1; |
| i++; |
| } |
| nla_nest_end(msg, nl_ftypes); |
| } |
| |
| nla_nest_end(msg, nl_ifs); |
| |
| nl_ifs = nla_nest_start_noflag(msg, NL80211_ATTR_RX_FRAME_TYPES); |
| if (!nl_ifs) |
| return -ENOBUFS; |
| |
| for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
| nl_ftypes = nla_nest_start_noflag(msg, ift); |
| if (!nl_ftypes) |
| return -ENOBUFS; |
| i = 0; |
| stypes = mgmt_stypes[ift].rx; |
| while (stypes) { |
| if ((stypes & 1) && |
| nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, |
| (i << 4) | IEEE80211_FTYPE_MGMT)) |
| return -ENOBUFS; |
| stypes >>= 1; |
| i++; |
| } |
| nla_nest_end(msg, nl_ftypes); |
| } |
| nla_nest_end(msg, nl_ifs); |
| |
| return 0; |
| } |
| |
| #define CMD(op, n) \ |
| do { \ |
| if (rdev->ops->op) { \ |
| i++; \ |
| if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
| goto nla_put_failure; \ |
| } \ |
| } while (0) |
| |
| static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| int i = 0; |
| |
| /* |
| * do *NOT* add anything into this function, new things need to be |
| * advertised only to new versions of userspace that can deal with |
| * the split (and they can't possibly care about new features... |
| */ |
| CMD(add_virtual_intf, NEW_INTERFACE); |
| CMD(change_virtual_intf, SET_INTERFACE); |
| CMD(add_key, NEW_KEY); |
| CMD(start_ap, START_AP); |
| CMD(add_station, NEW_STATION); |
| CMD(add_mpath, NEW_MPATH); |
| CMD(update_mesh_config, SET_MESH_CONFIG); |
| CMD(change_bss, SET_BSS); |
| CMD(auth, AUTHENTICATE); |
| CMD(assoc, ASSOCIATE); |
| CMD(deauth, DEAUTHENTICATE); |
| CMD(disassoc, DISASSOCIATE); |
| CMD(join_ibss, JOIN_IBSS); |
| CMD(join_mesh, JOIN_MESH); |
| CMD(set_pmksa, SET_PMKSA); |
| CMD(del_pmksa, DEL_PMKSA); |
| CMD(flush_pmksa, FLUSH_PMKSA); |
| if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
| CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
| CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
| CMD(mgmt_tx, FRAME); |
| CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
| if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
| i++; |
| if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
| goto nla_put_failure; |
| } |
| if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || |
| rdev->ops->join_mesh) { |
| i++; |
| if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) |
| goto nla_put_failure; |
| } |
| if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
| CMD(tdls_mgmt, TDLS_MGMT); |
| CMD(tdls_oper, TDLS_OPER); |
| } |
| if (rdev->wiphy.max_sched_scan_reqs) |
| CMD(sched_scan_start, START_SCHED_SCAN); |
| CMD(probe_client, PROBE_CLIENT); |
| CMD(set_noack_map, SET_NOACK_MAP); |
| if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
| i++; |
| if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
| goto nla_put_failure; |
| } |
| CMD(start_p2p_device, START_P2P_DEVICE); |
| CMD(set_mcast_rate, SET_MCAST_RATE); |
| #ifdef CONFIG_NL80211_TESTMODE |
| CMD(testmode_cmd, TESTMODE); |
| #endif |
| |
| if (rdev->ops->connect || rdev->ops->auth) { |
| i++; |
| if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
| goto nla_put_failure; |
| } |
| |
| if (rdev->ops->disconnect || rdev->ops->deauth) { |
| i++; |
| if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
| goto nla_put_failure; |
| } |
| |
| return i; |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| static int |
| nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap, |
| struct sk_buff *msg) |
| { |
| struct nlattr *ftm; |
| |
| if (!cap->ftm.supported) |
| return 0; |
| |
| ftm = nla_nest_start_noflag(msg, NL80211_PMSR_TYPE_FTM); |
| if (!ftm) |
| return -ENOBUFS; |
| |
| if (cap->ftm.asap && nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_ASAP)) |
| return -ENOBUFS; |
| if (cap->ftm.non_asap && |
| nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP)) |
| return -ENOBUFS; |
| if (cap->ftm.request_lci && |
| nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI)) |
| return -ENOBUFS; |
| if (cap->ftm.request_civicloc && |
| nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC)) |
| return -ENOBUFS; |
| if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES, |
| cap->ftm.preambles)) |
| return -ENOBUFS; |
| if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS, |
| cap->ftm.bandwidths)) |
| return -ENOBUFS; |
| if (cap->ftm.max_bursts_exponent >= 0 && |
| nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT, |
| cap->ftm.max_bursts_exponent)) |
| return -ENOBUFS; |
| if (cap->ftm.max_ftms_per_burst && |
| nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST, |
| cap->ftm.max_ftms_per_burst)) |
| return -ENOBUFS; |
| if (cap->ftm.trigger_based && |
| nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED)) |
| return -ENOBUFS; |
| if (cap->ftm.non_trigger_based && |
| nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, ftm); |
| return 0; |
| } |
| |
| static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| const struct cfg80211_pmsr_capabilities *cap = rdev->wiphy.pmsr_capa; |
| struct nlattr *pmsr, *caps; |
| |
| if (!cap) |
| return 0; |
| |
| /* |
| * we don't need to clean up anything here since the caller |
| * will genlmsg_cancel() if we fail |
| */ |
| |
| pmsr = nla_nest_start_noflag(msg, NL80211_ATTR_PEER_MEASUREMENTS); |
| if (!pmsr) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_PMSR_ATTR_MAX_PEERS, cap->max_peers)) |
| return -ENOBUFS; |
| |
| if (cap->report_ap_tsf && |
| nla_put_flag(msg, NL80211_PMSR_ATTR_REPORT_AP_TSF)) |
| return -ENOBUFS; |
| |
| if (cap->randomize_mac_addr && |
| nla_put_flag(msg, NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR)) |
| return -ENOBUFS; |
| |
| caps = nla_nest_start_noflag(msg, NL80211_PMSR_ATTR_TYPE_CAPA); |
| if (!caps) |
| return -ENOBUFS; |
| |
| if (nl80211_send_pmsr_ftm_capa(cap, msg)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, caps); |
| nla_nest_end(msg, pmsr); |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_put_iftype_akm_suites(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| int i; |
| struct nlattr *nested, *nested_akms; |
| const struct wiphy_iftype_akm_suites *iftype_akms; |
| |
| if (!rdev->wiphy.num_iftype_akm_suites || |
| !rdev->wiphy.iftype_akm_suites) |
| return 0; |
| |
| nested = nla_nest_start(msg, NL80211_ATTR_IFTYPE_AKM_SUITES); |
| if (!nested) |
| return -ENOBUFS; |
| |
| for (i = 0; i < rdev->wiphy.num_iftype_akm_suites; i++) { |
| nested_akms = nla_nest_start(msg, i + 1); |
| if (!nested_akms) |
| return -ENOBUFS; |
| |
| iftype_akms = &rdev->wiphy.iftype_akm_suites[i]; |
| |
| if (nl80211_put_iftypes(msg, NL80211_IFTYPE_AKM_ATTR_IFTYPES, |
| iftype_akms->iftypes_mask)) |
| return -ENOBUFS; |
| |
| if (nla_put(msg, NL80211_IFTYPE_AKM_ATTR_SUITES, |
| sizeof(u32) * iftype_akms->n_akm_suites, |
| iftype_akms->akm_suites)) { |
| return -ENOBUFS; |
| } |
| nla_nest_end(msg, nested_akms); |
| } |
| |
| nla_nest_end(msg, nested); |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_put_tid_config_support(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| struct nlattr *supp; |
| |
| if (!rdev->wiphy.tid_config_support.vif && |
| !rdev->wiphy.tid_config_support.peer) |
| return 0; |
| |
| supp = nla_nest_start(msg, NL80211_ATTR_TID_CONFIG); |
| if (!supp) |
| return -ENOSPC; |
| |
| if (rdev->wiphy.tid_config_support.vif && |
| nla_put_u64_64bit(msg, NL80211_TID_CONFIG_ATTR_VIF_SUPP, |
| rdev->wiphy.tid_config_support.vif, |
| NL80211_TID_CONFIG_ATTR_PAD)) |
| goto fail; |
| |
| if (rdev->wiphy.tid_config_support.peer && |
| nla_put_u64_64bit(msg, NL80211_TID_CONFIG_ATTR_PEER_SUPP, |
| rdev->wiphy.tid_config_support.peer, |
| NL80211_TID_CONFIG_ATTR_PAD)) |
| goto fail; |
| |
| /* for now we just use the same value ... makes more sense */ |
| if (nla_put_u8(msg, NL80211_TID_CONFIG_ATTR_RETRY_SHORT, |
| rdev->wiphy.tid_config_support.max_retry)) |
| goto fail; |
| if (nla_put_u8(msg, NL80211_TID_CONFIG_ATTR_RETRY_LONG, |
| rdev->wiphy.tid_config_support.max_retry)) |
| goto fail; |
| |
| nla_nest_end(msg, supp); |
| |
| return 0; |
| fail: |
| nla_nest_cancel(msg, supp); |
| return -ENOBUFS; |
| } |
| |
| static int |
| nl80211_put_sar_specs(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| struct nlattr *sar_capa, *specs, *sub_freq_range; |
| u8 num_freq_ranges; |
| int i; |
| |
| if (!rdev->wiphy.sar_capa) |
| return 0; |
| |
| num_freq_ranges = rdev->wiphy.sar_capa->num_freq_ranges; |
| |
| sar_capa = nla_nest_start(msg, NL80211_ATTR_SAR_SPEC); |
| if (!sar_capa) |
| return -ENOSPC; |
| |
| if (nla_put_u32(msg, NL80211_SAR_ATTR_TYPE, rdev->wiphy.sar_capa->type)) |
| goto fail; |
| |
| specs = nla_nest_start(msg, NL80211_SAR_ATTR_SPECS); |
| if (!specs) |
| goto fail; |
| |
| /* report supported freq_ranges */ |
| for (i = 0; i < num_freq_ranges; i++) { |
| sub_freq_range = nla_nest_start(msg, i + 1); |
| if (!sub_freq_range) |
| goto fail; |
| |
| if (nla_put_u32(msg, NL80211_SAR_ATTR_SPECS_START_FREQ, |
| rdev->wiphy.sar_capa->freq_ranges[i].start_freq)) |
| goto fail; |
| |
| if (nla_put_u32(msg, NL80211_SAR_ATTR_SPECS_END_FREQ, |
| rdev->wiphy.sar_capa->freq_ranges[i].end_freq)) |
| goto fail; |
| |
| nla_nest_end(msg, sub_freq_range); |
| } |
| |
| nla_nest_end(msg, specs); |
| nla_nest_end(msg, sar_capa); |
| |
| return 0; |
| fail: |
| nla_nest_cancel(msg, sar_capa); |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_put_mbssid_support(struct wiphy *wiphy, struct sk_buff *msg) |
| { |
| struct nlattr *config; |
| |
| if (!wiphy->mbssid_max_interfaces) |
| return 0; |
| |
| config = nla_nest_start(msg, NL80211_ATTR_MBSSID_CONFIG); |
| if (!config) |
| return -ENOBUFS; |
| |
| if (nla_put_u8(msg, NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES, |
| wiphy->mbssid_max_interfaces)) |
| goto fail; |
| |
| if (wiphy->ema_max_profile_periodicity && |
| nla_put_u8(msg, |
| NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY, |
| wiphy->ema_max_profile_periodicity)) |
| goto fail; |
| |
| nla_nest_end(msg, config); |
| return 0; |
| |
| fail: |
| nla_nest_cancel(msg, config); |
| return -ENOBUFS; |
| } |
| |
| struct nl80211_dump_wiphy_state { |
| s64 filter_wiphy; |
| long start; |
| long split_start, band_start, chan_start, capa_start; |
| bool split; |
| }; |
| |
| static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, |
| enum nl80211_commands cmd, |
| struct sk_buff *msg, u32 portid, u32 seq, |
| int flags, struct nl80211_dump_wiphy_state *state) |
| { |
| void *hdr; |
| struct nlattr *nl_bands, *nl_band; |
| struct nlattr *nl_freqs, *nl_freq; |
| struct nlattr *nl_cmds; |
| enum nl80211_band band; |
| struct ieee80211_channel *chan; |
| int i; |
| const struct ieee80211_txrx_stypes *mgmt_stypes = |
| rdev->wiphy.mgmt_stypes; |
| u32 features; |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
| if (!hdr) |
| return -ENOBUFS; |
| |
| if (WARN_ON(!state)) |
| return -EINVAL; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, |
| wiphy_name(&rdev->wiphy)) || |
| nla_put_u32(msg, NL80211_ATTR_GENERATION, |
| cfg80211_rdev_list_generation)) |
| goto nla_put_failure; |
| |
| if (cmd != NL80211_CMD_NEW_WIPHY) |
| goto finish; |
| |
| switch (state->split_start) { |
| case 0: |
| if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
| rdev->wiphy.retry_short) || |
| nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, |
| rdev->wiphy.retry_long) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, |
| rdev->wiphy.frag_threshold) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, |
| rdev->wiphy.rts_threshold) || |
| nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
| rdev->wiphy.coverage_class) || |
| nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
| rdev->wiphy.max_scan_ssids) || |
| nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
| rdev->wiphy.max_sched_scan_ssids) || |
| nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
| rdev->wiphy.max_scan_ie_len) || |
| nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
| rdev->wiphy.max_sched_scan_ie_len) || |
| nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
| rdev->wiphy.max_match_sets)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && |
| nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) |
| goto nla_put_failure; |
| if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
| nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) |
| goto nla_put_failure; |
| if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && |
| nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) |
| goto nla_put_failure; |
| if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && |
| nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) |
| goto nla_put_failure; |
| if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && |
| nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) |
| goto nla_put_failure; |
| if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && |
| nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) |
| goto nla_put_failure; |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 1: |
| if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, |
| sizeof(u32) * rdev->wiphy.n_cipher_suites, |
| rdev->wiphy.cipher_suites)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
| rdev->wiphy.max_num_pmkids)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
| nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
| rdev->wiphy.available_antennas_tx) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, |
| rdev->wiphy.available_antennas_rx)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && |
| nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, |
| rdev->wiphy.probe_resp_offload)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.available_antennas_tx || |
| rdev->wiphy.available_antennas_rx) && |
| rdev->ops->get_antenna) { |
| u32 tx_ant = 0, rx_ant = 0; |
| int res; |
| |
| res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); |
| if (!res) { |
| if (nla_put_u32(msg, |
| NL80211_ATTR_WIPHY_ANTENNA_TX, |
| tx_ant) || |
| nla_put_u32(msg, |
| NL80211_ATTR_WIPHY_ANTENNA_RX, |
| rx_ant)) |
| goto nla_put_failure; |
| } |
| } |
| |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 2: |
| if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
| rdev->wiphy.interface_modes)) |
| goto nla_put_failure; |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 3: |
| nl_bands = nla_nest_start_noflag(msg, |
| NL80211_ATTR_WIPHY_BANDS); |
| if (!nl_bands) |
| goto nla_put_failure; |
| |
| for (band = state->band_start; |
| band < (state->split ? |
| NUM_NL80211_BANDS : |
| NL80211_BAND_60GHZ + 1); |
| band++) { |
| struct ieee80211_supported_band *sband; |
| |
| /* omit higher bands for ancient software */ |
| if (band > NL80211_BAND_5GHZ && !state->split) |
| break; |
| |
| sband = rdev->wiphy.bands[band]; |
| |
| if (!sband) |
| continue; |
| |
| nl_band = nla_nest_start_noflag(msg, band); |
| if (!nl_band) |
| goto nla_put_failure; |
| |
| switch (state->chan_start) { |
| case 0: |
| if (nl80211_send_band_rateinfo(msg, sband, |
| state->split)) |
| goto nla_put_failure; |
| state->chan_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| default: |
| /* add frequencies */ |
| nl_freqs = nla_nest_start_noflag(msg, |
| NL80211_BAND_ATTR_FREQS); |
| if (!nl_freqs) |
| goto nla_put_failure; |
| |
| for (i = state->chan_start - 1; |
| i < sband->n_channels; |
| i++) { |
| nl_freq = nla_nest_start_noflag(msg, |
| i); |
| if (!nl_freq) |
| goto nla_put_failure; |
| |
| chan = &sband->channels[i]; |
| |
| if (nl80211_msg_put_channel( |
| msg, &rdev->wiphy, chan, |
| state->split)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nl_freq); |
| if (state->split) |
| break; |
| } |
| if (i < sband->n_channels) |
| state->chan_start = i + 2; |
| else |
| state->chan_start = 0; |
| nla_nest_end(msg, nl_freqs); |
| } |
| |
| nla_nest_end(msg, nl_band); |
| |
| if (state->split) { |
| /* start again here */ |
| if (state->chan_start) |
| band--; |
| break; |
| } |
| } |
| nla_nest_end(msg, nl_bands); |
| |
| if (band < NUM_NL80211_BANDS) |
| state->band_start = band + 1; |
| else |
| state->band_start = 0; |
| |
| /* if bands & channels are done, continue outside */ |
| if (state->band_start == 0 && state->chan_start == 0) |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 4: |
| nl_cmds = nla_nest_start_noflag(msg, |
| NL80211_ATTR_SUPPORTED_COMMANDS); |
| if (!nl_cmds) |
| goto nla_put_failure; |
| |
| i = nl80211_add_commands_unsplit(rdev, msg); |
| if (i < 0) |
| goto nla_put_failure; |
| if (state->split) { |
| CMD(crit_proto_start, CRIT_PROTOCOL_START); |
| CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); |
| if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) |
| CMD(channel_switch, CHANNEL_SWITCH); |
| CMD(set_qos_map, SET_QOS_MAP); |
| if (rdev->wiphy.features & |
| NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) |
| CMD(add_tx_ts, ADD_TX_TS); |
| CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST); |
| CMD(update_connect_params, UPDATE_CONNECT_PARAMS); |
| CMD(update_ft_ies, UPDATE_FT_IES); |
| if (rdev->wiphy.sar_capa) |
| CMD(set_sar_specs, SET_SAR_SPECS); |
| } |
| #undef CMD |
| |
| nla_nest_end(msg, nl_cmds); |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 5: |
| if (rdev->ops->remain_on_channel && |
| (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
| nla_put_u32(msg, |
| NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, |
| rdev->wiphy.max_remain_on_channel_duration)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
| nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) |
| goto nla_put_failure; |
| |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 6: |
| #ifdef CONFIG_PM |
| if (nl80211_send_wowlan(msg, rdev, state->split)) |
| goto nla_put_failure; |
| state->split_start++; |
| if (state->split) |
| break; |
| #else |
| state->split_start++; |
| #endif |
| fallthrough; |
| case 7: |
| if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
| rdev->wiphy.software_iftypes)) |
| goto nla_put_failure; |
| |
| if (nl80211_put_iface_combinations(&rdev->wiphy, msg, |
| state->split)) |
| goto nla_put_failure; |
| |
| state->split_start++; |
| if (state->split) |
| break; |
| fallthrough; |
| case 8: |
| if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
| nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, |
| rdev->wiphy.ap_sme_capa)) |
| goto nla_put_failure; |
| |
| features = rdev->wiphy.features; |
| /* |
| * We can only add the per-channel limit information if the |
| * dump is split, otherwise it makes it too big. Therefore |
| * only advertise it in that case. |
| */ |
| if (state->split) |
| features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; |
| if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.ht_capa_mod_mask && |
| nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, |
| sizeof(*rdev->wiphy.ht_capa_mod_mask), |
| rdev->wiphy.ht_capa_mod_mask)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
| rdev->wiphy.max_acl_mac_addrs && |
| nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, |
| rdev->wiphy.max_acl_mac_addrs)) |
| goto nla_put_failure; |
| |
| /* |
| * Any information below this point is only available to |
| * applications that can deal with it being split. This |
| * helps ensure that newly added capabilities don't break |
| * older tools by overrunning their buffers. |
| * |
| * We still increment split_start so that in the split |
| * case we'll continue with more data in the next round, |
| * but break unconditionally so unsplit data stops here. |
| */ |
| if (state->split) |
| state->split_start++; |
| else |
| state->split_start = 0; |
| break; |
| case 9: |
| if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS, |
| rdev->wiphy.max_sched_scan_plans) || |
| nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL, |
| rdev->wiphy.max_sched_scan_plan_interval) || |
| nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS, |
| rdev->wiphy.max_sched_scan_plan_iterations)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.extended_capabilities && |
| (nla_put(msg, NL80211_ATTR_EXT_CAPA, |
| rdev->wiphy.extended_capabilities_len, |
| rdev->wiphy.extended_capabilities) || |
| nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
| rdev->wiphy.extended_capabilities_len, |
| rdev->wiphy.extended_capabilities_mask))) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.vht_capa_mod_mask && |
| nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, |
| sizeof(*rdev->wiphy.vht_capa_mod_mask), |
| rdev->wiphy.vht_capa_mod_mask)) |
| goto nla_put_failure; |
| |
| if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, |
| rdev->wiphy.perm_addr)) |
| goto nla_put_failure; |
| |
| if (!is_zero_ether_addr(rdev->wiphy.addr_mask) && |
| nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN, |
| rdev->wiphy.addr_mask)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.n_addresses > 1) { |
| void *attr; |
| |
| attr = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); |
| if (!attr) |
| goto nla_put_failure; |
| |
| for (i = 0; i < rdev->wiphy.n_addresses; i++) |
| if (nla_put(msg, i + 1, ETH_ALEN, |
| rdev->wiphy.addresses[i].addr)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, attr); |
| } |
| |
| state->split_start++; |
| break; |
| case 10: |
| if (nl80211_send_coalesce(msg, rdev)) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && |
| (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || |
| nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.max_ap_assoc_sta && |
| nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, |
| rdev->wiphy.max_ap_assoc_sta)) |
| goto nla_put_failure; |
| |
| state->split_start++; |
| break; |
| case 11: |
| if (rdev->wiphy.n_vendor_commands) { |
| const struct nl80211_vendor_cmd_info *info; |
| struct nlattr *nested; |
| |
| nested = nla_nest_start_noflag(msg, |
| NL80211_ATTR_VENDOR_DATA); |
| if (!nested) |
| goto nla_put_failure; |
| |
| for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { |
| info = &rdev->wiphy.vendor_commands[i].info; |
| if (nla_put(msg, i + 1, sizeof(*info), info)) |
| goto nla_put_failure; |
| } |
| nla_nest_end(msg, nested); |
| } |
| |
| if (rdev->wiphy.n_vendor_events) { |
| const struct nl80211_vendor_cmd_info *info; |
| struct nlattr *nested; |
| |
| nested = nla_nest_start_noflag(msg, |
| NL80211_ATTR_VENDOR_EVENTS); |
| if (!nested) |
| goto nla_put_failure; |
| |
| for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { |
| info = &rdev->wiphy.vendor_events[i]; |
| if (nla_put(msg, i + 1, sizeof(*info), info)) |
| goto nla_put_failure; |
| } |
| nla_nest_end(msg, nested); |
| } |
| state->split_start++; |
| break; |
| case 12: |
| if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH && |
| nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS, |
| rdev->wiphy.max_num_csa_counters)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
| nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.max_sched_scan_reqs && |
| nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS, |
| rdev->wiphy.max_sched_scan_reqs)) |
| goto nla_put_failure; |
| |
| if (nla_put(msg, NL80211_ATTR_EXT_FEATURES, |
| sizeof(rdev->wiphy.ext_features), |
| rdev->wiphy.ext_features)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.bss_select_support) { |
| struct nlattr *nested; |
| u32 bss_select_support = rdev->wiphy.bss_select_support; |
| |
| nested = nla_nest_start_noflag(msg, |
| NL80211_ATTR_BSS_SELECT); |
| if (!nested) |
| goto nla_put_failure; |
| |
| i = 0; |
| while (bss_select_support) { |
| if ((bss_select_support & 1) && |
| nla_put_flag(msg, i)) |
| goto nla_put_failure; |
| i++; |
| bss_select_support >>= 1; |
| } |
| nla_nest_end(msg, nested); |
| } |
| |
| state->split_start++; |
| break; |
| case 13: |
| if (rdev->wiphy.num_iftype_ext_capab && |
| rdev->wiphy.iftype_ext_capab) { |
| struct nlattr *nested_ext_capab, *nested; |
| |
| nested = nla_nest_start_noflag(msg, |
| NL80211_ATTR_IFTYPE_EXT_CAPA); |
| if (!nested) |
| goto nla_put_failure; |
| |
| for (i = state->capa_start; |
| i < rdev->wiphy.num_iftype_ext_capab; i++) { |
| const struct wiphy_iftype_ext_capab *capab; |
| |
| capab = &rdev->wiphy.iftype_ext_capab[i]; |
| |
| nested_ext_capab = nla_nest_start_noflag(msg, |
| i); |
| if (!nested_ext_capab || |
| nla_put_u32(msg, NL80211_ATTR_IFTYPE, |
| capab->iftype) || |
| nla_put(msg, NL80211_ATTR_EXT_CAPA, |
| capab->extended_capabilities_len, |
| capab->extended_capabilities) || |
| nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
| capab->extended_capabilities_len, |
| capab->extended_capabilities_mask)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_MLO && |
| (nla_put_u16(msg, |
| NL80211_ATTR_EML_CAPABILITY, |
| capab->eml_capabilities) || |
| nla_put_u16(msg, |
| NL80211_ATTR_MLD_CAPA_AND_OPS, |
| capab->mld_capa_and_ops))) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nested_ext_capab); |
| if (state->split) |
| break; |
| } |
| nla_nest_end(msg, nested); |
| if (i < rdev->wiphy.num_iftype_ext_capab) { |
| state->capa_start = i + 1; |
| break; |
| } |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_BANDS, |
| rdev->wiphy.nan_supported_bands)) |
| goto nla_put_failure; |
| |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_TXQS)) { |
| struct cfg80211_txq_stats txqstats = {}; |
| int res; |
| |
| res = rdev_get_txq_stats(rdev, NULL, &txqstats); |
| if (!res && |
| !nl80211_put_txq_stats(msg, &txqstats, |
| NL80211_ATTR_TXQ_STATS)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_TXQ_LIMIT, |
| rdev->wiphy.txq_limit)) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_ATTR_TXQ_MEMORY_LIMIT, |
| rdev->wiphy.txq_memory_limit)) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_ATTR_TXQ_QUANTUM, |
| rdev->wiphy.txq_quantum)) |
| goto nla_put_failure; |
| } |
| |
| state->split_start++; |
| break; |
| case 14: |
| if (nl80211_send_pmsr_capa(rdev, msg)) |
| goto nla_put_failure; |
| |
| state->split_start++; |
| break; |
| case 15: |
| if (rdev->wiphy.akm_suites && |
| nla_put(msg, NL80211_ATTR_AKM_SUITES, |
| sizeof(u32) * rdev->wiphy.n_akm_suites, |
| rdev->wiphy.akm_suites)) |
| goto nla_put_failure; |
| |
| if (nl80211_put_iftype_akm_suites(rdev, msg)) |
| goto nla_put_failure; |
| |
| if (nl80211_put_tid_config_support(rdev, msg)) |
| goto nla_put_failure; |
| state->split_start++; |
| break; |
| case 16: |
| if (nl80211_put_sar_specs(rdev, msg)) |
| goto nla_put_failure; |
| |
| if (nl80211_put_mbssid_support(&rdev->wiphy, msg)) |
| goto nla_put_failure; |
| |
| if (nla_put_u16(msg, NL80211_ATTR_MAX_NUM_AKM_SUITES, |
| rdev->wiphy.max_num_akm_suites)) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_MLO) |
| nla_put_flag(msg, NL80211_ATTR_MLO_SUPPORT); |
| |
| /* done */ |
| state->split_start = 0; |
| break; |
| } |
| finish: |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_wiphy_parse(struct sk_buff *skb, |
| struct netlink_callback *cb, |
| struct nl80211_dump_wiphy_state *state) |
| { |
| struct nlattr **tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL); |
| int ret; |
| |
| if (!tb) |
| return -ENOMEM; |
| |
| ret = nlmsg_parse_deprecated(cb->nlh, |
| GENL_HDRLEN + nl80211_fam.hdrsize, |
| tb, nl80211_fam.maxattr, |
| nl80211_policy, NULL); |
| /* ignore parse errors for backward compatibility */ |
| if (ret) { |
| ret = 0; |
| goto out; |
| } |
| |
| state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; |
| if (tb[NL80211_ATTR_WIPHY]) |
| state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); |
| if (tb[NL80211_ATTR_WDEV]) |
| state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; |
| if (tb[NL80211_ATTR_IFINDEX]) { |
| struct net_device *netdev; |
| struct cfg80211_registered_device *rdev; |
| int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); |
| |
| netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
| if (!netdev) { |
| ret = -ENODEV; |
| goto out; |
| } |
| if (netdev->ieee80211_ptr) { |
| rdev = wiphy_to_rdev( |
| netdev->ieee80211_ptr->wiphy); |
| state->filter_wiphy = rdev->wiphy_idx; |
| } |
| } |
| |
| ret = 0; |
| out: |
| kfree(tb); |
| return ret; |
| } |
| |
| static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
| { |
| int idx = 0, ret; |
| struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; |
| struct cfg80211_registered_device *rdev; |
| |
| rtnl_lock(); |
| if (!state) { |
| state = kzalloc(sizeof(*state), GFP_KERNEL); |
| if (!state) { |
| rtnl_unlock(); |
| return -ENOMEM; |
| } |
| state->filter_wiphy = -1; |
| ret = nl80211_dump_wiphy_parse(skb, cb, state); |
| if (ret) { |
| kfree(state); |
| rtnl_unlock(); |
| return ret; |
| } |
| cb->args[0] = (long)state; |
| } |
| |
| list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
| if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) |
| continue; |
| if (++idx <= state->start) |
| continue; |
| if (state->filter_wiphy != -1 && |
| state->filter_wiphy != rdev->wiphy_idx) |
| continue; |
| /* attempt to fit multiple wiphy data chunks into the skb */ |
| do { |
| ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, |
| skb, |
| NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, |
| NLM_F_MULTI, state); |
| if (ret < 0) { |
| /* |
| * If sending the wiphy data didn't fit (ENOBUFS |
| * or EMSGSIZE returned), this SKB is still |
| * empty (so it's not too big because another |
| * wiphy dataset is already in the skb) and |
| * we've not tried to adjust the dump allocation |
| * yet ... then adjust the alloc size to be |
| * bigger, and return 1 but with the empty skb. |
| * This results in an empty message being RX'ed |
| * in userspace, but that is ignored. |
| * |
| * We can then retry with the larger buffer. |
| */ |
| if ((ret == -ENOBUFS || ret == -EMSGSIZE) && |
| !skb->len && !state->split && |
| cb->min_dump_alloc < 4096) { |
| cb->min_dump_alloc = 4096; |
| state->split_start = 0; |
| rtnl_unlock(); |
| return 1; |
| } |
| idx--; |
| break; |
| } |
| } while (state->split_start > 0); |
| break; |
| } |
| rtnl_unlock(); |
| |
| state->start = idx; |
| |
| return skb->len; |
| } |
| |
| static int nl80211_dump_wiphy_done(struct netlink_callback *cb) |
| { |
| kfree((void *)cb->args[0]); |
| return 0; |
| } |
| |
| static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct sk_buff *msg; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct nl80211_dump_wiphy_state state = {}; |
| |
| msg = nlmsg_new(4096, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg, |
| info->snd_portid, info->snd_seq, 0, |
| &state) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
| [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, |
| [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, |
| [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, |
| [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, |
| [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, |
| }; |
| |
| static int parse_txq_params(struct nlattr *tb[], |
| struct ieee80211_txq_params *txq_params) |
| { |
| u8 ac; |
| |
| if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
| !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
| !tb[NL80211_TXQ_ATTR_AIFS]) |
| return -EINVAL; |
| |
| ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
| txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
| txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); |
| txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); |
| txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); |
| |
| if (ac >= NL80211_NUM_ACS) |
| return -EINVAL; |
| txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS); |
| return 0; |
| } |
| |
| static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
| { |
| /* |
| * You can only set the channel explicitly for some interfaces, |
| * most have their channel managed via their respective |
| * "establish a connection" command (connect, join, ...) |
| * |
| * For AP/GO and mesh mode, the channel can be set with the |
| * channel userspace API, but is only stored and passed to the |
| * low-level driver when the AP starts or the mesh is joined. |
| * This is for backward compatibility, userspace can also give |
| * the channel in the start-ap or join-mesh commands instead. |
| * |
| * Monitors are special as they are normally slaved to |
| * whatever else is going on, so they have their own special |
| * operation to set the monitor channel if possible. |
| */ |
| return !wdev || |
| wdev->iftype == NL80211_IFTYPE_AP || |
| wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
| wdev->iftype == NL80211_IFTYPE_MONITOR || |
| wdev->iftype == NL80211_IFTYPE_P2P_GO; |
| } |
| |
| static int nl80211_parse_punct_bitmap(struct cfg80211_registered_device *rdev, |
| struct genl_info *info, |
| const struct cfg80211_chan_def *chandef, |
| u16 *punct_bitmap) |
| { |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, NL80211_EXT_FEATURE_PUNCT)) |
| return -EINVAL; |
| |
| *punct_bitmap = nla_get_u32(info->attrs[NL80211_ATTR_PUNCT_BITMAP]); |
| if (!cfg80211_valid_disable_subchannel_bitmap(punct_bitmap, chandef)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
| struct genl_info *info, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct netlink_ext_ack *extack = info->extack; |
| struct nlattr **attrs = info->attrs; |
| u32 control_freq; |
| |
| if (!attrs[NL80211_ATTR_WIPHY_FREQ]) |
| return -EINVAL; |
| |
| control_freq = MHZ_TO_KHZ( |
| nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]) |
| control_freq += |
| nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]); |
| |
| memset(chandef, 0, sizeof(*chandef)); |
| chandef->chan = ieee80211_get_channel_khz(&rdev->wiphy, control_freq); |
| chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
| chandef->center_freq1 = KHZ_TO_MHZ(control_freq); |
| chandef->freq1_offset = control_freq % 1000; |
| chandef->center_freq2 = 0; |
| |
| /* Primary channel not allowed */ |
| if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) { |
| NL_SET_ERR_MSG_ATTR(extack, attrs[NL80211_ATTR_WIPHY_FREQ], |
| "Channel is disabled"); |
| return -EINVAL; |
| } |
| |
| if (attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
| enum nl80211_channel_type chantype; |
| |
| chantype = nla_get_u32(attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); |
| |
| switch (chantype) { |
| case NL80211_CHAN_NO_HT: |
| case NL80211_CHAN_HT20: |
| case NL80211_CHAN_HT40PLUS: |
| case NL80211_CHAN_HT40MINUS: |
| cfg80211_chandef_create(chandef, chandef->chan, |
| chantype); |
| /* user input for center_freq is incorrect */ |
| if (attrs[NL80211_ATTR_CENTER_FREQ1] && |
| chandef->center_freq1 != nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1])) { |
| NL_SET_ERR_MSG_ATTR(extack, |
| attrs[NL80211_ATTR_CENTER_FREQ1], |
| "bad center frequency 1"); |
| return -EINVAL; |
| } |
| /* center_freq2 must be zero */ |
| if (attrs[NL80211_ATTR_CENTER_FREQ2] && |
| nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2])) { |
| NL_SET_ERR_MSG_ATTR(extack, |
| attrs[NL80211_ATTR_CENTER_FREQ2], |
| "center frequency 2 can't be used"); |
| return -EINVAL; |
| } |
| break; |
| default: |
| NL_SET_ERR_MSG_ATTR(extack, |
| attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE], |
| "invalid channel type"); |
| return -EINVAL; |
| } |
| } else if (attrs[NL80211_ATTR_CHANNEL_WIDTH]) { |
| chandef->width = |
| nla_get_u32(attrs[NL80211_ATTR_CHANNEL_WIDTH]); |
| if (chandef->chan->band == NL80211_BAND_S1GHZ) { |
| /* User input error for channel width doesn't match channel */ |
| if (chandef->width != ieee80211_s1g_channel_width(chandef->chan)) { |
| NL_SET_ERR_MSG_ATTR(extack, |
| attrs[NL80211_ATTR_CHANNEL_WIDTH], |
| "bad channel width"); |
| return -EINVAL; |
| } |
| } |
| if (attrs[NL80211_ATTR_CENTER_FREQ1]) { |
| chandef->center_freq1 = |
| nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1]); |
| if (attrs[NL80211_ATTR_CENTER_FREQ1_OFFSET]) |
| chandef->freq1_offset = nla_get_u32( |
| attrs[NL80211_ATTR_CENTER_FREQ1_OFFSET]); |
| else |
| chandef->freq1_offset = 0; |
| } |
| if (attrs[NL80211_ATTR_CENTER_FREQ2]) |
| chandef->center_freq2 = |
| nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) { |
| chandef->edmg.channels = |
| nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]); |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]) |
| chandef->edmg.bw_config = |
| nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]); |
| } else { |
| chandef->edmg.bw_config = 0; |
| chandef->edmg.channels = 0; |
| } |
| |
| if (!cfg80211_chandef_valid(chandef)) { |
| NL_SET_ERR_MSG(extack, "invalid channel definition"); |
| return -EINVAL; |
| } |
| |
| if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
| IEEE80211_CHAN_DISABLED)) { |
| NL_SET_ERR_MSG(extack, "(extension) channel is disabled"); |
| return -EINVAL; |
| } |
| |
| if ((chandef->width == NL80211_CHAN_WIDTH_5 || |
| chandef->width == NL80211_CHAN_WIDTH_10) && |
| !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) { |
| NL_SET_ERR_MSG(extack, "5/10 MHz not supported"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
| struct net_device *dev, |
| struct genl_info *info, |
| int _link_id) |
| { |
| struct cfg80211_chan_def chandef; |
| int result; |
| enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
| struct wireless_dev *wdev = NULL; |
| int link_id = _link_id; |
| |
| if (dev) |
| wdev = dev->ieee80211_ptr; |
| if (!nl80211_can_set_dev_channel(wdev)) |
| return -EOPNOTSUPP; |
| if (wdev) |
| iftype = wdev->iftype; |
| |
| if (link_id < 0) { |
| if (wdev && wdev->valid_links) |
| return -EINVAL; |
| link_id = 0; |
| } |
| |
| result = nl80211_parse_chandef(rdev, info, &chandef); |
| if (result) |
| return result; |
| |
| switch (iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
| iftype)) |
| return -EINVAL; |
| if (wdev->links[link_id].ap.beacon_interval) { |
| struct ieee80211_channel *cur_chan; |
| |
| if (!dev || !rdev->ops->set_ap_chanwidth || |
| !(rdev->wiphy.features & |
| NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) |
| return -EBUSY; |
| |
| /* Only allow dynamic channel width changes */ |
| cur_chan = wdev->links[link_id].ap.chandef.chan; |
| if (chandef.chan != cur_chan) |
| return -EBUSY; |
| |
| result = rdev_set_ap_chanwidth(rdev, dev, link_id, |
| &chandef); |
| if (result) |
| return result; |
| wdev->links[link_id].ap.chandef = chandef; |
| } else { |
| wdev->u.ap.preset_chandef = chandef; |
| } |
| return 0; |
| case NL80211_IFTYPE_MESH_POINT: |
| return cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
| case NL80211_IFTYPE_MONITOR: |
| return cfg80211_set_monitor_channel(rdev, &chandef); |
| default: |
| break; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| struct net_device *netdev = info->user_ptr[1]; |
| int ret; |
| |
| wdev_lock(netdev->ieee80211_ptr); |
| ret = __nl80211_set_channel(rdev, netdev, info, link_id); |
| wdev_unlock(netdev->ieee80211_ptr); |
| |
| return ret; |
| } |
| |
| static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = NULL; |
| struct net_device *netdev = NULL; |
| struct wireless_dev *wdev; |
| int result = 0, rem_txq_params = 0; |
| struct nlattr *nl_txq_params; |
| u32 changed; |
| u8 retry_short = 0, retry_long = 0; |
| u32 frag_threshold = 0, rts_threshold = 0; |
| u8 coverage_class = 0; |
| u32 txq_limit = 0, txq_memory_limit = 0, txq_quantum = 0; |
| |
| rtnl_lock(); |
| /* |
| * Try to find the wiphy and netdev. Normally this |
| * function shouldn't need the netdev, but this is |
| * done for backward compatibility -- previously |
| * setting the channel was done per wiphy, but now |
| * it is per netdev. Previous userland like hostapd |
| * also passed a netdev to set_wiphy, so that it is |
| * possible to let that go to the right netdev! |
| */ |
| |
| if (info->attrs[NL80211_ATTR_IFINDEX]) { |
| int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); |
| |
| netdev = __dev_get_by_index(genl_info_net(info), ifindex); |
| if (netdev && netdev->ieee80211_ptr) |
| rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); |
| else |
| netdev = NULL; |
| } |
| |
| if (!netdev) { |
| rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
| info->attrs); |
| if (IS_ERR(rdev)) { |
| rtnl_unlock(); |
| return PTR_ERR(rdev); |
| } |
| wdev = NULL; |
| netdev = NULL; |
| result = 0; |
| } else |
| wdev = netdev->ieee80211_ptr; |
| |
| wiphy_lock(&rdev->wiphy); |
| |
| /* |
| * end workaround code, by now the rdev is available |
| * and locked, and wdev may or may not be NULL. |
| */ |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_NAME]) |
| result = cfg80211_dev_rename( |
| rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); |
| rtnl_unlock(); |
| |
| if (result) |
| goto out; |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { |
| struct ieee80211_txq_params txq_params; |
| struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; |
| |
| if (!rdev->ops->set_txq_params) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| if (!netdev) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| if (!netif_running(netdev)) { |
| result = -ENETDOWN; |
| goto out; |
| } |
| |
| nla_for_each_nested(nl_txq_params, |
| info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], |
| rem_txq_params) { |
| result = nla_parse_nested_deprecated(tb, |
| NL80211_TXQ_ATTR_MAX, |
| nl_txq_params, |
| txq_params_policy, |
| info->extack); |
| if (result) |
| goto out; |
| result = parse_txq_params(tb, &txq_params); |
| if (result) |
| goto out; |
| |
| txq_params.link_id = |
| nl80211_link_id_or_invalid(info->attrs); |
| |
| wdev_lock(netdev->ieee80211_ptr); |
| if (txq_params.link_id >= 0 && |
| !(netdev->ieee80211_ptr->valid_links & |
| BIT(txq_params.link_id))) |
| result = -ENOLINK; |
| else if (txq_params.link_id >= 0 && |
| !netdev->ieee80211_ptr->valid_links) |
| result = -EINVAL; |
| else |
| result = rdev_set_txq_params(rdev, netdev, |
| &txq_params); |
| wdev_unlock(netdev->ieee80211_ptr); |
| if (result) |
| goto out; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| |
| if (wdev) { |
| wdev_lock(wdev); |
| result = __nl80211_set_channel( |
| rdev, |
| nl80211_can_set_dev_channel(wdev) ? netdev : NULL, |
| info, link_id); |
| wdev_unlock(wdev); |
| } else { |
| result = __nl80211_set_channel(rdev, netdev, info, link_id); |
| } |
| |
| if (result) |
| goto out; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
| struct wireless_dev *txp_wdev = wdev; |
| enum nl80211_tx_power_setting type; |
| int idx, mbm = 0; |
| |
| if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
| txp_wdev = NULL; |
| |
| if (!rdev->ops->set_tx_power) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; |
| type = nla_get_u32(info->attrs[idx]); |
| |
| if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && |
| (type != NL80211_TX_POWER_AUTOMATIC)) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| if (type != NL80211_TX_POWER_AUTOMATIC) { |
| idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; |
| mbm = nla_get_u32(info->attrs[idx]); |
| } |
| |
| result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
| if (result) |
| goto out; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
| info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { |
| u32 tx_ant, rx_ant; |
| |
| if ((!rdev->wiphy.available_antennas_tx && |
| !rdev->wiphy.available_antennas_rx) || |
| !rdev->ops->set_antenna) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); |
| rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); |
| |
| /* reject antenna configurations which don't match the |
| * available antenna masks, except for the "all" mask */ |
| if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || |
| (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
| rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; |
| |
| result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
| if (result) |
| goto out; |
| } |
| |
| changed = 0; |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { |
| retry_short = nla_get_u8( |
| info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); |
| |
| changed |= WIPHY_PARAM_RETRY_SHORT; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { |
| retry_long = nla_get_u8( |
| info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); |
| |
| changed |= WIPHY_PARAM_RETRY_LONG; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { |
| frag_threshold = nla_get_u32( |
| info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); |
| if (frag_threshold < 256) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| if (frag_threshold != (u32) -1) { |
| /* |
| * Fragments (apart from the last one) are required to |
| * have even length. Make the fragmentation code |
| * simpler by stripping LSB should someone try to use |
| * odd threshold value. |
| */ |
| frag_threshold &= ~0x1; |
| } |
| changed |= WIPHY_PARAM_FRAG_THRESHOLD; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { |
| rts_threshold = nla_get_u32( |
| info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); |
| changed |= WIPHY_PARAM_RTS_THRESHOLD; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
| if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) { |
| result = -EINVAL; |
| goto out; |
| } |
| |
| coverage_class = nla_get_u8( |
| info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); |
| changed |= WIPHY_PARAM_COVERAGE_CLASS; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) { |
| if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION)) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| changed |= WIPHY_PARAM_DYN_ACK; |
| } |
| |
| if (info->attrs[NL80211_ATTR_TXQ_LIMIT]) { |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_TXQS)) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| txq_limit = nla_get_u32( |
| info->attrs[NL80211_ATTR_TXQ_LIMIT]); |
| changed |= WIPHY_PARAM_TXQ_LIMIT; |
| } |
| |
| if (info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]) { |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_TXQS)) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| txq_memory_limit = nla_get_u32( |
| info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]); |
| changed |= WIPHY_PARAM_TXQ_MEMORY_LIMIT; |
| } |
| |
| if (info->attrs[NL80211_ATTR_TXQ_QUANTUM]) { |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_TXQS)) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| txq_quantum = nla_get_u32( |
| info->attrs[NL80211_ATTR_TXQ_QUANTUM]); |
| changed |= WIPHY_PARAM_TXQ_QUANTUM; |
| } |
| |
| if (changed) { |
| u8 old_retry_short, old_retry_long; |
| u32 old_frag_threshold, old_rts_threshold; |
| u8 old_coverage_class; |
| u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum; |
| |
| if (!rdev->ops->set_wiphy_params) { |
| result = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| old_retry_short = rdev->wiphy.retry_short; |
| old_retry_long = rdev->wiphy.retry_long; |
| old_frag_threshold = rdev->wiphy.frag_threshold; |
| old_rts_threshold = rdev->wiphy.rts_threshold; |
| old_coverage_class = rdev->wiphy.coverage_class; |
| old_txq_limit = rdev->wiphy.txq_limit; |
| old_txq_memory_limit = rdev->wiphy.txq_memory_limit; |
| old_txq_quantum = rdev->wiphy.txq_quantum; |
| |
| if (changed & WIPHY_PARAM_RETRY_SHORT) |
| rdev->wiphy.retry_short = retry_short; |
| if (changed & WIPHY_PARAM_RETRY_LONG) |
| rdev->wiphy.retry_long = retry_long; |
| if (changed & WIPHY_PARAM_FRAG_THRESHOLD) |
| rdev->wiphy.frag_threshold = frag_threshold; |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) |
| rdev->wiphy.rts_threshold = rts_threshold; |
| if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
| rdev->wiphy.coverage_class = coverage_class; |
| if (changed & WIPHY_PARAM_TXQ_LIMIT) |
| rdev->wiphy.txq_limit = txq_limit; |
| if (changed & WIPHY_PARAM_TXQ_MEMORY_LIMIT) |
| rdev->wiphy.txq_memory_limit = txq_memory_limit; |
| if (changed & WIPHY_PARAM_TXQ_QUANTUM) |
| rdev->wiphy.txq_quantum = txq_quantum; |
| |
| result = rdev_set_wiphy_params(rdev, changed); |
| if (result) { |
| rdev->wiphy.retry_short = old_retry_short; |
| rdev->wiphy.retry_long = old_retry_long; |
| rdev->wiphy.frag_threshold = old_frag_threshold; |
| rdev->wiphy.rts_threshold = old_rts_threshold; |
| rdev->wiphy.coverage_class = old_coverage_class; |
| rdev->wiphy.txq_limit = old_txq_limit; |
| rdev->wiphy.txq_memory_limit = old_txq_memory_limit; |
| rdev->wiphy.txq_quantum = old_txq_quantum; |
| goto out; |
| } |
| } |
| |
| result = 0; |
| |
| out: |
| wiphy_unlock(&rdev->wiphy); |
| return result; |
| } |
| |
| static int nl80211_send_chandef(struct sk_buff *msg, |
| const struct cfg80211_chan_def *chandef) |
| { |
| if (WARN_ON(!cfg80211_chandef_valid(chandef))) |
| return -EINVAL; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
| chandef->chan->center_freq)) |
| return -ENOBUFS; |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET, |
| chandef->chan->freq_offset)) |
| return -ENOBUFS; |
| switch (chandef->width) { |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| case NL80211_CHAN_WIDTH_20: |
| case NL80211_CHAN_WIDTH_40: |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| cfg80211_get_chandef_type(chandef))) |
| return -ENOBUFS; |
| break; |
| default: |
| break; |
| } |
| if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) |
| return -ENOBUFS; |
| if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) |
| return -ENOBUFS; |
| if (chandef->center_freq2 && |
| nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) |
| return -ENOBUFS; |
| return 0; |
| } |
| |
| static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
| struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, |
| enum nl80211_commands cmd) |
| { |
| struct net_device *dev = wdev->netdev; |
| void *hdr; |
| |
| WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE && |
| cmd != NL80211_CMD_DEL_INTERFACE && |
| cmd != NL80211_CMD_SET_INTERFACE); |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
| if (!hdr) |
| return -1; |
| |
| if (dev && |
| (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
| nla_put_u32(msg, NL80211_ATTR_GENERATION, |
| rdev->devlist_generation ^ |
| (cfg80211_rdev_list_generation << 2)) || |
| nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr)) |
| goto nla_put_failure; |
| |
| if (rdev->ops->get_channel && !wdev->valid_links) { |
| struct cfg80211_chan_def chandef = {}; |
| int ret; |
| |
| ret = rdev_get_channel(rdev, wdev, 0, &chandef); |
| if (ret == 0 && nl80211_send_chandef(msg, &chandef)) |
| goto nla_put_failure; |
| } |
| |
| if (rdev->ops->get_tx_power) { |
| int dbm, ret; |
| |
| ret = rdev_get_tx_power(rdev, wdev, &dbm); |
| if (ret == 0 && |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL, |
| DBM_TO_MBM(dbm))) |
| goto nla_put_failure; |
| } |
| |
| wdev_lock(wdev); |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| if (wdev->u.ap.ssid_len && |
| nla_put(msg, NL80211_ATTR_SSID, wdev->u.ap.ssid_len, |
| wdev->u.ap.ssid)) |
| goto nla_put_failure_locked; |
| break; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (wdev->u.client.ssid_len && |
| nla_put(msg, NL80211_ATTR_SSID, wdev->u.client.ssid_len, |
| wdev->u.client.ssid)) |
| goto nla_put_failure_locked; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (wdev->u.ibss.ssid_len && |
| nla_put(msg, NL80211_ATTR_SSID, wdev->u.ibss.ssid_len, |
| wdev->u.ibss.ssid)) |
| goto nla_put_failure_locked; |
| break; |
| default: |
| /* nothing */ |
| break; |
| } |
| wdev_unlock(wdev); |
| |
| if (rdev->ops->get_txq_stats) { |
| struct cfg80211_txq_stats txqstats = {}; |
| int ret = rdev_get_txq_stats(rdev, wdev, &txqstats); |
| |
| if (ret == 0 && |
| !nl80211_put_txq_stats(msg, &txqstats, |
| NL80211_ATTR_TXQ_STATS)) |
| goto nla_put_failure; |
| } |
| |
| if (wdev->valid_links) { |
| unsigned int link_id; |
| struct nlattr *links = nla_nest_start(msg, |
| NL80211_ATTR_MLO_LINKS); |
| |
| if (!links) |
| goto nla_put_failure; |
| |
| for_each_valid_link(wdev, link_id) { |
| struct nlattr *link = nla_nest_start(msg, link_id + 1); |
| struct cfg80211_chan_def chandef = {}; |
| int ret; |
| |
| if (!link) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link_id)) |
| goto nla_put_failure; |
| if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, |
| wdev->links[link_id].addr)) |
| goto nla_put_failure; |
| |
| ret = rdev_get_channel(rdev, wdev, link_id, &chandef); |
| if (ret == 0 && nl80211_send_chandef(msg, &chandef)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, link); |
| } |
| |
| nla_nest_end(msg, links); |
| } |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure_locked: |
| wdev_unlock(wdev); |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) |
| { |
| int wp_idx = 0; |
| int if_idx = 0; |
| int wp_start = cb->args[0]; |
| int if_start = cb->args[1]; |
| int filter_wiphy = -1; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| int ret; |
| |
| rtnl_lock(); |
| if (!cb->args[2]) { |
| struct nl80211_dump_wiphy_state state = { |
| .filter_wiphy = -1, |
| }; |
| |
| ret = nl80211_dump_wiphy_parse(skb, cb, &state); |
| if (ret) |
| goto out_unlock; |
| |
| filter_wiphy = state.filter_wiphy; |
| |
| /* |
| * if filtering, set cb->args[2] to +1 since 0 is the default |
| * value needed to determine that parsing is necessary. |
| */ |
| if (filter_wiphy >= 0) |
| cb->args[2] = filter_wiphy + 1; |
| else |
| cb->args[2] = -1; |
| } else if (cb->args[2] > 0) { |
| filter_wiphy = cb->args[2] - 1; |
| } |
| |
| list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
| if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) |
| continue; |
| if (wp_idx < wp_start) { |
| wp_idx++; |
| continue; |
| } |
| |
| if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx) |
| continue; |
| |
| if_idx = 0; |
| |
| list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
| if (if_idx < if_start) { |
| if_idx++; |
| continue; |
| } |
| if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| rdev, wdev, |
| NL80211_CMD_NEW_INTERFACE) < 0) { |
| goto out; |
| } |
| if_idx++; |
| } |
| |
| wp_idx++; |
| } |
| out: |
| cb->args[0] = wp_idx; |
| cb->args[1] = if_idx; |
| |
| ret = skb->len; |
| out_unlock: |
| rtnl_unlock(); |
| |
| return ret; |
| } |
| |
| static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct sk_buff *msg; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
| rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
| [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, |
| [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, |
| [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, |
| [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, |
| [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, |
| [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, |
| }; |
| |
| static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) |
| { |
| struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; |
| int flag; |
| |
| *mntrflags = 0; |
| |
| if (!nla) |
| return -EINVAL; |
| |
| if (nla_parse_nested_deprecated(flags, NL80211_MNTR_FLAG_MAX, nla, mntr_flags_policy, NULL)) |
| return -EINVAL; |
| |
| for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) |
| if (flags[flag]) |
| *mntrflags |= (1<<flag); |
| |
| *mntrflags |= MONITOR_FLAG_CHANGED; |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev, |
| enum nl80211_iftype type, |
| struct genl_info *info, |
| struct vif_params *params) |
| { |
| bool change = false; |
| int err; |
| |
| if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
| if (type != NL80211_IFTYPE_MONITOR) |
| return -EINVAL; |
| |
| err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
| ¶ms->flags); |
| if (err) |
| return err; |
| |
| change = true; |
| } |
| |
| if (params->flags & MONITOR_FLAG_ACTIVE && |
| !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) { |
| const u8 *mumimo_groups; |
| u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER; |
| |
| if (type != NL80211_IFTYPE_MONITOR) |
| return -EINVAL; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag)) |
| return -EOPNOTSUPP; |
| |
| mumimo_groups = |
| nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]); |
| |
| /* bits 0 and 63 are reserved and must be zero */ |
| if ((mumimo_groups[0] & BIT(0)) || |
| (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7))) |
| return -EINVAL; |
| |
| params->vht_mumimo_groups = mumimo_groups; |
| change = true; |
| } |
| |
| if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) { |
| u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER; |
| |
| if (type != NL80211_IFTYPE_MONITOR) |
| return -EINVAL; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag)) |
| return -EOPNOTSUPP; |
| |
| params->vht_mumimo_follow_addr = |
| nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]); |
| change = true; |
| } |
| |
| return change ? 1 : 0; |
| } |
| |
| static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, u8 use_4addr, |
| enum nl80211_iftype iftype) |
| { |
| if (!use_4addr) { |
| if (netdev && netif_is_bridge_port(netdev)) |
| return -EBUSY; |
| return 0; |
| } |
| |
| switch (iftype) { |
| case NL80211_IFTYPE_AP_VLAN: |
| if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) |
| return 0; |
| break; |
| case NL80211_IFTYPE_STATION: |
| if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) |
| return 0; |
| break; |
| default: |
| break; |
| } |
| |
| return -EOPNOTSUPP; |
| } |
| |
| static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct vif_params params; |
| int err; |
| enum nl80211_iftype otype, ntype; |
| struct net_device *dev = info->user_ptr[1]; |
| bool change = false; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| otype = ntype = dev->ieee80211_ptr->iftype; |
| |
| if (info->attrs[NL80211_ATTR_IFTYPE]) { |
| ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
| if (otype != ntype) |
| change = true; |
| } |
| |
| if (info->attrs[NL80211_ATTR_MESH_ID]) { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| if (ntype != NL80211_IFTYPE_MESH_POINT) |
| return -EINVAL; |
| if (netif_running(dev)) |
| return -EBUSY; |
| |
| wdev_lock(wdev); |
| BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != |
| IEEE80211_MAX_MESH_ID_LEN); |
| wdev->u.mesh.id_up_len = |
| nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
| memcpy(wdev->u.mesh.id, |
| nla_data(info->attrs[NL80211_ATTR_MESH_ID]), |
| wdev->u.mesh.id_up_len); |
| wdev_unlock(wdev); |
| } |
| |
| if (info->attrs[NL80211_ATTR_4ADDR]) { |
| params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
| change = true; |
| err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
| if (err) |
| return err; |
| } else { |
| params.use_4addr = -1; |
| } |
| |
| err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms); |
| if (err < 0) |
| return err; |
| if (err > 0) |
| change = true; |
| |
| if (change) |
| err = cfg80211_change_iface(rdev, dev, ntype, ¶ms); |
| else |
| err = 0; |
| |
| if (!err && params.use_4addr != -1) |
| dev->ieee80211_ptr->use_4addr = params.use_4addr; |
| |
| if (change && !err) { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| nl80211_notify_iface(rdev, wdev, NL80211_CMD_SET_INTERFACE); |
| } |
| |
| return err; |
| } |
| |
| static int _nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct vif_params params; |
| struct wireless_dev *wdev; |
| struct sk_buff *msg; |
| int err; |
| enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| if (!info->attrs[NL80211_ATTR_IFNAME]) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_IFTYPE]) |
| type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
| |
| if (!rdev->ops->add_virtual_intf) |
| return -EOPNOTSUPP; |
| |
| if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN || |
| rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) && |
| info->attrs[NL80211_ATTR_MAC]) { |
| nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], |
| ETH_ALEN); |
| if (!is_valid_ether_addr(params.macaddr)) |
| return -EADDRNOTAVAIL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_4ADDR]) { |
| params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
| err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
| if (err) |
| return err; |
| } |
| |
| if (!cfg80211_iftype_allowed(&rdev->wiphy, type, params.use_4addr, 0)) |
| return -EOPNOTSUPP; |
| |
| err = nl80211_parse_mon_options(rdev, type, info, ¶ms); |
| if (err < 0) |
| return err; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| wdev = rdev_add_virtual_intf(rdev, |
| nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
| NET_NAME_USER, type, ¶ms); |
| if (WARN_ON(!wdev)) { |
| nlmsg_free(msg); |
| return -EPROTO; |
| } else if (IS_ERR(wdev)) { |
| nlmsg_free(msg); |
| return PTR_ERR(wdev); |
| } |
| |
| if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
| wdev->owner_nlportid = info->snd_portid; |
| |
| switch (type) { |
| case NL80211_IFTYPE_MESH_POINT: |
| if (!info->attrs[NL80211_ATTR_MESH_ID]) |
| break; |
| wdev_lock(wdev); |
| BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != |
| IEEE80211_MAX_MESH_ID_LEN); |
| wdev->u.mesh.id_up_len = |
| nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
| memcpy(wdev->u.mesh.id, |
| nla_data(info->attrs[NL80211_ATTR_MESH_ID]), |
| wdev->u.mesh.id_up_len); |
| wdev_unlock(wdev); |
| break; |
| case NL80211_IFTYPE_NAN: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| /* |
| * P2P Device and NAN do not have a netdev, so don't go |
| * through the netdev notifier and must be added here |
| */ |
| cfg80211_init_wdev(wdev); |
| cfg80211_register_wdev(rdev, wdev); |
| break; |
| default: |
| break; |
| } |
| |
| if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
| rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int ret; |
| |
| /* to avoid failing a new interface creation due to pending removal */ |
| cfg80211_destroy_ifaces(rdev); |
| |
| wiphy_lock(&rdev->wiphy); |
| ret = _nl80211_new_interface(skb, info); |
| wiphy_unlock(&rdev->wiphy); |
| |
| return ret; |
| } |
| |
| static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| if (!rdev->ops->del_virtual_intf) |
| return -EOPNOTSUPP; |
| |
| /* |
| * We hold RTNL, so this is safe, without RTNL opencount cannot |
| * reach 0, and thus the rdev cannot be deleted. |
| * |
| * We need to do it for the dev_close(), since that will call |
| * the netdev notifiers, and we need to acquire the mutex there |
| * but don't know if we get there from here or from some other |
| * place (e.g. "ip link set ... down"). |
| */ |
| mutex_unlock(&rdev->wiphy.mtx); |
| |
| /* |
| * If we remove a wireless device without a netdev then clear |
| * user_ptr[1] so that nl80211_post_doit won't dereference it |
| * to check if it needs to do dev_put(). Otherwise it crashes |
| * since the wdev has been freed, unlike with a netdev where |
| * we need the dev_put() for the netdev to really be freed. |
| */ |
| if (!wdev->netdev) |
| info->user_ptr[1] = NULL; |
| else |
| dev_close(wdev->netdev); |
| |
| mutex_lock(&rdev->wiphy.mtx); |
| |
| return cfg80211_remove_virtual_intf(rdev, wdev); |
| } |
| |
| static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u16 noack_map; |
| |
| if (!info->attrs[NL80211_ATTR_NOACK_MAP]) |
| return -EINVAL; |
| |
| if (!rdev->ops->set_noack_map) |
| return -EOPNOTSUPP; |
| |
| noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); |
| |
| return rdev_set_noack_map(rdev, dev, noack_map); |
| } |
| |
| static int nl80211_validate_key_link_id(struct genl_info *info, |
| struct wireless_dev *wdev, |
| int link_id, bool pairwise) |
| { |
| if (pairwise) { |
| if (link_id != -1) { |
| GENL_SET_ERR_MSG(info, |
| "link ID not allowed for pairwise key"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| if (wdev->valid_links) { |
| if (link_id == -1) { |
| GENL_SET_ERR_MSG(info, |
| "link ID must for MLO group key"); |
| return -EINVAL; |
| } |
| if (!(wdev->valid_links & BIT(link_id))) { |
| GENL_SET_ERR_MSG(info, "invalid link ID for MLO group key"); |
| return -EINVAL; |
| } |
| } else if (link_id != -1) { |
| GENL_SET_ERR_MSG(info, "link ID not allowed for non-MLO group key"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| struct get_key_cookie { |
| struct sk_buff *msg; |
| int error; |
| int idx; |
| }; |
| |
| static void get_key_callback(void *c, struct key_params *params) |
| { |
| struct nlattr *key; |
| struct get_key_cookie *cookie = c; |
| |
| if ((params->key && |
| nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, |
| params->key_len, params->key)) || |
| (params->seq && |
| nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, |
| params->seq_len, params->seq)) || |
| (params->cipher && |
| nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, |
| params->cipher))) |
| goto nla_put_failure; |
| |
| key = nla_nest_start_noflag(cookie->msg, NL80211_ATTR_KEY); |
| if (!key) |
| goto nla_put_failure; |
| |
| if ((params->key && |
| nla_put(cookie->msg, NL80211_KEY_DATA, |
| params->key_len, params->key)) || |
| (params->seq && |
| nla_put(cookie->msg, NL80211_KEY_SEQ, |
| params->seq_len, params->seq)) || |
| (params->cipher && |
| nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, |
| params->cipher))) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx)) |
| goto nla_put_failure; |
| |
| nla_nest_end(cookie->msg, key); |
| |
| return; |
| nla_put_failure: |
| cookie->error = 1; |
| } |
| |
| static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 key_idx = 0; |
| const u8 *mac_addr = NULL; |
| bool pairwise; |
| struct get_key_cookie cookie = { |
| .error = 0, |
| }; |
| void *hdr; |
| struct sk_buff *msg; |
| bool bigtk_support = false; |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_PROTECTION)) |
| bigtk_support = true; |
| |
| if ((wdev->iftype == NL80211_IFTYPE_STATION || |
| wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) && |
| wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT)) |
| bigtk_support = true; |
| |
| if (info->attrs[NL80211_ATTR_KEY_IDX]) { |
| key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| |
| if (key_idx >= 6 && key_idx <= 7 && !bigtk_support) { |
| GENL_SET_ERR_MSG(info, "BIGTK not supported"); |
| return -EINVAL; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| pairwise = !!mac_addr; |
| if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
| u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); |
| |
| if (kt != NL80211_KEYTYPE_GROUP && |
| kt != NL80211_KEYTYPE_PAIRWISE) |
| return -EINVAL; |
| pairwise = kt == NL80211_KEYTYPE_PAIRWISE; |
| } |
| |
| if (!rdev->ops->get_key) |
| return -EOPNOTSUPP; |
| |
| if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
| return -ENOENT; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_NEW_KEY); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| cookie.msg = msg; |
| cookie.idx = key_idx; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) |
| goto nla_put_failure; |
| if (mac_addr && |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) |
| goto nla_put_failure; |
| |
| err = nl80211_validate_key_link_id(info, wdev, link_id, pairwise); |
| if (err) |
| goto free_msg; |
| |
| err = rdev_get_key(rdev, dev, link_id, key_idx, pairwise, mac_addr, |
| &cookie, get_key_callback); |
| |
| if (err) |
| goto free_msg; |
| |
| if (cookie.error) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| err = -ENOBUFS; |
| free_msg: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct key_parse key; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| err = nl80211_parse_key(info, &key); |
| if (err) |
| return err; |
| |
| if (key.idx < 0) |
| return -EINVAL; |
| |
| /* Only support setting default key and |
| * Extended Key ID action NL80211_KEY_SET_TX. |
| */ |
| if (!key.def && !key.defmgmt && !key.defbeacon && |
| !(key.p.mode == NL80211_KEY_SET_TX)) |
| return -EINVAL; |
| |
| wdev_lock(wdev); |
| |
| if (key.def) { |
| if (!rdev->ops->set_default_key) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = nl80211_key_allowed(wdev); |
| if (err) |
| goto out; |
| |
| err = nl80211_validate_key_link_id(info, wdev, link_id, false); |
| if (err) |
| goto out; |
| |
| err = rdev_set_default_key(rdev, dev, link_id, key.idx, |
| key.def_uni, key.def_multi); |
| |
| if (err) |
| goto out; |
| |
| #ifdef CONFIG_CFG80211_WEXT |
| wdev->wext.default_key = key.idx; |
| #endif |
| } else if (key.defmgmt) { |
| if (key.def_uni || !key.def_multi) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (!rdev->ops->set_default_mgmt_key) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = nl80211_key_allowed(wdev); |
| if (err) |
| goto out; |
| |
| err = nl80211_validate_key_link_id(info, wdev, link_id, false); |
| if (err) |
| goto out; |
| |
| err = rdev_set_default_mgmt_key(rdev, dev, link_id, key.idx); |
| if (err) |
| goto out; |
| |
| #ifdef CONFIG_CFG80211_WEXT |
| wdev->wext.default_mgmt_key = key.idx; |
| #endif |
| } else if (key.defbeacon) { |
| if (key.def_uni || !key.def_multi) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (!rdev->ops->set_default_beacon_key) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = nl80211_key_allowed(wdev); |
| if (err) |
| goto out; |
| |
| err = nl80211_validate_key_link_id(info, wdev, link_id, false); |
| if (err) |
| goto out; |
| |
| err = rdev_set_default_beacon_key(rdev, dev, link_id, key.idx); |
| if (err) |
| goto out; |
| } else if (key.p.mode == NL80211_KEY_SET_TX && |
| wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_EXT_KEY_ID)) { |
| u8 *mac_addr = NULL; |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!mac_addr || key.idx < 0 || key.idx > 1) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| err = nl80211_validate_key_link_id(info, wdev, link_id, true); |
| if (err) |
| goto out; |
| |
| err = rdev_add_key(rdev, dev, link_id, key.idx, |
| NL80211_KEYTYPE_PAIRWISE, |
| mac_addr, &key.p); |
| } else { |
| err = -EINVAL; |
| } |
| out: |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| struct key_parse key; |
| const u8 *mac_addr = NULL; |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| err = nl80211_parse_key(info, &key); |
| if (err) |
| return err; |
| |
| if (!key.p.key) { |
| GENL_SET_ERR_MSG(info, "no key"); |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (key.type == -1) { |
| if (mac_addr) |
| key.type = NL80211_KEYTYPE_PAIRWISE; |
| else |
| key.type = NL80211_KEYTYPE_GROUP; |
| } |
| |
| /* for now */ |
| if (key.type != NL80211_KEYTYPE_PAIRWISE && |
| key.type != NL80211_KEYTYPE_GROUP) { |
| GENL_SET_ERR_MSG(info, "key type not pairwise or group"); |
| return -EINVAL; |
| } |
| |
| if (key.type == NL80211_KEYTYPE_GROUP && |
| info->attrs[NL80211_ATTR_VLAN_ID]) |
| key.p.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]); |
| |
| if (!rdev->ops->add_key) |
| return -EOPNOTSUPP; |
| |
| if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
| key.type == NL80211_KEYTYPE_PAIRWISE, |
| mac_addr)) { |
| GENL_SET_ERR_MSG(info, "key setting validation failed"); |
| return -EINVAL; |
| } |
| |
| wdev_lock(wdev); |
| err = nl80211_key_allowed(wdev); |
| if (err) |
| GENL_SET_ERR_MSG(info, "key not allowed"); |
| |
| if (!err) |
| err = nl80211_validate_key_link_id(info, wdev, link_id, |
| key.type == NL80211_KEYTYPE_PAIRWISE); |
| |
| if (!err) { |
| err = rdev_add_key(rdev, dev, link_id, key.idx, |
| key.type == NL80211_KEYTYPE_PAIRWISE, |
| mac_addr, &key.p); |
| if (err) |
| GENL_SET_ERR_MSG(info, "key addition failed"); |
| } |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 *mac_addr = NULL; |
| struct key_parse key; |
| int link_id = nl80211_link_id_or_invalid(info->attrs); |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| err = nl80211_parse_key(info, &key); |
| if (err) |
| return err; |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (key.type == -1) { |
| if (mac_addr) |
| key.type = NL80211_KEYTYPE_PAIRWISE; |
| else |
| key.type = NL80211_KEYTYPE_GROUP; |
| } |
| |
| /* for now */ |
| if (key.type != NL80211_KEYTYPE_PAIRWISE && |
| key.type != NL80211_KEYTYPE_GROUP) |
| return -EINVAL; |
| |
| if (!cfg80211_valid_key_idx(rdev, key.idx, |
| key.type == NL80211_KEYTYPE_PAIRWISE)) |
| return -EINVAL; |
| |
| if (!rdev->ops->del_key) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(wdev); |
| err = nl80211_key_allowed(wdev); |
| |
| if (key.type == NL80211_KEYTYPE_GROUP && mac_addr && |
| !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
| err = -ENOENT; |
| |
| if (!err) |
| err = nl80211_validate_key_link_id(info, wdev, link_id, |
| key.type == NL80211_KEYTYPE_PAIRWISE); |
| |
| if (!err) |
| err = rdev_del_key(rdev, dev, link_id, key.idx, |
| key.type == NL80211_KEYTYPE_PAIRWISE, |
| mac_addr); |
| |
| #ifdef CONFIG_CFG80211_WEXT |
| if (!err) { |
| if (key.idx == wdev->wext.default_key) |
| wdev->wext.default_key = -1; |
| else if (key.idx == wdev->wext.default_mgmt_key) |
| wdev->wext.default_mgmt_key = -1; |
| } |
| #endif |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| /* This function returns an error or the number of nested attributes */ |
| static int validate_acl_mac_addrs(struct nlattr *nl_attr) |
| { |
| struct nlattr *attr; |
| int n_entries = 0, tmp; |
| |
| nla_for_each_nested(attr, nl_attr, tmp) { |
| if (nla_len(attr) != ETH_ALEN) |
| return -EINVAL; |
| |
| n_entries++; |
| } |
| |
| return n_entries; |
| } |
| |
| /* |
| * This function parses ACL information and allocates memory for ACL data. |
| * On successful return, the calling function is responsible to free the |
| * ACL buffer returned by this function. |
| */ |
| static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, |
| struct genl_info *info) |
| { |
| enum nl80211_acl_policy acl_policy; |
| struct nlattr *attr; |
| struct cfg80211_acl_data *acl; |
| int i = 0, n_entries, tmp; |
| |
| if (!wiphy->max_acl_mac_addrs) |
| return ERR_PTR(-EOPNOTSUPP); |
| |
| if (!info->attrs[NL80211_ATTR_ACL_POLICY]) |
| return ERR_PTR(-EINVAL); |
| |
| acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); |
| if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && |
| acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) |
| return ERR_PTR(-EINVAL); |
| |
| if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) |
| return ERR_PTR(-EINVAL); |
| |
| n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); |
| if (n_entries < 0) |
| return ERR_PTR(n_entries); |
| |
| if (n_entries > wiphy->max_acl_mac_addrs) |
| return ERR_PTR(-ENOTSUPP); |
| |
| acl = kzalloc(struct_size(acl, mac_addrs, n_entries), GFP_KERNEL); |
| if (!acl) |
| return ERR_PTR(-ENOMEM); |
| |
| nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { |
| memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); |
| i++; |
| } |
| |
| acl->n_acl_entries = n_entries; |
| acl->acl_policy = acl_policy; |
| |
| return acl; |
| } |
| |
| static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_acl_data *acl; |
| int err; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| if (!dev->ieee80211_ptr->links[0].ap.beacon_interval) |
| return -EINVAL; |
| |
| acl = parse_acl_data(&rdev->wiphy, info); |
| if (IS_ERR(acl)) |
| return PTR_ERR(acl); |
| |
| err = rdev_set_mac_acl(rdev, dev, acl); |
| |
| kfree(acl); |
| |
| return err; |
| } |
| |
| static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
| u8 *rates, u8 rates_len) |
| { |
| u8 i; |
| u32 mask = 0; |
| |
| for (i = 0; i < rates_len; i++) { |
| int rate = (rates[i] & 0x7f) * 5; |
| int ridx; |
| |
| for (ridx = 0; ridx < sband->n_bitrates; ridx++) { |
| struct ieee80211_rate *srate = |
| &sband->bitrates[ridx]; |
| if (rate == srate->bitrate) { |
| mask |= 1 << ridx; |
| break; |
| } |
| } |
| if (ridx == sband->n_bitrates) |
| return 0; /* rate not found */ |
| } |
| |
| return mask; |
| } |
| |
| static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
| u8 *rates, u8 rates_len, |
| u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) |
| { |
| u8 i; |
| |
| memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); |
| |
| for (i = 0; i < rates_len; i++) { |
| int ridx, rbit; |
| |
| ridx = rates[i] / 8; |
| rbit = BIT(rates[i] % 8); |
| |
| /* check validity */ |
| if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
| return false; |
| |
| /* check availability */ |
| ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN); |
| if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) |
| mcs[ridx] |= rbit; |
| else |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map) |
| { |
| u16 mcs_mask = 0; |
| |
| switch (vht_mcs_map) { |
| case IEEE80211_VHT_MCS_NOT_SUPPORTED: |
| break; |
| case IEEE80211_VHT_MCS_SUPPORT_0_7: |
| mcs_mask = 0x00FF; |
| break; |
| case IEEE80211_VHT_MCS_SUPPORT_0_8: |
| mcs_mask = 0x01FF; |
| break; |
| case IEEE80211_VHT_MCS_SUPPORT_0_9: |
| mcs_mask = 0x03FF; |
| break; |
| default: |
| break; |
| } |
| |
| return mcs_mask; |
| } |
| |
| static void vht_build_mcs_mask(u16 vht_mcs_map, |
| u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) |
| { |
| u8 nss; |
| |
| for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { |
| vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03); |
| vht_mcs_map >>= 2; |
| } |
| } |
| |
| static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, |
| struct nl80211_txrate_vht *txrate, |
| u16 mcs[NL80211_VHT_NSS_MAX]) |
| { |
| u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); |
| u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {}; |
| u8 i; |
| |
| if (!sband->vht_cap.vht_supported) |
| return false; |
| |
| memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX); |
| |
| /* Build vht_mcs_mask from VHT capabilities */ |
| vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask); |
| |
| for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { |
| if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) |
| mcs[i] = txrate->mcs[i]; |
| else |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static u16 he_mcs_map_to_mcs_mask(u8 he_mcs_map) |
| { |
| switch (he_mcs_map) { |
| case IEEE80211_HE_MCS_NOT_SUPPORTED: |
| return 0; |
| case IEEE80211_HE_MCS_SUPPORT_0_7: |
| return 0x00FF; |
| case IEEE80211_HE_MCS_SUPPORT_0_9: |
| return 0x03FF; |
| case IEEE80211_HE_MCS_SUPPORT_0_11: |
| return 0xFFF; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| static void he_build_mcs_mask(u16 he_mcs_map, |
| u16 he_mcs_mask[NL80211_HE_NSS_MAX]) |
| { |
| u8 nss; |
| |
| for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++) { |
| he_mcs_mask[nss] = he_mcs_map_to_mcs_mask(he_mcs_map & 0x03); |
| he_mcs_map >>= 2; |
| } |
| } |
| |
| static u16 he_get_txmcsmap(struct genl_info *info, unsigned int link_id, |
| const struct ieee80211_sta_he_cap *he_cap) |
| { |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_chan_def *chandef; |
| __le16 tx_mcs; |
| |
| chandef = wdev_chandef(wdev, link_id); |
| if (!chandef) { |
| /* |
| * This is probably broken, but we never maintained |
| * a chandef in these cases, so it always was. |
| */ |
| return le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80); |
| } |
| |
| switch (chandef->width) { |
| case NL80211_CHAN_WIDTH_80P80: |
| tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_80p80; |
| break; |
| case NL80211_CHAN_WIDTH_160: |
| tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_160; |
| break; |
| default: |
| tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_80; |
| break; |
| } |
| |
| return le16_to_cpu(tx_mcs); |
| } |
| |
| static bool he_set_mcs_mask(struct genl_info *info, |
| struct wireless_dev *wdev, |
| struct ieee80211_supported_band *sband, |
| struct nl80211_txrate_he *txrate, |
| u16 mcs[NL80211_HE_NSS_MAX], |
| unsigned int link_id) |
| { |
| const struct ieee80211_sta_he_cap *he_cap; |
| u16 tx_mcs_mask[NL80211_HE_NSS_MAX] = {}; |
| u16 tx_mcs_map = 0; |
| u8 i; |
| |
| he_cap = ieee80211_get_he_iftype_cap(sband, wdev->iftype); |
| if (!he_cap) |
| return false; |
| |
| memset(mcs, 0, sizeof(u16) * NL80211_HE_NSS_MAX); |
| |
| tx_mcs_map = he_get_txmcsmap(info, link_id, he_cap); |
| |
| /* Build he_mcs_mask from HE capabilities */ |
| he_build_mcs_mask(tx_mcs_map, tx_mcs_mask); |
| |
| for (i = 0; i < NL80211_HE_NSS_MAX; i++) { |
| if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) |
| mcs[i] = txrate->mcs[i]; |
| else |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, |
| struct nlattr *attrs[], |
| enum nl80211_attrs attr, |
| struct cfg80211_bitrate_mask *mask, |
| struct net_device *dev, |
| bool default_all_enabled, |
| unsigned int link_id) |
| { |
| struct nlattr *tb[NL80211_TXRATE_MAX + 1]; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| int rem, i; |
| struct nlattr *tx_rates; |
| struct ieee80211_supported_band *sband; |
| u16 vht_tx_mcs_map, he_tx_mcs_map; |
| |
| memset(mask, 0, sizeof(*mask)); |
| /* Default to all rates enabled */ |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { |
| const struct ieee80211_sta_he_cap *he_cap; |
| |
| if (!default_all_enabled) |
| break; |
| |
| sband = rdev->wiphy.bands[i]; |
| |
| if (!sband) |
| continue; |
| |
| mask->control[i].legacy = (1 << sband->n_bitrates) - 1; |
| memcpy(mask->control[i].ht_mcs, |
| sband->ht_cap.mcs.rx_mask, |
| sizeof(mask->control[i].ht_mcs)); |
| |
| if (sband->vht_cap.vht_supported) { |
| vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); |
| vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs); |
| } |
| |
| he_cap = ieee80211_get_he_iftype_cap(sband, wdev->iftype); |
| if (!he_cap) |
| continue; |
| |
| he_tx_mcs_map = he_get_txmcsmap(info, link_id, he_cap); |
| he_build_mcs_mask(he_tx_mcs_map, mask->control[i].he_mcs); |
| |
| mask->control[i].he_gi = 0xFF; |
| mask->control[i].he_ltf = 0xFF; |
| } |
| |
| /* if no rates are given set it back to the defaults */ |
| if (!attrs[attr]) |
| goto out; |
| |
| /* The nested attribute uses enum nl80211_band as the index. This maps |
| * directly to the enum nl80211_band values used in cfg80211. |
| */ |
| BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
| nla_for_each_nested(tx_rates, attrs[attr], rem) { |
| enum nl80211_band band = nla_type(tx_rates); |
| int err; |
| |
| if (band < 0 || band >= NUM_NL80211_BANDS) |
| return -EINVAL; |
| sband = rdev->wiphy.bands[band]; |
| if (sband == NULL) |
| return -EINVAL; |
| err = nla_parse_nested_deprecated(tb, NL80211_TXRATE_MAX, |
| tx_rates, |
| nl80211_txattr_policy, |
| info->extack); |
| if (err) |
| return err; |
| if (tb[NL80211_TXRATE_LEGACY]) { |
| mask->control[band].legacy = rateset_to_mask( |
| sband, |
| nla_data(tb[NL80211_TXRATE_LEGACY]), |
| nla_len(tb[NL80211_TXRATE_LEGACY])); |
| if ((mask->control[band].legacy == 0) && |
| nla_len(tb[NL80211_TXRATE_LEGACY])) |
| return -EINVAL; |
| } |
| if (tb[NL80211_TXRATE_HT]) { |
| if (!ht_rateset_to_mask( |
| sband, |
| nla_data(tb[NL80211_TXRATE_HT]), |
| nla_len(tb[NL80211_TXRATE_HT]), |
| mask->control[band].ht_mcs)) |
| return -EINVAL; |
| } |
| |
| if (tb[NL80211_TXRATE_VHT]) { |
| if (!vht_set_mcs_mask( |
| sband, |
| nla_data(tb[NL80211_TXRATE_VHT]), |
| mask->control[band].vht_mcs)) |
| return -EINVAL; |
| } |
| |
| if (tb[NL80211_TXRATE_GI]) { |
| mask->control[band].gi = |
| nla_get_u8(tb[NL80211_TXRATE_GI]); |
| if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI) |
| return -EINVAL; |
| } |
| if (tb[NL80211_TXRATE_HE] && |
| !he_set_mcs_mask(info, wdev, sband, |
| nla_data(tb[NL80211_TXRATE_HE]), |
| mask->control[band].he_mcs, |
| link_id)) |
| return -EINVAL; |
| |
| if (tb[NL80211_TXRATE_HE_GI]) |
| mask->control[band].he_gi = |
| nla_get_u8(tb[NL80211_TXRATE_HE_GI]); |
| if (tb[NL80211_TXRATE_HE_LTF]) |
| mask->control[band].he_ltf = |
| nla_get_u8(tb[NL80211_TXRATE_HE_LTF]); |
| |
| if (mask->control[band].legacy == 0) { |
| /* don't allow empty legacy rates if HT, VHT or HE |
| * are not even supported. |
| */ |
| if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported || |
| rdev->wiphy.bands[band]->vht_cap.vht_supported || |
| ieee80211_get_he_iftype_cap(sband, wdev->iftype))) |
| return -EINVAL; |
| |
| for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) |
| if (mask->control[band].ht_mcs[i]) |
| goto out; |
| |
| for (i = 0; i < NL80211_VHT_NSS_MAX; i++) |
| if (mask->control[band].vht_mcs[i]) |
| goto out; |
| |
| for (i = 0; i < NL80211_HE_NSS_MAX; i++) |
| if (mask->control[band].he_mcs[i]) |
| goto out; |
| |
| /* legacy and mcs rates may not be both empty */ |
| return -EINVAL; |
| } |
| } |
| |
| out: |
| return 0; |
| } |
| |
| static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev, |
| enum nl80211_band band, |
| struct cfg80211_bitrate_mask *beacon_rate) |
| { |
| u32 count_ht, count_vht, count_he, i; |
| u32 rate = beacon_rate->control[band].legacy; |
| |
| /* Allow only one rate */ |
| if (hweight32(rate) > 1) |
| return -EINVAL; |
| |
| count_ht = 0; |
| for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { |
| if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) { |
| return -EINVAL; |
| } else if (beacon_rate->control[band].ht_mcs[i]) { |
| count_ht++; |
| if (count_ht > 1) |
| return -EINVAL; |
| } |
| if (count_ht && rate) |
| return -EINVAL; |
| } |
| |
| count_vht = 0; |
| for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { |
| if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) { |
| return -EINVAL; |
| } else if (beacon_rate->control[band].vht_mcs[i]) { |
| count_vht++; |
| if (count_vht > 1) |
| return -EINVAL; |
| } |
| if (count_vht && rate) |
| return -EINVAL; |
| } |
| |
| count_he = 0; |
| for (i = 0; i < NL80211_HE_NSS_MAX; i++) { |
| if (hweight16(beacon_rate->control[band].he_mcs[i]) > 1) { |
| return -EINVAL; |
| } else if (beacon_rate->control[band].he_mcs[i]) { |
| count_he++; |
| if (count_he > 1) |
| return -EINVAL; |
| } |
| if (count_he && rate) |
| return -EINVAL; |
| } |
| |
| if ((count_ht && count_vht && count_he) || |
| (!rate && !count_ht && !count_vht && !count_he)) |
| return -EINVAL; |
| |
| if (rate && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) |
| return -EINVAL; |
| if (count_ht && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_HT)) |
| return -EINVAL; |
| if (count_vht && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_VHT)) |
| return -EINVAL; |
| if (count_he && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_HE)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_mbssid_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct nlattr *attrs, |
| struct cfg80211_mbssid_config *config, |
| u8 num_elems) |
| { |
| struct nlattr *tb[NL80211_MBSSID_CONFIG_ATTR_MAX + 1]; |
| |
| if (!wiphy->mbssid_max_interfaces) |
| return -EOPNOTSUPP; |
| |
| if (nla_parse_nested(tb, NL80211_MBSSID_CONFIG_ATTR_MAX, attrs, NULL, |
| NULL) || |
| !tb[NL80211_MBSSID_CONFIG_ATTR_INDEX]) |
| return -EINVAL; |
| |
| config->ema = nla_get_flag(tb[NL80211_MBSSID_CONFIG_ATTR_EMA]); |
| if (config->ema) { |
| if (!wiphy->ema_max_profile_periodicity) |
| return -EOPNOTSUPP; |
| |
| if (num_elems > wiphy->ema_max_profile_periodicity) |
| return -EINVAL; |
| } |
| |
| config->index = nla_get_u8(tb[NL80211_MBSSID_CONFIG_ATTR_INDEX]); |
| if (config->index >= wiphy->mbssid_max_interfaces || |
| (!config->index && !num_elems)) |
| return -EINVAL; |
| |
| if (tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]) { |
| u32 tx_ifindex = |
| nla_get_u32(tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]); |
| |
| if ((!config->index && tx_ifindex != dev->ifindex) || |
| (config->index && tx_ifindex == dev->ifindex)) |
| return -EINVAL; |
| |
| if (tx_ifindex != dev->ifindex) { |
| struct net_device *tx_netdev = |
| dev_get_by_index(wiphy_net(wiphy), tx_ifindex); |
| |
| if (!tx_netdev || !tx_netdev->ieee80211_ptr || |
| tx_netdev->ieee80211_ptr->wiphy != wiphy || |
| tx_netdev->ieee80211_ptr->iftype != |
| NL80211_IFTYPE_AP) { |
| dev_put(tx_netdev); |
| return -EINVAL; |
| } |
| |
| config->tx_wdev = tx_netdev->ieee80211_ptr; |
| } else { |
| config->tx_wdev = dev->ieee80211_ptr; |
| } |
| } else if (!config->index) { |
| config->tx_wdev = dev->ieee80211_ptr; |
| } else { |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static struct cfg80211_mbssid_elems * |
| nl80211_parse_mbssid_elems(struct wiphy *wiphy, struct nlattr *attrs) |
| { |
| struct nlattr *nl_elems; |
| struct cfg80211_mbssid_elems *elems; |
| int rem_elems; |
| u8 i = 0, num_elems = 0; |
| |
| if (!wiphy->mbssid_max_interfaces) |
| return ERR_PTR(-EINVAL); |
| |
| nla_for_each_nested(nl_elems, attrs, rem_elems) { |
| if (num_elems >= 255) |
| return ERR_PTR(-EINVAL); |
| num_elems++; |
| } |
| |
| elems = kzalloc(struct_size(elems, elem, num_elems), GFP_KERNEL); |
| if (!elems) |
| return ERR_PTR(-ENOMEM); |
| |
| nla_for_each_nested(nl_elems, attrs, rem_elems) { |
| elems->elem[i].data = nla_data(nl_elems); |
| elems->elem[i].len = nla_len(nl_elems); |
| i++; |
| } |
| elems->cnt = num_elems; |
| return elems; |
| } |
| |
| static int nl80211_parse_he_bss_color(struct nlattr *attrs, |
| struct cfg80211_he_bss_color *he_bss_color) |
| { |
| struct nlattr *tb[NL80211_HE_BSS_COLOR_ATTR_MAX + 1]; |
| int err; |
| |
| err = nla_parse_nested(tb, NL80211_HE_BSS_COLOR_ATTR_MAX, attrs, |
| he_bss_color_policy, NULL); |
| if (err) |
| return err; |
| |
| if (!tb[NL80211_HE_BSS_COLOR_ATTR_COLOR]) |
| return -EINVAL; |
| |
| he_bss_color->color = |
| nla_get_u8(tb[NL80211_HE_BSS_COLOR_ATTR_COLOR]); |
| he_bss_color->enabled = |
| !nla_get_flag(tb[NL80211_HE_BSS_COLOR_ATTR_DISABLED]); |
| he_bss_color->partial = |
| nla_get_flag(tb[NL80211_HE_BSS_COLOR_ATTR_PARTIAL]); |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev, |
| struct nlattr *attrs[], |
| struct cfg80211_beacon_data *bcn) |
| { |
| bool haveinfo = false; |
| int err; |
| |
| memset(bcn, 0, sizeof(*bcn)); |
| |
| bcn->link_id = nl80211_link_id(attrs); |
| |
| if (attrs[NL80211_ATTR_BEACON_HEAD]) { |
| bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); |
| bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); |
| if (!bcn->head_len) |
| return -EINVAL; |
| haveinfo = true; |
| } |
| |
| if (attrs[NL80211_ATTR_BEACON_TAIL]) { |
| bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); |
| bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); |
| haveinfo = true; |
| } |
| |
| if (!haveinfo) |
| return -EINVAL; |
| |
| if (attrs[NL80211_ATTR_IE]) { |
| bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); |
| bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); |
| } |
| |
| if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { |
| bcn->proberesp_ies = |
| nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
| bcn->proberesp_ies_len = |
| nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
| } |
| |
| if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { |
| bcn->assocresp_ies = |
| nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
| bcn->assocresp_ies_len = |
| nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
| } |
| |
| if (attrs[NL80211_ATTR_PROBE_RESP]) { |
| bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); |
| bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); |
| } |
| |
| if (attrs[NL80211_ATTR_FTM_RESPONDER]) { |
| struct nlattr *tb[NL80211_FTM_RESP_ATTR_MAX + 1]; |
| |
| err = nla_parse_nested_deprecated(tb, |
| NL80211_FTM_RESP_ATTR_MAX, |
| attrs[NL80211_ATTR_FTM_RESPONDER], |
| NULL, NULL); |
| if (err) |
| return err; |
| |
| if (tb[NL80211_FTM_RESP_ATTR_ENABLED] && |
| wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) |
| bcn->ftm_responder = 1; |
| else |
| return -EOPNOTSUPP; |
| |
| if (tb[NL80211_FTM_RESP_ATTR_LCI]) { |
| bcn->lci = nla_data(tb[NL80211_FTM_RESP_ATTR_LCI]); |
| bcn->lci_len = nla_len(tb[NL80211_FTM_RESP_ATTR_LCI]); |
| } |
| |
| if (tb[NL80211_FTM_RESP_ATTR_CIVICLOC]) { |
| bcn->civicloc = nla_data(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]); |
| bcn->civicloc_len = nla_len(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]); |
| } |
| } else { |
| bcn->ftm_responder = -1; |
| } |
| |
| if (attrs[NL80211_ATTR_HE_BSS_COLOR]) { |
| err = nl80211_parse_he_bss_color(attrs[NL80211_ATTR_HE_BSS_COLOR], |
| &bcn->he_bss_color); |
| if (err) |
| return err; |
| bcn->he_bss_color_valid = true; |
| } |
| |
| if (attrs[NL80211_ATTR_MBSSID_ELEMS]) { |
| struct cfg80211_mbssid_elems *mbssid = |
| nl80211_parse_mbssid_elems(&rdev->wiphy, |
| attrs[NL80211_ATTR_MBSSID_ELEMS]); |
| |
| if (IS_ERR(mbssid)) |
| return PTR_ERR(mbssid); |
| |
| bcn->mbssid_ies = mbssid; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_he_obss_pd(struct nlattr *attrs, |
| struct ieee80211_he_obss_pd *he_obss_pd) |
| { |
| struct nlattr *tb[NL80211_HE_OBSS_PD_ATTR_MAX + 1]; |
| int err; |
| |
| err = nla_parse_nested(tb, NL80211_HE_OBSS_PD_ATTR_MAX, attrs, |
| he_obss_pd_policy, NULL); |
| if (err) |
| return err; |
| |
| if (!tb[NL80211_HE_OBSS_PD_ATTR_SR_CTRL]) |
| return -EINVAL; |
| |
| he_obss_pd->sr_ctrl = nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_SR_CTRL]); |
| |
| if (tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET]) |
| he_obss_pd->min_offset = |
| nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET]); |
| if (tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET]) |
| he_obss_pd->max_offset = |
| nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET]); |
| if (tb[NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET]) |
| he_obss_pd->non_srg_max_offset = |
| nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET]); |
| |
| if (he_obss_pd->min_offset > he_obss_pd->max_offset) |
| return -EINVAL; |
| |
| if (tb[NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP]) |
| memcpy(he_obss_pd->bss_color_bitmap, |
| nla_data(tb[NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP]), |
| sizeof(he_obss_pd->bss_color_bitmap)); |
| |
| if (tb[NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP]) |
| memcpy(he_obss_pd->partial_bssid_bitmap, |
| nla_data(tb[NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP]), |
| sizeof(he_obss_pd->partial_bssid_bitmap)); |
| |
| he_obss_pd->enable = true; |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_fils_discovery(struct cfg80211_registered_device *rdev, |
| struct nlattr *attrs, |
| struct cfg80211_ap_settings *params) |
| { |
| struct nlattr *tb[NL80211_FILS_DISCOVERY_ATTR_MAX + 1]; |
| int ret; |
| struct cfg80211_fils_discovery *fd = ¶ms->fils_discovery; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_FILS_DISCOVERY)) |
| return -EINVAL; |
| |
| ret = nla_parse_nested(tb, NL80211_FILS_DISCOVERY_ATTR_MAX, attrs, |
| NULL, NULL); |
| if (ret) |
| return ret; |
| |
| if (!tb[NL80211_FILS_DISCOVERY_ATTR_INT_MIN] || |
| !tb[NL80211_FILS_DISCOVERY_ATTR_INT_MAX] || |
| !tb[NL80211_FILS_DISCOVERY_ATTR_TMPL]) |
| return -EINVAL; |
| |
| fd->tmpl_len = nla_len(tb[NL80211_FILS_DISCOVERY_ATTR_TMPL]); |
| fd->tmpl = nla_data(tb[NL80211_FILS_DISCOVERY_ATTR_TMPL]); |
| fd->min_interval = nla_get_u32(tb[NL80211_FILS_DISCOVERY_ATTR_INT_MIN]); |
| fd->max_interval = nla_get_u32(tb[NL80211_FILS_DISCOVERY_ATTR_INT_MAX]); |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_parse_unsol_bcast_probe_resp(struct cfg80211_registered_device *rdev, |
| struct nlattr *attrs, |
| struct cfg80211_ap_settings *params) |
| { |
| struct nlattr *tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX + 1]; |
| int ret; |
| struct cfg80211_unsol_bcast_probe_resp *presp = |
| ¶ms->unsol_bcast_probe_resp; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_UNSOL_BCAST_PROBE_RESP)) |
| return -EINVAL; |
| |
| ret = nla_parse_nested(tb, NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX, |
| attrs, NULL, NULL); |
| if (ret) |
| return ret; |
| |
| if (!tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT] || |
| !tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL]) |
| return -EINVAL; |
| |
| presp->tmpl = nla_data(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL]); |
| presp->tmpl_len = nla_len(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL]); |
| presp->interval = nla_get_u32(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT]); |
| return 0; |
| } |
| |
| static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params, |
| const struct element *rates) |
| { |
| int i; |
| |
| if (!rates) |
| return; |
| |
| for (i = 0; i < rates->datalen; i++) { |
| if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY) |
| params->ht_required = true; |
| if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY) |
| params->vht_required = true; |
| if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_HE_PHY) |
| params->he_required = true; |
| if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_SAE_H2E) |
| params->sae_h2e_required = true; |
| } |
| } |
| |
| /* |
| * Since the nl80211 API didn't include, from the beginning, attributes about |
| * HT/VHT requirements/capabilities, we parse them out of the IEs for the |
| * benefit of drivers that rebuild IEs in the firmware. |
| */ |
| static int nl80211_calculate_ap_params(struct cfg80211_ap_settings *params) |
| { |
| const struct cfg80211_beacon_data *bcn = ¶ms->beacon; |
| size_t ies_len = bcn->tail_len; |
| const u8 *ies = bcn->tail; |
| const struct element *rates; |
| const struct element *cap; |
| |
| rates = cfg80211_find_elem(WLAN_EID_SUPP_RATES, ies, ies_len); |
| nl80211_check_ap_rate_selectors(params, rates); |
| |
| rates = cfg80211_find_elem(WLAN_EID_EXT_SUPP_RATES, ies, ies_len); |
| nl80211_check_ap_rate_selectors(params, rates); |
| |
| cap = cfg80211_find_elem(WLAN_EID_HT_CAPABILITY, ies, ies_len); |
| if (cap && cap->datalen >= sizeof(*params->ht_cap)) |
| params->ht_cap = (void *)cap->data; |
| cap = cfg80211_find_elem(WLAN_EID_VHT_CAPABILITY, ies, ies_len); |
| if (cap && cap->datalen >= sizeof(*params->vht_cap)) |
| params->vht_cap = (void *)cap->data; |
| cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, ies, ies_len); |
| if (cap && cap->datalen >= sizeof(*params->he_cap) + 1) |
| params->he_cap = (void *)(cap->data + 1); |
| cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION, ies, ies_len); |
| if (cap && cap->datalen >= sizeof(*params->he_oper) + 1) |
| params->he_oper = (void *)(cap->data + 1); |
| cap = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_CAPABILITY, ies, ies_len); |
| if (cap) { |
| if (!cap->datalen) |
| return -EINVAL; |
| params->eht_cap = (void *)(cap->data + 1); |
| if (!ieee80211_eht_capa_size_ok((const u8 *)params->he_cap, |
| (const u8 *)params->eht_cap, |
| cap->datalen - 1, true)) |
| return -EINVAL; |
| } |
| cap = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_OPERATION, ies, ies_len); |
| if (cap) { |
| if (!cap->datalen) |
| return -EINVAL; |
| params->eht_oper = (void *)(cap->data + 1); |
| if (!ieee80211_eht_oper_size_ok((const u8 *)params->eht_oper, |
| cap->datalen - 1)) |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
| struct cfg80211_ap_settings *params) |
| { |
| struct wireless_dev *wdev; |
| |
| list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
| if (wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO) |
| continue; |
| |
| if (!wdev->u.ap.preset_chandef.chan) |
| continue; |
| |
| params->chandef = wdev->u.ap.preset_chandef; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
| enum nl80211_auth_type auth_type, |
| enum nl80211_commands cmd) |
| { |
| if (auth_type > NL80211_AUTHTYPE_MAX) |
| return false; |
| |
| switch (cmd) { |
| case NL80211_CMD_AUTHENTICATE: |
| if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && |
| auth_type == NL80211_AUTHTYPE_SAE) |
| return false; |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_FILS_STA) && |
| (auth_type == NL80211_AUTHTYPE_FILS_SK || |
| auth_type == NL80211_AUTHTYPE_FILS_SK_PFS || |
| auth_type == NL80211_AUTHTYPE_FILS_PK)) |
| return false; |
| return true; |
| case NL80211_CMD_CONNECT: |
| if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_SAE_OFFLOAD) && |
| auth_type == NL80211_AUTHTYPE_SAE) |
| return false; |
| |
| /* FILS with SK PFS or PK not supported yet */ |
| if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS || |
| auth_type == NL80211_AUTHTYPE_FILS_PK) |
| return false; |
| if (!wiphy_ext_feature_isset( |
| &rdev->wiphy, |
| NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) && |
| auth_type == NL80211_AUTHTYPE_FILS_SK) |
| return false; |
| return true; |
| case NL80211_CMD_START_AP: |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_SAE_OFFLOAD_AP) && |
| auth_type == NL80211_AUTHTYPE_SAE) |
| return false; |
| /* FILS not supported yet */ |
| if (auth_type == NL80211_AUTHTYPE_FILS_SK || |
| auth_type == NL80211_AUTHTYPE_FILS_SK_PFS || |
| auth_type == NL80211_AUTHTYPE_FILS_PK) |
| return false; |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_ap_settings *params; |
| int err; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->start_ap) |
| return -EOPNOTSUPP; |
| |
| if (wdev->links[link_id].ap.beacon_interval) |
| return -EALREADY; |
| |
| /* these are required for START_AP */ |
| if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || |
| !info->attrs[NL80211_ATTR_DTIM_PERIOD] || |
| !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
| return -EINVAL; |
| |
| params = kzalloc(sizeof(*params), GFP_KERNEL); |
| if (!params) |
| return -ENOMEM; |
| |
| err = nl80211_parse_beacon(rdev, info->attrs, ¶ms->beacon); |
| if (err) |
| goto out; |
| |
| params->beacon_interval = |
| nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
| params->dtim_period = |
| nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); |
| |
| err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype, |
| params->beacon_interval); |
| if (err) |
| goto out; |
| |
| /* |
| * In theory, some of these attributes should be required here |
| * but since they were not used when the command was originally |
| * added, keep them optional for old user space programs to let |
| * them continue to work with drivers that do not need the |
| * additional information -- drivers must check! |
| */ |
| if (info->attrs[NL80211_ATTR_SSID]) { |
| params->ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| params->ssid_len = |
| nla_len(info->attrs[NL80211_ATTR_SSID]); |
| if (params->ssid_len == 0) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (wdev->u.ap.ssid_len && |
| (wdev->u.ap.ssid_len != params->ssid_len || |
| memcmp(wdev->u.ap.ssid, params->ssid, params->ssid_len))) { |
| /* require identical SSID for MLO */ |
| err = -EINVAL; |
| goto out; |
| } |
| } else if (wdev->valid_links) { |
| /* require SSID for MLO */ |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) |
| params->hidden_ssid = nla_get_u32( |
| info->attrs[NL80211_ATTR_HIDDEN_SSID]); |
| |
| params->privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
| |
| if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { |
| params->auth_type = nla_get_u32( |
| info->attrs[NL80211_ATTR_AUTH_TYPE]); |
| if (!nl80211_valid_auth_type(rdev, params->auth_type, |
| NL80211_CMD_START_AP)) { |
| err = -EINVAL; |
| goto out; |
| } |
| } else |
| params->auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
| |
| err = nl80211_crypto_settings(rdev, info, ¶ms->crypto, |
| NL80211_MAX_NR_CIPHER_SUITES); |
| if (err) |
| goto out; |
| |
| if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
| if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| params->inactivity_timeout = nla_get_u16( |
| info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
| err = -EINVAL; |
| goto out; |
| } |
| params->p2p_ctwindow = |
| nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); |
| if (params->p2p_ctwindow != 0 && |
| !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) { |
| err = -EINVAL; |
| goto out; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { |
| u8 tmp; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
| err = -EINVAL; |
| goto out; |
| } |
| tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); |
| params->p2p_opp_ps = tmp; |
| if (params->p2p_opp_ps != 0 && |
| !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) { |
| err = -EINVAL; |
| goto out; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
| err = nl80211_parse_chandef(rdev, info, ¶ms->chandef); |
| if (err) |
| goto out; |
| } else if (wdev->valid_links) { |
| /* with MLD need to specify the channel configuration */ |
| err = -EINVAL; |
| goto out; |
| } else if (wdev->u.ap.preset_chandef.chan) { |
| params->chandef = wdev->u.ap.preset_chandef; |
| } else if (!nl80211_get_ap_channel(rdev, params)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (info->attrs[NL80211_ATTR_PUNCT_BITMAP]) { |
| err = nl80211_parse_punct_bitmap(rdev, info, |
| ¶ms->chandef, |
| ¶ms->punct_bitmap); |
| if (err) |
| goto out; |
| } |
| |
| if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms->chandef, |
| wdev->iftype)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| wdev_lock(wdev); |
| |
| if (info->attrs[NL80211_ATTR_TX_RATES]) { |
| err = nl80211_parse_tx_bitrate_mask(info, info->attrs, |
| NL80211_ATTR_TX_RATES, |
| ¶ms->beacon_rate, |
| dev, false, link_id); |
| if (err) |
| goto out_unlock; |
| |
| err = validate_beacon_tx_rate(rdev, params->chandef.chan->band, |
| ¶ms->beacon_rate); |
| if (err) |
| goto out_unlock; |
| } |
| |
| if (info->attrs[NL80211_ATTR_SMPS_MODE]) { |
| params->smps_mode = |
| nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]); |
| switch (params->smps_mode) { |
| case NL80211_SMPS_OFF: |
| break; |
| case NL80211_SMPS_STATIC: |
| if (!(rdev->wiphy.features & |
| NL80211_FEATURE_STATIC_SMPS)) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| break; |
| case NL80211_SMPS_DYNAMIC: |
| if (!(rdev->wiphy.features & |
| NL80211_FEATURE_DYNAMIC_SMPS)) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| break; |
| default: |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| } else { |
| params->smps_mode = NL80211_SMPS_OFF; |
| } |
| |
| params->pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]); |
| if (params->pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) { |
| err = -EOPNOTSUPP; |
| goto out_unlock; |
| } |
| |
| if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
| params->acl = parse_acl_data(&rdev->wiphy, info); |
| if (IS_ERR(params->acl)) { |
| err = PTR_ERR(params->acl); |
| params->acl = NULL; |
| goto out_unlock; |
| } |
| } |
| |
| params->twt_responder = |
| nla_get_flag(info->attrs[NL80211_ATTR_TWT_RESPONDER]); |
| |
| if (info->attrs[NL80211_ATTR_HE_OBSS_PD]) { |
| err = nl80211_parse_he_obss_pd( |
| info->attrs[NL80211_ATTR_HE_OBSS_PD], |
| ¶ms->he_obss_pd); |
| if (err) |
| goto out_unlock; |
| } |
| |
| if (info->attrs[NL80211_ATTR_FILS_DISCOVERY]) { |
| err = nl80211_parse_fils_discovery(rdev, |
| info->attrs[NL80211_ATTR_FILS_DISCOVERY], |
| params); |
| if (err) |
| goto out_unlock; |
| } |
| |
| if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) { |
| err = nl80211_parse_unsol_bcast_probe_resp( |
| rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP], |
| params); |
| if (err) |
| goto out_unlock; |
| } |
| |
| if (info->attrs[NL80211_ATTR_MBSSID_CONFIG]) { |
| err = nl80211_parse_mbssid_config(&rdev->wiphy, dev, |
| info->attrs[NL80211_ATTR_MBSSID_CONFIG], |
| ¶ms->mbssid_config, |
| params->beacon.mbssid_ies ? |
| params->beacon.mbssid_ies->cnt : |
| 0); |
| if (err) |
| goto out_unlock; |
| } |
| |
| err = nl80211_calculate_ap_params(params); |
| if (err) |
| goto out_unlock; |
| |
| if (info->attrs[NL80211_ATTR_AP_SETTINGS_FLAGS]) |
| params->flags = nla_get_u32( |
| info->attrs[NL80211_ATTR_AP_SETTINGS_FLAGS]); |
| else if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT]) |
| params->flags |= NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT; |
| |
| if (wdev->conn_owner_nlportid && |
| info->attrs[NL80211_ATTR_SOCKET_OWNER] && |
| wdev->conn_owner_nlportid != info->snd_portid) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| |
| /* FIXME: validate MLO/link-id against driver capabilities */ |
| |
| err = rdev_start_ap(rdev, dev, params); |
| if (!err) { |
| wdev->links[link_id].ap.beacon_interval = params->beacon_interval; |
| wdev->links[link_id].ap.chandef = params->chandef; |
| wdev->u.ap.ssid_len = params->ssid_len; |
| memcpy(wdev->u.ap.ssid, params->ssid, |
| params->ssid_len); |
| |
| if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
| wdev->conn_owner_nlportid = info->snd_portid; |
| } |
| out_unlock: |
| wdev_unlock(wdev); |
| out: |
| kfree(params->acl); |
| kfree(params->beacon.mbssid_ies); |
| if (params->mbssid_config.tx_wdev && |
| params->mbssid_config.tx_wdev->netdev && |
| params->mbssid_config.tx_wdev->netdev != dev) |
| dev_put(params->mbssid_config.tx_wdev->netdev); |
| kfree(params); |
| |
| return err; |
| } |
| |
| static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_beacon_data params; |
| int err; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->change_beacon) |
| return -EOPNOTSUPP; |
| |
| if (!wdev->links[link_id].ap.beacon_interval) |
| return -EINVAL; |
| |
| err = nl80211_parse_beacon(rdev, info->attrs, ¶ms); |
| if (err) |
| goto out; |
| |
| wdev_lock(wdev); |
| err = rdev_change_beacon(rdev, dev, ¶ms); |
| wdev_unlock(wdev); |
| |
| out: |
| kfree(params.mbssid_ies); |
| return err; |
| } |
| |
| static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| |
| return cfg80211_stop_ap(rdev, dev, link_id, false); |
| } |
| |
| static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
| [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, |
| [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, |
| [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, |
| [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
| [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
| [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
| }; |
| |
| static int parse_station_flags(struct genl_info *info, |
| enum nl80211_iftype iftype, |
| struct station_parameters *params) |
| { |
| struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; |
| struct nlattr *nla; |
| int flag; |
| |
| /* |
| * Try parsing the new attribute first so userspace |
| * can specify both for older kernels. |
| */ |
| nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; |
| if (nla) { |
| struct nl80211_sta_flag_update *sta_flags; |
| |
| sta_flags = nla_data(nla); |
| params->sta_flags_mask = sta_flags->mask; |
| params->sta_flags_set = sta_flags->set; |
| params->sta_flags_set &= params->sta_flags_mask; |
| if ((params->sta_flags_mask | |
| params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) |
| return -EINVAL; |
| return 0; |
| } |
| |
| /* if present, parse the old attribute */ |
| |
| nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
| if (!nla) |
| return 0; |
| |
| if (nla_parse_nested_deprecated(flags, NL80211_STA_FLAG_MAX, nla, sta_flags_policy, info->extack)) |
| return -EINVAL; |
| |
| /* |
| * Only allow certain flags for interface types so that |
| * other attributes are silently ignored. Remember that |
| * this is backward compatibility code with old userspace |
| * and shouldn't be hit in other cases anyway. |
| */ |
| switch (iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
| BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
| BIT(NL80211_STA_FLAG_WME) | |
| BIT(NL80211_STA_FLAG_MFP); |
| break; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_STATION: |
| params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
| BIT(NL80211_STA_FLAG_TDLS_PEER); |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_MFP) | |
| BIT(NL80211_STA_FLAG_AUTHORIZED); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
| if (flags[flag]) { |
| params->sta_flags_set |= (1<<flag); |
| |
| /* no longer support new API additions in old API */ |
| if (flag > NL80211_STA_FLAG_MAX_OLD_API) |
| return -EINVAL; |
| } |
| } |
| |
| return 0; |
| } |
| |
| bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, int attr) |
| { |
| struct nlattr *rate; |
| u32 bitrate; |
| u16 bitrate_compat; |
| enum nl80211_rate_info rate_flg; |
| |
| rate = nla_nest_start_noflag(msg, attr); |
| if (!rate) |
| return false; |
| |
| /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
| bitrate = cfg80211_calculate_bitrate(info); |
| /* report 16-bit bitrate only if we can */ |
| bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; |
| if (bitrate > 0 && |
| nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) |
| return false; |
| if (bitrate_compat > 0 && |
| nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) |
| return false; |
| |
| switch (info->bw) { |
| case RATE_INFO_BW_5: |
| rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH; |
| break; |
| case RATE_INFO_BW_10: |
| rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH; |
| break; |
| default: |
| WARN_ON(1); |
| fallthrough; |
| case RATE_INFO_BW_20: |
| rate_flg = 0; |
| break; |
| case RATE_INFO_BW_40: |
| rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH; |
| break; |
| case RATE_INFO_BW_80: |
| rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH; |
| break; |
| case RATE_INFO_BW_160: |
| rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH; |
| break; |
| case RATE_INFO_BW_HE_RU: |
| rate_flg = 0; |
| WARN_ON(!(info->flags & RATE_INFO_FLAGS_HE_MCS)); |
| break; |
| case RATE_INFO_BW_320: |
| rate_flg = NL80211_RATE_INFO_320_MHZ_WIDTH; |
| break; |
| case RATE_INFO_BW_EHT_RU: |
| rate_flg = 0; |
| WARN_ON(!(info->flags & RATE_INFO_FLAGS_EHT_MCS)); |
| break; |
| } |
| |
| if (rate_flg && nla_put_flag(msg, rate_flg)) |
| return false; |
| |
| if (info->flags & RATE_INFO_FLAGS_MCS) { |
| if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) |
| return false; |
| if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
| nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) |
| return false; |
| } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { |
| if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) |
| return false; |
| if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
| nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) |
| return false; |
| } else if (info->flags & RATE_INFO_FLAGS_HE_MCS) { |
| if (nla_put_u8(msg, NL80211_RATE_INFO_HE_MCS, info->mcs)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_HE_NSS, info->nss)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_HE_GI, info->he_gi)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_HE_DCM, info->he_dcm)) |
| return false; |
| if (info->bw == RATE_INFO_BW_HE_RU && |
| nla_put_u8(msg, NL80211_RATE_INFO_HE_RU_ALLOC, |
| info->he_ru_alloc)) |
| return false; |
| } else if (info->flags & RATE_INFO_FLAGS_EHT_MCS) { |
| if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_MCS, info->mcs)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_NSS, info->nss)) |
| return false; |
| if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_GI, info->eht_gi)) |
| return false; |
| if (info->bw == RATE_INFO_BW_EHT_RU && |
| nla_put_u8(msg, NL80211_RATE_INFO_EHT_RU_ALLOC, |
| info->eht_ru_alloc)) |
| return false; |
| } |
| |
| nla_nest_end(msg, rate); |
| return true; |
| } |
| |
| static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, |
| int id) |
| { |
| void *attr; |
| int i = 0; |
| |
| if (!mask) |
| return true; |
| |
| attr = nla_nest_start_noflag(msg, id); |
| if (!attr) |
| return false; |
| |
| for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { |
| if (!(mask & BIT(i))) |
| continue; |
| |
| if (nla_put_u8(msg, i, signal[i])) |
| return false; |
| } |
| |
| nla_nest_end(msg, attr); |
| |
| return true; |
| } |
| |
| static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, |
| u32 seq, int flags, |
| struct cfg80211_registered_device *rdev, |
| struct net_device *dev, |
| const u8 *mac_addr, struct station_info *sinfo) |
| { |
| void *hdr; |
| struct nlattr *sinfoattr, *bss_param; |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
| if (!hdr) { |
| cfg80211_sinfo_release_content(sinfo); |
| return -1; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || |
| nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) |
| goto nla_put_failure; |
| |
| sinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_STA_INFO); |
| if (!sinfoattr) |
| goto nla_put_failure; |
| |
| #define PUT_SINFO(attr, memb, type) do { \ |
| BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \ |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \ |
| nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \ |
| sinfo->memb)) \ |
| goto nla_put_failure; \ |
| } while (0) |
| #define PUT_SINFO_U64(attr, memb) do { \ |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \ |
| nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \ |
| sinfo->memb, NL80211_STA_INFO_PAD)) \ |
| goto nla_put_failure; \ |
| } while (0) |
| |
| PUT_SINFO(CONNECTED_TIME, connected_time, u32); |
| PUT_SINFO(INACTIVE_TIME, inactive_time, u32); |
| PUT_SINFO_U64(ASSOC_AT_BOOTTIME, assoc_at); |
| |
| if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_RX_BYTES) | |
| BIT_ULL(NL80211_STA_INFO_RX_BYTES64)) && |
| nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
| (u32)sinfo->rx_bytes)) |
| goto nla_put_failure; |
| |
| if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_TX_BYTES) | |
| BIT_ULL(NL80211_STA_INFO_TX_BYTES64)) && |
| nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
| (u32)sinfo->tx_bytes)) |
| goto nla_put_failure; |
| |
| PUT_SINFO_U64(RX_BYTES64, rx_bytes); |
| PUT_SINFO_U64(TX_BYTES64, tx_bytes); |
| PUT_SINFO(LLID, llid, u16); |
| PUT_SINFO(PLID, plid, u16); |
| PUT_SINFO(PLINK_STATE, plink_state, u8); |
| PUT_SINFO_U64(RX_DURATION, rx_duration); |
| PUT_SINFO_U64(TX_DURATION, tx_duration); |
| |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) |
| PUT_SINFO(AIRTIME_WEIGHT, airtime_weight, u16); |
| |
| switch (rdev->wiphy.signal_type) { |
| case CFG80211_SIGNAL_TYPE_MBM: |
| PUT_SINFO(SIGNAL, signal, u8); |
| PUT_SINFO(SIGNAL_AVG, signal_avg, u8); |
| break; |
| default: |
| break; |
| } |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) { |
| if (!nl80211_put_signal(msg, sinfo->chains, |
| sinfo->chain_signal, |
| NL80211_STA_INFO_CHAIN_SIGNAL)) |
| goto nla_put_failure; |
| } |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) { |
| if (!nl80211_put_signal(msg, sinfo->chains, |
| sinfo->chain_signal_avg, |
| NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) |
| goto nla_put_failure; |
| } |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) { |
| if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
| NL80211_STA_INFO_TX_BITRATE)) |
| goto nla_put_failure; |
| } |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) { |
| if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, |
| NL80211_STA_INFO_RX_BITRATE)) |
| goto nla_put_failure; |
| } |
| |
| PUT_SINFO(RX_PACKETS, rx_packets, u32); |
| PUT_SINFO(TX_PACKETS, tx_packets, u32); |
| PUT_SINFO(TX_RETRIES, tx_retries, u32); |
| PUT_SINFO(TX_FAILED, tx_failed, u32); |
| PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32); |
| PUT_SINFO(AIRTIME_LINK_METRIC, airtime_link_metric, u32); |
| PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32); |
| PUT_SINFO(LOCAL_PM, local_pm, u32); |
| PUT_SINFO(PEER_PM, peer_pm, u32); |
| PUT_SINFO(NONPEER_PM, nonpeer_pm, u32); |
| PUT_SINFO(CONNECTED_TO_GATE, connected_to_gate, u8); |
| PUT_SINFO(CONNECTED_TO_AS, connected_to_as, u8); |
| |
| if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_BSS_PARAM)) { |
| bss_param = nla_nest_start_noflag(msg, |
| NL80211_STA_INFO_BSS_PARAM); |
| if (!bss_param) |
| goto nla_put_failure; |
| |
| if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
| nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || |
| ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && |
| nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || |
| ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && |
| nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || |
| nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, |
| sinfo->bss_param.dtim_period) || |
| nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, |
| sinfo->bss_param.beacon_interval)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, bss_param); |
| } |
| if ((sinfo->filled & BIT_ULL(NL80211_STA_INFO_STA_FLAGS)) && |
| nla_put(msg, NL80211_STA_INFO_STA_FLAGS, |
| sizeof(struct nl80211_sta_flag_update), |
| &sinfo->sta_flags)) |
| goto nla_put_failure; |
| |
| PUT_SINFO_U64(T_OFFSET, t_offset); |
| PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc); |
| PUT_SINFO_U64(BEACON_RX, rx_beacon); |
| PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8); |
| PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32); |
| PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32); |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT)) { |
| PUT_SINFO(ACK_SIGNAL, ack_signal, u8); |
| PUT_SINFO(ACK_SIGNAL_AVG, avg_ack_signal, s8); |
| } |
| |
| #undef PUT_SINFO |
| #undef PUT_SINFO_U64 |
| |
| if (sinfo->pertid) { |
| struct nlattr *tidsattr; |
| int tid; |
| |
| tidsattr = nla_nest_start_noflag(msg, |
| NL80211_STA_INFO_TID_STATS); |
| if (!tidsattr) |
| goto nla_put_failure; |
| |
| for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { |
| struct cfg80211_tid_stats *tidstats; |
| struct nlattr *tidattr; |
| |
| tidstats = &sinfo->pertid[tid]; |
| |
| if (!tidstats->filled) |
| continue; |
| |
| tidattr = nla_nest_start_noflag(msg, tid + 1); |
| if (!tidattr) |
| goto nla_put_failure; |
| |
| #define PUT_TIDVAL_U64(attr, memb) do { \ |
| if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \ |
| nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \ |
| tidstats->memb, NL80211_TID_STATS_PAD)) \ |
| goto nla_put_failure; \ |
| } while (0) |
| |
| PUT_TIDVAL_U64(RX_MSDU, rx_msdu); |
| PUT_TIDVAL_U64(TX_MSDU, tx_msdu); |
| PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries); |
| PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed); |
| |
| #undef PUT_TIDVAL_U64 |
| if ((tidstats->filled & |
| BIT(NL80211_TID_STATS_TXQ_STATS)) && |
| !nl80211_put_txq_stats(msg, &tidstats->txq_stats, |
| NL80211_TID_STATS_TXQ_STATS)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, tidattr); |
| } |
| |
| nla_nest_end(msg, tidsattr); |
| } |
| |
| nla_nest_end(msg, sinfoattr); |
| |
| if (sinfo->assoc_req_ies_len && |
| nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, |
| sinfo->assoc_req_ies)) |
| goto nla_put_failure; |
| |
| if (sinfo->assoc_resp_ies_len && |
| nla_put(msg, NL80211_ATTR_RESP_IE, sinfo->assoc_resp_ies_len, |
| sinfo->assoc_resp_ies)) |
| goto nla_put_failure; |
| |
| if (sinfo->mlo_params_valid) { |
| if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, |
| sinfo->assoc_link_id)) |
| goto nla_put_failure; |
| |
| if (!is_zero_ether_addr(sinfo->mld_addr) && |
| nla_put(msg, NL80211_ATTR_MLD_ADDR, ETH_ALEN, |
| sinfo->mld_addr)) |
| goto nla_put_failure; |
| } |
| |
| cfg80211_sinfo_release_content(sinfo); |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| cfg80211_sinfo_release_content(sinfo); |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_station(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| struct station_info sinfo; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| u8 mac_addr[ETH_ALEN]; |
| int sta_idx = cb->args[2]; |
| int err; |
| |
| err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL); |
| if (err) |
| return err; |
| /* nl80211_prepare_wdev_dump acquired it in the successful case */ |
| __acquire(&rdev->wiphy.mtx); |
| |
| if (!wdev->netdev) { |
| err = -EINVAL; |
| goto out_err; |
| } |
| |
| if (!rdev->ops->dump_station) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| while (1) { |
| memset(&sinfo, 0, sizeof(sinfo)); |
| err = rdev_dump_station(rdev, wdev->netdev, sta_idx, |
| mac_addr, &sinfo); |
| if (err == -ENOENT) |
| break; |
| if (err) |
| goto out_err; |
| |
| if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION, |
| NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| rdev, wdev->netdev, mac_addr, |
| &sinfo) < 0) |
| goto out; |
| |
| sta_idx++; |
| } |
| |
| out: |
| cb->args[2] = sta_idx; |
| err = skb->len; |
| out_err: |
| wiphy_unlock(&rdev->wiphy); |
| |
| return err; |
| } |
| |
| static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct station_info sinfo; |
| struct sk_buff *msg; |
| u8 *mac_addr = NULL; |
| int err; |
| |
| memset(&sinfo, 0, sizeof(sinfo)); |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!rdev->ops->get_station) |
| return -EOPNOTSUPP; |
| |
| err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
| if (err) |
| return err; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) { |
| cfg80211_sinfo_release_content(&sinfo); |
| return -ENOMEM; |
| } |
| |
| if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, |
| info->snd_portid, info->snd_seq, 0, |
| rdev, dev, mac_addr, &sinfo) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| int cfg80211_check_station_change(struct wiphy *wiphy, |
| struct station_parameters *params, |
| enum cfg80211_station_type statype) |
| { |
| if (params->listen_interval != -1 && |
| statype != CFG80211_STA_AP_CLIENT_UNASSOC) |
| return -EINVAL; |
| |
| if (params->support_p2p_ps != -1 && |
| statype != CFG80211_STA_AP_CLIENT_UNASSOC) |
| return -EINVAL; |
| |
| if (params->aid && |
| !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && |
| statype != CFG80211_STA_AP_CLIENT_UNASSOC) |
| return -EINVAL; |
| |
| /* When you run into this, adjust the code below for the new flag */ |
| BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); |
| |
| switch (statype) { |
| case CFG80211_STA_MESH_PEER_KERNEL: |
| case CFG80211_STA_MESH_PEER_USER: |
| /* |
| * No ignoring the TDLS flag here -- the userspace mesh |
| * code doesn't have the bug of including TDLS in the |
| * mask everywhere. |
| */ |
| if (params->sta_flags_mask & |
| ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_MFP) | |
| BIT(NL80211_STA_FLAG_AUTHORIZED))) |
| return -EINVAL; |
| break; |
| case CFG80211_STA_TDLS_PEER_SETUP: |
| case CFG80211_STA_TDLS_PEER_ACTIVE: |
| if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) |
| return -EINVAL; |
| /* ignore since it can't change */ |
| params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
| break; |
| default: |
| /* disallow mesh-specific things */ |
| if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) |
| return -EINVAL; |
| if (params->local_pm) |
| return -EINVAL; |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
| return -EINVAL; |
| } |
| |
| if (statype != CFG80211_STA_TDLS_PEER_SETUP && |
| statype != CFG80211_STA_TDLS_PEER_ACTIVE) { |
| /* TDLS can't be set, ... */ |
| if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| return -EINVAL; |
| /* |
| * ... but don't bother the driver with it. This works around |
| * a hostapd/wpa_supplicant issue -- it always includes the |
| * TLDS_PEER flag in the mask even for AP mode. |
| */ |
| params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
| } |
| |
| if (statype != CFG80211_STA_TDLS_PEER_SETUP && |
| statype != CFG80211_STA_AP_CLIENT_UNASSOC) { |
| /* reject other things that can't change */ |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) |
| return -EINVAL; |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) |
| return -EINVAL; |
| if (params->link_sta_params.supported_rates) |
| return -EINVAL; |
| if (params->ext_capab || params->link_sta_params.ht_capa || |
| params->link_sta_params.vht_capa || |
| params->link_sta_params.he_capa || |
| params->link_sta_params.eht_capa) |
| return -EINVAL; |
| } |
| |
| if (statype != CFG80211_STA_AP_CLIENT && |
| statype != CFG80211_STA_AP_CLIENT_UNASSOC) { |
| if (params->vlan) |
| return -EINVAL; |
| } |
| |
| switch (statype) { |
| case CFG80211_STA_AP_MLME_CLIENT: |
| /* Use this only for authorizing/unauthorizing a station */ |
| if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) |
| return -EOPNOTSUPP; |
| break; |
| case CFG80211_STA_AP_CLIENT: |
| case CFG80211_STA_AP_CLIENT_UNASSOC: |
| /* accept only the listed bits */ |
| if (params->sta_flags_mask & |
| ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | |
| BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED) | |
| BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
| BIT(NL80211_STA_FLAG_WME) | |
| BIT(NL80211_STA_FLAG_MFP))) |
| return -EINVAL; |
| |
| /* but authenticated/associated only if driver handles it */ |
| if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && |
| params->sta_flags_mask & |
| (BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED))) |
| return -EINVAL; |
| break; |
| case CFG80211_STA_IBSS: |
| case CFG80211_STA_AP_STA: |
| /* reject any changes other than AUTHORIZED */ |
| if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) |
| return -EINVAL; |
| break; |
| case CFG80211_STA_TDLS_PEER_SETUP: |
| /* reject any changes other than AUTHORIZED or WME */ |
| if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | |
| BIT(NL80211_STA_FLAG_WME))) |
| return -EINVAL; |
| /* force (at least) rates when authorizing */ |
| if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && |
| !params->link_sta_params.supported_rates) |
| return -EINVAL; |
| break; |
| case CFG80211_STA_TDLS_PEER_ACTIVE: |
| /* reject any changes */ |
| return -EINVAL; |
| case CFG80211_STA_MESH_PEER_KERNEL: |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
| return -EINVAL; |
| break; |
| case CFG80211_STA_MESH_PEER_USER: |
| if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION && |
| params->plink_action != NL80211_PLINK_ACTION_BLOCK) |
| return -EINVAL; |
| break; |
| } |
| |
| /* |
| * Older kernel versions ignored this attribute entirely, so don't |
| * reject attempts to update it but mark it as unused instead so the |
| * driver won't look at the data. |
| */ |
| if (statype != CFG80211_STA_AP_CLIENT_UNASSOC && |
| statype != CFG80211_STA_TDLS_PEER_SETUP) |
| params->link_sta_params.opmode_notif_used = false; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(cfg80211_check_station_change); |
| |
| /* |
| * Get vlan interface making sure it is running and on the right wiphy. |
| */ |
| static struct net_device *get_vlan(struct genl_info *info, |
| struct cfg80211_registered_device *rdev) |
| { |
| struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
| struct net_device *v; |
| int ret; |
| |
| if (!vlanattr) |
| return NULL; |
| |
| v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); |
| if (!v) |
| return ERR_PTR(-ENODEV); |
| |
| if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
| v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| if (!netif_running(v)) { |
| ret = -ENETDOWN; |
| goto error; |
| } |
| |
| return v; |
| error: |
| dev_put(v); |
| return ERR_PTR(ret); |
| } |
| |
| static int nl80211_parse_sta_wme(struct genl_info *info, |
| struct station_parameters *params) |
| { |
| struct nlattr *tb[NL80211_STA_WME_MAX + 1]; |
| struct nlattr *nla; |
| int err; |
| |
| /* parse WME attributes if present */ |
| if (!info->attrs[NL80211_ATTR_STA_WME]) |
| return 0; |
| |
| nla = info->attrs[NL80211_ATTR_STA_WME]; |
| err = nla_parse_nested_deprecated(tb, NL80211_STA_WME_MAX, nla, |
| nl80211_sta_wme_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| if (tb[NL80211_STA_WME_UAPSD_QUEUES]) |
| params->uapsd_queues = nla_get_u8( |
| tb[NL80211_STA_WME_UAPSD_QUEUES]); |
| if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) |
| return -EINVAL; |
| |
| if (tb[NL80211_STA_WME_MAX_SP]) |
| params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); |
| |
| if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) |
| return -EINVAL; |
| |
| params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_sta_channel_info(struct genl_info *info, |
| struct station_parameters *params) |
| { |
| if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { |
| params->supported_channels = |
| nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); |
| params->supported_channels_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); |
| /* |
| * Need to include at least one (first channel, number of |
| * channels) tuple for each subband (checked in policy), |
| * and must have proper tuples for the rest of the data as well. |
| */ |
| if (params->supported_channels_len % 2) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { |
| params->supported_oper_classes = |
| nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); |
| params->supported_oper_classes_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); |
| } |
| return 0; |
| } |
| |
| static int nl80211_set_station_tdls(struct genl_info *info, |
| struct station_parameters *params) |
| { |
| int err; |
| /* Dummy STA entry gets updated once the peer capabilities are known */ |
| if (info->attrs[NL80211_ATTR_PEER_AID]) |
| params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
| params->link_sta_params.ht_capa = |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
| params->link_sta_params.vht_capa = |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); |
| if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) { |
| params->link_sta_params.he_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| params->link_sta_params.he_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_EHT_CAPABILITY]) { |
| params->link_sta_params.eht_capa = |
| nla_data(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| params->link_sta_params.eht_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| |
| if (!ieee80211_eht_capa_size_ok((const u8 *)params->link_sta_params.he_capa, |
| (const u8 *)params->link_sta_params.eht_capa, |
| params->link_sta_params.eht_capa_len, |
| false)) |
| return -EINVAL; |
| } |
| } |
| |
| err = nl80211_parse_sta_channel_info(info, params); |
| if (err) |
| return err; |
| |
| return nl80211_parse_sta_wme(info, params); |
| } |
| |
| static int nl80211_parse_sta_txpower_setting(struct genl_info *info, |
| struct sta_txpwr *txpwr, |
| bool *txpwr_set) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int idx; |
| |
| if (info->attrs[NL80211_ATTR_STA_TX_POWER_SETTING]) { |
| if (!rdev->ops->set_tx_power || |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_STA_TX_PWR)) |
| return -EOPNOTSUPP; |
| |
| idx = NL80211_ATTR_STA_TX_POWER_SETTING; |
| txpwr->type = nla_get_u8(info->attrs[idx]); |
| |
| if (txpwr->type == NL80211_TX_POWER_LIMITED) { |
| idx = NL80211_ATTR_STA_TX_POWER; |
| |
| if (info->attrs[idx]) |
| txpwr->power = nla_get_s16(info->attrs[idx]); |
| else |
| return -EINVAL; |
| } |
| |
| *txpwr_set = true; |
| } else { |
| *txpwr_set = false; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct station_parameters params; |
| u8 *mac_addr; |
| int err; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| if (!rdev->ops->change_station) |
| return -EOPNOTSUPP; |
| |
| /* |
| * AID and listen_interval properties can be set only for unassociated |
| * station. Include these parameters here and will check them in |
| * cfg80211_check_station_change(). |
| */ |
| if (info->attrs[NL80211_ATTR_STA_AID]) |
| params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
| |
| if (info->attrs[NL80211_ATTR_VLAN_ID]) |
| params.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]); |
| |
| if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
| params.listen_interval = |
| nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); |
| else |
| params.listen_interval = -1; |
| |
| if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) |
| params.support_p2p_ps = |
| nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]); |
| else |
| params.support_p2p_ps = -1; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| params.link_sta_params.link_id = |
| nl80211_link_id_or_invalid(info->attrs); |
| |
| if (info->attrs[NL80211_ATTR_MLD_ADDR]) { |
| /* If MLD_ADDR attribute is set then this is an MLD station |
| * and the MLD_ADDR attribute holds the MLD address and the |
| * MAC attribute holds for the LINK address. |
| * In that case, the link_id is also expected to be valid. |
| */ |
| if (params.link_sta_params.link_id < 0) |
| return -EINVAL; |
| |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| params.link_sta_params.mld_mac = mac_addr; |
| params.link_sta_params.link_mac = |
| nla_data(info->attrs[NL80211_ATTR_MAC]); |
| if (!is_valid_ether_addr(params.link_sta_params.link_mac)) |
| return -EINVAL; |
| } else { |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| } |
| |
| |
| if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { |
| params.link_sta_params.supported_rates = |
| nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| params.link_sta_params.supported_rates_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
| params.capability = |
| nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); |
| params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; |
| } |
| |
| if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { |
| params.ext_capab = |
| nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
| params.ext_capab_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
| } |
| |
| if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
| params.plink_action = |
| nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
| |
| if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { |
| params.plink_state = |
| nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); |
| if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) |
| params.peer_aid = nla_get_u16( |
| info->attrs[NL80211_ATTR_MESH_PEER_AID]); |
| params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; |
| } |
| |
| if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) |
| params.local_pm = nla_get_u32( |
| info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); |
| |
| if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
| params.link_sta_params.opmode_notif_used = true; |
| params.link_sta_params.opmode_notif = |
| nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]) |
| params.link_sta_params.he_6ghz_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]) |
| params.airtime_weight = |
| nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]); |
| |
| if (params.airtime_weight && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) |
| return -EOPNOTSUPP; |
| |
| err = nl80211_parse_sta_txpower_setting(info, |
| ¶ms.link_sta_params.txpwr, |
| ¶ms.link_sta_params.txpwr_set); |
| if (err) |
| return err; |
| |
| /* Include parameters for TDLS peer (will check later) */ |
| err = nl80211_set_station_tdls(info, ¶ms); |
| if (err) |
| return err; |
| |
| params.vlan = get_vlan(info, rdev); |
| if (IS_ERR(params.vlan)) |
| return PTR_ERR(params.vlan); |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_MESH_POINT: |
| break; |
| default: |
| err = -EOPNOTSUPP; |
| goto out_put_vlan; |
| } |
| |
| /* driver will call cfg80211_check_station_change() */ |
| wdev_lock(dev->ieee80211_ptr); |
| err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| out_put_vlan: |
| dev_put(params.vlan); |
| |
| return err; |
| } |
| |
| static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct station_parameters params; |
| u8 *mac_addr = NULL; |
| u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED); |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| if (!rdev->ops->add_station) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_STA_AID] && |
| !info->attrs[NL80211_ATTR_PEER_AID]) |
| return -EINVAL; |
| |
| params.link_sta_params.link_id = |
| nl80211_link_id_or_invalid(info->attrs); |
| |
| if (info->attrs[NL80211_ATTR_MLD_ADDR]) { |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| params.link_sta_params.mld_mac = mac_addr; |
| params.link_sta_params.link_mac = |
| nla_data(info->attrs[NL80211_ATTR_MAC]); |
| if (!is_valid_ether_addr(params.link_sta_params.link_mac)) |
| return -EINVAL; |
| } else { |
| mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| } |
| |
| params.link_sta_params.supported_rates = |
| nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| params.link_sta_params.supported_rates_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| params.listen_interval = |
| nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); |
| |
| if (info->attrs[NL80211_ATTR_VLAN_ID]) |
| params.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]); |
| |
| if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) { |
| params.support_p2p_ps = |
| nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]); |
| } else { |
| /* |
| * if not specified, assume it's supported for P2P GO interface, |
| * and is NOT supported for AP interface |
| */ |
| params.support_p2p_ps = |
| dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO; |
| } |
| |
| if (info->attrs[NL80211_ATTR_PEER_AID]) |
| params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
| else |
| params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
| |
| if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
| params.capability = |
| nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); |
| params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; |
| } |
| |
| if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { |
| params.ext_capab = |
| nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
| params.ext_capab_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
| params.link_sta_params.ht_capa = |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
| params.link_sta_params.vht_capa = |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) { |
| params.link_sta_params.he_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| params.link_sta_params.he_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_EHT_CAPABILITY]) { |
| params.link_sta_params.eht_capa = |
| nla_data(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| params.link_sta_params.eht_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| |
| if (!ieee80211_eht_capa_size_ok((const u8 *)params.link_sta_params.he_capa, |
| (const u8 *)params.link_sta_params.eht_capa, |
| params.link_sta_params.eht_capa_len, |
| false)) |
| return -EINVAL; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]) |
| params.link_sta_params.he_6ghz_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
| params.link_sta_params.opmode_notif_used = true; |
| params.link_sta_params.opmode_notif = |
| nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
| params.plink_action = |
| nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
| |
| if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]) |
| params.airtime_weight = |
| nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]); |
| |
| if (params.airtime_weight && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) |
| return -EOPNOTSUPP; |
| |
| err = nl80211_parse_sta_txpower_setting(info, |
| ¶ms.link_sta_params.txpwr, |
| ¶ms.link_sta_params.txpwr_set); |
| if (err) |
| return err; |
| |
| err = nl80211_parse_sta_channel_info(info, ¶ms); |
| if (err) |
| return err; |
| |
| err = nl80211_parse_sta_wme(info, ¶ms); |
| if (err) |
| return err; |
| |
| if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
| return -EINVAL; |
| |
| /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT |
| * as userspace might just pass through the capabilities from the IEs |
| * directly, rather than enforcing this restriction and returning an |
| * error in this case. |
| */ |
| if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) { |
| params.link_sta_params.ht_capa = NULL; |
| params.link_sta_params.vht_capa = NULL; |
| |
| /* HE and EHT require WME */ |
| if (params.link_sta_params.he_capa_len || |
| params.link_sta_params.he_6ghz_capa || |
| params.link_sta_params.eht_capa_len) |
| return -EINVAL; |
| } |
| |
| /* Ensure that HT/VHT capabilities are not set for 6 GHz HE STA */ |
| if (params.link_sta_params.he_6ghz_capa && |
| (params.link_sta_params.ht_capa || params.link_sta_params.vht_capa)) |
| return -EINVAL; |
| |
| /* When you run into this, adjust the code below for the new flag */ |
| BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| /* ignore WME attributes if iface/sta is not capable */ |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || |
| !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) |
| params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
| |
| /* TDLS peers cannot be added */ |
| if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
| info->attrs[NL80211_ATTR_PEER_AID]) |
| return -EINVAL; |
| /* but don't bother the driver with it */ |
| params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
| |
| /* allow authenticated/associated only if driver handles it */ |
| if (!(rdev->wiphy.features & |
| NL80211_FEATURE_FULL_AP_CLIENT_STATE) && |
| params.sta_flags_mask & auth_assoc) |
| return -EINVAL; |
| |
| /* Older userspace, or userspace wanting to be compatible with |
| * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth |
| * and assoc flags in the mask, but assumes the station will be |
| * added as associated anyway since this was the required driver |
| * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was |
| * introduced. |
| * In order to not bother drivers with this quirk in the API |
| * set the flags in both the mask and set for new stations in |
| * this case. |
| */ |
| if (!(params.sta_flags_mask & auth_assoc)) { |
| params.sta_flags_mask |= auth_assoc; |
| params.sta_flags_set |= auth_assoc; |
| } |
| |
| /* must be last in here for error handling */ |
| params.vlan = get_vlan(info, rdev); |
| if (IS_ERR(params.vlan)) |
| return PTR_ERR(params.vlan); |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| /* ignore uAPSD data */ |
| params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
| |
| /* associated is disallowed */ |
| if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) |
| return -EINVAL; |
| /* TDLS peers cannot be added */ |
| if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
| info->attrs[NL80211_ATTR_PEER_AID]) |
| return -EINVAL; |
| break; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| /* ignore uAPSD data */ |
| params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
| |
| /* these are disallowed */ |
| if (params.sta_flags_mask & |
| (BIT(NL80211_STA_FLAG_ASSOCIATED) | |
| BIT(NL80211_STA_FLAG_AUTHENTICATED))) |
| return -EINVAL; |
| /* Only TDLS peers can be added */ |
| if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) |
| return -EINVAL; |
| /* Can only add if TDLS ... */ |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
| return -EOPNOTSUPP; |
| /* ... with external setup is supported */ |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) |
| return -EOPNOTSUPP; |
| /* |
| * Older wpa_supplicant versions always mark the TDLS peer |
| * as authorized, but it shouldn't yet be. |
| */ |
| params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| /* be aware of params.vlan when changing code here */ |
| |
| wdev_lock(dev->ieee80211_ptr); |
| if (wdev->valid_links) { |
| if (params.link_sta_params.link_id < 0) { |
| err = -EINVAL; |
| goto out; |
| } |
| if (!(wdev->valid_links & BIT(params.link_sta_params.link_id))) { |
| err = -ENOLINK; |
| goto out; |
| } |
| } else { |
| if (params.link_sta_params.link_id >= 0) { |
| err = -EINVAL; |
| goto out; |
| } |
| } |
| err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
| out: |
| wdev_unlock(dev->ieee80211_ptr); |
| dev_put(params.vlan); |
| return err; |
| } |
| |
| static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct station_del_parameters params; |
| int ret; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_MESH_POINT: |
| case NL80211_IFTYPE_P2P_GO: |
| /* always accept these */ |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| /* conditionally accept */ |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_DEL_IBSS_STA)) |
| break; |
| return -EINVAL; |
| default: |
| return -EINVAL; |
| } |
| |
| if (!rdev->ops->del_station) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) { |
| params.subtype = |
| nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); |
| if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 && |
| params.subtype != IEEE80211_STYPE_DEAUTH >> 4) |
| return -EINVAL; |
| } else { |
| /* Default to Deauthentication frame */ |
| params.subtype = IEEE80211_STYPE_DEAUTH >> 4; |
| } |
| |
| if (info->attrs[NL80211_ATTR_REASON_CODE]) { |
| params.reason_code = |
| nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
| if (params.reason_code == 0) |
| return -EINVAL; /* 0 is reserved */ |
| } else { |
| /* Default to reason code 2 */ |
| params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; |
| } |
| |
| wdev_lock(dev->ieee80211_ptr); |
| ret = rdev_del_station(rdev, dev, ¶ms); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return ret; |
| } |
| |
| static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
| int flags, struct net_device *dev, |
| u8 *dst, u8 *next_hop, |
| struct mpath_info *pinfo) |
| { |
| void *hdr; |
| struct nlattr *pinfoattr; |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH); |
| if (!hdr) |
| return -1; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || |
| nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || |
| nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) |
| goto nla_put_failure; |
| |
| pinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_MPATH_INFO); |
| if (!pinfoattr) |
| goto nla_put_failure; |
| if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, |
| pinfo->frame_qlen)) |
| goto nla_put_failure; |
| if (((pinfo->filled & MPATH_INFO_SN) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || |
| ((pinfo->filled & MPATH_INFO_METRIC) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, |
| pinfo->metric)) || |
| ((pinfo->filled & MPATH_INFO_EXPTIME) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, |
| pinfo->exptime)) || |
| ((pinfo->filled & MPATH_INFO_FLAGS) && |
| nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, |
| pinfo->flags)) || |
| ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, |
| pinfo->discovery_timeout)) || |
| ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && |
| nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, |
| pinfo->discovery_retries)) || |
| ((pinfo->filled & MPATH_INFO_HOP_COUNT) && |
| nla_put_u8(msg, NL80211_MPATH_INFO_HOP_COUNT, |
| pinfo->hop_count)) || |
| ((pinfo->filled & MPATH_INFO_PATH_CHANGE) && |
| nla_put_u32(msg, NL80211_MPATH_INFO_PATH_CHANGE, |
| pinfo->path_change_count))) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, pinfoattr); |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_mpath(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| struct mpath_info pinfo; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| u8 dst[ETH_ALEN]; |
| u8 next_hop[ETH_ALEN]; |
| int path_idx = cb->args[2]; |
| int err; |
| |
| err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL); |
| if (err) |
| return err; |
| /* nl80211_prepare_wdev_dump acquired it in the successful case */ |
| __acquire(&rdev->wiphy.mtx); |
| |
| if (!rdev->ops->dump_mpath) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| while (1) { |
| err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, |
| next_hop, &pinfo); |
| if (err == -ENOENT) |
| break; |
| if (err) |
| goto out_err; |
| |
| if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| wdev->netdev, dst, next_hop, |
| &pinfo) < 0) |
| goto out; |
| |
| path_idx++; |
| } |
| |
| out: |
| cb->args[2] = path_idx; |
| err = skb->len; |
| out_err: |
| wiphy_unlock(&rdev->wiphy); |
| return err; |
| } |
| |
| static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| struct mpath_info pinfo; |
| struct sk_buff *msg; |
| u8 *dst = NULL; |
| u8 next_hop[ETH_ALEN]; |
| |
| memset(&pinfo, 0, sizeof(pinfo)); |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!rdev->ops->get_mpath) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
| if (err) |
| return err; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
| dev, dst, next_hop, &pinfo) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 *dst = NULL; |
| u8 *next_hop = NULL; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
| return -EINVAL; |
| |
| dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
| |
| if (!rdev->ops->change_mpath) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| return rdev_change_mpath(rdev, dev, dst, next_hop); |
| } |
| |
| static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 *dst = NULL; |
| u8 *next_hop = NULL; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
| return -EINVAL; |
| |
| dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
| |
| if (!rdev->ops->add_mpath) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| return rdev_add_mpath(rdev, dev, dst, next_hop); |
| } |
| |
| static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 *dst = NULL; |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!rdev->ops->del_mpath) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| return rdev_del_mpath(rdev, dev, dst); |
| } |
| |
| static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int err; |
| struct net_device *dev = info->user_ptr[1]; |
| struct mpath_info pinfo; |
| struct sk_buff *msg; |
| u8 *dst = NULL; |
| u8 mpp[ETH_ALEN]; |
| |
| memset(&pinfo, 0, sizeof(pinfo)); |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!rdev->ops->get_mpp) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo); |
| if (err) |
| return err; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
| dev, dst, mpp, &pinfo) < 0) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| return genlmsg_reply(msg, info); |
| } |
| |
| static int nl80211_dump_mpp(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| struct mpath_info pinfo; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| u8 dst[ETH_ALEN]; |
| u8 mpp[ETH_ALEN]; |
| int path_idx = cb->args[2]; |
| int err; |
| |
| err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL); |
| if (err) |
| return err; |
| /* nl80211_prepare_wdev_dump acquired it in the successful case */ |
| __acquire(&rdev->wiphy.mtx); |
| |
| if (!rdev->ops->dump_mpp) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| while (1) { |
| err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst, |
| mpp, &pinfo); |
| if (err == -ENOENT) |
| break; |
| if (err) |
| goto out_err; |
| |
| if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| wdev->netdev, dst, mpp, |
| &pinfo) < 0) |
| goto out; |
| |
| path_idx++; |
| } |
| |
| out: |
| cb->args[2] = path_idx; |
| err = skb->len; |
| out_err: |
| wiphy_unlock(&rdev->wiphy); |
| return err; |
| } |
| |
| static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct bss_parameters params; |
| int err; |
| |
| memset(¶ms, 0, sizeof(params)); |
| params.link_id = nl80211_link_id_or_invalid(info->attrs); |
| /* default to not changing parameters */ |
| params.use_cts_prot = -1; |
| params.use_short_preamble = -1; |
| params.use_short_slot_time = -1; |
| params.ap_isolate = -1; |
| params.ht_opmode = -1; |
| params.p2p_ctwindow = -1; |
| params.p2p_opp_ps = -1; |
| |
| if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) |
| params.use_cts_prot = |
| nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); |
| if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) |
| params.use_short_preamble = |
| nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); |
| if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) |
| params.use_short_slot_time = |
| nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); |
| if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
| params.basic_rates = |
| nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| params.basic_rates_len = |
| nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| } |
| if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
| params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); |
| if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
| params.ht_opmode = |
| nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); |
| |
| if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EINVAL; |
| params.p2p_ctwindow = |
| nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); |
| if (params.p2p_ctwindow != 0 && |
| !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { |
| u8 tmp; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EINVAL; |
| tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); |
| params.p2p_opp_ps = tmp; |
| if (params.p2p_opp_ps && |
| !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) |
| return -EINVAL; |
| } |
| |
| if (!rdev->ops->change_bss) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(wdev); |
| err = rdev_change_bss(rdev, dev, ¶ms); |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) |
| { |
| char *data = NULL; |
| bool is_indoor; |
| enum nl80211_user_reg_hint_type user_reg_hint_type; |
| u32 owner_nlportid; |
| |
| /* |
| * You should only get this when cfg80211 hasn't yet initialized |
| * completely when built-in to the kernel right between the time |
| * window between nl80211_init() and regulatory_init(), if that is |
| * even possible. |
| */ |
| if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
| return -EINPROGRESS; |
| |
| if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
| user_reg_hint_type = |
| nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); |
| else |
| user_reg_hint_type = NL80211_USER_REG_HINT_USER; |
| |
| switch (user_reg_hint_type) { |
| case NL80211_USER_REG_HINT_USER: |
| case NL80211_USER_REG_HINT_CELL_BASE: |
| if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
| return -EINVAL; |
| |
| data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); |
| return regulatory_hint_user(data, user_reg_hint_type); |
| case NL80211_USER_REG_HINT_INDOOR: |
| if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
| owner_nlportid = info->snd_portid; |
| is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR]; |
| } else { |
| owner_nlportid = 0; |
| is_indoor = true; |
| } |
| |
| return regulatory_hint_indoor(is_indoor, owner_nlportid); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info) |
| { |
| return reg_reload_regdb(); |
| } |
| |
| static int nl80211_get_mesh_config(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct mesh_config cur_params; |
| int err = 0; |
| void *hdr; |
| struct nlattr *pinfoattr; |
| struct sk_buff *msg; |
| |
| if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->get_mesh_config) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(wdev); |
| /* If not connected, get default parameters */ |
| if (!wdev->u.mesh.id_len) |
| memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); |
| else |
| err = rdev_get_mesh_config(rdev, dev, &cur_params); |
| wdev_unlock(wdev); |
| |
| if (err) |
| return err; |
| |
| /* Draw up a netlink message to send back */ |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_MESH_CONFIG); |
| if (!hdr) |
| goto out; |
| pinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_MESH_CONFIG); |
| if (!pinfoattr) |
| goto nla_put_failure; |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, |
| cur_params.dot11MeshRetryTimeout) || |
| nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
| cur_params.dot11MeshConfirmTimeout) || |
| nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, |
| cur_params.dot11MeshHoldingTimeout) || |
| nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, |
| cur_params.dot11MeshMaxPeerLinks) || |
| nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, |
| cur_params.dot11MeshMaxRetries) || |
| nla_put_u8(msg, NL80211_MESHCONF_TTL, |
| cur_params.dot11MeshTTL) || |
| nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, |
| cur_params.element_ttl) || |
| nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
| cur_params.auto_open_plinks) || |
| nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
| cur_params.dot11MeshNbrOffsetMaxNeighbor) || |
| nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
| cur_params.dot11MeshHWMPmaxPREQretries) || |
| nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, |
| cur_params.path_refresh_time) || |
| nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
| cur_params.min_discovery_timeout) || |
| nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
| cur_params.dot11MeshHWMPactivePathTimeout) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
| cur_params.dot11MeshHWMPpreqMinInterval) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
| cur_params.dot11MeshHWMPperrMinInterval) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
| cur_params.dot11MeshHWMPnetDiameterTraversalTime) || |
| nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
| cur_params.dot11MeshHWMPRootMode) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, |
| cur_params.dot11MeshHWMPRannInterval) || |
| nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, |
| cur_params.dot11MeshGateAnnouncementProtocol) || |
| nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, |
| cur_params.dot11MeshForwarding) || |
| nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, |
| cur_params.rssi_threshold) || |
| nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, |
| cur_params.ht_opmode) || |
| nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
| cur_params.dot11MeshHWMPactivePathToRootTimeout) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
| cur_params.dot11MeshHWMProotInterval) || |
| nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
| cur_params.dot11MeshHWMPconfirmationInterval) || |
| nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, |
| cur_params.power_mode) || |
| nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, |
| cur_params.dot11MeshAwakeWindowDuration) || |
| nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, |
| cur_params.plink_timeout) || |
| nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_GATE, |
| cur_params.dot11MeshConnectedToMeshGate) || |
| nla_put_u8(msg, NL80211_MESHCONF_NOLEARN, |
| cur_params.dot11MeshNolearn) || |
| nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_AS, |
| cur_params.dot11MeshConnectedToAuthServer)) |
| goto nla_put_failure; |
| nla_nest_end(msg, pinfoattr); |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| out: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| static const struct nla_policy |
| nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
| [NL80211_MESHCONF_RETRY_TIMEOUT] = |
| NLA_POLICY_RANGE(NLA_U16, 1, 255), |
| [NL80211_MESHCONF_CONFIRM_TIMEOUT] = |
| NLA_POLICY_RANGE(NLA_U16, 1, 255), |
| [NL80211_MESHCONF_HOLDING_TIMEOUT] = |
| NLA_POLICY_RANGE(NLA_U16, 1, 255), |
| [NL80211_MESHCONF_MAX_PEER_LINKS] = |
| NLA_POLICY_RANGE(NLA_U16, 0, 255), |
| [NL80211_MESHCONF_MAX_RETRIES] = NLA_POLICY_MAX(NLA_U8, 16), |
| [NL80211_MESHCONF_TTL] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_MESHCONF_ELEMENT_TTL] = NLA_POLICY_MIN(NLA_U8, 1), |
| [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = NLA_POLICY_MAX(NLA_U8, 1), |
| [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = |
| NLA_POLICY_RANGE(NLA_U32, 1, 255), |
| [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
| [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, |
| [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, |
| [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_HWMP_ROOTMODE] = NLA_POLICY_MAX(NLA_U8, 4), |
| [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = NLA_POLICY_MAX(NLA_U8, 1), |
| [NL80211_MESHCONF_FORWARDING] = NLA_POLICY_MAX(NLA_U8, 1), |
| [NL80211_MESHCONF_RSSI_THRESHOLD] = |
| NLA_POLICY_RANGE(NLA_S32, -255, 0), |
| [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, |
| [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
| [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = |
| NLA_POLICY_MIN(NLA_U16, 1), |
| [NL80211_MESHCONF_POWER_MODE] = |
| NLA_POLICY_RANGE(NLA_U32, |
| NL80211_MESH_POWER_ACTIVE, |
| NL80211_MESH_POWER_MAX), |
| [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, |
| [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, |
| [NL80211_MESHCONF_CONNECTED_TO_GATE] = NLA_POLICY_RANGE(NLA_U8, 0, 1), |
| [NL80211_MESHCONF_NOLEARN] = NLA_POLICY_RANGE(NLA_U8, 0, 1), |
| [NL80211_MESHCONF_CONNECTED_TO_AS] = NLA_POLICY_RANGE(NLA_U8, 0, 1), |
| }; |
| |
| static const struct nla_policy |
| nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { |
| [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
| [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
| [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, |
| [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
| [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, |
| [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, |
| [NL80211_MESH_SETUP_IE] = |
| NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr, |
| IEEE80211_MAX_DATA_LEN), |
| [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
| }; |
| |
| static int nl80211_parse_mesh_config(struct genl_info *info, |
| struct mesh_config *cfg, |
| u32 *mask_out) |
| { |
| struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
| u32 mask = 0; |
| u16 ht_opmode; |
| |
| #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, mask, attr, fn) \ |
| do { \ |
| if (tb[attr]) { \ |
| cfg->param = fn(tb[attr]); \ |
| mask |= BIT((attr) - 1); \ |
| } \ |
| } while (0) |
| |
| if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
| return -EINVAL; |
| if (nla_parse_nested_deprecated(tb, NL80211_MESHCONF_ATTR_MAX, info->attrs[NL80211_ATTR_MESH_CONFIG], nl80211_meshconf_params_policy, info->extack)) |
| return -EINVAL; |
| |
| /* This makes sure that there aren't more than 32 mesh config |
| * parameters (otherwise our bitfield scheme would not work.) */ |
| BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); |
| |
| /* Fill in the params struct */ |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, mask, |
| NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, mask, |
| NL80211_MESHCONF_CONFIRM_TIMEOUT, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, mask, |
| NL80211_MESHCONF_HOLDING_TIMEOUT, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, mask, |
| NL80211_MESHCONF_MAX_PEER_LINKS, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, mask, |
| NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, mask, |
| NL80211_MESHCONF_TTL, nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, mask, |
| NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, mask, |
| NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
| nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
| mask, |
| NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
| nla_get_u32); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, mask, |
| NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
| nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, mask, |
| NL80211_MESHCONF_PATH_REFRESH_TIME, |
| nla_get_u32); |
| if (mask & BIT(NL80211_MESHCONF_PATH_REFRESH_TIME) && |
| (cfg->path_refresh_time < 1 || cfg->path_refresh_time > 65535)) |
| return -EINVAL; |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, mask, |
| NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
| mask, |
| NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
| nla_get_u32); |
| if (mask & BIT(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT) && |
| (cfg->dot11MeshHWMPactivePathTimeout < 1 || |
| cfg->dot11MeshHWMPactivePathTimeout > 65535)) |
| return -EINVAL; |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, mask, |
| NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, mask, |
| NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
| dot11MeshHWMPnetDiameterTraversalTime, mask, |
| NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask, |
| NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask, |
| NL80211_MESHCONF_HWMP_RANN_INTERVAL, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshGateAnnouncementProtocol, |
| mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, |
| nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, mask, |
| NL80211_MESHCONF_FORWARDING, nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, mask, |
| NL80211_MESHCONF_RSSI_THRESHOLD, |
| nla_get_s32); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToMeshGate, mask, |
| NL80211_MESHCONF_CONNECTED_TO_GATE, |
| nla_get_u8); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToAuthServer, mask, |
| NL80211_MESHCONF_CONNECTED_TO_AS, |
| nla_get_u8); |
| /* |
| * Check HT operation mode based on |
| * IEEE 802.11-2016 9.4.2.57 HT Operation element. |
| */ |
| if (tb[NL80211_MESHCONF_HT_OPMODE]) { |
| ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]); |
| |
| if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION | |
| IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT | |
| IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)) |
| return -EINVAL; |
| |
| /* NON_HT_STA bit is reserved, but some programs set it */ |
| ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT; |
| |
| cfg->ht_opmode = ht_opmode; |
| mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1)); |
| } |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
| dot11MeshHWMPactivePathToRootTimeout, mask, |
| NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
| nla_get_u32); |
| if (mask & BIT(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT) && |
| (cfg->dot11MeshHWMPactivePathToRootTimeout < 1 || |
| cfg->dot11MeshHWMPactivePathToRootTimeout > 65535)) |
| return -EINVAL; |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, mask, |
| NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPconfirmationInterval, |
| mask, |
| NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
| nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, mask, |
| NL80211_MESHCONF_POWER_MODE, nla_get_u32); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, mask, |
| NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, mask, |
| NL80211_MESHCONF_PLINK_TIMEOUT, nla_get_u32); |
| FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNolearn, mask, |
| NL80211_MESHCONF_NOLEARN, nla_get_u8); |
| if (mask_out) |
| *mask_out = mask; |
| |
| return 0; |
| |
| #undef FILL_IN_MESH_PARAM_IF_SET |
| } |
| |
| static int nl80211_parse_mesh_setup(struct genl_info *info, |
| struct mesh_setup *setup) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; |
| |
| if (!info->attrs[NL80211_ATTR_MESH_SETUP]) |
| return -EINVAL; |
| if (nla_parse_nested_deprecated(tb, NL80211_MESH_SETUP_ATTR_MAX, info->attrs[NL80211_ATTR_MESH_SETUP], nl80211_mesh_setup_params_policy, info->extack)) |
| return -EINVAL; |
| |
| if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
| setup->sync_method = |
| (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? |
| IEEE80211_SYNC_METHOD_VENDOR : |
| IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; |
| |
| if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
| setup->path_sel_proto = |
| (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? |
| IEEE80211_PATH_PROTOCOL_VENDOR : |
| IEEE80211_PATH_PROTOCOL_HWMP; |
| |
| if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) |
| setup->path_metric = |
| (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? |
| IEEE80211_PATH_METRIC_VENDOR : |
| IEEE80211_PATH_METRIC_AIRTIME; |
| |
| if (tb[NL80211_MESH_SETUP_IE]) { |
| struct nlattr *ieattr = |
| tb[NL80211_MESH_SETUP_IE]; |
| setup->ie = nla_data(ieattr); |
| setup->ie_len = nla_len(ieattr); |
| } |
| if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && |
| !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) |
| return -EINVAL; |
| setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); |
| setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
| setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); |
| if (setup->is_secure) |
| setup->user_mpm = true; |
| |
| if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { |
| if (!setup->user_mpm) |
| return -EINVAL; |
| setup->auth_id = |
| nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_update_mesh_config(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct mesh_config cfg; |
| u32 mask; |
| int err; |
| |
| if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->update_mesh_config) |
| return -EOPNOTSUPP; |
| |
| err = nl80211_parse_mesh_config(info, &cfg, &mask); |
| if (err) |
| return err; |
| |
| wdev_lock(wdev); |
| if (!wdev->u.mesh.id_len) |
| err = -ENOLINK; |
| |
| if (!err) |
| err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
| |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom, |
| struct sk_buff *msg) |
| { |
| struct nlattr *nl_reg_rules; |
| unsigned int i; |
| |
| if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || |
| (regdom->dfs_region && |
| nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) |
| goto nla_put_failure; |
| |
| nl_reg_rules = nla_nest_start_noflag(msg, NL80211_ATTR_REG_RULES); |
| if (!nl_reg_rules) |
| goto nla_put_failure; |
| |
| for (i = 0; i < regdom->n_reg_rules; i++) { |
| struct nlattr *nl_reg_rule; |
| const struct ieee80211_reg_rule *reg_rule; |
| const struct ieee80211_freq_range *freq_range; |
| const struct ieee80211_power_rule *power_rule; |
| unsigned int max_bandwidth_khz; |
| |
| reg_rule = ®dom->reg_rules[i]; |
| freq_range = ®_rule->freq_range; |
| power_rule = ®_rule->power_rule; |
| |
| nl_reg_rule = nla_nest_start_noflag(msg, i); |
| if (!nl_reg_rule) |
| goto nla_put_failure; |
| |
| max_bandwidth_khz = freq_range->max_bandwidth_khz; |
| if (!max_bandwidth_khz) |
| max_bandwidth_khz = reg_get_max_bandwidth(regdom, |
| reg_rule); |
| |
| if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
| reg_rule->flags) || |
| nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, |
| freq_range->start_freq_khz) || |
| nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, |
| freq_range->end_freq_khz) || |
| nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, |
| max_bandwidth_khz) || |
| nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, |
| power_rule->max_antenna_gain) || |
| nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, |
| power_rule->max_eirp) || |
| nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, |
| reg_rule->dfs_cac_ms)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nl_reg_rule); |
| } |
| |
| nla_nest_end(msg, nl_reg_rules); |
| return 0; |
| |
| nla_put_failure: |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info) |
| { |
| const struct ieee80211_regdomain *regdom = NULL; |
| struct cfg80211_registered_device *rdev; |
| struct wiphy *wiphy = NULL; |
| struct sk_buff *msg; |
| int err = -EMSGSIZE; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOBUFS; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_REG); |
| if (!hdr) |
| goto put_failure; |
| |
| rtnl_lock(); |
| |
| if (info->attrs[NL80211_ATTR_WIPHY]) { |
| bool self_managed; |
| |
| rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
| if (IS_ERR(rdev)) { |
| err = PTR_ERR(rdev); |
| goto nla_put_failure; |
| } |
| |
| wiphy = &rdev->wiphy; |
| self_managed = wiphy->regulatory_flags & |
| REGULATORY_WIPHY_SELF_MANAGED; |
| |
| rcu_read_lock(); |
| |
| regdom = get_wiphy_regdom(wiphy); |
| |
| /* a self-managed-reg device must have a private regdom */ |
| if (WARN_ON(!regdom && self_managed)) { |
| err = -EINVAL; |
| goto nla_put_failure_rcu; |
| } |
| |
| if (regdom && |
| nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
| goto nla_put_failure_rcu; |
| } else { |
| rcu_read_lock(); |
| } |
| |
| if (!wiphy && reg_last_request_cell_base() && |
| nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, |
| NL80211_USER_REG_HINT_CELL_BASE)) |
| goto nla_put_failure_rcu; |
| |
| if (!regdom) |
| regdom = rcu_dereference(cfg80211_regdomain); |
| |
| if (nl80211_put_regdom(regdom, msg)) |
| goto nla_put_failure_rcu; |
| |
| rcu_read_unlock(); |
| |
| genlmsg_end(msg, hdr); |
| rtnl_unlock(); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure_rcu: |
| rcu_read_unlock(); |
| nla_put_failure: |
| rtnl_unlock(); |
| put_failure: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb, |
| u32 seq, int flags, struct wiphy *wiphy, |
| const struct ieee80211_regdomain *regdom) |
| { |
| void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
| NL80211_CMD_GET_REG); |
| |
| if (!hdr) |
| return -1; |
| |
| genl_dump_check_consistent(cb, hdr); |
| |
| if (nl80211_put_regdom(regdom, msg)) |
| goto nla_put_failure; |
| |
| if (!wiphy && reg_last_request_cell_base() && |
| nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, |
| NL80211_USER_REG_HINT_CELL_BASE)) |
| goto nla_put_failure; |
| |
| if (wiphy && |
| nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
| goto nla_put_failure; |
| |
| if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
| nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_get_reg_dump(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| const struct ieee80211_regdomain *regdom = NULL; |
| struct cfg80211_registered_device *rdev; |
| int err, reg_idx, start = cb->args[2]; |
| |
| rcu_read_lock(); |
| |
| if (cfg80211_regdomain && start == 0) { |
| err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, |
| NLM_F_MULTI, NULL, |
| rcu_dereference(cfg80211_regdomain)); |
| if (err < 0) |
| goto out_err; |
| } |
| |
| /* the global regdom is idx 0 */ |
| reg_idx = 1; |
| list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
| regdom = get_wiphy_regdom(&rdev->wiphy); |
| if (!regdom) |
| continue; |
| |
| if (++reg_idx <= start) |
| continue; |
| |
| err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, |
| NLM_F_MULTI, &rdev->wiphy, regdom); |
| if (err < 0) { |
| reg_idx--; |
| break; |
| } |
| } |
| |
| cb->args[2] = reg_idx; |
| err = skb->len; |
| out_err: |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
| static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
| [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, |
| [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, |
| [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, |
| [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, |
| }; |
| |
| static int parse_reg_rule(struct nlattr *tb[], |
| struct ieee80211_reg_rule *reg_rule) |
| { |
| struct ieee80211_freq_range *freq_range = ®_rule->freq_range; |
| struct ieee80211_power_rule *power_rule = ®_rule->power_rule; |
| |
| if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) |
| return -EINVAL; |
| if (!tb[NL80211_ATTR_FREQ_RANGE_START]) |
| return -EINVAL; |
| if (!tb[NL80211_ATTR_FREQ_RANGE_END]) |
| return -EINVAL; |
| if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) |
| return -EINVAL; |
| if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) |
| return -EINVAL; |
| |
| reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); |
| |
| freq_range->start_freq_khz = |
| nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); |
| freq_range->end_freq_khz = |
| nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); |
| freq_range->max_bandwidth_khz = |
| nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); |
| |
| power_rule->max_eirp = |
| nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); |
| |
| if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) |
| power_rule->max_antenna_gain = |
| nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); |
| |
| if (tb[NL80211_ATTR_DFS_CAC_TIME]) |
| reg_rule->dfs_cac_ms = |
| nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); |
| |
| return 0; |
| } |
| |
| static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; |
| struct nlattr *nl_reg_rule; |
| char *alpha2; |
| int rem_reg_rules, r; |
| u32 num_rules = 0, rule_idx = 0; |
| enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; |
| struct ieee80211_regdomain *rd; |
| |
| if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_REG_RULES]) |
| return -EINVAL; |
| |
| alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); |
| |
| if (info->attrs[NL80211_ATTR_DFS_REGION]) |
| dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); |
| |
| nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
| rem_reg_rules) { |
| num_rules++; |
| if (num_rules > NL80211_MAX_SUPP_REG_RULES) |
| return -EINVAL; |
| } |
| |
| rtnl_lock(); |
| if (!reg_is_valid_request(alpha2)) { |
| r = -EINVAL; |
| goto out; |
| } |
| |
| rd = kzalloc(struct_size(rd, reg_rules, num_rules), GFP_KERNEL); |
| if (!rd) { |
| r = -ENOMEM; |
| goto out; |
| } |
| |
| rd->n_reg_rules = num_rules; |
| rd->alpha2[0] = alpha2[0]; |
| rd->alpha2[1] = alpha2[1]; |
| |
| /* |
| * Disable DFS master mode if the DFS region was |
| * not supported or known on this kernel. |
| */ |
| if (reg_supported_dfs_region(dfs_region)) |
| rd->dfs_region = dfs_region; |
| |
| nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
| rem_reg_rules) { |
| r = nla_parse_nested_deprecated(tb, NL80211_REG_RULE_ATTR_MAX, |
| nl_reg_rule, reg_rule_policy, |
| info->extack); |
| if (r) |
| goto bad_reg; |
| r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
| if (r) |
| goto bad_reg; |
| |
| rule_idx++; |
| |
| if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
| r = -EINVAL; |
| goto bad_reg; |
| } |
| } |
| |
| r = set_regdom(rd, REGD_SOURCE_CRDA); |
| /* set_regdom takes ownership of rd */ |
| rd = NULL; |
| bad_reg: |
| kfree(rd); |
| out: |
| rtnl_unlock(); |
| return r; |
| } |
| #endif /* CONFIG_CFG80211_CRDA_SUPPORT */ |
| |
| static int validate_scan_freqs(struct nlattr *freqs) |
| { |
| struct nlattr *attr1, *attr2; |
| int n_channels = 0, tmp1, tmp2; |
| |
| nla_for_each_nested(attr1, freqs, tmp1) |
| if (nla_len(attr1) != sizeof(u32)) |
| return 0; |
| |
| nla_for_each_nested(attr1, freqs, tmp1) { |
| n_channels++; |
| /* |
| * Some hardware has a limited channel list for |
| * scanning, and it is pretty much nonsensical |
| * to scan for a channel twice, so disallow that |
| * and don't require drivers to check that the |
| * channel list they get isn't longer than what |
| * they can scan, as long as they can scan all |
| * the channels they registered at once. |
| */ |
| nla_for_each_nested(attr2, freqs, tmp2) |
| if (attr1 != attr2 && |
| nla_get_u32(attr1) == nla_get_u32(attr2)) |
| return 0; |
| } |
| |
| return n_channels; |
| } |
| |
| static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b) |
| { |
| return b < NUM_NL80211_BANDS && wiphy->bands[b]; |
| } |
| |
| static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy, |
| struct cfg80211_bss_selection *bss_select) |
| { |
| struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1]; |
| struct nlattr *nest; |
| int err; |
| bool found = false; |
| int i; |
| |
| /* only process one nested attribute */ |
| nest = nla_data(nla); |
| if (!nla_ok(nest, nla_len(nest))) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(attr, NL80211_BSS_SELECT_ATTR_MAX, |
| nest, nl80211_bss_select_policy, |
| NULL); |
| if (err) |
| return err; |
| |
| /* only one attribute may be given */ |
| for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) { |
| if (attr[i]) { |
| if (found) |
| return -EINVAL; |
| found = true; |
| } |
| } |
| |
| bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID; |
| |
| if (attr[NL80211_BSS_SELECT_ATTR_RSSI]) |
| bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI; |
| |
| if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) { |
| bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF; |
| bss_select->param.band_pref = |
| nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]); |
| if (!is_band_valid(wiphy, bss_select->param.band_pref)) |
| return -EINVAL; |
| } |
| |
| if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) { |
| struct nl80211_bss_select_rssi_adjust *adj_param; |
| |
| adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]); |
| bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST; |
| bss_select->param.adjust.band = adj_param->band; |
| bss_select->param.adjust.delta = adj_param->delta; |
| if (!is_band_valid(wiphy, bss_select->param.adjust.band)) |
| return -EINVAL; |
| } |
| |
| /* user-space did not provide behaviour attribute */ |
| if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID) |
| return -EINVAL; |
| |
| if (!(wiphy->bss_select_support & BIT(bss_select->behaviour))) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| int nl80211_parse_random_mac(struct nlattr **attrs, |
| u8 *mac_addr, u8 *mac_addr_mask) |
| { |
| int i; |
| |
| if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) { |
| eth_zero_addr(mac_addr); |
| eth_zero_addr(mac_addr_mask); |
| mac_addr[0] = 0x2; |
| mac_addr_mask[0] = 0x3; |
| |
| return 0; |
| } |
| |
| /* need both or none */ |
| if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK]) |
| return -EINVAL; |
| |
| memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN); |
| memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN); |
| |
| /* don't allow or configure an mcast address */ |
| if (!is_multicast_ether_addr(mac_addr_mask) || |
| is_multicast_ether_addr(mac_addr)) |
| return -EINVAL; |
| |
| /* |
| * allow users to pass a MAC address that has bits set outside |
| * of the mask, but don't bother drivers with having to deal |
| * with such bits |
| */ |
| for (i = 0; i < ETH_ALEN; i++) |
| mac_addr[i] &= mac_addr_mask[i]; |
| |
| return 0; |
| } |
| |
| static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev, |
| struct ieee80211_channel *chan) |
| { |
| unsigned int link_id; |
| bool all_ok = true; |
| |
| ASSERT_WDEV_LOCK(wdev); |
| |
| if (!cfg80211_beaconing_iface_active(wdev)) |
| return true; |
| |
| /* |
| * FIXME: check if we have a free HW resource/link for chan |
| * |
| * This, as well as the FIXME below, requires knowing the link |
| * capabilities of the hardware. |
| */ |
| |
| /* we cannot leave radar channels */ |
| for_each_valid_link(wdev, link_id) { |
| struct cfg80211_chan_def *chandef; |
| |
| chandef = wdev_chandef(wdev, link_id); |
| if (!chandef || !chandef->chan) |
| continue; |
| |
| /* |
| * FIXME: don't require all_ok, but rather check only the |
| * correct HW resource/link onto which 'chan' falls, |
| * as only that link leaves the channel for doing |
| * the off-channel operation. |
| */ |
| |
| if (chandef->chan->flags & IEEE80211_CHAN_RADAR) |
| all_ok = false; |
| } |
| |
| if (all_ok) |
| return true; |
| |
| return regulatory_pre_cac_allowed(wdev->wiphy); |
| } |
| |
| static bool nl80211_check_scan_feat(struct wiphy *wiphy, u32 flags, u32 flag, |
| enum nl80211_ext_feature_index feat) |
| { |
| if (!(flags & flag)) |
| return true; |
| if (wiphy_ext_feature_isset(wiphy, feat)) |
| return true; |
| return false; |
| } |
| |
| static int |
| nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev, |
| void *request, struct nlattr **attrs, |
| bool is_sched_scan) |
| { |
| u8 *mac_addr, *mac_addr_mask; |
| u32 *flags; |
| enum nl80211_feature_flags randomness_flag; |
| |
| if (!attrs[NL80211_ATTR_SCAN_FLAGS]) |
| return 0; |
| |
| if (is_sched_scan) { |
| struct cfg80211_sched_scan_request *req = request; |
| |
| randomness_flag = wdev ? |
| NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR : |
| NL80211_FEATURE_ND_RANDOM_MAC_ADDR; |
| flags = &req->flags; |
| mac_addr = req->mac_addr; |
| mac_addr_mask = req->mac_addr_mask; |
| } else { |
| struct cfg80211_scan_request *req = request; |
| |
| randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; |
| flags = &req->flags; |
| mac_addr = req->mac_addr; |
| mac_addr_mask = req->mac_addr_mask; |
| } |
| |
| *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]); |
| |
| if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
| !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_LOW_SPAN, |
| NL80211_EXT_FEATURE_LOW_SPAN_SCAN) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_LOW_POWER, |
| NL80211_EXT_FEATURE_LOW_POWER_SCAN) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_HIGH_ACCURACY, |
| NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME, |
| NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP, |
| NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION, |
| NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE, |
| NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_RANDOM_SN, |
| NL80211_EXT_FEATURE_SCAN_RANDOM_SN) || |
| !nl80211_check_scan_feat(wiphy, *flags, |
| NL80211_SCAN_FLAG_MIN_PREQ_CONTENT, |
| NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT)) |
| return -EOPNOTSUPP; |
| |
| if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { |
| int err; |
| |
| if (!(wiphy->features & randomness_flag) || |
| (wdev && wdev->connected)) |
| return -EOPNOTSUPP; |
| |
| err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct cfg80211_scan_request *request; |
| struct nlattr *scan_freqs = NULL; |
| bool scan_freqs_khz = false; |
| struct nlattr *attr; |
| struct wiphy *wiphy; |
| int err, tmp, n_ssids = 0, n_channels, i; |
| size_t ie_len; |
| |
| wiphy = &rdev->wiphy; |
| |
| if (wdev->iftype == NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->scan) |
| return -EOPNOTSUPP; |
| |
| if (rdev->scan_req || rdev->scan_msg) |
| return -EBUSY; |
| |
| if (info->attrs[NL80211_ATTR_SCAN_FREQ_KHZ]) { |
| if (!wiphy_ext_feature_isset(wiphy, |
| NL80211_EXT_FEATURE_SCAN_FREQ_KHZ)) |
| return -EOPNOTSUPP; |
| scan_freqs = info->attrs[NL80211_ATTR_SCAN_FREQ_KHZ]; |
| scan_freqs_khz = true; |
| } else if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) |
| scan_freqs = info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]; |
| |
| if (scan_freqs) { |
| n_channels = validate_scan_freqs(scan_freqs); |
| if (!n_channels) |
| return -EINVAL; |
| } else { |
| n_channels = ieee80211_get_num_supported_channels(wiphy); |
| } |
| |
| if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) |
| nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) |
| n_ssids++; |
| |
| if (n_ssids > wiphy->max_scan_ssids) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_IE]) |
| ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| else |
| ie_len = 0; |
| |
| if (ie_len > wiphy->max_scan_ie_len) |
| return -EINVAL; |
| |
| request = kzalloc(sizeof(*request) |
| + sizeof(*request->ssids) * n_ssids |
| + sizeof(*request->channels) * n_channels |
| + ie_len, GFP_KERNEL); |
| if (!request) |
| return -ENOMEM; |
| |
| if (n_ssids) |
| request->ssids = (void *)&request->channels[n_channels]; |
| request->n_ssids = n_ssids; |
| if (ie_len) { |
| if (n_ssids) |
| request->ie = (void *)(request->ssids + n_ssids); |
| else |
| request->ie = (void *)(request->channels + n_channels); |
| } |
| |
| i = 0; |
| if (scan_freqs) { |
| /* user specified, bail out if channel not found */ |
| nla_for_each_nested(attr, scan_freqs, tmp) { |
| struct ieee80211_channel *chan; |
| int freq = nla_get_u32(attr); |
| |
| if (!scan_freqs_khz) |
| freq = MHZ_TO_KHZ(freq); |
| |
| chan = ieee80211_get_channel_khz(wiphy, freq); |
| if (!chan) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| /* ignore disabled channels */ |
| if (chan->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| request->channels[i] = chan; |
| i++; |
| } |
| } else { |
| enum nl80211_band band; |
| |
| /* all channels */ |
| for (band = 0; band < NUM_NL80211_BANDS; band++) { |
| int j; |
| |
| if (!wiphy->bands[band]) |
| continue; |
| for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
| struct ieee80211_channel *chan; |
| |
| chan = &wiphy->bands[band]->channels[j]; |
| |
| if (chan->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| request->channels[i] = chan; |
| i++; |
| } |
| } |
| } |
| |
| if (!i) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| request->n_channels = i; |
| |
| wdev_lock(wdev); |
| for (i = 0; i < request->n_channels; i++) { |
| struct ieee80211_channel *chan = request->channels[i]; |
| |
| /* if we can go off-channel to the target channel we're good */ |
| if (cfg80211_off_channel_oper_allowed(wdev, chan)) |
| continue; |
| |
| if (!cfg80211_wdev_on_sub_chan(wdev, chan, true)) { |
| wdev_unlock(wdev); |
| err = -EBUSY; |
| goto out_free; |
| } |
| } |
| wdev_unlock(wdev); |
| |
| i = 0; |
| if (n_ssids) { |
| nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { |
| if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| request->ssids[i].ssid_len = nla_len(attr); |
| memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
| i++; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| memcpy((void *)request->ie, |
| nla_data(info->attrs[NL80211_ATTR_IE]), |
| request->ie_len); |
| } |
| |
| for (i = 0; i < NUM_NL80211_BANDS; i++) |
| if (wiphy->bands[i]) |
| request->rates[i] = |
| (1 << wiphy->bands[i]->n_bitrates) - 1; |
| |
| if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { |
| nla_for_each_nested(attr, |
| info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], |
| tmp) { |
| enum nl80211_band band = nla_type(attr); |
| |
| if (band < 0 || band >= NUM_NL80211_BANDS) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| if (!wiphy->bands[band]) |
| continue; |
| |
| err = ieee80211_get_ratemask(wiphy->bands[band], |
| nla_data(attr), |
| nla_len(attr), |
| &request->rates[band]); |
| if (err) |
| goto out_free; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) { |
| request->duration = |
| nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]); |
| request->duration_mandatory = |
| nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]); |
| } |
| |
| err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs, |
| false); |
| if (err) |
| goto out_free; |
| |
| request->no_cck = |
| nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
| |
| /* Initial implementation used NL80211_ATTR_MAC to set the specific |
| * BSSID to scan for. This was problematic because that same attribute |
| * was already used for another purpose (local random MAC address). The |
| * NL80211_ATTR_BSSID attribute was added to fix this. For backwards |
| * compatibility with older userspace components, also use the |
| * NL80211_ATTR_MAC value here if it can be determined to be used for |
| * the specific BSSID use case instead of the random MAC address |
| * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use). |
| */ |
| if (info->attrs[NL80211_ATTR_BSSID]) |
| memcpy(request->bssid, |
| nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN); |
| else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) && |
| info->attrs[NL80211_ATTR_MAC]) |
| memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]), |
| ETH_ALEN); |
| else |
| eth_broadcast_addr(request->bssid); |
| |
| request->wdev = wdev; |
| request->wiphy = &rdev->wiphy; |
| request->scan_start = jiffies; |
| |
| rdev->scan_req = request; |
| err = cfg80211_scan(rdev); |
| |
| if (err) |
| goto out_free; |
| |
| nl80211_send_scan_start(rdev, wdev); |
| dev_hold(wdev->netdev); |
| |
| return 0; |
| |
| out_free: |
| rdev->scan_req = NULL; |
| kfree(request); |
| |
| return err; |
| } |
| |
| static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| if (!rdev->ops->abort_scan) |
| return -EOPNOTSUPP; |
| |
| if (rdev->scan_msg) |
| return 0; |
| |
| if (!rdev->scan_req) |
| return -ENOENT; |
| |
| rdev_abort_scan(rdev, wdev); |
| return 0; |
| } |
| |
| static int |
| nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans, |
| struct cfg80211_sched_scan_request *request, |
| struct nlattr **attrs) |
| { |
| int tmp, err, i = 0; |
| struct nlattr *attr; |
| |
| if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { |
| u32 interval; |
| |
| /* |
| * If scan plans are not specified, |
| * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this |
| * case one scan plan will be set with the specified scan |
| * interval and infinite number of iterations. |
| */ |
| interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); |
| if (!interval) |
| return -EINVAL; |
| |
| request->scan_plans[0].interval = |
| DIV_ROUND_UP(interval, MSEC_PER_SEC); |
| if (!request->scan_plans[0].interval) |
| return -EINVAL; |
| |
| if (request->scan_plans[0].interval > |
| wiphy->max_sched_scan_plan_interval) |
| request->scan_plans[0].interval = |
| wiphy->max_sched_scan_plan_interval; |
| |
| return 0; |
| } |
| |
| nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) { |
| struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1]; |
| |
| if (WARN_ON(i >= n_plans)) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(plan, |
| NL80211_SCHED_SCAN_PLAN_MAX, |
| attr, nl80211_plan_policy, |
| NULL); |
| if (err) |
| return err; |
| |
| if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]) |
| return -EINVAL; |
| |
| request->scan_plans[i].interval = |
| nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]); |
| if (!request->scan_plans[i].interval || |
| request->scan_plans[i].interval > |
| wiphy->max_sched_scan_plan_interval) |
| return -EINVAL; |
| |
| if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) { |
| request->scan_plans[i].iterations = |
| nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]); |
| if (!request->scan_plans[i].iterations || |
| (request->scan_plans[i].iterations > |
| wiphy->max_sched_scan_plan_iterations)) |
| return -EINVAL; |
| } else if (i < n_plans - 1) { |
| /* |
| * All scan plans but the last one must specify |
| * a finite number of iterations |
| */ |
| return -EINVAL; |
| } |
| |
| i++; |
| } |
| |
| /* |
| * The last scan plan must not specify the number of |
| * iterations, it is supposed to run infinitely |
| */ |
| if (request->scan_plans[n_plans - 1].iterations) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_parse_sched_scan_per_band_rssi(struct wiphy *wiphy, |
| struct cfg80211_match_set *match_sets, |
| struct nlattr *tb_band_rssi, |
| s32 rssi_thold) |
| { |
| struct nlattr *attr; |
| int i, tmp, ret = 0; |
| |
| if (!wiphy_ext_feature_isset(wiphy, |
| NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD)) { |
| if (tb_band_rssi) |
| ret = -EOPNOTSUPP; |
| else |
| for (i = 0; i < NUM_NL80211_BANDS; i++) |
| match_sets->per_band_rssi_thold[i] = |
| NL80211_SCAN_RSSI_THOLD_OFF; |
| return ret; |
| } |
| |
| for (i = 0; i < NUM_NL80211_BANDS; i++) |
| match_sets->per_band_rssi_thold[i] = rssi_thold; |
| |
| nla_for_each_nested(attr, tb_band_rssi, tmp) { |
| enum nl80211_band band = nla_type(attr); |
| |
| if (band < 0 || band >= NUM_NL80211_BANDS) |
| return -EINVAL; |
| |
| match_sets->per_band_rssi_thold[band] = nla_get_s32(attr); |
| } |
| |
| return 0; |
| } |
| |
| static struct cfg80211_sched_scan_request * |
| nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, |
| struct nlattr **attrs, int max_match_sets) |
| { |
| struct cfg80211_sched_scan_request *request; |
| struct nlattr *attr; |
| int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0; |
| enum nl80211_band band; |
| size_t ie_len; |
| struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
| s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; |
| |
| if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
| n_channels = validate_scan_freqs( |
| attrs[NL80211_ATTR_SCAN_FREQUENCIES]); |
| if (!n_channels) |
| return ERR_PTR(-EINVAL); |
| } else { |
| n_channels = ieee80211_get_num_supported_channels(wiphy); |
| } |
| |
| if (attrs[NL80211_ATTR_SCAN_SSIDS]) |
| nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], |
| tmp) |
| n_ssids++; |
| |
| if (n_ssids > wiphy->max_sched_scan_ssids) |
| return ERR_PTR(-EINVAL); |
| |
| /* |
| * First, count the number of 'real' matchsets. Due to an issue with |
| * the old implementation, matchsets containing only the RSSI attribute |
| * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' |
| * RSSI for all matchsets, rather than their own matchset for reporting |
| * all APs with a strong RSSI. This is needed to be compatible with |
| * older userspace that treated a matchset with only the RSSI as the |
| * global RSSI for all other matchsets - if there are other matchsets. |
| */ |
| if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
| nla_for_each_nested(attr, |
| attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
| tmp) { |
| struct nlattr *rssi; |
| |
| err = nla_parse_nested_deprecated(tb, |
| NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
| attr, |
| nl80211_match_policy, |
| NULL); |
| if (err) |
| return ERR_PTR(err); |
| |
| /* SSID and BSSID are mutually exclusive */ |
| if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] && |
| tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) |
| return ERR_PTR(-EINVAL); |
| |
| /* add other standalone attributes here */ |
| if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] || |
| tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) { |
| n_match_sets++; |
| continue; |
| } |
| rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; |
| if (rssi) |
| default_match_rssi = nla_get_s32(rssi); |
| } |
| } |
| |
| /* However, if there's no other matchset, add the RSSI one */ |
| if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) |
| n_match_sets = 1; |
| |
| if (n_match_sets > max_match_sets) |
| return ERR_PTR(-EINVAL); |
| |
| if (attrs[NL80211_ATTR_IE]) |
| ie_len = nla_len(attrs[NL80211_ATTR_IE]); |
| else |
| ie_len = 0; |
| |
| if (ie_len > wiphy->max_sched_scan_ie_len) |
| return ERR_PTR(-EINVAL); |
| |
| if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { |
| /* |
| * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since |
| * each scan plan already specifies its own interval |
| */ |
| if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
| return ERR_PTR(-EINVAL); |
| |
| nla_for_each_nested(attr, |
| attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) |
| n_plans++; |
| } else { |
| /* |
| * The scan interval attribute is kept for backward |
| * compatibility. If no scan plans are specified and sched scan |
| * interval is specified, one scan plan will be set with this |
| * scan interval and infinite number of iterations. |
| */ |
| if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
| return ERR_PTR(-EINVAL); |
| |
| n_plans = 1; |
| } |
| |
| if (!n_plans || n_plans > wiphy->max_sched_scan_plans) |
| return ERR_PTR(-EINVAL); |
| |
| if (!wiphy_ext_feature_isset( |
| wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) && |
| (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] || |
| attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST])) |
| return ERR_PTR(-EINVAL); |
| |
| request = kzalloc(sizeof(*request) |
| + sizeof(*request->ssids) * n_ssids |
| + sizeof(*request->match_sets) * n_match_sets |
| + sizeof(*request->scan_plans) * n_plans |
| + sizeof(*request->channels) * n_channels |
| + ie_len, GFP_KERNEL); |
| if (!request) |
| return ERR_PTR(-ENOMEM); |
| |
| if (n_ssids) |
| request->ssids = (void *)&request->channels[n_channels]; |
| request->n_ssids = n_ssids; |
| if (ie_len) { |
| if (n_ssids) |
| request->ie = (void *)(request->ssids + n_ssids); |
| else |
| request->ie = (void *)(request->channels + n_channels); |
| } |
| |
| if (n_match_sets) { |
| if (request->ie) |
| request->match_sets = (void *)(request->ie + ie_len); |
| else if (n_ssids) |
| request->match_sets = |
| (void *)(request->ssids + n_ssids); |
| else |
| request->match_sets = |
| (void *)(request->channels + n_channels); |
| } |
| request->n_match_sets = n_match_sets; |
| |
| if (n_match_sets) |
| request->scan_plans = (void *)(request->match_sets + |
| n_match_sets); |
| else if (request->ie) |
| request->scan_plans = (void *)(request->ie + ie_len); |
| else if (n_ssids) |
| request->scan_plans = (void *)(request->ssids + n_ssids); |
| else |
| request->scan_plans = (void *)(request->channels + n_channels); |
| |
| request->n_scan_plans = n_plans; |
| |
| i = 0; |
| if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
| /* user specified, bail out if channel not found */ |
| nla_for_each_nested(attr, |
| attrs[NL80211_ATTR_SCAN_FREQUENCIES], |
| tmp) { |
| struct ieee80211_channel *chan; |
| |
| chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); |
| |
| if (!chan) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| /* ignore disabled channels */ |
| if (chan->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| request->channels[i] = chan; |
| i++; |
| } |
| } else { |
| /* all channels */ |
| for (band = 0; band < NUM_NL80211_BANDS; band++) { |
| int j; |
| |
| if (!wiphy->bands[band]) |
| continue; |
| for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
| struct ieee80211_channel *chan; |
| |
| chan = &wiphy->bands[band]->channels[j]; |
| |
| if (chan->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| request->channels[i] = chan; |
| i++; |
| } |
| } |
| } |
| |
| if (!i) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| request->n_channels = i; |
| |
| i = 0; |
| if (n_ssids) { |
| nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], |
| tmp) { |
| if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| request->ssids[i].ssid_len = nla_len(attr); |
| memcpy(request->ssids[i].ssid, nla_data(attr), |
| nla_len(attr)); |
| i++; |
| } |
| } |
| |
| i = 0; |
| if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
| nla_for_each_nested(attr, |
| attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
| tmp) { |
| struct nlattr *ssid, *bssid, *rssi; |
| |
| err = nla_parse_nested_deprecated(tb, |
| NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
| attr, |
| nl80211_match_policy, |
| NULL); |
| if (err) |
| goto out_free; |
| ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
| bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]; |
| |
| if (!ssid && !bssid) { |
| i++; |
| continue; |
| } |
| |
| if (WARN_ON(i >= n_match_sets)) { |
| /* this indicates a programming error, |
| * the loop above should have verified |
| * things properly |
| */ |
| err = -EINVAL; |
| goto out_free; |
| } |
| |
| if (ssid) { |
| memcpy(request->match_sets[i].ssid.ssid, |
| nla_data(ssid), nla_len(ssid)); |
| request->match_sets[i].ssid.ssid_len = |
| nla_len(ssid); |
| } |
| if (bssid) |
| memcpy(request->match_sets[i].bssid, |
| nla_data(bssid), ETH_ALEN); |
| |
| /* special attribute - old implementation w/a */ |
| request->match_sets[i].rssi_thold = default_match_rssi; |
| rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; |
| if (rssi) |
| request->match_sets[i].rssi_thold = |
| nla_get_s32(rssi); |
| |
| /* Parse per band RSSI attribute */ |
| err = nl80211_parse_sched_scan_per_band_rssi(wiphy, |
| &request->match_sets[i], |
| tb[NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI], |
| request->match_sets[i].rssi_thold); |
| if (err) |
| goto out_free; |
| |
| i++; |
| } |
| |
| /* there was no other matchset, so the RSSI one is alone */ |
| if (i == 0 && n_match_sets) |
| request->match_sets[0].rssi_thold = default_match_rssi; |
| |
| request->min_rssi_thold = INT_MAX; |
| for (i = 0; i < n_match_sets; i++) |
| request->min_rssi_thold = |
| min(request->match_sets[i].rssi_thold, |
| request->min_rssi_thold); |
| } else { |
| request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; |
| } |
| |
| if (ie_len) { |
| request->ie_len = ie_len; |
| memcpy((void *)request->ie, |
| nla_data(attrs[NL80211_ATTR_IE]), |
| request->ie_len); |
| } |
| |
| err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true); |
| if (err) |
| goto out_free; |
| |
| if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY]) |
| request->delay = |
| nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]); |
| |
| if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) { |
| request->relative_rssi = nla_get_s8( |
| attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]); |
| request->relative_rssi_set = true; |
| } |
| |
| if (request->relative_rssi_set && |
| attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) { |
| struct nl80211_bss_select_rssi_adjust *rssi_adjust; |
| |
| rssi_adjust = nla_data( |
| attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]); |
| request->rssi_adjust.band = rssi_adjust->band; |
| request->rssi_adjust.delta = rssi_adjust->delta; |
| if (!is_band_valid(wiphy, request->rssi_adjust.band)) { |
| err = -EINVAL; |
| goto out_free; |
| } |
| } |
| |
| err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs); |
| if (err) |
| goto out_free; |
| |
| request->scan_start = jiffies; |
| |
| return request; |
| |
| out_free: |
| kfree(request); |
| return ERR_PTR(err); |
| } |
| |
| static int nl80211_start_sched_scan(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_sched_scan_request *sched_scan_req; |
| bool want_multi; |
| int err; |
| |
| if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start) |
| return -EOPNOTSUPP; |
| |
| want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI]; |
| err = cfg80211_sched_scan_req_possible(rdev, want_multi); |
| if (err) |
| return err; |
| |
| sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, |
| info->attrs, |
| rdev->wiphy.max_match_sets); |
| |
| err = PTR_ERR_OR_ZERO(sched_scan_req); |
| if (err) |
| goto out_err; |
| |
| /* leave request id zero for legacy request |
| * or if driver does not support multi-scheduled scan |
| */ |
| if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) |
| sched_scan_req->reqid = cfg80211_assign_cookie(rdev); |
| |
| err = rdev_sched_scan_start(rdev, dev, sched_scan_req); |
| if (err) |
| goto out_free; |
| |
| sched_scan_req->dev = dev; |
| sched_scan_req->wiphy = &rdev->wiphy; |
| |
| if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
| sched_scan_req->owner_nlportid = info->snd_portid; |
| |
| cfg80211_add_sched_scan_req(rdev, sched_scan_req); |
| |
| nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN); |
| return 0; |
| |
| out_free: |
| kfree(sched_scan_req); |
| out_err: |
| return err; |
| } |
| |
| static int nl80211_stop_sched_scan(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_sched_scan_request *req; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| u64 cookie; |
| |
| if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_COOKIE]) { |
| cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
| return __cfg80211_stop_sched_scan(rdev, cookie, false); |
| } |
| |
| req = list_first_or_null_rcu(&rdev->sched_scan_req_list, |
| struct cfg80211_sched_scan_request, |
| list); |
| if (!req || req->reqid || |
| (req->owner_nlportid && |
| req->owner_nlportid != info->snd_portid)) |
| return -ENOENT; |
| |
| return cfg80211_stop_sched_scan_req(rdev, req, false); |
| } |
| |
| static int nl80211_start_radar_detection(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_chan_def chandef; |
| enum nl80211_dfs_regions dfs_region; |
| unsigned int cac_time_ms; |
| int err = -EINVAL; |
| |
| flush_delayed_work(&rdev->dfs_update_channels_wk); |
| |
| wiphy_lock(wiphy); |
| |
| dfs_region = reg_get_dfs_region(wiphy); |
| if (dfs_region == NL80211_DFS_UNSET) |
| goto unlock; |
| |
| err = nl80211_parse_chandef(rdev, info, &chandef); |
| if (err) |
| goto unlock; |
| |
| err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype); |
| if (err < 0) |
| goto unlock; |
| |
| if (err == 0) { |
| err = -EINVAL; |
| goto unlock; |
| } |
| |
| if (!cfg80211_chandef_dfs_usable(wiphy, &chandef)) { |
| err = -EINVAL; |
| goto unlock; |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_RADAR_BACKGROUND])) { |
| err = cfg80211_start_background_radar_detection(rdev, wdev, |
| &chandef); |
| goto unlock; |
| } |
| |
| if (netif_carrier_ok(dev)) { |
| err = -EBUSY; |
| goto unlock; |
| } |
| |
| if (wdev->cac_started) { |
| err = -EBUSY; |
| goto unlock; |
| } |
| |
| /* CAC start is offloaded to HW and can't be started manually */ |
| if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) { |
| err = -EOPNOTSUPP; |
| goto unlock; |
| } |
| |
| if (!rdev->ops->start_radar_detection) { |
| err = -EOPNOTSUPP; |
| goto unlock; |
| } |
| |
| cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); |
| if (WARN_ON(!cac_time_ms)) |
| cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; |
| |
| err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms); |
| if (!err) { |
| wdev->links[0].ap.chandef = chandef; |
| wdev->cac_started = true; |
| wdev->cac_start_time = jiffies; |
| wdev->cac_time_ms = cac_time_ms; |
| } |
| unlock: |
| wiphy_unlock(wiphy); |
| |
| return err; |
| } |
| |
| static int nl80211_notify_radar_detection(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_chan_def chandef; |
| enum nl80211_dfs_regions dfs_region; |
| int err; |
| |
| dfs_region = reg_get_dfs_region(wiphy); |
| if (dfs_region == NL80211_DFS_UNSET) { |
| GENL_SET_ERR_MSG(info, |
| "DFS Region is not set. Unexpected Radar indication"); |
| return -EINVAL; |
| } |
| |
| err = nl80211_parse_chandef(rdev, info, &chandef); |
| if (err) { |
| GENL_SET_ERR_MSG(info, "Unable to extract chandef info"); |
| return err; |
| } |
| |
| err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype); |
| if (err < 0) { |
| GENL_SET_ERR_MSG(info, "chandef is invalid"); |
| return err; |
| } |
| |
| if (err == 0) { |
| GENL_SET_ERR_MSG(info, |
| "Unexpected Radar indication for chandef/iftype"); |
| return -EINVAL; |
| } |
| |
| /* Do not process this notification if radar is already detected |
| * by kernel on this channel, and return success. |
| */ |
| if (chandef.chan->dfs_state == NL80211_DFS_UNAVAILABLE) |
| return 0; |
| |
| cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_UNAVAILABLE); |
| |
| cfg80211_sched_dfs_chan_update(rdev); |
| |
| rdev->radar_chandef = chandef; |
| |
| /* Propagate this notification to other radios as well */ |
| queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk); |
| |
| return 0; |
| } |
| |
| static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_csa_settings params; |
| struct nlattr **csa_attrs = NULL; |
| int err; |
| bool need_new_beacon = false; |
| bool need_handle_dfs_flag = true; |
| int len, i; |
| u32 cs_count; |
| |
| if (!rdev->ops->channel_switch || |
| !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) |
| return -EOPNOTSUPP; |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| need_new_beacon = true; |
| /* For all modes except AP the handle_dfs flag needs to be |
| * supplied to tell the kernel that userspace will handle radar |
| * events when they happen. Otherwise a switch to a channel |
| * requiring DFS will be rejected. |
| */ |
| need_handle_dfs_flag = false; |
| |
| /* useless if AP is not running */ |
| if (!wdev->links[link_id].ap.beacon_interval) |
| return -ENOTCONN; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (!wdev->u.ibss.ssid_len) |
| return -ENOTCONN; |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| if (!wdev->u.mesh.id_len) |
| return -ENOTCONN; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| memset(¶ms, 0, sizeof(params)); |
| params.beacon_csa.ftm_responder = -1; |
| |
| if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || |
| !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) |
| return -EINVAL; |
| |
| /* only important for AP, IBSS and mesh create IEs internally */ |
| if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) |
| return -EINVAL; |
| |
| /* Even though the attribute is u32, the specification says |
| * u8, so let's make sure we don't overflow. |
| */ |
| cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); |
| if (cs_count > 255) |
| return -EINVAL; |
| |
| params.count = cs_count; |
| |
| if (!need_new_beacon) |
| goto skip_beacons; |
| |
| err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_after); |
| if (err) |
| goto free; |
| |
| csa_attrs = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*csa_attrs), |
| GFP_KERNEL); |
| if (!csa_attrs) { |
| err = -ENOMEM; |
| goto free; |
| } |
| |
| err = nla_parse_nested_deprecated(csa_attrs, NL80211_ATTR_MAX, |
| info->attrs[NL80211_ATTR_CSA_IES], |
| nl80211_policy, info->extack); |
| if (err) |
| goto free; |
| |
| err = nl80211_parse_beacon(rdev, csa_attrs, ¶ms.beacon_csa); |
| if (err) |
| goto free; |
| |
| if (!csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| len = nla_len(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]); |
| if (!len || (len % sizeof(u16))) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| params.n_counter_offsets_beacon = len / sizeof(u16); |
| if (rdev->wiphy.max_num_csa_counters && |
| (params.n_counter_offsets_beacon > |
| rdev->wiphy.max_num_csa_counters)) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| params.counter_offsets_beacon = |
| nla_data(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]); |
| |
| /* sanity checks - counters should fit and be the same */ |
| for (i = 0; i < params.n_counter_offsets_beacon; i++) { |
| u16 offset = params.counter_offsets_beacon[i]; |
| |
| if (offset >= params.beacon_csa.tail_len) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| if (params.beacon_csa.tail[offset] != params.count) { |
| err = -EINVAL; |
| goto free; |
| } |
| } |
| |
| if (csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]) { |
| len = nla_len(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]); |
| if (!len || (len % sizeof(u16))) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| params.n_counter_offsets_presp = len / sizeof(u16); |
| if (rdev->wiphy.max_num_csa_counters && |
| (params.n_counter_offsets_presp > |
| rdev->wiphy.max_num_csa_counters)) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| params.counter_offsets_presp = |
| nla_data(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]); |
| |
| /* sanity checks - counters should fit and be the same */ |
| for (i = 0; i < params.n_counter_offsets_presp; i++) { |
| u16 offset = params.counter_offsets_presp[i]; |
| |
| if (offset >= params.beacon_csa.probe_resp_len) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| if (params.beacon_csa.probe_resp[offset] != |
| params.count) { |
| err = -EINVAL; |
| goto free; |
| } |
| } |
| } |
| |
| skip_beacons: |
| err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
| if (err) |
| goto free; |
| |
| if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef, |
| wdev->iftype)) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| err = cfg80211_chandef_dfs_required(wdev->wiphy, |
| ¶ms.chandef, |
| wdev->iftype); |
| if (err < 0) |
| goto free; |
| |
| if (err > 0) { |
| params.radar_required = true; |
| if (need_handle_dfs_flag && |
| !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) { |
| err = -EINVAL; |
| goto free; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) |
| params.block_tx = true; |
| |
| if (info->attrs[NL80211_ATTR_PUNCT_BITMAP]) { |
| err = nl80211_parse_punct_bitmap(rdev, info, |
| ¶ms.chandef, |
| ¶ms.punct_bitmap); |
| if (err) |
| goto free; |
| } |
| |
| wdev_lock(wdev); |
| err = rdev_channel_switch(rdev, dev, ¶ms); |
| wdev_unlock(wdev); |
| |
| free: |
| kfree(params.beacon_after.mbssid_ies); |
| kfree(params.beacon_csa.mbssid_ies); |
| kfree(csa_attrs); |
| return err; |
| } |
| |
| static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
| u32 seq, int flags, |
| struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, |
| struct cfg80211_internal_bss *intbss) |
| { |
| struct cfg80211_bss *res = &intbss->pub; |
| const struct cfg80211_bss_ies *ies; |
| unsigned int link_id; |
| void *hdr; |
| struct nlattr *bss; |
| |
| ASSERT_WDEV_LOCK(wdev); |
| |
| hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
| NL80211_CMD_NEW_SCAN_RESULTS); |
| if (!hdr) |
| return -1; |
| |
| genl_dump_check_consistent(cb, hdr); |
| |
| if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) |
| goto nla_put_failure; |
| if (wdev->netdev && |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) |
| goto nla_put_failure; |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| bss = nla_nest_start_noflag(msg, NL80211_ATTR_BSS); |
| if (!bss) |
| goto nla_put_failure; |
| if ((!is_zero_ether_addr(res->bssid) && |
| nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
| goto nla_put_failure; |
| |
| rcu_read_lock(); |
| /* indicate whether we have probe response data or not */ |
| if (rcu_access_pointer(res->proberesp_ies) && |
| nla_put_flag(msg, NL80211_BSS_PRESP_DATA)) |
| goto fail_unlock_rcu; |
| |
| /* this pointer prefers to be pointed to probe response data |
| * but is always valid |
| */ |
| ies = rcu_dereference(res->ies); |
| if (ies) { |
| if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf, |
| NL80211_BSS_PAD)) |
| goto fail_unlock_rcu; |
| if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, |
| ies->len, ies->data)) |
| goto fail_unlock_rcu; |
| } |
| |
| /* and this pointer is always (unless driver didn't know) beacon data */ |
| ies = rcu_dereference(res->beacon_ies); |
| if (ies && ies->from_beacon) { |
| if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf, |
| NL80211_BSS_PAD)) |
| goto fail_unlock_rcu; |
| if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, |
| ies->len, ies->data)) |
| goto fail_unlock_rcu; |
| } |
| rcu_read_unlock(); |
| |
| if (res->beacon_interval && |
| nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) |
| goto nla_put_failure; |
| if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || |
| nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || |
| nla_put_u32(msg, NL80211_BSS_FREQUENCY_OFFSET, |
| res->channel->freq_offset) || |
| nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || |
| nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, |
| jiffies_to_msecs(jiffies - intbss->ts))) |
| goto nla_put_failure; |
| |
| if (intbss->parent_tsf && |
| (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF, |
| intbss->parent_tsf, NL80211_BSS_PAD) || |
| nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN, |
| intbss->parent_bssid))) |
| goto nla_put_failure; |
| |
| if (intbss->ts_boottime && |
| nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME, |
| intbss->ts_boottime, NL80211_BSS_PAD)) |
| goto nla_put_failure; |
| |
| if (!nl80211_put_signal(msg, intbss->pub.chains, |
| intbss->pub.chain_signal, |
| NL80211_BSS_CHAIN_SIGNAL)) |
| goto nla_put_failure; |
| |
| switch (rdev->wiphy.signal_type) { |
| case CFG80211_SIGNAL_TYPE_MBM: |
| if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
| goto nla_put_failure; |
| break; |
| case CFG80211_SIGNAL_TYPE_UNSPEC: |
| if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
| goto nla_put_failure; |
| break; |
| default: |
| break; |
| } |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_STATION: |
| for_each_valid_link(wdev, link_id) { |
| if (intbss == wdev->links[link_id].client.current_bss && |
| (nla_put_u32(msg, NL80211_BSS_STATUS, |
| NL80211_BSS_STATUS_ASSOCIATED) || |
| (wdev->valid_links && |
| (nla_put_u8(msg, NL80211_BSS_MLO_LINK_ID, |
| link_id) || |
| nla_put(msg, NL80211_BSS_MLD_ADDR, ETH_ALEN, |
| wdev->u.client.connected_addr))))) |
| goto nla_put_failure; |
| } |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (intbss == wdev->u.ibss.current_bss && |
| nla_put_u32(msg, NL80211_BSS_STATUS, |
| NL80211_BSS_STATUS_IBSS_JOINED)) |
| goto nla_put_failure; |
| break; |
| default: |
| break; |
| } |
| |
| nla_nest_end(msg, bss); |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| fail_unlock_rcu: |
| rcu_read_unlock(); |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) |
| { |
| struct cfg80211_registered_device *rdev; |
| struct cfg80211_internal_bss *scan; |
| struct wireless_dev *wdev; |
| int start = cb->args[2], idx = 0; |
| int err; |
| |
| err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL); |
| if (err) |
| return err; |
| /* nl80211_prepare_wdev_dump acquired it in the successful case */ |
| __acquire(&rdev->wiphy.mtx); |
| |
| wdev_lock(wdev); |
| spin_lock_bh(&rdev->bss_lock); |
| |
| /* |
| * dump_scan will be called multiple times to break up the scan results |
| * into multiple messages. It is unlikely that any more bss-es will be |
| * expired after the first call, so only call only call this on the |
| * first dump_scan invocation. |
| */ |
| if (start == 0) |
| cfg80211_bss_expire(rdev); |
| |
| cb->seq = rdev->bss_generation; |
| |
| list_for_each_entry(scan, &rdev->bss_list, list) { |
| if (++idx <= start) |
| continue; |
| if (nl80211_send_bss(skb, cb, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| rdev, wdev, scan) < 0) { |
| idx--; |
| break; |
| } |
| } |
| |
| spin_unlock_bh(&rdev->bss_lock); |
| wdev_unlock(wdev); |
| |
| cb->args[2] = idx; |
| wiphy_unlock(&rdev->wiphy); |
| |
| return skb->len; |
| } |
| |
| static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
| int flags, struct net_device *dev, |
| bool allow_radio_stats, |
| struct survey_info *survey) |
| { |
| void *hdr; |
| struct nlattr *infoattr; |
| |
| /* skip radio stats if userspace didn't request them */ |
| if (!survey->channel && !allow_radio_stats) |
| return 0; |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, |
| NL80211_CMD_NEW_SURVEY_RESULTS); |
| if (!hdr) |
| return -ENOMEM; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
| goto nla_put_failure; |
| |
| infoattr = nla_nest_start_noflag(msg, NL80211_ATTR_SURVEY_INFO); |
| if (!infoattr) |
| goto nla_put_failure; |
| |
| if (survey->channel && |
| nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
| survey->channel->center_freq)) |
| goto nla_put_failure; |
| |
| if (survey->channel && survey->channel->freq_offset && |
| nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY_OFFSET, |
| survey->channel->freq_offset)) |
| goto nla_put_failure; |
| |
| if ((survey->filled & SURVEY_INFO_NOISE_DBM) && |
| nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_IN_USE) && |
| nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME, |
| survey->time, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_BUSY) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY, |
| survey->time_busy, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY, |
| survey->time_ext_busy, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_RX) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX, |
| survey->time_rx, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_TX) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX, |
| survey->time_tx, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_SCAN) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN, |
| survey->time_scan, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| if ((survey->filled & SURVEY_INFO_TIME_BSS_RX) && |
| nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BSS_RX, |
| survey->time_bss_rx, NL80211_SURVEY_INFO_PAD)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, infoattr); |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) |
| { |
| struct nlattr **attrbuf; |
| struct survey_info survey; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| int survey_idx = cb->args[2]; |
| int res; |
| bool radio_stats; |
| |
| attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL); |
| if (!attrbuf) |
| return -ENOMEM; |
| |
| res = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, attrbuf); |
| if (res) { |
| kfree(attrbuf); |
| return res; |
| } |
| /* nl80211_prepare_wdev_dump acquired it in the successful case */ |
| __acquire(&rdev->wiphy.mtx); |
| |
| /* prepare_wdev_dump parsed the attributes */ |
| radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS]; |
| |
| if (!wdev->netdev) { |
| res = -EINVAL; |
| goto out_err; |
| } |
| |
| if (!rdev->ops->dump_survey) { |
| res = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| while (1) { |
| wdev_lock(wdev); |
| res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); |
| wdev_unlock(wdev); |
| if (res == -ENOENT) |
| break; |
| if (res) |
| goto out_err; |
| |
| /* don't send disabled channels, but do send non-channel data */ |
| if (survey.channel && |
| survey.channel->flags & IEEE80211_CHAN_DISABLED) { |
| survey_idx++; |
| continue; |
| } |
| |
| if (nl80211_send_survey(skb, |
| NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| wdev->netdev, radio_stats, &survey) < 0) |
| goto out; |
| survey_idx++; |
| } |
| |
| out: |
| cb->args[2] = survey_idx; |
| res = skb->len; |
| out_err: |
| kfree(attrbuf); |
| wiphy_unlock(&rdev->wiphy); |
| return res; |
| } |
| |
| static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
| { |
| return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | |
| NL80211_WPA_VERSION_2 | |
| NL80211_WPA_VERSION_3)); |
| } |
| |
| static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct ieee80211_channel *chan; |
| const u8 *bssid, *ssid; |
| int err, ssid_len; |
| enum nl80211_auth_type auth_type; |
| struct key_parse key; |
| bool local_state_change; |
| struct cfg80211_auth_request req = {}; |
| u32 freq; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_SSID]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
| return -EINVAL; |
| |
| err = nl80211_parse_key(info, &key); |
| if (err) |
| return err; |
| |
| if (key.idx >= 0) { |
| if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
| return -EINVAL; |
| if (!key.p.key || !key.p.key_len) |
| return -EINVAL; |
| if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || |
| key.p.key_len != WLAN_KEY_LEN_WEP40) && |
| (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || |
| key.p.key_len != WLAN_KEY_LEN_WEP104)) |
| return -EINVAL; |
| if (key.idx > 3) |
| return -EINVAL; |
| } else { |
| key.p.key_len = 0; |
| key.p.key = NULL; |
| } |
| |
| if (key.idx >= 0) { |
| int i; |
| bool ok = false; |
| |
| for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { |
| if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { |
| ok = true; |
| break; |
| } |
| } |
| if (!ok) |
| return -EINVAL; |
| } |
| |
| if (!rdev->ops->auth) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| freq = MHZ_TO_KHZ(nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]) |
| freq += |
| nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]); |
| |
| chan = nl80211_get_valid_chan(&rdev->wiphy, freq); |
| if (!chan) |
| return -EINVAL; |
| |
| ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
| if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
| return -EINVAL; |
| |
| if ((auth_type == NL80211_AUTHTYPE_SAE || |
| auth_type == NL80211_AUTHTYPE_FILS_SK || |
| auth_type == NL80211_AUTHTYPE_FILS_SK_PFS || |
| auth_type == NL80211_AUTHTYPE_FILS_PK) && |
| !info->attrs[NL80211_ATTR_AUTH_DATA]) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_AUTH_DATA]) { |
| if (auth_type != NL80211_AUTHTYPE_SAE && |
| auth_type != NL80211_AUTHTYPE_FILS_SK && |
| auth_type != NL80211_AUTHTYPE_FILS_SK_PFS && |
| auth_type != NL80211_AUTHTYPE_FILS_PK) |
| return -EINVAL; |
| req.auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]); |
| req.auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]); |
| } |
| |
| local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
| |
| /* |
| * Since we no longer track auth state, ignore |
| * requests to only change local state. |
| */ |
| if (local_state_change) |
| return 0; |
| |
| req.auth_type = auth_type; |
| req.key = key.p.key; |
| req.key_len = key.p.key_len; |
| req.key_idx = key.idx; |
| req.link_id = nl80211_link_id_or_invalid(info->attrs); |
| if (req.link_id >= 0) { |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_MLO)) |
| return -EINVAL; |
| if (!info->attrs[NL80211_ATTR_MLD_ADDR]) |
| return -EINVAL; |
| req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| if (!is_valid_ether_addr(req.ap_mld_addr)) |
| return -EINVAL; |
| } |
| |
| req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
| IEEE80211_BSS_TYPE_ESS, |
| IEEE80211_PRIVACY_ANY); |
| if (!req.bss) |
| return -ENOENT; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| err = cfg80211_mlme_auth(rdev, dev, &req); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| cfg80211_put_bss(&rdev->wiphy, req.bss); |
| |
| return err; |
| } |
| |
| static int validate_pae_over_nl80211(struct cfg80211_registered_device *rdev, |
| struct genl_info *info) |
| { |
| if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
| GENL_SET_ERR_MSG(info, "SOCKET_OWNER not set"); |
| return -EINVAL; |
| } |
| |
| if (!rdev->ops->tx_control_port || |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211)) |
| return -EOPNOTSUPP; |
| |
| return 0; |
| } |
| |
| static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
| struct genl_info *info, |
| struct cfg80211_crypto_settings *settings, |
| int cipher_limit) |
| { |
| memset(settings, 0, sizeof(*settings)); |
| |
| settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
| |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
| u16 proto; |
| |
| proto = nla_get_u16( |
| info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); |
| settings->control_port_ethertype = cpu_to_be16(proto); |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
| proto != ETH_P_PAE) |
| return -EINVAL; |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) |
| settings->control_port_no_encrypt = true; |
| } else |
| settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); |
| |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) { |
| int r = validate_pae_over_nl80211(rdev, info); |
| |
| if (r < 0) |
| return r; |
| |
| settings->control_port_over_nl80211 = true; |
| |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_PREAUTH]) |
| settings->control_port_no_preauth = true; |
| } |
| |
| if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
| void *data; |
| int len, i; |
| |
| data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); |
| len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); |
| settings->n_ciphers_pairwise = len / sizeof(u32); |
| |
| if (len % sizeof(u32)) |
| return -EINVAL; |
| |
| if (settings->n_ciphers_pairwise > cipher_limit) |
| return -EINVAL; |
| |
| memcpy(settings->ciphers_pairwise, data, len); |
| |
| for (i = 0; i < settings->n_ciphers_pairwise; i++) |
| if (!cfg80211_supported_cipher_suite( |
| &rdev->wiphy, |
| settings->ciphers_pairwise[i])) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { |
| settings->cipher_group = |
| nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); |
| if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
| settings->cipher_group)) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { |
| settings->wpa_versions = |
| nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); |
| if (!nl80211_valid_wpa_versions(settings->wpa_versions)) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_AKM_SUITES]) { |
| void *data; |
| int len; |
| |
| data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); |
| len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); |
| settings->n_akm_suites = len / sizeof(u32); |
| |
| if (len % sizeof(u32)) |
| return -EINVAL; |
| |
| if (settings->n_akm_suites > rdev->wiphy.max_num_akm_suites) |
| return -EINVAL; |
| |
| memcpy(settings->akm_suites, data, len); |
| } |
| |
| if (info->attrs[NL80211_ATTR_PMK]) { |
| if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN) |
| return -EINVAL; |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK) && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK)) |
| return -EINVAL; |
| settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_SAE_PASSWORD]) { |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_SAE_OFFLOAD) && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_SAE_OFFLOAD_AP)) |
| return -EINVAL; |
| settings->sae_pwd = |
| nla_data(info->attrs[NL80211_ATTR_SAE_PASSWORD]); |
| settings->sae_pwd_len = |
| nla_len(info->attrs[NL80211_ATTR_SAE_PASSWORD]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_SAE_PWE]) |
| settings->sae_pwe = |
| nla_get_u8(info->attrs[NL80211_ATTR_SAE_PWE]); |
| else |
| settings->sae_pwe = NL80211_SAE_PWE_UNSPECIFIED; |
| |
| return 0; |
| } |
| |
| static struct cfg80211_bss *nl80211_assoc_bss(struct cfg80211_registered_device *rdev, |
| const u8 *ssid, int ssid_len, |
| struct nlattr **attrs) |
| { |
| struct ieee80211_channel *chan; |
| struct cfg80211_bss *bss; |
| const u8 *bssid; |
| u32 freq; |
| |
| if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_WIPHY_FREQ]) |
| return ERR_PTR(-EINVAL); |
| |
| bssid = nla_data(attrs[NL80211_ATTR_MAC]); |
| |
| freq = MHZ_TO_KHZ(nla_get_u32(attrs[NL80211_ATTR_WIPHY_FREQ])); |
| if (attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]) |
| freq += nla_get_u32(attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]); |
| |
| chan = nl80211_get_valid_chan(&rdev->wiphy, freq); |
| if (!chan) |
| return ERR_PTR(-EINVAL); |
| |
| bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, |
| ssid, ssid_len, |
| IEEE80211_BSS_TYPE_ESS, |
| IEEE80211_PRIVACY_ANY); |
| if (!bss) |
| return ERR_PTR(-ENOENT); |
| |
| return bss; |
| } |
| |
| static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_assoc_request req = {}; |
| struct nlattr **attrs = NULL; |
| const u8 *ap_addr, *ssid; |
| unsigned int link_id; |
| int err, ssid_len; |
| |
| if (dev->ieee80211_ptr->conn_owner_nlportid && |
| dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid) |
| return -EPERM; |
| |
| if (!info->attrs[NL80211_ATTR_SSID]) |
| return -EINVAL; |
| |
| if (!rdev->ops->assoc) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| |
| if (cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, |
| req.ie, req.ie_len)) { |
| GENL_SET_ERR_MSG(info, |
| "non-inheritance makes no sense"); |
| return -EINVAL; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_USE_MFP]) { |
| enum nl80211_mfp mfp = |
| nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
| if (mfp == NL80211_MFP_REQUIRED) |
| req.use_mfp = true; |
| else if (mfp != NL80211_MFP_NO) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
| req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
| req.flags |= ASSOC_REQ_DISABLE_HT; |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
| memcpy(&req.ht_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
| sizeof(req.ht_capa_mask)); |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
| return -EINVAL; |
| memcpy(&req.ht_capa, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
| sizeof(req.ht_capa)); |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
| req.flags |= ASSOC_REQ_DISABLE_VHT; |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HE])) |
| req.flags |= ASSOC_REQ_DISABLE_HE; |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_EHT])) |
| req.flags |= ASSOC_REQ_DISABLE_EHT; |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
| memcpy(&req.vht_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), |
| sizeof(req.vht_capa_mask)); |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
| return -EINVAL; |
| memcpy(&req.vht_capa, |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), |
| sizeof(req.vht_capa)); |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
| if (!((rdev->wiphy.features & |
| NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) && |
| (rdev->wiphy.features & NL80211_FEATURE_QUIET)) && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_RRM)) |
| return -EINVAL; |
| req.flags |= ASSOC_REQ_USE_RRM; |
| } |
| |
| if (info->attrs[NL80211_ATTR_FILS_KEK]) { |
| req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]); |
| req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]); |
| if (!info->attrs[NL80211_ATTR_FILS_NONCES]) |
| return -EINVAL; |
| req.fils_nonces = |
| nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK]) { |
| if (!info->attrs[NL80211_ATTR_S1G_CAPABILITY]) |
| return -EINVAL; |
| memcpy(&req.s1g_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK]), |
| sizeof(req.s1g_capa_mask)); |
| } |
| |
| if (info->attrs[NL80211_ATTR_S1G_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK]) |
| return -EINVAL; |
| memcpy(&req.s1g_capa, |
| nla_data(info->attrs[NL80211_ATTR_S1G_CAPABILITY]), |
| sizeof(req.s1g_capa)); |
| } |
| |
| req.link_id = nl80211_link_id_or_invalid(info->attrs); |
| |
| if (info->attrs[NL80211_ATTR_MLO_LINKS]) { |
| unsigned int attrsize = NUM_NL80211_ATTR * sizeof(*attrs); |
| struct nlattr *link; |
| int rem = 0; |
| |
| if (req.link_id < 0) |
| return -EINVAL; |
| |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_MLO)) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_MAC] || |
| info->attrs[NL80211_ATTR_WIPHY_FREQ] || |
| !info->attrs[NL80211_ATTR_MLD_ADDR]) |
| return -EINVAL; |
| |
| req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| ap_addr = req.ap_mld_addr; |
| |
| attrs = kzalloc(attrsize, GFP_KERNEL); |
| if (!attrs) |
| return -ENOMEM; |
| |
| nla_for_each_nested(link, |
| info->attrs[NL80211_ATTR_MLO_LINKS], |
| rem) { |
| memset(attrs, 0, attrsize); |
| |
| nla_parse_nested(attrs, NL80211_ATTR_MAX, |
| link, NULL, NULL); |
| |
| if (!attrs[NL80211_ATTR_MLO_LINK_ID]) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| link_id = nla_get_u8(attrs[NL80211_ATTR_MLO_LINK_ID]); |
| /* cannot use the same link ID again */ |
| if (req.links[link_id].bss) { |
| err = -EINVAL; |
| goto free; |
| } |
| req.links[link_id].bss = |
| nl80211_assoc_bss(rdev, ssid, ssid_len, attrs); |
| if (IS_ERR(req.links[link_id].bss)) { |
| err = PTR_ERR(req.links[link_id].bss); |
| req.links[link_id].bss = NULL; |
| goto free; |
| } |
| |
| if (attrs[NL80211_ATTR_IE]) { |
| req.links[link_id].elems = |
| nla_data(attrs[NL80211_ATTR_IE]); |
| req.links[link_id].elems_len = |
| nla_len(attrs[NL80211_ATTR_IE]); |
| |
| if (cfg80211_find_elem(WLAN_EID_FRAGMENT, |
| req.links[link_id].elems, |
| req.links[link_id].elems_len)) { |
| GENL_SET_ERR_MSG(info, |
| "cannot deal with fragmentation"); |
| err = -EINVAL; |
| goto free; |
| } |
| |
| if (cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, |
| req.links[link_id].elems, |
| req.links[link_id].elems_len)) { |
| GENL_SET_ERR_MSG(info, |
| "cannot deal with non-inheritance"); |
| err = -EINVAL; |
| goto free; |
| } |
| } |
| } |
| |
| if (!req.links[req.link_id].bss) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| if (req.links[req.link_id].elems_len) { |
| GENL_SET_ERR_MSG(info, |
| "cannot have per-link elems on assoc link"); |
| err = -EINVAL; |
| goto free; |
| } |
| |
| kfree(attrs); |
| attrs = NULL; |
| } else { |
| if (req.link_id >= 0) |
| return -EINVAL; |
| |
| req.bss = nl80211_assoc_bss(rdev, ssid, ssid_len, info->attrs); |
| if (IS_ERR(req.bss)) |
| return PTR_ERR(req.bss); |
| ap_addr = req.bss->bssid; |
| } |
| |
| err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); |
| if (!err) { |
| wdev_lock(dev->ieee80211_ptr); |
| |
| err = cfg80211_mlme_assoc(rdev, dev, &req); |
| |
| if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
| dev->ieee80211_ptr->conn_owner_nlportid = |
| info->snd_portid; |
| memcpy(dev->ieee80211_ptr->disconnect_bssid, |
| ap_addr, ETH_ALEN); |
| } |
| |
| wdev_unlock(dev->ieee80211_ptr); |
| } |
| |
| free: |
| for (link_id = 0; link_id < ARRAY_SIZE(req.links); link_id++) |
| cfg80211_put_bss(&rdev->wiphy, req.links[link_id].bss); |
| cfg80211_put_bss(&rdev->wiphy, req.bss); |
| kfree(attrs); |
| |
| return err; |
| } |
| |
| static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| const u8 *ie = NULL, *bssid; |
| int ie_len = 0, err; |
| u16 reason_code; |
| bool local_state_change; |
| |
| if (dev->ieee80211_ptr->conn_owner_nlportid && |
| dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid) |
| return -EPERM; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
| return -EINVAL; |
| |
| if (!rdev->ops->deauth) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
| if (reason_code == 0) { |
| /* Reason Code 0 is reserved */ |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
| local_state_change); |
| wdev_unlock(dev->ieee80211_ptr); |
| return err; |
| } |
| |
| static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| const u8 *ie = NULL, *bssid; |
| int ie_len = 0, err; |
| u16 reason_code; |
| bool local_state_change; |
| |
| if (dev->ieee80211_ptr->conn_owner_nlportid && |
| dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid) |
| return -EPERM; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
| return -EINVAL; |
| |
| if (!rdev->ops->disassoc) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
| if (reason_code == 0) { |
| /* Reason Code 0 is reserved */ |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
| local_state_change); |
| wdev_unlock(dev->ieee80211_ptr); |
| return err; |
| } |
| |
| static bool |
| nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, |
| int mcast_rate[NUM_NL80211_BANDS], |
| int rateval) |
| { |
| struct wiphy *wiphy = &rdev->wiphy; |
| bool found = false; |
| int band, i; |
| |
| for (band = 0; band < NUM_NL80211_BANDS; band++) { |
| struct ieee80211_supported_band *sband; |
| |
| sband = wiphy->bands[band]; |
| if (!sband) |
| continue; |
| |
| for (i = 0; i < sband->n_bitrates; i++) { |
| if (sband->bitrates[i].bitrate == rateval) { |
| mcast_rate[band] = i + 1; |
| found = true; |
| break; |
| } |
| } |
| } |
| |
| return found; |
| } |
| |
| static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_ibss_params ibss; |
| struct wiphy *wiphy; |
| struct cfg80211_cached_keys *connkeys = NULL; |
| int err; |
| |
| memset(&ibss, 0, sizeof(ibss)); |
| |
| if (!info->attrs[NL80211_ATTR_SSID] || |
| !nla_len(info->attrs[NL80211_ATTR_SSID])) |
| return -EINVAL; |
| |
| ibss.beacon_interval = 100; |
| |
| if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) |
| ibss.beacon_interval = |
| nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
| |
| err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC, |
| ibss.beacon_interval); |
| if (err) |
| return err; |
| |
| if (!rdev->ops->join_ibss) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
| return -EOPNOTSUPP; |
| |
| wiphy = &rdev->wiphy; |
| |
| if (info->attrs[NL80211_ATTR_MAC]) { |
| ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (!is_valid_ether_addr(ibss.bssid)) |
| return -EINVAL; |
| } |
| ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
| if (err) |
| return err; |
| |
| if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, |
| NL80211_IFTYPE_ADHOC)) |
| return -EINVAL; |
| |
| switch (ibss.chandef.width) { |
| case NL80211_CHAN_WIDTH_5: |
| case NL80211_CHAN_WIDTH_10: |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| break; |
| case NL80211_CHAN_WIDTH_20: |
| case NL80211_CHAN_WIDTH_40: |
| if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) |
| return -EINVAL; |
| break; |
| case NL80211_CHAN_WIDTH_80: |
| case NL80211_CHAN_WIDTH_80P80: |
| case NL80211_CHAN_WIDTH_160: |
| if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) |
| return -EINVAL; |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_VHT_IBSS)) |
| return -EINVAL; |
| break; |
| case NL80211_CHAN_WIDTH_320: |
| return -EINVAL; |
| default: |
| return -EINVAL; |
| } |
| |
| ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
| ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
| |
| if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
| u8 *rates = |
| nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| int n_rates = |
| nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| struct ieee80211_supported_band *sband = |
| wiphy->bands[ibss.chandef.chan->band]; |
| |
| err = ieee80211_get_ratemask(sband, rates, n_rates, |
| &ibss.basic_rates); |
| if (err) |
| return err; |
| } |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
| memcpy(&ibss.ht_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
| sizeof(ibss.ht_capa_mask)); |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
| return -EINVAL; |
| memcpy(&ibss.ht_capa, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
| sizeof(ibss.ht_capa)); |
| } |
| |
| if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
| !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, |
| nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) |
| return -EINVAL; |
| |
| if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
| bool no_ht = false; |
| |
| connkeys = nl80211_parse_connkeys(rdev, info, &no_ht); |
| if (IS_ERR(connkeys)) |
| return PTR_ERR(connkeys); |
| |
| if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
| no_ht) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| } |
| |
| ibss.control_port = |
| nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); |
| |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) { |
| int r = validate_pae_over_nl80211(rdev, info); |
| |
| if (r < 0) { |
| kfree_sensitive(connkeys); |
| return r; |
| } |
| |
| ibss.control_port_over_nl80211 = true; |
| } |
| |
| ibss.userspace_handles_dfs = |
| nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); |
| |
| wdev_lock(dev->ieee80211_ptr); |
| err = __cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
| if (err) |
| kfree_sensitive(connkeys); |
| else if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
| dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid; |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return err; |
| } |
| |
| static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| if (!rdev->ops->leave_ibss) |
| return -EOPNOTSUPP; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
| return -EOPNOTSUPP; |
| |
| return cfg80211_leave_ibss(rdev, dev, false); |
| } |
| |
| static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| int mcast_rate[NUM_NL80211_BANDS]; |
| u32 nla_rate; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->set_mcast_rate) |
| return -EOPNOTSUPP; |
| |
| memset(mcast_rate, 0, sizeof(mcast_rate)); |
| |
| if (!info->attrs[NL80211_ATTR_MCAST_RATE]) |
| return -EINVAL; |
| |
| nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); |
| if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) |
| return -EINVAL; |
| |
| return rdev_set_mcast_rate(rdev, dev, mcast_rate); |
| } |
| |
| static struct sk_buff * |
| __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, int approxlen, |
| u32 portid, u32 seq, enum nl80211_commands cmd, |
| enum nl80211_attrs attr, |
| const struct nl80211_vendor_cmd_info *info, |
| gfp_t gfp) |
| { |
| struct sk_buff *skb; |
| void *hdr; |
| struct nlattr *data; |
| |
| skb = nlmsg_new(approxlen + 100, gfp); |
| if (!skb) |
| return NULL; |
| |
| hdr = nl80211hdr_put(skb, portid, seq, 0, cmd); |
| if (!hdr) { |
| kfree_skb(skb); |
| return NULL; |
| } |
| |
| if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
| goto nla_put_failure; |
| |
| if (info) { |
| if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID, |
| info->vendor_id)) |
| goto nla_put_failure; |
| if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD, |
| info->subcmd)) |
| goto nla_put_failure; |
| } |
| |
| if (wdev) { |
| if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV, |
| wdev_id(wdev), NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| if (wdev->netdev && |
| nla_put_u32(skb, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) |
| goto nla_put_failure; |
| } |
| |
| data = nla_nest_start_noflag(skb, attr); |
| if (!data) |
| goto nla_put_failure; |
| |
| ((void **)skb->cb)[0] = rdev; |
| ((void **)skb->cb)[1] = hdr; |
| ((void **)skb->cb)[2] = data; |
| |
| return skb; |
| |
| nla_put_failure: |
| kfree_skb(skb); |
| return NULL; |
| } |
| |
| struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_commands cmd, |
| enum nl80211_attrs attr, |
| unsigned int portid, |
| int vendor_event_idx, |
| int approxlen, gfp_t gfp) |
| { |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| const struct nl80211_vendor_cmd_info *info; |
| |
| switch (cmd) { |
| case NL80211_CMD_TESTMODE: |
| if (WARN_ON(vendor_event_idx != -1)) |
| return NULL; |
| info = NULL; |
| break; |
| case NL80211_CMD_VENDOR: |
| if (WARN_ON(vendor_event_idx < 0 || |
| vendor_event_idx >= wiphy->n_vendor_events)) |
| return NULL; |
| info = &wiphy->vendor_events[vendor_event_idx]; |
| break; |
| default: |
| WARN_ON(1); |
| return NULL; |
| } |
| |
| return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, portid, 0, |
| cmd, attr, info, gfp); |
| } |
| EXPORT_SYMBOL(__cfg80211_alloc_event_skb); |
| |
| void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) |
| { |
| struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; |
| void *hdr = ((void **)skb->cb)[1]; |
| struct nlmsghdr *nlhdr = nlmsg_hdr(skb); |
| struct nlattr *data = ((void **)skb->cb)[2]; |
| enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; |
| |
| /* clear CB data for netlink core to own from now on */ |
| memset(skb->cb, 0, sizeof(skb->cb)); |
| |
| nla_nest_end(skb, data); |
| genlmsg_end(skb, hdr); |
| |
| if (nlhdr->nlmsg_pid) { |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), skb, |
| nlhdr->nlmsg_pid); |
| } else { |
| if (data->nla_type == NL80211_ATTR_VENDOR_DATA) |
| mcgrp = NL80211_MCGRP_VENDOR; |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), |
| skb, 0, mcgrp, gfp); |
| } |
| } |
| EXPORT_SYMBOL(__cfg80211_send_event_skb); |
| |
| #ifdef CONFIG_NL80211_TESTMODE |
| static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev; |
| int err; |
| |
| lockdep_assert_held(&rdev->wiphy.mtx); |
| |
| wdev = __cfg80211_wdev_from_attrs(rdev, genl_info_net(info), |
| info->attrs); |
| |
| if (!rdev->ops->testmode_cmd) |
| return -EOPNOTSUPP; |
| |
| if (IS_ERR(wdev)) { |
| err = PTR_ERR(wdev); |
| if (err != -EINVAL) |
| return err; |
| wdev = NULL; |
| } else if (wdev->wiphy != &rdev->wiphy) { |
| return -EINVAL; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_TESTDATA]) |
| return -EINVAL; |
| |
| rdev->cur_cmd_info = info; |
| err = rdev_testmode_cmd(rdev, wdev, |
| nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
| nla_len(info->attrs[NL80211_ATTR_TESTDATA])); |
| rdev->cur_cmd_info = NULL; |
| |
| return err; |
| } |
| |
| static int nl80211_testmode_dump(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| struct cfg80211_registered_device *rdev; |
| struct nlattr **attrbuf = NULL; |
| int err; |
| long phy_idx; |
| void *data = NULL; |
| int data_len = 0; |
| |
| rtnl_lock(); |
| |
| if (cb->args[0]) { |
| /* |
| * 0 is a valid index, but not valid for args[0], |
| * so we need to offset by 1. |
| */ |
| phy_idx = cb->args[0] - 1; |
| |
| rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
| if (!rdev) { |
| err = -ENOENT; |
| goto out_err; |
| } |
| } else { |
| attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), |
| GFP_KERNEL); |
| if (!attrbuf) { |
| err = -ENOMEM; |
| goto out_err; |
| } |
| |
| err = nlmsg_parse_deprecated(cb->nlh, |
| GENL_HDRLEN + nl80211_fam.hdrsize, |
| attrbuf, nl80211_fam.maxattr, |
| nl80211_policy, NULL); |
| if (err) |
| goto out_err; |
| |
| rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf); |
| if (IS_ERR(rdev)) { |
| err = PTR_ERR(rdev); |
| goto out_err; |
| } |
| phy_idx = rdev->wiphy_idx; |
| |
| if (attrbuf[NL80211_ATTR_TESTDATA]) |
| cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA]; |
| } |
| |
| if (cb->args[1]) { |
| data = nla_data((void *)cb->args[1]); |
| data_len = nla_len((void *)cb->args[1]); |
| } |
| |
| if (!rdev->ops->testmode_dump) { |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| while (1) { |
| void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| NL80211_CMD_TESTMODE); |
| struct nlattr *tmdata; |
| |
| if (!hdr) |
| break; |
| |
| if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } |
| |
| tmdata = nla_nest_start_noflag(skb, NL80211_ATTR_TESTDATA); |
| if (!tmdata) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } |
| err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
| nla_nest_end(skb, tmdata); |
| |
| if (err == -ENOBUFS || err == -ENOENT) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } else if (err) { |
| genlmsg_cancel(skb, hdr); |
| goto out_err; |
| } |
| |
| genlmsg_end(skb, hdr); |
| } |
| |
| err = skb->len; |
| /* see above */ |
| cb->args[0] = phy_idx + 1; |
| out_err: |
| kfree(attrbuf); |
| rtnl_unlock(); |
| return err; |
| } |
| #endif |
| |
| static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_connect_params connect; |
| struct wiphy *wiphy; |
| struct cfg80211_cached_keys *connkeys = NULL; |
| u32 freq = 0; |
| int err; |
| |
| memset(&connect, 0, sizeof(connect)); |
| |
| if (!info->attrs[NL80211_ATTR_SSID] || |
| !nla_len(info->attrs[NL80211_ATTR_SSID])) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { |
| connect.auth_type = |
| nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
| if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
| NL80211_CMD_CONNECT)) |
| return -EINVAL; |
| } else |
| connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
| |
| connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; |
| |
| if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X)) |
| return -EINVAL; |
| connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS]; |
| |
| err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
| NL80211_MAX_NR_CIPHER_SUITES); |
| if (err) |
| return err; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| wiphy = &rdev->wiphy; |
| |
| connect.bg_scan_period = -1; |
| if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && |
| (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { |
| connect.bg_scan_period = |
| nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| else if (info->attrs[NL80211_ATTR_MAC_HINT]) |
| connect.bssid_hint = |
| nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); |
| connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_USE_MFP]) { |
| connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
| if (connect.mfp == NL80211_MFP_OPTIONAL && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_MFP_OPTIONAL)) |
| return -EOPNOTSUPP; |
| } else { |
| connect.mfp = NL80211_MFP_NO; |
| } |
| |
| if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
| connect.prev_bssid = |
| nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
| freq = MHZ_TO_KHZ(nla_get_u32( |
| info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]) |
| freq += |
| nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]); |
| |
| if (freq) { |
| connect.channel = nl80211_get_valid_chan(wiphy, freq); |
| if (!connect.channel) |
| return -EINVAL; |
| } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { |
| freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); |
| freq = MHZ_TO_KHZ(freq); |
| connect.channel_hint = nl80211_get_valid_chan(wiphy, freq); |
| if (!connect.channel_hint) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) { |
| connect.edmg.channels = |
| nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]); |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]) |
| connect.edmg.bw_config = |
| nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]); |
| } |
| |
| if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
| connkeys = nl80211_parse_connkeys(rdev, info, NULL); |
| if (IS_ERR(connkeys)) |
| return PTR_ERR(connkeys); |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
| connect.flags |= ASSOC_REQ_DISABLE_HT; |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
| memcpy(&connect.ht_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
| sizeof(connect.ht_capa_mask)); |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| memcpy(&connect.ht_capa, |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
| sizeof(connect.ht_capa)); |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
| connect.flags |= ASSOC_REQ_DISABLE_VHT; |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HE])) |
| connect.flags |= ASSOC_REQ_DISABLE_HE; |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_EHT])) |
| connect.flags |= ASSOC_REQ_DISABLE_EHT; |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
| memcpy(&connect.vht_capa_mask, |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), |
| sizeof(connect.vht_capa_mask)); |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { |
| if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| memcpy(&connect.vht_capa, |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), |
| sizeof(connect.vht_capa)); |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
| if (!((rdev->wiphy.features & |
| NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) && |
| (rdev->wiphy.features & NL80211_FEATURE_QUIET)) && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_RRM)) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| connect.flags |= ASSOC_REQ_USE_RRM; |
| } |
| |
| connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]); |
| if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) { |
| kfree_sensitive(connkeys); |
| return -EOPNOTSUPP; |
| } |
| |
| if (info->attrs[NL80211_ATTR_BSS_SELECT]) { |
| /* bss selection makes no sense if bssid is set */ |
| if (connect.bssid) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| |
| err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT], |
| wiphy, &connect.bss_select); |
| if (err) { |
| kfree_sensitive(connkeys); |
| return err; |
| } |
| } |
| |
| if (wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) && |
| info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] && |
| info->attrs[NL80211_ATTR_FILS_ERP_REALM] && |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] && |
| info->attrs[NL80211_ATTR_FILS_ERP_RRK]) { |
| connect.fils_erp_username = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]); |
| connect.fils_erp_username_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]); |
| connect.fils_erp_realm = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]); |
| connect.fils_erp_realm_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]); |
| connect.fils_erp_next_seq_num = |
| nla_get_u16( |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]); |
| connect.fils_erp_rrk = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]); |
| connect.fils_erp_rrk_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]); |
| } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] || |
| info->attrs[NL80211_ATTR_FILS_ERP_REALM] || |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] || |
| info->attrs[NL80211_ATTR_FILS_ERP_RRK]) { |
| kfree_sensitive(connkeys); |
| return -EINVAL; |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) { |
| if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
| kfree_sensitive(connkeys); |
| GENL_SET_ERR_MSG(info, |
| "external auth requires connection ownership"); |
| return -EINVAL; |
| } |
| connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT; |
| } |
| |
| if (nla_get_flag(info->attrs[NL80211_ATTR_MLO_SUPPORT])) |
| connect.flags |= CONNECT_REQ_MLO_SUPPORT; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| |
| err = cfg80211_connect(rdev, dev, &connect, connkeys, |
| connect.prev_bssid); |
| if (err) |
| kfree_sensitive(connkeys); |
| |
| if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
| dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid; |
| if (connect.bssid) |
| memcpy(dev->ieee80211_ptr->disconnect_bssid, |
| connect.bssid, ETH_ALEN); |
| else |
| eth_zero_addr(dev->ieee80211_ptr->disconnect_bssid); |
| } |
| |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return err; |
| } |
| |
| static int nl80211_update_connect_params(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_connect_params connect = {}; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| bool fils_sk_offload; |
| u32 auth_type; |
| u32 changed = 0; |
| int ret; |
| |
| if (!rdev->ops->update_connect_params) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| changed |= UPDATE_ASSOC_IES; |
| } |
| |
| fils_sk_offload = wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_FILS_SK_OFFLOAD); |
| |
| /* |
| * when driver supports fils-sk offload all attributes must be |
| * provided. So the else covers "fils-sk-not-all" and |
| * "no-fils-sk-any". |
| */ |
| if (fils_sk_offload && |
| info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] && |
| info->attrs[NL80211_ATTR_FILS_ERP_REALM] && |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] && |
| info->attrs[NL80211_ATTR_FILS_ERP_RRK]) { |
| connect.fils_erp_username = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]); |
| connect.fils_erp_username_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]); |
| connect.fils_erp_realm = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]); |
| connect.fils_erp_realm_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]); |
| connect.fils_erp_next_seq_num = |
| nla_get_u16( |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]); |
| connect.fils_erp_rrk = |
| nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]); |
| connect.fils_erp_rrk_len = |
| nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]); |
| changed |= UPDATE_FILS_ERP_INFO; |
| } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] || |
| info->attrs[NL80211_ATTR_FILS_ERP_REALM] || |
| info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] || |
| info->attrs[NL80211_ATTR_FILS_ERP_RRK]) { |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { |
| auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
| if (!nl80211_valid_auth_type(rdev, auth_type, |
| NL80211_CMD_CONNECT)) |
| return -EINVAL; |
| |
| if (auth_type == NL80211_AUTHTYPE_FILS_SK && |
| fils_sk_offload && !(changed & UPDATE_FILS_ERP_INFO)) |
| return -EINVAL; |
| |
| connect.auth_type = auth_type; |
| changed |= UPDATE_AUTH_TYPE; |
| } |
| |
| wdev_lock(dev->ieee80211_ptr); |
| if (!wdev->connected) |
| ret = -ENOLINK; |
| else |
| ret = rdev_update_connect_params(rdev, dev, &connect, changed); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return ret; |
| } |
| |
| static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u16 reason; |
| int ret; |
| |
| if (dev->ieee80211_ptr->conn_owner_nlportid && |
| dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid) |
| return -EPERM; |
| |
| if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
| reason = WLAN_REASON_DEAUTH_LEAVING; |
| else |
| reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
| |
| if (reason == 0) |
| return -EINVAL; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| ret = cfg80211_disconnect(rdev, dev, reason, true); |
| wdev_unlock(dev->ieee80211_ptr); |
| return ret; |
| } |
| |
| static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net *net; |
| int err; |
| |
| if (info->attrs[NL80211_ATTR_PID]) { |
| u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); |
| |
| net = get_net_ns_by_pid(pid); |
| } else if (info->attrs[NL80211_ATTR_NETNS_FD]) { |
| u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]); |
| |
| net = get_net_ns_by_fd(fd); |
| } else { |
| return -EINVAL; |
| } |
| |
| if (IS_ERR(net)) |
| return PTR_ERR(net); |
| |
| err = 0; |
| |
| /* check if anything to do */ |
| if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
| err = cfg80211_switch_netns(rdev, net); |
| |
| put_net(net); |
| return err; |
| } |
| |
| static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_pmksa *pmksa) = NULL; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_pmksa pmksa; |
| |
| memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); |
| |
| if (!info->attrs[NL80211_ATTR_PMKID]) |
| return -EINVAL; |
| |
| pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
| |
| if (info->attrs[NL80211_ATTR_MAC]) { |
| pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| } else if (info->attrs[NL80211_ATTR_SSID] && |
| info->attrs[NL80211_ATTR_FILS_CACHE_ID] && |
| (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA || |
| info->attrs[NL80211_ATTR_PMK])) { |
| pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
| pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| pmksa.cache_id = |
| nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]); |
| } else { |
| return -EINVAL; |
| } |
| if (info->attrs[NL80211_ATTR_PMK]) { |
| pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]); |
| pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_PMK_LIFETIME]) |
| pmksa.pmk_lifetime = |
| nla_get_u32(info->attrs[NL80211_ATTR_PMK_LIFETIME]); |
| |
| if (info->attrs[NL80211_ATTR_PMK_REAUTH_THRESHOLD]) |
| pmksa.pmk_reauth_threshold = |
| nla_get_u8( |
| info->attrs[NL80211_ATTR_PMK_REAUTH_THRESHOLD]); |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
| !(dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP && |
| wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_AP_PMKSA_CACHING))) |
| return -EOPNOTSUPP; |
| |
| switch (info->genlhdr->cmd) { |
| case NL80211_CMD_SET_PMKSA: |
| rdev_ops = rdev->ops->set_pmksa; |
| break; |
| case NL80211_CMD_DEL_PMKSA: |
| rdev_ops = rdev->ops->del_pmksa; |
| break; |
| default: |
| WARN_ON(1); |
| break; |
| } |
| |
| if (!rdev_ops) |
| return -EOPNOTSUPP; |
| |
| return rdev_ops(&rdev->wiphy, dev, &pmksa); |
| } |
| |
| static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->flush_pmksa) |
| return -EOPNOTSUPP; |
| |
| return rdev_flush_pmksa(rdev, dev); |
| } |
| |
| static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 action_code, dialog_token; |
| u32 peer_capability = 0; |
| u16 status_code; |
| u8 *peer; |
| bool initiator; |
| |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || |
| !rdev->ops->tdls_mgmt) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || |
| !info->attrs[NL80211_ATTR_STATUS_CODE] || |
| !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || |
| !info->attrs[NL80211_ATTR_IE] || |
| !info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); |
| status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); |
| dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); |
| initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]); |
| if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) |
| peer_capability = |
| nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); |
| |
| return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
| dialog_token, status_code, peer_capability, |
| initiator, |
| nla_data(info->attrs[NL80211_ATTR_IE]), |
| nla_len(info->attrs[NL80211_ATTR_IE])); |
| } |
| |
| static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| enum nl80211_tdls_operation operation; |
| u8 *peer; |
| |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || |
| !rdev->ops->tdls_oper) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || |
| !info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); |
| peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| return rdev_tdls_oper(rdev, dev, peer, operation); |
| } |
| |
| static int nl80211_remain_on_channel(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct cfg80211_chan_def chandef; |
| struct sk_buff *msg; |
| void *hdr; |
| u64 cookie; |
| u32 duration; |
| int err; |
| |
| if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || |
| !info->attrs[NL80211_ATTR_DURATION]) |
| return -EINVAL; |
| |
| duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
| |
| if (!rdev->ops->remain_on_channel || |
| !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) |
| return -EOPNOTSUPP; |
| |
| /* |
| * We should be on that channel for at least a minimum amount of |
| * time (10ms) but no longer than the driver supports. |
| */ |
| if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
| duration > rdev->wiphy.max_remain_on_channel_duration) |
| return -EINVAL; |
| |
| err = nl80211_parse_chandef(rdev, info, &chandef); |
| if (err) |
| return err; |
| |
| wdev_lock(wdev); |
| if (!cfg80211_off_channel_oper_allowed(wdev, chandef.chan)) { |
| const struct cfg80211_chan_def *oper_chandef, *compat_chandef; |
| |
| oper_chandef = wdev_chandef(wdev, link_id); |
| |
| if (WARN_ON(!oper_chandef)) { |
| /* cannot happen since we must beacon to get here */ |
| WARN_ON(1); |
| wdev_unlock(wdev); |
| return -EBUSY; |
| } |
| |
| /* note: returns first one if identical chandefs */ |
| compat_chandef = cfg80211_chandef_compatible(&chandef, |
| oper_chandef); |
| |
| if (compat_chandef != &chandef) { |
| wdev_unlock(wdev); |
| return -EBUSY; |
| } |
| } |
| wdev_unlock(wdev); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_REMAIN_ON_CHANNEL); |
| if (!hdr) { |
| err = -ENOBUFS; |
| goto free_msg; |
| } |
| |
| err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
| duration, &cookie); |
| |
| if (err) |
| goto free_msg; |
| |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| err = -ENOBUFS; |
| free_msg: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| u64 cookie; |
| |
| if (!info->attrs[NL80211_ATTR_COOKIE]) |
| return -EINVAL; |
| |
| if (!rdev->ops->cancel_remain_on_channel) |
| return -EOPNOTSUPP; |
| |
| cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
| |
| return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
| } |
| |
| static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_bitrate_mask mask; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| int err; |
| |
| if (!rdev->ops->set_bitrate_mask) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(wdev); |
| err = nl80211_parse_tx_bitrate_mask(info, info->attrs, |
| NL80211_ATTR_TX_RATES, &mask, |
| dev, true, link_id); |
| if (err) |
| goto out; |
| |
| err = rdev_set_bitrate_mask(rdev, dev, link_id, NULL, &mask); |
| out: |
| wdev_unlock(wdev); |
| return err; |
| } |
| |
| static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
| |
| if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
| frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_MESH_POINT: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| break; |
| case NL80211_IFTYPE_NAN: |
| if (!wiphy_ext_feature_isset(wdev->wiphy, |
| NL80211_EXT_FEATURE_SECURE_NAN)) |
| return -EOPNOTSUPP; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| /* not much point in registering if we can't reply */ |
| if (!rdev->ops->mgmt_tx) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_RECEIVE_MULTICAST] && |
| !wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS)) { |
| GENL_SET_ERR_MSG(info, |
| "multicast RX registrations are not supported"); |
| return -EOPNOTSUPP; |
| } |
| |
| return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
| nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
| nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
| info->attrs[NL80211_ATTR_RECEIVE_MULTICAST], |
| info->extack); |
| } |
| |
| static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct cfg80211_chan_def chandef; |
| int err; |
| void *hdr = NULL; |
| u64 cookie; |
| struct sk_buff *msg = NULL; |
| struct cfg80211_mgmt_tx_params params = { |
| .dont_wait_for_ack = |
| info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK], |
| }; |
| |
| if (!info->attrs[NL80211_ATTR_FRAME]) |
| return -EINVAL; |
| |
| if (!rdev->ops->mgmt_tx) |
| return -EOPNOTSUPP; |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_P2P_DEVICE: |
| if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
| return -EINVAL; |
| break; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_MESH_POINT: |
| case NL80211_IFTYPE_P2P_GO: |
| break; |
| case NL80211_IFTYPE_NAN: |
| if (!wiphy_ext_feature_isset(wdev->wiphy, |
| NL80211_EXT_FEATURE_SECURE_NAN)) |
| return -EOPNOTSUPP; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| if (info->attrs[NL80211_ATTR_DURATION]) { |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
| return -EINVAL; |
| params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
| |
| /* |
| * We should wait on the channel for at least a minimum amount |
| * of time (10ms) but no longer than the driver supports. |
| */ |
| if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
| params.wait > rdev->wiphy.max_remain_on_channel_duration) |
| return -EINVAL; |
| } |
| |
| params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
| |
| if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
| return -EINVAL; |
| |
| params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
| |
| /* get the channel if any has been specified, otherwise pass NULL to |
| * the driver. The latter will use the current one |
| */ |
| chandef.chan = NULL; |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
| err = nl80211_parse_chandef(rdev, info, &chandef); |
| if (err) |
| return err; |
| } |
| |
| if (!chandef.chan && params.offchan) |
| return -EINVAL; |
| |
| wdev_lock(wdev); |
| if (params.offchan && |
| !cfg80211_off_channel_oper_allowed(wdev, chandef.chan)) { |
| wdev_unlock(wdev); |
| return -EBUSY; |
| } |
| |
| params.link_id = nl80211_link_id_or_invalid(info->attrs); |
| /* |
| * This now races due to the unlock, but we cannot check |
| * the valid links for the _station_ anyway, so that's up |
| * to the driver. |
| */ |
| if (params.link_id >= 0 && |
| !(wdev->valid_links & BIT(params.link_id))) { |
| wdev_unlock(wdev); |
| return -EINVAL; |
| } |
| wdev_unlock(wdev); |
| |
| params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
| params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); |
| |
| if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { |
| int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); |
| int i; |
| |
| if (len % sizeof(u16)) |
| return -EINVAL; |
| |
| params.n_csa_offsets = len / sizeof(u16); |
| params.csa_offsets = |
| nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); |
| |
| /* check that all the offsets fit the frame */ |
| for (i = 0; i < params.n_csa_offsets; i++) { |
| if (params.csa_offsets[i] >= params.len) |
| return -EINVAL; |
| } |
| } |
| |
| if (!params.dont_wait_for_ack) { |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_FRAME); |
| if (!hdr) { |
| err = -ENOBUFS; |
| goto free_msg; |
| } |
| } |
| |
| params.chan = chandef.chan; |
| err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); |
| if (err) |
| goto free_msg; |
| |
| if (msg) { |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| } |
| |
| return 0; |
| |
| nla_put_failure: |
| err = -ENOBUFS; |
| free_msg: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| u64 cookie; |
| |
| if (!info->attrs[NL80211_ATTR_COOKIE]) |
| return -EINVAL; |
| |
| if (!rdev->ops->mgmt_tx_cancel_wait) |
| return -EOPNOTSUPP; |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| break; |
| case NL80211_IFTYPE_NAN: |
| if (!wiphy_ext_feature_isset(wdev->wiphy, |
| NL80211_EXT_FEATURE_SECURE_NAN)) |
| return -EOPNOTSUPP; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
| |
| return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
| } |
| |
| static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 ps_state; |
| bool state; |
| int err; |
| |
| if (!info->attrs[NL80211_ATTR_PS_STATE]) |
| return -EINVAL; |
| |
| ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); |
| |
| wdev = dev->ieee80211_ptr; |
| |
| if (!rdev->ops->set_power_mgmt) |
| return -EOPNOTSUPP; |
| |
| state = (ps_state == NL80211_PS_ENABLED) ? true : false; |
| |
| if (state == wdev->ps) |
| return 0; |
| |
| err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
| if (!err) |
| wdev->ps = state; |
| return err; |
| } |
| |
| static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| enum nl80211_ps_state ps_state; |
| struct wireless_dev *wdev; |
| struct net_device *dev = info->user_ptr[1]; |
| struct sk_buff *msg; |
| void *hdr; |
| int err; |
| |
| wdev = dev->ieee80211_ptr; |
| |
| if (!rdev->ops->set_power_mgmt) |
| return -EOPNOTSUPP; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_POWER_SAVE); |
| if (!hdr) { |
| err = -ENOBUFS; |
| goto free_msg; |
| } |
| |
| if (wdev->ps) |
| ps_state = NL80211_PS_ENABLED; |
| else |
| ps_state = NL80211_PS_DISABLED; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| err = -ENOBUFS; |
| free_msg: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static const struct nla_policy |
| nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { |
| [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY }, |
| [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 }, |
| }; |
| |
| static int nl80211_set_cqm_txe(struct genl_info *info, |
| u32 rate, u32 pkts, u32 intvl) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
| return -EINVAL; |
| |
| if (!rdev->ops->set_cqm_txe_config) |
| return -EOPNOTSUPP; |
| |
| if (wdev->iftype != NL80211_IFTYPE_STATION && |
| wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
| } |
| |
| static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev, |
| struct net_device *dev) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| s32 last, low, high; |
| u32 hyst; |
| int i, n, low_index; |
| int err; |
| |
| /* RSSI reporting disabled? */ |
| if (!wdev->cqm_config) |
| return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0); |
| |
| /* |
| * Obtain current RSSI value if possible, if not and no RSSI threshold |
| * event has been received yet, we should receive an event after a |
| * connection is established and enough beacons received to calculate |
| * the average. |
| */ |
| if (!wdev->cqm_config->last_rssi_event_value && |
| wdev->links[0].client.current_bss && |
| rdev->ops->get_station) { |
| struct station_info sinfo = {}; |
| u8 *mac_addr; |
| |
| mac_addr = wdev->links[0].client.current_bss->pub.bssid; |
| |
| err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
| if (err) |
| return err; |
| |
| cfg80211_sinfo_release_content(&sinfo); |
| if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG)) |
| wdev->cqm_config->last_rssi_event_value = |
| (s8) sinfo.rx_beacon_signal_avg; |
| } |
| |
| last = wdev->cqm_config->last_rssi_event_value; |
| hyst = wdev->cqm_config->rssi_hyst; |
| n = wdev->cqm_config->n_rssi_thresholds; |
| |
| for (i = 0; i < n; i++) { |
| i = array_index_nospec(i, n); |
| if (last < wdev->cqm_config->rssi_thresholds[i]) |
| break; |
| } |
| |
| low_index = i - 1; |
| if (low_index >= 0) { |
| low_index = array_index_nospec(low_index, n); |
| low = wdev->cqm_config->rssi_thresholds[low_index] - hyst; |
| } else { |
| low = S32_MIN; |
| } |
| if (i < n) { |
| i = array_index_nospec(i, n); |
| high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1; |
| } else { |
| high = S32_MAX; |
| } |
| |
| return rdev_set_cqm_rssi_range_config(rdev, dev, low, high); |
| } |
| |
| static int nl80211_set_cqm_rssi(struct genl_info *info, |
| const s32 *thresholds, int n_thresholds, |
| u32 hysteresis) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| int i, err; |
| s32 prev = S32_MIN; |
| |
| /* Check all values negative and sorted */ |
| for (i = 0; i < n_thresholds; i++) { |
| if (thresholds[i] > 0 || thresholds[i] <= prev) |
| return -EINVAL; |
| |
| prev = thresholds[i]; |
| } |
| |
| if (wdev->iftype != NL80211_IFTYPE_STATION && |
| wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| wdev_lock(wdev); |
| cfg80211_cqm_config_free(wdev); |
| wdev_unlock(wdev); |
| |
| if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) { |
| if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */ |
| return rdev_set_cqm_rssi_config(rdev, dev, 0, 0); |
| |
| return rdev_set_cqm_rssi_config(rdev, dev, |
| thresholds[0], hysteresis); |
| } |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_CQM_RSSI_LIST)) |
| return -EOPNOTSUPP; |
| |
| if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */ |
| n_thresholds = 0; |
| |
| wdev_lock(wdev); |
| if (n_thresholds) { |
| struct cfg80211_cqm_config *cqm_config; |
| |
| cqm_config = kzalloc(struct_size(cqm_config, rssi_thresholds, |
| n_thresholds), |
| GFP_KERNEL); |
| if (!cqm_config) { |
| err = -ENOMEM; |
| goto unlock; |
| } |
| |
| cqm_config->rssi_hyst = hysteresis; |
| cqm_config->n_rssi_thresholds = n_thresholds; |
| memcpy(cqm_config->rssi_thresholds, thresholds, |
| flex_array_size(cqm_config, rssi_thresholds, |
| n_thresholds)); |
| |
| wdev->cqm_config = cqm_config; |
| } |
| |
| err = cfg80211_cqm_rssi_update(rdev, dev); |
| |
| unlock: |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; |
| struct nlattr *cqm; |
| int err; |
| |
| cqm = info->attrs[NL80211_ATTR_CQM]; |
| if (!cqm) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(attrs, NL80211_ATTR_CQM_MAX, cqm, |
| nl80211_attr_cqm_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && |
| attrs[NL80211_ATTR_CQM_RSSI_HYST]) { |
| const s32 *thresholds = |
| nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
| int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
| u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); |
| |
| if (len % 4) |
| return -EINVAL; |
| |
| return nl80211_set_cqm_rssi(info, thresholds, len / 4, |
| hysteresis); |
| } |
| |
| if (attrs[NL80211_ATTR_CQM_TXE_RATE] && |
| attrs[NL80211_ATTR_CQM_TXE_PKTS] && |
| attrs[NL80211_ATTR_CQM_TXE_INTVL]) { |
| u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); |
| u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); |
| u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); |
| |
| return nl80211_set_cqm_txe(info, rate, pkts, intvl); |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct ocb_setup setup = {}; |
| int err; |
| |
| err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
| if (err) |
| return err; |
| |
| return cfg80211_join_ocb(rdev, dev, &setup); |
| } |
| |
| static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| return cfg80211_leave_ocb(rdev, dev); |
| } |
| |
| static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct mesh_config cfg; |
| struct mesh_setup setup; |
| int err; |
| |
| /* start with default */ |
| memcpy(&cfg, &default_mesh_config, sizeof(cfg)); |
| memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
| |
| if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
| /* and parse parameters if given */ |
| err = nl80211_parse_mesh_config(info, &cfg, NULL); |
| if (err) |
| return err; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_MESH_ID] || |
| !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) |
| return -EINVAL; |
| |
| setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
| setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
| |
| if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
| !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, |
| nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) |
| return -EINVAL; |
| |
| if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
| setup.beacon_interval = |
| nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
| |
| err = cfg80211_validate_beacon_int(rdev, |
| NL80211_IFTYPE_MESH_POINT, |
| setup.beacon_interval); |
| if (err) |
| return err; |
| } |
| |
| if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { |
| setup.dtim_period = |
| nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); |
| if (setup.dtim_period < 1 || setup.dtim_period > 100) |
| return -EINVAL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
| /* parse additional setup parameters if given */ |
| err = nl80211_parse_mesh_setup(info, &setup); |
| if (err) |
| return err; |
| } |
| |
| if (setup.user_mpm) |
| cfg.auto_open_plinks = false; |
| |
| if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
| err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
| if (err) |
| return err; |
| } else { |
| /* __cfg80211_join_mesh() will sort it out */ |
| setup.chandef.chan = NULL; |
| } |
| |
| if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
| u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| int n_rates = |
| nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
| struct ieee80211_supported_band *sband; |
| |
| if (!setup.chandef.chan) |
| return -EINVAL; |
| |
| sband = rdev->wiphy.bands[setup.chandef.chan->band]; |
| |
| err = ieee80211_get_ratemask(sband, rates, n_rates, |
| &setup.basic_rates); |
| if (err) |
| return err; |
| } |
| |
| if (info->attrs[NL80211_ATTR_TX_RATES]) { |
| err = nl80211_parse_tx_bitrate_mask(info, info->attrs, |
| NL80211_ATTR_TX_RATES, |
| &setup.beacon_rate, |
| dev, false, 0); |
| if (err) |
| return err; |
| |
| if (!setup.chandef.chan) |
| return -EINVAL; |
| |
| err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band, |
| &setup.beacon_rate); |
| if (err) |
| return err; |
| } |
| |
| setup.userspace_handles_dfs = |
| nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); |
| |
| if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) { |
| int r = validate_pae_over_nl80211(rdev, info); |
| |
| if (r < 0) |
| return r; |
| |
| setup.control_port_over_nl80211 = true; |
| } |
| |
| wdev_lock(dev->ieee80211_ptr); |
| err = __cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
| if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
| dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid; |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return err; |
| } |
| |
| static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| return cfg80211_leave_mesh(rdev, dev); |
| } |
| |
| #ifdef CONFIG_PM |
| static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev) |
| { |
| struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; |
| struct nlattr *nl_pats, *nl_pat; |
| int i, pat_len; |
| |
| if (!wowlan->n_patterns) |
| return 0; |
| |
| nl_pats = nla_nest_start_noflag(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); |
| if (!nl_pats) |
| return -ENOBUFS; |
| |
| for (i = 0; i < wowlan->n_patterns; i++) { |
| nl_pat = nla_nest_start_noflag(msg, i + 1); |
| if (!nl_pat) |
| return -ENOBUFS; |
| pat_len = wowlan->patterns[i].pattern_len; |
| if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), |
| wowlan->patterns[i].mask) || |
| nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
| wowlan->patterns[i].pattern) || |
| nla_put_u32(msg, NL80211_PKTPAT_OFFSET, |
| wowlan->patterns[i].pkt_offset)) |
| return -ENOBUFS; |
| nla_nest_end(msg, nl_pat); |
| } |
| nla_nest_end(msg, nl_pats); |
| |
| return 0; |
| } |
| |
| static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
| struct cfg80211_wowlan_tcp *tcp) |
| { |
| struct nlattr *nl_tcp; |
| |
| if (!tcp) |
| return 0; |
| |
| nl_tcp = nla_nest_start_noflag(msg, |
| NL80211_WOWLAN_TRIG_TCP_CONNECTION); |
| if (!nl_tcp) |
| return -ENOBUFS; |
| |
| if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || |
| nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || |
| nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || |
| nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || |
| nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || |
| nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
| tcp->payload_len, tcp->payload) || |
| nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, |
| tcp->data_interval) || |
| nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, |
| tcp->wake_len, tcp->wake_data) || |
| nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, |
| DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) |
| return -ENOBUFS; |
| |
| if (tcp->payload_seq.len && |
| nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, |
| sizeof(tcp->payload_seq), &tcp->payload_seq)) |
| return -ENOBUFS; |
| |
| if (tcp->payload_tok.len && |
| nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, |
| sizeof(tcp->payload_tok) + tcp->tokens_size, |
| &tcp->payload_tok)) |
| return -ENOBUFS; |
| |
| nla_nest_end(msg, nl_tcp); |
| |
| return 0; |
| } |
| |
| static int nl80211_send_wowlan_nd(struct sk_buff *msg, |
| struct cfg80211_sched_scan_request *req) |
| { |
| struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan; |
| int i; |
| |
| if (!req) |
| return 0; |
| |
| nd = nla_nest_start_noflag(msg, NL80211_WOWLAN_TRIG_NET_DETECT); |
| if (!nd) |
| return -ENOBUFS; |
| |
| if (req->n_scan_plans == 1 && |
| nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, |
| req->scan_plans[0].interval * 1000)) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay)) |
| return -ENOBUFS; |
| |
| if (req->relative_rssi_set) { |
| struct nl80211_bss_select_rssi_adjust rssi_adjust; |
| |
| if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI, |
| req->relative_rssi)) |
| return -ENOBUFS; |
| |
| rssi_adjust.band = req->rssi_adjust.band; |
| rssi_adjust.delta = req->rssi_adjust.delta; |
| if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST, |
| sizeof(rssi_adjust), &rssi_adjust)) |
| return -ENOBUFS; |
| } |
| |
| freqs = nla_nest_start_noflag(msg, NL80211_ATTR_SCAN_FREQUENCIES); |
| if (!freqs) |
| return -ENOBUFS; |
| |
| for (i = 0; i < req->n_channels; i++) { |
| if (nla_put_u32(msg, i, req->channels[i]->center_freq)) |
| return -ENOBUFS; |
| } |
| |
| nla_nest_end(msg, freqs); |
| |
| if (req->n_match_sets) { |
| matches = nla_nest_start_noflag(msg, |
| NL80211_ATTR_SCHED_SCAN_MATCH); |
| if (!matches) |
| return -ENOBUFS; |
| |
| for (i = 0; i < req->n_match_sets; i++) { |
| match = nla_nest_start_noflag(msg, i); |
| if (!match) |
| return -ENOBUFS; |
| |
| if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID, |
| req->match_sets[i].ssid.ssid_len, |
| req->match_sets[i].ssid.ssid)) |
| return -ENOBUFS; |
| nla_nest_end(msg, match); |
| } |
| nla_nest_end(msg, matches); |
| } |
| |
| scan_plans = nla_nest_start_noflag(msg, NL80211_ATTR_SCHED_SCAN_PLANS); |
| if (!scan_plans) |
| return -ENOBUFS; |
| |
| for (i = 0; i < req->n_scan_plans; i++) { |
| scan_plan = nla_nest_start_noflag(msg, i + 1); |
| if (!scan_plan) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL, |
| req->scan_plans[i].interval) || |
| (req->scan_plans[i].iterations && |
| nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS, |
| req->scan_plans[i].iterations))) |
| return -ENOBUFS; |
| nla_nest_end(msg, scan_plan); |
| } |
| nla_nest_end(msg, scan_plans); |
| |
| nla_nest_end(msg, nd); |
| |
| return 0; |
| } |
| |
| static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct sk_buff *msg; |
| void *hdr; |
| u32 size = NLMSG_DEFAULT_SIZE; |
| |
| if (!rdev->wiphy.wowlan) |
| return -EOPNOTSUPP; |
| |
| if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { |
| /* adjust size to have room for all the data */ |
| size += rdev->wiphy.wowlan_config->tcp->tokens_size + |
| rdev->wiphy.wowlan_config->tcp->payload_len + |
| rdev->wiphy.wowlan_config->tcp->wake_len + |
| rdev->wiphy.wowlan_config->tcp->wake_len / 8; |
| } |
| |
| msg = nlmsg_new(size, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_WOWLAN); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (rdev->wiphy.wowlan_config) { |
| struct nlattr *nl_wowlan; |
| |
| nl_wowlan = nla_nest_start_noflag(msg, |
| NL80211_ATTR_WOWLAN_TRIGGERS); |
| if (!nl_wowlan) |
| goto nla_put_failure; |
| |
| if ((rdev->wiphy.wowlan_config->any && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
| (rdev->wiphy.wowlan_config->disconnect && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
| (rdev->wiphy.wowlan_config->magic_pkt && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
| (rdev->wiphy.wowlan_config->gtk_rekey_failure && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
| (rdev->wiphy.wowlan_config->eap_identity_req && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
| (rdev->wiphy.wowlan_config->four_way_handshake && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
| (rdev->wiphy.wowlan_config->rfkill_release && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
| goto nla_put_failure; |
| |
| if (nl80211_send_wowlan_patterns(msg, rdev)) |
| goto nla_put_failure; |
| |
| if (nl80211_send_wowlan_tcp(msg, |
| rdev->wiphy.wowlan_config->tcp)) |
| goto nla_put_failure; |
| |
| if (nl80211_send_wowlan_nd( |
| msg, |
| rdev->wiphy.wowlan_config->nd_config)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nl_wowlan); |
| } |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
| struct nlattr *attr, |
| struct cfg80211_wowlan *trig) |
| { |
| struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; |
| struct cfg80211_wowlan_tcp *cfg; |
| struct nl80211_wowlan_tcp_data_token *tok = NULL; |
| struct nl80211_wowlan_tcp_data_seq *seq = NULL; |
| u32 size; |
| u32 data_size, wake_size, tokens_size = 0, wake_mask_size; |
| int err, port; |
| |
| if (!rdev->wiphy.wowlan->tcp) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(tb, MAX_NL80211_WOWLAN_TCP, attr, |
| nl80211_wowlan_tcp_policy, NULL); |
| if (err) |
| return err; |
| |
| if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || |
| !tb[NL80211_WOWLAN_TCP_DST_IPV4] || |
| !tb[NL80211_WOWLAN_TCP_DST_MAC] || |
| !tb[NL80211_WOWLAN_TCP_DST_PORT] || |
| !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || |
| !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || |
| !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || |
| !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) |
| return -EINVAL; |
| |
| data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); |
| if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) |
| return -EINVAL; |
| |
| if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > |
| rdev->wiphy.wowlan->tcp->data_interval_max || |
| nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) |
| return -EINVAL; |
| |
| wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); |
| if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) |
| return -EINVAL; |
| |
| wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); |
| if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) |
| return -EINVAL; |
| |
| if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { |
| u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); |
| |
| tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); |
| tokens_size = tokln - sizeof(*tok); |
| |
| if (!tok->len || tokens_size % tok->len) |
| return -EINVAL; |
| if (!rdev->wiphy.wowlan->tcp->tok) |
| return -EINVAL; |
| if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) |
| return -EINVAL; |
| if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) |
| return -EINVAL; |
| if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) |
| return -EINVAL; |
| if (tok->offset + tok->len > data_size) |
| return -EINVAL; |
| } |
| |
| if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { |
| seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); |
| if (!rdev->wiphy.wowlan->tcp->seq) |
| return -EINVAL; |
| if (seq->len == 0 || seq->len > 4) |
| return -EINVAL; |
| if (seq->len + seq->offset > data_size) |
| return -EINVAL; |
| } |
| |
| size = sizeof(*cfg); |
| size += data_size; |
| size += wake_size + wake_mask_size; |
| size += tokens_size; |
| |
| cfg = kzalloc(size, GFP_KERNEL); |
| if (!cfg) |
| return -ENOMEM; |
| cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); |
| cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]); |
| memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), |
| ETH_ALEN); |
| if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) |
| port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); |
| else |
| port = 0; |
| #ifdef CONFIG_INET |
| /* allocate a socket and port for it and use it */ |
| err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, |
| IPPROTO_TCP, &cfg->sock, 1); |
| if (err) { |
| kfree(cfg); |
| return err; |
| } |
| if (inet_csk_get_port(cfg->sock->sk, port)) { |
| sock_release(cfg->sock); |
| kfree(cfg); |
| return -EADDRINUSE; |
| } |
| cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; |
| #else |
| if (!port) { |
| kfree(cfg); |
| return -EINVAL; |
| } |
| cfg->src_port = port; |
| #endif |
| |
| cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); |
| cfg->payload_len = data_size; |
| cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; |
| memcpy((void *)cfg->payload, |
| nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), |
| data_size); |
| if (seq) |
| cfg->payload_seq = *seq; |
| cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); |
| cfg->wake_len = wake_size; |
| cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; |
| memcpy((void *)cfg->wake_data, |
| nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), |
| wake_size); |
| cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + |
| data_size + wake_size; |
| memcpy((void *)cfg->wake_mask, |
| nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), |
| wake_mask_size); |
| if (tok) { |
| cfg->tokens_size = tokens_size; |
| cfg->payload_tok = *tok; |
| memcpy(cfg->payload_tok.token_stream, tok->token_stream, |
| tokens_size); |
| } |
| |
| trig->tcp = cfg; |
| |
| return 0; |
| } |
| |
| static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, |
| const struct wiphy_wowlan_support *wowlan, |
| struct nlattr *attr, |
| struct cfg80211_wowlan *trig) |
| { |
| struct nlattr **tb; |
| int err; |
| |
| tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL); |
| if (!tb) |
| return -ENOMEM; |
| |
| if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = nla_parse_nested_deprecated(tb, NL80211_ATTR_MAX, attr, |
| nl80211_policy, NULL); |
| if (err) |
| goto out; |
| |
| trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb, |
| wowlan->max_nd_match_sets); |
| err = PTR_ERR_OR_ZERO(trig->nd_config); |
| if (err) |
| trig->nd_config = NULL; |
| |
| out: |
| kfree(tb); |
| return err; |
| } |
| |
| static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; |
| struct cfg80211_wowlan new_triggers = {}; |
| struct cfg80211_wowlan *ntrig; |
| const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; |
| int err, i; |
| bool prev_enabled = rdev->wiphy.wowlan_config; |
| bool regular = false; |
| |
| if (!wowlan) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
| cfg80211_rdev_free_wowlan(rdev); |
| rdev->wiphy.wowlan_config = NULL; |
| goto set_wakeup; |
| } |
| |
| err = nla_parse_nested_deprecated(tb, MAX_NL80211_WOWLAN_TRIG, |
| info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS], |
| nl80211_wowlan_policy, info->extack); |
| if (err) |
| return err; |
| |
| if (tb[NL80211_WOWLAN_TRIG_ANY]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) |
| return -EINVAL; |
| new_triggers.any = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) |
| return -EINVAL; |
| new_triggers.disconnect = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) |
| return -EINVAL; |
| new_triggers.magic_pkt = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
| return -EINVAL; |
| |
| if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) |
| return -EINVAL; |
| new_triggers.gtk_rekey_failure = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) |
| return -EINVAL; |
| new_triggers.eap_identity_req = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) |
| return -EINVAL; |
| new_triggers.four_way_handshake = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { |
| if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) |
| return -EINVAL; |
| new_triggers.rfkill_release = true; |
| regular = true; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
| struct nlattr *pat; |
| int n_patterns = 0; |
| int rem, pat_len, mask_len, pkt_offset; |
| struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
| |
| regular = true; |
| |
| nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
| rem) |
| n_patterns++; |
| if (n_patterns > wowlan->n_patterns) |
| return -EINVAL; |
| |
| new_triggers.patterns = kcalloc(n_patterns, |
| sizeof(new_triggers.patterns[0]), |
| GFP_KERNEL); |
| if (!new_triggers.patterns) |
| return -ENOMEM; |
| |
| new_triggers.n_patterns = n_patterns; |
| i = 0; |
| |
| nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
| rem) { |
| u8 *mask_pat; |
| |
| err = nla_parse_nested_deprecated(pat_tb, |
| MAX_NL80211_PKTPAT, |
| pat, |
| nl80211_packet_pattern_policy, |
| info->extack); |
| if (err) |
| goto error; |
| |
| err = -EINVAL; |
| if (!pat_tb[NL80211_PKTPAT_MASK] || |
| !pat_tb[NL80211_PKTPAT_PATTERN]) |
| goto error; |
| pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
| mask_len = DIV_ROUND_UP(pat_len, 8); |
| if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
| goto error; |
| if (pat_len > wowlan->pattern_max_len || |
| pat_len < wowlan->pattern_min_len) |
| goto error; |
| |
| if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
| pkt_offset = 0; |
| else |
| pkt_offset = nla_get_u32( |
| pat_tb[NL80211_PKTPAT_OFFSET]); |
| if (pkt_offset > wowlan->max_pkt_offset) |
| goto error; |
| new_triggers.patterns[i].pkt_offset = pkt_offset; |
| |
| mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
| if (!mask_pat) { |
| err = -ENOMEM; |
| goto error; |
| } |
| new_triggers.patterns[i].mask = mask_pat; |
| memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), |
| mask_len); |
| mask_pat += mask_len; |
| new_triggers.patterns[i].pattern = mask_pat; |
| new_triggers.patterns[i].pattern_len = pat_len; |
| memcpy(mask_pat, |
| nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
| pat_len); |
| i++; |
| } |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
| regular = true; |
| err = nl80211_parse_wowlan_tcp( |
| rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], |
| &new_triggers); |
| if (err) |
| goto error; |
| } |
| |
| if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) { |
| regular = true; |
| err = nl80211_parse_wowlan_nd( |
| rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT], |
| &new_triggers); |
| if (err) |
| goto error; |
| } |
| |
| /* The 'any' trigger means the device continues operating more or less |
| * as in its normal operation mode and wakes up the host on most of the |
| * normal interrupts (like packet RX, ...) |
| * It therefore makes little sense to combine with the more constrained |
| * wakeup trigger modes. |
| */ |
| if (new_triggers.any && regular) { |
| err = -EINVAL; |
| goto error; |
| } |
| |
| ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
| if (!ntrig) { |
| err = -ENOMEM; |
| goto error; |
| } |
| cfg80211_rdev_free_wowlan(rdev); |
| rdev->wiphy.wowlan_config = ntrig; |
| |
| set_wakeup: |
| if (rdev->ops->set_wakeup && |
| prev_enabled != !!rdev->wiphy.wowlan_config) |
| rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); |
| |
| return 0; |
| error: |
| for (i = 0; i < new_triggers.n_patterns; i++) |
| kfree(new_triggers.patterns[i].mask); |
| kfree(new_triggers.patterns); |
| if (new_triggers.tcp && new_triggers.tcp->sock) |
| sock_release(new_triggers.tcp->sock); |
| kfree(new_triggers.tcp); |
| kfree(new_triggers.nd_config); |
| return err; |
| } |
| #endif |
| |
| static int nl80211_send_coalesce_rules(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev) |
| { |
| struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; |
| int i, j, pat_len; |
| struct cfg80211_coalesce_rules *rule; |
| |
| if (!rdev->coalesce->n_rules) |
| return 0; |
| |
| nl_rules = nla_nest_start_noflag(msg, NL80211_ATTR_COALESCE_RULE); |
| if (!nl_rules) |
| return -ENOBUFS; |
| |
| for (i = 0; i < rdev->coalesce->n_rules; i++) { |
| nl_rule = nla_nest_start_noflag(msg, i + 1); |
| if (!nl_rule) |
| return -ENOBUFS; |
| |
| rule = &rdev->coalesce->rules[i]; |
| if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, |
| rule->delay)) |
| return -ENOBUFS; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, |
| rule->condition)) |
| return -ENOBUFS; |
| |
| nl_pats = nla_nest_start_noflag(msg, |
| NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); |
| if (!nl_pats) |
| return -ENOBUFS; |
| |
| for (j = 0; j < rule->n_patterns; j++) { |
| nl_pat = nla_nest_start_noflag(msg, j + 1); |
| if (!nl_pat) |
| return -ENOBUFS; |
| pat_len = rule->patterns[j].pattern_len; |
| if (nla_put(msg, NL80211_PKTPAT_MASK, |
| DIV_ROUND_UP(pat_len, 8), |
| rule->patterns[j].mask) || |
| nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
| rule->patterns[j].pattern) || |
| nla_put_u32(msg, NL80211_PKTPAT_OFFSET, |
| rule->patterns[j].pkt_offset)) |
| return -ENOBUFS; |
| nla_nest_end(msg, nl_pat); |
| } |
| nla_nest_end(msg, nl_pats); |
| nla_nest_end(msg, nl_rule); |
| } |
| nla_nest_end(msg, nl_rules); |
| |
| return 0; |
| } |
| |
| static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct sk_buff *msg; |
| void *hdr; |
| |
| if (!rdev->wiphy.coalesce) |
| return -EOPNOTSUPP; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_COALESCE); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) |
| { |
| struct cfg80211_coalesce *coalesce = rdev->coalesce; |
| int i, j; |
| struct cfg80211_coalesce_rules *rule; |
| |
| if (!coalesce) |
| return; |
| |
| for (i = 0; i < coalesce->n_rules; i++) { |
| rule = &coalesce->rules[i]; |
| for (j = 0; j < rule->n_patterns; j++) |
| kfree(rule->patterns[j].mask); |
| kfree(rule->patterns); |
| } |
| kfree(coalesce->rules); |
| kfree(coalesce); |
| rdev->coalesce = NULL; |
| } |
| |
| static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, |
| struct nlattr *rule, |
| struct cfg80211_coalesce_rules *new_rule) |
| { |
| int err, i; |
| const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; |
| struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; |
| int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; |
| struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
| |
| err = nla_parse_nested_deprecated(tb, NL80211_ATTR_COALESCE_RULE_MAX, |
| rule, nl80211_coalesce_policy, NULL); |
| if (err) |
| return err; |
| |
| if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) |
| new_rule->delay = |
| nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); |
| if (new_rule->delay > coalesce->max_delay) |
| return -EINVAL; |
| |
| if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) |
| new_rule->condition = |
| nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); |
| |
| if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) |
| return -EINVAL; |
| |
| nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], |
| rem) |
| n_patterns++; |
| if (n_patterns > coalesce->n_patterns) |
| return -EINVAL; |
| |
| new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), |
| GFP_KERNEL); |
| if (!new_rule->patterns) |
| return -ENOMEM; |
| |
| new_rule->n_patterns = n_patterns; |
| i = 0; |
| |
| nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], |
| rem) { |
| u8 *mask_pat; |
| |
| err = nla_parse_nested_deprecated(pat_tb, MAX_NL80211_PKTPAT, |
| pat, |
| nl80211_packet_pattern_policy, |
| NULL); |
| if (err) |
| return err; |
| |
| if (!pat_tb[NL80211_PKTPAT_MASK] || |
| !pat_tb[NL80211_PKTPAT_PATTERN]) |
| return -EINVAL; |
| pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
| mask_len = DIV_ROUND_UP(pat_len, 8); |
| if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
| return -EINVAL; |
| if (pat_len > coalesce->pattern_max_len || |
| pat_len < coalesce->pattern_min_len) |
| return -EINVAL; |
| |
| if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
| pkt_offset = 0; |
| else |
| pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); |
| if (pkt_offset > coalesce->max_pkt_offset) |
| return -EINVAL; |
| new_rule->patterns[i].pkt_offset = pkt_offset; |
| |
| mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
| if (!mask_pat) |
| return -ENOMEM; |
| |
| new_rule->patterns[i].mask = mask_pat; |
| memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), |
| mask_len); |
| |
| mask_pat += mask_len; |
| new_rule->patterns[i].pattern = mask_pat; |
| new_rule->patterns[i].pattern_len = pat_len; |
| memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
| pat_len); |
| i++; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; |
| struct cfg80211_coalesce new_coalesce = {}; |
| struct cfg80211_coalesce *n_coalesce; |
| int err, rem_rule, n_rules = 0, i, j; |
| struct nlattr *rule; |
| struct cfg80211_coalesce_rules *tmp_rule; |
| |
| if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { |
| cfg80211_rdev_free_coalesce(rdev); |
| rdev_set_coalesce(rdev, NULL); |
| return 0; |
| } |
| |
| nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], |
| rem_rule) |
| n_rules++; |
| if (n_rules > coalesce->n_rules) |
| return -EINVAL; |
| |
| new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), |
| GFP_KERNEL); |
| if (!new_coalesce.rules) |
| return -ENOMEM; |
| |
| new_coalesce.n_rules = n_rules; |
| i = 0; |
| |
| nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], |
| rem_rule) { |
| err = nl80211_parse_coalesce_rule(rdev, rule, |
| &new_coalesce.rules[i]); |
| if (err) |
| goto error; |
| |
| i++; |
| } |
| |
| err = rdev_set_coalesce(rdev, &new_coalesce); |
| if (err) |
| goto error; |
| |
| n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); |
| if (!n_coalesce) { |
| err = -ENOMEM; |
| goto error; |
| } |
| cfg80211_rdev_free_coalesce(rdev); |
| rdev->coalesce = n_coalesce; |
| |
| return 0; |
| error: |
| for (i = 0; i < new_coalesce.n_rules; i++) { |
| tmp_rule = &new_coalesce.rules[i]; |
| for (j = 0; j < tmp_rule->n_patterns; j++) |
| kfree(tmp_rule->patterns[j].mask); |
| kfree(tmp_rule->patterns); |
| } |
| kfree(new_coalesce.rules); |
| |
| return err; |
| } |
| |
| static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct nlattr *tb[NUM_NL80211_REKEY_DATA]; |
| struct cfg80211_gtk_rekey_data rekey_data = {}; |
| int err; |
| |
| if (!info->attrs[NL80211_ATTR_REKEY_DATA]) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(tb, MAX_NL80211_REKEY_DATA, |
| info->attrs[NL80211_ATTR_REKEY_DATA], |
| nl80211_rekey_policy, info->extack); |
| if (err) |
| return err; |
| |
| if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] || |
| !tb[NL80211_REKEY_DATA_KCK]) |
| return -EINVAL; |
| if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN && |
| !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK && |
| nla_len(tb[NL80211_REKEY_DATA_KEK]) == NL80211_KEK_EXT_LEN)) |
| return -ERANGE; |
| if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN && |
| !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK && |
| nla_len(tb[NL80211_REKEY_DATA_KCK]) == NL80211_KCK_EXT_LEN) && |
| !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_EXT_KCK_32 && |
| nla_len(tb[NL80211_REKEY_DATA_KCK]) == NL80211_KCK_EXT_LEN_32)) |
| return -ERANGE; |
| |
| rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]); |
| rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]); |
| rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]); |
| rekey_data.kek_len = nla_len(tb[NL80211_REKEY_DATA_KEK]); |
| rekey_data.kck_len = nla_len(tb[NL80211_REKEY_DATA_KCK]); |
| if (tb[NL80211_REKEY_DATA_AKM]) |
| rekey_data.akm = nla_get_u32(tb[NL80211_REKEY_DATA_AKM]); |
| |
| wdev_lock(wdev); |
| if (!wdev->connected) { |
| err = -ENOTCONN; |
| goto out; |
| } |
| |
| if (!rdev->ops->set_rekey_data) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
| out: |
| wdev_unlock(wdev); |
| return err; |
| } |
| |
| static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| if (wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EINVAL; |
| |
| if (wdev->ap_unexpected_nlportid) |
| return -EBUSY; |
| |
| wdev->ap_unexpected_nlportid = info->snd_portid; |
| return 0; |
| } |
| |
| static int nl80211_probe_client(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct sk_buff *msg; |
| void *hdr; |
| const u8 *addr; |
| u64 cookie; |
| int err; |
| |
| if (wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!rdev->ops->probe_client) |
| return -EOPNOTSUPP; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_PROBE_CLIENT); |
| if (!hdr) { |
| err = -ENOBUFS; |
| goto free_msg; |
| } |
| |
| addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| err = rdev_probe_client(rdev, dev, addr, &cookie); |
| if (err) |
| goto free_msg; |
| |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| err = -ENOBUFS; |
| free_msg: |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct cfg80211_beacon_registration *reg, *nreg; |
| int rv; |
| |
| if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) |
| return -EOPNOTSUPP; |
| |
| nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
| if (!nreg) |
| return -ENOMEM; |
| |
| /* First, check if already registered. */ |
| spin_lock_bh(&rdev->beacon_registrations_lock); |
| list_for_each_entry(reg, &rdev->beacon_registrations, list) { |
| if (reg->nlportid == info->snd_portid) { |
| rv = -EALREADY; |
| goto out_err; |
| } |
| } |
| /* Add it to the list */ |
| nreg->nlportid = info->snd_portid; |
| list_add(&nreg->list, &rdev->beacon_registrations); |
| |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| |
| return 0; |
| out_err: |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| kfree(nreg); |
| return rv; |
| } |
| |
| static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| int err; |
| |
| if (!rdev->ops->start_p2p_device) |
| return -EOPNOTSUPP; |
| |
| if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) |
| return -EOPNOTSUPP; |
| |
| if (wdev_running(wdev)) |
| return 0; |
| |
| if (rfkill_blocked(rdev->wiphy.rfkill)) |
| return -ERFKILL; |
| |
| err = rdev_start_p2p_device(rdev, wdev); |
| if (err) |
| return err; |
| |
| wdev->is_running = true; |
| rdev->opencount++; |
| |
| return 0; |
| } |
| |
| static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->stop_p2p_device) |
| return -EOPNOTSUPP; |
| |
| cfg80211_stop_p2p_device(rdev, wdev); |
| |
| return 0; |
| } |
| |
| static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct cfg80211_nan_conf conf = {}; |
| int err; |
| |
| if (wdev->iftype != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (wdev_running(wdev)) |
| return -EEXIST; |
| |
| if (rfkill_blocked(rdev->wiphy.rfkill)) |
| return -ERFKILL; |
| |
| if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) |
| return -EINVAL; |
| |
| conf.master_pref = |
| nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]); |
| |
| if (info->attrs[NL80211_ATTR_BANDS]) { |
| u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]); |
| |
| if (bands & ~(u32)wdev->wiphy->nan_supported_bands) |
| return -EOPNOTSUPP; |
| |
| if (bands && !(bands & BIT(NL80211_BAND_2GHZ))) |
| return -EINVAL; |
| |
| conf.bands = bands; |
| } |
| |
| err = rdev_start_nan(rdev, wdev, &conf); |
| if (err) |
| return err; |
| |
| wdev->is_running = true; |
| rdev->opencount++; |
| |
| return 0; |
| } |
| |
| static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| if (wdev->iftype != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| cfg80211_stop_nan(rdev, wdev); |
| |
| return 0; |
| } |
| |
| static int validate_nan_filter(struct nlattr *filter_attr) |
| { |
| struct nlattr *attr; |
| int len = 0, n_entries = 0, rem; |
| |
| nla_for_each_nested(attr, filter_attr, rem) { |
| len += nla_len(attr); |
| n_entries++; |
| } |
| |
| if (len >= U8_MAX) |
| return -EINVAL; |
| |
| return n_entries; |
| } |
| |
| static int handle_nan_filter(struct nlattr *attr_filter, |
| struct cfg80211_nan_func *func, |
| bool tx) |
| { |
| struct nlattr *attr; |
| int n_entries, rem, i; |
| struct cfg80211_nan_func_filter *filter; |
| |
| n_entries = validate_nan_filter(attr_filter); |
| if (n_entries < 0) |
| return n_entries; |
| |
| BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters)); |
| |
| filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL); |
| if (!filter) |
| return -ENOMEM; |
| |
| i = 0; |
| nla_for_each_nested(attr, attr_filter, rem) { |
| filter[i].filter = nla_memdup(attr, GFP_KERNEL); |
| if (!filter[i].filter) |
| goto err; |
| |
| filter[i].len = nla_len(attr); |
| i++; |
| } |
| if (tx) { |
| func->num_tx_filters = n_entries; |
| func->tx_filters = filter; |
| } else { |
| func->num_rx_filters = n_entries; |
| func->rx_filters = filter; |
| } |
| |
| return 0; |
| |
| err: |
| i = 0; |
| nla_for_each_nested(attr, attr_filter, rem) { |
| kfree(filter[i].filter); |
| i++; |
| } |
| kfree(filter); |
| return -ENOMEM; |
| } |
| |
| static int nl80211_nan_add_func(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr; |
| struct cfg80211_nan_func *func; |
| struct sk_buff *msg = NULL; |
| void *hdr = NULL; |
| int err = 0; |
| |
| if (wdev->iftype != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!wdev_running(wdev)) |
| return -ENOTCONN; |
| |
| if (!info->attrs[NL80211_ATTR_NAN_FUNC]) |
| return -EINVAL; |
| |
| err = nla_parse_nested_deprecated(tb, NL80211_NAN_FUNC_ATTR_MAX, |
| info->attrs[NL80211_ATTR_NAN_FUNC], |
| nl80211_nan_func_policy, |
| info->extack); |
| if (err) |
| return err; |
| |
| func = kzalloc(sizeof(*func), GFP_KERNEL); |
| if (!func) |
| return -ENOMEM; |
| |
| func->cookie = cfg80211_assign_cookie(rdev); |
| |
| if (!tb[NL80211_NAN_FUNC_TYPE]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| |
| func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]); |
| |
| if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]), |
| sizeof(func->service_id)); |
| |
| func->close_range = |
| nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]); |
| |
| if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) { |
| func->serv_spec_info_len = |
| nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]); |
| func->serv_spec_info = |
| kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]), |
| func->serv_spec_info_len, |
| GFP_KERNEL); |
| if (!func->serv_spec_info) { |
| err = -ENOMEM; |
| goto out; |
| } |
| } |
| |
| if (tb[NL80211_NAN_FUNC_TTL]) |
| func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]); |
| |
| switch (func->type) { |
| case NL80211_NAN_FUNC_PUBLISH: |
| if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| func->publish_type = |
| nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]); |
| func->publish_bcast = |
| nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]); |
| |
| if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) && |
| func->publish_bcast) { |
| err = -EINVAL; |
| goto out; |
| } |
| break; |
| case NL80211_NAN_FUNC_SUBSCRIBE: |
| func->subscribe_active = |
| nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]); |
| break; |
| case NL80211_NAN_FUNC_FOLLOW_UP: |
| if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] || |
| !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] || |
| !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| func->followup_id = |
| nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]); |
| func->followup_reqid = |
| nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]); |
| memcpy(func->followup_dest.addr, |
| nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]), |
| sizeof(func->followup_dest.addr)); |
| if (func->ttl) { |
| err = -EINVAL; |
| goto out; |
| } |
| break; |
| default: |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (tb[NL80211_NAN_FUNC_SRF]) { |
| struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR]; |
| |
| err = nla_parse_nested_deprecated(srf_tb, |
| NL80211_NAN_SRF_ATTR_MAX, |
| tb[NL80211_NAN_FUNC_SRF], |
| nl80211_nan_srf_policy, |
| info->extack); |
| if (err) |
| goto out; |
| |
| func->srf_include = |
| nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]); |
| |
| if (srf_tb[NL80211_NAN_SRF_BF]) { |
| if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] || |
| !srf_tb[NL80211_NAN_SRF_BF_IDX]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| func->srf_bf_len = |
| nla_len(srf_tb[NL80211_NAN_SRF_BF]); |
| func->srf_bf = |
| kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]), |
| func->srf_bf_len, GFP_KERNEL); |
| if (!func->srf_bf) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| func->srf_bf_idx = |
| nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]); |
| } else { |
| struct nlattr *attr, *mac_attr = |
| srf_tb[NL80211_NAN_SRF_MAC_ADDRS]; |
| int n_entries, rem, i = 0; |
| |
| if (!mac_attr) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| n_entries = validate_acl_mac_addrs(mac_attr); |
| if (n_entries <= 0) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| func->srf_num_macs = n_entries; |
| func->srf_macs = |
| kcalloc(n_entries, sizeof(*func->srf_macs), |
| GFP_KERNEL); |
| if (!func->srf_macs) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| nla_for_each_nested(attr, mac_attr, rem) |
| memcpy(func->srf_macs[i++].addr, nla_data(attr), |
| sizeof(*func->srf_macs)); |
| } |
| } |
| |
| if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) { |
| err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER], |
| func, true); |
| if (err) |
| goto out; |
| } |
| |
| if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) { |
| err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER], |
| func, false); |
| if (err) |
| goto out; |
| } |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_ADD_NAN_FUNCTION); |
| /* This can't really happen - we just allocated 4KB */ |
| if (WARN_ON(!hdr)) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| err = rdev_add_nan_func(rdev, wdev, func); |
| out: |
| if (err < 0) { |
| cfg80211_free_nan_func(func); |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| /* propagate the instance id and cookie to userspace */ |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| func_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_FUNC); |
| if (!func_attr) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, |
| func->instance_id)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, func_attr); |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_nan_del_func(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| u64 cookie; |
| |
| if (wdev->iftype != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!wdev_running(wdev)) |
| return -ENOTCONN; |
| |
| if (!info->attrs[NL80211_ATTR_COOKIE]) |
| return -EINVAL; |
| |
| cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
| |
| rdev_del_nan_func(rdev, wdev, cookie); |
| |
| return 0; |
| } |
| |
| static int nl80211_nan_change_config(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| struct cfg80211_nan_conf conf = {}; |
| u32 changed = 0; |
| |
| if (wdev->iftype != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!wdev_running(wdev)) |
| return -ENOTCONN; |
| |
| if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) { |
| conf.master_pref = |
| nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]); |
| if (conf.master_pref <= 1 || conf.master_pref == 255) |
| return -EINVAL; |
| |
| changed |= CFG80211_NAN_CONF_CHANGED_PREF; |
| } |
| |
| if (info->attrs[NL80211_ATTR_BANDS]) { |
| u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]); |
| |
| if (bands & ~(u32)wdev->wiphy->nan_supported_bands) |
| return -EOPNOTSUPP; |
| |
| if (bands && !(bands & BIT(NL80211_BAND_2GHZ))) |
| return -EINVAL; |
| |
| conf.bands = bands; |
| changed |= CFG80211_NAN_CONF_CHANGED_BANDS; |
| } |
| |
| if (!changed) |
| return -EINVAL; |
| |
| return rdev_nan_change_conf(rdev, wdev, &conf, changed); |
| } |
| |
| void cfg80211_nan_match(struct wireless_dev *wdev, |
| struct cfg80211_nan_match_params *match, gfp_t gfp) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct nlattr *match_attr, *local_func_attr, *peer_func_attr; |
| struct sk_buff *msg; |
| void *hdr; |
| |
| if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr)) |
| return; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie, |
| NL80211_ATTR_PAD) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr)) |
| goto nla_put_failure; |
| |
| match_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_MATCH); |
| if (!match_attr) |
| goto nla_put_failure; |
| |
| local_func_attr = nla_nest_start_noflag(msg, |
| NL80211_NAN_MATCH_FUNC_LOCAL); |
| if (!local_func_attr) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, local_func_attr); |
| |
| peer_func_attr = nla_nest_start_noflag(msg, |
| NL80211_NAN_MATCH_FUNC_PEER); |
| if (!peer_func_attr) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) || |
| nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id)) |
| goto nla_put_failure; |
| |
| if (match->info && match->info_len && |
| nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len, |
| match->info)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, peer_func_attr); |
| nla_nest_end(msg, match_attr); |
| genlmsg_end(msg, hdr); |
| |
| if (!wdev->owner_nlportid) |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), |
| msg, 0, NL80211_MCGRP_NAN, gfp); |
| else |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, |
| wdev->owner_nlportid); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_nan_match); |
| |
| void cfg80211_nan_func_terminated(struct wireless_dev *wdev, |
| u8 inst_id, |
| enum nl80211_nan_func_term_reason reason, |
| u64 cookie, gfp_t gfp) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| struct nlattr *func_attr; |
| void *hdr; |
| |
| if (WARN_ON(!inst_id)) |
| return; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| func_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_FUNC); |
| if (!func_attr) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) || |
| nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, func_attr); |
| genlmsg_end(msg, hdr); |
| |
| if (!wdev->owner_nlportid) |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), |
| msg, 0, NL80211_MCGRP_NAN, gfp); |
| else |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, |
| wdev->owner_nlportid); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_nan_func_terminated); |
| |
| static int nl80211_get_protocol_features(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| void *hdr; |
| struct sk_buff *msg; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_PROTOCOL_FEATURES); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, |
| NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| kfree_skb(msg); |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct cfg80211_update_ft_ies_params ft_params; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| if (!rdev->ops->update_ft_ies) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MDID] || |
| !info->attrs[NL80211_ATTR_IE]) |
| return -EINVAL; |
| |
| memset(&ft_params, 0, sizeof(ft_params)); |
| ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); |
| ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| |
| return rdev_update_ft_ies(rdev, dev, &ft_params); |
| } |
| |
| static int nl80211_crit_protocol_start(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; |
| u16 duration; |
| int ret; |
| |
| if (!rdev->ops->crit_proto_start) |
| return -EOPNOTSUPP; |
| |
| if (WARN_ON(!rdev->ops->crit_proto_stop)) |
| return -EINVAL; |
| |
| if (rdev->crit_proto_nlportid) |
| return -EBUSY; |
| |
| /* determine protocol if provided */ |
| if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) |
| proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); |
| |
| if (proto >= NUM_NL80211_CRIT_PROTO) |
| return -EINVAL; |
| |
| /* timeout must be provided */ |
| if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) |
| return -EINVAL; |
| |
| duration = |
| nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); |
| |
| ret = rdev_crit_proto_start(rdev, wdev, proto, duration); |
| if (!ret) |
| rdev->crit_proto_nlportid = info->snd_portid; |
| |
| return ret; |
| } |
| |
| static int nl80211_crit_protocol_stop(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| if (!rdev->ops->crit_proto_stop) |
| return -EOPNOTSUPP; |
| |
| if (rdev->crit_proto_nlportid) { |
| rdev->crit_proto_nlportid = 0; |
| rdev_crit_proto_stop(rdev, wdev); |
| } |
| return 0; |
| } |
| |
| static int nl80211_vendor_check_policy(const struct wiphy_vendor_command *vcmd, |
| struct nlattr *attr, |
| struct netlink_ext_ack *extack) |
| { |
| if (vcmd->policy == VENDOR_CMD_RAW_DATA) { |
| if (attr->nla_type & NLA_F_NESTED) { |
| NL_SET_ERR_MSG_ATTR(extack, attr, |
| "unexpected nested data"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| if (!(attr->nla_type & NLA_F_NESTED)) { |
| NL_SET_ERR_MSG_ATTR(extack, attr, "expected nested data"); |
| return -EINVAL; |
| } |
| |
| return nla_validate_nested(attr, vcmd->maxattr, vcmd->policy, extack); |
| } |
| |
| static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct wireless_dev *wdev = |
| __cfg80211_wdev_from_attrs(rdev, genl_info_net(info), |
| info->attrs); |
| int i, err; |
| u32 vid, subcmd; |
| |
| if (!rdev->wiphy.vendor_commands) |
| return -EOPNOTSUPP; |
| |
| if (IS_ERR(wdev)) { |
| err = PTR_ERR(wdev); |
| if (err != -EINVAL) |
| return err; |
| wdev = NULL; |
| } else if (wdev->wiphy != &rdev->wiphy) { |
| return -EINVAL; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_VENDOR_ID] || |
| !info->attrs[NL80211_ATTR_VENDOR_SUBCMD]) |
| return -EINVAL; |
| |
| vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]); |
| subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]); |
| for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { |
| const struct wiphy_vendor_command *vcmd; |
| void *data = NULL; |
| int len = 0; |
| |
| vcmd = &rdev->wiphy.vendor_commands[i]; |
| |
| if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) |
| continue; |
| |
| if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | |
| WIPHY_VENDOR_CMD_NEED_NETDEV)) { |
| if (!wdev) |
| return -EINVAL; |
| if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && |
| !wdev->netdev) |
| return -EINVAL; |
| |
| if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { |
| if (!wdev_running(wdev)) |
| return -ENETDOWN; |
| } |
| } else { |
| wdev = NULL; |
| } |
| |
| if (!vcmd->doit) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_VENDOR_DATA]) { |
| data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]); |
| len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]); |
| |
| err = nl80211_vendor_check_policy(vcmd, |
| info->attrs[NL80211_ATTR_VENDOR_DATA], |
| info->extack); |
| if (err) |
| return err; |
| } |
| |
| rdev->cur_cmd_info = info; |
| err = vcmd->doit(&rdev->wiphy, wdev, data, len); |
| rdev->cur_cmd_info = NULL; |
| return err; |
| } |
| |
| return -EOPNOTSUPP; |
| } |
| |
| static int nl80211_prepare_vendor_dump(struct sk_buff *skb, |
| struct netlink_callback *cb, |
| struct cfg80211_registered_device **rdev, |
| struct wireless_dev **wdev) |
| { |
| struct nlattr **attrbuf; |
| u32 vid, subcmd; |
| unsigned int i; |
| int vcmd_idx = -1; |
| int err; |
| void *data = NULL; |
| unsigned int data_len = 0; |
| |
| if (cb->args[0]) { |
| /* subtract the 1 again here */ |
| struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); |
| struct wireless_dev *tmp; |
| |
| if (!wiphy) |
| return -ENODEV; |
| *rdev = wiphy_to_rdev(wiphy); |
| *wdev = NULL; |
| |
| if (cb->args[1]) { |
| list_for_each_entry(tmp, &wiphy->wdev_list, list) { |
| if (tmp->identifier == cb->args[1] - 1) { |
| *wdev = tmp; |
| break; |
| } |
| } |
| } |
| |
| /* keep rtnl locked in successful case */ |
| return 0; |
| } |
| |
| attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL); |
| if (!attrbuf) |
| return -ENOMEM; |
| |
| err = nlmsg_parse_deprecated(cb->nlh, |
| GENL_HDRLEN + nl80211_fam.hdrsize, |
| attrbuf, nl80211_fam.maxattr, |
| nl80211_policy, NULL); |
| if (err) |
| goto out; |
| |
| if (!attrbuf[NL80211_ATTR_VENDOR_ID] || |
| !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| *wdev = __cfg80211_wdev_from_attrs(NULL, sock_net(skb->sk), attrbuf); |
| if (IS_ERR(*wdev)) |
| *wdev = NULL; |
| |
| *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf); |
| if (IS_ERR(*rdev)) { |
| err = PTR_ERR(*rdev); |
| goto out; |
| } |
| |
| vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]); |
| subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]); |
| |
| for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) { |
| const struct wiphy_vendor_command *vcmd; |
| |
| vcmd = &(*rdev)->wiphy.vendor_commands[i]; |
| |
| if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) |
| continue; |
| |
| if (!vcmd->dumpit) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| vcmd_idx = i; |
| break; |
| } |
| |
| if (vcmd_idx < 0) { |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| if (attrbuf[NL80211_ATTR_VENDOR_DATA]) { |
| data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]); |
| data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]); |
| |
| err = nl80211_vendor_check_policy( |
| &(*rdev)->wiphy.vendor_commands[vcmd_idx], |
| attrbuf[NL80211_ATTR_VENDOR_DATA], |
| cb->extack); |
| if (err) |
| goto out; |
| } |
| |
| /* 0 is the first index - add 1 to parse only once */ |
| cb->args[0] = (*rdev)->wiphy_idx + 1; |
| /* add 1 to know if it was NULL */ |
| cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0; |
| cb->args[2] = vcmd_idx; |
| cb->args[3] = (unsigned long)data; |
| cb->args[4] = data_len; |
| |
| /* keep rtnl locked in successful case */ |
| err = 0; |
| out: |
| kfree(attrbuf); |
| return err; |
| } |
| |
| static int nl80211_vendor_cmd_dump(struct sk_buff *skb, |
| struct netlink_callback *cb) |
| { |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| unsigned int vcmd_idx; |
| const struct wiphy_vendor_command *vcmd; |
| void *data; |
| int data_len; |
| int err; |
| struct nlattr *vendor_data; |
| |
| rtnl_lock(); |
| err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev); |
| if (err) |
| goto out; |
| |
| vcmd_idx = cb->args[2]; |
| data = (void *)cb->args[3]; |
| data_len = cb->args[4]; |
| vcmd = &rdev->wiphy.vendor_commands[vcmd_idx]; |
| |
| if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | |
| WIPHY_VENDOR_CMD_NEED_NETDEV)) { |
| if (!wdev) { |
| err = -EINVAL; |
| goto out; |
| } |
| if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && |
| !wdev->netdev) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { |
| if (!wdev_running(wdev)) { |
| err = -ENETDOWN; |
| goto out; |
| } |
| } |
| } |
| |
| while (1) { |
| void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
| cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| NL80211_CMD_VENDOR); |
| if (!hdr) |
| break; |
| |
| if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV, |
| wdev_id(wdev), |
| NL80211_ATTR_PAD))) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } |
| |
| vendor_data = nla_nest_start_noflag(skb, |
| NL80211_ATTR_VENDOR_DATA); |
| if (!vendor_data) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } |
| |
| err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len, |
| (unsigned long *)&cb->args[5]); |
| nla_nest_end(skb, vendor_data); |
| |
| if (err == -ENOBUFS || err == -ENOENT) { |
| genlmsg_cancel(skb, hdr); |
| break; |
| } else if (err <= 0) { |
| genlmsg_cancel(skb, hdr); |
| goto out; |
| } |
| |
| genlmsg_end(skb, hdr); |
| } |
| |
| err = skb->len; |
| out: |
| rtnl_unlock(); |
| return err; |
| } |
| |
| struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, |
| enum nl80211_commands cmd, |
| enum nl80211_attrs attr, |
| int approxlen) |
| { |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| if (WARN_ON(!rdev->cur_cmd_info)) |
| return NULL; |
| |
| return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen, |
| rdev->cur_cmd_info->snd_portid, |
| rdev->cur_cmd_info->snd_seq, |
| cmd, attr, NULL, GFP_KERNEL); |
| } |
| EXPORT_SYMBOL(__cfg80211_alloc_reply_skb); |
| |
| int cfg80211_vendor_cmd_reply(struct sk_buff *skb) |
| { |
| struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; |
| void *hdr = ((void **)skb->cb)[1]; |
| struct nlattr *data = ((void **)skb->cb)[2]; |
| |
| /* clear CB data for netlink core to own from now on */ |
| memset(skb->cb, 0, sizeof(skb->cb)); |
| |
| if (WARN_ON(!rdev->cur_cmd_info)) { |
| kfree_skb(skb); |
| return -EINVAL; |
| } |
| |
| nla_nest_end(skb, data); |
| genlmsg_end(skb, hdr); |
| return genlmsg_reply(skb, rdev->cur_cmd_info); |
| } |
| EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply); |
| |
| unsigned int cfg80211_vendor_cmd_get_sender(struct wiphy *wiphy) |
| { |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| if (WARN_ON(!rdev->cur_cmd_info)) |
| return 0; |
| |
| return rdev->cur_cmd_info->snd_portid; |
| } |
| EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_get_sender); |
| |
| static int nl80211_set_qos_map(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct cfg80211_qos_map *qos_map = NULL; |
| struct net_device *dev = info->user_ptr[1]; |
| u8 *pos, len, num_des, des_len, des; |
| int ret; |
| |
| if (!rdev->ops->set_qos_map) |
| return -EOPNOTSUPP; |
| |
| if (info->attrs[NL80211_ATTR_QOS_MAP]) { |
| pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]); |
| len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]); |
| |
| if (len % 2) |
| return -EINVAL; |
| |
| qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL); |
| if (!qos_map) |
| return -ENOMEM; |
| |
| num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1; |
| if (num_des) { |
| des_len = num_des * |
| sizeof(struct cfg80211_dscp_exception); |
| memcpy(qos_map->dscp_exception, pos, des_len); |
| qos_map->num_des = num_des; |
| for (des = 0; des < num_des; des++) { |
| if (qos_map->dscp_exception[des].up > 7) { |
| kfree(qos_map); |
| return -EINVAL; |
| } |
| } |
| pos += des_len; |
| } |
| memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN); |
| } |
| |
| wdev_lock(dev->ieee80211_ptr); |
| ret = nl80211_key_allowed(dev->ieee80211_ptr); |
| if (!ret) |
| ret = rdev_set_qos_map(rdev, dev, qos_map); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| kfree(qos_map); |
| return ret; |
| } |
| |
| static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const u8 *peer; |
| u8 tsid, up; |
| u16 admitted_time = 0; |
| int err; |
| |
| if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] || |
| !info->attrs[NL80211_ATTR_USER_PRIO]) |
| return -EINVAL; |
| |
| tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); |
| up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]); |
| |
| /* WMM uses TIDs 0-7 even for TSPEC */ |
| if (tsid >= IEEE80211_FIRST_TSPEC_TSID) { |
| /* TODO: handle 802.11 TSPEC/admission control |
| * need more attributes for that (e.g. BA session requirement); |
| * change the WMM adminssion test above to allow both then |
| */ |
| return -EINVAL; |
| } |
| |
| peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) { |
| admitted_time = |
| nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]); |
| if (!admitted_time) |
| return -EINVAL; |
| } |
| |
| wdev_lock(wdev); |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (wdev->connected) |
| break; |
| err = -ENOTCONN; |
| goto out; |
| default: |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time); |
| |
| out: |
| wdev_unlock(wdev); |
| return err; |
| } |
| |
| static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const u8 *peer; |
| u8 tsid; |
| int err; |
| |
| if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); |
| peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| wdev_lock(wdev); |
| err = rdev_del_tx_ts(rdev, dev, tsid, peer); |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_tdls_channel_switch(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_chan_def chandef = {}; |
| const u8 *addr; |
| u8 oper_class; |
| int err; |
| |
| if (!rdev->ops->tdls_channel_switch || |
| !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) |
| return -EOPNOTSUPP; |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_MAC] || |
| !info->attrs[NL80211_ATTR_OPER_CLASS]) |
| return -EINVAL; |
| |
| err = nl80211_parse_chandef(rdev, info, &chandef); |
| if (err) |
| return err; |
| |
| /* |
| * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012 |
| * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the |
| * specification is not defined for them. |
| */ |
| if (chandef.chan->band == NL80211_BAND_2GHZ && |
| chandef.width != NL80211_CHAN_WIDTH_20_NOHT && |
| chandef.width != NL80211_CHAN_WIDTH_20) |
| return -EINVAL; |
| |
| /* we will be active on the TDLS link */ |
| if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
| wdev->iftype)) |
| return -EINVAL; |
| |
| /* don't allow switching to DFS channels */ |
| if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype)) |
| return -EINVAL; |
| |
| addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]); |
| |
| wdev_lock(wdev); |
| err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef); |
| wdev_unlock(wdev); |
| |
| return err; |
| } |
| |
| static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const u8 *addr; |
| |
| if (!rdev->ops->tdls_channel_switch || |
| !rdev->ops->tdls_cancel_channel_switch || |
| !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) |
| return -EOPNOTSUPP; |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| wdev_lock(wdev); |
| rdev_tdls_cancel_channel_switch(rdev, dev, addr); |
| wdev_unlock(wdev); |
| |
| return 0; |
| } |
| |
| static int nl80211_set_multicast_to_unicast(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const struct nlattr *nla; |
| bool enabled; |
| |
| if (!rdev->ops->set_multicast_to_unicast) |
| return -EOPNOTSUPP; |
| |
| if (wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EOPNOTSUPP; |
| |
| nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED]; |
| enabled = nla_get_flag(nla); |
| |
| return rdev_set_multicast_to_unicast(rdev, dev, enabled); |
| } |
| |
| static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_pmk_conf pmk_conf = {}; |
| int ret; |
| |
| if (wdev->iftype != NL80211_IFTYPE_STATION && |
| wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X)) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK]) |
| return -EINVAL; |
| |
| wdev_lock(wdev); |
| if (!wdev->connected) { |
| ret = -ENOTCONN; |
| goto out; |
| } |
| |
| pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| if (memcmp(pmk_conf.aa, wdev->u.client.connected_addr, ETH_ALEN)) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]); |
| pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]); |
| if (pmk_conf.pmk_len != WLAN_PMK_LEN && |
| pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| if (info->attrs[NL80211_ATTR_PMKR0_NAME]) |
| pmk_conf.pmk_r0_name = |
| nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]); |
| |
| ret = rdev_set_pmk(rdev, dev, &pmk_conf); |
| out: |
| wdev_unlock(wdev); |
| return ret; |
| } |
| |
| static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const u8 *aa; |
| int ret; |
| |
| if (wdev->iftype != NL80211_IFTYPE_STATION && |
| wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
| return -EOPNOTSUPP; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X)) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| wdev_lock(wdev); |
| aa = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| ret = rdev_del_pmk(rdev, dev, aa); |
| wdev_unlock(wdev); |
| |
| return ret; |
| } |
| |
| static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_external_auth_params params; |
| |
| if (!rdev->ops->external_auth) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_SSID] && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
| dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_BSSID]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_STATUS_CODE]) |
| return -EINVAL; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| if (info->attrs[NL80211_ATTR_SSID]) { |
| params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
| if (params.ssid.ssid_len == 0) |
| return -EINVAL; |
| memcpy(params.ssid.ssid, |
| nla_data(info->attrs[NL80211_ATTR_SSID]), |
| params.ssid.ssid_len); |
| } |
| |
| memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]), |
| ETH_ALEN); |
| |
| params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); |
| |
| if (info->attrs[NL80211_ATTR_PMKID]) |
| params.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
| |
| return rdev_external_auth(rdev, dev, ¶ms); |
| } |
| |
| static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info) |
| { |
| bool dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| const u8 *buf; |
| size_t len; |
| u8 *dest; |
| u16 proto; |
| bool noencrypt; |
| u64 cookie = 0; |
| int link_id; |
| int err; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211)) |
| return -EOPNOTSUPP; |
| |
| if (!rdev->ops->tx_control_port) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_FRAME] || |
| !info->attrs[NL80211_ATTR_MAC] || |
| !info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
| GENL_SET_ERR_MSG(info, "Frame, MAC or ethertype missing"); |
| return -EINVAL; |
| } |
| |
| wdev_lock(wdev); |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_MESH_POINT: |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (wdev->u.ibss.current_bss) |
| break; |
| err = -ENOTCONN; |
| goto out; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (wdev->connected) |
| break; |
| err = -ENOTCONN; |
| goto out; |
| default: |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| wdev_unlock(wdev); |
| |
| buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
| len = nla_len(info->attrs[NL80211_ATTR_FRAME]); |
| dest = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| proto = nla_get_u16(info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); |
| noencrypt = |
| nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]); |
| |
| link_id = nl80211_link_id_or_invalid(info->attrs); |
| |
| err = rdev_tx_control_port(rdev, dev, buf, len, |
| dest, cpu_to_be16(proto), noencrypt, link_id, |
| dont_wait_for_ack ? NULL : &cookie); |
| if (!err && !dont_wait_for_ack) |
| nl_set_extack_cookie_u64(info->extack, cookie); |
| return err; |
| out: |
| wdev_unlock(wdev); |
| return err; |
| } |
| |
| static int nl80211_get_ftm_responder_stats(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_ftm_responder_stats ftm_stats = {}; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct sk_buff *msg; |
| void *hdr; |
| struct nlattr *ftm_stats_attr; |
| int err; |
| |
| if (wdev->iftype != NL80211_IFTYPE_AP || |
| !wdev->links[link_id].ap.beacon_interval) |
| return -EOPNOTSUPP; |
| |
| err = rdev_get_ftm_responder_stats(rdev, dev, &ftm_stats); |
| if (err) |
| return err; |
| |
| if (!ftm_stats.filled) |
| return -ENODATA; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
| NL80211_CMD_GET_FTM_RESPONDER_STATS); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
| goto nla_put_failure; |
| |
| ftm_stats_attr = nla_nest_start_noflag(msg, |
| NL80211_ATTR_FTM_RESPONDER_STATS); |
| if (!ftm_stats_attr) |
| goto nla_put_failure; |
| |
| #define SET_FTM(field, name, type) \ |
| do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \ |
| nla_put_ ## type(msg, NL80211_FTM_STATS_ ## name, \ |
| ftm_stats.field)) \ |
| goto nla_put_failure; } while (0) |
| #define SET_FTM_U64(field, name) \ |
| do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \ |
| nla_put_u64_64bit(msg, NL80211_FTM_STATS_ ## name, \ |
| ftm_stats.field, NL80211_FTM_STATS_PAD)) \ |
| goto nla_put_failure; } while (0) |
| |
| SET_FTM(success_num, SUCCESS_NUM, u32); |
| SET_FTM(partial_num, PARTIAL_NUM, u32); |
| SET_FTM(failed_num, FAILED_NUM, u32); |
| SET_FTM(asap_num, ASAP_NUM, u32); |
| SET_FTM(non_asap_num, NON_ASAP_NUM, u32); |
| SET_FTM_U64(total_duration_ms, TOTAL_DURATION_MSEC); |
| SET_FTM(unknown_triggers_num, UNKNOWN_TRIGGERS_NUM, u32); |
| SET_FTM(reschedule_requests_num, RESCHEDULE_REQUESTS_NUM, u32); |
| SET_FTM(out_of_window_triggers_num, OUT_OF_WINDOW_TRIGGERS_NUM, u32); |
| #undef SET_FTM |
| |
| nla_nest_end(msg, ftm_stats_attr); |
| |
| genlmsg_end(msg, hdr); |
| return genlmsg_reply(msg, info); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct cfg80211_update_owe_info owe_info; |
| struct net_device *dev = info->user_ptr[1]; |
| |
| if (!rdev->ops->update_owe_info) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_STATUS_CODE] || |
| !info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| memset(&owe_info, 0, sizeof(owe_info)); |
| owe_info.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); |
| nla_memcpy(owe_info.peer, info->attrs[NL80211_ATTR_MAC], ETH_ALEN); |
| |
| if (info->attrs[NL80211_ATTR_IE]) { |
| owe_info.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
| owe_info.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
| } |
| |
| return rdev_update_owe_info(rdev, dev, &owe_info); |
| } |
| |
| static int nl80211_probe_mesh_link(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct station_info sinfo = {}; |
| const u8 *buf; |
| size_t len; |
| u8 *dest; |
| int err; |
| |
| if (!rdev->ops->probe_mesh_link || !rdev->ops->get_station) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MAC] || |
| !info->attrs[NL80211_ATTR_FRAME]) { |
| GENL_SET_ERR_MSG(info, "Frame or MAC missing"); |
| return -EINVAL; |
| } |
| |
| if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
| return -EOPNOTSUPP; |
| |
| dest = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
| len = nla_len(info->attrs[NL80211_ATTR_FRAME]); |
| |
| if (len < sizeof(struct ethhdr)) |
| return -EINVAL; |
| |
| if (!ether_addr_equal(buf, dest) || is_multicast_ether_addr(buf) || |
| !ether_addr_equal(buf + ETH_ALEN, dev->dev_addr)) |
| return -EINVAL; |
| |
| err = rdev_get_station(rdev, dev, dest, &sinfo); |
| if (err) |
| return err; |
| |
| cfg80211_sinfo_release_content(&sinfo); |
| |
| return rdev_probe_mesh_link(rdev, dev, dest, buf, len); |
| } |
| |
| static int parse_tid_conf(struct cfg80211_registered_device *rdev, |
| struct nlattr *attrs[], struct net_device *dev, |
| struct cfg80211_tid_cfg *tid_conf, |
| struct genl_info *info, const u8 *peer, |
| unsigned int link_id) |
| { |
| struct netlink_ext_ack *extack = info->extack; |
| u64 mask; |
| int err; |
| |
| if (!attrs[NL80211_TID_CONFIG_ATTR_TIDS]) |
| return -EINVAL; |
| |
| tid_conf->config_override = |
| nla_get_flag(attrs[NL80211_TID_CONFIG_ATTR_OVERRIDE]); |
| tid_conf->tids = nla_get_u16(attrs[NL80211_TID_CONFIG_ATTR_TIDS]); |
| |
| if (tid_conf->config_override) { |
| if (rdev->ops->reset_tid_config) { |
| err = rdev_reset_tid_config(rdev, dev, peer, |
| tid_conf->tids); |
| if (err) |
| return err; |
| } else { |
| return -EINVAL; |
| } |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_NOACK]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_NOACK); |
| tid_conf->noack = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_NOACK]); |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_RETRY_SHORT]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RETRY_SHORT); |
| tid_conf->retry_short = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RETRY_SHORT]); |
| |
| if (tid_conf->retry_short > rdev->wiphy.max_data_retry_count) |
| return -EINVAL; |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_RETRY_LONG]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG); |
| tid_conf->retry_long = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RETRY_LONG]); |
| |
| if (tid_conf->retry_long > rdev->wiphy.max_data_retry_count) |
| return -EINVAL; |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_AMPDU_CTRL]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL); |
| tid_conf->ampdu = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_AMPDU_CTRL]); |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL); |
| tid_conf->rtscts = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]); |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_AMSDU_CTRL]) { |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_AMSDU_CTRL); |
| tid_conf->amsdu = |
| nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_AMSDU_CTRL]); |
| } |
| |
| if (attrs[NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE]) { |
| u32 idx = NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE, attr; |
| |
| tid_conf->txrate_type = nla_get_u8(attrs[idx]); |
| |
| if (tid_conf->txrate_type != NL80211_TX_RATE_AUTOMATIC) { |
| attr = NL80211_TID_CONFIG_ATTR_TX_RATE; |
| err = nl80211_parse_tx_bitrate_mask(info, attrs, attr, |
| &tid_conf->txrate_mask, dev, |
| true, link_id); |
| if (err) |
| return err; |
| |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE); |
| } |
| tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE); |
| } |
| |
| if (peer) |
| mask = rdev->wiphy.tid_config_support.peer; |
| else |
| mask = rdev->wiphy.tid_config_support.vif; |
| |
| if (tid_conf->mask & ~mask) { |
| NL_SET_ERR_MSG(extack, "unsupported TID configuration"); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int nl80211_set_tid_config(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct nlattr *attrs[NL80211_TID_CONFIG_ATTR_MAX + 1]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_tid_config *tid_config; |
| struct nlattr *tid; |
| int conf_idx = 0, rem_conf; |
| int ret = -EINVAL; |
| u32 num_conf = 0; |
| |
| if (!info->attrs[NL80211_ATTR_TID_CONFIG]) |
| return -EINVAL; |
| |
| if (!rdev->ops->set_tid_config) |
| return -EOPNOTSUPP; |
| |
| nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG], |
| rem_conf) |
| num_conf++; |
| |
| tid_config = kzalloc(struct_size(tid_config, tid_conf, num_conf), |
| GFP_KERNEL); |
| if (!tid_config) |
| return -ENOMEM; |
| |
| tid_config->n_tid_conf = num_conf; |
| |
| if (info->attrs[NL80211_ATTR_MAC]) |
| tid_config->peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| |
| wdev_lock(dev->ieee80211_ptr); |
| |
| nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG], |
| rem_conf) { |
| ret = nla_parse_nested(attrs, NL80211_TID_CONFIG_ATTR_MAX, |
| tid, NULL, NULL); |
| |
| if (ret) |
| goto bad_tid_conf; |
| |
| ret = parse_tid_conf(rdev, attrs, dev, |
| &tid_config->tid_conf[conf_idx], |
| info, tid_config->peer, link_id); |
| if (ret) |
| goto bad_tid_conf; |
| |
| conf_idx++; |
| } |
| |
| ret = rdev_set_tid_config(rdev, dev, tid_config); |
| |
| bad_tid_conf: |
| kfree(tid_config); |
| wdev_unlock(dev->ieee80211_ptr); |
| return ret; |
| } |
| |
| static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct cfg80211_color_change_settings params = {}; |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct nlattr **tb; |
| u16 offset; |
| int err; |
| |
| if (!rdev->ops->color_change) |
| return -EOPNOTSUPP; |
| |
| if (!wiphy_ext_feature_isset(&rdev->wiphy, |
| NL80211_EXT_FEATURE_BSS_COLOR)) |
| return -EOPNOTSUPP; |
| |
| if (wdev->iftype != NL80211_IFTYPE_AP) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT] || |
| !info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR] || |
| !info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS]) |
| return -EINVAL; |
| |
| params.count = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT]); |
| params.color = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR]); |
| |
| err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_next); |
| if (err) |
| return err; |
| |
| tb = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*tb), GFP_KERNEL); |
| if (!tb) |
| return -ENOMEM; |
| |
| err = nla_parse_nested(tb, NL80211_ATTR_MAX, |
| info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS], |
| nl80211_policy, info->extack); |
| if (err) |
| goto out; |
| |
| err = nl80211_parse_beacon(rdev, tb, ¶ms.beacon_color_change); |
| if (err) |
| goto out; |
| |
| if (!tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) != sizeof(u16)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]); |
| if (offset >= params.beacon_color_change.tail_len) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (params.beacon_color_change.tail[offset] != params.count) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| params.counter_offset_beacon = offset; |
| |
| if (tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) { |
| if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) != |
| sizeof(u16)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]); |
| if (offset >= params.beacon_color_change.probe_resp_len) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if (params.beacon_color_change.probe_resp[offset] != |
| params.count) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| params.counter_offset_presp = offset; |
| } |
| |
| wdev_lock(wdev); |
| err = rdev_color_change(rdev, dev, ¶ms); |
| wdev_unlock(wdev); |
| |
| out: |
| kfree(params.beacon_next.mbssid_ies); |
| kfree(params.beacon_color_change.mbssid_ies); |
| kfree(tb); |
| return err; |
| } |
| |
| static int nl80211_set_fils_aad(struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| struct cfg80211_fils_aad fils_aad = {}; |
| u8 *nonces; |
| |
| if (!info->attrs[NL80211_ATTR_MAC] || |
| !info->attrs[NL80211_ATTR_FILS_KEK] || |
| !info->attrs[NL80211_ATTR_FILS_NONCES]) |
| return -EINVAL; |
| |
| fils_aad.macaddr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| fils_aad.kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]); |
| fils_aad.kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]); |
| nonces = nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]); |
| fils_aad.snonce = nonces; |
| fils_aad.anonce = nonces + FILS_NONCE_LEN; |
| |
| return rdev_set_fils_aad(rdev, dev, &fils_aad); |
| } |
| |
| static int nl80211_add_link(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| int ret; |
| |
| if (!(wdev->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) |
| return -EINVAL; |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_AP: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_MAC] || |
| !is_valid_ether_addr(nla_data(info->attrs[NL80211_ATTR_MAC]))) |
| return -EINVAL; |
| |
| wdev_lock(wdev); |
| wdev->valid_links |= BIT(link_id); |
| ether_addr_copy(wdev->links[link_id].addr, |
| nla_data(info->attrs[NL80211_ATTR_MAC])); |
| |
| ret = rdev_add_intf_link(rdev, wdev, link_id); |
| if (ret) { |
| wdev->valid_links &= ~BIT(link_id); |
| eth_zero_addr(wdev->links[link_id].addr); |
| } |
| wdev_unlock(wdev); |
| |
| return ret; |
| } |
| |
| static int nl80211_remove_link(struct sk_buff *skb, struct genl_info *info) |
| { |
| unsigned int link_id = nl80211_link_id(info->attrs); |
| struct net_device *dev = info->user_ptr[1]; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| |
| /* cannot remove if there's no link */ |
| if (!info->attrs[NL80211_ATTR_MLO_LINK_ID]) |
| return -EINVAL; |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_AP: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wdev_lock(wdev); |
| cfg80211_remove_link(wdev, link_id); |
| wdev_unlock(wdev); |
| |
| return 0; |
| } |
| |
| static int |
| nl80211_add_mod_link_station(struct sk_buff *skb, struct genl_info *info, |
| bool add) |
| { |
| struct link_station_parameters params = {}; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| int err; |
| |
| if ((add && !rdev->ops->add_link_station) || |
| (!add && !rdev->ops->mod_link_station)) |
| return -EOPNOTSUPP; |
| |
| if (add && !info->attrs[NL80211_ATTR_MAC]) |
| return -EINVAL; |
| |
| if (!info->attrs[NL80211_ATTR_MLD_ADDR]) |
| return -EINVAL; |
| |
| if (add && !info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) |
| return -EINVAL; |
| |
| params.mld_mac = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| |
| if (info->attrs[NL80211_ATTR_MAC]) { |
| params.link_mac = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| if (!is_valid_ether_addr(params.link_mac)) |
| return -EINVAL; |
| } |
| |
| if (!info->attrs[NL80211_ATTR_MLO_LINK_ID]) |
| return -EINVAL; |
| |
| params.link_id = nla_get_u8(info->attrs[NL80211_ATTR_MLO_LINK_ID]); |
| |
| if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { |
| params.supported_rates = |
| nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| params.supported_rates_len = |
| nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| } |
| |
| if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
| params.ht_capa = |
| nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
| params.vht_capa = |
| nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) { |
| params.he_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| params.he_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_EHT_CAPABILITY]) { |
| params.eht_capa = |
| nla_data(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| params.eht_capa_len = |
| nla_len(info->attrs[NL80211_ATTR_EHT_CAPABILITY]); |
| |
| if (!ieee80211_eht_capa_size_ok((const u8 *)params.he_capa, |
| (const u8 *)params.eht_capa, |
| params.eht_capa_len, |
| false)) |
| return -EINVAL; |
| } |
| } |
| |
| if (info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]) |
| params.he_6ghz_capa = |
| nla_data(info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]); |
| |
| if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
| params.opmode_notif_used = true; |
| params.opmode_notif = |
| nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); |
| } |
| |
| err = nl80211_parse_sta_txpower_setting(info, ¶ms.txpwr, |
| ¶ms.txpwr_set); |
| if (err) |
| return err; |
| |
| wdev_lock(dev->ieee80211_ptr); |
| if (add) |
| err = rdev_add_link_station(rdev, dev, ¶ms); |
| else |
| err = rdev_mod_link_station(rdev, dev, ¶ms); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return err; |
| } |
| |
| static int |
| nl80211_add_link_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| return nl80211_add_mod_link_station(skb, info, true); |
| } |
| |
| static int |
| nl80211_modify_link_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| return nl80211_add_mod_link_station(skb, info, false); |
| } |
| |
| static int |
| nl80211_remove_link_station(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct link_station_del_parameters params = {}; |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct net_device *dev = info->user_ptr[1]; |
| int ret; |
| |
| if (!rdev->ops->del_link_station) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_MLD_ADDR] || |
| !info->attrs[NL80211_ATTR_MLO_LINK_ID]) |
| return -EINVAL; |
| |
| params.mld_mac = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); |
| params.link_id = nla_get_u8(info->attrs[NL80211_ATTR_MLO_LINK_ID]); |
| |
| wdev_lock(dev->ieee80211_ptr); |
| ret = rdev_del_link_station(rdev, dev, ¶ms); |
| wdev_unlock(dev->ieee80211_ptr); |
| |
| return ret; |
| } |
| |
| #define NL80211_FLAG_NEED_WIPHY 0x01 |
| #define NL80211_FLAG_NEED_NETDEV 0x02 |
| #define NL80211_FLAG_NEED_RTNL 0x04 |
| #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
| #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ |
| NL80211_FLAG_CHECK_NETDEV_UP) |
| #define NL80211_FLAG_NEED_WDEV 0x10 |
| /* If a netdev is associated, it must be UP, P2P must be started */ |
| #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
| NL80211_FLAG_CHECK_NETDEV_UP) |
| #define NL80211_FLAG_CLEAR_SKB 0x20 |
| #define NL80211_FLAG_NO_WIPHY_MTX 0x40 |
| #define NL80211_FLAG_MLO_VALID_LINK_ID 0x80 |
| #define NL80211_FLAG_MLO_UNSUPPORTED 0x100 |
| |
| #define INTERNAL_FLAG_SELECTORS(__sel) \ |
| SELECTOR(__sel, NONE, 0) /* must be first */ \ |
| SELECTOR(__sel, WIPHY, \ |
| NL80211_FLAG_NEED_WIPHY) \ |
| SELECTOR(__sel, WDEV, \ |
| NL80211_FLAG_NEED_WDEV) \ |
| SELECTOR(__sel, NETDEV, \ |
| NL80211_FLAG_NEED_NETDEV) \ |
| SELECTOR(__sel, NETDEV_LINK, \ |
| NL80211_FLAG_NEED_NETDEV | \ |
| NL80211_FLAG_MLO_VALID_LINK_ID) \ |
| SELECTOR(__sel, NETDEV_NO_MLO, \ |
| NL80211_FLAG_NEED_NETDEV | \ |
| NL80211_FLAG_MLO_UNSUPPORTED) \ |
| SELECTOR(__sel, WIPHY_RTNL, \ |
| NL80211_FLAG_NEED_WIPHY | \ |
| NL80211_FLAG_NEED_RTNL) \ |
| SELECTOR(__sel, WIPHY_RTNL_NOMTX, \ |
| NL80211_FLAG_NEED_WIPHY | \ |
| NL80211_FLAG_NEED_RTNL | \ |
| NL80211_FLAG_NO_WIPHY_MTX) \ |
| SELECTOR(__sel, WDEV_RTNL, \ |
| NL80211_FLAG_NEED_WDEV | \ |
| NL80211_FLAG_NEED_RTNL) \ |
| SELECTOR(__sel, NETDEV_RTNL, \ |
| NL80211_FLAG_NEED_NETDEV | \ |
| NL80211_FLAG_NEED_RTNL) \ |
| SELECTOR(__sel, NETDEV_UP, \ |
| NL80211_FLAG_NEED_NETDEV_UP) \ |
| SELECTOR(__sel, NETDEV_UP_LINK, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_MLO_VALID_LINK_ID) \ |
| SELECTOR(__sel, NETDEV_UP_NO_MLO, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_MLO_UNSUPPORTED) \ |
| SELECTOR(__sel, NETDEV_UP_NO_MLO_CLEAR, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_CLEAR_SKB | \ |
| NL80211_FLAG_MLO_UNSUPPORTED) \ |
| SELECTOR(__sel, NETDEV_UP_NOTMX, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_NO_WIPHY_MTX) \ |
| SELECTOR(__sel, NETDEV_UP_NOTMX_NOMLO, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_NO_WIPHY_MTX | \ |
| NL80211_FLAG_MLO_UNSUPPORTED) \ |
| SELECTOR(__sel, NETDEV_UP_CLEAR, \ |
| NL80211_FLAG_NEED_NETDEV_UP | \ |
| NL80211_FLAG_CLEAR_SKB) \ |
| SELECTOR(__sel, WDEV_UP, \ |
| NL80211_FLAG_NEED_WDEV_UP) \ |
| SELECTOR(__sel, WDEV_UP_LINK, \ |
| NL80211_FLAG_NEED_WDEV_UP | \ |
| NL80211_FLAG_MLO_VALID_LINK_ID) \ |
| SELECTOR(__sel, WDEV_UP_RTNL, \ |
| NL80211_FLAG_NEED_WDEV_UP | \ |
| NL80211_FLAG_NEED_RTNL) \ |
| SELECTOR(__sel, WIPHY_CLEAR, \ |
| NL80211_FLAG_NEED_WIPHY | \ |
| NL80211_FLAG_CLEAR_SKB) |
| |
| enum nl80211_internal_flags_selector { |
| #define SELECTOR(_, name, value) NL80211_IFL_SEL_##name, |
| INTERNAL_FLAG_SELECTORS(_) |
| #undef SELECTOR |
| }; |
| |
| static u32 nl80211_internal_flags[] = { |
| #define SELECTOR(_, name, value) [NL80211_IFL_SEL_##name] = value, |
| INTERNAL_FLAG_SELECTORS(_) |
| #undef SELECTOR |
| }; |
| |
| static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = NULL; |
| struct wireless_dev *wdev = NULL; |
| struct net_device *dev = NULL; |
| u32 internal_flags; |
| int err; |
| |
| if (WARN_ON(ops->internal_flags >= ARRAY_SIZE(nl80211_internal_flags))) |
| return -EINVAL; |
| |
| internal_flags = nl80211_internal_flags[ops->internal_flags]; |
| |
| rtnl_lock(); |
| if (internal_flags & NL80211_FLAG_NEED_WIPHY) { |
| rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
| if (IS_ERR(rdev)) { |
| err = PTR_ERR(rdev); |
| goto out_unlock; |
| } |
| info->user_ptr[0] = rdev; |
| } else if (internal_flags & NL80211_FLAG_NEED_NETDEV || |
| internal_flags & NL80211_FLAG_NEED_WDEV) { |
| wdev = __cfg80211_wdev_from_attrs(NULL, genl_info_net(info), |
| info->attrs); |
| if (IS_ERR(wdev)) { |
| err = PTR_ERR(wdev); |
| goto out_unlock; |
| } |
| |
| dev = wdev->netdev; |
| dev_hold(dev); |
| rdev = wiphy_to_rdev(wdev->wiphy); |
| |
| if (internal_flags & NL80211_FLAG_NEED_NETDEV) { |
| if (!dev) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| |
| info->user_ptr[1] = dev; |
| } else { |
| info->user_ptr[1] = wdev; |
| } |
| |
| if (internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
| !wdev_running(wdev)) { |
| err = -ENETDOWN; |
| goto out_unlock; |
| } |
| |
| info->user_ptr[0] = rdev; |
| } |
| |
| if (internal_flags & NL80211_FLAG_MLO_VALID_LINK_ID) { |
| struct nlattr *link_id = info->attrs[NL80211_ATTR_MLO_LINK_ID]; |
| |
| if (!wdev) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| |
| /* MLO -> require valid link ID */ |
| if (wdev->valid_links && |
| (!link_id || |
| !(wdev->valid_links & BIT(nla_get_u8(link_id))))) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| |
| /* non-MLO -> no link ID attribute accepted */ |
| if (!wdev->valid_links && link_id) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| } |
| |
| if (internal_flags & NL80211_FLAG_MLO_UNSUPPORTED) { |
| if (info->attrs[NL80211_ATTR_MLO_LINK_ID] || |
| (wdev && wdev->valid_links)) { |
| err = -EINVAL; |
| goto out_unlock; |
| } |
| } |
| |
| if (rdev && !(internal_flags & NL80211_FLAG_NO_WIPHY_MTX)) { |
| wiphy_lock(&rdev->wiphy); |
| /* we keep the mutex locked until post_doit */ |
| __release(&rdev->wiphy.mtx); |
| } |
| if (!(internal_flags & NL80211_FLAG_NEED_RTNL)) |
| rtnl_unlock(); |
| |
| return 0; |
| out_unlock: |
| rtnl_unlock(); |
| dev_put(dev); |
| return err; |
| } |
| |
| static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
| struct genl_info *info) |
| { |
| u32 internal_flags = nl80211_internal_flags[ops->internal_flags]; |
| |
| if (info->user_ptr[1]) { |
| if (internal_flags & NL80211_FLAG_NEED_WDEV) { |
| struct wireless_dev *wdev = info->user_ptr[1]; |
| |
| dev_put(wdev->netdev); |
| } else { |
| dev_put(info->user_ptr[1]); |
| } |
| } |
| |
| if (info->user_ptr[0] && |
| !(internal_flags & NL80211_FLAG_NO_WIPHY_MTX)) { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| |
| /* we kept the mutex locked since pre_doit */ |
| __acquire(&rdev->wiphy.mtx); |
| wiphy_unlock(&rdev->wiphy); |
| } |
| |
| if (internal_flags & NL80211_FLAG_NEED_RTNL) |
| rtnl_unlock(); |
| |
| /* If needed, clear the netlink message payload from the SKB |
| * as it might contain key data that shouldn't stick around on |
| * the heap after the SKB is freed. The netlink message header |
| * is still needed for further processing, so leave it intact. |
| */ |
| if (internal_flags & NL80211_FLAG_CLEAR_SKB) { |
| struct nlmsghdr *nlh = nlmsg_hdr(skb); |
| |
| memset(nlmsg_data(nlh), 0, nlmsg_len(nlh)); |
| } |
| } |
| |
| static int nl80211_set_sar_sub_specs(struct cfg80211_registered_device *rdev, |
| struct cfg80211_sar_specs *sar_specs, |
| struct nlattr *spec[], int index) |
| { |
| u32 range_index, i; |
| |
| if (!sar_specs || !spec) |
| return -EINVAL; |
| |
| if (!spec[NL80211_SAR_ATTR_SPECS_POWER] || |
| !spec[NL80211_SAR_ATTR_SPECS_RANGE_INDEX]) |
| return -EINVAL; |
| |
| range_index = nla_get_u32(spec[NL80211_SAR_ATTR_SPECS_RANGE_INDEX]); |
| |
| /* check if range_index exceeds num_freq_ranges */ |
| if (range_index >= rdev->wiphy.sar_capa->num_freq_ranges) |
| return -EINVAL; |
| |
| /* check if range_index duplicates */ |
| for (i = 0; i < index; i++) { |
| if (sar_specs->sub_specs[i].freq_range_index == range_index) |
| return -EINVAL; |
| } |
| |
| sar_specs->sub_specs[index].power = |
| nla_get_s32(spec[NL80211_SAR_ATTR_SPECS_POWER]); |
| |
| sar_specs->sub_specs[index].freq_range_index = range_index; |
| |
| return 0; |
| } |
| |
| static int nl80211_set_sar_specs(struct sk_buff *skb, struct genl_info *info) |
| { |
| struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
| struct nlattr *spec[NL80211_SAR_ATTR_SPECS_MAX + 1]; |
| struct nlattr *tb[NL80211_SAR_ATTR_MAX + 1]; |
| struct cfg80211_sar_specs *sar_spec; |
| enum nl80211_sar_type type; |
| struct nlattr *spec_list; |
| u32 specs; |
| int rem, err; |
| |
| if (!rdev->wiphy.sar_capa || !rdev->ops->set_sar_specs) |
| return -EOPNOTSUPP; |
| |
| if (!info->attrs[NL80211_ATTR_SAR_SPEC]) |
| return -EINVAL; |
| |
| nla_parse_nested(tb, NL80211_SAR_ATTR_MAX, |
| info->attrs[NL80211_ATTR_SAR_SPEC], |
| NULL, NULL); |
| |
| if (!tb[NL80211_SAR_ATTR_TYPE] || !tb[NL80211_SAR_ATTR_SPECS]) |
| return -EINVAL; |
| |
| type = nla_get_u32(tb[NL80211_SAR_ATTR_TYPE]); |
| if (type != rdev->wiphy.sar_capa->type) |
| return -EINVAL; |
| |
| specs = 0; |
| nla_for_each_nested(spec_list, tb[NL80211_SAR_ATTR_SPECS], rem) |
| specs++; |
| |
| if (specs > rdev->wiphy.sar_capa->num_freq_ranges) |
| return -EINVAL; |
| |
| sar_spec = kzalloc(struct_size(sar_spec, sub_specs, specs), GFP_KERNEL); |
| if (!sar_spec) |
| return -ENOMEM; |
| |
| sar_spec->type = type; |
| specs = 0; |
| nla_for_each_nested(spec_list, tb[NL80211_SAR_ATTR_SPECS], rem) { |
| nla_parse_nested(spec, NL80211_SAR_ATTR_SPECS_MAX, |
| spec_list, NULL, NULL); |
| |
| switch (type) { |
| case NL80211_SAR_TYPE_POWER: |
| if (nl80211_set_sar_sub_specs(rdev, sar_spec, |
| spec, specs)) { |
| err = -EINVAL; |
| goto error; |
| } |
| break; |
| default: |
| err = -EINVAL; |
| goto error; |
| } |
| specs++; |
| } |
| |
| sar_spec->num_sub_specs = specs; |
| |
| rdev->cur_cmd_info = info; |
| err = rdev_set_sar_specs(rdev, sar_spec); |
| rdev->cur_cmd_info = NULL; |
| error: |
| kfree(sar_spec); |
| return err; |
| } |
| |
| #define SELECTOR(__sel, name, value) \ |
| ((__sel) == (value)) ? NL80211_IFL_SEL_##name : |
| int __missing_selector(void); |
| #define IFLAGS(__val) INTERNAL_FLAG_SELECTORS(__val) __missing_selector() |
| |
| static const struct genl_ops nl80211_ops[] = { |
| { |
| .cmd = NL80211_CMD_GET_WIPHY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_wiphy, |
| .dumpit = nl80211_dump_wiphy, |
| .done = nl80211_dump_wiphy_done, |
| /* can be retrieved by unprivileged users */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| }; |
| |
| static const struct genl_small_ops nl80211_small_ops[] = { |
| { |
| .cmd = NL80211_CMD_SET_WIPHY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_wiphy, |
| .flags = GENL_UNS_ADMIN_PERM, |
| }, |
| { |
| .cmd = NL80211_CMD_GET_INTERFACE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_interface, |
| .dumpit = nl80211_dump_interface, |
| /* can be retrieved by unprivileged users */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_INTERFACE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_interface, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_NEW_INTERFACE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_new_interface, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = |
| IFLAGS(NL80211_FLAG_NEED_WIPHY | |
| NL80211_FLAG_NEED_RTNL | |
| /* we take the wiphy mutex later ourselves */ |
| NL80211_FLAG_NO_WIPHY_MTX), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_INTERFACE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_interface, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_KEY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_key, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_KEY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_key, |
| .flags = GENL_UNS_ADMIN_PERM, |
| /* cannot use NL80211_FLAG_MLO_VALID_LINK_ID, depends on key */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_NEW_KEY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_new_key, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_KEY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_key, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_BEACON, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .doit = nl80211_set_beacon, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_START_AP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .doit = nl80211_start_ap, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_STOP_AP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .doit = nl80211_stop_ap, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_STATION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_station, |
| .dumpit = nl80211_dump_station, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_STATION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_NEW_STATION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_new_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_STATION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_MPATH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_mpath, |
| .dumpit = nl80211_dump_mpath, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_MPP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_mpp, |
| .dumpit = nl80211_dump_mpp, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_MPATH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_mpath, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_NEW_MPATH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_new_mpath, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_MPATH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_mpath, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_BSS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_bss, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_REG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_reg_do, |
| .dumpit = nl80211_get_reg_dump, |
| /* can be retrieved by unprivileged users */ |
| }, |
| #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
| { |
| .cmd = NL80211_CMD_SET_REG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_reg, |
| .flags = GENL_ADMIN_PERM, |
| }, |
| #endif |
| { |
| .cmd = NL80211_CMD_REQ_SET_REG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_req_set_reg, |
| .flags = GENL_ADMIN_PERM, |
| }, |
| { |
| .cmd = NL80211_CMD_RELOAD_REGDB, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_reload_regdb, |
| .flags = GENL_ADMIN_PERM, |
| }, |
| { |
| .cmd = NL80211_CMD_GET_MESH_CONFIG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_mesh_config, |
| /* can be retrieved by unprivileged users */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_MESH_CONFIG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_update_mesh_config, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_TRIGGER_SCAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_trigger_scan, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_ABORT_SCAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_abort_scan, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_SCAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .dumpit = nl80211_dump_scan, |
| }, |
| { |
| .cmd = NL80211_CMD_START_SCHED_SCAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_start_sched_scan, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_STOP_SCHED_SCAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_stop_sched_scan, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_AUTHENTICATE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_authenticate, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_ASSOCIATE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_associate, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_DEAUTHENTICATE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_deauthenticate, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_DISASSOCIATE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_disassociate, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_JOIN_IBSS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_join_ibss, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_LEAVE_IBSS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_leave_ibss, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| #ifdef CONFIG_NL80211_TESTMODE |
| { |
| .cmd = NL80211_CMD_TESTMODE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_testmode_do, |
| .dumpit = nl80211_testmode_dump, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| #endif |
| { |
| .cmd = NL80211_CMD_CONNECT, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_connect, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_update_connect_params, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_DISCONNECT, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_disconnect, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_WIPHY_NETNS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_wiphy_netns, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY | |
| NL80211_FLAG_NEED_RTNL | |
| NL80211_FLAG_NO_WIPHY_MTX), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_SURVEY, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .dumpit = nl80211_dump_survey, |
| }, |
| { |
| .cmd = NL80211_CMD_SET_PMKSA, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_setdel_pmksa, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_PMKSA, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_setdel_pmksa, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_FLUSH_PMKSA, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_flush_pmksa, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_remain_on_channel, |
| .flags = GENL_UNS_ADMIN_PERM, |
| /* FIXME: requiring a link ID here is probably not good */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_cancel_remain_on_channel, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_tx_bitrate_mask, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_REGISTER_FRAME, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_register_mgmt, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_FRAME, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tx_mgmt, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tx_mgmt_cancel_wait, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_POWER_SAVE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_power_save, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_POWER_SAVE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_power_save, |
| /* can be retrieved by unprivileged users */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_CQM, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_cqm, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_CHANNEL, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_channel, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_JOIN_MESH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_join_mesh, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_LEAVE_MESH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_leave_mesh, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_JOIN_OCB, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_join_ocb, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_LEAVE_OCB, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_leave_ocb, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| #ifdef CONFIG_PM |
| { |
| .cmd = NL80211_CMD_GET_WOWLAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_wowlan, |
| /* can be retrieved by unprivileged users */ |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_WOWLAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_wowlan, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| #endif |
| { |
| .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_rekey_data, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_TDLS_MGMT, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tdls_mgmt, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_TDLS_OPER, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tdls_oper, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_UNEXPECTED_FRAME, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_register_unexpected_frame, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_PROBE_CLIENT, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_probe_client, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_REGISTER_BEACONS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_register_beacons, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_NOACK_MAP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_noack_map, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_START_P2P_DEVICE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_start_p2p_device, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_STOP_P2P_DEVICE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_stop_p2p_device, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_START_NAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_start_nan, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_STOP_NAN, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_stop_nan, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_ADD_NAN_FUNCTION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_nan_add_func, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_NAN_FUNCTION, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_nan_del_func, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_CHANGE_NAN_CONFIG, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_nan_change_config, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_MCAST_RATE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_mcast_rate, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_MAC_ACL, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_mac_acl, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_MLO_UNSUPPORTED), |
| }, |
| { |
| .cmd = NL80211_CMD_RADAR_DETECT, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_start_radar_detection, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_NO_WIPHY_MTX | |
| NL80211_FLAG_MLO_UNSUPPORTED), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_protocol_features, |
| }, |
| { |
| .cmd = NL80211_CMD_UPDATE_FT_IES, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_update_ft_ies, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_CRIT_PROTOCOL_START, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_crit_protocol_start, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_crit_protocol_stop, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_COALESCE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_coalesce, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_COALESCE, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_coalesce, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY), |
| }, |
| { |
| .cmd = NL80211_CMD_CHANNEL_SWITCH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_channel_switch, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_VENDOR, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_vendor_cmd, |
| .dumpit = nl80211_vendor_cmd_dump, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_QOS_MAP, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_qos_map, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_ADD_TX_TS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_add_tx_ts, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_UNSUPPORTED), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_TX_TS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_tx_ts, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tdls_channel_switch, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tdls_cancel_channel_switch, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_multicast_to_unicast, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_PMK, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_pmk, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_CLEAR_SKB), |
| }, |
| { |
| .cmd = NL80211_CMD_DEL_PMK, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_del_pmk, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_EXTERNAL_AUTH, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_external_auth, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_CONTROL_PORT_FRAME, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_tx_control_port, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_GET_FTM_RESPONDER_STATS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_get_ftm_responder_stats, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_PEER_MEASUREMENT_START, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_pmsr_start, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_NOTIFY_RADAR, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_notify_radar_detection, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_UPDATE_OWE_INFO, |
| .doit = nl80211_update_owe_info, |
| .flags = GENL_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_PROBE_MESH_LINK, |
| .doit = nl80211_probe_mesh_link, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_TID_CONFIG, |
| .doit = nl80211_set_tid_config, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_SAR_SPECS, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_sar_specs, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY | |
| NL80211_FLAG_NEED_RTNL), |
| }, |
| { |
| .cmd = NL80211_CMD_COLOR_CHANGE_REQUEST, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_color_change, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_SET_FILS_AAD, |
| .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
| .doit = nl80211_set_fils_aad, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_ADD_LINK, |
| .doit = nl80211_add_link, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP), |
| }, |
| { |
| .cmd = NL80211_CMD_REMOVE_LINK, |
| .doit = nl80211_remove_link, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_ADD_LINK_STA, |
| .doit = nl80211_add_link_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_MODIFY_LINK_STA, |
| .doit = nl80211_modify_link_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| { |
| .cmd = NL80211_CMD_REMOVE_LINK_STA, |
| .doit = nl80211_remove_link_station, |
| .flags = GENL_UNS_ADMIN_PERM, |
| .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP | |
| NL80211_FLAG_MLO_VALID_LINK_ID), |
| }, |
| }; |
| |
| static struct genl_family nl80211_fam __ro_after_init = { |
| .name = NL80211_GENL_NAME, /* have users key off the name instead */ |
| .hdrsize = 0, /* no private header */ |
| .version = 1, /* no particular meaning now */ |
| .maxattr = NL80211_ATTR_MAX, |
| .policy = nl80211_policy, |
| .netnsok = true, |
| .pre_doit = nl80211_pre_doit, |
| .post_doit = nl80211_post_doit, |
| .module = THIS_MODULE, |
| .ops = nl80211_ops, |
| .n_ops = ARRAY_SIZE(nl80211_ops), |
| .small_ops = nl80211_small_ops, |
| .n_small_ops = ARRAY_SIZE(nl80211_small_ops), |
| .resv_start_op = NL80211_CMD_REMOVE_LINK_STA + 1, |
| .mcgrps = nl80211_mcgrps, |
| .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps), |
| .parallel_ops = true, |
| }; |
| |
| /* notification functions */ |
| |
| void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, |
| enum nl80211_commands cmd) |
| { |
| struct sk_buff *msg; |
| struct nl80211_dump_wiphy_state state = {}; |
| |
| WARN_ON(cmd != NL80211_CMD_NEW_WIPHY && |
| cmd != NL80211_CMD_DEL_WIPHY); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_CONFIG, GFP_KERNEL); |
| } |
| |
| void nl80211_notify_iface(struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, |
| enum nl80211_commands cmd) |
| { |
| struct sk_buff *msg; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, cmd) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_CONFIG, GFP_KERNEL); |
| } |
| |
| static int nl80211_add_scan_req(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev) |
| { |
| struct cfg80211_scan_request *req = rdev->scan_req; |
| struct nlattr *nest; |
| int i; |
| struct cfg80211_scan_info *info; |
| |
| if (WARN_ON(!req)) |
| return 0; |
| |
| nest = nla_nest_start_noflag(msg, NL80211_ATTR_SCAN_SSIDS); |
| if (!nest) |
| goto nla_put_failure; |
| for (i = 0; i < req->n_ssids; i++) { |
| if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) |
| goto nla_put_failure; |
| } |
| nla_nest_end(msg, nest); |
| |
| if (req->flags & NL80211_SCAN_FLAG_FREQ_KHZ) { |
| nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQ_KHZ); |
| if (!nest) |
| goto nla_put_failure; |
| for (i = 0; i < req->n_channels; i++) { |
| if (nla_put_u32(msg, i, |
| ieee80211_channel_to_khz(req->channels[i]))) |
| goto nla_put_failure; |
| } |
| nla_nest_end(msg, nest); |
| } else { |
| nest = nla_nest_start_noflag(msg, |
| NL80211_ATTR_SCAN_FREQUENCIES); |
| if (!nest) |
| goto nla_put_failure; |
| for (i = 0; i < req->n_channels; i++) { |
| if (nla_put_u32(msg, i, req->channels[i]->center_freq)) |
| goto nla_put_failure; |
| } |
| nla_nest_end(msg, nest); |
| } |
| |
| if (req->ie && |
| nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) |
| goto nla_put_failure; |
| |
| if (req->flags && |
| nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) |
| goto nla_put_failure; |
| |
| info = rdev->int_scan_req ? &rdev->int_scan_req->info : |
| &rdev->scan_req->info; |
| if (info->scan_start_tsf && |
| (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF, |
| info->scan_start_tsf, NL80211_BSS_PAD) || |
| nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN, |
| info->tsf_bssid))) |
| goto nla_put_failure; |
| |
| return 0; |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| static int nl80211_prep_scan_msg(struct sk_buff *msg, |
| struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, |
| u32 portid, u32 seq, int flags, |
| u32 cmd) |
| { |
| void *hdr; |
| |
| hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
| if (!hdr) |
| return -1; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| /* ignore errors and send incomplete event anyway */ |
| nl80211_add_scan_req(msg, rdev); |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| static int |
| nl80211_prep_sched_scan_msg(struct sk_buff *msg, |
| struct cfg80211_sched_scan_request *req, u32 cmd) |
| { |
| void *hdr; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) |
| return -1; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, |
| wiphy_to_rdev(req->wiphy)->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| return 0; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| return -EMSGSIZE; |
| } |
| |
| void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev) |
| { |
| struct sk_buff *msg; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0, |
| NL80211_CMD_TRIGGER_SCAN) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_SCAN, GFP_KERNEL); |
| } |
| |
| struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, bool aborted) |
| { |
| struct sk_buff *msg; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return NULL; |
| |
| if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0, |
| aborted ? NL80211_CMD_SCAN_ABORTED : |
| NL80211_CMD_NEW_SCAN_RESULTS) < 0) { |
| nlmsg_free(msg); |
| return NULL; |
| } |
| |
| return msg; |
| } |
| |
| /* send message created by nl80211_build_scan_msg() */ |
| void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev, |
| struct sk_buff *msg) |
| { |
| if (!msg) |
| return; |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_SCAN, GFP_KERNEL); |
| } |
| |
| void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd) |
| { |
| struct sk_buff *msg; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0, |
| NL80211_MCGRP_SCAN, GFP_KERNEL); |
| } |
| |
| static bool nl80211_reg_change_event_fill(struct sk_buff *msg, |
| struct regulatory_request *request) |
| { |
| /* Userspace can always count this one always being set */ |
| if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
| goto nla_put_failure; |
| |
| if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { |
| if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
| NL80211_REGDOM_TYPE_WORLD)) |
| goto nla_put_failure; |
| } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { |
| if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
| NL80211_REGDOM_TYPE_CUSTOM_WORLD)) |
| goto nla_put_failure; |
| } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || |
| request->intersect) { |
| if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
| NL80211_REGDOM_TYPE_INTERSECTION)) |
| goto nla_put_failure; |
| } else { |
| if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
| NL80211_REGDOM_TYPE_COUNTRY) || |
| nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, |
| request->alpha2)) |
| goto nla_put_failure; |
| } |
| |
| if (request->wiphy_idx != WIPHY_IDX_INVALID) { |
| struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx); |
| |
| if (wiphy && |
| nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) |
| goto nla_put_failure; |
| |
| if (wiphy && |
| wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
| nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) |
| goto nla_put_failure; |
| } |
| |
| return true; |
| |
| nla_put_failure: |
| return false; |
| } |
| |
| /* |
| * This can happen on global regulatory changes or device specific settings |
| * based on custom regulatory domains. |
| */ |
| void nl80211_common_reg_change_event(enum nl80211_commands cmd_id, |
| struct regulatory_request *request) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (!nl80211_reg_change_event_fill(msg, request)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| rcu_read_lock(); |
| genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
| NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
| rcu_read_unlock(); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, |
| const u8 *buf, size_t len, |
| enum nl80211_commands cmd, gfp_t gfp, |
| int uapsd_queues, const u8 *req_ies, |
| size_t req_ies_len, bool reconnect) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(100 + len + req_ies_len, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
| (req_ies && |
| nla_put(msg, NL80211_ATTR_REQ_IE, req_ies_len, req_ies))) |
| goto nla_put_failure; |
| |
| if (reconnect && nla_put_flag(msg, NL80211_ATTR_RECONNECT_REQUESTED)) |
| goto nla_put_failure; |
| |
| if (uapsd_queues >= 0) { |
| struct nlattr *nla_wmm = |
| nla_nest_start_noflag(msg, NL80211_ATTR_STA_WME); |
| if (!nla_wmm) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, |
| uapsd_queues)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nla_wmm); |
| } |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *buf, |
| size_t len, gfp_t gfp) |
| { |
| nl80211_send_mlme_event(rdev, netdev, buf, len, |
| NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0, |
| false); |
| } |
| |
| void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, |
| struct cfg80211_rx_assoc_resp *data) |
| { |
| nl80211_send_mlme_event(rdev, netdev, data->buf, data->len, |
| NL80211_CMD_ASSOCIATE, GFP_KERNEL, |
| data->uapsd_queues, |
| data->req_ies, data->req_ies_len, false); |
| } |
| |
| void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *buf, |
| size_t len, bool reconnect, gfp_t gfp) |
| { |
| nl80211_send_mlme_event(rdev, netdev, buf, len, |
| NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0, |
| reconnect); |
| } |
| |
| void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *buf, |
| size_t len, bool reconnect, gfp_t gfp) |
| { |
| nl80211_send_mlme_event(rdev, netdev, buf, len, |
| NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0, |
| reconnect); |
| } |
| |
| void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, |
| size_t len) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| const struct ieee80211_mgmt *mgmt = (void *)buf; |
| u32 cmd; |
| |
| if (WARN_ON(len < 2)) |
| return; |
| |
| if (ieee80211_is_deauth(mgmt->frame_control)) { |
| cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; |
| } else if (ieee80211_is_disassoc(mgmt->frame_control)) { |
| cmd = NL80211_CMD_UNPROT_DISASSOCIATE; |
| } else if (ieee80211_is_beacon(mgmt->frame_control)) { |
| if (wdev->unprot_beacon_reported && |
| elapsed_jiffies_msecs(wdev->unprot_beacon_reported) < 10000) |
| return; |
| cmd = NL80211_CMD_UNPROT_BEACON; |
| wdev->unprot_beacon_reported = jiffies; |
| } else { |
| return; |
| } |
| |
| trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); |
| nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1, |
| NULL, 0, false); |
| } |
| EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); |
| |
| static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, int cmd, |
| const u8 *addr, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *addr, |
| gfp_t gfp) |
| { |
| nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, |
| addr, gfp); |
| } |
| |
| void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *addr, |
| gfp_t gfp) |
| { |
| nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
| addr, gfp); |
| } |
| |
| void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, |
| struct cfg80211_connect_resp_params *cr, |
| gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| unsigned int link; |
| size_t link_info_size = 0; |
| const u8 *connected_addr = cr->valid_links ? |
| cr->ap_mld_addr : cr->links[0].bssid; |
| |
| if (cr->valid_links) { |
| for_each_valid_link(cr, link) { |
| /* Nested attribute header */ |
| link_info_size += NLA_HDRLEN; |
| /* Link ID */ |
| link_info_size += nla_total_size(sizeof(u8)); |
| link_info_size += cr->links[link].addr ? |
| nla_total_size(ETH_ALEN) : 0; |
| link_info_size += (cr->links[link].bssid || |
| cr->links[link].bss) ? |
| nla_total_size(ETH_ALEN) : 0; |
| link_info_size += nla_total_size(sizeof(u16)); |
| } |
| } |
| |
| msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len + |
| cr->fils.kek_len + cr->fils.pmk_len + |
| (cr->fils.pmkid ? WLAN_PMKID_LEN : 0) + link_info_size, |
| gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| (connected_addr && |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, connected_addr)) || |
| nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, |
| cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE : |
| cr->status) || |
| (cr->status < 0 && |
| (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || |
| nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON, |
| cr->timeout_reason))) || |
| (cr->req_ie && |
| nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) || |
| (cr->resp_ie && |
| nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len, |
| cr->resp_ie)) || |
| (cr->fils.update_erp_next_seq_num && |
| nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM, |
| cr->fils.erp_next_seq_num)) || |
| (cr->status == WLAN_STATUS_SUCCESS && |
| ((cr->fils.kek && |
| nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils.kek_len, |
| cr->fils.kek)) || |
| (cr->fils.pmk && |
| nla_put(msg, NL80211_ATTR_PMK, cr->fils.pmk_len, cr->fils.pmk)) || |
| (cr->fils.pmkid && |
| nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->fils.pmkid))))) |
| goto nla_put_failure; |
| |
| if (cr->valid_links) { |
| int i = 1; |
| struct nlattr *nested; |
| |
| nested = nla_nest_start(msg, NL80211_ATTR_MLO_LINKS); |
| if (!nested) |
| goto nla_put_failure; |
| |
| for_each_valid_link(cr, link) { |
| struct nlattr *nested_mlo_links; |
| const u8 *bssid = cr->links[link].bss ? |
| cr->links[link].bss->bssid : |
| cr->links[link].bssid; |
| |
| nested_mlo_links = nla_nest_start(msg, i); |
| if (!nested_mlo_links) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link) || |
| (bssid && |
| nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, bssid)) || |
| (cr->links[link].addr && |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, |
| cr->links[link].addr)) || |
| nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, |
| cr->links[link].status)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nested_mlo_links); |
| i++; |
| } |
| nla_nest_end(msg, nested); |
| } |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_roamed(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, |
| struct cfg80211_roam_info *info, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| size_t link_info_size = 0; |
| unsigned int link; |
| const u8 *connected_addr = info->ap_mld_addr ? |
| info->ap_mld_addr : |
| (info->links[0].bss ? |
| info->links[0].bss->bssid : |
| info->links[0].bssid); |
| |
| if (info->valid_links) { |
| for_each_valid_link(info, link) { |
| /* Nested attribute header */ |
| link_info_size += NLA_HDRLEN; |
| /* Link ID */ |
| link_info_size += nla_total_size(sizeof(u8)); |
| link_info_size += info->links[link].addr ? |
| nla_total_size(ETH_ALEN) : 0; |
| link_info_size += (info->links[link].bssid || |
| info->links[link].bss) ? |
| nla_total_size(ETH_ALEN) : 0; |
| } |
| } |
| |
| msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len + |
| info->fils.kek_len + info->fils.pmk_len + |
| (info->fils.pmkid ? WLAN_PMKID_LEN : 0) + |
| link_info_size, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, connected_addr) || |
| (info->req_ie && |
| nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len, |
| info->req_ie)) || |
| (info->resp_ie && |
| nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len, |
| info->resp_ie)) || |
| (info->fils.update_erp_next_seq_num && |
| nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM, |
| info->fils.erp_next_seq_num)) || |
| (info->fils.kek && |
| nla_put(msg, NL80211_ATTR_FILS_KEK, info->fils.kek_len, |
| info->fils.kek)) || |
| (info->fils.pmk && |
| nla_put(msg, NL80211_ATTR_PMK, info->fils.pmk_len, info->fils.pmk)) || |
| (info->fils.pmkid && |
| nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, info->fils.pmkid))) |
| goto nla_put_failure; |
| |
| if (info->valid_links) { |
| int i = 1; |
| struct nlattr *nested; |
| |
| nested = nla_nest_start(msg, NL80211_ATTR_MLO_LINKS); |
| if (!nested) |
| goto nla_put_failure; |
| |
| for_each_valid_link(info, link) { |
| struct nlattr *nested_mlo_links; |
| const u8 *bssid = info->links[link].bss ? |
| info->links[link].bss->bssid : |
| info->links[link].bssid; |
| |
| nested_mlo_links = nla_nest_start(msg, i); |
| if (!nested_mlo_links) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link) || |
| (bssid && |
| nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, bssid)) || |
| (info->links[link].addr && |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, |
| info->links[link].addr))) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, nested_mlo_links); |
| i++; |
| } |
| nla_nest_end(msg, nested); |
| } |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *peer_addr, |
| const u8 *td_bitmap, u8 td_bitmap_len) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer_addr)) |
| goto nla_put_failure; |
| |
| if ((td_bitmap_len > 0) && td_bitmap) |
| if (nla_put(msg, NL80211_ATTR_TD_BITMAP, |
| td_bitmap_len, td_bitmap)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, GFP_KERNEL); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, u16 reason, |
| const u8 *ie, size_t ie_len, bool from_ap) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(100 + ie_len, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| (reason && |
| nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || |
| (from_ap && |
| nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || |
| (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, GFP_KERNEL); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *bssid, |
| gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, |
| const u8 *ie, u8 ie_len, |
| int sig_dbm, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
| return; |
| |
| trace_cfg80211_notify_new_peer_candidate(dev, addr); |
| |
| msg = nlmsg_new(100 + ie_len, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || |
| (ie_len && ie && |
| nla_put(msg, NL80211_ATTR_IE, ie_len, ie)) || |
| (sig_dbm && |
| nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); |
| |
| void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *addr, |
| enum nl80211_key_type key_type, int key_id, |
| const u8 *tsc, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || |
| nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || |
| (key_id != -1 && |
| nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || |
| (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
| struct ieee80211_channel *channel_before, |
| struct ieee80211_channel *channel_after) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| struct nlattr *nl_freq; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| /* |
| * Since we are applying the beacon hint to a wiphy we know its |
| * wiphy_idx is valid |
| */ |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
| goto nla_put_failure; |
| |
| /* Before */ |
| nl_freq = nla_nest_start_noflag(msg, NL80211_ATTR_FREQ_BEFORE); |
| if (!nl_freq) |
| goto nla_put_failure; |
| |
| if (nl80211_msg_put_channel(msg, wiphy, channel_before, false)) |
| goto nla_put_failure; |
| nla_nest_end(msg, nl_freq); |
| |
| /* After */ |
| nl_freq = nla_nest_start_noflag(msg, NL80211_ATTR_FREQ_AFTER); |
| if (!nl_freq) |
| goto nla_put_failure; |
| |
| if (nl80211_msg_put_channel(msg, wiphy, channel_after, false)) |
| goto nla_put_failure; |
| nla_nest_end(msg, nl_freq); |
| |
| genlmsg_end(msg, hdr); |
| |
| rcu_read_lock(); |
| genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
| NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
| rcu_read_unlock(); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| static void nl80211_send_remain_on_chan_event( |
| int cmd, struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, u64 cookie, |
| struct ieee80211_channel *chan, |
| unsigned int duration, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_NO_HT) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
| nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_assoc_comeback(struct net_device *netdev, |
| const u8 *ap_addr, u32 timeout) |
| { |
| struct wireless_dev *wdev = netdev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| trace_cfg80211_assoc_comeback(wdev, ap_addr, timeout); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ASSOC_COMEBACK); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ap_addr) || |
| nla_put_u32(msg, NL80211_ATTR_TIMEOUT, timeout)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, GFP_KERNEL); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_assoc_comeback); |
| |
| void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
| struct ieee80211_channel *chan, |
| unsigned int duration, gfp_t gfp) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); |
| nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, |
| rdev, wdev, cookie, chan, |
| duration, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_ready_on_channel); |
| |
| void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
| struct ieee80211_channel *chan, |
| gfp_t gfp) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); |
| nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
| rdev, wdev, cookie, chan, 0, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
| |
| void cfg80211_tx_mgmt_expired(struct wireless_dev *wdev, u64 cookie, |
| struct ieee80211_channel *chan, |
| gfp_t gfp) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| trace_cfg80211_tx_mgmt_expired(wdev, cookie, chan); |
| nl80211_send_remain_on_chan_event(NL80211_CMD_FRAME_WAIT_CANCEL, |
| rdev, wdev, cookie, chan, 0, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_tx_mgmt_expired); |
| |
| void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
| struct station_info *sinfo, gfp_t gfp) |
| { |
| struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| |
| trace_cfg80211_new_sta(dev, mac_addr, sinfo); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0, |
| rdev, dev, mac_addr, sinfo) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_new_sta); |
| |
| void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr, |
| struct station_info *sinfo, gfp_t gfp) |
| { |
| struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| struct station_info empty_sinfo = {}; |
| |
| if (!sinfo) |
| sinfo = &empty_sinfo; |
| |
| trace_cfg80211_del_sta(dev, mac_addr); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) { |
| cfg80211_sinfo_release_content(sinfo); |
| return; |
| } |
| |
| if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0, |
| rdev, dev, mac_addr, sinfo) < 0) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_del_sta_sinfo); |
| |
| void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
| enum nl80211_connect_failed_reason reason, |
| gfp_t gfp) |
| { |
| struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_GOODSIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || |
| nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_conn_failed); |
| |
| static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
| const u8 *addr, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid); |
| |
| if (!nlportid) |
| return false; |
| |
| msg = nlmsg_new(100, gfp); |
| if (!msg) |
| return true; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return true; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
| return true; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return true; |
| } |
| |
| bool cfg80211_rx_spurious_frame(struct net_device *dev, |
| const u8 *addr, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| bool ret; |
| |
| trace_cfg80211_rx_spurious_frame(dev, addr); |
| |
| if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO)) { |
| trace_cfg80211_return_bool(false); |
| return false; |
| } |
| ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, |
| addr, gfp); |
| trace_cfg80211_return_bool(ret); |
| return ret; |
| } |
| EXPORT_SYMBOL(cfg80211_rx_spurious_frame); |
| |
| bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
| const u8 *addr, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| bool ret; |
| |
| trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); |
| |
| if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && |
| wdev->iftype != NL80211_IFTYPE_P2P_GO && |
| wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { |
| trace_cfg80211_return_bool(false); |
| return false; |
| } |
| ret = __nl80211_unexpected_frame(dev, |
| NL80211_CMD_UNEXPECTED_4ADDR_FRAME, |
| addr, gfp); |
| trace_cfg80211_return_bool(ret); |
| return ret; |
| } |
| EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); |
| |
| int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
| struct wireless_dev *wdev, u32 nlportid, |
| struct cfg80211_rx_info *info, gfp_t gfp) |
| { |
| struct net_device *netdev = wdev->netdev; |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(100 + info->len, gfp); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return -ENOMEM; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| (info->have_link_id && |
| nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, info->link_id)) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, KHZ_TO_MHZ(info->freq)) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET, info->freq % 1000) || |
| (info->sig_dbm && |
| nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, info->sig_dbm)) || |
| nla_put(msg, NL80211_ATTR_FRAME, info->len, info->buf) || |
| (info->flags && |
| nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, info->flags)) || |
| (info->rx_tstamp && nla_put_u64_64bit(msg, |
| NL80211_ATTR_RX_HW_TIMESTAMP, |
| info->rx_tstamp, |
| NL80211_ATTR_PAD)) || |
| (info->ack_tstamp && nla_put_u64_64bit(msg, |
| NL80211_ATTR_TX_HW_TIMESTAMP, |
| info->ack_tstamp, |
| NL80211_ATTR_PAD))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| static void nl80211_frame_tx_status(struct wireless_dev *wdev, |
| struct cfg80211_tx_status *status, |
| gfp_t gfp, enum nl80211_commands command) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct net_device *netdev = wdev->netdev; |
| struct sk_buff *msg; |
| void *hdr; |
| |
| if (command == NL80211_CMD_FRAME_TX_STATUS) |
| trace_cfg80211_mgmt_tx_status(wdev, status->cookie, |
| status->ack); |
| else |
| trace_cfg80211_control_port_tx_status(wdev, status->cookie, |
| status->ack); |
| |
| msg = nlmsg_new(100 + status->len, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, command); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| netdev->ifindex)) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| nla_put(msg, NL80211_ATTR_FRAME, status->len, status->buf) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, status->cookie, |
| NL80211_ATTR_PAD) || |
| (status->ack && nla_put_flag(msg, NL80211_ATTR_ACK)) || |
| (status->tx_tstamp && |
| nla_put_u64_64bit(msg, NL80211_ATTR_TX_HW_TIMESTAMP, |
| status->tx_tstamp, NL80211_ATTR_PAD)) || |
| (status->ack_tstamp && |
| nla_put_u64_64bit(msg, NL80211_ATTR_RX_HW_TIMESTAMP, |
| status->ack_tstamp, NL80211_ATTR_PAD))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_control_port_tx_status(struct wireless_dev *wdev, u64 cookie, |
| const u8 *buf, size_t len, bool ack, |
| gfp_t gfp) |
| { |
| struct cfg80211_tx_status status = { |
| .cookie = cookie, |
| .buf = buf, |
| .len = len, |
| .ack = ack |
| }; |
| |
| nl80211_frame_tx_status(wdev, &status, gfp, |
| NL80211_CMD_CONTROL_PORT_FRAME_TX_STATUS); |
| } |
| EXPORT_SYMBOL(cfg80211_control_port_tx_status); |
| |
| void cfg80211_mgmt_tx_status_ext(struct wireless_dev *wdev, |
| struct cfg80211_tx_status *status, gfp_t gfp) |
| { |
| nl80211_frame_tx_status(wdev, status, gfp, NL80211_CMD_FRAME_TX_STATUS); |
| } |
| EXPORT_SYMBOL(cfg80211_mgmt_tx_status_ext); |
| |
| static int __nl80211_rx_control_port(struct net_device *dev, |
| struct sk_buff *skb, |
| bool unencrypted, |
| int link_id, |
| gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct ethhdr *ehdr = eth_hdr(skb); |
| const u8 *addr = ehdr->h_source; |
| u16 proto = be16_to_cpu(skb->protocol); |
| struct sk_buff *msg; |
| void *hdr; |
| struct nlattr *frame; |
| |
| u32 nlportid = READ_ONCE(wdev->conn_owner_nlportid); |
| |
| if (!nlportid) |
| return -ENOENT; |
| |
| msg = nlmsg_new(100 + skb->len, gfp); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONTROL_PORT_FRAME); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || |
| nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) || |
| (link_id >= 0 && |
| nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link_id)) || |
| (unencrypted && nla_put_flag(msg, |
| NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) |
| goto nla_put_failure; |
| |
| frame = nla_reserve(msg, NL80211_ATTR_FRAME, skb->len); |
| if (!frame) |
| goto nla_put_failure; |
| |
| skb_copy_bits(skb, 0, nla_data(frame), skb->len); |
| genlmsg_end(msg, hdr); |
| |
| return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| bool cfg80211_rx_control_port(struct net_device *dev, struct sk_buff *skb, |
| bool unencrypted, int link_id) |
| { |
| int ret; |
| |
| trace_cfg80211_rx_control_port(dev, skb, unencrypted, link_id); |
| ret = __nl80211_rx_control_port(dev, skb, unencrypted, link_id, |
| GFP_ATOMIC); |
| trace_cfg80211_return_bool(ret == 0); |
| return ret == 0; |
| } |
| EXPORT_SYMBOL(cfg80211_rx_control_port); |
| |
| static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev, |
| const char *mac, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| void **cb; |
| |
| if (!msg) |
| return NULL; |
| |
| cb = (void **)msg->cb; |
| |
| cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); |
| if (!cb[0]) { |
| nlmsg_free(msg); |
| return NULL; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
| goto nla_put_failure; |
| |
| if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) |
| goto nla_put_failure; |
| |
| cb[1] = nla_nest_start_noflag(msg, NL80211_ATTR_CQM); |
| if (!cb[1]) |
| goto nla_put_failure; |
| |
| cb[2] = rdev; |
| |
| return msg; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return NULL; |
| } |
| |
| static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) |
| { |
| void **cb = (void **)msg->cb; |
| struct cfg80211_registered_device *rdev = cb[2]; |
| |
| nla_nest_end(msg, cb[1]); |
| genlmsg_end(msg, cb[0]); |
| |
| memset(msg->cb, 0, sizeof(msg->cb)); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| } |
| |
| void cfg80211_cqm_rssi_notify(struct net_device *dev, |
| enum nl80211_cqm_rssi_threshold_event rssi_event, |
| s32 rssi_level, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| |
| trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level); |
| |
| if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && |
| rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) |
| return; |
| |
| if (wdev->cqm_config) { |
| wdev->cqm_config->last_rssi_event_value = rssi_level; |
| |
| cfg80211_cqm_rssi_update(rdev, dev); |
| |
| if (rssi_level == 0) |
| rssi_level = wdev->cqm_config->last_rssi_event_value; |
| } |
| |
| msg = cfg80211_prepare_cqm(dev, NULL, gfp); |
| if (!msg) |
| return; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
| rssi_event)) |
| goto nla_put_failure; |
| |
| if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL, |
| rssi_level)) |
| goto nla_put_failure; |
| |
| cfg80211_send_cqm(msg, gfp); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
| |
| void cfg80211_cqm_txe_notify(struct net_device *dev, |
| const u8 *peer, u32 num_packets, |
| u32 rate, u32 intvl, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| |
| msg = cfg80211_prepare_cqm(dev, peer, gfp); |
| if (!msg) |
| return; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) |
| goto nla_put_failure; |
| |
| cfg80211_send_cqm(msg, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_cqm_txe_notify); |
| |
| void cfg80211_cqm_pktloss_notify(struct net_device *dev, |
| const u8 *peer, u32 num_packets, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| |
| trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); |
| |
| msg = cfg80211_prepare_cqm(dev, peer, gfp); |
| if (!msg) |
| return; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
| goto nla_put_failure; |
| |
| cfg80211_send_cqm(msg, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); |
| |
| void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| |
| msg = cfg80211_prepare_cqm(dev, NULL, gfp); |
| if (!msg) |
| return; |
| |
| if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT)) |
| goto nla_put_failure; |
| |
| cfg80211_send_cqm(msg, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify); |
| |
| static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, const u8 *bssid, |
| const u8 *replay_ctr, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| struct nlattr *rekey_attr; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) |
| goto nla_put_failure; |
| |
| rekey_attr = nla_nest_start_noflag(msg, NL80211_ATTR_REKEY_DATA); |
| if (!rekey_attr) |
| goto nla_put_failure; |
| |
| if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
| NL80211_REPLAY_CTR_LEN, replay_ctr)) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, rekey_attr); |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
| const u8 *replay_ctr, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| trace_cfg80211_gtk_rekey_notify(dev, bssid); |
| nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); |
| |
| static void |
| nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, int index, |
| const u8 *bssid, bool preauth, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| struct nlattr *attr; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
| goto nla_put_failure; |
| |
| attr = nla_nest_start_noflag(msg, NL80211_ATTR_PMKSA_CANDIDATE); |
| if (!attr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
| nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || |
| (preauth && |
| nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) |
| goto nla_put_failure; |
| |
| nla_nest_end(msg, attr); |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
| const u8 *bssid, bool preauth, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); |
| nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); |
| } |
| EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); |
| |
| static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
| struct net_device *netdev, |
| unsigned int link_id, |
| struct cfg80211_chan_def *chandef, |
| gfp_t gfp, |
| enum nl80211_commands notif, |
| u8 count, bool quiet, u16 punct_bitmap) |
| { |
| struct wireless_dev *wdev = netdev->ieee80211_ptr; |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, notif); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
| goto nla_put_failure; |
| |
| if (wdev->valid_links && |
| nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link_id)) |
| goto nla_put_failure; |
| |
| if (nl80211_send_chandef(msg, chandef)) |
| goto nla_put_failure; |
| |
| if (notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) { |
| if (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)) |
| goto nla_put_failure; |
| if (quiet && |
| nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX)) |
| goto nla_put_failure; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_PUNCT_BITMAP, punct_bitmap)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_ch_switch_notify(struct net_device *dev, |
| struct cfg80211_chan_def *chandef, |
| unsigned int link_id, u16 punct_bitmap) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| ASSERT_WDEV_LOCK(wdev); |
| WARN_INVALID_LINK_ID(wdev, link_id); |
| |
| trace_cfg80211_ch_switch_notify(dev, chandef, link_id, punct_bitmap); |
| |
| switch (wdev->iftype) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (!WARN_ON(!wdev->links[link_id].client.current_bss)) |
| cfg80211_update_assoc_bss_entry(wdev, link_id, |
| chandef->chan); |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| wdev->u.mesh.chandef = *chandef; |
| wdev->u.mesh.preset_chandef = *chandef; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| wdev->links[link_id].ap.chandef = *chandef; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| wdev->u.ibss.chandef = *chandef; |
| break; |
| default: |
| WARN_ON(1); |
| break; |
| } |
| |
| cfg80211_sched_dfs_chan_update(rdev); |
| |
| nl80211_ch_switch_notify(rdev, dev, link_id, chandef, GFP_KERNEL, |
| NL80211_CMD_CH_SWITCH_NOTIFY, 0, false, |
| punct_bitmap); |
| } |
| EXPORT_SYMBOL(cfg80211_ch_switch_notify); |
| |
| void cfg80211_ch_switch_started_notify(struct net_device *dev, |
| struct cfg80211_chan_def *chandef, |
| unsigned int link_id, u8 count, |
| bool quiet, u16 punct_bitmap) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| |
| ASSERT_WDEV_LOCK(wdev); |
| WARN_INVALID_LINK_ID(wdev, link_id); |
| |
| trace_cfg80211_ch_switch_started_notify(dev, chandef, link_id, |
| punct_bitmap); |
| |
| |
| nl80211_ch_switch_notify(rdev, dev, link_id, chandef, GFP_KERNEL, |
| NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, |
| count, quiet, punct_bitmap); |
| } |
| EXPORT_SYMBOL(cfg80211_ch_switch_started_notify); |
| |
| int cfg80211_bss_color_notify(struct net_device *dev, gfp_t gfp, |
| enum nl80211_commands cmd, u8 count, |
| u64 color_bitmap) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| ASSERT_WDEV_LOCK(wdev); |
| |
| trace_cfg80211_bss_color_notify(dev, cmd, count, color_bitmap); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
| goto nla_put_failure; |
| |
| if (cmd == NL80211_CMD_COLOR_CHANGE_STARTED && |
| nla_put_u32(msg, NL80211_ATTR_COLOR_CHANGE_COUNT, count)) |
| goto nla_put_failure; |
| |
| if (cmd == NL80211_CMD_OBSS_COLOR_COLLISION && |
| nla_put_u64_64bit(msg, NL80211_ATTR_OBSS_COLOR_BITMAP, |
| color_bitmap, NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| return genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), |
| msg, 0, NL80211_MCGRP_MLME, gfp); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -EINVAL; |
| } |
| EXPORT_SYMBOL(cfg80211_bss_color_notify); |
| |
| void |
| nl80211_radar_notify(struct cfg80211_registered_device *rdev, |
| const struct cfg80211_chan_def *chandef, |
| enum nl80211_radar_event event, |
| struct net_device *netdev, gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
| goto nla_put_failure; |
| |
| /* NOP and radar events don't need a netdev parameter */ |
| if (netdev) { |
| struct wireless_dev *wdev = netdev->ieee80211_ptr; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) |
| goto nla_put_failure; |
| |
| if (nl80211_send_chandef(msg, chandef)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac, |
| struct sta_opmode_info *sta_opmode, |
| gfp_t gfp) |
| { |
| struct sk_buff *msg; |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| void *hdr; |
| |
| if (WARN_ON(!mac)) |
| return; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
| goto nla_put_failure; |
| |
| if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) |
| goto nla_put_failure; |
| |
| if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) && |
| nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode)) |
| goto nla_put_failure; |
| |
| if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) && |
| nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw)) |
| goto nla_put_failure; |
| |
| if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) && |
| nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify); |
| |
| void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
| u64 cookie, bool acked, s32 ack_signal, |
| bool is_valid_ack_signal, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| trace_cfg80211_probe_status(dev, addr, cookie, acked); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie, |
| NL80211_ATTR_PAD) || |
| (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) || |
| (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL, |
| ack_signal))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_probe_status); |
| |
| void cfg80211_report_obss_beacon_khz(struct wiphy *wiphy, const u8 *frame, |
| size_t len, int freq, int sig_dbm) |
| { |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| struct cfg80211_beacon_registration *reg; |
| |
| trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
| |
| spin_lock_bh(&rdev->beacon_registrations_lock); |
| list_for_each_entry(reg, &rdev->beacon_registrations, list) { |
| msg = nlmsg_new(len + 100, GFP_ATOMIC); |
| if (!msg) { |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| return; |
| } |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| (freq && |
| (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
| KHZ_TO_MHZ(freq)) || |
| nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET, |
| freq % 1000))) || |
| (sig_dbm && |
| nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || |
| nla_put(msg, NL80211_ATTR_FRAME, len, frame)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
| } |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| return; |
| |
| nla_put_failure: |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_report_obss_beacon_khz); |
| |
| #ifdef CONFIG_PM |
| static int cfg80211_net_detect_results(struct sk_buff *msg, |
| struct cfg80211_wowlan_wakeup *wakeup) |
| { |
| struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect; |
| struct nlattr *nl_results, *nl_match, *nl_freqs; |
| int i, j; |
| |
| nl_results = nla_nest_start_noflag(msg, |
| NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS); |
| if (!nl_results) |
| return -EMSGSIZE; |
| |
| for (i = 0; i < nd->n_matches; i++) { |
| struct cfg80211_wowlan_nd_match *match = nd->matches[i]; |
| |
| nl_match = nla_nest_start_noflag(msg, i); |
| if (!nl_match) |
| break; |
| |
| /* The SSID attribute is optional in nl80211, but for |
| * simplicity reasons it's always present in the |
| * cfg80211 structure. If a driver can't pass the |
| * SSID, that needs to be changed. A zero length SSID |
| * is still a valid SSID (wildcard), so it cannot be |
| * used for this purpose. |
| */ |
| if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len, |
| match->ssid.ssid)) { |
| nla_nest_cancel(msg, nl_match); |
| goto out; |
| } |
| |
| if (match->n_channels) { |
| nl_freqs = nla_nest_start_noflag(msg, |
| NL80211_ATTR_SCAN_FREQUENCIES); |
| if (!nl_freqs) { |
| nla_nest_cancel(msg, nl_match); |
| goto out; |
| } |
| |
| for (j = 0; j < match->n_channels; j++) { |
| if (nla_put_u32(msg, j, match->channels[j])) { |
| nla_nest_cancel(msg, nl_freqs); |
| nla_nest_cancel(msg, nl_match); |
| goto out; |
| } |
| } |
| |
| nla_nest_end(msg, nl_freqs); |
| } |
| |
| nla_nest_end(msg, nl_match); |
| } |
| |
| out: |
| nla_nest_end(msg, nl_results); |
| return 0; |
| } |
| |
| void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, |
| struct cfg80211_wowlan_wakeup *wakeup, |
| gfp_t gfp) |
| { |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| int size = 200; |
| |
| trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); |
| |
| if (wakeup) |
| size += wakeup->packet_present_len; |
| |
| msg = nlmsg_new(size, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); |
| if (!hdr) |
| goto free_msg; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto free_msg; |
| |
| if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
| wdev->netdev->ifindex)) |
| goto free_msg; |
| |
| if (wakeup) { |
| struct nlattr *reasons; |
| |
| reasons = nla_nest_start_noflag(msg, |
| NL80211_ATTR_WOWLAN_TRIGGERS); |
| if (!reasons) |
| goto free_msg; |
| |
| if (wakeup->disconnect && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) |
| goto free_msg; |
| if (wakeup->magic_pkt && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) |
| goto free_msg; |
| if (wakeup->gtk_rekey_failure && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) |
| goto free_msg; |
| if (wakeup->eap_identity_req && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) |
| goto free_msg; |
| if (wakeup->four_way_handshake && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) |
| goto free_msg; |
| if (wakeup->rfkill_release && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) |
| goto free_msg; |
| |
| if (wakeup->pattern_idx >= 0 && |
| nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
| wakeup->pattern_idx)) |
| goto free_msg; |
| |
| if (wakeup->tcp_match && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) |
| goto free_msg; |
| |
| if (wakeup->tcp_connlost && |
| nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) |
| goto free_msg; |
| |
| if (wakeup->tcp_nomoretokens && |
| nla_put_flag(msg, |
| NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) |
| goto free_msg; |
| |
| if (wakeup->packet) { |
| u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; |
| u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; |
| |
| if (!wakeup->packet_80211) { |
| pkt_attr = |
| NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; |
| len_attr = |
| NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; |
| } |
| |
| if (wakeup->packet_len && |
| nla_put_u32(msg, len_attr, wakeup->packet_len)) |
| goto free_msg; |
| |
| if (nla_put(msg, pkt_attr, wakeup->packet_present_len, |
| wakeup->packet)) |
| goto free_msg; |
| } |
| |
| if (wakeup->net_detect && |
| cfg80211_net_detect_results(msg, wakeup)) |
| goto free_msg; |
| |
| nla_nest_end(msg, reasons); |
| } |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| free_msg: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); |
| #endif |
| |
| void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
| enum nl80211_tdls_operation oper, |
| u16 reason_code, gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, |
| reason_code); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); |
| if (!hdr) { |
| nlmsg_free(msg); |
| return; |
| } |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || |
| (reason_code > 0 && |
| nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_tdls_oper_request); |
| |
| static int nl80211_netlink_notify(struct notifier_block * nb, |
| unsigned long state, |
| void *_notify) |
| { |
| struct netlink_notify *notify = _notify; |
| struct cfg80211_registered_device *rdev; |
| struct wireless_dev *wdev; |
| struct cfg80211_beacon_registration *reg, *tmp; |
| |
| if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC) |
| return NOTIFY_DONE; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
| struct cfg80211_sched_scan_request *sched_scan_req; |
| |
| list_for_each_entry_rcu(sched_scan_req, |
| &rdev->sched_scan_req_list, |
| list) { |
| if (sched_scan_req->owner_nlportid == notify->portid) { |
| sched_scan_req->nl_owner_dead = true; |
| schedule_work(&rdev->sched_scan_stop_wk); |
| } |
| } |
| |
| list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) { |
| cfg80211_mlme_unregister_socket(wdev, notify->portid); |
| |
| if (wdev->owner_nlportid == notify->portid) { |
| wdev->nl_owner_dead = true; |
| schedule_work(&rdev->destroy_work); |
| } else if (wdev->conn_owner_nlportid == notify->portid) { |
| schedule_work(&wdev->disconnect_wk); |
| } |
| |
| cfg80211_release_pmsr(wdev, notify->portid); |
| } |
| |
| spin_lock_bh(&rdev->beacon_registrations_lock); |
| list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, |
| list) { |
| if (reg->nlportid == notify->portid) { |
| list_del(®->list); |
| kfree(reg); |
| break; |
| } |
| } |
| spin_unlock_bh(&rdev->beacon_registrations_lock); |
| } |
| |
| rcu_read_unlock(); |
| |
| /* |
| * It is possible that the user space process that is controlling the |
| * indoor setting disappeared, so notify the regulatory core. |
| */ |
| regulatory_netlink_notify(notify->portid); |
| return NOTIFY_OK; |
| } |
| |
| static struct notifier_block nl80211_netlink_notifier = { |
| .notifier_call = nl80211_netlink_notify, |
| }; |
| |
| void cfg80211_ft_event(struct net_device *netdev, |
| struct cfg80211_ft_event_params *ft_event) |
| { |
| struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| trace_cfg80211_ft_event(wiphy, netdev, ft_event); |
| |
| if (!ft_event->target_ap) |
| return; |
| |
| msg = nlmsg_new(100 + ft_event->ies_len + ft_event->ric_ies_len, |
| GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); |
| if (!hdr) |
| goto out; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) |
| goto out; |
| |
| if (ft_event->ies && |
| nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) |
| goto out; |
| if (ft_event->ric_ies && |
| nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, |
| ft_event->ric_ies)) |
| goto out; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, GFP_KERNEL); |
| return; |
| out: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_ft_event); |
| |
| void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) |
| { |
| struct cfg80211_registered_device *rdev; |
| struct sk_buff *msg; |
| void *hdr; |
| u32 nlportid; |
| |
| rdev = wiphy_to_rdev(wdev->wiphy); |
| if (!rdev->crit_proto_nlportid) |
| return; |
| |
| nlportid = rdev->crit_proto_nlportid; |
| rdev->crit_proto_nlportid = 0; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD)) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
| return; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_crit_proto_stopped); |
| |
| void nl80211_send_ap_stopped(struct wireless_dev *wdev, unsigned int link_id) |
| { |
| struct wiphy *wiphy = wdev->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); |
| if (!hdr) |
| goto out; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || |
| nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), |
| NL80211_ATTR_PAD) || |
| (wdev->valid_links && |
| nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link_id))) |
| goto out; |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, |
| NL80211_MCGRP_MLME, GFP_KERNEL); |
| return; |
| out: |
| nlmsg_free(msg); |
| } |
| |
| int cfg80211_external_auth_request(struct net_device *dev, |
| struct cfg80211_external_auth_params *params, |
| gfp_t gfp) |
| { |
| struct wireless_dev *wdev = dev->ieee80211_ptr; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| if (!wdev->conn_owner_nlportid) |
| return -EINVAL; |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return -ENOMEM; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
| nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) || |
| nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION, |
| params->action) || |
| nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) || |
| nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len, |
| params->ssid.ssid) || |
| (!is_zero_ether_addr(params->mld_addr) && |
| nla_put(msg, NL80211_ATTR_MLD_ADDR, ETH_ALEN, params->mld_addr))) |
| goto nla_put_failure; |
| |
| genlmsg_end(msg, hdr); |
| genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, |
| wdev->conn_owner_nlportid); |
| return 0; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| EXPORT_SYMBOL(cfg80211_external_auth_request); |
| |
| void cfg80211_update_owe_info_event(struct net_device *netdev, |
| struct cfg80211_update_owe_info *owe_info, |
| gfp_t gfp) |
| { |
| struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; |
| struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
| struct sk_buff *msg; |
| void *hdr; |
| |
| trace_cfg80211_update_owe_info_event(wiphy, netdev, owe_info); |
| |
| msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
| if (!msg) |
| return; |
| |
| hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UPDATE_OWE_INFO); |
| if (!hdr) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
| nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
| nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, owe_info->peer)) |
| goto nla_put_failure; |
| |
| if (!owe_info->ie_len || |
| nla_put(msg, NL80211_ATTR_IE, owe_info->ie_len, owe_info->ie)) |
| goto nla_put_failure; |
| |
| if (owe_info->assoc_link_id != -1) { |
| if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, |
| owe_info->assoc_link_id)) |
| goto nla_put_failure; |
| |
| if (!is_zero_ether_addr(owe_info->peer_mld_addr) && |
| nla_put(msg, NL80211_ATTR_MLD_ADDR, ETH_ALEN, |
| owe_info->peer_mld_addr)) |
| goto nla_put_failure; |
| } |
| |
| genlmsg_end(msg, hdr); |
| |
| genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
| NL80211_MCGRP_MLME, gfp); |
| return; |
| |
| nla_put_failure: |
| genlmsg_cancel(msg, hdr); |
| nlmsg_free(msg); |
| } |
| EXPORT_SYMBOL(cfg80211_update_owe_info_event); |
| |
| /* initialisation/exit functions */ |
| |
| int __init nl80211_init(void) |
| { |
| int err; |
| |
| err = genl_register_family(&nl80211_fam); |
| if (err) |
| return err; |
| |
| err = netlink_register_notifier(&nl80211_netlink_notifier); |
| if (err) |
| goto err_out; |
| |
| return 0; |
| err_out: |
| genl_unregister_family(&nl80211_fam); |
| return err; |
| } |
| |
| void nl80211_exit(void) |
| { |
| netlink_unregister_notifier(&nl80211_netlink_notifier); |
| genl_unregister_family(&nl80211_fam); |
| } |
