| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * mac80211 configuration hooks for cfg80211 |
| * |
| * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| * Copyright 2013-2015 Intel Mobile Communications GmbH |
| * Copyright (C) 2015-2017 Intel Deutschland GmbH |
| * Copyright (C) 2018-2022 Intel Corporation |
| */ |
| |
| #include <linux/ieee80211.h> |
| #include <linux/nl80211.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/slab.h> |
| #include <net/net_namespace.h> |
| #include <linux/rcupdate.h> |
| #include <linux/fips.h> |
| #include <linux/if_ether.h> |
| #include <net/cfg80211.h> |
| #include "ieee80211_i.h" |
| #include "driver-ops.h" |
| #include "rate.h" |
| #include "mesh.h" |
| #include "wme.h" |
| |
| static struct ieee80211_link_data * |
| ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, |
| bool require_valid) |
| { |
| struct ieee80211_link_data *link; |
| |
| if (link_id < 0) { |
| /* |
| * For keys, if sdata is not an MLD, we might not use |
| * the return value at all (if it's not a pairwise key), |
| * so in that case (require_valid==false) don't error. |
| */ |
| if (require_valid && sdata->vif.valid_links) |
| return ERR_PTR(-EINVAL); |
| |
| return &sdata->deflink; |
| } |
| |
| link = sdata_dereference(sdata->link[link_id], sdata); |
| if (!link) |
| return ERR_PTR(-ENOLINK); |
| return link; |
| } |
| |
| static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, |
| struct vif_params *params) |
| { |
| bool mu_mimo_groups = false; |
| bool mu_mimo_follow = false; |
| |
| if (params->vht_mumimo_groups) { |
| u64 membership; |
| |
| BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); |
| |
| memcpy(sdata->vif.bss_conf.mu_group.membership, |
| params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); |
| memcpy(sdata->vif.bss_conf.mu_group.position, |
| params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, |
| WLAN_USER_POSITION_LEN); |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| BSS_CHANGED_MU_GROUPS); |
| /* don't care about endianness - just check for 0 */ |
| memcpy(&membership, params->vht_mumimo_groups, |
| WLAN_MEMBERSHIP_LEN); |
| mu_mimo_groups = membership != 0; |
| } |
| |
| if (params->vht_mumimo_follow_addr) { |
| mu_mimo_follow = |
| is_valid_ether_addr(params->vht_mumimo_follow_addr); |
| ether_addr_copy(sdata->u.mntr.mu_follow_addr, |
| params->vht_mumimo_follow_addr); |
| } |
| |
| sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; |
| } |
| |
| static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, |
| struct vif_params *params) |
| { |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_sub_if_data *monitor_sdata; |
| |
| /* check flags first */ |
| if (params->flags && ieee80211_sdata_running(sdata)) { |
| u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; |
| |
| /* |
| * Prohibit MONITOR_FLAG_COOK_FRAMES and |
| * MONITOR_FLAG_ACTIVE to be changed while the |
| * interface is up. |
| * Else we would need to add a lot of cruft |
| * to update everything: |
| * cooked_mntrs, monitor and all fif_* counters |
| * reconfigure hardware |
| */ |
| if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) |
| return -EBUSY; |
| } |
| |
| /* also validate MU-MIMO change */ |
| monitor_sdata = wiphy_dereference(local->hw.wiphy, |
| local->monitor_sdata); |
| |
| if (!monitor_sdata && |
| (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) |
| return -EOPNOTSUPP; |
| |
| /* apply all changes now - no failures allowed */ |
| |
| if (monitor_sdata) |
| ieee80211_set_mu_mimo_follow(monitor_sdata, params); |
| |
| if (params->flags) { |
| if (ieee80211_sdata_running(sdata)) { |
| ieee80211_adjust_monitor_flags(sdata, -1); |
| sdata->u.mntr.flags = params->flags; |
| ieee80211_adjust_monitor_flags(sdata, 1); |
| |
| ieee80211_configure_filter(local); |
| } else { |
| /* |
| * Because the interface is down, ieee80211_do_stop |
| * and ieee80211_do_open take care of "everything" |
| * mentioned in the comment above. |
| */ |
| sdata->u.mntr.flags = params->flags; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_mbssid_config params, |
| struct ieee80211_bss_conf *link_conf) |
| { |
| struct ieee80211_sub_if_data *tx_sdata; |
| |
| sdata->vif.mbssid_tx_vif = NULL; |
| link_conf->bssid_index = 0; |
| link_conf->nontransmitted = false; |
| link_conf->ema_ap = false; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) |
| return -EINVAL; |
| |
| tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); |
| if (!tx_sdata) |
| return -EINVAL; |
| |
| if (tx_sdata == sdata) { |
| sdata->vif.mbssid_tx_vif = &sdata->vif; |
| } else { |
| sdata->vif.mbssid_tx_vif = &tx_sdata->vif; |
| link_conf->nontransmitted = true; |
| link_conf->bssid_index = params.index; |
| } |
| if (params.ema) |
| link_conf->ema_ap = true; |
| |
| return 0; |
| } |
| |
| static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, |
| const char *name, |
| unsigned char name_assign_type, |
| enum nl80211_iftype type, |
| struct vif_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct wireless_dev *wdev; |
| struct ieee80211_sub_if_data *sdata; |
| int err; |
| |
| err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); |
| if (err) |
| return ERR_PTR(err); |
| |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| if (type == NL80211_IFTYPE_MONITOR) { |
| err = ieee80211_set_mon_options(sdata, params); |
| if (err) { |
| ieee80211_if_remove(sdata); |
| return NULL; |
| } |
| } |
| |
| return wdev; |
| } |
| |
| static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) |
| { |
| ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| |
| return 0; |
| } |
| |
| static int ieee80211_change_iface(struct wiphy *wiphy, |
| struct net_device *dev, |
| enum nl80211_iftype type, |
| struct vif_params *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| int ret; |
| |
| ret = ieee80211_if_change_type(sdata, type); |
| if (ret) |
| return ret; |
| |
| if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { |
| RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); |
| ieee80211_check_fast_rx_iface(sdata); |
| } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { |
| struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
| |
| if (params->use_4addr == ifmgd->use_4addr) |
| return 0; |
| |
| /* FIXME: no support for 4-addr MLO yet */ |
| if (sdata->vif.valid_links) |
| return -EOPNOTSUPP; |
| |
| sdata->u.mgd.use_4addr = params->use_4addr; |
| if (!ifmgd->associated) |
| return 0; |
| |
| mutex_lock(&local->sta_mtx); |
| sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); |
| if (sta) |
| drv_sta_set_4addr(local, sdata, &sta->sta, |
| params->use_4addr); |
| mutex_unlock(&local->sta_mtx); |
| |
| if (params->use_4addr) |
| ieee80211_send_4addr_nullfunc(local, sdata); |
| } |
| |
| if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
| ret = ieee80211_set_mon_options(sdata, params); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_start_p2p_device(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| int ret; |
| |
| mutex_lock(&sdata->local->chanctx_mtx); |
| ret = ieee80211_check_combinations(sdata, NULL, 0, 0); |
| mutex_unlock(&sdata->local->chanctx_mtx); |
| if (ret < 0) |
| return ret; |
| |
| return ieee80211_do_open(wdev, true); |
| } |
| |
| static void ieee80211_stop_p2p_device(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| } |
| |
| static int ieee80211_start_nan(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct cfg80211_nan_conf *conf) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| int ret; |
| |
| mutex_lock(&sdata->local->chanctx_mtx); |
| ret = ieee80211_check_combinations(sdata, NULL, 0, 0); |
| mutex_unlock(&sdata->local->chanctx_mtx); |
| if (ret < 0) |
| return ret; |
| |
| ret = ieee80211_do_open(wdev, true); |
| if (ret) |
| return ret; |
| |
| ret = drv_start_nan(sdata->local, sdata, conf); |
| if (ret) |
| ieee80211_sdata_stop(sdata); |
| |
| sdata->u.nan.conf = *conf; |
| |
| return ret; |
| } |
| |
| static void ieee80211_stop_nan(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| drv_stop_nan(sdata->local, sdata); |
| ieee80211_sdata_stop(sdata); |
| } |
| |
| static int ieee80211_nan_change_conf(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct cfg80211_nan_conf *conf, |
| u32 changes) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct cfg80211_nan_conf new_conf; |
| int ret = 0; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| new_conf = sdata->u.nan.conf; |
| |
| if (changes & CFG80211_NAN_CONF_CHANGED_PREF) |
| new_conf.master_pref = conf->master_pref; |
| |
| if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) |
| new_conf.bands = conf->bands; |
| |
| ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); |
| if (!ret) |
| sdata->u.nan.conf = new_conf; |
| |
| return ret; |
| } |
| |
| static int ieee80211_add_nan_func(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct cfg80211_nan_func *nan_func) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| int ret; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_NAN) |
| return -EOPNOTSUPP; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| spin_lock_bh(&sdata->u.nan.func_lock); |
| |
| ret = idr_alloc(&sdata->u.nan.function_inst_ids, |
| nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, |
| GFP_ATOMIC); |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| |
| if (ret < 0) |
| return ret; |
| |
| nan_func->instance_id = ret; |
| |
| WARN_ON(nan_func->instance_id == 0); |
| |
| ret = drv_add_nan_func(sdata->local, sdata, nan_func); |
| if (ret) { |
| spin_lock_bh(&sdata->u.nan.func_lock); |
| idr_remove(&sdata->u.nan.function_inst_ids, |
| nan_func->instance_id); |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| } |
| |
| return ret; |
| } |
| |
| static struct cfg80211_nan_func * |
| ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, |
| u64 cookie) |
| { |
| struct cfg80211_nan_func *func; |
| int id; |
| |
| lockdep_assert_held(&sdata->u.nan.func_lock); |
| |
| idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { |
| if (func->cookie == cookie) |
| return func; |
| } |
| |
| return NULL; |
| } |
| |
| static void ieee80211_del_nan_func(struct wiphy *wiphy, |
| struct wireless_dev *wdev, u64 cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct cfg80211_nan_func *func; |
| u8 instance_id = 0; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_NAN || |
| !ieee80211_sdata_running(sdata)) |
| return; |
| |
| spin_lock_bh(&sdata->u.nan.func_lock); |
| |
| func = ieee80211_find_nan_func_by_cookie(sdata, cookie); |
| if (func) |
| instance_id = func->instance_id; |
| |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| |
| if (instance_id) |
| drv_del_nan_func(sdata->local, sdata, instance_id); |
| } |
| |
| static int ieee80211_set_noack_map(struct wiphy *wiphy, |
| struct net_device *dev, |
| u16 noack_map) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| sdata->noack_map = noack_map; |
| |
| ieee80211_check_fast_xmit_iface(sdata); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, |
| const u8 *mac_addr, u8 key_idx) |
| { |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_key *key; |
| struct sta_info *sta; |
| int ret = -EINVAL; |
| |
| if (!wiphy_ext_feature_isset(local->hw.wiphy, |
| NL80211_EXT_FEATURE_EXT_KEY_ID)) |
| return -EINVAL; |
| |
| sta = sta_info_get_bss(sdata, mac_addr); |
| |
| if (!sta) |
| return -EINVAL; |
| |
| if (sta->ptk_idx == key_idx) |
| return 0; |
| |
| mutex_lock(&local->key_mtx); |
| key = key_mtx_dereference(local, sta->ptk[key_idx]); |
| |
| if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) |
| ret = ieee80211_set_tx_key(key); |
| |
| mutex_unlock(&local->key_mtx); |
| return ret; |
| } |
| |
| static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
| int link_id, u8 key_idx, bool pairwise, |
| const u8 *mac_addr, struct key_params *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link = |
| ieee80211_link_or_deflink(sdata, link_id, false); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta = NULL; |
| struct ieee80211_key *key; |
| int err; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| if (pairwise && params->mode == NL80211_KEY_SET_TX) |
| return ieee80211_set_tx(sdata, mac_addr, key_idx); |
| |
| /* reject WEP and TKIP keys if WEP failed to initialize */ |
| switch (params->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_WEP104: |
| if (link_id >= 0) |
| return -EINVAL; |
| if (WARN_ON_ONCE(fips_enabled)) |
| return -EINVAL; |
| break; |
| default: |
| break; |
| } |
| |
| key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
| params->key, params->seq_len, params->seq); |
| if (IS_ERR(key)) |
| return PTR_ERR(key); |
| |
| key->conf.link_id = link_id; |
| |
| if (pairwise) |
| key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
| |
| if (params->mode == NL80211_KEY_NO_TX) |
| key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| if (mac_addr) { |
| sta = sta_info_get_bss(sdata, mac_addr); |
| /* |
| * The ASSOC test makes sure the driver is ready to |
| * receive the key. When wpa_supplicant has roamed |
| * using FT, it attempts to set the key before |
| * association has completed, this rejects that attempt |
| * so it will set the key again after association. |
| * |
| * TODO: accept the key if we have a station entry and |
| * add it to the device after the station. |
| */ |
| if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| ieee80211_key_free_unused(key); |
| err = -ENOENT; |
| goto out_unlock; |
| } |
| } |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_STATION: |
| if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| /* Keys without a station are used for TX only */ |
| if (sta && test_sta_flag(sta, WLAN_STA_MFP)) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| /* no MFP (yet) */ |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| #ifdef CONFIG_MAC80211_MESH |
| if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| #endif |
| case NL80211_IFTYPE_WDS: |
| case NL80211_IFTYPE_MONITOR: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| case NL80211_IFTYPE_NAN: |
| case NL80211_IFTYPE_UNSPECIFIED: |
| case NUM_NL80211_IFTYPES: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_P2P_GO: |
| case NL80211_IFTYPE_OCB: |
| /* shouldn't happen */ |
| WARN_ON_ONCE(1); |
| break; |
| } |
| |
| err = ieee80211_key_link(key, link, sta); |
| |
| out_unlock: |
| mutex_unlock(&local->sta_mtx); |
| |
| return err; |
| } |
| |
| static struct ieee80211_key * |
| ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, |
| u8 key_idx, bool pairwise, const u8 *mac_addr) |
| { |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_link_data *link = &sdata->deflink; |
| struct ieee80211_key *key; |
| |
| if (link_id >= 0) { |
| link = rcu_dereference_check(sdata->link[link_id], |
| lockdep_is_held(&sdata->wdev.mtx)); |
| if (!link) |
| return NULL; |
| } |
| |
| if (mac_addr) { |
| struct sta_info *sta; |
| struct link_sta_info *link_sta; |
| |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) |
| return NULL; |
| |
| if (link_id >= 0) { |
| link_sta = rcu_dereference_check(sta->link[link_id], |
| lockdep_is_held(&local->sta_mtx)); |
| if (!link_sta) |
| return NULL; |
| } else { |
| link_sta = &sta->deflink; |
| } |
| |
| if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
| return rcu_dereference_check_key_mtx(local, |
| sta->ptk[key_idx]); |
| |
| if (!pairwise && |
| key_idx < NUM_DEFAULT_KEYS + |
| NUM_DEFAULT_MGMT_KEYS + |
| NUM_DEFAULT_BEACON_KEYS) |
| return rcu_dereference_check_key_mtx(local, |
| link_sta->gtk[key_idx]); |
| |
| return NULL; |
| } |
| |
| if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
| return rcu_dereference_check_key_mtx(local, |
| sdata->keys[key_idx]); |
| |
| key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); |
| if (key) |
| return key; |
| |
| /* or maybe it was a WEP key */ |
| if (key_idx < NUM_DEFAULT_KEYS) |
| return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); |
| |
| return NULL; |
| } |
| |
| static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, |
| int link_id, u8 key_idx, bool pairwise, |
| const u8 *mac_addr) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_key *key; |
| int ret; |
| |
| mutex_lock(&local->sta_mtx); |
| mutex_lock(&local->key_mtx); |
| |
| key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); |
| if (!key) { |
| ret = -ENOENT; |
| goto out_unlock; |
| } |
| |
| ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); |
| |
| ret = 0; |
| out_unlock: |
| mutex_unlock(&local->key_mtx); |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
| int link_id, u8 key_idx, bool pairwise, |
| const u8 *mac_addr, void *cookie, |
| void (*callback)(void *cookie, |
| struct key_params *params)) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| u8 seq[6] = {0}; |
| struct key_params params; |
| struct ieee80211_key *key; |
| u64 pn64; |
| u32 iv32; |
| u16 iv16; |
| int err = -ENOENT; |
| struct ieee80211_key_seq kseq = {}; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| |
| key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); |
| if (!key) |
| goto out; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| params.cipher = key->conf.cipher; |
| |
| switch (key->conf.cipher) { |
| case WLAN_CIPHER_SUITE_TKIP: |
| pn64 = atomic64_read(&key->conf.tx_pn); |
| iv32 = TKIP_PN_TO_IV32(pn64); |
| iv16 = TKIP_PN_TO_IV16(pn64); |
| |
| if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && |
| !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
| drv_get_key_seq(sdata->local, key, &kseq); |
| iv32 = kseq.tkip.iv32; |
| iv16 = kseq.tkip.iv16; |
| } |
| |
| seq[0] = iv16 & 0xff; |
| seq[1] = (iv16 >> 8) & 0xff; |
| seq[2] = iv32 & 0xff; |
| seq[3] = (iv32 >> 8) & 0xff; |
| seq[4] = (iv32 >> 16) & 0xff; |
| seq[5] = (iv32 >> 24) & 0xff; |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_CCMP_256: |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), aes_cmac)); |
| fallthrough; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), aes_gmac)); |
| fallthrough; |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), gcmp)); |
| |
| if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && |
| !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
| drv_get_key_seq(sdata->local, key, &kseq); |
| memcpy(seq, kseq.ccmp.pn, 6); |
| } else { |
| pn64 = atomic64_read(&key->conf.tx_pn); |
| seq[0] = pn64; |
| seq[1] = pn64 >> 8; |
| seq[2] = pn64 >> 16; |
| seq[3] = pn64 >> 24; |
| seq[4] = pn64 >> 32; |
| seq[5] = pn64 >> 40; |
| } |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| default: |
| if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) |
| break; |
| if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) |
| break; |
| drv_get_key_seq(sdata->local, key, &kseq); |
| params.seq = kseq.hw.seq; |
| params.seq_len = kseq.hw.seq_len; |
| break; |
| } |
| |
| params.key = key->conf.key; |
| params.key_len = key->conf.keylen; |
| |
| callback(cookie, ¶ms); |
| err = 0; |
| |
| out: |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| static int ieee80211_config_default_key(struct wiphy *wiphy, |
| struct net_device *dev, |
| int link_id, u8 key_idx, bool uni, |
| bool multi) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link = |
| ieee80211_link_or_deflink(sdata, link_id, false); |
| |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| ieee80211_set_default_key(link, key_idx, uni, multi); |
| |
| return 0; |
| } |
| |
| static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, |
| struct net_device *dev, |
| int link_id, u8 key_idx) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link = |
| ieee80211_link_or_deflink(sdata, link_id, true); |
| |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| ieee80211_set_default_mgmt_key(link, key_idx); |
| |
| return 0; |
| } |
| |
| static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, |
| struct net_device *dev, |
| int link_id, u8 key_idx) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link = |
| ieee80211_link_or_deflink(sdata, link_id, true); |
| |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| ieee80211_set_default_beacon_key(link, key_idx); |
| |
| return 0; |
| } |
| |
| void sta_set_rate_info_tx(struct sta_info *sta, |
| const struct ieee80211_tx_rate *rate, |
| struct rate_info *rinfo) |
| { |
| rinfo->flags = 0; |
| if (rate->flags & IEEE80211_TX_RC_MCS) { |
| rinfo->flags |= RATE_INFO_FLAGS_MCS; |
| rinfo->mcs = rate->idx; |
| } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { |
| rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
| rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); |
| rinfo->nss = ieee80211_rate_get_vht_nss(rate); |
| } else { |
| struct ieee80211_supported_band *sband; |
| int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
| u16 brate; |
| |
| sband = ieee80211_get_sband(sta->sdata); |
| WARN_ON_ONCE(sband && !sband->bitrates); |
| if (sband && sband->bitrates) { |
| brate = sband->bitrates[rate->idx].bitrate; |
| rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
| } |
| } |
| if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_40; |
| else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_80; |
| else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_160; |
| else |
| rinfo->bw = RATE_INFO_BW_20; |
| if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
| rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| } |
| |
| static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *mac, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| int ret = -ENOENT; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_by_idx(sdata, idx); |
| if (sta) { |
| ret = 0; |
| memcpy(mac, sta->sta.addr, ETH_ALEN); |
| sta_set_sinfo(sta, sinfo, true); |
| } |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, |
| int idx, struct survey_info *survey) |
| { |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| |
| return drv_get_survey(local, idx, survey); |
| } |
| |
| static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *mac, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| int ret = -ENOENT; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_bss(sdata, mac); |
| if (sta) { |
| ret = 0; |
| sta_set_sinfo(sta, sinfo, true); |
| } |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_set_monitor_channel(struct wiphy *wiphy, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| int ret = 0; |
| |
| if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) |
| return 0; |
| |
| mutex_lock(&local->mtx); |
| if (local->use_chanctx) { |
| sdata = wiphy_dereference(local->hw.wiphy, |
| local->monitor_sdata); |
| if (sdata) { |
| ieee80211_link_release_channel(&sdata->deflink); |
| ret = ieee80211_link_use_channel(&sdata->deflink, |
| chandef, |
| IEEE80211_CHANCTX_EXCLUSIVE); |
| } |
| } else if (local->open_count == local->monitors) { |
| local->_oper_chandef = *chandef; |
| ieee80211_hw_config(local, 0); |
| } |
| |
| if (ret == 0) |
| local->monitor_chandef = *chandef; |
| mutex_unlock(&local->mtx); |
| |
| return ret; |
| } |
| |
| static int |
| ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
| const u8 *resp, size_t resp_len, |
| const struct ieee80211_csa_settings *csa, |
| const struct ieee80211_color_change_settings *cca, |
| struct ieee80211_link_data *link) |
| { |
| struct probe_resp *new, *old; |
| |
| if (!resp || !resp_len) |
| return 1; |
| |
| old = sdata_dereference(link->u.ap.probe_resp, sdata); |
| |
| new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| new->len = resp_len; |
| memcpy(new->data, resp, resp_len); |
| |
| if (csa) |
| memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, |
| csa->n_counter_offsets_presp * |
| sizeof(new->cntdwn_counter_offsets[0])); |
| else if (cca) |
| new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; |
| |
| rcu_assign_pointer(link->u.ap.probe_resp, new); |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_fils_discovery *params, |
| struct ieee80211_link_data *link, |
| struct ieee80211_bss_conf *link_conf) |
| { |
| struct fils_discovery_data *new, *old = NULL; |
| struct ieee80211_fils_discovery *fd; |
| |
| if (!params->tmpl || !params->tmpl_len) |
| return -EINVAL; |
| |
| fd = &link_conf->fils_discovery; |
| fd->min_interval = params->min_interval; |
| fd->max_interval = params->max_interval; |
| |
| old = sdata_dereference(link->u.ap.fils_discovery, sdata); |
| new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| new->len = params->tmpl_len; |
| memcpy(new->data, params->tmpl, params->tmpl_len); |
| rcu_assign_pointer(link->u.ap.fils_discovery, new); |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| return 0; |
| } |
| |
| static int |
| ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_unsol_bcast_probe_resp *params, |
| struct ieee80211_link_data *link, |
| struct ieee80211_bss_conf *link_conf) |
| { |
| struct unsol_bcast_probe_resp_data *new, *old = NULL; |
| |
| if (!params->tmpl || !params->tmpl_len) |
| return -EINVAL; |
| |
| old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); |
| new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| new->len = params->tmpl_len; |
| memcpy(new->data, params->tmpl, params->tmpl_len); |
| rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| link_conf->unsol_bcast_probe_resp_interval = params->interval; |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_ftm_responder_params( |
| struct ieee80211_sub_if_data *sdata, |
| const u8 *lci, size_t lci_len, |
| const u8 *civicloc, size_t civicloc_len, |
| struct ieee80211_bss_conf *link_conf) |
| { |
| struct ieee80211_ftm_responder_params *new, *old; |
| u8 *pos; |
| int len; |
| |
| if (!lci_len && !civicloc_len) |
| return 0; |
| |
| old = link_conf->ftmr_params; |
| len = lci_len + civicloc_len; |
| |
| new = kzalloc(sizeof(*new) + len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| pos = (u8 *)(new + 1); |
| if (lci_len) { |
| new->lci_len = lci_len; |
| new->lci = pos; |
| memcpy(pos, lci, lci_len); |
| pos += lci_len; |
| } |
| |
| if (civicloc_len) { |
| new->civicloc_len = civicloc_len; |
| new->civicloc = pos; |
| memcpy(pos, civicloc, civicloc_len); |
| pos += civicloc_len; |
| } |
| |
| link_conf->ftmr_params = new; |
| kfree(old); |
| |
| return 0; |
| } |
| |
| static int |
| ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, |
| struct cfg80211_mbssid_elems *src) |
| { |
| int i, offset = 0; |
| |
| for (i = 0; i < src->cnt; i++) { |
| memcpy(pos + offset, src->elem[i].data, src->elem[i].len); |
| dst->elem[i].len = src->elem[i].len; |
| dst->elem[i].data = pos + offset; |
| offset += dst->elem[i].len; |
| } |
| dst->cnt = src->cnt; |
| |
| return offset; |
| } |
| |
| static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_link_data *link, |
| struct cfg80211_beacon_data *params, |
| const struct ieee80211_csa_settings *csa, |
| const struct ieee80211_color_change_settings *cca) |
| { |
| struct cfg80211_mbssid_elems *mbssid = NULL; |
| struct beacon_data *new, *old; |
| int new_head_len, new_tail_len; |
| int size, err; |
| u32 changed = BSS_CHANGED_BEACON; |
| struct ieee80211_bss_conf *link_conf = link->conf; |
| |
| old = sdata_dereference(link->u.ap.beacon, sdata); |
| |
| /* Need to have a beacon head if we don't have one yet */ |
| if (!params->head && !old) |
| return -EINVAL; |
| |
| /* new or old head? */ |
| if (params->head) |
| new_head_len = params->head_len; |
| else |
| new_head_len = old->head_len; |
| |
| /* new or old tail? */ |
| if (params->tail || !old) |
| /* params->tail_len will be zero for !params->tail */ |
| new_tail_len = params->tail_len; |
| else |
| new_tail_len = old->tail_len; |
| |
| size = sizeof(*new) + new_head_len + new_tail_len; |
| |
| /* new or old multiple BSSID elements? */ |
| if (params->mbssid_ies) { |
| mbssid = params->mbssid_ies; |
| size += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
| size += ieee80211_get_mbssid_beacon_len(mbssid); |
| } else if (old && old->mbssid_ies) { |
| mbssid = old->mbssid_ies; |
| size += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
| size += ieee80211_get_mbssid_beacon_len(mbssid); |
| } |
| |
| new = kzalloc(size, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| /* start filling the new info now */ |
| |
| /* |
| * pointers go into the block we allocated, |
| * memory is | beacon_data | head | tail | mbssid_ies |
| */ |
| new->head = ((u8 *) new) + sizeof(*new); |
| new->tail = new->head + new_head_len; |
| new->head_len = new_head_len; |
| new->tail_len = new_tail_len; |
| /* copy in optional mbssid_ies */ |
| if (mbssid) { |
| u8 *pos = new->tail + new->tail_len; |
| |
| new->mbssid_ies = (void *)pos; |
| pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
| ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); |
| /* update bssid_indicator */ |
| link_conf->bssid_indicator = |
| ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); |
| } |
| |
| if (csa) { |
| new->cntdwn_current_counter = csa->count; |
| memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, |
| csa->n_counter_offsets_beacon * |
| sizeof(new->cntdwn_counter_offsets[0])); |
| } else if (cca) { |
| new->cntdwn_current_counter = cca->count; |
| new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; |
| } |
| |
| /* copy in head */ |
| if (params->head) |
| memcpy(new->head, params->head, new_head_len); |
| else |
| memcpy(new->head, old->head, new_head_len); |
| |
| /* copy in optional tail */ |
| if (params->tail) |
| memcpy(new->tail, params->tail, new_tail_len); |
| else |
| if (old) |
| memcpy(new->tail, old->tail, new_tail_len); |
| |
| err = ieee80211_set_probe_resp(sdata, params->probe_resp, |
| params->probe_resp_len, csa, cca, link); |
| if (err < 0) { |
| kfree(new); |
| return err; |
| } |
| if (err == 0) |
| changed |= BSS_CHANGED_AP_PROBE_RESP; |
| |
| if (params->ftm_responder != -1) { |
| link_conf->ftm_responder = params->ftm_responder; |
| err = ieee80211_set_ftm_responder_params(sdata, |
| params->lci, |
| params->lci_len, |
| params->civicloc, |
| params->civicloc_len, |
| link_conf); |
| |
| if (err < 0) { |
| kfree(new); |
| return err; |
| } |
| |
| changed |= BSS_CHANGED_FTM_RESPONDER; |
| } |
| |
| rcu_assign_pointer(link->u.ap.beacon, new); |
| sdata->u.ap.active = true; |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| return changed; |
| } |
| |
| static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ap_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct beacon_data *old; |
| struct ieee80211_sub_if_data *vlan; |
| u32 changed = BSS_CHANGED_BEACON_INT | |
| BSS_CHANGED_BEACON_ENABLED | |
| BSS_CHANGED_BEACON | |
| BSS_CHANGED_P2P_PS | |
| BSS_CHANGED_TXPOWER | |
| BSS_CHANGED_TWT; |
| int i, err; |
| int prev_beacon_int; |
| unsigned int link_id = params->beacon.link_id; |
| struct ieee80211_link_data *link; |
| struct ieee80211_bss_conf *link_conf; |
| |
| link = sdata_dereference(sdata->link[link_id], sdata); |
| if (!link) |
| return -ENOLINK; |
| |
| link_conf = link->conf; |
| |
| old = sdata_dereference(link->u.ap.beacon, sdata); |
| if (old) |
| return -EALREADY; |
| |
| if (params->smps_mode != NL80211_SMPS_OFF) |
| return -ENOTSUPP; |
| |
| link->smps_mode = IEEE80211_SMPS_OFF; |
| |
| link->needed_rx_chains = sdata->local->rx_chains; |
| |
| prev_beacon_int = link_conf->beacon_int; |
| link_conf->beacon_int = params->beacon_interval; |
| |
| if (params->he_cap && params->he_oper) { |
| link_conf->he_support = true; |
| link_conf->htc_trig_based_pkt_ext = |
| le32_get_bits(params->he_oper->he_oper_params, |
| IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); |
| link_conf->frame_time_rts_th = |
| le32_get_bits(params->he_oper->he_oper_params, |
| IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); |
| changed |= BSS_CHANGED_HE_OBSS_PD; |
| |
| if (params->beacon.he_bss_color.enabled) |
| changed |= BSS_CHANGED_HE_BSS_COLOR; |
| } |
| |
| if (sdata->vif.type == NL80211_IFTYPE_AP && |
| params->mbssid_config.tx_wdev) { |
| err = ieee80211_set_ap_mbssid_options(sdata, |
| params->mbssid_config, |
| link_conf); |
| if (err) |
| return err; |
| } |
| |
| mutex_lock(&local->mtx); |
| err = ieee80211_link_use_channel(link, ¶ms->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (!err) |
| ieee80211_link_copy_chanctx_to_vlans(link, false); |
| mutex_unlock(&local->mtx); |
| if (err) { |
| link_conf->beacon_int = prev_beacon_int; |
| return err; |
| } |
| |
| /* |
| * Apply control port protocol, this allows us to |
| * not encrypt dynamic WEP control frames. |
| */ |
| sdata->control_port_protocol = params->crypto.control_port_ethertype; |
| sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; |
| sdata->control_port_over_nl80211 = |
| params->crypto.control_port_over_nl80211; |
| sdata->control_port_no_preauth = |
| params->crypto.control_port_no_preauth; |
| |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { |
| vlan->control_port_protocol = |
| params->crypto.control_port_ethertype; |
| vlan->control_port_no_encrypt = |
| params->crypto.control_port_no_encrypt; |
| vlan->control_port_over_nl80211 = |
| params->crypto.control_port_over_nl80211; |
| vlan->control_port_no_preauth = |
| params->crypto.control_port_no_preauth; |
| } |
| |
| link_conf->dtim_period = params->dtim_period; |
| link_conf->enable_beacon = true; |
| link_conf->allow_p2p_go_ps = sdata->vif.p2p; |
| link_conf->twt_responder = params->twt_responder; |
| link_conf->he_obss_pd = params->he_obss_pd; |
| link_conf->he_bss_color = params->beacon.he_bss_color; |
| sdata->vif.cfg.s1g = params->chandef.chan->band == |
| NL80211_BAND_S1GHZ; |
| |
| sdata->vif.cfg.ssid_len = params->ssid_len; |
| if (params->ssid_len) |
| memcpy(sdata->vif.cfg.ssid, params->ssid, |
| params->ssid_len); |
| link_conf->hidden_ssid = |
| (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); |
| |
| memset(&link_conf->p2p_noa_attr, 0, |
| sizeof(link_conf->p2p_noa_attr)); |
| link_conf->p2p_noa_attr.oppps_ctwindow = |
| params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| if (params->p2p_opp_ps) |
| link_conf->p2p_noa_attr.oppps_ctwindow |= |
| IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| |
| sdata->beacon_rate_set = false; |
| if (wiphy_ext_feature_isset(local->hw.wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { |
| sdata->beacon_rateidx_mask[i] = |
| params->beacon_rate.control[i].legacy; |
| if (sdata->beacon_rateidx_mask[i]) |
| sdata->beacon_rate_set = true; |
| } |
| } |
| |
| if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) |
| link_conf->beacon_tx_rate = params->beacon_rate; |
| |
| err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); |
| if (err < 0) |
| goto error; |
| changed |= err; |
| |
| if (params->fils_discovery.max_interval) { |
| err = ieee80211_set_fils_discovery(sdata, |
| ¶ms->fils_discovery, |
| link, link_conf); |
| if (err < 0) |
| goto error; |
| changed |= BSS_CHANGED_FILS_DISCOVERY; |
| } |
| |
| if (params->unsol_bcast_probe_resp.interval) { |
| err = ieee80211_set_unsol_bcast_probe_resp(sdata, |
| ¶ms->unsol_bcast_probe_resp, |
| link, link_conf); |
| if (err < 0) |
| goto error; |
| changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; |
| } |
| |
| err = drv_start_ap(sdata->local, sdata, link_conf); |
| if (err) { |
| old = sdata_dereference(link->u.ap.beacon, sdata); |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| RCU_INIT_POINTER(link->u.ap.beacon, NULL); |
| sdata->u.ap.active = false; |
| goto error; |
| } |
| |
| ieee80211_recalc_dtim(local, sdata); |
| ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); |
| ieee80211_link_info_change_notify(sdata, link, changed); |
| |
| netif_carrier_on(dev); |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| netif_carrier_on(vlan->dev); |
| |
| return 0; |
| |
| error: |
| mutex_lock(&local->mtx); |
| ieee80211_link_release_channel(link); |
| mutex_unlock(&local->mtx); |
| |
| return err; |
| } |
| |
| static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_beacon_data *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link; |
| struct beacon_data *old; |
| int err; |
| struct ieee80211_bss_conf *link_conf; |
| |
| sdata_assert_lock(sdata); |
| |
| link = sdata_dereference(sdata->link[params->link_id], sdata); |
| if (!link) |
| return -ENOLINK; |
| |
| link_conf = link->conf; |
| |
| /* don't allow changing the beacon while a countdown is in place - offset |
| * of channel switch counter may change |
| */ |
| if (link_conf->csa_active || link_conf->color_change_active) |
| return -EBUSY; |
| |
| old = sdata_dereference(link->u.ap.beacon, sdata); |
| if (!old) |
| return -ENOENT; |
| |
| err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); |
| if (err < 0) |
| return err; |
| |
| if (params->he_bss_color_valid && |
| params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { |
| link_conf->he_bss_color.enabled = params->he_bss_color.enabled; |
| err |= BSS_CHANGED_HE_BSS_COLOR; |
| } |
| |
| ieee80211_link_info_change_notify(sdata, link, err); |
| return 0; |
| } |
| |
| static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) |
| { |
| if (!link->u.ap.next_beacon) |
| return; |
| |
| kfree(link->u.ap.next_beacon->mbssid_ies); |
| kfree(link->u.ap.next_beacon); |
| link->u.ap.next_beacon = NULL; |
| } |
| |
| static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, |
| unsigned int link_id) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_sub_if_data *vlan; |
| struct ieee80211_local *local = sdata->local; |
| struct beacon_data *old_beacon; |
| struct probe_resp *old_probe_resp; |
| struct fils_discovery_data *old_fils_discovery; |
| struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; |
| struct cfg80211_chan_def chandef; |
| struct ieee80211_link_data *link = |
| sdata_dereference(sdata->link[link_id], sdata); |
| struct ieee80211_bss_conf *link_conf = link->conf; |
| |
| sdata_assert_lock(sdata); |
| |
| old_beacon = sdata_dereference(link->u.ap.beacon, sdata); |
| if (!old_beacon) |
| return -ENOENT; |
| old_probe_resp = sdata_dereference(link->u.ap.probe_resp, |
| sdata); |
| old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, |
| sdata); |
| old_unsol_bcast_probe_resp = |
| sdata_dereference(link->u.ap.unsol_bcast_probe_resp, |
| sdata); |
| |
| /* abort any running channel switch */ |
| mutex_lock(&local->mtx); |
| link_conf->csa_active = false; |
| if (link->csa_block_tx) { |
| ieee80211_wake_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| link->csa_block_tx = false; |
| } |
| |
| mutex_unlock(&local->mtx); |
| |
| ieee80211_free_next_beacon(link); |
| |
| /* turn off carrier for this interface and dependent VLANs */ |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| netif_carrier_off(vlan->dev); |
| netif_carrier_off(dev); |
| |
| /* remove beacon and probe response */ |
| sdata->u.ap.active = false; |
| RCU_INIT_POINTER(link->u.ap.beacon, NULL); |
| RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); |
| RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); |
| RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); |
| kfree_rcu(old_beacon, rcu_head); |
| if (old_probe_resp) |
| kfree_rcu(old_probe_resp, rcu_head); |
| if (old_fils_discovery) |
| kfree_rcu(old_fils_discovery, rcu_head); |
| if (old_unsol_bcast_probe_resp) |
| kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); |
| |
| kfree(link_conf->ftmr_params); |
| link_conf->ftmr_params = NULL; |
| |
| __sta_info_flush(sdata, true); |
| ieee80211_free_keys(sdata, true); |
| |
| link_conf->enable_beacon = false; |
| sdata->beacon_rate_set = false; |
| sdata->vif.cfg.ssid_len = 0; |
| clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
| ieee80211_link_info_change_notify(sdata, link, |
| BSS_CHANGED_BEACON_ENABLED); |
| |
| if (sdata->wdev.cac_started) { |
| chandef = link_conf->chandef; |
| cancel_delayed_work_sync(&link->dfs_cac_timer_work); |
| cfg80211_cac_event(sdata->dev, &chandef, |
| NL80211_RADAR_CAC_ABORTED, |
| GFP_KERNEL); |
| } |
| |
| drv_stop_ap(sdata->local, sdata, link_conf); |
| |
| /* free all potentially still buffered bcast frames */ |
| local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); |
| ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); |
| |
| mutex_lock(&local->mtx); |
| ieee80211_link_copy_chanctx_to_vlans(link, true); |
| ieee80211_link_release_channel(link); |
| mutex_unlock(&local->mtx); |
| |
| return 0; |
| } |
| |
| static int sta_apply_auth_flags(struct ieee80211_local *local, |
| struct sta_info *sta, |
| u32 mask, u32 set) |
| { |
| int ret; |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| !test_sta_flag(sta, WLAN_STA_AUTH)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| set & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| /* |
| * When peer becomes associated, init rate control as |
| * well. Some drivers require rate control initialized |
| * before drv_sta_state() is called. |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) |
| rate_control_rate_init(sta); |
| |
| ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); |
| else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| else |
| ret = 0; |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
| test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && |
| test_sta_flag(sta, WLAN_STA_AUTH)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_NONE); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void sta_apply_mesh_params(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct station_parameters *params) |
| { |
| #ifdef CONFIG_MAC80211_MESH |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| u32 changed = 0; |
| |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { |
| switch (params->plink_state) { |
| case NL80211_PLINK_ESTAB: |
| if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) |
| changed = mesh_plink_inc_estab_count(sdata); |
| sta->mesh->plink_state = params->plink_state; |
| sta->mesh->aid = params->peer_aid; |
| |
| ieee80211_mps_sta_status_update(sta); |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| sdata->u.mesh.mshcfg.power_mode); |
| |
| ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); |
| /* init at low value */ |
| ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); |
| |
| break; |
| case NL80211_PLINK_LISTEN: |
| case NL80211_PLINK_BLOCKED: |
| case NL80211_PLINK_OPN_SNT: |
| case NL80211_PLINK_OPN_RCVD: |
| case NL80211_PLINK_CNF_RCVD: |
| case NL80211_PLINK_HOLDING: |
| if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) |
| changed = mesh_plink_dec_estab_count(sdata); |
| sta->mesh->plink_state = params->plink_state; |
| |
| ieee80211_mps_sta_status_update(sta); |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| NL80211_MESH_POWER_UNKNOWN); |
| break; |
| default: |
| /* nothing */ |
| break; |
| } |
| } |
| |
| switch (params->plink_action) { |
| case NL80211_PLINK_ACTION_NO_ACTION: |
| /* nothing */ |
| break; |
| case NL80211_PLINK_ACTION_OPEN: |
| changed |= mesh_plink_open(sta); |
| break; |
| case NL80211_PLINK_ACTION_BLOCK: |
| changed |= mesh_plink_block(sta); |
| break; |
| } |
| |
| if (params->local_pm) |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| params->local_pm); |
| |
| ieee80211_mbss_info_change_notify(sdata, changed); |
| #endif |
| } |
| |
| static int sta_link_apply_parameters(struct ieee80211_local *local, |
| struct sta_info *sta, bool new_link, |
| struct link_station_parameters *params) |
| { |
| int ret = 0; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| u32 link_id = params->link_id < 0 ? 0 : params->link_id; |
| struct ieee80211_link_data *link = |
| sdata_dereference(sdata->link[link_id], sdata); |
| struct link_sta_info *link_sta = |
| rcu_dereference_protected(sta->link[link_id], |
| lockdep_is_held(&local->sta_mtx)); |
| |
| /* |
| * If there are no changes, then accept a link that doesn't exist, |
| * unless it's a new link. |
| */ |
| if (params->link_id < 0 && !new_link && |
| !params->link_mac && !params->txpwr_set && |
| !params->supported_rates_len && |
| !params->ht_capa && !params->vht_capa && |
| !params->he_capa && !params->eht_capa && |
| !params->opmode_notif_used) |
| return 0; |
| |
| if (!link || !link_sta) |
| return -EINVAL; |
| |
| sband = ieee80211_get_link_sband(link); |
| if (!sband) |
| return -EINVAL; |
| |
| if (params->link_mac) { |
| if (new_link) { |
| memcpy(link_sta->addr, params->link_mac, ETH_ALEN); |
| memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); |
| } else if (!ether_addr_equal(link_sta->addr, |
| params->link_mac)) { |
| return -EINVAL; |
| } |
| } else if (new_link) { |
| return -EINVAL; |
| } |
| |
| if (params->txpwr_set) { |
| link_sta->pub->txpwr.type = params->txpwr.type; |
| if (params->txpwr.type == NL80211_TX_POWER_LIMITED) |
| link_sta->pub->txpwr.power = params->txpwr.power; |
| ret = drv_sta_set_txpwr(local, sdata, sta); |
| if (ret) |
| return ret; |
| } |
| |
| if (params->supported_rates && |
| params->supported_rates_len) { |
| ieee80211_parse_bitrates(link->conf->chandef.width, |
| sband, params->supported_rates, |
| params->supported_rates_len, |
| &link_sta->pub->supp_rates[sband->band]); |
| } |
| |
| if (params->ht_capa) |
| ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
| params->ht_capa, link_sta); |
| |
| /* VHT can override some HT caps such as the A-MSDU max length */ |
| if (params->vht_capa) |
| ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
| params->vht_capa, link_sta); |
| |
| if (params->he_capa) |
| ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, |
| (void *)params->he_capa, |
| params->he_capa_len, |
| (void *)params->he_6ghz_capa, |
| link_sta); |
| |
| if (params->eht_capa) |
| ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, |
| (u8 *)params->he_capa, |
| params->he_capa_len, |
| params->eht_capa, |
| params->eht_capa_len, |
| link_sta); |
| |
| if (params->opmode_notif_used) { |
| /* returned value is only needed for rc update, but the |
| * rc isn't initialized here yet, so ignore it |
| */ |
| __ieee80211_vht_handle_opmode(sdata, link_sta, |
| params->opmode_notif, |
| sband->band); |
| } |
| |
| return ret; |
| } |
| |
| static int sta_apply_parameters(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct station_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| u32 mask, set; |
| int ret = 0; |
| |
| mask = params->sta_flags_mask; |
| set = params->sta_flags_set; |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| /* |
| * In mesh mode, ASSOCIATED isn't part of the nl80211 |
| * API but must follow AUTHENTICATED for driver state. |
| */ |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| /* |
| * TDLS -- everything follows authorized, but |
| * only becoming authorized is possible, not |
| * going back |
| */ |
| if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED); |
| mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED); |
| } |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_WME) && |
| local->hw.queues >= IEEE80211_NUM_ACS) |
| sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); |
| |
| /* auth flags will be set later for TDLS, |
| * and for unassociated stations that move to associated */ |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
| (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { |
| ret = sta_apply_auth_flags(local, sta, mask, set); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
| if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
| set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| else |
| clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
| sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); |
| if (set & BIT(NL80211_STA_FLAG_MFP)) |
| set_sta_flag(sta, WLAN_STA_MFP); |
| else |
| clear_sta_flag(sta, WLAN_STA_MFP); |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { |
| if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| set_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| else |
| clear_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| } |
| |
| /* mark TDLS channel switch support, if the AP allows it */ |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && |
| params->ext_capab_len >= 4 && |
| params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) |
| set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); |
| |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !sdata->u.mgd.tdls_wider_bw_prohibited && |
| ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && |
| params->ext_capab_len >= 8 && |
| params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) |
| set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); |
| |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
| sta->sta.uapsd_queues = params->uapsd_queues; |
| sta->sta.max_sp = params->max_sp; |
| } |
| |
| ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, |
| params->ext_capab_len); |
| |
| /* |
| * cfg80211 validates this (1-2007) and allows setting the AID |
| * only when creating a new station entry |
| */ |
| if (params->aid) |
| sta->sta.aid = params->aid; |
| |
| /* |
| * Some of the following updates would be racy if called on an |
| * existing station, via ieee80211_change_station(). However, |
| * all such changes are rejected by cfg80211 except for updates |
| * changing the supported rates on an existing but not yet used |
| * TDLS peer. |
| */ |
| |
| if (params->listen_interval >= 0) |
| sta->listen_interval = params->listen_interval; |
| |
| ret = sta_link_apply_parameters(local, sta, false, |
| ¶ms->link_sta_params); |
| if (ret) |
| return ret; |
| |
| if (params->support_p2p_ps >= 0) |
| sta->sta.support_p2p_ps = params->support_p2p_ps; |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) |
| sta_apply_mesh_params(local, sta, params); |
| |
| if (params->airtime_weight) |
| sta->airtime_weight = params->airtime_weight; |
| |
| /* set the STA state after all sta info from usermode has been set */ |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || |
| set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { |
| ret = sta_apply_auth_flags(local, sta, mask, set); |
| if (ret) |
| return ret; |
| } |
| |
| /* Mark the STA as MLO if MLD MAC address is available */ |
| if (params->link_sta_params.mld_mac) |
| sta->sta.mlo = true; |
| |
| return 0; |
| } |
| |
| static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *mac, |
| struct station_parameters *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct sta_info *sta; |
| struct ieee80211_sub_if_data *sdata; |
| int err; |
| |
| if (params->vlan) { |
| sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| |
| if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
| sdata->vif.type != NL80211_IFTYPE_AP) |
| return -EINVAL; |
| } else |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (ether_addr_equal(mac, sdata->vif.addr)) |
| return -EINVAL; |
| |
| if (!is_valid_ether_addr(mac)) |
| return -EINVAL; |
| |
| if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && |
| sdata->vif.type == NL80211_IFTYPE_STATION && |
| !sdata->u.mgd.associated) |
| return -EINVAL; |
| |
| /* |
| * If we have a link ID, it can be a non-MLO station on an AP MLD, |
| * but we need to have a link_mac in that case as well, so use the |
| * STA's MAC address in that case. |
| */ |
| if (params->link_sta_params.link_id >= 0) |
| sta = sta_info_alloc_with_link(sdata, mac, |
| params->link_sta_params.link_id, |
| params->link_sta_params.link_mac ?: mac, |
| GFP_KERNEL); |
| else |
| sta = sta_info_alloc(sdata, mac, GFP_KERNEL); |
| |
| if (!sta) |
| return -ENOMEM; |
| |
| if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| sta->sta.tdls = true; |
| |
| /* Though the mutex is not needed here (since the station is not |
| * visible yet), sta_apply_parameters (and inner functions) require |
| * the mutex due to other paths. |
| */ |
| mutex_lock(&local->sta_mtx); |
| err = sta_apply_parameters(local, sta, params); |
| mutex_unlock(&local->sta_mtx); |
| if (err) { |
| sta_info_free(local, sta); |
| return err; |
| } |
| |
| /* |
| * for TDLS and for unassociated station, rate control should be |
| * initialized only when rates are known and station is marked |
| * authorized/associated |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| test_sta_flag(sta, WLAN_STA_ASSOC)) |
| rate_control_rate_init(sta); |
| |
| return sta_info_insert(sta); |
| } |
| |
| static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, |
| struct station_del_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (params->mac) |
| return sta_info_destroy_addr_bss(sdata, params->mac); |
| |
| sta_info_flush(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_station(struct wiphy *wiphy, |
| struct net_device *dev, const u8 *mac, |
| struct station_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct sta_info *sta; |
| struct ieee80211_sub_if_data *vlansdata; |
| enum cfg80211_station_type statype; |
| int err; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_bss(sdata, mac); |
| if (!sta) { |
| err = -ENOENT; |
| goto out_err; |
| } |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_MESH_POINT: |
| if (sdata->u.mesh.user_mpm) |
| statype = CFG80211_STA_MESH_PEER_USER; |
| else |
| statype = CFG80211_STA_MESH_PEER_KERNEL; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| statype = CFG80211_STA_IBSS; |
| break; |
| case NL80211_IFTYPE_STATION: |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| statype = CFG80211_STA_AP_STA; |
| break; |
| } |
| if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| statype = CFG80211_STA_TDLS_PEER_ACTIVE; |
| else |
| statype = CFG80211_STA_TDLS_PEER_SETUP; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| if (test_sta_flag(sta, WLAN_STA_ASSOC)) |
| statype = CFG80211_STA_AP_CLIENT; |
| else |
| statype = CFG80211_STA_AP_CLIENT_UNASSOC; |
| break; |
| default: |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| err = cfg80211_check_station_change(wiphy, params, statype); |
| if (err) |
| goto out_err; |
| |
| if (params->vlan && params->vlan != sta->sdata->dev) { |
| vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| |
| if (params->vlan->ieee80211_ptr->use_4addr) { |
| if (vlansdata->u.vlan.sta) { |
| err = -EBUSY; |
| goto out_err; |
| } |
| |
| rcu_assign_pointer(vlansdata->u.vlan.sta, sta); |
| __ieee80211_check_fast_rx_iface(vlansdata); |
| drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); |
| } |
| |
| if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && |
| sta->sdata->u.vlan.sta) { |
| ieee80211_clear_fast_rx(sta); |
| RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); |
| } |
| |
| if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| ieee80211_vif_dec_num_mcast(sta->sdata); |
| |
| sta->sdata = vlansdata; |
| ieee80211_check_fast_xmit(sta); |
| |
| if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { |
| ieee80211_vif_inc_num_mcast(sta->sdata); |
| cfg80211_send_layer2_update(sta->sdata->dev, |
| sta->sta.addr); |
| } |
| } |
| |
| /* we use sta_info_get_bss() so this might be different */ |
| if (sdata != sta->sdata) { |
| mutex_lock_nested(&sta->sdata->wdev.mtx, 1); |
| err = sta_apply_parameters(local, sta, params); |
| mutex_unlock(&sta->sdata->wdev.mtx); |
| } else { |
| err = sta_apply_parameters(local, sta, params); |
| } |
| if (err) |
| goto out_err; |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| if (sdata->vif.type == NL80211_IFTYPE_STATION && |
| params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| ieee80211_recalc_ps(local); |
| ieee80211_recalc_ps_vif(sdata); |
| } |
| |
| return 0; |
| out_err: |
| mutex_unlock(&local->sta_mtx); |
| return err; |
| } |
| |
| #ifdef CONFIG_MAC80211_MESH |
| static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst, const u8 *next_hop) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| struct sta_info *sta; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| sta = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mpath = mesh_path_add(sdata, dst); |
| if (IS_ERR(mpath)) { |
| rcu_read_unlock(); |
| return PTR_ERR(mpath); |
| } |
| |
| mesh_path_fix_nexthop(mpath, sta); |
| |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (dst) |
| return mesh_path_del(sdata, dst); |
| |
| mesh_path_flush_by_iface(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst, const u8 *next_hop) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| struct sta_info *sta; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| |
| sta = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mpath = mesh_path_lookup(sdata, dst); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mesh_path_fix_nexthop(mpath, sta); |
| |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, |
| struct mpath_info *pinfo) |
| { |
| struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); |
| |
| if (next_hop_sta) |
| memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); |
| else |
| eth_zero_addr(next_hop); |
| |
| memset(pinfo, 0, sizeof(*pinfo)); |
| |
| pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; |
| |
| pinfo->filled = MPATH_INFO_FRAME_QLEN | |
| MPATH_INFO_SN | |
| MPATH_INFO_METRIC | |
| MPATH_INFO_EXPTIME | |
| MPATH_INFO_DISCOVERY_TIMEOUT | |
| MPATH_INFO_DISCOVERY_RETRIES | |
| MPATH_INFO_FLAGS | |
| MPATH_INFO_HOP_COUNT | |
| MPATH_INFO_PATH_CHANGE; |
| |
| pinfo->frame_qlen = mpath->frame_queue.qlen; |
| pinfo->sn = mpath->sn; |
| pinfo->metric = mpath->metric; |
| if (time_before(jiffies, mpath->exp_time)) |
| pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); |
| pinfo->discovery_timeout = |
| jiffies_to_msecs(mpath->discovery_timeout); |
| pinfo->discovery_retries = mpath->discovery_retries; |
| if (mpath->flags & MESH_PATH_ACTIVE) |
| pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; |
| if (mpath->flags & MESH_PATH_RESOLVING) |
| pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; |
| if (mpath->flags & MESH_PATH_SN_VALID) |
| pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; |
| if (mpath->flags & MESH_PATH_FIXED) |
| pinfo->flags |= NL80211_MPATH_FLAG_FIXED; |
| if (mpath->flags & MESH_PATH_RESOLVED) |
| pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; |
| pinfo->hop_count = mpath->hop_count; |
| pinfo->path_change_count = mpath->path_change_count; |
| } |
| |
| static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst, u8 *next_hop, struct mpath_info *pinfo) |
| |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mesh_path_lookup(sdata, dst); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpath_set_pinfo(mpath, next_hop, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *dst, u8 *next_hop, |
| struct mpath_info *pinfo) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mesh_path_lookup_by_idx(sdata, idx); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpath_set_pinfo(mpath, next_hop, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, |
| struct mpath_info *pinfo) |
| { |
| memset(pinfo, 0, sizeof(*pinfo)); |
| memcpy(mpp, mpath->mpp, ETH_ALEN); |
| |
| pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; |
| } |
| |
| static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst, u8 *mpp, struct mpath_info *pinfo) |
| |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mpp_path_lookup(sdata, dst); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpp_set_pinfo(mpath, mpp, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *dst, u8 *mpp, |
| struct mpath_info *pinfo) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mpp_path_lookup_by_idx(sdata, idx); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpp_set_pinfo(mpath, mpp, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_get_mesh_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct mesh_config *conf) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); |
| return 0; |
| } |
| |
| static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) |
| { |
| return (mask >> (parm-1)) & 0x1; |
| } |
| |
| static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, |
| const struct mesh_setup *setup) |
| { |
| u8 *new_ie; |
| struct ieee80211_sub_if_data *sdata = container_of(ifmsh, |
| struct ieee80211_sub_if_data, u.mesh); |
| int i; |
| |
| /* allocate information elements */ |
| new_ie = NULL; |
| |
| if (setup->ie_len) { |
| new_ie = kmemdup(setup->ie, setup->ie_len, |
| GFP_KERNEL); |
| if (!new_ie) |
| return -ENOMEM; |
| } |
| ifmsh->ie_len = setup->ie_len; |
| ifmsh->ie = new_ie; |
| |
| /* now copy the rest of the setup parameters */ |
| ifmsh->mesh_id_len = setup->mesh_id_len; |
| memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); |
| ifmsh->mesh_sp_id = setup->sync_method; |
| ifmsh->mesh_pp_id = setup->path_sel_proto; |
| ifmsh->mesh_pm_id = setup->path_metric; |
| ifmsh->user_mpm = setup->user_mpm; |
| ifmsh->mesh_auth_id = setup->auth_id; |
| ifmsh->security = IEEE80211_MESH_SEC_NONE; |
| ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; |
| if (setup->is_authenticated) |
| ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; |
| if (setup->is_secure) |
| ifmsh->security |= IEEE80211_MESH_SEC_SECURED; |
| |
| /* mcast rate setting in Mesh Node */ |
| memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, |
| sizeof(setup->mcast_rate)); |
| sdata->vif.bss_conf.basic_rates = setup->basic_rates; |
| |
| sdata->vif.bss_conf.beacon_int = setup->beacon_interval; |
| sdata->vif.bss_conf.dtim_period = setup->dtim_period; |
| |
| sdata->beacon_rate_set = false; |
| if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, |
| NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { |
| sdata->beacon_rateidx_mask[i] = |
| setup->beacon_rate.control[i].legacy; |
| if (sdata->beacon_rateidx_mask[i]) |
| sdata->beacon_rate_set = true; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_update_mesh_config(struct wiphy *wiphy, |
| struct net_device *dev, u32 mask, |
| const struct mesh_config *nconf) |
| { |
| struct mesh_config *conf; |
| struct ieee80211_sub_if_data *sdata; |
| struct ieee80211_if_mesh *ifmsh; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| ifmsh = &sdata->u.mesh; |
| |
| /* Set the config options which we are interested in setting */ |
| conf = &(sdata->u.mesh.mshcfg); |
| if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) |
| conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) |
| conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) |
| conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) |
| conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) |
| conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; |
| if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) |
| conf->dot11MeshTTL = nconf->dot11MeshTTL; |
| if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) |
| conf->element_ttl = nconf->element_ttl; |
| if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { |
| if (ifmsh->user_mpm) |
| return -EBUSY; |
| conf->auto_open_plinks = nconf->auto_open_plinks; |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) |
| conf->dot11MeshNbrOffsetMaxNeighbor = |
| nconf->dot11MeshNbrOffsetMaxNeighbor; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) |
| conf->dot11MeshHWMPmaxPREQretries = |
| nconf->dot11MeshHWMPmaxPREQretries; |
| if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) |
| conf->path_refresh_time = nconf->path_refresh_time; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) |
| conf->min_discovery_timeout = nconf->min_discovery_timeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) |
| conf->dot11MeshHWMPactivePathTimeout = |
| nconf->dot11MeshHWMPactivePathTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) |
| conf->dot11MeshHWMPpreqMinInterval = |
| nconf->dot11MeshHWMPpreqMinInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) |
| conf->dot11MeshHWMPperrMinInterval = |
| nconf->dot11MeshHWMPperrMinInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
| mask)) |
| conf->dot11MeshHWMPnetDiameterTraversalTime = |
| nconf->dot11MeshHWMPnetDiameterTraversalTime; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { |
| conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; |
| ieee80211_mesh_root_setup(ifmsh); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { |
| /* our current gate announcement implementation rides on root |
| * announcements, so require this ifmsh to also be a root node |
| * */ |
| if (nconf->dot11MeshGateAnnouncementProtocol && |
| !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { |
| conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; |
| ieee80211_mesh_root_setup(ifmsh); |
| } |
| conf->dot11MeshGateAnnouncementProtocol = |
| nconf->dot11MeshGateAnnouncementProtocol; |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) |
| conf->dot11MeshHWMPRannInterval = |
| nconf->dot11MeshHWMPRannInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) |
| conf->dot11MeshForwarding = nconf->dot11MeshForwarding; |
| if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { |
| /* our RSSI threshold implementation is supported only for |
| * devices that report signal in dBm. |
| */ |
| if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) |
| return -ENOTSUPP; |
| conf->rssi_threshold = nconf->rssi_threshold; |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { |
| conf->ht_opmode = nconf->ht_opmode; |
| sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| BSS_CHANGED_HT); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) |
| conf->dot11MeshHWMPactivePathToRootTimeout = |
| nconf->dot11MeshHWMPactivePathToRootTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) |
| conf->dot11MeshHWMProotInterval = |
| nconf->dot11MeshHWMProotInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) |
| conf->dot11MeshHWMPconfirmationInterval = |
| nconf->dot11MeshHWMPconfirmationInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { |
| conf->power_mode = nconf->power_mode; |
| ieee80211_mps_local_status_update(sdata); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) |
| conf->dot11MeshAwakeWindowDuration = |
| nconf->dot11MeshAwakeWindowDuration; |
| if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) |
| conf->plink_timeout = nconf->plink_timeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) |
| conf->dot11MeshConnectedToMeshGate = |
| nconf->dot11MeshConnectedToMeshGate; |
| if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) |
| conf->dot11MeshNolearn = nconf->dot11MeshNolearn; |
| if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) |
| conf->dot11MeshConnectedToAuthServer = |
| nconf->dot11MeshConnectedToAuthServer; |
| ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); |
| return 0; |
| } |
| |
| static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, |
| const struct mesh_config *conf, |
| const struct mesh_setup *setup) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| int err; |
| |
| memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); |
| err = copy_mesh_setup(ifmsh, setup); |
| if (err) |
| return err; |
| |
| sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; |
| |
| /* can mesh use other SMPS modes? */ |
| sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; |
| sdata->deflink.needed_rx_chains = sdata->local->rx_chains; |
| |
| mutex_lock(&sdata->local->mtx); |
| err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| mutex_unlock(&sdata->local->mtx); |
| if (err) |
| return err; |
| |
| return ieee80211_start_mesh(sdata); |
| } |
| |
| static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| ieee80211_stop_mesh(sdata); |
| mutex_lock(&sdata->local->mtx); |
| ieee80211_link_release_channel(&sdata->deflink); |
| kfree(sdata->u.mesh.ie); |
| mutex_unlock(&sdata->local->mtx); |
| |
| return 0; |
| } |
| #endif |
| |
| static int ieee80211_change_bss(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct bss_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link; |
| struct ieee80211_supported_band *sband; |
| u32 changed = 0; |
| |
| link = ieee80211_link_or_deflink(sdata, params->link_id, true); |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| if (!sdata_dereference(link->u.ap.beacon, sdata)) |
| return -ENOENT; |
| |
| sband = ieee80211_get_link_sband(link); |
| if (!sband) |
| return -EINVAL; |
| |
| if (params->use_cts_prot >= 0) { |
| link->conf->use_cts_prot = params->use_cts_prot; |
| changed |= BSS_CHANGED_ERP_CTS_PROT; |
| } |
| if (params->use_short_preamble >= 0) { |
| link->conf->use_short_preamble = params->use_short_preamble; |
| changed |= BSS_CHANGED_ERP_PREAMBLE; |
| } |
| |
| if (!link->conf->use_short_slot && |
| (sband->band == NL80211_BAND_5GHZ || |
| sband->band == NL80211_BAND_6GHZ)) { |
| link->conf->use_short_slot = true; |
| changed |= BSS_CHANGED_ERP_SLOT; |
| } |
| |
| if (params->use_short_slot_time >= 0) { |
| link->conf->use_short_slot = params->use_short_slot_time; |
| changed |= BSS_CHANGED_ERP_SLOT; |
| } |
| |
| if (params->basic_rates) { |
| ieee80211_parse_bitrates(link->conf->chandef.width, |
| wiphy->bands[sband->band], |
| params->basic_rates, |
| params->basic_rates_len, |
| &link->conf->basic_rates); |
| changed |= BSS_CHANGED_BASIC_RATES; |
| ieee80211_check_rate_mask(link); |
| } |
| |
| if (params->ap_isolate >= 0) { |
| if (params->ap_isolate) |
| sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| else |
| sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| ieee80211_check_fast_rx_iface(sdata); |
| } |
| |
| if (params->ht_opmode >= 0) { |
| link->conf->ht_operation_mode = (u16)params->ht_opmode; |
| changed |= BSS_CHANGED_HT; |
| } |
| |
| if (params->p2p_ctwindow >= 0) { |
| link->conf->p2p_noa_attr.oppps_ctwindow &= |
| ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| link->conf->p2p_noa_attr.oppps_ctwindow |= |
| params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| changed |= BSS_CHANGED_P2P_PS; |
| } |
| |
| if (params->p2p_opp_ps > 0) { |
| link->conf->p2p_noa_attr.oppps_ctwindow |= |
| IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| changed |= BSS_CHANGED_P2P_PS; |
| } else if (params->p2p_opp_ps == 0) { |
| link->conf->p2p_noa_attr.oppps_ctwindow &= |
| ~IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| changed |= BSS_CHANGED_P2P_PS; |
| } |
| |
| ieee80211_link_info_change_notify(sdata, link, changed); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_txq_params(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct ieee80211_txq_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link = |
| ieee80211_link_or_deflink(sdata, params->link_id, true); |
| struct ieee80211_tx_queue_params p; |
| |
| if (!local->ops->conf_tx) |
| return -EOPNOTSUPP; |
| |
| if (local->hw.queues < IEEE80211_NUM_ACS) |
| return -EOPNOTSUPP; |
| |
| if (IS_ERR(link)) |
| return PTR_ERR(link); |
| |
| memset(&p, 0, sizeof(p)); |
| p.aifs = params->aifs; |
| p.cw_max = params->cwmax; |
| p.cw_min = params->cwmin; |
| p.txop = params->txop; |
| |
| /* |
| * Setting tx queue params disables u-apsd because it's only |
| * called in master mode. |
| */ |
| p.uapsd = false; |
| |
| ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); |
| |
| link->tx_conf[params->ac] = p; |
| if (drv_conf_tx(local, link, params->ac, &p)) { |
| wiphy_debug(local->hw.wiphy, |
| "failed to set TX queue parameters for AC %d\n", |
| params->ac); |
| return -EINVAL; |
| } |
| |
| ieee80211_link_info_change_notify(sdata, link, |
| BSS_CHANGED_QOS); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int ieee80211_suspend(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wowlan) |
| { |
| return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); |
| } |
| |
| static int ieee80211_resume(struct wiphy *wiphy) |
| { |
| return __ieee80211_resume(wiphy_priv(wiphy)); |
| } |
| #else |
| #define ieee80211_suspend NULL |
| #define ieee80211_resume NULL |
| #endif |
| |
| static int ieee80211_scan(struct wiphy *wiphy, |
| struct cfg80211_scan_request *req) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); |
| |
| switch (ieee80211_vif_type_p2p(&sdata->vif)) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_MESH_POINT: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| break; |
| case NL80211_IFTYPE_P2P_GO: |
| if (sdata->local->ops->hw_scan) |
| break; |
| /* |
| * FIXME: implement NoA while scanning in software, |
| * for now fall through to allow scanning only when |
| * beaconing hasn't been configured yet |
| */ |
| fallthrough; |
| case NL80211_IFTYPE_AP: |
| /* |
| * If the scan has been forced (and the driver supports |
| * forcing), don't care about being beaconing already. |
| * This will create problems to the attached stations (e.g. all |
| * the frames sent while scanning on other channel will be |
| * lost) |
| */ |
| if (sdata->deflink.u.ap.beacon && |
| (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || |
| !(req->flags & NL80211_SCAN_FLAG_AP))) |
| return -EOPNOTSUPP; |
| break; |
| case NL80211_IFTYPE_NAN: |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return ieee80211_request_scan(sdata, req); |
| } |
| |
| static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) |
| { |
| ieee80211_scan_cancel(wiphy_priv(wiphy)); |
| } |
| |
| static int |
| ieee80211_sched_scan_start(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_sched_scan_request *req) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!sdata->local->ops->sched_scan_start) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_request_sched_scan_start(sdata, req); |
| } |
| |
| static int |
| ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, |
| u64 reqid) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->sched_scan_stop) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_request_sched_scan_stop(local); |
| } |
| |
| static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_auth_request *req) |
| { |
| return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_assoc_request *req) |
| { |
| return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_deauth_request *req) |
| { |
| return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_disassoc_request *req) |
| { |
| return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params) |
| { |
| return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); |
| } |
| |
| static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| { |
| return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); |
| } |
| |
| static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, |
| struct ocb_setup *setup) |
| { |
| return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); |
| } |
| |
| static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) |
| { |
| return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); |
| } |
| |
| static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, |
| int rate[NUM_NL80211_BANDS]) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| memcpy(sdata->vif.bss_conf.mcast_rate, rate, |
| sizeof(int) * NUM_NL80211_BANDS); |
| |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| BSS_CHANGED_MCAST_RATE); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int err; |
| |
| if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
| ieee80211_check_fast_xmit_all(local); |
| |
| err = drv_set_frag_threshold(local, wiphy->frag_threshold); |
| |
| if (err) { |
| ieee80211_check_fast_xmit_all(local); |
| return err; |
| } |
| } |
| |
| if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || |
| (changed & WIPHY_PARAM_DYN_ACK)) { |
| s16 coverage_class; |
| |
| coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? |
| wiphy->coverage_class : -1; |
| err = drv_set_coverage_class(local, coverage_class); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| err = drv_set_rts_threshold(local, wiphy->rts_threshold); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RETRY_SHORT) { |
| if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) |
| return -EINVAL; |
| local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
| } |
| if (changed & WIPHY_PARAM_RETRY_LONG) { |
| if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) |
| return -EINVAL; |
| local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| } |
| if (changed & |
| (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
| |
| if (changed & (WIPHY_PARAM_TXQ_LIMIT | |
| WIPHY_PARAM_TXQ_MEMORY_LIMIT | |
| WIPHY_PARAM_TXQ_QUANTUM)) |
| ieee80211_txq_set_params(local); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_tx_power(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, int mbm) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| enum nl80211_tx_power_setting txp_type = type; |
| bool update_txp_type = false; |
| bool has_monitor = false; |
| |
| if (wdev) { |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
| sdata = wiphy_dereference(local->hw.wiphy, |
| local->monitor_sdata); |
| if (!sdata) |
| return -EOPNOTSUPP; |
| } |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| sdata->deflink.user_power_level = |
| IEEE80211_UNSET_POWER_LEVEL; |
| txp_type = NL80211_TX_POWER_LIMITED; |
| break; |
| case NL80211_TX_POWER_LIMITED: |
| case NL80211_TX_POWER_FIXED: |
| if (mbm < 0 || (mbm % 100)) |
| return -EOPNOTSUPP; |
| sdata->deflink.user_power_level = MBM_TO_DBM(mbm); |
| break; |
| } |
| |
| if (txp_type != sdata->vif.bss_conf.txpower_type) { |
| update_txp_type = true; |
| sdata->vif.bss_conf.txpower_type = txp_type; |
| } |
| |
| ieee80211_recalc_txpower(sdata, update_txp_type); |
| |
| return 0; |
| } |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| txp_type = NL80211_TX_POWER_LIMITED; |
| break; |
| case NL80211_TX_POWER_LIMITED: |
| case NL80211_TX_POWER_FIXED: |
| if (mbm < 0 || (mbm % 100)) |
| return -EOPNOTSUPP; |
| local->user_power_level = MBM_TO_DBM(mbm); |
| break; |
| } |
| |
| mutex_lock(&local->iflist_mtx); |
| list_for_each_entry(sdata, &local->interfaces, list) { |
| if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
| has_monitor = true; |
| continue; |
| } |
| sdata->deflink.user_power_level = local->user_power_level; |
| if (txp_type != sdata->vif.bss_conf.txpower_type) |
| update_txp_type = true; |
| sdata->vif.bss_conf.txpower_type = txp_type; |
| } |
| list_for_each_entry(sdata, &local->interfaces, list) { |
| if (sdata->vif.type == NL80211_IFTYPE_MONITOR) |
| continue; |
| ieee80211_recalc_txpower(sdata, update_txp_type); |
| } |
| mutex_unlock(&local->iflist_mtx); |
| |
| if (has_monitor) { |
| sdata = wiphy_dereference(local->hw.wiphy, |
| local->monitor_sdata); |
| if (sdata) { |
| sdata->deflink.user_power_level = local->user_power_level; |
| if (txp_type != sdata->vif.bss_conf.txpower_type) |
| update_txp_type = true; |
| sdata->vif.bss_conf.txpower_type = txp_type; |
| |
| ieee80211_recalc_txpower(sdata, update_txp_type); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_get_tx_power(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| int *dbm) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| if (local->ops->get_txpower) |
| return drv_get_txpower(local, sdata, dbm); |
| |
| if (!local->use_chanctx) |
| *dbm = local->hw.conf.power_level; |
| else |
| *dbm = sdata->vif.bss_conf.txpower; |
| |
| return 0; |
| } |
| |
| static void ieee80211_rfkill_poll(struct wiphy *wiphy) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| drv_rfkill_poll(local); |
| } |
| |
| #ifdef CONFIG_NL80211_TESTMODE |
| static int ieee80211_testmode_cmd(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| void *data, int len) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_vif *vif = NULL; |
| |
| if (!local->ops->testmode_cmd) |
| return -EOPNOTSUPP; |
| |
| if (wdev) { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) |
| vif = &sdata->vif; |
| } |
| |
| return local->ops->testmode_cmd(&local->hw, vif, data, len); |
| } |
| |
| static int ieee80211_testmode_dump(struct wiphy *wiphy, |
| struct sk_buff *skb, |
| struct netlink_callback *cb, |
| void *data, int len) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->testmode_dump) |
| return -EOPNOTSUPP; |
| |
| return local->ops->testmode_dump(&local->hw, skb, cb, data, len); |
| } |
| #endif |
| |
| int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_link_data *link, |
| enum ieee80211_smps_mode smps_mode) |
| { |
| const u8 *ap; |
| enum ieee80211_smps_mode old_req; |
| int err; |
| struct sta_info *sta; |
| bool tdls_peer_found = false; |
| |
| lockdep_assert_held(&sdata->wdev.mtx); |
| |
| if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
| return -EINVAL; |
| |
| old_req = link->u.mgd.req_smps; |
| link->u.mgd.req_smps = smps_mode; |
| |
| if (old_req == smps_mode && |
| smps_mode != IEEE80211_SMPS_AUTOMATIC) |
| return 0; |
| |
| /* |
| * If not associated, or current association is not an HT |
| * association, there's no need to do anything, just store |
| * the new value until we associate. |
| */ |
| if (!sdata->u.mgd.associated || |
| link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
| return 0; |
| |
| ap = link->u.mgd.bssid; |
| |
| rcu_read_lock(); |
| list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { |
| if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || |
| !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| continue; |
| |
| tdls_peer_found = true; |
| break; |
| } |
| rcu_read_unlock(); |
| |
| if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
| if (tdls_peer_found || !sdata->u.mgd.powersave) |
| smps_mode = IEEE80211_SMPS_OFF; |
| else |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| } |
| |
| /* send SM PS frame to AP */ |
| err = ieee80211_send_smps_action(sdata, smps_mode, |
| ap, ap); |
| if (err) |
| link->u.mgd.req_smps = old_req; |
| else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) |
| ieee80211_teardown_tdls_peers(sdata); |
| |
| return err; |
| } |
| |
| static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, |
| bool enabled, int timeout) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| unsigned int link_id; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| return -EOPNOTSUPP; |
| |
| if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) |
| return -EOPNOTSUPP; |
| |
| if (enabled == sdata->u.mgd.powersave && |
| timeout == local->dynamic_ps_forced_timeout) |
| return 0; |
| |
| sdata->u.mgd.powersave = enabled; |
| local->dynamic_ps_forced_timeout = timeout; |
| |
| /* no change, but if automatic follow powersave */ |
| sdata_lock(sdata); |
| for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { |
| struct ieee80211_link_data *link; |
| |
| link = sdata_dereference(sdata->link[link_id], sdata); |
| |
| if (!link) |
| continue; |
| __ieee80211_request_smps_mgd(sdata, link, |
| link->u.mgd.req_smps); |
| } |
| sdata_unlock(sdata); |
| |
| if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
| |
| ieee80211_recalc_ps(local); |
| ieee80211_recalc_ps_vif(sdata); |
| ieee80211_check_fast_rx_iface(sdata); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| s32 rssi_thold, u32 rssi_hyst) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_vif *vif = &sdata->vif; |
| struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
| |
| if (rssi_thold == bss_conf->cqm_rssi_thold && |
| rssi_hyst == bss_conf->cqm_rssi_hyst) |
| return 0; |
| |
| if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && |
| !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) |
| return -EOPNOTSUPP; |
| |
| bss_conf->cqm_rssi_thold = rssi_thold; |
| bss_conf->cqm_rssi_hyst = rssi_hyst; |
| bss_conf->cqm_rssi_low = 0; |
| bss_conf->cqm_rssi_high = 0; |
| sdata->deflink.u.mgd.last_cqm_event_signal = 0; |
| |
| /* tell the driver upon association, unless already associated */ |
| if (sdata->u.mgd.associated && |
| sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| BSS_CHANGED_CQM); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| s32 rssi_low, s32 rssi_high) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_vif *vif = &sdata->vif; |
| struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
| |
| if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
| return -EOPNOTSUPP; |
| |
| bss_conf->cqm_rssi_low = rssi_low; |
| bss_conf->cqm_rssi_high = rssi_high; |
| bss_conf->cqm_rssi_thold = 0; |
| bss_conf->cqm_rssi_hyst = 0; |
| sdata->deflink.u.mgd.last_cqm_event_signal = 0; |
| |
| /* tell the driver upon association, unless already associated */ |
| if (sdata->u.mgd.associated && |
| sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| BSS_CHANGED_CQM); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, |
| struct net_device *dev, |
| unsigned int link_id, |
| const u8 *addr, |
| const struct cfg80211_bitrate_mask *mask) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| int i, ret; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| /* |
| * If active validate the setting and reject it if it doesn't leave |
| * at least one basic rate usable, since we really have to be able |
| * to send something, and if we're an AP we have to be able to do |
| * so at a basic rate so that all clients can receive it. |
| */ |
| if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && |
| sdata->vif.bss_conf.chandef.chan) { |
| u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
| enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; |
| |
| if (!(mask->control[band].legacy & basic_rates)) |
| return -EINVAL; |
| } |
| |
| if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { |
| ret = drv_set_bitrate_mask(local, sdata, mask); |
| if (ret) |
| return ret; |
| } |
| |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { |
| struct ieee80211_supported_band *sband = wiphy->bands[i]; |
| int j; |
| |
| sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
| memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, |
| sizeof(mask->control[i].ht_mcs)); |
| memcpy(sdata->rc_rateidx_vht_mcs_mask[i], |
| mask->control[i].vht_mcs, |
| sizeof(mask->control[i].vht_mcs)); |
| |
| sdata->rc_has_mcs_mask[i] = false; |
| sdata->rc_has_vht_mcs_mask[i] = false; |
| if (!sband) |
| continue; |
| |
| for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { |
| if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { |
| sdata->rc_has_mcs_mask[i] = true; |
| break; |
| } |
| } |
| |
| for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { |
| if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { |
| sdata->rc_has_vht_mcs_mask[i] = true; |
| break; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_start_radar_detection(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_chan_def *chandef, |
| u32 cac_time_ms) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| int err; |
| |
| mutex_lock(&local->mtx); |
| if (!list_empty(&local->roc_list) || local->scanning) { |
| err = -EBUSY; |
| goto out_unlock; |
| } |
| |
| /* whatever, but channel contexts should not complain about that one */ |
| sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; |
| sdata->deflink.needed_rx_chains = local->rx_chains; |
| |
| err = ieee80211_link_use_channel(&sdata->deflink, chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (err) |
| goto out_unlock; |
| |
| ieee80211_queue_delayed_work(&sdata->local->hw, |
| &sdata->deflink.dfs_cac_timer_work, |
| msecs_to_jiffies(cac_time_ms)); |
| |
| out_unlock: |
| mutex_unlock(&local->mtx); |
| return err; |
| } |
| |
| static void ieee80211_end_cac(struct wiphy *wiphy, |
| struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| |
| mutex_lock(&local->mtx); |
| list_for_each_entry(sdata, &local->interfaces, list) { |
| /* it might be waiting for the local->mtx, but then |
| * by the time it gets it, sdata->wdev.cac_started |
| * will no longer be true |
| */ |
| cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); |
| |
| if (sdata->wdev.cac_started) { |
| ieee80211_link_release_channel(&sdata->deflink); |
| sdata->wdev.cac_started = false; |
| } |
| } |
| mutex_unlock(&local->mtx); |
| } |
| |
| static struct cfg80211_beacon_data * |
| cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) |
| { |
| struct cfg80211_beacon_data *new_beacon; |
| u8 *pos; |
| int len; |
| |
| len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + |
| beacon->proberesp_ies_len + beacon->assocresp_ies_len + |
| beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + |
| ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); |
| |
| new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); |
| if (!new_beacon) |
| return NULL; |
| |
| if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { |
| new_beacon->mbssid_ies = |
| kzalloc(struct_size(new_beacon->mbssid_ies, |
| elem, beacon->mbssid_ies->cnt), |
| GFP_KERNEL); |
| if (!new_beacon->mbssid_ies) { |
| kfree(new_beacon); |
| return NULL; |
| } |
| } |
| |
| pos = (u8 *)(new_beacon + 1); |
| if (beacon->head_len) { |
| new_beacon->head_len = beacon->head_len; |
| new_beacon->head = pos; |
| memcpy(pos, beacon->head, beacon->head_len); |
| pos += beacon->head_len; |
| } |
| if (beacon->tail_len) { |
| new_beacon->tail_len = beacon->tail_len; |
| new_beacon->tail = pos; |
| memcpy(pos, beacon->tail, beacon->tail_len); |
| pos += beacon->tail_len; |
| } |
| if (beacon->beacon_ies_len) { |
| new_beacon->beacon_ies_len = beacon->beacon_ies_len; |
| new_beacon->beacon_ies = pos; |
| memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); |
| pos += beacon->beacon_ies_len; |
| } |
| if (beacon->proberesp_ies_len) { |
| new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; |
| new_beacon->proberesp_ies = pos; |
| memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); |
| pos += beacon->proberesp_ies_len; |
| } |
| if (beacon->assocresp_ies_len) { |
| new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; |
| new_beacon->assocresp_ies = pos; |
| memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); |
| pos += beacon->assocresp_ies_len; |
| } |
| if (beacon->probe_resp_len) { |
| new_beacon->probe_resp_len = beacon->probe_resp_len; |
| new_beacon->probe_resp = pos; |
| memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); |
| pos += beacon->probe_resp_len; |
| } |
| if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) |
| pos += ieee80211_copy_mbssid_beacon(pos, |
| new_beacon->mbssid_ies, |
| beacon->mbssid_ies); |
| |
| /* might copy -1, meaning no changes requested */ |
| new_beacon->ftm_responder = beacon->ftm_responder; |
| if (beacon->lci) { |
| new_beacon->lci_len = beacon->lci_len; |
| new_beacon->lci = pos; |
| memcpy(pos, beacon->lci, beacon->lci_len); |
| pos += beacon->lci_len; |
| } |
| if (beacon->civicloc) { |
| new_beacon->civicloc_len = beacon->civicloc_len; |
| new_beacon->civicloc = pos; |
| memcpy(pos, beacon->civicloc, beacon->civicloc_len); |
| pos += beacon->civicloc_len; |
| } |
| |
| return new_beacon; |
| } |
| |
| void ieee80211_csa_finish(struct ieee80211_vif *vif) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| struct ieee80211_local *local = sdata->local; |
| |
| rcu_read_lock(); |
| |
| if (vif->mbssid_tx_vif == vif) { |
| /* Trigger ieee80211_csa_finish() on the non-transmitting |
| * interfaces when channel switch is received on |
| * transmitting interface |
| */ |
| struct ieee80211_sub_if_data *iter; |
| |
| list_for_each_entry_rcu(iter, &local->interfaces, list) { |
| if (!ieee80211_sdata_running(iter)) |
| continue; |
| |
| if (iter == sdata || iter->vif.mbssid_tx_vif != vif) |
| continue; |
| |
| ieee80211_queue_work(&iter->local->hw, |
| &iter->deflink.csa_finalize_work); |
| } |
| } |
| ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); |
| |
| rcu_read_unlock(); |
| } |
| EXPORT_SYMBOL(ieee80211_csa_finish); |
| |
| void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
| struct ieee80211_local *local = sdata->local; |
| |
| sdata->deflink.csa_block_tx = block_tx; |
| sdata_info(sdata, "channel switch failed, disconnecting\n"); |
| ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); |
| } |
| EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); |
| |
| static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| u32 *changed) |
| { |
| int err; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: |
| if (!sdata->deflink.u.ap.next_beacon) |
| return -EINVAL; |
| |
| err = ieee80211_assign_beacon(sdata, &sdata->deflink, |
| sdata->deflink.u.ap.next_beacon, |
| NULL, NULL); |
| ieee80211_free_next_beacon(&sdata->deflink); |
| |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| err = ieee80211_ibss_finish_csa(sdata); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| #ifdef CONFIG_MAC80211_MESH |
| case NL80211_IFTYPE_MESH_POINT: |
| err = ieee80211_mesh_finish_csa(sdata); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| #endif |
| default: |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| { |
| struct ieee80211_local *local = sdata->local; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| lockdep_assert_held(&local->mtx); |
| lockdep_assert_held(&local->chanctx_mtx); |
| |
| /* |
| * using reservation isn't immediate as it may be deferred until later |
| * with multi-vif. once reservation is complete it will re-schedule the |
| * work with no reserved_chanctx so verify chandef to check if it |
| * completed successfully |
| */ |
| |
| if (sdata->deflink.reserved_chanctx) { |
| /* |
| * with multi-vif csa driver may call ieee80211_csa_finish() |
| * many times while waiting for other interfaces to use their |
| * reservations |
| */ |
| if (sdata->deflink.reserved_ready) |
| return 0; |
| |
| return ieee80211_link_use_reserved_context(&sdata->deflink); |
| } |
| |
| if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, |
| &sdata->deflink.csa_chandef)) |
| return -EINVAL; |
| |
| sdata->vif.bss_conf.csa_active = false; |
| |
| err = ieee80211_set_after_csa_beacon(sdata, &changed); |
| if (err) |
| return err; |
| |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); |
| |
| if (sdata->deflink.csa_block_tx) { |
| ieee80211_wake_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| sdata->deflink.csa_block_tx = false; |
| } |
| |
| err = drv_post_channel_switch(sdata); |
| if (err) |
| return err; |
| |
| cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0); |
| |
| return 0; |
| } |
| |
| static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| { |
| if (__ieee80211_csa_finalize(sdata)) { |
| sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); |
| cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, |
| GFP_KERNEL); |
| } |
| } |
| |
| void ieee80211_csa_finalize_work(struct work_struct *work) |
| { |
| struct ieee80211_sub_if_data *sdata = |
| container_of(work, struct ieee80211_sub_if_data, |
| deflink.csa_finalize_work); |
| struct ieee80211_local *local = sdata->local; |
| |
| sdata_lock(sdata); |
| mutex_lock(&local->mtx); |
| mutex_lock(&local->chanctx_mtx); |
| |
| /* AP might have been stopped while waiting for the lock. */ |
| if (!sdata->vif.bss_conf.csa_active) |
| goto unlock; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| goto unlock; |
| |
| ieee80211_csa_finalize(sdata); |
| |
| unlock: |
| mutex_unlock(&local->chanctx_mtx); |
| mutex_unlock(&local->mtx); |
| sdata_unlock(sdata); |
| } |
| |
| static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_csa_settings *params, |
| u32 *changed) |
| { |
| struct ieee80211_csa_settings csa = {}; |
| int err; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: |
| sdata->deflink.u.ap.next_beacon = |
| cfg80211_beacon_dup(¶ms->beacon_after); |
| if (!sdata->deflink.u.ap.next_beacon) |
| return -ENOMEM; |
| |
| /* |
| * With a count of 0, we don't have to wait for any |
| * TBTT before switching, so complete the CSA |
| * immediately. In theory, with a count == 1 we |
| * should delay the switch until just before the next |
| * TBTT, but that would complicate things so we switch |
| * immediately too. If we would delay the switch |
| * until the next TBTT, we would have to set the probe |
| * response here. |
| * |
| * TODO: A channel switch with count <= 1 without |
| * sending a CSA action frame is kind of useless, |
| * because the clients won't know we're changing |
| * channels. The action frame must be implemented |
| * either here or in the userspace. |
| */ |
| if (params->count <= 1) |
| break; |
| |
| if ((params->n_counter_offsets_beacon > |
| IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || |
| (params->n_counter_offsets_presp > |
| IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { |
| ieee80211_free_next_beacon(&sdata->deflink); |
| return -EINVAL; |
| } |
| |
| csa.counter_offsets_beacon = params->counter_offsets_beacon; |
| csa.counter_offsets_presp = params->counter_offsets_presp; |
| csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; |
| csa.n_counter_offsets_presp = params->n_counter_offsets_presp; |
| csa.count = params->count; |
| |
| err = ieee80211_assign_beacon(sdata, &sdata->deflink, |
| ¶ms->beacon_csa, &csa, |
| NULL); |
| if (err < 0) { |
| ieee80211_free_next_beacon(&sdata->deflink); |
| return err; |
| } |
| *changed |= err; |
| |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (!sdata->vif.cfg.ibss_joined) |
| return -EINVAL; |
| |
| if (params->chandef.width != sdata->u.ibss.chandef.width) |
| return -EINVAL; |
| |
| switch (params->chandef.width) { |
| case NL80211_CHAN_WIDTH_40: |
| if (cfg80211_get_chandef_type(¶ms->chandef) != |
| cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) |
| return -EINVAL; |
| break; |
| case NL80211_CHAN_WIDTH_5: |
| case NL80211_CHAN_WIDTH_10: |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| case NL80211_CHAN_WIDTH_20: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* changes into another band are not supported */ |
| if (sdata->u.ibss.chandef.chan->band != |
| params->chandef.chan->band) |
| return -EINVAL; |
| |
| /* see comments in the NL80211_IFTYPE_AP block */ |
| if (params->count > 1) { |
| err = ieee80211_ibss_csa_beacon(sdata, params); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| } |
| |
| ieee80211_send_action_csa(sdata, params); |
| |
| break; |
| #ifdef CONFIG_MAC80211_MESH |
| case NL80211_IFTYPE_MESH_POINT: { |
| struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| |
| /* changes into another band are not supported */ |
| if (sdata->vif.bss_conf.chandef.chan->band != |
| params->chandef.chan->band) |
| return -EINVAL; |
| |
| if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { |
| ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; |
| if (!ifmsh->pre_value) |
| ifmsh->pre_value = 1; |
| else |
| ifmsh->pre_value++; |
| } |
| |
| /* see comments in the NL80211_IFTYPE_AP block */ |
| if (params->count > 1) { |
| err = ieee80211_mesh_csa_beacon(sdata, params); |
| if (err < 0) { |
| ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; |
| return err; |
| } |
| *changed |= err; |
| } |
| |
| if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) |
| ieee80211_send_action_csa(sdata, params); |
| |
| break; |
| } |
| #endif |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) |
| { |
| sdata->vif.bss_conf.color_change_active = false; |
| |
| ieee80211_free_next_beacon(&sdata->deflink); |
| |
| cfg80211_color_change_aborted_notify(sdata->dev); |
| } |
| |
| static int |
| __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_csa_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_channel_switch ch_switch; |
| struct ieee80211_chanctx_conf *conf; |
| struct ieee80211_chanctx *chanctx; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| lockdep_assert_held(&local->mtx); |
| |
| if (!list_empty(&local->roc_list) || local->scanning) |
| return -EBUSY; |
| |
| if (sdata->wdev.cac_started) |
| return -EBUSY; |
| |
| if (cfg80211_chandef_identical(¶ms->chandef, |
| &sdata->vif.bss_conf.chandef)) |
| return -EINVAL; |
| |
| /* don't allow another channel switch if one is already active. */ |
| if (sdata->vif.bss_conf.csa_active) |
| return -EBUSY; |
| |
| mutex_lock(&local->chanctx_mtx); |
| conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, |
| lockdep_is_held(&local->chanctx_mtx)); |
| if (!conf) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| if (params->chandef.chan->freq_offset) { |
| /* this may work, but is untested */ |
| err = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| chanctx = container_of(conf, struct ieee80211_chanctx, conf); |
| |
| ch_switch.timestamp = 0; |
| ch_switch.device_timestamp = 0; |
| ch_switch.block_tx = params->block_tx; |
| ch_switch.chandef = params->chandef; |
| ch_switch.count = params->count; |
| |
| err = drv_pre_channel_switch(sdata, &ch_switch); |
| if (err) |
| goto out; |
| |
| err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, |
| chanctx->mode, |
| params->radar_required); |
| if (err) |
| goto out; |
| |
| /* if reservation is invalid then this will fail */ |
| err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); |
| if (err) { |
| ieee80211_link_unreserve_chanctx(&sdata->deflink); |
| goto out; |
| } |
| |
| /* if there is a color change in progress, abort it */ |
| if (sdata->vif.bss_conf.color_change_active) |
| ieee80211_color_change_abort(sdata); |
| |
| err = ieee80211_set_csa_beacon(sdata, params, &changed); |
| if (err) { |
| ieee80211_link_unreserve_chanctx(&sdata->deflink); |
| goto out; |
| } |
| |
| sdata->deflink.csa_chandef = params->chandef; |
| sdata->deflink.csa_block_tx = params->block_tx; |
| sdata->vif.bss_conf.csa_active = true; |
| |
| if (sdata->deflink.csa_block_tx) |
| ieee80211_stop_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| |
| cfg80211_ch_switch_started_notify(sdata->dev, |
| &sdata->deflink.csa_chandef, 0, |
| params->count, params->block_tx); |
| |
| if (changed) { |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
| changed); |
| drv_channel_switch_beacon(sdata, ¶ms->chandef); |
| } else { |
| /* if the beacon didn't change, we can finalize immediately */ |
| ieee80211_csa_finalize(sdata); |
| } |
| |
| out: |
| mutex_unlock(&local->chanctx_mtx); |
| return err; |
| } |
| |
| int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_csa_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| int err; |
| |
| mutex_lock(&local->mtx); |
| err = __ieee80211_channel_switch(wiphy, dev, params); |
| mutex_unlock(&local->mtx); |
| |
| return err; |
| } |
| |
| u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) |
| { |
| lockdep_assert_held(&local->mtx); |
| |
| local->roc_cookie_counter++; |
| |
| /* wow, you wrapped 64 bits ... more likely a bug */ |
| if (WARN_ON(local->roc_cookie_counter == 0)) |
| local->roc_cookie_counter++; |
| |
| return local->roc_cookie_counter; |
| } |
| |
| int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, |
| u64 *cookie, gfp_t gfp) |
| { |
| unsigned long spin_flags; |
| struct sk_buff *ack_skb; |
| int id; |
| |
| ack_skb = skb_copy(skb, gfp); |
| if (!ack_skb) |
| return -ENOMEM; |
| |
| spin_lock_irqsave(&local->ack_status_lock, spin_flags); |
| id = idr_alloc(&local->ack_status_frames, ack_skb, |
| 1, 0x2000, GFP_ATOMIC); |
| spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); |
| |
| if (id < 0) { |
| kfree_skb(ack_skb); |
| return -ENOMEM; |
| } |
| |
| IEEE80211_SKB_CB(skb)->ack_frame_id = id; |
| |
| *cookie = ieee80211_mgmt_tx_cookie(local); |
| IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; |
| |
| return 0; |
| } |
| |
| static void |
| ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct mgmt_frame_regs *upd) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); |
| u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); |
| bool global_change, intf_change; |
| |
| global_change = |
| (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || |
| (local->rx_mcast_action_reg != |
| !!(upd->global_mcast_stypes & action_mask)); |
| local->probe_req_reg = upd->global_stypes & preq_mask; |
| local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; |
| |
| intf_change = (sdata->vif.probe_req_reg != |
| !!(upd->interface_stypes & preq_mask)) || |
| (sdata->vif.rx_mcast_action_reg != |
| !!(upd->interface_mcast_stypes & action_mask)); |
| sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; |
| sdata->vif.rx_mcast_action_reg = |
| upd->interface_mcast_stypes & action_mask; |
| |
| if (!local->open_count) |
| return; |
| |
| if (intf_change && ieee80211_sdata_running(sdata)) |
| drv_config_iface_filter(local, sdata, |
| sdata->vif.probe_req_reg ? |
| FIF_PROBE_REQ : 0, |
| FIF_PROBE_REQ); |
| |
| if (global_change) |
| ieee80211_configure_filter(local); |
| } |
| |
| static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (local->started) |
| return -EOPNOTSUPP; |
| |
| return drv_set_antenna(local, tx_ant, rx_ant); |
| } |
| |
| static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| return drv_get_antenna(local, tx_ant, rx_ant); |
| } |
| |
| static int ieee80211_set_rekey_data(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_gtk_rekey_data *data) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!local->ops->set_rekey_data) |
| return -EOPNOTSUPP; |
| |
| drv_set_rekey_data(local, sdata, data); |
| |
| return 0; |
| } |
| |
| static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *peer, u64 *cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_qos_hdr *nullfunc; |
| struct sk_buff *skb; |
| int size = sizeof(*nullfunc); |
| __le16 fc; |
| bool qos; |
| struct ieee80211_tx_info *info; |
| struct sta_info *sta; |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| enum nl80211_band band; |
| int ret; |
| |
| /* the lock is needed to assign the cookie later */ |
| mutex_lock(&local->mtx); |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); |
| if (WARN_ON(!chanctx_conf)) { |
| ret = -EINVAL; |
| goto unlock; |
| } |
| band = chanctx_conf->def.chan->band; |
| sta = sta_info_get_bss(sdata, peer); |
| if (sta) { |
| qos = sta->sta.wme; |
| } else { |
| ret = -ENOLINK; |
| goto unlock; |
| } |
| |
| if (qos) { |
| fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| IEEE80211_STYPE_QOS_NULLFUNC | |
| IEEE80211_FCTL_FROMDS); |
| } else { |
| size -= 2; |
| fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| IEEE80211_STYPE_NULLFUNC | |
| IEEE80211_FCTL_FROMDS); |
| } |
| |
| skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); |
| if (!skb) { |
| ret = -ENOMEM; |
| goto unlock; |
| } |
| |
| skb->dev = dev; |
| |
| skb_reserve(skb, local->hw.extra_tx_headroom); |
| |
| nullfunc = skb_put(skb, size); |
| nullfunc->frame_control = fc; |
| nullfunc->duration_id = 0; |
| memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); |
| memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
| memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); |
| nullfunc->seq_ctrl = 0; |
| |
| info = IEEE80211_SKB_CB(skb); |
| |
| info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
| IEEE80211_TX_INTFL_NL80211_FRAME_TX; |
| info->band = band; |
| |
| skb_set_queue_mapping(skb, IEEE80211_AC_VO); |
| skb->priority = 7; |
| if (qos) |
| nullfunc->qos_ctrl = cpu_to_le16(7); |
| |
| ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); |
| if (ret) { |
| kfree_skb(skb); |
| goto unlock; |
| } |
| |
| local_bh_disable(); |
| ieee80211_xmit(sdata, sta, skb); |
| local_bh_enable(); |
| |
| ret = 0; |
| unlock: |
| rcu_read_unlock(); |
| mutex_unlock(&local->mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_cfg_get_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| unsigned int link_id, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| struct ieee80211_link_data *link; |
| int ret = -ENODATA; |
| |
| rcu_read_lock(); |
| link = rcu_dereference(sdata->link[link_id]); |
| if (!link) { |
| ret = -ENOLINK; |
| goto out; |
| } |
| |
| chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
| if (chanctx_conf) { |
| *chandef = link->conf->chandef; |
| ret = 0; |
| } else if (local->open_count > 0 && |
| local->open_count == local->monitors && |
| sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
| if (local->use_chanctx) |
| *chandef = local->monitor_chandef; |
| else |
| *chandef = local->_oper_chandef; |
| ret = 0; |
| } |
| out: |
| rcu_read_unlock(); |
| |
| return ret; |
| } |
| |
| #ifdef CONFIG_PM |
| static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) |
| { |
| drv_set_wakeup(wiphy_priv(wiphy), enabled); |
| } |
| #endif |
| |
| static int ieee80211_set_qos_map(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_qos_map *qos_map) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct mac80211_qos_map *new_qos_map, *old_qos_map; |
| |
| if (qos_map) { |
| new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); |
| if (!new_qos_map) |
| return -ENOMEM; |
| memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); |
| } else { |
| /* A NULL qos_map was passed to disable QoS mapping */ |
| new_qos_map = NULL; |
| } |
| |
| old_qos_map = sdata_dereference(sdata->qos_map, sdata); |
| rcu_assign_pointer(sdata->qos_map, new_qos_map); |
| if (old_qos_map) |
| kfree_rcu(old_qos_map, rcu_head); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, |
| struct net_device *dev, |
| unsigned int link_id, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_link_data *link; |
| int ret; |
| u32 changed = 0; |
| |
| link = sdata_dereference(sdata->link[link_id], sdata); |
| |
| ret = ieee80211_link_change_bandwidth(link, chandef, &changed); |
| if (ret == 0) |
| ieee80211_link_info_change_notify(sdata, link, changed); |
| |
| return ret; |
| } |
| |
| static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, |
| u8 tsid, const u8 *peer, u8 up, |
| u16 admitted_time) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
| int ac = ieee802_1d_to_ac[up]; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| return -EOPNOTSUPP; |
| |
| if (!(sdata->wmm_acm & BIT(up))) |
| return -EINVAL; |
| |
| if (ifmgd->tx_tspec[ac].admitted_time) |
| return -EBUSY; |
| |
| if (admitted_time) { |
| ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; |
| ifmgd->tx_tspec[ac].tsid = tsid; |
| ifmgd->tx_tspec[ac].up = up; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, |
| u8 tsid, const u8 *peer) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int ac; |
| |
| for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
| struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; |
| |
| /* skip unused entries */ |
| if (!tx_tspec->admitted_time) |
| continue; |
| |
| if (tx_tspec->tsid != tsid) |
| continue; |
| |
| /* due to this new packets will be reassigned to non-ACM ACs */ |
| tx_tspec->up = -1; |
| |
| /* Make sure that all packets have been sent to avoid to |
| * restore the QoS params on packets that are still on the |
| * queues. |
| */ |
| synchronize_net(); |
| ieee80211_flush_queues(local, sdata, false); |
| |
| /* restore the normal QoS parameters |
| * (unconditionally to avoid races) |
| */ |
| tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; |
| tx_tspec->downgraded = false; |
| ieee80211_sta_handle_tspec_ac_params(sdata); |
| |
| /* finally clear all the data */ |
| memset(tx_tspec, 0, sizeof(*tx_tspec)); |
| |
| return 0; |
| } |
| |
| return -ENOENT; |
| } |
| |
| void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, |
| u8 inst_id, |
| enum nl80211_nan_func_term_reason reason, |
| gfp_t gfp) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| struct cfg80211_nan_func *func; |
| u64 cookie; |
| |
| if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) |
| return; |
| |
| spin_lock_bh(&sdata->u.nan.func_lock); |
| |
| func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); |
| if (WARN_ON(!func)) { |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| return; |
| } |
| |
| cookie = func->cookie; |
| idr_remove(&sdata->u.nan.function_inst_ids, inst_id); |
| |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| |
| cfg80211_free_nan_func(func); |
| |
| cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, |
| reason, cookie, gfp); |
| } |
| EXPORT_SYMBOL(ieee80211_nan_func_terminated); |
| |
| void ieee80211_nan_func_match(struct ieee80211_vif *vif, |
| struct cfg80211_nan_match_params *match, |
| gfp_t gfp) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| struct cfg80211_nan_func *func; |
| |
| if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) |
| return; |
| |
| spin_lock_bh(&sdata->u.nan.func_lock); |
| |
| func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); |
| if (WARN_ON(!func)) { |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| return; |
| } |
| match->cookie = func->cookie; |
| |
| spin_unlock_bh(&sdata->u.nan.func_lock); |
| |
| cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); |
| } |
| EXPORT_SYMBOL(ieee80211_nan_func_match); |
| |
| static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, |
| struct net_device *dev, |
| const bool enabled) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| sdata->u.ap.multicast_to_unicast = enabled; |
| |
| return 0; |
| } |
| |
| void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, |
| struct txq_info *txqi) |
| { |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); |
| txqstats->backlog_bytes = txqi->tin.backlog_bytes; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); |
| txqstats->backlog_packets = txqi->tin.backlog_packets; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); |
| txqstats->flows = txqi->tin.flows; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); |
| txqstats->drops = txqi->cstats.drop_count; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); |
| txqstats->ecn_marks = txqi->cstats.ecn_mark; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); |
| txqstats->overlimit = txqi->tin.overlimit; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); |
| txqstats->collisions = txqi->tin.collisions; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); |
| txqstats->tx_bytes = txqi->tin.tx_bytes; |
| } |
| |
| if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); |
| txqstats->tx_packets = txqi->tin.tx_packets; |
| } |
| } |
| |
| static int ieee80211_get_txq_stats(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct cfg80211_txq_stats *txqstats) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| int ret = 0; |
| |
| spin_lock_bh(&local->fq.lock); |
| rcu_read_lock(); |
| |
| if (wdev) { |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| if (!sdata->vif.txq) { |
| ret = 1; |
| goto out; |
| } |
| ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); |
| } else { |
| /* phy stats */ |
| txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | |
| BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | |
| BIT(NL80211_TXQ_STATS_OVERLIMIT) | |
| BIT(NL80211_TXQ_STATS_OVERMEMORY) | |
| BIT(NL80211_TXQ_STATS_COLLISIONS) | |
| BIT(NL80211_TXQ_STATS_MAX_FLOWS); |
| txqstats->backlog_packets = local->fq.backlog; |
| txqstats->backlog_bytes = local->fq.memory_usage; |
| txqstats->overlimit = local->fq.overlimit; |
| txqstats->overmemory = local->fq.overmemory; |
| txqstats->collisions = local->fq.collisions; |
| txqstats->max_flows = local->fq.flows_cnt; |
| } |
| |
| out: |
| rcu_read_unlock(); |
| spin_unlock_bh(&local->fq.lock); |
| |
| return ret; |
| } |
| |
| static int |
| ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_ftm_responder_stats *ftm_stats) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| return drv_get_ftm_responder_stats(local, sdata, ftm_stats); |
| } |
| |
| static int |
| ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, |
| struct cfg80211_pmsr_request *request) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); |
| |
| return drv_start_pmsr(local, sdata, request); |
| } |
| |
| static void |
| ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, |
| struct cfg80211_pmsr_request *request) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); |
| |
| return drv_abort_pmsr(local, sdata, request); |
| } |
| |
| static int ieee80211_set_tid_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_tid_config *tid_conf) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct sta_info *sta; |
| int ret; |
| |
| if (!sdata->local->ops->set_tid_config) |
| return -EOPNOTSUPP; |
| |
| if (!tid_conf->peer) |
| return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| sta = sta_info_get_bss(sdata, tid_conf->peer); |
| if (!sta) { |
| mutex_unlock(&sdata->local->sta_mtx); |
| return -ENOENT; |
| } |
| |
| ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_reset_tid_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| const u8 *peer, u8 tids) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct sta_info *sta; |
| int ret; |
| |
| if (!sdata->local->ops->reset_tid_config) |
| return -EOPNOTSUPP; |
| |
| if (!peer) |
| return drv_reset_tid_config(sdata->local, sdata, NULL, tids); |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| sta = sta_info_get_bss(sdata, peer); |
| if (!sta) { |
| mutex_unlock(&sdata->local->sta_mtx); |
| return -ENOENT; |
| } |
| |
| ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_set_sar_specs(struct wiphy *wiphy, |
| struct cfg80211_sar_specs *sar) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->set_sar_specs) |
| return -EOPNOTSUPP; |
| |
| return local->ops->set_sar_specs(&local->hw, sar); |
| } |
| |
| static int |
| ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, |
| u32 *changed) |
| { |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: { |
| int ret; |
| |
| if (!sdata->deflink.u.ap.next_beacon) |
| return -EINVAL; |
| |
| ret = ieee80211_assign_beacon(sdata, &sdata->deflink, |
| sdata->deflink.u.ap.next_beacon, |
| NULL, NULL); |
| ieee80211_free_next_beacon(&sdata->deflink); |
| |
| if (ret < 0) |
| return ret; |
| |
| *changed |= ret; |
| break; |
| } |
| default: |
| WARN_ON_ONCE(1); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_color_change_settings *params, |
| u32 *changed) |
| { |
| struct ieee80211_color_change_settings color_change = {}; |
| int err; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: |
| sdata->deflink.u.ap.next_beacon = |
| cfg80211_beacon_dup(¶ms->beacon_next); |
| if (!sdata->deflink.u.ap.next_beacon) |
| return -ENOMEM; |
| |
| if (params->count <= 1) |
| break; |
| |
| color_change.counter_offset_beacon = |
| params->counter_offset_beacon; |
| color_change.counter_offset_presp = |
| params->counter_offset_presp; |
| color_change.count = params->count; |
| |
| err = ieee80211_assign_beacon(sdata, &sdata->deflink, |
| ¶ms->beacon_color_change, |
| NULL, &color_change); |
| if (err < 0) { |
| ieee80211_free_next_beacon(&sdata->deflink); |
| return err; |
| } |
| *changed |= err; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static void |
| ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, |
| u8 color, int enable, u32 changed) |
| { |
| sdata->vif.bss_conf.he_bss_color.color = color; |
| sdata->vif.bss_conf.he_bss_color.enabled = enable; |
| changed |= BSS_CHANGED_HE_BSS_COLOR; |
| |
| ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); |
| |
| if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { |
| struct ieee80211_sub_if_data *child; |
| |
| mutex_lock(&sdata->local->iflist_mtx); |
| list_for_each_entry(child, &sdata->local->interfaces, list) { |
| if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { |
| child->vif.bss_conf.he_bss_color.color = color; |
| child->vif.bss_conf.he_bss_color.enabled = enable; |
| ieee80211_link_info_change_notify(child, |
| &child->deflink, |
| BSS_CHANGED_HE_BSS_COLOR); |
| } |
| } |
| mutex_unlock(&sdata->local->iflist_mtx); |
| } |
| } |
| |
| static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) |
| { |
| struct ieee80211_local *local = sdata->local; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| lockdep_assert_held(&local->mtx); |
| |
| sdata->vif.bss_conf.color_change_active = false; |
| |
| err = ieee80211_set_after_color_change_beacon(sdata, &changed); |
| if (err) { |
| cfg80211_color_change_aborted_notify(sdata->dev); |
| return err; |
| } |
| |
| ieee80211_color_change_bss_config_notify(sdata, |
| sdata->vif.bss_conf.color_change_color, |
| 1, changed); |
| cfg80211_color_change_notify(sdata->dev); |
| |
| return 0; |
| } |
| |
| void ieee80211_color_change_finalize_work(struct work_struct *work) |
| { |
| struct ieee80211_sub_if_data *sdata = |
| container_of(work, struct ieee80211_sub_if_data, |
| deflink.color_change_finalize_work); |
| struct ieee80211_local *local = sdata->local; |
| |
| sdata_lock(sdata); |
| mutex_lock(&local->mtx); |
| |
| /* AP might have been stopped while waiting for the lock. */ |
| if (!sdata->vif.bss_conf.color_change_active) |
| goto unlock; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| goto unlock; |
| |
| ieee80211_color_change_finalize(sdata); |
| |
| unlock: |
| mutex_unlock(&local->mtx); |
| sdata_unlock(sdata); |
| } |
| |
| void ieee80211_color_change_finish(struct ieee80211_vif *vif) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| |
| ieee80211_queue_work(&sdata->local->hw, |
| &sdata->deflink.color_change_finalize_work); |
| } |
| EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); |
| |
| void |
| ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, |
| u64 color_bitmap, gfp_t gfp) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| |
| if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) |
| return; |
| |
| cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp); |
| } |
| EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); |
| |
| static int |
| ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_color_change_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| |
| if (sdata->vif.bss_conf.nontransmitted) |
| return -EINVAL; |
| |
| mutex_lock(&local->mtx); |
| |
| /* don't allow another color change if one is already active or if csa |
| * is active |
| */ |
| if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| err = ieee80211_set_color_change_beacon(sdata, params, &changed); |
| if (err) |
| goto out; |
| |
| sdata->vif.bss_conf.color_change_active = true; |
| sdata->vif.bss_conf.color_change_color = params->color; |
| |
| cfg80211_color_change_started_notify(sdata->dev, params->count); |
| |
| if (changed) |
| ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); |
| else |
| /* if the beacon didn't change, we can finalize immediately */ |
| ieee80211_color_change_finalize(sdata); |
| |
| out: |
| mutex_unlock(&local->mtx); |
| |
| return err; |
| } |
| |
| static int |
| ieee80211_set_radar_background(struct wiphy *wiphy, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->set_radar_background) |
| return -EOPNOTSUPP; |
| |
| return local->ops->set_radar_background(&local->hw, chandef); |
| } |
| |
| static int ieee80211_add_intf_link(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| unsigned int link_id) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| if (wdev->use_4addr) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_vif_set_links(sdata, wdev->valid_links); |
| } |
| |
| static void ieee80211_del_intf_link(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| unsigned int link_id) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| ieee80211_vif_set_links(sdata, wdev->valid_links); |
| } |
| |
| static int sta_add_link_station(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata, |
| struct link_station_parameters *params) |
| { |
| struct sta_info *sta; |
| int ret; |
| |
| sta = sta_info_get_bss(sdata, params->mld_mac); |
| if (!sta) |
| return -ENOENT; |
| |
| if (!sta->sta.valid_links) |
| return -EINVAL; |
| |
| if (sta->sta.valid_links & BIT(params->link_id)) |
| return -EALREADY; |
| |
| ret = ieee80211_sta_allocate_link(sta, params->link_id); |
| if (ret) |
| return ret; |
| |
| ret = sta_link_apply_parameters(local, sta, true, params); |
| if (ret) { |
| ieee80211_sta_free_link(sta, params->link_id); |
| return ret; |
| } |
| |
| /* ieee80211_sta_activate_link frees the link upon failure */ |
| return ieee80211_sta_activate_link(sta, params->link_id); |
| } |
| |
| static int |
| ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, |
| struct link_station_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int ret; |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| ret = sta_add_link_station(local, sdata, params); |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int sta_mod_link_station(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata, |
| struct link_station_parameters *params) |
| { |
| struct sta_info *sta; |
| |
| sta = sta_info_get_bss(sdata, params->mld_mac); |
| if (!sta) |
| return -ENOENT; |
| |
| if (!(sta->sta.valid_links & BIT(params->link_id))) |
| return -EINVAL; |
| |
| return sta_link_apply_parameters(local, sta, false, params); |
| } |
| |
| static int |
| ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, |
| struct link_station_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int ret; |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| ret = sta_mod_link_station(local, sdata, params); |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, |
| struct link_station_del_parameters *params) |
| { |
| struct sta_info *sta; |
| |
| sta = sta_info_get_bss(sdata, params->mld_mac); |
| if (!sta) |
| return -ENOENT; |
| |
| if (!(sta->sta.valid_links & BIT(params->link_id))) |
| return -EINVAL; |
| |
| /* must not create a STA without links */ |
| if (sta->sta.valid_links == BIT(params->link_id)) |
| return -EINVAL; |
| |
| ieee80211_sta_remove_link(sta, params->link_id); |
| |
| return 0; |
| } |
| |
| static int |
| ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, |
| struct link_station_del_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| int ret; |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| ret = sta_del_link_station(sdata, params); |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| const struct cfg80211_ops mac80211_config_ops = { |
| .add_virtual_intf = ieee80211_add_iface, |
| .del_virtual_intf = ieee80211_del_iface, |
| .change_virtual_intf = ieee80211_change_iface, |
| .start_p2p_device = ieee80211_start_p2p_device, |
| .stop_p2p_device = ieee80211_stop_p2p_device, |
| .add_key = ieee80211_add_key, |
| .del_key = ieee80211_del_key, |
| .get_key = ieee80211_get_key, |
| .set_default_key = ieee80211_config_default_key, |
| .set_default_mgmt_key = ieee80211_config_default_mgmt_key, |
| .set_default_beacon_key = ieee80211_config_default_beacon_key, |
| .start_ap = ieee80211_start_ap, |
| .change_beacon = ieee80211_change_beacon, |
| .stop_ap = ieee80211_stop_ap, |
| .add_station = ieee80211_add_station, |
| .del_station = ieee80211_del_station, |
| .change_station = ieee80211_change_station, |
| .get_station = ieee80211_get_station, |
| .dump_station = ieee80211_dump_station, |
| .dump_survey = ieee80211_dump_survey, |
| #ifdef CONFIG_MAC80211_MESH |
| .add_mpath = ieee80211_add_mpath, |
| .del_mpath = ieee80211_del_mpath, |
| .change_mpath = ieee80211_change_mpath, |
| .get_mpath = ieee80211_get_mpath, |
| .dump_mpath = ieee80211_dump_mpath, |
| .get_mpp = ieee80211_get_mpp, |
| .dump_mpp = ieee80211_dump_mpp, |
| .update_mesh_config = ieee80211_update_mesh_config, |
| .get_mesh_config = ieee80211_get_mesh_config, |
| .join_mesh = ieee80211_join_mesh, |
| .leave_mesh = ieee80211_leave_mesh, |
| #endif |
| .join_ocb = ieee80211_join_ocb, |
| .leave_ocb = ieee80211_leave_ocb, |
| .change_bss = ieee80211_change_bss, |
| .set_txq_params = ieee80211_set_txq_params, |
| .set_monitor_channel = ieee80211_set_monitor_channel, |
| .suspend = ieee80211_suspend, |
| .resume = ieee80211_resume, |
| .scan = ieee80211_scan, |
| .abort_scan = ieee80211_abort_scan, |
| .sched_scan_start = ieee80211_sched_scan_start, |
| .sched_scan_stop = ieee80211_sched_scan_stop, |
| .auth = ieee80211_auth, |
| .assoc = ieee80211_assoc, |
| .deauth = ieee80211_deauth, |
| .disassoc = ieee80211_disassoc, |
| .join_ibss = ieee80211_join_ibss, |
| .leave_ibss = ieee80211_leave_ibss, |
| .set_mcast_rate = ieee80211_set_mcast_rate, |
| .set_wiphy_params = ieee80211_set_wiphy_params, |
| .set_tx_power = ieee80211_set_tx_power, |
| .get_tx_power = ieee80211_get_tx_power, |
| .rfkill_poll = ieee80211_rfkill_poll, |
| CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) |
| CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) |
| .set_power_mgmt = ieee80211_set_power_mgmt, |
| .set_bitrate_mask = ieee80211_set_bitrate_mask, |
| .remain_on_channel = ieee80211_remain_on_channel, |
| .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, |
| .mgmt_tx = ieee80211_mgmt_tx, |
| .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, |
| .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
| .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, |
| .update_mgmt_frame_registrations = |
| ieee80211_update_mgmt_frame_registrations, |
| .set_antenna = ieee80211_set_antenna, |
| .get_antenna = ieee80211_get_antenna, |
| .set_rekey_data = ieee80211_set_rekey_data, |
| .tdls_oper = ieee80211_tdls_oper, |
| .tdls_mgmt = ieee80211_tdls_mgmt, |
| .tdls_channel_switch = ieee80211_tdls_channel_switch, |
| .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, |
| .probe_client = ieee80211_probe_client, |
| .set_noack_map = ieee80211_set_noack_map, |
| #ifdef CONFIG_PM |
| .set_wakeup = ieee80211_set_wakeup, |
| #endif |
| .get_channel = ieee80211_cfg_get_channel, |
| .start_radar_detection = ieee80211_start_radar_detection, |
| .end_cac = ieee80211_end_cac, |
| .channel_switch = ieee80211_channel_switch, |
| .set_qos_map = ieee80211_set_qos_map, |
| .set_ap_chanwidth = ieee80211_set_ap_chanwidth, |
| .add_tx_ts = ieee80211_add_tx_ts, |
| .del_tx_ts = ieee80211_del_tx_ts, |
| .start_nan = ieee80211_start_nan, |
| .stop_nan = ieee80211_stop_nan, |
| .nan_change_conf = ieee80211_nan_change_conf, |
| .add_nan_func = ieee80211_add_nan_func, |
| .del_nan_func = ieee80211_del_nan_func, |
| .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, |
| .tx_control_port = ieee80211_tx_control_port, |
| .get_txq_stats = ieee80211_get_txq_stats, |
| .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, |
| .start_pmsr = ieee80211_start_pmsr, |
| .abort_pmsr = ieee80211_abort_pmsr, |
| .probe_mesh_link = ieee80211_probe_mesh_link, |
| .set_tid_config = ieee80211_set_tid_config, |
| .reset_tid_config = ieee80211_reset_tid_config, |
| .set_sar_specs = ieee80211_set_sar_specs, |
| .color_change = ieee80211_color_change, |
| .set_radar_background = ieee80211_set_radar_background, |
| .add_intf_link = ieee80211_add_intf_link, |
| .del_intf_link = ieee80211_del_intf_link, |
| .add_link_station = ieee80211_add_link_station, |
| .mod_link_station = ieee80211_mod_link_station, |
| .del_link_station = ieee80211_del_link_station, |
| }; |