| // SPDX-License-Identifier: BSD-3-Clause-Clear |
| /* |
| * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. |
| */ |
| |
| #include "testmode.h" |
| #include <net/netlink.h> |
| #include "debug.h" |
| #include "wmi.h" |
| #include "hw.h" |
| #include "core.h" |
| #include "testmode_i.h" |
| |
| static const struct nla_policy ath11k_tm_policy[ATH11K_TM_ATTR_MAX + 1] = { |
| [ATH11K_TM_ATTR_CMD] = { .type = NLA_U32 }, |
| [ATH11K_TM_ATTR_DATA] = { .type = NLA_BINARY, |
| .len = ATH11K_TM_DATA_MAX_LEN }, |
| [ATH11K_TM_ATTR_WMI_CMDID] = { .type = NLA_U32 }, |
| [ATH11K_TM_ATTR_VERSION_MAJOR] = { .type = NLA_U32 }, |
| [ATH11K_TM_ATTR_VERSION_MINOR] = { .type = NLA_U32 }, |
| }; |
| |
| /* Returns true if callee consumes the skb and the skb should be discarded. |
| * Returns false if skb is not used. Does not sleep. |
| */ |
| bool ath11k_tm_event_wmi(struct ath11k *ar, u32 cmd_id, struct sk_buff *skb) |
| { |
| struct sk_buff *nl_skb; |
| bool consumed; |
| int ret; |
| |
| ath11k_dbg(ar->ab, ATH11K_DBG_TESTMODE, |
| "testmode event wmi cmd_id %d skb %pK skb->len %d\n", |
| cmd_id, skb, skb->len); |
| |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_TESTMODE, NULL, "", skb->data, skb->len); |
| |
| spin_lock_bh(&ar->data_lock); |
| |
| consumed = true; |
| |
| nl_skb = cfg80211_testmode_alloc_event_skb(ar->hw->wiphy, |
| 2 * sizeof(u32) + skb->len, |
| GFP_ATOMIC); |
| if (!nl_skb) { |
| ath11k_warn(ar->ab, |
| "failed to allocate skb for testmode wmi event\n"); |
| goto out; |
| } |
| |
| ret = nla_put_u32(nl_skb, ATH11K_TM_ATTR_CMD, ATH11K_TM_CMD_WMI); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to put testmode wmi event cmd attribute: %d\n", |
| ret); |
| kfree_skb(nl_skb); |
| goto out; |
| } |
| |
| ret = nla_put_u32(nl_skb, ATH11K_TM_ATTR_WMI_CMDID, cmd_id); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to put testmode wmi even cmd_id: %d\n", |
| ret); |
| kfree_skb(nl_skb); |
| goto out; |
| } |
| |
| ret = nla_put(nl_skb, ATH11K_TM_ATTR_DATA, skb->len, skb->data); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to copy skb to testmode wmi event: %d\n", |
| ret); |
| kfree_skb(nl_skb); |
| goto out; |
| } |
| |
| cfg80211_testmode_event(nl_skb, GFP_ATOMIC); |
| |
| out: |
| spin_unlock_bh(&ar->data_lock); |
| |
| return consumed; |
| } |
| |
| static int ath11k_tm_cmd_get_version(struct ath11k *ar, struct nlattr *tb[]) |
| { |
| struct sk_buff *skb; |
| int ret; |
| |
| ath11k_dbg(ar->ab, ATH11K_DBG_TESTMODE, |
| "testmode cmd get version_major %d version_minor %d\n", |
| ATH11K_TESTMODE_VERSION_MAJOR, |
| ATH11K_TESTMODE_VERSION_MINOR); |
| |
| skb = cfg80211_testmode_alloc_reply_skb(ar->hw->wiphy, |
| nla_total_size(sizeof(u32))); |
| if (!skb) |
| return -ENOMEM; |
| |
| ret = nla_put_u32(skb, ATH11K_TM_ATTR_VERSION_MAJOR, |
| ATH11K_TESTMODE_VERSION_MAJOR); |
| if (ret) { |
| kfree_skb(skb); |
| return ret; |
| } |
| |
| ret = nla_put_u32(skb, ATH11K_TM_ATTR_VERSION_MINOR, |
| ATH11K_TESTMODE_VERSION_MINOR); |
| if (ret) { |
| kfree_skb(skb); |
| return ret; |
| } |
| |
| return cfg80211_testmode_reply(skb); |
| } |
| |
| static int ath11k_tm_cmd_wmi(struct ath11k *ar, struct nlattr *tb[]) |
| { |
| struct ath11k_pdev_wmi *wmi = ar->wmi; |
| struct sk_buff *skb; |
| u32 cmd_id, buf_len; |
| int ret; |
| void *buf; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH11K_STATE_ON) { |
| ret = -ENETDOWN; |
| goto out; |
| } |
| |
| if (!tb[ATH11K_TM_ATTR_DATA]) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| if (!tb[ATH11K_TM_ATTR_WMI_CMDID]) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| buf = nla_data(tb[ATH11K_TM_ATTR_DATA]); |
| buf_len = nla_len(tb[ATH11K_TM_ATTR_DATA]); |
| cmd_id = nla_get_u32(tb[ATH11K_TM_ATTR_WMI_CMDID]); |
| |
| ath11k_dbg(ar->ab, ATH11K_DBG_TESTMODE, |
| "testmode cmd wmi cmd_id %d buf %pK buf_len %d\n", |
| cmd_id, buf, buf_len); |
| |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_TESTMODE, NULL, "", buf, buf_len); |
| |
| skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, buf_len); |
| if (!skb) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| memcpy(skb->data, buf, buf_len); |
| |
| ret = ath11k_wmi_cmd_send(wmi, skb, cmd_id); |
| if (ret) { |
| dev_kfree_skb(skb); |
| ath11k_warn(ar->ab, "failed to transmit wmi command (testmode): %d\n", |
| ret); |
| goto out; |
| } |
| |
| ret = 0; |
| |
| out: |
| mutex_unlock(&ar->conf_mutex); |
| return ret; |
| } |
| |
| int ath11k_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| void *data, int len) |
| { |
| struct ath11k *ar = hw->priv; |
| struct nlattr *tb[ATH11K_TM_ATTR_MAX + 1]; |
| int ret; |
| |
| ret = nla_parse(tb, ATH11K_TM_ATTR_MAX, data, len, ath11k_tm_policy, |
| NULL); |
| if (ret) |
| return ret; |
| |
| if (!tb[ATH11K_TM_ATTR_CMD]) |
| return -EINVAL; |
| |
| switch (nla_get_u32(tb[ATH11K_TM_ATTR_CMD])) { |
| case ATH11K_TM_CMD_GET_VERSION: |
| return ath11k_tm_cmd_get_version(ar, tb); |
| case ATH11K_TM_CMD_WMI: |
| return ath11k_tm_cmd_wmi(ar, tb); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |