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// 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;
}
}
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