mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 09:41:44 +00:00
04f39047af
Add new NL80211_CMD_RADAR_DETECT, which starts the Channel Availability Check (CAC). This command will also notify the usermode about events (CAC finished, CAC aborted, radar detected, NOP finished). Once radar detection has started it should continuously monitor for radars as long as the channel is active. This patch enables DFS for AP mode in nl80211/cfg80211. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> [remove WIPHY_FLAG_HAS_RADAR_DETECT again -- my mistake] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1110 lines
30 KiB
C
1110 lines
30 KiB
C
/*
|
|
* cfg80211 MLME SAP interface
|
|
*
|
|
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/nl80211.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/wireless.h>
|
|
#include <net/cfg80211.h>
|
|
#include <net/iw_handler.h>
|
|
#include "core.h"
|
|
#include "nl80211.h"
|
|
#include "rdev-ops.h"
|
|
|
|
|
|
void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_send_rx_auth(dev);
|
|
wdev_lock(wdev);
|
|
|
|
nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
|
|
cfg80211_sme_rx_auth(dev, buf, len);
|
|
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_rx_auth);
|
|
|
|
void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
|
|
const u8 *buf, size_t len)
|
|
{
|
|
u16 status_code;
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
u8 *ie = mgmt->u.assoc_resp.variable;
|
|
int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
|
|
|
|
trace_cfg80211_send_rx_assoc(dev, bss);
|
|
wdev_lock(wdev);
|
|
|
|
status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
|
|
|
|
/*
|
|
* This is a bit of a hack, we don't notify userspace of
|
|
* a (re-)association reply if we tried to send a reassoc
|
|
* and got a reject -- we only try again with an assoc
|
|
* frame instead of reassoc.
|
|
*/
|
|
if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
|
|
cfg80211_sme_failed_reassoc(wdev)) {
|
|
cfg80211_put_bss(wiphy, bss);
|
|
goto out;
|
|
}
|
|
|
|
nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
|
|
|
|
if (status_code != WLAN_STATUS_SUCCESS && wdev->conn) {
|
|
cfg80211_sme_failed_assoc(wdev);
|
|
/*
|
|
* do not call connect_result() now because the
|
|
* sme will schedule work that does it later.
|
|
*/
|
|
cfg80211_put_bss(wiphy, bss);
|
|
goto out;
|
|
}
|
|
|
|
if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
|
|
/*
|
|
* This is for the userspace SME, the CONNECTING
|
|
* state will be changed to CONNECTED by
|
|
* __cfg80211_connect_result() below.
|
|
*/
|
|
wdev->sme_state = CFG80211_SME_CONNECTING;
|
|
}
|
|
|
|
/* this consumes the bss reference */
|
|
__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
|
|
status_code,
|
|
status_code == WLAN_STATUS_SUCCESS, bss);
|
|
out:
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
|
|
|
|
void __cfg80211_send_deauth(struct net_device *dev,
|
|
const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
const u8 *bssid = mgmt->bssid;
|
|
bool was_current = false;
|
|
|
|
trace___cfg80211_send_deauth(dev);
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (wdev->current_bss &&
|
|
ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
|
|
cfg80211_unhold_bss(wdev->current_bss);
|
|
cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
|
|
wdev->current_bss = NULL;
|
|
was_current = true;
|
|
}
|
|
|
|
nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
|
|
|
|
if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) {
|
|
u16 reason_code;
|
|
bool from_ap;
|
|
|
|
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
|
|
|
|
from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
|
|
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
|
|
} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
|
|
__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
|
|
WLAN_STATUS_UNSPECIFIED_FAILURE,
|
|
false, NULL);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_send_deauth);
|
|
|
|
void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
|
|
wdev_lock(wdev);
|
|
__cfg80211_send_deauth(dev, buf, len);
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_deauth);
|
|
|
|
void __cfg80211_send_disassoc(struct net_device *dev,
|
|
const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
const u8 *bssid = mgmt->bssid;
|
|
u16 reason_code;
|
|
bool from_ap;
|
|
|
|
trace___cfg80211_send_disassoc(dev);
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
|
|
|
|
if (wdev->sme_state != CFG80211_SME_CONNECTED)
|
|
return;
|
|
|
|
if (wdev->current_bss &&
|
|
ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
|
|
cfg80211_sme_disassoc(dev, wdev->current_bss);
|
|
cfg80211_unhold_bss(wdev->current_bss);
|
|
cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
|
|
wdev->current_bss = NULL;
|
|
} else
|
|
WARN_ON(1);
|
|
|
|
|
|
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
|
|
|
|
from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
|
|
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_send_disassoc);
|
|
|
|
void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
|
|
wdev_lock(wdev);
|
|
__cfg80211_send_disassoc(dev, buf, len);
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_disassoc);
|
|
|
|
void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
|
|
size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_send_unprot_deauth(dev);
|
|
nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
|
|
|
|
void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
|
|
size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_send_unprot_disassoc(dev);
|
|
nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
|
|
|
|
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_send_auth_timeout(dev, addr);
|
|
wdev_lock(wdev);
|
|
|
|
nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
|
|
if (wdev->sme_state == CFG80211_SME_CONNECTING)
|
|
__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
|
|
WLAN_STATUS_UNSPECIFIED_FAILURE,
|
|
false, NULL);
|
|
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_auth_timeout);
|
|
|
|
void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_send_assoc_timeout(dev, addr);
|
|
wdev_lock(wdev);
|
|
|
|
nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
|
|
if (wdev->sme_state == CFG80211_SME_CONNECTING)
|
|
__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
|
|
WLAN_STATUS_UNSPECIFIED_FAILURE,
|
|
false, NULL);
|
|
|
|
wdev_unlock(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
|
|
|
|
void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
|
|
enum nl80211_key_type key_type, int key_id,
|
|
const u8 *tsc, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
union iwreq_data wrqu;
|
|
char *buf = kmalloc(128, gfp);
|
|
|
|
if (buf) {
|
|
sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
|
|
"keyid=%d %scast addr=%pM)", key_id,
|
|
key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
|
|
addr);
|
|
memset(&wrqu, 0, sizeof(wrqu));
|
|
wrqu.data.length = strlen(buf);
|
|
wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
|
|
kfree(buf);
|
|
}
|
|
#endif
|
|
|
|
trace_cfg80211_michael_mic_failure(dev, addr, key_type, key_id, tsc);
|
|
nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_michael_mic_failure);
|
|
|
|
/* some MLME handling for userspace SME */
|
|
int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
struct ieee80211_channel *chan,
|
|
enum nl80211_auth_type auth_type,
|
|
const u8 *bssid,
|
|
const u8 *ssid, int ssid_len,
|
|
const u8 *ie, int ie_len,
|
|
const u8 *key, int key_len, int key_idx,
|
|
const u8 *sae_data, int sae_data_len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_auth_request req;
|
|
int err;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
|
|
if (!key || !key_len || key_idx < 0 || key_idx > 4)
|
|
return -EINVAL;
|
|
|
|
if (wdev->current_bss &&
|
|
ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
|
|
return -EALREADY;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
|
|
req.ie = ie;
|
|
req.ie_len = ie_len;
|
|
req.sae_data = sae_data;
|
|
req.sae_data_len = sae_data_len;
|
|
req.auth_type = auth_type;
|
|
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
|
|
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
|
|
req.key = key;
|
|
req.key_len = key_len;
|
|
req.key_idx = key_idx;
|
|
if (!req.bss)
|
|
return -ENOENT;
|
|
|
|
err = cfg80211_can_use_chan(rdev, wdev, req.bss->channel,
|
|
CHAN_MODE_SHARED);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = rdev_auth(rdev, dev, &req);
|
|
|
|
out:
|
|
cfg80211_put_bss(&rdev->wiphy, req.bss);
|
|
return err;
|
|
}
|
|
|
|
int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, struct ieee80211_channel *chan,
|
|
enum nl80211_auth_type auth_type, const u8 *bssid,
|
|
const u8 *ssid, int ssid_len,
|
|
const u8 *ie, int ie_len,
|
|
const u8 *key, int key_len, int key_idx,
|
|
const u8 *sae_data, int sae_data_len)
|
|
{
|
|
int err;
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
|
|
ssid, ssid_len, ie, ie_len,
|
|
key, key_len, key_idx,
|
|
sae_data, sae_data_len);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
return err;
|
|
}
|
|
|
|
/* Do a logical ht_capa &= ht_capa_mask. */
|
|
void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
|
|
const struct ieee80211_ht_cap *ht_capa_mask)
|
|
{
|
|
int i;
|
|
u8 *p1, *p2;
|
|
if (!ht_capa_mask) {
|
|
memset(ht_capa, 0, sizeof(*ht_capa));
|
|
return;
|
|
}
|
|
|
|
p1 = (u8*)(ht_capa);
|
|
p2 = (u8*)(ht_capa_mask);
|
|
for (i = 0; i<sizeof(*ht_capa); i++)
|
|
p1[i] &= p2[i];
|
|
}
|
|
|
|
int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
struct ieee80211_channel *chan,
|
|
const u8 *bssid, const u8 *prev_bssid,
|
|
const u8 *ssid, int ssid_len,
|
|
const u8 *ie, int ie_len, bool use_mfp,
|
|
struct cfg80211_crypto_settings *crypt,
|
|
u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
|
|
struct ieee80211_ht_cap *ht_capa_mask)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_assoc_request req;
|
|
int err;
|
|
bool was_connected = false;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
|
|
if (wdev->current_bss && prev_bssid &&
|
|
ether_addr_equal(wdev->current_bss->pub.bssid, prev_bssid)) {
|
|
/*
|
|
* Trying to reassociate: Allow this to proceed and let the old
|
|
* association to be dropped when the new one is completed.
|
|
*/
|
|
if (wdev->sme_state == CFG80211_SME_CONNECTED) {
|
|
was_connected = true;
|
|
wdev->sme_state = CFG80211_SME_CONNECTING;
|
|
}
|
|
} else if (wdev->current_bss)
|
|
return -EALREADY;
|
|
|
|
req.ie = ie;
|
|
req.ie_len = ie_len;
|
|
memcpy(&req.crypto, crypt, sizeof(req.crypto));
|
|
req.use_mfp = use_mfp;
|
|
req.prev_bssid = prev_bssid;
|
|
req.flags = assoc_flags;
|
|
if (ht_capa)
|
|
memcpy(&req.ht_capa, ht_capa, sizeof(req.ht_capa));
|
|
if (ht_capa_mask)
|
|
memcpy(&req.ht_capa_mask, ht_capa_mask,
|
|
sizeof(req.ht_capa_mask));
|
|
cfg80211_oper_and_ht_capa(&req.ht_capa_mask,
|
|
rdev->wiphy.ht_capa_mod_mask);
|
|
|
|
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
|
|
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
|
|
if (!req.bss) {
|
|
if (was_connected)
|
|
wdev->sme_state = CFG80211_SME_CONNECTED;
|
|
return -ENOENT;
|
|
}
|
|
|
|
err = cfg80211_can_use_chan(rdev, wdev, req.bss->channel,
|
|
CHAN_MODE_SHARED);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = rdev_assoc(rdev, dev, &req);
|
|
|
|
out:
|
|
if (err) {
|
|
if (was_connected)
|
|
wdev->sme_state = CFG80211_SME_CONNECTED;
|
|
cfg80211_put_bss(&rdev->wiphy, req.bss);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
struct ieee80211_channel *chan,
|
|
const u8 *bssid, const u8 *prev_bssid,
|
|
const u8 *ssid, int ssid_len,
|
|
const u8 *ie, int ie_len, bool use_mfp,
|
|
struct cfg80211_crypto_settings *crypt,
|
|
u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
|
|
struct ieee80211_ht_cap *ht_capa_mask)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
wdev_lock(wdev);
|
|
err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
|
|
ssid, ssid_len, ie, ie_len, use_mfp, crypt,
|
|
assoc_flags, ht_capa, ht_capa_mask);
|
|
wdev_unlock(wdev);
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
return err;
|
|
}
|
|
|
|
int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *bssid,
|
|
const u8 *ie, int ie_len, u16 reason,
|
|
bool local_state_change)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_deauth_request req = {
|
|
.bssid = bssid,
|
|
.reason_code = reason,
|
|
.ie = ie,
|
|
.ie_len = ie_len,
|
|
.local_state_change = local_state_change,
|
|
};
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (local_state_change && (!wdev->current_bss ||
|
|
!ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
|
|
return 0;
|
|
|
|
return rdev_deauth(rdev, dev, &req);
|
|
}
|
|
|
|
int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *bssid,
|
|
const u8 *ie, int ie_len, u16 reason,
|
|
bool local_state_change)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
wdev_lock(wdev);
|
|
err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason,
|
|
local_state_change);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *bssid,
|
|
const u8 *ie, int ie_len, u16 reason,
|
|
bool local_state_change)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_disassoc_request req;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (wdev->sme_state != CFG80211_SME_CONNECTED)
|
|
return -ENOTCONN;
|
|
|
|
if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
|
|
return -ENOTCONN;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
req.reason_code = reason;
|
|
req.local_state_change = local_state_change;
|
|
req.ie = ie;
|
|
req.ie_len = ie_len;
|
|
if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
|
|
req.bss = &wdev->current_bss->pub;
|
|
else
|
|
return -ENOTCONN;
|
|
|
|
return rdev_disassoc(rdev, dev, &req);
|
|
}
|
|
|
|
int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *bssid,
|
|
const u8 *ie, int ie_len, u16 reason,
|
|
bool local_state_change)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
wdev_lock(wdev);
|
|
err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason,
|
|
local_state_change);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_deauth_request req;
|
|
u8 bssid[ETH_ALEN];
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (!rdev->ops->deauth)
|
|
return;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
req.reason_code = WLAN_REASON_DEAUTH_LEAVING;
|
|
req.ie = NULL;
|
|
req.ie_len = 0;
|
|
|
|
if (!wdev->current_bss)
|
|
return;
|
|
|
|
memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
|
|
req.bssid = bssid;
|
|
rdev_deauth(rdev, dev, &req);
|
|
|
|
if (wdev->current_bss) {
|
|
cfg80211_unhold_bss(wdev->current_bss);
|
|
cfg80211_put_bss(&rdev->wiphy, &wdev->current_bss->pub);
|
|
wdev->current_bss = NULL;
|
|
}
|
|
}
|
|
|
|
void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
unsigned int duration, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
|
|
nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, duration, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_ready_on_channel);
|
|
|
|
void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
|
|
nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
|
|
|
|
void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
|
|
struct station_info *sinfo, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_new_sta(dev, mac_addr, sinfo);
|
|
nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_new_sta);
|
|
|
|
void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_del_sta(dev, mac_addr);
|
|
nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_del_sta);
|
|
|
|
void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
|
|
enum nl80211_connect_failed_reason reason,
|
|
gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
nl80211_send_conn_failed_event(rdev, dev, mac_addr, reason, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_conn_failed);
|
|
|
|
struct cfg80211_mgmt_registration {
|
|
struct list_head list;
|
|
|
|
u32 nlportid;
|
|
|
|
int match_len;
|
|
|
|
__le16 frame_type;
|
|
|
|
u8 match[];
|
|
};
|
|
|
|
int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
|
|
u16 frame_type, const u8 *match_data,
|
|
int match_len)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct cfg80211_mgmt_registration *reg, *nreg;
|
|
int err = 0;
|
|
u16 mgmt_type;
|
|
|
|
if (!wdev->wiphy->mgmt_stypes)
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT)
|
|
return -EINVAL;
|
|
|
|
if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
|
|
return -EINVAL;
|
|
|
|
mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
|
|
if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type)))
|
|
return -EINVAL;
|
|
|
|
nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL);
|
|
if (!nreg)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
|
|
int mlen = min(match_len, reg->match_len);
|
|
|
|
if (frame_type != le16_to_cpu(reg->frame_type))
|
|
continue;
|
|
|
|
if (memcmp(reg->match, match_data, mlen) == 0) {
|
|
err = -EALREADY;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (err) {
|
|
kfree(nreg);
|
|
goto out;
|
|
}
|
|
|
|
memcpy(nreg->match, match_data, match_len);
|
|
nreg->match_len = match_len;
|
|
nreg->nlportid = snd_portid;
|
|
nreg->frame_type = cpu_to_le16(frame_type);
|
|
list_add(&nreg->list, &wdev->mgmt_registrations);
|
|
|
|
if (rdev->ops->mgmt_frame_register)
|
|
rdev_mgmt_frame_register(rdev, wdev, frame_type, true);
|
|
|
|
out:
|
|
spin_unlock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
return err;
|
|
}
|
|
|
|
void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct cfg80211_mgmt_registration *reg, *tmp;
|
|
|
|
spin_lock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
|
|
if (reg->nlportid != nlportid)
|
|
continue;
|
|
|
|
if (rdev->ops->mgmt_frame_register) {
|
|
u16 frame_type = le16_to_cpu(reg->frame_type);
|
|
|
|
rdev_mgmt_frame_register(rdev, wdev,
|
|
frame_type, false);
|
|
}
|
|
|
|
list_del(®->list);
|
|
kfree(reg);
|
|
}
|
|
|
|
spin_unlock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
if (nlportid == wdev->ap_unexpected_nlportid)
|
|
wdev->ap_unexpected_nlportid = 0;
|
|
}
|
|
|
|
void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
|
|
{
|
|
struct cfg80211_mgmt_registration *reg, *tmp;
|
|
|
|
spin_lock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
|
|
list_del(®->list);
|
|
kfree(reg);
|
|
}
|
|
|
|
spin_unlock_bh(&wdev->mgmt_registrations_lock);
|
|
}
|
|
|
|
int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
struct ieee80211_channel *chan, bool offchan,
|
|
unsigned int wait, const u8 *buf, size_t len,
|
|
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
|
|
{
|
|
const struct ieee80211_mgmt *mgmt;
|
|
u16 stype;
|
|
|
|
if (!wdev->wiphy->mgmt_stypes)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->mgmt_tx)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (len < 24 + 1)
|
|
return -EINVAL;
|
|
|
|
mgmt = (const struct ieee80211_mgmt *) buf;
|
|
|
|
if (!ieee80211_is_mgmt(mgmt->frame_control))
|
|
return -EINVAL;
|
|
|
|
stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
|
|
if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4)))
|
|
return -EINVAL;
|
|
|
|
if (ieee80211_is_action(mgmt->frame_control) &&
|
|
mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) {
|
|
int err = 0;
|
|
|
|
wdev_lock(wdev);
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
if (!wdev->current_bss) {
|
|
err = -ENOTCONN;
|
|
break;
|
|
}
|
|
|
|
if (!ether_addr_equal(wdev->current_bss->pub.bssid,
|
|
mgmt->bssid)) {
|
|
err = -ENOTCONN;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* check for IBSS DA must be done by driver as
|
|
* cfg80211 doesn't track the stations
|
|
*/
|
|
if (wdev->iftype == NL80211_IFTYPE_ADHOC)
|
|
break;
|
|
|
|
/* for station, check that DA is the AP */
|
|
if (!ether_addr_equal(wdev->current_bss->pub.bssid,
|
|
mgmt->da)) {
|
|
err = -ENOTCONN;
|
|
break;
|
|
}
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev)))
|
|
err = -EINVAL;
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) {
|
|
err = -EINVAL;
|
|
break;
|
|
}
|
|
/*
|
|
* check for mesh DA must be done by driver as
|
|
* cfg80211 doesn't track the stations
|
|
*/
|
|
break;
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
/*
|
|
* fall through, P2P device only supports
|
|
* public action frames
|
|
*/
|
|
default:
|
|
err = -EOPNOTSUPP;
|
|
break;
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!ether_addr_equal(mgmt->sa, wdev_address(wdev)))
|
|
return -EINVAL;
|
|
|
|
/* Transmit the Action frame as requested by user space */
|
|
return rdev_mgmt_tx(rdev, wdev, chan, offchan,
|
|
wait, buf, len, no_cck, dont_wait_for_ack,
|
|
cookie);
|
|
}
|
|
|
|
bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
|
|
const u8 *buf, size_t len, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct cfg80211_mgmt_registration *reg;
|
|
const struct ieee80211_txrx_stypes *stypes =
|
|
&wiphy->mgmt_stypes[wdev->iftype];
|
|
struct ieee80211_mgmt *mgmt = (void *)buf;
|
|
const u8 *data;
|
|
int data_len;
|
|
bool result = false;
|
|
__le16 ftype = mgmt->frame_control &
|
|
cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE);
|
|
u16 stype;
|
|
|
|
trace_cfg80211_rx_mgmt(wdev, freq, sig_mbm);
|
|
stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
|
|
|
|
if (!(stypes->rx & BIT(stype))) {
|
|
trace_cfg80211_return_bool(false);
|
|
return false;
|
|
}
|
|
|
|
data = buf + ieee80211_hdrlen(mgmt->frame_control);
|
|
data_len = len - ieee80211_hdrlen(mgmt->frame_control);
|
|
|
|
spin_lock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
|
|
if (reg->frame_type != ftype)
|
|
continue;
|
|
|
|
if (reg->match_len > data_len)
|
|
continue;
|
|
|
|
if (memcmp(reg->match, data, reg->match_len))
|
|
continue;
|
|
|
|
/* found match! */
|
|
|
|
/* Indicate the received Action frame to user space */
|
|
if (nl80211_send_mgmt(rdev, wdev, reg->nlportid,
|
|
freq, sig_mbm,
|
|
buf, len, gfp))
|
|
continue;
|
|
|
|
result = true;
|
|
break;
|
|
}
|
|
|
|
spin_unlock_bh(&wdev->mgmt_registrations_lock);
|
|
|
|
trace_cfg80211_return_bool(result);
|
|
return result;
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_mgmt);
|
|
|
|
void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
|
|
const u8 *buf, size_t len, bool ack, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
|
|
|
|
/* Indicate TX status of the Action frame to user space */
|
|
nl80211_send_mgmt_tx_status(rdev, wdev, cookie, buf, len, ack, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
|
|
|
|
void cfg80211_cqm_rssi_notify(struct net_device *dev,
|
|
enum nl80211_cqm_rssi_threshold_event rssi_event,
|
|
gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
|
|
|
|
/* Indicate roaming trigger event to user space */
|
|
nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
|
|
|
|
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
|
|
const u8 *peer, u32 num_packets, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
|
|
|
|
/* Indicate roaming trigger event to user space */
|
|
nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
|
|
|
|
void cfg80211_cqm_txe_notify(struct net_device *dev,
|
|
const u8 *peer, u32 num_packets,
|
|
u32 rate, u32 intvl, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
nl80211_send_cqm_txe_notify(rdev, dev, peer, num_packets,
|
|
rate, intvl, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
|
|
|
|
void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
|
|
const u8 *replay_ctr, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_gtk_rekey_notify(dev, bssid);
|
|
nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
|
|
|
|
void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
|
|
const u8 *bssid, bool preauth, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
|
|
nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
|
|
|
|
void cfg80211_dfs_channels_update_work(struct work_struct *work)
|
|
{
|
|
struct delayed_work *delayed_work;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct cfg80211_chan_def chandef;
|
|
struct ieee80211_supported_band *sband;
|
|
struct ieee80211_channel *c;
|
|
struct wiphy *wiphy;
|
|
bool check_again = false;
|
|
unsigned long timeout, next_time = 0;
|
|
int bandid, i;
|
|
|
|
delayed_work = container_of(work, struct delayed_work, work);
|
|
rdev = container_of(delayed_work, struct cfg80211_registered_device,
|
|
dfs_update_channels_wk);
|
|
wiphy = &rdev->wiphy;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
for (bandid = 0; bandid < IEEE80211_NUM_BANDS; bandid++) {
|
|
sband = wiphy->bands[bandid];
|
|
if (!sband)
|
|
continue;
|
|
|
|
for (i = 0; i < sband->n_channels; i++) {
|
|
c = &sband->channels[i];
|
|
|
|
if (c->dfs_state != NL80211_DFS_UNAVAILABLE)
|
|
continue;
|
|
|
|
timeout = c->dfs_state_entered +
|
|
IEEE80211_DFS_MIN_NOP_TIME_MS;
|
|
|
|
if (time_after_eq(jiffies, timeout)) {
|
|
c->dfs_state = NL80211_DFS_USABLE;
|
|
cfg80211_chandef_create(&chandef, c,
|
|
NL80211_CHAN_NO_HT);
|
|
|
|
nl80211_radar_notify(rdev, &chandef,
|
|
NL80211_RADAR_NOP_FINISHED,
|
|
NULL, GFP_ATOMIC);
|
|
continue;
|
|
}
|
|
|
|
if (!check_again)
|
|
next_time = timeout - jiffies;
|
|
else
|
|
next_time = min(next_time, timeout - jiffies);
|
|
check_again = true;
|
|
}
|
|
}
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
/* reschedule if there are other channels waiting to be cleared again */
|
|
if (check_again)
|
|
queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk,
|
|
next_time);
|
|
}
|
|
|
|
|
|
void cfg80211_radar_event(struct wiphy *wiphy,
|
|
struct cfg80211_chan_def *chandef,
|
|
gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
unsigned long timeout;
|
|
|
|
trace_cfg80211_radar_event(wiphy, chandef);
|
|
|
|
/* only set the chandef supplied channel to unavailable, in
|
|
* case the radar is detected on only one of multiple channels
|
|
* spanned by the chandef.
|
|
*/
|
|
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE);
|
|
|
|
timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_NOP_TIME_MS);
|
|
queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk,
|
|
timeout);
|
|
|
|
nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_radar_event);
|
|
|
|
void cfg80211_cac_event(struct net_device *netdev,
|
|
enum nl80211_radar_event event, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = netdev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct cfg80211_chan_def chandef;
|
|
unsigned long timeout;
|
|
|
|
trace_cfg80211_cac_event(netdev, event);
|
|
|
|
if (WARN_ON(!wdev->cac_started))
|
|
return;
|
|
|
|
if (WARN_ON(!wdev->channel))
|
|
return;
|
|
|
|
cfg80211_chandef_create(&chandef, wdev->channel, NL80211_CHAN_NO_HT);
|
|
|
|
switch (event) {
|
|
case NL80211_RADAR_CAC_FINISHED:
|
|
timeout = wdev->cac_start_time +
|
|
msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
|
|
WARN_ON(!time_after_eq(jiffies, timeout));
|
|
cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_AVAILABLE);
|
|
break;
|
|
case NL80211_RADAR_CAC_ABORTED:
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
wdev->cac_started = false;
|
|
|
|
nl80211_radar_notify(rdev, &chandef, event, netdev, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cac_event);
|