mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Lorenzo Bianconi](/assets/img/avatar_default.png)
ETSI standard defines "Offchannel CAC" as: "Off-Channel CAC is performed by a number of non-continuous checks spread over a period in time. This period, which is required to determine the presence of radar signals, is defined as the Off-Channel CAC Time.. Minimum Off-Channel CAC Time 6 minutes and Maximum Off-Channel CAC Time 4 hours..". mac80211 implementation refers to a dedicated hw chain used for continuous radar monitoring. Rename offchannel_* references to background_* in order to avoid confusion with ETSI standard. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/4204cc1d648d76b44557981713231e030a3bd991.1638190762.git.lorenzo@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1115 lines
30 KiB
C
1115 lines
30 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* cfg80211 MLME SAP interface
|
|
*
|
|
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
|
|
* Copyright (c) 2015 Intel Deutschland GmbH
|
|
* Copyright (C) 2019-2020 Intel Corporation
|
|
*/
|
|
|
|
#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_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
|
|
const u8 *buf, size_t len, int uapsd_queues,
|
|
const u8 *req_ies, size_t req_ies_len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
struct cfg80211_connect_resp_params cr;
|
|
const u8 *resp_ie = mgmt->u.assoc_resp.variable;
|
|
size_t resp_ie_len = len - offsetof(struct ieee80211_mgmt,
|
|
u.assoc_resp.variable);
|
|
|
|
if (bss->channel->band == NL80211_BAND_S1GHZ) {
|
|
resp_ie = (u8 *)&mgmt->u.s1g_assoc_resp.variable;
|
|
resp_ie_len = len - offsetof(struct ieee80211_mgmt,
|
|
u.s1g_assoc_resp.variable);
|
|
}
|
|
|
|
memset(&cr, 0, sizeof(cr));
|
|
cr.status = (int)le16_to_cpu(mgmt->u.assoc_resp.status_code);
|
|
cr.bssid = mgmt->bssid;
|
|
cr.bss = bss;
|
|
cr.req_ie = req_ies;
|
|
cr.req_ie_len = req_ies_len;
|
|
cr.resp_ie = resp_ie;
|
|
cr.resp_ie_len = resp_ie_len;
|
|
cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
|
|
|
|
trace_cfg80211_send_rx_assoc(dev, bss);
|
|
|
|
/*
|
|
* 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 (cfg80211_sme_rx_assoc_resp(wdev, cr.status)) {
|
|
cfg80211_unhold_bss(bss_from_pub(bss));
|
|
cfg80211_put_bss(wiphy, bss);
|
|
return;
|
|
}
|
|
|
|
nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL, uapsd_queues,
|
|
req_ies, req_ies_len);
|
|
/* update current_bss etc., consumes the bss reference */
|
|
__cfg80211_connect_result(dev, &cr, cr.status == WLAN_STATUS_SUCCESS);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_assoc_resp);
|
|
|
|
static void cfg80211_process_auth(struct wireless_dev *wdev,
|
|
const u8 *buf, size_t len)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
|
|
nl80211_send_rx_auth(rdev, wdev->netdev, buf, len, GFP_KERNEL);
|
|
cfg80211_sme_rx_auth(wdev, buf, len);
|
|
}
|
|
|
|
static void cfg80211_process_deauth(struct wireless_dev *wdev,
|
|
const u8 *buf, size_t len,
|
|
bool reconnect)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
const u8 *bssid = mgmt->bssid;
|
|
u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
|
|
bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
|
|
|
|
nl80211_send_deauth(rdev, wdev->netdev, buf, len, reconnect, GFP_KERNEL);
|
|
|
|
if (!wdev->current_bss ||
|
|
!ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
|
|
return;
|
|
|
|
__cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
|
|
cfg80211_sme_deauth(wdev);
|
|
}
|
|
|
|
static void cfg80211_process_disassoc(struct wireless_dev *wdev,
|
|
const u8 *buf, size_t len,
|
|
bool reconnect)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
|
|
const u8 *bssid = mgmt->bssid;
|
|
u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
|
|
bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
|
|
|
|
nl80211_send_disassoc(rdev, wdev->netdev, buf, len, reconnect,
|
|
GFP_KERNEL);
|
|
|
|
if (WARN_ON(!wdev->current_bss ||
|
|
!ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
|
|
return;
|
|
|
|
__cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
|
|
cfg80211_sme_disassoc(wdev);
|
|
}
|
|
|
|
void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct ieee80211_mgmt *mgmt = (void *)buf;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
trace_cfg80211_rx_mlme_mgmt(dev, buf, len);
|
|
|
|
if (WARN_ON(len < 2))
|
|
return;
|
|
|
|
if (ieee80211_is_auth(mgmt->frame_control))
|
|
cfg80211_process_auth(wdev, buf, len);
|
|
else if (ieee80211_is_deauth(mgmt->frame_control))
|
|
cfg80211_process_deauth(wdev, buf, len, false);
|
|
else if (ieee80211_is_disassoc(mgmt->frame_control))
|
|
cfg80211_process_disassoc(wdev, buf, len, false);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt);
|
|
|
|
void cfg80211_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_rdev(wiphy);
|
|
|
|
trace_cfg80211_send_auth_timeout(dev, addr);
|
|
|
|
nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
|
|
cfg80211_sme_auth_timeout(wdev);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_auth_timeout);
|
|
|
|
void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_send_assoc_timeout(dev, bss->bssid);
|
|
|
|
nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL);
|
|
cfg80211_sme_assoc_timeout(wdev);
|
|
|
|
cfg80211_unhold_bss(bss_from_pub(bss));
|
|
cfg80211_put_bss(wiphy, bss);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_assoc_timeout);
|
|
|
|
void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
|
|
cfg80211_sme_abandon_assoc(wdev);
|
|
|
|
cfg80211_unhold_bss(bss_from_pub(bss));
|
|
cfg80211_put_bss(wiphy, bss);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_abandon_assoc);
|
|
|
|
void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len,
|
|
bool reconnect)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct ieee80211_mgmt *mgmt = (void *)buf;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
trace_cfg80211_tx_mlme_mgmt(dev, buf, len, reconnect);
|
|
|
|
if (WARN_ON(len < 2))
|
|
return;
|
|
|
|
if (ieee80211_is_deauth(mgmt->frame_control))
|
|
cfg80211_process_deauth(wdev, buf, len, reconnect);
|
|
else
|
|
cfg80211_process_disassoc(wdev, buf, len, reconnect);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt);
|
|
|
|
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_rdev(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 *auth_data, int auth_data_len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_auth_request req = {
|
|
.ie = ie,
|
|
.ie_len = ie_len,
|
|
.auth_data = auth_data,
|
|
.auth_data_len = auth_data_len,
|
|
.auth_type = auth_type,
|
|
.key = key,
|
|
.key_len = key_len,
|
|
.key_idx = key_idx,
|
|
};
|
|
int err;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
|
|
if (!key || !key_len || key_idx < 0 || key_idx > 3)
|
|
return -EINVAL;
|
|
|
|
if (wdev->current_bss &&
|
|
ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
|
|
return -EALREADY;
|
|
|
|
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
|
|
IEEE80211_BSS_TYPE_ESS,
|
|
IEEE80211_PRIVACY_ANY);
|
|
if (!req.bss)
|
|
return -ENOENT;
|
|
|
|
err = rdev_auth(rdev, dev, &req);
|
|
|
|
cfg80211_put_bss(&rdev->wiphy, req.bss);
|
|
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];
|
|
}
|
|
|
|
/* Do a logical vht_capa &= vht_capa_mask. */
|
|
void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
|
|
const struct ieee80211_vht_cap *vht_capa_mask)
|
|
{
|
|
int i;
|
|
u8 *p1, *p2;
|
|
if (!vht_capa_mask) {
|
|
memset(vht_capa, 0, sizeof(*vht_capa));
|
|
return;
|
|
}
|
|
|
|
p1 = (u8*)(vht_capa);
|
|
p2 = (u8*)(vht_capa_mask);
|
|
for (i = 0; i < sizeof(*vht_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 *ssid, int ssid_len,
|
|
struct cfg80211_assoc_request *req)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (wdev->current_bss &&
|
|
(!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid,
|
|
req->prev_bssid)))
|
|
return -EALREADY;
|
|
|
|
cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
|
|
rdev->wiphy.ht_capa_mod_mask);
|
|
cfg80211_oper_and_vht_capa(&req->vht_capa_mask,
|
|
rdev->wiphy.vht_capa_mod_mask);
|
|
|
|
req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
|
|
IEEE80211_BSS_TYPE_ESS,
|
|
IEEE80211_PRIVACY_ANY);
|
|
if (!req->bss)
|
|
return -ENOENT;
|
|
|
|
err = rdev_assoc(rdev, dev, req);
|
|
if (!err)
|
|
cfg80211_hold_bss(bss_from_pub(req->bss));
|
|
else
|
|
cfg80211_put_bss(&rdev->wiphy, req->bss);
|
|
|
|
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;
|
|
|
|
if (ether_addr_equal(wdev->disconnect_bssid, bssid) ||
|
|
(wdev->current_bss &&
|
|
ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
|
|
wdev->conn_owner_nlportid = 0;
|
|
|
|
return rdev_deauth(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;
|
|
struct cfg80211_disassoc_request req = {
|
|
.reason_code = reason,
|
|
.local_state_change = local_state_change,
|
|
.ie = ie,
|
|
.ie_len = ie_len,
|
|
};
|
|
int err;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (!wdev->current_bss)
|
|
return -ENOTCONN;
|
|
|
|
if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
|
|
req.bss = &wdev->current_bss->pub;
|
|
else
|
|
return -ENOTCONN;
|
|
|
|
err = rdev_disassoc(rdev, dev, &req);
|
|
if (err)
|
|
return err;
|
|
|
|
/* driver should have reported the disassoc */
|
|
WARN_ON(wdev->current_bss);
|
|
return 0;
|
|
}
|
|
|
|
void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
u8 bssid[ETH_ALEN];
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (!rdev->ops->deauth)
|
|
return;
|
|
|
|
if (!wdev->current_bss)
|
|
return;
|
|
|
|
memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
|
|
cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
|
|
WLAN_REASON_DEAUTH_LEAVING, false);
|
|
}
|
|
|
|
struct cfg80211_mgmt_registration {
|
|
struct list_head list;
|
|
struct wireless_dev *wdev;
|
|
|
|
u32 nlportid;
|
|
|
|
int match_len;
|
|
|
|
__le16 frame_type;
|
|
|
|
bool multicast_rx;
|
|
|
|
u8 match[];
|
|
};
|
|
|
|
static void cfg80211_mgmt_registrations_update(struct wireless_dev *wdev)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct wireless_dev *tmp;
|
|
struct cfg80211_mgmt_registration *reg;
|
|
struct mgmt_frame_regs upd = {};
|
|
|
|
lockdep_assert_held(&rdev->wiphy.mtx);
|
|
|
|
spin_lock_bh(&rdev->mgmt_registrations_lock);
|
|
if (!wdev->mgmt_registrations_need_update) {
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
return;
|
|
}
|
|
|
|
rcu_read_lock();
|
|
list_for_each_entry_rcu(tmp, &rdev->wiphy.wdev_list, list) {
|
|
list_for_each_entry(reg, &tmp->mgmt_registrations, list) {
|
|
u32 mask = BIT(le16_to_cpu(reg->frame_type) >> 4);
|
|
u32 mcast_mask = 0;
|
|
|
|
if (reg->multicast_rx)
|
|
mcast_mask = mask;
|
|
|
|
upd.global_stypes |= mask;
|
|
upd.global_mcast_stypes |= mcast_mask;
|
|
|
|
if (tmp == wdev) {
|
|
upd.interface_stypes |= mask;
|
|
upd.interface_mcast_stypes |= mcast_mask;
|
|
}
|
|
}
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
wdev->mgmt_registrations_need_update = 0;
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
rdev_update_mgmt_frame_registrations(rdev, wdev, &upd);
|
|
}
|
|
|
|
void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
|
|
rdev = container_of(wk, struct cfg80211_registered_device,
|
|
mgmt_registrations_update_wk);
|
|
|
|
wiphy_lock(&rdev->wiphy);
|
|
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list)
|
|
cfg80211_mgmt_registrations_update(wdev);
|
|
wiphy_unlock(&rdev->wiphy);
|
|
}
|
|
|
|
int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
|
|
u16 frame_type, const u8 *match_data,
|
|
int match_len, bool multicast_rx,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct cfg80211_mgmt_registration *reg, *nreg;
|
|
int err = 0;
|
|
u16 mgmt_type;
|
|
bool update_multicast = false;
|
|
|
|
if (!wdev->wiphy->mgmt_stypes)
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) {
|
|
NL_SET_ERR_MSG(extack, "frame type not management");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) {
|
|
NL_SET_ERR_MSG(extack, "Invalid frame type");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
|
|
if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) {
|
|
NL_SET_ERR_MSG(extack,
|
|
"Registration to specific type not supported");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* To support Pre Association Security Negotiation (PASN), registration
|
|
* for authentication frames should be supported. However, as some
|
|
* versions of the user space daemons wrongly register to all types of
|
|
* authentication frames (which might result in unexpected behavior)
|
|
* allow such registration if the request is for a specific
|
|
* authentication algorithm number.
|
|
*/
|
|
if (wdev->iftype == NL80211_IFTYPE_STATION &&
|
|
(frame_type & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_AUTH &&
|
|
!(match_data && match_len >= 2)) {
|
|
NL_SET_ERR_MSG(extack,
|
|
"Authentication algorithm number required");
|
|
return -EINVAL;
|
|
}
|
|
|
|
nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL);
|
|
if (!nreg)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_bh(&rdev->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) {
|
|
if (reg->multicast_rx != multicast_rx) {
|
|
update_multicast = true;
|
|
reg->multicast_rx = multicast_rx;
|
|
break;
|
|
}
|
|
NL_SET_ERR_MSG(extack, "Match already configured");
|
|
err = -EALREADY;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
if (update_multicast) {
|
|
kfree(nreg);
|
|
} else {
|
|
memcpy(nreg->match, match_data, match_len);
|
|
nreg->match_len = match_len;
|
|
nreg->nlportid = snd_portid;
|
|
nreg->frame_type = cpu_to_le16(frame_type);
|
|
nreg->wdev = wdev;
|
|
nreg->multicast_rx = multicast_rx;
|
|
list_add(&nreg->list, &wdev->mgmt_registrations);
|
|
}
|
|
wdev->mgmt_registrations_need_update = 1;
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
cfg80211_mgmt_registrations_update(wdev);
|
|
|
|
return 0;
|
|
|
|
out:
|
|
kfree(nreg);
|
|
spin_unlock_bh(&rdev->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_rdev(wiphy);
|
|
struct cfg80211_mgmt_registration *reg, *tmp;
|
|
|
|
spin_lock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
|
|
if (reg->nlportid != nlportid)
|
|
continue;
|
|
|
|
list_del(®->list);
|
|
kfree(reg);
|
|
|
|
wdev->mgmt_registrations_need_update = 1;
|
|
schedule_work(&rdev->mgmt_registrations_update_wk);
|
|
}
|
|
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
if (nlportid && rdev->crit_proto_nlportid == nlportid) {
|
|
rdev->crit_proto_nlportid = 0;
|
|
rdev_crit_proto_stop(rdev, wdev);
|
|
}
|
|
|
|
if (nlportid == wdev->ap_unexpected_nlportid)
|
|
wdev->ap_unexpected_nlportid = 0;
|
|
}
|
|
|
|
void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct cfg80211_mgmt_registration *reg, *tmp;
|
|
|
|
spin_lock_bh(&rdev->mgmt_registrations_lock);
|
|
list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
|
|
list_del(®->list);
|
|
kfree(reg);
|
|
}
|
|
wdev->mgmt_registrations_need_update = 1;
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
cfg80211_mgmt_registrations_update(wdev);
|
|
}
|
|
|
|
int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
|
|
{
|
|
const struct ieee80211_mgmt *mgmt;
|
|
u16 stype;
|
|
|
|
if (!wdev->wiphy->mgmt_stypes)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->mgmt_tx)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (params->len < 24 + 1)
|
|
return -EINVAL;
|
|
|
|
mgmt = (const struct ieee80211_mgmt *)params->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
|
|
*/
|
|
case NL80211_IFTYPE_NAN:
|
|
default:
|
|
err = -EOPNOTSUPP;
|
|
break;
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!ether_addr_equal(mgmt->sa, wdev_address(wdev))) {
|
|
/* Allow random TA to be used with Public Action frames if the
|
|
* driver has indicated support for this. Otherwise, only allow
|
|
* the local address to be used.
|
|
*/
|
|
if (!ieee80211_is_action(mgmt->frame_control) ||
|
|
mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
|
|
return -EINVAL;
|
|
if (!wdev->current_bss &&
|
|
!wiphy_ext_feature_isset(
|
|
&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA))
|
|
return -EINVAL;
|
|
if (wdev->current_bss &&
|
|
!wiphy_ext_feature_isset(
|
|
&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED))
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Transmit the Action frame as requested by user space */
|
|
return rdev_mgmt_tx(rdev, wdev, params, cookie);
|
|
}
|
|
|
|
bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, int sig_dbm,
|
|
const u8 *buf, size_t len, u32 flags)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(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_dbm);
|
|
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(&rdev->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_dbm,
|
|
buf, len, flags, GFP_ATOMIC))
|
|
continue;
|
|
|
|
result = true;
|
|
break;
|
|
}
|
|
|
|
spin_unlock_bh(&rdev->mgmt_registrations_lock);
|
|
|
|
trace_cfg80211_return_bool(result);
|
|
return result;
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_mgmt_khz);
|
|
|
|
void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev)
|
|
{
|
|
cancel_delayed_work(&rdev->dfs_update_channels_wk);
|
|
queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, 0);
|
|
}
|
|
|
|
void cfg80211_dfs_channels_update_work(struct work_struct *work)
|
|
{
|
|
struct delayed_work *delayed_work = to_delayed_work(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;
|
|
unsigned long time_dfs_update;
|
|
enum nl80211_radar_event radar_event;
|
|
int bandid, i;
|
|
|
|
rdev = container_of(delayed_work, struct cfg80211_registered_device,
|
|
dfs_update_channels_wk);
|
|
wiphy = &rdev->wiphy;
|
|
|
|
rtnl_lock();
|
|
for (bandid = 0; bandid < NUM_NL80211_BANDS; bandid++) {
|
|
sband = wiphy->bands[bandid];
|
|
if (!sband)
|
|
continue;
|
|
|
|
for (i = 0; i < sband->n_channels; i++) {
|
|
c = &sband->channels[i];
|
|
|
|
if (!(c->flags & IEEE80211_CHAN_RADAR))
|
|
continue;
|
|
|
|
if (c->dfs_state != NL80211_DFS_UNAVAILABLE &&
|
|
c->dfs_state != NL80211_DFS_AVAILABLE)
|
|
continue;
|
|
|
|
if (c->dfs_state == NL80211_DFS_UNAVAILABLE) {
|
|
time_dfs_update = IEEE80211_DFS_MIN_NOP_TIME_MS;
|
|
radar_event = NL80211_RADAR_NOP_FINISHED;
|
|
} else {
|
|
if (regulatory_pre_cac_allowed(wiphy) ||
|
|
cfg80211_any_wiphy_oper_chan(wiphy, c))
|
|
continue;
|
|
|
|
time_dfs_update = REG_PRE_CAC_EXPIRY_GRACE_MS;
|
|
radar_event = NL80211_RADAR_PRE_CAC_EXPIRED;
|
|
}
|
|
|
|
timeout = c->dfs_state_entered +
|
|
msecs_to_jiffies(time_dfs_update);
|
|
|
|
if (time_after_eq(jiffies, timeout)) {
|
|
c->dfs_state = NL80211_DFS_USABLE;
|
|
c->dfs_state_entered = jiffies;
|
|
|
|
cfg80211_chandef_create(&chandef, c,
|
|
NL80211_CHAN_NO_HT);
|
|
|
|
nl80211_radar_notify(rdev, &chandef,
|
|
radar_event, NULL,
|
|
GFP_ATOMIC);
|
|
|
|
regulatory_propagate_dfs_state(wiphy, &chandef,
|
|
c->dfs_state,
|
|
radar_event);
|
|
continue;
|
|
}
|
|
|
|
if (!check_again)
|
|
next_time = timeout - jiffies;
|
|
else
|
|
next_time = min(next_time, timeout - jiffies);
|
|
check_again = true;
|
|
}
|
|
}
|
|
rtnl_unlock();
|
|
|
|
/* 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,
|
|
bool offchan, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_radar_event(wiphy, chandef, offchan);
|
|
|
|
/* 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);
|
|
|
|
if (offchan)
|
|
queue_work(cfg80211_wq, &rdev->background_cac_abort_wk);
|
|
|
|
cfg80211_sched_dfs_chan_update(rdev);
|
|
|
|
nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp);
|
|
|
|
memcpy(&rdev->radar_chandef, chandef, sizeof(struct cfg80211_chan_def));
|
|
queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk);
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_radar_event);
|
|
|
|
void cfg80211_cac_event(struct net_device *netdev,
|
|
const struct cfg80211_chan_def *chandef,
|
|
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_rdev(wiphy);
|
|
unsigned long timeout;
|
|
|
|
trace_cfg80211_cac_event(netdev, event);
|
|
|
|
if (WARN_ON(!wdev->cac_started && event != NL80211_RADAR_CAC_STARTED))
|
|
return;
|
|
|
|
if (WARN_ON(!wdev->chandef.chan))
|
|
return;
|
|
|
|
switch (event) {
|
|
case NL80211_RADAR_CAC_FINISHED:
|
|
timeout = wdev->cac_start_time +
|
|
msecs_to_jiffies(wdev->cac_time_ms);
|
|
WARN_ON(!time_after_eq(jiffies, timeout));
|
|
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
|
|
memcpy(&rdev->cac_done_chandef, chandef,
|
|
sizeof(struct cfg80211_chan_def));
|
|
queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk);
|
|
cfg80211_sched_dfs_chan_update(rdev);
|
|
fallthrough;
|
|
case NL80211_RADAR_CAC_ABORTED:
|
|
wdev->cac_started = false;
|
|
break;
|
|
case NL80211_RADAR_CAC_STARTED:
|
|
wdev->cac_started = true;
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
|
|
nl80211_radar_notify(rdev, chandef, event, netdev, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cac_event);
|
|
|
|
static void
|
|
__cfg80211_background_cac_event(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum nl80211_radar_event event)
|
|
{
|
|
struct wiphy *wiphy = &rdev->wiphy;
|
|
struct net_device *netdev;
|
|
|
|
lockdep_assert_wiphy(&rdev->wiphy);
|
|
|
|
if (!cfg80211_chandef_valid(chandef))
|
|
return;
|
|
|
|
if (!rdev->background_radar_wdev)
|
|
return;
|
|
|
|
switch (event) {
|
|
case NL80211_RADAR_CAC_FINISHED:
|
|
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
|
|
memcpy(&rdev->cac_done_chandef, chandef, sizeof(*chandef));
|
|
queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk);
|
|
cfg80211_sched_dfs_chan_update(rdev);
|
|
wdev = rdev->background_radar_wdev;
|
|
break;
|
|
case NL80211_RADAR_CAC_ABORTED:
|
|
if (!cancel_delayed_work(&rdev->background_cac_done_wk))
|
|
return;
|
|
wdev = rdev->background_radar_wdev;
|
|
break;
|
|
case NL80211_RADAR_CAC_STARTED:
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
netdev = wdev ? wdev->netdev : NULL;
|
|
nl80211_radar_notify(rdev, chandef, event, netdev, GFP_KERNEL);
|
|
}
|
|
|
|
static void
|
|
cfg80211_background_cac_event(struct cfg80211_registered_device *rdev,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum nl80211_radar_event event)
|
|
{
|
|
wiphy_lock(&rdev->wiphy);
|
|
__cfg80211_background_cac_event(rdev, rdev->background_radar_wdev,
|
|
chandef, event);
|
|
wiphy_unlock(&rdev->wiphy);
|
|
}
|
|
|
|
void cfg80211_background_cac_done_wk(struct work_struct *work)
|
|
{
|
|
struct delayed_work *delayed_work = to_delayed_work(work);
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
rdev = container_of(delayed_work, struct cfg80211_registered_device,
|
|
background_cac_done_wk);
|
|
cfg80211_background_cac_event(rdev, &rdev->background_radar_chandef,
|
|
NL80211_RADAR_CAC_FINISHED);
|
|
}
|
|
|
|
void cfg80211_background_cac_abort_wk(struct work_struct *work)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
rdev = container_of(work, struct cfg80211_registered_device,
|
|
background_cac_abort_wk);
|
|
cfg80211_background_cac_event(rdev, &rdev->background_radar_chandef,
|
|
NL80211_RADAR_CAC_ABORTED);
|
|
}
|
|
|
|
void cfg80211_background_cac_abort(struct wiphy *wiphy)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
queue_work(cfg80211_wq, &rdev->background_cac_abort_wk);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_background_cac_abort);
|
|
|
|
int
|
|
cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
struct cfg80211_chan_def *chandef)
|
|
{
|
|
unsigned int cac_time_ms;
|
|
int err;
|
|
|
|
lockdep_assert_wiphy(&rdev->wiphy);
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_RADAR_BACKGROUND))
|
|
return -EOPNOTSUPP;
|
|
|
|
/* Offchannel chain already locked by another wdev */
|
|
if (rdev->background_radar_wdev && rdev->background_radar_wdev != wdev)
|
|
return -EBUSY;
|
|
|
|
/* CAC already in progress on the offchannel chain */
|
|
if (rdev->background_radar_wdev == wdev &&
|
|
delayed_work_pending(&rdev->background_cac_done_wk))
|
|
return -EBUSY;
|
|
|
|
err = rdev_set_radar_background(rdev, chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, chandef);
|
|
if (!cac_time_ms)
|
|
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
|
|
|
|
rdev->background_radar_chandef = *chandef;
|
|
rdev->background_radar_wdev = wdev; /* Get offchain ownership */
|
|
|
|
__cfg80211_background_cac_event(rdev, wdev, chandef,
|
|
NL80211_RADAR_CAC_STARTED);
|
|
queue_delayed_work(cfg80211_wq, &rdev->background_cac_done_wk,
|
|
msecs_to_jiffies(cac_time_ms));
|
|
|
|
return 0;
|
|
}
|
|
|
|
void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
lockdep_assert_wiphy(wiphy);
|
|
|
|
if (wdev != rdev->background_radar_wdev)
|
|
return;
|
|
|
|
rdev_set_radar_background(rdev, NULL);
|
|
rdev->background_radar_wdev = NULL; /* Release offchain ownership */
|
|
|
|
__cfg80211_background_cac_event(rdev, wdev,
|
|
&rdev->background_radar_chandef,
|
|
NL80211_RADAR_CAC_ABORTED);
|
|
}
|