Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
6039f6d2 JM |
2 | /* |
3 | * cfg80211 MLME SAP interface | |
4 | * | |
5 | * Copyright (c) 2009, Jouni Malinen <j@w1.fi> | |
33d8783c | 6 | * Copyright (c) 2015 Intel Deutschland GmbH |
6039f6d2 JM |
7 | */ |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/module.h> | |
c6fb08aa | 11 | #include <linux/etherdevice.h> |
6039f6d2 JM |
12 | #include <linux/netdevice.h> |
13 | #include <linux/nl80211.h> | |
5a0e3ad6 | 14 | #include <linux/slab.h> |
a9a11622 | 15 | #include <linux/wireless.h> |
6039f6d2 | 16 | #include <net/cfg80211.h> |
a9a11622 | 17 | #include <net/iw_handler.h> |
6039f6d2 JM |
18 | #include "core.h" |
19 | #include "nl80211.h" | |
e35e4d28 HG |
20 | #include "rdev-ops.h" |
21 | ||
6039f6d2 | 22 | |
6ff57cf8 | 23 | void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss, |
4d9ec73d JM |
24 | const u8 *buf, size_t len, int uapsd_queues, |
25 | const u8 *req_ies, size_t req_ies_len) | |
6039f6d2 | 26 | { |
6829c878 JB |
27 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
28 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 29 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 | 30 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
5349a0f7 VK |
31 | struct cfg80211_connect_resp_params cr; |
32 | ||
33 | memset(&cr, 0, sizeof(cr)); | |
34 | cr.status = (int)le16_to_cpu(mgmt->u.assoc_resp.status_code); | |
35 | cr.bssid = mgmt->bssid; | |
36 | cr.bss = bss; | |
4d9ec73d JM |
37 | cr.req_ie = req_ies; |
38 | cr.req_ie_len = req_ies_len; | |
5349a0f7 VK |
39 | cr.resp_ie = mgmt->u.assoc_resp.variable; |
40 | cr.resp_ie_len = | |
41 | len - offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); | |
42 | cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED; | |
6829c878 | 43 | |
4ee3e063 | 44 | trace_cfg80211_send_rx_assoc(dev, bss); |
cb0b4beb | 45 | |
f401a6f7 JB |
46 | /* |
47 | * This is a bit of a hack, we don't notify userspace of | |
48 | * a (re-)association reply if we tried to send a reassoc | |
49 | * and got a reject -- we only try again with an assoc | |
50 | * frame instead of reassoc. | |
51 | */ | |
5349a0f7 | 52 | if (cfg80211_sme_rx_assoc_resp(wdev, cr.status)) { |
f1940c57 | 53 | cfg80211_unhold_bss(bss_from_pub(bss)); |
5b112d3d | 54 | cfg80211_put_bss(wiphy, bss); |
8d61ffa5 | 55 | return; |
95de817b | 56 | } |
f401a6f7 | 57 | |
4d9ec73d JM |
58 | nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL, uapsd_queues, |
59 | req_ies, req_ies_len); | |
ceca7b71 | 60 | /* update current_bss etc., consumes the bss reference */ |
5349a0f7 | 61 | __cfg80211_connect_result(dev, &cr, cr.status == WLAN_STATUS_SUCCESS); |
6039f6d2 | 62 | } |
6ff57cf8 | 63 | EXPORT_SYMBOL(cfg80211_rx_assoc_resp); |
6039f6d2 | 64 | |
ceca7b71 JB |
65 | static void cfg80211_process_auth(struct wireless_dev *wdev, |
66 | const u8 *buf, size_t len) | |
67 | { | |
f26cbf40 | 68 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
69 | |
70 | nl80211_send_rx_auth(rdev, wdev->netdev, buf, len, GFP_KERNEL); | |
71 | cfg80211_sme_rx_auth(wdev, buf, len); | |
72 | } | |
73 | ||
74 | static void cfg80211_process_deauth(struct wireless_dev *wdev, | |
6ff57cf8 | 75 | const u8 *buf, size_t len) |
6039f6d2 | 76 | { |
f26cbf40 | 77 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 78 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 | 79 | const u8 *bssid = mgmt->bssid; |
ceca7b71 JB |
80 | u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
81 | bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | |
6829c878 | 82 | |
ceca7b71 | 83 | nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL); |
19957bb3 | 84 | |
ceca7b71 JB |
85 | if (!wdev->current_bss || |
86 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) | |
87 | return; | |
6829c878 | 88 | |
ceca7b71 JB |
89 | __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap); |
90 | cfg80211_sme_deauth(wdev); | |
667503dd | 91 | } |
6039f6d2 | 92 | |
ceca7b71 | 93 | static void cfg80211_process_disassoc(struct wireless_dev *wdev, |
6ff57cf8 | 94 | const u8 *buf, size_t len) |
6039f6d2 | 95 | { |
f26cbf40 | 96 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 97 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 | 98 | const u8 *bssid = mgmt->bssid; |
ceca7b71 JB |
99 | u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); |
100 | bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | |
6829c878 | 101 | |
ceca7b71 | 102 | nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL); |
a3b8b056 | 103 | |
ceca7b71 JB |
104 | if (WARN_ON(!wdev->current_bss || |
105 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
596a07c1 | 106 | return; |
6829c878 | 107 | |
ceca7b71 JB |
108 | __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap); |
109 | cfg80211_sme_disassoc(wdev); | |
667503dd | 110 | } |
1965c853 | 111 | |
6ff57cf8 JB |
112 | void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) |
113 | { | |
114 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6ff57cf8 JB |
115 | struct ieee80211_mgmt *mgmt = (void *)buf; |
116 | ||
117 | ASSERT_WDEV_LOCK(wdev); | |
118 | ||
119 | trace_cfg80211_rx_mlme_mgmt(dev, buf, len); | |
120 | ||
121 | if (WARN_ON(len < 2)) | |
122 | return; | |
123 | ||
ceca7b71 JB |
124 | if (ieee80211_is_auth(mgmt->frame_control)) |
125 | cfg80211_process_auth(wdev, buf, len); | |
126 | else if (ieee80211_is_deauth(mgmt->frame_control)) | |
127 | cfg80211_process_deauth(wdev, buf, len); | |
128 | else if (ieee80211_is_disassoc(mgmt->frame_control)) | |
129 | cfg80211_process_disassoc(wdev, buf, len); | |
6ff57cf8 JB |
130 | } |
131 | EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt); | |
132 | ||
133 | void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr) | |
a58ce43f JB |
134 | { |
135 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
136 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 137 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
a58ce43f | 138 | |
4ee3e063 | 139 | trace_cfg80211_send_auth_timeout(dev, addr); |
a58ce43f JB |
140 | |
141 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); | |
ceca7b71 | 142 | cfg80211_sme_auth_timeout(wdev); |
1965c853 | 143 | } |
6ff57cf8 | 144 | EXPORT_SYMBOL(cfg80211_auth_timeout); |
1965c853 | 145 | |
959867fa | 146 | void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss) |
1965c853 | 147 | { |
6829c878 JB |
148 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
149 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 150 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
19957bb3 | 151 | |
959867fa | 152 | trace_cfg80211_send_assoc_timeout(dev, bss->bssid); |
cb0b4beb | 153 | |
959867fa | 154 | nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL); |
ceca7b71 | 155 | cfg80211_sme_assoc_timeout(wdev); |
959867fa | 156 | |
f1940c57 | 157 | cfg80211_unhold_bss(bss_from_pub(bss)); |
959867fa | 158 | cfg80211_put_bss(wiphy, bss); |
1965c853 | 159 | } |
6ff57cf8 JB |
160 | EXPORT_SYMBOL(cfg80211_assoc_timeout); |
161 | ||
e6f462df JB |
162 | void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss) |
163 | { | |
164 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
165 | struct wiphy *wiphy = wdev->wiphy; | |
166 | ||
167 | cfg80211_sme_abandon_assoc(wdev); | |
168 | ||
169 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
170 | cfg80211_put_bss(wiphy, bss); | |
171 | } | |
172 | EXPORT_SYMBOL(cfg80211_abandon_assoc); | |
173 | ||
6ff57cf8 JB |
174 | void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) |
175 | { | |
176 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
177 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
178 | ||
179 | ASSERT_WDEV_LOCK(wdev); | |
180 | ||
181 | trace_cfg80211_tx_mlme_mgmt(dev, buf, len); | |
182 | ||
183 | if (WARN_ON(len < 2)) | |
184 | return; | |
185 | ||
186 | if (ieee80211_is_deauth(mgmt->frame_control)) | |
ceca7b71 | 187 | cfg80211_process_deauth(wdev, buf, len); |
6ff57cf8 | 188 | else |
ceca7b71 | 189 | cfg80211_process_disassoc(wdev, buf, len); |
6ff57cf8 JB |
190 | } |
191 | EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt); | |
1965c853 | 192 | |
a3b8b056 JM |
193 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
194 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 195 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
196 | { |
197 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
f26cbf40 | 198 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
3d23e349 | 199 | #ifdef CONFIG_CFG80211_WEXT |
f58d4ed9 | 200 | union iwreq_data wrqu; |
e6d6e342 | 201 | char *buf = kmalloc(128, gfp); |
f58d4ed9 JB |
202 | |
203 | if (buf) { | |
204 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" | |
205 | "keyid=%d %scast addr=%pM)", key_id, | |
206 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", | |
207 | addr); | |
208 | memset(&wrqu, 0, sizeof(wrqu)); | |
209 | wrqu.data.length = strlen(buf); | |
210 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); | |
211 | kfree(buf); | |
212 | } | |
213 | #endif | |
214 | ||
4ee3e063 | 215 | trace_cfg80211_michael_mic_failure(dev, addr, key_type, key_id, tsc); |
e6d6e342 | 216 | nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp); |
a3b8b056 JM |
217 | } |
218 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); | |
19957bb3 JB |
219 | |
220 | /* some MLME handling for userspace SME */ | |
91bf9b26 JB |
221 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
222 | struct net_device *dev, | |
223 | struct ieee80211_channel *chan, | |
224 | enum nl80211_auth_type auth_type, | |
225 | const u8 *bssid, | |
226 | const u8 *ssid, int ssid_len, | |
227 | const u8 *ie, int ie_len, | |
228 | const u8 *key, int key_len, int key_idx, | |
11b6b5a4 | 229 | const u8 *auth_data, int auth_data_len) |
19957bb3 JB |
230 | { |
231 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7ade7036 JB |
232 | struct cfg80211_auth_request req = { |
233 | .ie = ie, | |
234 | .ie_len = ie_len, | |
11b6b5a4 JM |
235 | .auth_data = auth_data, |
236 | .auth_data_len = auth_data_len, | |
7ade7036 JB |
237 | .auth_type = auth_type, |
238 | .key = key, | |
239 | .key_len = key_len, | |
240 | .key_idx = key_idx, | |
241 | }; | |
95de817b | 242 | int err; |
19957bb3 | 243 | |
667503dd JB |
244 | ASSERT_WDEV_LOCK(wdev); |
245 | ||
fffd0934 | 246 | if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
b6b5555b | 247 | if (!key || !key_len || key_idx < 0 || key_idx > 3) |
fffd0934 JB |
248 | return -EINVAL; |
249 | ||
0a9b5e17 | 250 | if (wdev->current_bss && |
ac422d3c | 251 | ether_addr_equal(bssid, wdev->current_bss->pub.bssid)) |
0a9b5e17 JB |
252 | return -EALREADY; |
253 | ||
19957bb3 | 254 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
6eb18137 DL |
255 | IEEE80211_BSS_TYPE_ESS, |
256 | IEEE80211_PRIVACY_ANY); | |
19957bb3 JB |
257 | if (!req.bss) |
258 | return -ENOENT; | |
259 | ||
e35e4d28 | 260 | err = rdev_auth(rdev, dev, &req); |
19957bb3 | 261 | |
5b112d3d | 262 | cfg80211_put_bss(&rdev->wiphy, req.bss); |
19957bb3 JB |
263 | return err; |
264 | } | |
265 | ||
7e7c8926 BG |
266 | /* Do a logical ht_capa &= ht_capa_mask. */ |
267 | void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, | |
268 | const struct ieee80211_ht_cap *ht_capa_mask) | |
269 | { | |
270 | int i; | |
271 | u8 *p1, *p2; | |
272 | if (!ht_capa_mask) { | |
273 | memset(ht_capa, 0, sizeof(*ht_capa)); | |
274 | return; | |
275 | } | |
276 | ||
277 | p1 = (u8*)(ht_capa); | |
278 | p2 = (u8*)(ht_capa_mask); | |
81c5dce2 | 279 | for (i = 0; i < sizeof(*ht_capa); i++) |
7e7c8926 BG |
280 | p1[i] &= p2[i]; |
281 | } | |
282 | ||
81c5dce2 | 283 | /* Do a logical vht_capa &= vht_capa_mask. */ |
ee2aca34 JB |
284 | void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa, |
285 | const struct ieee80211_vht_cap *vht_capa_mask) | |
286 | { | |
287 | int i; | |
288 | u8 *p1, *p2; | |
289 | if (!vht_capa_mask) { | |
290 | memset(vht_capa, 0, sizeof(*vht_capa)); | |
291 | return; | |
292 | } | |
293 | ||
294 | p1 = (u8*)(vht_capa); | |
295 | p2 = (u8*)(vht_capa_mask); | |
296 | for (i = 0; i < sizeof(*vht_capa); i++) | |
297 | p1[i] &= p2[i]; | |
298 | } | |
299 | ||
91bf9b26 JB |
300 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
301 | struct net_device *dev, | |
302 | struct ieee80211_channel *chan, | |
303 | const u8 *bssid, | |
304 | const u8 *ssid, int ssid_len, | |
305 | struct cfg80211_assoc_request *req) | |
19957bb3 JB |
306 | { |
307 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b | 308 | int err; |
19957bb3 | 309 | |
667503dd JB |
310 | ASSERT_WDEV_LOCK(wdev); |
311 | ||
ceca7b71 JB |
312 | if (wdev->current_bss && |
313 | (!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid, | |
314 | req->prev_bssid))) | |
19957bb3 JB |
315 | return -EALREADY; |
316 | ||
f62fab73 | 317 | cfg80211_oper_and_ht_capa(&req->ht_capa_mask, |
7e7c8926 | 318 | rdev->wiphy.ht_capa_mod_mask); |
f62fab73 | 319 | cfg80211_oper_and_vht_capa(&req->vht_capa_mask, |
ee2aca34 | 320 | rdev->wiphy.vht_capa_mod_mask); |
7e7c8926 | 321 | |
f62fab73 | 322 | req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
6eb18137 DL |
323 | IEEE80211_BSS_TYPE_ESS, |
324 | IEEE80211_PRIVACY_ANY); | |
ceca7b71 | 325 | if (!req->bss) |
19957bb3 JB |
326 | return -ENOENT; |
327 | ||
f62fab73 | 328 | err = rdev_assoc(rdev, dev, req); |
f1940c57 JB |
329 | if (!err) |
330 | cfg80211_hold_bss(bss_from_pub(req->bss)); | |
73de86a3 | 331 | else |
f62fab73 | 332 | cfg80211_put_bss(&rdev->wiphy, req->bss); |
19957bb3 | 333 | |
19957bb3 JB |
334 | return err; |
335 | } | |
336 | ||
91bf9b26 JB |
337 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
338 | struct net_device *dev, const u8 *bssid, | |
339 | const u8 *ie, int ie_len, u16 reason, | |
340 | bool local_state_change) | |
19957bb3 JB |
341 | { |
342 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b JB |
343 | struct cfg80211_deauth_request req = { |
344 | .bssid = bssid, | |
345 | .reason_code = reason, | |
346 | .ie = ie, | |
347 | .ie_len = ie_len, | |
6863255b | 348 | .local_state_change = local_state_change, |
95de817b | 349 | }; |
19957bb3 | 350 | |
667503dd JB |
351 | ASSERT_WDEV_LOCK(wdev); |
352 | ||
ceca7b71 JB |
353 | if (local_state_change && |
354 | (!wdev->current_bss || | |
355 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
95de817b | 356 | return 0; |
19957bb3 | 357 | |
bd2522b1 AZ |
358 | if (ether_addr_equal(wdev->disconnect_bssid, bssid) || |
359 | (wdev->current_bss && | |
360 | ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
361 | wdev->conn_owner_nlportid = 0; | |
362 | ||
e35e4d28 | 363 | return rdev_deauth(rdev, dev, &req); |
19957bb3 JB |
364 | } |
365 | ||
91bf9b26 JB |
366 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
367 | struct net_device *dev, const u8 *bssid, | |
368 | const u8 *ie, int ie_len, u16 reason, | |
369 | bool local_state_change) | |
19957bb3 JB |
370 | { |
371 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7ade7036 JB |
372 | struct cfg80211_disassoc_request req = { |
373 | .reason_code = reason, | |
374 | .local_state_change = local_state_change, | |
375 | .ie = ie, | |
376 | .ie_len = ie_len, | |
377 | }; | |
ceca7b71 | 378 | int err; |
19957bb3 | 379 | |
667503dd JB |
380 | ASSERT_WDEV_LOCK(wdev); |
381 | ||
ceca7b71 | 382 | if (!wdev->current_bss) |
f9d6b402 JB |
383 | return -ENOTCONN; |
384 | ||
ac422d3c | 385 | if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) |
19957bb3 JB |
386 | req.bss = &wdev->current_bss->pub; |
387 | else | |
388 | return -ENOTCONN; | |
389 | ||
ceca7b71 JB |
390 | err = rdev_disassoc(rdev, dev, &req); |
391 | if (err) | |
392 | return err; | |
393 | ||
394 | /* driver should have reported the disassoc */ | |
395 | WARN_ON(wdev->current_bss); | |
396 | return 0; | |
667503dd JB |
397 | } |
398 | ||
19957bb3 JB |
399 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
400 | struct net_device *dev) | |
401 | { | |
402 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b | 403 | u8 bssid[ETH_ALEN]; |
19957bb3 | 404 | |
667503dd JB |
405 | ASSERT_WDEV_LOCK(wdev); |
406 | ||
19957bb3 JB |
407 | if (!rdev->ops->deauth) |
408 | return; | |
409 | ||
95de817b JB |
410 | if (!wdev->current_bss) |
411 | return; | |
19957bb3 | 412 | |
95de817b | 413 | memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); |
ceca7b71 JB |
414 | cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, |
415 | WLAN_REASON_DEAUTH_LEAVING, false); | |
19957bb3 | 416 | } |
9588bbd5 | 417 | |
2e161f78 | 418 | struct cfg80211_mgmt_registration { |
026331c4 | 419 | struct list_head list; |
33d8783c | 420 | struct wireless_dev *wdev; |
026331c4 | 421 | |
15e47304 | 422 | u32 nlportid; |
026331c4 JM |
423 | |
424 | int match_len; | |
425 | ||
2e161f78 JB |
426 | __le16 frame_type; |
427 | ||
026331c4 JM |
428 | u8 match[]; |
429 | }; | |
430 | ||
33d8783c JB |
431 | static void |
432 | cfg80211_process_mlme_unregistrations(struct cfg80211_registered_device *rdev) | |
433 | { | |
434 | struct cfg80211_mgmt_registration *reg; | |
435 | ||
436 | ASSERT_RTNL(); | |
437 | ||
438 | spin_lock_bh(&rdev->mlme_unreg_lock); | |
439 | while ((reg = list_first_entry_or_null(&rdev->mlme_unreg, | |
440 | struct cfg80211_mgmt_registration, | |
441 | list))) { | |
442 | list_del(®->list); | |
443 | spin_unlock_bh(&rdev->mlme_unreg_lock); | |
444 | ||
445 | if (rdev->ops->mgmt_frame_register) { | |
446 | u16 frame_type = le16_to_cpu(reg->frame_type); | |
447 | ||
448 | rdev_mgmt_frame_register(rdev, reg->wdev, | |
449 | frame_type, false); | |
450 | } | |
451 | ||
452 | kfree(reg); | |
453 | ||
454 | spin_lock_bh(&rdev->mlme_unreg_lock); | |
455 | } | |
456 | spin_unlock_bh(&rdev->mlme_unreg_lock); | |
457 | } | |
458 | ||
459 | void cfg80211_mlme_unreg_wk(struct work_struct *wk) | |
460 | { | |
461 | struct cfg80211_registered_device *rdev; | |
462 | ||
463 | rdev = container_of(wk, struct cfg80211_registered_device, | |
464 | mlme_unreg_wk); | |
465 | ||
466 | rtnl_lock(); | |
467 | cfg80211_process_mlme_unregistrations(rdev); | |
468 | rtnl_unlock(); | |
469 | } | |
470 | ||
15e47304 | 471 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid, |
2e161f78 JB |
472 | u16 frame_type, const u8 *match_data, |
473 | int match_len) | |
026331c4 | 474 | { |
271733cf | 475 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 476 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
2e161f78 | 477 | struct cfg80211_mgmt_registration *reg, *nreg; |
026331c4 | 478 | int err = 0; |
2e161f78 JB |
479 | u16 mgmt_type; |
480 | ||
481 | if (!wdev->wiphy->mgmt_stypes) | |
482 | return -EOPNOTSUPP; | |
483 | ||
484 | if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) | |
485 | return -EINVAL; | |
486 | ||
487 | if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) | |
488 | return -EINVAL; | |
489 | ||
490 | mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; | |
491 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) | |
492 | return -EINVAL; | |
026331c4 JM |
493 | |
494 | nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); | |
495 | if (!nreg) | |
496 | return -ENOMEM; | |
497 | ||
2e161f78 | 498 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 499 | |
2e161f78 | 500 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
026331c4 JM |
501 | int mlen = min(match_len, reg->match_len); |
502 | ||
2e161f78 JB |
503 | if (frame_type != le16_to_cpu(reg->frame_type)) |
504 | continue; | |
505 | ||
026331c4 JM |
506 | if (memcmp(reg->match, match_data, mlen) == 0) { |
507 | err = -EALREADY; | |
508 | break; | |
509 | } | |
510 | } | |
511 | ||
512 | if (err) { | |
513 | kfree(nreg); | |
514 | goto out; | |
515 | } | |
516 | ||
517 | memcpy(nreg->match, match_data, match_len); | |
518 | nreg->match_len = match_len; | |
15e47304 | 519 | nreg->nlportid = snd_portid; |
2e161f78 | 520 | nreg->frame_type = cpu_to_le16(frame_type); |
33d8783c | 521 | nreg->wdev = wdev; |
2e161f78 | 522 | list_add(&nreg->list, &wdev->mgmt_registrations); |
33d8783c JB |
523 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
524 | ||
525 | /* process all unregistrations to avoid driver confusion */ | |
526 | cfg80211_process_mlme_unregistrations(rdev); | |
026331c4 | 527 | |
271733cf | 528 | if (rdev->ops->mgmt_frame_register) |
e35e4d28 | 529 | rdev_mgmt_frame_register(rdev, wdev, frame_type, true); |
271733cf | 530 | |
33d8783c JB |
531 | return 0; |
532 | ||
026331c4 | 533 | out: |
2e161f78 | 534 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
271733cf | 535 | |
026331c4 JM |
536 | return err; |
537 | } | |
538 | ||
15e47304 | 539 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid) |
026331c4 | 540 | { |
271733cf | 541 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 542 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
2e161f78 | 543 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 544 | |
2e161f78 | 545 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 546 | |
2e161f78 | 547 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
15e47304 | 548 | if (reg->nlportid != nlportid) |
271733cf JB |
549 | continue; |
550 | ||
271733cf | 551 | list_del(®->list); |
33d8783c JB |
552 | spin_lock(&rdev->mlme_unreg_lock); |
553 | list_add_tail(®->list, &rdev->mlme_unreg); | |
554 | spin_unlock(&rdev->mlme_unreg_lock); | |
555 | ||
556 | schedule_work(&rdev->mlme_unreg_wk); | |
026331c4 JM |
557 | } |
558 | ||
2e161f78 | 559 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
28946da7 | 560 | |
5de17984 AS |
561 | if (nlportid && rdev->crit_proto_nlportid == nlportid) { |
562 | rdev->crit_proto_nlportid = 0; | |
563 | rdev_crit_proto_stop(rdev, wdev); | |
564 | } | |
565 | ||
15e47304 EB |
566 | if (nlportid == wdev->ap_unexpected_nlportid) |
567 | wdev->ap_unexpected_nlportid = 0; | |
026331c4 JM |
568 | } |
569 | ||
2e161f78 | 570 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) |
026331c4 | 571 | { |
33d8783c | 572 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
026331c4 | 573 | |
2e161f78 | 574 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
33d8783c JB |
575 | spin_lock(&rdev->mlme_unreg_lock); |
576 | list_splice_tail_init(&wdev->mgmt_registrations, &rdev->mlme_unreg); | |
577 | spin_unlock(&rdev->mlme_unreg_lock); | |
2e161f78 | 578 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
33d8783c JB |
579 | |
580 | cfg80211_process_mlme_unregistrations(rdev); | |
026331c4 JM |
581 | } |
582 | ||
2e161f78 | 583 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, |
71bbc994 | 584 | struct wireless_dev *wdev, |
b176e629 | 585 | struct cfg80211_mgmt_tx_params *params, u64 *cookie) |
026331c4 | 586 | { |
026331c4 | 587 | const struct ieee80211_mgmt *mgmt; |
2e161f78 JB |
588 | u16 stype; |
589 | ||
590 | if (!wdev->wiphy->mgmt_stypes) | |
591 | return -EOPNOTSUPP; | |
026331c4 | 592 | |
2e161f78 | 593 | if (!rdev->ops->mgmt_tx) |
026331c4 | 594 | return -EOPNOTSUPP; |
2e161f78 | 595 | |
b176e629 | 596 | if (params->len < 24 + 1) |
026331c4 JM |
597 | return -EINVAL; |
598 | ||
b176e629 | 599 | mgmt = (const struct ieee80211_mgmt *)params->buf; |
2e161f78 JB |
600 | |
601 | if (!ieee80211_is_mgmt(mgmt->frame_control)) | |
026331c4 | 602 | return -EINVAL; |
2e161f78 JB |
603 | |
604 | stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; | |
605 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) | |
606 | return -EINVAL; | |
607 | ||
608 | if (ieee80211_is_action(mgmt->frame_control) && | |
609 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { | |
663fcafd JB |
610 | int err = 0; |
611 | ||
fe100acd JB |
612 | wdev_lock(wdev); |
613 | ||
663fcafd JB |
614 | switch (wdev->iftype) { |
615 | case NL80211_IFTYPE_ADHOC: | |
616 | case NL80211_IFTYPE_STATION: | |
617 | case NL80211_IFTYPE_P2P_CLIENT: | |
618 | if (!wdev->current_bss) { | |
619 | err = -ENOTCONN; | |
620 | break; | |
621 | } | |
622 | ||
ac422d3c JP |
623 | if (!ether_addr_equal(wdev->current_bss->pub.bssid, |
624 | mgmt->bssid)) { | |
663fcafd JB |
625 | err = -ENOTCONN; |
626 | break; | |
627 | } | |
628 | ||
629 | /* | |
630 | * check for IBSS DA must be done by driver as | |
631 | * cfg80211 doesn't track the stations | |
632 | */ | |
633 | if (wdev->iftype == NL80211_IFTYPE_ADHOC) | |
634 | break; | |
fe100acd | 635 | |
663fcafd | 636 | /* for station, check that DA is the AP */ |
ac422d3c JP |
637 | if (!ether_addr_equal(wdev->current_bss->pub.bssid, |
638 | mgmt->da)) { | |
663fcafd JB |
639 | err = -ENOTCONN; |
640 | break; | |
641 | } | |
642 | break; | |
643 | case NL80211_IFTYPE_AP: | |
644 | case NL80211_IFTYPE_P2P_GO: | |
645 | case NL80211_IFTYPE_AP_VLAN: | |
98104fde | 646 | if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev))) |
663fcafd JB |
647 | err = -EINVAL; |
648 | break; | |
0778a6a3 | 649 | case NL80211_IFTYPE_MESH_POINT: |
ac422d3c | 650 | if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) { |
0778a6a3 JC |
651 | err = -EINVAL; |
652 | break; | |
653 | } | |
654 | /* | |
655 | * check for mesh DA must be done by driver as | |
656 | * cfg80211 doesn't track the stations | |
657 | */ | |
658 | break; | |
98104fde JB |
659 | case NL80211_IFTYPE_P2P_DEVICE: |
660 | /* | |
661 | * fall through, P2P device only supports | |
662 | * public action frames | |
663 | */ | |
cb3b7d87 | 664 | case NL80211_IFTYPE_NAN: |
663fcafd JB |
665 | default: |
666 | err = -EOPNOTSUPP; | |
667 | break; | |
668 | } | |
fe100acd | 669 | wdev_unlock(wdev); |
663fcafd JB |
670 | |
671 | if (err) | |
672 | return err; | |
026331c4 JM |
673 | } |
674 | ||
ab5bb2d5 | 675 | if (!ether_addr_equal(mgmt->sa, wdev_address(wdev))) { |
676 | /* Allow random TA to be used with Public Action frames if the | |
677 | * driver has indicated support for this. Otherwise, only allow | |
678 | * the local address to be used. | |
679 | */ | |
680 | if (!ieee80211_is_action(mgmt->frame_control) || | |
681 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) | |
682 | return -EINVAL; | |
683 | if (!wdev->current_bss && | |
684 | !wiphy_ext_feature_isset( | |
685 | &rdev->wiphy, | |
686 | NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA)) | |
687 | return -EINVAL; | |
688 | if (wdev->current_bss && | |
689 | !wiphy_ext_feature_isset( | |
690 | &rdev->wiphy, | |
691 | NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED)) | |
692 | return -EINVAL; | |
693 | } | |
026331c4 JM |
694 | |
695 | /* Transmit the Action frame as requested by user space */ | |
b176e629 | 696 | return rdev_mgmt_tx(rdev, wdev, params, cookie); |
026331c4 JM |
697 | } |
698 | ||
6c2fb1e6 | 699 | bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, |
970fdfa8 | 700 | const u8 *buf, size_t len, u32 flags) |
026331c4 | 701 | { |
026331c4 | 702 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 703 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
2e161f78 JB |
704 | struct cfg80211_mgmt_registration *reg; |
705 | const struct ieee80211_txrx_stypes *stypes = | |
706 | &wiphy->mgmt_stypes[wdev->iftype]; | |
707 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
708 | const u8 *data; | |
709 | int data_len; | |
026331c4 | 710 | bool result = false; |
2e161f78 JB |
711 | __le16 ftype = mgmt->frame_control & |
712 | cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); | |
713 | u16 stype; | |
026331c4 | 714 | |
6c2fb1e6 | 715 | trace_cfg80211_rx_mgmt(wdev, freq, sig_dbm); |
2e161f78 | 716 | stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; |
026331c4 | 717 | |
4ee3e063 BL |
718 | if (!(stypes->rx & BIT(stype))) { |
719 | trace_cfg80211_return_bool(false); | |
2e161f78 | 720 | return false; |
4ee3e063 | 721 | } |
026331c4 | 722 | |
2e161f78 JB |
723 | data = buf + ieee80211_hdrlen(mgmt->frame_control); |
724 | data_len = len - ieee80211_hdrlen(mgmt->frame_control); | |
725 | ||
726 | spin_lock_bh(&wdev->mgmt_registrations_lock); | |
727 | ||
728 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { | |
729 | if (reg->frame_type != ftype) | |
730 | continue; | |
026331c4 | 731 | |
2e161f78 | 732 | if (reg->match_len > data_len) |
026331c4 JM |
733 | continue; |
734 | ||
2e161f78 | 735 | if (memcmp(reg->match, data, reg->match_len)) |
026331c4 JM |
736 | continue; |
737 | ||
738 | /* found match! */ | |
739 | ||
740 | /* Indicate the received Action frame to user space */ | |
15e47304 | 741 | if (nl80211_send_mgmt(rdev, wdev, reg->nlportid, |
6c2fb1e6 | 742 | freq, sig_dbm, |
970fdfa8 | 743 | buf, len, flags, GFP_ATOMIC)) |
026331c4 JM |
744 | continue; |
745 | ||
746 | result = true; | |
747 | break; | |
748 | } | |
749 | ||
2e161f78 | 750 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 751 | |
4ee3e063 | 752 | trace_cfg80211_return_bool(result); |
026331c4 JM |
753 | return result; |
754 | } | |
2e161f78 | 755 | EXPORT_SYMBOL(cfg80211_rx_mgmt); |
026331c4 | 756 | |
b35a51c7 VT |
757 | void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev) |
758 | { | |
759 | cancel_delayed_work(&rdev->dfs_update_channels_wk); | |
760 | queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, 0); | |
761 | } | |
762 | ||
04f39047 SW |
763 | void cfg80211_dfs_channels_update_work(struct work_struct *work) |
764 | { | |
a85a7e28 | 765 | struct delayed_work *delayed_work = to_delayed_work(work); |
04f39047 SW |
766 | struct cfg80211_registered_device *rdev; |
767 | struct cfg80211_chan_def chandef; | |
768 | struct ieee80211_supported_band *sband; | |
769 | struct ieee80211_channel *c; | |
770 | struct wiphy *wiphy; | |
771 | bool check_again = false; | |
772 | unsigned long timeout, next_time = 0; | |
b35a51c7 VT |
773 | unsigned long time_dfs_update; |
774 | enum nl80211_radar_event radar_event; | |
04f39047 SW |
775 | int bandid, i; |
776 | ||
04f39047 SW |
777 | rdev = container_of(delayed_work, struct cfg80211_registered_device, |
778 | dfs_update_channels_wk); | |
779 | wiphy = &rdev->wiphy; | |
780 | ||
5fe231e8 | 781 | rtnl_lock(); |
57fbcce3 | 782 | for (bandid = 0; bandid < NUM_NL80211_BANDS; bandid++) { |
04f39047 SW |
783 | sband = wiphy->bands[bandid]; |
784 | if (!sband) | |
785 | continue; | |
786 | ||
787 | for (i = 0; i < sband->n_channels; i++) { | |
788 | c = &sband->channels[i]; | |
789 | ||
b35a51c7 VT |
790 | if (!(c->flags & IEEE80211_CHAN_RADAR)) |
791 | continue; | |
792 | ||
793 | if (c->dfs_state != NL80211_DFS_UNAVAILABLE && | |
794 | c->dfs_state != NL80211_DFS_AVAILABLE) | |
04f39047 SW |
795 | continue; |
796 | ||
b35a51c7 VT |
797 | if (c->dfs_state == NL80211_DFS_UNAVAILABLE) { |
798 | time_dfs_update = IEEE80211_DFS_MIN_NOP_TIME_MS; | |
799 | radar_event = NL80211_RADAR_NOP_FINISHED; | |
800 | } else { | |
801 | if (regulatory_pre_cac_allowed(wiphy) || | |
802 | cfg80211_any_wiphy_oper_chan(wiphy, c)) | |
803 | continue; | |
804 | ||
805 | time_dfs_update = REG_PRE_CAC_EXPIRY_GRACE_MS; | |
806 | radar_event = NL80211_RADAR_PRE_CAC_EXPIRED; | |
807 | } | |
808 | ||
809 | timeout = c->dfs_state_entered + | |
810 | msecs_to_jiffies(time_dfs_update); | |
04f39047 SW |
811 | |
812 | if (time_after_eq(jiffies, timeout)) { | |
813 | c->dfs_state = NL80211_DFS_USABLE; | |
bbe09bbc MK |
814 | c->dfs_state_entered = jiffies; |
815 | ||
04f39047 SW |
816 | cfg80211_chandef_create(&chandef, c, |
817 | NL80211_CHAN_NO_HT); | |
818 | ||
819 | nl80211_radar_notify(rdev, &chandef, | |
b35a51c7 VT |
820 | radar_event, NULL, |
821 | GFP_ATOMIC); | |
89766727 VT |
822 | |
823 | regulatory_propagate_dfs_state(wiphy, &chandef, | |
824 | c->dfs_state, | |
825 | radar_event); | |
04f39047 SW |
826 | continue; |
827 | } | |
828 | ||
829 | if (!check_again) | |
830 | next_time = timeout - jiffies; | |
831 | else | |
832 | next_time = min(next_time, timeout - jiffies); | |
833 | check_again = true; | |
834 | } | |
835 | } | |
5fe231e8 | 836 | rtnl_unlock(); |
04f39047 SW |
837 | |
838 | /* reschedule if there are other channels waiting to be cleared again */ | |
839 | if (check_again) | |
840 | queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, | |
841 | next_time); | |
842 | } | |
843 | ||
844 | ||
845 | void cfg80211_radar_event(struct wiphy *wiphy, | |
846 | struct cfg80211_chan_def *chandef, | |
847 | gfp_t gfp) | |
848 | { | |
f26cbf40 | 849 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
04f39047 SW |
850 | |
851 | trace_cfg80211_radar_event(wiphy, chandef); | |
852 | ||
853 | /* only set the chandef supplied channel to unavailable, in | |
854 | * case the radar is detected on only one of multiple channels | |
855 | * spanned by the chandef. | |
856 | */ | |
857 | cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE); | |
858 | ||
b35a51c7 | 859 | cfg80211_sched_dfs_chan_update(rdev); |
04f39047 SW |
860 | |
861 | nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp); | |
89766727 VT |
862 | |
863 | memcpy(&rdev->radar_chandef, chandef, sizeof(struct cfg80211_chan_def)); | |
864 | queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk); | |
04f39047 SW |
865 | } |
866 | EXPORT_SYMBOL(cfg80211_radar_event); | |
867 | ||
868 | void cfg80211_cac_event(struct net_device *netdev, | |
d2859df5 | 869 | const struct cfg80211_chan_def *chandef, |
04f39047 SW |
870 | enum nl80211_radar_event event, gfp_t gfp) |
871 | { | |
872 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
873 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 874 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
04f39047 SW |
875 | unsigned long timeout; |
876 | ||
877 | trace_cfg80211_cac_event(netdev, event); | |
878 | ||
85096451 | 879 | if (WARN_ON(!wdev->cac_started && event != NL80211_RADAR_CAC_STARTED)) |
04f39047 SW |
880 | return; |
881 | ||
9e0e2961 | 882 | if (WARN_ON(!wdev->chandef.chan)) |
04f39047 SW |
883 | return; |
884 | ||
04f39047 SW |
885 | switch (event) { |
886 | case NL80211_RADAR_CAC_FINISHED: | |
887 | timeout = wdev->cac_start_time + | |
31559f35 | 888 | msecs_to_jiffies(wdev->cac_time_ms); |
04f39047 | 889 | WARN_ON(!time_after_eq(jiffies, timeout)); |
d2859df5 | 890 | cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE); |
89766727 VT |
891 | memcpy(&rdev->cac_done_chandef, chandef, |
892 | sizeof(struct cfg80211_chan_def)); | |
893 | queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk); | |
b35a51c7 | 894 | cfg80211_sched_dfs_chan_update(rdev); |
2cb021f5 | 895 | /* fall through */ |
04f39047 | 896 | case NL80211_RADAR_CAC_ABORTED: |
2cb021f5 DL |
897 | wdev->cac_started = false; |
898 | break; | |
899 | case NL80211_RADAR_CAC_STARTED: | |
900 | wdev->cac_started = true; | |
04f39047 SW |
901 | break; |
902 | default: | |
903 | WARN_ON(1); | |
904 | return; | |
905 | } | |
04f39047 | 906 | |
d2859df5 | 907 | nl80211_radar_notify(rdev, chandef, event, netdev, gfp); |
04f39047 SW |
908 | } |
909 | EXPORT_SYMBOL(cfg80211_cac_event); |