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 |
ff74c51e | 7 | * Copyright (C) 2019 Intel Corporation |
6039f6d2 JM |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/module.h> | |
c6fb08aa | 12 | #include <linux/etherdevice.h> |
6039f6d2 JM |
13 | #include <linux/netdevice.h> |
14 | #include <linux/nl80211.h> | |
5a0e3ad6 | 15 | #include <linux/slab.h> |
a9a11622 | 16 | #include <linux/wireless.h> |
6039f6d2 | 17 | #include <net/cfg80211.h> |
a9a11622 | 18 | #include <net/iw_handler.h> |
6039f6d2 JM |
19 | #include "core.h" |
20 | #include "nl80211.h" | |
e35e4d28 HG |
21 | #include "rdev-ops.h" |
22 | ||
6039f6d2 | 23 | |
6ff57cf8 | 24 | void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss, |
4d9ec73d JM |
25 | const u8 *buf, size_t len, int uapsd_queues, |
26 | const u8 *req_ies, size_t req_ies_len) | |
6039f6d2 | 27 | { |
6829c878 JB |
28 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
29 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 30 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 | 31 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
5349a0f7 | 32 | struct cfg80211_connect_resp_params cr; |
80ca2571 TP |
33 | const u8 *resp_ie = mgmt->u.assoc_resp.variable; |
34 | size_t resp_ie_len = len - offsetof(struct ieee80211_mgmt, | |
35 | u.assoc_resp.variable); | |
36 | ||
37 | if (bss->channel->band == NL80211_BAND_S1GHZ) { | |
38 | resp_ie = (u8 *)&mgmt->u.s1g_assoc_resp.variable; | |
39 | resp_ie_len = len - offsetof(struct ieee80211_mgmt, | |
40 | u.s1g_assoc_resp.variable); | |
41 | } | |
5349a0f7 VK |
42 | |
43 | memset(&cr, 0, sizeof(cr)); | |
44 | cr.status = (int)le16_to_cpu(mgmt->u.assoc_resp.status_code); | |
45 | cr.bssid = mgmt->bssid; | |
46 | cr.bss = bss; | |
4d9ec73d JM |
47 | cr.req_ie = req_ies; |
48 | cr.req_ie_len = req_ies_len; | |
80ca2571 TP |
49 | cr.resp_ie = resp_ie; |
50 | cr.resp_ie_len = resp_ie_len; | |
5349a0f7 | 51 | cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED; |
6829c878 | 52 | |
4ee3e063 | 53 | trace_cfg80211_send_rx_assoc(dev, bss); |
cb0b4beb | 54 | |
f401a6f7 JB |
55 | /* |
56 | * This is a bit of a hack, we don't notify userspace of | |
57 | * a (re-)association reply if we tried to send a reassoc | |
58 | * and got a reject -- we only try again with an assoc | |
59 | * frame instead of reassoc. | |
60 | */ | |
5349a0f7 | 61 | if (cfg80211_sme_rx_assoc_resp(wdev, cr.status)) { |
f1940c57 | 62 | cfg80211_unhold_bss(bss_from_pub(bss)); |
5b112d3d | 63 | cfg80211_put_bss(wiphy, bss); |
8d61ffa5 | 64 | return; |
95de817b | 65 | } |
f401a6f7 | 66 | |
4d9ec73d JM |
67 | nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL, uapsd_queues, |
68 | req_ies, req_ies_len); | |
ceca7b71 | 69 | /* update current_bss etc., consumes the bss reference */ |
5349a0f7 | 70 | __cfg80211_connect_result(dev, &cr, cr.status == WLAN_STATUS_SUCCESS); |
6039f6d2 | 71 | } |
6ff57cf8 | 72 | EXPORT_SYMBOL(cfg80211_rx_assoc_resp); |
6039f6d2 | 73 | |
ceca7b71 JB |
74 | static void cfg80211_process_auth(struct wireless_dev *wdev, |
75 | const u8 *buf, size_t len) | |
76 | { | |
f26cbf40 | 77 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
78 | |
79 | nl80211_send_rx_auth(rdev, wdev->netdev, buf, len, GFP_KERNEL); | |
80 | cfg80211_sme_rx_auth(wdev, buf, len); | |
81 | } | |
82 | ||
83 | static void cfg80211_process_deauth(struct wireless_dev *wdev, | |
6ff57cf8 | 84 | const u8 *buf, size_t len) |
6039f6d2 | 85 | { |
f26cbf40 | 86 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 87 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 | 88 | const u8 *bssid = mgmt->bssid; |
ceca7b71 JB |
89 | u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
90 | bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | |
6829c878 | 91 | |
ceca7b71 | 92 | nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL); |
19957bb3 | 93 | |
ceca7b71 JB |
94 | if (!wdev->current_bss || |
95 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) | |
96 | return; | |
6829c878 | 97 | |
ceca7b71 JB |
98 | __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap); |
99 | cfg80211_sme_deauth(wdev); | |
667503dd | 100 | } |
6039f6d2 | 101 | |
ceca7b71 | 102 | static void cfg80211_process_disassoc(struct wireless_dev *wdev, |
6ff57cf8 | 103 | const u8 *buf, size_t len) |
6039f6d2 | 104 | { |
f26cbf40 | 105 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 106 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 | 107 | const u8 *bssid = mgmt->bssid; |
ceca7b71 JB |
108 | u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); |
109 | bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | |
6829c878 | 110 | |
ceca7b71 | 111 | nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL); |
a3b8b056 | 112 | |
ceca7b71 JB |
113 | if (WARN_ON(!wdev->current_bss || |
114 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
596a07c1 | 115 | return; |
6829c878 | 116 | |
ceca7b71 JB |
117 | __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap); |
118 | cfg80211_sme_disassoc(wdev); | |
667503dd | 119 | } |
1965c853 | 120 | |
6ff57cf8 JB |
121 | void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) |
122 | { | |
123 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6ff57cf8 JB |
124 | struct ieee80211_mgmt *mgmt = (void *)buf; |
125 | ||
126 | ASSERT_WDEV_LOCK(wdev); | |
127 | ||
128 | trace_cfg80211_rx_mlme_mgmt(dev, buf, len); | |
129 | ||
130 | if (WARN_ON(len < 2)) | |
131 | return; | |
132 | ||
ceca7b71 JB |
133 | if (ieee80211_is_auth(mgmt->frame_control)) |
134 | cfg80211_process_auth(wdev, buf, len); | |
135 | else if (ieee80211_is_deauth(mgmt->frame_control)) | |
136 | cfg80211_process_deauth(wdev, buf, len); | |
137 | else if (ieee80211_is_disassoc(mgmt->frame_control)) | |
138 | cfg80211_process_disassoc(wdev, buf, len); | |
6ff57cf8 JB |
139 | } |
140 | EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt); | |
141 | ||
142 | void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr) | |
a58ce43f JB |
143 | { |
144 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
145 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 146 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
a58ce43f | 147 | |
4ee3e063 | 148 | trace_cfg80211_send_auth_timeout(dev, addr); |
a58ce43f JB |
149 | |
150 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); | |
ceca7b71 | 151 | cfg80211_sme_auth_timeout(wdev); |
1965c853 | 152 | } |
6ff57cf8 | 153 | EXPORT_SYMBOL(cfg80211_auth_timeout); |
1965c853 | 154 | |
959867fa | 155 | void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss) |
1965c853 | 156 | { |
6829c878 JB |
157 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
158 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 159 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
19957bb3 | 160 | |
959867fa | 161 | trace_cfg80211_send_assoc_timeout(dev, bss->bssid); |
cb0b4beb | 162 | |
959867fa | 163 | nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL); |
ceca7b71 | 164 | cfg80211_sme_assoc_timeout(wdev); |
959867fa | 165 | |
f1940c57 | 166 | cfg80211_unhold_bss(bss_from_pub(bss)); |
959867fa | 167 | cfg80211_put_bss(wiphy, bss); |
1965c853 | 168 | } |
6ff57cf8 JB |
169 | EXPORT_SYMBOL(cfg80211_assoc_timeout); |
170 | ||
e6f462df JB |
171 | void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss) |
172 | { | |
173 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
174 | struct wiphy *wiphy = wdev->wiphy; | |
175 | ||
176 | cfg80211_sme_abandon_assoc(wdev); | |
177 | ||
178 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
179 | cfg80211_put_bss(wiphy, bss); | |
180 | } | |
181 | EXPORT_SYMBOL(cfg80211_abandon_assoc); | |
182 | ||
6ff57cf8 JB |
183 | void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) |
184 | { | |
185 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
186 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
187 | ||
188 | ASSERT_WDEV_LOCK(wdev); | |
189 | ||
190 | trace_cfg80211_tx_mlme_mgmt(dev, buf, len); | |
191 | ||
192 | if (WARN_ON(len < 2)) | |
193 | return; | |
194 | ||
195 | if (ieee80211_is_deauth(mgmt->frame_control)) | |
ceca7b71 | 196 | cfg80211_process_deauth(wdev, buf, len); |
6ff57cf8 | 197 | else |
ceca7b71 | 198 | cfg80211_process_disassoc(wdev, buf, len); |
6ff57cf8 JB |
199 | } |
200 | EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt); | |
1965c853 | 201 | |
a3b8b056 JM |
202 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
203 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 204 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
205 | { |
206 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
f26cbf40 | 207 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
3d23e349 | 208 | #ifdef CONFIG_CFG80211_WEXT |
f58d4ed9 | 209 | union iwreq_data wrqu; |
e6d6e342 | 210 | char *buf = kmalloc(128, gfp); |
f58d4ed9 JB |
211 | |
212 | if (buf) { | |
213 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" | |
214 | "keyid=%d %scast addr=%pM)", key_id, | |
215 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", | |
216 | addr); | |
217 | memset(&wrqu, 0, sizeof(wrqu)); | |
218 | wrqu.data.length = strlen(buf); | |
219 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); | |
220 | kfree(buf); | |
221 | } | |
222 | #endif | |
223 | ||
4ee3e063 | 224 | trace_cfg80211_michael_mic_failure(dev, addr, key_type, key_id, tsc); |
e6d6e342 | 225 | nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp); |
a3b8b056 JM |
226 | } |
227 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); | |
19957bb3 JB |
228 | |
229 | /* some MLME handling for userspace SME */ | |
91bf9b26 JB |
230 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
231 | struct net_device *dev, | |
232 | struct ieee80211_channel *chan, | |
233 | enum nl80211_auth_type auth_type, | |
234 | const u8 *bssid, | |
235 | const u8 *ssid, int ssid_len, | |
236 | const u8 *ie, int ie_len, | |
237 | const u8 *key, int key_len, int key_idx, | |
11b6b5a4 | 238 | const u8 *auth_data, int auth_data_len) |
19957bb3 JB |
239 | { |
240 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7ade7036 JB |
241 | struct cfg80211_auth_request req = { |
242 | .ie = ie, | |
243 | .ie_len = ie_len, | |
11b6b5a4 JM |
244 | .auth_data = auth_data, |
245 | .auth_data_len = auth_data_len, | |
7ade7036 JB |
246 | .auth_type = auth_type, |
247 | .key = key, | |
248 | .key_len = key_len, | |
249 | .key_idx = key_idx, | |
250 | }; | |
95de817b | 251 | int err; |
19957bb3 | 252 | |
667503dd JB |
253 | ASSERT_WDEV_LOCK(wdev); |
254 | ||
fffd0934 | 255 | if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
b6b5555b | 256 | if (!key || !key_len || key_idx < 0 || key_idx > 3) |
fffd0934 JB |
257 | return -EINVAL; |
258 | ||
0a9b5e17 | 259 | if (wdev->current_bss && |
ac422d3c | 260 | ether_addr_equal(bssid, wdev->current_bss->pub.bssid)) |
0a9b5e17 JB |
261 | return -EALREADY; |
262 | ||
19957bb3 | 263 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
6eb18137 DL |
264 | IEEE80211_BSS_TYPE_ESS, |
265 | IEEE80211_PRIVACY_ANY); | |
19957bb3 JB |
266 | if (!req.bss) |
267 | return -ENOENT; | |
268 | ||
e35e4d28 | 269 | err = rdev_auth(rdev, dev, &req); |
19957bb3 | 270 | |
5b112d3d | 271 | cfg80211_put_bss(&rdev->wiphy, req.bss); |
19957bb3 JB |
272 | return err; |
273 | } | |
274 | ||
7e7c8926 BG |
275 | /* Do a logical ht_capa &= ht_capa_mask. */ |
276 | void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, | |
277 | const struct ieee80211_ht_cap *ht_capa_mask) | |
278 | { | |
279 | int i; | |
280 | u8 *p1, *p2; | |
281 | if (!ht_capa_mask) { | |
282 | memset(ht_capa, 0, sizeof(*ht_capa)); | |
283 | return; | |
284 | } | |
285 | ||
286 | p1 = (u8*)(ht_capa); | |
287 | p2 = (u8*)(ht_capa_mask); | |
81c5dce2 | 288 | for (i = 0; i < sizeof(*ht_capa); i++) |
7e7c8926 BG |
289 | p1[i] &= p2[i]; |
290 | } | |
291 | ||
81c5dce2 | 292 | /* Do a logical vht_capa &= vht_capa_mask. */ |
ee2aca34 JB |
293 | void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa, |
294 | const struct ieee80211_vht_cap *vht_capa_mask) | |
295 | { | |
296 | int i; | |
297 | u8 *p1, *p2; | |
298 | if (!vht_capa_mask) { | |
299 | memset(vht_capa, 0, sizeof(*vht_capa)); | |
300 | return; | |
301 | } | |
302 | ||
303 | p1 = (u8*)(vht_capa); | |
304 | p2 = (u8*)(vht_capa_mask); | |
305 | for (i = 0; i < sizeof(*vht_capa); i++) | |
306 | p1[i] &= p2[i]; | |
307 | } | |
308 | ||
91bf9b26 JB |
309 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
310 | struct net_device *dev, | |
311 | struct ieee80211_channel *chan, | |
312 | const u8 *bssid, | |
313 | const u8 *ssid, int ssid_len, | |
314 | struct cfg80211_assoc_request *req) | |
19957bb3 JB |
315 | { |
316 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b | 317 | int err; |
19957bb3 | 318 | |
667503dd JB |
319 | ASSERT_WDEV_LOCK(wdev); |
320 | ||
ceca7b71 JB |
321 | if (wdev->current_bss && |
322 | (!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid, | |
323 | req->prev_bssid))) | |
19957bb3 JB |
324 | return -EALREADY; |
325 | ||
f62fab73 | 326 | cfg80211_oper_and_ht_capa(&req->ht_capa_mask, |
7e7c8926 | 327 | rdev->wiphy.ht_capa_mod_mask); |
f62fab73 | 328 | cfg80211_oper_and_vht_capa(&req->vht_capa_mask, |
ee2aca34 | 329 | rdev->wiphy.vht_capa_mod_mask); |
7e7c8926 | 330 | |
f62fab73 | 331 | req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
6eb18137 DL |
332 | IEEE80211_BSS_TYPE_ESS, |
333 | IEEE80211_PRIVACY_ANY); | |
ceca7b71 | 334 | if (!req->bss) |
19957bb3 JB |
335 | return -ENOENT; |
336 | ||
f62fab73 | 337 | err = rdev_assoc(rdev, dev, req); |
f1940c57 JB |
338 | if (!err) |
339 | cfg80211_hold_bss(bss_from_pub(req->bss)); | |
73de86a3 | 340 | else |
f62fab73 | 341 | cfg80211_put_bss(&rdev->wiphy, req->bss); |
19957bb3 | 342 | |
19957bb3 JB |
343 | return err; |
344 | } | |
345 | ||
91bf9b26 JB |
346 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
347 | struct net_device *dev, const u8 *bssid, | |
348 | const u8 *ie, int ie_len, u16 reason, | |
349 | bool local_state_change) | |
19957bb3 JB |
350 | { |
351 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b JB |
352 | struct cfg80211_deauth_request req = { |
353 | .bssid = bssid, | |
354 | .reason_code = reason, | |
355 | .ie = ie, | |
356 | .ie_len = ie_len, | |
6863255b | 357 | .local_state_change = local_state_change, |
95de817b | 358 | }; |
19957bb3 | 359 | |
667503dd JB |
360 | ASSERT_WDEV_LOCK(wdev); |
361 | ||
ceca7b71 JB |
362 | if (local_state_change && |
363 | (!wdev->current_bss || | |
364 | !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
95de817b | 365 | return 0; |
19957bb3 | 366 | |
bd2522b1 AZ |
367 | if (ether_addr_equal(wdev->disconnect_bssid, bssid) || |
368 | (wdev->current_bss && | |
369 | ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | |
370 | wdev->conn_owner_nlportid = 0; | |
371 | ||
e35e4d28 | 372 | return rdev_deauth(rdev, dev, &req); |
19957bb3 JB |
373 | } |
374 | ||
91bf9b26 JB |
375 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
376 | struct net_device *dev, const u8 *bssid, | |
377 | const u8 *ie, int ie_len, u16 reason, | |
378 | bool local_state_change) | |
19957bb3 JB |
379 | { |
380 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7ade7036 JB |
381 | struct cfg80211_disassoc_request req = { |
382 | .reason_code = reason, | |
383 | .local_state_change = local_state_change, | |
384 | .ie = ie, | |
385 | .ie_len = ie_len, | |
386 | }; | |
ceca7b71 | 387 | int err; |
19957bb3 | 388 | |
667503dd JB |
389 | ASSERT_WDEV_LOCK(wdev); |
390 | ||
ceca7b71 | 391 | if (!wdev->current_bss) |
f9d6b402 JB |
392 | return -ENOTCONN; |
393 | ||
ac422d3c | 394 | if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) |
19957bb3 JB |
395 | req.bss = &wdev->current_bss->pub; |
396 | else | |
397 | return -ENOTCONN; | |
398 | ||
ceca7b71 JB |
399 | err = rdev_disassoc(rdev, dev, &req); |
400 | if (err) | |
401 | return err; | |
402 | ||
403 | /* driver should have reported the disassoc */ | |
404 | WARN_ON(wdev->current_bss); | |
405 | return 0; | |
667503dd JB |
406 | } |
407 | ||
19957bb3 JB |
408 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
409 | struct net_device *dev) | |
410 | { | |
411 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
95de817b | 412 | u8 bssid[ETH_ALEN]; |
19957bb3 | 413 | |
667503dd JB |
414 | ASSERT_WDEV_LOCK(wdev); |
415 | ||
19957bb3 JB |
416 | if (!rdev->ops->deauth) |
417 | return; | |
418 | ||
95de817b JB |
419 | if (!wdev->current_bss) |
420 | return; | |
19957bb3 | 421 | |
95de817b | 422 | memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); |
ceca7b71 JB |
423 | cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, |
424 | WLAN_REASON_DEAUTH_LEAVING, false); | |
19957bb3 | 425 | } |
9588bbd5 | 426 | |
2e161f78 | 427 | struct cfg80211_mgmt_registration { |
026331c4 | 428 | struct list_head list; |
33d8783c | 429 | struct wireless_dev *wdev; |
026331c4 | 430 | |
15e47304 | 431 | u32 nlportid; |
026331c4 JM |
432 | |
433 | int match_len; | |
434 | ||
2e161f78 JB |
435 | __le16 frame_type; |
436 | ||
9dba48a6 JB |
437 | bool multicast_rx; |
438 | ||
026331c4 JM |
439 | u8 match[]; |
440 | }; | |
441 | ||
6cd536fe | 442 | static void cfg80211_mgmt_registrations_update(struct wireless_dev *wdev) |
33d8783c | 443 | { |
6cd536fe JB |
444 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
445 | struct wireless_dev *tmp; | |
33d8783c | 446 | struct cfg80211_mgmt_registration *reg; |
6cd536fe | 447 | struct mgmt_frame_regs upd = {}; |
33d8783c JB |
448 | |
449 | ASSERT_RTNL(); | |
450 | ||
79ea1e12 JB |
451 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
452 | if (!wdev->mgmt_registrations_need_update) { | |
453 | spin_unlock_bh(&wdev->mgmt_registrations_lock); | |
454 | return; | |
455 | } | |
456 | ||
6cd536fe JB |
457 | rcu_read_lock(); |
458 | list_for_each_entry_rcu(tmp, &rdev->wiphy.wdev_list, list) { | |
79ea1e12 | 459 | list_for_each_entry(reg, &tmp->mgmt_registrations, list) { |
6cd536fe | 460 | u32 mask = BIT(le16_to_cpu(reg->frame_type) >> 4); |
9dba48a6 JB |
461 | u32 mcast_mask = 0; |
462 | ||
463 | if (reg->multicast_rx) | |
464 | mcast_mask = mask; | |
33d8783c | 465 | |
6cd536fe | 466 | upd.global_stypes |= mask; |
9dba48a6 JB |
467 | upd.global_mcast_stypes |= mcast_mask; |
468 | ||
469 | if (tmp == wdev) { | |
6cd536fe | 470 | upd.interface_stypes |= mask; |
9dba48a6 JB |
471 | upd.interface_mcast_stypes |= mcast_mask; |
472 | } | |
33d8783c | 473 | } |
33d8783c | 474 | } |
6cd536fe JB |
475 | rcu_read_unlock(); |
476 | ||
79ea1e12 JB |
477 | wdev->mgmt_registrations_need_update = 0; |
478 | spin_unlock_bh(&wdev->mgmt_registrations_lock); | |
479 | ||
6cd536fe | 480 | rdev_update_mgmt_frame_registrations(rdev, wdev, &upd); |
33d8783c JB |
481 | } |
482 | ||
6cd536fe | 483 | void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk) |
33d8783c | 484 | { |
79ea1e12 JB |
485 | struct cfg80211_registered_device *rdev; |
486 | struct wireless_dev *wdev; | |
487 | ||
488 | rdev = container_of(wk, struct cfg80211_registered_device, | |
489 | mgmt_registrations_update_wk); | |
33d8783c JB |
490 | |
491 | rtnl_lock(); | |
79ea1e12 JB |
492 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) |
493 | cfg80211_mgmt_registrations_update(wdev); | |
33d8783c JB |
494 | rtnl_unlock(); |
495 | } | |
496 | ||
15e47304 | 497 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid, |
2e161f78 | 498 | u16 frame_type, const u8 *match_data, |
9dba48a6 JB |
499 | int match_len, bool multicast_rx, |
500 | struct netlink_ext_ack *extack) | |
026331c4 | 501 | { |
2e161f78 | 502 | struct cfg80211_mgmt_registration *reg, *nreg; |
026331c4 | 503 | int err = 0; |
2e161f78 | 504 | u16 mgmt_type; |
9dba48a6 | 505 | bool update_multicast = false; |
2e161f78 JB |
506 | |
507 | if (!wdev->wiphy->mgmt_stypes) | |
508 | return -EOPNOTSUPP; | |
509 | ||
ff74c51e IP |
510 | if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) { |
511 | NL_SET_ERR_MSG(extack, "frame type not management"); | |
2e161f78 | 512 | return -EINVAL; |
ff74c51e | 513 | } |
2e161f78 | 514 | |
ff74c51e IP |
515 | if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) { |
516 | NL_SET_ERR_MSG(extack, "Invalid frame type"); | |
2e161f78 | 517 | return -EINVAL; |
ff74c51e | 518 | } |
2e161f78 JB |
519 | |
520 | mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; | |
ff74c51e IP |
521 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) { |
522 | NL_SET_ERR_MSG(extack, | |
523 | "Registration to specific type not supported"); | |
524 | return -EINVAL; | |
525 | } | |
526 | ||
527 | /* | |
528 | * To support Pre Association Security Negotiation (PASN), registration | |
529 | * for authentication frames should be supported. However, as some | |
530 | * versions of the user space daemons wrongly register to all types of | |
531 | * authentication frames (which might result in unexpected behavior) | |
532 | * allow such registration if the request is for a specific | |
533 | * authentication algorithm number. | |
534 | */ | |
535 | if (wdev->iftype == NL80211_IFTYPE_STATION && | |
536 | (frame_type & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_AUTH && | |
537 | !(match_data && match_len >= 2)) { | |
538 | NL_SET_ERR_MSG(extack, | |
539 | "Authentication algorithm number required"); | |
2e161f78 | 540 | return -EINVAL; |
ff74c51e | 541 | } |
026331c4 JM |
542 | |
543 | nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); | |
544 | if (!nreg) | |
545 | return -ENOMEM; | |
546 | ||
2e161f78 | 547 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 548 | |
2e161f78 | 549 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
026331c4 JM |
550 | int mlen = min(match_len, reg->match_len); |
551 | ||
2e161f78 JB |
552 | if (frame_type != le16_to_cpu(reg->frame_type)) |
553 | continue; | |
554 | ||
026331c4 | 555 | if (memcmp(reg->match, match_data, mlen) == 0) { |
9dba48a6 JB |
556 | if (reg->multicast_rx != multicast_rx) { |
557 | update_multicast = true; | |
558 | reg->multicast_rx = multicast_rx; | |
559 | break; | |
560 | } | |
ff74c51e | 561 | NL_SET_ERR_MSG(extack, "Match already configured"); |
026331c4 JM |
562 | err = -EALREADY; |
563 | break; | |
564 | } | |
565 | } | |
566 | ||
6cd536fe | 567 | if (err) |
026331c4 | 568 | goto out; |
026331c4 | 569 | |
9dba48a6 JB |
570 | if (update_multicast) { |
571 | kfree(nreg); | |
572 | } else { | |
573 | memcpy(nreg->match, match_data, match_len); | |
574 | nreg->match_len = match_len; | |
575 | nreg->nlportid = snd_portid; | |
576 | nreg->frame_type = cpu_to_le16(frame_type); | |
577 | nreg->wdev = wdev; | |
578 | nreg->multicast_rx = multicast_rx; | |
579 | list_add(&nreg->list, &wdev->mgmt_registrations); | |
580 | } | |
79ea1e12 | 581 | wdev->mgmt_registrations_need_update = 1; |
33d8783c JB |
582 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
583 | ||
6cd536fe | 584 | cfg80211_mgmt_registrations_update(wdev); |
271733cf | 585 | |
33d8783c JB |
586 | return 0; |
587 | ||
026331c4 | 588 | out: |
6cd536fe | 589 | kfree(nreg); |
2e161f78 | 590 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
271733cf | 591 | |
026331c4 JM |
592 | return err; |
593 | } | |
594 | ||
15e47304 | 595 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid) |
026331c4 | 596 | { |
271733cf | 597 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 598 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
2e161f78 | 599 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 600 | |
2e161f78 | 601 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 602 | |
2e161f78 | 603 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
15e47304 | 604 | if (reg->nlportid != nlportid) |
271733cf JB |
605 | continue; |
606 | ||
271733cf | 607 | list_del(®->list); |
6cd536fe | 608 | kfree(reg); |
33d8783c | 609 | |
79ea1e12 JB |
610 | wdev->mgmt_registrations_need_update = 1; |
611 | schedule_work(&rdev->mgmt_registrations_update_wk); | |
026331c4 JM |
612 | } |
613 | ||
2e161f78 | 614 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
28946da7 | 615 | |
5de17984 AS |
616 | if (nlportid && rdev->crit_proto_nlportid == nlportid) { |
617 | rdev->crit_proto_nlportid = 0; | |
618 | rdev_crit_proto_stop(rdev, wdev); | |
619 | } | |
620 | ||
15e47304 EB |
621 | if (nlportid == wdev->ap_unexpected_nlportid) |
622 | wdev->ap_unexpected_nlportid = 0; | |
026331c4 JM |
623 | } |
624 | ||
2e161f78 | 625 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) |
026331c4 | 626 | { |
6cd536fe | 627 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 628 | |
2e161f78 | 629 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
6cd536fe JB |
630 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
631 | list_del(®->list); | |
632 | kfree(reg); | |
633 | } | |
79ea1e12 | 634 | wdev->mgmt_registrations_need_update = 1; |
2e161f78 | 635 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
33d8783c | 636 | |
6cd536fe | 637 | cfg80211_mgmt_registrations_update(wdev); |
026331c4 JM |
638 | } |
639 | ||
2e161f78 | 640 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, |
71bbc994 | 641 | struct wireless_dev *wdev, |
b176e629 | 642 | struct cfg80211_mgmt_tx_params *params, u64 *cookie) |
026331c4 | 643 | { |
026331c4 | 644 | const struct ieee80211_mgmt *mgmt; |
2e161f78 JB |
645 | u16 stype; |
646 | ||
647 | if (!wdev->wiphy->mgmt_stypes) | |
648 | return -EOPNOTSUPP; | |
026331c4 | 649 | |
2e161f78 | 650 | if (!rdev->ops->mgmt_tx) |
026331c4 | 651 | return -EOPNOTSUPP; |
2e161f78 | 652 | |
b176e629 | 653 | if (params->len < 24 + 1) |
026331c4 JM |
654 | return -EINVAL; |
655 | ||
b176e629 | 656 | mgmt = (const struct ieee80211_mgmt *)params->buf; |
2e161f78 JB |
657 | |
658 | if (!ieee80211_is_mgmt(mgmt->frame_control)) | |
026331c4 | 659 | return -EINVAL; |
2e161f78 JB |
660 | |
661 | stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; | |
662 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) | |
663 | return -EINVAL; | |
664 | ||
665 | if (ieee80211_is_action(mgmt->frame_control) && | |
666 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { | |
663fcafd JB |
667 | int err = 0; |
668 | ||
fe100acd JB |
669 | wdev_lock(wdev); |
670 | ||
663fcafd JB |
671 | switch (wdev->iftype) { |
672 | case NL80211_IFTYPE_ADHOC: | |
673 | case NL80211_IFTYPE_STATION: | |
674 | case NL80211_IFTYPE_P2P_CLIENT: | |
675 | if (!wdev->current_bss) { | |
676 | err = -ENOTCONN; | |
677 | break; | |
678 | } | |
679 | ||
ac422d3c JP |
680 | if (!ether_addr_equal(wdev->current_bss->pub.bssid, |
681 | mgmt->bssid)) { | |
663fcafd JB |
682 | err = -ENOTCONN; |
683 | break; | |
684 | } | |
685 | ||
686 | /* | |
687 | * check for IBSS DA must be done by driver as | |
688 | * cfg80211 doesn't track the stations | |
689 | */ | |
690 | if (wdev->iftype == NL80211_IFTYPE_ADHOC) | |
691 | break; | |
fe100acd | 692 | |
663fcafd | 693 | /* for station, check that DA is the AP */ |
ac422d3c JP |
694 | if (!ether_addr_equal(wdev->current_bss->pub.bssid, |
695 | mgmt->da)) { | |
663fcafd JB |
696 | err = -ENOTCONN; |
697 | break; | |
698 | } | |
699 | break; | |
700 | case NL80211_IFTYPE_AP: | |
701 | case NL80211_IFTYPE_P2P_GO: | |
702 | case NL80211_IFTYPE_AP_VLAN: | |
98104fde | 703 | if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev))) |
663fcafd JB |
704 | err = -EINVAL; |
705 | break; | |
0778a6a3 | 706 | case NL80211_IFTYPE_MESH_POINT: |
ac422d3c | 707 | if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) { |
0778a6a3 JC |
708 | err = -EINVAL; |
709 | break; | |
710 | } | |
711 | /* | |
712 | * check for mesh DA must be done by driver as | |
713 | * cfg80211 doesn't track the stations | |
714 | */ | |
715 | break; | |
98104fde JB |
716 | case NL80211_IFTYPE_P2P_DEVICE: |
717 | /* | |
718 | * fall through, P2P device only supports | |
719 | * public action frames | |
720 | */ | |
cb3b7d87 | 721 | case NL80211_IFTYPE_NAN: |
663fcafd JB |
722 | default: |
723 | err = -EOPNOTSUPP; | |
724 | break; | |
725 | } | |
fe100acd | 726 | wdev_unlock(wdev); |
663fcafd JB |
727 | |
728 | if (err) | |
729 | return err; | |
026331c4 JM |
730 | } |
731 | ||
ab5bb2d5 | 732 | if (!ether_addr_equal(mgmt->sa, wdev_address(wdev))) { |
733 | /* Allow random TA to be used with Public Action frames if the | |
734 | * driver has indicated support for this. Otherwise, only allow | |
735 | * the local address to be used. | |
736 | */ | |
737 | if (!ieee80211_is_action(mgmt->frame_control) || | |
738 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) | |
739 | return -EINVAL; | |
740 | if (!wdev->current_bss && | |
741 | !wiphy_ext_feature_isset( | |
742 | &rdev->wiphy, | |
743 | NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA)) | |
744 | return -EINVAL; | |
745 | if (wdev->current_bss && | |
746 | !wiphy_ext_feature_isset( | |
747 | &rdev->wiphy, | |
748 | NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED)) | |
749 | return -EINVAL; | |
750 | } | |
026331c4 JM |
751 | |
752 | /* Transmit the Action frame as requested by user space */ | |
b176e629 | 753 | return rdev_mgmt_tx(rdev, wdev, params, cookie); |
026331c4 JM |
754 | } |
755 | ||
e76fede8 TP |
756 | bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, int sig_dbm, |
757 | const u8 *buf, size_t len, u32 flags) | |
026331c4 | 758 | { |
026331c4 | 759 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 760 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
2e161f78 JB |
761 | struct cfg80211_mgmt_registration *reg; |
762 | const struct ieee80211_txrx_stypes *stypes = | |
763 | &wiphy->mgmt_stypes[wdev->iftype]; | |
764 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
765 | const u8 *data; | |
766 | int data_len; | |
026331c4 | 767 | bool result = false; |
2e161f78 JB |
768 | __le16 ftype = mgmt->frame_control & |
769 | cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); | |
770 | u16 stype; | |
026331c4 | 771 | |
6c2fb1e6 | 772 | trace_cfg80211_rx_mgmt(wdev, freq, sig_dbm); |
2e161f78 | 773 | stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; |
026331c4 | 774 | |
4ee3e063 BL |
775 | if (!(stypes->rx & BIT(stype))) { |
776 | trace_cfg80211_return_bool(false); | |
2e161f78 | 777 | return false; |
4ee3e063 | 778 | } |
026331c4 | 779 | |
2e161f78 JB |
780 | data = buf + ieee80211_hdrlen(mgmt->frame_control); |
781 | data_len = len - ieee80211_hdrlen(mgmt->frame_control); | |
782 | ||
783 | spin_lock_bh(&wdev->mgmt_registrations_lock); | |
784 | ||
785 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { | |
786 | if (reg->frame_type != ftype) | |
787 | continue; | |
026331c4 | 788 | |
2e161f78 | 789 | if (reg->match_len > data_len) |
026331c4 JM |
790 | continue; |
791 | ||
2e161f78 | 792 | if (memcmp(reg->match, data, reg->match_len)) |
026331c4 JM |
793 | continue; |
794 | ||
795 | /* found match! */ | |
796 | ||
797 | /* Indicate the received Action frame to user space */ | |
15e47304 | 798 | if (nl80211_send_mgmt(rdev, wdev, reg->nlportid, |
6c2fb1e6 | 799 | freq, sig_dbm, |
970fdfa8 | 800 | buf, len, flags, GFP_ATOMIC)) |
026331c4 JM |
801 | continue; |
802 | ||
803 | result = true; | |
804 | break; | |
805 | } | |
806 | ||
2e161f78 | 807 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 808 | |
4ee3e063 | 809 | trace_cfg80211_return_bool(result); |
026331c4 JM |
810 | return result; |
811 | } | |
e76fede8 | 812 | EXPORT_SYMBOL(cfg80211_rx_mgmt_khz); |
026331c4 | 813 | |
b35a51c7 VT |
814 | void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev) |
815 | { | |
816 | cancel_delayed_work(&rdev->dfs_update_channels_wk); | |
817 | queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, 0); | |
818 | } | |
819 | ||
04f39047 SW |
820 | void cfg80211_dfs_channels_update_work(struct work_struct *work) |
821 | { | |
a85a7e28 | 822 | struct delayed_work *delayed_work = to_delayed_work(work); |
04f39047 SW |
823 | struct cfg80211_registered_device *rdev; |
824 | struct cfg80211_chan_def chandef; | |
825 | struct ieee80211_supported_band *sband; | |
826 | struct ieee80211_channel *c; | |
827 | struct wiphy *wiphy; | |
828 | bool check_again = false; | |
829 | unsigned long timeout, next_time = 0; | |
b35a51c7 VT |
830 | unsigned long time_dfs_update; |
831 | enum nl80211_radar_event radar_event; | |
04f39047 SW |
832 | int bandid, i; |
833 | ||
04f39047 SW |
834 | rdev = container_of(delayed_work, struct cfg80211_registered_device, |
835 | dfs_update_channels_wk); | |
836 | wiphy = &rdev->wiphy; | |
837 | ||
5fe231e8 | 838 | rtnl_lock(); |
57fbcce3 | 839 | for (bandid = 0; bandid < NUM_NL80211_BANDS; bandid++) { |
04f39047 SW |
840 | sband = wiphy->bands[bandid]; |
841 | if (!sband) | |
842 | continue; | |
843 | ||
844 | for (i = 0; i < sband->n_channels; i++) { | |
845 | c = &sband->channels[i]; | |
846 | ||
b35a51c7 VT |
847 | if (!(c->flags & IEEE80211_CHAN_RADAR)) |
848 | continue; | |
849 | ||
850 | if (c->dfs_state != NL80211_DFS_UNAVAILABLE && | |
851 | c->dfs_state != NL80211_DFS_AVAILABLE) | |
04f39047 SW |
852 | continue; |
853 | ||
b35a51c7 VT |
854 | if (c->dfs_state == NL80211_DFS_UNAVAILABLE) { |
855 | time_dfs_update = IEEE80211_DFS_MIN_NOP_TIME_MS; | |
856 | radar_event = NL80211_RADAR_NOP_FINISHED; | |
857 | } else { | |
858 | if (regulatory_pre_cac_allowed(wiphy) || | |
859 | cfg80211_any_wiphy_oper_chan(wiphy, c)) | |
860 | continue; | |
861 | ||
862 | time_dfs_update = REG_PRE_CAC_EXPIRY_GRACE_MS; | |
863 | radar_event = NL80211_RADAR_PRE_CAC_EXPIRED; | |
864 | } | |
865 | ||
866 | timeout = c->dfs_state_entered + | |
867 | msecs_to_jiffies(time_dfs_update); | |
04f39047 SW |
868 | |
869 | if (time_after_eq(jiffies, timeout)) { | |
870 | c->dfs_state = NL80211_DFS_USABLE; | |
bbe09bbc MK |
871 | c->dfs_state_entered = jiffies; |
872 | ||
04f39047 SW |
873 | cfg80211_chandef_create(&chandef, c, |
874 | NL80211_CHAN_NO_HT); | |
875 | ||
876 | nl80211_radar_notify(rdev, &chandef, | |
b35a51c7 VT |
877 | radar_event, NULL, |
878 | GFP_ATOMIC); | |
89766727 VT |
879 | |
880 | regulatory_propagate_dfs_state(wiphy, &chandef, | |
881 | c->dfs_state, | |
882 | radar_event); | |
04f39047 SW |
883 | continue; |
884 | } | |
885 | ||
886 | if (!check_again) | |
887 | next_time = timeout - jiffies; | |
888 | else | |
889 | next_time = min(next_time, timeout - jiffies); | |
890 | check_again = true; | |
891 | } | |
892 | } | |
5fe231e8 | 893 | rtnl_unlock(); |
04f39047 SW |
894 | |
895 | /* reschedule if there are other channels waiting to be cleared again */ | |
896 | if (check_again) | |
897 | queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, | |
898 | next_time); | |
899 | } | |
900 | ||
901 | ||
902 | void cfg80211_radar_event(struct wiphy *wiphy, | |
903 | struct cfg80211_chan_def *chandef, | |
904 | gfp_t gfp) | |
905 | { | |
f26cbf40 | 906 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
04f39047 SW |
907 | |
908 | trace_cfg80211_radar_event(wiphy, chandef); | |
909 | ||
910 | /* only set the chandef supplied channel to unavailable, in | |
911 | * case the radar is detected on only one of multiple channels | |
912 | * spanned by the chandef. | |
913 | */ | |
914 | cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE); | |
915 | ||
b35a51c7 | 916 | cfg80211_sched_dfs_chan_update(rdev); |
04f39047 SW |
917 | |
918 | nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp); | |
89766727 VT |
919 | |
920 | memcpy(&rdev->radar_chandef, chandef, sizeof(struct cfg80211_chan_def)); | |
921 | queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk); | |
04f39047 SW |
922 | } |
923 | EXPORT_SYMBOL(cfg80211_radar_event); | |
924 | ||
925 | void cfg80211_cac_event(struct net_device *netdev, | |
d2859df5 | 926 | const struct cfg80211_chan_def *chandef, |
04f39047 SW |
927 | enum nl80211_radar_event event, gfp_t gfp) |
928 | { | |
929 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
930 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 931 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
04f39047 SW |
932 | unsigned long timeout; |
933 | ||
934 | trace_cfg80211_cac_event(netdev, event); | |
935 | ||
85096451 | 936 | if (WARN_ON(!wdev->cac_started && event != NL80211_RADAR_CAC_STARTED)) |
04f39047 SW |
937 | return; |
938 | ||
9e0e2961 | 939 | if (WARN_ON(!wdev->chandef.chan)) |
04f39047 SW |
940 | return; |
941 | ||
04f39047 SW |
942 | switch (event) { |
943 | case NL80211_RADAR_CAC_FINISHED: | |
944 | timeout = wdev->cac_start_time + | |
31559f35 | 945 | msecs_to_jiffies(wdev->cac_time_ms); |
04f39047 | 946 | WARN_ON(!time_after_eq(jiffies, timeout)); |
d2859df5 | 947 | cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE); |
89766727 VT |
948 | memcpy(&rdev->cac_done_chandef, chandef, |
949 | sizeof(struct cfg80211_chan_def)); | |
950 | queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk); | |
b35a51c7 | 951 | cfg80211_sched_dfs_chan_update(rdev); |
7b506ff6 | 952 | fallthrough; |
04f39047 | 953 | case NL80211_RADAR_CAC_ABORTED: |
2cb021f5 DL |
954 | wdev->cac_started = false; |
955 | break; | |
956 | case NL80211_RADAR_CAC_STARTED: | |
957 | wdev->cac_started = true; | |
04f39047 SW |
958 | break; |
959 | default: | |
960 | WARN_ON(1); | |
961 | return; | |
962 | } | |
04f39047 | 963 | |
d2859df5 | 964 | nl80211_radar_notify(rdev, chandef, event, netdev, gfp); |
04f39047 SW |
965 | } |
966 | EXPORT_SYMBOL(cfg80211_cac_event); |