Commit | Line | Data |
---|---|---|
b23aa676 | 1 | /* |
ceca7b71 JB |
2 | * SME code for cfg80211 |
3 | * both driver SME event handling and the SME implementation | |
4 | * (for nl80211's connect() and wext) | |
b23aa676 SO |
5 | * |
6 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
7 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
8 | */ | |
9 | ||
10 | #include <linux/etherdevice.h> | |
11 | #include <linux/if_arp.h> | |
5a0e3ad6 | 12 | #include <linux/slab.h> |
b23aa676 | 13 | #include <linux/workqueue.h> |
a9a11622 | 14 | #include <linux/wireless.h> |
bc3b2d7f | 15 | #include <linux/export.h> |
a9a11622 | 16 | #include <net/iw_handler.h> |
b23aa676 SO |
17 | #include <net/cfg80211.h> |
18 | #include <net/rtnetlink.h> | |
19 | #include "nl80211.h" | |
8b19e6ca | 20 | #include "reg.h" |
e35e4d28 | 21 | #include "rdev-ops.h" |
b23aa676 | 22 | |
ceca7b71 JB |
23 | /* |
24 | * Software SME in cfg80211, using auth/assoc/deauth calls to the | |
25 | * driver. This is is for implementing nl80211's connect/disconnect | |
26 | * and wireless extensions (if configured.) | |
27 | */ | |
28 | ||
6829c878 JB |
29 | struct cfg80211_conn { |
30 | struct cfg80211_connect_params params; | |
31 | /* these are sub-states of the _CONNECTING sme_state */ | |
32 | enum { | |
6829c878 JB |
33 | CFG80211_CONN_SCANNING, |
34 | CFG80211_CONN_SCAN_AGAIN, | |
35 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
36 | CFG80211_CONN_AUTHENTICATING, | |
923a0e7d | 37 | CFG80211_CONN_AUTH_FAILED, |
6829c878 JB |
38 | CFG80211_CONN_ASSOCIATE_NEXT, |
39 | CFG80211_CONN_ASSOCIATING, | |
923a0e7d | 40 | CFG80211_CONN_ASSOC_FAILED, |
ceca7b71 | 41 | CFG80211_CONN_DEAUTH, |
e6f462df | 42 | CFG80211_CONN_ABANDON, |
ceca7b71 | 43 | CFG80211_CONN_CONNECTED, |
6829c878 | 44 | } state; |
f401a6f7 | 45 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
46b9d180 | 46 | const u8 *ie; |
6829c878 | 47 | size_t ie_len; |
f401a6f7 | 48 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
49 | }; |
50 | ||
ceca7b71 | 51 | static void cfg80211_sme_free(struct wireless_dev *wdev) |
09d989d1 | 52 | { |
ceca7b71 JB |
53 | if (!wdev->conn) |
54 | return; | |
09d989d1 | 55 | |
ceca7b71 JB |
56 | kfree(wdev->conn->ie); |
57 | kfree(wdev->conn); | |
58 | wdev->conn = NULL; | |
09d989d1 LR |
59 | } |
60 | ||
6829c878 JB |
61 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
62 | { | |
f26cbf40 | 63 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 JB |
64 | struct cfg80211_scan_request *request; |
65 | int n_channels, err; | |
66 | ||
67 | ASSERT_RTNL(); | |
667503dd | 68 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 69 | |
f9d15d16 | 70 | if (rdev->scan_req || rdev->scan_msg) |
6829c878 JB |
71 | return -EBUSY; |
72 | ||
bdfbec2d | 73 | if (wdev->conn->params.channel) |
6829c878 | 74 | n_channels = 1; |
bdfbec2d IP |
75 | else |
76 | n_channels = ieee80211_get_num_supported_channels(wdev->wiphy); | |
6829c878 | 77 | |
6829c878 JB |
78 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
79 | sizeof(request->channels[0]) * n_channels, | |
80 | GFP_KERNEL); | |
81 | if (!request) | |
82 | return -ENOMEM; | |
83 | ||
2a84ee86 | 84 | if (wdev->conn->params.channel) { |
57fbcce3 | 85 | enum nl80211_band band = wdev->conn->params.channel->band; |
2a84ee86 KB |
86 | struct ieee80211_supported_band *sband = |
87 | wdev->wiphy->bands[band]; | |
88 | ||
89 | if (!sband) { | |
90 | kfree(request); | |
91 | return -EINVAL; | |
92 | } | |
6829c878 | 93 | request->channels[0] = wdev->conn->params.channel; |
2a84ee86 KB |
94 | request->rates[band] = (1 << sband->n_bitrates) - 1; |
95 | } else { | |
6829c878 | 96 | int i = 0, j; |
57fbcce3 | 97 | enum nl80211_band band; |
e3081501 RM |
98 | struct ieee80211_supported_band *bands; |
99 | struct ieee80211_channel *channel; | |
6829c878 | 100 | |
57fbcce3 | 101 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
e3081501 RM |
102 | bands = wdev->wiphy->bands[band]; |
103 | if (!bands) | |
6829c878 | 104 | continue; |
e3081501 RM |
105 | for (j = 0; j < bands->n_channels; j++) { |
106 | channel = &bands->channels[j]; | |
107 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
108 | continue; | |
109 | request->channels[i++] = channel; | |
110 | } | |
111 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 112 | } |
e3081501 | 113 | n_channels = i; |
6829c878 JB |
114 | } |
115 | request->n_channels = n_channels; | |
5ba63533 | 116 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
117 | request->n_ssids = 1; |
118 | ||
119 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
120 | wdev->conn->params.ssid_len); | |
121 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
122 | ||
818965d3 JM |
123 | eth_broadcast_addr(request->bssid); |
124 | ||
fd014284 | 125 | request->wdev = wdev; |
79c97e97 | 126 | request->wiphy = &rdev->wiphy; |
15d6030b | 127 | request->scan_start = jiffies; |
6829c878 | 128 | |
79c97e97 | 129 | rdev->scan_req = request; |
6829c878 | 130 | |
e35e4d28 | 131 | err = rdev_scan(rdev, request); |
6829c878 JB |
132 | if (!err) { |
133 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 134 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 135 | dev_hold(wdev->netdev); |
6829c878 | 136 | } else { |
79c97e97 | 137 | rdev->scan_req = NULL; |
6829c878 JB |
138 | kfree(request); |
139 | } | |
140 | return err; | |
141 | } | |
142 | ||
143 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
144 | { | |
f26cbf40 | 145 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
19957bb3 | 146 | struct cfg80211_connect_params *params; |
f62fab73 | 147 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 148 | int err; |
6829c878 | 149 | |
667503dd JB |
150 | ASSERT_WDEV_LOCK(wdev); |
151 | ||
6829c878 JB |
152 | if (!wdev->conn) |
153 | return 0; | |
154 | ||
19957bb3 JB |
155 | params = &wdev->conn->params; |
156 | ||
6829c878 | 157 | switch (wdev->conn->state) { |
ceca7b71 JB |
158 | case CFG80211_CONN_SCANNING: |
159 | /* didn't find it during scan ... */ | |
160 | return -ENOENT; | |
6829c878 JB |
161 | case CFG80211_CONN_SCAN_AGAIN: |
162 | return cfg80211_conn_scan(wdev); | |
163 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
2fd05115 JB |
164 | if (WARN_ON(!rdev->ops->auth)) |
165 | return -EOPNOTSUPP; | |
19957bb3 | 166 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
167 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
168 | params->channel, params->auth_type, | |
169 | params->bssid, | |
170 | params->ssid, params->ssid_len, | |
171 | NULL, 0, | |
172 | params->key, params->key_len, | |
173 | params->key_idx, NULL, 0); | |
923a0e7d JB |
174 | case CFG80211_CONN_AUTH_FAILED: |
175 | return -ENOTCONN; | |
6829c878 | 176 | case CFG80211_CONN_ASSOCIATE_NEXT: |
2fd05115 JB |
177 | if (WARN_ON(!rdev->ops->assoc)) |
178 | return -EOPNOTSUPP; | |
19957bb3 | 179 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 180 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
181 | req.prev_bssid = wdev->conn->prev_bssid; |
182 | req.ie = params->ie; | |
183 | req.ie_len = params->ie_len; | |
184 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
185 | req.crypto = params->crypto; | |
186 | req.flags = params->flags; | |
187 | req.ht_capa = params->ht_capa; | |
188 | req.ht_capa_mask = params->ht_capa_mask; | |
189 | req.vht_capa = params->vht_capa; | |
190 | req.vht_capa_mask = params->vht_capa_mask; | |
191 | ||
91bf9b26 JB |
192 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
193 | params->bssid, params->ssid, | |
194 | params->ssid_len, &req); | |
19957bb3 | 195 | if (err) |
91bf9b26 JB |
196 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
197 | NULL, 0, | |
198 | WLAN_REASON_DEAUTH_LEAVING, | |
199 | false); | |
19957bb3 | 200 | return err; |
923a0e7d JB |
201 | case CFG80211_CONN_ASSOC_FAILED: |
202 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
203 | NULL, 0, | |
204 | WLAN_REASON_DEAUTH_LEAVING, false); | |
205 | return -ENOTCONN; | |
ceca7b71 | 206 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
207 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
208 | NULL, 0, | |
209 | WLAN_REASON_DEAUTH_LEAVING, false); | |
e6f462df JB |
210 | /* fall through */ |
211 | case CFG80211_CONN_ABANDON: | |
923a0e7d JB |
212 | /* free directly, disconnected event already sent */ |
213 | cfg80211_sme_free(wdev); | |
ceca7b71 | 214 | return 0; |
6829c878 JB |
215 | default: |
216 | return 0; | |
217 | } | |
218 | } | |
219 | ||
220 | void cfg80211_conn_work(struct work_struct *work) | |
221 | { | |
79c97e97 | 222 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
223 | container_of(work, struct cfg80211_registered_device, conn_work); |
224 | struct wireless_dev *wdev; | |
7400f42e | 225 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
226 | |
227 | rtnl_lock(); | |
6829c878 | 228 | |
53873f13 | 229 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
c8157976 JB |
230 | if (!wdev->netdev) |
231 | continue; | |
232 | ||
667503dd JB |
233 | wdev_lock(wdev); |
234 | if (!netif_running(wdev->netdev)) { | |
235 | wdev_unlock(wdev); | |
6829c878 | 236 | continue; |
667503dd | 237 | } |
ceca7b71 JB |
238 | if (!wdev->conn || |
239 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 240 | wdev_unlock(wdev); |
6829c878 | 241 | continue; |
667503dd | 242 | } |
7400f42e JB |
243 | if (wdev->conn->params.bssid) { |
244 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
245 | bssid = bssid_buf; | |
246 | } | |
ceca7b71 | 247 | if (cfg80211_conn_do_work(wdev)) { |
667503dd | 248 | __cfg80211_connect_result( |
7d930bc3 | 249 | wdev->netdev, bssid, |
bf1ecd21 | 250 | NULL, 0, NULL, 0, -1, false, NULL); |
ceca7b71 | 251 | } |
667503dd | 252 | wdev_unlock(wdev); |
6829c878 JB |
253 | } |
254 | ||
6829c878 JB |
255 | rtnl_unlock(); |
256 | } | |
257 | ||
0e3a39b5 | 258 | /* Returned bss is reference counted and must be cleaned up appropriately. */ |
bbac31f4 | 259 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 260 | { |
f26cbf40 | 261 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 262 | struct cfg80211_bss *bss; |
6829c878 | 263 | |
667503dd JB |
264 | ASSERT_WDEV_LOCK(wdev); |
265 | ||
ed9d0102 JM |
266 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
267 | wdev->conn->params.bssid, | |
6829c878 JB |
268 | wdev->conn->params.ssid, |
269 | wdev->conn->params.ssid_len, | |
34d50519 | 270 | wdev->conn_bss_type, |
6eb18137 | 271 | IEEE80211_PRIVACY(wdev->conn->params.privacy)); |
6829c878 | 272 | if (!bss) |
bbac31f4 | 273 | return NULL; |
6829c878 JB |
274 | |
275 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
276 | wdev->conn->params.bssid = wdev->conn->bssid; | |
277 | wdev->conn->params.channel = bss->channel; | |
278 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 279 | schedule_work(&rdev->conn_work); |
6829c878 | 280 | |
bbac31f4 | 281 | return bss; |
6829c878 JB |
282 | } |
283 | ||
667503dd | 284 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
285 | { |
286 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 287 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 288 | struct cfg80211_bss *bss; |
6829c878 | 289 | |
667503dd JB |
290 | ASSERT_WDEV_LOCK(wdev); |
291 | ||
d4b1a687 | 292 | if (!wdev->conn) |
6829c878 JB |
293 | return; |
294 | ||
295 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
296 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
297 | return; | |
298 | ||
bbac31f4 | 299 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 300 | if (bss) |
5b112d3d | 301 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
302 | else |
303 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
304 | } |
305 | ||
667503dd JB |
306 | void cfg80211_sme_scan_done(struct net_device *dev) |
307 | { | |
308 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
309 | ||
310 | wdev_lock(wdev); | |
311 | __cfg80211_sme_scan_done(dev); | |
312 | wdev_unlock(wdev); | |
313 | } | |
314 | ||
ceca7b71 | 315 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 316 | { |
6829c878 | 317 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 318 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
319 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
320 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
321 | ||
667503dd JB |
322 | ASSERT_WDEV_LOCK(wdev); |
323 | ||
ceca7b71 | 324 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
325 | return; |
326 | ||
327 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
328 | wdev->conn->auto_auth && | |
329 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
330 | /* select automatically between only open, shared, leap */ | |
331 | switch (wdev->conn->params.auth_type) { | |
332 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
333 | if (wdev->connect_keys) |
334 | wdev->conn->params.auth_type = | |
335 | NL80211_AUTHTYPE_SHARED_KEY; | |
336 | else | |
337 | wdev->conn->params.auth_type = | |
338 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
339 | break; |
340 | case NL80211_AUTHTYPE_SHARED_KEY: | |
341 | wdev->conn->params.auth_type = | |
342 | NL80211_AUTHTYPE_NETWORK_EAP; | |
343 | break; | |
344 | default: | |
345 | /* huh? */ | |
346 | wdev->conn->params.auth_type = | |
347 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
348 | break; | |
349 | } | |
350 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
351 | schedule_work(&rdev->conn_work); | |
19957bb3 | 352 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
353 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
354 | NULL, 0, NULL, 0, | |
df7fc0f9 | 355 | status_code, false, NULL); |
ceca7b71 | 356 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
357 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
358 | schedule_work(&rdev->conn_work); | |
359 | } | |
360 | } | |
b23aa676 | 361 | |
ceca7b71 | 362 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 363 | { |
f26cbf40 | 364 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 365 | |
ceca7b71 | 366 | if (!wdev->conn) |
f401a6f7 JB |
367 | return false; |
368 | ||
ceca7b71 JB |
369 | if (status == WLAN_STATUS_SUCCESS) { |
370 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 371 | return false; |
ceca7b71 | 372 | } |
f401a6f7 | 373 | |
ceca7b71 JB |
374 | if (wdev->conn->prev_bssid_valid) { |
375 | /* | |
376 | * Some stupid APs don't accept reassoc, so we | |
377 | * need to fall back to trying regular assoc; | |
378 | * return true so no event is sent to userspace. | |
379 | */ | |
380 | wdev->conn->prev_bssid_valid = false; | |
381 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
382 | schedule_work(&rdev->conn_work); | |
383 | return true; | |
384 | } | |
385 | ||
923a0e7d | 386 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 387 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
388 | return false; |
389 | } | |
f401a6f7 | 390 | |
ceca7b71 JB |
391 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
392 | { | |
393 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
394 | } |
395 | ||
ceca7b71 | 396 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 397 | { |
f26cbf40 | 398 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
399 | |
400 | if (!wdev->conn) | |
401 | return; | |
402 | ||
403 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED; | |
404 | schedule_work(&rdev->conn_work); | |
ceca7b71 | 405 | } |
7d930bc3 | 406 | |
ceca7b71 JB |
407 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
408 | { | |
f26cbf40 | 409 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
410 | |
411 | if (!wdev->conn) | |
412 | return; | |
413 | ||
414 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
415 | schedule_work(&rdev->conn_work); |
416 | } | |
417 | ||
ceca7b71 JB |
418 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
419 | { | |
f26cbf40 | 420 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
421 | |
422 | if (!wdev->conn) | |
423 | return; | |
424 | ||
425 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; | |
426 | schedule_work(&rdev->conn_work); | |
ceca7b71 JB |
427 | } |
428 | ||
e6f462df JB |
429 | void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev) |
430 | { | |
431 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
432 | ||
433 | if (!wdev->conn) | |
434 | return; | |
435 | ||
436 | wdev->conn->state = CFG80211_CONN_ABANDON; | |
437 | schedule_work(&rdev->conn_work); | |
438 | } | |
439 | ||
46b9d180 JB |
440 | static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev, |
441 | const u8 *ies, size_t ies_len, | |
442 | const u8 **out_ies, size_t *out_ies_len) | |
443 | { | |
444 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
445 | u8 *buf; | |
446 | size_t offs; | |
447 | ||
448 | if (!rdev->wiphy.extended_capabilities_len || | |
449 | (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) { | |
450 | *out_ies = kmemdup(ies, ies_len, GFP_KERNEL); | |
451 | if (!*out_ies) | |
452 | return -ENOMEM; | |
453 | *out_ies_len = ies_len; | |
454 | return 0; | |
455 | } | |
456 | ||
457 | buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2, | |
458 | GFP_KERNEL); | |
459 | if (!buf) | |
460 | return -ENOMEM; | |
461 | ||
462 | if (ies_len) { | |
463 | static const u8 before_extcapa[] = { | |
464 | /* not listing IEs expected to be created by driver */ | |
465 | WLAN_EID_RSN, | |
466 | WLAN_EID_QOS_CAPA, | |
467 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
468 | WLAN_EID_MOBILITY_DOMAIN, | |
469 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
470 | WLAN_EID_BSS_COEX_2040, | |
471 | }; | |
472 | ||
473 | offs = ieee80211_ie_split(ies, ies_len, before_extcapa, | |
474 | ARRAY_SIZE(before_extcapa), 0); | |
475 | memcpy(buf, ies, offs); | |
476 | /* leave a whole for extended capabilities IE */ | |
477 | memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2, | |
478 | ies + offs, ies_len - offs); | |
479 | } else { | |
480 | offs = 0; | |
481 | } | |
482 | ||
483 | /* place extended capabilities IE (with only driver capabilities) */ | |
484 | buf[offs] = WLAN_EID_EXT_CAPABILITY; | |
485 | buf[offs + 1] = rdev->wiphy.extended_capabilities_len; | |
486 | memcpy(buf + offs + 2, | |
487 | rdev->wiphy.extended_capabilities, | |
488 | rdev->wiphy.extended_capabilities_len); | |
489 | ||
490 | *out_ies = buf; | |
491 | *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2; | |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
ceca7b71 JB |
496 | static int cfg80211_sme_connect(struct wireless_dev *wdev, |
497 | struct cfg80211_connect_params *connect, | |
498 | const u8 *prev_bssid) | |
499 | { | |
f26cbf40 | 500 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
501 | struct cfg80211_bss *bss; |
502 | int err; | |
503 | ||
504 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
505 | return -EOPNOTSUPP; | |
506 | ||
4ce2bd9c JM |
507 | if (wdev->current_bss) { |
508 | if (!prev_bssid) | |
509 | return -EALREADY; | |
510 | if (prev_bssid && | |
511 | !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid)) | |
512 | return -ENOTCONN; | |
513 | cfg80211_unhold_bss(wdev->current_bss); | |
514 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); | |
515 | wdev->current_bss = NULL; | |
516 | ||
517 | cfg80211_sme_free(wdev); | |
518 | } | |
ceca7b71 JB |
519 | |
520 | if (WARN_ON(wdev->conn)) | |
521 | return -EINPROGRESS; | |
522 | ||
523 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
524 | if (!wdev->conn) | |
525 | return -ENOMEM; | |
526 | ||
527 | /* | |
528 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
529 | */ | |
530 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
531 | if (connect->bssid) { | |
532 | wdev->conn->params.bssid = wdev->conn->bssid; | |
533 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
534 | } | |
535 | ||
46b9d180 JB |
536 | if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len, |
537 | &wdev->conn->ie, | |
538 | &wdev->conn->params.ie_len)) { | |
539 | kfree(wdev->conn); | |
540 | wdev->conn = NULL; | |
541 | return -ENOMEM; | |
ceca7b71 | 542 | } |
46b9d180 | 543 | wdev->conn->params.ie = wdev->conn->ie; |
ceca7b71 JB |
544 | |
545 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
546 | wdev->conn->auto_auth = true; | |
547 | /* start with open system ... should mostly work */ | |
548 | wdev->conn->params.auth_type = | |
549 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
550 | } else { | |
551 | wdev->conn->auto_auth = false; | |
552 | } | |
553 | ||
554 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 555 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
556 | |
557 | /* see if we have the bss already */ | |
558 | bss = cfg80211_get_conn_bss(wdev); | |
559 | ||
560 | if (prev_bssid) { | |
561 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
562 | wdev->conn->prev_bssid_valid = true; | |
563 | } | |
564 | ||
565 | /* we're good if we have a matching bss struct */ | |
566 | if (bss) { | |
ceca7b71 JB |
567 | err = cfg80211_conn_do_work(wdev); |
568 | cfg80211_put_bss(wdev->wiphy, bss); | |
569 | } else { | |
570 | /* otherwise we'll need to scan for the AP first */ | |
571 | err = cfg80211_conn_scan(wdev); | |
572 | ||
573 | /* | |
574 | * If we can't scan right now, then we need to scan again | |
575 | * after the current scan finished, since the parameters | |
576 | * changed (unless we find a good AP anyway). | |
577 | */ | |
578 | if (err == -EBUSY) { | |
579 | err = 0; | |
580 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
581 | } | |
582 | } | |
583 | ||
584 | if (err) | |
585 | cfg80211_sme_free(wdev); | |
586 | ||
587 | return err; | |
588 | } | |
589 | ||
590 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
591 | { | |
f26cbf40 | 592 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
593 | int err; |
594 | ||
595 | if (!wdev->conn) | |
596 | return 0; | |
597 | ||
598 | if (!rdev->ops->deauth) | |
599 | return -EOPNOTSUPP; | |
600 | ||
601 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
602 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
603 | err = 0; | |
604 | goto out; | |
605 | } | |
606 | ||
607 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
608 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
609 | wdev->conn->params.bssid, | |
610 | NULL, 0, reason, false); | |
611 | out: | |
612 | cfg80211_sme_free(wdev); | |
613 | return err; | |
614 | } | |
615 | ||
616 | /* | |
617 | * code shared for in-device and software SME | |
618 | */ | |
619 | ||
620 | static bool cfg80211_is_all_idle(void) | |
621 | { | |
622 | struct cfg80211_registered_device *rdev; | |
623 | struct wireless_dev *wdev; | |
624 | bool is_all_idle = true; | |
625 | ||
626 | /* | |
627 | * All devices must be idle as otherwise if you are actively | |
628 | * scanning some new beacon hints could be learned and would | |
629 | * count as new regulatory hints. | |
630 | */ | |
631 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
53873f13 | 632 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
ceca7b71 JB |
633 | wdev_lock(wdev); |
634 | if (wdev->conn || wdev->current_bss) | |
635 | is_all_idle = false; | |
636 | wdev_unlock(wdev); | |
637 | } | |
638 | } | |
639 | ||
640 | return is_all_idle; | |
641 | } | |
642 | ||
643 | static void disconnect_work(struct work_struct *work) | |
644 | { | |
645 | rtnl_lock(); | |
646 | if (cfg80211_is_all_idle()) | |
647 | regulatory_hint_disconnect(); | |
648 | rtnl_unlock(); | |
649 | } | |
650 | ||
651 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
652 | ||
653 | ||
654 | /* | |
655 | * API calls for drivers implementing connect/disconnect and | |
656 | * SME event handling | |
657 | */ | |
658 | ||
6f390908 | 659 | /* This method must consume bss one way or another */ |
667503dd JB |
660 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
661 | const u8 *req_ie, size_t req_ie_len, | |
662 | const u8 *resp_ie, size_t resp_ie_len, | |
bf1ecd21 | 663 | int status, bool wextev, |
df7fc0f9 | 664 | struct cfg80211_bss *bss) |
b23aa676 SO |
665 | { |
666 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 667 | const u8 *country_ie; |
3d23e349 | 668 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
669 | union iwreq_data wrqu; |
670 | #endif | |
671 | ||
667503dd JB |
672 | ASSERT_WDEV_LOCK(wdev); |
673 | ||
074ac8df | 674 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
675 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
676 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 677 | return; |
6f390908 | 678 | } |
b23aa676 | 679 | |
f26cbf40 | 680 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, |
e45cd82a | 681 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
682 | resp_ie, resp_ie_len, |
683 | status, GFP_KERNEL); | |
e45cd82a | 684 | |
3d23e349 | 685 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
686 | if (wextev) { |
687 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
688 | memset(&wrqu, 0, sizeof(wrqu)); | |
689 | wrqu.data.length = req_ie_len; | |
3409ff77 | 690 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
691 | } |
692 | ||
693 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
694 | memset(&wrqu, 0, sizeof(wrqu)); | |
695 | wrqu.data.length = resp_ie_len; | |
696 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
697 | } | |
698 | ||
699 | memset(&wrqu, 0, sizeof(wrqu)); | |
700 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 701 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 702 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
703 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
704 | wdev->wext.prev_bssid_valid = true; | |
705 | } | |
e45cd82a JB |
706 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
707 | } | |
708 | #endif | |
709 | ||
4c4d684a | 710 | if (!bss && (status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 711 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
4c4d684a UR |
712 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
713 | wdev->ssid, wdev->ssid_len, | |
34d50519 | 714 | wdev->conn_bss_type, |
6eb18137 | 715 | IEEE80211_PRIVACY_ANY); |
4c4d684a UR |
716 | if (bss) |
717 | cfg80211_hold_bss(bss_from_pub(bss)); | |
718 | } | |
719 | ||
df7fc0f9 JB |
720 | if (wdev->current_bss) { |
721 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 722 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
723 | wdev->current_bss = NULL; |
724 | } | |
725 | ||
fffd0934 | 726 | if (status != WLAN_STATUS_SUCCESS) { |
b47f610b | 727 | kzfree(wdev->connect_keys); |
fffd0934 | 728 | wdev->connect_keys = NULL; |
8dadadb7 | 729 | wdev->ssid_len = 0; |
f1940c57 JB |
730 | if (bss) { |
731 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
732 | cfg80211_put_bss(wdev->wiphy, bss); | |
733 | } | |
c1fbb258 | 734 | cfg80211_sme_free(wdev); |
fffd0934 | 735 | return; |
b23aa676 | 736 | } |
fffd0934 | 737 | |
4c4d684a UR |
738 | if (WARN_ON(!bss)) |
739 | return; | |
fffd0934 | 740 | |
fffd0934 JB |
741 | wdev->current_bss = bss_from_pub(bss); |
742 | ||
b8676221 DS |
743 | if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP)) |
744 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca | 745 | |
9caf0364 JB |
746 | rcu_read_lock(); |
747 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
748 | if (!country_ie) { | |
749 | rcu_read_unlock(); | |
750 | return; | |
751 | } | |
752 | ||
753 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
754 | rcu_read_unlock(); | |
8b19e6ca LR |
755 | |
756 | if (!country_ie) | |
757 | return; | |
758 | ||
759 | /* | |
760 | * ieee80211_bss_get_ie() ensures we can access: | |
761 | * - country_ie + 2, the start of the country ie data, and | |
762 | * - and country_ie[1] which is the IE length | |
763 | */ | |
789fd033 LR |
764 | regulatory_hint_country_ie(wdev->wiphy, bss->channel->band, |
765 | country_ie + 2, country_ie[1]); | |
9caf0364 | 766 | kfree(country_ie); |
b23aa676 | 767 | } |
f2129354 | 768 | |
e7054989 KV |
769 | /* Consumes bss object one way or another */ |
770 | void cfg80211_connect_bss(struct net_device *dev, const u8 *bssid, | |
771 | struct cfg80211_bss *bss, const u8 *req_ie, | |
772 | size_t req_ie_len, const u8 *resp_ie, | |
bf1ecd21 | 773 | size_t resp_ie_len, int status, gfp_t gfp) |
f2129354 | 774 | { |
667503dd | 775 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 776 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
777 | struct cfg80211_event *ev; |
778 | unsigned long flags; | |
779 | ||
e7054989 KV |
780 | if (bss) { |
781 | /* Make sure the bss entry provided by the driver is valid. */ | |
782 | struct cfg80211_internal_bss *ibss = bss_from_pub(bss); | |
783 | ||
784 | if (WARN_ON(list_empty(&ibss->list))) { | |
785 | cfg80211_put_bss(wdev->wiphy, bss); | |
786 | return; | |
787 | } | |
788 | } | |
789 | ||
667503dd | 790 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
e7054989 KV |
791 | if (!ev) { |
792 | cfg80211_put_bss(wdev->wiphy, bss); | |
667503dd | 793 | return; |
e7054989 | 794 | } |
667503dd JB |
795 | |
796 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
797 | if (bssid) |
798 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
799 | if (req_ie_len) { |
800 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
801 | ev->cr.req_ie_len = req_ie_len; | |
802 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
803 | } | |
804 | if (resp_ie_len) { | |
805 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
806 | ev->cr.resp_ie_len = resp_ie_len; | |
807 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
808 | } | |
e7054989 KV |
809 | if (bss) |
810 | cfg80211_hold_bss(bss_from_pub(bss)); | |
811 | ev->cr.bss = bss; | |
667503dd JB |
812 | ev->cr.status = status; |
813 | ||
814 | spin_lock_irqsave(&wdev->event_lock, flags); | |
815 | list_add_tail(&ev->list, &wdev->event_list); | |
816 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 817 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 818 | } |
e7054989 | 819 | EXPORT_SYMBOL(cfg80211_connect_bss); |
b23aa676 | 820 | |
0e3a39b5 | 821 | /* Consumes bss object one way or another */ |
ed9d0102 | 822 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 823 | struct cfg80211_bss *bss, |
667503dd JB |
824 | const u8 *req_ie, size_t req_ie_len, |
825 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 826 | { |
3d23e349 | 827 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
828 | union iwreq_data wrqu; |
829 | #endif | |
667503dd JB |
830 | ASSERT_WDEV_LOCK(wdev); |
831 | ||
074ac8df JB |
832 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
833 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 834 | goto out; |
b23aa676 | 835 | |
ceca7b71 | 836 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 837 | goto out; |
b23aa676 SO |
838 | |
839 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 840 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
841 | wdev->current_bss = NULL; |
842 | ||
19957bb3 JB |
843 | cfg80211_hold_bss(bss_from_pub(bss)); |
844 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 845 | |
f26cbf40 ZG |
846 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
847 | wdev->netdev, bss->bssid, | |
667503dd JB |
848 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
849 | GFP_KERNEL); | |
b23aa676 | 850 | |
3d23e349 | 851 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
852 | if (req_ie) { |
853 | memset(&wrqu, 0, sizeof(wrqu)); | |
854 | wrqu.data.length = req_ie_len; | |
3409ff77 | 855 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 856 | &wrqu, req_ie); |
b23aa676 SO |
857 | } |
858 | ||
859 | if (resp_ie) { | |
860 | memset(&wrqu, 0, sizeof(wrqu)); | |
861 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
862 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
863 | &wrqu, resp_ie); | |
b23aa676 SO |
864 | } |
865 | ||
866 | memset(&wrqu, 0, sizeof(wrqu)); | |
867 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
868 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
869 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 870 | wdev->wext.prev_bssid_valid = true; |
667503dd | 871 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 872 | #endif |
adbde344 VT |
873 | |
874 | return; | |
875 | out: | |
5b112d3d | 876 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 877 | } |
667503dd | 878 | |
ed9d0102 JM |
879 | void cfg80211_roamed(struct net_device *dev, |
880 | struct ieee80211_channel *channel, | |
881 | const u8 *bssid, | |
667503dd JB |
882 | const u8 *req_ie, size_t req_ie_len, |
883 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
884 | { |
885 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
886 | struct cfg80211_bss *bss; | |
887 | ||
adbde344 | 888 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
6eb18137 | 889 | wdev->ssid_len, |
34d50519 | 890 | wdev->conn_bss_type, IEEE80211_PRIVACY_ANY); |
adbde344 VT |
891 | if (WARN_ON(!bss)) |
892 | return; | |
893 | ||
894 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
895 | resp_ie_len, gfp); | |
896 | } | |
897 | EXPORT_SYMBOL(cfg80211_roamed); | |
898 | ||
0e3a39b5 | 899 | /* Consumes bss object one way or another */ |
adbde344 VT |
900 | void cfg80211_roamed_bss(struct net_device *dev, |
901 | struct cfg80211_bss *bss, const u8 *req_ie, | |
902 | size_t req_ie_len, const u8 *resp_ie, | |
903 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
904 | { |
905 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 906 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
907 | struct cfg80211_event *ev; |
908 | unsigned long flags; | |
909 | ||
adbde344 VT |
910 | if (WARN_ON(!bss)) |
911 | return; | |
912 | ||
667503dd | 913 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 914 | if (!ev) { |
5b112d3d | 915 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 916 | return; |
adbde344 | 917 | } |
667503dd JB |
918 | |
919 | ev->type = EVENT_ROAMED; | |
667503dd JB |
920 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
921 | ev->rm.req_ie_len = req_ie_len; | |
922 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
923 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
924 | ev->rm.resp_ie_len = resp_ie_len; | |
925 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 926 | ev->rm.bss = bss; |
667503dd JB |
927 | |
928 | spin_lock_irqsave(&wdev->event_lock, flags); | |
929 | list_add_tail(&ev->list, &wdev->event_list); | |
930 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 931 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 932 | } |
adbde344 | 933 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 934 | |
667503dd | 935 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 936 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
937 | { |
938 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 939 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 940 | int i; |
3d23e349 | 941 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
942 | union iwreq_data wrqu; |
943 | #endif | |
944 | ||
667503dd JB |
945 | ASSERT_WDEV_LOCK(wdev); |
946 | ||
074ac8df JB |
947 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
948 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
949 | return; |
950 | ||
b23aa676 SO |
951 | if (wdev->current_bss) { |
952 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 953 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
954 | } |
955 | ||
956 | wdev->current_bss = NULL; | |
8dadadb7 | 957 | wdev->ssid_len = 0; |
b23aa676 | 958 | |
fffd0934 JB |
959 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
960 | ||
b8607152 AS |
961 | /* stop critical protocol if supported */ |
962 | if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) { | |
963 | rdev->crit_proto_nlportid = 0; | |
964 | rdev_crit_proto_stop(rdev, wdev); | |
965 | } | |
966 | ||
fffd0934 JB |
967 | /* |
968 | * Delete all the keys ... pairwise keys can't really | |
969 | * exist any more anyway, but default keys might. | |
970 | */ | |
971 | if (rdev->ops->del_key) | |
972 | for (i = 0; i < 6; i++) | |
e35e4d28 | 973 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 974 | |
fa9ffc74 KP |
975 | rdev_set_qos_map(rdev, dev, NULL); |
976 | ||
3d23e349 | 977 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
978 | memset(&wrqu, 0, sizeof(wrqu)); |
979 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
980 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 981 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 982 | #endif |
09d989d1 LR |
983 | |
984 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
985 | } |
986 | ||
987 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
80279fb7 JB |
988 | const u8 *ie, size_t ie_len, |
989 | bool locally_generated, gfp_t gfp) | |
b23aa676 | 990 | { |
667503dd | 991 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 992 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
993 | struct cfg80211_event *ev; |
994 | unsigned long flags; | |
995 | ||
996 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
997 | if (!ev) | |
998 | return; | |
999 | ||
1000 | ev->type = EVENT_DISCONNECTED; | |
1001 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
1002 | ev->dc.ie_len = ie_len; | |
1003 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
1004 | ev->dc.reason = reason; | |
80279fb7 | 1005 | ev->dc.locally_generated = locally_generated; |
667503dd JB |
1006 | |
1007 | spin_lock_irqsave(&wdev->event_lock, flags); | |
1008 | list_add_tail(&ev->list, &wdev->event_list); | |
1009 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 1010 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
1011 | } |
1012 | EXPORT_SYMBOL(cfg80211_disconnected); | |
1013 | ||
ceca7b71 JB |
1014 | /* |
1015 | * API calls for nl80211/wext compatibility code | |
1016 | */ | |
83739b03 JB |
1017 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
1018 | struct net_device *dev, | |
1019 | struct cfg80211_connect_params *connect, | |
1020 | struct cfg80211_cached_keys *connkeys, | |
1021 | const u8 *prev_bssid) | |
b23aa676 | 1022 | { |
b23aa676 | 1023 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
1024 | int err; |
1025 | ||
1026 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 1027 | |
fffd0934 | 1028 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 1029 | kzfree(wdev->connect_keys); |
fffd0934 JB |
1030 | wdev->connect_keys = NULL; |
1031 | } | |
1032 | ||
7e7c8926 BG |
1033 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
1034 | rdev->wiphy.ht_capa_mod_mask); | |
1035 | ||
fffd0934 JB |
1036 | if (connkeys && connkeys->def >= 0) { |
1037 | int idx; | |
bcba8eae | 1038 | u32 cipher; |
fffd0934 JB |
1039 | |
1040 | idx = connkeys->def; | |
bcba8eae | 1041 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 1042 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
1043 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
1044 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
1045 | connect->key_idx = idx; |
1046 | connect->key = connkeys->params[idx].key; | |
1047 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
1048 | |
1049 | /* | |
1050 | * If ciphers are not set (e.g. when going through | |
1051 | * iwconfig), we have to set them appropriately here. | |
1052 | */ | |
1053 | if (connect->crypto.cipher_group == 0) | |
1054 | connect->crypto.cipher_group = cipher; | |
1055 | ||
1056 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
1057 | connect->crypto.n_ciphers_pairwise = 1; | |
1058 | connect->crypto.ciphers_pairwise[0] = cipher; | |
1059 | } | |
fffd0934 | 1060 | } |
b8676221 DS |
1061 | |
1062 | connect->crypto.wep_keys = connkeys->params; | |
1063 | connect->crypto.wep_tx_key = connkeys->def; | |
f1c1f17a JB |
1064 | } else { |
1065 | if (WARN_ON(connkeys)) | |
1066 | return -EINVAL; | |
fffd0934 JB |
1067 | } |
1068 | ||
ceca7b71 JB |
1069 | wdev->connect_keys = connkeys; |
1070 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
1071 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 1072 | |
34d50519 LD |
1073 | wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS : |
1074 | IEEE80211_BSS_TYPE_ESS; | |
1075 | ||
ceca7b71 JB |
1076 | if (!rdev->ops->connect) |
1077 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
1078 | else | |
e35e4d28 | 1079 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 1080 | |
ceca7b71 JB |
1081 | if (err) { |
1082 | wdev->connect_keys = NULL; | |
1083 | wdev->ssid_len = 0; | |
1084 | return err; | |
6829c878 | 1085 | } |
ceca7b71 JB |
1086 | |
1087 | return 0; | |
b23aa676 SO |
1088 | } |
1089 | ||
83739b03 JB |
1090 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
1091 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 1092 | { |
6829c878 | 1093 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 1094 | int err = 0; |
b23aa676 | 1095 | |
667503dd JB |
1096 | ASSERT_WDEV_LOCK(wdev); |
1097 | ||
b47f610b | 1098 | kzfree(wdev->connect_keys); |
fffd0934 JB |
1099 | wdev->connect_keys = NULL; |
1100 | ||
dee8a973 | 1101 | if (wdev->conn) |
ceca7b71 | 1102 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 1103 | else if (!rdev->ops->disconnect) |
ceca7b71 | 1104 | cfg80211_mlme_down(rdev, dev); |
0711d638 | 1105 | else if (wdev->ssid_len) |
e35e4d28 | 1106 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 1107 | |
ceca7b71 | 1108 | return err; |
19957bb3 | 1109 | } |