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 JB |
41 | CFG80211_CONN_DEAUTH, |
42 | CFG80211_CONN_CONNECTED, | |
6829c878 | 43 | } state; |
f401a6f7 | 44 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
45 | u8 *ie; |
46 | size_t ie_len; | |
f401a6f7 | 47 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
48 | }; |
49 | ||
ceca7b71 | 50 | static void cfg80211_sme_free(struct wireless_dev *wdev) |
09d989d1 | 51 | { |
ceca7b71 JB |
52 | if (!wdev->conn) |
53 | return; | |
09d989d1 | 54 | |
ceca7b71 JB |
55 | kfree(wdev->conn->ie); |
56 | kfree(wdev->conn); | |
57 | wdev->conn = NULL; | |
09d989d1 LR |
58 | } |
59 | ||
6829c878 JB |
60 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
61 | { | |
f26cbf40 | 62 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 JB |
63 | struct cfg80211_scan_request *request; |
64 | int n_channels, err; | |
65 | ||
66 | ASSERT_RTNL(); | |
667503dd | 67 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 68 | |
f9d15d16 | 69 | if (rdev->scan_req || rdev->scan_msg) |
6829c878 JB |
70 | return -EBUSY; |
71 | ||
bdfbec2d | 72 | if (wdev->conn->params.channel) |
6829c878 | 73 | n_channels = 1; |
bdfbec2d IP |
74 | else |
75 | n_channels = ieee80211_get_num_supported_channels(wdev->wiphy); | |
6829c878 | 76 | |
6829c878 JB |
77 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
78 | sizeof(request->channels[0]) * n_channels, | |
79 | GFP_KERNEL); | |
80 | if (!request) | |
81 | return -ENOMEM; | |
82 | ||
6829c878 JB |
83 | if (wdev->conn->params.channel) |
84 | request->channels[0] = wdev->conn->params.channel; | |
85 | else { | |
86 | int i = 0, j; | |
87 | enum ieee80211_band band; | |
e3081501 RM |
88 | struct ieee80211_supported_band *bands; |
89 | struct ieee80211_channel *channel; | |
6829c878 JB |
90 | |
91 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
92 | bands = wdev->wiphy->bands[band]; |
93 | if (!bands) | |
6829c878 | 94 | continue; |
e3081501 RM |
95 | for (j = 0; j < bands->n_channels; j++) { |
96 | channel = &bands->channels[j]; | |
97 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
98 | continue; | |
99 | request->channels[i++] = channel; | |
100 | } | |
101 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 102 | } |
e3081501 | 103 | n_channels = i; |
6829c878 JB |
104 | } |
105 | request->n_channels = n_channels; | |
5ba63533 | 106 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
107 | request->n_ssids = 1; |
108 | ||
109 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
110 | wdev->conn->params.ssid_len); | |
111 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
112 | ||
fd014284 | 113 | request->wdev = wdev; |
79c97e97 | 114 | request->wiphy = &rdev->wiphy; |
15d6030b | 115 | request->scan_start = jiffies; |
6829c878 | 116 | |
79c97e97 | 117 | rdev->scan_req = request; |
6829c878 | 118 | |
e35e4d28 | 119 | err = rdev_scan(rdev, request); |
6829c878 JB |
120 | if (!err) { |
121 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 122 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 123 | dev_hold(wdev->netdev); |
6829c878 | 124 | } else { |
79c97e97 | 125 | rdev->scan_req = NULL; |
6829c878 JB |
126 | kfree(request); |
127 | } | |
128 | return err; | |
129 | } | |
130 | ||
131 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
132 | { | |
f26cbf40 | 133 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
19957bb3 | 134 | struct cfg80211_connect_params *params; |
f62fab73 | 135 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 136 | int err; |
6829c878 | 137 | |
667503dd JB |
138 | ASSERT_WDEV_LOCK(wdev); |
139 | ||
6829c878 JB |
140 | if (!wdev->conn) |
141 | return 0; | |
142 | ||
19957bb3 JB |
143 | params = &wdev->conn->params; |
144 | ||
6829c878 | 145 | switch (wdev->conn->state) { |
ceca7b71 JB |
146 | case CFG80211_CONN_SCANNING: |
147 | /* didn't find it during scan ... */ | |
148 | return -ENOENT; | |
6829c878 JB |
149 | case CFG80211_CONN_SCAN_AGAIN: |
150 | return cfg80211_conn_scan(wdev); | |
151 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
2fd05115 JB |
152 | if (WARN_ON(!rdev->ops->auth)) |
153 | return -EOPNOTSUPP; | |
19957bb3 | 154 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
155 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
156 | params->channel, params->auth_type, | |
157 | params->bssid, | |
158 | params->ssid, params->ssid_len, | |
159 | NULL, 0, | |
160 | params->key, params->key_len, | |
161 | params->key_idx, NULL, 0); | |
923a0e7d JB |
162 | case CFG80211_CONN_AUTH_FAILED: |
163 | return -ENOTCONN; | |
6829c878 | 164 | case CFG80211_CONN_ASSOCIATE_NEXT: |
2fd05115 JB |
165 | if (WARN_ON(!rdev->ops->assoc)) |
166 | return -EOPNOTSUPP; | |
19957bb3 | 167 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 168 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
169 | req.prev_bssid = wdev->conn->prev_bssid; |
170 | req.ie = params->ie; | |
171 | req.ie_len = params->ie_len; | |
172 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
173 | req.crypto = params->crypto; | |
174 | req.flags = params->flags; | |
175 | req.ht_capa = params->ht_capa; | |
176 | req.ht_capa_mask = params->ht_capa_mask; | |
177 | req.vht_capa = params->vht_capa; | |
178 | req.vht_capa_mask = params->vht_capa_mask; | |
179 | ||
91bf9b26 JB |
180 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
181 | params->bssid, params->ssid, | |
182 | params->ssid_len, &req); | |
19957bb3 | 183 | if (err) |
91bf9b26 JB |
184 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
185 | NULL, 0, | |
186 | WLAN_REASON_DEAUTH_LEAVING, | |
187 | false); | |
19957bb3 | 188 | return err; |
923a0e7d JB |
189 | case CFG80211_CONN_ASSOC_FAILED: |
190 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
191 | NULL, 0, | |
192 | WLAN_REASON_DEAUTH_LEAVING, false); | |
193 | return -ENOTCONN; | |
ceca7b71 | 194 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
195 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
196 | NULL, 0, | |
197 | WLAN_REASON_DEAUTH_LEAVING, false); | |
923a0e7d JB |
198 | /* free directly, disconnected event already sent */ |
199 | cfg80211_sme_free(wdev); | |
ceca7b71 | 200 | return 0; |
6829c878 JB |
201 | default: |
202 | return 0; | |
203 | } | |
204 | } | |
205 | ||
206 | void cfg80211_conn_work(struct work_struct *work) | |
207 | { | |
79c97e97 | 208 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
209 | container_of(work, struct cfg80211_registered_device, conn_work); |
210 | struct wireless_dev *wdev; | |
7400f42e | 211 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
212 | |
213 | rtnl_lock(); | |
6829c878 | 214 | |
89a54e48 | 215 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
c8157976 JB |
216 | if (!wdev->netdev) |
217 | continue; | |
218 | ||
667503dd JB |
219 | wdev_lock(wdev); |
220 | if (!netif_running(wdev->netdev)) { | |
221 | wdev_unlock(wdev); | |
6829c878 | 222 | continue; |
667503dd | 223 | } |
ceca7b71 JB |
224 | if (!wdev->conn || |
225 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 226 | wdev_unlock(wdev); |
6829c878 | 227 | continue; |
667503dd | 228 | } |
7400f42e JB |
229 | if (wdev->conn->params.bssid) { |
230 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
231 | bssid = bssid_buf; | |
232 | } | |
ceca7b71 | 233 | if (cfg80211_conn_do_work(wdev)) { |
667503dd | 234 | __cfg80211_connect_result( |
7d930bc3 | 235 | wdev->netdev, bssid, |
667503dd JB |
236 | NULL, 0, NULL, 0, |
237 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 238 | false, NULL); |
ceca7b71 | 239 | } |
667503dd | 240 | wdev_unlock(wdev); |
6829c878 JB |
241 | } |
242 | ||
6829c878 JB |
243 | rtnl_unlock(); |
244 | } | |
245 | ||
0e3a39b5 | 246 | /* Returned bss is reference counted and must be cleaned up appropriately. */ |
bbac31f4 | 247 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 248 | { |
f26cbf40 | 249 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 JB |
250 | struct cfg80211_bss *bss; |
251 | u16 capa = WLAN_CAPABILITY_ESS; | |
252 | ||
667503dd JB |
253 | ASSERT_WDEV_LOCK(wdev); |
254 | ||
6829c878 JB |
255 | if (wdev->conn->params.privacy) |
256 | capa |= WLAN_CAPABILITY_PRIVACY; | |
257 | ||
ed9d0102 JM |
258 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
259 | wdev->conn->params.bssid, | |
6829c878 JB |
260 | wdev->conn->params.ssid, |
261 | wdev->conn->params.ssid_len, | |
262 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
263 | capa); | |
6829c878 | 264 | if (!bss) |
bbac31f4 | 265 | return NULL; |
6829c878 JB |
266 | |
267 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
268 | wdev->conn->params.bssid = wdev->conn->bssid; | |
269 | wdev->conn->params.channel = bss->channel; | |
270 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 271 | schedule_work(&rdev->conn_work); |
6829c878 | 272 | |
bbac31f4 | 273 | return bss; |
6829c878 JB |
274 | } |
275 | ||
667503dd | 276 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
277 | { |
278 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 279 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 280 | struct cfg80211_bss *bss; |
6829c878 | 281 | |
667503dd JB |
282 | ASSERT_WDEV_LOCK(wdev); |
283 | ||
d4b1a687 | 284 | if (!wdev->conn) |
6829c878 JB |
285 | return; |
286 | ||
287 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
288 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
289 | return; | |
290 | ||
bbac31f4 | 291 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 292 | if (bss) |
5b112d3d | 293 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
294 | else |
295 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
296 | } |
297 | ||
667503dd JB |
298 | void cfg80211_sme_scan_done(struct net_device *dev) |
299 | { | |
300 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
301 | ||
302 | wdev_lock(wdev); | |
303 | __cfg80211_sme_scan_done(dev); | |
304 | wdev_unlock(wdev); | |
305 | } | |
306 | ||
ceca7b71 | 307 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 308 | { |
6829c878 | 309 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 310 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
311 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
312 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
313 | ||
667503dd JB |
314 | ASSERT_WDEV_LOCK(wdev); |
315 | ||
ceca7b71 | 316 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
317 | return; |
318 | ||
319 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
320 | wdev->conn->auto_auth && | |
321 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
322 | /* select automatically between only open, shared, leap */ | |
323 | switch (wdev->conn->params.auth_type) { | |
324 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
325 | if (wdev->connect_keys) |
326 | wdev->conn->params.auth_type = | |
327 | NL80211_AUTHTYPE_SHARED_KEY; | |
328 | else | |
329 | wdev->conn->params.auth_type = | |
330 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
331 | break; |
332 | case NL80211_AUTHTYPE_SHARED_KEY: | |
333 | wdev->conn->params.auth_type = | |
334 | NL80211_AUTHTYPE_NETWORK_EAP; | |
335 | break; | |
336 | default: | |
337 | /* huh? */ | |
338 | wdev->conn->params.auth_type = | |
339 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
340 | break; | |
341 | } | |
342 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
343 | schedule_work(&rdev->conn_work); | |
19957bb3 | 344 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
345 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
346 | NULL, 0, NULL, 0, | |
df7fc0f9 | 347 | status_code, false, NULL); |
ceca7b71 | 348 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
349 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
350 | schedule_work(&rdev->conn_work); | |
351 | } | |
352 | } | |
b23aa676 | 353 | |
ceca7b71 | 354 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 355 | { |
f26cbf40 | 356 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 357 | |
ceca7b71 | 358 | if (!wdev->conn) |
f401a6f7 JB |
359 | return false; |
360 | ||
ceca7b71 JB |
361 | if (status == WLAN_STATUS_SUCCESS) { |
362 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 363 | return false; |
ceca7b71 | 364 | } |
f401a6f7 | 365 | |
ceca7b71 JB |
366 | if (wdev->conn->prev_bssid_valid) { |
367 | /* | |
368 | * Some stupid APs don't accept reassoc, so we | |
369 | * need to fall back to trying regular assoc; | |
370 | * return true so no event is sent to userspace. | |
371 | */ | |
372 | wdev->conn->prev_bssid_valid = false; | |
373 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
374 | schedule_work(&rdev->conn_work); | |
375 | return true; | |
376 | } | |
377 | ||
923a0e7d | 378 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 379 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
380 | return false; |
381 | } | |
f401a6f7 | 382 | |
ceca7b71 JB |
383 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
384 | { | |
385 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
386 | } |
387 | ||
ceca7b71 | 388 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 389 | { |
f26cbf40 | 390 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
391 | |
392 | if (!wdev->conn) | |
393 | return; | |
394 | ||
395 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED; | |
396 | schedule_work(&rdev->conn_work); | |
ceca7b71 | 397 | } |
7d930bc3 | 398 | |
ceca7b71 JB |
399 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
400 | { | |
f26cbf40 | 401 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
402 | |
403 | if (!wdev->conn) | |
404 | return; | |
405 | ||
406 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
407 | schedule_work(&rdev->conn_work); |
408 | } | |
409 | ||
ceca7b71 JB |
410 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
411 | { | |
f26cbf40 | 412 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
413 | |
414 | if (!wdev->conn) | |
415 | return; | |
416 | ||
417 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; | |
418 | schedule_work(&rdev->conn_work); | |
ceca7b71 JB |
419 | } |
420 | ||
421 | static int cfg80211_sme_connect(struct wireless_dev *wdev, | |
422 | struct cfg80211_connect_params *connect, | |
423 | const u8 *prev_bssid) | |
424 | { | |
f26cbf40 | 425 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
426 | struct cfg80211_bss *bss; |
427 | int err; | |
428 | ||
429 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
430 | return -EOPNOTSUPP; | |
431 | ||
432 | if (wdev->current_bss) | |
433 | return -EALREADY; | |
434 | ||
435 | if (WARN_ON(wdev->conn)) | |
436 | return -EINPROGRESS; | |
437 | ||
438 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
439 | if (!wdev->conn) | |
440 | return -ENOMEM; | |
441 | ||
442 | /* | |
443 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
444 | */ | |
445 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
446 | if (connect->bssid) { | |
447 | wdev->conn->params.bssid = wdev->conn->bssid; | |
448 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
449 | } | |
450 | ||
451 | if (connect->ie) { | |
452 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
453 | GFP_KERNEL); | |
454 | wdev->conn->params.ie = wdev->conn->ie; | |
455 | if (!wdev->conn->ie) { | |
456 | kfree(wdev->conn); | |
457 | wdev->conn = NULL; | |
458 | return -ENOMEM; | |
459 | } | |
460 | } | |
461 | ||
462 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
463 | wdev->conn->auto_auth = true; | |
464 | /* start with open system ... should mostly work */ | |
465 | wdev->conn->params.auth_type = | |
466 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
467 | } else { | |
468 | wdev->conn->auto_auth = false; | |
469 | } | |
470 | ||
471 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 472 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
473 | |
474 | /* see if we have the bss already */ | |
475 | bss = cfg80211_get_conn_bss(wdev); | |
476 | ||
477 | if (prev_bssid) { | |
478 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
479 | wdev->conn->prev_bssid_valid = true; | |
480 | } | |
481 | ||
482 | /* we're good if we have a matching bss struct */ | |
483 | if (bss) { | |
ceca7b71 JB |
484 | err = cfg80211_conn_do_work(wdev); |
485 | cfg80211_put_bss(wdev->wiphy, bss); | |
486 | } else { | |
487 | /* otherwise we'll need to scan for the AP first */ | |
488 | err = cfg80211_conn_scan(wdev); | |
489 | ||
490 | /* | |
491 | * If we can't scan right now, then we need to scan again | |
492 | * after the current scan finished, since the parameters | |
493 | * changed (unless we find a good AP anyway). | |
494 | */ | |
495 | if (err == -EBUSY) { | |
496 | err = 0; | |
497 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
498 | } | |
499 | } | |
500 | ||
501 | if (err) | |
502 | cfg80211_sme_free(wdev); | |
503 | ||
504 | return err; | |
505 | } | |
506 | ||
507 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
508 | { | |
f26cbf40 | 509 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
510 | int err; |
511 | ||
512 | if (!wdev->conn) | |
513 | return 0; | |
514 | ||
515 | if (!rdev->ops->deauth) | |
516 | return -EOPNOTSUPP; | |
517 | ||
518 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
519 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
520 | err = 0; | |
521 | goto out; | |
522 | } | |
523 | ||
524 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
525 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
526 | wdev->conn->params.bssid, | |
527 | NULL, 0, reason, false); | |
528 | out: | |
529 | cfg80211_sme_free(wdev); | |
530 | return err; | |
531 | } | |
532 | ||
533 | /* | |
534 | * code shared for in-device and software SME | |
535 | */ | |
536 | ||
537 | static bool cfg80211_is_all_idle(void) | |
538 | { | |
539 | struct cfg80211_registered_device *rdev; | |
540 | struct wireless_dev *wdev; | |
541 | bool is_all_idle = true; | |
542 | ||
543 | /* | |
544 | * All devices must be idle as otherwise if you are actively | |
545 | * scanning some new beacon hints could be learned and would | |
546 | * count as new regulatory hints. | |
547 | */ | |
548 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
549 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
550 | wdev_lock(wdev); | |
551 | if (wdev->conn || wdev->current_bss) | |
552 | is_all_idle = false; | |
553 | wdev_unlock(wdev); | |
554 | } | |
555 | } | |
556 | ||
557 | return is_all_idle; | |
558 | } | |
559 | ||
560 | static void disconnect_work(struct work_struct *work) | |
561 | { | |
562 | rtnl_lock(); | |
563 | if (cfg80211_is_all_idle()) | |
564 | regulatory_hint_disconnect(); | |
565 | rtnl_unlock(); | |
566 | } | |
567 | ||
568 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
569 | ||
570 | ||
571 | /* | |
572 | * API calls for drivers implementing connect/disconnect and | |
573 | * SME event handling | |
574 | */ | |
575 | ||
6f390908 | 576 | /* This method must consume bss one way or another */ |
667503dd JB |
577 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
578 | const u8 *req_ie, size_t req_ie_len, | |
579 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
580 | u16 status, bool wextev, |
581 | struct cfg80211_bss *bss) | |
b23aa676 SO |
582 | { |
583 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 584 | const u8 *country_ie; |
3d23e349 | 585 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
586 | union iwreq_data wrqu; |
587 | #endif | |
588 | ||
667503dd JB |
589 | ASSERT_WDEV_LOCK(wdev); |
590 | ||
074ac8df | 591 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
592 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
593 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 594 | return; |
6f390908 | 595 | } |
b23aa676 | 596 | |
f26cbf40 | 597 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, |
e45cd82a | 598 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
599 | resp_ie, resp_ie_len, |
600 | status, GFP_KERNEL); | |
e45cd82a | 601 | |
3d23e349 | 602 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
603 | if (wextev) { |
604 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
605 | memset(&wrqu, 0, sizeof(wrqu)); | |
606 | wrqu.data.length = req_ie_len; | |
3409ff77 | 607 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
608 | } |
609 | ||
610 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
611 | memset(&wrqu, 0, sizeof(wrqu)); | |
612 | wrqu.data.length = resp_ie_len; | |
613 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
614 | } | |
615 | ||
616 | memset(&wrqu, 0, sizeof(wrqu)); | |
617 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 618 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 619 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
620 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
621 | wdev->wext.prev_bssid_valid = true; | |
622 | } | |
e45cd82a JB |
623 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
624 | } | |
625 | #endif | |
626 | ||
4c4d684a | 627 | if (!bss && (status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 628 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
4c4d684a UR |
629 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
630 | wdev->ssid, wdev->ssid_len, | |
631 | WLAN_CAPABILITY_ESS, | |
632 | WLAN_CAPABILITY_ESS); | |
633 | if (bss) | |
634 | cfg80211_hold_bss(bss_from_pub(bss)); | |
635 | } | |
636 | ||
df7fc0f9 JB |
637 | if (wdev->current_bss) { |
638 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 639 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
640 | wdev->current_bss = NULL; |
641 | } | |
642 | ||
fffd0934 | 643 | if (status != WLAN_STATUS_SUCCESS) { |
b47f610b | 644 | kzfree(wdev->connect_keys); |
fffd0934 | 645 | wdev->connect_keys = NULL; |
8dadadb7 | 646 | wdev->ssid_len = 0; |
f1940c57 JB |
647 | if (bss) { |
648 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
649 | cfg80211_put_bss(wdev->wiphy, bss); | |
650 | } | |
c1fbb258 | 651 | cfg80211_sme_free(wdev); |
fffd0934 | 652 | return; |
b23aa676 | 653 | } |
fffd0934 | 654 | |
4c4d684a UR |
655 | if (WARN_ON(!bss)) |
656 | return; | |
fffd0934 | 657 | |
fffd0934 JB |
658 | wdev->current_bss = bss_from_pub(bss); |
659 | ||
fffd0934 | 660 | cfg80211_upload_connect_keys(wdev); |
8b19e6ca | 661 | |
9caf0364 JB |
662 | rcu_read_lock(); |
663 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
664 | if (!country_ie) { | |
665 | rcu_read_unlock(); | |
666 | return; | |
667 | } | |
668 | ||
669 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
670 | rcu_read_unlock(); | |
8b19e6ca LR |
671 | |
672 | if (!country_ie) | |
673 | return; | |
674 | ||
675 | /* | |
676 | * ieee80211_bss_get_ie() ensures we can access: | |
677 | * - country_ie + 2, the start of the country ie data, and | |
678 | * - and country_ie[1] which is the IE length | |
679 | */ | |
789fd033 LR |
680 | regulatory_hint_country_ie(wdev->wiphy, bss->channel->band, |
681 | country_ie + 2, country_ie[1]); | |
9caf0364 | 682 | kfree(country_ie); |
b23aa676 | 683 | } |
f2129354 JB |
684 | |
685 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
686 | const u8 *req_ie, size_t req_ie_len, | |
687 | const u8 *resp_ie, size_t resp_ie_len, | |
688 | u16 status, gfp_t gfp) | |
689 | { | |
667503dd | 690 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 691 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
692 | struct cfg80211_event *ev; |
693 | unsigned long flags; | |
694 | ||
695 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); | |
696 | if (!ev) | |
697 | return; | |
698 | ||
699 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
700 | if (bssid) |
701 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
702 | if (req_ie_len) { |
703 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
704 | ev->cr.req_ie_len = req_ie_len; | |
705 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
706 | } | |
707 | if (resp_ie_len) { | |
708 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
709 | ev->cr.resp_ie_len = resp_ie_len; | |
710 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
711 | } | |
667503dd JB |
712 | ev->cr.status = status; |
713 | ||
714 | spin_lock_irqsave(&wdev->event_lock, flags); | |
715 | list_add_tail(&ev->list, &wdev->event_list); | |
716 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 717 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 718 | } |
b23aa676 SO |
719 | EXPORT_SYMBOL(cfg80211_connect_result); |
720 | ||
0e3a39b5 | 721 | /* Consumes bss object one way or another */ |
ed9d0102 | 722 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 723 | struct cfg80211_bss *bss, |
667503dd JB |
724 | const u8 *req_ie, size_t req_ie_len, |
725 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 726 | { |
3d23e349 | 727 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
728 | union iwreq_data wrqu; |
729 | #endif | |
667503dd JB |
730 | ASSERT_WDEV_LOCK(wdev); |
731 | ||
074ac8df JB |
732 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
733 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 734 | goto out; |
b23aa676 | 735 | |
ceca7b71 | 736 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 737 | goto out; |
b23aa676 SO |
738 | |
739 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 740 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
741 | wdev->current_bss = NULL; |
742 | ||
19957bb3 JB |
743 | cfg80211_hold_bss(bss_from_pub(bss)); |
744 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 745 | |
f26cbf40 ZG |
746 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
747 | wdev->netdev, bss->bssid, | |
667503dd JB |
748 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
749 | GFP_KERNEL); | |
b23aa676 | 750 | |
3d23e349 | 751 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
752 | if (req_ie) { |
753 | memset(&wrqu, 0, sizeof(wrqu)); | |
754 | wrqu.data.length = req_ie_len; | |
3409ff77 | 755 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 756 | &wrqu, req_ie); |
b23aa676 SO |
757 | } |
758 | ||
759 | if (resp_ie) { | |
760 | memset(&wrqu, 0, sizeof(wrqu)); | |
761 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
762 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
763 | &wrqu, resp_ie); | |
b23aa676 SO |
764 | } |
765 | ||
766 | memset(&wrqu, 0, sizeof(wrqu)); | |
767 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
768 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
769 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 770 | wdev->wext.prev_bssid_valid = true; |
667503dd | 771 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 772 | #endif |
adbde344 VT |
773 | |
774 | return; | |
775 | out: | |
5b112d3d | 776 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 777 | } |
667503dd | 778 | |
ed9d0102 JM |
779 | void cfg80211_roamed(struct net_device *dev, |
780 | struct ieee80211_channel *channel, | |
781 | const u8 *bssid, | |
667503dd JB |
782 | const u8 *req_ie, size_t req_ie_len, |
783 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
784 | { |
785 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
786 | struct cfg80211_bss *bss; | |
787 | ||
adbde344 VT |
788 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
789 | wdev->ssid_len, WLAN_CAPABILITY_ESS, | |
790 | WLAN_CAPABILITY_ESS); | |
791 | if (WARN_ON(!bss)) | |
792 | return; | |
793 | ||
794 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
795 | resp_ie_len, gfp); | |
796 | } | |
797 | EXPORT_SYMBOL(cfg80211_roamed); | |
798 | ||
0e3a39b5 | 799 | /* Consumes bss object one way or another */ |
adbde344 VT |
800 | void cfg80211_roamed_bss(struct net_device *dev, |
801 | struct cfg80211_bss *bss, const u8 *req_ie, | |
802 | size_t req_ie_len, const u8 *resp_ie, | |
803 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
804 | { |
805 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 806 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
807 | struct cfg80211_event *ev; |
808 | unsigned long flags; | |
809 | ||
adbde344 VT |
810 | if (WARN_ON(!bss)) |
811 | return; | |
812 | ||
667503dd | 813 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 814 | if (!ev) { |
5b112d3d | 815 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 816 | return; |
adbde344 | 817 | } |
667503dd JB |
818 | |
819 | ev->type = EVENT_ROAMED; | |
667503dd JB |
820 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
821 | ev->rm.req_ie_len = req_ie_len; | |
822 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
823 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
824 | ev->rm.resp_ie_len = resp_ie_len; | |
825 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 826 | ev->rm.bss = bss; |
667503dd JB |
827 | |
828 | spin_lock_irqsave(&wdev->event_lock, flags); | |
829 | list_add_tail(&ev->list, &wdev->event_list); | |
830 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 831 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 832 | } |
adbde344 | 833 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 834 | |
667503dd | 835 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 836 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
837 | { |
838 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 839 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 840 | int i; |
3d23e349 | 841 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
842 | union iwreq_data wrqu; |
843 | #endif | |
844 | ||
667503dd JB |
845 | ASSERT_WDEV_LOCK(wdev); |
846 | ||
074ac8df JB |
847 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
848 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
849 | return; |
850 | ||
b23aa676 SO |
851 | if (wdev->current_bss) { |
852 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 853 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
854 | } |
855 | ||
856 | wdev->current_bss = NULL; | |
8dadadb7 | 857 | wdev->ssid_len = 0; |
b23aa676 | 858 | |
fffd0934 JB |
859 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
860 | ||
861 | /* | |
862 | * Delete all the keys ... pairwise keys can't really | |
863 | * exist any more anyway, but default keys might. | |
864 | */ | |
865 | if (rdev->ops->del_key) | |
866 | for (i = 0; i < 6; i++) | |
e35e4d28 | 867 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 868 | |
fa9ffc74 KP |
869 | rdev_set_qos_map(rdev, dev, NULL); |
870 | ||
3d23e349 | 871 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
872 | memset(&wrqu, 0, sizeof(wrqu)); |
873 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
874 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 875 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 876 | #endif |
09d989d1 LR |
877 | |
878 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
879 | } |
880 | ||
881 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
c1e5f471 | 882 | const u8 *ie, size_t ie_len, gfp_t gfp) |
b23aa676 | 883 | { |
667503dd | 884 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 885 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
886 | struct cfg80211_event *ev; |
887 | unsigned long flags; | |
888 | ||
889 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
890 | if (!ev) | |
891 | return; | |
892 | ||
893 | ev->type = EVENT_DISCONNECTED; | |
894 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
895 | ev->dc.ie_len = ie_len; | |
896 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
897 | ev->dc.reason = reason; | |
898 | ||
899 | spin_lock_irqsave(&wdev->event_lock, flags); | |
900 | list_add_tail(&ev->list, &wdev->event_list); | |
901 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 902 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
903 | } |
904 | EXPORT_SYMBOL(cfg80211_disconnected); | |
905 | ||
ceca7b71 JB |
906 | /* |
907 | * API calls for nl80211/wext compatibility code | |
908 | */ | |
83739b03 JB |
909 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
910 | struct net_device *dev, | |
911 | struct cfg80211_connect_params *connect, | |
912 | struct cfg80211_cached_keys *connkeys, | |
913 | const u8 *prev_bssid) | |
b23aa676 | 914 | { |
b23aa676 | 915 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
916 | int err; |
917 | ||
918 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 919 | |
fffd0934 | 920 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 921 | kzfree(wdev->connect_keys); |
fffd0934 JB |
922 | wdev->connect_keys = NULL; |
923 | } | |
924 | ||
7e7c8926 BG |
925 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
926 | rdev->wiphy.ht_capa_mod_mask); | |
927 | ||
fffd0934 JB |
928 | if (connkeys && connkeys->def >= 0) { |
929 | int idx; | |
bcba8eae | 930 | u32 cipher; |
fffd0934 JB |
931 | |
932 | idx = connkeys->def; | |
bcba8eae | 933 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 934 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
935 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
936 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
937 | connect->key_idx = idx; |
938 | connect->key = connkeys->params[idx].key; | |
939 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
940 | |
941 | /* | |
942 | * If ciphers are not set (e.g. when going through | |
943 | * iwconfig), we have to set them appropriately here. | |
944 | */ | |
945 | if (connect->crypto.cipher_group == 0) | |
946 | connect->crypto.cipher_group = cipher; | |
947 | ||
948 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
949 | connect->crypto.n_ciphers_pairwise = 1; | |
950 | connect->crypto.ciphers_pairwise[0] = cipher; | |
951 | } | |
fffd0934 JB |
952 | } |
953 | } | |
954 | ||
ceca7b71 JB |
955 | wdev->connect_keys = connkeys; |
956 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
957 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 958 | |
ceca7b71 JB |
959 | if (!rdev->ops->connect) |
960 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
961 | else | |
e35e4d28 | 962 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 963 | |
ceca7b71 JB |
964 | if (err) { |
965 | wdev->connect_keys = NULL; | |
966 | wdev->ssid_len = 0; | |
967 | return err; | |
6829c878 | 968 | } |
ceca7b71 JB |
969 | |
970 | return 0; | |
b23aa676 SO |
971 | } |
972 | ||
83739b03 JB |
973 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
974 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 975 | { |
6829c878 | 976 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 977 | int err = 0; |
b23aa676 | 978 | |
667503dd JB |
979 | ASSERT_WDEV_LOCK(wdev); |
980 | ||
b47f610b | 981 | kzfree(wdev->connect_keys); |
fffd0934 JB |
982 | wdev->connect_keys = NULL; |
983 | ||
dee8a973 | 984 | if (wdev->conn) |
ceca7b71 | 985 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 986 | else if (!rdev->ops->disconnect) |
ceca7b71 | 987 | cfg80211_mlme_down(rdev, dev); |
dee8a973 | 988 | else if (wdev->current_bss) |
e35e4d28 | 989 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 990 | |
ceca7b71 | 991 | return err; |
19957bb3 | 992 | } |