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 | ||
2a84ee86 KB |
83 | if (wdev->conn->params.channel) { |
84 | enum ieee80211_band band = wdev->conn->params.channel->band; | |
85 | struct ieee80211_supported_band *sband = | |
86 | wdev->wiphy->bands[band]; | |
87 | ||
88 | if (!sband) { | |
89 | kfree(request); | |
90 | return -EINVAL; | |
91 | } | |
6829c878 | 92 | request->channels[0] = wdev->conn->params.channel; |
2a84ee86 KB |
93 | request->rates[band] = (1 << sband->n_bitrates) - 1; |
94 | } else { | |
6829c878 JB |
95 | int i = 0, j; |
96 | enum ieee80211_band band; | |
e3081501 RM |
97 | struct ieee80211_supported_band *bands; |
98 | struct ieee80211_channel *channel; | |
6829c878 JB |
99 | |
100 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
101 | bands = wdev->wiphy->bands[band]; |
102 | if (!bands) | |
6829c878 | 103 | continue; |
e3081501 RM |
104 | for (j = 0; j < bands->n_channels; j++) { |
105 | channel = &bands->channels[j]; | |
106 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
107 | continue; | |
108 | request->channels[i++] = channel; | |
109 | } | |
110 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 111 | } |
e3081501 | 112 | n_channels = i; |
6829c878 JB |
113 | } |
114 | request->n_channels = n_channels; | |
5ba63533 | 115 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
116 | request->n_ssids = 1; |
117 | ||
118 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
119 | wdev->conn->params.ssid_len); | |
120 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
121 | ||
fd014284 | 122 | request->wdev = wdev; |
79c97e97 | 123 | request->wiphy = &rdev->wiphy; |
15d6030b | 124 | request->scan_start = jiffies; |
6829c878 | 125 | |
79c97e97 | 126 | rdev->scan_req = request; |
6829c878 | 127 | |
e35e4d28 | 128 | err = rdev_scan(rdev, request); |
6829c878 JB |
129 | if (!err) { |
130 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 131 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 132 | dev_hold(wdev->netdev); |
6829c878 | 133 | } else { |
79c97e97 | 134 | rdev->scan_req = NULL; |
6829c878 JB |
135 | kfree(request); |
136 | } | |
137 | return err; | |
138 | } | |
139 | ||
140 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
141 | { | |
f26cbf40 | 142 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
19957bb3 | 143 | struct cfg80211_connect_params *params; |
f62fab73 | 144 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 145 | int err; |
6829c878 | 146 | |
667503dd JB |
147 | ASSERT_WDEV_LOCK(wdev); |
148 | ||
6829c878 JB |
149 | if (!wdev->conn) |
150 | return 0; | |
151 | ||
19957bb3 JB |
152 | params = &wdev->conn->params; |
153 | ||
6829c878 | 154 | switch (wdev->conn->state) { |
ceca7b71 JB |
155 | case CFG80211_CONN_SCANNING: |
156 | /* didn't find it during scan ... */ | |
157 | return -ENOENT; | |
6829c878 JB |
158 | case CFG80211_CONN_SCAN_AGAIN: |
159 | return cfg80211_conn_scan(wdev); | |
160 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
2fd05115 JB |
161 | if (WARN_ON(!rdev->ops->auth)) |
162 | return -EOPNOTSUPP; | |
19957bb3 | 163 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
164 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
165 | params->channel, params->auth_type, | |
166 | params->bssid, | |
167 | params->ssid, params->ssid_len, | |
168 | NULL, 0, | |
169 | params->key, params->key_len, | |
170 | params->key_idx, NULL, 0); | |
923a0e7d JB |
171 | case CFG80211_CONN_AUTH_FAILED: |
172 | return -ENOTCONN; | |
6829c878 | 173 | case CFG80211_CONN_ASSOCIATE_NEXT: |
2fd05115 JB |
174 | if (WARN_ON(!rdev->ops->assoc)) |
175 | return -EOPNOTSUPP; | |
19957bb3 | 176 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 177 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
178 | req.prev_bssid = wdev->conn->prev_bssid; |
179 | req.ie = params->ie; | |
180 | req.ie_len = params->ie_len; | |
181 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
182 | req.crypto = params->crypto; | |
183 | req.flags = params->flags; | |
184 | req.ht_capa = params->ht_capa; | |
185 | req.ht_capa_mask = params->ht_capa_mask; | |
186 | req.vht_capa = params->vht_capa; | |
187 | req.vht_capa_mask = params->vht_capa_mask; | |
188 | ||
91bf9b26 JB |
189 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
190 | params->bssid, params->ssid, | |
191 | params->ssid_len, &req); | |
19957bb3 | 192 | if (err) |
91bf9b26 JB |
193 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
194 | NULL, 0, | |
195 | WLAN_REASON_DEAUTH_LEAVING, | |
196 | false); | |
19957bb3 | 197 | return err; |
923a0e7d JB |
198 | case CFG80211_CONN_ASSOC_FAILED: |
199 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
200 | NULL, 0, | |
201 | WLAN_REASON_DEAUTH_LEAVING, false); | |
202 | return -ENOTCONN; | |
ceca7b71 | 203 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
204 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
205 | NULL, 0, | |
206 | WLAN_REASON_DEAUTH_LEAVING, false); | |
923a0e7d JB |
207 | /* free directly, disconnected event already sent */ |
208 | cfg80211_sme_free(wdev); | |
ceca7b71 | 209 | return 0; |
6829c878 JB |
210 | default: |
211 | return 0; | |
212 | } | |
213 | } | |
214 | ||
215 | void cfg80211_conn_work(struct work_struct *work) | |
216 | { | |
79c97e97 | 217 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
218 | container_of(work, struct cfg80211_registered_device, conn_work); |
219 | struct wireless_dev *wdev; | |
7400f42e | 220 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
221 | |
222 | rtnl_lock(); | |
6829c878 | 223 | |
89a54e48 | 224 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
c8157976 JB |
225 | if (!wdev->netdev) |
226 | continue; | |
227 | ||
667503dd JB |
228 | wdev_lock(wdev); |
229 | if (!netif_running(wdev->netdev)) { | |
230 | wdev_unlock(wdev); | |
6829c878 | 231 | continue; |
667503dd | 232 | } |
ceca7b71 JB |
233 | if (!wdev->conn || |
234 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 235 | wdev_unlock(wdev); |
6829c878 | 236 | continue; |
667503dd | 237 | } |
7400f42e JB |
238 | if (wdev->conn->params.bssid) { |
239 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
240 | bssid = bssid_buf; | |
241 | } | |
ceca7b71 | 242 | if (cfg80211_conn_do_work(wdev)) { |
667503dd | 243 | __cfg80211_connect_result( |
7d930bc3 | 244 | wdev->netdev, bssid, |
667503dd JB |
245 | NULL, 0, NULL, 0, |
246 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 247 | false, NULL); |
ceca7b71 | 248 | } |
667503dd | 249 | wdev_unlock(wdev); |
6829c878 JB |
250 | } |
251 | ||
6829c878 JB |
252 | rtnl_unlock(); |
253 | } | |
254 | ||
0e3a39b5 | 255 | /* Returned bss is reference counted and must be cleaned up appropriately. */ |
bbac31f4 | 256 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 257 | { |
f26cbf40 | 258 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 259 | struct cfg80211_bss *bss; |
6829c878 | 260 | |
667503dd JB |
261 | ASSERT_WDEV_LOCK(wdev); |
262 | ||
ed9d0102 JM |
263 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
264 | wdev->conn->params.bssid, | |
6829c878 JB |
265 | wdev->conn->params.ssid, |
266 | wdev->conn->params.ssid_len, | |
6eb18137 DL |
267 | IEEE80211_BSS_TYPE_ESS, |
268 | IEEE80211_PRIVACY(wdev->conn->params.privacy)); | |
6829c878 | 269 | if (!bss) |
bbac31f4 | 270 | return NULL; |
6829c878 JB |
271 | |
272 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
273 | wdev->conn->params.bssid = wdev->conn->bssid; | |
274 | wdev->conn->params.channel = bss->channel; | |
275 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 276 | schedule_work(&rdev->conn_work); |
6829c878 | 277 | |
bbac31f4 | 278 | return bss; |
6829c878 JB |
279 | } |
280 | ||
667503dd | 281 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
282 | { |
283 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 284 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 285 | struct cfg80211_bss *bss; |
6829c878 | 286 | |
667503dd JB |
287 | ASSERT_WDEV_LOCK(wdev); |
288 | ||
d4b1a687 | 289 | if (!wdev->conn) |
6829c878 JB |
290 | return; |
291 | ||
292 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
293 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
294 | return; | |
295 | ||
bbac31f4 | 296 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 297 | if (bss) |
5b112d3d | 298 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
299 | else |
300 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
301 | } |
302 | ||
667503dd JB |
303 | void cfg80211_sme_scan_done(struct net_device *dev) |
304 | { | |
305 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
306 | ||
307 | wdev_lock(wdev); | |
308 | __cfg80211_sme_scan_done(dev); | |
309 | wdev_unlock(wdev); | |
310 | } | |
311 | ||
ceca7b71 | 312 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 313 | { |
6829c878 | 314 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 315 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
316 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
317 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
318 | ||
667503dd JB |
319 | ASSERT_WDEV_LOCK(wdev); |
320 | ||
ceca7b71 | 321 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
322 | return; |
323 | ||
324 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
325 | wdev->conn->auto_auth && | |
326 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
327 | /* select automatically between only open, shared, leap */ | |
328 | switch (wdev->conn->params.auth_type) { | |
329 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
330 | if (wdev->connect_keys) |
331 | wdev->conn->params.auth_type = | |
332 | NL80211_AUTHTYPE_SHARED_KEY; | |
333 | else | |
334 | wdev->conn->params.auth_type = | |
335 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
336 | break; |
337 | case NL80211_AUTHTYPE_SHARED_KEY: | |
338 | wdev->conn->params.auth_type = | |
339 | NL80211_AUTHTYPE_NETWORK_EAP; | |
340 | break; | |
341 | default: | |
342 | /* huh? */ | |
343 | wdev->conn->params.auth_type = | |
344 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
345 | break; | |
346 | } | |
347 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
348 | schedule_work(&rdev->conn_work); | |
19957bb3 | 349 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
350 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
351 | NULL, 0, NULL, 0, | |
df7fc0f9 | 352 | status_code, false, NULL); |
ceca7b71 | 353 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
354 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
355 | schedule_work(&rdev->conn_work); | |
356 | } | |
357 | } | |
b23aa676 | 358 | |
ceca7b71 | 359 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 360 | { |
f26cbf40 | 361 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 362 | |
ceca7b71 | 363 | if (!wdev->conn) |
f401a6f7 JB |
364 | return false; |
365 | ||
ceca7b71 JB |
366 | if (status == WLAN_STATUS_SUCCESS) { |
367 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 368 | return false; |
ceca7b71 | 369 | } |
f401a6f7 | 370 | |
ceca7b71 JB |
371 | if (wdev->conn->prev_bssid_valid) { |
372 | /* | |
373 | * Some stupid APs don't accept reassoc, so we | |
374 | * need to fall back to trying regular assoc; | |
375 | * return true so no event is sent to userspace. | |
376 | */ | |
377 | wdev->conn->prev_bssid_valid = false; | |
378 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
379 | schedule_work(&rdev->conn_work); | |
380 | return true; | |
381 | } | |
382 | ||
923a0e7d | 383 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 384 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
385 | return false; |
386 | } | |
f401a6f7 | 387 | |
ceca7b71 JB |
388 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
389 | { | |
390 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
391 | } |
392 | ||
ceca7b71 | 393 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 394 | { |
f26cbf40 | 395 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
396 | |
397 | if (!wdev->conn) | |
398 | return; | |
399 | ||
400 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED; | |
401 | schedule_work(&rdev->conn_work); | |
ceca7b71 | 402 | } |
7d930bc3 | 403 | |
ceca7b71 JB |
404 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
405 | { | |
f26cbf40 | 406 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
407 | |
408 | if (!wdev->conn) | |
409 | return; | |
410 | ||
411 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
412 | schedule_work(&rdev->conn_work); |
413 | } | |
414 | ||
ceca7b71 JB |
415 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
416 | { | |
f26cbf40 | 417 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
418 | |
419 | if (!wdev->conn) | |
420 | return; | |
421 | ||
422 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; | |
423 | schedule_work(&rdev->conn_work); | |
ceca7b71 JB |
424 | } |
425 | ||
426 | static int cfg80211_sme_connect(struct wireless_dev *wdev, | |
427 | struct cfg80211_connect_params *connect, | |
428 | const u8 *prev_bssid) | |
429 | { | |
f26cbf40 | 430 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
431 | struct cfg80211_bss *bss; |
432 | int err; | |
433 | ||
434 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
435 | return -EOPNOTSUPP; | |
436 | ||
437 | if (wdev->current_bss) | |
438 | return -EALREADY; | |
439 | ||
440 | if (WARN_ON(wdev->conn)) | |
441 | return -EINPROGRESS; | |
442 | ||
443 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
444 | if (!wdev->conn) | |
445 | return -ENOMEM; | |
446 | ||
447 | /* | |
448 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
449 | */ | |
450 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
451 | if (connect->bssid) { | |
452 | wdev->conn->params.bssid = wdev->conn->bssid; | |
453 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
454 | } | |
455 | ||
456 | if (connect->ie) { | |
457 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
458 | GFP_KERNEL); | |
459 | wdev->conn->params.ie = wdev->conn->ie; | |
460 | if (!wdev->conn->ie) { | |
461 | kfree(wdev->conn); | |
462 | wdev->conn = NULL; | |
463 | return -ENOMEM; | |
464 | } | |
465 | } | |
466 | ||
467 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
468 | wdev->conn->auto_auth = true; | |
469 | /* start with open system ... should mostly work */ | |
470 | wdev->conn->params.auth_type = | |
471 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
472 | } else { | |
473 | wdev->conn->auto_auth = false; | |
474 | } | |
475 | ||
476 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 477 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
478 | |
479 | /* see if we have the bss already */ | |
480 | bss = cfg80211_get_conn_bss(wdev); | |
481 | ||
482 | if (prev_bssid) { | |
483 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
484 | wdev->conn->prev_bssid_valid = true; | |
485 | } | |
486 | ||
487 | /* we're good if we have a matching bss struct */ | |
488 | if (bss) { | |
ceca7b71 JB |
489 | err = cfg80211_conn_do_work(wdev); |
490 | cfg80211_put_bss(wdev->wiphy, bss); | |
491 | } else { | |
492 | /* otherwise we'll need to scan for the AP first */ | |
493 | err = cfg80211_conn_scan(wdev); | |
494 | ||
495 | /* | |
496 | * If we can't scan right now, then we need to scan again | |
497 | * after the current scan finished, since the parameters | |
498 | * changed (unless we find a good AP anyway). | |
499 | */ | |
500 | if (err == -EBUSY) { | |
501 | err = 0; | |
502 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
503 | } | |
504 | } | |
505 | ||
506 | if (err) | |
507 | cfg80211_sme_free(wdev); | |
508 | ||
509 | return err; | |
510 | } | |
511 | ||
512 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
513 | { | |
f26cbf40 | 514 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
515 | int err; |
516 | ||
517 | if (!wdev->conn) | |
518 | return 0; | |
519 | ||
520 | if (!rdev->ops->deauth) | |
521 | return -EOPNOTSUPP; | |
522 | ||
523 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
524 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
525 | err = 0; | |
526 | goto out; | |
527 | } | |
528 | ||
529 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
530 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
531 | wdev->conn->params.bssid, | |
532 | NULL, 0, reason, false); | |
533 | out: | |
534 | cfg80211_sme_free(wdev); | |
535 | return err; | |
536 | } | |
537 | ||
538 | /* | |
539 | * code shared for in-device and software SME | |
540 | */ | |
541 | ||
542 | static bool cfg80211_is_all_idle(void) | |
543 | { | |
544 | struct cfg80211_registered_device *rdev; | |
545 | struct wireless_dev *wdev; | |
546 | bool is_all_idle = true; | |
547 | ||
548 | /* | |
549 | * All devices must be idle as otherwise if you are actively | |
550 | * scanning some new beacon hints could be learned and would | |
551 | * count as new regulatory hints. | |
552 | */ | |
553 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
554 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
555 | wdev_lock(wdev); | |
556 | if (wdev->conn || wdev->current_bss) | |
557 | is_all_idle = false; | |
558 | wdev_unlock(wdev); | |
559 | } | |
560 | } | |
561 | ||
562 | return is_all_idle; | |
563 | } | |
564 | ||
565 | static void disconnect_work(struct work_struct *work) | |
566 | { | |
567 | rtnl_lock(); | |
568 | if (cfg80211_is_all_idle()) | |
569 | regulatory_hint_disconnect(); | |
570 | rtnl_unlock(); | |
571 | } | |
572 | ||
573 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
574 | ||
575 | ||
576 | /* | |
577 | * API calls for drivers implementing connect/disconnect and | |
578 | * SME event handling | |
579 | */ | |
580 | ||
6f390908 | 581 | /* This method must consume bss one way or another */ |
667503dd JB |
582 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
583 | const u8 *req_ie, size_t req_ie_len, | |
584 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
585 | u16 status, bool wextev, |
586 | struct cfg80211_bss *bss) | |
b23aa676 SO |
587 | { |
588 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 589 | const u8 *country_ie; |
3d23e349 | 590 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
591 | union iwreq_data wrqu; |
592 | #endif | |
593 | ||
667503dd JB |
594 | ASSERT_WDEV_LOCK(wdev); |
595 | ||
074ac8df | 596 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
597 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
598 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 599 | return; |
6f390908 | 600 | } |
b23aa676 | 601 | |
f26cbf40 | 602 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, |
e45cd82a | 603 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
604 | resp_ie, resp_ie_len, |
605 | status, GFP_KERNEL); | |
e45cd82a | 606 | |
3d23e349 | 607 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
608 | if (wextev) { |
609 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
610 | memset(&wrqu, 0, sizeof(wrqu)); | |
611 | wrqu.data.length = req_ie_len; | |
3409ff77 | 612 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
613 | } |
614 | ||
615 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
616 | memset(&wrqu, 0, sizeof(wrqu)); | |
617 | wrqu.data.length = resp_ie_len; | |
618 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
619 | } | |
620 | ||
621 | memset(&wrqu, 0, sizeof(wrqu)); | |
622 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 623 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 624 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
625 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
626 | wdev->wext.prev_bssid_valid = true; | |
627 | } | |
e45cd82a JB |
628 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
629 | } | |
630 | #endif | |
631 | ||
4c4d684a | 632 | if (!bss && (status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 633 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
4c4d684a UR |
634 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
635 | wdev->ssid, wdev->ssid_len, | |
6eb18137 DL |
636 | IEEE80211_BSS_TYPE_ESS, |
637 | IEEE80211_PRIVACY_ANY); | |
4c4d684a UR |
638 | if (bss) |
639 | cfg80211_hold_bss(bss_from_pub(bss)); | |
640 | } | |
641 | ||
df7fc0f9 JB |
642 | if (wdev->current_bss) { |
643 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 644 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
645 | wdev->current_bss = NULL; |
646 | } | |
647 | ||
fffd0934 | 648 | if (status != WLAN_STATUS_SUCCESS) { |
b47f610b | 649 | kzfree(wdev->connect_keys); |
fffd0934 | 650 | wdev->connect_keys = NULL; |
8dadadb7 | 651 | wdev->ssid_len = 0; |
f1940c57 JB |
652 | if (bss) { |
653 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
654 | cfg80211_put_bss(wdev->wiphy, bss); | |
655 | } | |
c1fbb258 | 656 | cfg80211_sme_free(wdev); |
fffd0934 | 657 | return; |
b23aa676 | 658 | } |
fffd0934 | 659 | |
4c4d684a UR |
660 | if (WARN_ON(!bss)) |
661 | return; | |
fffd0934 | 662 | |
fffd0934 JB |
663 | wdev->current_bss = bss_from_pub(bss); |
664 | ||
fffd0934 | 665 | cfg80211_upload_connect_keys(wdev); |
8b19e6ca | 666 | |
9caf0364 JB |
667 | rcu_read_lock(); |
668 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
669 | if (!country_ie) { | |
670 | rcu_read_unlock(); | |
671 | return; | |
672 | } | |
673 | ||
674 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
675 | rcu_read_unlock(); | |
8b19e6ca LR |
676 | |
677 | if (!country_ie) | |
678 | return; | |
679 | ||
680 | /* | |
681 | * ieee80211_bss_get_ie() ensures we can access: | |
682 | * - country_ie + 2, the start of the country ie data, and | |
683 | * - and country_ie[1] which is the IE length | |
684 | */ | |
789fd033 LR |
685 | regulatory_hint_country_ie(wdev->wiphy, bss->channel->band, |
686 | country_ie + 2, country_ie[1]); | |
9caf0364 | 687 | kfree(country_ie); |
b23aa676 | 688 | } |
f2129354 JB |
689 | |
690 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
691 | const u8 *req_ie, size_t req_ie_len, | |
692 | const u8 *resp_ie, size_t resp_ie_len, | |
693 | u16 status, gfp_t gfp) | |
694 | { | |
667503dd | 695 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 696 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
697 | struct cfg80211_event *ev; |
698 | unsigned long flags; | |
699 | ||
700 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); | |
701 | if (!ev) | |
702 | return; | |
703 | ||
704 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
705 | if (bssid) |
706 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
707 | if (req_ie_len) { |
708 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
709 | ev->cr.req_ie_len = req_ie_len; | |
710 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
711 | } | |
712 | if (resp_ie_len) { | |
713 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
714 | ev->cr.resp_ie_len = resp_ie_len; | |
715 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
716 | } | |
667503dd JB |
717 | ev->cr.status = status; |
718 | ||
719 | spin_lock_irqsave(&wdev->event_lock, flags); | |
720 | list_add_tail(&ev->list, &wdev->event_list); | |
721 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 722 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 723 | } |
b23aa676 SO |
724 | EXPORT_SYMBOL(cfg80211_connect_result); |
725 | ||
0e3a39b5 | 726 | /* Consumes bss object one way or another */ |
ed9d0102 | 727 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 728 | struct cfg80211_bss *bss, |
667503dd JB |
729 | const u8 *req_ie, size_t req_ie_len, |
730 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 731 | { |
3d23e349 | 732 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
733 | union iwreq_data wrqu; |
734 | #endif | |
667503dd JB |
735 | ASSERT_WDEV_LOCK(wdev); |
736 | ||
074ac8df JB |
737 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
738 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 739 | goto out; |
b23aa676 | 740 | |
ceca7b71 | 741 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 742 | goto out; |
b23aa676 SO |
743 | |
744 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 745 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
746 | wdev->current_bss = NULL; |
747 | ||
19957bb3 JB |
748 | cfg80211_hold_bss(bss_from_pub(bss)); |
749 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 750 | |
f26cbf40 ZG |
751 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
752 | wdev->netdev, bss->bssid, | |
667503dd JB |
753 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
754 | GFP_KERNEL); | |
b23aa676 | 755 | |
3d23e349 | 756 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
757 | if (req_ie) { |
758 | memset(&wrqu, 0, sizeof(wrqu)); | |
759 | wrqu.data.length = req_ie_len; | |
3409ff77 | 760 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 761 | &wrqu, req_ie); |
b23aa676 SO |
762 | } |
763 | ||
764 | if (resp_ie) { | |
765 | memset(&wrqu, 0, sizeof(wrqu)); | |
766 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
767 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
768 | &wrqu, resp_ie); | |
b23aa676 SO |
769 | } |
770 | ||
771 | memset(&wrqu, 0, sizeof(wrqu)); | |
772 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
773 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
774 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 775 | wdev->wext.prev_bssid_valid = true; |
667503dd | 776 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 777 | #endif |
adbde344 VT |
778 | |
779 | return; | |
780 | out: | |
5b112d3d | 781 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 782 | } |
667503dd | 783 | |
ed9d0102 JM |
784 | void cfg80211_roamed(struct net_device *dev, |
785 | struct ieee80211_channel *channel, | |
786 | const u8 *bssid, | |
667503dd JB |
787 | const u8 *req_ie, size_t req_ie_len, |
788 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
789 | { |
790 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
791 | struct cfg80211_bss *bss; | |
792 | ||
adbde344 | 793 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
6eb18137 DL |
794 | wdev->ssid_len, |
795 | IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY); | |
adbde344 VT |
796 | if (WARN_ON(!bss)) |
797 | return; | |
798 | ||
799 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
800 | resp_ie_len, gfp); | |
801 | } | |
802 | EXPORT_SYMBOL(cfg80211_roamed); | |
803 | ||
0e3a39b5 | 804 | /* Consumes bss object one way or another */ |
adbde344 VT |
805 | void cfg80211_roamed_bss(struct net_device *dev, |
806 | struct cfg80211_bss *bss, const u8 *req_ie, | |
807 | size_t req_ie_len, const u8 *resp_ie, | |
808 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
809 | { |
810 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 811 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
812 | struct cfg80211_event *ev; |
813 | unsigned long flags; | |
814 | ||
adbde344 VT |
815 | if (WARN_ON(!bss)) |
816 | return; | |
817 | ||
667503dd | 818 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 819 | if (!ev) { |
5b112d3d | 820 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 821 | return; |
adbde344 | 822 | } |
667503dd JB |
823 | |
824 | ev->type = EVENT_ROAMED; | |
667503dd JB |
825 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
826 | ev->rm.req_ie_len = req_ie_len; | |
827 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
828 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
829 | ev->rm.resp_ie_len = resp_ie_len; | |
830 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 831 | ev->rm.bss = bss; |
667503dd JB |
832 | |
833 | spin_lock_irqsave(&wdev->event_lock, flags); | |
834 | list_add_tail(&ev->list, &wdev->event_list); | |
835 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 836 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 837 | } |
adbde344 | 838 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 839 | |
667503dd | 840 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 841 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
842 | { |
843 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 844 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 845 | int i; |
3d23e349 | 846 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
847 | union iwreq_data wrqu; |
848 | #endif | |
849 | ||
667503dd JB |
850 | ASSERT_WDEV_LOCK(wdev); |
851 | ||
074ac8df JB |
852 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
853 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
854 | return; |
855 | ||
b23aa676 SO |
856 | if (wdev->current_bss) { |
857 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 858 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
859 | } |
860 | ||
861 | wdev->current_bss = NULL; | |
8dadadb7 | 862 | wdev->ssid_len = 0; |
b23aa676 | 863 | |
fffd0934 JB |
864 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
865 | ||
866 | /* | |
867 | * Delete all the keys ... pairwise keys can't really | |
868 | * exist any more anyway, but default keys might. | |
869 | */ | |
870 | if (rdev->ops->del_key) | |
871 | for (i = 0; i < 6; i++) | |
e35e4d28 | 872 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 873 | |
fa9ffc74 KP |
874 | rdev_set_qos_map(rdev, dev, NULL); |
875 | ||
3d23e349 | 876 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
877 | memset(&wrqu, 0, sizeof(wrqu)); |
878 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
879 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 880 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 881 | #endif |
09d989d1 LR |
882 | |
883 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
884 | } |
885 | ||
886 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
c1e5f471 | 887 | const u8 *ie, size_t ie_len, gfp_t gfp) |
b23aa676 | 888 | { |
667503dd | 889 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 890 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
891 | struct cfg80211_event *ev; |
892 | unsigned long flags; | |
893 | ||
894 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
895 | if (!ev) | |
896 | return; | |
897 | ||
898 | ev->type = EVENT_DISCONNECTED; | |
899 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
900 | ev->dc.ie_len = ie_len; | |
901 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
902 | ev->dc.reason = reason; | |
903 | ||
904 | spin_lock_irqsave(&wdev->event_lock, flags); | |
905 | list_add_tail(&ev->list, &wdev->event_list); | |
906 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 907 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
908 | } |
909 | EXPORT_SYMBOL(cfg80211_disconnected); | |
910 | ||
ceca7b71 JB |
911 | /* |
912 | * API calls for nl80211/wext compatibility code | |
913 | */ | |
83739b03 JB |
914 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
915 | struct net_device *dev, | |
916 | struct cfg80211_connect_params *connect, | |
917 | struct cfg80211_cached_keys *connkeys, | |
918 | const u8 *prev_bssid) | |
b23aa676 | 919 | { |
b23aa676 | 920 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
921 | int err; |
922 | ||
923 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 924 | |
fffd0934 | 925 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 926 | kzfree(wdev->connect_keys); |
fffd0934 JB |
927 | wdev->connect_keys = NULL; |
928 | } | |
929 | ||
7e7c8926 BG |
930 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
931 | rdev->wiphy.ht_capa_mod_mask); | |
932 | ||
fffd0934 JB |
933 | if (connkeys && connkeys->def >= 0) { |
934 | int idx; | |
bcba8eae | 935 | u32 cipher; |
fffd0934 JB |
936 | |
937 | idx = connkeys->def; | |
bcba8eae | 938 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 939 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
940 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
941 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
942 | connect->key_idx = idx; |
943 | connect->key = connkeys->params[idx].key; | |
944 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
945 | |
946 | /* | |
947 | * If ciphers are not set (e.g. when going through | |
948 | * iwconfig), we have to set them appropriately here. | |
949 | */ | |
950 | if (connect->crypto.cipher_group == 0) | |
951 | connect->crypto.cipher_group = cipher; | |
952 | ||
953 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
954 | connect->crypto.n_ciphers_pairwise = 1; | |
955 | connect->crypto.ciphers_pairwise[0] = cipher; | |
956 | } | |
fffd0934 JB |
957 | } |
958 | } | |
959 | ||
ceca7b71 JB |
960 | wdev->connect_keys = connkeys; |
961 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
962 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 963 | |
ceca7b71 JB |
964 | if (!rdev->ops->connect) |
965 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
966 | else | |
e35e4d28 | 967 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 968 | |
ceca7b71 JB |
969 | if (err) { |
970 | wdev->connect_keys = NULL; | |
971 | wdev->ssid_len = 0; | |
972 | return err; | |
6829c878 | 973 | } |
ceca7b71 JB |
974 | |
975 | return 0; | |
b23aa676 SO |
976 | } |
977 | ||
83739b03 JB |
978 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
979 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 980 | { |
6829c878 | 981 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 982 | int err = 0; |
b23aa676 | 983 | |
667503dd JB |
984 | ASSERT_WDEV_LOCK(wdev); |
985 | ||
b47f610b | 986 | kzfree(wdev->connect_keys); |
fffd0934 JB |
987 | wdev->connect_keys = NULL; |
988 | ||
dee8a973 | 989 | if (wdev->conn) |
ceca7b71 | 990 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 991 | else if (!rdev->ops->disconnect) |
ceca7b71 | 992 | cfg80211_mlme_down(rdev, dev); |
dee8a973 | 993 | else if (wdev->current_bss) |
e35e4d28 | 994 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 995 | |
ceca7b71 | 996 | return err; |
19957bb3 | 997 | } |