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 JB |
259 | struct cfg80211_bss *bss; |
260 | u16 capa = WLAN_CAPABILITY_ESS; | |
261 | ||
667503dd JB |
262 | ASSERT_WDEV_LOCK(wdev); |
263 | ||
6829c878 JB |
264 | if (wdev->conn->params.privacy) |
265 | capa |= WLAN_CAPABILITY_PRIVACY; | |
266 | ||
ed9d0102 JM |
267 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
268 | wdev->conn->params.bssid, | |
6829c878 JB |
269 | wdev->conn->params.ssid, |
270 | wdev->conn->params.ssid_len, | |
271 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
272 | capa); | |
6829c878 | 273 | if (!bss) |
bbac31f4 | 274 | return NULL; |
6829c878 JB |
275 | |
276 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
277 | wdev->conn->params.bssid = wdev->conn->bssid; | |
278 | wdev->conn->params.channel = bss->channel; | |
279 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 280 | schedule_work(&rdev->conn_work); |
6829c878 | 281 | |
bbac31f4 | 282 | return bss; |
6829c878 JB |
283 | } |
284 | ||
667503dd | 285 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
286 | { |
287 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 288 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 289 | struct cfg80211_bss *bss; |
6829c878 | 290 | |
667503dd JB |
291 | ASSERT_WDEV_LOCK(wdev); |
292 | ||
d4b1a687 | 293 | if (!wdev->conn) |
6829c878 JB |
294 | return; |
295 | ||
296 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
297 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
298 | return; | |
299 | ||
bbac31f4 | 300 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 301 | if (bss) |
5b112d3d | 302 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
303 | else |
304 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
305 | } |
306 | ||
667503dd JB |
307 | void cfg80211_sme_scan_done(struct net_device *dev) |
308 | { | |
309 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
310 | ||
311 | wdev_lock(wdev); | |
312 | __cfg80211_sme_scan_done(dev); | |
313 | wdev_unlock(wdev); | |
314 | } | |
315 | ||
ceca7b71 | 316 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 317 | { |
6829c878 | 318 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 319 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
320 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
321 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
322 | ||
667503dd JB |
323 | ASSERT_WDEV_LOCK(wdev); |
324 | ||
ceca7b71 | 325 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
326 | return; |
327 | ||
328 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
329 | wdev->conn->auto_auth && | |
330 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
331 | /* select automatically between only open, shared, leap */ | |
332 | switch (wdev->conn->params.auth_type) { | |
333 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
334 | if (wdev->connect_keys) |
335 | wdev->conn->params.auth_type = | |
336 | NL80211_AUTHTYPE_SHARED_KEY; | |
337 | else | |
338 | wdev->conn->params.auth_type = | |
339 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
340 | break; |
341 | case NL80211_AUTHTYPE_SHARED_KEY: | |
342 | wdev->conn->params.auth_type = | |
343 | NL80211_AUTHTYPE_NETWORK_EAP; | |
344 | break; | |
345 | default: | |
346 | /* huh? */ | |
347 | wdev->conn->params.auth_type = | |
348 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
349 | break; | |
350 | } | |
351 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
352 | schedule_work(&rdev->conn_work); | |
19957bb3 | 353 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
354 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
355 | NULL, 0, NULL, 0, | |
df7fc0f9 | 356 | status_code, false, NULL); |
ceca7b71 | 357 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
358 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
359 | schedule_work(&rdev->conn_work); | |
360 | } | |
361 | } | |
b23aa676 | 362 | |
ceca7b71 | 363 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 364 | { |
f26cbf40 | 365 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 366 | |
ceca7b71 | 367 | if (!wdev->conn) |
f401a6f7 JB |
368 | return false; |
369 | ||
ceca7b71 JB |
370 | if (status == WLAN_STATUS_SUCCESS) { |
371 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 372 | return false; |
ceca7b71 | 373 | } |
f401a6f7 | 374 | |
ceca7b71 JB |
375 | if (wdev->conn->prev_bssid_valid) { |
376 | /* | |
377 | * Some stupid APs don't accept reassoc, so we | |
378 | * need to fall back to trying regular assoc; | |
379 | * return true so no event is sent to userspace. | |
380 | */ | |
381 | wdev->conn->prev_bssid_valid = false; | |
382 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
383 | schedule_work(&rdev->conn_work); | |
384 | return true; | |
385 | } | |
386 | ||
923a0e7d | 387 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 388 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
389 | return false; |
390 | } | |
f401a6f7 | 391 | |
ceca7b71 JB |
392 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
393 | { | |
394 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
395 | } |
396 | ||
ceca7b71 | 397 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 398 | { |
f26cbf40 | 399 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
400 | |
401 | if (!wdev->conn) | |
402 | return; | |
403 | ||
404 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED; | |
405 | schedule_work(&rdev->conn_work); | |
ceca7b71 | 406 | } |
7d930bc3 | 407 | |
ceca7b71 JB |
408 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
409 | { | |
f26cbf40 | 410 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
411 | |
412 | if (!wdev->conn) | |
413 | return; | |
414 | ||
415 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
416 | schedule_work(&rdev->conn_work); |
417 | } | |
418 | ||
ceca7b71 JB |
419 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
420 | { | |
f26cbf40 | 421 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
422 | |
423 | if (!wdev->conn) | |
424 | return; | |
425 | ||
426 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; | |
427 | schedule_work(&rdev->conn_work); | |
ceca7b71 JB |
428 | } |
429 | ||
430 | static int cfg80211_sme_connect(struct wireless_dev *wdev, | |
431 | struct cfg80211_connect_params *connect, | |
432 | const u8 *prev_bssid) | |
433 | { | |
f26cbf40 | 434 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
435 | struct cfg80211_bss *bss; |
436 | int err; | |
437 | ||
438 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
439 | return -EOPNOTSUPP; | |
440 | ||
441 | if (wdev->current_bss) | |
442 | return -EALREADY; | |
443 | ||
444 | if (WARN_ON(wdev->conn)) | |
445 | return -EINPROGRESS; | |
446 | ||
447 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
448 | if (!wdev->conn) | |
449 | return -ENOMEM; | |
450 | ||
451 | /* | |
452 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
453 | */ | |
454 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
455 | if (connect->bssid) { | |
456 | wdev->conn->params.bssid = wdev->conn->bssid; | |
457 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
458 | } | |
459 | ||
460 | if (connect->ie) { | |
461 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
462 | GFP_KERNEL); | |
463 | wdev->conn->params.ie = wdev->conn->ie; | |
464 | if (!wdev->conn->ie) { | |
465 | kfree(wdev->conn); | |
466 | wdev->conn = NULL; | |
467 | return -ENOMEM; | |
468 | } | |
469 | } | |
470 | ||
471 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
472 | wdev->conn->auto_auth = true; | |
473 | /* start with open system ... should mostly work */ | |
474 | wdev->conn->params.auth_type = | |
475 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
476 | } else { | |
477 | wdev->conn->auto_auth = false; | |
478 | } | |
479 | ||
480 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 481 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
482 | |
483 | /* see if we have the bss already */ | |
484 | bss = cfg80211_get_conn_bss(wdev); | |
485 | ||
486 | if (prev_bssid) { | |
487 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
488 | wdev->conn->prev_bssid_valid = true; | |
489 | } | |
490 | ||
491 | /* we're good if we have a matching bss struct */ | |
492 | if (bss) { | |
ceca7b71 JB |
493 | err = cfg80211_conn_do_work(wdev); |
494 | cfg80211_put_bss(wdev->wiphy, bss); | |
495 | } else { | |
496 | /* otherwise we'll need to scan for the AP first */ | |
497 | err = cfg80211_conn_scan(wdev); | |
498 | ||
499 | /* | |
500 | * If we can't scan right now, then we need to scan again | |
501 | * after the current scan finished, since the parameters | |
502 | * changed (unless we find a good AP anyway). | |
503 | */ | |
504 | if (err == -EBUSY) { | |
505 | err = 0; | |
506 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
507 | } | |
508 | } | |
509 | ||
510 | if (err) | |
511 | cfg80211_sme_free(wdev); | |
512 | ||
513 | return err; | |
514 | } | |
515 | ||
516 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
517 | { | |
f26cbf40 | 518 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
519 | int err; |
520 | ||
521 | if (!wdev->conn) | |
522 | return 0; | |
523 | ||
524 | if (!rdev->ops->deauth) | |
525 | return -EOPNOTSUPP; | |
526 | ||
527 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
528 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
529 | err = 0; | |
530 | goto out; | |
531 | } | |
532 | ||
533 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
534 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
535 | wdev->conn->params.bssid, | |
536 | NULL, 0, reason, false); | |
537 | out: | |
538 | cfg80211_sme_free(wdev); | |
539 | return err; | |
540 | } | |
541 | ||
542 | /* | |
543 | * code shared for in-device and software SME | |
544 | */ | |
545 | ||
546 | static bool cfg80211_is_all_idle(void) | |
547 | { | |
548 | struct cfg80211_registered_device *rdev; | |
549 | struct wireless_dev *wdev; | |
550 | bool is_all_idle = true; | |
551 | ||
552 | /* | |
553 | * All devices must be idle as otherwise if you are actively | |
554 | * scanning some new beacon hints could be learned and would | |
555 | * count as new regulatory hints. | |
556 | */ | |
557 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
558 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
559 | wdev_lock(wdev); | |
560 | if (wdev->conn || wdev->current_bss) | |
561 | is_all_idle = false; | |
562 | wdev_unlock(wdev); | |
563 | } | |
564 | } | |
565 | ||
566 | return is_all_idle; | |
567 | } | |
568 | ||
569 | static void disconnect_work(struct work_struct *work) | |
570 | { | |
571 | rtnl_lock(); | |
572 | if (cfg80211_is_all_idle()) | |
573 | regulatory_hint_disconnect(); | |
574 | rtnl_unlock(); | |
575 | } | |
576 | ||
577 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
578 | ||
579 | ||
580 | /* | |
581 | * API calls for drivers implementing connect/disconnect and | |
582 | * SME event handling | |
583 | */ | |
584 | ||
6f390908 | 585 | /* This method must consume bss one way or another */ |
667503dd JB |
586 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
587 | const u8 *req_ie, size_t req_ie_len, | |
588 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
589 | u16 status, bool wextev, |
590 | struct cfg80211_bss *bss) | |
b23aa676 SO |
591 | { |
592 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 593 | const u8 *country_ie; |
3d23e349 | 594 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
595 | union iwreq_data wrqu; |
596 | #endif | |
597 | ||
667503dd JB |
598 | ASSERT_WDEV_LOCK(wdev); |
599 | ||
074ac8df | 600 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
601 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
602 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 603 | return; |
6f390908 | 604 | } |
b23aa676 | 605 | |
f26cbf40 | 606 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, |
e45cd82a | 607 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
608 | resp_ie, resp_ie_len, |
609 | status, GFP_KERNEL); | |
e45cd82a | 610 | |
3d23e349 | 611 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
612 | if (wextev) { |
613 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
614 | memset(&wrqu, 0, sizeof(wrqu)); | |
615 | wrqu.data.length = req_ie_len; | |
3409ff77 | 616 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
617 | } |
618 | ||
619 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
620 | memset(&wrqu, 0, sizeof(wrqu)); | |
621 | wrqu.data.length = resp_ie_len; | |
622 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
623 | } | |
624 | ||
625 | memset(&wrqu, 0, sizeof(wrqu)); | |
626 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 627 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 628 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
629 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
630 | wdev->wext.prev_bssid_valid = true; | |
631 | } | |
e45cd82a JB |
632 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
633 | } | |
634 | #endif | |
635 | ||
4c4d684a | 636 | if (!bss && (status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 637 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
4c4d684a UR |
638 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
639 | wdev->ssid, wdev->ssid_len, | |
640 | WLAN_CAPABILITY_ESS, | |
641 | WLAN_CAPABILITY_ESS); | |
642 | if (bss) | |
643 | cfg80211_hold_bss(bss_from_pub(bss)); | |
644 | } | |
645 | ||
df7fc0f9 JB |
646 | if (wdev->current_bss) { |
647 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 648 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
649 | wdev->current_bss = NULL; |
650 | } | |
651 | ||
fffd0934 | 652 | if (status != WLAN_STATUS_SUCCESS) { |
b47f610b | 653 | kzfree(wdev->connect_keys); |
fffd0934 | 654 | wdev->connect_keys = NULL; |
8dadadb7 | 655 | wdev->ssid_len = 0; |
f1940c57 JB |
656 | if (bss) { |
657 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
658 | cfg80211_put_bss(wdev->wiphy, bss); | |
659 | } | |
c1fbb258 | 660 | cfg80211_sme_free(wdev); |
fffd0934 | 661 | return; |
b23aa676 | 662 | } |
fffd0934 | 663 | |
4c4d684a UR |
664 | if (WARN_ON(!bss)) |
665 | return; | |
fffd0934 | 666 | |
fffd0934 JB |
667 | wdev->current_bss = bss_from_pub(bss); |
668 | ||
fffd0934 | 669 | cfg80211_upload_connect_keys(wdev); |
8b19e6ca | 670 | |
9caf0364 JB |
671 | rcu_read_lock(); |
672 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
673 | if (!country_ie) { | |
674 | rcu_read_unlock(); | |
675 | return; | |
676 | } | |
677 | ||
678 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
679 | rcu_read_unlock(); | |
8b19e6ca LR |
680 | |
681 | if (!country_ie) | |
682 | return; | |
683 | ||
684 | /* | |
685 | * ieee80211_bss_get_ie() ensures we can access: | |
686 | * - country_ie + 2, the start of the country ie data, and | |
687 | * - and country_ie[1] which is the IE length | |
688 | */ | |
789fd033 LR |
689 | regulatory_hint_country_ie(wdev->wiphy, bss->channel->band, |
690 | country_ie + 2, country_ie[1]); | |
9caf0364 | 691 | kfree(country_ie); |
b23aa676 | 692 | } |
f2129354 JB |
693 | |
694 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
695 | const u8 *req_ie, size_t req_ie_len, | |
696 | const u8 *resp_ie, size_t resp_ie_len, | |
697 | u16 status, gfp_t gfp) | |
698 | { | |
667503dd | 699 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 700 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
701 | struct cfg80211_event *ev; |
702 | unsigned long flags; | |
703 | ||
704 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); | |
705 | if (!ev) | |
706 | return; | |
707 | ||
708 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
709 | if (bssid) |
710 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
711 | if (req_ie_len) { |
712 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
713 | ev->cr.req_ie_len = req_ie_len; | |
714 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
715 | } | |
716 | if (resp_ie_len) { | |
717 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
718 | ev->cr.resp_ie_len = resp_ie_len; | |
719 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
720 | } | |
667503dd JB |
721 | ev->cr.status = status; |
722 | ||
723 | spin_lock_irqsave(&wdev->event_lock, flags); | |
724 | list_add_tail(&ev->list, &wdev->event_list); | |
725 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 726 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 727 | } |
b23aa676 SO |
728 | EXPORT_SYMBOL(cfg80211_connect_result); |
729 | ||
0e3a39b5 | 730 | /* Consumes bss object one way or another */ |
ed9d0102 | 731 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 732 | struct cfg80211_bss *bss, |
667503dd JB |
733 | const u8 *req_ie, size_t req_ie_len, |
734 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 735 | { |
3d23e349 | 736 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
737 | union iwreq_data wrqu; |
738 | #endif | |
667503dd JB |
739 | ASSERT_WDEV_LOCK(wdev); |
740 | ||
074ac8df JB |
741 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
742 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 743 | goto out; |
b23aa676 | 744 | |
ceca7b71 | 745 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 746 | goto out; |
b23aa676 SO |
747 | |
748 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 749 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
750 | wdev->current_bss = NULL; |
751 | ||
19957bb3 JB |
752 | cfg80211_hold_bss(bss_from_pub(bss)); |
753 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 754 | |
f26cbf40 ZG |
755 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
756 | wdev->netdev, bss->bssid, | |
667503dd JB |
757 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
758 | GFP_KERNEL); | |
b23aa676 | 759 | |
3d23e349 | 760 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
761 | if (req_ie) { |
762 | memset(&wrqu, 0, sizeof(wrqu)); | |
763 | wrqu.data.length = req_ie_len; | |
3409ff77 | 764 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 765 | &wrqu, req_ie); |
b23aa676 SO |
766 | } |
767 | ||
768 | if (resp_ie) { | |
769 | memset(&wrqu, 0, sizeof(wrqu)); | |
770 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
771 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
772 | &wrqu, resp_ie); | |
b23aa676 SO |
773 | } |
774 | ||
775 | memset(&wrqu, 0, sizeof(wrqu)); | |
776 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
777 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
778 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 779 | wdev->wext.prev_bssid_valid = true; |
667503dd | 780 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 781 | #endif |
adbde344 VT |
782 | |
783 | return; | |
784 | out: | |
5b112d3d | 785 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 786 | } |
667503dd | 787 | |
ed9d0102 JM |
788 | void cfg80211_roamed(struct net_device *dev, |
789 | struct ieee80211_channel *channel, | |
790 | const u8 *bssid, | |
667503dd JB |
791 | const u8 *req_ie, size_t req_ie_len, |
792 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
793 | { |
794 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
795 | struct cfg80211_bss *bss; | |
796 | ||
adbde344 VT |
797 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
798 | wdev->ssid_len, WLAN_CAPABILITY_ESS, | |
799 | WLAN_CAPABILITY_ESS); | |
800 | if (WARN_ON(!bss)) | |
801 | return; | |
802 | ||
803 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
804 | resp_ie_len, gfp); | |
805 | } | |
806 | EXPORT_SYMBOL(cfg80211_roamed); | |
807 | ||
0e3a39b5 | 808 | /* Consumes bss object one way or another */ |
adbde344 VT |
809 | void cfg80211_roamed_bss(struct net_device *dev, |
810 | struct cfg80211_bss *bss, const u8 *req_ie, | |
811 | size_t req_ie_len, const u8 *resp_ie, | |
812 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
813 | { |
814 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 815 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
816 | struct cfg80211_event *ev; |
817 | unsigned long flags; | |
818 | ||
adbde344 VT |
819 | if (WARN_ON(!bss)) |
820 | return; | |
821 | ||
667503dd | 822 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 823 | if (!ev) { |
5b112d3d | 824 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 825 | return; |
adbde344 | 826 | } |
667503dd JB |
827 | |
828 | ev->type = EVENT_ROAMED; | |
667503dd JB |
829 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
830 | ev->rm.req_ie_len = req_ie_len; | |
831 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
832 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
833 | ev->rm.resp_ie_len = resp_ie_len; | |
834 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 835 | ev->rm.bss = bss; |
667503dd JB |
836 | |
837 | spin_lock_irqsave(&wdev->event_lock, flags); | |
838 | list_add_tail(&ev->list, &wdev->event_list); | |
839 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 840 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 841 | } |
adbde344 | 842 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 843 | |
667503dd | 844 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 845 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
846 | { |
847 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 848 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 849 | int i; |
3d23e349 | 850 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
851 | union iwreq_data wrqu; |
852 | #endif | |
853 | ||
667503dd JB |
854 | ASSERT_WDEV_LOCK(wdev); |
855 | ||
074ac8df JB |
856 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
857 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
858 | return; |
859 | ||
b23aa676 SO |
860 | if (wdev->current_bss) { |
861 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 862 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
863 | } |
864 | ||
865 | wdev->current_bss = NULL; | |
8dadadb7 | 866 | wdev->ssid_len = 0; |
b23aa676 | 867 | |
fffd0934 JB |
868 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
869 | ||
870 | /* | |
871 | * Delete all the keys ... pairwise keys can't really | |
872 | * exist any more anyway, but default keys might. | |
873 | */ | |
874 | if (rdev->ops->del_key) | |
875 | for (i = 0; i < 6; i++) | |
e35e4d28 | 876 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 877 | |
fa9ffc74 KP |
878 | rdev_set_qos_map(rdev, dev, NULL); |
879 | ||
3d23e349 | 880 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
881 | memset(&wrqu, 0, sizeof(wrqu)); |
882 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
883 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 884 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 885 | #endif |
09d989d1 LR |
886 | |
887 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
888 | } |
889 | ||
890 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
c1e5f471 | 891 | const u8 *ie, size_t ie_len, gfp_t gfp) |
b23aa676 | 892 | { |
667503dd | 893 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 894 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
895 | struct cfg80211_event *ev; |
896 | unsigned long flags; | |
897 | ||
898 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
899 | if (!ev) | |
900 | return; | |
901 | ||
902 | ev->type = EVENT_DISCONNECTED; | |
903 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
904 | ev->dc.ie_len = ie_len; | |
905 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
906 | ev->dc.reason = reason; | |
907 | ||
908 | spin_lock_irqsave(&wdev->event_lock, flags); | |
909 | list_add_tail(&ev->list, &wdev->event_list); | |
910 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 911 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
912 | } |
913 | EXPORT_SYMBOL(cfg80211_disconnected); | |
914 | ||
ceca7b71 JB |
915 | /* |
916 | * API calls for nl80211/wext compatibility code | |
917 | */ | |
83739b03 JB |
918 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
919 | struct net_device *dev, | |
920 | struct cfg80211_connect_params *connect, | |
921 | struct cfg80211_cached_keys *connkeys, | |
922 | const u8 *prev_bssid) | |
b23aa676 | 923 | { |
b23aa676 | 924 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
925 | int err; |
926 | ||
927 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 928 | |
fffd0934 | 929 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 930 | kzfree(wdev->connect_keys); |
fffd0934 JB |
931 | wdev->connect_keys = NULL; |
932 | } | |
933 | ||
7e7c8926 BG |
934 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
935 | rdev->wiphy.ht_capa_mod_mask); | |
936 | ||
fffd0934 JB |
937 | if (connkeys && connkeys->def >= 0) { |
938 | int idx; | |
bcba8eae | 939 | u32 cipher; |
fffd0934 JB |
940 | |
941 | idx = connkeys->def; | |
bcba8eae | 942 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 943 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
944 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
945 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
946 | connect->key_idx = idx; |
947 | connect->key = connkeys->params[idx].key; | |
948 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
949 | |
950 | /* | |
951 | * If ciphers are not set (e.g. when going through | |
952 | * iwconfig), we have to set them appropriately here. | |
953 | */ | |
954 | if (connect->crypto.cipher_group == 0) | |
955 | connect->crypto.cipher_group = cipher; | |
956 | ||
957 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
958 | connect->crypto.n_ciphers_pairwise = 1; | |
959 | connect->crypto.ciphers_pairwise[0] = cipher; | |
960 | } | |
fffd0934 JB |
961 | } |
962 | } | |
963 | ||
ceca7b71 JB |
964 | wdev->connect_keys = connkeys; |
965 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
966 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 967 | |
ceca7b71 JB |
968 | if (!rdev->ops->connect) |
969 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
970 | else | |
e35e4d28 | 971 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 972 | |
ceca7b71 JB |
973 | if (err) { |
974 | wdev->connect_keys = NULL; | |
975 | wdev->ssid_len = 0; | |
976 | return err; | |
6829c878 | 977 | } |
ceca7b71 JB |
978 | |
979 | return 0; | |
b23aa676 SO |
980 | } |
981 | ||
83739b03 JB |
982 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
983 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 984 | { |
6829c878 | 985 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 986 | int err = 0; |
b23aa676 | 987 | |
667503dd JB |
988 | ASSERT_WDEV_LOCK(wdev); |
989 | ||
b47f610b | 990 | kzfree(wdev->connect_keys); |
fffd0934 JB |
991 | wdev->connect_keys = NULL; |
992 | ||
dee8a973 | 993 | if (wdev->conn) |
ceca7b71 | 994 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 995 | else if (!rdev->ops->disconnect) |
ceca7b71 | 996 | cfg80211_mlme_down(rdev, dev); |
dee8a973 | 997 | else if (wdev->current_bss) |
e35e4d28 | 998 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 999 | |
ceca7b71 | 1000 | return err; |
19957bb3 | 1001 | } |