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Commit | Line | Data |
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b23aa676 SO |
1 | /* |
2 | * SME code for cfg80211's connect emulation. | |
3 | * | |
4 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
5 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
6 | */ | |
7 | ||
8 | #include <linux/etherdevice.h> | |
9 | #include <linux/if_arp.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
b23aa676 | 11 | #include <linux/workqueue.h> |
a9a11622 | 12 | #include <linux/wireless.h> |
bc3b2d7f | 13 | #include <linux/export.h> |
a9a11622 | 14 | #include <net/iw_handler.h> |
b23aa676 SO |
15 | #include <net/cfg80211.h> |
16 | #include <net/rtnetlink.h> | |
17 | #include "nl80211.h" | |
8b19e6ca | 18 | #include "reg.h" |
e35e4d28 | 19 | #include "rdev-ops.h" |
b23aa676 | 20 | |
6829c878 JB |
21 | struct cfg80211_conn { |
22 | struct cfg80211_connect_params params; | |
23 | /* these are sub-states of the _CONNECTING sme_state */ | |
24 | enum { | |
25 | CFG80211_CONN_IDLE, | |
26 | CFG80211_CONN_SCANNING, | |
27 | CFG80211_CONN_SCAN_AGAIN, | |
28 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
29 | CFG80211_CONN_AUTHENTICATING, | |
30 | CFG80211_CONN_ASSOCIATE_NEXT, | |
31 | CFG80211_CONN_ASSOCIATING, | |
7d930bc3 | 32 | CFG80211_CONN_DEAUTH_ASSOC_FAIL, |
6829c878 | 33 | } state; |
f401a6f7 | 34 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
35 | u8 *ie; |
36 | size_t ie_len; | |
f401a6f7 | 37 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
38 | }; |
39 | ||
20925fee | 40 | static bool cfg80211_is_all_idle(void) |
09d989d1 LR |
41 | { |
42 | struct cfg80211_registered_device *rdev; | |
43 | struct wireless_dev *wdev; | |
44 | bool is_all_idle = true; | |
45 | ||
46 | mutex_lock(&cfg80211_mutex); | |
47 | ||
48 | /* | |
49 | * All devices must be idle as otherwise if you are actively | |
50 | * scanning some new beacon hints could be learned and would | |
51 | * count as new regulatory hints. | |
52 | */ | |
53 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
54 | cfg80211_lock_rdev(rdev); | |
89a54e48 | 55 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
09d989d1 LR |
56 | wdev_lock(wdev); |
57 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
58 | is_all_idle = false; | |
59 | wdev_unlock(wdev); | |
60 | } | |
61 | cfg80211_unlock_rdev(rdev); | |
62 | } | |
63 | ||
64 | mutex_unlock(&cfg80211_mutex); | |
65 | ||
66 | return is_all_idle; | |
67 | } | |
68 | ||
69 | static void disconnect_work(struct work_struct *work) | |
70 | { | |
71 | if (!cfg80211_is_all_idle()) | |
72 | return; | |
73 | ||
74 | regulatory_hint_disconnect(); | |
75 | } | |
76 | ||
77 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
6829c878 JB |
78 | |
79 | static int cfg80211_conn_scan(struct wireless_dev *wdev) | |
80 | { | |
79c97e97 | 81 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
82 | struct cfg80211_scan_request *request; |
83 | int n_channels, err; | |
84 | ||
85 | ASSERT_RTNL(); | |
79c97e97 | 86 | ASSERT_RDEV_LOCK(rdev); |
667503dd | 87 | ASSERT_WDEV_LOCK(wdev); |
f9f47529 | 88 | lockdep_assert_held(&rdev->sched_scan_mtx); |
6829c878 | 89 | |
79c97e97 | 90 | if (rdev->scan_req) |
6829c878 JB |
91 | return -EBUSY; |
92 | ||
93 | if (wdev->conn->params.channel) { | |
94 | n_channels = 1; | |
95 | } else { | |
96 | enum ieee80211_band band; | |
97 | n_channels = 0; | |
98 | ||
99 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
100 | if (!wdev->wiphy->bands[band]) | |
101 | continue; | |
102 | n_channels += wdev->wiphy->bands[band]->n_channels; | |
103 | } | |
104 | } | |
105 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + | |
106 | sizeof(request->channels[0]) * n_channels, | |
107 | GFP_KERNEL); | |
108 | if (!request) | |
109 | return -ENOMEM; | |
110 | ||
6829c878 JB |
111 | if (wdev->conn->params.channel) |
112 | request->channels[0] = wdev->conn->params.channel; | |
113 | else { | |
114 | int i = 0, j; | |
115 | enum ieee80211_band band; | |
e3081501 RM |
116 | struct ieee80211_supported_band *bands; |
117 | struct ieee80211_channel *channel; | |
6829c878 JB |
118 | |
119 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
120 | bands = wdev->wiphy->bands[band]; |
121 | if (!bands) | |
6829c878 | 122 | continue; |
e3081501 RM |
123 | for (j = 0; j < bands->n_channels; j++) { |
124 | channel = &bands->channels[j]; | |
125 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
126 | continue; | |
127 | request->channels[i++] = channel; | |
128 | } | |
129 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 130 | } |
e3081501 | 131 | n_channels = i; |
6829c878 JB |
132 | } |
133 | request->n_channels = n_channels; | |
5ba63533 | 134 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
135 | request->n_ssids = 1; |
136 | ||
137 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
138 | wdev->conn->params.ssid_len); | |
139 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
140 | ||
fd014284 | 141 | request->wdev = wdev; |
79c97e97 | 142 | request->wiphy = &rdev->wiphy; |
15d6030b | 143 | request->scan_start = jiffies; |
6829c878 | 144 | |
79c97e97 | 145 | rdev->scan_req = request; |
6829c878 | 146 | |
e35e4d28 | 147 | err = rdev_scan(rdev, request); |
6829c878 JB |
148 | if (!err) { |
149 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 150 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 151 | dev_hold(wdev->netdev); |
6829c878 | 152 | } else { |
79c97e97 | 153 | rdev->scan_req = NULL; |
6829c878 JB |
154 | kfree(request); |
155 | } | |
156 | return err; | |
157 | } | |
158 | ||
159 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
160 | { | |
79c97e97 | 161 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 162 | struct cfg80211_connect_params *params; |
f401a6f7 | 163 | const u8 *prev_bssid = NULL; |
19957bb3 | 164 | int err; |
6829c878 | 165 | |
667503dd JB |
166 | ASSERT_WDEV_LOCK(wdev); |
167 | ||
6829c878 JB |
168 | if (!wdev->conn) |
169 | return 0; | |
170 | ||
19957bb3 JB |
171 | params = &wdev->conn->params; |
172 | ||
6829c878 JB |
173 | switch (wdev->conn->state) { |
174 | case CFG80211_CONN_SCAN_AGAIN: | |
175 | return cfg80211_conn_scan(wdev); | |
176 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 177 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 178 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 179 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
180 | params->channel, params->auth_type, |
181 | params->bssid, | |
182 | params->ssid, params->ssid_len, | |
fffd0934 JB |
183 | NULL, 0, |
184 | params->key, params->key_len, | |
e39e5b5e | 185 | params->key_idx, NULL, 0); |
6829c878 | 186 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 187 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 188 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
189 | if (wdev->conn->prev_bssid_valid) |
190 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 191 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 192 | params->channel, params->bssid, |
f401a6f7 | 193 | prev_bssid, |
667503dd JB |
194 | params->ssid, params->ssid_len, |
195 | params->ie, params->ie_len, | |
cee00a95 JM |
196 | params->mfp != NL80211_MFP_NO, |
197 | ¶ms->crypto, | |
7e7c8926 BG |
198 | params->flags, ¶ms->ht_capa, |
199 | ¶ms->ht_capa_mask); | |
19957bb3 | 200 | if (err) |
79c97e97 | 201 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd | 202 | NULL, 0, |
d5cdfacb JM |
203 | WLAN_REASON_DEAUTH_LEAVING, |
204 | false); | |
19957bb3 | 205 | return err; |
7d930bc3 JB |
206 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
207 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
208 | NULL, 0, | |
d5cdfacb | 209 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
210 | /* return an error so that we call __cfg80211_connect_result() */ |
211 | return -EINVAL; | |
6829c878 JB |
212 | default: |
213 | return 0; | |
214 | } | |
215 | } | |
216 | ||
217 | void cfg80211_conn_work(struct work_struct *work) | |
218 | { | |
79c97e97 | 219 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
220 | container_of(work, struct cfg80211_registered_device, conn_work); |
221 | struct wireless_dev *wdev; | |
7400f42e | 222 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
223 | |
224 | rtnl_lock(); | |
79c97e97 JB |
225 | cfg80211_lock_rdev(rdev); |
226 | mutex_lock(&rdev->devlist_mtx); | |
90e0970f | 227 | mutex_lock(&rdev->sched_scan_mtx); |
6829c878 | 228 | |
89a54e48 | 229 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
667503dd JB |
230 | wdev_lock(wdev); |
231 | if (!netif_running(wdev->netdev)) { | |
232 | wdev_unlock(wdev); | |
6829c878 | 233 | continue; |
667503dd JB |
234 | } |
235 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
236 | wdev_unlock(wdev); | |
6829c878 | 237 | continue; |
667503dd | 238 | } |
7400f42e JB |
239 | if (wdev->conn->params.bssid) { |
240 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
241 | bssid = bssid_buf; | |
242 | } | |
6829c878 | 243 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 244 | __cfg80211_connect_result( |
7d930bc3 | 245 | wdev->netdev, bssid, |
667503dd JB |
246 | NULL, 0, NULL, 0, |
247 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 248 | false, NULL); |
667503dd | 249 | wdev_unlock(wdev); |
6829c878 JB |
250 | } |
251 | ||
90e0970f | 252 | mutex_unlock(&rdev->sched_scan_mtx); |
79c97e97 JB |
253 | mutex_unlock(&rdev->devlist_mtx); |
254 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
255 | rtnl_unlock(); |
256 | } | |
257 | ||
bbac31f4 | 258 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 259 | { |
79c97e97 | 260 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
261 | struct cfg80211_bss *bss; |
262 | u16 capa = WLAN_CAPABILITY_ESS; | |
263 | ||
667503dd JB |
264 | ASSERT_WDEV_LOCK(wdev); |
265 | ||
6829c878 JB |
266 | if (wdev->conn->params.privacy) |
267 | capa |= WLAN_CAPABILITY_PRIVACY; | |
268 | ||
ed9d0102 JM |
269 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
270 | wdev->conn->params.bssid, | |
6829c878 JB |
271 | wdev->conn->params.ssid, |
272 | wdev->conn->params.ssid_len, | |
273 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
274 | capa); | |
6829c878 | 275 | if (!bss) |
bbac31f4 | 276 | return NULL; |
6829c878 JB |
277 | |
278 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
279 | wdev->conn->params.bssid = wdev->conn->bssid; | |
280 | wdev->conn->params.channel = bss->channel; | |
281 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 282 | schedule_work(&rdev->conn_work); |
6829c878 | 283 | |
bbac31f4 | 284 | return bss; |
6829c878 JB |
285 | } |
286 | ||
667503dd | 287 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
288 | { |
289 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 290 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 291 | struct cfg80211_bss *bss; |
6829c878 | 292 | |
667503dd JB |
293 | ASSERT_WDEV_LOCK(wdev); |
294 | ||
6829c878 JB |
295 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
296 | return; | |
297 | ||
d4b1a687 | 298 | if (!wdev->conn) |
6829c878 JB |
299 | return; |
300 | ||
301 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
302 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
303 | return; | |
304 | ||
bbac31f4 JB |
305 | bss = cfg80211_get_conn_bss(wdev); |
306 | if (bss) { | |
5b112d3d | 307 | cfg80211_put_bss(&rdev->wiphy, bss); |
bbac31f4 | 308 | } else { |
6829c878 JB |
309 | /* not found */ |
310 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 311 | schedule_work(&rdev->conn_work); |
6829c878 | 312 | else |
667503dd JB |
313 | __cfg80211_connect_result( |
314 | wdev->netdev, | |
315 | wdev->conn->params.bssid, | |
316 | NULL, 0, NULL, 0, | |
317 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 318 | false, NULL); |
6829c878 JB |
319 | } |
320 | } | |
321 | ||
667503dd JB |
322 | void cfg80211_sme_scan_done(struct net_device *dev) |
323 | { | |
324 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
325 | ||
326 | wdev_lock(wdev); | |
327 | __cfg80211_sme_scan_done(dev); | |
328 | wdev_unlock(wdev); | |
329 | } | |
330 | ||
331 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
332 | const u8 *buf, size_t len) | |
6829c878 JB |
333 | { |
334 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
335 | struct wiphy *wiphy = wdev->wiphy; | |
336 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
337 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
338 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
339 | ||
667503dd JB |
340 | ASSERT_WDEV_LOCK(wdev); |
341 | ||
6829c878 JB |
342 | /* should only RX auth frames when connecting */ |
343 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
344 | return; | |
345 | ||
346 | if (WARN_ON(!wdev->conn)) | |
347 | return; | |
348 | ||
349 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
350 | wdev->conn->auto_auth && | |
351 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
352 | /* select automatically between only open, shared, leap */ | |
353 | switch (wdev->conn->params.auth_type) { | |
354 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
355 | if (wdev->connect_keys) |
356 | wdev->conn->params.auth_type = | |
357 | NL80211_AUTHTYPE_SHARED_KEY; | |
358 | else | |
359 | wdev->conn->params.auth_type = | |
360 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
361 | break; |
362 | case NL80211_AUTHTYPE_SHARED_KEY: | |
363 | wdev->conn->params.auth_type = | |
364 | NL80211_AUTHTYPE_NETWORK_EAP; | |
365 | break; | |
366 | default: | |
367 | /* huh? */ | |
368 | wdev->conn->params.auth_type = | |
369 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
370 | break; | |
371 | } | |
372 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
373 | schedule_work(&rdev->conn_work); | |
19957bb3 | 374 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 375 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 376 | status_code, false, NULL); |
19957bb3 | 377 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
378 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
379 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
380 | schedule_work(&rdev->conn_work); | |
381 | } | |
382 | } | |
b23aa676 | 383 | |
f401a6f7 JB |
384 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
385 | { | |
386 | struct wiphy *wiphy = wdev->wiphy; | |
387 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
388 | ||
389 | if (WARN_ON(!wdev->conn)) | |
390 | return false; | |
391 | ||
392 | if (!wdev->conn->prev_bssid_valid) | |
393 | return false; | |
394 | ||
395 | /* | |
396 | * Some stupid APs don't accept reassoc, so we | |
397 | * need to fall back to trying regular assoc. | |
398 | */ | |
399 | wdev->conn->prev_bssid_valid = false; | |
400 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
401 | schedule_work(&rdev->conn_work); | |
402 | ||
403 | return true; | |
404 | } | |
405 | ||
7d930bc3 JB |
406 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
407 | { | |
408 | struct wiphy *wiphy = wdev->wiphy; | |
409 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
410 | ||
411 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
412 | schedule_work(&rdev->conn_work); | |
413 | } | |
414 | ||
667503dd JB |
415 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
416 | const u8 *req_ie, size_t req_ie_len, | |
417 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
418 | u16 status, bool wextev, |
419 | struct cfg80211_bss *bss) | |
b23aa676 SO |
420 | { |
421 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 422 | const u8 *country_ie; |
3d23e349 | 423 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
424 | union iwreq_data wrqu; |
425 | #endif | |
426 | ||
667503dd JB |
427 | ASSERT_WDEV_LOCK(wdev); |
428 | ||
074ac8df JB |
429 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
430 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
431 | return; |
432 | ||
f7969969 | 433 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
434 | return; |
435 | ||
436 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 437 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
438 | resp_ie, resp_ie_len, |
439 | status, GFP_KERNEL); | |
e45cd82a | 440 | |
3d23e349 | 441 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
442 | if (wextev) { |
443 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
444 | memset(&wrqu, 0, sizeof(wrqu)); | |
445 | wrqu.data.length = req_ie_len; | |
3409ff77 | 446 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
447 | } |
448 | ||
449 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
450 | memset(&wrqu, 0, sizeof(wrqu)); | |
451 | wrqu.data.length = resp_ie_len; | |
452 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
453 | } | |
454 | ||
455 | memset(&wrqu, 0, sizeof(wrqu)); | |
456 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 457 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 458 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
459 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
460 | wdev->wext.prev_bssid_valid = true; | |
461 | } | |
e45cd82a JB |
462 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
463 | } | |
464 | #endif | |
465 | ||
df7fc0f9 JB |
466 | if (wdev->current_bss) { |
467 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 468 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
469 | wdev->current_bss = NULL; |
470 | } | |
471 | ||
19957bb3 JB |
472 | if (wdev->conn) |
473 | wdev->conn->state = CFG80211_CONN_IDLE; | |
474 | ||
fffd0934 | 475 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 476 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
477 | if (wdev->conn) |
478 | kfree(wdev->conn->ie); | |
19957bb3 JB |
479 | kfree(wdev->conn); |
480 | wdev->conn = NULL; | |
fffd0934 JB |
481 | kfree(wdev->connect_keys); |
482 | wdev->connect_keys = NULL; | |
8dadadb7 | 483 | wdev->ssid_len = 0; |
5b112d3d | 484 | cfg80211_put_bss(wdev->wiphy, bss); |
fffd0934 | 485 | return; |
b23aa676 | 486 | } |
fffd0934 | 487 | |
df7fc0f9 | 488 | if (!bss) |
ed9d0102 JM |
489 | bss = cfg80211_get_bss(wdev->wiphy, |
490 | wdev->conn ? wdev->conn->params.channel : | |
491 | NULL, | |
492 | bssid, | |
df7fc0f9 JB |
493 | wdev->ssid, wdev->ssid_len, |
494 | WLAN_CAPABILITY_ESS, | |
495 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
496 | |
497 | if (WARN_ON(!bss)) | |
498 | return; | |
499 | ||
500 | cfg80211_hold_bss(bss_from_pub(bss)); | |
501 | wdev->current_bss = bss_from_pub(bss); | |
502 | ||
fffd0934 JB |
503 | wdev->sme_state = CFG80211_SME_CONNECTED; |
504 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca | 505 | |
9caf0364 JB |
506 | rcu_read_lock(); |
507 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
508 | if (!country_ie) { | |
509 | rcu_read_unlock(); | |
510 | return; | |
511 | } | |
512 | ||
513 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
514 | rcu_read_unlock(); | |
8b19e6ca LR |
515 | |
516 | if (!country_ie) | |
517 | return; | |
518 | ||
519 | /* | |
520 | * ieee80211_bss_get_ie() ensures we can access: | |
521 | * - country_ie + 2, the start of the country ie data, and | |
522 | * - and country_ie[1] which is the IE length | |
523 | */ | |
1a919318 JB |
524 | regulatory_hint_11d(wdev->wiphy, bss->channel->band, |
525 | country_ie + 2, country_ie[1]); | |
9caf0364 | 526 | kfree(country_ie); |
b23aa676 | 527 | } |
f2129354 JB |
528 | |
529 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
530 | const u8 *req_ie, size_t req_ie_len, | |
531 | const u8 *resp_ie, size_t resp_ie_len, | |
532 | u16 status, gfp_t gfp) | |
533 | { | |
667503dd JB |
534 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
535 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
536 | struct cfg80211_event *ev; | |
537 | unsigned long flags; | |
538 | ||
f7969969 JB |
539 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
540 | ||
667503dd JB |
541 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
542 | if (!ev) | |
543 | return; | |
544 | ||
545 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
546 | if (bssid) |
547 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
548 | if (req_ie_len) { |
549 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
550 | ev->cr.req_ie_len = req_ie_len; | |
551 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
552 | } | |
553 | if (resp_ie_len) { | |
554 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
555 | ev->cr.resp_ie_len = resp_ie_len; | |
556 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
557 | } | |
667503dd JB |
558 | ev->cr.status = status; |
559 | ||
560 | spin_lock_irqsave(&wdev->event_lock, flags); | |
561 | list_add_tail(&ev->list, &wdev->event_list); | |
562 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 563 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 564 | } |
b23aa676 SO |
565 | EXPORT_SYMBOL(cfg80211_connect_result); |
566 | ||
ed9d0102 | 567 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 568 | struct cfg80211_bss *bss, |
667503dd JB |
569 | const u8 *req_ie, size_t req_ie_len, |
570 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 571 | { |
3d23e349 | 572 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
573 | union iwreq_data wrqu; |
574 | #endif | |
667503dd JB |
575 | ASSERT_WDEV_LOCK(wdev); |
576 | ||
074ac8df JB |
577 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
578 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 579 | goto out; |
b23aa676 | 580 | |
f7969969 | 581 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
adbde344 | 582 | goto out; |
b23aa676 SO |
583 | |
584 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
585 | if (WARN_ON(!wdev->current_bss)) { | |
adbde344 | 586 | goto out; |
b23aa676 SO |
587 | } |
588 | ||
589 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 590 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
591 | wdev->current_bss = NULL; |
592 | ||
19957bb3 JB |
593 | cfg80211_hold_bss(bss_from_pub(bss)); |
594 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 595 | |
adbde344 | 596 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bss->bssid, |
667503dd JB |
597 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
598 | GFP_KERNEL); | |
b23aa676 | 599 | |
3d23e349 | 600 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
601 | if (req_ie) { |
602 | memset(&wrqu, 0, sizeof(wrqu)); | |
603 | wrqu.data.length = req_ie_len; | |
3409ff77 | 604 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 605 | &wrqu, req_ie); |
b23aa676 SO |
606 | } |
607 | ||
608 | if (resp_ie) { | |
609 | memset(&wrqu, 0, sizeof(wrqu)); | |
610 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
611 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
612 | &wrqu, resp_ie); | |
b23aa676 SO |
613 | } |
614 | ||
615 | memset(&wrqu, 0, sizeof(wrqu)); | |
616 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
617 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
618 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 619 | wdev->wext.prev_bssid_valid = true; |
667503dd | 620 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 621 | #endif |
adbde344 VT |
622 | |
623 | return; | |
624 | out: | |
5b112d3d | 625 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 626 | } |
667503dd | 627 | |
ed9d0102 JM |
628 | void cfg80211_roamed(struct net_device *dev, |
629 | struct ieee80211_channel *channel, | |
630 | const u8 *bssid, | |
667503dd JB |
631 | const u8 *req_ie, size_t req_ie_len, |
632 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
633 | { |
634 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
635 | struct cfg80211_bss *bss; | |
636 | ||
637 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); | |
638 | ||
639 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, | |
640 | wdev->ssid_len, WLAN_CAPABILITY_ESS, | |
641 | WLAN_CAPABILITY_ESS); | |
642 | if (WARN_ON(!bss)) | |
643 | return; | |
644 | ||
645 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
646 | resp_ie_len, gfp); | |
647 | } | |
648 | EXPORT_SYMBOL(cfg80211_roamed); | |
649 | ||
650 | void cfg80211_roamed_bss(struct net_device *dev, | |
651 | struct cfg80211_bss *bss, const u8 *req_ie, | |
652 | size_t req_ie_len, const u8 *resp_ie, | |
653 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
654 | { |
655 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
656 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
657 | struct cfg80211_event *ev; | |
658 | unsigned long flags; | |
659 | ||
f7969969 JB |
660 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
661 | ||
adbde344 VT |
662 | if (WARN_ON(!bss)) |
663 | return; | |
664 | ||
667503dd | 665 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 666 | if (!ev) { |
5b112d3d | 667 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 668 | return; |
adbde344 | 669 | } |
667503dd JB |
670 | |
671 | ev->type = EVENT_ROAMED; | |
667503dd JB |
672 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
673 | ev->rm.req_ie_len = req_ie_len; | |
674 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
675 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
676 | ev->rm.resp_ie_len = resp_ie_len; | |
677 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 678 | ev->rm.bss = bss; |
667503dd JB |
679 | |
680 | spin_lock_irqsave(&wdev->event_lock, flags); | |
681 | list_add_tail(&ev->list, &wdev->event_list); | |
682 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 683 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 684 | } |
adbde344 | 685 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 686 | |
667503dd | 687 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 688 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
689 | { |
690 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
691 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
692 | int i; | |
3d23e349 | 693 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
694 | union iwreq_data wrqu; |
695 | #endif | |
696 | ||
667503dd JB |
697 | ASSERT_WDEV_LOCK(wdev); |
698 | ||
074ac8df JB |
699 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
700 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
701 | return; |
702 | ||
f7969969 | 703 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
704 | return; |
705 | ||
706 | if (wdev->current_bss) { | |
707 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 708 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
709 | } |
710 | ||
711 | wdev->current_bss = NULL; | |
712 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 713 | wdev->ssid_len = 0; |
b23aa676 | 714 | |
6829c878 JB |
715 | if (wdev->conn) { |
716 | kfree(wdev->conn->ie); | |
717 | wdev->conn->ie = NULL; | |
19957bb3 JB |
718 | kfree(wdev->conn); |
719 | wdev->conn = NULL; | |
6829c878 JB |
720 | } |
721 | ||
fffd0934 JB |
722 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
723 | ||
724 | /* | |
725 | * Delete all the keys ... pairwise keys can't really | |
726 | * exist any more anyway, but default keys might. | |
727 | */ | |
728 | if (rdev->ops->del_key) | |
729 | for (i = 0; i < 6; i++) | |
e35e4d28 | 730 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 731 | |
3d23e349 | 732 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
733 | memset(&wrqu, 0, sizeof(wrqu)); |
734 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
735 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 736 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 737 | #endif |
09d989d1 LR |
738 | |
739 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
740 | } |
741 | ||
742 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
743 | u8 *ie, size_t ie_len, gfp_t gfp) | |
744 | { | |
667503dd JB |
745 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
746 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
747 | struct cfg80211_event *ev; | |
748 | unsigned long flags; | |
749 | ||
f7969969 JB |
750 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
751 | ||
667503dd JB |
752 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
753 | if (!ev) | |
754 | return; | |
755 | ||
756 | ev->type = EVENT_DISCONNECTED; | |
757 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
758 | ev->dc.ie_len = ie_len; | |
759 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
760 | ev->dc.reason = reason; | |
761 | ||
762 | spin_lock_irqsave(&wdev->event_lock, flags); | |
763 | list_add_tail(&ev->list, &wdev->event_list); | |
764 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 765 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
766 | } |
767 | EXPORT_SYMBOL(cfg80211_disconnected); | |
768 | ||
667503dd JB |
769 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
770 | struct net_device *dev, | |
fffd0934 | 771 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
772 | struct cfg80211_cached_keys *connkeys, |
773 | const u8 *prev_bssid) | |
b23aa676 | 774 | { |
b23aa676 | 775 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 776 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
777 | int err; |
778 | ||
779 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
780 | |
781 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
782 | return -EALREADY; | |
783 | ||
fffd0934 JB |
784 | if (WARN_ON(wdev->connect_keys)) { |
785 | kfree(wdev->connect_keys); | |
786 | wdev->connect_keys = NULL; | |
787 | } | |
788 | ||
7e7c8926 BG |
789 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
790 | rdev->wiphy.ht_capa_mod_mask); | |
791 | ||
fffd0934 JB |
792 | if (connkeys && connkeys->def >= 0) { |
793 | int idx; | |
bcba8eae | 794 | u32 cipher; |
fffd0934 JB |
795 | |
796 | idx = connkeys->def; | |
bcba8eae | 797 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 798 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
799 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
800 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
801 | connect->key_idx = idx; |
802 | connect->key = connkeys->params[idx].key; | |
803 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
804 | |
805 | /* | |
806 | * If ciphers are not set (e.g. when going through | |
807 | * iwconfig), we have to set them appropriately here. | |
808 | */ | |
809 | if (connect->crypto.cipher_group == 0) | |
810 | connect->crypto.cipher_group = cipher; | |
811 | ||
812 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
813 | connect->crypto.n_ciphers_pairwise = 1; | |
814 | connect->crypto.ciphers_pairwise[0] = cipher; | |
815 | } | |
fffd0934 JB |
816 | } |
817 | } | |
818 | ||
b23aa676 | 819 | if (!rdev->ops->connect) { |
6829c878 JB |
820 | if (!rdev->ops->auth || !rdev->ops->assoc) |
821 | return -EOPNOTSUPP; | |
822 | ||
19957bb3 JB |
823 | if (WARN_ON(wdev->conn)) |
824 | return -EINPROGRESS; | |
825 | ||
826 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
827 | if (!wdev->conn) | |
828 | return -ENOMEM; | |
6829c878 JB |
829 | |
830 | /* | |
831 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
832 | */ | |
833 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
834 | if (connect->bssid) { | |
835 | wdev->conn->params.bssid = wdev->conn->bssid; | |
836 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
837 | } | |
838 | ||
839 | if (connect->ie) { | |
840 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
841 | GFP_KERNEL); | |
842 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
843 | if (!wdev->conn->ie) { |
844 | kfree(wdev->conn); | |
845 | wdev->conn = NULL; | |
6829c878 | 846 | return -ENOMEM; |
19957bb3 | 847 | } |
6829c878 JB |
848 | } |
849 | ||
850 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
851 | wdev->conn->auto_auth = true; | |
852 | /* start with open system ... should mostly work */ | |
853 | wdev->conn->params.auth_type = | |
854 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
855 | } else { | |
856 | wdev->conn->auto_auth = false; | |
857 | } | |
858 | ||
859 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
860 | wdev->ssid_len = connect->ssid_len; | |
861 | wdev->conn->params.ssid = wdev->ssid; | |
862 | wdev->conn->params.ssid_len = connect->ssid_len; | |
863 | ||
8bb89485 JB |
864 | /* see if we have the bss already */ |
865 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
866 | |
867 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 868 | wdev->connect_keys = connkeys; |
6829c878 | 869 | |
f401a6f7 JB |
870 | if (prev_bssid) { |
871 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
872 | wdev->conn->prev_bssid_valid = true; | |
873 | } | |
874 | ||
bbac31f4 JB |
875 | /* we're good if we have a matching bss struct */ |
876 | if (bss) { | |
6829c878 JB |
877 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
878 | err = cfg80211_conn_do_work(wdev); | |
5b112d3d | 879 | cfg80211_put_bss(wdev->wiphy, bss); |
6829c878 JB |
880 | } else { |
881 | /* otherwise we'll need to scan for the AP first */ | |
882 | err = cfg80211_conn_scan(wdev); | |
883 | /* | |
884 | * If we can't scan right now, then we need to scan again | |
885 | * after the current scan finished, since the parameters | |
886 | * changed (unless we find a good AP anyway). | |
887 | */ | |
888 | if (err == -EBUSY) { | |
889 | err = 0; | |
890 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
891 | } | |
892 | } | |
19957bb3 | 893 | if (err) { |
415ad1ef | 894 | kfree(wdev->conn->ie); |
19957bb3 JB |
895 | kfree(wdev->conn); |
896 | wdev->conn = NULL; | |
6829c878 | 897 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 898 | wdev->connect_keys = NULL; |
8dadadb7 | 899 | wdev->ssid_len = 0; |
19957bb3 | 900 | } |
6829c878 JB |
901 | |
902 | return err; | |
b23aa676 SO |
903 | } else { |
904 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 905 | wdev->connect_keys = connkeys; |
e35e4d28 | 906 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 907 | if (err) { |
fffd0934 | 908 | wdev->connect_keys = NULL; |
b23aa676 SO |
909 | wdev->sme_state = CFG80211_SME_IDLE; |
910 | return err; | |
911 | } | |
b23aa676 | 912 | |
6829c878 JB |
913 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
914 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 915 | |
6829c878 JB |
916 | return 0; |
917 | } | |
b23aa676 SO |
918 | } |
919 | ||
667503dd JB |
920 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
921 | struct net_device *dev, | |
fffd0934 JB |
922 | struct cfg80211_connect_params *connect, |
923 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
924 | { |
925 | int err; | |
926 | ||
59bbb6f7 | 927 | mutex_lock(&rdev->devlist_mtx); |
f9f47529 JB |
928 | /* might request scan - scan_mtx -> wdev_mtx dependency */ |
929 | mutex_lock(&rdev->sched_scan_mtx); | |
667503dd | 930 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 931 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 932 | wdev_unlock(dev->ieee80211_ptr); |
f9f47529 | 933 | mutex_unlock(&rdev->sched_scan_mtx); |
59bbb6f7 | 934 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
935 | |
936 | return err; | |
937 | } | |
938 | ||
939 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
940 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 941 | { |
6829c878 | 942 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
943 | int err; |
944 | ||
667503dd JB |
945 | ASSERT_WDEV_LOCK(wdev); |
946 | ||
6829c878 JB |
947 | if (wdev->sme_state == CFG80211_SME_IDLE) |
948 | return -EINVAL; | |
949 | ||
fffd0934 JB |
950 | kfree(wdev->connect_keys); |
951 | wdev->connect_keys = NULL; | |
952 | ||
b23aa676 | 953 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
954 | if (!rdev->ops->deauth) |
955 | return -EOPNOTSUPP; | |
6829c878 | 956 | |
19957bb3 JB |
957 | /* was it connected by userspace SME? */ |
958 | if (!wdev->conn) { | |
959 | cfg80211_mlme_down(rdev, dev); | |
960 | return 0; | |
961 | } | |
6829c878 JB |
962 | |
963 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
964 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
965 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
966 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 967 | kfree(wdev->conn->ie); |
19957bb3 JB |
968 | kfree(wdev->conn); |
969 | wdev->conn = NULL; | |
8dadadb7 | 970 | wdev->ssid_len = 0; |
6829c878 JB |
971 | return 0; |
972 | } | |
973 | ||
6829c878 | 974 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
975 | err = __cfg80211_mlme_deauth(rdev, dev, |
976 | wdev->conn->params.bssid, | |
d5cdfacb | 977 | NULL, 0, reason, false); |
6829c878 JB |
978 | if (err) |
979 | return err; | |
b23aa676 | 980 | } else { |
e35e4d28 | 981 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 SO |
982 | if (err) |
983 | return err; | |
984 | } | |
985 | ||
6829c878 | 986 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 987 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 988 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
989 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
990 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 991 | wextev, NULL); |
b23aa676 SO |
992 | |
993 | return 0; | |
994 | } | |
19957bb3 | 995 | |
667503dd JB |
996 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
997 | struct net_device *dev, | |
998 | u16 reason, bool wextev) | |
999 | { | |
1000 | int err; | |
1001 | ||
1002 | wdev_lock(dev->ieee80211_ptr); | |
1003 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
1004 | wdev_unlock(dev->ieee80211_ptr); | |
1005 | ||
1006 | return err; | |
1007 | } | |
1008 | ||
95de817b JB |
1009 | void cfg80211_sme_disassoc(struct net_device *dev, |
1010 | struct cfg80211_internal_bss *bss) | |
19957bb3 JB |
1011 | { |
1012 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1013 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
1014 | u8 bssid[ETH_ALEN]; | |
1015 | ||
667503dd JB |
1016 | ASSERT_WDEV_LOCK(wdev); |
1017 | ||
19957bb3 JB |
1018 | if (!wdev->conn) |
1019 | return; | |
1020 | ||
1021 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
1022 | return; | |
1023 | ||
1024 | /* | |
1025 | * Ok, so the association was made by this SME -- we don't | |
1026 | * want it any more so deauthenticate too. | |
1027 | */ | |
1028 | ||
95de817b | 1029 | memcpy(bssid, bss->pub.bssid, ETH_ALEN); |
19957bb3 | 1030 | |
95de817b JB |
1031 | __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, |
1032 | WLAN_REASON_DEAUTH_LEAVING, false); | |
19957bb3 | 1033 | } |