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Merge remote-tracking branches 'spi/fix/armada', 'spi/fix/idr', 'spi/fix/qspi', ...
[GitHub/MotorolaMobilityLLC/kernel-slsi.git] / net / wireless / sme.c
CommitLineData
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.
29ce6ecb 8 * Copyright 2017 Intel Deutschland GmbH
b23aa676
SO		 9 */
10
11#include <linux/etherdevice.h>
12#include <linux/if_arp.h>
5a0e3ad6 13#include <linux/slab.h>
b23aa676 14#include <linux/workqueue.h>
a9a11622 15#include <linux/wireless.h>
bc3b2d7f 16#include <linux/export.h>
a9a11622 17#include <net/iw_handler.h>
b23aa676
SO		 18#include <net/cfg80211.h>
19#include <net/rtnetlink.h>
20#include "nl80211.h"
8b19e6ca 21#include "reg.h"
e35e4d28 22#include "rdev-ops.h"
b23aa676 23
ceca7b71
JB		 24/*
25 * Software SME in cfg80211, using auth/assoc/deauth calls to the
26 * driver. This is is for implementing nl80211's connect/disconnect
27 * and wireless extensions (if configured.)
28 */
29
6829c878
JB		 30struct cfg80211_conn {
31 struct cfg80211_connect_params params;
32 /* these are sub-states of the _CONNECTING sme_state */
33 enum {
6829c878
JB		 34 CFG80211_CONN_SCANNING,
35 CFG80211_CONN_SCAN_AGAIN,
36 CFG80211_CONN_AUTHENTICATE_NEXT,
37 CFG80211_CONN_AUTHENTICATING,
3093ebbe 38 CFG80211_CONN_AUTH_FAILED_TIMEOUT,
6829c878
JB		 39 CFG80211_CONN_ASSOCIATE_NEXT,
40 CFG80211_CONN_ASSOCIATING,
923a0e7d 41 CFG80211_CONN_ASSOC_FAILED,
3093ebbe 42 CFG80211_CONN_ASSOC_FAILED_TIMEOUT,
ceca7b71 43 CFG80211_CONN_DEAUTH,
e6f462df 44 CFG80211_CONN_ABANDON,
ceca7b71 45 CFG80211_CONN_CONNECTED,
6829c878 46 } state;
f401a6f7 47 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
46b9d180 48 const u8 *ie;
6829c878 49 size_t ie_len;
f401a6f7 50 bool auto_auth, prev_bssid_valid;
6829c878
JB		 51};
52
ceca7b71 53static void cfg80211_sme_free(struct wireless_dev *wdev)
09d989d1 54{
ceca7b71
JB		 55 if (!wdev->conn)
56 return;
09d989d1 57
ceca7b71
JB		 58 kfree(wdev->conn->ie);
59 kfree(wdev->conn);
60 wdev->conn = NULL;
09d989d1
LR		 61}
62
6829c878
JB		 63static int cfg80211_conn_scan(struct wireless_dev *wdev)
64{
f26cbf40 65 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
6829c878
JB		 66 struct cfg80211_scan_request *request;
67 int n_channels, err;
68
69 ASSERT_RTNL();
667503dd 70 ASSERT_WDEV_LOCK(wdev);
6829c878 71
f9d15d16 72 if (rdev->scan_req || rdev->scan_msg)
6829c878
JB		 73 return -EBUSY;
74
bdfbec2d 75 if (wdev->conn->params.channel)
6829c878 76 n_channels = 1;
bdfbec2d
IP		 77 else
78 n_channels = ieee80211_get_num_supported_channels(wdev->wiphy);
6829c878 79
6829c878
JB		 80 request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
81 sizeof(request->channels[0]) * n_channels,
82 GFP_KERNEL);
83 if (!request)
84 return -ENOMEM;
85
2a84ee86 86 if (wdev->conn->params.channel) {
57fbcce3 87 enum nl80211_band band = wdev->conn->params.channel->band;
2a84ee86
KB		 88 struct ieee80211_supported_band *sband =
89 wdev->wiphy->bands[band];
90
91 if (!sband) {
92 kfree(request);
93 return -EINVAL;
94 }
6829c878 95 request->channels[0] = wdev->conn->params.channel;
2a84ee86
KB		 96 request->rates[band] = (1 << sband->n_bitrates) - 1;
97 } else {
6829c878 98 int i = 0, j;
57fbcce3 99 enum nl80211_band band;
e3081501
RM		 100 struct ieee80211_supported_band *bands;
101 struct ieee80211_channel *channel;
6829c878 102
57fbcce3 103 for (band = 0; band < NUM_NL80211_BANDS; band++) {
e3081501
RM		 104 bands = wdev->wiphy->bands[band];
105 if (!bands)
6829c878 106 continue;
e3081501
RM		 107 for (j = 0; j < bands->n_channels; j++) {
108 channel = &bands->channels[j];
109 if (channel->flags & IEEE80211_CHAN_DISABLED)
110 continue;
111 request->channels[i++] = channel;
112 }
113 request->rates[band] = (1 << bands->n_bitrates) - 1;
6829c878 114 }
e3081501 115 n_channels = i;
6829c878
JB		 116 }
117 request->n_channels = n_channels;
5ba63533 118 request->ssids = (void *)&request->channels[n_channels];
6829c878
JB		 119 request->n_ssids = 1;
120
121 memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
122 wdev->conn->params.ssid_len);
123 request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
124
818965d3
JM		 125 eth_broadcast_addr(request->bssid);
126
fd014284 127 request->wdev = wdev;
79c97e97 128 request->wiphy = &rdev->wiphy;
15d6030b 129 request->scan_start = jiffies;
6829c878 130
79c97e97 131 rdev->scan_req = request;
6829c878 132
e35e4d28 133 err = rdev_scan(rdev, request);
6829c878
JB		 134 if (!err) {
135 wdev->conn->state = CFG80211_CONN_SCANNING;
fd014284 136 nl80211_send_scan_start(rdev, wdev);
463d0183 137 dev_hold(wdev->netdev);
6829c878 138 } else {
79c97e97 139 rdev->scan_req = NULL;
6829c878
JB		 140 kfree(request);
141 }
142 return err;
143}
144
3093ebbe
PK		 145static int cfg80211_conn_do_work(struct wireless_dev *wdev,
146 enum nl80211_timeout_reason *treason)
6829c878 147{
f26cbf40 148 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
19957bb3 149 struct cfg80211_connect_params *params;
f62fab73 150 struct cfg80211_assoc_request req = {};
19957bb3 151 int err;
6829c878 152
667503dd
JB		 153 ASSERT_WDEV_LOCK(wdev);
154
6829c878
JB		 155 if (!wdev->conn)
156 return 0;
157
19957bb3
JB		 158 params = &wdev->conn->params;
159
6829c878 160 switch (wdev->conn->state) {
ceca7b71
JB		 161 case CFG80211_CONN_SCANNING:
162 /* didn't find it during scan ... */
163 return -ENOENT;
6829c878
JB		 164 case CFG80211_CONN_SCAN_AGAIN:
165 return cfg80211_conn_scan(wdev);
166 case CFG80211_CONN_AUTHENTICATE_NEXT:
2fd05115
JB		 167 if (WARN_ON(!rdev->ops->auth))
168 return -EOPNOTSUPP;
19957bb3 169 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
91bf9b26
JB		 170 return cfg80211_mlme_auth(rdev, wdev->netdev,
171 params->channel, params->auth_type,
172 params->bssid,
173 params->ssid, params->ssid_len,
174 NULL, 0,
175 params->key, params->key_len,
176 params->key_idx, NULL, 0);
3093ebbe
PK		 177 case CFG80211_CONN_AUTH_FAILED_TIMEOUT:
178 *treason = NL80211_TIMEOUT_AUTH;
923a0e7d 179 return -ENOTCONN;
6829c878 180 case CFG80211_CONN_ASSOCIATE_NEXT:
2fd05115
JB		 181 if (WARN_ON(!rdev->ops->assoc))
182 return -EOPNOTSUPP;
19957bb3 183 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
f401a6f7 184 if (wdev->conn->prev_bssid_valid)
f62fab73
JB		 185 req.prev_bssid = wdev->conn->prev_bssid;
186 req.ie = params->ie;
187 req.ie_len = params->ie_len;
188 req.use_mfp = params->mfp != NL80211_MFP_NO;
189 req.crypto = params->crypto;
190 req.flags = params->flags;
191 req.ht_capa = params->ht_capa;
192 req.ht_capa_mask = params->ht_capa_mask;
193 req.vht_capa = params->vht_capa;
194 req.vht_capa_mask = params->vht_capa_mask;
195
91bf9b26
JB		 196 err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
197 params->bssid, params->ssid,
198 params->ssid_len, &req);
19957bb3 199 if (err)
91bf9b26
JB		 200 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
201 NULL, 0,
202 WLAN_REASON_DEAUTH_LEAVING,
203 false);
19957bb3 204 return err;
3093ebbe
PK		 205 case CFG80211_CONN_ASSOC_FAILED_TIMEOUT:
206 *treason = NL80211_TIMEOUT_ASSOC;
207 /* fall through */
923a0e7d
JB		 208 case CFG80211_CONN_ASSOC_FAILED:
209 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
210 NULL, 0,
211 WLAN_REASON_DEAUTH_LEAVING, false);
212 return -ENOTCONN;
ceca7b71 213 case CFG80211_CONN_DEAUTH:
91bf9b26
JB		 214 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
215 NULL, 0,
216 WLAN_REASON_DEAUTH_LEAVING, false);
e6f462df
JB		 217 /* fall through */
218 case CFG80211_CONN_ABANDON:
923a0e7d
JB		 219 /* free directly, disconnected event already sent */
220 cfg80211_sme_free(wdev);
ceca7b71 221 return 0;
6829c878
JB		 222 default:
223 return 0;
224 }
225}
226
227void cfg80211_conn_work(struct work_struct *work)
228{
79c97e97 229 struct cfg80211_registered_device *rdev =
6829c878
JB		 230 container_of(work, struct cfg80211_registered_device, conn_work);
231 struct wireless_dev *wdev;
7400f42e 232 u8 bssid_buf[ETH_ALEN], *bssid = NULL;
3093ebbe 233 enum nl80211_timeout_reason treason;
6829c878
JB		 234
235 rtnl_lock();
6829c878 236
53873f13 237 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
c8157976
JB		 238 if (!wdev->netdev)
239 continue;
240
667503dd
JB		 241 wdev_lock(wdev);
242 if (!netif_running(wdev->netdev)) {
243 wdev_unlock(wdev);
6829c878 244 continue;
667503dd 245 }
ceca7b71
JB		 246 if (!wdev->conn ||
247 wdev->conn->state == CFG80211_CONN_CONNECTED) {
667503dd 248 wdev_unlock(wdev);
6829c878 249 continue;
667503dd 250 }
7400f42e
JB		 251 if (wdev->conn->params.bssid) {
252 memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
253 bssid = bssid_buf;
254 }
3093ebbe
PK		 255 treason = NL80211_TIMEOUT_UNSPECIFIED;
256 if (cfg80211_conn_do_work(wdev, &treason)) {
5349a0f7
VK		 257 struct cfg80211_connect_resp_params cr;
258
259 memset(&cr, 0, sizeof(cr));
260 cr.status = -1;
261 cr.bssid = bssid;
262 cr.timeout_reason = treason;
263 __cfg80211_connect_result(wdev->netdev, &cr, false);
ceca7b71 264 }
667503dd 265 wdev_unlock(wdev);
6829c878
JB		 266 }
267
6829c878
JB		 268 rtnl_unlock();
269}
270
0e3a39b5 271/* Returned bss is reference counted and must be cleaned up appropriately. */
bbac31f4 272static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
6829c878 273{
f26cbf40 274 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
6829c878 275 struct cfg80211_bss *bss;
6829c878 276
667503dd
JB		 277 ASSERT_WDEV_LOCK(wdev);
278
ed9d0102
JM		 279 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
280 wdev->conn->params.bssid,
6829c878
JB		 281 wdev->conn->params.ssid,
282 wdev->conn->params.ssid_len,
34d50519 283 wdev->conn_bss_type,
6eb18137 284 IEEE80211_PRIVACY(wdev->conn->params.privacy));
6829c878 285 if (!bss)
bbac31f4 286 return NULL;
6829c878
JB		 287
288 memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
289 wdev->conn->params.bssid = wdev->conn->bssid;
290 wdev->conn->params.channel = bss->channel;
291 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
79c97e97 292 schedule_work(&rdev->conn_work);
6829c878 293
bbac31f4 294 return bss;
6829c878
JB		 295}
296
667503dd 297static void __cfg80211_sme_scan_done(struct net_device *dev)
6829c878
JB		 298{
299 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 300 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
bbac31f4 301 struct cfg80211_bss *bss;
6829c878 302
667503dd
JB		 303 ASSERT_WDEV_LOCK(wdev);
304
d4b1a687 305 if (!wdev->conn)
6829c878
JB		 306 return;
307
308 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
309 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
310 return;
311
bbac31f4 312 bss = cfg80211_get_conn_bss(wdev);
ceca7b71 313 if (bss)
5b112d3d 314 cfg80211_put_bss(&rdev->wiphy, bss);
ceca7b71
JB		 315 else
316 schedule_work(&rdev->conn_work);
6829c878
JB		 317}
318
667503dd
JB		 319void cfg80211_sme_scan_done(struct net_device *dev)
320{
321 struct wireless_dev *wdev = dev->ieee80211_ptr;
322
323 wdev_lock(wdev);
324 __cfg80211_sme_scan_done(dev);
325 wdev_unlock(wdev);
326}
327
ceca7b71 328void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
6829c878 329{
6829c878 330 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 331 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6829c878
JB		 332 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
333 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
334
667503dd
JB		 335 ASSERT_WDEV_LOCK(wdev);
336
ceca7b71 337 if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
6829c878
JB		 338 return;
339
340 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
341 wdev->conn->auto_auth &&
342 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
343 /* select automatically between only open, shared, leap */
344 switch (wdev->conn->params.auth_type) {
345 case NL80211_AUTHTYPE_OPEN_SYSTEM:
fffd0934
JB		 346 if (wdev->connect_keys)
347 wdev->conn->params.auth_type =
348 NL80211_AUTHTYPE_SHARED_KEY;
349 else
350 wdev->conn->params.auth_type =
351 NL80211_AUTHTYPE_NETWORK_EAP;
6829c878
JB		 352 break;
353 case NL80211_AUTHTYPE_SHARED_KEY:
354 wdev->conn->params.auth_type =
355 NL80211_AUTHTYPE_NETWORK_EAP;
356 break;
357 default:
358 /* huh? */
359 wdev->conn->params.auth_type =
360 NL80211_AUTHTYPE_OPEN_SYSTEM;
361 break;
362 }
363 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
364 schedule_work(&rdev->conn_work);
19957bb3 365 } else if (status_code != WLAN_STATUS_SUCCESS) {
5349a0f7
VK		 366 struct cfg80211_connect_resp_params cr;
367
368 memset(&cr, 0, sizeof(cr));
369 cr.status = status_code;
370 cr.bssid = mgmt->bssid;
371 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
372 __cfg80211_connect_result(wdev->netdev, &cr, false);
ceca7b71 373 } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
6829c878
JB		 374 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
375 schedule_work(&rdev->conn_work);
376 }
377}
b23aa676 378
ceca7b71 379bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
f401a6f7 380{
f26cbf40 381 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f401a6f7 382
ceca7b71 383 if (!wdev->conn)
f401a6f7
JB		 384 return false;
385
ceca7b71
JB		 386 if (status == WLAN_STATUS_SUCCESS) {
387 wdev->conn->state = CFG80211_CONN_CONNECTED;
f401a6f7 388 return false;
ceca7b71 389 }
f401a6f7 390
ceca7b71
JB		 391 if (wdev->conn->prev_bssid_valid) {
392 /*
393 * Some stupid APs don't accept reassoc, so we
394 * need to fall back to trying regular assoc;
395 * return true so no event is sent to userspace.
396 */
397 wdev->conn->prev_bssid_valid = false;
398 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
399 schedule_work(&rdev->conn_work);
400 return true;
401 }
402
923a0e7d 403 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
f401a6f7 404 schedule_work(&rdev->conn_work);
ceca7b71
JB		 405 return false;
406}
f401a6f7 407
ceca7b71
JB		 408void cfg80211_sme_deauth(struct wireless_dev *wdev)
409{
410 cfg80211_sme_free(wdev);
f401a6f7
JB		 411}
412
ceca7b71 413void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
7d930bc3 414{
f26cbf40 415 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
923a0e7d
JB		 416
417 if (!wdev->conn)
418 return;
419
3093ebbe 420 wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
923a0e7d 421 schedule_work(&rdev->conn_work);
ceca7b71 422}
7d930bc3 423
ceca7b71
JB		 424void cfg80211_sme_disassoc(struct wireless_dev *wdev)
425{
f26cbf40 426 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ceca7b71
JB		 427
428 if (!wdev->conn)
429 return;
430
431 wdev->conn->state = CFG80211_CONN_DEAUTH;
7d930bc3
JB		 432 schedule_work(&rdev->conn_work);
433}
434
ceca7b71
JB		 435void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
436{
f26cbf40 437 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
923a0e7d
JB		 438
439 if (!wdev->conn)
440 return;
441
3093ebbe 442 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
923a0e7d 443 schedule_work(&rdev->conn_work);
ceca7b71
JB		 444}
445
e6f462df
JB		 446void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
447{
448 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
449
450 if (!wdev->conn)
451 return;
452
453 wdev->conn->state = CFG80211_CONN_ABANDON;
454 schedule_work(&rdev->conn_work);
455}
456
46b9d180
JB		 457static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
458 const u8 *ies, size_t ies_len,
459 const u8 **out_ies, size_t *out_ies_len)
460{
461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
462 u8 *buf;
463 size_t offs;
464
465 if (!rdev->wiphy.extended_capabilities_len ||
466 (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
467 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
468 if (!*out_ies)
469 return -ENOMEM;
470 *out_ies_len = ies_len;
471 return 0;
472 }
473
474 buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
475 GFP_KERNEL);
476 if (!buf)
477 return -ENOMEM;
478
479 if (ies_len) {
480 static const u8 before_extcapa[] = {
481 /* not listing IEs expected to be created by driver */
482 WLAN_EID_RSN,
483 WLAN_EID_QOS_CAPA,
484 WLAN_EID_RRM_ENABLED_CAPABILITIES,
485 WLAN_EID_MOBILITY_DOMAIN,
486 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
487 WLAN_EID_BSS_COEX_2040,
488 };
489
490 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
491 ARRAY_SIZE(before_extcapa), 0);
492 memcpy(buf, ies, offs);
493 /* leave a whole for extended capabilities IE */
494 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
495 ies + offs, ies_len - offs);
496 } else {
497 offs = 0;
498 }
499
500 /* place extended capabilities IE (with only driver capabilities) */
501 buf[offs] = WLAN_EID_EXT_CAPABILITY;
502 buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
503 memcpy(buf + offs + 2,
504 rdev->wiphy.extended_capabilities,
505 rdev->wiphy.extended_capabilities_len);
506
507 *out_ies = buf;
508 *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
509
510 return 0;
511}
512
ceca7b71
JB		 513static int cfg80211_sme_connect(struct wireless_dev *wdev,
514 struct cfg80211_connect_params *connect,
515 const u8 *prev_bssid)
516{
f26cbf40 517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ceca7b71
JB		 518 struct cfg80211_bss *bss;
519 int err;
520
521 if (!rdev->ops->auth || !rdev->ops->assoc)
522 return -EOPNOTSUPP;
523
4ce2bd9c
JM		 524 if (wdev->current_bss) {
525 if (!prev_bssid)
526 return -EALREADY;
527 if (prev_bssid &&
528 !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid))
529 return -ENOTCONN;
530 cfg80211_unhold_bss(wdev->current_bss);
531 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
532 wdev->current_bss = NULL;
533
534 cfg80211_sme_free(wdev);
535 }
ceca7b71
JB		 536
537 if (WARN_ON(wdev->conn))
538 return -EINPROGRESS;
539
540 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
541 if (!wdev->conn)
542 return -ENOMEM;
543
544 /*
545 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
546 */
547 memcpy(&wdev->conn->params, connect, sizeof(*connect));
548 if (connect->bssid) {
549 wdev->conn->params.bssid = wdev->conn->bssid;
550 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
551 }
552
46b9d180
JB		 553 if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
554 &wdev->conn->ie,
555 &wdev->conn->params.ie_len)) {
556 kfree(wdev->conn);
557 wdev->conn = NULL;
558 return -ENOMEM;
ceca7b71 559 }
46b9d180 560 wdev->conn->params.ie = wdev->conn->ie;
ceca7b71
JB		 561
562 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
563 wdev->conn->auto_auth = true;
564 /* start with open system ... should mostly work */
565 wdev->conn->params.auth_type =
566 NL80211_AUTHTYPE_OPEN_SYSTEM;
567 } else {
568 wdev->conn->auto_auth = false;
569 }
570
571 wdev->conn->params.ssid = wdev->ssid;
babd3a27 572 wdev->conn->params.ssid_len = wdev->ssid_len;
ceca7b71
JB		 573
574 /* see if we have the bss already */
575 bss = cfg80211_get_conn_bss(wdev);
576
577 if (prev_bssid) {
578 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
579 wdev->conn->prev_bssid_valid = true;
580 }
581
582 /* we're good if we have a matching bss struct */
583 if (bss) {
3093ebbe
PK		 584 enum nl80211_timeout_reason treason;
585
586 err = cfg80211_conn_do_work(wdev, &treason);
ceca7b71
JB		 587 cfg80211_put_bss(wdev->wiphy, bss);
588 } else {
589 /* otherwise we'll need to scan for the AP first */
590 err = cfg80211_conn_scan(wdev);
591
592 /*
593 * If we can't scan right now, then we need to scan again
594 * after the current scan finished, since the parameters
595 * changed (unless we find a good AP anyway).
596 */
597 if (err == -EBUSY) {
598 err = 0;
599 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
600 }
601 }
602
603 if (err)
604 cfg80211_sme_free(wdev);
605
606 return err;
607}
608
609static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
610{
f26cbf40 611 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ceca7b71
JB		 612 int err;
613
614 if (!wdev->conn)
615 return 0;
616
617 if (!rdev->ops->deauth)
618 return -EOPNOTSUPP;
619
620 if (wdev->conn->state == CFG80211_CONN_SCANNING ||
621 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
622 err = 0;
623 goto out;
624 }
625
626 /* wdev->conn->params.bssid must be set if > SCANNING */
627 err = cfg80211_mlme_deauth(rdev, wdev->netdev,
628 wdev->conn->params.bssid,
629 NULL, 0, reason, false);
630 out:
631 cfg80211_sme_free(wdev);
632 return err;
633}
634
635/*
636 * code shared for in-device and software SME
637 */
638
639static bool cfg80211_is_all_idle(void)
640{
641 struct cfg80211_registered_device *rdev;
642 struct wireless_dev *wdev;
643 bool is_all_idle = true;
644
645 /*
646 * All devices must be idle as otherwise if you are actively
647 * scanning some new beacon hints could be learned and would
648 * count as new regulatory hints.
649 */
650 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
53873f13 651 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
ceca7b71
JB		 652 wdev_lock(wdev);
653 if (wdev->conn || wdev->current_bss)
654 is_all_idle = false;
655 wdev_unlock(wdev);
656 }
657 }
658
659 return is_all_idle;
660}
661
662static void disconnect_work(struct work_struct *work)
663{
664 rtnl_lock();
665 if (cfg80211_is_all_idle())
666 regulatory_hint_disconnect();
667 rtnl_unlock();
668}
669
670static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
671
672
673/*
674 * API calls for drivers implementing connect/disconnect and
675 * SME event handling
676 */
677
6f390908 678/* This method must consume bss one way or another */
5349a0f7
VK		 679void __cfg80211_connect_result(struct net_device *dev,
680 struct cfg80211_connect_resp_params *cr,
681 bool wextev)
b23aa676
SO		 682{
683 struct wireless_dev *wdev = dev->ieee80211_ptr;
9caf0364 684 const u8 *country_ie;
3d23e349 685#ifdef CONFIG_CFG80211_WEXT
b23aa676
SO		 686 union iwreq_data wrqu;
687#endif
688
667503dd
JB		 689 ASSERT_WDEV_LOCK(wdev);
690
074ac8df 691 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
6f390908 692 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) {
5349a0f7 693 cfg80211_put_bss(wdev->wiphy, cr->bss);
b23aa676 694 return;
6f390908 695 }
b23aa676 696
5349a0f7
VK		 697 nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
698 GFP_KERNEL);
e45cd82a 699
3d23e349 700#ifdef CONFIG_CFG80211_WEXT
e45cd82a 701 if (wextev) {
5349a0f7 702 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
e45cd82a 703 memset(&wrqu, 0, sizeof(wrqu));
5349a0f7
VK		 704 wrqu.data.length = cr->req_ie_len;
705 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
706 cr->req_ie);
e45cd82a
JB		 707 }
708
5349a0f7 709 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
e45cd82a 710 memset(&wrqu, 0, sizeof(wrqu));
5349a0f7
VK		 711 wrqu.data.length = cr->resp_ie_len;
712 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
713 cr->resp_ie);
e45cd82a
JB		 714 }
715
716 memset(&wrqu, 0, sizeof(wrqu));
717 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
5349a0f7
VK		 718 if (cr->bssid && cr->status == WLAN_STATUS_SUCCESS) {
719 memcpy(wrqu.ap_addr.sa_data, cr->bssid, ETH_ALEN);
720 memcpy(wdev->wext.prev_bssid, cr->bssid, ETH_ALEN);
f401a6f7
JB		 721 wdev->wext.prev_bssid_valid = true;
722 }
e45cd82a
JB		 723 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
724 }
725#endif
726
5349a0f7 727 if (!cr->bss && (cr->status == WLAN_STATUS_SUCCESS)) {
f26cbf40 728 WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect);
5349a0f7
VK		 729 cr->bss = cfg80211_get_bss(wdev->wiphy, NULL, cr->bssid,
730 wdev->ssid, wdev->ssid_len,
731 wdev->conn_bss_type,
732 IEEE80211_PRIVACY_ANY);
733 if (cr->bss)
734 cfg80211_hold_bss(bss_from_pub(cr->bss));
4c4d684a
UR		 735 }
736
df7fc0f9
JB		 737 if (wdev->current_bss) {
738 cfg80211_unhold_bss(wdev->current_bss);
5b112d3d 739 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
df7fc0f9
JB		 740 wdev->current_bss = NULL;
741 }
742
5349a0f7 743 if (cr->status != WLAN_STATUS_SUCCESS) {
b47f610b 744 kzfree(wdev->connect_keys);
fffd0934 745 wdev->connect_keys = NULL;
8dadadb7 746 wdev->ssid_len = 0;
bd2522b1 747 wdev->conn_owner_nlportid = 0;
5349a0f7
VK		 748 if (cr->bss) {
749 cfg80211_unhold_bss(bss_from_pub(cr->bss));
750 cfg80211_put_bss(wdev->wiphy, cr->bss);
f1940c57 751 }
c1fbb258 752 cfg80211_sme_free(wdev);
fffd0934 753 return;
b23aa676 754 }
fffd0934 755
5349a0f7 756 if (WARN_ON(!cr->bss))
4c4d684a 757 return;
fffd0934 758
5349a0f7 759 wdev->current_bss = bss_from_pub(cr->bss);
fffd0934 760
b8676221
DS		 761 if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
762 cfg80211_upload_connect_keys(wdev);
8b19e6ca 763
9caf0364 764 rcu_read_lock();
5349a0f7 765 country_ie = ieee80211_bss_get_ie(cr->bss, WLAN_EID_COUNTRY);
9caf0364
JB		 766 if (!country_ie) {
767 rcu_read_unlock();
768 return;
769 }
770
771 country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC);
772 rcu_read_unlock();
8b19e6ca
LR		 773
774 if (!country_ie)
775 return;
776
777 /*
778 * ieee80211_bss_get_ie() ensures we can access:
779 * - country_ie + 2, the start of the country ie data, and
780 * - and country_ie[1] which is the IE length
781 */
5349a0f7 782 regulatory_hint_country_ie(wdev->wiphy, cr->bss->channel->band,
789fd033 783 country_ie + 2, country_ie[1]);
9caf0364 784 kfree(country_ie);
b23aa676 785}
f2129354 786
e7054989 787/* Consumes bss object one way or another */
5349a0f7
VK		 788void cfg80211_connect_done(struct net_device *dev,
789 struct cfg80211_connect_resp_params *params,
790 gfp_t gfp)
f2129354 791{
667503dd 792 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
667503dd
JB		 794 struct cfg80211_event *ev;
795 unsigned long flags;
5349a0f7 796 u8 *next;
667503dd 797
5349a0f7 798 if (params->bss) {
e7054989 799 /* Make sure the bss entry provided by the driver is valid. */
5349a0f7 800 struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss);
e7054989
KV		 801
802 if (WARN_ON(list_empty(&ibss->list))) {
5349a0f7 803 cfg80211_put_bss(wdev->wiphy, params->bss);
e7054989
KV		 804 return;
805 }
806 }
807
5349a0f7 808 ev = kzalloc(sizeof(*ev) + (params->bssid ? ETH_ALEN : 0) +
a3caf744
VK		 809 params->req_ie_len + params->resp_ie_len +
810 params->fils_kek_len + params->pmk_len +
811 (params->pmkid ? WLAN_PMKID_LEN : 0), gfp);
e7054989 812 if (!ev) {
5349a0f7 813 cfg80211_put_bss(wdev->wiphy, params->bss);
667503dd 814 return;
e7054989 815 }
667503dd
JB		 816
817 ev->type = EVENT_CONNECT_RESULT;
5349a0f7
VK		 818 next = ((u8 *)ev) + sizeof(*ev);
819 if (params->bssid) {
820 ev->cr.bssid = next;
821 memcpy((void *)ev->cr.bssid, params->bssid, ETH_ALEN);
822 next += ETH_ALEN;
7834704b 823 }
5349a0f7
VK		 824 if (params->req_ie_len) {
825 ev->cr.req_ie = next;
826 ev->cr.req_ie_len = params->req_ie_len;
827 memcpy((void *)ev->cr.req_ie, params->req_ie,
828 params->req_ie_len);
829 next += params->req_ie_len;
7834704b 830 }
5349a0f7
VK		 831 if (params->resp_ie_len) {
832 ev->cr.resp_ie = next;
833 ev->cr.resp_ie_len = params->resp_ie_len;
834 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
835 params->resp_ie_len);
836 next += params->resp_ie_len;
837 }
a3caf744
VK		 838 if (params->fils_kek_len) {
839 ev->cr.fils_kek = next;
840 ev->cr.fils_kek_len = params->fils_kek_len;
841 memcpy((void *)ev->cr.fils_kek, params->fils_kek,
842 params->fils_kek_len);
843 next += params->fils_kek_len;
844 }
845 if (params->pmk_len) {
846 ev->cr.pmk = next;
847 ev->cr.pmk_len = params->pmk_len;
848 memcpy((void *)ev->cr.pmk, params->pmk, params->pmk_len);
849 next += params->pmk_len;
850 }
851 if (params->pmkid) {
852 ev->cr.pmkid = next;
853 memcpy((void *)ev->cr.pmkid, params->pmkid, WLAN_PMKID_LEN);
854 next += WLAN_PMKID_LEN;
855 }
856 ev->cr.update_erp_next_seq_num = params->update_erp_next_seq_num;
857 if (params->update_erp_next_seq_num)
858 ev->cr.fils_erp_next_seq_num = params->fils_erp_next_seq_num;
5349a0f7
VK		 859 if (params->bss)
860 cfg80211_hold_bss(bss_from_pub(params->bss));
861 ev->cr.bss = params->bss;
862 ev->cr.status = params->status;
863 ev->cr.timeout_reason = params->timeout_reason;
667503dd
JB		 864
865 spin_lock_irqsave(&wdev->event_lock, flags);
866 list_add_tail(&ev->list, &wdev->event_list);
867 spin_unlock_irqrestore(&wdev->event_lock, flags);
e60d7443 868 queue_work(cfg80211_wq, &rdev->event_work);
f2129354 869}
5349a0f7 870EXPORT_SYMBOL(cfg80211_connect_done);
b23aa676 871
0e3a39b5 872/* Consumes bss object one way or another */
ed9d0102 873void __cfg80211_roamed(struct wireless_dev *wdev,
29ce6ecb 874 struct cfg80211_roam_info *info)
b23aa676 875{
3d23e349 876#ifdef CONFIG_CFG80211_WEXT
b23aa676
SO		 877 union iwreq_data wrqu;
878#endif
667503dd
JB		 879 ASSERT_WDEV_LOCK(wdev);
880
074ac8df
JB		 881 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
882 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
adbde344 883 goto out;
b23aa676 884
ceca7b71 885 if (WARN_ON(!wdev->current_bss))
adbde344 886 goto out;
b23aa676
SO		 887
888 cfg80211_unhold_bss(wdev->current_bss);
5b112d3d 889 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
b23aa676
SO		 890 wdev->current_bss = NULL;
891
29ce6ecb
AS		 892 if (WARN_ON(!info->bss))
893 return;
894
895 cfg80211_hold_bss(bss_from_pub(info->bss));
896 wdev->current_bss = bss_from_pub(info->bss);
b23aa676 897
f26cbf40 898 nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
29ce6ecb 899 wdev->netdev, info, GFP_KERNEL);
b23aa676 900
3d23e349 901#ifdef CONFIG_CFG80211_WEXT
29ce6ecb 902 if (info->req_ie) {
b23aa676 903 memset(&wrqu, 0, sizeof(wrqu));
29ce6ecb 904 wrqu.data.length = info->req_ie_len;
3409ff77 905 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
29ce6ecb 906 &wrqu, info->req_ie);
b23aa676
SO		 907 }
908
29ce6ecb 909 if (info->resp_ie) {
b23aa676 910 memset(&wrqu, 0, sizeof(wrqu));
29ce6ecb 911 wrqu.data.length = info->resp_ie_len;
667503dd 912 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
29ce6ecb 913 &wrqu, info->resp_ie);
b23aa676
SO		 914 }
915
916 memset(&wrqu, 0, sizeof(wrqu));
917 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
29ce6ecb
AS		 918 memcpy(wrqu.ap_addr.sa_data, info->bss->bssid, ETH_ALEN);
919 memcpy(wdev->wext.prev_bssid, info->bss->bssid, ETH_ALEN);
f401a6f7 920 wdev->wext.prev_bssid_valid = true;
667503dd 921 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
b23aa676 922#endif
adbde344
VT		 923
924 return;
925out:
29ce6ecb 926 cfg80211_put_bss(wdev->wiphy, info->bss);
adbde344 927}
adbde344 928
29ce6ecb
AS		 929/* Consumes info->bss object one way or another */
930void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
931 gfp_t gfp)
667503dd
JB		 932{
933 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 934 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
667503dd
JB		 935 struct cfg80211_event *ev;
936 unsigned long flags;
937
29ce6ecb
AS		 938 if (!info->bss) {
939 info->bss = cfg80211_get_bss(wdev->wiphy, info->channel,
940 info->bssid, wdev->ssid,
941 wdev->ssid_len,
942 wdev->conn_bss_type,
943 IEEE80211_PRIVACY_ANY);
944 }
945
946 if (WARN_ON(!info->bss))
adbde344
VT		 947 return;
948
29ce6ecb 949 ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len, gfp);
adbde344 950 if (!ev) {
29ce6ecb 951 cfg80211_put_bss(wdev->wiphy, info->bss);
667503dd 952 return;
adbde344 953 }
667503dd
JB		 954
955 ev->type = EVENT_ROAMED;
667503dd 956 ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
29ce6ecb
AS		 957 ev->rm.req_ie_len = info->req_ie_len;
958 memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
959 ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + info->req_ie_len;
960 ev->rm.resp_ie_len = info->resp_ie_len;
961 memcpy((void *)ev->rm.resp_ie, info->resp_ie, info->resp_ie_len);
962 ev->rm.bss = info->bss;
f45cbe6e 963 ev->rm.authorized = info->authorized;
667503dd
JB		 964
965 spin_lock_irqsave(&wdev->event_lock, flags);
966 list_add_tail(&ev->list, &wdev->event_list);
967 spin_unlock_irqrestore(&wdev->event_lock, flags);
e60d7443 968 queue_work(cfg80211_wq, &rdev->event_work);
667503dd 969}
29ce6ecb 970EXPORT_SYMBOL(cfg80211_roamed);
b23aa676 971
667503dd 972void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
6829c878 973 size_t ie_len, u16 reason, bool from_ap)
b23aa676
SO		 974{
975 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 976 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
fffd0934 977 int i;
3d23e349 978#ifdef CONFIG_CFG80211_WEXT
b23aa676
SO		 979 union iwreq_data wrqu;
980#endif
981
667503dd
JB		 982 ASSERT_WDEV_LOCK(wdev);
983
074ac8df
JB		 984 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
985 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
b23aa676
SO		 986 return;
987
b23aa676
SO		 988 if (wdev->current_bss) {
989 cfg80211_unhold_bss(wdev->current_bss);
5b112d3d 990 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
b23aa676
SO		 991 }
992
993 wdev->current_bss = NULL;
8dadadb7 994 wdev->ssid_len = 0;
bd2522b1 995 wdev->conn_owner_nlportid = 0;
b23aa676 996
fffd0934
JB		 997 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
998
b8607152
AS		 999 /* stop critical protocol if supported */
1000 if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1001 rdev->crit_proto_nlportid = 0;
1002 rdev_crit_proto_stop(rdev, wdev);
1003 }
1004
fffd0934
JB		 1005 /*
1006 * Delete all the keys ... pairwise keys can't really
1007 * exist any more anyway, but default keys might.
1008 */
1009 if (rdev->ops->del_key)
1010 for (i = 0; i < 6; i++)
e35e4d28 1011 rdev_del_key(rdev, dev, i, false, NULL);
b23aa676 1012
fa9ffc74
KP		 1013 rdev_set_qos_map(rdev, dev, NULL);
1014
3d23e349 1015#ifdef CONFIG_CFG80211_WEXT
b23aa676
SO		 1016 memset(&wrqu, 0, sizeof(wrqu));
1017 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1018 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
5f612033 1019 wdev->wext.connect.ssid_len = 0;
b23aa676 1020#endif
09d989d1
LR		 1021
1022 schedule_work(&cfg80211_disconnect_work);
b23aa676
SO		 1023}
1024
1025void cfg80211_disconnected(struct net_device *dev, u16 reason,
80279fb7
JB		 1026 const u8 *ie, size_t ie_len,
1027 bool locally_generated, gfp_t gfp)
b23aa676 1028{
667503dd 1029 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1030 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
667503dd
JB		 1031 struct cfg80211_event *ev;
1032 unsigned long flags;
1033
1034 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1035 if (!ev)
1036 return;
1037
1038 ev->type = EVENT_DISCONNECTED;
1039 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1040 ev->dc.ie_len = ie_len;
1041 memcpy((void *)ev->dc.ie, ie, ie_len);
1042 ev->dc.reason = reason;
80279fb7 1043 ev->dc.locally_generated = locally_generated;
667503dd
JB		 1044
1045 spin_lock_irqsave(&wdev->event_lock, flags);
1046 list_add_tail(&ev->list, &wdev->event_list);
1047 spin_unlock_irqrestore(&wdev->event_lock, flags);
e60d7443 1048 queue_work(cfg80211_wq, &rdev->event_work);
b23aa676
SO		 1049}
1050EXPORT_SYMBOL(cfg80211_disconnected);
1051
ceca7b71
JB		 1052/*
1053 * API calls for nl80211/wext compatibility code
1054 */
83739b03
JB		 1055int cfg80211_connect(struct cfg80211_registered_device *rdev,
1056 struct net_device *dev,
1057 struct cfg80211_connect_params *connect,
1058 struct cfg80211_cached_keys *connkeys,
1059 const u8 *prev_bssid)
b23aa676 1060{
b23aa676 1061 struct wireless_dev *wdev = dev->ieee80211_ptr;
667503dd
JB		 1062 int err;
1063
1064 ASSERT_WDEV_LOCK(wdev);
b23aa676 1065
fffd0934 1066 if (WARN_ON(wdev->connect_keys)) {
b47f610b 1067 kzfree(wdev->connect_keys);
fffd0934
JB		 1068 wdev->connect_keys = NULL;
1069 }
1070
7e7c8926
BG		 1071 cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1072 rdev->wiphy.ht_capa_mod_mask);
1073
fffd0934
JB		 1074 if (connkeys && connkeys->def >= 0) {
1075 int idx;
bcba8eae 1076 u32 cipher;
fffd0934
JB		 1077
1078 idx = connkeys->def;
bcba8eae 1079 cipher = connkeys->params[idx].cipher;
fffd0934 1080 /* If given a WEP key we may need it for shared key auth */
bcba8eae
SO		 1081 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1082 cipher == WLAN_CIPHER_SUITE_WEP104) {
fffd0934
JB		 1083 connect->key_idx = idx;
1084 connect->key = connkeys->params[idx].key;
1085 connect->key_len = connkeys->params[idx].key_len;
bcba8eae
SO		 1086
1087 /*
1088 * If ciphers are not set (e.g. when going through
1089 * iwconfig), we have to set them appropriately here.
1090 */
1091 if (connect->crypto.cipher_group == 0)
1092 connect->crypto.cipher_group = cipher;
1093
1094 if (connect->crypto.n_ciphers_pairwise == 0) {
1095 connect->crypto.n_ciphers_pairwise = 1;
1096 connect->crypto.ciphers_pairwise[0] = cipher;
1097 }
fffd0934 1098 }
b8676221
DS		 1099
1100 connect->crypto.wep_keys = connkeys->params;
1101 connect->crypto.wep_tx_key = connkeys->def;
f1c1f17a
JB		 1102 } else {
1103 if (WARN_ON(connkeys))
1104 return -EINVAL;
fffd0934
JB		 1105 }
1106
ceca7b71
JB		 1107 wdev->connect_keys = connkeys;
1108 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
1109 wdev->ssid_len = connect->ssid_len;
6829c878 1110
34d50519
LD		 1111 wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1112 IEEE80211_BSS_TYPE_ESS;
1113
ceca7b71
JB		 1114 if (!rdev->ops->connect)
1115 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1116 else
e35e4d28 1117 err = rdev_connect(rdev, dev, connect);
b23aa676 1118
ceca7b71
JB		 1119 if (err) {
1120 wdev->connect_keys = NULL;
1121 wdev->ssid_len = 0;
1122 return err;
6829c878 1123 }
ceca7b71
JB		 1124
1125 return 0;
b23aa676
SO		 1126}
1127
83739b03
JB		 1128int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1129 struct net_device *dev, u16 reason, bool wextev)
b23aa676 1130{
6829c878 1131 struct wireless_dev *wdev = dev->ieee80211_ptr;
dee8a973 1132 int err = 0;
b23aa676 1133
667503dd
JB		 1134 ASSERT_WDEV_LOCK(wdev);
1135
b47f610b 1136 kzfree(wdev->connect_keys);
fffd0934
JB		 1137 wdev->connect_keys = NULL;
1138
bd2522b1
AZ		 1139 wdev->conn_owner_nlportid = 0;
1140
dee8a973 1141 if (wdev->conn)
ceca7b71 1142 err = cfg80211_sme_disconnect(wdev, reason);
dee8a973 1143 else if (!rdev->ops->disconnect)
ceca7b71 1144 cfg80211_mlme_down(rdev, dev);
0711d638 1145 else if (wdev->ssid_len)
e35e4d28 1146 err = rdev_disconnect(rdev, dev, reason);
b23aa676 1147
ceca7b71 1148 return err;
19957bb3 1149}
bd2522b1
AZ		 1150
1151/*
1152 * Used to clean up after the connection / connection attempt owner socket
1153 * disconnects
1154 */
1155void cfg80211_autodisconnect_wk(struct work_struct *work)
1156{
1157 struct wireless_dev *wdev =
1158 container_of(work, struct wireless_dev, disconnect_wk);
1159 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1160
1161 wdev_lock(wdev);
1162
1163 if (wdev->conn_owner_nlportid) {
1164 /*
1165 * Use disconnect_bssid if still connecting and ops->disconnect
1166 * not implemented. Otherwise we can use cfg80211_disconnect.
1167 */
1168 if (rdev->ops->disconnect || wdev->current_bss)
1169 cfg80211_disconnect(rdev, wdev->netdev,
1170 WLAN_REASON_DEAUTH_LEAVING, true);
1171 else
1172 cfg80211_mlme_deauth(rdev, wdev->netdev,
1173 wdev->disconnect_bssid, NULL, 0,
1174 WLAN_REASON_DEAUTH_LEAVING, false);
1175 }
1176
1177 wdev_unlock(wdev);
1178}
Motorola kernel-slsi