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[PATCH] libertas: problems setting wpa keys
[linux-2.6-omap-h63xx.git] / drivers / net / wireless / libertas / assoc.c
1 /* Copyright (C) 2006, Red Hat, Inc. */
2
3 #include <linux/bitops.h>
4 #include <net/ieee80211.h>
5 #include <linux/etherdevice.h>
6
7 #include "assoc.h"
8 #include "join.h"
9 #include "decl.h"
10 #include "hostcmd.h"
11 #include "host.h"
12
13
14 static const u8 bssid_any[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
15 static const u8 bssid_off[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
16
17 static void print_assoc_req(const char * extra, struct assoc_request * assoc_req)
18 {
19         DECLARE_MAC_BUF(mac);
20         lbs_deb_assoc(
21                "#### Association Request: %s\n"
22                "       flags:      0x%08lX\n"
23                "       SSID:       '%s'\n"
24                "       channel:    %d\n"
25                "       band:       %d\n"
26                "       mode:       %d\n"
27                "       BSSID:      %s\n"
28                "       Encryption:%s%s%s\n"
29                "       auth:       %d\n",
30                extra, assoc_req->flags,
31                escape_essid(assoc_req->ssid, assoc_req->ssid_len),
32                assoc_req->channel, assoc_req->band, assoc_req->mode,
33                print_mac(mac, assoc_req->bssid),
34                assoc_req->secinfo.WPAenabled ? " WPA" : "",
35                assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
36                assoc_req->secinfo.wep_enabled ? " WEP" : "",
37                assoc_req->secinfo.auth_mode);
38 }
39
40
41 static int assoc_helper_essid(wlan_private *priv,
42                               struct assoc_request * assoc_req)
43 {
44         wlan_adapter *adapter = priv->adapter;
45         int ret = 0;
46         struct bss_descriptor * bss;
47         int channel = -1;
48
49         lbs_deb_enter(LBS_DEB_ASSOC);
50
51         /* FIXME: take channel into account when picking SSIDs if a channel
52          * is set.
53          */
54
55         if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
56                 channel = assoc_req->channel;
57
58         lbs_deb_assoc("New SSID requested: '%s'\n",
59                       escape_essid(assoc_req->ssid, assoc_req->ssid_len));
60         if (assoc_req->mode == IW_MODE_INFRA) {
61                 libertas_send_specific_ssid_scan(priv, assoc_req->ssid,
62                         assoc_req->ssid_len, 0);
63
64                 bss = libertas_find_ssid_in_list(adapter, assoc_req->ssid,
65                                 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
66                 if (bss != NULL) {
67                         lbs_deb_assoc("SSID found in scan list, associating\n");
68                         memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
69                         ret = wlan_associate(priv, assoc_req);
70                 } else {
71                         lbs_deb_assoc("SSID not found; cannot associate\n");
72                 }
73         } else if (assoc_req->mode == IW_MODE_ADHOC) {
74                 /* Scan for the network, do not save previous results.  Stale
75                  *   scan data will cause us to join a non-existant adhoc network
76                  */
77                 libertas_send_specific_ssid_scan(priv, assoc_req->ssid,
78                         assoc_req->ssid_len, 1);
79
80                 /* Search for the requested SSID in the scan table */
81                 bss = libertas_find_ssid_in_list(adapter, assoc_req->ssid,
82                                 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
83                 if (bss != NULL) {
84                         lbs_deb_assoc("SSID found, will join\n");
85                         memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
86                         libertas_join_adhoc_network(priv, assoc_req);
87                 } else {
88                         /* else send START command */
89                         lbs_deb_assoc("SSID not found, creating adhoc network\n");
90                         memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
91                                 IW_ESSID_MAX_SIZE);
92                         assoc_req->bss.ssid_len = assoc_req->ssid_len;
93                         libertas_start_adhoc_network(priv, assoc_req);
94                 }
95         }
96
97         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
98         return ret;
99 }
100
101
102 static int assoc_helper_bssid(wlan_private *priv,
103                               struct assoc_request * assoc_req)
104 {
105         wlan_adapter *adapter = priv->adapter;
106         int ret = 0;
107         struct bss_descriptor * bss;
108         DECLARE_MAC_BUF(mac);
109
110         lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
111                 print_mac(mac, assoc_req->bssid));
112
113         /* Search for index position in list for requested MAC */
114         bss = libertas_find_bssid_in_list(adapter, assoc_req->bssid,
115                             assoc_req->mode);
116         if (bss == NULL) {
117                 lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
118                         "cannot associate.\n", print_mac(mac, assoc_req->bssid));
119                 goto out;
120         }
121
122         memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
123         if (assoc_req->mode == IW_MODE_INFRA) {
124                 ret = wlan_associate(priv, assoc_req);
125                 lbs_deb_assoc("ASSOC: wlan_associate(bssid) returned %d\n", ret);
126         } else if (assoc_req->mode == IW_MODE_ADHOC) {
127                 libertas_join_adhoc_network(priv, assoc_req);
128         }
129
130 out:
131         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
132         return ret;
133 }
134
135
136 static int assoc_helper_associate(wlan_private *priv,
137                                   struct assoc_request * assoc_req)
138 {
139         int ret = 0, done = 0;
140
141         /* If we're given and 'any' BSSID, try associating based on SSID */
142
143         if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
144                 if (compare_ether_addr(bssid_any, assoc_req->bssid)
145                     && compare_ether_addr(bssid_off, assoc_req->bssid)) {
146                         ret = assoc_helper_bssid(priv, assoc_req);
147                         done = 1;
148                         if (ret) {
149                                 lbs_deb_assoc("ASSOC: bssid: ret = %d\n", ret);
150                         }
151                 }
152         }
153
154         if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
155                 ret = assoc_helper_essid(priv, assoc_req);
156                 if (ret) {
157                         lbs_deb_assoc("ASSOC: bssid: ret = %d\n", ret);
158                 }
159         }
160
161         return ret;
162 }
163
164
165 static int assoc_helper_mode(wlan_private *priv,
166                              struct assoc_request * assoc_req)
167 {
168         wlan_adapter *adapter = priv->adapter;
169         int ret = 0;
170
171         lbs_deb_enter(LBS_DEB_ASSOC);
172
173         if (assoc_req->mode == adapter->mode)
174                 goto done;
175
176         if (assoc_req->mode == IW_MODE_INFRA) {
177                 if (adapter->psstate != PS_STATE_FULL_POWER)
178                         libertas_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
179                 adapter->psmode = WLAN802_11POWERMODECAM;
180         }
181
182         adapter->mode = assoc_req->mode;
183         ret = libertas_prepare_and_send_command(priv,
184                                     CMD_802_11_SNMP_MIB,
185                                     0, CMD_OPTION_WAITFORRSP,
186                                     OID_802_11_INFRASTRUCTURE_MODE,
187                 /* Shoot me now */  (void *) (size_t) assoc_req->mode);
188
189 done:
190         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
191         return ret;
192 }
193
194
195 static int update_channel(wlan_private * priv)
196 {
197         /* the channel in f/w could be out of sync, get the current channel */
198         return libertas_prepare_and_send_command(priv, CMD_802_11_RF_CHANNEL,
199                                     CMD_OPT_802_11_RF_CHANNEL_GET,
200                                     CMD_OPTION_WAITFORRSP, 0, NULL);
201 }
202
203 void libertas_sync_channel(struct work_struct *work)
204 {
205         wlan_private *priv = container_of(work, wlan_private, sync_channel);
206
207         if (update_channel(priv) != 0)
208                 lbs_pr_info("Channel synchronization failed.");
209 }
210
211 static int assoc_helper_channel(wlan_private *priv,
212                                 struct assoc_request * assoc_req)
213 {
214         wlan_adapter *adapter = priv->adapter;
215         int ret = 0;
216
217         lbs_deb_enter(LBS_DEB_ASSOC);
218
219         ret = update_channel(priv);
220         if (ret < 0) {
221                 lbs_deb_assoc("ASSOC: channel: error getting channel.");
222         }
223
224         if (assoc_req->channel == adapter->curbssparams.channel)
225                 goto done;
226
227         lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
228                adapter->curbssparams.channel, assoc_req->channel);
229
230         ret = libertas_prepare_and_send_command(priv, CMD_802_11_RF_CHANNEL,
231                                 CMD_OPT_802_11_RF_CHANNEL_SET,
232                                 CMD_OPTION_WAITFORRSP, 0, &assoc_req->channel);
233         if (ret < 0) {
234                 lbs_deb_assoc("ASSOC: channel: error setting channel.");
235         }
236
237         ret = update_channel(priv);
238         if (ret < 0) {
239                 lbs_deb_assoc("ASSOC: channel: error getting channel.");
240         }
241
242         if (assoc_req->channel != adapter->curbssparams.channel) {
243                 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d",
244                               assoc_req->channel);
245                 goto done;
246         }
247
248         if (   assoc_req->secinfo.wep_enabled
249             &&   (assoc_req->wep_keys[0].len
250                || assoc_req->wep_keys[1].len
251                || assoc_req->wep_keys[2].len
252                || assoc_req->wep_keys[3].len)) {
253                 /* Make sure WEP keys are re-sent to firmware */
254                 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
255         }
256
257         /* Must restart/rejoin adhoc networks after channel change */
258         set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
259
260 done:
261         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
262         return ret;
263 }
264
265
266 static int assoc_helper_wep_keys(wlan_private *priv,
267                                  struct assoc_request * assoc_req)
268 {
269         wlan_adapter *adapter = priv->adapter;
270         int i;
271         int ret = 0;
272
273         lbs_deb_enter(LBS_DEB_ASSOC);
274
275         /* Set or remove WEP keys */
276         if (   assoc_req->wep_keys[0].len
277             || assoc_req->wep_keys[1].len
278             || assoc_req->wep_keys[2].len
279             || assoc_req->wep_keys[3].len) {
280                 ret = libertas_prepare_and_send_command(priv,
281                                             CMD_802_11_SET_WEP,
282                                             CMD_ACT_ADD,
283                                             CMD_OPTION_WAITFORRSP,
284                                             0, assoc_req);
285         } else {
286                 ret = libertas_prepare_and_send_command(priv,
287                                             CMD_802_11_SET_WEP,
288                                             CMD_ACT_REMOVE,
289                                             CMD_OPTION_WAITFORRSP,
290                                             0, NULL);
291         }
292
293         if (ret)
294                 goto out;
295
296         /* enable/disable the MAC's WEP packet filter */
297         if (assoc_req->secinfo.wep_enabled)
298                 adapter->currentpacketfilter |= CMD_ACT_MAC_WEP_ENABLE;
299         else
300                 adapter->currentpacketfilter &= ~CMD_ACT_MAC_WEP_ENABLE;
301         ret = libertas_set_mac_packet_filter(priv);
302         if (ret)
303                 goto out;
304
305         mutex_lock(&adapter->lock);
306
307         /* Copy WEP keys into adapter wep key fields */
308         for (i = 0; i < 4; i++) {
309                 memcpy(&adapter->wep_keys[i], &assoc_req->wep_keys[i],
310                         sizeof(struct enc_key));
311         }
312         adapter->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
313
314         mutex_unlock(&adapter->lock);
315
316 out:
317         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
318         return ret;
319 }
320
321 static int assoc_helper_secinfo(wlan_private *priv,
322                                 struct assoc_request * assoc_req)
323 {
324         wlan_adapter *adapter = priv->adapter;
325         int ret = 0;
326         u32 do_wpa;
327         u32 rsn = 0;
328
329         lbs_deb_enter(LBS_DEB_ASSOC);
330
331         memcpy(&adapter->secinfo, &assoc_req->secinfo,
332                 sizeof(struct wlan_802_11_security));
333
334         ret = libertas_set_mac_packet_filter(priv);
335         if (ret)
336                 goto out;
337
338         /* If RSN is already enabled, don't try to enable it again, since
339          * ENABLE_RSN resets internal state machines and will clobber the
340          * 4-way WPA handshake.
341          */
342
343         /* Get RSN enabled/disabled */
344         ret = libertas_prepare_and_send_command(priv,
345                                     CMD_802_11_ENABLE_RSN,
346                                     CMD_ACT_GET,
347                                     CMD_OPTION_WAITFORRSP,
348                                     0, &rsn);
349         if (ret) {
350                 lbs_deb_assoc("Failed to get RSN status: %d", ret);
351                 goto out;
352         }
353
354         /* Don't re-enable RSN if it's already enabled */
355         do_wpa = (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled);
356         if (do_wpa == rsn)
357                 goto out;
358
359         /* Set RSN enabled/disabled */
360         rsn = do_wpa;
361         ret = libertas_prepare_and_send_command(priv,
362                                     CMD_802_11_ENABLE_RSN,
363                                     CMD_ACT_SET,
364                                     CMD_OPTION_WAITFORRSP,
365                                     0, &rsn);
366
367 out:
368         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
369         return ret;
370 }
371
372
373 static int assoc_helper_wpa_keys(wlan_private *priv,
374                                  struct assoc_request * assoc_req)
375 {
376         int ret = 0;
377         unsigned int flags = assoc_req->flags;
378
379         lbs_deb_enter(LBS_DEB_ASSOC);
380
381         /* Work around older firmware bug where WPA unicast and multicast
382          * keys must be set independently.  Seen in SDIO parts with firmware
383          * version 5.0.11p0.
384          */
385
386         if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
387                 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
388                 ret = libertas_prepare_and_send_command(priv,
389                                         CMD_802_11_KEY_MATERIAL,
390                                         CMD_ACT_SET,
391                                         CMD_OPTION_WAITFORRSP,
392                                         0, assoc_req);
393                 assoc_req->flags = flags;
394         }
395
396         if (ret)
397                 goto out;
398
399         if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
400                 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
401
402                 ret = libertas_prepare_and_send_command(priv,
403                                         CMD_802_11_KEY_MATERIAL,
404                                         CMD_ACT_SET,
405                                         CMD_OPTION_WAITFORRSP,
406                                         0, assoc_req);
407                 assoc_req->flags = flags;
408         }
409
410 out:
411         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
412         return ret;
413 }
414
415
416 static int assoc_helper_wpa_ie(wlan_private *priv,
417                                struct assoc_request * assoc_req)
418 {
419         wlan_adapter *adapter = priv->adapter;
420         int ret = 0;
421
422         lbs_deb_enter(LBS_DEB_ASSOC);
423
424         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
425                 memcpy(&adapter->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
426                 adapter->wpa_ie_len = assoc_req->wpa_ie_len;
427         } else {
428                 memset(&adapter->wpa_ie, 0, MAX_WPA_IE_LEN);
429                 adapter->wpa_ie_len = 0;
430         }
431
432         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
433         return ret;
434 }
435
436
437 static int should_deauth_infrastructure(wlan_adapter *adapter,
438                                         struct assoc_request * assoc_req)
439 {
440         if (adapter->connect_status != LIBERTAS_CONNECTED)
441                 return 0;
442
443         if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
444                 lbs_deb_assoc("Deauthenticating due to new SSID in "
445                         " configuration request.\n");
446                 return 1;
447         }
448
449         if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
450                 if (adapter->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
451                         lbs_deb_assoc("Deauthenticating due to updated security "
452                                 "info in configuration request.\n");
453                         return 1;
454                 }
455         }
456
457         if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
458                 lbs_deb_assoc("Deauthenticating due to new BSSID in "
459                         " configuration request.\n");
460                 return 1;
461         }
462
463         if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
464                 lbs_deb_assoc("Deauthenticating due to channel switch.\n");
465                 return 1;
466         }
467
468         /* FIXME: deal with 'auto' mode somehow */
469         if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
470                 if (assoc_req->mode != IW_MODE_INFRA)
471                         return 1;
472         }
473
474         return 0;
475 }
476
477
478 static int should_stop_adhoc(wlan_adapter *adapter,
479                              struct assoc_request * assoc_req)
480 {
481         if (adapter->connect_status != LIBERTAS_CONNECTED)
482                 return 0;
483
484         if (libertas_ssid_cmp(adapter->curbssparams.ssid,
485                               adapter->curbssparams.ssid_len,
486                               assoc_req->ssid, assoc_req->ssid_len) != 0)
487                 return 1;
488
489         /* FIXME: deal with 'auto' mode somehow */
490         if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
491                 if (assoc_req->mode != IW_MODE_ADHOC)
492                         return 1;
493         }
494
495         if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
496                 if (assoc_req->channel != adapter->curbssparams.channel)
497                         return 1;
498         }
499
500         return 0;
501 }
502
503
504 void libertas_association_worker(struct work_struct *work)
505 {
506         wlan_private *priv = container_of(work, wlan_private, assoc_work.work);
507         wlan_adapter *adapter = priv->adapter;
508         struct assoc_request * assoc_req = NULL;
509         int ret = 0;
510         int find_any_ssid = 0;
511         DECLARE_MAC_BUF(mac);
512
513         lbs_deb_enter(LBS_DEB_ASSOC);
514
515         mutex_lock(&adapter->lock);
516         assoc_req = adapter->pending_assoc_req;
517         adapter->pending_assoc_req = NULL;
518         adapter->in_progress_assoc_req = assoc_req;
519         mutex_unlock(&adapter->lock);
520
521         if (!assoc_req)
522                 goto done;
523
524         print_assoc_req(__func__, assoc_req);
525
526         /* If 'any' SSID was specified, find an SSID to associate with */
527         if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
528             && !assoc_req->ssid_len)
529                 find_any_ssid = 1;
530
531         /* But don't use 'any' SSID if there's a valid locked BSSID to use */
532         if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
533                 if (compare_ether_addr(assoc_req->bssid, bssid_any)
534                     && compare_ether_addr(assoc_req->bssid, bssid_off))
535                         find_any_ssid = 0;
536         }
537
538         if (find_any_ssid) {
539                 u8 new_mode;
540
541                 ret = libertas_find_best_network_ssid(priv, assoc_req->ssid,
542                                 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
543                 if (ret) {
544                         lbs_deb_assoc("Could not find best network\n");
545                         ret = -ENETUNREACH;
546                         goto out;
547                 }
548
549                 /* Ensure we switch to the mode of the AP */
550                 if (assoc_req->mode == IW_MODE_AUTO) {
551                         set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
552                         assoc_req->mode = new_mode;
553                 }
554         }
555
556         /*
557          * Check if the attributes being changing require deauthentication
558          * from the currently associated infrastructure access point.
559          */
560         if (adapter->mode == IW_MODE_INFRA) {
561                 if (should_deauth_infrastructure(adapter, assoc_req)) {
562                         ret = libertas_send_deauthentication(priv);
563                         if (ret) {
564                                 lbs_deb_assoc("Deauthentication due to new "
565                                         "configuration request failed: %d\n",
566                                         ret);
567                         }
568                 }
569         } else if (adapter->mode == IW_MODE_ADHOC) {
570                 if (should_stop_adhoc(adapter, assoc_req)) {
571                         ret = libertas_stop_adhoc_network(priv);
572                         if (ret) {
573                                 lbs_deb_assoc("Teardown of AdHoc network due to "
574                                         "new configuration request failed: %d\n",
575                                         ret);
576                         }
577
578                 }
579         }
580
581         /* Send the various configuration bits to the firmware */
582         if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
583                 ret = assoc_helper_mode(priv, assoc_req);
584                 if (ret) {
585                         lbs_deb_assoc("ASSOC(:%d) mode: ret = %d\n",
586                                       __LINE__, ret);
587                         goto out;
588                 }
589         }
590
591         if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
592                 ret = assoc_helper_channel(priv, assoc_req);
593                 if (ret) {
594                         lbs_deb_assoc("ASSOC(:%d) channel: ret = %d\n",
595                                       __LINE__, ret);
596                         goto out;
597                 }
598         }
599
600         if (   test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
601             || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
602                 ret = assoc_helper_wep_keys(priv, assoc_req);
603                 if (ret) {
604                         lbs_deb_assoc("ASSOC(:%d) wep_keys: ret = %d\n",
605                                       __LINE__, ret);
606                         goto out;
607                 }
608         }
609
610         if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
611                 ret = assoc_helper_secinfo(priv, assoc_req);
612                 if (ret) {
613                         lbs_deb_assoc("ASSOC(:%d) secinfo: ret = %d\n",
614                                       __LINE__, ret);
615                         goto out;
616                 }
617         }
618
619         if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
620                 ret = assoc_helper_wpa_ie(priv, assoc_req);
621                 if (ret) {
622                         lbs_deb_assoc("ASSOC(:%d) wpa_ie: ret = %d\n",
623                                       __LINE__, ret);
624                         goto out;
625                 }
626         }
627
628         if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
629             || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
630                 ret = assoc_helper_wpa_keys(priv, assoc_req);
631                 if (ret) {
632                         lbs_deb_assoc("ASSOC(:%d) wpa_keys: ret = %d\n",
633                                       __LINE__, ret);
634                         goto out;
635                 }
636         }
637
638         /* SSID/BSSID should be the _last_ config option set, because they
639          * trigger the association attempt.
640          */
641         if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
642             || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
643                 int success = 1;
644
645                 ret = assoc_helper_associate(priv, assoc_req);
646                 if (ret) {
647                         lbs_deb_assoc("ASSOC: association attempt unsuccessful: %d\n",
648                                 ret);
649                         success = 0;
650                 }
651
652                 if (adapter->connect_status != LIBERTAS_CONNECTED) {
653                         lbs_deb_assoc("ASSOC: association attempt unsuccessful, "
654                                 "not connected.\n");
655                         success = 0;
656                 }
657
658                 if (success) {
659                         lbs_deb_assoc("ASSOC: association attempt successful. "
660                                 "Associated to '%s' (%s)\n",
661                                 escape_essid(adapter->curbssparams.ssid,
662                                              adapter->curbssparams.ssid_len),
663                                 print_mac(mac, adapter->curbssparams.bssid));
664                         libertas_prepare_and_send_command(priv,
665                                 CMD_802_11_RSSI,
666                                 0, CMD_OPTION_WAITFORRSP, 0, NULL);
667
668                         libertas_prepare_and_send_command(priv,
669                                 CMD_802_11_GET_LOG,
670                                 0, CMD_OPTION_WAITFORRSP, 0, NULL);
671                 } else {
672                         ret = -1;
673                 }
674         }
675
676 out:
677         if (ret) {
678                 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
679                         ret);
680         }
681
682         mutex_lock(&adapter->lock);
683         adapter->in_progress_assoc_req = NULL;
684         mutex_unlock(&adapter->lock);
685         kfree(assoc_req);
686
687 done:
688         lbs_deb_leave(LBS_DEB_ASSOC);
689 }
690
691
692 /*
693  * Caller MUST hold any necessary locks
694  */
695 struct assoc_request * wlan_get_association_request(wlan_adapter *adapter)
696 {
697         struct assoc_request * assoc_req;
698
699         if (!adapter->pending_assoc_req) {
700                 adapter->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
701                                                      GFP_KERNEL);
702                 if (!adapter->pending_assoc_req) {
703                         lbs_pr_info("Not enough memory to allocate association"
704                                 " request!\n");
705                         return NULL;
706                 }
707         }
708
709         /* Copy current configuration attributes to the association request,
710          * but don't overwrite any that are already set.
711          */
712         assoc_req = adapter->pending_assoc_req;
713         if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
714                 memcpy(&assoc_req->ssid, &adapter->curbssparams.ssid,
715                        IW_ESSID_MAX_SIZE);
716                 assoc_req->ssid_len = adapter->curbssparams.ssid_len;
717         }
718
719         if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
720                 assoc_req->channel = adapter->curbssparams.channel;
721
722         if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
723                 assoc_req->band = adapter->curbssparams.band;
724
725         if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
726                 assoc_req->mode = adapter->mode;
727
728         if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
729                 memcpy(&assoc_req->bssid, adapter->curbssparams.bssid,
730                         ETH_ALEN);
731         }
732
733         if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
734                 int i;
735                 for (i = 0; i < 4; i++) {
736                         memcpy(&assoc_req->wep_keys[i], &adapter->wep_keys[i],
737                                 sizeof(struct enc_key));
738                 }
739         }
740
741         if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
742                 assoc_req->wep_tx_keyidx = adapter->wep_tx_keyidx;
743
744         if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
745                 memcpy(&assoc_req->wpa_mcast_key, &adapter->wpa_mcast_key,
746                         sizeof(struct enc_key));
747         }
748
749         if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
750                 memcpy(&assoc_req->wpa_unicast_key, &adapter->wpa_unicast_key,
751                         sizeof(struct enc_key));
752         }
753
754         if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
755                 memcpy(&assoc_req->secinfo, &adapter->secinfo,
756                         sizeof(struct wlan_802_11_security));
757         }
758
759         if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
760                 memcpy(&assoc_req->wpa_ie, &adapter->wpa_ie,
761                         MAX_WPA_IE_LEN);
762                 assoc_req->wpa_ie_len = adapter->wpa_ie_len;
763         }
764
765         print_assoc_req(__func__, assoc_req);
766
767         return assoc_req;
768 }