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libertas: Extend MESH_CONFIG command to access non-volatile configuration
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / libertas / assoc.c
CommitLineData
876c9d3a
MT		 1/* Copyright (C) 2006, Red Hat, Inc. */
2
3cf20931 3#include <linux/etherdevice.h>
876c9d3a
MT		 4
5#include "assoc.h"
876c9d3a 6#include "decl.h"
876c9d3a 7#include "host.h"
245bf20f 8#include "scan.h"
2dd4b262 9#include "cmd.h"
876c9d3a
MT		 10
11
5a6e0434
IH		 12static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
13 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
14static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
15 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
876c9d3a 16
697900ac
HS		 17/* The firmware needs certain bits masked out of the beacon-derviced capability
18 * field when associating/joining to BSSs.
19 */
20#define CAPINFO_MASK (~(0xda00))
21
22
23
24/**
25 * @brief Associate to a specific BSS discovered in a scan
26 *
27 * @param priv A pointer to struct lbs_private structure
28 * @param pbssdesc Pointer to the BSS descriptor to associate with.
29 *
30 * @return 0-success, otherwise fail
31 */
32static int lbs_associate(struct lbs_private *priv,
33 struct assoc_request *assoc_req)
34{
35 int ret;
36
37 lbs_deb_enter(LBS_DEB_ASSOC);
38
39 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
40 0, CMD_OPTION_WAITFORRSP,
41 0, assoc_req->bss.bssid);
42
43 if (ret)
44 goto done;
45
46 /* set preamble to firmware */
47 if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
48 (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
49 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
50 else
51 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
52
53 lbs_set_radio_control(priv);
54
55 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
56 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
57
58done:
59 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
60 return ret;
61}
62
63/**
64 * @brief Join an adhoc network found in a previous scan
65 *
66 * @param priv A pointer to struct lbs_private structure
67 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
68 * to attempt to join
69 *
70 * @return 0--success, -1--fail
71 */
72static int lbs_join_adhoc_network(struct lbs_private *priv,
73 struct assoc_request *assoc_req)
74{
75 struct bss_descriptor *bss = &assoc_req->bss;
76 int ret = 0;
77
78 lbs_deb_join("current SSID '%s', ssid length %u\n",
79 escape_essid(priv->curbssparams.ssid,
80 priv->curbssparams.ssid_len),
81 priv->curbssparams.ssid_len);
82 lbs_deb_join("requested ssid '%s', ssid length %u\n",
83 escape_essid(bss->ssid, bss->ssid_len),
84 bss->ssid_len);
85
86 /* check if the requested SSID is already joined */
87 if (priv->curbssparams.ssid_len &&
88 !lbs_ssid_cmp(priv->curbssparams.ssid,
89 priv->curbssparams.ssid_len,
90 bss->ssid, bss->ssid_len) &&
91 (priv->mode == IW_MODE_ADHOC) &&
92 (priv->connect_status == LBS_CONNECTED)) {
93 union iwreq_data wrqu;
94
95 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
96 "current, not attempting to re-join");
97
98 /* Send the re-association event though, because the association
99 * request really was successful, even if just a null-op.
100 */
101 memset(&wrqu, 0, sizeof(wrqu));
102 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
103 ETH_ALEN);
104 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
105 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
106 goto out;
107 }
108
109 /* Use shortpreamble only when both creator and card supports
110 short preamble */
111 if (!(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) ||
112 !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
113 lbs_deb_join("AdhocJoin: Long preamble\n");
114 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
115 } else {
116 lbs_deb_join("AdhocJoin: Short preamble\n");
117 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
118 }
119
120 lbs_set_radio_control(priv);
121
122 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
123 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
124
125 priv->adhoccreate = 0;
126
127 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
128 0, CMD_OPTION_WAITFORRSP,
129 OID_802_11_SSID, assoc_req);
130
131out:
132 return ret;
133}
134
135/**
136 * @brief Start an Adhoc Network
137 *
138 * @param priv A pointer to struct lbs_private structure
139 * @param adhocssid The ssid of the Adhoc Network
140 * @return 0--success, -1--fail
141 */
142static int lbs_start_adhoc_network(struct lbs_private *priv,
143 struct assoc_request *assoc_req)
144{
145 int ret = 0;
146
147 priv->adhoccreate = 1;
148
149 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
150 lbs_deb_join("AdhocStart: Short preamble\n");
151 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
152 } else {
153 lbs_deb_join("AdhocStart: Long preamble\n");
154 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
155 }
156
157 lbs_set_radio_control(priv);
158
159 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
160 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
161
162 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
163 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
164
165 return ret;
166}
167
168int lbs_stop_adhoc_network(struct lbs_private *priv)
169{
170 return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
171 0, CMD_OPTION_WAITFORRSP, 0, NULL);
172}
e76850d6 173
245bf20f
HS		 174static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
175 struct bss_descriptor *match_bss)
176{
177 if (!secinfo->wep_enabled && !secinfo->WPAenabled
178 && !secinfo->WPA2enabled
179 && match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC
180 && match_bss->rsn_ie[0] != MFIE_TYPE_RSN
181 && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
182 return 1;
183 else
184 return 0;
185}
186
187static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
188 struct bss_descriptor *match_bss)
189{
190 if (secinfo->wep_enabled && !secinfo->WPAenabled
191 && !secinfo->WPA2enabled
192 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
193 return 1;
194 else
195 return 0;
196}
197
198static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
199 struct bss_descriptor *match_bss)
200{
201 if (!secinfo->wep_enabled && secinfo->WPAenabled
202 && (match_bss->wpa_ie[0] == MFIE_TYPE_GENERIC)
203 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
204 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
205 )
206 return 1;
207 else
208 return 0;
209}
210
211static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
212 struct bss_descriptor *match_bss)
213{
214 if (!secinfo->wep_enabled && secinfo->WPA2enabled &&
215 (match_bss->rsn_ie[0] == MFIE_TYPE_RSN)
216 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
217 (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
218 )
219 return 1;
220 else
221 return 0;
222}
223
224static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
225 struct bss_descriptor *match_bss)
226{
227 if (!secinfo->wep_enabled && !secinfo->WPAenabled
228 && !secinfo->WPA2enabled
229 && (match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC)
230 && (match_bss->rsn_ie[0] != MFIE_TYPE_RSN)
231 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
232 return 1;
233 else
234 return 0;
235}
236
237/**
238 * @brief Check if a scanned network compatible with the driver settings
239 *
240 * WEP WPA WPA2 ad-hoc encrypt Network
241 * enabled enabled enabled AES mode privacy WPA WPA2 Compatible
242 * 0 0 0 0 NONE 0 0 0 yes No security
243 * 1 0 0 0 NONE 1 0 0 yes Static WEP
244 * 0 1 0 0 x 1x 1 x yes WPA
245 * 0 0 1 0 x 1x x 1 yes WPA2
246 * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
247 * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
248 *
249 *
250 * @param priv A pointer to struct lbs_private
251 * @param index Index in scantable to check against current driver settings
252 * @param mode Network mode: Infrastructure or IBSS
253 *
254 * @return Index in scantable, or error code if negative
255 */
256static int is_network_compatible(struct lbs_private *priv,
257 struct bss_descriptor *bss, uint8_t mode)
258{
259 int matched = 0;
260
261 lbs_deb_enter(LBS_DEB_SCAN);
262
263 if (bss->mode != mode)
264 goto done;
265
266 matched = match_bss_no_security(&priv->secinfo, bss);
267 if (matched)
268 goto done;
269 matched = match_bss_static_wep(&priv->secinfo, bss);
270 if (matched)
271 goto done;
272 matched = match_bss_wpa(&priv->secinfo, bss);
273 if (matched) {
274 lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x "
275 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
276 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
277 priv->secinfo.wep_enabled ? "e" : "d",
278 priv->secinfo.WPAenabled ? "e" : "d",
279 priv->secinfo.WPA2enabled ? "e" : "d",
280 (bss->capability & WLAN_CAPABILITY_PRIVACY));
281 goto done;
282 }
283 matched = match_bss_wpa2(&priv->secinfo, bss);
284 if (matched) {
285 lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x "
286 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
287 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
288 priv->secinfo.wep_enabled ? "e" : "d",
289 priv->secinfo.WPAenabled ? "e" : "d",
290 priv->secinfo.WPA2enabled ? "e" : "d",
291 (bss->capability & WLAN_CAPABILITY_PRIVACY));
292 goto done;
293 }
294 matched = match_bss_dynamic_wep(&priv->secinfo, bss);
295 if (matched) {
296 lbs_deb_scan("is_network_compatible() dynamic WEP: "
297 "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n",
298 bss->wpa_ie[0], bss->rsn_ie[0],
299 (bss->capability & WLAN_CAPABILITY_PRIVACY));
300 goto done;
301 }
302
303 /* bss security settings don't match those configured on card */
304 lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x "
305 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n",
306 bss->wpa_ie[0], bss->rsn_ie[0],
307 priv->secinfo.wep_enabled ? "e" : "d",
308 priv->secinfo.WPAenabled ? "e" : "d",
309 priv->secinfo.WPA2enabled ? "e" : "d",
310 (bss->capability & WLAN_CAPABILITY_PRIVACY));
311
312done:
313 lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
314 return matched;
315}
316
317/**
318 * @brief This function finds a specific compatible BSSID in the scan list
319 *
320 * Used in association code
321 *
322 * @param priv A pointer to struct lbs_private
323 * @param bssid BSSID to find in the scan list
324 * @param mode Network mode: Infrastructure or IBSS
325 *
326 * @return index in BSSID list, or error return code (< 0)
327 */
328static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
329 uint8_t *bssid, uint8_t mode)
330{
331 struct bss_descriptor *iter_bss;
332 struct bss_descriptor *found_bss = NULL;
333
334 lbs_deb_enter(LBS_DEB_SCAN);
335
336 if (!bssid)
337 goto out;
338
339 lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN);
340
341 /* Look through the scan table for a compatible match. The loop will
342 * continue past a matched bssid that is not compatible in case there
343 * is an AP with multiple SSIDs assigned to the same BSSID
344 */
345 mutex_lock(&priv->lock);
346 list_for_each_entry(iter_bss, &priv->network_list, list) {
347 if (compare_ether_addr(iter_bss->bssid, bssid))
348 continue; /* bssid doesn't match */
349 switch (mode) {
350 case IW_MODE_INFRA:
351 case IW_MODE_ADHOC:
352 if (!is_network_compatible(priv, iter_bss, mode))
353 break;
354 found_bss = iter_bss;
355 break;
356 default:
357 found_bss = iter_bss;
358 break;
359 }
360 }
361 mutex_unlock(&priv->lock);
362
363out:
364 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
365 return found_bss;
366}
367
368/**
369 * @brief This function finds ssid in ssid list.
370 *
371 * Used in association code
372 *
373 * @param priv A pointer to struct lbs_private
374 * @param ssid SSID to find in the list
375 * @param bssid BSSID to qualify the SSID selection (if provided)
376 * @param mode Network mode: Infrastructure or IBSS
377 *
378 * @return index in BSSID list
379 */
380static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
381 uint8_t *ssid, uint8_t ssid_len,
382 uint8_t *bssid, uint8_t mode,
383 int channel)
384{
385 u32 bestrssi = 0;
386 struct bss_descriptor *iter_bss = NULL;
387 struct bss_descriptor *found_bss = NULL;
388 struct bss_descriptor *tmp_oldest = NULL;
389
390 lbs_deb_enter(LBS_DEB_SCAN);
391
392 mutex_lock(&priv->lock);
393
394 list_for_each_entry(iter_bss, &priv->network_list, list) {
395 if (!tmp_oldest ||
396 (iter_bss->last_scanned < tmp_oldest->last_scanned))
397 tmp_oldest = iter_bss;
398
399 if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
400 ssid, ssid_len) != 0)
401 continue; /* ssid doesn't match */
402 if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
403 continue; /* bssid doesn't match */
404 if ((channel > 0) && (iter_bss->channel != channel))
405 continue; /* channel doesn't match */
406
407 switch (mode) {
408 case IW_MODE_INFRA:
409 case IW_MODE_ADHOC:
410 if (!is_network_compatible(priv, iter_bss, mode))
411 break;
412
413 if (bssid) {
414 /* Found requested BSSID */
415 found_bss = iter_bss;
416 goto out;
417 }
418
419 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
420 bestrssi = SCAN_RSSI(iter_bss->rssi);
421 found_bss = iter_bss;
422 }
423 break;
424 case IW_MODE_AUTO:
425 default:
426 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
427 bestrssi = SCAN_RSSI(iter_bss->rssi);
428 found_bss = iter_bss;
429 }
430 break;
431 }
432 }
433
434out:
435 mutex_unlock(&priv->lock);
436 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
437 return found_bss;
438}
439
69f9032d 440static int assoc_helper_essid(struct lbs_private *priv,
876c9d3a
MT		 441 struct assoc_request * assoc_req)
442{
876c9d3a 443 int ret = 0;
fcdb53db 444 struct bss_descriptor * bss;
aeea0ab4 445 int channel = -1;
876c9d3a 446
9012b28a 447 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 448
ef9a264b
DW		 449 /* FIXME: take channel into account when picking SSIDs if a channel
450 * is set.
451 */
452
aeea0ab4
DW		 453 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
454 channel = assoc_req->channel;
455
0765af44 456 lbs_deb_assoc("SSID '%s' requested\n",
d8efea25 457 escape_essid(assoc_req->ssid, assoc_req->ssid_len));
0dc5a290 458 if (assoc_req->mode == IW_MODE_INFRA) {
10078321 459 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
52933d81 460 assoc_req->ssid_len);
876c9d3a 461
aa21c004 462 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
d8efea25 463 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
fcdb53db 464 if (bss != NULL) {
e76850d6 465 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
10078321 466 ret = lbs_associate(priv, assoc_req);
876c9d3a 467 } else {
d8efea25 468 lbs_deb_assoc("SSID not found; cannot associate\n");
876c9d3a 469 }
0dc5a290 470 } else if (assoc_req->mode == IW_MODE_ADHOC) {
876c9d3a
MT		 471 /* Scan for the network, do not save previous results. Stale
472 * scan data will cause us to join a non-existant adhoc network
473 */
10078321 474 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
52933d81 475 assoc_req->ssid_len);
876c9d3a
MT		 476
477 /* Search for the requested SSID in the scan table */
aa21c004 478 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
d8efea25 479 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
fcdb53db 480 if (bss != NULL) {
d8efea25 481 lbs_deb_assoc("SSID found, will join\n");
e76850d6 482 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
10078321 483 lbs_join_adhoc_network(priv, assoc_req);
876c9d3a
MT		 484 } else {
485 /* else send START command */
d8efea25 486 lbs_deb_assoc("SSID not found, creating adhoc network\n");
e76850d6 487 memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
d8efea25
DW		 488 IW_ESSID_MAX_SIZE);
489 assoc_req->bss.ssid_len = assoc_req->ssid_len;
10078321 490 lbs_start_adhoc_network(priv, assoc_req);
876c9d3a 491 }
876c9d3a
MT		 492 }
493
9012b28a 494 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 495 return ret;
496}
497
498
69f9032d 499static int assoc_helper_bssid(struct lbs_private *priv,
876c9d3a
MT		 500 struct assoc_request * assoc_req)
501{
fcdb53db
DW		 502 int ret = 0;
503 struct bss_descriptor * bss;
0795af57 504 DECLARE_MAC_BUF(mac);
876c9d3a 505
0795af57
JP		 506 lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
507 print_mac(mac, assoc_req->bssid));
876c9d3a
MT		 508
509 /* Search for index position in list for requested MAC */
aa21c004 510 bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
876c9d3a 511 assoc_req->mode);
fcdb53db 512 if (bss == NULL) {
0795af57
JP		 513 lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
514 "cannot associate.\n", print_mac(mac, assoc_req->bssid));
876c9d3a
MT		 515 goto out;
516 }
517
e76850d6 518 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
0dc5a290 519 if (assoc_req->mode == IW_MODE_INFRA) {
10078321
HS		 520 ret = lbs_associate(priv, assoc_req);
521 lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret);
0dc5a290 522 } else if (assoc_req->mode == IW_MODE_ADHOC) {
10078321 523 lbs_join_adhoc_network(priv, assoc_req);
876c9d3a 524 }
876c9d3a
MT		 525
526out:
9012b28a 527 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 528 return ret;
529}
530
531
69f9032d 532static int assoc_helper_associate(struct lbs_private *priv,
876c9d3a
MT		 533 struct assoc_request * assoc_req)
534{
535 int ret = 0, done = 0;
536
0765af44
HS		 537 lbs_deb_enter(LBS_DEB_ASSOC);
538
876c9d3a
MT		 539 /* If we're given and 'any' BSSID, try associating based on SSID */
540
541 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
3cf20931
DW		 542 if (compare_ether_addr(bssid_any, assoc_req->bssid)
543 && compare_ether_addr(bssid_off, assoc_req->bssid)) {
876c9d3a
MT		 544 ret = assoc_helper_bssid(priv, assoc_req);
545 done = 1;
876c9d3a
MT		 546 }
547 }
548
549 if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
550 ret = assoc_helper_essid(priv, assoc_req);
876c9d3a
MT		 551 }
552
0765af44 553 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 554 return ret;
555}
556
557
69f9032d 558static int assoc_helper_mode(struct lbs_private *priv,
876c9d3a
MT		 559 struct assoc_request * assoc_req)
560{
876c9d3a
MT		 561 int ret = 0;
562
9012b28a 563 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 564
aa21c004 565 if (assoc_req->mode == priv->mode)
9012b28a 566 goto done;
876c9d3a 567
0dc5a290 568 if (assoc_req->mode == IW_MODE_INFRA) {
aa21c004 569 if (priv->psstate != PS_STATE_FULL_POWER)
10078321 570 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
aa21c004 571 priv->psmode = LBS802_11POWERMODECAM;
876c9d3a
MT		 572 }
573
aa21c004 574 priv->mode = assoc_req->mode;
10078321 575 ret = lbs_prepare_and_send_command(priv,
0aef64d7
DW		 576 CMD_802_11_SNMP_MIB,
577 0, CMD_OPTION_WAITFORRSP,
876c9d3a 578 OID_802_11_INFRASTRUCTURE_MODE,
981f187b 579 /* Shoot me now */ (void *) (size_t) assoc_req->mode);
876c9d3a 580
9012b28a
HS		 581done:
582 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 583 return ret;
584}
585
69f9032d 586static int assoc_helper_channel(struct lbs_private *priv,
ef9a264b
DW		 587 struct assoc_request * assoc_req)
588{
ef9a264b
DW		 589 int ret = 0;
590
591 lbs_deb_enter(LBS_DEB_ASSOC);
592
9f462577 593 ret = lbs_update_channel(priv);
d1a469fd 594 if (ret) {
23d36eec 595 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
d1a469fd 596 goto done;
ef9a264b
DW		 597 }
598
aa21c004 599 if (assoc_req->channel == priv->curbssparams.channel)
ef9a264b
DW		 600 goto done;
601
8642f1f0 602 if (priv->mesh_dev) {
86062134
DW		 603 /* Change mesh channel first; 21.p21 firmware won't let
604 you change channel otherwise (even though it'll return
605 an error to this */
edaea5ce
JC		 606 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
607 assoc_req->channel);
8642f1f0
DW		 608 }
609
ef9a264b 610 lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
86062134 611 priv->curbssparams.channel, assoc_req->channel);
ef9a264b 612
2dd4b262
DW		 613 ret = lbs_set_channel(priv, assoc_req->channel);
614 if (ret < 0)
23d36eec 615 lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
ef9a264b 616
2dd4b262
DW		 617 /* FIXME: shouldn't need to grab the channel _again_ after setting
618 * it since the firmware is supposed to return the new channel, but
619 * whatever... */
9f462577 620 ret = lbs_update_channel(priv);
d1a469fd 621 if (ret) {
23d36eec 622 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
d1a469fd
DW		 623 goto done;
624 }
ef9a264b 625
aa21c004 626 if (assoc_req->channel != priv->curbssparams.channel) {
88ae2915 627 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
ef9a264b 628 assoc_req->channel);
8642f1f0 629 goto restore_mesh;
ef9a264b
DW		 630 }
631
632 if ( assoc_req->secinfo.wep_enabled
633 && (assoc_req->wep_keys[0].len
634 || assoc_req->wep_keys[1].len
635 || assoc_req->wep_keys[2].len
636 || assoc_req->wep_keys[3].len)) {
637 /* Make sure WEP keys are re-sent to firmware */
638 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
639 }
640
641 /* Must restart/rejoin adhoc networks after channel change */
23d36eec 642 set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
ef9a264b 643
8642f1f0
DW		 644 restore_mesh:
645 if (priv->mesh_dev)
edaea5ce
JC		 646 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
647 priv->curbssparams.channel);
8642f1f0
DW		 648
649 done:
ef9a264b
DW		 650 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
651 return ret;
652}
653
654
69f9032d 655static int assoc_helper_wep_keys(struct lbs_private *priv,
f70dd451 656 struct assoc_request *assoc_req)
876c9d3a 657{
876c9d3a
MT		 658 int i;
659 int ret = 0;
660
9012b28a 661 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a
MT		 662
663 /* Set or remove WEP keys */
f70dd451
DW		 664 if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
665 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
666 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
667 else
668 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
876c9d3a
MT		 669
670 if (ret)
671 goto out;
672
673 /* enable/disable the MAC's WEP packet filter */
889c05bd 674 if (assoc_req->secinfo.wep_enabled)
d9e9778c 675 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
876c9d3a 676 else
d9e9778c 677 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
f70dd451 678
c97329e2 679 lbs_set_mac_control(priv);
876c9d3a 680
aa21c004 681 mutex_lock(&priv->lock);
876c9d3a 682
aa21c004 683 /* Copy WEP keys into priv wep key fields */
876c9d3a 684 for (i = 0; i < 4; i++) {
aa21c004 685 memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
f70dd451 686 sizeof(struct enc_key));
876c9d3a 687 }
aa21c004 688 priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
876c9d3a 689
aa21c004 690 mutex_unlock(&priv->lock);
876c9d3a
MT		 691
692out:
9012b28a 693 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 694 return ret;
695}
696
69f9032d 697static int assoc_helper_secinfo(struct lbs_private *priv,
876c9d3a
MT		 698 struct assoc_request * assoc_req)
699{
876c9d3a 700 int ret = 0;
4f59abf1
DW		 701 uint16_t do_wpa;
702 uint16_t rsn = 0;
876c9d3a 703
9012b28a 704 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 705
aa21c004 706 memcpy(&priv->secinfo, &assoc_req->secinfo,
10078321 707 sizeof(struct lbs_802_11_security));
876c9d3a 708
c97329e2 709 lbs_set_mac_control(priv);
876c9d3a 710
18c96c34
DW		 711 /* If RSN is already enabled, don't try to enable it again, since
712 * ENABLE_RSN resets internal state machines and will clobber the
713 * 4-way WPA handshake.
714 */
715
716 /* Get RSN enabled/disabled */
4f59abf1 717 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
18c96c34 718 if (ret) {
23d36eec 719 lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
18c96c34
DW		 720 goto out;
721 }
722
723 /* Don't re-enable RSN if it's already enabled */
4f59abf1 724 do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
18c96c34
DW		 725 if (do_wpa == rsn)
726 goto out;
727
728 /* Set RSN enabled/disabled */
4f59abf1 729 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
90a42210
DW		 730
731out:
9012b28a 732 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 733 return ret;
734}
735
736
69f9032d 737static int assoc_helper_wpa_keys(struct lbs_private *priv,
876c9d3a
MT		 738 struct assoc_request * assoc_req)
739{
740 int ret = 0;
2bcde51d 741 unsigned int flags = assoc_req->flags;
876c9d3a 742
9012b28a 743 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 744
2bcde51d
DW		 745 /* Work around older firmware bug where WPA unicast and multicast
746 * keys must be set independently. Seen in SDIO parts with firmware
747 * version 5.0.11p0.
748 */
876c9d3a 749
2bcde51d
DW		 750 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
751 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
9e1228d0 752 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
2bcde51d
DW		 753 assoc_req->flags = flags;
754 }
755
756 if (ret)
757 goto out;
758
759 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
760 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
761
9e1228d0 762 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
2bcde51d
DW		 763 assoc_req->flags = flags;
764 }
765
766out:
9012b28a 767 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 768 return ret;
769}
770
771
69f9032d 772static int assoc_helper_wpa_ie(struct lbs_private *priv,
876c9d3a
MT		 773 struct assoc_request * assoc_req)
774{
876c9d3a
MT		 775 int ret = 0;
776
9012b28a 777 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a
MT		 778
779 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
aa21c004
DW		 780 memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
781 priv->wpa_ie_len = assoc_req->wpa_ie_len;
876c9d3a 782 } else {
aa21c004
DW		 783 memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
784 priv->wpa_ie_len = 0;
876c9d3a
MT		 785 }
786
9012b28a 787 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 788 return ret;
789}
790
791
aa21c004 792static int should_deauth_infrastructure(struct lbs_private *priv,
876c9d3a
MT		 793 struct assoc_request * assoc_req)
794{
0765af44
HS		 795 int ret = 0;
796
aa21c004 797 if (priv->connect_status != LBS_CONNECTED)
876c9d3a
MT		 798 return 0;
799
52507c20 800 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 801 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
0765af44
HS		 802 lbs_deb_assoc("Deauthenticating due to new SSID\n");
803 ret = 1;
804 goto out;
876c9d3a
MT		 805 }
806
807 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
aa21c004 808 if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
0765af44
HS		 809 lbs_deb_assoc("Deauthenticating due to new security\n");
810 ret = 1;
811 goto out;
876c9d3a
MT		 812 }
813 }
814
815 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
0765af44
HS		 816 lbs_deb_assoc("Deauthenticating due to new BSSID\n");
817 ret = 1;
818 goto out;
876c9d3a
MT		 819 }
820
fff47f10 821 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
0765af44
HS		 822 lbs_deb_assoc("Deauthenticating due to channel switch\n");
823 ret = 1;
824 goto out;
fff47f10
LCCR		 825 }
826
876c9d3a
MT		 827 /* FIXME: deal with 'auto' mode somehow */
828 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
0765af44
HS		 829 if (assoc_req->mode != IW_MODE_INFRA) {
830 lbs_deb_assoc("Deauthenticating due to leaving "
831 "infra mode\n");
832 ret = 1;
833 goto out;
834 }
876c9d3a
MT		 835 }
836
0765af44
HS		 837out:
838 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
52507c20 839 return ret;
876c9d3a
MT		 840}
841
842
aa21c004 843static int should_stop_adhoc(struct lbs_private *priv,
876c9d3a
MT		 844 struct assoc_request * assoc_req)
845{
0765af44
HS		 846 lbs_deb_enter(LBS_DEB_ASSOC);
847
aa21c004 848 if (priv->connect_status != LBS_CONNECTED)
876c9d3a
MT		 849 return 0;
850
aa21c004
DW		 851 if (lbs_ssid_cmp(priv->curbssparams.ssid,
852 priv->curbssparams.ssid_len,
d8efea25 853 assoc_req->ssid, assoc_req->ssid_len) != 0)
876c9d3a
MT		 854 return 1;
855
856 /* FIXME: deal with 'auto' mode somehow */
857 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
0dc5a290 858 if (assoc_req->mode != IW_MODE_ADHOC)
876c9d3a
MT		 859 return 1;
860 }
861
ef9a264b 862 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
aa21c004 863 if (assoc_req->channel != priv->curbssparams.channel)
ef9a264b
DW		 864 return 1;
865 }
866
0765af44 867 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 868 return 0;
869}
870
871
245bf20f
HS		 872/**
873 * @brief This function finds the best SSID in the Scan List
874 *
875 * Search the scan table for the best SSID that also matches the current
876 * adapter network preference (infrastructure or adhoc)
877 *
878 * @param priv A pointer to struct lbs_private
879 *
880 * @return index in BSSID list
881 */
882static struct bss_descriptor *lbs_find_best_ssid_in_list(
883 struct lbs_private *priv, uint8_t mode)
884{
885 uint8_t bestrssi = 0;
886 struct bss_descriptor *iter_bss;
887 struct bss_descriptor *best_bss = NULL;
888
889 lbs_deb_enter(LBS_DEB_SCAN);
890
891 mutex_lock(&priv->lock);
892
893 list_for_each_entry(iter_bss, &priv->network_list, list) {
894 switch (mode) {
895 case IW_MODE_INFRA:
896 case IW_MODE_ADHOC:
897 if (!is_network_compatible(priv, iter_bss, mode))
898 break;
899 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
900 break;
901 bestrssi = SCAN_RSSI(iter_bss->rssi);
902 best_bss = iter_bss;
903 break;
904 case IW_MODE_AUTO:
905 default:
906 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
907 break;
908 bestrssi = SCAN_RSSI(iter_bss->rssi);
909 best_bss = iter_bss;
910 break;
911 }
912 }
913
914 mutex_unlock(&priv->lock);
915 lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
916 return best_bss;
917}
918
919/**
920 * @brief Find the best AP
921 *
922 * Used from association worker.
923 *
924 * @param priv A pointer to struct lbs_private structure
925 * @param pSSID A pointer to AP's ssid
926 *
927 * @return 0--success, otherwise--fail
928 */
929static int lbs_find_best_network_ssid(struct lbs_private *priv,
930 uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
931 uint8_t *out_mode)
932{
933 int ret = -1;
934 struct bss_descriptor *found;
935
936 lbs_deb_enter(LBS_DEB_SCAN);
937
938 priv->scan_ssid_len = 0;
939 lbs_scan_networks(priv, 1);
940 if (priv->surpriseremoved)
941 goto out;
942
943 found = lbs_find_best_ssid_in_list(priv, preferred_mode);
944 if (found && (found->ssid_len > 0)) {
945 memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE);
946 *out_ssid_len = found->ssid_len;
947 *out_mode = found->mode;
948 ret = 0;
949 }
950
951out:
952 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
953 return ret;
954}
955
956
10078321 957void lbs_association_worker(struct work_struct *work)
876c9d3a 958{
69f9032d
HS		 959 struct lbs_private *priv = container_of(work, struct lbs_private,
960 assoc_work.work);
876c9d3a
MT		 961 struct assoc_request * assoc_req = NULL;
962 int ret = 0;
963 int find_any_ssid = 0;
0795af57 964 DECLARE_MAC_BUF(mac);
876c9d3a 965
9012b28a 966 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 967
aa21c004
DW		 968 mutex_lock(&priv->lock);
969 assoc_req = priv->pending_assoc_req;
970 priv->pending_assoc_req = NULL;
971 priv->in_progress_assoc_req = assoc_req;
972 mutex_unlock(&priv->lock);
876c9d3a 973
9012b28a
HS		 974 if (!assoc_req)
975 goto done;
876c9d3a 976
0765af44
HS		 977 lbs_deb_assoc(
978 "Association Request:\n"
979 " flags: 0x%08lx\n"
980 " SSID: '%s'\n"
981 " chann: %d\n"
982 " band: %d\n"
983 " mode: %d\n"
984 " BSSID: %s\n"
985 " secinfo: %s%s%s\n"
986 " auth_mode: %d\n",
987 assoc_req->flags,
988 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
989 assoc_req->channel, assoc_req->band, assoc_req->mode,
990 print_mac(mac, assoc_req->bssid),
991 assoc_req->secinfo.WPAenabled ? " WPA" : "",
992 assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
993 assoc_req->secinfo.wep_enabled ? " WEP" : "",
994 assoc_req->secinfo.auth_mode);
876c9d3a
MT		 995
996 /* If 'any' SSID was specified, find an SSID to associate with */
997 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
d8efea25 998 && !assoc_req->ssid_len)
876c9d3a
MT		 999 find_any_ssid = 1;
1000
1001 /* But don't use 'any' SSID if there's a valid locked BSSID to use */
1002 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
3cf20931
DW		 1003 if (compare_ether_addr(assoc_req->bssid, bssid_any)
1004 && compare_ether_addr(assoc_req->bssid, bssid_off))
876c9d3a
MT		 1005 find_any_ssid = 0;
1006 }
1007
1008 if (find_any_ssid) {
877cb0d4 1009 u8 new_mode = assoc_req->mode;
876c9d3a 1010
10078321 1011 ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
d8efea25 1012 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
876c9d3a 1013 if (ret) {
9012b28a 1014 lbs_deb_assoc("Could not find best network\n");
876c9d3a
MT		 1015 ret = -ENETUNREACH;
1016 goto out;
1017 }
1018
1019 /* Ensure we switch to the mode of the AP */
0dc5a290 1020 if (assoc_req->mode == IW_MODE_AUTO) {
876c9d3a
MT		 1021 set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
1022 assoc_req->mode = new_mode;
1023 }
1024 }
1025
1026 /*
1027 * Check if the attributes being changing require deauthentication
1028 * from the currently associated infrastructure access point.
1029 */
aa21c004
DW		 1030 if (priv->mode == IW_MODE_INFRA) {
1031 if (should_deauth_infrastructure(priv, assoc_req)) {
10078321 1032 ret = lbs_send_deauthentication(priv);
876c9d3a 1033 if (ret) {
9012b28a 1034 lbs_deb_assoc("Deauthentication due to new "
876c9d3a
MT		 1035 "configuration request failed: %d\n",
1036 ret);
1037 }
1038 }
aa21c004
DW		 1039 } else if (priv->mode == IW_MODE_ADHOC) {
1040 if (should_stop_adhoc(priv, assoc_req)) {
10078321 1041 ret = lbs_stop_adhoc_network(priv);
876c9d3a 1042 if (ret) {
9012b28a 1043 lbs_deb_assoc("Teardown of AdHoc network due to "
876c9d3a
MT		 1044 "new configuration request failed: %d\n",
1045 ret);
1046 }
1047
1048 }
1049 }
1050
1051 /* Send the various configuration bits to the firmware */
1052 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1053 ret = assoc_helper_mode(priv, assoc_req);
0765af44 1054 if (ret)
876c9d3a 1055 goto out;
876c9d3a
MT		 1056 }
1057
ef9a264b
DW		 1058 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1059 ret = assoc_helper_channel(priv, assoc_req);
0765af44 1060 if (ret)
ef9a264b 1061 goto out;
ef9a264b
DW		 1062 }
1063
876c9d3a
MT		 1064 if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
1065 || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
1066 ret = assoc_helper_wep_keys(priv, assoc_req);
0765af44 1067 if (ret)
876c9d3a 1068 goto out;
876c9d3a
MT		 1069 }
1070
1071 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1072 ret = assoc_helper_secinfo(priv, assoc_req);
0765af44 1073 if (ret)
876c9d3a 1074 goto out;
876c9d3a
MT		 1075 }
1076
1077 if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1078 ret = assoc_helper_wpa_ie(priv, assoc_req);
0765af44 1079 if (ret)
876c9d3a 1080 goto out;
876c9d3a
MT		 1081 }
1082
1083 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
1084 || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1085 ret = assoc_helper_wpa_keys(priv, assoc_req);
0765af44 1086 if (ret)
876c9d3a 1087 goto out;
876c9d3a
MT		 1088 }
1089
1090 /* SSID/BSSID should be the _last_ config option set, because they
1091 * trigger the association attempt.
1092 */
1093 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
1094 || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1095 int success = 1;
1096
1097 ret = assoc_helper_associate(priv, assoc_req);
1098 if (ret) {
91843463 1099 lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
876c9d3a
MT		 1100 ret);
1101 success = 0;
1102 }
1103
aa21c004 1104 if (priv->connect_status != LBS_CONNECTED) {
91843463
HS		 1105 lbs_deb_assoc("ASSOC: association unsuccessful, "
1106 "not connected\n");
876c9d3a
MT		 1107 success = 0;
1108 }
1109
1110 if (success) {
52507c20 1111 lbs_deb_assoc("associated to %s\n",
aa21c004 1112 print_mac(mac, priv->curbssparams.bssid));
10078321 1113 lbs_prepare_and_send_command(priv,
0aef64d7
DW		 1114 CMD_802_11_RSSI,
1115 0, CMD_OPTION_WAITFORRSP, 0, NULL);
876c9d3a 1116 } else {
876c9d3a
MT		 1117 ret = -1;
1118 }
1119 }
1120
1121out:
1122 if (ret) {
9012b28a 1123 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
876c9d3a
MT		 1124 ret);
1125 }
e76850d6 1126
aa21c004
DW		 1127 mutex_lock(&priv->lock);
1128 priv->in_progress_assoc_req = NULL;
1129 mutex_unlock(&priv->lock);
876c9d3a 1130 kfree(assoc_req);
9012b28a
HS		 1131
1132done:
1133 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 1134}
1135
1136
1137/*
1138 * Caller MUST hold any necessary locks
1139 */
aa21c004 1140struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
876c9d3a
MT		 1141{
1142 struct assoc_request * assoc_req;
1143
0765af44 1144 lbs_deb_enter(LBS_DEB_ASSOC);
aa21c004
DW		 1145 if (!priv->pending_assoc_req) {
1146 priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
e76850d6 1147 GFP_KERNEL);
aa21c004 1148 if (!priv->pending_assoc_req) {
876c9d3a
MT		 1149 lbs_pr_info("Not enough memory to allocate association"
1150 " request!\n");
1151 return NULL;
1152 }
1153 }
1154
1155 /* Copy current configuration attributes to the association request,
1156 * but don't overwrite any that are already set.
1157 */
aa21c004 1158 assoc_req = priv->pending_assoc_req;
876c9d3a 1159 if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
aa21c004 1160 memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
d8efea25 1161 IW_ESSID_MAX_SIZE);
aa21c004 1162 assoc_req->ssid_len = priv->curbssparams.ssid_len;
876c9d3a
MT		 1163 }
1164
1165 if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
aa21c004 1166 assoc_req->channel = priv->curbssparams.channel;
876c9d3a 1167
e76850d6 1168 if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
aa21c004 1169 assoc_req->band = priv->curbssparams.band;
e76850d6 1170
876c9d3a 1171 if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
aa21c004 1172 assoc_req->mode = priv->mode;
876c9d3a
MT		 1173
1174 if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
aa21c004 1175 memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
876c9d3a
MT		 1176 ETH_ALEN);
1177 }
1178
1179 if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
1180 int i;
1181 for (i = 0; i < 4; i++) {
aa21c004 1182 memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
1443b653 1183 sizeof(struct enc_key));
876c9d3a
MT		 1184 }
1185 }
1186
1187 if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
aa21c004 1188 assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
876c9d3a
MT		 1189
1190 if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
aa21c004 1191 memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
1443b653 1192 sizeof(struct enc_key));
876c9d3a
MT		 1193 }
1194
1195 if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
aa21c004 1196 memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
1443b653 1197 sizeof(struct enc_key));
876c9d3a
MT		 1198 }
1199
1200 if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
aa21c004 1201 memcpy(&assoc_req->secinfo, &priv->secinfo,
10078321 1202 sizeof(struct lbs_802_11_security));
876c9d3a
MT		 1203 }
1204
1205 if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
aa21c004 1206 memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
876c9d3a 1207 MAX_WPA_IE_LEN);
aa21c004 1208 assoc_req->wpa_ie_len = priv->wpa_ie_len;
876c9d3a
MT		 1209 }
1210
0765af44 1211 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 1212 return assoc_req;
1213}
697900ac
HS		 1214
1215
1216/**
1217 * @brief This function finds common rates between rate1 and card rates.
1218 *
1219 * It will fill common rates in rate1 as output if found.
1220 *
1221 * NOTE: Setting the MSB of the basic rates need to be taken
1222 * care, either before or after calling this function
1223 *
1224 * @param priv A pointer to struct lbs_private structure
1225 * @param rate1 the buffer which keeps input and output
1226 * @param rate1_size the size of rate1 buffer; new size of buffer on return
1227 *
1228 * @return 0 or -1
1229 */
1230static int get_common_rates(struct lbs_private *priv,
1231 u8 *rates,
1232 u16 *rates_size)
1233{
1234 u8 *card_rates = lbs_bg_rates;
1235 size_t num_card_rates = sizeof(lbs_bg_rates);
1236 int ret = 0, i, j;
1237 u8 tmp[30];
1238 size_t tmp_size = 0;
1239
1240 /* For each rate in card_rates that exists in rate1, copy to tmp */
1241 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
1242 for (j = 0; rates[j] && (j < *rates_size); j++) {
1243 if (rates[j] == card_rates[i])
1244 tmp[tmp_size++] = card_rates[i];
1245 }
1246 }
1247
1248 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
1249 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
1250 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
1251 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
1252
1253 if (!priv->auto_rate) {
1254 for (i = 0; i < tmp_size; i++) {
1255 if (tmp[i] == priv->cur_rate)
1256 goto done;
1257 }
1258 lbs_pr_alert("Previously set fixed data rate %#x isn't "
1259 "compatible with the network.\n", priv->cur_rate);
1260 ret = -1;
1261 goto done;
1262 }
1263 ret = 0;
1264
1265done:
1266 memset(rates, 0, *rates_size);
1267 *rates_size = min_t(int, tmp_size, *rates_size);
1268 memcpy(rates, tmp, *rates_size);
1269 return ret;
1270}
1271
1272
1273/**
1274 * @brief Sets the MSB on basic rates as the firmware requires
1275 *
1276 * Scan through an array and set the MSB for basic data rates.
1277 *
1278 * @param rates buffer of data rates
1279 * @param len size of buffer
1280 */
1281static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
1282{
1283 int i;
1284
1285 for (i = 0; i < len; i++) {
1286 if (rates[i] == 0x02 || rates[i] == 0x04 ||
1287 rates[i] == 0x0b || rates[i] == 0x16)
1288 rates[i] |= 0x80;
1289 }
1290}
1291
1292/**
1293 * @brief Send Deauthentication Request
1294 *
1295 * @param priv A pointer to struct lbs_private structure
1296 * @return 0--success, -1--fail
1297 */
1298int lbs_send_deauthentication(struct lbs_private *priv)
1299{
1300 return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
1301 0, CMD_OPTION_WAITFORRSP, 0, NULL);
1302}
1303
1304/**
1305 * @brief This function prepares command of authenticate.
1306 *
1307 * @param priv A pointer to struct lbs_private structure
1308 * @param cmd A pointer to cmd_ds_command structure
1309 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
1310 *
1311 * @return 0 or -1
1312 */
1313int lbs_cmd_80211_authenticate(struct lbs_private *priv,
1314 struct cmd_ds_command *cmd,
1315 void *pdata_buf)
1316{
1317 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
1318 int ret = -1;
1319 u8 *bssid = pdata_buf;
1320 DECLARE_MAC_BUF(mac);
1321
1322 lbs_deb_enter(LBS_DEB_JOIN);
1323
1324 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
1325 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
1326 + S_DS_GEN);
1327
1328 /* translate auth mode to 802.11 defined wire value */
1329 switch (priv->secinfo.auth_mode) {
1330 case IW_AUTH_ALG_OPEN_SYSTEM:
1331 pauthenticate->authtype = 0x00;
1332 break;
1333 case IW_AUTH_ALG_SHARED_KEY:
1334 pauthenticate->authtype = 0x01;
1335 break;
1336 case IW_AUTH_ALG_LEAP:
1337 pauthenticate->authtype = 0x80;
1338 break;
1339 default:
1340 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
1341 priv->secinfo.auth_mode);
1342 goto out;
1343 }
1344
1345 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
1346
1347 lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
1348 print_mac(mac, bssid), pauthenticate->authtype);
1349 ret = 0;
1350
1351out:
1352 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1353 return ret;
1354}
1355
1356int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
1357 struct cmd_ds_command *cmd)
1358{
1359 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
1360
1361 lbs_deb_enter(LBS_DEB_JOIN);
1362
1363 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
1364 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
1365 S_DS_GEN);
1366
1367 /* set AP MAC address */
1368 memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
1369
1370 /* Reason code 3 = Station is leaving */
1371#define REASON_CODE_STA_LEAVING 3
1372 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
1373
1374 lbs_deb_leave(LBS_DEB_JOIN);
1375 return 0;
1376}
1377
1378int lbs_cmd_80211_associate(struct lbs_private *priv,
1379 struct cmd_ds_command *cmd, void *pdata_buf)
1380{
1381 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
1382 int ret = 0;
1383 struct assoc_request *assoc_req = pdata_buf;
1384 struct bss_descriptor *bss = &assoc_req->bss;
1385 u8 *pos;
1386 u16 tmpcap, tmplen;
1387 struct mrvlietypes_ssidparamset *ssid;
1388 struct mrvlietypes_phyparamset *phy;
1389 struct mrvlietypes_ssparamset *ss;
1390 struct mrvlietypes_ratesparamset *rates;
1391 struct mrvlietypes_rsnparamset *rsn;
1392
1393 lbs_deb_enter(LBS_DEB_ASSOC);
1394
1395 pos = (u8 *) passo;
1396
1397 if (!priv) {
1398 ret = -1;
1399 goto done;
1400 }
1401
1402 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1403
1404 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
1405 pos += sizeof(passo->peerstaaddr);
1406
1407 /* set the listen interval */
1408 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1409
1410 pos += sizeof(passo->capability);
1411 pos += sizeof(passo->listeninterval);
1412 pos += sizeof(passo->bcnperiod);
1413 pos += sizeof(passo->dtimperiod);
1414
1415 ssid = (struct mrvlietypes_ssidparamset *) pos;
1416 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
1417 tmplen = bss->ssid_len;
1418 ssid->header.len = cpu_to_le16(tmplen);
1419 memcpy(ssid->ssid, bss->ssid, tmplen);
1420 pos += sizeof(ssid->header) + tmplen;
1421
1422 phy = (struct mrvlietypes_phyparamset *) pos;
1423 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
1424 tmplen = sizeof(phy->fh_ds.dsparamset);
1425 phy->header.len = cpu_to_le16(tmplen);
1426 memcpy(&phy->fh_ds.dsparamset,
1427 &bss->phyparamset.dsparamset.currentchan,
1428 tmplen);
1429 pos += sizeof(phy->header) + tmplen;
1430
1431 ss = (struct mrvlietypes_ssparamset *) pos;
1432 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
1433 tmplen = sizeof(ss->cf_ibss.cfparamset);
1434 ss->header.len = cpu_to_le16(tmplen);
1435 pos += sizeof(ss->header) + tmplen;
1436
1437 rates = (struct mrvlietypes_ratesparamset *) pos;
1438 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
1439 memcpy(&rates->rates, &bss->rates, MAX_RATES);
1440 tmplen = MAX_RATES;
1441 if (get_common_rates(priv, rates->rates, &tmplen)) {
1442 ret = -1;
1443 goto done;
1444 }
1445 pos += sizeof(rates->header) + tmplen;
1446 rates->header.len = cpu_to_le16(tmplen);
1447 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
1448
1449 /* Copy the infra. association rates into Current BSS state structure */
1450 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1451 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
1452
1453 /* Set MSB on basic rates as the firmware requires, but _after_
1454 * copying to current bss rates.
1455 */
1456 lbs_set_basic_rate_flags(rates->rates, tmplen);
1457
1458 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1459 rsn = (struct mrvlietypes_rsnparamset *) pos;
1460 /* WPA_IE or WPA2_IE */
1461 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
1462 tmplen = (u16) assoc_req->wpa_ie[1];
1463 rsn->header.len = cpu_to_le16(tmplen);
1464 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
1465 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
1466 sizeof(rsn->header) + tmplen);
1467 pos += sizeof(rsn->header) + tmplen;
1468 }
1469
1470 /* update curbssparams */
1471 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
1472
1473 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1474 ret = -1;
1475 goto done;
1476 }
1477
1478 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
1479
1480 /* set the capability info */
1481 tmpcap = (bss->capability & CAPINFO_MASK);
1482 if (bss->mode == IW_MODE_INFRA)
1483 tmpcap |= WLAN_CAPABILITY_ESS;
1484 passo->capability = cpu_to_le16(tmpcap);
1485 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
1486
1487done:
1488 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1489 return ret;
1490}
1491
1492int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
1493 struct cmd_ds_command *cmd, void *pdata_buf)
1494{
1495 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
1496 int ret = 0;
1497 int cmdappendsize = 0;
1498 struct assoc_request *assoc_req = pdata_buf;
1499 u16 tmpcap = 0;
1500 size_t ratesize = 0;
1501
1502 lbs_deb_enter(LBS_DEB_JOIN);
1503
1504 if (!priv) {
1505 ret = -1;
1506 goto done;
1507 }
1508
1509 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
1510
1511 /*
1512 * Fill in the parameters for 2 data structures:
1513 * 1. cmd_ds_802_11_ad_hoc_start command
1514 * 2. priv->scantable[i]
1515 *
1516 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
1517 * probe delay, and cap info.
1518 *
1519 * Firmware will fill up beacon period, DTIM, Basic rates
1520 * and operational rates.
1521 */
1522
1523 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
1524 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
1525
1526 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
1527 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
1528 assoc_req->ssid_len);
1529
1530 /* set the BSS type */
1531 adhs->bsstype = CMD_BSS_TYPE_IBSS;
1532 priv->mode = IW_MODE_ADHOC;
1533 if (priv->beacon_period == 0)
1534 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
1535 adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
1536
1537 /* set Physical param set */
1538#define DS_PARA_IE_ID 3
1539#define DS_PARA_IE_LEN 1
1540
1541 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
1542 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
1543
1544 WARN_ON(!assoc_req->channel);
1545
1546 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
1547 assoc_req->channel);
1548
1549 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
1550
1551 /* set IBSS param set */
1552#define IBSS_PARA_IE_ID 6
1553#define IBSS_PARA_IE_LEN 2
1554
1555 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
1556 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
1557 adhs->ssparamset.ibssparamset.atimwindow = 0;
1558
1559 /* set capability info */
1560 tmpcap = WLAN_CAPABILITY_IBSS;
1561 if (assoc_req->secinfo.wep_enabled) {
1562 lbs_deb_join("ADHOC_S_CMD: WEP enabled, "
1563 "setting privacy on\n");
1564 tmpcap |= WLAN_CAPABILITY_PRIVACY;
1565 } else {
1566 lbs_deb_join("ADHOC_S_CMD: WEP disabled, "
1567 "setting privacy off\n");
1568 }
1569 adhs->capability = cpu_to_le16(tmpcap);
1570
1571 /* probedelay */
1572 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1573
1574 memset(adhs->rates, 0, sizeof(adhs->rates));
1575 ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
1576 memcpy(adhs->rates, lbs_bg_rates, ratesize);
1577
1578 /* Copy the ad-hoc creating rates into Current BSS state structure */
1579 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1580 memcpy(&priv->curbssparams.rates, &adhs->rates, ratesize);
1581
1582 /* Set MSB on basic rates as the firmware requires, but _after_
1583 * copying to current bss rates.
1584 */
1585 lbs_set_basic_rate_flags(adhs->rates, ratesize);
1586
1587 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
1588 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
1589
1590 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
1591
1592 if (lbs_create_dnld_countryinfo_11d(priv)) {
1593 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
1594 ret = -1;
1595 goto done;
1596 }
1597
1598 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
1599 S_DS_GEN + cmdappendsize);
1600
1601 ret = 0;
1602done:
1603 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1604 return ret;
1605}
1606
1607int lbs_cmd_80211_ad_hoc_stop(struct cmd_ds_command *cmd)
1608{
1609 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
1610 cmd->size = cpu_to_le16(S_DS_GEN);
1611
1612 return 0;
1613}
1614
1615int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
1616 struct cmd_ds_command *cmd, void *pdata_buf)
1617{
1618 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
1619 struct assoc_request *assoc_req = pdata_buf;
1620 struct bss_descriptor *bss = &assoc_req->bss;
1621 int cmdappendsize = 0;
1622 int ret = 0;
1623 u16 ratesize = 0;
1624 DECLARE_MAC_BUF(mac);
1625
1626 lbs_deb_enter(LBS_DEB_JOIN);
1627
1628 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
1629
1630 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
1631 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
1632
1633 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
1634 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
1635
1636 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
1637 sizeof(union ieeetypes_phyparamset));
1638
1639 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
1640 sizeof(union IEEEtypes_ssparamset));
1641
1642 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1643 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
1644 bss->capability, CAPINFO_MASK);
1645
1646 /* information on BSSID descriptor passed to FW */
1647 lbs_deb_join(
1648 "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
1649 print_mac(mac, join_cmd->bss.bssid),
1650 join_cmd->bss.ssid);
1651
1652 /* failtimeout */
1653 join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1654
1655 /* probedelay */
1656 join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1657
1658 priv->curbssparams.channel = bss->channel;
1659
1660 /* Copy Data rates from the rates recorded in scan response */
1661 memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
1662 ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
1663 memcpy(join_cmd->bss.rates, bss->rates, ratesize);
1664 if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
1665 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
1666 ret = -1;
1667 goto done;
1668 }
1669
1670 /* Copy the ad-hoc creating rates into Current BSS state structure */
1671 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1672 memcpy(&priv->curbssparams.rates, join_cmd->bss.rates, ratesize);
1673
1674 /* Set MSB on basic rates as the firmware requires, but _after_
1675 * copying to current bss rates.
1676 */
1677 lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
1678
1679 join_cmd->bss.ssparamset.ibssparamset.atimwindow =
1680 cpu_to_le16(bss->atimwindow);
1681
1682 if (assoc_req->secinfo.wep_enabled) {
1683 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
1684 tmp |= WLAN_CAPABILITY_PRIVACY;
1685 join_cmd->bss.capability = cpu_to_le16(tmp);
1686 }
1687
1688 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1689 /* wake up first */
1690 __le32 Localpsmode;
1691
1692 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1693 ret = lbs_prepare_and_send_command(priv,
1694 CMD_802_11_PS_MODE,
1695 CMD_ACT_SET,
1696 0, 0, &Localpsmode);
1697
1698 if (ret) {
1699 ret = -1;
1700 goto done;
1701 }
1702 }
1703
1704 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1705 ret = -1;
1706 goto done;
1707 }
1708
1709 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
1710 S_DS_GEN + cmdappendsize);
1711
1712done:
1713 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1714 return ret;
1715}
1716
1717int lbs_ret_80211_associate(struct lbs_private *priv,
1718 struct cmd_ds_command *resp)
1719{
1720 int ret = 0;
1721 union iwreq_data wrqu;
1722 struct ieeetypes_assocrsp *passocrsp;
1723 struct bss_descriptor *bss;
1724 u16 status_code;
1725
1726 lbs_deb_enter(LBS_DEB_ASSOC);
1727
1728 if (!priv->in_progress_assoc_req) {
1729 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
1730 ret = -1;
1731 goto done;
1732 }
1733 bss = &priv->in_progress_assoc_req->bss;
1734
1735 passocrsp = (struct ieeetypes_assocrsp *) &resp->params;
1736
1737 /*
1738 * Older FW versions map the IEEE 802.11 Status Code in the association
1739 * response to the following values returned in passocrsp->statuscode:
1740 *
1741 * IEEE Status Code Marvell Status Code
1742 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1743 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1744 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1745 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1746 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1747 * others -> 0x0003 ASSOC_RESULT_REFUSED
1748 *
1749 * Other response codes:
1750 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1751 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1752 * association response from the AP)
1753 */
1754
1755 status_code = le16_to_cpu(passocrsp->statuscode);
1756 switch (status_code) {
1757 case 0x00:
1758 break;
1759 case 0x01:
1760 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
1761 break;
1762 case 0x02:
1763 lbs_deb_assoc("ASSOC_RESP: internal timer "
1764 "expired while waiting for the AP\n");
1765 break;
1766 case 0x03:
1767 lbs_deb_assoc("ASSOC_RESP: association "
1768 "refused by AP\n");
1769 break;
1770 case 0x04:
1771 lbs_deb_assoc("ASSOC_RESP: authentication "
1772 "refused by AP\n");
1773 break;
1774 default:
1775 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
1776 " unknown\n", status_code);
1777 break;
1778 }
1779
1780 if (status_code) {
1781 lbs_mac_event_disconnected(priv);
1782 ret = -1;
1783 goto done;
1784 }
1785
1786 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
1787 le16_to_cpu(resp->size) - S_DS_GEN);
1788
1789 /* Send a Media Connected event, according to the Spec */
1790 priv->connect_status = LBS_CONNECTED;
1791
1792 /* Update current SSID and BSSID */
1793 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1794 priv->curbssparams.ssid_len = bss->ssid_len;
1795 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1796
1797 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
1798 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
1799
1800 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
1801 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
1802 priv->nextSNRNF = 0;
1803 priv->numSNRNF = 0;
1804
1805 netif_carrier_on(priv->dev);
1806 if (!priv->tx_pending_len)
1807 netif_wake_queue(priv->dev);
1808
1809 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1810 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1811 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1812
1813done:
1814 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1815 return ret;
1816}
1817
1818int lbs_ret_80211_disassociate(struct lbs_private *priv)
1819{
1820 lbs_deb_enter(LBS_DEB_JOIN);
1821
1822 lbs_mac_event_disconnected(priv);
1823
1824 lbs_deb_leave(LBS_DEB_JOIN);
1825 return 0;
1826}
1827
1828int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
1829 struct cmd_ds_command *resp)
1830{
1831 int ret = 0;
1832 u16 command = le16_to_cpu(resp->command);
1833 u16 result = le16_to_cpu(resp->result);
1834 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
1835 union iwreq_data wrqu;
1836 struct bss_descriptor *bss;
1837 DECLARE_MAC_BUF(mac);
1838
1839 lbs_deb_enter(LBS_DEB_JOIN);
1840
1841 padhocresult = &resp->params.result;
1842
1843 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
1844 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
1845 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
1846
1847 if (!priv->in_progress_assoc_req) {
1848 lbs_deb_join("ADHOC_RESP: no in-progress association "
1849 "request\n");
1850 ret = -1;
1851 goto done;
1852 }
1853 bss = &priv->in_progress_assoc_req->bss;
1854
1855 /*
1856 * Join result code 0 --> SUCCESS
1857 */
1858 if (result) {
1859 lbs_deb_join("ADHOC_RESP: failed\n");
1860 if (priv->connect_status == LBS_CONNECTED)
1861 lbs_mac_event_disconnected(priv);
1862 ret = -1;
1863 goto done;
1864 }
1865
1866 /*
1867 * Now the join cmd should be successful
1868 * If BSSID has changed use SSID to compare instead of BSSID
1869 */
1870 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
1871 escape_essid(bss->ssid, bss->ssid_len));
1872
1873 /* Send a Media Connected event, according to the Spec */
1874 priv->connect_status = LBS_CONNECTED;
1875
1876 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
1877 /* Update the created network descriptor with the new BSSID */
1878 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
1879 }
1880
1881 /* Set the BSSID from the joined/started descriptor */
1882 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1883
1884 /* Set the new SSID to current SSID */
1885 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1886 priv->curbssparams.ssid_len = bss->ssid_len;
1887
1888 netif_carrier_on(priv->dev);
1889 if (!priv->tx_pending_len)
1890 netif_wake_queue(priv->dev);
1891
1892 memset(&wrqu, 0, sizeof(wrqu));
1893 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1894 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1895 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1896
1897 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
1898 lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
1899 lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
1900 print_mac(mac, padhocresult->bssid));
1901
1902done:
1903 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1904 return ret;
1905}
1906
1907int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv)
1908{
1909 lbs_deb_enter(LBS_DEB_JOIN);
1910
1911 lbs_mac_event_disconnected(priv);
1912
1913 lbs_deb_leave(LBS_DEB_JOIN);
1914 return 0;
1915}
kernel source for telekom puls (alcatel/mediatek)