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mac80211: convert to %pM away from print_mac
[deliverable/linux.git] / drivers / net / wireless / libertas / assoc.c
1 /* Copyright (C) 2006, Red Hat, Inc. */
2
3 #include <linux/etherdevice.h>
4
5 #include "assoc.h"
6 #include "decl.h"
7 #include "host.h"
8 #include "scan.h"
9 #include "cmd.h"
10
11 static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp);
12
13 static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
14 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
15 static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
16 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
17
18 /* The firmware needs certain bits masked out of the beacon-derviced capability
19 * field when associating/joining to BSSs.
20 */
21 #define CAPINFO_MASK (~(0xda00))
22
23
24 /**
25 * @brief This function finds common rates between rates and card rates.
26 *
27 * It will fill common rates in rates as output if found.
28 *
29 * NOTE: Setting the MSB of the basic rates need to be taken
30 * care, either before or after calling this function
31 *
32 * @param priv A pointer to struct lbs_private structure
33 * @param rates the buffer which keeps input and output
34 * @param rates_size the size of rate1 buffer; new size of buffer on return
35 *
36 * @return 0 on success, or -1 on error
37 */
38 static int get_common_rates(struct lbs_private *priv,
39 u8 *rates,
40 u16 *rates_size)
41 {
42 u8 *card_rates = lbs_bg_rates;
43 size_t num_card_rates = sizeof(lbs_bg_rates);
44 int ret = 0, i, j;
45 u8 tmp[30];
46 size_t tmp_size = 0;
47
48 /* For each rate in card_rates that exists in rate1, copy to tmp */
49 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
50 for (j = 0; rates[j] && (j < *rates_size); j++) {
51 if (rates[j] == card_rates[i])
52 tmp[tmp_size++] = card_rates[i];
53 }
54 }
55
56 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
57 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
58 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
59 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
60
61 if (!priv->enablehwauto) {
62 for (i = 0; i < tmp_size; i++) {
63 if (tmp[i] == priv->cur_rate)
64 goto done;
65 }
66 lbs_pr_alert("Previously set fixed data rate %#x isn't "
67 "compatible with the network.\n", priv->cur_rate);
68 ret = -1;
69 goto done;
70 }
71 ret = 0;
72
73 done:
74 memset(rates, 0, *rates_size);
75 *rates_size = min_t(int, tmp_size, *rates_size);
76 memcpy(rates, tmp, *rates_size);
77 return ret;
78 }
79
80
81 /**
82 * @brief Sets the MSB on basic rates as the firmware requires
83 *
84 * Scan through an array and set the MSB for basic data rates.
85 *
86 * @param rates buffer of data rates
87 * @param len size of buffer
88 */
89 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
90 {
91 int i;
92
93 for (i = 0; i < len; i++) {
94 if (rates[i] == 0x02 || rates[i] == 0x04 ||
95 rates[i] == 0x0b || rates[i] == 0x16)
96 rates[i] |= 0x80;
97 }
98 }
99
100
101 /**
102 * @brief Associate to a specific BSS discovered in a scan
103 *
104 * @param priv A pointer to struct lbs_private structure
105 * @param assoc_req The association request describing the BSS to associate with
106 *
107 * @return 0-success, otherwise fail
108 */
109 static int lbs_associate(struct lbs_private *priv,
110 struct assoc_request *assoc_req)
111 {
112 int ret;
113 u8 preamble = RADIO_PREAMBLE_LONG;
114
115 lbs_deb_enter(LBS_DEB_ASSOC);
116
117 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
118 0, CMD_OPTION_WAITFORRSP,
119 0, assoc_req->bss.bssid);
120 if (ret)
121 goto out;
122
123 /* Use short preamble only when both the BSS and firmware support it */
124 if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
125 (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
126 preamble = RADIO_PREAMBLE_SHORT;
127
128 ret = lbs_set_radio(priv, preamble, 1);
129 if (ret)
130 goto out;
131
132 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
133 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
134
135 out:
136 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
137 return ret;
138 }
139
140 /**
141 * @brief Join an adhoc network found in a previous scan
142 *
143 * @param priv A pointer to struct lbs_private structure
144 * @param assoc_req The association request describing the BSS to join
145 *
146 * @return 0 on success, error on failure
147 */
148 static int lbs_adhoc_join(struct lbs_private *priv,
149 struct assoc_request *assoc_req)
150 {
151 struct cmd_ds_802_11_ad_hoc_join cmd;
152 struct bss_descriptor *bss = &assoc_req->bss;
153 u8 preamble = RADIO_PREAMBLE_LONG;
154 DECLARE_MAC_BUF(mac);
155 u16 ratesize = 0;
156 int ret = 0;
157
158 lbs_deb_enter(LBS_DEB_ASSOC);
159
160 lbs_deb_join("current SSID '%s', ssid length %u\n",
161 escape_essid(priv->curbssparams.ssid,
162 priv->curbssparams.ssid_len),
163 priv->curbssparams.ssid_len);
164 lbs_deb_join("requested ssid '%s', ssid length %u\n",
165 escape_essid(bss->ssid, bss->ssid_len),
166 bss->ssid_len);
167
168 /* check if the requested SSID is already joined */
169 if (priv->curbssparams.ssid_len &&
170 !lbs_ssid_cmp(priv->curbssparams.ssid,
171 priv->curbssparams.ssid_len,
172 bss->ssid, bss->ssid_len) &&
173 (priv->mode == IW_MODE_ADHOC) &&
174 (priv->connect_status == LBS_CONNECTED)) {
175 union iwreq_data wrqu;
176
177 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
178 "current, not attempting to re-join");
179
180 /* Send the re-association event though, because the association
181 * request really was successful, even if just a null-op.
182 */
183 memset(&wrqu, 0, sizeof(wrqu));
184 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
185 ETH_ALEN);
186 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
187 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
188 goto out;
189 }
190
191 /* Use short preamble only when both the BSS and firmware support it */
192 if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
193 (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
194 lbs_deb_join("AdhocJoin: Short preamble\n");
195 preamble = RADIO_PREAMBLE_SHORT;
196 }
197
198 ret = lbs_set_radio(priv, preamble, 1);
199 if (ret)
200 goto out;
201
202 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
203 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
204
205 priv->adhoccreate = 0;
206 priv->curbssparams.channel = bss->channel;
207
208 /* Build the join command */
209 memset(&cmd, 0, sizeof(cmd));
210 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
211
212 cmd.bss.type = CMD_BSS_TYPE_IBSS;
213 cmd.bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
214
215 memcpy(&cmd.bss.bssid, &bss->bssid, ETH_ALEN);
216 memcpy(&cmd.bss.ssid, &bss->ssid, bss->ssid_len);
217
218 memcpy(&cmd.bss.phyparamset, &bss->phyparamset,
219 sizeof(union ieeetypes_phyparamset));
220
221 memcpy(&cmd.bss.ssparamset, &bss->ssparamset,
222 sizeof(union IEEEtypes_ssparamset));
223
224 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
225 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
226 bss->capability, CAPINFO_MASK);
227
228 /* information on BSSID descriptor passed to FW */
229 lbs_deb_join("ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
230 print_mac(mac, cmd.bss.bssid), cmd.bss.ssid);
231
232 /* Only v8 and below support setting these */
233 if (priv->fwrelease < 0x09000000) {
234 /* failtimeout */
235 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
236 /* probedelay */
237 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
238 }
239
240 /* Copy Data rates from the rates recorded in scan response */
241 memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
242 ratesize = min_t(u16, sizeof(cmd.bss.rates), MAX_RATES);
243 memcpy(cmd.bss.rates, bss->rates, ratesize);
244 if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
245 lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
246 ret = -1;
247 goto out;
248 }
249
250 /* Copy the ad-hoc creation rates into Current BSS state structure */
251 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
252 memcpy(&priv->curbssparams.rates, cmd.bss.rates, ratesize);
253
254 /* Set MSB on basic rates as the firmware requires, but _after_
255 * copying to current bss rates.
256 */
257 lbs_set_basic_rate_flags(cmd.bss.rates, ratesize);
258
259 cmd.bss.ssparamset.ibssparamset.atimwindow = cpu_to_le16(bss->atimwindow);
260
261 if (assoc_req->secinfo.wep_enabled) {
262 u16 tmp = le16_to_cpu(cmd.bss.capability);
263 tmp |= WLAN_CAPABILITY_PRIVACY;
264 cmd.bss.capability = cpu_to_le16(tmp);
265 }
266
267 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
268 __le32 local_ps_mode = cpu_to_le32(LBS802_11POWERMODECAM);
269
270 /* wake up first */
271 ret = lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
272 CMD_ACT_SET, 0, 0,
273 &local_ps_mode);
274 if (ret) {
275 ret = -1;
276 goto out;
277 }
278 }
279
280 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
281 ret = -1;
282 goto out;
283 }
284
285 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
286 if (ret == 0)
287 ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd);
288
289 out:
290 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
291 return ret;
292 }
293
294 /**
295 * @brief Start an Adhoc Network
296 *
297 * @param priv A pointer to struct lbs_private structure
298 * @param assoc_req The association request describing the BSS to start
299 *
300 * @return 0 on success, error on failure
301 */
302 static int lbs_adhoc_start(struct lbs_private *priv,
303 struct assoc_request *assoc_req)
304 {
305 struct cmd_ds_802_11_ad_hoc_start cmd;
306 u8 preamble = RADIO_PREAMBLE_LONG;
307 size_t ratesize = 0;
308 u16 tmpcap = 0;
309 int ret = 0;
310
311 lbs_deb_enter(LBS_DEB_ASSOC);
312
313 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
314 lbs_deb_join("ADHOC_START: Will use short preamble\n");
315 preamble = RADIO_PREAMBLE_SHORT;
316 }
317
318 ret = lbs_set_radio(priv, preamble, 1);
319 if (ret)
320 goto out;
321
322 /* Build the start command */
323 memset(&cmd, 0, sizeof(cmd));
324 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
325
326 memcpy(cmd.ssid, assoc_req->ssid, assoc_req->ssid_len);
327
328 lbs_deb_join("ADHOC_START: SSID '%s', ssid length %u\n",
329 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
330 assoc_req->ssid_len);
331
332 cmd.bsstype = CMD_BSS_TYPE_IBSS;
333
334 if (priv->beacon_period == 0)
335 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
336 cmd.beaconperiod = cpu_to_le16(priv->beacon_period);
337
338 WARN_ON(!assoc_req->channel);
339
340 /* set Physical parameter set */
341 cmd.phyparamset.dsparamset.elementid = MFIE_TYPE_DS_SET;
342 cmd.phyparamset.dsparamset.len = 1;
343 cmd.phyparamset.dsparamset.currentchan = assoc_req->channel;
344
345 /* set IBSS parameter set */
346 cmd.ssparamset.ibssparamset.elementid = MFIE_TYPE_IBSS_SET;
347 cmd.ssparamset.ibssparamset.len = 2;
348 cmd.ssparamset.ibssparamset.atimwindow = 0;
349
350 /* set capability info */
351 tmpcap = WLAN_CAPABILITY_IBSS;
352 if (assoc_req->secinfo.wep_enabled) {
353 lbs_deb_join("ADHOC_START: WEP enabled, setting privacy on\n");
354 tmpcap |= WLAN_CAPABILITY_PRIVACY;
355 } else
356 lbs_deb_join("ADHOC_START: WEP disabled, setting privacy off\n");
357
358 cmd.capability = cpu_to_le16(tmpcap);
359
360 /* Only v8 and below support setting probe delay */
361 if (priv->fwrelease < 0x09000000)
362 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
363
364 ratesize = min(sizeof(cmd.rates), sizeof(lbs_bg_rates));
365 memcpy(cmd.rates, lbs_bg_rates, ratesize);
366
367 /* Copy the ad-hoc creating rates into Current BSS state structure */
368 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
369 memcpy(&priv->curbssparams.rates, &cmd.rates, ratesize);
370
371 /* Set MSB on basic rates as the firmware requires, but _after_
372 * copying to current bss rates.
373 */
374 lbs_set_basic_rate_flags(cmd.rates, ratesize);
375
376 lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n",
377 cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]);
378
379 if (lbs_create_dnld_countryinfo_11d(priv)) {
380 lbs_deb_join("ADHOC_START: dnld_countryinfo_11d failed\n");
381 ret = -1;
382 goto out;
383 }
384
385 lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n",
386 assoc_req->channel, assoc_req->band);
387
388 priv->adhoccreate = 1;
389 priv->mode = IW_MODE_ADHOC;
390
391 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
392 if (ret == 0)
393 ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd);
394
395 out:
396 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
397 return ret;
398 }
399
400 /**
401 * @brief Stop and Ad-Hoc network and exit Ad-Hoc mode
402 *
403 * @param priv A pointer to struct lbs_private structure
404 * @return 0 on success, or an error
405 */
406 int lbs_adhoc_stop(struct lbs_private *priv)
407 {
408 struct cmd_ds_802_11_ad_hoc_stop cmd;
409 int ret;
410
411 lbs_deb_enter(LBS_DEB_JOIN);
412
413 memset(&cmd, 0, sizeof (cmd));
414 cmd.hdr.size = cpu_to_le16 (sizeof (cmd));
415
416 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
417
418 /* Clean up everything even if there was an error */
419 lbs_mac_event_disconnected(priv);
420
421 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
422 return ret;
423 }
424
425 static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
426 struct bss_descriptor *match_bss)
427 {
428 if (!secinfo->wep_enabled && !secinfo->WPAenabled
429 && !secinfo->WPA2enabled
430 && match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC
431 && match_bss->rsn_ie[0] != MFIE_TYPE_RSN
432 && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
433 return 1;
434 else
435 return 0;
436 }
437
438 static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
439 struct bss_descriptor *match_bss)
440 {
441 if (secinfo->wep_enabled && !secinfo->WPAenabled
442 && !secinfo->WPA2enabled
443 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
444 return 1;
445 else
446 return 0;
447 }
448
449 static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
450 struct bss_descriptor *match_bss)
451 {
452 if (!secinfo->wep_enabled && secinfo->WPAenabled
453 && (match_bss->wpa_ie[0] == MFIE_TYPE_GENERIC)
454 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
455 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
456 )
457 return 1;
458 else
459 return 0;
460 }
461
462 static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
463 struct bss_descriptor *match_bss)
464 {
465 if (!secinfo->wep_enabled && secinfo->WPA2enabled &&
466 (match_bss->rsn_ie[0] == MFIE_TYPE_RSN)
467 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
468 (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
469 )
470 return 1;
471 else
472 return 0;
473 }
474
475 static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
476 struct bss_descriptor *match_bss)
477 {
478 if (!secinfo->wep_enabled && !secinfo->WPAenabled
479 && !secinfo->WPA2enabled
480 && (match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC)
481 && (match_bss->rsn_ie[0] != MFIE_TYPE_RSN)
482 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
483 return 1;
484 else
485 return 0;
486 }
487
488 /**
489 * @brief Check if a scanned network compatible with the driver settings
490 *
491 * WEP WPA WPA2 ad-hoc encrypt Network
492 * enabled enabled enabled AES mode privacy WPA WPA2 Compatible
493 * 0 0 0 0 NONE 0 0 0 yes No security
494 * 1 0 0 0 NONE 1 0 0 yes Static WEP
495 * 0 1 0 0 x 1x 1 x yes WPA
496 * 0 0 1 0 x 1x x 1 yes WPA2
497 * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
498 * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
499 *
500 *
501 * @param priv A pointer to struct lbs_private
502 * @param index Index in scantable to check against current driver settings
503 * @param mode Network mode: Infrastructure or IBSS
504 *
505 * @return Index in scantable, or error code if negative
506 */
507 static int is_network_compatible(struct lbs_private *priv,
508 struct bss_descriptor *bss, uint8_t mode)
509 {
510 int matched = 0;
511
512 lbs_deb_enter(LBS_DEB_SCAN);
513
514 if (bss->mode != mode)
515 goto done;
516
517 matched = match_bss_no_security(&priv->secinfo, bss);
518 if (matched)
519 goto done;
520 matched = match_bss_static_wep(&priv->secinfo, bss);
521 if (matched)
522 goto done;
523 matched = match_bss_wpa(&priv->secinfo, bss);
524 if (matched) {
525 lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x "
526 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
527 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
528 priv->secinfo.wep_enabled ? "e" : "d",
529 priv->secinfo.WPAenabled ? "e" : "d",
530 priv->secinfo.WPA2enabled ? "e" : "d",
531 (bss->capability & WLAN_CAPABILITY_PRIVACY));
532 goto done;
533 }
534 matched = match_bss_wpa2(&priv->secinfo, bss);
535 if (matched) {
536 lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x "
537 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
538 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
539 priv->secinfo.wep_enabled ? "e" : "d",
540 priv->secinfo.WPAenabled ? "e" : "d",
541 priv->secinfo.WPA2enabled ? "e" : "d",
542 (bss->capability & WLAN_CAPABILITY_PRIVACY));
543 goto done;
544 }
545 matched = match_bss_dynamic_wep(&priv->secinfo, bss);
546 if (matched) {
547 lbs_deb_scan("is_network_compatible() dynamic WEP: "
548 "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n",
549 bss->wpa_ie[0], bss->rsn_ie[0],
550 (bss->capability & WLAN_CAPABILITY_PRIVACY));
551 goto done;
552 }
553
554 /* bss security settings don't match those configured on card */
555 lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x "
556 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n",
557 bss->wpa_ie[0], bss->rsn_ie[0],
558 priv->secinfo.wep_enabled ? "e" : "d",
559 priv->secinfo.WPAenabled ? "e" : "d",
560 priv->secinfo.WPA2enabled ? "e" : "d",
561 (bss->capability & WLAN_CAPABILITY_PRIVACY));
562
563 done:
564 lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
565 return matched;
566 }
567
568 /**
569 * @brief This function finds a specific compatible BSSID in the scan list
570 *
571 * Used in association code
572 *
573 * @param priv A pointer to struct lbs_private
574 * @param bssid BSSID to find in the scan list
575 * @param mode Network mode: Infrastructure or IBSS
576 *
577 * @return index in BSSID list, or error return code (< 0)
578 */
579 static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
580 uint8_t *bssid, uint8_t mode)
581 {
582 struct bss_descriptor *iter_bss;
583 struct bss_descriptor *found_bss = NULL;
584
585 lbs_deb_enter(LBS_DEB_SCAN);
586
587 if (!bssid)
588 goto out;
589
590 lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN);
591
592 /* Look through the scan table for a compatible match. The loop will
593 * continue past a matched bssid that is not compatible in case there
594 * is an AP with multiple SSIDs assigned to the same BSSID
595 */
596 mutex_lock(&priv->lock);
597 list_for_each_entry(iter_bss, &priv->network_list, list) {
598 if (compare_ether_addr(iter_bss->bssid, bssid))
599 continue; /* bssid doesn't match */
600 switch (mode) {
601 case IW_MODE_INFRA:
602 case IW_MODE_ADHOC:
603 if (!is_network_compatible(priv, iter_bss, mode))
604 break;
605 found_bss = iter_bss;
606 break;
607 default:
608 found_bss = iter_bss;
609 break;
610 }
611 }
612 mutex_unlock(&priv->lock);
613
614 out:
615 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
616 return found_bss;
617 }
618
619 /**
620 * @brief This function finds ssid in ssid list.
621 *
622 * Used in association code
623 *
624 * @param priv A pointer to struct lbs_private
625 * @param ssid SSID to find in the list
626 * @param bssid BSSID to qualify the SSID selection (if provided)
627 * @param mode Network mode: Infrastructure or IBSS
628 *
629 * @return index in BSSID list
630 */
631 static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
632 uint8_t *ssid, uint8_t ssid_len,
633 uint8_t *bssid, uint8_t mode,
634 int channel)
635 {
636 u32 bestrssi = 0;
637 struct bss_descriptor *iter_bss = NULL;
638 struct bss_descriptor *found_bss = NULL;
639 struct bss_descriptor *tmp_oldest = NULL;
640
641 lbs_deb_enter(LBS_DEB_SCAN);
642
643 mutex_lock(&priv->lock);
644
645 list_for_each_entry(iter_bss, &priv->network_list, list) {
646 if (!tmp_oldest ||
647 (iter_bss->last_scanned < tmp_oldest->last_scanned))
648 tmp_oldest = iter_bss;
649
650 if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
651 ssid, ssid_len) != 0)
652 continue; /* ssid doesn't match */
653 if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
654 continue; /* bssid doesn't match */
655 if ((channel > 0) && (iter_bss->channel != channel))
656 continue; /* channel doesn't match */
657
658 switch (mode) {
659 case IW_MODE_INFRA:
660 case IW_MODE_ADHOC:
661 if (!is_network_compatible(priv, iter_bss, mode))
662 break;
663
664 if (bssid) {
665 /* Found requested BSSID */
666 found_bss = iter_bss;
667 goto out;
668 }
669
670 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
671 bestrssi = SCAN_RSSI(iter_bss->rssi);
672 found_bss = iter_bss;
673 }
674 break;
675 case IW_MODE_AUTO:
676 default:
677 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
678 bestrssi = SCAN_RSSI(iter_bss->rssi);
679 found_bss = iter_bss;
680 }
681 break;
682 }
683 }
684
685 out:
686 mutex_unlock(&priv->lock);
687 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
688 return found_bss;
689 }
690
691 static int assoc_helper_essid(struct lbs_private *priv,
692 struct assoc_request * assoc_req)
693 {
694 int ret = 0;
695 struct bss_descriptor * bss;
696 int channel = -1;
697
698 lbs_deb_enter(LBS_DEB_ASSOC);
699
700 /* FIXME: take channel into account when picking SSIDs if a channel
701 * is set.
702 */
703
704 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
705 channel = assoc_req->channel;
706
707 lbs_deb_assoc("SSID '%s' requested\n",
708 escape_essid(assoc_req->ssid, assoc_req->ssid_len));
709 if (assoc_req->mode == IW_MODE_INFRA) {
710 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
711 assoc_req->ssid_len);
712
713 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
714 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
715 if (bss != NULL) {
716 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
717 ret = lbs_associate(priv, assoc_req);
718 } else {
719 lbs_deb_assoc("SSID not found; cannot associate\n");
720 }
721 } else if (assoc_req->mode == IW_MODE_ADHOC) {
722 /* Scan for the network, do not save previous results. Stale
723 * scan data will cause us to join a non-existant adhoc network
724 */
725 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
726 assoc_req->ssid_len);
727
728 /* Search for the requested SSID in the scan table */
729 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
730 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
731 if (bss != NULL) {
732 lbs_deb_assoc("SSID found, will join\n");
733 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
734 lbs_adhoc_join(priv, assoc_req);
735 } else {
736 /* else send START command */
737 lbs_deb_assoc("SSID not found, creating adhoc network\n");
738 memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
739 IW_ESSID_MAX_SIZE);
740 assoc_req->bss.ssid_len = assoc_req->ssid_len;
741 lbs_adhoc_start(priv, assoc_req);
742 }
743 }
744
745 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
746 return ret;
747 }
748
749
750 static int assoc_helper_bssid(struct lbs_private *priv,
751 struct assoc_request * assoc_req)
752 {
753 int ret = 0;
754 struct bss_descriptor * bss;
755 DECLARE_MAC_BUF(mac);
756
757 lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
758 print_mac(mac, assoc_req->bssid));
759
760 /* Search for index position in list for requested MAC */
761 bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
762 assoc_req->mode);
763 if (bss == NULL) {
764 lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
765 "cannot associate.\n", print_mac(mac, assoc_req->bssid));
766 goto out;
767 }
768
769 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
770 if (assoc_req->mode == IW_MODE_INFRA) {
771 ret = lbs_associate(priv, assoc_req);
772 lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret);
773 } else if (assoc_req->mode == IW_MODE_ADHOC) {
774 lbs_adhoc_join(priv, assoc_req);
775 }
776
777 out:
778 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
779 return ret;
780 }
781
782
783 static int assoc_helper_associate(struct lbs_private *priv,
784 struct assoc_request * assoc_req)
785 {
786 int ret = 0, done = 0;
787
788 lbs_deb_enter(LBS_DEB_ASSOC);
789
790 /* If we're given and 'any' BSSID, try associating based on SSID */
791
792 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
793 if (compare_ether_addr(bssid_any, assoc_req->bssid)
794 && compare_ether_addr(bssid_off, assoc_req->bssid)) {
795 ret = assoc_helper_bssid(priv, assoc_req);
796 done = 1;
797 }
798 }
799
800 if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
801 ret = assoc_helper_essid(priv, assoc_req);
802 }
803
804 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
805 return ret;
806 }
807
808
809 static int assoc_helper_mode(struct lbs_private *priv,
810 struct assoc_request * assoc_req)
811 {
812 int ret = 0;
813
814 lbs_deb_enter(LBS_DEB_ASSOC);
815
816 if (assoc_req->mode == priv->mode)
817 goto done;
818
819 if (assoc_req->mode == IW_MODE_INFRA) {
820 if (priv->psstate != PS_STATE_FULL_POWER)
821 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
822 priv->psmode = LBS802_11POWERMODECAM;
823 }
824
825 priv->mode = assoc_req->mode;
826 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, assoc_req->mode);
827
828 done:
829 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
830 return ret;
831 }
832
833 static int assoc_helper_channel(struct lbs_private *priv,
834 struct assoc_request * assoc_req)
835 {
836 int ret = 0;
837
838 lbs_deb_enter(LBS_DEB_ASSOC);
839
840 ret = lbs_update_channel(priv);
841 if (ret) {
842 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
843 goto done;
844 }
845
846 if (assoc_req->channel == priv->curbssparams.channel)
847 goto done;
848
849 if (priv->mesh_dev) {
850 /* Change mesh channel first; 21.p21 firmware won't let
851 you change channel otherwise (even though it'll return
852 an error to this */
853 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
854 assoc_req->channel);
855 }
856
857 lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
858 priv->curbssparams.channel, assoc_req->channel);
859
860 ret = lbs_set_channel(priv, assoc_req->channel);
861 if (ret < 0)
862 lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
863
864 /* FIXME: shouldn't need to grab the channel _again_ after setting
865 * it since the firmware is supposed to return the new channel, but
866 * whatever... */
867 ret = lbs_update_channel(priv);
868 if (ret) {
869 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
870 goto done;
871 }
872
873 if (assoc_req->channel != priv->curbssparams.channel) {
874 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
875 assoc_req->channel);
876 goto restore_mesh;
877 }
878
879 if ( assoc_req->secinfo.wep_enabled
880 && (assoc_req->wep_keys[0].len
881 || assoc_req->wep_keys[1].len
882 || assoc_req->wep_keys[2].len
883 || assoc_req->wep_keys[3].len)) {
884 /* Make sure WEP keys are re-sent to firmware */
885 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
886 }
887
888 /* Must restart/rejoin adhoc networks after channel change */
889 set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
890
891 restore_mesh:
892 if (priv->mesh_dev)
893 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
894 priv->curbssparams.channel);
895
896 done:
897 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
898 return ret;
899 }
900
901
902 static int assoc_helper_wep_keys(struct lbs_private *priv,
903 struct assoc_request *assoc_req)
904 {
905 int i;
906 int ret = 0;
907
908 lbs_deb_enter(LBS_DEB_ASSOC);
909
910 /* Set or remove WEP keys */
911 if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
912 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
913 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
914 else
915 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
916
917 if (ret)
918 goto out;
919
920 /* enable/disable the MAC's WEP packet filter */
921 if (assoc_req->secinfo.wep_enabled)
922 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
923 else
924 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
925
926 lbs_set_mac_control(priv);
927
928 mutex_lock(&priv->lock);
929
930 /* Copy WEP keys into priv wep key fields */
931 for (i = 0; i < 4; i++) {
932 memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
933 sizeof(struct enc_key));
934 }
935 priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
936
937 mutex_unlock(&priv->lock);
938
939 out:
940 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
941 return ret;
942 }
943
944 static int assoc_helper_secinfo(struct lbs_private *priv,
945 struct assoc_request * assoc_req)
946 {
947 int ret = 0;
948 uint16_t do_wpa;
949 uint16_t rsn = 0;
950
951 lbs_deb_enter(LBS_DEB_ASSOC);
952
953 memcpy(&priv->secinfo, &assoc_req->secinfo,
954 sizeof(struct lbs_802_11_security));
955
956 lbs_set_mac_control(priv);
957
958 /* If RSN is already enabled, don't try to enable it again, since
959 * ENABLE_RSN resets internal state machines and will clobber the
960 * 4-way WPA handshake.
961 */
962
963 /* Get RSN enabled/disabled */
964 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
965 if (ret) {
966 lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
967 goto out;
968 }
969
970 /* Don't re-enable RSN if it's already enabled */
971 do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
972 if (do_wpa == rsn)
973 goto out;
974
975 /* Set RSN enabled/disabled */
976 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
977
978 out:
979 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
980 return ret;
981 }
982
983
984 static int assoc_helper_wpa_keys(struct lbs_private *priv,
985 struct assoc_request * assoc_req)
986 {
987 int ret = 0;
988 unsigned int flags = assoc_req->flags;
989
990 lbs_deb_enter(LBS_DEB_ASSOC);
991
992 /* Work around older firmware bug where WPA unicast and multicast
993 * keys must be set independently. Seen in SDIO parts with firmware
994 * version 5.0.11p0.
995 */
996
997 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
998 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
999 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
1000 assoc_req->flags = flags;
1001 }
1002
1003 if (ret)
1004 goto out;
1005
1006 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
1007 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
1008
1009 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
1010 assoc_req->flags = flags;
1011 }
1012
1013 out:
1014 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1015 return ret;
1016 }
1017
1018
1019 static int assoc_helper_wpa_ie(struct lbs_private *priv,
1020 struct assoc_request * assoc_req)
1021 {
1022 int ret = 0;
1023
1024 lbs_deb_enter(LBS_DEB_ASSOC);
1025
1026 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1027 memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
1028 priv->wpa_ie_len = assoc_req->wpa_ie_len;
1029 } else {
1030 memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
1031 priv->wpa_ie_len = 0;
1032 }
1033
1034 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1035 return ret;
1036 }
1037
1038
1039 static int should_deauth_infrastructure(struct lbs_private *priv,
1040 struct assoc_request * assoc_req)
1041 {
1042 int ret = 0;
1043
1044 if (priv->connect_status != LBS_CONNECTED)
1045 return 0;
1046
1047 lbs_deb_enter(LBS_DEB_ASSOC);
1048 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1049 lbs_deb_assoc("Deauthenticating due to new SSID\n");
1050 ret = 1;
1051 goto out;
1052 }
1053
1054 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1055 if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
1056 lbs_deb_assoc("Deauthenticating due to new security\n");
1057 ret = 1;
1058 goto out;
1059 }
1060 }
1061
1062 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1063 lbs_deb_assoc("Deauthenticating due to new BSSID\n");
1064 ret = 1;
1065 goto out;
1066 }
1067
1068 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1069 lbs_deb_assoc("Deauthenticating due to channel switch\n");
1070 ret = 1;
1071 goto out;
1072 }
1073
1074 /* FIXME: deal with 'auto' mode somehow */
1075 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1076 if (assoc_req->mode != IW_MODE_INFRA) {
1077 lbs_deb_assoc("Deauthenticating due to leaving "
1078 "infra mode\n");
1079 ret = 1;
1080 goto out;
1081 }
1082 }
1083
1084 out:
1085 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1086 return ret;
1087 }
1088
1089
1090 static int should_stop_adhoc(struct lbs_private *priv,
1091 struct assoc_request * assoc_req)
1092 {
1093 lbs_deb_enter(LBS_DEB_ASSOC);
1094
1095 if (priv->connect_status != LBS_CONNECTED)
1096 return 0;
1097
1098 if (lbs_ssid_cmp(priv->curbssparams.ssid,
1099 priv->curbssparams.ssid_len,
1100 assoc_req->ssid, assoc_req->ssid_len) != 0)
1101 return 1;
1102
1103 /* FIXME: deal with 'auto' mode somehow */
1104 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1105 if (assoc_req->mode != IW_MODE_ADHOC)
1106 return 1;
1107 }
1108
1109 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1110 if (assoc_req->channel != priv->curbssparams.channel)
1111 return 1;
1112 }
1113
1114 lbs_deb_leave(LBS_DEB_ASSOC);
1115 return 0;
1116 }
1117
1118
1119 /**
1120 * @brief This function finds the best SSID in the Scan List
1121 *
1122 * Search the scan table for the best SSID that also matches the current
1123 * adapter network preference (infrastructure or adhoc)
1124 *
1125 * @param priv A pointer to struct lbs_private
1126 *
1127 * @return index in BSSID list
1128 */
1129 static struct bss_descriptor *lbs_find_best_ssid_in_list(
1130 struct lbs_private *priv, uint8_t mode)
1131 {
1132 uint8_t bestrssi = 0;
1133 struct bss_descriptor *iter_bss;
1134 struct bss_descriptor *best_bss = NULL;
1135
1136 lbs_deb_enter(LBS_DEB_SCAN);
1137
1138 mutex_lock(&priv->lock);
1139
1140 list_for_each_entry(iter_bss, &priv->network_list, list) {
1141 switch (mode) {
1142 case IW_MODE_INFRA:
1143 case IW_MODE_ADHOC:
1144 if (!is_network_compatible(priv, iter_bss, mode))
1145 break;
1146 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1147 break;
1148 bestrssi = SCAN_RSSI(iter_bss->rssi);
1149 best_bss = iter_bss;
1150 break;
1151 case IW_MODE_AUTO:
1152 default:
1153 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1154 break;
1155 bestrssi = SCAN_RSSI(iter_bss->rssi);
1156 best_bss = iter_bss;
1157 break;
1158 }
1159 }
1160
1161 mutex_unlock(&priv->lock);
1162 lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
1163 return best_bss;
1164 }
1165
1166 /**
1167 * @brief Find the best AP
1168 *
1169 * Used from association worker.
1170 *
1171 * @param priv A pointer to struct lbs_private structure
1172 * @param pSSID A pointer to AP's ssid
1173 *
1174 * @return 0--success, otherwise--fail
1175 */
1176 static int lbs_find_best_network_ssid(struct lbs_private *priv,
1177 uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
1178 uint8_t *out_mode)
1179 {
1180 int ret = -1;
1181 struct bss_descriptor *found;
1182
1183 lbs_deb_enter(LBS_DEB_SCAN);
1184
1185 priv->scan_ssid_len = 0;
1186 lbs_scan_networks(priv, 1);
1187 if (priv->surpriseremoved)
1188 goto out;
1189
1190 found = lbs_find_best_ssid_in_list(priv, preferred_mode);
1191 if (found && (found->ssid_len > 0)) {
1192 memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE);
1193 *out_ssid_len = found->ssid_len;
1194 *out_mode = found->mode;
1195 ret = 0;
1196 }
1197
1198 out:
1199 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
1200 return ret;
1201 }
1202
1203
1204 void lbs_association_worker(struct work_struct *work)
1205 {
1206 struct lbs_private *priv = container_of(work, struct lbs_private,
1207 assoc_work.work);
1208 struct assoc_request * assoc_req = NULL;
1209 int ret = 0;
1210 int find_any_ssid = 0;
1211 DECLARE_MAC_BUF(mac);
1212
1213 lbs_deb_enter(LBS_DEB_ASSOC);
1214
1215 mutex_lock(&priv->lock);
1216 assoc_req = priv->pending_assoc_req;
1217 priv->pending_assoc_req = NULL;
1218 priv->in_progress_assoc_req = assoc_req;
1219 mutex_unlock(&priv->lock);
1220
1221 if (!assoc_req)
1222 goto done;
1223
1224 lbs_deb_assoc(
1225 "Association Request:\n"
1226 " flags: 0x%08lx\n"
1227 " SSID: '%s'\n"
1228 " chann: %d\n"
1229 " band: %d\n"
1230 " mode: %d\n"
1231 " BSSID: %s\n"
1232 " secinfo: %s%s%s\n"
1233 " auth_mode: %d\n",
1234 assoc_req->flags,
1235 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
1236 assoc_req->channel, assoc_req->band, assoc_req->mode,
1237 print_mac(mac, assoc_req->bssid),
1238 assoc_req->secinfo.WPAenabled ? " WPA" : "",
1239 assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
1240 assoc_req->secinfo.wep_enabled ? " WEP" : "",
1241 assoc_req->secinfo.auth_mode);
1242
1243 /* If 'any' SSID was specified, find an SSID to associate with */
1244 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
1245 && !assoc_req->ssid_len)
1246 find_any_ssid = 1;
1247
1248 /* But don't use 'any' SSID if there's a valid locked BSSID to use */
1249 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1250 if (compare_ether_addr(assoc_req->bssid, bssid_any)
1251 && compare_ether_addr(assoc_req->bssid, bssid_off))
1252 find_any_ssid = 0;
1253 }
1254
1255 if (find_any_ssid) {
1256 u8 new_mode = assoc_req->mode;
1257
1258 ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
1259 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
1260 if (ret) {
1261 lbs_deb_assoc("Could not find best network\n");
1262 ret = -ENETUNREACH;
1263 goto out;
1264 }
1265
1266 /* Ensure we switch to the mode of the AP */
1267 if (assoc_req->mode == IW_MODE_AUTO) {
1268 set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
1269 assoc_req->mode = new_mode;
1270 }
1271 }
1272
1273 /*
1274 * Check if the attributes being changing require deauthentication
1275 * from the currently associated infrastructure access point.
1276 */
1277 if (priv->mode == IW_MODE_INFRA) {
1278 if (should_deauth_infrastructure(priv, assoc_req)) {
1279 ret = lbs_cmd_80211_deauthenticate(priv,
1280 priv->curbssparams.bssid,
1281 WLAN_REASON_DEAUTH_LEAVING);
1282 if (ret) {
1283 lbs_deb_assoc("Deauthentication due to new "
1284 "configuration request failed: %d\n",
1285 ret);
1286 }
1287 }
1288 } else if (priv->mode == IW_MODE_ADHOC) {
1289 if (should_stop_adhoc(priv, assoc_req)) {
1290 ret = lbs_adhoc_stop(priv);
1291 if (ret) {
1292 lbs_deb_assoc("Teardown of AdHoc network due to "
1293 "new configuration request failed: %d\n",
1294 ret);
1295 }
1296
1297 }
1298 }
1299
1300 /* Send the various configuration bits to the firmware */
1301 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1302 ret = assoc_helper_mode(priv, assoc_req);
1303 if (ret)
1304 goto out;
1305 }
1306
1307 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1308 ret = assoc_helper_channel(priv, assoc_req);
1309 if (ret)
1310 goto out;
1311 }
1312
1313 if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
1314 || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
1315 ret = assoc_helper_wep_keys(priv, assoc_req);
1316 if (ret)
1317 goto out;
1318 }
1319
1320 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1321 ret = assoc_helper_secinfo(priv, assoc_req);
1322 if (ret)
1323 goto out;
1324 }
1325
1326 if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1327 ret = assoc_helper_wpa_ie(priv, assoc_req);
1328 if (ret)
1329 goto out;
1330 }
1331
1332 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
1333 || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1334 ret = assoc_helper_wpa_keys(priv, assoc_req);
1335 if (ret)
1336 goto out;
1337 }
1338
1339 /* SSID/BSSID should be the _last_ config option set, because they
1340 * trigger the association attempt.
1341 */
1342 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
1343 || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1344 int success = 1;
1345
1346 ret = assoc_helper_associate(priv, assoc_req);
1347 if (ret) {
1348 lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
1349 ret);
1350 success = 0;
1351 }
1352
1353 if (priv->connect_status != LBS_CONNECTED) {
1354 lbs_deb_assoc("ASSOC: association unsuccessful, "
1355 "not connected\n");
1356 success = 0;
1357 }
1358
1359 if (success) {
1360 lbs_deb_assoc("associated to %s\n",
1361 print_mac(mac, priv->curbssparams.bssid));
1362 lbs_prepare_and_send_command(priv,
1363 CMD_802_11_RSSI,
1364 0, CMD_OPTION_WAITFORRSP, 0, NULL);
1365 } else {
1366 ret = -1;
1367 }
1368 }
1369
1370 out:
1371 if (ret) {
1372 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
1373 ret);
1374 }
1375
1376 mutex_lock(&priv->lock);
1377 priv->in_progress_assoc_req = NULL;
1378 mutex_unlock(&priv->lock);
1379 kfree(assoc_req);
1380
1381 done:
1382 lbs_deb_leave(LBS_DEB_ASSOC);
1383 }
1384
1385
1386 /*
1387 * Caller MUST hold any necessary locks
1388 */
1389 struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
1390 {
1391 struct assoc_request * assoc_req;
1392
1393 lbs_deb_enter(LBS_DEB_ASSOC);
1394 if (!priv->pending_assoc_req) {
1395 priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
1396 GFP_KERNEL);
1397 if (!priv->pending_assoc_req) {
1398 lbs_pr_info("Not enough memory to allocate association"
1399 " request!\n");
1400 return NULL;
1401 }
1402 }
1403
1404 /* Copy current configuration attributes to the association request,
1405 * but don't overwrite any that are already set.
1406 */
1407 assoc_req = priv->pending_assoc_req;
1408 if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1409 memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
1410 IW_ESSID_MAX_SIZE);
1411 assoc_req->ssid_len = priv->curbssparams.ssid_len;
1412 }
1413
1414 if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
1415 assoc_req->channel = priv->curbssparams.channel;
1416
1417 if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
1418 assoc_req->band = priv->curbssparams.band;
1419
1420 if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
1421 assoc_req->mode = priv->mode;
1422
1423 if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1424 memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
1425 ETH_ALEN);
1426 }
1427
1428 if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
1429 int i;
1430 for (i = 0; i < 4; i++) {
1431 memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
1432 sizeof(struct enc_key));
1433 }
1434 }
1435
1436 if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
1437 assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
1438
1439 if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
1440 memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
1441 sizeof(struct enc_key));
1442 }
1443
1444 if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1445 memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
1446 sizeof(struct enc_key));
1447 }
1448
1449 if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1450 memcpy(&assoc_req->secinfo, &priv->secinfo,
1451 sizeof(struct lbs_802_11_security));
1452 }
1453
1454 if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1455 memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
1456 MAX_WPA_IE_LEN);
1457 assoc_req->wpa_ie_len = priv->wpa_ie_len;
1458 }
1459
1460 lbs_deb_leave(LBS_DEB_ASSOC);
1461 return assoc_req;
1462 }
1463
1464
1465 /**
1466 * @brief This function prepares command of authenticate.
1467 *
1468 * @param priv A pointer to struct lbs_private structure
1469 * @param cmd A pointer to cmd_ds_command structure
1470 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
1471 *
1472 * @return 0 or -1
1473 */
1474 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
1475 struct cmd_ds_command *cmd,
1476 void *pdata_buf)
1477 {
1478 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
1479 int ret = -1;
1480 u8 *bssid = pdata_buf;
1481 DECLARE_MAC_BUF(mac);
1482
1483 lbs_deb_enter(LBS_DEB_JOIN);
1484
1485 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
1486 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
1487 + S_DS_GEN);
1488
1489 /* translate auth mode to 802.11 defined wire value */
1490 switch (priv->secinfo.auth_mode) {
1491 case IW_AUTH_ALG_OPEN_SYSTEM:
1492 pauthenticate->authtype = 0x00;
1493 break;
1494 case IW_AUTH_ALG_SHARED_KEY:
1495 pauthenticate->authtype = 0x01;
1496 break;
1497 case IW_AUTH_ALG_LEAP:
1498 pauthenticate->authtype = 0x80;
1499 break;
1500 default:
1501 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
1502 priv->secinfo.auth_mode);
1503 goto out;
1504 }
1505
1506 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
1507
1508 lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
1509 print_mac(mac, bssid), pauthenticate->authtype);
1510 ret = 0;
1511
1512 out:
1513 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1514 return ret;
1515 }
1516
1517 /**
1518 * @brief Deauthenticate from a specific BSS
1519 *
1520 * @param priv A pointer to struct lbs_private structure
1521 * @param bssid The specific BSS to deauthenticate from
1522 * @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating
1523 *
1524 * @return 0 on success, error on failure
1525 */
1526 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN],
1527 u16 reason)
1528 {
1529 struct cmd_ds_802_11_deauthenticate cmd;
1530 int ret;
1531
1532 lbs_deb_enter(LBS_DEB_JOIN);
1533
1534 memset(&cmd, 0, sizeof(cmd));
1535 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1536 memcpy(cmd.macaddr, &bssid[0], ETH_ALEN);
1537 cmd.reasoncode = cpu_to_le16(reason);
1538
1539 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
1540
1541 /* Clean up everything even if there was an error; can't assume that
1542 * we're still authenticated to the AP after trying to deauth.
1543 */
1544 lbs_mac_event_disconnected(priv);
1545
1546 lbs_deb_leave(LBS_DEB_JOIN);
1547 return ret;
1548 }
1549
1550 int lbs_cmd_80211_associate(struct lbs_private *priv,
1551 struct cmd_ds_command *cmd, void *pdata_buf)
1552 {
1553 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
1554 int ret = 0;
1555 struct assoc_request *assoc_req = pdata_buf;
1556 struct bss_descriptor *bss = &assoc_req->bss;
1557 u8 *pos;
1558 u16 tmpcap, tmplen;
1559 struct mrvlietypes_ssidparamset *ssid;
1560 struct mrvlietypes_phyparamset *phy;
1561 struct mrvlietypes_ssparamset *ss;
1562 struct mrvlietypes_ratesparamset *rates;
1563 struct mrvlietypes_rsnparamset *rsn;
1564
1565 lbs_deb_enter(LBS_DEB_ASSOC);
1566
1567 pos = (u8 *) passo;
1568
1569 if (!priv) {
1570 ret = -1;
1571 goto done;
1572 }
1573
1574 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1575
1576 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
1577 pos += sizeof(passo->peerstaaddr);
1578
1579 /* set the listen interval */
1580 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1581
1582 pos += sizeof(passo->capability);
1583 pos += sizeof(passo->listeninterval);
1584 pos += sizeof(passo->bcnperiod);
1585 pos += sizeof(passo->dtimperiod);
1586
1587 ssid = (struct mrvlietypes_ssidparamset *) pos;
1588 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
1589 tmplen = bss->ssid_len;
1590 ssid->header.len = cpu_to_le16(tmplen);
1591 memcpy(ssid->ssid, bss->ssid, tmplen);
1592 pos += sizeof(ssid->header) + tmplen;
1593
1594 phy = (struct mrvlietypes_phyparamset *) pos;
1595 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
1596 tmplen = sizeof(phy->fh_ds.dsparamset);
1597 phy->header.len = cpu_to_le16(tmplen);
1598 memcpy(&phy->fh_ds.dsparamset,
1599 &bss->phyparamset.dsparamset.currentchan,
1600 tmplen);
1601 pos += sizeof(phy->header) + tmplen;
1602
1603 ss = (struct mrvlietypes_ssparamset *) pos;
1604 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
1605 tmplen = sizeof(ss->cf_ibss.cfparamset);
1606 ss->header.len = cpu_to_le16(tmplen);
1607 pos += sizeof(ss->header) + tmplen;
1608
1609 rates = (struct mrvlietypes_ratesparamset *) pos;
1610 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
1611 memcpy(&rates->rates, &bss->rates, MAX_RATES);
1612 tmplen = MAX_RATES;
1613 if (get_common_rates(priv, rates->rates, &tmplen)) {
1614 ret = -1;
1615 goto done;
1616 }
1617 pos += sizeof(rates->header) + tmplen;
1618 rates->header.len = cpu_to_le16(tmplen);
1619 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
1620
1621 /* Copy the infra. association rates into Current BSS state structure */
1622 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1623 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
1624
1625 /* Set MSB on basic rates as the firmware requires, but _after_
1626 * copying to current bss rates.
1627 */
1628 lbs_set_basic_rate_flags(rates->rates, tmplen);
1629
1630 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1631 rsn = (struct mrvlietypes_rsnparamset *) pos;
1632 /* WPA_IE or WPA2_IE */
1633 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
1634 tmplen = (u16) assoc_req->wpa_ie[1];
1635 rsn->header.len = cpu_to_le16(tmplen);
1636 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
1637 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
1638 sizeof(rsn->header) + tmplen);
1639 pos += sizeof(rsn->header) + tmplen;
1640 }
1641
1642 /* update curbssparams */
1643 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
1644
1645 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1646 ret = -1;
1647 goto done;
1648 }
1649
1650 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
1651
1652 /* set the capability info */
1653 tmpcap = (bss->capability & CAPINFO_MASK);
1654 if (bss->mode == IW_MODE_INFRA)
1655 tmpcap |= WLAN_CAPABILITY_ESS;
1656 passo->capability = cpu_to_le16(tmpcap);
1657 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
1658
1659 done:
1660 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1661 return ret;
1662 }
1663
1664 int lbs_ret_80211_associate(struct lbs_private *priv,
1665 struct cmd_ds_command *resp)
1666 {
1667 int ret = 0;
1668 union iwreq_data wrqu;
1669 struct ieeetypes_assocrsp *passocrsp;
1670 struct bss_descriptor *bss;
1671 u16 status_code;
1672
1673 lbs_deb_enter(LBS_DEB_ASSOC);
1674
1675 if (!priv->in_progress_assoc_req) {
1676 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
1677 ret = -1;
1678 goto done;
1679 }
1680 bss = &priv->in_progress_assoc_req->bss;
1681
1682 passocrsp = (struct ieeetypes_assocrsp *) &resp->params;
1683
1684 /*
1685 * Older FW versions map the IEEE 802.11 Status Code in the association
1686 * response to the following values returned in passocrsp->statuscode:
1687 *
1688 * IEEE Status Code Marvell Status Code
1689 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1690 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1691 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1692 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1693 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1694 * others -> 0x0003 ASSOC_RESULT_REFUSED
1695 *
1696 * Other response codes:
1697 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1698 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1699 * association response from the AP)
1700 */
1701
1702 status_code = le16_to_cpu(passocrsp->statuscode);
1703 switch (status_code) {
1704 case 0x00:
1705 break;
1706 case 0x01:
1707 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
1708 break;
1709 case 0x02:
1710 lbs_deb_assoc("ASSOC_RESP: internal timer "
1711 "expired while waiting for the AP\n");
1712 break;
1713 case 0x03:
1714 lbs_deb_assoc("ASSOC_RESP: association "
1715 "refused by AP\n");
1716 break;
1717 case 0x04:
1718 lbs_deb_assoc("ASSOC_RESP: authentication "
1719 "refused by AP\n");
1720 break;
1721 default:
1722 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
1723 " unknown\n", status_code);
1724 break;
1725 }
1726
1727 if (status_code) {
1728 lbs_mac_event_disconnected(priv);
1729 ret = -1;
1730 goto done;
1731 }
1732
1733 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
1734 le16_to_cpu(resp->size) - S_DS_GEN);
1735
1736 /* Send a Media Connected event, according to the Spec */
1737 priv->connect_status = LBS_CONNECTED;
1738
1739 /* Update current SSID and BSSID */
1740 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1741 priv->curbssparams.ssid_len = bss->ssid_len;
1742 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1743
1744 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
1745 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
1746
1747 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
1748 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
1749 priv->nextSNRNF = 0;
1750 priv->numSNRNF = 0;
1751
1752 netif_carrier_on(priv->dev);
1753 if (!priv->tx_pending_len)
1754 netif_wake_queue(priv->dev);
1755
1756 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1757 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1758 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1759
1760 done:
1761 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1762 return ret;
1763 }
1764
1765 static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp)
1766 {
1767 int ret = 0;
1768 u16 command = le16_to_cpu(resp->command);
1769 u16 result = le16_to_cpu(resp->result);
1770 struct cmd_ds_802_11_ad_hoc_result *adhoc_resp;
1771 union iwreq_data wrqu;
1772 struct bss_descriptor *bss;
1773 DECLARE_MAC_BUF(mac);
1774
1775 lbs_deb_enter(LBS_DEB_JOIN);
1776
1777 adhoc_resp = (struct cmd_ds_802_11_ad_hoc_result *) resp;
1778
1779 if (!priv->in_progress_assoc_req) {
1780 lbs_deb_join("ADHOC_RESP: no in-progress association "
1781 "request\n");
1782 ret = -1;
1783 goto done;
1784 }
1785 bss = &priv->in_progress_assoc_req->bss;
1786
1787 /*
1788 * Join result code 0 --> SUCCESS
1789 */
1790 if (result) {
1791 lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result);
1792 if (priv->connect_status == LBS_CONNECTED)
1793 lbs_mac_event_disconnected(priv);
1794 ret = -1;
1795 goto done;
1796 }
1797
1798 /* Send a Media Connected event, according to the Spec */
1799 priv->connect_status = LBS_CONNECTED;
1800
1801 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
1802 /* Update the created network descriptor with the new BSSID */
1803 memcpy(bss->bssid, adhoc_resp->bssid, ETH_ALEN);
1804 }
1805
1806 /* Set the BSSID from the joined/started descriptor */
1807 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1808
1809 /* Set the new SSID to current SSID */
1810 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1811 priv->curbssparams.ssid_len = bss->ssid_len;
1812
1813 netif_carrier_on(priv->dev);
1814 if (!priv->tx_pending_len)
1815 netif_wake_queue(priv->dev);
1816
1817 memset(&wrqu, 0, sizeof(wrqu));
1818 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1819 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1820 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1821
1822 lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %s, channel %d\n",
1823 escape_essid(bss->ssid, bss->ssid_len),
1824 print_mac(mac, priv->curbssparams.bssid),
1825 priv->curbssparams.channel);
1826
1827 done:
1828 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1829 return ret;
1830 }
1831
Linux kernel - Deliverables
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