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ath9k: Add RF kill support
[deliverable/linux.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 10
f5fe1fda 11static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp);
876c9d3a 12
5a6e0434
IH		 13static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
14 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
15static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
16 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
876c9d3a 17
697900ac
HS		 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
f5fe1fda
DW		 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 */
38static 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
73done:
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 */
89static 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
697900ac
HS		 100
101/**
102 * @brief Associate to a specific BSS discovered in a scan
103 *
104 * @param priv A pointer to struct lbs_private structure
d5db2dfa 105 * @param assoc_req The association request describing the BSS to associate with
697900ac
HS		 106 *
107 * @return 0-success, otherwise fail
108 */
109static int lbs_associate(struct lbs_private *priv,
110 struct assoc_request *assoc_req)
111{
112 int ret;
d5db2dfa 113 u8 preamble = RADIO_PREAMBLE_LONG;
697900ac
HS		 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);
697900ac 120 if (ret)
d5db2dfa 121 goto out;
697900ac 122
d5db2dfa 123 /* Use short preamble only when both the BSS and firmware support it */
697900ac
HS		 124 if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
125 (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
d5db2dfa 126 preamble = RADIO_PREAMBLE_SHORT;
697900ac 127
d5db2dfa
DW		 128 ret = lbs_set_radio(priv, preamble, 1);
129 if (ret)
130 goto out;
697900ac
HS		 131
132 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
133 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
134
d5db2dfa 135out:
697900ac
HS		 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
d5db2dfa 144 * @param assoc_req The association request describing the BSS to join
697900ac 145 *
f5fe1fda 146 * @return 0 on success, error on failure
697900ac 147 */
f5fe1fda 148static int lbs_adhoc_join(struct lbs_private *priv,
697900ac
HS		 149 struct assoc_request *assoc_req)
150{
f5fe1fda 151 struct cmd_ds_802_11_ad_hoc_join cmd;
697900ac 152 struct bss_descriptor *bss = &assoc_req->bss;
d5db2dfa 153 u8 preamble = RADIO_PREAMBLE_LONG;
f5fe1fda
DW		 154 DECLARE_MAC_BUF(mac);
155 u16 ratesize = 0;
156 int ret = 0;
d5db2dfa
DW		 157
158 lbs_deb_enter(LBS_DEB_ASSOC);
697900ac
HS		 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
d5db2dfa
DW		 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)) {
697900ac 194 lbs_deb_join("AdhocJoin: Short preamble\n");
d5db2dfa 195 preamble = RADIO_PREAMBLE_SHORT;
697900ac
HS		 196 }
197
d5db2dfa
DW		 198 ret = lbs_set_radio(priv, preamble, 1);
199 if (ret)
200 goto out;
697900ac
HS		 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;
f5fe1fda 206 priv->curbssparams.channel = bss->channel;
697900ac 207
f5fe1fda
DW		 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);
697900ac
HS		 288
289out:
d5db2dfa 290 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
697900ac
HS		 291 return ret;
292}
293
294/**
295 * @brief Start an Adhoc Network
296 *
297 * @param priv A pointer to struct lbs_private structure
d5db2dfa 298 * @param assoc_req The association request describing the BSS to start
f5fe1fda
DW		 299 *
300 * @return 0 on success, error on failure
697900ac 301 */
f5fe1fda 302static int lbs_adhoc_start(struct lbs_private *priv,
697900ac
HS		 303 struct assoc_request *assoc_req)
304{
f5fe1fda 305 struct cmd_ds_802_11_ad_hoc_start cmd;
d5db2dfa 306 u8 preamble = RADIO_PREAMBLE_LONG;
f5fe1fda
DW		 307 size_t ratesize = 0;
308 u16 tmpcap = 0;
309 int ret = 0;
d5db2dfa
DW		 310
311 lbs_deb_enter(LBS_DEB_ASSOC);
697900ac 312
697900ac 313 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
f5fe1fda 314 lbs_deb_join("ADHOC_START: Will use short preamble\n");
d5db2dfa 315 preamble = RADIO_PREAMBLE_SHORT;
697900ac
HS		 316 }
317
d5db2dfa
DW		 318 ret = lbs_set_radio(priv, preamble, 1);
319 if (ret)
320 goto out;
697900ac 321
f5fe1fda
DW		 322 /* Build the start command */
323 memset(&cmd, 0, sizeof(cmd));
324 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
697900ac 325
f5fe1fda
DW		 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);
697900ac 394
d5db2dfa
DW		 395out:
396 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
697900ac
HS		 397 return ret;
398}
399
f5fe1fda
DW		 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 */
406int lbs_adhoc_stop(struct lbs_private *priv)
697900ac 407{
f5fe1fda
DW		 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;
697900ac 423}
e76850d6 424
245bf20f
HS		 425static 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
438static 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
449static 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
462static 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
475static 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 */
507static 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
563done:
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 */
579static 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
614out:
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 */
631static 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
685out:
686 mutex_unlock(&priv->lock);
687 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
688 return found_bss;
689}
690
69f9032d 691static int assoc_helper_essid(struct lbs_private *priv,
876c9d3a
MT		 692 struct assoc_request * assoc_req)
693{
876c9d3a 694 int ret = 0;
fcdb53db 695 struct bss_descriptor * bss;
aeea0ab4 696 int channel = -1;
876c9d3a 697
9012b28a 698 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 699
ef9a264b
DW		 700 /* FIXME: take channel into account when picking SSIDs if a channel
701 * is set.
702 */
703
aeea0ab4
DW		 704 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
705 channel = assoc_req->channel;
706
0765af44 707 lbs_deb_assoc("SSID '%s' requested\n",
d8efea25 708 escape_essid(assoc_req->ssid, assoc_req->ssid_len));
0dc5a290 709 if (assoc_req->mode == IW_MODE_INFRA) {
10078321 710 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
52933d81 711 assoc_req->ssid_len);
876c9d3a 712
aa21c004 713 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
d8efea25 714 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
fcdb53db 715 if (bss != NULL) {
e76850d6 716 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
10078321 717 ret = lbs_associate(priv, assoc_req);
876c9d3a 718 } else {
d8efea25 719 lbs_deb_assoc("SSID not found; cannot associate\n");
876c9d3a 720 }
0dc5a290 721 } else if (assoc_req->mode == IW_MODE_ADHOC) {
876c9d3a
MT		 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 */
10078321 725 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
52933d81 726 assoc_req->ssid_len);
876c9d3a
MT		 727
728 /* Search for the requested SSID in the scan table */
aa21c004 729 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
d8efea25 730 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
fcdb53db 731 if (bss != NULL) {
d8efea25 732 lbs_deb_assoc("SSID found, will join\n");
e76850d6 733 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
f5fe1fda 734 lbs_adhoc_join(priv, assoc_req);
876c9d3a
MT		 735 } else {
736 /* else send START command */
d8efea25 737 lbs_deb_assoc("SSID not found, creating adhoc network\n");
e76850d6 738 memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
d8efea25
DW		 739 IW_ESSID_MAX_SIZE);
740 assoc_req->bss.ssid_len = assoc_req->ssid_len;
f5fe1fda 741 lbs_adhoc_start(priv, assoc_req);
876c9d3a 742 }
876c9d3a
MT		 743 }
744
9012b28a 745 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 746 return ret;
747}
748
749
69f9032d 750static int assoc_helper_bssid(struct lbs_private *priv,
876c9d3a
MT		 751 struct assoc_request * assoc_req)
752{
fcdb53db
DW		 753 int ret = 0;
754 struct bss_descriptor * bss;
0795af57 755 DECLARE_MAC_BUF(mac);
876c9d3a 756
0795af57
JP		 757 lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
758 print_mac(mac, assoc_req->bssid));
876c9d3a
MT		 759
760 /* Search for index position in list for requested MAC */
aa21c004 761 bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
876c9d3a 762 assoc_req->mode);
fcdb53db 763 if (bss == NULL) {
0795af57
JP		 764 lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
765 "cannot associate.\n", print_mac(mac, assoc_req->bssid));
876c9d3a
MT		 766 goto out;
767 }
768
e76850d6 769 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
0dc5a290 770 if (assoc_req->mode == IW_MODE_INFRA) {
10078321
HS		 771 ret = lbs_associate(priv, assoc_req);
772 lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret);
0dc5a290 773 } else if (assoc_req->mode == IW_MODE_ADHOC) {
f5fe1fda 774 lbs_adhoc_join(priv, assoc_req);
876c9d3a 775 }
876c9d3a
MT		 776
777out:
9012b28a 778 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 779 return ret;
780}
781
782
69f9032d 783static int assoc_helper_associate(struct lbs_private *priv,
876c9d3a
MT		 784 struct assoc_request * assoc_req)
785{
786 int ret = 0, done = 0;
787
0765af44
HS		 788 lbs_deb_enter(LBS_DEB_ASSOC);
789
876c9d3a
MT		 790 /* If we're given and 'any' BSSID, try associating based on SSID */
791
792 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
3cf20931
DW		 793 if (compare_ether_addr(bssid_any, assoc_req->bssid)
794 && compare_ether_addr(bssid_off, assoc_req->bssid)) {
876c9d3a
MT		 795 ret = assoc_helper_bssid(priv, assoc_req);
796 done = 1;
876c9d3a
MT		 797 }
798 }
799
800 if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
801 ret = assoc_helper_essid(priv, assoc_req);
876c9d3a
MT		 802 }
803
0765af44 804 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 805 return ret;
806}
807
808
69f9032d 809static int assoc_helper_mode(struct lbs_private *priv,
876c9d3a
MT		 810 struct assoc_request * assoc_req)
811{
876c9d3a
MT		 812 int ret = 0;
813
9012b28a 814 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 815
aa21c004 816 if (assoc_req->mode == priv->mode)
9012b28a 817 goto done;
876c9d3a 818
0dc5a290 819 if (assoc_req->mode == IW_MODE_INFRA) {
aa21c004 820 if (priv->psstate != PS_STATE_FULL_POWER)
10078321 821 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
aa21c004 822 priv->psmode = LBS802_11POWERMODECAM;
876c9d3a
MT		 823 }
824
aa21c004 825 priv->mode = assoc_req->mode;
10078321 826 ret = lbs_prepare_and_send_command(priv,
0aef64d7
DW		 827 CMD_802_11_SNMP_MIB,
828 0, CMD_OPTION_WAITFORRSP,
876c9d3a 829 OID_802_11_INFRASTRUCTURE_MODE,
981f187b 830 /* Shoot me now */ (void *) (size_t) assoc_req->mode);
876c9d3a 831
9012b28a
HS		 832done:
833 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 834 return ret;
835}
836
69f9032d 837static int assoc_helper_channel(struct lbs_private *priv,
ef9a264b
DW		 838 struct assoc_request * assoc_req)
839{
ef9a264b
DW		 840 int ret = 0;
841
842 lbs_deb_enter(LBS_DEB_ASSOC);
843
9f462577 844 ret = lbs_update_channel(priv);
d1a469fd 845 if (ret) {
23d36eec 846 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
d1a469fd 847 goto done;
ef9a264b
DW		 848 }
849
aa21c004 850 if (assoc_req->channel == priv->curbssparams.channel)
ef9a264b
DW		 851 goto done;
852
8642f1f0 853 if (priv->mesh_dev) {
86062134
DW		 854 /* Change mesh channel first; 21.p21 firmware won't let
855 you change channel otherwise (even though it'll return
856 an error to this */
edaea5ce
JC		 857 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
858 assoc_req->channel);
8642f1f0
DW		 859 }
860
ef9a264b 861 lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
86062134 862 priv->curbssparams.channel, assoc_req->channel);
ef9a264b 863
2dd4b262
DW		 864 ret = lbs_set_channel(priv, assoc_req->channel);
865 if (ret < 0)
23d36eec 866 lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
ef9a264b 867
2dd4b262
DW		 868 /* FIXME: shouldn't need to grab the channel _again_ after setting
869 * it since the firmware is supposed to return the new channel, but
870 * whatever... */
9f462577 871 ret = lbs_update_channel(priv);
d1a469fd 872 if (ret) {
23d36eec 873 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
d1a469fd
DW		 874 goto done;
875 }
ef9a264b 876
aa21c004 877 if (assoc_req->channel != priv->curbssparams.channel) {
88ae2915 878 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
ef9a264b 879 assoc_req->channel);
8642f1f0 880 goto restore_mesh;
ef9a264b
DW		 881 }
882
883 if ( assoc_req->secinfo.wep_enabled
884 && (assoc_req->wep_keys[0].len
885 || assoc_req->wep_keys[1].len
886 || assoc_req->wep_keys[2].len
887 || assoc_req->wep_keys[3].len)) {
888 /* Make sure WEP keys are re-sent to firmware */
889 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
890 }
891
892 /* Must restart/rejoin adhoc networks after channel change */
23d36eec 893 set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
ef9a264b 894
8642f1f0
DW		 895 restore_mesh:
896 if (priv->mesh_dev)
edaea5ce
JC		 897 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
898 priv->curbssparams.channel);
8642f1f0
DW		 899
900 done:
ef9a264b
DW		 901 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
902 return ret;
903}
904
905
69f9032d 906static int assoc_helper_wep_keys(struct lbs_private *priv,
f70dd451 907 struct assoc_request *assoc_req)
876c9d3a 908{
876c9d3a
MT		 909 int i;
910 int ret = 0;
911
9012b28a 912 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a
MT		 913
914 /* Set or remove WEP keys */
f70dd451
DW		 915 if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
916 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
917 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
918 else
919 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
876c9d3a
MT		 920
921 if (ret)
922 goto out;
923
924 /* enable/disable the MAC's WEP packet filter */
889c05bd 925 if (assoc_req->secinfo.wep_enabled)
d9e9778c 926 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
876c9d3a 927 else
d9e9778c 928 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
f70dd451 929
c97329e2 930 lbs_set_mac_control(priv);
876c9d3a 931
aa21c004 932 mutex_lock(&priv->lock);
876c9d3a 933
aa21c004 934 /* Copy WEP keys into priv wep key fields */
876c9d3a 935 for (i = 0; i < 4; i++) {
aa21c004 936 memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
f70dd451 937 sizeof(struct enc_key));
876c9d3a 938 }
aa21c004 939 priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
876c9d3a 940
aa21c004 941 mutex_unlock(&priv->lock);
876c9d3a
MT		 942
943out:
9012b28a 944 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 945 return ret;
946}
947
69f9032d 948static int assoc_helper_secinfo(struct lbs_private *priv,
876c9d3a
MT		 949 struct assoc_request * assoc_req)
950{
876c9d3a 951 int ret = 0;
4f59abf1
DW		 952 uint16_t do_wpa;
953 uint16_t rsn = 0;
876c9d3a 954
9012b28a 955 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 956
aa21c004 957 memcpy(&priv->secinfo, &assoc_req->secinfo,
10078321 958 sizeof(struct lbs_802_11_security));
876c9d3a 959
c97329e2 960 lbs_set_mac_control(priv);
876c9d3a 961
18c96c34
DW		 962 /* If RSN is already enabled, don't try to enable it again, since
963 * ENABLE_RSN resets internal state machines and will clobber the
964 * 4-way WPA handshake.
965 */
966
967 /* Get RSN enabled/disabled */
4f59abf1 968 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
18c96c34 969 if (ret) {
23d36eec 970 lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
18c96c34
DW		 971 goto out;
972 }
973
974 /* Don't re-enable RSN if it's already enabled */
4f59abf1 975 do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
18c96c34
DW		 976 if (do_wpa == rsn)
977 goto out;
978
979 /* Set RSN enabled/disabled */
4f59abf1 980 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
90a42210
DW		 981
982out:
9012b28a 983 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 984 return ret;
985}
986
987
69f9032d 988static int assoc_helper_wpa_keys(struct lbs_private *priv,
876c9d3a
MT		 989 struct assoc_request * assoc_req)
990{
991 int ret = 0;
2bcde51d 992 unsigned int flags = assoc_req->flags;
876c9d3a 993
9012b28a 994 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 995
2bcde51d
DW		 996 /* Work around older firmware bug where WPA unicast and multicast
997 * keys must be set independently. Seen in SDIO parts with firmware
998 * version 5.0.11p0.
999 */
876c9d3a 1000
2bcde51d
DW		 1001 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1002 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
9e1228d0 1003 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
2bcde51d
DW		 1004 assoc_req->flags = flags;
1005 }
1006
1007 if (ret)
1008 goto out;
1009
1010 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
1011 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
1012
9e1228d0 1013 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
2bcde51d
DW		 1014 assoc_req->flags = flags;
1015 }
1016
1017out:
9012b28a 1018 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 1019 return ret;
1020}
1021
1022
69f9032d 1023static int assoc_helper_wpa_ie(struct lbs_private *priv,
876c9d3a
MT		 1024 struct assoc_request * assoc_req)
1025{
876c9d3a
MT		 1026 int ret = 0;
1027
9012b28a 1028 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a
MT		 1029
1030 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
aa21c004
DW		 1031 memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
1032 priv->wpa_ie_len = assoc_req->wpa_ie_len;
876c9d3a 1033 } else {
aa21c004
DW		 1034 memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
1035 priv->wpa_ie_len = 0;
876c9d3a
MT		 1036 }
1037
9012b28a 1038 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
876c9d3a
MT		 1039 return ret;
1040}
1041
1042
aa21c004 1043static int should_deauth_infrastructure(struct lbs_private *priv,
876c9d3a
MT		 1044 struct assoc_request * assoc_req)
1045{
0765af44
HS		 1046 int ret = 0;
1047
aa21c004 1048 if (priv->connect_status != LBS_CONNECTED)
876c9d3a
MT		 1049 return 0;
1050
52507c20 1051 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 1052 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
0765af44
HS		 1053 lbs_deb_assoc("Deauthenticating due to new SSID\n");
1054 ret = 1;
1055 goto out;
876c9d3a
MT		 1056 }
1057
1058 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
aa21c004 1059 if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
0765af44
HS		 1060 lbs_deb_assoc("Deauthenticating due to new security\n");
1061 ret = 1;
1062 goto out;
876c9d3a
MT		 1063 }
1064 }
1065
1066 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
0765af44
HS		 1067 lbs_deb_assoc("Deauthenticating due to new BSSID\n");
1068 ret = 1;
1069 goto out;
876c9d3a
MT		 1070 }
1071
fff47f10 1072 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
0765af44
HS		 1073 lbs_deb_assoc("Deauthenticating due to channel switch\n");
1074 ret = 1;
1075 goto out;
fff47f10
LCCR		 1076 }
1077
876c9d3a
MT		 1078 /* FIXME: deal with 'auto' mode somehow */
1079 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
0765af44
HS		 1080 if (assoc_req->mode != IW_MODE_INFRA) {
1081 lbs_deb_assoc("Deauthenticating due to leaving "
1082 "infra mode\n");
1083 ret = 1;
1084 goto out;
1085 }
876c9d3a
MT		 1086 }
1087
0765af44
HS		 1088out:
1089 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
52507c20 1090 return ret;
876c9d3a
MT		 1091}
1092
1093
aa21c004 1094static int should_stop_adhoc(struct lbs_private *priv,
876c9d3a
MT		 1095 struct assoc_request * assoc_req)
1096{
0765af44
HS		 1097 lbs_deb_enter(LBS_DEB_ASSOC);
1098
aa21c004 1099 if (priv->connect_status != LBS_CONNECTED)
876c9d3a
MT		 1100 return 0;
1101
aa21c004
DW		 1102 if (lbs_ssid_cmp(priv->curbssparams.ssid,
1103 priv->curbssparams.ssid_len,
d8efea25 1104 assoc_req->ssid, assoc_req->ssid_len) != 0)
876c9d3a
MT		 1105 return 1;
1106
1107 /* FIXME: deal with 'auto' mode somehow */
1108 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
0dc5a290 1109 if (assoc_req->mode != IW_MODE_ADHOC)
876c9d3a
MT		 1110 return 1;
1111 }
1112
ef9a264b 1113 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
aa21c004 1114 if (assoc_req->channel != priv->curbssparams.channel)
ef9a264b
DW		 1115 return 1;
1116 }
1117
0765af44 1118 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 1119 return 0;
1120}
1121
1122
245bf20f
HS		 1123/**
1124 * @brief This function finds the best SSID in the Scan List
1125 *
1126 * Search the scan table for the best SSID that also matches the current
1127 * adapter network preference (infrastructure or adhoc)
1128 *
1129 * @param priv A pointer to struct lbs_private
1130 *
1131 * @return index in BSSID list
1132 */
1133static struct bss_descriptor *lbs_find_best_ssid_in_list(
1134 struct lbs_private *priv, uint8_t mode)
1135{
1136 uint8_t bestrssi = 0;
1137 struct bss_descriptor *iter_bss;
1138 struct bss_descriptor *best_bss = NULL;
1139
1140 lbs_deb_enter(LBS_DEB_SCAN);
1141
1142 mutex_lock(&priv->lock);
1143
1144 list_for_each_entry(iter_bss, &priv->network_list, list) {
1145 switch (mode) {
1146 case IW_MODE_INFRA:
1147 case IW_MODE_ADHOC:
1148 if (!is_network_compatible(priv, iter_bss, mode))
1149 break;
1150 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1151 break;
1152 bestrssi = SCAN_RSSI(iter_bss->rssi);
1153 best_bss = iter_bss;
1154 break;
1155 case IW_MODE_AUTO:
1156 default:
1157 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1158 break;
1159 bestrssi = SCAN_RSSI(iter_bss->rssi);
1160 best_bss = iter_bss;
1161 break;
1162 }
1163 }
1164
1165 mutex_unlock(&priv->lock);
1166 lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
1167 return best_bss;
1168}
1169
1170/**
1171 * @brief Find the best AP
1172 *
1173 * Used from association worker.
1174 *
1175 * @param priv A pointer to struct lbs_private structure
1176 * @param pSSID A pointer to AP's ssid
1177 *
1178 * @return 0--success, otherwise--fail
1179 */
1180static int lbs_find_best_network_ssid(struct lbs_private *priv,
1181 uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
1182 uint8_t *out_mode)
1183{
1184 int ret = -1;
1185 struct bss_descriptor *found;
1186
1187 lbs_deb_enter(LBS_DEB_SCAN);
1188
1189 priv->scan_ssid_len = 0;
1190 lbs_scan_networks(priv, 1);
1191 if (priv->surpriseremoved)
1192 goto out;
1193
1194 found = lbs_find_best_ssid_in_list(priv, preferred_mode);
1195 if (found && (found->ssid_len > 0)) {
1196 memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE);
1197 *out_ssid_len = found->ssid_len;
1198 *out_mode = found->mode;
1199 ret = 0;
1200 }
1201
1202out:
1203 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
1204 return ret;
1205}
1206
1207
10078321 1208void lbs_association_worker(struct work_struct *work)
876c9d3a 1209{
69f9032d
HS		 1210 struct lbs_private *priv = container_of(work, struct lbs_private,
1211 assoc_work.work);
876c9d3a
MT		 1212 struct assoc_request * assoc_req = NULL;
1213 int ret = 0;
1214 int find_any_ssid = 0;
0795af57 1215 DECLARE_MAC_BUF(mac);
876c9d3a 1216
9012b28a 1217 lbs_deb_enter(LBS_DEB_ASSOC);
876c9d3a 1218
aa21c004
DW		 1219 mutex_lock(&priv->lock);
1220 assoc_req = priv->pending_assoc_req;
1221 priv->pending_assoc_req = NULL;
1222 priv->in_progress_assoc_req = assoc_req;
1223 mutex_unlock(&priv->lock);
876c9d3a 1224
9012b28a
HS		 1225 if (!assoc_req)
1226 goto done;
876c9d3a 1227
0765af44
HS		 1228 lbs_deb_assoc(
1229 "Association Request:\n"
1230 " flags: 0x%08lx\n"
1231 " SSID: '%s'\n"
1232 " chann: %d\n"
1233 " band: %d\n"
1234 " mode: %d\n"
1235 " BSSID: %s\n"
1236 " secinfo: %s%s%s\n"
1237 " auth_mode: %d\n",
1238 assoc_req->flags,
1239 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
1240 assoc_req->channel, assoc_req->band, assoc_req->mode,
1241 print_mac(mac, assoc_req->bssid),
1242 assoc_req->secinfo.WPAenabled ? " WPA" : "",
1243 assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
1244 assoc_req->secinfo.wep_enabled ? " WEP" : "",
1245 assoc_req->secinfo.auth_mode);
876c9d3a
MT		 1246
1247 /* If 'any' SSID was specified, find an SSID to associate with */
1248 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
d8efea25 1249 && !assoc_req->ssid_len)
876c9d3a
MT		 1250 find_any_ssid = 1;
1251
1252 /* But don't use 'any' SSID if there's a valid locked BSSID to use */
1253 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
3cf20931
DW		 1254 if (compare_ether_addr(assoc_req->bssid, bssid_any)
1255 && compare_ether_addr(assoc_req->bssid, bssid_off))
876c9d3a
MT		 1256 find_any_ssid = 0;
1257 }
1258
1259 if (find_any_ssid) {
877cb0d4 1260 u8 new_mode = assoc_req->mode;
876c9d3a 1261
10078321 1262 ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
d8efea25 1263 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
876c9d3a 1264 if (ret) {
9012b28a 1265 lbs_deb_assoc("Could not find best network\n");
876c9d3a
MT		 1266 ret = -ENETUNREACH;
1267 goto out;
1268 }
1269
1270 /* Ensure we switch to the mode of the AP */
0dc5a290 1271 if (assoc_req->mode == IW_MODE_AUTO) {
876c9d3a
MT		 1272 set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
1273 assoc_req->mode = new_mode;
1274 }
1275 }
1276
1277 /*
1278 * Check if the attributes being changing require deauthentication
1279 * from the currently associated infrastructure access point.
1280 */
aa21c004
DW		 1281 if (priv->mode == IW_MODE_INFRA) {
1282 if (should_deauth_infrastructure(priv, assoc_req)) {
191bb40e
DW		 1283 ret = lbs_cmd_80211_deauthenticate(priv,
1284 priv->curbssparams.bssid,
1285 WLAN_REASON_DEAUTH_LEAVING);
876c9d3a 1286 if (ret) {
9012b28a 1287 lbs_deb_assoc("Deauthentication due to new "
876c9d3a
MT		 1288 "configuration request failed: %d\n",
1289 ret);
1290 }
1291 }
aa21c004
DW		 1292 } else if (priv->mode == IW_MODE_ADHOC) {
1293 if (should_stop_adhoc(priv, assoc_req)) {
f5fe1fda 1294 ret = lbs_adhoc_stop(priv);
876c9d3a 1295 if (ret) {
9012b28a 1296 lbs_deb_assoc("Teardown of AdHoc network due to "
876c9d3a
MT		 1297 "new configuration request failed: %d\n",
1298 ret);
1299 }
1300
1301 }
1302 }
1303
1304 /* Send the various configuration bits to the firmware */
1305 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1306 ret = assoc_helper_mode(priv, assoc_req);
0765af44 1307 if (ret)
876c9d3a 1308 goto out;
876c9d3a
MT		 1309 }
1310
ef9a264b
DW		 1311 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1312 ret = assoc_helper_channel(priv, assoc_req);
0765af44 1313 if (ret)
ef9a264b 1314 goto out;
ef9a264b
DW		 1315 }
1316
876c9d3a
MT		 1317 if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
1318 || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
1319 ret = assoc_helper_wep_keys(priv, assoc_req);
0765af44 1320 if (ret)
876c9d3a 1321 goto out;
876c9d3a
MT		 1322 }
1323
1324 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1325 ret = assoc_helper_secinfo(priv, assoc_req);
0765af44 1326 if (ret)
876c9d3a 1327 goto out;
876c9d3a
MT		 1328 }
1329
1330 if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1331 ret = assoc_helper_wpa_ie(priv, assoc_req);
0765af44 1332 if (ret)
876c9d3a 1333 goto out;
876c9d3a
MT		 1334 }
1335
1336 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
1337 || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1338 ret = assoc_helper_wpa_keys(priv, assoc_req);
0765af44 1339 if (ret)
876c9d3a 1340 goto out;
876c9d3a
MT		 1341 }
1342
1343 /* SSID/BSSID should be the _last_ config option set, because they
1344 * trigger the association attempt.
1345 */
1346 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
1347 || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1348 int success = 1;
1349
1350 ret = assoc_helper_associate(priv, assoc_req);
1351 if (ret) {
91843463 1352 lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
876c9d3a
MT		 1353 ret);
1354 success = 0;
1355 }
1356
aa21c004 1357 if (priv->connect_status != LBS_CONNECTED) {
91843463
HS		 1358 lbs_deb_assoc("ASSOC: association unsuccessful, "
1359 "not connected\n");
876c9d3a
MT		 1360 success = 0;
1361 }
1362
1363 if (success) {
52507c20 1364 lbs_deb_assoc("associated to %s\n",
aa21c004 1365 print_mac(mac, priv->curbssparams.bssid));
10078321 1366 lbs_prepare_and_send_command(priv,
0aef64d7
DW		 1367 CMD_802_11_RSSI,
1368 0, CMD_OPTION_WAITFORRSP, 0, NULL);
876c9d3a 1369 } else {
876c9d3a
MT		 1370 ret = -1;
1371 }
1372 }
1373
1374out:
1375 if (ret) {
9012b28a 1376 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
876c9d3a
MT		 1377 ret);
1378 }
e76850d6 1379
aa21c004
DW		 1380 mutex_lock(&priv->lock);
1381 priv->in_progress_assoc_req = NULL;
1382 mutex_unlock(&priv->lock);
876c9d3a 1383 kfree(assoc_req);
9012b28a
HS		 1384
1385done:
1386 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 1387}
1388
1389
1390/*
1391 * Caller MUST hold any necessary locks
1392 */
aa21c004 1393struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
876c9d3a
MT		 1394{
1395 struct assoc_request * assoc_req;
1396
0765af44 1397 lbs_deb_enter(LBS_DEB_ASSOC);
aa21c004
DW		 1398 if (!priv->pending_assoc_req) {
1399 priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
e76850d6 1400 GFP_KERNEL);
aa21c004 1401 if (!priv->pending_assoc_req) {
876c9d3a
MT		 1402 lbs_pr_info("Not enough memory to allocate association"
1403 " request!\n");
1404 return NULL;
1405 }
1406 }
1407
1408 /* Copy current configuration attributes to the association request,
1409 * but don't overwrite any that are already set.
1410 */
aa21c004 1411 assoc_req = priv->pending_assoc_req;
876c9d3a 1412 if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
aa21c004 1413 memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
d8efea25 1414 IW_ESSID_MAX_SIZE);
aa21c004 1415 assoc_req->ssid_len = priv->curbssparams.ssid_len;
876c9d3a
MT		 1416 }
1417
1418 if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
aa21c004 1419 assoc_req->channel = priv->curbssparams.channel;
876c9d3a 1420
e76850d6 1421 if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
aa21c004 1422 assoc_req->band = priv->curbssparams.band;
e76850d6 1423
876c9d3a 1424 if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
aa21c004 1425 assoc_req->mode = priv->mode;
876c9d3a
MT		 1426
1427 if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
aa21c004 1428 memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
876c9d3a
MT		 1429 ETH_ALEN);
1430 }
1431
1432 if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
1433 int i;
1434 for (i = 0; i < 4; i++) {
aa21c004 1435 memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
1443b653 1436 sizeof(struct enc_key));
876c9d3a
MT		 1437 }
1438 }
1439
1440 if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
aa21c004 1441 assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
876c9d3a
MT		 1442
1443 if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
aa21c004 1444 memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
1443b653 1445 sizeof(struct enc_key));
876c9d3a
MT		 1446 }
1447
1448 if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
aa21c004 1449 memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
1443b653 1450 sizeof(struct enc_key));
876c9d3a
MT		 1451 }
1452
1453 if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
aa21c004 1454 memcpy(&assoc_req->secinfo, &priv->secinfo,
10078321 1455 sizeof(struct lbs_802_11_security));
876c9d3a
MT		 1456 }
1457
1458 if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
aa21c004 1459 memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
876c9d3a 1460 MAX_WPA_IE_LEN);
aa21c004 1461 assoc_req->wpa_ie_len = priv->wpa_ie_len;
876c9d3a
MT		 1462 }
1463
0765af44 1464 lbs_deb_leave(LBS_DEB_ASSOC);
876c9d3a
MT		 1465 return assoc_req;
1466}
697900ac
HS		 1467
1468
697900ac
HS		 1469/**
1470 * @brief This function prepares command of authenticate.
1471 *
1472 * @param priv A pointer to struct lbs_private structure
1473 * @param cmd A pointer to cmd_ds_command structure
1474 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
1475 *
1476 * @return 0 or -1
1477 */
1478int lbs_cmd_80211_authenticate(struct lbs_private *priv,
1479 struct cmd_ds_command *cmd,
1480 void *pdata_buf)
1481{
1482 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
1483 int ret = -1;
1484 u8 *bssid = pdata_buf;
1485 DECLARE_MAC_BUF(mac);
1486
1487 lbs_deb_enter(LBS_DEB_JOIN);
1488
1489 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
1490 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
1491 + S_DS_GEN);
1492
1493 /* translate auth mode to 802.11 defined wire value */
1494 switch (priv->secinfo.auth_mode) {
1495 case IW_AUTH_ALG_OPEN_SYSTEM:
1496 pauthenticate->authtype = 0x00;
1497 break;
1498 case IW_AUTH_ALG_SHARED_KEY:
1499 pauthenticate->authtype = 0x01;
1500 break;
1501 case IW_AUTH_ALG_LEAP:
1502 pauthenticate->authtype = 0x80;
1503 break;
1504 default:
1505 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
1506 priv->secinfo.auth_mode);
1507 goto out;
1508 }
1509
1510 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
1511
1512 lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
1513 print_mac(mac, bssid), pauthenticate->authtype);
1514 ret = 0;
1515
1516out:
1517 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1518 return ret;
1519}
1520
191bb40e
DW		 1521/**
1522 * @brief Deauthenticate from a specific BSS
1523 *
1524 * @param priv A pointer to struct lbs_private structure
1525 * @param bssid The specific BSS to deauthenticate from
1526 * @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating
1527 *
1528 * @return 0 on success, error on failure
1529 */
1530int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN],
1531 u16 reason)
697900ac 1532{
191bb40e
DW		 1533 struct cmd_ds_802_11_deauthenticate cmd;
1534 int ret;
697900ac
HS		 1535
1536 lbs_deb_enter(LBS_DEB_JOIN);
1537
191bb40e
DW		 1538 memset(&cmd, 0, sizeof(cmd));
1539 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1540 memcpy(cmd.macaddr, &bssid[0], ETH_ALEN);
1541 cmd.reasoncode = cpu_to_le16(reason);
697900ac 1542
191bb40e 1543 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
697900ac 1544
191bb40e
DW		 1545 /* Clean up everything even if there was an error; can't assume that
1546 * we're still authenticated to the AP after trying to deauth.
1547 */
1548 lbs_mac_event_disconnected(priv);
697900ac
HS		 1549
1550 lbs_deb_leave(LBS_DEB_JOIN);
191bb40e 1551 return ret;
697900ac
HS		 1552}
1553
1554int lbs_cmd_80211_associate(struct lbs_private *priv,
1555 struct cmd_ds_command *cmd, void *pdata_buf)
1556{
1557 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
1558 int ret = 0;
1559 struct assoc_request *assoc_req = pdata_buf;
1560 struct bss_descriptor *bss = &assoc_req->bss;
1561 u8 *pos;
1562 u16 tmpcap, tmplen;
1563 struct mrvlietypes_ssidparamset *ssid;
1564 struct mrvlietypes_phyparamset *phy;
1565 struct mrvlietypes_ssparamset *ss;
1566 struct mrvlietypes_ratesparamset *rates;
1567 struct mrvlietypes_rsnparamset *rsn;
1568
1569 lbs_deb_enter(LBS_DEB_ASSOC);
1570
1571 pos = (u8 *) passo;
1572
1573 if (!priv) {
1574 ret = -1;
1575 goto done;
1576 }
1577
1578 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1579
1580 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
1581 pos += sizeof(passo->peerstaaddr);
1582
1583 /* set the listen interval */
1584 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1585
1586 pos += sizeof(passo->capability);
1587 pos += sizeof(passo->listeninterval);
1588 pos += sizeof(passo->bcnperiod);
1589 pos += sizeof(passo->dtimperiod);
1590
1591 ssid = (struct mrvlietypes_ssidparamset *) pos;
1592 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
1593 tmplen = bss->ssid_len;
1594 ssid->header.len = cpu_to_le16(tmplen);
1595 memcpy(ssid->ssid, bss->ssid, tmplen);
1596 pos += sizeof(ssid->header) + tmplen;
1597
1598 phy = (struct mrvlietypes_phyparamset *) pos;
1599 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
1600 tmplen = sizeof(phy->fh_ds.dsparamset);
1601 phy->header.len = cpu_to_le16(tmplen);
1602 memcpy(&phy->fh_ds.dsparamset,
1603 &bss->phyparamset.dsparamset.currentchan,
1604 tmplen);
1605 pos += sizeof(phy->header) + tmplen;
1606
1607 ss = (struct mrvlietypes_ssparamset *) pos;
1608 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
1609 tmplen = sizeof(ss->cf_ibss.cfparamset);
1610 ss->header.len = cpu_to_le16(tmplen);
1611 pos += sizeof(ss->header) + tmplen;
1612
1613 rates = (struct mrvlietypes_ratesparamset *) pos;
1614 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
1615 memcpy(&rates->rates, &bss->rates, MAX_RATES);
1616 tmplen = MAX_RATES;
1617 if (get_common_rates(priv, rates->rates, &tmplen)) {
1618 ret = -1;
1619 goto done;
1620 }
1621 pos += sizeof(rates->header) + tmplen;
1622 rates->header.len = cpu_to_le16(tmplen);
1623 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
1624
1625 /* Copy the infra. association rates into Current BSS state structure */
1626 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1627 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
1628
1629 /* Set MSB on basic rates as the firmware requires, but _after_
1630 * copying to current bss rates.
1631 */
1632 lbs_set_basic_rate_flags(rates->rates, tmplen);
1633
1634 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1635 rsn = (struct mrvlietypes_rsnparamset *) pos;
1636 /* WPA_IE or WPA2_IE */
1637 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
1638 tmplen = (u16) assoc_req->wpa_ie[1];
1639 rsn->header.len = cpu_to_le16(tmplen);
1640 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
1641 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
1642 sizeof(rsn->header) + tmplen);
1643 pos += sizeof(rsn->header) + tmplen;
1644 }
1645
1646 /* update curbssparams */
1647 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
1648
1649 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1650 ret = -1;
1651 goto done;
1652 }
1653
1654 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
1655
1656 /* set the capability info */
1657 tmpcap = (bss->capability & CAPINFO_MASK);
1658 if (bss->mode == IW_MODE_INFRA)
1659 tmpcap |= WLAN_CAPABILITY_ESS;
1660 passo->capability = cpu_to_le16(tmpcap);
1661 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
1662
1663done:
1664 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1665 return ret;
1666}
1667
697900ac
HS		 1668int lbs_ret_80211_associate(struct lbs_private *priv,
1669 struct cmd_ds_command *resp)
1670{
1671 int ret = 0;
1672 union iwreq_data wrqu;
1673 struct ieeetypes_assocrsp *passocrsp;
1674 struct bss_descriptor *bss;
1675 u16 status_code;
1676
1677 lbs_deb_enter(LBS_DEB_ASSOC);
1678
1679 if (!priv->in_progress_assoc_req) {
1680 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
1681 ret = -1;
1682 goto done;
1683 }
1684 bss = &priv->in_progress_assoc_req->bss;
1685
1686 passocrsp = (struct ieeetypes_assocrsp *) &resp->params;
1687
1688 /*
1689 * Older FW versions map the IEEE 802.11 Status Code in the association
1690 * response to the following values returned in passocrsp->statuscode:
1691 *
1692 * IEEE Status Code Marvell Status Code
1693 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1694 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1695 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1696 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1697 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1698 * others -> 0x0003 ASSOC_RESULT_REFUSED
1699 *
1700 * Other response codes:
1701 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1702 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1703 * association response from the AP)
1704 */
1705
1706 status_code = le16_to_cpu(passocrsp->statuscode);
1707 switch (status_code) {
1708 case 0x00:
1709 break;
1710 case 0x01:
1711 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
1712 break;
1713 case 0x02:
1714 lbs_deb_assoc("ASSOC_RESP: internal timer "
1715 "expired while waiting for the AP\n");
1716 break;
1717 case 0x03:
1718 lbs_deb_assoc("ASSOC_RESP: association "
1719 "refused by AP\n");
1720 break;
1721 case 0x04:
1722 lbs_deb_assoc("ASSOC_RESP: authentication "
1723 "refused by AP\n");
1724 break;
1725 default:
1726 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
1727 " unknown\n", status_code);
1728 break;
1729 }
1730
1731 if (status_code) {
1732 lbs_mac_event_disconnected(priv);
1733 ret = -1;
1734 goto done;
1735 }
1736
1737 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
1738 le16_to_cpu(resp->size) - S_DS_GEN);
1739
1740 /* Send a Media Connected event, according to the Spec */
1741 priv->connect_status = LBS_CONNECTED;
1742
1743 /* Update current SSID and BSSID */
1744 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1745 priv->curbssparams.ssid_len = bss->ssid_len;
1746 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1747
1748 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
1749 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
1750
1751 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
1752 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
1753 priv->nextSNRNF = 0;
1754 priv->numSNRNF = 0;
1755
1756 netif_carrier_on(priv->dev);
1757 if (!priv->tx_pending_len)
1758 netif_wake_queue(priv->dev);
1759
1760 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1761 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1762 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1763
1764done:
1765 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1766 return ret;
1767}
1768
f5fe1fda 1769static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp)
697900ac
HS		 1770{
1771 int ret = 0;
1772 u16 command = le16_to_cpu(resp->command);
1773 u16 result = le16_to_cpu(resp->result);
f5fe1fda 1774 struct cmd_ds_802_11_ad_hoc_result *adhoc_resp;
697900ac
HS		 1775 union iwreq_data wrqu;
1776 struct bss_descriptor *bss;
1777 DECLARE_MAC_BUF(mac);
1778
1779 lbs_deb_enter(LBS_DEB_JOIN);
1780
f5fe1fda 1781 adhoc_resp = (struct cmd_ds_802_11_ad_hoc_result *) resp;
697900ac
HS		 1782
1783 if (!priv->in_progress_assoc_req) {
1784 lbs_deb_join("ADHOC_RESP: no in-progress association "
1785 "request\n");
1786 ret = -1;
1787 goto done;
1788 }
1789 bss = &priv->in_progress_assoc_req->bss;
1790
1791 /*
1792 * Join result code 0 --> SUCCESS
1793 */
1794 if (result) {
f5fe1fda 1795 lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result);
697900ac
HS		 1796 if (priv->connect_status == LBS_CONNECTED)
1797 lbs_mac_event_disconnected(priv);
1798 ret = -1;
1799 goto done;
1800 }
1801
697900ac
HS		 1802 /* Send a Media Connected event, according to the Spec */
1803 priv->connect_status = LBS_CONNECTED;
1804
1805 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
1806 /* Update the created network descriptor with the new BSSID */
f5fe1fda 1807 memcpy(bss->bssid, adhoc_resp->bssid, ETH_ALEN);
697900ac
HS		 1808 }
1809
1810 /* Set the BSSID from the joined/started descriptor */
1811 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1812
1813 /* Set the new SSID to current SSID */
1814 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1815 priv->curbssparams.ssid_len = bss->ssid_len;
1816
1817 netif_carrier_on(priv->dev);
1818 if (!priv->tx_pending_len)
1819 netif_wake_queue(priv->dev);
1820
1821 memset(&wrqu, 0, sizeof(wrqu));
1822 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1823 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1824 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1825
f5fe1fda
DW		 1826 lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %s, channel %d\n",
1827 escape_essid(bss->ssid, bss->ssid_len),
1828 print_mac(mac, priv->curbssparams.bssid),
1829 priv->curbssparams.channel);
697900ac
HS		 1830
1831done:
1832 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1833 return ret;
1834}
1835
Linux kernel - Deliverables
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