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[PATCH] libertas: better descriptions for association errors
[linux-2.6/sactl.git] / drivers / net / wireless / libertas / join.c
blobce49d3f25613b78e859ae3178306df612679b3e6
1 /**
2 * Functions implementing wlan infrastructure and adhoc join routines,
3 * IOCTL handlers as well as command preperation and response routines
4 * for sending adhoc start, adhoc join, and association commands
5 * to the firmware.
6 */
7 #include <linux/netdevice.h>
8 #include <linux/if_arp.h>
9 #include <linux/wireless.h>
10 #include <linux/etherdevice.h>
11
12 #include <net/iw_handler.h>
13
14 #include "host.h"
15 #include "decl.h"
16 #include "join.h"
17 #include "dev.h"
18 #include "assoc.h"
19
20 /* Supported rates for ad-hoc B mode */
21 static u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
22
23 /* The firmware needs certain bits masked out of the beacon-derviced capability
24 * field when associating/joining to BSSs.
25 */
26 #define CAPINFO_MASK (~(0xda00))
27
28 /**
29 * @brief This function finds common rates between rate1 and card rates.
30 *
31 * It will fill common rates in rate1 as output if found.
32 *
33 * NOTE: Setting the MSB of the basic rates need to be taken
34 * care, either before or after calling this function
35 *
36 * @param adapter A pointer to wlan_adapter structure
37 * @param rate1 the buffer which keeps input and output
38 * @param rate1_size the size of rate1 buffer; new size of buffer on return
39 *
40 * @return 0 or -1
41 */
42 static int get_common_rates(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
43 {
44 u8 *card_rates = libertas_bg_rates;
45 size_t num_card_rates = sizeof(libertas_bg_rates);
46 int ret = 0, i, j;
47 u8 tmp[30];
48 size_t tmp_size = 0;
49
50 /* For each rate in card_rates that exists in rate1, copy to tmp */
51 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
52 for (j = 0; rates[j] && (j < *rates_size); j++) {
53 if (rates[j] == card_rates[i])
54 tmp[tmp_size++] = card_rates[i];
55 }
56 }
57
58 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
59 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
60 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
61 lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
62
63 if (!adapter->auto_rate) {
64 for (i = 0; i < tmp_size; i++) {
65 if (tmp[i] == adapter->cur_rate)
66 goto done;
67 }
68 lbs_pr_alert("Previously set fixed data rate %#x isn't "
69 "compatible with the network.\n", adapter->cur_rate);
70 ret = -1;
71 goto done;
72 }
73 ret = 0;
74
75 done:
76 memset(rates, 0, *rates_size);
77 *rates_size = min_t(int, tmp_size, *rates_size);
78 memcpy(rates, tmp, *rates_size);
79 return ret;
80 }
81
82
83 /**
84 * @brief Sets the MSB on basic rates as the firmware requires
85 *
86 * Scan through an array and set the MSB for basic data rates.
87 *
88 * @param rates buffer of data rates
89 * @param len size of buffer
90 */
91 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
92 {
93 int i;
94
95 for (i = 0; i < len; i++) {
96 if (rates[i] == 0x02 || rates[i] == 0x04 ||
97 rates[i] == 0x0b || rates[i] == 0x16)
98 rates[i] |= 0x80;
99 }
100 }
101
102 /**
103 * @brief Unsets the MSB on basic rates
104 *
105 * Scan through an array and unset the MSB for basic data rates.
106 *
107 * @param rates buffer of data rates
108 * @param len size of buffer
109 */
110 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
111 {
112 int i;
113
114 for (i = 0; i < len; i++)
115 rates[i] &= 0x7f;
116 }
117
118
119 /**
120 * @brief Associate to a specific BSS discovered in a scan
121 *
122 * @param priv A pointer to wlan_private structure
123 * @param pbssdesc Pointer to the BSS descriptor to associate with.
124 *
125 * @return 0-success, otherwise fail
126 */
127 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
128 {
129 wlan_adapter *adapter = priv->adapter;
130 int ret;
131
132 lbs_deb_enter(LBS_DEB_JOIN);
133
134 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
135 0, CMD_OPTION_WAITFORRSP,
136 0, assoc_req->bss.bssid);
137
138 if (ret)
139 goto done;
140
141 /* set preamble to firmware */
142 if ( (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
143 && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
144 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
145 else
146 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
147
148 libertas_set_radio_control(priv);
149
150 ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
151 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
152
153 done:
154 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
155 return ret;
156 }
157
158 /**
159 * @brief Start an Adhoc Network
160 *
161 * @param priv A pointer to wlan_private structure
162 * @param adhocssid The ssid of the Adhoc Network
163 * @return 0--success, -1--fail
164 */
165 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
166 {
167 wlan_adapter *adapter = priv->adapter;
168 int ret = 0;
169
170 adapter->adhoccreate = 1;
171
172 if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
173 lbs_deb_join("AdhocStart: Short preamble\n");
174 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
175 } else {
176 lbs_deb_join("AdhocStart: Long preamble\n");
177 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
178 }
179
180 libertas_set_radio_control(priv);
181
182 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
183 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
184
185 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
186 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
187
188 return ret;
189 }
190
191 /**
192 * @brief Join an adhoc network found in a previous scan
193 *
194 * @param priv A pointer to wlan_private structure
195 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
196 * to attempt to join
197 *
198 * @return 0--success, -1--fail
199 */
200 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
201 {
202 wlan_adapter *adapter = priv->adapter;
203 struct bss_descriptor * bss = &assoc_req->bss;
204 int ret = 0;
205
206 lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
207 __func__,
208 escape_essid(adapter->curbssparams.ssid,
209 adapter->curbssparams.ssid_len),
210 adapter->curbssparams.ssid_len);
211 lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
212 __func__, escape_essid(bss->ssid, bss->ssid_len),
213 bss->ssid_len);
214
215 /* check if the requested SSID is already joined */
216 if ( adapter->curbssparams.ssid_len
217 && !libertas_ssid_cmp(adapter->curbssparams.ssid,
218 adapter->curbssparams.ssid_len,
219 bss->ssid, bss->ssid_len)
220 && (adapter->mode == IW_MODE_ADHOC)
221 && (adapter->connect_status == LIBERTAS_CONNECTED)) {
222 union iwreq_data wrqu;
223
224 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
225 "current, not attempting to re-join");
226
227 /* Send the re-association event though, because the association
228 * request really was successful, even if just a null-op.
229 */
230 memset(&wrqu, 0, sizeof(wrqu));
231 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid,
232 ETH_ALEN);
233 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
234 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
235 goto out;
236 }
237
238 /* Use shortpreamble only when both creator and card supports
239 short preamble */
240 if ( !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
241 || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
242 lbs_deb_join("AdhocJoin: Long preamble\n");
243 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
244 } else {
245 lbs_deb_join("AdhocJoin: Short preamble\n");
246 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
247 }
248
249 libertas_set_radio_control(priv);
250
251 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
252 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
253
254 adapter->adhoccreate = 0;
255
256 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
257 0, CMD_OPTION_WAITFORRSP,
258 OID_802_11_SSID, assoc_req);
259
260 out:
261 return ret;
262 }
263
264 int libertas_stop_adhoc_network(wlan_private * priv)
265 {
266 return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
267 0, CMD_OPTION_WAITFORRSP, 0, NULL);
268 }
269
270 /**
271 * @brief Send Deauthentication Request
272 *
273 * @param priv A pointer to wlan_private structure
274 * @return 0--success, -1--fail
275 */
276 int libertas_send_deauthentication(wlan_private * priv)
277 {
278 return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
279 0, CMD_OPTION_WAITFORRSP, 0, NULL);
280 }
281
282 /**
283 * @brief This function prepares command of authenticate.
284 *
285 * @param priv A pointer to wlan_private structure
286 * @param cmd A pointer to cmd_ds_command structure
287 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
288 *
289 * @return 0 or -1
290 */
291 int libertas_cmd_80211_authenticate(wlan_private * priv,
292 struct cmd_ds_command *cmd,
293 void *pdata_buf)
294 {
295 wlan_adapter *adapter = priv->adapter;
296 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
297 int ret = -1;
298 u8 *bssid = pdata_buf;
299
300 lbs_deb_enter(LBS_DEB_JOIN);
301
302 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
303 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
304 + S_DS_GEN);
305
306 /* translate auth mode to 802.11 defined wire value */
307 switch (adapter->secinfo.auth_mode) {
308 case IW_AUTH_ALG_OPEN_SYSTEM:
309 pauthenticate->authtype = 0x00;
310 break;
311 case IW_AUTH_ALG_SHARED_KEY:
312 pauthenticate->authtype = 0x01;
313 break;
314 case IW_AUTH_ALG_LEAP:
315 pauthenticate->authtype = 0x80;
316 break;
317 default:
318 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
319 adapter->secinfo.auth_mode);
320 goto out;
321 }
322
323 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
324
325 lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
326 MAC_ARG(bssid), pauthenticate->authtype);
327 ret = 0;
328
329 out:
330 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
331 return ret;
332 }
333
334 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
335 struct cmd_ds_command *cmd)
336 {
337 wlan_adapter *adapter = priv->adapter;
338 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
339
340 lbs_deb_enter(LBS_DEB_JOIN);
341
342 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
343 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
344 S_DS_GEN);
345
346 /* set AP MAC address */
347 memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
348
349 /* Reason code 3 = Station is leaving */
350 #define REASON_CODE_STA_LEAVING 3
351 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
352
353 lbs_deb_leave(LBS_DEB_JOIN);
354 return 0;
355 }
356
357 int libertas_cmd_80211_associate(wlan_private * priv,
358 struct cmd_ds_command *cmd, void *pdata_buf)
359 {
360 wlan_adapter *adapter = priv->adapter;
361 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
362 int ret = 0;
363 struct assoc_request * assoc_req = pdata_buf;
364 struct bss_descriptor * bss = &assoc_req->bss;
365 u8 *pos;
366 u16 tmpcap, tmplen;
367 struct mrvlietypes_ssidparamset *ssid;
368 struct mrvlietypes_phyparamset *phy;
369 struct mrvlietypes_ssparamset *ss;
370 struct mrvlietypes_ratesparamset *rates;
371 struct mrvlietypes_rsnparamset *rsn;
372
373 lbs_deb_enter(LBS_DEB_JOIN);
374
375 pos = (u8 *) passo;
376
377 if (!adapter) {
378 ret = -1;
379 goto done;
380 }
381
382 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
383
384 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
385 pos += sizeof(passo->peerstaaddr);
386
387 /* set the listen interval */
388 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
389
390 pos += sizeof(passo->capability);
391 pos += sizeof(passo->listeninterval);
392 pos += sizeof(passo->bcnperiod);
393 pos += sizeof(passo->dtimperiod);
394
395 ssid = (struct mrvlietypes_ssidparamset *) pos;
396 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
397 tmplen = bss->ssid_len;
398 ssid->header.len = cpu_to_le16(tmplen);
399 memcpy(ssid->ssid, bss->ssid, tmplen);
400 pos += sizeof(ssid->header) + tmplen;
401
402 phy = (struct mrvlietypes_phyparamset *) pos;
403 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
404 tmplen = sizeof(phy->fh_ds.dsparamset);
405 phy->header.len = cpu_to_le16(tmplen);
406 memcpy(&phy->fh_ds.dsparamset,
407 &bss->phyparamset.dsparamset.currentchan,
408 tmplen);
409 pos += sizeof(phy->header) + tmplen;
410
411 ss = (struct mrvlietypes_ssparamset *) pos;
412 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
413 tmplen = sizeof(ss->cf_ibss.cfparamset);
414 ss->header.len = cpu_to_le16(tmplen);
415 pos += sizeof(ss->header) + tmplen;
416
417 rates = (struct mrvlietypes_ratesparamset *) pos;
418 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
419 memcpy(&rates->rates, &bss->rates, MAX_RATES);
420 tmplen = MAX_RATES;
421 if (get_common_rates(adapter, rates->rates, &tmplen)) {
422 ret = -1;
423 goto done;
424 }
425 pos += sizeof(rates->header) + tmplen;
426 rates->header.len = cpu_to_le16(tmplen);
427 lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
428
429 /* Copy the infra. association rates into Current BSS state structure */
430 memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
431 memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
432
433 /* Set MSB on basic rates as the firmware requires, but _after_
434 * copying to current bss rates.
435 */
436 libertas_set_basic_rate_flags(rates->rates, tmplen);
437
438 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
439 rsn = (struct mrvlietypes_rsnparamset *) pos;
440 /* WPA_IE or WPA2_IE */
441 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
442 tmplen = (u16) assoc_req->wpa_ie[1];
443 rsn->header.len = cpu_to_le16(tmplen);
444 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
445 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
446 sizeof(rsn->header) + tmplen);
447 pos += sizeof(rsn->header) + tmplen;
448 }
449
450 /* update curbssparams */
451 adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
452
453 if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
454 ret = -1;
455 goto done;
456 }
457
458 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
459
460 /* set the capability info */
461 tmpcap = (bss->capability & CAPINFO_MASK);
462 if (bss->mode == IW_MODE_INFRA)
463 tmpcap |= WLAN_CAPABILITY_ESS;
464 passo->capability = cpu_to_le16(tmpcap);
465 lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
466 tmpcap, CAPINFO_MASK);
467
468 done:
469 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
470 return ret;
471 }
472
473 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
474 struct cmd_ds_command *cmd, void *pdata_buf)
475 {
476 wlan_adapter *adapter = priv->adapter;
477 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
478 int ret = 0;
479 int cmdappendsize = 0;
480 struct assoc_request * assoc_req = pdata_buf;
481 u16 tmpcap = 0;
482 size_t ratesize = 0;
483
484 lbs_deb_enter(LBS_DEB_JOIN);
485
486 if (!adapter) {
487 ret = -1;
488 goto done;
489 }
490
491 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
492
493 /*
494 * Fill in the parameters for 2 data structures:
495 * 1. cmd_ds_802_11_ad_hoc_start command
496 * 2. adapter->scantable[i]
497 *
498 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
499 * probe delay, and cap info.
500 *
501 * Firmware will fill up beacon period, DTIM, Basic rates
502 * and operational rates.
503 */
504
505 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
506 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
507
508 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
509 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
510 assoc_req->ssid_len);
511
512 /* set the BSS type */
513 adhs->bsstype = CMD_BSS_TYPE_IBSS;
514 adapter->mode = IW_MODE_ADHOC;
515 adhs->beaconperiod = cpu_to_le16(MRVDRV_BEACON_INTERVAL);
516
517 /* set Physical param set */
518 #define DS_PARA_IE_ID 3
519 #define DS_PARA_IE_LEN 1
520
521 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
522 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
523
524 WARN_ON(!assoc_req->channel);
525
526 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
527 assoc_req->channel);
528
529 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
530
531 /* set IBSS param set */
532 #define IBSS_PARA_IE_ID 6
533 #define IBSS_PARA_IE_LEN 2
534
535 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
536 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
537 adhs->ssparamset.ibssparamset.atimwindow = 0;
538
539 /* set capability info */
540 tmpcap = WLAN_CAPABILITY_IBSS;
541 if (assoc_req->secinfo.wep_enabled) {
542 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
543 tmpcap |= WLAN_CAPABILITY_PRIVACY;
544 } else {
545 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
546 }
547 adhs->capability = cpu_to_le16(tmpcap);
548
549 /* probedelay */
550 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
551
552 memset(adhs->rates, 0, sizeof(adhs->rates));
553 ratesize = min(sizeof(adhs->rates), sizeof(adhoc_rates_b));
554 memcpy(adhs->rates, adhoc_rates_b, ratesize);
555
556 /* Copy the ad-hoc creating rates into Current BSS state structure */
557 memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
558 memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
559
560 /* Set MSB on basic rates as the firmware requires, but _after_
561 * copying to current bss rates.
562 */
563 libertas_set_basic_rate_flags(adhs->rates, ratesize);
564
565 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
566 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
567
568 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
569
570 if (libertas_create_dnld_countryinfo_11d(priv)) {
571 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
572 ret = -1;
573 goto done;
574 }
575
576 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
577 S_DS_GEN + cmdappendsize);
578
579 ret = 0;
580 done:
581 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
582 return ret;
583 }
584
585 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
586 struct cmd_ds_command *cmd)
587 {
588 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
589 cmd->size = cpu_to_le16(S_DS_GEN);
590
591 return 0;
592 }
593
594 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
595 struct cmd_ds_command *cmd, void *pdata_buf)
596 {
597 wlan_adapter *adapter = priv->adapter;
598 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
599 struct assoc_request * assoc_req = pdata_buf;
600 struct bss_descriptor *bss = &assoc_req->bss;
601 int cmdappendsize = 0;
602 int ret = 0;
603 u16 ratesize = 0;
604
605 lbs_deb_enter(LBS_DEB_JOIN);
606
607 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
608
609 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
610 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
611
612 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
613 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
614
615 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
616 sizeof(union ieeetypes_phyparamset));
617
618 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
619 sizeof(union IEEEtypes_ssparamset));
620
621 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
622 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
623 bss->capability, CAPINFO_MASK);
624
625 /* information on BSSID descriptor passed to FW */
626 lbs_deb_join(
627 "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
628 MAC_ARG(join_cmd->bss.bssid), join_cmd->bss.ssid);
629
630 /* failtimeout */
631 join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
632
633 /* probedelay */
634 join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
635
636 adapter->curbssparams.channel = bss->channel;
637
638 /* Copy Data rates from the rates recorded in scan response */
639 memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
640 ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
641 memcpy(join_cmd->bss.rates, bss->rates, ratesize);
642 if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
643 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
644 ret = -1;
645 goto done;
646 }
647
648 /* Copy the ad-hoc creating rates into Current BSS state structure */
649 memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
650 memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
651
652 /* Set MSB on basic rates as the firmware requires, but _after_
653 * copying to current bss rates.
654 */
655 libertas_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
656
657 join_cmd->bss.ssparamset.ibssparamset.atimwindow =
658 cpu_to_le16(bss->atimwindow);
659
660 if (assoc_req->secinfo.wep_enabled) {
661 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
662 tmp |= WLAN_CAPABILITY_PRIVACY;
663 join_cmd->bss.capability = cpu_to_le16(tmp);
664 }
665
666 if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
667 /* wake up first */
668 __le32 Localpsmode;
669
670 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
671 ret = libertas_prepare_and_send_command(priv,
672 CMD_802_11_PS_MODE,
673 CMD_ACT_SET,
674 0, 0, &Localpsmode);
675
676 if (ret) {
677 ret = -1;
678 goto done;
679 }
680 }
681
682 if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
683 ret = -1;
684 goto done;
685 }
686
687 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
688 S_DS_GEN + cmdappendsize);
689
690 done:
691 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
692 return ret;
693 }
694
695 int libertas_ret_80211_associate(wlan_private * priv,
696 struct cmd_ds_command *resp)
697 {
698 wlan_adapter *adapter = priv->adapter;
699 int ret = 0;
700 union iwreq_data wrqu;
701 struct ieeetypes_assocrsp *passocrsp;
702 struct bss_descriptor * bss;
703 u16 status_code;
704
705 lbs_deb_enter(LBS_DEB_JOIN);
706
707 if (!adapter->in_progress_assoc_req) {
708 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
709 ret = -1;
710 goto done;
711 }
712 bss = &adapter->in_progress_assoc_req->bss;
713
714 passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
715
716 /*
717 * Older FW versions map the IEEE 802.11 Status Code in the association
718 * response to the following values returned in passocrsp->statuscode:
719 *
720 * IEEE Status Code Marvell Status Code
721 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
722 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
723 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
724 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
725 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
726 * others -> 0x0003 ASSOC_RESULT_REFUSED
727 *
728 * Other response codes:
729 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
730 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
731 * association response from the AP)
732 */
733
734 status_code = le16_to_cpu(passocrsp->statuscode);
735 switch (status_code) {
736 case 0x00:
737 lbs_deb_join("ASSOC_RESP: Association succeeded\n");
738 break;
739 case 0x01:
740 lbs_deb_join("ASSOC_RESP: Association failed; invalid "
741 "parameters (status code %d)\n", status_code);
742 break;
743 case 0x02:
744 lbs_deb_join("ASSOC_RESP: Association failed; internal timer "
745 "expired while waiting for the AP (status code %d)"
746 "\n", status_code);
747 break;
748 case 0x03:
749 lbs_deb_join("ASSOC_RESP: Association failed; association "
750 "was refused by the AP (status code %d)\n",
751 status_code);
752 break;
753 case 0x04:
754 lbs_deb_join("ASSOC_RESP: Association failed; authentication "
755 "was refused by the AP (status code %d)\n",
756 status_code);
757 break;
758 default:
759 lbs_deb_join("ASSOC_RESP: Association failed; reason unknown "
760 "(status code %d)\n", status_code);
761 break;
762 }
763
764 if (status_code) {
765 libertas_mac_event_disconnected(priv);
766 ret = -1;
767 goto done;
768 }
769
770 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_RESP", (void *)&resp->params,
771 le16_to_cpu(resp->size) - S_DS_GEN);
772
773 /* Send a Media Connected event, according to the Spec */
774 adapter->connect_status = LIBERTAS_CONNECTED;
775
776 lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
777 escape_essid(bss->ssid, bss->ssid_len));
778
779 /* Update current SSID and BSSID */
780 memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
781 adapter->curbssparams.ssid_len = bss->ssid_len;
782 memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
783
784 lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
785 adapter->currentpacketfilter);
786
787 adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
788 adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
789
790 memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
791 memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
792 adapter->nextSNRNF = 0;
793 adapter->numSNRNF = 0;
794
795 netif_carrier_on(priv->dev);
796 netif_wake_queue(priv->dev);
797
798 if (priv->mesh_dev) {
799 netif_carrier_on(priv->mesh_dev);
800 netif_wake_queue(priv->mesh_dev);
801 }
802
803 lbs_deb_join("ASSOC_RESP: Associated \n");
804
805 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
806 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
807 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
808
809 done:
810 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
811 return ret;
812 }
813
814 int libertas_ret_80211_disassociate(wlan_private * priv,
815 struct cmd_ds_command *resp)
816 {
817 lbs_deb_enter(LBS_DEB_JOIN);
818
819 libertas_mac_event_disconnected(priv);
820
821 lbs_deb_leave(LBS_DEB_JOIN);
822 return 0;
823 }
824
825 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
826 struct cmd_ds_command *resp)
827 {
828 wlan_adapter *adapter = priv->adapter;
829 int ret = 0;
830 u16 command = le16_to_cpu(resp->command);
831 u16 result = le16_to_cpu(resp->result);
832 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
833 union iwreq_data wrqu;
834 struct bss_descriptor *bss;
835
836 lbs_deb_enter(LBS_DEB_JOIN);
837
838 padhocresult = &resp->params.result;
839
840 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
841 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
842 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
843
844 if (!adapter->in_progress_assoc_req) {
845 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
846 ret = -1;
847 goto done;
848 }
849 bss = &adapter->in_progress_assoc_req->bss;
850
851 /*
852 * Join result code 0 --> SUCCESS
853 */
854 if (result) {
855 lbs_deb_join("ADHOC_RESP: failed\n");
856 if (adapter->connect_status == LIBERTAS_CONNECTED) {
857 libertas_mac_event_disconnected(priv);
858 }
859 ret = -1;
860 goto done;
861 }
862
863 /*
864 * Now the join cmd should be successful
865 * If BSSID has changed use SSID to compare instead of BSSID
866 */
867 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
868 escape_essid(bss->ssid, bss->ssid_len));
869
870 /* Send a Media Connected event, according to the Spec */
871 adapter->connect_status = LIBERTAS_CONNECTED;
872
873 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
874 /* Update the created network descriptor with the new BSSID */
875 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
876 }
877
878 /* Set the BSSID from the joined/started descriptor */
879 memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
880
881 /* Set the new SSID to current SSID */
882 memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
883 adapter->curbssparams.ssid_len = bss->ssid_len;
884
885 netif_carrier_on(priv->dev);
886 netif_wake_queue(priv->dev);
887
888 if (priv->mesh_dev) {
889 netif_carrier_on(priv->mesh_dev);
890 netif_wake_queue(priv->mesh_dev);
891 }
892
893 memset(&wrqu, 0, sizeof(wrqu));
894 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
895 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
896 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
897
898 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
899 lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
900 lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
901 MAC_ARG(padhocresult->bssid));
902
903 done:
904 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
905 return ret;
906 }
907
908 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
909 struct cmd_ds_command *resp)
910 {
911 lbs_deb_enter(LBS_DEB_JOIN);
912
913 libertas_mac_event_disconnected(priv);
914
915 lbs_deb_leave(LBS_DEB_JOIN);
916 return 0;
917 }
SocketAccessConTroL development