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Pull bugzilla-9429 into release branch
[pv_ops_mirror.git] / drivers / net / wireless / libertas / join.c
blobdc24a05c9447557d72f3443020e8e00ef0cbc701
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 /* The firmware needs certain bits masked out of the beacon-derviced capability
21 * field when associating/joining to BSSs.
22 */
23 #define CAPINFO_MASK (~(0xda00))
24
25 /**
26 * @brief This function finds common rates between rate1 and card rates.
27 *
28 * It will fill common rates in rate1 as output if found.
29 *
30 * NOTE: Setting the MSB of the basic rates need to be taken
31 * care, either before or after calling this function
32 *
33 * @param adapter A pointer to wlan_adapter structure
34 * @param rate1 the buffer which keeps input and output
35 * @param rate1_size the size of rate1 buffer; new size of buffer on return
36 *
37 * @return 0 or -1
38 */
39 static int get_common_rates(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
40 {
41 u8 *card_rates = libertas_bg_rates;
42 size_t num_card_rates = sizeof(libertas_bg_rates);
43 int ret = 0, i, j;
44 u8 tmp[30];
45 size_t tmp_size = 0;
46
47 /* For each rate in card_rates that exists in rate1, copy to tmp */
48 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
49 for (j = 0; rates[j] && (j < *rates_size); j++) {
50 if (rates[j] == card_rates[i])
51 tmp[tmp_size++] = card_rates[i];
52 }
53 }
54
55 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
56 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
57 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
58 lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
59
60 if (!adapter->auto_rate) {
61 for (i = 0; i < tmp_size; i++) {
62 if (tmp[i] == adapter->cur_rate)
63 goto done;
64 }
65 lbs_pr_alert("Previously set fixed data rate %#x isn't "
66 "compatible with the network.\n", adapter->cur_rate);
67 ret = -1;
68 goto done;
69 }
70 ret = 0;
71
72 done:
73 memset(rates, 0, *rates_size);
74 *rates_size = min_t(int, tmp_size, *rates_size);
75 memcpy(rates, tmp, *rates_size);
76 return ret;
77 }
78
79
80 /**
81 * @brief Sets the MSB on basic rates as the firmware requires
82 *
83 * Scan through an array and set the MSB for basic data rates.
84 *
85 * @param rates buffer of data rates
86 * @param len size of buffer
87 */
88 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
89 {
90 int i;
91
92 for (i = 0; i < len; i++) {
93 if (rates[i] == 0x02 || rates[i] == 0x04 ||
94 rates[i] == 0x0b || rates[i] == 0x16)
95 rates[i] |= 0x80;
96 }
97 }
98
99 /**
100 * @brief Unsets the MSB on basic rates
101 *
102 * Scan through an array and unset the MSB for basic data rates.
103 *
104 * @param rates buffer of data rates
105 * @param len size of buffer
106 */
107 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
108 {
109 int i;
110
111 for (i = 0; i < len; i++)
112 rates[i] &= 0x7f;
113 }
114
115
116 /**
117 * @brief Associate to a specific BSS discovered in a scan
118 *
119 * @param priv A pointer to wlan_private structure
120 * @param pbssdesc Pointer to the BSS descriptor to associate with.
121 *
122 * @return 0-success, otherwise fail
123 */
124 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
125 {
126 wlan_adapter *adapter = priv->adapter;
127 int ret;
128
129 lbs_deb_enter(LBS_DEB_JOIN);
130
131 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
132 0, CMD_OPTION_WAITFORRSP,
133 0, assoc_req->bss.bssid);
134
135 if (ret)
136 goto done;
137
138 /* set preamble to firmware */
139 if ( (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
140 && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
141 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
142 else
143 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
144
145 libertas_set_radio_control(priv);
146
147 ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
148 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
149
150 done:
151 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
152 return ret;
153 }
154
155 /**
156 * @brief Start an Adhoc Network
157 *
158 * @param priv A pointer to wlan_private structure
159 * @param adhocssid The ssid of the Adhoc Network
160 * @return 0--success, -1--fail
161 */
162 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
163 {
164 wlan_adapter *adapter = priv->adapter;
165 int ret = 0;
166
167 adapter->adhoccreate = 1;
168
169 if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
170 lbs_deb_join("AdhocStart: Short preamble\n");
171 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
172 } else {
173 lbs_deb_join("AdhocStart: Long preamble\n");
174 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
175 }
176
177 libertas_set_radio_control(priv);
178
179 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
180 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
181
182 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
183 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
184
185 return ret;
186 }
187
188 /**
189 * @brief Join an adhoc network found in a previous scan
190 *
191 * @param priv A pointer to wlan_private structure
192 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
193 * to attempt to join
194 *
195 * @return 0--success, -1--fail
196 */
197 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
198 {
199 wlan_adapter *adapter = priv->adapter;
200 struct bss_descriptor * bss = &assoc_req->bss;
201 int ret = 0;
202
203 lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
204 __func__,
205 escape_essid(adapter->curbssparams.ssid,
206 adapter->curbssparams.ssid_len),
207 adapter->curbssparams.ssid_len);
208 lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
209 __func__, escape_essid(bss->ssid, bss->ssid_len),
210 bss->ssid_len);
211
212 /* check if the requested SSID is already joined */
213 if ( adapter->curbssparams.ssid_len
214 && !libertas_ssid_cmp(adapter->curbssparams.ssid,
215 adapter->curbssparams.ssid_len,
216 bss->ssid, bss->ssid_len)
217 && (adapter->mode == IW_MODE_ADHOC)
218 && (adapter->connect_status == LIBERTAS_CONNECTED)) {
219 union iwreq_data wrqu;
220
221 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
222 "current, not attempting to re-join");
223
224 /* Send the re-association event though, because the association
225 * request really was successful, even if just a null-op.
226 */
227 memset(&wrqu, 0, sizeof(wrqu));
228 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid,
229 ETH_ALEN);
230 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
231 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
232 goto out;
233 }
234
235 /* Use shortpreamble only when both creator and card supports
236 short preamble */
237 if ( !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
238 || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
239 lbs_deb_join("AdhocJoin: Long preamble\n");
240 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
241 } else {
242 lbs_deb_join("AdhocJoin: Short preamble\n");
243 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
244 }
245
246 libertas_set_radio_control(priv);
247
248 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
249 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
250
251 adapter->adhoccreate = 0;
252
253 ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
254 0, CMD_OPTION_WAITFORRSP,
255 OID_802_11_SSID, assoc_req);
256
257 out:
258 return ret;
259 }
260
261 int libertas_stop_adhoc_network(wlan_private * priv)
262 {
263 return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
264 0, CMD_OPTION_WAITFORRSP, 0, NULL);
265 }
266
267 /**
268 * @brief Send Deauthentication Request
269 *
270 * @param priv A pointer to wlan_private structure
271 * @return 0--success, -1--fail
272 */
273 int libertas_send_deauthentication(wlan_private * priv)
274 {
275 return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
276 0, CMD_OPTION_WAITFORRSP, 0, NULL);
277 }
278
279 /**
280 * @brief This function prepares command of authenticate.
281 *
282 * @param priv A pointer to wlan_private structure
283 * @param cmd A pointer to cmd_ds_command structure
284 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
285 *
286 * @return 0 or -1
287 */
288 int libertas_cmd_80211_authenticate(wlan_private * priv,
289 struct cmd_ds_command *cmd,
290 void *pdata_buf)
291 {
292 wlan_adapter *adapter = priv->adapter;
293 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
294 int ret = -1;
295 u8 *bssid = pdata_buf;
296 DECLARE_MAC_BUF(mac);
297
298 lbs_deb_enter(LBS_DEB_JOIN);
299
300 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
301 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
302 + S_DS_GEN);
303
304 /* translate auth mode to 802.11 defined wire value */
305 switch (adapter->secinfo.auth_mode) {
306 case IW_AUTH_ALG_OPEN_SYSTEM:
307 pauthenticate->authtype = 0x00;
308 break;
309 case IW_AUTH_ALG_SHARED_KEY:
310 pauthenticate->authtype = 0x01;
311 break;
312 case IW_AUTH_ALG_LEAP:
313 pauthenticate->authtype = 0x80;
314 break;
315 default:
316 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
317 adapter->secinfo.auth_mode);
318 goto out;
319 }
320
321 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
322
323 lbs_deb_join("AUTH_CMD: BSSID is : %s auth=0x%X\n",
324 print_mac(mac, bssid), pauthenticate->authtype);
325 ret = 0;
326
327 out:
328 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
329 return ret;
330 }
331
332 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
333 struct cmd_ds_command *cmd)
334 {
335 wlan_adapter *adapter = priv->adapter;
336 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
337
338 lbs_deb_enter(LBS_DEB_JOIN);
339
340 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
341 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
342 S_DS_GEN);
343
344 /* set AP MAC address */
345 memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
346
347 /* Reason code 3 = Station is leaving */
348 #define REASON_CODE_STA_LEAVING 3
349 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
350
351 lbs_deb_leave(LBS_DEB_JOIN);
352 return 0;
353 }
354
355 int libertas_cmd_80211_associate(wlan_private * priv,
356 struct cmd_ds_command *cmd, void *pdata_buf)
357 {
358 wlan_adapter *adapter = priv->adapter;
359 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
360 int ret = 0;
361 struct assoc_request * assoc_req = pdata_buf;
362 struct bss_descriptor * bss = &assoc_req->bss;
363 u8 *pos;
364 u16 tmpcap, tmplen;
365 struct mrvlietypes_ssidparamset *ssid;
366 struct mrvlietypes_phyparamset *phy;
367 struct mrvlietypes_ssparamset *ss;
368 struct mrvlietypes_ratesparamset *rates;
369 struct mrvlietypes_rsnparamset *rsn;
370
371 lbs_deb_enter(LBS_DEB_JOIN);
372
373 pos = (u8 *) passo;
374
375 if (!adapter) {
376 ret = -1;
377 goto done;
378 }
379
380 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
381
382 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
383 pos += sizeof(passo->peerstaaddr);
384
385 /* set the listen interval */
386 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
387
388 pos += sizeof(passo->capability);
389 pos += sizeof(passo->listeninterval);
390 pos += sizeof(passo->bcnperiod);
391 pos += sizeof(passo->dtimperiod);
392
393 ssid = (struct mrvlietypes_ssidparamset *) pos;
394 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
395 tmplen = bss->ssid_len;
396 ssid->header.len = cpu_to_le16(tmplen);
397 memcpy(ssid->ssid, bss->ssid, tmplen);
398 pos += sizeof(ssid->header) + tmplen;
399
400 phy = (struct mrvlietypes_phyparamset *) pos;
401 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
402 tmplen = sizeof(phy->fh_ds.dsparamset);
403 phy->header.len = cpu_to_le16(tmplen);
404 memcpy(&phy->fh_ds.dsparamset,
405 &bss->phyparamset.dsparamset.currentchan,
406 tmplen);
407 pos += sizeof(phy->header) + tmplen;
408
409 ss = (struct mrvlietypes_ssparamset *) pos;
410 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
411 tmplen = sizeof(ss->cf_ibss.cfparamset);
412 ss->header.len = cpu_to_le16(tmplen);
413 pos += sizeof(ss->header) + tmplen;
414
415 rates = (struct mrvlietypes_ratesparamset *) pos;
416 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
417 memcpy(&rates->rates, &bss->rates, MAX_RATES);
418 tmplen = MAX_RATES;
419 if (get_common_rates(adapter, rates->rates, &tmplen)) {
420 ret = -1;
421 goto done;
422 }
423 pos += sizeof(rates->header) + tmplen;
424 rates->header.len = cpu_to_le16(tmplen);
425 lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
426
427 /* Copy the infra. association rates into Current BSS state structure */
428 memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
429 memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
430
431 /* Set MSB on basic rates as the firmware requires, but _after_
432 * copying to current bss rates.
433 */
434 libertas_set_basic_rate_flags(rates->rates, tmplen);
435
436 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
437 rsn = (struct mrvlietypes_rsnparamset *) pos;
438 /* WPA_IE or WPA2_IE */
439 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
440 tmplen = (u16) assoc_req->wpa_ie[1];
441 rsn->header.len = cpu_to_le16(tmplen);
442 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
443 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
444 sizeof(rsn->header) + tmplen);
445 pos += sizeof(rsn->header) + tmplen;
446 }
447
448 /* update curbssparams */
449 adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
450
451 if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
452 ret = -1;
453 goto done;
454 }
455
456 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
457
458 /* set the capability info */
459 tmpcap = (bss->capability & CAPINFO_MASK);
460 if (bss->mode == IW_MODE_INFRA)
461 tmpcap |= WLAN_CAPABILITY_ESS;
462 passo->capability = cpu_to_le16(tmpcap);
463 lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
464 tmpcap, CAPINFO_MASK);
465
466 done:
467 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
468 return ret;
469 }
470
471 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
472 struct cmd_ds_command *cmd, void *pdata_buf)
473 {
474 wlan_adapter *adapter = priv->adapter;
475 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
476 int ret = 0;
477 int cmdappendsize = 0;
478 struct assoc_request * assoc_req = pdata_buf;
479 u16 tmpcap = 0;
480 size_t ratesize = 0;
481
482 lbs_deb_enter(LBS_DEB_JOIN);
483
484 if (!adapter) {
485 ret = -1;
486 goto done;
487 }
488
489 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
490
491 /*
492 * Fill in the parameters for 2 data structures:
493 * 1. cmd_ds_802_11_ad_hoc_start command
494 * 2. adapter->scantable[i]
495 *
496 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
497 * probe delay, and cap info.
498 *
499 * Firmware will fill up beacon period, DTIM, Basic rates
500 * and operational rates.
501 */
502
503 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
504 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
505
506 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
507 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
508 assoc_req->ssid_len);
509
510 /* set the BSS type */
511 adhs->bsstype = CMD_BSS_TYPE_IBSS;
512 adapter->mode = IW_MODE_ADHOC;
513 adhs->beaconperiod = cpu_to_le16(MRVDRV_BEACON_INTERVAL);
514
515 /* set Physical param set */
516 #define DS_PARA_IE_ID 3
517 #define DS_PARA_IE_LEN 1
518
519 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
520 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
521
522 WARN_ON(!assoc_req->channel);
523
524 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
525 assoc_req->channel);
526
527 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
528
529 /* set IBSS param set */
530 #define IBSS_PARA_IE_ID 6
531 #define IBSS_PARA_IE_LEN 2
532
533 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
534 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
535 adhs->ssparamset.ibssparamset.atimwindow = 0;
536
537 /* set capability info */
538 tmpcap = WLAN_CAPABILITY_IBSS;
539 if (assoc_req->secinfo.wep_enabled) {
540 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
541 tmpcap |= WLAN_CAPABILITY_PRIVACY;
542 } else {
543 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
544 }
545 adhs->capability = cpu_to_le16(tmpcap);
546
547 /* probedelay */
548 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
549
550 memset(adhs->rates, 0, sizeof(adhs->rates));
551 ratesize = min(sizeof(adhs->rates), sizeof(libertas_bg_rates));
552 memcpy(adhs->rates, libertas_bg_rates, ratesize);
553
554 /* Copy the ad-hoc creating rates into Current BSS state structure */
555 memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
556 memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
557
558 /* Set MSB on basic rates as the firmware requires, but _after_
559 * copying to current bss rates.
560 */
561 libertas_set_basic_rate_flags(adhs->rates, ratesize);
562
563 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
564 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
565
566 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
567
568 if (libertas_create_dnld_countryinfo_11d(priv)) {
569 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
570 ret = -1;
571 goto done;
572 }
573
574 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
575 S_DS_GEN + cmdappendsize);
576
577 ret = 0;
578 done:
579 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
580 return ret;
581 }
582
583 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
584 struct cmd_ds_command *cmd)
585 {
586 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
587 cmd->size = cpu_to_le16(S_DS_GEN);
588
589 return 0;
590 }
591
592 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
593 struct cmd_ds_command *cmd, void *pdata_buf)
594 {
595 wlan_adapter *adapter = priv->adapter;
596 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
597 struct assoc_request * assoc_req = pdata_buf;
598 struct bss_descriptor *bss = &assoc_req->bss;
599 int cmdappendsize = 0;
600 int ret = 0;
601 u16 ratesize = 0;
602 DECLARE_MAC_BUF(mac);
603
604 lbs_deb_enter(LBS_DEB_JOIN);
605
606 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
607
608 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
609 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
610
611 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
612 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
613
614 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
615 sizeof(union ieeetypes_phyparamset));
616
617 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
618 sizeof(union IEEEtypes_ssparamset));
619
620 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
621 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
622 bss->capability, CAPINFO_MASK);
623
624 /* information on BSSID descriptor passed to FW */
625 lbs_deb_join(
626 "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
627 print_mac(mac, join_cmd->bss.bssid),
628 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 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
804 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
805 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
806
807 done:
808 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
809 return ret;
810 }
811
812 int libertas_ret_80211_disassociate(wlan_private * priv,
813 struct cmd_ds_command *resp)
814 {
815 lbs_deb_enter(LBS_DEB_JOIN);
816
817 libertas_mac_event_disconnected(priv);
818
819 lbs_deb_leave(LBS_DEB_JOIN);
820 return 0;
821 }
822
823 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
824 struct cmd_ds_command *resp)
825 {
826 wlan_adapter *adapter = priv->adapter;
827 int ret = 0;
828 u16 command = le16_to_cpu(resp->command);
829 u16 result = le16_to_cpu(resp->result);
830 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
831 union iwreq_data wrqu;
832 struct bss_descriptor *bss;
833 DECLARE_MAC_BUF(mac);
834
835 lbs_deb_enter(LBS_DEB_JOIN);
836
837 padhocresult = &resp->params.result;
838
839 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
840 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
841 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
842
843 if (!adapter->in_progress_assoc_req) {
844 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
845 ret = -1;
846 goto done;
847 }
848 bss = &adapter->in_progress_assoc_req->bss;
849
850 /*
851 * Join result code 0 --> SUCCESS
852 */
853 if (result) {
854 lbs_deb_join("ADHOC_RESP: failed\n");
855 if (adapter->connect_status == LIBERTAS_CONNECTED) {
856 libertas_mac_event_disconnected(priv);
857 }
858 ret = -1;
859 goto done;
860 }
861
862 /*
863 * Now the join cmd should be successful
864 * If BSSID has changed use SSID to compare instead of BSSID
865 */
866 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
867 escape_essid(bss->ssid, bss->ssid_len));
868
869 /* Send a Media Connected event, according to the Spec */
870 adapter->connect_status = LIBERTAS_CONNECTED;
871
872 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
873 /* Update the created network descriptor with the new BSSID */
874 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
875 }
876
877 /* Set the BSSID from the joined/started descriptor */
878 memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
879
880 /* Set the new SSID to current SSID */
881 memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
882 adapter->curbssparams.ssid_len = bss->ssid_len;
883
884 netif_carrier_on(priv->dev);
885 netif_wake_queue(priv->dev);
886
887 if (priv->mesh_dev) {
888 netif_carrier_on(priv->mesh_dev);
889 netif_wake_queue(priv->mesh_dev);
890 }
891
892 memset(&wrqu, 0, sizeof(wrqu));
893 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
894 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
895 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
896
897 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
898 lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
899 lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
900 print_mac(mac, padhocresult->bssid));
901
902 done:
903 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
904 return ret;
905 }
906
907 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
908 struct cmd_ds_command *resp)
909 {
910 lbs_deb_enter(LBS_DEB_JOIN);
911
912 libertas_mac_event_disconnected(priv);
913
914 lbs_deb_leave(LBS_DEB_JOIN);
915 return 0;
916 }
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