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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / net / wireless / libertas / join.c
blob2d4508048b68fe38029dd3d82156dad73aaa44ab
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 priv A pointer to struct lbs_private 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(struct lbs_private *priv,
40 u8 *rates,
41 u16 *rates_size)
42 {
43 u8 *card_rates = lbs_bg_rates;
44 size_t num_card_rates = sizeof(lbs_bg_rates);
45 int ret = 0, i, j;
46 u8 tmp[30];
47 size_t tmp_size = 0;
48
49 /* For each rate in card_rates that exists in rate1, copy to tmp */
50 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
51 for (j = 0; rates[j] && (j < *rates_size); j++) {
52 if (rates[j] == card_rates[i])
53 tmp[tmp_size++] = card_rates[i];
54 }
55 }
56
57 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
58 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
59 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
60 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
61
62 if (!priv->auto_rate) {
63 for (i = 0; i < tmp_size; i++) {
64 if (tmp[i] == priv->cur_rate)
65 goto done;
66 }
67 lbs_pr_alert("Previously set fixed data rate %#x isn't "
68 "compatible with the network.\n", priv->cur_rate);
69 ret = -1;
70 goto done;
71 }
72 ret = 0;
73
74 done:
75 memset(rates, 0, *rates_size);
76 *rates_size = min_t(int, tmp_size, *rates_size);
77 memcpy(rates, tmp, *rates_size);
78 return ret;
79 }
80
81
82 /**
83 * @brief Sets the MSB on basic rates as the firmware requires
84 *
85 * Scan through an array and set the MSB for basic data rates.
86 *
87 * @param rates buffer of data rates
88 * @param len size of buffer
89 */
90 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
91 {
92 int i;
93
94 for (i = 0; i < len; i++) {
95 if (rates[i] == 0x02 || rates[i] == 0x04 ||
96 rates[i] == 0x0b || rates[i] == 0x16)
97 rates[i] |= 0x80;
98 }
99 }
100
101 /**
102 * @brief Unsets the MSB on basic rates
103 *
104 * Scan through an array and unset the MSB for basic data rates.
105 *
106 * @param rates buffer of data rates
107 * @param len size of buffer
108 */
109 void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
110 {
111 int i;
112
113 for (i = 0; i < len; i++)
114 rates[i] &= 0x7f;
115 }
116
117
118 /**
119 * @brief Associate to a specific BSS discovered in a scan
120 *
121 * @param priv A pointer to struct lbs_private structure
122 * @param pbssdesc Pointer to the BSS descriptor to associate with.
123 *
124 * @return 0-success, otherwise fail
125 */
126 int lbs_associate(struct lbs_private *priv, struct assoc_request *assoc_req)
127 {
128 int ret;
129
130 lbs_deb_enter(LBS_DEB_ASSOC);
131
132 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
133 0, CMD_OPTION_WAITFORRSP,
134 0, assoc_req->bss.bssid);
135
136 if (ret)
137 goto done;
138
139 /* set preamble to firmware */
140 if ( (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
141 && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
142 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
143 else
144 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
145
146 lbs_set_radio_control(priv);
147
148 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
149 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
150
151 done:
152 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
153 return ret;
154 }
155
156 /**
157 * @brief Start an Adhoc Network
158 *
159 * @param priv A pointer to struct lbs_private structure
160 * @param adhocssid The ssid of the Adhoc Network
161 * @return 0--success, -1--fail
162 */
163 int lbs_start_adhoc_network(struct lbs_private *priv,
164 struct assoc_request *assoc_req)
165 {
166 int ret = 0;
167
168 priv->adhoccreate = 1;
169
170 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
171 lbs_deb_join("AdhocStart: Short preamble\n");
172 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
173 } else {
174 lbs_deb_join("AdhocStart: Long preamble\n");
175 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
176 }
177
178 lbs_set_radio_control(priv);
179
180 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
181 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
182
183 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
184 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
185
186 return ret;
187 }
188
189 /**
190 * @brief Join an adhoc network found in a previous scan
191 *
192 * @param priv A pointer to struct lbs_private structure
193 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
194 * to attempt to join
195 *
196 * @return 0--success, -1--fail
197 */
198 int lbs_join_adhoc_network(struct lbs_private *priv,
199 struct assoc_request *assoc_req)
200 {
201 struct bss_descriptor * bss = &assoc_req->bss;
202 int ret = 0;
203
204 lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
205 __func__,
206 escape_essid(priv->curbssparams.ssid,
207 priv->curbssparams.ssid_len),
208 priv->curbssparams.ssid_len);
209 lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
210 __func__, escape_essid(bss->ssid, bss->ssid_len),
211 bss->ssid_len);
212
213 /* check if the requested SSID is already joined */
214 if ( priv->curbssparams.ssid_len
215 && !lbs_ssid_cmp(priv->curbssparams.ssid,
216 priv->curbssparams.ssid_len,
217 bss->ssid, bss->ssid_len)
218 && (priv->mode == IW_MODE_ADHOC)
219 && (priv->connect_status == LBS_CONNECTED)) {
220 union iwreq_data wrqu;
221
222 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
223 "current, not attempting to re-join");
224
225 /* Send the re-association event though, because the association
226 * request really was successful, even if just a null-op.
227 */
228 memset(&wrqu, 0, sizeof(wrqu));
229 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
230 ETH_ALEN);
231 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
232 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
233 goto out;
234 }
235
236 /* Use shortpreamble only when both creator and card supports
237 short preamble */
238 if ( !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
239 || !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
240 lbs_deb_join("AdhocJoin: Long preamble\n");
241 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
242 } else {
243 lbs_deb_join("AdhocJoin: Short preamble\n");
244 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
245 }
246
247 lbs_set_radio_control(priv);
248
249 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
250 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
251
252 priv->adhoccreate = 0;
253
254 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
255 0, CMD_OPTION_WAITFORRSP,
256 OID_802_11_SSID, assoc_req);
257
258 out:
259 return ret;
260 }
261
262 int lbs_stop_adhoc_network(struct lbs_private *priv)
263 {
264 return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
265 0, CMD_OPTION_WAITFORRSP, 0, NULL);
266 }
267
268 /**
269 * @brief Send Deauthentication Request
270 *
271 * @param priv A pointer to struct lbs_private structure
272 * @return 0--success, -1--fail
273 */
274 int lbs_send_deauthentication(struct lbs_private *priv)
275 {
276 return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
277 0, CMD_OPTION_WAITFORRSP, 0, NULL);
278 }
279
280 /**
281 * @brief This function prepares command of authenticate.
282 *
283 * @param priv A pointer to struct lbs_private structure
284 * @param cmd A pointer to cmd_ds_command structure
285 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
286 *
287 * @return 0 or -1
288 */
289 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
290 struct cmd_ds_command *cmd,
291 void *pdata_buf)
292 {
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 (priv->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 priv->secinfo.auth_mode);
318 goto out;
319 }
320
321 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
322
323 lbs_deb_join("AUTH_CMD: BSSID %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 lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
333 struct cmd_ds_command *cmd)
334 {
335 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
336
337 lbs_deb_enter(LBS_DEB_JOIN);
338
339 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
340 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
341 S_DS_GEN);
342
343 /* set AP MAC address */
344 memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
345
346 /* Reason code 3 = Station is leaving */
347 #define REASON_CODE_STA_LEAVING 3
348 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
349
350 lbs_deb_leave(LBS_DEB_JOIN);
351 return 0;
352 }
353
354 int lbs_cmd_80211_associate(struct lbs_private *priv,
355 struct cmd_ds_command *cmd, void *pdata_buf)
356 {
357 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
358 int ret = 0;
359 struct assoc_request * assoc_req = pdata_buf;
360 struct bss_descriptor * bss = &assoc_req->bss;
361 u8 *pos;
362 u16 tmpcap, tmplen;
363 struct mrvlietypes_ssidparamset *ssid;
364 struct mrvlietypes_phyparamset *phy;
365 struct mrvlietypes_ssparamset *ss;
366 struct mrvlietypes_ratesparamset *rates;
367 struct mrvlietypes_rsnparamset *rsn;
368
369 lbs_deb_enter(LBS_DEB_ASSOC);
370
371 pos = (u8 *) passo;
372
373 if (!priv) {
374 ret = -1;
375 goto done;
376 }
377
378 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
379
380 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
381 pos += sizeof(passo->peerstaaddr);
382
383 /* set the listen interval */
384 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
385
386 pos += sizeof(passo->capability);
387 pos += sizeof(passo->listeninterval);
388 pos += sizeof(passo->bcnperiod);
389 pos += sizeof(passo->dtimperiod);
390
391 ssid = (struct mrvlietypes_ssidparamset *) pos;
392 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
393 tmplen = bss->ssid_len;
394 ssid->header.len = cpu_to_le16(tmplen);
395 memcpy(ssid->ssid, bss->ssid, tmplen);
396 pos += sizeof(ssid->header) + tmplen;
397
398 phy = (struct mrvlietypes_phyparamset *) pos;
399 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
400 tmplen = sizeof(phy->fh_ds.dsparamset);
401 phy->header.len = cpu_to_le16(tmplen);
402 memcpy(&phy->fh_ds.dsparamset,
403 &bss->phyparamset.dsparamset.currentchan,
404 tmplen);
405 pos += sizeof(phy->header) + tmplen;
406
407 ss = (struct mrvlietypes_ssparamset *) pos;
408 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
409 tmplen = sizeof(ss->cf_ibss.cfparamset);
410 ss->header.len = cpu_to_le16(tmplen);
411 pos += sizeof(ss->header) + tmplen;
412
413 rates = (struct mrvlietypes_ratesparamset *) pos;
414 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
415 memcpy(&rates->rates, &bss->rates, MAX_RATES);
416 tmplen = MAX_RATES;
417 if (get_common_rates(priv, rates->rates, &tmplen)) {
418 ret = -1;
419 goto done;
420 }
421 pos += sizeof(rates->header) + tmplen;
422 rates->header.len = cpu_to_le16(tmplen);
423 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
424
425 /* Copy the infra. association rates into Current BSS state structure */
426 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
427 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
428
429 /* Set MSB on basic rates as the firmware requires, but _after_
430 * copying to current bss rates.
431 */
432 lbs_set_basic_rate_flags(rates->rates, tmplen);
433
434 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
435 rsn = (struct mrvlietypes_rsnparamset *) pos;
436 /* WPA_IE or WPA2_IE */
437 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
438 tmplen = (u16) assoc_req->wpa_ie[1];
439 rsn->header.len = cpu_to_le16(tmplen);
440 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
441 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
442 sizeof(rsn->header) + tmplen);
443 pos += sizeof(rsn->header) + tmplen;
444 }
445
446 /* update curbssparams */
447 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
448
449 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
450 ret = -1;
451 goto done;
452 }
453
454 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
455
456 /* set the capability info */
457 tmpcap = (bss->capability & CAPINFO_MASK);
458 if (bss->mode == IW_MODE_INFRA)
459 tmpcap |= WLAN_CAPABILITY_ESS;
460 passo->capability = cpu_to_le16(tmpcap);
461 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
462
463 done:
464 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
465 return ret;
466 }
467
468 int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
469 struct cmd_ds_command *cmd, void *pdata_buf)
470 {
471 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
472 int ret = 0;
473 int cmdappendsize = 0;
474 struct assoc_request * assoc_req = pdata_buf;
475 u16 tmpcap = 0;
476 size_t ratesize = 0;
477
478 lbs_deb_enter(LBS_DEB_JOIN);
479
480 if (!priv) {
481 ret = -1;
482 goto done;
483 }
484
485 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
486
487 /*
488 * Fill in the parameters for 2 data structures:
489 * 1. cmd_ds_802_11_ad_hoc_start command
490 * 2. priv->scantable[i]
491 *
492 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
493 * probe delay, and cap info.
494 *
495 * Firmware will fill up beacon period, DTIM, Basic rates
496 * and operational rates.
497 */
498
499 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
500 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
501
502 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
503 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
504 assoc_req->ssid_len);
505
506 /* set the BSS type */
507 adhs->bsstype = CMD_BSS_TYPE_IBSS;
508 priv->mode = IW_MODE_ADHOC;
509 if (priv->beacon_period == 0)
510 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
511 adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
512
513 /* set Physical param set */
514 #define DS_PARA_IE_ID 3
515 #define DS_PARA_IE_LEN 1
516
517 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
518 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
519
520 WARN_ON(!assoc_req->channel);
521
522 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
523 assoc_req->channel);
524
525 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
526
527 /* set IBSS param set */
528 #define IBSS_PARA_IE_ID 6
529 #define IBSS_PARA_IE_LEN 2
530
531 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
532 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
533 adhs->ssparamset.ibssparamset.atimwindow = 0;
534
535 /* set capability info */
536 tmpcap = WLAN_CAPABILITY_IBSS;
537 if (assoc_req->secinfo.wep_enabled) {
538 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
539 tmpcap |= WLAN_CAPABILITY_PRIVACY;
540 } else {
541 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
542 }
543 adhs->capability = cpu_to_le16(tmpcap);
544
545 /* probedelay */
546 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
547
548 memset(adhs->rates, 0, sizeof(adhs->rates));
549 ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
550 memcpy(adhs->rates, lbs_bg_rates, ratesize);
551
552 /* Copy the ad-hoc creating rates into Current BSS state structure */
553 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
554 memcpy(&priv->curbssparams.rates, &adhs->rates, ratesize);
555
556 /* Set MSB on basic rates as the firmware requires, but _after_
557 * copying to current bss rates.
558 */
559 lbs_set_basic_rate_flags(adhs->rates, ratesize);
560
561 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
562 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
563
564 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
565
566 if (lbs_create_dnld_countryinfo_11d(priv)) {
567 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
568 ret = -1;
569 goto done;
570 }
571
572 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
573 S_DS_GEN + cmdappendsize);
574
575 ret = 0;
576 done:
577 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
578 return ret;
579 }
580
581 int lbs_cmd_80211_ad_hoc_stop(struct lbs_private *priv,
582 struct cmd_ds_command *cmd)
583 {
584 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
585 cmd->size = cpu_to_le16(S_DS_GEN);
586
587 return 0;
588 }
589
590 int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
591 struct cmd_ds_command *cmd, void *pdata_buf)
592 {
593 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
594 struct assoc_request * assoc_req = pdata_buf;
595 struct bss_descriptor *bss = &assoc_req->bss;
596 int cmdappendsize = 0;
597 int ret = 0;
598 u16 ratesize = 0;
599 DECLARE_MAC_BUF(mac);
600
601 lbs_deb_enter(LBS_DEB_JOIN);
602
603 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
604
605 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
606 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
607
608 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
609 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
610
611 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
612 sizeof(union ieeetypes_phyparamset));
613
614 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
615 sizeof(union IEEEtypes_ssparamset));
616
617 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
618 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
619 bss->capability, CAPINFO_MASK);
620
621 /* information on BSSID descriptor passed to FW */
622 lbs_deb_join(
623 "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
624 print_mac(mac, join_cmd->bss.bssid),
625 join_cmd->bss.ssid);
626
627 /* failtimeout */
628 join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
629
630 /* probedelay */
631 join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
632
633 priv->curbssparams.channel = bss->channel;
634
635 /* Copy Data rates from the rates recorded in scan response */
636 memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
637 ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
638 memcpy(join_cmd->bss.rates, bss->rates, ratesize);
639 if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
640 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
641 ret = -1;
642 goto done;
643 }
644
645 /* Copy the ad-hoc creating rates into Current BSS state structure */
646 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
647 memcpy(&priv->curbssparams.rates, join_cmd->bss.rates, ratesize);
648
649 /* Set MSB on basic rates as the firmware requires, but _after_
650 * copying to current bss rates.
651 */
652 lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
653
654 join_cmd->bss.ssparamset.ibssparamset.atimwindow =
655 cpu_to_le16(bss->atimwindow);
656
657 if (assoc_req->secinfo.wep_enabled) {
658 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
659 tmp |= WLAN_CAPABILITY_PRIVACY;
660 join_cmd->bss.capability = cpu_to_le16(tmp);
661 }
662
663 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
664 /* wake up first */
665 __le32 Localpsmode;
666
667 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
668 ret = lbs_prepare_and_send_command(priv,
669 CMD_802_11_PS_MODE,
670 CMD_ACT_SET,
671 0, 0, &Localpsmode);
672
673 if (ret) {
674 ret = -1;
675 goto done;
676 }
677 }
678
679 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
680 ret = -1;
681 goto done;
682 }
683
684 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
685 S_DS_GEN + cmdappendsize);
686
687 done:
688 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
689 return ret;
690 }
691
692 int lbs_ret_80211_associate(struct lbs_private *priv,
693 struct cmd_ds_command *resp)
694 {
695 int ret = 0;
696 union iwreq_data wrqu;
697 struct ieeetypes_assocrsp *passocrsp;
698 struct bss_descriptor * bss;
699 u16 status_code;
700
701 lbs_deb_enter(LBS_DEB_ASSOC);
702
703 if (!priv->in_progress_assoc_req) {
704 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
705 ret = -1;
706 goto done;
707 }
708 bss = &priv->in_progress_assoc_req->bss;
709
710 passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
711
712 /*
713 * Older FW versions map the IEEE 802.11 Status Code in the association
714 * response to the following values returned in passocrsp->statuscode:
715 *
716 * IEEE Status Code Marvell Status Code
717 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
718 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
719 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
720 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
721 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
722 * others -> 0x0003 ASSOC_RESULT_REFUSED
723 *
724 * Other response codes:
725 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
726 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
727 * association response from the AP)
728 */
729
730 status_code = le16_to_cpu(passocrsp->statuscode);
731 switch (status_code) {
732 case 0x00:
733 break;
734 case 0x01:
735 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
736 break;
737 case 0x02:
738 lbs_deb_assoc("ASSOC_RESP: internal timer "
739 "expired while waiting for the AP\n");
740 break;
741 case 0x03:
742 lbs_deb_assoc("ASSOC_RESP: association "
743 "refused by AP\n");
744 break;
745 case 0x04:
746 lbs_deb_assoc("ASSOC_RESP: authentication "
747 "refused by AP\n");
748 break;
749 default:
750 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
751 " unknown\n", status_code);
752 break;
753 }
754
755 if (status_code) {
756 lbs_mac_event_disconnected(priv);
757 ret = -1;
758 goto done;
759 }
760
761 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
762 le16_to_cpu(resp->size) - S_DS_GEN);
763
764 /* Send a Media Connected event, according to the Spec */
765 priv->connect_status = LBS_CONNECTED;
766
767 /* Update current SSID and BSSID */
768 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
769 priv->curbssparams.ssid_len = bss->ssid_len;
770 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
771
772 lbs_deb_assoc("ASSOC_RESP: currentpacketfilter is 0x%x\n",
773 priv->currentpacketfilter);
774
775 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
776 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
777
778 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
779 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
780 priv->nextSNRNF = 0;
781 priv->numSNRNF = 0;
782
783 netif_carrier_on(priv->dev);
784 if (!priv->tx_pending_len)
785 netif_wake_queue(priv->dev);
786
787 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
788 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
789 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
790
791 done:
792 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
793 return ret;
794 }
795
796 int lbs_ret_80211_disassociate(struct lbs_private *priv,
797 struct cmd_ds_command *resp)
798 {
799 lbs_deb_enter(LBS_DEB_JOIN);
800
801 lbs_mac_event_disconnected(priv);
802
803 lbs_deb_leave(LBS_DEB_JOIN);
804 return 0;
805 }
806
807 int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
808 struct cmd_ds_command *resp)
809 {
810 int ret = 0;
811 u16 command = le16_to_cpu(resp->command);
812 u16 result = le16_to_cpu(resp->result);
813 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
814 union iwreq_data wrqu;
815 struct bss_descriptor *bss;
816 DECLARE_MAC_BUF(mac);
817
818 lbs_deb_enter(LBS_DEB_JOIN);
819
820 padhocresult = &resp->params.result;
821
822 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
823 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
824 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
825
826 if (!priv->in_progress_assoc_req) {
827 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
828 ret = -1;
829 goto done;
830 }
831 bss = &priv->in_progress_assoc_req->bss;
832
833 /*
834 * Join result code 0 --> SUCCESS
835 */
836 if (result) {
837 lbs_deb_join("ADHOC_RESP: failed\n");
838 if (priv->connect_status == LBS_CONNECTED) {
839 lbs_mac_event_disconnected(priv);
840 }
841 ret = -1;
842 goto done;
843 }
844
845 /*
846 * Now the join cmd should be successful
847 * If BSSID has changed use SSID to compare instead of BSSID
848 */
849 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
850 escape_essid(bss->ssid, bss->ssid_len));
851
852 /* Send a Media Connected event, according to the Spec */
853 priv->connect_status = LBS_CONNECTED;
854
855 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
856 /* Update the created network descriptor with the new BSSID */
857 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
858 }
859
860 /* Set the BSSID from the joined/started descriptor */
861 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
862
863 /* Set the new SSID to current SSID */
864 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
865 priv->curbssparams.ssid_len = bss->ssid_len;
866
867 netif_carrier_on(priv->dev);
868 if (!priv->tx_pending_len)
869 netif_wake_queue(priv->dev);
870
871 memset(&wrqu, 0, sizeof(wrqu));
872 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
873 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
874 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
875
876 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
877 lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
878 lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
879 print_mac(mac, padhocresult->bssid));
880
881 done:
882 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
883 return ret;
884 }
885
886 int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv,
887 struct cmd_ds_command *resp)
888 {
889 lbs_deb_enter(LBS_DEB_JOIN);
890
891 lbs_mac_event_disconnected(priv);
892
893 lbs_deb_leave(LBS_DEB_JOIN);
894 return 0;
895 }
WRT350N Kernel Patches