1 /* Copyright (C) 2006, Red Hat, Inc. */
3 #include <linux/etherdevice.h>
12 static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
13 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
14 static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
15 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
17 /* The firmware needs certain bits masked out of the beacon-derviced capability
18 * field when associating/joining to BSSs.
20 #define CAPINFO_MASK (~(0xda00))
25 * @brief Associate to a specific BSS discovered in a scan
27 * @param priv A pointer to struct lbs_private structure
28 * @param pbssdesc Pointer to the BSS descriptor to associate with.
30 * @return 0-success, otherwise fail
32 static int lbs_associate(struct lbs_private *priv,
33 struct assoc_request *assoc_req)
37 lbs_deb_enter(LBS_DEB_ASSOC);
39 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
40 0, CMD_OPTION_WAITFORRSP,
41 0, assoc_req->bss.bssid);
46 /* set preamble to firmware */
47 if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
48 (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
49 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
51 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
53 lbs_set_radio_control(priv);
55 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
56 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
59 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
64 * @brief Join an adhoc network found in a previous scan
66 * @param priv A pointer to struct lbs_private structure
67 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
70 * @return 0--success, -1--fail
72 static int lbs_join_adhoc_network(struct lbs_private *priv,
73 struct assoc_request *assoc_req)
75 struct bss_descriptor *bss = &assoc_req->bss;
78 lbs_deb_join("current SSID '%s', ssid length %u\n",
79 escape_essid(priv->curbssparams.ssid,
80 priv->curbssparams.ssid_len),
81 priv->curbssparams.ssid_len);
82 lbs_deb_join("requested ssid '%s', ssid length %u\n",
83 escape_essid(bss->ssid, bss->ssid_len),
86 /* check if the requested SSID is already joined */
87 if (priv->curbssparams.ssid_len &&
88 !lbs_ssid_cmp(priv->curbssparams.ssid,
89 priv->curbssparams.ssid_len,
90 bss->ssid, bss->ssid_len) &&
91 (priv->mode == IW_MODE_ADHOC) &&
92 (priv->connect_status == LBS_CONNECTED)) {
93 union iwreq_data wrqu;
95 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
96 "current, not attempting to re-join");
98 /* Send the re-association event though, because the association
99 * request really was successful, even if just a null-op.
101 memset(&wrqu, 0, sizeof(wrqu));
102 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
104 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
105 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
109 /* Use shortpreamble only when both creator and card supports
111 if (!(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) ||
112 !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
113 lbs_deb_join("AdhocJoin: Long preamble\n");
114 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
116 lbs_deb_join("AdhocJoin: Short preamble\n");
117 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
120 lbs_set_radio_control(priv);
122 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
123 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
125 priv->adhoccreate = 0;
127 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
128 0, CMD_OPTION_WAITFORRSP,
129 OID_802_11_SSID, assoc_req);
136 * @brief Start an Adhoc Network
138 * @param priv A pointer to struct lbs_private structure
139 * @param adhocssid The ssid of the Adhoc Network
140 * @return 0--success, -1--fail
142 static int lbs_start_adhoc_network(struct lbs_private *priv,
143 struct assoc_request *assoc_req)
147 priv->adhoccreate = 1;
149 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
150 lbs_deb_join("AdhocStart: Short preamble\n");
151 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
153 lbs_deb_join("AdhocStart: Long preamble\n");
154 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
157 lbs_set_radio_control(priv);
159 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
160 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
162 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
163 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
168 int lbs_stop_adhoc_network(struct lbs_private *priv)
170 return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
171 0, CMD_OPTION_WAITFORRSP, 0, NULL);
174 static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
175 struct bss_descriptor *match_bss)
177 if (!secinfo->wep_enabled && !secinfo->WPAenabled
178 && !secinfo->WPA2enabled
179 && match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC
180 && match_bss->rsn_ie[0] != MFIE_TYPE_RSN
181 && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
187 static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
188 struct bss_descriptor *match_bss)
190 if (secinfo->wep_enabled && !secinfo->WPAenabled
191 && !secinfo->WPA2enabled
192 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
198 static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
199 struct bss_descriptor *match_bss)
201 if (!secinfo->wep_enabled && secinfo->WPAenabled
202 && (match_bss->wpa_ie[0] == MFIE_TYPE_GENERIC)
203 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
204 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
211 static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
212 struct bss_descriptor *match_bss)
214 if (!secinfo->wep_enabled && secinfo->WPA2enabled &&
215 (match_bss->rsn_ie[0] == MFIE_TYPE_RSN)
216 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
217 (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
224 static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
225 struct bss_descriptor *match_bss)
227 if (!secinfo->wep_enabled && !secinfo->WPAenabled
228 && !secinfo->WPA2enabled
229 && (match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC)
230 && (match_bss->rsn_ie[0] != MFIE_TYPE_RSN)
231 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
238 * @brief Check if a scanned network compatible with the driver settings
240 * WEP WPA WPA2 ad-hoc encrypt Network
241 * enabled enabled enabled AES mode privacy WPA WPA2 Compatible
242 * 0 0 0 0 NONE 0 0 0 yes No security
243 * 1 0 0 0 NONE 1 0 0 yes Static WEP
244 * 0 1 0 0 x 1x 1 x yes WPA
245 * 0 0 1 0 x 1x x 1 yes WPA2
246 * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
247 * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
250 * @param priv A pointer to struct lbs_private
251 * @param index Index in scantable to check against current driver settings
252 * @param mode Network mode: Infrastructure or IBSS
254 * @return Index in scantable, or error code if negative
256 static int is_network_compatible(struct lbs_private *priv,
257 struct bss_descriptor *bss, uint8_t mode)
261 lbs_deb_enter(LBS_DEB_SCAN);
263 if (bss->mode != mode)
266 matched = match_bss_no_security(&priv->secinfo, bss);
269 matched = match_bss_static_wep(&priv->secinfo, bss);
272 matched = match_bss_wpa(&priv->secinfo, bss);
274 lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x "
275 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
276 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
277 priv->secinfo.wep_enabled ? "e" : "d",
278 priv->secinfo.WPAenabled ? "e" : "d",
279 priv->secinfo.WPA2enabled ? "e" : "d",
280 (bss->capability & WLAN_CAPABILITY_PRIVACY));
283 matched = match_bss_wpa2(&priv->secinfo, bss);
285 lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x "
286 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
287 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
288 priv->secinfo.wep_enabled ? "e" : "d",
289 priv->secinfo.WPAenabled ? "e" : "d",
290 priv->secinfo.WPA2enabled ? "e" : "d",
291 (bss->capability & WLAN_CAPABILITY_PRIVACY));
294 matched = match_bss_dynamic_wep(&priv->secinfo, bss);
296 lbs_deb_scan("is_network_compatible() dynamic WEP: "
297 "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n",
298 bss->wpa_ie[0], bss->rsn_ie[0],
299 (bss->capability & WLAN_CAPABILITY_PRIVACY));
303 /* bss security settings don't match those configured on card */
304 lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x "
305 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n",
306 bss->wpa_ie[0], bss->rsn_ie[0],
307 priv->secinfo.wep_enabled ? "e" : "d",
308 priv->secinfo.WPAenabled ? "e" : "d",
309 priv->secinfo.WPA2enabled ? "e" : "d",
310 (bss->capability & WLAN_CAPABILITY_PRIVACY));
313 lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
318 * @brief This function finds a specific compatible BSSID in the scan list
320 * Used in association code
322 * @param priv A pointer to struct lbs_private
323 * @param bssid BSSID to find in the scan list
324 * @param mode Network mode: Infrastructure or IBSS
326 * @return index in BSSID list, or error return code (< 0)
328 static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
329 uint8_t *bssid, uint8_t mode)
331 struct bss_descriptor *iter_bss;
332 struct bss_descriptor *found_bss = NULL;
334 lbs_deb_enter(LBS_DEB_SCAN);
339 lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN);
341 /* Look through the scan table for a compatible match. The loop will
342 * continue past a matched bssid that is not compatible in case there
343 * is an AP with multiple SSIDs assigned to the same BSSID
345 mutex_lock(&priv->lock);
346 list_for_each_entry(iter_bss, &priv->network_list, list) {
347 if (compare_ether_addr(iter_bss->bssid, bssid))
348 continue; /* bssid doesn't match */
352 if (!is_network_compatible(priv, iter_bss, mode))
354 found_bss = iter_bss;
357 found_bss = iter_bss;
361 mutex_unlock(&priv->lock);
364 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
369 * @brief This function finds ssid in ssid list.
371 * Used in association code
373 * @param priv A pointer to struct lbs_private
374 * @param ssid SSID to find in the list
375 * @param bssid BSSID to qualify the SSID selection (if provided)
376 * @param mode Network mode: Infrastructure or IBSS
378 * @return index in BSSID list
380 static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
381 uint8_t *ssid, uint8_t ssid_len,
382 uint8_t *bssid, uint8_t mode,
386 struct bss_descriptor *iter_bss = NULL;
387 struct bss_descriptor *found_bss = NULL;
388 struct bss_descriptor *tmp_oldest = NULL;
390 lbs_deb_enter(LBS_DEB_SCAN);
392 mutex_lock(&priv->lock);
394 list_for_each_entry(iter_bss, &priv->network_list, list) {
396 (iter_bss->last_scanned < tmp_oldest->last_scanned))
397 tmp_oldest = iter_bss;
399 if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
400 ssid, ssid_len) != 0)
401 continue; /* ssid doesn't match */
402 if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
403 continue; /* bssid doesn't match */
404 if ((channel > 0) && (iter_bss->channel != channel))
405 continue; /* channel doesn't match */
410 if (!is_network_compatible(priv, iter_bss, mode))
414 /* Found requested BSSID */
415 found_bss = iter_bss;
419 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
420 bestrssi = SCAN_RSSI(iter_bss->rssi);
421 found_bss = iter_bss;
426 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
427 bestrssi = SCAN_RSSI(iter_bss->rssi);
428 found_bss = iter_bss;
435 mutex_unlock(&priv->lock);
436 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
440 static int assoc_helper_essid(struct lbs_private *priv,
441 struct assoc_request * assoc_req)
444 struct bss_descriptor * bss;
447 lbs_deb_enter(LBS_DEB_ASSOC);
449 /* FIXME: take channel into account when picking SSIDs if a channel
453 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
454 channel = assoc_req->channel;
456 lbs_deb_assoc("SSID '%s' requested\n",
457 escape_essid(assoc_req->ssid, assoc_req->ssid_len));
458 if (assoc_req->mode == IW_MODE_INFRA) {
459 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
460 assoc_req->ssid_len);
462 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
463 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
465 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
466 ret = lbs_associate(priv, assoc_req);
468 lbs_deb_assoc("SSID not found; cannot associate\n");
470 } else if (assoc_req->mode == IW_MODE_ADHOC) {
471 /* Scan for the network, do not save previous results. Stale
472 * scan data will cause us to join a non-existant adhoc network
474 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
475 assoc_req->ssid_len);
477 /* Search for the requested SSID in the scan table */
478 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
479 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
481 lbs_deb_assoc("SSID found, will join\n");
482 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
483 lbs_join_adhoc_network(priv, assoc_req);
485 /* else send START command */
486 lbs_deb_assoc("SSID not found, creating adhoc network\n");
487 memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
489 assoc_req->bss.ssid_len = assoc_req->ssid_len;
490 lbs_start_adhoc_network(priv, assoc_req);
494 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
499 static int assoc_helper_bssid(struct lbs_private *priv,
500 struct assoc_request * assoc_req)
503 struct bss_descriptor * bss;
504 DECLARE_MAC_BUF(mac);
506 lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
507 print_mac(mac, assoc_req->bssid));
509 /* Search for index position in list for requested MAC */
510 bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
513 lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
514 "cannot associate.\n", print_mac(mac, assoc_req->bssid));
518 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
519 if (assoc_req->mode == IW_MODE_INFRA) {
520 ret = lbs_associate(priv, assoc_req);
521 lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret);
522 } else if (assoc_req->mode == IW_MODE_ADHOC) {
523 lbs_join_adhoc_network(priv, assoc_req);
527 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
532 static int assoc_helper_associate(struct lbs_private *priv,
533 struct assoc_request * assoc_req)
535 int ret = 0, done = 0;
537 lbs_deb_enter(LBS_DEB_ASSOC);
539 /* If we're given and 'any' BSSID, try associating based on SSID */
541 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
542 if (compare_ether_addr(bssid_any, assoc_req->bssid)
543 && compare_ether_addr(bssid_off, assoc_req->bssid)) {
544 ret = assoc_helper_bssid(priv, assoc_req);
549 if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
550 ret = assoc_helper_essid(priv, assoc_req);
553 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
558 static int assoc_helper_mode(struct lbs_private *priv,
559 struct assoc_request * assoc_req)
563 lbs_deb_enter(LBS_DEB_ASSOC);
565 if (assoc_req->mode == priv->mode)
568 if (assoc_req->mode == IW_MODE_INFRA) {
569 if (priv->psstate != PS_STATE_FULL_POWER)
570 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
571 priv->psmode = LBS802_11POWERMODECAM;
574 priv->mode = assoc_req->mode;
575 ret = lbs_prepare_and_send_command(priv,
577 0, CMD_OPTION_WAITFORRSP,
578 OID_802_11_INFRASTRUCTURE_MODE,
579 /* Shoot me now */ (void *) (size_t) assoc_req->mode);
582 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
586 static int assoc_helper_channel(struct lbs_private *priv,
587 struct assoc_request * assoc_req)
591 lbs_deb_enter(LBS_DEB_ASSOC);
593 ret = lbs_update_channel(priv);
595 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
599 if (assoc_req->channel == priv->curbssparams.channel)
602 if (priv->mesh_dev) {
603 /* Change mesh channel first; 21.p21 firmware won't let
604 you change channel otherwise (even though it'll return
606 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
610 lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
611 priv->curbssparams.channel, assoc_req->channel);
613 ret = lbs_set_channel(priv, assoc_req->channel);
615 lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
617 /* FIXME: shouldn't need to grab the channel _again_ after setting
618 * it since the firmware is supposed to return the new channel, but
620 ret = lbs_update_channel(priv);
622 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
626 if (assoc_req->channel != priv->curbssparams.channel) {
627 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
632 if ( assoc_req->secinfo.wep_enabled
633 && (assoc_req->wep_keys[0].len
634 || assoc_req->wep_keys[1].len
635 || assoc_req->wep_keys[2].len
636 || assoc_req->wep_keys[3].len)) {
637 /* Make sure WEP keys are re-sent to firmware */
638 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
641 /* Must restart/rejoin adhoc networks after channel change */
642 set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
646 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
647 priv->curbssparams.channel);
650 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
655 static int assoc_helper_wep_keys(struct lbs_private *priv,
656 struct assoc_request *assoc_req)
661 lbs_deb_enter(LBS_DEB_ASSOC);
663 /* Set or remove WEP keys */
664 if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
665 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
666 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
668 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
673 /* enable/disable the MAC's WEP packet filter */
674 if (assoc_req->secinfo.wep_enabled)
675 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
677 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
679 lbs_set_mac_control(priv);
681 mutex_lock(&priv->lock);
683 /* Copy WEP keys into priv wep key fields */
684 for (i = 0; i < 4; i++) {
685 memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
686 sizeof(struct enc_key));
688 priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
690 mutex_unlock(&priv->lock);
693 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
697 static int assoc_helper_secinfo(struct lbs_private *priv,
698 struct assoc_request * assoc_req)
704 lbs_deb_enter(LBS_DEB_ASSOC);
706 memcpy(&priv->secinfo, &assoc_req->secinfo,
707 sizeof(struct lbs_802_11_security));
709 lbs_set_mac_control(priv);
711 /* If RSN is already enabled, don't try to enable it again, since
712 * ENABLE_RSN resets internal state machines and will clobber the
713 * 4-way WPA handshake.
716 /* Get RSN enabled/disabled */
717 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
719 lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
723 /* Don't re-enable RSN if it's already enabled */
724 do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
728 /* Set RSN enabled/disabled */
729 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
732 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
737 static int assoc_helper_wpa_keys(struct lbs_private *priv,
738 struct assoc_request * assoc_req)
741 unsigned int flags = assoc_req->flags;
743 lbs_deb_enter(LBS_DEB_ASSOC);
745 /* Work around older firmware bug where WPA unicast and multicast
746 * keys must be set independently. Seen in SDIO parts with firmware
750 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
751 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
752 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
753 assoc_req->flags = flags;
759 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
760 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
762 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
763 assoc_req->flags = flags;
767 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
772 static int assoc_helper_wpa_ie(struct lbs_private *priv,
773 struct assoc_request * assoc_req)
777 lbs_deb_enter(LBS_DEB_ASSOC);
779 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
780 memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
781 priv->wpa_ie_len = assoc_req->wpa_ie_len;
783 memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
784 priv->wpa_ie_len = 0;
787 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
792 static int should_deauth_infrastructure(struct lbs_private *priv,
793 struct assoc_request * assoc_req)
797 if (priv->connect_status != LBS_CONNECTED)
800 lbs_deb_enter(LBS_DEB_ASSOC);
801 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
802 lbs_deb_assoc("Deauthenticating due to new SSID\n");
807 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
808 if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
809 lbs_deb_assoc("Deauthenticating due to new security\n");
815 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
816 lbs_deb_assoc("Deauthenticating due to new BSSID\n");
821 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
822 lbs_deb_assoc("Deauthenticating due to channel switch\n");
827 /* FIXME: deal with 'auto' mode somehow */
828 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
829 if (assoc_req->mode != IW_MODE_INFRA) {
830 lbs_deb_assoc("Deauthenticating due to leaving "
838 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
843 static int should_stop_adhoc(struct lbs_private *priv,
844 struct assoc_request * assoc_req)
846 lbs_deb_enter(LBS_DEB_ASSOC);
848 if (priv->connect_status != LBS_CONNECTED)
851 if (lbs_ssid_cmp(priv->curbssparams.ssid,
852 priv->curbssparams.ssid_len,
853 assoc_req->ssid, assoc_req->ssid_len) != 0)
856 /* FIXME: deal with 'auto' mode somehow */
857 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
858 if (assoc_req->mode != IW_MODE_ADHOC)
862 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
863 if (assoc_req->channel != priv->curbssparams.channel)
867 lbs_deb_leave(LBS_DEB_ASSOC);
873 * @brief This function finds the best SSID in the Scan List
875 * Search the scan table for the best SSID that also matches the current
876 * adapter network preference (infrastructure or adhoc)
878 * @param priv A pointer to struct lbs_private
880 * @return index in BSSID list
882 static struct bss_descriptor *lbs_find_best_ssid_in_list(
883 struct lbs_private *priv, uint8_t mode)
885 uint8_t bestrssi = 0;
886 struct bss_descriptor *iter_bss;
887 struct bss_descriptor *best_bss = NULL;
889 lbs_deb_enter(LBS_DEB_SCAN);
891 mutex_lock(&priv->lock);
893 list_for_each_entry(iter_bss, &priv->network_list, list) {
897 if (!is_network_compatible(priv, iter_bss, mode))
899 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
901 bestrssi = SCAN_RSSI(iter_bss->rssi);
906 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
908 bestrssi = SCAN_RSSI(iter_bss->rssi);
914 mutex_unlock(&priv->lock);
915 lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
920 * @brief Find the best AP
922 * Used from association worker.
924 * @param priv A pointer to struct lbs_private structure
925 * @param pSSID A pointer to AP's ssid
927 * @return 0--success, otherwise--fail
929 static int lbs_find_best_network_ssid(struct lbs_private *priv,
930 uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
934 struct bss_descriptor *found;
936 lbs_deb_enter(LBS_DEB_SCAN);
938 priv->scan_ssid_len = 0;
939 lbs_scan_networks(priv, 1);
940 if (priv->surpriseremoved)
943 found = lbs_find_best_ssid_in_list(priv, preferred_mode);
944 if (found && (found->ssid_len > 0)) {
945 memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE);
946 *out_ssid_len = found->ssid_len;
947 *out_mode = found->mode;
952 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
957 void lbs_association_worker(struct work_struct *work)
959 struct lbs_private *priv = container_of(work, struct lbs_private,
961 struct assoc_request * assoc_req = NULL;
963 int find_any_ssid = 0;
964 DECLARE_MAC_BUF(mac);
966 lbs_deb_enter(LBS_DEB_ASSOC);
968 mutex_lock(&priv->lock);
969 assoc_req = priv->pending_assoc_req;
970 priv->pending_assoc_req = NULL;
971 priv->in_progress_assoc_req = assoc_req;
972 mutex_unlock(&priv->lock);
978 "Association Request:\n"
988 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
989 assoc_req->channel, assoc_req->band, assoc_req->mode,
990 print_mac(mac, assoc_req->bssid),
991 assoc_req->secinfo.WPAenabled ? " WPA" : "",
992 assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
993 assoc_req->secinfo.wep_enabled ? " WEP" : "",
994 assoc_req->secinfo.auth_mode);
996 /* If 'any' SSID was specified, find an SSID to associate with */
997 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
998 && !assoc_req->ssid_len)
1001 /* But don't use 'any' SSID if there's a valid locked BSSID to use */
1002 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1003 if (compare_ether_addr(assoc_req->bssid, bssid_any)
1004 && compare_ether_addr(assoc_req->bssid, bssid_off))
1008 if (find_any_ssid) {
1009 u8 new_mode = assoc_req->mode;
1011 ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
1012 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
1014 lbs_deb_assoc("Could not find best network\n");
1019 /* Ensure we switch to the mode of the AP */
1020 if (assoc_req->mode == IW_MODE_AUTO) {
1021 set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
1022 assoc_req->mode = new_mode;
1027 * Check if the attributes being changing require deauthentication
1028 * from the currently associated infrastructure access point.
1030 if (priv->mode == IW_MODE_INFRA) {
1031 if (should_deauth_infrastructure(priv, assoc_req)) {
1032 ret = lbs_send_deauthentication(priv);
1034 lbs_deb_assoc("Deauthentication due to new "
1035 "configuration request failed: %d\n",
1039 } else if (priv->mode == IW_MODE_ADHOC) {
1040 if (should_stop_adhoc(priv, assoc_req)) {
1041 ret = lbs_stop_adhoc_network(priv);
1043 lbs_deb_assoc("Teardown of AdHoc network due to "
1044 "new configuration request failed: %d\n",
1051 /* Send the various configuration bits to the firmware */
1052 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1053 ret = assoc_helper_mode(priv, assoc_req);
1058 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1059 ret = assoc_helper_channel(priv, assoc_req);
1064 if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
1065 || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
1066 ret = assoc_helper_wep_keys(priv, assoc_req);
1071 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1072 ret = assoc_helper_secinfo(priv, assoc_req);
1077 if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1078 ret = assoc_helper_wpa_ie(priv, assoc_req);
1083 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
1084 || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1085 ret = assoc_helper_wpa_keys(priv, assoc_req);
1090 /* SSID/BSSID should be the _last_ config option set, because they
1091 * trigger the association attempt.
1093 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
1094 || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1097 ret = assoc_helper_associate(priv, assoc_req);
1099 lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
1104 if (priv->connect_status != LBS_CONNECTED) {
1105 lbs_deb_assoc("ASSOC: association unsuccessful, "
1111 lbs_deb_assoc("associated to %s\n",
1112 print_mac(mac, priv->curbssparams.bssid));
1113 lbs_prepare_and_send_command(priv,
1115 0, CMD_OPTION_WAITFORRSP, 0, NULL);
1123 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
1127 mutex_lock(&priv->lock);
1128 priv->in_progress_assoc_req = NULL;
1129 mutex_unlock(&priv->lock);
1133 lbs_deb_leave(LBS_DEB_ASSOC);
1138 * Caller MUST hold any necessary locks
1140 struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
1142 struct assoc_request * assoc_req;
1144 lbs_deb_enter(LBS_DEB_ASSOC);
1145 if (!priv->pending_assoc_req) {
1146 priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
1148 if (!priv->pending_assoc_req) {
1149 lbs_pr_info("Not enough memory to allocate association"
1155 /* Copy current configuration attributes to the association request,
1156 * but don't overwrite any that are already set.
1158 assoc_req = priv->pending_assoc_req;
1159 if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1160 memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
1162 assoc_req->ssid_len = priv->curbssparams.ssid_len;
1165 if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
1166 assoc_req->channel = priv->curbssparams.channel;
1168 if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
1169 assoc_req->band = priv->curbssparams.band;
1171 if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
1172 assoc_req->mode = priv->mode;
1174 if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1175 memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
1179 if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
1181 for (i = 0; i < 4; i++) {
1182 memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
1183 sizeof(struct enc_key));
1187 if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
1188 assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
1190 if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
1191 memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
1192 sizeof(struct enc_key));
1195 if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1196 memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
1197 sizeof(struct enc_key));
1200 if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1201 memcpy(&assoc_req->secinfo, &priv->secinfo,
1202 sizeof(struct lbs_802_11_security));
1205 if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
1206 memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
1208 assoc_req->wpa_ie_len = priv->wpa_ie_len;
1211 lbs_deb_leave(LBS_DEB_ASSOC);
1217 * @brief This function finds common rates between rate1 and card rates.
1219 * It will fill common rates in rate1 as output if found.
1221 * NOTE: Setting the MSB of the basic rates need to be taken
1222 * care, either before or after calling this function
1224 * @param priv A pointer to struct lbs_private structure
1225 * @param rate1 the buffer which keeps input and output
1226 * @param rate1_size the size of rate1 buffer; new size of buffer on return
1230 static int get_common_rates(struct lbs_private *priv,
1234 u8 *card_rates = lbs_bg_rates;
1235 size_t num_card_rates = sizeof(lbs_bg_rates);
1238 size_t tmp_size = 0;
1240 /* For each rate in card_rates that exists in rate1, copy to tmp */
1241 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
1242 for (j = 0; rates[j] && (j < *rates_size); j++) {
1243 if (rates[j] == card_rates[i])
1244 tmp[tmp_size++] = card_rates[i];
1248 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
1249 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
1250 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
1251 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
1253 if (!priv->enablehwauto) {
1254 for (i = 0; i < tmp_size; i++) {
1255 if (tmp[i] == priv->cur_rate)
1258 lbs_pr_alert("Previously set fixed data rate %#x isn't "
1259 "compatible with the network.\n", priv->cur_rate);
1266 memset(rates, 0, *rates_size);
1267 *rates_size = min_t(int, tmp_size, *rates_size);
1268 memcpy(rates, tmp, *rates_size);
1274 * @brief Sets the MSB on basic rates as the firmware requires
1276 * Scan through an array and set the MSB for basic data rates.
1278 * @param rates buffer of data rates
1279 * @param len size of buffer
1281 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
1285 for (i = 0; i < len; i++) {
1286 if (rates[i] == 0x02 || rates[i] == 0x04 ||
1287 rates[i] == 0x0b || rates[i] == 0x16)
1293 * @brief Send Deauthentication Request
1295 * @param priv A pointer to struct lbs_private structure
1296 * @return 0--success, -1--fail
1298 int lbs_send_deauthentication(struct lbs_private *priv)
1300 return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
1301 0, CMD_OPTION_WAITFORRSP, 0, NULL);
1305 * @brief This function prepares command of authenticate.
1307 * @param priv A pointer to struct lbs_private structure
1308 * @param cmd A pointer to cmd_ds_command structure
1309 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
1313 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
1314 struct cmd_ds_command *cmd,
1317 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
1319 u8 *bssid = pdata_buf;
1320 DECLARE_MAC_BUF(mac);
1322 lbs_deb_enter(LBS_DEB_JOIN);
1324 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
1325 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
1328 /* translate auth mode to 802.11 defined wire value */
1329 switch (priv->secinfo.auth_mode) {
1330 case IW_AUTH_ALG_OPEN_SYSTEM:
1331 pauthenticate->authtype = 0x00;
1333 case IW_AUTH_ALG_SHARED_KEY:
1334 pauthenticate->authtype = 0x01;
1336 case IW_AUTH_ALG_LEAP:
1337 pauthenticate->authtype = 0x80;
1340 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
1341 priv->secinfo.auth_mode);
1345 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
1347 lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
1348 print_mac(mac, bssid), pauthenticate->authtype);
1352 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1356 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
1357 struct cmd_ds_command *cmd)
1359 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
1361 lbs_deb_enter(LBS_DEB_JOIN);
1363 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
1364 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
1367 /* set AP MAC address */
1368 memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
1370 /* Reason code 3 = Station is leaving */
1371 #define REASON_CODE_STA_LEAVING 3
1372 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
1374 lbs_deb_leave(LBS_DEB_JOIN);
1378 int lbs_cmd_80211_associate(struct lbs_private *priv,
1379 struct cmd_ds_command *cmd, void *pdata_buf)
1381 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
1383 struct assoc_request *assoc_req = pdata_buf;
1384 struct bss_descriptor *bss = &assoc_req->bss;
1387 struct mrvlietypes_ssidparamset *ssid;
1388 struct mrvlietypes_phyparamset *phy;
1389 struct mrvlietypes_ssparamset *ss;
1390 struct mrvlietypes_ratesparamset *rates;
1391 struct mrvlietypes_rsnparamset *rsn;
1393 lbs_deb_enter(LBS_DEB_ASSOC);
1402 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1404 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
1405 pos += sizeof(passo->peerstaaddr);
1407 /* set the listen interval */
1408 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1410 pos += sizeof(passo->capability);
1411 pos += sizeof(passo->listeninterval);
1412 pos += sizeof(passo->bcnperiod);
1413 pos += sizeof(passo->dtimperiod);
1415 ssid = (struct mrvlietypes_ssidparamset *) pos;
1416 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
1417 tmplen = bss->ssid_len;
1418 ssid->header.len = cpu_to_le16(tmplen);
1419 memcpy(ssid->ssid, bss->ssid, tmplen);
1420 pos += sizeof(ssid->header) + tmplen;
1422 phy = (struct mrvlietypes_phyparamset *) pos;
1423 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
1424 tmplen = sizeof(phy->fh_ds.dsparamset);
1425 phy->header.len = cpu_to_le16(tmplen);
1426 memcpy(&phy->fh_ds.dsparamset,
1427 &bss->phyparamset.dsparamset.currentchan,
1429 pos += sizeof(phy->header) + tmplen;
1431 ss = (struct mrvlietypes_ssparamset *) pos;
1432 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
1433 tmplen = sizeof(ss->cf_ibss.cfparamset);
1434 ss->header.len = cpu_to_le16(tmplen);
1435 pos += sizeof(ss->header) + tmplen;
1437 rates = (struct mrvlietypes_ratesparamset *) pos;
1438 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
1439 memcpy(&rates->rates, &bss->rates, MAX_RATES);
1441 if (get_common_rates(priv, rates->rates, &tmplen)) {
1445 pos += sizeof(rates->header) + tmplen;
1446 rates->header.len = cpu_to_le16(tmplen);
1447 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
1449 /* Copy the infra. association rates into Current BSS state structure */
1450 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1451 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
1453 /* Set MSB on basic rates as the firmware requires, but _after_
1454 * copying to current bss rates.
1456 lbs_set_basic_rate_flags(rates->rates, tmplen);
1458 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1459 rsn = (struct mrvlietypes_rsnparamset *) pos;
1460 /* WPA_IE or WPA2_IE */
1461 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
1462 tmplen = (u16) assoc_req->wpa_ie[1];
1463 rsn->header.len = cpu_to_le16(tmplen);
1464 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
1465 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
1466 sizeof(rsn->header) + tmplen);
1467 pos += sizeof(rsn->header) + tmplen;
1470 /* update curbssparams */
1471 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
1473 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1478 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
1480 /* set the capability info */
1481 tmpcap = (bss->capability & CAPINFO_MASK);
1482 if (bss->mode == IW_MODE_INFRA)
1483 tmpcap |= WLAN_CAPABILITY_ESS;
1484 passo->capability = cpu_to_le16(tmpcap);
1485 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
1488 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1492 int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
1493 struct cmd_ds_command *cmd, void *pdata_buf)
1495 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
1497 int cmdappendsize = 0;
1498 struct assoc_request *assoc_req = pdata_buf;
1500 size_t ratesize = 0;
1502 lbs_deb_enter(LBS_DEB_JOIN);
1509 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
1512 * Fill in the parameters for 2 data structures:
1513 * 1. cmd_ds_802_11_ad_hoc_start command
1514 * 2. priv->scantable[i]
1516 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
1517 * probe delay, and cap info.
1519 * Firmware will fill up beacon period, DTIM, Basic rates
1520 * and operational rates.
1523 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
1524 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
1526 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
1527 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
1528 assoc_req->ssid_len);
1530 /* set the BSS type */
1531 adhs->bsstype = CMD_BSS_TYPE_IBSS;
1532 priv->mode = IW_MODE_ADHOC;
1533 if (priv->beacon_period == 0)
1534 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
1535 adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
1537 /* set Physical param set */
1538 #define DS_PARA_IE_ID 3
1539 #define DS_PARA_IE_LEN 1
1541 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
1542 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
1544 WARN_ON(!assoc_req->channel);
1546 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
1547 assoc_req->channel);
1549 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
1551 /* set IBSS param set */
1552 #define IBSS_PARA_IE_ID 6
1553 #define IBSS_PARA_IE_LEN 2
1555 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
1556 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
1557 adhs->ssparamset.ibssparamset.atimwindow = 0;
1559 /* set capability info */
1560 tmpcap = WLAN_CAPABILITY_IBSS;
1561 if (assoc_req->secinfo.wep_enabled) {
1562 lbs_deb_join("ADHOC_S_CMD: WEP enabled, "
1563 "setting privacy on\n");
1564 tmpcap |= WLAN_CAPABILITY_PRIVACY;
1566 lbs_deb_join("ADHOC_S_CMD: WEP disabled, "
1567 "setting privacy off\n");
1569 adhs->capability = cpu_to_le16(tmpcap);
1572 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1574 memset(adhs->rates, 0, sizeof(adhs->rates));
1575 ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
1576 memcpy(adhs->rates, lbs_bg_rates, ratesize);
1578 /* Copy the ad-hoc creating rates into Current BSS state structure */
1579 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1580 memcpy(&priv->curbssparams.rates, &adhs->rates, ratesize);
1582 /* Set MSB on basic rates as the firmware requires, but _after_
1583 * copying to current bss rates.
1585 lbs_set_basic_rate_flags(adhs->rates, ratesize);
1587 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
1588 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
1590 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
1592 if (lbs_create_dnld_countryinfo_11d(priv)) {
1593 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
1598 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
1599 S_DS_GEN + cmdappendsize);
1603 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1607 int lbs_cmd_80211_ad_hoc_stop(struct cmd_ds_command *cmd)
1609 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
1610 cmd->size = cpu_to_le16(S_DS_GEN);
1615 int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
1616 struct cmd_ds_command *cmd, void *pdata_buf)
1618 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
1619 struct assoc_request *assoc_req = pdata_buf;
1620 struct bss_descriptor *bss = &assoc_req->bss;
1621 int cmdappendsize = 0;
1624 DECLARE_MAC_BUF(mac);
1626 lbs_deb_enter(LBS_DEB_JOIN);
1628 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
1630 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
1631 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
1633 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
1634 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
1636 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
1637 sizeof(union ieeetypes_phyparamset));
1639 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
1640 sizeof(union IEEEtypes_ssparamset));
1642 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1643 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
1644 bss->capability, CAPINFO_MASK);
1646 /* information on BSSID descriptor passed to FW */
1648 "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
1649 print_mac(mac, join_cmd->bss.bssid),
1650 join_cmd->bss.ssid);
1653 join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1656 join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1658 priv->curbssparams.channel = bss->channel;
1660 /* Copy Data rates from the rates recorded in scan response */
1661 memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
1662 ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
1663 memcpy(join_cmd->bss.rates, bss->rates, ratesize);
1664 if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
1665 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
1670 /* Copy the ad-hoc creating rates into Current BSS state structure */
1671 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1672 memcpy(&priv->curbssparams.rates, join_cmd->bss.rates, ratesize);
1674 /* Set MSB on basic rates as the firmware requires, but _after_
1675 * copying to current bss rates.
1677 lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
1679 join_cmd->bss.ssparamset.ibssparamset.atimwindow =
1680 cpu_to_le16(bss->atimwindow);
1682 if (assoc_req->secinfo.wep_enabled) {
1683 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
1684 tmp |= WLAN_CAPABILITY_PRIVACY;
1685 join_cmd->bss.capability = cpu_to_le16(tmp);
1688 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1692 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1693 ret = lbs_prepare_and_send_command(priv,
1696 0, 0, &Localpsmode);
1704 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
1709 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
1710 S_DS_GEN + cmdappendsize);
1713 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1717 int lbs_ret_80211_associate(struct lbs_private *priv,
1718 struct cmd_ds_command *resp)
1721 union iwreq_data wrqu;
1722 struct ieeetypes_assocrsp *passocrsp;
1723 struct bss_descriptor *bss;
1726 lbs_deb_enter(LBS_DEB_ASSOC);
1728 if (!priv->in_progress_assoc_req) {
1729 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
1733 bss = &priv->in_progress_assoc_req->bss;
1735 passocrsp = (struct ieeetypes_assocrsp *) &resp->params;
1738 * Older FW versions map the IEEE 802.11 Status Code in the association
1739 * response to the following values returned in passocrsp->statuscode:
1741 * IEEE Status Code Marvell Status Code
1742 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1743 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1744 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1745 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1746 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1747 * others -> 0x0003 ASSOC_RESULT_REFUSED
1749 * Other response codes:
1750 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1751 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1752 * association response from the AP)
1755 status_code = le16_to_cpu(passocrsp->statuscode);
1756 switch (status_code) {
1760 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
1763 lbs_deb_assoc("ASSOC_RESP: internal timer "
1764 "expired while waiting for the AP\n");
1767 lbs_deb_assoc("ASSOC_RESP: association "
1771 lbs_deb_assoc("ASSOC_RESP: authentication "
1775 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
1776 " unknown\n", status_code);
1781 lbs_mac_event_disconnected(priv);
1786 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
1787 le16_to_cpu(resp->size) - S_DS_GEN);
1789 /* Send a Media Connected event, according to the Spec */
1790 priv->connect_status = LBS_CONNECTED;
1792 /* Update current SSID and BSSID */
1793 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1794 priv->curbssparams.ssid_len = bss->ssid_len;
1795 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1797 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
1798 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
1800 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
1801 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
1802 priv->nextSNRNF = 0;
1805 netif_carrier_on(priv->dev);
1806 if (!priv->tx_pending_len)
1807 netif_wake_queue(priv->dev);
1809 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1810 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1811 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1814 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1818 int lbs_ret_80211_disassociate(struct lbs_private *priv)
1820 lbs_deb_enter(LBS_DEB_JOIN);
1822 lbs_mac_event_disconnected(priv);
1824 lbs_deb_leave(LBS_DEB_JOIN);
1828 int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
1829 struct cmd_ds_command *resp)
1832 u16 command = le16_to_cpu(resp->command);
1833 u16 result = le16_to_cpu(resp->result);
1834 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
1835 union iwreq_data wrqu;
1836 struct bss_descriptor *bss;
1837 DECLARE_MAC_BUF(mac);
1839 lbs_deb_enter(LBS_DEB_JOIN);
1841 padhocresult = &resp->params.result;
1843 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
1844 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
1845 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
1847 if (!priv->in_progress_assoc_req) {
1848 lbs_deb_join("ADHOC_RESP: no in-progress association "
1853 bss = &priv->in_progress_assoc_req->bss;
1856 * Join result code 0 --> SUCCESS
1859 lbs_deb_join("ADHOC_RESP: failed\n");
1860 if (priv->connect_status == LBS_CONNECTED)
1861 lbs_mac_event_disconnected(priv);
1867 * Now the join cmd should be successful
1868 * If BSSID has changed use SSID to compare instead of BSSID
1870 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
1871 escape_essid(bss->ssid, bss->ssid_len));
1873 /* Send a Media Connected event, according to the Spec */
1874 priv->connect_status = LBS_CONNECTED;
1876 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
1877 /* Update the created network descriptor with the new BSSID */
1878 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
1881 /* Set the BSSID from the joined/started descriptor */
1882 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
1884 /* Set the new SSID to current SSID */
1885 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
1886 priv->curbssparams.ssid_len = bss->ssid_len;
1888 netif_carrier_on(priv->dev);
1889 if (!priv->tx_pending_len)
1890 netif_wake_queue(priv->dev);
1892 memset(&wrqu, 0, sizeof(wrqu));
1893 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
1894 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1895 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1897 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
1898 lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
1899 lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
1900 print_mac(mac, padhocresult->bssid));
1903 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
1907 int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv)
1909 lbs_deb_enter(LBS_DEB_JOIN);
1911 lbs_mac_event_disconnected(priv);
1913 lbs_deb_leave(LBS_DEB_JOIN);