1 /* Copyright (C) 2006, Red Hat, Inc. */
3 #include <linux/types.h>
4 #include <linux/etherdevice.h>
5 #include <linux/ieee80211.h>
6 #include <linux/if_arp.h>
7 #include <net/lib80211.h>
15 static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
16 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
17 static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
18 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
20 /* The firmware needs the following bits masked out of the beacon-derived
21 * capability field when associating/joining to a BSS:
22 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
24 #define CAPINFO_MASK (~(0xda00))
27 * 802.11b/g supported bitrates (in 500Kb/s units)
29 u8 lbs_bg_rates[MAX_RATES] =
30 { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
35 * @brief This function finds common rates between rates and card rates.
37 * It will fill common rates in rates as output if found.
39 * NOTE: Setting the MSB of the basic rates need to be taken
40 * care, either before or after calling this function
42 * @param priv A pointer to struct lbs_private structure
43 * @param rates the buffer which keeps input and output
44 * @param rates_size the size of rates buffer; new size of buffer on return,
45 * which will be less than or equal to original rates_size
47 * @return 0 on success, or -1 on error
49 static int get_common_rates(struct lbs_private *priv,
54 u8 intersection[MAX_RATES];
55 u16 intersection_size;
58 intersection_size = min_t(u16, *rates_size, ARRAY_SIZE(intersection));
60 /* Allow each rate from 'rates' that is supported by the hardware */
61 for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && lbs_bg_rates[i]; i++) {
62 for (j = 0; j < intersection_size && rates[j]; j++) {
63 if (rates[j] == lbs_bg_rates[i])
64 intersection[num_rates++] = rates[j];
68 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
69 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", lbs_bg_rates,
70 ARRAY_SIZE(lbs_bg_rates));
71 lbs_deb_hex(LBS_DEB_JOIN, "common rates", intersection, num_rates);
72 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
74 if (!priv->enablehwauto) {
75 for (i = 0; i < num_rates; i++) {
76 if (intersection[i] == priv->cur_rate)
79 lbs_pr_alert("Previously set fixed data rate %#x isn't "
80 "compatible with the network.\n", priv->cur_rate);
85 memset(rates, 0, *rates_size);
86 *rates_size = num_rates;
87 memcpy(rates, intersection, num_rates);
93 * @brief Sets the MSB on basic rates as the firmware requires
95 * Scan through an array and set the MSB for basic data rates.
97 * @param rates buffer of data rates
98 * @param len size of buffer
100 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
104 for (i = 0; i < len; i++) {
105 if (rates[i] == 0x02 || rates[i] == 0x04 ||
106 rates[i] == 0x0b || rates[i] == 0x16)
112 static u8 iw_auth_to_ieee_auth(u8 auth)
114 if (auth == IW_AUTH_ALG_OPEN_SYSTEM)
116 else if (auth == IW_AUTH_ALG_SHARED_KEY)
118 else if (auth == IW_AUTH_ALG_LEAP)
121 lbs_deb_join("%s: invalid auth alg 0x%X\n", __func__, auth);
126 * @brief This function prepares the authenticate command. AUTHENTICATE only
127 * sets the authentication suite for future associations, as the firmware
128 * handles authentication internally during the ASSOCIATE command.
130 * @param priv A pointer to struct lbs_private structure
131 * @param bssid The peer BSSID with which to authenticate
132 * @param auth The authentication mode to use (from wireless.h)
136 static int lbs_set_authentication(struct lbs_private *priv, u8 bssid[6], u8 auth)
138 struct cmd_ds_802_11_authenticate cmd;
141 lbs_deb_enter(LBS_DEB_JOIN);
143 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
144 memcpy(cmd.bssid, bssid, ETH_ALEN);
146 cmd.authtype = iw_auth_to_ieee_auth(auth);
148 lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n", bssid, cmd.authtype);
150 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
152 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
157 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
158 struct assoc_request *assoc)
160 struct cmd_ds_802_11_set_wep cmd;
163 lbs_deb_enter(LBS_DEB_CMD);
165 memset(&cmd, 0, sizeof(cmd));
166 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
167 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
169 cmd.action = cpu_to_le16(cmd_action);
171 if (cmd_action == CMD_ACT_ADD) {
174 /* default tx key index */
175 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
176 CMD_WEP_KEY_INDEX_MASK);
178 /* Copy key types and material to host command structure */
179 for (i = 0; i < 4; i++) {
180 struct enc_key *pkey = &assoc->wep_keys[i];
184 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
185 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
186 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
188 case KEY_LEN_WEP_104:
189 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
190 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
191 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
196 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
203 } else if (cmd_action == CMD_ACT_REMOVE) {
204 /* ACT_REMOVE clears _all_ WEP keys */
206 /* default tx key index */
207 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
208 CMD_WEP_KEY_INDEX_MASK);
209 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
212 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
214 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
218 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
221 struct cmd_ds_802_11_enable_rsn cmd;
224 lbs_deb_enter(LBS_DEB_CMD);
226 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
227 cmd.action = cpu_to_le16(cmd_action);
229 if (cmd_action == CMD_ACT_GET)
233 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
235 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
236 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
239 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
240 if (!ret && cmd_action == CMD_ACT_GET)
241 *enable = le16_to_cpu(cmd.enable);
243 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
247 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
250 lbs_deb_enter(LBS_DEB_CMD);
252 if (key->flags & KEY_INFO_WPA_ENABLED)
253 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
254 if (key->flags & KEY_INFO_WPA_UNICAST)
255 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
256 if (key->flags & KEY_INFO_WPA_MCAST)
257 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
259 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
260 keyparam->keytypeid = cpu_to_le16(key->type);
261 keyparam->keylen = cpu_to_le16(key->len);
262 memcpy(keyparam->key, key->key, key->len);
264 /* Length field doesn't include the {type,length} header */
265 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
266 lbs_deb_leave(LBS_DEB_CMD);
269 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
270 struct assoc_request *assoc)
272 struct cmd_ds_802_11_key_material cmd;
276 lbs_deb_enter(LBS_DEB_CMD);
278 cmd.action = cpu_to_le16(cmd_action);
279 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
281 if (cmd_action == CMD_ACT_GET) {
282 cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_header) + 2);
284 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
286 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
287 set_one_wpa_key(&cmd.keyParamSet[index],
288 &assoc->wpa_unicast_key);
292 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
293 set_one_wpa_key(&cmd.keyParamSet[index],
294 &assoc->wpa_mcast_key);
298 /* The common header and as many keys as we included */
299 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
300 keyParamSet[index]));
302 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
303 /* Copy the returned key to driver private data */
304 if (!ret && cmd_action == CMD_ACT_GET) {
305 void *buf_ptr = cmd.keyParamSet;
306 void *resp_end = &(&cmd)[1];
308 while (buf_ptr < resp_end) {
309 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
311 uint16_t param_set_len = le16_to_cpu(keyparam->length);
312 uint16_t key_len = le16_to_cpu(keyparam->keylen);
313 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
314 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
317 end = (void *)keyparam + sizeof(keyparam->type)
318 + sizeof(keyparam->length) + param_set_len;
320 /* Make sure we don't access past the end of the IEs */
324 if (key_flags & KEY_INFO_WPA_UNICAST)
325 key = &priv->wpa_unicast_key;
326 else if (key_flags & KEY_INFO_WPA_MCAST)
327 key = &priv->wpa_mcast_key;
331 /* Copy returned key into driver */
332 memset(key, 0, sizeof(struct enc_key));
333 if (key_len > sizeof(key->key))
335 key->type = key_type;
336 key->flags = key_flags;
338 memcpy(key->key, keyparam->key, key->len);
344 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
348 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
368 int i = lbs_data_rate_to_fw_index(rate);
370 ratemask = (0x1fef >> (12 - i));
373 return cpu_to_le16(ratemask);
376 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
379 struct cmd_ds_802_11_rate_adapt_rateset cmd;
382 lbs_deb_enter(LBS_DEB_CMD);
384 if (!priv->cur_rate && !priv->enablehwauto)
387 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
389 cmd.action = cpu_to_le16(cmd_action);
390 cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
391 cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
392 ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
393 if (!ret && cmd_action == CMD_ACT_GET)
394 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
396 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
401 * @brief Set the data rate
403 * @param priv A pointer to struct lbs_private structure
404 * @param rate The desired data rate, or 0 to clear a locked rate
406 * @return 0 on success, error on failure
408 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
410 struct cmd_ds_802_11_data_rate cmd;
413 lbs_deb_enter(LBS_DEB_CMD);
415 memset(&cmd, 0, sizeof(cmd));
416 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
419 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
420 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
421 if (cmd.rates[0] == 0) {
422 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
427 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
429 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
430 lbs_deb_cmd("DATA_RATE: setting auto\n");
433 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
437 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof(cmd));
439 /* FIXME: get actual rates FW can do if this command actually returns
440 * all data rates supported.
442 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
443 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
446 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
451 int lbs_cmd_802_11_rssi(struct lbs_private *priv,
452 struct cmd_ds_command *cmd)
455 lbs_deb_enter(LBS_DEB_CMD);
456 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
457 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) +
458 sizeof(struct cmd_header));
459 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
461 /* reset Beacon SNR/NF/RSSI values */
462 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
463 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
464 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
465 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
466 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
467 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
469 lbs_deb_leave(LBS_DEB_CMD);
473 int lbs_ret_802_11_rssi(struct lbs_private *priv,
474 struct cmd_ds_command *resp)
476 struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
478 lbs_deb_enter(LBS_DEB_CMD);
480 /* store the non average value */
481 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->SNR);
482 priv->NF[TYPE_BEACON][TYPE_NOAVG] =
483 get_unaligned_le16(&rssirsp->noisefloor);
485 priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgSNR);
486 priv->NF[TYPE_BEACON][TYPE_AVG] =
487 get_unaligned_le16(&rssirsp->avgnoisefloor);
489 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
490 CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
491 priv->NF[TYPE_BEACON][TYPE_NOAVG]);
493 priv->RSSI[TYPE_BEACON][TYPE_AVG] =
494 CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
495 priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
497 lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
498 priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
499 priv->RSSI[TYPE_BEACON][TYPE_AVG]);
501 lbs_deb_leave(LBS_DEB_CMD);
506 int lbs_cmd_bcn_ctrl(struct lbs_private *priv,
507 struct cmd_ds_command *cmd,
510 struct cmd_ds_802_11_beacon_control
511 *bcn_ctrl = &cmd->params.bcn_ctrl;
513 lbs_deb_enter(LBS_DEB_CMD);
515 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
516 + sizeof(struct cmd_header));
517 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
519 bcn_ctrl->action = cpu_to_le16(cmd_action);
520 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
521 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
523 lbs_deb_leave(LBS_DEB_CMD);
527 int lbs_ret_802_11_bcn_ctrl(struct lbs_private *priv,
528 struct cmd_ds_command *resp)
530 struct cmd_ds_802_11_beacon_control *bcn_ctrl =
531 &resp->params.bcn_ctrl;
533 lbs_deb_enter(LBS_DEB_CMD);
535 if (bcn_ctrl->action == CMD_ACT_GET) {
536 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
537 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
540 lbs_deb_enter(LBS_DEB_CMD);
546 static int lbs_assoc_post(struct lbs_private *priv,
547 struct cmd_ds_802_11_associate_response *resp)
550 union iwreq_data wrqu;
551 struct bss_descriptor *bss;
554 lbs_deb_enter(LBS_DEB_ASSOC);
556 if (!priv->in_progress_assoc_req) {
557 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
561 bss = &priv->in_progress_assoc_req->bss;
564 * Older FW versions map the IEEE 802.11 Status Code in the association
565 * response to the following values returned in resp->statuscode:
567 * IEEE Status Code Marvell Status Code
568 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
569 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
570 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
571 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
572 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
573 * others -> 0x0003 ASSOC_RESULT_REFUSED
575 * Other response codes:
576 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
577 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
578 * association response from the AP)
581 status_code = le16_to_cpu(resp->statuscode);
582 if (priv->fwrelease < 0x09000000) {
583 switch (status_code) {
587 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
590 lbs_deb_assoc("ASSOC_RESP: internal timer "
591 "expired while waiting for the AP\n");
594 lbs_deb_assoc("ASSOC_RESP: association "
598 lbs_deb_assoc("ASSOC_RESP: authentication "
602 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
603 " unknown\n", status_code);
607 /* v9+ returns the AP's association response */
608 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x\n", status_code);
612 lbs_mac_event_disconnected(priv);
617 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP",
618 (void *) (resp + sizeof (resp->hdr)),
619 le16_to_cpu(resp->hdr.size) - sizeof (resp->hdr));
621 /* Send a Media Connected event, according to the Spec */
622 priv->connect_status = LBS_CONNECTED;
624 /* Update current SSID and BSSID */
625 memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN);
626 priv->curbssparams.ssid_len = bss->ssid_len;
627 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
629 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
630 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
632 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
633 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
637 netif_carrier_on(priv->dev);
638 if (!priv->tx_pending_len)
639 netif_wake_queue(priv->dev);
641 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
642 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
643 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
646 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
651 * @brief This function prepares an association-class command.
653 * @param priv A pointer to struct lbs_private structure
654 * @param assoc_req The association request describing the BSS to associate
655 * or reassociate with
656 * @param command The actual command, either CMD_802_11_ASSOCIATE or
657 * CMD_802_11_REASSOCIATE
661 static int lbs_associate(struct lbs_private *priv,
662 struct assoc_request *assoc_req,
665 struct cmd_ds_802_11_associate cmd;
667 struct bss_descriptor *bss = &assoc_req->bss;
668 u8 *pos = &(cmd.iebuf[0]);
669 u16 tmpcap, tmplen, tmpauth;
670 struct mrvl_ie_ssid_param_set *ssid;
671 struct mrvl_ie_ds_param_set *ds;
672 struct mrvl_ie_cf_param_set *cf;
673 struct mrvl_ie_rates_param_set *rates;
674 struct mrvl_ie_rsn_param_set *rsn;
675 struct mrvl_ie_auth_type *auth;
677 lbs_deb_enter(LBS_DEB_ASSOC);
679 BUG_ON((command != CMD_802_11_ASSOCIATE) &&
680 (command != CMD_802_11_REASSOCIATE));
682 memset(&cmd, 0, sizeof(cmd));
683 cmd.hdr.command = cpu_to_le16(command);
685 /* Fill in static fields */
686 memcpy(cmd.bssid, bss->bssid, ETH_ALEN);
687 cmd.listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
689 /* Capability info */
690 tmpcap = (bss->capability & CAPINFO_MASK);
691 if (bss->mode == IW_MODE_INFRA)
692 tmpcap |= WLAN_CAPABILITY_ESS;
693 cmd.capability = cpu_to_le16(tmpcap);
694 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
697 ssid = (struct mrvl_ie_ssid_param_set *) pos;
698 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
699 tmplen = bss->ssid_len;
700 ssid->header.len = cpu_to_le16(tmplen);
701 memcpy(ssid->ssid, bss->ssid, tmplen);
702 pos += sizeof(ssid->header) + tmplen;
704 ds = (struct mrvl_ie_ds_param_set *) pos;
705 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
706 ds->header.len = cpu_to_le16(1);
707 ds->channel = bss->phy.ds.channel;
708 pos += sizeof(ds->header) + 1;
710 cf = (struct mrvl_ie_cf_param_set *) pos;
711 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
712 tmplen = sizeof(*cf) - sizeof (cf->header);
713 cf->header.len = cpu_to_le16(tmplen);
714 /* IE payload should be zeroed, firmware fills it in for us */
717 rates = (struct mrvl_ie_rates_param_set *) pos;
718 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
719 tmplen = min_t(u16, ARRAY_SIZE(bss->rates), MAX_RATES);
720 memcpy(&rates->rates, &bss->rates, tmplen);
721 if (get_common_rates(priv, rates->rates, &tmplen)) {
725 pos += sizeof(rates->header) + tmplen;
726 rates->header.len = cpu_to_le16(tmplen);
727 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
729 /* Copy the infra. association rates into Current BSS state structure */
730 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
731 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
733 /* Set MSB on basic rates as the firmware requires, but _after_
734 * copying to current bss rates.
736 lbs_set_basic_rate_flags(rates->rates, tmplen);
738 /* Firmware v9+ indicate authentication suites as a TLV */
739 if (priv->fwrelease >= 0x09000000) {
740 auth = (struct mrvl_ie_auth_type *) pos;
741 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
742 auth->header.len = cpu_to_le16(2);
743 tmpauth = iw_auth_to_ieee_auth(priv->secinfo.auth_mode);
744 auth->auth = cpu_to_le16(tmpauth);
745 pos += sizeof(auth->header) + 2;
747 lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n",
748 bss->bssid, priv->secinfo.auth_mode);
752 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
753 rsn = (struct mrvl_ie_rsn_param_set *) pos;
754 /* WPA_IE or WPA2_IE */
755 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
756 tmplen = (u16) assoc_req->wpa_ie[1];
757 rsn->header.len = cpu_to_le16(tmplen);
758 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
759 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: WPA/RSN IE", (u8 *) rsn,
760 sizeof(rsn->header) + tmplen);
761 pos += sizeof(rsn->header) + tmplen;
764 cmd.hdr.size = cpu_to_le16((sizeof(cmd) - sizeof(cmd.iebuf)) +
765 (u16)(pos - (u8 *) &cmd.iebuf));
767 /* update curbssparams */
768 priv->channel = bss->phy.ds.channel;
770 ret = lbs_cmd_with_response(priv, command, &cmd);
772 ret = lbs_assoc_post(priv,
773 (struct cmd_ds_802_11_associate_response *) &cmd);
777 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
782 * @brief Associate to a specific BSS discovered in a scan
784 * @param priv A pointer to struct lbs_private structure
785 * @param assoc_req The association request describing the BSS to associate with
787 * @return 0-success, otherwise fail
789 static int lbs_try_associate(struct lbs_private *priv,
790 struct assoc_request *assoc_req)
793 u8 preamble = RADIO_PREAMBLE_LONG;
795 lbs_deb_enter(LBS_DEB_ASSOC);
797 /* FW v9 and higher indicate authentication suites as a TLV in the
798 * association command, not as a separate authentication command.
800 if (priv->fwrelease < 0x09000000) {
801 ret = lbs_set_authentication(priv, assoc_req->bss.bssid,
802 priv->secinfo.auth_mode);
807 /* Use short preamble only when both the BSS and firmware support it */
808 if (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
809 preamble = RADIO_PREAMBLE_SHORT;
811 ret = lbs_set_radio(priv, preamble, 1);
815 ret = lbs_associate(priv, assoc_req, CMD_802_11_ASSOCIATE);
818 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
822 static int lbs_adhoc_post(struct lbs_private *priv,
823 struct cmd_ds_802_11_ad_hoc_result *resp)
826 u16 command = le16_to_cpu(resp->hdr.command);
827 u16 result = le16_to_cpu(resp->hdr.result);
828 union iwreq_data wrqu;
829 struct bss_descriptor *bss;
830 DECLARE_SSID_BUF(ssid);
832 lbs_deb_enter(LBS_DEB_JOIN);
834 if (!priv->in_progress_assoc_req) {
835 lbs_deb_join("ADHOC_RESP: no in-progress association "
840 bss = &priv->in_progress_assoc_req->bss;
843 * Join result code 0 --> SUCCESS
846 lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result);
847 if (priv->connect_status == LBS_CONNECTED)
848 lbs_mac_event_disconnected(priv);
853 /* Send a Media Connected event, according to the Spec */
854 priv->connect_status = LBS_CONNECTED;
856 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
857 /* Update the created network descriptor with the new BSSID */
858 memcpy(bss->bssid, resp->bssid, ETH_ALEN);
861 /* Set the BSSID from the joined/started descriptor */
862 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
864 /* Set the new SSID to current SSID */
865 memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN);
866 priv->curbssparams.ssid_len = bss->ssid_len;
868 netif_carrier_on(priv->dev);
869 if (!priv->tx_pending_len)
870 netif_wake_queue(priv->dev);
872 memset(&wrqu, 0, sizeof(wrqu));
873 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
874 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
875 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
877 lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %pM, channel %d\n",
878 print_ssid(ssid, bss->ssid, bss->ssid_len),
879 priv->curbssparams.bssid,
883 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
888 * @brief Join an adhoc network found in a previous scan
890 * @param priv A pointer to struct lbs_private structure
891 * @param assoc_req The association request describing the BSS to join
893 * @return 0 on success, error on failure
895 static int lbs_adhoc_join(struct lbs_private *priv,
896 struct assoc_request *assoc_req)
898 struct cmd_ds_802_11_ad_hoc_join cmd;
899 struct bss_descriptor *bss = &assoc_req->bss;
900 u8 preamble = RADIO_PREAMBLE_LONG;
901 DECLARE_SSID_BUF(ssid);
905 lbs_deb_enter(LBS_DEB_ASSOC);
907 lbs_deb_join("current SSID '%s', ssid length %u\n",
908 print_ssid(ssid, priv->curbssparams.ssid,
909 priv->curbssparams.ssid_len),
910 priv->curbssparams.ssid_len);
911 lbs_deb_join("requested ssid '%s', ssid length %u\n",
912 print_ssid(ssid, bss->ssid, bss->ssid_len),
915 /* check if the requested SSID is already joined */
916 if (priv->curbssparams.ssid_len &&
917 !lbs_ssid_cmp(priv->curbssparams.ssid,
918 priv->curbssparams.ssid_len,
919 bss->ssid, bss->ssid_len) &&
920 (priv->mode == IW_MODE_ADHOC) &&
921 (priv->connect_status == LBS_CONNECTED)) {
922 union iwreq_data wrqu;
924 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
925 "current, not attempting to re-join");
927 /* Send the re-association event though, because the association
928 * request really was successful, even if just a null-op.
930 memset(&wrqu, 0, sizeof(wrqu));
931 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
933 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
934 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
938 /* Use short preamble only when both the BSS and firmware support it */
939 if (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
940 lbs_deb_join("AdhocJoin: Short preamble\n");
941 preamble = RADIO_PREAMBLE_SHORT;
944 ret = lbs_set_radio(priv, preamble, 1);
948 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
949 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
951 priv->adhoccreate = 0;
952 priv->channel = bss->channel;
954 /* Build the join command */
955 memset(&cmd, 0, sizeof(cmd));
956 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
958 cmd.bss.type = CMD_BSS_TYPE_IBSS;
959 cmd.bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
961 memcpy(&cmd.bss.bssid, &bss->bssid, ETH_ALEN);
962 memcpy(&cmd.bss.ssid, &bss->ssid, bss->ssid_len);
964 memcpy(&cmd.bss.ds, &bss->phy.ds, sizeof(struct ieee_ie_ds_param_set));
966 memcpy(&cmd.bss.ibss, &bss->ss.ibss,
967 sizeof(struct ieee_ie_ibss_param_set));
969 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
970 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
971 bss->capability, CAPINFO_MASK);
973 /* information on BSSID descriptor passed to FW */
974 lbs_deb_join("ADHOC_J_CMD: BSSID = %pM, SSID = '%s'\n",
975 cmd.bss.bssid, cmd.bss.ssid);
977 /* Only v8 and below support setting these */
978 if (priv->fwrelease < 0x09000000) {
980 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
982 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
985 /* Copy Data rates from the rates recorded in scan response */
986 memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
987 ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), ARRAY_SIZE (bss->rates));
988 memcpy(cmd.bss.rates, bss->rates, ratesize);
989 if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
990 lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
995 /* Copy the ad-hoc creation rates into Current BSS state structure */
996 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
997 memcpy(&priv->curbssparams.rates, cmd.bss.rates, ratesize);
999 /* Set MSB on basic rates as the firmware requires, but _after_
1000 * copying to current bss rates.
1002 lbs_set_basic_rate_flags(cmd.bss.rates, ratesize);
1004 cmd.bss.ibss.atimwindow = bss->atimwindow;
1006 if (assoc_req->secinfo.wep_enabled) {
1007 u16 tmp = le16_to_cpu(cmd.bss.capability);
1008 tmp |= WLAN_CAPABILITY_PRIVACY;
1009 cmd.bss.capability = cpu_to_le16(tmp);
1012 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1013 __le32 local_ps_mode = cpu_to_le32(LBS802_11POWERMODECAM);
1016 ret = lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1025 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1027 ret = lbs_adhoc_post(priv,
1028 (struct cmd_ds_802_11_ad_hoc_result *)&cmd);
1032 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1037 * @brief Start an Adhoc Network
1039 * @param priv A pointer to struct lbs_private structure
1040 * @param assoc_req The association request describing the BSS to start
1042 * @return 0 on success, error on failure
1044 static int lbs_adhoc_start(struct lbs_private *priv,
1045 struct assoc_request *assoc_req)
1047 struct cmd_ds_802_11_ad_hoc_start cmd;
1048 u8 preamble = RADIO_PREAMBLE_SHORT;
1049 size_t ratesize = 0;
1052 DECLARE_SSID_BUF(ssid);
1054 lbs_deb_enter(LBS_DEB_ASSOC);
1056 ret = lbs_set_radio(priv, preamble, 1);
1060 /* Build the start command */
1061 memset(&cmd, 0, sizeof(cmd));
1062 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1064 memcpy(cmd.ssid, assoc_req->ssid, assoc_req->ssid_len);
1066 lbs_deb_join("ADHOC_START: SSID '%s', ssid length %u\n",
1067 print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len),
1068 assoc_req->ssid_len);
1070 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1072 if (priv->beacon_period == 0)
1073 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
1074 cmd.beaconperiod = cpu_to_le16(priv->beacon_period);
1076 WARN_ON(!assoc_req->channel);
1078 /* set Physical parameter set */
1079 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1080 cmd.ds.header.len = 1;
1081 cmd.ds.channel = assoc_req->channel;
1083 /* set IBSS parameter set */
1084 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1085 cmd.ibss.header.len = 2;
1086 cmd.ibss.atimwindow = cpu_to_le16(0);
1088 /* set capability info */
1089 tmpcap = WLAN_CAPABILITY_IBSS;
1090 if (assoc_req->secinfo.wep_enabled ||
1091 assoc_req->secinfo.WPAenabled ||
1092 assoc_req->secinfo.WPA2enabled) {
1093 lbs_deb_join("ADHOC_START: WEP/WPA enabled, privacy on\n");
1094 tmpcap |= WLAN_CAPABILITY_PRIVACY;
1096 lbs_deb_join("ADHOC_START: WEP disabled, privacy off\n");
1098 cmd.capability = cpu_to_le16(tmpcap);
1100 /* Only v8 and below support setting probe delay */
1101 if (priv->fwrelease < 0x09000000)
1102 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1104 ratesize = min(sizeof(cmd.rates), sizeof(lbs_bg_rates));
1105 memcpy(cmd.rates, lbs_bg_rates, ratesize);
1107 /* Copy the ad-hoc creating rates into Current BSS state structure */
1108 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
1109 memcpy(&priv->curbssparams.rates, &cmd.rates, ratesize);
1111 /* Set MSB on basic rates as the firmware requires, but _after_
1112 * copying to current bss rates.
1114 lbs_set_basic_rate_flags(cmd.rates, ratesize);
1116 lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n",
1117 cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]);
1119 lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n",
1120 assoc_req->channel, assoc_req->band);
1122 priv->adhoccreate = 1;
1123 priv->mode = IW_MODE_ADHOC;
1125 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1127 ret = lbs_adhoc_post(priv,
1128 (struct cmd_ds_802_11_ad_hoc_result *)&cmd);
1131 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1136 * @brief Stop and Ad-Hoc network and exit Ad-Hoc mode
1138 * @param priv A pointer to struct lbs_private structure
1139 * @return 0 on success, or an error
1141 int lbs_adhoc_stop(struct lbs_private *priv)
1143 struct cmd_ds_802_11_ad_hoc_stop cmd;
1146 lbs_deb_enter(LBS_DEB_JOIN);
1148 memset(&cmd, 0, sizeof (cmd));
1149 cmd.hdr.size = cpu_to_le16 (sizeof (cmd));
1151 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1153 /* Clean up everything even if there was an error */
1154 lbs_mac_event_disconnected(priv);
1156 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1160 static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
1161 struct bss_descriptor *match_bss)
1163 if (!secinfo->wep_enabled &&
1164 !secinfo->WPAenabled && !secinfo->WPA2enabled &&
1165 match_bss->wpa_ie[0] != WLAN_EID_GENERIC &&
1166 match_bss->rsn_ie[0] != WLAN_EID_RSN &&
1167 !(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
1173 static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
1174 struct bss_descriptor *match_bss)
1176 if (secinfo->wep_enabled &&
1177 !secinfo->WPAenabled && !secinfo->WPA2enabled &&
1178 (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
1184 static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
1185 struct bss_descriptor *match_bss)
1187 if (!secinfo->wep_enabled && secinfo->WPAenabled &&
1188 (match_bss->wpa_ie[0] == WLAN_EID_GENERIC)
1189 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
1190 && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
1197 static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
1198 struct bss_descriptor *match_bss)
1200 if (!secinfo->wep_enabled && secinfo->WPA2enabled &&
1201 (match_bss->rsn_ie[0] == WLAN_EID_RSN)
1202 /* privacy bit may NOT be set in some APs like LinkSys WRT54G
1203 (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
1210 static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
1211 struct bss_descriptor *match_bss)
1213 if (!secinfo->wep_enabled &&
1214 !secinfo->WPAenabled && !secinfo->WPA2enabled &&
1215 (match_bss->wpa_ie[0] != WLAN_EID_GENERIC) &&
1216 (match_bss->rsn_ie[0] != WLAN_EID_RSN) &&
1217 (match_bss->capability & WLAN_CAPABILITY_PRIVACY))
1224 * @brief Check if a scanned network compatible with the driver settings
1226 * WEP WPA WPA2 ad-hoc encrypt Network
1227 * enabled enabled enabled AES mode privacy WPA WPA2 Compatible
1228 * 0 0 0 0 NONE 0 0 0 yes No security
1229 * 1 0 0 0 NONE 1 0 0 yes Static WEP
1230 * 0 1 0 0 x 1x 1 x yes WPA
1231 * 0 0 1 0 x 1x x 1 yes WPA2
1232 * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
1233 * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
1236 * @param priv A pointer to struct lbs_private
1237 * @param index Index in scantable to check against current driver settings
1238 * @param mode Network mode: Infrastructure or IBSS
1240 * @return Index in scantable, or error code if negative
1242 static int is_network_compatible(struct lbs_private *priv,
1243 struct bss_descriptor *bss, uint8_t mode)
1247 lbs_deb_enter(LBS_DEB_SCAN);
1249 if (bss->mode != mode)
1252 matched = match_bss_no_security(&priv->secinfo, bss);
1255 matched = match_bss_static_wep(&priv->secinfo, bss);
1258 matched = match_bss_wpa(&priv->secinfo, bss);
1260 lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x "
1261 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
1262 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
1263 priv->secinfo.wep_enabled ? "e" : "d",
1264 priv->secinfo.WPAenabled ? "e" : "d",
1265 priv->secinfo.WPA2enabled ? "e" : "d",
1266 (bss->capability & WLAN_CAPABILITY_PRIVACY));
1269 matched = match_bss_wpa2(&priv->secinfo, bss);
1271 lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x "
1272 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
1273 "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
1274 priv->secinfo.wep_enabled ? "e" : "d",
1275 priv->secinfo.WPAenabled ? "e" : "d",
1276 priv->secinfo.WPA2enabled ? "e" : "d",
1277 (bss->capability & WLAN_CAPABILITY_PRIVACY));
1280 matched = match_bss_dynamic_wep(&priv->secinfo, bss);
1282 lbs_deb_scan("is_network_compatible() dynamic WEP: "
1283 "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n",
1284 bss->wpa_ie[0], bss->rsn_ie[0],
1285 (bss->capability & WLAN_CAPABILITY_PRIVACY));
1289 /* bss security settings don't match those configured on card */
1290 lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x "
1291 "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n",
1292 bss->wpa_ie[0], bss->rsn_ie[0],
1293 priv->secinfo.wep_enabled ? "e" : "d",
1294 priv->secinfo.WPAenabled ? "e" : "d",
1295 priv->secinfo.WPA2enabled ? "e" : "d",
1296 (bss->capability & WLAN_CAPABILITY_PRIVACY));
1299 lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
1304 * @brief This function finds a specific compatible BSSID in the scan list
1306 * Used in association code
1308 * @param priv A pointer to struct lbs_private
1309 * @param bssid BSSID to find in the scan list
1310 * @param mode Network mode: Infrastructure or IBSS
1312 * @return index in BSSID list, or error return code (< 0)
1314 static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
1315 uint8_t *bssid, uint8_t mode)
1317 struct bss_descriptor *iter_bss;
1318 struct bss_descriptor *found_bss = NULL;
1320 lbs_deb_enter(LBS_DEB_SCAN);
1325 lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN);
1327 /* Look through the scan table for a compatible match. The loop will
1328 * continue past a matched bssid that is not compatible in case there
1329 * is an AP with multiple SSIDs assigned to the same BSSID
1331 mutex_lock(&priv->lock);
1332 list_for_each_entry(iter_bss, &priv->network_list, list) {
1333 if (compare_ether_addr(iter_bss->bssid, bssid))
1334 continue; /* bssid doesn't match */
1338 if (!is_network_compatible(priv, iter_bss, mode))
1340 found_bss = iter_bss;
1343 found_bss = iter_bss;
1347 mutex_unlock(&priv->lock);
1350 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
1355 * @brief This function finds ssid in ssid list.
1357 * Used in association code
1359 * @param priv A pointer to struct lbs_private
1360 * @param ssid SSID to find in the list
1361 * @param bssid BSSID to qualify the SSID selection (if provided)
1362 * @param mode Network mode: Infrastructure or IBSS
1364 * @return index in BSSID list
1366 static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
1367 uint8_t *ssid, uint8_t ssid_len,
1368 uint8_t *bssid, uint8_t mode,
1372 struct bss_descriptor *iter_bss = NULL;
1373 struct bss_descriptor *found_bss = NULL;
1374 struct bss_descriptor *tmp_oldest = NULL;
1376 lbs_deb_enter(LBS_DEB_SCAN);
1378 mutex_lock(&priv->lock);
1380 list_for_each_entry(iter_bss, &priv->network_list, list) {
1382 (iter_bss->last_scanned < tmp_oldest->last_scanned))
1383 tmp_oldest = iter_bss;
1385 if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
1386 ssid, ssid_len) != 0)
1387 continue; /* ssid doesn't match */
1388 if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
1389 continue; /* bssid doesn't match */
1390 if ((channel > 0) && (iter_bss->channel != channel))
1391 continue; /* channel doesn't match */
1396 if (!is_network_compatible(priv, iter_bss, mode))
1400 /* Found requested BSSID */
1401 found_bss = iter_bss;
1405 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
1406 bestrssi = SCAN_RSSI(iter_bss->rssi);
1407 found_bss = iter_bss;
1412 if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
1413 bestrssi = SCAN_RSSI(iter_bss->rssi);
1414 found_bss = iter_bss;
1421 mutex_unlock(&priv->lock);
1422 lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
1426 static int assoc_helper_essid(struct lbs_private *priv,
1427 struct assoc_request * assoc_req)
1430 struct bss_descriptor * bss;
1432 DECLARE_SSID_BUF(ssid);
1434 lbs_deb_enter(LBS_DEB_ASSOC);
1436 /* FIXME: take channel into account when picking SSIDs if a channel
1440 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
1441 channel = assoc_req->channel;
1443 lbs_deb_assoc("SSID '%s' requested\n",
1444 print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len));
1445 if (assoc_req->mode == IW_MODE_INFRA) {
1446 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
1447 assoc_req->ssid_len);
1449 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
1450 assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
1452 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
1453 ret = lbs_try_associate(priv, assoc_req);
1455 lbs_deb_assoc("SSID not found; cannot associate\n");
1457 } else if (assoc_req->mode == IW_MODE_ADHOC) {
1458 /* Scan for the network, do not save previous results. Stale
1459 * scan data will cause us to join a non-existant adhoc network
1461 lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
1462 assoc_req->ssid_len);
1464 /* Search for the requested SSID in the scan table */
1465 bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
1466 assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
1468 lbs_deb_assoc("SSID found, will join\n");
1469 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
1470 lbs_adhoc_join(priv, assoc_req);
1472 /* else send START command */
1473 lbs_deb_assoc("SSID not found, creating adhoc network\n");
1474 memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
1475 IEEE80211_MAX_SSID_LEN);
1476 assoc_req->bss.ssid_len = assoc_req->ssid_len;
1477 lbs_adhoc_start(priv, assoc_req);
1481 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1486 static int assoc_helper_bssid(struct lbs_private *priv,
1487 struct assoc_request * assoc_req)
1490 struct bss_descriptor * bss;
1492 lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %pM", assoc_req->bssid);
1494 /* Search for index position in list for requested MAC */
1495 bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
1498 lbs_deb_assoc("ASSOC: WAP: BSSID %pM not found, "
1499 "cannot associate.\n", assoc_req->bssid);
1503 memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
1504 if (assoc_req->mode == IW_MODE_INFRA) {
1505 ret = lbs_try_associate(priv, assoc_req);
1506 lbs_deb_assoc("ASSOC: lbs_try_associate(bssid) returned %d\n",
1508 } else if (assoc_req->mode == IW_MODE_ADHOC) {
1509 lbs_adhoc_join(priv, assoc_req);
1513 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1518 static int assoc_helper_associate(struct lbs_private *priv,
1519 struct assoc_request * assoc_req)
1521 int ret = 0, done = 0;
1523 lbs_deb_enter(LBS_DEB_ASSOC);
1525 /* If we're given and 'any' BSSID, try associating based on SSID */
1527 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1528 if (compare_ether_addr(bssid_any, assoc_req->bssid) &&
1529 compare_ether_addr(bssid_off, assoc_req->bssid)) {
1530 ret = assoc_helper_bssid(priv, assoc_req);
1535 if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1536 ret = assoc_helper_essid(priv, assoc_req);
1539 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1544 static int assoc_helper_mode(struct lbs_private *priv,
1545 struct assoc_request * assoc_req)
1549 lbs_deb_enter(LBS_DEB_ASSOC);
1551 if (assoc_req->mode == priv->mode)
1554 if (assoc_req->mode == IW_MODE_INFRA) {
1555 if (priv->psstate != PS_STATE_FULL_POWER)
1556 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1557 priv->psmode = LBS802_11POWERMODECAM;
1560 priv->mode = assoc_req->mode;
1561 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE,
1562 assoc_req->mode == IW_MODE_ADHOC ? 2 : 1);
1565 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1569 static int assoc_helper_channel(struct lbs_private *priv,
1570 struct assoc_request * assoc_req)
1574 lbs_deb_enter(LBS_DEB_ASSOC);
1576 ret = lbs_update_channel(priv);
1578 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
1582 if (assoc_req->channel == priv->channel)
1585 if (priv->mesh_dev) {
1586 /* Change mesh channel first; 21.p21 firmware won't let
1587 you change channel otherwise (even though it'll return
1589 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
1590 assoc_req->channel);
1593 lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
1594 priv->channel, assoc_req->channel);
1596 ret = lbs_set_channel(priv, assoc_req->channel);
1598 lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
1600 /* FIXME: shouldn't need to grab the channel _again_ after setting
1601 * it since the firmware is supposed to return the new channel, but
1603 ret = lbs_update_channel(priv);
1605 lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
1609 if (assoc_req->channel != priv->channel) {
1610 lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
1611 assoc_req->channel);
1615 if (assoc_req->secinfo.wep_enabled &&
1616 (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
1617 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)) {
1618 /* Make sure WEP keys are re-sent to firmware */
1619 set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
1622 /* Must restart/rejoin adhoc networks after channel change */
1623 set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
1627 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
1631 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1636 static int assoc_helper_wep_keys(struct lbs_private *priv,
1637 struct assoc_request *assoc_req)
1642 lbs_deb_enter(LBS_DEB_ASSOC);
1644 /* Set or remove WEP keys */
1645 if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
1646 assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
1647 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
1649 ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
1654 /* enable/disable the MAC's WEP packet filter */
1655 if (assoc_req->secinfo.wep_enabled)
1656 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1658 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1660 lbs_set_mac_control(priv);
1662 mutex_lock(&priv->lock);
1664 /* Copy WEP keys into priv wep key fields */
1665 for (i = 0; i < 4; i++) {
1666 memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
1667 sizeof(struct enc_key));
1669 priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
1671 mutex_unlock(&priv->lock);
1674 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1678 static int assoc_helper_secinfo(struct lbs_private *priv,
1679 struct assoc_request * assoc_req)
1685 lbs_deb_enter(LBS_DEB_ASSOC);
1687 memcpy(&priv->secinfo, &assoc_req->secinfo,
1688 sizeof(struct lbs_802_11_security));
1690 lbs_set_mac_control(priv);
1692 /* If RSN is already enabled, don't try to enable it again, since
1693 * ENABLE_RSN resets internal state machines and will clobber the
1694 * 4-way WPA handshake.
1697 /* Get RSN enabled/disabled */
1698 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
1700 lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
1704 /* Don't re-enable RSN if it's already enabled */
1705 do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
1709 /* Set RSN enabled/disabled */
1710 ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
1713 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1718 static int assoc_helper_wpa_keys(struct lbs_private *priv,
1719 struct assoc_request * assoc_req)
1722 unsigned int flags = assoc_req->flags;
1724 lbs_deb_enter(LBS_DEB_ASSOC);
1726 /* Work around older firmware bug where WPA unicast and multicast
1727 * keys must be set independently. Seen in SDIO parts with firmware
1731 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
1732 clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
1733 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
1734 assoc_req->flags = flags;
1740 memcpy(&priv->wpa_unicast_key, &assoc_req->wpa_unicast_key,
1741 sizeof(struct enc_key));
1743 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
1744 clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
1746 ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
1747 assoc_req->flags = flags;
1749 memcpy(&priv->wpa_mcast_key, &assoc_req->wpa_mcast_key,
1750 sizeof(struct enc_key));
1754 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1759 static int assoc_helper_wpa_ie(struct lbs_private *priv,
1760 struct assoc_request * assoc_req)
1764 lbs_deb_enter(LBS_DEB_ASSOC);
1766 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
1767 memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
1768 priv->wpa_ie_len = assoc_req->wpa_ie_len;
1770 memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
1771 priv->wpa_ie_len = 0;
1774 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1779 static int should_deauth_infrastructure(struct lbs_private *priv,
1780 struct assoc_request * assoc_req)
1784 if (priv->connect_status != LBS_CONNECTED)
1787 lbs_deb_enter(LBS_DEB_ASSOC);
1788 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
1789 lbs_deb_assoc("Deauthenticating due to new SSID\n");
1794 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
1795 if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
1796 lbs_deb_assoc("Deauthenticating due to new security\n");
1802 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1803 lbs_deb_assoc("Deauthenticating due to new BSSID\n");
1808 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1809 lbs_deb_assoc("Deauthenticating due to channel switch\n");
1814 /* FIXME: deal with 'auto' mode somehow */
1815 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1816 if (assoc_req->mode != IW_MODE_INFRA) {
1817 lbs_deb_assoc("Deauthenticating due to leaving "
1825 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
1830 static int should_stop_adhoc(struct lbs_private *priv,
1831 struct assoc_request * assoc_req)
1833 lbs_deb_enter(LBS_DEB_ASSOC);
1835 if (priv->connect_status != LBS_CONNECTED)
1838 if (lbs_ssid_cmp(priv->curbssparams.ssid,
1839 priv->curbssparams.ssid_len,
1840 assoc_req->ssid, assoc_req->ssid_len) != 0)
1843 /* FIXME: deal with 'auto' mode somehow */
1844 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
1845 if (assoc_req->mode != IW_MODE_ADHOC)
1849 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
1850 if (assoc_req->channel != priv->channel)
1854 lbs_deb_leave(LBS_DEB_ASSOC);
1860 * @brief This function finds the best SSID in the Scan List
1862 * Search the scan table for the best SSID that also matches the current
1863 * adapter network preference (infrastructure or adhoc)
1865 * @param priv A pointer to struct lbs_private
1867 * @return index in BSSID list
1869 static struct bss_descriptor *lbs_find_best_ssid_in_list(
1870 struct lbs_private *priv, uint8_t mode)
1872 uint8_t bestrssi = 0;
1873 struct bss_descriptor *iter_bss;
1874 struct bss_descriptor *best_bss = NULL;
1876 lbs_deb_enter(LBS_DEB_SCAN);
1878 mutex_lock(&priv->lock);
1880 list_for_each_entry(iter_bss, &priv->network_list, list) {
1884 if (!is_network_compatible(priv, iter_bss, mode))
1886 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1888 bestrssi = SCAN_RSSI(iter_bss->rssi);
1889 best_bss = iter_bss;
1893 if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
1895 bestrssi = SCAN_RSSI(iter_bss->rssi);
1896 best_bss = iter_bss;
1901 mutex_unlock(&priv->lock);
1902 lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
1907 * @brief Find the best AP
1909 * Used from association worker.
1911 * @param priv A pointer to struct lbs_private structure
1912 * @param pSSID A pointer to AP's ssid
1914 * @return 0--success, otherwise--fail
1916 static int lbs_find_best_network_ssid(struct lbs_private *priv,
1917 uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
1921 struct bss_descriptor *found;
1923 lbs_deb_enter(LBS_DEB_SCAN);
1925 priv->scan_ssid_len = 0;
1926 lbs_scan_networks(priv, 1);
1927 if (priv->surpriseremoved)
1930 found = lbs_find_best_ssid_in_list(priv, preferred_mode);
1931 if (found && (found->ssid_len > 0)) {
1932 memcpy(out_ssid, &found->ssid, IEEE80211_MAX_SSID_LEN);
1933 *out_ssid_len = found->ssid_len;
1934 *out_mode = found->mode;
1939 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
1944 void lbs_association_worker(struct work_struct *work)
1946 struct lbs_private *priv = container_of(work, struct lbs_private,
1948 struct assoc_request * assoc_req = NULL;
1950 int find_any_ssid = 0;
1951 DECLARE_SSID_BUF(ssid);
1953 lbs_deb_enter(LBS_DEB_ASSOC);
1955 mutex_lock(&priv->lock);
1956 assoc_req = priv->pending_assoc_req;
1957 priv->pending_assoc_req = NULL;
1958 priv->in_progress_assoc_req = assoc_req;
1959 mutex_unlock(&priv->lock);
1965 "Association Request:\n"
1972 " secinfo: %s%s%s\n"
1975 print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len),
1976 assoc_req->channel, assoc_req->band, assoc_req->mode,
1978 assoc_req->secinfo.WPAenabled ? " WPA" : "",
1979 assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
1980 assoc_req->secinfo.wep_enabled ? " WEP" : "",
1981 assoc_req->secinfo.auth_mode);
1983 /* If 'any' SSID was specified, find an SSID to associate with */
1984 if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags) &&
1985 !assoc_req->ssid_len)
1988 /* But don't use 'any' SSID if there's a valid locked BSSID to use */
1989 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
1990 if (compare_ether_addr(assoc_req->bssid, bssid_any) &&
1991 compare_ether_addr(assoc_req->bssid, bssid_off))
1995 if (find_any_ssid) {
1996 u8 new_mode = assoc_req->mode;
1998 ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
1999 &assoc_req->ssid_len, assoc_req->mode, &new_mode);
2001 lbs_deb_assoc("Could not find best network\n");
2006 /* Ensure we switch to the mode of the AP */
2007 if (assoc_req->mode == IW_MODE_AUTO) {
2008 set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
2009 assoc_req->mode = new_mode;
2014 * Check if the attributes being changing require deauthentication
2015 * from the currently associated infrastructure access point.
2017 if (priv->mode == IW_MODE_INFRA) {
2018 if (should_deauth_infrastructure(priv, assoc_req)) {
2019 ret = lbs_cmd_80211_deauthenticate(priv,
2020 priv->curbssparams.bssid,
2021 WLAN_REASON_DEAUTH_LEAVING);
2023 lbs_deb_assoc("Deauthentication due to new "
2024 "configuration request failed: %d\n",
2028 } else if (priv->mode == IW_MODE_ADHOC) {
2029 if (should_stop_adhoc(priv, assoc_req)) {
2030 ret = lbs_adhoc_stop(priv);
2032 lbs_deb_assoc("Teardown of AdHoc network due to "
2033 "new configuration request failed: %d\n",
2040 /* Send the various configuration bits to the firmware */
2041 if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
2042 ret = assoc_helper_mode(priv, assoc_req);
2047 if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
2048 ret = assoc_helper_channel(priv, assoc_req);
2053 if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
2054 ret = assoc_helper_secinfo(priv, assoc_req);
2059 if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
2060 ret = assoc_helper_wpa_ie(priv, assoc_req);
2066 * v10 FW wants WPA keys to be set/cleared before WEP key operations,
2067 * otherwise it will fail to correctly associate to WEP networks.
2068 * Other firmware versions don't appear to care.
2070 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags) ||
2071 test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
2072 ret = assoc_helper_wpa_keys(priv, assoc_req);
2077 if (test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags) ||
2078 test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
2079 ret = assoc_helper_wep_keys(priv, assoc_req);
2085 /* SSID/BSSID should be the _last_ config option set, because they
2086 * trigger the association attempt.
2088 if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags) ||
2089 test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
2092 ret = assoc_helper_associate(priv, assoc_req);
2094 lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
2099 if (priv->connect_status != LBS_CONNECTED) {
2100 lbs_deb_assoc("ASSOC: association unsuccessful, "
2106 lbs_deb_assoc("associated to %pM\n",
2107 priv->curbssparams.bssid);
2108 lbs_prepare_and_send_command(priv,
2110 0, CMD_OPTION_WAITFORRSP, 0, NULL);
2118 lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
2122 mutex_lock(&priv->lock);
2123 priv->in_progress_assoc_req = NULL;
2124 mutex_unlock(&priv->lock);
2128 lbs_deb_leave(LBS_DEB_ASSOC);
2133 * Caller MUST hold any necessary locks
2135 struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
2137 struct assoc_request * assoc_req;
2139 lbs_deb_enter(LBS_DEB_ASSOC);
2140 if (!priv->pending_assoc_req) {
2141 priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
2143 if (!priv->pending_assoc_req) {
2144 lbs_pr_info("Not enough memory to allocate association"
2150 /* Copy current configuration attributes to the association request,
2151 * but don't overwrite any that are already set.
2153 assoc_req = priv->pending_assoc_req;
2154 if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
2155 memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
2156 IEEE80211_MAX_SSID_LEN);
2157 assoc_req->ssid_len = priv->curbssparams.ssid_len;
2160 if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
2161 assoc_req->channel = priv->channel;
2163 if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
2164 assoc_req->band = priv->curbssparams.band;
2166 if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
2167 assoc_req->mode = priv->mode;
2169 if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
2170 memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
2174 if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
2176 for (i = 0; i < 4; i++) {
2177 memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
2178 sizeof(struct enc_key));
2182 if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
2183 assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
2185 if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
2186 memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
2187 sizeof(struct enc_key));
2190 if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
2191 memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
2192 sizeof(struct enc_key));
2195 if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
2196 memcpy(&assoc_req->secinfo, &priv->secinfo,
2197 sizeof(struct lbs_802_11_security));
2200 if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
2201 memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
2203 assoc_req->wpa_ie_len = priv->wpa_ie_len;
2206 lbs_deb_leave(LBS_DEB_ASSOC);
2212 * @brief Deauthenticate from a specific BSS
2214 * @param priv A pointer to struct lbs_private structure
2215 * @param bssid The specific BSS to deauthenticate from
2216 * @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating
2218 * @return 0 on success, error on failure
2220 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN],
2223 struct cmd_ds_802_11_deauthenticate cmd;
2226 lbs_deb_enter(LBS_DEB_JOIN);
2228 memset(&cmd, 0, sizeof(cmd));
2229 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2230 memcpy(cmd.macaddr, &bssid[0], ETH_ALEN);
2231 cmd.reasoncode = cpu_to_le16(reason);
2233 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
2235 /* Clean up everything even if there was an error; can't assume that
2236 * we're still authenticated to the AP after trying to deauth.
2238 lbs_mac_event_disconnected(priv);
2240 lbs_deb_leave(LBS_DEB_JOIN);