1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
4 * Mostly extracted from the rtl8180-sa2400 driver for the
5 * in-kernel generic ieee802.11 stack.
7 * Few lines might be stolen from other part of the rtllib
8 * stack. Copyright who own it's copyright
10 * WPA code stolen from the ipw2200 driver.
11 * Copyright who own it's copyright.
13 * released under the GPL
19 #include <linux/random.h>
20 #include <linux/delay.h>
21 #include <linux/uaccess.h>
22 #include <linux/etherdevice.h>
23 #include <linux/ieee80211.h>
26 static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
29 static short rtllib_is_54g(struct rtllib_network *net)
31 return (net->rates_ex_len > 0) || (net->rates_len > 4);
34 /* returns the total length needed for placing the RATE MFIE
35 * tag and the EXTENDED RATE MFIE tag if needed.
36 * It encludes two bytes per tag for the tag itself and its len
38 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
40 unsigned int rate_len = 0;
42 if (ieee->modulation & RTLLIB_CCK_MODULATION)
43 rate_len = RTLLIB_CCK_RATE_LEN + 2;
45 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
47 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
52 /* place the MFIE rate, tag to the memory (double) pointed.
53 * Then it updates the pointer so that
54 * it points after the new MFIE tag added.
56 static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
60 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
61 *tag++ = MFIE_TYPE_RATES;
63 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
64 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
65 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
66 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
69 /* We may add an option for custom rates that specific HW
75 static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
79 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
80 *tag++ = MFIE_TYPE_RATES_EX;
82 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
83 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
84 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
85 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
86 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
87 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
88 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
89 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
91 /* We may add an option for custom rates that specific HW might
97 static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
101 *tag++ = MFIE_TYPE_GENERIC;
113 static void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
117 *tag++ = MFIE_TYPE_GENERIC;
128 netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
131 static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
135 nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
137 /* if the queue is full but we have newer frames then
138 * just overwrites the oldest.
140 * if (nh == ieee->mgmt_queue_tail)
143 ieee->mgmt_queue_head = nh;
144 ieee->mgmt_queue_ring[nh] = skb;
148 static void init_mgmt_queue(struct rtllib_device *ieee)
150 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
155 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
162 for (i = 0; i < ieee->current_network.rates_len; i++) {
163 BasicRate = ieee->current_network.rates[i]&0x7F;
164 if (!rtllib_is_cck_rate(BasicRate)) {
165 if (QueryRate == 0) {
166 QueryRate = BasicRate;
168 if (BasicRate < QueryRate)
169 QueryRate = BasicRate;
174 if (QueryRate == 0) {
176 netdev_info(ieee->dev, "No BasicRate found!!\n");
181 static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
183 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
186 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
189 rate = ieee->basic_rate & 0x7f;
192 if (ieee->mode == IEEE_A ||
193 ieee->mode == IEEE_N_5G ||
194 (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
203 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
206 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
207 struct rtllib_hdr_3addr *header =
208 (struct rtllib_hdr_3addr *) skb->data;
210 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
212 spin_lock_irqsave(&ieee->lock, flags);
214 /* called with 2nd param 0, no mgmt lock required */
215 rtllib_sta_wakeup(ieee, 0);
217 if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
218 tcb_desc->queue_index = BEACON_QUEUE;
220 tcb_desc->queue_index = MGNT_QUEUE;
222 if (ieee->disable_mgnt_queue)
223 tcb_desc->queue_index = HIGH_QUEUE;
225 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
226 tcb_desc->RATRIndex = 7;
227 tcb_desc->bTxDisableRateFallBack = 1;
228 tcb_desc->bTxUseDriverAssingedRate = 1;
230 if (ieee->queue_stop) {
231 enqueue_mgmt(ieee, skb);
233 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
235 if (ieee->seq_ctrl[0] == 0xFFF)
236 ieee->seq_ctrl[0] = 0;
240 /* avoid watchdog triggers */
241 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
245 spin_unlock_irqrestore(&ieee->lock, flags);
247 spin_unlock_irqrestore(&ieee->lock, flags);
248 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
250 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
252 if (ieee->seq_ctrl[0] == 0xFFF)
253 ieee->seq_ctrl[0] = 0;
257 /* check whether the managed packet queued greater than 5 */
258 if (!ieee->check_nic_enough_desc(ieee->dev,
259 tcb_desc->queue_index) ||
260 skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) ||
262 /* insert the skb packet to the management queue
264 * as for the completion function, it does not need
265 * to check it any more.
267 netdev_info(ieee->dev,
268 "%s():insert to waitqueue, queue_index:%d!\n",
269 __func__, tcb_desc->queue_index);
270 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
273 ieee->softmac_hard_start_xmit(skb, ieee->dev);
275 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
280 softmac_ps_mgmt_xmit(struct sk_buff *skb,
281 struct rtllib_device *ieee)
283 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
284 struct rtllib_hdr_3addr *header =
285 (struct rtllib_hdr_3addr *) skb->data;
287 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
289 fc = le16_to_cpu(header->frame_ctl);
290 type = WLAN_FC_GET_TYPE(fc);
291 stype = WLAN_FC_GET_STYPE(fc);
294 if (stype != RTLLIB_STYPE_PSPOLL)
295 tcb_desc->queue_index = MGNT_QUEUE;
297 tcb_desc->queue_index = HIGH_QUEUE;
299 if (ieee->disable_mgnt_queue)
300 tcb_desc->queue_index = HIGH_QUEUE;
303 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
304 tcb_desc->RATRIndex = 7;
305 tcb_desc->bTxDisableRateFallBack = 1;
306 tcb_desc->bTxUseDriverAssingedRate = 1;
308 if (type != RTLLIB_FTYPE_CTL) {
309 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
311 if (ieee->seq_ctrl[0] == 0xFFF)
312 ieee->seq_ctrl[0] = 0;
317 /* avoid watchdog triggers */
318 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
322 if (type != RTLLIB_FTYPE_CTL) {
323 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
325 if (ieee->seq_ctrl[0] == 0xFFF)
326 ieee->seq_ctrl[0] = 0;
330 ieee->softmac_hard_start_xmit(skb, ieee->dev);
335 static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
337 unsigned int len, rate_len;
340 struct rtllib_probe_request *req;
342 len = ieee->current_network.ssid_len;
344 rate_len = rtllib_MFIE_rate_len(ieee);
346 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
347 2 + len + rate_len + ieee->tx_headroom);
352 skb_reserve(skb, ieee->tx_headroom);
354 req = (struct rtllib_probe_request *) skb_put(skb,
355 sizeof(struct rtllib_probe_request));
356 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
357 req->header.duration_id = 0;
359 eth_broadcast_addr(req->header.addr1);
360 ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
361 eth_broadcast_addr(req->header.addr3);
363 tag = (u8 *) skb_put(skb, len + 2 + rate_len);
365 *tag++ = MFIE_TYPE_SSID;
367 memcpy(tag, ieee->current_network.ssid, len);
370 rtllib_MFIE_Brate(ieee, &tag);
371 rtllib_MFIE_Grate(ieee, &tag);
376 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
378 static void rtllib_send_beacon(struct rtllib_device *ieee)
384 skb = rtllib_get_beacon_(ieee);
387 softmac_mgmt_xmit(skb, ieee);
388 ieee->softmac_stats.tx_beacons++;
391 if (ieee->beacon_txing && ieee->ieee_up)
392 mod_timer(&ieee->beacon_timer, jiffies +
393 (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
397 static void rtllib_send_beacon_cb(unsigned long _ieee)
399 struct rtllib_device *ieee =
400 (struct rtllib_device *) _ieee;
403 spin_lock_irqsave(&ieee->beacon_lock, flags);
404 rtllib_send_beacon(ieee);
405 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
408 /* Enables network monitor mode, all rx packets will be received. */
409 void rtllib_EnableNetMonitorMode(struct net_device *dev,
412 struct rtllib_device *ieee = netdev_priv_rsl(dev);
414 netdev_info(dev, "========>Enter Monitor Mode\n");
416 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
420 /* Disables network monitor mode. Only packets destinated to
421 * us will be received.
423 void rtllib_DisableNetMonitorMode(struct net_device *dev,
426 struct rtllib_device *ieee = netdev_priv_rsl(dev);
428 netdev_info(dev, "========>Exit Monitor Mode\n");
430 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
434 /* Enables the specialized promiscuous mode required by Intel.
435 * In this mode, Intel intends to hear traffics from/to other STAs in the
436 * same BSS. Therefore we don't have to disable checking BSSID and we only need
437 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
438 * packets from other STA.
440 void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
443 bool bFilterOutNonAssociatedBSSID = false;
445 struct rtllib_device *ieee = netdev_priv_rsl(dev);
447 netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
449 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
450 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
451 (u8 *)&bFilterOutNonAssociatedBSSID);
453 ieee->bNetPromiscuousMode = true;
455 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
458 /* Disables the specialized promiscuous mode required by Intel.
459 * See MgntEnableIntelPromiscuousMode for detail.
461 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
464 bool bFilterOutNonAssociatedBSSID = true;
466 struct rtllib_device *ieee = netdev_priv_rsl(dev);
468 netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
470 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
471 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
472 (u8 *)&bFilterOutNonAssociatedBSSID);
474 ieee->bNetPromiscuousMode = false;
476 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
478 static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
482 skb = rtllib_probe_req(ieee);
484 softmac_mgmt_xmit(skb, ieee);
485 ieee->softmac_stats.tx_probe_rq++;
490 static void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
492 if (ieee->active_scan && (ieee->softmac_features &
493 IEEE_SOFTMAC_PROBERQ)) {
494 rtllib_send_probe(ieee, 0);
495 rtllib_send_probe(ieee, 0);
499 static void rtllib_update_active_chan_map(struct rtllib_device *ieee)
501 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
502 MAX_CHANNEL_NUMBER+1);
505 /* this performs syncro scan blocking the caller until all channels
506 * in the allowed channel map has been checked.
508 static void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
510 union iwreq_data wrqu;
513 rtllib_update_active_chan_map(ieee);
515 ieee->be_scan_inprogress = true;
517 mutex_lock(&ieee->scan_mutex);
522 if (ch > MAX_CHANNEL_NUMBER)
523 goto out; /* scan completed */
524 } while (!ieee->active_channel_map[ch]);
526 /* this function can be called in two situations
527 * 1- We have switched to ad-hoc mode and we are
528 * performing a complete syncro scan before conclude
529 * there are no interesting cell and to create a
530 * new one. In this case the link state is
531 * RTLLIB_NOLINK until we found an interesting cell.
532 * If so the ieee8021_new_net, called by the RX path
533 * will set the state to RTLLIB_LINKED, so we stop
535 * 2- We are linked and the root uses run iwlist scan.
536 * So we switch to RTLLIB_LINKED_SCANNING to remember
537 * that we are still logically linked (not interested in
538 * new network events, despite for updating the net list,
539 * but we are temporarly 'unlinked' as the driver shall
540 * not filter RX frames and the channel is changing.
541 * So the only situation in which are interested is to check
542 * if the state become LINKED because of the #1 situation
545 if (ieee->state == RTLLIB_LINKED)
547 if (ieee->sync_scan_hurryup) {
548 netdev_info(ieee->dev,
549 "============>sync_scan_hurryup out\n");
553 ieee->set_chan(ieee->dev, ch);
554 if (ieee->active_channel_map[ch] == 1)
555 rtllib_send_probe_requests(ieee, 0);
557 /* this prevent excessive time wait when we
558 * need to wait for a syncro scan to end..
560 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
563 ieee->actscanning = false;
564 ieee->sync_scan_hurryup = 0;
566 if (ieee->state >= RTLLIB_LINKED) {
567 if (IS_DOT11D_ENABLE(ieee))
568 DOT11D_ScanComplete(ieee);
570 mutex_unlock(&ieee->scan_mutex);
572 ieee->be_scan_inprogress = false;
574 memset(&wrqu, 0, sizeof(wrqu));
575 wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
578 static void rtllib_softmac_scan_wq(void *data)
580 struct rtllib_device *ieee = container_of_dwork_rsl(data,
581 struct rtllib_device, softmac_scan_wq);
582 u8 last_channel = ieee->current_network.channel;
584 rtllib_update_active_chan_map(ieee);
588 if (rtllib_act_scanning(ieee, true))
591 mutex_lock(&ieee->scan_mutex);
593 if (ieee->eRFPowerState == eRfOff) {
594 netdev_info(ieee->dev,
595 "======>%s():rf state is eRfOff, return\n",
601 ieee->current_network.channel =
602 (ieee->current_network.channel + 1) %
604 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
605 if (!ieee->active_channel_map[ieee->current_network.channel])
606 ieee->current_network.channel = 6;
607 goto out; /* no good chans */
609 } while (!ieee->active_channel_map[ieee->current_network.channel]);
611 if (ieee->scanning_continue == 0)
614 ieee->set_chan(ieee->dev, ieee->current_network.channel);
616 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
617 rtllib_send_probe_requests(ieee, 0);
619 schedule_delayed_work(&ieee->softmac_scan_wq,
620 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
622 mutex_unlock(&ieee->scan_mutex);
626 if (IS_DOT11D_ENABLE(ieee))
627 DOT11D_ScanComplete(ieee);
628 ieee->current_network.channel = last_channel;
631 ieee->actscanning = false;
632 ieee->scan_watch_dog = 0;
633 ieee->scanning_continue = 0;
634 mutex_unlock(&ieee->scan_mutex);
639 static void rtllib_beacons_start(struct rtllib_device *ieee)
643 spin_lock_irqsave(&ieee->beacon_lock, flags);
645 ieee->beacon_txing = 1;
646 rtllib_send_beacon(ieee);
648 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
651 static void rtllib_beacons_stop(struct rtllib_device *ieee)
655 spin_lock_irqsave(&ieee->beacon_lock, flags);
657 ieee->beacon_txing = 0;
658 del_timer_sync(&ieee->beacon_timer);
660 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
665 void rtllib_stop_send_beacons(struct rtllib_device *ieee)
667 if (ieee->stop_send_beacons)
668 ieee->stop_send_beacons(ieee->dev);
669 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
670 rtllib_beacons_stop(ieee);
672 EXPORT_SYMBOL(rtllib_stop_send_beacons);
675 void rtllib_start_send_beacons(struct rtllib_device *ieee)
677 if (ieee->start_send_beacons)
678 ieee->start_send_beacons(ieee->dev);
679 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
680 rtllib_beacons_start(ieee);
682 EXPORT_SYMBOL(rtllib_start_send_beacons);
685 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
687 mutex_lock(&ieee->scan_mutex);
688 ieee->scan_watch_dog = 0;
689 if (ieee->scanning_continue == 1) {
690 ieee->scanning_continue = 0;
691 ieee->actscanning = false;
693 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
696 mutex_unlock(&ieee->scan_mutex);
699 void rtllib_stop_scan(struct rtllib_device *ieee)
701 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
702 rtllib_softmac_stop_scan(ieee);
704 if (ieee->rtllib_stop_hw_scan)
705 ieee->rtllib_stop_hw_scan(ieee->dev);
708 EXPORT_SYMBOL(rtllib_stop_scan);
710 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
712 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
713 ieee->sync_scan_hurryup = 1;
715 if (ieee->rtllib_stop_hw_scan)
716 ieee->rtllib_stop_hw_scan(ieee->dev);
719 EXPORT_SYMBOL(rtllib_stop_scan_syncro);
721 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
723 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
725 return ieee->be_scan_inprogress;
727 return ieee->actscanning || ieee->be_scan_inprogress;
729 return test_bit(STATUS_SCANNING, &ieee->status);
732 EXPORT_SYMBOL(rtllib_act_scanning);
734 /* called with ieee->lock held */
735 static void rtllib_start_scan(struct rtllib_device *ieee)
737 RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
738 if (ieee->rtllib_ips_leave_wq != NULL)
739 ieee->rtllib_ips_leave_wq(ieee->dev);
741 if (IS_DOT11D_ENABLE(ieee)) {
742 if (IS_COUNTRY_IE_VALID(ieee))
743 RESET_CIE_WATCHDOG(ieee);
745 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
746 if (ieee->scanning_continue == 0) {
747 ieee->actscanning = true;
748 ieee->scanning_continue = 1;
749 schedule_delayed_work(&ieee->softmac_scan_wq, 0);
752 if (ieee->rtllib_start_hw_scan)
753 ieee->rtllib_start_hw_scan(ieee->dev);
757 /* called with wx_mutex held */
758 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
760 if (IS_DOT11D_ENABLE(ieee)) {
761 if (IS_COUNTRY_IE_VALID(ieee))
762 RESET_CIE_WATCHDOG(ieee);
764 ieee->sync_scan_hurryup = 0;
765 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
766 rtllib_softmac_scan_syncro(ieee, is_mesh);
768 if (ieee->rtllib_start_hw_scan)
769 ieee->rtllib_start_hw_scan(ieee->dev);
772 EXPORT_SYMBOL(rtllib_start_scan_syncro);
774 static inline struct sk_buff *
775 rtllib_authentication_req(struct rtllib_network *beacon,
776 struct rtllib_device *ieee,
777 int challengelen, u8 *daddr)
780 struct rtllib_authentication *auth;
783 len = sizeof(struct rtllib_authentication) + challengelen +
784 ieee->tx_headroom + 4;
785 skb = dev_alloc_skb(len);
790 skb_reserve(skb, ieee->tx_headroom);
792 auth = (struct rtllib_authentication *)
793 skb_put(skb, sizeof(struct rtllib_authentication));
795 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
797 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
799 auth->header.duration_id = cpu_to_le16(0x013a);
800 ether_addr_copy(auth->header.addr1, beacon->bssid);
801 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
802 ether_addr_copy(auth->header.addr3, beacon->bssid);
803 if (ieee->auth_mode == 0)
804 auth->algorithm = WLAN_AUTH_OPEN;
805 else if (ieee->auth_mode == 1)
806 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
807 else if (ieee->auth_mode == 2)
808 auth->algorithm = WLAN_AUTH_OPEN;
809 auth->transaction = cpu_to_le16(ieee->associate_seq);
810 ieee->associate_seq++;
812 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
817 static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
822 struct rtllib_probe_response *beacon_buf;
823 struct sk_buff *skb = NULL;
825 int atim_len, erp_len;
826 struct lib80211_crypt_data *crypt;
828 char *ssid = ieee->current_network.ssid;
829 int ssid_len = ieee->current_network.ssid_len;
830 int rate_len = ieee->current_network.rates_len+2;
831 int rate_ex_len = ieee->current_network.rates_ex_len;
832 int wpa_ie_len = ieee->wpa_ie_len;
833 u8 erpinfo_content = 0;
835 u8 *tmp_ht_cap_buf = NULL;
836 u8 tmp_ht_cap_len = 0;
837 u8 *tmp_ht_info_buf = NULL;
838 u8 tmp_ht_info_len = 0;
839 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
840 u8 *tmp_generic_ie_buf = NULL;
841 u8 tmp_generic_ie_len = 0;
846 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
851 if ((ieee->current_network.mode == IEEE_G) ||
852 (ieee->current_network.mode == IEEE_N_24G &&
853 ieee->pHTInfo->bCurSuppCCK)) {
856 if (ieee->current_network.buseprotection)
857 erpinfo_content |= ERP_UseProtection;
861 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
862 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
863 ((strcmp(crypt->ops->name, "R-WEP") == 0 || wpa_ie_len));
864 if (ieee->pHTInfo->bCurrentHTSupport) {
865 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
866 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
867 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
868 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
869 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
870 &tmp_ht_cap_len, encrypt, false);
871 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
874 if (pHTInfo->bRegRT2RTAggregation) {
875 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
877 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
878 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
879 &tmp_generic_ie_len);
883 beacon_size = sizeof(struct rtllib_probe_response)+2+
884 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
885 + wpa_ie_len + ieee->tx_headroom;
886 skb = dev_alloc_skb(beacon_size);
890 skb_reserve(skb, ieee->tx_headroom);
892 beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
893 (beacon_size - ieee->tx_headroom));
894 ether_addr_copy(beacon_buf->header.addr1, dest);
895 ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
896 ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
898 beacon_buf->header.duration_id = 0;
899 beacon_buf->beacon_interval =
900 cpu_to_le16(ieee->current_network.beacon_interval);
901 beacon_buf->capability =
902 cpu_to_le16(ieee->current_network.capability &
903 WLAN_CAPABILITY_IBSS);
904 beacon_buf->capability |=
905 cpu_to_le16(ieee->current_network.capability &
906 WLAN_CAPABILITY_SHORT_PREAMBLE);
908 if (ieee->short_slot && (ieee->current_network.capability &
909 WLAN_CAPABILITY_SHORT_SLOT_TIME))
910 beacon_buf->capability |=
911 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
913 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
915 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
918 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
919 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
920 beacon_buf->info_element[0].len = ssid_len;
922 tag = (u8 *) beacon_buf->info_element[0].data;
924 memcpy(tag, ssid, ssid_len);
928 *(tag++) = MFIE_TYPE_RATES;
929 *(tag++) = rate_len-2;
930 memcpy(tag, ieee->current_network.rates, rate_len-2);
933 *(tag++) = MFIE_TYPE_DS_SET;
935 *(tag++) = ieee->current_network.channel;
939 *(tag++) = MFIE_TYPE_IBSS_SET;
941 val16 = ieee->current_network.atim_window;
942 memcpy((u8 *)tag, (u8 *)&val16, 2);
947 *(tag++) = MFIE_TYPE_ERP;
949 *(tag++) = erpinfo_content;
952 *(tag++) = MFIE_TYPE_RATES_EX;
953 *(tag++) = rate_ex_len-2;
954 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
955 tag += rate_ex_len-2;
959 if (ieee->iw_mode == IW_MODE_ADHOC)
960 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
961 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
962 tag += ieee->wpa_ie_len;
967 static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
972 struct lib80211_crypt_data *crypt;
973 struct rtllib_assoc_response_frame *assoc;
976 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
977 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
980 skb = dev_alloc_skb(len);
985 skb_reserve(skb, ieee->tx_headroom);
987 assoc = (struct rtllib_assoc_response_frame *)
988 skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
990 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
991 ether_addr_copy(assoc->header.addr1, dest);
992 ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
993 ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
994 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
995 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
998 if (ieee->short_slot)
1000 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1002 if (ieee->host_encrypt)
1003 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1007 encrypt = (crypt && crypt->ops);
1010 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1013 assoc->aid = cpu_to_le16(ieee->assoc_id);
1014 if (ieee->assoc_id == 0x2007)
1019 tag = (u8 *) skb_put(skb, rate_len);
1020 rtllib_MFIE_Brate(ieee, &tag);
1021 rtllib_MFIE_Grate(ieee, &tag);
1026 static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
1029 struct sk_buff *skb = NULL;
1030 struct rtllib_authentication *auth;
1031 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
1033 skb = dev_alloc_skb(len);
1037 skb->len = sizeof(struct rtllib_authentication);
1039 skb_reserve(skb, ieee->tx_headroom);
1041 auth = (struct rtllib_authentication *)
1042 skb_put(skb, sizeof(struct rtllib_authentication));
1044 auth->status = cpu_to_le16(status);
1045 auth->transaction = cpu_to_le16(2);
1046 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1048 ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
1049 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
1050 ether_addr_copy(auth->header.addr1, dest);
1051 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1057 static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
1059 struct sk_buff *skb;
1060 struct rtllib_hdr_3addr *hdr;
1062 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
1066 skb_reserve(skb, ieee->tx_headroom);
1068 hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
1069 sizeof(struct rtllib_hdr_3addr));
1071 ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
1072 ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
1073 ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
1075 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1076 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
1077 (pwr ? RTLLIB_FCTL_PM : 0));
1084 static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
1086 struct sk_buff *skb;
1087 struct rtllib_pspoll_hdr *hdr;
1089 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
1093 skb_reserve(skb, ieee->tx_headroom);
1095 hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
1096 sizeof(struct rtllib_pspoll_hdr));
1098 ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
1099 ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
1101 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
1102 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1109 static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
1111 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1114 softmac_mgmt_xmit(buf, ieee);
1118 static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
1120 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1123 softmac_mgmt_xmit(buf, ieee);
1127 static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
1129 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
1132 softmac_mgmt_xmit(buf, ieee);
1136 static inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1141 if ((ieee->PMKIDList[i].bUsed) &&
1142 (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
1145 } while (i < NUM_PMKID_CACHE);
1147 if (i == NUM_PMKID_CACHE)
1152 static inline struct sk_buff *
1153 rtllib_association_req(struct rtllib_network *beacon,
1154 struct rtllib_device *ieee)
1156 struct sk_buff *skb;
1157 struct rtllib_assoc_request_frame *hdr;
1160 u8 *ht_cap_buf = NULL;
1162 u8 *realtek_ie_buf = NULL;
1163 u8 realtek_ie_len = 0;
1164 int wpa_ie_len = ieee->wpa_ie_len;
1165 int wps_ie_len = ieee->wps_ie_len;
1166 unsigned int ckip_ie_len = 0;
1167 unsigned int ccxrm_ie_len = 0;
1168 unsigned int cxvernum_ie_len = 0;
1169 struct lib80211_crypt_data *crypt;
1173 unsigned int rate_len = (beacon->rates_len ?
1174 (beacon->rates_len + 2) : 0) +
1175 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1178 unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1179 unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
1183 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1185 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
1186 ((strcmp(crypt->ops->name, "R-WEP") == 0 ||
1191 if ((ieee->rtllib_ap_sec_type &&
1192 (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
1193 ieee->bForcedBgMode) {
1194 ieee->pHTInfo->bEnableHT = 0;
1195 ieee->mode = WIRELESS_MODE_G;
1198 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1199 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
1200 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
1201 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1203 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1204 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
1206 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1207 HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1212 if (beacon->bCkipSupported)
1214 if (beacon->bCcxRmEnable)
1216 if (beacon->BssCcxVerNumber >= 2)
1217 cxvernum_ie_len = 5+2;
1219 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
1220 if (PMKCacheIdx >= 0) {
1222 netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
1225 len = sizeof(struct rtllib_assoc_request_frame) + 2
1237 + ieee->tx_headroom;
1239 skb = dev_alloc_skb(len);
1244 skb_reserve(skb, ieee->tx_headroom);
1246 hdr = (struct rtllib_assoc_request_frame *)
1247 skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
1250 hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
1251 hdr->header.duration_id = cpu_to_le16(37);
1252 ether_addr_copy(hdr->header.addr1, beacon->bssid);
1253 ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
1254 ether_addr_copy(hdr->header.addr3, beacon->bssid);
1256 ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
1258 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1259 if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
1260 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1262 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1263 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1265 if (ieee->short_slot &&
1266 (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
1267 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1270 hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
1272 hdr->info_element[0].id = MFIE_TYPE_SSID;
1274 hdr->info_element[0].len = beacon->ssid_len;
1275 tag = skb_put(skb, beacon->ssid_len);
1276 memcpy(tag, beacon->ssid, beacon->ssid_len);
1278 tag = skb_put(skb, rate_len);
1280 if (beacon->rates_len) {
1281 *tag++ = MFIE_TYPE_RATES;
1282 *tag++ = beacon->rates_len;
1283 for (i = 0; i < beacon->rates_len; i++)
1284 *tag++ = beacon->rates[i];
1287 if (beacon->rates_ex_len) {
1288 *tag++ = MFIE_TYPE_RATES_EX;
1289 *tag++ = beacon->rates_ex_len;
1290 for (i = 0; i < beacon->rates_ex_len; i++)
1291 *tag++ = beacon->rates_ex[i];
1294 if (beacon->bCkipSupported) {
1295 static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
1296 u8 CcxAironetBuf[30];
1297 struct octet_string osCcxAironetIE;
1299 memset(CcxAironetBuf, 0, 30);
1300 osCcxAironetIE.Octet = CcxAironetBuf;
1301 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
1302 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1303 sizeof(AironetIeOui));
1305 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1306 (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
1307 tag = skb_put(skb, ckip_ie_len);
1308 *tag++ = MFIE_TYPE_AIRONET;
1309 *tag++ = osCcxAironetIE.Length;
1310 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
1311 tag += osCcxAironetIE.Length;
1314 if (beacon->bCcxRmEnable) {
1315 static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1317 struct octet_string osCcxRmCap;
1319 osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
1320 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
1321 tag = skb_put(skb, ccxrm_ie_len);
1322 *tag++ = MFIE_TYPE_GENERIC;
1323 *tag++ = osCcxRmCap.Length;
1324 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
1325 tag += osCcxRmCap.Length;
1328 if (beacon->BssCcxVerNumber >= 2) {
1329 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1330 struct octet_string osCcxVerNum;
1332 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1333 osCcxVerNum.Octet = CcxVerNumBuf;
1334 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
1335 tag = skb_put(skb, cxvernum_ie_len);
1336 *tag++ = MFIE_TYPE_GENERIC;
1337 *tag++ = osCcxVerNum.Length;
1338 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
1339 tag += osCcxVerNum.Length;
1341 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1342 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
1343 tag = skb_put(skb, ht_cap_len);
1344 *tag++ = MFIE_TYPE_HT_CAP;
1345 *tag++ = ht_cap_len - 2;
1346 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1347 tag += ht_cap_len - 2;
1352 tag = skb_put(skb, ieee->wpa_ie_len);
1353 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1355 if (PMKCacheIdx >= 0) {
1356 tag = skb_put(skb, 18);
1359 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1364 tag = skb_put(skb, wmm_info_len);
1365 rtllib_WMM_Info(ieee, &tag);
1368 if (wps_ie_len && ieee->wps_ie) {
1369 tag = skb_put(skb, wps_ie_len);
1370 memcpy(tag, ieee->wps_ie, wps_ie_len);
1373 tag = skb_put(skb, turbo_info_len);
1375 rtllib_TURBO_Info(ieee, &tag);
1377 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1378 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
1379 tag = skb_put(skb, ht_cap_len);
1380 *tag++ = MFIE_TYPE_GENERIC;
1381 *tag++ = ht_cap_len - 2;
1382 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1383 tag += ht_cap_len - 2;
1386 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1387 tag = skb_put(skb, realtek_ie_len);
1388 *tag++ = MFIE_TYPE_GENERIC;
1389 *tag++ = realtek_ie_len - 2;
1390 memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
1394 kfree(ieee->assocreq_ies);
1395 ieee->assocreq_ies = NULL;
1396 ies = &(hdr->info_element[0].id);
1397 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1398 ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1399 if (ieee->assocreq_ies)
1400 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
1402 netdev_info(ieee->dev,
1403 "%s()Warning: can't alloc memory for assocreq_ies\n",
1405 ieee->assocreq_ies_len = 0;
1410 static void rtllib_associate_abort(struct rtllib_device *ieee)
1412 unsigned long flags;
1414 spin_lock_irqsave(&ieee->lock, flags);
1416 ieee->associate_seq++;
1418 /* don't scan, and avoid to have the RX path possibily
1419 * try again to associate. Even do not react to AUTH or
1420 * ASSOC response. Just wait for the retry wq to be scheduled.
1421 * Here we will check if there are good nets to associate
1422 * with, so we retry or just get back to NO_LINK and scanning
1424 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
1425 netdev_dbg(ieee->dev, "Authentication failed\n");
1426 ieee->softmac_stats.no_auth_rs++;
1428 netdev_dbg(ieee->dev, "Association failed\n");
1429 ieee->softmac_stats.no_ass_rs++;
1432 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1434 schedule_delayed_work(&ieee->associate_retry_wq,
1435 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
1437 spin_unlock_irqrestore(&ieee->lock, flags);
1440 static void rtllib_associate_abort_cb(unsigned long dev)
1442 rtllib_associate_abort((struct rtllib_device *) dev);
1445 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
1447 struct rtllib_network *beacon = &ieee->current_network;
1448 struct sk_buff *skb;
1450 netdev_dbg(ieee->dev, "Stopping scan\n");
1452 ieee->softmac_stats.tx_auth_rq++;
1454 skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
1457 rtllib_associate_abort(ieee);
1459 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
1460 netdev_dbg(ieee->dev, "Sending authentication request\n");
1461 softmac_mgmt_xmit(skb, ieee);
1462 if (!timer_pending(&ieee->associate_timer)) {
1463 ieee->associate_timer.expires = jiffies + (HZ / 2);
1464 add_timer(&ieee->associate_timer);
1469 static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge,
1473 struct sk_buff *skb;
1474 struct rtllib_network *beacon = &ieee->current_network;
1476 ieee->associate_seq++;
1477 ieee->softmac_stats.tx_auth_rq++;
1479 skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
1482 rtllib_associate_abort(ieee);
1484 c = skb_put(skb, chlen+2);
1485 *(c++) = MFIE_TYPE_CHALLENGE;
1487 memcpy(c, challenge, chlen);
1489 netdev_dbg(ieee->dev,
1490 "Sending authentication challenge response\n");
1492 rtllib_encrypt_fragment(ieee, skb,
1493 sizeof(struct rtllib_hdr_3addr));
1495 softmac_mgmt_xmit(skb, ieee);
1496 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1501 static void rtllib_associate_step2(struct rtllib_device *ieee)
1503 struct sk_buff *skb;
1504 struct rtllib_network *beacon = &ieee->current_network;
1506 del_timer_sync(&ieee->associate_timer);
1508 netdev_dbg(ieee->dev, "Sending association request\n");
1510 ieee->softmac_stats.tx_ass_rq++;
1511 skb = rtllib_association_req(beacon, ieee);
1513 rtllib_associate_abort(ieee);
1515 softmac_mgmt_xmit(skb, ieee);
1516 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1520 static void rtllib_associate_complete_wq(void *data)
1522 struct rtllib_device *ieee = (struct rtllib_device *)
1523 container_of_work_rsl(data,
1524 struct rtllib_device,
1525 associate_complete_wq);
1526 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
1528 netdev_info(ieee->dev, "Associated successfully\n");
1529 if (!ieee->is_silent_reset) {
1530 netdev_info(ieee->dev, "normal associate\n");
1531 notify_wx_assoc_event(ieee);
1534 netif_carrier_on(ieee->dev);
1535 ieee->is_roaming = false;
1536 if (rtllib_is_54g(&ieee->current_network) &&
1537 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1539 netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
1542 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1543 netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
1545 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1546 netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
1549 netdev_info(ieee->dev,
1550 "Successfully associated, ht not enabled(%d, %d)\n",
1551 ieee->pHTInfo->bCurrentHTSupport,
1552 ieee->pHTInfo->bEnableHT);
1553 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1555 ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1556 ieee->current_network.beacon_interval /
1558 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1559 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
1560 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
1561 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
1563 pPSC->LpsIdleCount = 0;
1564 ieee->link_change(ieee->dev);
1566 if (ieee->is_silent_reset) {
1567 netdev_info(ieee->dev, "silent reset associate\n");
1568 ieee->is_silent_reset = false;
1571 if (ieee->data_hard_resume)
1572 ieee->data_hard_resume(ieee->dev);
1576 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1580 static void rtllib_associate_complete(struct rtllib_device *ieee)
1582 del_timer_sync(&ieee->associate_timer);
1584 ieee->state = RTLLIB_LINKED;
1585 rtllib_sta_send_associnfo(ieee);
1587 schedule_work(&ieee->associate_complete_wq);
1590 static void rtllib_associate_procedure_wq(void *data)
1592 struct rtllib_device *ieee = container_of_dwork_rsl(data,
1593 struct rtllib_device,
1594 associate_procedure_wq);
1595 rtllib_stop_scan_syncro(ieee);
1596 if (ieee->rtllib_ips_leave != NULL)
1597 ieee->rtllib_ips_leave(ieee->dev);
1598 mutex_lock(&ieee->wx_mutex);
1600 if (ieee->data_hard_stop)
1601 ieee->data_hard_stop(ieee->dev);
1603 rtllib_stop_scan(ieee);
1604 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1605 ieee->current_network.channel);
1606 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1607 if (ieee->eRFPowerState == eRfOff) {
1609 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1611 if (ieee->rtllib_ips_leave_wq != NULL)
1612 ieee->rtllib_ips_leave_wq(ieee->dev);
1613 mutex_unlock(&ieee->wx_mutex);
1616 ieee->associate_seq = 1;
1618 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1620 mutex_unlock(&ieee->wx_mutex);
1623 inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1624 struct rtllib_network *net)
1626 u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
1627 int tmp_ssid_len = 0;
1629 short apset, ssidset, ssidbroad, apmatch, ssidmatch;
1631 /* we are interested in new new only if we are not associated
1632 * and we are not associating / authenticating
1634 if (ieee->state != RTLLIB_NOLINK)
1637 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1638 WLAN_CAPABILITY_ESS))
1641 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1642 WLAN_CAPABILITY_IBSS))
1645 if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1646 (net->channel > ieee->ibss_maxjoin_chal))
1648 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1649 /* if the user specified the AP MAC, we need also the essid
1650 * This could be obtained by beacons or, if the network does not
1651 * broadcast it, it can be put manually.
1653 apset = ieee->wap_set;
1654 ssidset = ieee->ssid_set;
1655 ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
1656 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1659 ssidmatch = (ieee->current_network.ssid_len ==
1660 net->hidden_ssid_len) &&
1661 (!strncmp(ieee->current_network.ssid,
1662 net->hidden_ssid, net->hidden_ssid_len));
1663 if (net->hidden_ssid_len > 0) {
1664 strncpy(net->ssid, net->hidden_ssid,
1665 net->hidden_ssid_len);
1666 net->ssid_len = net->hidden_ssid_len;
1671 (ieee->current_network.ssid_len == net->ssid_len) &&
1672 (!strncmp(ieee->current_network.ssid, net->ssid,
1675 /* if the user set the AP check if match.
1676 * if the network does not broadcast essid we check the
1677 * user supplied ANY essid
1678 * if the network does broadcast and the user does not set
1680 * if the network does broadcast and the user did set essid
1681 * check if essid match
1682 * if the ap is not set, check that the user set the bssid
1683 * and the network does broadcast and that those two bssid match
1685 if ((apset && apmatch &&
1686 ((ssidset && ssidbroad && ssidmatch) ||
1687 (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1688 (!apset && ssidset && ssidbroad && ssidmatch) ||
1689 (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1690 /* if the essid is hidden replace it with the
1691 * essid provided by the user.
1694 strncpy(tmp_ssid, ieee->current_network.ssid,
1696 tmp_ssid_len = ieee->current_network.ssid_len;
1698 memcpy(&ieee->current_network, net,
1699 sizeof(struct rtllib_network));
1701 strncpy(ieee->current_network.ssid, tmp_ssid,
1703 ieee->current_network.ssid_len = tmp_ssid_len;
1705 netdev_info(ieee->dev,
1706 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1707 ieee->current_network.ssid,
1708 ieee->current_network.channel,
1709 ieee->current_network.qos_data.supported,
1710 ieee->pHTInfo->bEnableHT,
1711 ieee->current_network.bssht.bdSupportHT,
1712 ieee->current_network.mode,
1713 ieee->current_network.flags);
1715 if ((rtllib_act_scanning(ieee, false)) &&
1716 !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1717 rtllib_stop_scan_syncro(ieee);
1719 HTResetIOTSetting(ieee->pHTInfo);
1721 if (ieee->iw_mode == IW_MODE_INFRA) {
1722 /* Join the network for the first time */
1723 ieee->AsocRetryCount = 0;
1724 if ((ieee->current_network.qos_data.supported == 1) &&
1725 ieee->current_network.bssht.bdSupportHT)
1726 HTResetSelfAndSavePeerSetting(ieee,
1727 &(ieee->current_network));
1729 ieee->pHTInfo->bCurrentHTSupport =
1732 ieee->state = RTLLIB_ASSOCIATING;
1733 if (ieee->LedControlHandler != NULL)
1734 ieee->LedControlHandler(ieee->dev,
1735 LED_CTL_START_TO_LINK);
1736 schedule_delayed_work(
1737 &ieee->associate_procedure_wq, 0);
1739 if (rtllib_is_54g(&ieee->current_network) &&
1741 RTLLIB_OFDM_MODULATION)) {
1743 ieee->SetWirelessMode(ieee->dev,
1745 netdev_info(ieee->dev,
1749 ieee->SetWirelessMode(ieee->dev,
1751 netdev_info(ieee->dev,
1754 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1755 ieee->state = RTLLIB_LINKED;
1761 static void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1763 unsigned long flags;
1764 struct rtllib_network *target;
1766 spin_lock_irqsave(&ieee->lock, flags);
1768 list_for_each_entry(target, &ieee->network_list, list) {
1770 /* if the state become different that NOLINK means
1771 * we had found what we are searching for
1774 if (ieee->state != RTLLIB_NOLINK)
1777 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1778 ieee->scan_age, jiffies))
1779 rtllib_softmac_new_net(ieee, target);
1781 spin_unlock_irqrestore(&ieee->lock, flags);
1784 static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
1785 u8 **challenge, int *chlen)
1787 struct rtllib_authentication *a;
1790 if (skb->len < (sizeof(struct rtllib_authentication) -
1791 sizeof(struct rtllib_info_element))) {
1792 netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
1796 a = (struct rtllib_authentication *) skb->data;
1797 if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
1798 t = skb->data + sizeof(struct rtllib_authentication);
1800 if (*(t++) == MFIE_TYPE_CHALLENGE) {
1802 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1807 return le16_to_cpu(a->status);
1810 static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
1812 struct rtllib_authentication *a;
1814 if (skb->len < (sizeof(struct rtllib_authentication) -
1815 sizeof(struct rtllib_info_element))) {
1816 netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
1819 a = (struct rtllib_authentication *) skb->data;
1821 ether_addr_copy(dest, a->header.addr2);
1823 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1824 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1826 return WLAN_STATUS_SUCCESS;
1829 static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1836 struct rtllib_hdr_3addr *header =
1837 (struct rtllib_hdr_3addr *) skb->data;
1840 if (skb->len < sizeof(struct rtllib_hdr_3addr))
1841 return -1; /* corrupted */
1844 (!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
1845 (!is_broadcast_ether_addr(header->addr3));
1849 ether_addr_copy(src, header->addr2);
1851 skbend = (u8 *)skb->data + skb->len;
1853 tag = skb->data + sizeof(struct rtllib_hdr_3addr);
1855 while (tag + 1 < skbend) {
1858 ssidlen = *(tag + 1);
1861 tag++; /* point to the len field */
1862 tag = tag + *(tag); /* point to the last data byte of the tag */
1863 tag++; /* point to the next tag */
1870 return 1; /* ssid not found in tagged param */
1872 return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
1875 static int assoc_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
1877 struct rtllib_assoc_request_frame *a;
1879 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1880 sizeof(struct rtllib_info_element))) {
1881 netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
1885 a = (struct rtllib_assoc_request_frame *) skb->data;
1887 ether_addr_copy(dest, a->header.addr2);
1892 static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1895 struct rtllib_assoc_response_frame *response_head;
1898 if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
1899 netdev_dbg(ieee->dev, "Invalid len in auth resp: %d\n",
1904 response_head = (struct rtllib_assoc_response_frame *) skb->data;
1905 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1907 status_code = le16_to_cpu(response_head->status);
1908 if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1909 status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
1910 ((ieee->mode == IEEE_G) &&
1911 (ieee->current_network.mode == IEEE_N_24G) &&
1912 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1913 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1915 ieee->AsocRetryCount = 0;
1918 return le16_to_cpu(response_head->status);
1921 void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1925 ieee->softmac_stats.rx_probe_rq++;
1926 if (probe_rq_parse(ieee, skb, dest) > 0) {
1927 ieee->softmac_stats.tx_probe_rs++;
1928 rtllib_resp_to_probe(ieee, dest);
1932 static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1933 struct sk_buff *skb)
1938 ieee->softmac_stats.rx_auth_rq++;
1940 status = auth_rq_parse(ieee->dev, skb, dest);
1942 rtllib_resp_to_auth(ieee, status, dest);
1945 static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1946 struct sk_buff *skb)
1951 ieee->softmac_stats.rx_ass_rq++;
1952 if (assoc_rq_parse(ieee->dev, skb, dest) != -1)
1953 rtllib_resp_to_assoc_rq(ieee, dest);
1955 netdev_info(ieee->dev, "New client associated: %pM\n", dest);
1958 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1961 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1964 softmac_ps_mgmt_xmit(buf, ieee);
1966 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
1968 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1970 struct sk_buff *buf = rtllib_pspoll_func(ieee);
1973 softmac_ps_mgmt_xmit(buf, ieee);
1976 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
1978 int timeout = ieee->ps_timeout;
1980 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
1982 if (ieee->LPSDelayCnt) {
1983 ieee->LPSDelayCnt--;
1987 dtim = ieee->current_network.dtim_data;
1988 if (!(dtim & RTLLIB_DTIM_VALID))
1990 timeout = ieee->current_network.beacon_interval;
1991 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
1992 /* there's no need to nofity AP that I find you buffered
1993 * with broadcast packet
1995 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
1998 if (!time_after(jiffies,
1999 dev_trans_start(ieee->dev) + msecs_to_jiffies(timeout)))
2001 if (!time_after(jiffies,
2002 ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
2004 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
2005 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
2009 if (ieee->bAwakePktSent) {
2010 pPSC->LPSAwakeIntvl = 1;
2014 if (pPSC->LPSAwakeIntvl == 0)
2015 pPSC->LPSAwakeIntvl = 1;
2016 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2018 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2019 MaxPeriod = ieee->current_network.dtim_period;
2021 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
2022 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2023 MaxPeriod) ? MaxPeriod :
2024 (pPSC->LPSAwakeIntvl + 1);
2027 u8 LPSAwakeIntvl_tmp = 0;
2028 u8 period = ieee->current_network.dtim_period;
2029 u8 count = ieee->current_network.tim.tim_count;
2032 if (pPSC->LPSAwakeIntvl > period)
2033 LPSAwakeIntvl_tmp = period +
2034 (pPSC->LPSAwakeIntvl -
2036 ((pPSC->LPSAwakeIntvl-period) %
2039 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2042 if (pPSC->LPSAwakeIntvl >
2043 ieee->current_network.tim.tim_count)
2044 LPSAwakeIntvl_tmp = count +
2045 (pPSC->LPSAwakeIntvl - count) -
2046 ((pPSC->LPSAwakeIntvl-count)%period);
2048 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2051 *time = ieee->current_network.last_dtim_sta_time
2052 + msecs_to_jiffies(ieee->current_network.beacon_interval *
2062 static inline void rtllib_sta_ps(struct rtllib_device *ieee)
2066 unsigned long flags, flags2;
2068 spin_lock_irqsave(&ieee->lock, flags);
2070 if ((ieee->ps == RTLLIB_PS_DISABLED ||
2071 ieee->iw_mode != IW_MODE_INFRA ||
2072 ieee->state != RTLLIB_LINKED)) {
2074 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2075 __func__, ieee->ps, ieee->iw_mode, ieee->state);
2076 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2077 rtllib_sta_wakeup(ieee, 1);
2079 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2081 sleep = rtllib_sta_ps_sleep(ieee, &time);
2082 /* 2 wake, 1 sleep, 0 do nothing */
2086 if (ieee->sta_sleep == LPS_IS_SLEEP) {
2087 ieee->enter_sleep_state(ieee->dev, time);
2088 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
2089 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2091 if (ieee->ps_is_queue_empty(ieee->dev)) {
2092 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2093 ieee->ack_tx_to_ieee = 1;
2094 rtllib_sta_ps_send_null_frame(ieee, 1);
2095 ieee->ps_time = time;
2097 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2101 ieee->bAwakePktSent = false;
2103 } else if (sleep == 2) {
2104 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2106 rtllib_sta_wakeup(ieee, 1);
2108 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2112 spin_unlock_irqrestore(&ieee->lock, flags);
2116 static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2118 if (ieee->sta_sleep == LPS_IS_WAKE) {
2120 if (ieee->pHTInfo->IOTAction &
2121 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2122 ieee->ack_tx_to_ieee = 1;
2123 rtllib_sta_ps_send_null_frame(ieee, 0);
2125 ieee->ack_tx_to_ieee = 1;
2126 rtllib_sta_ps_send_pspoll_frame(ieee);
2133 if (ieee->sta_sleep == LPS_IS_SLEEP)
2134 ieee->sta_wake_up(ieee->dev);
2136 if (ieee->pHTInfo->IOTAction &
2137 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2138 ieee->ack_tx_to_ieee = 1;
2139 rtllib_sta_ps_send_null_frame(ieee, 0);
2141 ieee->ack_tx_to_ieee = 1;
2142 ieee->polling = true;
2143 rtllib_sta_ps_send_pspoll_frame(ieee);
2147 ieee->sta_sleep = LPS_IS_WAKE;
2148 ieee->polling = false;
2152 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2154 unsigned long flags, flags2;
2156 spin_lock_irqsave(&ieee->lock, flags);
2158 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
2159 /* Null frame with PS bit set */
2161 ieee->sta_sleep = LPS_IS_SLEEP;
2162 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
2164 /* if the card report not success we can't be sure the AP
2165 * has not RXed so we can't assume the AP believe us awake
2167 } else {/* 21112005 - tx again null without PS bit if lost */
2169 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
2170 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2171 if (ieee->pHTInfo->IOTAction &
2172 HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2173 rtllib_sta_ps_send_null_frame(ieee, 0);
2175 rtllib_sta_ps_send_pspoll_frame(ieee);
2176 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2179 spin_unlock_irqrestore(&ieee->lock, flags);
2181 EXPORT_SYMBOL(rtllib_ps_tx_ack);
2183 static void rtllib_process_action(struct rtllib_device *ieee,
2184 struct sk_buff *skb)
2186 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2187 u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
2191 netdev_warn(ieee->dev,
2192 "Error getting payload of action frame\n");
2202 rtllib_rx_ADDBAReq(ieee, skb);
2205 rtllib_rx_ADDBARsp(ieee, skb);
2208 rtllib_rx_DELBA(ieee, skb);
2218 rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2219 struct rtllib_rx_stats *rx_stats)
2224 struct rtllib_assoc_response_frame *assoc_resp;
2225 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2226 u16 frame_ctl = le16_to_cpu(header->frame_ctl);
2228 netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
2229 WLAN_FC_GET_STYPE(frame_ctl));
2231 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2232 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2233 (ieee->iw_mode == IW_MODE_INFRA)) {
2234 errcode = assoc_parse(ieee, skb, &aid);
2236 struct rtllib_network *network =
2237 kzalloc(sizeof(struct rtllib_network),
2242 ieee->state = RTLLIB_LINKED;
2243 ieee->assoc_id = aid;
2244 ieee->softmac_stats.rx_ass_ok++;
2245 /* station support qos */
2246 /* Let the register setting default with Legacy station */
2247 assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
2248 if (ieee->current_network.qos_data.supported == 1) {
2249 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2250 rx_stats->len - sizeof(*assoc_resp),
2251 network, rx_stats)) {
2255 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2256 network->bssht.bdHTCapBuf,
2257 network->bssht.bdHTCapLen);
2258 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2259 network->bssht.bdHTInfoBuf,
2260 network->bssht.bdHTInfoLen);
2261 if (ieee->handle_assoc_response != NULL)
2262 ieee->handle_assoc_response(ieee->dev,
2263 (struct rtllib_assoc_response_frame *)header,
2268 kfree(ieee->assocresp_ies);
2269 ieee->assocresp_ies = NULL;
2270 ies = &(assoc_resp->info_element[0].id);
2271 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
2272 ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
2274 if (ieee->assocresp_ies)
2275 memcpy(ieee->assocresp_ies, ies,
2276 ieee->assocresp_ies_len);
2278 netdev_info(ieee->dev,
2279 "%s()Warning: can't alloc memory for assocresp_ies\n",
2281 ieee->assocresp_ies_len = 0;
2283 rtllib_associate_complete(ieee);
2285 /* aid could not been allocated */
2286 ieee->softmac_stats.rx_ass_err++;
2287 netdev_info(ieee->dev,
2288 "Association response status code 0x%x\n",
2290 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
2291 schedule_delayed_work(
2292 &ieee->associate_procedure_wq, 0);
2294 rtllib_associate_abort(ieee);
2300 static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
2305 bool bSupportNmode = true, bHalfSupportNmode = false;
2307 errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
2310 ieee->softmac_stats.rx_auth_rs_err++;
2311 netdev_info(ieee->dev,
2312 "Authentication respose status code 0x%x", errcode);
2313 rtllib_associate_abort(ieee);
2317 if (ieee->open_wep || !challenge) {
2318 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2319 ieee->softmac_stats.rx_auth_rs_ok++;
2320 if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
2321 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2322 if (IsHTHalfNmodeAPs(ieee)) {
2323 bSupportNmode = true;
2324 bHalfSupportNmode = true;
2326 bSupportNmode = false;
2327 bHalfSupportNmode = false;
2331 /* Dummy wirless mode setting to avoid encryption issue */
2332 if (bSupportNmode) {
2333 ieee->SetWirelessMode(ieee->dev,
2334 ieee->current_network.mode);
2337 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2340 if ((ieee->current_network.mode == IEEE_N_24G) &&
2341 bHalfSupportNmode) {
2342 netdev_info(ieee->dev, "======>enter half N mode\n");
2343 ieee->bHalfWirelessN24GMode = true;
2345 ieee->bHalfWirelessN24GMode = false;
2347 rtllib_associate_step2(ieee);
2349 rtllib_auth_challenge(ieee, challenge, chlen);
2354 rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2355 struct rtllib_rx_stats *rx_stats)
2358 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2359 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2360 (ieee->iw_mode == IW_MODE_INFRA)) {
2361 netdev_dbg(ieee->dev,
2362 "Received authentication response");
2363 rtllib_rx_auth_resp(ieee, skb);
2364 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2365 rtllib_rx_auth_rq(ieee, skb);
2372 rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2374 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2377 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2380 /* FIXME for now repeat all the association procedure
2381 * both for disassociation and deauthentication
2383 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2384 ieee->state == RTLLIB_LINKED &&
2385 (ieee->iw_mode == IW_MODE_INFRA)) {
2386 frame_ctl = le16_to_cpu(header->frame_ctl);
2387 netdev_info(ieee->dev,
2388 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
2389 WLAN_FC_GET_STYPE(frame_ctl),
2390 ((struct rtllib_disassoc *)skb->data)->reason);
2391 ieee->state = RTLLIB_ASSOCIATING;
2392 ieee->softmac_stats.reassoc++;
2393 ieee->is_roaming = true;
2394 ieee->LinkDetectInfo.bBusyTraffic = false;
2395 rtllib_disassociate(ieee);
2396 RemovePeerTS(ieee, header->addr2);
2397 if (ieee->LedControlHandler != NULL)
2398 ieee->LedControlHandler(ieee->dev,
2399 LED_CTL_START_TO_LINK);
2401 if (!(ieee->rtllib_ap_sec_type(ieee) &
2402 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
2403 schedule_delayed_work(
2404 &ieee->associate_procedure_wq, 5);
2409 inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2410 struct sk_buff *skb,
2411 struct rtllib_rx_stats *rx_stats, u16 type,
2414 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2417 if (!ieee->proto_started)
2420 frame_ctl = le16_to_cpu(header->frame_ctl);
2421 switch (WLAN_FC_GET_STYPE(frame_ctl)) {
2422 case RTLLIB_STYPE_ASSOC_RESP:
2423 case RTLLIB_STYPE_REASSOC_RESP:
2424 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2427 case RTLLIB_STYPE_ASSOC_REQ:
2428 case RTLLIB_STYPE_REASSOC_REQ:
2429 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2430 ieee->iw_mode == IW_MODE_MASTER)
2431 rtllib_rx_assoc_rq(ieee, skb);
2433 case RTLLIB_STYPE_AUTH:
2434 rtllib_rx_auth(ieee, skb, rx_stats);
2436 case RTLLIB_STYPE_DISASSOC:
2437 case RTLLIB_STYPE_DEAUTH:
2438 rtllib_rx_deauth(ieee, skb);
2440 case RTLLIB_STYPE_MANAGE_ACT:
2441 rtllib_process_action(ieee, skb);
2449 /* following are for a simpler TX queue management.
2450 * Instead of using netif_[stop/wake]_queue the driver
2451 * will use these two functions (plus a reset one), that
2452 * will internally use the kernel netif_* and takes
2453 * care of the ieee802.11 fragmentation.
2454 * So the driver receives a fragment per time and might
2455 * call the stop function when it wants to not
2456 * have enough room to TX an entire packet.
2457 * This might be useful if each fragment needs it's own
2458 * descriptor, thus just keep a total free memory > than
2459 * the max fragmentation threshold is not enough.. If the
2460 * ieee802.11 stack passed a TXB struct then you need
2461 * to keep N free descriptors where
2462 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2463 * In this way you need just one and the 802.11 stack
2464 * will take care of buffering fragments and pass them to
2465 * to the driver later, when it wakes the queue.
2467 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2470 unsigned int queue_index = txb->queue_index;
2471 unsigned long flags;
2473 struct cb_desc *tcb_desc = NULL;
2474 unsigned long queue_len = 0;
2476 spin_lock_irqsave(&ieee->lock, flags);
2478 /* called with 2nd parm 0, no tx mgmt lock required */
2479 rtllib_sta_wakeup(ieee, 0);
2481 /* update the tx status */
2482 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2484 if (tcb_desc->bMulticast)
2485 ieee->stats.multicast++;
2487 /* if xmit available, just xmit it immediately, else just insert it to
2490 for (i = 0; i < txb->nr_frags; i++) {
2491 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
2492 if ((queue_len != 0) ||
2493 (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2494 (ieee->queue_stop)) {
2495 /* insert the skb packet to the wait queue
2496 * as for the completion function, it does not need
2497 * to check it any more.
2499 if (queue_len < 200)
2500 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2503 kfree_skb(txb->fragments[i]);
2505 ieee->softmac_data_hard_start_xmit(
2507 ieee->dev, ieee->rate);
2511 rtllib_txb_free(txb);
2513 spin_unlock_irqrestore(&ieee->lock, flags);
2517 void rtllib_reset_queue(struct rtllib_device *ieee)
2519 unsigned long flags;
2521 spin_lock_irqsave(&ieee->lock, flags);
2522 init_mgmt_queue(ieee);
2523 if (ieee->tx_pending.txb) {
2524 rtllib_txb_free(ieee->tx_pending.txb);
2525 ieee->tx_pending.txb = NULL;
2527 ieee->queue_stop = 0;
2528 spin_unlock_irqrestore(&ieee->lock, flags);
2531 EXPORT_SYMBOL(rtllib_reset_queue);
2533 void rtllib_stop_all_queues(struct rtllib_device *ieee)
2537 for (i = 0; i < ieee->dev->num_tx_queues; i++)
2538 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
2540 netif_tx_stop_all_queues(ieee->dev);
2543 void rtllib_wake_all_queues(struct rtllib_device *ieee)
2545 netif_tx_wake_all_queues(ieee->dev);
2548 /* called in user context only */
2549 static void rtllib_start_master_bss(struct rtllib_device *ieee)
2553 if (ieee->current_network.ssid_len == 0) {
2554 strncpy(ieee->current_network.ssid,
2555 RTLLIB_DEFAULT_TX_ESSID,
2558 ieee->current_network.ssid_len =
2559 strlen(RTLLIB_DEFAULT_TX_ESSID);
2563 ether_addr_copy(ieee->current_network.bssid, ieee->dev->dev_addr);
2565 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2566 ieee->state = RTLLIB_LINKED;
2567 ieee->link_change(ieee->dev);
2568 notify_wx_assoc_event(ieee);
2570 if (ieee->data_hard_resume)
2571 ieee->data_hard_resume(ieee->dev);
2573 netif_carrier_on(ieee->dev);
2576 static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
2578 /* reset hardware status */
2580 if (ieee->data_hard_resume)
2581 ieee->data_hard_resume(ieee->dev);
2583 netif_carrier_on(ieee->dev);
2587 static void rtllib_start_ibss_wq(void *data)
2589 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2590 struct rtllib_device, start_ibss_wq);
2591 /* iwconfig mode ad-hoc will schedule this and return
2592 * on the other hand this will block further iwconfig SET
2593 * operations because of the wx_mutex hold.
2594 * Anyway some most set operations set a flag to speed-up
2595 * (abort) this wq (when syncro scanning) before sleeping
2598 if (!ieee->proto_started) {
2599 netdev_info(ieee->dev, "==========oh driver down return\n");
2602 mutex_lock(&ieee->wx_mutex);
2604 if (ieee->current_network.ssid_len == 0) {
2605 strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
2606 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2610 ieee->state = RTLLIB_NOLINK;
2611 ieee->mode = IEEE_G;
2612 /* check if we have this cell in our network list */
2613 rtllib_softmac_check_all_nets(ieee);
2616 /* if not then the state is not linked. Maybe the user switched to
2617 * ad-hoc mode just after being in monitor mode, or just after
2618 * being very few time in managed mode (so the card have had no
2619 * time to scan all the chans..) or we have just run up the iface
2620 * after setting ad-hoc mode. So we have to give another try..
2621 * Here, in ibss mode, should be safe to do this without extra care
2622 * (in bss mode we had to make sure no-one tried to associate when
2623 * we had just checked the ieee->state and we was going to start the
2624 * scan) because in ibss mode the rtllib_new_net function, when
2625 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2626 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2627 * scan, that will stop at the first round because it sees the state
2630 if (ieee->state == RTLLIB_NOLINK)
2631 rtllib_start_scan_syncro(ieee, 0);
2633 /* the network definitively is not here.. create a new cell */
2634 if (ieee->state == RTLLIB_NOLINK) {
2635 netdev_info(ieee->dev, "creating new IBSS cell\n");
2636 ieee->current_network.channel = ieee->IbssStartChnl;
2638 eth_random_addr(ieee->current_network.bssid);
2640 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
2642 ieee->current_network.rates_len = 4;
2644 ieee->current_network.rates[0] =
2645 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2646 ieee->current_network.rates[1] =
2647 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2648 ieee->current_network.rates[2] =
2649 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2650 ieee->current_network.rates[3] =
2651 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
2654 ieee->current_network.rates_len = 0;
2656 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
2657 ieee->current_network.rates_ex_len = 8;
2659 ieee->current_network.rates_ex[0] =
2660 RTLLIB_OFDM_RATE_6MB;
2661 ieee->current_network.rates_ex[1] =
2662 RTLLIB_OFDM_RATE_9MB;
2663 ieee->current_network.rates_ex[2] =
2664 RTLLIB_OFDM_RATE_12MB;
2665 ieee->current_network.rates_ex[3] =
2666 RTLLIB_OFDM_RATE_18MB;
2667 ieee->current_network.rates_ex[4] =
2668 RTLLIB_OFDM_RATE_24MB;
2669 ieee->current_network.rates_ex[5] =
2670 RTLLIB_OFDM_RATE_36MB;
2671 ieee->current_network.rates_ex[6] =
2672 RTLLIB_OFDM_RATE_48MB;
2673 ieee->current_network.rates_ex[7] =
2674 RTLLIB_OFDM_RATE_54MB;
2678 ieee->current_network.rates_ex_len = 0;
2682 ieee->current_network.qos_data.supported = 0;
2683 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2684 ieee->current_network.mode = ieee->mode;
2685 ieee->current_network.atim_window = 0;
2686 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2689 netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
2690 if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2691 HTUseDefaultSetting(ieee);
2693 ieee->pHTInfo->bCurrentHTSupport = false;
2695 ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
2696 (u8 *)(&ieee->state));
2698 ieee->state = RTLLIB_LINKED;
2699 ieee->link_change(ieee->dev);
2701 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2702 if (ieee->LedControlHandler != NULL)
2703 ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
2705 rtllib_start_send_beacons(ieee);
2707 notify_wx_assoc_event(ieee);
2709 if (ieee->data_hard_resume)
2710 ieee->data_hard_resume(ieee->dev);
2712 netif_carrier_on(ieee->dev);
2714 mutex_unlock(&ieee->wx_mutex);
2717 inline void rtllib_start_ibss(struct rtllib_device *ieee)
2719 schedule_delayed_work(&ieee->start_ibss_wq, msecs_to_jiffies(150));
2722 /* this is called only in user context, with wx_mutex held */
2723 static void rtllib_start_bss(struct rtllib_device *ieee)
2725 unsigned long flags;
2727 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2728 if (!ieee->bGlobalDomain)
2731 /* check if we have already found the net we
2732 * are interested in (if any).
2733 * if not (we are disassociated and we are not
2734 * in associating / authenticating phase) start the background scanning.
2736 rtllib_softmac_check_all_nets(ieee);
2738 /* ensure no-one start an associating process (thus setting
2739 * the ieee->state to rtllib_ASSOCIATING) while we
2740 * have just checked it and we are going to enable scan.
2741 * The rtllib_new_net function is always called with
2742 * lock held (from both rtllib_softmac_check_all_nets and
2743 * the rx path), so we cannot be in the middle of such function
2745 spin_lock_irqsave(&ieee->lock, flags);
2747 if (ieee->state == RTLLIB_NOLINK)
2748 rtllib_start_scan(ieee);
2749 spin_unlock_irqrestore(&ieee->lock, flags);
2752 static void rtllib_link_change_wq(void *data)
2754 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2755 struct rtllib_device, link_change_wq);
2756 ieee->link_change(ieee->dev);
2758 /* called only in userspace context */
2759 void rtllib_disassociate(struct rtllib_device *ieee)
2761 netif_carrier_off(ieee->dev);
2762 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2763 rtllib_reset_queue(ieee);
2765 if (ieee->data_hard_stop)
2766 ieee->data_hard_stop(ieee->dev);
2767 if (IS_DOT11D_ENABLE(ieee))
2769 ieee->state = RTLLIB_NOLINK;
2770 ieee->is_set_key = false;
2773 schedule_delayed_work(&ieee->link_change_wq, 0);
2775 notify_wx_assoc_event(ieee);
2778 static void rtllib_associate_retry_wq(void *data)
2780 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2781 struct rtllib_device, associate_retry_wq);
2782 unsigned long flags;
2784 mutex_lock(&ieee->wx_mutex);
2785 if (!ieee->proto_started)
2788 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2791 /* until we do not set the state to RTLLIB_NOLINK
2792 * there are no possibility to have someone else trying
2793 * to start an association procedure (we get here with
2794 * ieee->state = RTLLIB_ASSOCIATING).
2795 * When we set the state to RTLLIB_NOLINK it is possible
2796 * that the RX path run an attempt to associate, but
2797 * both rtllib_softmac_check_all_nets and the
2798 * RX path works with ieee->lock held so there are no
2799 * problems. If we are still disassociated then start a scan.
2800 * the lock here is necessary to ensure no one try to start
2801 * an association procedure when we have just checked the
2802 * state and we are going to start the scan.
2804 ieee->beinretry = true;
2805 ieee->state = RTLLIB_NOLINK;
2807 rtllib_softmac_check_all_nets(ieee);
2809 spin_lock_irqsave(&ieee->lock, flags);
2811 if (ieee->state == RTLLIB_NOLINK)
2812 rtllib_start_scan(ieee);
2813 spin_unlock_irqrestore(&ieee->lock, flags);
2815 ieee->beinretry = false;
2817 mutex_unlock(&ieee->wx_mutex);
2820 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2822 const u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2824 struct sk_buff *skb;
2825 struct rtllib_probe_response *b;
2827 skb = rtllib_probe_resp(ieee, broadcast_addr);
2832 b = (struct rtllib_probe_response *) skb->data;
2833 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2839 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2841 struct sk_buff *skb;
2842 struct rtllib_probe_response *b;
2844 skb = rtllib_get_beacon_(ieee);
2848 b = (struct rtllib_probe_response *) skb->data;
2849 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2851 if (ieee->seq_ctrl[0] == 0xFFF)
2852 ieee->seq_ctrl[0] = 0;
2854 ieee->seq_ctrl[0]++;
2858 EXPORT_SYMBOL(rtllib_get_beacon);
2860 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2863 rtllib_stop_scan_syncro(ieee);
2864 mutex_lock(&ieee->wx_mutex);
2865 rtllib_stop_protocol(ieee, shutdown);
2866 mutex_unlock(&ieee->wx_mutex);
2868 EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
2871 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2873 if (!ieee->proto_started)
2877 ieee->proto_started = 0;
2878 ieee->proto_stoppping = 1;
2879 if (ieee->rtllib_ips_leave != NULL)
2880 ieee->rtllib_ips_leave(ieee->dev);
2883 rtllib_stop_send_beacons(ieee);
2884 del_timer_sync(&ieee->associate_timer);
2885 cancel_delayed_work_sync(&ieee->associate_retry_wq);
2886 cancel_delayed_work_sync(&ieee->start_ibss_wq);
2887 cancel_delayed_work_sync(&ieee->link_change_wq);
2888 rtllib_stop_scan(ieee);
2890 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2891 ieee->state = RTLLIB_NOLINK;
2893 if (ieee->state == RTLLIB_LINKED) {
2894 if (ieee->iw_mode == IW_MODE_INFRA)
2895 SendDisassociation(ieee, 1, WLAN_REASON_DEAUTH_LEAVING);
2896 rtllib_disassociate(ieee);
2901 ieee->proto_stoppping = 0;
2903 kfree(ieee->assocreq_ies);
2904 ieee->assocreq_ies = NULL;
2905 ieee->assocreq_ies_len = 0;
2906 kfree(ieee->assocresp_ies);
2907 ieee->assocresp_ies = NULL;
2908 ieee->assocresp_ies_len = 0;
2911 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
2913 mutex_lock(&ieee->wx_mutex);
2914 rtllib_start_protocol(ieee);
2915 mutex_unlock(&ieee->wx_mutex);
2917 EXPORT_SYMBOL(rtllib_softmac_start_protocol);
2919 void rtllib_start_protocol(struct rtllib_device *ieee)
2924 rtllib_update_active_chan_map(ieee);
2926 if (ieee->proto_started)
2929 ieee->proto_started = 1;
2931 if (ieee->current_network.channel == 0) {
2934 if (ch > MAX_CHANNEL_NUMBER)
2935 return; /* no channel found */
2936 } while (!ieee->active_channel_map[ch]);
2937 ieee->current_network.channel = ch;
2940 if (ieee->current_network.beacon_interval == 0)
2941 ieee->current_network.beacon_interval = 100;
2943 for (i = 0; i < 17; i++) {
2944 ieee->last_rxseq_num[i] = -1;
2945 ieee->last_rxfrag_num[i] = -1;
2946 ieee->last_packet_time[i] = 0;
2949 if (ieee->UpdateBeaconInterruptHandler)
2950 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
2953 /* if the user set the MAC of the ad-hoc cell and then
2954 * switch to managed mode, shall we make sure that association
2955 * attempts does not fail just because the user provide the essid
2956 * and the nic is still checking for the AP MAC ??
2958 if (ieee->iw_mode == IW_MODE_INFRA) {
2959 rtllib_start_bss(ieee);
2960 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
2961 if (ieee->UpdateBeaconInterruptHandler)
2962 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
2964 rtllib_start_ibss(ieee);
2966 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2967 rtllib_start_master_bss(ieee);
2968 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
2969 rtllib_start_monitor_mode(ieee);
2973 void rtllib_softmac_init(struct rtllib_device *ieee)
2977 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
2979 ieee->state = RTLLIB_NOLINK;
2980 for (i = 0; i < 5; i++)
2981 ieee->seq_ctrl[i] = 0;
2982 ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
2983 if (!ieee->pDot11dInfo)
2984 netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
2985 ieee->LinkDetectInfo.SlotIndex = 0;
2986 ieee->LinkDetectInfo.SlotNum = 2;
2987 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
2988 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
2989 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
2990 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
2991 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
2992 ieee->bIsAggregateFrame = false;
2994 ieee->queue_stop = 0;
2995 ieee->scanning_continue = 0;
2996 ieee->softmac_features = 0;
2999 ieee->proto_started = 0;
3000 ieee->proto_stoppping = 0;
3001 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3003 ieee->ps = RTLLIB_PS_DISABLED;
3004 ieee->sta_sleep = LPS_IS_WAKE;
3006 ieee->Regdot11HTOperationalRateSet[0] = 0xff;
3007 ieee->Regdot11HTOperationalRateSet[1] = 0xff;
3008 ieee->Regdot11HTOperationalRateSet[4] = 0x01;
3010 ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
3011 ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
3012 ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
3014 ieee->FirstIe_InScan = false;
3015 ieee->actscanning = false;
3016 ieee->beinretry = false;
3017 ieee->is_set_key = false;
3018 init_mgmt_queue(ieee);
3020 ieee->tx_pending.txb = NULL;
3022 setup_timer(&ieee->associate_timer,
3023 rtllib_associate_abort_cb,
3024 (unsigned long) ieee);
3026 setup_timer(&ieee->beacon_timer,
3027 rtllib_send_beacon_cb,
3028 (unsigned long) ieee);
3030 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3031 (void *)rtllib_link_change_wq, ieee);
3032 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3033 (void *)rtllib_start_ibss_wq, ieee);
3034 INIT_WORK_RSL(&ieee->associate_complete_wq,
3035 (void *)rtllib_associate_complete_wq, ieee);
3036 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3037 (void *)rtllib_associate_procedure_wq, ieee);
3038 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3039 (void *)rtllib_softmac_scan_wq, ieee);
3040 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3041 (void *)rtllib_associate_retry_wq, ieee);
3042 INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3045 mutex_init(&ieee->wx_mutex);
3046 mutex_init(&ieee->scan_mutex);
3047 mutex_init(&ieee->ips_mutex);
3049 spin_lock_init(&ieee->mgmt_tx_lock);
3050 spin_lock_init(&ieee->beacon_lock);
3052 tasklet_init(&ieee->ps_task,
3053 (void(*)(unsigned long)) rtllib_sta_ps,
3054 (unsigned long)ieee);
3058 void rtllib_softmac_free(struct rtllib_device *ieee)
3060 mutex_lock(&ieee->wx_mutex);
3061 kfree(ieee->pDot11dInfo);
3062 ieee->pDot11dInfo = NULL;
3063 del_timer_sync(&ieee->associate_timer);
3065 cancel_delayed_work_sync(&ieee->associate_retry_wq);
3066 cancel_delayed_work_sync(&ieee->associate_procedure_wq);
3067 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
3068 cancel_delayed_work_sync(&ieee->start_ibss_wq);
3069 cancel_delayed_work_sync(&ieee->hw_wakeup_wq);
3070 cancel_delayed_work_sync(&ieee->hw_sleep_wq);
3071 cancel_delayed_work_sync(&ieee->link_change_wq);
3072 cancel_work_sync(&ieee->associate_complete_wq);
3073 cancel_work_sync(&ieee->ips_leave_wq);
3074 cancel_work_sync(&ieee->wx_sync_scan_wq);
3075 mutex_unlock(&ieee->wx_mutex);
3076 tasklet_kill(&ieee->ps_task);
3079 /********************************************************
3080 * Start of WPA code. *
3081 * this is stolen from the ipw2200 driver *
3082 ********************************************************/
3085 static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3087 /* This is called when wpa_supplicant loads and closes the driver
3090 netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
3091 ieee->wpa_enabled = value;
3092 eth_zero_addr(ieee->ap_mac_addr);
3097 static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
3100 /* make sure WPA is enabled */
3101 rtllib_wpa_enable(ieee, 1);
3103 rtllib_disassociate(ieee);
3107 static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3113 case IEEE_MLME_STA_DEAUTH:
3116 case IEEE_MLME_STA_DISASSOC:
3117 rtllib_disassociate(ieee);
3121 netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
3129 static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3130 struct ieee_param *param, int plen)
3134 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3135 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3138 if (param->u.wpa_ie.len) {
3139 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
3144 kfree(ieee->wpa_ie);
3146 ieee->wpa_ie_len = param->u.wpa_ie.len;
3148 kfree(ieee->wpa_ie);
3149 ieee->wpa_ie = NULL;
3150 ieee->wpa_ie_len = 0;
3153 rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3157 #define AUTH_ALG_OPEN_SYSTEM 0x1
3158 #define AUTH_ALG_SHARED_KEY 0x2
3159 #define AUTH_ALG_LEAP 0x4
3160 static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3163 struct rtllib_security sec = {
3164 .flags = SEC_AUTH_MODE,
3167 if (value & AUTH_ALG_SHARED_KEY) {
3168 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3170 ieee->auth_mode = 1;
3171 } else if (value & AUTH_ALG_OPEN_SYSTEM) {
3172 sec.auth_mode = WLAN_AUTH_OPEN;
3174 ieee->auth_mode = 0;
3175 } else if (value & AUTH_ALG_LEAP) {
3176 sec.auth_mode = WLAN_AUTH_LEAP >> 6;
3178 ieee->auth_mode = 2;
3182 if (ieee->set_security)
3183 ieee->set_security(ieee->dev, &sec);
3188 static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3191 unsigned long flags;
3194 case IEEE_PARAM_WPA_ENABLED:
3195 ret = rtllib_wpa_enable(ieee, value);
3198 case IEEE_PARAM_TKIP_COUNTERMEASURES:
3199 ieee->tkip_countermeasures = value;
3202 case IEEE_PARAM_DROP_UNENCRYPTED:
3206 * wpa_supplicant calls set_wpa_enabled when the driver
3207 * is loaded and unloaded, regardless of if WPA is being
3208 * used. No other calls are made which can be used to
3209 * determine if encryption will be used or not prior to
3210 * association being expected. If encryption is not being
3211 * used, drop_unencrypted is set to false, else true -- we
3212 * can use this to determine if the CAP_PRIVACY_ON bit should
3215 struct rtllib_security sec = {
3216 .flags = SEC_ENABLED,
3219 ieee->drop_unencrypted = value;
3220 /* We only change SEC_LEVEL for open mode. Others
3221 * are set by ipw_wpa_set_encryption.
3224 sec.flags |= SEC_LEVEL;
3225 sec.level = SEC_LEVEL_0;
3227 sec.flags |= SEC_LEVEL;
3228 sec.level = SEC_LEVEL_1;
3230 if (ieee->set_security)
3231 ieee->set_security(ieee->dev, &sec);
3235 case IEEE_PARAM_PRIVACY_INVOKED:
3236 ieee->privacy_invoked = value;
3239 case IEEE_PARAM_AUTH_ALGS:
3240 ret = rtllib_wpa_set_auth_algs(ieee, value);
3243 case IEEE_PARAM_IEEE_802_1X:
3244 ieee->ieee802_1x = value;
3246 case IEEE_PARAM_WPAX_SELECT:
3247 spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
3248 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
3252 netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
3259 /* implementation borrowed from hostap driver */
3260 static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
3261 struct ieee_param *param, int param_len,
3265 struct lib80211_crypto_ops *ops;
3266 struct lib80211_crypt_data **crypt;
3268 struct rtllib_security sec = {
3272 param->u.crypt.err = 0;
3273 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3276 (int) ((char *) param->u.crypt.key - (char *) param) +
3277 param->u.crypt.key_len) {
3278 netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
3279 param->u.crypt.key_len);
3282 if (is_broadcast_ether_addr(param->sta_addr)) {
3283 if (param->u.crypt.idx >= NUM_WEP_KEYS)
3285 crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
3290 if (strcmp(param->u.crypt.alg, "none") == 0) {
3293 sec.level = SEC_LEVEL_0;
3294 sec.flags |= SEC_ENABLED | SEC_LEVEL;
3295 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3300 sec.flags |= SEC_ENABLED;
3302 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3303 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3304 strcmp(param->u.crypt.alg, "R-TKIP"))
3305 goto skip_host_crypt;
3307 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3308 if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3309 request_module("rtllib_crypt_wep");
3310 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3311 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3312 request_module("rtllib_crypt_tkip");
3313 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3314 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3315 request_module("rtllib_crypt_ccmp");
3316 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3319 netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
3320 param->u.crypt.alg);
3321 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3325 if (*crypt == NULL || (*crypt)->ops != ops) {
3326 struct lib80211_crypt_data *new_crypt;
3328 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3330 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
3331 if (new_crypt == NULL) {
3335 new_crypt->ops = ops;
3336 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
3338 new_crypt->ops->init(param->u.crypt.idx);
3340 if (new_crypt->priv == NULL) {
3342 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3350 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3351 (*crypt)->ops->set_key(param->u.crypt.key,
3352 param->u.crypt.key_len, param->u.crypt.seq,
3353 (*crypt)->priv) < 0) {
3354 netdev_info(ieee->dev, "key setting failed\n");
3355 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3361 if (param->u.crypt.set_tx) {
3362 ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
3363 sec.active_key = param->u.crypt.idx;
3364 sec.flags |= SEC_ACTIVE_KEY;
3366 sec.flags &= ~SEC_ACTIVE_KEY;
3368 if (param->u.crypt.alg != NULL) {
3369 memcpy(sec.keys[param->u.crypt.idx],
3371 param->u.crypt.key_len);
3372 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3373 sec.flags |= (1 << param->u.crypt.idx);
3375 if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3376 sec.flags |= SEC_LEVEL;
3377 sec.level = SEC_LEVEL_1;
3378 } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3379 sec.flags |= SEC_LEVEL;
3380 sec.level = SEC_LEVEL_2;
3381 } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3382 sec.flags |= SEC_LEVEL;
3383 sec.level = SEC_LEVEL_3;
3387 if (ieee->set_security)
3388 ieee->set_security(ieee->dev, &sec);
3390 /* Do not reset port if card is in Managed mode since resetting will
3391 * generate new IEEE 802.11 authentication which may end up in looping
3392 * with IEEE 802.1X. If your hardware requires a reset after WEP
3393 * configuration (for example... Prism2), implement the reset_port in
3394 * the callbacks structures used to initialize the 802.11 stack.
3396 if (ieee->reset_on_keychange &&
3397 ieee->iw_mode != IW_MODE_INFRA &&
3399 ieee->reset_port(ieee->dev)) {
3400 netdev_info(ieee->dev, "reset_port failed\n");
3401 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3408 static inline struct sk_buff *
3409 rtllib_disauth_skb(struct rtllib_network *beacon,
3410 struct rtllib_device *ieee, u16 asRsn)
3412 struct sk_buff *skb;
3413 struct rtllib_disauth *disauth;
3414 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3416 skb = dev_alloc_skb(len);
3420 skb_reserve(skb, ieee->tx_headroom);
3422 disauth = (struct rtllib_disauth *) skb_put(skb,
3423 sizeof(struct rtllib_disauth));
3424 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3425 disauth->header.duration_id = 0;
3427 ether_addr_copy(disauth->header.addr1, beacon->bssid);
3428 ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
3429 ether_addr_copy(disauth->header.addr3, beacon->bssid);
3431 disauth->reason = cpu_to_le16(asRsn);
3435 static inline struct sk_buff *
3436 rtllib_disassociate_skb(struct rtllib_network *beacon,
3437 struct rtllib_device *ieee, u16 asRsn)
3439 struct sk_buff *skb;
3440 struct rtllib_disassoc *disass;
3441 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3443 skb = dev_alloc_skb(len);
3448 skb_reserve(skb, ieee->tx_headroom);
3450 disass = (struct rtllib_disassoc *) skb_put(skb,
3451 sizeof(struct rtllib_disassoc));
3452 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3453 disass->header.duration_id = 0;
3455 ether_addr_copy(disass->header.addr1, beacon->bssid);
3456 ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
3457 ether_addr_copy(disass->header.addr3, beacon->bssid);
3459 disass->reason = cpu_to_le16(asRsn);
3463 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3465 struct rtllib_network *beacon = &ieee->current_network;
3466 struct sk_buff *skb;
3469 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3471 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
3474 softmac_mgmt_xmit(skb, ieee);
3477 u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3479 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
3480 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
3481 int wpa_ie_len = ieee->wpa_ie_len;
3482 struct lib80211_crypt_data *crypt;
3485 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
3486 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3487 || (ieee->host_encrypt && crypt && crypt->ops &&
3488 (strcmp(crypt->ops->name, "R-WEP") == 0));
3491 if (encrypt && (wpa_ie_len == 0)) {
3493 } else if ((wpa_ie_len != 0)) {
3494 if (((ieee->wpa_ie[0] == 0xdd) &&
3495 (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3496 ((ieee->wpa_ie[0] == 0x30) &&
3497 (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
3498 return SEC_ALG_CCMP;
3500 return SEC_ALG_TKIP;
3502 return SEC_ALG_NONE;
3506 int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
3509 struct ieee_param *param;
3512 mutex_lock(&ieee->wx_mutex);
3514 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3519 param = memdup_user(p->pointer, p->length);
3520 if (IS_ERR(param)) {
3521 ret = PTR_ERR(param);
3525 switch (param->cmd) {
3526 case IEEE_CMD_SET_WPA_PARAM:
3527 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3528 param->u.wpa_param.value);
3531 case IEEE_CMD_SET_WPA_IE:
3532 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3535 case IEEE_CMD_SET_ENCRYPTION:
3536 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3540 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3541 param->u.mlme.reason_code);
3545 netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
3551 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3556 mutex_unlock(&ieee->wx_mutex);
3560 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
3562 static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
3566 bool bFilterOutNonAssociatedBSSID = false;
3568 rtllib->state = RTLLIB_NOLINK;
3570 for (i = 0; i < 6; i++)
3571 rtllib->current_network.bssid[i] = 0x55;
3573 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3574 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3575 rtllib->current_network.bssid);
3576 OpMode = RT_OP_MODE_NO_LINK;
3577 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3578 rtllib_stop_send_beacons(rtllib);
3580 bFilterOutNonAssociatedBSSID = false;
3581 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3582 (u8 *)(&bFilterOutNonAssociatedBSSID));
3583 notify_wx_assoc_event(rtllib);
3587 static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
3588 u8 *asSta, u8 asRsn)
3593 RemovePeerTS(rtllib, asSta);
3595 if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
3596 rtllib->state = RTLLIB_NOLINK;
3598 for (i = 0; i < 6; i++)
3599 rtllib->current_network.bssid[i] = 0x22;
3600 OpMode = RT_OP_MODE_NO_LINK;
3601 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3602 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3604 rtllib_disassociate(rtllib);
3606 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3607 rtllib->current_network.bssid);
3614 rtllib_MgntDisconnectAP(
3615 struct rtllib_device *rtllib,
3619 bool bFilterOutNonAssociatedBSSID = false;
3621 bFilterOutNonAssociatedBSSID = false;
3622 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3623 (u8 *)(&bFilterOutNonAssociatedBSSID));
3624 rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3627 rtllib->state = RTLLIB_NOLINK;
3630 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
3632 if (rtllib->ps != RTLLIB_PS_DISABLED)
3633 rtllib->sta_wake_up(rtllib->dev);
3635 if (rtllib->state == RTLLIB_LINKED) {
3636 if (rtllib->iw_mode == IW_MODE_ADHOC)
3637 rtllib_MgntDisconnectIBSS(rtllib);
3638 if (rtllib->iw_mode == IW_MODE_INFRA)
3639 rtllib_MgntDisconnectAP(rtllib, asRsn);
3645 EXPORT_SYMBOL(rtllib_MgntDisconnect);
3647 void notify_wx_assoc_event(struct rtllib_device *ieee)
3649 union iwreq_data wrqu;
3651 if (ieee->cannot_notify)
3654 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3655 if (ieee->state == RTLLIB_LINKED)
3656 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3660 netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
3662 eth_zero_addr(wrqu.ap_addr.sa_data);
3664 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3666 EXPORT_SYMBOL(notify_wx_assoc_event);