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>
25 short rtllib_is_54g(struct rtllib_network *net)
27 return (net->rates_ex_len > 0) || (net->rates_len > 4);
30 short rtllib_is_shortslot(const struct rtllib_network *net)
32 return net->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME;
35 /* returns the total length needed for placing the RATE MFIE
36 * tag and the EXTENDED RATE MFIE tag if needed.
37 * It encludes two bytes per tag for the tag itself and its len
39 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
41 unsigned int rate_len = 0;
43 if (ieee->modulation & RTLLIB_CCK_MODULATION)
44 rate_len = RTLLIB_CCK_RATE_LEN + 2;
46 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
48 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
53 /* place the MFIE rate, tag to the memory (double) pointed.
54 * Then it updates the pointer so that
55 * it points after the new MFIE tag added.
57 static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
61 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
62 *tag++ = MFIE_TYPE_RATES;
64 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
65 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
66 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
67 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
70 /* We may add an option for custom rates that specific HW
76 static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
80 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
81 *tag++ = MFIE_TYPE_RATES_EX;
83 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
84 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
85 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
86 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
87 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
88 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
89 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
90 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
92 /* We may add an option for custom rates that specific HW might
98 static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
102 *tag++ = MFIE_TYPE_GENERIC;
114 void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
118 *tag++ = MFIE_TYPE_GENERIC;
129 netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
132 static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
136 nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
138 /* if the queue is full but we have newer frames then
139 * just overwrites the oldest.
141 * if (nh == ieee->mgmt_queue_tail)
144 ieee->mgmt_queue_head = nh;
145 ieee->mgmt_queue_ring[nh] = skb;
149 static struct sk_buff *dequeue_mgmt(struct rtllib_device *ieee)
153 if (ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
156 ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
158 ieee->mgmt_queue_tail =
159 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
164 static void init_mgmt_queue(struct rtllib_device *ieee)
166 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
171 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
178 for (i = 0; i < ieee->current_network.rates_len; i++) {
179 BasicRate = ieee->current_network.rates[i]&0x7F;
180 if (!rtllib_is_cck_rate(BasicRate)) {
181 if (QueryRate == 0) {
182 QueryRate = BasicRate;
184 if (BasicRate < QueryRate)
185 QueryRate = BasicRate;
190 if (QueryRate == 0) {
192 netdev_info(ieee->dev, "No BasicRate found!!\n");
197 static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
199 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
202 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
205 rate = ieee->basic_rate & 0x7f;
208 if (ieee->mode == IEEE_A ||
209 ieee->mode == IEEE_N_5G ||
210 (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
219 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
222 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
223 struct rtllib_hdr_3addr *header =
224 (struct rtllib_hdr_3addr *) skb->data;
226 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
228 spin_lock_irqsave(&ieee->lock, flags);
230 /* called with 2nd param 0, no mgmt lock required */
231 rtllib_sta_wakeup(ieee, 0);
233 if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
234 tcb_desc->queue_index = BEACON_QUEUE;
236 tcb_desc->queue_index = MGNT_QUEUE;
238 if (ieee->disable_mgnt_queue)
239 tcb_desc->queue_index = HIGH_QUEUE;
241 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
242 tcb_desc->RATRIndex = 7;
243 tcb_desc->bTxDisableRateFallBack = 1;
244 tcb_desc->bTxUseDriverAssingedRate = 1;
246 if (ieee->queue_stop) {
247 enqueue_mgmt(ieee, skb);
249 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
251 if (ieee->seq_ctrl[0] == 0xFFF)
252 ieee->seq_ctrl[0] = 0;
256 /* avoid watchdog triggers */
257 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
261 spin_unlock_irqrestore(&ieee->lock, flags);
263 spin_unlock_irqrestore(&ieee->lock, flags);
264 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
266 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
268 if (ieee->seq_ctrl[0] == 0xFFF)
269 ieee->seq_ctrl[0] = 0;
273 /* check whether the managed packet queued greater than 5 */
274 if (!ieee->check_nic_enough_desc(ieee->dev, tcb_desc->queue_index) ||
275 (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0) ||
276 (ieee->queue_stop)) {
277 /* insert the skb packet to the management queue
279 * as for the completion function, it does not need
280 * to check it any more.
282 netdev_info(ieee->dev,
283 "%s():insert to waitqueue, queue_index:%d!\n",
284 __func__, tcb_desc->queue_index);
285 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
288 ieee->softmac_hard_start_xmit(skb, ieee->dev);
290 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
294 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
295 struct rtllib_device *ieee)
297 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
298 struct rtllib_hdr_3addr *header =
299 (struct rtllib_hdr_3addr *) skb->data;
301 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
303 fc = le16_to_cpu(header->frame_ctl);
304 type = WLAN_FC_GET_TYPE(fc);
305 stype = WLAN_FC_GET_STYPE(fc);
308 if (stype != RTLLIB_STYPE_PSPOLL)
309 tcb_desc->queue_index = MGNT_QUEUE;
311 tcb_desc->queue_index = HIGH_QUEUE;
313 if (ieee->disable_mgnt_queue)
314 tcb_desc->queue_index = HIGH_QUEUE;
317 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
318 tcb_desc->RATRIndex = 7;
319 tcb_desc->bTxDisableRateFallBack = 1;
320 tcb_desc->bTxUseDriverAssingedRate = 1;
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;
331 /* avoid watchdog triggers */
332 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
336 if (type != RTLLIB_FTYPE_CTL) {
337 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
339 if (ieee->seq_ctrl[0] == 0xFFF)
340 ieee->seq_ctrl[0] = 0;
344 ieee->softmac_hard_start_xmit(skb, ieee->dev);
349 static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
351 unsigned int len, rate_len;
354 struct rtllib_probe_request *req;
356 len = ieee->current_network.ssid_len;
358 rate_len = rtllib_MFIE_rate_len(ieee);
360 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
361 2 + len + rate_len + ieee->tx_headroom);
366 skb_reserve(skb, ieee->tx_headroom);
368 req = (struct rtllib_probe_request *) skb_put(skb,
369 sizeof(struct rtllib_probe_request));
370 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
371 req->header.duration_id = 0;
373 memset(req->header.addr1, 0xff, ETH_ALEN);
374 memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
375 memset(req->header.addr3, 0xff, ETH_ALEN);
377 tag = (u8 *) skb_put(skb, len + 2 + rate_len);
379 *tag++ = MFIE_TYPE_SSID;
381 memcpy(tag, ieee->current_network.ssid, len);
384 rtllib_MFIE_Brate(ieee, &tag);
385 rtllib_MFIE_Grate(ieee, &tag);
390 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
392 static void rtllib_send_beacon(struct rtllib_device *ieee)
398 skb = rtllib_get_beacon_(ieee);
401 softmac_mgmt_xmit(skb, ieee);
402 ieee->softmac_stats.tx_beacons++;
405 if (ieee->beacon_txing && ieee->ieee_up)
406 mod_timer(&ieee->beacon_timer, jiffies +
407 (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
411 static void rtllib_send_beacon_cb(unsigned long _ieee)
413 struct rtllib_device *ieee =
414 (struct rtllib_device *) _ieee;
417 spin_lock_irqsave(&ieee->beacon_lock, flags);
418 rtllib_send_beacon(ieee);
419 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
422 /* Enables network monitor mode, all rx packets will be received. */
423 void rtllib_EnableNetMonitorMode(struct net_device *dev,
426 struct rtllib_device *ieee = netdev_priv_rsl(dev);
428 netdev_info(dev, "========>Enter Monitor Mode\n");
430 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
434 /* Disables network monitor mode. Only packets destinated to
435 * us will be received.
437 void rtllib_DisableNetMonitorMode(struct net_device *dev,
440 struct rtllib_device *ieee = netdev_priv_rsl(dev);
442 netdev_info(dev, "========>Exit Monitor Mode\n");
444 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
448 /* Enables the specialized promiscuous mode required by Intel.
449 * In this mode, Intel intends to hear traffics from/to other STAs in the
450 * same BSS. Therefore we don't have to disable checking BSSID and we only need
451 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
452 * packets from other STA.
454 void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
457 bool bFilterOutNonAssociatedBSSID = false;
459 struct rtllib_device *ieee = netdev_priv_rsl(dev);
461 netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
463 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
464 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
465 (u8 *)&bFilterOutNonAssociatedBSSID);
467 ieee->bNetPromiscuousMode = true;
469 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
472 /* Disables the specialized promiscuous mode required by Intel.
473 * See MgntEnableIntelPromiscuousMode for detail.
475 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
478 bool bFilterOutNonAssociatedBSSID = true;
480 struct rtllib_device *ieee = netdev_priv_rsl(dev);
482 netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
484 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
485 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
486 (u8 *)&bFilterOutNonAssociatedBSSID);
488 ieee->bNetPromiscuousMode = false;
490 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
492 static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
496 skb = rtllib_probe_req(ieee);
498 softmac_mgmt_xmit(skb, ieee);
499 ieee->softmac_stats.tx_probe_rq++;
504 void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
506 if (ieee->active_scan && (ieee->softmac_features &
507 IEEE_SOFTMAC_PROBERQ)) {
508 rtllib_send_probe(ieee, 0);
509 rtllib_send_probe(ieee, 0);
513 static void rtllib_softmac_hint11d_wq(void *data)
517 void rtllib_update_active_chan_map(struct rtllib_device *ieee)
519 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
520 MAX_CHANNEL_NUMBER+1);
523 /* this performs syncro scan blocking the caller until all channels
524 * in the allowed channel map has been checked.
526 void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
528 union iwreq_data wrqu;
531 rtllib_update_active_chan_map(ieee);
533 ieee->be_scan_inprogress = true;
535 down(&ieee->scan_sem);
540 if (ch > MAX_CHANNEL_NUMBER)
541 goto out; /* scan completed */
542 } while (!ieee->active_channel_map[ch]);
544 /* this function can be called in two situations
545 * 1- We have switched to ad-hoc mode and we are
546 * performing a complete syncro scan before conclude
547 * there are no interesting cell and to create a
548 * new one. In this case the link state is
549 * RTLLIB_NOLINK until we found an interesting cell.
550 * If so the ieee8021_new_net, called by the RX path
551 * will set the state to RTLLIB_LINKED, so we stop
553 * 2- We are linked and the root uses run iwlist scan.
554 * So we switch to RTLLIB_LINKED_SCANNING to remember
555 * that we are still logically linked (not interested in
556 * new network events, despite for updating the net list,
557 * but we are temporarly 'unlinked' as the driver shall
558 * not filter RX frames and the channel is changing.
559 * So the only situation in which are interested is to check
560 * if the state become LINKED because of the #1 situation
563 if (ieee->state == RTLLIB_LINKED)
565 if (ieee->sync_scan_hurryup) {
566 netdev_info(ieee->dev,
567 "============>sync_scan_hurryup out\n");
571 ieee->set_chan(ieee->dev, ch);
572 if (ieee->active_channel_map[ch] == 1)
573 rtllib_send_probe_requests(ieee, 0);
575 /* this prevent excessive time wait when we
576 * need to wait for a syncro scan to end..
578 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
581 ieee->actscanning = false;
582 ieee->sync_scan_hurryup = 0;
584 if (ieee->state >= RTLLIB_LINKED) {
585 if (IS_DOT11D_ENABLE(ieee))
586 DOT11D_ScanComplete(ieee);
590 ieee->be_scan_inprogress = false;
592 memset(&wrqu, 0, sizeof(wrqu));
593 wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
596 static void rtllib_softmac_scan_wq(void *data)
598 struct rtllib_device *ieee = container_of_dwork_rsl(data,
599 struct rtllib_device, softmac_scan_wq);
600 u8 last_channel = ieee->current_network.channel;
602 rtllib_update_active_chan_map(ieee);
606 if (rtllib_act_scanning(ieee, true))
609 down(&ieee->scan_sem);
611 if (ieee->eRFPowerState == eRfOff) {
612 netdev_info(ieee->dev,
613 "======>%s():rf state is eRfOff, return\n",
619 ieee->current_network.channel =
620 (ieee->current_network.channel + 1) %
622 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
623 if (!ieee->active_channel_map[ieee->current_network.channel])
624 ieee->current_network.channel = 6;
625 goto out; /* no good chans */
627 } while (!ieee->active_channel_map[ieee->current_network.channel]);
629 if (ieee->scanning_continue == 0)
632 ieee->set_chan(ieee->dev, ieee->current_network.channel);
634 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
635 rtllib_send_probe_requests(ieee, 0);
637 queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq,
638 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
644 if (IS_DOT11D_ENABLE(ieee))
645 DOT11D_ScanComplete(ieee);
646 ieee->current_network.channel = last_channel;
649 ieee->actscanning = false;
650 ieee->scan_watch_dog = 0;
651 ieee->scanning_continue = 0;
657 static void rtllib_beacons_start(struct rtllib_device *ieee)
661 spin_lock_irqsave(&ieee->beacon_lock, flags);
663 ieee->beacon_txing = 1;
664 rtllib_send_beacon(ieee);
666 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
669 static void rtllib_beacons_stop(struct rtllib_device *ieee)
673 spin_lock_irqsave(&ieee->beacon_lock, flags);
675 ieee->beacon_txing = 0;
676 del_timer_sync(&ieee->beacon_timer);
678 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
683 void rtllib_stop_send_beacons(struct rtllib_device *ieee)
685 if (ieee->stop_send_beacons)
686 ieee->stop_send_beacons(ieee->dev);
687 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
688 rtllib_beacons_stop(ieee);
690 EXPORT_SYMBOL(rtllib_stop_send_beacons);
693 void rtllib_start_send_beacons(struct rtllib_device *ieee)
695 if (ieee->start_send_beacons)
696 ieee->start_send_beacons(ieee->dev);
697 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
698 rtllib_beacons_start(ieee);
700 EXPORT_SYMBOL(rtllib_start_send_beacons);
703 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
705 down(&ieee->scan_sem);
706 ieee->scan_watch_dog = 0;
707 if (ieee->scanning_continue == 1) {
708 ieee->scanning_continue = 0;
709 ieee->actscanning = false;
711 cancel_delayed_work(&ieee->softmac_scan_wq);
717 void rtllib_stop_scan(struct rtllib_device *ieee)
719 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
720 rtllib_softmac_stop_scan(ieee);
722 if (ieee->rtllib_stop_hw_scan)
723 ieee->rtllib_stop_hw_scan(ieee->dev);
726 EXPORT_SYMBOL(rtllib_stop_scan);
728 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
730 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
731 ieee->sync_scan_hurryup = 1;
733 if (ieee->rtllib_stop_hw_scan)
734 ieee->rtllib_stop_hw_scan(ieee->dev);
737 EXPORT_SYMBOL(rtllib_stop_scan_syncro);
739 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
741 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
743 return ieee->be_scan_inprogress;
745 return ieee->actscanning || ieee->be_scan_inprogress;
747 return test_bit(STATUS_SCANNING, &ieee->status);
750 EXPORT_SYMBOL(rtllib_act_scanning);
752 /* called with ieee->lock held */
753 static void rtllib_start_scan(struct rtllib_device *ieee)
755 RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
756 if (ieee->rtllib_ips_leave_wq != NULL)
757 ieee->rtllib_ips_leave_wq(ieee->dev);
759 if (IS_DOT11D_ENABLE(ieee)) {
760 if (IS_COUNTRY_IE_VALID(ieee))
761 RESET_CIE_WATCHDOG(ieee);
763 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
764 if (ieee->scanning_continue == 0) {
765 ieee->actscanning = true;
766 ieee->scanning_continue = 1;
767 queue_delayed_work_rsl(ieee->wq,
768 &ieee->softmac_scan_wq, 0);
771 if (ieee->rtllib_start_hw_scan)
772 ieee->rtllib_start_hw_scan(ieee->dev);
776 /* called with wx_sem held */
777 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
779 if (IS_DOT11D_ENABLE(ieee)) {
780 if (IS_COUNTRY_IE_VALID(ieee))
781 RESET_CIE_WATCHDOG(ieee);
783 ieee->sync_scan_hurryup = 0;
784 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
785 rtllib_softmac_scan_syncro(ieee, is_mesh);
787 if (ieee->rtllib_start_hw_scan)
788 ieee->rtllib_start_hw_scan(ieee->dev);
791 EXPORT_SYMBOL(rtllib_start_scan_syncro);
793 inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
794 struct rtllib_device *ieee, int challengelen, u8 *daddr)
797 struct rtllib_authentication *auth;
800 len = sizeof(struct rtllib_authentication) + challengelen +
801 ieee->tx_headroom + 4;
802 skb = dev_alloc_skb(len);
807 skb_reserve(skb, ieee->tx_headroom);
809 auth = (struct rtllib_authentication *)
810 skb_put(skb, sizeof(struct rtllib_authentication));
812 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
814 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
816 auth->header.duration_id = cpu_to_le16(0x013a);
817 memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
818 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
819 memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
820 if (ieee->auth_mode == 0)
821 auth->algorithm = WLAN_AUTH_OPEN;
822 else if (ieee->auth_mode == 1)
823 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
824 else if (ieee->auth_mode == 2)
825 auth->algorithm = WLAN_AUTH_OPEN;
826 auth->transaction = cpu_to_le16(ieee->associate_seq);
827 ieee->associate_seq++;
829 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
834 static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
838 struct rtllib_probe_response *beacon_buf;
839 struct sk_buff *skb = NULL;
841 int atim_len, erp_len;
842 struct lib80211_crypt_data *crypt;
844 char *ssid = ieee->current_network.ssid;
845 int ssid_len = ieee->current_network.ssid_len;
846 int rate_len = ieee->current_network.rates_len+2;
847 int rate_ex_len = ieee->current_network.rates_ex_len;
848 int wpa_ie_len = ieee->wpa_ie_len;
849 u8 erpinfo_content = 0;
851 u8 *tmp_ht_cap_buf = NULL;
852 u8 tmp_ht_cap_len = 0;
853 u8 *tmp_ht_info_buf = NULL;
854 u8 tmp_ht_info_len = 0;
855 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
856 u8 *tmp_generic_ie_buf = NULL;
857 u8 tmp_generic_ie_len = 0;
862 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
867 if ((ieee->current_network.mode == IEEE_G) ||
868 (ieee->current_network.mode == IEEE_N_24G &&
869 ieee->pHTInfo->bCurSuppCCK)) {
872 if (ieee->current_network.buseprotection)
873 erpinfo_content |= ERP_UseProtection;
877 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
878 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
879 ((0 == strcmp(crypt->ops->name, "R-WEP") || wpa_ie_len));
880 if (ieee->pHTInfo->bCurrentHTSupport) {
881 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
882 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
883 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
884 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
885 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
886 &tmp_ht_cap_len, encrypt, false);
887 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
890 if (pHTInfo->bRegRT2RTAggregation) {
891 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
893 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
894 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
895 &tmp_generic_ie_len);
899 beacon_size = sizeof(struct rtllib_probe_response)+2+
900 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
901 + wpa_ie_len + ieee->tx_headroom;
902 skb = dev_alloc_skb(beacon_size);
906 skb_reserve(skb, ieee->tx_headroom);
908 beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
909 (beacon_size - ieee->tx_headroom));
910 memcpy(beacon_buf->header.addr1, dest, ETH_ALEN);
911 memcpy(beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
912 memcpy(beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
914 beacon_buf->header.duration_id = 0;
915 beacon_buf->beacon_interval =
916 cpu_to_le16(ieee->current_network.beacon_interval);
917 beacon_buf->capability =
918 cpu_to_le16(ieee->current_network.capability &
919 WLAN_CAPABILITY_IBSS);
920 beacon_buf->capability |=
921 cpu_to_le16(ieee->current_network.capability &
922 WLAN_CAPABILITY_SHORT_PREAMBLE);
924 if (ieee->short_slot && (ieee->current_network.capability &
925 WLAN_CAPABILITY_SHORT_SLOT_TIME))
926 beacon_buf->capability |=
927 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
929 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
931 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
934 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
935 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
936 beacon_buf->info_element[0].len = ssid_len;
938 tag = (u8 *) beacon_buf->info_element[0].data;
940 memcpy(tag, ssid, ssid_len);
944 *(tag++) = MFIE_TYPE_RATES;
945 *(tag++) = rate_len-2;
946 memcpy(tag, ieee->current_network.rates, rate_len-2);
949 *(tag++) = MFIE_TYPE_DS_SET;
951 *(tag++) = ieee->current_network.channel;
955 *(tag++) = MFIE_TYPE_IBSS_SET;
957 val16 = ieee->current_network.atim_window;
958 memcpy((u8 *)tag, (u8 *)&val16, 2);
963 *(tag++) = MFIE_TYPE_ERP;
965 *(tag++) = erpinfo_content;
968 *(tag++) = MFIE_TYPE_RATES_EX;
969 *(tag++) = rate_ex_len-2;
970 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
971 tag += rate_ex_len-2;
975 if (ieee->iw_mode == IW_MODE_ADHOC)
976 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
977 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
978 tag += ieee->wpa_ie_len;
983 static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
988 struct lib80211_crypt_data *crypt;
989 struct rtllib_assoc_response_frame *assoc;
992 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
993 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
996 skb = dev_alloc_skb(len);
1001 skb_reserve(skb, ieee->tx_headroom);
1003 assoc = (struct rtllib_assoc_response_frame *)
1004 skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
1006 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
1007 memcpy(assoc->header.addr1, dest, ETH_ALEN);
1008 memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1009 memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1010 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
1011 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
1014 if (ieee->short_slot)
1015 assoc->capability |=
1016 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1018 if (ieee->host_encrypt)
1019 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1023 encrypt = (crypt && crypt->ops);
1026 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1029 assoc->aid = cpu_to_le16(ieee->assoc_id);
1030 if (ieee->assoc_id == 0x2007)
1035 tag = (u8 *) skb_put(skb, rate_len);
1036 rtllib_MFIE_Brate(ieee, &tag);
1037 rtllib_MFIE_Grate(ieee, &tag);
1042 static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
1045 struct sk_buff *skb = NULL;
1046 struct rtllib_authentication *auth;
1047 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
1049 skb = dev_alloc_skb(len);
1053 skb->len = sizeof(struct rtllib_authentication);
1055 skb_reserve(skb, ieee->tx_headroom);
1057 auth = (struct rtllib_authentication *)
1058 skb_put(skb, sizeof(struct rtllib_authentication));
1060 auth->status = cpu_to_le16(status);
1061 auth->transaction = cpu_to_le16(2);
1062 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1064 memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1065 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1066 memcpy(auth->header.addr1, dest, ETH_ALEN);
1067 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1073 static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
1075 struct sk_buff *skb;
1076 struct rtllib_hdr_3addr *hdr;
1078 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
1082 skb_reserve(skb, ieee->tx_headroom);
1084 hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
1085 sizeof(struct rtllib_hdr_3addr));
1087 memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
1088 memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
1089 memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
1091 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1092 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
1093 (pwr ? RTLLIB_FCTL_PM : 0));
1100 static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
1102 struct sk_buff *skb;
1103 struct rtllib_pspoll_hdr *hdr;
1105 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
1109 skb_reserve(skb, ieee->tx_headroom);
1111 hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
1112 sizeof(struct rtllib_pspoll_hdr));
1114 memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN);
1115 memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN);
1117 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
1118 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1125 static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
1127 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1130 softmac_mgmt_xmit(buf, ieee);
1134 static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
1136 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1139 softmac_mgmt_xmit(buf, ieee);
1143 static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
1145 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
1148 softmac_mgmt_xmit(buf, ieee);
1152 inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1157 if ((ieee->PMKIDList[i].bUsed) &&
1158 (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
1161 } while (i < NUM_PMKID_CACHE);
1163 if (i == NUM_PMKID_CACHE)
1168 inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
1169 struct rtllib_device *ieee)
1171 struct sk_buff *skb;
1172 struct rtllib_assoc_request_frame *hdr;
1175 u8 *ht_cap_buf = NULL;
1177 u8 *realtek_ie_buf = NULL;
1178 u8 realtek_ie_len = 0;
1179 int wpa_ie_len = ieee->wpa_ie_len;
1180 int wps_ie_len = ieee->wps_ie_len;
1181 unsigned int ckip_ie_len = 0;
1182 unsigned int ccxrm_ie_len = 0;
1183 unsigned int cxvernum_ie_len = 0;
1184 struct lib80211_crypt_data *crypt;
1188 unsigned int rate_len = (beacon->rates_len ?
1189 (beacon->rates_len + 2) : 0) +
1190 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1193 unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1194 unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
1198 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1200 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
1201 ((0 == strcmp(crypt->ops->name, "R-WEP") ||
1206 if ((ieee->rtllib_ap_sec_type &&
1207 (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
1208 ieee->bForcedBgMode) {
1209 ieee->pHTInfo->bEnableHT = 0;
1210 ieee->mode = WIRELESS_MODE_G;
1213 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1214 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
1215 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
1216 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1218 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1219 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
1221 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1222 HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1227 if (beacon->bCkipSupported)
1229 if (beacon->bCcxRmEnable)
1231 if (beacon->BssCcxVerNumber >= 2)
1232 cxvernum_ie_len = 5+2;
1234 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
1235 if (PMKCacheIdx >= 0) {
1237 netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
1240 len = sizeof(struct rtllib_assoc_request_frame) + 2
1252 + ieee->tx_headroom;
1254 skb = dev_alloc_skb(len);
1259 skb_reserve(skb, ieee->tx_headroom);
1261 hdr = (struct rtllib_assoc_request_frame *)
1262 skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
1265 hdr->header.frame_ctl = RTLLIB_STYPE_ASSOC_REQ;
1266 hdr->header.duration_id = cpu_to_le16(37);
1267 memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1268 memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1269 memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1271 memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);
1273 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1274 if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
1275 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1277 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1278 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1280 if (ieee->short_slot &&
1281 (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
1282 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1285 hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
1287 hdr->info_element[0].id = MFIE_TYPE_SSID;
1289 hdr->info_element[0].len = beacon->ssid_len;
1290 tag = skb_put(skb, beacon->ssid_len);
1291 memcpy(tag, beacon->ssid, beacon->ssid_len);
1293 tag = skb_put(skb, rate_len);
1295 if (beacon->rates_len) {
1296 *tag++ = MFIE_TYPE_RATES;
1297 *tag++ = beacon->rates_len;
1298 for (i = 0; i < beacon->rates_len; i++)
1299 *tag++ = beacon->rates[i];
1302 if (beacon->rates_ex_len) {
1303 *tag++ = MFIE_TYPE_RATES_EX;
1304 *tag++ = beacon->rates_ex_len;
1305 for (i = 0; i < beacon->rates_ex_len; i++)
1306 *tag++ = beacon->rates_ex[i];
1309 if (beacon->bCkipSupported) {
1310 static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
1311 u8 CcxAironetBuf[30];
1312 struct octet_string osCcxAironetIE;
1314 memset(CcxAironetBuf, 0, 30);
1315 osCcxAironetIE.Octet = CcxAironetBuf;
1316 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
1317 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1318 sizeof(AironetIeOui));
1320 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1321 (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
1322 tag = skb_put(skb, ckip_ie_len);
1323 *tag++ = MFIE_TYPE_AIRONET;
1324 *tag++ = osCcxAironetIE.Length;
1325 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
1326 tag += osCcxAironetIE.Length;
1329 if (beacon->bCcxRmEnable) {
1330 static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1332 struct octet_string osCcxRmCap;
1334 osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
1335 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
1336 tag = skb_put(skb, ccxrm_ie_len);
1337 *tag++ = MFIE_TYPE_GENERIC;
1338 *tag++ = osCcxRmCap.Length;
1339 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
1340 tag += osCcxRmCap.Length;
1343 if (beacon->BssCcxVerNumber >= 2) {
1344 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1345 struct octet_string osCcxVerNum;
1347 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1348 osCcxVerNum.Octet = CcxVerNumBuf;
1349 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
1350 tag = skb_put(skb, cxvernum_ie_len);
1351 *tag++ = MFIE_TYPE_GENERIC;
1352 *tag++ = osCcxVerNum.Length;
1353 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
1354 tag += osCcxVerNum.Length;
1356 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1357 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
1358 tag = skb_put(skb, ht_cap_len);
1359 *tag++ = MFIE_TYPE_HT_CAP;
1360 *tag++ = ht_cap_len - 2;
1361 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1362 tag += ht_cap_len - 2;
1367 tag = skb_put(skb, ieee->wpa_ie_len);
1368 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1370 if (PMKCacheIdx >= 0) {
1371 tag = skb_put(skb, 18);
1374 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1379 tag = skb_put(skb, wmm_info_len);
1380 rtllib_WMM_Info(ieee, &tag);
1383 if (wps_ie_len && ieee->wps_ie) {
1384 tag = skb_put(skb, wps_ie_len);
1385 memcpy(tag, ieee->wps_ie, wps_ie_len);
1388 tag = skb_put(skb, turbo_info_len);
1390 rtllib_TURBO_Info(ieee, &tag);
1392 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1393 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
1394 tag = skb_put(skb, ht_cap_len);
1395 *tag++ = MFIE_TYPE_GENERIC;
1396 *tag++ = ht_cap_len - 2;
1397 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1398 tag += ht_cap_len - 2;
1401 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1402 tag = skb_put(skb, realtek_ie_len);
1403 *tag++ = MFIE_TYPE_GENERIC;
1404 *tag++ = realtek_ie_len - 2;
1405 memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
1409 kfree(ieee->assocreq_ies);
1410 ieee->assocreq_ies = NULL;
1411 ies = &(hdr->info_element[0].id);
1412 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1413 ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1414 if (ieee->assocreq_ies)
1415 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
1417 netdev_info(ieee->dev,
1418 "%s()Warning: can't alloc memory for assocreq_ies\n",
1420 ieee->assocreq_ies_len = 0;
1425 void rtllib_associate_abort(struct rtllib_device *ieee)
1427 unsigned long flags;
1429 spin_lock_irqsave(&ieee->lock, flags);
1431 ieee->associate_seq++;
1433 /* don't scan, and avoid to have the RX path possibily
1434 * try again to associate. Even do not react to AUTH or
1435 * ASSOC response. Just wait for the retry wq to be scheduled.
1436 * Here we will check if there are good nets to associate
1437 * with, so we retry or just get back to NO_LINK and scanning
1439 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
1440 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1441 ieee->softmac_stats.no_auth_rs++;
1443 RTLLIB_DEBUG_MGMT("Association failed\n");
1444 ieee->softmac_stats.no_ass_rs++;
1447 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1449 queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq,
1450 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
1452 spin_unlock_irqrestore(&ieee->lock, flags);
1455 static void rtllib_associate_abort_cb(unsigned long dev)
1457 rtllib_associate_abort((struct rtllib_device *) dev);
1460 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
1462 struct rtllib_network *beacon = &ieee->current_network;
1463 struct sk_buff *skb;
1465 RTLLIB_DEBUG_MGMT("Stopping scan\n");
1467 ieee->softmac_stats.tx_auth_rq++;
1469 skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
1472 rtllib_associate_abort(ieee);
1474 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
1475 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1476 softmac_mgmt_xmit(skb, ieee);
1477 if (!timer_pending(&ieee->associate_timer)) {
1478 ieee->associate_timer.expires = jiffies + (HZ / 2);
1479 add_timer(&ieee->associate_timer);
1484 static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int chlen)
1487 struct sk_buff *skb;
1488 struct rtllib_network *beacon = &ieee->current_network;
1490 ieee->associate_seq++;
1491 ieee->softmac_stats.tx_auth_rq++;
1493 skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
1496 rtllib_associate_abort(ieee);
1498 c = skb_put(skb, chlen+2);
1499 *(c++) = MFIE_TYPE_CHALLENGE;
1501 memcpy(c, challenge, chlen);
1503 RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");
1505 rtllib_encrypt_fragment(ieee, skb,
1506 sizeof(struct rtllib_hdr_3addr));
1508 softmac_mgmt_xmit(skb, ieee);
1509 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1514 static void rtllib_associate_step2(struct rtllib_device *ieee)
1516 struct sk_buff *skb;
1517 struct rtllib_network *beacon = &ieee->current_network;
1519 del_timer_sync(&ieee->associate_timer);
1521 RTLLIB_DEBUG_MGMT("Sending association request\n");
1523 ieee->softmac_stats.tx_ass_rq++;
1524 skb = rtllib_association_req(beacon, ieee);
1526 rtllib_associate_abort(ieee);
1528 softmac_mgmt_xmit(skb, ieee);
1529 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1534 static void rtllib_associate_complete_wq(void *data)
1536 struct rtllib_device *ieee = (struct rtllib_device *)
1537 container_of_work_rsl(data,
1538 struct rtllib_device,
1539 associate_complete_wq);
1540 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1541 (&(ieee->PowerSaveControl));
1542 netdev_info(ieee->dev, "Associated successfully\n");
1543 if (!ieee->is_silent_reset) {
1544 netdev_info(ieee->dev, "normal associate\n");
1545 notify_wx_assoc_event(ieee);
1548 netif_carrier_on(ieee->dev);
1549 ieee->is_roaming = false;
1550 if (rtllib_is_54g(&ieee->current_network) &&
1551 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1553 netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
1556 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1557 netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
1559 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1560 netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
1563 netdev_info(ieee->dev,
1564 "Successfully associated, ht not enabled(%d, %d)\n",
1565 ieee->pHTInfo->bCurrentHTSupport,
1566 ieee->pHTInfo->bEnableHT);
1567 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1569 ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1570 ieee->current_network.beacon_interval /
1572 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1573 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
1574 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
1575 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
1577 pPSC->LpsIdleCount = 0;
1578 ieee->link_change(ieee->dev);
1580 if (ieee->is_silent_reset) {
1581 netdev_info(ieee->dev, "silent reset associate\n");
1582 ieee->is_silent_reset = false;
1585 if (ieee->data_hard_resume)
1586 ieee->data_hard_resume(ieee->dev);
1590 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1594 static void rtllib_associate_complete(struct rtllib_device *ieee)
1596 del_timer_sync(&ieee->associate_timer);
1598 ieee->state = RTLLIB_LINKED;
1599 rtllib_sta_send_associnfo(ieee);
1601 queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1604 static void rtllib_associate_procedure_wq(void *data)
1606 struct rtllib_device *ieee = container_of_dwork_rsl(data,
1607 struct rtllib_device,
1608 associate_procedure_wq);
1609 rtllib_stop_scan_syncro(ieee);
1610 if (ieee->rtllib_ips_leave != NULL)
1611 ieee->rtllib_ips_leave(ieee->dev);
1612 down(&ieee->wx_sem);
1614 if (ieee->data_hard_stop)
1615 ieee->data_hard_stop(ieee->dev);
1617 rtllib_stop_scan(ieee);
1618 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1619 ieee->current_network.channel);
1620 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1621 if (ieee->eRFPowerState == eRfOff) {
1623 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1625 if (ieee->rtllib_ips_leave_wq != NULL)
1626 ieee->rtllib_ips_leave_wq(ieee->dev);
1630 ieee->associate_seq = 1;
1632 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1637 inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1638 struct rtllib_network *net)
1640 u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
1641 int tmp_ssid_len = 0;
1643 short apset, ssidset, ssidbroad, apmatch, ssidmatch;
1645 /* we are interested in new new only if we are not associated
1646 * and we are not associating / authenticating
1648 if (ieee->state != RTLLIB_NOLINK)
1651 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1652 WLAN_CAPABILITY_ESS))
1655 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1656 WLAN_CAPABILITY_IBSS))
1659 if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1660 (net->channel > ieee->ibss_maxjoin_chal))
1662 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1663 /* if the user specified the AP MAC, we need also the essid
1664 * This could be obtained by beacons or, if the network does not
1665 * broadcast it, it can be put manually.
1667 apset = ieee->wap_set;
1668 ssidset = ieee->ssid_set;
1669 ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
1670 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1673 ssidmatch = (ieee->current_network.ssid_len ==
1674 net->hidden_ssid_len) &&
1675 (!strncmp(ieee->current_network.ssid,
1676 net->hidden_ssid, net->hidden_ssid_len));
1677 if (net->hidden_ssid_len > 0) {
1678 strncpy(net->ssid, net->hidden_ssid,
1679 net->hidden_ssid_len);
1680 net->ssid_len = net->hidden_ssid_len;
1685 (ieee->current_network.ssid_len == net->ssid_len) &&
1686 (!strncmp(ieee->current_network.ssid, net->ssid,
1689 /* if the user set the AP check if match.
1690 * if the network does not broadcast essid we check the
1691 * user supplied ANY essid
1692 * if the network does broadcast and the user does not set
1694 * if the network does broadcast and the user did set essid
1695 * check if essid match
1696 * if the ap is not set, check that the user set the bssid
1697 * and the network does broadcast and that those two bssid match
1699 if ((apset && apmatch &&
1700 ((ssidset && ssidbroad && ssidmatch) ||
1701 (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1702 (!apset && ssidset && ssidbroad && ssidmatch) ||
1703 (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1704 /* if the essid is hidden replace it with the
1705 * essid provided by the user.
1708 strncpy(tmp_ssid, ieee->current_network.ssid,
1710 tmp_ssid_len = ieee->current_network.ssid_len;
1712 memcpy(&ieee->current_network, net,
1713 sizeof(struct rtllib_network));
1715 strncpy(ieee->current_network.ssid, tmp_ssid,
1717 ieee->current_network.ssid_len = tmp_ssid_len;
1719 netdev_info(ieee->dev,
1720 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1721 ieee->current_network.ssid,
1722 ieee->current_network.channel,
1723 ieee->current_network.qos_data.supported,
1724 ieee->pHTInfo->bEnableHT,
1725 ieee->current_network.bssht.bdSupportHT,
1726 ieee->current_network.mode,
1727 ieee->current_network.flags);
1729 if ((rtllib_act_scanning(ieee, false)) &&
1730 !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1731 rtllib_stop_scan_syncro(ieee);
1733 ieee->hwscan_ch_bk = ieee->current_network.channel;
1734 HTResetIOTSetting(ieee->pHTInfo);
1736 if (ieee->iw_mode == IW_MODE_INFRA) {
1737 /* Join the network for the first time */
1738 ieee->AsocRetryCount = 0;
1739 if ((ieee->current_network.qos_data.supported == 1) &&
1740 ieee->current_network.bssht.bdSupportHT)
1741 HTResetSelfAndSavePeerSetting(ieee,
1742 &(ieee->current_network));
1744 ieee->pHTInfo->bCurrentHTSupport =
1747 ieee->state = RTLLIB_ASSOCIATING;
1748 if (ieee->LedControlHandler != NULL)
1749 ieee->LedControlHandler(ieee->dev,
1750 LED_CTL_START_TO_LINK);
1751 queue_delayed_work_rsl(ieee->wq,
1752 &ieee->associate_procedure_wq, 0);
1754 if (rtllib_is_54g(&ieee->current_network) &&
1755 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1757 ieee->SetWirelessMode(ieee->dev, IEEE_G);
1758 netdev_info(ieee->dev, "Using G rates\n");
1761 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1762 netdev_info(ieee->dev, "Using B rates\n");
1764 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1765 ieee->state = RTLLIB_LINKED;
1771 void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1773 unsigned long flags;
1774 struct rtllib_network *target;
1776 spin_lock_irqsave(&ieee->lock, flags);
1778 list_for_each_entry(target, &ieee->network_list, list) {
1780 /* if the state become different that NOLINK means
1781 * we had found what we are searching for
1784 if (ieee->state != RTLLIB_NOLINK)
1787 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1788 ieee->scan_age, jiffies))
1789 rtllib_softmac_new_net(ieee, target);
1791 spin_unlock_irqrestore(&ieee->lock, flags);
1794 static inline u16 auth_parse(struct sk_buff *skb, u8 **challenge, int *chlen)
1796 struct rtllib_authentication *a;
1799 if (skb->len < (sizeof(struct rtllib_authentication) -
1800 sizeof(struct rtllib_info_element))) {
1801 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1805 a = (struct rtllib_authentication *) skb->data;
1806 if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
1807 t = skb->data + sizeof(struct rtllib_authentication);
1809 if (*(t++) == MFIE_TYPE_CHALLENGE) {
1811 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1816 return cpu_to_le16(a->status);
1819 static int auth_rq_parse(struct sk_buff *skb, u8 *dest)
1821 struct rtllib_authentication *a;
1823 if (skb->len < (sizeof(struct rtllib_authentication) -
1824 sizeof(struct rtllib_info_element))) {
1825 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
1829 a = (struct rtllib_authentication *) skb->data;
1831 memcpy(dest, a->header.addr2, ETH_ALEN);
1833 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1834 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1836 return WLAN_STATUS_SUCCESS;
1839 static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1846 struct rtllib_hdr_3addr *header =
1847 (struct rtllib_hdr_3addr *) skb->data;
1850 if (skb->len < sizeof(struct rtllib_hdr_3addr))
1851 return -1; /* corrupted */
1854 (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0) &&
1855 (!is_broadcast_ether_addr(header->addr3));
1859 memcpy(src, header->addr2, ETH_ALEN);
1861 skbend = (u8 *)skb->data + skb->len;
1863 tag = skb->data + sizeof(struct rtllib_hdr_3addr);
1865 while (tag + 1 < skbend) {
1868 ssidlen = *(tag + 1);
1871 tag++; /* point to the len field */
1872 tag = tag + *(tag); /* point to the last data byte of the tag */
1873 tag++; /* point to the next tag */
1880 return 1; /* ssid not found in tagged param */
1882 return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
1885 static int assoc_rq_parse(struct sk_buff *skb, u8 *dest)
1887 struct rtllib_assoc_request_frame *a;
1889 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1890 sizeof(struct rtllib_info_element))) {
1892 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb->len);
1896 a = (struct rtllib_assoc_request_frame *) skb->data;
1898 memcpy(dest, a->header.addr2, ETH_ALEN);
1903 static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1906 struct rtllib_assoc_response_frame *response_head;
1909 if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
1910 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1914 response_head = (struct rtllib_assoc_response_frame *) skb->data;
1915 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1917 status_code = le16_to_cpu(response_head->status);
1918 if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1919 status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
1920 ((ieee->mode == IEEE_G) &&
1921 (ieee->current_network.mode == IEEE_N_24G) &&
1922 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1923 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1925 ieee->AsocRetryCount = 0;
1928 return le16_to_cpu(response_head->status);
1931 void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1935 ieee->softmac_stats.rx_probe_rq++;
1936 if (probe_rq_parse(ieee, skb, dest) > 0) {
1937 ieee->softmac_stats.tx_probe_rs++;
1938 rtllib_resp_to_probe(ieee, dest);
1942 static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1943 struct sk_buff *skb)
1948 ieee->softmac_stats.rx_auth_rq++;
1950 status = auth_rq_parse(skb, dest);
1952 rtllib_resp_to_auth(ieee, status, dest);
1955 static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1956 struct sk_buff *skb)
1961 ieee->softmac_stats.rx_ass_rq++;
1962 if (assoc_rq_parse(skb, dest) != -1)
1963 rtllib_resp_to_assoc_rq(ieee, dest);
1965 netdev_info(ieee->dev, "New client associated: %pM\n", dest);
1968 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1971 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1974 softmac_ps_mgmt_xmit(buf, ieee);
1976 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
1978 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1980 struct sk_buff *buf = rtllib_pspoll_func(ieee);
1983 softmac_ps_mgmt_xmit(buf, ieee);
1986 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
1988 int timeout = ieee->ps_timeout;
1990 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1991 (&(ieee->PowerSaveControl));
1993 if (ieee->LPSDelayCnt) {
1994 ieee->LPSDelayCnt--;
1998 dtim = ieee->current_network.dtim_data;
1999 if (!(dtim & RTLLIB_DTIM_VALID))
2001 timeout = ieee->current_network.beacon_interval;
2002 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
2003 /* there's no need to nofity AP that I find you buffered
2004 * with broadcast packet
2006 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
2009 if (!time_after(jiffies,
2010 ieee->dev->trans_start + msecs_to_jiffies(timeout)))
2012 if (!time_after(jiffies,
2013 ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
2015 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
2016 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
2020 if (ieee->bAwakePktSent) {
2021 pPSC->LPSAwakeIntvl = 1;
2025 if (pPSC->LPSAwakeIntvl == 0)
2026 pPSC->LPSAwakeIntvl = 1;
2027 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2029 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2030 MaxPeriod = ieee->current_network.dtim_period;
2032 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
2033 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2034 MaxPeriod) ? MaxPeriod :
2035 (pPSC->LPSAwakeIntvl + 1);
2038 u8 LPSAwakeIntvl_tmp = 0;
2039 u8 period = ieee->current_network.dtim_period;
2040 u8 count = ieee->current_network.tim.tim_count;
2043 if (pPSC->LPSAwakeIntvl > period)
2044 LPSAwakeIntvl_tmp = period +
2045 (pPSC->LPSAwakeIntvl -
2047 ((pPSC->LPSAwakeIntvl-period) %
2050 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2053 if (pPSC->LPSAwakeIntvl >
2054 ieee->current_network.tim.tim_count)
2055 LPSAwakeIntvl_tmp = count +
2056 (pPSC->LPSAwakeIntvl - count) -
2057 ((pPSC->LPSAwakeIntvl-count)%period);
2059 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2062 *time = ieee->current_network.last_dtim_sta_time
2063 + msecs_to_jiffies(ieee->current_network.beacon_interval *
2073 static inline void rtllib_sta_ps(struct rtllib_device *ieee)
2077 unsigned long flags, flags2;
2079 spin_lock_irqsave(&ieee->lock, flags);
2081 if ((ieee->ps == RTLLIB_PS_DISABLED ||
2082 ieee->iw_mode != IW_MODE_INFRA ||
2083 ieee->state != RTLLIB_LINKED)) {
2085 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2086 __func__, ieee->ps, ieee->iw_mode, ieee->state);
2087 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2088 rtllib_sta_wakeup(ieee, 1);
2090 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2092 sleep = rtllib_sta_ps_sleep(ieee, &time);
2093 /* 2 wake, 1 sleep, 0 do nothing */
2097 if (ieee->sta_sleep == LPS_IS_SLEEP) {
2098 ieee->enter_sleep_state(ieee->dev, time);
2099 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
2100 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2102 if (ieee->ps_is_queue_empty(ieee->dev)) {
2103 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2104 ieee->ack_tx_to_ieee = 1;
2105 rtllib_sta_ps_send_null_frame(ieee, 1);
2106 ieee->ps_time = time;
2108 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2112 ieee->bAwakePktSent = false;
2114 } else if (sleep == 2) {
2115 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2117 rtllib_sta_wakeup(ieee, 1);
2119 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2123 spin_unlock_irqrestore(&ieee->lock, flags);
2127 void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2129 if (ieee->sta_sleep == LPS_IS_WAKE) {
2131 if (ieee->pHTInfo->IOTAction &
2132 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2133 ieee->ack_tx_to_ieee = 1;
2134 rtllib_sta_ps_send_null_frame(ieee, 0);
2136 ieee->ack_tx_to_ieee = 1;
2137 rtllib_sta_ps_send_pspoll_frame(ieee);
2144 if (ieee->sta_sleep == LPS_IS_SLEEP)
2145 ieee->sta_wake_up(ieee->dev);
2147 if (ieee->pHTInfo->IOTAction &
2148 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2149 ieee->ack_tx_to_ieee = 1;
2150 rtllib_sta_ps_send_null_frame(ieee, 0);
2152 ieee->ack_tx_to_ieee = 1;
2153 ieee->polling = true;
2154 rtllib_sta_ps_send_pspoll_frame(ieee);
2158 ieee->sta_sleep = LPS_IS_WAKE;
2159 ieee->polling = false;
2163 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2165 unsigned long flags, flags2;
2167 spin_lock_irqsave(&ieee->lock, flags);
2169 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
2170 /* Null frame with PS bit set */
2172 ieee->sta_sleep = LPS_IS_SLEEP;
2173 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
2175 /* if the card report not success we can't be sure the AP
2176 * has not RXed so we can't assume the AP believe us awake
2178 } else {/* 21112005 - tx again null without PS bit if lost */
2180 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
2181 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2182 if (ieee->pHTInfo->IOTAction &
2183 HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2184 rtllib_sta_ps_send_null_frame(ieee, 0);
2186 rtllib_sta_ps_send_pspoll_frame(ieee);
2187 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2190 spin_unlock_irqrestore(&ieee->lock, flags);
2192 EXPORT_SYMBOL(rtllib_ps_tx_ack);
2194 static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *skb)
2196 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2197 u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
2201 RTLLIB_DEBUG(RTLLIB_DL_ERR,
2202 "error to get payload of action frame\n");
2212 rtllib_rx_ADDBAReq(ieee, skb);
2215 rtllib_rx_ADDBARsp(ieee, skb);
2218 rtllib_rx_DELBA(ieee, skb);
2227 inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2228 struct rtllib_rx_stats *rx_stats)
2233 struct rtllib_assoc_response_frame *assoc_resp;
2234 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2236 RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2237 WLAN_FC_GET_STYPE(header->frame_ctl));
2239 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2240 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2241 (ieee->iw_mode == IW_MODE_INFRA)) {
2242 errcode = assoc_parse(ieee, skb, &aid);
2244 struct rtllib_network *network =
2245 kzalloc(sizeof(struct rtllib_network),
2250 ieee->state = RTLLIB_LINKED;
2251 ieee->assoc_id = aid;
2252 ieee->softmac_stats.rx_ass_ok++;
2253 /* station support qos */
2254 /* Let the register setting default with Legacy station */
2255 assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
2256 if (ieee->current_network.qos_data.supported == 1) {
2257 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2258 rx_stats->len - sizeof(*assoc_resp),
2259 network, rx_stats)) {
2263 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2264 network->bssht.bdHTCapBuf,
2265 network->bssht.bdHTCapLen);
2266 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2267 network->bssht.bdHTInfoBuf,
2268 network->bssht.bdHTInfoLen);
2269 if (ieee->handle_assoc_response != NULL)
2270 ieee->handle_assoc_response(ieee->dev,
2271 (struct rtllib_assoc_response_frame *)header,
2276 kfree(ieee->assocresp_ies);
2277 ieee->assocresp_ies = NULL;
2278 ies = &(assoc_resp->info_element[0].id);
2279 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
2280 ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
2282 if (ieee->assocresp_ies)
2283 memcpy(ieee->assocresp_ies, ies,
2284 ieee->assocresp_ies_len);
2286 netdev_info(ieee->dev,
2287 "%s()Warning: can't alloc memory for assocresp_ies\n",
2289 ieee->assocresp_ies_len = 0;
2291 rtllib_associate_complete(ieee);
2293 /* aid could not been allocated */
2294 ieee->softmac_stats.rx_ass_err++;
2295 netdev_info(ieee->dev,
2296 "Association response status code 0x%x\n",
2299 "Association response status code 0x%x\n",
2301 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
2302 queue_delayed_work_rsl(ieee->wq,
2303 &ieee->associate_procedure_wq, 0);
2305 rtllib_associate_abort(ieee);
2311 static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
2316 bool bSupportNmode = true, bHalfSupportNmode = false;
2318 errcode = auth_parse(skb, &challenge, &chlen);
2321 ieee->softmac_stats.rx_auth_rs_err++;
2322 RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
2325 netdev_info(ieee->dev,
2326 "Authentication respose status code 0x%x", errcode);
2327 rtllib_associate_abort(ieee);
2331 if (ieee->open_wep || !challenge) {
2332 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2333 ieee->softmac_stats.rx_auth_rs_ok++;
2334 if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
2335 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2336 if (IsHTHalfNmodeAPs(ieee)) {
2337 bSupportNmode = true;
2338 bHalfSupportNmode = true;
2340 bSupportNmode = false;
2341 bHalfSupportNmode = false;
2345 /* Dummy wirless mode setting to avoid encryption issue */
2346 if (bSupportNmode) {
2347 ieee->SetWirelessMode(ieee->dev,
2348 ieee->current_network.mode);
2351 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2354 if ((ieee->current_network.mode == IEEE_N_24G) &&
2355 bHalfSupportNmode) {
2356 netdev_info(ieee->dev, "======>enter half N mode\n");
2357 ieee->bHalfWirelessN24GMode = true;
2359 ieee->bHalfWirelessN24GMode = false;
2361 rtllib_associate_step2(ieee);
2363 rtllib_auth_challenge(ieee, challenge, chlen);
2367 inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2368 struct rtllib_rx_stats *rx_stats)
2371 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2372 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2373 (ieee->iw_mode == IW_MODE_INFRA)) {
2374 RTLLIB_DEBUG_MGMT("Received authentication response");
2375 rtllib_rx_auth_resp(ieee, skb);
2376 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2377 rtllib_rx_auth_rq(ieee, skb);
2383 inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2385 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2387 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2390 /* FIXME for now repeat all the association procedure
2391 * both for disassociation and deauthentication
2393 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2394 ieee->state == RTLLIB_LINKED &&
2395 (ieee->iw_mode == IW_MODE_INFRA)) {
2396 netdev_info(ieee->dev,
2397 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
2398 WLAN_FC_GET_STYPE(header->frame_ctl),
2399 ((struct rtllib_disassoc *)skb->data)->reason);
2400 ieee->state = RTLLIB_ASSOCIATING;
2401 ieee->softmac_stats.reassoc++;
2402 ieee->is_roaming = true;
2403 ieee->LinkDetectInfo.bBusyTraffic = false;
2404 rtllib_disassociate(ieee);
2405 RemovePeerTS(ieee, header->addr2);
2406 if (ieee->LedControlHandler != NULL)
2407 ieee->LedControlHandler(ieee->dev,
2408 LED_CTL_START_TO_LINK);
2410 if (!(ieee->rtllib_ap_sec_type(ieee) &
2411 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
2412 queue_delayed_work_rsl(ieee->wq,
2413 &ieee->associate_procedure_wq, 5);
2418 inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2419 struct sk_buff *skb,
2420 struct rtllib_rx_stats *rx_stats, u16 type,
2423 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2425 if (!ieee->proto_started)
2428 switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
2429 case RTLLIB_STYPE_ASSOC_RESP:
2430 case RTLLIB_STYPE_REASSOC_RESP:
2431 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2434 case RTLLIB_STYPE_ASSOC_REQ:
2435 case RTLLIB_STYPE_REASSOC_REQ:
2436 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2437 ieee->iw_mode == IW_MODE_MASTER)
2438 rtllib_rx_assoc_rq(ieee, skb);
2440 case RTLLIB_STYPE_AUTH:
2441 rtllib_rx_auth(ieee, skb, rx_stats);
2443 case RTLLIB_STYPE_DISASSOC:
2444 case RTLLIB_STYPE_DEAUTH:
2445 rtllib_rx_deauth(ieee, skb);
2447 case RTLLIB_STYPE_MANAGE_ACT:
2448 rtllib_process_action(ieee, skb);
2456 /* following are for a simpler TX queue management.
2457 * Instead of using netif_[stop/wake]_queue the driver
2458 * will use these two functions (plus a reset one), that
2459 * will internally use the kernel netif_* and takes
2460 * care of the ieee802.11 fragmentation.
2461 * So the driver receives a fragment per time and might
2462 * call the stop function when it wants to not
2463 * have enough room to TX an entire packet.
2464 * This might be useful if each fragment needs it's own
2465 * descriptor, thus just keep a total free memory > than
2466 * the max fragmentation threshold is not enough.. If the
2467 * ieee802.11 stack passed a TXB struct then you need
2468 * to keep N free descriptors where
2469 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2470 * In this way you need just one and the 802.11 stack
2471 * will take care of buffering fragments and pass them to
2472 * to the driver later, when it wakes the queue.
2474 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2477 unsigned int queue_index = txb->queue_index;
2478 unsigned long flags;
2480 struct cb_desc *tcb_desc = NULL;
2481 unsigned long queue_len = 0;
2483 spin_lock_irqsave(&ieee->lock, flags);
2485 /* called with 2nd parm 0, no tx mgmt lock required */
2486 rtllib_sta_wakeup(ieee, 0);
2488 /* update the tx status */
2489 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2491 if (tcb_desc->bMulticast)
2492 ieee->stats.multicast++;
2494 /* if xmit available, just xmit it immediately, else just insert it to
2497 for (i = 0; i < txb->nr_frags; i++) {
2498 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
2499 if ((queue_len != 0) ||
2500 (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2501 (ieee->queue_stop)) {
2502 /* insert the skb packet to the wait queue
2503 * as for the completion function, it does not need
2504 * to check it any more.
2506 if (queue_len < 200)
2507 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2510 kfree_skb(txb->fragments[i]);
2512 ieee->softmac_data_hard_start_xmit(
2514 ieee->dev, ieee->rate);
2518 rtllib_txb_free(txb);
2520 spin_unlock_irqrestore(&ieee->lock, flags);
2524 /* called with ieee->lock acquired */
2525 static void rtllib_resume_tx(struct rtllib_device *ieee)
2529 for (i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags;
2532 if (ieee->queue_stop) {
2533 ieee->tx_pending.frag = i;
2537 ieee->softmac_data_hard_start_xmit(
2538 ieee->tx_pending.txb->fragments[i],
2539 ieee->dev, ieee->rate);
2540 ieee->stats.tx_packets++;
2543 rtllib_txb_free(ieee->tx_pending.txb);
2544 ieee->tx_pending.txb = NULL;
2548 void rtllib_reset_queue(struct rtllib_device *ieee)
2550 unsigned long flags;
2552 spin_lock_irqsave(&ieee->lock, flags);
2553 init_mgmt_queue(ieee);
2554 if (ieee->tx_pending.txb) {
2555 rtllib_txb_free(ieee->tx_pending.txb);
2556 ieee->tx_pending.txb = NULL;
2558 ieee->queue_stop = 0;
2559 spin_unlock_irqrestore(&ieee->lock, flags);
2562 EXPORT_SYMBOL(rtllib_reset_queue);
2564 void rtllib_wake_queue(struct rtllib_device *ieee)
2567 unsigned long flags;
2568 struct sk_buff *skb;
2569 struct rtllib_hdr_3addr *header;
2571 spin_lock_irqsave(&ieee->lock, flags);
2572 if (!ieee->queue_stop)
2575 ieee->queue_stop = 0;
2577 if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) {
2578 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))) {
2580 header = (struct rtllib_hdr_3addr *) skb->data;
2582 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2584 if (ieee->seq_ctrl[0] == 0xFFF)
2585 ieee->seq_ctrl[0] = 0;
2587 ieee->seq_ctrl[0]++;
2589 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
2593 if (!ieee->queue_stop && ieee->tx_pending.txb)
2594 rtllib_resume_tx(ieee);
2596 if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)) {
2597 ieee->softmac_stats.swtxawake++;
2598 netif_wake_queue(ieee->dev);
2602 spin_unlock_irqrestore(&ieee->lock, flags);
2606 void rtllib_stop_queue(struct rtllib_device *ieee)
2609 if (!netif_queue_stopped(ieee->dev)) {
2610 netif_stop_queue(ieee->dev);
2611 ieee->softmac_stats.swtxstop++;
2613 ieee->queue_stop = 1;
2617 void rtllib_stop_all_queues(struct rtllib_device *ieee)
2621 for (i = 0; i < ieee->dev->num_tx_queues; i++)
2622 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
2624 netif_tx_stop_all_queues(ieee->dev);
2627 void rtllib_wake_all_queues(struct rtllib_device *ieee)
2629 netif_tx_wake_all_queues(ieee->dev);
2632 inline void rtllib_randomize_cell(struct rtllib_device *ieee)
2635 random_ether_addr(ieee->current_network.bssid);
2638 /* called in user context only */
2639 void rtllib_start_master_bss(struct rtllib_device *ieee)
2643 if (ieee->current_network.ssid_len == 0) {
2644 strncpy(ieee->current_network.ssid,
2645 RTLLIB_DEFAULT_TX_ESSID,
2648 ieee->current_network.ssid_len =
2649 strlen(RTLLIB_DEFAULT_TX_ESSID);
2653 memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2655 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2656 ieee->state = RTLLIB_LINKED;
2657 ieee->link_change(ieee->dev);
2658 notify_wx_assoc_event(ieee);
2660 if (ieee->data_hard_resume)
2661 ieee->data_hard_resume(ieee->dev);
2663 netif_carrier_on(ieee->dev);
2666 static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
2668 /* reset hardware status */
2670 if (ieee->data_hard_resume)
2671 ieee->data_hard_resume(ieee->dev);
2673 netif_carrier_on(ieee->dev);
2677 static void rtllib_start_ibss_wq(void *data)
2679 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2680 struct rtllib_device, start_ibss_wq);
2681 /* iwconfig mode ad-hoc will schedule this and return
2682 * on the other hand this will block further iwconfig SET
2683 * operations because of the wx_sem hold.
2684 * Anyway some most set operations set a flag to speed-up
2685 * (abort) this wq (when syncro scanning) before sleeping
2688 if (!ieee->proto_started) {
2689 netdev_info(ieee->dev, "==========oh driver down return\n");
2692 down(&ieee->wx_sem);
2694 if (ieee->current_network.ssid_len == 0) {
2695 strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
2696 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2700 ieee->state = RTLLIB_NOLINK;
2701 ieee->mode = IEEE_G;
2702 /* check if we have this cell in our network list */
2703 rtllib_softmac_check_all_nets(ieee);
2706 /* if not then the state is not linked. Maybe the user switched to
2707 * ad-hoc mode just after being in monitor mode, or just after
2708 * being very few time in managed mode (so the card have had no
2709 * time to scan all the chans..) or we have just run up the iface
2710 * after setting ad-hoc mode. So we have to give another try..
2711 * Here, in ibss mode, should be safe to do this without extra care
2712 * (in bss mode we had to make sure no-one tried to associate when
2713 * we had just checked the ieee->state and we was going to start the
2714 * scan) because in ibss mode the rtllib_new_net function, when
2715 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2716 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2717 * scan, that will stop at the first round because it sees the state
2720 if (ieee->state == RTLLIB_NOLINK)
2721 rtllib_start_scan_syncro(ieee, 0);
2723 /* the network definitively is not here.. create a new cell */
2724 if (ieee->state == RTLLIB_NOLINK) {
2725 netdev_info(ieee->dev, "creating new IBSS cell\n");
2726 ieee->current_network.channel = ieee->IbssStartChnl;
2728 rtllib_randomize_cell(ieee);
2730 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
2732 ieee->current_network.rates_len = 4;
2734 ieee->current_network.rates[0] =
2735 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2736 ieee->current_network.rates[1] =
2737 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2738 ieee->current_network.rates[2] =
2739 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2740 ieee->current_network.rates[3] =
2741 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
2744 ieee->current_network.rates_len = 0;
2746 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
2747 ieee->current_network.rates_ex_len = 8;
2749 ieee->current_network.rates_ex[0] =
2750 RTLLIB_OFDM_RATE_6MB;
2751 ieee->current_network.rates_ex[1] =
2752 RTLLIB_OFDM_RATE_9MB;
2753 ieee->current_network.rates_ex[2] =
2754 RTLLIB_OFDM_RATE_12MB;
2755 ieee->current_network.rates_ex[3] =
2756 RTLLIB_OFDM_RATE_18MB;
2757 ieee->current_network.rates_ex[4] =
2758 RTLLIB_OFDM_RATE_24MB;
2759 ieee->current_network.rates_ex[5] =
2760 RTLLIB_OFDM_RATE_36MB;
2761 ieee->current_network.rates_ex[6] =
2762 RTLLIB_OFDM_RATE_48MB;
2763 ieee->current_network.rates_ex[7] =
2764 RTLLIB_OFDM_RATE_54MB;
2768 ieee->current_network.rates_ex_len = 0;
2772 ieee->current_network.qos_data.supported = 0;
2773 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2774 ieee->current_network.mode = ieee->mode;
2775 ieee->current_network.atim_window = 0;
2776 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2779 netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
2780 if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2781 HTUseDefaultSetting(ieee);
2783 ieee->pHTInfo->bCurrentHTSupport = false;
2785 ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
2786 (u8 *)(&ieee->state));
2788 ieee->state = RTLLIB_LINKED;
2789 ieee->link_change(ieee->dev);
2791 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2792 if (ieee->LedControlHandler != NULL)
2793 ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
2795 rtllib_start_send_beacons(ieee);
2797 notify_wx_assoc_event(ieee);
2799 if (ieee->data_hard_resume)
2800 ieee->data_hard_resume(ieee->dev);
2802 netif_carrier_on(ieee->dev);
2807 inline void rtllib_start_ibss(struct rtllib_device *ieee)
2809 queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq,
2810 msecs_to_jiffies(150));
2813 /* this is called only in user context, with wx_sem held */
2814 void rtllib_start_bss(struct rtllib_device *ieee)
2816 unsigned long flags;
2818 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2819 if (!ieee->bGlobalDomain)
2822 /* check if we have already found the net we
2823 * are interested in (if any).
2824 * if not (we are disassociated and we are not
2825 * in associating / authenticating phase) start the background scanning.
2827 rtllib_softmac_check_all_nets(ieee);
2829 /* ensure no-one start an associating process (thus setting
2830 * the ieee->state to rtllib_ASSOCIATING) while we
2831 * have just checked it and we are going to enable scan.
2832 * The rtllib_new_net function is always called with
2833 * lock held (from both rtllib_softmac_check_all_nets and
2834 * the rx path), so we cannot be in the middle of such function
2836 spin_lock_irqsave(&ieee->lock, flags);
2838 if (ieee->state == RTLLIB_NOLINK)
2839 rtllib_start_scan(ieee);
2840 spin_unlock_irqrestore(&ieee->lock, flags);
2843 static void rtllib_link_change_wq(void *data)
2845 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2846 struct rtllib_device, link_change_wq);
2847 ieee->link_change(ieee->dev);
2849 /* called only in userspace context */
2850 void rtllib_disassociate(struct rtllib_device *ieee)
2852 netif_carrier_off(ieee->dev);
2853 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2854 rtllib_reset_queue(ieee);
2856 if (ieee->data_hard_stop)
2857 ieee->data_hard_stop(ieee->dev);
2858 if (IS_DOT11D_ENABLE(ieee))
2860 ieee->state = RTLLIB_NOLINK;
2861 ieee->is_set_key = false;
2864 queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);
2866 notify_wx_assoc_event(ieee);
2869 static void rtllib_associate_retry_wq(void *data)
2871 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2872 struct rtllib_device, associate_retry_wq);
2873 unsigned long flags;
2875 down(&ieee->wx_sem);
2876 if (!ieee->proto_started)
2879 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2882 /* until we do not set the state to RTLLIB_NOLINK
2883 * there are no possibility to have someone else trying
2884 * to start an association procedure (we get here with
2885 * ieee->state = RTLLIB_ASSOCIATING).
2886 * When we set the state to RTLLIB_NOLINK it is possible
2887 * that the RX path run an attempt to associate, but
2888 * both rtllib_softmac_check_all_nets and the
2889 * RX path works with ieee->lock held so there are no
2890 * problems. If we are still disassociated then start a scan.
2891 * the lock here is necessary to ensure no one try to start
2892 * an association procedure when we have just checked the
2893 * state and we are going to start the scan.
2895 ieee->beinretry = true;
2896 ieee->state = RTLLIB_NOLINK;
2898 rtllib_softmac_check_all_nets(ieee);
2900 spin_lock_irqsave(&ieee->lock, flags);
2902 if (ieee->state == RTLLIB_NOLINK)
2903 rtllib_start_scan(ieee);
2904 spin_unlock_irqrestore(&ieee->lock, flags);
2906 ieee->beinretry = false;
2911 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2913 u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2915 struct sk_buff *skb;
2916 struct rtllib_probe_response *b;
2918 skb = rtllib_probe_resp(ieee, broadcast_addr);
2923 b = (struct rtllib_probe_response *) skb->data;
2924 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2930 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2932 struct sk_buff *skb;
2933 struct rtllib_probe_response *b;
2935 skb = rtllib_get_beacon_(ieee);
2939 b = (struct rtllib_probe_response *) skb->data;
2940 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2942 if (ieee->seq_ctrl[0] == 0xFFF)
2943 ieee->seq_ctrl[0] = 0;
2945 ieee->seq_ctrl[0]++;
2949 EXPORT_SYMBOL(rtllib_get_beacon);
2951 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2954 rtllib_stop_scan_syncro(ieee);
2955 down(&ieee->wx_sem);
2956 rtllib_stop_protocol(ieee, shutdown);
2959 EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
2962 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2964 if (!ieee->proto_started)
2968 ieee->proto_started = 0;
2969 ieee->proto_stoppping = 1;
2970 if (ieee->rtllib_ips_leave != NULL)
2971 ieee->rtllib_ips_leave(ieee->dev);
2974 rtllib_stop_send_beacons(ieee);
2975 del_timer_sync(&ieee->associate_timer);
2976 cancel_delayed_work(&ieee->associate_retry_wq);
2977 cancel_delayed_work(&ieee->start_ibss_wq);
2978 cancel_delayed_work(&ieee->link_change_wq);
2979 rtllib_stop_scan(ieee);
2981 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2982 ieee->state = RTLLIB_NOLINK;
2984 if (ieee->state == RTLLIB_LINKED) {
2985 if (ieee->iw_mode == IW_MODE_INFRA)
2986 SendDisassociation(ieee, 1, deauth_lv_ss);
2987 rtllib_disassociate(ieee);
2992 ieee->proto_stoppping = 0;
2994 kfree(ieee->assocreq_ies);
2995 ieee->assocreq_ies = NULL;
2996 ieee->assocreq_ies_len = 0;
2997 kfree(ieee->assocresp_ies);
2998 ieee->assocresp_ies = NULL;
2999 ieee->assocresp_ies_len = 0;
3002 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
3004 down(&ieee->wx_sem);
3005 rtllib_start_protocol(ieee);
3008 EXPORT_SYMBOL(rtllib_softmac_start_protocol);
3010 void rtllib_start_protocol(struct rtllib_device *ieee)
3015 rtllib_update_active_chan_map(ieee);
3017 if (ieee->proto_started)
3020 ieee->proto_started = 1;
3022 if (ieee->current_network.channel == 0) {
3025 if (ch > MAX_CHANNEL_NUMBER)
3026 return; /* no channel found */
3027 } while (!ieee->active_channel_map[ch]);
3028 ieee->current_network.channel = ch;
3031 if (ieee->current_network.beacon_interval == 0)
3032 ieee->current_network.beacon_interval = 100;
3034 for (i = 0; i < 17; i++) {
3035 ieee->last_rxseq_num[i] = -1;
3036 ieee->last_rxfrag_num[i] = -1;
3037 ieee->last_packet_time[i] = 0;
3040 if (ieee->UpdateBeaconInterruptHandler)
3041 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
3044 /* if the user set the MAC of the ad-hoc cell and then
3045 * switch to managed mode, shall we make sure that association
3046 * attempts does not fail just because the user provide the essid
3047 * and the nic is still checking for the AP MAC ??
3049 if (ieee->iw_mode == IW_MODE_INFRA) {
3050 rtllib_start_bss(ieee);
3051 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
3052 if (ieee->UpdateBeaconInterruptHandler)
3053 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
3055 rtllib_start_ibss(ieee);
3057 } else if (ieee->iw_mode == IW_MODE_MASTER) {
3058 rtllib_start_master_bss(ieee);
3059 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
3060 rtllib_start_monitor_mode(ieee);
3064 void rtllib_softmac_init(struct rtllib_device *ieee)
3068 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
3070 ieee->state = RTLLIB_NOLINK;
3071 for (i = 0; i < 5; i++)
3072 ieee->seq_ctrl[i] = 0;
3073 ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
3074 if (!ieee->pDot11dInfo)
3075 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
3076 ieee->LinkDetectInfo.SlotIndex = 0;
3077 ieee->LinkDetectInfo.SlotNum = 2;
3078 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3079 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
3080 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3081 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3082 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
3083 ieee->bIsAggregateFrame = false;
3085 ieee->queue_stop = 0;
3086 ieee->scanning_continue = 0;
3087 ieee->softmac_features = 0;
3090 ieee->proto_started = 0;
3091 ieee->proto_stoppping = 0;
3092 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3094 ieee->ps = RTLLIB_PS_DISABLED;
3095 ieee->sta_sleep = LPS_IS_WAKE;
3097 ieee->Regdot11HTOperationalRateSet[0] = 0xff;
3098 ieee->Regdot11HTOperationalRateSet[1] = 0xff;
3099 ieee->Regdot11HTOperationalRateSet[4] = 0x01;
3101 ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
3102 ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
3103 ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
3105 ieee->FirstIe_InScan = false;
3106 ieee->actscanning = false;
3107 ieee->beinretry = false;
3108 ieee->is_set_key = false;
3109 init_mgmt_queue(ieee);
3111 ieee->sta_edca_param[0] = 0x0000A403;
3112 ieee->sta_edca_param[1] = 0x0000A427;
3113 ieee->sta_edca_param[2] = 0x005E4342;
3114 ieee->sta_edca_param[3] = 0x002F3262;
3115 ieee->aggregation = true;
3116 ieee->enable_rx_imm_BA = true;
3117 ieee->tx_pending.txb = NULL;
3119 _setup_timer(&ieee->associate_timer,
3120 rtllib_associate_abort_cb,
3121 (unsigned long) ieee);
3123 _setup_timer(&ieee->beacon_timer,
3124 rtllib_send_beacon_cb,
3125 (unsigned long) ieee);
3128 ieee->wq = create_workqueue(DRV_NAME);
3130 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3131 (void *)rtllib_link_change_wq, ieee);
3132 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3133 (void *)rtllib_start_ibss_wq, ieee);
3134 INIT_WORK_RSL(&ieee->associate_complete_wq,
3135 (void *)rtllib_associate_complete_wq, ieee);
3136 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3137 (void *)rtllib_associate_procedure_wq, ieee);
3138 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3139 (void *)rtllib_softmac_scan_wq, ieee);
3140 INIT_DELAYED_WORK_RSL(&ieee->softmac_hint11d_wq,
3141 (void *)rtllib_softmac_hint11d_wq, ieee);
3142 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3143 (void *)rtllib_associate_retry_wq, ieee);
3144 INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3147 sema_init(&ieee->wx_sem, 1);
3148 sema_init(&ieee->scan_sem, 1);
3149 sema_init(&ieee->ips_sem, 1);
3151 spin_lock_init(&ieee->mgmt_tx_lock);
3152 spin_lock_init(&ieee->beacon_lock);
3154 tasklet_init(&ieee->ps_task,
3155 (void(*)(unsigned long)) rtllib_sta_ps,
3156 (unsigned long)ieee);
3160 void rtllib_softmac_free(struct rtllib_device *ieee)
3162 down(&ieee->wx_sem);
3163 kfree(ieee->pDot11dInfo);
3164 ieee->pDot11dInfo = NULL;
3165 del_timer_sync(&ieee->associate_timer);
3167 cancel_delayed_work(&ieee->associate_retry_wq);
3168 destroy_workqueue(ieee->wq);
3170 tasklet_kill(&ieee->ps_task);
3173 /********************************************************
3174 * Start of WPA code. *
3175 * this is stolen from the ipw2200 driver *
3176 ********************************************************/
3179 static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3181 /* This is called when wpa_supplicant loads and closes the driver
3184 netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
3185 ieee->wpa_enabled = value;
3186 memset(ieee->ap_mac_addr, 0, 6);
3191 static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
3194 /* make sure WPA is enabled */
3195 rtllib_wpa_enable(ieee, 1);
3197 rtllib_disassociate(ieee);
3201 static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3207 case IEEE_MLME_STA_DEAUTH:
3210 case IEEE_MLME_STA_DISASSOC:
3211 rtllib_disassociate(ieee);
3215 netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
3223 static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3224 struct ieee_param *param, int plen)
3228 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3229 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3232 if (param->u.wpa_ie.len) {
3233 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
3238 kfree(ieee->wpa_ie);
3240 ieee->wpa_ie_len = param->u.wpa_ie.len;
3242 kfree(ieee->wpa_ie);
3243 ieee->wpa_ie = NULL;
3244 ieee->wpa_ie_len = 0;
3247 rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3251 #define AUTH_ALG_OPEN_SYSTEM 0x1
3252 #define AUTH_ALG_SHARED_KEY 0x2
3253 #define AUTH_ALG_LEAP 0x4
3254 static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3257 struct rtllib_security sec = {
3258 .flags = SEC_AUTH_MODE,
3261 if (value & AUTH_ALG_SHARED_KEY) {
3262 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3264 ieee->auth_mode = 1;
3265 } else if (value & AUTH_ALG_OPEN_SYSTEM) {
3266 sec.auth_mode = WLAN_AUTH_OPEN;
3268 ieee->auth_mode = 0;
3269 } else if (value & AUTH_ALG_LEAP) {
3270 sec.auth_mode = WLAN_AUTH_LEAP >> 6;
3272 ieee->auth_mode = 2;
3276 if (ieee->set_security)
3277 ieee->set_security(ieee->dev, &sec);
3282 static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3285 unsigned long flags;
3288 case IEEE_PARAM_WPA_ENABLED:
3289 ret = rtllib_wpa_enable(ieee, value);
3292 case IEEE_PARAM_TKIP_COUNTERMEASURES:
3293 ieee->tkip_countermeasures = value;
3296 case IEEE_PARAM_DROP_UNENCRYPTED:
3300 * wpa_supplicant calls set_wpa_enabled when the driver
3301 * is loaded and unloaded, regardless of if WPA is being
3302 * used. No other calls are made which can be used to
3303 * determine if encryption will be used or not prior to
3304 * association being expected. If encryption is not being
3305 * used, drop_unencrypted is set to false, else true -- we
3306 * can use this to determine if the CAP_PRIVACY_ON bit should
3309 struct rtllib_security sec = {
3310 .flags = SEC_ENABLED,
3313 ieee->drop_unencrypted = value;
3314 /* We only change SEC_LEVEL for open mode. Others
3315 * are set by ipw_wpa_set_encryption.
3318 sec.flags |= SEC_LEVEL;
3319 sec.level = SEC_LEVEL_0;
3321 sec.flags |= SEC_LEVEL;
3322 sec.level = SEC_LEVEL_1;
3324 if (ieee->set_security)
3325 ieee->set_security(ieee->dev, &sec);
3329 case IEEE_PARAM_PRIVACY_INVOKED:
3330 ieee->privacy_invoked = value;
3333 case IEEE_PARAM_AUTH_ALGS:
3334 ret = rtllib_wpa_set_auth_algs(ieee, value);
3337 case IEEE_PARAM_IEEE_802_1X:
3338 ieee->ieee802_1x = value;
3340 case IEEE_PARAM_WPAX_SELECT:
3341 spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
3342 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
3346 netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
3353 /* implementation borrowed from hostap driver */
3354 static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
3355 struct ieee_param *param, int param_len,
3359 struct lib80211_crypto_ops *ops;
3360 struct lib80211_crypt_data **crypt;
3362 struct rtllib_security sec = {
3366 param->u.crypt.err = 0;
3367 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3370 (int) ((char *) param->u.crypt.key - (char *) param) +
3371 param->u.crypt.key_len) {
3372 netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
3373 param->u.crypt.key_len);
3376 if (is_broadcast_ether_addr(param->sta_addr)) {
3377 if (param->u.crypt.idx >= NUM_WEP_KEYS)
3379 crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
3384 if (strcmp(param->u.crypt.alg, "none") == 0) {
3387 sec.level = SEC_LEVEL_0;
3388 sec.flags |= SEC_ENABLED | SEC_LEVEL;
3389 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3394 sec.flags |= SEC_ENABLED;
3396 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3397 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3398 strcmp(param->u.crypt.alg, "R-TKIP"))
3399 goto skip_host_crypt;
3401 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3402 if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3403 request_module("rtllib_crypt_wep");
3404 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3405 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3406 request_module("rtllib_crypt_tkip");
3407 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3408 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3409 request_module("rtllib_crypt_ccmp");
3410 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3413 netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
3414 param->u.crypt.alg);
3415 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3419 if (*crypt == NULL || (*crypt)->ops != ops) {
3420 struct lib80211_crypt_data *new_crypt;
3422 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3424 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
3425 if (new_crypt == NULL) {
3429 new_crypt->ops = ops;
3432 new_crypt->ops->init(param->u.crypt.idx);
3434 if (new_crypt->priv == NULL) {
3436 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3444 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3445 (*crypt)->ops->set_key(param->u.crypt.key,
3446 param->u.crypt.key_len, param->u.crypt.seq,
3447 (*crypt)->priv) < 0) {
3448 netdev_info(ieee->dev, "key setting failed\n");
3449 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3455 if (param->u.crypt.set_tx) {
3456 ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
3457 sec.active_key = param->u.crypt.idx;
3458 sec.flags |= SEC_ACTIVE_KEY;
3460 sec.flags &= ~SEC_ACTIVE_KEY;
3462 if (param->u.crypt.alg != NULL) {
3463 memcpy(sec.keys[param->u.crypt.idx],
3465 param->u.crypt.key_len);
3466 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3467 sec.flags |= (1 << param->u.crypt.idx);
3469 if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3470 sec.flags |= SEC_LEVEL;
3471 sec.level = SEC_LEVEL_1;
3472 } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3473 sec.flags |= SEC_LEVEL;
3474 sec.level = SEC_LEVEL_2;
3475 } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3476 sec.flags |= SEC_LEVEL;
3477 sec.level = SEC_LEVEL_3;
3481 if (ieee->set_security)
3482 ieee->set_security(ieee->dev, &sec);
3484 /* Do not reset port if card is in Managed mode since resetting will
3485 * generate new IEEE 802.11 authentication which may end up in looping
3486 * with IEEE 802.1X. If your hardware requires a reset after WEP
3487 * configuration (for example... Prism2), implement the reset_port in
3488 * the callbacks structures used to initialize the 802.11 stack.
3490 if (ieee->reset_on_keychange &&
3491 ieee->iw_mode != IW_MODE_INFRA &&
3493 ieee->reset_port(ieee->dev)) {
3494 netdev_info(ieee->dev, "reset_port failed\n");
3495 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3502 inline struct sk_buff *rtllib_disauth_skb(struct rtllib_network *beacon,
3503 struct rtllib_device *ieee, u16 asRsn)
3505 struct sk_buff *skb;
3506 struct rtllib_disauth *disauth;
3507 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3509 skb = dev_alloc_skb(len);
3513 skb_reserve(skb, ieee->tx_headroom);
3515 disauth = (struct rtllib_disauth *) skb_put(skb,
3516 sizeof(struct rtllib_disauth));
3517 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3518 disauth->header.duration_id = 0;
3520 memcpy(disauth->header.addr1, beacon->bssid, ETH_ALEN);
3521 memcpy(disauth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3522 memcpy(disauth->header.addr3, beacon->bssid, ETH_ALEN);
3524 disauth->reason = cpu_to_le16(asRsn);
3528 inline struct sk_buff *rtllib_disassociate_skb(struct rtllib_network *beacon,
3529 struct rtllib_device *ieee, u16 asRsn)
3531 struct sk_buff *skb;
3532 struct rtllib_disassoc *disass;
3533 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3535 skb = dev_alloc_skb(len);
3540 skb_reserve(skb, ieee->tx_headroom);
3542 disass = (struct rtllib_disassoc *) skb_put(skb,
3543 sizeof(struct rtllib_disassoc));
3544 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3545 disass->header.duration_id = 0;
3547 memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
3548 memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3549 memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
3551 disass->reason = cpu_to_le16(asRsn);
3555 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3557 struct rtllib_network *beacon = &ieee->current_network;
3558 struct sk_buff *skb;
3561 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3563 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
3566 softmac_mgmt_xmit(skb, ieee);
3569 u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3571 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
3572 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
3573 int wpa_ie_len = ieee->wpa_ie_len;
3574 struct lib80211_crypt_data *crypt;
3577 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
3578 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3579 || (ieee->host_encrypt && crypt && crypt->ops &&
3580 (0 == strcmp(crypt->ops->name, "R-WEP")));
3583 if (encrypt && (wpa_ie_len == 0)) {
3585 } else if ((wpa_ie_len != 0)) {
3586 if (((ieee->wpa_ie[0] == 0xdd) &&
3587 (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3588 ((ieee->wpa_ie[0] == 0x30) &&
3589 (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
3590 return SEC_ALG_CCMP;
3592 return SEC_ALG_TKIP;
3594 return SEC_ALG_NONE;
3598 int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
3601 struct ieee_param *param;
3604 down(&ieee->wx_sem);
3606 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3611 param = memdup_user(p->pointer, p->length);
3612 if (IS_ERR(param)) {
3613 ret = PTR_ERR(param);
3617 switch (param->cmd) {
3618 case IEEE_CMD_SET_WPA_PARAM:
3619 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3620 param->u.wpa_param.value);
3623 case IEEE_CMD_SET_WPA_IE:
3624 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3627 case IEEE_CMD_SET_ENCRYPTION:
3628 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3632 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3633 param->u.mlme.reason_code);
3637 netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
3643 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3652 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
3654 static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
3658 bool bFilterOutNonAssociatedBSSID = false;
3660 rtllib->state = RTLLIB_NOLINK;
3662 for (i = 0; i < 6; i++)
3663 rtllib->current_network.bssid[i] = 0x55;
3665 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3666 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3667 rtllib->current_network.bssid);
3668 OpMode = RT_OP_MODE_NO_LINK;
3669 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3670 rtllib_stop_send_beacons(rtllib);
3672 bFilterOutNonAssociatedBSSID = false;
3673 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3674 (u8 *)(&bFilterOutNonAssociatedBSSID));
3675 notify_wx_assoc_event(rtllib);
3679 static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib, u8 *asSta,
3685 RemovePeerTS(rtllib, asSta);
3687 if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
3688 rtllib->state = RTLLIB_NOLINK;
3690 for (i = 0; i < 6; i++)
3691 rtllib->current_network.bssid[i] = 0x22;
3692 OpMode = RT_OP_MODE_NO_LINK;
3693 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3694 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3696 rtllib_disassociate(rtllib);
3698 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3699 rtllib->current_network.bssid);
3706 rtllib_MgntDisconnectAP(
3707 struct rtllib_device *rtllib,
3711 bool bFilterOutNonAssociatedBSSID = false;
3713 bFilterOutNonAssociatedBSSID = false;
3714 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3715 (u8 *)(&bFilterOutNonAssociatedBSSID));
3716 rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3719 rtllib->state = RTLLIB_NOLINK;
3722 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
3724 if (rtllib->ps != RTLLIB_PS_DISABLED)
3725 rtllib->sta_wake_up(rtllib->dev);
3727 if (rtllib->state == RTLLIB_LINKED) {
3728 if (rtllib->iw_mode == IW_MODE_ADHOC)
3729 rtllib_MgntDisconnectIBSS(rtllib);
3730 if (rtllib->iw_mode == IW_MODE_INFRA)
3731 rtllib_MgntDisconnectAP(rtllib, asRsn);
3737 EXPORT_SYMBOL(rtllib_MgntDisconnect);
3739 void notify_wx_assoc_event(struct rtllib_device *ieee)
3741 union iwreq_data wrqu;
3743 if (ieee->cannot_notify)
3746 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3747 if (ieee->state == RTLLIB_LINKED)
3748 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3752 netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
3754 eth_zero_addr(wrqu.ap_addr.sa_data);
3756 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3758 EXPORT_SYMBOL(notify_wx_assoc_event);