This source file includes following definitions.
- rtllib_is_54g
- rtllib_MFIE_rate_len
- rtllib_MFIE_Brate
- rtllib_MFIE_Grate
- rtllib_WMM_Info
- rtllib_TURBO_Info
- enqueue_mgmt
- init_mgmt_queue
- MgntQuery_TxRateExcludeCCKRates
- MgntQuery_MgntFrameTxRate
- softmac_mgmt_xmit
- softmac_ps_mgmt_xmit
- rtllib_probe_req
- rtllib_send_beacon
- rtllib_send_beacon_cb
- rtllib_EnableNetMonitorMode
- rtllib_DisableNetMonitorMode
- rtllib_EnableIntelPromiscuousMode
- rtllib_DisableIntelPromiscuousMode
- rtllib_send_probe
- rtllib_send_probe_requests
- rtllib_update_active_chan_map
- rtllib_softmac_scan_syncro
- rtllib_softmac_scan_wq
- rtllib_beacons_start
- rtllib_beacons_stop
- rtllib_stop_send_beacons
- rtllib_start_send_beacons
- rtllib_softmac_stop_scan
- rtllib_stop_scan
- rtllib_stop_scan_syncro
- rtllib_act_scanning
- rtllib_start_scan
- rtllib_start_scan_syncro
- rtllib_authentication_req
- rtllib_probe_resp
- rtllib_assoc_resp
- rtllib_auth_resp
- rtllib_null_func
- rtllib_pspoll_func
- rtllib_resp_to_assoc_rq
- rtllib_resp_to_auth
- rtllib_resp_to_probe
- SecIsInPMKIDList
- rtllib_association_req
- rtllib_associate_abort
- rtllib_associate_abort_cb
- rtllib_associate_step1
- rtllib_auth_challenge
- rtllib_associate_step2
- rtllib_associate_complete_wq
- rtllib_sta_send_associnfo
- rtllib_associate_complete
- rtllib_associate_procedure_wq
- rtllib_softmac_new_net
- rtllib_softmac_check_all_nets
- auth_parse
- auth_rq_parse
- probe_rq_parse
- assoc_rq_parse
- assoc_parse
- rtllib_rx_probe_rq
- rtllib_rx_auth_rq
- rtllib_rx_assoc_rq
- rtllib_sta_ps_send_null_frame
- rtllib_sta_ps_send_pspoll_frame
- rtllib_sta_ps_sleep
- rtllib_sta_ps
- rtllib_sta_wakeup
- rtllib_ps_tx_ack
- rtllib_process_action
- rtllib_rx_assoc_resp
- rtllib_rx_auth_resp
- rtllib_rx_auth
- rtllib_rx_deauth
- rtllib_rx_frame_softmac
- rtllib_softmac_xmit
- rtllib_reset_queue
- rtllib_stop_all_queues
- rtllib_wake_all_queues
- rtllib_start_master_bss
- rtllib_start_monitor_mode
- rtllib_start_ibss_wq
- rtllib_start_ibss
- rtllib_start_bss
- rtllib_link_change_wq
- rtllib_disassociate
- rtllib_associate_retry_wq
- rtllib_get_beacon_
- rtllib_get_beacon
- rtllib_softmac_stop_protocol
- rtllib_stop_protocol
- rtllib_softmac_start_protocol
- rtllib_start_protocol
- rtllib_softmac_init
- rtllib_softmac_free
- rtllib_disauth_skb
- rtllib_disassociate_skb
- SendDisassociation
- rtllib_ap_sec_type
- rtllib_MgntDisconnectIBSS
- rtllib_MlmeDisassociateRequest
- rtllib_MgntDisconnectAP
- rtllib_MgntDisconnect
- notify_wx_assoc_event
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14 #include "rtllib.h"
15
16 #include <linux/random.h>
17 #include <linux/delay.h>
18 #include <linux/uaccess.h>
19 #include <linux/etherdevice.h>
20 #include <linux/ieee80211.h>
21 #include "dot11d.h"
22
23 static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
24
25
26 static short rtllib_is_54g(struct rtllib_network *net)
27 {
28 return (net->rates_ex_len > 0) || (net->rates_len > 4);
29 }
30
31
32
33
34
35 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
36 {
37 unsigned int rate_len = 0;
38
39 if (ieee->modulation & RTLLIB_CCK_MODULATION)
40 rate_len = RTLLIB_CCK_RATE_LEN + 2;
41
42 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
43
44 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
45
46 return rate_len;
47 }
48
49
50
51
52
53 static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
54 {
55 u8 *tag = *tag_p;
56
57 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
58 *tag++ = MFIE_TYPE_RATES;
59 *tag++ = 4;
60 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
61 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
62 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
63 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
64 }
65
66
67
68
69 *tag_p = tag;
70 }
71
72 static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
73 {
74 u8 *tag = *tag_p;
75
76 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
77 *tag++ = MFIE_TYPE_RATES_EX;
78 *tag++ = 8;
79 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
80 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
81 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
82 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
83 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
84 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
85 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
86 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
87 }
88
89
90
91 *tag_p = tag;
92 }
93
94 static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
95 {
96 u8 *tag = *tag_p;
97
98 *tag++ = MFIE_TYPE_GENERIC;
99 *tag++ = 7;
100 *tag++ = 0x00;
101 *tag++ = 0x50;
102 *tag++ = 0xf2;
103 *tag++ = 0x02;
104 *tag++ = 0x00;
105 *tag++ = 0x01;
106 *tag++ = MAX_SP_Len;
107 *tag_p = tag;
108 }
109
110 static void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
111 {
112 u8 *tag = *tag_p;
113
114 *tag++ = MFIE_TYPE_GENERIC;
115 *tag++ = 7;
116 *tag++ = 0x00;
117 *tag++ = 0xe0;
118 *tag++ = 0x4c;
119 *tag++ = 0x01;
120 *tag++ = 0x02;
121 *tag++ = 0x11;
122 *tag++ = 0x00;
123
124 *tag_p = tag;
125 netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
126 }
127
128 static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
129 {
130 int nh;
131
132 nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
133
134
135
136
137
138
139
140 ieee->mgmt_queue_head = nh;
141 ieee->mgmt_queue_ring[nh] = skb;
142
143 }
144
145 static void init_mgmt_queue(struct rtllib_device *ieee)
146 {
147 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
148 }
149
150
151 u8
152 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
153 {
154 u16 i;
155 u8 QueryRate = 0;
156 u8 BasicRate;
157
158
159 for (i = 0; i < ieee->current_network.rates_len; i++) {
160 BasicRate = ieee->current_network.rates[i]&0x7F;
161 if (!rtllib_is_cck_rate(BasicRate)) {
162 if (QueryRate == 0) {
163 QueryRate = BasicRate;
164 } else {
165 if (BasicRate < QueryRate)
166 QueryRate = BasicRate;
167 }
168 }
169 }
170
171 if (QueryRate == 0) {
172 QueryRate = 12;
173 netdev_info(ieee->dev, "No BasicRate found!!\n");
174 }
175 return QueryRate;
176 }
177
178 static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
179 {
180 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
181 u8 rate;
182
183 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
184 rate = 0x0c;
185 else
186 rate = ieee->basic_rate & 0x7f;
187
188 if (rate == 0) {
189 if (ieee->mode == IEEE_A ||
190 ieee->mode == IEEE_N_5G ||
191 (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
192 rate = 0x0c;
193 else
194 rate = 0x02;
195 }
196
197 return rate;
198 }
199
200 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
201 {
202 unsigned long flags;
203 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
204 struct rtllib_hdr_3addr *header =
205 (struct rtllib_hdr_3addr *) skb->data;
206
207 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
208
209 spin_lock_irqsave(&ieee->lock, flags);
210
211
212 rtllib_sta_wakeup(ieee, 0);
213
214 if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
215 tcb_desc->queue_index = BEACON_QUEUE;
216 else
217 tcb_desc->queue_index = MGNT_QUEUE;
218
219 if (ieee->disable_mgnt_queue)
220 tcb_desc->queue_index = HIGH_QUEUE;
221
222 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
223 tcb_desc->RATRIndex = 7;
224 tcb_desc->bTxDisableRateFallBack = 1;
225 tcb_desc->bTxUseDriverAssingedRate = 1;
226 if (single) {
227 if (ieee->queue_stop) {
228 enqueue_mgmt(ieee, skb);
229 } else {
230 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
231
232 if (ieee->seq_ctrl[0] == 0xFFF)
233 ieee->seq_ctrl[0] = 0;
234 else
235 ieee->seq_ctrl[0]++;
236
237
238 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
239 ieee->basic_rate);
240 }
241
242 spin_unlock_irqrestore(&ieee->lock, flags);
243 } else {
244 spin_unlock_irqrestore(&ieee->lock, flags);
245 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
246
247 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
248
249 if (ieee->seq_ctrl[0] == 0xFFF)
250 ieee->seq_ctrl[0] = 0;
251 else
252 ieee->seq_ctrl[0]++;
253
254
255 if (!ieee->check_nic_enough_desc(ieee->dev,
256 tcb_desc->queue_index) ||
257 skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) ||
258 ieee->queue_stop) {
259
260
261
262
263
264 netdev_info(ieee->dev,
265 "%s():insert to waitqueue, queue_index:%d!\n",
266 __func__, tcb_desc->queue_index);
267 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
268 skb);
269 } else {
270 ieee->softmac_hard_start_xmit(skb, ieee->dev);
271 }
272 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
273 }
274 }
275
276 static inline void
277 softmac_ps_mgmt_xmit(struct sk_buff *skb,
278 struct rtllib_device *ieee)
279 {
280 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
281 struct rtllib_hdr_3addr *header =
282 (struct rtllib_hdr_3addr *) skb->data;
283 u16 fc, type, stype;
284 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
285
286 fc = le16_to_cpu(header->frame_ctl);
287 type = WLAN_FC_GET_TYPE(fc);
288 stype = WLAN_FC_GET_STYPE(fc);
289
290
291 if (stype != RTLLIB_STYPE_PSPOLL)
292 tcb_desc->queue_index = MGNT_QUEUE;
293 else
294 tcb_desc->queue_index = HIGH_QUEUE;
295
296 if (ieee->disable_mgnt_queue)
297 tcb_desc->queue_index = HIGH_QUEUE;
298
299
300 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
301 tcb_desc->RATRIndex = 7;
302 tcb_desc->bTxDisableRateFallBack = 1;
303 tcb_desc->bTxUseDriverAssingedRate = 1;
304 if (single) {
305 if (type != RTLLIB_FTYPE_CTL) {
306 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
307
308 if (ieee->seq_ctrl[0] == 0xFFF)
309 ieee->seq_ctrl[0] = 0;
310 else
311 ieee->seq_ctrl[0]++;
312
313 }
314
315 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
316 ieee->basic_rate);
317
318 } else {
319 if (type != RTLLIB_FTYPE_CTL) {
320 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
321
322 if (ieee->seq_ctrl[0] == 0xFFF)
323 ieee->seq_ctrl[0] = 0;
324 else
325 ieee->seq_ctrl[0]++;
326 }
327 ieee->softmac_hard_start_xmit(skb, ieee->dev);
328
329 }
330 }
331
332 static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
333 {
334 unsigned int len, rate_len;
335 u8 *tag;
336 struct sk_buff *skb;
337 struct rtllib_probe_request *req;
338
339 len = ieee->current_network.ssid_len;
340
341 rate_len = rtllib_MFIE_rate_len(ieee);
342
343 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
344 2 + len + rate_len + ieee->tx_headroom);
345
346 if (!skb)
347 return NULL;
348
349 skb_reserve(skb, ieee->tx_headroom);
350
351 req = skb_put(skb, sizeof(struct rtllib_probe_request));
352 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
353 req->header.duration_id = 0;
354
355 eth_broadcast_addr(req->header.addr1);
356 ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
357 eth_broadcast_addr(req->header.addr3);
358
359 tag = skb_put(skb, len + 2 + rate_len);
360
361 *tag++ = MFIE_TYPE_SSID;
362 *tag++ = len;
363 memcpy(tag, ieee->current_network.ssid, len);
364 tag += len;
365
366 rtllib_MFIE_Brate(ieee, &tag);
367 rtllib_MFIE_Grate(ieee, &tag);
368
369 return skb;
370 }
371
372 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
373
374 static void rtllib_send_beacon(struct rtllib_device *ieee)
375 {
376 struct sk_buff *skb;
377
378 if (!ieee->ieee_up)
379 return;
380 skb = rtllib_get_beacon_(ieee);
381
382 if (skb) {
383 softmac_mgmt_xmit(skb, ieee);
384 ieee->softmac_stats.tx_beacons++;
385 }
386
387 if (ieee->beacon_txing && ieee->ieee_up)
388 mod_timer(&ieee->beacon_timer, jiffies +
389 (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
390 }
391
392
393 static void rtllib_send_beacon_cb(struct timer_list *t)
394 {
395 struct rtllib_device *ieee =
396 from_timer(ieee, t, beacon_timer);
397 unsigned long flags;
398
399 spin_lock_irqsave(&ieee->beacon_lock, flags);
400 rtllib_send_beacon(ieee);
401 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
402 }
403
404
405 void rtllib_EnableNetMonitorMode(struct net_device *dev,
406 bool bInitState)
407 {
408 struct rtllib_device *ieee = netdev_priv_rsl(dev);
409
410 netdev_info(dev, "========>Enter Monitor Mode\n");
411
412 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
413 }
414
415
416
417
418
419 void rtllib_DisableNetMonitorMode(struct net_device *dev,
420 bool bInitState)
421 {
422 struct rtllib_device *ieee = netdev_priv_rsl(dev);
423
424 netdev_info(dev, "========>Exit Monitor Mode\n");
425
426 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
427 }
428
429
430
431
432
433
434
435
436 void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
437 bool bInitState)
438 {
439 bool bFilterOutNonAssociatedBSSID = false;
440
441 struct rtllib_device *ieee = netdev_priv_rsl(dev);
442
443 netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
444
445 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
446 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
447 (u8 *)&bFilterOutNonAssociatedBSSID);
448
449 ieee->bNetPromiscuousMode = true;
450 }
451 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
452
453
454
455
456
457 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
458 bool bInitState)
459 {
460 bool bFilterOutNonAssociatedBSSID = true;
461
462 struct rtllib_device *ieee = netdev_priv_rsl(dev);
463
464 netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
465
466 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
467 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
468 (u8 *)&bFilterOutNonAssociatedBSSID);
469
470 ieee->bNetPromiscuousMode = false;
471 }
472 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
473
474 static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
475 {
476 struct sk_buff *skb;
477
478 skb = rtllib_probe_req(ieee);
479 if (skb) {
480 softmac_mgmt_xmit(skb, ieee);
481 ieee->softmac_stats.tx_probe_rq++;
482 }
483 }
484
485
486 static void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
487 {
488 if (ieee->active_scan && (ieee->softmac_features &
489 IEEE_SOFTMAC_PROBERQ)) {
490 rtllib_send_probe(ieee, 0);
491 rtllib_send_probe(ieee, 0);
492 }
493 }
494
495 static void rtllib_update_active_chan_map(struct rtllib_device *ieee)
496 {
497 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
498 MAX_CHANNEL_NUMBER+1);
499 }
500
501
502
503
504 static void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
505 {
506 union iwreq_data wrqu;
507 short ch = 0;
508
509 rtllib_update_active_chan_map(ieee);
510
511 ieee->be_scan_inprogress = true;
512
513 mutex_lock(&ieee->scan_mutex);
514
515 while (1) {
516 do {
517 ch++;
518 if (ch > MAX_CHANNEL_NUMBER)
519 goto out;
520 } while (!ieee->active_channel_map[ch]);
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541 if (ieee->state == RTLLIB_LINKED)
542 goto out;
543 if (ieee->sync_scan_hurryup) {
544 netdev_info(ieee->dev,
545 "============>sync_scan_hurryup out\n");
546 goto out;
547 }
548
549 ieee->set_chan(ieee->dev, ch);
550 if (ieee->active_channel_map[ch] == 1)
551 rtllib_send_probe_requests(ieee, 0);
552
553
554
555
556 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
557 }
558 out:
559 ieee->actscanning = false;
560 ieee->sync_scan_hurryup = 0;
561
562 if (ieee->state >= RTLLIB_LINKED) {
563 if (IS_DOT11D_ENABLE(ieee))
564 dot11d_scan_complete(ieee);
565 }
566 mutex_unlock(&ieee->scan_mutex);
567
568 ieee->be_scan_inprogress = false;
569
570 memset(&wrqu, 0, sizeof(wrqu));
571 wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
572 }
573
574 static void rtllib_softmac_scan_wq(void *data)
575 {
576 struct rtllib_device *ieee = container_of_dwork_rsl(data,
577 struct rtllib_device, softmac_scan_wq);
578 u8 last_channel = ieee->current_network.channel;
579
580 rtllib_update_active_chan_map(ieee);
581
582 if (!ieee->ieee_up)
583 return;
584 if (rtllib_act_scanning(ieee, true))
585 return;
586
587 mutex_lock(&ieee->scan_mutex);
588
589 if (ieee->eRFPowerState == eRfOff) {
590 netdev_info(ieee->dev,
591 "======>%s():rf state is eRfOff, return\n",
592 __func__);
593 goto out1;
594 }
595
596 do {
597 ieee->current_network.channel =
598 (ieee->current_network.channel + 1) %
599 MAX_CHANNEL_NUMBER;
600 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
601 if (!ieee->active_channel_map[ieee->current_network.channel])
602 ieee->current_network.channel = 6;
603 goto out;
604 }
605 } while (!ieee->active_channel_map[ieee->current_network.channel]);
606
607 if (ieee->scanning_continue == 0)
608 goto out;
609
610 ieee->set_chan(ieee->dev, ieee->current_network.channel);
611
612 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
613 rtllib_send_probe_requests(ieee, 0);
614
615 schedule_delayed_work(&ieee->softmac_scan_wq,
616 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
617
618 mutex_unlock(&ieee->scan_mutex);
619 return;
620
621 out:
622 if (IS_DOT11D_ENABLE(ieee))
623 dot11d_scan_complete(ieee);
624 ieee->current_network.channel = last_channel;
625
626 out1:
627 ieee->actscanning = false;
628 ieee->scan_watch_dog = 0;
629 ieee->scanning_continue = 0;
630 mutex_unlock(&ieee->scan_mutex);
631 }
632
633
634
635 static void rtllib_beacons_start(struct rtllib_device *ieee)
636 {
637 unsigned long flags;
638
639 spin_lock_irqsave(&ieee->beacon_lock, flags);
640
641 ieee->beacon_txing = 1;
642 rtllib_send_beacon(ieee);
643
644 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
645 }
646
647 static void rtllib_beacons_stop(struct rtllib_device *ieee)
648 {
649 unsigned long flags;
650
651 spin_lock_irqsave(&ieee->beacon_lock, flags);
652
653 ieee->beacon_txing = 0;
654 del_timer_sync(&ieee->beacon_timer);
655
656 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
657
658 }
659
660
661 void rtllib_stop_send_beacons(struct rtllib_device *ieee)
662 {
663 if (ieee->stop_send_beacons)
664 ieee->stop_send_beacons(ieee->dev);
665 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
666 rtllib_beacons_stop(ieee);
667 }
668 EXPORT_SYMBOL(rtllib_stop_send_beacons);
669
670
671 void rtllib_start_send_beacons(struct rtllib_device *ieee)
672 {
673 if (ieee->start_send_beacons)
674 ieee->start_send_beacons(ieee->dev);
675 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
676 rtllib_beacons_start(ieee);
677 }
678 EXPORT_SYMBOL(rtllib_start_send_beacons);
679
680
681 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
682 {
683 mutex_lock(&ieee->scan_mutex);
684 ieee->scan_watch_dog = 0;
685 if (ieee->scanning_continue == 1) {
686 ieee->scanning_continue = 0;
687 ieee->actscanning = false;
688
689 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
690 }
691
692 mutex_unlock(&ieee->scan_mutex);
693 }
694
695 void rtllib_stop_scan(struct rtllib_device *ieee)
696 {
697 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
698 rtllib_softmac_stop_scan(ieee);
699 } else {
700 if (ieee->rtllib_stop_hw_scan)
701 ieee->rtllib_stop_hw_scan(ieee->dev);
702 }
703 }
704 EXPORT_SYMBOL(rtllib_stop_scan);
705
706 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
707 {
708 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
709 ieee->sync_scan_hurryup = 1;
710 } else {
711 if (ieee->rtllib_stop_hw_scan)
712 ieee->rtllib_stop_hw_scan(ieee->dev);
713 }
714 }
715 EXPORT_SYMBOL(rtllib_stop_scan_syncro);
716
717 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
718 {
719 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
720 if (sync_scan)
721 return ieee->be_scan_inprogress;
722 else
723 return ieee->actscanning || ieee->be_scan_inprogress;
724 } else {
725 return test_bit(STATUS_SCANNING, &ieee->status);
726 }
727 }
728 EXPORT_SYMBOL(rtllib_act_scanning);
729
730
731 static void rtllib_start_scan(struct rtllib_device *ieee)
732 {
733 RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
734 if (ieee->rtllib_ips_leave_wq != NULL)
735 ieee->rtllib_ips_leave_wq(ieee->dev);
736
737 if (IS_DOT11D_ENABLE(ieee)) {
738 if (IS_COUNTRY_IE_VALID(ieee))
739 RESET_CIE_WATCHDOG(ieee);
740 }
741 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
742 if (ieee->scanning_continue == 0) {
743 ieee->actscanning = true;
744 ieee->scanning_continue = 1;
745 schedule_delayed_work(&ieee->softmac_scan_wq, 0);
746 }
747 } else {
748 if (ieee->rtllib_start_hw_scan)
749 ieee->rtllib_start_hw_scan(ieee->dev);
750 }
751 }
752
753
754 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
755 {
756 if (IS_DOT11D_ENABLE(ieee)) {
757 if (IS_COUNTRY_IE_VALID(ieee))
758 RESET_CIE_WATCHDOG(ieee);
759 }
760 ieee->sync_scan_hurryup = 0;
761 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
762 rtllib_softmac_scan_syncro(ieee, is_mesh);
763 } else {
764 if (ieee->rtllib_start_hw_scan)
765 ieee->rtllib_start_hw_scan(ieee->dev);
766 }
767 }
768 EXPORT_SYMBOL(rtllib_start_scan_syncro);
769
770 static inline struct sk_buff *
771 rtllib_authentication_req(struct rtllib_network *beacon,
772 struct rtllib_device *ieee,
773 int challengelen, u8 *daddr)
774 {
775 struct sk_buff *skb;
776 struct rtllib_authentication *auth;
777 int len;
778
779 len = sizeof(struct rtllib_authentication) + challengelen +
780 ieee->tx_headroom + 4;
781 skb = dev_alloc_skb(len);
782
783 if (!skb)
784 return NULL;
785
786 skb_reserve(skb, ieee->tx_headroom);
787
788 auth = skb_put(skb, sizeof(struct rtllib_authentication));
789
790 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
791 if (challengelen)
792 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
793
794 auth->header.duration_id = cpu_to_le16(0x013a);
795 ether_addr_copy(auth->header.addr1, beacon->bssid);
796 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
797 ether_addr_copy(auth->header.addr3, beacon->bssid);
798 if (ieee->auth_mode == 0)
799 auth->algorithm = WLAN_AUTH_OPEN;
800 else if (ieee->auth_mode == 1)
801 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
802 else if (ieee->auth_mode == 2)
803 auth->algorithm = WLAN_AUTH_OPEN;
804 auth->transaction = cpu_to_le16(ieee->associate_seq);
805 ieee->associate_seq++;
806
807 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
808
809 return skb;
810 }
811
812 static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
813 const u8 *dest)
814 {
815 u8 *tag;
816 int beacon_size;
817 struct rtllib_probe_response *beacon_buf;
818 struct sk_buff *skb = NULL;
819 int encrypt;
820 int atim_len, erp_len;
821 struct lib80211_crypt_data *crypt;
822
823 char *ssid = ieee->current_network.ssid;
824 int ssid_len = ieee->current_network.ssid_len;
825 int rate_len = ieee->current_network.rates_len+2;
826 int rate_ex_len = ieee->current_network.rates_ex_len;
827 int wpa_ie_len = ieee->wpa_ie_len;
828 u8 erpinfo_content = 0;
829
830 u8 *tmp_ht_cap_buf = NULL;
831 u8 tmp_ht_cap_len = 0;
832 u8 *tmp_ht_info_buf = NULL;
833 u8 tmp_ht_info_len = 0;
834 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
835 u8 *tmp_generic_ie_buf = NULL;
836 u8 tmp_generic_ie_len = 0;
837
838 if (rate_ex_len > 0)
839 rate_ex_len += 2;
840
841 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
842 atim_len = 4;
843 else
844 atim_len = 0;
845
846 if ((ieee->current_network.mode == IEEE_G) ||
847 (ieee->current_network.mode == IEEE_N_24G &&
848 ieee->pHTInfo->bCurSuppCCK)) {
849 erp_len = 3;
850 erpinfo_content = 0;
851 if (ieee->current_network.buseprotection)
852 erpinfo_content |= ERP_UseProtection;
853 } else
854 erp_len = 0;
855
856 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
857 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
858 ((strcmp(crypt->ops->name, "R-WEP") == 0 || wpa_ie_len));
859 if (ieee->pHTInfo->bCurrentHTSupport) {
860 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
861 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
862 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
863 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
864 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
865 &tmp_ht_cap_len, encrypt, false);
866 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
867 encrypt);
868
869 if (pHTInfo->bRegRT2RTAggregation) {
870 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
871 tmp_generic_ie_len =
872 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
873 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
874 &tmp_generic_ie_len);
875 }
876 }
877
878 beacon_size = sizeof(struct rtllib_probe_response)+2+
879 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
880 + wpa_ie_len + ieee->tx_headroom;
881 skb = dev_alloc_skb(beacon_size);
882 if (!skb)
883 return NULL;
884
885 skb_reserve(skb, ieee->tx_headroom);
886
887 beacon_buf = skb_put(skb, (beacon_size - ieee->tx_headroom));
888 ether_addr_copy(beacon_buf->header.addr1, dest);
889 ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
890 ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
891
892 beacon_buf->header.duration_id = 0;
893 beacon_buf->beacon_interval =
894 cpu_to_le16(ieee->current_network.beacon_interval);
895 beacon_buf->capability =
896 cpu_to_le16(ieee->current_network.capability &
897 WLAN_CAPABILITY_IBSS);
898 beacon_buf->capability |=
899 cpu_to_le16(ieee->current_network.capability &
900 WLAN_CAPABILITY_SHORT_PREAMBLE);
901
902 if (ieee->short_slot && (ieee->current_network.capability &
903 WLAN_CAPABILITY_SHORT_SLOT_TIME))
904 beacon_buf->capability |=
905 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
906
907 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
908 if (encrypt)
909 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
910
911
912 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
913 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
914 beacon_buf->info_element[0].len = ssid_len;
915
916 tag = (u8 *) beacon_buf->info_element[0].data;
917
918 memcpy(tag, ssid, ssid_len);
919
920 tag += ssid_len;
921
922 *(tag++) = MFIE_TYPE_RATES;
923 *(tag++) = rate_len-2;
924 memcpy(tag, ieee->current_network.rates, rate_len-2);
925 tag += rate_len-2;
926
927 *(tag++) = MFIE_TYPE_DS_SET;
928 *(tag++) = 1;
929 *(tag++) = ieee->current_network.channel;
930
931 if (atim_len) {
932 u16 val16;
933 *(tag++) = MFIE_TYPE_IBSS_SET;
934 *(tag++) = 2;
935 val16 = ieee->current_network.atim_window;
936 memcpy((u8 *)tag, (u8 *)&val16, 2);
937 tag += 2;
938 }
939
940 if (erp_len) {
941 *(tag++) = MFIE_TYPE_ERP;
942 *(tag++) = 1;
943 *(tag++) = erpinfo_content;
944 }
945 if (rate_ex_len) {
946 *(tag++) = MFIE_TYPE_RATES_EX;
947 *(tag++) = rate_ex_len-2;
948 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
949 tag += rate_ex_len-2;
950 }
951
952 if (wpa_ie_len) {
953 if (ieee->iw_mode == IW_MODE_ADHOC)
954 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
955 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
956 tag += ieee->wpa_ie_len;
957 }
958 return skb;
959 }
960
961 static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
962 {
963 struct sk_buff *skb;
964 u8 *tag;
965
966 struct lib80211_crypt_data *crypt;
967 struct rtllib_assoc_response_frame *assoc;
968 short encrypt;
969
970 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
971 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
972 ieee->tx_headroom;
973
974 skb = dev_alloc_skb(len);
975
976 if (!skb)
977 return NULL;
978
979 skb_reserve(skb, ieee->tx_headroom);
980
981 assoc = skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
982
983 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
984 ether_addr_copy(assoc->header.addr1, dest);
985 ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
986 ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
987 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
988 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
989
990
991 if (ieee->short_slot)
992 assoc->capability |=
993 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
994
995 if (ieee->host_encrypt)
996 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
997 else
998 crypt = NULL;
999
1000 encrypt = (crypt && crypt->ops);
1001
1002 if (encrypt)
1003 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1004
1005 assoc->status = 0;
1006 assoc->aid = cpu_to_le16(ieee->assoc_id);
1007 if (ieee->assoc_id == 0x2007)
1008 ieee->assoc_id = 0;
1009 else
1010 ieee->assoc_id++;
1011
1012 tag = skb_put(skb, rate_len);
1013 rtllib_MFIE_Brate(ieee, &tag);
1014 rtllib_MFIE_Grate(ieee, &tag);
1015
1016 return skb;
1017 }
1018
1019 static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
1020 u8 *dest)
1021 {
1022 struct sk_buff *skb = NULL;
1023 struct rtllib_authentication *auth;
1024 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
1025
1026 skb = dev_alloc_skb(len);
1027 if (!skb)
1028 return NULL;
1029
1030 skb->len = sizeof(struct rtllib_authentication);
1031
1032 skb_reserve(skb, ieee->tx_headroom);
1033
1034 auth = skb_put(skb, sizeof(struct rtllib_authentication));
1035
1036 auth->status = cpu_to_le16(status);
1037 auth->transaction = cpu_to_le16(2);
1038 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1039
1040 ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
1041 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
1042 ether_addr_copy(auth->header.addr1, dest);
1043 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1044 return skb;
1045
1046
1047 }
1048
1049 static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
1050 {
1051 struct sk_buff *skb;
1052 struct rtllib_hdr_3addr *hdr;
1053
1054 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
1055 if (!skb)
1056 return NULL;
1057
1058 skb_reserve(skb, ieee->tx_headroom);
1059
1060 hdr = skb_put(skb, sizeof(struct rtllib_hdr_3addr));
1061
1062 ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
1063 ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
1064 ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
1065
1066 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1067 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
1068 (pwr ? RTLLIB_FCTL_PM : 0));
1069
1070 return skb;
1071
1072
1073 }
1074
1075 static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
1076 {
1077 struct sk_buff *skb;
1078 struct rtllib_pspoll_hdr *hdr;
1079
1080 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
1081 if (!skb)
1082 return NULL;
1083
1084 skb_reserve(skb, ieee->tx_headroom);
1085
1086 hdr = skb_put(skb, sizeof(struct rtllib_pspoll_hdr));
1087
1088 ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
1089 ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
1090
1091 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
1092 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1093 RTLLIB_FCTL_PM);
1094
1095 return skb;
1096
1097 }
1098
1099 static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
1100 {
1101 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1102
1103 if (buf)
1104 softmac_mgmt_xmit(buf, ieee);
1105 }
1106
1107
1108 static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
1109 {
1110 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1111
1112 if (buf)
1113 softmac_mgmt_xmit(buf, ieee);
1114 }
1115
1116
1117 static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
1118 {
1119 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
1120
1121 if (buf)
1122 softmac_mgmt_xmit(buf, ieee);
1123 }
1124
1125
1126 static inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1127 {
1128 int i = 0;
1129
1130 do {
1131 if ((ieee->PMKIDList[i].bUsed) &&
1132 (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
1133 break;
1134 i++;
1135 } while (i < NUM_PMKID_CACHE);
1136
1137 if (i == NUM_PMKID_CACHE)
1138 i = -1;
1139 return i;
1140 }
1141
1142 static inline struct sk_buff *
1143 rtllib_association_req(struct rtllib_network *beacon,
1144 struct rtllib_device *ieee)
1145 {
1146 struct sk_buff *skb;
1147 struct rtllib_assoc_request_frame *hdr;
1148 u8 *tag, *ies;
1149 int i;
1150 u8 *ht_cap_buf = NULL;
1151 u8 ht_cap_len = 0;
1152 u8 *realtek_ie_buf = NULL;
1153 u8 realtek_ie_len = 0;
1154 int wpa_ie_len = ieee->wpa_ie_len;
1155 int wps_ie_len = ieee->wps_ie_len;
1156 unsigned int ckip_ie_len = 0;
1157 unsigned int ccxrm_ie_len = 0;
1158 unsigned int cxvernum_ie_len = 0;
1159 struct lib80211_crypt_data *crypt;
1160 int encrypt;
1161 int PMKCacheIdx;
1162
1163 unsigned int rate_len = (beacon->rates_len ?
1164 (beacon->rates_len + 2) : 0) +
1165 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1166 2 : 0);
1167
1168 unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1169 unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
1170
1171 int len = 0;
1172
1173 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1174 if (crypt != NULL)
1175 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
1176 ((strcmp(crypt->ops->name, "R-WEP") == 0 ||
1177 wpa_ie_len));
1178 else
1179 encrypt = 0;
1180
1181 if ((ieee->rtllib_ap_sec_type &&
1182 (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
1183 ieee->bForcedBgMode) {
1184 ieee->pHTInfo->bEnableHT = 0;
1185 ieee->mode = WIRELESS_MODE_G;
1186 }
1187
1188 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1189 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
1190 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
1191 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1192 encrypt, true);
1193 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1194 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
1195 realtek_ie_len =
1196 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1197 HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1198 &realtek_ie_len);
1199 }
1200 }
1201
1202 if (beacon->bCkipSupported)
1203 ckip_ie_len = 30+2;
1204 if (beacon->bCcxRmEnable)
1205 ccxrm_ie_len = 6+2;
1206 if (beacon->BssCcxVerNumber >= 2)
1207 cxvernum_ie_len = 5+2;
1208
1209 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
1210 if (PMKCacheIdx >= 0) {
1211 wpa_ie_len += 18;
1212 netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
1213 wpa_ie_len);
1214 }
1215 len = sizeof(struct rtllib_assoc_request_frame) + 2
1216 + beacon->ssid_len
1217 + rate_len
1218 + wpa_ie_len
1219 + wps_ie_len
1220 + wmm_info_len
1221 + turbo_info_len
1222 + ht_cap_len
1223 + realtek_ie_len
1224 + ckip_ie_len
1225 + ccxrm_ie_len
1226 + cxvernum_ie_len
1227 + ieee->tx_headroom;
1228
1229 skb = dev_alloc_skb(len);
1230
1231 if (!skb)
1232 return NULL;
1233
1234 skb_reserve(skb, ieee->tx_headroom);
1235
1236 hdr = skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
1237
1238
1239 hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
1240 hdr->header.duration_id = cpu_to_le16(37);
1241 ether_addr_copy(hdr->header.addr1, beacon->bssid);
1242 ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
1243 ether_addr_copy(hdr->header.addr3, beacon->bssid);
1244
1245 ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
1246
1247 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1248 if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
1249 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1250
1251 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1252 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1253
1254 if (ieee->short_slot &&
1255 (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
1256 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1257
1258
1259 hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
1260
1261 hdr->info_element[0].id = MFIE_TYPE_SSID;
1262
1263 hdr->info_element[0].len = beacon->ssid_len;
1264 skb_put_data(skb, beacon->ssid, beacon->ssid_len);
1265
1266 tag = skb_put(skb, rate_len);
1267
1268 if (beacon->rates_len) {
1269 *tag++ = MFIE_TYPE_RATES;
1270 *tag++ = beacon->rates_len;
1271 for (i = 0; i < beacon->rates_len; i++)
1272 *tag++ = beacon->rates[i];
1273 }
1274
1275 if (beacon->rates_ex_len) {
1276 *tag++ = MFIE_TYPE_RATES_EX;
1277 *tag++ = beacon->rates_ex_len;
1278 for (i = 0; i < beacon->rates_ex_len; i++)
1279 *tag++ = beacon->rates_ex[i];
1280 }
1281
1282 if (beacon->bCkipSupported) {
1283 static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
1284 u8 CcxAironetBuf[30];
1285 struct octet_string osCcxAironetIE;
1286
1287 memset(CcxAironetBuf, 0, 30);
1288 osCcxAironetIE.Octet = CcxAironetBuf;
1289 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
1290 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1291 sizeof(AironetIeOui));
1292
1293 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1294 (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
1295 tag = skb_put(skb, ckip_ie_len);
1296 *tag++ = MFIE_TYPE_AIRONET;
1297 *tag++ = osCcxAironetIE.Length;
1298 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
1299 tag += osCcxAironetIE.Length;
1300 }
1301
1302 if (beacon->bCcxRmEnable) {
1303 static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1304 0x00};
1305 struct octet_string osCcxRmCap;
1306
1307 osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
1308 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
1309 tag = skb_put(skb, ccxrm_ie_len);
1310 *tag++ = MFIE_TYPE_GENERIC;
1311 *tag++ = osCcxRmCap.Length;
1312 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
1313 tag += osCcxRmCap.Length;
1314 }
1315
1316 if (beacon->BssCcxVerNumber >= 2) {
1317 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1318 struct octet_string osCcxVerNum;
1319
1320 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1321 osCcxVerNum.Octet = CcxVerNumBuf;
1322 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
1323 tag = skb_put(skb, cxvernum_ie_len);
1324 *tag++ = MFIE_TYPE_GENERIC;
1325 *tag++ = osCcxVerNum.Length;
1326 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
1327 tag += osCcxVerNum.Length;
1328 }
1329 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1330 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
1331 tag = skb_put(skb, ht_cap_len);
1332 *tag++ = MFIE_TYPE_HT_CAP;
1333 *tag++ = ht_cap_len - 2;
1334 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1335 tag += ht_cap_len - 2;
1336 }
1337 }
1338
1339 if (wpa_ie_len) {
1340 skb_put_data(skb, ieee->wpa_ie, ieee->wpa_ie_len);
1341
1342 if (PMKCacheIdx >= 0) {
1343 tag = skb_put(skb, 18);
1344 *tag = 1;
1345 *(tag + 1) = 0;
1346 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1347 16);
1348 }
1349 }
1350 if (wmm_info_len) {
1351 tag = skb_put(skb, wmm_info_len);
1352 rtllib_WMM_Info(ieee, &tag);
1353 }
1354
1355 if (wps_ie_len && ieee->wps_ie) {
1356 skb_put_data(skb, ieee->wps_ie, wps_ie_len);
1357 }
1358
1359 if (turbo_info_len) {
1360 tag = skb_put(skb, turbo_info_len);
1361 rtllib_TURBO_Info(ieee, &tag);
1362 }
1363
1364 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1365 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
1366 tag = skb_put(skb, ht_cap_len);
1367 *tag++ = MFIE_TYPE_GENERIC;
1368 *tag++ = ht_cap_len - 2;
1369 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1370 tag += ht_cap_len - 2;
1371 }
1372
1373 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1374 tag = skb_put(skb, realtek_ie_len);
1375 *tag++ = MFIE_TYPE_GENERIC;
1376 *tag++ = realtek_ie_len - 2;
1377 memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
1378 }
1379 }
1380
1381 kfree(ieee->assocreq_ies);
1382 ieee->assocreq_ies = NULL;
1383 ies = &(hdr->info_element[0].id);
1384 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1385 ieee->assocreq_ies = kmemdup(ies, ieee->assocreq_ies_len, GFP_ATOMIC);
1386 if (!ieee->assocreq_ies)
1387 ieee->assocreq_ies_len = 0;
1388
1389 return skb;
1390 }
1391
1392 static void rtllib_associate_abort(struct rtllib_device *ieee)
1393 {
1394 unsigned long flags;
1395
1396 spin_lock_irqsave(&ieee->lock, flags);
1397
1398 ieee->associate_seq++;
1399
1400
1401
1402
1403
1404
1405
1406 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
1407 netdev_dbg(ieee->dev, "Authentication failed\n");
1408 ieee->softmac_stats.no_auth_rs++;
1409 } else {
1410 netdev_dbg(ieee->dev, "Association failed\n");
1411 ieee->softmac_stats.no_ass_rs++;
1412 }
1413
1414 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1415
1416 schedule_delayed_work(&ieee->associate_retry_wq,
1417 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
1418
1419 spin_unlock_irqrestore(&ieee->lock, flags);
1420 }
1421
1422 static void rtllib_associate_abort_cb(struct timer_list *t)
1423 {
1424 struct rtllib_device *dev = from_timer(dev, t, associate_timer);
1425
1426 rtllib_associate_abort(dev);
1427 }
1428
1429 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
1430 {
1431 struct rtllib_network *beacon = &ieee->current_network;
1432 struct sk_buff *skb;
1433
1434 netdev_dbg(ieee->dev, "Stopping scan\n");
1435
1436 ieee->softmac_stats.tx_auth_rq++;
1437
1438 skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
1439
1440 if (!skb)
1441 rtllib_associate_abort(ieee);
1442 else {
1443 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
1444 netdev_dbg(ieee->dev, "Sending authentication request\n");
1445 softmac_mgmt_xmit(skb, ieee);
1446 if (!timer_pending(&ieee->associate_timer)) {
1447 ieee->associate_timer.expires = jiffies + (HZ / 2);
1448 add_timer(&ieee->associate_timer);
1449 }
1450 }
1451 }
1452
1453 static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge,
1454 int chlen)
1455 {
1456 u8 *c;
1457 struct sk_buff *skb;
1458 struct rtllib_network *beacon = &ieee->current_network;
1459
1460 ieee->associate_seq++;
1461 ieee->softmac_stats.tx_auth_rq++;
1462
1463 skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
1464
1465 if (!skb)
1466 rtllib_associate_abort(ieee);
1467 else {
1468 c = skb_put(skb, chlen+2);
1469 *(c++) = MFIE_TYPE_CHALLENGE;
1470 *(c++) = chlen;
1471 memcpy(c, challenge, chlen);
1472
1473 netdev_dbg(ieee->dev,
1474 "Sending authentication challenge response\n");
1475
1476 rtllib_encrypt_fragment(ieee, skb,
1477 sizeof(struct rtllib_hdr_3addr));
1478
1479 softmac_mgmt_xmit(skb, ieee);
1480 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1481 }
1482 kfree(challenge);
1483 }
1484
1485 static void rtllib_associate_step2(struct rtllib_device *ieee)
1486 {
1487 struct sk_buff *skb;
1488 struct rtllib_network *beacon = &ieee->current_network;
1489
1490 del_timer_sync(&ieee->associate_timer);
1491
1492 netdev_dbg(ieee->dev, "Sending association request\n");
1493
1494 ieee->softmac_stats.tx_ass_rq++;
1495 skb = rtllib_association_req(beacon, ieee);
1496 if (!skb)
1497 rtllib_associate_abort(ieee);
1498 else {
1499 softmac_mgmt_xmit(skb, ieee);
1500 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1501 }
1502 }
1503
1504 static void rtllib_associate_complete_wq(void *data)
1505 {
1506 struct rtllib_device *ieee = (struct rtllib_device *)
1507 container_of_work_rsl(data,
1508 struct rtllib_device,
1509 associate_complete_wq);
1510 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
1511
1512 netdev_info(ieee->dev, "Associated successfully with %pM\n",
1513 ieee->current_network.bssid);
1514 if (!ieee->is_silent_reset) {
1515 netdev_info(ieee->dev, "normal associate\n");
1516 notify_wx_assoc_event(ieee);
1517 }
1518
1519 netif_carrier_on(ieee->dev);
1520 ieee->is_roaming = false;
1521 if (rtllib_is_54g(&ieee->current_network) &&
1522 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1523 ieee->rate = 108;
1524 netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
1525 } else {
1526 ieee->rate = 22;
1527 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1528 netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
1529 }
1530 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1531 netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
1532 HTOnAssocRsp(ieee);
1533 } else {
1534 netdev_info(ieee->dev,
1535 "Successfully associated, ht not enabled(%d, %d)\n",
1536 ieee->pHTInfo->bCurrentHTSupport,
1537 ieee->pHTInfo->bEnableHT);
1538 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1539 }
1540 ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1541 ieee->current_network.beacon_interval /
1542 500);
1543 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1544 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
1545 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
1546 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
1547 }
1548 pPSC->LpsIdleCount = 0;
1549 ieee->link_change(ieee->dev);
1550
1551 if (ieee->is_silent_reset) {
1552 netdev_info(ieee->dev, "silent reset associate\n");
1553 ieee->is_silent_reset = false;
1554 }
1555
1556 if (ieee->data_hard_resume)
1557 ieee->data_hard_resume(ieee->dev);
1558
1559 }
1560
1561 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1562 {
1563 }
1564
1565 static void rtllib_associate_complete(struct rtllib_device *ieee)
1566 {
1567 del_timer_sync(&ieee->associate_timer);
1568
1569 ieee->state = RTLLIB_LINKED;
1570 rtllib_sta_send_associnfo(ieee);
1571
1572 schedule_work(&ieee->associate_complete_wq);
1573 }
1574
1575 static void rtllib_associate_procedure_wq(void *data)
1576 {
1577 struct rtllib_device *ieee = container_of_dwork_rsl(data,
1578 struct rtllib_device,
1579 associate_procedure_wq);
1580 rtllib_stop_scan_syncro(ieee);
1581 if (ieee->rtllib_ips_leave != NULL)
1582 ieee->rtllib_ips_leave(ieee->dev);
1583 mutex_lock(&ieee->wx_mutex);
1584
1585 if (ieee->data_hard_stop)
1586 ieee->data_hard_stop(ieee->dev);
1587
1588 rtllib_stop_scan(ieee);
1589 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1590 ieee->current_network.channel);
1591 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1592 if (ieee->eRFPowerState == eRfOff) {
1593 RT_TRACE(COMP_DBG,
1594 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1595 __func__);
1596 if (ieee->rtllib_ips_leave_wq != NULL)
1597 ieee->rtllib_ips_leave_wq(ieee->dev);
1598 mutex_unlock(&ieee->wx_mutex);
1599 return;
1600 }
1601 ieee->associate_seq = 1;
1602
1603 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1604
1605 mutex_unlock(&ieee->wx_mutex);
1606 }
1607
1608 inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1609 struct rtllib_network *net)
1610 {
1611 u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
1612 int tmp_ssid_len = 0;
1613
1614 short apset, ssidset, ssidbroad, apmatch, ssidmatch;
1615
1616
1617
1618
1619 if (ieee->state != RTLLIB_NOLINK)
1620 return;
1621
1622 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1623 WLAN_CAPABILITY_ESS))
1624 return;
1625
1626 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1627 WLAN_CAPABILITY_IBSS))
1628 return;
1629
1630 if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1631 (net->channel > ieee->ibss_maxjoin_chal))
1632 return;
1633 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1634
1635
1636
1637
1638 apset = ieee->wap_set;
1639 ssidset = ieee->ssid_set;
1640 ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
1641 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1642 ETH_ALEN) == 0);
1643 if (!ssidbroad) {
1644 ssidmatch = (ieee->current_network.ssid_len ==
1645 net->hidden_ssid_len) &&
1646 (!strncmp(ieee->current_network.ssid,
1647 net->hidden_ssid, net->hidden_ssid_len));
1648 if (net->hidden_ssid_len > 0) {
1649 strncpy(net->ssid, net->hidden_ssid,
1650 net->hidden_ssid_len);
1651 net->ssid_len = net->hidden_ssid_len;
1652 ssidbroad = 1;
1653 }
1654 } else
1655 ssidmatch =
1656 (ieee->current_network.ssid_len == net->ssid_len) &&
1657 (!strncmp(ieee->current_network.ssid, net->ssid,
1658 net->ssid_len));
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670 if ((apset && apmatch &&
1671 ((ssidset && ssidbroad && ssidmatch) ||
1672 (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1673 (!apset && ssidset && ssidbroad && ssidmatch) ||
1674 (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1675
1676
1677
1678 if (!ssidbroad) {
1679 memcpy(tmp_ssid, ieee->current_network.ssid,
1680 ieee->current_network.ssid_len);
1681 tmp_ssid_len = ieee->current_network.ssid_len;
1682 }
1683 memcpy(&ieee->current_network, net,
1684 sizeof(ieee->current_network));
1685 if (!ssidbroad) {
1686 memcpy(ieee->current_network.ssid, tmp_ssid,
1687 tmp_ssid_len);
1688 ieee->current_network.ssid_len = tmp_ssid_len;
1689 }
1690 netdev_info(ieee->dev,
1691 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1692 ieee->current_network.ssid,
1693 ieee->current_network.channel,
1694 ieee->current_network.qos_data.supported,
1695 ieee->pHTInfo->bEnableHT,
1696 ieee->current_network.bssht.bdSupportHT,
1697 ieee->current_network.mode,
1698 ieee->current_network.flags);
1699
1700 if ((rtllib_act_scanning(ieee, false)) &&
1701 !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1702 rtllib_stop_scan_syncro(ieee);
1703
1704 HTResetIOTSetting(ieee->pHTInfo);
1705 ieee->wmm_acm = 0;
1706 if (ieee->iw_mode == IW_MODE_INFRA) {
1707
1708 ieee->AsocRetryCount = 0;
1709 if ((ieee->current_network.qos_data.supported == 1) &&
1710 ieee->current_network.bssht.bdSupportHT)
1711 HTResetSelfAndSavePeerSetting(ieee,
1712 &(ieee->current_network));
1713 else
1714 ieee->pHTInfo->bCurrentHTSupport =
1715 false;
1716
1717 ieee->state = RTLLIB_ASSOCIATING;
1718 if (ieee->LedControlHandler != NULL)
1719 ieee->LedControlHandler(ieee->dev,
1720 LED_CTL_START_TO_LINK);
1721 schedule_delayed_work(
1722 &ieee->associate_procedure_wq, 0);
1723 } else {
1724 if (rtllib_is_54g(&ieee->current_network) &&
1725 (ieee->modulation &
1726 RTLLIB_OFDM_MODULATION)) {
1727 ieee->rate = 108;
1728 ieee->SetWirelessMode(ieee->dev,
1729 IEEE_G);
1730 netdev_info(ieee->dev,
1731 "Using G rates\n");
1732 } else {
1733 ieee->rate = 22;
1734 ieee->SetWirelessMode(ieee->dev,
1735 IEEE_B);
1736 netdev_info(ieee->dev,
1737 "Using B rates\n");
1738 }
1739 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1740 ieee->state = RTLLIB_LINKED;
1741 }
1742 }
1743 }
1744 }
1745
1746 static void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1747 {
1748 unsigned long flags;
1749 struct rtllib_network *target;
1750
1751 spin_lock_irqsave(&ieee->lock, flags);
1752
1753 list_for_each_entry(target, &ieee->network_list, list) {
1754
1755
1756
1757
1758
1759 if (ieee->state != RTLLIB_NOLINK)
1760 break;
1761
1762 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1763 ieee->scan_age, jiffies))
1764 rtllib_softmac_new_net(ieee, target);
1765 }
1766 spin_unlock_irqrestore(&ieee->lock, flags);
1767 }
1768
1769 static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
1770 u8 **challenge, int *chlen)
1771 {
1772 struct rtllib_authentication *a;
1773 u8 *t;
1774
1775 if (skb->len < (sizeof(struct rtllib_authentication) -
1776 sizeof(struct rtllib_info_element))) {
1777 netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
1778 return 0xcafe;
1779 }
1780 *challenge = NULL;
1781 a = (struct rtllib_authentication *) skb->data;
1782 if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
1783 t = skb->data + sizeof(struct rtllib_authentication);
1784
1785 if (*(t++) == MFIE_TYPE_CHALLENGE) {
1786 *chlen = *(t++);
1787 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1788 if (!*challenge)
1789 return -ENOMEM;
1790 }
1791 }
1792 return le16_to_cpu(a->status);
1793 }
1794
1795 static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
1796 {
1797 struct rtllib_authentication *a;
1798
1799 if (skb->len < (sizeof(struct rtllib_authentication) -
1800 sizeof(struct rtllib_info_element))) {
1801 netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
1802 return -1;
1803 }
1804 a = (struct rtllib_authentication *) skb->data;
1805
1806 ether_addr_copy(dest, a->header.addr2);
1807
1808 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1809 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1810
1811 return WLAN_STATUS_SUCCESS;
1812 }
1813
1814 static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1815 u8 *src)
1816 {
1817 u8 *tag;
1818 u8 *skbend;
1819 u8 *ssid = NULL;
1820 u8 ssidlen = 0;
1821 struct rtllib_hdr_3addr *header =
1822 (struct rtllib_hdr_3addr *) skb->data;
1823 bool bssid_match;
1824
1825 if (skb->len < sizeof(struct rtllib_hdr_3addr))
1826 return -1;
1827
1828 bssid_match =
1829 (!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
1830 (!is_broadcast_ether_addr(header->addr3));
1831 if (bssid_match)
1832 return -1;
1833
1834 ether_addr_copy(src, header->addr2);
1835
1836 skbend = (u8 *)skb->data + skb->len;
1837
1838 tag = skb->data + sizeof(struct rtllib_hdr_3addr);
1839
1840 while (tag + 1 < skbend) {
1841 if (*tag == 0) {
1842 ssid = tag + 2;
1843 ssidlen = *(tag + 1);
1844 break;
1845 }
1846 tag++;
1847 tag = tag + *(tag);
1848 tag++;
1849 }
1850
1851 if (ssidlen == 0)
1852 return 1;
1853
1854 if (!ssid)
1855 return 1;
1856
1857 return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
1858 }
1859
1860 static int assoc_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
1861 {
1862 struct rtllib_assoc_request_frame *a;
1863
1864 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1865 sizeof(struct rtllib_info_element))) {
1866 netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
1867 return -1;
1868 }
1869
1870 a = (struct rtllib_assoc_request_frame *) skb->data;
1871
1872 ether_addr_copy(dest, a->header.addr2);
1873
1874 return 0;
1875 }
1876
1877 static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1878 int *aid)
1879 {
1880 struct rtllib_assoc_response_frame *response_head;
1881 u16 status_code;
1882
1883 if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
1884 netdev_dbg(ieee->dev, "Invalid len in auth resp: %d\n",
1885 skb->len);
1886 return 0xcafe;
1887 }
1888
1889 response_head = (struct rtllib_assoc_response_frame *) skb->data;
1890 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1891
1892 status_code = le16_to_cpu(response_head->status);
1893 if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1894 status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
1895 ((ieee->mode == IEEE_G) &&
1896 (ieee->current_network.mode == IEEE_N_24G) &&
1897 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1898 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1899 } else {
1900 ieee->AsocRetryCount = 0;
1901 }
1902
1903 return le16_to_cpu(response_head->status);
1904 }
1905
1906 void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1907 {
1908 u8 dest[ETH_ALEN];
1909
1910 ieee->softmac_stats.rx_probe_rq++;
1911 if (probe_rq_parse(ieee, skb, dest) > 0) {
1912 ieee->softmac_stats.tx_probe_rs++;
1913 rtllib_resp_to_probe(ieee, dest);
1914 }
1915 }
1916
1917 static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1918 struct sk_buff *skb)
1919 {
1920 u8 dest[ETH_ALEN];
1921 int status;
1922
1923 ieee->softmac_stats.rx_auth_rq++;
1924
1925 status = auth_rq_parse(ieee->dev, skb, dest);
1926 if (status != -1)
1927 rtllib_resp_to_auth(ieee, status, dest);
1928 }
1929
1930 static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1931 struct sk_buff *skb)
1932 {
1933 u8 dest[ETH_ALEN];
1934
1935
1936 ieee->softmac_stats.rx_ass_rq++;
1937 if (assoc_rq_parse(ieee->dev, skb, dest) != -1)
1938 rtllib_resp_to_assoc_rq(ieee, dest);
1939
1940 netdev_info(ieee->dev, "New client associated: %pM\n", dest);
1941 }
1942
1943 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1944 {
1945
1946 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1947
1948 if (buf)
1949 softmac_ps_mgmt_xmit(buf, ieee);
1950 }
1951 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
1952
1953 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1954 {
1955 struct sk_buff *buf = rtllib_pspoll_func(ieee);
1956
1957 if (buf)
1958 softmac_ps_mgmt_xmit(buf, ieee);
1959 }
1960
1961 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
1962 {
1963 int timeout;
1964 u8 dtim;
1965 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
1966
1967 if (ieee->LPSDelayCnt) {
1968 ieee->LPSDelayCnt--;
1969 return 0;
1970 }
1971
1972 dtim = ieee->current_network.dtim_data;
1973 if (!(dtim & RTLLIB_DTIM_VALID))
1974 return 0;
1975 timeout = ieee->current_network.beacon_interval;
1976 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
1977
1978
1979
1980 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
1981 return 2;
1982
1983 if (!time_after(jiffies,
1984 dev_trans_start(ieee->dev) + msecs_to_jiffies(timeout)))
1985 return 0;
1986 if (!time_after(jiffies,
1987 ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
1988 return 0;
1989 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
1990 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
1991 return 0;
1992
1993 if (time) {
1994 if (ieee->bAwakePktSent) {
1995 pPSC->LPSAwakeIntvl = 1;
1996 } else {
1997 u8 MaxPeriod = 1;
1998
1999 if (pPSC->LPSAwakeIntvl == 0)
2000 pPSC->LPSAwakeIntvl = 1;
2001 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2002 MaxPeriod = 1;
2003 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2004 MaxPeriod = ieee->current_network.dtim_period;
2005 else
2006 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
2007 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2008 MaxPeriod) ? MaxPeriod :
2009 (pPSC->LPSAwakeIntvl + 1);
2010 }
2011 {
2012 u8 LPSAwakeIntvl_tmp = 0;
2013 u8 period = ieee->current_network.dtim_period;
2014 u8 count = ieee->current_network.tim.tim_count;
2015
2016 if (count == 0) {
2017 if (pPSC->LPSAwakeIntvl > period)
2018 LPSAwakeIntvl_tmp = period +
2019 (pPSC->LPSAwakeIntvl -
2020 period) -
2021 ((pPSC->LPSAwakeIntvl-period) %
2022 period);
2023 else
2024 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2025
2026 } else {
2027 if (pPSC->LPSAwakeIntvl >
2028 ieee->current_network.tim.tim_count)
2029 LPSAwakeIntvl_tmp = count +
2030 (pPSC->LPSAwakeIntvl - count) -
2031 ((pPSC->LPSAwakeIntvl-count)%period);
2032 else
2033 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2034 }
2035
2036 *time = ieee->current_network.last_dtim_sta_time
2037 + msecs_to_jiffies(ieee->current_network.beacon_interval *
2038 LPSAwakeIntvl_tmp);
2039 }
2040 }
2041
2042 return 1;
2043
2044
2045 }
2046
2047 static inline void rtllib_sta_ps(struct rtllib_device *ieee)
2048 {
2049 u64 time;
2050 short sleep;
2051 unsigned long flags, flags2;
2052
2053 spin_lock_irqsave(&ieee->lock, flags);
2054
2055 if ((ieee->ps == RTLLIB_PS_DISABLED ||
2056 ieee->iw_mode != IW_MODE_INFRA ||
2057 ieee->state != RTLLIB_LINKED)) {
2058 RT_TRACE(COMP_DBG,
2059 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2060 __func__, ieee->ps, ieee->iw_mode, ieee->state);
2061 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2062 rtllib_sta_wakeup(ieee, 1);
2063
2064 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2065 }
2066 sleep = rtllib_sta_ps_sleep(ieee, &time);
2067
2068 if (sleep == 0)
2069 goto out;
2070 if (sleep == 1) {
2071 if (ieee->sta_sleep == LPS_IS_SLEEP) {
2072 ieee->enter_sleep_state(ieee->dev, time);
2073 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
2074 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2075
2076 if (ieee->ps_is_queue_empty(ieee->dev)) {
2077 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2078 ieee->ack_tx_to_ieee = 1;
2079 rtllib_sta_ps_send_null_frame(ieee, 1);
2080 ieee->ps_time = time;
2081 }
2082 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2083
2084 }
2085
2086 ieee->bAwakePktSent = false;
2087
2088 } else if (sleep == 2) {
2089 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2090
2091 rtllib_sta_wakeup(ieee, 1);
2092
2093 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2094 }
2095
2096 out:
2097 spin_unlock_irqrestore(&ieee->lock, flags);
2098
2099 }
2100
2101 static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2102 {
2103 if (ieee->sta_sleep == LPS_IS_WAKE) {
2104 if (nl) {
2105 if (ieee->pHTInfo->IOTAction &
2106 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2107 ieee->ack_tx_to_ieee = 1;
2108 rtllib_sta_ps_send_null_frame(ieee, 0);
2109 } else {
2110 ieee->ack_tx_to_ieee = 1;
2111 rtllib_sta_ps_send_pspoll_frame(ieee);
2112 }
2113 }
2114 return;
2115
2116 }
2117
2118 if (ieee->sta_sleep == LPS_IS_SLEEP)
2119 ieee->sta_wake_up(ieee->dev);
2120 if (nl) {
2121 if (ieee->pHTInfo->IOTAction &
2122 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2123 ieee->ack_tx_to_ieee = 1;
2124 rtllib_sta_ps_send_null_frame(ieee, 0);
2125 } else {
2126 ieee->ack_tx_to_ieee = 1;
2127 ieee->polling = true;
2128 rtllib_sta_ps_send_pspoll_frame(ieee);
2129 }
2130
2131 } else {
2132 ieee->sta_sleep = LPS_IS_WAKE;
2133 ieee->polling = false;
2134 }
2135 }
2136
2137 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2138 {
2139 unsigned long flags, flags2;
2140
2141 spin_lock_irqsave(&ieee->lock, flags);
2142
2143 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
2144
2145 if (success) {
2146 ieee->sta_sleep = LPS_IS_SLEEP;
2147 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
2148 }
2149
2150
2151
2152 } else {
2153
2154 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
2155 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2156 if (ieee->pHTInfo->IOTAction &
2157 HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2158 rtllib_sta_ps_send_null_frame(ieee, 0);
2159 else
2160 rtllib_sta_ps_send_pspoll_frame(ieee);
2161 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2162 }
2163 }
2164 spin_unlock_irqrestore(&ieee->lock, flags);
2165 }
2166 EXPORT_SYMBOL(rtllib_ps_tx_ack);
2167
2168 static void rtllib_process_action(struct rtllib_device *ieee,
2169 struct sk_buff *skb)
2170 {
2171 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2172 u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
2173 u8 category = 0;
2174
2175 if (act == NULL) {
2176 netdev_warn(ieee->dev,
2177 "Error getting payload of action frame\n");
2178 return;
2179 }
2180
2181 category = *act;
2182 act++;
2183 switch (category) {
2184 case ACT_CAT_BA:
2185 switch (*act) {
2186 case ACT_ADDBAREQ:
2187 rtllib_rx_ADDBAReq(ieee, skb);
2188 break;
2189 case ACT_ADDBARSP:
2190 rtllib_rx_ADDBARsp(ieee, skb);
2191 break;
2192 case ACT_DELBA:
2193 rtllib_rx_DELBA(ieee, skb);
2194 break;
2195 }
2196 break;
2197 default:
2198 break;
2199 }
2200 }
2201
2202 static inline int
2203 rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2204 struct rtllib_rx_stats *rx_stats)
2205 {
2206 u16 errcode;
2207 int aid;
2208 u8 *ies;
2209 struct rtllib_assoc_response_frame *assoc_resp;
2210 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2211 u16 frame_ctl = le16_to_cpu(header->frame_ctl);
2212
2213 netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
2214 WLAN_FC_GET_STYPE(frame_ctl));
2215
2216 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2217 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2218 (ieee->iw_mode == IW_MODE_INFRA)) {
2219 errcode = assoc_parse(ieee, skb, &aid);
2220 if (!errcode) {
2221 struct rtllib_network *network =
2222 kzalloc(sizeof(struct rtllib_network),
2223 GFP_ATOMIC);
2224
2225 if (!network)
2226 return 1;
2227 ieee->state = RTLLIB_LINKED;
2228 ieee->assoc_id = aid;
2229 ieee->softmac_stats.rx_ass_ok++;
2230
2231
2232 assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
2233 if (ieee->current_network.qos_data.supported == 1) {
2234 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2235 rx_stats->len - sizeof(*assoc_resp),
2236 network, rx_stats)) {
2237 kfree(network);
2238 return 1;
2239 }
2240 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2241 network->bssht.bdHTCapBuf,
2242 network->bssht.bdHTCapLen);
2243 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2244 network->bssht.bdHTInfoBuf,
2245 network->bssht.bdHTInfoLen);
2246 if (ieee->handle_assoc_response != NULL)
2247 ieee->handle_assoc_response(ieee->dev,
2248 (struct rtllib_assoc_response_frame *)header,
2249 network);
2250 }
2251 kfree(network);
2252
2253 kfree(ieee->assocresp_ies);
2254 ieee->assocresp_ies = NULL;
2255 ies = &(assoc_resp->info_element[0].id);
2256 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
2257 ieee->assocresp_ies = kmemdup(ies,
2258 ieee->assocresp_ies_len,
2259 GFP_ATOMIC);
2260 if (!ieee->assocresp_ies)
2261 ieee->assocresp_ies_len = 0;
2262
2263 rtllib_associate_complete(ieee);
2264 } else {
2265
2266 ieee->softmac_stats.rx_ass_err++;
2267 netdev_info(ieee->dev,
2268 "Association response status code 0x%x\n",
2269 errcode);
2270 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
2271 schedule_delayed_work(
2272 &ieee->associate_procedure_wq, 0);
2273 else
2274 rtllib_associate_abort(ieee);
2275 }
2276 }
2277 return 0;
2278 }
2279
2280 static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
2281 {
2282 u16 errcode;
2283 u8 *challenge;
2284 int chlen = 0;
2285 bool bSupportNmode = true, bHalfSupportNmode = false;
2286
2287 errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
2288
2289 if (errcode) {
2290 ieee->softmac_stats.rx_auth_rs_err++;
2291 netdev_info(ieee->dev,
2292 "Authentication response status code 0x%x",
2293 errcode);
2294 rtllib_associate_abort(ieee);
2295 return;
2296 }
2297
2298 if (ieee->open_wep || !challenge) {
2299 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2300 ieee->softmac_stats.rx_auth_rs_ok++;
2301 if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
2302 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2303 if (IsHTHalfNmodeAPs(ieee)) {
2304 bSupportNmode = true;
2305 bHalfSupportNmode = true;
2306 } else {
2307 bSupportNmode = false;
2308 bHalfSupportNmode = false;
2309 }
2310 }
2311 }
2312
2313 if (bSupportNmode) {
2314 ieee->SetWirelessMode(ieee->dev,
2315 ieee->current_network.mode);
2316 } else {
2317
2318 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2319 }
2320
2321 if ((ieee->current_network.mode == IEEE_N_24G) &&
2322 bHalfSupportNmode) {
2323 netdev_info(ieee->dev, "======>enter half N mode\n");
2324 ieee->bHalfWirelessN24GMode = true;
2325 } else {
2326 ieee->bHalfWirelessN24GMode = false;
2327 }
2328 rtllib_associate_step2(ieee);
2329 } else {
2330 rtllib_auth_challenge(ieee, challenge, chlen);
2331 }
2332 }
2333
2334 static inline int
2335 rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2336 struct rtllib_rx_stats *rx_stats)
2337 {
2338
2339 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2340 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2341 (ieee->iw_mode == IW_MODE_INFRA)) {
2342 netdev_dbg(ieee->dev,
2343 "Received authentication response");
2344 rtllib_rx_auth_resp(ieee, skb);
2345 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2346 rtllib_rx_auth_rq(ieee, skb);
2347 }
2348 }
2349 return 0;
2350 }
2351
2352 static inline int
2353 rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2354 {
2355 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2356 u16 frame_ctl;
2357
2358 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2359 return 0;
2360
2361
2362
2363
2364 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2365 ieee->state == RTLLIB_LINKED &&
2366 (ieee->iw_mode == IW_MODE_INFRA)) {
2367 frame_ctl = le16_to_cpu(header->frame_ctl);
2368 netdev_info(ieee->dev,
2369 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
2370 WLAN_FC_GET_STYPE(frame_ctl),
2371 ((struct rtllib_disassoc *)skb->data)->reason);
2372 ieee->state = RTLLIB_ASSOCIATING;
2373 ieee->softmac_stats.reassoc++;
2374 ieee->is_roaming = true;
2375 ieee->LinkDetectInfo.bBusyTraffic = false;
2376 rtllib_disassociate(ieee);
2377 RemovePeerTS(ieee, header->addr2);
2378 if (ieee->LedControlHandler != NULL)
2379 ieee->LedControlHandler(ieee->dev,
2380 LED_CTL_START_TO_LINK);
2381
2382 if (!(ieee->rtllib_ap_sec_type(ieee) &
2383 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
2384 schedule_delayed_work(
2385 &ieee->associate_procedure_wq, 5);
2386 }
2387 return 0;
2388 }
2389
2390 inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2391 struct sk_buff *skb,
2392 struct rtllib_rx_stats *rx_stats, u16 type,
2393 u16 stype)
2394 {
2395 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2396 u16 frame_ctl;
2397
2398 if (!ieee->proto_started)
2399 return 0;
2400
2401 frame_ctl = le16_to_cpu(header->frame_ctl);
2402 switch (WLAN_FC_GET_STYPE(frame_ctl)) {
2403 case RTLLIB_STYPE_ASSOC_RESP:
2404 case RTLLIB_STYPE_REASSOC_RESP:
2405 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2406 return 1;
2407 break;
2408 case RTLLIB_STYPE_ASSOC_REQ:
2409 case RTLLIB_STYPE_REASSOC_REQ:
2410 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2411 ieee->iw_mode == IW_MODE_MASTER)
2412 rtllib_rx_assoc_rq(ieee, skb);
2413 break;
2414 case RTLLIB_STYPE_AUTH:
2415 rtllib_rx_auth(ieee, skb, rx_stats);
2416 break;
2417 case RTLLIB_STYPE_DISASSOC:
2418 case RTLLIB_STYPE_DEAUTH:
2419 rtllib_rx_deauth(ieee, skb);
2420 break;
2421 case RTLLIB_STYPE_MANAGE_ACT:
2422 rtllib_process_action(ieee, skb);
2423 break;
2424 default:
2425 return -1;
2426 }
2427 return 0;
2428 }
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2449 {
2450
2451 unsigned int queue_index = txb->queue_index;
2452 unsigned long flags;
2453 int i;
2454 struct cb_desc *tcb_desc = NULL;
2455 unsigned long queue_len = 0;
2456
2457 spin_lock_irqsave(&ieee->lock, flags);
2458
2459
2460 rtllib_sta_wakeup(ieee, 0);
2461
2462
2463 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2464 MAX_DEV_ADDR_SIZE);
2465 if (tcb_desc->bMulticast)
2466 ieee->stats.multicast++;
2467
2468
2469
2470
2471 for (i = 0; i < txb->nr_frags; i++) {
2472 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
2473 if ((queue_len != 0) ||
2474 (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2475 (ieee->queue_stop)) {
2476
2477
2478
2479
2480 if (queue_len < 200)
2481 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2482 txb->fragments[i]);
2483 else
2484 kfree_skb(txb->fragments[i]);
2485 } else {
2486 ieee->softmac_data_hard_start_xmit(
2487 txb->fragments[i],
2488 ieee->dev, ieee->rate);
2489 }
2490 }
2491
2492 rtllib_txb_free(txb);
2493
2494 spin_unlock_irqrestore(&ieee->lock, flags);
2495
2496 }
2497
2498 void rtllib_reset_queue(struct rtllib_device *ieee)
2499 {
2500 unsigned long flags;
2501
2502 spin_lock_irqsave(&ieee->lock, flags);
2503 init_mgmt_queue(ieee);
2504 if (ieee->tx_pending.txb) {
2505 rtllib_txb_free(ieee->tx_pending.txb);
2506 ieee->tx_pending.txb = NULL;
2507 }
2508 ieee->queue_stop = 0;
2509 spin_unlock_irqrestore(&ieee->lock, flags);
2510
2511 }
2512 EXPORT_SYMBOL(rtllib_reset_queue);
2513
2514 void rtllib_stop_all_queues(struct rtllib_device *ieee)
2515 {
2516 unsigned int i;
2517
2518 for (i = 0; i < ieee->dev->num_tx_queues; i++)
2519 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
2520
2521 netif_tx_stop_all_queues(ieee->dev);
2522 }
2523
2524 void rtllib_wake_all_queues(struct rtllib_device *ieee)
2525 {
2526 netif_tx_wake_all_queues(ieee->dev);
2527 }
2528
2529
2530 static void rtllib_start_master_bss(struct rtllib_device *ieee)
2531 {
2532 ieee->assoc_id = 1;
2533
2534 if (ieee->current_network.ssid_len == 0) {
2535 strncpy(ieee->current_network.ssid,
2536 RTLLIB_DEFAULT_TX_ESSID,
2537 IW_ESSID_MAX_SIZE);
2538
2539 ieee->current_network.ssid_len =
2540 strlen(RTLLIB_DEFAULT_TX_ESSID);
2541 ieee->ssid_set = 1;
2542 }
2543
2544 ether_addr_copy(ieee->current_network.bssid, ieee->dev->dev_addr);
2545
2546 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2547 ieee->state = RTLLIB_LINKED;
2548 ieee->link_change(ieee->dev);
2549 notify_wx_assoc_event(ieee);
2550
2551 if (ieee->data_hard_resume)
2552 ieee->data_hard_resume(ieee->dev);
2553
2554 netif_carrier_on(ieee->dev);
2555 }
2556
2557 static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
2558 {
2559
2560 if (ieee->raw_tx) {
2561 if (ieee->data_hard_resume)
2562 ieee->data_hard_resume(ieee->dev);
2563
2564 netif_carrier_on(ieee->dev);
2565 }
2566 }
2567
2568 static void rtllib_start_ibss_wq(void *data)
2569 {
2570 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2571 struct rtllib_device, start_ibss_wq);
2572
2573
2574
2575
2576
2577
2578
2579 if (!ieee->proto_started) {
2580 netdev_info(ieee->dev, "==========oh driver down return\n");
2581 return;
2582 }
2583 mutex_lock(&ieee->wx_mutex);
2584
2585 if (ieee->current_network.ssid_len == 0) {
2586 strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
2587 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2588 ieee->ssid_set = 1;
2589 }
2590
2591 ieee->state = RTLLIB_NOLINK;
2592 ieee->mode = IEEE_G;
2593
2594 rtllib_softmac_check_all_nets(ieee);
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611 if (ieee->state == RTLLIB_NOLINK)
2612 rtllib_start_scan_syncro(ieee, 0);
2613
2614
2615 if (ieee->state == RTLLIB_NOLINK) {
2616 netdev_info(ieee->dev, "creating new IBSS cell\n");
2617 ieee->current_network.channel = ieee->bss_start_channel;
2618 if (!ieee->wap_set)
2619 eth_random_addr(ieee->current_network.bssid);
2620
2621 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
2622
2623 ieee->current_network.rates_len = 4;
2624
2625 ieee->current_network.rates[0] =
2626 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2627 ieee->current_network.rates[1] =
2628 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2629 ieee->current_network.rates[2] =
2630 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2631 ieee->current_network.rates[3] =
2632 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
2633
2634 } else
2635 ieee->current_network.rates_len = 0;
2636
2637 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
2638 ieee->current_network.rates_ex_len = 8;
2639
2640 ieee->current_network.rates_ex[0] =
2641 RTLLIB_OFDM_RATE_6MB;
2642 ieee->current_network.rates_ex[1] =
2643 RTLLIB_OFDM_RATE_9MB;
2644 ieee->current_network.rates_ex[2] =
2645 RTLLIB_OFDM_RATE_12MB;
2646 ieee->current_network.rates_ex[3] =
2647 RTLLIB_OFDM_RATE_18MB;
2648 ieee->current_network.rates_ex[4] =
2649 RTLLIB_OFDM_RATE_24MB;
2650 ieee->current_network.rates_ex[5] =
2651 RTLLIB_OFDM_RATE_36MB;
2652 ieee->current_network.rates_ex[6] =
2653 RTLLIB_OFDM_RATE_48MB;
2654 ieee->current_network.rates_ex[7] =
2655 RTLLIB_OFDM_RATE_54MB;
2656
2657 ieee->rate = 108;
2658 } else {
2659 ieee->current_network.rates_ex_len = 0;
2660 ieee->rate = 22;
2661 }
2662
2663 ieee->current_network.qos_data.supported = 0;
2664 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2665 ieee->current_network.mode = ieee->mode;
2666 ieee->current_network.atim_window = 0;
2667 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2668 }
2669
2670 netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
2671 if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2672 HTUseDefaultSetting(ieee);
2673 else
2674 ieee->pHTInfo->bCurrentHTSupport = false;
2675
2676 ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
2677 (u8 *)(&ieee->state));
2678
2679 ieee->state = RTLLIB_LINKED;
2680 ieee->link_change(ieee->dev);
2681
2682 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2683 if (ieee->LedControlHandler != NULL)
2684 ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
2685
2686 rtllib_start_send_beacons(ieee);
2687
2688 notify_wx_assoc_event(ieee);
2689
2690 if (ieee->data_hard_resume)
2691 ieee->data_hard_resume(ieee->dev);
2692
2693 netif_carrier_on(ieee->dev);
2694
2695 mutex_unlock(&ieee->wx_mutex);
2696 }
2697
2698 inline void rtllib_start_ibss(struct rtllib_device *ieee)
2699 {
2700 schedule_delayed_work(&ieee->start_ibss_wq, msecs_to_jiffies(150));
2701 }
2702
2703
2704 static void rtllib_start_bss(struct rtllib_device *ieee)
2705 {
2706 unsigned long flags;
2707
2708 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2709 if (!ieee->global_domain)
2710 return;
2711 }
2712
2713
2714
2715
2716
2717 rtllib_softmac_check_all_nets(ieee);
2718
2719
2720
2721
2722
2723
2724
2725
2726 spin_lock_irqsave(&ieee->lock, flags);
2727
2728 if (ieee->state == RTLLIB_NOLINK)
2729 rtllib_start_scan(ieee);
2730 spin_unlock_irqrestore(&ieee->lock, flags);
2731 }
2732
2733 static void rtllib_link_change_wq(void *data)
2734 {
2735 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2736 struct rtllib_device, link_change_wq);
2737 ieee->link_change(ieee->dev);
2738 }
2739
2740 void rtllib_disassociate(struct rtllib_device *ieee)
2741 {
2742 netif_carrier_off(ieee->dev);
2743 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2744 rtllib_reset_queue(ieee);
2745
2746 if (ieee->data_hard_stop)
2747 ieee->data_hard_stop(ieee->dev);
2748 if (IS_DOT11D_ENABLE(ieee))
2749 dot11d_reset(ieee);
2750 ieee->state = RTLLIB_NOLINK;
2751 ieee->is_set_key = false;
2752 ieee->wap_set = 0;
2753
2754 schedule_delayed_work(&ieee->link_change_wq, 0);
2755
2756 notify_wx_assoc_event(ieee);
2757 }
2758
2759 static void rtllib_associate_retry_wq(void *data)
2760 {
2761 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2762 struct rtllib_device, associate_retry_wq);
2763 unsigned long flags;
2764
2765 mutex_lock(&ieee->wx_mutex);
2766 if (!ieee->proto_started)
2767 goto exit;
2768
2769 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2770 goto exit;
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785 ieee->beinretry = true;
2786 ieee->state = RTLLIB_NOLINK;
2787
2788 rtllib_softmac_check_all_nets(ieee);
2789
2790 spin_lock_irqsave(&ieee->lock, flags);
2791
2792 if (ieee->state == RTLLIB_NOLINK)
2793 rtllib_start_scan(ieee);
2794 spin_unlock_irqrestore(&ieee->lock, flags);
2795
2796 ieee->beinretry = false;
2797 exit:
2798 mutex_unlock(&ieee->wx_mutex);
2799 }
2800
2801 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2802 {
2803 static const u8 broadcast_addr[] = {
2804 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2805 };
2806 struct sk_buff *skb;
2807 struct rtllib_probe_response *b;
2808
2809 skb = rtllib_probe_resp(ieee, broadcast_addr);
2810
2811 if (!skb)
2812 return NULL;
2813
2814 b = (struct rtllib_probe_response *) skb->data;
2815 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2816
2817 return skb;
2818
2819 }
2820
2821 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2822 {
2823 struct sk_buff *skb;
2824 struct rtllib_probe_response *b;
2825
2826 skb = rtllib_get_beacon_(ieee);
2827 if (!skb)
2828 return NULL;
2829
2830 b = (struct rtllib_probe_response *) skb->data;
2831 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2832
2833 if (ieee->seq_ctrl[0] == 0xFFF)
2834 ieee->seq_ctrl[0] = 0;
2835 else
2836 ieee->seq_ctrl[0]++;
2837
2838 return skb;
2839 }
2840 EXPORT_SYMBOL(rtllib_get_beacon);
2841
2842 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2843 u8 shutdown)
2844 {
2845 rtllib_stop_scan_syncro(ieee);
2846 mutex_lock(&ieee->wx_mutex);
2847 rtllib_stop_protocol(ieee, shutdown);
2848 mutex_unlock(&ieee->wx_mutex);
2849 }
2850 EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
2851
2852
2853 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2854 {
2855 if (!ieee->proto_started)
2856 return;
2857
2858 if (shutdown) {
2859 ieee->proto_started = 0;
2860 ieee->proto_stoppping = 1;
2861 if (ieee->rtllib_ips_leave != NULL)
2862 ieee->rtllib_ips_leave(ieee->dev);
2863 }
2864
2865 rtllib_stop_send_beacons(ieee);
2866 del_timer_sync(&ieee->associate_timer);
2867 cancel_delayed_work_sync(&ieee->associate_retry_wq);
2868 cancel_delayed_work_sync(&ieee->start_ibss_wq);
2869 cancel_delayed_work_sync(&ieee->link_change_wq);
2870 rtllib_stop_scan(ieee);
2871
2872 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2873 ieee->state = RTLLIB_NOLINK;
2874
2875 if (ieee->state == RTLLIB_LINKED) {
2876 if (ieee->iw_mode == IW_MODE_INFRA)
2877 SendDisassociation(ieee, 1, WLAN_REASON_DEAUTH_LEAVING);
2878 rtllib_disassociate(ieee);
2879 }
2880
2881 if (shutdown) {
2882 RemoveAllTS(ieee);
2883 ieee->proto_stoppping = 0;
2884 }
2885 kfree(ieee->assocreq_ies);
2886 ieee->assocreq_ies = NULL;
2887 ieee->assocreq_ies_len = 0;
2888 kfree(ieee->assocresp_ies);
2889 ieee->assocresp_ies = NULL;
2890 ieee->assocresp_ies_len = 0;
2891 }
2892
2893 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
2894 {
2895 mutex_lock(&ieee->wx_mutex);
2896 rtllib_start_protocol(ieee);
2897 mutex_unlock(&ieee->wx_mutex);
2898 }
2899 EXPORT_SYMBOL(rtllib_softmac_start_protocol);
2900
2901 void rtllib_start_protocol(struct rtllib_device *ieee)
2902 {
2903 short ch = 0;
2904 int i = 0;
2905
2906 rtllib_update_active_chan_map(ieee);
2907
2908 if (ieee->proto_started)
2909 return;
2910
2911 ieee->proto_started = 1;
2912
2913 if (ieee->current_network.channel == 0) {
2914 do {
2915 ch++;
2916 if (ch > MAX_CHANNEL_NUMBER)
2917 return;
2918 } while (!ieee->active_channel_map[ch]);
2919 ieee->current_network.channel = ch;
2920 }
2921
2922 if (ieee->current_network.beacon_interval == 0)
2923 ieee->current_network.beacon_interval = 100;
2924
2925 for (i = 0; i < 17; i++) {
2926 ieee->last_rxseq_num[i] = -1;
2927 ieee->last_rxfrag_num[i] = -1;
2928 ieee->last_packet_time[i] = 0;
2929 }
2930
2931 if (ieee->UpdateBeaconInterruptHandler)
2932 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
2933
2934 ieee->wmm_acm = 0;
2935
2936
2937
2938
2939
2940 if (ieee->iw_mode == IW_MODE_INFRA) {
2941 rtllib_start_bss(ieee);
2942 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
2943 if (ieee->UpdateBeaconInterruptHandler)
2944 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
2945
2946 rtllib_start_ibss(ieee);
2947
2948 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2949 rtllib_start_master_bss(ieee);
2950 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
2951 rtllib_start_monitor_mode(ieee);
2952 }
2953 }
2954
2955 void rtllib_softmac_init(struct rtllib_device *ieee)
2956 {
2957 int i;
2958
2959 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
2960
2961 ieee->state = RTLLIB_NOLINK;
2962 for (i = 0; i < 5; i++)
2963 ieee->seq_ctrl[i] = 0;
2964 ieee->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
2965 if (!ieee->dot11d_info)
2966 netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
2967 ieee->LinkDetectInfo.SlotIndex = 0;
2968 ieee->LinkDetectInfo.SlotNum = 2;
2969 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
2970 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
2971 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
2972 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
2973 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
2974 ieee->bIsAggregateFrame = false;
2975 ieee->assoc_id = 0;
2976 ieee->queue_stop = 0;
2977 ieee->scanning_continue = 0;
2978 ieee->softmac_features = 0;
2979 ieee->wap_set = 0;
2980 ieee->ssid_set = 0;
2981 ieee->proto_started = 0;
2982 ieee->proto_stoppping = 0;
2983 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
2984 ieee->rate = 22;
2985 ieee->ps = RTLLIB_PS_DISABLED;
2986 ieee->sta_sleep = LPS_IS_WAKE;
2987
2988 ieee->Regdot11HTOperationalRateSet[0] = 0xff;
2989 ieee->Regdot11HTOperationalRateSet[1] = 0xff;
2990 ieee->Regdot11HTOperationalRateSet[4] = 0x01;
2991
2992 ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
2993 ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
2994 ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
2995
2996 ieee->FirstIe_InScan = false;
2997 ieee->actscanning = false;
2998 ieee->beinretry = false;
2999 ieee->is_set_key = false;
3000 init_mgmt_queue(ieee);
3001
3002 ieee->tx_pending.txb = NULL;
3003
3004 timer_setup(&ieee->associate_timer, rtllib_associate_abort_cb, 0);
3005
3006 timer_setup(&ieee->beacon_timer, rtllib_send_beacon_cb, 0);
3007
3008 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3009 (void *)rtllib_link_change_wq, ieee);
3010 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3011 (void *)rtllib_start_ibss_wq, ieee);
3012 INIT_WORK_RSL(&ieee->associate_complete_wq,
3013 (void *)rtllib_associate_complete_wq, ieee);
3014 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3015 (void *)rtllib_associate_procedure_wq, ieee);
3016 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3017 (void *)rtllib_softmac_scan_wq, ieee);
3018 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3019 (void *)rtllib_associate_retry_wq, ieee);
3020 INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3021 ieee);
3022
3023 mutex_init(&ieee->wx_mutex);
3024 mutex_init(&ieee->scan_mutex);
3025 mutex_init(&ieee->ips_mutex);
3026
3027 spin_lock_init(&ieee->mgmt_tx_lock);
3028 spin_lock_init(&ieee->beacon_lock);
3029
3030 tasklet_init(&ieee->ps_task,
3031 (void(*)(unsigned long)) rtllib_sta_ps,
3032 (unsigned long)ieee);
3033
3034 }
3035
3036 void rtllib_softmac_free(struct rtllib_device *ieee)
3037 {
3038 mutex_lock(&ieee->wx_mutex);
3039 kfree(ieee->dot11d_info);
3040 ieee->dot11d_info = NULL;
3041 del_timer_sync(&ieee->associate_timer);
3042
3043 cancel_delayed_work_sync(&ieee->associate_retry_wq);
3044 cancel_delayed_work_sync(&ieee->associate_procedure_wq);
3045 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
3046 cancel_delayed_work_sync(&ieee->start_ibss_wq);
3047 cancel_delayed_work_sync(&ieee->hw_wakeup_wq);
3048 cancel_delayed_work_sync(&ieee->hw_sleep_wq);
3049 cancel_delayed_work_sync(&ieee->link_change_wq);
3050 cancel_work_sync(&ieee->associate_complete_wq);
3051 cancel_work_sync(&ieee->ips_leave_wq);
3052 cancel_work_sync(&ieee->wx_sync_scan_wq);
3053 mutex_unlock(&ieee->wx_mutex);
3054 tasklet_kill(&ieee->ps_task);
3055 }
3056
3057 static inline struct sk_buff *
3058 rtllib_disauth_skb(struct rtllib_network *beacon,
3059 struct rtllib_device *ieee, u16 asRsn)
3060 {
3061 struct sk_buff *skb;
3062 struct rtllib_disauth *disauth;
3063 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3064
3065 skb = dev_alloc_skb(len);
3066 if (!skb)
3067 return NULL;
3068
3069 skb_reserve(skb, ieee->tx_headroom);
3070
3071 disauth = skb_put(skb, sizeof(struct rtllib_disauth));
3072 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3073 disauth->header.duration_id = 0;
3074
3075 ether_addr_copy(disauth->header.addr1, beacon->bssid);
3076 ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
3077 ether_addr_copy(disauth->header.addr3, beacon->bssid);
3078
3079 disauth->reason = cpu_to_le16(asRsn);
3080 return skb;
3081 }
3082
3083 static inline struct sk_buff *
3084 rtllib_disassociate_skb(struct rtllib_network *beacon,
3085 struct rtllib_device *ieee, u16 asRsn)
3086 {
3087 struct sk_buff *skb;
3088 struct rtllib_disassoc *disass;
3089 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3090
3091 skb = dev_alloc_skb(len);
3092
3093 if (!skb)
3094 return NULL;
3095
3096 skb_reserve(skb, ieee->tx_headroom);
3097
3098 disass = skb_put(skb, sizeof(struct rtllib_disassoc));
3099 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3100 disass->header.duration_id = 0;
3101
3102 ether_addr_copy(disass->header.addr1, beacon->bssid);
3103 ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
3104 ether_addr_copy(disass->header.addr3, beacon->bssid);
3105
3106 disass->reason = cpu_to_le16(asRsn);
3107 return skb;
3108 }
3109
3110 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3111 {
3112 struct rtllib_network *beacon = &ieee->current_network;
3113 struct sk_buff *skb;
3114
3115 if (deauth)
3116 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3117 else
3118 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
3119
3120 if (skb)
3121 softmac_mgmt_xmit(skb, ieee);
3122 }
3123
3124 u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3125 {
3126 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
3127 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
3128 int wpa_ie_len = ieee->wpa_ie_len;
3129 struct lib80211_crypt_data *crypt;
3130 int encrypt;
3131
3132 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
3133 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3134 || (ieee->host_encrypt && crypt && crypt->ops &&
3135 (strcmp(crypt->ops->name, "R-WEP") == 0));
3136
3137
3138 if (encrypt && (wpa_ie_len == 0)) {
3139 return SEC_ALG_WEP;
3140 } else if ((wpa_ie_len != 0)) {
3141 if (((ieee->wpa_ie[0] == 0xdd) &&
3142 (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3143 ((ieee->wpa_ie[0] == 0x30) &&
3144 (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
3145 return SEC_ALG_CCMP;
3146 else
3147 return SEC_ALG_TKIP;
3148 } else {
3149 return SEC_ALG_NONE;
3150 }
3151 }
3152
3153 static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
3154 {
3155 u8 OpMode;
3156 u8 i;
3157 bool bFilterOutNonAssociatedBSSID = false;
3158
3159 rtllib->state = RTLLIB_NOLINK;
3160
3161 for (i = 0; i < 6; i++)
3162 rtllib->current_network.bssid[i] = 0x55;
3163
3164 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3165 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3166 rtllib->current_network.bssid);
3167 OpMode = RT_OP_MODE_NO_LINK;
3168 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3169 rtllib_stop_send_beacons(rtllib);
3170
3171 bFilterOutNonAssociatedBSSID = false;
3172 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3173 (u8 *)(&bFilterOutNonAssociatedBSSID));
3174 notify_wx_assoc_event(rtllib);
3175
3176 }
3177
3178 static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
3179 u8 *asSta, u8 asRsn)
3180 {
3181 u8 i;
3182 u8 OpMode;
3183
3184 RemovePeerTS(rtllib, asSta);
3185
3186 if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
3187 rtllib->state = RTLLIB_NOLINK;
3188
3189 for (i = 0; i < 6; i++)
3190 rtllib->current_network.bssid[i] = 0x22;
3191 OpMode = RT_OP_MODE_NO_LINK;
3192 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3193 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3194 (u8 *)(&OpMode));
3195 rtllib_disassociate(rtllib);
3196
3197 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3198 rtllib->current_network.bssid);
3199
3200 }
3201
3202 }
3203
3204 static void
3205 rtllib_MgntDisconnectAP(
3206 struct rtllib_device *rtllib,
3207 u8 asRsn
3208 )
3209 {
3210 bool bFilterOutNonAssociatedBSSID = false;
3211
3212 bFilterOutNonAssociatedBSSID = false;
3213 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3214 (u8 *)(&bFilterOutNonAssociatedBSSID));
3215 rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3216 asRsn);
3217
3218 rtllib->state = RTLLIB_NOLINK;
3219 }
3220
3221 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
3222 {
3223 if (rtllib->ps != RTLLIB_PS_DISABLED)
3224 rtllib->sta_wake_up(rtllib->dev);
3225
3226 if (rtllib->state == RTLLIB_LINKED) {
3227 if (rtllib->iw_mode == IW_MODE_ADHOC)
3228 rtllib_MgntDisconnectIBSS(rtllib);
3229 if (rtllib->iw_mode == IW_MODE_INFRA)
3230 rtllib_MgntDisconnectAP(rtllib, asRsn);
3231
3232 }
3233
3234 return true;
3235 }
3236 EXPORT_SYMBOL(rtllib_MgntDisconnect);
3237
3238 void notify_wx_assoc_event(struct rtllib_device *ieee)
3239 {
3240 union iwreq_data wrqu;
3241
3242 if (ieee->cannot_notify)
3243 return;
3244
3245 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3246 if (ieee->state == RTLLIB_LINKED)
3247 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3248 ETH_ALEN);
3249 else {
3250
3251 netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
3252 __func__);
3253 eth_zero_addr(wrqu.ap_addr.sa_data);
3254 }
3255 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3256 }
3257 EXPORT_SYMBOL(notify_wx_assoc_event);