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staging: rtl8192e: Modify time handling
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / rtl8192e / rtllib_softmac.c
blob29277d18f0216c470b057e73b32ee3b8f0a5877a
1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
3 *
4 * Mostly extracted from the rtl8180-sa2400 driver for the
5 * in-kernel generic ieee802.11 stack.
6 *
7 * Few lines might be stolen from other part of the rtllib
8 * stack. Copyright who own it's copyright
9 *
10 * WPA code stolen from the ipw2200 driver.
11 * Copyright who own it's copyright.
12 *
13 * released under the GPL
14 */
15
16
17 #include "rtllib.h"
18 #include "rtl_core.h"
19
20 #include <linux/random.h>
21 #include <linux/delay.h>
22 #include <linux/version.h>
23 #include <asm/uaccess.h>
24 #include "dot11d.h"
25
26 extern void _setup_timer( struct timer_list*, void*, unsigned long );
27 u8 rsn_authen_cipher_suite[16][4] = {
28 {0x00,0x0F,0xAC,0x00},
29 {0x00,0x0F,0xAC,0x01},
30 {0x00,0x0F,0xAC,0x02},
31 {0x00,0x0F,0xAC,0x03},
32 {0x00,0x0F,0xAC,0x04},
33 {0x00,0x0F,0xAC,0x05},
34 };
35
36 short rtllib_is_54g(struct rtllib_network *net)
37 {
38 return ((net->rates_ex_len > 0) || (net->rates_len > 4));
39 }
40
41 short rtllib_is_shortslot(struct rtllib_network net)
42 {
43 return (net.capability & WLAN_CAPABILITY_SHORT_SLOT_TIME);
44 }
45
46 /* returns the total length needed for pleacing the RATE MFIE
47 * tag and the EXTENDED RATE MFIE tag if needed.
48 * It encludes two bytes per tag for the tag itself and its len
49 */
50 unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
51 {
52 unsigned int rate_len = 0;
53
54 if (ieee->modulation & RTLLIB_CCK_MODULATION)
55 rate_len = RTLLIB_CCK_RATE_LEN + 2;
56
57 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
58
59 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
60
61 return rate_len;
62 }
63
64 /* pleace the MFIE rate, tag to the memory (double) poined.
65 * Then it updates the pointer so that
66 * it points after the new MFIE tag added.
67 */
68 void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
69 {
70 u8 *tag = *tag_p;
71
72 if (ieee->modulation & RTLLIB_CCK_MODULATION){
73 *tag++ = MFIE_TYPE_RATES;
74 *tag++ = 4;
75 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
76 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
77 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
78 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
79 }
80
81 /* We may add an option for custom rates that specific HW might support */
82 *tag_p = tag;
83 }
84
85 void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
86 {
87 u8 *tag = *tag_p;
88
89 if (ieee->modulation & RTLLIB_OFDM_MODULATION){
90
91 *tag++ = MFIE_TYPE_RATES_EX;
92 *tag++ = 8;
93 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
94 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
95 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
96 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
97 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
98 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
99 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
100 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
101
102 }
103
104 /* We may add an option for custom rates that specific HW might support */
105 *tag_p = tag;
106 }
107
108 void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p) {
109 u8 *tag = *tag_p;
110
111 *tag++ = MFIE_TYPE_GENERIC;
112 *tag++ = 7;
113 *tag++ = 0x00;
114 *tag++ = 0x50;
115 *tag++ = 0xf2;
116 *tag++ = 0x02;
117 *tag++ = 0x00;
118 *tag++ = 0x01;
119 *tag++ = MAX_SP_Len;
120 *tag_p = tag;
121 }
122
123 void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p) {
124 u8 *tag = *tag_p;
125
126 *tag++ = MFIE_TYPE_GENERIC;
127 *tag++ = 7;
128 *tag++ = 0x00;
129 *tag++ = 0xe0;
130 *tag++ = 0x4c;
131 *tag++ = 0x01;
132 *tag++ = 0x02;
133 *tag++ = 0x11;
134 *tag++ = 0x00;
135
136 *tag_p = tag;
137 printk(KERN_ALERT "This is enable turbo mode IE process\n");
138 }
139
140 void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
141 {
142 int nh;
143 nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM;
144
145 /*
146 * if the queue is full but we have newer frames then
147 * just overwrites the oldest.
148 *
149 * if (nh == ieee->mgmt_queue_tail)
150 * return -1;
151 */
152 ieee->mgmt_queue_head = nh;
153 ieee->mgmt_queue_ring[nh] = skb;
154
155 }
156
157 struct sk_buff *dequeue_mgmt(struct rtllib_device *ieee)
158 {
159 struct sk_buff *ret;
160
161 if (ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
162 return NULL;
163
164 ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
165
166 ieee->mgmt_queue_tail =
167 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
168
169 return ret;
170 }
171
172 void init_mgmt_queue(struct rtllib_device *ieee)
173 {
174 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
175 }
176
177
178 u8
179 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
180 {
181 u16 i;
182 u8 QueryRate = 0;
183 u8 BasicRate;
184
185
186 for ( i = 0; i < ieee->current_network.rates_len; i++)
187 {
188 BasicRate = ieee->current_network.rates[i]&0x7F;
189 if (!rtllib_is_cck_rate(BasicRate))
190 {
191 if (QueryRate == 0)
192 {
193 QueryRate = BasicRate;
194 }
195 else
196 {
197 if (BasicRate < QueryRate)
198 {
199 QueryRate = BasicRate;
200 }
201 }
202 }
203 }
204
205 if (QueryRate == 0)
206 {
207 QueryRate = 12;
208 printk("No BasicRate found!!\n");
209 }
210 return QueryRate;
211 }
212
213 u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
214 {
215 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
216 u8 rate;
217
218 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
219 rate = 0x0c;
220 else
221 rate = ieee->basic_rate & 0x7f;
222
223 if (rate == 0){
224 if (ieee->mode == IEEE_A||
225 ieee->mode== IEEE_N_5G||
226 (ieee->mode== IEEE_N_24G&&!pHTInfo->bCurSuppCCK))
227 rate = 0x0c;
228 else
229 rate = 0x02;
230 }
231
232 return rate;
233 }
234
235
236 void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
237
238 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
239 {
240 unsigned long flags;
241 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
242 struct rtllib_hdr_3addr *header=
243 (struct rtllib_hdr_3addr *) skb->data;
244
245 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
246 spin_lock_irqsave(&ieee->lock, flags);
247
248 /* called with 2nd param 0, no mgmt lock required */
249 rtllib_sta_wakeup(ieee,0);
250
251 if (header->frame_ctl == RTLLIB_STYPE_BEACON)
252 tcb_desc->queue_index = BEACON_QUEUE;
253 else
254 tcb_desc->queue_index = MGNT_QUEUE;
255
256 if (ieee->disable_mgnt_queue)
257 tcb_desc->queue_index = HIGH_QUEUE;
258
259 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
260 tcb_desc->RATRIndex = 7;
261 tcb_desc->bTxDisableRateFallBack = 1;
262 tcb_desc->bTxUseDriverAssingedRate = 1;
263 if (single) {
264 if (ieee->queue_stop){
265 enqueue_mgmt(ieee,skb);
266 }else{
267 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
268
269 if (ieee->seq_ctrl[0] == 0xFFF)
270 ieee->seq_ctrl[0] = 0;
271 else
272 ieee->seq_ctrl[0]++;
273
274 /* avoid watchdog triggers */
275 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
276 }
277
278 spin_unlock_irqrestore(&ieee->lock, flags);
279 }else{
280 spin_unlock_irqrestore(&ieee->lock, flags);
281 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
282
283 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
284
285 if (ieee->seq_ctrl[0] == 0xFFF)
286 ieee->seq_ctrl[0] = 0;
287 else
288 ieee->seq_ctrl[0]++;
289
290 /* check wether the managed packet queued greater than 5 */
291 if (!ieee->check_nic_enough_desc(ieee->dev,tcb_desc->queue_index)||\
292 (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0)||\
293 (ieee->queue_stop) ) {
294 /* insert the skb packet to the management queue */
295 /* as for the completion function, it does not need
296 * to check it any more.
297 * */
298 printk("%s():insert to waitqueue, queue_index:%d!\n",__func__,tcb_desc->queue_index);
299 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index], skb);
300 } else {
301 ieee->softmac_hard_start_xmit(skb,ieee->dev);
302 }
303 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
304 }
305 }
306
307 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
308 struct rtllib_device *ieee)
309 {
310 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
311 struct rtllib_hdr_3addr *header =
312 (struct rtllib_hdr_3addr *) skb->data;
313 u16 fc,type,stype;
314 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
315
316 fc = header->frame_ctl;
317 type = WLAN_FC_GET_TYPE(fc);
318 stype = WLAN_FC_GET_STYPE(fc);
319
320
321 if (stype != RTLLIB_STYPE_PSPOLL)
322 tcb_desc->queue_index = MGNT_QUEUE;
323 else
324 tcb_desc->queue_index = HIGH_QUEUE;
325
326 if (ieee->disable_mgnt_queue)
327 tcb_desc->queue_index = HIGH_QUEUE;
328
329
330 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
331 tcb_desc->RATRIndex = 7;
332 tcb_desc->bTxDisableRateFallBack = 1;
333 tcb_desc->bTxUseDriverAssingedRate = 1;
334 if (single) {
335 if (type != RTLLIB_FTYPE_CTL) {
336 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
337
338 if (ieee->seq_ctrl[0] == 0xFFF)
339 ieee->seq_ctrl[0] = 0;
340 else
341 ieee->seq_ctrl[0]++;
342
343 }
344 /* avoid watchdog triggers */
345 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
346
347 } else {
348 if (type != RTLLIB_FTYPE_CTL) {
349 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
350
351 if (ieee->seq_ctrl[0] == 0xFFF)
352 ieee->seq_ctrl[0] = 0;
353 else
354 ieee->seq_ctrl[0]++;
355 }
356 ieee->softmac_hard_start_xmit(skb,ieee->dev);
357
358 }
359 }
360
361 inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
362 {
363 unsigned int len,rate_len;
364 u8 *tag;
365 struct sk_buff *skb;
366 struct rtllib_probe_request *req;
367
368 len = ieee->current_network.ssid_len;
369
370 rate_len = rtllib_MFIE_rate_len(ieee);
371
372 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
373 2 + len + rate_len + ieee->tx_headroom);
374
375 if (!skb)
376 return NULL;
377
378 skb_reserve(skb, ieee->tx_headroom);
379
380 req = (struct rtllib_probe_request *) skb_put(skb,sizeof(struct rtllib_probe_request));
381 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
382 req->header.duration_id = 0;
383
384 memset(req->header.addr1, 0xff, ETH_ALEN);
385 memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
386 memset(req->header.addr3, 0xff, ETH_ALEN);
387
388 tag = (u8 *) skb_put(skb,len+2+rate_len);
389
390 *tag++ = MFIE_TYPE_SSID;
391 *tag++ = len;
392 memcpy(tag, ieee->current_network.ssid, len);
393 tag += len;
394
395 rtllib_MFIE_Brate(ieee,&tag);
396 rtllib_MFIE_Grate(ieee,&tag);
397
398 return skb;
399 }
400
401 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
402
403 void rtllib_send_beacon(struct rtllib_device *ieee)
404 {
405 struct sk_buff *skb;
406 if (!ieee->ieee_up)
407 return;
408 skb = rtllib_get_beacon_(ieee);
409
410 if (skb){
411 softmac_mgmt_xmit(skb, ieee);
412 ieee->softmac_stats.tx_beacons++;
413 }
414
415 if (ieee->beacon_txing && ieee->ieee_up){
416 mod_timer(&ieee->beacon_timer,jiffies+(MSECS(ieee->current_network.beacon_interval-5)));
417 }
418 }
419
420
421 void rtllib_send_beacon_cb(unsigned long _ieee)
422 {
423 struct rtllib_device *ieee =
424 (struct rtllib_device *) _ieee;
425 unsigned long flags;
426
427 spin_lock_irqsave(&ieee->beacon_lock, flags);
428 rtllib_send_beacon(ieee);
429 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
430 }
431
432 /*
433 * Description:
434 * Enable network monitor mode, all rx packets will be received.
435 */
436 void rtllib_EnableNetMonitorMode(struct net_device* dev,
437 bool bInitState)
438 {
439 struct rtllib_device* ieee = netdev_priv_rsl(dev);
440
441 printk("========>Enter Monitor Mode\n");
442
443 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
444 }
445
446
447 /*
448 * Description:
449 * Disable network network monitor mode, only packets destinated to
450 * us will be received.
451 */
452 void rtllib_DisableNetMonitorMode(struct net_device* dev,
453 bool bInitState)
454 {
455 struct rtllib_device* ieee = netdev_priv_rsl(dev);
456
457 printk("========>Exit Monitor Mode\n");
458
459 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
460 }
461
462
463 /*
464 * Description:
465 * This enables the specialized promiscuous mode required by Intel.
466 * In this mode, Intel intends to hear traffics from/to other STAs in the same BSS.
467 * Therefore we don't have to disable checking BSSID and we only need to allow all dest.
468 * BUT: if we enable checking BSSID then we can't recv packets from other STA.
469 */
470 void rtllib_EnableIntelPromiscuousMode(struct net_device* dev,
471 bool bInitState)
472 {
473 bool bFilterOutNonAssociatedBSSID = false;
474
475 struct rtllib_device* ieee = netdev_priv_rsl(dev);
476
477 printk("========>Enter Intel Promiscuous Mode\n");
478
479 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
480 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID, (u8*)&bFilterOutNonAssociatedBSSID);
481
482 ieee->bNetPromiscuousMode = true;
483 }
484
485
486 /*
487 * Description:
488 * This disables the specialized promiscuous mode required by Intel.
489 * See MgntEnableIntelPromiscuousMode for detail.
490 */
491 void rtllib_DisableIntelPromiscuousMode(struct net_device* dev,
492 bool bInitState)
493 {
494 bool bFilterOutNonAssociatedBSSID = true;
495
496 struct rtllib_device* ieee = netdev_priv_rsl(dev);
497
498 printk("========>Exit Intel Promiscuous Mode\n");
499
500 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
501 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID, (u8*)&bFilterOutNonAssociatedBSSID);
502
503 ieee->bNetPromiscuousMode = false;
504 }
505
506 void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
507 {
508 struct sk_buff *skb;
509 skb = rtllib_probe_req(ieee);
510 if (skb){
511 softmac_mgmt_xmit(skb, ieee);
512 ieee->softmac_stats.tx_probe_rq++;
513 }
514 }
515
516
517 void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
518 {
519 if (ieee->active_scan && (ieee->softmac_features &
520 IEEE_SOFTMAC_PROBERQ)) {
521 rtllib_send_probe(ieee, 0);
522 rtllib_send_probe(ieee, 0);
523 }
524 }
525
526 void rtllib_softmac_hint11d_wq(void *data)
527 {
528 }
529
530 void rtllib_update_active_chan_map(struct rtllib_device *ieee)
531 {
532 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
533 }
534
535 /* this performs syncro scan blocking the caller until all channels
536 * in the allowed channel map has been checked.
537 */
538 void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
539 {
540 short ch = 0;
541
542 rtllib_update_active_chan_map(ieee);
543
544 ieee->be_scan_inprogress = true;
545
546 down(&ieee->scan_sem);
547
548 while(1)
549 {
550
551 do {
552 ch++;
553 if (ch > MAX_CHANNEL_NUMBER)
554 goto out; /* scan completed */
555 } while(!ieee->active_channel_map[ch]);
556
557 /* this fuction can be called in two situations
558 * 1- We have switched to ad-hoc mode and we are
559 * performing a complete syncro scan before conclude
560 * there are no interesting cell and to create a
561 * new one. In this case the link state is
562 * RTLLIB_NOLINK until we found an interesting cell.
563 * If so the ieee8021_new_net, called by the RX path
564 * will set the state to RTLLIB_LINKED, so we stop
565 * scanning
566 * 2- We are linked and the root uses run iwlist scan.
567 * So we switch to RTLLIB_LINKED_SCANNING to remember
568 * that we are still logically linked (not interested in
569 * new network events, despite for updating the net list,
570 * but we are temporarly 'unlinked' as the driver shall
571 * not filter RX frames and the channel is changing.
572 * So the only situation in witch are interested is to check
573 * if the state become LINKED because of the #1 situation
574 */
575
576 if (ieee->state == RTLLIB_LINKED)
577 goto out;
578 if (ieee->sync_scan_hurryup){
579 printk("============>sync_scan_hurryup out\n");
580 goto out;
581 }
582
583 ieee->set_chan(ieee->dev, ch);
584 if (ieee->active_channel_map[ch] == 1)
585 rtllib_send_probe_requests(ieee, 0);
586
587 /* this prevent excessive time wait when we
588 * need to wait for a syncro scan to end..
589 */
590 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
591 }
592 out:
593 ieee->actscanning = false;
594 ieee->sync_scan_hurryup = 0;
595
596 if (ieee->state >= RTLLIB_LINKED){
597 if (IS_DOT11D_ENABLE(ieee))
598 DOT11D_ScanComplete(ieee);
599 }
600 up(&ieee->scan_sem);
601
602 ieee->be_scan_inprogress = false;
603
604 {
605 union iwreq_data wrqu;
606 memset(&wrqu, 0, sizeof(wrqu));
607 wireless_send_event(ieee->dev,SIOCGIWSCAN,&wrqu,NULL);
608 }
609 }
610
611 void rtllib_softmac_scan_wq(void *data)
612 {
613 struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, softmac_scan_wq);
614 u8 last_channel = ieee->current_network.channel;
615
616 rtllib_update_active_chan_map(ieee);
617
618 if (!ieee->ieee_up)
619 return;
620 if (rtllib_act_scanning(ieee,true) == true)
621 return;
622
623 down(&ieee->scan_sem);
624
625 if (ieee->eRFPowerState == eRfOff)
626 {
627 printk("======>%s():rf state is eRfOff, return\n",__func__);
628 goto out1;
629 }
630
631 do{
632 ieee->current_network.channel =
633 (ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
634 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER)
635 {
636 if (!ieee->active_channel_map[ieee->current_network.channel])
637 ieee->current_network.channel = 6;
638 goto out; /* no good chans */
639 }
640 } while(!ieee->active_channel_map[ieee->current_network.channel]);
641
642 if (ieee->scanning_continue == 0 )
643 goto out;
644
645 ieee->set_chan(ieee->dev, ieee->current_network.channel);
646
647 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
648 rtllib_send_probe_requests(ieee, 0);
649
650 queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq, MSECS(RTLLIB_SOFTMAC_SCAN_TIME));
651
652 up(&ieee->scan_sem);
653 return;
654
655 out:
656 if (IS_DOT11D_ENABLE(ieee))
657 DOT11D_ScanComplete(ieee);
658 ieee->current_network.channel = last_channel;
659
660 out1:
661 ieee->actscanning = false;
662 ieee->scan_watch_dog = 0;
663 ieee->scanning_continue = 0;
664 up(&ieee->scan_sem);
665 }
666
667
668
669 void rtllib_beacons_start(struct rtllib_device *ieee)
670 {
671 unsigned long flags;
672 spin_lock_irqsave(&ieee->beacon_lock,flags);
673
674 ieee->beacon_txing = 1;
675 rtllib_send_beacon(ieee);
676
677 spin_unlock_irqrestore(&ieee->beacon_lock,flags);
678 }
679
680 void rtllib_beacons_stop(struct rtllib_device *ieee)
681 {
682 unsigned long flags;
683
684 spin_lock_irqsave(&ieee->beacon_lock,flags);
685
686 ieee->beacon_txing = 0;
687 del_timer_sync(&ieee->beacon_timer);
688
689 spin_unlock_irqrestore(&ieee->beacon_lock,flags);
690
691 }
692
693
694 void rtllib_stop_send_beacons(struct rtllib_device *ieee)
695 {
696 if (ieee->stop_send_beacons)
697 ieee->stop_send_beacons(ieee->dev);
698 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
699 rtllib_beacons_stop(ieee);
700 }
701
702
703 void rtllib_start_send_beacons(struct rtllib_device *ieee)
704 {
705 if (ieee->start_send_beacons)
706 ieee->start_send_beacons(ieee->dev);
707 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
708 rtllib_beacons_start(ieee);
709 }
710
711
712 void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
713 {
714 down(&ieee->scan_sem);
715 ieee->scan_watch_dog = 0;
716 if (ieee->scanning_continue == 1) {
717 ieee->scanning_continue = 0;
718 ieee->actscanning = 0;
719
720 cancel_delayed_work(&ieee->softmac_scan_wq);
721 }
722
723 up(&ieee->scan_sem);
724 }
725
726 void rtllib_stop_scan(struct rtllib_device *ieee)
727 {
728 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
729 rtllib_softmac_stop_scan(ieee);
730 }else{
731 if (ieee->rtllib_stop_hw_scan)
732 ieee->rtllib_stop_hw_scan(ieee->dev);
733 }
734 }
735
736 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
737 {
738 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
739 ieee->sync_scan_hurryup = 1;
740 }else{
741 if (ieee->rtllib_stop_hw_scan)
742 ieee->rtllib_stop_hw_scan(ieee->dev);
743 }
744 }
745
746 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
747 {
748 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
749 if (sync_scan){
750 return ieee->be_scan_inprogress;
751 }else{
752 return (ieee->actscanning ||ieee->be_scan_inprogress);
753 }
754 }else{
755 return test_bit(STATUS_SCANNING, &ieee->status);
756 }
757 }
758
759 /* called with ieee->lock held */
760 void rtllib_start_scan(struct rtllib_device *ieee)
761 {
762 RT_TRACE(COMP_DBG, "===>%s()\n",__func__);
763 if (ieee->rtllib_ips_leave_wq != NULL)
764 ieee->rtllib_ips_leave_wq(ieee->dev);
765
766
767 if (IS_DOT11D_ENABLE(ieee) )
768 {
769 if (IS_COUNTRY_IE_VALID(ieee))
770 {
771 RESET_CIE_WATCHDOG(ieee);
772 }
773 }
774 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
775 if (ieee->scanning_continue == 0) {
776 ieee->actscanning = true;
777 ieee->scanning_continue = 1;
778 queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq, 0);
779 }
780 } else {
781 if (ieee->rtllib_start_hw_scan)
782 ieee->rtllib_start_hw_scan(ieee->dev);
783 }
784
785 }
786
787 /* called with wx_sem held */
788 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
789 {
790 if (IS_DOT11D_ENABLE(ieee) )
791 {
792 if (IS_COUNTRY_IE_VALID(ieee))
793 {
794 RESET_CIE_WATCHDOG(ieee);
795 }
796 }
797 ieee->sync_scan_hurryup = 0;
798 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
799 rtllib_softmac_scan_syncro(ieee, is_mesh);
800 }else{
801 if (ieee->rtllib_start_hw_scan)
802 ieee->rtllib_start_hw_scan(ieee->dev);
803 }
804
805 }
806
807 inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
808 struct rtllib_device *ieee, int challengelen,u8 * daddr)
809 {
810 struct sk_buff *skb;
811 struct rtllib_authentication *auth;
812 int len = 0;
813 len = sizeof(struct rtllib_authentication) + challengelen + ieee->tx_headroom + 4;
814 skb = dev_alloc_skb(len);
815
816 if (!skb) return NULL;
817
818 skb_reserve(skb, ieee->tx_headroom);
819
820 auth = (struct rtllib_authentication *)
821 skb_put(skb, sizeof(struct rtllib_authentication));
822
823 auth->header.frame_ctl = RTLLIB_STYPE_AUTH;
824 if (challengelen) auth->header.frame_ctl |= RTLLIB_FCTL_WEP;
825
826 auth->header.duration_id = 0x013a;
827 memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
828 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
829 memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
830 if (ieee->auth_mode == 0)
831 auth->algorithm = WLAN_AUTH_OPEN;
832 else if (ieee->auth_mode == 1)
833 auth->algorithm = WLAN_AUTH_SHARED_KEY;
834 else if (ieee->auth_mode == 2)
835 auth->algorithm = WLAN_AUTH_OPEN;
836 auth->transaction = cpu_to_le16(ieee->associate_seq);
837 ieee->associate_seq++;
838
839 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
840
841 return skb;
842
843 }
844
845 void constructWMMIE(u8* wmmie, u8* wmm_len,u8 oui_subtype)
846 {
847 u8 szQoSOUI[] ={221, 0, 0x00, 0x50, 0xf2, 0x02, 0, 1};
848
849 if (oui_subtype == OUI_SUBTYPE_QOS_CAPABI)
850 {
851 szQoSOUI[0] = 46;
852 szQoSOUI[1] = *wmm_len;
853 memcpy(wmmie,szQoSOUI,3);
854 *wmm_len = 3;
855 }
856 else
857 {
858 szQoSOUI[1] = *wmm_len + 6;
859 szQoSOUI[6] = oui_subtype;
860 memcpy(wmmie, szQoSOUI, 8);
861 *(wmmie+8) = 0;
862 *wmm_len = 9;
863 }
864 }
865
866 static struct sk_buff* rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
867 {
868 u8 *tag;
869 int beacon_size;
870 struct rtllib_probe_response *beacon_buf;
871 struct sk_buff *skb = NULL;
872 int encrypt;
873 int atim_len,erp_len;
874 struct rtllib_crypt_data* crypt;
875
876 char *ssid = ieee->current_network.ssid;
877 int ssid_len = ieee->current_network.ssid_len;
878 int rate_len = ieee->current_network.rates_len+2;
879 int rate_ex_len = ieee->current_network.rates_ex_len;
880 int wpa_ie_len = ieee->wpa_ie_len;
881 u8 erpinfo_content = 0;
882
883 u8* tmp_ht_cap_buf = NULL;
884 u8 tmp_ht_cap_len = 0;
885 u8* tmp_ht_info_buf = NULL;
886 u8 tmp_ht_info_len = 0;
887 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
888 u8* tmp_generic_ie_buf = NULL;
889 u8 tmp_generic_ie_len = 0;
890
891 if (rate_ex_len > 0)
892 rate_ex_len+=2;
893
894 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
895 atim_len = 4;
896 else
897 atim_len = 0;
898
899 if ((ieee->current_network.mode == IEEE_G)
900 ||( ieee->current_network.mode == IEEE_N_24G && ieee->pHTInfo->bCurSuppCCK)) {
901 erp_len = 3;
902 erpinfo_content = 0;
903 if (ieee->current_network.buseprotection)
904 erpinfo_content |= ERP_UseProtection;
905 }
906 else
907 erp_len = 0;
908
909 crypt = ieee->crypt[ieee->tx_keyidx];
910 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
911 ((0 == strcmp(crypt->ops->name, "WEP") || wpa_ie_len));
912 if (ieee->pHTInfo->bCurrentHTSupport){
913 tmp_ht_cap_buf =(u8*) &(ieee->pHTInfo->SelfHTCap);
914 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
915 tmp_ht_info_buf =(u8*) &(ieee->pHTInfo->SelfHTInfo);
916 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
917 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf, &tmp_ht_cap_len,encrypt, false);
918 HTConstructInfoElement(ieee,tmp_ht_info_buf,&tmp_ht_info_len, encrypt);
919
920
921 if (pHTInfo->bRegRT2RTAggregation)
922 {
923 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
924 tmp_generic_ie_len = sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
925 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf, &tmp_generic_ie_len);
926 }
927 }
928
929 beacon_size = sizeof(struct rtllib_probe_response)+2+
930 ssid_len
931 +3
932 +rate_len
933 +rate_ex_len
934 +atim_len
935 +erp_len
936 +wpa_ie_len
937 +ieee->tx_headroom;
938 skb = dev_alloc_skb(beacon_size);
939 if (!skb)
940 return NULL;
941
942 skb_reserve(skb, ieee->tx_headroom);
943
944 beacon_buf = (struct rtllib_probe_response*) skb_put(skb, (beacon_size - ieee->tx_headroom));
945 memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
946 memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
947 memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
948
949 beacon_buf->header.duration_id = 0;
950 beacon_buf->beacon_interval =
951 cpu_to_le16(ieee->current_network.beacon_interval);
952 beacon_buf->capability =
953 cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS);
954 beacon_buf->capability |=
955 cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE);
956
957 if (ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT_TIME))
958 cpu_to_le16((beacon_buf->capability |= WLAN_CAPABILITY_SHORT_SLOT_TIME));
959
960 crypt = ieee->crypt[ieee->tx_keyidx];
961 if (encrypt)
962 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
963
964
965 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
966 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
967 beacon_buf->info_element[0].len = ssid_len;
968
969 tag = (u8*) beacon_buf->info_element[0].data;
970
971 memcpy(tag, ssid, ssid_len);
972
973 tag += ssid_len;
974
975 *(tag++) = MFIE_TYPE_RATES;
976 *(tag++) = rate_len-2;
977 memcpy(tag,ieee->current_network.rates,rate_len-2);
978 tag+=rate_len-2;
979
980 *(tag++) = MFIE_TYPE_DS_SET;
981 *(tag++) = 1;
982 *(tag++) = ieee->current_network.channel;
983
984 if (atim_len){
985 u16 val16;
986 *(tag++) = MFIE_TYPE_IBSS_SET;
987 *(tag++) = 2;
988 val16 = cpu_to_le16(ieee->current_network.atim_window);
989 memcpy((u8 *)tag, (u8 *)&val16, 2);
990 tag+=2;
991 }
992
993 if (erp_len){
994 *(tag++) = MFIE_TYPE_ERP;
995 *(tag++) = 1;
996 *(tag++) = erpinfo_content;
997 }
998 if (rate_ex_len){
999 *(tag++) = MFIE_TYPE_RATES_EX;
1000 *(tag++) = rate_ex_len-2;
1001 memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2);
1002 tag+=rate_ex_len-2;
1003 }
1004
1005 if (wpa_ie_len)
1006 {
1007 if (ieee->iw_mode == IW_MODE_ADHOC)
1008 {
1009 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
1010 }
1011 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1012 tag += ieee->wpa_ie_len;
1013 }
1014
1015 return skb;
1016 }
1017
1018 struct sk_buff* rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
1019 {
1020 struct sk_buff *skb;
1021 u8* tag;
1022
1023 struct rtllib_crypt_data* crypt;
1024 struct rtllib_assoc_response_frame *assoc;
1025 short encrypt;
1026
1027 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
1028 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len + ieee->tx_headroom;
1029
1030 skb = dev_alloc_skb(len);
1031
1032 if (!skb)
1033 return NULL;
1034
1035 skb_reserve(skb, ieee->tx_headroom);
1036
1037 assoc = (struct rtllib_assoc_response_frame *)
1038 skb_put(skb,sizeof(struct rtllib_assoc_response_frame));
1039
1040 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
1041 memcpy(assoc->header.addr1, dest,ETH_ALEN);
1042 memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1043 memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1044 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
1045 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
1046
1047
1048 if (ieee->short_slot)
1049 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1050
1051 if (ieee->host_encrypt)
1052 crypt = ieee->crypt[ieee->tx_keyidx];
1053 else
1054 crypt = NULL;
1055
1056 encrypt = ( crypt && crypt->ops);
1057
1058 if (encrypt)
1059 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1060
1061 assoc->status = 0;
1062 assoc->aid = cpu_to_le16(ieee->assoc_id);
1063 if (ieee->assoc_id == 0x2007)
1064 ieee->assoc_id=0;
1065 else
1066 ieee->assoc_id++;
1067
1068 tag = (u8*) skb_put(skb, rate_len);
1069 rtllib_MFIE_Brate(ieee, &tag);
1070 rtllib_MFIE_Grate(ieee, &tag);
1071
1072 return skb;
1073 }
1074
1075 struct sk_buff* rtllib_auth_resp(struct rtllib_device *ieee,int status, u8 *dest)
1076 {
1077 struct sk_buff *skb = NULL;
1078 struct rtllib_authentication *auth;
1079 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication)+1;
1080 skb = dev_alloc_skb(len);
1081 if (!skb)
1082 return NULL;
1083
1084 skb->len = sizeof(struct rtllib_authentication);
1085
1086 skb_reserve(skb, ieee->tx_headroom);
1087
1088 auth = (struct rtllib_authentication *)
1089 skb_put(skb, sizeof(struct rtllib_authentication));
1090
1091 auth->status = cpu_to_le16(status);
1092 auth->transaction = cpu_to_le16(2);
1093 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1094
1095 memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1096 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1097 memcpy(auth->header.addr1, dest, ETH_ALEN);
1098 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1099 return skb;
1100
1101
1102 }
1103
1104 struct sk_buff* rtllib_null_func(struct rtllib_device *ieee,short pwr)
1105 {
1106 struct sk_buff *skb;
1107 struct rtllib_hdr_3addr* hdr;
1108
1109 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
1110 if (!skb)
1111 return NULL;
1112
1113 skb_reserve(skb, ieee->tx_headroom);
1114
1115 hdr = (struct rtllib_hdr_3addr*)skb_put(skb,sizeof(struct rtllib_hdr_3addr));
1116
1117 memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
1118 memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
1119 memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
1120
1121 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1122 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
1123 (pwr ? RTLLIB_FCTL_PM:0));
1124
1125 return skb;
1126
1127
1128 }
1129
1130 struct sk_buff* rtllib_pspoll_func(struct rtllib_device *ieee)
1131 {
1132 struct sk_buff *skb;
1133 struct rtllib_pspoll_hdr* hdr;
1134
1135 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
1136 if (!skb)
1137 return NULL;
1138
1139 skb_reserve(skb, ieee->tx_headroom);
1140
1141 hdr = (struct rtllib_pspoll_hdr*)skb_put(skb,sizeof(struct rtllib_pspoll_hdr));
1142
1143 memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN);
1144 memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN);
1145
1146 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
1147 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL |RTLLIB_STYPE_PSPOLL | RTLLIB_FCTL_PM);
1148
1149 return skb;
1150
1151 }
1152
1153 void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8* dest)
1154 {
1155 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1156
1157 if (buf)
1158 softmac_mgmt_xmit(buf, ieee);
1159 }
1160
1161
1162 void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8* dest)
1163 {
1164 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1165
1166 if (buf)
1167 softmac_mgmt_xmit(buf, ieee);
1168 }
1169
1170
1171 void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
1172 {
1173
1174 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
1175 if (buf)
1176 softmac_mgmt_xmit(buf, ieee);
1177 }
1178
1179
1180 inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1181 {
1182 int i = 0;
1183
1184 do
1185 {
1186 if ((ieee->PMKIDList[i].bUsed) && (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
1187 {
1188 break;
1189 }
1190 else
1191 {
1192 i++;
1193 }
1194 } while (i < NUM_PMKID_CACHE);
1195
1196 if (i == NUM_PMKID_CACHE)
1197 {
1198 i = -1;
1199 }
1200 else
1201 {
1202 }
1203
1204 return (i);
1205
1206 }
1207
1208
1209 inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,struct rtllib_device *ieee)
1210 {
1211 struct sk_buff *skb;
1212
1213 struct rtllib_assoc_request_frame *hdr;
1214 u8 *tag, *ies;
1215 int i;
1216 u8* ht_cap_buf = NULL;
1217 u8 ht_cap_len=0;
1218 u8* realtek_ie_buf=NULL;
1219 u8 realtek_ie_len=0;
1220 int wpa_ie_len= ieee->wpa_ie_len;
1221 int wps_ie_len = ieee->wps_ie_len;
1222 unsigned int ckip_ie_len=0;
1223 unsigned int ccxrm_ie_len=0;
1224 unsigned int cxvernum_ie_len=0;
1225 struct rtllib_crypt_data* crypt;
1226 int encrypt;
1227 int PMKCacheIdx;
1228
1229 unsigned int rate_len = (beacon->rates_len?(beacon->rates_len+2):0) + (beacon->rates_ex_len?(beacon->rates_ex_len)+2:0);
1230
1231 unsigned int wmm_info_len = beacon->qos_data.supported?9:0;
1232 unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;
1233
1234 int len = 0;
1235 crypt = ieee->crypt[ieee->tx_keyidx];
1236 if (crypt != NULL) {
1237 encrypt = ieee->host_encrypt && crypt && crypt->ops && ((0 == strcmp(crypt->ops->name,"WEP") || wpa_ie_len));
1238 } else {
1239 encrypt = 0;
1240 }
1241
1242 if ((ieee->rtllib_ap_sec_type && (ieee->rtllib_ap_sec_type(ieee)&SEC_ALG_TKIP)) ||(ieee->bForcedBgMode == true))
1243 {
1244 ieee->pHTInfo->bEnableHT = 0;
1245 ieee->mode = WIRELESS_MODE_G;
1246 }
1247
1248 if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
1249 {
1250 ht_cap_buf = (u8*)&(ieee->pHTInfo->SelfHTCap);
1251 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
1252 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len, encrypt, true);
1253 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1254 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
1255 realtek_ie_len = sizeof( ieee->pHTInfo->szRT2RTAggBuffer);
1256 HTConstructRT2RTAggElement(ieee, realtek_ie_buf, &realtek_ie_len);
1257
1258 }
1259 }
1260
1261 if (beacon->bCkipSupported)
1262 {
1263 ckip_ie_len = 30+2;
1264 }
1265 if (beacon->bCcxRmEnable)
1266 {
1267 ccxrm_ie_len = 6+2;
1268 }
1269 if ( beacon->BssCcxVerNumber >= 2 )
1270 {
1271 cxvernum_ie_len = 5+2;
1272 }
1273
1274 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
1275 if (PMKCacheIdx >= 0)
1276 {
1277 wpa_ie_len += 18;
1278 printk("[PMK cache]: WPA2 IE length: %x\n", wpa_ie_len);
1279 }
1280 len = sizeof(struct rtllib_assoc_request_frame)+ 2
1281 + beacon->ssid_len
1282 + rate_len
1283 + wpa_ie_len
1284 + wps_ie_len
1285 + wmm_info_len
1286 + turbo_info_len
1287 + ht_cap_len
1288 + realtek_ie_len
1289 + ckip_ie_len
1290 + ccxrm_ie_len
1291 + cxvernum_ie_len
1292 + ieee->tx_headroom;
1293
1294 skb = dev_alloc_skb(len);
1295
1296 if (!skb)
1297 return NULL;
1298
1299 skb_reserve(skb, ieee->tx_headroom);
1300
1301 hdr = (struct rtllib_assoc_request_frame *)
1302 skb_put(skb, sizeof(struct rtllib_assoc_request_frame)+2);
1303
1304
1305 hdr->header.frame_ctl = RTLLIB_STYPE_ASSOC_REQ;
1306 hdr->header.duration_id= 37;
1307 memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1308 memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1309 memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1310
1311 memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);
1312
1313 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1314 if (beacon->capability & WLAN_CAPABILITY_PRIVACY )
1315 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1316
1317 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1318 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1319
1320 if (ieee->short_slot && (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
1321 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1322
1323
1324 hdr->listen_interval = beacon->listen_interval;
1325
1326 hdr->info_element[0].id = MFIE_TYPE_SSID;
1327
1328 hdr->info_element[0].len = beacon->ssid_len;
1329 tag = skb_put(skb, beacon->ssid_len);
1330 memcpy(tag, beacon->ssid, beacon->ssid_len);
1331
1332 tag = skb_put(skb, rate_len);
1333
1334 if (beacon->rates_len){
1335 *tag++ = MFIE_TYPE_RATES;
1336 *tag++ = beacon->rates_len;
1337 for (i=0;i<beacon->rates_len;i++){
1338 *tag++ = beacon->rates[i];
1339 }
1340 }
1341
1342 if (beacon->rates_ex_len){
1343 *tag++ = MFIE_TYPE_RATES_EX;
1344 *tag++ = beacon->rates_ex_len;
1345 for (i=0;i<beacon->rates_ex_len;i++){
1346 *tag++ = beacon->rates_ex[i];
1347 }
1348 }
1349
1350 if ( beacon->bCkipSupported )
1351 {
1352 static u8 AironetIeOui[] = {0x00, 0x01, 0x66};
1353 u8 CcxAironetBuf[30];
1354 struct octet_string osCcxAironetIE;
1355
1356 memset(CcxAironetBuf, 0,30);
1357 osCcxAironetIE.Octet = CcxAironetBuf;
1358 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
1359 memcpy(osCcxAironetIE.Octet, AironetIeOui, sizeof(AironetIeOui));
1360
1361 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |= (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC) ;
1362 tag = skb_put(skb, ckip_ie_len);
1363 *tag++ = MFIE_TYPE_AIRONET;
1364 *tag++ = osCcxAironetIE.Length;
1365 memcpy(tag,osCcxAironetIE.Octet,osCcxAironetIE.Length);
1366 tag += osCcxAironetIE.Length;
1367 }
1368
1369 if (beacon->bCcxRmEnable)
1370 {
1371 static u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01, 0x00};
1372 struct octet_string osCcxRmCap;
1373
1374 osCcxRmCap.Octet = CcxRmCapBuf;
1375 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
1376 tag = skb_put(skb,ccxrm_ie_len);
1377 *tag++ = MFIE_TYPE_GENERIC;
1378 *tag++ = osCcxRmCap.Length;
1379 memcpy(tag,osCcxRmCap.Octet,osCcxRmCap.Length);
1380 tag += osCcxRmCap.Length;
1381 }
1382
1383 if ( beacon->BssCcxVerNumber >= 2 )
1384 {
1385 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1386 struct octet_string osCcxVerNum;
1387 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1388 osCcxVerNum.Octet = CcxVerNumBuf;
1389 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
1390 tag = skb_put(skb,cxvernum_ie_len);
1391 *tag++ = MFIE_TYPE_GENERIC;
1392 *tag++ = osCcxVerNum.Length;
1393 memcpy(tag,osCcxVerNum.Octet,osCcxVerNum.Length);
1394 tag += osCcxVerNum.Length;
1395 }
1396 if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
1397 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC)
1398 {
1399 tag = skb_put(skb, ht_cap_len);
1400 *tag++ = MFIE_TYPE_HT_CAP;
1401 *tag++ = ht_cap_len - 2;
1402 memcpy(tag, ht_cap_buf,ht_cap_len -2);
1403 tag += ht_cap_len -2;
1404 }
1405 }
1406
1407
1408 if (wpa_ie_len){
1409 tag = skb_put(skb, ieee->wpa_ie_len);
1410 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1411
1412 if (PMKCacheIdx >= 0)
1413 {
1414 tag = skb_put(skb, 18);
1415 *tag = 1;
1416 *(tag + 1) = 0;
1417 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID, 16);
1418 }
1419 }
1420 if (wmm_info_len) {
1421 tag = skb_put(skb,wmm_info_len);
1422 rtllib_WMM_Info(ieee, &tag);
1423 }
1424
1425 if (wps_ie_len && ieee->wps_ie) {
1426 tag = skb_put(skb, wps_ie_len);
1427 memcpy(tag, ieee->wps_ie, wps_ie_len);
1428 }
1429
1430 tag = skb_put(skb,turbo_info_len);
1431 if (turbo_info_len)
1432 rtllib_TURBO_Info(ieee, &tag);
1433
1434 if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
1435 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC)
1436 {
1437 tag = skb_put(skb, ht_cap_len);
1438 *tag++ = MFIE_TYPE_GENERIC;
1439 *tag++ = ht_cap_len - 2;
1440 memcpy(tag, ht_cap_buf,ht_cap_len - 2);
1441 tag += ht_cap_len -2;
1442 }
1443
1444 if (ieee->pHTInfo->bCurrentRT2RTAggregation){
1445 tag = skb_put(skb, realtek_ie_len);
1446 *tag++ = MFIE_TYPE_GENERIC;
1447 *tag++ = realtek_ie_len - 2;
1448 memcpy(tag, realtek_ie_buf,realtek_ie_len -2 );
1449 }
1450 }
1451
1452 if (ieee->assocreq_ies){
1453 kfree(ieee->assocreq_ies);
1454 ieee->assocreq_ies = NULL;
1455 }
1456 ies = &(hdr->info_element[0].id);
1457 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1458 ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1459 if (ieee->assocreq_ies)
1460 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
1461 else{
1462 printk("%s()Warning: can't alloc memory for assocreq_ies\n", __func__);
1463 ieee->assocreq_ies_len = 0;
1464 }
1465
1466 return skb;
1467 }
1468
1469 void rtllib_associate_abort(struct rtllib_device *ieee)
1470 {
1471
1472 unsigned long flags;
1473 spin_lock_irqsave(&ieee->lock, flags);
1474
1475 ieee->associate_seq++;
1476
1477 /* don't scan, and avoid to have the RX path possibily
1478 * try again to associate. Even do not react to AUTH or
1479 * ASSOC response. Just wait for the retry wq to be scheduled.
1480 * Here we will check if there are good nets to associate
1481 * with, so we retry or just get back to NO_LINK and scanning
1482 */
1483 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING){
1484 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1485 ieee->softmac_stats.no_auth_rs++;
1486 }else{
1487 RTLLIB_DEBUG_MGMT("Association failed\n");
1488 ieee->softmac_stats.no_ass_rs++;
1489 }
1490
1491 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1492
1493 queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq, \
1494 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
1495
1496 spin_unlock_irqrestore(&ieee->lock, flags);
1497 }
1498
1499 void rtllib_associate_abort_cb(unsigned long dev)
1500 {
1501 rtllib_associate_abort((struct rtllib_device *) dev);
1502 }
1503
1504 void rtllib_associate_step1(struct rtllib_device *ieee,u8 * daddr)
1505 {
1506 struct rtllib_network *beacon = &ieee->current_network;
1507 struct sk_buff *skb;
1508
1509 RTLLIB_DEBUG_MGMT("Stopping scan\n");
1510
1511 ieee->softmac_stats.tx_auth_rq++;
1512
1513 skb=rtllib_authentication_req(beacon, ieee, 0,daddr);
1514
1515 if (!skb)
1516 rtllib_associate_abort(ieee);
1517 else{
1518 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING ;
1519 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1520 softmac_mgmt_xmit(skb, ieee);
1521 if (!timer_pending(&ieee->associate_timer)){
1522 ieee->associate_timer.expires = jiffies + (HZ / 2);
1523 add_timer(&ieee->associate_timer);
1524 }
1525 }
1526 }
1527
1528 void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int chlen)
1529 {
1530 u8 *c;
1531 struct sk_buff *skb;
1532 struct rtllib_network *beacon = &ieee->current_network;
1533
1534 ieee->associate_seq++;
1535 ieee->softmac_stats.tx_auth_rq++;
1536
1537 skb = rtllib_authentication_req(beacon, ieee, chlen+2,beacon->bssid);
1538
1539 if (!skb)
1540 rtllib_associate_abort(ieee);
1541 else{
1542 c = skb_put(skb, chlen+2);
1543 *(c++) = MFIE_TYPE_CHALLENGE;
1544 *(c++) = chlen;
1545 memcpy(c, challenge, chlen);
1546
1547 RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");
1548
1549 rtllib_encrypt_fragment(ieee, skb, sizeof(struct rtllib_hdr_3addr ));
1550
1551 softmac_mgmt_xmit(skb, ieee);
1552 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1553 }
1554 kfree(challenge);
1555 }
1556
1557 void rtllib_associate_step2(struct rtllib_device *ieee)
1558 {
1559 struct sk_buff* skb;
1560 struct rtllib_network *beacon = &ieee->current_network;
1561
1562 del_timer_sync(&ieee->associate_timer);
1563
1564 RTLLIB_DEBUG_MGMT("Sending association request\n");
1565
1566 ieee->softmac_stats.tx_ass_rq++;
1567 skb=rtllib_association_req(beacon, ieee);
1568 if (!skb)
1569 rtllib_associate_abort(ieee);
1570 else{
1571 softmac_mgmt_xmit(skb, ieee);
1572 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1573 }
1574 }
1575
1576 #define CANCELLED 2
1577 void rtllib_associate_complete_wq(void *data)
1578 {
1579 struct rtllib_device *ieee = (struct rtllib_device *)container_of_work_rsl(data, struct rtllib_device, associate_complete_wq);
1580 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)(&(ieee->PowerSaveControl));
1581 printk(KERN_INFO "Associated successfully\n");
1582 if (ieee->is_silent_reset == 0){
1583 printk("normal associate\n");
1584 notify_wx_assoc_event(ieee);
1585 }
1586
1587 netif_carrier_on(ieee->dev);
1588 ieee->is_roaming = false;
1589 if (rtllib_is_54g(&ieee->current_network) &&
1590 (ieee->modulation & RTLLIB_OFDM_MODULATION)){
1591
1592 ieee->rate = 108;
1593 printk(KERN_INFO"Using G rates:%d\n", ieee->rate);
1594 }else{
1595 ieee->rate = 22;
1596 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1597 printk(KERN_INFO"Using B rates:%d\n", ieee->rate);
1598 }
1599 if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
1600 {
1601 printk("Successfully associated, ht enabled\n");
1602 HTOnAssocRsp(ieee);
1603 } else {
1604 printk("Successfully associated, ht not enabled(%d, %d)\n",
1605 ieee->pHTInfo->bCurrentHTSupport, ieee->pHTInfo->bEnableHT);
1606 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1607 }
1608 ieee->LinkDetectInfo.SlotNum = 2 * (1 + ieee->current_network.beacon_interval/500);
1609 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
1610 {
1611 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
1612 ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
1613 }
1614 pPSC->LpsIdleCount = 0;
1615 ieee->link_change(ieee->dev);
1616
1617 if (ieee->is_silent_reset == 1) {
1618 printk("silent reset associate\n");
1619 ieee->is_silent_reset = 0;
1620 }
1621
1622 if (ieee->data_hard_resume)
1623 ieee->data_hard_resume(ieee->dev);
1624
1625 }
1626
1627 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1628 {
1629 char *buf;
1630 size_t len;
1631 int i;
1632 union iwreq_data wrqu;
1633
1634 return;
1635
1636
1637 buf = kmalloc(50 + 2 * (ieee->assocreq_ies_len + ieee->assocresp_ies_len), GFP_ATOMIC);
1638 if (!buf)
1639 return;
1640
1641 len = sprintf(buf, "ASSOCINFO(");
1642 if (ieee->assocreq_ies) {
1643 len += sprintf(buf + len, "ReqIEs=");
1644 for (i = 0; i < ieee->assocreq_ies_len; i++) {
1645 len += sprintf(buf + len, "%02x", ieee->assocreq_ies[i]);
1646 }
1647 }
1648 if (ieee->assocresp_ies) {
1649 if (ieee->assocreq_ies)
1650 len += sprintf(buf + len, " ");
1651 len += sprintf(buf + len, "RespIEs=");
1652 for (i = 0; i < ieee->assocresp_ies_len; i++) {
1653 len += sprintf(buf + len, "%02x", ieee->assocresp_ies[i]);
1654 }
1655 }
1656 len += sprintf(buf + len, ")");
1657
1658 if (len > IW_CUSTOM_MAX) {
1659 len = sprintf(buf, "ASSOCRESPIE=");
1660 for (i = 0; i < ieee->assocresp_ies_len; i++) {
1661 len += sprintf(buf + len, "%02x", ieee->assocresp_ies[i]);
1662 }
1663 }
1664
1665 if (len <= IW_CUSTOM_MAX) {
1666 memset(&wrqu, 0, sizeof(wrqu));
1667 wrqu.data.length = len;
1668 wireless_send_event(ieee->dev, IWEVCUSTOM, &wrqu, buf);
1669 }
1670
1671 kfree(buf);
1672 }
1673
1674 void rtllib_associate_complete(struct rtllib_device *ieee)
1675 {
1676 del_timer_sync(&ieee->associate_timer);
1677
1678 ieee->state = RTLLIB_LINKED;
1679 rtllib_sta_send_associnfo(ieee);
1680
1681 queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1682 }
1683
1684 void rtllib_associate_procedure_wq(void *data)
1685 {
1686 struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, associate_procedure_wq);
1687 rtllib_stop_scan_syncro(ieee);
1688 if (ieee->rtllib_ips_leave != NULL)
1689 ieee->rtllib_ips_leave(ieee->dev);
1690 down(&ieee->wx_sem);
1691
1692 if (ieee->data_hard_stop)
1693 ieee->data_hard_stop(ieee->dev);
1694
1695 rtllib_stop_scan(ieee);
1696 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__, ieee->current_network.channel);
1697 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1698 if (ieee->eRFPowerState == eRfOff)
1699 {
1700 RT_TRACE(COMP_DBG, "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",__func__);
1701 if (ieee->rtllib_ips_leave_wq != NULL)
1702 ieee->rtllib_ips_leave_wq(ieee->dev);
1703 up(&ieee->wx_sem);
1704 return;
1705 }
1706 ieee->associate_seq = 1;
1707
1708 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1709
1710 up(&ieee->wx_sem);
1711 }
1712
1713 inline void rtllib_softmac_new_net(struct rtllib_device *ieee, struct rtllib_network *net)
1714 {
1715 u8 tmp_ssid[IW_ESSID_MAX_SIZE+1];
1716 int tmp_ssid_len = 0;
1717
1718 short apset,ssidset,ssidbroad,apmatch,ssidmatch;
1719
1720 /* we are interested in new new only if we are not associated
1721 * and we are not associating / authenticating
1722 */
1723 if (ieee->state != RTLLIB_NOLINK)
1724 return;
1725
1726 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_ESS))
1727 return;
1728
1729 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
1730 return;
1731
1732 if ((ieee->iw_mode == IW_MODE_ADHOC) && (net->channel > ieee->ibss_maxjoin_chal)) {
1733 return;
1734 }
1735 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC)
1736 {
1737 /* if the user specified the AP MAC, we need also the essid
1738 * This could be obtained by beacons or, if the network does not
1739 * broadcast it, it can be put manually.
1740 */
1741 apset = ieee->wap_set;
1742 ssidset = ieee->ssid_set;
1743 ssidbroad = !(net->ssid_len == 0 || net->ssid[0]== '\0');
1744 apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
1745 if (!ssidbroad){
1746 ssidmatch = (ieee->current_network.ssid_len == net->hidden_ssid_len)&&\
1747 (!strncmp(ieee->current_network.ssid, net->hidden_ssid, net->hidden_ssid_len));
1748 if (net->hidden_ssid_len > 0)
1749 {
1750 strncpy(net->ssid, net->hidden_ssid, net->hidden_ssid_len);
1751 net->ssid_len = net->hidden_ssid_len;
1752 ssidbroad = 1;
1753 }
1754 }
1755 else
1756 ssidmatch = (ieee->current_network.ssid_len == net->ssid_len)&&\
1757 (!strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));
1758
1759 if ( /* if the user set the AP check if match.
1760 * if the network does not broadcast essid we check the user supplyed ANY essid
1761 * if the network does broadcast and the user does not set essid it is OK
1762 * if the network does broadcast and the user did set essid chech if essid match
1763 */
1764 ( apset && apmatch &&
1765 ((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) )
1766 /* if the ap is not set, check that the user set the bssid
1767 * and the network does bradcast and that those two bssid matches
1768 */
1769 || (!apset && ssidset && ssidbroad && ssidmatch) || (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)
1770 ){
1771 /* if the essid is hidden replace it with the
1772 * essid provided by the user.
1773 */
1774 if (!ssidbroad){
1775 strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
1776 tmp_ssid_len = ieee->current_network.ssid_len;
1777 }
1778 memcpy(&ieee->current_network, net, sizeof(struct rtllib_network));
1779 if (!ssidbroad){
1780 strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
1781 ieee->current_network.ssid_len = tmp_ssid_len;
1782 }
1783 printk(KERN_INFO"Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",ieee->current_network.ssid,ieee->current_network.channel, ieee->current_network.qos_data.supported, ieee->pHTInfo->bEnableHT, ieee->current_network.bssht.bdSupportHT, ieee->current_network.mode, ieee->current_network.flags);
1784
1785 if ((rtllib_act_scanning(ieee, false)) && !(ieee->softmac_features & IEEE_SOFTMAC_SCAN)){
1786 rtllib_stop_scan_syncro(ieee);
1787 }
1788
1789 ieee->hwscan_ch_bk = ieee->current_network.channel;
1790 HTResetIOTSetting(ieee->pHTInfo);
1791 ieee->wmm_acm = 0;
1792 if (ieee->iw_mode == IW_MODE_INFRA) {
1793 /* Join the network for the first time */
1794 ieee->AsocRetryCount = 0;
1795 if ((ieee->current_network.qos_data.supported == 1) &&
1796 ieee->current_network.bssht.bdSupportHT)
1797 HTResetSelfAndSavePeerSetting(ieee, &(ieee->current_network));
1798 else
1799 ieee->pHTInfo->bCurrentHTSupport = false;
1800
1801 ieee->state = RTLLIB_ASSOCIATING;
1802 if (ieee->LedControlHandler != NULL)
1803 ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK);
1804 queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 0);
1805 } else {
1806 if (rtllib_is_54g(&ieee->current_network) &&
1807 (ieee->modulation & RTLLIB_OFDM_MODULATION)){
1808 ieee->rate = 108;
1809 ieee->SetWirelessMode(ieee->dev, IEEE_G);
1810 printk(KERN_INFO"Using G rates\n");
1811 }else{
1812 ieee->rate = 22;
1813 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1814 printk(KERN_INFO"Using B rates\n");
1815 }
1816 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1817 ieee->state = RTLLIB_LINKED;
1818 }
1819
1820 }
1821 }
1822
1823 }
1824
1825 void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1826 {
1827 unsigned long flags;
1828 struct rtllib_network *target;
1829
1830 spin_lock_irqsave(&ieee->lock, flags);
1831
1832 list_for_each_entry(target, &ieee->network_list, list) {
1833
1834 /* if the state become different that NOLINK means
1835 * we had found what we are searching for
1836 */
1837
1838 if (ieee->state != RTLLIB_NOLINK)
1839 break;
1840
1841 if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
1842 rtllib_softmac_new_net(ieee, target);
1843 }
1844
1845 spin_unlock_irqrestore(&ieee->lock, flags);
1846
1847 }
1848
1849
1850 static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
1851 {
1852 struct rtllib_authentication *a;
1853 u8 *t;
1854 if (skb->len < (sizeof(struct rtllib_authentication)-sizeof(struct rtllib_info_element))){
1855 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
1856 return 0xcafe;
1857 }
1858 *challenge = NULL;
1859 a = (struct rtllib_authentication*) skb->data;
1860 if (skb->len > (sizeof(struct rtllib_authentication) +3)){
1861 t = skb->data + sizeof(struct rtllib_authentication);
1862
1863 if (*(t++) == MFIE_TYPE_CHALLENGE){
1864 *chlen = *(t++);
1865 *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
1866 memcpy(*challenge, t, *chlen);
1867 }
1868 }
1869
1870 return cpu_to_le16(a->status);
1871
1872 }
1873
1874
1875 int auth_rq_parse(struct sk_buff *skb,u8* dest)
1876 {
1877 struct rtllib_authentication *a;
1878
1879 if (skb->len < (sizeof(struct rtllib_authentication)-sizeof(struct rtllib_info_element))){
1880 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
1881 return -1;
1882 }
1883 a = (struct rtllib_authentication*) skb->data;
1884
1885 memcpy(dest,a->header.addr2, ETH_ALEN);
1886
1887 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1888 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1889
1890 return WLAN_STATUS_SUCCESS;
1891 }
1892
1893 static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb, u8 *src)
1894 {
1895 u8 *tag;
1896 u8 *skbend;
1897 u8 *ssid=NULL;
1898 u8 ssidlen = 0;
1899
1900 struct rtllib_hdr_3addr *header =
1901 (struct rtllib_hdr_3addr *) skb->data;
1902
1903 if (skb->len < sizeof (struct rtllib_hdr_3addr ))
1904 return -1; /* corrupted */
1905 if ((memcmp(header->addr3,ieee->current_network.bssid,ETH_ALEN) != 0)&&
1906 (memcmp(header->addr3,"\xff\xff\xff\xff\xff\xff",ETH_ALEN) != 0)) {
1907 return -1;
1908 }
1909
1910 if (memcmp(header->addr3,ieee->current_network.bssid,ETH_ALEN) == 0) {
1911 }
1912
1913 if (memcmp(header->addr3,"\xff\xff\xff\xff\xff\xff",ETH_ALEN) == 0) {
1914 }
1915 memcpy(src,header->addr2, ETH_ALEN);
1916
1917 skbend = (u8*)skb->data + skb->len;
1918
1919 tag = skb->data + sizeof (struct rtllib_hdr_3addr );
1920
1921 while (tag+1 < skbend){
1922 if (*tag == 0){
1923 ssid = tag+2;
1924 ssidlen = *(tag+1);
1925 break;
1926 }
1927 tag++; /* point to the len field */
1928 tag = tag + *(tag); /* point to the last data byte of the tag */
1929 tag++; /* point to the next tag */
1930 }
1931
1932 if (ssidlen == 0) return 1;
1933
1934 if (!ssid) return 1; /* ssid not found in tagged param */
1935 return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));
1936
1937 }
1938
1939 int assoc_rq_parse(struct sk_buff *skb,u8* dest)
1940 {
1941 struct rtllib_assoc_request_frame *a;
1942
1943 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1944 sizeof(struct rtllib_info_element))) {
1945
1946 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
1947 return -1;
1948 }
1949
1950 a = (struct rtllib_assoc_request_frame*) skb->data;
1951
1952 memcpy(dest,a->header.addr2,ETH_ALEN);
1953
1954 return 0;
1955 }
1956
1957 static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb, int *aid)
1958 {
1959 struct rtllib_assoc_response_frame *response_head;
1960 u16 status_code;
1961
1962 if (skb->len < sizeof(struct rtllib_assoc_response_frame)){
1963 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1964 return 0xcafe;
1965 }
1966
1967 response_head = (struct rtllib_assoc_response_frame*) skb->data;
1968 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1969
1970 status_code = le16_to_cpu(response_head->status);
1971 if ((status_code==WLAN_STATUS_ASSOC_DENIED_RATES || \
1972 status_code==WLAN_STATUS_CAPS_UNSUPPORTED)&&
1973 ((ieee->mode == IEEE_G) &&
1974 (ieee->current_network.mode == IEEE_N_24G) &&
1975 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1976 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1977 }else {
1978 ieee->AsocRetryCount = 0;
1979 }
1980
1981 return le16_to_cpu(response_head->status);
1982 }
1983
1984 void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1985 {
1986 u8 dest[ETH_ALEN];
1987 ieee->softmac_stats.rx_probe_rq++;
1988 if (probe_rq_parse(ieee, skb, dest) > 0){
1989 ieee->softmac_stats.tx_probe_rs++;
1990 rtllib_resp_to_probe(ieee, dest);
1991 }
1992 }
1993
1994 static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1995 {
1996 u8 dest[ETH_ALEN];
1997 int status;
1998 ieee->softmac_stats.rx_auth_rq++;
1999
2000 if ((status = auth_rq_parse(skb, dest))!= -1){
2001 rtllib_resp_to_auth(ieee, status, dest);
2002 }
2003
2004 }
2005
2006 static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee, struct sk_buff *skb)
2007 {
2008
2009 u8 dest[ETH_ALEN];
2010
2011 ieee->softmac_stats.rx_ass_rq++;
2012 if (assoc_rq_parse(skb,dest) != -1){
2013 rtllib_resp_to_assoc_rq(ieee, dest);
2014 }
2015
2016 printk(KERN_INFO"New client associated: "MAC_FMT"\n", MAC_ARG(dest));
2017 }
2018
2019
2020 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
2021 {
2022
2023 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
2024
2025 if (buf)
2026 softmac_ps_mgmt_xmit(buf, ieee);
2027
2028 }
2029
2030 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
2031 {
2032
2033 struct sk_buff *buf = rtllib_pspoll_func(ieee);
2034
2035 if (buf)
2036 softmac_ps_mgmt_xmit(buf, ieee);
2037
2038 }
2039
2040 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
2041 {
2042 int timeout = ieee->ps_timeout;
2043 u8 dtim;
2044 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)(&(ieee->PowerSaveControl));
2045 /*if (ieee->ps == RTLLIB_PS_DISABLED ||
2046 ieee->iw_mode != IW_MODE_INFRA ||
2047 ieee->state != RTLLIB_LINKED)
2048
2049 return 0;
2050 */
2051
2052 if (ieee->LPSDelayCnt)
2053 {
2054 ieee->LPSDelayCnt --;
2055 return 0;
2056 }
2057
2058 dtim = ieee->current_network.dtim_data;
2059 if (!(dtim & RTLLIB_DTIM_VALID))
2060 return 0;
2061 timeout = ieee->current_network.beacon_interval;
2062 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
2063 /* there's no need to nofity AP that I find you buffered with broadcast packet */
2064 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
2065 return 2;
2066
2067 if (!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))){
2068 return 0;
2069 }
2070 if (!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))){
2071 return 0;
2072 }
2073 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
2074 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
2075 return 0;
2076
2077 if (time){
2078 if (ieee->bAwakePktSent == true) {
2079 pPSC->LPSAwakeIntvl = 1;
2080 } else {
2081 u8 MaxPeriod = 1;
2082
2083 if (pPSC->LPSAwakeIntvl == 0)
2084 pPSC->LPSAwakeIntvl = 1;
2085 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2086 MaxPeriod = 1;
2087 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2088 MaxPeriod = ieee->current_network.dtim_period;
2089 else
2090 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
2091 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >= MaxPeriod) ? MaxPeriod : (pPSC->LPSAwakeIntvl + 1);
2092 }
2093 {
2094 u8 LPSAwakeIntvl_tmp = 0;
2095 u8 period = ieee->current_network.dtim_period;
2096 u8 count = ieee->current_network.tim.tim_count;
2097 if (count == 0 ) {
2098 if (pPSC->LPSAwakeIntvl > period)
2099 LPSAwakeIntvl_tmp = period + (pPSC->LPSAwakeIntvl - period) -((pPSC->LPSAwakeIntvl-period)%period);
2100 else
2101 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2102
2103 } else {
2104 if (pPSC->LPSAwakeIntvl > ieee->current_network.tim.tim_count)
2105 LPSAwakeIntvl_tmp = count + (pPSC->LPSAwakeIntvl - count) -((pPSC->LPSAwakeIntvl-count)%period);
2106 else
2107 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2108 }
2109
2110 *time = ieee->current_network.last_dtim_sta_time
2111 + MSECS(ieee->current_network.beacon_interval * LPSAwakeIntvl_tmp);
2112 }
2113 }
2114
2115 return 1;
2116
2117
2118 }
2119
2120 inline void rtllib_sta_ps(struct rtllib_device *ieee)
2121 {
2122
2123 u64 time;
2124 short sleep;
2125
2126 unsigned long flags,flags2;
2127
2128 spin_lock_irqsave(&ieee->lock, flags);
2129
2130 if ((ieee->ps == RTLLIB_PS_DISABLED ||
2131 ieee->iw_mode != IW_MODE_INFRA ||
2132 ieee->state != RTLLIB_LINKED)){
2133
2134 RT_TRACE(COMP_DBG, "=====>%s(): no need to ps,wake up!! ieee->ps is %d,ieee->iw_mode is %d,ieee->state is %d\n",
2135 __func__,ieee->ps,ieee->iw_mode,ieee->state);
2136 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2137
2138 rtllib_sta_wakeup(ieee, 1);
2139
2140 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2141 }
2142
2143 sleep = rtllib_sta_ps_sleep(ieee, &time);
2144 /* 2 wake, 1 sleep, 0 do nothing */
2145 if (sleep == 0)
2146 {
2147 goto out;
2148 }
2149 if (sleep == 1){
2150 if (ieee->sta_sleep == LPS_IS_SLEEP){
2151 ieee->enter_sleep_state(ieee->dev, time);
2152 }
2153
2154 else if (ieee->sta_sleep == LPS_IS_WAKE){
2155 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2156
2157 if (ieee->ps_is_queue_empty(ieee->dev)){
2158 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2159 ieee->ack_tx_to_ieee = 1;
2160 rtllib_sta_ps_send_null_frame(ieee,1);
2161 ieee->ps_time = time;
2162 }
2163 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2164
2165 }
2166
2167 ieee->bAwakePktSent = false;
2168
2169 }else if (sleep == 2){
2170 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2171
2172 rtllib_sta_wakeup(ieee,1);
2173
2174 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2175 }
2176
2177 out:
2178 spin_unlock_irqrestore(&ieee->lock, flags);
2179
2180 }
2181
2182 void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2183 {
2184 if (ieee->sta_sleep == LPS_IS_WAKE){
2185 if (nl){
2186 if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2187 {
2188 ieee->ack_tx_to_ieee = 1;
2189 rtllib_sta_ps_send_null_frame(ieee, 0);
2190 }
2191 else
2192 {
2193 ieee->ack_tx_to_ieee = 1;
2194 rtllib_sta_ps_send_pspoll_frame(ieee);
2195 }
2196 }
2197 return;
2198
2199 }
2200
2201 if (ieee->sta_sleep == LPS_IS_SLEEP)
2202 ieee->sta_wake_up(ieee->dev);
2203 if (nl){
2204 /*
2205 ieee->ack_tx_to_ieee = 1;
2206 printk("%s(3): notify AP we are awaked ++++++++++ SendNullFunctionData\n", __func__);
2207 rtllib_sta_ps_send_null_frame(ieee, 0);
2208 */
2209 if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2210 {
2211 ieee->ack_tx_to_ieee = 1;
2212 rtllib_sta_ps_send_null_frame(ieee, 0);
2213 }
2214 else
2215 {
2216 ieee->ack_tx_to_ieee = 1;
2217 ieee->polling = true;
2218 rtllib_sta_ps_send_pspoll_frame(ieee);
2219 }
2220
2221 } else {
2222 ieee->sta_sleep = LPS_IS_WAKE;
2223 ieee->polling = false;
2224 }
2225 }
2226
2227 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2228 {
2229 unsigned long flags,flags2;
2230
2231 spin_lock_irqsave(&ieee->lock, flags);
2232
2233 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND){
2234 /* Null frame with PS bit set */
2235 if (success){
2236 ieee->sta_sleep = LPS_IS_SLEEP;
2237 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
2238 }
2239 /* if the card report not success we can't be sure the AP
2240 * has not RXed so we can't assume the AP believe us awake
2241 */
2242 } else {/* 21112005 - tx again null without PS bit if lost */
2243
2244 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success){
2245 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2246 if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2247 {
2248 rtllib_sta_ps_send_null_frame(ieee, 0);
2249 }
2250 else
2251 {
2252 rtllib_sta_ps_send_pspoll_frame(ieee);
2253 }
2254 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2255 }
2256 }
2257 spin_unlock_irqrestore(&ieee->lock, flags);
2258 }
2259
2260 void rtllib_process_action(struct rtllib_device* ieee, struct sk_buff* skb)
2261 {
2262 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2263 u8* act = rtllib_get_payload((struct rtllib_hdr *)header);
2264 u8 category = 0;
2265
2266 if (act == NULL) {
2267 RTLLIB_DEBUG(RTLLIB_DL_ERR, "error to get payload of action frame\n");
2268 return;
2269 }
2270
2271 category = *act;
2272 act ++;
2273 switch (category) {
2274 case ACT_CAT_BA:
2275 switch (*act) {
2276 case ACT_ADDBAREQ:
2277 rtllib_rx_ADDBAReq(ieee, skb);
2278 break;
2279 case ACT_ADDBARSP:
2280 rtllib_rx_ADDBARsp(ieee, skb);
2281 break;
2282 case ACT_DELBA:
2283 rtllib_rx_DELBA(ieee, skb);
2284 break;
2285 }
2286 break;
2287 default:
2288 break;
2289 }
2290 return;
2291 }
2292
2293 inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb, struct rtllib_rx_stats *rx_stats)
2294 {
2295 u16 errcode;
2296 int aid;
2297 u8* ies;
2298 struct rtllib_assoc_response_frame *assoc_resp;
2299 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2300
2301 RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2302 WLAN_FC_GET_STYPE(header->frame_ctl));
2303
2304 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2305 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2306 (ieee->iw_mode == IW_MODE_INFRA))
2307 {
2308 if (0 == (errcode=assoc_parse(ieee,skb, &aid))){
2309 struct rtllib_network *network = kzalloc(sizeof(struct rtllib_network), GFP_ATOMIC);
2310
2311 if (!network)
2312 return 1;
2313 memset(network,0,sizeof(*network));
2314 ieee->state=RTLLIB_LINKED;
2315 ieee->assoc_id = aid;
2316 ieee->softmac_stats.rx_ass_ok++;
2317 /* station support qos */
2318 /* Let the register setting defaultly with Legacy station */
2319 assoc_resp = (struct rtllib_assoc_response_frame*)skb->data;
2320 if (ieee->current_network.qos_data.supported == 1) {
2321 if (rtllib_parse_info_param(ieee,assoc_resp->info_element,\
2322 rx_stats->len - sizeof(*assoc_resp),\
2323 network,rx_stats)){
2324 kfree(network);
2325 return 1;
2326 }
2327 else
2328 {
2329 memcpy(ieee->pHTInfo->PeerHTCapBuf, network->bssht.bdHTCapBuf, network->bssht.bdHTCapLen);
2330 memcpy(ieee->pHTInfo->PeerHTInfoBuf, network->bssht.bdHTInfoBuf, network->bssht.bdHTInfoLen);
2331 }
2332 if (ieee->handle_assoc_response != NULL)
2333 ieee->handle_assoc_response(ieee->dev, (struct rtllib_assoc_response_frame*)header, network);
2334 kfree(network);
2335 }
2336
2337 if (ieee->assocresp_ies){
2338 kfree(ieee->assocresp_ies);
2339 ieee->assocresp_ies = NULL;
2340 }
2341 ies = &(assoc_resp->info_element[0].id);
2342 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
2343 ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len, GFP_ATOMIC);
2344 if (ieee->assocresp_ies)
2345 memcpy(ieee->assocresp_ies, ies, ieee->assocresp_ies_len);
2346 else{
2347 printk("%s()Warning: can't alloc memory for assocresp_ies\n", __func__);
2348 ieee->assocresp_ies_len = 0;
2349 }
2350 rtllib_associate_complete(ieee);
2351 } else {
2352 /* aid could not been allocated */
2353 ieee->softmac_stats.rx_ass_err++;
2354 printk(
2355 "Association response status code 0x%x\n",
2356 errcode);
2357 RTLLIB_DEBUG_MGMT(
2358 "Association response status code 0x%x\n",
2359 errcode);
2360 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT) {
2361 queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 0);
2362 } else {
2363 rtllib_associate_abort(ieee);
2364 }
2365 }
2366 }
2367
2368 return 0;
2369 }
2370
2371 inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb, struct rtllib_rx_stats *rx_stats)
2372 {
2373 u16 errcode;
2374 u8* challenge;
2375 int chlen=0;
2376 bool bSupportNmode = true, bHalfSupportNmode = false;
2377
2378 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
2379 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2380 (ieee->iw_mode == IW_MODE_INFRA)) {
2381 RTLLIB_DEBUG_MGMT("Received authentication response");
2382
2383 if (0 == (errcode=auth_parse(skb, &challenge, &chlen))) {
2384 if (ieee->open_wep || !challenge){
2385 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2386 ieee->softmac_stats.rx_auth_rs_ok++;
2387 if (!(ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE))
2388 {
2389 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev))
2390 {
2391 if (IsHTHalfNmodeAPs(ieee))
2392 {
2393 bSupportNmode = true;
2394 bHalfSupportNmode = true;
2395 }
2396 else
2397 {
2398 bSupportNmode = false;
2399 bHalfSupportNmode = false;
2400 }
2401 }
2402 }
2403 /* Dummy wirless mode setting to avoid encryption issue */
2404 if (bSupportNmode) {
2405 ieee->SetWirelessMode(ieee->dev, \
2406 ieee->current_network.mode);
2407 }else{
2408 /*TODO*/
2409 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2410 }
2411
2412 if (ieee->current_network.mode == IEEE_N_24G && bHalfSupportNmode == true)
2413 {
2414 printk("===============>entern half N mode\n");
2415 ieee->bHalfWirelessN24GMode = true;
2416 }
2417 else
2418 ieee->bHalfWirelessN24GMode = false;
2419
2420 rtllib_associate_step2(ieee);
2421 }else{
2422 rtllib_auth_challenge(ieee, challenge, chlen);
2423 }
2424 }else{
2425 ieee->softmac_stats.rx_auth_rs_err++;
2426 RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",errcode);
2427
2428 printk("Authentication respose status code 0x%x",errcode);
2429 rtllib_associate_abort(ieee);
2430 }
2431
2432 }else if (ieee->iw_mode == IW_MODE_MASTER){
2433 rtllib_rx_auth_rq(ieee, skb);
2434 }
2435 }
2436
2437 return 0;
2438 }
2439
2440 inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2441 {
2442 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2443
2444 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2445 return 0;
2446
2447 /* FIXME for now repeat all the association procedure
2448 * both for disassociation and deauthentication
2449 */
2450 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2451 ieee->state == RTLLIB_LINKED &&
2452 (ieee->iw_mode == IW_MODE_INFRA)) {
2453 printk(KERN_INFO "==========>received disassoc/deauth(%x) "
2454 "frame, reason code:%x\n",
2455 WLAN_FC_GET_STYPE(header->frame_ctl),
2456 ((struct rtllib_disassoc*)skb->data)->reason);
2457 ieee->state = RTLLIB_ASSOCIATING;
2458 ieee->softmac_stats.reassoc++;
2459 ieee->is_roaming = true;
2460 ieee->LinkDetectInfo.bBusyTraffic = false;
2461 rtllib_disassociate(ieee);
2462 RemovePeerTS(ieee, header->addr2);
2463 if (ieee->LedControlHandler != NULL)
2464 ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK);
2465
2466 if (!(ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_CCMP|SEC_ALG_TKIP)))
2467 queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 5);
2468 }
2469
2470 return 0;
2471 }
2472
2473 inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee, struct sk_buff *skb,
2474 struct rtllib_rx_stats *rx_stats, u16 type,
2475 u16 stype)
2476 {
2477 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2478
2479 if (!ieee->proto_started)
2480 return 0;
2481
2482 switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
2483
2484 case RTLLIB_STYPE_ASSOC_RESP:
2485 case RTLLIB_STYPE_REASSOC_RESP:
2486
2487 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2488 return 1;
2489
2490 break;
2491
2492 case RTLLIB_STYPE_ASSOC_REQ:
2493 case RTLLIB_STYPE_REASSOC_REQ:
2494
2495 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2496 ieee->iw_mode == IW_MODE_MASTER)
2497
2498 rtllib_rx_assoc_rq(ieee, skb);
2499 break;
2500
2501 case RTLLIB_STYPE_AUTH:
2502
2503 rtllib_rx_auth(ieee, skb, rx_stats);
2504
2505 break;
2506 case RTLLIB_STYPE_DISASSOC:
2507 case RTLLIB_STYPE_DEAUTH:
2508
2509 rtllib_rx_deauth(ieee, skb);
2510
2511 break;
2512
2513 case RTLLIB_STYPE_MANAGE_ACT:
2514 rtllib_process_action(ieee,skb);
2515 break;
2516 default:
2517 return -1;
2518 break;
2519 }
2520
2521 return 0;
2522 }
2523
2524 /* following are for a simplier TX queue management.
2525 * Instead of using netif_[stop/wake]_queue the driver
2526 * will uses these two function (plus a reset one), that
2527 * will internally uses the kernel netif_* and takes
2528 * care of the ieee802.11 fragmentation.
2529 * So the driver receives a fragment per time and might
2530 * call the stop function when it want without take care
2531 * to have enought room to TX an entire packet.
2532 * This might be useful if each fragment need it's own
2533 * descriptor, thus just keep a total free memory > than
2534 * the max fragmentation treshold is not enought.. If the
2535 * ieee802.11 stack passed a TXB struct then you needed
2536 * to keep N free descriptors where
2537 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2538 * In this way you need just one and the 802.11 stack
2539 * will take care of buffering fragments and pass them to
2540 * to the driver later, when it wakes the queue.
2541 */
2542 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2543 {
2544
2545 unsigned int queue_index = txb->queue_index;
2546 unsigned long flags;
2547 int i;
2548 struct cb_desc *tcb_desc = NULL;
2549 unsigned long queue_len = 0;
2550
2551 spin_lock_irqsave(&ieee->lock,flags);
2552
2553 /* called with 2nd parm 0, no tx mgmt lock required */
2554 rtllib_sta_wakeup(ieee,0);
2555
2556 /* update the tx status */
2557 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE);
2558 if (tcb_desc->bMulticast) {
2559 ieee->stats.multicast++;
2560 }
2561
2562 /* if xmit available, just xmit it immediately, else just insert it to the wait queue */
2563 for (i = 0; i < txb->nr_frags; i++) {
2564 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
2565 if ((queue_len != 0) ||\
2566 (!ieee->check_nic_enough_desc(ieee->dev,queue_index))||\
2567 (ieee->queue_stop)) {
2568 /* insert the skb packet to the wait queue */
2569 /* as for the completion function, it does not need
2570 * to check it any more.
2571 * */
2572 if (queue_len < 200)
2573 {
2574 skb_queue_tail(&ieee->skb_waitQ[queue_index], txb->fragments[i]);
2575 }else{
2576 kfree_skb(txb->fragments[i]);
2577 }
2578 }else{
2579 ieee->softmac_data_hard_start_xmit(
2580 txb->fragments[i],
2581 ieee->dev,ieee->rate);
2582 }
2583 }
2584
2585 rtllib_txb_free(txb);
2586
2587 spin_unlock_irqrestore(&ieee->lock,flags);
2588
2589 }
2590
2591 /* called with ieee->lock acquired */
2592 void rtllib_resume_tx(struct rtllib_device *ieee)
2593 {
2594 int i;
2595 for (i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {
2596
2597 if (ieee->queue_stop){
2598 ieee->tx_pending.frag = i;
2599 return;
2600 }else{
2601
2602 ieee->softmac_data_hard_start_xmit(
2603 ieee->tx_pending.txb->fragments[i],
2604 ieee->dev,ieee->rate);
2605 ieee->stats.tx_packets++;
2606 }
2607 }
2608
2609 rtllib_txb_free(ieee->tx_pending.txb);
2610 ieee->tx_pending.txb = NULL;
2611 }
2612
2613
2614 void rtllib_reset_queue(struct rtllib_device *ieee)
2615 {
2616 unsigned long flags;
2617
2618 spin_lock_irqsave(&ieee->lock,flags);
2619 init_mgmt_queue(ieee);
2620 if (ieee->tx_pending.txb){
2621 rtllib_txb_free(ieee->tx_pending.txb);
2622 ieee->tx_pending.txb = NULL;
2623 }
2624 ieee->queue_stop = 0;
2625 spin_unlock_irqrestore(&ieee->lock,flags);
2626
2627 }
2628
2629 void rtllib_wake_queue(struct rtllib_device *ieee)
2630 {
2631
2632 unsigned long flags;
2633 struct sk_buff *skb;
2634 struct rtllib_hdr_3addr *header;
2635
2636 spin_lock_irqsave(&ieee->lock,flags);
2637 if (! ieee->queue_stop) goto exit;
2638
2639 ieee->queue_stop = 0;
2640
2641 if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
2642 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
2643
2644 header = (struct rtllib_hdr_3addr *) skb->data;
2645
2646 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2647
2648 if (ieee->seq_ctrl[0] == 0xFFF)
2649 ieee->seq_ctrl[0] = 0;
2650 else
2651 ieee->seq_ctrl[0]++;
2652
2653 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
2654 }
2655 }
2656 if (!ieee->queue_stop && ieee->tx_pending.txb)
2657 rtllib_resume_tx(ieee);
2658
2659 if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
2660 ieee->softmac_stats.swtxawake++;
2661 netif_wake_queue(ieee->dev);
2662 }
2663
2664 exit :
2665 spin_unlock_irqrestore(&ieee->lock,flags);
2666 }
2667
2668
2669 void rtllib_stop_queue(struct rtllib_device *ieee)
2670 {
2671
2672 if (! netif_queue_stopped(ieee->dev)){
2673 netif_stop_queue(ieee->dev);
2674 ieee->softmac_stats.swtxstop++;
2675 }
2676 ieee->queue_stop = 1;
2677
2678 }
2679
2680 void rtllib_stop_all_queues(struct rtllib_device *ieee)
2681 {
2682 unsigned int i;
2683 for (i=0; i < ieee->dev->num_tx_queues; i++)
2684 netdev_get_tx_queue(ieee->dev,i)->trans_start = jiffies;
2685
2686 netif_tx_stop_all_queues(ieee->dev);
2687 }
2688
2689 void rtllib_wake_all_queues(struct rtllib_device *ieee)
2690 {
2691 netif_tx_wake_all_queues(ieee->dev);
2692 }
2693
2694 inline void rtllib_randomize_cell(struct rtllib_device *ieee)
2695 {
2696
2697 get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
2698
2699 /* an IBSS cell address must have the two less significant
2700 * bits of the first byte = 2
2701 */
2702 ieee->current_network.bssid[0] &= ~0x01;
2703 ieee->current_network.bssid[0] |= 0x02;
2704 }
2705
2706 /* called in user context only */
2707 void rtllib_start_master_bss(struct rtllib_device *ieee)
2708 {
2709 ieee->assoc_id = 1;
2710
2711 if (ieee->current_network.ssid_len == 0){
2712 strncpy(ieee->current_network.ssid,
2713 RTLLIB_DEFAULT_TX_ESSID,
2714 IW_ESSID_MAX_SIZE);
2715
2716 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2717 ieee->ssid_set = 1;
2718 }
2719
2720 memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2721
2722 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2723 ieee->state = RTLLIB_LINKED;
2724 ieee->link_change(ieee->dev);
2725 notify_wx_assoc_event(ieee);
2726
2727 if (ieee->data_hard_resume)
2728 ieee->data_hard_resume(ieee->dev);
2729
2730 netif_carrier_on(ieee->dev);
2731 }
2732
2733 void rtllib_start_monitor_mode(struct rtllib_device *ieee)
2734 {
2735 /* reset hardware status */
2736 if (ieee->raw_tx){
2737 if (ieee->data_hard_resume)
2738 ieee->data_hard_resume(ieee->dev);
2739
2740 netif_carrier_on(ieee->dev);
2741 }
2742 }
2743
2744 void rtllib_start_ibss_wq(void *data)
2745 {
2746 struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, start_ibss_wq);
2747 /* iwconfig mode ad-hoc will schedule this and return
2748 * on the other hand this will block further iwconfig SET
2749 * operations because of the wx_sem hold.
2750 * Anyway some most set operations set a flag to speed-up
2751 * (abort) this wq (when syncro scanning) before sleeping
2752 * on the semaphore
2753 */
2754 if (!ieee->proto_started){
2755 printk("==========oh driver down return\n");
2756 return;
2757 }
2758 down(&ieee->wx_sem);
2759
2760 if (ieee->current_network.ssid_len == 0){
2761 strcpy(ieee->current_network.ssid,RTLLIB_DEFAULT_TX_ESSID);
2762 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2763 ieee->ssid_set = 1;
2764 }
2765
2766 ieee->state = RTLLIB_NOLINK;
2767 ieee->mode = IEEE_G;
2768 /* check if we have this cell in our network list */
2769 rtllib_softmac_check_all_nets(ieee);
2770
2771
2772 /* if not then the state is not linked. Maybe the user swithced to
2773 * ad-hoc mode just after being in monitor mode, or just after
2774 * being very few time in managed mode (so the card have had no
2775 * time to scan all the chans..) or we have just run up the iface
2776 * after setting ad-hoc mode. So we have to give another try..
2777 * Here, in ibss mode, should be safe to do this without extra care
2778 * (in bss mode we had to make sure no-one tryed to associate when
2779 * we had just checked the ieee->state and we was going to start the
2780 * scan) beacause in ibss mode the rtllib_new_net function, when
2781 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2782 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2783 * scan, that will stop at the first round because it sees the state
2784 * associated.
2785 */
2786 if (ieee->state == RTLLIB_NOLINK)
2787 rtllib_start_scan_syncro(ieee, 0);
2788
2789 /* the network definitively is not here.. create a new cell */
2790 if (ieee->state == RTLLIB_NOLINK){
2791 printk("creating new IBSS cell\n");
2792 ieee->current_network.channel = ieee->IbssStartChnl;
2793 if (!ieee->wap_set)
2794 rtllib_randomize_cell(ieee);
2795
2796 if (ieee->modulation & RTLLIB_CCK_MODULATION){
2797
2798 ieee->current_network.rates_len = 4;
2799
2800 ieee->current_network.rates[0] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2801 ieee->current_network.rates[1] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2802 ieee->current_network.rates[2] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2803 ieee->current_network.rates[3] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
2804
2805 }else
2806 ieee->current_network.rates_len = 0;
2807
2808 if (ieee->modulation & RTLLIB_OFDM_MODULATION){
2809 ieee->current_network.rates_ex_len = 8;
2810
2811 /*ieee->current_network.rates_ex[0] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
2812 ieee->current_network.rates_ex[1] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
2813 ieee->current_network.rates_ex[2] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
2814 ieee->current_network.rates_ex[3] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
2815 ieee->current_network.rates_ex[4] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
2816 ieee->current_network.rates_ex[5] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
2817 ieee->current_network.rates_ex[6] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
2818 ieee->current_network.rates_ex[7] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;*/
2819
2820 ieee->current_network.rates_ex[0] = RTLLIB_OFDM_RATE_6MB;
2821 ieee->current_network.rates_ex[1] = RTLLIB_OFDM_RATE_9MB;
2822 ieee->current_network.rates_ex[2] = RTLLIB_OFDM_RATE_12MB;
2823 ieee->current_network.rates_ex[3] = RTLLIB_OFDM_RATE_18MB;
2824 ieee->current_network.rates_ex[4] = RTLLIB_OFDM_RATE_24MB;
2825 ieee->current_network.rates_ex[5] = RTLLIB_OFDM_RATE_36MB;
2826 ieee->current_network.rates_ex[6] = RTLLIB_OFDM_RATE_48MB;
2827 ieee->current_network.rates_ex[7] = RTLLIB_OFDM_RATE_54MB;
2828
2829 ieee->rate = 108;
2830 }else{
2831 ieee->current_network.rates_ex_len = 0;
2832 ieee->rate = 22;
2833 }
2834
2835 ieee->current_network.qos_data.supported = 0;
2836 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2837 ieee->current_network.mode = ieee->mode;
2838 ieee->current_network.atim_window = 0;
2839 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2840 }
2841
2842 printk("%s(): ieee->mode = %d\n", __func__, ieee->mode);
2843 if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2844 HTUseDefaultSetting(ieee);
2845 else
2846 ieee->pHTInfo->bCurrentHTSupport = false;
2847
2848 ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS, (u8 *)(&ieee->state));
2849
2850 ieee->state = RTLLIB_LINKED;
2851 ieee->link_change(ieee->dev);
2852
2853 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2854 if (ieee->LedControlHandler != NULL)
2855 ieee->LedControlHandler(ieee->dev,LED_CTL_LINK);
2856
2857 rtllib_start_send_beacons(ieee);
2858
2859 notify_wx_assoc_event(ieee);
2860
2861 if (ieee->data_hard_resume)
2862 ieee->data_hard_resume(ieee->dev);
2863
2864 netif_carrier_on(ieee->dev);
2865
2866 up(&ieee->wx_sem);
2867 }
2868
2869 inline void rtllib_start_ibss(struct rtllib_device *ieee)
2870 {
2871 queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq, MSECS(150));
2872 }
2873
2874 /* this is called only in user context, with wx_sem held */
2875 void rtllib_start_bss(struct rtllib_device *ieee)
2876 {
2877 unsigned long flags;
2878 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
2879 {
2880 if (! ieee->bGlobalDomain)
2881 {
2882 return;
2883 }
2884 }
2885 /* check if we have already found the net we
2886 * are interested in (if any).
2887 * if not (we are disassociated and we are not
2888 * in associating / authenticating phase) start the background scanning.
2889 */
2890 rtllib_softmac_check_all_nets(ieee);
2891
2892 /* ensure no-one start an associating process (thus setting
2893 * the ieee->state to rtllib_ASSOCIATING) while we
2894 * have just cheked it and we are going to enable scan.
2895 * The rtllib_new_net function is always called with
2896 * lock held (from both rtllib_softmac_check_all_nets and
2897 * the rx path), so we cannot be in the middle of such function
2898 */
2899 spin_lock_irqsave(&ieee->lock, flags);
2900
2901 if (ieee->state == RTLLIB_NOLINK) {
2902 rtllib_start_scan(ieee);
2903 }
2904 spin_unlock_irqrestore(&ieee->lock, flags);
2905 }
2906
2907 void rtllib_link_change_wq(void *data)
2908 {
2909 struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, link_change_wq);
2910 ieee->link_change(ieee->dev);
2911 }
2912 /* called only in userspace context */
2913 void rtllib_disassociate(struct rtllib_device *ieee)
2914 {
2915 netif_carrier_off(ieee->dev);
2916 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2917 rtllib_reset_queue(ieee);
2918
2919 if (ieee->data_hard_stop)
2920 ieee->data_hard_stop(ieee->dev);
2921 if (IS_DOT11D_ENABLE(ieee))
2922 Dot11d_Reset(ieee);
2923 ieee->state = RTLLIB_NOLINK;
2924 ieee->is_set_key = false;
2925 ieee->wap_set = 0;
2926
2927 queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);
2928
2929 notify_wx_assoc_event(ieee);
2930 }
2931
2932 void rtllib_associate_retry_wq(void *data)
2933 {
2934 struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, associate_retry_wq);
2935 unsigned long flags;
2936
2937 down(&ieee->wx_sem);
2938 if (!ieee->proto_started)
2939 goto exit;
2940
2941 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2942 goto exit;
2943
2944 /* until we do not set the state to RTLLIB_NOLINK
2945 * there are no possibility to have someone else trying
2946 * to start an association procdure (we get here with
2947 * ieee->state = RTLLIB_ASSOCIATING).
2948 * When we set the state to RTLLIB_NOLINK it is possible
2949 * that the RX path run an attempt to associate, but
2950 * both rtllib_softmac_check_all_nets and the
2951 * RX path works with ieee->lock held so there are no
2952 * problems. If we are still disassociated then start a scan.
2953 * the lock here is necessary to ensure no one try to start
2954 * an association procedure when we have just checked the
2955 * state and we are going to start the scan.
2956 */
2957 ieee->beinretry = true;
2958 ieee->state = RTLLIB_NOLINK;
2959
2960 rtllib_softmac_check_all_nets(ieee);
2961
2962 spin_lock_irqsave(&ieee->lock, flags);
2963
2964 if (ieee->state == RTLLIB_NOLINK)
2965 {
2966 rtllib_start_scan(ieee);
2967 }
2968 spin_unlock_irqrestore(&ieee->lock, flags);
2969
2970 ieee->beinretry = false;
2971 exit:
2972 up(&ieee->wx_sem);
2973 }
2974
2975 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2976 {
2977 u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff};
2978
2979 struct sk_buff *skb;
2980 struct rtllib_probe_response *b;
2981 skb = rtllib_probe_resp(ieee, broadcast_addr);
2982
2983 if (!skb)
2984 return NULL;
2985
2986 b = (struct rtllib_probe_response *) skb->data;
2987 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2988
2989 return skb;
2990
2991 }
2992
2993 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2994 {
2995 struct sk_buff *skb;
2996 struct rtllib_probe_response *b;
2997
2998 skb = rtllib_get_beacon_(ieee);
2999 if (!skb)
3000 return NULL;
3001
3002 b = (struct rtllib_probe_response *) skb->data;
3003 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
3004
3005 if (ieee->seq_ctrl[0] == 0xFFF)
3006 ieee->seq_ctrl[0] = 0;
3007 else
3008 ieee->seq_ctrl[0]++;
3009
3010 return skb;
3011 }
3012
3013 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag, u8 shutdown)
3014 {
3015 rtllib_stop_scan_syncro(ieee);
3016 down(&ieee->wx_sem);
3017 rtllib_stop_protocol(ieee,shutdown);
3018 up(&ieee->wx_sem);
3019 }
3020
3021
3022 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
3023 {
3024 if (!ieee->proto_started)
3025 return;
3026
3027 if (shutdown){
3028 ieee->proto_started = 0;
3029 ieee->proto_stoppping = 1;
3030 if (ieee->rtllib_ips_leave != NULL)
3031 ieee->rtllib_ips_leave(ieee->dev);
3032 }
3033
3034 rtllib_stop_send_beacons(ieee);
3035 del_timer_sync(&ieee->associate_timer);
3036 cancel_delayed_work(&ieee->associate_retry_wq);
3037 cancel_delayed_work(&ieee->start_ibss_wq);
3038 cancel_delayed_work(&ieee->link_change_wq);
3039 rtllib_stop_scan(ieee);
3040
3041 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
3042 ieee->state = RTLLIB_NOLINK;
3043
3044 if (ieee->state == RTLLIB_LINKED){
3045 if (ieee->iw_mode == IW_MODE_INFRA)
3046 SendDisassociation(ieee,1,deauth_lv_ss);
3047 rtllib_disassociate(ieee);
3048 }
3049
3050 if (shutdown){
3051 RemoveAllTS(ieee);
3052 ieee->proto_stoppping = 0;
3053 }
3054 if (ieee->assocreq_ies) {
3055 kfree(ieee->assocreq_ies);
3056 ieee->assocreq_ies = NULL;
3057 ieee->assocreq_ies_len = 0;
3058 }
3059 if (ieee->assocresp_ies) {
3060 kfree(ieee->assocresp_ies);
3061 ieee->assocresp_ies = NULL;
3062 ieee->assocresp_ies_len = 0;
3063 }
3064 }
3065
3066 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
3067 {
3068 down(&ieee->wx_sem);
3069 rtllib_start_protocol(ieee);
3070 up(&ieee->wx_sem);
3071 }
3072
3073 void rtllib_start_protocol(struct rtllib_device *ieee)
3074 {
3075 short ch = 0;
3076 int i = 0;
3077
3078 rtllib_update_active_chan_map(ieee);
3079
3080 if (ieee->proto_started)
3081 return;
3082
3083 ieee->proto_started = 1;
3084
3085 if (ieee->current_network.channel == 0) {
3086 do {
3087 ch++;
3088 if (ch > MAX_CHANNEL_NUMBER)
3089 return; /* no channel found */
3090 } while(!ieee->active_channel_map[ch]);
3091 ieee->current_network.channel = ch;
3092 }
3093
3094 if (ieee->current_network.beacon_interval == 0)
3095 ieee->current_network.beacon_interval = 100;
3096
3097 for (i = 0; i < 17; i++) {
3098 ieee->last_rxseq_num[i] = -1;
3099 ieee->last_rxfrag_num[i] = -1;
3100 ieee->last_packet_time[i] = 0;
3101 }
3102
3103 if (ieee->UpdateBeaconInterruptHandler)
3104 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
3105
3106 ieee->wmm_acm = 0;
3107 /* if the user set the MAC of the ad-hoc cell and then
3108 * switch to managed mode, shall we make sure that association
3109 * attempts does not fail just because the user provide the essid
3110 * and the nic is still checking for the AP MAC ??
3111 */
3112 if (ieee->iw_mode == IW_MODE_INFRA) {
3113 rtllib_start_bss(ieee);
3114 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
3115 if (ieee->UpdateBeaconInterruptHandler)
3116 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
3117
3118 rtllib_start_ibss(ieee);
3119
3120 } else if (ieee->iw_mode == IW_MODE_MASTER) {
3121 rtllib_start_master_bss(ieee);
3122 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
3123 rtllib_start_monitor_mode(ieee);
3124 }
3125 }
3126
3127 void rtllib_softmac_init(struct rtllib_device *ieee)
3128 {
3129 int i;
3130 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
3131
3132 ieee->state = RTLLIB_NOLINK;
3133 for (i = 0; i < 5; i++) {
3134 ieee->seq_ctrl[i] = 0;
3135 }
3136 ieee->pDot11dInfo = kmalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
3137 if (!ieee->pDot11dInfo)
3138 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
3139 memset(ieee->pDot11dInfo, 0, sizeof(struct rt_dot11d_info));
3140 ieee->LinkDetectInfo.SlotIndex = 0;
3141 ieee->LinkDetectInfo.SlotNum = 2;
3142 ieee->LinkDetectInfo.NumRecvBcnInPeriod=0;
3143 ieee->LinkDetectInfo.NumRecvDataInPeriod=0;
3144 ieee->LinkDetectInfo.NumTxOkInPeriod =0;
3145 ieee->LinkDetectInfo.NumRxOkInPeriod =0;
3146 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod=0;
3147 ieee->bIsAggregateFrame = false;
3148 ieee->assoc_id = 0;
3149 ieee->queue_stop = 0;
3150 ieee->scanning_continue = 0;
3151 ieee->softmac_features = 0;
3152 ieee->wap_set = 0;
3153 ieee->ssid_set = 0;
3154 ieee->proto_started = 0;
3155 ieee->proto_stoppping = 0;
3156 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3157 ieee->rate = 22;
3158 ieee->ps = RTLLIB_PS_DISABLED;
3159 ieee->sta_sleep = LPS_IS_WAKE;
3160
3161 ieee->Regdot11HTOperationalRateSet[0]= 0xff;
3162 ieee->Regdot11HTOperationalRateSet[1]= 0xff;
3163 ieee->Regdot11HTOperationalRateSet[4]= 0x01;
3164
3165 ieee->Regdot11TxHTOperationalRateSet[0]= 0xff;
3166 ieee->Regdot11TxHTOperationalRateSet[1]= 0xff;
3167 ieee->Regdot11TxHTOperationalRateSet[4]= 0x01;
3168
3169 ieee->FirstIe_InScan = false;
3170 ieee->actscanning = false;
3171 ieee->beinretry = false;
3172 ieee->is_set_key = false;
3173 init_mgmt_queue(ieee);
3174
3175 ieee->sta_edca_param[0] = 0x0000A403;
3176 ieee->sta_edca_param[1] = 0x0000A427;
3177 ieee->sta_edca_param[2] = 0x005E4342;
3178 ieee->sta_edca_param[3] = 0x002F3262;
3179 ieee->aggregation = true;
3180 ieee->enable_rx_imm_BA = 1;
3181 ieee->tx_pending.txb = NULL;
3182
3183 _setup_timer(&ieee->associate_timer,
3184 rtllib_associate_abort_cb,
3185 (unsigned long) ieee);
3186
3187 _setup_timer(&ieee->beacon_timer,
3188 rtllib_send_beacon_cb,
3189 (unsigned long) ieee);
3190
3191
3192 ieee->wq = create_workqueue(DRV_NAME);
3193
3194 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,(void*)rtllib_link_change_wq,ieee);
3195 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,(void*)rtllib_start_ibss_wq,ieee);
3196 INIT_WORK_RSL(&ieee->associate_complete_wq, (void*)rtllib_associate_complete_wq,ieee);
3197 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq, (void*)rtllib_associate_procedure_wq,ieee);
3198 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,(void*)rtllib_softmac_scan_wq,ieee);
3199 INIT_DELAYED_WORK_RSL(&ieee->softmac_hint11d_wq,(void*)rtllib_softmac_hint11d_wq,ieee);
3200 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq, (void*)rtllib_associate_retry_wq,ieee);
3201 INIT_WORK_RSL(&ieee->wx_sync_scan_wq,(void*)rtllib_wx_sync_scan_wq,ieee);
3202
3203 sema_init(&ieee->wx_sem, 1);
3204 sema_init(&ieee->scan_sem, 1);
3205 sema_init(&ieee->ips_sem,1);
3206
3207 spin_lock_init(&ieee->mgmt_tx_lock);
3208 spin_lock_init(&ieee->beacon_lock);
3209
3210 tasklet_init(&ieee->ps_task,
3211 (void(*)(unsigned long)) rtllib_sta_ps,
3212 (unsigned long)ieee);
3213
3214 }
3215
3216 void rtllib_softmac_free(struct rtllib_device *ieee)
3217 {
3218 down(&ieee->wx_sem);
3219 if (NULL != ieee->pDot11dInfo)
3220 {
3221 kfree(ieee->pDot11dInfo);
3222 ieee->pDot11dInfo = NULL;
3223 }
3224 del_timer_sync(&ieee->associate_timer);
3225
3226 cancel_delayed_work(&ieee->associate_retry_wq);
3227 destroy_workqueue(ieee->wq);
3228 up(&ieee->wx_sem);
3229 }
3230
3231 /********************************************************
3232 * Start of WPA code. *
3233 * this is stolen from the ipw2200 driver *
3234 ********************************************************/
3235
3236
3237 static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3238 {
3239 /* This is called when wpa_supplicant loads and closes the driver
3240 * interface. */
3241 printk("%s WPA\n",value ? "enabling" : "disabling");
3242 ieee->wpa_enabled = value;
3243 memset(ieee->ap_mac_addr, 0, 6);
3244 return 0;
3245 }
3246
3247
3248 void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie, int wpa_ie_len)
3249 {
3250 /* make sure WPA is enabled */
3251 rtllib_wpa_enable(ieee, 1);
3252
3253 rtllib_disassociate(ieee);
3254 }
3255
3256
3257 static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3258 {
3259
3260 int ret = 0;
3261
3262 switch (command) {
3263 case IEEE_MLME_STA_DEAUTH:
3264 break;
3265
3266 case IEEE_MLME_STA_DISASSOC:
3267 rtllib_disassociate(ieee);
3268 break;
3269
3270 default:
3271 printk("Unknown MLME request: %d\n", command);
3272 ret = -EOPNOTSUPP;
3273 }
3274
3275 return ret;
3276 }
3277
3278
3279 static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3280 struct ieee_param *param, int plen)
3281 {
3282 u8 *buf;
3283
3284 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3285 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3286 return -EINVAL;
3287
3288 if (param->u.wpa_ie.len) {
3289 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
3290 if (buf == NULL)
3291 return -ENOMEM;
3292
3293 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
3294 kfree(ieee->wpa_ie);
3295 ieee->wpa_ie = buf;
3296 ieee->wpa_ie_len = param->u.wpa_ie.len;
3297 } else {
3298 kfree(ieee->wpa_ie);
3299 ieee->wpa_ie = NULL;
3300 ieee->wpa_ie_len = 0;
3301 }
3302
3303 rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3304 return 0;
3305 }
3306
3307 #define AUTH_ALG_OPEN_SYSTEM 0x1
3308 #define AUTH_ALG_SHARED_KEY 0x2
3309 #define AUTH_ALG_LEAP 0x4
3310 static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3311 {
3312
3313 struct rtllib_security sec = {
3314 .flags = SEC_AUTH_MODE,
3315 };
3316 int ret = 0;
3317
3318 if (value & AUTH_ALG_SHARED_KEY) {
3319 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3320 ieee->open_wep = 0;
3321 ieee->auth_mode = 1;
3322 } else if (value & AUTH_ALG_OPEN_SYSTEM){
3323 sec.auth_mode = WLAN_AUTH_OPEN;
3324 ieee->open_wep = 1;
3325 ieee->auth_mode = 0;
3326 }
3327 else if (value & AUTH_ALG_LEAP){
3328 sec.auth_mode = WLAN_AUTH_LEAP >> 6;
3329 ieee->open_wep = 1;
3330 ieee->auth_mode = 2;
3331 }
3332
3333
3334 if (ieee->set_security)
3335 ieee->set_security(ieee->dev, &sec);
3336
3337 return ret;
3338 }
3339
3340 static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3341 {
3342 int ret=0;
3343 unsigned long flags;
3344
3345 switch (name) {
3346 case IEEE_PARAM_WPA_ENABLED:
3347 ret = rtllib_wpa_enable(ieee, value);
3348 break;
3349
3350 case IEEE_PARAM_TKIP_COUNTERMEASURES:
3351 ieee->tkip_countermeasures=value;
3352 break;
3353
3354 case IEEE_PARAM_DROP_UNENCRYPTED:
3355 {
3356 /* HACK:
3357 *
3358 * wpa_supplicant calls set_wpa_enabled when the driver
3359 * is loaded and unloaded, regardless of if WPA is being
3360 * used. No other calls are made which can be used to
3361 * determine if encryption will be used or not prior to
3362 * association being expected. If encryption is not being
3363 * used, drop_unencrypted is set to false, else true -- we
3364 * can use this to determine if the CAP_PRIVACY_ON bit should
3365 * be set.
3366 */
3367 struct rtllib_security sec = {
3368 .flags = SEC_ENABLED,
3369 .enabled = value,
3370 };
3371 ieee->drop_unencrypted = value;
3372 /* We only change SEC_LEVEL for open mode. Others
3373 * are set by ipw_wpa_set_encryption.
3374 */
3375 if (!value) {
3376 sec.flags |= SEC_LEVEL;
3377 sec.level = SEC_LEVEL_0;
3378 }
3379 else {
3380 sec.flags |= SEC_LEVEL;
3381 sec.level = SEC_LEVEL_1;
3382 }
3383 if (ieee->set_security)
3384 ieee->set_security(ieee->dev, &sec);
3385 break;
3386 }
3387
3388 case IEEE_PARAM_PRIVACY_INVOKED:
3389 ieee->privacy_invoked=value;
3390 break;
3391
3392 case IEEE_PARAM_AUTH_ALGS:
3393 ret = rtllib_wpa_set_auth_algs(ieee, value);
3394 break;
3395
3396 case IEEE_PARAM_IEEE_802_1X:
3397 ieee->ieee802_1x=value;
3398 break;
3399 case IEEE_PARAM_WPAX_SELECT:
3400 spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
3401 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
3402 break;
3403
3404 default:
3405 printk("Unknown WPA param: %d\n",name);
3406 ret = -EOPNOTSUPP;
3407 }
3408
3409 return ret;
3410 }
3411
3412 /* implementation borrowed from hostap driver */
3413 static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
3414 struct ieee_param *param, int param_len, u8 is_mesh)
3415 {
3416 int ret = 0;
3417 struct rtllib_crypto_ops *ops;
3418 struct rtllib_crypt_data **crypt;
3419
3420 struct rtllib_security sec = {
3421 .flags = 0,
3422 };
3423
3424 param->u.crypt.err = 0;
3425 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3426
3427 if (param_len !=
3428 (int) ((char *) param->u.crypt.key - (char *) param) +
3429 param->u.crypt.key_len) {
3430 printk("Len mismatch %d, %d\n", param_len,
3431 param->u.crypt.key_len);
3432 return -EINVAL;
3433 }
3434 if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
3435 param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
3436 param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
3437 if (param->u.crypt.idx >= WEP_KEYS)
3438 return -EINVAL;
3439 crypt = &ieee->crypt[param->u.crypt.idx];
3440 } else {
3441 return -EINVAL;
3442 }
3443
3444 if (strcmp(param->u.crypt.alg, "none") == 0) {
3445 if (crypt) {
3446 sec.enabled = 0;
3447 sec.level = SEC_LEVEL_0;
3448 sec.flags |= SEC_ENABLED | SEC_LEVEL;
3449 rtllib_crypt_delayed_deinit(ieee, crypt);
3450 }
3451 goto done;
3452 }
3453 sec.enabled = 1;
3454 sec.flags |= SEC_ENABLED;
3455
3456 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3457 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3458 strcmp(param->u.crypt.alg, "TKIP"))
3459 goto skip_host_crypt;
3460
3461 ops = rtllib_get_crypto_ops(param->u.crypt.alg);
3462 if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
3463 request_module("rtllib_crypt_wep");
3464 ops = rtllib_get_crypto_ops(param->u.crypt.alg);
3465 } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
3466 request_module("rtllib_crypt_tkip");
3467 ops = rtllib_get_crypto_ops(param->u.crypt.alg);
3468 } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
3469 request_module("rtllib_crypt_ccmp");
3470 ops = rtllib_get_crypto_ops(param->u.crypt.alg);
3471 }
3472 if (ops == NULL) {
3473 printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
3474 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3475 ret = -EINVAL;
3476 goto done;
3477 }
3478 if (*crypt == NULL || (*crypt)->ops != ops) {
3479 struct rtllib_crypt_data *new_crypt;
3480
3481 rtllib_crypt_delayed_deinit(ieee, crypt);
3482
3483 new_crypt = (struct rtllib_crypt_data *)
3484 kmalloc(sizeof(*new_crypt), GFP_KERNEL);
3485 if (new_crypt == NULL) {
3486 ret = -ENOMEM;
3487 goto done;
3488 }
3489 memset(new_crypt, 0, sizeof(struct rtllib_crypt_data));
3490 new_crypt->ops = ops;
3491 if (new_crypt->ops)
3492 new_crypt->priv =
3493 new_crypt->ops->init(param->u.crypt.idx);
3494
3495 if (new_crypt->priv == NULL) {
3496 kfree(new_crypt);
3497 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3498 ret = -EINVAL;
3499 goto done;
3500 }
3501
3502 *crypt = new_crypt;
3503 }
3504
3505 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3506 (*crypt)->ops->set_key(param->u.crypt.key,
3507 param->u.crypt.key_len, param->u.crypt.seq,
3508 (*crypt)->priv) < 0) {
3509 printk("key setting failed\n");
3510 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3511 ret = -EINVAL;
3512 goto done;
3513 }
3514
3515 skip_host_crypt:
3516 if (param->u.crypt.set_tx) {
3517 ieee->tx_keyidx = param->u.crypt.idx;
3518 sec.active_key = param->u.crypt.idx;
3519 sec.flags |= SEC_ACTIVE_KEY;
3520 } else
3521 sec.flags &= ~SEC_ACTIVE_KEY;
3522
3523 if (param->u.crypt.alg != NULL) {
3524 memcpy(sec.keys[param->u.crypt.idx],
3525 param->u.crypt.key,
3526 param->u.crypt.key_len);
3527 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3528 sec.flags |= (1 << param->u.crypt.idx);
3529
3530 if (strcmp(param->u.crypt.alg, "WEP") == 0) {
3531 sec.flags |= SEC_LEVEL;
3532 sec.level = SEC_LEVEL_1;
3533 } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
3534 sec.flags |= SEC_LEVEL;
3535 sec.level = SEC_LEVEL_2;
3536 } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
3537 sec.flags |= SEC_LEVEL;
3538 sec.level = SEC_LEVEL_3;
3539 }
3540 }
3541 done:
3542 if (ieee->set_security)
3543 ieee->set_security(ieee->dev, &sec);
3544
3545 /* Do not reset port if card is in Managed mode since resetting will
3546 * generate new IEEE 802.11 authentication which may end up in looping
3547 * with IEEE 802.1X. If your hardware requires a reset after WEP
3548 * configuration (for example... Prism2), implement the reset_port in
3549 * the callbacks structures used to initialize the 802.11 stack. */
3550 if (ieee->reset_on_keychange &&
3551 ieee->iw_mode != IW_MODE_INFRA &&
3552 ieee->reset_port &&
3553 ieee->reset_port(ieee->dev)) {
3554 printk("reset_port failed\n");
3555 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3556 return -EINVAL;
3557 }
3558
3559 return ret;
3560 }
3561
3562 inline struct sk_buff *rtllib_disauth_skb( struct rtllib_network *beacon,
3563 struct rtllib_device *ieee, u16 asRsn)
3564 {
3565 struct sk_buff *skb;
3566 struct rtllib_disauth *disauth;
3567 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3568
3569 skb = dev_alloc_skb(len);
3570 if (!skb) {
3571 return NULL;
3572 }
3573
3574 skb_reserve(skb, ieee->tx_headroom);
3575
3576 disauth = (struct rtllib_disauth *) skb_put(skb,sizeof(struct rtllib_disauth));
3577 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3578 disauth->header.duration_id = 0;
3579
3580 memcpy(disauth->header.addr1, beacon->bssid, ETH_ALEN);
3581 memcpy(disauth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3582 memcpy(disauth->header.addr3, beacon->bssid, ETH_ALEN);
3583
3584 disauth->reason = cpu_to_le16(asRsn);
3585 return skb;
3586 }
3587
3588 inline struct sk_buff *rtllib_disassociate_skb( struct rtllib_network *beacon,
3589 struct rtllib_device *ieee, u16 asRsn)
3590 {
3591 struct sk_buff *skb;
3592 struct rtllib_disassoc *disass;
3593 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3594 skb = dev_alloc_skb(len);
3595
3596 if (!skb) {
3597 return NULL;
3598 }
3599
3600 skb_reserve(skb, ieee->tx_headroom);
3601
3602 disass = (struct rtllib_disassoc *) skb_put(skb,sizeof(struct rtllib_disassoc));
3603 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3604 disass->header.duration_id = 0;
3605
3606 memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
3607 memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3608 memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
3609
3610 disass->reason = cpu_to_le16(asRsn);
3611 return skb;
3612 }
3613
3614 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3615 {
3616 struct rtllib_network *beacon = &ieee->current_network;
3617 struct sk_buff *skb;
3618
3619 if (deauth) {
3620 skb = rtllib_disauth_skb(beacon,ieee,asRsn);
3621 } else {
3622 skb = rtllib_disassociate_skb(beacon,ieee,asRsn);
3623 }
3624
3625 if (skb){
3626 softmac_mgmt_xmit(skb, ieee);
3627 }
3628 }
3629
3630 u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3631 {
3632 static u8 ccmp_ie[4] = {0x00,0x50,0xf2,0x04};
3633 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
3634 int wpa_ie_len= ieee->wpa_ie_len;
3635 struct rtllib_crypt_data* crypt;
3636 int encrypt;
3637
3638 crypt = ieee->crypt[ieee->tx_keyidx];
3639 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY) ||\
3640 (ieee->host_encrypt && crypt && crypt->ops && \
3641 (0 == strcmp(crypt->ops->name,"WEP")));
3642
3643 /* simply judge */
3644 if (encrypt && (wpa_ie_len == 0)) {
3645 return SEC_ALG_WEP;
3646 } else if ((wpa_ie_len != 0)) {
3647 if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]),ccmp_ie,4))) ||
3648 ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10],ccmp_rsn_ie, 4))))
3649 return SEC_ALG_CCMP;
3650 else
3651 return SEC_ALG_TKIP;
3652 } else {
3653 return SEC_ALG_NONE;
3654 }
3655 }
3656
3657 int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p, u8 is_mesh)
3658 {
3659 struct ieee_param *param;
3660 int ret=0;
3661
3662 down(&ieee->wx_sem);
3663
3664 if (p->length < sizeof(struct ieee_param) || !p->pointer){
3665 ret = -EINVAL;
3666 goto out;
3667 }
3668
3669 param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
3670 if (param == NULL){
3671 ret = -ENOMEM;
3672 goto out;
3673 }
3674 if (copy_from_user(param, p->pointer, p->length)) {
3675 kfree(param);
3676 ret = -EFAULT;
3677 goto out;
3678 }
3679
3680 switch (param->cmd) {
3681
3682 case IEEE_CMD_SET_WPA_PARAM:
3683 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3684 param->u.wpa_param.value);
3685 break;
3686
3687 case IEEE_CMD_SET_WPA_IE:
3688 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3689 break;
3690
3691 case IEEE_CMD_SET_ENCRYPTION:
3692 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3693 break;
3694
3695 case IEEE_CMD_MLME:
3696 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3697 param->u.mlme.reason_code);
3698 break;
3699
3700 default:
3701 printk("Unknown WPA supplicant request: %d\n",param->cmd);
3702 ret = -EOPNOTSUPP;
3703 break;
3704 }
3705
3706 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3707 ret = -EFAULT;
3708
3709 kfree(param);
3710 out:
3711 up(&ieee->wx_sem);
3712
3713 return ret;
3714 }
3715
3716 void
3717 rtllib_MgntDisconnectIBSS(struct rtllib_device* rtllib)
3718 {
3719 u8 OpMode;
3720 u8 i;
3721 bool bFilterOutNonAssociatedBSSID = false;
3722
3723 rtllib->state = RTLLIB_NOLINK;
3724
3725 for (i=0;i<6;i++) rtllib->current_network.bssid[i]= 0x55;
3726
3727 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3728 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID, rtllib->current_network.bssid);
3729 OpMode = RT_OP_MODE_NO_LINK;
3730 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3731 rtllib_stop_send_beacons(rtllib);
3732
3733 bFilterOutNonAssociatedBSSID = false;
3734 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID, (u8*)(&bFilterOutNonAssociatedBSSID));
3735 notify_wx_assoc_event(rtllib);
3736
3737 }
3738
3739 void
3740 rtllib_MlmeDisassociateRequest(
3741 struct rtllib_device* rtllib,
3742 u8* asSta,
3743 u8 asRsn
3744 )
3745 {
3746 u8 i;
3747 u8 OpMode;
3748
3749 RemovePeerTS(rtllib, asSta);
3750
3751
3752 if (memcpy(rtllib->current_network.bssid,asSta,6) == 0)
3753 {
3754 rtllib->state = RTLLIB_NOLINK;
3755
3756 for (i=0;i<6;i++) rtllib->current_network.bssid[i] = 0x22;
3757 OpMode = RT_OP_MODE_NO_LINK;
3758 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3759 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, (u8 *)(&OpMode) );
3760 rtllib_disassociate(rtllib);
3761
3762 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID, rtllib->current_network.bssid);
3763
3764 }
3765
3766 }
3767
3768 void
3769 rtllib_MgntDisconnectAP(
3770 struct rtllib_device* rtllib,
3771 u8 asRsn
3772 )
3773 {
3774 bool bFilterOutNonAssociatedBSSID = false;
3775
3776 bFilterOutNonAssociatedBSSID = false;
3777 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID, (u8*)(&bFilterOutNonAssociatedBSSID));
3778 rtllib_MlmeDisassociateRequest( rtllib, rtllib->current_network.bssid, asRsn );
3779
3780 rtllib->state = RTLLIB_NOLINK;
3781 }
3782
3783 bool
3784 rtllib_MgntDisconnect(
3785 struct rtllib_device* rtllib,
3786 u8 asRsn
3787 )
3788 {
3789 if (rtllib->ps != RTLLIB_PS_DISABLED)
3790 {
3791 rtllib->sta_wake_up(rtllib->dev);
3792 }
3793
3794 if ( rtllib->state == RTLLIB_LINKED )
3795 {
3796 if ( rtllib->iw_mode == IW_MODE_ADHOC )
3797 {
3798 rtllib_MgntDisconnectIBSS(rtllib);
3799 }
3800 if ( rtllib->iw_mode == IW_MODE_INFRA )
3801 {
3802 rtllib_MgntDisconnectAP(rtllib, asRsn);
3803 }
3804
3805 }
3806
3807 return true;
3808 }
3809
3810 void notify_wx_assoc_event(struct rtllib_device *ieee)
3811 {
3812 union iwreq_data wrqu;
3813
3814 if (ieee->cannot_notify)
3815 return;
3816
3817 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3818 if (ieee->state == RTLLIB_LINKED)
3819 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
3820 else{
3821
3822 printk("%s(): Tell user space disconnected\n",__func__);
3823 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
3824 }
3825 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3826 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree