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Merge branch 'next/drivers' into HEAD
[deliverable/linux.git] / drivers / staging / rtl8187se / ieee80211 / ieee80211_softmac.c
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 ieee80211
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 "ieee80211.h"
18
19 #include <linux/random.h>
20 #include <linux/delay.h>
21 #include <linux/slab.h>
22 #include <linux/interrupt.h>
23 #include <asm/uaccess.h>
24 #include <linux/etherdevice.h>
25
26 #include "dot11d.h"
27 u8 rsn_authen_cipher_suite[16][4] = {
28 {0x00,0x0F,0xAC,0x00}, //Use group key, //Reserved
29 {0x00,0x0F,0xAC,0x01}, //WEP-40 //RSNA default
30 {0x00,0x0F,0xAC,0x02}, //TKIP //NONE //{used just as default}
31 {0x00,0x0F,0xAC,0x03}, //WRAP-historical
32 {0x00,0x0F,0xAC,0x04}, //CCMP
33 {0x00,0x0F,0xAC,0x05}, //WEP-104
34 };
35
36 short ieee80211_is_54g(const struct ieee80211_network *net)
37 {
38 return (net->rates_ex_len > 0) || (net->rates_len > 4);
39 }
40
41 short ieee80211_is_shortslot(const struct ieee80211_network *net)
42 {
43 return net->capability & WLAN_CAPABILITY_SHORT_SLOT;
44 }
45
46 /* returns the total length needed for placing 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 ieee80211_MFIE_rate_len(struct ieee80211_device *ieee)
51 {
52 unsigned int rate_len = 0;
53
54 if (ieee->modulation & IEEE80211_CCK_MODULATION)
55 rate_len = IEEE80211_CCK_RATE_LEN + 2;
56
57 if (ieee->modulation & IEEE80211_OFDM_MODULATION)
58
59 rate_len += IEEE80211_OFDM_RATE_LEN + 2;
60
61 return rate_len;
62 }
63
64 /* place the MFIE rate, tag to the memory (double) poised.
65 * Then it updates the pointer so that
66 * it points after the new MFIE tag added.
67 */
68 void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p)
69 {
70 u8 *tag = *tag_p;
71
72 if (ieee->modulation & IEEE80211_CCK_MODULATION){
73 *tag++ = MFIE_TYPE_RATES;
74 *tag++ = 4;
75 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
76 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
77 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
78 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_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 ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p)
86 {
87 u8 *tag = *tag_p;
88
89 if (ieee->modulation & IEEE80211_OFDM_MODULATION){
90
91 *tag++ = MFIE_TYPE_RATES_EX;
92 *tag++ = 8;
93 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
94 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
95 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
96 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
97 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
98 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
99 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
100 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_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
109 void ieee80211_WMM_Info(struct ieee80211_device *ieee, u8 **tag_p) {
110 u8 *tag = *tag_p;
111
112 *tag++ = MFIE_TYPE_GENERIC; //0
113 *tag++ = 7;
114 *tag++ = 0x00;
115 *tag++ = 0x50;
116 *tag++ = 0xf2;
117 *tag++ = 0x02;//5
118 *tag++ = 0x00;
119 *tag++ = 0x01;
120 #ifdef SUPPORT_USPD
121 if(ieee->current_network.wmm_info & 0x80) {
122 *tag++ = 0x0f|MAX_SP_Len;
123 } else {
124 *tag++ = MAX_SP_Len;
125 }
126 #else
127 *tag++ = MAX_SP_Len;
128 #endif
129 *tag_p = tag;
130 }
131
132 void ieee80211_TURBO_Info(struct ieee80211_device *ieee, u8 **tag_p) {
133 u8 *tag = *tag_p;
134
135 *tag++ = MFIE_TYPE_GENERIC; //0
136 *tag++ = 7;
137 *tag++ = 0x00;
138 *tag++ = 0xe0;
139 *tag++ = 0x4c;
140 *tag++ = 0x01;//5
141 *tag++ = 0x02;
142 *tag++ = 0x11;
143 *tag++ = 0x00;
144
145 *tag_p = tag;
146 printk(KERN_ALERT "This is enable turbo mode IE process\n");
147 }
148
149 void enqueue_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb)
150 {
151 int nh;
152 nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM;
153
154 /*
155 * if the queue is full but we have newer frames then
156 * just overwrites the oldest.
157 *
158 * if (nh == ieee->mgmt_queue_tail)
159 * return -1;
160 */
161 ieee->mgmt_queue_head = nh;
162 ieee->mgmt_queue_ring[nh] = skb;
163
164 //return 0;
165 }
166
167 struct sk_buff *dequeue_mgmt(struct ieee80211_device *ieee)
168 {
169 struct sk_buff *ret;
170
171 if(ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
172 return NULL;
173
174 ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
175
176 ieee->mgmt_queue_tail =
177 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
178
179 return ret;
180 }
181
182 void init_mgmt_queue(struct ieee80211_device *ieee)
183 {
184 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
185 }
186
187
188 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl);
189
190 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
191 {
192 unsigned long flags;
193 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
194 struct ieee80211_hdr_3addr *header=
195 (struct ieee80211_hdr_3addr *) skb->data;
196
197
198 spin_lock_irqsave(&ieee->lock, flags);
199
200 /* called with 2nd param 0, no mgmt lock required */
201 ieee80211_sta_wakeup(ieee,0);
202
203 if(single){
204 if(ieee->queue_stop){
205
206 enqueue_mgmt(ieee,skb);
207 }else{
208 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
209
210 if (ieee->seq_ctrl[0] == 0xFFF)
211 ieee->seq_ctrl[0] = 0;
212 else
213 ieee->seq_ctrl[0]++;
214
215 /* avoid watchdog triggers */
216 ieee->dev->trans_start = jiffies;
217 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
218 }
219
220 spin_unlock_irqrestore(&ieee->lock, flags);
221 }else{
222 spin_unlock_irqrestore(&ieee->lock, flags);
223 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
224
225 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
226
227 if (ieee->seq_ctrl[0] == 0xFFF)
228 ieee->seq_ctrl[0] = 0;
229 else
230 ieee->seq_ctrl[0]++;
231
232 /* avoid watchdog triggers */
233 ieee->dev->trans_start = jiffies;
234 ieee->softmac_hard_start_xmit(skb,ieee->dev);
235
236 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
237 }
238 }
239
240
241 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
242 {
243
244 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
245 struct ieee80211_hdr_3addr *header =
246 (struct ieee80211_hdr_3addr *) skb->data;
247
248
249 if(single){
250
251 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
252
253 if (ieee->seq_ctrl[0] == 0xFFF)
254 ieee->seq_ctrl[0] = 0;
255 else
256 ieee->seq_ctrl[0]++;
257
258 /* avoid watchdog triggers */
259 ieee->dev->trans_start = jiffies;
260 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
261
262 }else{
263
264 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
265
266 if (ieee->seq_ctrl[0] == 0xFFF)
267 ieee->seq_ctrl[0] = 0;
268 else
269 ieee->seq_ctrl[0]++;
270
271 /* avoid watchdog triggers */
272 ieee->dev->trans_start = jiffies;
273 ieee->softmac_hard_start_xmit(skb,ieee->dev);
274
275 }
276 // dev_kfree_skb_any(skb);//edit by thomas
277 }
278 //by amy for power save
279 inline struct sk_buff *ieee80211_disassociate_skb(
280 struct ieee80211_network *beacon,
281 struct ieee80211_device *ieee,
282 u8 asRsn)
283 {
284 struct sk_buff *skb;
285 struct ieee80211_disassoc_frame *disass;
286
287 skb = dev_alloc_skb(sizeof(struct ieee80211_disassoc_frame));
288 if (!skb)
289 return NULL;
290
291 disass = (struct ieee80211_disassoc_frame *) skb_put(skb,sizeof(struct ieee80211_disassoc_frame));
292 disass->header.frame_control = cpu_to_le16(IEEE80211_STYPE_DISASSOC);
293 disass->header.duration_id = 0;
294
295 memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
296 memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
297 memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
298
299 disass->reasoncode = asRsn;
300 return skb;
301 }
302 void
303 SendDisassociation(
304 struct ieee80211_device *ieee,
305 u8* asSta,
306 u8 asRsn
307 )
308 {
309 struct ieee80211_network *beacon = &ieee->current_network;
310 struct sk_buff *skb;
311 skb = ieee80211_disassociate_skb(beacon,ieee,asRsn);
312 if (skb){
313 softmac_mgmt_xmit(skb, ieee);
314 //dev_kfree_skb_any(skb);//edit by thomas
315 }
316 }
317
318 //by amy for power save
319 inline struct sk_buff *ieee80211_probe_req(struct ieee80211_device *ieee)
320 {
321 unsigned int len,rate_len;
322 u8 *tag;
323 struct sk_buff *skb;
324 struct ieee80211_probe_request *req;
325
326 len = ieee->current_network.ssid_len;
327
328 rate_len = ieee80211_MFIE_rate_len(ieee);
329
330 skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) +
331 2 + len + rate_len);
332 if (!skb)
333 return NULL;
334
335 req = (struct ieee80211_probe_request *) skb_put(skb,sizeof(struct ieee80211_probe_request));
336 req->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
337 req->header.duration_id = 0; //FIXME: is this OK ?
338
339 memset(req->header.addr1, 0xff, ETH_ALEN);
340 memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
341 memset(req->header.addr3, 0xff, ETH_ALEN);
342
343 tag = (u8 *) skb_put(skb,len+2+rate_len);
344
345 *tag++ = MFIE_TYPE_SSID;
346 *tag++ = len;
347 memcpy(tag, ieee->current_network.ssid, len);
348 tag += len;
349 ieee80211_MFIE_Brate(ieee,&tag);
350 ieee80211_MFIE_Grate(ieee,&tag);
351
352 return skb;
353 }
354
355 struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee);
356
357 void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee)
358 {
359 struct sk_buff *skb;
360
361 //unsigned long flags;
362
363 skb = ieee80211_get_beacon_(ieee);
364
365 if (skb){
366 softmac_mgmt_xmit(skb, ieee);
367 ieee->softmac_stats.tx_beacons++;
368 dev_kfree_skb_any(skb);//edit by thomas
369 }
370
371
372 //printk(KERN_WARNING "[1] beacon sending!\n");
373 ieee->beacon_timer.expires = jiffies +
374 (MSECS( ieee->current_network.beacon_interval -5));
375
376 //spin_lock_irqsave(&ieee->beacon_lock,flags);
377 if(ieee->beacon_txing)
378 add_timer(&ieee->beacon_timer);
379 //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
380 }
381
382 void ieee80211_send_beacon(struct ieee80211_device *ieee)
383 {
384 struct sk_buff *skb;
385
386 //unsigned long flags;
387
388 skb = ieee80211_get_beacon_(ieee);
389
390 if (skb){
391 softmac_mgmt_xmit(skb, ieee);
392 ieee->softmac_stats.tx_beacons++;
393 dev_kfree_skb_any(skb);//edit by thomas
394 }
395
396 //printk(KERN_WARNING "[1] beacon sending!\n");
397 ieee->beacon_timer.expires = jiffies +
398 (MSECS( ieee->current_network.beacon_interval -5));
399
400 //spin_lock_irqsave(&ieee->beacon_lock,flags);
401 if(ieee->beacon_txing)
402 add_timer(&ieee->beacon_timer);
403 //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
404 }
405
406
407 void ieee80211_send_beacon_cb(unsigned long _ieee)
408 {
409 struct ieee80211_device *ieee =
410 (struct ieee80211_device *) _ieee;
411 unsigned long flags;
412
413 spin_lock_irqsave(&ieee->beacon_lock, flags);
414 ieee80211_send_beacon(ieee);
415 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
416 }
417
418 void ieee80211_send_probe(struct ieee80211_device *ieee)
419 {
420 struct sk_buff *skb;
421
422 skb = ieee80211_probe_req(ieee);
423 if (skb){
424 softmac_mgmt_xmit(skb, ieee);
425 ieee->softmac_stats.tx_probe_rq++;
426 //dev_kfree_skb_any(skb);//edit by thomas
427 }
428 }
429
430 void ieee80211_send_probe_requests(struct ieee80211_device *ieee)
431 {
432 if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){
433 ieee80211_send_probe(ieee);
434 ieee80211_send_probe(ieee);
435 }
436 }
437
438 /* this performs syncro scan blocking the caller until all channels
439 * in the allowed channel map has been checked.
440 */
441 void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee)
442 {
443 short ch = 0;
444 u8 channel_map[MAX_CHANNEL_NUMBER+1];
445 memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
446 down(&ieee->scan_sem);
447 // printk("==================> Sync scan\n");
448
449 while(1)
450 {
451
452 do{
453 ch++;
454 if (ch > MAX_CHANNEL_NUMBER)
455 goto out; /* scan completed */
456
457 }while(!channel_map[ch]);
458 /* this function can be called in two situations
459 * 1- We have switched to ad-hoc mode and we are
460 * performing a complete syncro scan before conclude
461 * there are no interesting cell and to create a
462 * new one. In this case the link state is
463 * IEEE80211_NOLINK until we found an interesting cell.
464 * If so the ieee8021_new_net, called by the RX path
465 * will set the state to IEEE80211_LINKED, so we stop
466 * scanning
467 * 2- We are linked and the root uses run iwlist scan.
468 * So we switch to IEEE80211_LINKED_SCANNING to remember
469 * that we are still logically linked (not interested in
470 * new network events, despite for updating the net list,
471 * but we are temporarily 'unlinked' as the driver shall
472 * not filter RX frames and the channel is changing.
473 * So the only situation in witch are interested is to check
474 * if the state become LINKED because of the #1 situation
475 */
476
477 if (ieee->state == IEEE80211_LINKED)
478 goto out;
479
480 ieee->set_chan(ieee->dev, ch);
481 // printk("=====>channel=%d ",ch);
482 if(channel_map[ch] == 1)
483 {
484 // printk("====send probe request\n");
485 ieee80211_send_probe_requests(ieee);
486 }
487 /* this prevent excessive time wait when we
488 * need to wait for a syncro scan to end..
489 */
490 if (ieee->sync_scan_hurryup)
491 goto out;
492
493
494 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
495
496 }
497 out:
498 ieee->sync_scan_hurryup = 0;
499 up(&ieee->scan_sem);
500 if(IS_DOT11D_ENABLE(ieee))
501 DOT11D_ScanComplete(ieee);
502 }
503
504 void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee)
505 {
506 int ch;
507 unsigned int watch_dog = 0;
508 u8 channel_map[MAX_CHANNEL_NUMBER+1];
509 memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
510 down(&ieee->scan_sem);
511 ch = ieee->current_network.channel;
512 // if(ieee->sync_scan_hurryup)
513 // {
514
515 // printk("stop scan sync\n");
516 // goto out;
517 // }
518 // printk("=======hh===============>ips scan\n");
519 while(1)
520 {
521 /* this function can be called in two situations
522 * 1- We have switched to ad-hoc mode and we are
523 * performing a complete syncro scan before conclude
524 * there are no interesting cell and to create a
525 * new one. In this case the link state is
526 * IEEE80211_NOLINK until we found an interesting cell.
527 * If so the ieee8021_new_net, called by the RX path
528 * will set the state to IEEE80211_LINKED, so we stop
529 * scanning
530 * 2- We are linked and the root uses run iwlist scan.
531 * So we switch to IEEE80211_LINKED_SCANNING to remember
532 * that we are still logically linked (not interested in
533 * new network events, despite for updating the net list,
534 * but we are temporarily 'unlinked' as the driver shall
535 * not filter RX frames and the channel is changing.
536 * So the only situation in witch are interested is to check
537 * if the state become LINKED because of the #1 situation
538 */
539 if (ieee->state == IEEE80211_LINKED)
540 {
541 goto out;
542 }
543 if(channel_map[ieee->current_network.channel] > 0)
544 {
545 ieee->set_chan(ieee->dev, ieee->current_network.channel);
546 // printk("======>channel=%d ",ieee->current_network.channel);
547 }
548 if(channel_map[ieee->current_network.channel] == 1)
549 {
550 // printk("====send probe request\n");
551 ieee80211_send_probe_requests(ieee);
552 }
553 /* this prevent excessive time wait when we
554 * need to wait for a syncro scan to end..
555 */
556 // if (ieee->sync_scan_hurryup)
557 // goto out;
558
559 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
560
561 do{
562 if (watch_dog++ >= MAX_CHANNEL_NUMBER)
563 // if (++watch_dog >= 15);//MAX_CHANNEL_NUMBER) //YJ,modified,080630
564 goto out; /* scan completed */
565
566 ieee->current_network.channel = (ieee->current_network.channel + 1)%MAX_CHANNEL_NUMBER;
567 }while(!channel_map[ieee->current_network.channel]);
568 }
569 out:
570 //ieee->sync_scan_hurryup = 0;
571 //ieee->set_chan(ieee->dev, ch);
572 //ieee->current_network.channel = ch;
573 ieee->actscanning = false;
574 up(&ieee->scan_sem);
575 if(IS_DOT11D_ENABLE(ieee))
576 DOT11D_ScanComplete(ieee);
577 }
578
579 void ieee80211_softmac_scan_wq(struct work_struct *work)
580 {
581 struct delayed_work *dwork = to_delayed_work(work);
582 struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq);
583 static short watchdog = 0;
584 u8 channel_map[MAX_CHANNEL_NUMBER+1];
585 memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
586 // printk("ieee80211_softmac_scan_wq ENABLE_IPS\n");
587 // printk("in %s\n",__func__);
588 down(&ieee->scan_sem);
589
590 do{
591 ieee->current_network.channel =
592 (ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
593 if (watchdog++ > MAX_CHANNEL_NUMBER)
594 goto out; /* no good chans */
595
596 }while(!channel_map[ieee->current_network.channel]);
597
598 //printk("current_network.channel:%d\n", ieee->current_network.channel);
599 if (ieee->scanning == 0 )
600 {
601 printk("error out, scanning = 0\n");
602 goto out;
603 }
604 ieee->set_chan(ieee->dev, ieee->current_network.channel);
605 if(channel_map[ieee->current_network.channel] == 1)
606 ieee80211_send_probe_requests(ieee);
607
608 queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
609 up(&ieee->scan_sem);
610 return;
611 out:
612 ieee->actscanning = false;
613 watchdog = 0;
614 ieee->scanning = 0;
615 up(&ieee->scan_sem);
616
617 if(IS_DOT11D_ENABLE(ieee))
618 DOT11D_ScanComplete(ieee);
619 return;
620 }
621
622 void ieee80211_beacons_start(struct ieee80211_device *ieee)
623 {
624 unsigned long flags;
625
626 spin_lock_irqsave(&ieee->beacon_lock,flags);
627
628 ieee->beacon_txing = 1;
629 ieee80211_send_beacon(ieee);
630
631 spin_unlock_irqrestore(&ieee->beacon_lock,flags);
632 }
633
634 void ieee80211_beacons_stop(struct ieee80211_device *ieee)
635 {
636 unsigned long flags;
637
638 spin_lock_irqsave(&ieee->beacon_lock,flags);
639
640 ieee->beacon_txing = 0;
641 del_timer_sync(&ieee->beacon_timer);
642
643 spin_unlock_irqrestore(&ieee->beacon_lock,flags);
644
645 }
646
647
648 void ieee80211_stop_send_beacons(struct ieee80211_device *ieee)
649 {
650 if(ieee->stop_send_beacons)
651 ieee->stop_send_beacons(ieee->dev);
652 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
653 ieee80211_beacons_stop(ieee);
654 }
655
656
657 void ieee80211_start_send_beacons(struct ieee80211_device *ieee)
658 {
659 if(ieee->start_send_beacons)
660 ieee->start_send_beacons(ieee->dev);
661 if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
662 ieee80211_beacons_start(ieee);
663 }
664
665
666 void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
667 {
668 // unsigned long flags;
669
670 //ieee->sync_scan_hurryup = 1;
671
672 down(&ieee->scan_sem);
673 // spin_lock_irqsave(&ieee->lock, flags);
674
675 if (ieee->scanning == 1){
676 ieee->scanning = 0;
677 //del_timer_sync(&ieee->scan_timer);
678 cancel_delayed_work(&ieee->softmac_scan_wq);
679 }
680
681 // spin_unlock_irqrestore(&ieee->lock, flags);
682 up(&ieee->scan_sem);
683 }
684
685 void ieee80211_stop_scan(struct ieee80211_device *ieee)
686 {
687 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
688 ieee80211_softmac_stop_scan(ieee);
689 else
690 ieee->stop_scan(ieee->dev);
691 }
692
693 /* called with ieee->lock held */
694 void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
695 {
696 if(IS_DOT11D_ENABLE(ieee) )
697 {
698 if(IS_COUNTRY_IE_VALID(ieee))
699 {
700 RESET_CIE_WATCHDOG(ieee);
701 }
702 }
703 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
704 if (ieee->scanning == 0)
705 {
706 ieee->scanning = 1;
707 //ieee80211_softmac_scan(ieee);
708 // queue_work(ieee->wq, &ieee->softmac_scan_wq);
709 //care this,1203,2007,by lawrence
710 #if 1
711 queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq,0);
712 #endif
713 }
714 }else
715 ieee->start_scan(ieee->dev);
716
717 }
718
719 /* called with wx_sem held */
720 void ieee80211_start_scan_syncro(struct ieee80211_device *ieee)
721 {
722 if(IS_DOT11D_ENABLE(ieee) )
723 {
724 if(IS_COUNTRY_IE_VALID(ieee))
725 {
726 RESET_CIE_WATCHDOG(ieee);
727 }
728 }
729 ieee->sync_scan_hurryup = 0;
730
731 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
732 ieee80211_softmac_scan_syncro(ieee);
733 else
734 ieee->scan_syncro(ieee->dev);
735
736 }
737
738 inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *beacon,
739 struct ieee80211_device *ieee, int challengelen)
740 {
741 struct sk_buff *skb;
742 struct ieee80211_authentication *auth;
743
744 skb = dev_alloc_skb(sizeof(struct ieee80211_authentication) + challengelen);
745
746 if (!skb) return NULL;
747
748 auth = (struct ieee80211_authentication *)
749 skb_put(skb, sizeof(struct ieee80211_authentication));
750
751 auth->header.frame_ctl = IEEE80211_STYPE_AUTH;
752 if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP;
753
754 auth->header.duration_id = 0x013a; //FIXME
755
756 memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
757 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
758 memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
759
760 auth->algorithm = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
761
762 auth->transaction = cpu_to_le16(ieee->associate_seq);
763 ieee->associate_seq++;
764
765 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
766
767 return skb;
768
769 }
770
771 static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *dest)
772 {
773 u8 *tag;
774 int beacon_size;
775 struct ieee80211_probe_response *beacon_buf;
776 struct sk_buff *skb;
777 int encrypt;
778 int atim_len,erp_len;
779 struct ieee80211_crypt_data* crypt;
780
781 char *ssid = ieee->current_network.ssid;
782 int ssid_len = ieee->current_network.ssid_len;
783 int rate_len = ieee->current_network.rates_len+2;
784 int rate_ex_len = ieee->current_network.rates_ex_len;
785 int wpa_ie_len = ieee->wpa_ie_len;
786 if(rate_ex_len > 0) rate_ex_len+=2;
787
788 if(ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
789 atim_len = 4;
790 else
791 atim_len = 0;
792
793 if(ieee80211_is_54g(&ieee->current_network))
794 erp_len = 3;
795 else
796 erp_len = 0;
797
798 beacon_size = sizeof(struct ieee80211_probe_response)+
799 ssid_len
800 +3 //channel
801 +rate_len
802 +rate_ex_len
803 +atim_len
804 +wpa_ie_len
805 +erp_len;
806
807 skb = dev_alloc_skb(beacon_size);
808
809 if (!skb)
810 return NULL;
811
812 beacon_buf = (struct ieee80211_probe_response*) skb_put(skb, beacon_size);
813
814 memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
815 memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
816 memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
817
818 beacon_buf->header.duration_id = 0; //FIXME
819 beacon_buf->beacon_interval =
820 cpu_to_le16(ieee->current_network.beacon_interval);
821 beacon_buf->capability =
822 cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS);
823
824 if(ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT))
825 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
826
827 crypt = ieee->crypt[ieee->tx_keyidx];
828
829 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
830 ((0 == strcmp(crypt->ops->name, "WEP")) || wpa_ie_len);
831
832 if (encrypt)
833 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
834
835
836 beacon_buf->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_RESP);
837
838 beacon_buf->info_element.id = MFIE_TYPE_SSID;
839 beacon_buf->info_element.len = ssid_len;
840
841 tag = (u8*) beacon_buf->info_element.data;
842
843 memcpy(tag, ssid, ssid_len);
844
845 tag += ssid_len;
846
847 *(tag++) = MFIE_TYPE_RATES;
848 *(tag++) = rate_len-2;
849 memcpy(tag,ieee->current_network.rates,rate_len-2);
850 tag+=rate_len-2;
851
852 *(tag++) = MFIE_TYPE_DS_SET;
853 *(tag++) = 1;
854 *(tag++) = ieee->current_network.channel;
855
856 if(atim_len){
857 *(tag++) = MFIE_TYPE_IBSS_SET;
858 *(tag++) = 2;
859 *((u16*)(tag)) = cpu_to_le16(ieee->current_network.atim_window);
860 tag+=2;
861 }
862
863 if(erp_len){
864 *(tag++) = MFIE_TYPE_ERP;
865 *(tag++) = 1;
866 *(tag++) = 0;
867 }
868
869 if(rate_ex_len){
870 *(tag++) = MFIE_TYPE_RATES_EX;
871 *(tag++) = rate_ex_len-2;
872 memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2);
873 tag+=rate_ex_len-2;
874 }
875
876 if (wpa_ie_len)
877 {
878 if (ieee->iw_mode == IW_MODE_ADHOC)
879 {//as Windows will set pairwise key same as the group key which is not allowed in Linux, so set this for IOT issue. WB 2008.07.07
880 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
881 }
882
883 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
884 }
885
886 skb->dev = ieee->dev;
887 return skb;
888 }
889
890 struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
891 {
892 struct sk_buff *skb;
893 u8* tag;
894
895 struct ieee80211_crypt_data* crypt;
896 struct ieee80211_assoc_response_frame *assoc;
897 short encrypt;
898
899 unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
900 int len = sizeof(struct ieee80211_assoc_response_frame) + rate_len;
901
902 skb = dev_alloc_skb(len);
903
904 if (!skb)
905 return NULL;
906
907 assoc = (struct ieee80211_assoc_response_frame *)
908 skb_put(skb,sizeof(struct ieee80211_assoc_response_frame));
909
910 assoc->header.frame_control = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP);
911 memcpy(assoc->header.addr1, dest,ETH_ALEN);
912 memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
913 memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
914 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
915 WLAN_CAPABILITY_BSS : WLAN_CAPABILITY_IBSS);
916
917
918 if(ieee->short_slot)
919 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
920
921 if (ieee->host_encrypt)
922 crypt = ieee->crypt[ieee->tx_keyidx];
923 else crypt = NULL;
924
925 encrypt = ( crypt && crypt->ops);
926
927 if (encrypt)
928 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
929
930 assoc->status = 0;
931 assoc->aid = cpu_to_le16(ieee->assoc_id);
932 if (ieee->assoc_id == 0x2007) ieee->assoc_id=0;
933 else ieee->assoc_id++;
934
935 tag = (u8*) skb_put(skb, rate_len);
936
937 ieee80211_MFIE_Brate(ieee, &tag);
938 ieee80211_MFIE_Grate(ieee, &tag);
939
940 return skb;
941 }
942
943 struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest)
944 {
945 struct sk_buff *skb;
946 struct ieee80211_authentication *auth;
947
948 skb = dev_alloc_skb(sizeof(struct ieee80211_authentication)+1);
949
950 if (!skb)
951 return NULL;
952
953 skb->len = sizeof(struct ieee80211_authentication);
954
955 auth = (struct ieee80211_authentication *)skb->data;
956
957 auth->status = cpu_to_le16(status);
958 auth->transaction = cpu_to_le16(2);
959 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
960
961 memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
962 memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
963 memcpy(auth->header.addr1, dest, ETH_ALEN);
964 auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH);
965 return skb;
966
967
968 }
969
970 struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr)
971 {
972 struct sk_buff *skb;
973 struct ieee80211_hdr_3addr* hdr;
974
975 skb = dev_alloc_skb(sizeof(struct ieee80211_hdr_3addr));
976
977 if (!skb)
978 return NULL;
979
980 hdr = (struct ieee80211_hdr_3addr*)skb_put(skb,sizeof(struct ieee80211_hdr_3addr));
981
982 memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
983 memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
984 memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
985
986 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
987 IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS |
988 (pwr ? IEEE80211_FCTL_PM:0));
989
990 return skb;
991
992
993 }
994
995
996 void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest)
997 {
998 struct sk_buff *buf = ieee80211_assoc_resp(ieee, dest);
999
1000 if (buf){
1001 softmac_mgmt_xmit(buf, ieee);
1002 dev_kfree_skb_any(buf);//edit by thomas
1003 }
1004 }
1005
1006
1007 void ieee80211_resp_to_auth(struct ieee80211_device *ieee, int s, u8* dest)
1008 {
1009 struct sk_buff *buf = ieee80211_auth_resp(ieee, s, dest);
1010
1011 if (buf){
1012 softmac_mgmt_xmit(buf, ieee);
1013 dev_kfree_skb_any(buf);//edit by thomas
1014 }
1015 }
1016
1017
1018 void ieee80211_resp_to_probe(struct ieee80211_device *ieee, u8 *dest)
1019 {
1020
1021 struct sk_buff *buf = ieee80211_probe_resp(ieee, dest);
1022
1023 if (buf) {
1024 softmac_mgmt_xmit(buf, ieee);
1025 dev_kfree_skb_any(buf);//edit by thomas
1026 }
1027 }
1028
1029
1030 inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beacon,struct ieee80211_device *ieee)
1031 {
1032 struct sk_buff *skb;
1033 //unsigned long flags;
1034
1035 struct ieee80211_assoc_request_frame *hdr;
1036 u8 *tag;
1037 //short info_addr = 0;
1038 //int i;
1039 //u16 suite_count = 0;
1040 //u8 suit_select = 0;
1041 unsigned int wpa_len = beacon->wpa_ie_len;
1042 //struct net_device *dev = ieee->dev;
1043 //union iwreq_data wrqu;
1044 //u8 *buff;
1045 //u8 *p;
1046 #if 1
1047 // for testing purpose
1048 unsigned int rsn_len = beacon->rsn_ie_len;
1049 #else
1050 unsigned int rsn_len = beacon->rsn_ie_len - 4;
1051 #endif
1052 unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
1053 unsigned int wmm_info_len = beacon->QoS_Enable?9:0;
1054 unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;
1055
1056 u8 encry_proto = ieee->wpax_type_notify & 0xff;
1057 //u8 pairwise_type = (ieee->wpax_type_notify >> 8) & 0xff;
1058 //u8 authen_type = (ieee->wpax_type_notify >> 16) & 0xff;
1059
1060 int len = 0;
1061
1062 //[0] Notify type of encryption: WPA/WPA2
1063 //[1] pair wise type
1064 //[2] authen type
1065 if(ieee->wpax_type_set) {
1066 if (IEEE_PROTO_WPA == encry_proto) {
1067 rsn_len = 0;
1068 } else if (IEEE_PROTO_RSN == encry_proto) {
1069 wpa_len = 0;
1070 }
1071 }
1072 len = sizeof(struct ieee80211_assoc_request_frame)+
1073 + beacon->ssid_len//essid tagged val
1074 + rate_len//rates tagged val
1075 + wpa_len
1076 + rsn_len
1077 + wmm_info_len
1078 + turbo_info_len;
1079
1080 skb = dev_alloc_skb(len);
1081
1082 if (!skb)
1083 return NULL;
1084
1085 hdr = (struct ieee80211_assoc_request_frame *)
1086 skb_put(skb, sizeof(struct ieee80211_assoc_request_frame));
1087
1088
1089 hdr->header.frame_control = IEEE80211_STYPE_ASSOC_REQ;
1090 hdr->header.duration_id= 37; //FIXME
1091 memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1092 memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1093 memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1094 memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);//for HW security, John
1095
1096 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_BSS);
1097 if (beacon->capability & WLAN_CAPABILITY_PRIVACY )
1098 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1099 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1100 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1101
1102 if(ieee->short_slot)
1103 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
1104
1105 hdr->listen_interval = 0xa; //FIXME
1106
1107 hdr->info_element.id = MFIE_TYPE_SSID;
1108
1109 hdr->info_element.len = beacon->ssid_len;
1110 tag = skb_put(skb, beacon->ssid_len);
1111 memcpy(tag, beacon->ssid, beacon->ssid_len);
1112
1113 tag = skb_put(skb, rate_len);
1114
1115 ieee80211_MFIE_Brate(ieee, &tag);
1116 ieee80211_MFIE_Grate(ieee, &tag);
1117
1118 //add rsn==0 condition for ap's mix security mode(wpa+wpa2), john2007.8.9
1119 //choose AES encryption as default algorithm while using mixed mode
1120
1121 tag = skb_put(skb,ieee->wpa_ie_len);
1122 memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len);
1123
1124 tag = skb_put(skb,wmm_info_len);
1125 if(wmm_info_len) {
1126 ieee80211_WMM_Info(ieee, &tag);
1127 }
1128 tag = skb_put(skb,turbo_info_len);
1129 if(turbo_info_len) {
1130 ieee80211_TURBO_Info(ieee, &tag);
1131 }
1132
1133 return skb;
1134 }
1135
1136 void ieee80211_associate_abort(struct ieee80211_device *ieee)
1137 {
1138
1139 unsigned long flags;
1140 spin_lock_irqsave(&ieee->lock, flags);
1141
1142 ieee->associate_seq++;
1143
1144 /* don't scan, and avoid to have the RX path possibly
1145 * try again to associate. Even do not react to AUTH or
1146 * ASSOC response. Just wait for the retry wq to be scheduled.
1147 * Here we will check if there are good nets to associate
1148 * with, so we retry or just get back to NO_LINK and scanning
1149 */
1150 if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING){
1151 IEEE80211_DEBUG_MGMT("Authentication failed\n");
1152 ieee->softmac_stats.no_auth_rs++;
1153 }else{
1154 IEEE80211_DEBUG_MGMT("Association failed\n");
1155 ieee->softmac_stats.no_ass_rs++;
1156 }
1157
1158 ieee->state = IEEE80211_ASSOCIATING_RETRY;
1159
1160 queue_delayed_work(ieee->wq, &ieee->associate_retry_wq,IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
1161
1162 spin_unlock_irqrestore(&ieee->lock, flags);
1163 }
1164
1165 void ieee80211_associate_abort_cb(unsigned long dev)
1166 {
1167 ieee80211_associate_abort((struct ieee80211_device *) dev);
1168 }
1169
1170
1171 void ieee80211_associate_step1(struct ieee80211_device *ieee)
1172 {
1173 struct ieee80211_network *beacon = &ieee->current_network;
1174 struct sk_buff *skb;
1175
1176 IEEE80211_DEBUG_MGMT("Stopping scan\n");
1177 ieee->softmac_stats.tx_auth_rq++;
1178 skb=ieee80211_authentication_req(beacon, ieee, 0);
1179 if (!skb){
1180
1181 ieee80211_associate_abort(ieee);
1182 }
1183 else{
1184 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATING ;
1185 IEEE80211_DEBUG_MGMT("Sending authentication request\n");
1186 //printk("---Sending authentication request\n");
1187 softmac_mgmt_xmit(skb, ieee);
1188 //BUGON when you try to add_timer twice, using mod_timer may be better, john0709
1189 if(!timer_pending(&ieee->associate_timer)){
1190 ieee->associate_timer.expires = jiffies + (HZ / 2);
1191 add_timer(&ieee->associate_timer);
1192 }
1193 //If call dev_kfree_skb_any,a warning will ocur....
1194 //KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1708)
1195 //So ... 1204 by lawrence.
1196 //printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__);
1197 //dev_kfree_skb_any(skb);//edit by thomas
1198 }
1199 }
1200
1201 void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1202 {
1203 u8 *c;
1204 struct sk_buff *skb;
1205 struct ieee80211_network *beacon = &ieee->current_network;
1206 // int hlen = sizeof(struct ieee80211_authentication);
1207 del_timer_sync(&ieee->associate_timer);
1208 ieee->associate_seq++;
1209 ieee->softmac_stats.tx_auth_rq++;
1210
1211 skb = ieee80211_authentication_req(beacon, ieee, chlen+2);
1212 if (!skb)
1213 ieee80211_associate_abort(ieee);
1214 else{
1215 c = skb_put(skb, chlen+2);
1216 *(c++) = MFIE_TYPE_CHALLENGE;
1217 *(c++) = chlen;
1218 memcpy(c, challenge, chlen);
1219
1220 IEEE80211_DEBUG_MGMT("Sending authentication challenge response\n");
1221
1222 ieee80211_encrypt_fragment(ieee, skb, sizeof(struct ieee80211_hdr_3addr ));
1223
1224 softmac_mgmt_xmit(skb, ieee);
1225 if (!timer_pending(&ieee->associate_timer)){
1226 //printk("=========>add timer again, to crash\n");
1227 ieee->associate_timer.expires = jiffies + (HZ / 2);
1228 add_timer(&ieee->associate_timer);
1229 }
1230 dev_kfree_skb_any(skb);//edit by thomas
1231 }
1232 kfree(challenge);
1233 }
1234
1235 void ieee80211_associate_step2(struct ieee80211_device *ieee)
1236 {
1237 struct sk_buff* skb;
1238 struct ieee80211_network *beacon = &ieee->current_network;
1239
1240 del_timer_sync(&ieee->associate_timer);
1241
1242 IEEE80211_DEBUG_MGMT("Sending association request\n");
1243 ieee->softmac_stats.tx_ass_rq++;
1244 skb=ieee80211_association_req(beacon, ieee);
1245 if (!skb)
1246 ieee80211_associate_abort(ieee);
1247 else{
1248 softmac_mgmt_xmit(skb, ieee);
1249 if (!timer_pending(&ieee->associate_timer)){
1250 ieee->associate_timer.expires = jiffies + (HZ / 2);
1251 add_timer(&ieee->associate_timer);
1252 }
1253 //dev_kfree_skb_any(skb);//edit by thomas
1254 }
1255 }
1256
1257 void ieee80211_associate_complete_wq(struct work_struct *work)
1258 {
1259 struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
1260
1261 printk(KERN_INFO "Associated successfully\n");
1262 if(ieee80211_is_54g(&ieee->current_network) &&
1263 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1264
1265 ieee->rate = 540;
1266 printk(KERN_INFO"Using G rates\n");
1267 }else{
1268 ieee->rate = 110;
1269 printk(KERN_INFO"Using B rates\n");
1270 }
1271 ieee->link_change(ieee->dev);
1272 notify_wx_assoc_event(ieee);
1273 if (ieee->data_hard_resume)
1274 ieee->data_hard_resume(ieee->dev);
1275 netif_carrier_on(ieee->dev);
1276 }
1277
1278 void ieee80211_associate_complete(struct ieee80211_device *ieee)
1279 {
1280 int i;
1281 del_timer_sync(&ieee->associate_timer);
1282
1283 for(i = 0; i < 6; i++) {
1284 //ieee->seq_ctrl[i] = 0;
1285 }
1286 ieee->state = IEEE80211_LINKED;
1287 IEEE80211_DEBUG_MGMT("Successfully associated\n");
1288
1289 queue_work(ieee->wq, &ieee->associate_complete_wq);
1290 }
1291
1292 void ieee80211_associate_procedure_wq(struct work_struct *work)
1293 {
1294 struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq);
1295
1296 ieee->sync_scan_hurryup = 1;
1297 down(&ieee->wx_sem);
1298
1299 if (ieee->data_hard_stop)
1300 ieee->data_hard_stop(ieee->dev);
1301
1302 ieee80211_stop_scan(ieee);
1303 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1304
1305 ieee->associate_seq = 1;
1306 ieee80211_associate_step1(ieee);
1307
1308 up(&ieee->wx_sem);
1309 }
1310
1311 inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_network *net)
1312 {
1313 u8 tmp_ssid[IW_ESSID_MAX_SIZE+1];
1314 int tmp_ssid_len = 0;
1315
1316 short apset,ssidset,ssidbroad,apmatch,ssidmatch;
1317
1318 /* we are interested in new new only if we are not associated
1319 * and we are not associating / authenticating
1320 */
1321 if (ieee->state != IEEE80211_NOLINK)
1322 return;
1323
1324 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_BSS))
1325 return;
1326
1327 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
1328 return;
1329
1330
1331 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC){
1332 /* if the user specified the AP MAC, we need also the essid
1333 * This could be obtained by beacons or, if the network does not
1334 * broadcast it, it can be put manually.
1335 */
1336 apset = ieee->wap_set;//(memcmp(ieee->current_network.bssid, zero,ETH_ALEN)!=0 );
1337 ssidset = ieee->ssid_set;//ieee->current_network.ssid[0] != '\0';
1338 ssidbroad = !(net->ssid_len == 0 || net->ssid[0]== '\0');
1339 apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
1340
1341 if(ieee->current_network.ssid_len != net->ssid_len)
1342 ssidmatch = 0;
1343 else
1344 ssidmatch = (0==strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));
1345
1346 //printk("cur: %s, %d, net:%s, %d\n", ieee->current_network.ssid, ieee->current_network.ssid_len, net->ssid, net->ssid_len);
1347 //printk("apset=%d apmatch=%d ssidset=%d ssidbroad=%d ssidmatch=%d\n",apset,apmatch,ssidset,ssidbroad,ssidmatch);
1348
1349 if ( /* if the user set the AP check if match.
1350 * if the network does not broadcast essid we check the user supplied ANY essid
1351 * if the network does broadcast and the user does not set essid it is OK
1352 * if the network does broadcast and the user did set essid chech if essid match
1353 */
1354 ( apset && apmatch &&
1355 ((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) ||
1356 /* if the ap is not set, check that the user set the bssid
1357 * and the network does broadcast and that those two bssid matches
1358 */
1359 (!apset && ssidset && ssidbroad && ssidmatch)
1360 ){
1361
1362
1363 /* if the essid is hidden replace it with the
1364 * essid provided by the user.
1365 */
1366 if (!ssidbroad){
1367 strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
1368 tmp_ssid_len = ieee->current_network.ssid_len;
1369 }
1370 memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network));
1371
1372 if (!ssidbroad){
1373 strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
1374 ieee->current_network.ssid_len = tmp_ssid_len;
1375 }
1376 printk(KERN_INFO"Linking with %s: channel is %d\n",ieee->current_network.ssid,ieee->current_network.channel);
1377
1378 if (ieee->iw_mode == IW_MODE_INFRA){
1379 ieee->state = IEEE80211_ASSOCIATING;
1380 ieee->beinretry = false;
1381 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1382 }else{
1383 if(ieee80211_is_54g(&ieee->current_network) &&
1384 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1385 ieee->rate = 540;
1386 printk(KERN_INFO"Using G rates\n");
1387 }else{
1388 ieee->rate = 110;
1389 printk(KERN_INFO"Using B rates\n");
1390 }
1391 ieee->state = IEEE80211_LINKED;
1392 ieee->beinretry = false;
1393 }
1394
1395 }
1396 }
1397
1398 }
1399
1400 void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee)
1401 {
1402 unsigned long flags;
1403 struct ieee80211_network *target;
1404
1405 spin_lock_irqsave(&ieee->lock, flags);
1406 list_for_each_entry(target, &ieee->network_list, list) {
1407
1408 /* if the state become different that NOLINK means
1409 * we had found what we are searching for
1410 */
1411
1412 if (ieee->state != IEEE80211_NOLINK)
1413 break;
1414
1415 if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
1416 ieee80211_softmac_new_net(ieee, target);
1417 }
1418
1419 spin_unlock_irqrestore(&ieee->lock, flags);
1420
1421 }
1422
1423
1424 static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
1425 {
1426 struct ieee80211_authentication *a;
1427 u8 *t;
1428 if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1429 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
1430 return 0xcafe;
1431 }
1432 *challenge = NULL;
1433 a = (struct ieee80211_authentication*) skb->data;
1434 if(skb->len > (sizeof(struct ieee80211_authentication) +3)){
1435 t = skb->data + sizeof(struct ieee80211_authentication);
1436
1437 if(*(t++) == MFIE_TYPE_CHALLENGE){
1438 *chlen = *(t++);
1439 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1440 if (!*challenge)
1441 return -ENOMEM;
1442 }
1443 }
1444
1445 return cpu_to_le16(a->status);
1446
1447 }
1448
1449
1450 int auth_rq_parse(struct sk_buff *skb,u8* dest)
1451 {
1452 struct ieee80211_authentication *a;
1453
1454 if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1455 IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
1456 return -1;
1457 }
1458 a = (struct ieee80211_authentication*) skb->data;
1459
1460 memcpy(dest,a->header.addr2, ETH_ALEN);
1461
1462 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1463 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1464
1465 return WLAN_STATUS_SUCCESS;
1466 }
1467
1468 static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *src)
1469 {
1470 u8 *tag;
1471 u8 *skbend;
1472 u8 *ssid=NULL;
1473 u8 ssidlen = 0;
1474
1475 struct ieee80211_hdr_3addr *header =
1476 (struct ieee80211_hdr_3addr *) skb->data;
1477
1478 if (skb->len < sizeof (struct ieee80211_hdr_3addr ))
1479 return -1; /* corrupted */
1480
1481 memcpy(src,header->addr2, ETH_ALEN);
1482
1483 skbend = (u8*)skb->data + skb->len;
1484
1485 tag = skb->data + sizeof (struct ieee80211_hdr_3addr );
1486
1487 while (tag+1 < skbend){
1488 if (*tag == 0){
1489 ssid = tag+2;
1490 ssidlen = *(tag+1);
1491 break;
1492 }
1493 tag++; /* point to the len field */
1494 tag = tag + *(tag); /* point to the last data byte of the tag */
1495 tag++; /* point to the next tag */
1496 }
1497
1498 //IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src));
1499 if (ssidlen == 0) return 1;
1500
1501 if (!ssid) return 1; /* ssid not found in tagged param */
1502 return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));
1503
1504 }
1505
1506 int assoc_rq_parse(struct sk_buff *skb,u8* dest)
1507 {
1508 struct ieee80211_assoc_request_frame *a;
1509
1510 if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) -
1511 sizeof(struct ieee80211_info_element))) {
1512
1513 IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
1514 return -1;
1515 }
1516
1517 a = (struct ieee80211_assoc_request_frame*) skb->data;
1518
1519 memcpy(dest,a->header.addr2,ETH_ALEN);
1520
1521 return 0;
1522 }
1523
1524 static inline u16 assoc_parse(struct sk_buff *skb, int *aid)
1525 {
1526 struct ieee80211_assoc_response_frame *a;
1527 if (skb->len < sizeof(struct ieee80211_assoc_response_frame)){
1528 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1529 return 0xcafe;
1530 }
1531
1532 a = (struct ieee80211_assoc_response_frame*) skb->data;
1533 *aid = le16_to_cpu(a->aid) & 0x3fff;
1534 return le16_to_cpu(a->status);
1535 }
1536
1537 static inline void
1538 ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1539 {
1540 u8 dest[ETH_ALEN];
1541
1542 //IEEE80211DMESG("Rx probe");
1543 ieee->softmac_stats.rx_probe_rq++;
1544 //DMESG("Dest is "MACSTR, MAC2STR(dest));
1545 if (probe_rq_parse(ieee, skb, dest)){
1546 //IEEE80211DMESG("Was for me!");
1547 ieee->softmac_stats.tx_probe_rs++;
1548 ieee80211_resp_to_probe(ieee, dest);
1549 }
1550 }
1551
1552 inline void
1553 ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1554 {
1555 u8 dest[ETH_ALEN];
1556 int status;
1557 //IEEE80211DMESG("Rx probe");
1558 ieee->softmac_stats.rx_auth_rq++;
1559
1560 status = auth_rq_parse(skb, dest);
1561 if (status != -1) {
1562 ieee80211_resp_to_auth(ieee, status, dest);
1563 }
1564 //DMESG("Dest is "MACSTR, MAC2STR(dest));
1565
1566 }
1567
1568 inline void
1569 ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1570 {
1571
1572 u8 dest[ETH_ALEN];
1573 //unsigned long flags;
1574
1575 ieee->softmac_stats.rx_ass_rq++;
1576 if (assoc_rq_parse(skb,dest) != -1){
1577 ieee80211_resp_to_assoc_rq(ieee, dest);
1578 }
1579
1580 printk(KERN_INFO"New client associated: %pM\n", dest);
1581 }
1582
1583
1584
1585 void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr)
1586 {
1587
1588 struct sk_buff *buf = ieee80211_null_func(ieee, pwr);
1589
1590 if (buf)
1591 softmac_ps_mgmt_xmit(buf, ieee);
1592
1593 }
1594
1595
1596 short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l)
1597 {
1598 int timeout = 0;
1599
1600 u8 dtim;
1601 /*if(ieee->ps == IEEE80211_PS_DISABLED ||
1602 ieee->iw_mode != IW_MODE_INFRA ||
1603 ieee->state != IEEE80211_LINKED)
1604
1605 return 0;
1606 */
1607 dtim = ieee->current_network.dtim_data;
1608 //printk("DTIM\n");
1609
1610 if(!(dtim & IEEE80211_DTIM_VALID))
1611 return 0;
1612 else
1613 timeout = ieee->current_network.beacon_interval;
1614
1615 //printk("VALID\n");
1616 ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID;
1617
1618 if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps))
1619 return 2;
1620
1621 if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
1622 return 0;
1623
1624 if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
1625 return 0;
1626
1627 if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
1628 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
1629 return 0;
1630
1631 if(time_l){
1632 *time_l = ieee->current_network.last_dtim_sta_time[0]
1633 + MSECS((ieee->current_network.beacon_interval));
1634 //* ieee->current_network.dtim_period));
1635 //printk("beacon_interval:%x, dtim_period:%x, totol to Msecs:%x, HZ:%x\n", ieee->current_network.beacon_interval, ieee->current_network.dtim_period, MSECS(((ieee->current_network.beacon_interval * ieee->current_network.dtim_period))), HZ);
1636 }
1637
1638 if(time_h){
1639 *time_h = ieee->current_network.last_dtim_sta_time[1];
1640 if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
1641 *time_h += 1;
1642 }
1643
1644 return 1;
1645
1646
1647 }
1648
1649 inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
1650 {
1651
1652 u32 th,tl;
1653 short sleep;
1654
1655 unsigned long flags,flags2;
1656
1657 spin_lock_irqsave(&ieee->lock, flags);
1658
1659 if((ieee->ps == IEEE80211_PS_DISABLED ||
1660
1661 ieee->iw_mode != IW_MODE_INFRA ||
1662 ieee->state != IEEE80211_LINKED)){
1663
1664 //#warning CHECK_LOCK_HERE
1665 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1666
1667 ieee80211_sta_wakeup(ieee, 1);
1668
1669 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1670 }
1671
1672 sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl);
1673 // printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep);
1674 /* 2 wake, 1 sleep, 0 do nothing */
1675 if(sleep == 0)
1676 goto out;
1677
1678 if(sleep == 1){
1679
1680 if(ieee->sta_sleep == 1)
1681 ieee->enter_sleep_state(ieee->dev,th,tl);
1682
1683 else if(ieee->sta_sleep == 0){
1684 // printk("send null 1\n");
1685 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1686
1687 if(ieee->ps_is_queue_empty(ieee->dev)){
1688
1689
1690 ieee->sta_sleep = 2;
1691
1692 ieee->ps_request_tx_ack(ieee->dev);
1693
1694 ieee80211_sta_ps_send_null_frame(ieee,1);
1695
1696 ieee->ps_th = th;
1697 ieee->ps_tl = tl;
1698 }
1699 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1700
1701 }
1702
1703
1704 }else if(sleep == 2){
1705 //#warning CHECK_LOCK_HERE
1706 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1707
1708 // printk("send wakeup packet\n");
1709 ieee80211_sta_wakeup(ieee,1);
1710
1711 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1712 }
1713
1714 out:
1715 spin_unlock_irqrestore(&ieee->lock, flags);
1716
1717 }
1718
1719 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
1720 {
1721 if(ieee->sta_sleep == 0){
1722 if(nl){
1723 // printk("Warning: driver is probably failing to report TX ps error\n");
1724 ieee->ps_request_tx_ack(ieee->dev);
1725 ieee80211_sta_ps_send_null_frame(ieee, 0);
1726 }
1727 return;
1728
1729 }
1730
1731 if(ieee->sta_sleep == 1)
1732 ieee->sta_wake_up(ieee->dev);
1733
1734 ieee->sta_sleep = 0;
1735
1736 if(nl){
1737 ieee->ps_request_tx_ack(ieee->dev);
1738 ieee80211_sta_ps_send_null_frame(ieee, 0);
1739 }
1740 }
1741
1742 void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
1743 {
1744 unsigned long flags,flags2;
1745
1746 spin_lock_irqsave(&ieee->lock, flags);
1747 if(ieee->sta_sleep == 2){
1748 /* Null frame with PS bit set */
1749 if(success){
1750
1751 // printk("==================> %s::enter sleep state\n",__func__);
1752 ieee->sta_sleep = 1;
1753 ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
1754 }
1755 /* if the card report not success we can't be sure the AP
1756 * has not RXed so we can't assume the AP believe us awake
1757 */
1758 }
1759 /* 21112005 - tx again null without PS bit if lost */
1760 else {
1761
1762 if((ieee->sta_sleep == 0) && !success){
1763 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1764 ieee80211_sta_ps_send_null_frame(ieee, 0);
1765 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1766 }
1767 }
1768 spin_unlock_irqrestore(&ieee->lock, flags);
1769 }
1770
1771 inline int
1772 ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
1773 struct ieee80211_rx_stats *rx_stats, u16 type,
1774 u16 stype)
1775 {
1776 struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data;
1777 u16 errcode;
1778 u8* challenge=NULL;
1779 int chlen=0;
1780 int aid=0;
1781 struct ieee80211_assoc_response_frame *assoc_resp;
1782 struct ieee80211_info_element *info_element;
1783
1784 if(!ieee->proto_started)
1785 return 0;
1786
1787 if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED &&
1788 ieee->iw_mode == IW_MODE_INFRA &&
1789 ieee->state == IEEE80211_LINKED))
1790
1791 tasklet_schedule(&ieee->ps_task);
1792
1793 if (WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_PROBE_RESP &&
1794 WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_BEACON)
1795 ieee->last_rx_ps_time = jiffies;
1796
1797 switch (WLAN_FC_GET_STYPE(header->frame_control)) {
1798
1799 case IEEE80211_STYPE_ASSOC_RESP:
1800 case IEEE80211_STYPE_REASSOC_RESP:
1801
1802 IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
1803 WLAN_FC_GET_STYPE(header->frame_ctl));
1804 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1805 ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED &&
1806 ieee->iw_mode == IW_MODE_INFRA){
1807 if (0 == (errcode=assoc_parse(skb, &aid))){
1808 u16 left;
1809
1810 ieee->state=IEEE80211_LINKED;
1811 ieee->assoc_id = aid;
1812 ieee->softmac_stats.rx_ass_ok++;
1813
1814 //printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B");
1815 if(1 == rx_stats->nic_type) //card type is 8187
1816 {
1817 goto associate_complete;
1818 }
1819 assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data;
1820 info_element = &assoc_resp->info_element;
1821 left = skb->len - ((void*)info_element - (void*)assoc_resp);
1822
1823 while (left >= sizeof(struct ieee80211_info_element_hdr)) {
1824 if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) {
1825 printk(KERN_WARNING "[re]associate response error!");
1826 return 1;
1827 }
1828 switch (info_element->id) {
1829 case MFIE_TYPE_GENERIC:
1830 IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len);
1831 if (info_element->len >= 8 &&
1832 info_element->data[0] == 0x00 &&
1833 info_element->data[1] == 0x50 &&
1834 info_element->data[2] == 0xf2 &&
1835 info_element->data[3] == 0x02 &&
1836 info_element->data[4] == 0x01) {
1837 // Not care about version at present.
1838 //WMM Parameter Element
1839 memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\
1840 + 8),(info_element->len - 8));
1841
1842 if (((ieee->current_network.wmm_info^info_element->data[6])& \
1843 0x0f)||(!ieee->init_wmmparam_flag)) {
1844 // refresh parameter element for current network
1845 // update the register parameter for hardware
1846 ieee->init_wmmparam_flag = 1;
1847 queue_work(ieee->wq, &ieee->wmm_param_update_wq);
1848
1849 }
1850 //update info_element for current network
1851 ieee->current_network.wmm_info = info_element->data[6];
1852 }
1853 break;
1854 default:
1855 //nothing to do at present!!!
1856 break;
1857 }
1858
1859 left -= sizeof(struct ieee80211_info_element_hdr) +
1860 info_element->len;
1861 info_element = (struct ieee80211_info_element *)
1862 &info_element->data[info_element->len];
1863 }
1864 if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register
1865 {
1866 queue_work(ieee->wq,&ieee->wmm_param_update_wq);
1867 ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate
1868 }
1869 associate_complete:
1870 ieee80211_associate_complete(ieee);
1871 }else{
1872 ieee->softmac_stats.rx_ass_err++;
1873 IEEE80211_DEBUG_MGMT(
1874 "Association response status code 0x%x\n",
1875 errcode);
1876 ieee80211_associate_abort(ieee);
1877 }
1878 }
1879 break;
1880
1881 case IEEE80211_STYPE_ASSOC_REQ:
1882 case IEEE80211_STYPE_REASSOC_REQ:
1883
1884 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1885 ieee->iw_mode == IW_MODE_MASTER)
1886
1887 ieee80211_rx_assoc_rq(ieee, skb);
1888 break;
1889
1890 case IEEE80211_STYPE_AUTH:
1891
1892 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
1893 if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING &&
1894 ieee->iw_mode == IW_MODE_INFRA){
1895
1896 IEEE80211_DEBUG_MGMT("Received authentication response");
1897
1898 if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){
1899 if(ieee->open_wep || !challenge){
1900 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
1901 ieee->softmac_stats.rx_auth_rs_ok++;
1902
1903 ieee80211_associate_step2(ieee);
1904 }else{
1905 ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
1906 }
1907 }else{
1908 ieee->softmac_stats.rx_auth_rs_err++;
1909 IEEE80211_DEBUG_MGMT("Authentication response status code 0x%x",errcode);
1910 ieee80211_associate_abort(ieee);
1911 }
1912
1913 }else if (ieee->iw_mode == IW_MODE_MASTER){
1914 ieee80211_rx_auth_rq(ieee, skb);
1915 }
1916 }
1917 break;
1918
1919 case IEEE80211_STYPE_PROBE_REQ:
1920
1921 if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) &&
1922 ((ieee->iw_mode == IW_MODE_ADHOC ||
1923 ieee->iw_mode == IW_MODE_MASTER) &&
1924 ieee->state == IEEE80211_LINKED))
1925
1926 ieee80211_rx_probe_rq(ieee, skb);
1927 break;
1928
1929 case IEEE80211_STYPE_DISASSOC:
1930 case IEEE80211_STYPE_DEAUTH:
1931 /* FIXME for now repeat all the association procedure
1932 * both for disassociation and deauthentication
1933 */
1934 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1935 (ieee->state == IEEE80211_LINKED) &&
1936 (ieee->iw_mode == IW_MODE_INFRA) &&
1937 (!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){
1938 ieee->state = IEEE80211_ASSOCIATING;
1939 ieee->softmac_stats.reassoc++;
1940
1941 //notify_wx_assoc_event(ieee); //YJ,del,080828, do not notify os here
1942 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1943 }
1944
1945 break;
1946
1947 default:
1948 return -1;
1949 break;
1950 }
1951
1952 //dev_kfree_skb_any(skb);
1953 return 0;
1954 }
1955
1956
1957
1958 /* following are for a simpler TX queue management.
1959 * Instead of using netif_[stop/wake]_queue the driver
1960 * will uses these two function (plus a reset one), that
1961 * will internally uses the kernel netif_* and takes
1962 * care of the ieee802.11 fragmentation.
1963 * So the driver receives a fragment per time and might
1964 * call the stop function when it want without take care
1965 * to have enough room to TX an entire packet.
1966 * This might be useful if each fragment need it's own
1967 * descriptor, thus just keep a total free memory > than
1968 * the max fragmentation threshold is not enough.. If the
1969 * ieee802.11 stack passed a TXB struct then you needed
1970 * to keep N free descriptors where
1971 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
1972 * In this way you need just one and the 802.11 stack
1973 * will take care of buffering fragments and pass them to
1974 * to the driver later, when it wakes the queue.
1975 */
1976
1977 void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee)
1978 {
1979
1980
1981 unsigned long flags;
1982 int i;
1983
1984 spin_lock_irqsave(&ieee->lock,flags);
1985
1986 /* called with 2nd parm 0, no tx mgmt lock required */
1987 ieee80211_sta_wakeup(ieee,0);
1988
1989 for(i = 0; i < txb->nr_frags; i++) {
1990
1991 if (ieee->queue_stop){
1992 ieee->tx_pending.txb = txb;
1993 ieee->tx_pending.frag = i;
1994 goto exit;
1995 }else{
1996 ieee->softmac_data_hard_start_xmit(
1997 txb->fragments[i],
1998 ieee->dev,ieee->rate);
1999 //(i+1)<txb->nr_frags);
2000 ieee->stats.tx_packets++;
2001 ieee->stats.tx_bytes += txb->fragments[i]->len;
2002 ieee->dev->trans_start = jiffies;
2003 }
2004 }
2005
2006 ieee80211_txb_free(txb);
2007
2008 exit:
2009 spin_unlock_irqrestore(&ieee->lock,flags);
2010
2011 }
2012
2013 /* called with ieee->lock acquired */
2014 void ieee80211_resume_tx(struct ieee80211_device *ieee)
2015 {
2016 int i;
2017 for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {
2018
2019 if (ieee->queue_stop){
2020 ieee->tx_pending.frag = i;
2021 return;
2022 }else{
2023
2024 ieee->softmac_data_hard_start_xmit(
2025 ieee->tx_pending.txb->fragments[i],
2026 ieee->dev,ieee->rate);
2027 //(i+1)<ieee->tx_pending.txb->nr_frags);
2028 ieee->stats.tx_packets++;
2029 ieee->dev->trans_start = jiffies;
2030 }
2031 }
2032
2033
2034 ieee80211_txb_free(ieee->tx_pending.txb);
2035 ieee->tx_pending.txb = NULL;
2036 }
2037
2038
2039 void ieee80211_reset_queue(struct ieee80211_device *ieee)
2040 {
2041 unsigned long flags;
2042
2043 spin_lock_irqsave(&ieee->lock,flags);
2044 init_mgmt_queue(ieee);
2045 if (ieee->tx_pending.txb){
2046 ieee80211_txb_free(ieee->tx_pending.txb);
2047 ieee->tx_pending.txb = NULL;
2048 }
2049 ieee->queue_stop = 0;
2050 spin_unlock_irqrestore(&ieee->lock,flags);
2051
2052 }
2053
2054 void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
2055 {
2056
2057 unsigned long flags;
2058 struct sk_buff *skb;
2059 struct ieee80211_hdr_3addr *header;
2060
2061 spin_lock_irqsave(&ieee->lock,flags);
2062 if (! ieee->queue_stop) goto exit;
2063
2064 ieee->queue_stop = 0;
2065
2066 if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
2067 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
2068
2069 header = (struct ieee80211_hdr_3addr *) skb->data;
2070
2071 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2072
2073 if (ieee->seq_ctrl[0] == 0xFFF)
2074 ieee->seq_ctrl[0] = 0;
2075 else
2076 ieee->seq_ctrl[0]++;
2077
2078 //printk(KERN_ALERT "ieee80211_wake_queue \n");
2079 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
2080 dev_kfree_skb_any(skb);//edit by thomas
2081 }
2082 }
2083 if (!ieee->queue_stop && ieee->tx_pending.txb)
2084 ieee80211_resume_tx(ieee);
2085
2086 if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
2087 ieee->softmac_stats.swtxawake++;
2088 netif_wake_queue(ieee->dev);
2089 }
2090
2091 exit :
2092 spin_unlock_irqrestore(&ieee->lock,flags);
2093 }
2094
2095
2096 void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
2097 {
2098 //unsigned long flags;
2099 //spin_lock_irqsave(&ieee->lock,flags);
2100
2101 if (! netif_queue_stopped(ieee->dev)){
2102 netif_stop_queue(ieee->dev);
2103 ieee->softmac_stats.swtxstop++;
2104 }
2105 ieee->queue_stop = 1;
2106 //spin_unlock_irqrestore(&ieee->lock,flags);
2107
2108 }
2109
2110
2111 inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
2112 {
2113
2114 random_ether_addr(ieee->current_network.bssid);
2115 }
2116
2117 /* called in user context only */
2118 void ieee80211_start_master_bss(struct ieee80211_device *ieee)
2119 {
2120 ieee->assoc_id = 1;
2121
2122 if (ieee->current_network.ssid_len == 0){
2123 strncpy(ieee->current_network.ssid,
2124 IEEE80211_DEFAULT_TX_ESSID,
2125 IW_ESSID_MAX_SIZE);
2126
2127 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2128 ieee->ssid_set = 1;
2129 }
2130
2131 memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2132
2133 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2134 ieee->state = IEEE80211_LINKED;
2135 ieee->link_change(ieee->dev);
2136 notify_wx_assoc_event(ieee);
2137
2138 if (ieee->data_hard_resume)
2139 ieee->data_hard_resume(ieee->dev);
2140
2141 netif_carrier_on(ieee->dev);
2142 }
2143
2144 void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
2145 {
2146 if(ieee->raw_tx){
2147
2148 if (ieee->data_hard_resume)
2149 ieee->data_hard_resume(ieee->dev);
2150
2151 netif_carrier_on(ieee->dev);
2152 }
2153 }
2154
2155 void ieee80211_start_ibss_wq(struct work_struct *work)
2156 {
2157 struct delayed_work *dwork = to_delayed_work(work);
2158 struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq);
2159
2160 /* iwconfig mode ad-hoc will schedule this and return
2161 * on the other hand this will block further iwconfig SET
2162 * operations because of the wx_sem hold.
2163 * Anyway some most set operations set a flag to speed-up
2164 * (abort) this wq (when syncro scanning) before sleeping
2165 * on the semaphore
2166 */
2167
2168 down(&ieee->wx_sem);
2169
2170
2171 if (ieee->current_network.ssid_len == 0){
2172 strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID);
2173 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2174 ieee->ssid_set = 1;
2175 }
2176
2177 /* check if we have this cell in our network list */
2178 ieee80211_softmac_check_all_nets(ieee);
2179
2180 if(ieee->state == IEEE80211_NOLINK)
2181 ieee->current_network.channel = 10;
2182 /* if not then the state is not linked. Maybe the user switched to
2183 * ad-hoc mode just after being in monitor mode, or just after
2184 * being very few time in managed mode (so the card have had no
2185 * time to scan all the chans..) or we have just run up the iface
2186 * after setting ad-hoc mode. So we have to give another try..
2187 * Here, in ibss mode, should be safe to do this without extra care
2188 * (in bss mode we had to make sure no-one tried to associate when
2189 * we had just checked the ieee->state and we was going to start the
2190 * scan) because in ibss mode the ieee80211_new_net function, when
2191 * finds a good net, just set the ieee->state to IEEE80211_LINKED,
2192 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2193 * scan, that will stop at the first round because it sees the state
2194 * associated.
2195 */
2196 if (ieee->state == IEEE80211_NOLINK)
2197 ieee80211_start_scan_syncro(ieee);
2198
2199 /* the network definitively is not here.. create a new cell */
2200 if (ieee->state == IEEE80211_NOLINK){
2201 printk("creating new IBSS cell\n");
2202 if(!ieee->wap_set)
2203 ieee80211_randomize_cell(ieee);
2204
2205 if(ieee->modulation & IEEE80211_CCK_MODULATION){
2206
2207 ieee->current_network.rates_len = 4;
2208
2209 ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
2210 ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
2211 ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
2212 ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
2213
2214 }else
2215 ieee->current_network.rates_len = 0;
2216
2217 if(ieee->modulation & IEEE80211_OFDM_MODULATION){
2218 ieee->current_network.rates_ex_len = 8;
2219
2220 ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
2221 ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
2222 ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
2223 ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
2224 ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
2225 ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
2226 ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
2227 ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
2228
2229 ieee->rate = 540;
2230 }else{
2231 ieee->current_network.rates_ex_len = 0;
2232 ieee->rate = 110;
2233 }
2234
2235 // By default, WMM function will be disabled in IBSS mode
2236 ieee->current_network.QoS_Enable = 0;
2237
2238 ieee->current_network.atim_window = 0;
2239 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2240 if(ieee->short_slot)
2241 ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT;
2242
2243 }
2244
2245 ieee->state = IEEE80211_LINKED;
2246 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2247 ieee->link_change(ieee->dev);
2248
2249 notify_wx_assoc_event(ieee);
2250
2251 ieee80211_start_send_beacons(ieee);
2252 printk(KERN_WARNING "after sending beacon packet!\n");
2253
2254 if (ieee->data_hard_resume)
2255 ieee->data_hard_resume(ieee->dev);
2256
2257 netif_carrier_on(ieee->dev);
2258
2259 up(&ieee->wx_sem);
2260 }
2261 inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
2262 {
2263 queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100);
2264 }
2265
2266 /* this is called only in user context, with wx_sem held */
2267 void ieee80211_start_bss(struct ieee80211_device *ieee)
2268 {
2269 unsigned long flags;
2270 //
2271 // Ref: 802.11d 11.1.3.3
2272 // STA shall not start a BSS unless properly formed Beacon frame including a Country IE.
2273 //
2274 if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
2275 {
2276 if(! ieee->bGlobalDomain)
2277 {
2278 return;
2279 }
2280 }
2281 /* check if we have already found the net we
2282 * are interested in (if any).
2283 * if not (we are disassociated and we are not
2284 * in associating / authenticating phase) start the background scanning.
2285 */
2286 ieee80211_softmac_check_all_nets(ieee);
2287
2288 /* ensure no-one start an associating process (thus setting
2289 * the ieee->state to ieee80211_ASSOCIATING) while we
2290 * have just cheked it and we are going to enable scan.
2291 * The ieee80211_new_net function is always called with
2292 * lock held (from both ieee80211_softmac_check_all_nets and
2293 * the rx path), so we cannot be in the middle of such function
2294 */
2295 spin_lock_irqsave(&ieee->lock, flags);
2296
2297 //#ifdef ENABLE_IPS
2298 // printk("start bss ENABLE_IPS\n");
2299 //#else
2300 if (ieee->state == IEEE80211_NOLINK){
2301 ieee->actscanning = true;
2302 ieee80211_rtl_start_scan(ieee);
2303 }
2304 //#endif
2305 spin_unlock_irqrestore(&ieee->lock, flags);
2306 }
2307
2308 /* called only in userspace context */
2309 void ieee80211_disassociate(struct ieee80211_device *ieee)
2310 {
2311 netif_carrier_off(ieee->dev);
2312
2313 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2314 ieee80211_reset_queue(ieee);
2315
2316 if (ieee->data_hard_stop)
2317 ieee->data_hard_stop(ieee->dev);
2318
2319 if(IS_DOT11D_ENABLE(ieee))
2320 Dot11d_Reset(ieee);
2321
2322 ieee->link_change(ieee->dev);
2323 if (ieee->state == IEEE80211_LINKED)
2324 notify_wx_assoc_event(ieee);
2325 ieee->state = IEEE80211_NOLINK;
2326
2327 }
2328 void ieee80211_associate_retry_wq(struct work_struct *work)
2329 {
2330 struct delayed_work *dwork = to_delayed_work(work);
2331 struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq);
2332 unsigned long flags;
2333 down(&ieee->wx_sem);
2334 if(!ieee->proto_started)
2335 goto exit;
2336 if(ieee->state != IEEE80211_ASSOCIATING_RETRY)
2337 goto exit;
2338 /* until we do not set the state to IEEE80211_NOLINK
2339 * there are no possibility to have someone else trying
2340 * to start an association procedure (we get here with
2341 * ieee->state = IEEE80211_ASSOCIATING).
2342 * When we set the state to IEEE80211_NOLINK it is possible
2343 * that the RX path run an attempt to associate, but
2344 * both ieee80211_softmac_check_all_nets and the
2345 * RX path works with ieee->lock held so there are no
2346 * problems. If we are still disassociated then start a scan.
2347 * the lock here is necessary to ensure no one try to start
2348 * an association procedure when we have just checked the
2349 * state and we are going to start the scan.
2350 */
2351 ieee->state = IEEE80211_NOLINK;
2352 ieee->beinretry = true;
2353 ieee80211_softmac_check_all_nets(ieee);
2354
2355 spin_lock_irqsave(&ieee->lock, flags);
2356
2357 if(ieee->state == IEEE80211_NOLINK){
2358 ieee->beinretry = false;
2359 ieee->actscanning = true;
2360 ieee80211_rtl_start_scan(ieee);
2361 }
2362 //YJ,add,080828, notify os here
2363 if(ieee->state == IEEE80211_NOLINK)
2364 {
2365 notify_wx_assoc_event(ieee);
2366 }
2367 //YJ,add,080828,end
2368 spin_unlock_irqrestore(&ieee->lock, flags);
2369
2370 exit:
2371 up(&ieee->wx_sem);
2372 }
2373
2374 struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee)
2375 {
2376 u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff};
2377
2378 struct sk_buff *skb = NULL;
2379 struct ieee80211_probe_response *b;
2380
2381 skb = ieee80211_probe_resp(ieee, broadcast_addr);
2382 if (!skb)
2383 return NULL;
2384
2385 b = (struct ieee80211_probe_response *) skb->data;
2386 b->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_BEACON);
2387
2388 return skb;
2389
2390 }
2391
2392 struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee)
2393 {
2394 struct sk_buff *skb;
2395 struct ieee80211_probe_response *b;
2396
2397 skb = ieee80211_get_beacon_(ieee);
2398 if(!skb)
2399 return NULL;
2400
2401 b = (struct ieee80211_probe_response *) skb->data;
2402 b->header.seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2403
2404 if (ieee->seq_ctrl[0] == 0xFFF)
2405 ieee->seq_ctrl[0] = 0;
2406 else
2407 ieee->seq_ctrl[0]++;
2408
2409 return skb;
2410 }
2411
2412 void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee)
2413 {
2414 ieee->sync_scan_hurryup = 1;
2415 down(&ieee->wx_sem);
2416 ieee80211_stop_protocol(ieee);
2417 up(&ieee->wx_sem);
2418 }
2419
2420
2421 void ieee80211_stop_protocol(struct ieee80211_device *ieee)
2422 {
2423 if (!ieee->proto_started)
2424 return;
2425
2426 ieee->proto_started = 0;
2427
2428 ieee80211_stop_send_beacons(ieee);
2429 if((ieee->iw_mode == IW_MODE_INFRA)&&(ieee->state == IEEE80211_LINKED)) {
2430 SendDisassociation(ieee,NULL,WLAN_REASON_DISASSOC_STA_HAS_LEFT);
2431 }
2432 del_timer_sync(&ieee->associate_timer);
2433 cancel_delayed_work(&ieee->associate_retry_wq);
2434 cancel_delayed_work(&ieee->start_ibss_wq);
2435 ieee80211_stop_scan(ieee);
2436
2437 ieee80211_disassociate(ieee);
2438 }
2439
2440 void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee)
2441 {
2442 ieee->sync_scan_hurryup = 0;
2443 down(&ieee->wx_sem);
2444 ieee80211_start_protocol(ieee);
2445 up(&ieee->wx_sem);
2446 }
2447
2448 void ieee80211_start_protocol(struct ieee80211_device *ieee)
2449 {
2450 short ch = 0;
2451 int i = 0;
2452
2453 if (ieee->proto_started)
2454 return;
2455
2456 ieee->proto_started = 1;
2457
2458 if (ieee->current_network.channel == 0){
2459 do{
2460 ch++;
2461 if (ch > MAX_CHANNEL_NUMBER)
2462 return; /* no channel found */
2463
2464 }while(!GET_DOT11D_INFO(ieee)->channel_map[ch]);
2465
2466 ieee->current_network.channel = ch;
2467 }
2468
2469 if (ieee->current_network.beacon_interval == 0)
2470 ieee->current_network.beacon_interval = 100;
2471 ieee->set_chan(ieee->dev,ieee->current_network.channel);
2472
2473 for(i = 0; i < 17; i++) {
2474 ieee->last_rxseq_num[i] = -1;
2475 ieee->last_rxfrag_num[i] = -1;
2476 ieee->last_packet_time[i] = 0;
2477 }
2478
2479 ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers.
2480
2481
2482 /* if the user set the MAC of the ad-hoc cell and then
2483 * switch to managed mode, shall we make sure that association
2484 * attempts does not fail just because the user provide the essid
2485 * and the nic is still checking for the AP MAC ??
2486 */
2487 switch (ieee->iw_mode) {
2488 case IW_MODE_AUTO:
2489 ieee->iw_mode = IW_MODE_INFRA;
2490 //not set break here intentionly
2491 case IW_MODE_INFRA:
2492 ieee80211_start_bss(ieee);
2493 break;
2494
2495 case IW_MODE_ADHOC:
2496 ieee80211_start_ibss(ieee);
2497 break;
2498
2499 case IW_MODE_MASTER:
2500 ieee80211_start_master_bss(ieee);
2501 break;
2502
2503 case IW_MODE_MONITOR:
2504 ieee80211_start_monitor_mode(ieee);
2505 break;
2506
2507 default:
2508 ieee->iw_mode = IW_MODE_INFRA;
2509 ieee80211_start_bss(ieee);
2510 break;
2511 }
2512 }
2513
2514
2515 #define DRV_NAME "Ieee80211"
2516 void ieee80211_softmac_init(struct ieee80211_device *ieee)
2517 {
2518 int i;
2519 memset(&ieee->current_network, 0, sizeof(struct ieee80211_network));
2520
2521 ieee->state = IEEE80211_NOLINK;
2522 ieee->sync_scan_hurryup = 0;
2523 for(i = 0; i < 5; i++) {
2524 ieee->seq_ctrl[i] = 0;
2525 }
2526
2527 ieee->assoc_id = 0;
2528 ieee->queue_stop = 0;
2529 ieee->scanning = 0;
2530 ieee->softmac_features = 0; //so IEEE2100-like driver are happy
2531 ieee->wap_set = 0;
2532 ieee->ssid_set = 0;
2533 ieee->proto_started = 0;
2534 ieee->basic_rate = IEEE80211_DEFAULT_BASIC_RATE;
2535 ieee->rate = 3;
2536 //#ifdef ENABLE_LPS
2537 ieee->ps = IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST;
2538 //#else
2539 // ieee->ps = IEEE80211_PS_DISABLED;
2540 //#endif
2541 ieee->sta_sleep = 0;
2542 //by amy
2543 ieee->bInactivePs = false;
2544 ieee->actscanning = false;
2545 ieee->ListenInterval = 2;
2546 ieee->NumRxDataInPeriod = 0; //YJ,add,080828
2547 ieee->NumRxBcnInPeriod = 0; //YJ,add,080828
2548 ieee->NumRxOkTotal = 0;//+by amy 080312
2549 ieee->NumRxUnicast = 0;//YJ,add,080828,for keep alive
2550 ieee->beinretry = false;
2551 ieee->bHwRadioOff = false;
2552 //by amy
2553
2554 init_mgmt_queue(ieee);
2555
2556 ieee->tx_pending.txb = NULL;
2557
2558 init_timer(&ieee->associate_timer);
2559 ieee->associate_timer.data = (unsigned long)ieee;
2560 ieee->associate_timer.function = ieee80211_associate_abort_cb;
2561
2562 init_timer(&ieee->beacon_timer);
2563 ieee->beacon_timer.data = (unsigned long) ieee;
2564 ieee->beacon_timer.function = ieee80211_send_beacon_cb;
2565
2566 ieee->wq = create_workqueue(DRV_NAME);
2567
2568 INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq);
2569 INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq);
2570 INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq);
2571 INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq);
2572 INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq);
2573 INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq);
2574 // INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq);
2575
2576 sema_init(&ieee->wx_sem, 1);
2577 sema_init(&ieee->scan_sem, 1);
2578
2579 spin_lock_init(&ieee->mgmt_tx_lock);
2580 spin_lock_init(&ieee->beacon_lock);
2581
2582 tasklet_init(&ieee->ps_task,
2583 (void(*)(unsigned long)) ieee80211_sta_ps,
2584 (unsigned long)ieee);
2585 ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
2586 }
2587
2588 void ieee80211_softmac_free(struct ieee80211_device *ieee)
2589 {
2590 down(&ieee->wx_sem);
2591
2592 del_timer_sync(&ieee->associate_timer);
2593 cancel_delayed_work(&ieee->associate_retry_wq);
2594
2595
2596 //add for RF power on power of by lizhaoming 080512
2597 cancel_delayed_work(&ieee->GPIOChangeRFWorkItem);
2598
2599 destroy_workqueue(ieee->wq);
2600 kfree(ieee->pDot11dInfo);
2601 up(&ieee->wx_sem);
2602 }
2603
2604 /********************************************************
2605 * Start of WPA code. *
2606 * this is stolen from the ipw2200 driver *
2607 ********************************************************/
2608
2609
2610 static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value)
2611 {
2612 /* This is called when wpa_supplicant loads and closes the driver
2613 * interface. */
2614 printk("%s WPA\n",value ? "enabling" : "disabling");
2615 ieee->wpa_enabled = value;
2616 return 0;
2617 }
2618
2619
2620 void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len)
2621 {
2622 /* make sure WPA is enabled */
2623 ieee80211_wpa_enable(ieee, 1);
2624
2625 ieee80211_disassociate(ieee);
2626 }
2627
2628
2629 static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason)
2630 {
2631
2632 int ret = 0;
2633
2634 switch (command) {
2635 case IEEE_MLME_STA_DEAUTH:
2636 // silently ignore
2637 break;
2638
2639 case IEEE_MLME_STA_DISASSOC:
2640 ieee80211_disassociate(ieee);
2641 break;
2642
2643 default:
2644 printk("Unknown MLME request: %d\n", command);
2645 ret = -EOPNOTSUPP;
2646 }
2647
2648 return ret;
2649 }
2650
2651
2652 static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee,
2653 struct ieee_param *param, int plen)
2654 {
2655 u8 *buf;
2656
2657 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
2658 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
2659 return -EINVAL;
2660
2661 if (param->u.wpa_ie.len) {
2662 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
2663 GFP_KERNEL);
2664 if (buf == NULL)
2665 return -ENOMEM;
2666
2667 kfree(ieee->wpa_ie);
2668 ieee->wpa_ie = buf;
2669 ieee->wpa_ie_len = param->u.wpa_ie.len;
2670 } else {
2671 kfree(ieee->wpa_ie);
2672 ieee->wpa_ie = NULL;
2673 ieee->wpa_ie_len = 0;
2674 }
2675
2676 ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
2677 return 0;
2678 }
2679
2680 #define AUTH_ALG_OPEN_SYSTEM 0x1
2681 #define AUTH_ALG_SHARED_KEY 0x2
2682
2683 static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value)
2684 {
2685
2686 struct ieee80211_security sec = {
2687 .flags = SEC_AUTH_MODE,
2688 };
2689 int ret = 0;
2690
2691 if (value & AUTH_ALG_SHARED_KEY) {
2692 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
2693 ieee->open_wep = 0;
2694 } else {
2695 sec.auth_mode = WLAN_AUTH_OPEN;
2696 ieee->open_wep = 1;
2697 }
2698
2699 if (ieee->set_security)
2700 ieee->set_security(ieee->dev, &sec);
2701 else
2702 ret = -EOPNOTSUPP;
2703
2704 return ret;
2705 }
2706
2707 static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value)
2708 {
2709 int ret=0;
2710 unsigned long flags;
2711
2712 switch (name) {
2713 case IEEE_PARAM_WPA_ENABLED:
2714 ret = ieee80211_wpa_enable(ieee, value);
2715 break;
2716
2717 case IEEE_PARAM_TKIP_COUNTERMEASURES:
2718 ieee->tkip_countermeasures=value;
2719 break;
2720
2721 case IEEE_PARAM_DROP_UNENCRYPTED: {
2722 /* HACK:
2723 *
2724 * wpa_supplicant calls set_wpa_enabled when the driver
2725 * is loaded and unloaded, regardless of if WPA is being
2726 * used. No other calls are made which can be used to
2727 * determine if encryption will be used or not prior to
2728 * association being expected. If encryption is not being
2729 * used, drop_unencrypted is set to false, else true -- we
2730 * can use this to determine if the CAP_PRIVACY_ON bit should
2731 * be set.
2732 */
2733 struct ieee80211_security sec = {
2734 .flags = SEC_ENABLED,
2735 .enabled = value,
2736 };
2737 ieee->drop_unencrypted = value;
2738 /* We only change SEC_LEVEL for open mode. Others
2739 * are set by ipw_wpa_set_encryption.
2740 */
2741 if (!value) {
2742 sec.flags |= SEC_LEVEL;
2743 sec.level = SEC_LEVEL_0;
2744 }
2745 else {
2746 sec.flags |= SEC_LEVEL;
2747 sec.level = SEC_LEVEL_1;
2748 }
2749 if (ieee->set_security)
2750 ieee->set_security(ieee->dev, &sec);
2751 break;
2752 }
2753
2754 case IEEE_PARAM_PRIVACY_INVOKED:
2755 ieee->privacy_invoked=value;
2756 break;
2757
2758 case IEEE_PARAM_AUTH_ALGS:
2759 ret = ieee80211_wpa_set_auth_algs(ieee, value);
2760 break;
2761
2762 case IEEE_PARAM_IEEE_802_1X:
2763 ieee->ieee802_1x=value;
2764 break;
2765 case IEEE_PARAM_WPAX_SELECT:
2766 // added for WPA2 mixed mode
2767 //printk(KERN_WARNING "------------------------>wpax value = %x\n", value);
2768 spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
2769 ieee->wpax_type_set = 1;
2770 ieee->wpax_type_notify = value;
2771 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
2772 break;
2773
2774 default:
2775 printk("Unknown WPA param: %d\n",name);
2776 ret = -EOPNOTSUPP;
2777 }
2778
2779 return ret;
2780 }
2781
2782 /* implementation borrowed from hostap driver */
2783
2784 static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
2785 struct ieee_param *param, int param_len)
2786 {
2787 int ret = 0;
2788
2789 struct ieee80211_crypto_ops *ops;
2790 struct ieee80211_crypt_data **crypt;
2791
2792 struct ieee80211_security sec = {
2793 .flags = 0,
2794 };
2795
2796 param->u.crypt.err = 0;
2797 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
2798
2799 if (param_len !=
2800 (int) ((char *) param->u.crypt.key - (char *) param) +
2801 param->u.crypt.key_len) {
2802 printk("Len mismatch %d, %d\n", param_len,
2803 param->u.crypt.key_len);
2804 return -EINVAL;
2805 }
2806 if (is_broadcast_ether_addr(param->sta_addr)) {
2807 if (param->u.crypt.idx >= WEP_KEYS)
2808 return -EINVAL;
2809 crypt = &ieee->crypt[param->u.crypt.idx];
2810 } else {
2811 return -EINVAL;
2812 }
2813
2814 if (strcmp(param->u.crypt.alg, "none") == 0) {
2815 if (crypt) {
2816 sec.enabled = 0;
2817 // FIXME FIXME
2818 //sec.encrypt = 0;
2819 sec.level = SEC_LEVEL_0;
2820 sec.flags |= SEC_ENABLED | SEC_LEVEL;
2821 ieee80211_crypt_delayed_deinit(ieee, crypt);
2822 }
2823 goto done;
2824 }
2825 sec.enabled = 1;
2826 // FIXME FIXME
2827 // sec.encrypt = 1;
2828 sec.flags |= SEC_ENABLED;
2829
2830 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
2831 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
2832 strcmp(param->u.crypt.alg, "TKIP"))
2833 goto skip_host_crypt;
2834
2835 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2836 if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0)
2837 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2838 else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0)
2839 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2840 else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0)
2841 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2842 if (ops == NULL) {
2843 printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
2844 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
2845 ret = -EINVAL;
2846 goto done;
2847 }
2848
2849 if (*crypt == NULL || (*crypt)->ops != ops) {
2850 struct ieee80211_crypt_data *new_crypt;
2851
2852 ieee80211_crypt_delayed_deinit(ieee, crypt);
2853
2854 new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
2855 if (new_crypt == NULL) {
2856 ret = -ENOMEM;
2857 goto done;
2858 }
2859 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
2860 new_crypt->ops = ops;
2861 if (new_crypt->ops)
2862 new_crypt->priv =
2863 new_crypt->ops->init(param->u.crypt.idx);
2864
2865 if (new_crypt->priv == NULL) {
2866 kfree(new_crypt);
2867 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
2868 ret = -EINVAL;
2869 goto done;
2870 }
2871
2872 *crypt = new_crypt;
2873 }
2874
2875 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
2876 (*crypt)->ops->set_key(param->u.crypt.key,
2877 param->u.crypt.key_len, param->u.crypt.seq,
2878 (*crypt)->priv) < 0) {
2879 printk("key setting failed\n");
2880 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
2881 ret = -EINVAL;
2882 goto done;
2883 }
2884
2885 skip_host_crypt:
2886 if (param->u.crypt.set_tx) {
2887 ieee->tx_keyidx = param->u.crypt.idx;
2888 sec.active_key = param->u.crypt.idx;
2889 sec.flags |= SEC_ACTIVE_KEY;
2890 } else
2891 sec.flags &= ~SEC_ACTIVE_KEY;
2892
2893 if (param->u.crypt.alg != NULL) {
2894 memcpy(sec.keys[param->u.crypt.idx],
2895 param->u.crypt.key,
2896 param->u.crypt.key_len);
2897 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
2898 sec.flags |= (1 << param->u.crypt.idx);
2899
2900 if (strcmp(param->u.crypt.alg, "WEP") == 0) {
2901 sec.flags |= SEC_LEVEL;
2902 sec.level = SEC_LEVEL_1;
2903 } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
2904 sec.flags |= SEC_LEVEL;
2905 sec.level = SEC_LEVEL_2;
2906 } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
2907 sec.flags |= SEC_LEVEL;
2908 sec.level = SEC_LEVEL_3;
2909 }
2910 }
2911 done:
2912 if (ieee->set_security)
2913 ieee->set_security(ieee->dev, &sec);
2914
2915 /* Do not reset port if card is in Managed mode since resetting will
2916 * generate new IEEE 802.11 authentication which may end up in looping
2917 * with IEEE 802.1X. If your hardware requires a reset after WEP
2918 * configuration (for example... Prism2), implement the reset_port in
2919 * the callbacks structures used to initialize the 802.11 stack. */
2920 if (ieee->reset_on_keychange &&
2921 ieee->iw_mode != IW_MODE_INFRA &&
2922 ieee->reset_port &&
2923 ieee->reset_port(ieee->dev)) {
2924 printk("reset_port failed\n");
2925 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
2926 return -EINVAL;
2927 }
2928
2929 return ret;
2930 }
2931
2932 int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p)
2933 {
2934 struct ieee_param *param;
2935 int ret=0;
2936
2937 down(&ieee->wx_sem);
2938 //IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length);
2939
2940 if (p->length < sizeof(struct ieee_param) || !p->pointer){
2941 ret = -EINVAL;
2942 goto out;
2943 }
2944
2945 param = kmalloc(p->length, GFP_KERNEL);
2946 if (param == NULL){
2947 ret = -ENOMEM;
2948 goto out;
2949 }
2950 if (copy_from_user(param, p->pointer, p->length)) {
2951 kfree(param);
2952 ret = -EFAULT;
2953 goto out;
2954 }
2955
2956 switch (param->cmd) {
2957
2958 case IEEE_CMD_SET_WPA_PARAM:
2959 ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name,
2960 param->u.wpa_param.value);
2961 break;
2962
2963 case IEEE_CMD_SET_WPA_IE:
2964 ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length);
2965 break;
2966
2967 case IEEE_CMD_SET_ENCRYPTION:
2968 ret = ieee80211_wpa_set_encryption(ieee, param, p->length);
2969 break;
2970
2971 case IEEE_CMD_MLME:
2972 ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command,
2973 param->u.mlme.reason_code);
2974 break;
2975
2976 default:
2977 printk("Unknown WPA supplicant request: %d\n",param->cmd);
2978 ret = -EOPNOTSUPP;
2979 break;
2980 }
2981
2982 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
2983 ret = -EFAULT;
2984
2985 kfree(param);
2986 out:
2987 up(&ieee->wx_sem);
2988
2989 return ret;
2990 }
2991
2992 void notify_wx_assoc_event(struct ieee80211_device *ieee)
2993 {
2994 union iwreq_data wrqu;
2995 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2996 if (ieee->state == IEEE80211_LINKED)
2997 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
2998 else
2999 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
3000 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3001 }
Linux kernel - Deliverables
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