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24#include <linux/compiler.h>
25
26#include <linux/errno.h>
27#include <linux/if_arp.h>
28#include <linux/in6.h>
29#include <linux/in.h>
30#include <linux/ip.h>
31#include <linux/kernel.h>
32#include <linux/module.h>
33#include <linux/netdevice.h>
34#include <linux/pci.h>
35#include <linux/proc_fs.h>
36#include <linux/skbuff.h>
37#include <linux/slab.h>
38#include <linux/tcp.h>
39#include <linux/types.h>
40#include <linux/wireless.h>
41#include <linux/etherdevice.h>
42#include <asm/uaccess.h>
43#include <linux/ctype.h>
44
45#include "ieee80211.h"
46#include "dot11d.h"
47static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
48 struct sk_buff *skb,
49 struct ieee80211_rx_stats *rx_stats)
50{
51 struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *)skb->data;
52 u16 fc = le16_to_cpu(hdr->frame_ctl);
53
54 skb->dev = ieee->dev;
55 skb_reset_mac_header(skb);
56
57 skb_pull(skb, ieee80211_get_hdrlen(fc));
58 skb->pkt_type = PACKET_OTHERHOST;
59 skb->protocol = __constant_htons(ETH_P_80211_RAW);
60 memset(skb->cb, 0, sizeof(skb->cb));
61 netif_rx(skb);
62}
63
64
65
66static struct ieee80211_frag_entry *
67ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq,
68 unsigned int frag, u8 tid,u8 *src, u8 *dst)
69{
70 struct ieee80211_frag_entry *entry;
71 int i;
72
73 for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) {
74 entry = &ieee->frag_cache[tid][i];
75 if (entry->skb != NULL &&
76 time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
77 IEEE80211_DEBUG_FRAG(
78 "expiring fragment cache entry "
79 "seq=%u last_frag=%u\n",
80 entry->seq, entry->last_frag);
81 dev_kfree_skb_any(entry->skb);
82 entry->skb = NULL;
83 }
84
85 if (entry->skb != NULL && entry->seq == seq &&
86 (entry->last_frag + 1 == frag || frag == -1) &&
87 memcmp(entry->src_addr, src, ETH_ALEN) == 0 &&
88 memcmp(entry->dst_addr, dst, ETH_ALEN) == 0)
89 return entry;
90 }
91
92 return NULL;
93}
94
95
96static struct sk_buff *
97ieee80211_frag_cache_get(struct ieee80211_device *ieee,
98 struct ieee80211_hdr_4addr *hdr)
99{
100 struct sk_buff *skb = NULL;
101 u16 fc = le16_to_cpu(hdr->frame_ctl);
102 u16 sc = le16_to_cpu(hdr->seq_ctl);
103 unsigned int frag = WLAN_GET_SEQ_FRAG(sc);
104 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
105 struct ieee80211_frag_entry *entry;
106 struct ieee80211_hdr_3addrqos *hdr_3addrqos;
107 struct ieee80211_hdr_4addrqos *hdr_4addrqos;
108 u8 tid;
109
110 if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
111 hdr_4addrqos = (struct ieee80211_hdr_4addrqos *)hdr;
112 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
113 tid = UP2AC(tid);
114 tid ++;
115 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
116 hdr_3addrqos = (struct ieee80211_hdr_3addrqos *)hdr;
117 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
118 tid = UP2AC(tid);
119 tid ++;
120 } else {
121 tid = 0;
122 }
123
124 if (frag == 0) {
125
126 skb = dev_alloc_skb(ieee->dev->mtu +
127 sizeof(struct ieee80211_hdr_4addr) +
128 8 +
129 2 +
130 8 +
131 ETH_ALEN +
132 (IEEE80211_QOS_HAS_SEQ(fc)?2:0) );
133 if (skb == NULL)
134 return NULL;
135
136 entry = &ieee->frag_cache[tid][ieee->frag_next_idx[tid]];
137 ieee->frag_next_idx[tid]++;
138 if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN)
139 ieee->frag_next_idx[tid] = 0;
140
141 if (entry->skb != NULL)
142 dev_kfree_skb_any(entry->skb);
143
144 entry->first_frag_time = jiffies;
145 entry->seq = seq;
146 entry->last_frag = frag;
147 entry->skb = skb;
148 memcpy(entry->src_addr, hdr->addr2, ETH_ALEN);
149 memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN);
150 } else {
151
152
153 entry = ieee80211_frag_cache_find(ieee, seq, frag, tid,hdr->addr2,
154 hdr->addr1);
155 if (entry != NULL) {
156 entry->last_frag = frag;
157 skb = entry->skb;
158 }
159 }
160
161 return skb;
162}
163
164
165
166static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
167 struct ieee80211_hdr_4addr *hdr)
168{
169 u16 fc = le16_to_cpu(hdr->frame_ctl);
170 u16 sc = le16_to_cpu(hdr->seq_ctl);
171 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
172 struct ieee80211_frag_entry *entry;
173 struct ieee80211_hdr_3addrqos *hdr_3addrqos;
174 struct ieee80211_hdr_4addrqos *hdr_4addrqos;
175 u8 tid;
176
177 if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
178 hdr_4addrqos = (struct ieee80211_hdr_4addrqos *)hdr;
179 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
180 tid = UP2AC(tid);
181 tid ++;
182 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
183 hdr_3addrqos = (struct ieee80211_hdr_3addrqos *)hdr;
184 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
185 tid = UP2AC(tid);
186 tid ++;
187 } else {
188 tid = 0;
189 }
190
191 entry = ieee80211_frag_cache_find(ieee, seq, -1, tid,hdr->addr2,
192 hdr->addr1);
193
194 if (entry == NULL) {
195 IEEE80211_DEBUG_FRAG(
196 "could not invalidate fragment cache "
197 "entry (seq=%u)\n", seq);
198 return -1;
199 }
200
201 entry->skb = NULL;
202 return 0;
203}
204
205
206
207
208
209
210
211
212static inline int
213ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
214 struct ieee80211_rx_stats *rx_stats, u16 type,
215 u16 stype)
216{
217
218
219
220
221 struct ieee80211_hdr_3addr * hdr = (struct ieee80211_hdr_3addr *)skb->data;
222
223 rx_stats->len = skb->len;
224 ieee80211_rx_mgt(ieee,(struct ieee80211_hdr_4addr *)skb->data,rx_stats);
225
226 if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN)))
227 {
228 dev_kfree_skb_any(skb);
229 return 0;
230 }
231
232 ieee80211_rx_frame_softmac(ieee, skb, rx_stats, type, stype);
233
234 dev_kfree_skb_any(skb);
235
236 return 0;
237
238 #ifdef NOT_YET
239 if (ieee->iw_mode == IW_MODE_MASTER) {
240 printk(KERN_DEBUG "%s: Master mode not yet supported.\n",
241 ieee->dev->name);
242 return 0;
243
244
245
246 }
247
248 if (ieee->hostapd && type == IEEE80211_TYPE_MGMT) {
249 if (stype == WLAN_FC_STYPE_BEACON &&
250 ieee->iw_mode == IW_MODE_MASTER) {
251 struct sk_buff *skb2;
252
253
254 skb2 = skb_clone(skb, GFP_ATOMIC);
255 if (skb2)
256 hostap_rx(skb2->dev, skb2, rx_stats);
257 }
258
259
260
261 ieee->apdevstats.rx_packets++;
262 ieee->apdevstats.rx_bytes += skb->len;
263 prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT);
264 return 0;
265 }
266
267 if (ieee->iw_mode == IW_MODE_MASTER) {
268 if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) {
269 printk(KERN_DEBUG "%s: unknown management frame "
270 "(type=0x%02x, stype=0x%02x) dropped\n",
271 skb->dev->name, type, stype);
272 return -1;
273 }
274
275 hostap_rx(skb->dev, skb, rx_stats);
276 return 0;
277 }
278
279 printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame "
280 "received in non-Host AP mode\n", skb->dev->name);
281 return -1;
282 #endif
283}
284
285
286
287
288
289static unsigned char rfc1042_header[] =
290{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
291
292static unsigned char bridge_tunnel_header[] =
293{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
294
295
296
297static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
298 struct sk_buff *skb, size_t hdrlen)
299{
300 struct net_device *dev = ieee->dev;
301 u16 fc, ethertype;
302 struct ieee80211_hdr_4addr *hdr;
303 u8 *pos;
304
305 if (skb->len < 24)
306 return 0;
307
308 hdr = (struct ieee80211_hdr_4addr *) skb->data;
309 fc = le16_to_cpu(hdr->frame_ctl);
310
311
312 if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
313 IEEE80211_FCTL_TODS &&
314 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 &&
315 memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) {
316
317 } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
318 IEEE80211_FCTL_FROMDS &&
319 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) {
320
321 } else
322 return 0;
323
324 if (skb->len < 24 + 8)
325 return 0;
326
327
328
329 pos = skb->data + hdrlen;
330 ethertype = (pos[6] << 8) | pos[7];
331 if (ethertype == ETH_P_PAE)
332 return 1;
333
334 return 0;
335}
336
337
338static inline int
339ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb,
340 struct ieee80211_crypt_data *crypt)
341{
342 struct ieee80211_hdr_4addr *hdr;
343 int res, hdrlen;
344
345 if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL)
346 return 0;
347 if (ieee->hwsec_active)
348 {
349 cb_desc *tcb_desc = (cb_desc *)(skb->cb+ MAX_DEV_ADDR_SIZE);
350 tcb_desc->bHwSec = 1;
351 }
352 hdr = (struct ieee80211_hdr_4addr *) skb->data;
353 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
354
355#ifdef CONFIG_IEEE80211_CRYPT_TKIP
356 if (ieee->tkip_countermeasures &&
357 strcmp(crypt->ops->name, "TKIP") == 0) {
358 if (net_ratelimit()) {
359 printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
360 "received packet from %pM\n",
361 ieee->dev->name, hdr->addr2);
362 }
363 return -1;
364 }
365#endif
366
367 atomic_inc(&crypt->refcnt);
368 res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv);
369 atomic_dec(&crypt->refcnt);
370 if (res < 0) {
371 IEEE80211_DEBUG_DROP(
372 "decryption failed (SA=%pM"
373 ") res=%d\n", hdr->addr2, res);
374 if (res == -2)
375 IEEE80211_DEBUG_DROP("Decryption failed ICV "
376 "mismatch (key %d)\n",
377 skb->data[hdrlen + 3] >> 6);
378 ieee->ieee_stats.rx_discards_undecryptable++;
379 return -1;
380 }
381
382 return res;
383}
384
385
386
387static inline int
388ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *skb,
389 int keyidx, struct ieee80211_crypt_data *crypt)
390{
391 struct ieee80211_hdr_4addr *hdr;
392 int res, hdrlen;
393
394 if (crypt == NULL || crypt->ops->decrypt_msdu == NULL)
395 return 0;
396 if (ieee->hwsec_active)
397 {
398 cb_desc *tcb_desc = (cb_desc *)(skb->cb+ MAX_DEV_ADDR_SIZE);
399 tcb_desc->bHwSec = 1;
400 }
401
402 hdr = (struct ieee80211_hdr_4addr *) skb->data;
403 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
404
405 atomic_inc(&crypt->refcnt);
406 res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv);
407 atomic_dec(&crypt->refcnt);
408 if (res < 0) {
409 printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed"
410 " (SA=%pM keyidx=%d)\n",
411 ieee->dev->name, hdr->addr2, keyidx);
412 return -1;
413 }
414
415 return 0;
416}
417
418
419
420#define IEEE_PACKET_RETRY_TIME (5*HZ)
421static int is_duplicate_packet(struct ieee80211_device *ieee,
422 struct ieee80211_hdr_4addr *header)
423{
424 u16 fc = le16_to_cpu(header->frame_ctl);
425 u16 sc = le16_to_cpu(header->seq_ctl);
426 u16 seq = WLAN_GET_SEQ_SEQ(sc);
427 u16 frag = WLAN_GET_SEQ_FRAG(sc);
428 u16 *last_seq, *last_frag;
429 unsigned long *last_time;
430 struct ieee80211_hdr_3addrqos *hdr_3addrqos;
431 struct ieee80211_hdr_4addrqos *hdr_4addrqos;
432 u8 tid;
433
434
435
436 if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
437 hdr_4addrqos = (struct ieee80211_hdr_4addrqos *)header;
438 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
439 tid = UP2AC(tid);
440 tid ++;
441 } else if(IEEE80211_QOS_HAS_SEQ(fc)) {
442 hdr_3addrqos = (struct ieee80211_hdr_3addrqos*)header;
443 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
444 tid = UP2AC(tid);
445 tid ++;
446 } else {
447 tid = 0;
448 }
449
450 switch (ieee->iw_mode) {
451 case IW_MODE_ADHOC:
452 {
453 struct list_head *p;
454 struct ieee_ibss_seq *entry = NULL;
455 u8 *mac = header->addr2;
456 int index = mac[5] % IEEE_IBSS_MAC_HASH_SIZE;
457
458
459 list_for_each(p, &ieee->ibss_mac_hash[index]) {
460 entry = list_entry(p, struct ieee_ibss_seq, list);
461 if (!memcmp(entry->mac, mac, ETH_ALEN))
462 break;
463 }
464
465 if (p == &ieee->ibss_mac_hash[index]) {
466 entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
467 if (!entry) {
468 printk(KERN_WARNING "Cannot malloc new mac entry\n");
469 return 0;
470 }
471 memcpy(entry->mac, mac, ETH_ALEN);
472 entry->seq_num[tid] = seq;
473 entry->frag_num[tid] = frag;
474 entry->packet_time[tid] = jiffies;
475 list_add(&entry->list, &ieee->ibss_mac_hash[index]);
476 return 0;
477 }
478 last_seq = &entry->seq_num[tid];
479 last_frag = &entry->frag_num[tid];
480 last_time = &entry->packet_time[tid];
481 break;
482 }
483
484 case IW_MODE_INFRA:
485 last_seq = &ieee->last_rxseq_num[tid];
486 last_frag = &ieee->last_rxfrag_num[tid];
487 last_time = &ieee->last_packet_time[tid];
488
489 break;
490 default:
491 return 0;
492 }
493
494
495
496
497 if ((*last_seq == seq) &&
498 time_after(*last_time + IEEE_PACKET_RETRY_TIME, jiffies)) {
499 if (*last_frag == frag){
500
501 goto drop;
502
503 }
504 if (*last_frag + 1 != frag)
505
506
507 goto drop;
508 } else
509 *last_seq = seq;
510
511 *last_frag = frag;
512 *last_time = jiffies;
513 return 0;
514
515drop:
516
517
518
519 return 1;
520}
521bool
522AddReorderEntry(
523 PRX_TS_RECORD pTS,
524 PRX_REORDER_ENTRY pReorderEntry
525 )
526{
527 struct list_head *pList = &pTS->RxPendingPktList;
528 while(pList->next != &pTS->RxPendingPktList)
529 {
530 if( SN_LESS(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
531 {
532 pList = pList->next;
533 }
534 else if( SN_EQUAL(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
535 {
536 return false;
537 }
538 else
539 {
540 break;
541 }
542 }
543 pReorderEntry->List.next = pList->next;
544 pReorderEntry->List.next->prev = &pReorderEntry->List;
545 pReorderEntry->List.prev = pList;
546 pList->next = &pReorderEntry->List;
547
548 return true;
549}
550
551void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_rxb** prxbIndicateArray,u8 index)
552{
553 u8 i = 0 , j=0;
554 u16 ethertype;
555
556
557 for(j = 0; j<index; j++)
558 {
559
560 struct ieee80211_rxb* prxb = prxbIndicateArray[j];
561 for(i = 0; i<prxb->nr_subframes; i++) {
562 struct sk_buff *sub_skb = prxb->subframes[i];
563
564
565 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
566 if (sub_skb->len >= 8 &&
567 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
568 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
569 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
570
571
572 skb_pull(sub_skb, SNAP_SIZE);
573 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
574 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
575 } else {
576 u16 len;
577
578 len = htons(sub_skb->len);
579 memcpy(skb_push(sub_skb, 2), &len, 2);
580 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
581 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
582 }
583
584
585
586
587 if (sub_skb) {
588
589 sub_skb->protocol = eth_type_trans(sub_skb, ieee->dev);
590 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
591 sub_skb->dev = ieee->dev;
592 sub_skb->ip_summed = CHECKSUM_NONE;
593
594 ieee->last_rx_ps_time = jiffies;
595
596 netif_rx(sub_skb);
597 }
598 }
599 kfree(prxb);
600 prxb = NULL;
601 }
602}
603
604
605void RxReorderIndicatePacket( struct ieee80211_device *ieee,
606 struct ieee80211_rxb* prxb,
607 PRX_TS_RECORD pTS,
608 u16 SeqNum)
609{
610 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
611 PRX_REORDER_ENTRY pReorderEntry = NULL;
612 struct ieee80211_rxb* prxbIndicateArray[REORDER_WIN_SIZE];
613 u8 WinSize = pHTInfo->RxReorderWinSize;
614 u16 WinEnd = (pTS->RxIndicateSeq + WinSize -1)%4096;
615 u8 index = 0;
616 bool bMatchWinStart = false, bPktInBuf = false;
617 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): Seq is %d,pTS->RxIndicateSeq is %d, WinSize is %d\n",__FUNCTION__,SeqNum,pTS->RxIndicateSeq,WinSize);
618
619 if(pTS->RxIndicateSeq == 0xffff) {
620 pTS->RxIndicateSeq = SeqNum;
621 }
622
623
624 if(SN_LESS(SeqNum, pTS->RxIndicateSeq)) {
625 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packet Drop! IndicateSeq: %d, NewSeq: %d\n",
626 pTS->RxIndicateSeq, SeqNum);
627 pHTInfo->RxReorderDropCounter++;
628 {
629 int i;
630 for(i =0; i < prxb->nr_subframes; i++) {
631 dev_kfree_skb(prxb->subframes[i]);
632 }
633 kfree(prxb);
634 prxb = NULL;
635 }
636 return;
637 }
638
639
640
641
642
643
644 if(SN_EQUAL(SeqNum, pTS->RxIndicateSeq)) {
645 pTS->RxIndicateSeq = (pTS->RxIndicateSeq + 1) % 4096;
646 bMatchWinStart = true;
647 } else if(SN_LESS(WinEnd, SeqNum)) {
648 if(SeqNum >= (WinSize - 1)) {
649 pTS->RxIndicateSeq = SeqNum + 1 -WinSize;
650 } else {
651 pTS->RxIndicateSeq = 4095 - (WinSize - (SeqNum +1)) + 1;
652 }
653 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Window Shift! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
654 }
655
656
657
658
659
660
661
662
663
664
665 if(bMatchWinStart) {
666
667 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packets indication!! IndicateSeq: %d, NewSeq: %d\n",\
668 pTS->RxIndicateSeq, SeqNum);
669 prxbIndicateArray[0] = prxb;
670
671 index = 1;
672 } else {
673
674
675 if(!list_empty(&ieee->RxReorder_Unused_List)) {
676 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(ieee->RxReorder_Unused_List.next,RX_REORDER_ENTRY,List);
677 list_del_init(&pReorderEntry->List);
678
679
680 pReorderEntry->SeqNum = SeqNum;
681 pReorderEntry->prxb = prxb;
682
683
684 if(!AddReorderEntry(pTS, pReorderEntry)) {
685 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n",
686 __FUNCTION__, pTS->RxIndicateSeq, SeqNum);
687 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
688 {
689 int i;
690 for(i =0; i < prxb->nr_subframes; i++) {
691 dev_kfree_skb(prxb->subframes[i]);
692 }
693 kfree(prxb);
694 prxb = NULL;
695 }
696 } else {
697 IEEE80211_DEBUG(IEEE80211_DL_REORDER,
698 "Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
699 }
700 }
701 else {
702
703
704
705
706
707 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): There is no reorder entry!! Packet is dropped!!\n");
708 {
709 int i;
710 for(i =0; i < prxb->nr_subframes; i++) {
711 dev_kfree_skb(prxb->subframes[i]);
712 }
713 kfree(prxb);
714 prxb = NULL;
715 }
716 }
717 }
718
719
720 while(!list_empty(&pTS->RxPendingPktList)) {
721 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): start RREORDER indicate\n",__FUNCTION__);
722 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(pTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
723 if( SN_LESS(pReorderEntry->SeqNum, pTS->RxIndicateSeq) ||
724 SN_EQUAL(pReorderEntry->SeqNum, pTS->RxIndicateSeq))
725 {
726
727 if(index >= REORDER_WIN_SIZE) {
728 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n");
729 bPktInBuf = true;
730 break;
731 }
732
733 list_del_init(&pReorderEntry->List);
734
735 if(SN_EQUAL(pReorderEntry->SeqNum, pTS->RxIndicateSeq))
736 pTS->RxIndicateSeq = (pTS->RxIndicateSeq + 1) % 4096;
737
738 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packets indication!! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
739 prxbIndicateArray[index] = pReorderEntry->prxb;
740
741 index++;
742
743 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
744 } else {
745 bPktInBuf = true;
746 break;
747 }
748 }
749
750
751 if(index>0) {
752
753
754 pTS->RxTimeoutIndicateSeq = 0xffff;
755
756
757 if(index>REORDER_WIN_SIZE){
758 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorer buffer full!! \n");
759 return;
760 }
761 ieee80211_indicate_packets(ieee, prxbIndicateArray, index);
762 }
763
764 if(bPktInBuf && pTS->RxTimeoutIndicateSeq==0xffff) {
765
766 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): SET rx timeout timer\n", __FUNCTION__);
767 pTS->RxTimeoutIndicateSeq = pTS->RxIndicateSeq;
768 if(timer_pending(&pTS->RxPktPendingTimer))
769 del_timer_sync(&pTS->RxPktPendingTimer);
770 pTS->RxPktPendingTimer.expires = jiffies + MSECS(pHTInfo->RxReorderPendingTime);
771 add_timer(&pTS->RxPktPendingTimer);
772 }
773}
774
775u8 parse_subframe(struct sk_buff *skb,
776 struct ieee80211_rx_stats *rx_stats,
777 struct ieee80211_rxb *rxb,u8* src,u8* dst)
778{
779 struct ieee80211_hdr_3addr *hdr = (struct ieee80211_hdr_3addr* )skb->data;
780 u16 fc = le16_to_cpu(hdr->frame_ctl);
781
782 u16 LLCOffset= sizeof(struct ieee80211_hdr_3addr);
783 u16 ChkLength;
784 bool bIsAggregateFrame = false;
785 u16 nSubframe_Length;
786 u8 nPadding_Length = 0;
787 u16 SeqNum=0;
788
789 struct sk_buff *sub_skb;
790 u8 *data_ptr;
791
792 SeqNum = WLAN_GET_SEQ_SEQ(le16_to_cpu(hdr->seq_ctl));
793
794 if((IEEE80211_QOS_HAS_SEQ(fc))&&\
795 (((frameqos *)(skb->data + IEEE80211_3ADDR_LEN))->field.reserved)) {
796 bIsAggregateFrame = true;
797 }
798
799 if(IEEE80211_QOS_HAS_SEQ(fc)) {
800 LLCOffset += 2;
801 }
802
803 if(rx_stats->bContainHTC) {
804 LLCOffset += sHTCLng;
805 }
806
807
808 ChkLength = LLCOffset;
809
810 if( skb->len <= ChkLength ) {
811 return 0;
812 }
813
814 skb_pull(skb, LLCOffset);
815
816 if(!bIsAggregateFrame) {
817 rxb->nr_subframes = 1;
818#ifdef JOHN_NOCPY
819 rxb->subframes[0] = skb;
820#else
821 rxb->subframes[0] = skb_copy(skb, GFP_ATOMIC);
822#endif
823
824 memcpy(rxb->src,src,ETH_ALEN);
825 memcpy(rxb->dst,dst,ETH_ALEN);
826
827 return 1;
828 } else {
829 rxb->nr_subframes = 0;
830 memcpy(rxb->src,src,ETH_ALEN);
831 memcpy(rxb->dst,dst,ETH_ALEN);
832 while(skb->len > ETHERNET_HEADER_SIZE) {
833
834 nSubframe_Length = *((u16*)(skb->data + 12));
835
836 nSubframe_Length = (nSubframe_Length>>8) + (nSubframe_Length<<8);
837
838 if(skb->len<(ETHERNET_HEADER_SIZE + nSubframe_Length)) {
839 printk("%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
840 __FUNCTION__,rxb->nr_subframes);
841 printk("%s: A-MSDU parse error!! Subframe Length: %d\n",__FUNCTION__, nSubframe_Length);
842 printk("nRemain_Length is %d and nSubframe_Length is : %d\n",skb->len,nSubframe_Length);
843 printk("The Packet SeqNum is %d\n",SeqNum);
844 return 0;
845 }
846
847
848 skb_pull(skb, ETHERNET_HEADER_SIZE);
849
850#ifdef JOHN_NOCPY
851 sub_skb = skb_clone(skb, GFP_ATOMIC);
852 sub_skb->len = nSubframe_Length;
853 sub_skb->tail = sub_skb->data + nSubframe_Length;
854#else
855
856 sub_skb = dev_alloc_skb(nSubframe_Length + 12);
857 skb_reserve(sub_skb, 12);
858 data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length);
859 memcpy(data_ptr,skb->data,nSubframe_Length);
860#endif
861 rxb->subframes[rxb->nr_subframes++] = sub_skb;
862 if(rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
863 IEEE80211_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
864 break;
865 }
866 skb_pull(skb,nSubframe_Length);
867
868 if(skb->len != 0) {
869 nPadding_Length = 4 - ((nSubframe_Length + ETHERNET_HEADER_SIZE) % 4);
870 if(nPadding_Length == 4) {
871 nPadding_Length = 0;
872 }
873
874 if(skb->len < nPadding_Length) {
875 return 0;
876 }
877
878 skb_pull(skb,nPadding_Length);
879 }
880 }
881#ifdef JOHN_NOCPY
882 dev_kfree_skb(skb);
883#endif
884
885
886
887 return rxb->nr_subframes;
888 }
889}
890
891
892
893
894int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
895 struct ieee80211_rx_stats *rx_stats)
896{
897 struct net_device *dev = ieee->dev;
898 struct ieee80211_hdr_4addr *hdr;
899
900
901 size_t hdrlen;
902 u16 fc, type, stype, sc;
903 struct net_device_stats *stats;
904 unsigned int frag;
905 u8 *payload;
906 u16 ethertype;
907
908 u8 TID = 0;
909 u16 SeqNum = 0;
910 PRX_TS_RECORD pTS = NULL;
911
912
913#ifdef NOT_YET
914 struct net_device *wds = NULL;
915 struct sk_buff *skb2 = NULL;
916 struct net_device *wds = NULL;
917 int frame_authorized = 0;
918 int from_assoc_ap = 0;
919 void *sta = NULL;
920#endif
921
922 u8 dst[ETH_ALEN];
923 u8 src[ETH_ALEN];
924 u8 bssid[ETH_ALEN];
925 struct ieee80211_crypt_data *crypt = NULL;
926 int keyidx = 0;
927
928 int i;
929 struct ieee80211_rxb* rxb = NULL;
930
931 hdr = (struct ieee80211_hdr_4addr *)skb->data;
932 stats = &ieee->stats;
933
934 if (skb->len < 10) {
935 printk(KERN_INFO "%s: SKB length < 10\n",
936 dev->name);
937 goto rx_dropped;
938 }
939
940 fc = le16_to_cpu(hdr->frame_ctl);
941 type = WLAN_FC_GET_TYPE(fc);
942 stype = WLAN_FC_GET_STYPE(fc);
943 sc = le16_to_cpu(hdr->seq_ctl);
944
945 frag = WLAN_GET_SEQ_FRAG(sc);
946 hdrlen = ieee80211_get_hdrlen(fc);
947
948 if(HTCCheck(ieee, skb->data))
949 {
950 if(net_ratelimit())
951 printk("find HTCControl\n");
952 hdrlen += 4;
953 rx_stats->bContainHTC = 1;
954 }
955
956
957#ifdef NOT_YET
958#if WIRELESS_EXT > 15
959
960
961#ifdef IW_WIRELESS_SPY
962
963 if (iface->spy_data.spy_number > 0) {
964 struct iw_quality wstats;
965 wstats.level = rx_stats->rssi;
966 wstats.noise = rx_stats->noise;
967 wstats.updated = 6;
968
969 wireless_spy_update(dev, hdr->addr2, &wstats);
970 }
971#endif
972#endif
973 hostap_update_rx_stats(local->ap, hdr, rx_stats);
974#endif
975
976#if WIRELESS_EXT > 15
977 if (ieee->iw_mode == IW_MODE_MONITOR) {
978 ieee80211_monitor_rx(ieee, skb, rx_stats);
979 stats->rx_packets++;
980 stats->rx_bytes += skb->len;
981 return 1;
982 }
983#endif
984 if (ieee->host_decrypt) {
985 int idx = 0;
986 if (skb->len >= hdrlen + 3)
987 idx = skb->data[hdrlen + 3] >> 6;
988 crypt = ieee->crypt[idx];
989#ifdef NOT_YET
990 sta = NULL;
991
992
993
994
995
996
997
998
999 if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key)
1000 (void) hostap_handle_sta_crypto(local, hdr, &crypt,
1001 &sta);
1002#endif
1003
1004
1005
1006 if (crypt && (crypt->ops == NULL ||
1007 crypt->ops->decrypt_mpdu == NULL))
1008 crypt = NULL;
1009
1010 if (!crypt && (fc & IEEE80211_FCTL_WEP)) {
1011
1012
1013
1014
1015 IEEE80211_DEBUG_DROP("Decryption failed (not set)"
1016 " (SA=%pM)\n",
1017 hdr->addr2);
1018 ieee->ieee_stats.rx_discards_undecryptable++;
1019 goto rx_dropped;
1020 }
1021 }
1022
1023 if (skb->len < IEEE80211_DATA_HDR3_LEN)
1024 goto rx_dropped;
1025
1026
1027 if( (ieee->pHTInfo->bCurRxReorderEnable == false) || !ieee->current_network.qos_data.active|| !IsDataFrame(skb->data) || IsLegacyDataFrame(skb->data)){
1028 if (is_duplicate_packet(ieee, hdr))
1029 goto rx_dropped;
1030
1031 }
1032 else
1033 {
1034 PRX_TS_RECORD pRxTS = NULL;
1035
1036 if(GetTs(
1037 ieee,
1038 (PTS_COMMON_INFO*) &pRxTS,
1039 hdr->addr2,
1040 (u8)Frame_QoSTID((u8*)(skb->data)),
1041 RX_DIR,
1042 true))
1043 {
1044
1045
1046 if( (fc & (1<<11)) &&
1047 (frag == pRxTS->RxLastFragNum) &&
1048 (WLAN_GET_SEQ_SEQ(sc) == pRxTS->RxLastSeqNum) )
1049 {
1050 goto rx_dropped;
1051 }
1052 else
1053 {
1054 pRxTS->RxLastFragNum = frag;
1055 pRxTS->RxLastSeqNum = WLAN_GET_SEQ_SEQ(sc);
1056 }
1057 }
1058 else
1059 {
1060 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s(): No TS!! Skip the check!!\n",__FUNCTION__);
1061 goto rx_dropped;
1062 }
1063 }
1064 if (type == IEEE80211_FTYPE_MGMT) {
1065
1066
1067
1068 if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype))
1069 goto rx_dropped;
1070 else
1071 goto rx_exit;
1072 }
1073
1074
1075 switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
1076 case IEEE80211_FCTL_FROMDS:
1077 memcpy(dst, hdr->addr1, ETH_ALEN);
1078 memcpy(src, hdr->addr3, ETH_ALEN);
1079 memcpy(bssid, hdr->addr2, ETH_ALEN);
1080 break;
1081 case IEEE80211_FCTL_TODS:
1082 memcpy(dst, hdr->addr3, ETH_ALEN);
1083 memcpy(src, hdr->addr2, ETH_ALEN);
1084 memcpy(bssid, hdr->addr1, ETH_ALEN);
1085 break;
1086 case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
1087 if (skb->len < IEEE80211_DATA_HDR4_LEN)
1088 goto rx_dropped;
1089 memcpy(dst, hdr->addr3, ETH_ALEN);
1090 memcpy(src, hdr->addr4, ETH_ALEN);
1091 memcpy(bssid, ieee->current_network.bssid, ETH_ALEN);
1092 break;
1093 case 0:
1094 memcpy(dst, hdr->addr1, ETH_ALEN);
1095 memcpy(src, hdr->addr2, ETH_ALEN);
1096 memcpy(bssid, hdr->addr3, ETH_ALEN);
1097 break;
1098 }
1099
1100#ifdef NOT_YET
1101 if (hostap_rx_frame_wds(ieee, hdr, fc, &wds))
1102 goto rx_dropped;
1103 if (wds) {
1104 skb->dev = dev = wds;
1105 stats = hostap_get_stats(dev);
1106 }
1107
1108 if (ieee->iw_mode == IW_MODE_MASTER && !wds &&
1109 (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS &&
1110 ieee->stadev &&
1111 memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) {
1112
1113 skb->dev = dev = ieee->stadev;
1114 stats = hostap_get_stats(dev);
1115 from_assoc_ap = 1;
1116 }
1117
1118 if ((ieee->iw_mode == IW_MODE_MASTER ||
1119 ieee->iw_mode == IW_MODE_REPEAT) &&
1120 !from_assoc_ap) {
1121 switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats,
1122 wds != NULL)) {
1123 case AP_RX_CONTINUE_NOT_AUTHORIZED:
1124 frame_authorized = 0;
1125 break;
1126 case AP_RX_CONTINUE:
1127 frame_authorized = 1;
1128 break;
1129 case AP_RX_DROP:
1130 goto rx_dropped;
1131 case AP_RX_EXIT:
1132 goto rx_exit;
1133 }
1134 }
1135#endif
1136
1137
1138
1139 if (stype != IEEE80211_STYPE_DATA &&
1140 stype != IEEE80211_STYPE_DATA_CFACK &&
1141 stype != IEEE80211_STYPE_DATA_CFPOLL &&
1142 stype != IEEE80211_STYPE_DATA_CFACKPOLL&&
1143 stype != IEEE80211_STYPE_QOS_DATA
1144 ) {
1145 if (stype != IEEE80211_STYPE_NULLFUNC)
1146 IEEE80211_DEBUG_DROP(
1147 "RX: dropped data frame "
1148 "with no data (type=0x%02x, "
1149 "subtype=0x%02x, len=%d)\n",
1150 type, stype, skb->len);
1151 goto rx_dropped;
1152 }
1153 if (memcmp(bssid, ieee->current_network.bssid, ETH_ALEN))
1154 goto rx_dropped;
1155
1156
1157
1158 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1159 (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
1160 {
1161 printk("decrypt frame error\n");
1162 goto rx_dropped;
1163 }
1164
1165
1166 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1167
1168
1169
1170
1171 if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) {
1172 int flen;
1173 struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr);
1174 IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag);
1175
1176 if (!frag_skb) {
1177 IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG,
1178 "Rx cannot get skb from fragment "
1179 "cache (morefrag=%d seq=%u frag=%u)\n",
1180 (fc & IEEE80211_FCTL_MOREFRAGS) != 0,
1181 WLAN_GET_SEQ_SEQ(sc), frag);
1182 goto rx_dropped;
1183 }
1184 flen = skb->len;
1185 if (frag != 0)
1186 flen -= hdrlen;
1187
1188 if (frag_skb->tail + flen > frag_skb->end) {
1189 printk(KERN_WARNING "%s: host decrypted and "
1190 "reassembled frame did not fit skb\n",
1191 dev->name);
1192 ieee80211_frag_cache_invalidate(ieee, hdr);
1193 goto rx_dropped;
1194 }
1195
1196 if (frag == 0) {
1197
1198
1199 memcpy(skb_put(frag_skb, flen), skb->data, flen);
1200 } else {
1201
1202
1203 memcpy(skb_put(frag_skb, flen), skb->data + hdrlen,
1204 flen);
1205 }
1206 dev_kfree_skb_any(skb);
1207 skb = NULL;
1208
1209 if (fc & IEEE80211_FCTL_MOREFRAGS) {
1210
1211
1212
1213 goto rx_exit;
1214 }
1215
1216
1217
1218 skb = frag_skb;
1219 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1220 ieee80211_frag_cache_invalidate(ieee, hdr);
1221 }
1222
1223
1224
1225 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1226 ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
1227 {
1228 printk("==>decrypt msdu error\n");
1229 goto rx_dropped;
1230 }
1231
1232
1233 ieee->LinkDetectInfo.NumRecvDataInPeriod++;
1234 ieee->LinkDetectInfo.NumRxOkInPeriod++;
1235
1236 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1237 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) {
1238 if (
1239 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1240
1241#ifdef CONFIG_IEEE80211_DEBUG
1242
1243
1244 struct eapol *eap = (struct eapol *)(skb->data +
1245 24);
1246 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1247 eap_get_type(eap->type));
1248#endif
1249 } else {
1250 IEEE80211_DEBUG_DROP(
1251 "encryption configured, but RX "
1252 "frame not encrypted (SA=%pM)\n",
1253 hdr->addr2);
1254 goto rx_dropped;
1255 }
1256 }
1257
1258#ifdef CONFIG_IEEE80211_DEBUG
1259 if (crypt && !(fc & IEEE80211_FCTL_WEP) &&
1260 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1261 struct eapol *eap = (struct eapol *)(skb->data +
1262 24);
1263 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1264 eap_get_type(eap->type));
1265 }
1266#endif
1267
1268 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep &&
1269 !ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1270 IEEE80211_DEBUG_DROP(
1271 "dropped unencrypted RX data "
1272 "frame from %pM"
1273 " (drop_unencrypted=1)\n",
1274 hdr->addr2);
1275 goto rx_dropped;
1276 }
1277
1278
1279
1280
1281
1282
1283 if(ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
1284 && !is_multicast_ether_addr(hdr->addr1))
1285 {
1286 TID = Frame_QoSTID(skb->data);
1287 SeqNum = WLAN_GET_SEQ_SEQ(sc);
1288 GetTs(ieee,(PTS_COMMON_INFO*) &pTS,hdr->addr2,TID,RX_DIR,true);
1289 if(TID !=0 && TID !=3)
1290 {
1291 ieee->bis_any_nonbepkts = true;
1292 }
1293 }
1294
1295
1296 payload = skb->data + hdrlen;
1297
1298 rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
1299 if(rxb == NULL)
1300 {
1301 IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);
1302 goto rx_dropped;
1303 }
1304
1305
1306 if(parse_subframe(skb,rx_stats,rxb,src,dst) == 0) {
1307
1308 for(i =0; i < rxb->nr_subframes; i++) {
1309 dev_kfree_skb(rxb->subframes[i]);
1310 }
1311 kfree(rxb);
1312 rxb = NULL;
1313 goto rx_dropped;
1314 }
1315
1316
1317 if(ieee->pHTInfo->bCurRxReorderEnable == false ||pTS == NULL){
1318
1319 for(i = 0; i<rxb->nr_subframes; i++) {
1320 struct sk_buff *sub_skb = rxb->subframes[i];
1321
1322 if (sub_skb) {
1323
1324 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
1325 if (sub_skb->len >= 8 &&
1326 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
1327 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
1328 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
1329
1330
1331 skb_pull(sub_skb, SNAP_SIZE);
1332 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1333 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1334 } else {
1335 u16 len;
1336
1337 len = htons(sub_skb->len);
1338 memcpy(skb_push(sub_skb, 2), &len, 2);
1339 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1340 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1341 }
1342
1343 stats->rx_packets++;
1344 stats->rx_bytes += sub_skb->len;
1345 if(is_multicast_ether_addr(dst)) {
1346 stats->multicast++;
1347 }
1348
1349
1350
1351 sub_skb->protocol = eth_type_trans(sub_skb, dev);
1352 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
1353 sub_skb->dev = dev;
1354 sub_skb->ip_summed = CHECKSUM_NONE;
1355
1356 ieee->last_rx_ps_time = jiffies;
1357
1358 netif_rx(sub_skb);
1359 }
1360 }
1361 kfree(rxb);
1362 rxb = NULL;
1363
1364 }
1365 else
1366 {
1367 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): REORDER ENABLE AND PTS not NULL, and we will enter RxReorderIndicatePacket()\n",__FUNCTION__);
1368 RxReorderIndicatePacket(ieee, rxb, pTS, SeqNum);
1369 }
1370#ifndef JOHN_NOCPY
1371 dev_kfree_skb(skb);
1372#endif
1373
1374 rx_exit:
1375#ifdef NOT_YET
1376 if (sta)
1377 hostap_handle_sta_release(sta);
1378#endif
1379 return 1;
1380
1381 rx_dropped:
1382 kfree(rxb);
1383 rxb = NULL;
1384 stats->rx_dropped++;
1385
1386
1387
1388
1389 return 0;
1390}
1391
1392#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
1393
1394static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
1395
1396
1397
1398
1399
1400static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
1401 *info_element, int sub_type)
1402{
1403
1404 if (info_element->qui_subtype != sub_type)
1405 return -1;
1406 if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
1407 return -1;
1408 if (info_element->qui_type != QOS_OUI_TYPE)
1409 return -1;
1410 if (info_element->version != QOS_VERSION_1)
1411 return -1;
1412
1413 return 0;
1414}
1415
1416
1417
1418
1419
1420static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
1421 *element_param, struct ieee80211_info_element
1422 *info_element)
1423{
1424 int ret = 0;
1425 u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
1426
1427 if ((info_element == NULL) || (element_param == NULL))
1428 return -1;
1429
1430 if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
1431 memcpy(element_param->info_element.qui, info_element->data,
1432 info_element->len);
1433 element_param->info_element.elementID = info_element->id;
1434 element_param->info_element.length = info_element->len;
1435 } else
1436 ret = -1;
1437 if (ret == 0)
1438 ret = ieee80211_verify_qos_info(&element_param->info_element,
1439 QOS_OUI_PARAM_SUB_TYPE);
1440 return ret;
1441}
1442
1443
1444
1445
1446static int ieee80211_read_qos_info_element(struct
1447 ieee80211_qos_information_element
1448 *element_info, struct ieee80211_info_element
1449 *info_element)
1450{
1451 int ret = 0;
1452 u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
1453
1454 if (element_info == NULL)
1455 return -1;
1456 if (info_element == NULL)
1457 return -1;
1458
1459 if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
1460 memcpy(element_info->qui, info_element->data,
1461 info_element->len);
1462 element_info->elementID = info_element->id;
1463 element_info->length = info_element->len;
1464 } else
1465 ret = -1;
1466
1467 if (ret == 0)
1468 ret = ieee80211_verify_qos_info(element_info,
1469 QOS_OUI_INFO_SUB_TYPE);
1470 return ret;
1471}
1472
1473
1474
1475
1476
1477static int ieee80211_qos_convert_ac_to_parameters(struct
1478 ieee80211_qos_parameter_info
1479 *param_elm, struct
1480 ieee80211_qos_parameters
1481 *qos_param)
1482{
1483 int rc = 0;
1484 int i;
1485 struct ieee80211_qos_ac_parameter *ac_params;
1486 u8 aci;
1487
1488
1489
1490 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1491 ac_params = &(param_elm->ac_params_record[i]);
1492
1493 aci = (ac_params->aci_aifsn & 0x60) >> 5;
1494
1495 if(aci >= QOS_QUEUE_NUM)
1496 continue;
1497 qos_param->aifs[aci] = (ac_params->aci_aifsn) & 0x0f;
1498
1499
1500 qos_param->aifs[aci] = (qos_param->aifs[aci] < 2) ? 2:qos_param->aifs[aci];
1501
1502 qos_param->cw_min[aci] = ac_params->ecw_min_max & 0x0F;
1503
1504 qos_param->cw_max[aci] = (ac_params->ecw_min_max & 0xF0) >> 4;
1505
1506 qos_param->flag[aci] =
1507 (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
1508 qos_param->tx_op_limit[aci] = le16_to_cpu(ac_params->tx_op_limit);
1509 }
1510 return rc;
1511}
1512
1513
1514
1515
1516
1517
1518static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
1519 *info_element,
1520 struct ieee80211_network *network)
1521{
1522 int rc = 0;
1523 struct ieee80211_qos_parameters *qos_param = NULL;
1524 struct ieee80211_qos_information_element qos_info_element;
1525
1526 rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
1527
1528 if (rc == 0) {
1529 network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
1530 network->flags |= NETWORK_HAS_QOS_INFORMATION;
1531 } else {
1532 struct ieee80211_qos_parameter_info param_element;
1533
1534 rc = ieee80211_read_qos_param_element(¶m_element,
1535 info_element);
1536 if (rc == 0) {
1537 qos_param = &(network->qos_data.parameters);
1538 ieee80211_qos_convert_ac_to_parameters(¶m_element,
1539 qos_param);
1540 network->flags |= NETWORK_HAS_QOS_PARAMETERS;
1541 network->qos_data.param_count =
1542 param_element.info_element.ac_info & 0x0F;
1543 }
1544 }
1545
1546 if (rc == 0) {
1547 IEEE80211_DEBUG_QOS("QoS is supported\n");
1548 network->qos_data.supported = 1;
1549 }
1550 return rc;
1551}
1552
1553#ifdef CONFIG_IEEE80211_DEBUG
1554#define MFIE_STRING(x) case MFIE_TYPE_ ##x: return #x
1555
1556static const char *get_info_element_string(u16 id)
1557{
1558 switch (id) {
1559 MFIE_STRING(SSID);
1560 MFIE_STRING(RATES);
1561 MFIE_STRING(FH_SET);
1562 MFIE_STRING(DS_SET);
1563 MFIE_STRING(CF_SET);
1564 MFIE_STRING(TIM);
1565 MFIE_STRING(IBSS_SET);
1566 MFIE_STRING(COUNTRY);
1567 MFIE_STRING(HOP_PARAMS);
1568 MFIE_STRING(HOP_TABLE);
1569 MFIE_STRING(REQUEST);
1570 MFIE_STRING(CHALLENGE);
1571 MFIE_STRING(POWER_CONSTRAINT);
1572 MFIE_STRING(POWER_CAPABILITY);
1573 MFIE_STRING(TPC_REQUEST);
1574 MFIE_STRING(TPC_REPORT);
1575 MFIE_STRING(SUPP_CHANNELS);
1576 MFIE_STRING(CSA);
1577 MFIE_STRING(MEASURE_REQUEST);
1578 MFIE_STRING(MEASURE_REPORT);
1579 MFIE_STRING(QUIET);
1580 MFIE_STRING(IBSS_DFS);
1581
1582 MFIE_STRING(RSN);
1583 MFIE_STRING(RATES_EX);
1584 MFIE_STRING(GENERIC);
1585 MFIE_STRING(QOS_PARAMETER);
1586 default:
1587 return "UNKNOWN";
1588 }
1589}
1590#endif
1591
1592static inline void ieee80211_extract_country_ie(
1593 struct ieee80211_device *ieee,
1594 struct ieee80211_info_element *info_element,
1595 struct ieee80211_network *network,
1596 u8 * addr2
1597)
1598{
1599 if(IS_DOT11D_ENABLE(ieee))
1600 {
1601 if(info_element->len!= 0)
1602 {
1603 memcpy(network->CountryIeBuf, info_element->data, info_element->len);
1604 network->CountryIeLen = info_element->len;
1605
1606 if(!IS_COUNTRY_IE_VALID(ieee))
1607 {
1608 Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data);
1609 }
1610 }
1611
1612
1613
1614
1615
1616
1617 if(IS_EQUAL_CIE_SRC(ieee, addr2) )
1618 {
1619 UPDATE_CIE_WATCHDOG(ieee);
1620 }
1621 }
1622
1623}
1624
1625int ieee80211_parse_info_param(struct ieee80211_device *ieee,
1626 struct ieee80211_info_element *info_element,
1627 u16 length,
1628 struct ieee80211_network *network,
1629 struct ieee80211_rx_stats *stats)
1630{
1631 u8 i;
1632 short offset;
1633 u16 tmp_htcap_len=0;
1634 u16 tmp_htinfo_len=0;
1635 u16 ht_realtek_agg_len=0;
1636 u8 ht_realtek_agg_buf[MAX_IE_LEN];
1637
1638#ifdef CONFIG_IEEE80211_DEBUG
1639 char rates_str[64];
1640 char *p;
1641#endif
1642
1643 while (length >= sizeof(*info_element)) {
1644 if (sizeof(*info_element) + info_element->len > length) {
1645 IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
1646 "info_element->len + 2 > left : "
1647 "info_element->len+2=%zd left=%d, id=%d.\n",
1648 info_element->len +
1649 sizeof(*info_element),
1650 length, info_element->id);
1651
1652
1653
1654 break;
1655 }
1656
1657 switch (info_element->id) {
1658 case MFIE_TYPE_SSID:
1659 if (ieee80211_is_empty_essid(info_element->data,
1660 info_element->len)) {
1661 network->flags |= NETWORK_EMPTY_ESSID;
1662 break;
1663 }
1664
1665 network->ssid_len = min(info_element->len,
1666 (u8) IW_ESSID_MAX_SIZE);
1667 memcpy(network->ssid, info_element->data, network->ssid_len);
1668 if (network->ssid_len < IW_ESSID_MAX_SIZE)
1669 memset(network->ssid + network->ssid_len, 0,
1670 IW_ESSID_MAX_SIZE - network->ssid_len);
1671
1672 IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
1673 network->ssid, network->ssid_len);
1674 break;
1675
1676 case MFIE_TYPE_RATES:
1677#ifdef CONFIG_IEEE80211_DEBUG
1678 p = rates_str;
1679#endif
1680 network->rates_len = min(info_element->len,
1681 MAX_RATES_LENGTH);
1682 for (i = 0; i < network->rates_len; i++) {
1683 network->rates[i] = info_element->data[i];
1684#ifdef CONFIG_IEEE80211_DEBUG
1685 p += snprintf(p, sizeof(rates_str) -
1686 (p - rates_str), "%02X ",
1687 network->rates[i]);
1688#endif
1689 if (ieee80211_is_ofdm_rate
1690 (info_element->data[i])) {
1691 network->flags |= NETWORK_HAS_OFDM;
1692 if (info_element->data[i] &
1693 IEEE80211_BASIC_RATE_MASK)
1694 network->flags &=
1695 ~NETWORK_HAS_CCK;
1696 }
1697 }
1698
1699 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
1700 rates_str, network->rates_len);
1701 break;
1702
1703 case MFIE_TYPE_RATES_EX:
1704#ifdef CONFIG_IEEE80211_DEBUG
1705 p = rates_str;
1706#endif
1707 network->rates_ex_len = min(info_element->len,
1708 MAX_RATES_EX_LENGTH);
1709 for (i = 0; i < network->rates_ex_len; i++) {
1710 network->rates_ex[i] = info_element->data[i];
1711#ifdef CONFIG_IEEE80211_DEBUG
1712 p += snprintf(p, sizeof(rates_str) -
1713 (p - rates_str), "%02X ",
1714 network->rates[i]);
1715#endif
1716 if (ieee80211_is_ofdm_rate
1717 (info_element->data[i])) {
1718 network->flags |= NETWORK_HAS_OFDM;
1719 if (info_element->data[i] &
1720 IEEE80211_BASIC_RATE_MASK)
1721 network->flags &=
1722 ~NETWORK_HAS_CCK;
1723 }
1724 }
1725
1726 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
1727 rates_str, network->rates_ex_len);
1728 break;
1729
1730 case MFIE_TYPE_DS_SET:
1731 IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
1732 info_element->data[0]);
1733 network->channel = info_element->data[0];
1734 break;
1735
1736 case MFIE_TYPE_FH_SET:
1737 IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
1738 break;
1739
1740 case MFIE_TYPE_CF_SET:
1741 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
1742 break;
1743
1744 case MFIE_TYPE_TIM:
1745 if(info_element->len < 4)
1746 break;
1747
1748 network->tim.tim_count = info_element->data[0];
1749 network->tim.tim_period = info_element->data[1];
1750
1751 network->dtim_period = info_element->data[1];
1752 if(ieee->state != IEEE80211_LINKED)
1753 break;
1754
1755 network->last_dtim_sta_time[0] = stats->mac_time[0];
1756 network->last_dtim_sta_time[1] = stats->mac_time[1];
1757
1758 network->dtim_data = IEEE80211_DTIM_VALID;
1759
1760 if(info_element->data[0] != 0)
1761 break;
1762
1763 if(info_element->data[2] & 1)
1764 network->dtim_data |= IEEE80211_DTIM_MBCAST;
1765
1766 offset = (info_element->data[2] >> 1)*2;
1767
1768
1769
1770 if(ieee->assoc_id < 8*offset ||
1771 ieee->assoc_id > 8*(offset + info_element->len -3))
1772
1773 break;
1774
1775 offset = (ieee->assoc_id / 8) - offset;
1776
1777 if(info_element->data[3+offset] & (1<<(ieee->assoc_id%8)))
1778 network->dtim_data |= IEEE80211_DTIM_UCAST;
1779
1780
1781 break;
1782
1783 case MFIE_TYPE_ERP:
1784 network->erp_value = info_element->data[0];
1785 network->flags |= NETWORK_HAS_ERP_VALUE;
1786 IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
1787 network->erp_value);
1788 break;
1789 case MFIE_TYPE_IBSS_SET:
1790 network->atim_window = info_element->data[0];
1791 IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
1792 network->atim_window);
1793 break;
1794
1795 case MFIE_TYPE_CHALLENGE:
1796 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
1797 break;
1798
1799 case MFIE_TYPE_GENERIC:
1800 IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
1801 info_element->len);
1802 if (!ieee80211_parse_qos_info_param_IE(info_element,
1803 network))
1804 break;
1805
1806 if (info_element->len >= 4 &&
1807 info_element->data[0] == 0x00 &&
1808 info_element->data[1] == 0x50 &&
1809 info_element->data[2] == 0xf2 &&
1810 info_element->data[3] == 0x01) {
1811 network->wpa_ie_len = min(info_element->len + 2,
1812 MAX_WPA_IE_LEN);
1813 memcpy(network->wpa_ie, info_element,
1814 network->wpa_ie_len);
1815 break;
1816 }
1817
1818#ifdef THOMAS_TURBO
1819 if (info_element->len == 7 &&
1820 info_element->data[0] == 0x00 &&
1821 info_element->data[1] == 0xe0 &&
1822 info_element->data[2] == 0x4c &&
1823 info_element->data[3] == 0x01 &&
1824 info_element->data[4] == 0x02) {
1825 network->Turbo_Enable = 1;
1826 }
1827#endif
1828
1829
1830 if(tmp_htcap_len == 0){
1831 if(info_element->len >= 4 &&
1832 info_element->data[0] == 0x00 &&
1833 info_element->data[1] == 0x90 &&
1834 info_element->data[2] == 0x4c &&
1835 info_element->data[3] == 0x033){
1836
1837 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
1838 if(tmp_htcap_len != 0){
1839 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1840 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
1841 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
1842 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
1843 }
1844 }
1845 if(tmp_htcap_len != 0)
1846 network->bssht.bdSupportHT = true;
1847 else
1848 network->bssht.bdSupportHT = false;
1849 }
1850
1851
1852 if(tmp_htinfo_len == 0){
1853 if(info_element->len >= 4 &&
1854 info_element->data[0] == 0x00 &&
1855 info_element->data[1] == 0x90 &&
1856 info_element->data[2] == 0x4c &&
1857 info_element->data[3] == 0x034){
1858
1859 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
1860 if(tmp_htinfo_len != 0){
1861 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1862 if(tmp_htinfo_len){
1863 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
1864 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
1865 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
1866 }
1867
1868 }
1869
1870 }
1871 }
1872
1873 if(ieee->aggregation){
1874 if(network->bssht.bdSupportHT){
1875 if(info_element->len >= 4 &&
1876 info_element->data[0] == 0x00 &&
1877 info_element->data[1] == 0xe0 &&
1878 info_element->data[2] == 0x4c &&
1879 info_element->data[3] == 0x02){
1880
1881 ht_realtek_agg_len = min(info_element->len,(u8)MAX_IE_LEN);
1882 memcpy(ht_realtek_agg_buf,info_element->data,info_element->len);
1883
1884 }
1885 if(ht_realtek_agg_len >= 5){
1886 network->bssht.bdRT2RTAggregation = true;
1887
1888 if((ht_realtek_agg_buf[4] == 1) && (ht_realtek_agg_buf[5] & 0x02))
1889 network->bssht.bdRT2RTLongSlotTime = true;
1890 }
1891 }
1892
1893 }
1894
1895
1896 {
1897 if((info_element->len >= 3 &&
1898 info_element->data[0] == 0x00 &&
1899 info_element->data[1] == 0x05 &&
1900 info_element->data[2] == 0xb5) ||
1901 (info_element->len >= 3 &&
1902 info_element->data[0] == 0x00 &&
1903 info_element->data[1] == 0x0a &&
1904 info_element->data[2] == 0xf7) ||
1905 (info_element->len >= 3 &&
1906 info_element->data[0] == 0x00 &&
1907 info_element->data[1] == 0x10 &&
1908 info_element->data[2] == 0x18)){
1909
1910 network->broadcom_cap_exist = true;
1911
1912 }
1913 }
1914 if(info_element->len >= 3 &&
1915 info_element->data[0] == 0x00 &&
1916 info_element->data[1] == 0x0c &&
1917 info_element->data[2] == 0x43)
1918 {
1919 network->ralink_cap_exist = true;
1920 }
1921 else
1922 network->ralink_cap_exist = false;
1923
1924 if((info_element->len >= 3 &&
1925 info_element->data[0] == 0x00 &&
1926 info_element->data[1] == 0x03 &&
1927 info_element->data[2] == 0x7f) ||
1928 (info_element->len >= 3 &&
1929 info_element->data[0] == 0x00 &&
1930 info_element->data[1] == 0x13 &&
1931 info_element->data[2] == 0x74))
1932 {
1933 printk("========>%s(): athros AP is exist\n",__FUNCTION__);
1934 network->atheros_cap_exist = true;
1935 }
1936 else
1937 network->atheros_cap_exist = false;
1938
1939 if(info_element->len >= 3 &&
1940 info_element->data[0] == 0x00 &&
1941 info_element->data[1] == 0x40 &&
1942 info_element->data[2] == 0x96)
1943 {
1944 network->cisco_cap_exist = true;
1945 }
1946 else
1947 network->cisco_cap_exist = false;
1948
1949 if(info_element->len > 4 &&
1950 info_element->data[0] == 0x00 &&
1951 info_element->data[1] == 0x40 &&
1952 info_element->data[2] == 0x96 &&
1953 info_element->data[3] == 0x01)
1954 {
1955 if(info_element->len == 6)
1956 {
1957 memcpy(network->CcxRmState, &info_element[4], 2);
1958 if(network->CcxRmState[0] != 0)
1959 {
1960 network->bCcxRmEnable = true;
1961 }
1962 else
1963 network->bCcxRmEnable = false;
1964
1965
1966
1967 network->MBssidMask = network->CcxRmState[1] & 0x07;
1968 if(network->MBssidMask != 0)
1969 {
1970 network->bMBssidValid = true;
1971 network->MBssidMask = 0xff << (network->MBssidMask);
1972 cpMacAddr(network->MBssid, network->bssid);
1973 network->MBssid[5] &= network->MBssidMask;
1974 }
1975 else
1976 {
1977 network->bMBssidValid = false;
1978 }
1979 }
1980 else
1981 {
1982 network->bCcxRmEnable = false;
1983 }
1984 }
1985 if(info_element->len > 4 &&
1986 info_element->data[0] == 0x00 &&
1987 info_element->data[1] == 0x40 &&
1988 info_element->data[2] == 0x96 &&
1989 info_element->data[3] == 0x03)
1990 {
1991 if(info_element->len == 5)
1992 {
1993 network->bWithCcxVerNum = true;
1994 network->BssCcxVerNumber = info_element->data[4];
1995 }
1996 else
1997 {
1998 network->bWithCcxVerNum = false;
1999 network->BssCcxVerNumber = 0;
2000 }
2001 }
2002 break;
2003
2004 case MFIE_TYPE_RSN:
2005 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
2006 info_element->len);
2007 network->rsn_ie_len = min(info_element->len + 2,
2008 MAX_WPA_IE_LEN);
2009 memcpy(network->rsn_ie, info_element,
2010 network->rsn_ie_len);
2011 break;
2012
2013
2014 case MFIE_TYPE_HT_CAP:
2015 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_CAP: %d bytes\n",
2016 info_element->len);
2017 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
2018 if(tmp_htcap_len != 0){
2019 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
2020 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
2021 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
2022 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
2023
2024
2025
2026
2027 network->bssht.bdSupportHT = true;
2028 }
2029 else
2030 network->bssht.bdSupportHT = false;
2031 break;
2032
2033
2034 case MFIE_TYPE_HT_INFO:
2035 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_INFO: %d bytes\n",
2036 info_element->len);
2037 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
2038 if(tmp_htinfo_len){
2039 network->bssht.bdHTSpecVer = HT_SPEC_VER_IEEE;
2040 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
2041 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
2042 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
2043 }
2044 break;
2045
2046 case MFIE_TYPE_AIRONET:
2047 IEEE80211_DEBUG_SCAN("MFIE_TYPE_AIRONET: %d bytes\n",
2048 info_element->len);
2049 if(info_element->len >IE_CISCO_FLAG_POSITION)
2050 {
2051 network->bWithAironetIE = true;
2052
2053
2054
2055
2056 if( (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_MIC) ||
2057 (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_PK) )
2058 {
2059 network->bCkipSupported = true;
2060 }
2061 else
2062 {
2063 network->bCkipSupported = false;
2064 }
2065 }
2066 else
2067 {
2068 network->bWithAironetIE = false;
2069 network->bCkipSupported = false;
2070 }
2071 break;
2072 case MFIE_TYPE_QOS_PARAMETER:
2073 printk(KERN_ERR
2074 "QoS Error need to parse QOS_PARAMETER IE\n");
2075 break;
2076
2077 case MFIE_TYPE_COUNTRY:
2078 IEEE80211_DEBUG_SCAN("MFIE_TYPE_COUNTRY: %d bytes\n",
2079 info_element->len);
2080
2081 ieee80211_extract_country_ie(ieee, info_element, network, network->bssid);
2082 break;
2083
2084 default:
2085 IEEE80211_DEBUG_MGMT
2086 ("Unsupported info element: %s (%d)\n",
2087 get_info_element_string(info_element->id),
2088 info_element->id);
2089 break;
2090 }
2091
2092 length -= sizeof(*info_element) + info_element->len;
2093 info_element =
2094 (struct ieee80211_info_element *)&info_element->
2095 data[info_element->len];
2096 }
2097
2098 if(!network->atheros_cap_exist && !network->broadcom_cap_exist &&
2099 !network->cisco_cap_exist && !network->ralink_cap_exist && !network->bssht.bdRT2RTAggregation)
2100 {
2101 network->unknown_cap_exist = true;
2102 }
2103 else
2104 {
2105 network->unknown_cap_exist = false;
2106 }
2107 return 0;
2108}
2109
2110static inline u8 ieee80211_SignalStrengthTranslate(
2111 u8 CurrSS
2112 )
2113{
2114 u8 RetSS;
2115
2116
2117 if(CurrSS >= 71 && CurrSS <= 100)
2118 {
2119 RetSS = 90 + ((CurrSS - 70) / 3);
2120 }
2121 else if(CurrSS >= 41 && CurrSS <= 70)
2122 {
2123 RetSS = 78 + ((CurrSS - 40) / 3);
2124 }
2125 else if(CurrSS >= 31 && CurrSS <= 40)
2126 {
2127 RetSS = 66 + (CurrSS - 30);
2128 }
2129 else if(CurrSS >= 21 && CurrSS <= 30)
2130 {
2131 RetSS = 54 + (CurrSS - 20);
2132 }
2133 else if(CurrSS >= 5 && CurrSS <= 20)
2134 {
2135 RetSS = 42 + (((CurrSS - 5) * 2) / 3);
2136 }
2137 else if(CurrSS == 4)
2138 {
2139 RetSS = 36;
2140 }
2141 else if(CurrSS == 3)
2142 {
2143 RetSS = 27;
2144 }
2145 else if(CurrSS == 2)
2146 {
2147 RetSS = 18;
2148 }
2149 else if(CurrSS == 1)
2150 {
2151 RetSS = 9;
2152 }
2153 else
2154 {
2155 RetSS = CurrSS;
2156 }
2157
2158
2159
2160
2161
2162
2163 return RetSS;
2164}
2165
2166long ieee80211_translate_todbm(u8 signal_strength_index )
2167{
2168 long signal_power;
2169
2170
2171 signal_power = (long)((signal_strength_index + 1) >> 1);
2172 signal_power -= 95;
2173
2174 return signal_power;
2175}
2176
2177static inline int ieee80211_network_init(
2178 struct ieee80211_device *ieee,
2179 struct ieee80211_probe_response *beacon,
2180 struct ieee80211_network *network,
2181 struct ieee80211_rx_stats *stats)
2182{
2183#ifdef CONFIG_IEEE80211_DEBUG
2184
2185
2186#endif
2187
2188 network->qos_data.active = 0;
2189 network->qos_data.supported = 0;
2190 network->qos_data.param_count = 0;
2191 network->qos_data.old_param_count = 0;
2192
2193
2194 memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
2195 network->capability = le16_to_cpu(beacon->capability);
2196 network->last_scanned = jiffies;
2197 network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
2198 network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
2199 network->beacon_interval = le32_to_cpu(beacon->beacon_interval);
2200
2201 network->listen_interval = 0x0A;
2202 network->rates_len = network->rates_ex_len = 0;
2203 network->last_associate = 0;
2204 network->ssid_len = 0;
2205 network->flags = 0;
2206 network->atim_window = 0;
2207 network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
2208 0x3 : 0x0;
2209 network->berp_info_valid = false;
2210 network->broadcom_cap_exist = false;
2211 network->ralink_cap_exist = false;
2212 network->atheros_cap_exist = false;
2213 network->cisco_cap_exist = false;
2214 network->unknown_cap_exist = false;
2215#ifdef THOMAS_TURBO
2216 network->Turbo_Enable = 0;
2217#endif
2218 network->CountryIeLen = 0;
2219 memset(network->CountryIeBuf, 0, MAX_IE_LEN);
2220
2221
2222 HTInitializeBssDesc(&network->bssht);
2223 if (stats->freq == IEEE80211_52GHZ_BAND) {
2224
2225 network->channel = stats->received_channel;
2226 } else
2227 network->flags |= NETWORK_HAS_CCK;
2228
2229 network->wpa_ie_len = 0;
2230 network->rsn_ie_len = 0;
2231
2232 if (ieee80211_parse_info_param
2233 (ieee,beacon->info_element, stats->len - sizeof(*beacon), network, stats))
2234 return 1;
2235
2236 network->mode = 0;
2237 if (stats->freq == IEEE80211_52GHZ_BAND)
2238 network->mode = IEEE_A;
2239 else {
2240 if (network->flags & NETWORK_HAS_OFDM)
2241 network->mode |= IEEE_G;
2242 if (network->flags & NETWORK_HAS_CCK)
2243 network->mode |= IEEE_B;
2244 }
2245
2246 if (network->mode == 0) {
2247 IEEE80211_DEBUG_SCAN("Filtered out '%s (%pM)' "
2248 "network.\n",
2249 escape_essid(network->ssid,
2250 network->ssid_len),
2251 network->bssid);
2252 return 1;
2253 }
2254
2255 if(network->bssht.bdSupportHT){
2256 if(network->mode == IEEE_A)
2257 network->mode = IEEE_N_5G;
2258 else if(network->mode & (IEEE_G | IEEE_B))
2259 network->mode = IEEE_N_24G;
2260 }
2261 if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
2262 network->flags |= NETWORK_EMPTY_ESSID;
2263
2264 stats->signal = 30 + (stats->SignalStrength * 70) / 100;
2265
2266 stats->noise = ieee80211_translate_todbm((u8)(100-stats->signal)) -25;
2267
2268 memcpy(&network->stats, stats, sizeof(network->stats));
2269
2270 return 0;
2271}
2272
2273static inline int is_same_network(struct ieee80211_network *src,
2274 struct ieee80211_network *dst, struct ieee80211_device* ieee)
2275{
2276
2277
2278
2279
2280 return
2281 (((src->ssid_len == dst->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2282 (src->channel == dst->channel) &&
2283 !memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
2284
2285 (!memcmp(src->ssid, dst->ssid, src->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2286 ((src->capability & WLAN_CAPABILITY_IBSS) ==
2287 (dst->capability & WLAN_CAPABILITY_IBSS)) &&
2288 ((src->capability & WLAN_CAPABILITY_BSS) ==
2289 (dst->capability & WLAN_CAPABILITY_BSS)));
2290}
2291
2292static inline void update_network(struct ieee80211_network *dst,
2293 struct ieee80211_network *src)
2294{
2295 int qos_active;
2296 u8 old_param;
2297
2298 memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
2299 dst->capability = src->capability;
2300 memcpy(dst->rates, src->rates, src->rates_len);
2301 dst->rates_len = src->rates_len;
2302 memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len);
2303 dst->rates_ex_len = src->rates_ex_len;
2304 if(src->ssid_len > 0)
2305 {
2306 memset(dst->ssid, 0, dst->ssid_len);
2307 dst->ssid_len = src->ssid_len;
2308 memcpy(dst->ssid, src->ssid, src->ssid_len);
2309 }
2310 dst->mode = src->mode;
2311 dst->flags = src->flags;
2312 dst->time_stamp[0] = src->time_stamp[0];
2313 dst->time_stamp[1] = src->time_stamp[1];
2314 if (src->flags & NETWORK_HAS_ERP_VALUE)
2315 {
2316 dst->erp_value = src->erp_value;
2317 dst->berp_info_valid = src->berp_info_valid = true;
2318 }
2319 dst->beacon_interval = src->beacon_interval;
2320 dst->listen_interval = src->listen_interval;
2321 dst->atim_window = src->atim_window;
2322 dst->dtim_period = src->dtim_period;
2323 dst->dtim_data = src->dtim_data;
2324 dst->last_dtim_sta_time[0] = src->last_dtim_sta_time[0];
2325 dst->last_dtim_sta_time[1] = src->last_dtim_sta_time[1];
2326 memcpy(&dst->tim, &src->tim, sizeof(struct ieee80211_tim_parameters));
2327
2328 dst->bssht.bdSupportHT = src->bssht.bdSupportHT;
2329 dst->bssht.bdRT2RTAggregation = src->bssht.bdRT2RTAggregation;
2330 dst->bssht.bdHTCapLen= src->bssht.bdHTCapLen;
2331 memcpy(dst->bssht.bdHTCapBuf,src->bssht.bdHTCapBuf,src->bssht.bdHTCapLen);
2332 dst->bssht.bdHTInfoLen= src->bssht.bdHTInfoLen;
2333 memcpy(dst->bssht.bdHTInfoBuf,src->bssht.bdHTInfoBuf,src->bssht.bdHTInfoLen);
2334 dst->bssht.bdHTSpecVer = src->bssht.bdHTSpecVer;
2335 dst->bssht.bdRT2RTLongSlotTime = src->bssht.bdRT2RTLongSlotTime;
2336 dst->broadcom_cap_exist = src->broadcom_cap_exist;
2337 dst->ralink_cap_exist = src->ralink_cap_exist;
2338 dst->atheros_cap_exist = src->atheros_cap_exist;
2339 dst->cisco_cap_exist = src->cisco_cap_exist;
2340 dst->unknown_cap_exist = src->unknown_cap_exist;
2341 memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
2342 dst->wpa_ie_len = src->wpa_ie_len;
2343 memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len);
2344 dst->rsn_ie_len = src->rsn_ie_len;
2345
2346 dst->last_scanned = jiffies;
2347
2348
2349 qos_active = dst->qos_data.active;
2350
2351 old_param = dst->qos_data.param_count;
2352 if(dst->flags & NETWORK_HAS_QOS_MASK)
2353 memcpy(&dst->qos_data, &src->qos_data,
2354 sizeof(struct ieee80211_qos_data));
2355 else {
2356 dst->qos_data.supported = src->qos_data.supported;
2357 dst->qos_data.param_count = src->qos_data.param_count;
2358 }
2359
2360 if(dst->qos_data.supported == 1) {
2361 dst->QoS_Enable = 1;
2362 if(dst->ssid_len)
2363 IEEE80211_DEBUG_QOS
2364 ("QoS the network %s is QoS supported\n",
2365 dst->ssid);
2366 else
2367 IEEE80211_DEBUG_QOS
2368 ("QoS the network is QoS supported\n");
2369 }
2370 dst->qos_data.active = qos_active;
2371 dst->qos_data.old_param_count = old_param;
2372
2373
2374 dst->wmm_info = src->wmm_info;
2375 if(src->wmm_param[0].ac_aci_acm_aifsn|| \
2376 src->wmm_param[1].ac_aci_acm_aifsn|| \
2377 src->wmm_param[2].ac_aci_acm_aifsn|| \
2378 src->wmm_param[3].ac_aci_acm_aifsn) {
2379 memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN);
2380 }
2381
2382#ifdef THOMAS_TURBO
2383 dst->Turbo_Enable = src->Turbo_Enable;
2384#endif
2385
2386 dst->CountryIeLen = src->CountryIeLen;
2387 memcpy(dst->CountryIeBuf, src->CountryIeBuf, src->CountryIeLen);
2388
2389
2390 dst->bWithAironetIE = src->bWithAironetIE;
2391 dst->bCkipSupported = src->bCkipSupported;
2392 memcpy(dst->CcxRmState,src->CcxRmState,2);
2393 dst->bCcxRmEnable = src->bCcxRmEnable;
2394 dst->MBssidMask = src->MBssidMask;
2395 dst->bMBssidValid = src->bMBssidValid;
2396 memcpy(dst->MBssid,src->MBssid,6);
2397 dst->bWithCcxVerNum = src->bWithCcxVerNum;
2398 dst->BssCcxVerNumber = src->BssCcxVerNumber;
2399
2400}
2401
2402static inline int is_beacon(__le16 fc)
2403{
2404 return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
2405}
2406
2407static inline void ieee80211_process_probe_response(
2408 struct ieee80211_device *ieee,
2409 struct ieee80211_probe_response *beacon,
2410 struct ieee80211_rx_stats *stats)
2411{
2412 struct ieee80211_network network;
2413 struct ieee80211_network *target;
2414 struct ieee80211_network *oldest = NULL;
2415#ifdef CONFIG_IEEE80211_DEBUG
2416 struct ieee80211_info_element *info_element = &beacon->info_element[0];
2417#endif
2418 unsigned long flags;
2419 short renew;
2420
2421
2422 memset(&network, 0, sizeof(struct ieee80211_network));
2423 IEEE80211_DEBUG_SCAN(
2424 "'%s' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
2425 escape_essid(info_element->data, info_element->len),
2426 beacon->header.addr3,
2427 (beacon->capability & (1<<0xf)) ? '1' : '0',
2428 (beacon->capability & (1<<0xe)) ? '1' : '0',
2429 (beacon->capability & (1<<0xd)) ? '1' : '0',
2430 (beacon->capability & (1<<0xc)) ? '1' : '0',
2431 (beacon->capability & (1<<0xb)) ? '1' : '0',
2432 (beacon->capability & (1<<0xa)) ? '1' : '0',
2433 (beacon->capability & (1<<0x9)) ? '1' : '0',
2434 (beacon->capability & (1<<0x8)) ? '1' : '0',
2435 (beacon->capability & (1<<0x7)) ? '1' : '0',
2436 (beacon->capability & (1<<0x6)) ? '1' : '0',
2437 (beacon->capability & (1<<0x5)) ? '1' : '0',
2438 (beacon->capability & (1<<0x4)) ? '1' : '0',
2439 (beacon->capability & (1<<0x3)) ? '1' : '0',
2440 (beacon->capability & (1<<0x2)) ? '1' : '0',
2441 (beacon->capability & (1<<0x1)) ? '1' : '0',
2442 (beacon->capability & (1<<0x0)) ? '1' : '0');
2443
2444 if (ieee80211_network_init(ieee, beacon, &network, stats)) {
2445 IEEE80211_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n",
2446 escape_essid(info_element->data,
2447 info_element->len),
2448 beacon->header.addr3,
2449 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2450 IEEE80211_STYPE_PROBE_RESP ?
2451 "PROBE RESPONSE" : "BEACON");
2452 return;
2453 }
2454
2455
2456
2457
2458
2459
2460
2461
2462 if( !IsLegalChannel(ieee, network.channel) )
2463 return;
2464 if(ieee->bGlobalDomain)
2465 {
2466 if (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_PROBE_RESP)
2467 {
2468
2469 if(IS_COUNTRY_IE_VALID(ieee) )
2470 {
2471 if( !IsLegalChannel(ieee, network.channel) )
2472 {
2473 printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network.channel);
2474 return;
2475 }
2476 }
2477
2478 else
2479 {
2480
2481 if(network.channel > 11)
2482 {
2483 printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network.channel);
2484 return;
2485 }
2486 }
2487 }
2488 else
2489 {
2490
2491 if(IS_COUNTRY_IE_VALID(ieee) )
2492 {
2493 if( !IsLegalChannel(ieee, network.channel) )
2494 {
2495 printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n",network.channel);
2496 return;
2497 }
2498 }
2499
2500 else
2501 {
2502
2503 if(network.channel > 14)
2504 {
2505 printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n",network.channel);
2506 return;
2507 }
2508 }
2509 }
2510 }
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522 spin_lock_irqsave(&ieee->lock, flags);
2523
2524 if(is_same_network(&ieee->current_network, &network, ieee)) {
2525 update_network(&ieee->current_network, &network);
2526 if((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
2527 && ieee->current_network.berp_info_valid){
2528 if(ieee->current_network.erp_value& ERP_UseProtection)
2529 ieee->current_network.buseprotection = true;
2530 else
2531 ieee->current_network.buseprotection = false;
2532 }
2533 if(is_beacon(beacon->header.frame_ctl))
2534 {
2535 if(ieee->state == IEEE80211_LINKED)
2536 ieee->LinkDetectInfo.NumRecvBcnInPeriod++;
2537 }
2538 else
2539 network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & ieee->current_network.flags);
2540 }
2541
2542 list_for_each_entry(target, &ieee->network_list, list) {
2543 if (is_same_network(target, &network, ieee))
2544 break;
2545 if ((oldest == NULL) ||
2546 (target->last_scanned < oldest->last_scanned))
2547 oldest = target;
2548 }
2549
2550
2551
2552 if (&target->list == &ieee->network_list) {
2553 if (list_empty(&ieee->network_free_list)) {
2554
2555 list_del(&oldest->list);
2556 target = oldest;
2557 IEEE80211_DEBUG_SCAN("Expired '%s' (%pM) from "
2558 "network list.\n",
2559 escape_essid(target->ssid,
2560 target->ssid_len),
2561 target->bssid);
2562 } else {
2563
2564 target = list_entry(ieee->network_free_list.next,
2565 struct ieee80211_network, list);
2566 list_del(ieee->network_free_list.next);
2567 }
2568
2569
2570#ifdef CONFIG_IEEE80211_DEBUG
2571 IEEE80211_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n",
2572 escape_essid(network.ssid,
2573 network.ssid_len),
2574 network.bssid,
2575 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2576 IEEE80211_STYPE_PROBE_RESP ?
2577 "PROBE RESPONSE" : "BEACON");
2578#endif
2579 memcpy(target, &network, sizeof(*target));
2580 list_add_tail(&target->list, &ieee->network_list);
2581 if(ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE)
2582 ieee80211_softmac_new_net(ieee,&network);
2583 } else {
2584 IEEE80211_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n",
2585 escape_essid(target->ssid,
2586 target->ssid_len),
2587 target->bssid,
2588 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2589 IEEE80211_STYPE_PROBE_RESP ?
2590 "PROBE RESPONSE" : "BEACON");
2591
2592
2593
2594
2595
2596 renew = !time_after(target->last_scanned + ieee->scan_age, jiffies);
2597
2598 if(is_beacon(beacon->header.frame_ctl) == 0)
2599 network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & target->flags);
2600
2601
2602 if(((network.flags & NETWORK_EMPTY_ESSID) == NETWORK_EMPTY_ESSID) \
2603 && (((network.ssid_len > 0) && (strncmp(target->ssid, network.ssid, network.ssid_len)))\
2604 ||((ieee->current_network.ssid_len == network.ssid_len)&&(strncmp(ieee->current_network.ssid, network.ssid, network.ssid_len) == 0)&&(ieee->state == IEEE80211_NOLINK))))
2605 renew = 1;
2606
2607
2608 update_network(target, &network);
2609 if(renew && (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE))
2610 ieee80211_softmac_new_net(ieee,&network);
2611 }
2612
2613 spin_unlock_irqrestore(&ieee->lock, flags);
2614 if (is_beacon(beacon->header.frame_ctl)&&is_same_network(&ieee->current_network, &network, ieee)&&\
2615 (ieee->state == IEEE80211_LINKED)) {
2616 if(ieee->handle_beacon != NULL) {
2617 ieee->handle_beacon(ieee->dev,beacon,&ieee->current_network);
2618 }
2619 }
2620}
2621
2622void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2623 struct ieee80211_hdr_4addr *header,
2624 struct ieee80211_rx_stats *stats)
2625{
2626 switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
2627
2628 case IEEE80211_STYPE_BEACON:
2629 IEEE80211_DEBUG_MGMT("received BEACON (%d)\n",
2630 WLAN_FC_GET_STYPE(header->frame_ctl));
2631 IEEE80211_DEBUG_SCAN("Beacon\n");
2632 ieee80211_process_probe_response(
2633 ieee, (struct ieee80211_probe_response *)header, stats);
2634 break;
2635
2636 case IEEE80211_STYPE_PROBE_RESP:
2637 IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n",
2638 WLAN_FC_GET_STYPE(header->frame_ctl));
2639 IEEE80211_DEBUG_SCAN("Probe response\n");
2640 ieee80211_process_probe_response(
2641 ieee, (struct ieee80211_probe_response *)header, stats);
2642 break;
2643
2644 }
2645}
2646
2647EXPORT_SYMBOL(ieee80211_rx_mgt);
2648EXPORT_SYMBOL(ieee80211_rx);
2649
