1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
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 list_for_each(p, &ieee->ibss_mac_hash[index]) {
459 entry = list_entry(p, struct ieee_ibss_seq, list);
460 if (!memcmp(entry->mac, mac, ETH_ALEN))
461 break;
462 }
463
464 if (p == &ieee->ibss_mac_hash[index]) {
465 entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
466 if (!entry) {
467 printk(KERN_WARNING "Cannot malloc new mac entry\n");
468 return 0;
469 }
470 memcpy(entry->mac, mac, ETH_ALEN);
471 entry->seq_num[tid] = seq;
472 entry->frag_num[tid] = frag;
473 entry->packet_time[tid] = jiffies;
474 list_add(&entry->list, &ieee->ibss_mac_hash[index]);
475 return 0;
476 }
477 last_seq = &entry->seq_num[tid];
478 last_frag = &entry->frag_num[tid];
479 last_time = &entry->packet_time[tid];
480 break;
481 }
482
483 case IW_MODE_INFRA:
484 last_seq = &ieee->last_rxseq_num[tid];
485 last_frag = &ieee->last_rxfrag_num[tid];
486 last_time = &ieee->last_packet_time[tid];
487
488 break;
489 default:
490 return 0;
491 }
492
493
494
495
496 if ((*last_seq == seq) &&
497 time_after(*last_time + IEEE_PACKET_RETRY_TIME, jiffies)) {
498 if (*last_frag == frag){
499
500 goto drop;
501
502 }
503 if (*last_frag + 1 != frag)
504
505
506 goto drop;
507 } else
508 *last_seq = seq;
509
510 *last_frag = frag;
511 *last_time = jiffies;
512 return 0;
513
514drop:
515
516
517
518 return 1;
519}
520bool
521AddReorderEntry(
522 PRX_TS_RECORD pTS,
523 PRX_REORDER_ENTRY pReorderEntry
524 )
525{
526 struct list_head *pList = &pTS->RxPendingPktList;
527 while(pList->next != &pTS->RxPendingPktList)
528 {
529 if( SN_LESS(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
530 {
531 pList = pList->next;
532 }
533 else if( SN_EQUAL(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
534 {
535 return false;
536 }
537 else
538 {
539 break;
540 }
541 }
542 pReorderEntry->List.next = pList->next;
543 pReorderEntry->List.next->prev = &pReorderEntry->List;
544 pReorderEntry->List.prev = pList;
545 pList->next = &pReorderEntry->List;
546
547 return true;
548}
549
550void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_rxb **prxbIndicateArray,u8 index)
551{
552 u8 i = 0 , j=0;
553 u16 ethertype;
554
555
556 for(j = 0; j<index; j++)
557 {
558
559 struct ieee80211_rxb *prxb = prxbIndicateArray[j];
560 for(i = 0; i<prxb->nr_subframes; i++) {
561 struct sk_buff *sub_skb = prxb->subframes[i];
562
563
564 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
565 if (sub_skb->len >= 8 &&
566 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
567 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
568 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
569
570
571 skb_pull(sub_skb, SNAP_SIZE);
572 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
573 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
574 } else {
575 u16 len;
576
577 len = htons(sub_skb->len);
578 memcpy(skb_push(sub_skb, 2), &len, 2);
579 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
580 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
581 }
582
583
584
585
586 if (sub_skb) {
587
588 sub_skb->protocol = eth_type_trans(sub_skb, ieee->dev);
589 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
590 sub_skb->dev = ieee->dev;
591 sub_skb->ip_summed = CHECKSUM_NONE;
592
593 ieee->last_rx_ps_time = jiffies;
594
595 netif_rx(sub_skb);
596 }
597 }
598 kfree(prxb);
599 prxb = NULL;
600 }
601}
602
603
604void RxReorderIndicatePacket( struct ieee80211_device *ieee,
605 struct ieee80211_rxb *prxb,
606 PRX_TS_RECORD pTS,
607 u16 SeqNum)
608{
609 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
610 PRX_REORDER_ENTRY pReorderEntry = NULL;
611 struct ieee80211_rxb *prxbIndicateArray[REORDER_WIN_SIZE];
612 u8 WinSize = pHTInfo->RxReorderWinSize;
613 u16 WinEnd = (pTS->RxIndicateSeq + WinSize -1)%4096;
614 u8 index = 0;
615 bool bMatchWinStart = false, bPktInBuf = false;
616 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): Seq is %d,pTS->RxIndicateSeq is %d, WinSize is %d\n",__FUNCTION__,SeqNum,pTS->RxIndicateSeq,WinSize);
617
618 if(pTS->RxIndicateSeq == 0xffff) {
619 pTS->RxIndicateSeq = SeqNum;
620 }
621
622
623 if(SN_LESS(SeqNum, pTS->RxIndicateSeq)) {
624 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packet Drop! IndicateSeq: %d, NewSeq: %d\n",
625 pTS->RxIndicateSeq, SeqNum);
626 pHTInfo->RxReorderDropCounter++;
627 {
628 int i;
629 for(i =0; i < prxb->nr_subframes; i++) {
630 dev_kfree_skb(prxb->subframes[i]);
631 }
632 kfree(prxb);
633 prxb = NULL;
634 }
635 return;
636 }
637
638
639
640
641
642
643 if(SN_EQUAL(SeqNum, pTS->RxIndicateSeq)) {
644 pTS->RxIndicateSeq = (pTS->RxIndicateSeq + 1) % 4096;
645 bMatchWinStart = true;
646 } else if(SN_LESS(WinEnd, SeqNum)) {
647 if(SeqNum >= (WinSize - 1)) {
648 pTS->RxIndicateSeq = SeqNum + 1 -WinSize;
649 } else {
650 pTS->RxIndicateSeq = 4095 - (WinSize - (SeqNum +1)) + 1;
651 }
652 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Window Shift! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
653 }
654
655
656
657
658
659
660
661
662
663
664 if(bMatchWinStart) {
665
666 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packets indication!! IndicateSeq: %d, NewSeq: %d\n",\
667 pTS->RxIndicateSeq, SeqNum);
668 prxbIndicateArray[0] = prxb;
669
670 index = 1;
671 } else {
672
673
674 if(!list_empty(&ieee->RxReorder_Unused_List)) {
675 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(ieee->RxReorder_Unused_List.next,RX_REORDER_ENTRY,List);
676 list_del_init(&pReorderEntry->List);
677
678
679 pReorderEntry->SeqNum = SeqNum;
680 pReorderEntry->prxb = prxb;
681
682
683 if(!AddReorderEntry(pTS, pReorderEntry)) {
684 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n",
685 __FUNCTION__, pTS->RxIndicateSeq, SeqNum);
686 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
687 {
688 int i;
689 for(i =0; i < prxb->nr_subframes; i++) {
690 dev_kfree_skb(prxb->subframes[i]);
691 }
692 kfree(prxb);
693 prxb = NULL;
694 }
695 } else {
696 IEEE80211_DEBUG(IEEE80211_DL_REORDER,
697 "Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
698 }
699 }
700 else {
701
702
703
704
705
706 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): There is no reorder entry!! Packet is dropped!!\n");
707 {
708 int i;
709 for(i =0; i < prxb->nr_subframes; i++) {
710 dev_kfree_skb(prxb->subframes[i]);
711 }
712 kfree(prxb);
713 prxb = NULL;
714 }
715 }
716 }
717
718
719 while(!list_empty(&pTS->RxPendingPktList)) {
720 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): start RREORDER indicate\n",__FUNCTION__);
721 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(pTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
722 if( SN_LESS(pReorderEntry->SeqNum, pTS->RxIndicateSeq) ||
723 SN_EQUAL(pReorderEntry->SeqNum, pTS->RxIndicateSeq))
724 {
725
726 if(index >= REORDER_WIN_SIZE) {
727 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n");
728 bPktInBuf = true;
729 break;
730 }
731
732 list_del_init(&pReorderEntry->List);
733
734 if(SN_EQUAL(pReorderEntry->SeqNum, pTS->RxIndicateSeq))
735 pTS->RxIndicateSeq = (pTS->RxIndicateSeq + 1) % 4096;
736
737 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packets indication!! IndicateSeq: %d, NewSeq: %d\n",pTS->RxIndicateSeq, SeqNum);
738 prxbIndicateArray[index] = pReorderEntry->prxb;
739
740 index++;
741
742 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
743 } else {
744 bPktInBuf = true;
745 break;
746 }
747 }
748
749
750 if(index>0) {
751
752
753 pTS->RxTimeoutIndicateSeq = 0xffff;
754
755
756 if(index>REORDER_WIN_SIZE){
757 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorer buffer full!! \n");
758 return;
759 }
760 ieee80211_indicate_packets(ieee, prxbIndicateArray, index);
761 }
762
763 if(bPktInBuf && pTS->RxTimeoutIndicateSeq==0xffff) {
764
765 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): SET rx timeout timer\n", __FUNCTION__);
766 pTS->RxTimeoutIndicateSeq = pTS->RxIndicateSeq;
767 if(timer_pending(&pTS->RxPktPendingTimer))
768 del_timer_sync(&pTS->RxPktPendingTimer);
769 pTS->RxPktPendingTimer.expires = jiffies + MSECS(pHTInfo->RxReorderPendingTime);
770 add_timer(&pTS->RxPktPendingTimer);
771 }
772}
773
774u8 parse_subframe(struct sk_buff *skb,
775 struct ieee80211_rx_stats *rx_stats,
776 struct ieee80211_rxb *rxb,u8 *src,u8 *dst)
777{
778 struct ieee80211_hdr_3addr *hdr = (struct ieee80211_hdr_3addr *)skb->data;
779 u16 fc = le16_to_cpu(hdr->frame_ctl);
780
781 u16 LLCOffset= sizeof(struct ieee80211_hdr_3addr);
782 u16 ChkLength;
783 bool bIsAggregateFrame = false;
784 u16 nSubframe_Length;
785 u8 nPadding_Length = 0;
786 u16 SeqNum=0;
787
788 struct sk_buff *sub_skb;
789 u8 *data_ptr;
790
791 SeqNum = WLAN_GET_SEQ_SEQ(le16_to_cpu(hdr->seq_ctl));
792
793 if((IEEE80211_QOS_HAS_SEQ(fc))&&\
794 (((frameqos *)(skb->data + IEEE80211_3ADDR_LEN))->field.reserved)) {
795 bIsAggregateFrame = true;
796 }
797
798 if(IEEE80211_QOS_HAS_SEQ(fc)) {
799 LLCOffset += 2;
800 }
801
802 if(rx_stats->bContainHTC) {
803 LLCOffset += sHTCLng;
804 }
805
806
807 ChkLength = LLCOffset;
808
809 if( skb->len <= ChkLength ) {
810 return 0;
811 }
812
813 skb_pull(skb, LLCOffset);
814
815 if(!bIsAggregateFrame) {
816 rxb->nr_subframes = 1;
817#ifdef JOHN_NOCPY
818 rxb->subframes[0] = skb;
819#else
820 rxb->subframes[0] = skb_copy(skb, GFP_ATOMIC);
821#endif
822
823 memcpy(rxb->src,src,ETH_ALEN);
824 memcpy(rxb->dst,dst,ETH_ALEN);
825
826 return 1;
827 } else {
828 rxb->nr_subframes = 0;
829 memcpy(rxb->src,src,ETH_ALEN);
830 memcpy(rxb->dst,dst,ETH_ALEN);
831 while(skb->len > ETHERNET_HEADER_SIZE) {
832
833 nSubframe_Length = *((u16 *)(skb->data + 12));
834
835 nSubframe_Length = (nSubframe_Length>>8) + (nSubframe_Length<<8);
836
837 if(skb->len<(ETHERNET_HEADER_SIZE + nSubframe_Length)) {
838 printk("%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
839 __FUNCTION__,rxb->nr_subframes);
840 printk("%s: A-MSDU parse error!! Subframe Length: %d\n",__FUNCTION__, nSubframe_Length);
841 printk("nRemain_Length is %d and nSubframe_Length is : %d\n",skb->len,nSubframe_Length);
842 printk("The Packet SeqNum is %d\n",SeqNum);
843 return 0;
844 }
845
846
847 skb_pull(skb, ETHERNET_HEADER_SIZE);
848
849#ifdef JOHN_NOCPY
850 sub_skb = skb_clone(skb, GFP_ATOMIC);
851 sub_skb->len = nSubframe_Length;
852 sub_skb->tail = sub_skb->data + nSubframe_Length;
853#else
854
855 sub_skb = dev_alloc_skb(nSubframe_Length + 12);
856 skb_reserve(sub_skb, 12);
857 data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length);
858 memcpy(data_ptr,skb->data,nSubframe_Length);
859#endif
860 rxb->subframes[rxb->nr_subframes++] = sub_skb;
861 if(rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
862 IEEE80211_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
863 break;
864 }
865 skb_pull(skb,nSubframe_Length);
866
867 if(skb->len != 0) {
868 nPadding_Length = 4 - ((nSubframe_Length + ETHERNET_HEADER_SIZE) % 4);
869 if(nPadding_Length == 4) {
870 nPadding_Length = 0;
871 }
872
873 if(skb->len < nPadding_Length) {
874 return 0;
875 }
876
877 skb_pull(skb,nPadding_Length);
878 }
879 }
880#ifdef JOHN_NOCPY
881 dev_kfree_skb(skb);
882#endif
883
884
885
886 return rxb->nr_subframes;
887 }
888}
889
890
891
892
893int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
894 struct ieee80211_rx_stats *rx_stats)
895{
896 struct net_device *dev = ieee->dev;
897 struct ieee80211_hdr_4addr *hdr;
898
899
900 size_t hdrlen;
901 u16 fc, type, stype, sc;
902 struct net_device_stats *stats;
903 unsigned int frag;
904 u8 *payload;
905 u16 ethertype;
906
907 u8 TID = 0;
908 u16 SeqNum = 0;
909 PRX_TS_RECORD pTS = NULL;
910
911
912#ifdef NOT_YET
913 struct net_device *wds = NULL;
914 struct sk_buff *skb2 = NULL;
915 struct net_device *wds = NULL;
916 int frame_authorized = 0;
917 int from_assoc_ap = 0;
918 void *sta = NULL;
919#endif
920
921 u8 dst[ETH_ALEN];
922 u8 src[ETH_ALEN];
923 u8 bssid[ETH_ALEN];
924 struct ieee80211_crypt_data *crypt = NULL;
925 int keyidx = 0;
926
927 int i;
928 struct ieee80211_rxb *rxb = NULL;
929
930 hdr = (struct ieee80211_hdr_4addr *)skb->data;
931 stats = &ieee->stats;
932
933 if (skb->len < 10) {
934 printk(KERN_INFO "%s: SKB length < 10\n",
935 dev->name);
936 goto rx_dropped;
937 }
938
939 fc = le16_to_cpu(hdr->frame_ctl);
940 type = WLAN_FC_GET_TYPE(fc);
941 stype = WLAN_FC_GET_STYPE(fc);
942 sc = le16_to_cpu(hdr->seq_ctl);
943
944 frag = WLAN_GET_SEQ_FRAG(sc);
945 hdrlen = ieee80211_get_hdrlen(fc);
946
947 if(HTCCheck(ieee, skb->data))
948 {
949 if(net_ratelimit())
950 printk("find HTCControl\n");
951 hdrlen += 4;
952 rx_stats->bContainHTC = 1;
953 }
954
955
956#ifdef NOT_YET
957#if WIRELESS_EXT > 15
958
959
960#ifdef IW_WIRELESS_SPY
961
962 if (iface->spy_data.spy_number > 0) {
963 struct iw_quality wstats;
964 wstats.level = rx_stats->rssi;
965 wstats.noise = rx_stats->noise;
966 wstats.updated = 6;
967
968 wireless_spy_update(dev, hdr->addr2, &wstats);
969 }
970#endif
971#endif
972 hostap_update_rx_stats(local->ap, hdr, rx_stats);
973#endif
974
975#if WIRELESS_EXT > 15
976 if (ieee->iw_mode == IW_MODE_MONITOR) {
977 ieee80211_monitor_rx(ieee, skb, rx_stats);
978 stats->rx_packets++;
979 stats->rx_bytes += skb->len;
980 return 1;
981 }
982#endif
983 if (ieee->host_decrypt) {
984 int idx = 0;
985 if (skb->len >= hdrlen + 3)
986 idx = skb->data[hdrlen + 3] >> 6;
987 crypt = ieee->crypt[idx];
988#ifdef NOT_YET
989 sta = NULL;
990
991
992
993
994
995
996
997
998 if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key)
999 (void) hostap_handle_sta_crypto(local, hdr, &crypt,
1000 &sta);
1001#endif
1002
1003
1004
1005 if (crypt && (crypt->ops == NULL ||
1006 crypt->ops->decrypt_mpdu == NULL))
1007 crypt = NULL;
1008
1009 if (!crypt && (fc & IEEE80211_FCTL_WEP)) {
1010
1011
1012
1013
1014 IEEE80211_DEBUG_DROP("Decryption failed (not set)"
1015 " (SA=%pM)\n",
1016 hdr->addr2);
1017 ieee->ieee_stats.rx_discards_undecryptable++;
1018 goto rx_dropped;
1019 }
1020 }
1021
1022 if (skb->len < IEEE80211_DATA_HDR3_LEN)
1023 goto rx_dropped;
1024
1025
1026 if( (ieee->pHTInfo->bCurRxReorderEnable == false) || !ieee->current_network.qos_data.active|| !IsDataFrame(skb->data) || IsLegacyDataFrame(skb->data)){
1027 if (is_duplicate_packet(ieee, hdr))
1028 goto rx_dropped;
1029
1030 }
1031 else
1032 {
1033 PRX_TS_RECORD pRxTS = NULL;
1034
1035 if(GetTs(
1036 ieee,
1037 (PTS_COMMON_INFO *) &pRxTS,
1038 hdr->addr2,
1039 (u8)Frame_QoSTID((u8 *)(skb->data)),
1040 RX_DIR,
1041 true))
1042 {
1043
1044
1045 if( (fc & (1<<11)) &&
1046 (frag == pRxTS->RxLastFragNum) &&
1047 (WLAN_GET_SEQ_SEQ(sc) == pRxTS->RxLastSeqNum) )
1048 {
1049 goto rx_dropped;
1050 }
1051 else
1052 {
1053 pRxTS->RxLastFragNum = frag;
1054 pRxTS->RxLastSeqNum = WLAN_GET_SEQ_SEQ(sc);
1055 }
1056 }
1057 else
1058 {
1059 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s(): No TS!! Skip the check!!\n",__FUNCTION__);
1060 goto rx_dropped;
1061 }
1062 }
1063 if (type == IEEE80211_FTYPE_MGMT) {
1064
1065
1066
1067 if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype))
1068 goto rx_dropped;
1069 else
1070 goto rx_exit;
1071 }
1072
1073
1074 switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
1075 case IEEE80211_FCTL_FROMDS:
1076 memcpy(dst, hdr->addr1, ETH_ALEN);
1077 memcpy(src, hdr->addr3, ETH_ALEN);
1078 memcpy(bssid, hdr->addr2, ETH_ALEN);
1079 break;
1080 case IEEE80211_FCTL_TODS:
1081 memcpy(dst, hdr->addr3, ETH_ALEN);
1082 memcpy(src, hdr->addr2, ETH_ALEN);
1083 memcpy(bssid, hdr->addr1, ETH_ALEN);
1084 break;
1085 case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
1086 if (skb->len < IEEE80211_DATA_HDR4_LEN)
1087 goto rx_dropped;
1088 memcpy(dst, hdr->addr3, ETH_ALEN);
1089 memcpy(src, hdr->addr4, ETH_ALEN);
1090 memcpy(bssid, ieee->current_network.bssid, ETH_ALEN);
1091 break;
1092 case 0:
1093 memcpy(dst, hdr->addr1, ETH_ALEN);
1094 memcpy(src, hdr->addr2, ETH_ALEN);
1095 memcpy(bssid, hdr->addr3, ETH_ALEN);
1096 break;
1097 }
1098
1099#ifdef NOT_YET
1100 if (hostap_rx_frame_wds(ieee, hdr, fc, &wds))
1101 goto rx_dropped;
1102 if (wds) {
1103 skb->dev = dev = wds;
1104 stats = hostap_get_stats(dev);
1105 }
1106
1107 if (ieee->iw_mode == IW_MODE_MASTER && !wds &&
1108 (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS &&
1109 ieee->stadev &&
1110 memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) {
1111
1112 skb->dev = dev = ieee->stadev;
1113 stats = hostap_get_stats(dev);
1114 from_assoc_ap = 1;
1115 }
1116#endif
1117
1118 dev->last_rx = jiffies;
1119
1120#ifdef NOT_YET
1121 if ((ieee->iw_mode == IW_MODE_MASTER ||
1122 ieee->iw_mode == IW_MODE_REPEAT) &&
1123 !from_assoc_ap) {
1124 switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats,
1125 wds != NULL)) {
1126 case AP_RX_CONTINUE_NOT_AUTHORIZED:
1127 frame_authorized = 0;
1128 break;
1129 case AP_RX_CONTINUE:
1130 frame_authorized = 1;
1131 break;
1132 case AP_RX_DROP:
1133 goto rx_dropped;
1134 case AP_RX_EXIT:
1135 goto rx_exit;
1136 }
1137 }
1138#endif
1139
1140
1141
1142 if (stype != IEEE80211_STYPE_DATA &&
1143 stype != IEEE80211_STYPE_DATA_CFACK &&
1144 stype != IEEE80211_STYPE_DATA_CFPOLL &&
1145 stype != IEEE80211_STYPE_DATA_CFACKPOLL&&
1146 stype != IEEE80211_STYPE_QOS_DATA
1147 ) {
1148 if (stype != IEEE80211_STYPE_NULLFUNC)
1149 IEEE80211_DEBUG_DROP(
1150 "RX: dropped data frame "
1151 "with no data (type=0x%02x, "
1152 "subtype=0x%02x, len=%d)\n",
1153 type, stype, skb->len);
1154 goto rx_dropped;
1155 }
1156 if (memcmp(bssid, ieee->current_network.bssid, ETH_ALEN))
1157 goto rx_dropped;
1158
1159
1160
1161 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1162 (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
1163 {
1164 printk("decrypt frame error\n");
1165 goto rx_dropped;
1166 }
1167
1168
1169 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1170
1171
1172
1173
1174 if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) {
1175 int flen;
1176 struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr);
1177 IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag);
1178
1179 if (!frag_skb) {
1180 IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG,
1181 "Rx cannot get skb from fragment "
1182 "cache (morefrag=%d seq=%u frag=%u)\n",
1183 (fc & IEEE80211_FCTL_MOREFRAGS) != 0,
1184 WLAN_GET_SEQ_SEQ(sc), frag);
1185 goto rx_dropped;
1186 }
1187 flen = skb->len;
1188 if (frag != 0)
1189 flen -= hdrlen;
1190
1191 if (frag_skb->tail + flen > frag_skb->end) {
1192 printk(KERN_WARNING "%s: host decrypted and "
1193 "reassembled frame did not fit skb\n",
1194 dev->name);
1195 ieee80211_frag_cache_invalidate(ieee, hdr);
1196 goto rx_dropped;
1197 }
1198
1199 if (frag == 0) {
1200
1201
1202 memcpy(skb_put(frag_skb, flen), skb->data, flen);
1203 } else {
1204
1205
1206 memcpy(skb_put(frag_skb, flen), skb->data + hdrlen,
1207 flen);
1208 }
1209 dev_kfree_skb_any(skb);
1210 skb = NULL;
1211
1212 if (fc & IEEE80211_FCTL_MOREFRAGS) {
1213
1214
1215
1216 goto rx_exit;
1217 }
1218
1219
1220
1221 skb = frag_skb;
1222 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1223 ieee80211_frag_cache_invalidate(ieee, hdr);
1224 }
1225
1226
1227
1228 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1229 ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
1230 {
1231 printk("==>decrypt msdu error\n");
1232 goto rx_dropped;
1233 }
1234
1235
1236 ieee->LinkDetectInfo.NumRecvDataInPeriod++;
1237 ieee->LinkDetectInfo.NumRxOkInPeriod++;
1238
1239 hdr = (struct ieee80211_hdr_4addr *) skb->data;
1240 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) {
1241 if (
1242 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1243
1244#ifdef CONFIG_IEEE80211_DEBUG
1245
1246
1247 struct eapol *eap = (struct eapol *)(skb->data +
1248 24);
1249 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1250 eap_get_type(eap->type));
1251#endif
1252 } else {
1253 IEEE80211_DEBUG_DROP(
1254 "encryption configured, but RX "
1255 "frame not encrypted (SA=%pM)\n",
1256 hdr->addr2);
1257 goto rx_dropped;
1258 }
1259 }
1260
1261#ifdef CONFIG_IEEE80211_DEBUG
1262 if (crypt && !(fc & IEEE80211_FCTL_WEP) &&
1263 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1264 struct eapol *eap = (struct eapol *)(skb->data +
1265 24);
1266 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1267 eap_get_type(eap->type));
1268 }
1269#endif
1270
1271 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep &&
1272 !ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1273 IEEE80211_DEBUG_DROP(
1274 "dropped unencrypted RX data "
1275 "frame from %pM"
1276 " (drop_unencrypted=1)\n",
1277 hdr->addr2);
1278 goto rx_dropped;
1279 }
1280
1281
1282
1283
1284
1285
1286 if(ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
1287 && !is_multicast_ether_addr(hdr->addr1))
1288 {
1289 TID = Frame_QoSTID(skb->data);
1290 SeqNum = WLAN_GET_SEQ_SEQ(sc);
1291 GetTs(ieee,(PTS_COMMON_INFO *) &pTS,hdr->addr2,TID,RX_DIR,true);
1292 if(TID !=0 && TID !=3)
1293 {
1294 ieee->bis_any_nonbepkts = true;
1295 }
1296 }
1297
1298
1299 payload = skb->data + hdrlen;
1300
1301 rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
1302 if(rxb == NULL)
1303 {
1304 IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);
1305 goto rx_dropped;
1306 }
1307
1308
1309 if(parse_subframe(skb,rx_stats,rxb,src,dst) == 0) {
1310
1311 for(i =0; i < rxb->nr_subframes; i++) {
1312 dev_kfree_skb(rxb->subframes[i]);
1313 }
1314 kfree(rxb);
1315 rxb = NULL;
1316 goto rx_dropped;
1317 }
1318
1319
1320 if(ieee->pHTInfo->bCurRxReorderEnable == false ||pTS == NULL){
1321
1322 for(i = 0; i<rxb->nr_subframes; i++) {
1323 struct sk_buff *sub_skb = rxb->subframes[i];
1324
1325 if (sub_skb) {
1326
1327 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
1328 if (sub_skb->len >= 8 &&
1329 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
1330 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
1331 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
1332
1333
1334 skb_pull(sub_skb, SNAP_SIZE);
1335 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1336 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1337 } else {
1338 u16 len;
1339
1340 len = htons(sub_skb->len);
1341 memcpy(skb_push(sub_skb, 2), &len, 2);
1342 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1343 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1344 }
1345
1346 stats->rx_packets++;
1347 stats->rx_bytes += sub_skb->len;
1348 if(is_multicast_ether_addr(dst)) {
1349 stats->multicast++;
1350 }
1351
1352
1353
1354 sub_skb->protocol = eth_type_trans(sub_skb, dev);
1355 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
1356 sub_skb->dev = dev;
1357 sub_skb->ip_summed = CHECKSUM_NONE;
1358
1359 ieee->last_rx_ps_time = jiffies;
1360
1361 netif_rx(sub_skb);
1362 }
1363 }
1364 kfree(rxb);
1365 rxb = NULL;
1366
1367 }
1368 else
1369 {
1370 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): REORDER ENABLE AND PTS not NULL, and we will enter RxReorderIndicatePacket()\n",__FUNCTION__);
1371 RxReorderIndicatePacket(ieee, rxb, pTS, SeqNum);
1372 }
1373#ifndef JOHN_NOCPY
1374 dev_kfree_skb(skb);
1375#endif
1376
1377 rx_exit:
1378#ifdef NOT_YET
1379 if (sta)
1380 hostap_handle_sta_release(sta);
1381#endif
1382 return 1;
1383
1384 rx_dropped:
1385 kfree(rxb);
1386 rxb = NULL;
1387 stats->rx_dropped++;
1388
1389
1390
1391
1392 return 0;
1393}
1394
1395#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
1396
1397static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
1398
1399
1400
1401
1402
1403static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
1404 *info_element, int sub_type)
1405{
1406
1407 if (info_element->qui_subtype != sub_type)
1408 return -1;
1409 if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
1410 return -1;
1411 if (info_element->qui_type != QOS_OUI_TYPE)
1412 return -1;
1413 if (info_element->version != QOS_VERSION_1)
1414 return -1;
1415
1416 return 0;
1417}
1418
1419
1420
1421
1422
1423static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
1424 *element_param, struct ieee80211_info_element
1425 *info_element)
1426{
1427 int ret = 0;
1428 u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
1429
1430 if ((info_element == NULL) || (element_param == NULL))
1431 return -1;
1432
1433 if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
1434 memcpy(element_param->info_element.qui, info_element->data,
1435 info_element->len);
1436 element_param->info_element.elementID = info_element->id;
1437 element_param->info_element.length = info_element->len;
1438 } else
1439 ret = -1;
1440 if (ret == 0)
1441 ret = ieee80211_verify_qos_info(&element_param->info_element,
1442 QOS_OUI_PARAM_SUB_TYPE);
1443 return ret;
1444}
1445
1446
1447
1448
1449static int ieee80211_read_qos_info_element(struct
1450 ieee80211_qos_information_element
1451 *element_info, struct ieee80211_info_element
1452 *info_element)
1453{
1454 int ret = 0;
1455 u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
1456
1457 if (element_info == NULL)
1458 return -1;
1459 if (info_element == NULL)
1460 return -1;
1461
1462 if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
1463 memcpy(element_info->qui, info_element->data,
1464 info_element->len);
1465 element_info->elementID = info_element->id;
1466 element_info->length = info_element->len;
1467 } else
1468 ret = -1;
1469
1470 if (ret == 0)
1471 ret = ieee80211_verify_qos_info(element_info,
1472 QOS_OUI_INFO_SUB_TYPE);
1473 return ret;
1474}
1475
1476
1477
1478
1479
1480static int ieee80211_qos_convert_ac_to_parameters(struct
1481 ieee80211_qos_parameter_info
1482 *param_elm, struct
1483 ieee80211_qos_parameters
1484 *qos_param)
1485{
1486 int rc = 0;
1487 int i;
1488 struct ieee80211_qos_ac_parameter *ac_params;
1489 u8 aci;
1490
1491
1492
1493 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1494 ac_params = &(param_elm->ac_params_record[i]);
1495
1496 aci = (ac_params->aci_aifsn & 0x60) >> 5;
1497
1498 if(aci >= QOS_QUEUE_NUM)
1499 continue;
1500 qos_param->aifs[aci] = (ac_params->aci_aifsn) & 0x0f;
1501
1502
1503 qos_param->aifs[aci] = (qos_param->aifs[aci] < 2) ? 2:qos_param->aifs[aci];
1504
1505 qos_param->cw_min[aci] = ac_params->ecw_min_max & 0x0F;
1506
1507 qos_param->cw_max[aci] = (ac_params->ecw_min_max & 0xF0) >> 4;
1508
1509 qos_param->flag[aci] =
1510 (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
1511 qos_param->tx_op_limit[aci] = le16_to_cpu(ac_params->tx_op_limit);
1512 }
1513 return rc;
1514}
1515
1516
1517
1518
1519
1520
1521static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
1522 *info_element,
1523 struct ieee80211_network *network)
1524{
1525 int rc = 0;
1526 struct ieee80211_qos_parameters *qos_param = NULL;
1527 struct ieee80211_qos_information_element qos_info_element;
1528
1529 rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
1530
1531 if (rc == 0) {
1532 network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
1533 network->flags |= NETWORK_HAS_QOS_INFORMATION;
1534 } else {
1535 struct ieee80211_qos_parameter_info param_element;
1536
1537 rc = ieee80211_read_qos_param_element(¶m_element,
1538 info_element);
1539 if (rc == 0) {
1540 qos_param = &(network->qos_data.parameters);
1541 ieee80211_qos_convert_ac_to_parameters(¶m_element,
1542 qos_param);
1543 network->flags |= NETWORK_HAS_QOS_PARAMETERS;
1544 network->qos_data.param_count =
1545 param_element.info_element.ac_info & 0x0F;
1546 }
1547 }
1548
1549 if (rc == 0) {
1550 IEEE80211_DEBUG_QOS("QoS is supported\n");
1551 network->qos_data.supported = 1;
1552 }
1553 return rc;
1554}
1555
1556#ifdef CONFIG_IEEE80211_DEBUG
1557#define MFIE_STRING(x) case MFIE_TYPE_ ##x: return #x
1558
1559static const char *get_info_element_string(u16 id)
1560{
1561 switch (id) {
1562 MFIE_STRING(SSID);
1563 MFIE_STRING(RATES);
1564 MFIE_STRING(FH_SET);
1565 MFIE_STRING(DS_SET);
1566 MFIE_STRING(CF_SET);
1567 MFIE_STRING(TIM);
1568 MFIE_STRING(IBSS_SET);
1569 MFIE_STRING(COUNTRY);
1570 MFIE_STRING(HOP_PARAMS);
1571 MFIE_STRING(HOP_TABLE);
1572 MFIE_STRING(REQUEST);
1573 MFIE_STRING(CHALLENGE);
1574 MFIE_STRING(POWER_CONSTRAINT);
1575 MFIE_STRING(POWER_CAPABILITY);
1576 MFIE_STRING(TPC_REQUEST);
1577 MFIE_STRING(TPC_REPORT);
1578 MFIE_STRING(SUPP_CHANNELS);
1579 MFIE_STRING(CSA);
1580 MFIE_STRING(MEASURE_REQUEST);
1581 MFIE_STRING(MEASURE_REPORT);
1582 MFIE_STRING(QUIET);
1583 MFIE_STRING(IBSS_DFS);
1584
1585 MFIE_STRING(RSN);
1586 MFIE_STRING(RATES_EX);
1587 MFIE_STRING(GENERIC);
1588 MFIE_STRING(QOS_PARAMETER);
1589 default:
1590 return "UNKNOWN";
1591 }
1592}
1593#endif
1594
1595static inline void ieee80211_extract_country_ie(
1596 struct ieee80211_device *ieee,
1597 struct ieee80211_info_element *info_element,
1598 struct ieee80211_network *network,
1599 u8 *addr2
1600)
1601{
1602 if(IS_DOT11D_ENABLE(ieee))
1603 {
1604 if(info_element->len!= 0)
1605 {
1606 memcpy(network->CountryIeBuf, info_element->data, info_element->len);
1607 network->CountryIeLen = info_element->len;
1608
1609 if(!IS_COUNTRY_IE_VALID(ieee))
1610 {
1611 Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data);
1612 }
1613 }
1614
1615
1616
1617
1618
1619
1620 if(IS_EQUAL_CIE_SRC(ieee, addr2) )
1621 {
1622 UPDATE_CIE_WATCHDOG(ieee);
1623 }
1624 }
1625
1626}
1627
1628int ieee80211_parse_info_param(struct ieee80211_device *ieee,
1629 struct ieee80211_info_element *info_element,
1630 u16 length,
1631 struct ieee80211_network *network,
1632 struct ieee80211_rx_stats *stats)
1633{
1634 u8 i;
1635 short offset;
1636 u16 tmp_htcap_len=0;
1637 u16 tmp_htinfo_len=0;
1638 u16 ht_realtek_agg_len=0;
1639 u8 ht_realtek_agg_buf[MAX_IE_LEN];
1640
1641#ifdef CONFIG_IEEE80211_DEBUG
1642 char rates_str[64];
1643 char *p;
1644#endif
1645
1646 while (length >= sizeof(*info_element)) {
1647 if (sizeof(*info_element) + info_element->len > length) {
1648 IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
1649 "info_element->len + 2 > left : "
1650 "info_element->len+2=%zd left=%d, id=%d.\n",
1651 info_element->len +
1652 sizeof(*info_element),
1653 length, info_element->id);
1654
1655
1656
1657 break;
1658 }
1659
1660 switch (info_element->id) {
1661 case MFIE_TYPE_SSID:
1662 if (ieee80211_is_empty_essid(info_element->data,
1663 info_element->len)) {
1664 network->flags |= NETWORK_EMPTY_ESSID;
1665 break;
1666 }
1667
1668 network->ssid_len = min(info_element->len,
1669 (u8) IW_ESSID_MAX_SIZE);
1670 memcpy(network->ssid, info_element->data, network->ssid_len);
1671 if (network->ssid_len < IW_ESSID_MAX_SIZE)
1672 memset(network->ssid + network->ssid_len, 0,
1673 IW_ESSID_MAX_SIZE - network->ssid_len);
1674
1675 IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
1676 network->ssid, network->ssid_len);
1677 break;
1678
1679 case MFIE_TYPE_RATES:
1680#ifdef CONFIG_IEEE80211_DEBUG
1681 p = rates_str;
1682#endif
1683 network->rates_len = min(info_element->len,
1684 MAX_RATES_LENGTH);
1685 for (i = 0; i < network->rates_len; i++) {
1686 network->rates[i] = info_element->data[i];
1687#ifdef CONFIG_IEEE80211_DEBUG
1688 p += snprintf(p, sizeof(rates_str) -
1689 (p - rates_str), "%02X ",
1690 network->rates[i]);
1691#endif
1692 if (ieee80211_is_ofdm_rate
1693 (info_element->data[i])) {
1694 network->flags |= NETWORK_HAS_OFDM;
1695 if (info_element->data[i] &
1696 IEEE80211_BASIC_RATE_MASK)
1697 network->flags &=
1698 ~NETWORK_HAS_CCK;
1699 }
1700 }
1701
1702 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
1703 rates_str, network->rates_len);
1704 break;
1705
1706 case MFIE_TYPE_RATES_EX:
1707#ifdef CONFIG_IEEE80211_DEBUG
1708 p = rates_str;
1709#endif
1710 network->rates_ex_len = min(info_element->len,
1711 MAX_RATES_EX_LENGTH);
1712 for (i = 0; i < network->rates_ex_len; i++) {
1713 network->rates_ex[i] = info_element->data[i];
1714#ifdef CONFIG_IEEE80211_DEBUG
1715 p += snprintf(p, sizeof(rates_str) -
1716 (p - rates_str), "%02X ",
1717 network->rates[i]);
1718#endif
1719 if (ieee80211_is_ofdm_rate
1720 (info_element->data[i])) {
1721 network->flags |= NETWORK_HAS_OFDM;
1722 if (info_element->data[i] &
1723 IEEE80211_BASIC_RATE_MASK)
1724 network->flags &=
1725 ~NETWORK_HAS_CCK;
1726 }
1727 }
1728
1729 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
1730 rates_str, network->rates_ex_len);
1731 break;
1732
1733 case MFIE_TYPE_DS_SET:
1734 IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
1735 info_element->data[0]);
1736 network->channel = info_element->data[0];
1737 break;
1738
1739 case MFIE_TYPE_FH_SET:
1740 IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
1741 break;
1742
1743 case MFIE_TYPE_CF_SET:
1744 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
1745 break;
1746
1747 case MFIE_TYPE_TIM:
1748 if(info_element->len < 4)
1749 break;
1750
1751 network->tim.tim_count = info_element->data[0];
1752 network->tim.tim_period = info_element->data[1];
1753
1754 network->dtim_period = info_element->data[1];
1755 if(ieee->state != IEEE80211_LINKED)
1756 break;
1757
1758 network->last_dtim_sta_time[0] = stats->mac_time[0];
1759 network->last_dtim_sta_time[1] = stats->mac_time[1];
1760
1761 network->dtim_data = IEEE80211_DTIM_VALID;
1762
1763 if(info_element->data[0] != 0)
1764 break;
1765
1766 if(info_element->data[2] & 1)
1767 network->dtim_data |= IEEE80211_DTIM_MBCAST;
1768
1769 offset = (info_element->data[2] >> 1)*2;
1770
1771
1772
1773 if(ieee->assoc_id < 8*offset ||
1774 ieee->assoc_id > 8*(offset + info_element->len -3))
1775
1776 break;
1777
1778 offset = (ieee->assoc_id / 8) - offset;
1779
1780 if(info_element->data[3+offset] & (1<<(ieee->assoc_id%8)))
1781 network->dtim_data |= IEEE80211_DTIM_UCAST;
1782
1783
1784 break;
1785
1786 case MFIE_TYPE_ERP:
1787 network->erp_value = info_element->data[0];
1788 network->flags |= NETWORK_HAS_ERP_VALUE;
1789 IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
1790 network->erp_value);
1791 break;
1792 case MFIE_TYPE_IBSS_SET:
1793 network->atim_window = info_element->data[0];
1794 IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
1795 network->atim_window);
1796 break;
1797
1798 case MFIE_TYPE_CHALLENGE:
1799 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
1800 break;
1801
1802 case MFIE_TYPE_GENERIC:
1803 IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
1804 info_element->len);
1805 if (!ieee80211_parse_qos_info_param_IE(info_element,
1806 network))
1807 break;
1808
1809 if (info_element->len >= 4 &&
1810 info_element->data[0] == 0x00 &&
1811 info_element->data[1] == 0x50 &&
1812 info_element->data[2] == 0xf2 &&
1813 info_element->data[3] == 0x01) {
1814 network->wpa_ie_len = min(info_element->len + 2,
1815 MAX_WPA_IE_LEN);
1816 memcpy(network->wpa_ie, info_element,
1817 network->wpa_ie_len);
1818 break;
1819 }
1820
1821#ifdef THOMAS_TURBO
1822 if (info_element->len == 7 &&
1823 info_element->data[0] == 0x00 &&
1824 info_element->data[1] == 0xe0 &&
1825 info_element->data[2] == 0x4c &&
1826 info_element->data[3] == 0x01 &&
1827 info_element->data[4] == 0x02) {
1828 network->Turbo_Enable = 1;
1829 }
1830#endif
1831
1832
1833 if(tmp_htcap_len == 0){
1834 if(info_element->len >= 4 &&
1835 info_element->data[0] == 0x00 &&
1836 info_element->data[1] == 0x90 &&
1837 info_element->data[2] == 0x4c &&
1838 info_element->data[3] == 0x033){
1839
1840 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
1841 if(tmp_htcap_len != 0){
1842 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1843 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
1844 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
1845 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
1846 }
1847 }
1848 if(tmp_htcap_len != 0)
1849 network->bssht.bdSupportHT = true;
1850 else
1851 network->bssht.bdSupportHT = false;
1852 }
1853
1854
1855 if(tmp_htinfo_len == 0){
1856 if(info_element->len >= 4 &&
1857 info_element->data[0] == 0x00 &&
1858 info_element->data[1] == 0x90 &&
1859 info_element->data[2] == 0x4c &&
1860 info_element->data[3] == 0x034){
1861
1862 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
1863 if(tmp_htinfo_len != 0){
1864 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1865 if(tmp_htinfo_len){
1866 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
1867 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
1868 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
1869 }
1870
1871 }
1872
1873 }
1874 }
1875
1876 if(ieee->aggregation){
1877 if(network->bssht.bdSupportHT){
1878 if(info_element->len >= 4 &&
1879 info_element->data[0] == 0x00 &&
1880 info_element->data[1] == 0xe0 &&
1881 info_element->data[2] == 0x4c &&
1882 info_element->data[3] == 0x02){
1883
1884 ht_realtek_agg_len = min(info_element->len,(u8)MAX_IE_LEN);
1885 memcpy(ht_realtek_agg_buf,info_element->data,info_element->len);
1886
1887 }
1888 if(ht_realtek_agg_len >= 5){
1889 network->bssht.bdRT2RTAggregation = true;
1890
1891 if((ht_realtek_agg_buf[4] == 1) && (ht_realtek_agg_buf[5] & 0x02))
1892 network->bssht.bdRT2RTLongSlotTime = true;
1893 }
1894 }
1895
1896 }
1897
1898
1899 {
1900 if((info_element->len >= 3 &&
1901 info_element->data[0] == 0x00 &&
1902 info_element->data[1] == 0x05 &&
1903 info_element->data[2] == 0xb5) ||
1904 (info_element->len >= 3 &&
1905 info_element->data[0] == 0x00 &&
1906 info_element->data[1] == 0x0a &&
1907 info_element->data[2] == 0xf7) ||
1908 (info_element->len >= 3 &&
1909 info_element->data[0] == 0x00 &&
1910 info_element->data[1] == 0x10 &&
1911 info_element->data[2] == 0x18)){
1912
1913 network->broadcom_cap_exist = true;
1914
1915 }
1916 }
1917 if(info_element->len >= 3 &&
1918 info_element->data[0] == 0x00 &&
1919 info_element->data[1] == 0x0c &&
1920 info_element->data[2] == 0x43)
1921 {
1922 network->ralink_cap_exist = true;
1923 }
1924 else
1925 network->ralink_cap_exist = false;
1926
1927 if((info_element->len >= 3 &&
1928 info_element->data[0] == 0x00 &&
1929 info_element->data[1] == 0x03 &&
1930 info_element->data[2] == 0x7f) ||
1931 (info_element->len >= 3 &&
1932 info_element->data[0] == 0x00 &&
1933 info_element->data[1] == 0x13 &&
1934 info_element->data[2] == 0x74))
1935 {
1936 printk("========>%s(): athros AP is exist\n",__FUNCTION__);
1937 network->atheros_cap_exist = true;
1938 }
1939 else
1940 network->atheros_cap_exist = false;
1941
1942 if(info_element->len >= 3 &&
1943 info_element->data[0] == 0x00 &&
1944 info_element->data[1] == 0x40 &&
1945 info_element->data[2] == 0x96)
1946 {
1947 network->cisco_cap_exist = true;
1948 }
1949 else
1950 network->cisco_cap_exist = false;
1951
1952 if(info_element->len > 4 &&
1953 info_element->data[0] == 0x00 &&
1954 info_element->data[1] == 0x40 &&
1955 info_element->data[2] == 0x96 &&
1956 info_element->data[3] == 0x01)
1957 {
1958 if(info_element->len == 6)
1959 {
1960 memcpy(network->CcxRmState, &info_element[4], 2);
1961 if(network->CcxRmState[0] != 0)
1962 {
1963 network->bCcxRmEnable = true;
1964 }
1965 else
1966 network->bCcxRmEnable = false;
1967
1968
1969
1970 network->MBssidMask = network->CcxRmState[1] & 0x07;
1971 if(network->MBssidMask != 0)
1972 {
1973 network->bMBssidValid = true;
1974 network->MBssidMask = 0xff << (network->MBssidMask);
1975 cpMacAddr(network->MBssid, network->bssid);
1976 network->MBssid[5] &= network->MBssidMask;
1977 }
1978 else
1979 {
1980 network->bMBssidValid = false;
1981 }
1982 }
1983 else
1984 {
1985 network->bCcxRmEnable = false;
1986 }
1987 }
1988 if(info_element->len > 4 &&
1989 info_element->data[0] == 0x00 &&
1990 info_element->data[1] == 0x40 &&
1991 info_element->data[2] == 0x96 &&
1992 info_element->data[3] == 0x03)
1993 {
1994 if(info_element->len == 5)
1995 {
1996 network->bWithCcxVerNum = true;
1997 network->BssCcxVerNumber = info_element->data[4];
1998 }
1999 else
2000 {
2001 network->bWithCcxVerNum = false;
2002 network->BssCcxVerNumber = 0;
2003 }
2004 }
2005 break;
2006
2007 case MFIE_TYPE_RSN:
2008 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
2009 info_element->len);
2010 network->rsn_ie_len = min(info_element->len + 2,
2011 MAX_WPA_IE_LEN);
2012 memcpy(network->rsn_ie, info_element,
2013 network->rsn_ie_len);
2014 break;
2015
2016
2017 case MFIE_TYPE_HT_CAP:
2018 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_CAP: %d bytes\n",
2019 info_element->len);
2020 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
2021 if(tmp_htcap_len != 0){
2022 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
2023 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
2024 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
2025 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
2026
2027
2028
2029
2030 network->bssht.bdSupportHT = true;
2031 }
2032 else
2033 network->bssht.bdSupportHT = false;
2034 break;
2035
2036
2037 case MFIE_TYPE_HT_INFO:
2038 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_INFO: %d bytes\n",
2039 info_element->len);
2040 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
2041 if(tmp_htinfo_len){
2042 network->bssht.bdHTSpecVer = HT_SPEC_VER_IEEE;
2043 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
2044 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
2045 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
2046 }
2047 break;
2048
2049 case MFIE_TYPE_AIRONET:
2050 IEEE80211_DEBUG_SCAN("MFIE_TYPE_AIRONET: %d bytes\n",
2051 info_element->len);
2052 if(info_element->len >IE_CISCO_FLAG_POSITION)
2053 {
2054 network->bWithAironetIE = true;
2055
2056
2057
2058
2059 if( (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_MIC) ||
2060 (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_PK) )
2061 {
2062 network->bCkipSupported = true;
2063 }
2064 else
2065 {
2066 network->bCkipSupported = false;
2067 }
2068 }
2069 else
2070 {
2071 network->bWithAironetIE = false;
2072 network->bCkipSupported = false;
2073 }
2074 break;
2075 case MFIE_TYPE_QOS_PARAMETER:
2076 printk(KERN_ERR
2077 "QoS Error need to parse QOS_PARAMETER IE\n");
2078 break;
2079
2080 case MFIE_TYPE_COUNTRY:
2081 IEEE80211_DEBUG_SCAN("MFIE_TYPE_COUNTRY: %d bytes\n",
2082 info_element->len);
2083
2084 ieee80211_extract_country_ie(ieee, info_element, network, network->bssid);
2085 break;
2086
2087 default:
2088 IEEE80211_DEBUG_MGMT
2089 ("Unsupported info element: %s (%d)\n",
2090 get_info_element_string(info_element->id),
2091 info_element->id);
2092 break;
2093 }
2094
2095 length -= sizeof(*info_element) + info_element->len;
2096 info_element =
2097 (struct ieee80211_info_element *)&info_element->
2098 data[info_element->len];
2099 }
2100
2101 if(!network->atheros_cap_exist && !network->broadcom_cap_exist &&
2102 !network->cisco_cap_exist && !network->ralink_cap_exist && !network->bssht.bdRT2RTAggregation)
2103 {
2104 network->unknown_cap_exist = true;
2105 }
2106 else
2107 {
2108 network->unknown_cap_exist = false;
2109 }
2110 return 0;
2111}
2112
2113static inline u8 ieee80211_SignalStrengthTranslate(
2114 u8 CurrSS
2115 )
2116{
2117 u8 RetSS;
2118
2119
2120 if(CurrSS >= 71 && CurrSS <= 100)
2121 {
2122 RetSS = 90 + ((CurrSS - 70) / 3);
2123 }
2124 else if(CurrSS >= 41 && CurrSS <= 70)
2125 {
2126 RetSS = 78 + ((CurrSS - 40) / 3);
2127 }
2128 else if(CurrSS >= 31 && CurrSS <= 40)
2129 {
2130 RetSS = 66 + (CurrSS - 30);
2131 }
2132 else if(CurrSS >= 21 && CurrSS <= 30)
2133 {
2134 RetSS = 54 + (CurrSS - 20);
2135 }
2136 else if(CurrSS >= 5 && CurrSS <= 20)
2137 {
2138 RetSS = 42 + (((CurrSS - 5) * 2) / 3);
2139 }
2140 else if(CurrSS == 4)
2141 {
2142 RetSS = 36;
2143 }
2144 else if(CurrSS == 3)
2145 {
2146 RetSS = 27;
2147 }
2148 else if(CurrSS == 2)
2149 {
2150 RetSS = 18;
2151 }
2152 else if(CurrSS == 1)
2153 {
2154 RetSS = 9;
2155 }
2156 else
2157 {
2158 RetSS = CurrSS;
2159 }
2160
2161
2162
2163
2164
2165
2166 return RetSS;
2167}
2168
2169long ieee80211_translate_todbm(u8 signal_strength_index )
2170{
2171 long signal_power;
2172
2173
2174 signal_power = (long)((signal_strength_index + 1) >> 1);
2175 signal_power -= 95;
2176
2177 return signal_power;
2178}
2179
2180static inline int ieee80211_network_init(
2181 struct ieee80211_device *ieee,
2182 struct ieee80211_probe_response *beacon,
2183 struct ieee80211_network *network,
2184 struct ieee80211_rx_stats *stats)
2185{
2186#ifdef CONFIG_IEEE80211_DEBUG
2187
2188
2189#endif
2190
2191 network->qos_data.active = 0;
2192 network->qos_data.supported = 0;
2193 network->qos_data.param_count = 0;
2194 network->qos_data.old_param_count = 0;
2195
2196
2197 memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
2198 network->capability = le16_to_cpu(beacon->capability);
2199 network->last_scanned = jiffies;
2200 network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
2201 network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
2202 network->beacon_interval = le32_to_cpu(beacon->beacon_interval);
2203
2204 network->listen_interval = 0x0A;
2205 network->rates_len = network->rates_ex_len = 0;
2206 network->last_associate = 0;
2207 network->ssid_len = 0;
2208 network->flags = 0;
2209 network->atim_window = 0;
2210 network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
2211 0x3 : 0x0;
2212 network->berp_info_valid = false;
2213 network->broadcom_cap_exist = false;
2214 network->ralink_cap_exist = false;
2215 network->atheros_cap_exist = false;
2216 network->cisco_cap_exist = false;
2217 network->unknown_cap_exist = false;
2218#ifdef THOMAS_TURBO
2219 network->Turbo_Enable = 0;
2220#endif
2221 network->CountryIeLen = 0;
2222 memset(network->CountryIeBuf, 0, MAX_IE_LEN);
2223
2224
2225 HTInitializeBssDesc(&network->bssht);
2226 if (stats->freq == IEEE80211_52GHZ_BAND) {
2227
2228 network->channel = stats->received_channel;
2229 } else
2230 network->flags |= NETWORK_HAS_CCK;
2231
2232 network->wpa_ie_len = 0;
2233 network->rsn_ie_len = 0;
2234
2235 if (ieee80211_parse_info_param
2236 (ieee,beacon->info_element, stats->len - sizeof(*beacon), network, stats))
2237 return 1;
2238
2239 network->mode = 0;
2240 if (stats->freq == IEEE80211_52GHZ_BAND)
2241 network->mode = IEEE_A;
2242 else {
2243 if (network->flags & NETWORK_HAS_OFDM)
2244 network->mode |= IEEE_G;
2245 if (network->flags & NETWORK_HAS_CCK)
2246 network->mode |= IEEE_B;
2247 }
2248
2249 if (network->mode == 0) {
2250 IEEE80211_DEBUG_SCAN("Filtered out '%s (%pM)' "
2251 "network.\n",
2252 escape_essid(network->ssid,
2253 network->ssid_len),
2254 network->bssid);
2255 return 1;
2256 }
2257
2258 if(network->bssht.bdSupportHT){
2259 if(network->mode == IEEE_A)
2260 network->mode = IEEE_N_5G;
2261 else if(network->mode & (IEEE_G | IEEE_B))
2262 network->mode = IEEE_N_24G;
2263 }
2264 if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
2265 network->flags |= NETWORK_EMPTY_ESSID;
2266
2267 stats->signal = 30 + (stats->SignalStrength * 70) / 100;
2268
2269 stats->noise = ieee80211_translate_todbm((u8)(100-stats->signal)) -25;
2270
2271 memcpy(&network->stats, stats, sizeof(network->stats));
2272
2273 return 0;
2274}
2275
2276static inline int is_same_network(struct ieee80211_network *src,
2277 struct ieee80211_network *dst, struct ieee80211_device *ieee)
2278{
2279
2280
2281
2282
2283 return
2284 (((src->ssid_len == dst->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2285 (src->channel == dst->channel) &&
2286 !memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
2287
2288 (!memcmp(src->ssid, dst->ssid, src->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2289 ((src->capability & WLAN_CAPABILITY_IBSS) ==
2290 (dst->capability & WLAN_CAPABILITY_IBSS)) &&
2291 ((src->capability & WLAN_CAPABILITY_BSS) ==
2292 (dst->capability & WLAN_CAPABILITY_BSS)));
2293}
2294
2295static inline void update_network(struct ieee80211_network *dst,
2296 struct ieee80211_network *src)
2297{
2298 int qos_active;
2299 u8 old_param;
2300
2301 memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
2302 dst->capability = src->capability;
2303 memcpy(dst->rates, src->rates, src->rates_len);
2304 dst->rates_len = src->rates_len;
2305 memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len);
2306 dst->rates_ex_len = src->rates_ex_len;
2307 if(src->ssid_len > 0)
2308 {
2309 memset(dst->ssid, 0, dst->ssid_len);
2310 dst->ssid_len = src->ssid_len;
2311 memcpy(dst->ssid, src->ssid, src->ssid_len);
2312 }
2313 dst->mode = src->mode;
2314 dst->flags = src->flags;
2315 dst->time_stamp[0] = src->time_stamp[0];
2316 dst->time_stamp[1] = src->time_stamp[1];
2317 if (src->flags & NETWORK_HAS_ERP_VALUE)
2318 {
2319 dst->erp_value = src->erp_value;
2320 dst->berp_info_valid = src->berp_info_valid = true;
2321 }
2322 dst->beacon_interval = src->beacon_interval;
2323 dst->listen_interval = src->listen_interval;
2324 dst->atim_window = src->atim_window;
2325 dst->dtim_period = src->dtim_period;
2326 dst->dtim_data = src->dtim_data;
2327 dst->last_dtim_sta_time[0] = src->last_dtim_sta_time[0];
2328 dst->last_dtim_sta_time[1] = src->last_dtim_sta_time[1];
2329 memcpy(&dst->tim, &src->tim, sizeof(struct ieee80211_tim_parameters));
2330
2331 dst->bssht.bdSupportHT = src->bssht.bdSupportHT;
2332 dst->bssht.bdRT2RTAggregation = src->bssht.bdRT2RTAggregation;
2333 dst->bssht.bdHTCapLen= src->bssht.bdHTCapLen;
2334 memcpy(dst->bssht.bdHTCapBuf,src->bssht.bdHTCapBuf,src->bssht.bdHTCapLen);
2335 dst->bssht.bdHTInfoLen= src->bssht.bdHTInfoLen;
2336 memcpy(dst->bssht.bdHTInfoBuf,src->bssht.bdHTInfoBuf,src->bssht.bdHTInfoLen);
2337 dst->bssht.bdHTSpecVer = src->bssht.bdHTSpecVer;
2338 dst->bssht.bdRT2RTLongSlotTime = src->bssht.bdRT2RTLongSlotTime;
2339 dst->broadcom_cap_exist = src->broadcom_cap_exist;
2340 dst->ralink_cap_exist = src->ralink_cap_exist;
2341 dst->atheros_cap_exist = src->atheros_cap_exist;
2342 dst->cisco_cap_exist = src->cisco_cap_exist;
2343 dst->unknown_cap_exist = src->unknown_cap_exist;
2344 memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
2345 dst->wpa_ie_len = src->wpa_ie_len;
2346 memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len);
2347 dst->rsn_ie_len = src->rsn_ie_len;
2348
2349 dst->last_scanned = jiffies;
2350
2351
2352 qos_active = dst->qos_data.active;
2353
2354 old_param = dst->qos_data.param_count;
2355 if(dst->flags & NETWORK_HAS_QOS_MASK)
2356 memcpy(&dst->qos_data, &src->qos_data,
2357 sizeof(struct ieee80211_qos_data));
2358 else {
2359 dst->qos_data.supported = src->qos_data.supported;
2360 dst->qos_data.param_count = src->qos_data.param_count;
2361 }
2362
2363 if(dst->qos_data.supported == 1) {
2364 dst->QoS_Enable = 1;
2365 if(dst->ssid_len)
2366 IEEE80211_DEBUG_QOS
2367 ("QoS the network %s is QoS supported\n",
2368 dst->ssid);
2369 else
2370 IEEE80211_DEBUG_QOS
2371 ("QoS the network is QoS supported\n");
2372 }
2373 dst->qos_data.active = qos_active;
2374 dst->qos_data.old_param_count = old_param;
2375
2376
2377 dst->wmm_info = src->wmm_info;
2378 if(src->wmm_param[0].ac_aci_acm_aifsn|| \
2379 src->wmm_param[1].ac_aci_acm_aifsn|| \
2380 src->wmm_param[2].ac_aci_acm_aifsn|| \
2381 src->wmm_param[3].ac_aci_acm_aifsn) {
2382 memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN);
2383 }
2384
2385#ifdef THOMAS_TURBO
2386 dst->Turbo_Enable = src->Turbo_Enable;
2387#endif
2388
2389 dst->CountryIeLen = src->CountryIeLen;
2390 memcpy(dst->CountryIeBuf, src->CountryIeBuf, src->CountryIeLen);
2391
2392
2393 dst->bWithAironetIE = src->bWithAironetIE;
2394 dst->bCkipSupported = src->bCkipSupported;
2395 memcpy(dst->CcxRmState,src->CcxRmState,2);
2396 dst->bCcxRmEnable = src->bCcxRmEnable;
2397 dst->MBssidMask = src->MBssidMask;
2398 dst->bMBssidValid = src->bMBssidValid;
2399 memcpy(dst->MBssid,src->MBssid,6);
2400 dst->bWithCcxVerNum = src->bWithCcxVerNum;
2401 dst->BssCcxVerNumber = src->BssCcxVerNumber;
2402
2403}
2404
2405static inline int is_beacon(__le16 fc)
2406{
2407 return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
2408}
2409
2410static inline void ieee80211_process_probe_response(
2411 struct ieee80211_device *ieee,
2412 struct ieee80211_probe_response *beacon,
2413 struct ieee80211_rx_stats *stats)
2414{
2415 struct ieee80211_network network;
2416 struct ieee80211_network *target;
2417 struct ieee80211_network *oldest = NULL;
2418#ifdef CONFIG_IEEE80211_DEBUG
2419 struct ieee80211_info_element *info_element = &beacon->info_element[0];
2420#endif
2421 unsigned long flags;
2422 short renew;
2423
2424
2425 memset(&network, 0, sizeof(struct ieee80211_network));
2426 IEEE80211_DEBUG_SCAN(
2427 "'%s' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
2428 escape_essid(info_element->data, info_element->len),
2429 beacon->header.addr3,
2430 (beacon->capability & (1<<0xf)) ? '1' : '0',
2431 (beacon->capability & (1<<0xe)) ? '1' : '0',
2432 (beacon->capability & (1<<0xd)) ? '1' : '0',
2433 (beacon->capability & (1<<0xc)) ? '1' : '0',
2434 (beacon->capability & (1<<0xb)) ? '1' : '0',
2435 (beacon->capability & (1<<0xa)) ? '1' : '0',
2436 (beacon->capability & (1<<0x9)) ? '1' : '0',
2437 (beacon->capability & (1<<0x8)) ? '1' : '0',
2438 (beacon->capability & (1<<0x7)) ? '1' : '0',
2439 (beacon->capability & (1<<0x6)) ? '1' : '0',
2440 (beacon->capability & (1<<0x5)) ? '1' : '0',
2441 (beacon->capability & (1<<0x4)) ? '1' : '0',
2442 (beacon->capability & (1<<0x3)) ? '1' : '0',
2443 (beacon->capability & (1<<0x2)) ? '1' : '0',
2444 (beacon->capability & (1<<0x1)) ? '1' : '0',
2445 (beacon->capability & (1<<0x0)) ? '1' : '0');
2446
2447 if (ieee80211_network_init(ieee, beacon, &network, stats)) {
2448 IEEE80211_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n",
2449 escape_essid(info_element->data,
2450 info_element->len),
2451 beacon->header.addr3,
2452 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2453 IEEE80211_STYPE_PROBE_RESP ?
2454 "PROBE RESPONSE" : "BEACON");
2455 return;
2456 }
2457
2458
2459
2460
2461
2462
2463
2464
2465 if( !IsLegalChannel(ieee, network.channel) )
2466 return;
2467 if(ieee->bGlobalDomain)
2468 {
2469 if (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_PROBE_RESP)
2470 {
2471
2472 if(IS_COUNTRY_IE_VALID(ieee) )
2473 {
2474 if( !IsLegalChannel(ieee, network.channel) )
2475 {
2476 printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network.channel);
2477 return;
2478 }
2479 }
2480
2481 else
2482 {
2483
2484 if(network.channel > 11)
2485 {
2486 printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network.channel);
2487 return;
2488 }
2489 }
2490 }
2491 else
2492 {
2493
2494 if(IS_COUNTRY_IE_VALID(ieee) )
2495 {
2496 if( !IsLegalChannel(ieee, network.channel) )
2497 {
2498 printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n",network.channel);
2499 return;
2500 }
2501 }
2502
2503 else
2504 {
2505
2506 if(network.channel > 14)
2507 {
2508 printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n",network.channel);
2509 return;
2510 }
2511 }
2512 }
2513 }
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525 spin_lock_irqsave(&ieee->lock, flags);
2526
2527 if(is_same_network(&ieee->current_network, &network, ieee)) {
2528 update_network(&ieee->current_network, &network);
2529 if((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
2530 && ieee->current_network.berp_info_valid){
2531 if(ieee->current_network.erp_value& ERP_UseProtection)
2532 ieee->current_network.buseprotection = true;
2533 else
2534 ieee->current_network.buseprotection = false;
2535 }
2536 if(is_beacon(beacon->header.frame_ctl))
2537 {
2538 if(ieee->state == IEEE80211_LINKED)
2539 ieee->LinkDetectInfo.NumRecvBcnInPeriod++;
2540 }
2541 else
2542 network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & ieee->current_network.flags);
2543 }
2544
2545 list_for_each_entry(target, &ieee->network_list, list) {
2546 if (is_same_network(target, &network, ieee))
2547 break;
2548 if ((oldest == NULL) ||
2549 (target->last_scanned < oldest->last_scanned))
2550 oldest = target;
2551 }
2552
2553
2554
2555 if (&target->list == &ieee->network_list) {
2556 if (list_empty(&ieee->network_free_list)) {
2557
2558 list_del(&oldest->list);
2559 target = oldest;
2560 IEEE80211_DEBUG_SCAN("Expired '%s' (%pM) from "
2561 "network list.\n",
2562 escape_essid(target->ssid,
2563 target->ssid_len),
2564 target->bssid);
2565 } else {
2566
2567 target = list_entry(ieee->network_free_list.next,
2568 struct ieee80211_network, list);
2569 list_del(ieee->network_free_list.next);
2570 }
2571
2572
2573#ifdef CONFIG_IEEE80211_DEBUG
2574 IEEE80211_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n",
2575 escape_essid(network.ssid,
2576 network.ssid_len),
2577 network.bssid,
2578 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2579 IEEE80211_STYPE_PROBE_RESP ?
2580 "PROBE RESPONSE" : "BEACON");
2581#endif
2582 memcpy(target, &network, sizeof(*target));
2583 list_add_tail(&target->list, &ieee->network_list);
2584 if(ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE)
2585 ieee80211_softmac_new_net(ieee,&network);
2586 } else {
2587 IEEE80211_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n",
2588 escape_essid(target->ssid,
2589 target->ssid_len),
2590 target->bssid,
2591 WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
2592 IEEE80211_STYPE_PROBE_RESP ?
2593 "PROBE RESPONSE" : "BEACON");
2594
2595
2596
2597
2598
2599 renew = !time_after(target->last_scanned + ieee->scan_age, jiffies);
2600
2601 if(is_beacon(beacon->header.frame_ctl) == 0)
2602 network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & target->flags);
2603
2604
2605 if(((network.flags & NETWORK_EMPTY_ESSID) == NETWORK_EMPTY_ESSID) \
2606 && (((network.ssid_len > 0) && (strncmp(target->ssid, network.ssid, network.ssid_len)))\
2607 ||((ieee->current_network.ssid_len == network.ssid_len)&&(strncmp(ieee->current_network.ssid, network.ssid, network.ssid_len) == 0)&&(ieee->state == IEEE80211_NOLINK))))
2608 renew = 1;
2609
2610
2611 update_network(target, &network);
2612 if(renew && (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE))
2613 ieee80211_softmac_new_net(ieee,&network);
2614 }
2615
2616 spin_unlock_irqrestore(&ieee->lock, flags);
2617 if (is_beacon(beacon->header.frame_ctl)&&is_same_network(&ieee->current_network, &network, ieee)&&\
2618 (ieee->state == IEEE80211_LINKED)) {
2619 if(ieee->handle_beacon != NULL) {
2620 ieee->handle_beacon(ieee->dev,beacon,&ieee->current_network);
2621 }
2622 }
2623}
2624
2625void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2626 struct ieee80211_hdr_4addr *header,
2627 struct ieee80211_rx_stats *stats)
2628{
2629 switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
2630
2631 case IEEE80211_STYPE_BEACON:
2632 IEEE80211_DEBUG_MGMT("received BEACON (%d)\n",
2633 WLAN_FC_GET_STYPE(header->frame_ctl));
2634 IEEE80211_DEBUG_SCAN("Beacon\n");
2635 ieee80211_process_probe_response(
2636 ieee, (struct ieee80211_probe_response *)header, stats);
2637 break;
2638
2639 case IEEE80211_STYPE_PROBE_RESP:
2640 IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n",
2641 WLAN_FC_GET_STYPE(header->frame_ctl));
2642 IEEE80211_DEBUG_SCAN("Probe response\n");
2643 ieee80211_process_probe_response(
2644 ieee, (struct ieee80211_probe_response *)header, stats);
2645 break;
2646
2647 }
2648}
2649
2650EXPORT_SYMBOL(ieee80211_rx_mgt);
2651EXPORT_SYMBOL(ieee80211_rx);
2652
