This source file includes following definitions.
- ieee80211_monitor_rx
- ieee80211_frag_cache_find
- ieee80211_frag_cache_get
- ieee80211_frag_cache_invalidate
- ieee80211_rx_frame_mgmt
- ieee80211_is_eapol_frame
- ieee80211_rx_frame_decrypt
- ieee80211_rx_frame_decrypt_msdu
- is_duplicate_packet
- AddReorderEntry
- ieee80211_indicate_packets
- RxReorderIndicatePacket
- parse_subframe
- ieee80211_rx
- ieee80211_verify_qos_info
- ieee80211_read_qos_param_element
- ieee80211_read_qos_info_element
- ieee80211_qos_convert_ac_to_parameters
- ieee80211_parse_qos_info_param_IE
- get_info_element_string
- ieee80211_extract_country_ie
- ieee80211_parse_info_param
- ieee80211_SignalStrengthTranslate
- ieee80211_translate_todbm
- ieee80211_network_init
- is_same_network
- update_network
- is_beacon
- ieee80211_process_probe_response
- ieee80211_rx_mgt
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20 #include <linux/compiler.h>
21 #include <linux/errno.h>
22 #include <linux/if_arp.h>
23 #include <linux/in6.h>
24 #include <linux/in.h>
25 #include <linux/ip.h>
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/netdevice.h>
29 #include <linux/pci.h>
30 #include <linux/proc_fs.h>
31 #include <linux/skbuff.h>
32 #include <linux/slab.h>
33 #include <linux/tcp.h>
34 #include <linux/types.h>
35 #include <linux/wireless.h>
36 #include <linux/etherdevice.h>
37 #include <linux/uaccess.h>
38 #include <linux/ctype.h>
39
40 #include "ieee80211.h"
41 #include "dot11d.h"
42 static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
43 struct sk_buff *skb,
44 struct ieee80211_rx_stats *rx_stats)
45 {
46 struct rtl_80211_hdr_4addr *hdr = (struct rtl_80211_hdr_4addr *)skb->data;
47 u16 fc = le16_to_cpu(hdr->frame_ctl);
48
49 skb->dev = ieee->dev;
50 skb_reset_mac_header(skb);
51
52 skb_pull(skb, ieee80211_get_hdrlen(fc));
53 skb->pkt_type = PACKET_OTHERHOST;
54 skb->protocol = htons(ETH_P_80211_RAW);
55 memset(skb->cb, 0, sizeof(skb->cb));
56 netif_rx(skb);
57 }
58
59
60
61 static struct ieee80211_frag_entry *
62 ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq,
63 unsigned int frag, u8 tid, u8 *src, u8 *dst)
64 {
65 struct ieee80211_frag_entry *entry;
66 int i;
67
68 for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) {
69 entry = &ieee->frag_cache[tid][i];
70 if (entry->skb &&
71 time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
72 IEEE80211_DEBUG_FRAG(
73 "expiring fragment cache entry "
74 "seq=%u last_frag=%u\n",
75 entry->seq, entry->last_frag);
76 dev_kfree_skb_any(entry->skb);
77 entry->skb = NULL;
78 }
79
80 if (entry->skb && entry->seq == seq &&
81 (entry->last_frag + 1 == frag || frag == -1) &&
82 memcmp(entry->src_addr, src, ETH_ALEN) == 0 &&
83 memcmp(entry->dst_addr, dst, ETH_ALEN) == 0)
84 return entry;
85 }
86
87 return NULL;
88 }
89
90
91 static struct sk_buff *
92 ieee80211_frag_cache_get(struct ieee80211_device *ieee,
93 struct rtl_80211_hdr_4addr *hdr)
94 {
95 struct sk_buff *skb = NULL;
96 u16 fc = le16_to_cpu(hdr->frame_ctl);
97 u16 sc = le16_to_cpu(hdr->seq_ctl);
98 unsigned int frag = WLAN_GET_SEQ_FRAG(sc);
99 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
100 struct ieee80211_frag_entry *entry;
101 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
102 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
103 u8 tid;
104
105 if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) {
106 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr;
107 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
108 tid = UP2AC(tid);
109 tid++;
110 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
111 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr;
112 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
113 tid = UP2AC(tid);
114 tid++;
115 } else {
116 tid = 0;
117 }
118
119 if (frag == 0) {
120
121 skb = dev_alloc_skb(ieee->dev->mtu +
122 sizeof(struct rtl_80211_hdr_4addr) +
123 8 +
124 2 +
125 8 +
126 ETH_ALEN +
127 (IEEE80211_QOS_HAS_SEQ(fc) ? 2 : 0) );
128 if (!skb)
129 return NULL;
130
131 entry = &ieee->frag_cache[tid][ieee->frag_next_idx[tid]];
132 ieee->frag_next_idx[tid]++;
133 if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN)
134 ieee->frag_next_idx[tid] = 0;
135
136 if (entry->skb)
137 dev_kfree_skb_any(entry->skb);
138
139 entry->first_frag_time = jiffies;
140 entry->seq = seq;
141 entry->last_frag = frag;
142 entry->skb = skb;
143 memcpy(entry->src_addr, hdr->addr2, ETH_ALEN);
144 memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN);
145 } else {
146
147
148 entry = ieee80211_frag_cache_find(ieee, seq, frag, tid, hdr->addr2,
149 hdr->addr1);
150 if (entry) {
151 entry->last_frag = frag;
152 skb = entry->skb;
153 }
154 }
155
156 return skb;
157 }
158
159
160
161 static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
162 struct rtl_80211_hdr_4addr *hdr)
163 {
164 u16 fc = le16_to_cpu(hdr->frame_ctl);
165 u16 sc = le16_to_cpu(hdr->seq_ctl);
166 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
167 struct ieee80211_frag_entry *entry;
168 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
169 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
170 u8 tid;
171
172 if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) {
173 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr;
174 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
175 tid = UP2AC(tid);
176 tid++;
177 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
178 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr;
179 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
180 tid = UP2AC(tid);
181 tid++;
182 } else {
183 tid = 0;
184 }
185
186 entry = ieee80211_frag_cache_find(ieee, seq, -1, tid, hdr->addr2,
187 hdr->addr1);
188
189 if (!entry) {
190 IEEE80211_DEBUG_FRAG(
191 "could not invalidate fragment cache "
192 "entry (seq=%u)\n", seq);
193 return -1;
194 }
195
196 entry->skb = NULL;
197 return 0;
198 }
199
200
201
202
203
204
205
206
207 static inline int
208 ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
209 struct ieee80211_rx_stats *rx_stats, u16 type,
210 u16 stype)
211 {
212
213
214
215
216 struct rtl_80211_hdr_3addr *hdr = (struct rtl_80211_hdr_3addr *)skb->data;
217
218 rx_stats->len = skb->len;
219 ieee80211_rx_mgt(ieee, (struct rtl_80211_hdr_4addr *)skb->data, rx_stats);
220
221 if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN))) {
222
223 dev_kfree_skb_any(skb);
224 return 0;
225 }
226
227 ieee80211_rx_frame_softmac(ieee, skb, rx_stats, type, stype);
228
229 dev_kfree_skb_any(skb);
230
231 return 0;
232
233 #ifdef NOT_YET
234 if (ieee->iw_mode == IW_MODE_MASTER) {
235 printk(KERN_DEBUG "%s: Master mode not yet supported.\n",
236 ieee->dev->name);
237 return 0;
238
239
240
241 }
242
243 if (ieee->hostapd && type == IEEE80211_TYPE_MGMT) {
244 if (stype == WLAN_FC_STYPE_BEACON &&
245 ieee->iw_mode == IW_MODE_MASTER) {
246 struct sk_buff *skb2;
247
248
249 skb2 = skb_clone(skb, GFP_ATOMIC);
250 if (skb2)
251 hostap_rx(skb2->dev, skb2, rx_stats);
252 }
253
254
255
256 ieee->apdevstats.rx_packets++;
257 ieee->apdevstats.rx_bytes += skb->len;
258 prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT);
259 return 0;
260 }
261
262 if (ieee->iw_mode == IW_MODE_MASTER) {
263 if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) {
264 printk(KERN_DEBUG "%s: unknown management frame "
265 "(type=0x%02x, stype=0x%02x) dropped\n",
266 skb->dev->name, type, stype);
267 return -1;
268 }
269
270 hostap_rx(skb->dev, skb, rx_stats);
271 return 0;
272 }
273
274 printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame "
275 "received in non-Host AP mode\n", skb->dev->name);
276 return -1;
277 #endif
278 }
279
280
281
282
283
284 static unsigned char rfc1042_header[] = {
285 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
286
287 static unsigned char bridge_tunnel_header[] = {
288 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
289
290
291
292 static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
293 struct sk_buff *skb, size_t hdrlen)
294 {
295 struct net_device *dev = ieee->dev;
296 u16 fc, ethertype;
297 struct rtl_80211_hdr_4addr *hdr;
298 u8 *pos;
299
300 if (skb->len < 24)
301 return 0;
302
303 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
304 fc = le16_to_cpu(hdr->frame_ctl);
305
306
307 if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
308 IEEE80211_FCTL_TODS &&
309 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 &&
310 memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) {
311
312 } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
313 IEEE80211_FCTL_FROMDS &&
314 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) {
315
316 } else
317 return 0;
318
319 if (skb->len < 24 + 8)
320 return 0;
321
322
323
324 pos = skb->data + hdrlen;
325 ethertype = (pos[6] << 8) | pos[7];
326 if (ethertype == ETH_P_PAE)
327 return 1;
328
329 return 0;
330 }
331
332
333 static inline int
334 ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
335 struct ieee80211_crypt_data *crypt)
336 {
337 struct rtl_80211_hdr_4addr *hdr;
338 int res, hdrlen;
339
340 if (!crypt || !crypt->ops->decrypt_mpdu)
341 return 0;
342 if (ieee->hwsec_active) {
343 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
344 tcb_desc->bHwSec = 1;
345 }
346 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
347 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
348
349 if (ieee->tkip_countermeasures &&
350 strcmp(crypt->ops->name, "TKIP") == 0) {
351 if (net_ratelimit()) {
352 printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
353 "received packet from %pM\n",
354 ieee->dev->name, hdr->addr2);
355 }
356 return -1;
357 }
358
359 atomic_inc(&crypt->refcnt);
360 res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv);
361 atomic_dec(&crypt->refcnt);
362 if (res < 0) {
363 IEEE80211_DEBUG_DROP(
364 "decryption failed (SA=%pM"
365 ") res=%d\n", hdr->addr2, res);
366 if (res == -2)
367 IEEE80211_DEBUG_DROP("Decryption failed ICV "
368 "mismatch (key %d)\n",
369 skb->data[hdrlen + 3] >> 6);
370 ieee->ieee_stats.rx_discards_undecryptable++;
371 return -1;
372 }
373
374 return res;
375 }
376
377
378
379 static inline int
380 ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee, struct sk_buff *skb,
381 int keyidx, struct ieee80211_crypt_data *crypt)
382 {
383 struct rtl_80211_hdr_4addr *hdr;
384 int res, hdrlen;
385
386 if (!crypt || !crypt->ops->decrypt_msdu)
387 return 0;
388 if (ieee->hwsec_active) {
389 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
390 tcb_desc->bHwSec = 1;
391 }
392
393 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
394 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
395
396 atomic_inc(&crypt->refcnt);
397 res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv);
398 atomic_dec(&crypt->refcnt);
399 if (res < 0) {
400 printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed"
401 " (SA=%pM keyidx=%d)\n",
402 ieee->dev->name, hdr->addr2, keyidx);
403 return -1;
404 }
405
406 return 0;
407 }
408
409
410
411 #define IEEE_PACKET_RETRY_TIME (5 * HZ)
412 static int is_duplicate_packet(struct ieee80211_device *ieee,
413 struct rtl_80211_hdr_4addr *header)
414 {
415 u16 fc = le16_to_cpu(header->frame_ctl);
416 u16 sc = le16_to_cpu(header->seq_ctl);
417 u16 seq = WLAN_GET_SEQ_SEQ(sc);
418 u16 frag = WLAN_GET_SEQ_FRAG(sc);
419 u16 *last_seq, *last_frag;
420 unsigned long *last_time;
421 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
422 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
423 u8 tid;
424
425
426
427 if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) {
428 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)header;
429 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
430 tid = UP2AC(tid);
431 tid++;
432 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
433 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)header;
434 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
435 tid = UP2AC(tid);
436 tid++;
437 } else {
438 tid = 0;
439 }
440
441 switch (ieee->iw_mode) {
442 case IW_MODE_ADHOC:
443 {
444 struct list_head *p;
445 struct ieee_ibss_seq *entry = NULL;
446 u8 *mac = header->addr2;
447 int index = mac[5] % IEEE_IBSS_MAC_HASH_SIZE;
448
449 list_for_each(p, &ieee->ibss_mac_hash[index]) {
450 entry = list_entry(p, struct ieee_ibss_seq, list);
451 if (!memcmp(entry->mac, mac, ETH_ALEN))
452 break;
453 }
454
455 if (p == &ieee->ibss_mac_hash[index]) {
456 entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
457 if (!entry)
458 return 0;
459 memcpy(entry->mac, mac, ETH_ALEN);
460 entry->seq_num[tid] = seq;
461 entry->frag_num[tid] = frag;
462 entry->packet_time[tid] = jiffies;
463 list_add(&entry->list, &ieee->ibss_mac_hash[index]);
464 return 0;
465 }
466 last_seq = &entry->seq_num[tid];
467 last_frag = &entry->frag_num[tid];
468 last_time = &entry->packet_time[tid];
469 break;
470 }
471
472 case IW_MODE_INFRA:
473 last_seq = &ieee->last_rxseq_num[tid];
474 last_frag = &ieee->last_rxfrag_num[tid];
475 last_time = &ieee->last_packet_time[tid];
476
477 break;
478 default:
479 return 0;
480 }
481
482
483
484
485 if ((*last_seq == seq) &&
486 time_after(*last_time + IEEE_PACKET_RETRY_TIME, jiffies)) {
487 if (*last_frag == frag)
488 goto drop;
489 if (*last_frag + 1 != frag)
490
491 goto drop;
492 } else
493 *last_seq = seq;
494
495 *last_frag = frag;
496 *last_time = jiffies;
497 return 0;
498
499 drop:
500
501
502 return 1;
503 }
504
505 static bool AddReorderEntry(struct rx_ts_record *pTS, struct rx_reorder_entry *pReorderEntry)
506 {
507 struct list_head *pList = &pTS->rx_pending_pkt_list;
508 while (pList->next != &pTS->rx_pending_pkt_list) {
509 if (SN_LESS(pReorderEntry->SeqNum, list_entry(pList->next, struct rx_reorder_entry, List)->SeqNum))
510 pList = pList->next;
511 else if (SN_EQUAL(pReorderEntry->SeqNum, list_entry(pList->next, struct rx_reorder_entry, List)->SeqNum))
512 return false;
513 else
514 break;
515 }
516 pReorderEntry->List.next = pList->next;
517 pReorderEntry->List.next->prev = &pReorderEntry->List;
518 pReorderEntry->List.prev = pList;
519 pList->next = &pReorderEntry->List;
520
521 return true;
522 }
523
524 void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_rxb **prxbIndicateArray, u8 index)
525 {
526 u8 i = 0, j = 0;
527 u16 ethertype;
528
529
530 for (j = 0; j < index; j++) {
531
532 struct ieee80211_rxb *prxb = prxbIndicateArray[j];
533 for (i = 0; i < prxb->nr_subframes; i++) {
534 struct sk_buff *sub_skb = prxb->subframes[i];
535
536
537 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
538 if (sub_skb->len >= 8 &&
539 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
540 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
541 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
542
543
544 skb_pull(sub_skb, SNAP_SIZE);
545 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
546 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
547 } else {
548
549 put_unaligned_be16(sub_skb->len, skb_push(sub_skb, 2));
550 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
551 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
552 }
553
554
555
556
557 if (sub_skb) {
558 sub_skb->protocol = eth_type_trans(sub_skb, ieee->dev);
559 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
560 sub_skb->dev = ieee->dev;
561 sub_skb->ip_summed = CHECKSUM_NONE;
562
563 ieee->last_rx_ps_time = jiffies;
564 netif_rx(sub_skb);
565 }
566 }
567 kfree(prxb);
568 prxb = NULL;
569 }
570 }
571
572
573 static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
574 struct ieee80211_rxb *prxb,
575 struct rx_ts_record *pTS, u16 SeqNum)
576 {
577 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
578 struct rx_reorder_entry *pReorderEntry = NULL;
579 struct ieee80211_rxb **prxbIndicateArray;
580 u8 WinSize = pHTInfo->RxReorderWinSize;
581 u16 WinEnd = (pTS->rx_indicate_seq + WinSize - 1) % 4096;
582 u8 index = 0;
583 bool bMatchWinStart = false, bPktInBuf = false;
584 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): Seq is %d,pTS->rx_indicate_seq is %d, WinSize is %d\n", __func__, SeqNum, pTS->rx_indicate_seq, WinSize);
585
586 prxbIndicateArray = kmalloc_array(REORDER_WIN_SIZE,
587 sizeof(struct ieee80211_rxb *),
588 GFP_KERNEL);
589 if (!prxbIndicateArray)
590 return;
591
592
593 if (pTS->rx_indicate_seq == 0xffff)
594 pTS->rx_indicate_seq = SeqNum;
595
596
597 if (SN_LESS(SeqNum, pTS->rx_indicate_seq)) {
598 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packet Drop! IndicateSeq: %d, NewSeq: %d\n",
599 pTS->rx_indicate_seq, SeqNum);
600 pHTInfo->RxReorderDropCounter++;
601 {
602 int i;
603 for (i = 0; i < prxb->nr_subframes; i++) {
604 dev_kfree_skb(prxb->subframes[i]);
605 }
606 kfree(prxb);
607 prxb = NULL;
608 }
609
610 kfree(prxbIndicateArray);
611 return;
612 }
613
614
615
616
617
618
619 if (SN_EQUAL(SeqNum, pTS->rx_indicate_seq)) {
620 pTS->rx_indicate_seq = (pTS->rx_indicate_seq + 1) % 4096;
621 bMatchWinStart = true;
622 } else if (SN_LESS(WinEnd, SeqNum)) {
623 if (SeqNum >= (WinSize - 1)) {
624 pTS->rx_indicate_seq = SeqNum + 1 - WinSize;
625 } else {
626 pTS->rx_indicate_seq = 4095 - (WinSize - (SeqNum + 1)) + 1;
627 }
628 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Window Shift! IndicateSeq: %d, NewSeq: %d\n", pTS->rx_indicate_seq, SeqNum);
629 }
630
631
632
633
634
635
636
637
638
639
640 if (bMatchWinStart) {
641
642 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packets indication!! IndicateSeq: %d, NewSeq: %d\n",\
643 pTS->rx_indicate_seq, SeqNum);
644 prxbIndicateArray[0] = prxb;
645
646 index = 1;
647 } else {
648
649
650 if (!list_empty(&ieee->RxReorder_Unused_List)) {
651 pReorderEntry = list_entry(ieee->RxReorder_Unused_List.next, struct rx_reorder_entry, List);
652 list_del_init(&pReorderEntry->List);
653
654
655 pReorderEntry->SeqNum = SeqNum;
656 pReorderEntry->prxb = prxb;
657
658
659 if (!AddReorderEntry(pTS, pReorderEntry)) {
660 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n",
661 __func__, pTS->rx_indicate_seq, SeqNum);
662 list_add_tail(&pReorderEntry->List, &ieee->RxReorder_Unused_List);
663 {
664 int i;
665 for (i = 0; i < prxb->nr_subframes; i++) {
666 dev_kfree_skb(prxb->subframes[i]);
667 }
668 kfree(prxb);
669 prxb = NULL;
670 }
671 } else {
672 IEEE80211_DEBUG(IEEE80211_DL_REORDER,
673 "Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->rx_indicate_seq, SeqNum);
674 }
675 } else {
676
677
678
679
680
681 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): There is no reorder entry!! Packet is dropped!!\n");
682 {
683 int i;
684 for (i = 0; i < prxb->nr_subframes; i++) {
685 dev_kfree_skb(prxb->subframes[i]);
686 }
687 kfree(prxb);
688 prxb = NULL;
689 }
690 }
691 }
692
693
694 while (!list_empty(&pTS->rx_pending_pkt_list)) {
695 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): start RREORDER indicate\n", __func__);
696 pReorderEntry = list_entry(pTS->rx_pending_pkt_list.prev, struct rx_reorder_entry, List);
697 if (SN_LESS(pReorderEntry->SeqNum, pTS->rx_indicate_seq) ||
698 SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq)) {
699
700 if (index >= REORDER_WIN_SIZE) {
701 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n");
702 bPktInBuf = true;
703 break;
704 }
705
706 list_del_init(&pReorderEntry->List);
707
708 if (SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq))
709 pTS->rx_indicate_seq = (pTS->rx_indicate_seq + 1) % 4096;
710
711 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packets indication!! IndicateSeq: %d, NewSeq: %d\n", pTS->rx_indicate_seq, SeqNum);
712 prxbIndicateArray[index] = pReorderEntry->prxb;
713
714 index++;
715
716 list_add_tail(&pReorderEntry->List, &ieee->RxReorder_Unused_List);
717 } else {
718 bPktInBuf = true;
719 break;
720 }
721 }
722
723
724 if (index > 0) {
725
726
727 pTS->rx_timeout_indicate_seq = 0xffff;
728
729
730 if (index > REORDER_WIN_SIZE) {
731 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorder buffer full!! \n");
732 kfree(prxbIndicateArray);
733 return;
734 }
735 ieee80211_indicate_packets(ieee, prxbIndicateArray, index);
736 }
737
738 if (bPktInBuf && pTS->rx_timeout_indicate_seq == 0xffff) {
739
740 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): SET rx timeout timer\n", __func__);
741 pTS->rx_timeout_indicate_seq = pTS->rx_indicate_seq;
742 if (timer_pending(&pTS->rx_pkt_pending_timer))
743 del_timer_sync(&pTS->rx_pkt_pending_timer);
744 pTS->rx_pkt_pending_timer.expires = jiffies +
745 msecs_to_jiffies(pHTInfo->RxReorderPendingTime);
746 add_timer(&pTS->rx_pkt_pending_timer);
747 }
748
749 kfree(prxbIndicateArray);
750 }
751
752 static u8 parse_subframe(struct sk_buff *skb,
753 struct ieee80211_rx_stats *rx_stats,
754 struct ieee80211_rxb *rxb, u8 *src, u8 *dst)
755 {
756 struct rtl_80211_hdr_3addr *hdr = (struct rtl_80211_hdr_3addr *)skb->data;
757 u16 fc = le16_to_cpu(hdr->frame_ctl);
758
759 u16 LLCOffset = sizeof(struct rtl_80211_hdr_3addr);
760 u16 ChkLength;
761 bool bIsAggregateFrame = false;
762 u16 nSubframe_Length;
763 u8 nPadding_Length = 0;
764 u16 SeqNum = 0;
765
766 struct sk_buff *sub_skb;
767
768 SeqNum = WLAN_GET_SEQ_SEQ(le16_to_cpu(hdr->seq_ctl));
769
770 if ((IEEE80211_QOS_HAS_SEQ(fc)) && \
771 (((frameqos *)(skb->data + IEEE80211_3ADDR_LEN))->field.reserved)) {
772 bIsAggregateFrame = true;
773 }
774
775 if (IEEE80211_QOS_HAS_SEQ(fc)) {
776 LLCOffset += 2;
777 }
778
779 if (rx_stats->bContainHTC) {
780 LLCOffset += HTCLNG;
781 }
782
783 ChkLength = LLCOffset;
784
785 if (skb->len <= ChkLength)
786 return 0;
787
788 skb_pull(skb, LLCOffset);
789
790 if (!bIsAggregateFrame) {
791 rxb->nr_subframes = 1;
792 #ifdef JOHN_NOCPY
793 rxb->subframes[0] = skb;
794 #else
795 rxb->subframes[0] = skb_copy(skb, GFP_ATOMIC);
796 #endif
797
798 memcpy(rxb->src, src, ETH_ALEN);
799 memcpy(rxb->dst, dst, ETH_ALEN);
800
801 return 1;
802 } else {
803 rxb->nr_subframes = 0;
804 memcpy(rxb->src, src, ETH_ALEN);
805 memcpy(rxb->dst, dst, ETH_ALEN);
806 while (skb->len > ETHERNET_HEADER_SIZE) {
807
808 nSubframe_Length = *((u16 *)(skb->data + 12));
809
810 nSubframe_Length = (nSubframe_Length >> 8) + (nSubframe_Length << 8);
811
812 if (skb->len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
813 printk("%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
814 __func__, rxb->nr_subframes);
815 printk("%s: A-MSDU parse error!! Subframe Length: %d\n", __func__, nSubframe_Length);
816 printk("nRemain_Length is %d and nSubframe_Length is : %d\n", skb->len, nSubframe_Length);
817 printk("The Packet SeqNum is %d\n", SeqNum);
818 return 0;
819 }
820
821
822 skb_pull(skb, ETHERNET_HEADER_SIZE);
823
824 #ifdef JOHN_NOCPY
825 sub_skb = skb_clone(skb, GFP_ATOMIC);
826 sub_skb->len = nSubframe_Length;
827 sub_skb->tail = sub_skb->data + nSubframe_Length;
828 #else
829
830 sub_skb = dev_alloc_skb(nSubframe_Length + 12);
831 if (!sub_skb)
832 return 0;
833 skb_reserve(sub_skb, 12);
834 skb_put_data(sub_skb, skb->data, nSubframe_Length);
835 #endif
836 rxb->subframes[rxb->nr_subframes++] = sub_skb;
837 if (rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
838 IEEE80211_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
839 break;
840 }
841 skb_pull(skb, nSubframe_Length);
842
843 if (skb->len != 0) {
844 nPadding_Length = 4 - ((nSubframe_Length + ETHERNET_HEADER_SIZE) % 4);
845 if (nPadding_Length == 4) {
846 nPadding_Length = 0;
847 }
848
849 if (skb->len < nPadding_Length) {
850 return 0;
851 }
852
853 skb_pull(skb, nPadding_Length);
854 }
855 }
856 #ifdef JOHN_NOCPY
857 dev_kfree_skb(skb);
858 #endif
859
860
861
862 return rxb->nr_subframes;
863 }
864 }
865
866
867
868
869 int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
870 struct ieee80211_rx_stats *rx_stats)
871 {
872 struct net_device *dev = ieee->dev;
873 struct rtl_80211_hdr_4addr *hdr;
874
875
876 size_t hdrlen;
877 u16 fc, type, stype, sc;
878 struct net_device_stats *stats;
879 unsigned int frag;
880 u16 ethertype;
881
882 u8 TID = 0;
883 u16 SeqNum = 0;
884 struct rx_ts_record *pTS = NULL;
885
886
887 #ifdef NOT_YET
888 struct net_device *wds = NULL;
889 struct net_device *wds = NULL;
890 int from_assoc_ap = 0;
891 void *sta = NULL;
892 #endif
893
894 u8 dst[ETH_ALEN];
895 u8 src[ETH_ALEN];
896 u8 bssid[ETH_ALEN];
897 struct ieee80211_crypt_data *crypt = NULL;
898 int keyidx = 0;
899
900 int i;
901 struct ieee80211_rxb *rxb = NULL;
902
903 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
904 stats = &ieee->stats;
905
906 if (skb->len < 10) {
907 printk(KERN_INFO "%s: SKB length < 10\n",
908 dev->name);
909 goto rx_dropped;
910 }
911
912 fc = le16_to_cpu(hdr->frame_ctl);
913 type = WLAN_FC_GET_TYPE(fc);
914 stype = WLAN_FC_GET_STYPE(fc);
915 sc = le16_to_cpu(hdr->seq_ctl);
916
917 frag = WLAN_GET_SEQ_FRAG(sc);
918 hdrlen = ieee80211_get_hdrlen(fc);
919
920 if (HTCCheck(ieee, skb->data)) {
921 if (net_ratelimit())
922 printk("find HTCControl\n");
923 hdrlen += 4;
924 rx_stats->bContainHTC = true;
925 }
926
927
928 #ifdef NOT_YET
929
930
931 #ifdef IW_WIRELESS_SPY
932
933 if (iface->spy_data.spy_number > 0) {
934 struct iw_quality wstats;
935 wstats.level = rx_stats->rssi;
936 wstats.noise = rx_stats->noise;
937 wstats.updated = 6;
938
939 wireless_spy_update(dev, hdr->addr2, &wstats);
940 }
941 #endif
942 hostap_update_rx_stats(local->ap, hdr, rx_stats);
943 #endif
944
945 if (ieee->iw_mode == IW_MODE_MONITOR) {
946 ieee80211_monitor_rx(ieee, skb, rx_stats);
947 stats->rx_packets++;
948 stats->rx_bytes += skb->len;
949 return 1;
950 }
951
952 if (ieee->host_decrypt) {
953 int idx = 0;
954 if (skb->len >= hdrlen + 3)
955 idx = skb->data[hdrlen + 3] >> 6;
956 crypt = ieee->crypt[idx];
957 #ifdef NOT_YET
958 sta = NULL;
959
960
961
962
963
964
965
966
967 if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key)
968 (void)hostap_handle_sta_crypto(local, hdr, &crypt,
969 &sta);
970 #endif
971
972
973
974 if (crypt && (!crypt->ops || !crypt->ops->decrypt_mpdu))
975 crypt = NULL;
976
977 if (!crypt && (fc & IEEE80211_FCTL_WEP)) {
978
979
980
981
982 IEEE80211_DEBUG_DROP("Decryption failed (not set)"
983 " (SA=%pM)\n",
984 hdr->addr2);
985 ieee->ieee_stats.rx_discards_undecryptable++;
986 goto rx_dropped;
987 }
988 }
989
990 if (skb->len < IEEE80211_DATA_HDR3_LEN)
991 goto rx_dropped;
992
993
994 if ((!ieee->pHTInfo->bCurRxReorderEnable) || !ieee->current_network.qos_data.active || !IsDataFrame(skb->data) || IsLegacyDataFrame(skb->data)) {
995 if (is_duplicate_packet(ieee, hdr))
996 goto rx_dropped;
997
998 } else {
999 struct rx_ts_record *pRxTS = NULL;
1000
1001 if (GetTs(
1002 ieee,
1003 (struct ts_common_info **)&pRxTS,
1004 hdr->addr2,
1005 Frame_QoSTID((u8 *)(skb->data)),
1006 RX_DIR,
1007 true)) {
1008
1009
1010 if ((fc & (1 << 11)) &&
1011 (frag == pRxTS->rx_last_frag_num) &&
1012 (WLAN_GET_SEQ_SEQ(sc) == pRxTS->rx_last_seq_num)) {
1013 goto rx_dropped;
1014 } else {
1015 pRxTS->rx_last_frag_num = frag;
1016 pRxTS->rx_last_seq_num = WLAN_GET_SEQ_SEQ(sc);
1017 }
1018 } else {
1019 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s(): No TS!! Skip the check!!\n", __func__);
1020 goto rx_dropped;
1021 }
1022 }
1023 if (type == IEEE80211_FTYPE_MGMT) {
1024
1025
1026
1027 if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype))
1028 goto rx_dropped;
1029 else
1030 goto rx_exit;
1031 }
1032
1033
1034 switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
1035 case IEEE80211_FCTL_FROMDS:
1036 memcpy(dst, hdr->addr1, ETH_ALEN);
1037 memcpy(src, hdr->addr3, ETH_ALEN);
1038 memcpy(bssid, hdr->addr2, ETH_ALEN);
1039 break;
1040 case IEEE80211_FCTL_TODS:
1041 memcpy(dst, hdr->addr3, ETH_ALEN);
1042 memcpy(src, hdr->addr2, ETH_ALEN);
1043 memcpy(bssid, hdr->addr1, ETH_ALEN);
1044 break;
1045 case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
1046 if (skb->len < IEEE80211_DATA_HDR4_LEN)
1047 goto rx_dropped;
1048 memcpy(dst, hdr->addr3, ETH_ALEN);
1049 memcpy(src, hdr->addr4, ETH_ALEN);
1050 memcpy(bssid, ieee->current_network.bssid, ETH_ALEN);
1051 break;
1052 default:
1053 memcpy(dst, hdr->addr1, ETH_ALEN);
1054 memcpy(src, hdr->addr2, ETH_ALEN);
1055 memcpy(bssid, hdr->addr3, ETH_ALEN);
1056 break;
1057 }
1058
1059 #ifdef NOT_YET
1060 if (hostap_rx_frame_wds(ieee, hdr, fc, &wds))
1061 goto rx_dropped;
1062 if (wds) {
1063 skb->dev = dev = wds;
1064 stats = hostap_get_stats(dev);
1065 }
1066
1067 if (ieee->iw_mode == IW_MODE_MASTER && !wds &&
1068 (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS &&
1069 ieee->stadev &&
1070 memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) {
1071
1072 skb->dev = dev = ieee->stadev;
1073 stats = hostap_get_stats(dev);
1074 from_assoc_ap = 1;
1075 }
1076
1077 if ((ieee->iw_mode == IW_MODE_MASTER ||
1078 ieee->iw_mode == IW_MODE_REPEAT) &&
1079 !from_assoc_ap) {
1080 switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats,
1081 wds)) {
1082 case AP_RX_CONTINUE_NOT_AUTHORIZED:
1083 case AP_RX_CONTINUE:
1084 break;
1085 case AP_RX_DROP:
1086 goto rx_dropped;
1087 case AP_RX_EXIT:
1088 goto rx_exit;
1089 }
1090 }
1091 #endif
1092
1093
1094
1095 if (stype != IEEE80211_STYPE_DATA &&
1096 stype != IEEE80211_STYPE_DATA_CFACK &&
1097 stype != IEEE80211_STYPE_DATA_CFPOLL &&
1098 stype != IEEE80211_STYPE_DATA_CFACKPOLL &&
1099 stype != IEEE80211_STYPE_QOS_DATA
1100 ) {
1101 if (stype != IEEE80211_STYPE_NULLFUNC)
1102 IEEE80211_DEBUG_DROP(
1103 "RX: dropped data frame "
1104 "with no data (type=0x%02x, "
1105 "subtype=0x%02x, len=%d)\n",
1106 type, stype, skb->len);
1107 goto rx_dropped;
1108 }
1109 if (memcmp(bssid, ieee->current_network.bssid, ETH_ALEN))
1110 goto rx_dropped;
1111
1112
1113
1114 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1115 (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) {
1116 printk("decrypt frame error\n");
1117 goto rx_dropped;
1118 }
1119
1120
1121 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
1122
1123
1124
1125
1126 if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) {
1127 int flen;
1128 struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr);
1129 IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag);
1130
1131 if (!frag_skb) {
1132 IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG,
1133 "Rx cannot get skb from fragment "
1134 "cache (morefrag=%d seq=%u frag=%u)\n",
1135 (fc & IEEE80211_FCTL_MOREFRAGS) != 0,
1136 WLAN_GET_SEQ_SEQ(sc), frag);
1137 goto rx_dropped;
1138 }
1139 flen = skb->len;
1140 if (frag != 0)
1141 flen -= hdrlen;
1142
1143 if (frag_skb->tail + flen > frag_skb->end) {
1144 printk(KERN_WARNING "%s: host decrypted and "
1145 "reassembled frame did not fit skb\n",
1146 dev->name);
1147 ieee80211_frag_cache_invalidate(ieee, hdr);
1148 goto rx_dropped;
1149 }
1150
1151 if (frag == 0) {
1152
1153
1154 skb_put_data(frag_skb, skb->data, flen);
1155 } else {
1156
1157
1158 skb_put_data(frag_skb, skb->data + hdrlen, flen);
1159 }
1160 dev_kfree_skb_any(skb);
1161 skb = NULL;
1162
1163 if (fc & IEEE80211_FCTL_MOREFRAGS) {
1164
1165
1166
1167 goto rx_exit;
1168 }
1169
1170
1171
1172 skb = frag_skb;
1173 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
1174 ieee80211_frag_cache_invalidate(ieee, hdr);
1175 }
1176
1177
1178
1179 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1180 ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) {
1181 printk("==>decrypt msdu error\n");
1182 goto rx_dropped;
1183 }
1184
1185
1186 ieee->LinkDetectInfo.NumRecvDataInPeriod++;
1187 ieee->LinkDetectInfo.NumRxOkInPeriod++;
1188
1189 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
1190 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) {
1191 if (
1192 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1193
1194 #ifdef CONFIG_IEEE80211_DEBUG
1195
1196
1197 struct eapol *eap = (struct eapol *)(skb->data +
1198 24);
1199 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1200 eap_get_type(eap->type));
1201 #endif
1202 } else {
1203 IEEE80211_DEBUG_DROP(
1204 "encryption configured, but RX "
1205 "frame not encrypted (SA=%pM)\n",
1206 hdr->addr2);
1207 goto rx_dropped;
1208 }
1209 }
1210
1211 #ifdef CONFIG_IEEE80211_DEBUG
1212 if (crypt && !(fc & IEEE80211_FCTL_WEP) &&
1213 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1214 struct eapol *eap = (struct eapol *)(skb->data +
1215 24);
1216 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1217 eap_get_type(eap->type));
1218 }
1219 #endif
1220
1221 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep &&
1222 !ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1223 IEEE80211_DEBUG_DROP(
1224 "dropped unencrypted RX data "
1225 "frame from %pM"
1226 " (drop_unencrypted=1)\n",
1227 hdr->addr2);
1228 goto rx_dropped;
1229 }
1230
1231
1232
1233
1234
1235
1236 if (ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
1237 && !is_multicast_ether_addr(hdr->addr1)) {
1238 TID = Frame_QoSTID(skb->data);
1239 SeqNum = WLAN_GET_SEQ_SEQ(sc);
1240 GetTs(ieee, (struct ts_common_info **)&pTS, hdr->addr2, TID, RX_DIR, true);
1241 if (TID != 0 && TID != 3) {
1242 ieee->bis_any_nonbepkts = true;
1243 }
1244 }
1245
1246
1247
1248 rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
1249 if (!rxb)
1250 goto rx_dropped;
1251
1252
1253 if (parse_subframe(skb, rx_stats, rxb, src, dst) == 0) {
1254
1255 for (i = 0; i < rxb->nr_subframes; i++) {
1256 dev_kfree_skb(rxb->subframes[i]);
1257 }
1258 kfree(rxb);
1259 rxb = NULL;
1260 goto rx_dropped;
1261 }
1262
1263
1264 if (!ieee->pHTInfo->bCurRxReorderEnable || !pTS) {
1265
1266 for (i = 0; i < rxb->nr_subframes; i++) {
1267 struct sk_buff *sub_skb = rxb->subframes[i];
1268
1269 if (sub_skb) {
1270
1271 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
1272 if (sub_skb->len >= 8 &&
1273 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
1274 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
1275 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
1276
1277
1278 skb_pull(sub_skb, SNAP_SIZE);
1279 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1280 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1281 } else {
1282 u16 len;
1283
1284 len = be16_to_cpu(htons(sub_skb->len));
1285 memcpy(skb_push(sub_skb, 2), &len, 2);
1286 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1287 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1288 }
1289
1290 stats->rx_packets++;
1291 stats->rx_bytes += sub_skb->len;
1292 if (is_multicast_ether_addr(dst)) {
1293 stats->multicast++;
1294 }
1295
1296
1297 sub_skb->protocol = eth_type_trans(sub_skb, dev);
1298 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
1299 sub_skb->dev = dev;
1300 sub_skb->ip_summed = CHECKSUM_NONE;
1301
1302 ieee->last_rx_ps_time = jiffies;
1303 netif_rx(sub_skb);
1304 }
1305 }
1306 kfree(rxb);
1307 rxb = NULL;
1308
1309 } else {
1310 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): REORDER ENABLE AND PTS not NULL, and we will enter RxReorderIndicatePacket()\n", __func__);
1311 RxReorderIndicatePacket(ieee, rxb, pTS, SeqNum);
1312 }
1313 #ifndef JOHN_NOCPY
1314 dev_kfree_skb(skb);
1315 #endif
1316
1317 rx_exit:
1318 #ifdef NOT_YET
1319 if (sta)
1320 hostap_handle_sta_release(sta);
1321 #endif
1322 return 1;
1323
1324 rx_dropped:
1325 kfree(rxb);
1326 rxb = NULL;
1327 stats->rx_dropped++;
1328
1329
1330
1331
1332 return 0;
1333 }
1334 EXPORT_SYMBOL(ieee80211_rx);
1335
1336 #define MGMT_FRAME_FIXED_PART_LENGTH 0x24
1337
1338 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
1339
1340
1341
1342
1343
1344 static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
1345 *info_element, int sub_type)
1346 {
1347
1348 if (info_element->qui_subtype != sub_type)
1349 return -1;
1350 if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
1351 return -1;
1352 if (info_element->qui_type != QOS_OUI_TYPE)
1353 return -1;
1354 if (info_element->version != QOS_VERSION_1)
1355 return -1;
1356
1357 return 0;
1358 }
1359
1360
1361
1362
1363
1364 static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
1365 *element_param, struct ieee80211_info_element
1366 *info_element)
1367 {
1368 int ret = 0;
1369 u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
1370
1371 if (!info_element || !element_param)
1372 return -1;
1373
1374 if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
1375 memcpy(element_param->info_element.qui, info_element->data,
1376 info_element->len);
1377 element_param->info_element.elementID = info_element->id;
1378 element_param->info_element.length = info_element->len;
1379 } else
1380 ret = -1;
1381 if (ret == 0)
1382 ret = ieee80211_verify_qos_info(&element_param->info_element,
1383 QOS_OUI_PARAM_SUB_TYPE);
1384 return ret;
1385 }
1386
1387
1388
1389
1390 static int ieee80211_read_qos_info_element(
1391 struct ieee80211_qos_information_element *element_info,
1392 struct ieee80211_info_element *info_element)
1393 {
1394 int ret = 0;
1395 u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
1396
1397 if (!element_info)
1398 return -1;
1399 if (!info_element)
1400 return -1;
1401
1402 if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
1403 memcpy(element_info->qui, info_element->data,
1404 info_element->len);
1405 element_info->elementID = info_element->id;
1406 element_info->length = info_element->len;
1407 } else
1408 ret = -1;
1409
1410 if (ret == 0)
1411 ret = ieee80211_verify_qos_info(element_info,
1412 QOS_OUI_INFO_SUB_TYPE);
1413 return ret;
1414 }
1415
1416
1417
1418
1419
1420 static int ieee80211_qos_convert_ac_to_parameters(
1421 struct ieee80211_qos_parameter_info *param_elm,
1422 struct ieee80211_qos_parameters *qos_param)
1423 {
1424 int i;
1425 struct ieee80211_qos_ac_parameter *ac_params;
1426 u8 aci;
1427
1428
1429
1430 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1431 ac_params = &(param_elm->ac_params_record[i]);
1432
1433 aci = (ac_params->aci_aifsn & 0x60) >> 5;
1434
1435 if (aci >= QOS_QUEUE_NUM)
1436 continue;
1437 qos_param->aifs[aci] = (ac_params->aci_aifsn) & 0x0f;
1438
1439
1440 qos_param->aifs[aci] = (qos_param->aifs[aci] < 2) ? 2 : qos_param->aifs[aci];
1441
1442 qos_param->cw_min[aci] =
1443 cpu_to_le16(ac_params->ecw_min_max & 0x0F);
1444
1445 qos_param->cw_max[aci] =
1446 cpu_to_le16((ac_params->ecw_min_max & 0xF0) >> 4);
1447
1448 qos_param->flag[aci] =
1449 (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
1450 qos_param->tx_op_limit[aci] = ac_params->tx_op_limit;
1451 }
1452 return 0;
1453 }
1454
1455
1456
1457
1458
1459
1460 static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
1461 *info_element,
1462 struct ieee80211_network *network)
1463 {
1464 int rc = 0;
1465 struct ieee80211_qos_parameters *qos_param = NULL;
1466 struct ieee80211_qos_information_element qos_info_element;
1467
1468 rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
1469
1470 if (rc == 0) {
1471 network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
1472 network->flags |= NETWORK_HAS_QOS_INFORMATION;
1473 } else {
1474 struct ieee80211_qos_parameter_info param_element;
1475
1476 rc = ieee80211_read_qos_param_element(¶m_element,
1477 info_element);
1478 if (rc == 0) {
1479 qos_param = &(network->qos_data.parameters);
1480 ieee80211_qos_convert_ac_to_parameters(¶m_element,
1481 qos_param);
1482 network->flags |= NETWORK_HAS_QOS_PARAMETERS;
1483 network->qos_data.param_count =
1484 param_element.info_element.ac_info & 0x0F;
1485 }
1486 }
1487
1488 if (rc == 0) {
1489 IEEE80211_DEBUG_QOS("QoS is supported\n");
1490 network->qos_data.supported = 1;
1491 }
1492 return rc;
1493 }
1494
1495 #ifdef CONFIG_IEEE80211_DEBUG
1496 #define MFIE_STRING(x) case MFIE_TYPE_ ##x: return #x
1497
1498 static const char *get_info_element_string(u16 id)
1499 {
1500 switch (id) {
1501 MFIE_STRING(SSID);
1502 MFIE_STRING(RATES);
1503 MFIE_STRING(FH_SET);
1504 MFIE_STRING(DS_SET);
1505 MFIE_STRING(CF_SET);
1506 MFIE_STRING(TIM);
1507 MFIE_STRING(IBSS_SET);
1508 MFIE_STRING(COUNTRY);
1509 MFIE_STRING(HOP_PARAMS);
1510 MFIE_STRING(HOP_TABLE);
1511 MFIE_STRING(REQUEST);
1512 MFIE_STRING(CHALLENGE);
1513 MFIE_STRING(POWER_CONSTRAINT);
1514 MFIE_STRING(POWER_CAPABILITY);
1515 MFIE_STRING(TPC_REQUEST);
1516 MFIE_STRING(TPC_REPORT);
1517 MFIE_STRING(SUPP_CHANNELS);
1518 MFIE_STRING(CSA);
1519 MFIE_STRING(MEASURE_REQUEST);
1520 MFIE_STRING(MEASURE_REPORT);
1521 MFIE_STRING(QUIET);
1522 MFIE_STRING(IBSS_DFS);
1523
1524 MFIE_STRING(RSN);
1525 MFIE_STRING(RATES_EX);
1526 MFIE_STRING(GENERIC);
1527 MFIE_STRING(QOS_PARAMETER);
1528 default:
1529 return "UNKNOWN";
1530 }
1531 }
1532 #endif
1533
1534 static inline void ieee80211_extract_country_ie(
1535 struct ieee80211_device *ieee,
1536 struct ieee80211_info_element *info_element,
1537 struct ieee80211_network *network,
1538 u8 *addr2
1539 )
1540 {
1541 if (IS_DOT11D_ENABLE(ieee)) {
1542 if (info_element->len != 0) {
1543 memcpy(network->CountryIeBuf, info_element->data, info_element->len);
1544 network->CountryIeLen = info_element->len;
1545
1546 if (!IS_COUNTRY_IE_VALID(ieee)) {
1547 dot11d_update_country_ie(ieee, addr2, info_element->len, info_element->data);
1548 }
1549 }
1550
1551
1552
1553
1554
1555
1556 if (IS_EQUAL_CIE_SRC(ieee, addr2)) {
1557 UPDATE_CIE_WATCHDOG(ieee);
1558 }
1559 }
1560
1561 }
1562
1563 int ieee80211_parse_info_param(struct ieee80211_device *ieee,
1564 struct ieee80211_info_element *info_element,
1565 u16 length,
1566 struct ieee80211_network *network,
1567 struct ieee80211_rx_stats *stats)
1568 {
1569 u8 i;
1570 short offset;
1571 u16 tmp_htcap_len = 0;
1572 u16 tmp_htinfo_len = 0;
1573 u16 ht_realtek_agg_len = 0;
1574 u8 ht_realtek_agg_buf[MAX_IE_LEN];
1575
1576 #ifdef CONFIG_IEEE80211_DEBUG
1577 char rates_str[64];
1578 char *p;
1579 #endif
1580
1581 while (length >= sizeof(*info_element)) {
1582 if (sizeof(*info_element) + info_element->len > length) {
1583 IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
1584 "info_element->len + 2 > left : "
1585 "info_element->len+2=%zd left=%d, id=%d.\n",
1586 info_element->len +
1587 sizeof(*info_element),
1588 length, info_element->id);
1589
1590
1591
1592 break;
1593 }
1594
1595 switch (info_element->id) {
1596 case MFIE_TYPE_SSID:
1597 if (ieee80211_is_empty_essid(info_element->data,
1598 info_element->len)) {
1599 network->flags |= NETWORK_EMPTY_ESSID;
1600 break;
1601 }
1602
1603 network->ssid_len = min(info_element->len,
1604 (u8)IW_ESSID_MAX_SIZE);
1605 memcpy(network->ssid, info_element->data, network->ssid_len);
1606 if (network->ssid_len < IW_ESSID_MAX_SIZE)
1607 memset(network->ssid + network->ssid_len, 0,
1608 IW_ESSID_MAX_SIZE - network->ssid_len);
1609
1610 IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
1611 network->ssid, network->ssid_len);
1612 break;
1613
1614 case MFIE_TYPE_RATES:
1615 #ifdef CONFIG_IEEE80211_DEBUG
1616 p = rates_str;
1617 #endif
1618 network->rates_len = min(info_element->len,
1619 MAX_RATES_LENGTH);
1620 for (i = 0; i < network->rates_len; i++) {
1621 network->rates[i] = info_element->data[i];
1622 #ifdef CONFIG_IEEE80211_DEBUG
1623 p += snprintf(p, sizeof(rates_str) -
1624 (p - rates_str), "%02X ",
1625 network->rates[i]);
1626 #endif
1627 if (ieee80211_is_ofdm_rate
1628 (info_element->data[i])) {
1629 network->flags |= NETWORK_HAS_OFDM;
1630 if (info_element->data[i] &
1631 IEEE80211_BASIC_RATE_MASK)
1632 network->flags &=
1633 ~NETWORK_HAS_CCK;
1634 }
1635 }
1636
1637 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
1638 rates_str, network->rates_len);
1639 break;
1640
1641 case MFIE_TYPE_RATES_EX:
1642 #ifdef CONFIG_IEEE80211_DEBUG
1643 p = rates_str;
1644 #endif
1645 network->rates_ex_len = min(info_element->len,
1646 MAX_RATES_EX_LENGTH);
1647 for (i = 0; i < network->rates_ex_len; i++) {
1648 network->rates_ex[i] = info_element->data[i];
1649 #ifdef CONFIG_IEEE80211_DEBUG
1650 p += snprintf(p, sizeof(rates_str) -
1651 (p - rates_str), "%02X ",
1652 network->rates_ex[i]);
1653 #endif
1654 if (ieee80211_is_ofdm_rate
1655 (info_element->data[i])) {
1656 network->flags |= NETWORK_HAS_OFDM;
1657 if (info_element->data[i] &
1658 IEEE80211_BASIC_RATE_MASK)
1659 network->flags &=
1660 ~NETWORK_HAS_CCK;
1661 }
1662 }
1663
1664 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
1665 rates_str, network->rates_ex_len);
1666 break;
1667
1668 case MFIE_TYPE_DS_SET:
1669 IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
1670 info_element->data[0]);
1671 network->channel = info_element->data[0];
1672 break;
1673
1674 case MFIE_TYPE_FH_SET:
1675 IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
1676 break;
1677
1678 case MFIE_TYPE_CF_SET:
1679 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
1680 break;
1681
1682 case MFIE_TYPE_TIM:
1683 if (info_element->len < 4)
1684 break;
1685
1686 network->tim.tim_count = info_element->data[0];
1687 network->tim.tim_period = info_element->data[1];
1688
1689 network->dtim_period = info_element->data[1];
1690 if (ieee->state != IEEE80211_LINKED)
1691 break;
1692
1693 network->last_dtim_sta_time[0] = stats->mac_time[0];
1694 network->last_dtim_sta_time[1] = stats->mac_time[1];
1695
1696 network->dtim_data = IEEE80211_DTIM_VALID;
1697
1698 if (info_element->data[0] != 0)
1699 break;
1700
1701 if (info_element->data[2] & 1)
1702 network->dtim_data |= IEEE80211_DTIM_MBCAST;
1703
1704 offset = (info_element->data[2] >> 1) * 2;
1705
1706 if (ieee->assoc_id < 8 * offset ||
1707 ieee->assoc_id > 8 * (offset + info_element->len - 3))
1708
1709 break;
1710
1711 offset = (ieee->assoc_id / 8) - offset;
1712
1713 if (info_element->data[3 + offset] & (1 << (ieee->assoc_id % 8)))
1714 network->dtim_data |= IEEE80211_DTIM_UCAST;
1715
1716
1717 break;
1718
1719 case MFIE_TYPE_ERP:
1720 network->erp_value = info_element->data[0];
1721 network->flags |= NETWORK_HAS_ERP_VALUE;
1722 IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
1723 network->erp_value);
1724 break;
1725 case MFIE_TYPE_IBSS_SET:
1726 network->atim_window = info_element->data[0];
1727 IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
1728 network->atim_window);
1729 break;
1730
1731 case MFIE_TYPE_CHALLENGE:
1732 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
1733 break;
1734
1735 case MFIE_TYPE_GENERIC:
1736 IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
1737 info_element->len);
1738 if (!ieee80211_parse_qos_info_param_IE(info_element,
1739 network))
1740 break;
1741
1742 if (info_element->len >= 4 &&
1743 info_element->data[0] == 0x00 &&
1744 info_element->data[1] == 0x50 &&
1745 info_element->data[2] == 0xf2 &&
1746 info_element->data[3] == 0x01) {
1747 network->wpa_ie_len = min(info_element->len + 2,
1748 MAX_WPA_IE_LEN);
1749 memcpy(network->wpa_ie, info_element,
1750 network->wpa_ie_len);
1751 break;
1752 }
1753
1754 #ifdef THOMAS_TURBO
1755 if (info_element->len == 7 &&
1756 info_element->data[0] == 0x00 &&
1757 info_element->data[1] == 0xe0 &&
1758 info_element->data[2] == 0x4c &&
1759 info_element->data[3] == 0x01 &&
1760 info_element->data[4] == 0x02) {
1761 network->Turbo_Enable = 1;
1762 }
1763 #endif
1764
1765
1766 if (tmp_htcap_len == 0) {
1767 if (info_element->len >= 4 &&
1768 info_element->data[0] == 0x00 &&
1769 info_element->data[1] == 0x90 &&
1770 info_element->data[2] == 0x4c &&
1771 info_element->data[3] == 0x033){
1772
1773 tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN);
1774 if (tmp_htcap_len != 0) {
1775 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1776 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ? \
1777 sizeof(network->bssht.bdHTCapBuf) : tmp_htcap_len;
1778 memcpy(network->bssht.bdHTCapBuf, info_element->data, network->bssht.bdHTCapLen);
1779 }
1780 }
1781 if (tmp_htcap_len != 0)
1782 network->bssht.bdSupportHT = true;
1783 else
1784 network->bssht.bdSupportHT = false;
1785 }
1786
1787
1788 if (tmp_htinfo_len == 0) {
1789 if (info_element->len >= 4 &&
1790 info_element->data[0] == 0x00 &&
1791 info_element->data[1] == 0x90 &&
1792 info_element->data[2] == 0x4c &&
1793 info_element->data[3] == 0x034){
1794
1795 tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN);
1796 if (tmp_htinfo_len != 0) {
1797 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1798 if (tmp_htinfo_len) {
1799 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf) ? \
1800 sizeof(network->bssht.bdHTInfoBuf) : tmp_htinfo_len;
1801 memcpy(network->bssht.bdHTInfoBuf, info_element->data, network->bssht.bdHTInfoLen);
1802 }
1803
1804 }
1805
1806 }
1807 }
1808
1809 if (ieee->aggregation) {
1810 if (network->bssht.bdSupportHT) {
1811 if (info_element->len >= 4 &&
1812 info_element->data[0] == 0x00 &&
1813 info_element->data[1] == 0xe0 &&
1814 info_element->data[2] == 0x4c &&
1815 info_element->data[3] == 0x02){
1816
1817 ht_realtek_agg_len = min(info_element->len, (u8)MAX_IE_LEN);
1818 memcpy(ht_realtek_agg_buf, info_element->data, info_element->len);
1819
1820 }
1821 if (ht_realtek_agg_len >= 5) {
1822 network->bssht.bdRT2RTAggregation = true;
1823
1824 if ((ht_realtek_agg_buf[4] == 1) && (ht_realtek_agg_buf[5] & 0x02))
1825 network->bssht.bdRT2RTLongSlotTime = true;
1826 }
1827 }
1828
1829 }
1830
1831
1832 {
1833 if ((info_element->len >= 3 &&
1834 info_element->data[0] == 0x00 &&
1835 info_element->data[1] == 0x05 &&
1836 info_element->data[2] == 0xb5) ||
1837 (info_element->len >= 3 &&
1838 info_element->data[0] == 0x00 &&
1839 info_element->data[1] == 0x0a &&
1840 info_element->data[2] == 0xf7) ||
1841 (info_element->len >= 3 &&
1842 info_element->data[0] == 0x00 &&
1843 info_element->data[1] == 0x10 &&
1844 info_element->data[2] == 0x18)){
1845
1846 network->broadcom_cap_exist = true;
1847
1848 }
1849 }
1850 if (info_element->len >= 3 &&
1851 info_element->data[0] == 0x00 &&
1852 info_element->data[1] == 0x0c &&
1853 info_element->data[2] == 0x43) {
1854 network->ralink_cap_exist = true;
1855 } else
1856 network->ralink_cap_exist = false;
1857
1858 if ((info_element->len >= 3 &&
1859 info_element->data[0] == 0x00 &&
1860 info_element->data[1] == 0x03 &&
1861 info_element->data[2] == 0x7f) ||
1862 (info_element->len >= 3 &&
1863 info_element->data[0] == 0x00 &&
1864 info_element->data[1] == 0x13 &&
1865 info_element->data[2] == 0x74)) {
1866 printk("========>%s(): athros AP is exist\n", __func__);
1867 network->atheros_cap_exist = true;
1868 } else
1869 network->atheros_cap_exist = false;
1870
1871 if (info_element->len >= 3 &&
1872 info_element->data[0] == 0x00 &&
1873 info_element->data[1] == 0x40 &&
1874 info_element->data[2] == 0x96) {
1875 network->cisco_cap_exist = true;
1876 } else
1877 network->cisco_cap_exist = false;
1878
1879 if (info_element->len > 4 &&
1880 info_element->data[0] == 0x00 &&
1881 info_element->data[1] == 0x40 &&
1882 info_element->data[2] == 0x96 &&
1883 info_element->data[3] == 0x01) {
1884 if (info_element->len == 6) {
1885 memcpy(network->CcxRmState, &info_element[4], 2);
1886 if (network->CcxRmState[0] != 0)
1887 network->bCcxRmEnable = true;
1888 else
1889 network->bCcxRmEnable = false;
1890
1891
1892
1893 network->MBssidMask = network->CcxRmState[1] & 0x07;
1894 if (network->MBssidMask != 0) {
1895 network->bMBssidValid = true;
1896 network->MBssidMask = 0xff << (network->MBssidMask);
1897 ether_addr_copy(network->MBssid, network->bssid);
1898 network->MBssid[5] &= network->MBssidMask;
1899 } else {
1900 network->bMBssidValid = false;
1901 }
1902 } else {
1903 network->bCcxRmEnable = false;
1904 }
1905 }
1906 if (info_element->len > 4 &&
1907 info_element->data[0] == 0x00 &&
1908 info_element->data[1] == 0x40 &&
1909 info_element->data[2] == 0x96 &&
1910 info_element->data[3] == 0x03) {
1911 if (info_element->len == 5) {
1912 network->bWithCcxVerNum = true;
1913 network->BssCcxVerNumber = info_element->data[4];
1914 } else {
1915 network->bWithCcxVerNum = false;
1916 network->BssCcxVerNumber = 0;
1917 }
1918 }
1919 break;
1920
1921 case MFIE_TYPE_RSN:
1922 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
1923 info_element->len);
1924 network->rsn_ie_len = min(info_element->len + 2,
1925 MAX_WPA_IE_LEN);
1926 memcpy(network->rsn_ie, info_element,
1927 network->rsn_ie_len);
1928 break;
1929
1930
1931 case MFIE_TYPE_HT_CAP:
1932 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_CAP: %d bytes\n",
1933 info_element->len);
1934 tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN);
1935 if (tmp_htcap_len != 0) {
1936 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1937 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ? \
1938 sizeof(network->bssht.bdHTCapBuf) : tmp_htcap_len;
1939 memcpy(network->bssht.bdHTCapBuf, info_element->data, network->bssht.bdHTCapLen);
1940
1941
1942
1943
1944 network->bssht.bdSupportHT = true;
1945 } else
1946 network->bssht.bdSupportHT = false;
1947 break;
1948
1949
1950 case MFIE_TYPE_HT_INFO:
1951 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_INFO: %d bytes\n",
1952 info_element->len);
1953 tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN);
1954 if (tmp_htinfo_len) {
1955 network->bssht.bdHTSpecVer = HT_SPEC_VER_IEEE;
1956 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf) ? \
1957 sizeof(network->bssht.bdHTInfoBuf) : tmp_htinfo_len;
1958 memcpy(network->bssht.bdHTInfoBuf, info_element->data, network->bssht.bdHTInfoLen);
1959 }
1960 break;
1961
1962 case MFIE_TYPE_AIRONET:
1963 IEEE80211_DEBUG_SCAN("MFIE_TYPE_AIRONET: %d bytes\n",
1964 info_element->len);
1965 if (info_element->len > IE_CISCO_FLAG_POSITION) {
1966 network->bWithAironetIE = true;
1967
1968
1969
1970
1971 if ((info_element->data[IE_CISCO_FLAG_POSITION] & SUPPORT_CKIP_MIC) ||
1972 (info_element->data[IE_CISCO_FLAG_POSITION] & SUPPORT_CKIP_PK)) {
1973 network->bCkipSupported = true;
1974 } else {
1975 network->bCkipSupported = false;
1976 }
1977 } else {
1978 network->bWithAironetIE = false;
1979 network->bCkipSupported = false;
1980 }
1981 break;
1982 case MFIE_TYPE_QOS_PARAMETER:
1983 printk(KERN_ERR
1984 "QoS Error need to parse QOS_PARAMETER IE\n");
1985 break;
1986
1987 case MFIE_TYPE_COUNTRY:
1988 IEEE80211_DEBUG_SCAN("MFIE_TYPE_COUNTRY: %d bytes\n",
1989 info_element->len);
1990 ieee80211_extract_country_ie(ieee, info_element, network, network->bssid);
1991 break;
1992
1993 default:
1994 IEEE80211_DEBUG_MGMT
1995 ("Unsupported info element: %s (%d)\n",
1996 get_info_element_string(info_element->id),
1997 info_element->id);
1998 break;
1999 }
2000
2001 length -= sizeof(*info_element) + info_element->len;
2002 info_element =
2003 (struct ieee80211_info_element *)&info_element->
2004 data[info_element->len];
2005 }
2006
2007 if (!network->atheros_cap_exist && !network->broadcom_cap_exist &&
2008 !network->cisco_cap_exist && !network->ralink_cap_exist && !network->bssht.bdRT2RTAggregation) {
2009 network->unknown_cap_exist = true;
2010 } else {
2011 network->unknown_cap_exist = false;
2012 }
2013 return 0;
2014 }
2015
2016 static inline u8 ieee80211_SignalStrengthTranslate(
2017 u8 CurrSS
2018 )
2019 {
2020 u8 RetSS;
2021
2022
2023 if (CurrSS >= 71 && CurrSS <= 100) {
2024 RetSS = 90 + ((CurrSS - 70) / 3);
2025 } else if (CurrSS >= 41 && CurrSS <= 70) {
2026 RetSS = 78 + ((CurrSS - 40) / 3);
2027 } else if (CurrSS >= 31 && CurrSS <= 40) {
2028 RetSS = 66 + (CurrSS - 30);
2029 } else if (CurrSS >= 21 && CurrSS <= 30) {
2030 RetSS = 54 + (CurrSS - 20);
2031 } else if (CurrSS >= 5 && CurrSS <= 20) {
2032 RetSS = 42 + (((CurrSS - 5) * 2) / 3);
2033 } else if (CurrSS == 4) {
2034 RetSS = 36;
2035 } else if (CurrSS == 3) {
2036 RetSS = 27;
2037 } else if (CurrSS == 2) {
2038 RetSS = 18;
2039 } else if (CurrSS == 1) {
2040 RetSS = 9;
2041 } else {
2042 RetSS = CurrSS;
2043 }
2044
2045
2046
2047
2048
2049
2050 return RetSS;
2051 }
2052
2053
2054 static long ieee80211_translate_todbm(u8 signal_strength_index)
2055 {
2056 long signal_power;
2057
2058
2059 signal_power = (long)((signal_strength_index + 1) >> 1);
2060 signal_power -= 95;
2061
2062 return signal_power;
2063 }
2064
2065 static inline int ieee80211_network_init(
2066 struct ieee80211_device *ieee,
2067 struct ieee80211_probe_response *beacon,
2068 struct ieee80211_network *network,
2069 struct ieee80211_rx_stats *stats)
2070 {
2071 #ifdef CONFIG_IEEE80211_DEBUG
2072
2073
2074 #endif
2075
2076 network->qos_data.active = 0;
2077 network->qos_data.supported = 0;
2078 network->qos_data.param_count = 0;
2079 network->qos_data.old_param_count = 0;
2080
2081
2082 memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
2083 network->capability = le16_to_cpu(beacon->capability);
2084 network->last_scanned = jiffies;
2085 network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
2086 network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
2087 network->beacon_interval = le16_to_cpu(beacon->beacon_interval);
2088
2089 network->listen_interval = 0x0A;
2090 network->rates_len = network->rates_ex_len = 0;
2091 network->last_associate = 0;
2092 network->ssid_len = 0;
2093 network->flags = 0;
2094 network->atim_window = 0;
2095 network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
2096 0x3 : 0x0;
2097 network->berp_info_valid = false;
2098 network->broadcom_cap_exist = false;
2099 network->ralink_cap_exist = false;
2100 network->atheros_cap_exist = false;
2101 network->cisco_cap_exist = false;
2102 network->unknown_cap_exist = false;
2103 #ifdef THOMAS_TURBO
2104 network->Turbo_Enable = 0;
2105 #endif
2106 network->CountryIeLen = 0;
2107 memset(network->CountryIeBuf, 0, MAX_IE_LEN);
2108
2109
2110 HTInitializeBssDesc(&network->bssht);
2111 if (stats->freq == IEEE80211_52GHZ_BAND) {
2112
2113 network->channel = stats->received_channel;
2114 } else
2115 network->flags |= NETWORK_HAS_CCK;
2116
2117 network->wpa_ie_len = 0;
2118 network->rsn_ie_len = 0;
2119
2120 if (ieee80211_parse_info_param
2121 (ieee, beacon->info_element, stats->len - sizeof(*beacon), network, stats))
2122 return 1;
2123
2124 network->mode = 0;
2125 if (stats->freq == IEEE80211_52GHZ_BAND)
2126 network->mode = IEEE_A;
2127 else {
2128 if (network->flags & NETWORK_HAS_OFDM)
2129 network->mode |= IEEE_G;
2130 if (network->flags & NETWORK_HAS_CCK)
2131 network->mode |= IEEE_B;
2132 }
2133
2134 if (network->mode == 0) {
2135 IEEE80211_DEBUG_SCAN("Filtered out '%s (%pM)' "
2136 "network.\n",
2137 escape_essid(network->ssid,
2138 network->ssid_len),
2139 network->bssid);
2140 return 1;
2141 }
2142
2143 if (network->bssht.bdSupportHT) {
2144 if (network->mode == IEEE_A)
2145 network->mode = IEEE_N_5G;
2146 else if (network->mode & (IEEE_G | IEEE_B))
2147 network->mode = IEEE_N_24G;
2148 }
2149 if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
2150 network->flags |= NETWORK_EMPTY_ESSID;
2151
2152 stats->signal = 30 + (stats->SignalStrength * 70) / 100;
2153
2154 stats->noise = ieee80211_translate_todbm((u8)(100 - stats->signal)) - 25;
2155
2156 memcpy(&network->stats, stats, sizeof(network->stats));
2157
2158 return 0;
2159 }
2160
2161 static inline int is_same_network(struct ieee80211_network *src,
2162 struct ieee80211_network *dst, struct ieee80211_device *ieee)
2163 {
2164
2165
2166
2167
2168 return
2169 (((src->ssid_len == dst->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2170 (src->channel == dst->channel) &&
2171 !memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
2172
2173 (!memcmp(src->ssid, dst->ssid, src->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2174 ((src->capability & WLAN_CAPABILITY_IBSS) ==
2175 (dst->capability & WLAN_CAPABILITY_IBSS)) &&
2176 ((src->capability & WLAN_CAPABILITY_BSS) ==
2177 (dst->capability & WLAN_CAPABILITY_BSS)));
2178 }
2179
2180 static inline void update_network(struct ieee80211_network *dst,
2181 struct ieee80211_network *src)
2182 {
2183 int qos_active;
2184 u8 old_param;
2185
2186 memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
2187 dst->capability = src->capability;
2188 memcpy(dst->rates, src->rates, src->rates_len);
2189 dst->rates_len = src->rates_len;
2190 memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len);
2191 dst->rates_ex_len = src->rates_ex_len;
2192 if (src->ssid_len > 0) {
2193 memset(dst->ssid, 0, dst->ssid_len);
2194 dst->ssid_len = src->ssid_len;
2195 memcpy(dst->ssid, src->ssid, src->ssid_len);
2196 }
2197 dst->mode = src->mode;
2198 dst->flags = src->flags;
2199 dst->time_stamp[0] = src->time_stamp[0];
2200 dst->time_stamp[1] = src->time_stamp[1];
2201 if (src->flags & NETWORK_HAS_ERP_VALUE) {
2202 dst->erp_value = src->erp_value;
2203 dst->berp_info_valid = src->berp_info_valid = true;
2204 }
2205 dst->beacon_interval = src->beacon_interval;
2206 dst->listen_interval = src->listen_interval;
2207 dst->atim_window = src->atim_window;
2208 dst->dtim_period = src->dtim_period;
2209 dst->dtim_data = src->dtim_data;
2210 dst->last_dtim_sta_time[0] = src->last_dtim_sta_time[0];
2211 dst->last_dtim_sta_time[1] = src->last_dtim_sta_time[1];
2212 memcpy(&dst->tim, &src->tim, sizeof(struct ieee80211_tim_parameters));
2213
2214 dst->bssht.bdSupportHT = src->bssht.bdSupportHT;
2215 dst->bssht.bdRT2RTAggregation = src->bssht.bdRT2RTAggregation;
2216 dst->bssht.bdHTCapLen = src->bssht.bdHTCapLen;
2217 memcpy(dst->bssht.bdHTCapBuf, src->bssht.bdHTCapBuf, src->bssht.bdHTCapLen);
2218 dst->bssht.bdHTInfoLen = src->bssht.bdHTInfoLen;
2219 memcpy(dst->bssht.bdHTInfoBuf, src->bssht.bdHTInfoBuf, src->bssht.bdHTInfoLen);
2220 dst->bssht.bdHTSpecVer = src->bssht.bdHTSpecVer;
2221 dst->bssht.bdRT2RTLongSlotTime = src->bssht.bdRT2RTLongSlotTime;
2222 dst->broadcom_cap_exist = src->broadcom_cap_exist;
2223 dst->ralink_cap_exist = src->ralink_cap_exist;
2224 dst->atheros_cap_exist = src->atheros_cap_exist;
2225 dst->cisco_cap_exist = src->cisco_cap_exist;
2226 dst->unknown_cap_exist = src->unknown_cap_exist;
2227 memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
2228 dst->wpa_ie_len = src->wpa_ie_len;
2229 memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len);
2230 dst->rsn_ie_len = src->rsn_ie_len;
2231
2232 dst->last_scanned = jiffies;
2233
2234
2235 qos_active = dst->qos_data.active;
2236
2237 old_param = dst->qos_data.param_count;
2238 if (dst->flags & NETWORK_HAS_QOS_MASK)
2239 memcpy(&dst->qos_data, &src->qos_data,
2240 sizeof(struct ieee80211_qos_data));
2241 else {
2242 dst->qos_data.supported = src->qos_data.supported;
2243 dst->qos_data.param_count = src->qos_data.param_count;
2244 }
2245
2246 if (dst->qos_data.supported == 1) {
2247 dst->QoS_Enable = 1;
2248 if (dst->ssid_len)
2249 IEEE80211_DEBUG_QOS
2250 ("QoS the network %s is QoS supported\n",
2251 dst->ssid);
2252 else
2253 IEEE80211_DEBUG_QOS
2254 ("QoS the network is QoS supported\n");
2255 }
2256 dst->qos_data.active = qos_active;
2257 dst->qos_data.old_param_count = old_param;
2258
2259
2260 dst->wmm_info = src->wmm_info;
2261 if (src->wmm_param[0].aci_aifsn || \
2262 src->wmm_param[1].aci_aifsn || \
2263 src->wmm_param[2].aci_aifsn || \
2264 src->wmm_param[3].aci_aifsn) {
2265 memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN);
2266 }
2267
2268 #ifdef THOMAS_TURBO
2269 dst->Turbo_Enable = src->Turbo_Enable;
2270 #endif
2271
2272 dst->CountryIeLen = src->CountryIeLen;
2273 memcpy(dst->CountryIeBuf, src->CountryIeBuf, src->CountryIeLen);
2274
2275
2276 dst->bWithAironetIE = src->bWithAironetIE;
2277 dst->bCkipSupported = src->bCkipSupported;
2278 memcpy(dst->CcxRmState, src->CcxRmState, 2);
2279 dst->bCcxRmEnable = src->bCcxRmEnable;
2280 dst->MBssidMask = src->MBssidMask;
2281 dst->bMBssidValid = src->bMBssidValid;
2282 memcpy(dst->MBssid, src->MBssid, 6);
2283 dst->bWithCcxVerNum = src->bWithCcxVerNum;
2284 dst->BssCcxVerNumber = src->BssCcxVerNumber;
2285
2286 }
2287
2288 static inline int is_beacon(__le16 fc)
2289 {
2290 return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
2291 }
2292
2293 static inline void ieee80211_process_probe_response(
2294 struct ieee80211_device *ieee,
2295 struct ieee80211_probe_response *beacon,
2296 struct ieee80211_rx_stats *stats)
2297 {
2298 struct ieee80211_network *network;
2299 struct ieee80211_network *target;
2300 struct ieee80211_network *oldest = NULL;
2301 #ifdef CONFIG_IEEE80211_DEBUG
2302 struct ieee80211_info_element *info_element = &beacon->info_element[0];
2303 #endif
2304 int fc = WLAN_FC_GET_STYPE(le16_to_cpu(beacon->header.frame_ctl));
2305 unsigned long flags;
2306 short renew;
2307 u16 capability;
2308
2309
2310 network = kzalloc(sizeof(*network), GFP_ATOMIC);
2311 if (!network)
2312 goto out;
2313
2314 capability = le16_to_cpu(beacon->capability);
2315 IEEE80211_DEBUG_SCAN(
2316 "'%s' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
2317 escape_essid(info_element->data, info_element->len),
2318 beacon->header.addr3,
2319 (capability & BIT(0xf)) ? '1' : '0',
2320 (capability & BIT(0xe)) ? '1' : '0',
2321 (capability & BIT(0xd)) ? '1' : '0',
2322 (capability & BIT(0xc)) ? '1' : '0',
2323 (capability & BIT(0xb)) ? '1' : '0',
2324 (capability & BIT(0xa)) ? '1' : '0',
2325 (capability & BIT(0x9)) ? '1' : '0',
2326 (capability & BIT(0x8)) ? '1' : '0',
2327 (capability & BIT(0x7)) ? '1' : '0',
2328 (capability & BIT(0x6)) ? '1' : '0',
2329 (capability & BIT(0x5)) ? '1' : '0',
2330 (capability & BIT(0x4)) ? '1' : '0',
2331 (capability & BIT(0x3)) ? '1' : '0',
2332 (capability & BIT(0x2)) ? '1' : '0',
2333 (capability & BIT(0x1)) ? '1' : '0',
2334 (capability & BIT(0x0)) ? '1' : '0');
2335
2336 if (ieee80211_network_init(ieee, beacon, network, stats)) {
2337 IEEE80211_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n",
2338 escape_essid(info_element->data,
2339 info_element->len),
2340 beacon->header.addr3,
2341 fc == IEEE80211_STYPE_PROBE_RESP ?
2342 "PROBE RESPONSE" : "BEACON");
2343 goto out;
2344 }
2345
2346
2347
2348
2349
2350
2351
2352
2353 if (!is_legal_channel(ieee, network->channel))
2354 goto out;
2355 if (ieee->bGlobalDomain) {
2356 if (fc == IEEE80211_STYPE_PROBE_RESP) {
2357 if (IS_COUNTRY_IE_VALID(ieee)) {
2358
2359 if (!is_legal_channel(ieee, network->channel)) {
2360 printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network->channel);
2361 goto out;
2362 }
2363 } else {
2364
2365
2366 if (network->channel > 11) {
2367 printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network->channel);
2368 goto out;
2369 }
2370 }
2371 } else {
2372 if (IS_COUNTRY_IE_VALID(ieee)) {
2373
2374 if (!is_legal_channel(ieee, network->channel)) {
2375 printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n", network->channel);
2376 goto out;
2377 }
2378 } else {
2379
2380
2381 if (network->channel > 14) {
2382 printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n", network->channel);
2383 goto out;
2384 }
2385 }
2386 }
2387 }
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399 spin_lock_irqsave(&ieee->lock, flags);
2400
2401 if (is_same_network(&ieee->current_network, network, ieee)) {
2402 update_network(&ieee->current_network, network);
2403 if ((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
2404 && ieee->current_network.berp_info_valid){
2405 if (ieee->current_network.erp_value & ERP_UseProtection)
2406 ieee->current_network.buseprotection = true;
2407 else
2408 ieee->current_network.buseprotection = false;
2409 }
2410 if (is_beacon(beacon->header.frame_ctl)) {
2411 if (ieee->state == IEEE80211_LINKED)
2412 ieee->LinkDetectInfo.NumRecvBcnInPeriod++;
2413 } else
2414 network->flags = (~NETWORK_EMPTY_ESSID & network->flags) | (NETWORK_EMPTY_ESSID & ieee->current_network.flags);
2415 }
2416
2417 list_for_each_entry(target, &ieee->network_list, list) {
2418 if (is_same_network(target, network, ieee))
2419 break;
2420 if (!oldest ||
2421 (target->last_scanned < oldest->last_scanned))
2422 oldest = target;
2423 }
2424
2425
2426
2427 if (&target->list == &ieee->network_list) {
2428 if (list_empty(&ieee->network_free_list)) {
2429
2430 list_del(&oldest->list);
2431 target = oldest;
2432 IEEE80211_DEBUG_SCAN("Expired '%s' (%pM) from "
2433 "network list.\n",
2434 escape_essid(target->ssid,
2435 target->ssid_len),
2436 target->bssid);
2437 } else {
2438
2439 target = list_entry(ieee->network_free_list.next,
2440 struct ieee80211_network, list);
2441 list_del(ieee->network_free_list.next);
2442 }
2443
2444
2445 #ifdef CONFIG_IEEE80211_DEBUG
2446 IEEE80211_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n",
2447 escape_essid(network->ssid,
2448 network->ssid_len),
2449 network->bssid,
2450 fc == IEEE80211_STYPE_PROBE_RESP ?
2451 "PROBE RESPONSE" : "BEACON");
2452 #endif
2453 memcpy(target, network, sizeof(*target));
2454 list_add_tail(&target->list, &ieee->network_list);
2455 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE)
2456 ieee80211_softmac_new_net(ieee, network);
2457 } else {
2458 IEEE80211_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n",
2459 escape_essid(target->ssid,
2460 target->ssid_len),
2461 target->bssid,
2462 fc == IEEE80211_STYPE_PROBE_RESP ?
2463 "PROBE RESPONSE" : "BEACON");
2464
2465
2466
2467
2468
2469 renew = !time_after(target->last_scanned + ieee->scan_age, jiffies);
2470
2471 if (is_beacon(beacon->header.frame_ctl) == 0)
2472 network->flags = (~NETWORK_EMPTY_ESSID & network->flags) | (NETWORK_EMPTY_ESSID & target->flags);
2473
2474
2475 if (((network->flags & NETWORK_EMPTY_ESSID) == NETWORK_EMPTY_ESSID) \
2476 && (((network->ssid_len > 0) && (strncmp(target->ssid, network->ssid, network->ssid_len)))\
2477 || ((ieee->current_network.ssid_len == network->ssid_len) && (strncmp(ieee->current_network.ssid, network->ssid, network->ssid_len) == 0) && (ieee->state == IEEE80211_NOLINK))))
2478 renew = 1;
2479
2480
2481 update_network(target, network);
2482 if (renew && (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE))
2483 ieee80211_softmac_new_net(ieee, network);
2484 }
2485
2486 spin_unlock_irqrestore(&ieee->lock, flags);
2487 if (is_beacon(beacon->header.frame_ctl) && is_same_network(&ieee->current_network, network, ieee) && \
2488 (ieee->state == IEEE80211_LINKED)) {
2489 if (ieee->handle_beacon)
2490 ieee->handle_beacon(ieee->dev, beacon, &ieee->current_network);
2491 }
2492
2493 out:
2494 kfree(network);
2495 }
2496
2497 void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2498 struct rtl_80211_hdr_4addr *header,
2499 struct ieee80211_rx_stats *stats)
2500 {
2501 switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) {
2502
2503 case IEEE80211_STYPE_BEACON:
2504 IEEE80211_DEBUG_MGMT("received BEACON (%d)\n",
2505 WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)));
2506 IEEE80211_DEBUG_SCAN("Beacon\n");
2507 ieee80211_process_probe_response(
2508 ieee, (struct ieee80211_probe_response *)header, stats);
2509 break;
2510
2511 case IEEE80211_STYPE_PROBE_RESP:
2512 IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n",
2513 WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)));
2514 IEEE80211_DEBUG_SCAN("Probe response\n");
2515 ieee80211_process_probe_response(
2516 ieee, (struct ieee80211_probe_response *)header, stats);
2517 break;
2518
2519 }
2520 }
2521 EXPORT_SYMBOL(ieee80211_rx_mgt);