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24#include <linux/compiler.h>
25#include <linux/errno.h>
26#include <linux/if_arp.h>
27#include <linux/in6.h>
28#include <linux/in.h>
29#include <linux/ip.h>
30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/netdevice.h>
33#include <linux/pci.h>
34#include <linux/proc_fs.h>
35#include <linux/skbuff.h>
36#include <linux/slab.h>
37#include <linux/tcp.h>
38#include <linux/types.h>
39#include <linux/wireless.h>
40#include <linux/etherdevice.h>
41#include <linux/uaccess.h>
42#include <linux/ctype.h>
43
44#include "ieee80211.h"
45#include "dot11d.h"
46static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
47 struct sk_buff *skb,
48 struct ieee80211_rx_stats *rx_stats)
49{
50 struct rtl_80211_hdr_4addr *hdr = (struct rtl_80211_hdr_4addr *)skb->data;
51 u16 fc = le16_to_cpu(hdr->frame_ctl);
52
53 skb->dev = ieee->dev;
54 skb_reset_mac_header(skb);
55
56 skb_pull(skb, ieee80211_get_hdrlen(fc));
57 skb->pkt_type = PACKET_OTHERHOST;
58 skb->protocol = htons(ETH_P_80211_RAW);
59 memset(skb->cb, 0, sizeof(skb->cb));
60 netif_rx(skb);
61}
62
63
64
65static struct ieee80211_frag_entry *
66ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq,
67 unsigned int frag, u8 tid, u8 *src, u8 *dst)
68{
69 struct ieee80211_frag_entry *entry;
70 int i;
71
72 for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) {
73 entry = &ieee->frag_cache[tid][i];
74 if (entry->skb != NULL &&
75 time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
76 IEEE80211_DEBUG_FRAG(
77 "expiring fragment cache entry "
78 "seq=%u last_frag=%u\n",
79 entry->seq, entry->last_frag);
80 dev_kfree_skb_any(entry->skb);
81 entry->skb = NULL;
82 }
83
84 if (entry->skb != NULL && entry->seq == seq &&
85 (entry->last_frag + 1 == frag || frag == -1) &&
86 memcmp(entry->src_addr, src, ETH_ALEN) == 0 &&
87 memcmp(entry->dst_addr, dst, ETH_ALEN) == 0)
88 return entry;
89 }
90
91 return NULL;
92}
93
94
95static struct sk_buff *
96ieee80211_frag_cache_get(struct ieee80211_device *ieee,
97 struct rtl_80211_hdr_4addr *hdr)
98{
99 struct sk_buff *skb = NULL;
100 u16 fc = le16_to_cpu(hdr->frame_ctl);
101 u16 sc = le16_to_cpu(hdr->seq_ctl);
102 unsigned int frag = WLAN_GET_SEQ_FRAG(sc);
103 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
104 struct ieee80211_frag_entry *entry;
105 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
106 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
107 u8 tid;
108
109 if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
110 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr;
111 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
112 tid = UP2AC(tid);
113 tid++;
114 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
115 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr;
116 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
117 tid = UP2AC(tid);
118 tid++;
119 } else {
120 tid = 0;
121 }
122
123 if (frag == 0) {
124
125 skb = dev_alloc_skb(ieee->dev->mtu +
126 sizeof(struct rtl_80211_hdr_4addr) +
127 8 +
128 2 +
129 8 +
130 ETH_ALEN +
131 (IEEE80211_QOS_HAS_SEQ(fc)?2:0) );
132 if (!skb)
133 return NULL;
134
135 entry = &ieee->frag_cache[tid][ieee->frag_next_idx[tid]];
136 ieee->frag_next_idx[tid]++;
137 if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN)
138 ieee->frag_next_idx[tid] = 0;
139
140 if (entry->skb != NULL)
141 dev_kfree_skb_any(entry->skb);
142
143 entry->first_frag_time = jiffies;
144 entry->seq = seq;
145 entry->last_frag = frag;
146 entry->skb = skb;
147 memcpy(entry->src_addr, hdr->addr2, ETH_ALEN);
148 memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN);
149 } else {
150
151
152 entry = ieee80211_frag_cache_find(ieee, seq, frag, tid,hdr->addr2,
153 hdr->addr1);
154 if (entry != NULL) {
155 entry->last_frag = frag;
156 skb = entry->skb;
157 }
158 }
159
160 return skb;
161}
162
163
164
165static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
166 struct rtl_80211_hdr_4addr *hdr)
167{
168 u16 fc = le16_to_cpu(hdr->frame_ctl);
169 u16 sc = le16_to_cpu(hdr->seq_ctl);
170 unsigned int seq = WLAN_GET_SEQ_SEQ(sc);
171 struct ieee80211_frag_entry *entry;
172 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
173 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
174 u8 tid;
175
176 if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
177 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr;
178 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
179 tid = UP2AC(tid);
180 tid++;
181 } else if (IEEE80211_QOS_HAS_SEQ(fc)) {
182 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr;
183 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
184 tid = UP2AC(tid);
185 tid++;
186 } else {
187 tid = 0;
188 }
189
190 entry = ieee80211_frag_cache_find(ieee, seq, -1, tid, hdr->addr2,
191 hdr->addr1);
192
193 if (entry == NULL) {
194 IEEE80211_DEBUG_FRAG(
195 "could not invalidate fragment cache "
196 "entry (seq=%u)\n", seq);
197 return -1;
198 }
199
200 entry->skb = NULL;
201 return 0;
202}
203
204
205
206
207
208
209
210
211static inline int
212ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
213 struct ieee80211_rx_stats *rx_stats, u16 type,
214 u16 stype)
215{
216
217
218
219
220 struct rtl_80211_hdr_3addr *hdr = (struct rtl_80211_hdr_3addr *)skb->data;
221
222 rx_stats->len = skb->len;
223 ieee80211_rx_mgt(ieee,(struct rtl_80211_hdr_4addr *)skb->data,rx_stats);
224
225 if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN)))
226 {
227 dev_kfree_skb_any(skb);
228 return 0;
229 }
230
231 ieee80211_rx_frame_softmac(ieee, skb, rx_stats, type, stype);
232
233 dev_kfree_skb_any(skb);
234
235 return 0;
236
237 #ifdef NOT_YET
238 if (ieee->iw_mode == IW_MODE_MASTER) {
239 printk(KERN_DEBUG "%s: Master mode not yet supported.\n",
240 ieee->dev->name);
241 return 0;
242
243
244
245 }
246
247 if (ieee->hostapd && type == IEEE80211_TYPE_MGMT) {
248 if (stype == WLAN_FC_STYPE_BEACON &&
249 ieee->iw_mode == IW_MODE_MASTER) {
250 struct sk_buff *skb2;
251
252
253 skb2 = skb_clone(skb, GFP_ATOMIC);
254 if (skb2)
255 hostap_rx(skb2->dev, skb2, rx_stats);
256 }
257
258
259
260 ieee->apdevstats.rx_packets++;
261 ieee->apdevstats.rx_bytes += skb->len;
262 prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT);
263 return 0;
264 }
265
266 if (ieee->iw_mode == IW_MODE_MASTER) {
267 if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) {
268 printk(KERN_DEBUG "%s: unknown management frame "
269 "(type=0x%02x, stype=0x%02x) dropped\n",
270 skb->dev->name, type, stype);
271 return -1;
272 }
273
274 hostap_rx(skb->dev, skb, rx_stats);
275 return 0;
276 }
277
278 printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame "
279 "received in non-Host AP mode\n", skb->dev->name);
280 return -1;
281 #endif
282}
283
284
285
286
287
288static unsigned char rfc1042_header[] =
289{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
290
291static unsigned char bridge_tunnel_header[] =
292{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
293
294
295
296static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
297 struct sk_buff *skb, size_t hdrlen)
298{
299 struct net_device *dev = ieee->dev;
300 u16 fc, ethertype;
301 struct rtl_80211_hdr_4addr *hdr;
302 u8 *pos;
303
304 if (skb->len < 24)
305 return 0;
306
307 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
308 fc = le16_to_cpu(hdr->frame_ctl);
309
310
311 if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
312 IEEE80211_FCTL_TODS &&
313 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 &&
314 memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) {
315
316 } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
317 IEEE80211_FCTL_FROMDS &&
318 memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) {
319
320 } else
321 return 0;
322
323 if (skb->len < 24 + 8)
324 return 0;
325
326
327
328 pos = skb->data + hdrlen;
329 ethertype = (pos[6] << 8) | pos[7];
330 if (ethertype == ETH_P_PAE)
331 return 1;
332
333 return 0;
334}
335
336
337static inline int
338ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
339 struct ieee80211_crypt_data *crypt)
340{
341 struct rtl_80211_hdr_4addr *hdr;
342 int res, hdrlen;
343
344 if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL)
345 return 0;
346 if (ieee->hwsec_active)
347 {
348 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb+ MAX_DEV_ADDR_SIZE);
349 tcb_desc->bHwSec = 1;
350 }
351 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
352 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
353
354 if (ieee->tkip_countermeasures &&
355 strcmp(crypt->ops->name, "TKIP") == 0) {
356 if (net_ratelimit()) {
357 printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
358 "received packet from %pM\n",
359 ieee->dev->name, hdr->addr2);
360 }
361 return -1;
362 }
363
364 atomic_inc(&crypt->refcnt);
365 res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv);
366 atomic_dec(&crypt->refcnt);
367 if (res < 0) {
368 IEEE80211_DEBUG_DROP(
369 "decryption failed (SA=%pM"
370 ") res=%d\n", hdr->addr2, res);
371 if (res == -2)
372 IEEE80211_DEBUG_DROP("Decryption failed ICV "
373 "mismatch (key %d)\n",
374 skb->data[hdrlen + 3] >> 6);
375 ieee->ieee_stats.rx_discards_undecryptable++;
376 return -1;
377 }
378
379 return res;
380}
381
382
383
384static inline int
385ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee, struct sk_buff *skb,
386 int keyidx, struct ieee80211_crypt_data *crypt)
387{
388 struct rtl_80211_hdr_4addr *hdr;
389 int res, hdrlen;
390
391 if (crypt == NULL || crypt->ops->decrypt_msdu == NULL)
392 return 0;
393 if (ieee->hwsec_active)
394 {
395 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb+ MAX_DEV_ADDR_SIZE);
396 tcb_desc->bHwSec = 1;
397 }
398
399 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
400 hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
401
402 atomic_inc(&crypt->refcnt);
403 res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv);
404 atomic_dec(&crypt->refcnt);
405 if (res < 0) {
406 printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed"
407 " (SA=%pM keyidx=%d)\n",
408 ieee->dev->name, hdr->addr2, keyidx);
409 return -1;
410 }
411
412 return 0;
413}
414
415
416
417#define IEEE_PACKET_RETRY_TIME (5*HZ)
418static int is_duplicate_packet(struct ieee80211_device *ieee,
419 struct rtl_80211_hdr_4addr *header)
420{
421 u16 fc = le16_to_cpu(header->frame_ctl);
422 u16 sc = le16_to_cpu(header->seq_ctl);
423 u16 seq = WLAN_GET_SEQ_SEQ(sc);
424 u16 frag = WLAN_GET_SEQ_FRAG(sc);
425 u16 *last_seq, *last_frag;
426 unsigned long *last_time;
427 struct rtl_80211_hdr_3addrqos *hdr_3addrqos;
428 struct rtl_80211_hdr_4addrqos *hdr_4addrqos;
429 u8 tid;
430
431
432
433 if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) {
434 hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)header;
435 tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID;
436 tid = UP2AC(tid);
437 tid++;
438 } else if(IEEE80211_QOS_HAS_SEQ(fc)) {
439 hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)header;
440 tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID;
441 tid = UP2AC(tid);
442 tid++;
443 } else {
444 tid = 0;
445 }
446
447 switch (ieee->iw_mode) {
448 case IW_MODE_ADHOC:
449 {
450 struct list_head *p;
451 struct ieee_ibss_seq *entry = NULL;
452 u8 *mac = header->addr2;
453 int index = mac[5] % IEEE_IBSS_MAC_HASH_SIZE;
454
455 list_for_each(p, &ieee->ibss_mac_hash[index]) {
456 entry = list_entry(p, struct ieee_ibss_seq, list);
457 if (!memcmp(entry->mac, mac, ETH_ALEN))
458 break;
459 }
460
461 if (p == &ieee->ibss_mac_hash[index]) {
462 entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
463 if (!entry)
464 return 0;
465 memcpy(entry->mac, mac, ETH_ALEN);
466 entry->seq_num[tid] = seq;
467 entry->frag_num[tid] = frag;
468 entry->packet_time[tid] = jiffies;
469 list_add(&entry->list, &ieee->ibss_mac_hash[index]);
470 return 0;
471 }
472 last_seq = &entry->seq_num[tid];
473 last_frag = &entry->frag_num[tid];
474 last_time = &entry->packet_time[tid];
475 break;
476 }
477
478 case IW_MODE_INFRA:
479 last_seq = &ieee->last_rxseq_num[tid];
480 last_frag = &ieee->last_rxfrag_num[tid];
481 last_time = &ieee->last_packet_time[tid];
482
483 break;
484 default:
485 return 0;
486 }
487
488
489
490
491 if ((*last_seq == seq) &&
492 time_after(*last_time + IEEE_PACKET_RETRY_TIME, jiffies)) {
493 if (*last_frag == frag)
494 goto drop;
495 if (*last_frag + 1 != frag)
496
497 goto drop;
498 } else
499 *last_seq = seq;
500
501 *last_frag = frag;
502 *last_time = jiffies;
503 return 0;
504
505drop:
506
507
508 return 1;
509}
510
511static bool AddReorderEntry(struct rx_ts_record *pTS, PRX_REORDER_ENTRY pReorderEntry)
512{
513 struct list_head *pList = &pTS->rx_pending_pkt_list;
514 while(pList->next != &pTS->rx_pending_pkt_list)
515 {
516 if( SN_LESS(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
517 {
518 pList = pList->next;
519 }
520 else if( SN_EQUAL(pReorderEntry->SeqNum, ((PRX_REORDER_ENTRY)list_entry(pList->next,RX_REORDER_ENTRY,List))->SeqNum) )
521 {
522 return false;
523 }
524 else
525 {
526 break;
527 }
528 }
529 pReorderEntry->List.next = pList->next;
530 pReorderEntry->List.next->prev = &pReorderEntry->List;
531 pReorderEntry->List.prev = pList;
532 pList->next = &pReorderEntry->List;
533
534 return true;
535}
536
537void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_rxb **prxbIndicateArray,u8 index)
538{
539 u8 i = 0 , j=0;
540 u16 ethertype;
541
542
543 for(j = 0; j<index; j++)
544 {
545
546 struct ieee80211_rxb *prxb = prxbIndicateArray[j];
547 for(i = 0; i<prxb->nr_subframes; i++) {
548 struct sk_buff *sub_skb = prxb->subframes[i];
549
550
551 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
552 if (sub_skb->len >= 8 &&
553 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
554 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
555 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
556
557
558 skb_pull(sub_skb, SNAP_SIZE);
559 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
560 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
561 } else {
562
563 put_unaligned_be16(sub_skb->len, skb_push(sub_skb, 2));
564 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
565 memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
566 }
567
568
569
570
571 if (sub_skb) {
572 sub_skb->protocol = eth_type_trans(sub_skb, ieee->dev);
573 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
574 sub_skb->dev = ieee->dev;
575 sub_skb->ip_summed = CHECKSUM_NONE;
576
577 ieee->last_rx_ps_time = jiffies;
578 netif_rx(sub_skb);
579 }
580 }
581 kfree(prxb);
582 prxb = NULL;
583 }
584}
585
586
587static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
588 struct ieee80211_rxb *prxb,
589 struct rx_ts_record *pTS, u16 SeqNum)
590{
591 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
592 PRX_REORDER_ENTRY pReorderEntry = NULL;
593 struct ieee80211_rxb **prxbIndicateArray;
594 u8 WinSize = pHTInfo->RxReorderWinSize;
595 u16 WinEnd = (pTS->rx_indicate_seq + WinSize - 1) % 4096;
596 u8 index = 0;
597 bool bMatchWinStart = false, bPktInBuf = false;
598 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);
599
600 prxbIndicateArray = kmalloc_array(REORDER_WIN_SIZE,
601 sizeof(struct ieee80211_rxb *),
602 GFP_KERNEL);
603 if (!prxbIndicateArray)
604 return;
605
606
607 if (pTS->rx_indicate_seq == 0xffff) {
608 pTS->rx_indicate_seq = SeqNum;
609 }
610
611
612 if (SN_LESS(SeqNum, pTS->rx_indicate_seq)) {
613 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packet Drop! IndicateSeq: %d, NewSeq: %d\n",
614 pTS->rx_indicate_seq, SeqNum);
615 pHTInfo->RxReorderDropCounter++;
616 {
617 int i;
618 for(i =0; i < prxb->nr_subframes; i++) {
619 dev_kfree_skb(prxb->subframes[i]);
620 }
621 kfree(prxb);
622 prxb = NULL;
623 }
624
625 kfree(prxbIndicateArray);
626 return;
627 }
628
629
630
631
632
633
634 if(SN_EQUAL(SeqNum, pTS->rx_indicate_seq)) {
635 pTS->rx_indicate_seq = (pTS->rx_indicate_seq + 1) % 4096;
636 bMatchWinStart = true;
637 } else if(SN_LESS(WinEnd, SeqNum)) {
638 if(SeqNum >= (WinSize - 1)) {
639 pTS->rx_indicate_seq = SeqNum + 1 -WinSize;
640 } else {
641 pTS->rx_indicate_seq = 4095 - (WinSize - (SeqNum + 1)) + 1;
642 }
643 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Window Shift! IndicateSeq: %d, NewSeq: %d\n",pTS->rx_indicate_seq, SeqNum);
644 }
645
646
647
648
649
650
651
652
653
654
655 if(bMatchWinStart) {
656
657 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "Packets indication!! IndicateSeq: %d, NewSeq: %d\n",\
658 pTS->rx_indicate_seq, SeqNum);
659 prxbIndicateArray[0] = prxb;
660
661 index = 1;
662 } else {
663
664
665 if(!list_empty(&ieee->RxReorder_Unused_List)) {
666 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(ieee->RxReorder_Unused_List.next,RX_REORDER_ENTRY,List);
667 list_del_init(&pReorderEntry->List);
668
669
670 pReorderEntry->SeqNum = SeqNum;
671 pReorderEntry->prxb = prxb;
672
673
674 if(!AddReorderEntry(pTS, pReorderEntry)) {
675 IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n",
676 __func__, pTS->rx_indicate_seq, SeqNum);
677 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
678 {
679 int i;
680 for(i =0; i < prxb->nr_subframes; i++) {
681 dev_kfree_skb(prxb->subframes[i]);
682 }
683 kfree(prxb);
684 prxb = NULL;
685 }
686 } else {
687 IEEE80211_DEBUG(IEEE80211_DL_REORDER,
688 "Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n",pTS->rx_indicate_seq, SeqNum);
689 }
690 }
691 else {
692
693
694
695
696
697 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): There is no reorder entry!! Packet is dropped!!\n");
698 {
699 int i;
700 for(i =0; i < prxb->nr_subframes; i++) {
701 dev_kfree_skb(prxb->subframes[i]);
702 }
703 kfree(prxb);
704 prxb = NULL;
705 }
706 }
707 }
708
709
710 while(!list_empty(&pTS->rx_pending_pkt_list)) {
711 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): start RREORDER indicate\n",__func__);
712 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(pTS->rx_pending_pkt_list.prev,RX_REORDER_ENTRY,List);
713 if (SN_LESS(pReorderEntry->SeqNum, pTS->rx_indicate_seq) ||
714 SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq))
715 {
716
717 if (index >= REORDER_WIN_SIZE) {
718 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n");
719 bPktInBuf = true;
720 break;
721 }
722
723 list_del_init(&pReorderEntry->List);
724
725 if(SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq))
726 pTS->rx_indicate_seq = (pTS->rx_indicate_seq + 1) % 4096;
727
728 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packets indication!! IndicateSeq: %d, NewSeq: %d\n",pTS->rx_indicate_seq, SeqNum);
729 prxbIndicateArray[index] = pReorderEntry->prxb;
730
731 index++;
732
733 list_add_tail(&pReorderEntry->List,&ieee->RxReorder_Unused_List);
734 } else {
735 bPktInBuf = true;
736 break;
737 }
738 }
739
740
741 if (index>0) {
742
743
744 pTS->rx_timeout_indicate_seq = 0xffff;
745
746
747 if(index>REORDER_WIN_SIZE){
748 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorder buffer full!! \n");
749 kfree(prxbIndicateArray);
750 return;
751 }
752 ieee80211_indicate_packets(ieee, prxbIndicateArray, index);
753 }
754
755 if (bPktInBuf && pTS->rx_timeout_indicate_seq == 0xffff) {
756
757 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): SET rx timeout timer\n", __func__);
758 pTS->rx_timeout_indicate_seq = pTS->rx_indicate_seq;
759 if(timer_pending(&pTS->rx_pkt_pending_timer))
760 del_timer_sync(&pTS->rx_pkt_pending_timer);
761 pTS->rx_pkt_pending_timer.expires = jiffies +
762 msecs_to_jiffies(pHTInfo->RxReorderPendingTime);
763 add_timer(&pTS->rx_pkt_pending_timer);
764 }
765
766 kfree(prxbIndicateArray);
767}
768
769static u8 parse_subframe(struct sk_buff *skb,
770 struct ieee80211_rx_stats *rx_stats,
771 struct ieee80211_rxb *rxb, u8 *src, u8 *dst)
772{
773 struct rtl_80211_hdr_3addr *hdr = (struct rtl_80211_hdr_3addr *)skb->data;
774 u16 fc = le16_to_cpu(hdr->frame_ctl);
775
776 u16 LLCOffset= sizeof(struct rtl_80211_hdr_3addr);
777 u16 ChkLength;
778 bool bIsAggregateFrame = false;
779 u16 nSubframe_Length;
780 u8 nPadding_Length = 0;
781 u16 SeqNum=0;
782
783 struct sk_buff *sub_skb;
784
785 SeqNum = WLAN_GET_SEQ_SEQ(le16_to_cpu(hdr->seq_ctl));
786
787 if ((IEEE80211_QOS_HAS_SEQ(fc))&&\
788 (((frameqos *)(skb->data + IEEE80211_3ADDR_LEN))->field.reserved)) {
789 bIsAggregateFrame = true;
790 }
791
792 if (IEEE80211_QOS_HAS_SEQ(fc)) {
793 LLCOffset += 2;
794 }
795
796 if (rx_stats->bContainHTC) {
797 LLCOffset += HTCLNG;
798 }
799
800 ChkLength = LLCOffset;
801
802 if (skb->len <= ChkLength)
803 return 0;
804
805 skb_pull(skb, LLCOffset);
806
807 if(!bIsAggregateFrame) {
808 rxb->nr_subframes = 1;
809#ifdef JOHN_NOCPY
810 rxb->subframes[0] = skb;
811#else
812 rxb->subframes[0] = skb_copy(skb, GFP_ATOMIC);
813#endif
814
815 memcpy(rxb->src,src,ETH_ALEN);
816 memcpy(rxb->dst,dst,ETH_ALEN);
817
818 return 1;
819 } else {
820 rxb->nr_subframes = 0;
821 memcpy(rxb->src,src,ETH_ALEN);
822 memcpy(rxb->dst,dst,ETH_ALEN);
823 while(skb->len > ETHERNET_HEADER_SIZE) {
824
825 nSubframe_Length = *((u16 *)(skb->data + 12));
826
827 nSubframe_Length = (nSubframe_Length>>8) + (nSubframe_Length<<8);
828
829 if (skb->len<(ETHERNET_HEADER_SIZE + nSubframe_Length)) {
830 printk("%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
831 __func__, rxb->nr_subframes);
832 printk("%s: A-MSDU parse error!! Subframe Length: %d\n",__func__, nSubframe_Length);
833 printk("nRemain_Length is %d and nSubframe_Length is : %d\n",skb->len,nSubframe_Length);
834 printk("The Packet SeqNum is %d\n",SeqNum);
835 return 0;
836 }
837
838
839 skb_pull(skb, ETHERNET_HEADER_SIZE);
840
841#ifdef JOHN_NOCPY
842 sub_skb = skb_clone(skb, GFP_ATOMIC);
843 sub_skb->len = nSubframe_Length;
844 sub_skb->tail = sub_skb->data + nSubframe_Length;
845#else
846
847 sub_skb = dev_alloc_skb(nSubframe_Length + 12);
848 if (!sub_skb)
849 return 0;
850 skb_reserve(sub_skb, 12);
851 skb_put_data(sub_skb, skb->data, nSubframe_Length);
852#endif
853 rxb->subframes[rxb->nr_subframes++] = sub_skb;
854 if (rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
855 IEEE80211_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
856 break;
857 }
858 skb_pull(skb, nSubframe_Length);
859
860 if (skb->len != 0) {
861 nPadding_Length = 4 - ((nSubframe_Length + ETHERNET_HEADER_SIZE) % 4);
862 if (nPadding_Length == 4) {
863 nPadding_Length = 0;
864 }
865
866 if (skb->len < nPadding_Length) {
867 return 0;
868 }
869
870 skb_pull(skb, nPadding_Length);
871 }
872 }
873#ifdef JOHN_NOCPY
874 dev_kfree_skb(skb);
875#endif
876
877
878
879 return rxb->nr_subframes;
880 }
881}
882
883
884
885
886int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
887 struct ieee80211_rx_stats *rx_stats)
888{
889 struct net_device *dev = ieee->dev;
890 struct rtl_80211_hdr_4addr *hdr;
891
892
893 size_t hdrlen;
894 u16 fc, type, stype, sc;
895 struct net_device_stats *stats;
896 unsigned int frag;
897 u16 ethertype;
898
899 u8 TID = 0;
900 u16 SeqNum = 0;
901 struct rx_ts_record *pTS = NULL;
902
903
904#ifdef NOT_YET
905 struct net_device *wds = NULL;
906 struct net_device *wds = NULL;
907 int from_assoc_ap = 0;
908 void *sta = NULL;
909#endif
910
911 u8 dst[ETH_ALEN];
912 u8 src[ETH_ALEN];
913 u8 bssid[ETH_ALEN];
914 struct ieee80211_crypt_data *crypt = NULL;
915 int keyidx = 0;
916
917 int i;
918 struct ieee80211_rxb *rxb = NULL;
919
920 hdr = (struct rtl_80211_hdr_4addr *)skb->data;
921 stats = &ieee->stats;
922
923 if (skb->len < 10) {
924 printk(KERN_INFO "%s: SKB length < 10\n",
925 dev->name);
926 goto rx_dropped;
927 }
928
929 fc = le16_to_cpu(hdr->frame_ctl);
930 type = WLAN_FC_GET_TYPE(fc);
931 stype = WLAN_FC_GET_STYPE(fc);
932 sc = le16_to_cpu(hdr->seq_ctl);
933
934 frag = WLAN_GET_SEQ_FRAG(sc);
935 hdrlen = ieee80211_get_hdrlen(fc);
936
937 if (HTCCheck(ieee, skb->data))
938 {
939 if(net_ratelimit())
940 printk("find HTCControl\n");
941 hdrlen += 4;
942 rx_stats->bContainHTC = true;
943 }
944
945
946#ifdef NOT_YET
947
948
949#ifdef IW_WIRELESS_SPY
950
951 if (iface->spy_data.spy_number > 0) {
952 struct iw_quality wstats;
953 wstats.level = rx_stats->rssi;
954 wstats.noise = rx_stats->noise;
955 wstats.updated = 6;
956
957 wireless_spy_update(dev, hdr->addr2, &wstats);
958 }
959#endif
960 hostap_update_rx_stats(local->ap, hdr, rx_stats);
961#endif
962
963 if (ieee->iw_mode == IW_MODE_MONITOR) {
964 ieee80211_monitor_rx(ieee, skb, rx_stats);
965 stats->rx_packets++;
966 stats->rx_bytes += skb->len;
967 return 1;
968 }
969
970 if (ieee->host_decrypt) {
971 int idx = 0;
972 if (skb->len >= hdrlen + 3)
973 idx = skb->data[hdrlen + 3] >> 6;
974 crypt = ieee->crypt[idx];
975#ifdef NOT_YET
976 sta = NULL;
977
978
979
980
981
982
983
984
985 if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key)
986 (void) hostap_handle_sta_crypto(local, hdr, &crypt,
987 &sta);
988#endif
989
990
991
992 if (crypt && (crypt->ops == NULL ||
993 crypt->ops->decrypt_mpdu == NULL))
994 crypt = NULL;
995
996 if (!crypt && (fc & IEEE80211_FCTL_WEP)) {
997
998
999
1000
1001 IEEE80211_DEBUG_DROP("Decryption failed (not set)"
1002 " (SA=%pM)\n",
1003 hdr->addr2);
1004 ieee->ieee_stats.rx_discards_undecryptable++;
1005 goto rx_dropped;
1006 }
1007 }
1008
1009 if (skb->len < IEEE80211_DATA_HDR3_LEN)
1010 goto rx_dropped;
1011
1012
1013 if ((!ieee->pHTInfo->bCurRxReorderEnable) || !ieee->current_network.qos_data.active|| !IsDataFrame(skb->data) || IsLegacyDataFrame(skb->data)) {
1014 if (is_duplicate_packet(ieee, hdr))
1015 goto rx_dropped;
1016
1017 }
1018 else
1019 {
1020 struct rx_ts_record *pRxTS = NULL;
1021
1022 if(GetTs(
1023 ieee,
1024 (struct ts_common_info **) &pRxTS,
1025 hdr->addr2,
1026 Frame_QoSTID((u8 *)(skb->data)),
1027 RX_DIR,
1028 true))
1029 {
1030
1031
1032 if ((fc & (1<<11)) &&
1033 (frag == pRxTS->rx_last_frag_num) &&
1034 (WLAN_GET_SEQ_SEQ(sc) == pRxTS->rx_last_seq_num)) {
1035 goto rx_dropped;
1036 }
1037 else
1038 {
1039 pRxTS->rx_last_frag_num = frag;
1040 pRxTS->rx_last_seq_num = WLAN_GET_SEQ_SEQ(sc);
1041 }
1042 }
1043 else
1044 {
1045 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s(): No TS!! Skip the check!!\n",__func__);
1046 goto rx_dropped;
1047 }
1048 }
1049 if (type == IEEE80211_FTYPE_MGMT) {
1050
1051
1052
1053 if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype))
1054 goto rx_dropped;
1055 else
1056 goto rx_exit;
1057 }
1058
1059
1060 switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
1061 case IEEE80211_FCTL_FROMDS:
1062 memcpy(dst, hdr->addr1, ETH_ALEN);
1063 memcpy(src, hdr->addr3, ETH_ALEN);
1064 memcpy(bssid, hdr->addr2, ETH_ALEN);
1065 break;
1066 case IEEE80211_FCTL_TODS:
1067 memcpy(dst, hdr->addr3, ETH_ALEN);
1068 memcpy(src, hdr->addr2, ETH_ALEN);
1069 memcpy(bssid, hdr->addr1, ETH_ALEN);
1070 break;
1071 case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
1072 if (skb->len < IEEE80211_DATA_HDR4_LEN)
1073 goto rx_dropped;
1074 memcpy(dst, hdr->addr3, ETH_ALEN);
1075 memcpy(src, hdr->addr4, ETH_ALEN);
1076 memcpy(bssid, ieee->current_network.bssid, ETH_ALEN);
1077 break;
1078 default:
1079 memcpy(dst, hdr->addr1, ETH_ALEN);
1080 memcpy(src, hdr->addr2, ETH_ALEN);
1081 memcpy(bssid, hdr->addr3, ETH_ALEN);
1082 break;
1083 }
1084
1085#ifdef NOT_YET
1086 if (hostap_rx_frame_wds(ieee, hdr, fc, &wds))
1087 goto rx_dropped;
1088 if (wds) {
1089 skb->dev = dev = wds;
1090 stats = hostap_get_stats(dev);
1091 }
1092
1093 if (ieee->iw_mode == IW_MODE_MASTER && !wds &&
1094 (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS &&
1095 ieee->stadev &&
1096 memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) {
1097
1098 skb->dev = dev = ieee->stadev;
1099 stats = hostap_get_stats(dev);
1100 from_assoc_ap = 1;
1101 }
1102
1103 if ((ieee->iw_mode == IW_MODE_MASTER ||
1104 ieee->iw_mode == IW_MODE_REPEAT) &&
1105 !from_assoc_ap) {
1106 switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats,
1107 wds != NULL)) {
1108 case AP_RX_CONTINUE_NOT_AUTHORIZED:
1109 case AP_RX_CONTINUE:
1110 break;
1111 case AP_RX_DROP:
1112 goto rx_dropped;
1113 case AP_RX_EXIT:
1114 goto rx_exit;
1115 }
1116 }
1117#endif
1118
1119
1120
1121 if (stype != IEEE80211_STYPE_DATA &&
1122 stype != IEEE80211_STYPE_DATA_CFACK &&
1123 stype != IEEE80211_STYPE_DATA_CFPOLL &&
1124 stype != IEEE80211_STYPE_DATA_CFACKPOLL&&
1125 stype != IEEE80211_STYPE_QOS_DATA
1126 ) {
1127 if (stype != IEEE80211_STYPE_NULLFUNC)
1128 IEEE80211_DEBUG_DROP(
1129 "RX: dropped data frame "
1130 "with no data (type=0x%02x, "
1131 "subtype=0x%02x, len=%d)\n",
1132 type, stype, skb->len);
1133 goto rx_dropped;
1134 }
1135 if (memcmp(bssid, ieee->current_network.bssid, ETH_ALEN))
1136 goto rx_dropped;
1137
1138
1139
1140 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1141 (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
1142 {
1143 printk("decrypt frame error\n");
1144 goto rx_dropped;
1145 }
1146
1147
1148 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
1149
1150
1151
1152
1153 if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) {
1154 int flen;
1155 struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr);
1156 IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag);
1157
1158 if (!frag_skb) {
1159 IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG,
1160 "Rx cannot get skb from fragment "
1161 "cache (morefrag=%d seq=%u frag=%u)\n",
1162 (fc & IEEE80211_FCTL_MOREFRAGS) != 0,
1163 WLAN_GET_SEQ_SEQ(sc), frag);
1164 goto rx_dropped;
1165 }
1166 flen = skb->len;
1167 if (frag != 0)
1168 flen -= hdrlen;
1169
1170 if (frag_skb->tail + flen > frag_skb->end) {
1171 printk(KERN_WARNING "%s: host decrypted and "
1172 "reassembled frame did not fit skb\n",
1173 dev->name);
1174 ieee80211_frag_cache_invalidate(ieee, hdr);
1175 goto rx_dropped;
1176 }
1177
1178 if (frag == 0) {
1179
1180
1181 skb_put_data(frag_skb, skb->data, flen);
1182 } else {
1183
1184
1185 skb_put_data(frag_skb, skb->data + hdrlen, flen);
1186 }
1187 dev_kfree_skb_any(skb);
1188 skb = NULL;
1189
1190 if (fc & IEEE80211_FCTL_MOREFRAGS) {
1191
1192
1193
1194 goto rx_exit;
1195 }
1196
1197
1198
1199 skb = frag_skb;
1200 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
1201 ieee80211_frag_cache_invalidate(ieee, hdr);
1202 }
1203
1204
1205
1206 if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
1207 ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
1208 {
1209 printk("==>decrypt msdu error\n");
1210 goto rx_dropped;
1211 }
1212
1213
1214 ieee->LinkDetectInfo.NumRecvDataInPeriod++;
1215 ieee->LinkDetectInfo.NumRxOkInPeriod++;
1216
1217 hdr = (struct rtl_80211_hdr_4addr *) skb->data;
1218 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) {
1219 if (
1220 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1221
1222#ifdef CONFIG_IEEE80211_DEBUG
1223
1224
1225 struct eapol *eap = (struct eapol *)(skb->data +
1226 24);
1227 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1228 eap_get_type(eap->type));
1229#endif
1230 } else {
1231 IEEE80211_DEBUG_DROP(
1232 "encryption configured, but RX "
1233 "frame not encrypted (SA=%pM)\n",
1234 hdr->addr2);
1235 goto rx_dropped;
1236 }
1237 }
1238
1239#ifdef CONFIG_IEEE80211_DEBUG
1240 if (crypt && !(fc & IEEE80211_FCTL_WEP) &&
1241 ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1242 struct eapol *eap = (struct eapol *)(skb->data +
1243 24);
1244 IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
1245 eap_get_type(eap->type));
1246 }
1247#endif
1248
1249 if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep &&
1250 !ieee80211_is_eapol_frame(ieee, skb, hdrlen)) {
1251 IEEE80211_DEBUG_DROP(
1252 "dropped unencrypted RX data "
1253 "frame from %pM"
1254 " (drop_unencrypted=1)\n",
1255 hdr->addr2);
1256 goto rx_dropped;
1257 }
1258
1259
1260
1261
1262
1263
1264 if (ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
1265 && !is_multicast_ether_addr(hdr->addr1))
1266 {
1267 TID = Frame_QoSTID(skb->data);
1268 SeqNum = WLAN_GET_SEQ_SEQ(sc);
1269 GetTs(ieee,(struct ts_common_info **) &pTS,hdr->addr2,TID,RX_DIR,true);
1270 if (TID !=0 && TID !=3)
1271 {
1272 ieee->bis_any_nonbepkts = true;
1273 }
1274 }
1275
1276
1277
1278 rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
1279 if (!rxb)
1280 goto rx_dropped;
1281
1282
1283 if (parse_subframe(skb, rx_stats, rxb, src, dst) == 0) {
1284
1285 for(i =0; i < rxb->nr_subframes; i++) {
1286 dev_kfree_skb(rxb->subframes[i]);
1287 }
1288 kfree(rxb);
1289 rxb = NULL;
1290 goto rx_dropped;
1291 }
1292
1293
1294 if (!ieee->pHTInfo->bCurRxReorderEnable || pTS == NULL){
1295
1296 for(i = 0; i<rxb->nr_subframes; i++) {
1297 struct sk_buff *sub_skb = rxb->subframes[i];
1298
1299 if (sub_skb) {
1300
1301 ethertype = (sub_skb->data[6] << 8) | sub_skb->data[7];
1302 if (sub_skb->len >= 8 &&
1303 ((memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) == 0 &&
1304 ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
1305 memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
1306
1307
1308 skb_pull(sub_skb, SNAP_SIZE);
1309 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1310 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1311 } else {
1312 u16 len;
1313
1314 len = be16_to_cpu(htons(sub_skb->len));
1315 memcpy(skb_push(sub_skb, 2), &len, 2);
1316 memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
1317 memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
1318 }
1319
1320 stats->rx_packets++;
1321 stats->rx_bytes += sub_skb->len;
1322 if (is_multicast_ether_addr(dst)) {
1323 stats->multicast++;
1324 }
1325
1326
1327 sub_skb->protocol = eth_type_trans(sub_skb, dev);
1328 memset(sub_skb->cb, 0, sizeof(sub_skb->cb));
1329 sub_skb->dev = dev;
1330 sub_skb->ip_summed = CHECKSUM_NONE;
1331
1332 ieee->last_rx_ps_time = jiffies;
1333 netif_rx(sub_skb);
1334 }
1335 }
1336 kfree(rxb);
1337 rxb = NULL;
1338
1339 }
1340 else
1341 {
1342 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): REORDER ENABLE AND PTS not NULL, and we will enter RxReorderIndicatePacket()\n",__func__);
1343 RxReorderIndicatePacket(ieee, rxb, pTS, SeqNum);
1344 }
1345#ifndef JOHN_NOCPY
1346 dev_kfree_skb(skb);
1347#endif
1348
1349 rx_exit:
1350#ifdef NOT_YET
1351 if (sta)
1352 hostap_handle_sta_release(sta);
1353#endif
1354 return 1;
1355
1356 rx_dropped:
1357 kfree(rxb);
1358 rxb = NULL;
1359 stats->rx_dropped++;
1360
1361
1362
1363
1364 return 0;
1365}
1366EXPORT_SYMBOL(ieee80211_rx);
1367
1368#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
1369
1370static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
1371
1372
1373
1374
1375
1376static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
1377 *info_element, int sub_type)
1378{
1379
1380 if (info_element->qui_subtype != sub_type)
1381 return -1;
1382 if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
1383 return -1;
1384 if (info_element->qui_type != QOS_OUI_TYPE)
1385 return -1;
1386 if (info_element->version != QOS_VERSION_1)
1387 return -1;
1388
1389 return 0;
1390}
1391
1392
1393
1394
1395
1396static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
1397 *element_param, struct ieee80211_info_element
1398 *info_element)
1399{
1400 int ret = 0;
1401 u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
1402
1403 if ((info_element == NULL) || (element_param == NULL))
1404 return -1;
1405
1406 if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
1407 memcpy(element_param->info_element.qui, info_element->data,
1408 info_element->len);
1409 element_param->info_element.elementID = info_element->id;
1410 element_param->info_element.length = info_element->len;
1411 } else
1412 ret = -1;
1413 if (ret == 0)
1414 ret = ieee80211_verify_qos_info(&element_param->info_element,
1415 QOS_OUI_PARAM_SUB_TYPE);
1416 return ret;
1417}
1418
1419
1420
1421
1422static int ieee80211_read_qos_info_element(struct
1423 ieee80211_qos_information_element
1424 *element_info, struct ieee80211_info_element
1425 *info_element)
1426{
1427 int ret = 0;
1428 u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
1429
1430 if (element_info == NULL)
1431 return -1;
1432 if (info_element == NULL)
1433 return -1;
1434
1435 if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
1436 memcpy(element_info->qui, info_element->data,
1437 info_element->len);
1438 element_info->elementID = info_element->id;
1439 element_info->length = info_element->len;
1440 } else
1441 ret = -1;
1442
1443 if (ret == 0)
1444 ret = ieee80211_verify_qos_info(element_info,
1445 QOS_OUI_INFO_SUB_TYPE);
1446 return ret;
1447}
1448
1449
1450
1451
1452
1453static int ieee80211_qos_convert_ac_to_parameters(struct
1454 ieee80211_qos_parameter_info
1455 *param_elm, struct
1456 ieee80211_qos_parameters
1457 *qos_param)
1458{
1459 int i;
1460 struct ieee80211_qos_ac_parameter *ac_params;
1461 u8 aci;
1462
1463
1464
1465 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1466 ac_params = &(param_elm->ac_params_record[i]);
1467
1468 aci = (ac_params->aci_aifsn & 0x60) >> 5;
1469
1470 if(aci >= QOS_QUEUE_NUM)
1471 continue;
1472 qos_param->aifs[aci] = (ac_params->aci_aifsn) & 0x0f;
1473
1474
1475 qos_param->aifs[aci] = (qos_param->aifs[aci] < 2) ? 2:qos_param->aifs[aci];
1476
1477 qos_param->cw_min[aci] =
1478 cpu_to_le16(ac_params->ecw_min_max & 0x0F);
1479
1480 qos_param->cw_max[aci] =
1481 cpu_to_le16((ac_params->ecw_min_max & 0xF0) >> 4);
1482
1483 qos_param->flag[aci] =
1484 (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
1485 qos_param->tx_op_limit[aci] = ac_params->tx_op_limit;
1486 }
1487 return 0;
1488}
1489
1490
1491
1492
1493
1494
1495static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
1496 *info_element,
1497 struct ieee80211_network *network)
1498{
1499 int rc = 0;
1500 struct ieee80211_qos_parameters *qos_param = NULL;
1501 struct ieee80211_qos_information_element qos_info_element;
1502
1503 rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
1504
1505 if (rc == 0) {
1506 network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
1507 network->flags |= NETWORK_HAS_QOS_INFORMATION;
1508 } else {
1509 struct ieee80211_qos_parameter_info param_element;
1510
1511 rc = ieee80211_read_qos_param_element(¶m_element,
1512 info_element);
1513 if (rc == 0) {
1514 qos_param = &(network->qos_data.parameters);
1515 ieee80211_qos_convert_ac_to_parameters(¶m_element,
1516 qos_param);
1517 network->flags |= NETWORK_HAS_QOS_PARAMETERS;
1518 network->qos_data.param_count =
1519 param_element.info_element.ac_info & 0x0F;
1520 }
1521 }
1522
1523 if (rc == 0) {
1524 IEEE80211_DEBUG_QOS("QoS is supported\n");
1525 network->qos_data.supported = 1;
1526 }
1527 return rc;
1528}
1529
1530#ifdef CONFIG_IEEE80211_DEBUG
1531#define MFIE_STRING(x) case MFIE_TYPE_ ##x: return #x
1532
1533static const char *get_info_element_string(u16 id)
1534{
1535 switch (id) {
1536 MFIE_STRING(SSID);
1537 MFIE_STRING(RATES);
1538 MFIE_STRING(FH_SET);
1539 MFIE_STRING(DS_SET);
1540 MFIE_STRING(CF_SET);
1541 MFIE_STRING(TIM);
1542 MFIE_STRING(IBSS_SET);
1543 MFIE_STRING(COUNTRY);
1544 MFIE_STRING(HOP_PARAMS);
1545 MFIE_STRING(HOP_TABLE);
1546 MFIE_STRING(REQUEST);
1547 MFIE_STRING(CHALLENGE);
1548 MFIE_STRING(POWER_CONSTRAINT);
1549 MFIE_STRING(POWER_CAPABILITY);
1550 MFIE_STRING(TPC_REQUEST);
1551 MFIE_STRING(TPC_REPORT);
1552 MFIE_STRING(SUPP_CHANNELS);
1553 MFIE_STRING(CSA);
1554 MFIE_STRING(MEASURE_REQUEST);
1555 MFIE_STRING(MEASURE_REPORT);
1556 MFIE_STRING(QUIET);
1557 MFIE_STRING(IBSS_DFS);
1558
1559 MFIE_STRING(RSN);
1560 MFIE_STRING(RATES_EX);
1561 MFIE_STRING(GENERIC);
1562 MFIE_STRING(QOS_PARAMETER);
1563 default:
1564 return "UNKNOWN";
1565 }
1566}
1567#endif
1568
1569static inline void ieee80211_extract_country_ie(
1570 struct ieee80211_device *ieee,
1571 struct ieee80211_info_element *info_element,
1572 struct ieee80211_network *network,
1573 u8 *addr2
1574)
1575{
1576 if (IS_DOT11D_ENABLE(ieee))
1577 {
1578 if (info_element->len!= 0)
1579 {
1580 memcpy(network->CountryIeBuf, info_element->data, info_element->len);
1581 network->CountryIeLen = info_element->len;
1582
1583 if (!IS_COUNTRY_IE_VALID(ieee))
1584 {
1585 dot11d_update_country_ie(ieee, addr2, info_element->len, info_element->data);
1586 }
1587 }
1588
1589
1590
1591
1592
1593
1594 if (IS_EQUAL_CIE_SRC(ieee, addr2) )
1595 {
1596 UPDATE_CIE_WATCHDOG(ieee);
1597 }
1598 }
1599
1600}
1601
1602int ieee80211_parse_info_param(struct ieee80211_device *ieee,
1603 struct ieee80211_info_element *info_element,
1604 u16 length,
1605 struct ieee80211_network *network,
1606 struct ieee80211_rx_stats *stats)
1607{
1608 u8 i;
1609 short offset;
1610 u16 tmp_htcap_len=0;
1611 u16 tmp_htinfo_len=0;
1612 u16 ht_realtek_agg_len=0;
1613 u8 ht_realtek_agg_buf[MAX_IE_LEN];
1614
1615#ifdef CONFIG_IEEE80211_DEBUG
1616 char rates_str[64];
1617 char *p;
1618#endif
1619
1620 while (length >= sizeof(*info_element)) {
1621 if (sizeof(*info_element) + info_element->len > length) {
1622 IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
1623 "info_element->len + 2 > left : "
1624 "info_element->len+2=%zd left=%d, id=%d.\n",
1625 info_element->len +
1626 sizeof(*info_element),
1627 length, info_element->id);
1628
1629
1630
1631 break;
1632 }
1633
1634 switch (info_element->id) {
1635 case MFIE_TYPE_SSID:
1636 if (ieee80211_is_empty_essid(info_element->data,
1637 info_element->len)) {
1638 network->flags |= NETWORK_EMPTY_ESSID;
1639 break;
1640 }
1641
1642 network->ssid_len = min(info_element->len,
1643 (u8) IW_ESSID_MAX_SIZE);
1644 memcpy(network->ssid, info_element->data, network->ssid_len);
1645 if (network->ssid_len < IW_ESSID_MAX_SIZE)
1646 memset(network->ssid + network->ssid_len, 0,
1647 IW_ESSID_MAX_SIZE - network->ssid_len);
1648
1649 IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
1650 network->ssid, network->ssid_len);
1651 break;
1652
1653 case MFIE_TYPE_RATES:
1654#ifdef CONFIG_IEEE80211_DEBUG
1655 p = rates_str;
1656#endif
1657 network->rates_len = min(info_element->len,
1658 MAX_RATES_LENGTH);
1659 for (i = 0; i < network->rates_len; i++) {
1660 network->rates[i] = info_element->data[i];
1661#ifdef CONFIG_IEEE80211_DEBUG
1662 p += snprintf(p, sizeof(rates_str) -
1663 (p - rates_str), "%02X ",
1664 network->rates[i]);
1665#endif
1666 if (ieee80211_is_ofdm_rate
1667 (info_element->data[i])) {
1668 network->flags |= NETWORK_HAS_OFDM;
1669 if (info_element->data[i] &
1670 IEEE80211_BASIC_RATE_MASK)
1671 network->flags &=
1672 ~NETWORK_HAS_CCK;
1673 }
1674 }
1675
1676 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
1677 rates_str, network->rates_len);
1678 break;
1679
1680 case MFIE_TYPE_RATES_EX:
1681#ifdef CONFIG_IEEE80211_DEBUG
1682 p = rates_str;
1683#endif
1684 network->rates_ex_len = min(info_element->len,
1685 MAX_RATES_EX_LENGTH);
1686 for (i = 0; i < network->rates_ex_len; i++) {
1687 network->rates_ex[i] = info_element->data[i];
1688#ifdef CONFIG_IEEE80211_DEBUG
1689 p += snprintf(p, sizeof(rates_str) -
1690 (p - rates_str), "%02X ",
1691 network->rates_ex[i]);
1692#endif
1693 if (ieee80211_is_ofdm_rate
1694 (info_element->data[i])) {
1695 network->flags |= NETWORK_HAS_OFDM;
1696 if (info_element->data[i] &
1697 IEEE80211_BASIC_RATE_MASK)
1698 network->flags &=
1699 ~NETWORK_HAS_CCK;
1700 }
1701 }
1702
1703 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
1704 rates_str, network->rates_ex_len);
1705 break;
1706
1707 case MFIE_TYPE_DS_SET:
1708 IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
1709 info_element->data[0]);
1710 network->channel = info_element->data[0];
1711 break;
1712
1713 case MFIE_TYPE_FH_SET:
1714 IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
1715 break;
1716
1717 case MFIE_TYPE_CF_SET:
1718 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
1719 break;
1720
1721 case MFIE_TYPE_TIM:
1722 if(info_element->len < 4)
1723 break;
1724
1725 network->tim.tim_count = info_element->data[0];
1726 network->tim.tim_period = info_element->data[1];
1727
1728 network->dtim_period = info_element->data[1];
1729 if(ieee->state != IEEE80211_LINKED)
1730 break;
1731
1732 network->last_dtim_sta_time[0] = stats->mac_time[0];
1733 network->last_dtim_sta_time[1] = stats->mac_time[1];
1734
1735 network->dtim_data = IEEE80211_DTIM_VALID;
1736
1737 if(info_element->data[0] != 0)
1738 break;
1739
1740 if(info_element->data[2] & 1)
1741 network->dtim_data |= IEEE80211_DTIM_MBCAST;
1742
1743 offset = (info_element->data[2] >> 1)*2;
1744
1745 if(ieee->assoc_id < 8*offset ||
1746 ieee->assoc_id > 8*(offset + info_element->len -3))
1747
1748 break;
1749
1750 offset = (ieee->assoc_id / 8) - offset;
1751
1752 if(info_element->data[3+offset] & (1<<(ieee->assoc_id%8)))
1753 network->dtim_data |= IEEE80211_DTIM_UCAST;
1754
1755
1756 break;
1757
1758 case MFIE_TYPE_ERP:
1759 network->erp_value = info_element->data[0];
1760 network->flags |= NETWORK_HAS_ERP_VALUE;
1761 IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
1762 network->erp_value);
1763 break;
1764 case MFIE_TYPE_IBSS_SET:
1765 network->atim_window = info_element->data[0];
1766 IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
1767 network->atim_window);
1768 break;
1769
1770 case MFIE_TYPE_CHALLENGE:
1771 IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
1772 break;
1773
1774 case MFIE_TYPE_GENERIC:
1775 IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
1776 info_element->len);
1777 if (!ieee80211_parse_qos_info_param_IE(info_element,
1778 network))
1779 break;
1780
1781 if (info_element->len >= 4 &&
1782 info_element->data[0] == 0x00 &&
1783 info_element->data[1] == 0x50 &&
1784 info_element->data[2] == 0xf2 &&
1785 info_element->data[3] == 0x01) {
1786 network->wpa_ie_len = min(info_element->len + 2,
1787 MAX_WPA_IE_LEN);
1788 memcpy(network->wpa_ie, info_element,
1789 network->wpa_ie_len);
1790 break;
1791 }
1792
1793#ifdef THOMAS_TURBO
1794 if (info_element->len == 7 &&
1795 info_element->data[0] == 0x00 &&
1796 info_element->data[1] == 0xe0 &&
1797 info_element->data[2] == 0x4c &&
1798 info_element->data[3] == 0x01 &&
1799 info_element->data[4] == 0x02) {
1800 network->Turbo_Enable = 1;
1801 }
1802#endif
1803
1804
1805 if(tmp_htcap_len == 0){
1806 if(info_element->len >= 4 &&
1807 info_element->data[0] == 0x00 &&
1808 info_element->data[1] == 0x90 &&
1809 info_element->data[2] == 0x4c &&
1810 info_element->data[3] == 0x033){
1811
1812 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
1813 if(tmp_htcap_len != 0){
1814 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1815 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
1816 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
1817 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
1818 }
1819 }
1820 if(tmp_htcap_len != 0)
1821 network->bssht.bdSupportHT = true;
1822 else
1823 network->bssht.bdSupportHT = false;
1824 }
1825
1826
1827 if(tmp_htinfo_len == 0){
1828 if(info_element->len >= 4 &&
1829 info_element->data[0] == 0x00 &&
1830 info_element->data[1] == 0x90 &&
1831 info_element->data[2] == 0x4c &&
1832 info_element->data[3] == 0x034){
1833
1834 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
1835 if(tmp_htinfo_len != 0){
1836 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1837 if(tmp_htinfo_len){
1838 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
1839 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
1840 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
1841 }
1842
1843 }
1844
1845 }
1846 }
1847
1848 if(ieee->aggregation){
1849 if(network->bssht.bdSupportHT){
1850 if(info_element->len >= 4 &&
1851 info_element->data[0] == 0x00 &&
1852 info_element->data[1] == 0xe0 &&
1853 info_element->data[2] == 0x4c &&
1854 info_element->data[3] == 0x02){
1855
1856 ht_realtek_agg_len = min(info_element->len,(u8)MAX_IE_LEN);
1857 memcpy(ht_realtek_agg_buf,info_element->data,info_element->len);
1858
1859 }
1860 if(ht_realtek_agg_len >= 5){
1861 network->bssht.bdRT2RTAggregation = true;
1862
1863 if((ht_realtek_agg_buf[4] == 1) && (ht_realtek_agg_buf[5] & 0x02))
1864 network->bssht.bdRT2RTLongSlotTime = true;
1865 }
1866 }
1867
1868 }
1869
1870
1871 {
1872 if ((info_element->len >= 3 &&
1873 info_element->data[0] == 0x00 &&
1874 info_element->data[1] == 0x05 &&
1875 info_element->data[2] == 0xb5) ||
1876 (info_element->len >= 3 &&
1877 info_element->data[0] == 0x00 &&
1878 info_element->data[1] == 0x0a &&
1879 info_element->data[2] == 0xf7) ||
1880 (info_element->len >= 3 &&
1881 info_element->data[0] == 0x00 &&
1882 info_element->data[1] == 0x10 &&
1883 info_element->data[2] == 0x18)){
1884
1885 network->broadcom_cap_exist = true;
1886
1887 }
1888 }
1889 if(info_element->len >= 3 &&
1890 info_element->data[0] == 0x00 &&
1891 info_element->data[1] == 0x0c &&
1892 info_element->data[2] == 0x43)
1893 {
1894 network->ralink_cap_exist = true;
1895 }
1896 else
1897 network->ralink_cap_exist = false;
1898
1899 if((info_element->len >= 3 &&
1900 info_element->data[0] == 0x00 &&
1901 info_element->data[1] == 0x03 &&
1902 info_element->data[2] == 0x7f) ||
1903 (info_element->len >= 3 &&
1904 info_element->data[0] == 0x00 &&
1905 info_element->data[1] == 0x13 &&
1906 info_element->data[2] == 0x74))
1907 {
1908 printk("========>%s(): athros AP is exist\n",__func__);
1909 network->atheros_cap_exist = true;
1910 }
1911 else
1912 network->atheros_cap_exist = false;
1913
1914 if(info_element->len >= 3 &&
1915 info_element->data[0] == 0x00 &&
1916 info_element->data[1] == 0x40 &&
1917 info_element->data[2] == 0x96)
1918 {
1919 network->cisco_cap_exist = true;
1920 }
1921 else
1922 network->cisco_cap_exist = false;
1923
1924 if (info_element->len > 4 &&
1925 info_element->data[0] == 0x00 &&
1926 info_element->data[1] == 0x40 &&
1927 info_element->data[2] == 0x96 &&
1928 info_element->data[3] == 0x01)
1929 {
1930 if(info_element->len == 6)
1931 {
1932 memcpy(network->CcxRmState, &info_element[4], 2);
1933 if(network->CcxRmState[0] != 0)
1934 {
1935 network->bCcxRmEnable = true;
1936 }
1937 else
1938 network->bCcxRmEnable = false;
1939
1940
1941
1942 network->MBssidMask = network->CcxRmState[1] & 0x07;
1943 if(network->MBssidMask != 0)
1944 {
1945 network->bMBssidValid = true;
1946 network->MBssidMask = 0xff << (network->MBssidMask);
1947 ether_addr_copy(network->MBssid, network->bssid);
1948 network->MBssid[5] &= network->MBssidMask;
1949 }
1950 else
1951 {
1952 network->bMBssidValid = false;
1953 }
1954 }
1955 else
1956 {
1957 network->bCcxRmEnable = false;
1958 }
1959 }
1960 if (info_element->len > 4 &&
1961 info_element->data[0] == 0x00 &&
1962 info_element->data[1] == 0x40 &&
1963 info_element->data[2] == 0x96 &&
1964 info_element->data[3] == 0x03)
1965 {
1966 if(info_element->len == 5)
1967 {
1968 network->bWithCcxVerNum = true;
1969 network->BssCcxVerNumber = info_element->data[4];
1970 }
1971 else
1972 {
1973 network->bWithCcxVerNum = false;
1974 network->BssCcxVerNumber = 0;
1975 }
1976 }
1977 break;
1978
1979 case MFIE_TYPE_RSN:
1980 IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
1981 info_element->len);
1982 network->rsn_ie_len = min(info_element->len + 2,
1983 MAX_WPA_IE_LEN);
1984 memcpy(network->rsn_ie, info_element,
1985 network->rsn_ie_len);
1986 break;
1987
1988
1989 case MFIE_TYPE_HT_CAP:
1990 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_CAP: %d bytes\n",
1991 info_element->len);
1992 tmp_htcap_len = min(info_element->len,(u8)MAX_IE_LEN);
1993 if(tmp_htcap_len != 0){
1994 network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
1995 network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf)?\
1996 sizeof(network->bssht.bdHTCapBuf):tmp_htcap_len;
1997 memcpy(network->bssht.bdHTCapBuf,info_element->data,network->bssht.bdHTCapLen);
1998
1999
2000
2001
2002 network->bssht.bdSupportHT = true;
2003 }
2004 else
2005 network->bssht.bdSupportHT = false;
2006 break;
2007
2008
2009 case MFIE_TYPE_HT_INFO:
2010 IEEE80211_DEBUG_SCAN("MFIE_TYPE_HT_INFO: %d bytes\n",
2011 info_element->len);
2012 tmp_htinfo_len = min(info_element->len,(u8)MAX_IE_LEN);
2013 if(tmp_htinfo_len){
2014 network->bssht.bdHTSpecVer = HT_SPEC_VER_IEEE;
2015 network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf)?\
2016 sizeof(network->bssht.bdHTInfoBuf):tmp_htinfo_len;
2017 memcpy(network->bssht.bdHTInfoBuf,info_element->data,network->bssht.bdHTInfoLen);
2018 }
2019 break;
2020
2021 case MFIE_TYPE_AIRONET:
2022 IEEE80211_DEBUG_SCAN("MFIE_TYPE_AIRONET: %d bytes\n",
2023 info_element->len);
2024 if(info_element->len >IE_CISCO_FLAG_POSITION)
2025 {
2026 network->bWithAironetIE = true;
2027
2028
2029
2030
2031 if( (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_MIC) ||
2032 (info_element->data[IE_CISCO_FLAG_POSITION]&SUPPORT_CKIP_PK) )
2033 {
2034 network->bCkipSupported = true;
2035 }
2036 else
2037 {
2038 network->bCkipSupported = false;
2039 }
2040 }
2041 else
2042 {
2043 network->bWithAironetIE = false;
2044 network->bCkipSupported = false;
2045 }
2046 break;
2047 case MFIE_TYPE_QOS_PARAMETER:
2048 printk(KERN_ERR
2049 "QoS Error need to parse QOS_PARAMETER IE\n");
2050 break;
2051
2052 case MFIE_TYPE_COUNTRY:
2053 IEEE80211_DEBUG_SCAN("MFIE_TYPE_COUNTRY: %d bytes\n",
2054 info_element->len);
2055 ieee80211_extract_country_ie(ieee, info_element, network, network->bssid);
2056 break;
2057
2058 default:
2059 IEEE80211_DEBUG_MGMT
2060 ("Unsupported info element: %s (%d)\n",
2061 get_info_element_string(info_element->id),
2062 info_element->id);
2063 break;
2064 }
2065
2066 length -= sizeof(*info_element) + info_element->len;
2067 info_element =
2068 (struct ieee80211_info_element *)&info_element->
2069 data[info_element->len];
2070 }
2071
2072 if(!network->atheros_cap_exist && !network->broadcom_cap_exist &&
2073 !network->cisco_cap_exist && !network->ralink_cap_exist && !network->bssht.bdRT2RTAggregation)
2074 {
2075 network->unknown_cap_exist = true;
2076 }
2077 else
2078 {
2079 network->unknown_cap_exist = false;
2080 }
2081 return 0;
2082}
2083
2084static inline u8 ieee80211_SignalStrengthTranslate(
2085 u8 CurrSS
2086 )
2087{
2088 u8 RetSS;
2089
2090
2091 if(CurrSS >= 71 && CurrSS <= 100)
2092 {
2093 RetSS = 90 + ((CurrSS - 70) / 3);
2094 }
2095 else if(CurrSS >= 41 && CurrSS <= 70)
2096 {
2097 RetSS = 78 + ((CurrSS - 40) / 3);
2098 }
2099 else if(CurrSS >= 31 && CurrSS <= 40)
2100 {
2101 RetSS = 66 + (CurrSS - 30);
2102 }
2103 else if(CurrSS >= 21 && CurrSS <= 30)
2104 {
2105 RetSS = 54 + (CurrSS - 20);
2106 }
2107 else if(CurrSS >= 5 && CurrSS <= 20)
2108 {
2109 RetSS = 42 + (((CurrSS - 5) * 2) / 3);
2110 }
2111 else if(CurrSS == 4)
2112 {
2113 RetSS = 36;
2114 }
2115 else if(CurrSS == 3)
2116 {
2117 RetSS = 27;
2118 }
2119 else if(CurrSS == 2)
2120 {
2121 RetSS = 18;
2122 }
2123 else if(CurrSS == 1)
2124 {
2125 RetSS = 9;
2126 }
2127 else
2128 {
2129 RetSS = CurrSS;
2130 }
2131
2132
2133
2134
2135
2136
2137 return RetSS;
2138}
2139
2140
2141static long ieee80211_translate_todbm(u8 signal_strength_index)
2142{
2143 long signal_power;
2144
2145
2146 signal_power = (long)((signal_strength_index + 1) >> 1);
2147 signal_power -= 95;
2148
2149 return signal_power;
2150}
2151
2152static inline int ieee80211_network_init(
2153 struct ieee80211_device *ieee,
2154 struct ieee80211_probe_response *beacon,
2155 struct ieee80211_network *network,
2156 struct ieee80211_rx_stats *stats)
2157{
2158#ifdef CONFIG_IEEE80211_DEBUG
2159
2160
2161#endif
2162
2163 network->qos_data.active = 0;
2164 network->qos_data.supported = 0;
2165 network->qos_data.param_count = 0;
2166 network->qos_data.old_param_count = 0;
2167
2168
2169 memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
2170 network->capability = le16_to_cpu(beacon->capability);
2171 network->last_scanned = jiffies;
2172 network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
2173 network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
2174 network->beacon_interval = le16_to_cpu(beacon->beacon_interval);
2175
2176 network->listen_interval = 0x0A;
2177 network->rates_len = network->rates_ex_len = 0;
2178 network->last_associate = 0;
2179 network->ssid_len = 0;
2180 network->flags = 0;
2181 network->atim_window = 0;
2182 network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
2183 0x3 : 0x0;
2184 network->berp_info_valid = false;
2185 network->broadcom_cap_exist = false;
2186 network->ralink_cap_exist = false;
2187 network->atheros_cap_exist = false;
2188 network->cisco_cap_exist = false;
2189 network->unknown_cap_exist = false;
2190#ifdef THOMAS_TURBO
2191 network->Turbo_Enable = 0;
2192#endif
2193 network->CountryIeLen = 0;
2194 memset(network->CountryIeBuf, 0, MAX_IE_LEN);
2195
2196
2197 HTInitializeBssDesc(&network->bssht);
2198 if (stats->freq == IEEE80211_52GHZ_BAND) {
2199
2200 network->channel = stats->received_channel;
2201 } else
2202 network->flags |= NETWORK_HAS_CCK;
2203
2204 network->wpa_ie_len = 0;
2205 network->rsn_ie_len = 0;
2206
2207 if (ieee80211_parse_info_param
2208 (ieee,beacon->info_element, stats->len - sizeof(*beacon), network, stats))
2209 return 1;
2210
2211 network->mode = 0;
2212 if (stats->freq == IEEE80211_52GHZ_BAND)
2213 network->mode = IEEE_A;
2214 else {
2215 if (network->flags & NETWORK_HAS_OFDM)
2216 network->mode |= IEEE_G;
2217 if (network->flags & NETWORK_HAS_CCK)
2218 network->mode |= IEEE_B;
2219 }
2220
2221 if (network->mode == 0) {
2222 IEEE80211_DEBUG_SCAN("Filtered out '%s (%pM)' "
2223 "network.\n",
2224 escape_essid(network->ssid,
2225 network->ssid_len),
2226 network->bssid);
2227 return 1;
2228 }
2229
2230 if(network->bssht.bdSupportHT){
2231 if(network->mode == IEEE_A)
2232 network->mode = IEEE_N_5G;
2233 else if(network->mode & (IEEE_G | IEEE_B))
2234 network->mode = IEEE_N_24G;
2235 }
2236 if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
2237 network->flags |= NETWORK_EMPTY_ESSID;
2238
2239 stats->signal = 30 + (stats->SignalStrength * 70) / 100;
2240
2241 stats->noise = ieee80211_translate_todbm((u8)(100-stats->signal)) -25;
2242
2243 memcpy(&network->stats, stats, sizeof(network->stats));
2244
2245 return 0;
2246}
2247
2248static inline int is_same_network(struct ieee80211_network *src,
2249 struct ieee80211_network *dst, struct ieee80211_device *ieee)
2250{
2251
2252
2253
2254
2255 return
2256 (((src->ssid_len == dst->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2257 (src->channel == dst->channel) &&
2258 !memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
2259
2260 (!memcmp(src->ssid, dst->ssid, src->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) &&
2261 ((src->capability & WLAN_CAPABILITY_IBSS) ==
2262 (dst->capability & WLAN_CAPABILITY_IBSS)) &&
2263 ((src->capability & WLAN_CAPABILITY_BSS) ==
2264 (dst->capability & WLAN_CAPABILITY_BSS)));
2265}
2266
2267static inline void update_network(struct ieee80211_network *dst,
2268 struct ieee80211_network *src)
2269{
2270 int qos_active;
2271 u8 old_param;
2272
2273 memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
2274 dst->capability = src->capability;
2275 memcpy(dst->rates, src->rates, src->rates_len);
2276 dst->rates_len = src->rates_len;
2277 memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len);
2278 dst->rates_ex_len = src->rates_ex_len;
2279 if (src->ssid_len > 0)
2280 {
2281 memset(dst->ssid, 0, dst->ssid_len);
2282 dst->ssid_len = src->ssid_len;
2283 memcpy(dst->ssid, src->ssid, src->ssid_len);
2284 }
2285 dst->mode = src->mode;
2286 dst->flags = src->flags;
2287 dst->time_stamp[0] = src->time_stamp[0];
2288 dst->time_stamp[1] = src->time_stamp[1];
2289 if (src->flags & NETWORK_HAS_ERP_VALUE)
2290 {
2291 dst->erp_value = src->erp_value;
2292 dst->berp_info_valid = src->berp_info_valid = true;
2293 }
2294 dst->beacon_interval = src->beacon_interval;
2295 dst->listen_interval = src->listen_interval;
2296 dst->atim_window = src->atim_window;
2297 dst->dtim_period = src->dtim_period;
2298 dst->dtim_data = src->dtim_data;
2299 dst->last_dtim_sta_time[0] = src->last_dtim_sta_time[0];
2300 dst->last_dtim_sta_time[1] = src->last_dtim_sta_time[1];
2301 memcpy(&dst->tim, &src->tim, sizeof(struct ieee80211_tim_parameters));
2302
2303 dst->bssht.bdSupportHT = src->bssht.bdSupportHT;
2304 dst->bssht.bdRT2RTAggregation = src->bssht.bdRT2RTAggregation;
2305 dst->bssht.bdHTCapLen= src->bssht.bdHTCapLen;
2306 memcpy(dst->bssht.bdHTCapBuf,src->bssht.bdHTCapBuf,src->bssht.bdHTCapLen);
2307 dst->bssht.bdHTInfoLen= src->bssht.bdHTInfoLen;
2308 memcpy(dst->bssht.bdHTInfoBuf,src->bssht.bdHTInfoBuf,src->bssht.bdHTInfoLen);
2309 dst->bssht.bdHTSpecVer = src->bssht.bdHTSpecVer;
2310 dst->bssht.bdRT2RTLongSlotTime = src->bssht.bdRT2RTLongSlotTime;
2311 dst->broadcom_cap_exist = src->broadcom_cap_exist;
2312 dst->ralink_cap_exist = src->ralink_cap_exist;
2313 dst->atheros_cap_exist = src->atheros_cap_exist;
2314 dst->cisco_cap_exist = src->cisco_cap_exist;
2315 dst->unknown_cap_exist = src->unknown_cap_exist;
2316 memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
2317 dst->wpa_ie_len = src->wpa_ie_len;
2318 memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len);
2319 dst->rsn_ie_len = src->rsn_ie_len;
2320
2321 dst->last_scanned = jiffies;
2322
2323
2324 qos_active = dst->qos_data.active;
2325
2326 old_param = dst->qos_data.param_count;
2327 if(dst->flags & NETWORK_HAS_QOS_MASK)
2328 memcpy(&dst->qos_data, &src->qos_data,
2329 sizeof(struct ieee80211_qos_data));
2330 else {
2331 dst->qos_data.supported = src->qos_data.supported;
2332 dst->qos_data.param_count = src->qos_data.param_count;
2333 }
2334
2335 if (dst->qos_data.supported == 1) {
2336 dst->QoS_Enable = 1;
2337 if(dst->ssid_len)
2338 IEEE80211_DEBUG_QOS
2339 ("QoS the network %s is QoS supported\n",
2340 dst->ssid);
2341 else
2342 IEEE80211_DEBUG_QOS
2343 ("QoS the network is QoS supported\n");
2344 }
2345 dst->qos_data.active = qos_active;
2346 dst->qos_data.old_param_count = old_param;
2347
2348
2349 dst->wmm_info = src->wmm_info;
2350 if (src->wmm_param[0].aci_aifsn|| \
2351 src->wmm_param[1].aci_aifsn|| \
2352 src->wmm_param[2].aci_aifsn|| \
2353 src->wmm_param[3].aci_aifsn) {
2354 memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN);
2355 }
2356
2357#ifdef THOMAS_TURBO
2358 dst->Turbo_Enable = src->Turbo_Enable;
2359#endif
2360
2361 dst->CountryIeLen = src->CountryIeLen;
2362 memcpy(dst->CountryIeBuf, src->CountryIeBuf, src->CountryIeLen);
2363
2364
2365 dst->bWithAironetIE = src->bWithAironetIE;
2366 dst->bCkipSupported = src->bCkipSupported;
2367 memcpy(dst->CcxRmState, src->CcxRmState, 2);
2368 dst->bCcxRmEnable = src->bCcxRmEnable;
2369 dst->MBssidMask = src->MBssidMask;
2370 dst->bMBssidValid = src->bMBssidValid;
2371 memcpy(dst->MBssid, src->MBssid, 6);
2372 dst->bWithCcxVerNum = src->bWithCcxVerNum;
2373 dst->BssCcxVerNumber = src->BssCcxVerNumber;
2374
2375}
2376
2377static inline int is_beacon(__le16 fc)
2378{
2379 return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
2380}
2381
2382static inline void ieee80211_process_probe_response(
2383 struct ieee80211_device *ieee,
2384 struct ieee80211_probe_response *beacon,
2385 struct ieee80211_rx_stats *stats)
2386{
2387 struct ieee80211_network *network;
2388 struct ieee80211_network *target;
2389 struct ieee80211_network *oldest = NULL;
2390#ifdef CONFIG_IEEE80211_DEBUG
2391 struct ieee80211_info_element *info_element = &beacon->info_element[0];
2392#endif
2393 int fc = WLAN_FC_GET_STYPE(le16_to_cpu(beacon->header.frame_ctl));
2394 unsigned long flags;
2395 short renew;
2396 u16 capability;
2397
2398
2399 network = kzalloc(sizeof(*network), GFP_ATOMIC);
2400 if (!network)
2401 goto out;
2402
2403 capability = le16_to_cpu(beacon->capability);
2404 IEEE80211_DEBUG_SCAN(
2405 "'%s' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
2406 escape_essid(info_element->data, info_element->len),
2407 beacon->header.addr3,
2408 (capability & (1 << 0xf)) ? '1' : '0',
2409 (capability & (1 << 0xe)) ? '1' : '0',
2410 (capability & (1 << 0xd)) ? '1' : '0',
2411 (capability & (1 << 0xc)) ? '1' : '0',
2412 (capability & (1 << 0xb)) ? '1' : '0',
2413 (capability & (1 << 0xa)) ? '1' : '0',
2414 (capability & (1 << 0x9)) ? '1' : '0',
2415 (capability & (1 << 0x8)) ? '1' : '0',
2416 (capability & (1 << 0x7)) ? '1' : '0',
2417 (capability & (1 << 0x6)) ? '1' : '0',
2418 (capability & (1 << 0x5)) ? '1' : '0',
2419 (capability & (1 << 0x4)) ? '1' : '0',
2420 (capability & (1 << 0x3)) ? '1' : '0',
2421 (capability & (1 << 0x2)) ? '1' : '0',
2422 (capability & (1 << 0x1)) ? '1' : '0',
2423 (capability & (1 << 0x0)) ? '1' : '0');
2424
2425 if (ieee80211_network_init(ieee, beacon, network, stats)) {
2426 IEEE80211_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n",
2427 escape_essid(info_element->data,
2428 info_element->len),
2429 beacon->header.addr3,
2430 fc == IEEE80211_STYPE_PROBE_RESP ?
2431 "PROBE RESPONSE" : "BEACON");
2432 goto out;
2433 }
2434
2435
2436
2437
2438
2439
2440
2441
2442 if (!is_legal_channel(ieee, network->channel))
2443 goto out;
2444 if (ieee->bGlobalDomain)
2445 {
2446 if (fc == IEEE80211_STYPE_PROBE_RESP)
2447 {
2448
2449 if(IS_COUNTRY_IE_VALID(ieee) )
2450 {
2451 if (!is_legal_channel(ieee, network->channel)) {
2452 printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network->channel);
2453 goto out;
2454 }
2455 }
2456
2457 else
2458 {
2459
2460 if (network->channel > 11)
2461 {
2462 printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network->channel);
2463 goto out;
2464 }
2465 }
2466 }
2467 else
2468 {
2469
2470 if(IS_COUNTRY_IE_VALID(ieee) )
2471 {
2472 if (!is_legal_channel(ieee, network->channel)) {
2473 printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n",network->channel);
2474 goto out;
2475 }
2476 }
2477
2478 else
2479 {
2480
2481 if (network->channel > 14)
2482 {
2483 printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n",network->channel);
2484 goto out;
2485 }
2486 }
2487 }
2488 }
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500 spin_lock_irqsave(&ieee->lock, flags);
2501
2502 if (is_same_network(&ieee->current_network, network, ieee)) {
2503 update_network(&ieee->current_network, network);
2504 if ((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
2505 && ieee->current_network.berp_info_valid){
2506 if(ieee->current_network.erp_value& ERP_UseProtection)
2507 ieee->current_network.buseprotection = true;
2508 else
2509 ieee->current_network.buseprotection = false;
2510 }
2511 if(is_beacon(beacon->header.frame_ctl))
2512 {
2513 if(ieee->state == IEEE80211_LINKED)
2514 ieee->LinkDetectInfo.NumRecvBcnInPeriod++;
2515 }
2516 else
2517 network->flags = (~NETWORK_EMPTY_ESSID & network->flags)|(NETWORK_EMPTY_ESSID & ieee->current_network.flags);
2518 }
2519
2520 list_for_each_entry(target, &ieee->network_list, list) {
2521 if (is_same_network(target, network, ieee))
2522 break;
2523 if ((oldest == NULL) ||
2524 (target->last_scanned < oldest->last_scanned))
2525 oldest = target;
2526 }
2527
2528
2529
2530 if (&target->list == &ieee->network_list) {
2531 if (list_empty(&ieee->network_free_list)) {
2532
2533 list_del(&oldest->list);
2534 target = oldest;
2535 IEEE80211_DEBUG_SCAN("Expired '%s' (%pM) from "
2536 "network list.\n",
2537 escape_essid(target->ssid,
2538 target->ssid_len),
2539 target->bssid);
2540 } else {
2541
2542 target = list_entry(ieee->network_free_list.next,
2543 struct ieee80211_network, list);
2544 list_del(ieee->network_free_list.next);
2545 }
2546
2547
2548#ifdef CONFIG_IEEE80211_DEBUG
2549 IEEE80211_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n",
2550 escape_essid(network->ssid,
2551 network->ssid_len),
2552 network->bssid,
2553 fc == IEEE80211_STYPE_PROBE_RESP ?
2554 "PROBE RESPONSE" : "BEACON");
2555#endif
2556 memcpy(target, network, sizeof(*target));
2557 list_add_tail(&target->list, &ieee->network_list);
2558 if(ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE)
2559 ieee80211_softmac_new_net(ieee,network);
2560 } else {
2561 IEEE80211_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n",
2562 escape_essid(target->ssid,
2563 target->ssid_len),
2564 target->bssid,
2565 fc == IEEE80211_STYPE_PROBE_RESP ?
2566 "PROBE RESPONSE" : "BEACON");
2567
2568
2569
2570
2571
2572 renew = !time_after(target->last_scanned + ieee->scan_age, jiffies);
2573
2574 if(is_beacon(beacon->header.frame_ctl) == 0)
2575 network->flags = (~NETWORK_EMPTY_ESSID & network->flags)|(NETWORK_EMPTY_ESSID & target->flags);
2576
2577
2578 if(((network->flags & NETWORK_EMPTY_ESSID) == NETWORK_EMPTY_ESSID) \
2579 && (((network->ssid_len > 0) && (strncmp(target->ssid, network->ssid, network->ssid_len)))\
2580 ||((ieee->current_network.ssid_len == network->ssid_len)&&(strncmp(ieee->current_network.ssid, network->ssid, network->ssid_len) == 0)&&(ieee->state == IEEE80211_NOLINK))))
2581 renew = 1;
2582
2583
2584 update_network(target, network);
2585 if(renew && (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE))
2586 ieee80211_softmac_new_net(ieee,network);
2587 }
2588
2589 spin_unlock_irqrestore(&ieee->lock, flags);
2590 if (is_beacon(beacon->header.frame_ctl)&&is_same_network(&ieee->current_network, network, ieee)&&\
2591 (ieee->state == IEEE80211_LINKED)) {
2592 if (ieee->handle_beacon != NULL) {
2593 ieee->handle_beacon(ieee->dev,beacon,&ieee->current_network);
2594 }
2595 }
2596
2597out:
2598 kfree(network);
2599}
2600
2601void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2602 struct rtl_80211_hdr_4addr *header,
2603 struct ieee80211_rx_stats *stats)
2604{
2605 switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) {
2606
2607 case IEEE80211_STYPE_BEACON:
2608 IEEE80211_DEBUG_MGMT("received BEACON (%d)\n",
2609 WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)));
2610 IEEE80211_DEBUG_SCAN("Beacon\n");
2611 ieee80211_process_probe_response(
2612 ieee, (struct ieee80211_probe_response *)header, stats);
2613 break;
2614
2615 case IEEE80211_STYPE_PROBE_RESP:
2616 IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n",
2617 WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)));
2618 IEEE80211_DEBUG_SCAN("Probe response\n");
2619 ieee80211_process_probe_response(
2620 ieee, (struct ieee80211_probe_response *)header, stats);
2621 break;
2622
2623 }
2624}
2625EXPORT_SYMBOL(ieee80211_rx_mgt);
2626
