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c8d86be3 GKH |
1 | /* |
2 | * Original code based Host AP (software wireless LAN access point) driver | |
3 | * for Intersil Prism2/2.5/3 - hostap.o module, common routines | |
4 | * | |
5 | * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen | |
6 | * <jkmaline@cc.hut.fi> | |
7 | * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
8 | * Copyright (c) 2004, Intel Corporation | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. See README and COPYING for | |
13 | * more details. | |
14 | ****************************************************************************** | |
15 | ||
16 | Few modifications for Realtek's Wi-Fi drivers by | |
17 | Andrea Merello <andreamrl@tiscali.it> | |
18 | ||
19 | A special thanks goes to Realtek for their support ! | |
20 | ||
21 | ******************************************************************************/ | |
22 | ||
23 | ||
24 | #include <linux/compiler.h> | |
25 | //#include <linux/config.h> | |
26 | #include <linux/errno.h> | |
27 | #include <linux/if_arp.h> | |
28 | #include <linux/in6.h> | |
29 | #include <linux/in.h> | |
30 | #include <linux/ip.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/proc_fs.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/tcp.h> | |
39 | #include <linux/types.h> | |
40 | #include <linux/version.h> | |
41 | #include <linux/wireless.h> | |
42 | #include <linux/etherdevice.h> | |
43 | #include <asm/uaccess.h> | |
44 | #include <linux/ctype.h> | |
45 | ||
46 | #include "ieee80211.h" | |
47 | #ifdef ENABLE_DOT11D | |
48 | #include "dot11d.h" | |
49 | #endif | |
50 | static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee, | |
51 | struct sk_buff *skb, | |
52 | struct ieee80211_rx_stats *rx_stats) | |
53 | { | |
54 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
55 | u16 fc = le16_to_cpu(hdr->frame_ctl); | |
56 | ||
57 | skb->dev = ieee->dev; | |
58 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) | |
59 | skb_reset_mac_header(skb); | |
60 | #else | |
61 | skb->mac.raw = skb->data; | |
62 | #endif | |
63 | skb_pull(skb, ieee80211_get_hdrlen(fc)); | |
64 | skb->pkt_type = PACKET_OTHERHOST; | |
65 | skb->protocol = __constant_htons(ETH_P_80211_RAW); | |
66 | memset(skb->cb, 0, sizeof(skb->cb)); | |
67 | netif_rx(skb); | |
68 | } | |
69 | ||
70 | ||
71 | /* Called only as a tasklet (software IRQ) */ | |
72 | static struct ieee80211_frag_entry * | |
73 | ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq, | |
74 | unsigned int frag, u8 tid,u8 *src, u8 *dst) | |
75 | { | |
76 | struct ieee80211_frag_entry *entry; | |
77 | int i; | |
78 | ||
79 | for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) { | |
80 | entry = &ieee->frag_cache[tid][i]; | |
81 | if (entry->skb != NULL && | |
82 | time_after(jiffies, entry->first_frag_time + 2 * HZ)) { | |
83 | IEEE80211_DEBUG_FRAG( | |
84 | "expiring fragment cache entry " | |
85 | "seq=%u last_frag=%u\n", | |
86 | entry->seq, entry->last_frag); | |
87 | dev_kfree_skb_any(entry->skb); | |
88 | entry->skb = NULL; | |
89 | } | |
90 | ||
91 | if (entry->skb != NULL && entry->seq == seq && | |
92 | (entry->last_frag + 1 == frag || frag == -1) && | |
93 | memcmp(entry->src_addr, src, ETH_ALEN) == 0 && | |
94 | memcmp(entry->dst_addr, dst, ETH_ALEN) == 0) | |
95 | return entry; | |
96 | } | |
97 | ||
98 | return NULL; | |
99 | } | |
100 | ||
101 | /* Called only as a tasklet (software IRQ) */ | |
102 | static struct sk_buff * | |
103 | ieee80211_frag_cache_get(struct ieee80211_device *ieee, | |
104 | struct ieee80211_hdr *hdr) | |
105 | { | |
106 | struct sk_buff *skb = NULL; | |
107 | u16 fc = le16_to_cpu(hdr->frame_ctl); | |
108 | u16 sc = le16_to_cpu(hdr->seq_ctl); | |
109 | unsigned int frag = WLAN_GET_SEQ_FRAG(sc); | |
110 | unsigned int seq = WLAN_GET_SEQ_SEQ(sc); | |
111 | struct ieee80211_frag_entry *entry; | |
112 | struct ieee80211_hdr_3addr_QOS *hdr_3addr_QoS; | |
113 | struct ieee80211_hdr_QOS *hdr_4addr_QoS; | |
114 | u8 tid; | |
115 | ||
116 | #ifdef _RTL8187_EXT_PATCH_ | |
117 | if(ieee->iw_mode == ieee->iw_ext_mode) | |
118 | { | |
119 | tid = (hdr->addr2[ETH_ALEN-2] ^ hdr->addr2[ETH_ALEN-1]) & IEEE80211_QOS_TID; | |
120 | } | |
121 | else | |
122 | #endif | |
123 | if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) { | |
124 | hdr_4addr_QoS = (struct ieee80211_hdr_QOS *)hdr; | |
125 | tid = le16_to_cpu(hdr_4addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
126 | tid = UP2AC(tid); | |
127 | tid ++; | |
128 | } else if (IEEE80211_QOS_HAS_SEQ(fc)) { | |
129 | hdr_3addr_QoS = (struct ieee80211_hdr_3addr_QOS *)hdr; | |
130 | tid = le16_to_cpu(hdr_3addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
131 | tid = UP2AC(tid); | |
132 | tid ++; | |
133 | } else { | |
134 | tid = 0; | |
135 | } | |
136 | ||
137 | if (frag == 0) { | |
138 | /* Reserve enough space to fit maximum frame length */ | |
139 | skb = dev_alloc_skb(ieee->dev->mtu + | |
140 | sizeof(struct ieee80211_hdr) + | |
141 | 8 /* LLC */ + | |
142 | 2 /* alignment */ + | |
143 | 8 /* WEP */ + | |
144 | ETH_ALEN /* WDS */ + | |
145 | (IEEE80211_QOS_HAS_SEQ(fc)?2:0) /* QOS Control */); | |
146 | if (skb == NULL) | |
147 | return NULL; | |
148 | ||
149 | entry = &ieee->frag_cache[tid][ieee->frag_next_idx[tid]]; | |
150 | ieee->frag_next_idx[tid]++; | |
151 | if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN) | |
152 | ieee->frag_next_idx[tid] = 0; | |
153 | ||
154 | if (entry->skb != NULL) | |
155 | dev_kfree_skb_any(entry->skb); | |
156 | ||
157 | entry->first_frag_time = jiffies; | |
158 | entry->seq = seq; | |
159 | entry->last_frag = frag; | |
160 | entry->skb = skb; | |
161 | memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); | |
162 | memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); | |
163 | } else { | |
164 | /* received a fragment of a frame for which the head fragment | |
165 | * should have already been received */ | |
166 | entry = ieee80211_frag_cache_find(ieee, seq, frag, tid,hdr->addr2, | |
167 | hdr->addr1); | |
168 | if (entry != NULL) { | |
169 | entry->last_frag = frag; | |
170 | skb = entry->skb; | |
171 | } | |
172 | } | |
173 | ||
174 | return skb; | |
175 | } | |
176 | ||
177 | ||
178 | /* Called only as a tasklet (software IRQ) */ | |
179 | static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, | |
180 | struct ieee80211_hdr *hdr) | |
181 | { | |
182 | u16 fc = le16_to_cpu(hdr->frame_ctl); | |
183 | u16 sc = le16_to_cpu(hdr->seq_ctl); | |
184 | unsigned int seq = WLAN_GET_SEQ_SEQ(sc); | |
185 | struct ieee80211_frag_entry *entry; | |
186 | struct ieee80211_hdr_3addr_QOS *hdr_3addr_QoS; | |
187 | struct ieee80211_hdr_QOS *hdr_4addr_QoS; | |
188 | u8 tid; | |
189 | ||
190 | #ifdef _RTL8187_EXT_PATCH_ | |
191 | if(ieee->iw_mode == ieee->iw_ext_mode) | |
192 | { | |
193 | tid = (hdr->addr2[ETH_ALEN-2] ^ hdr->addr2[ETH_ALEN-1]) & IEEE80211_QOS_TID; | |
194 | } | |
195 | else | |
196 | #endif | |
197 | if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) { | |
198 | hdr_4addr_QoS = (struct ieee80211_hdr_QOS *)hdr; | |
199 | tid = le16_to_cpu(hdr_4addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
200 | tid = UP2AC(tid); | |
201 | tid ++; | |
202 | } else if (IEEE80211_QOS_HAS_SEQ(fc)) { | |
203 | hdr_3addr_QoS = (struct ieee80211_hdr_3addr_QOS *)hdr; | |
204 | tid = le16_to_cpu(hdr_3addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
205 | tid = UP2AC(tid); | |
206 | tid ++; | |
207 | } else { | |
208 | tid = 0; | |
209 | } | |
210 | ||
211 | entry = ieee80211_frag_cache_find(ieee, seq, -1, tid,hdr->addr2, | |
212 | hdr->addr1); | |
213 | ||
214 | if (entry == NULL) { | |
215 | IEEE80211_DEBUG_FRAG( | |
216 | "could not invalidate fragment cache " | |
217 | "entry (seq=%u)\n", seq); | |
218 | return -1; | |
219 | } | |
220 | ||
221 | entry->skb = NULL; | |
222 | return 0; | |
223 | } | |
224 | ||
225 | ||
226 | ||
227 | /* ieee80211_rx_frame_mgtmt | |
228 | * | |
229 | * Responsible for handling management control frames | |
230 | * | |
231 | * Called by ieee80211_rx */ | |
232 | static inline int | |
233 | ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, | |
234 | struct ieee80211_rx_stats *rx_stats, u16 type, | |
235 | u16 stype) | |
236 | { | |
237 | struct ieee80211_hdr *hdr; | |
238 | ||
239 | // cheat the the hdr type | |
240 | hdr = (struct ieee80211_hdr *)skb->data; | |
241 | ||
242 | /* On the struct stats definition there is written that | |
243 | * this is not mandatory.... but seems that the probe | |
244 | * response parser uses it | |
245 | */ | |
246 | rx_stats->len = skb->len; | |
247 | ieee80211_rx_mgt(ieee,(struct ieee80211_hdr *)skb->data,rx_stats); | |
248 | ||
249 | if((ieee->state == IEEE80211_LINKED)&&(memcmp(hdr->addr3,ieee->current_network.bssid,ETH_ALEN))) { | |
250 | dev_kfree_skb_any(skb); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | ieee80211_rx_frame_softmac(ieee, skb, rx_stats, type, stype); | |
255 | ||
256 | dev_kfree_skb_any(skb); | |
257 | ||
258 | return 0; | |
259 | ||
260 | #ifdef NOT_YET | |
261 | if (ieee->iw_mode == IW_MODE_MASTER) { | |
262 | printk(KERN_DEBUG "%s: Master mode not yet suppported.\n", | |
263 | ieee->dev->name); | |
264 | return 0; | |
265 | /* | |
266 | hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr *) | |
267 | skb->data);*/ | |
268 | } | |
269 | ||
270 | if (ieee->hostapd && type == IEEE80211_TYPE_MGMT) { | |
271 | if (stype == WLAN_FC_STYPE_BEACON && | |
272 | ieee->iw_mode == IW_MODE_MASTER) { | |
273 | struct sk_buff *skb2; | |
274 | /* Process beacon frames also in kernel driver to | |
275 | * update STA(AP) table statistics */ | |
276 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
277 | if (skb2) | |
278 | hostap_rx(skb2->dev, skb2, rx_stats); | |
279 | } | |
280 | ||
281 | /* send management frames to the user space daemon for | |
282 | * processing */ | |
283 | ieee->apdevstats.rx_packets++; | |
284 | ieee->apdevstats.rx_bytes += skb->len; | |
285 | prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT); | |
286 | return 0; | |
287 | } | |
288 | ||
289 | if (ieee->iw_mode == IW_MODE_MASTER) { | |
290 | if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { | |
291 | printk(KERN_DEBUG "%s: unknown management frame " | |
292 | "(type=0x%02x, stype=0x%02x) dropped\n", | |
293 | skb->dev->name, type, stype); | |
294 | return -1; | |
295 | } | |
296 | ||
297 | hostap_rx(skb->dev, skb, rx_stats); | |
298 | return 0; | |
299 | } | |
300 | ||
301 | printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame " | |
302 | "received in non-Host AP mode\n", skb->dev->name); | |
303 | return -1; | |
304 | #endif | |
305 | } | |
306 | ||
307 | ||
308 | ||
309 | /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ | |
310 | /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ | |
311 | static unsigned char rfc1042_header[] = | |
312 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
313 | /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ | |
314 | static unsigned char bridge_tunnel_header[] = | |
315 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; | |
316 | /* No encapsulation header if EtherType < 0x600 (=length) */ | |
317 | ||
318 | /* Called by ieee80211_rx_frame_decrypt */ | |
319 | static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee, | |
320 | struct sk_buff *skb, size_t hdrlen) | |
321 | { | |
322 | struct net_device *dev = ieee->dev; | |
323 | u16 fc, ethertype; | |
324 | struct ieee80211_hdr *hdr; | |
325 | u8 *pos; | |
326 | ||
327 | if (skb->len < 24) | |
328 | return 0; | |
329 | ||
330 | hdr = (struct ieee80211_hdr *) skb->data; | |
331 | fc = le16_to_cpu(hdr->frame_ctl); | |
332 | ||
333 | /* check that the frame is unicast frame to us */ | |
334 | if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
335 | IEEE80211_FCTL_TODS && | |
336 | memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 && | |
337 | memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) { | |
338 | /* ToDS frame with own addr BSSID and DA */ | |
339 | } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
340 | IEEE80211_FCTL_FROMDS && | |
341 | memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) { | |
342 | /* FromDS frame with own addr as DA */ | |
343 | } else | |
344 | return 0; | |
345 | ||
346 | if (skb->len < 24 + 8) | |
347 | return 0; | |
348 | ||
349 | /* check for port access entity Ethernet type */ | |
350 | // pos = skb->data + 24; | |
351 | pos = skb->data + hdrlen; | |
352 | ethertype = (pos[6] << 8) | pos[7]; | |
353 | if (ethertype == ETH_P_PAE) | |
354 | return 1; | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | /* Called only as a tasklet (software IRQ), by ieee80211_rx */ | |
360 | static inline int | |
361 | ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, | |
362 | struct ieee80211_crypt_data *crypt) | |
363 | { | |
364 | struct ieee80211_hdr *hdr; | |
365 | int res, hdrlen; | |
366 | ||
367 | if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) | |
368 | return 0; | |
369 | ||
370 | hdr = (struct ieee80211_hdr *) skb->data; | |
371 | #ifdef _RTL8187_EXT_PATCH_ | |
372 | if((ieee->iw_mode == ieee->iw_ext_mode) && (ieee->ext_patch_ieee80211_rx_frame_get_hdrlen)) | |
373 | { | |
374 | hdrlen = ieee->ext_patch_ieee80211_rx_frame_get_hdrlen(ieee, skb); | |
375 | } | |
376 | else | |
377 | #endif | |
378 | hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); | |
379 | ||
380 | #ifdef CONFIG_IEEE80211_CRYPT_TKIP | |
381 | if (ieee->tkip_countermeasures && | |
382 | strcmp(crypt->ops->name, "TKIP") == 0) { | |
383 | if (net_ratelimit()) { | |
384 | printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " | |
385 | "received packet from " MAC_FMT "\n", | |
386 | ieee->dev->name, MAC_ARG(hdr->addr2)); | |
387 | } | |
388 | return -1; | |
389 | } | |
390 | #endif | |
391 | ||
392 | atomic_inc(&crypt->refcnt); | |
393 | res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); | |
394 | atomic_dec(&crypt->refcnt); | |
395 | if (res < 0) { | |
396 | IEEE80211_DEBUG_DROP( | |
397 | "decryption failed (SA=" MAC_FMT | |
398 | ") res=%d\n", MAC_ARG(hdr->addr2), res); | |
399 | if (res == -2) | |
400 | IEEE80211_DEBUG_DROP("Decryption failed ICV " | |
401 | "mismatch (key %d)\n", | |
402 | skb->data[hdrlen + 3] >> 6); | |
403 | ieee->ieee_stats.rx_discards_undecryptable++; | |
404 | return -1; | |
405 | } | |
406 | ||
407 | return res; | |
408 | } | |
409 | ||
410 | ||
411 | /* Called only as a tasklet (software IRQ), by ieee80211_rx */ | |
412 | static inline int | |
413 | ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *skb, | |
414 | int keyidx, struct ieee80211_crypt_data *crypt) | |
415 | { | |
416 | struct ieee80211_hdr *hdr; | |
417 | int res, hdrlen; | |
418 | ||
419 | if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) | |
420 | return 0; | |
421 | ||
422 | hdr = (struct ieee80211_hdr *) skb->data; | |
423 | #ifdef _RTL8187_EXT_PATCH_ | |
424 | if((ieee->iw_mode == ieee->iw_ext_mode) && (ieee->ext_patch_ieee80211_rx_frame_get_hdrlen)) | |
425 | { | |
426 | hdrlen = ieee->ext_patch_ieee80211_rx_frame_get_hdrlen(ieee, skb); | |
427 | } | |
428 | else | |
429 | #endif | |
430 | hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); | |
431 | ||
432 | atomic_inc(&crypt->refcnt); | |
433 | res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); | |
434 | atomic_dec(&crypt->refcnt); | |
435 | if (res < 0) { | |
436 | printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" | |
437 | " (SA=" MAC_FMT " keyidx=%d)\n", | |
438 | ieee->dev->name, MAC_ARG(hdr->addr2), keyidx); | |
439 | return -1; | |
440 | } | |
441 | ||
442 | return 0; | |
443 | } | |
444 | ||
445 | ||
446 | /* this function is stolen from ipw2200 driver*/ | |
447 | #define IEEE_PACKET_RETRY_TIME (5*HZ) | |
448 | static int is_duplicate_packet(struct ieee80211_device *ieee, | |
449 | struct ieee80211_hdr *header) | |
450 | { | |
451 | u16 fc = le16_to_cpu(header->frame_ctl); | |
452 | u16 sc = le16_to_cpu(header->seq_ctl); | |
453 | u16 seq = WLAN_GET_SEQ_SEQ(sc); | |
454 | u16 frag = WLAN_GET_SEQ_FRAG(sc); | |
455 | u16 *last_seq, *last_frag; | |
456 | unsigned long *last_time; | |
457 | struct ieee80211_hdr_3addr_QOS *hdr_3addr_QoS; | |
458 | struct ieee80211_hdr_QOS *hdr_4addr_QoS; | |
459 | u8 tid; | |
460 | ||
461 | #ifdef _RTL8187_EXT_PATCH_ | |
462 | if(ieee->iw_mode == ieee->iw_ext_mode) | |
463 | { | |
464 | tid = (header->addr2[ETH_ALEN-2] ^ header->addr2[ETH_ALEN-1]) & IEEE80211_QOS_TID; | |
465 | } | |
466 | else | |
467 | #endif | |
468 | //TO2DS and QoS | |
469 | if(((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS)&&IEEE80211_QOS_HAS_SEQ(fc)) { | |
470 | hdr_4addr_QoS = (struct ieee80211_hdr_QOS *)header; | |
471 | tid = le16_to_cpu(hdr_4addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
472 | tid = UP2AC(tid); | |
473 | tid ++; | |
474 | } else if(IEEE80211_QOS_HAS_SEQ(fc)) { //QoS | |
475 | hdr_3addr_QoS = (struct ieee80211_hdr_3addr_QOS*)header; | |
476 | tid = le16_to_cpu(hdr_3addr_QoS->QOS_ctl) & IEEE80211_QOS_TID; | |
477 | tid = UP2AC(tid); | |
478 | tid ++; | |
479 | } else { // no QoS | |
480 | tid = 0; | |
481 | } | |
482 | switch (ieee->iw_mode) { | |
483 | case IW_MODE_ADHOC: | |
484 | { | |
485 | struct list_head *p; | |
486 | struct ieee_ibss_seq *entry = NULL; | |
487 | u8 *mac = header->addr2; | |
488 | int index = mac[5] % IEEE_IBSS_MAC_HASH_SIZE; | |
489 | //for (pos = (head)->next; pos != (head); pos = pos->next) | |
490 | __list_for_each(p, &ieee->ibss_mac_hash[index]) { | |
491 | entry = list_entry(p, struct ieee_ibss_seq, list); | |
492 | if (!memcmp(entry->mac, mac, ETH_ALEN)) | |
493 | break; | |
494 | } | |
495 | // if (memcmp(entry->mac, mac, ETH_ALEN)){ | |
496 | if (p == &ieee->ibss_mac_hash[index]) { | |
497 | entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC); | |
498 | if (!entry) { | |
499 | printk(KERN_WARNING "Cannot malloc new mac entry\n"); | |
500 | return 0; | |
501 | } | |
502 | memcpy(entry->mac, mac, ETH_ALEN); | |
503 | entry->seq_num[tid] = seq; | |
504 | entry->frag_num[tid] = frag; | |
505 | entry->packet_time[tid] = jiffies; | |
506 | list_add(&entry->list, &ieee->ibss_mac_hash[index]); | |
507 | return 0; | |
508 | } | |
509 | last_seq = &entry->seq_num[tid]; | |
510 | last_frag = &entry->frag_num[tid]; | |
511 | last_time = &entry->packet_time[tid]; | |
512 | break; | |
513 | } | |
514 | ||
515 | case IW_MODE_INFRA: | |
516 | last_seq = &ieee->last_rxseq_num[tid]; | |
517 | last_frag = &ieee->last_rxfrag_num[tid]; | |
518 | last_time = &ieee->last_packet_time[tid]; | |
519 | ||
520 | break; | |
521 | default: | |
522 | #ifdef _RTL8187_EXT_PATCH_ | |
523 | if(ieee->iw_mode == ieee->iw_ext_mode) | |
524 | { | |
525 | last_seq = &ieee->last_rxseq_num[tid]; | |
526 | last_frag = &ieee->last_rxfrag_num[tid]; | |
527 | last_time = &ieee->last_packet_time[tid]; | |
528 | break; | |
529 | } | |
530 | else | |
531 | #endif | |
532 | return 0; | |
533 | } | |
534 | ||
535 | // if(tid != 0) { | |
536 | // printk(KERN_WARNING ":)))))))))))%x %x %x, fc(%x)\n", tid, *last_seq, seq, header->frame_ctl); | |
537 | // } | |
538 | if ((*last_seq == seq) && | |
539 | time_after(*last_time + IEEE_PACKET_RETRY_TIME, jiffies)) { | |
540 | if (*last_frag == frag){ | |
541 | //printk(KERN_WARNING "[1] go drop!\n"); | |
542 | goto drop; | |
543 | ||
544 | } | |
545 | if (*last_frag + 1 != frag) | |
546 | /* out-of-order fragment */ | |
547 | //printk(KERN_WARNING "[2] go drop!\n"); | |
548 | goto drop; | |
549 | } else | |
550 | *last_seq = seq; | |
551 | ||
552 | *last_frag = frag; | |
553 | *last_time = jiffies; | |
554 | return 0; | |
555 | ||
556 | drop: | |
557 | // BUG_ON(!(fc & IEEE80211_FCTL_RETRY)); | |
558 | // printk("DUP\n"); | |
559 | ||
560 | return 1; | |
561 | } | |
562 | ||
563 | ||
564 | /* All received frames are sent to this function. @skb contains the frame in | |
565 | * IEEE 802.11 format, i.e., in the format it was sent over air. | |
566 | * This function is called only as a tasklet (software IRQ). */ | |
567 | int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, | |
568 | struct ieee80211_rx_stats *rx_stats) | |
569 | { | |
570 | struct net_device *dev = ieee->dev; | |
571 | //struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); | |
572 | struct ieee80211_hdr *hdr; | |
573 | //struct ieee80211_hdr_3addr_QOS *hdr; | |
574 | ||
575 | size_t hdrlen; | |
576 | u16 fc, type, stype, sc; | |
577 | struct net_device_stats *stats; | |
578 | unsigned int frag; | |
579 | u8 *payload; | |
580 | u16 ethertype; | |
581 | #ifdef NOT_YET | |
582 | struct net_device *wds = NULL; | |
583 | struct sk_buff *skb2 = NULL; | |
584 | struct net_device *wds = NULL; | |
585 | int frame_authorized = 0; | |
586 | int from_assoc_ap = 0; | |
587 | void *sta = NULL; | |
588 | #endif | |
589 | // u16 QOS_ctl = 0; | |
590 | u8 dst[ETH_ALEN]; | |
591 | u8 src[ETH_ALEN]; | |
592 | u8 bssid[ETH_ALEN]; | |
593 | struct ieee80211_crypt_data *crypt = NULL; | |
594 | int keyidx = 0; | |
595 | ||
596 | //Added for mesh by Lawrence. | |
597 | #ifdef _RTL8187_EXT_PATCH_ | |
598 | u8 status; | |
599 | u32 flags; | |
600 | #endif | |
601 | // cheat the the hdr type | |
602 | hdr = (struct ieee80211_hdr *)skb->data; | |
603 | stats = &ieee->stats; | |
604 | ||
605 | if (skb->len < 10) { | |
606 | printk(KERN_INFO "%s: SKB length < 10\n", | |
607 | dev->name); | |
608 | goto rx_dropped; | |
609 | } | |
610 | ||
611 | fc = le16_to_cpu(hdr->frame_ctl); | |
612 | type = WLAN_FC_GET_TYPE(fc); | |
613 | stype = WLAN_FC_GET_STYPE(fc); | |
614 | sc = le16_to_cpu(hdr->seq_ctl); | |
615 | ||
616 | frag = WLAN_GET_SEQ_FRAG(sc); | |
617 | ||
618 | //YJ,add,080828,for keep alive | |
619 | if((fc & IEEE80211_FCTL_TODS) != IEEE80211_FCTL_TODS) | |
620 | { | |
621 | if(!memcmp(hdr->addr1,dev->dev_addr, ETH_ALEN)) | |
622 | { | |
623 | ieee->NumRxUnicast++; | |
624 | } | |
625 | } | |
626 | else | |
627 | { | |
628 | if(!memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN)) | |
629 | { | |
630 | ieee->NumRxUnicast++; | |
631 | } | |
632 | } | |
633 | //YJ,add,080828,for keep alive,end | |
634 | ||
635 | #ifdef _RTL8187_EXT_PATCH_ | |
636 | if((ieee->iw_mode == ieee->iw_ext_mode) && (ieee->ext_patch_ieee80211_rx_frame_get_hdrlen)) | |
637 | { | |
638 | hdrlen = ieee->ext_patch_ieee80211_rx_frame_get_hdrlen(ieee, skb); | |
639 | if(skb->len < hdrlen) | |
640 | goto rx_dropped; | |
641 | } | |
642 | else | |
643 | #endif | |
644 | hdrlen = ieee80211_get_hdrlen(fc); | |
645 | ||
646 | #ifdef NOT_YET | |
647 | #if WIRELESS_EXT > 15 | |
648 | /* Put this code here so that we avoid duplicating it in all | |
649 | * Rx paths. - Jean II */ | |
650 | #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ | |
651 | /* If spy monitoring on */ | |
652 | if (iface->spy_data.spy_number > 0) { | |
653 | struct iw_quality wstats; | |
654 | wstats.level = rx_stats->signal; | |
655 | wstats.noise = rx_stats->noise; | |
656 | wstats.updated = 6; /* No qual value */ | |
657 | /* Update spy records */ | |
658 | wireless_spy_update(dev, hdr->addr2, &wstats); | |
659 | } | |
660 | #endif /* IW_WIRELESS_SPY */ | |
661 | #endif /* WIRELESS_EXT > 15 */ | |
662 | hostap_update_rx_stats(local->ap, hdr, rx_stats); | |
663 | #endif | |
664 | ||
665 | #if WIRELESS_EXT > 15 | |
666 | if (ieee->iw_mode == IW_MODE_MONITOR) { | |
667 | ieee80211_monitor_rx(ieee, skb, rx_stats); | |
668 | stats->rx_packets++; | |
669 | stats->rx_bytes += skb->len; | |
670 | return 1; | |
671 | } | |
672 | #endif | |
673 | if (ieee->host_decrypt) { | |
674 | int idx = 0; | |
675 | if (skb->len >= hdrlen + 3) | |
676 | idx = skb->data[hdrlen + 3] >> 6; | |
677 | crypt = ieee->crypt[idx]; | |
678 | #ifdef NOT_YET | |
679 | sta = NULL; | |
680 | ||
681 | /* Use station specific key to override default keys if the | |
682 | * receiver address is a unicast address ("individual RA"). If | |
683 | * bcrx_sta_key parameter is set, station specific key is used | |
684 | * even with broad/multicast targets (this is against IEEE | |
685 | * 802.11, but makes it easier to use different keys with | |
686 | * stations that do not support WEP key mapping). */ | |
687 | ||
688 | if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key) | |
689 | (void) hostap_handle_sta_crypto(local, hdr, &crypt, | |
690 | &sta); | |
691 | #endif | |
692 | ||
693 | /* allow NULL decrypt to indicate an station specific override | |
694 | * for default encryption */ | |
695 | if (crypt && (crypt->ops == NULL || | |
696 | crypt->ops->decrypt_mpdu == NULL)) | |
697 | crypt = NULL; | |
698 | ||
699 | if (!crypt && (fc & IEEE80211_FCTL_WEP)) { | |
700 | /* This seems to be triggered by some (multicast?) | |
701 | * frames from other than current BSS, so just drop the | |
702 | * frames silently instead of filling system log with | |
703 | * these reports. */ | |
704 | IEEE80211_DEBUG_DROP("Decryption failed (not set)" | |
705 | " (SA=" MAC_FMT ")\n", | |
706 | MAC_ARG(hdr->addr2)); | |
707 | ieee->ieee_stats.rx_discards_undecryptable++; | |
708 | goto rx_dropped; | |
709 | } | |
710 | } | |
711 | ||
712 | if (skb->len < IEEE80211_DATA_HDR3_LEN) | |
713 | goto rx_dropped; | |
714 | ||
715 | #ifdef _RTL8187_EXT_PATCH_ | |
716 | if( ieee->iw_mode == ieee->iw_ext_mode && ieee->ext_patch_ieee80211_rx_mgt_update_expire ) | |
717 | ieee->ext_patch_ieee80211_rx_mgt_update_expire( ieee, skb ); | |
718 | #endif | |
719 | ||
720 | // if QoS enabled, should check the sequence for each of the AC | |
721 | if (is_duplicate_packet(ieee, hdr)) | |
722 | goto rx_dropped; | |
723 | ||
724 | ||
725 | if (type == IEEE80211_FTYPE_MGMT) { | |
726 | ||
727 | #if 0 | |
728 | if ( stype == IEEE80211_STYPE_AUTH && | |
729 | fc & IEEE80211_FCTL_WEP && ieee->host_decrypt && | |
730 | (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) | |
731 | { | |
732 | printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " | |
733 | "from " MAC_FMT "\n", dev->name, | |
734 | MAC_ARG(hdr->addr2)); | |
735 | /* TODO: could inform hostapd about this so that it | |
736 | * could send auth failure report */ | |
737 | goto rx_dropped; | |
738 | } | |
739 | #endif | |
740 | ||
741 | ||
742 | if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype)) | |
743 | goto rx_dropped; | |
744 | else | |
745 | goto rx_exit; | |
746 | } | |
747 | #ifdef _RTL8187_EXT_PATCH_ | |
748 | if((ieee->iw_mode == ieee->iw_ext_mode) && ieee->ext_patch_ieee80211_rx_on_rx) | |
749 | { | |
750 | if(ieee->ext_patch_ieee80211_rx_on_rx(ieee, skb, rx_stats, type, stype)==0) | |
751 | { | |
752 | goto rx_exit; | |
753 | } | |
754 | } | |
755 | #endif | |
756 | ||
757 | /* Data frame - extract src/dst addresses */ | |
758 | switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { | |
759 | case IEEE80211_FCTL_FROMDS: | |
760 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
761 | memcpy(src, hdr->addr3, ETH_ALEN); | |
762 | memcpy(bssid,hdr->addr2,ETH_ALEN); | |
763 | break; | |
764 | case IEEE80211_FCTL_TODS: | |
765 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
766 | memcpy(src, hdr->addr2, ETH_ALEN); | |
767 | memcpy(bssid,hdr->addr1,ETH_ALEN); | |
768 | break; | |
769 | case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: | |
770 | if (skb->len < IEEE80211_DATA_HDR4_LEN) | |
771 | goto rx_dropped; | |
772 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
773 | memcpy(src, hdr->addr4, ETH_ALEN); | |
774 | memcpy(bssid, ieee->current_network.bssid, ETH_ALEN); | |
775 | break; | |
776 | case 0: | |
777 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
778 | memcpy(src, hdr->addr2, ETH_ALEN); | |
779 | memcpy(bssid,hdr->addr3,ETH_ALEN); | |
780 | break; | |
781 | } | |
782 | ||
783 | #ifdef NOT_YET | |
784 | if (hostap_rx_frame_wds(ieee, hdr, fc, &wds)) | |
785 | goto rx_dropped; | |
786 | if (wds) { | |
787 | skb->dev = dev = wds; | |
788 | stats = hostap_get_stats(dev); | |
789 | } | |
790 | ||
791 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && | |
792 | (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS && | |
793 | ieee->stadev && | |
794 | memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) { | |
795 | /* Frame from BSSID of the AP for which we are a client */ | |
796 | skb->dev = dev = ieee->stadev; | |
797 | stats = hostap_get_stats(dev); | |
798 | from_assoc_ap = 1; | |
799 | } | |
800 | #endif | |
801 | ||
802 | dev->last_rx = jiffies; | |
803 | ||
804 | #ifdef NOT_YET | |
805 | if ((ieee->iw_mode == IW_MODE_MASTER || | |
806 | ieee->iw_mode == IW_MODE_REPEAT) && | |
807 | !from_assoc_ap) { | |
808 | switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, | |
809 | wds != NULL)) { | |
810 | case AP_RX_CONTINUE_NOT_AUTHORIZED: | |
811 | frame_authorized = 0; | |
812 | break; | |
813 | case AP_RX_CONTINUE: | |
814 | frame_authorized = 1; | |
815 | break; | |
816 | case AP_RX_DROP: | |
817 | goto rx_dropped; | |
818 | case AP_RX_EXIT: | |
819 | goto rx_exit; | |
820 | } | |
821 | } | |
822 | #endif | |
823 | ||
824 | #ifdef _RTL8187_EXT_PATCH_ | |
825 | if((ieee->iw_mode == ieee->iw_ext_mode) && ieee->ext_patch_ieee80211_rx_is_valid_framectl) | |
826 | { | |
827 | if(ieee->ext_patch_ieee80211_rx_is_valid_framectl(ieee, fc, type, stype)==0) | |
828 | goto rx_dropped; | |
829 | } | |
830 | else | |
831 | #endif | |
832 | /* Nullfunc frames may have PS-bit set, so they must be passed to | |
833 | * hostap_handle_sta_rx() before being dropped here. */ | |
834 | if (stype != IEEE80211_STYPE_DATA && | |
835 | stype != IEEE80211_STYPE_DATA_CFACK && | |
836 | stype != IEEE80211_STYPE_DATA_CFPOLL && | |
837 | stype != IEEE80211_STYPE_DATA_CFACKPOLL&& | |
838 | stype != IEEE80211_STYPE_QOS_DATA//add by David,2006.8.4 | |
839 | ) { | |
840 | if (stype != IEEE80211_STYPE_NULLFUNC) | |
841 | IEEE80211_DEBUG_DROP( | |
842 | "RX: dropped data frame " | |
843 | "with no data (type=0x%02x, " | |
844 | "subtype=0x%02x, len=%d)\n", | |
845 | type, stype, skb->len); | |
846 | goto rx_dropped; | |
847 | } | |
848 | if(memcmp(bssid,ieee->current_network.bssid,ETH_ALEN)) { | |
849 | goto rx_dropped; | |
850 | } | |
851 | ||
852 | ieee->NumRxDataInPeriod++; | |
853 | ieee->NumRxOkTotal++; | |
854 | /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ | |
855 | ||
856 | if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && | |
857 | (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) | |
858 | goto rx_dropped; | |
859 | ||
860 | hdr = (struct ieee80211_hdr *) skb->data; | |
861 | ||
862 | /* skb: hdr + (possibly fragmented) plaintext payload */ | |
863 | // PR: FIXME: hostap has additional conditions in the "if" below: | |
864 | // ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && | |
865 | if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) { | |
866 | int flen; | |
867 | struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr); | |
868 | IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag); | |
869 | ||
870 | if (!frag_skb) { | |
871 | IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG, | |
872 | "Rx cannot get skb from fragment " | |
873 | "cache (morefrag=%d seq=%u frag=%u)\n", | |
874 | (fc & IEEE80211_FCTL_MOREFRAGS) != 0, | |
875 | WLAN_GET_SEQ_SEQ(sc), frag); | |
876 | goto rx_dropped; | |
877 | } | |
878 | flen = skb->len; | |
879 | if (frag != 0) | |
880 | flen -= hdrlen; | |
881 | ||
882 | if (frag_skb->tail + flen > frag_skb->end) { | |
883 | printk(KERN_WARNING "%s: host decrypted and " | |
884 | "reassembled frame did not fit skb\n", | |
885 | dev->name); | |
886 | ieee80211_frag_cache_invalidate(ieee, hdr); | |
887 | goto rx_dropped; | |
888 | } | |
889 | ||
890 | if (frag == 0) { | |
891 | /* copy first fragment (including full headers) into | |
892 | * beginning of the fragment cache skb */ | |
893 | memcpy(skb_put(frag_skb, flen), skb->data, flen); | |
894 | } else { | |
895 | /* append frame payload to the end of the fragment | |
896 | * cache skb */ | |
897 | memcpy(skb_put(frag_skb, flen), skb->data + hdrlen, | |
898 | flen); | |
899 | } | |
900 | dev_kfree_skb_any(skb); | |
901 | skb = NULL; | |
902 | ||
903 | if (fc & IEEE80211_FCTL_MOREFRAGS) { | |
904 | /* more fragments expected - leave the skb in fragment | |
905 | * cache for now; it will be delivered to upper layers | |
906 | * after all fragments have been received */ | |
907 | goto rx_exit; | |
908 | } | |
909 | ||
910 | /* this was the last fragment and the frame will be | |
911 | * delivered, so remove skb from fragment cache */ | |
912 | skb = frag_skb; | |
913 | hdr = (struct ieee80211_hdr *) skb->data; | |
914 | ieee80211_frag_cache_invalidate(ieee, hdr); | |
915 | } | |
916 | ||
917 | /* skb: hdr + (possible reassembled) full MSDU payload; possibly still | |
918 | * encrypted/authenticated */ | |
919 | if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && | |
920 | ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) | |
921 | goto rx_dropped; | |
922 | ||
923 | hdr = (struct ieee80211_hdr *) skb->data; | |
924 | if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) { | |
925 | if (/*ieee->ieee802_1x &&*/ | |
926 | ieee80211_is_eapol_frame(ieee, skb, hdrlen)) { | |
927 | ||
928 | #ifdef CONFIG_IEEE80211_DEBUG | |
929 | /* pass unencrypted EAPOL frames even if encryption is | |
930 | * configured */ | |
931 | struct eapol *eap = (struct eapol *)(skb->data + | |
932 | 24); | |
933 | IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", | |
934 | eap_get_type(eap->type)); | |
935 | #endif | |
936 | } else { | |
937 | IEEE80211_DEBUG_DROP( | |
938 | "encryption configured, but RX " | |
939 | "frame not encrypted (SA=" MAC_FMT ")\n", | |
940 | MAC_ARG(hdr->addr2)); | |
941 | goto rx_dropped; | |
942 | } | |
943 | } | |
944 | ||
945 | #ifdef CONFIG_IEEE80211_DEBUG | |
946 | if (crypt && !(fc & IEEE80211_FCTL_WEP) && | |
947 | ieee80211_is_eapol_frame(ieee, skb, hdrlen)) { | |
948 | struct eapol *eap = (struct eapol *)(skb->data + | |
949 | 24); | |
950 | IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", | |
951 | eap_get_type(eap->type)); | |
952 | } | |
953 | #endif | |
954 | ||
955 | if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep && | |
956 | !ieee80211_is_eapol_frame(ieee, skb, hdrlen)) { | |
957 | IEEE80211_DEBUG_DROP( | |
958 | "dropped unencrypted RX data " | |
959 | "frame from " MAC_FMT | |
960 | " (drop_unencrypted=1)\n", | |
961 | MAC_ARG(hdr->addr2)); | |
962 | goto rx_dropped; | |
963 | } | |
964 | /* | |
965 | if(ieee80211_is_eapol_frame(ieee, skb, hdrlen)) { | |
966 | printk(KERN_WARNING "RX: IEEE802.1X EPAOL frame!\n"); | |
967 | } | |
968 | */ | |
969 | /* skb: hdr + (possible reassembled) full plaintext payload */ | |
970 | payload = skb->data + hdrlen; | |
971 | ethertype = (payload[6] << 8) | payload[7]; | |
972 | ||
973 | #ifdef NOT_YET | |
974 | /* If IEEE 802.1X is used, check whether the port is authorized to send | |
975 | * the received frame. */ | |
976 | if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) { | |
977 | if (ethertype == ETH_P_PAE) { | |
978 | printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n", | |
979 | dev->name); | |
980 | if (ieee->hostapd && ieee->apdev) { | |
981 | /* Send IEEE 802.1X frames to the user | |
982 | * space daemon for processing */ | |
983 | prism2_rx_80211(ieee->apdev, skb, rx_stats, | |
984 | PRISM2_RX_MGMT); | |
985 | ieee->apdevstats.rx_packets++; | |
986 | ieee->apdevstats.rx_bytes += skb->len; | |
987 | goto rx_exit; | |
988 | } | |
989 | } else if (!frame_authorized) { | |
990 | printk(KERN_DEBUG "%s: dropped frame from " | |
991 | "unauthorized port (IEEE 802.1X): " | |
992 | "ethertype=0x%04x\n", | |
993 | dev->name, ethertype); | |
994 | goto rx_dropped; | |
995 | } | |
996 | } | |
997 | #endif | |
998 | ||
999 | #ifdef _RTL8187_EXT_PATCH_ | |
1000 | if((ieee->iw_mode == ieee->iw_ext_mode) && ieee->ext_patch_ieee80211_rx_process_dataframe) | |
1001 | { | |
1002 | //Added for mesh rx interrupt. | |
1003 | //spin_lock_irqsave(&ieee->lock,flags); | |
1004 | status = ieee->ext_patch_ieee80211_rx_process_dataframe(ieee, skb, rx_stats); | |
1005 | //spin_unlock_irqrestore(&ieee->lock,flags); | |
1006 | ||
1007 | if(status) | |
1008 | // if(ieee->ext_patch_ieee80211_rx_process_dataframe(ieee, skb, rx_stats)) | |
1009 | goto rx_exit; | |
1010 | else | |
1011 | goto rx_dropped; | |
1012 | } | |
1013 | #endif | |
1014 | ||
1015 | /* convert hdr + possible LLC headers into Ethernet header */ | |
1016 | if (skb->len - hdrlen >= 8 && | |
1017 | ((memcmp(payload, rfc1042_header, SNAP_SIZE) == 0 && | |
1018 | ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || | |
1019 | memcmp(payload, bridge_tunnel_header, SNAP_SIZE) == 0)) { | |
1020 | /* remove RFC1042 or Bridge-Tunnel encapsulation and | |
1021 | * replace EtherType */ | |
1022 | skb_pull(skb, hdrlen + SNAP_SIZE); | |
1023 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
1024 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
1025 | } else { | |
1026 | u16 len; | |
1027 | /* Leave Ethernet header part of hdr and full payload */ | |
1028 | skb_pull(skb, hdrlen); | |
1029 | len = htons(skb->len); | |
1030 | memcpy(skb_push(skb, 2), &len, 2); | |
1031 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
1032 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
1033 | } | |
1034 | ||
1035 | #ifdef NOT_YET | |
1036 | if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
1037 | IEEE80211_FCTL_TODS) && | |
1038 | skb->len >= ETH_HLEN + ETH_ALEN) { | |
1039 | /* Non-standard frame: get addr4 from its bogus location after | |
1040 | * the payload */ | |
1041 | memcpy(skb->data + ETH_ALEN, | |
1042 | skb->data + skb->len - ETH_ALEN, ETH_ALEN); | |
1043 | skb_trim(skb, skb->len - ETH_ALEN); | |
1044 | } | |
1045 | #endif | |
1046 | ||
1047 | stats->rx_packets++; | |
1048 | stats->rx_bytes += skb->len; | |
1049 | ||
1050 | #ifdef NOT_YET | |
1051 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && | |
1052 | ieee->ap->bridge_packets) { | |
1053 | if (dst[0] & 0x01) { | |
1054 | /* copy multicast frame both to the higher layers and | |
1055 | * to the wireless media */ | |
1056 | ieee->ap->bridged_multicast++; | |
1057 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
1058 | if (skb2 == NULL) | |
1059 | printk(KERN_DEBUG "%s: skb_clone failed for " | |
1060 | "multicast frame\n", dev->name); | |
1061 | } else if (hostap_is_sta_assoc(ieee->ap, dst)) { | |
1062 | /* send frame directly to the associated STA using | |
1063 | * wireless media and not passing to higher layers */ | |
1064 | ieee->ap->bridged_unicast++; | |
1065 | skb2 = skb; | |
1066 | skb = NULL; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if (skb2 != NULL) { | |
1071 | /* send to wireless media */ | |
1072 | skb2->protocol = __constant_htons(ETH_P_802_3); | |
1073 | skb2->mac.raw = skb2->nh.raw = skb2->data; | |
1074 | /* skb2->nh.raw = skb2->data + ETH_HLEN; */ | |
1075 | skb2->dev = dev; | |
1076 | dev_queue_xmit(skb2); | |
1077 | } | |
1078 | ||
1079 | #endif | |
1080 | if (skb) { | |
1081 | skb->protocol = eth_type_trans(skb, dev); | |
1082 | memset(skb->cb, 0, sizeof(skb->cb)); | |
1083 | skb->dev = dev; | |
1084 | skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ | |
1085 | ieee->last_rx_ps_time = jiffies; | |
1086 | netif_rx(skb); | |
1087 | } | |
1088 | ||
1089 | rx_exit: | |
1090 | #ifdef NOT_YET | |
1091 | if (sta) | |
1092 | hostap_handle_sta_release(sta); | |
1093 | #endif | |
1094 | return 1; | |
1095 | ||
1096 | rx_dropped: | |
1097 | stats->rx_dropped++; | |
1098 | ||
1099 | /* Returning 0 indicates to caller that we have not handled the SKB-- | |
1100 | * so it is still allocated and can be used again by underlying | |
1101 | * hardware as a DMA target */ | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | #ifdef _RTL8187_EXT_PATCH_ | |
1106 | int ieee_ext_skb_p80211_to_ether(struct sk_buff *skb, int hdrlen, u8 *dst, u8 *src) | |
1107 | { | |
1108 | u8 *payload; | |
1109 | u16 ethertype; | |
1110 | ||
1111 | /* skb: hdr + (possible reassembled) full plaintext payload */ | |
1112 | payload = skb->data + hdrlen; | |
1113 | ethertype = (payload[6] << 8) | payload[7]; | |
1114 | ||
1115 | /* convert hdr + possible LLC headers into Ethernet header */ | |
1116 | if (skb->len - hdrlen >= 8 && | |
1117 | ((memcmp(payload, rfc1042_header, SNAP_SIZE) == 0 && | |
1118 | ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || | |
1119 | memcmp(payload, bridge_tunnel_header, SNAP_SIZE) == 0)) { | |
1120 | /* remove RFC1042 or Bridge-Tunnel encapsulation and | |
1121 | * replace EtherType */ | |
1122 | skb_pull(skb, hdrlen + SNAP_SIZE); | |
1123 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
1124 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
1125 | } else { | |
1126 | u16 len; | |
1127 | /* Leave Ethernet header part of hdr and full payload */ | |
1128 | skb_pull(skb, hdrlen); | |
1129 | len = htons(skb->len); | |
1130 | memcpy(skb_push(skb, 2), &len, 2); | |
1131 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
1132 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
1133 | } | |
1134 | ||
1135 | return 1; | |
1136 | } | |
1137 | #endif // _RTL8187_EXT_PATCH_ | |
1138 | ||
1139 | ||
1140 | #define MGMT_FRAME_FIXED_PART_LENGTH 0x24 | |
1141 | ||
1142 | static inline int ieee80211_is_ofdm_rate(u8 rate) | |
1143 | { | |
1144 | switch (rate & ~IEEE80211_BASIC_RATE_MASK) { | |
1145 | case IEEE80211_OFDM_RATE_6MB: | |
1146 | case IEEE80211_OFDM_RATE_9MB: | |
1147 | case IEEE80211_OFDM_RATE_12MB: | |
1148 | case IEEE80211_OFDM_RATE_18MB: | |
1149 | case IEEE80211_OFDM_RATE_24MB: | |
1150 | case IEEE80211_OFDM_RATE_36MB: | |
1151 | case IEEE80211_OFDM_RATE_48MB: | |
1152 | case IEEE80211_OFDM_RATE_54MB: | |
1153 | return 1; | |
1154 | } | |
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | static inline int ieee80211_SignalStrengthTranslate( | |
1159 | int CurrSS | |
1160 | ) | |
1161 | { | |
1162 | int RetSS; | |
1163 | ||
1164 | // Step 1. Scale mapping. | |
1165 | if(CurrSS >= 71 && CurrSS <= 100) | |
1166 | { | |
1167 | RetSS = 90 + ((CurrSS - 70) / 3); | |
1168 | } | |
1169 | else if(CurrSS >= 41 && CurrSS <= 70) | |
1170 | { | |
1171 | RetSS = 78 + ((CurrSS - 40) / 3); | |
1172 | } | |
1173 | else if(CurrSS >= 31 && CurrSS <= 40) | |
1174 | { | |
1175 | RetSS = 66 + (CurrSS - 30); | |
1176 | } | |
1177 | else if(CurrSS >= 21 && CurrSS <= 30) | |
1178 | { | |
1179 | RetSS = 54 + (CurrSS - 20); | |
1180 | } | |
1181 | else if(CurrSS >= 5 && CurrSS <= 20) | |
1182 | { | |
1183 | RetSS = 42 + (((CurrSS - 5) * 2) / 3); | |
1184 | } | |
1185 | else if(CurrSS == 4) | |
1186 | { | |
1187 | RetSS = 36; | |
1188 | } | |
1189 | else if(CurrSS == 3) | |
1190 | { | |
1191 | RetSS = 27; | |
1192 | } | |
1193 | else if(CurrSS == 2) | |
1194 | { | |
1195 | RetSS = 18; | |
1196 | } | |
1197 | else if(CurrSS == 1) | |
1198 | { | |
1199 | RetSS = 9; | |
1200 | } | |
1201 | else | |
1202 | { | |
1203 | RetSS = CurrSS; | |
1204 | } | |
1205 | //RT_TRACE(COMP_DBG, DBG_LOUD, ("##### After Mapping: LastSS: %d, CurrSS: %d, RetSS: %d\n", LastSS, CurrSS, RetSS)); | |
1206 | ||
1207 | // Step 2. Smoothing. | |
1208 | ||
1209 | //RT_TRACE(COMP_DBG, DBG_LOUD, ("$$$$$ After Smoothing: LastSS: %d, CurrSS: %d, RetSS: %d\n", LastSS, CurrSS, RetSS)); | |
1210 | ||
1211 | return RetSS; | |
1212 | } | |
1213 | ||
1214 | #ifdef ENABLE_DOT11D | |
1215 | static inline void ieee80211_extract_country_ie( | |
1216 | struct ieee80211_device *ieee, | |
1217 | struct ieee80211_info_element *info_element, | |
1218 | struct ieee80211_network *network, | |
1219 | u8 * addr2 | |
1220 | ) | |
1221 | { | |
1222 | #if 0 | |
1223 | u32 i = 0; | |
1224 | u8 * p = (u8*)info_element->data; | |
1225 | printk("-----------------------\n"); | |
1226 | printk("%s Country IE:", network->ssid); | |
1227 | for(i=0; i<info_element->len; i++) | |
1228 | printk("\t%2.2x", *(p+i)); | |
1229 | printk("\n-----------------------\n"); | |
1230 | #endif | |
1231 | if(IS_DOT11D_ENABLE(ieee)) | |
1232 | { | |
1233 | if(info_element->len!= 0) | |
1234 | { | |
1235 | memcpy(network->CountryIeBuf, info_element->data, info_element->len); | |
1236 | network->CountryIeLen = info_element->len; | |
1237 | ||
1238 | if(!IS_COUNTRY_IE_VALID(ieee)) | |
1239 | { | |
1240 | Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data); | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | // | |
1245 | // 070305, rcnjko: I update country IE watch dog here because | |
1246 | // some AP (e.g. Cisco 1242) don't include country IE in their | |
1247 | // probe response frame. | |
1248 | // | |
1249 | if(IS_EQUAL_CIE_SRC(ieee, addr2) ) | |
1250 | { | |
1251 | UPDATE_CIE_WATCHDOG(ieee); | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | } | |
1256 | #endif | |
1257 | ||
1258 | int | |
1259 | ieee80211_TranslateToDbm( | |
1260 | unsigned char SignalStrengthIndex // 0-100 index. | |
1261 | ) | |
1262 | { | |
1263 | unsigned char SignalPower; // in dBm. | |
1264 | ||
1265 | // Translate to dBm (x=0.5y-95). | |
1266 | SignalPower = (int)SignalStrengthIndex * 7 / 10; | |
1267 | SignalPower -= 95; | |
1268 | ||
1269 | return SignalPower; | |
1270 | } | |
1271 | inline int ieee80211_network_init( | |
1272 | struct ieee80211_device *ieee, | |
1273 | struct ieee80211_probe_response *beacon, | |
1274 | struct ieee80211_network *network, | |
1275 | struct ieee80211_rx_stats *stats) | |
1276 | { | |
1277 | #ifdef CONFIG_IEEE80211_DEBUG | |
1278 | char rates_str[64]; | |
1279 | char *p; | |
1280 | #endif | |
1281 | struct ieee80211_info_element *info_element; | |
1282 | u16 left; | |
1283 | u8 i; | |
1284 | short offset; | |
1285 | u8 curRate = 0,hOpRate = 0,curRate_ex = 0; | |
1286 | ||
1287 | /* Pull out fixed field data */ | |
1288 | memcpy(network->bssid, beacon->header.addr3, ETH_ALEN); | |
1289 | network->capability = beacon->capability; | |
1290 | network->last_scanned = jiffies; | |
1291 | network->time_stamp[0] = beacon->time_stamp[0]; | |
1292 | network->time_stamp[1] = beacon->time_stamp[1]; | |
1293 | network->beacon_interval = beacon->beacon_interval; | |
1294 | /* Where to pull this? beacon->listen_interval;*/ | |
1295 | network->listen_interval = 0x0A; | |
1296 | network->rates_len = network->rates_ex_len = 0; | |
1297 | network->last_associate = 0; | |
1298 | network->ssid_len = 0; | |
1299 | network->flags = 0; | |
1300 | network->atim_window = 0; | |
1301 | network->QoS_Enable = 0; | |
1302 | //by amy 080312 | |
1303 | network->HighestOperaRate = 0; | |
1304 | //by amy 080312 | |
1305 | #ifdef THOMAS_TURBO | |
1306 | network->Turbo_Enable = 0; | |
1307 | #endif | |
1308 | #ifdef ENABLE_DOT11D | |
1309 | network->CountryIeLen = 0; | |
1310 | memset(network->CountryIeBuf, 0, MAX_IE_LEN); | |
1311 | #endif | |
1312 | ||
1313 | if (stats->freq == IEEE80211_52GHZ_BAND) { | |
1314 | /* for A band (No DS info) */ | |
1315 | network->channel = stats->received_channel; | |
1316 | } else | |
1317 | network->flags |= NETWORK_HAS_CCK; | |
1318 | ||
1319 | network->wpa_ie_len = 0; | |
1320 | network->rsn_ie_len = 0; | |
1321 | ||
1322 | info_element = &beacon->info_element; | |
1323 | left = stats->len - ((void *)info_element - (void *)beacon); | |
1324 | while (left >= sizeof(struct ieee80211_info_element_hdr)) { | |
1325 | if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) { | |
1326 | IEEE80211_DEBUG_SCAN("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%d left=%d.\n", | |
1327 | info_element->len + sizeof(struct ieee80211_info_element), | |
1328 | left); | |
1329 | return 1; | |
1330 | } | |
1331 | ||
1332 | switch (info_element->id) { | |
1333 | case MFIE_TYPE_SSID: | |
1334 | if (ieee80211_is_empty_essid(info_element->data, | |
1335 | info_element->len)) { | |
1336 | network->flags |= NETWORK_EMPTY_ESSID; | |
1337 | break; | |
1338 | } | |
1339 | ||
1340 | network->ssid_len = min(info_element->len, | |
1341 | (u8)IW_ESSID_MAX_SIZE); | |
1342 | memcpy(network->ssid, info_element->data, network->ssid_len); | |
1343 | if (network->ssid_len < IW_ESSID_MAX_SIZE) | |
1344 | memset(network->ssid + network->ssid_len, 0, | |
1345 | IW_ESSID_MAX_SIZE - network->ssid_len); | |
1346 | ||
1347 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_SSID: '%s' len=%d.\n", | |
1348 | network->ssid, network->ssid_len); | |
1349 | break; | |
1350 | ||
1351 | case MFIE_TYPE_RATES: | |
1352 | #ifdef CONFIG_IEEE80211_DEBUG | |
1353 | p = rates_str; | |
1354 | #endif | |
1355 | network->rates_len = min(info_element->len, MAX_RATES_LENGTH); | |
1356 | for (i = 0; i < network->rates_len; i++) { | |
1357 | network->rates[i] = info_element->data[i]; | |
1358 | curRate = network->rates[i] & 0x7f; | |
1359 | if( hOpRate < curRate ) | |
1360 | hOpRate = curRate; | |
1361 | #ifdef CONFIG_IEEE80211_DEBUG | |
1362 | p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); | |
1363 | #endif | |
1364 | if (ieee80211_is_ofdm_rate(info_element->data[i])) { | |
1365 | network->flags |= NETWORK_HAS_OFDM; | |
1366 | if (info_element->data[i] & | |
1367 | IEEE80211_BASIC_RATE_MASK) | |
1368 | network->flags &= | |
1369 | ~NETWORK_HAS_CCK; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES: '%s' (%d)\n", | |
1374 | rates_str, network->rates_len); | |
1375 | break; | |
1376 | ||
1377 | case MFIE_TYPE_RATES_EX: | |
1378 | #ifdef CONFIG_IEEE80211_DEBUG | |
1379 | p = rates_str; | |
1380 | #endif | |
1381 | network->rates_ex_len = min(info_element->len, MAX_RATES_EX_LENGTH); | |
1382 | for (i = 0; i < network->rates_ex_len; i++) { | |
1383 | network->rates_ex[i] = info_element->data[i]; | |
1384 | curRate_ex = network->rates_ex[i] & 0x7f; | |
1385 | if( hOpRate < curRate_ex ) | |
1386 | hOpRate = curRate_ex; | |
1387 | #ifdef CONFIG_IEEE80211_DEBUG | |
1388 | p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); | |
1389 | #endif | |
1390 | if (ieee80211_is_ofdm_rate(info_element->data[i])) { | |
1391 | network->flags |= NETWORK_HAS_OFDM; | |
1392 | if (info_element->data[i] & | |
1393 | IEEE80211_BASIC_RATE_MASK) | |
1394 | network->flags &= | |
1395 | ~NETWORK_HAS_CCK; | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES_EX: '%s' (%d)\n", | |
1400 | rates_str, network->rates_ex_len); | |
1401 | break; | |
1402 | ||
1403 | case MFIE_TYPE_DS_SET: | |
1404 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n", | |
1405 | info_element->data[0]); | |
1406 | if (stats->freq == IEEE80211_24GHZ_BAND) | |
1407 | network->channel = info_element->data[0]; | |
1408 | break; | |
1409 | ||
1410 | case MFIE_TYPE_FH_SET: | |
1411 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n"); | |
1412 | break; | |
1413 | ||
1414 | case MFIE_TYPE_CF_SET: | |
1415 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_CF_SET: ignored\n"); | |
1416 | break; | |
1417 | ||
1418 | case MFIE_TYPE_TIM: | |
1419 | ||
1420 | if(info_element->len < 4) | |
1421 | break; | |
1422 | ||
1423 | network->dtim_period = info_element->data[1]; | |
1424 | ||
1425 | if(ieee->state != IEEE80211_LINKED) | |
1426 | break; | |
1427 | #if 0 | |
1428 | network->last_dtim_sta_time[0] = stats->mac_time[0]; | |
1429 | #else | |
1430 | network->last_dtim_sta_time[0] = jiffies; | |
1431 | #endif | |
1432 | network->last_dtim_sta_time[1] = stats->mac_time[1]; | |
1433 | ||
1434 | network->dtim_data = IEEE80211_DTIM_VALID; | |
1435 | ||
1436 | if(info_element->data[0] != 0) | |
1437 | break; | |
1438 | ||
1439 | if(info_element->data[2] & 1) | |
1440 | network->dtim_data |= IEEE80211_DTIM_MBCAST; | |
1441 | ||
1442 | offset = (info_element->data[2] >> 1)*2; | |
1443 | ||
1444 | //printk("offset1:%x aid:%x\n",offset, ieee->assoc_id); | |
1445 | ||
1446 | /* add and modified for ps 2008.1.22 */ | |
1447 | if(ieee->assoc_id < 8*offset || | |
1448 | ieee->assoc_id > 8*(offset + info_element->len -3)) { | |
1449 | break; | |
1450 | } | |
1451 | ||
1452 | offset = (ieee->assoc_id/8) - offset;// + ((aid % 8)? 0 : 1) ; | |
1453 | ||
1454 | // printk("offset:%x data:%x, ucast:%d\n", offset, | |
1455 | // info_element->data[3+offset] , | |
1456 | // info_element->data[3+offset] & (1<<(ieee->assoc_id%8))); | |
1457 | ||
1458 | if(info_element->data[3+offset] & (1<<(ieee->assoc_id%8))) { | |
1459 | network->dtim_data |= IEEE80211_DTIM_UCAST; | |
1460 | } | |
1461 | break; | |
1462 | ||
1463 | case MFIE_TYPE_IBSS_SET: | |
1464 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_IBSS_SET: ignored\n"); | |
1465 | break; | |
1466 | ||
1467 | case MFIE_TYPE_CHALLENGE: | |
1468 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_CHALLENGE: ignored\n"); | |
1469 | break; | |
1470 | ||
1471 | case MFIE_TYPE_GENERIC: | |
1472 | //nic is 87B | |
1473 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", | |
1474 | info_element->len); | |
1475 | if (info_element->len >= 4 && | |
1476 | info_element->data[0] == 0x00 && | |
1477 | info_element->data[1] == 0x50 && | |
1478 | info_element->data[2] == 0xf2 && | |
1479 | info_element->data[3] == 0x01) { | |
1480 | network->wpa_ie_len = min(info_element->len + 2, | |
1481 | MAX_WPA_IE_LEN); | |
1482 | memcpy(network->wpa_ie, info_element, | |
1483 | network->wpa_ie_len); | |
1484 | } | |
1485 | ||
1486 | #ifdef THOMAS_TURBO | |
1487 | if (info_element->len == 7 && | |
1488 | info_element->data[0] == 0x00 && | |
1489 | info_element->data[1] == 0xe0 && | |
1490 | info_element->data[2] == 0x4c && | |
1491 | info_element->data[3] == 0x01 && | |
1492 | info_element->data[4] == 0x02) { | |
1493 | network->Turbo_Enable = 1; | |
1494 | } | |
1495 | #endif | |
1496 | if (1 == stats->nic_type) {//nic 87 | |
1497 | break; | |
1498 | } | |
1499 | ||
1500 | if (info_element->len >= 5 && | |
1501 | info_element->data[0] == 0x00 && | |
1502 | info_element->data[1] == 0x50 && | |
1503 | info_element->data[2] == 0xf2 && | |
1504 | info_element->data[3] == 0x02 && | |
1505 | info_element->data[4] == 0x00) { | |
1506 | //printk(KERN_WARNING "wmm info updated: %x\n", info_element->data[6]); | |
1507 | //WMM Information Element | |
1508 | network->wmm_info = info_element->data[6]; | |
1509 | network->QoS_Enable = 1; | |
1510 | } | |
1511 | ||
1512 | if (info_element->len >= 8 && | |
1513 | info_element->data[0] == 0x00 && | |
1514 | info_element->data[1] == 0x50 && | |
1515 | info_element->data[2] == 0xf2 && | |
1516 | info_element->data[3] == 0x02 && | |
1517 | info_element->data[4] == 0x01) { | |
1518 | // Not care about version at present. | |
1519 | //WMM Information Element | |
1520 | //printk(KERN_WARNING "wmm info¶m updated: %x\n", info_element->data[6]); | |
1521 | network->wmm_info = info_element->data[6]; | |
1522 | //WMM Parameter Element | |
1523 | memcpy(network->wmm_param, (u8 *)(info_element->data + 8),(info_element->len - 8)); | |
1524 | network->QoS_Enable = 1; | |
1525 | } | |
1526 | break; | |
1527 | ||
1528 | case MFIE_TYPE_RSN: | |
1529 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_RSN: %d bytes\n", | |
1530 | info_element->len); | |
1531 | network->rsn_ie_len = min(info_element->len + 2, | |
1532 | MAX_WPA_IE_LEN); | |
1533 | memcpy(network->rsn_ie, info_element, | |
1534 | network->rsn_ie_len); | |
1535 | break; | |
1536 | #ifdef ENABLE_DOT11D | |
1537 | case MFIE_TYPE_COUNTRY: | |
1538 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_COUNTRY: %d bytes\n", | |
1539 | info_element->len); | |
1540 | // printk("=====>Receive <%s> Country IE\n",network->ssid); | |
1541 | ieee80211_extract_country_ie(ieee, info_element, network, beacon->header.addr2); | |
1542 | break; | |
1543 | #endif | |
1544 | default: | |
1545 | IEEE80211_DEBUG_SCAN("unsupported IE %d\n", | |
1546 | info_element->id); | |
1547 | break; | |
1548 | } | |
1549 | ||
1550 | left -= sizeof(struct ieee80211_info_element_hdr) + | |
1551 | info_element->len; | |
1552 | info_element = (struct ieee80211_info_element *) | |
1553 | &info_element->data[info_element->len]; | |
1554 | } | |
1555 | //by amy 080312 | |
1556 | network->HighestOperaRate = hOpRate; | |
1557 | //by amy 080312 | |
1558 | network->mode = 0; | |
1559 | if (stats->freq == IEEE80211_52GHZ_BAND) | |
1560 | network->mode = IEEE_A; | |
1561 | else { | |
1562 | if (network->flags & NETWORK_HAS_OFDM) | |
1563 | network->mode |= IEEE_G; | |
1564 | if (network->flags & NETWORK_HAS_CCK) | |
1565 | network->mode |= IEEE_B; | |
1566 | } | |
1567 | ||
1568 | if (network->mode == 0) { | |
1569 | IEEE80211_DEBUG_SCAN("Filtered out '%s (" MAC_FMT ")' " | |
1570 | "network.\n", | |
1571 | escape_essid(network->ssid, | |
1572 | network->ssid_len), | |
1573 | MAC_ARG(network->bssid)); | |
1574 | return 1; | |
1575 | } | |
1576 | ||
1577 | if (ieee80211_is_empty_essid(network->ssid, network->ssid_len)) | |
1578 | network->flags |= NETWORK_EMPTY_ESSID; | |
1579 | #if 0 | |
1580 | stats->signal = ieee80211_SignalStrengthTranslate(stats->signal); | |
1581 | #endif | |
1582 | stats->signal = ieee80211_TranslateToDbm(stats->signalstrength); | |
1583 | //stats->noise = stats->signal - stats->noise; | |
1584 | stats->noise = ieee80211_TranslateToDbm(100 - stats->signalstrength) - 25; | |
1585 | memcpy(&network->stats, stats, sizeof(network->stats)); | |
1586 | ||
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | static inline int is_same_network(struct ieee80211_network *src, | |
1591 | struct ieee80211_network *dst, | |
1592 | struct ieee80211_device * ieee) | |
1593 | { | |
1594 | /* A network is only a duplicate if the channel, BSSID, ESSID | |
1595 | * and the capability field (in particular IBSS and BSS) all match. | |
1596 | * We treat all <hidden> with the same BSSID and channel | |
1597 | * as one network */ | |
1598 | return (((src->ssid_len == dst->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) && //YJ,mod,080819,for hidden ap | |
1599 | //((src->ssid_len == dst->ssid_len) && | |
1600 | (src->channel == dst->channel) && | |
1601 | !memcmp(src->bssid, dst->bssid, ETH_ALEN) && | |
1602 | (!memcmp(src->ssid, dst->ssid, src->ssid_len) || (ieee->iw_mode == IW_MODE_INFRA)) && //YJ,mod,080819,for hidden ap | |
1603 | //!memcmp(src->ssid, dst->ssid, src->ssid_len) && | |
1604 | ((src->capability & WLAN_CAPABILITY_IBSS) == | |
1605 | (dst->capability & WLAN_CAPABILITY_IBSS)) && | |
1606 | ((src->capability & WLAN_CAPABILITY_BSS) == | |
1607 | (dst->capability & WLAN_CAPABILITY_BSS))); | |
1608 | } | |
1609 | ||
1610 | inline void update_network(struct ieee80211_network *dst, | |
1611 | struct ieee80211_network *src) | |
1612 | { | |
1613 | unsigned char quality = src->stats.signalstrength; | |
1614 | unsigned char signal = 0; | |
1615 | unsigned char noise = 0; | |
1616 | if(dst->stats.signalstrength > 0) { | |
1617 | quality = (dst->stats.signalstrength * 5 + src->stats.signalstrength + 5)/6; | |
1618 | } | |
1619 | signal = ieee80211_TranslateToDbm(quality); | |
1620 | //noise = signal - src->stats.noise; | |
1621 | if(dst->stats.noise > 0) | |
1622 | noise = (dst->stats.noise * 5 + src->stats.noise)/6; | |
1623 | //if(strcmp(dst->ssid, "linksys_lzm000") == 0) | |
1624 | // printk("ssid:%s, quality:%d, signal:%d\n", dst->ssid, quality, signal); | |
1625 | memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats)); | |
1626 | dst->stats.signalstrength = quality; | |
1627 | dst->stats.signal = signal; | |
1628 | // printk("==================>stats.signal is %d\n",dst->stats.signal); | |
1629 | dst->stats.noise = noise; | |
1630 | ||
1631 | ||
1632 | dst->capability = src->capability; | |
1633 | memcpy(dst->rates, src->rates, src->rates_len); | |
1634 | dst->rates_len = src->rates_len; | |
1635 | memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); | |
1636 | dst->rates_ex_len = src->rates_ex_len; | |
1637 | dst->HighestOperaRate= src->HighestOperaRate; | |
d599edca | 1638 | //printk("==========>in %s: src->ssid is %s,chan is %d\n",__func__,src->ssid,src->channel); |
c8d86be3 GKH |
1639 | |
1640 | //YJ,add,080819,for hidden ap | |
1641 | if(src->ssid_len > 0) | |
1642 | { | |
1643 | //if(src->ssid_len == 13) | |
1644 | // printk("=====================>>>>>>>> Dst ssid: %s Src ssid: %s\n", dst->ssid, src->ssid); | |
1645 | memset(dst->ssid, 0, dst->ssid_len); | |
1646 | dst->ssid_len = src->ssid_len; | |
1647 | memcpy(dst->ssid, src->ssid, src->ssid_len); | |
1648 | } | |
1649 | //YJ,add,080819,for hidden ap,end | |
1650 | ||
1651 | dst->channel = src->channel; | |
1652 | dst->mode = src->mode; | |
1653 | dst->flags = src->flags; | |
1654 | dst->time_stamp[0] = src->time_stamp[0]; | |
1655 | dst->time_stamp[1] = src->time_stamp[1]; | |
1656 | ||
1657 | dst->beacon_interval = src->beacon_interval; | |
1658 | dst->listen_interval = src->listen_interval; | |
1659 | dst->atim_window = src->atim_window; | |
1660 | dst->dtim_period = src->dtim_period; | |
1661 | dst->dtim_data = src->dtim_data; | |
1662 | dst->last_dtim_sta_time[0] = src->last_dtim_sta_time[0]; | |
1663 | dst->last_dtim_sta_time[1] = src->last_dtim_sta_time[1]; | |
1664 | // printk("update:%s, dtim_period:%x, dtim_data:%x\n", src->ssid, src->dtim_period, src->dtim_data); | |
1665 | memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len); | |
1666 | dst->wpa_ie_len = src->wpa_ie_len; | |
1667 | memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len); | |
1668 | dst->rsn_ie_len = src->rsn_ie_len; | |
1669 | ||
1670 | dst->last_scanned = jiffies; | |
1671 | /* dst->last_associate is not overwritten */ | |
1672 | // disable QoS process now, added by David 2006/7/25 | |
1673 | #if 1 | |
1674 | dst->wmm_info = src->wmm_info; //sure to exist in beacon or probe response frame. | |
1675 | /* | |
1676 | if((dst->wmm_info^src->wmm_info)&0x0f) {//Param Set Count change, update Parameter | |
1677 | memcpy(dst->wmm_param, src->wmm_param, IEEE80211_AC_PRAM_LEN); | |
1678 | } | |
1679 | */ | |
1680 | if(src->wmm_param[0].ac_aci_acm_aifsn|| \ | |
1681 | src->wmm_param[1].ac_aci_acm_aifsn|| \ | |
1682 | src->wmm_param[2].ac_aci_acm_aifsn|| \ | |
1683 | src->wmm_param[1].ac_aci_acm_aifsn) { | |
1684 | memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN); | |
1685 | } | |
1686 | dst->QoS_Enable = src->QoS_Enable; | |
1687 | #else | |
1688 | dst->QoS_Enable = 1;//for Rtl8187 simulation | |
1689 | #endif | |
1690 | dst->SignalStrength = src->SignalStrength; | |
1691 | #ifdef THOMAS_TURBO | |
1692 | dst->Turbo_Enable = src->Turbo_Enable; | |
1693 | #endif | |
1694 | #ifdef ENABLE_DOT11D | |
1695 | dst->CountryIeLen = src->CountryIeLen; | |
1696 | memcpy(dst->CountryIeBuf, src->CountryIeBuf, src->CountryIeLen); | |
1697 | #endif | |
1698 | } | |
1699 | ||
1700 | ||
1701 | inline void ieee80211_process_probe_response( | |
1702 | struct ieee80211_device *ieee, | |
1703 | struct ieee80211_probe_response *beacon, | |
1704 | struct ieee80211_rx_stats *stats) | |
1705 | { | |
1706 | struct ieee80211_network network; | |
1707 | struct ieee80211_network *target; | |
1708 | struct ieee80211_network *oldest = NULL; | |
1709 | #ifdef CONFIG_IEEE80211_DEBUG | |
1710 | struct ieee80211_info_element *info_element = &beacon->info_element; | |
1711 | #endif | |
1712 | unsigned long flags; | |
1713 | short renew; | |
1714 | u8 wmm_info; | |
1715 | u8 is_beacon = (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_BEACON)? 1:0; //YJ,add,080819,for hidden ap | |
1716 | ||
1717 | memset(&network, 0, sizeof(struct ieee80211_network)); | |
1718 | //rz | |
1719 | #ifdef _RTL8187_EXT_PATCH_ | |
1720 | if((ieee->iw_mode == ieee->iw_ext_mode) && ieee->ext_patch_ieee80211_process_probe_response_1) { | |
1721 | ieee->ext_patch_ieee80211_process_probe_response_1(ieee, beacon, stats); | |
1722 | return; | |
1723 | } | |
1724 | #endif | |
1725 | ||
1726 | IEEE80211_DEBUG_SCAN( | |
1727 | "'%s' (" MAC_FMT "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", | |
1728 | escape_essid(info_element->data, info_element->len), | |
1729 | MAC_ARG(beacon->header.addr3), | |
1730 | (beacon->capability & (1<<0xf)) ? '1' : '0', | |
1731 | (beacon->capability & (1<<0xe)) ? '1' : '0', | |
1732 | (beacon->capability & (1<<0xd)) ? '1' : '0', | |
1733 | (beacon->capability & (1<<0xc)) ? '1' : '0', | |
1734 | (beacon->capability & (1<<0xb)) ? '1' : '0', | |
1735 | (beacon->capability & (1<<0xa)) ? '1' : '0', | |
1736 | (beacon->capability & (1<<0x9)) ? '1' : '0', | |
1737 | (beacon->capability & (1<<0x8)) ? '1' : '0', | |
1738 | (beacon->capability & (1<<0x7)) ? '1' : '0', | |
1739 | (beacon->capability & (1<<0x6)) ? '1' : '0', | |
1740 | (beacon->capability & (1<<0x5)) ? '1' : '0', | |
1741 | (beacon->capability & (1<<0x4)) ? '1' : '0', | |
1742 | (beacon->capability & (1<<0x3)) ? '1' : '0', | |
1743 | (beacon->capability & (1<<0x2)) ? '1' : '0', | |
1744 | (beacon->capability & (1<<0x1)) ? '1' : '0', | |
1745 | (beacon->capability & (1<<0x0)) ? '1' : '0'); | |
1746 | #if 0 | |
1747 | if(strcmp(escape_essid(beacon->info_element.data, beacon->info_element.len), "rtl_softap") == 0) | |
1748 | { | |
1749 | if(WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_BEACON) | |
1750 | { | |
1751 | u32 i = 0, len = stats->len; | |
1752 | u8 * p = (u8*)beacon; | |
1753 | printk("-----------------------\n"); | |
1754 | printk("rtl_softap Beacon:"); | |
1755 | for(i=0; i<len; i++) | |
1756 | printk("\t%2.2x", *(p+i)); | |
1757 | printk("\n-----------------------\n"); | |
1758 | } | |
1759 | } | |
1760 | #endif | |
1761 | if (ieee80211_network_init(ieee, beacon, &network, stats)) { | |
1762 | IEEE80211_DEBUG_SCAN("Dropped '%s' (" MAC_FMT ") via %s.\n", | |
1763 | escape_essid(info_element->data, | |
1764 | info_element->len), | |
1765 | MAC_ARG(beacon->header.addr3), | |
1766 | WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == | |
1767 | IEEE80211_STYPE_PROBE_RESP ? | |
1768 | "PROBE RESPONSE" : "BEACON"); | |
1769 | return; | |
1770 | } | |
1771 | ||
1772 | #ifdef ENABLE_DOT11D | |
1773 | // For Asus EeePc request, | |
1774 | // (1) if wireless adapter receive get any 802.11d country code in AP beacon, | |
1775 | // wireless adapter should follow the country code. | |
1776 | // (2) If there is no any country code in beacon, | |
1777 | // then wireless adapter should do active scan from ch1~11 and | |
1778 | // passive scan from ch12~14 | |
1779 | if(ieee->bGlobalDomain) | |
1780 | { | |
1781 | if (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_PROBE_RESP) | |
1782 | { | |
1783 | // Case 1: Country code | |
1784 | if(IS_COUNTRY_IE_VALID(ieee) ) | |
1785 | { | |
1786 | if( !IsLegalChannel(ieee, network.channel) ) | |
1787 | { | |
1788 | printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network.channel); | |
1789 | return; | |
1790 | } | |
1791 | } | |
1792 | // Case 2: No any country code. | |
1793 | else | |
1794 | { | |
1795 | // Filter over channel ch12~14 | |
1796 | if(network.channel > 11) | |
1797 | { | |
1798 | printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network.channel); | |
1799 | return; | |
1800 | } | |
1801 | } | |
1802 | } | |
1803 | else | |
1804 | { | |
1805 | // Case 1: Country code | |
1806 | if(IS_COUNTRY_IE_VALID(ieee) ) | |
1807 | { | |
1808 | if( !IsLegalChannel(ieee, network.channel) ) | |
1809 | { | |
1810 | printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n",network.channel); | |
1811 | return; | |
1812 | } | |
1813 | } | |
1814 | // Case 2: No any country code. | |
1815 | else | |
1816 | { | |
1817 | // Filter over channel ch12~14 | |
1818 | if(network.channel > 14) | |
1819 | { | |
1820 | printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n",network.channel); | |
1821 | return; | |
1822 | } | |
1823 | } | |
1824 | } | |
1825 | } | |
1826 | #endif | |
1827 | /* The network parsed correctly -- so now we scan our known networks | |
1828 | * to see if we can find it in our list. | |
1829 | * | |
1830 | * NOTE: This search is definitely not optimized. Once its doing | |
1831 | * the "right thing" we'll optimize it for efficiency if | |
1832 | * necessary */ | |
1833 | ||
1834 | /* Search for this entry in the list and update it if it is | |
1835 | * already there. */ | |
1836 | ||
1837 | spin_lock_irqsave(&ieee->lock, flags); | |
1838 | ||
1839 | if(is_same_network(&ieee->current_network, &network, ieee)) { | |
1840 | wmm_info = ieee->current_network.wmm_info; | |
1841 | //YJ,add,080819,for hidden ap | |
1842 | if(is_beacon == 0) | |
1843 | network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & ieee->current_network.flags); | |
1844 | else if(ieee->state == IEEE80211_LINKED) | |
1845 | ieee->NumRxBcnInPeriod++; | |
1846 | //YJ,add,080819,for hidden ap,end | |
1847 | //printk("====>network.ssid=%s cur_ssid=%s\n", network.ssid, ieee->current_network.ssid); | |
1848 | update_network(&ieee->current_network, &network); | |
1849 | } | |
1850 | ||
1851 | list_for_each_entry(target, &ieee->network_list, list) { | |
1852 | if (is_same_network(target, &network, ieee)) | |
1853 | break; | |
1854 | if ((oldest == NULL) || | |
1855 | (target->last_scanned < oldest->last_scanned)) | |
1856 | oldest = target; | |
1857 | } | |
1858 | ||
1859 | /* If we didn't find a match, then get a new network slot to initialize | |
1860 | * with this beacon's information */ | |
1861 | if (&target->list == &ieee->network_list) { | |
1862 | if (list_empty(&ieee->network_free_list)) { | |
1863 | /* If there are no more slots, expire the oldest */ | |
1864 | list_del(&oldest->list); | |
1865 | target = oldest; | |
1866 | IEEE80211_DEBUG_SCAN("Expired '%s' (" MAC_FMT ") from " | |
1867 | "network list.\n", | |
1868 | escape_essid(target->ssid, | |
1869 | target->ssid_len), | |
1870 | MAC_ARG(target->bssid)); | |
1871 | } else { | |
1872 | /* Otherwise just pull from the free list */ | |
1873 | target = list_entry(ieee->network_free_list.next, | |
1874 | struct ieee80211_network, list); | |
1875 | list_del(ieee->network_free_list.next); | |
1876 | } | |
1877 | ||
1878 | ||
1879 | #ifdef CONFIG_IEEE80211_DEBUG | |
1880 | IEEE80211_DEBUG_SCAN("Adding '%s' (" MAC_FMT ") via %s.\n", | |
1881 | escape_essid(network.ssid, | |
1882 | network.ssid_len), | |
1883 | MAC_ARG(network.bssid), | |
1884 | WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == | |
1885 | IEEE80211_STYPE_PROBE_RESP ? | |
1886 | "PROBE RESPONSE" : "BEACON"); | |
1887 | #endif | |
1888 | ||
1889 | #ifdef _RTL8187_EXT_PATCH_ | |
1890 | network.ext_entry = target->ext_entry; | |
1891 | #endif | |
1892 | memcpy(target, &network, sizeof(*target)); | |
1893 | list_add_tail(&target->list, &ieee->network_list); | |
1894 | if(ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) | |
1895 | ieee80211_softmac_new_net(ieee,&network); | |
1896 | } else { | |
1897 | IEEE80211_DEBUG_SCAN("Updating '%s' (" MAC_FMT ") via %s.\n", | |
1898 | escape_essid(target->ssid, | |
1899 | target->ssid_len), | |
1900 | MAC_ARG(target->bssid), | |
1901 | WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == | |
1902 | IEEE80211_STYPE_PROBE_RESP ? | |
1903 | "PROBE RESPONSE" : "BEACON"); | |
1904 | ||
1905 | /* we have an entry and we are going to update it. But this entry may | |
1906 | * be already expired. In this case we do the same as we found a new | |
1907 | * net and call the new_net handler | |
1908 | */ | |
1909 | renew = !time_after(target->last_scanned + ieee->scan_age, jiffies); | |
1910 | //YJ,add,080819,for hidden ap | |
1911 | if(is_beacon == 0) | |
1912 | network.flags = (~NETWORK_EMPTY_ESSID & network.flags)|(NETWORK_EMPTY_ESSID & target->flags); | |
1913 | //if(strncmp(network.ssid, "linksys-c",9) == 0) | |
1914 | // printk("====>2 network.ssid=%s FLAG=%d target.ssid=%s FLAG=%d\n", network.ssid, network.flags, target->ssid, target->flags); | |
1915 | if(((network.flags & NETWORK_EMPTY_ESSID) == NETWORK_EMPTY_ESSID) \ | |
1916 | && (((network.ssid_len > 0) && (strncmp(target->ssid, network.ssid, network.ssid_len)))\ | |
1917 | ||((ieee->current_network.ssid_len == network.ssid_len)&&(strncmp(ieee->current_network.ssid, network.ssid, network.ssid_len) == 0)&&(ieee->state == IEEE80211_NOLINK)))) | |
1918 | renew = 1; | |
1919 | //YJ,add,080819,for hidden ap,end | |
1920 | update_network(target, &network); | |
1921 | if(renew && (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE)) | |
1922 | ieee80211_softmac_new_net(ieee,&network); | |
1923 | } | |
1924 | ||
1925 | spin_unlock_irqrestore(&ieee->lock, flags); | |
1926 | } | |
1927 | ||
1928 | void ieee80211_rx_mgt(struct ieee80211_device *ieee, | |
1929 | struct ieee80211_hdr *header, | |
1930 | struct ieee80211_rx_stats *stats) | |
1931 | { | |
1932 | switch (WLAN_FC_GET_STYPE(header->frame_ctl)) { | |
1933 | ||
1934 | case IEEE80211_STYPE_BEACON: | |
1935 | IEEE80211_DEBUG_MGMT("received BEACON (%d)\n", | |
1936 | WLAN_FC_GET_STYPE(header->frame_ctl)); | |
1937 | IEEE80211_DEBUG_SCAN("Beacon\n"); | |
1938 | ieee80211_process_probe_response( | |
1939 | ieee, (struct ieee80211_probe_response *)header, stats); | |
1940 | break; | |
1941 | ||
1942 | case IEEE80211_STYPE_PROBE_RESP: | |
1943 | IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", | |
1944 | WLAN_FC_GET_STYPE(header->frame_ctl)); | |
1945 | IEEE80211_DEBUG_SCAN("Probe response\n"); | |
1946 | ieee80211_process_probe_response( | |
1947 | ieee, (struct ieee80211_probe_response *)header, stats); | |
1948 | break; | |
1949 | //rz | |
1950 | #ifdef _RTL8187_EXT_PATCH_ | |
1951 | case IEEE80211_STYPE_PROBE_REQ: | |
1952 | IEEE80211_DEBUG_MGMT("received PROBE REQUEST (%d)\n", | |
1953 | WLAN_FC_GET_STYPE(header->frame_ctl)); | |
1954 | IEEE80211_DEBUG_SCAN("Probe request\n"); | |
1955 | /// | |
1956 | if( ieee->iw_mode == ieee->iw_ext_mode && ieee->ext_patch_ieee80211_rx_mgt_on_probe_req ) | |
1957 | ieee->ext_patch_ieee80211_rx_mgt_on_probe_req( ieee, (struct ieee80211_probe_request *)header, stats); | |
1958 | break; | |
1959 | #endif // _RTL8187_EXT_PATCH_ | |
1960 | ||
1961 | } | |
1962 | } | |
1963 | ||
1964 | #if 0 | |
1965 | EXPORT_SYMBOL(ieee80211_rx_mgt); | |
1966 | EXPORT_SYMBOL(ieee80211_rx); | |
1967 | EXPORT_SYMBOL(ieee80211_network_init); | |
1968 | #ifdef _RTL8187_EXT_PATCH_ | |
1969 | EXPORT_SYMBOL(ieee_ext_skb_p80211_to_ether); | |
1970 | #endif | |
1971 | #endif |