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Commit | Line | Data |
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b453872c JG |
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> | |
ebeaddcc | 8 | * Copyright (c) 2004-2005, Intel Corporation |
b453872c JG |
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 | #include <linux/compiler.h> | |
17 | #include <linux/config.h> | |
18 | #include <linux/errno.h> | |
19 | #include <linux/if_arp.h> | |
20 | #include <linux/in6.h> | |
21 | #include <linux/in.h> | |
22 | #include <linux/ip.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/netdevice.h> | |
b453872c JG |
26 | #include <linux/proc_fs.h> |
27 | #include <linux/skbuff.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/tcp.h> | |
30 | #include <linux/types.h> | |
b453872c JG |
31 | #include <linux/wireless.h> |
32 | #include <linux/etherdevice.h> | |
33 | #include <asm/uaccess.h> | |
34 | #include <linux/ctype.h> | |
35 | ||
36 | #include <net/ieee80211.h> | |
37 | ||
858119e1 | 38 | static void ieee80211_monitor_rx(struct ieee80211_device *ieee, |
b453872c JG |
39 | struct sk_buff *skb, |
40 | struct ieee80211_rx_stats *rx_stats) | |
41 | { | |
42 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
43 | u16 fc = le16_to_cpu(hdr->frame_ctl); | |
44 | ||
45 | skb->dev = ieee->dev; | |
46 | skb->mac.raw = skb->data; | |
47 | skb_pull(skb, ieee80211_get_hdrlen(fc)); | |
48 | skb->pkt_type = PACKET_OTHERHOST; | |
49 | skb->protocol = __constant_htons(ETH_P_80211_RAW); | |
50 | memset(skb->cb, 0, sizeof(skb->cb)); | |
51 | netif_rx(skb); | |
52 | } | |
53 | ||
b453872c | 54 | /* Called only as a tasklet (software IRQ) */ |
0edd5b44 JG |
55 | static struct ieee80211_frag_entry *ieee80211_frag_cache_find(struct |
56 | ieee80211_device | |
57 | *ieee, | |
58 | unsigned int seq, | |
59 | unsigned int frag, | |
60 | u8 * src, | |
61 | u8 * dst) | |
b453872c JG |
62 | { |
63 | struct ieee80211_frag_entry *entry; | |
64 | int i; | |
65 | ||
66 | for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) { | |
67 | entry = &ieee->frag_cache[i]; | |
68 | if (entry->skb != NULL && | |
69 | time_after(jiffies, entry->first_frag_time + 2 * HZ)) { | |
0edd5b44 JG |
70 | IEEE80211_DEBUG_FRAG("expiring fragment cache entry " |
71 | "seq=%u last_frag=%u\n", | |
72 | entry->seq, entry->last_frag); | |
b453872c JG |
73 | dev_kfree_skb_any(entry->skb); |
74 | entry->skb = NULL; | |
75 | } | |
76 | ||
77 | if (entry->skb != NULL && entry->seq == seq && | |
78 | (entry->last_frag + 1 == frag || frag == -1) && | |
d3f4a687 KK |
79 | !compare_ether_addr(entry->src_addr, src) && |
80 | !compare_ether_addr(entry->dst_addr, dst)) | |
b453872c JG |
81 | return entry; |
82 | } | |
83 | ||
84 | return NULL; | |
85 | } | |
86 | ||
87 | /* Called only as a tasklet (software IRQ) */ | |
0edd5b44 | 88 | static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee, |
ee34af37 | 89 | struct ieee80211_hdr_4addr *hdr) |
b453872c JG |
90 | { |
91 | struct sk_buff *skb = NULL; | |
92 | u16 sc; | |
93 | unsigned int frag, seq; | |
94 | struct ieee80211_frag_entry *entry; | |
95 | ||
96 | sc = le16_to_cpu(hdr->seq_ctl); | |
97 | frag = WLAN_GET_SEQ_FRAG(sc); | |
98 | seq = WLAN_GET_SEQ_SEQ(sc); | |
99 | ||
100 | if (frag == 0) { | |
101 | /* Reserve enough space to fit maximum frame length */ | |
102 | skb = dev_alloc_skb(ieee->dev->mtu + | |
ee34af37 | 103 | sizeof(struct ieee80211_hdr_4addr) + |
0edd5b44 JG |
104 | 8 /* LLC */ + |
105 | 2 /* alignment */ + | |
106 | 8 /* WEP */ + ETH_ALEN /* WDS */ ); | |
b453872c JG |
107 | if (skb == NULL) |
108 | return NULL; | |
109 | ||
110 | entry = &ieee->frag_cache[ieee->frag_next_idx]; | |
111 | ieee->frag_next_idx++; | |
112 | if (ieee->frag_next_idx >= IEEE80211_FRAG_CACHE_LEN) | |
113 | ieee->frag_next_idx = 0; | |
114 | ||
115 | if (entry->skb != NULL) | |
116 | dev_kfree_skb_any(entry->skb); | |
117 | ||
118 | entry->first_frag_time = jiffies; | |
119 | entry->seq = seq; | |
120 | entry->last_frag = frag; | |
121 | entry->skb = skb; | |
122 | memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); | |
123 | memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); | |
124 | } else { | |
125 | /* received a fragment of a frame for which the head fragment | |
126 | * should have already been received */ | |
127 | entry = ieee80211_frag_cache_find(ieee, seq, frag, hdr->addr2, | |
128 | hdr->addr1); | |
129 | if (entry != NULL) { | |
130 | entry->last_frag = frag; | |
131 | skb = entry->skb; | |
132 | } | |
133 | } | |
134 | ||
135 | return skb; | |
136 | } | |
137 | ||
b453872c JG |
138 | /* Called only as a tasklet (software IRQ) */ |
139 | static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, | |
ee34af37 | 140 | struct ieee80211_hdr_4addr *hdr) |
b453872c JG |
141 | { |
142 | u16 sc; | |
143 | unsigned int seq; | |
144 | struct ieee80211_frag_entry *entry; | |
145 | ||
146 | sc = le16_to_cpu(hdr->seq_ctl); | |
147 | seq = WLAN_GET_SEQ_SEQ(sc); | |
148 | ||
149 | entry = ieee80211_frag_cache_find(ieee, seq, -1, hdr->addr2, | |
150 | hdr->addr1); | |
151 | ||
152 | if (entry == NULL) { | |
0edd5b44 JG |
153 | IEEE80211_DEBUG_FRAG("could not invalidate fragment cache " |
154 | "entry (seq=%u)\n", seq); | |
b453872c JG |
155 | return -1; |
156 | } | |
157 | ||
158 | entry->skb = NULL; | |
159 | return 0; | |
160 | } | |
161 | ||
b453872c JG |
162 | #ifdef NOT_YET |
163 | /* ieee80211_rx_frame_mgtmt | |
164 | * | |
165 | * Responsible for handling management control frames | |
166 | * | |
167 | * Called by ieee80211_rx */ | |
858119e1 | 168 | static int |
b453872c JG |
169 | ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, |
170 | struct ieee80211_rx_stats *rx_stats, u16 type, | |
171 | u16 stype) | |
172 | { | |
173 | if (ieee->iw_mode == IW_MODE_MASTER) { | |
174 | printk(KERN_DEBUG "%s: Master mode not yet suppported.\n", | |
175 | ieee->dev->name); | |
176 | return 0; | |
177 | /* | |
ee34af37 | 178 | hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr_4addr *) |
b453872c JG |
179 | skb->data);*/ |
180 | } | |
181 | ||
182 | if (ieee->hostapd && type == WLAN_FC_TYPE_MGMT) { | |
183 | if (stype == WLAN_FC_STYPE_BEACON && | |
184 | ieee->iw_mode == IW_MODE_MASTER) { | |
185 | struct sk_buff *skb2; | |
186 | /* Process beacon frames also in kernel driver to | |
187 | * update STA(AP) table statistics */ | |
188 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
189 | if (skb2) | |
190 | hostap_rx(skb2->dev, skb2, rx_stats); | |
191 | } | |
192 | ||
193 | /* send management frames to the user space daemon for | |
194 | * processing */ | |
195 | ieee->apdevstats.rx_packets++; | |
196 | ieee->apdevstats.rx_bytes += skb->len; | |
197 | prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT); | |
198 | return 0; | |
199 | } | |
200 | ||
0edd5b44 | 201 | if (ieee->iw_mode == IW_MODE_MASTER) { |
b453872c JG |
202 | if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { |
203 | printk(KERN_DEBUG "%s: unknown management frame " | |
204 | "(type=0x%02x, stype=0x%02x) dropped\n", | |
205 | skb->dev->name, type, stype); | |
206 | return -1; | |
207 | } | |
208 | ||
209 | hostap_rx(skb->dev, skb, rx_stats); | |
210 | return 0; | |
211 | } | |
212 | ||
213 | printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame " | |
214 | "received in non-Host AP mode\n", skb->dev->name); | |
215 | return -1; | |
216 | } | |
217 | #endif | |
218 | ||
b453872c JG |
219 | /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ |
220 | /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ | |
0edd5b44 JG |
221 | static unsigned char rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
222 | ||
b453872c JG |
223 | /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ |
224 | static unsigned char bridge_tunnel_header[] = | |
0edd5b44 | 225 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; |
b453872c JG |
226 | /* No encapsulation header if EtherType < 0x600 (=length) */ |
227 | ||
228 | /* Called by ieee80211_rx_frame_decrypt */ | |
229 | static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee, | |
230 | struct sk_buff *skb) | |
231 | { | |
232 | struct net_device *dev = ieee->dev; | |
233 | u16 fc, ethertype; | |
ee34af37 | 234 | struct ieee80211_hdr_3addr *hdr; |
b453872c JG |
235 | u8 *pos; |
236 | ||
237 | if (skb->len < 24) | |
238 | return 0; | |
239 | ||
ee34af37 | 240 | hdr = (struct ieee80211_hdr_3addr *)skb->data; |
b453872c JG |
241 | fc = le16_to_cpu(hdr->frame_ctl); |
242 | ||
243 | /* check that the frame is unicast frame to us */ | |
244 | if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
245 | IEEE80211_FCTL_TODS && | |
d3f4a687 KK |
246 | !compare_ether_addr(hdr->addr1, dev->dev_addr) && |
247 | !compare_ether_addr(hdr->addr3, dev->dev_addr)) { | |
b453872c JG |
248 | /* ToDS frame with own addr BSSID and DA */ |
249 | } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
250 | IEEE80211_FCTL_FROMDS && | |
d3f4a687 | 251 | !compare_ether_addr(hdr->addr1, dev->dev_addr)) { |
b453872c JG |
252 | /* FromDS frame with own addr as DA */ |
253 | } else | |
254 | return 0; | |
255 | ||
256 | if (skb->len < 24 + 8) | |
257 | return 0; | |
258 | ||
259 | /* check for port access entity Ethernet type */ | |
260 | pos = skb->data + 24; | |
261 | ethertype = (pos[6] << 8) | pos[7]; | |
262 | if (ethertype == ETH_P_PAE) | |
263 | return 1; | |
264 | ||
265 | return 0; | |
266 | } | |
267 | ||
268 | /* Called only as a tasklet (software IRQ), by ieee80211_rx */ | |
858119e1 | 269 | static int |
0edd5b44 | 270 | ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb, |
b453872c JG |
271 | struct ieee80211_crypt_data *crypt) |
272 | { | |
ee34af37 | 273 | struct ieee80211_hdr_3addr *hdr; |
b453872c JG |
274 | int res, hdrlen; |
275 | ||
276 | if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) | |
277 | return 0; | |
278 | ||
ee34af37 | 279 | hdr = (struct ieee80211_hdr_3addr *)skb->data; |
b453872c JG |
280 | hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); |
281 | ||
b453872c JG |
282 | atomic_inc(&crypt->refcnt); |
283 | res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); | |
284 | atomic_dec(&crypt->refcnt); | |
285 | if (res < 0) { | |
0edd5b44 JG |
286 | IEEE80211_DEBUG_DROP("decryption failed (SA=" MAC_FMT |
287 | ") res=%d\n", MAC_ARG(hdr->addr2), res); | |
b453872c JG |
288 | if (res == -2) |
289 | IEEE80211_DEBUG_DROP("Decryption failed ICV " | |
290 | "mismatch (key %d)\n", | |
291 | skb->data[hdrlen + 3] >> 6); | |
292 | ieee->ieee_stats.rx_discards_undecryptable++; | |
293 | return -1; | |
294 | } | |
295 | ||
296 | return res; | |
297 | } | |
298 | ||
b453872c | 299 | /* Called only as a tasklet (software IRQ), by ieee80211_rx */ |
858119e1 | 300 | static int |
0edd5b44 JG |
301 | ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee, |
302 | struct sk_buff *skb, int keyidx, | |
303 | struct ieee80211_crypt_data *crypt) | |
b453872c | 304 | { |
ee34af37 | 305 | struct ieee80211_hdr_3addr *hdr; |
b453872c JG |
306 | int res, hdrlen; |
307 | ||
308 | if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) | |
309 | return 0; | |
310 | ||
ee34af37 | 311 | hdr = (struct ieee80211_hdr_3addr *)skb->data; |
b453872c JG |
312 | hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); |
313 | ||
314 | atomic_inc(&crypt->refcnt); | |
315 | res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); | |
316 | atomic_dec(&crypt->refcnt); | |
317 | if (res < 0) { | |
318 | printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" | |
319 | " (SA=" MAC_FMT " keyidx=%d)\n", | |
320 | ieee->dev->name, MAC_ARG(hdr->addr2), keyidx); | |
321 | return -1; | |
322 | } | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
b453872c JG |
327 | /* All received frames are sent to this function. @skb contains the frame in |
328 | * IEEE 802.11 format, i.e., in the format it was sent over air. | |
329 | * This function is called only as a tasklet (software IRQ). */ | |
330 | int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, | |
331 | struct ieee80211_rx_stats *rx_stats) | |
332 | { | |
333 | struct net_device *dev = ieee->dev; | |
ee34af37 | 334 | struct ieee80211_hdr_4addr *hdr; |
b453872c JG |
335 | size_t hdrlen; |
336 | u16 fc, type, stype, sc; | |
337 | struct net_device_stats *stats; | |
338 | unsigned int frag; | |
339 | u8 *payload; | |
340 | u16 ethertype; | |
341 | #ifdef NOT_YET | |
342 | struct net_device *wds = NULL; | |
343 | struct sk_buff *skb2 = NULL; | |
344 | struct net_device *wds = NULL; | |
345 | int frame_authorized = 0; | |
346 | int from_assoc_ap = 0; | |
347 | void *sta = NULL; | |
348 | #endif | |
349 | u8 dst[ETH_ALEN]; | |
350 | u8 src[ETH_ALEN]; | |
351 | struct ieee80211_crypt_data *crypt = NULL; | |
352 | int keyidx = 0; | |
353 | ||
ee34af37 | 354 | hdr = (struct ieee80211_hdr_4addr *)skb->data; |
b453872c JG |
355 | stats = &ieee->stats; |
356 | ||
357 | if (skb->len < 10) { | |
0edd5b44 | 358 | printk(KERN_INFO "%s: SKB length < 10\n", dev->name); |
b453872c JG |
359 | goto rx_dropped; |
360 | } | |
361 | ||
362 | fc = le16_to_cpu(hdr->frame_ctl); | |
363 | type = WLAN_FC_GET_TYPE(fc); | |
364 | stype = WLAN_FC_GET_STYPE(fc); | |
365 | sc = le16_to_cpu(hdr->seq_ctl); | |
366 | frag = WLAN_GET_SEQ_FRAG(sc); | |
367 | hdrlen = ieee80211_get_hdrlen(fc); | |
368 | ||
b453872c JG |
369 | /* Put this code here so that we avoid duplicating it in all |
370 | * Rx paths. - Jean II */ | |
371 | #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ | |
fd7a516e | 372 | #ifdef CONFIG_NET_RADIO |
b453872c | 373 | /* If spy monitoring on */ |
74079fdc | 374 | if (ieee->spy_data.spy_number > 0) { |
b453872c | 375 | struct iw_quality wstats; |
74079fdc JK |
376 | |
377 | wstats.updated = 0; | |
378 | if (rx_stats->mask & IEEE80211_STATMASK_RSSI) { | |
379 | wstats.level = rx_stats->rssi; | |
380 | wstats.updated |= IW_QUAL_LEVEL_UPDATED; | |
381 | } else | |
382 | wstats.updated |= IW_QUAL_LEVEL_INVALID; | |
383 | ||
384 | if (rx_stats->mask & IEEE80211_STATMASK_NOISE) { | |
385 | wstats.noise = rx_stats->noise; | |
386 | wstats.updated |= IW_QUAL_NOISE_UPDATED; | |
387 | } else | |
388 | wstats.updated |= IW_QUAL_NOISE_INVALID; | |
389 | ||
390 | if (rx_stats->mask & IEEE80211_STATMASK_SIGNAL) { | |
391 | wstats.qual = rx_stats->signal; | |
392 | wstats.updated |= IW_QUAL_QUAL_UPDATED; | |
393 | } else | |
394 | wstats.updated |= IW_QUAL_QUAL_INVALID; | |
395 | ||
b453872c | 396 | /* Update spy records */ |
74079fdc | 397 | wireless_spy_update(ieee->dev, hdr->addr2, &wstats); |
b453872c | 398 | } |
fd7a516e | 399 | #endif /* CONFIG_NET_RADIO */ |
0edd5b44 | 400 | #endif /* IW_WIRELESS_SPY */ |
74079fdc JK |
401 | |
402 | #ifdef NOT_YET | |
b453872c JG |
403 | hostap_update_rx_stats(local->ap, hdr, rx_stats); |
404 | #endif | |
405 | ||
b453872c JG |
406 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
407 | ieee80211_monitor_rx(ieee, skb, rx_stats); | |
408 | stats->rx_packets++; | |
409 | stats->rx_bytes += skb->len; | |
410 | return 1; | |
411 | } | |
b453872c | 412 | |
3c19065a SH |
413 | if (is_multicast_ether_addr(hdr->addr1) |
414 | ? ieee->host_mc_decrypt : ieee->host_decrypt) { | |
b453872c JG |
415 | int idx = 0; |
416 | if (skb->len >= hdrlen + 3) | |
417 | idx = skb->data[hdrlen + 3] >> 6; | |
418 | crypt = ieee->crypt[idx]; | |
419 | #ifdef NOT_YET | |
420 | sta = NULL; | |
421 | ||
422 | /* Use station specific key to override default keys if the | |
423 | * receiver address is a unicast address ("individual RA"). If | |
424 | * bcrx_sta_key parameter is set, station specific key is used | |
425 | * even with broad/multicast targets (this is against IEEE | |
426 | * 802.11, but makes it easier to use different keys with | |
427 | * stations that do not support WEP key mapping). */ | |
428 | ||
429 | if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key) | |
0edd5b44 JG |
430 | (void)hostap_handle_sta_crypto(local, hdr, &crypt, |
431 | &sta); | |
b453872c JG |
432 | #endif |
433 | ||
434 | /* allow NULL decrypt to indicate an station specific override | |
435 | * for default encryption */ | |
436 | if (crypt && (crypt->ops == NULL || | |
437 | crypt->ops->decrypt_mpdu == NULL)) | |
438 | crypt = NULL; | |
439 | ||
f13baae4 | 440 | if (!crypt && (fc & IEEE80211_FCTL_PROTECTED)) { |
b453872c JG |
441 | /* This seems to be triggered by some (multicast?) |
442 | * frames from other than current BSS, so just drop the | |
443 | * frames silently instead of filling system log with | |
444 | * these reports. */ | |
445 | IEEE80211_DEBUG_DROP("Decryption failed (not set)" | |
446 | " (SA=" MAC_FMT ")\n", | |
447 | MAC_ARG(hdr->addr2)); | |
448 | ieee->ieee_stats.rx_discards_undecryptable++; | |
449 | goto rx_dropped; | |
450 | } | |
451 | } | |
b453872c JG |
452 | #ifdef NOT_YET |
453 | if (type != WLAN_FC_TYPE_DATA) { | |
454 | if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && | |
f13baae4 | 455 | fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt && |
0edd5b44 | 456 | (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) { |
b453872c JG |
457 | printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " |
458 | "from " MAC_FMT "\n", dev->name, | |
459 | MAC_ARG(hdr->addr2)); | |
460 | /* TODO: could inform hostapd about this so that it | |
461 | * could send auth failure report */ | |
462 | goto rx_dropped; | |
463 | } | |
464 | ||
465 | if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype)) | |
466 | goto rx_dropped; | |
467 | else | |
468 | goto rx_exit; | |
469 | } | |
470 | #endif | |
471 | ||
472 | /* Data frame - extract src/dst addresses */ | |
286d9747 | 473 | if (skb->len < IEEE80211_3ADDR_LEN) |
b453872c JG |
474 | goto rx_dropped; |
475 | ||
476 | switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { | |
477 | case IEEE80211_FCTL_FROMDS: | |
478 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
479 | memcpy(src, hdr->addr3, ETH_ALEN); | |
480 | break; | |
481 | case IEEE80211_FCTL_TODS: | |
482 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
483 | memcpy(src, hdr->addr2, ETH_ALEN); | |
484 | break; | |
485 | case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: | |
286d9747 | 486 | if (skb->len < IEEE80211_4ADDR_LEN) |
b453872c JG |
487 | goto rx_dropped; |
488 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
489 | memcpy(src, hdr->addr4, ETH_ALEN); | |
490 | break; | |
491 | case 0: | |
492 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
493 | memcpy(src, hdr->addr2, ETH_ALEN); | |
494 | break; | |
495 | } | |
496 | ||
497 | #ifdef NOT_YET | |
498 | if (hostap_rx_frame_wds(ieee, hdr, fc, &wds)) | |
499 | goto rx_dropped; | |
500 | if (wds) { | |
501 | skb->dev = dev = wds; | |
502 | stats = hostap_get_stats(dev); | |
503 | } | |
504 | ||
505 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && | |
0edd5b44 JG |
506 | (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == |
507 | IEEE80211_FCTL_FROMDS && ieee->stadev | |
d3f4a687 | 508 | && !compare_ether_addr(hdr->addr2, ieee->assoc_ap_addr)) { |
b453872c JG |
509 | /* Frame from BSSID of the AP for which we are a client */ |
510 | skb->dev = dev = ieee->stadev; | |
511 | stats = hostap_get_stats(dev); | |
512 | from_assoc_ap = 1; | |
513 | } | |
514 | #endif | |
515 | ||
516 | dev->last_rx = jiffies; | |
517 | ||
518 | #ifdef NOT_YET | |
519 | if ((ieee->iw_mode == IW_MODE_MASTER || | |
0edd5b44 | 520 | ieee->iw_mode == IW_MODE_REPEAT) && !from_assoc_ap) { |
b453872c JG |
521 | switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, |
522 | wds != NULL)) { | |
523 | case AP_RX_CONTINUE_NOT_AUTHORIZED: | |
524 | frame_authorized = 0; | |
525 | break; | |
526 | case AP_RX_CONTINUE: | |
527 | frame_authorized = 1; | |
528 | break; | |
529 | case AP_RX_DROP: | |
530 | goto rx_dropped; | |
531 | case AP_RX_EXIT: | |
532 | goto rx_exit; | |
533 | } | |
534 | } | |
535 | #endif | |
536 | ||
537 | /* Nullfunc frames may have PS-bit set, so they must be passed to | |
538 | * hostap_handle_sta_rx() before being dropped here. */ | |
9e8571af JK |
539 | |
540 | stype &= ~IEEE80211_STYPE_QOS_DATA; | |
541 | ||
b453872c JG |
542 | if (stype != IEEE80211_STYPE_DATA && |
543 | stype != IEEE80211_STYPE_DATA_CFACK && | |
544 | stype != IEEE80211_STYPE_DATA_CFPOLL && | |
545 | stype != IEEE80211_STYPE_DATA_CFACKPOLL) { | |
546 | if (stype != IEEE80211_STYPE_NULLFUNC) | |
0edd5b44 JG |
547 | IEEE80211_DEBUG_DROP("RX: dropped data frame " |
548 | "with no data (type=0x%02x, " | |
549 | "subtype=0x%02x, len=%d)\n", | |
550 | type, stype, skb->len); | |
b453872c JG |
551 | goto rx_dropped; |
552 | } | |
553 | ||
554 | /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ | |
555 | ||
f13baae4 | 556 | if (ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) && |
b453872c JG |
557 | (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) |
558 | goto rx_dropped; | |
559 | ||
ee34af37 | 560 | hdr = (struct ieee80211_hdr_4addr *)skb->data; |
b453872c JG |
561 | |
562 | /* skb: hdr + (possibly fragmented) plaintext payload */ | |
563 | // PR: FIXME: hostap has additional conditions in the "if" below: | |
f13baae4 | 564 | // ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) && |
b453872c JG |
565 | if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) { |
566 | int flen; | |
567 | struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr); | |
568 | IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag); | |
569 | ||
570 | if (!frag_skb) { | |
571 | IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG, | |
572 | "Rx cannot get skb from fragment " | |
573 | "cache (morefrag=%d seq=%u frag=%u)\n", | |
574 | (fc & IEEE80211_FCTL_MOREFRAGS) != 0, | |
575 | WLAN_GET_SEQ_SEQ(sc), frag); | |
576 | goto rx_dropped; | |
577 | } | |
578 | ||
579 | flen = skb->len; | |
580 | if (frag != 0) | |
581 | flen -= hdrlen; | |
582 | ||
583 | if (frag_skb->tail + flen > frag_skb->end) { | |
584 | printk(KERN_WARNING "%s: host decrypted and " | |
585 | "reassembled frame did not fit skb\n", | |
586 | dev->name); | |
587 | ieee80211_frag_cache_invalidate(ieee, hdr); | |
588 | goto rx_dropped; | |
589 | } | |
590 | ||
591 | if (frag == 0) { | |
592 | /* copy first fragment (including full headers) into | |
593 | * beginning of the fragment cache skb */ | |
594 | memcpy(skb_put(frag_skb, flen), skb->data, flen); | |
595 | } else { | |
596 | /* append frame payload to the end of the fragment | |
597 | * cache skb */ | |
598 | memcpy(skb_put(frag_skb, flen), skb->data + hdrlen, | |
599 | flen); | |
600 | } | |
601 | dev_kfree_skb_any(skb); | |
602 | skb = NULL; | |
603 | ||
604 | if (fc & IEEE80211_FCTL_MOREFRAGS) { | |
605 | /* more fragments expected - leave the skb in fragment | |
606 | * cache for now; it will be delivered to upper layers | |
607 | * after all fragments have been received */ | |
608 | goto rx_exit; | |
609 | } | |
610 | ||
611 | /* this was the last fragment and the frame will be | |
612 | * delivered, so remove skb from fragment cache */ | |
613 | skb = frag_skb; | |
ee34af37 | 614 | hdr = (struct ieee80211_hdr_4addr *)skb->data; |
b453872c JG |
615 | ieee80211_frag_cache_invalidate(ieee, hdr); |
616 | } | |
617 | ||
618 | /* skb: hdr + (possible reassembled) full MSDU payload; possibly still | |
619 | * encrypted/authenticated */ | |
f13baae4 | 620 | if (ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) && |
b453872c JG |
621 | ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) |
622 | goto rx_dropped; | |
623 | ||
ee34af37 | 624 | hdr = (struct ieee80211_hdr_4addr *)skb->data; |
f13baae4 | 625 | if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) { |
0edd5b44 JG |
626 | if ( /*ieee->ieee802_1x && */ |
627 | ieee80211_is_eapol_frame(ieee, skb)) { | |
b453872c JG |
628 | /* pass unencrypted EAPOL frames even if encryption is |
629 | * configured */ | |
b453872c | 630 | } else { |
0edd5b44 JG |
631 | IEEE80211_DEBUG_DROP("encryption configured, but RX " |
632 | "frame not encrypted (SA=" MAC_FMT | |
633 | ")\n", MAC_ARG(hdr->addr2)); | |
b453872c JG |
634 | goto rx_dropped; |
635 | } | |
636 | } | |
637 | ||
f13baae4 | 638 | if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep && |
b453872c | 639 | !ieee80211_is_eapol_frame(ieee, skb)) { |
0edd5b44 JG |
640 | IEEE80211_DEBUG_DROP("dropped unencrypted RX data " |
641 | "frame from " MAC_FMT | |
642 | " (drop_unencrypted=1)\n", | |
643 | MAC_ARG(hdr->addr2)); | |
b453872c JG |
644 | goto rx_dropped; |
645 | } | |
646 | ||
647 | /* skb: hdr + (possible reassembled) full plaintext payload */ | |
648 | ||
649 | payload = skb->data + hdrlen; | |
650 | ethertype = (payload[6] << 8) | payload[7]; | |
651 | ||
652 | #ifdef NOT_YET | |
653 | /* If IEEE 802.1X is used, check whether the port is authorized to send | |
654 | * the received frame. */ | |
655 | if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) { | |
656 | if (ethertype == ETH_P_PAE) { | |
657 | printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n", | |
658 | dev->name); | |
659 | if (ieee->hostapd && ieee->apdev) { | |
660 | /* Send IEEE 802.1X frames to the user | |
661 | * space daemon for processing */ | |
662 | prism2_rx_80211(ieee->apdev, skb, rx_stats, | |
663 | PRISM2_RX_MGMT); | |
664 | ieee->apdevstats.rx_packets++; | |
665 | ieee->apdevstats.rx_bytes += skb->len; | |
666 | goto rx_exit; | |
667 | } | |
668 | } else if (!frame_authorized) { | |
669 | printk(KERN_DEBUG "%s: dropped frame from " | |
670 | "unauthorized port (IEEE 802.1X): " | |
0edd5b44 | 671 | "ethertype=0x%04x\n", dev->name, ethertype); |
b453872c JG |
672 | goto rx_dropped; |
673 | } | |
674 | } | |
675 | #endif | |
676 | ||
677 | /* convert hdr + possible LLC headers into Ethernet header */ | |
678 | if (skb->len - hdrlen >= 8 && | |
679 | ((memcmp(payload, rfc1042_header, SNAP_SIZE) == 0 && | |
680 | ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || | |
681 | memcmp(payload, bridge_tunnel_header, SNAP_SIZE) == 0)) { | |
682 | /* remove RFC1042 or Bridge-Tunnel encapsulation and | |
683 | * replace EtherType */ | |
684 | skb_pull(skb, hdrlen + SNAP_SIZE); | |
685 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
686 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
687 | } else { | |
688 | u16 len; | |
689 | /* Leave Ethernet header part of hdr and full payload */ | |
690 | skb_pull(skb, hdrlen); | |
691 | len = htons(skb->len); | |
692 | memcpy(skb_push(skb, 2), &len, 2); | |
693 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
694 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
695 | } | |
696 | ||
697 | #ifdef NOT_YET | |
698 | if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
0edd5b44 | 699 | IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) { |
b453872c JG |
700 | /* Non-standard frame: get addr4 from its bogus location after |
701 | * the payload */ | |
702 | memcpy(skb->data + ETH_ALEN, | |
703 | skb->data + skb->len - ETH_ALEN, ETH_ALEN); | |
704 | skb_trim(skb, skb->len - ETH_ALEN); | |
705 | } | |
706 | #endif | |
707 | ||
708 | stats->rx_packets++; | |
709 | stats->rx_bytes += skb->len; | |
710 | ||
711 | #ifdef NOT_YET | |
0edd5b44 | 712 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && ieee->ap->bridge_packets) { |
b453872c JG |
713 | if (dst[0] & 0x01) { |
714 | /* copy multicast frame both to the higher layers and | |
715 | * to the wireless media */ | |
716 | ieee->ap->bridged_multicast++; | |
717 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
718 | if (skb2 == NULL) | |
719 | printk(KERN_DEBUG "%s: skb_clone failed for " | |
720 | "multicast frame\n", dev->name); | |
721 | } else if (hostap_is_sta_assoc(ieee->ap, dst)) { | |
722 | /* send frame directly to the associated STA using | |
723 | * wireless media and not passing to higher layers */ | |
724 | ieee->ap->bridged_unicast++; | |
725 | skb2 = skb; | |
726 | skb = NULL; | |
727 | } | |
728 | } | |
729 | ||
730 | if (skb2 != NULL) { | |
731 | /* send to wireless media */ | |
732 | skb2->protocol = __constant_htons(ETH_P_802_3); | |
733 | skb2->mac.raw = skb2->nh.raw = skb2->data; | |
734 | /* skb2->nh.raw = skb2->data + ETH_HLEN; */ | |
735 | skb2->dev = dev; | |
736 | dev_queue_xmit(skb2); | |
737 | } | |
b453872c JG |
738 | #endif |
739 | ||
740 | if (skb) { | |
741 | skb->protocol = eth_type_trans(skb, dev); | |
742 | memset(skb->cb, 0, sizeof(skb->cb)); | |
743 | skb->dev = dev; | |
0edd5b44 | 744 | skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ |
b453872c JG |
745 | netif_rx(skb); |
746 | } | |
747 | ||
0edd5b44 | 748 | rx_exit: |
b453872c JG |
749 | #ifdef NOT_YET |
750 | if (sta) | |
751 | hostap_handle_sta_release(sta); | |
752 | #endif | |
753 | return 1; | |
754 | ||
0edd5b44 | 755 | rx_dropped: |
b453872c JG |
756 | stats->rx_dropped++; |
757 | ||
758 | /* Returning 0 indicates to caller that we have not handled the SKB-- | |
759 | * so it is still allocated and can be used again by underlying | |
760 | * hardware as a DMA target */ | |
761 | return 0; | |
762 | } | |
763 | ||
764 | #define MGMT_FRAME_FIXED_PART_LENGTH 0x24 | |
765 | ||
9e8571af JK |
766 | static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; |
767 | ||
768 | /* | |
769 | * Make ther structure we read from the beacon packet has | |
770 | * the right values | |
771 | */ | |
772 | static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element | |
773 | *info_element, int sub_type) | |
774 | { | |
775 | ||
776 | if (info_element->qui_subtype != sub_type) | |
777 | return -1; | |
778 | if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN)) | |
779 | return -1; | |
780 | if (info_element->qui_type != QOS_OUI_TYPE) | |
781 | return -1; | |
782 | if (info_element->version != QOS_VERSION_1) | |
783 | return -1; | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
788 | /* | |
789 | * Parse a QoS parameter element | |
790 | */ | |
791 | static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info | |
792 | *element_param, struct ieee80211_info_element | |
793 | *info_element) | |
794 | { | |
795 | int ret = 0; | |
796 | u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2; | |
797 | ||
798 | if ((info_element == NULL) || (element_param == NULL)) | |
799 | return -1; | |
800 | ||
801 | if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) { | |
802 | memcpy(element_param->info_element.qui, info_element->data, | |
803 | info_element->len); | |
804 | element_param->info_element.elementID = info_element->id; | |
805 | element_param->info_element.length = info_element->len; | |
806 | } else | |
807 | ret = -1; | |
808 | if (ret == 0) | |
809 | ret = ieee80211_verify_qos_info(&element_param->info_element, | |
810 | QOS_OUI_PARAM_SUB_TYPE); | |
811 | return ret; | |
812 | } | |
813 | ||
814 | /* | |
815 | * Parse a QoS information element | |
816 | */ | |
817 | static int ieee80211_read_qos_info_element(struct | |
818 | ieee80211_qos_information_element | |
819 | *element_info, struct ieee80211_info_element | |
820 | *info_element) | |
821 | { | |
822 | int ret = 0; | |
823 | u16 size = sizeof(struct ieee80211_qos_information_element) - 2; | |
824 | ||
825 | if (element_info == NULL) | |
826 | return -1; | |
827 | if (info_element == NULL) | |
828 | return -1; | |
829 | ||
830 | if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) { | |
831 | memcpy(element_info->qui, info_element->data, | |
832 | info_element->len); | |
833 | element_info->elementID = info_element->id; | |
834 | element_info->length = info_element->len; | |
835 | } else | |
836 | ret = -1; | |
837 | ||
838 | if (ret == 0) | |
839 | ret = ieee80211_verify_qos_info(element_info, | |
840 | QOS_OUI_INFO_SUB_TYPE); | |
841 | return ret; | |
842 | } | |
843 | ||
844 | /* | |
845 | * Write QoS parameters from the ac parameters. | |
846 | */ | |
847 | static int ieee80211_qos_convert_ac_to_parameters(struct | |
848 | ieee80211_qos_parameter_info | |
849 | *param_elm, struct | |
850 | ieee80211_qos_parameters | |
851 | *qos_param) | |
852 | { | |
853 | int rc = 0; | |
854 | int i; | |
855 | struct ieee80211_qos_ac_parameter *ac_params; | |
856 | u32 txop; | |
857 | u8 cw_min; | |
858 | u8 cw_max; | |
859 | ||
860 | for (i = 0; i < QOS_QUEUE_NUM; i++) { | |
861 | ac_params = &(param_elm->ac_params_record[i]); | |
862 | ||
863 | qos_param->aifs[i] = (ac_params->aci_aifsn) & 0x0F; | |
864 | qos_param->aifs[i] -= (qos_param->aifs[i] < 2) ? 0 : 2; | |
865 | ||
866 | cw_min = ac_params->ecw_min_max & 0x0F; | |
867 | qos_param->cw_min[i] = (u16) ((1 << cw_min) - 1); | |
868 | ||
869 | cw_max = (ac_params->ecw_min_max & 0xF0) >> 4; | |
870 | qos_param->cw_max[i] = (u16) ((1 << cw_max) - 1); | |
871 | ||
872 | qos_param->flag[i] = | |
873 | (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00; | |
874 | ||
875 | txop = le16_to_cpu(ac_params->tx_op_limit) * 32; | |
876 | qos_param->tx_op_limit[i] = (u16) txop; | |
877 | } | |
878 | return rc; | |
879 | } | |
880 | ||
881 | /* | |
882 | * we have a generic data element which it may contain QoS information or | |
883 | * parameters element. check the information element length to decide | |
884 | * which type to read | |
885 | */ | |
886 | static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element | |
887 | *info_element, | |
888 | struct ieee80211_network *network) | |
889 | { | |
890 | int rc = 0; | |
891 | struct ieee80211_qos_parameters *qos_param = NULL; | |
892 | struct ieee80211_qos_information_element qos_info_element; | |
893 | ||
894 | rc = ieee80211_read_qos_info_element(&qos_info_element, info_element); | |
895 | ||
896 | if (rc == 0) { | |
897 | network->qos_data.param_count = qos_info_element.ac_info & 0x0F; | |
898 | network->flags |= NETWORK_HAS_QOS_INFORMATION; | |
899 | } else { | |
900 | struct ieee80211_qos_parameter_info param_element; | |
901 | ||
902 | rc = ieee80211_read_qos_param_element(¶m_element, | |
903 | info_element); | |
904 | if (rc == 0) { | |
905 | qos_param = &(network->qos_data.parameters); | |
906 | ieee80211_qos_convert_ac_to_parameters(¶m_element, | |
907 | qos_param); | |
908 | network->flags |= NETWORK_HAS_QOS_PARAMETERS; | |
909 | network->qos_data.param_count = | |
910 | param_element.info_element.ac_info & 0x0F; | |
911 | } | |
912 | } | |
913 | ||
914 | if (rc == 0) { | |
915 | IEEE80211_DEBUG_QOS("QoS is supported\n"); | |
916 | network->qos_data.supported = 1; | |
917 | } | |
918 | return rc; | |
919 | } | |
920 | ||
ff0037b2 JK |
921 | static int ieee80211_parse_info_param(struct ieee80211_info_element |
922 | *info_element, u16 length, | |
923 | struct ieee80211_network *network) | |
b453872c | 924 | { |
ff9e00f1 | 925 | u8 i; |
b453872c JG |
926 | #ifdef CONFIG_IEEE80211_DEBUG |
927 | char rates_str[64]; | |
928 | char *p; | |
929 | #endif | |
b453872c | 930 | |
ff9e00f1 ID |
931 | while (length >= sizeof(*info_element)) { |
932 | if (sizeof(*info_element) + info_element->len > length) { | |
933 | IEEE80211_DEBUG_MGMT("Info elem: parse failed: " | |
ff0037b2 JK |
934 | "info_element->len + 2 > left : " |
935 | "info_element->len+2=%zd left=%d, id=%d.\n", | |
936 | info_element->len + | |
937 | sizeof(*info_element), | |
938 | length, info_element->id); | |
b453872c | 939 | return 1; |
0edd5b44 | 940 | } |
b453872c JG |
941 | |
942 | switch (info_element->id) { | |
943 | case MFIE_TYPE_SSID: | |
944 | if (ieee80211_is_empty_essid(info_element->data, | |
945 | info_element->len)) { | |
946 | network->flags |= NETWORK_EMPTY_ESSID; | |
947 | break; | |
948 | } | |
949 | ||
950 | network->ssid_len = min(info_element->len, | |
0edd5b44 JG |
951 | (u8) IW_ESSID_MAX_SIZE); |
952 | memcpy(network->ssid, info_element->data, | |
953 | network->ssid_len); | |
954 | if (network->ssid_len < IW_ESSID_MAX_SIZE) | |
955 | memset(network->ssid + network->ssid_len, 0, | |
b453872c JG |
956 | IW_ESSID_MAX_SIZE - network->ssid_len); |
957 | ||
ff9e00f1 | 958 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n", |
ff0037b2 | 959 | network->ssid, network->ssid_len); |
b453872c JG |
960 | break; |
961 | ||
962 | case MFIE_TYPE_RATES: | |
963 | #ifdef CONFIG_IEEE80211_DEBUG | |
964 | p = rates_str; | |
965 | #endif | |
9e8571af JK |
966 | network->rates_len = min(info_element->len, |
967 | MAX_RATES_LENGTH); | |
b453872c JG |
968 | for (i = 0; i < network->rates_len; i++) { |
969 | network->rates[i] = info_element->data[i]; | |
970 | #ifdef CONFIG_IEEE80211_DEBUG | |
9e8571af JK |
971 | p += snprintf(p, sizeof(rates_str) - |
972 | (p - rates_str), "%02X ", | |
973 | network->rates[i]); | |
b453872c | 974 | #endif |
0edd5b44 JG |
975 | if (ieee80211_is_ofdm_rate |
976 | (info_element->data[i])) { | |
b453872c JG |
977 | network->flags |= NETWORK_HAS_OFDM; |
978 | if (info_element->data[i] & | |
979 | IEEE80211_BASIC_RATE_MASK) | |
980 | network->flags &= | |
0edd5b44 | 981 | ~NETWORK_HAS_CCK; |
b453872c JG |
982 | } |
983 | } | |
984 | ||
ff9e00f1 | 985 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n", |
b453872c JG |
986 | rates_str, network->rates_len); |
987 | break; | |
988 | ||
989 | case MFIE_TYPE_RATES_EX: | |
990 | #ifdef CONFIG_IEEE80211_DEBUG | |
991 | p = rates_str; | |
992 | #endif | |
9e8571af JK |
993 | network->rates_ex_len = min(info_element->len, |
994 | MAX_RATES_EX_LENGTH); | |
b453872c JG |
995 | for (i = 0; i < network->rates_ex_len; i++) { |
996 | network->rates_ex[i] = info_element->data[i]; | |
997 | #ifdef CONFIG_IEEE80211_DEBUG | |
9e8571af JK |
998 | p += snprintf(p, sizeof(rates_str) - |
999 | (p - rates_str), "%02X ", | |
1000 | network->rates[i]); | |
b453872c | 1001 | #endif |
0edd5b44 JG |
1002 | if (ieee80211_is_ofdm_rate |
1003 | (info_element->data[i])) { | |
b453872c JG |
1004 | network->flags |= NETWORK_HAS_OFDM; |
1005 | if (info_element->data[i] & | |
1006 | IEEE80211_BASIC_RATE_MASK) | |
1007 | network->flags &= | |
0edd5b44 | 1008 | ~NETWORK_HAS_CCK; |
b453872c JG |
1009 | } |
1010 | } | |
1011 | ||
ff9e00f1 | 1012 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n", |
b453872c JG |
1013 | rates_str, network->rates_ex_len); |
1014 | break; | |
1015 | ||
1016 | case MFIE_TYPE_DS_SET: | |
ff9e00f1 | 1017 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n", |
b453872c | 1018 | info_element->data[0]); |
ff9e00f1 | 1019 | network->channel = info_element->data[0]; |
b453872c JG |
1020 | break; |
1021 | ||
0edd5b44 | 1022 | case MFIE_TYPE_FH_SET: |
ff9e00f1 | 1023 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n"); |
b453872c JG |
1024 | break; |
1025 | ||
1026 | case MFIE_TYPE_CF_SET: | |
ff9e00f1 | 1027 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n"); |
b453872c JG |
1028 | break; |
1029 | ||
1030 | case MFIE_TYPE_TIM: | |
ff9e00f1 | 1031 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_TIM: ignored\n"); |
b453872c JG |
1032 | break; |
1033 | ||
42c94e43 JK |
1034 | case MFIE_TYPE_ERP_INFO: |
1035 | network->erp_value = info_element->data[0]; | |
ff9e00f1 | 1036 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n", |
42c94e43 JK |
1037 | network->erp_value); |
1038 | break; | |
1039 | ||
b453872c | 1040 | case MFIE_TYPE_IBSS_SET: |
42c94e43 | 1041 | network->atim_window = info_element->data[0]; |
ff9e00f1 | 1042 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n", |
42c94e43 | 1043 | network->atim_window); |
b453872c JG |
1044 | break; |
1045 | ||
1046 | case MFIE_TYPE_CHALLENGE: | |
ff9e00f1 | 1047 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n"); |
b453872c JG |
1048 | break; |
1049 | ||
1050 | case MFIE_TYPE_GENERIC: | |
ff9e00f1 | 1051 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n", |
b453872c | 1052 | info_element->len); |
9e8571af JK |
1053 | if (!ieee80211_parse_qos_info_param_IE(info_element, |
1054 | network)) | |
1055 | break; | |
1056 | ||
0edd5b44 | 1057 | if (info_element->len >= 4 && |
b453872c JG |
1058 | info_element->data[0] == 0x00 && |
1059 | info_element->data[1] == 0x50 && | |
1060 | info_element->data[2] == 0xf2 && | |
1061 | info_element->data[3] == 0x01) { | |
1062 | network->wpa_ie_len = min(info_element->len + 2, | |
0edd5b44 | 1063 | MAX_WPA_IE_LEN); |
b453872c JG |
1064 | memcpy(network->wpa_ie, info_element, |
1065 | network->wpa_ie_len); | |
1066 | } | |
1067 | break; | |
1068 | ||
1069 | case MFIE_TYPE_RSN: | |
ff9e00f1 | 1070 | IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n", |
b453872c JG |
1071 | info_element->len); |
1072 | network->rsn_ie_len = min(info_element->len + 2, | |
0edd5b44 | 1073 | MAX_WPA_IE_LEN); |
b453872c JG |
1074 | memcpy(network->rsn_ie, info_element, |
1075 | network->rsn_ie_len); | |
1076 | break; | |
1077 | ||
9e8571af | 1078 | case MFIE_TYPE_QOS_PARAMETER: |
ff0037b2 JK |
1079 | printk(KERN_ERR |
1080 | "QoS Error need to parse QOS_PARAMETER IE\n"); | |
9e8571af JK |
1081 | break; |
1082 | ||
b453872c | 1083 | default: |
ff9e00f1 | 1084 | IEEE80211_DEBUG_MGMT("unsupported IE %d\n", |
ff0037b2 | 1085 | info_element->id); |
0edd5b44 JG |
1086 | break; |
1087 | } | |
b453872c | 1088 | |
ff9e00f1 | 1089 | length -= sizeof(*info_element) + info_element->len; |
ff0037b2 JK |
1090 | info_element = |
1091 | (struct ieee80211_info_element *)&info_element-> | |
1092 | data[info_element->len]; | |
0edd5b44 | 1093 | } |
b453872c | 1094 | |
ff9e00f1 ID |
1095 | return 0; |
1096 | } | |
1097 | ||
1098 | static int ieee80211_handle_assoc_resp(struct ieee80211_device *ieee, struct ieee80211_assoc_response | |
1099 | *frame, struct ieee80211_rx_stats *stats) | |
1100 | { | |
1101 | struct ieee80211_network network_resp; | |
1102 | struct ieee80211_network *network = &network_resp; | |
1103 | struct net_device *dev = ieee->dev; | |
1104 | ||
1105 | network->flags = 0; | |
1106 | network->qos_data.active = 0; | |
1107 | network->qos_data.supported = 0; | |
1108 | network->qos_data.param_count = 0; | |
1109 | network->qos_data.old_param_count = 0; | |
1110 | ||
1111 | //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF); | |
1112 | network->atim_window = le16_to_cpu(frame->aid); | |
1113 | network->listen_interval = le16_to_cpu(frame->status); | |
c1bda44a ID |
1114 | memcpy(network->bssid, frame->header.addr3, ETH_ALEN); |
1115 | network->capability = le16_to_cpu(frame->capability); | |
1116 | network->last_scanned = jiffies; | |
1117 | network->rates_len = network->rates_ex_len = 0; | |
1118 | network->last_associate = 0; | |
1119 | network->ssid_len = 0; | |
ff0037b2 JK |
1120 | network->erp_value = |
1121 | (network->capability & WLAN_CAPABILITY_IBSS) ? 0x3 : 0x0; | |
c1bda44a ID |
1122 | |
1123 | if (stats->freq == IEEE80211_52GHZ_BAND) { | |
1124 | /* for A band (No DS info) */ | |
1125 | network->channel = stats->received_channel; | |
1126 | } else | |
1127 | network->flags |= NETWORK_HAS_CCK; | |
1128 | ||
1129 | network->wpa_ie_len = 0; | |
1130 | network->rsn_ie_len = 0; | |
ff9e00f1 | 1131 | |
ff0037b2 JK |
1132 | if (ieee80211_parse_info_param |
1133 | (frame->info_element, stats->len - sizeof(*frame), network)) | |
ff9e00f1 ID |
1134 | return 1; |
1135 | ||
c1bda44a ID |
1136 | network->mode = 0; |
1137 | if (stats->freq == IEEE80211_52GHZ_BAND) | |
1138 | network->mode = IEEE_A; | |
1139 | else { | |
1140 | if (network->flags & NETWORK_HAS_OFDM) | |
1141 | network->mode |= IEEE_G; | |
1142 | if (network->flags & NETWORK_HAS_CCK) | |
1143 | network->mode |= IEEE_B; | |
1144 | } | |
1145 | ||
1146 | if (ieee80211_is_empty_essid(network->ssid, network->ssid_len)) | |
1147 | network->flags |= NETWORK_EMPTY_ESSID; | |
1148 | ||
1149 | memcpy(&network->stats, stats, sizeof(network->stats)); | |
1150 | ||
ff9e00f1 ID |
1151 | if (ieee->handle_assoc_response != NULL) |
1152 | ieee->handle_assoc_response(dev, frame, network); | |
1153 | ||
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | /***************************************************/ | |
1158 | ||
858119e1 | 1159 | static int ieee80211_network_init(struct ieee80211_device *ieee, struct ieee80211_probe_response |
ff9e00f1 ID |
1160 | *beacon, |
1161 | struct ieee80211_network *network, | |
1162 | struct ieee80211_rx_stats *stats) | |
1163 | { | |
1164 | network->qos_data.active = 0; | |
1165 | network->qos_data.supported = 0; | |
1166 | network->qos_data.param_count = 0; | |
c1bda44a | 1167 | network->qos_data.old_param_count = 0; |
ff9e00f1 ID |
1168 | |
1169 | /* Pull out fixed field data */ | |
1170 | memcpy(network->bssid, beacon->header.addr3, ETH_ALEN); | |
1171 | network->capability = le16_to_cpu(beacon->capability); | |
1172 | network->last_scanned = jiffies; | |
1173 | network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]); | |
1174 | network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]); | |
1175 | network->beacon_interval = le16_to_cpu(beacon->beacon_interval); | |
1176 | /* Where to pull this? beacon->listen_interval; */ | |
1177 | network->listen_interval = 0x0A; | |
1178 | network->rates_len = network->rates_ex_len = 0; | |
1179 | network->last_associate = 0; | |
1180 | network->ssid_len = 0; | |
1181 | network->flags = 0; | |
1182 | network->atim_window = 0; | |
1183 | network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ? | |
1184 | 0x3 : 0x0; | |
1185 | ||
1186 | if (stats->freq == IEEE80211_52GHZ_BAND) { | |
1187 | /* for A band (No DS info) */ | |
1188 | network->channel = stats->received_channel; | |
1189 | } else | |
1190 | network->flags |= NETWORK_HAS_CCK; | |
1191 | ||
1192 | network->wpa_ie_len = 0; | |
1193 | network->rsn_ie_len = 0; | |
1194 | ||
ff0037b2 JK |
1195 | if (ieee80211_parse_info_param |
1196 | (beacon->info_element, stats->len - sizeof(*beacon), network)) | |
ff9e00f1 ID |
1197 | return 1; |
1198 | ||
b453872c JG |
1199 | network->mode = 0; |
1200 | if (stats->freq == IEEE80211_52GHZ_BAND) | |
1201 | network->mode = IEEE_A; | |
1202 | else { | |
1203 | if (network->flags & NETWORK_HAS_OFDM) | |
1204 | network->mode |= IEEE_G; | |
1205 | if (network->flags & NETWORK_HAS_CCK) | |
1206 | network->mode |= IEEE_B; | |
1207 | } | |
1208 | ||
1209 | if (network->mode == 0) { | |
1210 | IEEE80211_DEBUG_SCAN("Filtered out '%s (" MAC_FMT ")' " | |
1211 | "network.\n", | |
1212 | escape_essid(network->ssid, | |
1213 | network->ssid_len), | |
1214 | MAC_ARG(network->bssid)); | |
1215 | return 1; | |
1216 | } | |
1217 | ||
1218 | if (ieee80211_is_empty_essid(network->ssid, network->ssid_len)) | |
1219 | network->flags |= NETWORK_EMPTY_ESSID; | |
1220 | ||
1221 | memcpy(&network->stats, stats, sizeof(network->stats)); | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static inline int is_same_network(struct ieee80211_network *src, | |
1227 | struct ieee80211_network *dst) | |
1228 | { | |
1229 | /* A network is only a duplicate if the channel, BSSID, and ESSID | |
1230 | * all match. We treat all <hidden> with the same BSSID and channel | |
1231 | * as one network */ | |
1232 | return ((src->ssid_len == dst->ssid_len) && | |
1233 | (src->channel == dst->channel) && | |
d3f4a687 | 1234 | !compare_ether_addr(src->bssid, dst->bssid) && |
b453872c JG |
1235 | !memcmp(src->ssid, dst->ssid, src->ssid_len)); |
1236 | } | |
1237 | ||
858119e1 | 1238 | static void update_network(struct ieee80211_network *dst, |
b453872c JG |
1239 | struct ieee80211_network *src) |
1240 | { | |
9e8571af JK |
1241 | int qos_active; |
1242 | u8 old_param; | |
1243 | ||
b453872c JG |
1244 | memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats)); |
1245 | dst->capability = src->capability; | |
1246 | memcpy(dst->rates, src->rates, src->rates_len); | |
1247 | dst->rates_len = src->rates_len; | |
1248 | memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); | |
1249 | dst->rates_ex_len = src->rates_ex_len; | |
1250 | ||
1251 | dst->mode = src->mode; | |
1252 | dst->flags = src->flags; | |
1253 | dst->time_stamp[0] = src->time_stamp[0]; | |
1254 | dst->time_stamp[1] = src->time_stamp[1]; | |
1255 | ||
1256 | dst->beacon_interval = src->beacon_interval; | |
1257 | dst->listen_interval = src->listen_interval; | |
1258 | dst->atim_window = src->atim_window; | |
42c94e43 | 1259 | dst->erp_value = src->erp_value; |
b453872c JG |
1260 | |
1261 | memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len); | |
1262 | dst->wpa_ie_len = src->wpa_ie_len; | |
1263 | memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len); | |
1264 | dst->rsn_ie_len = src->rsn_ie_len; | |
1265 | ||
1266 | dst->last_scanned = jiffies; | |
9e8571af JK |
1267 | qos_active = src->qos_data.active; |
1268 | old_param = dst->qos_data.old_param_count; | |
1269 | if (dst->flags & NETWORK_HAS_QOS_MASK) | |
1270 | memcpy(&dst->qos_data, &src->qos_data, | |
1271 | sizeof(struct ieee80211_qos_data)); | |
1272 | else { | |
1273 | dst->qos_data.supported = src->qos_data.supported; | |
1274 | dst->qos_data.param_count = src->qos_data.param_count; | |
1275 | } | |
1276 | ||
1277 | if (dst->qos_data.supported == 1) { | |
1278 | if (dst->ssid_len) | |
1279 | IEEE80211_DEBUG_QOS | |
1280 | ("QoS the network %s is QoS supported\n", | |
1281 | dst->ssid); | |
1282 | else | |
1283 | IEEE80211_DEBUG_QOS | |
1284 | ("QoS the network is QoS supported\n"); | |
1285 | } | |
1286 | dst->qos_data.active = qos_active; | |
1287 | dst->qos_data.old_param_count = old_param; | |
1288 | ||
b453872c JG |
1289 | /* dst->last_associate is not overwritten */ |
1290 | } | |
1291 | ||
3f552bbf JK |
1292 | static inline int is_beacon(int fc) |
1293 | { | |
1294 | return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON); | |
1295 | } | |
1296 | ||
858119e1 | 1297 | static void ieee80211_process_probe_response(struct ieee80211_device |
74079fdc | 1298 | *ieee, struct |
0edd5b44 | 1299 | ieee80211_probe_response |
74079fdc | 1300 | *beacon, struct ieee80211_rx_stats |
0edd5b44 | 1301 | *stats) |
b453872c | 1302 | { |
3f552bbf | 1303 | struct net_device *dev = ieee->dev; |
b453872c JG |
1304 | struct ieee80211_network network; |
1305 | struct ieee80211_network *target; | |
1306 | struct ieee80211_network *oldest = NULL; | |
1307 | #ifdef CONFIG_IEEE80211_DEBUG | |
68e4e036 | 1308 | struct ieee80211_info_element *info_element = beacon->info_element; |
b453872c JG |
1309 | #endif |
1310 | unsigned long flags; | |
1311 | ||
0edd5b44 JG |
1312 | IEEE80211_DEBUG_SCAN("'%s' (" MAC_FMT |
1313 | "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", | |
1314 | escape_essid(info_element->data, | |
1315 | info_element->len), | |
1316 | MAC_ARG(beacon->header.addr3), | |
1317 | (beacon->capability & (1 << 0xf)) ? '1' : '0', | |
1318 | (beacon->capability & (1 << 0xe)) ? '1' : '0', | |
1319 | (beacon->capability & (1 << 0xd)) ? '1' : '0', | |
1320 | (beacon->capability & (1 << 0xc)) ? '1' : '0', | |
1321 | (beacon->capability & (1 << 0xb)) ? '1' : '0', | |
1322 | (beacon->capability & (1 << 0xa)) ? '1' : '0', | |
1323 | (beacon->capability & (1 << 0x9)) ? '1' : '0', | |
1324 | (beacon->capability & (1 << 0x8)) ? '1' : '0', | |
1325 | (beacon->capability & (1 << 0x7)) ? '1' : '0', | |
1326 | (beacon->capability & (1 << 0x6)) ? '1' : '0', | |
1327 | (beacon->capability & (1 << 0x5)) ? '1' : '0', | |
1328 | (beacon->capability & (1 << 0x4)) ? '1' : '0', | |
1329 | (beacon->capability & (1 << 0x3)) ? '1' : '0', | |
1330 | (beacon->capability & (1 << 0x2)) ? '1' : '0', | |
1331 | (beacon->capability & (1 << 0x1)) ? '1' : '0', | |
1332 | (beacon->capability & (1 << 0x0)) ? '1' : '0'); | |
b453872c JG |
1333 | |
1334 | if (ieee80211_network_init(ieee, beacon, &network, stats)) { | |
1335 | IEEE80211_DEBUG_SCAN("Dropped '%s' (" MAC_FMT ") via %s.\n", | |
1336 | escape_essid(info_element->data, | |
1337 | info_element->len), | |
1338 | MAC_ARG(beacon->header.addr3), | |
3f552bbf JK |
1339 | is_beacon(le16_to_cpu |
1340 | (beacon->header. | |
1341 | frame_ctl)) ? | |
1342 | "BEACON" : "PROBE RESPONSE"); | |
b453872c JG |
1343 | return; |
1344 | } | |
1345 | ||
1346 | /* The network parsed correctly -- so now we scan our known networks | |
1347 | * to see if we can find it in our list. | |
1348 | * | |
1349 | * NOTE: This search is definitely not optimized. Once its doing | |
1350 | * the "right thing" we'll optimize it for efficiency if | |
1351 | * necessary */ | |
1352 | ||
1353 | /* Search for this entry in the list and update it if it is | |
1354 | * already there. */ | |
1355 | ||
1356 | spin_lock_irqsave(&ieee->lock, flags); | |
1357 | ||
1358 | list_for_each_entry(target, &ieee->network_list, list) { | |
1359 | if (is_same_network(target, &network)) | |
1360 | break; | |
1361 | ||
1362 | if ((oldest == NULL) || | |
1363 | (target->last_scanned < oldest->last_scanned)) | |
1364 | oldest = target; | |
1365 | } | |
1366 | ||
1367 | /* If we didn't find a match, then get a new network slot to initialize | |
1368 | * with this beacon's information */ | |
1369 | if (&target->list == &ieee->network_list) { | |
1370 | if (list_empty(&ieee->network_free_list)) { | |
1371 | /* If there are no more slots, expire the oldest */ | |
1372 | list_del(&oldest->list); | |
1373 | target = oldest; | |
1374 | IEEE80211_DEBUG_SCAN("Expired '%s' (" MAC_FMT ") from " | |
1375 | "network list.\n", | |
1376 | escape_essid(target->ssid, | |
1377 | target->ssid_len), | |
1378 | MAC_ARG(target->bssid)); | |
1379 | } else { | |
1380 | /* Otherwise just pull from the free list */ | |
1381 | target = list_entry(ieee->network_free_list.next, | |
1382 | struct ieee80211_network, list); | |
1383 | list_del(ieee->network_free_list.next); | |
1384 | } | |
1385 | ||
b453872c JG |
1386 | #ifdef CONFIG_IEEE80211_DEBUG |
1387 | IEEE80211_DEBUG_SCAN("Adding '%s' (" MAC_FMT ") via %s.\n", | |
1388 | escape_essid(network.ssid, | |
1389 | network.ssid_len), | |
1390 | MAC_ARG(network.bssid), | |
3f552bbf JK |
1391 | is_beacon(le16_to_cpu |
1392 | (beacon->header. | |
1393 | frame_ctl)) ? | |
1394 | "BEACON" : "PROBE RESPONSE"); | |
b453872c JG |
1395 | #endif |
1396 | memcpy(target, &network, sizeof(*target)); | |
1397 | list_add_tail(&target->list, &ieee->network_list); | |
1398 | } else { | |
1399 | IEEE80211_DEBUG_SCAN("Updating '%s' (" MAC_FMT ") via %s.\n", | |
1400 | escape_essid(target->ssid, | |
1401 | target->ssid_len), | |
1402 | MAC_ARG(target->bssid), | |
3f552bbf JK |
1403 | is_beacon(le16_to_cpu |
1404 | (beacon->header. | |
1405 | frame_ctl)) ? | |
1406 | "BEACON" : "PROBE RESPONSE"); | |
b453872c JG |
1407 | update_network(target, &network); |
1408 | } | |
1409 | ||
1410 | spin_unlock_irqrestore(&ieee->lock, flags); | |
3f552bbf JK |
1411 | |
1412 | if (is_beacon(le16_to_cpu(beacon->header.frame_ctl))) { | |
1413 | if (ieee->handle_beacon != NULL) | |
1414 | ieee->handle_beacon(dev, beacon, &network); | |
1415 | } else { | |
1416 | if (ieee->handle_probe_response != NULL) | |
1417 | ieee->handle_probe_response(dev, beacon, &network); | |
1418 | } | |
b453872c JG |
1419 | } |
1420 | ||
1421 | void ieee80211_rx_mgt(struct ieee80211_device *ieee, | |
ee34af37 | 1422 | struct ieee80211_hdr_4addr *header, |
b453872c JG |
1423 | struct ieee80211_rx_stats *stats) |
1424 | { | |
fd27817c | 1425 | switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) { |
b453872c JG |
1426 | case IEEE80211_STYPE_ASSOC_RESP: |
1427 | IEEE80211_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n", | |
fd27817c JK |
1428 | WLAN_FC_GET_STYPE(le16_to_cpu |
1429 | (header->frame_ctl))); | |
9e8571af JK |
1430 | ieee80211_handle_assoc_resp(ieee, |
1431 | (struct ieee80211_assoc_response *) | |
1432 | header, stats); | |
b453872c JG |
1433 | break; |
1434 | ||
1435 | case IEEE80211_STYPE_REASSOC_RESP: | |
1436 | IEEE80211_DEBUG_MGMT("received REASSOCIATION RESPONSE (%d)\n", | |
fd27817c JK |
1437 | WLAN_FC_GET_STYPE(le16_to_cpu |
1438 | (header->frame_ctl))); | |
b453872c JG |
1439 | break; |
1440 | ||
42c94e43 JK |
1441 | case IEEE80211_STYPE_PROBE_REQ: |
1442 | IEEE80211_DEBUG_MGMT("recieved auth (%d)\n", | |
1443 | WLAN_FC_GET_STYPE(le16_to_cpu | |
1444 | (header->frame_ctl))); | |
1445 | ||
1446 | if (ieee->handle_probe_request != NULL) | |
1447 | ieee->handle_probe_request(ieee->dev, | |
1448 | (struct | |
1449 | ieee80211_probe_request *) | |
1450 | header, stats); | |
1451 | break; | |
1452 | ||
b453872c JG |
1453 | case IEEE80211_STYPE_PROBE_RESP: |
1454 | IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", | |
fd27817c JK |
1455 | WLAN_FC_GET_STYPE(le16_to_cpu |
1456 | (header->frame_ctl))); | |
b453872c | 1457 | IEEE80211_DEBUG_SCAN("Probe response\n"); |
0edd5b44 JG |
1458 | ieee80211_process_probe_response(ieee, |
1459 | (struct | |
1460 | ieee80211_probe_response *) | |
1461 | header, stats); | |
b453872c JG |
1462 | break; |
1463 | ||
1464 | case IEEE80211_STYPE_BEACON: | |
1465 | IEEE80211_DEBUG_MGMT("received BEACON (%d)\n", | |
fd27817c JK |
1466 | WLAN_FC_GET_STYPE(le16_to_cpu |
1467 | (header->frame_ctl))); | |
b453872c | 1468 | IEEE80211_DEBUG_SCAN("Beacon\n"); |
0edd5b44 JG |
1469 | ieee80211_process_probe_response(ieee, |
1470 | (struct | |
1471 | ieee80211_probe_response *) | |
1472 | header, stats); | |
b453872c | 1473 | break; |
3f552bbf JK |
1474 | case IEEE80211_STYPE_AUTH: |
1475 | ||
1476 | IEEE80211_DEBUG_MGMT("recieved auth (%d)\n", | |
1477 | WLAN_FC_GET_STYPE(le16_to_cpu | |
1478 | (header->frame_ctl))); | |
1479 | ||
1480 | if (ieee->handle_auth != NULL) | |
1481 | ieee->handle_auth(ieee->dev, | |
1482 | (struct ieee80211_auth *)header); | |
1483 | break; | |
1484 | ||
1485 | case IEEE80211_STYPE_DISASSOC: | |
1486 | if (ieee->handle_disassoc != NULL) | |
1487 | ieee->handle_disassoc(ieee->dev, | |
1488 | (struct ieee80211_disassoc *) | |
1489 | header); | |
1490 | break; | |
b453872c | 1491 | |
31b59eae JK |
1492 | case IEEE80211_STYPE_DEAUTH: |
1493 | printk("DEAUTH from AP\n"); | |
1494 | if (ieee->handle_deauth != NULL) | |
1495 | ieee->handle_deauth(ieee->dev, (struct ieee80211_auth *) | |
1496 | header); | |
1497 | break; | |
b453872c JG |
1498 | default: |
1499 | IEEE80211_DEBUG_MGMT("received UNKNOWN (%d)\n", | |
fd27817c JK |
1500 | WLAN_FC_GET_STYPE(le16_to_cpu |
1501 | (header->frame_ctl))); | |
b453872c JG |
1502 | IEEE80211_WARNING("%s: Unknown management packet: %d\n", |
1503 | ieee->dev->name, | |
fd27817c JK |
1504 | WLAN_FC_GET_STYPE(le16_to_cpu |
1505 | (header->frame_ctl))); | |
b453872c JG |
1506 | break; |
1507 | } | |
1508 | } | |
1509 | ||
b453872c JG |
1510 | EXPORT_SYMBOL(ieee80211_rx_mgt); |
1511 | EXPORT_SYMBOL(ieee80211_rx); |