Commit | Line | Data |
---|---|---|
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 | |
85d32e7b JM |
6 | * <j@w1.fi> |
7 | * Copyright (c) 2002-2003, Jouni Malinen <j@w1.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> | |
b453872c JG |
17 | #include <linux/errno.h> |
18 | #include <linux/if_arp.h> | |
19 | #include <linux/in6.h> | |
5a0e3ad6 | 20 | #include <linux/gfp.h> |
b453872c JG |
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> | |
b453872c JG |
28 | #include <linux/tcp.h> |
29 | #include <linux/types.h> | |
b453872c JG |
30 | #include <linux/wireless.h> |
31 | #include <linux/etherdevice.h> | |
32 | #include <asm/uaccess.h> | |
33 | #include <linux/ctype.h> | |
34 | ||
7e272fcf | 35 | #include <net/lib80211.h> |
f3734ee6 | 36 | |
b0a4e7d8 | 37 | #include "libipw.h" |
b453872c | 38 | |
b0a4e7d8 | 39 | static void libipw_monitor_rx(struct libipw_device *ieee, |
b453872c | 40 | struct sk_buff *skb, |
b0a4e7d8 | 41 | struct libipw_rx_stats *rx_stats) |
b453872c JG |
42 | { |
43 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
72118015 | 44 | u16 fc = le16_to_cpu(hdr->frame_control); |
b453872c JG |
45 | |
46 | skb->dev = ieee->dev; | |
459a98ed | 47 | skb_reset_mac_header(skb); |
b0a4e7d8 | 48 | skb_pull(skb, libipw_get_hdrlen(fc)); |
b453872c | 49 | skb->pkt_type = PACKET_OTHERHOST; |
4e39430a | 50 | skb->protocol = htons(ETH_P_80211_RAW); |
b453872c JG |
51 | memset(skb->cb, 0, sizeof(skb->cb)); |
52 | netif_rx(skb); | |
53 | } | |
54 | ||
b453872c | 55 | /* Called only as a tasklet (software IRQ) */ |
b0a4e7d8 JL |
56 | static struct libipw_frag_entry *libipw_frag_cache_find(struct |
57 | libipw_device | |
0edd5b44 JG |
58 | *ieee, |
59 | unsigned int seq, | |
60 | unsigned int frag, | |
61 | u8 * src, | |
62 | u8 * dst) | |
b453872c | 63 | { |
b0a4e7d8 | 64 | struct libipw_frag_entry *entry; |
b453872c JG |
65 | int i; |
66 | ||
b0a4e7d8 | 67 | for (i = 0; i < LIBIPW_FRAG_CACHE_LEN; i++) { |
b453872c JG |
68 | entry = &ieee->frag_cache[i]; |
69 | if (entry->skb != NULL && | |
70 | time_after(jiffies, entry->first_frag_time + 2 * HZ)) { | |
b0a4e7d8 | 71 | LIBIPW_DEBUG_FRAG("expiring fragment cache entry " |
0edd5b44 JG |
72 | "seq=%u last_frag=%u\n", |
73 | entry->seq, entry->last_frag); | |
b453872c JG |
74 | dev_kfree_skb_any(entry->skb); |
75 | entry->skb = NULL; | |
76 | } | |
77 | ||
78 | if (entry->skb != NULL && entry->seq == seq && | |
79 | (entry->last_frag + 1 == frag || frag == -1) && | |
2e42e474 JP |
80 | ether_addr_equal(entry->src_addr, src) && |
81 | ether_addr_equal(entry->dst_addr, dst)) | |
b453872c JG |
82 | return entry; |
83 | } | |
84 | ||
85 | return NULL; | |
86 | } | |
87 | ||
88 | /* Called only as a tasklet (software IRQ) */ | |
b0a4e7d8 JL |
89 | static struct sk_buff *libipw_frag_cache_get(struct libipw_device *ieee, |
90 | struct libipw_hdr_4addr *hdr) | |
b453872c JG |
91 | { |
92 | struct sk_buff *skb = NULL; | |
93 | u16 sc; | |
94 | unsigned int frag, seq; | |
b0a4e7d8 | 95 | struct libipw_frag_entry *entry; |
b453872c JG |
96 | |
97 | sc = le16_to_cpu(hdr->seq_ctl); | |
98 | frag = WLAN_GET_SEQ_FRAG(sc); | |
99 | seq = WLAN_GET_SEQ_SEQ(sc); | |
100 | ||
101 | if (frag == 0) { | |
102 | /* Reserve enough space to fit maximum frame length */ | |
103 | skb = dev_alloc_skb(ieee->dev->mtu + | |
b0a4e7d8 | 104 | sizeof(struct libipw_hdr_4addr) + |
0edd5b44 JG |
105 | 8 /* LLC */ + |
106 | 2 /* alignment */ + | |
107 | 8 /* WEP */ + ETH_ALEN /* WDS */ ); | |
b453872c JG |
108 | if (skb == NULL) |
109 | return NULL; | |
110 | ||
111 | entry = &ieee->frag_cache[ieee->frag_next_idx]; | |
112 | ieee->frag_next_idx++; | |
b0a4e7d8 | 113 | if (ieee->frag_next_idx >= LIBIPW_FRAG_CACHE_LEN) |
b453872c JG |
114 | ieee->frag_next_idx = 0; |
115 | ||
116 | if (entry->skb != NULL) | |
117 | dev_kfree_skb_any(entry->skb); | |
118 | ||
119 | entry->first_frag_time = jiffies; | |
120 | entry->seq = seq; | |
121 | entry->last_frag = frag; | |
122 | entry->skb = skb; | |
123 | memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); | |
124 | memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); | |
125 | } else { | |
126 | /* received a fragment of a frame for which the head fragment | |
127 | * should have already been received */ | |
b0a4e7d8 | 128 | entry = libipw_frag_cache_find(ieee, seq, frag, hdr->addr2, |
b453872c JG |
129 | hdr->addr1); |
130 | if (entry != NULL) { | |
131 | entry->last_frag = frag; | |
132 | skb = entry->skb; | |
133 | } | |
134 | } | |
135 | ||
136 | return skb; | |
137 | } | |
138 | ||
b453872c | 139 | /* Called only as a tasklet (software IRQ) */ |
b0a4e7d8 JL |
140 | static int libipw_frag_cache_invalidate(struct libipw_device *ieee, |
141 | struct libipw_hdr_4addr *hdr) | |
b453872c JG |
142 | { |
143 | u16 sc; | |
144 | unsigned int seq; | |
b0a4e7d8 | 145 | struct libipw_frag_entry *entry; |
b453872c JG |
146 | |
147 | sc = le16_to_cpu(hdr->seq_ctl); | |
148 | seq = WLAN_GET_SEQ_SEQ(sc); | |
149 | ||
b0a4e7d8 | 150 | entry = libipw_frag_cache_find(ieee, seq, -1, hdr->addr2, |
b453872c JG |
151 | hdr->addr1); |
152 | ||
153 | if (entry == NULL) { | |
b0a4e7d8 | 154 | LIBIPW_DEBUG_FRAG("could not invalidate fragment cache " |
0edd5b44 | 155 | "entry (seq=%u)\n", seq); |
b453872c JG |
156 | return -1; |
157 | } | |
158 | ||
159 | entry->skb = NULL; | |
160 | return 0; | |
161 | } | |
162 | ||
b453872c | 163 | #ifdef NOT_YET |
b0a4e7d8 | 164 | /* libipw_rx_frame_mgtmt |
b453872c JG |
165 | * |
166 | * Responsible for handling management control frames | |
167 | * | |
b0a4e7d8 | 168 | * Called by libipw_rx */ |
858119e1 | 169 | static int |
b0a4e7d8 JL |
170 | libipw_rx_frame_mgmt(struct libipw_device *ieee, struct sk_buff *skb, |
171 | struct libipw_rx_stats *rx_stats, u16 type, | |
b453872c JG |
172 | u16 stype) |
173 | { | |
174 | if (ieee->iw_mode == IW_MODE_MASTER) { | |
5718b134 | 175 | printk(KERN_DEBUG "%s: Master mode not yet supported.\n", |
b453872c JG |
176 | ieee->dev->name); |
177 | return 0; | |
178 | /* | |
b0a4e7d8 | 179 | hostap_update_sta_ps(ieee, (struct hostap_libipw_hdr_4addr *) |
b453872c JG |
180 | skb->data);*/ |
181 | } | |
182 | ||
183 | if (ieee->hostapd && type == WLAN_FC_TYPE_MGMT) { | |
184 | if (stype == WLAN_FC_STYPE_BEACON && | |
185 | ieee->iw_mode == IW_MODE_MASTER) { | |
186 | struct sk_buff *skb2; | |
187 | /* Process beacon frames also in kernel driver to | |
188 | * update STA(AP) table statistics */ | |
189 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
190 | if (skb2) | |
191 | hostap_rx(skb2->dev, skb2, rx_stats); | |
192 | } | |
193 | ||
194 | /* send management frames to the user space daemon for | |
195 | * processing */ | |
196 | ieee->apdevstats.rx_packets++; | |
197 | ieee->apdevstats.rx_bytes += skb->len; | |
198 | prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT); | |
199 | return 0; | |
200 | } | |
201 | ||
0edd5b44 | 202 | if (ieee->iw_mode == IW_MODE_MASTER) { |
b453872c JG |
203 | if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { |
204 | printk(KERN_DEBUG "%s: unknown management frame " | |
205 | "(type=0x%02x, stype=0x%02x) dropped\n", | |
206 | skb->dev->name, type, stype); | |
207 | return -1; | |
208 | } | |
209 | ||
210 | hostap_rx(skb->dev, skb, rx_stats); | |
211 | return 0; | |
212 | } | |
213 | ||
214 | printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame " | |
215 | "received in non-Host AP mode\n", skb->dev->name); | |
216 | return -1; | |
217 | } | |
218 | #endif | |
219 | ||
b453872c JG |
220 | /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ |
221 | /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ | |
b0a4e7d8 JL |
222 | static unsigned char libipw_rfc1042_header[] = |
223 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
0edd5b44 | 224 | |
b453872c | 225 | /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ |
b0a4e7d8 | 226 | static unsigned char libipw_bridge_tunnel_header[] = |
0edd5b44 | 227 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; |
b453872c JG |
228 | /* No encapsulation header if EtherType < 0x600 (=length) */ |
229 | ||
b0a4e7d8 JL |
230 | /* Called by libipw_rx_frame_decrypt */ |
231 | static int libipw_is_eapol_frame(struct libipw_device *ieee, | |
b453872c JG |
232 | struct sk_buff *skb) |
233 | { | |
234 | struct net_device *dev = ieee->dev; | |
235 | u16 fc, ethertype; | |
b0a4e7d8 | 236 | struct libipw_hdr_3addr *hdr; |
b453872c JG |
237 | u8 *pos; |
238 | ||
239 | if (skb->len < 24) | |
240 | return 0; | |
241 | ||
b0a4e7d8 | 242 | hdr = (struct libipw_hdr_3addr *)skb->data; |
b453872c JG |
243 | fc = le16_to_cpu(hdr->frame_ctl); |
244 | ||
245 | /* check that the frame is unicast frame to us */ | |
246 | if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
247 | IEEE80211_FCTL_TODS && | |
2e42e474 JP |
248 | ether_addr_equal(hdr->addr1, dev->dev_addr) && |
249 | ether_addr_equal(hdr->addr3, dev->dev_addr)) { | |
b453872c JG |
250 | /* ToDS frame with own addr BSSID and DA */ |
251 | } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
252 | IEEE80211_FCTL_FROMDS && | |
2e42e474 | 253 | ether_addr_equal(hdr->addr1, dev->dev_addr)) { |
b453872c JG |
254 | /* FromDS frame with own addr as DA */ |
255 | } else | |
256 | return 0; | |
257 | ||
258 | if (skb->len < 24 + 8) | |
259 | return 0; | |
260 | ||
261 | /* check for port access entity Ethernet type */ | |
262 | pos = skb->data + 24; | |
263 | ethertype = (pos[6] << 8) | pos[7]; | |
264 | if (ethertype == ETH_P_PAE) | |
265 | return 1; | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
b0a4e7d8 | 270 | /* Called only as a tasklet (software IRQ), by libipw_rx */ |
858119e1 | 271 | static int |
b0a4e7d8 | 272 | libipw_rx_frame_decrypt(struct libipw_device *ieee, struct sk_buff *skb, |
274bfb8d | 273 | struct lib80211_crypt_data *crypt) |
b453872c | 274 | { |
b0a4e7d8 | 275 | struct libipw_hdr_3addr *hdr; |
b453872c JG |
276 | int res, hdrlen; |
277 | ||
278 | if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) | |
279 | return 0; | |
280 | ||
b0a4e7d8 JL |
281 | hdr = (struct libipw_hdr_3addr *)skb->data; |
282 | hdrlen = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); | |
b453872c | 283 | |
b453872c JG |
284 | atomic_inc(&crypt->refcnt); |
285 | res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); | |
286 | atomic_dec(&crypt->refcnt); | |
287 | if (res < 0) { | |
b0a4e7d8 | 288 | LIBIPW_DEBUG_DROP("decryption failed (SA=%pM) res=%d\n", |
e174961c | 289 | hdr->addr2, res); |
b453872c | 290 | if (res == -2) |
b0a4e7d8 | 291 | LIBIPW_DEBUG_DROP("Decryption failed ICV " |
b453872c JG |
292 | "mismatch (key %d)\n", |
293 | skb->data[hdrlen + 3] >> 6); | |
294 | ieee->ieee_stats.rx_discards_undecryptable++; | |
295 | return -1; | |
296 | } | |
297 | ||
298 | return res; | |
299 | } | |
300 | ||
b0a4e7d8 | 301 | /* Called only as a tasklet (software IRQ), by libipw_rx */ |
858119e1 | 302 | static int |
b0a4e7d8 | 303 | libipw_rx_frame_decrypt_msdu(struct libipw_device *ieee, |
0edd5b44 | 304 | struct sk_buff *skb, int keyidx, |
274bfb8d | 305 | struct lib80211_crypt_data *crypt) |
b453872c | 306 | { |
b0a4e7d8 | 307 | struct libipw_hdr_3addr *hdr; |
b453872c JG |
308 | int res, hdrlen; |
309 | ||
310 | if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) | |
311 | return 0; | |
312 | ||
b0a4e7d8 JL |
313 | hdr = (struct libipw_hdr_3addr *)skb->data; |
314 | hdrlen = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); | |
b453872c JG |
315 | |
316 | atomic_inc(&crypt->refcnt); | |
317 | res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); | |
318 | atomic_dec(&crypt->refcnt); | |
319 | if (res < 0) { | |
320 | printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" | |
e174961c | 321 | " (SA=%pM keyidx=%d)\n", ieee->dev->name, hdr->addr2, |
21f644f3 | 322 | keyidx); |
b453872c JG |
323 | return -1; |
324 | } | |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
b453872c JG |
329 | /* All received frames are sent to this function. @skb contains the frame in |
330 | * IEEE 802.11 format, i.e., in the format it was sent over air. | |
331 | * This function is called only as a tasklet (software IRQ). */ | |
b0a4e7d8 JL |
332 | int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, |
333 | struct libipw_rx_stats *rx_stats) | |
b453872c JG |
334 | { |
335 | struct net_device *dev = ieee->dev; | |
b0a4e7d8 | 336 | struct libipw_hdr_4addr *hdr; |
b453872c JG |
337 | size_t hdrlen; |
338 | u16 fc, type, stype, sc; | |
b453872c JG |
339 | unsigned int frag; |
340 | u8 *payload; | |
341 | u16 ethertype; | |
342 | #ifdef NOT_YET | |
343 | struct net_device *wds = NULL; | |
344 | struct sk_buff *skb2 = NULL; | |
345 | struct net_device *wds = NULL; | |
346 | int frame_authorized = 0; | |
347 | int from_assoc_ap = 0; | |
348 | void *sta = NULL; | |
349 | #endif | |
350 | u8 dst[ETH_ALEN]; | |
351 | u8 src[ETH_ALEN]; | |
274bfb8d | 352 | struct lib80211_crypt_data *crypt = NULL; |
b453872c | 353 | int keyidx = 0; |
b6daa25d | 354 | int can_be_decrypted = 0; |
b453872c | 355 | |
b0a4e7d8 | 356 | hdr = (struct libipw_hdr_4addr *)skb->data; |
b453872c | 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); | |
b0a4e7d8 | 367 | hdrlen = libipw_get_hdrlen(fc); |
b453872c | 368 | |
04045f98 JL |
369 | if (skb->len < hdrlen) { |
370 | printk(KERN_INFO "%s: invalid SKB length %d\n", | |
371 | dev->name, skb->len); | |
372 | goto rx_dropped; | |
373 | } | |
374 | ||
b453872c JG |
375 | /* Put this code here so that we avoid duplicating it in all |
376 | * Rx paths. - Jean II */ | |
8f7eb407 | 377 | #ifdef CONFIG_WIRELESS_EXT |
b453872c JG |
378 | #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ |
379 | /* If spy monitoring on */ | |
74079fdc | 380 | if (ieee->spy_data.spy_number > 0) { |
b453872c | 381 | struct iw_quality wstats; |
74079fdc JK |
382 | |
383 | wstats.updated = 0; | |
b0a4e7d8 | 384 | if (rx_stats->mask & LIBIPW_STATMASK_RSSI) { |
566bfe5a | 385 | wstats.level = rx_stats->signal; |
74079fdc JK |
386 | wstats.updated |= IW_QUAL_LEVEL_UPDATED; |
387 | } else | |
388 | wstats.updated |= IW_QUAL_LEVEL_INVALID; | |
389 | ||
b0a4e7d8 | 390 | if (rx_stats->mask & LIBIPW_STATMASK_NOISE) { |
74079fdc JK |
391 | wstats.noise = rx_stats->noise; |
392 | wstats.updated |= IW_QUAL_NOISE_UPDATED; | |
393 | } else | |
394 | wstats.updated |= IW_QUAL_NOISE_INVALID; | |
395 | ||
b0a4e7d8 | 396 | if (rx_stats->mask & LIBIPW_STATMASK_SIGNAL) { |
74079fdc JK |
397 | wstats.qual = rx_stats->signal; |
398 | wstats.updated |= IW_QUAL_QUAL_UPDATED; | |
399 | } else | |
400 | wstats.updated |= IW_QUAL_QUAL_INVALID; | |
401 | ||
b453872c | 402 | /* Update spy records */ |
74079fdc | 403 | wireless_spy_update(ieee->dev, hdr->addr2, &wstats); |
b453872c | 404 | } |
0edd5b44 | 405 | #endif /* IW_WIRELESS_SPY */ |
8f7eb407 | 406 | #endif /* CONFIG_WIRELESS_EXT */ |
74079fdc JK |
407 | |
408 | #ifdef NOT_YET | |
b453872c JG |
409 | hostap_update_rx_stats(local->ap, hdr, rx_stats); |
410 | #endif | |
411 | ||
b453872c | 412 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
ce55cbaf SH |
413 | dev->stats.rx_packets++; |
414 | dev->stats.rx_bytes += skb->len; | |
b0a4e7d8 | 415 | libipw_monitor_rx(ieee, skb, rx_stats); |
b453872c JG |
416 | return 1; |
417 | } | |
b453872c | 418 | |
b6daa25d ZY |
419 | can_be_decrypted = (is_multicast_ether_addr(hdr->addr1) || |
420 | is_broadcast_ether_addr(hdr->addr2)) ? | |
421 | ieee->host_mc_decrypt : ieee->host_decrypt; | |
422 | ||
423 | if (can_be_decrypted) { | |
b6daa25d ZY |
424 | if (skb->len >= hdrlen + 3) { |
425 | /* Top two-bits of byte 3 are the key index */ | |
c9308b06 | 426 | keyidx = skb->data[hdrlen + 3] >> 6; |
b6daa25d ZY |
427 | } |
428 | ||
c9308b06 DD |
429 | /* ieee->crypt[] is WEP_KEY (4) in length. Given that keyidx |
430 | * is only allowed 2-bits of storage, no value of keyidx can | |
431 | * be provided via above code that would result in keyidx | |
b6daa25d | 432 | * being out of range */ |
274bfb8d | 433 | crypt = ieee->crypt_info.crypt[keyidx]; |
b6daa25d | 434 | |
b453872c JG |
435 | #ifdef NOT_YET |
436 | sta = NULL; | |
437 | ||
438 | /* Use station specific key to override default keys if the | |
439 | * receiver address is a unicast address ("individual RA"). If | |
440 | * bcrx_sta_key parameter is set, station specific key is used | |
441 | * even with broad/multicast targets (this is against IEEE | |
442 | * 802.11, but makes it easier to use different keys with | |
443 | * stations that do not support WEP key mapping). */ | |
444 | ||
d4d2d288 | 445 | if (is_unicast_ether_addr(hdr->addr1) || local->bcrx_sta_key) |
0edd5b44 JG |
446 | (void)hostap_handle_sta_crypto(local, hdr, &crypt, |
447 | &sta); | |
b453872c JG |
448 | #endif |
449 | ||
450 | /* allow NULL decrypt to indicate an station specific override | |
451 | * for default encryption */ | |
452 | if (crypt && (crypt->ops == NULL || | |
453 | crypt->ops->decrypt_mpdu == NULL)) | |
454 | crypt = NULL; | |
455 | ||
f13baae4 | 456 | if (!crypt && (fc & IEEE80211_FCTL_PROTECTED)) { |
b453872c JG |
457 | /* This seems to be triggered by some (multicast?) |
458 | * frames from other than current BSS, so just drop the | |
459 | * frames silently instead of filling system log with | |
460 | * these reports. */ | |
b0a4e7d8 | 461 | LIBIPW_DEBUG_DROP("Decryption failed (not set)" |
e174961c | 462 | " (SA=%pM)\n", hdr->addr2); |
b453872c JG |
463 | ieee->ieee_stats.rx_discards_undecryptable++; |
464 | goto rx_dropped; | |
465 | } | |
466 | } | |
b453872c JG |
467 | #ifdef NOT_YET |
468 | if (type != WLAN_FC_TYPE_DATA) { | |
469 | if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && | |
f13baae4 | 470 | fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt && |
0edd5b44 | 471 | (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) { |
b453872c | 472 | printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " |
e174961c | 473 | "from %pM\n", dev->name, hdr->addr2); |
b453872c JG |
474 | /* TODO: could inform hostapd about this so that it |
475 | * could send auth failure report */ | |
476 | goto rx_dropped; | |
477 | } | |
478 | ||
b0a4e7d8 | 479 | if (libipw_rx_frame_mgmt(ieee, skb, rx_stats, type, stype)) |
b453872c JG |
480 | goto rx_dropped; |
481 | else | |
482 | goto rx_exit; | |
483 | } | |
484 | #endif | |
837925df LF |
485 | /* drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.29) */ |
486 | if (sc == ieee->prev_seq_ctl) | |
487 | goto rx_dropped; | |
488 | else | |
489 | ieee->prev_seq_ctl = sc; | |
b453872c JG |
490 | |
491 | /* Data frame - extract src/dst addresses */ | |
b0a4e7d8 | 492 | if (skb->len < LIBIPW_3ADDR_LEN) |
b453872c JG |
493 | goto rx_dropped; |
494 | ||
495 | switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { | |
496 | case IEEE80211_FCTL_FROMDS: | |
497 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
498 | memcpy(src, hdr->addr3, ETH_ALEN); | |
499 | break; | |
500 | case IEEE80211_FCTL_TODS: | |
501 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
502 | memcpy(src, hdr->addr2, ETH_ALEN); | |
503 | break; | |
504 | case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: | |
b0a4e7d8 | 505 | if (skb->len < LIBIPW_4ADDR_LEN) |
b453872c JG |
506 | goto rx_dropped; |
507 | memcpy(dst, hdr->addr3, ETH_ALEN); | |
508 | memcpy(src, hdr->addr4, ETH_ALEN); | |
509 | break; | |
510 | case 0: | |
511 | memcpy(dst, hdr->addr1, ETH_ALEN); | |
512 | memcpy(src, hdr->addr2, ETH_ALEN); | |
513 | break; | |
514 | } | |
515 | ||
516 | #ifdef NOT_YET | |
517 | if (hostap_rx_frame_wds(ieee, hdr, fc, &wds)) | |
518 | goto rx_dropped; | |
519 | if (wds) { | |
520 | skb->dev = dev = wds; | |
521 | stats = hostap_get_stats(dev); | |
522 | } | |
523 | ||
524 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && | |
0edd5b44 | 525 | (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == |
2e42e474 JP |
526 | IEEE80211_FCTL_FROMDS && ieee->stadev && |
527 | ether_addr_equal(hdr->addr2, ieee->assoc_ap_addr)) { | |
b453872c JG |
528 | /* Frame from BSSID of the AP for which we are a client */ |
529 | skb->dev = dev = ieee->stadev; | |
530 | stats = hostap_get_stats(dev); | |
531 | from_assoc_ap = 1; | |
532 | } | |
533 | #endif | |
534 | ||
b453872c JG |
535 | #ifdef NOT_YET |
536 | if ((ieee->iw_mode == IW_MODE_MASTER || | |
0edd5b44 | 537 | ieee->iw_mode == IW_MODE_REPEAT) && !from_assoc_ap) { |
b453872c JG |
538 | switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, |
539 | wds != NULL)) { | |
540 | case AP_RX_CONTINUE_NOT_AUTHORIZED: | |
541 | frame_authorized = 0; | |
542 | break; | |
543 | case AP_RX_CONTINUE: | |
544 | frame_authorized = 1; | |
545 | break; | |
546 | case AP_RX_DROP: | |
547 | goto rx_dropped; | |
548 | case AP_RX_EXIT: | |
549 | goto rx_exit; | |
550 | } | |
551 | } | |
552 | #endif | |
553 | ||
554 | /* Nullfunc frames may have PS-bit set, so they must be passed to | |
555 | * hostap_handle_sta_rx() before being dropped here. */ | |
9e8571af JK |
556 | |
557 | stype &= ~IEEE80211_STYPE_QOS_DATA; | |
558 | ||
b453872c JG |
559 | if (stype != IEEE80211_STYPE_DATA && |
560 | stype != IEEE80211_STYPE_DATA_CFACK && | |
561 | stype != IEEE80211_STYPE_DATA_CFPOLL && | |
562 | stype != IEEE80211_STYPE_DATA_CFACKPOLL) { | |
563 | if (stype != IEEE80211_STYPE_NULLFUNC) | |
b0a4e7d8 | 564 | LIBIPW_DEBUG_DROP("RX: dropped data frame " |
0edd5b44 JG |
565 | "with no data (type=0x%02x, " |
566 | "subtype=0x%02x, len=%d)\n", | |
567 | type, stype, skb->len); | |
b453872c JG |
568 | goto rx_dropped; |
569 | } | |
570 | ||
571 | /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ | |
572 | ||
b6daa25d | 573 | if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted && |
b0a4e7d8 | 574 | (keyidx = libipw_rx_frame_decrypt(ieee, skb, crypt)) < 0) |
b453872c JG |
575 | goto rx_dropped; |
576 | ||
b0a4e7d8 | 577 | hdr = (struct libipw_hdr_4addr *)skb->data; |
b453872c JG |
578 | |
579 | /* skb: hdr + (possibly fragmented) plaintext payload */ | |
580 | // PR: FIXME: hostap has additional conditions in the "if" below: | |
f13baae4 | 581 | // ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) && |
9eafe76b | 582 | if ((frag != 0) || (fc & IEEE80211_FCTL_MOREFRAGS)) { |
b453872c | 583 | int flen; |
b0a4e7d8 JL |
584 | struct sk_buff *frag_skb = libipw_frag_cache_get(ieee, hdr); |
585 | LIBIPW_DEBUG_FRAG("Rx Fragment received (%u)\n", frag); | |
b453872c JG |
586 | |
587 | if (!frag_skb) { | |
b0a4e7d8 | 588 | LIBIPW_DEBUG(LIBIPW_DL_RX | LIBIPW_DL_FRAG, |
b453872c JG |
589 | "Rx cannot get skb from fragment " |
590 | "cache (morefrag=%d seq=%u frag=%u)\n", | |
591 | (fc & IEEE80211_FCTL_MOREFRAGS) != 0, | |
592 | WLAN_GET_SEQ_SEQ(sc), frag); | |
593 | goto rx_dropped; | |
594 | } | |
595 | ||
596 | flen = skb->len; | |
597 | if (frag != 0) | |
598 | flen -= hdrlen; | |
599 | ||
4305b541 | 600 | if (frag_skb->tail + flen > frag_skb->end) { |
b453872c JG |
601 | printk(KERN_WARNING "%s: host decrypted and " |
602 | "reassembled frame did not fit skb\n", | |
603 | dev->name); | |
b0a4e7d8 | 604 | libipw_frag_cache_invalidate(ieee, hdr); |
b453872c JG |
605 | goto rx_dropped; |
606 | } | |
607 | ||
608 | if (frag == 0) { | |
609 | /* copy first fragment (including full headers) into | |
610 | * beginning of the fragment cache skb */ | |
d626f62b | 611 | skb_copy_from_linear_data(skb, skb_put(frag_skb, flen), flen); |
b453872c JG |
612 | } else { |
613 | /* append frame payload to the end of the fragment | |
614 | * cache skb */ | |
d626f62b ACM |
615 | skb_copy_from_linear_data_offset(skb, hdrlen, |
616 | skb_put(frag_skb, flen), flen); | |
b453872c JG |
617 | } |
618 | dev_kfree_skb_any(skb); | |
619 | skb = NULL; | |
620 | ||
621 | if (fc & IEEE80211_FCTL_MOREFRAGS) { | |
622 | /* more fragments expected - leave the skb in fragment | |
623 | * cache for now; it will be delivered to upper layers | |
624 | * after all fragments have been received */ | |
625 | goto rx_exit; | |
626 | } | |
627 | ||
628 | /* this was the last fragment and the frame will be | |
629 | * delivered, so remove skb from fragment cache */ | |
630 | skb = frag_skb; | |
b0a4e7d8 JL |
631 | hdr = (struct libipw_hdr_4addr *)skb->data; |
632 | libipw_frag_cache_invalidate(ieee, hdr); | |
b453872c JG |
633 | } |
634 | ||
635 | /* skb: hdr + (possible reassembled) full MSDU payload; possibly still | |
636 | * encrypted/authenticated */ | |
b6daa25d | 637 | if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted && |
b0a4e7d8 | 638 | libipw_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) |
b453872c JG |
639 | goto rx_dropped; |
640 | ||
b0a4e7d8 | 641 | hdr = (struct libipw_hdr_4addr *)skb->data; |
f13baae4 | 642 | if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) { |
0edd5b44 | 643 | if ( /*ieee->ieee802_1x && */ |
b0a4e7d8 | 644 | libipw_is_eapol_frame(ieee, skb)) { |
b453872c JG |
645 | /* pass unencrypted EAPOL frames even if encryption is |
646 | * configured */ | |
b453872c | 647 | } else { |
b0a4e7d8 | 648 | LIBIPW_DEBUG_DROP("encryption configured, but RX " |
e174961c JB |
649 | "frame not encrypted (SA=%pM)\n", |
650 | hdr->addr2); | |
b453872c JG |
651 | goto rx_dropped; |
652 | } | |
653 | } | |
654 | ||
f13baae4 | 655 | if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep && |
b0a4e7d8 JL |
656 | !libipw_is_eapol_frame(ieee, skb)) { |
657 | LIBIPW_DEBUG_DROP("dropped unencrypted RX data " | |
e174961c JB |
658 | "frame from %pM (drop_unencrypted=1)\n", |
659 | hdr->addr2); | |
b453872c JG |
660 | goto rx_dropped; |
661 | } | |
662 | ||
c9308b06 DD |
663 | /* If the frame was decrypted in hardware, we may need to strip off |
664 | * any security data (IV, ICV, etc) that was left behind */ | |
665 | if (!can_be_decrypted && (fc & IEEE80211_FCTL_PROTECTED) && | |
666 | ieee->host_strip_iv_icv) { | |
64265651 | 667 | int trimlen = 0; |
c9308b06 DD |
668 | |
669 | /* Top two-bits of byte 3 are the key index */ | |
670 | if (skb->len >= hdrlen + 3) | |
671 | keyidx = skb->data[hdrlen + 3] >> 6; | |
672 | ||
673 | /* To strip off any security data which appears before the | |
674 | * payload, we simply increase hdrlen (as the header gets | |
675 | * chopped off immediately below). For the security data which | |
676 | * appears after the payload, we use skb_trim. */ | |
677 | ||
678 | switch (ieee->sec.encode_alg[keyidx]) { | |
679 | case SEC_ALG_WEP: | |
680 | /* 4 byte IV */ | |
681 | hdrlen += 4; | |
682 | /* 4 byte ICV */ | |
683 | trimlen = 4; | |
684 | break; | |
685 | case SEC_ALG_TKIP: | |
686 | /* 4 byte IV, 4 byte ExtIV */ | |
687 | hdrlen += 8; | |
688 | /* 8 byte MIC, 4 byte ICV */ | |
689 | trimlen = 12; | |
690 | break; | |
691 | case SEC_ALG_CCMP: | |
692 | /* 8 byte CCMP header */ | |
693 | hdrlen += 8; | |
694 | /* 8 byte MIC */ | |
695 | trimlen = 8; | |
696 | break; | |
697 | } | |
698 | ||
699 | if (skb->len < trimlen) | |
700 | goto rx_dropped; | |
701 | ||
702 | __skb_trim(skb, skb->len - trimlen); | |
703 | ||
704 | if (skb->len < hdrlen) | |
705 | goto rx_dropped; | |
706 | } | |
707 | ||
b453872c JG |
708 | /* skb: hdr + (possible reassembled) full plaintext payload */ |
709 | ||
710 | payload = skb->data + hdrlen; | |
711 | ethertype = (payload[6] << 8) | payload[7]; | |
712 | ||
713 | #ifdef NOT_YET | |
714 | /* If IEEE 802.1X is used, check whether the port is authorized to send | |
715 | * the received frame. */ | |
716 | if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) { | |
717 | if (ethertype == ETH_P_PAE) { | |
718 | printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n", | |
719 | dev->name); | |
720 | if (ieee->hostapd && ieee->apdev) { | |
721 | /* Send IEEE 802.1X frames to the user | |
722 | * space daemon for processing */ | |
723 | prism2_rx_80211(ieee->apdev, skb, rx_stats, | |
724 | PRISM2_RX_MGMT); | |
725 | ieee->apdevstats.rx_packets++; | |
726 | ieee->apdevstats.rx_bytes += skb->len; | |
727 | goto rx_exit; | |
728 | } | |
729 | } else if (!frame_authorized) { | |
730 | printk(KERN_DEBUG "%s: dropped frame from " | |
731 | "unauthorized port (IEEE 802.1X): " | |
0edd5b44 | 732 | "ethertype=0x%04x\n", dev->name, ethertype); |
b453872c JG |
733 | goto rx_dropped; |
734 | } | |
735 | } | |
736 | #endif | |
737 | ||
738 | /* convert hdr + possible LLC headers into Ethernet header */ | |
739 | if (skb->len - hdrlen >= 8 && | |
b0a4e7d8 | 740 | ((memcmp(payload, libipw_rfc1042_header, SNAP_SIZE) == 0 && |
b453872c | 741 | ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || |
b0a4e7d8 | 742 | memcmp(payload, libipw_bridge_tunnel_header, SNAP_SIZE) == 0)) { |
b453872c JG |
743 | /* remove RFC1042 or Bridge-Tunnel encapsulation and |
744 | * replace EtherType */ | |
745 | skb_pull(skb, hdrlen + SNAP_SIZE); | |
746 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
747 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
748 | } else { | |
d9e94d56 | 749 | __be16 len; |
b453872c JG |
750 | /* Leave Ethernet header part of hdr and full payload */ |
751 | skb_pull(skb, hdrlen); | |
752 | len = htons(skb->len); | |
753 | memcpy(skb_push(skb, 2), &len, 2); | |
754 | memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); | |
755 | memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); | |
756 | } | |
757 | ||
758 | #ifdef NOT_YET | |
759 | if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == | |
0edd5b44 | 760 | IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) { |
b453872c JG |
761 | /* Non-standard frame: get addr4 from its bogus location after |
762 | * the payload */ | |
27d7ff46 ACM |
763 | skb_copy_to_linear_data_offset(skb, ETH_ALEN, |
764 | skb->data + skb->len - ETH_ALEN, | |
765 | ETH_ALEN); | |
b453872c JG |
766 | skb_trim(skb, skb->len - ETH_ALEN); |
767 | } | |
768 | #endif | |
769 | ||
ce55cbaf SH |
770 | dev->stats.rx_packets++; |
771 | dev->stats.rx_bytes += skb->len; | |
b453872c JG |
772 | |
773 | #ifdef NOT_YET | |
0edd5b44 | 774 | if (ieee->iw_mode == IW_MODE_MASTER && !wds && ieee->ap->bridge_packets) { |
d4d2d288 | 775 | if (is_multicast_ether_addr(dst)) { |
b453872c JG |
776 | /* copy multicast frame both to the higher layers and |
777 | * to the wireless media */ | |
778 | ieee->ap->bridged_multicast++; | |
779 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
780 | if (skb2 == NULL) | |
781 | printk(KERN_DEBUG "%s: skb_clone failed for " | |
782 | "multicast frame\n", dev->name); | |
783 | } else if (hostap_is_sta_assoc(ieee->ap, dst)) { | |
784 | /* send frame directly to the associated STA using | |
785 | * wireless media and not passing to higher layers */ | |
786 | ieee->ap->bridged_unicast++; | |
787 | skb2 = skb; | |
788 | skb = NULL; | |
789 | } | |
790 | } | |
791 | ||
792 | if (skb2 != NULL) { | |
793 | /* send to wireless media */ | |
459a98ed | 794 | skb2->dev = dev; |
4e39430a | 795 | skb2->protocol = htons(ETH_P_802_3); |
459a98ed | 796 | skb_reset_mac_header(skb2); |
c1d2bbe1 | 797 | skb_reset_network_header(skb2); |
b0e380b1 | 798 | /* skb2->network_header += ETH_HLEN; */ |
b453872c JG |
799 | dev_queue_xmit(skb2); |
800 | } | |
b453872c JG |
801 | #endif |
802 | ||
803 | if (skb) { | |
804 | skb->protocol = eth_type_trans(skb, dev); | |
805 | memset(skb->cb, 0, sizeof(skb->cb)); | |
0edd5b44 | 806 | skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ |
d6529237 ZY |
807 | if (netif_rx(skb) == NET_RX_DROP) { |
808 | /* netif_rx always succeeds, but it might drop | |
809 | * the packet. If it drops the packet, we log that | |
810 | * in our stats. */ | |
b0a4e7d8 | 811 | LIBIPW_DEBUG_DROP |
d6529237 | 812 | ("RX: netif_rx dropped the packet\n"); |
ce55cbaf | 813 | dev->stats.rx_dropped++; |
d6529237 | 814 | } |
b453872c JG |
815 | } |
816 | ||
0edd5b44 | 817 | rx_exit: |
b453872c JG |
818 | #ifdef NOT_YET |
819 | if (sta) | |
820 | hostap_handle_sta_release(sta); | |
821 | #endif | |
822 | return 1; | |
823 | ||
0edd5b44 | 824 | rx_dropped: |
ce55cbaf | 825 | dev->stats.rx_dropped++; |
b453872c JG |
826 | |
827 | /* Returning 0 indicates to caller that we have not handled the SKB-- | |
828 | * so it is still allocated and can be used again by underlying | |
829 | * hardware as a DMA target */ | |
830 | return 0; | |
831 | } | |
832 | ||
b0a4e7d8 | 833 | /* Filter out unrelated packets, call libipw_rx[_mgt] |
f2060f03 DD |
834 | * This function takes over the skb, it should not be used again after calling |
835 | * this function. */ | |
b0a4e7d8 JL |
836 | void libipw_rx_any(struct libipw_device *ieee, |
837 | struct sk_buff *skb, struct libipw_rx_stats *stats) | |
1a995b45 | 838 | { |
b0a4e7d8 | 839 | struct libipw_hdr_4addr *hdr; |
1a995b45 DV |
840 | int is_packet_for_us; |
841 | u16 fc; | |
842 | ||
f2060f03 | 843 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
b0a4e7d8 | 844 | if (!libipw_rx(ieee, skb, stats)) |
f2060f03 DD |
845 | dev_kfree_skb_irq(skb); |
846 | return; | |
847 | } | |
848 | ||
849 | if (skb->len < sizeof(struct ieee80211_hdr)) | |
850 | goto drop_free; | |
1a995b45 | 851 | |
b0a4e7d8 | 852 | hdr = (struct libipw_hdr_4addr *)skb->data; |
1a995b45 DV |
853 | fc = le16_to_cpu(hdr->frame_ctl); |
854 | ||
855 | if ((fc & IEEE80211_FCTL_VERS) != 0) | |
f2060f03 | 856 | goto drop_free; |
64265651 | 857 | |
1a995b45 DV |
858 | switch (fc & IEEE80211_FCTL_FTYPE) { |
859 | case IEEE80211_FTYPE_MGMT: | |
b0a4e7d8 | 860 | if (skb->len < sizeof(struct libipw_hdr_3addr)) |
f2060f03 | 861 | goto drop_free; |
b0a4e7d8 | 862 | libipw_rx_mgt(ieee, hdr, stats); |
f2060f03 DD |
863 | dev_kfree_skb_irq(skb); |
864 | return; | |
1a995b45 DV |
865 | case IEEE80211_FTYPE_DATA: |
866 | break; | |
867 | case IEEE80211_FTYPE_CTL: | |
f2060f03 | 868 | return; |
1a995b45 | 869 | default: |
f2060f03 | 870 | return; |
1a995b45 DV |
871 | } |
872 | ||
873 | is_packet_for_us = 0; | |
874 | switch (ieee->iw_mode) { | |
875 | case IW_MODE_ADHOC: | |
876 | /* our BSS and not from/to DS */ | |
877 | if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0) | |
878 | if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) { | |
879 | /* promisc: get all */ | |
880 | if (ieee->dev->flags & IFF_PROMISC) | |
881 | is_packet_for_us = 1; | |
882 | /* to us */ | |
883 | else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0) | |
884 | is_packet_for_us = 1; | |
885 | /* mcast */ | |
886 | else if (is_multicast_ether_addr(hdr->addr1)) | |
887 | is_packet_for_us = 1; | |
888 | } | |
889 | break; | |
890 | case IW_MODE_INFRA: | |
891 | /* our BSS (== from our AP) and from DS */ | |
892 | if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0) | |
893 | if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) { | |
894 | /* promisc: get all */ | |
895 | if (ieee->dev->flags & IFF_PROMISC) | |
896 | is_packet_for_us = 1; | |
897 | /* to us */ | |
898 | else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0) | |
899 | is_packet_for_us = 1; | |
900 | /* mcast */ | |
901 | else if (is_multicast_ether_addr(hdr->addr1)) { | |
902 | /* not our own packet bcasted from AP */ | |
903 | if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN)) | |
904 | is_packet_for_us = 1; | |
905 | } | |
906 | } | |
907 | break; | |
908 | default: | |
909 | /* ? */ | |
910 | break; | |
911 | } | |
912 | ||
913 | if (is_packet_for_us) | |
b0a4e7d8 | 914 | if (!libipw_rx(ieee, skb, stats)) |
f2060f03 DD |
915 | dev_kfree_skb_irq(skb); |
916 | return; | |
917 | ||
918 | drop_free: | |
919 | dev_kfree_skb_irq(skb); | |
ce55cbaf | 920 | ieee->dev->stats.rx_dropped++; |
1a995b45 DV |
921 | } |
922 | ||
b453872c JG |
923 | #define MGMT_FRAME_FIXED_PART_LENGTH 0x24 |
924 | ||
9e8571af JK |
925 | static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; |
926 | ||
927 | /* | |
25985edc | 928 | * Make the structure we read from the beacon packet to have |
9e8571af JK |
929 | * the right values |
930 | */ | |
b0a4e7d8 | 931 | static int libipw_verify_qos_info(struct libipw_qos_information_element |
9e8571af JK |
932 | *info_element, int sub_type) |
933 | { | |
934 | ||
935 | if (info_element->qui_subtype != sub_type) | |
936 | return -1; | |
937 | if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN)) | |
938 | return -1; | |
939 | if (info_element->qui_type != QOS_OUI_TYPE) | |
940 | return -1; | |
941 | if (info_element->version != QOS_VERSION_1) | |
942 | return -1; | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | /* | |
948 | * Parse a QoS parameter element | |
949 | */ | |
b0a4e7d8 JL |
950 | static int libipw_read_qos_param_element(struct libipw_qos_parameter_info |
951 | *element_param, struct libipw_info_element | |
9e8571af JK |
952 | *info_element) |
953 | { | |
954 | int ret = 0; | |
b0a4e7d8 | 955 | u16 size = sizeof(struct libipw_qos_parameter_info) - 2; |
9e8571af JK |
956 | |
957 | if ((info_element == NULL) || (element_param == NULL)) | |
958 | return -1; | |
959 | ||
960 | if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) { | |
961 | memcpy(element_param->info_element.qui, info_element->data, | |
962 | info_element->len); | |
963 | element_param->info_element.elementID = info_element->id; | |
964 | element_param->info_element.length = info_element->len; | |
965 | } else | |
966 | ret = -1; | |
967 | if (ret == 0) | |
b0a4e7d8 | 968 | ret = libipw_verify_qos_info(&element_param->info_element, |
9e8571af JK |
969 | QOS_OUI_PARAM_SUB_TYPE); |
970 | return ret; | |
971 | } | |
972 | ||
973 | /* | |
974 | * Parse a QoS information element | |
975 | */ | |
b0a4e7d8 JL |
976 | static int libipw_read_qos_info_element(struct |
977 | libipw_qos_information_element | |
978 | *element_info, struct libipw_info_element | |
9e8571af JK |
979 | *info_element) |
980 | { | |
981 | int ret = 0; | |
b0a4e7d8 | 982 | u16 size = sizeof(struct libipw_qos_information_element) - 2; |
9e8571af JK |
983 | |
984 | if (element_info == NULL) | |
985 | return -1; | |
986 | if (info_element == NULL) | |
987 | return -1; | |
988 | ||
989 | if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) { | |
990 | memcpy(element_info->qui, info_element->data, | |
991 | info_element->len); | |
992 | element_info->elementID = info_element->id; | |
993 | element_info->length = info_element->len; | |
994 | } else | |
995 | ret = -1; | |
996 | ||
997 | if (ret == 0) | |
b0a4e7d8 | 998 | ret = libipw_verify_qos_info(element_info, |
9e8571af JK |
999 | QOS_OUI_INFO_SUB_TYPE); |
1000 | return ret; | |
1001 | } | |
1002 | ||
1003 | /* | |
1004 | * Write QoS parameters from the ac parameters. | |
1005 | */ | |
b0a4e7d8 JL |
1006 | static int libipw_qos_convert_ac_to_parameters(struct |
1007 | libipw_qos_parameter_info | |
9e8571af | 1008 | *param_elm, struct |
b0a4e7d8 | 1009 | libipw_qos_parameters |
9e8571af JK |
1010 | *qos_param) |
1011 | { | |
1012 | int rc = 0; | |
1013 | int i; | |
b0a4e7d8 | 1014 | struct libipw_qos_ac_parameter *ac_params; |
9e8571af JK |
1015 | u32 txop; |
1016 | u8 cw_min; | |
1017 | u8 cw_max; | |
1018 | ||
1019 | for (i = 0; i < QOS_QUEUE_NUM; i++) { | |
1020 | ac_params = &(param_elm->ac_params_record[i]); | |
1021 | ||
1022 | qos_param->aifs[i] = (ac_params->aci_aifsn) & 0x0F; | |
1023 | qos_param->aifs[i] -= (qos_param->aifs[i] < 2) ? 0 : 2; | |
1024 | ||
1025 | cw_min = ac_params->ecw_min_max & 0x0F; | |
8fffc15d | 1026 | qos_param->cw_min[i] = cpu_to_le16((1 << cw_min) - 1); |
9e8571af JK |
1027 | |
1028 | cw_max = (ac_params->ecw_min_max & 0xF0) >> 4; | |
8fffc15d | 1029 | qos_param->cw_max[i] = cpu_to_le16((1 << cw_max) - 1); |
9e8571af JK |
1030 | |
1031 | qos_param->flag[i] = | |
1032 | (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00; | |
1033 | ||
1034 | txop = le16_to_cpu(ac_params->tx_op_limit) * 32; | |
8fffc15d | 1035 | qos_param->tx_op_limit[i] = cpu_to_le16(txop); |
9e8571af JK |
1036 | } |
1037 | return rc; | |
1038 | } | |
1039 | ||
1040 | /* | |
1041 | * we have a generic data element which it may contain QoS information or | |
1042 | * parameters element. check the information element length to decide | |
1043 | * which type to read | |
1044 | */ | |
b0a4e7d8 | 1045 | static int libipw_parse_qos_info_param_IE(struct libipw_info_element |
9e8571af | 1046 | *info_element, |
b0a4e7d8 | 1047 | struct libipw_network *network) |
9e8571af JK |
1048 | { |
1049 | int rc = 0; | |
b0a4e7d8 JL |
1050 | struct libipw_qos_parameters *qos_param = NULL; |
1051 | struct libipw_qos_information_element qos_info_element; | |
9e8571af | 1052 | |
b0a4e7d8 | 1053 | rc = libipw_read_qos_info_element(&qos_info_element, info_element); |
9e8571af JK |
1054 | |
1055 | if (rc == 0) { | |
1056 | network->qos_data.param_count = qos_info_element.ac_info & 0x0F; | |
1057 | network->flags |= NETWORK_HAS_QOS_INFORMATION; | |
1058 | } else { | |
b0a4e7d8 | 1059 | struct libipw_qos_parameter_info param_element; |
9e8571af | 1060 | |
b0a4e7d8 | 1061 | rc = libipw_read_qos_param_element(¶m_element, |
9e8571af JK |
1062 | info_element); |
1063 | if (rc == 0) { | |
1064 | qos_param = &(network->qos_data.parameters); | |
b0a4e7d8 | 1065 | libipw_qos_convert_ac_to_parameters(¶m_element, |
9e8571af JK |
1066 | qos_param); |
1067 | network->flags |= NETWORK_HAS_QOS_PARAMETERS; | |
1068 | network->qos_data.param_count = | |
1069 | param_element.info_element.ac_info & 0x0F; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | if (rc == 0) { | |
b0a4e7d8 | 1074 | LIBIPW_DEBUG_QOS("QoS is supported\n"); |
9e8571af JK |
1075 | network->qos_data.supported = 1; |
1076 | } | |
1077 | return rc; | |
1078 | } | |
1079 | ||
3756162b | 1080 | #ifdef CONFIG_LIBIPW_DEBUG |
d74cc9a7 | 1081 | #define MFIE_STRING(x) case WLAN_EID_ ##x: return #x |
d1b46b0f ZY |
1082 | |
1083 | static const char *get_info_element_string(u16 id) | |
1084 | { | |
1085 | switch (id) { | |
1086 | MFIE_STRING(SSID); | |
d74cc9a7 HS |
1087 | MFIE_STRING(SUPP_RATES); |
1088 | MFIE_STRING(FH_PARAMS); | |
1089 | MFIE_STRING(DS_PARAMS); | |
1090 | MFIE_STRING(CF_PARAMS); | |
d1b46b0f | 1091 | MFIE_STRING(TIM); |
d74cc9a7 | 1092 | MFIE_STRING(IBSS_PARAMS); |
d1b46b0f | 1093 | MFIE_STRING(COUNTRY); |
d74cc9a7 HS |
1094 | MFIE_STRING(HP_PARAMS); |
1095 | MFIE_STRING(HP_TABLE); | |
d1b46b0f ZY |
1096 | MFIE_STRING(REQUEST); |
1097 | MFIE_STRING(CHALLENGE); | |
d74cc9a7 HS |
1098 | MFIE_STRING(PWR_CONSTRAINT); |
1099 | MFIE_STRING(PWR_CAPABILITY); | |
d1b46b0f ZY |
1100 | MFIE_STRING(TPC_REQUEST); |
1101 | MFIE_STRING(TPC_REPORT); | |
d74cc9a7 HS |
1102 | MFIE_STRING(SUPPORTED_CHANNELS); |
1103 | MFIE_STRING(CHANNEL_SWITCH); | |
d1b46b0f ZY |
1104 | MFIE_STRING(MEASURE_REQUEST); |
1105 | MFIE_STRING(MEASURE_REPORT); | |
1106 | MFIE_STRING(QUIET); | |
1107 | MFIE_STRING(IBSS_DFS); | |
1108 | MFIE_STRING(ERP_INFO); | |
1109 | MFIE_STRING(RSN); | |
d74cc9a7 | 1110 | MFIE_STRING(EXT_SUPP_RATES); |
04b2312a | 1111 | MFIE_STRING(VENDOR_SPECIFIC); |
d1b46b0f ZY |
1112 | MFIE_STRING(QOS_PARAMETER); |
1113 | default: | |
1114 | return "UNKNOWN"; | |
1115 | } | |
1116 | } | |
1117 | #endif | |
1118 | ||
b0a4e7d8 | 1119 | static int libipw_parse_info_param(struct libipw_info_element |
ff0037b2 | 1120 | *info_element, u16 length, |
b0a4e7d8 | 1121 | struct libipw_network *network) |
b453872c | 1122 | { |
9387b7ca | 1123 | DECLARE_SSID_BUF(ssid); |
ff9e00f1 | 1124 | u8 i; |
3756162b | 1125 | #ifdef CONFIG_LIBIPW_DEBUG |
b453872c JG |
1126 | char rates_str[64]; |
1127 | char *p; | |
1128 | #endif | |
b453872c | 1129 | |
ff9e00f1 ID |
1130 | while (length >= sizeof(*info_element)) { |
1131 | if (sizeof(*info_element) + info_element->len > length) { | |
b0a4e7d8 | 1132 | LIBIPW_DEBUG_MGMT("Info elem: parse failed: " |
aec41a0d JB |
1133 | "info_element->len + 2 > left : " |
1134 | "info_element->len+2=%zd left=%d, id=%d.\n", | |
1135 | info_element->len + | |
1136 | sizeof(*info_element), | |
1137 | length, info_element->id); | |
f09fc44d ZY |
1138 | /* We stop processing but don't return an error here |
1139 | * because some misbehaviour APs break this rule. ie. | |
1140 | * Orinoco AP1000. */ | |
1141 | break; | |
0edd5b44 | 1142 | } |
b453872c JG |
1143 | |
1144 | switch (info_element->id) { | |
d74cc9a7 | 1145 | case WLAN_EID_SSID: |
b453872c | 1146 | network->ssid_len = min(info_element->len, |
0edd5b44 JG |
1147 | (u8) IW_ESSID_MAX_SIZE); |
1148 | memcpy(network->ssid, info_element->data, | |
1149 | network->ssid_len); | |
1150 | if (network->ssid_len < IW_ESSID_MAX_SIZE) | |
1151 | memset(network->ssid + network->ssid_len, 0, | |
b453872c JG |
1152 | IW_ESSID_MAX_SIZE - network->ssid_len); |
1153 | ||
b0a4e7d8 | 1154 | LIBIPW_DEBUG_MGMT("WLAN_EID_SSID: '%s' len=%d.\n", |
9387b7ca JL |
1155 | print_ssid(ssid, network->ssid, |
1156 | network->ssid_len), | |
c5d3dce8 | 1157 | network->ssid_len); |
b453872c JG |
1158 | break; |
1159 | ||
d74cc9a7 | 1160 | case WLAN_EID_SUPP_RATES: |
3756162b | 1161 | #ifdef CONFIG_LIBIPW_DEBUG |
b453872c JG |
1162 | p = rates_str; |
1163 | #endif | |
9e8571af JK |
1164 | network->rates_len = min(info_element->len, |
1165 | MAX_RATES_LENGTH); | |
b453872c JG |
1166 | for (i = 0; i < network->rates_len; i++) { |
1167 | network->rates[i] = info_element->data[i]; | |
3756162b | 1168 | #ifdef CONFIG_LIBIPW_DEBUG |
9e8571af JK |
1169 | p += snprintf(p, sizeof(rates_str) - |
1170 | (p - rates_str), "%02X ", | |
1171 | network->rates[i]); | |
b453872c | 1172 | #endif |
b0a4e7d8 | 1173 | if (libipw_is_ofdm_rate |
0edd5b44 | 1174 | (info_element->data[i])) { |
b453872c JG |
1175 | network->flags |= NETWORK_HAS_OFDM; |
1176 | if (info_element->data[i] & | |
b0a4e7d8 | 1177 | LIBIPW_BASIC_RATE_MASK) |
b453872c | 1178 | network->flags &= |
0edd5b44 | 1179 | ~NETWORK_HAS_CCK; |
b453872c JG |
1180 | } |
1181 | } | |
1182 | ||
b0a4e7d8 | 1183 | LIBIPW_DEBUG_MGMT("WLAN_EID_SUPP_RATES: '%s' (%d)\n", |
b453872c JG |
1184 | rates_str, network->rates_len); |
1185 | break; | |
1186 | ||
d74cc9a7 | 1187 | case WLAN_EID_EXT_SUPP_RATES: |
3756162b | 1188 | #ifdef CONFIG_LIBIPW_DEBUG |
b453872c JG |
1189 | p = rates_str; |
1190 | #endif | |
9e8571af JK |
1191 | network->rates_ex_len = min(info_element->len, |
1192 | MAX_RATES_EX_LENGTH); | |
b453872c JG |
1193 | for (i = 0; i < network->rates_ex_len; i++) { |
1194 | network->rates_ex[i] = info_element->data[i]; | |
3756162b | 1195 | #ifdef CONFIG_LIBIPW_DEBUG |
9e8571af JK |
1196 | p += snprintf(p, sizeof(rates_str) - |
1197 | (p - rates_str), "%02X ", | |
428e3cf5 | 1198 | network->rates_ex[i]); |
b453872c | 1199 | #endif |
b0a4e7d8 | 1200 | if (libipw_is_ofdm_rate |
0edd5b44 | 1201 | (info_element->data[i])) { |
b453872c JG |
1202 | network->flags |= NETWORK_HAS_OFDM; |
1203 | if (info_element->data[i] & | |
b0a4e7d8 | 1204 | LIBIPW_BASIC_RATE_MASK) |
b453872c | 1205 | network->flags &= |
0edd5b44 | 1206 | ~NETWORK_HAS_CCK; |
b453872c JG |
1207 | } |
1208 | } | |
1209 | ||
b0a4e7d8 | 1210 | LIBIPW_DEBUG_MGMT("WLAN_EID_EXT_SUPP_RATES: '%s' (%d)\n", |
b453872c JG |
1211 | rates_str, network->rates_ex_len); |
1212 | break; | |
1213 | ||
d74cc9a7 | 1214 | case WLAN_EID_DS_PARAMS: |
b0a4e7d8 | 1215 | LIBIPW_DEBUG_MGMT("WLAN_EID_DS_PARAMS: %d\n", |
b453872c | 1216 | info_element->data[0]); |
ff9e00f1 | 1217 | network->channel = info_element->data[0]; |
b453872c JG |
1218 | break; |
1219 | ||
d74cc9a7 | 1220 | case WLAN_EID_FH_PARAMS: |
b0a4e7d8 | 1221 | LIBIPW_DEBUG_MGMT("WLAN_EID_FH_PARAMS: ignored\n"); |
b453872c JG |
1222 | break; |
1223 | ||
d74cc9a7 | 1224 | case WLAN_EID_CF_PARAMS: |
b0a4e7d8 | 1225 | LIBIPW_DEBUG_MGMT("WLAN_EID_CF_PARAMS: ignored\n"); |
b453872c JG |
1226 | break; |
1227 | ||
d74cc9a7 | 1228 | case WLAN_EID_TIM: |
41a25c61 ZY |
1229 | network->tim.tim_count = info_element->data[0]; |
1230 | network->tim.tim_period = info_element->data[1]; | |
b0a4e7d8 | 1231 | LIBIPW_DEBUG_MGMT("WLAN_EID_TIM: partially ignored\n"); |
b453872c JG |
1232 | break; |
1233 | ||
d74cc9a7 | 1234 | case WLAN_EID_ERP_INFO: |
42c94e43 | 1235 | network->erp_value = info_element->data[0]; |
d8e2be90 | 1236 | network->flags |= NETWORK_HAS_ERP_VALUE; |
b0a4e7d8 | 1237 | LIBIPW_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n", |
42c94e43 JK |
1238 | network->erp_value); |
1239 | break; | |
1240 | ||
d74cc9a7 | 1241 | case WLAN_EID_IBSS_PARAMS: |
42c94e43 | 1242 | network->atim_window = info_element->data[0]; |
b0a4e7d8 | 1243 | LIBIPW_DEBUG_MGMT("WLAN_EID_IBSS_PARAMS: %d\n", |
42c94e43 | 1244 | network->atim_window); |
b453872c JG |
1245 | break; |
1246 | ||
d74cc9a7 | 1247 | case WLAN_EID_CHALLENGE: |
b0a4e7d8 | 1248 | LIBIPW_DEBUG_MGMT("WLAN_EID_CHALLENGE: ignored\n"); |
b453872c JG |
1249 | break; |
1250 | ||
04b2312a AS |
1251 | case WLAN_EID_VENDOR_SPECIFIC: |
1252 | LIBIPW_DEBUG_MGMT("WLAN_EID_VENDOR_SPECIFIC: %d bytes\n", | |
b453872c | 1253 | info_element->len); |
b0a4e7d8 | 1254 | if (!libipw_parse_qos_info_param_IE(info_element, |
9e8571af JK |
1255 | network)) |
1256 | break; | |
1257 | ||
0edd5b44 | 1258 | if (info_element->len >= 4 && |
b453872c JG |
1259 | info_element->data[0] == 0x00 && |
1260 | info_element->data[1] == 0x50 && | |
1261 | info_element->data[2] == 0xf2 && | |
1262 | info_element->data[3] == 0x01) { | |
1263 | network->wpa_ie_len = min(info_element->len + 2, | |
0edd5b44 | 1264 | MAX_WPA_IE_LEN); |
b453872c JG |
1265 | memcpy(network->wpa_ie, info_element, |
1266 | network->wpa_ie_len); | |
1267 | } | |
1268 | break; | |
1269 | ||
d74cc9a7 | 1270 | case WLAN_EID_RSN: |
b0a4e7d8 | 1271 | LIBIPW_DEBUG_MGMT("WLAN_EID_RSN: %d bytes\n", |
b453872c JG |
1272 | info_element->len); |
1273 | network->rsn_ie_len = min(info_element->len + 2, | |
0edd5b44 | 1274 | MAX_WPA_IE_LEN); |
b453872c JG |
1275 | memcpy(network->rsn_ie, info_element, |
1276 | network->rsn_ie_len); | |
1277 | break; | |
1278 | ||
d74cc9a7 | 1279 | case WLAN_EID_QOS_PARAMETER: |
ff0037b2 JK |
1280 | printk(KERN_ERR |
1281 | "QoS Error need to parse QOS_PARAMETER IE\n"); | |
9e8571af | 1282 | break; |
d1b46b0f | 1283 | /* 802.11h */ |
d74cc9a7 | 1284 | case WLAN_EID_PWR_CONSTRAINT: |
d1b46b0f ZY |
1285 | network->power_constraint = info_element->data[0]; |
1286 | network->flags |= NETWORK_HAS_POWER_CONSTRAINT; | |
1287 | break; | |
1288 | ||
d74cc9a7 | 1289 | case WLAN_EID_CHANNEL_SWITCH: |
d1b46b0f ZY |
1290 | network->power_constraint = info_element->data[0]; |
1291 | network->flags |= NETWORK_HAS_CSA; | |
1292 | break; | |
1293 | ||
d74cc9a7 | 1294 | case WLAN_EID_QUIET: |
d1b46b0f ZY |
1295 | network->quiet.count = info_element->data[0]; |
1296 | network->quiet.period = info_element->data[1]; | |
1297 | network->quiet.duration = info_element->data[2]; | |
1298 | network->quiet.offset = info_element->data[3]; | |
1299 | network->flags |= NETWORK_HAS_QUIET; | |
1300 | break; | |
1301 | ||
d74cc9a7 | 1302 | case WLAN_EID_IBSS_DFS: |
d1b46b0f ZY |
1303 | if (network->ibss_dfs) |
1304 | break; | |
571d6eee ACM |
1305 | network->ibss_dfs = kmemdup(info_element->data, |
1306 | info_element->len, | |
1307 | GFP_ATOMIC); | |
d1b46b0f ZY |
1308 | if (!network->ibss_dfs) |
1309 | return 1; | |
d1b46b0f ZY |
1310 | network->flags |= NETWORK_HAS_IBSS_DFS; |
1311 | break; | |
1312 | ||
d74cc9a7 | 1313 | case WLAN_EID_TPC_REPORT: |
d1b46b0f ZY |
1314 | network->tpc_report.transmit_power = |
1315 | info_element->data[0]; | |
1316 | network->tpc_report.link_margin = info_element->data[1]; | |
1317 | network->flags |= NETWORK_HAS_TPC_REPORT; | |
1318 | break; | |
9e8571af | 1319 | |
b453872c | 1320 | default: |
b0a4e7d8 | 1321 | LIBIPW_DEBUG_MGMT |
d1b46b0f ZY |
1322 | ("Unsupported info element: %s (%d)\n", |
1323 | get_info_element_string(info_element->id), | |
1324 | info_element->id); | |
0edd5b44 JG |
1325 | break; |
1326 | } | |
b453872c | 1327 | |
ff9e00f1 | 1328 | length -= sizeof(*info_element) + info_element->len; |
ff0037b2 | 1329 | info_element = |
b0a4e7d8 | 1330 | (struct libipw_info_element *)&info_element-> |
ff0037b2 | 1331 | data[info_element->len]; |
0edd5b44 | 1332 | } |
b453872c | 1333 | |
ff9e00f1 ID |
1334 | return 0; |
1335 | } | |
1336 | ||
b0a4e7d8 JL |
1337 | static int libipw_handle_assoc_resp(struct libipw_device *ieee, struct libipw_assoc_response |
1338 | *frame, struct libipw_rx_stats *stats) | |
ff9e00f1 | 1339 | { |
b0a4e7d8 | 1340 | struct libipw_network network_resp = { |
d1b46b0f ZY |
1341 | .ibss_dfs = NULL, |
1342 | }; | |
b0a4e7d8 | 1343 | struct libipw_network *network = &network_resp; |
ff9e00f1 ID |
1344 | struct net_device *dev = ieee->dev; |
1345 | ||
1346 | network->flags = 0; | |
1347 | network->qos_data.active = 0; | |
1348 | network->qos_data.supported = 0; | |
1349 | network->qos_data.param_count = 0; | |
1350 | network->qos_data.old_param_count = 0; | |
1351 | ||
1352 | //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF); | |
1353 | network->atim_window = le16_to_cpu(frame->aid); | |
1354 | network->listen_interval = le16_to_cpu(frame->status); | |
c1bda44a ID |
1355 | memcpy(network->bssid, frame->header.addr3, ETH_ALEN); |
1356 | network->capability = le16_to_cpu(frame->capability); | |
1357 | network->last_scanned = jiffies; | |
1358 | network->rates_len = network->rates_ex_len = 0; | |
1359 | network->last_associate = 0; | |
1360 | network->ssid_len = 0; | |
ff0037b2 JK |
1361 | network->erp_value = |
1362 | (network->capability & WLAN_CAPABILITY_IBSS) ? 0x3 : 0x0; | |
c1bda44a | 1363 | |
b0a4e7d8 | 1364 | if (stats->freq == LIBIPW_52GHZ_BAND) { |
c1bda44a ID |
1365 | /* for A band (No DS info) */ |
1366 | network->channel = stats->received_channel; | |
1367 | } else | |
1368 | network->flags |= NETWORK_HAS_CCK; | |
1369 | ||
1370 | network->wpa_ie_len = 0; | |
1371 | network->rsn_ie_len = 0; | |
ff9e00f1 | 1372 | |
b0a4e7d8 | 1373 | if (libipw_parse_info_param |
ff0037b2 | 1374 | (frame->info_element, stats->len - sizeof(*frame), network)) |
ff9e00f1 ID |
1375 | return 1; |
1376 | ||
c1bda44a | 1377 | network->mode = 0; |
b0a4e7d8 | 1378 | if (stats->freq == LIBIPW_52GHZ_BAND) |
c1bda44a ID |
1379 | network->mode = IEEE_A; |
1380 | else { | |
1381 | if (network->flags & NETWORK_HAS_OFDM) | |
1382 | network->mode |= IEEE_G; | |
1383 | if (network->flags & NETWORK_HAS_CCK) | |
1384 | network->mode |= IEEE_B; | |
1385 | } | |
1386 | ||
c1bda44a ID |
1387 | memcpy(&network->stats, stats, sizeof(network->stats)); |
1388 | ||
ff9e00f1 ID |
1389 | if (ieee->handle_assoc_response != NULL) |
1390 | ieee->handle_assoc_response(dev, frame, network); | |
1391 | ||
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | /***************************************************/ | |
1396 | ||
b0a4e7d8 | 1397 | static int libipw_network_init(struct libipw_device *ieee, struct libipw_probe_response |
ff9e00f1 | 1398 | *beacon, |
b0a4e7d8 JL |
1399 | struct libipw_network *network, |
1400 | struct libipw_rx_stats *stats) | |
ff9e00f1 | 1401 | { |
9387b7ca JL |
1402 | DECLARE_SSID_BUF(ssid); |
1403 | ||
ff9e00f1 ID |
1404 | network->qos_data.active = 0; |
1405 | network->qos_data.supported = 0; | |
1406 | network->qos_data.param_count = 0; | |
c1bda44a | 1407 | network->qos_data.old_param_count = 0; |
ff9e00f1 ID |
1408 | |
1409 | /* Pull out fixed field data */ | |
1410 | memcpy(network->bssid, beacon->header.addr3, ETH_ALEN); | |
1411 | network->capability = le16_to_cpu(beacon->capability); | |
1412 | network->last_scanned = jiffies; | |
1413 | network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]); | |
1414 | network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]); | |
1415 | network->beacon_interval = le16_to_cpu(beacon->beacon_interval); | |
1416 | /* Where to pull this? beacon->listen_interval; */ | |
1417 | network->listen_interval = 0x0A; | |
1418 | network->rates_len = network->rates_ex_len = 0; | |
1419 | network->last_associate = 0; | |
1420 | network->ssid_len = 0; | |
1421 | network->flags = 0; | |
1422 | network->atim_window = 0; | |
1423 | network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ? | |
1424 | 0x3 : 0x0; | |
1425 | ||
b0a4e7d8 | 1426 | if (stats->freq == LIBIPW_52GHZ_BAND) { |
ff9e00f1 ID |
1427 | /* for A band (No DS info) */ |
1428 | network->channel = stats->received_channel; | |
1429 | } else | |
1430 | network->flags |= NETWORK_HAS_CCK; | |
1431 | ||
1432 | network->wpa_ie_len = 0; | |
1433 | network->rsn_ie_len = 0; | |
1434 | ||
b0a4e7d8 | 1435 | if (libipw_parse_info_param |
ff0037b2 | 1436 | (beacon->info_element, stats->len - sizeof(*beacon), network)) |
ff9e00f1 ID |
1437 | return 1; |
1438 | ||
b453872c | 1439 | network->mode = 0; |
b0a4e7d8 | 1440 | if (stats->freq == LIBIPW_52GHZ_BAND) |
b453872c JG |
1441 | network->mode = IEEE_A; |
1442 | else { | |
1443 | if (network->flags & NETWORK_HAS_OFDM) | |
1444 | network->mode |= IEEE_G; | |
1445 | if (network->flags & NETWORK_HAS_CCK) | |
1446 | network->mode |= IEEE_B; | |
1447 | } | |
1448 | ||
1449 | if (network->mode == 0) { | |
b0a4e7d8 | 1450 | LIBIPW_DEBUG_SCAN("Filtered out '%s (%pM)' " |
b453872c | 1451 | "network.\n", |
9387b7ca | 1452 | print_ssid(ssid, network->ssid, |
7e272fcf | 1453 | network->ssid_len), |
e174961c | 1454 | network->bssid); |
b453872c JG |
1455 | return 1; |
1456 | } | |
1457 | ||
b453872c JG |
1458 | memcpy(&network->stats, stats, sizeof(network->stats)); |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
b0a4e7d8 JL |
1463 | static inline int is_same_network(struct libipw_network *src, |
1464 | struct libipw_network *dst) | |
b453872c JG |
1465 | { |
1466 | /* A network is only a duplicate if the channel, BSSID, and ESSID | |
1467 | * all match. We treat all <hidden> with the same BSSID and channel | |
1468 | * as one network */ | |
1469 | return ((src->ssid_len == dst->ssid_len) && | |
1470 | (src->channel == dst->channel) && | |
2e42e474 | 1471 | ether_addr_equal(src->bssid, dst->bssid) && |
b453872c JG |
1472 | !memcmp(src->ssid, dst->ssid, src->ssid_len)); |
1473 | } | |
1474 | ||
b0a4e7d8 JL |
1475 | static void update_network(struct libipw_network *dst, |
1476 | struct libipw_network *src) | |
b453872c | 1477 | { |
9e8571af JK |
1478 | int qos_active; |
1479 | u8 old_param; | |
1480 | ||
b0a4e7d8 | 1481 | libipw_network_reset(dst); |
d1b46b0f ZY |
1482 | dst->ibss_dfs = src->ibss_dfs; |
1483 | ||
f44349f2 JK |
1484 | /* We only update the statistics if they were created by receiving |
1485 | * the network information on the actual channel the network is on. | |
64265651 | 1486 | * |
f44349f2 JK |
1487 | * This keeps beacons received on neighbor channels from bringing |
1488 | * down the signal level of an AP. */ | |
1489 | if (dst->channel == src->stats.received_channel) | |
1490 | memcpy(&dst->stats, &src->stats, | |
b0a4e7d8 | 1491 | sizeof(struct libipw_rx_stats)); |
f44349f2 | 1492 | else |
b0a4e7d8 | 1493 | LIBIPW_DEBUG_SCAN("Network %pM info received " |
e174961c | 1494 | "off channel (%d vs. %d)\n", src->bssid, |
f44349f2 JK |
1495 | dst->channel, src->stats.received_channel); |
1496 | ||
b453872c JG |
1497 | dst->capability = src->capability; |
1498 | memcpy(dst->rates, src->rates, src->rates_len); | |
1499 | dst->rates_len = src->rates_len; | |
1500 | memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); | |
1501 | dst->rates_ex_len = src->rates_ex_len; | |
1502 | ||
1503 | dst->mode = src->mode; | |
1504 | dst->flags = src->flags; | |
1505 | dst->time_stamp[0] = src->time_stamp[0]; | |
1506 | dst->time_stamp[1] = src->time_stamp[1]; | |
1507 | ||
1508 | dst->beacon_interval = src->beacon_interval; | |
1509 | dst->listen_interval = src->listen_interval; | |
1510 | dst->atim_window = src->atim_window; | |
42c94e43 | 1511 | dst->erp_value = src->erp_value; |
41a25c61 | 1512 | dst->tim = src->tim; |
b453872c JG |
1513 | |
1514 | memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len); | |
1515 | dst->wpa_ie_len = src->wpa_ie_len; | |
1516 | memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len); | |
1517 | dst->rsn_ie_len = src->rsn_ie_len; | |
1518 | ||
1519 | dst->last_scanned = jiffies; | |
9e8571af JK |
1520 | qos_active = src->qos_data.active; |
1521 | old_param = dst->qos_data.old_param_count; | |
1522 | if (dst->flags & NETWORK_HAS_QOS_MASK) | |
1523 | memcpy(&dst->qos_data, &src->qos_data, | |
b0a4e7d8 | 1524 | sizeof(struct libipw_qos_data)); |
9e8571af JK |
1525 | else { |
1526 | dst->qos_data.supported = src->qos_data.supported; | |
1527 | dst->qos_data.param_count = src->qos_data.param_count; | |
1528 | } | |
1529 | ||
1530 | if (dst->qos_data.supported == 1) { | |
1531 | if (dst->ssid_len) | |
b0a4e7d8 | 1532 | LIBIPW_DEBUG_QOS |
9e8571af JK |
1533 | ("QoS the network %s is QoS supported\n", |
1534 | dst->ssid); | |
1535 | else | |
b0a4e7d8 | 1536 | LIBIPW_DEBUG_QOS |
9e8571af JK |
1537 | ("QoS the network is QoS supported\n"); |
1538 | } | |
1539 | dst->qos_data.active = qos_active; | |
1540 | dst->qos_data.old_param_count = old_param; | |
1541 | ||
b453872c JG |
1542 | /* dst->last_associate is not overwritten */ |
1543 | } | |
1544 | ||
4832843d | 1545 | static inline int is_beacon(__le16 fc) |
3f552bbf JK |
1546 | { |
1547 | return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON); | |
1548 | } | |
1549 | ||
b0a4e7d8 | 1550 | static void libipw_process_probe_response(struct libipw_device |
74079fdc | 1551 | *ieee, struct |
b0a4e7d8 JL |
1552 | libipw_probe_response |
1553 | *beacon, struct libipw_rx_stats | |
0edd5b44 | 1554 | *stats) |
b453872c | 1555 | { |
3f552bbf | 1556 | struct net_device *dev = ieee->dev; |
b0a4e7d8 | 1557 | struct libipw_network network = { |
d1b46b0f ZY |
1558 | .ibss_dfs = NULL, |
1559 | }; | |
b0a4e7d8 JL |
1560 | struct libipw_network *target; |
1561 | struct libipw_network *oldest = NULL; | |
3756162b | 1562 | #ifdef CONFIG_LIBIPW_DEBUG |
b0a4e7d8 | 1563 | struct libipw_info_element *info_element = beacon->info_element; |
b453872c JG |
1564 | #endif |
1565 | unsigned long flags; | |
9387b7ca | 1566 | DECLARE_SSID_BUF(ssid); |
b453872c | 1567 | |
b0a4e7d8 | 1568 | LIBIPW_DEBUG_SCAN("'%s' (%pM" |
8524f59d | 1569 | "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", |
9387b7ca | 1570 | print_ssid(ssid, info_element->data, info_element->len), |
e174961c | 1571 | beacon->header.addr3, |
8524f59d AV |
1572 | (beacon->capability & cpu_to_le16(1 << 0xf)) ? '1' : '0', |
1573 | (beacon->capability & cpu_to_le16(1 << 0xe)) ? '1' : '0', | |
1574 | (beacon->capability & cpu_to_le16(1 << 0xd)) ? '1' : '0', | |
1575 | (beacon->capability & cpu_to_le16(1 << 0xc)) ? '1' : '0', | |
1576 | (beacon->capability & cpu_to_le16(1 << 0xb)) ? '1' : '0', | |
1577 | (beacon->capability & cpu_to_le16(1 << 0xa)) ? '1' : '0', | |
1578 | (beacon->capability & cpu_to_le16(1 << 0x9)) ? '1' : '0', | |
1579 | (beacon->capability & cpu_to_le16(1 << 0x8)) ? '1' : '0', | |
1580 | (beacon->capability & cpu_to_le16(1 << 0x7)) ? '1' : '0', | |
1581 | (beacon->capability & cpu_to_le16(1 << 0x6)) ? '1' : '0', | |
1582 | (beacon->capability & cpu_to_le16(1 << 0x5)) ? '1' : '0', | |
1583 | (beacon->capability & cpu_to_le16(1 << 0x4)) ? '1' : '0', | |
1584 | (beacon->capability & cpu_to_le16(1 << 0x3)) ? '1' : '0', | |
1585 | (beacon->capability & cpu_to_le16(1 << 0x2)) ? '1' : '0', | |
1586 | (beacon->capability & cpu_to_le16(1 << 0x1)) ? '1' : '0', | |
1587 | (beacon->capability & cpu_to_le16(1 << 0x0)) ? '1' : '0'); | |
b453872c | 1588 | |
b0a4e7d8 JL |
1589 | if (libipw_network_init(ieee, beacon, &network, stats)) { |
1590 | LIBIPW_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n", | |
9387b7ca | 1591 | print_ssid(ssid, info_element->data, |
7e272fcf | 1592 | info_element->len), |
e174961c | 1593 | beacon->header.addr3, |
4832843d | 1594 | is_beacon(beacon->header.frame_ctl) ? |
3f552bbf | 1595 | "BEACON" : "PROBE RESPONSE"); |
b453872c JG |
1596 | return; |
1597 | } | |
1598 | ||
1599 | /* The network parsed correctly -- so now we scan our known networks | |
1600 | * to see if we can find it in our list. | |
1601 | * | |
1602 | * NOTE: This search is definitely not optimized. Once its doing | |
1603 | * the "right thing" we'll optimize it for efficiency if | |
1604 | * necessary */ | |
1605 | ||
1606 | /* Search for this entry in the list and update it if it is | |
1607 | * already there. */ | |
1608 | ||
1609 | spin_lock_irqsave(&ieee->lock, flags); | |
1610 | ||
1611 | list_for_each_entry(target, &ieee->network_list, list) { | |
1612 | if (is_same_network(target, &network)) | |
1613 | break; | |
1614 | ||
1615 | if ((oldest == NULL) || | |
c3d72b96 | 1616 | time_before(target->last_scanned, oldest->last_scanned)) |
b453872c JG |
1617 | oldest = target; |
1618 | } | |
1619 | ||
1620 | /* If we didn't find a match, then get a new network slot to initialize | |
1621 | * with this beacon's information */ | |
1622 | if (&target->list == &ieee->network_list) { | |
1623 | if (list_empty(&ieee->network_free_list)) { | |
1624 | /* If there are no more slots, expire the oldest */ | |
1625 | list_del(&oldest->list); | |
1626 | target = oldest; | |
b0a4e7d8 | 1627 | LIBIPW_DEBUG_SCAN("Expired '%s' (%pM) from " |
b453872c | 1628 | "network list.\n", |
9387b7ca | 1629 | print_ssid(ssid, target->ssid, |
7e272fcf | 1630 | target->ssid_len), |
e174961c | 1631 | target->bssid); |
b0a4e7d8 | 1632 | libipw_network_reset(target); |
b453872c JG |
1633 | } else { |
1634 | /* Otherwise just pull from the free list */ | |
1635 | target = list_entry(ieee->network_free_list.next, | |
b0a4e7d8 | 1636 | struct libipw_network, list); |
b453872c JG |
1637 | list_del(ieee->network_free_list.next); |
1638 | } | |
1639 | ||
3756162b | 1640 | #ifdef CONFIG_LIBIPW_DEBUG |
b0a4e7d8 | 1641 | LIBIPW_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n", |
9387b7ca | 1642 | print_ssid(ssid, network.ssid, |
7e272fcf | 1643 | network.ssid_len), |
e174961c | 1644 | network.bssid, |
4832843d | 1645 | is_beacon(beacon->header.frame_ctl) ? |
3f552bbf | 1646 | "BEACON" : "PROBE RESPONSE"); |
b453872c JG |
1647 | #endif |
1648 | memcpy(target, &network, sizeof(*target)); | |
d1b46b0f | 1649 | network.ibss_dfs = NULL; |
b453872c JG |
1650 | list_add_tail(&target->list, &ieee->network_list); |
1651 | } else { | |
b0a4e7d8 | 1652 | LIBIPW_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n", |
9387b7ca | 1653 | print_ssid(ssid, target->ssid, |
7e272fcf | 1654 | target->ssid_len), |
e174961c | 1655 | target->bssid, |
4832843d | 1656 | is_beacon(beacon->header.frame_ctl) ? |
3f552bbf | 1657 | "BEACON" : "PROBE RESPONSE"); |
b453872c | 1658 | update_network(target, &network); |
d1b46b0f | 1659 | network.ibss_dfs = NULL; |
b453872c JG |
1660 | } |
1661 | ||
1662 | spin_unlock_irqrestore(&ieee->lock, flags); | |
3f552bbf | 1663 | |
4832843d | 1664 | if (is_beacon(beacon->header.frame_ctl)) { |
3f552bbf | 1665 | if (ieee->handle_beacon != NULL) |
72df16f1 | 1666 | ieee->handle_beacon(dev, beacon, target); |
3f552bbf JK |
1667 | } else { |
1668 | if (ieee->handle_probe_response != NULL) | |
72df16f1 | 1669 | ieee->handle_probe_response(dev, beacon, target); |
3f552bbf | 1670 | } |
b453872c JG |
1671 | } |
1672 | ||
b0a4e7d8 JL |
1673 | void libipw_rx_mgt(struct libipw_device *ieee, |
1674 | struct libipw_hdr_4addr *header, | |
1675 | struct libipw_rx_stats *stats) | |
b453872c | 1676 | { |
fd27817c | 1677 | switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) { |
b453872c | 1678 | case IEEE80211_STYPE_ASSOC_RESP: |
b0a4e7d8 | 1679 | LIBIPW_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n", |
fd27817c JK |
1680 | WLAN_FC_GET_STYPE(le16_to_cpu |
1681 | (header->frame_ctl))); | |
b0a4e7d8 JL |
1682 | libipw_handle_assoc_resp(ieee, |
1683 | (struct libipw_assoc_response *) | |
9e8571af | 1684 | header, stats); |
b453872c JG |
1685 | break; |
1686 | ||
1687 | case IEEE80211_STYPE_REASSOC_RESP: | |
b0a4e7d8 | 1688 | LIBIPW_DEBUG_MGMT("received REASSOCIATION RESPONSE (%d)\n", |
fd27817c JK |
1689 | WLAN_FC_GET_STYPE(le16_to_cpu |
1690 | (header->frame_ctl))); | |
b453872c JG |
1691 | break; |
1692 | ||
42c94e43 | 1693 | case IEEE80211_STYPE_PROBE_REQ: |
b0a4e7d8 | 1694 | LIBIPW_DEBUG_MGMT("received auth (%d)\n", |
42c94e43 JK |
1695 | WLAN_FC_GET_STYPE(le16_to_cpu |
1696 | (header->frame_ctl))); | |
1697 | ||
1698 | if (ieee->handle_probe_request != NULL) | |
1699 | ieee->handle_probe_request(ieee->dev, | |
1700 | (struct | |
b0a4e7d8 | 1701 | libipw_probe_request *) |
42c94e43 JK |
1702 | header, stats); |
1703 | break; | |
1704 | ||
b453872c | 1705 | case IEEE80211_STYPE_PROBE_RESP: |
b0a4e7d8 | 1706 | LIBIPW_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", |
fd27817c JK |
1707 | WLAN_FC_GET_STYPE(le16_to_cpu |
1708 | (header->frame_ctl))); | |
b0a4e7d8 JL |
1709 | LIBIPW_DEBUG_SCAN("Probe response\n"); |
1710 | libipw_process_probe_response(ieee, | |
0edd5b44 | 1711 | (struct |
b0a4e7d8 | 1712 | libipw_probe_response *) |
0edd5b44 | 1713 | header, stats); |
b453872c JG |
1714 | break; |
1715 | ||
1716 | case IEEE80211_STYPE_BEACON: | |
b0a4e7d8 | 1717 | LIBIPW_DEBUG_MGMT("received BEACON (%d)\n", |
fd27817c JK |
1718 | WLAN_FC_GET_STYPE(le16_to_cpu |
1719 | (header->frame_ctl))); | |
b0a4e7d8 JL |
1720 | LIBIPW_DEBUG_SCAN("Beacon\n"); |
1721 | libipw_process_probe_response(ieee, | |
0edd5b44 | 1722 | (struct |
b0a4e7d8 | 1723 | libipw_probe_response *) |
0edd5b44 | 1724 | header, stats); |
b453872c | 1725 | break; |
3f552bbf JK |
1726 | case IEEE80211_STYPE_AUTH: |
1727 | ||
b0a4e7d8 | 1728 | LIBIPW_DEBUG_MGMT("received auth (%d)\n", |
3f552bbf JK |
1729 | WLAN_FC_GET_STYPE(le16_to_cpu |
1730 | (header->frame_ctl))); | |
1731 | ||
1732 | if (ieee->handle_auth != NULL) | |
1733 | ieee->handle_auth(ieee->dev, | |
b0a4e7d8 | 1734 | (struct libipw_auth *)header); |
3f552bbf JK |
1735 | break; |
1736 | ||
1737 | case IEEE80211_STYPE_DISASSOC: | |
1738 | if (ieee->handle_disassoc != NULL) | |
1739 | ieee->handle_disassoc(ieee->dev, | |
b0a4e7d8 | 1740 | (struct libipw_disassoc *) |
3f552bbf JK |
1741 | header); |
1742 | break; | |
b453872c | 1743 | |
d1b46b0f | 1744 | case IEEE80211_STYPE_ACTION: |
b0a4e7d8 | 1745 | LIBIPW_DEBUG_MGMT("ACTION\n"); |
d1b46b0f ZY |
1746 | if (ieee->handle_action) |
1747 | ieee->handle_action(ieee->dev, | |
b0a4e7d8 | 1748 | (struct libipw_action *) |
d1b46b0f ZY |
1749 | header, stats); |
1750 | break; | |
1751 | ||
2f633db5 | 1752 | case IEEE80211_STYPE_REASSOC_REQ: |
b0a4e7d8 | 1753 | LIBIPW_DEBUG_MGMT("received reassoc (%d)\n", |
2f633db5 LF |
1754 | WLAN_FC_GET_STYPE(le16_to_cpu |
1755 | (header->frame_ctl))); | |
1756 | ||
b0a4e7d8 | 1757 | LIBIPW_DEBUG_MGMT("%s: LIBIPW_REASSOC_REQ received\n", |
7736b5bd | 1758 | ieee->dev->name); |
2f633db5 LF |
1759 | if (ieee->handle_reassoc_request != NULL) |
1760 | ieee->handle_reassoc_request(ieee->dev, | |
b0a4e7d8 | 1761 | (struct libipw_reassoc_request *) |
2f633db5 LF |
1762 | header); |
1763 | break; | |
1764 | ||
1765 | case IEEE80211_STYPE_ASSOC_REQ: | |
b0a4e7d8 | 1766 | LIBIPW_DEBUG_MGMT("received assoc (%d)\n", |
2f633db5 LF |
1767 | WLAN_FC_GET_STYPE(le16_to_cpu |
1768 | (header->frame_ctl))); | |
1769 | ||
b0a4e7d8 | 1770 | LIBIPW_DEBUG_MGMT("%s: LIBIPW_ASSOC_REQ received\n", |
7736b5bd | 1771 | ieee->dev->name); |
2f633db5 LF |
1772 | if (ieee->handle_assoc_request != NULL) |
1773 | ieee->handle_assoc_request(ieee->dev); | |
1774 | break; | |
1775 | ||
31b59eae | 1776 | case IEEE80211_STYPE_DEAUTH: |
b0a4e7d8 | 1777 | LIBIPW_DEBUG_MGMT("DEAUTH\n"); |
31b59eae | 1778 | if (ieee->handle_deauth != NULL) |
d1b46b0f | 1779 | ieee->handle_deauth(ieee->dev, |
b0a4e7d8 | 1780 | (struct libipw_deauth *) |
31b59eae JK |
1781 | header); |
1782 | break; | |
b453872c | 1783 | default: |
b0a4e7d8 | 1784 | LIBIPW_DEBUG_MGMT("received UNKNOWN (%d)\n", |
fd27817c JK |
1785 | WLAN_FC_GET_STYPE(le16_to_cpu |
1786 | (header->frame_ctl))); | |
b0a4e7d8 | 1787 | LIBIPW_DEBUG_MGMT("%s: Unknown management packet: %d\n", |
7736b5bd ZY |
1788 | ieee->dev->name, |
1789 | WLAN_FC_GET_STYPE(le16_to_cpu | |
1790 | (header->frame_ctl))); | |
b453872c JG |
1791 | break; |
1792 | } | |
1793 | } | |
1794 | ||
b0a4e7d8 JL |
1795 | EXPORT_SYMBOL_GPL(libipw_rx_any); |
1796 | EXPORT_SYMBOL(libipw_rx_mgt); | |
1797 | EXPORT_SYMBOL(libipw_rx); |