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ieee80211_input.c (121179) ieee80211_input.c (121180)
1/*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 17 unchanged lines hidden (view full) ---

26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 17 unchanged lines hidden (view full) ---

26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_input.c 121179 2003-10-17 22:15:26Z sam $");
34__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_input.c 121180 2003-10-17 23:15:30Z sam $");
35
36#include "opt_inet.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/malloc.h>
42#include <sys/kernel.h>

--- 65 unchanged lines hidden (view full) ---

108
109 wh = mtod(m, struct ieee80211_frame *);
110 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
111 IEEE80211_FC0_VERSION_0) {
112 if (ifp->if_flags & IFF_DEBUG)
113 if_printf(ifp, "receive packet with wrong version: %x\n",
114 wh->i_fc[0]);
115 ieee80211_unref_node(&ni);
35
36#include "opt_inet.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/malloc.h>
42#include <sys/kernel.h>

--- 65 unchanged lines hidden (view full) ---

108
109 wh = mtod(m, struct ieee80211_frame *);
110 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
111 IEEE80211_FC0_VERSION_0) {
112 if (ifp->if_flags & IFF_DEBUG)
113 if_printf(ifp, "receive packet with wrong version: %x\n",
114 wh->i_fc[0]);
115 ieee80211_unref_node(&ni);
116 ic->ic_stats.is_rx_badversion++;
116 goto err;
117 }
118
119 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
120 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
121 /*
122 * NB: We are not yet prepared to handle control frames,
123 * but permitting drivers to send them to us allows
124 * them to go through bpf tapping at the 802.11 layer.
125 */
126 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
117 goto err;
118 }
119
120 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
121 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
122 /*
123 * NB: We are not yet prepared to handle control frames,
124 * but permitting drivers to send them to us allows
125 * them to go through bpf tapping at the 802.11 layer.
126 */
127 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
128 /* XXX statistic */
127 IEEE80211_DPRINTF2(("%s: frame too short, len %u\n",
128 __func__, m->m_pkthdr.len));
129 IEEE80211_DPRINTF2(("%s: frame too short, len %u\n",
130 __func__, m->m_pkthdr.len));
129 /* XXX statistic */
131 ic->ic_stats.is_rx_tooshort++;
130 goto out; /* XXX */
131 }
132 if (ic->ic_state != IEEE80211_S_SCAN) {
133 switch (ic->ic_opmode) {
134 case IEEE80211_M_STA:
135 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) {
132 goto out; /* XXX */
133 }
134 if (ic->ic_state != IEEE80211_S_SCAN) {
135 switch (ic->ic_opmode) {
136 case IEEE80211_M_STA:
137 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) {
138 /* not interested in */
136 IEEE80211_DPRINTF2(("%s: discard frame from "
137 "bss %s\n", __func__,
138 ether_sprintf(wh->i_addr2)));
139 IEEE80211_DPRINTF2(("%s: discard frame from "
140 "bss %s\n", __func__,
141 ether_sprintf(wh->i_addr2)));
139 /* not interested in */
142 ic->ic_stats.is_rx_wrongbss++;
140 goto out;
141 }
142 break;
143 case IEEE80211_M_IBSS:
144 case IEEE80211_M_AHDEMO:
145 case IEEE80211_M_HOSTAP:
146 if (dir == IEEE80211_FC1_DIR_NODS)
147 bssid = wh->i_addr3;
148 else
149 bssid = wh->i_addr1;
150 if (!IEEE80211_ADDR_EQ(bssid, ic->ic_bss->ni_bssid) &&
151 !IEEE80211_ADDR_EQ(bssid, ifp->if_broadcastaddr)) {
152 /* not interested in */
153 IEEE80211_DPRINTF2(("%s: discard frame from "
154 "bss %s\n", __func__,
155 ether_sprintf(bssid)));
143 goto out;
144 }
145 break;
146 case IEEE80211_M_IBSS:
147 case IEEE80211_M_AHDEMO:
148 case IEEE80211_M_HOSTAP:
149 if (dir == IEEE80211_FC1_DIR_NODS)
150 bssid = wh->i_addr3;
151 else
152 bssid = wh->i_addr1;
153 if (!IEEE80211_ADDR_EQ(bssid, ic->ic_bss->ni_bssid) &&
154 !IEEE80211_ADDR_EQ(bssid, ifp->if_broadcastaddr)) {
155 /* not interested in */
156 IEEE80211_DPRINTF2(("%s: discard frame from "
157 "bss %s\n", __func__,
158 ether_sprintf(bssid)));
159 ic->ic_stats.is_rx_wrongbss++;
156 goto out;
157 }
158 break;
159 case IEEE80211_M_MONITOR:
160 goto out;
161 default:
162 /* XXX catch bad values */
163 break;
164 }
165 ni->ni_rssi = rssi;
166 ni->ni_rstamp = rstamp;
167 rxseq = ni->ni_rxseq;
168 ni->ni_rxseq =
169 le16toh(*(u_int16_t *)wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT;
170 /* TODO: fragment */
171 if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
172 rxseq == ni->ni_rxseq) {
173 /* duplicate, silently discarded */
160 goto out;
161 }
162 break;
163 case IEEE80211_M_MONITOR:
164 goto out;
165 default:
166 /* XXX catch bad values */
167 break;
168 }
169 ni->ni_rssi = rssi;
170 ni->ni_rstamp = rstamp;
171 rxseq = ni->ni_rxseq;
172 ni->ni_rxseq =
173 le16toh(*(u_int16_t *)wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT;
174 /* TODO: fragment */
175 if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
176 rxseq == ni->ni_rxseq) {
177 /* duplicate, silently discarded */
178 ic->ic_stats.is_rx_dup++; /* XXX per-station stat */
174 goto out;
175 }
176 ni->ni_inact = 0;
177 }
178
179 switch (type) {
180 case IEEE80211_FC0_TYPE_DATA:
181 switch (ic->ic_opmode) {
182 case IEEE80211_M_STA:
179 goto out;
180 }
181 ni->ni_inact = 0;
182 }
183
184 switch (type) {
185 case IEEE80211_FC0_TYPE_DATA:
186 switch (ic->ic_opmode) {
187 case IEEE80211_M_STA:
183 if (dir != IEEE80211_FC1_DIR_FROMDS)
188 if (dir != IEEE80211_FC1_DIR_FROMDS) {
189 ic->ic_stats.is_rx_wrongdir++;
184 goto out;
190 goto out;
191 }
185 if ((ifp->if_flags & IFF_SIMPLEX) &&
186 IEEE80211_IS_MULTICAST(wh->i_addr1) &&
187 IEEE80211_ADDR_EQ(wh->i_addr3, ic->ic_myaddr)) {
188 /*
189 * In IEEE802.11 network, multicast packet
190 * sent from me is broadcasted from AP.
191 * It should be silently discarded for
192 * SIMPLEX interface.
193 */
192 if ((ifp->if_flags & IFF_SIMPLEX) &&
193 IEEE80211_IS_MULTICAST(wh->i_addr1) &&
194 IEEE80211_ADDR_EQ(wh->i_addr3, ic->ic_myaddr)) {
195 /*
196 * In IEEE802.11 network, multicast packet
197 * sent from me is broadcasted from AP.
198 * It should be silently discarded for
199 * SIMPLEX interface.
200 */
201 ic->ic_stats.is_rx_mcastecho++;
194 goto out;
195 }
196 break;
197 case IEEE80211_M_IBSS:
198 case IEEE80211_M_AHDEMO:
202 goto out;
203 }
204 break;
205 case IEEE80211_M_IBSS:
206 case IEEE80211_M_AHDEMO:
199 if (dir != IEEE80211_FC1_DIR_NODS)
207 if (dir != IEEE80211_FC1_DIR_NODS) {
208 ic->ic_stats.is_rx_wrongdir++;
200 goto out;
209 goto out;
210 }
201 break;
202 case IEEE80211_M_HOSTAP:
211 break;
212 case IEEE80211_M_HOSTAP:
203 if (dir != IEEE80211_FC1_DIR_TODS)
213 if (dir != IEEE80211_FC1_DIR_TODS) {
214 ic->ic_stats.is_rx_wrongdir++;
204 goto out;
215 goto out;
216 }
205 /* check if source STA is associated */
206 if (ni == ic->ic_bss) {
207 IEEE80211_DPRINTF(("%s: data from unknown src "
208 "%s\n", __func__,
209 ether_sprintf(wh->i_addr2)));
210 /* NB: caller deals with reference */
211 ni = ieee80211_dup_bss(ic, wh->i_addr2);
212 if (ni != NULL) {
213 IEEE80211_SEND_MGMT(ic, ni,
214 IEEE80211_FC0_SUBTYPE_DEAUTH,
215 IEEE80211_REASON_NOT_AUTHED);
216 ieee80211_free_node(ic, ni);
217 }
217 /* check if source STA is associated */
218 if (ni == ic->ic_bss) {
219 IEEE80211_DPRINTF(("%s: data from unknown src "
220 "%s\n", __func__,
221 ether_sprintf(wh->i_addr2)));
222 /* NB: caller deals with reference */
223 ni = ieee80211_dup_bss(ic, wh->i_addr2);
224 if (ni != NULL) {
225 IEEE80211_SEND_MGMT(ic, ni,
226 IEEE80211_FC0_SUBTYPE_DEAUTH,
227 IEEE80211_REASON_NOT_AUTHED);
228 ieee80211_free_node(ic, ni);
229 }
230 ic->ic_stats.is_rx_notassoc++;
218 goto err;
219 }
220 if (ni->ni_associd == 0) {
221 IEEE80211_DPRINTF(("ieee80211_input: "
222 "data from unassoc src %s\n",
223 ether_sprintf(wh->i_addr2)));
224 IEEE80211_SEND_MGMT(ic, ni,
225 IEEE80211_FC0_SUBTYPE_DISASSOC,
226 IEEE80211_REASON_NOT_ASSOCED);
227 ieee80211_unref_node(&ni);
231 goto err;
232 }
233 if (ni->ni_associd == 0) {
234 IEEE80211_DPRINTF(("ieee80211_input: "
235 "data from unassoc src %s\n",
236 ether_sprintf(wh->i_addr2)));
237 IEEE80211_SEND_MGMT(ic, ni,
238 IEEE80211_FC0_SUBTYPE_DISASSOC,
239 IEEE80211_REASON_NOT_ASSOCED);
240 ieee80211_unref_node(&ni);
241 ic->ic_stats.is_rx_notassoc++;
228 goto err;
229 }
230 break;
231 case IEEE80211_M_MONITOR:
232 break;
233 }
234 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
235 if (ic->ic_flags & IEEE80211_F_WEPON) {
236 m = ieee80211_wep_crypt(ifp, m, 0);
242 goto err;
243 }
244 break;
245 case IEEE80211_M_MONITOR:
246 break;
247 }
248 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
249 if (ic->ic_flags & IEEE80211_F_WEPON) {
250 m = ieee80211_wep_crypt(ifp, m, 0);
237 if (m == NULL)
251 if (m == NULL) {
252 ic->ic_stats.is_rx_wepfail++;
238 goto err;
253 goto err;
254 }
239 wh = mtod(m, struct ieee80211_frame *);
255 wh = mtod(m, struct ieee80211_frame *);
240 } else
256 } else {
257 ic->ic_stats.is_rx_nowep++;
241 goto out;
258 goto out;
259 }
242 }
243 /* copy to listener after decrypt */
244 if (ic->ic_rawbpf)
245 bpf_mtap(ic->ic_rawbpf, m);
246 m = ieee80211_decap(ifp, m);
260 }
261 /* copy to listener after decrypt */
262 if (ic->ic_rawbpf)
263 bpf_mtap(ic->ic_rawbpf, m);
264 m = ieee80211_decap(ifp, m);
247 if (m == NULL)
265 if (m == NULL) {
266 ic->ic_stats.is_rx_decap++;
248 goto err;
267 goto err;
268 }
249 ifp->if_ipackets++;
250
251 /* perform as a bridge within the AP */
252 m1 = NULL;
253 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
254 eh = mtod(m, struct ether_header *);
255 if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
256 m1 = m_copypacket(m, M_DONTWAIT);

--- 24 unchanged lines hidden (view full) ---

281 ifp->if_obytes += len;
282 }
283 }
284 if (m != NULL)
285 (*ifp->if_input)(ifp, m);
286 return;
287
288 case IEEE80211_FC0_TYPE_MGT:
269 ifp->if_ipackets++;
270
271 /* perform as a bridge within the AP */
272 m1 = NULL;
273 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
274 eh = mtod(m, struct ether_header *);
275 if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
276 m1 = m_copypacket(m, M_DONTWAIT);

--- 24 unchanged lines hidden (view full) ---

301 ifp->if_obytes += len;
302 }
303 }
304 if (m != NULL)
305 (*ifp->if_input)(ifp, m);
306 return;
307
308 case IEEE80211_FC0_TYPE_MGT:
289 if (dir != IEEE80211_FC1_DIR_NODS)
309 if (dir != IEEE80211_FC1_DIR_NODS) {
310 ic->ic_stats.is_rx_wrongdir++;
290 goto err;
311 goto err;
291 if (ic->ic_opmode == IEEE80211_M_AHDEMO)
312 }
313 if (ic->ic_opmode == IEEE80211_M_AHDEMO) {
314 ic->ic_stats.is_rx_ahdemo_mgt++;
292 goto out;
315 goto out;
316 }
293 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
294
295 /* drop frames without interest */
296 if (ic->ic_state == IEEE80211_S_SCAN) {
297 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
317 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
318
319 /* drop frames without interest */
320 if (ic->ic_state == IEEE80211_S_SCAN) {
321 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
298 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
322 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) {
323 ic->ic_stats.is_rx_mgtdiscard++;
299 goto out;
324 goto out;
325 }
300 } else {
301 if (ic->ic_opmode != IEEE80211_M_IBSS &&
326 } else {
327 if (ic->ic_opmode != IEEE80211_M_IBSS &&
302 subtype == IEEE80211_FC0_SUBTYPE_BEACON)
328 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
329 ic->ic_stats.is_rx_mgtdiscard++;
303 goto out;
330 goto out;
331 }
304 }
305
306 if (ifp->if_flags & IFF_DEBUG) {
307 /* avoid to print too many frames */
308 int doprint = 0;
309
310 switch (subtype) {
311 case IEEE80211_FC0_SUBTYPE_BEACON:

--- 19 unchanged lines hidden (view full) ---

331 }
332 if (ic->ic_rawbpf)
333 bpf_mtap(ic->ic_rawbpf, m);
334 (*ic->ic_recv_mgmt)(ic, m, ni, subtype, rssi, rstamp);
335 m_freem(m);
336 return;
337
338 case IEEE80211_FC0_TYPE_CTL:
332 }
333
334 if (ifp->if_flags & IFF_DEBUG) {
335 /* avoid to print too many frames */
336 int doprint = 0;
337
338 switch (subtype) {
339 case IEEE80211_FC0_SUBTYPE_BEACON:

--- 19 unchanged lines hidden (view full) ---

359 }
360 if (ic->ic_rawbpf)
361 bpf_mtap(ic->ic_rawbpf, m);
362 (*ic->ic_recv_mgmt)(ic, m, ni, subtype, rssi, rstamp);
363 m_freem(m);
364 return;
365
366 case IEEE80211_FC0_TYPE_CTL:
367 ic->ic_stats.is_rx_ctl++;
339 goto out;
340 default:
341 IEEE80211_DPRINTF(("%s: bad type %x\n", __func__, type));
342 /* should not come here */
343 break;
344 }
345 err:
346 ifp->if_ierrors++;

--- 123 unchanged lines hidden (view full) ---

470 * Tack on 11g extended supported rate element.
471 */
472 nxrates = xrates[1];
473 if (rs->rs_nrates + nxrates > IEEE80211_RATE_MAXSIZE) {
474 nxrates = IEEE80211_RATE_MAXSIZE - rs->rs_nrates;
475 IEEE80211_DPRINTF(("%s: extended rate set too large;"
476 " only using %u of %u rates\n",
477 __func__, nxrates, xrates[1]));
368 goto out;
369 default:
370 IEEE80211_DPRINTF(("%s: bad type %x\n", __func__, type));
371 /* should not come here */
372 break;
373 }
374 err:
375 ifp->if_ierrors++;

--- 123 unchanged lines hidden (view full) ---

499 * Tack on 11g extended supported rate element.
500 */
501 nxrates = xrates[1];
502 if (rs->rs_nrates + nxrates > IEEE80211_RATE_MAXSIZE) {
503 nxrates = IEEE80211_RATE_MAXSIZE - rs->rs_nrates;
504 IEEE80211_DPRINTF(("%s: extended rate set too large;"
505 " only using %u of %u rates\n",
506 __func__, nxrates, xrates[1]));
507 ic->ic_stats.is_rx_rstoobig++;
478 }
479 memcpy(rs->rs_rates + rs->rs_nrates, xrates+2, nxrates);
480 rs->rs_nrates += nxrates;
481 }
482 return ieee80211_fix_rate(ic, ni, flags);
483}
484
508 }
509 memcpy(rs->rs_rates + rs->rs_nrates, xrates+2, nxrates);
510 rs->rs_nrates += nxrates;
511 }
512 return ieee80211_fix_rate(ic, ni, flags);
513}
514
485/* XXX statistics */
486/* Verify the existence and length of __elem or get out. */
487#define IEEE80211_VERIFY_ELEMENT(__elem, __maxlen) do { \
488 if ((__elem) == NULL) { \
489 IEEE80211_DPRINTF(("%s: no " #__elem "in %s frame\n", \
490 __func__, ieee80211_mgt_subtype_name[subtype >> \
491 IEEE80211_FC0_SUBTYPE_SHIFT])); \
515/* Verify the existence and length of __elem or get out. */
516#define IEEE80211_VERIFY_ELEMENT(__elem, __maxlen) do { \
517 if ((__elem) == NULL) { \
518 IEEE80211_DPRINTF(("%s: no " #__elem "in %s frame\n", \
519 __func__, ieee80211_mgt_subtype_name[subtype >> \
520 IEEE80211_FC0_SUBTYPE_SHIFT])); \
521 ic->ic_stats.is_rx_elem_missing++; \
492 return; \
493 } \
494 if ((__elem)[1] > (__maxlen)) { \
495 IEEE80211_DPRINTF(("%s: bad " #__elem " len %d in %s " \
496 "frame from %s\n", __func__, (__elem)[1], \
497 ieee80211_mgt_subtype_name[subtype >> \
498 IEEE80211_FC0_SUBTYPE_SHIFT], \
499 ether_sprintf(wh->i_addr2))); \
522 return; \
523 } \
524 if ((__elem)[1] > (__maxlen)) { \
525 IEEE80211_DPRINTF(("%s: bad " #__elem " len %d in %s " \
526 "frame from %s\n", __func__, (__elem)[1], \
527 ieee80211_mgt_subtype_name[subtype >> \
528 IEEE80211_FC0_SUBTYPE_SHIFT], \
529 ether_sprintf(wh->i_addr2))); \
530 ic->ic_stats.is_rx_elem_toobig++; \
500 return; \
501 } \
502} while (0)
503
504#define IEEE80211_VERIFY_LENGTH(_len, _minlen) do { \
505 if ((_len) < (_minlen)) { \
506 IEEE80211_DPRINTF(("%s: %s frame too short from %s\n", \
507 __func__, \
508 ieee80211_mgt_subtype_name[subtype >> \
509 IEEE80211_FC0_SUBTYPE_SHIFT], \
510 ether_sprintf(wh->i_addr2))); \
531 return; \
532 } \
533} while (0)
534
535#define IEEE80211_VERIFY_LENGTH(_len, _minlen) do { \
536 if ((_len) < (_minlen)) { \
537 IEEE80211_DPRINTF(("%s: %s frame too short from %s\n", \
538 __func__, \
539 ieee80211_mgt_subtype_name[subtype >> \
540 IEEE80211_FC0_SUBTYPE_SHIFT], \
541 ether_sprintf(wh->i_addr2))); \
542 ic->ic_stats.is_rx_elem_toosmall++; \
511 return; \
512 } \
513} while (0)
514
515void
516ieee80211_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0,
517 struct ieee80211_node *ni,
518 int subtype, int rssi, u_int32_t rstamp)

--- 74 unchanged lines hidden (view full) ---

593 case IEEE80211_ELEMID_XRATES:
594 xrates = frm;
595 break;
596 case IEEE80211_ELEMID_ERP:
597 if (frm[1] != 1) {
598 IEEE80211_DPRINTF(("%s: invalid ERP "
599 "element; length %u, expecting "
600 "1\n", __func__, frm[1]));
543 return; \
544 } \
545} while (0)
546
547void
548ieee80211_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0,
549 struct ieee80211_node *ni,
550 int subtype, int rssi, u_int32_t rstamp)

--- 74 unchanged lines hidden (view full) ---

625 case IEEE80211_ELEMID_XRATES:
626 xrates = frm;
627 break;
628 case IEEE80211_ELEMID_ERP:
629 if (frm[1] != 1) {
630 IEEE80211_DPRINTF(("%s: invalid ERP "
631 "element; length %u, expecting "
632 "1\n", __func__, frm[1]));
633 ic->ic_stats.is_rx_elem_toobig++;
601 break;
602 }
603 erp = frm[2];
604 break;
605 default:
606 IEEE80211_DPRINTF2(("%s: element id %u/len %u "
607 "ignored\n", __func__, *frm, frm[1]));
634 break;
635 }
636 erp = frm[2];
637 break;
638 default:
639 IEEE80211_DPRINTF2(("%s: element id %u/len %u "
640 "ignored\n", __func__, *frm, frm[1]));
641 ic->ic_stats.is_rx_elem_unknown++;
608 break;
609 }
610 frm += frm[1] + 2;
611 }
612 IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE);
613 IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN);
614 if (
615#if IEEE80211_CHAN_MAX < 255
616 chan > IEEE80211_CHAN_MAX ||
617#endif
618 isclr(ic->ic_chan_active, chan)) {
619 IEEE80211_DPRINTF(("%s: ignore %s with invalid channel "
620 "%u\n", __func__,
621 ISPROBE(subtype) ? "probe response" : "beacon",
622 chan));
642 break;
643 }
644 frm += frm[1] + 2;
645 }
646 IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE);
647 IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN);
648 if (
649#if IEEE80211_CHAN_MAX < 255
650 chan > IEEE80211_CHAN_MAX ||
651#endif
652 isclr(ic->ic_chan_active, chan)) {
653 IEEE80211_DPRINTF(("%s: ignore %s with invalid channel "
654 "%u\n", __func__,
655 ISPROBE(subtype) ? "probe response" : "beacon",
656 chan));
657 ic->ic_stats.is_rx_badchan++;
623 return;
624 }
625 if (chan != bchan) {
626 /*
627 * Frame was received on a channel different from the
628 * one indicated in the DS/FH params element id;
629 * silently discard it.
630 *
631 * NB: this can happen due to signal leakage.
632 */
633 IEEE80211_DPRINTF(("%s: ignore %s on channel %u marked "
634 "for channel %u\n", __func__,
635 ISPROBE(subtype) ? "probe response" : "beacon",
636 bchan, chan));
658 return;
659 }
660 if (chan != bchan) {
661 /*
662 * Frame was received on a channel different from the
663 * one indicated in the DS/FH params element id;
664 * silently discard it.
665 *
666 * NB: this can happen due to signal leakage.
667 */
668 IEEE80211_DPRINTF(("%s: ignore %s on channel %u marked "
669 "for channel %u\n", __func__,
670 ISPROBE(subtype) ? "probe response" : "beacon",
671 bchan, chan));
637 /* XXX statistic */
672 ic->ic_stats.is_rx_chanmismatch++;
638 return;
639 }
640
641 /*
642 * Use mac and channel for lookup so we collect all
643 * potential AP's when scanning. Otherwise we may
644 * see the same AP on multiple channels and will only
645 * record the last one. We could filter APs here based

--- 18 unchanged lines hidden (view full) ---

664 le16toh(*(u_int16_t *)bintval), erp);
665 if (country)
666 printf("%s: country info %*D\n",
667 __func__, country[1], country+2, " ");
668 }
669#endif
670 if (ni == NULL) {
671 ni = ieee80211_alloc_node(ic, wh->i_addr2);
673 return;
674 }
675
676 /*
677 * Use mac and channel for lookup so we collect all
678 * potential AP's when scanning. Otherwise we may
679 * see the same AP on multiple channels and will only
680 * record the last one. We could filter APs here based

--- 18 unchanged lines hidden (view full) ---

699 le16toh(*(u_int16_t *)bintval), erp);
700 if (country)
701 printf("%s: country info %*D\n",
702 __func__, country[1], country+2, " ");
703 }
704#endif
705 if (ni == NULL) {
706 ni = ieee80211_alloc_node(ic, wh->i_addr2);
672 if (ni == NULL)
707 if (ni == NULL) {
708 ic->ic_stats.is_rx_nodealloc++;
673 return;
709 return;
710 }
674 ni->ni_esslen = ssid[1];
675 memset(ni->ni_essid, 0, sizeof(ni->ni_essid));
676 memcpy(ni->ni_essid, ssid + 2, ssid[1]);
677 } else if (ssid[1] != 0 && ISPROBE(subtype)) {
678 /*
679 * Update ESSID at probe response to adopt hidden AP by
680 * Lucent/Cisco, which announces null ESSID in beacon.
681 */

--- 54 unchanged lines hidden (view full) ---

736 memcmp(ssid + 2, ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen) != 0)) {
737#ifdef IEEE80211_DEBUG
738 if (ieee80211_debug) {
739 printf("%s: ssid unmatch ", __func__);
740 ieee80211_print_essid(ssid + 2, ssid[1]);
741 printf(" from %s\n", ether_sprintf(wh->i_addr2));
742 }
743#endif
711 ni->ni_esslen = ssid[1];
712 memset(ni->ni_essid, 0, sizeof(ni->ni_essid));
713 memcpy(ni->ni_essid, ssid + 2, ssid[1]);
714 } else if (ssid[1] != 0 && ISPROBE(subtype)) {
715 /*
716 * Update ESSID at probe response to adopt hidden AP by
717 * Lucent/Cisco, which announces null ESSID in beacon.
718 */

--- 54 unchanged lines hidden (view full) ---

773 memcmp(ssid + 2, ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen) != 0)) {
774#ifdef IEEE80211_DEBUG
775 if (ieee80211_debug) {
776 printf("%s: ssid unmatch ", __func__);
777 ieee80211_print_essid(ssid + 2, ssid[1]);
778 printf(" from %s\n", ether_sprintf(wh->i_addr2));
779 }
780#endif
781 ic->ic_stats.is_rx_ssidmismatch++;
744 return;
745 }
746
747 if (ni == ic->ic_bss) {
748 ni = ieee80211_dup_bss(ic, wh->i_addr2);
782 return;
783 }
784
785 if (ni == ic->ic_bss) {
786 ni = ieee80211_dup_bss(ic, wh->i_addr2);
749 if (ni == NULL)
787 if (ni == NULL) {
788 ic->ic_stats.is_rx_nodealloc++;
750 return;
789 return;
790 }
751 IEEE80211_DPRINTF(("%s: new req from %s\n",
752 __func__, ether_sprintf(wh->i_addr2)));
753 allocbs = 1;
754 } else
755 allocbs = 0;
756 ni->ni_rssi = rssi;
757 ni->ni_rstamp = rstamp;
758 rate = ieee80211_setup_rates(ic, ni, rates, xrates,

--- 28 unchanged lines hidden (view full) ---

787 IEEE80211_VERIFY_LENGTH(efrm - frm, 6);
788 algo = le16toh(*(u_int16_t *)frm);
789 seq = le16toh(*(u_int16_t *)(frm + 2));
790 status = le16toh(*(u_int16_t *)(frm + 4));
791 if (algo != IEEE80211_AUTH_ALG_OPEN) {
792 /* TODO: shared key auth */
793 IEEE80211_DPRINTF(("%s: unsupported auth %d from %s\n",
794 __func__, algo, ether_sprintf(wh->i_addr2)));
791 IEEE80211_DPRINTF(("%s: new req from %s\n",
792 __func__, ether_sprintf(wh->i_addr2)));
793 allocbs = 1;
794 } else
795 allocbs = 0;
796 ni->ni_rssi = rssi;
797 ni->ni_rstamp = rstamp;
798 rate = ieee80211_setup_rates(ic, ni, rates, xrates,

--- 28 unchanged lines hidden (view full) ---

827 IEEE80211_VERIFY_LENGTH(efrm - frm, 6);
828 algo = le16toh(*(u_int16_t *)frm);
829 seq = le16toh(*(u_int16_t *)(frm + 2));
830 status = le16toh(*(u_int16_t *)(frm + 4));
831 if (algo != IEEE80211_AUTH_ALG_OPEN) {
832 /* TODO: shared key auth */
833 IEEE80211_DPRINTF(("%s: unsupported auth %d from %s\n",
834 __func__, algo, ether_sprintf(wh->i_addr2)));
835 ic->ic_stats.is_rx_auth_unsupported++;
795 return;
796 }
836 return;
837 }
838 if (ic->ic_state != IEEE80211_S_RUN) {
839 IEEE80211_DPRINTF(("%s: discard auth from %s; "
840 "state %u\n", __func__,
841 ether_sprintf(wh->i_addr2), ic->ic_state));
842 ic->ic_stats.is_rx_bad_auth++;
843 break;
844 }
845 if (seq != (ic->ic_opmode == IEEE80211_M_STA ? 2 : 1)) {
846 IEEE80211_DPRINTF(("%s: discard auth from %s; seq %u\n",
847 __func__, ether_sprintf(wh->i_addr2), seq));
848 ic->ic_stats.is_rx_bad_auth++;
849 break;
850 }
797 switch (ic->ic_opmode) {
798 case IEEE80211_M_IBSS:
851 switch (ic->ic_opmode) {
852 case IEEE80211_M_IBSS:
799 if (ic->ic_state != IEEE80211_S_RUN || seq != 1)
800 return;
801 ieee80211_new_state(ic, IEEE80211_S_AUTH,
802 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
803 break;
804
805 case IEEE80211_M_AHDEMO:
806 /* should not come here */
807 break;
808
809 case IEEE80211_M_HOSTAP:
853 ieee80211_new_state(ic, IEEE80211_S_AUTH,
854 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
855 break;
856
857 case IEEE80211_M_AHDEMO:
858 /* should not come here */
859 break;
860
861 case IEEE80211_M_HOSTAP:
810 if (ic->ic_state != IEEE80211_S_RUN || seq != 1)
811 return;
812 if (ni == ic->ic_bss) {
813 ni = ieee80211_alloc_node(ic, wh->i_addr2);
862 if (ni == ic->ic_bss) {
863 ni = ieee80211_alloc_node(ic, wh->i_addr2);
814 if (ni == NULL)
864 if (ni == NULL) {
865 ic->ic_stats.is_rx_nodealloc++;
815 return;
866 return;
867 }
816 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_bss->ni_bssid);
817 ni->ni_rssi = rssi;
818 ni->ni_rstamp = rstamp;
819 ni->ni_chan = ic->ic_bss->ni_chan;
820 allocbs = 1;
821 } else
822 allocbs = 0;
823 IEEE80211_SEND_MGMT(ic, ni,
824 IEEE80211_FC0_SUBTYPE_AUTH, 2);
825 if (ifp->if_flags & IFF_DEBUG)
826 if_printf(ifp, "station %s %s authenticated\n",
827 (allocbs ? "newly" : "already"),
828 ether_sprintf(ni->ni_macaddr));
829 break;
830
831 case IEEE80211_M_STA:
868 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_bss->ni_bssid);
869 ni->ni_rssi = rssi;
870 ni->ni_rstamp = rstamp;
871 ni->ni_chan = ic->ic_bss->ni_chan;
872 allocbs = 1;
873 } else
874 allocbs = 0;
875 IEEE80211_SEND_MGMT(ic, ni,
876 IEEE80211_FC0_SUBTYPE_AUTH, 2);
877 if (ifp->if_flags & IFF_DEBUG)
878 if_printf(ifp, "station %s %s authenticated\n",
879 (allocbs ? "newly" : "already"),
880 ether_sprintf(ni->ni_macaddr));
881 break;
882
883 case IEEE80211_M_STA:
832 if (ic->ic_state != IEEE80211_S_AUTH || seq != 2)
833 return;
834 if (status != 0) {
835 if_printf(&ic->ic_if,
836 "authentication failed (reason %d) for %s\n",
837 status,
838 ether_sprintf(wh->i_addr3));
839 if (ni != ic->ic_bss)
840 ni->ni_fails++;
884 if (status != 0) {
885 if_printf(&ic->ic_if,
886 "authentication failed (reason %d) for %s\n",
887 status,
888 ether_sprintf(wh->i_addr3));
889 if (ni != ic->ic_bss)
890 ni->ni_fails++;
891 ic->ic_stats.is_rx_auth_fail++;
841 return;
842 }
843 ieee80211_new_state(ic, IEEE80211_S_ASSOC,
844 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
845 break;
846 case IEEE80211_M_MONITOR:
847 break;
848 }

--- 23 unchanged lines hidden (view full) ---

872 * [tlv] ssid
873 * [tlv] supported rates
874 * [tlv] extended supported rates
875 */
876 IEEE80211_VERIFY_LENGTH(efrm - frm, (reassoc ? 10 : 4));
877 if (!IEEE80211_ADDR_EQ(wh->i_addr3, ic->ic_bss->ni_bssid)) {
878 IEEE80211_DPRINTF(("%s: ignore other bss from %s\n",
879 __func__, ether_sprintf(wh->i_addr2)));
892 return;
893 }
894 ieee80211_new_state(ic, IEEE80211_S_ASSOC,
895 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
896 break;
897 case IEEE80211_M_MONITOR:
898 break;
899 }

--- 23 unchanged lines hidden (view full) ---

923 * [tlv] ssid
924 * [tlv] supported rates
925 * [tlv] extended supported rates
926 */
927 IEEE80211_VERIFY_LENGTH(efrm - frm, (reassoc ? 10 : 4));
928 if (!IEEE80211_ADDR_EQ(wh->i_addr3, ic->ic_bss->ni_bssid)) {
929 IEEE80211_DPRINTF(("%s: ignore other bss from %s\n",
930 __func__, ether_sprintf(wh->i_addr2)));
931 ic->ic_stats.is_rx_assoc_bss++;
880 return;
881 }
882 capinfo = le16toh(*(u_int16_t *)frm); frm += 2;
883 bintval = le16toh(*(u_int16_t *)frm); frm += 2;
884 if (reassoc)
885 frm += 6; /* ignore current AP info */
886 ssid = rates = xrates = NULL;
887 while (frm < efrm) {

--- 16 unchanged lines hidden (view full) ---

904 memcmp(ssid + 2, ic->ic_bss->ni_essid, ssid[1]) != 0) {
905#ifdef IEEE80211_DEBUG
906 if (ieee80211_debug) {
907 printf("%s: ssid unmatch ", __func__);
908 ieee80211_print_essid(ssid + 2, ssid[1]);
909 printf(" from %s\n", ether_sprintf(wh->i_addr2));
910 }
911#endif
932 return;
933 }
934 capinfo = le16toh(*(u_int16_t *)frm); frm += 2;
935 bintval = le16toh(*(u_int16_t *)frm); frm += 2;
936 if (reassoc)
937 frm += 6; /* ignore current AP info */
938 ssid = rates = xrates = NULL;
939 while (frm < efrm) {

--- 16 unchanged lines hidden (view full) ---

956 memcmp(ssid + 2, ic->ic_bss->ni_essid, ssid[1]) != 0) {
957#ifdef IEEE80211_DEBUG
958 if (ieee80211_debug) {
959 printf("%s: ssid unmatch ", __func__);
960 ieee80211_print_essid(ssid + 2, ssid[1]);
961 printf(" from %s\n", ether_sprintf(wh->i_addr2));
962 }
963#endif
964 ic->ic_stats.is_rx_ssidmismatch++;
912 return;
913 }
914 if (ni == ic->ic_bss) {
915 IEEE80211_DPRINTF(("%s: not authenticated for %s\n",
916 __func__, ether_sprintf(wh->i_addr2)));
917 ni = ieee80211_dup_bss(ic, wh->i_addr2);
918 if (ni != NULL) {
919 IEEE80211_SEND_MGMT(ic, ni,
920 IEEE80211_FC0_SUBTYPE_DEAUTH,
921 IEEE80211_REASON_ASSOC_NOT_AUTHED);
922 ieee80211_free_node(ic, ni);
923 }
965 return;
966 }
967 if (ni == ic->ic_bss) {
968 IEEE80211_DPRINTF(("%s: not authenticated for %s\n",
969 __func__, ether_sprintf(wh->i_addr2)));
970 ni = ieee80211_dup_bss(ic, wh->i_addr2);
971 if (ni != NULL) {
972 IEEE80211_SEND_MGMT(ic, ni,
973 IEEE80211_FC0_SUBTYPE_DEAUTH,
974 IEEE80211_REASON_ASSOC_NOT_AUTHED);
975 ieee80211_free_node(ic, ni);
976 }
977 ic->ic_stats.is_rx_assoc_notauth++;
924 return;
925 }
926 /* XXX per-node cipher suite */
927 /* XXX some stations use the privacy bit for handling APs
928 that suport both encrypted and unencrypted traffic */
929 if ((capinfo & IEEE80211_CAPINFO_ESS) == 0 ||
930 (capinfo & IEEE80211_CAPINFO_PRIVACY) !=
931 ((ic->ic_flags & IEEE80211_F_WEPON) ?
932 IEEE80211_CAPINFO_PRIVACY : 0)) {
933 IEEE80211_DPRINTF(("%s: capability mismatch %x for %s\n",
934 __func__, capinfo, ether_sprintf(wh->i_addr2)));
935 ni->ni_associd = 0;
936 IEEE80211_SEND_MGMT(ic, ni, resp,
937 IEEE80211_STATUS_CAPINFO);
978 return;
979 }
980 /* XXX per-node cipher suite */
981 /* XXX some stations use the privacy bit for handling APs
982 that suport both encrypted and unencrypted traffic */
983 if ((capinfo & IEEE80211_CAPINFO_ESS) == 0 ||
984 (capinfo & IEEE80211_CAPINFO_PRIVACY) !=
985 ((ic->ic_flags & IEEE80211_F_WEPON) ?
986 IEEE80211_CAPINFO_PRIVACY : 0)) {
987 IEEE80211_DPRINTF(("%s: capability mismatch %x for %s\n",
988 __func__, capinfo, ether_sprintf(wh->i_addr2)));
989 ni->ni_associd = 0;
990 IEEE80211_SEND_MGMT(ic, ni, resp,
991 IEEE80211_STATUS_CAPINFO);
992 ic->ic_stats.is_rx_assoc_capmismatch++;
938 return;
939 }
940 ieee80211_setup_rates(ic, ni, rates, xrates,
941 IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE |
942 IEEE80211_F_DONEGO | IEEE80211_F_DODEL);
943 if (ni->ni_rates.rs_nrates == 0) {
944 IEEE80211_DPRINTF(("%s: rate unmatch for %s\n",
945 __func__, ether_sprintf(wh->i_addr2)));
946 ni->ni_associd = 0;
947 IEEE80211_SEND_MGMT(ic, ni, resp,
948 IEEE80211_STATUS_BASIC_RATE);
993 return;
994 }
995 ieee80211_setup_rates(ic, ni, rates, xrates,
996 IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE |
997 IEEE80211_F_DONEGO | IEEE80211_F_DODEL);
998 if (ni->ni_rates.rs_nrates == 0) {
999 IEEE80211_DPRINTF(("%s: rate unmatch for %s\n",
1000 __func__, ether_sprintf(wh->i_addr2)));
1001 ni->ni_associd = 0;
1002 IEEE80211_SEND_MGMT(ic, ni, resp,
1003 IEEE80211_STATUS_BASIC_RATE);
1004 ic->ic_stats.is_rx_assoc_norate++;
949 return;
950 }
951 ni->ni_rssi = rssi;
952 ni->ni_rstamp = rstamp;
953 ni->ni_intval = bintval;
954 ni->ni_capinfo = capinfo;
955 ni->ni_chan = ic->ic_bss->ni_chan;
956 ni->ni_fhdwell = ic->ic_bss->ni_fhdwell;

--- 41 unchanged lines hidden (view full) ---

998
999 status = le16toh(*(u_int16_t *)frm);
1000 frm += 2;
1001 if (status != 0) {
1002 if_printf(ifp, "association failed (reason %d) for %s\n",
1003 status, ether_sprintf(wh->i_addr3));
1004 if (ni != ic->ic_bss)
1005 ni->ni_fails++;
1005 return;
1006 }
1007 ni->ni_rssi = rssi;
1008 ni->ni_rstamp = rstamp;
1009 ni->ni_intval = bintval;
1010 ni->ni_capinfo = capinfo;
1011 ni->ni_chan = ic->ic_bss->ni_chan;
1012 ni->ni_fhdwell = ic->ic_bss->ni_fhdwell;

--- 41 unchanged lines hidden (view full) ---

1054
1055 status = le16toh(*(u_int16_t *)frm);
1056 frm += 2;
1057 if (status != 0) {
1058 if_printf(ifp, "association failed (reason %d) for %s\n",
1059 status, ether_sprintf(wh->i_addr3));
1060 if (ni != ic->ic_bss)
1061 ni->ni_fails++;
1062 ic->ic_stats.is_rx_auth_fail++;
1006 return;
1007 }
1008 ni->ni_associd = le16toh(*(u_int16_t *)frm);
1009 frm += 2;
1010
1011 rates = xrates = NULL;
1012 while (frm < efrm) {
1013 switch (*frm) {

--- 20 unchanged lines hidden (view full) ---

1034 case IEEE80211_FC0_SUBTYPE_DEAUTH: {
1035 u_int16_t reason;
1036 /*
1037 * deauth frame format
1038 * [2] reason
1039 */
1040 IEEE80211_VERIFY_LENGTH(efrm - frm, 2);
1041 reason = le16toh(*(u_int16_t *)frm);
1063 return;
1064 }
1065 ni->ni_associd = le16toh(*(u_int16_t *)frm);
1066 frm += 2;
1067
1068 rates = xrates = NULL;
1069 while (frm < efrm) {
1070 switch (*frm) {

--- 20 unchanged lines hidden (view full) ---

1091 case IEEE80211_FC0_SUBTYPE_DEAUTH: {
1092 u_int16_t reason;
1093 /*
1094 * deauth frame format
1095 * [2] reason
1096 */
1097 IEEE80211_VERIFY_LENGTH(efrm - frm, 2);
1098 reason = le16toh(*(u_int16_t *)frm);
1099 ic->ic_stats.is_rx_deauth++;
1042 switch (ic->ic_opmode) {
1043 case IEEE80211_M_STA:
1044 ieee80211_new_state(ic, IEEE80211_S_AUTH,
1045 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
1046 break;
1047 case IEEE80211_M_HOSTAP:
1048 if (ni != ic->ic_bss) {
1049 if (ifp->if_flags & IFF_DEBUG)

--- 13 unchanged lines hidden (view full) ---

1063 case IEEE80211_FC0_SUBTYPE_DISASSOC: {
1064 u_int16_t reason;
1065 /*
1066 * disassoc frame format
1067 * [2] reason
1068 */
1069 IEEE80211_VERIFY_LENGTH(efrm - frm, 2);
1070 reason = le16toh(*(u_int16_t *)frm);
1100 switch (ic->ic_opmode) {
1101 case IEEE80211_M_STA:
1102 ieee80211_new_state(ic, IEEE80211_S_AUTH,
1103 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
1104 break;
1105 case IEEE80211_M_HOSTAP:
1106 if (ni != ic->ic_bss) {
1107 if (ifp->if_flags & IFF_DEBUG)

--- 13 unchanged lines hidden (view full) ---

1121 case IEEE80211_FC0_SUBTYPE_DISASSOC: {
1122 u_int16_t reason;
1123 /*
1124 * disassoc frame format
1125 * [2] reason
1126 */
1127 IEEE80211_VERIFY_LENGTH(efrm - frm, 2);
1128 reason = le16toh(*(u_int16_t *)frm);
1129 ic->ic_stats.is_rx_disassoc++;
1071 switch (ic->ic_opmode) {
1072 case IEEE80211_M_STA:
1073 ieee80211_new_state(ic, IEEE80211_S_ASSOC,
1074 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
1075 break;
1076 case IEEE80211_M_HOSTAP:
1077 if (ni != ic->ic_bss) {
1078 if (ifp->if_flags & IFF_DEBUG)

--- 7 unchanged lines hidden (view full) ---

1086 default:
1087 break;
1088 }
1089 break;
1090 }
1091 default:
1092 IEEE80211_DPRINTF(("%s: mgmt frame with subtype 0x%x not "
1093 "handled\n", __func__, subtype));
1130 switch (ic->ic_opmode) {
1131 case IEEE80211_M_STA:
1132 ieee80211_new_state(ic, IEEE80211_S_ASSOC,
1133 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
1134 break;
1135 case IEEE80211_M_HOSTAP:
1136 if (ni != ic->ic_bss) {
1137 if (ifp->if_flags & IFF_DEBUG)

--- 7 unchanged lines hidden (view full) ---

1145 default:
1146 break;
1147 }
1148 break;
1149 }
1150 default:
1151 IEEE80211_DPRINTF(("%s: mgmt frame with subtype 0x%x not "
1152 "handled\n", __func__, subtype));
1153 ic->ic_stats.is_rx_badsubtype++;
1094 break;
1095 }
1096#undef ISPROBE
1097}
1098#undef IEEE80211_VERIFY_LENGTH
1099#undef IEEE80211_VERIFY_ELEMENT
1154 break;
1155 }
1156#undef ISPROBE
1157}
1158#undef IEEE80211_VERIFY_LENGTH
1159#undef IEEE80211_VERIFY_ELEMENT