FreeBSD kernel WLAN code
ieee80211_hostap.c
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1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29#ifdef __FreeBSD__
30__FBSDID("$FreeBSD$");
31#endif
32
33/*
34 * IEEE 802.11 HOSTAP mode support.
35 */
36#include "opt_inet.h"
37#include "opt_wlan.h"
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/mbuf.h>
42#include <sys/malloc.h>
43#include <sys/kernel.h>
44
45#include <sys/socket.h>
46#include <sys/sockio.h>
47#include <sys/endian.h>
48#include <sys/errno.h>
49#include <sys/proc.h>
50#include <sys/sysctl.h>
51
52#include <net/if.h>
53#include <net/if_var.h>
54#include <net/if_media.h>
55#include <net/if_llc.h>
56#include <net/ethernet.h>
57
58#include <net/bpf.h>
59
60#include <net80211/ieee80211_var.h>
61#include <net80211/ieee80211_hostap.h>
62#include <net80211/ieee80211_input.h>
63#ifdef IEEE80211_SUPPORT_SUPERG
64#include <net80211/ieee80211_superg.h>
65#endif
66#include <net80211/ieee80211_wds.h>
67#include <net80211/ieee80211_vht.h>
68#include <net80211/ieee80211_sta.h> /* for parse_wmeie */
69
70#define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2)
71
72static void hostap_vattach(struct ieee80211vap *);
73static int hostap_newstate(struct ieee80211vap *, enum ieee80211_state, int);
74static int hostap_input(struct ieee80211_node *ni, struct mbuf *m,
75 const struct ieee80211_rx_stats *,
76 int rssi, int nf);
77static void hostap_deliver_data(struct ieee80211vap *,
78 struct ieee80211_node *, struct mbuf *);
79static void hostap_recv_mgmt(struct ieee80211_node *, struct mbuf *,
80 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf);
81static void hostap_recv_ctl(struct ieee80211_node *, struct mbuf *, int);
82
83void
84ieee80211_hostap_attach(struct ieee80211com *ic)
85{
86 ic->ic_vattach[IEEE80211_M_HOSTAP] = hostap_vattach;
87}
88
89void
90ieee80211_hostap_detach(struct ieee80211com *ic)
91{
92}
93
94static void
95hostap_vdetach(struct ieee80211vap *vap)
96{
97}
98
99static void
100hostap_vattach(struct ieee80211vap *vap)
101{
102 vap->iv_newstate = hostap_newstate;
103 vap->iv_input = hostap_input;
104 vap->iv_recv_mgmt = hostap_recv_mgmt;
105 vap->iv_recv_ctl = hostap_recv_ctl;
106 vap->iv_opdetach = hostap_vdetach;
107 vap->iv_deliver_data = hostap_deliver_data;
108 vap->iv_recv_pspoll = ieee80211_recv_pspoll;
109}
110
111static void
112sta_disassoc(void *arg, struct ieee80211_node *ni)
113{
114
115 if (ni->ni_associd != 0) {
116 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
117 IEEE80211_REASON_ASSOC_LEAVE);
118 ieee80211_node_leave(ni);
119 }
120}
121
122static void
123sta_csa(void *arg, struct ieee80211_node *ni)
124{
125 struct ieee80211vap *vap = ni->ni_vap;
126
127 if (ni->ni_associd != 0)
128 if (ni->ni_inact > vap->iv_inact_init) {
129 ni->ni_inact = vap->iv_inact_init;
130 IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
131 "%s: inact %u", __func__, ni->ni_inact);
132 }
133}
134
135static void
136sta_drop(void *arg, struct ieee80211_node *ni)
137{
138
139 if (ni->ni_associd != 0)
140 ieee80211_node_leave(ni);
141}
142
143/*
144 * Does a channel change require associated stations to re-associate
145 * so protocol state is correct. This is used when doing CSA across
146 * bands or similar (e.g. HT -> legacy).
147 */
148static int
149isbandchange(struct ieee80211com *ic)
150{
151 return ((ic->ic_bsschan->ic_flags ^ ic->ic_csa_newchan->ic_flags) &
152 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_HALF |
153 IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HT)) != 0;
154}
155
156/*
157 * IEEE80211_M_HOSTAP vap state machine handler.
158 */
159static int
160hostap_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
161{
162 struct ieee80211com *ic = vap->iv_ic;
163 enum ieee80211_state ostate;
164
165 IEEE80211_LOCK_ASSERT(ic);
166
167 ostate = vap->iv_state;
168 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s (%d)\n",
169 __func__, ieee80211_state_name[ostate],
170 ieee80211_state_name[nstate], arg);
171 vap->iv_state = nstate; /* state transition */
172 if (ostate != IEEE80211_S_SCAN)
173 ieee80211_cancel_scan(vap); /* background scan */
174 switch (nstate) {
175 case IEEE80211_S_INIT:
176 switch (ostate) {
177 case IEEE80211_S_SCAN:
178 ieee80211_cancel_scan(vap);
179 break;
180 case IEEE80211_S_CAC:
181 ieee80211_dfs_cac_stop(vap);
182 break;
183 case IEEE80211_S_RUN:
184 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
185 sta_disassoc, NULL);
186 break;
187 default:
188 break;
189 }
190 if (ostate != IEEE80211_S_INIT) {
191 /* NB: optimize INIT -> INIT case */
192 ieee80211_reset_bss(vap);
193 }
194 if (vap->iv_auth->ia_detach != NULL)
195 vap->iv_auth->ia_detach(vap);
196 break;
197 case IEEE80211_S_SCAN:
198 switch (ostate) {
199 case IEEE80211_S_CSA:
200 case IEEE80211_S_RUN:
201 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
202 sta_disassoc, NULL);
203 /*
204 * Clear overlapping BSS state; the beacon frame
205 * will be reconstructed on transition to the RUN
206 * state and the timeout routines check if the flag
207 * is set before doing anything so this is sufficient.
208 */
209 vap->iv_flags_ext &= ~IEEE80211_FEXT_NONERP_PR;
210 vap->iv_flags_ht &= ~IEEE80211_FHT_NONHT_PR;
211 /* XXX TODO: schedule deferred update? */
212 /* fall thru... */
213 case IEEE80211_S_CAC:
214 /*
215 * NB: We may get here because of a manual channel
216 * change in which case we need to stop CAC
217 * XXX no need to stop if ostate RUN but it's ok
218 */
219 ieee80211_dfs_cac_stop(vap);
220 /* fall thru... */
221 case IEEE80211_S_INIT:
222 if (vap->iv_des_chan != IEEE80211_CHAN_ANYC &&
223 !IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan)) {
224 /*
225 * Already have a channel; bypass the
226 * scan and startup immediately.
227 * ieee80211_create_ibss will call back to
228 * move us to RUN state.
229 */
230 ieee80211_create_ibss(vap, vap->iv_des_chan);
231 break;
232 }
233 /*
234 * Initiate a scan. We can come here as a result
235 * of an IEEE80211_IOC_SCAN_REQ too in which case
236 * the vap will be marked with IEEE80211_FEXT_SCANREQ
237 * and the scan request parameters will be present
238 * in iv_scanreq. Otherwise we do the default.
239 */
240 if (vap->iv_flags_ext & IEEE80211_FEXT_SCANREQ) {
241 ieee80211_check_scan(vap,
242 vap->iv_scanreq_flags,
243 vap->iv_scanreq_duration,
244 vap->iv_scanreq_mindwell,
245 vap->iv_scanreq_maxdwell,
246 vap->iv_scanreq_nssid, vap->iv_scanreq_ssid);
247 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
248 } else
249 ieee80211_check_scan_current(vap);
250 break;
251 case IEEE80211_S_SCAN:
252 /*
253 * A state change requires a reset; scan.
254 */
255 ieee80211_check_scan_current(vap);
256 break;
257 default:
258 break;
259 }
260 break;
261 case IEEE80211_S_CAC:
262 /*
263 * Start CAC on a DFS channel. We come here when starting
264 * a bss on a DFS channel (see ieee80211_create_ibss).
265 */
266 ieee80211_dfs_cac_start(vap);
267 break;
268 case IEEE80211_S_RUN:
269 if (vap->iv_flags & IEEE80211_F_WPA) {
270 /* XXX validate prerequisites */
271 }
272 switch (ostate) {
273 case IEEE80211_S_INIT:
274 /*
275 * Already have a channel; bypass the
276 * scan and startup immediately.
277 * Note that ieee80211_create_ibss will call
278 * back to do a RUN->RUN state change.
279 */
280 ieee80211_create_ibss(vap,
281 ieee80211_ht_adjust_channel(ic,
282 ic->ic_curchan, vap->iv_flags_ht));
283 /* NB: iv_bss is changed on return */
284 break;
285 case IEEE80211_S_CAC:
286 /*
287 * NB: This is the normal state change when CAC
288 * expires and no radar was detected; no need to
289 * clear the CAC timer as it's already expired.
290 */
291 /* fall thru... */
292 case IEEE80211_S_CSA:
293 /*
294 * Shorten inactivity timer of associated stations
295 * to weed out sta's that don't follow a CSA.
296 */
297 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
298 sta_csa, NULL);
299 /*
300 * Update bss node channel to reflect where
301 * we landed after CSA.
302 */
303 ieee80211_node_set_chan(vap->iv_bss,
304 ieee80211_ht_adjust_channel(ic, ic->ic_curchan,
305 ieee80211_htchanflags(vap->iv_bss->ni_chan)));
306 /* XXX bypass debug msgs */
307 break;
308 case IEEE80211_S_SCAN:
309 case IEEE80211_S_RUN:
310#ifdef IEEE80211_DEBUG
311 if (ieee80211_msg_debug(vap)) {
312 struct ieee80211_node *ni = vap->iv_bss;
313 ieee80211_note(vap,
314 "synchronized with %s ssid ",
315 ether_sprintf(ni->ni_bssid));
316 ieee80211_print_essid(ni->ni_essid,
317 ni->ni_esslen);
318 /* XXX MCS/HT */
319 printf(" channel %d start %uMb\n",
320 ieee80211_chan2ieee(ic, ic->ic_curchan),
321 IEEE80211_RATE2MBS(ni->ni_txrate));
322 }
323#endif
324 break;
325 default:
326 break;
327 }
328 /*
329 * Start/stop the authenticator. We delay until here
330 * to allow configuration to happen out of order.
331 */
332 if (vap->iv_auth->ia_attach != NULL) {
333 /* XXX check failure */
334 vap->iv_auth->ia_attach(vap);
335 } else if (vap->iv_auth->ia_detach != NULL) {
336 vap->iv_auth->ia_detach(vap);
337 }
338 ieee80211_node_authorize(vap->iv_bss);
339 break;
340 case IEEE80211_S_CSA:
341 if (ostate == IEEE80211_S_RUN && isbandchange(ic)) {
342 /*
343 * On a ``band change'' silently drop associated
344 * stations as they must re-associate before they
345 * can pass traffic (as otherwise protocol state
346 * such as capabilities and the negotiated rate
347 * set may/will be wrong).
348 */
349 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
350 sta_drop, NULL);
351 }
352 break;
353 default:
354 break;
355 }
356 return 0;
357}
358
359static void
360hostap_deliver_data(struct ieee80211vap *vap,
361 struct ieee80211_node *ni, struct mbuf *m)
362{
363 struct ether_header *eh = mtod(m, struct ether_header *);
364 struct ifnet *ifp = vap->iv_ifp;
365
366 /* clear driver/net80211 flags before passing up */
367 m->m_flags &= ~(M_MCAST | M_BCAST);
368 m_clrprotoflags(m);
369
370 KASSERT(vap->iv_opmode == IEEE80211_M_HOSTAP,
371 ("gack, opmode %d", vap->iv_opmode));
372 /*
373 * Do accounting.
374 */
375 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
376 IEEE80211_NODE_STAT(ni, rx_data);
377 IEEE80211_NODE_STAT_ADD(ni, rx_bytes, m->m_pkthdr.len);
378 if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
379 m->m_flags |= M_MCAST; /* XXX M_BCAST? */
380 IEEE80211_NODE_STAT(ni, rx_mcast);
381 } else
382 IEEE80211_NODE_STAT(ni, rx_ucast);
383
384 /* perform as a bridge within the AP */
385 if ((vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0) {
386 struct mbuf *mcopy = NULL;
387
388 if (m->m_flags & M_MCAST) {
389 mcopy = m_dup(m, M_NOWAIT);
390 if (mcopy == NULL)
391 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
392 else
393 mcopy->m_flags |= M_MCAST;
394 } else {
395 /*
396 * Check if the destination is associated with the
397 * same vap and authorized to receive traffic.
398 * Beware of traffic destined for the vap itself;
399 * sending it will not work; just let it be delivered
400 * normally.
401 */
402 struct ieee80211_node *sta = ieee80211_find_vap_node(
403 &vap->iv_ic->ic_sta, vap, eh->ether_dhost);
404 if (sta != NULL) {
405 if (ieee80211_node_is_authorized(sta)) {
406 /*
407 * Beware of sending to ourself; this
408 * needs to happen via the normal
409 * input path.
410 */
411 if (sta != vap->iv_bss) {
412 mcopy = m;
413 m = NULL;
414 }
415 } else {
416 vap->iv_stats.is_rx_unauth++;
417 IEEE80211_NODE_STAT(sta, rx_unauth);
418 }
419 ieee80211_free_node(sta);
420 }
421 }
422 if (mcopy != NULL)
423 (void) ieee80211_vap_xmitpkt(vap, mcopy);
424 }
425 if (m != NULL) {
426 /*
427 * Mark frame as coming from vap's interface.
428 */
429 m->m_pkthdr.rcvif = ifp;
430 if (m->m_flags & M_MCAST) {
431 /*
432 * Spam DWDS vap's w/ multicast traffic.
433 */
434 /* XXX only if dwds in use? */
435 ieee80211_dwds_mcast(vap, m);
436 }
437 if (ni->ni_vlan != 0) {
438 /* attach vlan tag */
439 m->m_pkthdr.ether_vtag = ni->ni_vlan;
440 m->m_flags |= M_VLANTAG;
441 }
442 ifp->if_input(ifp, m);
443 }
444}
445
446/*
447 * Decide if a received management frame should be
448 * printed when debugging is enabled. This filters some
449 * of the less interesting frames that come frequently
450 * (e.g. beacons).
451 */
452static __inline int
453doprint(struct ieee80211vap *vap, int subtype)
454{
455 switch (subtype) {
456 case IEEE80211_FC0_SUBTYPE_BEACON:
457 return (vap->iv_ic->ic_flags & IEEE80211_F_SCAN);
458 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
459 return 0;
460 }
461 return 1;
462}
463
464/*
465 * Process a received frame. The node associated with the sender
466 * should be supplied. If nothing was found in the node table then
467 * the caller is assumed to supply a reference to iv_bss instead.
468 * The RSSI and a timestamp are also supplied. The RSSI data is used
469 * during AP scanning to select a AP to associate with; it can have
470 * any units so long as values have consistent units and higher values
471 * mean ``better signal''. The receive timestamp is currently not used
472 * by the 802.11 layer.
473 */
474static int
475hostap_input(struct ieee80211_node *ni, struct mbuf *m,
476 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
477{
478 struct ieee80211vap *vap = ni->ni_vap;
479 struct ieee80211com *ic = ni->ni_ic;
480 struct ifnet *ifp = vap->iv_ifp;
481 struct ieee80211_frame *wh;
482 struct ieee80211_key *key;
483 struct ether_header *eh;
484 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
485 uint8_t dir, type, subtype, qos;
486 uint8_t *bssid;
487 int is_hw_decrypted = 0;
488 int has_decrypted = 0;
489
490 /*
491 * Some devices do hardware decryption all the way through
492 * to pretending the frame wasn't encrypted in the first place.
493 * So, tag it appropriately so it isn't discarded inappropriately.
494 */
495 if ((rxs != NULL) && (rxs->c_pktflags & IEEE80211_RX_F_DECRYPTED))
496 is_hw_decrypted = 1;
497
498 if (m->m_flags & M_AMPDU_MPDU) {
499 /*
500 * Fastpath for A-MPDU reorder q resubmission. Frames
501 * w/ M_AMPDU_MPDU marked have already passed through
502 * here but were received out of order and been held on
503 * the reorder queue. When resubmitted they are marked
504 * with the M_AMPDU_MPDU flag and we can bypass most of
505 * the normal processing.
506 */
507 wh = mtod(m, struct ieee80211_frame *);
508 type = IEEE80211_FC0_TYPE_DATA;
509 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
510 subtype = IEEE80211_FC0_SUBTYPE_QOS;
511 hdrspace = ieee80211_hdrspace(ic, wh); /* XXX optimize? */
512 goto resubmit_ampdu;
513 }
514
515 KASSERT(ni != NULL, ("null node"));
516 ni->ni_inact = ni->ni_inact_reload;
517
518 type = -1; /* undefined */
519
520 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
521 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
522 ni->ni_macaddr, NULL,
523 "too short (1): len %u", m->m_pkthdr.len);
524 vap->iv_stats.is_rx_tooshort++;
525 goto out;
526 }
527 /*
528 * Bit of a cheat here, we use a pointer for a 3-address
529 * frame format but don't reference fields past outside
530 * ieee80211_frame_min w/o first validating the data is
531 * present.
532 */
533 wh = mtod(m, struct ieee80211_frame *);
534
535 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
536 IEEE80211_FC0_VERSION_0) {
537 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
538 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
539 wh->i_fc[0], wh->i_fc[1]);
540 vap->iv_stats.is_rx_badversion++;
541 goto err;
542 }
543
544 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
545 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
546 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
547 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
548 if (dir != IEEE80211_FC1_DIR_NODS)
549 bssid = wh->i_addr1;
550 else if (type == IEEE80211_FC0_TYPE_CTL)
551 bssid = wh->i_addr1;
552 else {
553 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
554 IEEE80211_DISCARD_MAC(vap,
555 IEEE80211_MSG_ANY, ni->ni_macaddr,
556 NULL, "too short (2): len %u",
557 m->m_pkthdr.len);
558 vap->iv_stats.is_rx_tooshort++;
559 goto out;
560 }
561 bssid = wh->i_addr3;
562 }
563 /*
564 * Validate the bssid.
565 */
566 if (!(type == IEEE80211_FC0_TYPE_MGT &&
567 subtype == IEEE80211_FC0_SUBTYPE_BEACON) &&
568 !IEEE80211_ADDR_EQ(bssid, vap->iv_bss->ni_bssid) &&
569 !IEEE80211_ADDR_EQ(bssid, ifp->if_broadcastaddr)) {
570 /* not interested in */
571 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
572 bssid, NULL, "%s", "not to bss");
573 vap->iv_stats.is_rx_wrongbss++;
574 goto out;
575 }
576
577 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
578 ni->ni_noise = nf;
579 if (IEEE80211_HAS_SEQ(type, subtype)) {
580 uint8_t tid = ieee80211_gettid(wh);
581 if (IEEE80211_QOS_HAS_SEQ(wh) &&
582 TID_TO_WME_AC(tid) >= WME_AC_VI)
583 ic->ic_wme.wme_hipri_traffic++;
584 if (! ieee80211_check_rxseq(ni, wh, bssid, rxs))
585 goto out;
586 }
587 }
588
589 switch (type) {
590 case IEEE80211_FC0_TYPE_DATA:
591 hdrspace = ieee80211_hdrspace(ic, wh);
592 if (m->m_len < hdrspace &&
593 (m = m_pullup(m, hdrspace)) == NULL) {
594 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
595 ni->ni_macaddr, NULL,
596 "data too short: expecting %u", hdrspace);
597 vap->iv_stats.is_rx_tooshort++;
598 goto out; /* XXX */
599 }
600 if (!(dir == IEEE80211_FC1_DIR_TODS ||
601 (dir == IEEE80211_FC1_DIR_DSTODS &&
602 (vap->iv_flags & IEEE80211_F_DWDS)))) {
603 if (dir != IEEE80211_FC1_DIR_DSTODS) {
604 IEEE80211_DISCARD(vap,
605 IEEE80211_MSG_INPUT, wh, "data",
606 "incorrect dir 0x%x", dir);
607 } else {
608 IEEE80211_DISCARD(vap,
609 IEEE80211_MSG_INPUT |
610 IEEE80211_MSG_WDS, wh,
611 "4-address data",
612 "%s", "DWDS not enabled");
613 }
614 vap->iv_stats.is_rx_wrongdir++;
615 goto out;
616 }
617 /* check if source STA is associated */
618 if (ni == vap->iv_bss) {
619 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
620 wh, "data", "%s", "unknown src");
621 ieee80211_send_error(ni, wh->i_addr2,
622 IEEE80211_FC0_SUBTYPE_DEAUTH,
623 IEEE80211_REASON_NOT_AUTHED);
624 vap->iv_stats.is_rx_notassoc++;
625 goto err;
626 }
627 if (ni->ni_associd == 0) {
628 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
629 wh, "data", "%s", "unassoc src");
630 IEEE80211_SEND_MGMT(ni,
631 IEEE80211_FC0_SUBTYPE_DISASSOC,
632 IEEE80211_REASON_NOT_ASSOCED);
633 vap->iv_stats.is_rx_notassoc++;
634 goto err;
635 }
636
637 /*
638 * Check for power save state change.
639 * XXX out-of-order A-MPDU frames?
640 */
641 if (((wh->i_fc[1] & IEEE80211_FC1_PWR_MGT) ^
642 (ni->ni_flags & IEEE80211_NODE_PWR_MGT)))
643 vap->iv_node_ps(ni,
644 wh->i_fc[1] & IEEE80211_FC1_PWR_MGT);
645 /*
646 * For 4-address packets handle WDS discovery
647 * notifications. Once a WDS link is setup frames
648 * are just delivered to the WDS vap (see below).
649 */
650 if (dir == IEEE80211_FC1_DIR_DSTODS && ni->ni_wdsvap == NULL) {
651 if (!ieee80211_node_is_authorized(ni)) {
652 IEEE80211_DISCARD(vap,
653 IEEE80211_MSG_INPUT |
654 IEEE80211_MSG_WDS, wh,
655 "4-address data",
656 "%s", "unauthorized port");
657 vap->iv_stats.is_rx_unauth++;
658 IEEE80211_NODE_STAT(ni, rx_unauth);
659 goto err;
660 }
661 ieee80211_dwds_discover(ni, m);
662 return type;
663 }
664
665 /*
666 * Handle A-MPDU re-ordering. If the frame is to be
667 * processed directly then ieee80211_ampdu_reorder
668 * will return 0; otherwise it has consumed the mbuf
669 * and we should do nothing more with it.
670 */
671 if ((m->m_flags & M_AMPDU) &&
672 ieee80211_ampdu_reorder(ni, m, rxs) != 0) {
673 m = NULL;
674 goto out;
675 }
676 resubmit_ampdu:
677
678 /*
679 * Handle privacy requirements. Note that we
680 * must not be preempted from here until after
681 * we (potentially) call ieee80211_crypto_demic;
682 * otherwise we may violate assumptions in the
683 * crypto cipher modules used to do delayed update
684 * of replay sequence numbers.
685 */
686 if (is_hw_decrypted || wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
687 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
688 /*
689 * Discard encrypted frames when privacy is off.
690 */
691 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
692 wh, "WEP", "%s", "PRIVACY off");
693 vap->iv_stats.is_rx_noprivacy++;
694 IEEE80211_NODE_STAT(ni, rx_noprivacy);
695 goto out;
696 }
697 if (ieee80211_crypto_decap(ni, m, hdrspace, &key) == 0) {
698 /* NB: stats+msgs handled in crypto_decap */
699 IEEE80211_NODE_STAT(ni, rx_wepfail);
700 goto out;
701 }
702 wh = mtod(m, struct ieee80211_frame *);
703 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
704 has_decrypted = 1;
705 } else {
706 /* XXX M_WEP and IEEE80211_F_PRIVACY */
707 key = NULL;
708 }
709
710 /*
711 * Save QoS bits for use below--before we strip the header.
712 */
713 if (subtype == IEEE80211_FC0_SUBTYPE_QOS)
714 qos = ieee80211_getqos(wh)[0];
715 else
716 qos = 0;
717
718 /*
719 * Next up, any fragmentation.
720 */
721 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
722 m = ieee80211_defrag(ni, m, hdrspace, has_decrypted);
723 if (m == NULL) {
724 /* Fragment dropped or frame not complete yet */
725 goto out;
726 }
727 }
728 wh = NULL; /* no longer valid, catch any uses */
729
730 /*
731 * Next strip any MSDU crypto bits.
732 */
733 if (key != NULL && !ieee80211_crypto_demic(vap, key, m, 0)) {
734 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
735 ni->ni_macaddr, "data", "%s", "demic error");
736 vap->iv_stats.is_rx_demicfail++;
737 IEEE80211_NODE_STAT(ni, rx_demicfail);
738 goto out;
739 }
740 /* copy to listener after decrypt */
741 if (ieee80211_radiotap_active_vap(vap))
742 ieee80211_radiotap_rx(vap, m);
743 need_tap = 0;
744 /*
745 * Finally, strip the 802.11 header.
746 */
747 m = ieee80211_decap(vap, m, hdrspace, qos);
748 if (m == NULL) {
749 /* XXX mask bit to check for both */
750 /* don't count Null data frames as errors */
751 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
752 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
753 goto out;
754 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
755 ni->ni_macaddr, "data", "%s", "decap error");
756 vap->iv_stats.is_rx_decap++;
757 IEEE80211_NODE_STAT(ni, rx_decap);
758 goto err;
759 }
760 if (!(qos & IEEE80211_QOS_AMSDU))
761 eh = mtod(m, struct ether_header *);
762 else
763 eh = NULL;
764 if (!ieee80211_node_is_authorized(ni)) {
765 /*
766 * Deny any non-PAE frames received prior to
767 * authorization. For open/shared-key
768 * authentication the port is mark authorized
769 * after authentication completes. For 802.1x
770 * the port is not marked authorized by the
771 * authenticator until the handshake has completed.
772 */
773 if (eh == NULL ||
774 eh->ether_type != htons(ETHERTYPE_PAE)) {
775 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
776 ni->ni_macaddr, "data", "unauthorized or "
777 "unknown port: ether type 0x%x len %u",
778 eh == NULL ? -1 : eh->ether_type,
779 m->m_pkthdr.len);
780 vap->iv_stats.is_rx_unauth++;
781 IEEE80211_NODE_STAT(ni, rx_unauth);
782 goto err;
783 }
784 } else {
785 /*
786 * When denying unencrypted frames, discard
787 * any non-PAE frames received without encryption.
788 */
789 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
790 ((has_decrypted == 0) && (m->m_flags & M_WEP) == 0) &&
791 (is_hw_decrypted == 0) &&
792 (eh == NULL ||
793 eh->ether_type != htons(ETHERTYPE_PAE))) {
794 /*
795 * Drop unencrypted frames.
796 */
797 vap->iv_stats.is_rx_unencrypted++;
798 IEEE80211_NODE_STAT(ni, rx_unencrypted);
799 goto out;
800 }
801 }
802 /* XXX require HT? */
803 if (qos & IEEE80211_QOS_AMSDU) {
804 m = ieee80211_decap_amsdu(ni, m);
805 if (m == NULL)
806 return IEEE80211_FC0_TYPE_DATA;
807 } else {
808#ifdef IEEE80211_SUPPORT_SUPERG
809 m = ieee80211_decap_fastframe(vap, ni, m);
810 if (m == NULL)
811 return IEEE80211_FC0_TYPE_DATA;
812#endif
813 }
814 if (dir == IEEE80211_FC1_DIR_DSTODS && ni->ni_wdsvap != NULL)
815 ieee80211_deliver_data(ni->ni_wdsvap, ni, m);
816 else
817 hostap_deliver_data(vap, ni, m);
818 return IEEE80211_FC0_TYPE_DATA;
819
820 case IEEE80211_FC0_TYPE_MGT:
821 vap->iv_stats.is_rx_mgmt++;
822 IEEE80211_NODE_STAT(ni, rx_mgmt);
823 if (dir != IEEE80211_FC1_DIR_NODS) {
824 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
825 wh, "mgt", "incorrect dir 0x%x", dir);
826 vap->iv_stats.is_rx_wrongdir++;
827 goto err;
828 }
829 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
830 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
831 ni->ni_macaddr, "mgt", "too short: len %u",
832 m->m_pkthdr.len);
833 vap->iv_stats.is_rx_tooshort++;
834 goto out;
835 }
836 if (IEEE80211_IS_MULTICAST(wh->i_addr2)) {
837 /* ensure return frames are unicast */
838 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
839 wh, NULL, "source is multicast: %s",
840 ether_sprintf(wh->i_addr2));
841 vap->iv_stats.is_rx_mgtdiscard++; /* XXX stat */
842 goto out;
843 }
844#ifdef IEEE80211_DEBUG
845 if ((ieee80211_msg_debug(vap) && doprint(vap, subtype)) ||
846 ieee80211_msg_dumppkts(vap)) {
847 if_printf(ifp, "received %s from %s rssi %d\n",
848 ieee80211_mgt_subtype_name(subtype),
849 ether_sprintf(wh->i_addr2), rssi);
850 }
851#endif
852 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
853 if (subtype != IEEE80211_FC0_SUBTYPE_AUTH) {
854 /*
855 * Only shared key auth frames with a challenge
856 * should be encrypted, discard all others.
857 */
858 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
859 wh, NULL,
860 "%s", "WEP set but not permitted");
861 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
862 goto out;
863 }
864 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
865 /*
866 * Discard encrypted frames when privacy is off.
867 */
868 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
869 wh, NULL, "%s", "WEP set but PRIVACY off");
870 vap->iv_stats.is_rx_noprivacy++;
871 goto out;
872 }
873 hdrspace = ieee80211_hdrspace(ic, wh);
874 if (ieee80211_crypto_decap(ni, m, hdrspace, &key) == 0) {
875 /* NB: stats+msgs handled in crypto_decap */
876 goto out;
877 }
878 wh = mtod(m, struct ieee80211_frame *);
879 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
880 has_decrypted = 1;
881 }
882 /*
883 * Pass the packet to radiotap before calling iv_recv_mgmt().
884 * Otherwise iv_recv_mgmt() might pass another packet to
885 * radiotap, resulting in out of order packet captures.
886 */
887 if (ieee80211_radiotap_active_vap(vap))
888 ieee80211_radiotap_rx(vap, m);
889 need_tap = 0;
890 vap->iv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
891 goto out;
892
893 case IEEE80211_FC0_TYPE_CTL:
894 vap->iv_stats.is_rx_ctl++;
895 IEEE80211_NODE_STAT(ni, rx_ctrl);
896 vap->iv_recv_ctl(ni, m, subtype);
897 goto out;
898 default:
899 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
900 wh, "bad", "frame type 0x%x", type);
901 /* should not come here */
902 break;
903 }
904err:
905 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
906out:
907 if (m != NULL) {
908 if (need_tap && ieee80211_radiotap_active_vap(vap))
909 ieee80211_radiotap_rx(vap, m);
910 m_freem(m);
911 }
912 return type;
913}
914
915static void
916hostap_auth_open(struct ieee80211_node *ni, struct ieee80211_frame *wh,
917 int rssi, int nf, uint16_t seq, uint16_t status)
918{
919 struct ieee80211vap *vap = ni->ni_vap;
920
921 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state));
922
923 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) {
924 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
925 ni->ni_macaddr, "open auth",
926 "bad sta auth mode %u", ni->ni_authmode);
927 vap->iv_stats.is_rx_bad_auth++; /* XXX */
928 /*
929 * Clear any challenge text that may be there if
930 * a previous shared key auth failed and then an
931 * open auth is attempted.
932 */
933 if (ni->ni_challenge != NULL) {
934 IEEE80211_FREE(ni->ni_challenge, M_80211_NODE);
935 ni->ni_challenge = NULL;
936 }
937 /* XXX hack to workaround calling convention */
938 ieee80211_send_error(ni, wh->i_addr2,
939 IEEE80211_FC0_SUBTYPE_AUTH,
940 (seq + 1) | (IEEE80211_STATUS_ALG<<16));
941 return;
942 }
943 if (seq != IEEE80211_AUTH_OPEN_REQUEST) {
944 vap->iv_stats.is_rx_bad_auth++;
945 return;
946 }
947 /* always accept open authentication requests */
948 if (ni == vap->iv_bss) {
949 ni = ieee80211_dup_bss(vap, wh->i_addr2);
950 if (ni == NULL)
951 return;
952 } else if ((ni->ni_flags & IEEE80211_NODE_AREF) == 0)
953 (void) ieee80211_ref_node(ni);
954 /*
955 * Mark the node as referenced to reflect that it's
956 * reference count has been bumped to insure it remains
957 * after the transaction completes.
958 */
959 ni->ni_flags |= IEEE80211_NODE_AREF;
960 /*
961 * Mark the node as requiring a valid association id
962 * before outbound traffic is permitted.
963 */
964 ni->ni_flags |= IEEE80211_NODE_ASSOCID;
965
966 if (vap->iv_acl != NULL &&
967 vap->iv_acl->iac_getpolicy(vap) == IEEE80211_MACCMD_POLICY_RADIUS) {
968 /*
969 * When the ACL policy is set to RADIUS we defer the
970 * authorization to a user agent. Dispatch an event,
971 * a subsequent MLME call will decide the fate of the
972 * station. If the user agent is not present then the
973 * node will be reclaimed due to inactivity.
974 */
975 IEEE80211_NOTE_MAC(vap,
976 IEEE80211_MSG_AUTH | IEEE80211_MSG_ACL, ni->ni_macaddr,
977 "%s", "station authentication defered (radius acl)");
978 ieee80211_notify_node_auth(ni);
979 } else {
980 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_AUTH, seq + 1);
981 IEEE80211_NOTE_MAC(vap,
982 IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH, ni->ni_macaddr,
983 "%s", "station authenticated (open)");
984 /*
985 * When 802.1x is not in use mark the port
986 * authorized at this point so traffic can flow.
987 */
988 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
989 ieee80211_node_authorize(ni);
990 }
991}
992
993static void
994hostap_auth_shared(struct ieee80211_node *ni, struct ieee80211_frame *wh,
995 uint8_t *frm, uint8_t *efrm, int rssi, int nf,
996 uint16_t seq, uint16_t status)
997{
998 struct ieee80211vap *vap = ni->ni_vap;
999 uint8_t *challenge;
1000 int estatus;
1001
1002 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state));
1003
1004 /*
1005 * NB: this can happen as we allow pre-shared key
1006 * authentication to be enabled w/o wep being turned
1007 * on so that configuration of these can be done
1008 * in any order. It may be better to enforce the
1009 * ordering in which case this check would just be
1010 * for sanity/consistency.
1011 */
1012 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
1013 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1014 ni->ni_macaddr, "shared key auth",
1015 "%s", " PRIVACY is disabled");
1016 estatus = IEEE80211_STATUS_ALG;
1017 goto bad;
1018 }
1019 /*
1020 * Pre-shared key authentication is evil; accept
1021 * it only if explicitly configured (it is supported
1022 * mainly for compatibility with clients like Mac OS X).
1023 */
1024 if (ni->ni_authmode != IEEE80211_AUTH_AUTO &&
1025 ni->ni_authmode != IEEE80211_AUTH_SHARED) {
1026 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1027 ni->ni_macaddr, "shared key auth",
1028 "bad sta auth mode %u", ni->ni_authmode);
1029 vap->iv_stats.is_rx_bad_auth++; /* XXX maybe a unique error? */
1030 estatus = IEEE80211_STATUS_ALG;
1031 goto bad;
1032 }
1033
1034 challenge = NULL;
1035 if (frm + 1 < efrm) {
1036 if ((frm[1] + 2) > (efrm - frm)) {
1037 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1038 ni->ni_macaddr, "shared key auth",
1039 "ie %d/%d too long",
1040 frm[0], (frm[1] + 2) - (efrm - frm));
1041 vap->iv_stats.is_rx_bad_auth++;
1042 estatus = IEEE80211_STATUS_CHALLENGE;
1043 goto bad;
1044 }
1045 if (*frm == IEEE80211_ELEMID_CHALLENGE)
1046 challenge = frm;
1047 frm += frm[1] + 2;
1048 }
1049 switch (seq) {
1050 case IEEE80211_AUTH_SHARED_CHALLENGE:
1051 case IEEE80211_AUTH_SHARED_RESPONSE:
1052 if (challenge == NULL) {
1053 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1054 ni->ni_macaddr, "shared key auth",
1055 "%s", "no challenge");
1056 vap->iv_stats.is_rx_bad_auth++;
1057 estatus = IEEE80211_STATUS_CHALLENGE;
1058 goto bad;
1059 }
1060 if (challenge[1] != IEEE80211_CHALLENGE_LEN) {
1061 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1062 ni->ni_macaddr, "shared key auth",
1063 "bad challenge len %d", challenge[1]);
1064 vap->iv_stats.is_rx_bad_auth++;
1065 estatus = IEEE80211_STATUS_CHALLENGE;
1066 goto bad;
1067 }
1068 default:
1069 break;
1070 }
1071 switch (seq) {
1072 case IEEE80211_AUTH_SHARED_REQUEST:
1073 {
1074#ifdef IEEE80211_DEBUG
1075 bool allocbs;
1076#endif
1077
1078 if (ni == vap->iv_bss) {
1079 ni = ieee80211_dup_bss(vap, wh->i_addr2);
1080 if (ni == NULL) {
1081 /* NB: no way to return an error */
1082 return;
1083 }
1084#ifdef IEEE80211_DEBUG
1085 allocbs = 1;
1086#endif
1087 } else {
1088 if ((ni->ni_flags & IEEE80211_NODE_AREF) == 0)
1089 (void) ieee80211_ref_node(ni);
1090#ifdef IEEE80211_DEBUG
1091 allocbs = 0;
1092#endif
1093 }
1094 /*
1095 * Mark the node as referenced to reflect that it's
1096 * reference count has been bumped to insure it remains
1097 * after the transaction completes.
1098 */
1099 ni->ni_flags |= IEEE80211_NODE_AREF;
1100 /*
1101 * Mark the node as requiring a valid association id
1102 * before outbound traffic is permitted.
1103 */
1104 ni->ni_flags |= IEEE80211_NODE_ASSOCID;
1105 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
1106 ni->ni_noise = nf;
1107 if (!ieee80211_alloc_challenge(ni)) {
1108 /* NB: don't return error so they rexmit */
1109 return;
1110 }
1111 net80211_get_random_bytes(ni->ni_challenge,
1112 IEEE80211_CHALLENGE_LEN);
1113 IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH,
1114 ni, "shared key %sauth request", allocbs ? "" : "re");
1115 /*
1116 * When the ACL policy is set to RADIUS we defer the
1117 * authorization to a user agent. Dispatch an event,
1118 * a subsequent MLME call will decide the fate of the
1119 * station. If the user agent is not present then the
1120 * node will be reclaimed due to inactivity.
1121 */
1122 if (vap->iv_acl != NULL &&
1123 vap->iv_acl->iac_getpolicy(vap) == IEEE80211_MACCMD_POLICY_RADIUS) {
1124 IEEE80211_NOTE_MAC(vap,
1125 IEEE80211_MSG_AUTH | IEEE80211_MSG_ACL,
1126 ni->ni_macaddr,
1127 "%s", "station authentication defered (radius acl)");
1128 ieee80211_notify_node_auth(ni);
1129 return;
1130 }
1131 break;
1132 }
1133 case IEEE80211_AUTH_SHARED_RESPONSE:
1134 if (ni == vap->iv_bss) {
1135 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1136 ni->ni_macaddr, "shared key response",
1137 "%s", "unknown station");
1138 /* NB: don't send a response */
1139 return;
1140 }
1141 if (ni->ni_challenge == NULL) {
1142 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1143 ni->ni_macaddr, "shared key response",
1144 "%s", "no challenge recorded");
1145 vap->iv_stats.is_rx_bad_auth++;
1146 estatus = IEEE80211_STATUS_CHALLENGE;
1147 goto bad;
1148 }
1149 if (memcmp(ni->ni_challenge, &challenge[2],
1150 challenge[1]) != 0) {
1151 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1152 ni->ni_macaddr, "shared key response",
1153 "%s", "challenge mismatch");
1154 vap->iv_stats.is_rx_auth_fail++;
1155 estatus = IEEE80211_STATUS_CHALLENGE;
1156 goto bad;
1157 }
1158 IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH,
1159 ni, "%s", "station authenticated (shared key)");
1160 ieee80211_node_authorize(ni);
1161 break;
1162 default:
1163 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
1164 ni->ni_macaddr, "shared key auth",
1165 "bad seq %d", seq);
1166 vap->iv_stats.is_rx_bad_auth++;
1167 estatus = IEEE80211_STATUS_SEQUENCE;
1168 goto bad;
1169 }
1170 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_AUTH, seq + 1);
1171 return;
1172bad:
1173 /*
1174 * Send an error response; but only when operating as an AP.
1175 */
1176 /* XXX hack to workaround calling convention */
1177 ieee80211_send_error(ni, wh->i_addr2,
1178 IEEE80211_FC0_SUBTYPE_AUTH,
1179 (seq + 1) | (estatus<<16));
1180}
1181
1182/*
1183 * Convert a WPA cipher selector OUI to an internal
1184 * cipher algorithm. Where appropriate we also
1185 * record any key length.
1186 */
1187static int
1188wpa_cipher(const uint8_t *sel, uint8_t *keylen, uint8_t *cipher)
1189{
1190#define WPA_SEL(x) (((x)<<24)|WPA_OUI)
1191 uint32_t w = le32dec(sel);
1192
1193 switch (w) {
1194 case WPA_SEL(WPA_CSE_NULL):
1195 *cipher = IEEE80211_CIPHER_NONE;
1196 break;
1197 case WPA_SEL(WPA_CSE_WEP40):
1198 if (keylen)
1199 *keylen = 40 / NBBY;
1200 *cipher = IEEE80211_CIPHER_WEP;
1201 break;
1202 case WPA_SEL(WPA_CSE_WEP104):
1203 if (keylen)
1204 *keylen = 104 / NBBY;
1205 *cipher = IEEE80211_CIPHER_WEP;
1206 break;
1207 case WPA_SEL(WPA_CSE_TKIP):
1208 *cipher = IEEE80211_CIPHER_TKIP;
1209 break;
1210 case WPA_SEL(WPA_CSE_CCMP):
1211 *cipher = IEEE80211_CIPHER_AES_CCM;
1212 break;
1213 default:
1214 return (EINVAL);
1215 }
1216
1217 return (0);
1218#undef WPA_SEL
1219}
1220
1221/*
1222 * Convert a WPA key management/authentication algorithm
1223 * to an internal code.
1224 */
1225static int
1226wpa_keymgmt(const uint8_t *sel)
1227{
1228#define WPA_SEL(x) (((x)<<24)|WPA_OUI)
1229 uint32_t w = le32dec(sel);
1230
1231 switch (w) {
1232 case WPA_SEL(WPA_ASE_8021X_UNSPEC):
1233 return WPA_ASE_8021X_UNSPEC;
1234 case WPA_SEL(WPA_ASE_8021X_PSK):
1235 return WPA_ASE_8021X_PSK;
1236 case WPA_SEL(WPA_ASE_NONE):
1237 return WPA_ASE_NONE;
1238 }
1239 return 0; /* NB: so is discarded */
1240#undef WPA_SEL
1241}
1242
1243/*
1244 * Parse a WPA information element to collect parameters.
1245 * Note that we do not validate security parameters; that
1246 * is handled by the authenticator; the parsing done here
1247 * is just for internal use in making operational decisions.
1248 */
1249static int
1250ieee80211_parse_wpa(struct ieee80211vap *vap, const uint8_t *frm,
1251 struct ieee80211_rsnparms *rsn, const struct ieee80211_frame *wh)
1252{
1253 uint8_t len = frm[1];
1254 uint32_t w;
1255 int error, n;
1256
1257 /*
1258 * Check the length once for fixed parts: OUI, type,
1259 * version, mcast cipher, and 2 selector counts.
1260 * Other, variable-length data, must be checked separately.
1261 */
1262 if ((vap->iv_flags & IEEE80211_F_WPA1) == 0) {
1263 IEEE80211_DISCARD_IE(vap,
1264 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1265 wh, "WPA", "not WPA, flags 0x%x", vap->iv_flags);
1266 return IEEE80211_REASON_IE_INVALID;
1267 }
1268 if (len < 14) {
1269 IEEE80211_DISCARD_IE(vap,
1270 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1271 wh, "WPA", "too short, len %u", len);
1272 return IEEE80211_REASON_IE_INVALID;
1273 }
1274 frm += 6, len -= 4; /* NB: len is payload only */
1275 /* NB: iswpaoui already validated the OUI and type */
1276 w = le16dec(frm);
1277 if (w != WPA_VERSION) {
1278 IEEE80211_DISCARD_IE(vap,
1279 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1280 wh, "WPA", "bad version %u", w);
1281 return IEEE80211_REASON_IE_INVALID;
1282 }
1283 frm += 2, len -= 2;
1284
1285 memset(rsn, 0, sizeof(*rsn));
1286
1287 /* multicast/group cipher */
1288 error = wpa_cipher(frm, &rsn->rsn_mcastkeylen, &rsn->rsn_mcastcipher);
1289 if (error != 0) {
1290 IEEE80211_DISCARD_IE(vap,
1291 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1292 wh, "WPA", "unknown mcast cipher suite %08X",
1293 le32dec(frm));
1294 return IEEE80211_REASON_GROUP_CIPHER_INVALID;
1295 }
1296 frm += 4, len -= 4;
1297
1298 /* unicast ciphers */
1299 n = le16dec(frm);
1300 frm += 2, len -= 2;
1301 if (len < n*4+2) {
1302 IEEE80211_DISCARD_IE(vap,
1303 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1304 wh, "WPA", "ucast cipher data too short; len %u, n %u",
1305 len, n);
1306 return IEEE80211_REASON_IE_INVALID;
1307 }
1308 w = 0;
1309 for (; n > 0; n--) {
1310 uint8_t cipher;
1311
1312 error = wpa_cipher(frm, &rsn->rsn_ucastkeylen, &cipher);
1313 if (error == 0)
1314 w |= 1 << cipher;
1315
1316 frm += 4, len -= 4;
1317 }
1318 if (w == 0) {
1319 IEEE80211_DISCARD_IE(vap,
1320 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1321 wh, "WPA", "no usable pairwise cipher suite found (w=%d)",
1322 w);
1323 return IEEE80211_REASON_PAIRWISE_CIPHER_INVALID;
1324 }
1325 /* XXX other? */
1326 if (w & (1 << IEEE80211_CIPHER_AES_CCM))
1327 rsn->rsn_ucastcipher = IEEE80211_CIPHER_AES_CCM;
1328 else
1329 rsn->rsn_ucastcipher = IEEE80211_CIPHER_TKIP;
1330
1331 /* key management algorithms */
1332 n = le16dec(frm);
1333 frm += 2, len -= 2;
1334 if (len < n*4) {
1335 IEEE80211_DISCARD_IE(vap,
1336 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1337 wh, "WPA", "key mgmt alg data too short; len %u, n %u",
1338 len, n);
1339 return IEEE80211_REASON_IE_INVALID;
1340 }
1341 w = 0;
1342 for (; n > 0; n--) {
1343 w |= wpa_keymgmt(frm);
1344 frm += 4, len -= 4;
1345 }
1346 if (w & WPA_ASE_8021X_UNSPEC)
1347 rsn->rsn_keymgmt = WPA_ASE_8021X_UNSPEC;
1348 else
1349 rsn->rsn_keymgmt = WPA_ASE_8021X_PSK;
1350
1351 if (len > 2) /* optional capabilities */
1352 rsn->rsn_caps = le16dec(frm);
1353
1354 return 0;
1355}
1356
1357/*
1358 * Convert an RSN cipher selector OUI to an internal
1359 * cipher algorithm. Where appropriate we also
1360 * record any key length.
1361 */
1362static int
1363rsn_cipher(const uint8_t *sel, uint8_t *keylen, uint8_t *cipher)
1364{
1365#define RSN_SEL(x) (((x)<<24)|RSN_OUI)
1366 uint32_t w = le32dec(sel);
1367
1368 switch (w) {
1369 case RSN_SEL(RSN_CSE_NULL):
1370 *cipher = IEEE80211_CIPHER_NONE;
1371 break;
1372 case RSN_SEL(RSN_CSE_WEP40):
1373 if (keylen)
1374 *keylen = 40 / NBBY;
1375 *cipher = IEEE80211_CIPHER_WEP;
1376 break;
1377 case RSN_SEL(RSN_CSE_WEP104):
1378 if (keylen)
1379 *keylen = 104 / NBBY;
1380 *cipher = IEEE80211_CIPHER_WEP;
1381 break;
1382 case RSN_SEL(RSN_CSE_TKIP):
1383 *cipher = IEEE80211_CIPHER_TKIP;
1384 break;
1385 case RSN_SEL(RSN_CSE_CCMP):
1386 *cipher = IEEE80211_CIPHER_AES_CCM;
1387 break;
1388 case RSN_SEL(RSN_CSE_WRAP):
1389 *cipher = IEEE80211_CIPHER_AES_OCB;
1390 break;
1391 default:
1392 return (EINVAL);
1393 }
1394
1395 return (0);
1396#undef WPA_SEL
1397}
1398
1399/*
1400 * Convert an RSN key management/authentication algorithm
1401 * to an internal code.
1402 */
1403static int
1404rsn_keymgmt(const uint8_t *sel)
1405{
1406#define RSN_SEL(x) (((x)<<24)|RSN_OUI)
1407 uint32_t w = le32dec(sel);
1408
1409 switch (w) {
1410 case RSN_SEL(RSN_ASE_8021X_UNSPEC):
1411 return RSN_ASE_8021X_UNSPEC;
1412 case RSN_SEL(RSN_ASE_8021X_PSK):
1413 return RSN_ASE_8021X_PSK;
1414 case RSN_SEL(RSN_ASE_NONE):
1415 return RSN_ASE_NONE;
1416 }
1417 return 0; /* NB: so is discarded */
1418#undef RSN_SEL
1419}
1420
1421/*
1422 * Parse a WPA/RSN information element to collect parameters
1423 * and validate the parameters against what has been
1424 * configured for the system.
1425 */
1426static int
1427ieee80211_parse_rsn(struct ieee80211vap *vap, const uint8_t *frm,
1428 struct ieee80211_rsnparms *rsn, const struct ieee80211_frame *wh)
1429{
1430 uint8_t len = frm[1];
1431 uint32_t w;
1432 int error, n;
1433
1434 /*
1435 * Check the length once for fixed parts:
1436 * version, mcast cipher, and 2 selector counts.
1437 * Other, variable-length data, must be checked separately.
1438 */
1439 if ((vap->iv_flags & IEEE80211_F_WPA2) == 0) {
1440 IEEE80211_DISCARD_IE(vap,
1441 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1442 wh, "WPA", "not RSN, flags 0x%x", vap->iv_flags);
1443 return IEEE80211_REASON_IE_INVALID;
1444 }
1445 /* XXX may be shorter */
1446 if (len < 10) {
1447 IEEE80211_DISCARD_IE(vap,
1448 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1449 wh, "RSN", "too short, len %u", len);
1450 return IEEE80211_REASON_IE_INVALID;
1451 }
1452 frm += 2;
1453 w = le16dec(frm);
1454 if (w != RSN_VERSION) {
1455 IEEE80211_DISCARD_IE(vap,
1456 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1457 wh, "RSN", "bad version %u", w);
1458 return IEEE80211_REASON_UNSUPP_RSN_IE_VERSION;
1459 }
1460 frm += 2, len -= 2;
1461
1462 memset(rsn, 0, sizeof(*rsn));
1463
1464 /* multicast/group cipher */
1465 error = rsn_cipher(frm, &rsn->rsn_mcastkeylen, &rsn->rsn_mcastcipher);
1466 if (error != 0) {
1467 IEEE80211_DISCARD_IE(vap,
1468 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1469 wh, "RSN", "unknown mcast cipher suite %08X",
1470 le32dec(frm));
1471 return IEEE80211_REASON_GROUP_CIPHER_INVALID;
1472 }
1473 if (rsn->rsn_mcastcipher == IEEE80211_CIPHER_NONE) {
1474 IEEE80211_DISCARD_IE(vap,
1475 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1476 wh, "RSN", "invalid mcast cipher suite %d",
1477 rsn->rsn_mcastcipher);
1478 return IEEE80211_REASON_GROUP_CIPHER_INVALID;
1479 }
1480 frm += 4, len -= 4;
1481
1482 /* unicast ciphers */
1483 n = le16dec(frm);
1484 frm += 2, len -= 2;
1485 if (len < n*4+2) {
1486 IEEE80211_DISCARD_IE(vap,
1487 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1488 wh, "RSN", "ucast cipher data too short; len %u, n %u",
1489 len, n);
1490 return IEEE80211_REASON_IE_INVALID;
1491 }
1492 w = 0;
1493
1494 for (; n > 0; n--) {
1495 uint8_t cipher;
1496
1497 error = rsn_cipher(frm, &rsn->rsn_ucastkeylen, &cipher);
1498 if (error == 0)
1499 w |= 1 << cipher;
1500
1501 frm += 4, len -= 4;
1502 }
1503 if (w & (1 << IEEE80211_CIPHER_AES_CCM))
1504 rsn->rsn_ucastcipher = IEEE80211_CIPHER_AES_CCM;
1505 else if (w & (1 << IEEE80211_CIPHER_AES_OCB))
1506 rsn->rsn_ucastcipher = IEEE80211_CIPHER_AES_OCB;
1507 else if (w & (1 << IEEE80211_CIPHER_TKIP))
1508 rsn->rsn_ucastcipher = IEEE80211_CIPHER_TKIP;
1509 else if ((w & (1 << IEEE80211_CIPHER_NONE)) &&
1510 (rsn->rsn_mcastcipher == IEEE80211_CIPHER_WEP ||
1511 rsn->rsn_mcastcipher == IEEE80211_CIPHER_TKIP))
1512 rsn->rsn_ucastcipher = IEEE80211_CIPHER_NONE;
1513 else {
1514 IEEE80211_DISCARD_IE(vap,
1515 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1516 wh, "RSN", "no usable pairwise cipher suite found (w=%d)",
1517 w);
1518 return IEEE80211_REASON_PAIRWISE_CIPHER_INVALID;
1519 }
1520
1521 /* key management algorithms */
1522 n = le16dec(frm);
1523 frm += 2, len -= 2;
1524 if (len < n*4) {
1525 IEEE80211_DISCARD_IE(vap,
1526 IEEE80211_MSG_ELEMID | IEEE80211_MSG_WPA,
1527 wh, "RSN", "key mgmt alg data too short; len %u, n %u",
1528 len, n);
1529 return IEEE80211_REASON_IE_INVALID;
1530 }
1531 w = 0;
1532 for (; n > 0; n--) {
1533 w |= rsn_keymgmt(frm);
1534 frm += 4, len -= 4;
1535 }
1536 if (w & RSN_ASE_8021X_UNSPEC)
1537 rsn->rsn_keymgmt = RSN_ASE_8021X_UNSPEC;
1538 else
1539 rsn->rsn_keymgmt = RSN_ASE_8021X_PSK;
1540
1541 /* optional RSN capabilities */
1542 if (len > 2)
1543 rsn->rsn_caps = le16dec(frm);
1544 /* XXXPMKID */
1545
1546 return 0;
1547}
1548
1549/*
1550 * WPA/802.11i association request processing.
1551 */
1552static int
1553wpa_assocreq(struct ieee80211_node *ni, struct ieee80211_rsnparms *rsnparms,
1554 const struct ieee80211_frame *wh, const uint8_t *wpa,
1555 const uint8_t *rsn, uint16_t capinfo)
1556{
1557 struct ieee80211vap *vap = ni->ni_vap;
1558 uint8_t reason;
1559 int badwparsn;
1560
1561 ni->ni_flags &= ~(IEEE80211_NODE_WPS|IEEE80211_NODE_TSN);
1562 if (wpa == NULL && rsn == NULL) {
1563 if (vap->iv_flags_ext & IEEE80211_FEXT_WPS) {
1564 /*
1565 * W-Fi Protected Setup (WPS) permits
1566 * clients to associate and pass EAPOL frames
1567 * to establish initial credentials.
1568 */
1569 ni->ni_flags |= IEEE80211_NODE_WPS;
1570 return 1;
1571 }
1572 if ((vap->iv_flags_ext & IEEE80211_FEXT_TSN) &&
1573 (capinfo & IEEE80211_CAPINFO_PRIVACY)) {
1574 /*
1575 * Transitional Security Network. Permits clients
1576 * to associate and use WEP while WPA is configured.
1577 */
1578 ni->ni_flags |= IEEE80211_NODE_TSN;
1579 return 1;
1580 }
1581 IEEE80211_DISCARD(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_WPA,
1582 wh, NULL, "%s", "no WPA/RSN IE in association request");
1583 vap->iv_stats.is_rx_assoc_badwpaie++;
1584 reason = IEEE80211_REASON_IE_INVALID;
1585 goto bad;
1586 }
1587 /* assert right association security credentials */
1588 badwparsn = 0; /* NB: to silence compiler */
1589 switch (vap->iv_flags & IEEE80211_F_WPA) {
1590 case IEEE80211_F_WPA1:
1591 badwparsn = (wpa == NULL);
1592 break;
1593 case IEEE80211_F_WPA2:
1594 badwparsn = (rsn == NULL);
1595 break;
1596 case IEEE80211_F_WPA1|IEEE80211_F_WPA2:
1597 badwparsn = (wpa == NULL && rsn == NULL);
1598 break;
1599 }
1600 if (badwparsn) {
1601 IEEE80211_DISCARD(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_WPA,
1602 wh, NULL,
1603 "%s", "missing WPA/RSN IE in association request");
1604 vap->iv_stats.is_rx_assoc_badwpaie++;
1605 reason = IEEE80211_REASON_IE_INVALID;
1606 goto bad;
1607 }
1608 /*
1609 * Parse WPA/RSN information element.
1610 */
1611 if (wpa != NULL)
1612 reason = ieee80211_parse_wpa(vap, wpa, rsnparms, wh);
1613 else
1614 reason = ieee80211_parse_rsn(vap, rsn, rsnparms, wh);
1615 if (reason != 0) {
1616 /* XXX wpa->rsn fallback? */
1617 /* XXX distinguish WPA/RSN? */
1618 vap->iv_stats.is_rx_assoc_badwpaie++;
1619 goto bad;
1620 }
1621 IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_WPA, ni,
1622 "%s ie: mc %u/%u uc %u/%u key %u caps 0x%x",
1623 wpa != NULL ? "WPA" : "RSN",
1624 rsnparms->rsn_mcastcipher, rsnparms->rsn_mcastkeylen,
1625 rsnparms->rsn_ucastcipher, rsnparms->rsn_ucastkeylen,
1626 rsnparms->rsn_keymgmt, rsnparms->rsn_caps);
1627
1628 return 1;
1629bad:
1630 ieee80211_node_deauth(ni, reason);
1631 return 0;
1632}
1633
1634/* XXX find a better place for definition */
1635struct l2_update_frame {
1636 struct ether_header eh;
1637 uint8_t dsap;
1638 uint8_t ssap;
1639 uint8_t control;
1640 uint8_t xid[3];
1641} __packed;
1642
1643/*
1644 * Deliver a TGf L2UF frame on behalf of a station.
1645 * This primes any bridge when the station is roaming
1646 * between ap's on the same wired network.
1647 */
1648static void
1649ieee80211_deliver_l2uf(struct ieee80211_node *ni)
1650{
1651 struct ieee80211vap *vap = ni->ni_vap;
1652 struct ifnet *ifp = vap->iv_ifp;
1653 struct mbuf *m;
1654 struct l2_update_frame *l2uf;
1655 struct ether_header *eh;
1656
1657 m = m_gethdr(M_NOWAIT, MT_DATA);
1658 if (m == NULL) {
1659 IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC, ni,
1660 "%s", "no mbuf for l2uf frame");
1661 vap->iv_stats.is_rx_nobuf++; /* XXX not right */
1662 return;
1663 }
1664 l2uf = mtod(m, struct l2_update_frame *);
1665 eh = &l2uf->eh;
1666 /* dst: Broadcast address */
1667 IEEE80211_ADDR_COPY(eh->ether_dhost, ifp->if_broadcastaddr);
1668 /* src: associated STA */
1669 IEEE80211_ADDR_COPY(eh->ether_shost, ni->ni_macaddr);
1670 eh->ether_type = htons(sizeof(*l2uf) - sizeof(*eh));
1671
1672 l2uf->dsap = 0;
1673 l2uf->ssap = 0;
1674 l2uf->control = 0xf5;
1675 l2uf->xid[0] = 0x81;
1676 l2uf->xid[1] = 0x80;
1677 l2uf->xid[2] = 0x00;
1678
1679 m->m_pkthdr.len = m->m_len = sizeof(*l2uf);
1680 hostap_deliver_data(vap, ni, m);
1681}
1682
1683static void
1684ratesetmismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
1685 int reassoc, int resp, const char *tag, int rate)
1686{
1687 IEEE80211_NOTE_MAC(ni->ni_vap, IEEE80211_MSG_ANY, wh->i_addr2,
1688 "deny %s request, %s rate set mismatch, rate/MCS %d",
1689 reassoc ? "reassoc" : "assoc", tag, rate & IEEE80211_RATE_VAL);
1690 IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_BASIC_RATE);
1691 ieee80211_node_leave(ni);
1692}
1693
1694static void
1695capinfomismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
1696 int reassoc, int resp, const char *tag, int capinfo)
1697{
1698 struct ieee80211vap *vap = ni->ni_vap;
1699
1700 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, wh->i_addr2,
1701 "deny %s request, %s mismatch 0x%x",
1702 reassoc ? "reassoc" : "assoc", tag, capinfo);
1703 IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_CAPINFO);
1704 ieee80211_node_leave(ni);
1705 vap->iv_stats.is_rx_assoc_capmismatch++;
1706}
1707
1708static void
1709htcapmismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
1710 int reassoc, int resp)
1711{
1712 IEEE80211_NOTE_MAC(ni->ni_vap, IEEE80211_MSG_ANY, wh->i_addr2,
1713 "deny %s request, %s missing HT ie", reassoc ? "reassoc" : "assoc");
1714 /* XXX no better code */
1715 IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_MISSING_HT_CAPS);
1716 ieee80211_node_leave(ni);
1717}
1718
1719static void
1720authalgreject(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
1721 int algo, int seq, int status)
1722{
1723 struct ieee80211vap *vap = ni->ni_vap;
1724
1725 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
1726 wh, NULL, "unsupported alg %d", algo);
1727 vap->iv_stats.is_rx_auth_unsupported++;
1728 ieee80211_send_error(ni, wh->i_addr2, IEEE80211_FC0_SUBTYPE_AUTH,
1729 seq | (status << 16));
1730}
1731
1732static __inline int
1733ishtmixed(const uint8_t *ie)
1734{
1735 const struct ieee80211_ie_htinfo *ht =
1736 (const struct ieee80211_ie_htinfo *) ie;
1737 return (ht->hi_byte2 & IEEE80211_HTINFO_OPMODE) ==
1738 IEEE80211_HTINFO_OPMODE_MIXED;
1739}
1740
1741static int
1742is11bclient(const uint8_t *rates, const uint8_t *xrates)
1743{
1744 static const uint32_t brates = (1<<2*1)|(1<<2*2)|(1<<11)|(1<<2*11);
1745 int i;
1746
1747 /* NB: the 11b clients we care about will not have xrates */
1748 if (xrates != NULL || rates == NULL)
1749 return 0;
1750 for (i = 0; i < rates[1]; i++) {
1751 int r = rates[2+i] & IEEE80211_RATE_VAL;
1752 if (r > 2*11 || ((1<<r) & brates) == 0)
1753 return 0;
1754 }
1755 return 1;
1756}
1757
1758static void
1759hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
1760 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf)
1761{
1762 struct ieee80211vap *vap = ni->ni_vap;
1763 struct ieee80211com *ic = ni->ni_ic;
1764 struct ieee80211_frame *wh;
1765 uint8_t *frm, *efrm, *sfrm;
1766 uint8_t *ssid, *rates, *xrates, *wpa, *rsn, *wme, *ath, *htcap;
1767 uint8_t *vhtcap, *vhtinfo;
1768 int reassoc, resp;
1769 uint8_t rate;
1770
1771 wh = mtod(m0, struct ieee80211_frame *);
1772 frm = (uint8_t *)&wh[1];
1773 efrm = mtod(m0, uint8_t *) + m0->m_len;
1774 switch (subtype) {
1775 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
1776 /*
1777 * We process beacon/probe response frames when scanning;
1778 * otherwise we check beacon frames for overlapping non-ERP
1779 * BSS in 11g and/or overlapping legacy BSS when in HT.
1780 */
1781 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
1782 vap->iv_stats.is_rx_mgtdiscard++;
1783 return;
1784 }
1785 /* FALLTHROUGH */
1786 case IEEE80211_FC0_SUBTYPE_BEACON: {
1787 struct ieee80211_scanparams scan;
1788
1789 /* NB: accept off-channel frames */
1790 /* XXX TODO: use rxstatus to determine off-channel details */
1791 if (ieee80211_parse_beacon(ni, m0, ic->ic_curchan, &scan) &~ IEEE80211_BPARSE_OFFCHAN)
1792 return;
1793 /*
1794 * Count frame now that we know it's to be processed.
1795 */
1796 if (subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
1797 vap->iv_stats.is_rx_beacon++; /* XXX remove */
1798 IEEE80211_NODE_STAT(ni, rx_beacons);
1799 } else
1800 IEEE80211_NODE_STAT(ni, rx_proberesp);
1801 /*
1802 * If scanning, just pass information to the scan module.
1803 */
1804 if (ic->ic_flags & IEEE80211_F_SCAN) {
1805 if (scan.status == 0 && /* NB: on channel */
1806 (ic->ic_flags_ext & IEEE80211_FEXT_PROBECHAN)) {
1807 /*
1808 * Actively scanning a channel marked passive;
1809 * send a probe request now that we know there
1810 * is 802.11 traffic present.
1811 *
1812 * XXX check if the beacon we recv'd gives
1813 * us what we need and suppress the probe req
1814 */
1815 ieee80211_probe_curchan(vap, 1);
1816 ic->ic_flags_ext &= ~IEEE80211_FEXT_PROBECHAN;
1817 }
1818 ieee80211_add_scan(vap, ic->ic_curchan, &scan, wh,
1819 subtype, rssi, nf);
1820 return;
1821 }
1822 /*
1823 * Check beacon for overlapping bss w/ non ERP stations.
1824 * If we detect one and protection is configured but not
1825 * enabled, enable it and start a timer that'll bring us
1826 * out if we stop seeing the bss.
1827 */
1828 if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan) &&
1829 scan.status == 0 && /* NB: on-channel */
1830 ((scan.erp & 0x100) == 0 || /* NB: no ERP, 11b sta*/
1831 (scan.erp & IEEE80211_ERP_NON_ERP_PRESENT))) {
1832 vap->iv_lastnonerp = ticks;
1833 vap->iv_flags_ext |= IEEE80211_FEXT_NONERP_PR;
1834 /*
1835 * XXX TODO: this may need to check all VAPs?
1836 */
1837 if (vap->iv_protmode != IEEE80211_PROT_NONE &&
1838 (vap->iv_flags & IEEE80211_F_USEPROT) == 0) {
1839 IEEE80211_NOTE_FRAME(vap,
1840 IEEE80211_MSG_ASSOC, wh,
1841 "non-ERP present on channel %d "
1842 "(saw erp 0x%x from channel %d), "
1843 "enable use of protection",
1844 ic->ic_curchan->ic_ieee,
1845 scan.erp, scan.chan);
1846 vap->iv_flags |= IEEE80211_F_USEPROT;
1847 ieee80211_vap_update_erp_protmode(vap);
1848 }
1849 }
1850 /*
1851 * Check beacon for non-HT station on HT channel
1852 * and update HT BSS occupancy as appropriate.
1853 */
1854 if (IEEE80211_IS_CHAN_HT(ic->ic_curchan)) {
1855 if (scan.status & IEEE80211_BPARSE_OFFCHAN) {
1856 /*
1857 * Off control channel; only check frames
1858 * that come in the extension channel when
1859 * operating w/ HT40.
1860 */
1861 if (!IEEE80211_IS_CHAN_HT40(ic->ic_curchan))
1862 break;
1863 if (scan.chan != ic->ic_curchan->ic_extieee)
1864 break;
1865 }
1866 if (scan.htinfo == NULL) {
1867 ieee80211_htprot_update(vap,
1868 IEEE80211_HTINFO_OPMODE_PROTOPT |
1869 IEEE80211_HTINFO_NONHT_PRESENT);
1870 } else if (ishtmixed(scan.htinfo)) {
1871 /* XXX? take NONHT_PRESENT from beacon? */
1872 ieee80211_htprot_update(vap,
1873 IEEE80211_HTINFO_OPMODE_MIXED |
1874 IEEE80211_HTINFO_NONHT_PRESENT);
1875 }
1876 }
1877 break;
1878 }
1879
1880 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
1881 if (vap->iv_state != IEEE80211_S_RUN) {
1882 vap->iv_stats.is_rx_mgtdiscard++;
1883 return;
1884 }
1885 /*
1886 * Consult the ACL policy module if setup.
1887 */
1888 if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) {
1889 IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL,
1890 wh, NULL, "%s", "disallowed by ACL");
1891 vap->iv_stats.is_rx_acl++;
1892 return;
1893 }
1894 /*
1895 * prreq frame format
1896 * [tlv] ssid
1897 * [tlv] supported rates
1898 * [tlv] extended supported rates
1899 */
1900 ssid = rates = xrates = NULL;
1901 while (efrm - frm > 1) {
1902 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return);
1903 switch (*frm) {
1904 case IEEE80211_ELEMID_SSID:
1905 ssid = frm;
1906 break;
1907 case IEEE80211_ELEMID_RATES:
1908 rates = frm;
1909 break;
1910 case IEEE80211_ELEMID_XRATES:
1911 xrates = frm;
1912 break;
1913 }
1914 frm += frm[1] + 2;
1915 }
1916 IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE, return);
1917 if (xrates != NULL)
1918 IEEE80211_VERIFY_ELEMENT(xrates,
1919 IEEE80211_RATE_MAXSIZE - rates[1], return);
1920 IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN, return);
1921 IEEE80211_VERIFY_SSID(vap->iv_bss, ssid, return);
1922 if ((vap->iv_flags & IEEE80211_F_HIDESSID) && ssid[1] == 0) {
1923 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1924 wh, NULL,
1925 "%s", "no ssid with ssid suppression enabled");
1926 vap->iv_stats.is_rx_ssidmismatch++; /*XXX*/
1927 return;
1928 }
1929
1930 /* XXX find a better class or define it's own */
1931 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
1932 "%s", "recv probe req");
1933 /*
1934 * Some legacy 11b clients cannot hack a complete
1935 * probe response frame. When the request includes
1936 * only a bare-bones rate set, communicate this to
1937 * the transmit side.
1938 */
1939 ieee80211_send_proberesp(vap, wh->i_addr2,
1940 is11bclient(rates, xrates) ? IEEE80211_SEND_LEGACY_11B : 0);
1941 break;
1942
1943 case IEEE80211_FC0_SUBTYPE_AUTH: {
1944 uint16_t algo, seq, status;
1945
1946 if (vap->iv_state != IEEE80211_S_RUN) {
1947 vap->iv_stats.is_rx_mgtdiscard++;
1948 return;
1949 }
1950 if (!IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_bss->ni_bssid)) {
1951 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
1952 wh, NULL, "%s", "wrong bssid");
1953 vap->iv_stats.is_rx_wrongbss++; /*XXX unique stat?*/
1954 return;
1955 }
1956 /*
1957 * auth frame format
1958 * [2] algorithm
1959 * [2] sequence
1960 * [2] status
1961 * [tlv*] challenge
1962 */
1963 IEEE80211_VERIFY_LENGTH(efrm - frm, 6, return);
1964 algo = le16toh(*(uint16_t *)frm);
1965 seq = le16toh(*(uint16_t *)(frm + 2));
1966 status = le16toh(*(uint16_t *)(frm + 4));
1967 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_AUTH, wh->i_addr2,
1968 "recv auth frame with algorithm %d seq %d", algo, seq);
1969 /*
1970 * Consult the ACL policy module if setup.
1971 */
1972 if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) {
1973 IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL,
1974 wh, NULL, "%s", "disallowed by ACL");
1975 vap->iv_stats.is_rx_acl++;
1976 ieee80211_send_error(ni, wh->i_addr2,
1977 IEEE80211_FC0_SUBTYPE_AUTH,
1978 (seq+1) | (IEEE80211_STATUS_UNSPECIFIED<<16));
1979 return;
1980 }
1981 if (vap->iv_flags & IEEE80211_F_COUNTERM) {
1982 IEEE80211_DISCARD(vap,
1983 IEEE80211_MSG_AUTH | IEEE80211_MSG_CRYPTO,
1984 wh, NULL, "%s", "TKIP countermeasures enabled");
1985 vap->iv_stats.is_rx_auth_countermeasures++;
1986 ieee80211_send_error(ni, wh->i_addr2,
1987 IEEE80211_FC0_SUBTYPE_AUTH,
1988 IEEE80211_REASON_MIC_FAILURE);
1989 return;
1990 }
1991 if (algo == IEEE80211_AUTH_ALG_SHARED)
1992 hostap_auth_shared(ni, wh, frm + 6, efrm, rssi, nf,
1993 seq, status);
1994 else if (algo == IEEE80211_AUTH_ALG_OPEN)
1995 hostap_auth_open(ni, wh, rssi, nf, seq, status);
1996 else if (algo == IEEE80211_AUTH_ALG_LEAP) {
1997 authalgreject(ni, wh, algo,
1998 seq+1, IEEE80211_STATUS_ALG);
1999 return;
2000 } else {
2001 /*
2002 * We assume that an unknown algorithm is the result
2003 * of a decryption failure on a shared key auth frame;
2004 * return a status code appropriate for that instead
2005 * of IEEE80211_STATUS_ALG.
2006 *
2007 * NB: a seq# of 4 is intentional; the decrypted
2008 * frame likely has a bogus seq value.
2009 */
2010 authalgreject(ni, wh, algo,
2011 4, IEEE80211_STATUS_CHALLENGE);
2012 return;
2013 }
2014 break;
2015 }
2016
2017 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2018 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: {
2019 uint16_t capinfo, lintval;
2020 struct ieee80211_rsnparms rsnparms;
2021
2022 if (vap->iv_state != IEEE80211_S_RUN) {
2023 vap->iv_stats.is_rx_mgtdiscard++;
2024 return;
2025 }
2026 if (!IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_bss->ni_bssid)) {
2027 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
2028 wh, NULL, "%s", "wrong bssid");
2029 vap->iv_stats.is_rx_assoc_bss++;
2030 return;
2031 }
2032 if (subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) {
2033 reassoc = 1;
2034 resp = IEEE80211_FC0_SUBTYPE_REASSOC_RESP;
2035 } else {
2036 reassoc = 0;
2037 resp = IEEE80211_FC0_SUBTYPE_ASSOC_RESP;
2038 }
2039 if (ni == vap->iv_bss) {
2040 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, wh->i_addr2,
2041 "deny %s request, sta not authenticated",
2042 reassoc ? "reassoc" : "assoc");
2043 ieee80211_send_error(ni, wh->i_addr2,
2044 IEEE80211_FC0_SUBTYPE_DEAUTH,
2045 IEEE80211_REASON_ASSOC_NOT_AUTHED);
2046 vap->iv_stats.is_rx_assoc_notauth++;
2047 return;
2048 }
2049
2050 /*
2051 * asreq frame format
2052 * [2] capability information
2053 * [2] listen interval
2054 * [6*] current AP address (reassoc only)
2055 * [tlv] ssid
2056 * [tlv] supported rates
2057 * [tlv] extended supported rates
2058 * [tlv] WPA or RSN
2059 * [tlv] HT capabilities
2060 * [tlv] Atheros capabilities
2061 */
2062 IEEE80211_VERIFY_LENGTH(efrm - frm, (reassoc ? 10 : 4), return);
2063 capinfo = le16toh(*(uint16_t *)frm); frm += 2;
2064 lintval = le16toh(*(uint16_t *)frm); frm += 2;
2065 if (reassoc)
2066 frm += 6; /* ignore current AP info */
2067 ssid = rates = xrates = wpa = rsn = wme = ath = htcap = NULL;
2068 vhtcap = vhtinfo = NULL;
2069 sfrm = frm;
2070 while (efrm - frm > 1) {
2071 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return);
2072 switch (*frm) {
2073 case IEEE80211_ELEMID_SSID:
2074 ssid = frm;
2075 break;
2076 case IEEE80211_ELEMID_RATES:
2077 rates = frm;
2078 break;
2079 case IEEE80211_ELEMID_XRATES:
2080 xrates = frm;
2081 break;
2082 case IEEE80211_ELEMID_RSN:
2083 rsn = frm;
2084 break;
2085 case IEEE80211_ELEMID_HTCAP:
2086 htcap = frm;
2087 break;
2088 case IEEE80211_ELEMID_VHT_CAP:
2089 vhtcap = frm;
2090 break;
2091 case IEEE80211_ELEMID_VHT_OPMODE:
2092 vhtinfo = frm;
2093 break;
2094 case IEEE80211_ELEMID_VENDOR:
2095 if (iswpaoui(frm))
2096 wpa = frm;
2097 else if (iswmeinfo(frm))
2098 wme = frm;
2099#ifdef IEEE80211_SUPPORT_SUPERG
2100 else if (isatherosoui(frm))
2101 ath = frm;
2102#endif
2103 else if (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) {
2104 if (ishtcapoui(frm) && htcap == NULL)
2105 htcap = frm;
2106 }
2107 break;
2108 }
2109 frm += frm[1] + 2;
2110 }
2111 IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE, return);
2112 if (xrates != NULL)
2113 IEEE80211_VERIFY_ELEMENT(xrates,
2114 IEEE80211_RATE_MAXSIZE - rates[1], return);
2115 IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN, return);
2116 IEEE80211_VERIFY_SSID(vap->iv_bss, ssid, return);
2117 if (htcap != NULL) {
2118 IEEE80211_VERIFY_LENGTH(htcap[1],
2119 htcap[0] == IEEE80211_ELEMID_VENDOR ?
2120 4 + sizeof(struct ieee80211_ie_htcap)-2 :
2121 sizeof(struct ieee80211_ie_htcap)-2,
2122 return); /* XXX just NULL out? */
2123 }
2124
2125 /* Validate VHT IEs */
2126 if (vhtcap != NULL) {
2127 IEEE80211_VERIFY_LENGTH(vhtcap[1],
2128 sizeof(struct ieee80211_ie_vhtcap) - 2,
2129 return);
2130 }
2131 if (vhtinfo != NULL) {
2132 IEEE80211_VERIFY_LENGTH(vhtinfo[1],
2133 sizeof(struct ieee80211_ie_vht_operation) - 2,
2134 return);
2135 }
2136
2137 if ((vap->iv_flags & IEEE80211_F_WPA) &&
2138 !wpa_assocreq(ni, &rsnparms, wh, wpa, rsn, capinfo))
2139 return;
2140 /* discard challenge after association */
2141 if (ni->ni_challenge != NULL) {
2142 IEEE80211_FREE(ni->ni_challenge, M_80211_NODE);
2143 ni->ni_challenge = NULL;
2144 }
2145 /* NB: 802.11 spec says to ignore station's privacy bit */
2146 if ((capinfo & IEEE80211_CAPINFO_ESS) == 0) {
2147 capinfomismatch(ni, wh, reassoc, resp,
2148 "capability", capinfo);
2149 return;
2150 }
2151 /*
2152 * Disallow re-associate w/ invalid slot time setting.
2153 */
2154 if (ni->ni_associd != 0 &&
2155 IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) &&
2156 ((ni->ni_capinfo ^ capinfo) & IEEE80211_CAPINFO_SHORT_SLOTTIME)) {
2157 capinfomismatch(ni, wh, reassoc, resp,
2158 "slot time", capinfo);
2159 return;
2160 }
2161 rate = ieee80211_setup_rates(ni, rates, xrates,
2162 IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE |
2163 IEEE80211_F_DONEGO | IEEE80211_F_DODEL);
2164 if (rate & IEEE80211_RATE_BASIC) {
2165 ratesetmismatch(ni, wh, reassoc, resp, "legacy", rate);
2166 vap->iv_stats.is_rx_assoc_norate++;
2167 return;
2168 }
2169 /*
2170 * If constrained to 11g-only stations reject an
2171 * 11b-only station. We cheat a bit here by looking
2172 * at the max negotiated xmit rate and assuming anyone
2173 * with a best rate <24Mb/s is an 11b station.
2174 */
2175 if ((vap->iv_flags & IEEE80211_F_PUREG) && rate < 48) {
2176 ratesetmismatch(ni, wh, reassoc, resp, "11g", rate);
2177 vap->iv_stats.is_rx_assoc_norate++;
2178 return;
2179 }
2180
2181 /*
2182 * Do HT rate set handling and setup HT node state.
2183 */
2184 ni->ni_chan = vap->iv_bss->ni_chan;
2185
2186 /* VHT */
2187 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan) &&
2188 vhtcap != NULL &&
2189 vhtinfo != NULL) {
2190 /* XXX TODO; see below */
2191 printf("%s: VHT TODO!\n", __func__);
2192 ieee80211_vht_node_init(ni);
2193 ieee80211_vht_update_cap(ni, vhtcap, vhtinfo);
2194 } else if (ni->ni_flags & IEEE80211_NODE_VHT)
2195 ieee80211_vht_node_cleanup(ni);
2196
2197 /* HT */
2198 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && htcap != NULL) {
2199 rate = ieee80211_setup_htrates(ni, htcap,
2200 IEEE80211_F_DOFMCS | IEEE80211_F_DONEGO |
2201 IEEE80211_F_DOBRS);
2202 if (rate & IEEE80211_RATE_BASIC) {
2203 ratesetmismatch(ni, wh, reassoc, resp,
2204 "HT", rate);
2205 vap->iv_stats.is_ht_assoc_norate++;
2206 return;
2207 }
2208 ieee80211_ht_node_init(ni);
2209 ieee80211_ht_updatehtcap(ni, htcap);
2210 } else if (ni->ni_flags & IEEE80211_NODE_HT)
2211 ieee80211_ht_node_cleanup(ni);
2212
2213 /* Finally - this will use HT/VHT info to change node channel */
2214 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && htcap != NULL) {
2215 ieee80211_ht_updatehtcap_final(ni);
2216 }
2217
2218#ifdef IEEE80211_SUPPORT_SUPERG
2219 /* Always do ff node cleanup; for A-MSDU */
2220 ieee80211_ff_node_cleanup(ni);
2221#endif
2222 /*
2223 * Allow AMPDU operation only with unencrypted traffic
2224 * or AES-CCM; the 11n spec only specifies these ciphers
2225 * so permitting any others is undefined and can lead
2226 * to interoperability problems.
2227 */
2228 if ((ni->ni_flags & IEEE80211_NODE_HT) &&
2229 (((vap->iv_flags & IEEE80211_F_WPA) &&
2230 rsnparms.rsn_ucastcipher != IEEE80211_CIPHER_AES_CCM) ||
2231 (vap->iv_flags & (IEEE80211_F_WPA|IEEE80211_F_PRIVACY)) == IEEE80211_F_PRIVACY)) {
2232 IEEE80211_NOTE(vap,
2233 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
2234 "disallow HT use because WEP or TKIP requested, "
2235 "capinfo 0x%x ucastcipher %d", capinfo,
2236 rsnparms.rsn_ucastcipher);
2237 ieee80211_ht_node_cleanup(ni);
2238#ifdef IEEE80211_SUPPORT_SUPERG
2239 /* Always do ff node cleanup; for A-MSDU */
2240 ieee80211_ff_node_cleanup(ni);
2241#endif
2242 vap->iv_stats.is_ht_assoc_downgrade++;
2243 }
2244 /*
2245 * If constrained to 11n-only stations reject legacy stations.
2246 */
2247 if ((vap->iv_flags_ht & IEEE80211_FHT_PUREN) &&
2248 (ni->ni_flags & IEEE80211_NODE_HT) == 0) {
2249 htcapmismatch(ni, wh, reassoc, resp);
2250 vap->iv_stats.is_ht_assoc_nohtcap++;
2251 return;
2252 }
2253 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
2254 ni->ni_noise = nf;
2255 ni->ni_intval = lintval;
2256 ni->ni_capinfo = capinfo;
2257 ni->ni_fhdwell = vap->iv_bss->ni_fhdwell;
2258 ni->ni_fhindex = vap->iv_bss->ni_fhindex;
2259 /*
2260 * Store the IEs.
2261 * XXX maybe better to just expand
2262 */
2263 if (ieee80211_ies_init(&ni->ni_ies, sfrm, efrm - sfrm)) {
2264#define setie(_ie, _off) ieee80211_ies_setie(ni->ni_ies, _ie, _off)
2265 if (wpa != NULL)
2266 setie(wpa_ie, wpa - sfrm);
2267 if (rsn != NULL)
2268 setie(rsn_ie, rsn - sfrm);
2269 if (htcap != NULL)
2270 setie(htcap_ie, htcap - sfrm);
2271 if (wme != NULL) {
2272 setie(wme_ie, wme - sfrm);
2273 /*
2274 * Mark node as capable of QoS.
2275 */
2276 ni->ni_flags |= IEEE80211_NODE_QOS;
2277 if (ieee80211_parse_wmeie(wme, wh, ni) > 0) {
2278 if (ni->ni_uapsd != 0)
2279 ni->ni_flags |=
2280 IEEE80211_NODE_UAPSD;
2281 else
2282 ni->ni_flags &=
2283 ~IEEE80211_NODE_UAPSD;
2284 }
2285 } else
2286 ni->ni_flags &=
2287 ~(IEEE80211_NODE_QOS |
2288 IEEE80211_NODE_UAPSD);
2289#ifdef IEEE80211_SUPPORT_SUPERG
2290 if (ath != NULL) {
2291 setie(ath_ie, ath - sfrm);
2292 /*
2293 * Parse ATH station parameters.
2294 */
2295 ieee80211_parse_ath(ni, ni->ni_ies.ath_ie);
2296 } else
2297#endif
2298 ni->ni_ath_flags = 0;
2299#undef setie
2300 } else {
2301 ni->ni_flags &= ~IEEE80211_NODE_QOS;
2302 ni->ni_flags &= ~IEEE80211_NODE_UAPSD;
2303 ni->ni_ath_flags = 0;
2304 }
2305 ieee80211_node_join(ni, resp);
2306 ieee80211_deliver_l2uf(ni);
2307 break;
2308 }
2309
2310 case IEEE80211_FC0_SUBTYPE_DEAUTH:
2311 case IEEE80211_FC0_SUBTYPE_DISASSOC: {
2312#ifdef IEEE80211_DEBUG
2313 uint16_t reason;
2314#endif
2315
2316 if (vap->iv_state != IEEE80211_S_RUN ||
2317 /* NB: can happen when in promiscuous mode */
2318 !IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr)) {
2319 vap->iv_stats.is_rx_mgtdiscard++;
2320 break;
2321 }
2322 /*
2323 * deauth/disassoc frame format
2324 * [2] reason
2325 */
2326 IEEE80211_VERIFY_LENGTH(efrm - frm, 2, return);
2327#ifdef IEEE80211_DEBUG
2328 reason = le16toh(*(uint16_t *)frm);
2329#endif
2330 if (subtype == IEEE80211_FC0_SUBTYPE_DEAUTH) {
2331 vap->iv_stats.is_rx_deauth++;
2332 IEEE80211_NODE_STAT(ni, rx_deauth);
2333 } else {
2334 vap->iv_stats.is_rx_disassoc++;
2335 IEEE80211_NODE_STAT(ni, rx_disassoc);
2336 }
2337 IEEE80211_NOTE(vap, IEEE80211_MSG_AUTH, ni,
2338 "recv %s (reason: %d (%s))",
2339 ieee80211_mgt_subtype_name(subtype),
2340 reason, ieee80211_reason_to_string(reason));
2341 if (ni != vap->iv_bss)
2342 ieee80211_node_leave(ni);
2343 break;
2344 }
2345
2346 case IEEE80211_FC0_SUBTYPE_ACTION:
2347 case IEEE80211_FC0_SUBTYPE_ACTION_NOACK:
2348 if (ni == vap->iv_bss) {
2349 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
2350 wh, NULL, "%s", "unknown node");
2351 vap->iv_stats.is_rx_mgtdiscard++;
2352 } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1) &&
2353 !IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2354 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
2355 wh, NULL, "%s", "not for us");
2356 vap->iv_stats.is_rx_mgtdiscard++;
2357 } else if (vap->iv_state != IEEE80211_S_RUN) {
2358 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
2359 wh, NULL, "wrong state %s",
2360 ieee80211_state_name[vap->iv_state]);
2361 vap->iv_stats.is_rx_mgtdiscard++;
2362 } else {
2363 if (ieee80211_parse_action(ni, m0) == 0)
2364 (void)ic->ic_recv_action(ni, wh, frm, efrm);
2365 }
2366 break;
2367
2368 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2369 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
2370 case IEEE80211_FC0_SUBTYPE_TIMING_ADV:
2371 case IEEE80211_FC0_SUBTYPE_ATIM:
2372 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
2373 wh, NULL, "%s", "not handled");
2374 vap->iv_stats.is_rx_mgtdiscard++;
2375 break;
2376
2377 default:
2378 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
2379 wh, "mgt", "subtype 0x%x not handled", subtype);
2380 vap->iv_stats.is_rx_badsubtype++;
2381 break;
2382 }
2383}
2384
2385static void
2386hostap_recv_ctl(struct ieee80211_node *ni, struct mbuf *m, int subtype)
2387{
2388 switch (subtype) {
2389 case IEEE80211_FC0_SUBTYPE_PS_POLL:
2390 ni->ni_vap->iv_recv_pspoll(ni, m);
2391 break;
2392 case IEEE80211_FC0_SUBTYPE_BAR:
2393 ieee80211_recv_bar(ni, m);
2394 break;
2395 }
2396}
2397
2398/*
2399 * Process a received ps-poll frame.
2400 */
2401void
2402ieee80211_recv_pspoll(struct ieee80211_node *ni, struct mbuf *m0)
2403{
2404 struct ieee80211vap *vap = ni->ni_vap;
2405 struct ieee80211com *ic = vap->iv_ic;
2406 struct ieee80211_frame_min *wh;
2407 struct mbuf *m;
2408 uint16_t aid;
2409 int qlen;
2410
2411 wh = mtod(m0, struct ieee80211_frame_min *);
2412 if (ni->ni_associd == 0) {
2413 IEEE80211_DISCARD(vap,
2414 IEEE80211_MSG_POWER | IEEE80211_MSG_DEBUG,
2415 (struct ieee80211_frame *) wh, NULL,
2416 "%s", "unassociated station");
2417 vap->iv_stats.is_ps_unassoc++;
2418 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
2419 IEEE80211_REASON_NOT_ASSOCED);
2420 return;
2421 }
2422
2423 aid = le16toh(*(uint16_t *)wh->i_dur);
2424 if (aid != ni->ni_associd) {
2425 IEEE80211_DISCARD(vap,
2426 IEEE80211_MSG_POWER | IEEE80211_MSG_DEBUG,
2427 (struct ieee80211_frame *) wh, NULL,
2428 "aid mismatch: sta aid 0x%x poll aid 0x%x",
2429 ni->ni_associd, aid);
2430 vap->iv_stats.is_ps_badaid++;
2431 /*
2432 * NB: We used to deauth the station but it turns out
2433 * the Blackberry Curve 8230 (and perhaps other devices)
2434 * sometimes send the wrong AID when WME is negotiated.
2435 * Being more lenient here seems ok as we already check
2436 * the station is associated and we only return frames
2437 * queued for the station (i.e. we don't use the AID).
2438 */
2439 return;
2440 }
2441
2442 /* Okay, take the first queued packet and put it out... */
2443 m = ieee80211_node_psq_dequeue(ni, &qlen);
2444 if (m == NULL) {
2445 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_POWER, wh->i_addr2,
2446 "%s", "recv ps-poll, but queue empty");
2447 ieee80211_send_nulldata(ieee80211_ref_node(ni));
2448 vap->iv_stats.is_ps_qempty++; /* XXX node stat */
2449 if (vap->iv_set_tim != NULL)
2450 vap->iv_set_tim(ni, 0); /* just in case */
2451 return;
2452 }
2453 /*
2454 * If there are more packets, set the more packets bit
2455 * in the packet dispatched to the station; otherwise
2456 * turn off the TIM bit.
2457 */
2458 if (qlen != 0) {
2459 IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni,
2460 "recv ps-poll, send packet, %u still queued", qlen);
2461 m->m_flags |= M_MORE_DATA;
2462 } else {
2463 IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni,
2464 "%s", "recv ps-poll, send packet, queue empty");
2465 if (vap->iv_set_tim != NULL)
2466 vap->iv_set_tim(ni, 0);
2467 }
2468 m->m_flags |= M_PWR_SAV; /* bypass PS handling */
2469
2470 /*
2471 * Do the right thing; if it's an encap'ed frame then
2472 * call ieee80211_parent_xmitpkt() else
2473 * call ieee80211_vap_xmitpkt().
2474 */
2475 if (m->m_flags & M_ENCAP) {
2476 (void) ieee80211_parent_xmitpkt(ic, m);
2477 } else {
2478 (void) ieee80211_vap_xmitpkt(vap, m);
2479 }
2480}
IEEE80211_IS_CHAN_HT
#define IEEE80211_IS_CHAN_HT(_c)
Definition: _ieee80211.h:291
IEEE80211_RX_F_DECRYPTED
#define IEEE80211_RX_F_DECRYPTED
Definition: _ieee80211.h:570
IEEE80211_CHAN_QUARTER
#define IEEE80211_CHAN_QUARTER
Definition: _ieee80211.h:184
IEEE80211_PROT_NONE
@ IEEE80211_PROT_NONE
Definition: _ieee80211.h:100
IEEE80211_RATE_MAXSIZE
#define IEEE80211_RATE_MAXSIZE
Definition: _ieee80211.h:383
IEEE80211_CHAN_HT
#define IEEE80211_CHAN_HT
Definition: _ieee80211.h:202
IEEE80211_CHAN_5GHZ
#define IEEE80211_CHAN_5GHZ
Definition: _ieee80211.h:177
IEEE80211_CHAN_2GHZ
#define IEEE80211_CHAN_2GHZ
Definition: _ieee80211.h:176
IEEE80211_IS_CHAN_RADAR
#define IEEE80211_IS_CHAN_RADAR(_c)
Definition: _ieee80211.h:353
IEEE80211_AUTH_SHARED
@ IEEE80211_AUTH_SHARED
Definition: _ieee80211.h:115
IEEE80211_AUTH_8021X
@ IEEE80211_AUTH_8021X
Definition: _ieee80211.h:116
IEEE80211_AUTH_AUTO
@ IEEE80211_AUTH_AUTO
Definition: _ieee80211.h:117
IEEE80211_CHAN_ANYC
#define IEEE80211_CHAN_ANYC
Definition: _ieee80211.h:165
IEEE80211_CHAN_HALF
#define IEEE80211_CHAN_HALF
Definition: _ieee80211.h:183
IEEE80211_IS_CHAN_HT40
#define IEEE80211_IS_CHAN_HT40(_c)
Definition: _ieee80211.h:295
IEEE80211_M_HOSTAP
@ IEEE80211_M_HOSTAP
Definition: _ieee80211.h:90
IEEE80211_IS_CHAN_VHT
#define IEEE80211_IS_CHAN_VHT(_c)
Definition: _ieee80211.h:316
IEEE80211_IS_CHAN_ANYG
#define IEEE80211_IS_CHAN_ANYG(_c)
Definition: _ieee80211.h:253
ieee80211_chan2ieee
int ieee80211_chan2ieee(struct ieee80211com *ic, const struct ieee80211_channel *c)
Definition: ieee80211.c:1076
RSN_CSE_WEP104
#define RSN_CSE_WEP104
Definition: ieee80211.h:1192
WPA_ASE_8021X_UNSPEC
#define WPA_ASE_8021X_UNSPEC
Definition: ieee80211.h:1179
IEEE80211_FC0_SUBTYPE_ASSOC_REQ
#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ
Definition: ieee80211.h:127
WPA_CSE_NULL
#define WPA_CSE_NULL
Definition: ieee80211.h:1172
IEEE80211_FC0_SUBTYPE_ACTION
#define IEEE80211_FC0_SUBTYPE_ACTION
Definition: ieee80211.h:139
RSN_CSE_TKIP
#define RSN_CSE_TKIP
Definition: ieee80211.h:1189
IEEE80211_CAPINFO_PRIVACY
#define IEEE80211_CAPINFO_PRIVACY
Definition: ieee80211.h:571
IEEE80211_CAPINFO_ESS
#define IEEE80211_CAPINFO_ESS
Definition: ieee80211.h:567
RSN_CSE_WRAP
#define RSN_CSE_WRAP
Definition: ieee80211.h:1190
WPA_VERSION
#define WPA_VERSION
Definition: ieee80211.h:1170
IEEE80211_FC0_TYPE_CTL
#define IEEE80211_FC0_TYPE_CTL
Definition: ieee80211.h:121
RSN_ASE_8021X_UNSPEC
#define RSN_ASE_8021X_UNSPEC
Definition: ieee80211.h:1195
IEEE80211_AUTH_ALG_SHARED
#define IEEE80211_AUTH_ALG_SHARED
Definition: ieee80211.h:1227
IEEE80211_FC0_TYPE_MASK
#define IEEE80211_FC0_TYPE_MASK
Definition: ieee80211.h:118
RSN_ASE_NONE
#define RSN_ASE_NONE
Definition: ieee80211.h:1194
IEEE80211_FC0_SUBTYPE_ATIM
#define IEEE80211_FC0_SUBTYPE_ATIM
Definition: ieee80211.h:135
IEEE80211_FC0_SUBTYPE_REASSOC_REQ
#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ
Definition: ieee80211.h:129
RSN_VERSION
#define RSN_VERSION
Definition: ieee80211.h:1185
RSN_CSE_WEP40
#define RSN_CSE_WEP40
Definition: ieee80211.h:1188
IEEE80211_FC0_SUBTYPE_PROBE_REQ
#define IEEE80211_FC0_SUBTYPE_PROBE_REQ
Definition: ieee80211.h:131
IEEE80211_HTINFO_OPMODE_MIXED
#define IEEE80211_HTINFO_OPMODE_MIXED
Definition: ieee80211.h:727
WME_AC_VI
#define WME_AC_VI
Definition: ieee80211.h:1209
IEEE80211_FC1_PROTECTED
#define IEEE80211_FC1_PROTECTED
Definition: ieee80211.h:195
IEEE80211_CAPINFO_SHORT_SLOTTIME
#define IEEE80211_CAPINFO_SHORT_SLOTTIME
Definition: ieee80211.h:577
IEEE80211_HAS_SEQ
#define IEEE80211_HAS_SEQ(type, subtype)
Definition: ieee80211.h:198
IEEE80211_FC0_SUBTYPE_ASSOC_RESP
#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP
Definition: ieee80211.h:128
IEEE80211_FC0_VERSION_MASK
#define IEEE80211_FC0_VERSION_MASK
Definition: ieee80211.h:115
IEEE80211_FC0_SUBTYPE_DEAUTH
#define IEEE80211_FC0_SUBTYPE_DEAUTH
Definition: ieee80211.h:138
IEEE80211_FC0_SUBTYPE_PS_POLL
#define IEEE80211_FC0_SUBTYPE_PS_POLL
Definition: ieee80211.h:145
IEEE80211_FC1_DIR_DSTODS
#define IEEE80211_FC1_DIR_DSTODS
Definition: ieee80211.h:186
IEEE80211_RATE_VAL
#define IEEE80211_RATE_VAL
Definition: ieee80211.h:1146
WPA_CSE_WEP40
#define WPA_CSE_WEP40
Definition: ieee80211.h:1173
IEEE80211_FC0_SUBTYPE_BAR
#define IEEE80211_FC0_SUBTYPE_BAR
Definition: ieee80211.h:143
IEEE80211_FC0_TYPE_MGT
#define IEEE80211_FC0_TYPE_MGT
Definition: ieee80211.h:120
IEEE80211_FC0_SUBTYPE_PROBE_RESP
#define IEEE80211_FC0_SUBTYPE_PROBE_RESP
Definition: ieee80211.h:132
IEEE80211_RATE_BASIC
#define IEEE80211_RATE_BASIC
Definition: ieee80211.h:1145
IEEE80211_FC0_TYPE_DATA
#define IEEE80211_FC0_TYPE_DATA
Definition: ieee80211.h:122
IEEE80211_ERP_NON_ERP_PRESENT
#define IEEE80211_ERP_NON_ERP_PRESENT
Definition: ieee80211.h:1150
IEEE80211_HTINFO_NONHT_PRESENT
#define IEEE80211_HTINFO_NONHT_PRESENT
Definition: ieee80211.h:730
IEEE80211_IS_MULTICAST
#define IEEE80211_IS_MULTICAST(_a)
Definition: ieee80211.h:39
IEEE80211_QOS_HAS_SEQ
#define IEEE80211_QOS_HAS_SEQ(wh)
Definition: ieee80211.h:244
IEEE80211_AUTH_OPEN_REQUEST
@ IEEE80211_AUTH_OPEN_REQUEST
Definition: ieee80211.h:1231
IEEE80211_FC0_SUBTYPE_TIMING_ADV
#define IEEE80211_FC0_SUBTYPE_TIMING_ADV
Definition: ieee80211.h:133
IEEE80211_FC0_SUBTYPE_DISASSOC
#define IEEE80211_FC0_SUBTYPE_DISASSOC
Definition: ieee80211.h:136
TID_TO_WME_AC
#define TID_TO_WME_AC(_tid)
Definition: ieee80211.h:319
IEEE80211_FC1_DIR_NODS
#define IEEE80211_FC1_DIR_NODS
Definition: ieee80211.h:183
RSN_ASE_8021X_PSK
#define RSN_ASE_8021X_PSK
Definition: ieee80211.h:1196
IEEE80211_FC1_DIR_MASK
#define IEEE80211_FC1_DIR_MASK
Definition: ieee80211.h:182
WPA_CSE_TKIP
#define WPA_CSE_TKIP
Definition: ieee80211.h:1174
IEEE80211_FC0_VERSION_0
#define IEEE80211_FC0_VERSION_0
Definition: ieee80211.h:117
IEEE80211_AUTH_SHARED_REQUEST
@ IEEE80211_AUTH_SHARED_REQUEST
Definition: ieee80211.h:1236
IEEE80211_AUTH_SHARED_CHALLENGE
@ IEEE80211_AUTH_SHARED_CHALLENGE
Definition: ieee80211.h:1237
IEEE80211_AUTH_SHARED_RESPONSE
@ IEEE80211_AUTH_SHARED_RESPONSE
Definition: ieee80211.h:1238
IEEE80211_FC0_SUBTYPE_NODATA
#define IEEE80211_FC0_SUBTYPE_NODATA
Definition: ieee80211.h:156
IEEE80211_AUTH_ALG_OPEN
#define IEEE80211_AUTH_ALG_OPEN
Definition: ieee80211.h:1226
IEEE80211_FC0_SUBTYPE_REASSOC_RESP
#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP
Definition: ieee80211.h:130
IEEE80211_FC0_SUBTYPE_QOS
#define IEEE80211_FC0_SUBTYPE_QOS
Definition: ieee80211.h:160
RSN_CSE_NULL
#define RSN_CSE_NULL
Definition: ieee80211.h:1187
IEEE80211_FC1_PWR_MGT
#define IEEE80211_FC1_PWR_MGT
Definition: ieee80211.h:193
IEEE80211_FC0_SUBTYPE_ACTION_NOACK
#define IEEE80211_FC0_SUBTYPE_ACTION_NOACK
Definition: ieee80211.h:140
IEEE80211_FC0_SUBTYPE_QOS_NULL
#define IEEE80211_FC0_SUBTYPE_QOS_NULL
Definition: ieee80211.h:164
RSN_CSE_CCMP
#define RSN_CSE_CCMP
Definition: ieee80211.h:1191
IEEE80211_FC1_DIR_TODS
#define IEEE80211_FC1_DIR_TODS
Definition: ieee80211.h:184
IEEE80211_NWID_LEN
#define IEEE80211_NWID_LEN
Definition: ieee80211.h:219
IEEE80211_REASON_IE_INVALID
@ IEEE80211_REASON_IE_INVALID
Definition: ieee80211.h:1264
IEEE80211_REASON_MIC_FAILURE
@ IEEE80211_REASON_MIC_FAILURE
Definition: ieee80211.h:1265
IEEE80211_STATUS_CAPINFO
@ IEEE80211_STATUS_CAPINFO
Definition: ieee80211.h:1303
IEEE80211_STATUS_ALG
@ IEEE80211_STATUS_ALG
Definition: ieee80211.h:1306
IEEE80211_REASON_UNSUPP_RSN_IE_VERSION
@ IEEE80211_REASON_UNSUPP_RSN_IE_VERSION
Definition: ieee80211.h:1272
IEEE80211_STATUS_UNSPECIFIED
@ IEEE80211_STATUS_UNSPECIFIED
Definition: ieee80211.h:1302
IEEE80211_STATUS_BASIC_RATE
@ IEEE80211_STATUS_BASIC_RATE
Definition: ieee80211.h:1311
IEEE80211_STATUS_CHALLENGE
@ IEEE80211_STATUS_CHALLENGE
Definition: ieee80211.h:1308
IEEE80211_REASON_ASSOC_NOT_AUTHED
@ IEEE80211_REASON_ASSOC_NOT_AUTHED
Definition: ieee80211.h:1261
IEEE80211_STATUS_MISSING_HT_CAPS
@ IEEE80211_STATUS_MISSING_HT_CAPS
Definition: ieee80211.h:1320
IEEE80211_STATUS_SEQUENCE
@ IEEE80211_STATUS_SEQUENCE
Definition: ieee80211.h:1307
IEEE80211_REASON_NOT_AUTHED
@ IEEE80211_REASON_NOT_AUTHED
Definition: ieee80211.h:1258
IEEE80211_REASON_NOT_ASSOCED
@ IEEE80211_REASON_NOT_ASSOCED
Definition: ieee80211.h:1259
IEEE80211_REASON_GROUP_CIPHER_INVALID
@ IEEE80211_REASON_GROUP_CIPHER_INVALID
Definition: ieee80211.h:1269
IEEE80211_REASON_PAIRWISE_CIPHER_INVALID
@ IEEE80211_REASON_PAIRWISE_CIPHER_INVALID
Definition: ieee80211.h:1270
IEEE80211_REASON_ASSOC_LEAVE
@ IEEE80211_REASON_ASSOC_LEAVE
Definition: ieee80211.h:1260
IEEE80211_QOS_AMSDU
#define IEEE80211_QOS_AMSDU
Definition: ieee80211.h:226
WPA_CSE_WEP104
#define WPA_CSE_WEP104
Definition: ieee80211.h:1176
IEEE80211_ELEMID_VENDOR
@ IEEE80211_ELEMID_VENDOR
Definition: ieee80211.h:980
IEEE80211_ELEMID_RSN
@ IEEE80211_ELEMID_RSN
Definition: ieee80211.h:962
IEEE80211_ELEMID_HTCAP
@ IEEE80211_ELEMID_HTCAP
Definition: ieee80211.h:959
IEEE80211_ELEMID_RATES
@ IEEE80211_ELEMID_RATES
Definition: ieee80211.h:936
IEEE80211_ELEMID_CHALLENGE
@ IEEE80211_ELEMID_CHALLENGE
Definition: ieee80211.h:946
IEEE80211_ELEMID_VHT_OPMODE
@ IEEE80211_ELEMID_VHT_OPMODE
Definition: ieee80211.h:1013
IEEE80211_ELEMID_XRATES
@ IEEE80211_ELEMID_XRATES
Definition: ieee80211.h:963
IEEE80211_ELEMID_VHT_CAP
@ IEEE80211_ELEMID_VHT_CAP
Definition: ieee80211.h:1012
IEEE80211_ELEMID_SSID
@ IEEE80211_ELEMID_SSID
Definition: ieee80211.h:935
WPA_CSE_CCMP
#define WPA_CSE_CCMP
Definition: ieee80211.h:1175
IEEE80211_FC0_SUBTYPE_MASK
#define IEEE80211_FC0_SUBTYPE_MASK
Definition: ieee80211.h:124
IEEE80211_HTINFO_OPMODE
#define IEEE80211_HTINFO_OPMODE
Definition: ieee80211.h:722
WPA_ASE_NONE
#define WPA_ASE_NONE
Definition: ieee80211.h:1178
IEEE80211_FC0_SUBTYPE_BEACON
#define IEEE80211_FC0_SUBTYPE_BEACON
Definition: ieee80211.h:134
IEEE80211_FC0_SUBTYPE_AUTH
#define IEEE80211_FC0_SUBTYPE_AUTH
Definition: ieee80211.h:137
IEEE80211_HTINFO_OPMODE_PROTOPT
#define IEEE80211_HTINFO_OPMODE_PROTOPT
Definition: ieee80211.h:725
IEEE80211_CHALLENGE_LEN
#define IEEE80211_CHALLENGE_LEN
Definition: ieee80211.h:1224
IEEE80211_AUTH_ALG_LEAP
#define IEEE80211_AUTH_ALG_LEAP
Definition: ieee80211.h:1228
WPA_ASE_8021X_PSK
#define WPA_ASE_8021X_PSK
Definition: ieee80211.h:1180
ieee80211_crypto_decap
int ieee80211_crypto_decap(struct ieee80211_node *ni, struct mbuf *m, int hdrlen, struct ieee80211_key **key)
Definition: ieee80211_crypto.c:606
ieee80211_crypto_demic
int ieee80211_crypto_demic(struct ieee80211vap *vap, struct ieee80211_key *k, struct mbuf *m, int force)
Definition: ieee80211_crypto.c:701
IEEE80211_CIPHER_WEP
#define IEEE80211_CIPHER_WEP
Definition: ieee80211_crypto.h:135
IEEE80211_CIPHER_NONE
#define IEEE80211_CIPHER_NONE
Definition: ieee80211_crypto.h:141
IEEE80211_CIPHER_AES_CCM
#define IEEE80211_CIPHER_AES_CCM
Definition: ieee80211_crypto.h:138
IEEE80211_CIPHER_AES_OCB
#define IEEE80211_CIPHER_AES_OCB
Definition: ieee80211_crypto.h:137
IEEE80211_CIPHER_TKIP
#define IEEE80211_CIPHER_TKIP
Definition: ieee80211_crypto.h:136
ieee80211_dfs_cac_start
void ieee80211_dfs_cac_start(struct ieee80211vap *vap)
Definition: ieee80211_dfs.c:187
ieee80211_dfs_cac_stop
void ieee80211_dfs_cac_stop(struct ieee80211vap *vap)
Definition: ieee80211_dfs.c:205
ieee80211_notify_node_auth
void ieee80211_notify_node_auth(struct ieee80211_node *ni)
Definition: ieee80211_freebsd.c:974
net80211_get_random_bytes
void net80211_get_random_bytes(void *p, size_t n)
Definition: ieee80211_freebsd.c:752
ieee80211_parent_xmitpkt
int ieee80211_parent_xmitpkt(struct ieee80211com *ic, struct mbuf *m)
Definition: ieee80211_freebsd.c:708
ieee80211_vap_xmitpkt
int ieee80211_vap_xmitpkt(struct ieee80211vap *vap, struct mbuf *m)
Definition: ieee80211_freebsd.c:735
M_MORE_DATA
#define M_MORE_DATA
Definition: ieee80211_freebsd.h:284
M_WEP
#define M_WEP
Definition: ieee80211_freebsd.h:298
IEEE80211_FREE
#define IEEE80211_FREE
Definition: ieee80211_freebsd.h:713
M_ENCAP
#define M_ENCAP
Definition: ieee80211_freebsd.h:281
IEEE80211_LOCK_ASSERT
#define IEEE80211_LOCK_ASSERT(_ic)
Definition: ieee80211_freebsd.h:74
M_AMPDU_MPDU
#define M_AMPDU_MPDU
Definition: ieee80211_freebsd.h:287
M_PWR_SAV
#define M_PWR_SAV
Definition: ieee80211_freebsd.h:283
M_AMPDU
#define M_AMPDU
Definition: ieee80211_freebsd.h:297
rsn_keymgmt
static int rsn_keymgmt(const uint8_t *sel)
Definition: ieee80211_hostap.c:1404
sta_disassoc
static void sta_disassoc(void *arg, struct ieee80211_node *ni)
Definition: ieee80211_hostap.c:112
hostap_vattach
static void hostap_vattach(struct ieee80211vap *)
Definition: ieee80211_hostap.c:100
is11bclient
static int is11bclient(const uint8_t *rates, const uint8_t *xrates)
Definition: ieee80211_hostap.c:1742
ieee80211_parse_wpa
static int ieee80211_parse_wpa(struct ieee80211vap *vap, const uint8_t *frm, struct ieee80211_rsnparms *rsn, const struct ieee80211_frame *wh)
Definition: ieee80211_hostap.c:1250
hostap_recv_ctl
static void hostap_recv_ctl(struct ieee80211_node *, struct mbuf *, int)
Definition: ieee80211_hostap.c:2386
hostap_input
static int hostap_input(struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_rx_stats *, int rssi, int nf)
Definition: ieee80211_hostap.c:475
authalgreject
static void authalgreject(struct ieee80211_node *ni, const struct ieee80211_frame *wh, int algo, int seq, int status)
Definition: ieee80211_hostap.c:1720
ratesetmismatch
static void ratesetmismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh, int reassoc, int resp, const char *tag, int rate)
Definition: ieee80211_hostap.c:1684
isbandchange
static int isbandchange(struct ieee80211com *ic)
Definition: ieee80211_hostap.c:149
ishtmixed
static __inline int ishtmixed(const uint8_t *ie)
Definition: ieee80211_hostap.c:1733
ieee80211_deliver_l2uf
static void ieee80211_deliver_l2uf(struct ieee80211_node *ni)
Definition: ieee80211_hostap.c:1649
ieee80211_parse_rsn
static int ieee80211_parse_rsn(struct ieee80211vap *vap, const uint8_t *frm, struct ieee80211_rsnparms *rsn, const struct ieee80211_frame *wh)
Definition: ieee80211_hostap.c:1427
wpa_cipher
static int wpa_cipher(const uint8_t *sel, uint8_t *keylen, uint8_t *cipher)
Definition: ieee80211_hostap.c:1188
sta_csa
static void sta_csa(void *arg, struct ieee80211_node *ni)
Definition: ieee80211_hostap.c:123
capinfomismatch
static void capinfomismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh, int reassoc, int resp, const char *tag, int capinfo)
Definition: ieee80211_hostap.c:1695
sta_drop
static void sta_drop(void *arg, struct ieee80211_node *ni)
Definition: ieee80211_hostap.c:136
hostap_deliver_data
static void hostap_deliver_data(struct ieee80211vap *, struct ieee80211_node *, struct mbuf *)
Definition: ieee80211_hostap.c:360
wpa_keymgmt
static int wpa_keymgmt(const uint8_t *sel)
Definition: ieee80211_hostap.c:1226
doprint
static __inline int doprint(struct ieee80211vap *vap, int subtype)
Definition: ieee80211_hostap.c:453
IEEE80211_RATE2MBS
#define IEEE80211_RATE2MBS(r)
Definition: ieee80211_hostap.c:70
__FBSDID
__FBSDID("$FreeBSD$")
setie
#define setie(_ie, _off)
hostap_auth_shared
static void hostap_auth_shared(struct ieee80211_node *ni, struct ieee80211_frame *wh, uint8_t *frm, uint8_t *efrm, int rssi, int nf, uint16_t seq, uint16_t status)
Definition: ieee80211_hostap.c:994
ieee80211_hostap_attach
void ieee80211_hostap_attach(struct ieee80211com *ic)
Definition: ieee80211_hostap.c:84
wpa_assocreq
static int wpa_assocreq(struct ieee80211_node *ni, struct ieee80211_rsnparms *rsnparms, const struct ieee80211_frame *wh, const uint8_t *wpa, const uint8_t *rsn, uint16_t capinfo)
Definition: ieee80211_hostap.c:1553
__packed
struct l2_update_frame __packed
WPA_SEL
#define WPA_SEL(x)
ieee80211_recv_pspoll
void ieee80211_recv_pspoll(struct ieee80211_node *ni, struct mbuf *m0)
Definition: ieee80211_hostap.c:2402
htcapmismatch
static void htcapmismatch(struct ieee80211_node *ni, const struct ieee80211_frame *wh, int reassoc, int resp)
Definition: ieee80211_hostap.c:1709
hostap_newstate
static int hostap_newstate(struct ieee80211vap *, enum ieee80211_state, int)
Definition: ieee80211_hostap.c:160
hostap_vdetach
static void hostap_vdetach(struct ieee80211vap *vap)
Definition: ieee80211_hostap.c:95
RSN_SEL
#define RSN_SEL(x)
ieee80211_hostap_detach
void ieee80211_hostap_detach(struct ieee80211com *ic)
Definition: ieee80211_hostap.c:90
hostap_auth_open
static void hostap_auth_open(struct ieee80211_node *ni, struct ieee80211_frame *wh, int rssi, int nf, uint16_t seq, uint16_t status)
Definition: ieee80211_hostap.c:916
rsn_cipher
static int rsn_cipher(const uint8_t *sel, uint8_t *keylen, uint8_t *cipher)
Definition: ieee80211_hostap.c:1363
hostap_recv_mgmt
static void hostap_recv_mgmt(struct ieee80211_node *, struct mbuf *, int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf)
Definition: ieee80211_hostap.c:1759
ieee80211_hostap.h
ieee80211_ht_adjust_channel
struct ieee80211_channel * ieee80211_ht_adjust_channel(struct ieee80211com *ic, struct ieee80211_channel *chan, int flags)
Definition: ieee80211_ht.c:1419
ieee80211_recv_bar
void ieee80211_recv_bar(struct ieee80211_node *ni, struct mbuf *m0)
Definition: ieee80211_ht.c:1228
ieee80211_ht_updatehtcap
void ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
Definition: ieee80211_ht.c:2058
ieee80211_htprot_update
void ieee80211_htprot_update(struct ieee80211vap *vap, int protmode)
Definition: ieee80211_ht.c:1623
ieee80211_ht_node_cleanup
void ieee80211_ht_node_cleanup(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1348
ieee80211_ht_node_init
void ieee80211_ht_node_init(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1308
ieee80211_ampdu_reorder
int ieee80211_ampdu_reorder(struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_ht.c:1002
ieee80211_setup_htrates
int ieee80211_setup_htrates(struct ieee80211_node *ni, const uint8_t *ie, int flags)
Definition: ieee80211_ht.c:2106
ieee80211_ht_updatehtcap_final
void ieee80211_ht_updatehtcap_final(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:2075
ieee80211_decap_amsdu
struct mbuf * ieee80211_decap_amsdu(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_ht.c:471
ieee80211_parse_action
int ieee80211_parse_action(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_input.c:784
ieee80211_send_error
void ieee80211_send_error(struct ieee80211_node *ni, const uint8_t mac[IEEE80211_ADDR_LEN], int subtype, int arg)
Definition: ieee80211_input.c:461
ieee80211_decap
struct mbuf * ieee80211_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen, uint8_t qos)
Definition: ieee80211_input.c:312
ieee80211_deliver_data
void ieee80211_deliver_data(struct ieee80211vap *vap, struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_input.c:275
ieee80211_alloc_challenge
int ieee80211_alloc_challenge(struct ieee80211_node *ni)
Definition: ieee80211_input.c:493
ieee80211_setup_rates
int ieee80211_setup_rates(struct ieee80211_node *ni, const uint8_t *rates, const uint8_t *xrates, int flags)
Definition: ieee80211_input.c:425
ieee80211_parse_beacon
int ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m, struct ieee80211_channel *rxchan, struct ieee80211_scanparams *scan)
Definition: ieee80211_input.c:516
ieee80211_defrag
struct mbuf * ieee80211_defrag(struct ieee80211_node *ni, struct mbuf *m, int hdrspace, int has_decrypted)
Definition: ieee80211_input.c:173
ieee80211_input.h
iswmeinfo
static __inline int iswmeinfo(const uint8_t *frm)
Definition: ieee80211_input.h:106
iswpaoui
static __inline int iswpaoui(const uint8_t *frm)
Definition: ieee80211_input.h:87
ieee80211_check_rxseq
static __inline int ieee80211_check_rxseq(struct ieee80211_node *ni, struct ieee80211_frame *wh, uint8_t *bssid, const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_input.h:195
IEEE80211_VERIFY_ELEMENT
#define IEEE80211_VERIFY_ELEMENT(__elem, __maxlen, _action)
Definition: ieee80211_input.h:33
isatherosoui
static __inline int isatherosoui(const uint8_t *frm)
Definition: ieee80211_input.h:113
ishtcapoui
static __inline int ishtcapoui(const uint8_t *frm)
Definition: ieee80211_input.h:125
IEEE80211_VERIFY_LENGTH
#define IEEE80211_VERIFY_LENGTH(_len, _minlen, _action)
Definition: ieee80211_input.h:47
IEEE80211_VERIFY_SSID
#define IEEE80211_VERIFY_SSID(_ni, _ssid, _action)
Definition: ieee80211_input.h:74
IEEE80211_MACCMD_POLICY_RADIUS
@ IEEE80211_MACCMD_POLICY_RADIUS
Definition: ieee80211_ioctl.h:332
ieee80211_node_set_chan
void ieee80211_node_set_chan(struct ieee80211_node *ni, struct ieee80211_channel *chan)
Definition: ieee80211_node.c:284
ieee80211_dup_bss
struct ieee80211_node * ieee80211_dup_bss(struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN])
Definition: ieee80211_node.c:1495
ieee80211_free_node
void ieee80211_free_node(struct ieee80211_node *ni)
Definition: ieee80211_node.c:2130
ieee80211_node_deauth
void ieee80211_node_deauth(struct ieee80211_node *ni, int reason)
Definition: ieee80211_node.c:1060
ieee80211_reset_bss
void ieee80211_reset_bss(struct ieee80211vap *vap)
Definition: ieee80211_node.c:445
ieee80211_find_vap_node
struct ieee80211_node * ieee80211_find_vap_node(struct ieee80211_node_table *nt, const struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN])
Definition: ieee80211_node.c:1668
ieee80211_node_authorize
void ieee80211_node_authorize(struct ieee80211_node *ni)
Definition: ieee80211_node.c:213
ieee80211_node_join
void ieee80211_node_join(struct ieee80211_node *ni, int resp)
Definition: ieee80211_node.c:2753
ieee80211_ies_init
int ieee80211_ies_init(struct ieee80211_ies *ies, const uint8_t *data, int len)
Definition: ieee80211_node.c:1093
ieee80211_node_leave
void ieee80211_node_leave(struct ieee80211_node *ni)
Definition: ieee80211_node.c:2944
ieee80211_iterate_nodes_vap
int ieee80211_iterate_nodes_vap(struct ieee80211_node_table *nt, struct ieee80211vap *vap, ieee80211_iter_func *f, void *arg)
Definition: ieee80211_node.c:2560
ieee80211_create_ibss
void ieee80211_create_ibss(struct ieee80211vap *vap, struct ieee80211_channel *chan)
Definition: ieee80211_node.c:332
IEEE80211_RSSI_LPF
#define IEEE80211_RSSI_LPF(x, y)
Definition: ieee80211_node.h:313
ieee80211_node_is_authorized
static __inline int ieee80211_node_is_authorized(const struct ieee80211_node *ni)
Definition: ieee80211_node.h:346
IEEE80211_NODE_ASSOCID
#define IEEE80211_NODE_ASSOCID
Definition: ieee80211_node.h:144
IEEE80211_NODE_QOS
#define IEEE80211_NODE_QOS
Definition: ieee80211_node.h:128
IEEE80211_NODE_STAT
#define IEEE80211_NODE_STAT(ni, stat)
Definition: ieee80211_node.h:288
IEEE80211_NODE_PWR_MGT
#define IEEE80211_NODE_PWR_MGT
Definition: ieee80211_node.h:131
IEEE80211_NODE_WPS
#define IEEE80211_NODE_WPS
Definition: ieee80211_node.h:135
ieee80211_ref_node
static __inline struct ieee80211_node * ieee80211_ref_node(struct ieee80211_node *ni)
Definition: ieee80211_node.h:325
IEEE80211_NODE_UAPSD
#define IEEE80211_NODE_UAPSD
Definition: ieee80211_node.h:149
IEEE80211_NODE_HT
#define IEEE80211_NODE_HT
Definition: ieee80211_node.h:133
IEEE80211_NODE_AREF
#define IEEE80211_NODE_AREF
Definition: ieee80211_node.h:132
IEEE80211_NODE_VHT
#define IEEE80211_NODE_VHT
Definition: ieee80211_node.h:147
IEEE80211_NODE_STAT_ADD
#define IEEE80211_NODE_STAT_ADD(ni, stat, v)
Definition: ieee80211_node.h:289
IEEE80211_NODE_TSN
#define IEEE80211_NODE_TSN
Definition: ieee80211_node.h:136
ieee80211_send_proberesp
int ieee80211_send_proberesp(struct ieee80211vap *vap, const uint8_t da[IEEE80211_ADDR_LEN], int legacy)
Definition: ieee80211_output.c:3234
ieee80211_send_nulldata
int ieee80211_send_nulldata(struct ieee80211_node *ni)
Definition: ieee80211_output.c:1095
ieee80211_node_psq_dequeue
struct mbuf * ieee80211_node_psq_dequeue(struct ieee80211_node *ni, int *qlen)
Definition: ieee80211_power.c:132
ieee80211_reason_to_string
const char * ieee80211_reason_to_string(uint16_t reason)
Definition: ieee80211_proto.c:112
ieee80211_print_essid
void ieee80211_print_essid(const uint8_t *essid, int len)
Definition: ieee80211_proto.c:530
ieee80211_state_name
const char * ieee80211_state_name[IEEE80211_S_MAX]
Definition: ieee80211_proto.c:89
ieee80211_vap_update_erp_protmode
void ieee80211_vap_update_erp_protmode(struct ieee80211vap *vap)
Definition: ieee80211_proto.c:1240
IEEE80211_SEND_LEGACY_11B
#define IEEE80211_SEND_LEGACY_11B
Definition: ieee80211_proto.h:134
IEEE80211_F_DODEL
#define IEEE80211_F_DODEL
Definition: ieee80211_proto.h:258
IEEE80211_F_DONEGO
#define IEEE80211_F_DONEGO
Definition: ieee80211_proto.h:257
IEEE80211_F_DOBRS
#define IEEE80211_F_DOBRS
Definition: ieee80211_proto.h:259
ieee80211_state
ieee80211_state
Definition: ieee80211_proto.h:37
IEEE80211_S_CSA
@ IEEE80211_S_CSA
Definition: ieee80211_proto.h:44
IEEE80211_S_RUN
@ IEEE80211_S_RUN
Definition: ieee80211_proto.h:43
IEEE80211_S_SCAN
@ IEEE80211_S_SCAN
Definition: ieee80211_proto.h:39
IEEE80211_S_INIT
@ IEEE80211_S_INIT
Definition: ieee80211_proto.h:38
IEEE80211_S_CAC
@ IEEE80211_S_CAC
Definition: ieee80211_proto.h:42
IEEE80211_F_DOSORT
#define IEEE80211_F_DOSORT
Definition: ieee80211_proto.h:255
ieee80211_gettid
static __inline uint8_t ieee80211_gettid(const struct ieee80211_frame *wh)
Definition: ieee80211_proto.h:333
IEEE80211_F_DOFMCS
#define IEEE80211_F_DOFMCS
Definition: ieee80211_proto.h:261
ieee80211_getqos
static __inline uint8_t * ieee80211_getqos(void *data)
Definition: ieee80211_proto.h:316
ieee80211_mgt_subtype_name
static __inline const char * ieee80211_mgt_subtype_name(uint8_t subtype)
Definition: ieee80211_proto.h:58
IEEE80211_SEND_MGMT
#define IEEE80211_SEND_MGMT(_ni, _type, _arg)
Definition: ieee80211_proto.h:49
IEEE80211_F_DOFRATE
#define IEEE80211_F_DOFRATE
Definition: ieee80211_proto.h:256
ieee80211_radiotap_rx
void ieee80211_radiotap_rx(struct ieee80211vap *vap0, struct mbuf *m)
Definition: ieee80211_radiotap.c:231
ieee80211_add_scan
void ieee80211_add_scan(struct ieee80211vap *vap, struct ieee80211_channel *curchan, const struct ieee80211_scanparams *sp, const struct ieee80211_frame *wh, int subtype, int rssi, int noise)
Definition: ieee80211_scan.c:581
ieee80211_cancel_scan
void ieee80211_cancel_scan(struct ieee80211vap *vap)
Definition: ieee80211_scan.c:453
ieee80211_check_scan
int ieee80211_check_scan(struct ieee80211vap *vap, int flags, u_int duration, u_int mindwell, u_int maxdwell, u_int nssid, const struct ieee80211_scan_ssid ssids[])
Definition: ieee80211_scan.c:354
ieee80211_check_scan_current
int ieee80211_check_scan_current(struct ieee80211vap *vap)
Definition: ieee80211_scan.c:412
ieee80211_probe_curchan
void ieee80211_probe_curchan(struct ieee80211vap *vap, int force)
Definition: ieee80211_scan.c:517
IEEE80211_BPARSE_OFFCHAN
@ IEEE80211_BPARSE_OFFCHAN
Definition: ieee80211_scan.h:213
ieee80211_parse_wmeie
int ieee80211_parse_wmeie(uint8_t *frm, const struct ieee80211_frame *wh, struct ieee80211_node *ni)
Definition: ieee80211_sta.c:1152
ieee80211_sta.h
ieee80211_superg.h
ieee80211_ff_node_cleanup
void ieee80211_ff_node_cleanup(struct ieee80211_node *)
ieee80211_decap_fastframe
static __inline struct mbuf * ieee80211_decap_fastframe(struct ieee80211vap *vap, struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_superg.h:150
ieee80211_parse_ath
void ieee80211_parse_ath(struct ieee80211_node *, uint8_t *)
ieee80211_var.h
IEEE80211_MSG_AUTH
#define IEEE80211_MSG_AUTH
Definition: ieee80211_var.h:987
ieee80211_radiotap_active_vap
static __inline int ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
Definition: ieee80211_var.h:835
IEEE80211_MSG_STATE
#define IEEE80211_MSG_STATE
Definition: ieee80211_var.h:990
IEEE80211_MSG_WPA
#define IEEE80211_MSG_WPA
Definition: ieee80211_var.h:997
IEEE80211_DISCARD_IE
#define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt,...)
Definition: ieee80211_var.h:1100
IEEE80211_ADDR_COPY
#define IEEE80211_ADDR_COPY(dst, src)
Definition: ieee80211_var.h:613
IEEE80211_F_PUREG
#define IEEE80211_F_PUREG
Definition: ieee80211_var.h:622
IEEE80211_FEXT_PROBECHAN
#define IEEE80211_FEXT_PROBECHAN
Definition: ieee80211_var.h:682
ieee80211_hdrspace
static __inline int ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
Definition: ieee80211_var.h:883
IEEE80211_F_SCAN
#define IEEE80211_F_SCAN
Definition: ieee80211_var.h:623
IEEE80211_NOTE_FRAME
#define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt,...)
Definition: ieee80211_var.h:1094
IEEE80211_FEXT_NONERP_PR
#define IEEE80211_FEXT_NONERP_PR
Definition: ieee80211_var.h:673
IEEE80211_MSG_CRYPTO
#define IEEE80211_MSG_CRYPTO
Definition: ieee80211_var.h:981
IEEE80211_MSG_ANY
#define IEEE80211_MSG_ANY
Definition: ieee80211_var.h:1010
IEEE80211_F_COUNTERM
#define IEEE80211_F_COUNTERM
Definition: ieee80211_var.h:642
IEEE80211_MSG_INACT
#define IEEE80211_MSG_INACT
Definition: ieee80211_var.h:1002
IEEE80211_MSG_ACL
#define IEEE80211_MSG_ACL
Definition: ieee80211_var.h:998
IEEE80211_MSG_ELEMID
#define IEEE80211_MSG_ELEMID
Definition: ieee80211_var.h:984
IEEE80211_FHT_PUREN
#define IEEE80211_FHT_PUREN
Definition: ieee80211_var.h:708
IEEE80211_F_NOBRIDGE
#define IEEE80211_F_NOBRIDGE
Definition: ieee80211_var.h:644
ieee80211_htchanflags
static __inline int ieee80211_htchanflags(const struct ieee80211_channel *c)
Definition: ieee80211_var.h:918
IEEE80211_NOTE_MAC
#define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt,...)
Definition: ieee80211_var.h:1095
IEEE80211_MSG_11N
#define IEEE80211_MSG_11N
Definition: ieee80211_var.h:978
IEEE80211_ADDR_EQ
#define IEEE80211_ADDR_EQ(a1, a2)
Definition: ieee80211_var.h:612
IEEE80211_FEXT_WPS
#define IEEE80211_FEXT_WPS
Definition: ieee80211_var.h:668
IEEE80211_F_PRIVACY
#define IEEE80211_F_PRIVACY
Definition: ieee80211_var.h:621
IEEE80211_F_HIDESSID
#define IEEE80211_F_HIDESSID
Definition: ieee80211_var.h:643
IEEE80211_MSG_DEBUG
#define IEEE80211_MSG_DEBUG
Definition: ieee80211_var.h:979
IEEE80211_F_WPA
#define IEEE80211_F_WPA
Definition: ieee80211_var.h:640
IEEE80211_NOTE
#define IEEE80211_NOTE(_vap, _m, _ni, _fmt,...)
Definition: ieee80211_var.h:1093
IEEE80211_MSG_POWER
#define IEEE80211_MSG_POWER
Definition: ieee80211_var.h:991
IEEE80211_F_WPA1
#define IEEE80211_F_WPA1
Definition: ieee80211_var.h:638
IEEE80211_DISCARD_MAC
#define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt,...)
Definition: ieee80211_var.h:1101
IEEE80211_F_WPA2
#define IEEE80211_F_WPA2
Definition: ieee80211_var.h:639
IEEE80211_FHT_HTCOMPAT
#define IEEE80211_FHT_HTCOMPAT
Definition: ieee80211_var.h:711
IEEE80211_F_DWDS
#define IEEE80211_F_DWDS
Definition: ieee80211_var.h:647
IEEE80211_F_USEPROT
#define IEEE80211_F_USEPROT
Definition: ieee80211_var.h:635
IEEE80211_DPRINTF
#define IEEE80211_DPRINTF(_vap, _m, _fmt,...)
Definition: ieee80211_var.h:1092
IEEE80211_MSG_INPUT
#define IEEE80211_MSG_INPUT
Definition: ieee80211_var.h:982
IEEE80211_MSG_WDS
#define IEEE80211_MSG_WDS
Definition: ieee80211_var.h:1006
IEEE80211_DISCARD
#define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt,...)
Definition: ieee80211_var.h:1099
IEEE80211_FEXT_TSN
#define IEEE80211_FEXT_TSN
Definition: ieee80211_var.h:669
ieee80211_msg_dumppkts
#define ieee80211_msg_dumppkts(_vap)
Definition: ieee80211_var.h:1096
IEEE80211_FEXT_SCANREQ
#define IEEE80211_FEXT_SCANREQ
Definition: ieee80211_var.h:670
IEEE80211_MSG_ASSOC
#define IEEE80211_MSG_ASSOC
Definition: ieee80211_var.h:986
IEEE80211_F_DROPUNENC
#define IEEE80211_F_DROPUNENC
Definition: ieee80211_var.h:641
ieee80211_vht_node_init
void ieee80211_vht_node_init(struct ieee80211_node *ni)
Definition: ieee80211_vht.c:224
ieee80211_vht_update_cap
void ieee80211_vht_update_cap(struct ieee80211_node *ni, const uint8_t *vhtcap_ie, const uint8_t *vhtop_ie)
Definition: ieee80211_vht.c:774
ieee80211_vht_node_cleanup
void ieee80211_vht_node_cleanup(struct ieee80211_node *ni)
Definition: ieee80211_vht.c:233
ieee80211_vht.h
ieee80211_dwds_discover
void ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_wds.c:324
ieee80211_dwds_mcast
void ieee80211_dwds_mcast(struct ieee80211vap *vap0, struct mbuf *m)
Definition: ieee80211_wds.c:236
ieee80211_wds.h
ieee80211_aclator::iac_check
int(* iac_check)(struct ieee80211vap *, const struct ieee80211_frame *wh)
Definition: ieee80211_proto.h:238
ieee80211_aclator::iac_getpolicy
int(* iac_getpolicy)(struct ieee80211vap *)
Definition: ieee80211_proto.h:246
ieee80211_authenticator::ia_attach
int(* ia_attach)(struct ieee80211vap *)
Definition: ieee80211_proto.h:218
ieee80211_authenticator::ia_detach
void(* ia_detach)(struct ieee80211vap *)
Definition: ieee80211_proto.h:219
ieee80211_channel::ic_flags
uint32_t ic_flags
Definition: _ieee80211.h:141
ieee80211_channel::ic_extieee
uint8_t ic_extieee
Definition: _ieee80211.h:148
ieee80211_channel::ic_ieee
uint8_t ic_ieee
Definition: _ieee80211.h:143
ieee80211_frame_min
Definition: ieee80211.h:494
ieee80211_frame_min::i_dur
uint8_t i_dur[2]
Definition: ieee80211.h:496
ieee80211_frame_min::i_addr2
uint8_t i_addr2[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:498
ieee80211_frame
Definition: ieee80211.h:67
ieee80211_frame::i_addr1
uint8_t i_addr1[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:70
ieee80211_frame::i_addr2
uint8_t i_addr2[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:71
ieee80211_frame::i_fc
uint8_t i_fc[2]
Definition: ieee80211.h:68
ieee80211_frame::i_addr3
uint8_t i_addr3[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:72
ieee80211_ie_htcap
Definition: ieee80211.h:611
ieee80211_ie_htinfo
Definition: ieee80211.h:691
ieee80211_ie_htinfo::hi_byte2
uint8_t hi_byte2
Definition: ieee80211.h:696
ieee80211_ie_vht_operation
Definition: ieee80211.h:795
ieee80211_ie_vhtcap
Definition: ieee80211.h:781
ieee80211_ies::ath_ie
uint8_t * ath_ie
Definition: ieee80211_node.h:83
ieee80211_key
Definition: ieee80211_crypto.h:76
ieee80211_node
Definition: ieee80211_node.h:119
ieee80211_node::ni_flags
u_int ni_flags
Definition: ieee80211_node.h:126
ieee80211_node::ni_challenge
uint32_t * ni_challenge
Definition: ieee80211_node.h:165
ieee80211_node::ni_ic
struct ieee80211com * ni_ic
Definition: ieee80211_node.h:121
ieee80211_node::ni_macaddr
uint8_t ni_macaddr[IEEE80211_ADDR_LEN]
Definition: ieee80211_node.h:187
ieee80211_node::ni_authmode
uint8_t ni_authmode
Definition: ieee80211_node.h:153
ieee80211_node::ni_ath_flags
uint8_t ni_ath_flags
Definition: ieee80211_node.h:154
ieee80211_node::ni_esslen
uint8_t ni_esslen
Definition: ieee80211_node.h:197
ieee80211_node::ni_bssid
uint8_t ni_bssid[IEEE80211_ADDR_LEN]
Definition: ieee80211_node.h:188
ieee80211_node::ni_uapsd
uint8_t ni_uapsd
Definition: ieee80211_node.h:261
ieee80211_node::ni_inact_reload
short ni_inact_reload
Definition: ieee80211_node.h:248
ieee80211_node::ni_vap
struct ieee80211vap * ni_vap
Definition: ieee80211_node.h:120
ieee80211_node::ni_intval
uint16_t ni_intval
Definition: ieee80211_node.h:195
ieee80211_node::ni_capinfo
uint16_t ni_capinfo
Definition: ieee80211_node.h:196
ieee80211_node::ni_txrate
int ni_txrate
Definition: ieee80211_node.h:249
ieee80211_node::ni_vlan
uint16_t ni_vlan
Definition: ieee80211_node.h:151
ieee80211_node::ni_noise
int8_t ni_noise
Definition: ieee80211_node.h:177
ieee80211_node::ni_wdsvap
struct ieee80211vap * ni_wdsvap
Definition: ieee80211_node.h:253
ieee80211_node::ni_fhindex
uint8_t ni_fhindex
Definition: ieee80211_node.h:202
ieee80211_node::ni_inact
short ni_inact
Definition: ieee80211_node.h:247
ieee80211_node::ni_avgrssi
uint32_t ni_avgrssi
Definition: ieee80211_node.h:176
ieee80211_node::ni_ies
struct ieee80211_ies ni_ies
Definition: ieee80211_node.h:166
ieee80211_node::ni_fhdwell
uint16_t ni_fhdwell
Definition: ieee80211_node.h:201
ieee80211_node::ni_chan
struct ieee80211_channel * ni_chan
Definition: ieee80211_node.h:200
ieee80211_node::ni_associd
uint16_t ni_associd
Definition: ieee80211_node.h:150
ieee80211_node::ni_essid
uint8_t ni_essid[IEEE80211_NWID_LEN]
Definition: ieee80211_node.h:198
ieee80211_rsnparms
Definition: ieee80211_crypto.h:47
ieee80211_rsnparms::rsn_mcastcipher
uint8_t rsn_mcastcipher
Definition: ieee80211_crypto.h:48
ieee80211_rsnparms::rsn_keymgmt
uint8_t rsn_keymgmt
Definition: ieee80211_crypto.h:52
ieee80211_rsnparms::rsn_caps
uint16_t rsn_caps
Definition: ieee80211_crypto.h:53
ieee80211_rsnparms::rsn_ucastcipher
uint8_t rsn_ucastcipher
Definition: ieee80211_crypto.h:50
ieee80211_rsnparms::rsn_ucastkeylen
uint8_t rsn_ucastkeylen
Definition: ieee80211_crypto.h:51
ieee80211_rsnparms::rsn_mcastkeylen
uint8_t rsn_mcastkeylen
Definition: ieee80211_crypto.h:49
ieee80211_rx_stats
Definition: _ieee80211.h:592
ieee80211_rx_stats::c_pktflags
uint32_t c_pktflags
Definition: _ieee80211.h:594
ieee80211_scanparams
Definition: ieee80211_scan.h:225
ieee80211_scanparams::htinfo
uint8_t * htinfo
Definition: ieee80211_scan.h:248
ieee80211_scanparams::status
uint8_t status
Definition: ieee80211_scan.h:226
ieee80211_scanparams::capinfo
uint16_t capinfo
Definition: ieee80211_scan.h:231
ieee80211_scanparams::rates
uint8_t * rates
Definition: ieee80211_scan.h:241
ieee80211_scanparams::erp
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Definition: ieee80211_scan.h:232
ieee80211_scanparams::xrates
uint8_t * xrates
Definition: ieee80211_scan.h:242
ieee80211_scanparams::chan
uint8_t chan
Definition: ieee80211_scan.h:227
ieee80211_scanparams::ssid
uint8_t * ssid
Definition: ieee80211_scan.h:240
ieee80211_stats::is_rx_tooshort
uint32_t is_rx_tooshort
Definition: ieee80211_ioctl.h:101
ieee80211_stats::is_rx_acl
uint32_t is_rx_acl
Definition: ieee80211_ioctl.h:149
ieee80211_stats::is_ps_badaid
uint32_t is_ps_badaid
Definition: ieee80211_ioctl.h:180
ieee80211_stats::is_rx_badversion
uint32_t is_rx_badversion
Definition: ieee80211_ioctl.h:100
ieee80211_stats::is_rx_deauth
uint32_t is_rx_deauth
Definition: ieee80211_ioctl.h:131
ieee80211_stats::is_ht_assoc_nohtcap
uint32_t is_ht_assoc_nohtcap
Definition: ieee80211_ioctl.h:209
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Definition: ieee80211_hostap.c:1638
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Definition: ieee80211_hostap.c:1640
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