2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
28 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
34 * IEEE 802.11 WDS mode support.
39 #include <sys/param.h>
40 #include <sys/systm.h>
42 #include <sys/malloc.h>
43 #include <sys/kernel.h>
45 #include <sys/socket.h>
46 #include <sys/sockio.h>
47 #include <sys/endian.h>
48 #include <sys/errno.h>
50 #include <sys/sysctl.h>
53 #include <net/if_var.h>
54 #include <net/if_media.h>
55 #include <net/if_llc.h>
56 #include <net/if_private.h>
57 #include <net/ethernet.h>
61 #include <net80211/ieee80211_var.h>
62 #include <net80211/ieee80211_wds.h>
63 #include <net80211/ieee80211_input.h>
64 #ifdef IEEE80211_SUPPORT_SUPERG
65 #include <net80211/ieee80211_superg.h>
68 static void wds_vattach(struct ieee80211vap *);
69 static int wds_newstate(struct ieee80211vap *, enum ieee80211_state, int);
70 static int wds_input(struct ieee80211_node *ni, struct mbuf *m,
71 const struct ieee80211_rx_stats *rxs, int, int);
72 static void wds_recv_mgmt(struct ieee80211_node *, struct mbuf *, int subtype,
73 const struct ieee80211_rx_stats *, int, int);
76 ieee80211_wds_attach(struct ieee80211com *ic)
78 ic->ic_vattach[IEEE80211_M_WDS] = wds_vattach;
82 ieee80211_wds_detach(struct ieee80211com *ic)
87 wds_vdetach(struct ieee80211vap *vap)
89 if (vap->iv_bss != NULL) {
91 if (vap->iv_bss->ni_wdsvap == vap)
92 vap->iv_bss->ni_wdsvap = NULL;
97 wds_vattach(struct ieee80211vap *vap)
99 vap->iv_newstate = wds_newstate;
100 vap->iv_input = wds_input;
101 vap->iv_recv_mgmt = wds_recv_mgmt;
102 vap->iv_opdetach = wds_vdetach;
106 wds_flush(struct ieee80211_node *ni)
108 struct ieee80211com *ic = ni->ni_ic;
109 struct mbuf *m, *next;
112 m = ieee80211_ageq_remove(&ic->ic_stageq,
113 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
117 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_WDS, ni,
118 "%s", "flush wds queue");
119 ic->ic_node_getsignal(ni, &rssi, &nf);
120 for (; m != NULL; m = next) {
123 ieee80211_input(ni, m, rssi, nf);
128 ieee80211_create_wds(struct ieee80211vap *vap, struct ieee80211_channel *chan)
130 struct ieee80211com *ic = vap->iv_ic;
131 struct ieee80211_node_table *nt = &ic->ic_sta;
132 struct ieee80211_node *ni, *obss;
134 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
135 "%s: creating link to %s on channel %u\n", __func__,
136 ether_sprintf(vap->iv_des_bssid), ieee80211_chan2ieee(ic, chan));
138 /* NB: vap create must specify the bssid for the link */
139 KASSERT(vap->iv_flags & IEEE80211_F_DESBSSID, ("no bssid"));
140 /* NB: we should only be called on RUN transition */
141 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("!RUN state"));
143 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
145 * Dynamic/non-legacy WDS. Reference the associated
146 * station specified by the desired bssid setup at vap
147 * create. Point ni_wdsvap at the WDS vap so 4-address
148 * frames received through the associated AP vap will
149 * be dispatched upward (e.g. to a bridge) as though
150 * they arrived on the WDS vap.
152 IEEE80211_NODE_LOCK(nt);
154 ni = ieee80211_find_node_locked(&ic->ic_sta, vap->iv_des_bssid);
157 * Node went away before we could hookup. This
158 * should be ok; no traffic will flow and a leave
159 * event will be dispatched that should cause
160 * the vap to be destroyed.
162 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
163 "%s: station %s went away\n",
164 __func__, ether_sprintf(vap->iv_des_bssid));
166 } else if (ni->ni_wdsvap != NULL) {
168 * Node already setup with a WDS vap; we cannot
169 * allow multiple references so disallow. If
170 * ni_wdsvap points at us that's ok; we should
173 /* XXX printf instead? */
174 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
175 "%s: station %s in use with %s\n",
176 __func__, ether_sprintf(vap->iv_des_bssid),
177 ni->ni_wdsvap->iv_ifp->if_xname);
181 * Committed to new node, setup state.
183 obss = vap->iv_update_bss(vap, ni);
186 IEEE80211_NODE_UNLOCK(nt);
188 /* NB: deferred to avoid recursive lock */
189 ieee80211_free_node(obss);
193 * Legacy WDS vap setup.
196 * The far end does not associate so we just create
197 * create a new node and install it as the vap's
198 * bss node. We must simulate an association and
199 * authorize the port for traffic to flow.
200 * XXX check if node already in sta table?
202 ni = ieee80211_node_create_wds(vap, vap->iv_des_bssid, chan);
204 obss = vap->iv_update_bss(vap, ieee80211_ref_node(ni));
205 ni->ni_flags |= IEEE80211_NODE_AREF;
207 ieee80211_free_node(obss);
208 /* give driver a chance to setup state like ni_txrate */
209 if (ic->ic_newassoc != NULL)
210 ic->ic_newassoc(ni, 1);
211 /* tell the authenticator about new station */
212 if (vap->iv_auth->ia_node_join != NULL)
213 vap->iv_auth->ia_node_join(ni);
214 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
215 ieee80211_node_authorize(ni);
217 ieee80211_notify_node_join(ni, 1 /*newassoc*/);
218 /* XXX inject l2uf frame */
223 * Flush any pending frames now that were setup.
227 return (ni == NULL ? ENOENT : 0);
231 * Propagate multicast frames of an ap vap to all DWDS links.
232 * The caller is assumed to have verified this frame is multicast.
235 ieee80211_dwds_mcast(struct ieee80211vap *vap0, struct mbuf *m)
237 struct ieee80211com *ic = vap0->iv_ic;
238 const struct ether_header *eh = mtod(m, const struct ether_header *);
239 struct ieee80211_node *ni;
240 struct ieee80211vap *vap;
245 KASSERT(ETHER_IS_MULTICAST(eh->ether_dhost),
246 ("%s not mcast", ether_sprintf(eh->ether_dhost)));
249 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
250 /* only DWDS vaps are interesting */
251 if (vap->iv_opmode != IEEE80211_M_WDS ||
252 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY))
254 /* if it came in this interface, don't send it back out */
256 if (ifp == m->m_pkthdr.rcvif)
259 * Duplicate the frame and send it.
261 mcopy = m_copypacket(m, IEEE80211_M_NOWAIT);
263 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
267 ni = ieee80211_find_txnode(vap, eh->ether_dhost);
269 /* NB: ieee80211_find_txnode does stat+msg */
270 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
274 /* calculate priority so drivers can find the tx queue */
275 if (ieee80211_classify(ni, mcopy)) {
276 IEEE80211_DISCARD_MAC(vap,
277 IEEE80211_MSG_OUTPUT | IEEE80211_MSG_WDS,
278 eh->ether_dhost, NULL,
279 "%s", "classification failure");
280 vap->iv_stats.is_tx_classify++;
281 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
283 ieee80211_free_node(ni);
287 BPF_MTAP(ifp, m); /* 802.3 tx */
290 * Encapsulate the packet in prep for transmission.
292 IEEE80211_TX_LOCK(ic);
293 mcopy = ieee80211_encap(vap, ni, mcopy);
295 /* NB: stat+msg handled in ieee80211_encap */
296 IEEE80211_TX_UNLOCK(ic);
297 ieee80211_free_node(ni);
300 mcopy->m_flags |= M_MCAST;
301 MPASS((mcopy->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0);
302 mcopy->m_pkthdr.rcvif = (void *) ni;
304 err = ieee80211_parent_xmitpkt(ic, mcopy);
305 IEEE80211_TX_UNLOCK(ic);
307 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
308 if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
309 if_inc_counter(ifp, IFCOUNTER_OBYTES,
316 * Handle DWDS discovery on receipt of a 4-address frame in
317 * ap mode. Queue the frame and post an event for someone
318 * to plumb the necessary WDS vap for this station. Frames
319 * received prior to the vap set running will then be reprocessed
320 * as if they were just received.
323 ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
325 struct ieee80211com *ic = ni->ni_ic;
328 * Save the frame with an aging interval 4 times
329 * the listen interval specified by the station.
330 * Frames that sit around too long are reclaimed
331 * using this information.
332 * XXX handle overflow?
333 * XXX per/vap beacon interval?
335 MPASS((m->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0);
336 m->m_pkthdr.rcvif = (void *)(uintptr_t)
337 ieee80211_mac_hash(ic, ni->ni_macaddr);
338 (void) ieee80211_ageq_append(&ic->ic_stageq, m,
339 ((ni->ni_intval * ic->ic_lintval) << 2) / 1024);
340 ieee80211_notify_wds_discover(ni);
344 * IEEE80211_M_WDS vap state machine handler.
347 wds_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
349 struct ieee80211com *ic = vap->iv_ic;
350 enum ieee80211_state ostate;
353 IEEE80211_LOCK_ASSERT(ic);
355 ostate = vap->iv_state;
356 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
357 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
358 vap->iv_state = nstate; /* state transition */
359 callout_stop(&vap->iv_mgtsend); /* XXX callout_drain */
360 if (ostate != IEEE80211_S_SCAN)
361 ieee80211_cancel_scan(vap); /* background scan */
364 case IEEE80211_S_INIT:
366 case IEEE80211_S_SCAN:
367 ieee80211_cancel_scan(vap);
372 if (ostate != IEEE80211_S_INIT) {
373 /* NB: optimize INIT -> INIT case */
374 ieee80211_reset_bss(vap);
377 case IEEE80211_S_SCAN:
379 case IEEE80211_S_INIT:
380 ieee80211_check_scan_current(vap);
386 case IEEE80211_S_RUN:
387 if (ostate == IEEE80211_S_INIT) {
389 * Already have a channel; bypass the scan
390 * and startup immediately.
392 error = ieee80211_create_wds(vap, ic->ic_curchan);
402 * Process a received frame. The node associated with the sender
403 * should be supplied. If nothing was found in the node table then
404 * the caller is assumed to supply a reference to iv_bss instead.
405 * The RSSI and a timestamp are also supplied. The RSSI data is used
406 * during AP scanning to select a AP to associate with; it can have
407 * any units so long as values have consistent units and higher values
408 * mean ``better signal''. The receive timestamp is currently not used
409 * by the 802.11 layer.
412 wds_input(struct ieee80211_node *ni, struct mbuf *m,
413 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
415 struct ieee80211vap *vap = ni->ni_vap;
416 struct ieee80211com *ic = ni->ni_ic;
417 struct ifnet *ifp = vap->iv_ifp;
418 struct ieee80211_frame *wh;
419 struct ieee80211_key *key;
420 struct ether_header *eh;
421 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
422 uint8_t dir, type, subtype, qos;
423 int is_hw_decrypted = 0;
424 int has_decrypted = 0;
427 * Some devices do hardware decryption all the way through
428 * to pretending the frame wasn't encrypted in the first place.
429 * So, tag it appropriately so it isn't discarded inappropriately.
431 if ((rxs != NULL) && (rxs->c_pktflags & IEEE80211_RX_F_DECRYPTED))
434 if (m->m_flags & M_AMPDU_MPDU) {
436 * Fastpath for A-MPDU reorder q resubmission. Frames
437 * w/ M_AMPDU_MPDU marked have already passed through
438 * here but were received out of order and been held on
439 * the reorder queue. When resubmitted they are marked
440 * with the M_AMPDU_MPDU flag and we can bypass most of
441 * the normal processing.
443 wh = mtod(m, struct ieee80211_frame *);
444 type = IEEE80211_FC0_TYPE_DATA;
445 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
446 subtype = IEEE80211_FC0_SUBTYPE_QOS_DATA;
447 hdrspace = ieee80211_hdrspace(ic, wh); /* XXX optimize? */
451 KASSERT(ni != NULL, ("null node"));
453 type = -1; /* undefined */
455 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
456 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
457 ni->ni_macaddr, NULL,
458 "too short (1): len %u", m->m_pkthdr.len);
459 vap->iv_stats.is_rx_tooshort++;
463 * Bit of a cheat here, we use a pointer for a 3-address
464 * frame format but don't reference fields past outside
465 * ieee80211_frame_min w/o first validating the data is
468 wh = mtod(m, struct ieee80211_frame *);
470 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
471 ni->ni_inact = ni->ni_inact_reload;
473 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
474 IEEE80211_FC0_VERSION_0) {
475 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
476 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
477 wh->i_fc[0], wh->i_fc[1]);
478 vap->iv_stats.is_rx_badversion++;
482 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
483 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
484 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
486 /* NB: WDS vap's do not scan */
487 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_addr4)) {
488 IEEE80211_DISCARD_MAC(vap,
489 IEEE80211_MSG_ANY, ni->ni_macaddr, NULL,
490 "too short (3): len %u", m->m_pkthdr.len);
491 vap->iv_stats.is_rx_tooshort++;
494 /* NB: the TA is implicitly verified by finding the wds peer node */
495 if (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
496 !IEEE80211_ADDR_EQ(wh->i_addr1, ifp->if_broadcastaddr)) {
497 /* not interested in */
498 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
499 wh->i_addr1, NULL, "%s", "not to bss");
500 vap->iv_stats.is_rx_wrongbss++;
503 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
505 if (IEEE80211_HAS_SEQ(type, subtype)) {
506 uint8_t tid = ieee80211_gettid(wh);
507 if (IEEE80211_QOS_HAS_SEQ(wh) &&
508 TID_TO_WME_AC(tid) >= WME_AC_VI)
509 ic->ic_wme.wme_hipri_traffic++;
510 if (! ieee80211_check_rxseq(ni, wh, wh->i_addr1, rxs))
514 case IEEE80211_FC0_TYPE_DATA:
515 hdrspace = ieee80211_hdrspace(ic, wh);
516 if (m->m_len < hdrspace &&
517 (m = m_pullup(m, hdrspace)) == NULL) {
518 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
519 ni->ni_macaddr, NULL,
520 "data too short: expecting %u", hdrspace);
521 vap->iv_stats.is_rx_tooshort++;
524 if (dir != IEEE80211_FC1_DIR_DSTODS) {
525 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
526 wh, "data", "incorrect dir 0x%x", dir);
527 vap->iv_stats.is_rx_wrongdir++;
531 * Only legacy WDS traffic should take this path.
533 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
534 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
535 wh, "data", "%s", "not legacy wds");
536 vap->iv_stats.is_rx_wrongdir++;/*XXX*/
540 * Handle A-MPDU re-ordering. If the frame is to be
541 * processed directly then ieee80211_ampdu_reorder
542 * will return 0; otherwise it has consumed the mbuf
543 * and we should do nothing more with it.
545 if ((m->m_flags & M_AMPDU) &&
546 ieee80211_ampdu_reorder(ni, m, rxs) != 0) {
553 * Handle privacy requirements. Note that we
554 * must not be preempted from here until after
555 * we (potentially) call ieee80211_crypto_demic;
556 * otherwise we may violate assumptions in the
557 * crypto cipher modules used to do delayed update
558 * of replay sequence numbers.
560 if (is_hw_decrypted || IEEE80211_IS_PROTECTED(wh)) {
561 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
563 * Discard encrypted frames when privacy is off.
565 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
566 wh, "WEP", "%s", "PRIVACY off");
567 vap->iv_stats.is_rx_noprivacy++;
568 IEEE80211_NODE_STAT(ni, rx_noprivacy);
571 if (ieee80211_crypto_decap(ni, m, hdrspace, &key) == 0) {
572 /* NB: stats+msgs handled in crypto_decap */
573 IEEE80211_NODE_STAT(ni, rx_wepfail);
576 wh = mtod(m, struct ieee80211_frame *);
577 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
580 /* XXX M_WEP and IEEE80211_F_PRIVACY */
585 * Save QoS bits for use below--before we strip the header.
587 if (subtype == IEEE80211_FC0_SUBTYPE_QOS_DATA)
588 qos = ieee80211_getqos(wh)[0];
593 * Next up, any fragmentation.
595 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
596 m = ieee80211_defrag(ni, m, hdrspace, has_decrypted);
598 /* Fragment dropped or frame not complete yet */
602 wh = NULL; /* no longer valid, catch any uses */
605 * Next strip any MSDU crypto bits.
607 if (!ieee80211_crypto_demic(vap, key, m, 0)) {
608 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
609 ni->ni_macaddr, "data", "%s", "demic error");
610 vap->iv_stats.is_rx_demicfail++;
611 IEEE80211_NODE_STAT(ni, rx_demicfail);
615 /* copy to listener after decrypt */
616 if (ieee80211_radiotap_active_vap(vap))
617 ieee80211_radiotap_rx(vap, m);
621 * Finally, strip the 802.11 header.
623 m = ieee80211_decap(vap, m, hdrspace, qos);
625 /* XXX mask bit to check for both */
626 /* don't count Null data frames as errors */
627 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
628 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
630 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
631 ni->ni_macaddr, "data", "%s", "decap error");
632 vap->iv_stats.is_rx_decap++;
633 IEEE80211_NODE_STAT(ni, rx_decap);
636 if (!(qos & IEEE80211_QOS_AMSDU))
637 eh = mtod(m, struct ether_header *);
640 if (!ieee80211_node_is_authorized(ni)) {
642 * Deny any non-PAE frames received prior to
643 * authorization. For open/shared-key
644 * authentication the port is mark authorized
645 * after authentication completes. For 802.1x
646 * the port is not marked authorized by the
647 * authenticator until the handshake has completed.
650 eh->ether_type != htons(ETHERTYPE_PAE)) {
651 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
652 ni->ni_macaddr, "data", "unauthorized or "
653 "unknown port: ether type 0x%x len %u",
654 eh == NULL ? -1 : eh->ether_type,
656 vap->iv_stats.is_rx_unauth++;
657 IEEE80211_NODE_STAT(ni, rx_unauth);
662 * When denying unencrypted frames, discard
663 * any non-PAE frames received without encryption.
665 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
666 ((has_decrypted == 0) && (m->m_flags & M_WEP) == 0) &&
667 (is_hw_decrypted == 0) &&
669 eh->ether_type != htons(ETHERTYPE_PAE))) {
671 * Drop unencrypted frames.
673 vap->iv_stats.is_rx_unencrypted++;
674 IEEE80211_NODE_STAT(ni, rx_unencrypted);
678 /* XXX require HT? */
679 if (qos & IEEE80211_QOS_AMSDU) {
680 m = ieee80211_decap_amsdu(ni, m);
682 return IEEE80211_FC0_TYPE_DATA;
684 #ifdef IEEE80211_SUPPORT_SUPERG
685 m = ieee80211_decap_fastframe(vap, ni, m);
687 return IEEE80211_FC0_TYPE_DATA;
690 ieee80211_deliver_data(vap, ni, m);
691 return IEEE80211_FC0_TYPE_DATA;
693 case IEEE80211_FC0_TYPE_MGT:
694 vap->iv_stats.is_rx_mgmt++;
695 IEEE80211_NODE_STAT(ni, rx_mgmt);
696 if (dir != IEEE80211_FC1_DIR_NODS) {
697 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
698 wh, "data", "incorrect dir 0x%x", dir);
699 vap->iv_stats.is_rx_wrongdir++;
702 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
703 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
704 ni->ni_macaddr, "mgt", "too short: len %u",
706 vap->iv_stats.is_rx_tooshort++;
709 #ifdef IEEE80211_DEBUG
710 if (ieee80211_msg_debug(vap) || ieee80211_msg_dumppkts(vap)) {
711 if_printf(ifp, "received %s from %s rssi %d\n",
712 ieee80211_mgt_subtype_name(subtype),
713 ether_sprintf(wh->i_addr2), rssi);
716 if (IEEE80211_IS_PROTECTED(wh)) {
717 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
718 wh, NULL, "%s", "WEP set but not permitted");
719 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
722 vap->iv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
725 case IEEE80211_FC0_TYPE_CTL:
726 vap->iv_stats.is_rx_ctl++;
727 IEEE80211_NODE_STAT(ni, rx_ctrl);
731 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
732 wh, "bad", "frame type 0x%x", type);
733 /* should not come here */
737 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
740 if (need_tap && ieee80211_radiotap_active_vap(vap))
741 ieee80211_radiotap_rx(vap, m);
748 wds_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
749 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
751 struct ieee80211vap *vap = ni->ni_vap;
752 struct ieee80211com *ic = ni->ni_ic;
753 struct ieee80211_frame *wh;
754 u_int8_t *frm, *efrm;
756 wh = mtod(m0, struct ieee80211_frame *);
757 frm = (u_int8_t *)&wh[1];
758 efrm = mtod(m0, u_int8_t *) + m0->m_len;
760 case IEEE80211_FC0_SUBTYPE_ACTION:
761 case IEEE80211_FC0_SUBTYPE_ACTION_NOACK:
762 if (ni == vap->iv_bss) {
763 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
764 wh, NULL, "%s", "unknown node");
765 vap->iv_stats.is_rx_mgtdiscard++;
766 } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1)) {
767 /* NB: not interested in multicast frames. */
768 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
769 wh, NULL, "%s", "not for us");
770 vap->iv_stats.is_rx_mgtdiscard++;
771 } else if (vap->iv_state != IEEE80211_S_RUN) {
772 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
773 wh, NULL, "wrong state %s",
774 ieee80211_state_name[vap->iv_state]);
775 vap->iv_stats.is_rx_mgtdiscard++;
777 if (ieee80211_parse_action(ni, m0) == 0)
778 (void)ic->ic_recv_action(ni, wh, frm, efrm);
782 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
783 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
784 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
785 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
786 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
787 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
788 case IEEE80211_FC0_SUBTYPE_TIMING_ADV:
789 case IEEE80211_FC0_SUBTYPE_BEACON:
790 case IEEE80211_FC0_SUBTYPE_ATIM:
791 case IEEE80211_FC0_SUBTYPE_DISASSOC:
792 case IEEE80211_FC0_SUBTYPE_AUTH:
793 case IEEE80211_FC0_SUBTYPE_DEAUTH:
794 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
795 wh, NULL, "%s", "not handled");
796 vap->iv_stats.is_rx_mgtdiscard++;
800 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
801 wh, "mgt", "subtype 0x%x not handled", subtype);
802 vap->iv_stats.is_rx_badsubtype++;