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/ethernet.h>
60 #include <net80211/ieee80211_var.h>
61 #include <net80211/ieee80211_wds.h>
62 #include <net80211/ieee80211_input.h>
63 #ifdef IEEE80211_SUPPORT_SUPERG
64 #include <net80211/ieee80211_superg.h>
67 static void wds_vattach(struct ieee80211vap *);
68 static int wds_newstate(struct ieee80211vap *, enum ieee80211_state, int);
69 static int wds_input(struct ieee80211_node *ni, struct mbuf *m,
70 const struct ieee80211_rx_stats *rxs, int, int);
71 static void wds_recv_mgmt(struct ieee80211_node *, struct mbuf *, int subtype,
72 const struct ieee80211_rx_stats *, int, int);
75 ieee80211_wds_attach(struct ieee80211com *ic)
77 ic->ic_vattach[IEEE80211_M_WDS] = wds_vattach;
81 ieee80211_wds_detach(struct ieee80211com *ic)
86 wds_vdetach(struct ieee80211vap *vap)
88 if (vap->iv_bss != NULL) {
90 if (vap->iv_bss->ni_wdsvap == vap)
91 vap->iv_bss->ni_wdsvap = NULL;
96 wds_vattach(struct ieee80211vap *vap)
98 vap->iv_newstate = wds_newstate;
99 vap->iv_input = wds_input;
100 vap->iv_recv_mgmt = wds_recv_mgmt;
101 vap->iv_opdetach = wds_vdetach;
105 wds_flush(struct ieee80211_node *ni)
107 struct ieee80211com *ic = ni->ni_ic;
108 struct mbuf *m, *next;
111 m = ieee80211_ageq_remove(&ic->ic_stageq,
112 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
116 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_WDS, ni,
117 "%s", "flush wds queue");
118 ic->ic_node_getsignal(ni, &rssi, &nf);
119 for (; m != NULL; m = next) {
122 ieee80211_input(ni, m, rssi, nf);
127 ieee80211_create_wds(struct ieee80211vap *vap, struct ieee80211_channel *chan)
129 struct ieee80211com *ic = vap->iv_ic;
130 struct ieee80211_node_table *nt = &ic->ic_sta;
131 struct ieee80211_node *ni, *obss;
133 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
134 "%s: creating link to %s on channel %u\n", __func__,
135 ether_sprintf(vap->iv_des_bssid), ieee80211_chan2ieee(ic, chan));
137 /* NB: vap create must specify the bssid for the link */
138 KASSERT(vap->iv_flags & IEEE80211_F_DESBSSID, ("no bssid"));
139 /* NB: we should only be called on RUN transition */
140 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("!RUN state"));
142 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
144 * Dynamic/non-legacy WDS. Reference the associated
145 * station specified by the desired bssid setup at vap
146 * create. Point ni_wdsvap at the WDS vap so 4-address
147 * frames received through the associated AP vap will
148 * be dispatched upward (e.g. to a bridge) as though
149 * they arrived on the WDS vap.
151 IEEE80211_NODE_LOCK(nt);
153 ni = ieee80211_find_node_locked(&ic->ic_sta, vap->iv_des_bssid);
156 * Node went away before we could hookup. This
157 * should be ok; no traffic will flow and a leave
158 * event will be dispatched that should cause
159 * the vap to be destroyed.
161 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
162 "%s: station %s went away\n",
163 __func__, ether_sprintf(vap->iv_des_bssid));
165 } else if (ni->ni_wdsvap != NULL) {
167 * Node already setup with a WDS vap; we cannot
168 * allow multiple references so disallow. If
169 * ni_wdsvap points at us that's ok; we should
172 /* XXX printf instead? */
173 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
174 "%s: station %s in use with %s\n",
175 __func__, ether_sprintf(vap->iv_des_bssid),
176 ni->ni_wdsvap->iv_ifp->if_xname);
180 * Committed to new node, setup state.
182 obss = vap->iv_update_bss(vap, ni);
185 IEEE80211_NODE_UNLOCK(nt);
187 /* NB: deferred to avoid recursive lock */
188 ieee80211_free_node(obss);
192 * Legacy WDS vap setup.
195 * The far end does not associate so we just create
196 * create a new node and install it as the vap's
197 * bss node. We must simulate an association and
198 * authorize the port for traffic to flow.
199 * XXX check if node already in sta table?
201 ni = ieee80211_node_create_wds(vap, vap->iv_des_bssid, chan);
203 obss = vap->iv_update_bss(vap, ieee80211_ref_node(ni));
204 ni->ni_flags |= IEEE80211_NODE_AREF;
206 ieee80211_free_node(obss);
207 /* give driver a chance to setup state like ni_txrate */
208 if (ic->ic_newassoc != NULL)
209 ic->ic_newassoc(ni, 1);
210 /* tell the authenticator about new station */
211 if (vap->iv_auth->ia_node_join != NULL)
212 vap->iv_auth->ia_node_join(ni);
213 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
214 ieee80211_node_authorize(ni);
216 ieee80211_notify_node_join(ni, 1 /*newassoc*/);
217 /* XXX inject l2uf frame */
222 * Flush any pending frames now that were setup.
226 return (ni == NULL ? ENOENT : 0);
230 * Propagate multicast frames of an ap vap to all DWDS links.
231 * The caller is assumed to have verified this frame is multicast.
234 ieee80211_dwds_mcast(struct ieee80211vap *vap0, struct mbuf *m)
236 struct ieee80211com *ic = vap0->iv_ic;
237 const struct ether_header *eh = mtod(m, const struct ether_header *);
238 struct ieee80211_node *ni;
239 struct ieee80211vap *vap;
244 KASSERT(ETHER_IS_MULTICAST(eh->ether_dhost),
245 ("%s not mcast", ether_sprintf(eh->ether_dhost)));
248 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
249 /* only DWDS vaps are interesting */
250 if (vap->iv_opmode != IEEE80211_M_WDS ||
251 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY))
253 /* if it came in this interface, don't send it back out */
255 if (ifp == m->m_pkthdr.rcvif)
258 * Duplicate the frame and send it.
260 mcopy = m_copypacket(m, IEEE80211_M_NOWAIT);
262 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
266 ni = ieee80211_find_txnode(vap, eh->ether_dhost);
268 /* NB: ieee80211_find_txnode does stat+msg */
269 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
273 /* calculate priority so drivers can find the tx queue */
274 if (ieee80211_classify(ni, mcopy)) {
275 IEEE80211_DISCARD_MAC(vap,
276 IEEE80211_MSG_OUTPUT | IEEE80211_MSG_WDS,
277 eh->ether_dhost, NULL,
278 "%s", "classification failure");
279 vap->iv_stats.is_tx_classify++;
280 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
282 ieee80211_free_node(ni);
286 BPF_MTAP(ifp, m); /* 802.3 tx */
289 * Encapsulate the packet in prep for transmission.
291 IEEE80211_TX_LOCK(ic);
292 mcopy = ieee80211_encap(vap, ni, mcopy);
294 /* NB: stat+msg handled in ieee80211_encap */
295 IEEE80211_TX_UNLOCK(ic);
296 ieee80211_free_node(ni);
299 mcopy->m_flags |= M_MCAST;
300 MPASS((mcopy->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0);
301 mcopy->m_pkthdr.rcvif = (void *) ni;
303 err = ieee80211_parent_xmitpkt(ic, mcopy);
304 IEEE80211_TX_UNLOCK(ic);
306 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
307 if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
308 if_inc_counter(ifp, IFCOUNTER_OBYTES,
315 * Handle DWDS discovery on receipt of a 4-address frame in
316 * ap mode. Queue the frame and post an event for someone
317 * to plumb the necessary WDS vap for this station. Frames
318 * received prior to the vap set running will then be reprocessed
319 * as if they were just received.
322 ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
324 struct ieee80211com *ic = ni->ni_ic;
327 * Save the frame with an aging interval 4 times
328 * the listen interval specified by the station.
329 * Frames that sit around too long are reclaimed
330 * using this information.
331 * XXX handle overflow?
332 * XXX per/vap beacon interval?
334 MPASS((m->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0);
335 m->m_pkthdr.rcvif = (void *)(uintptr_t)
336 ieee80211_mac_hash(ic, ni->ni_macaddr);
337 (void) ieee80211_ageq_append(&ic->ic_stageq, m,
338 ((ni->ni_intval * ic->ic_lintval) << 2) / 1024);
339 ieee80211_notify_wds_discover(ni);
343 * IEEE80211_M_WDS vap state machine handler.
346 wds_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
348 struct ieee80211com *ic = vap->iv_ic;
349 enum ieee80211_state ostate;
352 IEEE80211_LOCK_ASSERT(ic);
354 ostate = vap->iv_state;
355 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
356 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
357 vap->iv_state = nstate; /* state transition */
358 callout_stop(&vap->iv_mgtsend); /* XXX callout_drain */
359 if (ostate != IEEE80211_S_SCAN)
360 ieee80211_cancel_scan(vap); /* background scan */
363 case IEEE80211_S_INIT:
365 case IEEE80211_S_SCAN:
366 ieee80211_cancel_scan(vap);
371 if (ostate != IEEE80211_S_INIT) {
372 /* NB: optimize INIT -> INIT case */
373 ieee80211_reset_bss(vap);
376 case IEEE80211_S_SCAN:
378 case IEEE80211_S_INIT:
379 ieee80211_check_scan_current(vap);
385 case IEEE80211_S_RUN:
386 if (ostate == IEEE80211_S_INIT) {
388 * Already have a channel; bypass the scan
389 * and startup immediately.
391 error = ieee80211_create_wds(vap, ic->ic_curchan);
401 * Process a received frame. The node associated with the sender
402 * should be supplied. If nothing was found in the node table then
403 * the caller is assumed to supply a reference to iv_bss instead.
404 * The RSSI and a timestamp are also supplied. The RSSI data is used
405 * during AP scanning to select a AP to associate with; it can have
406 * any units so long as values have consistent units and higher values
407 * mean ``better signal''. The receive timestamp is currently not used
408 * by the 802.11 layer.
411 wds_input(struct ieee80211_node *ni, struct mbuf *m,
412 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
414 struct ieee80211vap *vap = ni->ni_vap;
415 struct ieee80211com *ic = ni->ni_ic;
416 struct ifnet *ifp = vap->iv_ifp;
417 struct ieee80211_frame *wh;
418 struct ieee80211_key *key;
419 struct ether_header *eh;
420 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
421 uint8_t dir, type, subtype, qos;
422 int is_hw_decrypted = 0;
423 int has_decrypted = 0;
426 * Some devices do hardware decryption all the way through
427 * to pretending the frame wasn't encrypted in the first place.
428 * So, tag it appropriately so it isn't discarded inappropriately.
430 if ((rxs != NULL) && (rxs->c_pktflags & IEEE80211_RX_F_DECRYPTED))
433 if (m->m_flags & M_AMPDU_MPDU) {
435 * Fastpath for A-MPDU reorder q resubmission. Frames
436 * w/ M_AMPDU_MPDU marked have already passed through
437 * here but were received out of order and been held on
438 * the reorder queue. When resubmitted they are marked
439 * with the M_AMPDU_MPDU flag and we can bypass most of
440 * the normal processing.
442 wh = mtod(m, struct ieee80211_frame *);
443 type = IEEE80211_FC0_TYPE_DATA;
444 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
445 subtype = IEEE80211_FC0_SUBTYPE_QOS_DATA;
446 hdrspace = ieee80211_hdrspace(ic, wh); /* XXX optimize? */
450 KASSERT(ni != NULL, ("null node"));
452 type = -1; /* undefined */
454 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
455 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
456 ni->ni_macaddr, NULL,
457 "too short (1): len %u", m->m_pkthdr.len);
458 vap->iv_stats.is_rx_tooshort++;
462 * Bit of a cheat here, we use a pointer for a 3-address
463 * frame format but don't reference fields past outside
464 * ieee80211_frame_min w/o first validating the data is
467 wh = mtod(m, struct ieee80211_frame *);
469 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
470 ni->ni_inact = ni->ni_inact_reload;
472 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
473 IEEE80211_FC0_VERSION_0) {
474 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
475 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
476 wh->i_fc[0], wh->i_fc[1]);
477 vap->iv_stats.is_rx_badversion++;
481 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
482 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
483 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
485 /* NB: WDS vap's do not scan */
486 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_addr4)) {
487 IEEE80211_DISCARD_MAC(vap,
488 IEEE80211_MSG_ANY, ni->ni_macaddr, NULL,
489 "too short (3): len %u", m->m_pkthdr.len);
490 vap->iv_stats.is_rx_tooshort++;
493 /* NB: the TA is implicitly verified by finding the wds peer node */
494 if (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
495 !IEEE80211_ADDR_EQ(wh->i_addr1, ifp->if_broadcastaddr)) {
496 /* not interested in */
497 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
498 wh->i_addr1, NULL, "%s", "not to bss");
499 vap->iv_stats.is_rx_wrongbss++;
502 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
504 if (IEEE80211_HAS_SEQ(type, subtype)) {
505 uint8_t tid = ieee80211_gettid(wh);
506 if (IEEE80211_QOS_HAS_SEQ(wh) &&
507 TID_TO_WME_AC(tid) >= WME_AC_VI)
508 ic->ic_wme.wme_hipri_traffic++;
509 if (! ieee80211_check_rxseq(ni, wh, wh->i_addr1, rxs))
513 case IEEE80211_FC0_TYPE_DATA:
514 hdrspace = ieee80211_hdrspace(ic, wh);
515 if (m->m_len < hdrspace &&
516 (m = m_pullup(m, hdrspace)) == NULL) {
517 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
518 ni->ni_macaddr, NULL,
519 "data too short: expecting %u", hdrspace);
520 vap->iv_stats.is_rx_tooshort++;
523 if (dir != IEEE80211_FC1_DIR_DSTODS) {
524 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
525 wh, "data", "incorrect dir 0x%x", dir);
526 vap->iv_stats.is_rx_wrongdir++;
530 * Only legacy WDS traffic should take this path.
532 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
533 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
534 wh, "data", "%s", "not legacy wds");
535 vap->iv_stats.is_rx_wrongdir++;/*XXX*/
539 * Handle A-MPDU re-ordering. If the frame is to be
540 * processed directly then ieee80211_ampdu_reorder
541 * will return 0; otherwise it has consumed the mbuf
542 * and we should do nothing more with it.
544 if ((m->m_flags & M_AMPDU) &&
545 ieee80211_ampdu_reorder(ni, m, rxs) != 0) {
552 * Handle privacy requirements. Note that we
553 * must not be preempted from here until after
554 * we (potentially) call ieee80211_crypto_demic;
555 * otherwise we may violate assumptions in the
556 * crypto cipher modules used to do delayed update
557 * of replay sequence numbers.
559 if (is_hw_decrypted || wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
560 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
562 * Discard encrypted frames when privacy is off.
564 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
565 wh, "WEP", "%s", "PRIVACY off");
566 vap->iv_stats.is_rx_noprivacy++;
567 IEEE80211_NODE_STAT(ni, rx_noprivacy);
570 if (ieee80211_crypto_decap(ni, m, hdrspace, &key) == 0) {
571 /* NB: stats+msgs handled in crypto_decap */
572 IEEE80211_NODE_STAT(ni, rx_wepfail);
575 wh = mtod(m, struct ieee80211_frame *);
576 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
579 /* XXX M_WEP and IEEE80211_F_PRIVACY */
584 * Save QoS bits for use below--before we strip the header.
586 if (subtype == IEEE80211_FC0_SUBTYPE_QOS_DATA)
587 qos = ieee80211_getqos(wh)[0];
592 * Next up, any fragmentation.
594 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
595 m = ieee80211_defrag(ni, m, hdrspace, has_decrypted);
597 /* Fragment dropped or frame not complete yet */
601 wh = NULL; /* no longer valid, catch any uses */
604 * Next strip any MSDU crypto bits.
606 if (!ieee80211_crypto_demic(vap, key, m, 0)) {
607 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
608 ni->ni_macaddr, "data", "%s", "demic error");
609 vap->iv_stats.is_rx_demicfail++;
610 IEEE80211_NODE_STAT(ni, rx_demicfail);
614 /* copy to listener after decrypt */
615 if (ieee80211_radiotap_active_vap(vap))
616 ieee80211_radiotap_rx(vap, m);
620 * Finally, strip the 802.11 header.
622 m = ieee80211_decap(vap, m, hdrspace, qos);
624 /* XXX mask bit to check for both */
625 /* don't count Null data frames as errors */
626 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
627 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
629 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
630 ni->ni_macaddr, "data", "%s", "decap error");
631 vap->iv_stats.is_rx_decap++;
632 IEEE80211_NODE_STAT(ni, rx_decap);
635 if (!(qos & IEEE80211_QOS_AMSDU))
636 eh = mtod(m, struct ether_header *);
639 if (!ieee80211_node_is_authorized(ni)) {
641 * Deny any non-PAE frames received prior to
642 * authorization. For open/shared-key
643 * authentication the port is mark authorized
644 * after authentication completes. For 802.1x
645 * the port is not marked authorized by the
646 * authenticator until the handshake has completed.
649 eh->ether_type != htons(ETHERTYPE_PAE)) {
650 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
651 ni->ni_macaddr, "data", "unauthorized or "
652 "unknown port: ether type 0x%x len %u",
653 eh == NULL ? -1 : eh->ether_type,
655 vap->iv_stats.is_rx_unauth++;
656 IEEE80211_NODE_STAT(ni, rx_unauth);
661 * When denying unencrypted frames, discard
662 * any non-PAE frames received without encryption.
664 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
665 ((has_decrypted == 0) && (m->m_flags & M_WEP) == 0) &&
666 (is_hw_decrypted == 0) &&
668 eh->ether_type != htons(ETHERTYPE_PAE))) {
670 * Drop unencrypted frames.
672 vap->iv_stats.is_rx_unencrypted++;
673 IEEE80211_NODE_STAT(ni, rx_unencrypted);
677 /* XXX require HT? */
678 if (qos & IEEE80211_QOS_AMSDU) {
679 m = ieee80211_decap_amsdu(ni, m);
681 return IEEE80211_FC0_TYPE_DATA;
683 #ifdef IEEE80211_SUPPORT_SUPERG
684 m = ieee80211_decap_fastframe(vap, ni, m);
686 return IEEE80211_FC0_TYPE_DATA;
689 ieee80211_deliver_data(vap, ni, m);
690 return IEEE80211_FC0_TYPE_DATA;
692 case IEEE80211_FC0_TYPE_MGT:
693 vap->iv_stats.is_rx_mgmt++;
694 IEEE80211_NODE_STAT(ni, rx_mgmt);
695 if (dir != IEEE80211_FC1_DIR_NODS) {
696 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
697 wh, "data", "incorrect dir 0x%x", dir);
698 vap->iv_stats.is_rx_wrongdir++;
701 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
702 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
703 ni->ni_macaddr, "mgt", "too short: len %u",
705 vap->iv_stats.is_rx_tooshort++;
708 #ifdef IEEE80211_DEBUG
709 if (ieee80211_msg_debug(vap) || ieee80211_msg_dumppkts(vap)) {
710 if_printf(ifp, "received %s from %s rssi %d\n",
711 ieee80211_mgt_subtype_name(subtype),
712 ether_sprintf(wh->i_addr2), rssi);
715 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
716 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
717 wh, NULL, "%s", "WEP set but not permitted");
718 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
721 vap->iv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
724 case IEEE80211_FC0_TYPE_CTL:
725 vap->iv_stats.is_rx_ctl++;
726 IEEE80211_NODE_STAT(ni, rx_ctrl);
730 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
731 wh, "bad", "frame type 0x%x", type);
732 /* should not come here */
736 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
739 if (need_tap && ieee80211_radiotap_active_vap(vap))
740 ieee80211_radiotap_rx(vap, m);
747 wds_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
748 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
750 struct ieee80211vap *vap = ni->ni_vap;
751 struct ieee80211com *ic = ni->ni_ic;
752 struct ieee80211_frame *wh;
753 u_int8_t *frm, *efrm;
755 wh = mtod(m0, struct ieee80211_frame *);
756 frm = (u_int8_t *)&wh[1];
757 efrm = mtod(m0, u_int8_t *) + m0->m_len;
759 case IEEE80211_FC0_SUBTYPE_ACTION:
760 case IEEE80211_FC0_SUBTYPE_ACTION_NOACK:
761 if (ni == vap->iv_bss) {
762 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
763 wh, NULL, "%s", "unknown node");
764 vap->iv_stats.is_rx_mgtdiscard++;
765 } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1)) {
766 /* NB: not interested in multicast frames. */
767 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
768 wh, NULL, "%s", "not for us");
769 vap->iv_stats.is_rx_mgtdiscard++;
770 } else if (vap->iv_state != IEEE80211_S_RUN) {
771 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
772 wh, NULL, "wrong state %s",
773 ieee80211_state_name[vap->iv_state]);
774 vap->iv_stats.is_rx_mgtdiscard++;
776 if (ieee80211_parse_action(ni, m0) == 0)
777 (void)ic->ic_recv_action(ni, wh, frm, efrm);
781 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
782 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
783 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
784 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
785 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
786 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
787 case IEEE80211_FC0_SUBTYPE_TIMING_ADV:
788 case IEEE80211_FC0_SUBTYPE_BEACON:
789 case IEEE80211_FC0_SUBTYPE_ATIM:
790 case IEEE80211_FC0_SUBTYPE_DISASSOC:
791 case IEEE80211_FC0_SUBTYPE_AUTH:
792 case IEEE80211_FC0_SUBTYPE_DEAUTH:
793 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
794 wh, NULL, "%s", "not handled");
795 vap->iv_stats.is_rx_mgtdiscard++;
799 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
800 wh, "mgt", "subtype 0x%x not handled", subtype);
801 vap->iv_stats.is_rx_badsubtype++;