2 * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
32 * IEEE 802.11 WDS mode support.
37 #include <sys/param.h>
38 #include <sys/systm.h>
40 #include <sys/malloc.h>
41 #include <sys/kernel.h>
43 #include <sys/socket.h>
44 #include <sys/sockio.h>
45 #include <sys/endian.h>
46 #include <sys/errno.h>
48 #include <sys/sysctl.h>
51 #include <net/if_var.h>
52 #include <net/if_media.h>
53 #include <net/if_llc.h>
54 #include <net/ethernet.h>
58 #include <net80211/ieee80211_var.h>
59 #include <net80211/ieee80211_wds.h>
60 #include <net80211/ieee80211_input.h>
61 #ifdef IEEE80211_SUPPORT_SUPERG
62 #include <net80211/ieee80211_superg.h>
65 static void wds_vattach(struct ieee80211vap *);
66 static int wds_newstate(struct ieee80211vap *, enum ieee80211_state, int);
67 static int wds_input(struct ieee80211_node *ni, struct mbuf *m,
68 const struct ieee80211_rx_stats *rxs, int, int);
69 static void wds_recv_mgmt(struct ieee80211_node *, struct mbuf *, int subtype,
70 const struct ieee80211_rx_stats *, int, int);
73 ieee80211_wds_attach(struct ieee80211com *ic)
75 ic->ic_vattach[IEEE80211_M_WDS] = wds_vattach;
79 ieee80211_wds_detach(struct ieee80211com *ic)
84 wds_vdetach(struct ieee80211vap *vap)
86 if (vap->iv_bss != NULL) {
88 if (vap->iv_bss->ni_wdsvap == vap)
89 vap->iv_bss->ni_wdsvap = NULL;
94 wds_vattach(struct ieee80211vap *vap)
96 vap->iv_newstate = wds_newstate;
97 vap->iv_input = wds_input;
98 vap->iv_recv_mgmt = wds_recv_mgmt;
99 vap->iv_opdetach = wds_vdetach;
103 wds_flush(struct ieee80211_node *ni)
105 struct ieee80211com *ic = ni->ni_ic;
106 struct mbuf *m, *next;
109 m = ieee80211_ageq_remove(&ic->ic_stageq,
110 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
114 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_WDS, ni,
115 "%s", "flush wds queue");
116 ic->ic_node_getsignal(ni, &rssi, &nf);
117 for (; m != NULL; m = next) {
120 ieee80211_input(ni, m, rssi, nf);
125 ieee80211_create_wds(struct ieee80211vap *vap, struct ieee80211_channel *chan)
127 struct ieee80211com *ic = vap->iv_ic;
128 struct ieee80211_node_table *nt = &ic->ic_sta;
129 struct ieee80211_node *ni, *obss;
131 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
132 "%s: creating link to %s on channel %u\n", __func__,
133 ether_sprintf(vap->iv_des_bssid), ieee80211_chan2ieee(ic, chan));
135 /* NB: vap create must specify the bssid for the link */
136 KASSERT(vap->iv_flags & IEEE80211_F_DESBSSID, ("no bssid"));
137 /* NB: we should only be called on RUN transition */
138 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("!RUN state"));
140 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
142 * Dynamic/non-legacy WDS. Reference the associated
143 * station specified by the desired bssid setup at vap
144 * create. Point ni_wdsvap at the WDS vap so 4-address
145 * frames received through the associated AP vap will
146 * be dispatched upward (e.g. to a bridge) as though
147 * they arrived on the WDS vap.
149 IEEE80211_NODE_LOCK(nt);
151 ni = ieee80211_find_node_locked(&ic->ic_sta, vap->iv_des_bssid);
154 * Node went away before we could hookup. This
155 * should be ok; no traffic will flow and a leave
156 * event will be dispatched that should cause
157 * the vap to be destroyed.
159 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
160 "%s: station %s went away\n",
161 __func__, ether_sprintf(vap->iv_des_bssid));
163 } else if (ni->ni_wdsvap != NULL) {
165 * Node already setup with a WDS vap; we cannot
166 * allow multiple references so disallow. If
167 * ni_wdsvap points at us that's ok; we should
170 /* XXX printf instead? */
171 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
172 "%s: station %s in use with %s\n",
173 __func__, ether_sprintf(vap->iv_des_bssid),
174 ni->ni_wdsvap->iv_ifp->if_xname);
178 * Committed to new node, setup state.
184 IEEE80211_NODE_UNLOCK(nt);
186 /* NB: deferred to avoid recursive lock */
187 ieee80211_free_node(obss);
191 * Legacy WDS vap setup.
194 * The far end does not associate so we just create
195 * create a new node and install it as the vap's
196 * bss node. We must simulate an association and
197 * authorize the port for traffic to flow.
198 * XXX check if node already in sta table?
200 ni = ieee80211_node_create_wds(vap, vap->iv_des_bssid, chan);
203 vap->iv_bss = 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, 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 mcopy->m_pkthdr.rcvif = (void *) ni;
302 err = ieee80211_parent_xmitpkt(ic, mcopy);
303 IEEE80211_TX_UNLOCK(ic);
305 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
306 if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
307 if_inc_counter(ifp, IFCOUNTER_OBYTES,
314 * Handle DWDS discovery on receipt of a 4-address frame in
315 * ap mode. Queue the frame and post an event for someone
316 * to plumb the necessary WDS vap for this station. Frames
317 * received prior to the vap set running will then be reprocessed
318 * as if they were just received.
321 ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
323 struct ieee80211com *ic = ni->ni_ic;
326 * Save the frame with an aging interval 4 times
327 * the listen interval specified by the station.
328 * Frames that sit around too long are reclaimed
329 * using this information.
330 * XXX handle overflow?
331 * XXX per/vap beacon interval?
333 m->m_pkthdr.rcvif = (void *)(uintptr_t)
334 ieee80211_mac_hash(ic, ni->ni_macaddr);
335 (void) ieee80211_ageq_append(&ic->ic_stageq, m,
336 ((ni->ni_intval * ic->ic_lintval) << 2) / 1024);
337 ieee80211_notify_wds_discover(ni);
341 * IEEE80211_M_WDS vap state machine handler.
344 wds_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
346 struct ieee80211com *ic = vap->iv_ic;
347 enum ieee80211_state ostate;
350 IEEE80211_LOCK_ASSERT(ic);
352 ostate = vap->iv_state;
353 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
354 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
355 vap->iv_state = nstate; /* state transition */
356 callout_stop(&vap->iv_mgtsend); /* XXX callout_drain */
357 if (ostate != IEEE80211_S_SCAN)
358 ieee80211_cancel_scan(vap); /* background scan */
361 case IEEE80211_S_INIT:
363 case IEEE80211_S_SCAN:
364 ieee80211_cancel_scan(vap);
369 if (ostate != IEEE80211_S_INIT) {
370 /* NB: optimize INIT -> INIT case */
371 ieee80211_reset_bss(vap);
374 case IEEE80211_S_SCAN:
376 case IEEE80211_S_INIT:
377 ieee80211_check_scan_current(vap);
383 case IEEE80211_S_RUN:
384 if (ostate == IEEE80211_S_INIT) {
386 * Already have a channel; bypass the scan
387 * and startup immediately.
389 error = ieee80211_create_wds(vap, ic->ic_curchan);
399 * Process a received frame. The node associated with the sender
400 * should be supplied. If nothing was found in the node table then
401 * the caller is assumed to supply a reference to iv_bss instead.
402 * The RSSI and a timestamp are also supplied. The RSSI data is used
403 * during AP scanning to select a AP to associate with; it can have
404 * any units so long as values have consistent units and higher values
405 * mean ``better signal''. The receive timestamp is currently not used
406 * by the 802.11 layer.
409 wds_input(struct ieee80211_node *ni, struct mbuf *m,
410 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
412 struct ieee80211vap *vap = ni->ni_vap;
413 struct ieee80211com *ic = ni->ni_ic;
414 struct ifnet *ifp = vap->iv_ifp;
415 struct ieee80211_frame *wh;
416 struct ieee80211_key *key;
417 struct ether_header *eh;
418 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
419 uint8_t dir, type, subtype, qos;
420 int is_hw_decrypted = 0;
421 int has_decrypted = 0;
424 * Some devices do hardware decryption all the way through
425 * to pretending the frame wasn't encrypted in the first place.
426 * So, tag it appropriately so it isn't discarded inappropriately.
428 if ((rxs != NULL) && (rxs->c_pktflags & IEEE80211_RX_F_DECRYPTED))
431 if (m->m_flags & M_AMPDU_MPDU) {
433 * Fastpath for A-MPDU reorder q resubmission. Frames
434 * w/ M_AMPDU_MPDU marked have already passed through
435 * here but were received out of order and been held on
436 * the reorder queue. When resubmitted they are marked
437 * with the M_AMPDU_MPDU flag and we can bypass most of
438 * the normal processing.
440 wh = mtod(m, struct ieee80211_frame *);
441 type = IEEE80211_FC0_TYPE_DATA;
442 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
443 subtype = IEEE80211_FC0_SUBTYPE_QOS;
444 hdrspace = ieee80211_hdrspace(ic, wh); /* XXX optimize? */
448 KASSERT(ni != NULL, ("null node"));
450 type = -1; /* undefined */
452 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
453 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
454 ni->ni_macaddr, NULL,
455 "too short (1): len %u", m->m_pkthdr.len);
456 vap->iv_stats.is_rx_tooshort++;
460 * Bit of a cheat here, we use a pointer for a 3-address
461 * frame format but don't reference fields past outside
462 * ieee80211_frame_min w/o first validating the data is
465 wh = mtod(m, struct ieee80211_frame *);
467 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
468 ni->ni_inact = ni->ni_inact_reload;
470 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
471 IEEE80211_FC0_VERSION_0) {
472 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
473 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
474 wh->i_fc[0], wh->i_fc[1]);
475 vap->iv_stats.is_rx_badversion++;
479 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
480 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
481 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
483 /* NB: WDS vap's do not scan */
484 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_addr4)) {
485 IEEE80211_DISCARD_MAC(vap,
486 IEEE80211_MSG_ANY, ni->ni_macaddr, NULL,
487 "too short (3): len %u", m->m_pkthdr.len);
488 vap->iv_stats.is_rx_tooshort++;
491 /* NB: the TA is implicitly verified by finding the wds peer node */
492 if (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
493 !IEEE80211_ADDR_EQ(wh->i_addr1, ifp->if_broadcastaddr)) {
494 /* not interested in */
495 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
496 wh->i_addr1, NULL, "%s", "not to bss");
497 vap->iv_stats.is_rx_wrongbss++;
500 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
502 if (IEEE80211_HAS_SEQ(type, subtype)) {
503 uint8_t tid = ieee80211_gettid(wh);
504 if (IEEE80211_QOS_HAS_SEQ(wh) &&
505 TID_TO_WME_AC(tid) >= WME_AC_VI)
506 ic->ic_wme.wme_hipri_traffic++;
507 if (! ieee80211_check_rxseq(ni, wh, wh->i_addr1))
511 case IEEE80211_FC0_TYPE_DATA:
512 hdrspace = ieee80211_hdrspace(ic, wh);
513 if (m->m_len < hdrspace &&
514 (m = m_pullup(m, hdrspace)) == NULL) {
515 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
516 ni->ni_macaddr, NULL,
517 "data too short: expecting %u", hdrspace);
518 vap->iv_stats.is_rx_tooshort++;
521 if (dir != IEEE80211_FC1_DIR_DSTODS) {
522 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
523 wh, "data", "incorrect dir 0x%x", dir);
524 vap->iv_stats.is_rx_wrongdir++;
528 * Only legacy WDS traffic should take this path.
530 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
531 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
532 wh, "data", "%s", "not legacy wds");
533 vap->iv_stats.is_rx_wrongdir++;/*XXX*/
537 * Handle A-MPDU re-ordering. If the frame is to be
538 * processed directly then ieee80211_ampdu_reorder
539 * will return 0; otherwise it has consumed the mbuf
540 * and we should do nothing more with it.
542 if ((m->m_flags & M_AMPDU) &&
543 ieee80211_ampdu_reorder(ni, m) != 0) {
550 * Handle privacy requirements. Note that we
551 * must not be preempted from here until after
552 * we (potentially) call ieee80211_crypto_demic;
553 * otherwise we may violate assumptions in the
554 * crypto cipher modules used to do delayed update
555 * of replay sequence numbers.
557 if (is_hw_decrypted || wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
558 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) {
560 * Discard encrypted frames when privacy is off.
562 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
563 wh, "WEP", "%s", "PRIVACY off");
564 vap->iv_stats.is_rx_noprivacy++;
565 IEEE80211_NODE_STAT(ni, rx_noprivacy);
568 if (ieee80211_crypto_decap(ni, m, hdrspace, &key) == 0) {
569 /* NB: stats+msgs handled in crypto_decap */
570 IEEE80211_NODE_STAT(ni, rx_wepfail);
573 wh = mtod(m, struct ieee80211_frame *);
574 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
577 /* XXX M_WEP and IEEE80211_F_PRIVACY */
582 * Save QoS bits for use below--before we strip the header.
584 if (subtype == IEEE80211_FC0_SUBTYPE_QOS) {
585 qos = (dir == IEEE80211_FC1_DIR_DSTODS) ?
586 ((struct ieee80211_qosframe_addr4 *)wh)->i_qos[0] :
587 ((struct ieee80211_qosframe *)wh)->i_qos[0];
592 * Next up, any fragmentation.
594 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
595 m = ieee80211_defrag(ni, m, hdrspace);
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);
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 eh = mtod(m, struct ether_header *);
636 if (!ieee80211_node_is_authorized(ni)) {
638 * Deny any non-PAE frames received prior to
639 * authorization. For open/shared-key
640 * authentication the port is mark authorized
641 * after authentication completes. For 802.1x
642 * the port is not marked authorized by the
643 * authenticator until the handshake has completed.
645 if (eh->ether_type != htons(ETHERTYPE_PAE)) {
646 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
647 eh->ether_shost, "data",
648 "unauthorized port: ether type 0x%x len %u",
649 eh->ether_type, m->m_pkthdr.len);
650 vap->iv_stats.is_rx_unauth++;
651 IEEE80211_NODE_STAT(ni, rx_unauth);
656 * When denying unencrypted frames, discard
657 * any non-PAE frames received without encryption.
659 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
660 ((has_decrypted == 0) && (m->m_flags & M_WEP) == 0) &&
661 (is_hw_decrypted == 0) &&
662 eh->ether_type != htons(ETHERTYPE_PAE)) {
664 * Drop unencrypted frames.
666 vap->iv_stats.is_rx_unencrypted++;
667 IEEE80211_NODE_STAT(ni, rx_unencrypted);
671 /* XXX require HT? */
672 if (qos & IEEE80211_QOS_AMSDU) {
673 m = ieee80211_decap_amsdu(ni, m);
675 return IEEE80211_FC0_TYPE_DATA;
677 #ifdef IEEE80211_SUPPORT_SUPERG
678 m = ieee80211_decap_fastframe(vap, ni, m);
680 return IEEE80211_FC0_TYPE_DATA;
683 ieee80211_deliver_data(vap, ni, m);
684 return IEEE80211_FC0_TYPE_DATA;
686 case IEEE80211_FC0_TYPE_MGT:
687 vap->iv_stats.is_rx_mgmt++;
688 IEEE80211_NODE_STAT(ni, rx_mgmt);
689 if (dir != IEEE80211_FC1_DIR_NODS) {
690 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
691 wh, "data", "incorrect dir 0x%x", dir);
692 vap->iv_stats.is_rx_wrongdir++;
695 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
696 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
697 ni->ni_macaddr, "mgt", "too short: len %u",
699 vap->iv_stats.is_rx_tooshort++;
702 #ifdef IEEE80211_DEBUG
703 if (ieee80211_msg_debug(vap) || ieee80211_msg_dumppkts(vap)) {
704 if_printf(ifp, "received %s from %s rssi %d\n",
705 ieee80211_mgt_subtype_name(subtype),
706 ether_sprintf(wh->i_addr2), rssi);
709 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
710 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
711 wh, NULL, "%s", "WEP set but not permitted");
712 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
715 vap->iv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
718 case IEEE80211_FC0_TYPE_CTL:
719 vap->iv_stats.is_rx_ctl++;
720 IEEE80211_NODE_STAT(ni, rx_ctrl);
724 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
725 wh, "bad", "frame type 0x%x", type);
726 /* should not come here */
730 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
733 if (need_tap && ieee80211_radiotap_active_vap(vap))
734 ieee80211_radiotap_rx(vap, m);
741 wds_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
742 const struct ieee80211_rx_stats *rxs, int rssi, int nf)
744 struct ieee80211vap *vap = ni->ni_vap;
745 struct ieee80211com *ic = ni->ni_ic;
746 struct ieee80211_frame *wh;
747 u_int8_t *frm, *efrm;
749 wh = mtod(m0, struct ieee80211_frame *);
750 frm = (u_int8_t *)&wh[1];
751 efrm = mtod(m0, u_int8_t *) + m0->m_len;
753 case IEEE80211_FC0_SUBTYPE_ACTION:
754 case IEEE80211_FC0_SUBTYPE_ACTION_NOACK:
755 if (ni == vap->iv_bss) {
756 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
757 wh, NULL, "%s", "unknown node");
758 vap->iv_stats.is_rx_mgtdiscard++;
759 } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1)) {
760 /* NB: not interested in multicast frames. */
761 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
762 wh, NULL, "%s", "not for us");
763 vap->iv_stats.is_rx_mgtdiscard++;
764 } else if (vap->iv_state != IEEE80211_S_RUN) {
765 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
766 wh, NULL, "wrong state %s",
767 ieee80211_state_name[vap->iv_state]);
768 vap->iv_stats.is_rx_mgtdiscard++;
770 if (ieee80211_parse_action(ni, m0) == 0)
771 (void)ic->ic_recv_action(ni, wh, frm, efrm);
775 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
776 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
777 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
778 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
779 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
780 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
781 case IEEE80211_FC0_SUBTYPE_TIMING_ADV:
782 case IEEE80211_FC0_SUBTYPE_BEACON:
783 case IEEE80211_FC0_SUBTYPE_ATIM:
784 case IEEE80211_FC0_SUBTYPE_DISASSOC:
785 case IEEE80211_FC0_SUBTYPE_AUTH:
786 case IEEE80211_FC0_SUBTYPE_DEAUTH:
787 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
788 wh, NULL, "%s", "not handled");
789 vap->iv_stats.is_rx_mgtdiscard++;
793 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
794 wh, "mgt", "subtype 0x%x not handled", subtype);
795 vap->iv_stats.is_rx_badsubtype++;