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_media.h>
52 #include <net/if_llc.h>
53 #include <net/ethernet.h>
57 #include <net80211/ieee80211_var.h>
58 #include <net80211/ieee80211_wds.h>
59 #include <net80211/ieee80211_input.h>
60 #ifdef IEEE80211_SUPPORT_SUPERG
61 #include <net80211/ieee80211_superg.h>
64 static void wds_vattach(struct ieee80211vap *);
65 static int wds_newstate(struct ieee80211vap *, enum ieee80211_state, int);
66 static int wds_input(struct ieee80211_node *ni, struct mbuf *m, int, int);
67 static void wds_recv_mgmt(struct ieee80211_node *, struct mbuf *,
68 int subtype, int, int);
71 ieee80211_wds_attach(struct ieee80211com *ic)
73 ic->ic_vattach[IEEE80211_M_WDS] = wds_vattach;
77 ieee80211_wds_detach(struct ieee80211com *ic)
82 wds_vdetach(struct ieee80211vap *vap)
84 if (vap->iv_bss != NULL) {
86 if (vap->iv_bss->ni_wdsvap == vap)
87 vap->iv_bss->ni_wdsvap = NULL;
92 wds_vattach(struct ieee80211vap *vap)
94 vap->iv_newstate = wds_newstate;
95 vap->iv_input = wds_input;
96 vap->iv_recv_mgmt = wds_recv_mgmt;
97 vap->iv_opdetach = wds_vdetach;
101 wds_flush(struct ieee80211_node *ni)
103 struct ieee80211com *ic = ni->ni_ic;
104 struct mbuf *m, *next;
107 m = ieee80211_ageq_remove(&ic->ic_stageq,
108 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
112 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_WDS, ni,
113 "%s", "flush wds queue");
114 ic->ic_node_getsignal(ni, &rssi, &nf);
115 for (; m != NULL; m = next) {
118 ieee80211_input(ni, m, rssi, nf);
123 ieee80211_create_wds(struct ieee80211vap *vap, struct ieee80211_channel *chan)
125 struct ieee80211com *ic = vap->iv_ic;
126 struct ieee80211_node_table *nt = &ic->ic_sta;
127 struct ieee80211_node *ni, *obss;
129 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
130 "%s: creating link to %s on channel %u\n", __func__,
131 ether_sprintf(vap->iv_des_bssid), ieee80211_chan2ieee(ic, chan));
133 /* NB: vap create must specify the bssid for the link */
134 KASSERT(vap->iv_flags & IEEE80211_F_DESBSSID, ("no bssid"));
135 /* NB: we should only be called on RUN transition */
136 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("!RUN state"));
138 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
140 * Dynamic/non-legacy WDS. Reference the associated
141 * station specified by the desired bssid setup at vap
142 * create. Point ni_wdsvap at the WDS vap so 4-address
143 * frames received through the associated AP vap will
144 * be dispatched upward (e.g. to a bridge) as though
145 * they arrived on the WDS vap.
147 IEEE80211_NODE_LOCK(nt);
149 ni = ieee80211_find_node_locked(&ic->ic_sta, vap->iv_des_bssid);
152 * Node went away before we could hookup. This
153 * should be ok; no traffic will flow and a leave
154 * event will be dispatched that should cause
155 * the vap to be destroyed.
157 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
158 "%s: station %s went away\n",
159 __func__, ether_sprintf(vap->iv_des_bssid));
161 } else if (ni->ni_wdsvap != NULL) {
163 * Node already setup with a WDS vap; we cannot
164 * allow multiple references so disallow. If
165 * ni_wdsvap points at us that's ok; we should
168 /* XXX printf instead? */
169 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
170 "%s: station %s in use with %s\n",
171 __func__, ether_sprintf(vap->iv_des_bssid),
172 ni->ni_wdsvap->iv_ifp->if_xname);
176 * Committed to new node, setup state.
182 IEEE80211_NODE_UNLOCK(nt);
184 /* NB: deferred to avoid recursive lock */
185 ieee80211_free_node(obss);
189 * Legacy WDS vap setup.
192 * The far end does not associate so we just create
193 * create a new node and install it as the vap's
194 * bss node. We must simulate an association and
195 * authorize the port for traffic to flow.
196 * XXX check if node already in sta table?
198 ni = ieee80211_node_create_wds(vap, vap->iv_des_bssid, chan);
201 vap->iv_bss = ieee80211_ref_node(ni);
202 ni->ni_flags |= IEEE80211_NODE_AREF;
204 ieee80211_free_node(obss);
205 /* give driver a chance to setup state like ni_txrate */
206 if (ic->ic_newassoc != NULL)
207 ic->ic_newassoc(ni, 1);
208 /* tell the authenticator about new station */
209 if (vap->iv_auth->ia_node_join != NULL)
210 vap->iv_auth->ia_node_join(ni);
211 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
212 ieee80211_node_authorize(ni);
214 ieee80211_notify_node_join(ni, 1 /*newassoc*/);
215 /* XXX inject l2uf frame */
220 * Flush any pending frames now that were setup.
224 return (ni == NULL ? ENOENT : 0);
228 * Propagate multicast frames of an ap vap to all DWDS links.
229 * The caller is assumed to have verified this frame is multicast.
232 ieee80211_dwds_mcast(struct ieee80211vap *vap0, struct mbuf *m)
234 struct ieee80211com *ic = vap0->iv_ic;
235 const struct ether_header *eh = mtod(m, const struct ether_header *);
236 struct ieee80211_node *ni;
237 struct ieee80211vap *vap;
242 KASSERT(ETHER_IS_MULTICAST(eh->ether_dhost),
243 ("%s not mcast", ether_sprintf(eh->ether_dhost)));
246 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
247 /* only DWDS vaps are interesting */
248 if (vap->iv_opmode != IEEE80211_M_WDS ||
249 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY))
251 /* if it came in this interface, don't send it back out */
253 if (ifp == m->m_pkthdr.rcvif)
256 * Duplicate the frame and send it.
258 mcopy = m_copypacket(m, M_NOWAIT);
264 ni = ieee80211_find_txnode(vap, eh->ether_dhost);
266 /* NB: ieee80211_find_txnode does stat+msg */
271 /* calculate priority so drivers can find the tx queue */
272 if (ieee80211_classify(ni, mcopy)) {
273 IEEE80211_DISCARD_MAC(vap,
274 IEEE80211_MSG_OUTPUT | IEEE80211_MSG_WDS,
275 eh->ether_dhost, NULL,
276 "%s", "classification failure");
277 vap->iv_stats.is_tx_classify++;
280 ieee80211_free_node(ni);
284 BPF_MTAP(ifp, m); /* 802.3 tx */
287 * Encapsulate the packet in prep for transmission.
289 mcopy = ieee80211_encap(vap, ni, mcopy);
291 /* NB: stat+msg handled in ieee80211_encap */
292 ieee80211_free_node(ni);
295 mcopy->m_flags |= M_MCAST;
296 mcopy->m_pkthdr.rcvif = (void *) ni;
298 err = ieee80211_parent_xmitpkt(ic, mcopy);
300 /* NB: IFQ_HANDOFF reclaims mbuf */
302 ieee80211_free_node(ni);
309 * Handle DWDS discovery on receipt of a 4-address frame in
310 * ap mode. Queue the frame and post an event for someone
311 * to plumb the necessary WDS vap for this station. Frames
312 * received prior to the vap set running will then be reprocessed
313 * as if they were just received.
316 ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
318 struct ieee80211com *ic = ni->ni_ic;
321 * Save the frame with an aging interval 4 times
322 * the listen interval specified by the station.
323 * Frames that sit around too long are reclaimed
324 * using this information.
325 * XXX handle overflow?
326 * XXX per/vap beacon interval?
328 m->m_pkthdr.rcvif = (void *)(uintptr_t)
329 ieee80211_mac_hash(ic, ni->ni_macaddr);
330 (void) ieee80211_ageq_append(&ic->ic_stageq, m,
331 ((ni->ni_intval * ic->ic_lintval) << 2) / 1024);
332 ieee80211_notify_wds_discover(ni);
336 * IEEE80211_M_WDS vap state machine handler.
339 wds_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
341 struct ieee80211com *ic = vap->iv_ic;
342 struct ieee80211_node *ni;
343 enum ieee80211_state ostate;
346 IEEE80211_LOCK_ASSERT(ic);
348 ostate = vap->iv_state;
349 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
350 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
351 vap->iv_state = nstate; /* state transition */
352 callout_stop(&vap->iv_mgtsend); /* XXX callout_drain */
353 if (ostate != IEEE80211_S_SCAN)
354 ieee80211_cancel_scan(vap); /* background scan */
355 ni = vap->iv_bss; /* NB: no reference held */
358 case IEEE80211_S_INIT:
360 case IEEE80211_S_SCAN:
361 ieee80211_cancel_scan(vap);
366 if (ostate != IEEE80211_S_INIT) {
367 /* NB: optimize INIT -> INIT case */
368 ieee80211_reset_bss(vap);
371 case IEEE80211_S_SCAN:
373 case IEEE80211_S_INIT:
374 ieee80211_check_scan_current(vap);
380 case IEEE80211_S_RUN:
381 if (ostate == IEEE80211_S_INIT) {
383 * Already have a channel; bypass the scan
384 * and startup immediately.
386 error = ieee80211_create_wds(vap, ic->ic_curchan);
396 * Process a received frame. The node associated with the sender
397 * should be supplied. If nothing was found in the node table then
398 * the caller is assumed to supply a reference to iv_bss instead.
399 * The RSSI and a timestamp are also supplied. The RSSI data is used
400 * during AP scanning to select a AP to associate with; it can have
401 * any units so long as values have consistent units and higher values
402 * mean ``better signal''. The receive timestamp is currently not used
403 * by the 802.11 layer.
406 wds_input(struct ieee80211_node *ni, struct mbuf *m, int rssi, int nf)
408 #define HAS_SEQ(type) ((type & 0x4) == 0)
409 struct ieee80211vap *vap = ni->ni_vap;
410 struct ieee80211com *ic = ni->ni_ic;
411 struct ifnet *ifp = vap->iv_ifp;
412 struct ieee80211_frame *wh;
413 struct ieee80211_key *key;
414 struct ether_header *eh;
415 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
416 uint8_t dir, type, subtype, qos;
419 if (m->m_flags & M_AMPDU_MPDU) {
421 * Fastpath for A-MPDU reorder q resubmission. Frames
422 * w/ M_AMPDU_MPDU marked have already passed through
423 * here but were received out of order and been held on
424 * the reorder queue. When resubmitted they are marked
425 * with the M_AMPDU_MPDU flag and we can bypass most of
426 * the normal processing.
428 wh = mtod(m, struct ieee80211_frame *);
429 type = IEEE80211_FC0_TYPE_DATA;
430 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
431 subtype = IEEE80211_FC0_SUBTYPE_QOS;
432 hdrspace = ieee80211_hdrspace(ic, wh); /* XXX optimize? */
436 KASSERT(ni != NULL, ("null node"));
438 type = -1; /* undefined */
440 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
441 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
442 ni->ni_macaddr, NULL,
443 "too short (1): len %u", m->m_pkthdr.len);
444 vap->iv_stats.is_rx_tooshort++;
448 * Bit of a cheat here, we use a pointer for a 3-address
449 * frame format but don't reference fields past outside
450 * ieee80211_frame_min w/o first validating the data is
453 wh = mtod(m, struct ieee80211_frame *);
455 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
456 ni->ni_inact = ni->ni_inact_reload;
458 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
459 IEEE80211_FC0_VERSION_0) {
460 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
461 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
462 wh->i_fc[0], wh->i_fc[1]);
463 vap->iv_stats.is_rx_badversion++;
467 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
468 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
469 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
471 /* NB: WDS vap's do not scan */
472 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_addr4)) {
473 IEEE80211_DISCARD_MAC(vap,
474 IEEE80211_MSG_ANY, ni->ni_macaddr, NULL,
475 "too short (3): len %u", m->m_pkthdr.len);
476 vap->iv_stats.is_rx_tooshort++;
479 /* NB: the TA is implicitly verified by finding the wds peer node */
480 if (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
481 !IEEE80211_ADDR_EQ(wh->i_addr1, ifp->if_broadcastaddr)) {
482 /* not interested in */
483 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
484 wh->i_addr1, NULL, "%s", "not to bss");
485 vap->iv_stats.is_rx_wrongbss++;
488 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
491 uint8_t tid = ieee80211_gettid(wh);
492 if (IEEE80211_QOS_HAS_SEQ(wh) &&
493 TID_TO_WME_AC(tid) >= WME_AC_VI)
494 ic->ic_wme.wme_hipri_traffic++;
495 rxseq = le16toh(*(uint16_t *)wh->i_seq);
496 if (! ieee80211_check_rxseq(ni, wh)) {
497 /* duplicate, discard */
498 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
499 wh->i_addr1, "duplicate",
500 "seqno <%u,%u> fragno <%u,%u> tid %u",
501 rxseq >> IEEE80211_SEQ_SEQ_SHIFT,
502 ni->ni_rxseqs[tid] >> IEEE80211_SEQ_SEQ_SHIFT,
503 rxseq & IEEE80211_SEQ_FRAG_MASK,
504 ni->ni_rxseqs[tid] & IEEE80211_SEQ_FRAG_MASK,
506 vap->iv_stats.is_rx_dup++;
507 IEEE80211_NODE_STAT(ni, rx_dup);
510 ni->ni_rxseqs[tid] = rxseq;
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) != 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 (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 key = ieee80211_crypto_decap(ni, m, hdrspace);
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;
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) {
587 qos = (dir == IEEE80211_FC1_DIR_DSTODS) ?
588 ((struct ieee80211_qosframe_addr4 *)wh)->i_qos[0] :
589 ((struct ieee80211_qosframe *)wh)->i_qos[0];
594 * Next up, any fragmentation.
596 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
597 m = ieee80211_defrag(ni, m, hdrspace);
599 /* Fragment dropped or frame not complete yet */
603 wh = NULL; /* no longer valid, catch any uses */
606 * Next strip any MSDU crypto bits.
608 if (key != NULL && !ieee80211_crypto_demic(vap, key, m, 0)) {
609 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
610 ni->ni_macaddr, "data", "%s", "demic error");
611 vap->iv_stats.is_rx_demicfail++;
612 IEEE80211_NODE_STAT(ni, rx_demicfail);
616 /* copy to listener after decrypt */
617 if (ieee80211_radiotap_active_vap(vap))
618 ieee80211_radiotap_rx(vap, m);
622 * Finally, strip the 802.11 header.
624 m = ieee80211_decap(vap, m, hdrspace);
626 /* XXX mask bit to check for both */
627 /* don't count Null data frames as errors */
628 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
629 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
631 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
632 ni->ni_macaddr, "data", "%s", "decap error");
633 vap->iv_stats.is_rx_decap++;
634 IEEE80211_NODE_STAT(ni, rx_decap);
637 eh = mtod(m, struct ether_header *);
638 if (!ieee80211_node_is_authorized(ni)) {
640 * Deny any non-PAE frames received prior to
641 * authorization. For open/shared-key
642 * authentication the port is mark authorized
643 * after authentication completes. For 802.1x
644 * the port is not marked authorized by the
645 * authenticator until the handshake has completed.
647 if (eh->ether_type != htons(ETHERTYPE_PAE)) {
648 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
649 eh->ether_shost, "data",
650 "unauthorized port: ether type 0x%x len %u",
651 eh->ether_type, m->m_pkthdr.len);
652 vap->iv_stats.is_rx_unauth++;
653 IEEE80211_NODE_STAT(ni, rx_unauth);
658 * When denying unencrypted frames, discard
659 * any non-PAE frames received without encryption.
661 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
662 (key == NULL && (m->m_flags & M_WEP) == 0) &&
663 eh->ether_type != htons(ETHERTYPE_PAE)) {
665 * Drop unencrypted frames.
667 vap->iv_stats.is_rx_unencrypted++;
668 IEEE80211_NODE_STAT(ni, rx_unencrypted);
672 /* XXX require HT? */
673 if (qos & IEEE80211_QOS_AMSDU) {
674 m = ieee80211_decap_amsdu(ni, m);
676 return IEEE80211_FC0_TYPE_DATA;
678 #ifdef IEEE80211_SUPPORT_SUPERG
679 m = ieee80211_decap_fastframe(vap, ni, m);
681 return IEEE80211_FC0_TYPE_DATA;
684 ieee80211_deliver_data(vap, ni, m);
685 return IEEE80211_FC0_TYPE_DATA;
687 case IEEE80211_FC0_TYPE_MGT:
688 vap->iv_stats.is_rx_mgmt++;
689 IEEE80211_NODE_STAT(ni, rx_mgmt);
690 if (dir != IEEE80211_FC1_DIR_NODS) {
691 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
692 wh, "data", "incorrect dir 0x%x", dir);
693 vap->iv_stats.is_rx_wrongdir++;
696 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
697 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
698 ni->ni_macaddr, "mgt", "too short: len %u",
700 vap->iv_stats.is_rx_tooshort++;
703 #ifdef IEEE80211_DEBUG
704 if (ieee80211_msg_debug(vap) || ieee80211_msg_dumppkts(vap)) {
705 if_printf(ifp, "received %s from %s rssi %d\n",
706 ieee80211_mgt_subtype_name[subtype >>
707 IEEE80211_FC0_SUBTYPE_SHIFT],
708 ether_sprintf(wh->i_addr2), rssi);
711 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
712 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
713 wh, NULL, "%s", "WEP set but not permitted");
714 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
717 vap->iv_recv_mgmt(ni, m, subtype, rssi, nf);
720 case IEEE80211_FC0_TYPE_CTL:
721 vap->iv_stats.is_rx_ctl++;
722 IEEE80211_NODE_STAT(ni, rx_ctrl);
726 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
727 wh, "bad", "frame type 0x%x", type);
728 /* should not come here */
735 if (need_tap && ieee80211_radiotap_active_vap(vap))
736 ieee80211_radiotap_rx(vap, m);
743 wds_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
744 int subtype, int rssi, int nf)
746 struct ieee80211vap *vap = ni->ni_vap;
747 struct ieee80211com *ic = ni->ni_ic;
748 struct ieee80211_frame *wh;
749 u_int8_t *frm, *efrm;
751 wh = mtod(m0, struct ieee80211_frame *);
752 frm = (u_int8_t *)&wh[1];
753 efrm = mtod(m0, u_int8_t *) + m0->m_len;
755 case IEEE80211_FC0_SUBTYPE_ACTION:
756 case IEEE80211_FC0_SUBTYPE_ACTION_NOACK:
757 if (ni == vap->iv_bss) {
758 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
759 wh, NULL, "%s", "unknown node");
760 vap->iv_stats.is_rx_mgtdiscard++;
761 } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1)) {
762 /* NB: not interested in multicast frames. */
763 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
764 wh, NULL, "%s", "not for us");
765 vap->iv_stats.is_rx_mgtdiscard++;
766 } else if (vap->iv_state != IEEE80211_S_RUN) {
767 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
768 wh, NULL, "wrong state %s",
769 ieee80211_state_name[vap->iv_state]);
770 vap->iv_stats.is_rx_mgtdiscard++;
772 if (ieee80211_parse_action(ni, m0) == 0)
773 (void)ic->ic_recv_action(ni, wh, frm, efrm);
777 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
778 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
779 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
780 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
781 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
782 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
783 case IEEE80211_FC0_SUBTYPE_BEACON:
784 case IEEE80211_FC0_SUBTYPE_ATIM:
785 case IEEE80211_FC0_SUBTYPE_DISASSOC:
786 case IEEE80211_FC0_SUBTYPE_AUTH:
787 case IEEE80211_FC0_SUBTYPE_DEAUTH:
788 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
789 wh, NULL, "%s", "not handled");
790 vap->iv_stats.is_rx_mgtdiscard++;
794 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
795 wh, "mgt", "subtype 0x%x not handled", subtype);
796 vap->iv_stats.is_rx_badsubtype++;