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.
25 * $FreeBSD: head/sys/net80211/ieee80211_wds.c 203422 2010-02-03 10:07:43Z rpaulo $
29 * IEEE 802.11 WDS mode support.
34 #include <sys/param.h>
35 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/kernel.h>
40 #include <sys/socket.h>
41 #include <sys/sockio.h>
42 #include <sys/endian.h>
43 #include <sys/errno.h>
45 #include <sys/sysctl.h>
48 #include <net/if_media.h>
49 #include <net/if_llc.h>
50 #include <net/ethernet.h>
51 #include <net/route.h>
55 #include <netproto/802_11/ieee80211_var.h>
56 #include <netproto/802_11/ieee80211_wds.h>
57 #include <netproto/802_11/ieee80211_input.h>
58 #ifdef IEEE80211_SUPPORT_SUPERG
59 #include <netproto/802_11/ieee80211_superg.h>
62 static void wds_vattach(struct ieee80211vap *);
63 static int wds_newstate(struct ieee80211vap *, enum ieee80211_state, int);
64 static int wds_input(struct ieee80211_node *ni, struct mbuf *m, int, int);
65 static void wds_recv_mgmt(struct ieee80211_node *, struct mbuf *,
66 int subtype, int, int);
69 ieee80211_wds_attach(struct ieee80211com *ic)
71 ic->ic_vattach[IEEE80211_M_WDS] = wds_vattach;
75 ieee80211_wds_detach(struct ieee80211com *ic)
80 wds_vdetach(struct ieee80211vap *vap)
82 if (vap->iv_bss != NULL) {
84 if (vap->iv_bss->ni_wdsvap == vap)
85 vap->iv_bss->ni_wdsvap = NULL;
90 wds_vattach(struct ieee80211vap *vap)
92 vap->iv_newstate = wds_newstate;
93 vap->iv_input = wds_input;
94 vap->iv_recv_mgmt = wds_recv_mgmt;
95 vap->iv_opdetach = wds_vdetach;
99 wds_flush(struct ieee80211_node *ni)
101 struct ieee80211com *ic = ni->ni_ic;
102 struct mbuf *m, *next;
105 m = ieee80211_ageq_remove(&ic->ic_stageq,
106 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
110 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_WDS, ni,
111 "%s", "flush wds queue");
112 ic->ic_node_getsignal(ni, &rssi, &nf);
113 for (; m != NULL; m = next) {
116 ieee80211_input(ni, m, rssi, nf);
121 ieee80211_create_wds(struct ieee80211vap *vap, struct ieee80211_channel *chan)
123 struct ieee80211com *ic = vap->iv_ic;
124 /* struct ieee80211_node_table *nt = &ic->ic_sta;*/
125 struct ieee80211_node *ni, *obss;
126 #ifdef IEEE80211_DEBUG
127 char ethstr[ETHER_ADDRSTRLEN + 1];
130 IEEE80211_DPRINTF(vap, IEEE80211_MSG_WDS,
131 "%s: creating link to %s on channel %u\n", __func__,
132 kether_ntoa(vap->iv_des_bssid, ethstr), ieee80211_chan2ieee(ic, chan));
134 /* NB: vap create must specify the bssid for the link */
135 KASSERT(vap->iv_flags & IEEE80211_F_DESBSSID, ("no bssid"));
136 /* NB: we should only be called on RUN transition */
137 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("!RUN state"));
139 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
141 * Dynamic/non-legacy WDS. Reference the associated
142 * station specified by the desired bssid setup at vap
143 * create. Point ni_wdsvap at the WDS vap so 4-address
144 * frames received through the associated AP vap will
145 * be dispatched upward (e.g. to a bridge) as though
146 * they arrived on the WDS vap.
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__, kether_ntoa(vap->iv_des_bssid, ethstr));
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__, kether_ntoa(vap->iv_des_bssid, ethstr),
172 ni->ni_wdsvap->iv_ifp->if_xname);
176 * Committed to new node, setup state.
183 /* NB: deferred to avoid recursive lock */
184 ieee80211_free_node(obss);
188 * Legacy WDS vap setup.
191 * The far end does not associate so we just create
192 * create a new node and install it as the vap's
193 * bss node. We must simulate an association and
194 * authorize the port for traffic to flow.
195 * XXX check if node already in sta table?
197 ni = ieee80211_node_create_wds(vap, vap->iv_des_bssid, chan);
200 vap->iv_bss = ieee80211_ref_node(ni);
201 ni->ni_flags |= IEEE80211_NODE_AREF;
203 ieee80211_free_node(obss);
204 /* give driver a chance to setup state like ni_txrate */
205 if (ic->ic_newassoc != NULL)
206 ic->ic_newassoc(ni, 1);
207 /* tell the authenticator about new station */
208 if (vap->iv_auth->ia_node_join != NULL)
209 vap->iv_auth->ia_node_join(ni);
210 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
211 ieee80211_node_authorize(ni);
213 ieee80211_notify_node_join(ni, 1 /*newassoc*/);
214 /* XXX inject l2uf frame */
219 * Flush any pending frames now that were setup.
223 return (ni == NULL ? ENOENT : 0);
227 * Propagate multicast frames of an ap vap to all DWDS links.
228 * The caller is assumed to have verified this frame is multicast.
231 ieee80211_dwds_mcast(struct ieee80211vap *vap0, struct mbuf *m)
233 struct ieee80211com *ic = vap0->iv_ic;
234 struct ifnet *parent = ic->ic_ifp;
235 const struct ether_header *eh = mtod(m, const struct ether_header *);
236 struct ieee80211_node *ni;
237 struct ieee80211vap *vap;
241 char ethstr[ETHER_ADDRSTRLEN + 1];
243 KASSERT(ETHER_IS_MULTICAST(eh->ether_dhost),
244 ("%s not mcast", kether_ntoa(eh->ether_dhost, ethstr)));
247 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
248 /* only DWDS vaps are interesting */
249 if (vap->iv_opmode != IEEE80211_M_WDS ||
250 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY))
252 /* if it came in this interface, don't send it back out */
254 if (ifp == m->m_pkthdr.rcvif)
257 * Duplicate the frame and send it.
259 mcopy = m_copypacket(m, MB_DONTWAIT);
261 IFNET_STAT_INC(ifp, oerrors, 1);
265 ni = ieee80211_find_txnode(vap, eh->ether_dhost);
267 /* NB: ieee80211_find_txnode does stat+msg */
268 IFNET_STAT_INC(ifp, oerrors, 1);
272 /* calculate priority so drivers can find the tx queue */
273 if (ieee80211_classify(ni, mcopy)) {
274 IEEE80211_DISCARD_MAC(vap,
275 IEEE80211_MSG_OUTPUT | IEEE80211_MSG_WDS,
276 eh->ether_dhost, NULL,
277 "%s", "classification failure");
278 vap->iv_stats.is_tx_classify++;
279 IFNET_STAT_INC(ifp, oerrors, 1);
281 ieee80211_free_node(ni);
285 BPF_MTAP(ifp, m); /* 802.3 tx */
288 * Encapsulate the packet in prep for transmission.
290 mcopy = ieee80211_encap(vap, ni, mcopy);
292 /* NB: stat+msg handled in ieee80211_encap */
293 ieee80211_free_node(ni);
296 mcopy->m_flags |= M_MCAST;
297 mcopy->m_pkthdr.rcvif = (void *) ni;
299 err = ieee80211_handoff(parent, mcopy);
301 /* NB: IFQ_HANDOFF reclaims mbuf */
302 IFNET_STAT_INC(ifp, oerrors, 1);
303 ieee80211_free_node(ni);
305 IFNET_STAT_INC(ifp, opackets, 1);
310 * Handle DWDS discovery on receipt of a 4-address frame in
311 * ap mode. Queue the frame and post an event for someone
312 * to plumb the necessary WDS vap for this station. Frames
313 * received prior to the vap set running will then be reprocessed
314 * as if they were just received.
317 ieee80211_dwds_discover(struct ieee80211_node *ni, struct mbuf *m)
319 struct ieee80211com *ic = ni->ni_ic;
322 * Save the frame with an aging interval 4 times
323 * the listen interval specified by the station.
324 * Frames that sit around too long are reclaimed
325 * using this information.
326 * XXX handle overflow?
327 * XXX per/vap beacon interval?
329 m->m_pkthdr.rcvif = (void *)(uintptr_t)
330 ieee80211_mac_hash(ic, ni->ni_macaddr);
331 (void) ieee80211_ageq_append(&ic->ic_stageq, m,
332 ((ni->ni_intval * ic->ic_lintval) << 2) / 1024);
333 ieee80211_notify_wds_discover(ni);
337 * IEEE80211_M_WDS vap state machine handler.
340 wds_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
342 struct ieee80211com *ic = vap->iv_ic;
343 enum ieee80211_state ostate;
346 ostate = vap->iv_state;
347 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
348 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
349 vap->iv_state = nstate; /* state transition */
350 callout_stop(&vap->iv_mgtsend); /* XXX callout_drain */
351 if (ostate != IEEE80211_S_SCAN)
352 ieee80211_cancel_scan(vap); /* background scan */
355 case IEEE80211_S_INIT:
357 case IEEE80211_S_SCAN:
358 ieee80211_cancel_scan(vap);
363 if (ostate != IEEE80211_S_INIT) {
364 /* NB: optimize INIT -> INIT case */
365 ieee80211_reset_bss(vap);
368 case IEEE80211_S_SCAN:
370 case IEEE80211_S_INIT:
371 ieee80211_check_scan_current(vap);
377 case IEEE80211_S_RUN:
378 if (ostate == IEEE80211_S_INIT) {
380 * Already have a channel; bypass the scan
381 * and startup immediately.
383 error = ieee80211_create_wds(vap, ic->ic_curchan);
393 * Process a received frame. The node associated with the sender
394 * should be supplied. If nothing was found in the node table then
395 * the caller is assumed to supply a reference to iv_bss instead.
396 * The RSSI and a timestamp are also supplied. The RSSI data is used
397 * during AP scanning to select a AP to associate with; it can have
398 * any units so long as values have consistent units and higher values
399 * mean ``better signal''. The receive timestamp is currently not used
400 * by the 802.11 layer.
403 wds_input(struct ieee80211_node *ni, struct mbuf *m, int rssi, int nf)
405 #define SEQ_LEQ(a,b) ((int)((a)-(b)) <= 0)
406 #define HAS_SEQ(type) ((type & 0x4) == 0)
407 struct ieee80211vap *vap = ni->ni_vap;
408 struct ieee80211com *ic = ni->ni_ic;
409 struct ifnet *ifp = vap->iv_ifp;
410 struct ieee80211_frame *wh;
411 struct ieee80211_key *key;
412 struct ether_header *eh;
413 int hdrspace, need_tap = 1; /* mbuf need to be tapped. */
414 uint8_t dir, type, subtype, qos;
416 #ifdef IEEE80211_DEBUG
417 char ethstr[ETHER_ADDRSTRLEN + 1];
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 ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
456 IEEE80211_FC0_VERSION_0) {
457 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
458 ni->ni_macaddr, NULL, "wrong version, fc %02x:%02x",
459 wh->i_fc[0], wh->i_fc[1]);
460 vap->iv_stats.is_rx_badversion++;
464 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
465 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
466 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
468 /* NB: WDS vap's do not scan */
469 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_addr4)) {
470 IEEE80211_DISCARD_MAC(vap,
471 IEEE80211_MSG_ANY, ni->ni_macaddr, NULL,
472 "too short (3): len %u", m->m_pkthdr.len);
473 vap->iv_stats.is_rx_tooshort++;
476 /* NB: the TA is implicitly verified by finding the wds peer node */
477 if (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
478 !IEEE80211_ADDR_EQ(wh->i_addr1, ifp->if_broadcastaddr)) {
479 /* not interested in */
480 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
481 wh->i_addr1, NULL, "%s", "not to bss");
482 vap->iv_stats.is_rx_wrongbss++;
485 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
488 uint8_t tid = ieee80211_gettid(wh);
489 if (IEEE80211_QOS_HAS_SEQ(wh) &&
490 TID_TO_WME_AC(tid) >= WME_AC_VI)
491 ic->ic_wme.wme_hipri_traffic++;
492 rxseq = le16toh(*(uint16_t *)wh->i_seq);
493 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0 &&
494 (wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
495 SEQ_LEQ(rxseq, ni->ni_rxseqs[tid])) {
496 /* duplicate, discard */
497 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
498 wh->i_addr1, "duplicate",
499 "seqno <%u,%u> fragno <%u,%u> tid %u",
500 rxseq >> IEEE80211_SEQ_SEQ_SHIFT,
501 ni->ni_rxseqs[tid] >> IEEE80211_SEQ_SEQ_SHIFT,
502 rxseq & IEEE80211_SEQ_FRAG_MASK,
503 ni->ni_rxseqs[tid] & IEEE80211_SEQ_FRAG_MASK,
505 vap->iv_stats.is_rx_dup++;
506 IEEE80211_NODE_STAT(ni, rx_dup);
509 ni->ni_rxseqs[tid] = rxseq;
512 case IEEE80211_FC0_TYPE_DATA:
513 hdrspace = ieee80211_hdrspace(ic, wh);
514 if (m->m_len < hdrspace &&
515 (m = m_pullup(m, hdrspace)) == NULL) {
516 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
517 ni->ni_macaddr, NULL,
518 "data too short: expecting %u", hdrspace);
519 vap->iv_stats.is_rx_tooshort++;
522 if (dir != IEEE80211_FC1_DIR_DSTODS) {
523 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
524 wh, "data", "incorrect dir 0x%x", dir);
525 vap->iv_stats.is_rx_wrongdir++;
529 * Only legacy WDS traffic should take this path.
531 if ((vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) == 0) {
532 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
533 wh, "data", "%s", "not legacy wds");
534 vap->iv_stats.is_rx_wrongdir++;/*XXX*/
537 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
538 ni->ni_inact = ni->ni_inact_reload;
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) != 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 (wh->i_fc[1] & IEEE80211_FC1_WEP) {
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 key = ieee80211_crypto_decap(ni, m, hdrspace);
573 /* NB: stats+msgs handled in crypto_decap */
574 IEEE80211_NODE_STAT(ni, rx_wepfail);
577 wh = mtod(m, struct ieee80211_frame *);
578 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
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) {
588 qos = (dir == IEEE80211_FC1_DIR_DSTODS) ?
589 ((struct ieee80211_qosframe_addr4 *)wh)->i_qos[0] :
590 ((struct ieee80211_qosframe *)wh)->i_qos[0];
595 * Next up, any fragmentation.
597 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
598 m = ieee80211_defrag(ni, m, hdrspace);
600 /* Fragment dropped or frame not complete yet */
604 wh = NULL; /* no longer valid, catch any uses */
607 * Next strip any MSDU crypto bits.
609 if (key != NULL && !ieee80211_crypto_demic(vap, key, m, 0)) {
610 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
611 ni->ni_macaddr, "data", "%s", "demic error");
612 vap->iv_stats.is_rx_demicfail++;
613 IEEE80211_NODE_STAT(ni, rx_demicfail);
617 /* copy to listener after decrypt */
618 if (ieee80211_radiotap_active_vap(vap))
619 ieee80211_radiotap_rx(vap, m);
623 * Finally, strip the 802.11 header.
625 m = ieee80211_decap(vap, m, hdrspace);
627 /* XXX mask bit to check for both */
628 /* don't count Null data frames as errors */
629 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
630 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
632 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
633 ni->ni_macaddr, "data", "%s", "decap error");
634 vap->iv_stats.is_rx_decap++;
635 IEEE80211_NODE_STAT(ni, rx_decap);
638 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.
648 if (eh->ether_type != htons(ETHERTYPE_PAE)) {
649 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
650 eh->ether_shost, "data",
651 "unauthorized port: ether type 0x%x len %u",
652 eh->ether_type, m->m_pkthdr.len);
653 vap->iv_stats.is_rx_unauth++;
654 IEEE80211_NODE_STAT(ni, rx_unauth);
659 * When denying unencrypted frames, discard
660 * any non-PAE frames received without encryption.
662 if ((vap->iv_flags & IEEE80211_F_DROPUNENC) &&
663 (key == NULL && (m->m_flags & M_WEP) == 0) &&
664 eh->ether_type != htons(ETHERTYPE_PAE)) {
666 * Drop unencrypted frames.
668 vap->iv_stats.is_rx_unencrypted++;
669 IEEE80211_NODE_STAT(ni, rx_unencrypted);
673 /* XXX require HT? */
674 if (qos & IEEE80211_QOS_AMSDU) {
675 m = ieee80211_decap_amsdu(ni, m);
677 return IEEE80211_FC0_TYPE_DATA;
679 #ifdef IEEE80211_SUPPORT_SUPERG
680 m = ieee80211_decap_fastframe(vap, ni, m);
682 return IEEE80211_FC0_TYPE_DATA;
685 ieee80211_deliver_data(vap, ni, m);
686 return IEEE80211_FC0_TYPE_DATA;
688 case IEEE80211_FC0_TYPE_MGT:
689 vap->iv_stats.is_rx_mgmt++;
690 IEEE80211_NODE_STAT(ni, rx_mgmt);
691 if (dir != IEEE80211_FC1_DIR_NODS) {
692 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
693 wh, "data", "incorrect dir 0x%x", dir);
694 vap->iv_stats.is_rx_wrongdir++;
697 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
698 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
699 ni->ni_macaddr, "mgt", "too short: len %u",
701 vap->iv_stats.is_rx_tooshort++;
704 #ifdef IEEE80211_DEBUG
705 if (ieee80211_msg_debug(vap) || ieee80211_msg_dumppkts(vap)) {
706 if_printf(ifp, "received %s from %s rssi %d\n",
707 ieee80211_mgt_subtype_name[subtype >>
708 IEEE80211_FC0_SUBTYPE_SHIFT],
709 kether_ntoa(wh->i_addr2, ethstr), rssi);
712 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
713 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
714 wh, NULL, "%s", "WEP set but not permitted");
715 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
718 vap->iv_recv_mgmt(ni, m, subtype, rssi, nf);
721 case IEEE80211_FC0_TYPE_CTL:
722 vap->iv_stats.is_rx_ctl++;
723 IEEE80211_NODE_STAT(ni, rx_ctrl);
727 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
728 wh, "bad", "frame type 0x%x", type);
729 /* should not come here */
733 IFNET_STAT_INC(ifp, ierrors, 1);
736 if (need_tap && ieee80211_radiotap_active_vap(vap))
737 ieee80211_radiotap_rx(vap, m);
745 wds_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
746 int subtype, int rssi, int nf)
748 struct ieee80211vap *vap = ni->ni_vap;
749 struct ieee80211com *ic = ni->ni_ic;
750 struct ieee80211_frame *wh;
751 u_int8_t *frm, *efrm;
753 wh = mtod(m0, struct ieee80211_frame *);
754 frm = (u_int8_t *)&wh[1];
755 efrm = mtod(m0, u_int8_t *) + m0->m_len;
757 case IEEE80211_FC0_SUBTYPE_DEAUTH:
758 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
759 case IEEE80211_FC0_SUBTYPE_BEACON:
760 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
761 case IEEE80211_FC0_SUBTYPE_AUTH:
762 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
763 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
764 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
765 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
766 case IEEE80211_FC0_SUBTYPE_DISASSOC:
767 vap->iv_stats.is_rx_mgtdiscard++;
769 case IEEE80211_FC0_SUBTYPE_ACTION:
770 if (vap->iv_state != IEEE80211_S_RUN ||
771 IEEE80211_IS_MULTICAST(wh->i_addr1)) {
772 vap->iv_stats.is_rx_mgtdiscard++;
775 ni->ni_inact = ni->ni_inact_reload;
776 if (ieee80211_parse_action(ni, m0) == 0)
777 ic->ic_recv_action(ni, wh, frm, efrm);
780 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
781 wh, "mgt", "subtype 0x%x not handled", subtype);
782 vap->iv_stats.is_rx_badsubtype++;