2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
35 #include <sys/malloc.h>
36 #include <sys/endian.h>
37 #include <sys/kernel.h>
39 #include <sys/socket.h>
41 #include <net/ethernet.h>
43 #include <net/if_llc.h>
44 #include <net/if_media.h>
45 #include <net/if_vlan_var.h>
47 #include <net80211/ieee80211_var.h>
48 #include <net80211/ieee80211_input.h>
53 #include <netinet/in.h>
54 #include <net/ethernet.h>
58 ieee80211_input_all(struct ieee80211com *ic, struct mbuf *m, int rssi, int nf)
60 struct ieee80211vap *vap;
64 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
65 struct ieee80211_node *ni;
69 * WDS vap's only receive directed traffic from the
70 * station at the ``far end''. That traffic should
71 * be passed through the AP vap the station is associated
72 * to--so don't spam them with mcast frames.
74 if (vap->iv_opmode == IEEE80211_M_WDS)
76 if (TAILQ_NEXT(vap, iv_next) != NULL) {
78 * Packet contents are changed by ieee80211_decap
79 * so do a deep copy of the packet.
81 mcopy = m_dup(m, M_DONTWAIT);
90 ni = ieee80211_ref_node(vap->iv_bss);
91 type = ieee80211_input(ni, mcopy, rssi, nf);
92 ieee80211_free_node(ni);
94 if (m != NULL) /* no vaps, reclaim mbuf */
100 * This function reassembles fragments.
102 * XXX should handle 3 concurrent reassemblies per-spec.
105 ieee80211_defrag(struct ieee80211_node *ni, struct mbuf *m, int hdrspace)
107 struct ieee80211vap *vap = ni->ni_vap;
108 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
109 struct ieee80211_frame *lwh;
112 uint8_t more_frag = wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG;
115 KASSERT(!IEEE80211_IS_MULTICAST(wh->i_addr1), ("multicast fragm?"));
117 rxseq = le16toh(*(uint16_t *)wh->i_seq);
118 fragno = rxseq & IEEE80211_SEQ_FRAG_MASK;
120 /* Quick way out, if there's nothing to defragment */
121 if (!more_frag && fragno == 0 && ni->ni_rxfrag[0] == NULL)
125 * Remove frag to insure it doesn't get reaped by timer.
127 if (ni->ni_table == NULL) {
129 * Should never happen. If the node is orphaned (not in
130 * the table) then input packets should not reach here.
131 * Otherwise, a concurrent request that yanks the table
132 * should be blocked by other interlocking and/or by first
133 * shutting the driver down. Regardless, be defensive
136 /* XXX need msg+stat */
140 IEEE80211_NODE_LOCK(ni->ni_table);
141 mfrag = ni->ni_rxfrag[0];
142 ni->ni_rxfrag[0] = NULL;
143 IEEE80211_NODE_UNLOCK(ni->ni_table);
146 * Validate new fragment is in order and
147 * related to the previous ones.
152 lwh = mtod(mfrag, struct ieee80211_frame *);
153 last_rxseq = le16toh(*(uint16_t *)lwh->i_seq);
154 /* NB: check seq # and frag together */
155 if (rxseq != last_rxseq+1 ||
156 !IEEE80211_ADDR_EQ(wh->i_addr1, lwh->i_addr1) ||
157 !IEEE80211_ADDR_EQ(wh->i_addr2, lwh->i_addr2)) {
159 * Unrelated fragment or no space for it,
160 * clear current fragments.
168 if (fragno != 0) { /* !first fragment, discard */
169 vap->iv_stats.is_rx_defrag++;
170 IEEE80211_NODE_STAT(ni, rx_defrag);
175 } else { /* concatenate */
176 m_adj(m, hdrspace); /* strip header */
178 /* NB: m_cat doesn't update the packet header */
179 mfrag->m_pkthdr.len += m->m_pkthdr.len;
180 /* track last seqnum and fragno */
181 lwh = mtod(mfrag, struct ieee80211_frame *);
182 *(uint16_t *) lwh->i_seq = *(uint16_t *) wh->i_seq;
184 if (more_frag) { /* more to come, save */
185 ni->ni_rxfragstamp = ticks;
186 ni->ni_rxfrag[0] = mfrag;
193 ieee80211_deliver_data(struct ieee80211vap *vap,
194 struct ieee80211_node *ni, struct mbuf *m)
196 struct ether_header *eh = mtod(m, struct ether_header *);
197 struct ifnet *ifp = vap->iv_ifp;
199 /* NB: see hostap_deliver_data, this path doesn't handle hostap */
200 KASSERT(vap->iv_opmode != IEEE80211_M_HOSTAP, ("gack, hostap"));
205 IEEE80211_NODE_STAT(ni, rx_data);
206 IEEE80211_NODE_STAT_ADD(ni, rx_bytes, m->m_pkthdr.len);
207 if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
208 m->m_flags |= M_MCAST; /* XXX M_BCAST? */
209 IEEE80211_NODE_STAT(ni, rx_mcast);
211 IEEE80211_NODE_STAT(ni, rx_ucast);
212 m->m_pkthdr.rcvif = ifp;
214 /* clear driver/net80211 flags before passing up */
215 m->m_flags &= ~M_80211_RX;
217 if (ni->ni_vlan != 0) {
218 /* attach vlan tag */
219 m->m_pkthdr.ether_vtag = ni->ni_vlan;
220 m->m_flags |= M_VLANTAG;
222 ifp->if_input(ifp, m);
226 ieee80211_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen)
228 struct ieee80211_qosframe_addr4 wh; /* Max size address frames */
229 struct ether_header *eh;
232 if (m->m_len < hdrlen + sizeof(*llc) &&
233 (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) {
237 memcpy(&wh, mtod(m, caddr_t), hdrlen);
238 llc = (struct llc *)(mtod(m, caddr_t) + hdrlen);
239 if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP &&
240 llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 &&
241 llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 &&
242 /* NB: preserve AppleTalk frames that have a native SNAP hdr */
243 !(llc->llc_snap.ether_type == htons(ETHERTYPE_AARP) ||
244 llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) {
245 m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh));
248 m_adj(m, hdrlen - sizeof(*eh));
250 eh = mtod(m, struct ether_header *);
251 switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) {
252 case IEEE80211_FC1_DIR_NODS:
253 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1);
254 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2);
256 case IEEE80211_FC1_DIR_TODS:
257 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3);
258 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2);
260 case IEEE80211_FC1_DIR_FROMDS:
261 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1);
262 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr3);
264 case IEEE80211_FC1_DIR_DSTODS:
265 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3);
266 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr4);
269 #ifdef ALIGNED_POINTER
270 if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) {
271 struct mbuf *n, *n0, **np;
278 pktlen = m->m_pkthdr.len;
279 while (pktlen > off) {
281 MGETHDR(n, M_DONTWAIT, MT_DATA);
289 MGET(n, M_DONTWAIT, MT_DATA);
297 if (pktlen - off >= MINCLSIZE) {
298 MCLGET(n, M_DONTWAIT);
299 if (n->m_flags & M_EXT)
300 n->m_len = n->m_ext.ext_size;
304 (caddr_t)ALIGN(n->m_data + sizeof(*eh)) -
306 n->m_len -= newdata - n->m_data;
309 if (n->m_len > pktlen - off)
310 n->m_len = pktlen - off;
311 m_copydata(m, off, n->m_len, mtod(n, caddr_t));
319 #endif /* ALIGNED_POINTER */
321 eh = mtod(m, struct ether_header *);
322 eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh));
328 * Decap a frame encapsulated in a fast-frame/A-MSDU.
331 ieee80211_decap1(struct mbuf *m, int *framelen)
333 #define FF_LLC_SIZE (sizeof(struct ether_header) + sizeof(struct llc))
334 struct ether_header *eh;
338 * The frame has an 802.3 header followed by an 802.2
339 * LLC header. The encapsulated frame length is in the
340 * first header type field; save that and overwrite it
341 * with the true type field found in the second. Then
342 * copy the 802.3 header up to where it belongs and
343 * adjust the mbuf contents to remove the void.
345 if (m->m_len < FF_LLC_SIZE && (m = m_pullup(m, FF_LLC_SIZE)) == NULL)
347 eh = mtod(m, struct ether_header *); /* 802.3 header is first */
348 llc = (struct llc *)&eh[1]; /* 802.2 header follows */
349 *framelen = ntohs(eh->ether_type) /* encap'd frame size */
350 + sizeof(struct ether_header) - sizeof(struct llc);
351 eh->ether_type = llc->llc_un.type_snap.ether_type;
352 ovbcopy(eh, mtod(m, uint8_t *) + sizeof(struct llc),
353 sizeof(struct ether_header));
354 m_adj(m, sizeof(struct llc));
360 * Install received rate set information in the node's state block.
363 ieee80211_setup_rates(struct ieee80211_node *ni,
364 const uint8_t *rates, const uint8_t *xrates, int flags)
366 struct ieee80211vap *vap = ni->ni_vap;
367 struct ieee80211_rateset *rs = &ni->ni_rates;
369 memset(rs, 0, sizeof(*rs));
370 rs->rs_nrates = rates[1];
371 memcpy(rs->rs_rates, rates + 2, rs->rs_nrates);
372 if (xrates != NULL) {
375 * Tack on 11g extended supported rate element.
378 if (rs->rs_nrates + nxrates > IEEE80211_RATE_MAXSIZE) {
379 nxrates = IEEE80211_RATE_MAXSIZE - rs->rs_nrates;
380 IEEE80211_NOTE(vap, IEEE80211_MSG_XRATE, ni,
381 "extended rate set too large; only using "
382 "%u of %u rates", nxrates, xrates[1]);
383 vap->iv_stats.is_rx_rstoobig++;
385 memcpy(rs->rs_rates + rs->rs_nrates, xrates+2, nxrates);
386 rs->rs_nrates += nxrates;
388 return ieee80211_fix_rate(ni, rs, flags);
392 * Send a management frame error response to the specified
393 * station. If ni is associated with the station then use
394 * it; otherwise allocate a temporary node suitable for
395 * transmitting the frame and then free the reference so
396 * it will go away as soon as the frame has been transmitted.
399 ieee80211_send_error(struct ieee80211_node *ni,
400 const uint8_t mac[IEEE80211_ADDR_LEN], int subtype, int arg)
402 struct ieee80211vap *vap = ni->ni_vap;
405 if (ni == vap->iv_bss) {
406 if (vap->iv_state != IEEE80211_S_RUN) {
408 * XXX hack until we get rid of this routine.
409 * We can be called prior to the vap reaching
410 * run state under certain conditions in which
411 * case iv_bss->ni_chan will not be setup.
412 * Check for this explicitly and and just ignore
417 ni = ieee80211_tmp_node(vap, mac);
425 IEEE80211_SEND_MGMT(ni, subtype, arg);
427 ieee80211_free_node(ni);
431 ieee80211_alloc_challenge(struct ieee80211_node *ni)
433 if (ni->ni_challenge == NULL)
434 ni->ni_challenge = (uint32_t *) malloc(IEEE80211_CHALLENGE_LEN,
435 M_80211_NODE, M_NOWAIT);
436 if (ni->ni_challenge == NULL) {
437 IEEE80211_NOTE(ni->ni_vap,
438 IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH, ni,
439 "%s", "shared key challenge alloc failed");
442 return (ni->ni_challenge != NULL);
446 * Parse a Beacon or ProbeResponse frame and return the
447 * useful information in an ieee80211_scanparams structure.
448 * Status is set to 0 if no problems were found; otherwise
449 * a bitmask of IEEE80211_BPARSE_* items is returned that
450 * describes the problems detected.
453 ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
454 struct ieee80211_scanparams *scan)
456 struct ieee80211vap *vap = ni->ni_vap;
457 struct ieee80211com *ic = ni->ni_ic;
458 struct ieee80211_frame *wh;
461 wh = mtod(m, struct ieee80211_frame *);
462 frm = (uint8_t *)&wh[1];
463 efrm = mtod(m, uint8_t *) + m->m_len;
466 * beacon/probe response frame format
468 * [2] beacon interval
469 * [2] capability information
471 * [tlv] supported rates
472 * [tlv] country information
473 * [tlv] parameter set (FH/DS)
474 * [tlv] erp information
475 * [tlv] extended supported rates
478 * [tlv] HT capabilities
479 * [tlv] HT information
480 * [tlv] Atheros capabilities
482 IEEE80211_VERIFY_LENGTH(efrm - frm, 12,
483 return (scan->status = IEEE80211_BPARSE_BADIELEN));
484 memset(scan, 0, sizeof(*scan));
485 scan->tstamp = frm; frm += 8;
486 scan->bintval = le16toh(*(uint16_t *)frm); frm += 2;
487 scan->capinfo = le16toh(*(uint16_t *)frm); frm += 2;
488 scan->bchan = ieee80211_chan2ieee(ic, ic->ic_curchan);
489 scan->chan = scan->bchan;
491 scan->ies_len = efrm - frm;
493 while (efrm - frm > 1) {
494 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2,
495 return (scan->status = IEEE80211_BPARSE_BADIELEN));
497 case IEEE80211_ELEMID_SSID:
500 case IEEE80211_ELEMID_RATES:
503 case IEEE80211_ELEMID_COUNTRY:
506 case IEEE80211_ELEMID_FHPARMS:
507 if (ic->ic_phytype == IEEE80211_T_FH) {
508 scan->fhdwell = LE_READ_2(&frm[2]);
509 scan->chan = IEEE80211_FH_CHAN(frm[4], frm[5]);
510 scan->fhindex = frm[6];
513 case IEEE80211_ELEMID_DSPARMS:
515 * XXX hack this since depending on phytype
516 * is problematic for multi-mode devices.
518 if (ic->ic_phytype != IEEE80211_T_FH)
521 case IEEE80211_ELEMID_TIM:
524 scan->timoff = frm - mtod(m, uint8_t *);
526 case IEEE80211_ELEMID_IBSSPARMS:
527 case IEEE80211_ELEMID_CFPARMS:
528 case IEEE80211_ELEMID_PWRCNSTR:
529 /* NB: avoid debugging complaints */
531 case IEEE80211_ELEMID_XRATES:
534 case IEEE80211_ELEMID_ERP:
536 IEEE80211_DISCARD_IE(vap,
537 IEEE80211_MSG_ELEMID, wh, "ERP",
538 "bad len %u", frm[1]);
539 vap->iv_stats.is_rx_elem_toobig++;
542 scan->erp = frm[2] | 0x100;
544 case IEEE80211_ELEMID_HTCAP:
547 case IEEE80211_ELEMID_RSN:
550 case IEEE80211_ELEMID_HTINFO:
553 case IEEE80211_ELEMID_VENDOR:
556 else if (iswmeparam(frm) || iswmeinfo(frm))
558 #ifdef IEEE80211_SUPPORT_SUPERG
559 else if (isatherosoui(frm))
562 #ifdef IEEE80211_SUPPORT_TDMA
563 else if (istdmaoui(frm))
566 else if (vap->iv_flags_ext & IEEE80211_FEXT_HTCOMPAT) {
568 * Accept pre-draft HT ie's if the
569 * standard ones have not been seen.
571 if (ishtcapoui(frm)) {
572 if (scan->htcap == NULL)
574 } else if (ishtinfooui(frm)) {
575 if (scan->htinfo == NULL)
581 IEEE80211_DISCARD_IE(vap, IEEE80211_MSG_ELEMID,
583 "id %u, len %u", *frm, frm[1]);
584 vap->iv_stats.is_rx_elem_unknown++;
589 IEEE80211_VERIFY_ELEMENT(scan->rates, IEEE80211_RATE_MAXSIZE,
590 scan->status |= IEEE80211_BPARSE_RATES_INVALID);
591 if (scan->rates != NULL && scan->xrates != NULL) {
593 * NB: don't process XRATES if RATES is missing. This
594 * avoids a potential null ptr deref and should be ok
595 * as the return code will already note RATES is missing
596 * (so callers shouldn't otherwise process the frame).
598 IEEE80211_VERIFY_ELEMENT(scan->xrates,
599 IEEE80211_RATE_MAXSIZE - scan->rates[1],
600 scan->status |= IEEE80211_BPARSE_XRATES_INVALID);
602 IEEE80211_VERIFY_ELEMENT(scan->ssid, IEEE80211_NWID_LEN,
603 scan->status |= IEEE80211_BPARSE_SSID_INVALID);
604 if (scan->chan != scan->bchan && ic->ic_phytype != IEEE80211_T_FH) {
606 * Frame was received on a channel different from the
607 * one indicated in the DS params element id;
608 * silently discard it.
610 * NB: this can happen due to signal leakage.
611 * But we should take it for FH phy because
612 * the rssi value should be correct even for
613 * different hop pattern in FH.
615 IEEE80211_DISCARD(vap,
616 IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT,
617 wh, NULL, "for off-channel %u", scan->chan);
618 vap->iv_stats.is_rx_chanmismatch++;
619 scan->status |= IEEE80211_BPARSE_OFFCHAN;
621 if (!(IEEE80211_BINTVAL_MIN <= scan->bintval &&
622 scan->bintval <= IEEE80211_BINTVAL_MAX)) {
623 IEEE80211_DISCARD(vap,
624 IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT,
625 wh, NULL, "bogus beacon interval", scan->bintval);
626 vap->iv_stats.is_rx_badbintval++;
627 scan->status |= IEEE80211_BPARSE_BINTVAL_INVALID;
629 if (scan->country != NULL) {
631 * Validate we have at least enough data to extract
632 * the country code. Not sure if we should return an
633 * error instead of discarding the IE; consider this
634 * being lenient as we don't depend on the data for
637 IEEE80211_VERIFY_LENGTH(scan->country[1], 3 * sizeof(uint8_t),
638 scan->country = NULL);
641 * Process HT ie's. This is complicated by our
642 * accepting both the standard ie's and the pre-draft
643 * vendor OUI ie's that some vendors still use/require.
645 if (scan->htcap != NULL) {
646 IEEE80211_VERIFY_LENGTH(scan->htcap[1],
647 scan->htcap[0] == IEEE80211_ELEMID_VENDOR ?
648 4 + sizeof(struct ieee80211_ie_htcap)-2 :
649 sizeof(struct ieee80211_ie_htcap)-2,
652 if (scan->htinfo != NULL) {
653 IEEE80211_VERIFY_LENGTH(scan->htinfo[1],
654 scan->htinfo[0] == IEEE80211_ELEMID_VENDOR ?
655 4 + sizeof(struct ieee80211_ie_htinfo)-2 :
656 sizeof(struct ieee80211_ie_htinfo)-2,
657 scan->htinfo = NULL);
663 * Parse an Action frame. Return 0 on success, non-zero on failure.
666 ieee80211_parse_action(struct ieee80211_node *ni, struct mbuf *m)
668 struct ieee80211vap *vap = ni->ni_vap;
669 const struct ieee80211_action *ia;
670 struct ieee80211_frame *wh;
674 * action frame format:
679 wh = mtod(m, struct ieee80211_frame *);
680 frm = (u_int8_t *)&wh[1];
681 efrm = mtod(m, u_int8_t *) + m->m_len;
682 IEEE80211_VERIFY_LENGTH(efrm - frm,
683 sizeof(struct ieee80211_action), return EINVAL);
684 ia = (const struct ieee80211_action *) frm;
686 vap->iv_stats.is_rx_action++;
687 IEEE80211_NODE_STAT(ni, rx_action);
689 /* verify frame payloads but defer processing */
690 /* XXX maybe push this to method */
691 switch (ia->ia_category) {
692 case IEEE80211_ACTION_CAT_BA:
693 switch (ia->ia_action) {
694 case IEEE80211_ACTION_BA_ADDBA_REQUEST:
695 IEEE80211_VERIFY_LENGTH(efrm - frm,
696 sizeof(struct ieee80211_action_ba_addbarequest),
699 case IEEE80211_ACTION_BA_ADDBA_RESPONSE:
700 IEEE80211_VERIFY_LENGTH(efrm - frm,
701 sizeof(struct ieee80211_action_ba_addbaresponse),
704 case IEEE80211_ACTION_BA_DELBA:
705 IEEE80211_VERIFY_LENGTH(efrm - frm,
706 sizeof(struct ieee80211_action_ba_delba),
711 case IEEE80211_ACTION_CAT_HT:
712 switch (ia->ia_action) {
713 case IEEE80211_ACTION_HT_TXCHWIDTH:
714 IEEE80211_VERIFY_LENGTH(efrm - frm,
715 sizeof(struct ieee80211_action_ht_txchwidth),
718 case IEEE80211_ACTION_HT_MIMOPWRSAVE:
719 IEEE80211_VERIFY_LENGTH(efrm - frm,
720 sizeof(struct ieee80211_action_ht_mimopowersave),
729 #ifdef IEEE80211_DEBUG
734 ieee80211_ssid_mismatch(struct ieee80211vap *vap, const char *tag,
735 uint8_t mac[IEEE80211_ADDR_LEN], uint8_t *ssid)
737 printf("[%s] discard %s frame, ssid mismatch: ",
738 ether_sprintf(mac), tag);
739 ieee80211_print_essid(ssid + 2, ssid[1]);
744 * Return the bssid of a frame.
746 static const uint8_t *
747 ieee80211_getbssid(struct ieee80211vap *vap, const struct ieee80211_frame *wh)
749 if (vap->iv_opmode == IEEE80211_M_STA)
751 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != IEEE80211_FC1_DIR_NODS)
753 if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PS_POLL)
758 #include <machine/stdarg.h>
761 ieee80211_note(struct ieee80211vap *vap, const char *fmt, ...)
763 char buf[128]; /* XXX */
767 vsnprintf(buf, sizeof(buf), fmt, ap);
770 if_printf(vap->iv_ifp, "%s", buf); /* NB: no \n */
774 ieee80211_note_frame(struct ieee80211vap *vap,
775 const struct ieee80211_frame *wh,
776 const char *fmt, ...)
778 char buf[128]; /* XXX */
782 vsnprintf(buf, sizeof(buf), fmt, ap);
784 if_printf(vap->iv_ifp, "[%s] %s\n",
785 ether_sprintf(ieee80211_getbssid(vap, wh)), buf);
789 ieee80211_note_mac(struct ieee80211vap *vap,
790 const uint8_t mac[IEEE80211_ADDR_LEN],
791 const char *fmt, ...)
793 char buf[128]; /* XXX */
797 vsnprintf(buf, sizeof(buf), fmt, ap);
799 if_printf(vap->iv_ifp, "[%s] %s\n", ether_sprintf(mac), buf);
803 ieee80211_discard_frame(struct ieee80211vap *vap,
804 const struct ieee80211_frame *wh,
805 const char *type, const char *fmt, ...)
809 if_printf(vap->iv_ifp, "[%s] discard ",
810 ether_sprintf(ieee80211_getbssid(vap, wh)));
812 printf("%s frame, ", ieee80211_mgt_subtype_name[
813 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) >>
814 IEEE80211_FC0_SUBTYPE_SHIFT]);
816 printf("%s frame, ", type);
824 ieee80211_discard_ie(struct ieee80211vap *vap,
825 const struct ieee80211_frame *wh,
826 const char *type, const char *fmt, ...)
830 if_printf(vap->iv_ifp, "[%s] discard ",
831 ether_sprintf(ieee80211_getbssid(vap, wh)));
833 printf("%s information element, ", type);
835 printf("information element, ");
843 ieee80211_discard_mac(struct ieee80211vap *vap,
844 const uint8_t mac[IEEE80211_ADDR_LEN],
845 const char *type, const char *fmt, ...)
849 if_printf(vap->iv_ifp, "[%s] discard ", ether_sprintf(mac));
851 printf("%s frame, ", type);
859 #endif /* IEEE80211_DEBUG */