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.
26 * $FreeBSD: head/sys/net80211/ieee80211_input.c 205986 2010-03-31 16:07:36Z rpaulo $
31 #include <sys/param.h>
32 #include <sys/systm.h>
34 #include <sys/malloc.h>
35 #include <sys/endian.h>
36 #include <sys/kernel.h>
38 #include <sys/socket.h>
40 #include <net/ethernet.h>
42 #include <net/if_llc.h>
43 #include <net/if_media.h>
44 #include <net/route.h>
46 #include <netproto/802_11/ieee80211_var.h>
47 #include <netproto/802_11/ieee80211_input.h>
48 #ifdef IEEE80211_SUPPORT_MESH
49 #include <netproto/802_11/ieee80211_mesh.h>
55 #include <netinet/in.h>
59 ieee80211_input_all(struct ieee80211com *ic, struct mbuf *m, int rssi, int nf)
61 struct ieee80211vap *vap;
64 m->m_flags |= M_BCAST; /* NB: mark for bpf tap'ing */
67 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
68 struct ieee80211_node *ni;
71 /* NB: could check for IFF_UP but this is cheaper */
72 if (vap->iv_state == IEEE80211_S_INIT)
75 * WDS vap's only receive directed traffic from the
76 * station at the ``far end''. That traffic should
77 * be passed through the AP vap the station is associated
78 * to--so don't spam them with mcast frames.
80 if (vap->iv_opmode == IEEE80211_M_WDS)
82 if (TAILQ_NEXT(vap, iv_next) != NULL) {
84 * Packet contents are changed by ieee80211_decap
85 * so do a deep copy of the packet.
87 mcopy = m_dup(m, MB_DONTWAIT);
96 ni = ieee80211_ref_node(vap->iv_bss);
97 type = ieee80211_input(ni, mcopy, rssi, nf);
98 ieee80211_free_node(ni);
100 if (m != NULL) /* no vaps, reclaim mbuf */
106 * This function reassembles fragments.
108 * XXX should handle 3 concurrent reassemblies per-spec.
111 ieee80211_defrag(struct ieee80211_node *ni, struct mbuf *m, int hdrspace)
113 struct ieee80211vap *vap = ni->ni_vap;
114 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
115 struct ieee80211_frame *lwh;
118 uint8_t more_frag = wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG;
121 KASSERT(!IEEE80211_IS_MULTICAST(wh->i_addr1), ("multicast fragm?"));
123 rxseq = le16toh(*(uint16_t *)wh->i_seq);
124 fragno = rxseq & IEEE80211_SEQ_FRAG_MASK;
126 /* Quick way out, if there's nothing to defragment */
127 if (!more_frag && fragno == 0 && ni->ni_rxfrag[0] == NULL)
131 * Remove frag to insure it doesn't get reaped by timer.
133 if (ni->ni_table == NULL) {
135 * Should never happen. If the node is orphaned (not in
136 * the table) then input packets should not reach here.
137 * Otherwise, a concurrent request that yanks the table
138 * should be blocked by other interlocking and/or by first
139 * shutting the driver down. Regardless, be defensive
142 /* XXX need msg+stat */
146 mfrag = ni->ni_rxfrag[0];
147 ni->ni_rxfrag[0] = NULL;
150 * Validate new fragment is in order and
151 * related to the previous ones.
156 lwh = mtod(mfrag, struct ieee80211_frame *);
157 last_rxseq = le16toh(*(uint16_t *)lwh->i_seq);
158 /* NB: check seq # and frag together */
159 if (rxseq != last_rxseq+1 ||
160 !IEEE80211_ADDR_EQ(wh->i_addr1, lwh->i_addr1) ||
161 !IEEE80211_ADDR_EQ(wh->i_addr2, lwh->i_addr2)) {
163 * Unrelated fragment or no space for it,
164 * clear current fragments.
172 if (fragno != 0) { /* !first fragment, discard */
173 vap->iv_stats.is_rx_defrag++;
174 IEEE80211_NODE_STAT(ni, rx_defrag);
179 } else { /* concatenate */
180 m_adj(m, hdrspace); /* strip header */
182 /* NB: m_cat doesn't update the packet header */
183 mfrag->m_pkthdr.len += m->m_pkthdr.len;
184 /* track last seqnum and fragno */
185 lwh = mtod(mfrag, struct ieee80211_frame *);
186 *(uint16_t *) lwh->i_seq = *(uint16_t *) wh->i_seq;
188 if (more_frag) { /* more to come, save */
189 ni->ni_rxfragstamp = ticks;
190 ni->ni_rxfrag[0] = mfrag;
197 ieee80211_deliver_data(struct ieee80211vap *vap,
198 struct ieee80211_node *ni, struct mbuf *m)
200 struct ether_header *eh = mtod(m, struct ether_header *);
201 struct ifnet *ifp = vap->iv_ifp;
203 /* clear driver/net80211 flags before passing up */
204 m->m_flags &= ~(M_80211_RX | M_MCAST | M_BCAST);
206 /* NB: see hostap_deliver_data, this path doesn't handle hostap */
207 KASSERT(vap->iv_opmode != IEEE80211_M_HOSTAP, ("gack, hostap"));
211 IFNET_STAT_INC(ifp, ipackets, 1);
212 IEEE80211_NODE_STAT(ni, rx_data);
213 IEEE80211_NODE_STAT_ADD(ni, rx_bytes, m->m_pkthdr.len);
214 if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
215 m->m_flags |= M_MCAST; /* XXX M_BCAST? */
216 IEEE80211_NODE_STAT(ni, rx_mcast);
218 IEEE80211_NODE_STAT(ni, rx_ucast);
219 m->m_pkthdr.rcvif = ifp;
221 if (ni->ni_vlan != 0) {
222 /* attach vlan tag */
223 m->m_pkthdr.ether_vlantag = ni->ni_vlan;
224 m->m_flags |= M_VLANTAG;
226 ifp->if_input(ifp, m);
230 ieee80211_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen)
232 struct ieee80211_qosframe_addr4 wh;
233 struct ether_header *eh;
236 KASSERT(hdrlen <= sizeof(wh),
237 ("hdrlen %d > max %zd", hdrlen, sizeof(wh)));
239 if (m->m_len < hdrlen + sizeof(*llc) &&
240 (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) {
241 vap->iv_stats.is_rx_tooshort++;
245 memcpy(&wh, mtod(m, caddr_t), hdrlen);
246 llc = (struct llc *)(mtod(m, caddr_t) + hdrlen);
247 if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP &&
248 llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 &&
249 llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 &&
250 !(llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) {
251 m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh));
254 m_adj(m, hdrlen - sizeof(*eh));
256 eh = mtod(m, struct ether_header *);
257 switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) {
258 case IEEE80211_FC1_DIR_NODS:
259 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1);
260 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2);
262 case IEEE80211_FC1_DIR_TODS:
263 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3);
264 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2);
266 case IEEE80211_FC1_DIR_FROMDS:
267 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1);
268 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr3);
270 case IEEE80211_FC1_DIR_DSTODS:
271 IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3);
272 IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr4);
275 #ifdef ALIGNED_POINTER
276 if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) {
277 m = ieee80211_realign(vap, m, sizeof(*eh));
281 #endif /* ALIGNED_POINTER */
283 eh = mtod(m, struct ether_header *);
284 eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh));
290 * Decap a frame encapsulated in a fast-frame/A-MSDU.
293 ieee80211_decap1(struct mbuf *m, int *framelen)
295 #define FF_LLC_SIZE (sizeof(struct ether_header) + sizeof(struct llc))
296 struct ether_header *eh;
300 * The frame has an 802.3 header followed by an 802.2
301 * LLC header. The encapsulated frame length is in the
302 * first header type field; save that and overwrite it
303 * with the true type field found in the second. Then
304 * copy the 802.3 header up to where it belongs and
305 * adjust the mbuf contents to remove the void.
307 if (m->m_len < FF_LLC_SIZE && (m = m_pullup(m, FF_LLC_SIZE)) == NULL)
309 eh = mtod(m, struct ether_header *); /* 802.3 header is first */
310 llc = (struct llc *)&eh[1]; /* 802.2 header follows */
311 *framelen = ntohs(eh->ether_type) /* encap'd frame size */
312 + sizeof(struct ether_header) - sizeof(struct llc);
313 eh->ether_type = llc->llc_un.type_snap.ether_type;
314 ovbcopy(eh, mtod(m, uint8_t *) + sizeof(struct llc),
315 sizeof(struct ether_header));
316 m_adj(m, sizeof(struct llc));
322 * Install received rate set information in the node's state block.
325 ieee80211_setup_rates(struct ieee80211_node *ni,
326 const uint8_t *rates, const uint8_t *xrates, int flags)
328 struct ieee80211vap *vap = ni->ni_vap;
329 struct ieee80211_rateset *rs = &ni->ni_rates;
331 memset(rs, 0, sizeof(*rs));
332 rs->rs_nrates = rates[1];
333 memcpy(rs->rs_rates, rates + 2, rs->rs_nrates);
334 if (xrates != NULL) {
337 * Tack on 11g extended supported rate element.
340 if (rs->rs_nrates + nxrates > IEEE80211_RATE_MAXSIZE) {
341 nxrates = IEEE80211_RATE_MAXSIZE - rs->rs_nrates;
342 IEEE80211_NOTE(vap, IEEE80211_MSG_XRATE, ni,
343 "extended rate set too large; only using "
344 "%u of %u rates", nxrates, xrates[1]);
345 vap->iv_stats.is_rx_rstoobig++;
347 memcpy(rs->rs_rates + rs->rs_nrates, xrates+2, nxrates);
348 rs->rs_nrates += nxrates;
350 return ieee80211_fix_rate(ni, rs, flags);
354 * Send a management frame error response to the specified
355 * station. If ni is associated with the station then use
356 * it; otherwise allocate a temporary node suitable for
357 * transmitting the frame and then free the reference so
358 * it will go away as soon as the frame has been transmitted.
361 ieee80211_send_error(struct ieee80211_node *ni,
362 const uint8_t mac[IEEE80211_ADDR_LEN], int subtype, int arg)
364 struct ieee80211vap *vap = ni->ni_vap;
367 if (ni == vap->iv_bss) {
368 if (vap->iv_state != IEEE80211_S_RUN) {
370 * XXX hack until we get rid of this routine.
371 * We can be called prior to the vap reaching
372 * run state under certain conditions in which
373 * case iv_bss->ni_chan will not be setup.
374 * Check for this explicitly and and just ignore
379 ni = ieee80211_tmp_node(vap, mac);
387 IEEE80211_SEND_MGMT(ni, subtype, arg);
389 ieee80211_free_node(ni);
393 ieee80211_alloc_challenge(struct ieee80211_node *ni)
395 if (ni->ni_challenge == NULL)
396 ni->ni_challenge = (uint32_t *) kmalloc(IEEE80211_CHALLENGE_LEN,
397 M_80211_NODE, M_INTWAIT);
398 if (ni->ni_challenge == NULL) {
399 IEEE80211_NOTE(ni->ni_vap,
400 IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH, ni,
401 "%s", "shared key challenge alloc failed");
404 return (ni->ni_challenge != NULL);
408 * Parse a Beacon or ProbeResponse frame and return the
409 * useful information in an ieee80211_scanparams structure.
410 * Status is set to 0 if no problems were found; otherwise
411 * a bitmask of IEEE80211_BPARSE_* items is returned that
412 * describes the problems detected.
415 ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
416 struct ieee80211_scanparams *scan)
418 struct ieee80211vap *vap = ni->ni_vap;
419 struct ieee80211com *ic = ni->ni_ic;
420 struct ieee80211_frame *wh;
423 wh = mtod(m, struct ieee80211_frame *);
424 frm = (uint8_t *)&wh[1];
425 efrm = mtod(m, uint8_t *) + m->m_len;
428 * beacon/probe response frame format
430 * [2] beacon interval
431 * [2] capability information
433 * [tlv] supported rates
434 * [tlv] country information
435 * [tlv] channel switch announcement (CSA)
436 * [tlv] parameter set (FH/DS)
437 * [tlv] erp information
438 * [tlv] extended supported rates
441 * [tlv] HT capabilities
442 * [tlv] HT information
443 * [tlv] Atheros capabilities
445 * [tlv] Mesh Configuration
447 IEEE80211_VERIFY_LENGTH(efrm - frm, 12,
448 return (scan->status = IEEE80211_BPARSE_BADIELEN));
449 memset(scan, 0, sizeof(*scan));
450 scan->tstamp = frm; frm += 8;
451 scan->bintval = le16toh(*(uint16_t *)frm); frm += 2;
452 scan->capinfo = le16toh(*(uint16_t *)frm); frm += 2;
453 scan->bchan = ieee80211_chan2ieee(ic, ic->ic_curchan);
454 scan->chan = scan->bchan;
456 scan->ies_len = efrm - frm;
458 while (efrm - frm > 1) {
459 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2,
460 return (scan->status = IEEE80211_BPARSE_BADIELEN));
462 case IEEE80211_ELEMID_SSID:
465 case IEEE80211_ELEMID_RATES:
468 case IEEE80211_ELEMID_COUNTRY:
471 case IEEE80211_ELEMID_CSA:
474 case IEEE80211_ELEMID_FHPARMS:
475 if (ic->ic_phytype == IEEE80211_T_FH) {
476 scan->fhdwell = LE_READ_2(&frm[2]);
477 scan->chan = IEEE80211_FH_CHAN(frm[4], frm[5]);
478 scan->fhindex = frm[6];
481 case IEEE80211_ELEMID_DSPARMS:
483 * XXX hack this since depending on phytype
484 * is problematic for multi-mode devices.
486 if (ic->ic_phytype != IEEE80211_T_FH)
489 case IEEE80211_ELEMID_TIM:
492 scan->timoff = frm - mtod(m, uint8_t *);
494 case IEEE80211_ELEMID_IBSSPARMS:
495 case IEEE80211_ELEMID_CFPARMS:
496 case IEEE80211_ELEMID_PWRCNSTR:
497 /* NB: avoid debugging complaints */
499 case IEEE80211_ELEMID_XRATES:
502 case IEEE80211_ELEMID_ERP:
504 IEEE80211_DISCARD_IE(vap,
505 IEEE80211_MSG_ELEMID, wh, "ERP",
506 "bad len %u", frm[1]);
507 vap->iv_stats.is_rx_elem_toobig++;
510 scan->erp = frm[2] | 0x100;
512 case IEEE80211_ELEMID_HTCAP:
515 case IEEE80211_ELEMID_RSN:
518 case IEEE80211_ELEMID_HTINFO:
521 #ifdef IEEE80211_SUPPORT_MESH
522 case IEEE80211_ELEMID_MESHID:
525 case IEEE80211_ELEMID_MESHCONF:
526 scan->meshconf = frm;
529 case IEEE80211_ELEMID_VENDOR:
532 else if (iswmeparam(frm) || iswmeinfo(frm))
534 #ifdef IEEE80211_SUPPORT_SUPERG
535 else if (isatherosoui(frm))
538 #ifdef IEEE80211_SUPPORT_TDMA
539 else if (istdmaoui(frm))
542 else if (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) {
544 * Accept pre-draft HT ie's if the
545 * standard ones have not been seen.
547 if (ishtcapoui(frm)) {
548 if (scan->htcap == NULL)
550 } else if (ishtinfooui(frm)) {
551 if (scan->htinfo == NULL)
557 IEEE80211_DISCARD_IE(vap, IEEE80211_MSG_ELEMID,
559 "id %u, len %u", *frm, frm[1]);
560 vap->iv_stats.is_rx_elem_unknown++;
565 IEEE80211_VERIFY_ELEMENT(scan->rates, IEEE80211_RATE_MAXSIZE,
566 scan->status |= IEEE80211_BPARSE_RATES_INVALID);
567 if (scan->rates != NULL && scan->xrates != NULL) {
569 * NB: don't process XRATES if RATES is missing. This
570 * avoids a potential null ptr deref and should be ok
571 * as the return code will already note RATES is missing
572 * (so callers shouldn't otherwise process the frame).
574 IEEE80211_VERIFY_ELEMENT(scan->xrates,
575 IEEE80211_RATE_MAXSIZE - scan->rates[1],
576 scan->status |= IEEE80211_BPARSE_XRATES_INVALID);
578 IEEE80211_VERIFY_ELEMENT(scan->ssid, IEEE80211_NWID_LEN,
579 scan->status |= IEEE80211_BPARSE_SSID_INVALID);
580 if (scan->chan != scan->bchan && ic->ic_phytype != IEEE80211_T_FH) {
582 * Frame was received on a channel different from the
583 * one indicated in the DS params element id;
584 * silently discard it.
586 * NB: this can happen due to signal leakage.
587 * But we should take it for FH phy because
588 * the rssi value should be correct even for
589 * different hop pattern in FH.
591 IEEE80211_DISCARD(vap,
592 IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT,
593 wh, NULL, "for off-channel %u", scan->chan);
594 vap->iv_stats.is_rx_chanmismatch++;
595 scan->status |= IEEE80211_BPARSE_OFFCHAN;
597 if (!(IEEE80211_BINTVAL_MIN <= scan->bintval &&
598 scan->bintval <= IEEE80211_BINTVAL_MAX)) {
599 IEEE80211_DISCARD(vap,
600 IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT,
601 wh, NULL, "bogus beacon interval %u", scan->bintval);
602 vap->iv_stats.is_rx_badbintval++;
603 scan->status |= IEEE80211_BPARSE_BINTVAL_INVALID;
605 if (scan->country != NULL) {
607 * Validate we have at least enough data to extract
608 * the country code. Not sure if we should return an
609 * error instead of discarding the IE; consider this
610 * being lenient as we don't depend on the data for
613 IEEE80211_VERIFY_LENGTH(scan->country[1], 3 * sizeof(uint8_t),
614 scan->country = NULL);
616 if (scan->csa != NULL) {
618 * Validate Channel Switch Announcement; this must
619 * be the correct length or we toss the frame.
621 IEEE80211_VERIFY_LENGTH(scan->csa[1], 3 * sizeof(uint8_t),
622 scan->status |= IEEE80211_BPARSE_CSA_INVALID);
625 * Process HT ie's. This is complicated by our
626 * accepting both the standard ie's and the pre-draft
627 * vendor OUI ie's that some vendors still use/require.
629 if (scan->htcap != NULL) {
630 IEEE80211_VERIFY_LENGTH(scan->htcap[1],
631 scan->htcap[0] == IEEE80211_ELEMID_VENDOR ?
632 4 + sizeof(struct ieee80211_ie_htcap)-2 :
633 sizeof(struct ieee80211_ie_htcap)-2,
636 if (scan->htinfo != NULL) {
637 IEEE80211_VERIFY_LENGTH(scan->htinfo[1],
638 scan->htinfo[0] == IEEE80211_ELEMID_VENDOR ?
639 4 + sizeof(struct ieee80211_ie_htinfo)-2 :
640 sizeof(struct ieee80211_ie_htinfo)-2,
641 scan->htinfo = NULL);
647 * Parse an Action frame. Return 0 on success, non-zero on failure.
650 ieee80211_parse_action(struct ieee80211_node *ni, struct mbuf *m)
652 struct ieee80211vap *vap = ni->ni_vap;
653 const struct ieee80211_action *ia;
654 struct ieee80211_frame *wh;
658 * action frame format:
663 wh = mtod(m, struct ieee80211_frame *);
664 frm = (u_int8_t *)&wh[1];
665 efrm = mtod(m, u_int8_t *) + m->m_len;
666 IEEE80211_VERIFY_LENGTH(efrm - frm,
667 sizeof(struct ieee80211_action), return EINVAL);
668 ia = (const struct ieee80211_action *) frm;
670 vap->iv_stats.is_rx_action++;
671 IEEE80211_NODE_STAT(ni, rx_action);
673 /* verify frame payloads but defer processing */
674 /* XXX maybe push this to method */
675 switch (ia->ia_category) {
676 case IEEE80211_ACTION_CAT_BA:
677 switch (ia->ia_action) {
678 case IEEE80211_ACTION_BA_ADDBA_REQUEST:
679 IEEE80211_VERIFY_LENGTH(efrm - frm,
680 sizeof(struct ieee80211_action_ba_addbarequest),
683 case IEEE80211_ACTION_BA_ADDBA_RESPONSE:
684 IEEE80211_VERIFY_LENGTH(efrm - frm,
685 sizeof(struct ieee80211_action_ba_addbaresponse),
688 case IEEE80211_ACTION_BA_DELBA:
689 IEEE80211_VERIFY_LENGTH(efrm - frm,
690 sizeof(struct ieee80211_action_ba_delba),
695 case IEEE80211_ACTION_CAT_HT:
696 switch (ia->ia_action) {
697 case IEEE80211_ACTION_HT_TXCHWIDTH:
698 IEEE80211_VERIFY_LENGTH(efrm - frm,
699 sizeof(struct ieee80211_action_ht_txchwidth),
702 case IEEE80211_ACTION_HT_MIMOPWRSAVE:
703 IEEE80211_VERIFY_LENGTH(efrm - frm,
704 sizeof(struct ieee80211_action_ht_mimopowersave),
714 * Modules may be compiled with debugging even if wlan isn't
716 /*#ifdef IEEE80211_DEBUG*/
722 ieee80211_ssid_mismatch(struct ieee80211vap *vap, const char *tag,
723 uint8_t mac[IEEE80211_ADDR_LEN], uint8_t *ssid)
725 char ethstr[ETHER_ADDRSTRLEN + 1];
727 kprintf("[%s] discard %s frame, ssid mismatch: ",
728 kether_ntoa(mac, ethstr), tag);
729 ieee80211_print_essid(ssid + 2, ssid[1]);
734 * Return the bssid of a frame.
736 static const uint8_t *
737 ieee80211_getbssid(const struct ieee80211vap *vap, const struct ieee80211_frame *wh)
739 if (vap->iv_opmode == IEEE80211_M_STA)
741 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != IEEE80211_FC1_DIR_NODS)
743 if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PS_POLL)
748 #include <machine/stdarg.h>
751 ieee80211_note(const struct ieee80211vap *vap, const char *fmt, ...)
753 char buf[128]; /* XXX */
757 kvsnprintf(buf, sizeof(buf), fmt, ap);
760 if_printf(vap->iv_ifp, "%s", buf); /* NB: no \n */
764 ieee80211_note_frame(const struct ieee80211vap *vap,
765 const struct ieee80211_frame *wh,
766 const char *fmt, ...)
768 char buf[128]; /* XXX */
770 char ethstr[ETHER_ADDRSTRLEN + 1];
773 kvsnprintf(buf, sizeof(buf), fmt, ap);
775 if_printf(vap->iv_ifp, "[%s] %s\n",
776 kether_ntoa(ieee80211_getbssid(vap, wh), ethstr), buf);
780 ieee80211_note_mac(const struct ieee80211vap *vap,
781 const uint8_t mac[IEEE80211_ADDR_LEN],
782 const char *fmt, ...)
784 char buf[128]; /* XXX */
786 char ethstr[ETHER_ADDRSTRLEN + 1];
789 kvsnprintf(buf, sizeof(buf), fmt, ap);
791 if_printf(vap->iv_ifp, "[%s] %s\n", kether_ntoa(mac, ethstr), buf);
795 ieee80211_discard_frame(const struct ieee80211vap *vap,
796 const struct ieee80211_frame *wh,
797 const char *type, const char *fmt, ...)
800 char ethstr[ETHER_ADDRSTRLEN + 1];
802 if_printf(vap->iv_ifp, "[%s] discard ",
803 kether_ntoa(ieee80211_getbssid(vap, wh), ethstr));
805 kprintf("%s frame, ", ieee80211_mgt_subtype_name[
806 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) >>
807 IEEE80211_FC0_SUBTYPE_SHIFT]);
809 kprintf("%s frame, ", type);
817 ieee80211_discard_ie(const struct ieee80211vap *vap,
818 const struct ieee80211_frame *wh,
819 const char *type, const char *fmt, ...)
822 char ethstr[ETHER_ADDRSTRLEN + 1];
824 if_printf(vap->iv_ifp, "[%s] discard ",
825 kether_ntoa(ieee80211_getbssid(vap, wh), ethstr));
827 kprintf("%s information element, ", type);
829 kprintf("information element, ");
837 ieee80211_discard_mac(const struct ieee80211vap *vap,
838 const uint8_t mac[IEEE80211_ADDR_LEN],
839 const char *type, const char *fmt, ...)
842 char ethstr[ETHER_ADDRSTRLEN + 1];
844 if_printf(vap->iv_ifp, "[%s] discard ", kether_ntoa(mac, ethstr));
846 kprintf("%s frame, ", type);
854 #endif /* IEEE80211_DEBUG */