2 * Copyright (c) 2009 The FreeBSD Foundation
5 * This software was developed by Rui Paulo under sponsorship from the
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
35 * IEEE 802.11s Mesh Point (MBSS) support.
37 * Based on March 2009, D3.0 802.11s draft spec.
42 #include <sys/param.h>
43 #include <sys/systm.h>
45 #include <sys/malloc.h>
46 #include <sys/kernel.h>
48 #include <sys/socket.h>
49 #include <sys/sockio.h>
50 #include <sys/endian.h>
51 #include <sys/errno.h>
53 #include <sys/sysctl.h>
56 #include <net/if_media.h>
57 #include <net/if_llc.h>
58 #include <net/ethernet.h>
60 #include <net80211/ieee80211_var.h>
61 #include <net80211/ieee80211_action.h>
62 #include <net80211/ieee80211_input.h>
63 #include <net80211/ieee80211_mesh.h>
65 static void mesh_rt_flush_invalid(struct ieee80211vap *);
66 static int mesh_select_proto_path(struct ieee80211vap *, const char *);
67 static int mesh_select_proto_metric(struct ieee80211vap *, const char *);
68 static void mesh_vattach(struct ieee80211vap *);
69 static int mesh_newstate(struct ieee80211vap *, enum ieee80211_state, int);
70 static void mesh_rt_cleanup_cb(void *);
71 static void mesh_linkchange(struct ieee80211_node *,
72 enum ieee80211_mesh_mlstate);
73 static void mesh_checkid(void *, struct ieee80211_node *);
74 static uint32_t mesh_generateid(struct ieee80211vap *);
75 static int mesh_checkpseq(struct ieee80211vap *,
76 const uint8_t [IEEE80211_ADDR_LEN], uint32_t);
77 static struct ieee80211_node *
78 mesh_find_txnode(struct ieee80211vap *,
79 const uint8_t [IEEE80211_ADDR_LEN]);
80 static void mesh_forward(struct ieee80211vap *, struct mbuf *,
81 const struct ieee80211_meshcntl *);
82 static int mesh_input(struct ieee80211_node *, struct mbuf *, int, int);
83 static void mesh_recv_mgmt(struct ieee80211_node *, struct mbuf *, int,
85 static void mesh_peer_timeout_setup(struct ieee80211_node *);
86 static void mesh_peer_timeout_backoff(struct ieee80211_node *);
87 static void mesh_peer_timeout_cb(void *);
89 mesh_peer_timeout_stop(struct ieee80211_node *);
90 static int mesh_verify_meshid(struct ieee80211vap *, const uint8_t *);
91 static int mesh_verify_meshconf(struct ieee80211vap *, const uint8_t *);
92 static int mesh_verify_meshpeer(struct ieee80211vap *, uint8_t,
94 uint32_t mesh_airtime_calc(struct ieee80211_node *);
97 * Timeout values come from the specification and are in milliseconds.
99 SYSCTL_NODE(_net_wlan, OID_AUTO, mesh, CTLFLAG_RD, 0,
100 "IEEE 802.11s parameters");
101 static int ieee80211_mesh_retrytimeout = -1;
102 SYSCTL_PROC(_net_wlan_mesh, OID_AUTO, retrytimeout, CTLTYPE_INT | CTLFLAG_RW,
103 &ieee80211_mesh_retrytimeout, 0, ieee80211_sysctl_msecs_ticks, "I",
104 "Retry timeout (msec)");
105 static int ieee80211_mesh_holdingtimeout = -1;
106 SYSCTL_PROC(_net_wlan_mesh, OID_AUTO, holdingtimeout, CTLTYPE_INT | CTLFLAG_RW,
107 &ieee80211_mesh_holdingtimeout, 0, ieee80211_sysctl_msecs_ticks, "I",
108 "Holding state timeout (msec)");
109 static int ieee80211_mesh_confirmtimeout = -1;
110 SYSCTL_PROC(_net_wlan_mesh, OID_AUTO, confirmtimeout, CTLTYPE_INT | CTLFLAG_RW,
111 &ieee80211_mesh_confirmtimeout, 0, ieee80211_sysctl_msecs_ticks, "I",
112 "Confirm state timeout (msec)");
113 static int ieee80211_mesh_maxretries = 2;
114 SYSCTL_INT(_net_wlan_mesh, OID_AUTO, maxretries, CTLTYPE_INT | CTLFLAG_RW,
115 &ieee80211_mesh_maxretries, 0,
116 "Maximum retries during peer link establishment");
118 static const uint8_t broadcastaddr[IEEE80211_ADDR_LEN] =
119 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
121 static ieee80211_recv_action_func mesh_recv_action_meshpeering_open;
122 static ieee80211_recv_action_func mesh_recv_action_meshpeering_confirm;
123 static ieee80211_recv_action_func mesh_recv_action_meshpeering_close;
124 static ieee80211_recv_action_func mesh_recv_action_meshlmetric_req;
125 static ieee80211_recv_action_func mesh_recv_action_meshlmetric_rep;
127 static ieee80211_send_action_func mesh_send_action_meshpeering_open;
128 static ieee80211_send_action_func mesh_send_action_meshpeering_confirm;
129 static ieee80211_send_action_func mesh_send_action_meshpeering_close;
130 static ieee80211_send_action_func mesh_send_action_meshlink_request;
131 static ieee80211_send_action_func mesh_send_action_meshlink_reply;
133 static const struct ieee80211_mesh_proto_metric mesh_metric_airtime = {
134 .mpm_descr = "AIRTIME",
135 .mpm_ie = IEEE80211_MESHCONF_METRIC_AIRTIME,
136 .mpm_metric = mesh_airtime_calc,
139 static struct ieee80211_mesh_proto_path mesh_proto_paths[4];
140 static struct ieee80211_mesh_proto_metric mesh_proto_metrics[4];
142 #define MESH_RT_LOCK(ms) mtx_lock(&(ms)->ms_rt_lock)
143 #define MESH_RT_LOCK_ASSERT(ms) mtx_assert(&(ms)->ms_rt_lock, MA_OWNED)
144 #define MESH_RT_UNLOCK(ms) mtx_unlock(&(ms)->ms_rt_lock)
146 MALLOC_DEFINE(M_80211_MESH_RT, "80211mesh", "802.11s routing table");
149 * Helper functions to manipulate the Mesh routing table.
152 static struct ieee80211_mesh_route *
153 mesh_rt_find_locked(struct ieee80211_mesh_state *ms,
154 const uint8_t dest[IEEE80211_ADDR_LEN])
156 struct ieee80211_mesh_route *rt;
158 MESH_RT_LOCK_ASSERT(ms);
160 TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) {
161 if (IEEE80211_ADDR_EQ(dest, rt->rt_dest))
167 static struct ieee80211_mesh_route *
168 mesh_rt_add_locked(struct ieee80211_mesh_state *ms,
169 const uint8_t dest[IEEE80211_ADDR_LEN])
171 struct ieee80211_mesh_route *rt;
173 KASSERT(!IEEE80211_ADDR_EQ(broadcastaddr, dest),
174 ("%s: adding broadcast to the routing table", __func__));
176 MESH_RT_LOCK_ASSERT(ms);
178 rt = malloc(ALIGN(sizeof(struct ieee80211_mesh_route)) +
179 ms->ms_ppath->mpp_privlen, M_80211_MESH_RT, M_NOWAIT | M_ZERO);
181 IEEE80211_ADDR_COPY(rt->rt_dest, dest);
182 rt->rt_priv = (void *)ALIGN(&rt[1]);
183 rt->rt_crtime = ticks;
184 TAILQ_INSERT_TAIL(&ms->ms_routes, rt, rt_next);
189 struct ieee80211_mesh_route *
190 ieee80211_mesh_rt_find(struct ieee80211vap *vap,
191 const uint8_t dest[IEEE80211_ADDR_LEN])
193 struct ieee80211_mesh_state *ms = vap->iv_mesh;
194 struct ieee80211_mesh_route *rt;
197 rt = mesh_rt_find_locked(ms, dest);
202 struct ieee80211_mesh_route *
203 ieee80211_mesh_rt_add(struct ieee80211vap *vap,
204 const uint8_t dest[IEEE80211_ADDR_LEN])
206 struct ieee80211_mesh_state *ms = vap->iv_mesh;
207 struct ieee80211_mesh_route *rt;
209 KASSERT(ieee80211_mesh_rt_find(vap, dest) == NULL,
210 ("%s: duplicate entry in the routing table", __func__));
211 KASSERT(!IEEE80211_ADDR_EQ(vap->iv_myaddr, dest),
212 ("%s: adding self to the routing table", __func__));
215 rt = mesh_rt_add_locked(ms, dest);
221 * Add a proxy route (as needed) for the specified destination.
224 ieee80211_mesh_proxy_check(struct ieee80211vap *vap,
225 const uint8_t dest[IEEE80211_ADDR_LEN])
227 struct ieee80211_mesh_state *ms = vap->iv_mesh;
228 struct ieee80211_mesh_route *rt;
231 rt = mesh_rt_find_locked(ms, dest);
233 rt = mesh_rt_add_locked(ms, dest);
235 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest,
236 "%s", "unable to add proxy entry");
237 vap->iv_stats.is_mesh_rtaddfailed++;
239 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest,
240 "%s", "add proxy entry");
241 IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr);
242 rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID
243 | IEEE80211_MESHRT_FLAGS_PROXY;
245 /* XXX assert PROXY? */
246 } else if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) {
247 struct ieee80211com *ic = vap->iv_ic;
249 * Fix existing entry created by received frames from
250 * stations that have some memory of dest. We also
251 * flush any frames held on the staging queue; delivering
252 * them is too much trouble right now.
254 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest,
255 "%s", "fix proxy entry");
256 IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr);
257 rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID
258 | IEEE80211_MESHRT_FLAGS_PROXY;
259 /* XXX belongs in hwmp */
260 ieee80211_ageq_drain_node(&ic->ic_stageq,
261 (void *)(uintptr_t) ieee80211_mac_hash(ic, dest));
268 mesh_rt_del(struct ieee80211_mesh_state *ms, struct ieee80211_mesh_route *rt)
270 TAILQ_REMOVE(&ms->ms_routes, rt, rt_next);
271 free(rt, M_80211_MESH_RT);
275 ieee80211_mesh_rt_del(struct ieee80211vap *vap,
276 const uint8_t dest[IEEE80211_ADDR_LEN])
278 struct ieee80211_mesh_state *ms = vap->iv_mesh;
279 struct ieee80211_mesh_route *rt, *next;
282 TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) {
283 if (IEEE80211_ADDR_EQ(rt->rt_dest, dest)) {
293 ieee80211_mesh_rt_flush(struct ieee80211vap *vap)
295 struct ieee80211_mesh_state *ms = vap->iv_mesh;
296 struct ieee80211_mesh_route *rt, *next;
301 TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next)
307 ieee80211_mesh_rt_flush_peer(struct ieee80211vap *vap,
308 const uint8_t peer[IEEE80211_ADDR_LEN])
310 struct ieee80211_mesh_state *ms = vap->iv_mesh;
311 struct ieee80211_mesh_route *rt, *next;
314 TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) {
315 if (IEEE80211_ADDR_EQ(rt->rt_nexthop, peer))
322 * Flush expired routing entries, i.e. those in invalid state for
326 mesh_rt_flush_invalid(struct ieee80211vap *vap)
328 struct ieee80211_mesh_state *ms = vap->iv_mesh;
329 struct ieee80211_mesh_route *rt, *next;
334 TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) {
335 if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0 &&
336 ticks - rt->rt_crtime >= ms->ms_ppath->mpp_inact)
342 #define N(a) (sizeof(a) / sizeof(a[0]))
344 ieee80211_mesh_register_proto_path(const struct ieee80211_mesh_proto_path *mpp)
346 int i, firstempty = -1;
348 for (i = 0; i < N(mesh_proto_paths); i++) {
349 if (strncmp(mpp->mpp_descr, mesh_proto_paths[i].mpp_descr,
350 IEEE80211_MESH_PROTO_DSZ) == 0)
352 if (!mesh_proto_paths[i].mpp_active && firstempty == -1)
357 memcpy(&mesh_proto_paths[firstempty], mpp, sizeof(*mpp));
358 mesh_proto_paths[firstempty].mpp_active = 1;
363 ieee80211_mesh_register_proto_metric(const struct
364 ieee80211_mesh_proto_metric *mpm)
366 int i, firstempty = -1;
368 for (i = 0; i < N(mesh_proto_metrics); i++) {
369 if (strncmp(mpm->mpm_descr, mesh_proto_metrics[i].mpm_descr,
370 IEEE80211_MESH_PROTO_DSZ) == 0)
372 if (!mesh_proto_metrics[i].mpm_active && firstempty == -1)
377 memcpy(&mesh_proto_metrics[firstempty], mpm, sizeof(*mpm));
378 mesh_proto_metrics[firstempty].mpm_active = 1;
383 mesh_select_proto_path(struct ieee80211vap *vap, const char *name)
385 struct ieee80211_mesh_state *ms = vap->iv_mesh;
388 for (i = 0; i < N(mesh_proto_paths); i++) {
389 if (strcasecmp(mesh_proto_paths[i].mpp_descr, name) == 0) {
390 ms->ms_ppath = &mesh_proto_paths[i];
398 mesh_select_proto_metric(struct ieee80211vap *vap, const char *name)
400 struct ieee80211_mesh_state *ms = vap->iv_mesh;
403 for (i = 0; i < N(mesh_proto_metrics); i++) {
404 if (strcasecmp(mesh_proto_metrics[i].mpm_descr, name) == 0) {
405 ms->ms_pmetric = &mesh_proto_metrics[i];
414 ieee80211_mesh_init(void)
417 memset(mesh_proto_paths, 0, sizeof(mesh_proto_paths));
418 memset(mesh_proto_metrics, 0, sizeof(mesh_proto_metrics));
421 * Setup mesh parameters that depends on the clock frequency.
423 ieee80211_mesh_retrytimeout = msecs_to_ticks(40);
424 ieee80211_mesh_holdingtimeout = msecs_to_ticks(40);
425 ieee80211_mesh_confirmtimeout = msecs_to_ticks(40);
428 * Register action frame handlers.
430 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
431 IEEE80211_ACTION_MESHPEERING_OPEN,
432 mesh_recv_action_meshpeering_open);
433 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
434 IEEE80211_ACTION_MESHPEERING_CONFIRM,
435 mesh_recv_action_meshpeering_confirm);
436 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
437 IEEE80211_ACTION_MESHPEERING_CLOSE,
438 mesh_recv_action_meshpeering_close);
439 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESHLMETRIC,
440 IEEE80211_ACTION_MESHLMETRIC_REQ, mesh_recv_action_meshlmetric_req);
441 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESHLMETRIC,
442 IEEE80211_ACTION_MESHLMETRIC_REP, mesh_recv_action_meshlmetric_rep);
444 ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
445 IEEE80211_ACTION_MESHPEERING_OPEN,
446 mesh_send_action_meshpeering_open);
447 ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
448 IEEE80211_ACTION_MESHPEERING_CONFIRM,
449 mesh_send_action_meshpeering_confirm);
450 ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESHPEERING,
451 IEEE80211_ACTION_MESHPEERING_CLOSE,
452 mesh_send_action_meshpeering_close);
453 ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESHLMETRIC,
454 IEEE80211_ACTION_MESHLMETRIC_REQ,
455 mesh_send_action_meshlink_request);
456 ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESHLMETRIC,
457 IEEE80211_ACTION_MESHLMETRIC_REP,
458 mesh_send_action_meshlink_reply);
461 * Register Airtime Link Metric.
463 ieee80211_mesh_register_proto_metric(&mesh_metric_airtime);
466 SYSINIT(wlan_mesh, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_mesh_init, NULL);
469 ieee80211_mesh_attach(struct ieee80211com *ic)
471 ic->ic_vattach[IEEE80211_M_MBSS] = mesh_vattach;
475 ieee80211_mesh_detach(struct ieee80211com *ic)
480 mesh_vdetach_peers(void *arg, struct ieee80211_node *ni)
482 struct ieee80211com *ic = ni->ni_ic;
485 if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED) {
486 args[0] = ni->ni_mlpid;
487 args[1] = ni->ni_mllid;
488 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
489 ieee80211_send_action(ni,
490 IEEE80211_ACTION_CAT_MESHPEERING,
491 IEEE80211_ACTION_MESHPEERING_CLOSE,
494 callout_drain(&ni->ni_mltimer);
495 /* XXX belongs in hwmp */
496 ieee80211_ageq_drain_node(&ic->ic_stageq,
497 (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr));
501 mesh_vdetach(struct ieee80211vap *vap)
503 struct ieee80211_mesh_state *ms = vap->iv_mesh;
505 callout_drain(&ms->ms_cleantimer);
506 ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_vdetach_peers,
508 ieee80211_mesh_rt_flush(vap);
509 mtx_destroy(&ms->ms_rt_lock);
510 ms->ms_ppath->mpp_vdetach(vap);
511 free(vap->iv_mesh, M_80211_VAP);
516 mesh_vattach(struct ieee80211vap *vap)
518 struct ieee80211_mesh_state *ms;
519 vap->iv_newstate = mesh_newstate;
520 vap->iv_input = mesh_input;
521 vap->iv_opdetach = mesh_vdetach;
522 vap->iv_recv_mgmt = mesh_recv_mgmt;
523 ms = malloc(sizeof(struct ieee80211_mesh_state), M_80211_VAP,
526 printf("%s: couldn't alloc MBSS state\n", __func__);
531 ms->ms_flags = (IEEE80211_MESHFLAGS_AP | IEEE80211_MESHFLAGS_FWD);
532 ms->ms_ttl = IEEE80211_MESH_DEFAULT_TTL;
533 TAILQ_INIT(&ms->ms_routes);
534 mtx_init(&ms->ms_rt_lock, "MBSS", "802.11s routing table", MTX_DEF);
535 callout_init(&ms->ms_cleantimer, CALLOUT_MPSAFE);
536 mesh_select_proto_metric(vap, "AIRTIME");
537 KASSERT(ms->ms_pmetric, ("ms_pmetric == NULL"));
538 mesh_select_proto_path(vap, "HWMP");
539 KASSERT(ms->ms_ppath, ("ms_ppath == NULL"));
540 ms->ms_ppath->mpp_vattach(vap);
544 * IEEE80211_M_MBSS vap state machine handler.
547 mesh_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
549 struct ieee80211_mesh_state *ms = vap->iv_mesh;
550 struct ieee80211com *ic = vap->iv_ic;
551 struct ieee80211_node *ni;
552 enum ieee80211_state ostate;
554 IEEE80211_LOCK_ASSERT(ic);
556 ostate = vap->iv_state;
557 IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s (%d)\n",
558 __func__, ieee80211_state_name[ostate],
559 ieee80211_state_name[nstate], arg);
560 vap->iv_state = nstate; /* state transition */
561 if (ostate != IEEE80211_S_SCAN)
562 ieee80211_cancel_scan(vap); /* background scan */
563 ni = vap->iv_bss; /* NB: no reference held */
564 if (nstate != IEEE80211_S_RUN && ostate == IEEE80211_S_RUN)
565 callout_drain(&ms->ms_cleantimer);
567 case IEEE80211_S_INIT:
569 case IEEE80211_S_SCAN:
570 ieee80211_cancel_scan(vap);
572 case IEEE80211_S_CAC:
573 ieee80211_dfs_cac_stop(vap);
575 case IEEE80211_S_RUN:
576 ieee80211_iterate_nodes(&ic->ic_sta,
577 mesh_vdetach_peers, NULL);
582 if (ostate != IEEE80211_S_INIT) {
583 /* NB: optimize INIT -> INIT case */
584 ieee80211_reset_bss(vap);
585 ieee80211_mesh_rt_flush(vap);
588 case IEEE80211_S_SCAN:
590 case IEEE80211_S_INIT:
591 if (vap->iv_des_chan != IEEE80211_CHAN_ANYC &&
592 !IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan) &&
595 * Already have a channel and a mesh ID; bypass
596 * the scan and startup immediately.
598 ieee80211_create_ibss(vap, vap->iv_des_chan);
602 * Initiate a scan. We can come here as a result
603 * of an IEEE80211_IOC_SCAN_REQ too in which case
604 * the vap will be marked with IEEE80211_FEXT_SCANREQ
605 * and the scan request parameters will be present
606 * in iv_scanreq. Otherwise we do the default.
608 if (vap->iv_flags_ext & IEEE80211_FEXT_SCANREQ) {
609 ieee80211_check_scan(vap,
610 vap->iv_scanreq_flags,
611 vap->iv_scanreq_duration,
612 vap->iv_scanreq_mindwell,
613 vap->iv_scanreq_maxdwell,
614 vap->iv_scanreq_nssid, vap->iv_scanreq_ssid);
615 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
617 ieee80211_check_scan_current(vap);
623 case IEEE80211_S_CAC:
625 * Start CAC on a DFS channel. We come here when starting
626 * a bss on a DFS channel (see ieee80211_create_ibss).
628 ieee80211_dfs_cac_start(vap);
630 case IEEE80211_S_RUN:
632 case IEEE80211_S_INIT:
634 * Already have a channel; bypass the
635 * scan and startup immediately.
636 * Note that ieee80211_create_ibss will call
637 * back to do a RUN->RUN state change.
639 ieee80211_create_ibss(vap,
640 ieee80211_ht_adjust_channel(ic,
641 ic->ic_curchan, vap->iv_flags_ht));
642 /* NB: iv_bss is changed on return */
644 case IEEE80211_S_CAC:
646 * NB: This is the normal state change when CAC
647 * expires and no radar was detected; no need to
648 * clear the CAC timer as it's already expired.
651 case IEEE80211_S_CSA:
654 * Shorten inactivity timer of associated stations
655 * to weed out sta's that don't follow a CSA.
657 ieee80211_iterate_nodes(&ic->ic_sta, sta_csa, vap);
660 * Update bss node channel to reflect where
661 * we landed after CSA.
663 ieee80211_node_set_chan(vap->iv_bss,
664 ieee80211_ht_adjust_channel(ic, ic->ic_curchan,
665 ieee80211_htchanflags(vap->iv_bss->ni_chan)));
666 /* XXX bypass debug msgs */
668 case IEEE80211_S_SCAN:
669 case IEEE80211_S_RUN:
670 #ifdef IEEE80211_DEBUG
671 if (ieee80211_msg_debug(vap)) {
672 struct ieee80211_node *ni = vap->iv_bss;
674 "synchronized with %s meshid ",
675 ether_sprintf(ni->ni_meshid));
676 ieee80211_print_essid(ni->ni_meshid,
679 printf(" channel %d\n",
680 ieee80211_chan2ieee(ic, ic->ic_curchan));
687 ieee80211_node_authorize(vap->iv_bss);
688 callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact,
689 mesh_rt_cleanup_cb, vap);
694 /* NB: ostate not nstate */
695 ms->ms_ppath->mpp_newstate(vap, ostate, arg);
700 mesh_rt_cleanup_cb(void *arg)
702 struct ieee80211vap *vap = arg;
703 struct ieee80211_mesh_state *ms = vap->iv_mesh;
705 mesh_rt_flush_invalid(vap);
706 callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact,
707 mesh_rt_cleanup_cb, vap);
712 * Helper function to note the Mesh Peer Link FSM change.
715 mesh_linkchange(struct ieee80211_node *ni, enum ieee80211_mesh_mlstate state)
717 struct ieee80211vap *vap = ni->ni_vap;
718 struct ieee80211_mesh_state *ms = vap->iv_mesh;
719 #ifdef IEEE80211_DEBUG
720 static const char *meshlinkstates[] = {
721 [IEEE80211_NODE_MESH_IDLE] = "IDLE",
722 [IEEE80211_NODE_MESH_OPENSNT] = "OPEN SENT",
723 [IEEE80211_NODE_MESH_OPENRCV] = "OPEN RECEIVED",
724 [IEEE80211_NODE_MESH_CONFIRMRCV] = "CONFIRM RECEIVED",
725 [IEEE80211_NODE_MESH_ESTABLISHED] = "ESTABLISHED",
726 [IEEE80211_NODE_MESH_HOLDING] = "HOLDING"
729 IEEE80211_NOTE(vap, IEEE80211_MSG_MESH,
730 ni, "peer link: %s -> %s",
731 meshlinkstates[ni->ni_mlstate], meshlinkstates[state]);
733 /* track neighbor count */
734 if (state == IEEE80211_NODE_MESH_ESTABLISHED &&
735 ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
736 KASSERT(ms->ms_neighbors < 65535, ("neighbor count overflow"));
738 ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF);
739 } else if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED &&
740 state != IEEE80211_NODE_MESH_ESTABLISHED) {
741 KASSERT(ms->ms_neighbors > 0, ("neighbor count 0"));
743 ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF);
745 ni->ni_mlstate = state;
747 case IEEE80211_NODE_MESH_HOLDING:
748 ms->ms_ppath->mpp_peerdown(ni);
750 case IEEE80211_NODE_MESH_ESTABLISHED:
751 ieee80211_mesh_discover(vap, ni->ni_macaddr, NULL);
759 * Helper function to generate a unique local ID required for mesh
760 * peer establishment.
763 mesh_checkid(void *arg, struct ieee80211_node *ni)
767 if (*r == ni->ni_mllid)
768 *(uint16_t *)arg = 0;
772 mesh_generateid(struct ieee80211vap *vap)
778 get_random_bytes(&r, 2);
779 ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_checkid, &r);
781 } while (r == 0 && maxiter > 0);
786 * Verifies if we already received this packet by checking its
788 * Returns 0 if the frame is to be accepted, 1 otherwise.
791 mesh_checkpseq(struct ieee80211vap *vap,
792 const uint8_t source[IEEE80211_ADDR_LEN], uint32_t seq)
794 struct ieee80211_mesh_route *rt;
796 rt = ieee80211_mesh_rt_find(vap, source);
798 rt = ieee80211_mesh_rt_add(vap, source);
800 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source,
801 "%s", "add mcast route failed");
802 vap->iv_stats.is_mesh_rtaddfailed++;
805 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source,
806 "add mcast route, mesh seqno %d", seq);
807 rt->rt_lastmseq = seq;
810 if (IEEE80211_MESH_SEQ_GEQ(rt->rt_lastmseq, seq)) {
813 rt->rt_lastmseq = seq;
819 * Iterate the routing table and locate the next hop.
821 static struct ieee80211_node *
822 mesh_find_txnode(struct ieee80211vap *vap,
823 const uint8_t dest[IEEE80211_ADDR_LEN])
825 struct ieee80211_mesh_route *rt;
827 rt = ieee80211_mesh_rt_find(vap, dest);
830 if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0 ||
831 (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY)) {
832 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest,
833 "%s: !valid or proxy, flags 0x%x", __func__, rt->rt_flags);
837 return ieee80211_find_txnode(vap, rt->rt_nexthop);
841 * Forward the specified frame.
842 * Decrement the TTL and set TA to our MAC address.
845 mesh_forward(struct ieee80211vap *vap, struct mbuf *m,
846 const struct ieee80211_meshcntl *mc)
848 struct ieee80211com *ic = vap->iv_ic;
849 struct ieee80211_mesh_state *ms = vap->iv_mesh;
850 struct ifnet *ifp = vap->iv_ifp;
851 struct ifnet *parent = ic->ic_ifp;
852 const struct ieee80211_frame *wh =
853 mtod(m, const struct ieee80211_frame *);
855 struct ieee80211_meshcntl *mccopy;
856 struct ieee80211_frame *whcopy;
857 struct ieee80211_node *ni;
860 if (mc->mc_ttl == 0) {
861 IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh,
862 "%s", "frame not fwd'd, ttl 0");
863 vap->iv_stats.is_mesh_fwd_ttl++;
866 if (!(ms->ms_flags & IEEE80211_MESHFLAGS_FWD)) {
867 IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh,
868 "%s", "frame not fwd'd, fwding disabled");
869 vap->iv_stats.is_mesh_fwd_disabled++;
872 mcopy = m_dup(m, M_DONTWAIT);
874 IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh,
875 "%s", "frame not fwd'd, cannot dup");
876 vap->iv_stats.is_mesh_fwd_nobuf++;
880 mcopy = m_pullup(mcopy, ieee80211_hdrspace(ic, wh) +
881 sizeof(struct ieee80211_meshcntl));
883 IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh,
884 "%s", "frame not fwd'd, too short");
885 vap->iv_stats.is_mesh_fwd_tooshort++;
890 whcopy = mtod(mcopy, struct ieee80211_frame *);
891 mccopy = (struct ieee80211_meshcntl *)
892 (mtod(mcopy, uint8_t *) + ieee80211_hdrspace(ic, wh));
893 /* XXX clear other bits? */
894 whcopy->i_fc[1] &= ~IEEE80211_FC1_RETRY;
895 IEEE80211_ADDR_COPY(whcopy->i_addr2, vap->iv_myaddr);
896 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
897 ni = ieee80211_ref_node(vap->iv_bss);
898 mcopy->m_flags |= M_MCAST;
900 ni = mesh_find_txnode(vap, whcopy->i_addr3);
902 IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh,
903 "%s", "frame not fwd'd, no path");
904 vap->iv_stats.is_mesh_fwd_nopath++;
908 IEEE80211_ADDR_COPY(whcopy->i_addr1, ni->ni_macaddr);
910 KASSERT(mccopy->mc_ttl > 0, ("%s called with wrong ttl", __func__));
913 /* XXX calculate priority so drivers can find the tx queue */
914 M_WME_SETAC(mcopy, WME_AC_BE);
916 /* XXX do we know m_nextpkt is NULL? */
917 mcopy->m_pkthdr.rcvif = (void *) ni;
918 err = parent->if_transmit(parent, mcopy);
920 /* NB: IFQ_HANDOFF reclaims mbuf */
921 ieee80211_free_node(ni);
928 mesh_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen, int meshdrlen)
930 #define WHDIR(wh) ((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK)
931 uint8_t b[sizeof(struct ieee80211_qosframe_addr4) +
932 sizeof(struct ieee80211_meshcntl_ae11)];
933 const struct ieee80211_qosframe_addr4 *wh;
934 const struct ieee80211_meshcntl_ae10 *mc;
935 struct ether_header *eh;
939 if (m->m_len < hdrlen + sizeof(*llc) &&
940 (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) {
941 IEEE80211_DPRINTF(vap, IEEE80211_MSG_ANY,
942 "discard data frame: %s", "m_pullup failed");
943 vap->iv_stats.is_rx_tooshort++;
946 memcpy(b, mtod(m, caddr_t), hdrlen);
947 wh = (const struct ieee80211_qosframe_addr4 *)&b[0];
948 mc = (const struct ieee80211_meshcntl_ae10 *)&b[hdrlen - meshdrlen];
949 KASSERT(WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS ||
950 WHDIR(wh) == IEEE80211_FC1_DIR_DSTODS,
951 ("bogus dir, fc 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1]));
953 llc = (struct llc *)(mtod(m, caddr_t) + hdrlen);
954 if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP &&
955 llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 &&
956 llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 &&
957 /* NB: preserve AppleTalk frames that have a native SNAP hdr */
958 !(llc->llc_snap.ether_type == htons(ETHERTYPE_AARP) ||
959 llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) {
960 m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh));
963 m_adj(m, hdrlen - sizeof(*eh));
965 eh = mtod(m, struct ether_header *);
966 ae = mc->mc_flags & 3;
967 if (WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS) {
968 IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr1);
970 IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr3);
971 } else if (ae == 1) {
972 IEEE80211_ADDR_COPY(eh->ether_shost, mc->mc_addr4);
974 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
975 (const struct ieee80211_frame *)wh, NULL,
977 vap->iv_stats.is_mesh_badae++;
983 IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr3);
984 IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr4);
985 } else if (ae == 2) {
986 IEEE80211_ADDR_COPY(eh->ether_dhost, mc->mc_addr4);
987 IEEE80211_ADDR_COPY(eh->ether_shost, mc->mc_addr5);
989 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
990 (const struct ieee80211_frame *)wh, NULL,
992 vap->iv_stats.is_mesh_badae++;
997 #ifdef ALIGNED_POINTER
998 if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) {
999 m = ieee80211_realign(vap, m, sizeof(*eh));
1003 #endif /* ALIGNED_POINTER */
1005 eh = mtod(m, struct ether_header *);
1006 eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh));
1013 * Return non-zero if the unicast mesh data frame should be processed
1014 * locally. Frames that are not proxy'd have our address, otherwise
1015 * we need to consult the routing table to look for a proxy entry.
1018 mesh_isucastforme(struct ieee80211vap *vap, const struct ieee80211_frame *wh,
1019 const struct ieee80211_meshcntl *mc)
1021 int ae = mc->mc_flags & 3;
1023 KASSERT((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS,
1024 ("bad dir 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1]));
1025 KASSERT(ae == 0 || ae == 2, ("bad AE %d", ae));
1026 if (ae == 2) { /* ucast w/ proxy */
1027 const struct ieee80211_meshcntl_ae10 *mc10 =
1028 (const struct ieee80211_meshcntl_ae10 *) mc;
1029 struct ieee80211_mesh_route *rt =
1030 ieee80211_mesh_rt_find(vap, mc10->mc_addr4);
1031 /* check for proxy route to ourself */
1032 return (rt != NULL &&
1033 (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY));
1034 } else /* ucast w/o proxy */
1035 return IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_myaddr);
1039 mesh_input(struct ieee80211_node *ni, struct mbuf *m, int rssi, int nf)
1041 #define SEQ_LEQ(a,b) ((int)((a)-(b)) <= 0)
1042 #define HAS_SEQ(type) ((type & 0x4) == 0)
1043 struct ieee80211vap *vap = ni->ni_vap;
1044 struct ieee80211com *ic = ni->ni_ic;
1045 struct ifnet *ifp = vap->iv_ifp;
1046 struct ieee80211_frame *wh;
1047 const struct ieee80211_meshcntl *mc;
1048 int hdrspace, meshdrlen, need_tap;
1049 uint8_t dir, type, subtype, qos;
1052 ieee80211_seq rxseq;
1054 KASSERT(ni != NULL, ("null node"));
1055 ni->ni_inact = ni->ni_inact_reload;
1057 need_tap = 1; /* mbuf need to be tapped. */
1058 type = -1; /* undefined */
1060 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) {
1061 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
1062 ni->ni_macaddr, NULL,
1063 "too short (1): len %u", m->m_pkthdr.len);
1064 vap->iv_stats.is_rx_tooshort++;
1068 * Bit of a cheat here, we use a pointer for a 3-address
1069 * frame format but don't reference fields past outside
1070 * ieee80211_frame_min w/o first validating the data is
1073 wh = mtod(m, struct ieee80211_frame *);
1075 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
1076 IEEE80211_FC0_VERSION_0) {
1077 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
1078 ni->ni_macaddr, NULL, "wrong version %x", wh->i_fc[0]);
1079 vap->iv_stats.is_rx_badversion++;
1082 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1083 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1084 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1085 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
1086 IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);
1088 if (HAS_SEQ(type)) {
1089 uint8_t tid = ieee80211_gettid(wh);
1091 if (IEEE80211_QOS_HAS_SEQ(wh) &&
1092 TID_TO_WME_AC(tid) >= WME_AC_VI)
1093 ic->ic_wme.wme_hipri_traffic++;
1094 rxseq = le16toh(*(uint16_t *)wh->i_seq);
1095 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0 &&
1096 (wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
1097 SEQ_LEQ(rxseq, ni->ni_rxseqs[tid])) {
1098 /* duplicate, discard */
1099 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
1100 wh->i_addr1, "duplicate",
1101 "seqno <%u,%u> fragno <%u,%u> tid %u",
1102 rxseq >> IEEE80211_SEQ_SEQ_SHIFT,
1103 ni->ni_rxseqs[tid] >>
1104 IEEE80211_SEQ_SEQ_SHIFT,
1105 rxseq & IEEE80211_SEQ_FRAG_MASK,
1106 ni->ni_rxseqs[tid] &
1107 IEEE80211_SEQ_FRAG_MASK,
1109 vap->iv_stats.is_rx_dup++;
1110 IEEE80211_NODE_STAT(ni, rx_dup);
1113 ni->ni_rxseqs[tid] = rxseq;
1116 #ifdef IEEE80211_DEBUG
1118 * It's easier, but too expensive, to simulate different mesh
1119 * topologies by consulting the ACL policy very early, so do this
1122 * NB: this check is also done upon peering link initiation.
1124 if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh->i_addr2)) {
1125 IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL,
1126 wh, NULL, "%s", "disallowed by ACL");
1127 vap->iv_stats.is_rx_acl++;
1132 case IEEE80211_FC0_TYPE_DATA:
1133 if (ni == vap->iv_bss)
1135 if (ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
1136 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
1137 ni->ni_macaddr, NULL,
1138 "peer link not yet established (%d)",
1140 vap->iv_stats.is_mesh_nolink++;
1143 if (dir != IEEE80211_FC1_DIR_FROMDS &&
1144 dir != IEEE80211_FC1_DIR_DSTODS) {
1145 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1146 wh, "data", "incorrect dir 0x%x", dir);
1147 vap->iv_stats.is_rx_wrongdir++;
1150 /* pull up enough to get to the mesh control */
1151 hdrspace = ieee80211_hdrspace(ic, wh);
1152 if (m->m_len < hdrspace + sizeof(struct ieee80211_meshcntl) &&
1153 (m = m_pullup(m, hdrspace +
1154 sizeof(struct ieee80211_meshcntl))) == NULL) {
1155 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
1156 ni->ni_macaddr, NULL,
1157 "data too short: expecting %u", hdrspace);
1158 vap->iv_stats.is_rx_tooshort++;
1162 * Now calculate the full extent of the headers. Note
1163 * mesh_decap will pull up anything we didn't get
1164 * above when it strips the 802.11 headers.
1166 mc = (const struct ieee80211_meshcntl *)
1167 (mtod(m, const uint8_t *) + hdrspace);
1168 meshdrlen = sizeof(struct ieee80211_meshcntl) +
1169 (mc->mc_flags & 3) * IEEE80211_ADDR_LEN;
1170 hdrspace += meshdrlen;
1171 seq = LE_READ_4(mc->mc_seq);
1172 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1175 addr = ((struct ieee80211_qosframe_addr4 *)wh)->i_addr4;
1176 if (IEEE80211_ADDR_EQ(vap->iv_myaddr, addr)) {
1177 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
1178 addr, "data", "%s", "not to me");
1179 vap->iv_stats.is_rx_wrongbss++; /* XXX kinda */
1182 if (mesh_checkpseq(vap, addr, seq) != 0) {
1183 vap->iv_stats.is_rx_dup++;
1188 * Potentially forward packet. See table s36 (p140)
1189 * for the rules. XXX tap fwd'd packets not for us?
1191 if (dir == IEEE80211_FC1_DIR_FROMDS ||
1192 !mesh_isucastforme(vap, wh, mc)) {
1193 mesh_forward(vap, m, mc);
1194 if (dir == IEEE80211_FC1_DIR_DSTODS)
1196 /* NB: fall thru to deliver mcast frames locally */
1200 * Save QoS bits for use below--before we strip the header.
1202 if (subtype == IEEE80211_FC0_SUBTYPE_QOS) {
1203 qos = (dir == IEEE80211_FC1_DIR_DSTODS) ?
1204 ((struct ieee80211_qosframe_addr4 *)wh)->i_qos[0] :
1205 ((struct ieee80211_qosframe *)wh)->i_qos[0];
1209 * Next up, any fragmentation.
1211 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1212 m = ieee80211_defrag(ni, m, hdrspace);
1214 /* Fragment dropped or frame not complete yet */
1218 wh = NULL; /* no longer valid, catch any uses */
1220 if (ieee80211_radiotap_active_vap(vap))
1221 ieee80211_radiotap_rx(vap, m);
1225 * Finally, strip the 802.11 header.
1227 m = mesh_decap(vap, m, hdrspace, meshdrlen);
1229 /* XXX mask bit to check for both */
1230 /* don't count Null data frames as errors */
1231 if (subtype == IEEE80211_FC0_SUBTYPE_NODATA ||
1232 subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL)
1234 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
1235 ni->ni_macaddr, "data", "%s", "decap error");
1236 vap->iv_stats.is_rx_decap++;
1237 IEEE80211_NODE_STAT(ni, rx_decap);
1240 if (qos & IEEE80211_QOS_AMSDU) {
1241 m = ieee80211_decap_amsdu(ni, m);
1243 return IEEE80211_FC0_TYPE_DATA;
1245 ieee80211_deliver_data(vap, ni, m);
1247 case IEEE80211_FC0_TYPE_MGT:
1248 vap->iv_stats.is_rx_mgmt++;
1249 IEEE80211_NODE_STAT(ni, rx_mgmt);
1250 if (dir != IEEE80211_FC1_DIR_NODS) {
1251 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1252 wh, "mgt", "incorrect dir 0x%x", dir);
1253 vap->iv_stats.is_rx_wrongdir++;
1256 if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) {
1257 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
1258 ni->ni_macaddr, "mgt", "too short: len %u",
1260 vap->iv_stats.is_rx_tooshort++;
1263 #ifdef IEEE80211_DEBUG
1264 if ((ieee80211_msg_debug(vap) &&
1265 (vap->iv_ic->ic_flags & IEEE80211_F_SCAN)) ||
1266 ieee80211_msg_dumppkts(vap)) {
1267 if_printf(ifp, "received %s from %s rssi %d\n",
1268 ieee80211_mgt_subtype_name[subtype >>
1269 IEEE80211_FC0_SUBTYPE_SHIFT],
1270 ether_sprintf(wh->i_addr2), rssi);
1273 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1274 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1275 wh, NULL, "%s", "WEP set but not permitted");
1276 vap->iv_stats.is_rx_mgtdiscard++; /* XXX */
1279 vap->iv_recv_mgmt(ni, m, subtype, rssi, nf);
1281 case IEEE80211_FC0_TYPE_CTL:
1282 vap->iv_stats.is_rx_ctl++;
1283 IEEE80211_NODE_STAT(ni, rx_ctrl);
1286 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
1287 wh, "bad", "frame type 0x%x", type);
1288 /* should not come here */
1295 if (need_tap && ieee80211_radiotap_active_vap(vap))
1296 ieee80211_radiotap_rx(vap, m);
1303 mesh_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
1306 struct ieee80211vap *vap = ni->ni_vap;
1307 struct ieee80211_mesh_state *ms = vap->iv_mesh;
1308 struct ieee80211com *ic = ni->ni_ic;
1309 struct ieee80211_frame *wh;
1310 uint8_t *frm, *efrm;
1312 wh = mtod(m0, struct ieee80211_frame *);
1313 frm = (uint8_t *)&wh[1];
1314 efrm = mtod(m0, uint8_t *) + m0->m_len;
1316 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
1317 case IEEE80211_FC0_SUBTYPE_BEACON:
1319 struct ieee80211_scanparams scan;
1321 * We process beacon/probe response
1322 * frames to discover neighbors.
1324 if (ieee80211_parse_beacon(ni, m0, &scan) != 0)
1327 * Count frame now that we know it's to be processed.
1329 if (subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
1330 vap->iv_stats.is_rx_beacon++; /* XXX remove */
1331 IEEE80211_NODE_STAT(ni, rx_beacons);
1333 IEEE80211_NODE_STAT(ni, rx_proberesp);
1335 * If scanning, just pass information to the scan module.
1337 if (ic->ic_flags & IEEE80211_F_SCAN) {
1338 if (ic->ic_flags_ext & IEEE80211_FEXT_PROBECHAN) {
1340 * Actively scanning a channel marked passive;
1341 * send a probe request now that we know there
1342 * is 802.11 traffic present.
1344 * XXX check if the beacon we recv'd gives
1345 * us what we need and suppress the probe req
1347 ieee80211_probe_curchan(vap, 1);
1348 ic->ic_flags_ext &= ~IEEE80211_FEXT_PROBECHAN;
1350 ieee80211_add_scan(vap, &scan, wh,
1355 /* The rest of this code assumes we are running */
1356 if (vap->iv_state != IEEE80211_S_RUN)
1359 * Ignore non-mesh STAs.
1362 (IEEE80211_CAPINFO_ESS|IEEE80211_CAPINFO_IBSS)) ||
1363 scan.meshid == NULL || scan.meshconf == NULL) {
1364 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1365 wh, "beacon", "%s", "not a mesh sta");
1366 vap->iv_stats.is_mesh_wrongmesh++;
1370 * Ignore STAs for other mesh networks.
1372 if (memcmp(scan.meshid+2, ms->ms_id, ms->ms_idlen) != 0 ||
1373 mesh_verify_meshconf(vap, scan.meshconf)) {
1374 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1375 wh, "beacon", "%s", "not for our mesh");
1376 vap->iv_stats.is_mesh_wrongmesh++;
1380 * Peer only based on the current ACL policy.
1382 if (vap->iv_acl != NULL &&
1383 !vap->iv_acl->iac_check(vap, wh->i_addr2)) {
1384 IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL,
1385 wh, NULL, "%s", "disallowed by ACL");
1386 vap->iv_stats.is_rx_acl++;
1390 * Do neighbor discovery.
1392 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_macaddr)) {
1394 * Create a new entry in the neighbor table.
1396 ni = ieee80211_add_neighbor(vap, wh, &scan);
1399 * Automatically peer with discovered nodes if possible.
1400 * XXX backoff on repeated failure
1402 if (ni != vap->iv_bss &&
1403 (ms->ms_flags & IEEE80211_MESHFLAGS_AP) &&
1404 ni->ni_mlstate == IEEE80211_NODE_MESH_IDLE) {
1407 ni->ni_mlpid = mesh_generateid(vap);
1408 if (ni->ni_mlpid == 0)
1410 mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENSNT);
1411 args[0] = ni->ni_mlpid;
1412 ieee80211_send_action(ni,
1413 IEEE80211_ACTION_CAT_MESHPEERING,
1414 IEEE80211_ACTION_MESHPEERING_OPEN, args);
1416 mesh_peer_timeout_setup(ni);
1420 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
1422 uint8_t *ssid, *meshid, *rates, *xrates;
1425 if (vap->iv_state != IEEE80211_S_RUN) {
1426 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1427 wh, NULL, "wrong state %s",
1428 ieee80211_state_name[vap->iv_state]);
1429 vap->iv_stats.is_rx_mgtdiscard++;
1432 if (IEEE80211_IS_MULTICAST(wh->i_addr2)) {
1433 /* frame must be directed */
1434 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1435 wh, NULL, "%s", "not unicast");
1436 vap->iv_stats.is_rx_mgtdiscard++; /* XXX stat */
1440 * prreq frame format
1442 * [tlv] supported rates
1443 * [tlv] extended supported rates
1446 ssid = meshid = rates = xrates = NULL;
1448 while (efrm - frm > 1) {
1449 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return);
1451 case IEEE80211_ELEMID_SSID:
1454 case IEEE80211_ELEMID_RATES:
1457 case IEEE80211_ELEMID_XRATES:
1460 case IEEE80211_ELEMID_MESHID:
1466 IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN, return);
1467 IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE, return);
1469 IEEE80211_VERIFY_ELEMENT(xrates,
1470 IEEE80211_RATE_MAXSIZE - rates[1], return);
1472 IEEE80211_VERIFY_ELEMENT(meshid,
1473 IEEE80211_MESHID_LEN, return);
1474 /* NB: meshid, not ssid */
1475 IEEE80211_VERIFY_SSID(vap->iv_bss, meshid, return);
1477 /* XXX find a better class or define it's own */
1478 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
1479 "%s", "recv probe req");
1481 * Some legacy 11b clients cannot hack a complete
1482 * probe response frame. When the request includes
1483 * only a bare-bones rate set, communicate this to
1484 * the transmit side.
1486 ieee80211_send_proberesp(vap, wh->i_addr2, 0);
1489 case IEEE80211_FC0_SUBTYPE_ACTION:
1490 if (vap->iv_state != IEEE80211_S_RUN) {
1491 vap->iv_stats.is_rx_mgtdiscard++;
1495 * We received an action for an unknown neighbor.
1496 * XXX: wait for it to beacon or create ieee80211_node?
1498 if (ni == vap->iv_bss) {
1499 IEEE80211_DISCARD(vap, IEEE80211_MSG_MESH,
1500 wh, NULL, "%s", "unknown node");
1501 vap->iv_stats.is_rx_mgtdiscard++;
1505 * Discard if not for us.
1507 if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1) &&
1508 !IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1509 IEEE80211_DISCARD(vap, IEEE80211_MSG_MESH,
1510 wh, NULL, "%s", "not for me");
1511 vap->iv_stats.is_rx_mgtdiscard++;
1514 /* XXX parse_action is a bit useless now */
1515 if (ieee80211_parse_action(ni, m0) == 0)
1516 ic->ic_recv_action(ni, wh, frm, efrm);
1518 case IEEE80211_FC0_SUBTYPE_AUTH:
1519 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
1520 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
1521 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
1522 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
1523 case IEEE80211_FC0_SUBTYPE_DEAUTH:
1524 case IEEE80211_FC0_SUBTYPE_DISASSOC:
1525 IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
1526 wh, NULL, "%s", "not handled");
1527 vap->iv_stats.is_rx_mgtdiscard++;
1530 IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
1531 wh, "mgt", "subtype 0x%x not handled", subtype);
1532 vap->iv_stats.is_rx_badsubtype++;
1538 * Parse meshpeering action ie's for open+confirm frames; the
1539 * important bits are returned in the supplied structure.
1541 static const struct ieee80211_meshpeer_ie *
1542 mesh_parse_meshpeering_action(struct ieee80211_node *ni,
1543 const struct ieee80211_frame *wh, /* XXX for VERIFY_LENGTH */
1544 const uint8_t *frm, const uint8_t *efrm,
1545 struct ieee80211_meshpeer_ie *mp, uint8_t subtype)
1547 struct ieee80211vap *vap = ni->ni_vap;
1548 const struct ieee80211_meshpeer_ie *mpie;
1549 const uint8_t *meshid, *meshconf, *meshpeer;
1551 meshid = meshconf = meshpeer = NULL;
1552 while (efrm - frm > 1) {
1553 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return NULL);
1555 case IEEE80211_ELEMID_MESHID:
1558 case IEEE80211_ELEMID_MESHCONF:
1561 case IEEE80211_ELEMID_MESHPEER:
1563 mpie = (const struct ieee80211_meshpeer_ie *) frm;
1564 memset(mp, 0, sizeof(*mp));
1565 mp->peer_llinkid = LE_READ_2(&mpie->peer_llinkid);
1566 /* NB: peer link ID is optional on these frames */
1567 if (subtype == IEEE80211_MESH_PEER_LINK_CLOSE &&
1568 mpie->peer_len == 8) {
1569 mp->peer_linkid = 0;
1570 mp->peer_rcode = LE_READ_2(&mpie->peer_linkid);
1572 mp->peer_linkid = LE_READ_2(&mpie->peer_linkid);
1573 mp->peer_rcode = LE_READ_2(&mpie->peer_rcode);
1581 * Verify the contents of the frame. Action frames with
1582 * close subtype don't have a Mesh Configuration IE.
1583 * If if fails validation, close the peer link.
1585 KASSERT(meshpeer != NULL &&
1586 subtype != IEEE80211_ACTION_MESHPEERING_CLOSE,
1587 ("parsing close action"));
1589 if (mesh_verify_meshid(vap, meshid) ||
1590 mesh_verify_meshpeer(vap, subtype, meshpeer) ||
1591 mesh_verify_meshconf(vap, meshconf)) {
1594 IEEE80211_DISCARD(vap,
1595 IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH,
1596 wh, NULL, "%s", "not for our mesh");
1597 vap->iv_stats.is_rx_mgtdiscard++;
1598 switch (ni->ni_mlstate) {
1599 case IEEE80211_NODE_MESH_IDLE:
1600 case IEEE80211_NODE_MESH_ESTABLISHED:
1601 case IEEE80211_NODE_MESH_HOLDING:
1604 case IEEE80211_NODE_MESH_OPENSNT:
1605 case IEEE80211_NODE_MESH_OPENRCV:
1606 case IEEE80211_NODE_MESH_CONFIRMRCV:
1607 args[0] = ni->ni_mlpid;
1608 args[1] = ni->ni_mllid;
1609 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
1610 ieee80211_send_action(ni,
1611 IEEE80211_ACTION_CAT_MESHPEERING,
1612 IEEE80211_ACTION_MESHPEERING_CLOSE,
1614 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
1615 mesh_peer_timeout_setup(ni);
1620 return (const struct ieee80211_meshpeer_ie *) mp;
1624 mesh_recv_action_meshpeering_open(struct ieee80211_node *ni,
1625 const struct ieee80211_frame *wh,
1626 const uint8_t *frm, const uint8_t *efrm)
1628 struct ieee80211vap *vap = ni->ni_vap;
1629 struct ieee80211_meshpeer_ie ie;
1630 const struct ieee80211_meshpeer_ie *meshpeer;
1633 /* +2+2 for action + code + capabilites */
1634 meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2, efrm, &ie,
1635 IEEE80211_ACTION_MESHPEERING_OPEN);
1636 if (meshpeer == NULL) {
1641 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
1642 "recv PEER OPEN, lid 0x%x", meshpeer->peer_llinkid);
1644 switch (ni->ni_mlstate) {
1645 case IEEE80211_NODE_MESH_IDLE:
1646 mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV);
1647 ni->ni_mllid = meshpeer->peer_llinkid;
1648 ni->ni_mlpid = mesh_generateid(vap);
1649 if (ni->ni_mlpid == 0)
1651 args[0] = ni->ni_mlpid;
1652 /* Announce we're open too... */
1653 ieee80211_send_action(ni,
1654 IEEE80211_ACTION_CAT_MESHPEERING,
1655 IEEE80211_ACTION_MESHPEERING_OPEN, args);
1656 /* ...and confirm the link. */
1657 args[0] = ni->ni_mlpid;
1658 args[1] = ni->ni_mllid;
1659 ieee80211_send_action(ni,
1660 IEEE80211_ACTION_CAT_MESHPEERING,
1661 IEEE80211_ACTION_MESHPEERING_CONFIRM,
1663 mesh_peer_timeout_setup(ni);
1665 case IEEE80211_NODE_MESH_OPENRCV:
1667 if (ni->ni_mllid != meshpeer->peer_llinkid) {
1668 args[0] = ni->ni_mllid;
1669 args[1] = ni->ni_mlpid;
1670 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
1671 ieee80211_send_action(ni,
1672 IEEE80211_ACTION_CAT_MESHPEERING,
1673 IEEE80211_ACTION_MESHPEERING_CLOSE,
1675 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
1676 mesh_peer_timeout_setup(ni);
1679 /* Duplicate open, confirm again. */
1680 args[0] = ni->ni_mlpid;
1681 args[1] = ni->ni_mllid;
1682 ieee80211_send_action(ni,
1683 IEEE80211_ACTION_CAT_MESHPEERING,
1684 IEEE80211_ACTION_MESHPEERING_CONFIRM,
1687 case IEEE80211_NODE_MESH_OPENSNT:
1688 ni->ni_mllid = meshpeer->peer_llinkid;
1689 mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV);
1690 args[0] = ni->ni_mlpid;
1691 args[1] = ni->ni_mllid;
1692 ieee80211_send_action(ni,
1693 IEEE80211_ACTION_CAT_MESHPEERING,
1694 IEEE80211_ACTION_MESHPEERING_CONFIRM,
1696 /* NB: don't setup/clear any timeout */
1698 case IEEE80211_NODE_MESH_CONFIRMRCV:
1699 if (ni->ni_mlpid != meshpeer->peer_linkid ||
1700 ni->ni_mllid != meshpeer->peer_llinkid) {
1701 args[0] = ni->ni_mlpid;
1702 args[1] = ni->ni_mllid;
1703 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
1704 ieee80211_send_action(ni,
1705 IEEE80211_ACTION_CAT_MESHPEERING,
1706 IEEE80211_ACTION_MESHPEERING_CLOSE,
1709 IEEE80211_NODE_MESH_HOLDING);
1710 mesh_peer_timeout_setup(ni);
1713 mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED);
1714 ni->ni_mllid = meshpeer->peer_llinkid;
1715 args[0] = ni->ni_mlpid;
1716 args[1] = ni->ni_mllid;
1717 ieee80211_send_action(ni,
1718 IEEE80211_ACTION_CAT_MESHPEERING,
1719 IEEE80211_ACTION_MESHPEERING_CONFIRM,
1721 mesh_peer_timeout_stop(ni);
1723 case IEEE80211_NODE_MESH_ESTABLISHED:
1724 if (ni->ni_mllid != meshpeer->peer_llinkid) {
1725 args[0] = ni->ni_mllid;
1726 args[1] = ni->ni_mlpid;
1727 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
1728 ieee80211_send_action(ni,
1729 IEEE80211_ACTION_CAT_MESHPEERING,
1730 IEEE80211_ACTION_MESHPEERING_CLOSE,
1732 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
1733 mesh_peer_timeout_setup(ni);
1736 args[0] = ni->ni_mlpid;
1737 args[1] = ni->ni_mllid;
1738 ieee80211_send_action(ni,
1739 IEEE80211_ACTION_CAT_MESHPEERING,
1740 IEEE80211_ACTION_MESHPEERING_CONFIRM,
1743 case IEEE80211_NODE_MESH_HOLDING:
1744 args[0] = ni->ni_mlpid;
1745 args[1] = meshpeer->peer_llinkid;
1746 args[2] = IEEE80211_REASON_MESH_MAX_RETRIES;
1747 ieee80211_send_action(ni,
1748 IEEE80211_ACTION_CAT_MESHPEERING,
1749 IEEE80211_ACTION_MESHPEERING_CLOSE,
1757 mesh_recv_action_meshpeering_confirm(struct ieee80211_node *ni,
1758 const struct ieee80211_frame *wh,
1759 const uint8_t *frm, const uint8_t *efrm)
1761 struct ieee80211vap *vap = ni->ni_vap;
1762 struct ieee80211_meshpeer_ie ie;
1763 const struct ieee80211_meshpeer_ie *meshpeer;
1766 /* +2+2+2+2 for action + code + capabilites + status code + AID */
1767 meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2+2+2, efrm, &ie,
1768 IEEE80211_ACTION_MESHPEERING_CONFIRM);
1769 if (meshpeer == NULL) {
1773 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
1774 "recv PEER CONFIRM, local id 0x%x, peer id 0x%x",
1775 meshpeer->peer_llinkid, meshpeer->peer_linkid);
1777 switch (ni->ni_mlstate) {
1778 case IEEE80211_NODE_MESH_OPENRCV:
1779 mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED);
1780 mesh_peer_timeout_stop(ni);
1782 case IEEE80211_NODE_MESH_OPENSNT:
1783 mesh_linkchange(ni, IEEE80211_NODE_MESH_CONFIRMRCV);
1785 case IEEE80211_NODE_MESH_HOLDING:
1786 args[0] = ni->ni_mlpid;
1787 args[1] = meshpeer->peer_llinkid;
1788 args[2] = IEEE80211_REASON_MESH_MAX_RETRIES;
1789 ieee80211_send_action(ni,
1790 IEEE80211_ACTION_CAT_MESHPEERING,
1791 IEEE80211_ACTION_MESHPEERING_CLOSE,
1794 case IEEE80211_NODE_MESH_CONFIRMRCV:
1795 if (ni->ni_mllid != meshpeer->peer_llinkid) {
1796 args[0] = ni->ni_mlpid;
1797 args[1] = ni->ni_mllid;
1798 args[2] = IEEE80211_REASON_PEER_LINK_CANCELED;
1799 ieee80211_send_action(ni,
1800 IEEE80211_ACTION_CAT_MESHPEERING,
1801 IEEE80211_ACTION_MESHPEERING_CLOSE,
1803 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
1804 mesh_peer_timeout_setup(ni);
1808 IEEE80211_DISCARD(vap,
1809 IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH,
1810 wh, NULL, "received confirm in invalid state %d",
1812 vap->iv_stats.is_rx_mgtdiscard++;
1819 mesh_recv_action_meshpeering_close(struct ieee80211_node *ni,
1820 const struct ieee80211_frame *wh,
1821 const uint8_t *frm, const uint8_t *efrm)
1825 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH,
1826 ni, "%s", "recv PEER CLOSE");
1828 switch (ni->ni_mlstate) {
1829 case IEEE80211_NODE_MESH_IDLE:
1832 case IEEE80211_NODE_MESH_OPENRCV:
1833 case IEEE80211_NODE_MESH_OPENSNT:
1834 case IEEE80211_NODE_MESH_CONFIRMRCV:
1835 case IEEE80211_NODE_MESH_ESTABLISHED:
1836 args[0] = ni->ni_mlpid;
1837 args[1] = ni->ni_mllid;
1838 args[2] = IEEE80211_REASON_MESH_CLOSE_RCVD;
1839 ieee80211_send_action(ni,
1840 IEEE80211_ACTION_CAT_MESHPEERING,
1841 IEEE80211_ACTION_MESHPEERING_CLOSE,
1843 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
1844 mesh_peer_timeout_setup(ni);
1846 case IEEE80211_NODE_MESH_HOLDING:
1847 mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE);
1848 mesh_peer_timeout_setup(ni);
1855 * Link Metric handling.
1858 mesh_recv_action_meshlmetric_req(struct ieee80211_node *ni,
1859 const struct ieee80211_frame *wh,
1860 const uint8_t *frm, const uint8_t *efrm)
1864 metric = mesh_airtime_calc(ni);
1865 ieee80211_send_action(ni,
1866 IEEE80211_ACTION_CAT_MESHLMETRIC,
1867 IEEE80211_ACTION_MESHLMETRIC_REP,
1873 mesh_recv_action_meshlmetric_rep(struct ieee80211_node *ni,
1874 const struct ieee80211_frame *wh,
1875 const uint8_t *frm, const uint8_t *efrm)
1881 mesh_send_action(struct ieee80211_node *ni, struct mbuf *m)
1883 struct ieee80211_bpf_params params;
1885 memset(¶ms, 0, sizeof(params));
1886 params.ibp_pri = WME_AC_VO;
1887 params.ibp_rate0 = ni->ni_txparms->mgmtrate;
1888 /* XXX ucast/mcast */
1889 params.ibp_try0 = ni->ni_txparms->maxretry;
1890 params.ibp_power = ni->ni_txpower;
1891 return ieee80211_mgmt_output(ni, m, IEEE80211_FC0_SUBTYPE_ACTION,
1895 #define ADDSHORT(frm, v) do { \
1896 frm[0] = (v) & 0xff; \
1897 frm[1] = (v) >> 8; \
1900 #define ADDWORD(frm, v) do { \
1901 frm[0] = (v) & 0xff; \
1902 frm[1] = ((v) >> 8) & 0xff; \
1903 frm[2] = ((v) >> 16) & 0xff; \
1904 frm[3] = ((v) >> 24) & 0xff; \
1909 mesh_send_action_meshpeering_open(struct ieee80211_node *ni,
1910 int category, int action, void *args0)
1912 struct ieee80211vap *vap = ni->ni_vap;
1913 struct ieee80211com *ic = ni->ni_ic;
1914 uint16_t *args = args0;
1915 const struct ieee80211_rateset *rs;
1919 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
1920 "send PEER OPEN action: localid 0x%x", args[0]);
1922 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
1923 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
1924 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
1925 ieee80211_ref_node(ni);
1927 m = ieee80211_getmgtframe(&frm,
1928 ic->ic_headroom + sizeof(struct ieee80211_frame),
1929 sizeof(uint16_t) /* action+category */
1930 + sizeof(uint16_t) /* capabilites */
1931 + 2 + IEEE80211_RATE_SIZE
1932 + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE)
1933 + 2 + IEEE80211_MESHID_LEN
1934 + sizeof(struct ieee80211_meshconf_ie)
1935 + sizeof(struct ieee80211_meshpeer_ie)
1939 * mesh peer open action frame format:
1947 * [tlv] mesh peer link mgmt
1951 ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan));
1952 rs = ieee80211_get_suprates(ic, ic->ic_curchan);
1953 frm = ieee80211_add_rates(frm, rs);
1954 frm = ieee80211_add_xrates(frm, rs);
1955 frm = ieee80211_add_meshid(frm, vap);
1956 frm = ieee80211_add_meshconf(frm, vap);
1957 frm = ieee80211_add_meshpeer(frm, IEEE80211_MESH_PEER_LINK_OPEN,
1959 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
1960 return mesh_send_action(ni, m);
1962 vap->iv_stats.is_tx_nobuf++;
1963 ieee80211_free_node(ni);
1969 mesh_send_action_meshpeering_confirm(struct ieee80211_node *ni,
1970 int category, int action, void *args0)
1972 struct ieee80211vap *vap = ni->ni_vap;
1973 struct ieee80211com *ic = ni->ni_ic;
1974 uint16_t *args = args0;
1975 const struct ieee80211_rateset *rs;
1979 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
1980 "send PEER CONFIRM action: localid 0x%x, peerid 0x%x",
1983 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
1984 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
1985 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
1986 ieee80211_ref_node(ni);
1988 m = ieee80211_getmgtframe(&frm,
1989 ic->ic_headroom + sizeof(struct ieee80211_frame),
1990 sizeof(uint16_t) /* action+category */
1991 + sizeof(uint16_t) /* capabilites */
1992 + sizeof(uint16_t) /* status code */
1993 + sizeof(uint16_t) /* AID */
1994 + 2 + IEEE80211_RATE_SIZE
1995 + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE)
1996 + 2 + IEEE80211_MESHID_LEN
1997 + sizeof(struct ieee80211_meshconf_ie)
1998 + sizeof(struct ieee80211_meshpeer_ie)
2002 * mesh peer confirm action frame format:
2007 * [2] association id (peer ID)
2012 * [tlv] mesh peer link mgmt
2016 ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan));
2017 ADDSHORT(frm, 0); /* status code */
2018 ADDSHORT(frm, args[1]); /* AID */
2019 rs = ieee80211_get_suprates(ic, ic->ic_curchan);
2020 frm = ieee80211_add_rates(frm, rs);
2021 frm = ieee80211_add_xrates(frm, rs);
2022 frm = ieee80211_add_meshid(frm, vap);
2023 frm = ieee80211_add_meshconf(frm, vap);
2024 frm = ieee80211_add_meshpeer(frm,
2025 IEEE80211_MESH_PEER_LINK_CONFIRM,
2026 args[0], args[1], 0);
2027 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
2028 return mesh_send_action(ni, m);
2030 vap->iv_stats.is_tx_nobuf++;
2031 ieee80211_free_node(ni);
2037 mesh_send_action_meshpeering_close(struct ieee80211_node *ni,
2038 int category, int action, void *args0)
2040 struct ieee80211vap *vap = ni->ni_vap;
2041 struct ieee80211com *ic = ni->ni_ic;
2042 uint16_t *args = args0;
2046 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
2047 "send PEER CLOSE action: localid 0x%x, peerid 0x%x reason %d",
2048 args[0], args[1], args[2]);
2050 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
2051 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
2052 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
2053 ieee80211_ref_node(ni);
2055 m = ieee80211_getmgtframe(&frm,
2056 ic->ic_headroom + sizeof(struct ieee80211_frame),
2057 sizeof(uint16_t) /* action+category */
2058 + sizeof(uint16_t) /* reason code */
2059 + 2 + IEEE80211_MESHID_LEN
2060 + sizeof(struct ieee80211_meshpeer_ie)
2064 * mesh peer close action frame format:
2069 * [tlv] mesh peer link mgmt
2073 ADDSHORT(frm, args[2]); /* reason code */
2074 frm = ieee80211_add_meshid(frm, vap);
2075 frm = ieee80211_add_meshpeer(frm,
2076 IEEE80211_MESH_PEER_LINK_CLOSE,
2077 args[0], args[1], args[2]);
2078 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
2079 return mesh_send_action(ni, m);
2081 vap->iv_stats.is_tx_nobuf++;
2082 ieee80211_free_node(ni);
2088 mesh_send_action_meshlink_request(struct ieee80211_node *ni,
2089 int category, int action, void *arg0)
2091 struct ieee80211vap *vap = ni->ni_vap;
2092 struct ieee80211com *ic = ni->ni_ic;
2096 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
2097 "%s", "send LINK METRIC REQUEST action");
2099 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
2100 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
2101 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
2102 ieee80211_ref_node(ni);
2104 m = ieee80211_getmgtframe(&frm,
2105 ic->ic_headroom + sizeof(struct ieee80211_frame),
2106 sizeof(uint16_t) /* action+category */
2110 * mesh link metric request
2116 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
2117 return mesh_send_action(ni, m);
2119 vap->iv_stats.is_tx_nobuf++;
2120 ieee80211_free_node(ni);
2126 mesh_send_action_meshlink_reply(struct ieee80211_node *ni,
2127 int category, int action, void *args0)
2129 struct ieee80211vap *vap = ni->ni_vap;
2130 struct ieee80211com *ic = ni->ni_ic;
2131 uint32_t *metric = args0;
2135 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni,
2136 "send LINK METRIC REPLY action: metric 0x%x", *metric);
2138 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
2139 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
2140 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
2141 ieee80211_ref_node(ni);
2143 m = ieee80211_getmgtframe(&frm,
2144 ic->ic_headroom + sizeof(struct ieee80211_frame),
2145 sizeof(uint16_t) /* action+category */
2146 + sizeof(struct ieee80211_meshlmetric_ie)
2150 * mesh link metric reply
2153 * [tlv] mesh link metric
2157 frm = ieee80211_add_meshlmetric(frm, *metric);
2158 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
2159 return mesh_send_action(ni, m);
2161 vap->iv_stats.is_tx_nobuf++;
2162 ieee80211_free_node(ni);
2168 mesh_peer_timeout_setup(struct ieee80211_node *ni)
2170 switch (ni->ni_mlstate) {
2171 case IEEE80211_NODE_MESH_HOLDING:
2172 ni->ni_mltval = ieee80211_mesh_holdingtimeout;
2174 case IEEE80211_NODE_MESH_CONFIRMRCV:
2175 ni->ni_mltval = ieee80211_mesh_confirmtimeout;
2177 case IEEE80211_NODE_MESH_IDLE:
2181 ni->ni_mltval = ieee80211_mesh_retrytimeout;
2185 callout_reset(&ni->ni_mltimer, ni->ni_mltval,
2186 mesh_peer_timeout_cb, ni);
2190 * Same as above but backoffs timer statisically 50%.
2193 mesh_peer_timeout_backoff(struct ieee80211_node *ni)
2198 ni->ni_mltval += r % ni->ni_mltval;
2199 callout_reset(&ni->ni_mltimer, ni->ni_mltval, mesh_peer_timeout_cb,
2203 static __inline void
2204 mesh_peer_timeout_stop(struct ieee80211_node *ni)
2206 callout_drain(&ni->ni_mltimer);
2210 * Mesh Peer Link Management FSM timeout handling.
2213 mesh_peer_timeout_cb(void *arg)
2215 struct ieee80211_node *ni = (struct ieee80211_node *)arg;
2218 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_MESH,
2219 ni, "mesh link timeout, state %d, retry counter %d",
2220 ni->ni_mlstate, ni->ni_mlrcnt);
2222 switch (ni->ni_mlstate) {
2223 case IEEE80211_NODE_MESH_IDLE:
2224 case IEEE80211_NODE_MESH_ESTABLISHED:
2226 case IEEE80211_NODE_MESH_OPENSNT:
2227 case IEEE80211_NODE_MESH_OPENRCV:
2228 if (ni->ni_mlrcnt == ieee80211_mesh_maxretries) {
2229 args[0] = ni->ni_mlpid;
2230 args[2] = IEEE80211_REASON_MESH_MAX_RETRIES;
2231 ieee80211_send_action(ni,
2232 IEEE80211_ACTION_CAT_MESHPEERING,
2233 IEEE80211_ACTION_MESHPEERING_CLOSE, args);
2235 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
2236 mesh_peer_timeout_setup(ni);
2238 args[0] = ni->ni_mlpid;
2239 ieee80211_send_action(ni,
2240 IEEE80211_ACTION_CAT_MESHPEERING,
2241 IEEE80211_ACTION_MESHPEERING_OPEN, args);
2243 mesh_peer_timeout_backoff(ni);
2246 case IEEE80211_NODE_MESH_CONFIRMRCV:
2247 if (ni->ni_mlrcnt == ieee80211_mesh_maxretries) {
2248 args[0] = ni->ni_mlpid;
2249 args[2] = IEEE80211_REASON_MESH_CONFIRM_TIMEOUT;
2250 ieee80211_send_action(ni,
2251 IEEE80211_ACTION_CAT_MESHPEERING,
2252 IEEE80211_ACTION_MESHPEERING_CLOSE, args);
2254 mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING);
2255 mesh_peer_timeout_setup(ni);
2258 mesh_peer_timeout_setup(ni);
2261 case IEEE80211_NODE_MESH_HOLDING:
2262 mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE);
2268 mesh_verify_meshid(struct ieee80211vap *vap, const uint8_t *ie)
2270 struct ieee80211_mesh_state *ms = vap->iv_mesh;
2272 if (ie == NULL || ie[1] != ms->ms_idlen)
2274 return memcmp(ms->ms_id, ie + 2, ms->ms_idlen);
2278 * Check if we are using the same algorithms for this mesh.
2281 mesh_verify_meshconf(struct ieee80211vap *vap, const uint8_t *ie)
2283 const struct ieee80211_meshconf_ie *meshconf =
2284 (const struct ieee80211_meshconf_ie *) ie;
2285 const struct ieee80211_mesh_state *ms = vap->iv_mesh;
2287 if (meshconf == NULL)
2289 if (meshconf->conf_pselid != ms->ms_ppath->mpp_ie) {
2290 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2291 "unknown path selection algorithm: 0x%x\n",
2292 meshconf->conf_pselid);
2295 if (meshconf->conf_pmetid != ms->ms_pmetric->mpm_ie) {
2296 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2297 "unknown path metric algorithm: 0x%x\n",
2298 meshconf->conf_pmetid);
2301 if (meshconf->conf_ccid != 0) {
2302 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2303 "unknown congestion control algorithm: 0x%x\n",
2304 meshconf->conf_ccid);
2307 if (meshconf->conf_syncid != IEEE80211_MESHCONF_SYNC_NEIGHOFF) {
2308 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2309 "unknown sync algorithm: 0x%x\n",
2310 meshconf->conf_syncid);
2313 if (meshconf->conf_authid != 0) {
2314 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2315 "unknown auth auth algorithm: 0x%x\n",
2316 meshconf->conf_pselid);
2319 /* Not accepting peers */
2320 if (!(meshconf->conf_cap & IEEE80211_MESHCONF_CAP_AP)) {
2321 IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH,
2322 "not accepting peers: 0x%x\n", meshconf->conf_cap);
2329 mesh_verify_meshpeer(struct ieee80211vap *vap, uint8_t subtype,
2332 const struct ieee80211_meshpeer_ie *meshpeer =
2333 (const struct ieee80211_meshpeer_ie *) ie;
2335 if (meshpeer == NULL || meshpeer->peer_len < 6 ||
2336 meshpeer->peer_len > 10)
2339 case IEEE80211_MESH_PEER_LINK_OPEN:
2340 if (meshpeer->peer_len != 6)
2343 case IEEE80211_MESH_PEER_LINK_CONFIRM:
2344 if (meshpeer->peer_len != 8)
2347 case IEEE80211_MESH_PEER_LINK_CLOSE:
2348 if (meshpeer->peer_len < 8)
2350 if (meshpeer->peer_len == 8 && meshpeer->peer_linkid != 0)
2352 if (meshpeer->peer_rcode == 0)
2360 * Add a Mesh ID IE to a frame.
2363 ieee80211_add_meshid(uint8_t *frm, struct ieee80211vap *vap)
2365 struct ieee80211_mesh_state *ms = vap->iv_mesh;
2367 KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a mbss vap"));
2369 *frm++ = IEEE80211_ELEMID_MESHID;
2370 *frm++ = ms->ms_idlen;
2371 memcpy(frm, ms->ms_id, ms->ms_idlen);
2372 return frm + ms->ms_idlen;
2376 * Add a Mesh Configuration IE to a frame.
2377 * For now just use HWMP routing, Airtime link metric, Null Congestion
2378 * Signaling, Null Sync Protocol and Null Authentication.
2381 ieee80211_add_meshconf(uint8_t *frm, struct ieee80211vap *vap)
2383 const struct ieee80211_mesh_state *ms = vap->iv_mesh;
2385 KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap"));
2387 *frm++ = IEEE80211_ELEMID_MESHCONF;
2388 *frm++ = sizeof(struct ieee80211_meshconf_ie) - 2;
2389 *frm++ = ms->ms_ppath->mpp_ie; /* path selection */
2390 *frm++ = ms->ms_pmetric->mpm_ie; /* link metric */
2391 *frm++ = IEEE80211_MESHCONF_CC_DISABLED;
2392 *frm++ = IEEE80211_MESHCONF_SYNC_NEIGHOFF;
2393 *frm++ = IEEE80211_MESHCONF_AUTH_DISABLED;
2394 /* NB: set the number of neighbors before the rest */
2395 *frm = (ms->ms_neighbors > 15 ? 15 : ms->ms_neighbors) << 1;
2396 if (ms->ms_flags & IEEE80211_MESHFLAGS_PORTAL)
2397 *frm |= IEEE80211_MESHCONF_FORM_MP;
2399 if (ms->ms_flags & IEEE80211_MESHFLAGS_AP)
2400 *frm |= IEEE80211_MESHCONF_CAP_AP;
2401 if (ms->ms_flags & IEEE80211_MESHFLAGS_FWD)
2402 *frm |= IEEE80211_MESHCONF_CAP_FWRD;
2408 * Add a Mesh Peer Management IE to a frame.
2411 ieee80211_add_meshpeer(uint8_t *frm, uint8_t subtype, uint16_t localid,
2412 uint16_t peerid, uint16_t reason)
2414 /* XXX change for AH */
2415 static const uint8_t meshpeerproto[4] = IEEE80211_MESH_PEER_PROTO;
2417 KASSERT(localid != 0, ("localid == 0"));
2419 *frm++ = IEEE80211_ELEMID_MESHPEER;
2421 case IEEE80211_MESH_PEER_LINK_OPEN:
2422 *frm++ = 6; /* length */
2423 memcpy(frm, meshpeerproto, 4);
2425 ADDSHORT(frm, localid); /* local ID */
2427 case IEEE80211_MESH_PEER_LINK_CONFIRM:
2428 KASSERT(peerid != 0, ("sending peer confirm without peer id"));
2429 *frm++ = 8; /* length */
2430 memcpy(frm, meshpeerproto, 4);
2432 ADDSHORT(frm, localid); /* local ID */
2433 ADDSHORT(frm, peerid); /* peer ID */
2435 case IEEE80211_MESH_PEER_LINK_CLOSE:
2437 *frm++ = 10; /* length */
2439 *frm++ = 8; /* length */
2440 memcpy(frm, meshpeerproto, 4);
2442 ADDSHORT(frm, localid); /* local ID */
2444 ADDSHORT(frm, peerid); /* peer ID */
2445 ADDSHORT(frm, reason);
2452 * Compute an Airtime Link Metric for the link with this node.
2454 * Based on Draft 3.0 spec (11B.10, p.149).
2457 * Max 802.11s overhead.
2459 #define IEEE80211_MESH_MAXOVERHEAD \
2460 (sizeof(struct ieee80211_qosframe_addr4) \
2461 + sizeof(struct ieee80211_meshcntl_ae11) \
2462 + sizeof(struct llc) \
2463 + IEEE80211_ADDR_LEN \
2464 + IEEE80211_WEP_IVLEN \
2465 + IEEE80211_WEP_KIDLEN \
2466 + IEEE80211_WEP_CRCLEN \
2467 + IEEE80211_WEP_MICLEN \
2468 + IEEE80211_CRC_LEN)
2470 mesh_airtime_calc(struct ieee80211_node *ni)
2473 #define S_FACTOR (2 * M_BITS)
2474 struct ieee80211com *ic = ni->ni_ic;
2475 struct ifnet *ifp = ni->ni_vap->iv_ifp;
2476 const static int nbits = 8192 << M_BITS;
2477 uint32_t overhead, rate, errrate;
2480 /* Time to transmit a frame */
2481 rate = ni->ni_txrate;
2482 overhead = ieee80211_compute_duration(ic->ic_rt,
2483 ifp->if_mtu + IEEE80211_MESH_MAXOVERHEAD, rate, 0) << M_BITS;
2484 /* Error rate in percentage */
2485 /* XXX assuming small failures are ok */
2486 errrate = (((ifp->if_oerrors +
2487 ifp->if_ierrors) / 100) << M_BITS) / 100;
2488 res = (overhead + (nbits / rate)) *
2489 ((1 << S_FACTOR) / ((1 << M_BITS) - errrate));
2491 return (uint32_t)(res >> S_FACTOR);
2497 * Add a Mesh Link Metric report IE to a frame.
2500 ieee80211_add_meshlmetric(uint8_t *frm, uint32_t metric)
2502 *frm++ = IEEE80211_ELEMID_MESHLINK;
2504 ADDWORD(frm, metric);
2511 * Initialize any mesh-specific node state.
2514 ieee80211_mesh_node_init(struct ieee80211vap *vap, struct ieee80211_node *ni)
2516 ni->ni_flags |= IEEE80211_NODE_QOS;
2517 callout_init(&ni->ni_mltimer, CALLOUT_MPSAFE);
2521 * Cleanup any mesh-specific node state.
2524 ieee80211_mesh_node_cleanup(struct ieee80211_node *ni)
2526 struct ieee80211vap *vap = ni->ni_vap;
2527 struct ieee80211_mesh_state *ms = vap->iv_mesh;
2529 callout_drain(&ni->ni_mltimer);
2530 /* NB: short-circuit callbacks after mesh_vdetach */
2531 if (vap->iv_mesh != NULL)
2532 ms->ms_ppath->mpp_peerdown(ni);
2536 ieee80211_parse_meshid(struct ieee80211_node *ni, const uint8_t *ie)
2538 ni->ni_meshidlen = ie[1];
2539 memcpy(ni->ni_meshid, ie + 2, ie[1]);
2543 * Setup mesh-specific node state on neighbor discovery.
2546 ieee80211_mesh_init_neighbor(struct ieee80211_node *ni,
2547 const struct ieee80211_frame *wh,
2548 const struct ieee80211_scanparams *sp)
2550 ieee80211_parse_meshid(ni, sp->meshid);
2554 ieee80211_mesh_update_beacon(struct ieee80211vap *vap,
2555 struct ieee80211_beacon_offsets *bo)
2557 KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap"));
2559 if (isset(bo->bo_flags, IEEE80211_BEACON_MESHCONF)) {
2560 (void)ieee80211_add_meshconf(bo->bo_meshconf, vap);
2561 clrbit(bo->bo_flags, IEEE80211_BEACON_MESHCONF);
2566 mesh_ioctl_get80211(struct ieee80211vap *vap, struct ieee80211req *ireq)
2568 struct ieee80211_mesh_state *ms = vap->iv_mesh;
2569 uint8_t tmpmeshid[IEEE80211_NWID_LEN];
2570 struct ieee80211_mesh_route *rt;
2571 struct ieee80211req_mesh_route *imr;
2576 if (vap->iv_opmode != IEEE80211_M_MBSS)
2580 switch (ireq->i_type) {
2581 case IEEE80211_IOC_MESH_ID:
2582 ireq->i_len = ms->ms_idlen;
2583 memcpy(tmpmeshid, ms->ms_id, ireq->i_len);
2584 error = copyout(tmpmeshid, ireq->i_data, ireq->i_len);
2586 case IEEE80211_IOC_MESH_AP:
2587 ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_AP) != 0;
2589 case IEEE80211_IOC_MESH_FWRD:
2590 ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_FWD) != 0;
2592 case IEEE80211_IOC_MESH_TTL:
2593 ireq->i_val = ms->ms_ttl;
2595 case IEEE80211_IOC_MESH_RTCMD:
2596 switch (ireq->i_val) {
2597 case IEEE80211_MESH_RTCMD_LIST:
2600 TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) {
2601 len += sizeof(*imr);
2604 if (len > ireq->i_len || ireq->i_len < sizeof(*imr)) {
2610 p = malloc(len, M_TEMP, M_NOWAIT | M_ZERO);
2615 TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) {
2618 imr = (struct ieee80211req_mesh_route *)
2620 imr->imr_flags = rt->rt_flags;
2621 IEEE80211_ADDR_COPY(imr->imr_dest,
2623 IEEE80211_ADDR_COPY(imr->imr_nexthop,
2625 imr->imr_metric = rt->rt_metric;
2626 imr->imr_nhops = rt->rt_nhops;
2627 imr->imr_lifetime = rt->rt_lifetime;
2628 imr->imr_lastmseq = rt->rt_lastmseq;
2629 off += sizeof(*imr);
2632 error = copyout(p, (uint8_t *)ireq->i_data,
2636 case IEEE80211_MESH_RTCMD_FLUSH:
2637 case IEEE80211_MESH_RTCMD_ADD:
2638 case IEEE80211_MESH_RTCMD_DELETE:
2644 case IEEE80211_IOC_MESH_PR_METRIC:
2645 len = strlen(ms->ms_pmetric->mpm_descr);
2646 if (ireq->i_len < len)
2649 error = copyout(ms->ms_pmetric->mpm_descr,
2650 (uint8_t *)ireq->i_data, len);
2652 case IEEE80211_IOC_MESH_PR_PATH:
2653 len = strlen(ms->ms_ppath->mpp_descr);
2654 if (ireq->i_len < len)
2657 error = copyout(ms->ms_ppath->mpp_descr,
2658 (uint8_t *)ireq->i_data, len);
2666 IEEE80211_IOCTL_GET(mesh, mesh_ioctl_get80211);
2669 mesh_ioctl_set80211(struct ieee80211vap *vap, struct ieee80211req *ireq)
2671 struct ieee80211_mesh_state *ms = vap->iv_mesh;
2672 uint8_t tmpmeshid[IEEE80211_NWID_LEN];
2673 uint8_t tmpaddr[IEEE80211_ADDR_LEN];
2674 char tmpproto[IEEE80211_MESH_PROTO_DSZ];
2677 if (vap->iv_opmode != IEEE80211_M_MBSS)
2681 switch (ireq->i_type) {
2682 case IEEE80211_IOC_MESH_ID:
2683 if (ireq->i_val != 0 || ireq->i_len > IEEE80211_MESHID_LEN)
2685 error = copyin(ireq->i_data, tmpmeshid, ireq->i_len);
2688 memset(ms->ms_id, 0, IEEE80211_NWID_LEN);
2689 ms->ms_idlen = ireq->i_len;
2690 memcpy(ms->ms_id, tmpmeshid, ireq->i_len);
2693 case IEEE80211_IOC_MESH_AP:
2695 ms->ms_flags |= IEEE80211_MESHFLAGS_AP;
2697 ms->ms_flags &= ~IEEE80211_MESHFLAGS_AP;
2700 case IEEE80211_IOC_MESH_FWRD:
2702 ms->ms_flags |= IEEE80211_MESHFLAGS_FWD;
2704 ms->ms_flags &= ~IEEE80211_MESHFLAGS_FWD;
2706 case IEEE80211_IOC_MESH_TTL:
2707 ms->ms_ttl = (uint8_t) ireq->i_val;
2709 case IEEE80211_IOC_MESH_RTCMD:
2710 switch (ireq->i_val) {
2711 case IEEE80211_MESH_RTCMD_LIST:
2713 case IEEE80211_MESH_RTCMD_FLUSH:
2714 ieee80211_mesh_rt_flush(vap);
2716 case IEEE80211_MESH_RTCMD_ADD:
2717 if (IEEE80211_ADDR_EQ(vap->iv_myaddr, ireq->i_data) ||
2718 IEEE80211_ADDR_EQ(broadcastaddr, ireq->i_data))
2720 error = copyin(ireq->i_data, &tmpaddr,
2721 IEEE80211_ADDR_LEN);
2723 ieee80211_mesh_discover(vap, tmpaddr, NULL);
2725 case IEEE80211_MESH_RTCMD_DELETE:
2726 ieee80211_mesh_rt_del(vap, ireq->i_data);
2732 case IEEE80211_IOC_MESH_PR_METRIC:
2733 error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto));
2735 error = mesh_select_proto_metric(vap, tmpproto);
2740 case IEEE80211_IOC_MESH_PR_PATH:
2741 error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto));
2743 error = mesh_select_proto_path(vap, tmpproto);
2753 IEEE80211_IOCTL_SET(mesh, mesh_ioctl_set80211);