1195618Srpaulo/*- 2195618Srpaulo * Copyright (c) 2009 The FreeBSD Foundation 3195618Srpaulo * All rights reserved. 4195618Srpaulo * 5195618Srpaulo * This software was developed by Rui Paulo under sponsorship from the 6195618Srpaulo * FreeBSD Foundation. 7195618Srpaulo * 8195618Srpaulo * Redistribution and use in source and binary forms, with or without 9195618Srpaulo * modification, are permitted provided that the following conditions 10195618Srpaulo * are met: 11195618Srpaulo * 1. Redistributions of source code must retain the above copyright 12195618Srpaulo * notice, this list of conditions and the following disclaimer. 13195618Srpaulo * 2. Redistributions in binary form must reproduce the above copyright 14195618Srpaulo * notice, this list of conditions and the following disclaimer in the 15195618Srpaulo * documentation and/or other materials provided with the distribution. 16195618Srpaulo * 17195618Srpaulo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18195618Srpaulo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19195618Srpaulo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20195618Srpaulo * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21195618Srpaulo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22195618Srpaulo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23195618Srpaulo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24195618Srpaulo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25195618Srpaulo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26195618Srpaulo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27195618Srpaulo * SUCH DAMAGE. 28195618Srpaulo */ 29195618Srpaulo#include <sys/cdefs.h> 30195618Srpaulo#ifdef __FreeBSD__ 31195618Srpaulo__FBSDID("$FreeBSD: stable/10/sys/net80211/ieee80211_mesh.c 322061 2017-08-04 20:24:23Z pfg $"); 32195618Srpaulo#endif 33195618Srpaulo 34195618Srpaulo/* 35195618Srpaulo * IEEE 802.11s Mesh Point (MBSS) support. 36195618Srpaulo * 37195618Srpaulo * Based on March 2009, D3.0 802.11s draft spec. 38195618Srpaulo */ 39195618Srpaulo#include "opt_inet.h" 40195618Srpaulo#include "opt_wlan.h" 41195618Srpaulo 42195618Srpaulo#include <sys/param.h> 43195618Srpaulo#include <sys/systm.h> 44195618Srpaulo#include <sys/mbuf.h> 45195618Srpaulo#include <sys/malloc.h> 46195618Srpaulo#include <sys/kernel.h> 47195618Srpaulo 48195618Srpaulo#include <sys/socket.h> 49195618Srpaulo#include <sys/sockio.h> 50195618Srpaulo#include <sys/endian.h> 51195618Srpaulo#include <sys/errno.h> 52195618Srpaulo#include <sys/proc.h> 53195618Srpaulo#include <sys/sysctl.h> 54195618Srpaulo 55246511Smonthadar#include <net/bpf.h> 56195618Srpaulo#include <net/if.h> 57195618Srpaulo#include <net/if_media.h> 58195618Srpaulo#include <net/if_llc.h> 59195618Srpaulo#include <net/ethernet.h> 60195618Srpaulo 61195618Srpaulo#include <net80211/ieee80211_var.h> 62195618Srpaulo#include <net80211/ieee80211_action.h> 63246537Sadrian#ifdef IEEE80211_SUPPORT_SUPERG 64246537Sadrian#include <net80211/ieee80211_superg.h> 65246537Sadrian#endif 66195618Srpaulo#include <net80211/ieee80211_input.h> 67195618Srpaulo#include <net80211/ieee80211_mesh.h> 68195618Srpaulo 69195784Srpaulostatic void mesh_rt_flush_invalid(struct ieee80211vap *); 70195618Srpaulostatic int mesh_select_proto_path(struct ieee80211vap *, const char *); 71195618Srpaulostatic int mesh_select_proto_metric(struct ieee80211vap *, const char *); 72195618Srpaulostatic void mesh_vattach(struct ieee80211vap *); 73195618Srpaulostatic int mesh_newstate(struct ieee80211vap *, enum ieee80211_state, int); 74195784Srpaulostatic void mesh_rt_cleanup_cb(void *); 75246506Smonthadarstatic void mesh_gatemode_setup(struct ieee80211vap *); 76246506Smonthadarstatic void mesh_gatemode_cb(void *); 77195661Srpaulostatic void mesh_linkchange(struct ieee80211_node *, 78195661Srpaulo enum ieee80211_mesh_mlstate); 79195618Srpaulostatic void mesh_checkid(void *, struct ieee80211_node *); 80195618Srpaulostatic uint32_t mesh_generateid(struct ieee80211vap *); 81195618Srpaulostatic int mesh_checkpseq(struct ieee80211vap *, 82195618Srpaulo const uint8_t [IEEE80211_ADDR_LEN], uint32_t); 83246511Smonthadarstatic void mesh_transmit_to_gate(struct ieee80211vap *, struct mbuf *, 84246511Smonthadar struct ieee80211_mesh_route *); 85195618Srpaulostatic void mesh_forward(struct ieee80211vap *, struct mbuf *, 86195618Srpaulo const struct ieee80211_meshcntl *); 87195618Srpaulostatic int mesh_input(struct ieee80211_node *, struct mbuf *, int, int); 88195618Srpaulostatic void mesh_recv_mgmt(struct ieee80211_node *, struct mbuf *, int, 89195618Srpaulo int, int); 90205277Srpaulostatic void mesh_recv_ctl(struct ieee80211_node *, struct mbuf *, int); 91195618Srpaulostatic void mesh_peer_timeout_setup(struct ieee80211_node *); 92195618Srpaulostatic void mesh_peer_timeout_backoff(struct ieee80211_node *); 93195618Srpaulostatic void mesh_peer_timeout_cb(void *); 94195618Srpaulostatic __inline void 95195618Srpaulo mesh_peer_timeout_stop(struct ieee80211_node *); 96195618Srpaulostatic int mesh_verify_meshid(struct ieee80211vap *, const uint8_t *); 97195618Srpaulostatic int mesh_verify_meshconf(struct ieee80211vap *, const uint8_t *); 98197413Srpaulostatic int mesh_verify_meshpeer(struct ieee80211vap *, uint8_t, 99197413Srpaulo const uint8_t *); 100195618Srpaulouint32_t mesh_airtime_calc(struct ieee80211_node *); 101195618Srpaulo 102195618Srpaulo/* 103195618Srpaulo * Timeout values come from the specification and are in milliseconds. 104195618Srpaulo */ 105227309Sedstatic SYSCTL_NODE(_net_wlan, OID_AUTO, mesh, CTLFLAG_RD, 0, 106195618Srpaulo "IEEE 802.11s parameters"); 107246506Smonthadarstatic int ieee80211_mesh_gateint = -1; 108246506SmonthadarSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, gateint, CTLTYPE_INT | CTLFLAG_RW, 109246506Smonthadar &ieee80211_mesh_gateint, 0, ieee80211_sysctl_msecs_ticks, "I", 110246506Smonthadar "mesh gate interval (ms)"); 111195618Srpaulostatic int ieee80211_mesh_retrytimeout = -1; 112195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, retrytimeout, CTLTYPE_INT | CTLFLAG_RW, 113195618Srpaulo &ieee80211_mesh_retrytimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 114195618Srpaulo "Retry timeout (msec)"); 115195618Srpaulostatic int ieee80211_mesh_holdingtimeout = -1; 116246537Sadrian 117195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, holdingtimeout, CTLTYPE_INT | CTLFLAG_RW, 118195618Srpaulo &ieee80211_mesh_holdingtimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 119195618Srpaulo "Holding state timeout (msec)"); 120195618Srpaulostatic int ieee80211_mesh_confirmtimeout = -1; 121195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, confirmtimeout, CTLTYPE_INT | CTLFLAG_RW, 122195618Srpaulo &ieee80211_mesh_confirmtimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 123195618Srpaulo "Confirm state timeout (msec)"); 124246497Smonthadarstatic int ieee80211_mesh_backofftimeout = -1; 125246497SmonthadarSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, backofftimeout, CTLTYPE_INT | CTLFLAG_RW, 126246497Smonthadar &ieee80211_mesh_backofftimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 127246497Smonthadar "Backoff timeout (msec). This is to throutles peering forever when " 128281480Seadler "not receiving answer or is rejected by a neighbor"); 129195618Srpaulostatic int ieee80211_mesh_maxretries = 2; 130273736ShselaskySYSCTL_INT(_net_wlan_mesh, OID_AUTO, maxretries, CTLFLAG_RW, 131195618Srpaulo &ieee80211_mesh_maxretries, 0, 132195618Srpaulo "Maximum retries during peer link establishment"); 133246497Smonthadarstatic int ieee80211_mesh_maxholding = 2; 134273736ShselaskySYSCTL_INT(_net_wlan_mesh, OID_AUTO, maxholding, CTLFLAG_RW, 135246497Smonthadar &ieee80211_mesh_maxholding, 0, 136246497Smonthadar "Maximum times we are allowed to transition to HOLDING state before " 137246497Smonthadar "backinoff during peer link establishment"); 138195618Srpaulo 139195618Srpaulostatic const uint8_t broadcastaddr[IEEE80211_ADDR_LEN] = 140195618Srpaulo { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 141195618Srpaulo 142195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_open; 143195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_confirm; 144195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_close; 145232479Sadrianstatic ieee80211_recv_action_func mesh_recv_action_meshlmetric; 146246506Smonthadarstatic ieee80211_recv_action_func mesh_recv_action_meshgate; 147195618Srpaulo 148195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_open; 149195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_confirm; 150195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_close; 151232479Sadrianstatic ieee80211_send_action_func mesh_send_action_meshlmetric; 152246506Smonthadarstatic ieee80211_send_action_func mesh_send_action_meshgate; 153195618Srpaulo 154195618Srpaulostatic const struct ieee80211_mesh_proto_metric mesh_metric_airtime = { 155195618Srpaulo .mpm_descr = "AIRTIME", 156197975Srpaulo .mpm_ie = IEEE80211_MESHCONF_METRIC_AIRTIME, 157195618Srpaulo .mpm_metric = mesh_airtime_calc, 158195618Srpaulo}; 159195618Srpaulo 160195618Srpaulostatic struct ieee80211_mesh_proto_path mesh_proto_paths[4]; 161195618Srpaulostatic struct ieee80211_mesh_proto_metric mesh_proto_metrics[4]; 162195618Srpaulo 163234877Smonthadar#define RT_ENTRY_LOCK(rt) mtx_lock(&(rt)->rt_lock) 164234877Smonthadar#define RT_ENTRY_LOCK_ASSERT(rt) mtx_assert(&(rt)->rt_lock, MA_OWNED) 165234877Smonthadar#define RT_ENTRY_UNLOCK(rt) mtx_unlock(&(rt)->rt_lock) 166234877Smonthadar 167195618Srpaulo#define MESH_RT_LOCK(ms) mtx_lock(&(ms)->ms_rt_lock) 168195784Srpaulo#define MESH_RT_LOCK_ASSERT(ms) mtx_assert(&(ms)->ms_rt_lock, MA_OWNED) 169195618Srpaulo#define MESH_RT_UNLOCK(ms) mtx_unlock(&(ms)->ms_rt_lock) 170195618Srpaulo 171232625SadrianMALLOC_DEFINE(M_80211_MESH_PREQ, "80211preq", "802.11 MESH Path Request frame"); 172232625SadrianMALLOC_DEFINE(M_80211_MESH_PREP, "80211prep", "802.11 MESH Path Reply frame"); 173232625SadrianMALLOC_DEFINE(M_80211_MESH_PERR, "80211perr", "802.11 MESH Path Error frame"); 174232625Sadrian 175234877Smonthadar/* The longer one of the lifetime should be stored as new lifetime */ 176234877Smonthadar#define MESH_ROUTE_LIFETIME_MAX(a, b) (a > b ? a : b) 177234877Smonthadar 178246508SmonthadarMALLOC_DEFINE(M_80211_MESH_RT, "80211mesh_rt", "802.11s routing table"); 179246508SmonthadarMALLOC_DEFINE(M_80211_MESH_GT_RT, "80211mesh_gt", "802.11s known gates table"); 180195618Srpaulo 181195618Srpaulo/* 182195618Srpaulo * Helper functions to manipulate the Mesh routing table. 183195618Srpaulo */ 184195784Srpaulo 185195784Srpaulostatic struct ieee80211_mesh_route * 186195784Srpaulomesh_rt_find_locked(struct ieee80211_mesh_state *ms, 187195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 188195784Srpaulo{ 189195784Srpaulo struct ieee80211_mesh_route *rt; 190195784Srpaulo 191195784Srpaulo MESH_RT_LOCK_ASSERT(ms); 192195784Srpaulo 193195784Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 194195784Srpaulo if (IEEE80211_ADDR_EQ(dest, rt->rt_dest)) 195195784Srpaulo return rt; 196195784Srpaulo } 197195784Srpaulo return NULL; 198195784Srpaulo} 199195784Srpaulo 200195784Srpaulostatic struct ieee80211_mesh_route * 201234894Smonthadarmesh_rt_add_locked(struct ieee80211vap *vap, 202195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 203195784Srpaulo{ 204234894Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 205195784Srpaulo struct ieee80211_mesh_route *rt; 206195784Srpaulo 207195784Srpaulo KASSERT(!IEEE80211_ADDR_EQ(broadcastaddr, dest), 208195784Srpaulo ("%s: adding broadcast to the routing table", __func__)); 209195784Srpaulo 210195784Srpaulo MESH_RT_LOCK_ASSERT(ms); 211195784Srpaulo 212195784Srpaulo rt = malloc(ALIGN(sizeof(struct ieee80211_mesh_route)) + 213195784Srpaulo ms->ms_ppath->mpp_privlen, M_80211_MESH_RT, M_NOWAIT | M_ZERO); 214195784Srpaulo if (rt != NULL) { 215234894Smonthadar rt->rt_vap = vap; 216195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_dest, dest); 217195784Srpaulo rt->rt_priv = (void *)ALIGN(&rt[1]); 218234877Smonthadar mtx_init(&rt->rt_lock, "MBSS_RT", "802.11s route entry", MTX_DEF); 219314667Savg callout_init(&rt->rt_discovery, 1); 220234877Smonthadar rt->rt_updtime = ticks; /* create time */ 221195784Srpaulo TAILQ_INSERT_TAIL(&ms->ms_routes, rt, rt_next); 222195784Srpaulo } 223195784Srpaulo return rt; 224195784Srpaulo} 225195784Srpaulo 226195618Srpaulostruct ieee80211_mesh_route * 227195618Srpauloieee80211_mesh_rt_find(struct ieee80211vap *vap, 228195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 229195618Srpaulo{ 230195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 231195618Srpaulo struct ieee80211_mesh_route *rt; 232195618Srpaulo 233195618Srpaulo MESH_RT_LOCK(ms); 234195784Srpaulo rt = mesh_rt_find_locked(ms, dest); 235195618Srpaulo MESH_RT_UNLOCK(ms); 236195784Srpaulo return rt; 237195618Srpaulo} 238195618Srpaulo 239195618Srpaulostruct ieee80211_mesh_route * 240195618Srpauloieee80211_mesh_rt_add(struct ieee80211vap *vap, 241195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 242195618Srpaulo{ 243195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 244195618Srpaulo struct ieee80211_mesh_route *rt; 245195618Srpaulo 246195618Srpaulo KASSERT(ieee80211_mesh_rt_find(vap, dest) == NULL, 247195618Srpaulo ("%s: duplicate entry in the routing table", __func__)); 248195618Srpaulo KASSERT(!IEEE80211_ADDR_EQ(vap->iv_myaddr, dest), 249195618Srpaulo ("%s: adding self to the routing table", __func__)); 250195618Srpaulo 251195618Srpaulo MESH_RT_LOCK(ms); 252234894Smonthadar rt = mesh_rt_add_locked(vap, dest); 253195618Srpaulo MESH_RT_UNLOCK(ms); 254195618Srpaulo return rt; 255195618Srpaulo} 256195618Srpaulo 257195784Srpaulo/* 258234877Smonthadar * Update the route lifetime and returns the updated lifetime. 259234877Smonthadar * If new_lifetime is zero and route is timedout it will be invalidated. 260234877Smonthadar * new_lifetime is in msec 261234877Smonthadar */ 262234877Smonthadarint 263234877Smonthadarieee80211_mesh_rt_update(struct ieee80211_mesh_route *rt, int new_lifetime) 264234877Smonthadar{ 265234877Smonthadar int timesince, now; 266234877Smonthadar uint32_t lifetime = 0; 267234877Smonthadar 268234881Smonthadar KASSERT(rt != NULL, ("route is NULL")); 269234881Smonthadar 270234877Smonthadar now = ticks; 271234877Smonthadar RT_ENTRY_LOCK(rt); 272234879Smonthadar 273234879Smonthadar /* dont clobber a proxy entry gated by us */ 274234879Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY && rt->rt_nhops == 0) { 275234879Smonthadar RT_ENTRY_UNLOCK(rt); 276234879Smonthadar return rt->rt_lifetime; 277234879Smonthadar } 278234879Smonthadar 279234877Smonthadar timesince = ticks_to_msecs(now - rt->rt_updtime); 280234877Smonthadar rt->rt_updtime = now; 281234877Smonthadar if (timesince >= rt->rt_lifetime) { 282234877Smonthadar if (new_lifetime != 0) { 283234877Smonthadar rt->rt_lifetime = new_lifetime; 284234877Smonthadar } 285234877Smonthadar else { 286234877Smonthadar rt->rt_flags &= ~IEEE80211_MESHRT_FLAGS_VALID; 287234877Smonthadar rt->rt_lifetime = 0; 288234877Smonthadar } 289234877Smonthadar } else { 290234877Smonthadar /* update what is left of lifetime */ 291234877Smonthadar rt->rt_lifetime = rt->rt_lifetime - timesince; 292234877Smonthadar rt->rt_lifetime = MESH_ROUTE_LIFETIME_MAX( 293234877Smonthadar new_lifetime, rt->rt_lifetime); 294234877Smonthadar } 295234877Smonthadar lifetime = rt->rt_lifetime; 296234877Smonthadar RT_ENTRY_UNLOCK(rt); 297234877Smonthadar 298234877Smonthadar return lifetime; 299234877Smonthadar} 300234877Smonthadar 301234877Smonthadar/* 302195784Srpaulo * Add a proxy route (as needed) for the specified destination. 303195784Srpaulo */ 304195618Srpaulovoid 305195784Srpauloieee80211_mesh_proxy_check(struct ieee80211vap *vap, 306195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 307195784Srpaulo{ 308195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 309195784Srpaulo struct ieee80211_mesh_route *rt; 310195784Srpaulo 311195784Srpaulo MESH_RT_LOCK(ms); 312195784Srpaulo rt = mesh_rt_find_locked(ms, dest); 313195784Srpaulo if (rt == NULL) { 314234894Smonthadar rt = mesh_rt_add_locked(vap, dest); 315195784Srpaulo if (rt == NULL) { 316195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 317195784Srpaulo "%s", "unable to add proxy entry"); 318195784Srpaulo vap->iv_stats.is_mesh_rtaddfailed++; 319195784Srpaulo } else { 320195908Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 321195908Srpaulo "%s", "add proxy entry"); 322234878Smonthadar IEEE80211_ADDR_COPY(rt->rt_mesh_gate, vap->iv_myaddr); 323195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr); 324195784Srpaulo rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID 325195784Srpaulo | IEEE80211_MESHRT_FLAGS_PROXY; 326195784Srpaulo } 327195784Srpaulo } else if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 328234878Smonthadar KASSERT(rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY, 329234878Smonthadar ("no proxy flag for poxy entry")); 330195784Srpaulo struct ieee80211com *ic = vap->iv_ic; 331195784Srpaulo /* 332195784Srpaulo * Fix existing entry created by received frames from 333195784Srpaulo * stations that have some memory of dest. We also 334195784Srpaulo * flush any frames held on the staging queue; delivering 335195784Srpaulo * them is too much trouble right now. 336195784Srpaulo */ 337195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 338195784Srpaulo "%s", "fix proxy entry"); 339195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr); 340195784Srpaulo rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID 341195784Srpaulo | IEEE80211_MESHRT_FLAGS_PROXY; 342195784Srpaulo /* XXX belongs in hwmp */ 343195784Srpaulo ieee80211_ageq_drain_node(&ic->ic_stageq, 344195784Srpaulo (void *)(uintptr_t) ieee80211_mac_hash(ic, dest)); 345195784Srpaulo /* XXX stat? */ 346195784Srpaulo } 347195784Srpaulo MESH_RT_UNLOCK(ms); 348195784Srpaulo} 349195784Srpaulo 350195784Srpaulostatic __inline void 351195784Srpaulomesh_rt_del(struct ieee80211_mesh_state *ms, struct ieee80211_mesh_route *rt) 352195784Srpaulo{ 353195784Srpaulo TAILQ_REMOVE(&ms->ms_routes, rt, rt_next); 354234877Smonthadar /* 355234877Smonthadar * Grab the lock before destroying it, to be sure no one else 356234877Smonthadar * is holding the route. 357234877Smonthadar */ 358234877Smonthadar RT_ENTRY_LOCK(rt); 359234894Smonthadar callout_drain(&rt->rt_discovery); 360234877Smonthadar mtx_destroy(&rt->rt_lock); 361195784Srpaulo free(rt, M_80211_MESH_RT); 362195784Srpaulo} 363195784Srpaulo 364195784Srpaulovoid 365195618Srpauloieee80211_mesh_rt_del(struct ieee80211vap *vap, 366195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 367195618Srpaulo{ 368195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 369195618Srpaulo struct ieee80211_mesh_route *rt, *next; 370195618Srpaulo 371195618Srpaulo MESH_RT_LOCK(ms); 372195618Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 373195618Srpaulo if (IEEE80211_ADDR_EQ(rt->rt_dest, dest)) { 374234890Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) { 375234890Smonthadar ms->ms_ppath->mpp_senderror(vap, dest, rt, 376234890Smonthadar IEEE80211_REASON_MESH_PERR_NO_PROXY); 377234890Smonthadar } else { 378234890Smonthadar ms->ms_ppath->mpp_senderror(vap, dest, rt, 379234890Smonthadar IEEE80211_REASON_MESH_PERR_DEST_UNREACH); 380234890Smonthadar } 381195784Srpaulo mesh_rt_del(ms, rt); 382195618Srpaulo MESH_RT_UNLOCK(ms); 383195618Srpaulo return; 384195618Srpaulo } 385195618Srpaulo } 386195618Srpaulo MESH_RT_UNLOCK(ms); 387195618Srpaulo} 388195618Srpaulo 389195618Srpaulovoid 390195618Srpauloieee80211_mesh_rt_flush(struct ieee80211vap *vap) 391195618Srpaulo{ 392195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 393195618Srpaulo struct ieee80211_mesh_route *rt, *next; 394195618Srpaulo 395195618Srpaulo if (ms == NULL) 396195618Srpaulo return; 397195618Srpaulo MESH_RT_LOCK(ms); 398195784Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) 399195784Srpaulo mesh_rt_del(ms, rt); 400195784Srpaulo MESH_RT_UNLOCK(ms); 401195784Srpaulo} 402195784Srpaulo 403195908Srpaulovoid 404195908Srpauloieee80211_mesh_rt_flush_peer(struct ieee80211vap *vap, 405195908Srpaulo const uint8_t peer[IEEE80211_ADDR_LEN]) 406195908Srpaulo{ 407195908Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 408195908Srpaulo struct ieee80211_mesh_route *rt, *next; 409195908Srpaulo 410195908Srpaulo MESH_RT_LOCK(ms); 411195908Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 412195908Srpaulo if (IEEE80211_ADDR_EQ(rt->rt_nexthop, peer)) 413195908Srpaulo mesh_rt_del(ms, rt); 414195908Srpaulo } 415195908Srpaulo MESH_RT_UNLOCK(ms); 416195908Srpaulo} 417195908Srpaulo 418195784Srpaulo/* 419195784Srpaulo * Flush expired routing entries, i.e. those in invalid state for 420195784Srpaulo * some time. 421195784Srpaulo */ 422195784Srpaulostatic void 423195784Srpaulomesh_rt_flush_invalid(struct ieee80211vap *vap) 424195784Srpaulo{ 425195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 426195784Srpaulo struct ieee80211_mesh_route *rt, *next; 427195784Srpaulo 428195784Srpaulo if (ms == NULL) 429195784Srpaulo return; 430195784Srpaulo MESH_RT_LOCK(ms); 431195618Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 432234894Smonthadar /* Discover paths will be deleted by their own callout */ 433234894Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_DISCOVER) 434234894Smonthadar continue; 435234877Smonthadar ieee80211_mesh_rt_update(rt, 0); 436234894Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) 437195784Srpaulo mesh_rt_del(ms, rt); 438195618Srpaulo } 439195618Srpaulo MESH_RT_UNLOCK(ms); 440195618Srpaulo} 441195618Srpaulo 442195618Srpaulo#define N(a) (sizeof(a) / sizeof(a[0])) 443195618Srpauloint 444195618Srpauloieee80211_mesh_register_proto_path(const struct ieee80211_mesh_proto_path *mpp) 445195618Srpaulo{ 446195618Srpaulo int i, firstempty = -1; 447195618Srpaulo 448195618Srpaulo for (i = 0; i < N(mesh_proto_paths); i++) { 449197975Srpaulo if (strncmp(mpp->mpp_descr, mesh_proto_paths[i].mpp_descr, 450197975Srpaulo IEEE80211_MESH_PROTO_DSZ) == 0) 451195618Srpaulo return EEXIST; 452197975Srpaulo if (!mesh_proto_paths[i].mpp_active && firstempty == -1) 453195618Srpaulo firstempty = i; 454195618Srpaulo } 455195618Srpaulo if (firstempty < 0) 456195618Srpaulo return ENOSPC; 457195618Srpaulo memcpy(&mesh_proto_paths[firstempty], mpp, sizeof(*mpp)); 458197975Srpaulo mesh_proto_paths[firstempty].mpp_active = 1; 459195618Srpaulo return 0; 460195618Srpaulo} 461195618Srpaulo 462195618Srpauloint 463195618Srpauloieee80211_mesh_register_proto_metric(const struct 464195618Srpaulo ieee80211_mesh_proto_metric *mpm) 465195618Srpaulo{ 466195618Srpaulo int i, firstempty = -1; 467195618Srpaulo 468195618Srpaulo for (i = 0; i < N(mesh_proto_metrics); i++) { 469197975Srpaulo if (strncmp(mpm->mpm_descr, mesh_proto_metrics[i].mpm_descr, 470197975Srpaulo IEEE80211_MESH_PROTO_DSZ) == 0) 471195618Srpaulo return EEXIST; 472197975Srpaulo if (!mesh_proto_metrics[i].mpm_active && firstempty == -1) 473195618Srpaulo firstempty = i; 474195618Srpaulo } 475195618Srpaulo if (firstempty < 0) 476195618Srpaulo return ENOSPC; 477195618Srpaulo memcpy(&mesh_proto_metrics[firstempty], mpm, sizeof(*mpm)); 478197975Srpaulo mesh_proto_metrics[firstempty].mpm_active = 1; 479195618Srpaulo return 0; 480195618Srpaulo} 481195618Srpaulo 482195618Srpaulostatic int 483195618Srpaulomesh_select_proto_path(struct ieee80211vap *vap, const char *name) 484195618Srpaulo{ 485195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 486195618Srpaulo int i; 487195618Srpaulo 488195618Srpaulo for (i = 0; i < N(mesh_proto_paths); i++) { 489195618Srpaulo if (strcasecmp(mesh_proto_paths[i].mpp_descr, name) == 0) { 490195618Srpaulo ms->ms_ppath = &mesh_proto_paths[i]; 491195618Srpaulo return 0; 492195618Srpaulo } 493195618Srpaulo } 494195618Srpaulo return ENOENT; 495195618Srpaulo} 496195618Srpaulo 497195618Srpaulostatic int 498195618Srpaulomesh_select_proto_metric(struct ieee80211vap *vap, const char *name) 499195618Srpaulo{ 500195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 501195618Srpaulo int i; 502195618Srpaulo 503195618Srpaulo for (i = 0; i < N(mesh_proto_metrics); i++) { 504195618Srpaulo if (strcasecmp(mesh_proto_metrics[i].mpm_descr, name) == 0) { 505195618Srpaulo ms->ms_pmetric = &mesh_proto_metrics[i]; 506195618Srpaulo return 0; 507195618Srpaulo } 508195618Srpaulo } 509195618Srpaulo return ENOENT; 510195618Srpaulo} 511195618Srpaulo#undef N 512195618Srpaulo 513195618Srpaulostatic void 514246506Smonthadarmesh_gatemode_setup(struct ieee80211vap *vap) 515246506Smonthadar{ 516246506Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 517246506Smonthadar 518246506Smonthadar /* 519246506Smonthadar * NB: When a mesh gate is running as a ROOT it shall 520246506Smonthadar * not send out periodic GANNs but instead mark the 521246506Smonthadar * mesh gate flag for the corresponding proactive PREQ 522246506Smonthadar * and RANN frames. 523246506Smonthadar */ 524246506Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_ROOT || 525246506Smonthadar (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) == 0) { 526246506Smonthadar callout_drain(&ms->ms_gatetimer); 527246506Smonthadar return ; 528246506Smonthadar } 529246506Smonthadar callout_reset(&ms->ms_gatetimer, ieee80211_mesh_gateint, 530246506Smonthadar mesh_gatemode_cb, vap); 531246506Smonthadar} 532246506Smonthadar 533246506Smonthadarstatic void 534246506Smonthadarmesh_gatemode_cb(void *arg) 535246506Smonthadar{ 536246506Smonthadar struct ieee80211vap *vap = (struct ieee80211vap *)arg; 537246506Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 538246506Smonthadar struct ieee80211_meshgann_ie gann; 539246506Smonthadar 540246506Smonthadar gann.gann_flags = 0; /* Reserved */ 541246506Smonthadar gann.gann_hopcount = 0; 542246506Smonthadar gann.gann_ttl = ms->ms_ttl; 543246506Smonthadar IEEE80211_ADDR_COPY(gann.gann_addr, vap->iv_myaddr); 544246506Smonthadar gann.gann_seq = ms->ms_gateseq++; 545246506Smonthadar gann.gann_interval = ieee80211_mesh_gateint; 546246506Smonthadar 547246520Smonthadar IEEE80211_NOTE(vap, IEEE80211_MSG_MESH, vap->iv_bss, 548246520Smonthadar "send broadcast GANN (seq %u)", gann.gann_seq); 549246520Smonthadar 550246506Smonthadar ieee80211_send_action(vap->iv_bss, IEEE80211_ACTION_CAT_MESH, 551246506Smonthadar IEEE80211_ACTION_MESH_GANN, &gann); 552246506Smonthadar mesh_gatemode_setup(vap); 553246506Smonthadar} 554246506Smonthadar 555246506Smonthadarstatic void 556195618Srpauloieee80211_mesh_init(void) 557195618Srpaulo{ 558195618Srpaulo 559195618Srpaulo memset(mesh_proto_paths, 0, sizeof(mesh_proto_paths)); 560195618Srpaulo memset(mesh_proto_metrics, 0, sizeof(mesh_proto_metrics)); 561195618Srpaulo 562195618Srpaulo /* 563195618Srpaulo * Setup mesh parameters that depends on the clock frequency. 564195618Srpaulo */ 565246506Smonthadar ieee80211_mesh_gateint = msecs_to_ticks(10000); 566195618Srpaulo ieee80211_mesh_retrytimeout = msecs_to_ticks(40); 567195618Srpaulo ieee80211_mesh_holdingtimeout = msecs_to_ticks(40); 568195618Srpaulo ieee80211_mesh_confirmtimeout = msecs_to_ticks(40); 569246497Smonthadar ieee80211_mesh_backofftimeout = msecs_to_ticks(5000); 570195618Srpaulo 571195618Srpaulo /* 572195618Srpaulo * Register action frame handlers. 573195618Srpaulo */ 574234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 575195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, 576195618Srpaulo mesh_recv_action_meshpeering_open); 577234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 578195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 579195618Srpaulo mesh_recv_action_meshpeering_confirm); 580234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 581195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 582195618Srpaulo mesh_recv_action_meshpeering_close); 583232479Sadrian ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESH, 584232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, mesh_recv_action_meshlmetric); 585246506Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESH, 586246506Smonthadar IEEE80211_ACTION_MESH_GANN, mesh_recv_action_meshgate); 587195618Srpaulo 588234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 589195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, 590195618Srpaulo mesh_send_action_meshpeering_open); 591234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 592195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 593195618Srpaulo mesh_send_action_meshpeering_confirm); 594234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 595195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 596195618Srpaulo mesh_send_action_meshpeering_close); 597232479Sadrian ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESH, 598232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, 599232479Sadrian mesh_send_action_meshlmetric); 600246506Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESH, 601246506Smonthadar IEEE80211_ACTION_MESH_GANN, 602246506Smonthadar mesh_send_action_meshgate); 603195618Srpaulo 604195618Srpaulo /* 605195618Srpaulo * Register Airtime Link Metric. 606195618Srpaulo */ 607195618Srpaulo ieee80211_mesh_register_proto_metric(&mesh_metric_airtime); 608195618Srpaulo 609195618Srpaulo} 610195618SrpauloSYSINIT(wlan_mesh, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_mesh_init, NULL); 611195618Srpaulo 612195618Srpaulovoid 613195618Srpauloieee80211_mesh_attach(struct ieee80211com *ic) 614195618Srpaulo{ 615195618Srpaulo ic->ic_vattach[IEEE80211_M_MBSS] = mesh_vattach; 616195618Srpaulo} 617195618Srpaulo 618195618Srpaulovoid 619195618Srpauloieee80211_mesh_detach(struct ieee80211com *ic) 620195618Srpaulo{ 621195618Srpaulo} 622195618Srpaulo 623195618Srpaulostatic void 624195618Srpaulomesh_vdetach_peers(void *arg, struct ieee80211_node *ni) 625195618Srpaulo{ 626195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 627195618Srpaulo uint16_t args[3]; 628195618Srpaulo 629195618Srpaulo if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED) { 630195618Srpaulo args[0] = ni->ni_mlpid; 631195618Srpaulo args[1] = ni->ni_mllid; 632195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 633195618Srpaulo ieee80211_send_action(ni, 634234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 635195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 636195618Srpaulo args); 637195618Srpaulo } 638195784Srpaulo callout_drain(&ni->ni_mltimer); 639195618Srpaulo /* XXX belongs in hwmp */ 640195618Srpaulo ieee80211_ageq_drain_node(&ic->ic_stageq, 641195618Srpaulo (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr)); 642195618Srpaulo} 643195618Srpaulo 644195618Srpaulostatic void 645195618Srpaulomesh_vdetach(struct ieee80211vap *vap) 646195618Srpaulo{ 647195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 648195618Srpaulo 649195784Srpaulo callout_drain(&ms->ms_cleantimer); 650195618Srpaulo ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_vdetach_peers, 651195618Srpaulo NULL); 652195618Srpaulo ieee80211_mesh_rt_flush(vap); 653195618Srpaulo mtx_destroy(&ms->ms_rt_lock); 654195618Srpaulo ms->ms_ppath->mpp_vdetach(vap); 655195618Srpaulo free(vap->iv_mesh, M_80211_VAP); 656195618Srpaulo vap->iv_mesh = NULL; 657195618Srpaulo} 658195618Srpaulo 659195618Srpaulostatic void 660195618Srpaulomesh_vattach(struct ieee80211vap *vap) 661195618Srpaulo{ 662195618Srpaulo struct ieee80211_mesh_state *ms; 663195618Srpaulo vap->iv_newstate = mesh_newstate; 664195618Srpaulo vap->iv_input = mesh_input; 665195618Srpaulo vap->iv_opdetach = mesh_vdetach; 666195618Srpaulo vap->iv_recv_mgmt = mesh_recv_mgmt; 667205277Srpaulo vap->iv_recv_ctl = mesh_recv_ctl; 668195618Srpaulo ms = malloc(sizeof(struct ieee80211_mesh_state), M_80211_VAP, 669195618Srpaulo M_NOWAIT | M_ZERO); 670195618Srpaulo if (ms == NULL) { 671195618Srpaulo printf("%s: couldn't alloc MBSS state\n", __func__); 672195784Srpaulo return; 673195618Srpaulo } 674195618Srpaulo vap->iv_mesh = ms; 675195618Srpaulo ms->ms_seq = 0; 676195618Srpaulo ms->ms_flags = (IEEE80211_MESHFLAGS_AP | IEEE80211_MESHFLAGS_FWD); 677195618Srpaulo ms->ms_ttl = IEEE80211_MESH_DEFAULT_TTL; 678246508Smonthadar TAILQ_INIT(&ms->ms_known_gates); 679195618Srpaulo TAILQ_INIT(&ms->ms_routes); 680195618Srpaulo mtx_init(&ms->ms_rt_lock, "MBSS", "802.11s routing table", MTX_DEF); 681314667Savg callout_init(&ms->ms_cleantimer, 1); 682314667Savg callout_init(&ms->ms_gatetimer, 1); 683246506Smonthadar ms->ms_gateseq = 0; 684195618Srpaulo mesh_select_proto_metric(vap, "AIRTIME"); 685195618Srpaulo KASSERT(ms->ms_pmetric, ("ms_pmetric == NULL")); 686195618Srpaulo mesh_select_proto_path(vap, "HWMP"); 687195618Srpaulo KASSERT(ms->ms_ppath, ("ms_ppath == NULL")); 688195618Srpaulo ms->ms_ppath->mpp_vattach(vap); 689195618Srpaulo} 690195618Srpaulo 691195618Srpaulo/* 692195618Srpaulo * IEEE80211_M_MBSS vap state machine handler. 693195618Srpaulo */ 694195618Srpaulostatic int 695195618Srpaulomesh_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 696195618Srpaulo{ 697195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 698195618Srpaulo struct ieee80211com *ic = vap->iv_ic; 699195618Srpaulo struct ieee80211_node *ni; 700195618Srpaulo enum ieee80211_state ostate; 701195618Srpaulo 702195618Srpaulo IEEE80211_LOCK_ASSERT(ic); 703195618Srpaulo 704195618Srpaulo ostate = vap->iv_state; 705195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s (%d)\n", 706195618Srpaulo __func__, ieee80211_state_name[ostate], 707195618Srpaulo ieee80211_state_name[nstate], arg); 708195618Srpaulo vap->iv_state = nstate; /* state transition */ 709195618Srpaulo if (ostate != IEEE80211_S_SCAN) 710195618Srpaulo ieee80211_cancel_scan(vap); /* background scan */ 711195618Srpaulo ni = vap->iv_bss; /* NB: no reference held */ 712246506Smonthadar if (nstate != IEEE80211_S_RUN && ostate == IEEE80211_S_RUN) { 713195784Srpaulo callout_drain(&ms->ms_cleantimer); 714246506Smonthadar callout_drain(&ms->ms_gatetimer); 715246506Smonthadar } 716195618Srpaulo switch (nstate) { 717195618Srpaulo case IEEE80211_S_INIT: 718195618Srpaulo switch (ostate) { 719195618Srpaulo case IEEE80211_S_SCAN: 720195618Srpaulo ieee80211_cancel_scan(vap); 721195618Srpaulo break; 722195618Srpaulo case IEEE80211_S_CAC: 723195618Srpaulo ieee80211_dfs_cac_stop(vap); 724195618Srpaulo break; 725195618Srpaulo case IEEE80211_S_RUN: 726195618Srpaulo ieee80211_iterate_nodes(&ic->ic_sta, 727195618Srpaulo mesh_vdetach_peers, NULL); 728195618Srpaulo break; 729195618Srpaulo default: 730195618Srpaulo break; 731195618Srpaulo } 732195618Srpaulo if (ostate != IEEE80211_S_INIT) { 733195618Srpaulo /* NB: optimize INIT -> INIT case */ 734195618Srpaulo ieee80211_reset_bss(vap); 735195784Srpaulo ieee80211_mesh_rt_flush(vap); 736195618Srpaulo } 737195618Srpaulo break; 738195618Srpaulo case IEEE80211_S_SCAN: 739195618Srpaulo switch (ostate) { 740195618Srpaulo case IEEE80211_S_INIT: 741195618Srpaulo if (vap->iv_des_chan != IEEE80211_CHAN_ANYC && 742195618Srpaulo !IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan) && 743195618Srpaulo ms->ms_idlen != 0) { 744195618Srpaulo /* 745195618Srpaulo * Already have a channel and a mesh ID; bypass 746195618Srpaulo * the scan and startup immediately. 747195618Srpaulo */ 748195618Srpaulo ieee80211_create_ibss(vap, vap->iv_des_chan); 749195618Srpaulo break; 750195618Srpaulo } 751195618Srpaulo /* 752195618Srpaulo * Initiate a scan. We can come here as a result 753195618Srpaulo * of an IEEE80211_IOC_SCAN_REQ too in which case 754195618Srpaulo * the vap will be marked with IEEE80211_FEXT_SCANREQ 755195618Srpaulo * and the scan request parameters will be present 756195618Srpaulo * in iv_scanreq. Otherwise we do the default. 757195618Srpaulo */ 758195618Srpaulo if (vap->iv_flags_ext & IEEE80211_FEXT_SCANREQ) { 759195618Srpaulo ieee80211_check_scan(vap, 760195618Srpaulo vap->iv_scanreq_flags, 761195618Srpaulo vap->iv_scanreq_duration, 762195618Srpaulo vap->iv_scanreq_mindwell, 763195618Srpaulo vap->iv_scanreq_maxdwell, 764195618Srpaulo vap->iv_scanreq_nssid, vap->iv_scanreq_ssid); 765195618Srpaulo vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ; 766195618Srpaulo } else 767195618Srpaulo ieee80211_check_scan_current(vap); 768195618Srpaulo break; 769195618Srpaulo default: 770195618Srpaulo break; 771195618Srpaulo } 772195618Srpaulo break; 773195618Srpaulo case IEEE80211_S_CAC: 774195618Srpaulo /* 775195618Srpaulo * Start CAC on a DFS channel. We come here when starting 776195618Srpaulo * a bss on a DFS channel (see ieee80211_create_ibss). 777195618Srpaulo */ 778195618Srpaulo ieee80211_dfs_cac_start(vap); 779195618Srpaulo break; 780195618Srpaulo case IEEE80211_S_RUN: 781195618Srpaulo switch (ostate) { 782195618Srpaulo case IEEE80211_S_INIT: 783195618Srpaulo /* 784195618Srpaulo * Already have a channel; bypass the 785195618Srpaulo * scan and startup immediately. 786195618Srpaulo * Note that ieee80211_create_ibss will call 787195618Srpaulo * back to do a RUN->RUN state change. 788195618Srpaulo */ 789195618Srpaulo ieee80211_create_ibss(vap, 790195618Srpaulo ieee80211_ht_adjust_channel(ic, 791195618Srpaulo ic->ic_curchan, vap->iv_flags_ht)); 792195618Srpaulo /* NB: iv_bss is changed on return */ 793195618Srpaulo break; 794195618Srpaulo case IEEE80211_S_CAC: 795195618Srpaulo /* 796195618Srpaulo * NB: This is the normal state change when CAC 797195618Srpaulo * expires and no radar was detected; no need to 798195618Srpaulo * clear the CAC timer as it's already expired. 799195618Srpaulo */ 800195618Srpaulo /* fall thru... */ 801195618Srpaulo case IEEE80211_S_CSA: 802195618Srpaulo#if 0 803195618Srpaulo /* 804195618Srpaulo * Shorten inactivity timer of associated stations 805195618Srpaulo * to weed out sta's that don't follow a CSA. 806195618Srpaulo */ 807195618Srpaulo ieee80211_iterate_nodes(&ic->ic_sta, sta_csa, vap); 808195618Srpaulo#endif 809195618Srpaulo /* 810195618Srpaulo * Update bss node channel to reflect where 811195618Srpaulo * we landed after CSA. 812195618Srpaulo */ 813195618Srpaulo ieee80211_node_set_chan(vap->iv_bss, 814195618Srpaulo ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 815195618Srpaulo ieee80211_htchanflags(vap->iv_bss->ni_chan))); 816195618Srpaulo /* XXX bypass debug msgs */ 817195618Srpaulo break; 818195618Srpaulo case IEEE80211_S_SCAN: 819195618Srpaulo case IEEE80211_S_RUN: 820195618Srpaulo#ifdef IEEE80211_DEBUG 821195618Srpaulo if (ieee80211_msg_debug(vap)) { 822195618Srpaulo struct ieee80211_node *ni = vap->iv_bss; 823195618Srpaulo ieee80211_note(vap, 824195618Srpaulo "synchronized with %s meshid ", 825195618Srpaulo ether_sprintf(ni->ni_meshid)); 826195618Srpaulo ieee80211_print_essid(ni->ni_meshid, 827195618Srpaulo ni->ni_meshidlen); 828195618Srpaulo /* XXX MCS/HT */ 829195618Srpaulo printf(" channel %d\n", 830195618Srpaulo ieee80211_chan2ieee(ic, ic->ic_curchan)); 831195618Srpaulo } 832195618Srpaulo#endif 833195618Srpaulo break; 834195618Srpaulo default: 835195618Srpaulo break; 836195618Srpaulo } 837195618Srpaulo ieee80211_node_authorize(vap->iv_bss); 838195813Ssam callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact, 839195784Srpaulo mesh_rt_cleanup_cb, vap); 840246506Smonthadar mesh_gatemode_setup(vap); 841195618Srpaulo break; 842195618Srpaulo default: 843195618Srpaulo break; 844195618Srpaulo } 845195618Srpaulo /* NB: ostate not nstate */ 846195618Srpaulo ms->ms_ppath->mpp_newstate(vap, ostate, arg); 847195618Srpaulo return 0; 848195618Srpaulo} 849195618Srpaulo 850195784Srpaulostatic void 851195784Srpaulomesh_rt_cleanup_cb(void *arg) 852195784Srpaulo{ 853195784Srpaulo struct ieee80211vap *vap = arg; 854195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 855195784Srpaulo 856195784Srpaulo mesh_rt_flush_invalid(vap); 857195813Ssam callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact, 858195784Srpaulo mesh_rt_cleanup_cb, vap); 859195784Srpaulo} 860195784Srpaulo 861246509Smonthadar/* 862246509Smonthadar * Mark a mesh STA as gate and return a pointer to it. 863246509Smonthadar * If this is first time, we create a new gate route. 864246509Smonthadar * Always update the path route to this mesh gate. 865246509Smonthadar */ 866246509Smonthadarstruct ieee80211_mesh_gate_route * 867246509Smonthadarieee80211_mesh_mark_gate(struct ieee80211vap *vap, const uint8_t *addr, 868246509Smonthadar struct ieee80211_mesh_route *rt) 869246509Smonthadar{ 870246509Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 871246509Smonthadar struct ieee80211_mesh_gate_route *gr = NULL, *next; 872246509Smonthadar int found = 0; 873195784Srpaulo 874246509Smonthadar MESH_RT_LOCK(ms); 875246509Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, next) { 876246509Smonthadar if (IEEE80211_ADDR_EQ(gr->gr_addr, addr)) { 877246509Smonthadar found = 1; 878246509Smonthadar break; 879246509Smonthadar } 880246509Smonthadar } 881246509Smonthadar 882246509Smonthadar if (!found) { 883246509Smonthadar /* New mesh gate add it to known table. */ 884246509Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, addr, 885246509Smonthadar "%s", "stored new gate information from pro-PREQ."); 886246509Smonthadar gr = malloc(ALIGN(sizeof(struct ieee80211_mesh_gate_route)), 887246509Smonthadar M_80211_MESH_GT_RT, M_NOWAIT | M_ZERO); 888246509Smonthadar IEEE80211_ADDR_COPY(gr->gr_addr, addr); 889246509Smonthadar TAILQ_INSERT_TAIL(&ms->ms_known_gates, gr, gr_next); 890246509Smonthadar } 891246509Smonthadar gr->gr_route = rt; 892246509Smonthadar /* TODO: link from path route to gate route */ 893246509Smonthadar MESH_RT_UNLOCK(ms); 894246509Smonthadar 895246509Smonthadar return gr; 896246509Smonthadar} 897246509Smonthadar 898246509Smonthadar 899195618Srpaulo/* 900195618Srpaulo * Helper function to note the Mesh Peer Link FSM change. 901195618Srpaulo */ 902195618Srpaulostatic void 903195618Srpaulomesh_linkchange(struct ieee80211_node *ni, enum ieee80211_mesh_mlstate state) 904195618Srpaulo{ 905195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 906195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 907195618Srpaulo#ifdef IEEE80211_DEBUG 908195618Srpaulo static const char *meshlinkstates[] = { 909195618Srpaulo [IEEE80211_NODE_MESH_IDLE] = "IDLE", 910195618Srpaulo [IEEE80211_NODE_MESH_OPENSNT] = "OPEN SENT", 911195618Srpaulo [IEEE80211_NODE_MESH_OPENRCV] = "OPEN RECEIVED", 912195618Srpaulo [IEEE80211_NODE_MESH_CONFIRMRCV] = "CONFIRM RECEIVED", 913195618Srpaulo [IEEE80211_NODE_MESH_ESTABLISHED] = "ESTABLISHED", 914195618Srpaulo [IEEE80211_NODE_MESH_HOLDING] = "HOLDING" 915195618Srpaulo }; 916195618Srpaulo#endif 917195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_MESH, 918195618Srpaulo ni, "peer link: %s -> %s", 919195618Srpaulo meshlinkstates[ni->ni_mlstate], meshlinkstates[state]); 920195618Srpaulo 921195618Srpaulo /* track neighbor count */ 922195618Srpaulo if (state == IEEE80211_NODE_MESH_ESTABLISHED && 923195618Srpaulo ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) { 924195618Srpaulo KASSERT(ms->ms_neighbors < 65535, ("neighbor count overflow")); 925195618Srpaulo ms->ms_neighbors++; 926198242Srpaulo ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF); 927195618Srpaulo } else if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED && 928195618Srpaulo state != IEEE80211_NODE_MESH_ESTABLISHED) { 929195618Srpaulo KASSERT(ms->ms_neighbors > 0, ("neighbor count 0")); 930195618Srpaulo ms->ms_neighbors--; 931198242Srpaulo ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF); 932195618Srpaulo } 933195618Srpaulo ni->ni_mlstate = state; 934195784Srpaulo switch (state) { 935195784Srpaulo case IEEE80211_NODE_MESH_HOLDING: 936195618Srpaulo ms->ms_ppath->mpp_peerdown(ni); 937195784Srpaulo break; 938195784Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 939195784Srpaulo ieee80211_mesh_discover(vap, ni->ni_macaddr, NULL); 940195784Srpaulo break; 941195784Srpaulo default: 942195784Srpaulo break; 943195784Srpaulo } 944195618Srpaulo} 945195618Srpaulo 946195618Srpaulo/* 947195618Srpaulo * Helper function to generate a unique local ID required for mesh 948195618Srpaulo * peer establishment. 949195618Srpaulo */ 950195618Srpaulostatic void 951195618Srpaulomesh_checkid(void *arg, struct ieee80211_node *ni) 952195618Srpaulo{ 953195618Srpaulo uint16_t *r = arg; 954195618Srpaulo 955195618Srpaulo if (*r == ni->ni_mllid) 956195618Srpaulo *(uint16_t *)arg = 0; 957195618Srpaulo} 958195618Srpaulo 959195618Srpaulostatic uint32_t 960195618Srpaulomesh_generateid(struct ieee80211vap *vap) 961195618Srpaulo{ 962195618Srpaulo int maxiter = 4; 963195618Srpaulo uint16_t r; 964195618Srpaulo 965195618Srpaulo do { 966195618Srpaulo get_random_bytes(&r, 2); 967195618Srpaulo ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_checkid, &r); 968195618Srpaulo maxiter--; 969195618Srpaulo } while (r == 0 && maxiter > 0); 970195618Srpaulo return r; 971195618Srpaulo} 972195618Srpaulo 973195618Srpaulo/* 974195618Srpaulo * Verifies if we already received this packet by checking its 975195618Srpaulo * sequence number. 976195908Srpaulo * Returns 0 if the frame is to be accepted, 1 otherwise. 977195618Srpaulo */ 978195618Srpaulostatic int 979195618Srpaulomesh_checkpseq(struct ieee80211vap *vap, 980195618Srpaulo const uint8_t source[IEEE80211_ADDR_LEN], uint32_t seq) 981195618Srpaulo{ 982195618Srpaulo struct ieee80211_mesh_route *rt; 983195618Srpaulo 984195618Srpaulo rt = ieee80211_mesh_rt_find(vap, source); 985195618Srpaulo if (rt == NULL) { 986195908Srpaulo rt = ieee80211_mesh_rt_add(vap, source); 987195908Srpaulo if (rt == NULL) { 988195908Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source, 989195908Srpaulo "%s", "add mcast route failed"); 990195908Srpaulo vap->iv_stats.is_mesh_rtaddfailed++; 991195908Srpaulo return 1; 992195908Srpaulo } 993195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source, 994195784Srpaulo "add mcast route, mesh seqno %d", seq); 995195908Srpaulo rt->rt_lastmseq = seq; 996195618Srpaulo return 0; 997195618Srpaulo } 998195618Srpaulo if (IEEE80211_MESH_SEQ_GEQ(rt->rt_lastmseq, seq)) { 999195618Srpaulo return 1; 1000195618Srpaulo } else { 1001195618Srpaulo rt->rt_lastmseq = seq; 1002195618Srpaulo return 0; 1003195618Srpaulo } 1004195618Srpaulo} 1005195618Srpaulo 1006195618Srpaulo/* 1007195618Srpaulo * Iterate the routing table and locate the next hop. 1008195618Srpaulo */ 1009246512Smonthadarstruct ieee80211_node * 1010246512Smonthadarieee80211_mesh_find_txnode(struct ieee80211vap *vap, 1011195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 1012195618Srpaulo{ 1013195618Srpaulo struct ieee80211_mesh_route *rt; 1014195618Srpaulo 1015195618Srpaulo rt = ieee80211_mesh_rt_find(vap, dest); 1016195618Srpaulo if (rt == NULL) 1017195618Srpaulo return NULL; 1018246511Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 1019195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 1020246511Smonthadar "%s: !valid, flags 0x%x", __func__, rt->rt_flags); 1021195784Srpaulo /* XXX stat */ 1022195784Srpaulo return NULL; 1023195784Srpaulo } 1024246511Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) { 1025246511Smonthadar rt = ieee80211_mesh_rt_find(vap, rt->rt_mesh_gate); 1026246511Smonthadar if (rt == NULL) return NULL; 1027246511Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 1028246511Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 1029246511Smonthadar "%s: meshgate !valid, flags 0x%x", __func__, 1030246511Smonthadar rt->rt_flags); 1031246511Smonthadar /* XXX stat */ 1032246511Smonthadar return NULL; 1033246511Smonthadar } 1034246511Smonthadar } 1035195618Srpaulo return ieee80211_find_txnode(vap, rt->rt_nexthop); 1036195618Srpaulo} 1037195618Srpaulo 1038246511Smonthadarstatic void 1039246511Smonthadarmesh_transmit_to_gate(struct ieee80211vap *vap, struct mbuf *m, 1040246511Smonthadar struct ieee80211_mesh_route *rt_gate) 1041246511Smonthadar{ 1042246511Smonthadar struct ifnet *ifp = vap->iv_ifp; 1043246511Smonthadar struct ieee80211_node *ni; 1044246511Smonthadar 1045253745Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1046248069Sadrian 1047246512Smonthadar ni = ieee80211_mesh_find_txnode(vap, rt_gate->rt_dest); 1048246511Smonthadar if (ni == NULL) { 1049246511Smonthadar ifp->if_oerrors++; 1050246511Smonthadar m_freem(m); 1051246511Smonthadar return; 1052246511Smonthadar } 1053246511Smonthadar 1054246511Smonthadar /* 1055253727Sadrian * Send through the VAP packet transmit path. 1056253727Sadrian * This consumes the node ref grabbed above and 1057253727Sadrian * the mbuf, regardless of whether there's a problem 1058253727Sadrian * or not. 1059246511Smonthadar */ 1060253727Sadrian (void) ieee80211_vap_pkt_send_dest(vap, m, ni); 1061246511Smonthadar} 1062246511Smonthadar 1063195618Srpaulo/* 1064246510Smonthadar * Forward the queued frames to known valid mesh gates. 1065246510Smonthadar * Assume destination to be outside the MBSS (i.e. proxy entry), 1066246510Smonthadar * If no valid mesh gates are known silently discard queued frames. 1067246511Smonthadar * After transmitting frames to all known valid mesh gates, this route 1068246511Smonthadar * will be marked invalid, and a new path discovery will happen in the hopes 1069246511Smonthadar * that (at least) one of the mesh gates have a new proxy entry for us to use. 1070246510Smonthadar */ 1071246510Smonthadarvoid 1072246510Smonthadarieee80211_mesh_forward_to_gates(struct ieee80211vap *vap, 1073246510Smonthadar struct ieee80211_mesh_route *rt_dest) 1074246510Smonthadar{ 1075246510Smonthadar struct ieee80211com *ic = vap->iv_ic; 1076246510Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1077246510Smonthadar struct ieee80211_mesh_route *rt_gate; 1078246510Smonthadar struct ieee80211_mesh_gate_route *gr = NULL, *gr_next; 1079246511Smonthadar struct mbuf *m, *mcopy, *next; 1080246510Smonthadar 1081248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1082248069Sadrian 1083246510Smonthadar KASSERT( rt_dest->rt_flags == IEEE80211_MESHRT_FLAGS_DISCOVER, 1084246510Smonthadar ("Route is not marked with IEEE80211_MESHRT_FLAGS_DISCOVER")); 1085246510Smonthadar 1086246510Smonthadar /* XXX: send to more than one valid mash gate */ 1087246510Smonthadar MESH_RT_LOCK(ms); 1088246511Smonthadar 1089246511Smonthadar m = ieee80211_ageq_remove(&ic->ic_stageq, 1090246511Smonthadar (struct ieee80211_node *)(uintptr_t) 1091246511Smonthadar ieee80211_mac_hash(ic, rt_dest->rt_dest)); 1092246511Smonthadar 1093246510Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, gr_next) { 1094246510Smonthadar rt_gate = gr->gr_route; 1095246510Smonthadar if (rt_gate == NULL) { 1096246510Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_HWMP, 1097246510Smonthadar rt_dest->rt_dest, 1098246510Smonthadar "mesh gate with no path %6D", 1099246510Smonthadar gr->gr_addr, ":"); 1100246510Smonthadar continue; 1101246510Smonthadar } 1102246511Smonthadar if ((rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) 1103246511Smonthadar continue; 1104246511Smonthadar KASSERT(rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_GATE, 1105246511Smonthadar ("route not marked as a mesh gate")); 1106246511Smonthadar KASSERT((rt_gate->rt_flags & 1107246511Smonthadar IEEE80211_MESHRT_FLAGS_PROXY) == 0, 1108246511Smonthadar ("found mesh gate that is also marked porxy")); 1109246511Smonthadar /* 1110246511Smonthadar * convert route to a proxy route gated by the current 1111246511Smonthadar * mesh gate, this is needed so encap can built data 1112246511Smonthadar * frame with correct address. 1113246511Smonthadar */ 1114246510Smonthadar rt_dest->rt_flags = IEEE80211_MESHRT_FLAGS_PROXY | 1115246510Smonthadar IEEE80211_MESHRT_FLAGS_VALID; 1116246510Smonthadar rt_dest->rt_ext_seq = 1; /* random value */ 1117246510Smonthadar IEEE80211_ADDR_COPY(rt_dest->rt_mesh_gate, rt_gate->rt_dest); 1118246510Smonthadar IEEE80211_ADDR_COPY(rt_dest->rt_nexthop, rt_gate->rt_nexthop); 1119246510Smonthadar rt_dest->rt_metric = rt_gate->rt_metric; 1120246510Smonthadar rt_dest->rt_nhops = rt_gate->rt_nhops; 1121246510Smonthadar ieee80211_mesh_rt_update(rt_dest, ms->ms_ppath->mpp_inact); 1122246510Smonthadar MESH_RT_UNLOCK(ms); 1123246511Smonthadar /* XXX: lock?? */ 1124246511Smonthadar mcopy = m_dup(m, M_NOWAIT); 1125246511Smonthadar for (; mcopy != NULL; mcopy = next) { 1126246511Smonthadar next = mcopy->m_nextpkt; 1127246511Smonthadar mcopy->m_nextpkt = NULL; 1128246511Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_HWMP, 1129246511Smonthadar rt_dest->rt_dest, 1130246511Smonthadar "flush queued frame %p len %d", mcopy, 1131246511Smonthadar mcopy->m_pkthdr.len); 1132246511Smonthadar mesh_transmit_to_gate(vap, mcopy, rt_gate); 1133246510Smonthadar } 1134246510Smonthadar MESH_RT_LOCK(ms); 1135246510Smonthadar } 1136246511Smonthadar rt_dest->rt_flags = 0; /* Mark invalid */ 1137246511Smonthadar m_freem(m); 1138246510Smonthadar MESH_RT_UNLOCK(ms); 1139246510Smonthadar} 1140246510Smonthadar 1141246510Smonthadar/* 1142195618Srpaulo * Forward the specified frame. 1143195618Srpaulo * Decrement the TTL and set TA to our MAC address. 1144195618Srpaulo */ 1145195618Srpaulostatic void 1146195618Srpaulomesh_forward(struct ieee80211vap *vap, struct mbuf *m, 1147195618Srpaulo const struct ieee80211_meshcntl *mc) 1148195618Srpaulo{ 1149195618Srpaulo struct ieee80211com *ic = vap->iv_ic; 1150195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 1151195618Srpaulo struct ifnet *ifp = vap->iv_ifp; 1152195618Srpaulo const struct ieee80211_frame *wh = 1153195618Srpaulo mtod(m, const struct ieee80211_frame *); 1154195618Srpaulo struct mbuf *mcopy; 1155195618Srpaulo struct ieee80211_meshcntl *mccopy; 1156195618Srpaulo struct ieee80211_frame *whcopy; 1157195618Srpaulo struct ieee80211_node *ni; 1158195618Srpaulo int err; 1159195618Srpaulo 1160248069Sadrian /* This is called from the RX path - don't hold this lock */ 1161248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1162248069Sadrian 1163234878Smonthadar /* 1164234878Smonthadar * mesh ttl of 1 means we are the last one receving it, 1165234878Smonthadar * according to amendment we decrement and then check if 1166234878Smonthadar * 0, if so we dont forward. 1167234878Smonthadar */ 1168234878Smonthadar if (mc->mc_ttl < 1) { 1169195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1170234878Smonthadar "%s", "frame not fwd'd, ttl 1"); 1171195618Srpaulo vap->iv_stats.is_mesh_fwd_ttl++; 1172195618Srpaulo return; 1173195618Srpaulo } 1174195618Srpaulo if (!(ms->ms_flags & IEEE80211_MESHFLAGS_FWD)) { 1175195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1176195618Srpaulo "%s", "frame not fwd'd, fwding disabled"); 1177195618Srpaulo vap->iv_stats.is_mesh_fwd_disabled++; 1178195618Srpaulo return; 1179195618Srpaulo } 1180243882Sglebius mcopy = m_dup(m, M_NOWAIT); 1181195618Srpaulo if (mcopy == NULL) { 1182195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1183195618Srpaulo "%s", "frame not fwd'd, cannot dup"); 1184195618Srpaulo vap->iv_stats.is_mesh_fwd_nobuf++; 1185195618Srpaulo ifp->if_oerrors++; 1186195618Srpaulo return; 1187195618Srpaulo } 1188195618Srpaulo mcopy = m_pullup(mcopy, ieee80211_hdrspace(ic, wh) + 1189195618Srpaulo sizeof(struct ieee80211_meshcntl)); 1190195618Srpaulo if (mcopy == NULL) { 1191195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1192195618Srpaulo "%s", "frame not fwd'd, too short"); 1193195618Srpaulo vap->iv_stats.is_mesh_fwd_tooshort++; 1194195618Srpaulo ifp->if_oerrors++; 1195195618Srpaulo m_freem(mcopy); 1196195618Srpaulo return; 1197195618Srpaulo } 1198195618Srpaulo whcopy = mtod(mcopy, struct ieee80211_frame *); 1199195618Srpaulo mccopy = (struct ieee80211_meshcntl *) 1200195618Srpaulo (mtod(mcopy, uint8_t *) + ieee80211_hdrspace(ic, wh)); 1201195618Srpaulo /* XXX clear other bits? */ 1202195618Srpaulo whcopy->i_fc[1] &= ~IEEE80211_FC1_RETRY; 1203195618Srpaulo IEEE80211_ADDR_COPY(whcopy->i_addr2, vap->iv_myaddr); 1204195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1205195618Srpaulo ni = ieee80211_ref_node(vap->iv_bss); 1206195618Srpaulo mcopy->m_flags |= M_MCAST; 1207195618Srpaulo } else { 1208246512Smonthadar ni = ieee80211_mesh_find_txnode(vap, whcopy->i_addr3); 1209195618Srpaulo if (ni == NULL) { 1210234878Smonthadar /* 1211234878Smonthadar * [Optional] any of the following three actions: 1212234878Smonthadar * o silently discard 1213234878Smonthadar * o trigger a path discovery 1214234890Smonthadar * o inform TA that meshDA is unknown. 1215234878Smonthadar */ 1216195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1217195618Srpaulo "%s", "frame not fwd'd, no path"); 1218234890Smonthadar ms->ms_ppath->mpp_senderror(vap, whcopy->i_addr3, NULL, 1219234890Smonthadar IEEE80211_REASON_MESH_PERR_NO_FI); 1220195618Srpaulo vap->iv_stats.is_mesh_fwd_nopath++; 1221195618Srpaulo m_freem(mcopy); 1222195618Srpaulo return; 1223195618Srpaulo } 1224195618Srpaulo IEEE80211_ADDR_COPY(whcopy->i_addr1, ni->ni_macaddr); 1225195618Srpaulo } 1226195618Srpaulo KASSERT(mccopy->mc_ttl > 0, ("%s called with wrong ttl", __func__)); 1227195618Srpaulo mccopy->mc_ttl--; 1228195618Srpaulo 1229195618Srpaulo /* XXX calculate priority so drivers can find the tx queue */ 1230195618Srpaulo M_WME_SETAC(mcopy, WME_AC_BE); 1231195618Srpaulo 1232195618Srpaulo /* XXX do we know m_nextpkt is NULL? */ 1233195618Srpaulo mcopy->m_pkthdr.rcvif = (void *) ni; 1234248069Sadrian 1235248069Sadrian /* 1236248069Sadrian * XXX this bypasses all of the VAP TX handling; it passes frames 1237248069Sadrian * directly to the parent interface. 1238248069Sadrian * 1239248069Sadrian * Because of this, there's no TX lock being held as there's no 1240248069Sadrian * encaps state being used. 1241248069Sadrian * 1242248069Sadrian * Doing a direct parent transmit may not be the correct thing 1243248069Sadrian * to do here; we'll have to re-think this soon. 1244248069Sadrian */ 1245248069Sadrian IEEE80211_TX_LOCK(ic); 1246254082Sadrian err = ieee80211_parent_xmitpkt(ic, mcopy); 1247248069Sadrian IEEE80211_TX_UNLOCK(ic); 1248195618Srpaulo if (err != 0) { 1249195618Srpaulo /* NB: IFQ_HANDOFF reclaims mbuf */ 1250195618Srpaulo ieee80211_free_node(ni); 1251195618Srpaulo } else { 1252195618Srpaulo ifp->if_opackets++; 1253195618Srpaulo } 1254195618Srpaulo} 1255195618Srpaulo 1256195784Srpaulostatic struct mbuf * 1257195784Srpaulomesh_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen, int meshdrlen) 1258195784Srpaulo{ 1259234878Smonthadar#define WHDIR(wh) ((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) 1260234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1261195784Srpaulo uint8_t b[sizeof(struct ieee80211_qosframe_addr4) + 1262234878Smonthadar sizeof(struct ieee80211_meshcntl_ae10)]; 1263195784Srpaulo const struct ieee80211_qosframe_addr4 *wh; 1264195784Srpaulo const struct ieee80211_meshcntl_ae10 *mc; 1265195784Srpaulo struct ether_header *eh; 1266195784Srpaulo struct llc *llc; 1267195784Srpaulo int ae; 1268195784Srpaulo 1269195784Srpaulo if (m->m_len < hdrlen + sizeof(*llc) && 1270195784Srpaulo (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) { 1271195784Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_ANY, 1272195784Srpaulo "discard data frame: %s", "m_pullup failed"); 1273195784Srpaulo vap->iv_stats.is_rx_tooshort++; 1274195784Srpaulo return NULL; 1275195784Srpaulo } 1276195784Srpaulo memcpy(b, mtod(m, caddr_t), hdrlen); 1277195784Srpaulo wh = (const struct ieee80211_qosframe_addr4 *)&b[0]; 1278195784Srpaulo mc = (const struct ieee80211_meshcntl_ae10 *)&b[hdrlen - meshdrlen]; 1279195784Srpaulo KASSERT(WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS || 1280195784Srpaulo WHDIR(wh) == IEEE80211_FC1_DIR_DSTODS, 1281195784Srpaulo ("bogus dir, fc 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1])); 1282195784Srpaulo 1283195784Srpaulo llc = (struct llc *)(mtod(m, caddr_t) + hdrlen); 1284195784Srpaulo if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP && 1285195784Srpaulo llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 && 1286195784Srpaulo llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 && 1287195784Srpaulo /* NB: preserve AppleTalk frames that have a native SNAP hdr */ 1288195784Srpaulo !(llc->llc_snap.ether_type == htons(ETHERTYPE_AARP) || 1289195784Srpaulo llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) { 1290195784Srpaulo m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh)); 1291195784Srpaulo llc = NULL; 1292195784Srpaulo } else { 1293195784Srpaulo m_adj(m, hdrlen - sizeof(*eh)); 1294195784Srpaulo } 1295195784Srpaulo eh = mtod(m, struct ether_header *); 1296234878Smonthadar ae = mc->mc_flags & IEEE80211_MESH_AE_MASK; 1297195784Srpaulo if (WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS) { 1298195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr1); 1299234878Smonthadar if (ae == IEEE80211_MESH_AE_00) { 1300195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr3); 1301234878Smonthadar } else if (ae == IEEE80211_MESH_AE_01) { 1302234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_shost, 1303234878Smonthadar MC01(mc)->mc_addr4); 1304195784Srpaulo } else { 1305195784Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1306195784Srpaulo (const struct ieee80211_frame *)wh, NULL, 1307195784Srpaulo "bad AE %d", ae); 1308195784Srpaulo vap->iv_stats.is_mesh_badae++; 1309195784Srpaulo m_freem(m); 1310195784Srpaulo return NULL; 1311195784Srpaulo } 1312195784Srpaulo } else { 1313234878Smonthadar if (ae == IEEE80211_MESH_AE_00) { 1314195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr3); 1315195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr4); 1316234878Smonthadar } else if (ae == IEEE80211_MESH_AE_10) { 1317234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_dhost, mc->mc_addr5); 1318234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_shost, mc->mc_addr6); 1319195784Srpaulo } else { 1320195784Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1321195784Srpaulo (const struct ieee80211_frame *)wh, NULL, 1322195784Srpaulo "bad AE %d", ae); 1323195784Srpaulo vap->iv_stats.is_mesh_badae++; 1324195784Srpaulo m_freem(m); 1325195784Srpaulo return NULL; 1326195784Srpaulo } 1327195784Srpaulo } 1328246710Sglebius#ifndef __NO_STRICT_ALIGNMENT 1329195784Srpaulo if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) { 1330195784Srpaulo m = ieee80211_realign(vap, m, sizeof(*eh)); 1331195784Srpaulo if (m == NULL) 1332195784Srpaulo return NULL; 1333195784Srpaulo } 1334246710Sglebius#endif /* !__NO_STRICT_ALIGNMENT */ 1335195784Srpaulo if (llc != NULL) { 1336195784Srpaulo eh = mtod(m, struct ether_header *); 1337195784Srpaulo eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh)); 1338195784Srpaulo } 1339195784Srpaulo return m; 1340234878Smonthadar#undef WDIR 1341234878Smonthadar#undef MC01 1342195784Srpaulo} 1343195784Srpaulo 1344195784Srpaulo/* 1345195784Srpaulo * Return non-zero if the unicast mesh data frame should be processed 1346195784Srpaulo * locally. Frames that are not proxy'd have our address, otherwise 1347195784Srpaulo * we need to consult the routing table to look for a proxy entry. 1348195784Srpaulo */ 1349195784Srpaulostatic __inline int 1350195784Srpaulomesh_isucastforme(struct ieee80211vap *vap, const struct ieee80211_frame *wh, 1351195784Srpaulo const struct ieee80211_meshcntl *mc) 1352195784Srpaulo{ 1353195784Srpaulo int ae = mc->mc_flags & 3; 1354195784Srpaulo 1355195784Srpaulo KASSERT((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS, 1356195784Srpaulo ("bad dir 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1])); 1357234878Smonthadar KASSERT(ae == IEEE80211_MESH_AE_00 || ae == IEEE80211_MESH_AE_10, 1358234878Smonthadar ("bad AE %d", ae)); 1359234878Smonthadar if (ae == IEEE80211_MESH_AE_10) { /* ucast w/ proxy */ 1360195784Srpaulo const struct ieee80211_meshcntl_ae10 *mc10 = 1361195784Srpaulo (const struct ieee80211_meshcntl_ae10 *) mc; 1362195784Srpaulo struct ieee80211_mesh_route *rt = 1363234878Smonthadar ieee80211_mesh_rt_find(vap, mc10->mc_addr5); 1364195784Srpaulo /* check for proxy route to ourself */ 1365195784Srpaulo return (rt != NULL && 1366195784Srpaulo (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY)); 1367195784Srpaulo } else /* ucast w/o proxy */ 1368195784Srpaulo return IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_myaddr); 1369195784Srpaulo} 1370195784Srpaulo 1371234878Smonthadar/* 1372234878Smonthadar * Verifies transmitter, updates lifetime, precursor list and forwards data. 1373234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1374234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1375234878Smonthadar * < 0 means there was an error and data should be discarded 1376234878Smonthadar */ 1377195618Srpaulostatic int 1378234878Smonthadarmesh_recv_indiv_data_to_fwrd(struct ieee80211vap *vap, struct mbuf *m, 1379234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1380234878Smonthadar{ 1381234879Smonthadar struct ieee80211_qosframe_addr4 *qwh; 1382234879Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1383234879Smonthadar struct ieee80211_mesh_route *rt_meshda, *rt_meshsa; 1384234878Smonthadar 1385248069Sadrian /* This is called from the RX path - don't hold this lock */ 1386248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1387248069Sadrian 1388234879Smonthadar qwh = (struct ieee80211_qosframe_addr4 *)wh; 1389234879Smonthadar 1390234878Smonthadar /* 1391234878Smonthadar * TODO: 1392234878Smonthadar * o verify addr2 is a legitimate transmitter 1393234878Smonthadar * o lifetime of precursor of addr3 (addr2) is max(init, curr) 1394234878Smonthadar * o lifetime of precursor of addr4 (nexthop) is max(init, curr) 1395234878Smonthadar */ 1396234878Smonthadar 1397234879Smonthadar /* set lifetime of addr3 (meshDA) to initial value */ 1398234879Smonthadar rt_meshda = ieee80211_mesh_rt_find(vap, qwh->i_addr3); 1399234880Smonthadar if (rt_meshda == NULL) { 1400234880Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, qwh->i_addr2, 1401234880Smonthadar "no route to meshDA(%6D)", qwh->i_addr3, ":"); 1402234880Smonthadar /* 1403234880Smonthadar * [Optional] any of the following three actions: 1404234880Smonthadar * o silently discard [X] 1405234880Smonthadar * o trigger a path discovery [ ] 1406234880Smonthadar * o inform TA that meshDA is unknown. [ ] 1407234880Smonthadar */ 1408234880Smonthadar /* XXX: stats */ 1409234880Smonthadar return (-1); 1410234880Smonthadar } 1411234880Smonthadar 1412234879Smonthadar ieee80211_mesh_rt_update(rt_meshda, ticks_to_msecs( 1413234879Smonthadar ms->ms_ppath->mpp_inact)); 1414234879Smonthadar 1415234879Smonthadar /* set lifetime of addr4 (meshSA) to initial value */ 1416234879Smonthadar rt_meshsa = ieee80211_mesh_rt_find(vap, qwh->i_addr4); 1417234879Smonthadar KASSERT(rt_meshsa != NULL, ("no route")); 1418234879Smonthadar ieee80211_mesh_rt_update(rt_meshsa, ticks_to_msecs( 1419234879Smonthadar ms->ms_ppath->mpp_inact)); 1420234879Smonthadar 1421234878Smonthadar mesh_forward(vap, m, mc); 1422234878Smonthadar return (1); /* dont process locally */ 1423234878Smonthadar} 1424234878Smonthadar 1425234878Smonthadar/* 1426234878Smonthadar * Verifies transmitter, updates lifetime, precursor list and process data 1427240521Seadler * locally, if data is proxy with AE = 10 it could mean data should go 1428234878Smonthadar * on another mesh path or data should be forwarded to the DS. 1429234878Smonthadar * 1430234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1431234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1432234878Smonthadar * < 0 means there was an error and data should be discarded 1433234878Smonthadar */ 1434234878Smonthadarstatic int 1435234878Smonthadarmesh_recv_indiv_data_to_me(struct ieee80211vap *vap, struct mbuf *m, 1436234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1437234878Smonthadar{ 1438234878Smonthadar struct ieee80211_qosframe_addr4 *qwh; 1439234878Smonthadar const struct ieee80211_meshcntl_ae10 *mc10; 1440234879Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1441234878Smonthadar struct ieee80211_mesh_route *rt; 1442234878Smonthadar int ae; 1443234878Smonthadar 1444248069Sadrian /* This is called from the RX path - don't hold this lock */ 1445248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1446248069Sadrian 1447234878Smonthadar qwh = (struct ieee80211_qosframe_addr4 *)wh; 1448234878Smonthadar mc10 = (const struct ieee80211_meshcntl_ae10 *)mc; 1449234878Smonthadar 1450234878Smonthadar /* 1451234878Smonthadar * TODO: 1452234878Smonthadar * o verify addr2 is a legitimate transmitter 1453234878Smonthadar * o lifetime of precursor entry is max(init, curr) 1454234878Smonthadar */ 1455234878Smonthadar 1456234879Smonthadar /* set lifetime of addr4 (meshSA) to initial value */ 1457234879Smonthadar rt = ieee80211_mesh_rt_find(vap, qwh->i_addr4); 1458234879Smonthadar KASSERT(rt != NULL, ("no route")); 1459234879Smonthadar ieee80211_mesh_rt_update(rt, ticks_to_msecs(ms->ms_ppath->mpp_inact)); 1460234879Smonthadar rt = NULL; 1461234879Smonthadar 1462234878Smonthadar ae = mc10->mc_flags & IEEE80211_MESH_AE_MASK; 1463234878Smonthadar KASSERT(ae == IEEE80211_MESH_AE_00 || 1464234878Smonthadar ae == IEEE80211_MESH_AE_10, ("bad AE %d", ae)); 1465234878Smonthadar if (ae == IEEE80211_MESH_AE_10) { 1466234878Smonthadar if (IEEE80211_ADDR_EQ(mc10->mc_addr5, qwh->i_addr3)) { 1467234878Smonthadar return (0); /* process locally */ 1468234878Smonthadar } 1469234878Smonthadar 1470234878Smonthadar rt = ieee80211_mesh_rt_find(vap, mc10->mc_addr5); 1471234878Smonthadar if (rt != NULL && 1472234878Smonthadar (rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) && 1473234878Smonthadar (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) == 0) { 1474234878Smonthadar /* 1475234878Smonthadar * Forward on another mesh-path, according to 1476234878Smonthadar * amendment as specified in 9.32.4.1 1477234878Smonthadar */ 1478234878Smonthadar IEEE80211_ADDR_COPY(qwh->i_addr3, mc10->mc_addr5); 1479234878Smonthadar mesh_forward(vap, m, 1480234878Smonthadar (const struct ieee80211_meshcntl *)mc10); 1481234878Smonthadar return (1); /* dont process locally */ 1482234878Smonthadar } 1483234878Smonthadar /* 1484234878Smonthadar * All other cases: forward of MSDUs from the MBSS to DS indiv. 1485234878Smonthadar * addressed according to 13.11.3.2. 1486234878Smonthadar */ 1487246499Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_OUTPUT, qwh->i_addr2, 1488246499Smonthadar "forward frame to DS, SA(%6D) DA(%6D)", 1489246499Smonthadar mc10->mc_addr6, ":", mc10->mc_addr5, ":"); 1490234878Smonthadar } 1491234878Smonthadar return (0); /* process locally */ 1492234878Smonthadar} 1493234878Smonthadar 1494234878Smonthadar/* 1495234878Smonthadar * Try to forward the group addressed data on to other mesh STAs, and 1496234878Smonthadar * also to the DS. 1497234878Smonthadar * 1498234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1499234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1500234878Smonthadar * < 0 means there was an error and data should be discarded 1501234878Smonthadar */ 1502234878Smonthadarstatic int 1503234878Smonthadarmesh_recv_group_data(struct ieee80211vap *vap, struct mbuf *m, 1504234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1505234878Smonthadar{ 1506234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1507234878Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1508234878Smonthadar 1509248069Sadrian /* This is called from the RX path - don't hold this lock */ 1510248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1511248069Sadrian 1512234878Smonthadar mesh_forward(vap, m, mc); 1513234878Smonthadar 1514234878Smonthadar if(mc->mc_ttl > 0) { 1515234878Smonthadar if (mc->mc_flags & IEEE80211_MESH_AE_01) { 1516234878Smonthadar /* 1517234878Smonthadar * Forward of MSDUs from the MBSS to DS group addressed 1518234878Smonthadar * (according to 13.11.3.2) 1519234878Smonthadar * This happens by delivering the packet, and a bridge 1520234878Smonthadar * will sent it on another port member. 1521234878Smonthadar */ 1522234892Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_GATE && 1523234878Smonthadar ms->ms_flags & IEEE80211_MESHFLAGS_FWD) 1524234878Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, 1525234878Smonthadar MC01(mc)->mc_addr4, "%s", 1526234878Smonthadar "forward from MBSS to the DS"); 1527234878Smonthadar } 1528234878Smonthadar } 1529234878Smonthadar return (0); /* process locally */ 1530234878Smonthadar#undef MC01 1531234878Smonthadar} 1532234878Smonthadar 1533234878Smonthadarstatic int 1534195618Srpaulomesh_input(struct ieee80211_node *ni, struct mbuf *m, int rssi, int nf) 1535195618Srpaulo{ 1536195618Srpaulo#define HAS_SEQ(type) ((type & 0x4) == 0) 1537234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1538234878Smonthadar#define MC10(mc) ((const struct ieee80211_meshcntl_ae10 *)mc) 1539195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 1540195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 1541195618Srpaulo struct ifnet *ifp = vap->iv_ifp; 1542195618Srpaulo struct ieee80211_frame *wh; 1543195618Srpaulo const struct ieee80211_meshcntl *mc; 1544234878Smonthadar int hdrspace, meshdrlen, need_tap, error; 1545234878Smonthadar uint8_t dir, type, subtype, ae; 1546195618Srpaulo uint32_t seq; 1547234878Smonthadar const uint8_t *addr; 1548234878Smonthadar uint8_t qos[2]; 1549195618Srpaulo ieee80211_seq rxseq; 1550195618Srpaulo 1551195618Srpaulo KASSERT(ni != NULL, ("null node")); 1552195618Srpaulo ni->ni_inact = ni->ni_inact_reload; 1553195618Srpaulo 1554195618Srpaulo need_tap = 1; /* mbuf need to be tapped. */ 1555195618Srpaulo type = -1; /* undefined */ 1556195618Srpaulo 1557248069Sadrian /* This is called from the RX path - don't hold this lock */ 1558248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1559248069Sadrian 1560195618Srpaulo if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) { 1561195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1562195618Srpaulo ni->ni_macaddr, NULL, 1563195618Srpaulo "too short (1): len %u", m->m_pkthdr.len); 1564195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1565195618Srpaulo goto out; 1566195618Srpaulo } 1567195618Srpaulo /* 1568195618Srpaulo * Bit of a cheat here, we use a pointer for a 3-address 1569195618Srpaulo * frame format but don't reference fields past outside 1570195618Srpaulo * ieee80211_frame_min w/o first validating the data is 1571195618Srpaulo * present. 1572195618Srpaulo */ 1573195618Srpaulo wh = mtod(m, struct ieee80211_frame *); 1574195618Srpaulo 1575195618Srpaulo if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != 1576195618Srpaulo IEEE80211_FC0_VERSION_0) { 1577195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1578195618Srpaulo ni->ni_macaddr, NULL, "wrong version %x", wh->i_fc[0]); 1579195618Srpaulo vap->iv_stats.is_rx_badversion++; 1580195618Srpaulo goto err; 1581195618Srpaulo } 1582195618Srpaulo dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1583195618Srpaulo type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1584195618Srpaulo subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1585195618Srpaulo if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { 1586195618Srpaulo IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi); 1587195618Srpaulo ni->ni_noise = nf; 1588195618Srpaulo if (HAS_SEQ(type)) { 1589195618Srpaulo uint8_t tid = ieee80211_gettid(wh); 1590195618Srpaulo 1591195618Srpaulo if (IEEE80211_QOS_HAS_SEQ(wh) && 1592195618Srpaulo TID_TO_WME_AC(tid) >= WME_AC_VI) 1593195618Srpaulo ic->ic_wme.wme_hipri_traffic++; 1594195618Srpaulo rxseq = le16toh(*(uint16_t *)wh->i_seq); 1595221418Sadrian if (! ieee80211_check_rxseq(ni, wh)) { 1596195618Srpaulo /* duplicate, discard */ 1597195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, 1598195618Srpaulo wh->i_addr1, "duplicate", 1599195618Srpaulo "seqno <%u,%u> fragno <%u,%u> tid %u", 1600195618Srpaulo rxseq >> IEEE80211_SEQ_SEQ_SHIFT, 1601195618Srpaulo ni->ni_rxseqs[tid] >> 1602195618Srpaulo IEEE80211_SEQ_SEQ_SHIFT, 1603195618Srpaulo rxseq & IEEE80211_SEQ_FRAG_MASK, 1604195618Srpaulo ni->ni_rxseqs[tid] & 1605195618Srpaulo IEEE80211_SEQ_FRAG_MASK, 1606195618Srpaulo tid); 1607195618Srpaulo vap->iv_stats.is_rx_dup++; 1608195618Srpaulo IEEE80211_NODE_STAT(ni, rx_dup); 1609195618Srpaulo goto out; 1610195618Srpaulo } 1611195618Srpaulo ni->ni_rxseqs[tid] = rxseq; 1612195618Srpaulo } 1613195618Srpaulo } 1614195618Srpaulo#ifdef IEEE80211_DEBUG 1615195618Srpaulo /* 1616195618Srpaulo * It's easier, but too expensive, to simulate different mesh 1617195618Srpaulo * topologies by consulting the ACL policy very early, so do this 1618195618Srpaulo * only under DEBUG. 1619195618Srpaulo * 1620195618Srpaulo * NB: this check is also done upon peering link initiation. 1621195618Srpaulo */ 1622228622Sbschmidt if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) { 1623195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL, 1624195618Srpaulo wh, NULL, "%s", "disallowed by ACL"); 1625195618Srpaulo vap->iv_stats.is_rx_acl++; 1626195618Srpaulo goto out; 1627195618Srpaulo } 1628195618Srpaulo#endif 1629195618Srpaulo switch (type) { 1630195618Srpaulo case IEEE80211_FC0_TYPE_DATA: 1631195618Srpaulo if (ni == vap->iv_bss) 1632195618Srpaulo goto out; 1633195618Srpaulo if (ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) { 1634195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 1635195618Srpaulo ni->ni_macaddr, NULL, 1636195618Srpaulo "peer link not yet established (%d)", 1637195618Srpaulo ni->ni_mlstate); 1638195618Srpaulo vap->iv_stats.is_mesh_nolink++; 1639195618Srpaulo goto out; 1640234878Smonthadar } 1641195618Srpaulo if (dir != IEEE80211_FC1_DIR_FROMDS && 1642195618Srpaulo dir != IEEE80211_FC1_DIR_DSTODS) { 1643195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1644195618Srpaulo wh, "data", "incorrect dir 0x%x", dir); 1645195618Srpaulo vap->iv_stats.is_rx_wrongdir++; 1646195618Srpaulo goto err; 1647195618Srpaulo } 1648232480Sadrian 1649232480Sadrian /* All Mesh data frames are QoS subtype */ 1650232480Sadrian if (!HAS_SEQ(type)) { 1651232480Sadrian IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1652232480Sadrian wh, "data", "incorrect subtype 0x%x", subtype); 1653232480Sadrian vap->iv_stats.is_rx_badsubtype++; 1654232480Sadrian goto err; 1655232480Sadrian } 1656232480Sadrian 1657232480Sadrian /* 1658232480Sadrian * Next up, any fragmentation. 1659232480Sadrian * XXX: we defrag before we even try to forward, 1660232480Sadrian * Mesh Control field is not present in sub-sequent 1661232480Sadrian * fragmented frames. This is in contrast to Draft 4.0. 1662232480Sadrian */ 1663232480Sadrian hdrspace = ieee80211_hdrspace(ic, wh); 1664232480Sadrian if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1665232480Sadrian m = ieee80211_defrag(ni, m, hdrspace); 1666232480Sadrian if (m == NULL) { 1667232480Sadrian /* Fragment dropped or frame not complete yet */ 1668232480Sadrian goto out; 1669232480Sadrian } 1670232480Sadrian } 1671232480Sadrian wh = mtod(m, struct ieee80211_frame *); /* NB: after defrag */ 1672232480Sadrian 1673232480Sadrian /* 1674232480Sadrian * Now we have a complete Mesh Data frame. 1675232480Sadrian */ 1676232480Sadrian 1677232480Sadrian /* 1678232480Sadrian * Only fromDStoDS data frames use 4 address qos frames 1679232480Sadrian * as specified in amendment. Otherwise addr4 is located 1680232480Sadrian * in the Mesh Control field and a 3 address qos frame 1681232480Sadrian * is used. 1682232480Sadrian */ 1683232480Sadrian if (IEEE80211_IS_DSTODS(wh)) 1684232480Sadrian *(uint16_t *)qos = *(uint16_t *) 1685232480Sadrian ((struct ieee80211_qosframe_addr4 *)wh)->i_qos; 1686232480Sadrian else 1687232480Sadrian *(uint16_t *)qos = *(uint16_t *) 1688232480Sadrian ((struct ieee80211_qosframe *)wh)->i_qos; 1689232480Sadrian 1690232480Sadrian /* 1691232480Sadrian * NB: The mesh STA sets the Mesh Control Present 1692232480Sadrian * subfield to 1 in the Mesh Data frame containing 1693232480Sadrian * an unfragmented MSDU, an A-MSDU, or the first 1694232480Sadrian * fragment of an MSDU. 1695232480Sadrian * After defrag it should always be present. 1696232480Sadrian */ 1697232480Sadrian if (!(qos[1] & IEEE80211_QOS_MC)) { 1698232480Sadrian IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 1699232480Sadrian ni->ni_macaddr, NULL, 1700232480Sadrian "%s", "Mesh control field not present"); 1701232480Sadrian vap->iv_stats.is_rx_elem_missing++; /* XXX: kinda */ 1702232480Sadrian goto err; 1703232480Sadrian } 1704232480Sadrian 1705195618Srpaulo /* pull up enough to get to the mesh control */ 1706195618Srpaulo if (m->m_len < hdrspace + sizeof(struct ieee80211_meshcntl) && 1707195618Srpaulo (m = m_pullup(m, hdrspace + 1708195618Srpaulo sizeof(struct ieee80211_meshcntl))) == NULL) { 1709195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1710195618Srpaulo ni->ni_macaddr, NULL, 1711195618Srpaulo "data too short: expecting %u", hdrspace); 1712195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1713195618Srpaulo goto out; /* XXX */ 1714195618Srpaulo } 1715195618Srpaulo /* 1716195618Srpaulo * Now calculate the full extent of the headers. Note 1717195784Srpaulo * mesh_decap will pull up anything we didn't get 1718195618Srpaulo * above when it strips the 802.11 headers. 1719195618Srpaulo */ 1720195618Srpaulo mc = (const struct ieee80211_meshcntl *) 1721195618Srpaulo (mtod(m, const uint8_t *) + hdrspace); 1722234878Smonthadar ae = mc->mc_flags & IEEE80211_MESH_AE_MASK; 1723195784Srpaulo meshdrlen = sizeof(struct ieee80211_meshcntl) + 1724234878Smonthadar ae * IEEE80211_ADDR_LEN; 1725195784Srpaulo hdrspace += meshdrlen; 1726234878Smonthadar 1727234878Smonthadar /* pull complete hdrspace = ieee80211_hdrspace + meshcontrol */ 1728234878Smonthadar if ((meshdrlen > sizeof(struct ieee80211_meshcntl)) && 1729234878Smonthadar (m->m_len < hdrspace) && 1730234878Smonthadar ((m = m_pullup(m, hdrspace)) == NULL)) { 1731234878Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1732234878Smonthadar ni->ni_macaddr, NULL, 1733234878Smonthadar "data too short: expecting %u", hdrspace); 1734234878Smonthadar vap->iv_stats.is_rx_tooshort++; 1735234878Smonthadar goto out; /* XXX */ 1736234878Smonthadar } 1737234878Smonthadar /* XXX: are we sure there is no reallocating after m_pullup? */ 1738234878Smonthadar 1739195618Srpaulo seq = LE_READ_4(mc->mc_seq); 1740195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1741195618Srpaulo addr = wh->i_addr3; 1742234878Smonthadar else if (ae == IEEE80211_MESH_AE_01) 1743234878Smonthadar addr = MC01(mc)->mc_addr4; 1744195618Srpaulo else 1745195618Srpaulo addr = ((struct ieee80211_qosframe_addr4 *)wh)->i_addr4; 1746195618Srpaulo if (IEEE80211_ADDR_EQ(vap->iv_myaddr, addr)) { 1747195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, 1748195618Srpaulo addr, "data", "%s", "not to me"); 1749195618Srpaulo vap->iv_stats.is_rx_wrongbss++; /* XXX kinda */ 1750195618Srpaulo goto out; 1751195618Srpaulo } 1752195618Srpaulo if (mesh_checkpseq(vap, addr, seq) != 0) { 1753195618Srpaulo vap->iv_stats.is_rx_dup++; 1754195618Srpaulo goto out; 1755195618Srpaulo } 1756195618Srpaulo 1757234878Smonthadar /* This code "routes" the frame to the right control path */ 1758234878Smonthadar if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1759234878Smonthadar if (IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr3)) 1760234878Smonthadar error = 1761234878Smonthadar mesh_recv_indiv_data_to_me(vap, m, wh, mc); 1762234878Smonthadar else if (IEEE80211_IS_MULTICAST(wh->i_addr3)) 1763234878Smonthadar error = mesh_recv_group_data(vap, m, wh, mc); 1764234878Smonthadar else 1765234878Smonthadar error = mesh_recv_indiv_data_to_fwrd(vap, m, 1766234878Smonthadar wh, mc); 1767234878Smonthadar } else 1768234878Smonthadar error = mesh_recv_group_data(vap, m, wh, mc); 1769234878Smonthadar if (error < 0) 1770234878Smonthadar goto err; 1771234878Smonthadar else if (error > 0) 1772234878Smonthadar goto out; 1773195618Srpaulo 1774195618Srpaulo if (ieee80211_radiotap_active_vap(vap)) 1775195618Srpaulo ieee80211_radiotap_rx(vap, m); 1776195618Srpaulo need_tap = 0; 1777195618Srpaulo 1778195618Srpaulo /* 1779195618Srpaulo * Finally, strip the 802.11 header. 1780195618Srpaulo */ 1781195784Srpaulo m = mesh_decap(vap, m, hdrspace, meshdrlen); 1782195618Srpaulo if (m == NULL) { 1783195618Srpaulo /* XXX mask bit to check for both */ 1784195618Srpaulo /* don't count Null data frames as errors */ 1785195618Srpaulo if (subtype == IEEE80211_FC0_SUBTYPE_NODATA || 1786195618Srpaulo subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL) 1787195618Srpaulo goto out; 1788195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, 1789195618Srpaulo ni->ni_macaddr, "data", "%s", "decap error"); 1790195618Srpaulo vap->iv_stats.is_rx_decap++; 1791195618Srpaulo IEEE80211_NODE_STAT(ni, rx_decap); 1792195618Srpaulo goto err; 1793195618Srpaulo } 1794232480Sadrian if (qos[0] & IEEE80211_QOS_AMSDU) { 1795195618Srpaulo m = ieee80211_decap_amsdu(ni, m); 1796195618Srpaulo if (m == NULL) 1797195618Srpaulo return IEEE80211_FC0_TYPE_DATA; 1798195784Srpaulo } 1799195618Srpaulo ieee80211_deliver_data(vap, ni, m); 1800195618Srpaulo return type; 1801195618Srpaulo case IEEE80211_FC0_TYPE_MGT: 1802195618Srpaulo vap->iv_stats.is_rx_mgmt++; 1803195618Srpaulo IEEE80211_NODE_STAT(ni, rx_mgmt); 1804195618Srpaulo if (dir != IEEE80211_FC1_DIR_NODS) { 1805195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1806195618Srpaulo wh, "mgt", "incorrect dir 0x%x", dir); 1807195618Srpaulo vap->iv_stats.is_rx_wrongdir++; 1808195618Srpaulo goto err; 1809195618Srpaulo } 1810195618Srpaulo if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) { 1811195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1812195618Srpaulo ni->ni_macaddr, "mgt", "too short: len %u", 1813195618Srpaulo m->m_pkthdr.len); 1814195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1815195618Srpaulo goto out; 1816195618Srpaulo } 1817195618Srpaulo#ifdef IEEE80211_DEBUG 1818195618Srpaulo if ((ieee80211_msg_debug(vap) && 1819195618Srpaulo (vap->iv_ic->ic_flags & IEEE80211_F_SCAN)) || 1820195618Srpaulo ieee80211_msg_dumppkts(vap)) { 1821195618Srpaulo if_printf(ifp, "received %s from %s rssi %d\n", 1822195618Srpaulo ieee80211_mgt_subtype_name[subtype >> 1823195618Srpaulo IEEE80211_FC0_SUBTYPE_SHIFT], 1824195618Srpaulo ether_sprintf(wh->i_addr2), rssi); 1825195618Srpaulo } 1826195618Srpaulo#endif 1827262007Skevlo if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1828195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1829195618Srpaulo wh, NULL, "%s", "WEP set but not permitted"); 1830195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; /* XXX */ 1831195618Srpaulo goto out; 1832195618Srpaulo } 1833195618Srpaulo vap->iv_recv_mgmt(ni, m, subtype, rssi, nf); 1834195618Srpaulo goto out; 1835195618Srpaulo case IEEE80211_FC0_TYPE_CTL: 1836195618Srpaulo vap->iv_stats.is_rx_ctl++; 1837195618Srpaulo IEEE80211_NODE_STAT(ni, rx_ctrl); 1838195618Srpaulo goto out; 1839195618Srpaulo default: 1840195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1841195618Srpaulo wh, "bad", "frame type 0x%x", type); 1842195618Srpaulo /* should not come here */ 1843195618Srpaulo break; 1844195618Srpaulo } 1845195618Srpauloerr: 1846195618Srpaulo ifp->if_ierrors++; 1847195618Srpauloout: 1848195618Srpaulo if (m != NULL) { 1849195618Srpaulo if (need_tap && ieee80211_radiotap_active_vap(vap)) 1850195618Srpaulo ieee80211_radiotap_rx(vap, m); 1851195618Srpaulo m_freem(m); 1852195618Srpaulo } 1853195618Srpaulo return type; 1854234878Smonthadar#undef HAS_SEQ 1855234878Smonthadar#undef MC01 1856234878Smonthadar#undef MC10 1857195618Srpaulo} 1858195618Srpaulo 1859195618Srpaulostatic void 1860195618Srpaulomesh_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype, 1861195618Srpaulo int rssi, int nf) 1862195618Srpaulo{ 1863195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 1864195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 1865195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 1866195618Srpaulo struct ieee80211_frame *wh; 1867234877Smonthadar struct ieee80211_mesh_route *rt; 1868195618Srpaulo uint8_t *frm, *efrm; 1869195618Srpaulo 1870195618Srpaulo wh = mtod(m0, struct ieee80211_frame *); 1871195618Srpaulo frm = (uint8_t *)&wh[1]; 1872195618Srpaulo efrm = mtod(m0, uint8_t *) + m0->m_len; 1873195618Srpaulo switch (subtype) { 1874195618Srpaulo case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 1875195618Srpaulo case IEEE80211_FC0_SUBTYPE_BEACON: 1876195618Srpaulo { 1877195618Srpaulo struct ieee80211_scanparams scan; 1878195618Srpaulo /* 1879195618Srpaulo * We process beacon/probe response 1880195618Srpaulo * frames to discover neighbors. 1881195618Srpaulo */ 1882195618Srpaulo if (ieee80211_parse_beacon(ni, m0, &scan) != 0) 1883195618Srpaulo return; 1884195618Srpaulo /* 1885195618Srpaulo * Count frame now that we know it's to be processed. 1886195618Srpaulo */ 1887195618Srpaulo if (subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 1888195618Srpaulo vap->iv_stats.is_rx_beacon++; /* XXX remove */ 1889195618Srpaulo IEEE80211_NODE_STAT(ni, rx_beacons); 1890195618Srpaulo } else 1891195618Srpaulo IEEE80211_NODE_STAT(ni, rx_proberesp); 1892195618Srpaulo /* 1893195618Srpaulo * If scanning, just pass information to the scan module. 1894195618Srpaulo */ 1895195618Srpaulo if (ic->ic_flags & IEEE80211_F_SCAN) { 1896195618Srpaulo if (ic->ic_flags_ext & IEEE80211_FEXT_PROBECHAN) { 1897195618Srpaulo /* 1898195618Srpaulo * Actively scanning a channel marked passive; 1899195618Srpaulo * send a probe request now that we know there 1900195618Srpaulo * is 802.11 traffic present. 1901195618Srpaulo * 1902195618Srpaulo * XXX check if the beacon we recv'd gives 1903195618Srpaulo * us what we need and suppress the probe req 1904195618Srpaulo */ 1905195618Srpaulo ieee80211_probe_curchan(vap, 1); 1906195618Srpaulo ic->ic_flags_ext &= ~IEEE80211_FEXT_PROBECHAN; 1907195618Srpaulo } 1908195618Srpaulo ieee80211_add_scan(vap, &scan, wh, 1909195618Srpaulo subtype, rssi, nf); 1910195618Srpaulo return; 1911195618Srpaulo } 1912195618Srpaulo 1913195618Srpaulo /* The rest of this code assumes we are running */ 1914195618Srpaulo if (vap->iv_state != IEEE80211_S_RUN) 1915195618Srpaulo return; 1916195618Srpaulo /* 1917195618Srpaulo * Ignore non-mesh STAs. 1918195618Srpaulo */ 1919195618Srpaulo if ((scan.capinfo & 1920195618Srpaulo (IEEE80211_CAPINFO_ESS|IEEE80211_CAPINFO_IBSS)) || 1921195618Srpaulo scan.meshid == NULL || scan.meshconf == NULL) { 1922195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1923195618Srpaulo wh, "beacon", "%s", "not a mesh sta"); 1924195618Srpaulo vap->iv_stats.is_mesh_wrongmesh++; 1925195618Srpaulo return; 1926195618Srpaulo } 1927195618Srpaulo /* 1928195618Srpaulo * Ignore STAs for other mesh networks. 1929195618Srpaulo */ 1930195618Srpaulo if (memcmp(scan.meshid+2, ms->ms_id, ms->ms_idlen) != 0 || 1931195618Srpaulo mesh_verify_meshconf(vap, scan.meshconf)) { 1932195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1933195618Srpaulo wh, "beacon", "%s", "not for our mesh"); 1934195618Srpaulo vap->iv_stats.is_mesh_wrongmesh++; 1935195618Srpaulo return; 1936195618Srpaulo } 1937195618Srpaulo /* 1938195618Srpaulo * Peer only based on the current ACL policy. 1939195618Srpaulo */ 1940228622Sbschmidt if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) { 1941195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL, 1942195618Srpaulo wh, NULL, "%s", "disallowed by ACL"); 1943195618Srpaulo vap->iv_stats.is_rx_acl++; 1944195618Srpaulo return; 1945195618Srpaulo } 1946195618Srpaulo /* 1947195618Srpaulo * Do neighbor discovery. 1948195618Srpaulo */ 1949195618Srpaulo if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_macaddr)) { 1950195618Srpaulo /* 1951195618Srpaulo * Create a new entry in the neighbor table. 1952195618Srpaulo */ 1953195618Srpaulo ni = ieee80211_add_neighbor(vap, wh, &scan); 1954195618Srpaulo } 1955195618Srpaulo /* 1956195618Srpaulo * Automatically peer with discovered nodes if possible. 1957195618Srpaulo */ 1958195618Srpaulo if (ni != vap->iv_bss && 1959234877Smonthadar (ms->ms_flags & IEEE80211_MESHFLAGS_AP)) { 1960234877Smonthadar switch (ni->ni_mlstate) { 1961234877Smonthadar case IEEE80211_NODE_MESH_IDLE: 1962234877Smonthadar { 1963234877Smonthadar uint16_t args[1]; 1964195618Srpaulo 1965246497Smonthadar /* Wait for backoff callout to reset counter */ 1966246497Smonthadar if (ni->ni_mlhcnt >= ieee80211_mesh_maxholding) 1967246497Smonthadar return; 1968246497Smonthadar 1969234877Smonthadar ni->ni_mlpid = mesh_generateid(vap); 1970234877Smonthadar if (ni->ni_mlpid == 0) 1971234877Smonthadar return; 1972234877Smonthadar mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENSNT); 1973234877Smonthadar args[0] = ni->ni_mlpid; 1974234877Smonthadar ieee80211_send_action(ni, 1975234877Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 1976234877Smonthadar IEEE80211_ACTION_MESHPEERING_OPEN, args); 1977234877Smonthadar ni->ni_mlrcnt = 0; 1978234877Smonthadar mesh_peer_timeout_setup(ni); 1979234877Smonthadar break; 1980234877Smonthadar } 1981234877Smonthadar case IEEE80211_NODE_MESH_ESTABLISHED: 1982234877Smonthadar { 1983234877Smonthadar /* 1984234877Smonthadar * Valid beacon from a peer mesh STA 1985234877Smonthadar * bump TA lifetime 1986234877Smonthadar */ 1987234877Smonthadar rt = ieee80211_mesh_rt_find(vap, wh->i_addr2); 1988234877Smonthadar if(rt != NULL) { 1989234877Smonthadar ieee80211_mesh_rt_update(rt, 1990234879Smonthadar ticks_to_msecs( 1991234879Smonthadar ms->ms_ppath->mpp_inact)); 1992234877Smonthadar } 1993234877Smonthadar break; 1994234877Smonthadar } 1995234877Smonthadar default: 1996234877Smonthadar break; /* ignore */ 1997234877Smonthadar } 1998195618Srpaulo } 1999195618Srpaulo break; 2000195618Srpaulo } 2001195618Srpaulo case IEEE80211_FC0_SUBTYPE_PROBE_REQ: 2002195618Srpaulo { 2003195618Srpaulo uint8_t *ssid, *meshid, *rates, *xrates; 2004195618Srpaulo uint8_t *sfrm; 2005195618Srpaulo 2006195618Srpaulo if (vap->iv_state != IEEE80211_S_RUN) { 2007195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2008195618Srpaulo wh, NULL, "wrong state %s", 2009195618Srpaulo ieee80211_state_name[vap->iv_state]); 2010195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2011195618Srpaulo return; 2012195618Srpaulo } 2013195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr2)) { 2014195618Srpaulo /* frame must be directed */ 2015195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2016195618Srpaulo wh, NULL, "%s", "not unicast"); 2017195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; /* XXX stat */ 2018195618Srpaulo return; 2019195618Srpaulo } 2020195618Srpaulo /* 2021195618Srpaulo * prreq frame format 2022195618Srpaulo * [tlv] ssid 2023195618Srpaulo * [tlv] supported rates 2024195618Srpaulo * [tlv] extended supported rates 2025195618Srpaulo * [tlv] mesh id 2026195618Srpaulo */ 2027195618Srpaulo ssid = meshid = rates = xrates = NULL; 2028195618Srpaulo sfrm = frm; 2029195618Srpaulo while (efrm - frm > 1) { 2030195618Srpaulo IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); 2031195618Srpaulo switch (*frm) { 2032195618Srpaulo case IEEE80211_ELEMID_SSID: 2033195618Srpaulo ssid = frm; 2034195618Srpaulo break; 2035195618Srpaulo case IEEE80211_ELEMID_RATES: 2036195618Srpaulo rates = frm; 2037195618Srpaulo break; 2038195618Srpaulo case IEEE80211_ELEMID_XRATES: 2039195618Srpaulo xrates = frm; 2040195618Srpaulo break; 2041195618Srpaulo case IEEE80211_ELEMID_MESHID: 2042195618Srpaulo meshid = frm; 2043195618Srpaulo break; 2044195618Srpaulo } 2045217590Sbschmidt frm += frm[1] + 2; 2046195618Srpaulo } 2047195618Srpaulo IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN, return); 2048195618Srpaulo IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE, return); 2049195618Srpaulo if (xrates != NULL) 2050195618Srpaulo IEEE80211_VERIFY_ELEMENT(xrates, 2051195618Srpaulo IEEE80211_RATE_MAXSIZE - rates[1], return); 2052203423Srpaulo if (meshid != NULL) { 2053195618Srpaulo IEEE80211_VERIFY_ELEMENT(meshid, 2054195618Srpaulo IEEE80211_MESHID_LEN, return); 2055203423Srpaulo /* NB: meshid, not ssid */ 2056203423Srpaulo IEEE80211_VERIFY_SSID(vap->iv_bss, meshid, return); 2057203423Srpaulo } 2058195618Srpaulo 2059195618Srpaulo /* XXX find a better class or define it's own */ 2060195618Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2, 2061195618Srpaulo "%s", "recv probe req"); 2062195618Srpaulo /* 2063195618Srpaulo * Some legacy 11b clients cannot hack a complete 2064195618Srpaulo * probe response frame. When the request includes 2065195618Srpaulo * only a bare-bones rate set, communicate this to 2066195618Srpaulo * the transmit side. 2067195618Srpaulo */ 2068195618Srpaulo ieee80211_send_proberesp(vap, wh->i_addr2, 0); 2069195618Srpaulo break; 2070195618Srpaulo } 2071218927Sbschmidt 2072195618Srpaulo case IEEE80211_FC0_SUBTYPE_ACTION: 2073218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ACTION_NOACK: 2074195618Srpaulo if (ni == vap->iv_bss) { 2075218958Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2076195618Srpaulo wh, NULL, "%s", "unknown node"); 2077195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2078218958Sbschmidt } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1) && 2079195618Srpaulo !IEEE80211_IS_MULTICAST(wh->i_addr1)) { 2080218958Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2081218958Sbschmidt wh, NULL, "%s", "not for us"); 2082195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2083218958Sbschmidt } else if (vap->iv_state != IEEE80211_S_RUN) { 2084218927Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2085218927Sbschmidt wh, NULL, "wrong state %s", 2086218927Sbschmidt ieee80211_state_name[vap->iv_state]); 2087218927Sbschmidt vap->iv_stats.is_rx_mgtdiscard++; 2088218958Sbschmidt } else { 2089218958Sbschmidt if (ieee80211_parse_action(ni, m0) == 0) 2090218958Sbschmidt (void)ic->ic_recv_action(ni, wh, frm, efrm); 2091218927Sbschmidt } 2092195618Srpaulo break; 2093218927Sbschmidt 2094195618Srpaulo case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: 2095218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 2096195618Srpaulo case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: 2097195618Srpaulo case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 2098218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ATIM: 2099218927Sbschmidt case IEEE80211_FC0_SUBTYPE_DISASSOC: 2100218927Sbschmidt case IEEE80211_FC0_SUBTYPE_AUTH: 2101195618Srpaulo case IEEE80211_FC0_SUBTYPE_DEAUTH: 2102195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2103195618Srpaulo wh, NULL, "%s", "not handled"); 2104195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2105218927Sbschmidt break; 2106218927Sbschmidt 2107195618Srpaulo default: 2108195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 2109195618Srpaulo wh, "mgt", "subtype 0x%x not handled", subtype); 2110195618Srpaulo vap->iv_stats.is_rx_badsubtype++; 2111195618Srpaulo break; 2112195618Srpaulo } 2113195618Srpaulo} 2114195618Srpaulo 2115205277Srpaulostatic void 2116205277Srpaulomesh_recv_ctl(struct ieee80211_node *ni, struct mbuf *m, int subtype) 2117205277Srpaulo{ 2118205277Srpaulo 2119205277Srpaulo switch (subtype) { 2120205277Srpaulo case IEEE80211_FC0_SUBTYPE_BAR: 2121205277Srpaulo ieee80211_recv_bar(ni, m); 2122205277Srpaulo break; 2123205277Srpaulo } 2124205277Srpaulo} 2125205277Srpaulo 2126195618Srpaulo/* 2127234876Smonthadar * Parse meshpeering action ie's for MPM frames 2128195618Srpaulo */ 2129195618Srpaulostatic const struct ieee80211_meshpeer_ie * 2130195618Srpaulomesh_parse_meshpeering_action(struct ieee80211_node *ni, 2131195618Srpaulo const struct ieee80211_frame *wh, /* XXX for VERIFY_LENGTH */ 2132195618Srpaulo const uint8_t *frm, const uint8_t *efrm, 2133197413Srpaulo struct ieee80211_meshpeer_ie *mp, uint8_t subtype) 2134195618Srpaulo{ 2135195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2136195618Srpaulo const struct ieee80211_meshpeer_ie *mpie; 2137234876Smonthadar uint16_t args[3]; 2138197413Srpaulo const uint8_t *meshid, *meshconf, *meshpeer; 2139234876Smonthadar uint8_t sendclose = 0; /* 1 = MPM frame rejected, close will be sent */ 2140195618Srpaulo 2141197413Srpaulo meshid = meshconf = meshpeer = NULL; 2142195618Srpaulo while (efrm - frm > 1) { 2143195618Srpaulo IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return NULL); 2144195618Srpaulo switch (*frm) { 2145195618Srpaulo case IEEE80211_ELEMID_MESHID: 2146195618Srpaulo meshid = frm; 2147195618Srpaulo break; 2148195618Srpaulo case IEEE80211_ELEMID_MESHCONF: 2149195618Srpaulo meshconf = frm; 2150195618Srpaulo break; 2151195618Srpaulo case IEEE80211_ELEMID_MESHPEER: 2152195618Srpaulo meshpeer = frm; 2153195618Srpaulo mpie = (const struct ieee80211_meshpeer_ie *) frm; 2154195618Srpaulo memset(mp, 0, sizeof(*mp)); 2155234876Smonthadar mp->peer_len = mpie->peer_len; 2156234875Smonthadar mp->peer_proto = LE_READ_2(&mpie->peer_proto); 2157195618Srpaulo mp->peer_llinkid = LE_READ_2(&mpie->peer_llinkid); 2158234875Smonthadar switch (subtype) { 2159234875Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 2160234875Smonthadar mp->peer_linkid = 2161234875Smonthadar LE_READ_2(&mpie->peer_linkid); 2162234875Smonthadar break; 2163234875Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 2164234875Smonthadar /* NB: peer link ID is optional */ 2165234875Smonthadar if (mpie->peer_len == 2166234875Smonthadar (IEEE80211_MPM_BASE_SZ + 2)) { 2167234875Smonthadar mp->peer_linkid = 0; 2168234875Smonthadar mp->peer_rcode = 2169234875Smonthadar LE_READ_2(&mpie->peer_linkid); 2170234875Smonthadar } else { 2171234875Smonthadar mp->peer_linkid = 2172234875Smonthadar LE_READ_2(&mpie->peer_linkid); 2173234875Smonthadar mp->peer_rcode = 2174234875Smonthadar LE_READ_2(&mpie->peer_rcode); 2175234875Smonthadar } 2176234875Smonthadar break; 2177195618Srpaulo } 2178195618Srpaulo break; 2179195618Srpaulo } 2180195618Srpaulo frm += frm[1] + 2; 2181195618Srpaulo } 2182195618Srpaulo 2183195618Srpaulo /* 2184234876Smonthadar * Verify the contents of the frame. 2185234876Smonthadar * If it fails validation, close the peer link. 2186195618Srpaulo */ 2187234876Smonthadar if (mesh_verify_meshpeer(vap, subtype, (const uint8_t *)mp)) { 2188234876Smonthadar sendclose = 1; 2189234876Smonthadar IEEE80211_DISCARD(vap, 2190234876Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2191234876Smonthadar wh, NULL, "%s", "MPM validation failed"); 2192234876Smonthadar } 2193195618Srpaulo 2194234876Smonthadar /* If meshid is not the same reject any frames type. */ 2195234876Smonthadar if (sendclose == 0 && mesh_verify_meshid(vap, meshid)) { 2196234876Smonthadar sendclose = 1; 2197234876Smonthadar IEEE80211_DISCARD(vap, 2198234876Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2199234876Smonthadar wh, NULL, "%s", "not for our mesh"); 2200234876Smonthadar if (subtype == IEEE80211_ACTION_MESHPEERING_CLOSE) { 2201234876Smonthadar /* 2202234876Smonthadar * Standard not clear about this, if we dont ignore 2203234876Smonthadar * there will be an endless loop between nodes sending 2204234876Smonthadar * CLOSE frames between each other with wrong meshid. 2205234876Smonthadar * Discard and timers will bring FSM to IDLE state. 2206234876Smonthadar */ 2207234876Smonthadar return NULL; 2208234876Smonthadar } 2209234876Smonthadar } 2210234876Smonthadar 2211234876Smonthadar /* 2212234876Smonthadar * Close frames are accepted if meshid is the same. 2213234876Smonthadar * Verify the other two types. 2214234876Smonthadar */ 2215234876Smonthadar if (sendclose == 0 && subtype != IEEE80211_ACTION_MESHPEERING_CLOSE && 2216195618Srpaulo mesh_verify_meshconf(vap, meshconf)) { 2217234876Smonthadar sendclose = 1; 2218195618Srpaulo IEEE80211_DISCARD(vap, 2219195618Srpaulo IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2220234876Smonthadar wh, NULL, "%s", "configuration missmatch"); 2221234876Smonthadar } 2222234876Smonthadar 2223234876Smonthadar if (sendclose) { 2224195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2225195618Srpaulo switch (ni->ni_mlstate) { 2226195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2227195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2228195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2229195618Srpaulo /* ignore */ 2230195618Srpaulo break; 2231195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2232195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2233195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2234195618Srpaulo args[0] = ni->ni_mlpid; 2235195618Srpaulo args[1] = ni->ni_mllid; 2236234876Smonthadar /* Reason codes for rejection */ 2237234876Smonthadar switch (subtype) { 2238234876Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 2239234876Smonthadar args[2] = IEEE80211_REASON_MESH_CPVIOLATION; 2240234876Smonthadar break; 2241234876Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 2242234876Smonthadar args[2] = IEEE80211_REASON_MESH_INCONS_PARAMS; 2243234876Smonthadar break; 2244234876Smonthadar } 2245195618Srpaulo ieee80211_send_action(ni, 2246234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2247195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2248195618Srpaulo args); 2249195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2250195618Srpaulo mesh_peer_timeout_setup(ni); 2251195618Srpaulo break; 2252195618Srpaulo } 2253195618Srpaulo return NULL; 2254195618Srpaulo } 2255234876Smonthadar 2256195618Srpaulo return (const struct ieee80211_meshpeer_ie *) mp; 2257195618Srpaulo} 2258195618Srpaulo 2259195618Srpaulostatic int 2260195618Srpaulomesh_recv_action_meshpeering_open(struct ieee80211_node *ni, 2261195618Srpaulo const struct ieee80211_frame *wh, 2262195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2263195618Srpaulo{ 2264195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2265234876Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 2266195618Srpaulo struct ieee80211_meshpeer_ie ie; 2267195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer; 2268195618Srpaulo uint16_t args[3]; 2269195618Srpaulo 2270195618Srpaulo /* +2+2 for action + code + capabilites */ 2271197413Srpaulo meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2, efrm, &ie, 2272197413Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN); 2273195618Srpaulo if (meshpeer == NULL) { 2274195618Srpaulo return 0; 2275195618Srpaulo } 2276195618Srpaulo 2277195618Srpaulo /* XXX move up */ 2278195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2279195618Srpaulo "recv PEER OPEN, lid 0x%x", meshpeer->peer_llinkid); 2280195618Srpaulo 2281195618Srpaulo switch (ni->ni_mlstate) { 2282195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2283234876Smonthadar /* Reject open request if reached our maximum neighbor count */ 2284234876Smonthadar if (ms->ms_neighbors >= IEEE80211_MESH_MAX_NEIGHBORS) { 2285234876Smonthadar args[0] = meshpeer->peer_llinkid; 2286234876Smonthadar args[1] = 0; 2287234876Smonthadar args[2] = IEEE80211_REASON_MESH_MAX_PEERS; 2288234876Smonthadar ieee80211_send_action(ni, 2289234876Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2290234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, 2291234876Smonthadar args); 2292234876Smonthadar /* stay in IDLE state */ 2293234876Smonthadar return (0); 2294234876Smonthadar } 2295234876Smonthadar /* Open frame accepted */ 2296195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV); 2297195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2298195618Srpaulo ni->ni_mlpid = mesh_generateid(vap); 2299195618Srpaulo if (ni->ni_mlpid == 0) 2300195618Srpaulo return 0; /* XXX */ 2301195618Srpaulo args[0] = ni->ni_mlpid; 2302195618Srpaulo /* Announce we're open too... */ 2303195618Srpaulo ieee80211_send_action(ni, 2304234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2305195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, args); 2306195618Srpaulo /* ...and confirm the link. */ 2307195618Srpaulo args[0] = ni->ni_mlpid; 2308195618Srpaulo args[1] = ni->ni_mllid; 2309195618Srpaulo ieee80211_send_action(ni, 2310234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2311195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2312195618Srpaulo args); 2313195618Srpaulo mesh_peer_timeout_setup(ni); 2314195618Srpaulo break; 2315195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2316195618Srpaulo /* Wrong Link ID */ 2317195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2318195618Srpaulo args[0] = ni->ni_mllid; 2319195618Srpaulo args[1] = ni->ni_mlpid; 2320195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2321195618Srpaulo ieee80211_send_action(ni, 2322234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2323195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2324195618Srpaulo args); 2325195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2326195618Srpaulo mesh_peer_timeout_setup(ni); 2327195618Srpaulo break; 2328195618Srpaulo } 2329195618Srpaulo /* Duplicate open, confirm again. */ 2330195618Srpaulo args[0] = ni->ni_mlpid; 2331195618Srpaulo args[1] = ni->ni_mllid; 2332195618Srpaulo ieee80211_send_action(ni, 2333234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2334195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2335195618Srpaulo args); 2336195618Srpaulo break; 2337195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2338195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2339195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV); 2340195618Srpaulo args[0] = ni->ni_mlpid; 2341195618Srpaulo args[1] = ni->ni_mllid; 2342195618Srpaulo ieee80211_send_action(ni, 2343234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2344195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2345195618Srpaulo args); 2346195618Srpaulo /* NB: don't setup/clear any timeout */ 2347195618Srpaulo break; 2348195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2349195618Srpaulo if (ni->ni_mlpid != meshpeer->peer_linkid || 2350195618Srpaulo ni->ni_mllid != meshpeer->peer_llinkid) { 2351195618Srpaulo args[0] = ni->ni_mlpid; 2352195618Srpaulo args[1] = ni->ni_mllid; 2353195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2354195618Srpaulo ieee80211_send_action(ni, 2355234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2356195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2357195618Srpaulo args); 2358195618Srpaulo mesh_linkchange(ni, 2359195618Srpaulo IEEE80211_NODE_MESH_HOLDING); 2360195618Srpaulo mesh_peer_timeout_setup(ni); 2361195618Srpaulo break; 2362195618Srpaulo } 2363195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED); 2364195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2365195618Srpaulo args[0] = ni->ni_mlpid; 2366195618Srpaulo args[1] = ni->ni_mllid; 2367195618Srpaulo ieee80211_send_action(ni, 2368234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2369195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2370195618Srpaulo args); 2371195618Srpaulo mesh_peer_timeout_stop(ni); 2372195618Srpaulo break; 2373195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2374195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2375195618Srpaulo args[0] = ni->ni_mllid; 2376195618Srpaulo args[1] = ni->ni_mlpid; 2377195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2378195618Srpaulo ieee80211_send_action(ni, 2379234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2380195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2381195618Srpaulo args); 2382195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2383195618Srpaulo mesh_peer_timeout_setup(ni); 2384195618Srpaulo break; 2385195618Srpaulo } 2386195618Srpaulo args[0] = ni->ni_mlpid; 2387195618Srpaulo args[1] = ni->ni_mllid; 2388195618Srpaulo ieee80211_send_action(ni, 2389234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2390195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2391195618Srpaulo args); 2392195618Srpaulo break; 2393195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2394195618Srpaulo args[0] = ni->ni_mlpid; 2395195618Srpaulo args[1] = meshpeer->peer_llinkid; 2396234876Smonthadar /* Standard not clear about what the reaason code should be */ 2397234876Smonthadar args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2398195618Srpaulo ieee80211_send_action(ni, 2399234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2400195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2401195618Srpaulo args); 2402195618Srpaulo break; 2403195618Srpaulo } 2404195618Srpaulo return 0; 2405195618Srpaulo} 2406195618Srpaulo 2407195618Srpaulostatic int 2408195618Srpaulomesh_recv_action_meshpeering_confirm(struct ieee80211_node *ni, 2409195618Srpaulo const struct ieee80211_frame *wh, 2410195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2411195618Srpaulo{ 2412195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2413195618Srpaulo struct ieee80211_meshpeer_ie ie; 2414195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer; 2415195618Srpaulo uint16_t args[3]; 2416195618Srpaulo 2417195618Srpaulo /* +2+2+2+2 for action + code + capabilites + status code + AID */ 2418197413Srpaulo meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2+2+2, efrm, &ie, 2419197413Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM); 2420195618Srpaulo if (meshpeer == NULL) { 2421195618Srpaulo return 0; 2422195618Srpaulo } 2423195618Srpaulo 2424195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2425195618Srpaulo "recv PEER CONFIRM, local id 0x%x, peer id 0x%x", 2426195618Srpaulo meshpeer->peer_llinkid, meshpeer->peer_linkid); 2427195618Srpaulo 2428195618Srpaulo switch (ni->ni_mlstate) { 2429195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2430195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED); 2431195618Srpaulo mesh_peer_timeout_stop(ni); 2432195618Srpaulo break; 2433195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2434195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_CONFIRMRCV); 2435234876Smonthadar mesh_peer_timeout_setup(ni); 2436195618Srpaulo break; 2437195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2438195618Srpaulo args[0] = ni->ni_mlpid; 2439195618Srpaulo args[1] = meshpeer->peer_llinkid; 2440234876Smonthadar /* Standard not clear about what the reaason code should be */ 2441234876Smonthadar args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2442195618Srpaulo ieee80211_send_action(ni, 2443234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2444195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2445195618Srpaulo args); 2446195618Srpaulo break; 2447195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2448195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2449195618Srpaulo args[0] = ni->ni_mlpid; 2450195618Srpaulo args[1] = ni->ni_mllid; 2451195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2452195618Srpaulo ieee80211_send_action(ni, 2453234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2454195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2455195618Srpaulo args); 2456195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2457195618Srpaulo mesh_peer_timeout_setup(ni); 2458195618Srpaulo } 2459195618Srpaulo break; 2460195618Srpaulo default: 2461195618Srpaulo IEEE80211_DISCARD(vap, 2462195618Srpaulo IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2463195618Srpaulo wh, NULL, "received confirm in invalid state %d", 2464195618Srpaulo ni->ni_mlstate); 2465195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2466195618Srpaulo break; 2467195618Srpaulo } 2468195618Srpaulo return 0; 2469195618Srpaulo} 2470195618Srpaulo 2471195618Srpaulostatic int 2472195618Srpaulomesh_recv_action_meshpeering_close(struct ieee80211_node *ni, 2473195618Srpaulo const struct ieee80211_frame *wh, 2474195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2475195618Srpaulo{ 2476234876Smonthadar struct ieee80211_meshpeer_ie ie; 2477234876Smonthadar const struct ieee80211_meshpeer_ie *meshpeer; 2478195618Srpaulo uint16_t args[3]; 2479195618Srpaulo 2480234876Smonthadar /* +2 for action + code */ 2481234876Smonthadar meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2, efrm, &ie, 2482234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE); 2483234876Smonthadar if (meshpeer == NULL) { 2484234876Smonthadar return 0; 2485234876Smonthadar } 2486234876Smonthadar 2487234876Smonthadar /* 2488234876Smonthadar * XXX: check reason code, for example we could receive 2489234876Smonthadar * IEEE80211_REASON_MESH_MAX_PEERS then we should not attempt 2490234876Smonthadar * to peer again. 2491234876Smonthadar */ 2492234876Smonthadar 2493195618Srpaulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2494195618Srpaulo ni, "%s", "recv PEER CLOSE"); 2495195618Srpaulo 2496195618Srpaulo switch (ni->ni_mlstate) { 2497195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2498195618Srpaulo /* ignore */ 2499195618Srpaulo break; 2500195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2501195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2502195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2503195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2504195618Srpaulo args[0] = ni->ni_mlpid; 2505195618Srpaulo args[1] = ni->ni_mllid; 2506195618Srpaulo args[2] = IEEE80211_REASON_MESH_CLOSE_RCVD; 2507195618Srpaulo ieee80211_send_action(ni, 2508234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2509195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2510195618Srpaulo args); 2511195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2512195618Srpaulo mesh_peer_timeout_setup(ni); 2513195618Srpaulo break; 2514195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2515195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE); 2516234876Smonthadar mesh_peer_timeout_stop(ni); 2517195618Srpaulo break; 2518195618Srpaulo } 2519195618Srpaulo return 0; 2520195618Srpaulo} 2521195618Srpaulo 2522195618Srpaulo/* 2523195618Srpaulo * Link Metric handling. 2524195618Srpaulo */ 2525195618Srpaulostatic int 2526232479Sadrianmesh_recv_action_meshlmetric(struct ieee80211_node *ni, 2527195618Srpaulo const struct ieee80211_frame *wh, 2528195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2529195618Srpaulo{ 2530232479Sadrian const struct ieee80211_meshlmetric_ie *ie = 2531232479Sadrian (const struct ieee80211_meshlmetric_ie *) 2532232479Sadrian (frm+2); /* action + code */ 2533232479Sadrian struct ieee80211_meshlmetric_ie lm_rep; 2534232479Sadrian 2535232479Sadrian if (ie->lm_flags & IEEE80211_MESH_LMETRIC_FLAGS_REQ) { 2536232479Sadrian lm_rep.lm_flags = 0; 2537232479Sadrian lm_rep.lm_metric = mesh_airtime_calc(ni); 2538232479Sadrian ieee80211_send_action(ni, 2539232479Sadrian IEEE80211_ACTION_CAT_MESH, 2540232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, 2541232479Sadrian &lm_rep); 2542232479Sadrian } 2543232479Sadrian /* XXX: else do nothing for now */ 2544195618Srpaulo return 0; 2545195618Srpaulo} 2546195618Srpaulo 2547246506Smonthadar/* 2548246520Smonthadar * Parse meshgate action ie's for GANN frames. 2549246520Smonthadar * Returns -1 if parsing fails, otherwise 0. 2550246520Smonthadar */ 2551246520Smonthadarstatic int 2552246520Smonthadarmesh_parse_meshgate_action(struct ieee80211_node *ni, 2553246520Smonthadar const struct ieee80211_frame *wh, /* XXX for VERIFY_LENGTH */ 2554246520Smonthadar struct ieee80211_meshgann_ie *ie, const uint8_t *frm, const uint8_t *efrm) 2555246520Smonthadar{ 2556246520Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2557246520Smonthadar const struct ieee80211_meshgann_ie *gannie; 2558246520Smonthadar 2559246520Smonthadar while (efrm - frm > 1) { 2560246520Smonthadar IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return -1); 2561246520Smonthadar switch (*frm) { 2562246520Smonthadar case IEEE80211_ELEMID_MESHGANN: 2563246520Smonthadar gannie = (const struct ieee80211_meshgann_ie *) frm; 2564246861Sadrian memset(ie, 0, sizeof(*ie)); 2565246520Smonthadar ie->gann_ie = gannie->gann_ie; 2566246520Smonthadar ie->gann_len = gannie->gann_len; 2567246520Smonthadar ie->gann_flags = gannie->gann_flags; 2568246520Smonthadar ie->gann_hopcount = gannie->gann_hopcount; 2569246520Smonthadar ie->gann_ttl = gannie->gann_ttl; 2570246520Smonthadar IEEE80211_ADDR_COPY(ie->gann_addr, gannie->gann_addr); 2571246520Smonthadar ie->gann_seq = LE_READ_4(&gannie->gann_seq); 2572246520Smonthadar ie->gann_interval = LE_READ_2(&gannie->gann_interval); 2573246520Smonthadar break; 2574246520Smonthadar } 2575246520Smonthadar frm += frm[1] + 2; 2576246520Smonthadar } 2577246520Smonthadar 2578246520Smonthadar return 0; 2579246520Smonthadar} 2580246520Smonthadar 2581246520Smonthadar/* 2582246506Smonthadar * Mesh Gate Announcement handling. 2583246506Smonthadar */ 2584195618Srpaulostatic int 2585246506Smonthadarmesh_recv_action_meshgate(struct ieee80211_node *ni, 2586246506Smonthadar const struct ieee80211_frame *wh, 2587246506Smonthadar const uint8_t *frm, const uint8_t *efrm) 2588195618Srpaulo{ 2589246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2590246508Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 2591246508Smonthadar struct ieee80211_mesh_gate_route *gr, *next; 2592246506Smonthadar struct ieee80211_mesh_route *rt_gate; 2593246508Smonthadar struct ieee80211_meshgann_ie pgann; 2594246520Smonthadar struct ieee80211_meshgann_ie ie; 2595246508Smonthadar int found = 0; 2596246506Smonthadar 2597246520Smonthadar /* +2 for action + code */ 2598246520Smonthadar if (mesh_parse_meshgate_action(ni, wh, &ie, frm+2, efrm) != 0) { 2599246520Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 2600246520Smonthadar ni->ni_macaddr, NULL, "%s", 2601246520Smonthadar "GANN parsing failed"); 2602246520Smonthadar vap->iv_stats.is_rx_mgtdiscard++; 2603246520Smonthadar return (0); 2604246520Smonthadar } 2605246520Smonthadar 2606246520Smonthadar if (IEEE80211_ADDR_EQ(vap->iv_myaddr, ie.gann_addr)) 2607246508Smonthadar return 0; 2608246506Smonthadar 2609246508Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ni->ni_macaddr, 2610246520Smonthadar "received GANN, meshgate: %6D (seq %u)", ie.gann_addr, ":", 2611246520Smonthadar ie.gann_seq); 2612246508Smonthadar 2613246508Smonthadar if (ms == NULL) 2614246508Smonthadar return (0); 2615246508Smonthadar MESH_RT_LOCK(ms); 2616246508Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, next) { 2617246520Smonthadar if (!IEEE80211_ADDR_EQ(gr->gr_addr, ie.gann_addr)) 2618246508Smonthadar continue; 2619246520Smonthadar if (ie.gann_seq <= gr->gr_lastseq) { 2620246508Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 2621246508Smonthadar ni->ni_macaddr, NULL, 2622246508Smonthadar "GANN old seqno %u <= %u", 2623246520Smonthadar ie.gann_seq, gr->gr_lastseq); 2624246508Smonthadar MESH_RT_UNLOCK(ms); 2625246508Smonthadar return (0); 2626246508Smonthadar } 2627246508Smonthadar /* corresponding mesh gate found & GANN accepted */ 2628246508Smonthadar found = 1; 2629246508Smonthadar break; 2630246508Smonthadar 2631246508Smonthadar } 2632246508Smonthadar if (found == 0) { 2633246508Smonthadar /* this GANN is from a new mesh Gate add it to known table. */ 2634246520Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ie.gann_addr, 2635246520Smonthadar "stored new GANN information, seq %u.", ie.gann_seq); 2636246508Smonthadar gr = malloc(ALIGN(sizeof(struct ieee80211_mesh_gate_route)), 2637246508Smonthadar M_80211_MESH_GT_RT, M_NOWAIT | M_ZERO); 2638246520Smonthadar IEEE80211_ADDR_COPY(gr->gr_addr, ie.gann_addr); 2639246508Smonthadar TAILQ_INSERT_TAIL(&ms->ms_known_gates, gr, gr_next); 2640246508Smonthadar } 2641246520Smonthadar gr->gr_lastseq = ie.gann_seq; 2642246508Smonthadar 2643246508Smonthadar /* check if we have a path to this gate */ 2644246508Smonthadar rt_gate = mesh_rt_find_locked(ms, gr->gr_addr); 2645246506Smonthadar if (rt_gate != NULL && 2646246508Smonthadar rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) { 2647246508Smonthadar gr->gr_route = rt_gate; 2648246506Smonthadar rt_gate->rt_flags |= IEEE80211_MESHRT_FLAGS_GATE; 2649246508Smonthadar } 2650246506Smonthadar 2651246508Smonthadar MESH_RT_UNLOCK(ms); 2652246508Smonthadar 2653246508Smonthadar /* popagate only if decremented ttl >= 1 && forwarding is enabled */ 2654246520Smonthadar if ((ie.gann_ttl - 1) < 1 && !(ms->ms_flags & IEEE80211_MESHFLAGS_FWD)) 2655246508Smonthadar return 0; 2656322061Spfg pgann.gann_flags = ie.gann_flags; /* Reserved */ 2657246520Smonthadar pgann.gann_hopcount = ie.gann_hopcount + 1; 2658246520Smonthadar pgann.gann_ttl = ie.gann_ttl - 1; 2659246520Smonthadar IEEE80211_ADDR_COPY(pgann.gann_addr, ie.gann_addr); 2660246520Smonthadar pgann.gann_seq = ie.gann_seq; 2661246520Smonthadar pgann.gann_interval = ie.gann_interval; 2662246508Smonthadar 2663246520Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ie.gann_addr, 2664246508Smonthadar "%s", "propagate GANN"); 2665246508Smonthadar 2666246508Smonthadar ieee80211_send_action(vap->iv_bss, IEEE80211_ACTION_CAT_MESH, 2667246508Smonthadar IEEE80211_ACTION_MESH_GANN, &pgann); 2668246508Smonthadar 2669246506Smonthadar return 0; 2670246506Smonthadar} 2671246506Smonthadar 2672246506Smonthadarstatic int 2673246506Smonthadarmesh_send_action(struct ieee80211_node *ni, 2674246506Smonthadar const uint8_t sa[IEEE80211_ADDR_LEN], 2675246506Smonthadar const uint8_t da[IEEE80211_ADDR_LEN], 2676246506Smonthadar struct mbuf *m) 2677246506Smonthadar{ 2678246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2679246506Smonthadar struct ieee80211com *ic = ni->ni_ic; 2680195618Srpaulo struct ieee80211_bpf_params params; 2681246506Smonthadar struct ieee80211_frame *wh; 2682248069Sadrian int ret; 2683195618Srpaulo 2684246506Smonthadar KASSERT(ni != NULL, ("null node")); 2685246506Smonthadar 2686246506Smonthadar if (vap->iv_state == IEEE80211_S_CAC) { 2687246506Smonthadar IEEE80211_NOTE(vap, IEEE80211_MSG_OUTPUT, ni, 2688246506Smonthadar "block %s frame in CAC state", "Mesh action"); 2689246506Smonthadar vap->iv_stats.is_tx_badstate++; 2690246506Smonthadar ieee80211_free_node(ni); 2691246506Smonthadar m_freem(m); 2692246506Smonthadar return EIO; /* XXX */ 2693246506Smonthadar } 2694246506Smonthadar 2695246506Smonthadar M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2696246506Smonthadar if (m == NULL) { 2697246506Smonthadar ieee80211_free_node(ni); 2698246506Smonthadar return ENOMEM; 2699246506Smonthadar } 2700246506Smonthadar 2701248069Sadrian IEEE80211_TX_LOCK(ic); 2702246506Smonthadar wh = mtod(m, struct ieee80211_frame *); 2703246506Smonthadar ieee80211_send_setup(ni, m, 2704246506Smonthadar IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_ACTION, 2705246506Smonthadar IEEE80211_NONQOS_TID, sa, da, sa); 2706246506Smonthadar m->m_flags |= M_ENCAP; /* mark encapsulated */ 2707246506Smonthadar 2708195618Srpaulo memset(¶ms, 0, sizeof(params)); 2709195618Srpaulo params.ibp_pri = WME_AC_VO; 2710195618Srpaulo params.ibp_rate0 = ni->ni_txparms->mgmtrate; 2711246506Smonthadar if (IEEE80211_IS_MULTICAST(da)) 2712246506Smonthadar params.ibp_try0 = 1; 2713246506Smonthadar else 2714246506Smonthadar params.ibp_try0 = ni->ni_txparms->maxretry; 2715195618Srpaulo params.ibp_power = ni->ni_txpower; 2716246506Smonthadar 2717246506Smonthadar IEEE80211_NODE_STAT(ni, tx_mgmt); 2718246506Smonthadar 2719248069Sadrian ret = ieee80211_raw_output(vap, ni, m, ¶ms); 2720248069Sadrian IEEE80211_TX_UNLOCK(ic); 2721248069Sadrian return (ret); 2722195618Srpaulo} 2723195618Srpaulo 2724195618Srpaulo#define ADDSHORT(frm, v) do { \ 2725195618Srpaulo frm[0] = (v) & 0xff; \ 2726195618Srpaulo frm[1] = (v) >> 8; \ 2727195618Srpaulo frm += 2; \ 2728195618Srpaulo} while (0) 2729195618Srpaulo#define ADDWORD(frm, v) do { \ 2730195618Srpaulo frm[0] = (v) & 0xff; \ 2731195618Srpaulo frm[1] = ((v) >> 8) & 0xff; \ 2732195618Srpaulo frm[2] = ((v) >> 16) & 0xff; \ 2733195618Srpaulo frm[3] = ((v) >> 24) & 0xff; \ 2734195618Srpaulo frm += 4; \ 2735195618Srpaulo} while (0) 2736195618Srpaulo 2737195618Srpaulostatic int 2738195618Srpaulomesh_send_action_meshpeering_open(struct ieee80211_node *ni, 2739195618Srpaulo int category, int action, void *args0) 2740195618Srpaulo{ 2741195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2742195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2743195618Srpaulo uint16_t *args = args0; 2744195618Srpaulo const struct ieee80211_rateset *rs; 2745195618Srpaulo struct mbuf *m; 2746195618Srpaulo uint8_t *frm; 2747195618Srpaulo 2748195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2749195618Srpaulo "send PEER OPEN action: localid 0x%x", args[0]); 2750195618Srpaulo 2751195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2752195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2753195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2754195618Srpaulo ieee80211_ref_node(ni); 2755195618Srpaulo 2756195618Srpaulo m = ieee80211_getmgtframe(&frm, 2757195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2758195618Srpaulo sizeof(uint16_t) /* action+category */ 2759195618Srpaulo + sizeof(uint16_t) /* capabilites */ 2760230926Srpaulo + 2 + IEEE80211_RATE_SIZE 2761230926Srpaulo + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE) 2762195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2763230926Srpaulo + sizeof(struct ieee80211_meshconf_ie) 2764195618Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2765195618Srpaulo ); 2766195618Srpaulo if (m != NULL) { 2767195618Srpaulo /* 2768195618Srpaulo * mesh peer open action frame format: 2769195618Srpaulo * [1] category 2770195618Srpaulo * [1] action 2771195618Srpaulo * [2] capabilities 2772195618Srpaulo * [tlv] rates 2773195618Srpaulo * [tlv] xrates 2774195618Srpaulo * [tlv] mesh id 2775195618Srpaulo * [tlv] mesh conf 2776195618Srpaulo * [tlv] mesh peer link mgmt 2777195618Srpaulo */ 2778195618Srpaulo *frm++ = category; 2779195618Srpaulo *frm++ = action; 2780195618Srpaulo ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan)); 2781195618Srpaulo rs = ieee80211_get_suprates(ic, ic->ic_curchan); 2782195618Srpaulo frm = ieee80211_add_rates(frm, rs); 2783195618Srpaulo frm = ieee80211_add_xrates(frm, rs); 2784195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2785195618Srpaulo frm = ieee80211_add_meshconf(frm, vap); 2786234874Smonthadar frm = ieee80211_add_meshpeer(frm, IEEE80211_ACTION_MESHPEERING_OPEN, 2787195618Srpaulo args[0], 0, 0); 2788195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2789246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2790195618Srpaulo } else { 2791195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2792195618Srpaulo ieee80211_free_node(ni); 2793195618Srpaulo return ENOMEM; 2794195618Srpaulo } 2795195618Srpaulo} 2796195618Srpaulo 2797195618Srpaulostatic int 2798195618Srpaulomesh_send_action_meshpeering_confirm(struct ieee80211_node *ni, 2799195618Srpaulo int category, int action, void *args0) 2800195618Srpaulo{ 2801195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2802195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2803195618Srpaulo uint16_t *args = args0; 2804195618Srpaulo const struct ieee80211_rateset *rs; 2805195618Srpaulo struct mbuf *m; 2806195618Srpaulo uint8_t *frm; 2807195618Srpaulo 2808195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2809195618Srpaulo "send PEER CONFIRM action: localid 0x%x, peerid 0x%x", 2810195618Srpaulo args[0], args[1]); 2811195618Srpaulo 2812195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2813195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2814195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2815195618Srpaulo ieee80211_ref_node(ni); 2816195618Srpaulo 2817195618Srpaulo m = ieee80211_getmgtframe(&frm, 2818195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2819195618Srpaulo sizeof(uint16_t) /* action+category */ 2820195618Srpaulo + sizeof(uint16_t) /* capabilites */ 2821195618Srpaulo + sizeof(uint16_t) /* status code */ 2822195618Srpaulo + sizeof(uint16_t) /* AID */ 2823230926Srpaulo + 2 + IEEE80211_RATE_SIZE 2824230926Srpaulo + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE) 2825195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2826230926Srpaulo + sizeof(struct ieee80211_meshconf_ie) 2827195618Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2828195618Srpaulo ); 2829195618Srpaulo if (m != NULL) { 2830195618Srpaulo /* 2831195618Srpaulo * mesh peer confirm action frame format: 2832195618Srpaulo * [1] category 2833195618Srpaulo * [1] action 2834195618Srpaulo * [2] capabilities 2835195618Srpaulo * [2] status code 2836195618Srpaulo * [2] association id (peer ID) 2837195618Srpaulo * [tlv] rates 2838195618Srpaulo * [tlv] xrates 2839195618Srpaulo * [tlv] mesh id 2840195618Srpaulo * [tlv] mesh conf 2841195618Srpaulo * [tlv] mesh peer link mgmt 2842195618Srpaulo */ 2843195618Srpaulo *frm++ = category; 2844195618Srpaulo *frm++ = action; 2845195618Srpaulo ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan)); 2846195618Srpaulo ADDSHORT(frm, 0); /* status code */ 2847195618Srpaulo ADDSHORT(frm, args[1]); /* AID */ 2848195618Srpaulo rs = ieee80211_get_suprates(ic, ic->ic_curchan); 2849195618Srpaulo frm = ieee80211_add_rates(frm, rs); 2850195618Srpaulo frm = ieee80211_add_xrates(frm, rs); 2851195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2852195618Srpaulo frm = ieee80211_add_meshconf(frm, vap); 2853195618Srpaulo frm = ieee80211_add_meshpeer(frm, 2854234874Smonthadar IEEE80211_ACTION_MESHPEERING_CONFIRM, 2855195618Srpaulo args[0], args[1], 0); 2856195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2857246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2858195618Srpaulo } else { 2859195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2860195618Srpaulo ieee80211_free_node(ni); 2861195618Srpaulo return ENOMEM; 2862195618Srpaulo } 2863195618Srpaulo} 2864195618Srpaulo 2865195618Srpaulostatic int 2866195618Srpaulomesh_send_action_meshpeering_close(struct ieee80211_node *ni, 2867195618Srpaulo int category, int action, void *args0) 2868195618Srpaulo{ 2869195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2870195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2871195618Srpaulo uint16_t *args = args0; 2872195618Srpaulo struct mbuf *m; 2873195618Srpaulo uint8_t *frm; 2874195618Srpaulo 2875195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2876195618Srpaulo "send PEER CLOSE action: localid 0x%x, peerid 0x%x reason %d", 2877195618Srpaulo args[0], args[1], args[2]); 2878195618Srpaulo 2879195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2880195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2881195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2882195618Srpaulo ieee80211_ref_node(ni); 2883195618Srpaulo 2884195618Srpaulo m = ieee80211_getmgtframe(&frm, 2885195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2886195618Srpaulo sizeof(uint16_t) /* action+category */ 2887195618Srpaulo + sizeof(uint16_t) /* reason code */ 2888195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2889230926Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2890195618Srpaulo ); 2891195618Srpaulo if (m != NULL) { 2892195618Srpaulo /* 2893195618Srpaulo * mesh peer close action frame format: 2894195618Srpaulo * [1] category 2895195618Srpaulo * [1] action 2896195618Srpaulo * [tlv] mesh id 2897195618Srpaulo * [tlv] mesh peer link mgmt 2898195618Srpaulo */ 2899195618Srpaulo *frm++ = category; 2900195618Srpaulo *frm++ = action; 2901195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2902195618Srpaulo frm = ieee80211_add_meshpeer(frm, 2903234874Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, 2904195618Srpaulo args[0], args[1], args[2]); 2905195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2906246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2907195618Srpaulo } else { 2908195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2909195618Srpaulo ieee80211_free_node(ni); 2910195618Srpaulo return ENOMEM; 2911195618Srpaulo } 2912195618Srpaulo} 2913195618Srpaulo 2914195618Srpaulostatic int 2915232479Sadrianmesh_send_action_meshlmetric(struct ieee80211_node *ni, 2916195618Srpaulo int category, int action, void *arg0) 2917195618Srpaulo{ 2918195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2919195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2920232479Sadrian struct ieee80211_meshlmetric_ie *ie = arg0; 2921195618Srpaulo struct mbuf *m; 2922195618Srpaulo uint8_t *frm; 2923195618Srpaulo 2924232479Sadrian if (ie->lm_flags & IEEE80211_MESH_LMETRIC_FLAGS_REQ) { 2925232479Sadrian IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2926232479Sadrian ni, "%s", "send LINK METRIC REQUEST action"); 2927195618Srpaulo } else { 2928232479Sadrian IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2929232479Sadrian ni, "send LINK METRIC REPLY action: metric 0x%x", 2930232479Sadrian ie->lm_metric); 2931195618Srpaulo } 2932195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2933195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2934195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2935195618Srpaulo ieee80211_ref_node(ni); 2936195618Srpaulo 2937195618Srpaulo m = ieee80211_getmgtframe(&frm, 2938195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2939232479Sadrian sizeof(uint16_t) + /* action+category */ 2940232479Sadrian sizeof(struct ieee80211_meshlmetric_ie) 2941195618Srpaulo ); 2942195618Srpaulo if (m != NULL) { 2943195618Srpaulo /* 2944232479Sadrian * mesh link metric 2945195618Srpaulo * [1] category 2946195618Srpaulo * [1] action 2947195618Srpaulo * [tlv] mesh link metric 2948195618Srpaulo */ 2949195618Srpaulo *frm++ = category; 2950195618Srpaulo *frm++ = action; 2951232479Sadrian frm = ieee80211_add_meshlmetric(frm, 2952232479Sadrian ie->lm_flags, ie->lm_metric); 2953195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2954246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2955195618Srpaulo } else { 2956195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2957195618Srpaulo ieee80211_free_node(ni); 2958195618Srpaulo return ENOMEM; 2959195618Srpaulo } 2960195618Srpaulo} 2961195618Srpaulo 2962246506Smonthadarstatic int 2963246506Smonthadarmesh_send_action_meshgate(struct ieee80211_node *ni, 2964246506Smonthadar int category, int action, void *arg0) 2965246506Smonthadar{ 2966246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2967246506Smonthadar struct ieee80211com *ic = ni->ni_ic; 2968246506Smonthadar struct ieee80211_meshgann_ie *ie = arg0; 2969246506Smonthadar struct mbuf *m; 2970246506Smonthadar uint8_t *frm; 2971246506Smonthadar 2972246506Smonthadar IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2973246506Smonthadar "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2974246506Smonthadar ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2975246506Smonthadar ieee80211_ref_node(ni); 2976246506Smonthadar 2977246506Smonthadar m = ieee80211_getmgtframe(&frm, 2978246506Smonthadar ic->ic_headroom + sizeof(struct ieee80211_frame), 2979246506Smonthadar sizeof(uint16_t) + /* action+category */ 2980246506Smonthadar IEEE80211_MESHGANN_BASE_SZ 2981246506Smonthadar ); 2982246506Smonthadar if (m != NULL) { 2983246506Smonthadar /* 2984246506Smonthadar * mesh link metric 2985246506Smonthadar * [1] category 2986246506Smonthadar * [1] action 2987246506Smonthadar * [tlv] mesh gate annoucement 2988246506Smonthadar */ 2989246506Smonthadar *frm++ = category; 2990246506Smonthadar *frm++ = action; 2991246506Smonthadar frm = ieee80211_add_meshgate(frm, ie); 2992246506Smonthadar m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2993246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, broadcastaddr, m); 2994246506Smonthadar } else { 2995246506Smonthadar vap->iv_stats.is_tx_nobuf++; 2996246506Smonthadar ieee80211_free_node(ni); 2997246506Smonthadar return ENOMEM; 2998246506Smonthadar } 2999246506Smonthadar} 3000246506Smonthadar 3001195618Srpaulostatic void 3002195618Srpaulomesh_peer_timeout_setup(struct ieee80211_node *ni) 3003195618Srpaulo{ 3004195618Srpaulo switch (ni->ni_mlstate) { 3005195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 3006195618Srpaulo ni->ni_mltval = ieee80211_mesh_holdingtimeout; 3007195618Srpaulo break; 3008195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 3009195618Srpaulo ni->ni_mltval = ieee80211_mesh_confirmtimeout; 3010195618Srpaulo break; 3011195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 3012195618Srpaulo ni->ni_mltval = 0; 3013195618Srpaulo break; 3014195618Srpaulo default: 3015195618Srpaulo ni->ni_mltval = ieee80211_mesh_retrytimeout; 3016195618Srpaulo break; 3017195618Srpaulo } 3018195618Srpaulo if (ni->ni_mltval) 3019195618Srpaulo callout_reset(&ni->ni_mltimer, ni->ni_mltval, 3020195618Srpaulo mesh_peer_timeout_cb, ni); 3021195618Srpaulo} 3022195618Srpaulo 3023195618Srpaulo/* 3024195618Srpaulo * Same as above but backoffs timer statisically 50%. 3025195618Srpaulo */ 3026195618Srpaulostatic void 3027195618Srpaulomesh_peer_timeout_backoff(struct ieee80211_node *ni) 3028195618Srpaulo{ 3029195618Srpaulo uint32_t r; 3030195618Srpaulo 3031195618Srpaulo r = arc4random(); 3032195618Srpaulo ni->ni_mltval += r % ni->ni_mltval; 3033195618Srpaulo callout_reset(&ni->ni_mltimer, ni->ni_mltval, mesh_peer_timeout_cb, 3034195618Srpaulo ni); 3035195618Srpaulo} 3036195618Srpaulo 3037195618Srpaulostatic __inline void 3038195618Srpaulomesh_peer_timeout_stop(struct ieee80211_node *ni) 3039195618Srpaulo{ 3040195784Srpaulo callout_drain(&ni->ni_mltimer); 3041195618Srpaulo} 3042195618Srpaulo 3043246497Smonthadarstatic void 3044246497Smonthadarmesh_peer_backoff_cb(void *arg) 3045246497Smonthadar{ 3046246497Smonthadar struct ieee80211_node *ni = (struct ieee80211_node *)arg; 3047246497Smonthadar 3048246497Smonthadar /* After backoff timeout, try to peer automatically again. */ 3049246497Smonthadar ni->ni_mlhcnt = 0; 3050246497Smonthadar} 3051246497Smonthadar 3052195618Srpaulo/* 3053195618Srpaulo * Mesh Peer Link Management FSM timeout handling. 3054195618Srpaulo */ 3055195618Srpaulostatic void 3056195618Srpaulomesh_peer_timeout_cb(void *arg) 3057195618Srpaulo{ 3058195618Srpaulo struct ieee80211_node *ni = (struct ieee80211_node *)arg; 3059195618Srpaulo uint16_t args[3]; 3060195618Srpaulo 3061195618Srpaulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_MESH, 3062195618Srpaulo ni, "mesh link timeout, state %d, retry counter %d", 3063195618Srpaulo ni->ni_mlstate, ni->ni_mlrcnt); 3064195618Srpaulo 3065195618Srpaulo switch (ni->ni_mlstate) { 3066195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 3067195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 3068195618Srpaulo break; 3069195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 3070195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 3071195618Srpaulo if (ni->ni_mlrcnt == ieee80211_mesh_maxretries) { 3072195618Srpaulo args[0] = ni->ni_mlpid; 3073195618Srpaulo args[2] = IEEE80211_REASON_MESH_MAX_RETRIES; 3074195618Srpaulo ieee80211_send_action(ni, 3075234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3076195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, args); 3077195618Srpaulo ni->ni_mlrcnt = 0; 3078195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 3079195618Srpaulo mesh_peer_timeout_setup(ni); 3080195618Srpaulo } else { 3081195618Srpaulo args[0] = ni->ni_mlpid; 3082195618Srpaulo ieee80211_send_action(ni, 3083234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3084195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, args); 3085195618Srpaulo ni->ni_mlrcnt++; 3086195618Srpaulo mesh_peer_timeout_backoff(ni); 3087195618Srpaulo } 3088195618Srpaulo break; 3089195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 3090234876Smonthadar args[0] = ni->ni_mlpid; 3091234876Smonthadar args[2] = IEEE80211_REASON_MESH_CONFIRM_TIMEOUT; 3092234876Smonthadar ieee80211_send_action(ni, 3093234876Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3094234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, args); 3095234876Smonthadar mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 3096234876Smonthadar mesh_peer_timeout_setup(ni); 3097195618Srpaulo break; 3098195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 3099246497Smonthadar ni->ni_mlhcnt++; 3100246497Smonthadar if (ni->ni_mlhcnt >= ieee80211_mesh_maxholding) 3101246497Smonthadar callout_reset(&ni->ni_mlhtimer, 3102246497Smonthadar ieee80211_mesh_backofftimeout, 3103246497Smonthadar mesh_peer_backoff_cb, ni); 3104195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE); 3105195618Srpaulo break; 3106195618Srpaulo } 3107195618Srpaulo} 3108195618Srpaulo 3109195661Srpaulostatic int 3110195618Srpaulomesh_verify_meshid(struct ieee80211vap *vap, const uint8_t *ie) 3111195618Srpaulo{ 3112195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3113195618Srpaulo 3114195618Srpaulo if (ie == NULL || ie[1] != ms->ms_idlen) 3115195618Srpaulo return 1; 3116195618Srpaulo return memcmp(ms->ms_id, ie + 2, ms->ms_idlen); 3117195618Srpaulo} 3118195618Srpaulo 3119195618Srpaulo/* 3120195618Srpaulo * Check if we are using the same algorithms for this mesh. 3121195618Srpaulo */ 3122195618Srpaulostatic int 3123195618Srpaulomesh_verify_meshconf(struct ieee80211vap *vap, const uint8_t *ie) 3124195618Srpaulo{ 3125195618Srpaulo const struct ieee80211_meshconf_ie *meshconf = 3126195618Srpaulo (const struct ieee80211_meshconf_ie *) ie; 3127195618Srpaulo const struct ieee80211_mesh_state *ms = vap->iv_mesh; 3128195618Srpaulo 3129195618Srpaulo if (meshconf == NULL) 3130195618Srpaulo return 1; 3131197975Srpaulo if (meshconf->conf_pselid != ms->ms_ppath->mpp_ie) { 3132195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3133197975Srpaulo "unknown path selection algorithm: 0x%x\n", 3134197975Srpaulo meshconf->conf_pselid); 3135195618Srpaulo return 1; 3136195618Srpaulo } 3137197975Srpaulo if (meshconf->conf_pmetid != ms->ms_pmetric->mpm_ie) { 3138195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3139197975Srpaulo "unknown path metric algorithm: 0x%x\n", 3140197975Srpaulo meshconf->conf_pmetid); 3141195618Srpaulo return 1; 3142195618Srpaulo } 3143197975Srpaulo if (meshconf->conf_ccid != 0) { 3144195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3145197975Srpaulo "unknown congestion control algorithm: 0x%x\n", 3146197975Srpaulo meshconf->conf_ccid); 3147195618Srpaulo return 1; 3148195618Srpaulo } 3149197975Srpaulo if (meshconf->conf_syncid != IEEE80211_MESHCONF_SYNC_NEIGHOFF) { 3150195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3151197975Srpaulo "unknown sync algorithm: 0x%x\n", 3152197975Srpaulo meshconf->conf_syncid); 3153195618Srpaulo return 1; 3154195618Srpaulo } 3155197975Srpaulo if (meshconf->conf_authid != 0) { 3156195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3157197975Srpaulo "unknown auth auth algorithm: 0x%x\n", 3158197975Srpaulo meshconf->conf_pselid); 3159195618Srpaulo return 1; 3160195618Srpaulo } 3161195618Srpaulo /* Not accepting peers */ 3162231576Sadrian if (!(meshconf->conf_cap & IEEE80211_MESHCONF_CAP_AP)) { 3163195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3164195618Srpaulo "not accepting peers: 0x%x\n", meshconf->conf_cap); 3165195618Srpaulo return 1; 3166195618Srpaulo } 3167195618Srpaulo return 0; 3168195618Srpaulo} 3169195618Srpaulo 3170195618Srpaulostatic int 3171197413Srpaulomesh_verify_meshpeer(struct ieee80211vap *vap, uint8_t subtype, 3172197413Srpaulo const uint8_t *ie) 3173195618Srpaulo{ 3174195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer = 3175195618Srpaulo (const struct ieee80211_meshpeer_ie *) ie; 3176195618Srpaulo 3177234875Smonthadar if (meshpeer == NULL || 3178234875Smonthadar meshpeer->peer_len < IEEE80211_MPM_BASE_SZ || 3179234875Smonthadar meshpeer->peer_len > IEEE80211_MPM_MAX_SZ) 3180195618Srpaulo return 1; 3181234875Smonthadar if (meshpeer->peer_proto != IEEE80211_MPPID_MPM) { 3182234875Smonthadar IEEE80211_DPRINTF(vap, 3183234875Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 3184234875Smonthadar "Only MPM protocol is supported (proto: 0x%02X)", 3185234875Smonthadar meshpeer->peer_proto); 3186234875Smonthadar return 1; 3187234875Smonthadar } 3188197413Srpaulo switch (subtype) { 3189234874Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 3190234875Smonthadar if (meshpeer->peer_len != IEEE80211_MPM_BASE_SZ) 3191195618Srpaulo return 1; 3192195618Srpaulo break; 3193234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 3194234875Smonthadar if (meshpeer->peer_len != IEEE80211_MPM_BASE_SZ + 2) 3195195618Srpaulo return 1; 3196195618Srpaulo break; 3197234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 3198234875Smonthadar if (meshpeer->peer_len < IEEE80211_MPM_BASE_SZ + 2) 3199195618Srpaulo return 1; 3200234875Smonthadar if (meshpeer->peer_len == (IEEE80211_MPM_BASE_SZ + 2) && 3201234875Smonthadar meshpeer->peer_linkid != 0) 3202195618Srpaulo return 1; 3203195618Srpaulo if (meshpeer->peer_rcode == 0) 3204195618Srpaulo return 1; 3205195618Srpaulo break; 3206195618Srpaulo } 3207195618Srpaulo return 0; 3208195618Srpaulo} 3209195618Srpaulo 3210195618Srpaulo/* 3211195618Srpaulo * Add a Mesh ID IE to a frame. 3212195618Srpaulo */ 3213195618Srpaulouint8_t * 3214195618Srpauloieee80211_add_meshid(uint8_t *frm, struct ieee80211vap *vap) 3215195618Srpaulo{ 3216195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3217195618Srpaulo 3218195618Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a mbss vap")); 3219195618Srpaulo 3220195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHID; 3221195618Srpaulo *frm++ = ms->ms_idlen; 3222195618Srpaulo memcpy(frm, ms->ms_id, ms->ms_idlen); 3223195618Srpaulo return frm + ms->ms_idlen; 3224195618Srpaulo} 3225195618Srpaulo 3226195618Srpaulo/* 3227195618Srpaulo * Add a Mesh Configuration IE to a frame. 3228195618Srpaulo * For now just use HWMP routing, Airtime link metric, Null Congestion 3229195618Srpaulo * Signaling, Null Sync Protocol and Null Authentication. 3230195618Srpaulo */ 3231195618Srpaulouint8_t * 3232195618Srpauloieee80211_add_meshconf(uint8_t *frm, struct ieee80211vap *vap) 3233195618Srpaulo{ 3234195618Srpaulo const struct ieee80211_mesh_state *ms = vap->iv_mesh; 3235202178Srpaulo uint16_t caps; 3236195618Srpaulo 3237195618Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap")); 3238195618Srpaulo 3239195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHCONF; 3240231576Sadrian *frm++ = IEEE80211_MESH_CONF_SZ; 3241197975Srpaulo *frm++ = ms->ms_ppath->mpp_ie; /* path selection */ 3242197975Srpaulo *frm++ = ms->ms_pmetric->mpm_ie; /* link metric */ 3243197975Srpaulo *frm++ = IEEE80211_MESHCONF_CC_DISABLED; 3244197975Srpaulo *frm++ = IEEE80211_MESHCONF_SYNC_NEIGHOFF; 3245197975Srpaulo *frm++ = IEEE80211_MESHCONF_AUTH_DISABLED; 3246195618Srpaulo /* NB: set the number of neighbors before the rest */ 3247234876Smonthadar *frm = (ms->ms_neighbors > IEEE80211_MESH_MAX_NEIGHBORS ? 3248234876Smonthadar IEEE80211_MESH_MAX_NEIGHBORS : ms->ms_neighbors) << 1; 3249234892Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) 3250234892Smonthadar *frm |= IEEE80211_MESHCONF_FORM_GATE; 3251195618Srpaulo frm += 1; 3252202178Srpaulo caps = 0; 3253195618Srpaulo if (ms->ms_flags & IEEE80211_MESHFLAGS_AP) 3254202178Srpaulo caps |= IEEE80211_MESHCONF_CAP_AP; 3255195618Srpaulo if (ms->ms_flags & IEEE80211_MESHFLAGS_FWD) 3256202178Srpaulo caps |= IEEE80211_MESHCONF_CAP_FWRD; 3257231576Sadrian *frm++ = caps; 3258195618Srpaulo return frm; 3259195618Srpaulo} 3260195618Srpaulo 3261195618Srpaulo/* 3262195618Srpaulo * Add a Mesh Peer Management IE to a frame. 3263195618Srpaulo */ 3264195618Srpaulouint8_t * 3265195618Srpauloieee80211_add_meshpeer(uint8_t *frm, uint8_t subtype, uint16_t localid, 3266195618Srpaulo uint16_t peerid, uint16_t reason) 3267195618Srpaulo{ 3268197413Srpaulo 3269195618Srpaulo KASSERT(localid != 0, ("localid == 0")); 3270195618Srpaulo 3271195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHPEER; 3272195618Srpaulo switch (subtype) { 3273234874Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 3274234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ; /* length */ 3275234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3276234875Smonthadar ADDSHORT(frm, localid); /* local ID */ 3277195618Srpaulo break; 3278234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 3279195618Srpaulo KASSERT(peerid != 0, ("sending peer confirm without peer id")); 3280234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ + 2; /* length */ 3281234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3282234875Smonthadar ADDSHORT(frm, localid); /* local ID */ 3283234875Smonthadar ADDSHORT(frm, peerid); /* peer ID */ 3284195618Srpaulo break; 3285234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 3286195618Srpaulo if (peerid) 3287234875Smonthadar *frm++ = IEEE80211_MPM_MAX_SZ; /* length */ 3288195618Srpaulo else 3289234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ + 2; /* length */ 3290234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3291195618Srpaulo ADDSHORT(frm, localid); /* local ID */ 3292195618Srpaulo if (peerid) 3293195618Srpaulo ADDSHORT(frm, peerid); /* peer ID */ 3294195618Srpaulo ADDSHORT(frm, reason); 3295195618Srpaulo break; 3296195618Srpaulo } 3297195618Srpaulo return frm; 3298195618Srpaulo} 3299195618Srpaulo 3300195618Srpaulo/* 3301195618Srpaulo * Compute an Airtime Link Metric for the link with this node. 3302195618Srpaulo * 3303195618Srpaulo * Based on Draft 3.0 spec (11B.10, p.149). 3304195618Srpaulo */ 3305195618Srpaulo/* 3306195618Srpaulo * Max 802.11s overhead. 3307195618Srpaulo */ 3308195618Srpaulo#define IEEE80211_MESH_MAXOVERHEAD \ 3309195618Srpaulo (sizeof(struct ieee80211_qosframe_addr4) \ 3310234878Smonthadar + sizeof(struct ieee80211_meshcntl_ae10) \ 3311195618Srpaulo + sizeof(struct llc) \ 3312195618Srpaulo + IEEE80211_ADDR_LEN \ 3313195618Srpaulo + IEEE80211_WEP_IVLEN \ 3314195618Srpaulo + IEEE80211_WEP_KIDLEN \ 3315195618Srpaulo + IEEE80211_WEP_CRCLEN \ 3316195618Srpaulo + IEEE80211_WEP_MICLEN \ 3317195618Srpaulo + IEEE80211_CRC_LEN) 3318195618Srpaulouint32_t 3319195618Srpaulomesh_airtime_calc(struct ieee80211_node *ni) 3320195618Srpaulo{ 3321195618Srpaulo#define M_BITS 8 3322195618Srpaulo#define S_FACTOR (2 * M_BITS) 3323195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 3324195618Srpaulo struct ifnet *ifp = ni->ni_vap->iv_ifp; 3325195618Srpaulo const static int nbits = 8192 << M_BITS; 3326195618Srpaulo uint32_t overhead, rate, errrate; 3327195618Srpaulo uint64_t res; 3328195618Srpaulo 3329195618Srpaulo /* Time to transmit a frame */ 3330195618Srpaulo rate = ni->ni_txrate; 3331195618Srpaulo overhead = ieee80211_compute_duration(ic->ic_rt, 3332195618Srpaulo ifp->if_mtu + IEEE80211_MESH_MAXOVERHEAD, rate, 0) << M_BITS; 3333195618Srpaulo /* Error rate in percentage */ 3334195618Srpaulo /* XXX assuming small failures are ok */ 3335195618Srpaulo errrate = (((ifp->if_oerrors + 3336195618Srpaulo ifp->if_ierrors) / 100) << M_BITS) / 100; 3337195618Srpaulo res = (overhead + (nbits / rate)) * 3338195618Srpaulo ((1 << S_FACTOR) / ((1 << M_BITS) - errrate)); 3339195618Srpaulo 3340195618Srpaulo return (uint32_t)(res >> S_FACTOR); 3341195618Srpaulo#undef M_BITS 3342195618Srpaulo#undef S_FACTOR 3343195618Srpaulo} 3344195618Srpaulo 3345195618Srpaulo/* 3346195618Srpaulo * Add a Mesh Link Metric report IE to a frame. 3347195618Srpaulo */ 3348195618Srpaulouint8_t * 3349232479Sadrianieee80211_add_meshlmetric(uint8_t *frm, uint8_t flags, uint32_t metric) 3350195618Srpaulo{ 3351195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHLINK; 3352232479Sadrian *frm++ = 5; 3353232479Sadrian *frm++ = flags; 3354195618Srpaulo ADDWORD(frm, metric); 3355195618Srpaulo return frm; 3356195618Srpaulo} 3357246506Smonthadar 3358246506Smonthadar/* 3359246506Smonthadar * Add a Mesh Gate Announcement IE to a frame. 3360246506Smonthadar */ 3361246506Smonthadaruint8_t * 3362246506Smonthadarieee80211_add_meshgate(uint8_t *frm, struct ieee80211_meshgann_ie *ie) 3363246506Smonthadar{ 3364246506Smonthadar *frm++ = IEEE80211_ELEMID_MESHGANN; /* ie */ 3365246506Smonthadar *frm++ = IEEE80211_MESHGANN_BASE_SZ; /* len */ 3366246506Smonthadar *frm++ = ie->gann_flags; 3367246506Smonthadar *frm++ = ie->gann_hopcount; 3368246506Smonthadar *frm++ = ie->gann_ttl; 3369246506Smonthadar IEEE80211_ADDR_COPY(frm, ie->gann_addr); 3370246506Smonthadar frm += 6; 3371246506Smonthadar ADDWORD(frm, ie->gann_seq); 3372246506Smonthadar ADDSHORT(frm, ie->gann_interval); 3373246506Smonthadar return frm; 3374246506Smonthadar} 3375195618Srpaulo#undef ADDSHORT 3376195618Srpaulo#undef ADDWORD 3377195618Srpaulo 3378195618Srpaulo/* 3379195618Srpaulo * Initialize any mesh-specific node state. 3380195618Srpaulo */ 3381195618Srpaulovoid 3382195618Srpauloieee80211_mesh_node_init(struct ieee80211vap *vap, struct ieee80211_node *ni) 3383195618Srpaulo{ 3384195618Srpaulo ni->ni_flags |= IEEE80211_NODE_QOS; 3385314667Savg callout_init(&ni->ni_mltimer, 1); 3386314667Savg callout_init(&ni->ni_mlhtimer, 1); 3387195618Srpaulo} 3388195618Srpaulo 3389195618Srpaulo/* 3390195618Srpaulo * Cleanup any mesh-specific node state. 3391195618Srpaulo */ 3392195618Srpaulovoid 3393195618Srpauloieee80211_mesh_node_cleanup(struct ieee80211_node *ni) 3394195618Srpaulo{ 3395195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 3396195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3397195618Srpaulo 3398195618Srpaulo callout_drain(&ni->ni_mltimer); 3399246497Smonthadar callout_drain(&ni->ni_mlhtimer); 3400195618Srpaulo /* NB: short-circuit callbacks after mesh_vdetach */ 3401195618Srpaulo if (vap->iv_mesh != NULL) 3402195618Srpaulo ms->ms_ppath->mpp_peerdown(ni); 3403195618Srpaulo} 3404195618Srpaulo 3405195618Srpaulovoid 3406195618Srpauloieee80211_parse_meshid(struct ieee80211_node *ni, const uint8_t *ie) 3407195618Srpaulo{ 3408195618Srpaulo ni->ni_meshidlen = ie[1]; 3409195618Srpaulo memcpy(ni->ni_meshid, ie + 2, ie[1]); 3410195618Srpaulo} 3411195618Srpaulo 3412195618Srpaulo/* 3413195618Srpaulo * Setup mesh-specific node state on neighbor discovery. 3414195618Srpaulo */ 3415195618Srpaulovoid 3416195618Srpauloieee80211_mesh_init_neighbor(struct ieee80211_node *ni, 3417195618Srpaulo const struct ieee80211_frame *wh, 3418195618Srpaulo const struct ieee80211_scanparams *sp) 3419195618Srpaulo{ 3420195618Srpaulo ieee80211_parse_meshid(ni, sp->meshid); 3421195618Srpaulo} 3422195618Srpaulo 3423198242Srpaulovoid 3424198242Srpauloieee80211_mesh_update_beacon(struct ieee80211vap *vap, 3425198242Srpaulo struct ieee80211_beacon_offsets *bo) 3426198242Srpaulo{ 3427198242Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap")); 3428198242Srpaulo 3429198242Srpaulo if (isset(bo->bo_flags, IEEE80211_BEACON_MESHCONF)) { 3430198242Srpaulo (void)ieee80211_add_meshconf(bo->bo_meshconf, vap); 3431198242Srpaulo clrbit(bo->bo_flags, IEEE80211_BEACON_MESHCONF); 3432198242Srpaulo } 3433198242Srpaulo} 3434198242Srpaulo 3435195618Srpaulostatic int 3436195618Srpaulomesh_ioctl_get80211(struct ieee80211vap *vap, struct ieee80211req *ireq) 3437195618Srpaulo{ 3438195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3439195618Srpaulo uint8_t tmpmeshid[IEEE80211_NWID_LEN]; 3440195618Srpaulo struct ieee80211_mesh_route *rt; 3441195618Srpaulo struct ieee80211req_mesh_route *imr; 3442195618Srpaulo size_t len, off; 3443195618Srpaulo uint8_t *p; 3444195618Srpaulo int error; 3445195618Srpaulo 3446195618Srpaulo if (vap->iv_opmode != IEEE80211_M_MBSS) 3447195618Srpaulo return ENOSYS; 3448195618Srpaulo 3449195618Srpaulo error = 0; 3450195618Srpaulo switch (ireq->i_type) { 3451195618Srpaulo case IEEE80211_IOC_MESH_ID: 3452195618Srpaulo ireq->i_len = ms->ms_idlen; 3453195618Srpaulo memcpy(tmpmeshid, ms->ms_id, ireq->i_len); 3454195618Srpaulo error = copyout(tmpmeshid, ireq->i_data, ireq->i_len); 3455195618Srpaulo break; 3456195618Srpaulo case IEEE80211_IOC_MESH_AP: 3457195618Srpaulo ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_AP) != 0; 3458195618Srpaulo break; 3459195618Srpaulo case IEEE80211_IOC_MESH_FWRD: 3460195618Srpaulo ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_FWD) != 0; 3461195618Srpaulo break; 3462234892Smonthadar case IEEE80211_IOC_MESH_GATE: 3463234892Smonthadar ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) != 0; 3464234892Smonthadar break; 3465195618Srpaulo case IEEE80211_IOC_MESH_TTL: 3466195618Srpaulo ireq->i_val = ms->ms_ttl; 3467195618Srpaulo break; 3468195618Srpaulo case IEEE80211_IOC_MESH_RTCMD: 3469195618Srpaulo switch (ireq->i_val) { 3470195618Srpaulo case IEEE80211_MESH_RTCMD_LIST: 3471195618Srpaulo len = 0; 3472195618Srpaulo MESH_RT_LOCK(ms); 3473195618Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 3474195618Srpaulo len += sizeof(*imr); 3475195618Srpaulo } 3476195618Srpaulo MESH_RT_UNLOCK(ms); 3477195618Srpaulo if (len > ireq->i_len || ireq->i_len < sizeof(*imr)) { 3478195618Srpaulo ireq->i_len = len; 3479195618Srpaulo return ENOMEM; 3480195618Srpaulo } 3481195618Srpaulo ireq->i_len = len; 3482195784Srpaulo /* XXX M_WAIT? */ 3483195618Srpaulo p = malloc(len, M_TEMP, M_NOWAIT | M_ZERO); 3484195618Srpaulo if (p == NULL) 3485195618Srpaulo return ENOMEM; 3486195618Srpaulo off = 0; 3487195618Srpaulo MESH_RT_LOCK(ms); 3488195618Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 3489195618Srpaulo if (off >= len) 3490195618Srpaulo break; 3491195618Srpaulo imr = (struct ieee80211req_mesh_route *) 3492195618Srpaulo (p + off); 3493195618Srpaulo IEEE80211_ADDR_COPY(imr->imr_dest, 3494195618Srpaulo rt->rt_dest); 3495195618Srpaulo IEEE80211_ADDR_COPY(imr->imr_nexthop, 3496195618Srpaulo rt->rt_nexthop); 3497195618Srpaulo imr->imr_metric = rt->rt_metric; 3498195618Srpaulo imr->imr_nhops = rt->rt_nhops; 3499234877Smonthadar imr->imr_lifetime = 3500234877Smonthadar ieee80211_mesh_rt_update(rt, 0); 3501195784Srpaulo imr->imr_lastmseq = rt->rt_lastmseq; 3502234877Smonthadar imr->imr_flags = rt->rt_flags; /* last */ 3503195618Srpaulo off += sizeof(*imr); 3504195618Srpaulo } 3505195618Srpaulo MESH_RT_UNLOCK(ms); 3506195618Srpaulo error = copyout(p, (uint8_t *)ireq->i_data, 3507195618Srpaulo ireq->i_len); 3508195618Srpaulo free(p, M_TEMP); 3509195618Srpaulo break; 3510195618Srpaulo case IEEE80211_MESH_RTCMD_FLUSH: 3511195618Srpaulo case IEEE80211_MESH_RTCMD_ADD: 3512195618Srpaulo case IEEE80211_MESH_RTCMD_DELETE: 3513195618Srpaulo return EINVAL; 3514195618Srpaulo default: 3515195618Srpaulo return ENOSYS; 3516195618Srpaulo } 3517195618Srpaulo break; 3518195618Srpaulo case IEEE80211_IOC_MESH_PR_METRIC: 3519195618Srpaulo len = strlen(ms->ms_pmetric->mpm_descr); 3520195618Srpaulo if (ireq->i_len < len) 3521195618Srpaulo return EINVAL; 3522195618Srpaulo ireq->i_len = len; 3523195618Srpaulo error = copyout(ms->ms_pmetric->mpm_descr, 3524195618Srpaulo (uint8_t *)ireq->i_data, len); 3525195618Srpaulo break; 3526195618Srpaulo case IEEE80211_IOC_MESH_PR_PATH: 3527195618Srpaulo len = strlen(ms->ms_ppath->mpp_descr); 3528195618Srpaulo if (ireq->i_len < len) 3529195618Srpaulo return EINVAL; 3530195618Srpaulo ireq->i_len = len; 3531195618Srpaulo error = copyout(ms->ms_ppath->mpp_descr, 3532195618Srpaulo (uint8_t *)ireq->i_data, len); 3533195618Srpaulo break; 3534195618Srpaulo default: 3535195618Srpaulo return ENOSYS; 3536195618Srpaulo } 3537195618Srpaulo 3538195618Srpaulo return error; 3539195618Srpaulo} 3540195618SrpauloIEEE80211_IOCTL_GET(mesh, mesh_ioctl_get80211); 3541195618Srpaulo 3542195618Srpaulostatic int 3543195618Srpaulomesh_ioctl_set80211(struct ieee80211vap *vap, struct ieee80211req *ireq) 3544195618Srpaulo{ 3545195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3546195618Srpaulo uint8_t tmpmeshid[IEEE80211_NWID_LEN]; 3547195618Srpaulo uint8_t tmpaddr[IEEE80211_ADDR_LEN]; 3548195618Srpaulo char tmpproto[IEEE80211_MESH_PROTO_DSZ]; 3549195618Srpaulo int error; 3550195618Srpaulo 3551195618Srpaulo if (vap->iv_opmode != IEEE80211_M_MBSS) 3552195618Srpaulo return ENOSYS; 3553195618Srpaulo 3554195618Srpaulo error = 0; 3555195618Srpaulo switch (ireq->i_type) { 3556195618Srpaulo case IEEE80211_IOC_MESH_ID: 3557195618Srpaulo if (ireq->i_val != 0 || ireq->i_len > IEEE80211_MESHID_LEN) 3558195618Srpaulo return EINVAL; 3559195618Srpaulo error = copyin(ireq->i_data, tmpmeshid, ireq->i_len); 3560195784Srpaulo if (error != 0) 3561195618Srpaulo break; 3562195618Srpaulo memset(ms->ms_id, 0, IEEE80211_NWID_LEN); 3563195618Srpaulo ms->ms_idlen = ireq->i_len; 3564195618Srpaulo memcpy(ms->ms_id, tmpmeshid, ireq->i_len); 3565195784Srpaulo error = ENETRESET; 3566195618Srpaulo break; 3567195618Srpaulo case IEEE80211_IOC_MESH_AP: 3568195618Srpaulo if (ireq->i_val) 3569195618Srpaulo ms->ms_flags |= IEEE80211_MESHFLAGS_AP; 3570195618Srpaulo else 3571195618Srpaulo ms->ms_flags &= ~IEEE80211_MESHFLAGS_AP; 3572195784Srpaulo error = ENETRESET; 3573195618Srpaulo break; 3574195618Srpaulo case IEEE80211_IOC_MESH_FWRD: 3575195618Srpaulo if (ireq->i_val) 3576195618Srpaulo ms->ms_flags |= IEEE80211_MESHFLAGS_FWD; 3577195618Srpaulo else 3578195618Srpaulo ms->ms_flags &= ~IEEE80211_MESHFLAGS_FWD; 3579246506Smonthadar mesh_gatemode_setup(vap); 3580195618Srpaulo break; 3581234892Smonthadar case IEEE80211_IOC_MESH_GATE: 3582234892Smonthadar if (ireq->i_val) 3583234892Smonthadar ms->ms_flags |= IEEE80211_MESHFLAGS_GATE; 3584234892Smonthadar else 3585234892Smonthadar ms->ms_flags &= ~IEEE80211_MESHFLAGS_GATE; 3586234892Smonthadar break; 3587195618Srpaulo case IEEE80211_IOC_MESH_TTL: 3588195618Srpaulo ms->ms_ttl = (uint8_t) ireq->i_val; 3589195618Srpaulo break; 3590195618Srpaulo case IEEE80211_IOC_MESH_RTCMD: 3591195618Srpaulo switch (ireq->i_val) { 3592195618Srpaulo case IEEE80211_MESH_RTCMD_LIST: 3593195618Srpaulo return EINVAL; 3594195618Srpaulo case IEEE80211_MESH_RTCMD_FLUSH: 3595195618Srpaulo ieee80211_mesh_rt_flush(vap); 3596195618Srpaulo break; 3597195618Srpaulo case IEEE80211_MESH_RTCMD_ADD: 3598195618Srpaulo if (IEEE80211_ADDR_EQ(vap->iv_myaddr, ireq->i_data) || 3599195618Srpaulo IEEE80211_ADDR_EQ(broadcastaddr, ireq->i_data)) 3600195618Srpaulo return EINVAL; 3601195618Srpaulo error = copyin(ireq->i_data, &tmpaddr, 3602195618Srpaulo IEEE80211_ADDR_LEN); 3603195784Srpaulo if (error == 0) 3604195618Srpaulo ieee80211_mesh_discover(vap, tmpaddr, NULL); 3605195618Srpaulo break; 3606195618Srpaulo case IEEE80211_MESH_RTCMD_DELETE: 3607195618Srpaulo ieee80211_mesh_rt_del(vap, ireq->i_data); 3608195618Srpaulo break; 3609195618Srpaulo default: 3610195618Srpaulo return ENOSYS; 3611195618Srpaulo } 3612195618Srpaulo break; 3613195618Srpaulo case IEEE80211_IOC_MESH_PR_METRIC: 3614195618Srpaulo error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto)); 3615195784Srpaulo if (error == 0) { 3616195784Srpaulo error = mesh_select_proto_metric(vap, tmpproto); 3617195784Srpaulo if (error == 0) 3618195784Srpaulo error = ENETRESET; 3619195784Srpaulo } 3620195618Srpaulo break; 3621195618Srpaulo case IEEE80211_IOC_MESH_PR_PATH: 3622195618Srpaulo error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto)); 3623195784Srpaulo if (error == 0) { 3624195784Srpaulo error = mesh_select_proto_path(vap, tmpproto); 3625195784Srpaulo if (error == 0) 3626195784Srpaulo error = ENETRESET; 3627195784Srpaulo } 3628195618Srpaulo break; 3629195618Srpaulo default: 3630195618Srpaulo return ENOSYS; 3631195618Srpaulo } 3632195618Srpaulo return error; 3633195618Srpaulo} 3634195618SrpauloIEEE80211_IOCTL_SET(mesh, mesh_ioctl_set80211); 3635