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/11/sys/net80211/ieee80211_mesh.c 361038 2020-05-14 17:56:43Z jhb $"); 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> 57257176Sglebius#include <net/if_var.h> 58195618Srpaulo#include <net/if_media.h> 59195618Srpaulo#include <net/if_llc.h> 60195618Srpaulo#include <net/ethernet.h> 61195618Srpaulo 62195618Srpaulo#include <net80211/ieee80211_var.h> 63195618Srpaulo#include <net80211/ieee80211_action.h> 64246537Sadrian#ifdef IEEE80211_SUPPORT_SUPERG 65246537Sadrian#include <net80211/ieee80211_superg.h> 66246537Sadrian#endif 67195618Srpaulo#include <net80211/ieee80211_input.h> 68195618Srpaulo#include <net80211/ieee80211_mesh.h> 69195618Srpaulo 70195784Srpaulostatic void mesh_rt_flush_invalid(struct ieee80211vap *); 71195618Srpaulostatic int mesh_select_proto_path(struct ieee80211vap *, const char *); 72195618Srpaulostatic int mesh_select_proto_metric(struct ieee80211vap *, const char *); 73195618Srpaulostatic void mesh_vattach(struct ieee80211vap *); 74195618Srpaulostatic int mesh_newstate(struct ieee80211vap *, enum ieee80211_state, int); 75195784Srpaulostatic void mesh_rt_cleanup_cb(void *); 76246506Smonthadarstatic void mesh_gatemode_setup(struct ieee80211vap *); 77246506Smonthadarstatic void mesh_gatemode_cb(void *); 78195661Srpaulostatic void mesh_linkchange(struct ieee80211_node *, 79195661Srpaulo enum ieee80211_mesh_mlstate); 80195618Srpaulostatic void mesh_checkid(void *, struct ieee80211_node *); 81195618Srpaulostatic uint32_t mesh_generateid(struct ieee80211vap *); 82195618Srpaulostatic int mesh_checkpseq(struct ieee80211vap *, 83195618Srpaulo const uint8_t [IEEE80211_ADDR_LEN], uint32_t); 84246511Smonthadarstatic void mesh_transmit_to_gate(struct ieee80211vap *, struct mbuf *, 85246511Smonthadar struct ieee80211_mesh_route *); 86195618Srpaulostatic void mesh_forward(struct ieee80211vap *, struct mbuf *, 87195618Srpaulo const struct ieee80211_meshcntl *); 88283535Sadrianstatic int mesh_input(struct ieee80211_node *, struct mbuf *, 89283535Sadrian const struct ieee80211_rx_stats *rxs, int, int); 90195618Srpaulostatic void mesh_recv_mgmt(struct ieee80211_node *, struct mbuf *, int, 91283535Sadrian const struct ieee80211_rx_stats *rxs, int, int); 92205277Srpaulostatic void mesh_recv_ctl(struct ieee80211_node *, struct mbuf *, int); 93195618Srpaulostatic void mesh_peer_timeout_setup(struct ieee80211_node *); 94195618Srpaulostatic void mesh_peer_timeout_backoff(struct ieee80211_node *); 95195618Srpaulostatic void mesh_peer_timeout_cb(void *); 96195618Srpaulostatic __inline void 97195618Srpaulo mesh_peer_timeout_stop(struct ieee80211_node *); 98195618Srpaulostatic int mesh_verify_meshid(struct ieee80211vap *, const uint8_t *); 99195618Srpaulostatic int mesh_verify_meshconf(struct ieee80211vap *, const uint8_t *); 100197413Srpaulostatic int mesh_verify_meshpeer(struct ieee80211vap *, uint8_t, 101197413Srpaulo const uint8_t *); 102195618Srpaulouint32_t mesh_airtime_calc(struct ieee80211_node *); 103195618Srpaulo 104195618Srpaulo/* 105195618Srpaulo * Timeout values come from the specification and are in milliseconds. 106195618Srpaulo */ 107227309Sedstatic SYSCTL_NODE(_net_wlan, OID_AUTO, mesh, CTLFLAG_RD, 0, 108195618Srpaulo "IEEE 802.11s parameters"); 109246506Smonthadarstatic int ieee80211_mesh_gateint = -1; 110246506SmonthadarSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, gateint, CTLTYPE_INT | CTLFLAG_RW, 111246506Smonthadar &ieee80211_mesh_gateint, 0, ieee80211_sysctl_msecs_ticks, "I", 112246506Smonthadar "mesh gate interval (ms)"); 113195618Srpaulostatic int ieee80211_mesh_retrytimeout = -1; 114195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, retrytimeout, CTLTYPE_INT | CTLFLAG_RW, 115195618Srpaulo &ieee80211_mesh_retrytimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 116195618Srpaulo "Retry timeout (msec)"); 117195618Srpaulostatic int ieee80211_mesh_holdingtimeout = -1; 118246537Sadrian 119195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, holdingtimeout, CTLTYPE_INT | CTLFLAG_RW, 120195618Srpaulo &ieee80211_mesh_holdingtimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 121195618Srpaulo "Holding state timeout (msec)"); 122195618Srpaulostatic int ieee80211_mesh_confirmtimeout = -1; 123195618SrpauloSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, confirmtimeout, CTLTYPE_INT | CTLFLAG_RW, 124195618Srpaulo &ieee80211_mesh_confirmtimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 125195618Srpaulo "Confirm state timeout (msec)"); 126246497Smonthadarstatic int ieee80211_mesh_backofftimeout = -1; 127246497SmonthadarSYSCTL_PROC(_net_wlan_mesh, OID_AUTO, backofftimeout, CTLTYPE_INT | CTLFLAG_RW, 128246497Smonthadar &ieee80211_mesh_backofftimeout, 0, ieee80211_sysctl_msecs_ticks, "I", 129246497Smonthadar "Backoff timeout (msec). This is to throutles peering forever when " 130281383Seadler "not receiving answer or is rejected by a neighbor"); 131195618Srpaulostatic int ieee80211_mesh_maxretries = 2; 132273377ShselaskySYSCTL_INT(_net_wlan_mesh, OID_AUTO, maxretries, CTLFLAG_RW, 133195618Srpaulo &ieee80211_mesh_maxretries, 0, 134195618Srpaulo "Maximum retries during peer link establishment"); 135246497Smonthadarstatic int ieee80211_mesh_maxholding = 2; 136273377ShselaskySYSCTL_INT(_net_wlan_mesh, OID_AUTO, maxholding, CTLFLAG_RW, 137246497Smonthadar &ieee80211_mesh_maxholding, 0, 138246497Smonthadar "Maximum times we are allowed to transition to HOLDING state before " 139246497Smonthadar "backinoff during peer link establishment"); 140195618Srpaulo 141195618Srpaulostatic const uint8_t broadcastaddr[IEEE80211_ADDR_LEN] = 142195618Srpaulo { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 143195618Srpaulo 144195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_open; 145195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_confirm; 146195618Srpaulostatic ieee80211_recv_action_func mesh_recv_action_meshpeering_close; 147232479Sadrianstatic ieee80211_recv_action_func mesh_recv_action_meshlmetric; 148246506Smonthadarstatic ieee80211_recv_action_func mesh_recv_action_meshgate; 149195618Srpaulo 150195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_open; 151195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_confirm; 152195618Srpaulostatic ieee80211_send_action_func mesh_send_action_meshpeering_close; 153232479Sadrianstatic ieee80211_send_action_func mesh_send_action_meshlmetric; 154246506Smonthadarstatic ieee80211_send_action_func mesh_send_action_meshgate; 155195618Srpaulo 156195618Srpaulostatic const struct ieee80211_mesh_proto_metric mesh_metric_airtime = { 157195618Srpaulo .mpm_descr = "AIRTIME", 158197975Srpaulo .mpm_ie = IEEE80211_MESHCONF_METRIC_AIRTIME, 159195618Srpaulo .mpm_metric = mesh_airtime_calc, 160195618Srpaulo}; 161195618Srpaulo 162195618Srpaulostatic struct ieee80211_mesh_proto_path mesh_proto_paths[4]; 163195618Srpaulostatic struct ieee80211_mesh_proto_metric mesh_proto_metrics[4]; 164195618Srpaulo 165232625SadrianMALLOC_DEFINE(M_80211_MESH_PREQ, "80211preq", "802.11 MESH Path Request frame"); 166232625SadrianMALLOC_DEFINE(M_80211_MESH_PREP, "80211prep", "802.11 MESH Path Reply frame"); 167232625SadrianMALLOC_DEFINE(M_80211_MESH_PERR, "80211perr", "802.11 MESH Path Error frame"); 168232625Sadrian 169234877Smonthadar/* The longer one of the lifetime should be stored as new lifetime */ 170234877Smonthadar#define MESH_ROUTE_LIFETIME_MAX(a, b) (a > b ? a : b) 171234877Smonthadar 172246508SmonthadarMALLOC_DEFINE(M_80211_MESH_RT, "80211mesh_rt", "802.11s routing table"); 173246508SmonthadarMALLOC_DEFINE(M_80211_MESH_GT_RT, "80211mesh_gt", "802.11s known gates table"); 174195618Srpaulo 175195618Srpaulo/* 176195618Srpaulo * Helper functions to manipulate the Mesh routing table. 177195618Srpaulo */ 178195784Srpaulo 179195784Srpaulostatic struct ieee80211_mesh_route * 180195784Srpaulomesh_rt_find_locked(struct ieee80211_mesh_state *ms, 181195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 182195784Srpaulo{ 183195784Srpaulo struct ieee80211_mesh_route *rt; 184195784Srpaulo 185195784Srpaulo MESH_RT_LOCK_ASSERT(ms); 186195784Srpaulo 187195784Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 188195784Srpaulo if (IEEE80211_ADDR_EQ(dest, rt->rt_dest)) 189195784Srpaulo return rt; 190195784Srpaulo } 191195784Srpaulo return NULL; 192195784Srpaulo} 193195784Srpaulo 194195784Srpaulostatic struct ieee80211_mesh_route * 195234894Smonthadarmesh_rt_add_locked(struct ieee80211vap *vap, 196195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 197195784Srpaulo{ 198234894Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 199195784Srpaulo struct ieee80211_mesh_route *rt; 200195784Srpaulo 201195784Srpaulo KASSERT(!IEEE80211_ADDR_EQ(broadcastaddr, dest), 202195784Srpaulo ("%s: adding broadcast to the routing table", __func__)); 203195784Srpaulo 204195784Srpaulo MESH_RT_LOCK_ASSERT(ms); 205195784Srpaulo 206283538Sadrian rt = IEEE80211_MALLOC(ALIGN(sizeof(struct ieee80211_mesh_route)) + 207283538Sadrian ms->ms_ppath->mpp_privlen, M_80211_MESH_RT, 208283538Sadrian IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 209195784Srpaulo if (rt != NULL) { 210234894Smonthadar rt->rt_vap = vap; 211195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_dest, dest); 212195784Srpaulo rt->rt_priv = (void *)ALIGN(&rt[1]); 213283555Sadrian MESH_RT_ENTRY_LOCK_INIT(rt, "MBSS_RT"); 214283291Sjkim callout_init(&rt->rt_discovery, 1); 215234877Smonthadar rt->rt_updtime = ticks; /* create time */ 216195784Srpaulo TAILQ_INSERT_TAIL(&ms->ms_routes, rt, rt_next); 217195784Srpaulo } 218195784Srpaulo return rt; 219195784Srpaulo} 220195784Srpaulo 221195618Srpaulostruct ieee80211_mesh_route * 222195618Srpauloieee80211_mesh_rt_find(struct ieee80211vap *vap, 223195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 224195618Srpaulo{ 225195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 226195618Srpaulo struct ieee80211_mesh_route *rt; 227195618Srpaulo 228195618Srpaulo MESH_RT_LOCK(ms); 229195784Srpaulo rt = mesh_rt_find_locked(ms, dest); 230195618Srpaulo MESH_RT_UNLOCK(ms); 231195784Srpaulo return rt; 232195618Srpaulo} 233195618Srpaulo 234195618Srpaulostruct ieee80211_mesh_route * 235195618Srpauloieee80211_mesh_rt_add(struct ieee80211vap *vap, 236195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 237195618Srpaulo{ 238195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 239195618Srpaulo struct ieee80211_mesh_route *rt; 240195618Srpaulo 241195618Srpaulo KASSERT(ieee80211_mesh_rt_find(vap, dest) == NULL, 242195618Srpaulo ("%s: duplicate entry in the routing table", __func__)); 243195618Srpaulo KASSERT(!IEEE80211_ADDR_EQ(vap->iv_myaddr, dest), 244195618Srpaulo ("%s: adding self to the routing table", __func__)); 245195618Srpaulo 246195618Srpaulo MESH_RT_LOCK(ms); 247234894Smonthadar rt = mesh_rt_add_locked(vap, dest); 248195618Srpaulo MESH_RT_UNLOCK(ms); 249195618Srpaulo return rt; 250195618Srpaulo} 251195618Srpaulo 252195784Srpaulo/* 253234877Smonthadar * Update the route lifetime and returns the updated lifetime. 254234877Smonthadar * If new_lifetime is zero and route is timedout it will be invalidated. 255234877Smonthadar * new_lifetime is in msec 256234877Smonthadar */ 257234877Smonthadarint 258234877Smonthadarieee80211_mesh_rt_update(struct ieee80211_mesh_route *rt, int new_lifetime) 259234877Smonthadar{ 260234877Smonthadar int timesince, now; 261234877Smonthadar uint32_t lifetime = 0; 262234877Smonthadar 263234881Smonthadar KASSERT(rt != NULL, ("route is NULL")); 264234881Smonthadar 265234877Smonthadar now = ticks; 266283555Sadrian MESH_RT_ENTRY_LOCK(rt); 267234879Smonthadar 268234879Smonthadar /* dont clobber a proxy entry gated by us */ 269234879Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY && rt->rt_nhops == 0) { 270283555Sadrian MESH_RT_ENTRY_UNLOCK(rt); 271234879Smonthadar return rt->rt_lifetime; 272234879Smonthadar } 273234879Smonthadar 274234877Smonthadar timesince = ticks_to_msecs(now - rt->rt_updtime); 275234877Smonthadar rt->rt_updtime = now; 276234877Smonthadar if (timesince >= rt->rt_lifetime) { 277234877Smonthadar if (new_lifetime != 0) { 278234877Smonthadar rt->rt_lifetime = new_lifetime; 279234877Smonthadar } 280234877Smonthadar else { 281234877Smonthadar rt->rt_flags &= ~IEEE80211_MESHRT_FLAGS_VALID; 282234877Smonthadar rt->rt_lifetime = 0; 283234877Smonthadar } 284234877Smonthadar } else { 285234877Smonthadar /* update what is left of lifetime */ 286234877Smonthadar rt->rt_lifetime = rt->rt_lifetime - timesince; 287234877Smonthadar rt->rt_lifetime = MESH_ROUTE_LIFETIME_MAX( 288234877Smonthadar new_lifetime, rt->rt_lifetime); 289234877Smonthadar } 290234877Smonthadar lifetime = rt->rt_lifetime; 291283555Sadrian MESH_RT_ENTRY_UNLOCK(rt); 292234877Smonthadar 293234877Smonthadar return lifetime; 294234877Smonthadar} 295234877Smonthadar 296234877Smonthadar/* 297195784Srpaulo * Add a proxy route (as needed) for the specified destination. 298195784Srpaulo */ 299195618Srpaulovoid 300195784Srpauloieee80211_mesh_proxy_check(struct ieee80211vap *vap, 301195784Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 302195784Srpaulo{ 303195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 304195784Srpaulo struct ieee80211_mesh_route *rt; 305195784Srpaulo 306195784Srpaulo MESH_RT_LOCK(ms); 307195784Srpaulo rt = mesh_rt_find_locked(ms, dest); 308195784Srpaulo if (rt == NULL) { 309234894Smonthadar rt = mesh_rt_add_locked(vap, dest); 310195784Srpaulo if (rt == NULL) { 311195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 312195784Srpaulo "%s", "unable to add proxy entry"); 313195784Srpaulo vap->iv_stats.is_mesh_rtaddfailed++; 314195784Srpaulo } else { 315195908Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 316195908Srpaulo "%s", "add proxy entry"); 317234878Smonthadar IEEE80211_ADDR_COPY(rt->rt_mesh_gate, vap->iv_myaddr); 318195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr); 319195784Srpaulo rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID 320195784Srpaulo | IEEE80211_MESHRT_FLAGS_PROXY; 321195784Srpaulo } 322195784Srpaulo } else if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 323234878Smonthadar KASSERT(rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY, 324234878Smonthadar ("no proxy flag for poxy entry")); 325195784Srpaulo struct ieee80211com *ic = vap->iv_ic; 326195784Srpaulo /* 327195784Srpaulo * Fix existing entry created by received frames from 328195784Srpaulo * stations that have some memory of dest. We also 329195784Srpaulo * flush any frames held on the staging queue; delivering 330195784Srpaulo * them is too much trouble right now. 331195784Srpaulo */ 332195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 333195784Srpaulo "%s", "fix proxy entry"); 334195784Srpaulo IEEE80211_ADDR_COPY(rt->rt_nexthop, vap->iv_myaddr); 335195784Srpaulo rt->rt_flags |= IEEE80211_MESHRT_FLAGS_VALID 336195784Srpaulo | IEEE80211_MESHRT_FLAGS_PROXY; 337195784Srpaulo /* XXX belongs in hwmp */ 338195784Srpaulo ieee80211_ageq_drain_node(&ic->ic_stageq, 339195784Srpaulo (void *)(uintptr_t) ieee80211_mac_hash(ic, dest)); 340195784Srpaulo /* XXX stat? */ 341195784Srpaulo } 342195784Srpaulo MESH_RT_UNLOCK(ms); 343195784Srpaulo} 344195784Srpaulo 345195784Srpaulostatic __inline void 346195784Srpaulomesh_rt_del(struct ieee80211_mesh_state *ms, struct ieee80211_mesh_route *rt) 347195784Srpaulo{ 348195784Srpaulo TAILQ_REMOVE(&ms->ms_routes, rt, rt_next); 349234877Smonthadar /* 350234877Smonthadar * Grab the lock before destroying it, to be sure no one else 351234877Smonthadar * is holding the route. 352234877Smonthadar */ 353283555Sadrian MESH_RT_ENTRY_LOCK(rt); 354234894Smonthadar callout_drain(&rt->rt_discovery); 355283555Sadrian MESH_RT_ENTRY_LOCK_DESTROY(rt); 356283538Sadrian IEEE80211_FREE(rt, M_80211_MESH_RT); 357195784Srpaulo} 358195784Srpaulo 359195784Srpaulovoid 360195618Srpauloieee80211_mesh_rt_del(struct ieee80211vap *vap, 361195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 362195618Srpaulo{ 363195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 364195618Srpaulo struct ieee80211_mesh_route *rt, *next; 365195618Srpaulo 366195618Srpaulo MESH_RT_LOCK(ms); 367195618Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 368195618Srpaulo if (IEEE80211_ADDR_EQ(rt->rt_dest, dest)) { 369234890Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) { 370234890Smonthadar ms->ms_ppath->mpp_senderror(vap, dest, rt, 371234890Smonthadar IEEE80211_REASON_MESH_PERR_NO_PROXY); 372234890Smonthadar } else { 373234890Smonthadar ms->ms_ppath->mpp_senderror(vap, dest, rt, 374234890Smonthadar IEEE80211_REASON_MESH_PERR_DEST_UNREACH); 375234890Smonthadar } 376195784Srpaulo mesh_rt_del(ms, rt); 377195618Srpaulo MESH_RT_UNLOCK(ms); 378195618Srpaulo return; 379195618Srpaulo } 380195618Srpaulo } 381195618Srpaulo MESH_RT_UNLOCK(ms); 382195618Srpaulo} 383195618Srpaulo 384195618Srpaulovoid 385195618Srpauloieee80211_mesh_rt_flush(struct ieee80211vap *vap) 386195618Srpaulo{ 387195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 388195618Srpaulo struct ieee80211_mesh_route *rt, *next; 389195618Srpaulo 390195618Srpaulo if (ms == NULL) 391195618Srpaulo return; 392195618Srpaulo MESH_RT_LOCK(ms); 393195784Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) 394195784Srpaulo mesh_rt_del(ms, rt); 395195784Srpaulo MESH_RT_UNLOCK(ms); 396195784Srpaulo} 397195784Srpaulo 398195908Srpaulovoid 399195908Srpauloieee80211_mesh_rt_flush_peer(struct ieee80211vap *vap, 400195908Srpaulo const uint8_t peer[IEEE80211_ADDR_LEN]) 401195908Srpaulo{ 402195908Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 403195908Srpaulo struct ieee80211_mesh_route *rt, *next; 404195908Srpaulo 405195908Srpaulo MESH_RT_LOCK(ms); 406195908Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 407195908Srpaulo if (IEEE80211_ADDR_EQ(rt->rt_nexthop, peer)) 408195908Srpaulo mesh_rt_del(ms, rt); 409195908Srpaulo } 410195908Srpaulo MESH_RT_UNLOCK(ms); 411195908Srpaulo} 412195908Srpaulo 413195784Srpaulo/* 414195784Srpaulo * Flush expired routing entries, i.e. those in invalid state for 415195784Srpaulo * some time. 416195784Srpaulo */ 417195784Srpaulostatic void 418195784Srpaulomesh_rt_flush_invalid(struct ieee80211vap *vap) 419195784Srpaulo{ 420195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 421195784Srpaulo struct ieee80211_mesh_route *rt, *next; 422195784Srpaulo 423195784Srpaulo if (ms == NULL) 424195784Srpaulo return; 425195784Srpaulo MESH_RT_LOCK(ms); 426195618Srpaulo TAILQ_FOREACH_SAFE(rt, &ms->ms_routes, rt_next, next) { 427234894Smonthadar /* Discover paths will be deleted by their own callout */ 428234894Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_DISCOVER) 429234894Smonthadar continue; 430234877Smonthadar ieee80211_mesh_rt_update(rt, 0); 431234894Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) 432195784Srpaulo mesh_rt_del(ms, rt); 433195618Srpaulo } 434195618Srpaulo MESH_RT_UNLOCK(ms); 435195618Srpaulo} 436195618Srpaulo 437195618Srpauloint 438195618Srpauloieee80211_mesh_register_proto_path(const struct ieee80211_mesh_proto_path *mpp) 439195618Srpaulo{ 440195618Srpaulo int i, firstempty = -1; 441195618Srpaulo 442288086Sadrian for (i = 0; i < nitems(mesh_proto_paths); i++) { 443197975Srpaulo if (strncmp(mpp->mpp_descr, mesh_proto_paths[i].mpp_descr, 444197975Srpaulo IEEE80211_MESH_PROTO_DSZ) == 0) 445195618Srpaulo return EEXIST; 446197975Srpaulo if (!mesh_proto_paths[i].mpp_active && firstempty == -1) 447195618Srpaulo firstempty = i; 448195618Srpaulo } 449195618Srpaulo if (firstempty < 0) 450195618Srpaulo return ENOSPC; 451195618Srpaulo memcpy(&mesh_proto_paths[firstempty], mpp, sizeof(*mpp)); 452197975Srpaulo mesh_proto_paths[firstempty].mpp_active = 1; 453195618Srpaulo return 0; 454195618Srpaulo} 455195618Srpaulo 456195618Srpauloint 457195618Srpauloieee80211_mesh_register_proto_metric(const struct 458195618Srpaulo ieee80211_mesh_proto_metric *mpm) 459195618Srpaulo{ 460195618Srpaulo int i, firstempty = -1; 461195618Srpaulo 462288086Sadrian for (i = 0; i < nitems(mesh_proto_metrics); i++) { 463197975Srpaulo if (strncmp(mpm->mpm_descr, mesh_proto_metrics[i].mpm_descr, 464197975Srpaulo IEEE80211_MESH_PROTO_DSZ) == 0) 465195618Srpaulo return EEXIST; 466197975Srpaulo if (!mesh_proto_metrics[i].mpm_active && firstempty == -1) 467195618Srpaulo firstempty = i; 468195618Srpaulo } 469195618Srpaulo if (firstempty < 0) 470195618Srpaulo return ENOSPC; 471195618Srpaulo memcpy(&mesh_proto_metrics[firstempty], mpm, sizeof(*mpm)); 472197975Srpaulo mesh_proto_metrics[firstempty].mpm_active = 1; 473195618Srpaulo return 0; 474195618Srpaulo} 475195618Srpaulo 476195618Srpaulostatic int 477195618Srpaulomesh_select_proto_path(struct ieee80211vap *vap, const char *name) 478195618Srpaulo{ 479195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 480195618Srpaulo int i; 481195618Srpaulo 482288086Sadrian for (i = 0; i < nitems(mesh_proto_paths); i++) { 483195618Srpaulo if (strcasecmp(mesh_proto_paths[i].mpp_descr, name) == 0) { 484195618Srpaulo ms->ms_ppath = &mesh_proto_paths[i]; 485195618Srpaulo return 0; 486195618Srpaulo } 487195618Srpaulo } 488195618Srpaulo return ENOENT; 489195618Srpaulo} 490195618Srpaulo 491195618Srpaulostatic int 492195618Srpaulomesh_select_proto_metric(struct ieee80211vap *vap, const char *name) 493195618Srpaulo{ 494195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 495195618Srpaulo int i; 496195618Srpaulo 497288086Sadrian for (i = 0; i < nitems(mesh_proto_metrics); i++) { 498195618Srpaulo if (strcasecmp(mesh_proto_metrics[i].mpm_descr, name) == 0) { 499195618Srpaulo ms->ms_pmetric = &mesh_proto_metrics[i]; 500195618Srpaulo return 0; 501195618Srpaulo } 502195618Srpaulo } 503195618Srpaulo return ENOENT; 504195618Srpaulo} 505195618Srpaulo 506195618Srpaulostatic void 507246506Smonthadarmesh_gatemode_setup(struct ieee80211vap *vap) 508246506Smonthadar{ 509246506Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 510246506Smonthadar 511246506Smonthadar /* 512246506Smonthadar * NB: When a mesh gate is running as a ROOT it shall 513246506Smonthadar * not send out periodic GANNs but instead mark the 514246506Smonthadar * mesh gate flag for the corresponding proactive PREQ 515246506Smonthadar * and RANN frames. 516246506Smonthadar */ 517246506Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_ROOT || 518246506Smonthadar (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) == 0) { 519246506Smonthadar callout_drain(&ms->ms_gatetimer); 520246506Smonthadar return ; 521246506Smonthadar } 522246506Smonthadar callout_reset(&ms->ms_gatetimer, ieee80211_mesh_gateint, 523246506Smonthadar mesh_gatemode_cb, vap); 524246506Smonthadar} 525246506Smonthadar 526246506Smonthadarstatic void 527246506Smonthadarmesh_gatemode_cb(void *arg) 528246506Smonthadar{ 529246506Smonthadar struct ieee80211vap *vap = (struct ieee80211vap *)arg; 530246506Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 531246506Smonthadar struct ieee80211_meshgann_ie gann; 532246506Smonthadar 533246506Smonthadar gann.gann_flags = 0; /* Reserved */ 534246506Smonthadar gann.gann_hopcount = 0; 535246506Smonthadar gann.gann_ttl = ms->ms_ttl; 536246506Smonthadar IEEE80211_ADDR_COPY(gann.gann_addr, vap->iv_myaddr); 537246506Smonthadar gann.gann_seq = ms->ms_gateseq++; 538246506Smonthadar gann.gann_interval = ieee80211_mesh_gateint; 539246506Smonthadar 540246520Smonthadar IEEE80211_NOTE(vap, IEEE80211_MSG_MESH, vap->iv_bss, 541246520Smonthadar "send broadcast GANN (seq %u)", gann.gann_seq); 542246520Smonthadar 543246506Smonthadar ieee80211_send_action(vap->iv_bss, IEEE80211_ACTION_CAT_MESH, 544246506Smonthadar IEEE80211_ACTION_MESH_GANN, &gann); 545246506Smonthadar mesh_gatemode_setup(vap); 546246506Smonthadar} 547246506Smonthadar 548246506Smonthadarstatic void 549195618Srpauloieee80211_mesh_init(void) 550195618Srpaulo{ 551195618Srpaulo 552195618Srpaulo memset(mesh_proto_paths, 0, sizeof(mesh_proto_paths)); 553195618Srpaulo memset(mesh_proto_metrics, 0, sizeof(mesh_proto_metrics)); 554195618Srpaulo 555195618Srpaulo /* 556195618Srpaulo * Setup mesh parameters that depends on the clock frequency. 557195618Srpaulo */ 558246506Smonthadar ieee80211_mesh_gateint = msecs_to_ticks(10000); 559195618Srpaulo ieee80211_mesh_retrytimeout = msecs_to_ticks(40); 560195618Srpaulo ieee80211_mesh_holdingtimeout = msecs_to_ticks(40); 561195618Srpaulo ieee80211_mesh_confirmtimeout = msecs_to_ticks(40); 562246497Smonthadar ieee80211_mesh_backofftimeout = msecs_to_ticks(5000); 563195618Srpaulo 564195618Srpaulo /* 565195618Srpaulo * Register action frame handlers. 566195618Srpaulo */ 567234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 568195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, 569195618Srpaulo mesh_recv_action_meshpeering_open); 570234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 571195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 572195618Srpaulo mesh_recv_action_meshpeering_confirm); 573234874Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 574195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 575195618Srpaulo mesh_recv_action_meshpeering_close); 576232479Sadrian ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESH, 577232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, mesh_recv_action_meshlmetric); 578246506Smonthadar ieee80211_recv_action_register(IEEE80211_ACTION_CAT_MESH, 579246506Smonthadar IEEE80211_ACTION_MESH_GANN, mesh_recv_action_meshgate); 580195618Srpaulo 581234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 582195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, 583195618Srpaulo mesh_send_action_meshpeering_open); 584234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 585195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 586195618Srpaulo mesh_send_action_meshpeering_confirm); 587234874Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_SELF_PROT, 588195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 589195618Srpaulo mesh_send_action_meshpeering_close); 590232479Sadrian ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESH, 591232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, 592232479Sadrian mesh_send_action_meshlmetric); 593246506Smonthadar ieee80211_send_action_register(IEEE80211_ACTION_CAT_MESH, 594246506Smonthadar IEEE80211_ACTION_MESH_GANN, 595246506Smonthadar mesh_send_action_meshgate); 596195618Srpaulo 597195618Srpaulo /* 598195618Srpaulo * Register Airtime Link Metric. 599195618Srpaulo */ 600195618Srpaulo ieee80211_mesh_register_proto_metric(&mesh_metric_airtime); 601195618Srpaulo 602195618Srpaulo} 603195618SrpauloSYSINIT(wlan_mesh, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_mesh_init, NULL); 604195618Srpaulo 605195618Srpaulovoid 606195618Srpauloieee80211_mesh_attach(struct ieee80211com *ic) 607195618Srpaulo{ 608195618Srpaulo ic->ic_vattach[IEEE80211_M_MBSS] = mesh_vattach; 609195618Srpaulo} 610195618Srpaulo 611195618Srpaulovoid 612195618Srpauloieee80211_mesh_detach(struct ieee80211com *ic) 613195618Srpaulo{ 614195618Srpaulo} 615195618Srpaulo 616195618Srpaulostatic void 617195618Srpaulomesh_vdetach_peers(void *arg, struct ieee80211_node *ni) 618195618Srpaulo{ 619195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 620195618Srpaulo uint16_t args[3]; 621195618Srpaulo 622195618Srpaulo if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED) { 623195618Srpaulo args[0] = ni->ni_mlpid; 624195618Srpaulo args[1] = ni->ni_mllid; 625195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 626195618Srpaulo ieee80211_send_action(ni, 627234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 628195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 629195618Srpaulo args); 630195618Srpaulo } 631195784Srpaulo callout_drain(&ni->ni_mltimer); 632195618Srpaulo /* XXX belongs in hwmp */ 633195618Srpaulo ieee80211_ageq_drain_node(&ic->ic_stageq, 634195618Srpaulo (void *)(uintptr_t) ieee80211_mac_hash(ic, ni->ni_macaddr)); 635195618Srpaulo} 636195618Srpaulo 637195618Srpaulostatic void 638195618Srpaulomesh_vdetach(struct ieee80211vap *vap) 639195618Srpaulo{ 640195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 641195618Srpaulo 642195784Srpaulo callout_drain(&ms->ms_cleantimer); 643195618Srpaulo ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_vdetach_peers, 644195618Srpaulo NULL); 645195618Srpaulo ieee80211_mesh_rt_flush(vap); 646283555Sadrian MESH_RT_LOCK_DESTROY(ms); 647195618Srpaulo ms->ms_ppath->mpp_vdetach(vap); 648283538Sadrian IEEE80211_FREE(vap->iv_mesh, M_80211_VAP); 649195618Srpaulo vap->iv_mesh = NULL; 650195618Srpaulo} 651195618Srpaulo 652195618Srpaulostatic void 653195618Srpaulomesh_vattach(struct ieee80211vap *vap) 654195618Srpaulo{ 655195618Srpaulo struct ieee80211_mesh_state *ms; 656195618Srpaulo vap->iv_newstate = mesh_newstate; 657195618Srpaulo vap->iv_input = mesh_input; 658195618Srpaulo vap->iv_opdetach = mesh_vdetach; 659195618Srpaulo vap->iv_recv_mgmt = mesh_recv_mgmt; 660205277Srpaulo vap->iv_recv_ctl = mesh_recv_ctl; 661283538Sadrian ms = IEEE80211_MALLOC(sizeof(struct ieee80211_mesh_state), M_80211_VAP, 662283538Sadrian IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 663195618Srpaulo if (ms == NULL) { 664195618Srpaulo printf("%s: couldn't alloc MBSS state\n", __func__); 665195784Srpaulo return; 666195618Srpaulo } 667195618Srpaulo vap->iv_mesh = ms; 668195618Srpaulo ms->ms_seq = 0; 669195618Srpaulo ms->ms_flags = (IEEE80211_MESHFLAGS_AP | IEEE80211_MESHFLAGS_FWD); 670195618Srpaulo ms->ms_ttl = IEEE80211_MESH_DEFAULT_TTL; 671246508Smonthadar TAILQ_INIT(&ms->ms_known_gates); 672195618Srpaulo TAILQ_INIT(&ms->ms_routes); 673283555Sadrian MESH_RT_LOCK_INIT(ms, "MBSS"); 674283291Sjkim callout_init(&ms->ms_cleantimer, 1); 675283291Sjkim callout_init(&ms->ms_gatetimer, 1); 676246506Smonthadar ms->ms_gateseq = 0; 677195618Srpaulo mesh_select_proto_metric(vap, "AIRTIME"); 678195618Srpaulo KASSERT(ms->ms_pmetric, ("ms_pmetric == NULL")); 679195618Srpaulo mesh_select_proto_path(vap, "HWMP"); 680195618Srpaulo KASSERT(ms->ms_ppath, ("ms_ppath == NULL")); 681195618Srpaulo ms->ms_ppath->mpp_vattach(vap); 682195618Srpaulo} 683195618Srpaulo 684195618Srpaulo/* 685195618Srpaulo * IEEE80211_M_MBSS vap state machine handler. 686195618Srpaulo */ 687195618Srpaulostatic int 688195618Srpaulomesh_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 689195618Srpaulo{ 690195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 691195618Srpaulo struct ieee80211com *ic = vap->iv_ic; 692195618Srpaulo struct ieee80211_node *ni; 693195618Srpaulo enum ieee80211_state ostate; 694195618Srpaulo 695195618Srpaulo IEEE80211_LOCK_ASSERT(ic); 696195618Srpaulo 697195618Srpaulo ostate = vap->iv_state; 698195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s -> %s (%d)\n", 699195618Srpaulo __func__, ieee80211_state_name[ostate], 700195618Srpaulo ieee80211_state_name[nstate], arg); 701195618Srpaulo vap->iv_state = nstate; /* state transition */ 702195618Srpaulo if (ostate != IEEE80211_S_SCAN) 703195618Srpaulo ieee80211_cancel_scan(vap); /* background scan */ 704195618Srpaulo ni = vap->iv_bss; /* NB: no reference held */ 705246506Smonthadar if (nstate != IEEE80211_S_RUN && ostate == IEEE80211_S_RUN) { 706195784Srpaulo callout_drain(&ms->ms_cleantimer); 707246506Smonthadar callout_drain(&ms->ms_gatetimer); 708246506Smonthadar } 709195618Srpaulo switch (nstate) { 710195618Srpaulo case IEEE80211_S_INIT: 711195618Srpaulo switch (ostate) { 712195618Srpaulo case IEEE80211_S_SCAN: 713195618Srpaulo ieee80211_cancel_scan(vap); 714195618Srpaulo break; 715195618Srpaulo case IEEE80211_S_CAC: 716195618Srpaulo ieee80211_dfs_cac_stop(vap); 717195618Srpaulo break; 718195618Srpaulo case IEEE80211_S_RUN: 719195618Srpaulo ieee80211_iterate_nodes(&ic->ic_sta, 720195618Srpaulo mesh_vdetach_peers, NULL); 721195618Srpaulo break; 722195618Srpaulo default: 723195618Srpaulo break; 724195618Srpaulo } 725195618Srpaulo if (ostate != IEEE80211_S_INIT) { 726195618Srpaulo /* NB: optimize INIT -> INIT case */ 727195618Srpaulo ieee80211_reset_bss(vap); 728195784Srpaulo ieee80211_mesh_rt_flush(vap); 729195618Srpaulo } 730195618Srpaulo break; 731195618Srpaulo case IEEE80211_S_SCAN: 732195618Srpaulo switch (ostate) { 733195618Srpaulo case IEEE80211_S_INIT: 734195618Srpaulo if (vap->iv_des_chan != IEEE80211_CHAN_ANYC && 735195618Srpaulo !IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan) && 736195618Srpaulo ms->ms_idlen != 0) { 737195618Srpaulo /* 738195618Srpaulo * Already have a channel and a mesh ID; bypass 739195618Srpaulo * the scan and startup immediately. 740195618Srpaulo */ 741195618Srpaulo ieee80211_create_ibss(vap, vap->iv_des_chan); 742195618Srpaulo break; 743195618Srpaulo } 744195618Srpaulo /* 745195618Srpaulo * Initiate a scan. We can come here as a result 746195618Srpaulo * of an IEEE80211_IOC_SCAN_REQ too in which case 747195618Srpaulo * the vap will be marked with IEEE80211_FEXT_SCANREQ 748195618Srpaulo * and the scan request parameters will be present 749195618Srpaulo * in iv_scanreq. Otherwise we do the default. 750195618Srpaulo */ 751195618Srpaulo if (vap->iv_flags_ext & IEEE80211_FEXT_SCANREQ) { 752195618Srpaulo ieee80211_check_scan(vap, 753195618Srpaulo vap->iv_scanreq_flags, 754195618Srpaulo vap->iv_scanreq_duration, 755195618Srpaulo vap->iv_scanreq_mindwell, 756195618Srpaulo vap->iv_scanreq_maxdwell, 757195618Srpaulo vap->iv_scanreq_nssid, vap->iv_scanreq_ssid); 758195618Srpaulo vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ; 759195618Srpaulo } else 760195618Srpaulo ieee80211_check_scan_current(vap); 761195618Srpaulo break; 762195618Srpaulo default: 763195618Srpaulo break; 764195618Srpaulo } 765195618Srpaulo break; 766195618Srpaulo case IEEE80211_S_CAC: 767195618Srpaulo /* 768195618Srpaulo * Start CAC on a DFS channel. We come here when starting 769195618Srpaulo * a bss on a DFS channel (see ieee80211_create_ibss). 770195618Srpaulo */ 771195618Srpaulo ieee80211_dfs_cac_start(vap); 772195618Srpaulo break; 773195618Srpaulo case IEEE80211_S_RUN: 774195618Srpaulo switch (ostate) { 775195618Srpaulo case IEEE80211_S_INIT: 776195618Srpaulo /* 777195618Srpaulo * Already have a channel; bypass the 778195618Srpaulo * scan and startup immediately. 779195618Srpaulo * Note that ieee80211_create_ibss will call 780195618Srpaulo * back to do a RUN->RUN state change. 781195618Srpaulo */ 782195618Srpaulo ieee80211_create_ibss(vap, 783195618Srpaulo ieee80211_ht_adjust_channel(ic, 784195618Srpaulo ic->ic_curchan, vap->iv_flags_ht)); 785195618Srpaulo /* NB: iv_bss is changed on return */ 786195618Srpaulo break; 787195618Srpaulo case IEEE80211_S_CAC: 788195618Srpaulo /* 789195618Srpaulo * NB: This is the normal state change when CAC 790195618Srpaulo * expires and no radar was detected; no need to 791195618Srpaulo * clear the CAC timer as it's already expired. 792195618Srpaulo */ 793195618Srpaulo /* fall thru... */ 794195618Srpaulo case IEEE80211_S_CSA: 795195618Srpaulo#if 0 796195618Srpaulo /* 797195618Srpaulo * Shorten inactivity timer of associated stations 798195618Srpaulo * to weed out sta's that don't follow a CSA. 799195618Srpaulo */ 800195618Srpaulo ieee80211_iterate_nodes(&ic->ic_sta, sta_csa, vap); 801195618Srpaulo#endif 802195618Srpaulo /* 803195618Srpaulo * Update bss node channel to reflect where 804195618Srpaulo * we landed after CSA. 805195618Srpaulo */ 806300232Savos ieee80211_node_set_chan(ni, 807195618Srpaulo ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 808300232Savos ieee80211_htchanflags(ni->ni_chan))); 809195618Srpaulo /* XXX bypass debug msgs */ 810195618Srpaulo break; 811195618Srpaulo case IEEE80211_S_SCAN: 812195618Srpaulo case IEEE80211_S_RUN: 813195618Srpaulo#ifdef IEEE80211_DEBUG 814195618Srpaulo if (ieee80211_msg_debug(vap)) { 815195618Srpaulo ieee80211_note(vap, 816195618Srpaulo "synchronized with %s meshid ", 817195618Srpaulo ether_sprintf(ni->ni_meshid)); 818195618Srpaulo ieee80211_print_essid(ni->ni_meshid, 819195618Srpaulo ni->ni_meshidlen); 820195618Srpaulo /* XXX MCS/HT */ 821195618Srpaulo printf(" channel %d\n", 822195618Srpaulo ieee80211_chan2ieee(ic, ic->ic_curchan)); 823195618Srpaulo } 824195618Srpaulo#endif 825195618Srpaulo break; 826195618Srpaulo default: 827195618Srpaulo break; 828195618Srpaulo } 829300232Savos ieee80211_node_authorize(ni); 830195813Ssam callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact, 831195784Srpaulo mesh_rt_cleanup_cb, vap); 832246506Smonthadar mesh_gatemode_setup(vap); 833195618Srpaulo break; 834195618Srpaulo default: 835195618Srpaulo break; 836195618Srpaulo } 837195618Srpaulo /* NB: ostate not nstate */ 838195618Srpaulo ms->ms_ppath->mpp_newstate(vap, ostate, arg); 839195618Srpaulo return 0; 840195618Srpaulo} 841195618Srpaulo 842195784Srpaulostatic void 843195784Srpaulomesh_rt_cleanup_cb(void *arg) 844195784Srpaulo{ 845195784Srpaulo struct ieee80211vap *vap = arg; 846195784Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 847195784Srpaulo 848195784Srpaulo mesh_rt_flush_invalid(vap); 849195813Ssam callout_reset(&ms->ms_cleantimer, ms->ms_ppath->mpp_inact, 850195784Srpaulo mesh_rt_cleanup_cb, vap); 851195784Srpaulo} 852195784Srpaulo 853246509Smonthadar/* 854246509Smonthadar * Mark a mesh STA as gate and return a pointer to it. 855246509Smonthadar * If this is first time, we create a new gate route. 856246509Smonthadar * Always update the path route to this mesh gate. 857246509Smonthadar */ 858246509Smonthadarstruct ieee80211_mesh_gate_route * 859246509Smonthadarieee80211_mesh_mark_gate(struct ieee80211vap *vap, const uint8_t *addr, 860246509Smonthadar struct ieee80211_mesh_route *rt) 861246509Smonthadar{ 862246509Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 863246509Smonthadar struct ieee80211_mesh_gate_route *gr = NULL, *next; 864246509Smonthadar int found = 0; 865195784Srpaulo 866246509Smonthadar MESH_RT_LOCK(ms); 867246509Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, next) { 868246509Smonthadar if (IEEE80211_ADDR_EQ(gr->gr_addr, addr)) { 869246509Smonthadar found = 1; 870246509Smonthadar break; 871246509Smonthadar } 872246509Smonthadar } 873246509Smonthadar 874246509Smonthadar if (!found) { 875246509Smonthadar /* New mesh gate add it to known table. */ 876246509Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, addr, 877246509Smonthadar "%s", "stored new gate information from pro-PREQ."); 878283538Sadrian gr = IEEE80211_MALLOC(ALIGN(sizeof(struct ieee80211_mesh_gate_route)), 879283538Sadrian M_80211_MESH_GT_RT, 880283538Sadrian IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 881246509Smonthadar IEEE80211_ADDR_COPY(gr->gr_addr, addr); 882246509Smonthadar TAILQ_INSERT_TAIL(&ms->ms_known_gates, gr, gr_next); 883246509Smonthadar } 884246509Smonthadar gr->gr_route = rt; 885246509Smonthadar /* TODO: link from path route to gate route */ 886246509Smonthadar MESH_RT_UNLOCK(ms); 887246509Smonthadar 888246509Smonthadar return gr; 889246509Smonthadar} 890246509Smonthadar 891246509Smonthadar 892195618Srpaulo/* 893195618Srpaulo * Helper function to note the Mesh Peer Link FSM change. 894195618Srpaulo */ 895195618Srpaulostatic void 896195618Srpaulomesh_linkchange(struct ieee80211_node *ni, enum ieee80211_mesh_mlstate state) 897195618Srpaulo{ 898195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 899195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 900195618Srpaulo#ifdef IEEE80211_DEBUG 901195618Srpaulo static const char *meshlinkstates[] = { 902195618Srpaulo [IEEE80211_NODE_MESH_IDLE] = "IDLE", 903195618Srpaulo [IEEE80211_NODE_MESH_OPENSNT] = "OPEN SENT", 904195618Srpaulo [IEEE80211_NODE_MESH_OPENRCV] = "OPEN RECEIVED", 905195618Srpaulo [IEEE80211_NODE_MESH_CONFIRMRCV] = "CONFIRM RECEIVED", 906195618Srpaulo [IEEE80211_NODE_MESH_ESTABLISHED] = "ESTABLISHED", 907195618Srpaulo [IEEE80211_NODE_MESH_HOLDING] = "HOLDING" 908195618Srpaulo }; 909195618Srpaulo#endif 910195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_MESH, 911195618Srpaulo ni, "peer link: %s -> %s", 912195618Srpaulo meshlinkstates[ni->ni_mlstate], meshlinkstates[state]); 913195618Srpaulo 914195618Srpaulo /* track neighbor count */ 915195618Srpaulo if (state == IEEE80211_NODE_MESH_ESTABLISHED && 916195618Srpaulo ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) { 917195618Srpaulo KASSERT(ms->ms_neighbors < 65535, ("neighbor count overflow")); 918195618Srpaulo ms->ms_neighbors++; 919198242Srpaulo ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF); 920195618Srpaulo } else if (ni->ni_mlstate == IEEE80211_NODE_MESH_ESTABLISHED && 921195618Srpaulo state != IEEE80211_NODE_MESH_ESTABLISHED) { 922195618Srpaulo KASSERT(ms->ms_neighbors > 0, ("neighbor count 0")); 923195618Srpaulo ms->ms_neighbors--; 924198242Srpaulo ieee80211_beacon_notify(vap, IEEE80211_BEACON_MESHCONF); 925195618Srpaulo } 926195618Srpaulo ni->ni_mlstate = state; 927195784Srpaulo switch (state) { 928195784Srpaulo case IEEE80211_NODE_MESH_HOLDING: 929195618Srpaulo ms->ms_ppath->mpp_peerdown(ni); 930195784Srpaulo break; 931195784Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 932195784Srpaulo ieee80211_mesh_discover(vap, ni->ni_macaddr, NULL); 933195784Srpaulo break; 934195784Srpaulo default: 935195784Srpaulo break; 936195784Srpaulo } 937195618Srpaulo} 938195618Srpaulo 939195618Srpaulo/* 940195618Srpaulo * Helper function to generate a unique local ID required for mesh 941195618Srpaulo * peer establishment. 942195618Srpaulo */ 943195618Srpaulostatic void 944195618Srpaulomesh_checkid(void *arg, struct ieee80211_node *ni) 945195618Srpaulo{ 946195618Srpaulo uint16_t *r = arg; 947195618Srpaulo 948195618Srpaulo if (*r == ni->ni_mllid) 949195618Srpaulo *(uint16_t *)arg = 0; 950195618Srpaulo} 951195618Srpaulo 952195618Srpaulostatic uint32_t 953195618Srpaulomesh_generateid(struct ieee80211vap *vap) 954195618Srpaulo{ 955195618Srpaulo int maxiter = 4; 956195618Srpaulo uint16_t r; 957195618Srpaulo 958195618Srpaulo do { 959195618Srpaulo get_random_bytes(&r, 2); 960195618Srpaulo ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, mesh_checkid, &r); 961195618Srpaulo maxiter--; 962195618Srpaulo } while (r == 0 && maxiter > 0); 963195618Srpaulo return r; 964195618Srpaulo} 965195618Srpaulo 966195618Srpaulo/* 967195618Srpaulo * Verifies if we already received this packet by checking its 968195618Srpaulo * sequence number. 969195908Srpaulo * Returns 0 if the frame is to be accepted, 1 otherwise. 970195618Srpaulo */ 971195618Srpaulostatic int 972195618Srpaulomesh_checkpseq(struct ieee80211vap *vap, 973195618Srpaulo const uint8_t source[IEEE80211_ADDR_LEN], uint32_t seq) 974195618Srpaulo{ 975195618Srpaulo struct ieee80211_mesh_route *rt; 976195618Srpaulo 977195618Srpaulo rt = ieee80211_mesh_rt_find(vap, source); 978195618Srpaulo if (rt == NULL) { 979195908Srpaulo rt = ieee80211_mesh_rt_add(vap, source); 980195908Srpaulo if (rt == NULL) { 981195908Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source, 982195908Srpaulo "%s", "add mcast route failed"); 983195908Srpaulo vap->iv_stats.is_mesh_rtaddfailed++; 984195908Srpaulo return 1; 985195908Srpaulo } 986195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, source, 987195784Srpaulo "add mcast route, mesh seqno %d", seq); 988195908Srpaulo rt->rt_lastmseq = seq; 989195618Srpaulo return 0; 990195618Srpaulo } 991195618Srpaulo if (IEEE80211_MESH_SEQ_GEQ(rt->rt_lastmseq, seq)) { 992195618Srpaulo return 1; 993195618Srpaulo } else { 994195618Srpaulo rt->rt_lastmseq = seq; 995195618Srpaulo return 0; 996195618Srpaulo } 997195618Srpaulo} 998195618Srpaulo 999195618Srpaulo/* 1000195618Srpaulo * Iterate the routing table and locate the next hop. 1001195618Srpaulo */ 1002246512Smonthadarstruct ieee80211_node * 1003246512Smonthadarieee80211_mesh_find_txnode(struct ieee80211vap *vap, 1004195618Srpaulo const uint8_t dest[IEEE80211_ADDR_LEN]) 1005195618Srpaulo{ 1006195618Srpaulo struct ieee80211_mesh_route *rt; 1007195618Srpaulo 1008195618Srpaulo rt = ieee80211_mesh_rt_find(vap, dest); 1009195618Srpaulo if (rt == NULL) 1010195618Srpaulo return NULL; 1011246511Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 1012195784Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 1013246511Smonthadar "%s: !valid, flags 0x%x", __func__, rt->rt_flags); 1014195784Srpaulo /* XXX stat */ 1015195784Srpaulo return NULL; 1016195784Srpaulo } 1017246511Smonthadar if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) { 1018246511Smonthadar rt = ieee80211_mesh_rt_find(vap, rt->rt_mesh_gate); 1019246511Smonthadar if (rt == NULL) return NULL; 1020246511Smonthadar if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) { 1021246511Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, dest, 1022246511Smonthadar "%s: meshgate !valid, flags 0x%x", __func__, 1023246511Smonthadar rt->rt_flags); 1024246511Smonthadar /* XXX stat */ 1025246511Smonthadar return NULL; 1026246511Smonthadar } 1027246511Smonthadar } 1028195618Srpaulo return ieee80211_find_txnode(vap, rt->rt_nexthop); 1029195618Srpaulo} 1030195618Srpaulo 1031246511Smonthadarstatic void 1032246511Smonthadarmesh_transmit_to_gate(struct ieee80211vap *vap, struct mbuf *m, 1033246511Smonthadar struct ieee80211_mesh_route *rt_gate) 1034246511Smonthadar{ 1035246511Smonthadar struct ifnet *ifp = vap->iv_ifp; 1036246511Smonthadar struct ieee80211_node *ni; 1037246511Smonthadar 1038253745Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1039248069Sadrian 1040246512Smonthadar ni = ieee80211_mesh_find_txnode(vap, rt_gate->rt_dest); 1041246511Smonthadar if (ni == NULL) { 1042271861Sglebius if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1043246511Smonthadar m_freem(m); 1044246511Smonthadar return; 1045246511Smonthadar } 1046246511Smonthadar 1047246511Smonthadar /* 1048253727Sadrian * Send through the VAP packet transmit path. 1049253727Sadrian * This consumes the node ref grabbed above and 1050253727Sadrian * the mbuf, regardless of whether there's a problem 1051253727Sadrian * or not. 1052246511Smonthadar */ 1053253727Sadrian (void) ieee80211_vap_pkt_send_dest(vap, m, ni); 1054246511Smonthadar} 1055246511Smonthadar 1056195618Srpaulo/* 1057246510Smonthadar * Forward the queued frames to known valid mesh gates. 1058246510Smonthadar * Assume destination to be outside the MBSS (i.e. proxy entry), 1059246510Smonthadar * If no valid mesh gates are known silently discard queued frames. 1060246511Smonthadar * After transmitting frames to all known valid mesh gates, this route 1061246511Smonthadar * will be marked invalid, and a new path discovery will happen in the hopes 1062246511Smonthadar * that (at least) one of the mesh gates have a new proxy entry for us to use. 1063246510Smonthadar */ 1064246510Smonthadarvoid 1065246510Smonthadarieee80211_mesh_forward_to_gates(struct ieee80211vap *vap, 1066246510Smonthadar struct ieee80211_mesh_route *rt_dest) 1067246510Smonthadar{ 1068246510Smonthadar struct ieee80211com *ic = vap->iv_ic; 1069246510Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1070246510Smonthadar struct ieee80211_mesh_route *rt_gate; 1071246510Smonthadar struct ieee80211_mesh_gate_route *gr = NULL, *gr_next; 1072246511Smonthadar struct mbuf *m, *mcopy, *next; 1073246510Smonthadar 1074248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1075248069Sadrian 1076246510Smonthadar KASSERT( rt_dest->rt_flags == IEEE80211_MESHRT_FLAGS_DISCOVER, 1077246510Smonthadar ("Route is not marked with IEEE80211_MESHRT_FLAGS_DISCOVER")); 1078246510Smonthadar 1079246510Smonthadar /* XXX: send to more than one valid mash gate */ 1080246510Smonthadar MESH_RT_LOCK(ms); 1081246511Smonthadar 1082246511Smonthadar m = ieee80211_ageq_remove(&ic->ic_stageq, 1083246511Smonthadar (struct ieee80211_node *)(uintptr_t) 1084246511Smonthadar ieee80211_mac_hash(ic, rt_dest->rt_dest)); 1085246511Smonthadar 1086246510Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, gr_next) { 1087246510Smonthadar rt_gate = gr->gr_route; 1088246510Smonthadar if (rt_gate == NULL) { 1089246510Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_HWMP, 1090246510Smonthadar rt_dest->rt_dest, 1091246510Smonthadar "mesh gate with no path %6D", 1092246510Smonthadar gr->gr_addr, ":"); 1093246510Smonthadar continue; 1094246510Smonthadar } 1095246511Smonthadar if ((rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) == 0) 1096246511Smonthadar continue; 1097246511Smonthadar KASSERT(rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_GATE, 1098246511Smonthadar ("route not marked as a mesh gate")); 1099246511Smonthadar KASSERT((rt_gate->rt_flags & 1100246511Smonthadar IEEE80211_MESHRT_FLAGS_PROXY) == 0, 1101246511Smonthadar ("found mesh gate that is also marked porxy")); 1102246511Smonthadar /* 1103246511Smonthadar * convert route to a proxy route gated by the current 1104246511Smonthadar * mesh gate, this is needed so encap can built data 1105246511Smonthadar * frame with correct address. 1106246511Smonthadar */ 1107246510Smonthadar rt_dest->rt_flags = IEEE80211_MESHRT_FLAGS_PROXY | 1108246510Smonthadar IEEE80211_MESHRT_FLAGS_VALID; 1109246510Smonthadar rt_dest->rt_ext_seq = 1; /* random value */ 1110246510Smonthadar IEEE80211_ADDR_COPY(rt_dest->rt_mesh_gate, rt_gate->rt_dest); 1111246510Smonthadar IEEE80211_ADDR_COPY(rt_dest->rt_nexthop, rt_gate->rt_nexthop); 1112246510Smonthadar rt_dest->rt_metric = rt_gate->rt_metric; 1113246510Smonthadar rt_dest->rt_nhops = rt_gate->rt_nhops; 1114246510Smonthadar ieee80211_mesh_rt_update(rt_dest, ms->ms_ppath->mpp_inact); 1115246510Smonthadar MESH_RT_UNLOCK(ms); 1116246511Smonthadar /* XXX: lock?? */ 1117246511Smonthadar mcopy = m_dup(m, M_NOWAIT); 1118246511Smonthadar for (; mcopy != NULL; mcopy = next) { 1119246511Smonthadar next = mcopy->m_nextpkt; 1120246511Smonthadar mcopy->m_nextpkt = NULL; 1121246511Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_HWMP, 1122246511Smonthadar rt_dest->rt_dest, 1123246511Smonthadar "flush queued frame %p len %d", mcopy, 1124246511Smonthadar mcopy->m_pkthdr.len); 1125246511Smonthadar mesh_transmit_to_gate(vap, mcopy, rt_gate); 1126246510Smonthadar } 1127246510Smonthadar MESH_RT_LOCK(ms); 1128246510Smonthadar } 1129246511Smonthadar rt_dest->rt_flags = 0; /* Mark invalid */ 1130246511Smonthadar m_freem(m); 1131246510Smonthadar MESH_RT_UNLOCK(ms); 1132246510Smonthadar} 1133246510Smonthadar 1134246510Smonthadar/* 1135195618Srpaulo * Forward the specified frame. 1136195618Srpaulo * Decrement the TTL and set TA to our MAC address. 1137195618Srpaulo */ 1138195618Srpaulostatic void 1139195618Srpaulomesh_forward(struct ieee80211vap *vap, struct mbuf *m, 1140195618Srpaulo const struct ieee80211_meshcntl *mc) 1141195618Srpaulo{ 1142195618Srpaulo struct ieee80211com *ic = vap->iv_ic; 1143195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 1144195618Srpaulo struct ifnet *ifp = vap->iv_ifp; 1145195618Srpaulo const struct ieee80211_frame *wh = 1146195618Srpaulo mtod(m, const struct ieee80211_frame *); 1147195618Srpaulo struct mbuf *mcopy; 1148195618Srpaulo struct ieee80211_meshcntl *mccopy; 1149195618Srpaulo struct ieee80211_frame *whcopy; 1150195618Srpaulo struct ieee80211_node *ni; 1151195618Srpaulo int err; 1152195618Srpaulo 1153248069Sadrian /* This is called from the RX path - don't hold this lock */ 1154248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1155248069Sadrian 1156234878Smonthadar /* 1157298995Spfg * mesh ttl of 1 means we are the last one receiving it, 1158234878Smonthadar * according to amendment we decrement and then check if 1159234878Smonthadar * 0, if so we dont forward. 1160234878Smonthadar */ 1161234878Smonthadar if (mc->mc_ttl < 1) { 1162195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1163234878Smonthadar "%s", "frame not fwd'd, ttl 1"); 1164195618Srpaulo vap->iv_stats.is_mesh_fwd_ttl++; 1165195618Srpaulo return; 1166195618Srpaulo } 1167195618Srpaulo if (!(ms->ms_flags & IEEE80211_MESHFLAGS_FWD)) { 1168195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1169195618Srpaulo "%s", "frame not fwd'd, fwding disabled"); 1170195618Srpaulo vap->iv_stats.is_mesh_fwd_disabled++; 1171195618Srpaulo return; 1172195618Srpaulo } 1173243882Sglebius mcopy = m_dup(m, M_NOWAIT); 1174195618Srpaulo if (mcopy == NULL) { 1175195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1176195618Srpaulo "%s", "frame not fwd'd, cannot dup"); 1177195618Srpaulo vap->iv_stats.is_mesh_fwd_nobuf++; 1178271861Sglebius if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1179195618Srpaulo return; 1180195618Srpaulo } 1181195618Srpaulo mcopy = m_pullup(mcopy, ieee80211_hdrspace(ic, wh) + 1182195618Srpaulo sizeof(struct ieee80211_meshcntl)); 1183195618Srpaulo if (mcopy == NULL) { 1184195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1185195618Srpaulo "%s", "frame not fwd'd, too short"); 1186195618Srpaulo vap->iv_stats.is_mesh_fwd_tooshort++; 1187271861Sglebius if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1188195618Srpaulo m_freem(mcopy); 1189195618Srpaulo return; 1190195618Srpaulo } 1191195618Srpaulo whcopy = mtod(mcopy, struct ieee80211_frame *); 1192195618Srpaulo mccopy = (struct ieee80211_meshcntl *) 1193195618Srpaulo (mtod(mcopy, uint8_t *) + ieee80211_hdrspace(ic, wh)); 1194195618Srpaulo /* XXX clear other bits? */ 1195195618Srpaulo whcopy->i_fc[1] &= ~IEEE80211_FC1_RETRY; 1196195618Srpaulo IEEE80211_ADDR_COPY(whcopy->i_addr2, vap->iv_myaddr); 1197195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1198195618Srpaulo ni = ieee80211_ref_node(vap->iv_bss); 1199195618Srpaulo mcopy->m_flags |= M_MCAST; 1200195618Srpaulo } else { 1201246512Smonthadar ni = ieee80211_mesh_find_txnode(vap, whcopy->i_addr3); 1202195618Srpaulo if (ni == NULL) { 1203234878Smonthadar /* 1204234878Smonthadar * [Optional] any of the following three actions: 1205234878Smonthadar * o silently discard 1206234878Smonthadar * o trigger a path discovery 1207234890Smonthadar * o inform TA that meshDA is unknown. 1208234878Smonthadar */ 1209195618Srpaulo IEEE80211_NOTE_FRAME(vap, IEEE80211_MSG_MESH, wh, 1210195618Srpaulo "%s", "frame not fwd'd, no path"); 1211234890Smonthadar ms->ms_ppath->mpp_senderror(vap, whcopy->i_addr3, NULL, 1212234890Smonthadar IEEE80211_REASON_MESH_PERR_NO_FI); 1213195618Srpaulo vap->iv_stats.is_mesh_fwd_nopath++; 1214195618Srpaulo m_freem(mcopy); 1215195618Srpaulo return; 1216195618Srpaulo } 1217195618Srpaulo IEEE80211_ADDR_COPY(whcopy->i_addr1, ni->ni_macaddr); 1218195618Srpaulo } 1219195618Srpaulo KASSERT(mccopy->mc_ttl > 0, ("%s called with wrong ttl", __func__)); 1220195618Srpaulo mccopy->mc_ttl--; 1221195618Srpaulo 1222195618Srpaulo /* XXX calculate priority so drivers can find the tx queue */ 1223195618Srpaulo M_WME_SETAC(mcopy, WME_AC_BE); 1224195618Srpaulo 1225195618Srpaulo /* XXX do we know m_nextpkt is NULL? */ 1226195618Srpaulo mcopy->m_pkthdr.rcvif = (void *) ni; 1227248069Sadrian 1228248069Sadrian /* 1229248069Sadrian * XXX this bypasses all of the VAP TX handling; it passes frames 1230248069Sadrian * directly to the parent interface. 1231248069Sadrian * 1232248069Sadrian * Because of this, there's no TX lock being held as there's no 1233248069Sadrian * encaps state being used. 1234248069Sadrian * 1235248069Sadrian * Doing a direct parent transmit may not be the correct thing 1236248069Sadrian * to do here; we'll have to re-think this soon. 1237248069Sadrian */ 1238248069Sadrian IEEE80211_TX_LOCK(ic); 1239254082Sadrian err = ieee80211_parent_xmitpkt(ic, mcopy); 1240248069Sadrian IEEE80211_TX_UNLOCK(ic); 1241289164Sadrian if (!err) 1242271861Sglebius if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1243195618Srpaulo} 1244195618Srpaulo 1245195784Srpaulostatic struct mbuf * 1246195784Srpaulomesh_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen, int meshdrlen) 1247195784Srpaulo{ 1248234878Smonthadar#define WHDIR(wh) ((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) 1249234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1250195784Srpaulo uint8_t b[sizeof(struct ieee80211_qosframe_addr4) + 1251234878Smonthadar sizeof(struct ieee80211_meshcntl_ae10)]; 1252195784Srpaulo const struct ieee80211_qosframe_addr4 *wh; 1253195784Srpaulo const struct ieee80211_meshcntl_ae10 *mc; 1254195784Srpaulo struct ether_header *eh; 1255195784Srpaulo struct llc *llc; 1256195784Srpaulo int ae; 1257195784Srpaulo 1258195784Srpaulo if (m->m_len < hdrlen + sizeof(*llc) && 1259195784Srpaulo (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) { 1260195784Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_ANY, 1261195784Srpaulo "discard data frame: %s", "m_pullup failed"); 1262195784Srpaulo vap->iv_stats.is_rx_tooshort++; 1263195784Srpaulo return NULL; 1264195784Srpaulo } 1265195784Srpaulo memcpy(b, mtod(m, caddr_t), hdrlen); 1266195784Srpaulo wh = (const struct ieee80211_qosframe_addr4 *)&b[0]; 1267195784Srpaulo mc = (const struct ieee80211_meshcntl_ae10 *)&b[hdrlen - meshdrlen]; 1268195784Srpaulo KASSERT(WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS || 1269195784Srpaulo WHDIR(wh) == IEEE80211_FC1_DIR_DSTODS, 1270195784Srpaulo ("bogus dir, fc 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1])); 1271195784Srpaulo 1272195784Srpaulo llc = (struct llc *)(mtod(m, caddr_t) + hdrlen); 1273195784Srpaulo if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP && 1274195784Srpaulo llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 && 1275195784Srpaulo llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 && 1276195784Srpaulo /* NB: preserve AppleTalk frames that have a native SNAP hdr */ 1277195784Srpaulo !(llc->llc_snap.ether_type == htons(ETHERTYPE_AARP) || 1278195784Srpaulo llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) { 1279195784Srpaulo m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh)); 1280195784Srpaulo llc = NULL; 1281195784Srpaulo } else { 1282195784Srpaulo m_adj(m, hdrlen - sizeof(*eh)); 1283195784Srpaulo } 1284195784Srpaulo eh = mtod(m, struct ether_header *); 1285234878Smonthadar ae = mc->mc_flags & IEEE80211_MESH_AE_MASK; 1286195784Srpaulo if (WHDIR(wh) == IEEE80211_FC1_DIR_FROMDS) { 1287195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr1); 1288234878Smonthadar if (ae == IEEE80211_MESH_AE_00) { 1289195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr3); 1290234878Smonthadar } else if (ae == IEEE80211_MESH_AE_01) { 1291234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_shost, 1292234878Smonthadar MC01(mc)->mc_addr4); 1293195784Srpaulo } else { 1294195784Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1295195784Srpaulo (const struct ieee80211_frame *)wh, NULL, 1296195784Srpaulo "bad AE %d", ae); 1297195784Srpaulo vap->iv_stats.is_mesh_badae++; 1298195784Srpaulo m_freem(m); 1299195784Srpaulo return NULL; 1300195784Srpaulo } 1301195784Srpaulo } else { 1302234878Smonthadar if (ae == IEEE80211_MESH_AE_00) { 1303195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_dhost, wh->i_addr3); 1304195784Srpaulo IEEE80211_ADDR_COPY(eh->ether_shost, wh->i_addr4); 1305234878Smonthadar } else if (ae == IEEE80211_MESH_AE_10) { 1306234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_dhost, mc->mc_addr5); 1307234878Smonthadar IEEE80211_ADDR_COPY(eh->ether_shost, mc->mc_addr6); 1308195784Srpaulo } else { 1309195784Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1310195784Srpaulo (const struct ieee80211_frame *)wh, NULL, 1311195784Srpaulo "bad AE %d", ae); 1312195784Srpaulo vap->iv_stats.is_mesh_badae++; 1313195784Srpaulo m_freem(m); 1314195784Srpaulo return NULL; 1315195784Srpaulo } 1316195784Srpaulo } 1317246710Sglebius#ifndef __NO_STRICT_ALIGNMENT 1318195784Srpaulo if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) { 1319195784Srpaulo m = ieee80211_realign(vap, m, sizeof(*eh)); 1320195784Srpaulo if (m == NULL) 1321195784Srpaulo return NULL; 1322195784Srpaulo } 1323246710Sglebius#endif /* !__NO_STRICT_ALIGNMENT */ 1324195784Srpaulo if (llc != NULL) { 1325195784Srpaulo eh = mtod(m, struct ether_header *); 1326195784Srpaulo eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh)); 1327195784Srpaulo } 1328195784Srpaulo return m; 1329234878Smonthadar#undef WDIR 1330234878Smonthadar#undef MC01 1331195784Srpaulo} 1332195784Srpaulo 1333195784Srpaulo/* 1334195784Srpaulo * Return non-zero if the unicast mesh data frame should be processed 1335195784Srpaulo * locally. Frames that are not proxy'd have our address, otherwise 1336195784Srpaulo * we need to consult the routing table to look for a proxy entry. 1337195784Srpaulo */ 1338195784Srpaulostatic __inline int 1339195784Srpaulomesh_isucastforme(struct ieee80211vap *vap, const struct ieee80211_frame *wh, 1340195784Srpaulo const struct ieee80211_meshcntl *mc) 1341195784Srpaulo{ 1342195784Srpaulo int ae = mc->mc_flags & 3; 1343195784Srpaulo 1344195784Srpaulo KASSERT((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS, 1345195784Srpaulo ("bad dir 0x%x:0x%x", wh->i_fc[0], wh->i_fc[1])); 1346234878Smonthadar KASSERT(ae == IEEE80211_MESH_AE_00 || ae == IEEE80211_MESH_AE_10, 1347234878Smonthadar ("bad AE %d", ae)); 1348234878Smonthadar if (ae == IEEE80211_MESH_AE_10) { /* ucast w/ proxy */ 1349195784Srpaulo const struct ieee80211_meshcntl_ae10 *mc10 = 1350195784Srpaulo (const struct ieee80211_meshcntl_ae10 *) mc; 1351195784Srpaulo struct ieee80211_mesh_route *rt = 1352234878Smonthadar ieee80211_mesh_rt_find(vap, mc10->mc_addr5); 1353195784Srpaulo /* check for proxy route to ourself */ 1354195784Srpaulo return (rt != NULL && 1355195784Srpaulo (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY)); 1356195784Srpaulo } else /* ucast w/o proxy */ 1357195784Srpaulo return IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_myaddr); 1358195784Srpaulo} 1359195784Srpaulo 1360234878Smonthadar/* 1361234878Smonthadar * Verifies transmitter, updates lifetime, precursor list and forwards data. 1362234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1363234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1364234878Smonthadar * < 0 means there was an error and data should be discarded 1365234878Smonthadar */ 1366195618Srpaulostatic int 1367234878Smonthadarmesh_recv_indiv_data_to_fwrd(struct ieee80211vap *vap, struct mbuf *m, 1368234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1369234878Smonthadar{ 1370234879Smonthadar struct ieee80211_qosframe_addr4 *qwh; 1371234879Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1372234879Smonthadar struct ieee80211_mesh_route *rt_meshda, *rt_meshsa; 1373234878Smonthadar 1374248069Sadrian /* This is called from the RX path - don't hold this lock */ 1375248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1376248069Sadrian 1377234879Smonthadar qwh = (struct ieee80211_qosframe_addr4 *)wh; 1378234879Smonthadar 1379234878Smonthadar /* 1380234878Smonthadar * TODO: 1381234878Smonthadar * o verify addr2 is a legitimate transmitter 1382234878Smonthadar * o lifetime of precursor of addr3 (addr2) is max(init, curr) 1383234878Smonthadar * o lifetime of precursor of addr4 (nexthop) is max(init, curr) 1384234878Smonthadar */ 1385234878Smonthadar 1386234879Smonthadar /* set lifetime of addr3 (meshDA) to initial value */ 1387234879Smonthadar rt_meshda = ieee80211_mesh_rt_find(vap, qwh->i_addr3); 1388234880Smonthadar if (rt_meshda == NULL) { 1389234880Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, qwh->i_addr2, 1390234880Smonthadar "no route to meshDA(%6D)", qwh->i_addr3, ":"); 1391234880Smonthadar /* 1392234880Smonthadar * [Optional] any of the following three actions: 1393234880Smonthadar * o silently discard [X] 1394234880Smonthadar * o trigger a path discovery [ ] 1395234880Smonthadar * o inform TA that meshDA is unknown. [ ] 1396234880Smonthadar */ 1397234880Smonthadar /* XXX: stats */ 1398234880Smonthadar return (-1); 1399234880Smonthadar } 1400234880Smonthadar 1401234879Smonthadar ieee80211_mesh_rt_update(rt_meshda, ticks_to_msecs( 1402234879Smonthadar ms->ms_ppath->mpp_inact)); 1403234879Smonthadar 1404234879Smonthadar /* set lifetime of addr4 (meshSA) to initial value */ 1405234879Smonthadar rt_meshsa = ieee80211_mesh_rt_find(vap, qwh->i_addr4); 1406234879Smonthadar KASSERT(rt_meshsa != NULL, ("no route")); 1407234879Smonthadar ieee80211_mesh_rt_update(rt_meshsa, ticks_to_msecs( 1408234879Smonthadar ms->ms_ppath->mpp_inact)); 1409234879Smonthadar 1410234878Smonthadar mesh_forward(vap, m, mc); 1411234878Smonthadar return (1); /* dont process locally */ 1412234878Smonthadar} 1413234878Smonthadar 1414234878Smonthadar/* 1415234878Smonthadar * Verifies transmitter, updates lifetime, precursor list and process data 1416240521Seadler * locally, if data is proxy with AE = 10 it could mean data should go 1417234878Smonthadar * on another mesh path or data should be forwarded to the DS. 1418234878Smonthadar * 1419234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1420234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1421234878Smonthadar * < 0 means there was an error and data should be discarded 1422234878Smonthadar */ 1423234878Smonthadarstatic int 1424234878Smonthadarmesh_recv_indiv_data_to_me(struct ieee80211vap *vap, struct mbuf *m, 1425234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1426234878Smonthadar{ 1427234878Smonthadar struct ieee80211_qosframe_addr4 *qwh; 1428234878Smonthadar const struct ieee80211_meshcntl_ae10 *mc10; 1429234879Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1430234878Smonthadar struct ieee80211_mesh_route *rt; 1431234878Smonthadar int ae; 1432234878Smonthadar 1433248069Sadrian /* This is called from the RX path - don't hold this lock */ 1434248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1435248069Sadrian 1436234878Smonthadar qwh = (struct ieee80211_qosframe_addr4 *)wh; 1437234878Smonthadar mc10 = (const struct ieee80211_meshcntl_ae10 *)mc; 1438234878Smonthadar 1439234878Smonthadar /* 1440234878Smonthadar * TODO: 1441234878Smonthadar * o verify addr2 is a legitimate transmitter 1442234878Smonthadar * o lifetime of precursor entry is max(init, curr) 1443234878Smonthadar */ 1444234878Smonthadar 1445234879Smonthadar /* set lifetime of addr4 (meshSA) to initial value */ 1446234879Smonthadar rt = ieee80211_mesh_rt_find(vap, qwh->i_addr4); 1447234879Smonthadar KASSERT(rt != NULL, ("no route")); 1448234879Smonthadar ieee80211_mesh_rt_update(rt, ticks_to_msecs(ms->ms_ppath->mpp_inact)); 1449234879Smonthadar rt = NULL; 1450234879Smonthadar 1451234878Smonthadar ae = mc10->mc_flags & IEEE80211_MESH_AE_MASK; 1452234878Smonthadar KASSERT(ae == IEEE80211_MESH_AE_00 || 1453234878Smonthadar ae == IEEE80211_MESH_AE_10, ("bad AE %d", ae)); 1454234878Smonthadar if (ae == IEEE80211_MESH_AE_10) { 1455234878Smonthadar if (IEEE80211_ADDR_EQ(mc10->mc_addr5, qwh->i_addr3)) { 1456234878Smonthadar return (0); /* process locally */ 1457234878Smonthadar } 1458234878Smonthadar 1459234878Smonthadar rt = ieee80211_mesh_rt_find(vap, mc10->mc_addr5); 1460234878Smonthadar if (rt != NULL && 1461234878Smonthadar (rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) && 1462234878Smonthadar (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) == 0) { 1463234878Smonthadar /* 1464234878Smonthadar * Forward on another mesh-path, according to 1465234878Smonthadar * amendment as specified in 9.32.4.1 1466234878Smonthadar */ 1467234878Smonthadar IEEE80211_ADDR_COPY(qwh->i_addr3, mc10->mc_addr5); 1468234878Smonthadar mesh_forward(vap, m, 1469234878Smonthadar (const struct ieee80211_meshcntl *)mc10); 1470234878Smonthadar return (1); /* dont process locally */ 1471234878Smonthadar } 1472234878Smonthadar /* 1473234878Smonthadar * All other cases: forward of MSDUs from the MBSS to DS indiv. 1474234878Smonthadar * addressed according to 13.11.3.2. 1475234878Smonthadar */ 1476246499Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_OUTPUT, qwh->i_addr2, 1477246499Smonthadar "forward frame to DS, SA(%6D) DA(%6D)", 1478246499Smonthadar mc10->mc_addr6, ":", mc10->mc_addr5, ":"); 1479234878Smonthadar } 1480234878Smonthadar return (0); /* process locally */ 1481234878Smonthadar} 1482234878Smonthadar 1483234878Smonthadar/* 1484234878Smonthadar * Try to forward the group addressed data on to other mesh STAs, and 1485234878Smonthadar * also to the DS. 1486234878Smonthadar * 1487234878Smonthadar * > 0 means we have forwarded data and no need to process locally 1488234878Smonthadar * == 0 means we want to process locally (and we may have forwarded data 1489234878Smonthadar * < 0 means there was an error and data should be discarded 1490234878Smonthadar */ 1491234878Smonthadarstatic int 1492234878Smonthadarmesh_recv_group_data(struct ieee80211vap *vap, struct mbuf *m, 1493234878Smonthadar struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc) 1494234878Smonthadar{ 1495234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1496234878Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 1497234878Smonthadar 1498248069Sadrian /* This is called from the RX path - don't hold this lock */ 1499248089Sadrian IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic); 1500248069Sadrian 1501234878Smonthadar mesh_forward(vap, m, mc); 1502234878Smonthadar 1503234878Smonthadar if(mc->mc_ttl > 0) { 1504234878Smonthadar if (mc->mc_flags & IEEE80211_MESH_AE_01) { 1505234878Smonthadar /* 1506234878Smonthadar * Forward of MSDUs from the MBSS to DS group addressed 1507234878Smonthadar * (according to 13.11.3.2) 1508234878Smonthadar * This happens by delivering the packet, and a bridge 1509234878Smonthadar * will sent it on another port member. 1510234878Smonthadar */ 1511234892Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_GATE && 1512300232Savos ms->ms_flags & IEEE80211_MESHFLAGS_FWD) { 1513234878Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, 1514234878Smonthadar MC01(mc)->mc_addr4, "%s", 1515234878Smonthadar "forward from MBSS to the DS"); 1516300232Savos } 1517234878Smonthadar } 1518234878Smonthadar } 1519234878Smonthadar return (0); /* process locally */ 1520234878Smonthadar#undef MC01 1521234878Smonthadar} 1522234878Smonthadar 1523234878Smonthadarstatic int 1524283535Sadrianmesh_input(struct ieee80211_node *ni, struct mbuf *m, 1525283535Sadrian const struct ieee80211_rx_stats *rxs, int rssi, int nf) 1526195618Srpaulo{ 1527195618Srpaulo#define HAS_SEQ(type) ((type & 0x4) == 0) 1528234878Smonthadar#define MC01(mc) ((const struct ieee80211_meshcntl_ae01 *)mc) 1529195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 1530195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 1531195618Srpaulo struct ifnet *ifp = vap->iv_ifp; 1532195618Srpaulo struct ieee80211_frame *wh; 1533195618Srpaulo const struct ieee80211_meshcntl *mc; 1534234878Smonthadar int hdrspace, meshdrlen, need_tap, error; 1535234878Smonthadar uint8_t dir, type, subtype, ae; 1536195618Srpaulo uint32_t seq; 1537234878Smonthadar const uint8_t *addr; 1538234878Smonthadar uint8_t qos[2]; 1539195618Srpaulo 1540195618Srpaulo KASSERT(ni != NULL, ("null node")); 1541195618Srpaulo ni->ni_inact = ni->ni_inact_reload; 1542195618Srpaulo 1543195618Srpaulo need_tap = 1; /* mbuf need to be tapped. */ 1544195618Srpaulo type = -1; /* undefined */ 1545195618Srpaulo 1546248069Sadrian /* This is called from the RX path - don't hold this lock */ 1547248069Sadrian IEEE80211_TX_UNLOCK_ASSERT(ic); 1548248069Sadrian 1549195618Srpaulo if (m->m_pkthdr.len < sizeof(struct ieee80211_frame_min)) { 1550195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1551195618Srpaulo ni->ni_macaddr, NULL, 1552195618Srpaulo "too short (1): len %u", m->m_pkthdr.len); 1553195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1554195618Srpaulo goto out; 1555195618Srpaulo } 1556195618Srpaulo /* 1557195618Srpaulo * Bit of a cheat here, we use a pointer for a 3-address 1558195618Srpaulo * frame format but don't reference fields past outside 1559195618Srpaulo * ieee80211_frame_min w/o first validating the data is 1560195618Srpaulo * present. 1561195618Srpaulo */ 1562195618Srpaulo wh = mtod(m, struct ieee80211_frame *); 1563195618Srpaulo 1564195618Srpaulo if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != 1565195618Srpaulo IEEE80211_FC0_VERSION_0) { 1566195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1567195618Srpaulo ni->ni_macaddr, NULL, "wrong version %x", wh->i_fc[0]); 1568195618Srpaulo vap->iv_stats.is_rx_badversion++; 1569195618Srpaulo goto err; 1570195618Srpaulo } 1571195618Srpaulo dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1572195618Srpaulo type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1573195618Srpaulo subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1574195618Srpaulo if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { 1575195618Srpaulo IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi); 1576195618Srpaulo ni->ni_noise = nf; 1577195618Srpaulo if (HAS_SEQ(type)) { 1578195618Srpaulo uint8_t tid = ieee80211_gettid(wh); 1579195618Srpaulo 1580195618Srpaulo if (IEEE80211_QOS_HAS_SEQ(wh) && 1581195618Srpaulo TID_TO_WME_AC(tid) >= WME_AC_VI) 1582195618Srpaulo ic->ic_wme.wme_hipri_traffic++; 1583296254Savos if (! ieee80211_check_rxseq(ni, wh, wh->i_addr1)) 1584195618Srpaulo goto out; 1585195618Srpaulo } 1586195618Srpaulo } 1587195618Srpaulo#ifdef IEEE80211_DEBUG 1588195618Srpaulo /* 1589195618Srpaulo * It's easier, but too expensive, to simulate different mesh 1590195618Srpaulo * topologies by consulting the ACL policy very early, so do this 1591195618Srpaulo * only under DEBUG. 1592195618Srpaulo * 1593195618Srpaulo * NB: this check is also done upon peering link initiation. 1594195618Srpaulo */ 1595228622Sbschmidt if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) { 1596195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL, 1597195618Srpaulo wh, NULL, "%s", "disallowed by ACL"); 1598195618Srpaulo vap->iv_stats.is_rx_acl++; 1599195618Srpaulo goto out; 1600195618Srpaulo } 1601195618Srpaulo#endif 1602195618Srpaulo switch (type) { 1603195618Srpaulo case IEEE80211_FC0_TYPE_DATA: 1604195618Srpaulo if (ni == vap->iv_bss) 1605195618Srpaulo goto out; 1606195618Srpaulo if (ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) { 1607195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 1608195618Srpaulo ni->ni_macaddr, NULL, 1609195618Srpaulo "peer link not yet established (%d)", 1610195618Srpaulo ni->ni_mlstate); 1611195618Srpaulo vap->iv_stats.is_mesh_nolink++; 1612195618Srpaulo goto out; 1613234878Smonthadar } 1614195618Srpaulo if (dir != IEEE80211_FC1_DIR_FROMDS && 1615195618Srpaulo dir != IEEE80211_FC1_DIR_DSTODS) { 1616195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1617195618Srpaulo wh, "data", "incorrect dir 0x%x", dir); 1618195618Srpaulo vap->iv_stats.is_rx_wrongdir++; 1619195618Srpaulo goto err; 1620195618Srpaulo } 1621232480Sadrian 1622232480Sadrian /* All Mesh data frames are QoS subtype */ 1623232480Sadrian if (!HAS_SEQ(type)) { 1624232480Sadrian IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1625232480Sadrian wh, "data", "incorrect subtype 0x%x", subtype); 1626232480Sadrian vap->iv_stats.is_rx_badsubtype++; 1627232480Sadrian goto err; 1628232480Sadrian } 1629232480Sadrian 1630232480Sadrian /* 1631232480Sadrian * Next up, any fragmentation. 1632232480Sadrian * XXX: we defrag before we even try to forward, 1633232480Sadrian * Mesh Control field is not present in sub-sequent 1634232480Sadrian * fragmented frames. This is in contrast to Draft 4.0. 1635232480Sadrian */ 1636232480Sadrian hdrspace = ieee80211_hdrspace(ic, wh); 1637232480Sadrian if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1638232480Sadrian m = ieee80211_defrag(ni, m, hdrspace); 1639232480Sadrian if (m == NULL) { 1640232480Sadrian /* Fragment dropped or frame not complete yet */ 1641232480Sadrian goto out; 1642232480Sadrian } 1643232480Sadrian } 1644232480Sadrian wh = mtod(m, struct ieee80211_frame *); /* NB: after defrag */ 1645232480Sadrian 1646232480Sadrian /* 1647232480Sadrian * Now we have a complete Mesh Data frame. 1648232480Sadrian */ 1649232480Sadrian 1650232480Sadrian /* 1651232480Sadrian * Only fromDStoDS data frames use 4 address qos frames 1652232480Sadrian * as specified in amendment. Otherwise addr4 is located 1653232480Sadrian * in the Mesh Control field and a 3 address qos frame 1654232480Sadrian * is used. 1655232480Sadrian */ 1656344969Savos *(uint16_t *)qos = *(uint16_t *)ieee80211_getqos(wh); 1657232480Sadrian 1658232480Sadrian /* 1659232480Sadrian * NB: The mesh STA sets the Mesh Control Present 1660232480Sadrian * subfield to 1 in the Mesh Data frame containing 1661232480Sadrian * an unfragmented MSDU, an A-MSDU, or the first 1662232480Sadrian * fragment of an MSDU. 1663232480Sadrian * After defrag it should always be present. 1664232480Sadrian */ 1665232480Sadrian if (!(qos[1] & IEEE80211_QOS_MC)) { 1666232480Sadrian IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 1667232480Sadrian ni->ni_macaddr, NULL, 1668232480Sadrian "%s", "Mesh control field not present"); 1669232480Sadrian vap->iv_stats.is_rx_elem_missing++; /* XXX: kinda */ 1670232480Sadrian goto err; 1671232480Sadrian } 1672232480Sadrian 1673195618Srpaulo /* pull up enough to get to the mesh control */ 1674195618Srpaulo if (m->m_len < hdrspace + sizeof(struct ieee80211_meshcntl) && 1675195618Srpaulo (m = m_pullup(m, hdrspace + 1676195618Srpaulo sizeof(struct ieee80211_meshcntl))) == NULL) { 1677195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1678195618Srpaulo ni->ni_macaddr, NULL, 1679195618Srpaulo "data too short: expecting %u", hdrspace); 1680195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1681195618Srpaulo goto out; /* XXX */ 1682195618Srpaulo } 1683195618Srpaulo /* 1684195618Srpaulo * Now calculate the full extent of the headers. Note 1685195784Srpaulo * mesh_decap will pull up anything we didn't get 1686195618Srpaulo * above when it strips the 802.11 headers. 1687195618Srpaulo */ 1688195618Srpaulo mc = (const struct ieee80211_meshcntl *) 1689195618Srpaulo (mtod(m, const uint8_t *) + hdrspace); 1690234878Smonthadar ae = mc->mc_flags & IEEE80211_MESH_AE_MASK; 1691195784Srpaulo meshdrlen = sizeof(struct ieee80211_meshcntl) + 1692234878Smonthadar ae * IEEE80211_ADDR_LEN; 1693195784Srpaulo hdrspace += meshdrlen; 1694234878Smonthadar 1695234878Smonthadar /* pull complete hdrspace = ieee80211_hdrspace + meshcontrol */ 1696234878Smonthadar if ((meshdrlen > sizeof(struct ieee80211_meshcntl)) && 1697234878Smonthadar (m->m_len < hdrspace) && 1698234878Smonthadar ((m = m_pullup(m, hdrspace)) == NULL)) { 1699234878Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1700234878Smonthadar ni->ni_macaddr, NULL, 1701234878Smonthadar "data too short: expecting %u", hdrspace); 1702234878Smonthadar vap->iv_stats.is_rx_tooshort++; 1703234878Smonthadar goto out; /* XXX */ 1704234878Smonthadar } 1705234878Smonthadar /* XXX: are we sure there is no reallocating after m_pullup? */ 1706234878Smonthadar 1707298359Savos seq = le32dec(mc->mc_seq); 1708195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1709195618Srpaulo addr = wh->i_addr3; 1710234878Smonthadar else if (ae == IEEE80211_MESH_AE_01) 1711234878Smonthadar addr = MC01(mc)->mc_addr4; 1712195618Srpaulo else 1713195618Srpaulo addr = ((struct ieee80211_qosframe_addr4 *)wh)->i_addr4; 1714195618Srpaulo if (IEEE80211_ADDR_EQ(vap->iv_myaddr, addr)) { 1715195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, 1716195618Srpaulo addr, "data", "%s", "not to me"); 1717195618Srpaulo vap->iv_stats.is_rx_wrongbss++; /* XXX kinda */ 1718195618Srpaulo goto out; 1719195618Srpaulo } 1720195618Srpaulo if (mesh_checkpseq(vap, addr, seq) != 0) { 1721195618Srpaulo vap->iv_stats.is_rx_dup++; 1722195618Srpaulo goto out; 1723195618Srpaulo } 1724195618Srpaulo 1725234878Smonthadar /* This code "routes" the frame to the right control path */ 1726234878Smonthadar if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1727234878Smonthadar if (IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr3)) 1728234878Smonthadar error = 1729234878Smonthadar mesh_recv_indiv_data_to_me(vap, m, wh, mc); 1730234878Smonthadar else if (IEEE80211_IS_MULTICAST(wh->i_addr3)) 1731234878Smonthadar error = mesh_recv_group_data(vap, m, wh, mc); 1732234878Smonthadar else 1733234878Smonthadar error = mesh_recv_indiv_data_to_fwrd(vap, m, 1734234878Smonthadar wh, mc); 1735234878Smonthadar } else 1736234878Smonthadar error = mesh_recv_group_data(vap, m, wh, mc); 1737234878Smonthadar if (error < 0) 1738234878Smonthadar goto err; 1739234878Smonthadar else if (error > 0) 1740234878Smonthadar goto out; 1741195618Srpaulo 1742195618Srpaulo if (ieee80211_radiotap_active_vap(vap)) 1743195618Srpaulo ieee80211_radiotap_rx(vap, m); 1744195618Srpaulo need_tap = 0; 1745195618Srpaulo 1746195618Srpaulo /* 1747195618Srpaulo * Finally, strip the 802.11 header. 1748195618Srpaulo */ 1749195784Srpaulo m = mesh_decap(vap, m, hdrspace, meshdrlen); 1750195618Srpaulo if (m == NULL) { 1751195618Srpaulo /* XXX mask bit to check for both */ 1752195618Srpaulo /* don't count Null data frames as errors */ 1753195618Srpaulo if (subtype == IEEE80211_FC0_SUBTYPE_NODATA || 1754195618Srpaulo subtype == IEEE80211_FC0_SUBTYPE_QOS_NULL) 1755195618Srpaulo goto out; 1756195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, 1757195618Srpaulo ni->ni_macaddr, "data", "%s", "decap error"); 1758195618Srpaulo vap->iv_stats.is_rx_decap++; 1759195618Srpaulo IEEE80211_NODE_STAT(ni, rx_decap); 1760195618Srpaulo goto err; 1761195618Srpaulo } 1762232480Sadrian if (qos[0] & IEEE80211_QOS_AMSDU) { 1763195618Srpaulo m = ieee80211_decap_amsdu(ni, m); 1764195618Srpaulo if (m == NULL) 1765195618Srpaulo return IEEE80211_FC0_TYPE_DATA; 1766195784Srpaulo } 1767195618Srpaulo ieee80211_deliver_data(vap, ni, m); 1768195618Srpaulo return type; 1769195618Srpaulo case IEEE80211_FC0_TYPE_MGT: 1770195618Srpaulo vap->iv_stats.is_rx_mgmt++; 1771195618Srpaulo IEEE80211_NODE_STAT(ni, rx_mgmt); 1772195618Srpaulo if (dir != IEEE80211_FC1_DIR_NODS) { 1773195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1774195618Srpaulo wh, "mgt", "incorrect dir 0x%x", dir); 1775195618Srpaulo vap->iv_stats.is_rx_wrongdir++; 1776195618Srpaulo goto err; 1777195618Srpaulo } 1778195618Srpaulo if (m->m_pkthdr.len < sizeof(struct ieee80211_frame)) { 1779195618Srpaulo IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, 1780195618Srpaulo ni->ni_macaddr, "mgt", "too short: len %u", 1781195618Srpaulo m->m_pkthdr.len); 1782195618Srpaulo vap->iv_stats.is_rx_tooshort++; 1783195618Srpaulo goto out; 1784195618Srpaulo } 1785195618Srpaulo#ifdef IEEE80211_DEBUG 1786195618Srpaulo if ((ieee80211_msg_debug(vap) && 1787195618Srpaulo (vap->iv_ic->ic_flags & IEEE80211_F_SCAN)) || 1788195618Srpaulo ieee80211_msg_dumppkts(vap)) { 1789195618Srpaulo if_printf(ifp, "received %s from %s rssi %d\n", 1790298376Savos ieee80211_mgt_subtype_name(subtype), 1791195618Srpaulo ether_sprintf(wh->i_addr2), rssi); 1792195618Srpaulo } 1793195618Srpaulo#endif 1794260444Skevlo if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1795195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1796195618Srpaulo wh, NULL, "%s", "WEP set but not permitted"); 1797195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; /* XXX */ 1798195618Srpaulo goto out; 1799195618Srpaulo } 1800283535Sadrian vap->iv_recv_mgmt(ni, m, subtype, rxs, rssi, nf); 1801195618Srpaulo goto out; 1802195618Srpaulo case IEEE80211_FC0_TYPE_CTL: 1803195618Srpaulo vap->iv_stats.is_rx_ctl++; 1804195618Srpaulo IEEE80211_NODE_STAT(ni, rx_ctrl); 1805195618Srpaulo goto out; 1806195618Srpaulo default: 1807195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 1808195618Srpaulo wh, "bad", "frame type 0x%x", type); 1809195618Srpaulo /* should not come here */ 1810195618Srpaulo break; 1811195618Srpaulo } 1812195618Srpauloerr: 1813271861Sglebius if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1814195618Srpauloout: 1815195618Srpaulo if (m != NULL) { 1816195618Srpaulo if (need_tap && ieee80211_radiotap_active_vap(vap)) 1817195618Srpaulo ieee80211_radiotap_rx(vap, m); 1818195618Srpaulo m_freem(m); 1819195618Srpaulo } 1820195618Srpaulo return type; 1821234878Smonthadar#undef HAS_SEQ 1822234878Smonthadar#undef MC01 1823195618Srpaulo} 1824195618Srpaulo 1825195618Srpaulostatic void 1826195618Srpaulomesh_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype, 1827283535Sadrian const struct ieee80211_rx_stats *rxs, int rssi, int nf) 1828195618Srpaulo{ 1829195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 1830195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 1831195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 1832283535Sadrian struct ieee80211_channel *rxchan = ic->ic_curchan; 1833195618Srpaulo struct ieee80211_frame *wh; 1834234877Smonthadar struct ieee80211_mesh_route *rt; 1835195618Srpaulo uint8_t *frm, *efrm; 1836195618Srpaulo 1837195618Srpaulo wh = mtod(m0, struct ieee80211_frame *); 1838195618Srpaulo frm = (uint8_t *)&wh[1]; 1839195618Srpaulo efrm = mtod(m0, uint8_t *) + m0->m_len; 1840195618Srpaulo switch (subtype) { 1841195618Srpaulo case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 1842195618Srpaulo case IEEE80211_FC0_SUBTYPE_BEACON: 1843195618Srpaulo { 1844195618Srpaulo struct ieee80211_scanparams scan; 1845283535Sadrian struct ieee80211_channel *c; 1846195618Srpaulo /* 1847195618Srpaulo * We process beacon/probe response 1848195618Srpaulo * frames to discover neighbors. 1849195618Srpaulo */ 1850283535Sadrian if (rxs != NULL) { 1851283535Sadrian c = ieee80211_lookup_channel_rxstatus(vap, rxs); 1852283535Sadrian if (c != NULL) 1853283535Sadrian rxchan = c; 1854283535Sadrian } 1855283535Sadrian if (ieee80211_parse_beacon(ni, m0, rxchan, &scan) != 0) 1856195618Srpaulo return; 1857195618Srpaulo /* 1858195618Srpaulo * Count frame now that we know it's to be processed. 1859195618Srpaulo */ 1860195618Srpaulo if (subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 1861195618Srpaulo vap->iv_stats.is_rx_beacon++; /* XXX remove */ 1862195618Srpaulo IEEE80211_NODE_STAT(ni, rx_beacons); 1863195618Srpaulo } else 1864195618Srpaulo IEEE80211_NODE_STAT(ni, rx_proberesp); 1865195618Srpaulo /* 1866195618Srpaulo * If scanning, just pass information to the scan module. 1867195618Srpaulo */ 1868195618Srpaulo if (ic->ic_flags & IEEE80211_F_SCAN) { 1869195618Srpaulo if (ic->ic_flags_ext & IEEE80211_FEXT_PROBECHAN) { 1870195618Srpaulo /* 1871195618Srpaulo * Actively scanning a channel marked passive; 1872195618Srpaulo * send a probe request now that we know there 1873195618Srpaulo * is 802.11 traffic present. 1874195618Srpaulo * 1875195618Srpaulo * XXX check if the beacon we recv'd gives 1876195618Srpaulo * us what we need and suppress the probe req 1877195618Srpaulo */ 1878195618Srpaulo ieee80211_probe_curchan(vap, 1); 1879195618Srpaulo ic->ic_flags_ext &= ~IEEE80211_FEXT_PROBECHAN; 1880195618Srpaulo } 1881283535Sadrian ieee80211_add_scan(vap, rxchan, &scan, wh, 1882195618Srpaulo subtype, rssi, nf); 1883195618Srpaulo return; 1884195618Srpaulo } 1885195618Srpaulo 1886195618Srpaulo /* The rest of this code assumes we are running */ 1887195618Srpaulo if (vap->iv_state != IEEE80211_S_RUN) 1888195618Srpaulo return; 1889195618Srpaulo /* 1890195618Srpaulo * Ignore non-mesh STAs. 1891195618Srpaulo */ 1892195618Srpaulo if ((scan.capinfo & 1893195618Srpaulo (IEEE80211_CAPINFO_ESS|IEEE80211_CAPINFO_IBSS)) || 1894195618Srpaulo scan.meshid == NULL || scan.meshconf == NULL) { 1895195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1896195618Srpaulo wh, "beacon", "%s", "not a mesh sta"); 1897195618Srpaulo vap->iv_stats.is_mesh_wrongmesh++; 1898195618Srpaulo return; 1899195618Srpaulo } 1900195618Srpaulo /* 1901195618Srpaulo * Ignore STAs for other mesh networks. 1902195618Srpaulo */ 1903195618Srpaulo if (memcmp(scan.meshid+2, ms->ms_id, ms->ms_idlen) != 0 || 1904195618Srpaulo mesh_verify_meshconf(vap, scan.meshconf)) { 1905195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1906195618Srpaulo wh, "beacon", "%s", "not for our mesh"); 1907195618Srpaulo vap->iv_stats.is_mesh_wrongmesh++; 1908195618Srpaulo return; 1909195618Srpaulo } 1910195618Srpaulo /* 1911195618Srpaulo * Peer only based on the current ACL policy. 1912195618Srpaulo */ 1913228622Sbschmidt if (vap->iv_acl != NULL && !vap->iv_acl->iac_check(vap, wh)) { 1914195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ACL, 1915195618Srpaulo wh, NULL, "%s", "disallowed by ACL"); 1916195618Srpaulo vap->iv_stats.is_rx_acl++; 1917195618Srpaulo return; 1918195618Srpaulo } 1919195618Srpaulo /* 1920195618Srpaulo * Do neighbor discovery. 1921195618Srpaulo */ 1922195618Srpaulo if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_macaddr)) { 1923195618Srpaulo /* 1924195618Srpaulo * Create a new entry in the neighbor table. 1925195618Srpaulo */ 1926195618Srpaulo ni = ieee80211_add_neighbor(vap, wh, &scan); 1927195618Srpaulo } 1928195618Srpaulo /* 1929195618Srpaulo * Automatically peer with discovered nodes if possible. 1930195618Srpaulo */ 1931195618Srpaulo if (ni != vap->iv_bss && 1932234877Smonthadar (ms->ms_flags & IEEE80211_MESHFLAGS_AP)) { 1933234877Smonthadar switch (ni->ni_mlstate) { 1934234877Smonthadar case IEEE80211_NODE_MESH_IDLE: 1935234877Smonthadar { 1936234877Smonthadar uint16_t args[1]; 1937195618Srpaulo 1938246497Smonthadar /* Wait for backoff callout to reset counter */ 1939246497Smonthadar if (ni->ni_mlhcnt >= ieee80211_mesh_maxholding) 1940246497Smonthadar return; 1941246497Smonthadar 1942234877Smonthadar ni->ni_mlpid = mesh_generateid(vap); 1943234877Smonthadar if (ni->ni_mlpid == 0) 1944234877Smonthadar return; 1945234877Smonthadar mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENSNT); 1946234877Smonthadar args[0] = ni->ni_mlpid; 1947234877Smonthadar ieee80211_send_action(ni, 1948234877Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 1949234877Smonthadar IEEE80211_ACTION_MESHPEERING_OPEN, args); 1950234877Smonthadar ni->ni_mlrcnt = 0; 1951234877Smonthadar mesh_peer_timeout_setup(ni); 1952234877Smonthadar break; 1953234877Smonthadar } 1954234877Smonthadar case IEEE80211_NODE_MESH_ESTABLISHED: 1955234877Smonthadar { 1956234877Smonthadar /* 1957234877Smonthadar * Valid beacon from a peer mesh STA 1958234877Smonthadar * bump TA lifetime 1959234877Smonthadar */ 1960234877Smonthadar rt = ieee80211_mesh_rt_find(vap, wh->i_addr2); 1961234877Smonthadar if(rt != NULL) { 1962234877Smonthadar ieee80211_mesh_rt_update(rt, 1963234879Smonthadar ticks_to_msecs( 1964234879Smonthadar ms->ms_ppath->mpp_inact)); 1965234877Smonthadar } 1966234877Smonthadar break; 1967234877Smonthadar } 1968234877Smonthadar default: 1969234877Smonthadar break; /* ignore */ 1970234877Smonthadar } 1971195618Srpaulo } 1972195618Srpaulo break; 1973195618Srpaulo } 1974195618Srpaulo case IEEE80211_FC0_SUBTYPE_PROBE_REQ: 1975195618Srpaulo { 1976195618Srpaulo uint8_t *ssid, *meshid, *rates, *xrates; 1977195618Srpaulo 1978195618Srpaulo if (vap->iv_state != IEEE80211_S_RUN) { 1979195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1980195618Srpaulo wh, NULL, "wrong state %s", 1981195618Srpaulo ieee80211_state_name[vap->iv_state]); 1982195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 1983195618Srpaulo return; 1984195618Srpaulo } 1985195618Srpaulo if (IEEE80211_IS_MULTICAST(wh->i_addr2)) { 1986195618Srpaulo /* frame must be directed */ 1987195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 1988195618Srpaulo wh, NULL, "%s", "not unicast"); 1989195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; /* XXX stat */ 1990195618Srpaulo return; 1991195618Srpaulo } 1992195618Srpaulo /* 1993195618Srpaulo * prreq frame format 1994195618Srpaulo * [tlv] ssid 1995195618Srpaulo * [tlv] supported rates 1996195618Srpaulo * [tlv] extended supported rates 1997195618Srpaulo * [tlv] mesh id 1998195618Srpaulo */ 1999195618Srpaulo ssid = meshid = rates = xrates = NULL; 2000195618Srpaulo while (efrm - frm > 1) { 2001195618Srpaulo IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); 2002195618Srpaulo switch (*frm) { 2003195618Srpaulo case IEEE80211_ELEMID_SSID: 2004195618Srpaulo ssid = frm; 2005195618Srpaulo break; 2006195618Srpaulo case IEEE80211_ELEMID_RATES: 2007195618Srpaulo rates = frm; 2008195618Srpaulo break; 2009195618Srpaulo case IEEE80211_ELEMID_XRATES: 2010195618Srpaulo xrates = frm; 2011195618Srpaulo break; 2012195618Srpaulo case IEEE80211_ELEMID_MESHID: 2013195618Srpaulo meshid = frm; 2014195618Srpaulo break; 2015195618Srpaulo } 2016217590Sbschmidt frm += frm[1] + 2; 2017195618Srpaulo } 2018195618Srpaulo IEEE80211_VERIFY_ELEMENT(ssid, IEEE80211_NWID_LEN, return); 2019195618Srpaulo IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE, return); 2020195618Srpaulo if (xrates != NULL) 2021195618Srpaulo IEEE80211_VERIFY_ELEMENT(xrates, 2022195618Srpaulo IEEE80211_RATE_MAXSIZE - rates[1], return); 2023203423Srpaulo if (meshid != NULL) { 2024195618Srpaulo IEEE80211_VERIFY_ELEMENT(meshid, 2025195618Srpaulo IEEE80211_MESHID_LEN, return); 2026203423Srpaulo /* NB: meshid, not ssid */ 2027203423Srpaulo IEEE80211_VERIFY_SSID(vap->iv_bss, meshid, return); 2028203423Srpaulo } 2029195618Srpaulo 2030195618Srpaulo /* XXX find a better class or define it's own */ 2031195618Srpaulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2, 2032195618Srpaulo "%s", "recv probe req"); 2033195618Srpaulo /* 2034195618Srpaulo * Some legacy 11b clients cannot hack a complete 2035195618Srpaulo * probe response frame. When the request includes 2036195618Srpaulo * only a bare-bones rate set, communicate this to 2037195618Srpaulo * the transmit side. 2038195618Srpaulo */ 2039195618Srpaulo ieee80211_send_proberesp(vap, wh->i_addr2, 0); 2040195618Srpaulo break; 2041195618Srpaulo } 2042218927Sbschmidt 2043195618Srpaulo case IEEE80211_FC0_SUBTYPE_ACTION: 2044218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ACTION_NOACK: 2045195618Srpaulo if (ni == vap->iv_bss) { 2046218958Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2047195618Srpaulo wh, NULL, "%s", "unknown node"); 2048195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2049218958Sbschmidt } else if (!IEEE80211_ADDR_EQ(vap->iv_myaddr, wh->i_addr1) && 2050195618Srpaulo !IEEE80211_IS_MULTICAST(wh->i_addr1)) { 2051218958Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2052218958Sbschmidt wh, NULL, "%s", "not for us"); 2053195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2054218958Sbschmidt } else if (vap->iv_state != IEEE80211_S_RUN) { 2055218927Sbschmidt IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2056218927Sbschmidt wh, NULL, "wrong state %s", 2057218927Sbschmidt ieee80211_state_name[vap->iv_state]); 2058218927Sbschmidt vap->iv_stats.is_rx_mgtdiscard++; 2059218958Sbschmidt } else { 2060218958Sbschmidt if (ieee80211_parse_action(ni, m0) == 0) 2061218958Sbschmidt (void)ic->ic_recv_action(ni, wh, frm, efrm); 2062218927Sbschmidt } 2063195618Srpaulo break; 2064218927Sbschmidt 2065195618Srpaulo case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: 2066218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 2067195618Srpaulo case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: 2068195618Srpaulo case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 2069295795Savos case IEEE80211_FC0_SUBTYPE_TIMING_ADV: 2070218927Sbschmidt case IEEE80211_FC0_SUBTYPE_ATIM: 2071218927Sbschmidt case IEEE80211_FC0_SUBTYPE_DISASSOC: 2072218927Sbschmidt case IEEE80211_FC0_SUBTYPE_AUTH: 2073195618Srpaulo case IEEE80211_FC0_SUBTYPE_DEAUTH: 2074195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT, 2075195618Srpaulo wh, NULL, "%s", "not handled"); 2076195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2077218927Sbschmidt break; 2078218927Sbschmidt 2079195618Srpaulo default: 2080195618Srpaulo IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY, 2081195618Srpaulo wh, "mgt", "subtype 0x%x not handled", subtype); 2082195618Srpaulo vap->iv_stats.is_rx_badsubtype++; 2083195618Srpaulo break; 2084195618Srpaulo } 2085195618Srpaulo} 2086195618Srpaulo 2087205277Srpaulostatic void 2088205277Srpaulomesh_recv_ctl(struct ieee80211_node *ni, struct mbuf *m, int subtype) 2089205277Srpaulo{ 2090205277Srpaulo 2091205277Srpaulo switch (subtype) { 2092205277Srpaulo case IEEE80211_FC0_SUBTYPE_BAR: 2093205277Srpaulo ieee80211_recv_bar(ni, m); 2094205277Srpaulo break; 2095205277Srpaulo } 2096205277Srpaulo} 2097205277Srpaulo 2098195618Srpaulo/* 2099234876Smonthadar * Parse meshpeering action ie's for MPM frames 2100195618Srpaulo */ 2101195618Srpaulostatic const struct ieee80211_meshpeer_ie * 2102195618Srpaulomesh_parse_meshpeering_action(struct ieee80211_node *ni, 2103195618Srpaulo const struct ieee80211_frame *wh, /* XXX for VERIFY_LENGTH */ 2104195618Srpaulo const uint8_t *frm, const uint8_t *efrm, 2105197413Srpaulo struct ieee80211_meshpeer_ie *mp, uint8_t subtype) 2106195618Srpaulo{ 2107195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2108195618Srpaulo const struct ieee80211_meshpeer_ie *mpie; 2109234876Smonthadar uint16_t args[3]; 2110299575Savos const uint8_t *meshid, *meshconf; 2111234876Smonthadar uint8_t sendclose = 0; /* 1 = MPM frame rejected, close will be sent */ 2112195618Srpaulo 2113299575Savos meshid = meshconf = NULL; 2114195618Srpaulo while (efrm - frm > 1) { 2115195618Srpaulo IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return NULL); 2116195618Srpaulo switch (*frm) { 2117195618Srpaulo case IEEE80211_ELEMID_MESHID: 2118195618Srpaulo meshid = frm; 2119195618Srpaulo break; 2120195618Srpaulo case IEEE80211_ELEMID_MESHCONF: 2121195618Srpaulo meshconf = frm; 2122195618Srpaulo break; 2123195618Srpaulo case IEEE80211_ELEMID_MESHPEER: 2124195618Srpaulo mpie = (const struct ieee80211_meshpeer_ie *) frm; 2125195618Srpaulo memset(mp, 0, sizeof(*mp)); 2126234876Smonthadar mp->peer_len = mpie->peer_len; 2127298359Savos mp->peer_proto = le16dec(&mpie->peer_proto); 2128298359Savos mp->peer_llinkid = le16dec(&mpie->peer_llinkid); 2129234875Smonthadar switch (subtype) { 2130234875Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 2131234875Smonthadar mp->peer_linkid = 2132298359Savos le16dec(&mpie->peer_linkid); 2133234875Smonthadar break; 2134234875Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 2135234875Smonthadar /* NB: peer link ID is optional */ 2136234875Smonthadar if (mpie->peer_len == 2137234875Smonthadar (IEEE80211_MPM_BASE_SZ + 2)) { 2138234875Smonthadar mp->peer_linkid = 0; 2139234875Smonthadar mp->peer_rcode = 2140298359Savos le16dec(&mpie->peer_linkid); 2141234875Smonthadar } else { 2142234875Smonthadar mp->peer_linkid = 2143298359Savos le16dec(&mpie->peer_linkid); 2144234875Smonthadar mp->peer_rcode = 2145298359Savos le16dec(&mpie->peer_rcode); 2146234875Smonthadar } 2147234875Smonthadar break; 2148195618Srpaulo } 2149195618Srpaulo break; 2150195618Srpaulo } 2151195618Srpaulo frm += frm[1] + 2; 2152195618Srpaulo } 2153195618Srpaulo 2154195618Srpaulo /* 2155234876Smonthadar * Verify the contents of the frame. 2156234876Smonthadar * If it fails validation, close the peer link. 2157195618Srpaulo */ 2158234876Smonthadar if (mesh_verify_meshpeer(vap, subtype, (const uint8_t *)mp)) { 2159234876Smonthadar sendclose = 1; 2160234876Smonthadar IEEE80211_DISCARD(vap, 2161234876Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2162234876Smonthadar wh, NULL, "%s", "MPM validation failed"); 2163234876Smonthadar } 2164195618Srpaulo 2165234876Smonthadar /* If meshid is not the same reject any frames type. */ 2166234876Smonthadar if (sendclose == 0 && mesh_verify_meshid(vap, meshid)) { 2167234876Smonthadar sendclose = 1; 2168234876Smonthadar IEEE80211_DISCARD(vap, 2169234876Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2170234876Smonthadar wh, NULL, "%s", "not for our mesh"); 2171234876Smonthadar if (subtype == IEEE80211_ACTION_MESHPEERING_CLOSE) { 2172234876Smonthadar /* 2173234876Smonthadar * Standard not clear about this, if we dont ignore 2174234876Smonthadar * there will be an endless loop between nodes sending 2175234876Smonthadar * CLOSE frames between each other with wrong meshid. 2176234876Smonthadar * Discard and timers will bring FSM to IDLE state. 2177234876Smonthadar */ 2178234876Smonthadar return NULL; 2179234876Smonthadar } 2180234876Smonthadar } 2181234876Smonthadar 2182234876Smonthadar /* 2183234876Smonthadar * Close frames are accepted if meshid is the same. 2184234876Smonthadar * Verify the other two types. 2185234876Smonthadar */ 2186234876Smonthadar if (sendclose == 0 && subtype != IEEE80211_ACTION_MESHPEERING_CLOSE && 2187195618Srpaulo mesh_verify_meshconf(vap, meshconf)) { 2188234876Smonthadar sendclose = 1; 2189195618Srpaulo IEEE80211_DISCARD(vap, 2190195618Srpaulo IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2191234876Smonthadar wh, NULL, "%s", "configuration missmatch"); 2192234876Smonthadar } 2193234876Smonthadar 2194234876Smonthadar if (sendclose) { 2195195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2196195618Srpaulo switch (ni->ni_mlstate) { 2197195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2198195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2199195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2200195618Srpaulo /* ignore */ 2201195618Srpaulo break; 2202195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2203195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2204195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2205195618Srpaulo args[0] = ni->ni_mlpid; 2206195618Srpaulo args[1] = ni->ni_mllid; 2207234876Smonthadar /* Reason codes for rejection */ 2208234876Smonthadar switch (subtype) { 2209234876Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 2210234876Smonthadar args[2] = IEEE80211_REASON_MESH_CPVIOLATION; 2211234876Smonthadar break; 2212234876Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 2213234876Smonthadar args[2] = IEEE80211_REASON_MESH_INCONS_PARAMS; 2214234876Smonthadar break; 2215234876Smonthadar } 2216195618Srpaulo ieee80211_send_action(ni, 2217234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2218195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2219195618Srpaulo args); 2220195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2221195618Srpaulo mesh_peer_timeout_setup(ni); 2222195618Srpaulo break; 2223195618Srpaulo } 2224195618Srpaulo return NULL; 2225195618Srpaulo } 2226234876Smonthadar 2227195618Srpaulo return (const struct ieee80211_meshpeer_ie *) mp; 2228195618Srpaulo} 2229195618Srpaulo 2230195618Srpaulostatic int 2231195618Srpaulomesh_recv_action_meshpeering_open(struct ieee80211_node *ni, 2232195618Srpaulo const struct ieee80211_frame *wh, 2233195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2234195618Srpaulo{ 2235195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2236234876Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 2237195618Srpaulo struct ieee80211_meshpeer_ie ie; 2238195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer; 2239195618Srpaulo uint16_t args[3]; 2240195618Srpaulo 2241195618Srpaulo /* +2+2 for action + code + capabilites */ 2242197413Srpaulo meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2, efrm, &ie, 2243197413Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN); 2244195618Srpaulo if (meshpeer == NULL) { 2245195618Srpaulo return 0; 2246195618Srpaulo } 2247195618Srpaulo 2248195618Srpaulo /* XXX move up */ 2249195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2250195618Srpaulo "recv PEER OPEN, lid 0x%x", meshpeer->peer_llinkid); 2251195618Srpaulo 2252195618Srpaulo switch (ni->ni_mlstate) { 2253195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2254234876Smonthadar /* Reject open request if reached our maximum neighbor count */ 2255234876Smonthadar if (ms->ms_neighbors >= IEEE80211_MESH_MAX_NEIGHBORS) { 2256234876Smonthadar args[0] = meshpeer->peer_llinkid; 2257234876Smonthadar args[1] = 0; 2258234876Smonthadar args[2] = IEEE80211_REASON_MESH_MAX_PEERS; 2259234876Smonthadar ieee80211_send_action(ni, 2260234876Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2261234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, 2262234876Smonthadar args); 2263234876Smonthadar /* stay in IDLE state */ 2264234876Smonthadar return (0); 2265234876Smonthadar } 2266234876Smonthadar /* Open frame accepted */ 2267195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV); 2268195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2269195618Srpaulo ni->ni_mlpid = mesh_generateid(vap); 2270195618Srpaulo if (ni->ni_mlpid == 0) 2271195618Srpaulo return 0; /* XXX */ 2272195618Srpaulo args[0] = ni->ni_mlpid; 2273195618Srpaulo /* Announce we're open too... */ 2274195618Srpaulo ieee80211_send_action(ni, 2275234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2276195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, args); 2277195618Srpaulo /* ...and confirm the link. */ 2278195618Srpaulo args[0] = ni->ni_mlpid; 2279195618Srpaulo args[1] = ni->ni_mllid; 2280195618Srpaulo ieee80211_send_action(ni, 2281234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2282195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2283195618Srpaulo args); 2284195618Srpaulo mesh_peer_timeout_setup(ni); 2285195618Srpaulo break; 2286195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2287195618Srpaulo /* Wrong Link ID */ 2288195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2289195618Srpaulo args[0] = ni->ni_mllid; 2290195618Srpaulo args[1] = ni->ni_mlpid; 2291195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2292195618Srpaulo ieee80211_send_action(ni, 2293234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2294195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2295195618Srpaulo args); 2296195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2297195618Srpaulo mesh_peer_timeout_setup(ni); 2298195618Srpaulo break; 2299195618Srpaulo } 2300195618Srpaulo /* Duplicate open, confirm again. */ 2301195618Srpaulo args[0] = ni->ni_mlpid; 2302195618Srpaulo args[1] = ni->ni_mllid; 2303195618Srpaulo ieee80211_send_action(ni, 2304234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2305195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2306195618Srpaulo args); 2307195618Srpaulo break; 2308195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2309195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2310195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_OPENRCV); 2311195618Srpaulo args[0] = ni->ni_mlpid; 2312195618Srpaulo args[1] = ni->ni_mllid; 2313195618Srpaulo ieee80211_send_action(ni, 2314234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2315195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2316195618Srpaulo args); 2317195618Srpaulo /* NB: don't setup/clear any timeout */ 2318195618Srpaulo break; 2319195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2320195618Srpaulo if (ni->ni_mlpid != meshpeer->peer_linkid || 2321195618Srpaulo ni->ni_mllid != meshpeer->peer_llinkid) { 2322195618Srpaulo args[0] = ni->ni_mlpid; 2323195618Srpaulo args[1] = ni->ni_mllid; 2324195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2325195618Srpaulo ieee80211_send_action(ni, 2326234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2327195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2328195618Srpaulo args); 2329195618Srpaulo mesh_linkchange(ni, 2330195618Srpaulo IEEE80211_NODE_MESH_HOLDING); 2331195618Srpaulo mesh_peer_timeout_setup(ni); 2332195618Srpaulo break; 2333195618Srpaulo } 2334195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED); 2335195618Srpaulo ni->ni_mllid = meshpeer->peer_llinkid; 2336195618Srpaulo args[0] = ni->ni_mlpid; 2337195618Srpaulo args[1] = ni->ni_mllid; 2338195618Srpaulo ieee80211_send_action(ni, 2339234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2340195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2341195618Srpaulo args); 2342195618Srpaulo mesh_peer_timeout_stop(ni); 2343195618Srpaulo break; 2344195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2345195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2346195618Srpaulo args[0] = ni->ni_mllid; 2347195618Srpaulo args[1] = ni->ni_mlpid; 2348195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2349195618Srpaulo ieee80211_send_action(ni, 2350234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2351195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2352195618Srpaulo args); 2353195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2354195618Srpaulo mesh_peer_timeout_setup(ni); 2355195618Srpaulo break; 2356195618Srpaulo } 2357195618Srpaulo args[0] = ni->ni_mlpid; 2358195618Srpaulo args[1] = ni->ni_mllid; 2359195618Srpaulo ieee80211_send_action(ni, 2360234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2361195618Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM, 2362195618Srpaulo args); 2363195618Srpaulo break; 2364195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2365195618Srpaulo args[0] = ni->ni_mlpid; 2366195618Srpaulo args[1] = meshpeer->peer_llinkid; 2367234876Smonthadar /* Standard not clear about what the reaason code should be */ 2368234876Smonthadar args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2369195618Srpaulo ieee80211_send_action(ni, 2370234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2371195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2372195618Srpaulo args); 2373195618Srpaulo break; 2374195618Srpaulo } 2375195618Srpaulo return 0; 2376195618Srpaulo} 2377195618Srpaulo 2378195618Srpaulostatic int 2379195618Srpaulomesh_recv_action_meshpeering_confirm(struct ieee80211_node *ni, 2380195618Srpaulo const struct ieee80211_frame *wh, 2381195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2382195618Srpaulo{ 2383195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2384195618Srpaulo struct ieee80211_meshpeer_ie ie; 2385195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer; 2386195618Srpaulo uint16_t args[3]; 2387195618Srpaulo 2388195618Srpaulo /* +2+2+2+2 for action + code + capabilites + status code + AID */ 2389197413Srpaulo meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2+2+2+2, efrm, &ie, 2390197413Srpaulo IEEE80211_ACTION_MESHPEERING_CONFIRM); 2391195618Srpaulo if (meshpeer == NULL) { 2392195618Srpaulo return 0; 2393195618Srpaulo } 2394195618Srpaulo 2395195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2396195618Srpaulo "recv PEER CONFIRM, local id 0x%x, peer id 0x%x", 2397195618Srpaulo meshpeer->peer_llinkid, meshpeer->peer_linkid); 2398195618Srpaulo 2399195618Srpaulo switch (ni->ni_mlstate) { 2400195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2401195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_ESTABLISHED); 2402195618Srpaulo mesh_peer_timeout_stop(ni); 2403195618Srpaulo break; 2404195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2405195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_CONFIRMRCV); 2406234876Smonthadar mesh_peer_timeout_setup(ni); 2407195618Srpaulo break; 2408195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2409195618Srpaulo args[0] = ni->ni_mlpid; 2410195618Srpaulo args[1] = meshpeer->peer_llinkid; 2411234876Smonthadar /* Standard not clear about what the reaason code should be */ 2412234876Smonthadar args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2413195618Srpaulo ieee80211_send_action(ni, 2414234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2415195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2416195618Srpaulo args); 2417195618Srpaulo break; 2418195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2419195618Srpaulo if (ni->ni_mllid != meshpeer->peer_llinkid) { 2420195618Srpaulo args[0] = ni->ni_mlpid; 2421195618Srpaulo args[1] = ni->ni_mllid; 2422195618Srpaulo args[2] = IEEE80211_REASON_PEER_LINK_CANCELED; 2423195618Srpaulo ieee80211_send_action(ni, 2424234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2425195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2426195618Srpaulo args); 2427195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2428195618Srpaulo mesh_peer_timeout_setup(ni); 2429195618Srpaulo } 2430195618Srpaulo break; 2431195618Srpaulo default: 2432195618Srpaulo IEEE80211_DISCARD(vap, 2433195618Srpaulo IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2434195618Srpaulo wh, NULL, "received confirm in invalid state %d", 2435195618Srpaulo ni->ni_mlstate); 2436195618Srpaulo vap->iv_stats.is_rx_mgtdiscard++; 2437195618Srpaulo break; 2438195618Srpaulo } 2439195618Srpaulo return 0; 2440195618Srpaulo} 2441195618Srpaulo 2442195618Srpaulostatic int 2443195618Srpaulomesh_recv_action_meshpeering_close(struct ieee80211_node *ni, 2444195618Srpaulo const struct ieee80211_frame *wh, 2445195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2446195618Srpaulo{ 2447234876Smonthadar struct ieee80211_meshpeer_ie ie; 2448234876Smonthadar const struct ieee80211_meshpeer_ie *meshpeer; 2449195618Srpaulo uint16_t args[3]; 2450195618Srpaulo 2451234876Smonthadar /* +2 for action + code */ 2452234876Smonthadar meshpeer = mesh_parse_meshpeering_action(ni, wh, frm+2, efrm, &ie, 2453234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE); 2454234876Smonthadar if (meshpeer == NULL) { 2455234876Smonthadar return 0; 2456234876Smonthadar } 2457234876Smonthadar 2458234876Smonthadar /* 2459234876Smonthadar * XXX: check reason code, for example we could receive 2460234876Smonthadar * IEEE80211_REASON_MESH_MAX_PEERS then we should not attempt 2461234876Smonthadar * to peer again. 2462234876Smonthadar */ 2463234876Smonthadar 2464195618Srpaulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2465195618Srpaulo ni, "%s", "recv PEER CLOSE"); 2466195618Srpaulo 2467195618Srpaulo switch (ni->ni_mlstate) { 2468195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2469195618Srpaulo /* ignore */ 2470195618Srpaulo break; 2471195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 2472195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 2473195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2474195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 2475195618Srpaulo args[0] = ni->ni_mlpid; 2476195618Srpaulo args[1] = ni->ni_mllid; 2477195618Srpaulo args[2] = IEEE80211_REASON_MESH_CLOSE_RCVD; 2478195618Srpaulo ieee80211_send_action(ni, 2479234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 2480195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, 2481195618Srpaulo args); 2482195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 2483195618Srpaulo mesh_peer_timeout_setup(ni); 2484195618Srpaulo break; 2485195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2486195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE); 2487234876Smonthadar mesh_peer_timeout_stop(ni); 2488195618Srpaulo break; 2489195618Srpaulo } 2490195618Srpaulo return 0; 2491195618Srpaulo} 2492195618Srpaulo 2493195618Srpaulo/* 2494195618Srpaulo * Link Metric handling. 2495195618Srpaulo */ 2496195618Srpaulostatic int 2497232479Sadrianmesh_recv_action_meshlmetric(struct ieee80211_node *ni, 2498195618Srpaulo const struct ieee80211_frame *wh, 2499195618Srpaulo const uint8_t *frm, const uint8_t *efrm) 2500195618Srpaulo{ 2501232479Sadrian const struct ieee80211_meshlmetric_ie *ie = 2502232479Sadrian (const struct ieee80211_meshlmetric_ie *) 2503232479Sadrian (frm+2); /* action + code */ 2504232479Sadrian struct ieee80211_meshlmetric_ie lm_rep; 2505232479Sadrian 2506232479Sadrian if (ie->lm_flags & IEEE80211_MESH_LMETRIC_FLAGS_REQ) { 2507232479Sadrian lm_rep.lm_flags = 0; 2508232479Sadrian lm_rep.lm_metric = mesh_airtime_calc(ni); 2509232479Sadrian ieee80211_send_action(ni, 2510232479Sadrian IEEE80211_ACTION_CAT_MESH, 2511232479Sadrian IEEE80211_ACTION_MESH_LMETRIC, 2512232479Sadrian &lm_rep); 2513232479Sadrian } 2514232479Sadrian /* XXX: else do nothing for now */ 2515195618Srpaulo return 0; 2516195618Srpaulo} 2517195618Srpaulo 2518246506Smonthadar/* 2519246520Smonthadar * Parse meshgate action ie's for GANN frames. 2520246520Smonthadar * Returns -1 if parsing fails, otherwise 0. 2521246520Smonthadar */ 2522246520Smonthadarstatic int 2523246520Smonthadarmesh_parse_meshgate_action(struct ieee80211_node *ni, 2524246520Smonthadar const struct ieee80211_frame *wh, /* XXX for VERIFY_LENGTH */ 2525246520Smonthadar struct ieee80211_meshgann_ie *ie, const uint8_t *frm, const uint8_t *efrm) 2526246520Smonthadar{ 2527246520Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2528246520Smonthadar const struct ieee80211_meshgann_ie *gannie; 2529246520Smonthadar 2530246520Smonthadar while (efrm - frm > 1) { 2531246520Smonthadar IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return -1); 2532246520Smonthadar switch (*frm) { 2533246520Smonthadar case IEEE80211_ELEMID_MESHGANN: 2534246520Smonthadar gannie = (const struct ieee80211_meshgann_ie *) frm; 2535246861Sadrian memset(ie, 0, sizeof(*ie)); 2536246520Smonthadar ie->gann_ie = gannie->gann_ie; 2537246520Smonthadar ie->gann_len = gannie->gann_len; 2538246520Smonthadar ie->gann_flags = gannie->gann_flags; 2539246520Smonthadar ie->gann_hopcount = gannie->gann_hopcount; 2540246520Smonthadar ie->gann_ttl = gannie->gann_ttl; 2541246520Smonthadar IEEE80211_ADDR_COPY(ie->gann_addr, gannie->gann_addr); 2542298359Savos ie->gann_seq = le32dec(&gannie->gann_seq); 2543298359Savos ie->gann_interval = le16dec(&gannie->gann_interval); 2544246520Smonthadar break; 2545246520Smonthadar } 2546246520Smonthadar frm += frm[1] + 2; 2547246520Smonthadar } 2548246520Smonthadar 2549246520Smonthadar return 0; 2550246520Smonthadar} 2551246520Smonthadar 2552246520Smonthadar/* 2553246506Smonthadar * Mesh Gate Announcement handling. 2554246506Smonthadar */ 2555195618Srpaulostatic int 2556246506Smonthadarmesh_recv_action_meshgate(struct ieee80211_node *ni, 2557246506Smonthadar const struct ieee80211_frame *wh, 2558246506Smonthadar const uint8_t *frm, const uint8_t *efrm) 2559195618Srpaulo{ 2560246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2561246508Smonthadar struct ieee80211_mesh_state *ms = vap->iv_mesh; 2562246508Smonthadar struct ieee80211_mesh_gate_route *gr, *next; 2563246506Smonthadar struct ieee80211_mesh_route *rt_gate; 2564246508Smonthadar struct ieee80211_meshgann_ie pgann; 2565246520Smonthadar struct ieee80211_meshgann_ie ie; 2566246508Smonthadar int found = 0; 2567246506Smonthadar 2568246520Smonthadar /* +2 for action + code */ 2569246520Smonthadar if (mesh_parse_meshgate_action(ni, wh, &ie, frm+2, efrm) != 0) { 2570246520Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 2571246520Smonthadar ni->ni_macaddr, NULL, "%s", 2572246520Smonthadar "GANN parsing failed"); 2573246520Smonthadar vap->iv_stats.is_rx_mgtdiscard++; 2574246520Smonthadar return (0); 2575246520Smonthadar } 2576246520Smonthadar 2577246520Smonthadar if (IEEE80211_ADDR_EQ(vap->iv_myaddr, ie.gann_addr)) 2578246508Smonthadar return 0; 2579246506Smonthadar 2580246508Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ni->ni_macaddr, 2581246520Smonthadar "received GANN, meshgate: %6D (seq %u)", ie.gann_addr, ":", 2582246520Smonthadar ie.gann_seq); 2583246508Smonthadar 2584246508Smonthadar if (ms == NULL) 2585246508Smonthadar return (0); 2586246508Smonthadar MESH_RT_LOCK(ms); 2587246508Smonthadar TAILQ_FOREACH_SAFE(gr, &ms->ms_known_gates, gr_next, next) { 2588246520Smonthadar if (!IEEE80211_ADDR_EQ(gr->gr_addr, ie.gann_addr)) 2589246508Smonthadar continue; 2590246520Smonthadar if (ie.gann_seq <= gr->gr_lastseq) { 2591246508Smonthadar IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH, 2592246508Smonthadar ni->ni_macaddr, NULL, 2593246508Smonthadar "GANN old seqno %u <= %u", 2594246520Smonthadar ie.gann_seq, gr->gr_lastseq); 2595246508Smonthadar MESH_RT_UNLOCK(ms); 2596246508Smonthadar return (0); 2597246508Smonthadar } 2598246508Smonthadar /* corresponding mesh gate found & GANN accepted */ 2599246508Smonthadar found = 1; 2600246508Smonthadar break; 2601246508Smonthadar 2602246508Smonthadar } 2603246508Smonthadar if (found == 0) { 2604246508Smonthadar /* this GANN is from a new mesh Gate add it to known table. */ 2605246520Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ie.gann_addr, 2606246520Smonthadar "stored new GANN information, seq %u.", ie.gann_seq); 2607283538Sadrian gr = IEEE80211_MALLOC(ALIGN(sizeof(struct ieee80211_mesh_gate_route)), 2608283538Sadrian M_80211_MESH_GT_RT, 2609283538Sadrian IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 2610246520Smonthadar IEEE80211_ADDR_COPY(gr->gr_addr, ie.gann_addr); 2611246508Smonthadar TAILQ_INSERT_TAIL(&ms->ms_known_gates, gr, gr_next); 2612246508Smonthadar } 2613246520Smonthadar gr->gr_lastseq = ie.gann_seq; 2614246508Smonthadar 2615246508Smonthadar /* check if we have a path to this gate */ 2616246508Smonthadar rt_gate = mesh_rt_find_locked(ms, gr->gr_addr); 2617246506Smonthadar if (rt_gate != NULL && 2618246508Smonthadar rt_gate->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) { 2619246508Smonthadar gr->gr_route = rt_gate; 2620246506Smonthadar rt_gate->rt_flags |= IEEE80211_MESHRT_FLAGS_GATE; 2621246508Smonthadar } 2622246506Smonthadar 2623246508Smonthadar MESH_RT_UNLOCK(ms); 2624246508Smonthadar 2625246508Smonthadar /* popagate only if decremented ttl >= 1 && forwarding is enabled */ 2626246520Smonthadar if ((ie.gann_ttl - 1) < 1 && !(ms->ms_flags & IEEE80211_MESHFLAGS_FWD)) 2627246508Smonthadar return 0; 2628322060Spfg pgann.gann_flags = ie.gann_flags; /* Reserved */ 2629246520Smonthadar pgann.gann_hopcount = ie.gann_hopcount + 1; 2630246520Smonthadar pgann.gann_ttl = ie.gann_ttl - 1; 2631246520Smonthadar IEEE80211_ADDR_COPY(pgann.gann_addr, ie.gann_addr); 2632246520Smonthadar pgann.gann_seq = ie.gann_seq; 2633246520Smonthadar pgann.gann_interval = ie.gann_interval; 2634246508Smonthadar 2635246520Smonthadar IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH, ie.gann_addr, 2636246508Smonthadar "%s", "propagate GANN"); 2637246508Smonthadar 2638246508Smonthadar ieee80211_send_action(vap->iv_bss, IEEE80211_ACTION_CAT_MESH, 2639246508Smonthadar IEEE80211_ACTION_MESH_GANN, &pgann); 2640246508Smonthadar 2641246506Smonthadar return 0; 2642246506Smonthadar} 2643246506Smonthadar 2644246506Smonthadarstatic int 2645246506Smonthadarmesh_send_action(struct ieee80211_node *ni, 2646246506Smonthadar const uint8_t sa[IEEE80211_ADDR_LEN], 2647246506Smonthadar const uint8_t da[IEEE80211_ADDR_LEN], 2648246506Smonthadar struct mbuf *m) 2649246506Smonthadar{ 2650246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2651246506Smonthadar struct ieee80211com *ic = ni->ni_ic; 2652195618Srpaulo struct ieee80211_bpf_params params; 2653248069Sadrian int ret; 2654195618Srpaulo 2655246506Smonthadar KASSERT(ni != NULL, ("null node")); 2656246506Smonthadar 2657246506Smonthadar if (vap->iv_state == IEEE80211_S_CAC) { 2658246506Smonthadar IEEE80211_NOTE(vap, IEEE80211_MSG_OUTPUT, ni, 2659246506Smonthadar "block %s frame in CAC state", "Mesh action"); 2660246506Smonthadar vap->iv_stats.is_tx_badstate++; 2661246506Smonthadar ieee80211_free_node(ni); 2662246506Smonthadar m_freem(m); 2663246506Smonthadar return EIO; /* XXX */ 2664246506Smonthadar } 2665246506Smonthadar 2666260718Sglebius M_PREPEND(m, sizeof(struct ieee80211_frame), M_NOWAIT); 2667246506Smonthadar if (m == NULL) { 2668246506Smonthadar ieee80211_free_node(ni); 2669246506Smonthadar return ENOMEM; 2670246506Smonthadar } 2671246506Smonthadar 2672248069Sadrian IEEE80211_TX_LOCK(ic); 2673246506Smonthadar ieee80211_send_setup(ni, m, 2674246506Smonthadar IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_ACTION, 2675246506Smonthadar IEEE80211_NONQOS_TID, sa, da, sa); 2676246506Smonthadar m->m_flags |= M_ENCAP; /* mark encapsulated */ 2677246506Smonthadar 2678195618Srpaulo memset(¶ms, 0, sizeof(params)); 2679195618Srpaulo params.ibp_pri = WME_AC_VO; 2680195618Srpaulo params.ibp_rate0 = ni->ni_txparms->mgmtrate; 2681246506Smonthadar if (IEEE80211_IS_MULTICAST(da)) 2682246506Smonthadar params.ibp_try0 = 1; 2683246506Smonthadar else 2684246506Smonthadar params.ibp_try0 = ni->ni_txparms->maxretry; 2685195618Srpaulo params.ibp_power = ni->ni_txpower; 2686246506Smonthadar 2687246506Smonthadar IEEE80211_NODE_STAT(ni, tx_mgmt); 2688246506Smonthadar 2689248069Sadrian ret = ieee80211_raw_output(vap, ni, m, ¶ms); 2690248069Sadrian IEEE80211_TX_UNLOCK(ic); 2691248069Sadrian return (ret); 2692195618Srpaulo} 2693195618Srpaulo 2694195618Srpaulo#define ADDSHORT(frm, v) do { \ 2695195618Srpaulo frm[0] = (v) & 0xff; \ 2696195618Srpaulo frm[1] = (v) >> 8; \ 2697195618Srpaulo frm += 2; \ 2698195618Srpaulo} while (0) 2699195618Srpaulo#define ADDWORD(frm, v) do { \ 2700195618Srpaulo frm[0] = (v) & 0xff; \ 2701195618Srpaulo frm[1] = ((v) >> 8) & 0xff; \ 2702195618Srpaulo frm[2] = ((v) >> 16) & 0xff; \ 2703195618Srpaulo frm[3] = ((v) >> 24) & 0xff; \ 2704195618Srpaulo frm += 4; \ 2705195618Srpaulo} while (0) 2706195618Srpaulo 2707195618Srpaulostatic int 2708195618Srpaulomesh_send_action_meshpeering_open(struct ieee80211_node *ni, 2709195618Srpaulo int category, int action, void *args0) 2710195618Srpaulo{ 2711195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2712195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2713195618Srpaulo uint16_t *args = args0; 2714195618Srpaulo const struct ieee80211_rateset *rs; 2715195618Srpaulo struct mbuf *m; 2716195618Srpaulo uint8_t *frm; 2717195618Srpaulo 2718195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2719195618Srpaulo "send PEER OPEN action: localid 0x%x", args[0]); 2720195618Srpaulo 2721195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2722195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2723195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2724195618Srpaulo ieee80211_ref_node(ni); 2725195618Srpaulo 2726195618Srpaulo m = ieee80211_getmgtframe(&frm, 2727195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2728195618Srpaulo sizeof(uint16_t) /* action+category */ 2729195618Srpaulo + sizeof(uint16_t) /* capabilites */ 2730230926Srpaulo + 2 + IEEE80211_RATE_SIZE 2731230926Srpaulo + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE) 2732195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2733230926Srpaulo + sizeof(struct ieee80211_meshconf_ie) 2734195618Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2735195618Srpaulo ); 2736195618Srpaulo if (m != NULL) { 2737195618Srpaulo /* 2738195618Srpaulo * mesh peer open action frame format: 2739195618Srpaulo * [1] category 2740195618Srpaulo * [1] action 2741195618Srpaulo * [2] capabilities 2742195618Srpaulo * [tlv] rates 2743195618Srpaulo * [tlv] xrates 2744195618Srpaulo * [tlv] mesh id 2745195618Srpaulo * [tlv] mesh conf 2746195618Srpaulo * [tlv] mesh peer link mgmt 2747195618Srpaulo */ 2748195618Srpaulo *frm++ = category; 2749195618Srpaulo *frm++ = action; 2750195618Srpaulo ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan)); 2751195618Srpaulo rs = ieee80211_get_suprates(ic, ic->ic_curchan); 2752195618Srpaulo frm = ieee80211_add_rates(frm, rs); 2753195618Srpaulo frm = ieee80211_add_xrates(frm, rs); 2754195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2755195618Srpaulo frm = ieee80211_add_meshconf(frm, vap); 2756234874Smonthadar frm = ieee80211_add_meshpeer(frm, IEEE80211_ACTION_MESHPEERING_OPEN, 2757195618Srpaulo args[0], 0, 0); 2758195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2759246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2760195618Srpaulo } else { 2761195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2762195618Srpaulo ieee80211_free_node(ni); 2763195618Srpaulo return ENOMEM; 2764195618Srpaulo } 2765195618Srpaulo} 2766195618Srpaulo 2767195618Srpaulostatic int 2768195618Srpaulomesh_send_action_meshpeering_confirm(struct ieee80211_node *ni, 2769195618Srpaulo int category, int action, void *args0) 2770195618Srpaulo{ 2771195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2772195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2773195618Srpaulo uint16_t *args = args0; 2774195618Srpaulo const struct ieee80211_rateset *rs; 2775195618Srpaulo struct mbuf *m; 2776195618Srpaulo uint8_t *frm; 2777195618Srpaulo 2778195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2779195618Srpaulo "send PEER CONFIRM action: localid 0x%x, peerid 0x%x", 2780195618Srpaulo args[0], args[1]); 2781195618Srpaulo 2782195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2783195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2784195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2785195618Srpaulo ieee80211_ref_node(ni); 2786195618Srpaulo 2787195618Srpaulo m = ieee80211_getmgtframe(&frm, 2788195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2789195618Srpaulo sizeof(uint16_t) /* action+category */ 2790195618Srpaulo + sizeof(uint16_t) /* capabilites */ 2791195618Srpaulo + sizeof(uint16_t) /* status code */ 2792195618Srpaulo + sizeof(uint16_t) /* AID */ 2793230926Srpaulo + 2 + IEEE80211_RATE_SIZE 2794230926Srpaulo + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE) 2795195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2796230926Srpaulo + sizeof(struct ieee80211_meshconf_ie) 2797195618Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2798195618Srpaulo ); 2799195618Srpaulo if (m != NULL) { 2800195618Srpaulo /* 2801195618Srpaulo * mesh peer confirm action frame format: 2802195618Srpaulo * [1] category 2803195618Srpaulo * [1] action 2804195618Srpaulo * [2] capabilities 2805195618Srpaulo * [2] status code 2806195618Srpaulo * [2] association id (peer ID) 2807195618Srpaulo * [tlv] rates 2808195618Srpaulo * [tlv] xrates 2809195618Srpaulo * [tlv] mesh id 2810195618Srpaulo * [tlv] mesh conf 2811195618Srpaulo * [tlv] mesh peer link mgmt 2812195618Srpaulo */ 2813195618Srpaulo *frm++ = category; 2814195618Srpaulo *frm++ = action; 2815195618Srpaulo ADDSHORT(frm, ieee80211_getcapinfo(vap, ni->ni_chan)); 2816195618Srpaulo ADDSHORT(frm, 0); /* status code */ 2817195618Srpaulo ADDSHORT(frm, args[1]); /* AID */ 2818195618Srpaulo rs = ieee80211_get_suprates(ic, ic->ic_curchan); 2819195618Srpaulo frm = ieee80211_add_rates(frm, rs); 2820195618Srpaulo frm = ieee80211_add_xrates(frm, rs); 2821195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2822195618Srpaulo frm = ieee80211_add_meshconf(frm, vap); 2823195618Srpaulo frm = ieee80211_add_meshpeer(frm, 2824234874Smonthadar IEEE80211_ACTION_MESHPEERING_CONFIRM, 2825195618Srpaulo args[0], args[1], 0); 2826195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2827246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2828195618Srpaulo } else { 2829195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2830195618Srpaulo ieee80211_free_node(ni); 2831195618Srpaulo return ENOMEM; 2832195618Srpaulo } 2833195618Srpaulo} 2834195618Srpaulo 2835195618Srpaulostatic int 2836195618Srpaulomesh_send_action_meshpeering_close(struct ieee80211_node *ni, 2837195618Srpaulo int category, int action, void *args0) 2838195618Srpaulo{ 2839195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2840195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2841195618Srpaulo uint16_t *args = args0; 2842195618Srpaulo struct mbuf *m; 2843195618Srpaulo uint8_t *frm; 2844195618Srpaulo 2845195618Srpaulo IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, ni, 2846298364Savos "send PEER CLOSE action: localid 0x%x, peerid 0x%x reason %d (%s)", 2847298364Savos args[0], args[1], args[2], ieee80211_reason_to_string(args[2])); 2848195618Srpaulo 2849195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2850195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2851195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2852195618Srpaulo ieee80211_ref_node(ni); 2853195618Srpaulo 2854195618Srpaulo m = ieee80211_getmgtframe(&frm, 2855195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2856195618Srpaulo sizeof(uint16_t) /* action+category */ 2857195618Srpaulo + sizeof(uint16_t) /* reason code */ 2858195618Srpaulo + 2 + IEEE80211_MESHID_LEN 2859230926Srpaulo + sizeof(struct ieee80211_meshpeer_ie) 2860195618Srpaulo ); 2861195618Srpaulo if (m != NULL) { 2862195618Srpaulo /* 2863195618Srpaulo * mesh peer close action frame format: 2864195618Srpaulo * [1] category 2865195618Srpaulo * [1] action 2866195618Srpaulo * [tlv] mesh id 2867195618Srpaulo * [tlv] mesh peer link mgmt 2868195618Srpaulo */ 2869195618Srpaulo *frm++ = category; 2870195618Srpaulo *frm++ = action; 2871195618Srpaulo frm = ieee80211_add_meshid(frm, vap); 2872195618Srpaulo frm = ieee80211_add_meshpeer(frm, 2873234874Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, 2874195618Srpaulo args[0], args[1], args[2]); 2875195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2876246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2877195618Srpaulo } else { 2878195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2879195618Srpaulo ieee80211_free_node(ni); 2880195618Srpaulo return ENOMEM; 2881195618Srpaulo } 2882195618Srpaulo} 2883195618Srpaulo 2884195618Srpaulostatic int 2885232479Sadrianmesh_send_action_meshlmetric(struct ieee80211_node *ni, 2886195618Srpaulo int category, int action, void *arg0) 2887195618Srpaulo{ 2888195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 2889195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 2890232479Sadrian struct ieee80211_meshlmetric_ie *ie = arg0; 2891195618Srpaulo struct mbuf *m; 2892195618Srpaulo uint8_t *frm; 2893195618Srpaulo 2894232479Sadrian if (ie->lm_flags & IEEE80211_MESH_LMETRIC_FLAGS_REQ) { 2895232479Sadrian IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2896232479Sadrian ni, "%s", "send LINK METRIC REQUEST action"); 2897195618Srpaulo } else { 2898232479Sadrian IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 2899232479Sadrian ni, "send LINK METRIC REPLY action: metric 0x%x", 2900232479Sadrian ie->lm_metric); 2901195618Srpaulo } 2902195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2903195618Srpaulo "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2904195618Srpaulo ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2905195618Srpaulo ieee80211_ref_node(ni); 2906195618Srpaulo 2907195618Srpaulo m = ieee80211_getmgtframe(&frm, 2908195618Srpaulo ic->ic_headroom + sizeof(struct ieee80211_frame), 2909232479Sadrian sizeof(uint16_t) + /* action+category */ 2910232479Sadrian sizeof(struct ieee80211_meshlmetric_ie) 2911195618Srpaulo ); 2912195618Srpaulo if (m != NULL) { 2913195618Srpaulo /* 2914232479Sadrian * mesh link metric 2915195618Srpaulo * [1] category 2916195618Srpaulo * [1] action 2917195618Srpaulo * [tlv] mesh link metric 2918195618Srpaulo */ 2919195618Srpaulo *frm++ = category; 2920195618Srpaulo *frm++ = action; 2921232479Sadrian frm = ieee80211_add_meshlmetric(frm, 2922232479Sadrian ie->lm_flags, ie->lm_metric); 2923195618Srpaulo m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2924246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, ni->ni_macaddr, m); 2925195618Srpaulo } else { 2926195618Srpaulo vap->iv_stats.is_tx_nobuf++; 2927195618Srpaulo ieee80211_free_node(ni); 2928195618Srpaulo return ENOMEM; 2929195618Srpaulo } 2930195618Srpaulo} 2931195618Srpaulo 2932246506Smonthadarstatic int 2933246506Smonthadarmesh_send_action_meshgate(struct ieee80211_node *ni, 2934246506Smonthadar int category, int action, void *arg0) 2935246506Smonthadar{ 2936246506Smonthadar struct ieee80211vap *vap = ni->ni_vap; 2937246506Smonthadar struct ieee80211com *ic = ni->ni_ic; 2938246506Smonthadar struct ieee80211_meshgann_ie *ie = arg0; 2939246506Smonthadar struct mbuf *m; 2940246506Smonthadar uint8_t *frm; 2941246506Smonthadar 2942246506Smonthadar IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 2943246506Smonthadar "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, 2944246506Smonthadar ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); 2945246506Smonthadar ieee80211_ref_node(ni); 2946246506Smonthadar 2947246506Smonthadar m = ieee80211_getmgtframe(&frm, 2948246506Smonthadar ic->ic_headroom + sizeof(struct ieee80211_frame), 2949246506Smonthadar sizeof(uint16_t) + /* action+category */ 2950246506Smonthadar IEEE80211_MESHGANN_BASE_SZ 2951246506Smonthadar ); 2952246506Smonthadar if (m != NULL) { 2953246506Smonthadar /* 2954246506Smonthadar * mesh link metric 2955246506Smonthadar * [1] category 2956246506Smonthadar * [1] action 2957246506Smonthadar * [tlv] mesh gate annoucement 2958246506Smonthadar */ 2959246506Smonthadar *frm++ = category; 2960246506Smonthadar *frm++ = action; 2961246506Smonthadar frm = ieee80211_add_meshgate(frm, ie); 2962246506Smonthadar m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); 2963246506Smonthadar return mesh_send_action(ni, vap->iv_myaddr, broadcastaddr, m); 2964246506Smonthadar } else { 2965246506Smonthadar vap->iv_stats.is_tx_nobuf++; 2966246506Smonthadar ieee80211_free_node(ni); 2967246506Smonthadar return ENOMEM; 2968246506Smonthadar } 2969246506Smonthadar} 2970246506Smonthadar 2971195618Srpaulostatic void 2972195618Srpaulomesh_peer_timeout_setup(struct ieee80211_node *ni) 2973195618Srpaulo{ 2974195618Srpaulo switch (ni->ni_mlstate) { 2975195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 2976195618Srpaulo ni->ni_mltval = ieee80211_mesh_holdingtimeout; 2977195618Srpaulo break; 2978195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 2979195618Srpaulo ni->ni_mltval = ieee80211_mesh_confirmtimeout; 2980195618Srpaulo break; 2981195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 2982195618Srpaulo ni->ni_mltval = 0; 2983195618Srpaulo break; 2984195618Srpaulo default: 2985195618Srpaulo ni->ni_mltval = ieee80211_mesh_retrytimeout; 2986195618Srpaulo break; 2987195618Srpaulo } 2988195618Srpaulo if (ni->ni_mltval) 2989195618Srpaulo callout_reset(&ni->ni_mltimer, ni->ni_mltval, 2990195618Srpaulo mesh_peer_timeout_cb, ni); 2991195618Srpaulo} 2992195618Srpaulo 2993195618Srpaulo/* 2994195618Srpaulo * Same as above but backoffs timer statisically 50%. 2995195618Srpaulo */ 2996195618Srpaulostatic void 2997195618Srpaulomesh_peer_timeout_backoff(struct ieee80211_node *ni) 2998195618Srpaulo{ 2999195618Srpaulo uint32_t r; 3000195618Srpaulo 3001195618Srpaulo r = arc4random(); 3002195618Srpaulo ni->ni_mltval += r % ni->ni_mltval; 3003195618Srpaulo callout_reset(&ni->ni_mltimer, ni->ni_mltval, mesh_peer_timeout_cb, 3004195618Srpaulo ni); 3005195618Srpaulo} 3006195618Srpaulo 3007195618Srpaulostatic __inline void 3008195618Srpaulomesh_peer_timeout_stop(struct ieee80211_node *ni) 3009195618Srpaulo{ 3010195784Srpaulo callout_drain(&ni->ni_mltimer); 3011195618Srpaulo} 3012195618Srpaulo 3013246497Smonthadarstatic void 3014246497Smonthadarmesh_peer_backoff_cb(void *arg) 3015246497Smonthadar{ 3016246497Smonthadar struct ieee80211_node *ni = (struct ieee80211_node *)arg; 3017246497Smonthadar 3018246497Smonthadar /* After backoff timeout, try to peer automatically again. */ 3019246497Smonthadar ni->ni_mlhcnt = 0; 3020246497Smonthadar} 3021246497Smonthadar 3022195618Srpaulo/* 3023195618Srpaulo * Mesh Peer Link Management FSM timeout handling. 3024195618Srpaulo */ 3025195618Srpaulostatic void 3026195618Srpaulomesh_peer_timeout_cb(void *arg) 3027195618Srpaulo{ 3028195618Srpaulo struct ieee80211_node *ni = (struct ieee80211_node *)arg; 3029195618Srpaulo uint16_t args[3]; 3030195618Srpaulo 3031195618Srpaulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_MESH, 3032195618Srpaulo ni, "mesh link timeout, state %d, retry counter %d", 3033195618Srpaulo ni->ni_mlstate, ni->ni_mlrcnt); 3034195618Srpaulo 3035195618Srpaulo switch (ni->ni_mlstate) { 3036195618Srpaulo case IEEE80211_NODE_MESH_IDLE: 3037195618Srpaulo case IEEE80211_NODE_MESH_ESTABLISHED: 3038195618Srpaulo break; 3039195618Srpaulo case IEEE80211_NODE_MESH_OPENSNT: 3040195618Srpaulo case IEEE80211_NODE_MESH_OPENRCV: 3041195618Srpaulo if (ni->ni_mlrcnt == ieee80211_mesh_maxretries) { 3042195618Srpaulo args[0] = ni->ni_mlpid; 3043195618Srpaulo args[2] = IEEE80211_REASON_MESH_MAX_RETRIES; 3044195618Srpaulo ieee80211_send_action(ni, 3045234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3046195618Srpaulo IEEE80211_ACTION_MESHPEERING_CLOSE, args); 3047195618Srpaulo ni->ni_mlrcnt = 0; 3048195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 3049195618Srpaulo mesh_peer_timeout_setup(ni); 3050195618Srpaulo } else { 3051195618Srpaulo args[0] = ni->ni_mlpid; 3052195618Srpaulo ieee80211_send_action(ni, 3053234874Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3054195618Srpaulo IEEE80211_ACTION_MESHPEERING_OPEN, args); 3055195618Srpaulo ni->ni_mlrcnt++; 3056195618Srpaulo mesh_peer_timeout_backoff(ni); 3057195618Srpaulo } 3058195618Srpaulo break; 3059195618Srpaulo case IEEE80211_NODE_MESH_CONFIRMRCV: 3060234876Smonthadar args[0] = ni->ni_mlpid; 3061234876Smonthadar args[2] = IEEE80211_REASON_MESH_CONFIRM_TIMEOUT; 3062234876Smonthadar ieee80211_send_action(ni, 3063234876Smonthadar IEEE80211_ACTION_CAT_SELF_PROT, 3064234876Smonthadar IEEE80211_ACTION_MESHPEERING_CLOSE, args); 3065234876Smonthadar mesh_linkchange(ni, IEEE80211_NODE_MESH_HOLDING); 3066234876Smonthadar mesh_peer_timeout_setup(ni); 3067195618Srpaulo break; 3068195618Srpaulo case IEEE80211_NODE_MESH_HOLDING: 3069246497Smonthadar ni->ni_mlhcnt++; 3070246497Smonthadar if (ni->ni_mlhcnt >= ieee80211_mesh_maxholding) 3071246497Smonthadar callout_reset(&ni->ni_mlhtimer, 3072246497Smonthadar ieee80211_mesh_backofftimeout, 3073246497Smonthadar mesh_peer_backoff_cb, ni); 3074195618Srpaulo mesh_linkchange(ni, IEEE80211_NODE_MESH_IDLE); 3075195618Srpaulo break; 3076195618Srpaulo } 3077195618Srpaulo} 3078195618Srpaulo 3079195661Srpaulostatic int 3080195618Srpaulomesh_verify_meshid(struct ieee80211vap *vap, const uint8_t *ie) 3081195618Srpaulo{ 3082195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3083195618Srpaulo 3084195618Srpaulo if (ie == NULL || ie[1] != ms->ms_idlen) 3085195618Srpaulo return 1; 3086195618Srpaulo return memcmp(ms->ms_id, ie + 2, ms->ms_idlen); 3087195618Srpaulo} 3088195618Srpaulo 3089195618Srpaulo/* 3090195618Srpaulo * Check if we are using the same algorithms for this mesh. 3091195618Srpaulo */ 3092195618Srpaulostatic int 3093195618Srpaulomesh_verify_meshconf(struct ieee80211vap *vap, const uint8_t *ie) 3094195618Srpaulo{ 3095195618Srpaulo const struct ieee80211_meshconf_ie *meshconf = 3096195618Srpaulo (const struct ieee80211_meshconf_ie *) ie; 3097195618Srpaulo const struct ieee80211_mesh_state *ms = vap->iv_mesh; 3098195618Srpaulo 3099195618Srpaulo if (meshconf == NULL) 3100195618Srpaulo return 1; 3101197975Srpaulo if (meshconf->conf_pselid != ms->ms_ppath->mpp_ie) { 3102195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3103197975Srpaulo "unknown path selection algorithm: 0x%x\n", 3104197975Srpaulo meshconf->conf_pselid); 3105195618Srpaulo return 1; 3106195618Srpaulo } 3107197975Srpaulo if (meshconf->conf_pmetid != ms->ms_pmetric->mpm_ie) { 3108195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3109197975Srpaulo "unknown path metric algorithm: 0x%x\n", 3110197975Srpaulo meshconf->conf_pmetid); 3111195618Srpaulo return 1; 3112195618Srpaulo } 3113197975Srpaulo if (meshconf->conf_ccid != 0) { 3114195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3115197975Srpaulo "unknown congestion control algorithm: 0x%x\n", 3116197975Srpaulo meshconf->conf_ccid); 3117195618Srpaulo return 1; 3118195618Srpaulo } 3119197975Srpaulo if (meshconf->conf_syncid != IEEE80211_MESHCONF_SYNC_NEIGHOFF) { 3120195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3121197975Srpaulo "unknown sync algorithm: 0x%x\n", 3122197975Srpaulo meshconf->conf_syncid); 3123195618Srpaulo return 1; 3124195618Srpaulo } 3125197975Srpaulo if (meshconf->conf_authid != 0) { 3126195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3127197975Srpaulo "unknown auth auth algorithm: 0x%x\n", 3128197975Srpaulo meshconf->conf_pselid); 3129195618Srpaulo return 1; 3130195618Srpaulo } 3131195618Srpaulo /* Not accepting peers */ 3132231576Sadrian if (!(meshconf->conf_cap & IEEE80211_MESHCONF_CAP_AP)) { 3133195618Srpaulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_MESH, 3134195618Srpaulo "not accepting peers: 0x%x\n", meshconf->conf_cap); 3135195618Srpaulo return 1; 3136195618Srpaulo } 3137195618Srpaulo return 0; 3138195618Srpaulo} 3139195618Srpaulo 3140195618Srpaulostatic int 3141197413Srpaulomesh_verify_meshpeer(struct ieee80211vap *vap, uint8_t subtype, 3142197413Srpaulo const uint8_t *ie) 3143195618Srpaulo{ 3144195618Srpaulo const struct ieee80211_meshpeer_ie *meshpeer = 3145195618Srpaulo (const struct ieee80211_meshpeer_ie *) ie; 3146195618Srpaulo 3147234875Smonthadar if (meshpeer == NULL || 3148234875Smonthadar meshpeer->peer_len < IEEE80211_MPM_BASE_SZ || 3149234875Smonthadar meshpeer->peer_len > IEEE80211_MPM_MAX_SZ) 3150195618Srpaulo return 1; 3151234875Smonthadar if (meshpeer->peer_proto != IEEE80211_MPPID_MPM) { 3152234875Smonthadar IEEE80211_DPRINTF(vap, 3153234875Smonthadar IEEE80211_MSG_ACTION | IEEE80211_MSG_MESH, 3154234875Smonthadar "Only MPM protocol is supported (proto: 0x%02X)", 3155234875Smonthadar meshpeer->peer_proto); 3156234875Smonthadar return 1; 3157234875Smonthadar } 3158197413Srpaulo switch (subtype) { 3159234874Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 3160234875Smonthadar if (meshpeer->peer_len != IEEE80211_MPM_BASE_SZ) 3161195618Srpaulo return 1; 3162195618Srpaulo break; 3163234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 3164234875Smonthadar if (meshpeer->peer_len != IEEE80211_MPM_BASE_SZ + 2) 3165195618Srpaulo return 1; 3166195618Srpaulo break; 3167234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 3168234875Smonthadar if (meshpeer->peer_len < IEEE80211_MPM_BASE_SZ + 2) 3169195618Srpaulo return 1; 3170234875Smonthadar if (meshpeer->peer_len == (IEEE80211_MPM_BASE_SZ + 2) && 3171234875Smonthadar meshpeer->peer_linkid != 0) 3172195618Srpaulo return 1; 3173195618Srpaulo if (meshpeer->peer_rcode == 0) 3174195618Srpaulo return 1; 3175195618Srpaulo break; 3176195618Srpaulo } 3177195618Srpaulo return 0; 3178195618Srpaulo} 3179195618Srpaulo 3180195618Srpaulo/* 3181195618Srpaulo * Add a Mesh ID IE to a frame. 3182195618Srpaulo */ 3183195618Srpaulouint8_t * 3184195618Srpauloieee80211_add_meshid(uint8_t *frm, struct ieee80211vap *vap) 3185195618Srpaulo{ 3186195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3187195618Srpaulo 3188195618Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a mbss vap")); 3189195618Srpaulo 3190195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHID; 3191195618Srpaulo *frm++ = ms->ms_idlen; 3192195618Srpaulo memcpy(frm, ms->ms_id, ms->ms_idlen); 3193195618Srpaulo return frm + ms->ms_idlen; 3194195618Srpaulo} 3195195618Srpaulo 3196195618Srpaulo/* 3197195618Srpaulo * Add a Mesh Configuration IE to a frame. 3198195618Srpaulo * For now just use HWMP routing, Airtime link metric, Null Congestion 3199195618Srpaulo * Signaling, Null Sync Protocol and Null Authentication. 3200195618Srpaulo */ 3201195618Srpaulouint8_t * 3202195618Srpauloieee80211_add_meshconf(uint8_t *frm, struct ieee80211vap *vap) 3203195618Srpaulo{ 3204195618Srpaulo const struct ieee80211_mesh_state *ms = vap->iv_mesh; 3205202178Srpaulo uint16_t caps; 3206195618Srpaulo 3207195618Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap")); 3208195618Srpaulo 3209195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHCONF; 3210231576Sadrian *frm++ = IEEE80211_MESH_CONF_SZ; 3211197975Srpaulo *frm++ = ms->ms_ppath->mpp_ie; /* path selection */ 3212197975Srpaulo *frm++ = ms->ms_pmetric->mpm_ie; /* link metric */ 3213197975Srpaulo *frm++ = IEEE80211_MESHCONF_CC_DISABLED; 3214197975Srpaulo *frm++ = IEEE80211_MESHCONF_SYNC_NEIGHOFF; 3215197975Srpaulo *frm++ = IEEE80211_MESHCONF_AUTH_DISABLED; 3216195618Srpaulo /* NB: set the number of neighbors before the rest */ 3217234876Smonthadar *frm = (ms->ms_neighbors > IEEE80211_MESH_MAX_NEIGHBORS ? 3218234876Smonthadar IEEE80211_MESH_MAX_NEIGHBORS : ms->ms_neighbors) << 1; 3219234892Smonthadar if (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) 3220234892Smonthadar *frm |= IEEE80211_MESHCONF_FORM_GATE; 3221195618Srpaulo frm += 1; 3222202178Srpaulo caps = 0; 3223195618Srpaulo if (ms->ms_flags & IEEE80211_MESHFLAGS_AP) 3224202178Srpaulo caps |= IEEE80211_MESHCONF_CAP_AP; 3225195618Srpaulo if (ms->ms_flags & IEEE80211_MESHFLAGS_FWD) 3226202178Srpaulo caps |= IEEE80211_MESHCONF_CAP_FWRD; 3227231576Sadrian *frm++ = caps; 3228195618Srpaulo return frm; 3229195618Srpaulo} 3230195618Srpaulo 3231195618Srpaulo/* 3232195618Srpaulo * Add a Mesh Peer Management IE to a frame. 3233195618Srpaulo */ 3234195618Srpaulouint8_t * 3235195618Srpauloieee80211_add_meshpeer(uint8_t *frm, uint8_t subtype, uint16_t localid, 3236195618Srpaulo uint16_t peerid, uint16_t reason) 3237195618Srpaulo{ 3238197413Srpaulo 3239195618Srpaulo KASSERT(localid != 0, ("localid == 0")); 3240195618Srpaulo 3241195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHPEER; 3242195618Srpaulo switch (subtype) { 3243234874Smonthadar case IEEE80211_ACTION_MESHPEERING_OPEN: 3244234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ; /* length */ 3245234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3246234875Smonthadar ADDSHORT(frm, localid); /* local ID */ 3247195618Srpaulo break; 3248234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CONFIRM: 3249195618Srpaulo KASSERT(peerid != 0, ("sending peer confirm without peer id")); 3250234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ + 2; /* length */ 3251234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3252234875Smonthadar ADDSHORT(frm, localid); /* local ID */ 3253234875Smonthadar ADDSHORT(frm, peerid); /* peer ID */ 3254195618Srpaulo break; 3255234874Smonthadar case IEEE80211_ACTION_MESHPEERING_CLOSE: 3256195618Srpaulo if (peerid) 3257234875Smonthadar *frm++ = IEEE80211_MPM_MAX_SZ; /* length */ 3258195618Srpaulo else 3259234875Smonthadar *frm++ = IEEE80211_MPM_BASE_SZ + 2; /* length */ 3260234875Smonthadar ADDSHORT(frm, IEEE80211_MPPID_MPM); /* proto */ 3261195618Srpaulo ADDSHORT(frm, localid); /* local ID */ 3262195618Srpaulo if (peerid) 3263195618Srpaulo ADDSHORT(frm, peerid); /* peer ID */ 3264195618Srpaulo ADDSHORT(frm, reason); 3265195618Srpaulo break; 3266195618Srpaulo } 3267195618Srpaulo return frm; 3268195618Srpaulo} 3269195618Srpaulo 3270195618Srpaulo/* 3271195618Srpaulo * Compute an Airtime Link Metric for the link with this node. 3272195618Srpaulo * 3273195618Srpaulo * Based on Draft 3.0 spec (11B.10, p.149). 3274195618Srpaulo */ 3275195618Srpaulo/* 3276195618Srpaulo * Max 802.11s overhead. 3277195618Srpaulo */ 3278195618Srpaulo#define IEEE80211_MESH_MAXOVERHEAD \ 3279195618Srpaulo (sizeof(struct ieee80211_qosframe_addr4) \ 3280234878Smonthadar + sizeof(struct ieee80211_meshcntl_ae10) \ 3281195618Srpaulo + sizeof(struct llc) \ 3282195618Srpaulo + IEEE80211_ADDR_LEN \ 3283195618Srpaulo + IEEE80211_WEP_IVLEN \ 3284195618Srpaulo + IEEE80211_WEP_KIDLEN \ 3285195618Srpaulo + IEEE80211_WEP_CRCLEN \ 3286195618Srpaulo + IEEE80211_WEP_MICLEN \ 3287195618Srpaulo + IEEE80211_CRC_LEN) 3288195618Srpaulouint32_t 3289195618Srpaulomesh_airtime_calc(struct ieee80211_node *ni) 3290195618Srpaulo{ 3291195618Srpaulo#define M_BITS 8 3292195618Srpaulo#define S_FACTOR (2 * M_BITS) 3293195618Srpaulo struct ieee80211com *ic = ni->ni_ic; 3294195618Srpaulo struct ifnet *ifp = ni->ni_vap->iv_ifp; 3295195618Srpaulo const static int nbits = 8192 << M_BITS; 3296195618Srpaulo uint32_t overhead, rate, errrate; 3297195618Srpaulo uint64_t res; 3298195618Srpaulo 3299195618Srpaulo /* Time to transmit a frame */ 3300195618Srpaulo rate = ni->ni_txrate; 3301195618Srpaulo overhead = ieee80211_compute_duration(ic->ic_rt, 3302195618Srpaulo ifp->if_mtu + IEEE80211_MESH_MAXOVERHEAD, rate, 0) << M_BITS; 3303195618Srpaulo /* Error rate in percentage */ 3304195618Srpaulo /* XXX assuming small failures are ok */ 3305271861Sglebius errrate = (((ifp->if_get_counter(ifp, IFCOUNTER_OERRORS) + 3306271861Sglebius ifp->if_get_counter(ifp, IFCOUNTER_IERRORS)) / 100) << M_BITS) 3307271861Sglebius / 100; 3308195618Srpaulo res = (overhead + (nbits / rate)) * 3309195618Srpaulo ((1 << S_FACTOR) / ((1 << M_BITS) - errrate)); 3310195618Srpaulo 3311195618Srpaulo return (uint32_t)(res >> S_FACTOR); 3312195618Srpaulo#undef M_BITS 3313195618Srpaulo#undef S_FACTOR 3314195618Srpaulo} 3315195618Srpaulo 3316195618Srpaulo/* 3317195618Srpaulo * Add a Mesh Link Metric report IE to a frame. 3318195618Srpaulo */ 3319195618Srpaulouint8_t * 3320232479Sadrianieee80211_add_meshlmetric(uint8_t *frm, uint8_t flags, uint32_t metric) 3321195618Srpaulo{ 3322195618Srpaulo *frm++ = IEEE80211_ELEMID_MESHLINK; 3323232479Sadrian *frm++ = 5; 3324232479Sadrian *frm++ = flags; 3325195618Srpaulo ADDWORD(frm, metric); 3326195618Srpaulo return frm; 3327195618Srpaulo} 3328246506Smonthadar 3329246506Smonthadar/* 3330246506Smonthadar * Add a Mesh Gate Announcement IE to a frame. 3331246506Smonthadar */ 3332246506Smonthadaruint8_t * 3333246506Smonthadarieee80211_add_meshgate(uint8_t *frm, struct ieee80211_meshgann_ie *ie) 3334246506Smonthadar{ 3335246506Smonthadar *frm++ = IEEE80211_ELEMID_MESHGANN; /* ie */ 3336246506Smonthadar *frm++ = IEEE80211_MESHGANN_BASE_SZ; /* len */ 3337246506Smonthadar *frm++ = ie->gann_flags; 3338246506Smonthadar *frm++ = ie->gann_hopcount; 3339246506Smonthadar *frm++ = ie->gann_ttl; 3340246506Smonthadar IEEE80211_ADDR_COPY(frm, ie->gann_addr); 3341246506Smonthadar frm += 6; 3342246506Smonthadar ADDWORD(frm, ie->gann_seq); 3343246506Smonthadar ADDSHORT(frm, ie->gann_interval); 3344246506Smonthadar return frm; 3345246506Smonthadar} 3346195618Srpaulo#undef ADDSHORT 3347195618Srpaulo#undef ADDWORD 3348195618Srpaulo 3349195618Srpaulo/* 3350195618Srpaulo * Initialize any mesh-specific node state. 3351195618Srpaulo */ 3352195618Srpaulovoid 3353195618Srpauloieee80211_mesh_node_init(struct ieee80211vap *vap, struct ieee80211_node *ni) 3354195618Srpaulo{ 3355195618Srpaulo ni->ni_flags |= IEEE80211_NODE_QOS; 3356283291Sjkim callout_init(&ni->ni_mltimer, 1); 3357283291Sjkim callout_init(&ni->ni_mlhtimer, 1); 3358195618Srpaulo} 3359195618Srpaulo 3360195618Srpaulo/* 3361195618Srpaulo * Cleanup any mesh-specific node state. 3362195618Srpaulo */ 3363195618Srpaulovoid 3364195618Srpauloieee80211_mesh_node_cleanup(struct ieee80211_node *ni) 3365195618Srpaulo{ 3366195618Srpaulo struct ieee80211vap *vap = ni->ni_vap; 3367195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3368195618Srpaulo 3369195618Srpaulo callout_drain(&ni->ni_mltimer); 3370246497Smonthadar callout_drain(&ni->ni_mlhtimer); 3371195618Srpaulo /* NB: short-circuit callbacks after mesh_vdetach */ 3372195618Srpaulo if (vap->iv_mesh != NULL) 3373195618Srpaulo ms->ms_ppath->mpp_peerdown(ni); 3374195618Srpaulo} 3375195618Srpaulo 3376195618Srpaulovoid 3377195618Srpauloieee80211_parse_meshid(struct ieee80211_node *ni, const uint8_t *ie) 3378195618Srpaulo{ 3379195618Srpaulo ni->ni_meshidlen = ie[1]; 3380195618Srpaulo memcpy(ni->ni_meshid, ie + 2, ie[1]); 3381195618Srpaulo} 3382195618Srpaulo 3383195618Srpaulo/* 3384195618Srpaulo * Setup mesh-specific node state on neighbor discovery. 3385195618Srpaulo */ 3386195618Srpaulovoid 3387195618Srpauloieee80211_mesh_init_neighbor(struct ieee80211_node *ni, 3388195618Srpaulo const struct ieee80211_frame *wh, 3389195618Srpaulo const struct ieee80211_scanparams *sp) 3390195618Srpaulo{ 3391195618Srpaulo ieee80211_parse_meshid(ni, sp->meshid); 3392195618Srpaulo} 3393195618Srpaulo 3394198242Srpaulovoid 3395198242Srpauloieee80211_mesh_update_beacon(struct ieee80211vap *vap, 3396198242Srpaulo struct ieee80211_beacon_offsets *bo) 3397198242Srpaulo{ 3398198242Srpaulo KASSERT(vap->iv_opmode == IEEE80211_M_MBSS, ("not a MBSS vap")); 3399198242Srpaulo 3400198242Srpaulo if (isset(bo->bo_flags, IEEE80211_BEACON_MESHCONF)) { 3401198242Srpaulo (void)ieee80211_add_meshconf(bo->bo_meshconf, vap); 3402198242Srpaulo clrbit(bo->bo_flags, IEEE80211_BEACON_MESHCONF); 3403198242Srpaulo } 3404198242Srpaulo} 3405198242Srpaulo 3406195618Srpaulostatic int 3407195618Srpaulomesh_ioctl_get80211(struct ieee80211vap *vap, struct ieee80211req *ireq) 3408195618Srpaulo{ 3409195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3410195618Srpaulo uint8_t tmpmeshid[IEEE80211_NWID_LEN]; 3411195618Srpaulo struct ieee80211_mesh_route *rt; 3412195618Srpaulo struct ieee80211req_mesh_route *imr; 3413195618Srpaulo size_t len, off; 3414195618Srpaulo uint8_t *p; 3415195618Srpaulo int error; 3416195618Srpaulo 3417195618Srpaulo if (vap->iv_opmode != IEEE80211_M_MBSS) 3418195618Srpaulo return ENOSYS; 3419195618Srpaulo 3420195618Srpaulo error = 0; 3421195618Srpaulo switch (ireq->i_type) { 3422195618Srpaulo case IEEE80211_IOC_MESH_ID: 3423195618Srpaulo ireq->i_len = ms->ms_idlen; 3424195618Srpaulo memcpy(tmpmeshid, ms->ms_id, ireq->i_len); 3425195618Srpaulo error = copyout(tmpmeshid, ireq->i_data, ireq->i_len); 3426195618Srpaulo break; 3427195618Srpaulo case IEEE80211_IOC_MESH_AP: 3428195618Srpaulo ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_AP) != 0; 3429195618Srpaulo break; 3430195618Srpaulo case IEEE80211_IOC_MESH_FWRD: 3431195618Srpaulo ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_FWD) != 0; 3432195618Srpaulo break; 3433234892Smonthadar case IEEE80211_IOC_MESH_GATE: 3434234892Smonthadar ireq->i_val = (ms->ms_flags & IEEE80211_MESHFLAGS_GATE) != 0; 3435234892Smonthadar break; 3436195618Srpaulo case IEEE80211_IOC_MESH_TTL: 3437195618Srpaulo ireq->i_val = ms->ms_ttl; 3438195618Srpaulo break; 3439195618Srpaulo case IEEE80211_IOC_MESH_RTCMD: 3440195618Srpaulo switch (ireq->i_val) { 3441195618Srpaulo case IEEE80211_MESH_RTCMD_LIST: 3442195618Srpaulo len = 0; 3443195618Srpaulo MESH_RT_LOCK(ms); 3444195618Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 3445195618Srpaulo len += sizeof(*imr); 3446195618Srpaulo } 3447195618Srpaulo MESH_RT_UNLOCK(ms); 3448195618Srpaulo if (len > ireq->i_len || ireq->i_len < sizeof(*imr)) { 3449195618Srpaulo ireq->i_len = len; 3450195618Srpaulo return ENOMEM; 3451195618Srpaulo } 3452195618Srpaulo ireq->i_len = len; 3453195784Srpaulo /* XXX M_WAIT? */ 3454283538Sadrian p = IEEE80211_MALLOC(len, M_TEMP, 3455283538Sadrian IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 3456195618Srpaulo if (p == NULL) 3457195618Srpaulo return ENOMEM; 3458195618Srpaulo off = 0; 3459195618Srpaulo MESH_RT_LOCK(ms); 3460195618Srpaulo TAILQ_FOREACH(rt, &ms->ms_routes, rt_next) { 3461195618Srpaulo if (off >= len) 3462195618Srpaulo break; 3463195618Srpaulo imr = (struct ieee80211req_mesh_route *) 3464195618Srpaulo (p + off); 3465195618Srpaulo IEEE80211_ADDR_COPY(imr->imr_dest, 3466195618Srpaulo rt->rt_dest); 3467195618Srpaulo IEEE80211_ADDR_COPY(imr->imr_nexthop, 3468195618Srpaulo rt->rt_nexthop); 3469195618Srpaulo imr->imr_metric = rt->rt_metric; 3470195618Srpaulo imr->imr_nhops = rt->rt_nhops; 3471234877Smonthadar imr->imr_lifetime = 3472234877Smonthadar ieee80211_mesh_rt_update(rt, 0); 3473195784Srpaulo imr->imr_lastmseq = rt->rt_lastmseq; 3474234877Smonthadar imr->imr_flags = rt->rt_flags; /* last */ 3475195618Srpaulo off += sizeof(*imr); 3476195618Srpaulo } 3477195618Srpaulo MESH_RT_UNLOCK(ms); 3478195618Srpaulo error = copyout(p, (uint8_t *)ireq->i_data, 3479195618Srpaulo ireq->i_len); 3480283538Sadrian IEEE80211_FREE(p, M_TEMP); 3481195618Srpaulo break; 3482195618Srpaulo case IEEE80211_MESH_RTCMD_FLUSH: 3483195618Srpaulo case IEEE80211_MESH_RTCMD_ADD: 3484195618Srpaulo case IEEE80211_MESH_RTCMD_DELETE: 3485195618Srpaulo return EINVAL; 3486195618Srpaulo default: 3487195618Srpaulo return ENOSYS; 3488195618Srpaulo } 3489195618Srpaulo break; 3490195618Srpaulo case IEEE80211_IOC_MESH_PR_METRIC: 3491195618Srpaulo len = strlen(ms->ms_pmetric->mpm_descr); 3492195618Srpaulo if (ireq->i_len < len) 3493195618Srpaulo return EINVAL; 3494195618Srpaulo ireq->i_len = len; 3495195618Srpaulo error = copyout(ms->ms_pmetric->mpm_descr, 3496195618Srpaulo (uint8_t *)ireq->i_data, len); 3497195618Srpaulo break; 3498195618Srpaulo case IEEE80211_IOC_MESH_PR_PATH: 3499195618Srpaulo len = strlen(ms->ms_ppath->mpp_descr); 3500195618Srpaulo if (ireq->i_len < len) 3501195618Srpaulo return EINVAL; 3502195618Srpaulo ireq->i_len = len; 3503195618Srpaulo error = copyout(ms->ms_ppath->mpp_descr, 3504195618Srpaulo (uint8_t *)ireq->i_data, len); 3505195618Srpaulo break; 3506195618Srpaulo default: 3507195618Srpaulo return ENOSYS; 3508195618Srpaulo } 3509195618Srpaulo 3510195618Srpaulo return error; 3511195618Srpaulo} 3512195618SrpauloIEEE80211_IOCTL_GET(mesh, mesh_ioctl_get80211); 3513195618Srpaulo 3514195618Srpaulostatic int 3515195618Srpaulomesh_ioctl_set80211(struct ieee80211vap *vap, struct ieee80211req *ireq) 3516195618Srpaulo{ 3517195618Srpaulo struct ieee80211_mesh_state *ms = vap->iv_mesh; 3518195618Srpaulo uint8_t tmpmeshid[IEEE80211_NWID_LEN]; 3519195618Srpaulo uint8_t tmpaddr[IEEE80211_ADDR_LEN]; 3520195618Srpaulo char tmpproto[IEEE80211_MESH_PROTO_DSZ]; 3521195618Srpaulo int error; 3522195618Srpaulo 3523195618Srpaulo if (vap->iv_opmode != IEEE80211_M_MBSS) 3524195618Srpaulo return ENOSYS; 3525195618Srpaulo 3526195618Srpaulo error = 0; 3527195618Srpaulo switch (ireq->i_type) { 3528195618Srpaulo case IEEE80211_IOC_MESH_ID: 3529195618Srpaulo if (ireq->i_val != 0 || ireq->i_len > IEEE80211_MESHID_LEN) 3530195618Srpaulo return EINVAL; 3531195618Srpaulo error = copyin(ireq->i_data, tmpmeshid, ireq->i_len); 3532195784Srpaulo if (error != 0) 3533195618Srpaulo break; 3534195618Srpaulo memset(ms->ms_id, 0, IEEE80211_NWID_LEN); 3535195618Srpaulo ms->ms_idlen = ireq->i_len; 3536195618Srpaulo memcpy(ms->ms_id, tmpmeshid, ireq->i_len); 3537195784Srpaulo error = ENETRESET; 3538195618Srpaulo break; 3539195618Srpaulo case IEEE80211_IOC_MESH_AP: 3540195618Srpaulo if (ireq->i_val) 3541195618Srpaulo ms->ms_flags |= IEEE80211_MESHFLAGS_AP; 3542195618Srpaulo else 3543195618Srpaulo ms->ms_flags &= ~IEEE80211_MESHFLAGS_AP; 3544195784Srpaulo error = ENETRESET; 3545195618Srpaulo break; 3546195618Srpaulo case IEEE80211_IOC_MESH_FWRD: 3547195618Srpaulo if (ireq->i_val) 3548195618Srpaulo ms->ms_flags |= IEEE80211_MESHFLAGS_FWD; 3549195618Srpaulo else 3550195618Srpaulo ms->ms_flags &= ~IEEE80211_MESHFLAGS_FWD; 3551246506Smonthadar mesh_gatemode_setup(vap); 3552195618Srpaulo break; 3553234892Smonthadar case IEEE80211_IOC_MESH_GATE: 3554234892Smonthadar if (ireq->i_val) 3555234892Smonthadar ms->ms_flags |= IEEE80211_MESHFLAGS_GATE; 3556234892Smonthadar else 3557234892Smonthadar ms->ms_flags &= ~IEEE80211_MESHFLAGS_GATE; 3558234892Smonthadar break; 3559195618Srpaulo case IEEE80211_IOC_MESH_TTL: 3560195618Srpaulo ms->ms_ttl = (uint8_t) ireq->i_val; 3561195618Srpaulo break; 3562195618Srpaulo case IEEE80211_IOC_MESH_RTCMD: 3563195618Srpaulo switch (ireq->i_val) { 3564195618Srpaulo case IEEE80211_MESH_RTCMD_LIST: 3565195618Srpaulo return EINVAL; 3566195618Srpaulo case IEEE80211_MESH_RTCMD_FLUSH: 3567195618Srpaulo ieee80211_mesh_rt_flush(vap); 3568195618Srpaulo break; 3569195618Srpaulo case IEEE80211_MESH_RTCMD_ADD: 3570361038Sjhb error = copyin(ireq->i_data, tmpaddr, 3571361038Sjhb IEEE80211_ADDR_LEN); 3572361038Sjhb if (error != 0) 3573361038Sjhb break; 3574361038Sjhb if (IEEE80211_ADDR_EQ(vap->iv_myaddr, tmpaddr) || 3575361038Sjhb IEEE80211_ADDR_EQ(broadcastaddr, tmpaddr)) 3576195618Srpaulo return EINVAL; 3577361038Sjhb ieee80211_mesh_discover(vap, tmpaddr, NULL); 3578195618Srpaulo break; 3579195618Srpaulo case IEEE80211_MESH_RTCMD_DELETE: 3580361038Sjhb error = copyin(ireq->i_data, tmpaddr, 3581361038Sjhb IEEE80211_ADDR_LEN); 3582361038Sjhb if (error != 0) 3583361038Sjhb break; 3584361038Sjhb ieee80211_mesh_rt_del(vap, tmpaddr); 3585195618Srpaulo break; 3586195618Srpaulo default: 3587195618Srpaulo return ENOSYS; 3588195618Srpaulo } 3589195618Srpaulo break; 3590195618Srpaulo case IEEE80211_IOC_MESH_PR_METRIC: 3591195618Srpaulo error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto)); 3592195784Srpaulo if (error == 0) { 3593195784Srpaulo error = mesh_select_proto_metric(vap, tmpproto); 3594195784Srpaulo if (error == 0) 3595195784Srpaulo error = ENETRESET; 3596195784Srpaulo } 3597195618Srpaulo break; 3598195618Srpaulo case IEEE80211_IOC_MESH_PR_PATH: 3599195618Srpaulo error = copyin(ireq->i_data, tmpproto, sizeof(tmpproto)); 3600195784Srpaulo if (error == 0) { 3601195784Srpaulo error = mesh_select_proto_path(vap, tmpproto); 3602195784Srpaulo if (error == 0) 3603195784Srpaulo error = ENETRESET; 3604195784Srpaulo } 3605195618Srpaulo break; 3606195618Srpaulo default: 3607195618Srpaulo return ENOSYS; 3608195618Srpaulo } 3609195618Srpaulo return error; 3610195618Srpaulo} 3611195618SrpauloIEEE80211_IOCTL_SET(mesh, mesh_ioctl_set80211); 3612