ieee80211_freebsd.c revision 178957
1185377Ssam/*- 2187831Ssam * Copyright (c) 2003-2008 Sam Leffler, Errno Consulting 3185377Ssam * All rights reserved. 4185377Ssam * 5185377Ssam * Redistribution and use in source and binary forms, with or without 6185377Ssam * modification, are permitted provided that the following conditions 7185377Ssam * are met: 8185377Ssam * 1. Redistributions of source code must retain the above copyright 9185377Ssam * notice, this list of conditions and the following disclaimer. 10185377Ssam * 2. Redistributions in binary form must reproduce the above copyright 11185377Ssam * notice, this list of conditions and the following disclaimer in the 12185377Ssam * documentation and/or other materials provided with the distribution. 13185377Ssam * 14185377Ssam * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15185377Ssam * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16185377Ssam * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17187831Ssam * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18185377Ssam * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19185377Ssam * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20185377Ssam * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21185377Ssam * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22185377Ssam * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23185377Ssam * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24185377Ssam */ 25185377Ssam 26185377Ssam#include <sys/cdefs.h> 27185377Ssam__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_freebsd.c 178957 2008-05-12 00:15:30Z sam $"); 28185377Ssam 29185377Ssam/* 30185377Ssam * IEEE 802.11 support (FreeBSD-specific code) 31185377Ssam */ 32185377Ssam#include "opt_wlan.h" 33185377Ssam 34185377Ssam#include <sys/param.h> 35185377Ssam#include <sys/kernel.h> 36185377Ssam#include <sys/systm.h> 37185377Ssam#include <sys/linker.h> 38185377Ssam#include <sys/mbuf.h> 39185377Ssam#include <sys/module.h> 40185377Ssam#include <sys/proc.h> 41185377Ssam#include <sys/sysctl.h> 42185377Ssam 43185377Ssam#include <sys/socket.h> 44185377Ssam 45185377Ssam#include <net/if.h> 46185377Ssam#include <net/if_clone.h> 47185377Ssam#include <net/if_media.h> 48185377Ssam#include <net/if_types.h> 49185377Ssam#include <net/ethernet.h> 50185377Ssam#include <net/route.h> 51185377Ssam 52185377Ssam#include <net80211/ieee80211_var.h> 53185377Ssam 54185377SsamSYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters"); 55185377Ssam 56185377Ssam#ifdef IEEE80211_DEBUG 57185377Ssamint ieee80211_debug = 0; 58185377SsamSYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug, 59185377Ssam 0, "debugging printfs"); 60185377Ssam#endif 61185377Ssamextern int ieee80211_recv_bar_ena; 62185377SsamSYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 63185377Ssam 0, "BAR frame processing (ena/dis)"); 64185377Ssamextern int ieee80211_nol_timeout; 65185377SsamSYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW, 66185377Ssam &ieee80211_nol_timeout, 0, "NOL timeout (secs)"); 67185377Ssamextern int ieee80211_cac_timeout; 68185377SsamSYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW, 69185377Ssam &ieee80211_cac_timeout, 0, "CAC timeout (secs)"); 70185377Ssam 71185377SsamMALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state"); 72185377Ssam 73185377Ssam/* 74185377Ssam * Allocate/free com structure in conjunction with ifnet; 75185377Ssam * these routines are registered with if_register_com_alloc 76185377Ssam * below and are called automatically by the ifnet code 77185377Ssam * when the ifnet of the parent device is created. 78185377Ssam */ 79185377Ssamstatic void * 80185377Ssamwlan_alloc(u_char type, struct ifnet *ifp) 81185377Ssam{ 82185377Ssam struct ieee80211com *ic; 83185377Ssam 84185377Ssam ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO); 85185377Ssam ic->ic_ifp = ifp; 86185377Ssam 87185377Ssam return (ic); 88185377Ssam} 89185377Ssam 90185377Ssamstatic void 91185377Ssamwlan_free(void *ic, u_char type) 92185377Ssam{ 93185377Ssam free(ic, M_80211_COM); 94185377Ssam} 95185377Ssam 96185377Ssamstatic int 97185377Ssamwlan_clone_create(struct if_clone *ifc, int unit, caddr_t params) 98185377Ssam{ 99185377Ssam struct ieee80211_clone_params cp; 100185377Ssam struct ieee80211vap *vap; 101185377Ssam struct ieee80211com *ic; 102185377Ssam struct ifnet *ifp; 103185377Ssam int error; 104185377Ssam 105185377Ssam error = copyin(params, &cp, sizeof(cp)); 106185377Ssam if (error) 107185377Ssam return error; 108185377Ssam ifp = ifunit(cp.icp_parent); 109185377Ssam if (ifp == NULL) 110185377Ssam return ENXIO; 111185377Ssam /* XXX move printfs to DIAGNOSTIC before release */ 112185377Ssam if (ifp->if_type != IFT_IEEE80211) { 113185377Ssam if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__); 114185377Ssam return ENXIO; 115185377Ssam } 116185377Ssam if (cp.icp_opmode >= IEEE80211_OPMODE_MAX) { 117185377Ssam if_printf(ifp, "%s: invalid opmode %d\n", 118185377Ssam __func__, cp.icp_opmode); 119185377Ssam return EINVAL; 120185377Ssam } 121185377Ssam ic = ifp->if_l2com; 122185377Ssam if ((ic->ic_caps & ieee80211_opcap[cp.icp_opmode]) == 0) { 123185377Ssam if_printf(ifp, "%s mode not supported\n", 124185377Ssam ieee80211_opmode_name[cp.icp_opmode]); 125185377Ssam return EOPNOTSUPP; 126185377Ssam } 127185377Ssam vap = ic->ic_vap_create(ic, ifc->ifc_name, unit, 128185377Ssam cp.icp_opmode, cp.icp_flags, cp.icp_bssid, 129185377Ssam cp.icp_flags & IEEE80211_CLONE_MACADDR ? 130185377Ssam cp.icp_macaddr : ic->ic_myaddr); 131185377Ssam return (vap == NULL ? EIO : 0); 132185377Ssam} 133185377Ssam 134185377Ssamstatic void 135185377Ssamwlan_clone_destroy(struct ifnet *ifp) 136185377Ssam{ 137185377Ssam struct ieee80211vap *vap = ifp->if_softc; 138185377Ssam struct ieee80211com *ic = vap->iv_ic; 139185377Ssam 140185377Ssam ic->ic_vap_delete(vap); 141185377Ssam} 142185377SsamIFC_SIMPLE_DECLARE(wlan, 0); 143185377Ssam 144185377Ssamvoid 145185377Ssamieee80211_vap_destroy(struct ieee80211vap *vap) 146185377Ssam{ 147185377Ssam ifc_simple_destroy(&wlan_cloner, vap->iv_ifp); 148185377Ssam} 149185377Ssam 150187831Ssamstatic int 151187831Ssamieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS) 152185377Ssam{ 153185377Ssam int msecs = ticks_to_msecs(*(int *)arg1); 154187831Ssam int error, t; 155187831Ssam 156187831Ssam error = sysctl_handle_int(oidp, &msecs, 0, req); 157187831Ssam if (error || !req->newptr) 158185380Ssam return error; 159187831Ssam t = msecs_to_ticks(msecs); 160185377Ssam *(int *)arg1 = (t < 1) ? 1 : t; 161187831Ssam return 0; 162187831Ssam} 163185377Ssam 164187831Ssam#ifdef IEEE80211_AMPDU_AGE 165185377Ssamextern int ieee80211_ampdu_age; 166185377SsamSYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW, 167185377Ssam &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I", 168185377Ssam "AMPDU max reorder age (ms)"); 169185377Ssam#endif 170185377Ssamextern int ieee80211_addba_timeout; 171185377SsamSYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW, 172185377Ssam &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I", 173185377Ssam "ADDBA request timeout (ms)"); 174185377Ssamextern int ieee80211_addba_backoff; 175185377SsamSYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW, 176185377Ssam &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I", 177185377Ssam "ADDBA request backoff (ms)"); 178185377Ssamextern int ieee80211_addba_maxtries; 179185377SsamSYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW, 180185377Ssam &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff"); 181185377Ssam 182185377Ssamstatic int 183185377Ssamieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS) 184185377Ssam{ 185185377Ssam int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT; 186185377Ssam int error; 187185377Ssam 188185377Ssam error = sysctl_handle_int(oidp, &inact, 0, req); 189185377Ssam if (error || !req->newptr) 190185377Ssam return error; 191185377Ssam *(int *)arg1 = inact / IEEE80211_INACT_WAIT; 192185377Ssam return 0; 193185377Ssam} 194185377Ssam 195185377Ssamstatic int 196185377Ssamieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS) 197185377Ssam{ 198185377Ssam struct ieee80211com *ic = arg1; 199185377Ssam const char *name = ic->ic_ifp->if_xname; 200185377Ssam 201185377Ssam return SYSCTL_OUT(req, name, strlen(name)); 202185377Ssam} 203185377Ssam 204185377Ssamvoid 205217621Sadrianieee80211_sysctl_attach(struct ieee80211com *ic) 206217621Sadrian{ 207185377Ssam} 208185377Ssam 209185377Ssamvoid 210185377Ssamieee80211_sysctl_detach(struct ieee80211com *ic) 211185377Ssam{ 212185377Ssam} 213185377Ssam 214185377Ssamvoid 215185377Ssamieee80211_sysctl_vattach(struct ieee80211vap *vap) 216185377Ssam{ 217185377Ssam struct ifnet *ifp = vap->iv_ifp; 218185377Ssam struct sysctl_ctx_list *ctx; 219185377Ssam struct sysctl_oid *oid; 220185377Ssam char num[14]; /* sufficient for 32 bits */ 221185377Ssam 222185377Ssam MALLOC(ctx, struct sysctl_ctx_list *, sizeof(struct sysctl_ctx_list), 223185377Ssam M_DEVBUF, M_NOWAIT | M_ZERO); 224185377Ssam if (ctx == NULL) { 225185377Ssam if_printf(ifp, "%s: cannot allocate sysctl context!\n", 226185377Ssam __func__); 227185377Ssam return; 228185377Ssam } 229185377Ssam sysctl_ctx_init(ctx); 230185377Ssam snprintf(num, sizeof(num), "%u", ifp->if_dunit); 231185380Ssam oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan), 232185380Ssam OID_AUTO, num, CTLFLAG_RD, NULL, ""); 233185380Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 234185377Ssam "%parent", CTLFLAG_RD, vap->iv_ic, 0, 235185377Ssam ieee80211_sysctl_parent, "A", "parent device"); 236185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 237185377Ssam "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0, 238188974Ssam "driver capabilities"); 239188974Ssam#ifdef IEEE80211_DEBUG 240185377Ssam vap->iv_debug = ieee80211_debug; 241185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 242185377Ssam "debug", CTLFLAG_RW, &vap->iv_debug, 0, 243185377Ssam "control debugging printfs"); 244185377Ssam#endif 245185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 246185377Ssam "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0, 247185377Ssam "consecutive beacon misses before scanning"); 248185377Ssam /* XXX inherit from tunables */ 249185377Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 250185377Ssam "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0, 251185377Ssam ieee80211_sysctl_inact, "I", 252185377Ssam "station inactivity timeout (sec)"); 253185377Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 254185377Ssam "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0, 255185377Ssam ieee80211_sysctl_inact, "I", 256185377Ssam "station inactivity probe timeout (sec)"); 257185377Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 258185377Ssam "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0, 259185377Ssam ieee80211_sysctl_inact, "I", 260185377Ssam "station authentication timeout (sec)"); 261185377Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 262185377Ssam "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0, 263185377Ssam ieee80211_sysctl_inact, "I", 264185377Ssam "station initial state timeout (sec)"); 265185377Ssam if (vap->iv_htcaps & IEEE80211_HTC_HT) { 266185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 267185377Ssam "ampdu_mintraffic_bk", CTLFLAG_RW, 268185377Ssam &vap->iv_ampdu_mintraffic[WME_AC_BK], 0, 269185377Ssam "BK traffic tx aggr threshold (pps)"); 270185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 271185377Ssam "ampdu_mintraffic_be", CTLFLAG_RW, 272185377Ssam &vap->iv_ampdu_mintraffic[WME_AC_BE], 0, 273185377Ssam "BE traffic tx aggr threshold (pps)"); 274185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 275185377Ssam "ampdu_mintraffic_vo", CTLFLAG_RW, 276185377Ssam &vap->iv_ampdu_mintraffic[WME_AC_VO], 0, 277185377Ssam "VO traffic tx aggr threshold (pps)"); 278185377Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 279185377Ssam "ampdu_mintraffic_vi", CTLFLAG_RW, 280185377Ssam &vap->iv_ampdu_mintraffic[WME_AC_VI], 0, 281185377Ssam "VI traffic tx aggr threshold (pps)"); 282185377Ssam } 283185377Ssam vap->iv_sysctl = ctx; 284185377Ssam vap->iv_oid = oid; 285185377Ssam} 286185377Ssam 287185377Ssamvoid 288185377Ssamieee80211_sysctl_vdetach(struct ieee80211vap *vap) 289185377Ssam{ 290185377Ssam 291185377Ssam if (vap->iv_sysctl != NULL) { 292185377Ssam sysctl_ctx_free(vap->iv_sysctl); 293185377Ssam FREE(vap->iv_sysctl, M_DEVBUF); 294185377Ssam vap->iv_sysctl = NULL; 295185377Ssam } 296185377Ssam} 297185377Ssam 298185377Ssamint 299225444Sadrianieee80211_node_dectestref(struct ieee80211_node *ni) 300185377Ssam{ 301185377Ssam /* XXX need equivalent of atomic_dec_and_test */ 302185377Ssam atomic_subtract_int(&ni->ni_refcnt, 1); 303185377Ssam return atomic_cmpset_int(&ni->ni_refcnt, 0, 1); 304185377Ssam} 305185377Ssam 306185377Ssamvoid 307185377Ssamieee80211_drain_ifq(struct ifqueue *ifq) 308185377Ssam{ 309217684Sadrian struct ieee80211_node *ni; 310187831Ssam struct mbuf *m; 311217684Sadrian 312185377Ssam for (;;) { 313185377Ssam IF_DEQUEUE(ifq, m); 314 if (m == NULL) 315 break; 316 317 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 318 KASSERT(ni != NULL, ("frame w/o node")); 319 ieee80211_free_node(ni); 320 m->m_pkthdr.rcvif = NULL; 321 322 m_freem(m); 323 } 324} 325 326void 327ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap) 328{ 329 struct ieee80211_node *ni; 330 struct mbuf *m, **mprev; 331 332 IF_LOCK(ifq); 333 mprev = &ifq->ifq_head; 334 while ((m = *mprev) != NULL) { 335 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 336 if (ni != NULL && ni->ni_vap == vap) { 337 *mprev = m->m_nextpkt; /* remove from list */ 338 ifq->ifq_len--; 339 340 m_freem(m); 341 ieee80211_free_node(ni); /* reclaim ref */ 342 } else 343 mprev = &m->m_nextpkt; 344 } 345 /* recalculate tail ptr */ 346 m = ifq->ifq_head; 347 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt) 348 ; 349 ifq->ifq_tail = m; 350 IF_UNLOCK(ifq); 351} 352 353/* 354 * As above, for mbufs allocated with m_gethdr/MGETHDR 355 * or initialized by M_COPY_PKTHDR. 356 */ 357#define MC_ALIGN(m, len) \ 358do { \ 359 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \ 360} while (/* CONSTCOND */ 0) 361 362/* 363 * Allocate and setup a management frame of the specified 364 * size. We return the mbuf and a pointer to the start 365 * of the contiguous data area that's been reserved based 366 * on the packet length. The data area is forced to 32-bit 367 * alignment and the buffer length to a multiple of 4 bytes. 368 * This is done mainly so beacon frames (that require this) 369 * can use this interface too. 370 */ 371struct mbuf * 372ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen) 373{ 374 struct mbuf *m; 375 u_int len; 376 377 /* 378 * NB: we know the mbuf routines will align the data area 379 * so we don't need to do anything special. 380 */ 381 len = roundup2(headroom + pktlen, 4); 382 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 383 if (len < MINCLSIZE) { 384 m = m_gethdr(M_NOWAIT, MT_DATA); 385 /* 386 * Align the data in case additional headers are added. 387 * This should only happen when a WEP header is added 388 * which only happens for shared key authentication mgt 389 * frames which all fit in MHLEN. 390 */ 391 if (m != NULL) 392 MH_ALIGN(m, len); 393 } else { 394 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 395 if (m != NULL) 396 MC_ALIGN(m, len); 397 } 398 if (m != NULL) { 399 m->m_data += headroom; 400 *frm = m->m_data; 401 } 402 return m; 403} 404 405int 406ieee80211_add_callback(struct mbuf *m, 407 void (*func)(struct ieee80211_node *, void *, int), void *arg) 408{ 409 struct m_tag *mtag; 410 struct ieee80211_cb *cb; 411 412 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, 413 sizeof(struct ieee80211_cb), M_NOWAIT); 414 if (mtag == NULL) 415 return 0; 416 417 cb = (struct ieee80211_cb *)(mtag+1); 418 cb->func = func; 419 cb->arg = arg; 420 m_tag_prepend(m, mtag); 421 m->m_flags |= M_TXCB; 422 return 1; 423} 424 425void 426ieee80211_process_callback(struct ieee80211_node *ni, 427 struct mbuf *m, int status) 428{ 429 struct m_tag *mtag; 430 431 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL); 432 if (mtag != NULL) { 433 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1); 434 cb->func(ni, cb->arg, status); 435 } 436} 437 438#include <sys/libkern.h> 439 440void 441get_random_bytes(void *p, size_t n) 442{ 443 uint8_t *dp = p; 444 445 while (n > 0) { 446 uint32_t v = arc4random(); 447 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n; 448 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n); 449 dp += sizeof(uint32_t), n -= nb; 450 } 451} 452 453/* 454 * Helper function for events that pass just a single mac address. 455 */ 456static void 457notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN]) 458{ 459 struct ieee80211_join_event iev; 460 461 memset(&iev, 0, sizeof(iev)); 462 IEEE80211_ADDR_COPY(iev.iev_addr, mac); 463 rt_ieee80211msg(ifp, op, &iev, sizeof(iev)); 464} 465 466void 467ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc) 468{ 469 struct ieee80211vap *vap = ni->ni_vap; 470 struct ifnet *ifp = vap->iv_ifp; 471 472 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join", 473 (ni == vap->iv_bss) ? "bss " : ""); 474 475 if (ni == vap->iv_bss) { 476 notify_macaddr(ifp, newassoc ? 477 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid); 478 if_link_state_change(ifp, LINK_STATE_UP); 479 } else { 480 notify_macaddr(ifp, newassoc ? 481 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr); 482 } 483} 484 485void 486ieee80211_notify_node_leave(struct ieee80211_node *ni) 487{ 488 struct ieee80211vap *vap = ni->ni_vap; 489 struct ifnet *ifp = vap->iv_ifp; 490 491 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave", 492 (ni == vap->iv_bss) ? "bss " : ""); 493 494 if (ni == vap->iv_bss) { 495 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 496 if_link_state_change(ifp, LINK_STATE_DOWN); 497 } else { 498 /* fire off wireless event station leaving */ 499 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr); 500 } 501} 502 503void 504ieee80211_notify_scan_done(struct ieee80211vap *vap) 505{ 506 struct ifnet *ifp = vap->iv_ifp; 507 508 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done"); 509 510 /* dispatch wireless event indicating scan completed */ 511 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 512} 513 514void 515ieee80211_notify_replay_failure(struct ieee80211vap *vap, 516 const struct ieee80211_frame *wh, const struct ieee80211_key *k, 517 u_int64_t rsc) 518{ 519 struct ifnet *ifp = vap->iv_ifp; 520 521 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 522 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>", 523 k->wk_cipher->ic_name, (intmax_t) rsc, 524 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID], 525 k->wk_keyix, k->wk_rxkeyix); 526 527 if (ifp != NULL) { /* NB: for cipher test modules */ 528 struct ieee80211_replay_event iev; 529 530 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 531 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 532 iev.iev_cipher = k->wk_cipher->ic_cipher; 533 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 534 iev.iev_keyix = k->wk_rxkeyix; 535 else 536 iev.iev_keyix = k->wk_keyix; 537 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */ 538 iev.iev_rsc = rsc; 539 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 540 } 541} 542 543void 544ieee80211_notify_michael_failure(struct ieee80211vap *vap, 545 const struct ieee80211_frame *wh, u_int keyix) 546{ 547 struct ifnet *ifp = vap->iv_ifp; 548 549 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 550 "michael MIC verification failed <keyix %u>", keyix); 551 vap->iv_stats.is_rx_tkipmic++; 552 553 if (ifp != NULL) { /* NB: for cipher test modules */ 554 struct ieee80211_michael_event iev; 555 556 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 557 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 558 iev.iev_cipher = IEEE80211_CIPHER_TKIP; 559 iev.iev_keyix = keyix; 560 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 561 } 562} 563 564void 565ieee80211_notify_wds_discover(struct ieee80211_node *ni) 566{ 567 struct ieee80211vap *vap = ni->ni_vap; 568 struct ifnet *ifp = vap->iv_ifp; 569 570 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr); 571} 572 573void 574ieee80211_notify_csa(struct ieee80211com *ic, 575 const struct ieee80211_channel *c, int mode, int count) 576{ 577 struct ifnet *ifp = ic->ic_ifp; 578 struct ieee80211_csa_event iev; 579 580 memset(&iev, 0, sizeof(iev)); 581 iev.iev_flags = c->ic_flags; 582 iev.iev_freq = c->ic_freq; 583 iev.iev_ieee = c->ic_ieee; 584 iev.iev_mode = mode; 585 iev.iev_count = count; 586 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev)); 587} 588 589void 590ieee80211_notify_radar(struct ieee80211com *ic, 591 const struct ieee80211_channel *c) 592{ 593 struct ifnet *ifp = ic->ic_ifp; 594 struct ieee80211_radar_event iev; 595 596 memset(&iev, 0, sizeof(iev)); 597 iev.iev_flags = c->ic_flags; 598 iev.iev_freq = c->ic_freq; 599 iev.iev_ieee = c->ic_ieee; 600 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev)); 601} 602 603void 604ieee80211_notify_cac(struct ieee80211com *ic, 605 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type) 606{ 607 struct ifnet *ifp = ic->ic_ifp; 608 struct ieee80211_cac_event iev; 609 610 memset(&iev, 0, sizeof(iev)); 611 iev.iev_flags = c->ic_flags; 612 iev.iev_freq = c->ic_freq; 613 iev.iev_ieee = c->ic_ieee; 614 iev.iev_type = type; 615 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev)); 616} 617 618void 619ieee80211_notify_node_deauth(struct ieee80211_node *ni) 620{ 621 struct ieee80211vap *vap = ni->ni_vap; 622 struct ifnet *ifp = vap->iv_ifp; 623 624 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth"); 625 626 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr); 627} 628 629void 630ieee80211_notify_node_auth(struct ieee80211_node *ni) 631{ 632 struct ieee80211vap *vap = ni->ni_vap; 633 struct ifnet *ifp = vap->iv_ifp; 634 635 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth"); 636 637 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr); 638} 639 640void 641ieee80211_notify_country(struct ieee80211vap *vap, 642 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2]) 643{ 644 struct ifnet *ifp = vap->iv_ifp; 645 struct ieee80211_country_event iev; 646 647 memset(&iev, 0, sizeof(iev)); 648 IEEE80211_ADDR_COPY(iev.iev_addr, bssid); 649 iev.iev_cc[0] = cc[0]; 650 iev.iev_cc[1] = cc[1]; 651 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev)); 652} 653 654void 655ieee80211_notify_radio(struct ieee80211com *ic, int state) 656{ 657 struct ifnet *ifp = ic->ic_ifp; 658 struct ieee80211_radio_event iev; 659 660 memset(&iev, 0, sizeof(iev)); 661 iev.iev_state = state; 662 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev)); 663} 664 665void 666ieee80211_load_module(const char *modname) 667{ 668 669#ifdef notyet 670 (void)kern_kldload(curthread, modname, NULL); 671#else 672 printf("%s: load the %s module by hand for now.\n", __func__, modname); 673#endif 674} 675 676/* 677 * Module glue. 678 * 679 * NB: the module name is "wlan" for compatibility with NetBSD. 680 */ 681static int 682wlan_modevent(module_t mod, int type, void *unused) 683{ 684 switch (type) { 685 case MOD_LOAD: 686 if (bootverbose) 687 printf("wlan: <802.11 Link Layer>\n"); 688 if_clone_attach(&wlan_cloner); 689 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free); 690 return 0; 691 case MOD_UNLOAD: 692 if_deregister_com_alloc(IFT_IEEE80211); 693 if_clone_detach(&wlan_cloner); 694 return 0; 695 } 696 return EINVAL; 697} 698 699static moduledata_t wlan_mod = { 700 "wlan", 701 wlan_modevent, 702 0 703}; 704DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 705MODULE_VERSION(wlan, 1); 706MODULE_DEPEND(wlan, ether, 1, 1, 1); 707