ieee80211_freebsd.c revision 190526
1/*- 2 * Copyright (c) 2003-2009 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_freebsd.c 190526 2009-03-29 17:59:14Z sam $"); 28 29/* 30 * IEEE 802.11 support (FreeBSD-specific code) 31 */ 32#include "opt_wlan.h" 33 34#include <sys/param.h> 35#include <sys/kernel.h> 36#include <sys/systm.h> 37#include <sys/linker.h> 38#include <sys/mbuf.h> 39#include <sys/module.h> 40#include <sys/proc.h> 41#include <sys/sysctl.h> 42 43#include <sys/socket.h> 44 45#include <net/if.h> 46#include <net/if_dl.h> 47#include <net/if_clone.h> 48#include <net/if_media.h> 49#include <net/if_types.h> 50#include <net/ethernet.h> 51#include <net/route.h> 52 53#include <net80211/ieee80211_var.h> 54 55SYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters"); 56 57#ifdef IEEE80211_DEBUG 58int ieee80211_debug = 0; 59SYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug, 60 0, "debugging printfs"); 61#endif 62extern int ieee80211_recv_bar_ena; 63SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 64 0, "BAR frame processing (ena/dis)"); 65extern int ieee80211_nol_timeout; 66SYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW, 67 &ieee80211_nol_timeout, 0, "NOL timeout (secs)"); 68extern int ieee80211_cac_timeout; 69SYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW, 70 &ieee80211_cac_timeout, 0, "CAC timeout (secs)"); 71 72MALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state"); 73 74/* 75 * Allocate/free com structure in conjunction with ifnet; 76 * these routines are registered with if_register_com_alloc 77 * below and are called automatically by the ifnet code 78 * when the ifnet of the parent device is created. 79 */ 80static void * 81wlan_alloc(u_char type, struct ifnet *ifp) 82{ 83 struct ieee80211com *ic; 84 85 ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO); 86 ic->ic_ifp = ifp; 87 88 return (ic); 89} 90 91static void 92wlan_free(void *ic, u_char type) 93{ 94 free(ic, M_80211_COM); 95} 96 97static int 98wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params) 99{ 100 struct ieee80211_clone_params cp; 101 struct ieee80211vap *vap; 102 struct ieee80211com *ic; 103 struct ifnet *ifp; 104 int error; 105 106 error = copyin(params, &cp, sizeof(cp)); 107 if (error) 108 return error; 109 ifp = ifunit(cp.icp_parent); 110 if (ifp == NULL) 111 return ENXIO; 112 /* XXX move printfs to DIAGNOSTIC before release */ 113 if (ifp->if_type != IFT_IEEE80211) { 114 if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__); 115 return ENXIO; 116 } 117 if (cp.icp_opmode >= IEEE80211_OPMODE_MAX) { 118 if_printf(ifp, "%s: invalid opmode %d\n", 119 __func__, cp.icp_opmode); 120 return EINVAL; 121 } 122 ic = ifp->if_l2com; 123 if ((ic->ic_caps & ieee80211_opcap[cp.icp_opmode]) == 0) { 124 if_printf(ifp, "%s mode not supported\n", 125 ieee80211_opmode_name[cp.icp_opmode]); 126 return EOPNOTSUPP; 127 } 128 if ((cp.icp_flags & IEEE80211_CLONE_TDMA) && 129#ifdef IEEE80211_SUPPORT_TDMA 130 (ic->ic_caps & IEEE80211_C_TDMA) == 0 131#else 132 (1) 133#endif 134 ) { 135 if_printf(ifp, "TDMA not supported\n"); 136 return EOPNOTSUPP; 137 } 138 vap = ic->ic_vap_create(ic, ifc->ifc_name, unit, 139 cp.icp_opmode, cp.icp_flags, cp.icp_bssid, 140 cp.icp_flags & IEEE80211_CLONE_MACADDR ? 141 cp.icp_macaddr : (const uint8_t *)IF_LLADDR(ifp)); 142 return (vap == NULL ? EIO : 0); 143} 144 145static void 146wlan_clone_destroy(struct ifnet *ifp) 147{ 148 struct ieee80211vap *vap = ifp->if_softc; 149 struct ieee80211com *ic = vap->iv_ic; 150 151 ic->ic_vap_delete(vap); 152} 153IFC_SIMPLE_DECLARE(wlan, 0); 154 155void 156ieee80211_vap_destroy(struct ieee80211vap *vap) 157{ 158 if_clone_destroyif(&wlan_cloner, vap->iv_ifp); 159} 160 161static int 162ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS) 163{ 164 int msecs = ticks_to_msecs(*(int *)arg1); 165 int error, t; 166 167 error = sysctl_handle_int(oidp, &msecs, 0, req); 168 if (error || !req->newptr) 169 return error; 170 t = msecs_to_ticks(msecs); 171 *(int *)arg1 = (t < 1) ? 1 : t; 172 return 0; 173} 174 175#ifdef IEEE80211_AMPDU_AGE 176extern int ieee80211_ampdu_age; 177SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW, 178 &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I", 179 "AMPDU max reorder age (ms)"); 180#endif 181extern int ieee80211_addba_timeout; 182SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW, 183 &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I", 184 "ADDBA request timeout (ms)"); 185extern int ieee80211_addba_backoff; 186SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW, 187 &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I", 188 "ADDBA request backoff (ms)"); 189extern int ieee80211_addba_maxtries; 190SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW, 191 &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff"); 192 193static int 194ieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS) 195{ 196 int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT; 197 int error; 198 199 error = sysctl_handle_int(oidp, &inact, 0, req); 200 if (error || !req->newptr) 201 return error; 202 *(int *)arg1 = inact / IEEE80211_INACT_WAIT; 203 return 0; 204} 205 206static int 207ieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS) 208{ 209 struct ieee80211com *ic = arg1; 210 const char *name = ic->ic_ifp->if_xname; 211 212 return SYSCTL_OUT(req, name, strlen(name)); 213} 214 215static int 216ieee80211_sysctl_radar(SYSCTL_HANDLER_ARGS) 217{ 218 struct ieee80211com *ic = arg1; 219 int t = 0, error; 220 221 error = sysctl_handle_int(oidp, &t, 0, req); 222 if (error || !req->newptr) 223 return error; 224 IEEE80211_LOCK(ic); 225 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 226 IEEE80211_UNLOCK(ic); 227 return 0; 228} 229 230void 231ieee80211_sysctl_attach(struct ieee80211com *ic) 232{ 233} 234 235void 236ieee80211_sysctl_detach(struct ieee80211com *ic) 237{ 238} 239 240void 241ieee80211_sysctl_vattach(struct ieee80211vap *vap) 242{ 243 struct ifnet *ifp = vap->iv_ifp; 244 struct sysctl_ctx_list *ctx; 245 struct sysctl_oid *oid; 246 char num[14]; /* sufficient for 32 bits */ 247 248 ctx = (struct sysctl_ctx_list *) malloc(sizeof(struct sysctl_ctx_list), 249 M_DEVBUF, M_NOWAIT | M_ZERO); 250 if (ctx == NULL) { 251 if_printf(ifp, "%s: cannot allocate sysctl context!\n", 252 __func__); 253 return; 254 } 255 sysctl_ctx_init(ctx); 256 snprintf(num, sizeof(num), "%u", ifp->if_dunit); 257 oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan), 258 OID_AUTO, num, CTLFLAG_RD, NULL, ""); 259 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 260 "%parent", CTLFLAG_RD, vap->iv_ic, 0, 261 ieee80211_sysctl_parent, "A", "parent device"); 262 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 263 "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0, 264 "driver capabilities"); 265#ifdef IEEE80211_DEBUG 266 vap->iv_debug = ieee80211_debug; 267 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 268 "debug", CTLFLAG_RW, &vap->iv_debug, 0, 269 "control debugging printfs"); 270#endif 271 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 272 "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0, 273 "consecutive beacon misses before scanning"); 274 /* XXX inherit from tunables */ 275 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 276 "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0, 277 ieee80211_sysctl_inact, "I", 278 "station inactivity timeout (sec)"); 279 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 280 "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0, 281 ieee80211_sysctl_inact, "I", 282 "station inactivity probe timeout (sec)"); 283 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 284 "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0, 285 ieee80211_sysctl_inact, "I", 286 "station authentication timeout (sec)"); 287 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 288 "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0, 289 ieee80211_sysctl_inact, "I", 290 "station initial state timeout (sec)"); 291 if (vap->iv_htcaps & IEEE80211_HTC_HT) { 292 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 293 "ampdu_mintraffic_bk", CTLFLAG_RW, 294 &vap->iv_ampdu_mintraffic[WME_AC_BK], 0, 295 "BK traffic tx aggr threshold (pps)"); 296 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 297 "ampdu_mintraffic_be", CTLFLAG_RW, 298 &vap->iv_ampdu_mintraffic[WME_AC_BE], 0, 299 "BE traffic tx aggr threshold (pps)"); 300 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 301 "ampdu_mintraffic_vo", CTLFLAG_RW, 302 &vap->iv_ampdu_mintraffic[WME_AC_VO], 0, 303 "VO traffic tx aggr threshold (pps)"); 304 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 305 "ampdu_mintraffic_vi", CTLFLAG_RW, 306 &vap->iv_ampdu_mintraffic[WME_AC_VI], 0, 307 "VI traffic tx aggr threshold (pps)"); 308 } 309 if (vap->iv_caps & IEEE80211_C_DFS) { 310 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 311 "radar", CTLTYPE_INT | CTLFLAG_RW, vap->iv_ic, 0, 312 ieee80211_sysctl_radar, "I", "simulare radar event"); 313 } 314 vap->iv_sysctl = ctx; 315 vap->iv_oid = oid; 316} 317 318void 319ieee80211_sysctl_vdetach(struct ieee80211vap *vap) 320{ 321 322 if (vap->iv_sysctl != NULL) { 323 sysctl_ctx_free(vap->iv_sysctl); 324 free(vap->iv_sysctl, M_DEVBUF); 325 vap->iv_sysctl = NULL; 326 } 327} 328 329int 330ieee80211_node_dectestref(struct ieee80211_node *ni) 331{ 332 /* XXX need equivalent of atomic_dec_and_test */ 333 atomic_subtract_int(&ni->ni_refcnt, 1); 334 return atomic_cmpset_int(&ni->ni_refcnt, 0, 1); 335} 336 337void 338ieee80211_drain_ifq(struct ifqueue *ifq) 339{ 340 struct ieee80211_node *ni; 341 struct mbuf *m; 342 343 for (;;) { 344 IF_DEQUEUE(ifq, m); 345 if (m == NULL) 346 break; 347 348 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 349 KASSERT(ni != NULL, ("frame w/o node")); 350 ieee80211_free_node(ni); 351 m->m_pkthdr.rcvif = NULL; 352 353 m_freem(m); 354 } 355} 356 357void 358ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap) 359{ 360 struct ieee80211_node *ni; 361 struct mbuf *m, **mprev; 362 363 IF_LOCK(ifq); 364 mprev = &ifq->ifq_head; 365 while ((m = *mprev) != NULL) { 366 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 367 if (ni != NULL && ni->ni_vap == vap) { 368 *mprev = m->m_nextpkt; /* remove from list */ 369 ifq->ifq_len--; 370 371 m_freem(m); 372 ieee80211_free_node(ni); /* reclaim ref */ 373 } else 374 mprev = &m->m_nextpkt; 375 } 376 /* recalculate tail ptr */ 377 m = ifq->ifq_head; 378 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt) 379 ; 380 ifq->ifq_tail = m; 381 IF_UNLOCK(ifq); 382} 383 384/* 385 * As above, for mbufs allocated with m_gethdr/MGETHDR 386 * or initialized by M_COPY_PKTHDR. 387 */ 388#define MC_ALIGN(m, len) \ 389do { \ 390 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \ 391} while (/* CONSTCOND */ 0) 392 393/* 394 * Allocate and setup a management frame of the specified 395 * size. We return the mbuf and a pointer to the start 396 * of the contiguous data area that's been reserved based 397 * on the packet length. The data area is forced to 32-bit 398 * alignment and the buffer length to a multiple of 4 bytes. 399 * This is done mainly so beacon frames (that require this) 400 * can use this interface too. 401 */ 402struct mbuf * 403ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen) 404{ 405 struct mbuf *m; 406 u_int len; 407 408 /* 409 * NB: we know the mbuf routines will align the data area 410 * so we don't need to do anything special. 411 */ 412 len = roundup2(headroom + pktlen, 4); 413 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 414 if (len < MINCLSIZE) { 415 m = m_gethdr(M_NOWAIT, MT_DATA); 416 /* 417 * Align the data in case additional headers are added. 418 * This should only happen when a WEP header is added 419 * which only happens for shared key authentication mgt 420 * frames which all fit in MHLEN. 421 */ 422 if (m != NULL) 423 MH_ALIGN(m, len); 424 } else { 425 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 426 if (m != NULL) 427 MC_ALIGN(m, len); 428 } 429 if (m != NULL) { 430 m->m_data += headroom; 431 *frm = m->m_data; 432 } 433 return m; 434} 435 436int 437ieee80211_add_callback(struct mbuf *m, 438 void (*func)(struct ieee80211_node *, void *, int), void *arg) 439{ 440 struct m_tag *mtag; 441 struct ieee80211_cb *cb; 442 443 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, 444 sizeof(struct ieee80211_cb), M_NOWAIT); 445 if (mtag == NULL) 446 return 0; 447 448 cb = (struct ieee80211_cb *)(mtag+1); 449 cb->func = func; 450 cb->arg = arg; 451 m_tag_prepend(m, mtag); 452 m->m_flags |= M_TXCB; 453 return 1; 454} 455 456void 457ieee80211_process_callback(struct ieee80211_node *ni, 458 struct mbuf *m, int status) 459{ 460 struct m_tag *mtag; 461 462 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL); 463 if (mtag != NULL) { 464 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1); 465 cb->func(ni, cb->arg, status); 466 } 467} 468 469#include <sys/libkern.h> 470 471void 472get_random_bytes(void *p, size_t n) 473{ 474 uint8_t *dp = p; 475 476 while (n > 0) { 477 uint32_t v = arc4random(); 478 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n; 479 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n); 480 dp += sizeof(uint32_t), n -= nb; 481 } 482} 483 484/* 485 * Helper function for events that pass just a single mac address. 486 */ 487static void 488notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN]) 489{ 490 struct ieee80211_join_event iev; 491 492 memset(&iev, 0, sizeof(iev)); 493 IEEE80211_ADDR_COPY(iev.iev_addr, mac); 494 rt_ieee80211msg(ifp, op, &iev, sizeof(iev)); 495} 496 497void 498ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc) 499{ 500 struct ieee80211vap *vap = ni->ni_vap; 501 struct ifnet *ifp = vap->iv_ifp; 502 503 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join", 504 (ni == vap->iv_bss) ? "bss " : ""); 505 506 if (ni == vap->iv_bss) { 507 notify_macaddr(ifp, newassoc ? 508 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid); 509 if_link_state_change(ifp, LINK_STATE_UP); 510 } else { 511 notify_macaddr(ifp, newassoc ? 512 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr); 513 } 514} 515 516void 517ieee80211_notify_node_leave(struct ieee80211_node *ni) 518{ 519 struct ieee80211vap *vap = ni->ni_vap; 520 struct ifnet *ifp = vap->iv_ifp; 521 522 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave", 523 (ni == vap->iv_bss) ? "bss " : ""); 524 525 if (ni == vap->iv_bss) { 526 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 527 if_link_state_change(ifp, LINK_STATE_DOWN); 528 } else { 529 /* fire off wireless event station leaving */ 530 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr); 531 } 532} 533 534void 535ieee80211_notify_scan_done(struct ieee80211vap *vap) 536{ 537 struct ifnet *ifp = vap->iv_ifp; 538 539 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done"); 540 541 /* dispatch wireless event indicating scan completed */ 542 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 543} 544 545void 546ieee80211_notify_replay_failure(struct ieee80211vap *vap, 547 const struct ieee80211_frame *wh, const struct ieee80211_key *k, 548 u_int64_t rsc) 549{ 550 struct ifnet *ifp = vap->iv_ifp; 551 552 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 553 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>", 554 k->wk_cipher->ic_name, (intmax_t) rsc, 555 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID], 556 k->wk_keyix, k->wk_rxkeyix); 557 558 if (ifp != NULL) { /* NB: for cipher test modules */ 559 struct ieee80211_replay_event iev; 560 561 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 562 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 563 iev.iev_cipher = k->wk_cipher->ic_cipher; 564 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 565 iev.iev_keyix = k->wk_rxkeyix; 566 else 567 iev.iev_keyix = k->wk_keyix; 568 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */ 569 iev.iev_rsc = rsc; 570 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 571 } 572} 573 574void 575ieee80211_notify_michael_failure(struct ieee80211vap *vap, 576 const struct ieee80211_frame *wh, u_int keyix) 577{ 578 struct ifnet *ifp = vap->iv_ifp; 579 580 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 581 "michael MIC verification failed <keyix %u>", keyix); 582 vap->iv_stats.is_rx_tkipmic++; 583 584 if (ifp != NULL) { /* NB: for cipher test modules */ 585 struct ieee80211_michael_event iev; 586 587 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 588 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 589 iev.iev_cipher = IEEE80211_CIPHER_TKIP; 590 iev.iev_keyix = keyix; 591 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 592 } 593} 594 595void 596ieee80211_notify_wds_discover(struct ieee80211_node *ni) 597{ 598 struct ieee80211vap *vap = ni->ni_vap; 599 struct ifnet *ifp = vap->iv_ifp; 600 601 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr); 602} 603 604void 605ieee80211_notify_csa(struct ieee80211com *ic, 606 const struct ieee80211_channel *c, int mode, int count) 607{ 608 struct ifnet *ifp = ic->ic_ifp; 609 struct ieee80211_csa_event iev; 610 611 memset(&iev, 0, sizeof(iev)); 612 iev.iev_flags = c->ic_flags; 613 iev.iev_freq = c->ic_freq; 614 iev.iev_ieee = c->ic_ieee; 615 iev.iev_mode = mode; 616 iev.iev_count = count; 617 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev)); 618} 619 620void 621ieee80211_notify_radar(struct ieee80211com *ic, 622 const struct ieee80211_channel *c) 623{ 624 struct ifnet *ifp = ic->ic_ifp; 625 struct ieee80211_radar_event iev; 626 627 memset(&iev, 0, sizeof(iev)); 628 iev.iev_flags = c->ic_flags; 629 iev.iev_freq = c->ic_freq; 630 iev.iev_ieee = c->ic_ieee; 631 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev)); 632} 633 634void 635ieee80211_notify_cac(struct ieee80211com *ic, 636 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type) 637{ 638 struct ifnet *ifp = ic->ic_ifp; 639 struct ieee80211_cac_event iev; 640 641 memset(&iev, 0, sizeof(iev)); 642 iev.iev_flags = c->ic_flags; 643 iev.iev_freq = c->ic_freq; 644 iev.iev_ieee = c->ic_ieee; 645 iev.iev_type = type; 646 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev)); 647} 648 649void 650ieee80211_notify_node_deauth(struct ieee80211_node *ni) 651{ 652 struct ieee80211vap *vap = ni->ni_vap; 653 struct ifnet *ifp = vap->iv_ifp; 654 655 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth"); 656 657 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr); 658} 659 660void 661ieee80211_notify_node_auth(struct ieee80211_node *ni) 662{ 663 struct ieee80211vap *vap = ni->ni_vap; 664 struct ifnet *ifp = vap->iv_ifp; 665 666 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth"); 667 668 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr); 669} 670 671void 672ieee80211_notify_country(struct ieee80211vap *vap, 673 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2]) 674{ 675 struct ifnet *ifp = vap->iv_ifp; 676 struct ieee80211_country_event iev; 677 678 memset(&iev, 0, sizeof(iev)); 679 IEEE80211_ADDR_COPY(iev.iev_addr, bssid); 680 iev.iev_cc[0] = cc[0]; 681 iev.iev_cc[1] = cc[1]; 682 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev)); 683} 684 685void 686ieee80211_notify_radio(struct ieee80211com *ic, int state) 687{ 688 struct ifnet *ifp = ic->ic_ifp; 689 struct ieee80211_radio_event iev; 690 691 memset(&iev, 0, sizeof(iev)); 692 iev.iev_state = state; 693 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev)); 694} 695 696void 697ieee80211_load_module(const char *modname) 698{ 699 700#ifdef notyet 701 (void)kern_kldload(curthread, modname, NULL); 702#else 703 printf("%s: load the %s module by hand for now.\n", __func__, modname); 704#endif 705} 706 707/* 708 * Module glue. 709 * 710 * NB: the module name is "wlan" for compatibility with NetBSD. 711 */ 712static int 713wlan_modevent(module_t mod, int type, void *unused) 714{ 715 switch (type) { 716 case MOD_LOAD: 717 if (bootverbose) 718 printf("wlan: <802.11 Link Layer>\n"); 719 if_clone_attach(&wlan_cloner); 720 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free); 721 return 0; 722 case MOD_UNLOAD: 723 if_deregister_com_alloc(IFT_IEEE80211); 724 if_clone_detach(&wlan_cloner); 725 return 0; 726 } 727 return EINVAL; 728} 729 730static moduledata_t wlan_mod = { 731 "wlan", 732 wlan_modevent, 733 0 734}; 735DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 736MODULE_VERSION(wlan, 1); 737MODULE_DEPEND(wlan, ether, 1, 1, 1); 738