1 /*- 2 * Copyright (c) 2003-2008 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("$FreeBSD$"); 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_clone.h> 47 #include <net/if_media.h> 48 #include <net/if_types.h> 49 #include <net/ethernet.h> 50 #include <net/route.h> 51 52 #include <net80211/ieee80211_var.h> 53 54 SYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters"); 55 56 #ifdef IEEE80211_DEBUG 57 int ieee80211_debug = 0; 58 SYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug, 59 0, "debugging printfs"); 60 #endif 61 extern int ieee80211_recv_bar_ena; 62 SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 63 0, "BAR frame processing (ena/dis)"); 64 extern int ieee80211_nol_timeout; 65 SYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW, 66 &ieee80211_nol_timeout, 0, "NOL timeout (secs)"); 67 extern int ieee80211_cac_timeout; 68 SYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW, 69 &ieee80211_cac_timeout, 0, "CAC timeout (secs)"); 70 71 MALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state"); 72 73 /* 74 * Allocate/free com structure in conjunction with ifnet; 75 * these routines are registered with if_register_com_alloc 76 * below and are called automatically by the ifnet code 77 * when the ifnet of the parent device is created. 78 */ 79 static void * 80 wlan_alloc(u_char type, struct ifnet *ifp) 81 { 82 struct ieee80211com *ic; 83 84 ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO); 85 ic->ic_ifp = ifp; 86 87 return (ic); 88 } 89 90 static void 91 wlan_free(void *ic, u_char type) 92 { 93 free(ic, M_80211_COM); 94 } 95 96 static int 97 wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params) 98 { 99 struct ieee80211_clone_params cp; 100 struct ieee80211vap *vap; 101 struct ieee80211com *ic; 102 struct ifnet *ifp; 103 int error; 104 105 error = copyin(params, &cp, sizeof(cp)); 106 if (error) 107 return error; 108 ifp = ifunit(cp.icp_parent); 109 if (ifp == NULL) 110 return ENXIO; 111 if (ifp->if_type != IFT_IEEE80211) { 112 if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__); 113 return EINVAL; 114 } 115 ic = ifp->if_l2com; 116 vap = ic->ic_vap_create(ic, ifc->ifc_name, unit, 117 cp.icp_opmode, cp.icp_flags, cp.icp_bssid, 118 cp.icp_flags & IEEE80211_CLONE_MACADDR ? 119 cp.icp_macaddr : ic->ic_myaddr); 120 return (vap == NULL ? EIO : 0); 121 } 122 123 static void 124 wlan_clone_destroy(struct ifnet *ifp) 125 { 126 struct ieee80211vap *vap = ifp->if_softc; 127 struct ieee80211com *ic = vap->iv_ic; 128 129 ic->ic_vap_delete(vap); 130 } 131 IFC_SIMPLE_DECLARE(wlan, 0); 132 133 void 134 ieee80211_vap_destroy(struct ieee80211vap *vap) 135 { 136 ifc_simple_destroy(&wlan_cloner, vap->iv_ifp); 137 } 138 139 static int 140 ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS) 141 { 142 int msecs = ticks_to_msecs(*(int *)arg1); 143 int error, t; 144 145 error = sysctl_handle_int(oidp, &msecs, 0, req); 146 if (error || !req->newptr) 147 return error; 148 t = msecs_to_ticks(msecs); 149 *(int *)arg1 = (t < 1) ? 1 : t; 150 return 0; 151 } 152 153 #ifdef IEEE80211_AMPDU_AGE 154 extern int ieee80211_ampdu_age; 155 SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW, 156 &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I", 157 "AMPDU max reorder age (ms)"); 158 #endif 159 extern int ieee80211_addba_timeout; 160 SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW, 161 &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I", 162 "ADDBA request timeout (ms)"); 163 extern int ieee80211_addba_backoff; 164 SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW, 165 &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I", 166 "ADDBA request backoff (ms)"); 167 extern int ieee80211_addba_maxtries; 168 SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW, 169 &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff"); 170 171 static int 172 ieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS) 173 { 174 int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT; 175 int error; 176 177 error = sysctl_handle_int(oidp, &inact, 0, req); 178 if (error || !req->newptr) 179 return error; 180 *(int *)arg1 = inact / IEEE80211_INACT_WAIT; 181 return 0; 182 } 183 184 static int 185 ieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS) 186 { 187 struct ieee80211com *ic = arg1; 188 const char *name = ic->ic_ifp->if_xname; 189 190 return SYSCTL_OUT(req, name, strlen(name)); 191 } 192 193 void 194 ieee80211_sysctl_attach(struct ieee80211com *ic) 195 { 196 } 197 198 void 199 ieee80211_sysctl_detach(struct ieee80211com *ic) 200 { 201 } 202 203 void 204 ieee80211_sysctl_vattach(struct ieee80211vap *vap) 205 { 206 struct ifnet *ifp = vap->iv_ifp; 207 struct sysctl_ctx_list *ctx; 208 struct sysctl_oid *oid; 209 char num[14]; /* sufficient for 32 bits */ 210 211 MALLOC(ctx, struct sysctl_ctx_list *, sizeof(struct sysctl_ctx_list), 212 M_DEVBUF, M_NOWAIT | M_ZERO); 213 if (ctx == NULL) { 214 if_printf(ifp, "%s: cannot allocate sysctl context!\n", 215 __func__); 216 return; 217 } 218 sysctl_ctx_init(ctx); 219 snprintf(num, sizeof(num), "%u", ifp->if_dunit); 220 oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan), 221 OID_AUTO, num, CTLFLAG_RD, NULL, ""); 222 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 223 "%parent", CTLFLAG_RD, vap->iv_ic, 0, 224 ieee80211_sysctl_parent, "A", "parent device"); 225 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 226 "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0, 227 "driver capabilities"); 228 #ifdef IEEE80211_DEBUG 229 vap->iv_debug = ieee80211_debug; 230 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 231 "debug", CTLFLAG_RW, &vap->iv_debug, 0, 232 "control debugging printfs"); 233 #endif 234 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 235 "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0, 236 "consecutive beacon misses before scanning"); 237 /* XXX inherit from tunables */ 238 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 239 "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0, 240 ieee80211_sysctl_inact, "I", 241 "station inactivity timeout (sec)"); 242 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 243 "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0, 244 ieee80211_sysctl_inact, "I", 245 "station inactivity probe timeout (sec)"); 246 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 247 "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0, 248 ieee80211_sysctl_inact, "I", 249 "station authentication timeout (sec)"); 250 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 251 "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0, 252 ieee80211_sysctl_inact, "I", 253 "station initial state timeout (sec)"); 254 if (vap->iv_htcaps & IEEE80211_HTC_HT) { 255 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 256 "ampdu_mintraffic_bk", CTLFLAG_RW, 257 &vap->iv_ampdu_mintraffic[WME_AC_BK], 0, 258 "BK traffic tx aggr threshold (pps)"); 259 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 260 "ampdu_mintraffic_be", CTLFLAG_RW, 261 &vap->iv_ampdu_mintraffic[WME_AC_BE], 0, 262 "BE traffic tx aggr threshold (pps)"); 263 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 264 "ampdu_mintraffic_vo", CTLFLAG_RW, 265 &vap->iv_ampdu_mintraffic[WME_AC_VO], 0, 266 "VO traffic tx aggr threshold (pps)"); 267 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 268 "ampdu_mintraffic_vi", CTLFLAG_RW, 269 &vap->iv_ampdu_mintraffic[WME_AC_VI], 0, 270 "VI traffic tx aggr threshold (pps)"); 271 } 272 vap->iv_sysctl = ctx; 273 vap->iv_oid = oid; 274 } 275 276 void 277 ieee80211_sysctl_vdetach(struct ieee80211vap *vap) 278 { 279 280 if (vap->iv_sysctl != NULL) { 281 sysctl_ctx_free(vap->iv_sysctl); 282 FREE(vap->iv_sysctl, M_DEVBUF); 283 vap->iv_sysctl = NULL; 284 } 285 } 286 287 int 288 ieee80211_node_dectestref(struct ieee80211_node *ni) 289 { 290 /* XXX need equivalent of atomic_dec_and_test */ 291 atomic_subtract_int(&ni->ni_refcnt, 1); 292 return atomic_cmpset_int(&ni->ni_refcnt, 0, 1); 293 } 294 295 void 296 ieee80211_drain_ifq(struct ifqueue *ifq) 297 { 298 struct ieee80211_node *ni; 299 struct mbuf *m; 300 301 for (;;) { 302 IF_DEQUEUE(ifq, m); 303 if (m == NULL) 304 break; 305 306 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 307 KASSERT(ni != NULL, ("frame w/o node")); 308 ieee80211_free_node(ni); 309 m->m_pkthdr.rcvif = NULL; 310 311 m_freem(m); 312 } 313 } 314 315 void 316 ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap) 317 { 318 struct ieee80211_node *ni; 319 struct mbuf *m, **mprev; 320 321 IF_LOCK(ifq); 322 mprev = &ifq->ifq_head; 323 while ((m = *mprev) != NULL) { 324 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 325 if (ni != NULL && ni->ni_vap == vap) { 326 *mprev = m->m_nextpkt; /* remove from list */ 327 ifq->ifq_len--; 328 329 m_freem(m); 330 ieee80211_free_node(ni); /* reclaim ref */ 331 } else 332 mprev = &m->m_nextpkt; 333 } 334 /* recalculate tail ptr */ 335 m = ifq->ifq_head; 336 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt) 337 ; 338 ifq->ifq_tail = m; 339 IF_UNLOCK(ifq); 340 } 341 342 /* 343 * As above, for mbufs allocated with m_gethdr/MGETHDR 344 * or initialized by M_COPY_PKTHDR. 345 */ 346 #define MC_ALIGN(m, len) \ 347 do { \ 348 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \ 349 } while (/* CONSTCOND */ 0) 350 351 /* 352 * Allocate and setup a management frame of the specified 353 * size. We return the mbuf and a pointer to the start 354 * of the contiguous data area that's been reserved based 355 * on the packet length. The data area is forced to 32-bit 356 * alignment and the buffer length to a multiple of 4 bytes. 357 * This is done mainly so beacon frames (that require this) 358 * can use this interface too. 359 */ 360 struct mbuf * 361 ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen) 362 { 363 struct mbuf *m; 364 u_int len; 365 366 /* 367 * NB: we know the mbuf routines will align the data area 368 * so we don't need to do anything special. 369 */ 370 len = roundup2(headroom + pktlen, 4); 371 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 372 if (len < MINCLSIZE) { 373 m = m_gethdr(M_NOWAIT, MT_DATA); 374 /* 375 * Align the data in case additional headers are added. 376 * This should only happen when a WEP header is added 377 * which only happens for shared key authentication mgt 378 * frames which all fit in MHLEN. 379 */ 380 if (m != NULL) 381 MH_ALIGN(m, len); 382 } else { 383 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 384 if (m != NULL) 385 MC_ALIGN(m, len); 386 } 387 if (m != NULL) { 388 m->m_data += headroom; 389 *frm = m->m_data; 390 } 391 return m; 392 } 393 394 int 395 ieee80211_add_callback(struct mbuf *m, 396 void (*func)(struct ieee80211_node *, void *, int), void *arg) 397 { 398 struct m_tag *mtag; 399 struct ieee80211_cb *cb; 400 401 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, 402 sizeof(struct ieee80211_cb), M_NOWAIT); 403 if (mtag == NULL) 404 return 0; 405 406 cb = (struct ieee80211_cb *)(mtag+1); 407 cb->func = func; 408 cb->arg = arg; 409 m_tag_prepend(m, mtag); 410 m->m_flags |= M_TXCB; 411 return 1; 412 } 413 414 void 415 ieee80211_process_callback(struct ieee80211_node *ni, 416 struct mbuf *m, int status) 417 { 418 struct m_tag *mtag; 419 420 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL); 421 if (mtag != NULL) { 422 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1); 423 cb->func(ni, cb->arg, status); 424 } 425 } 426 427 #include <sys/libkern.h> 428 429 void 430 get_random_bytes(void *p, size_t n) 431 { 432 uint8_t *dp = p; 433 434 while (n > 0) { 435 uint32_t v = arc4random(); 436 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n; 437 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n); 438 dp += sizeof(uint32_t), n -= nb; 439 } 440 } 441 442 /* 443 * Helper function for events that pass just a single mac address. 444 */ 445 static void 446 notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN]) 447 { 448 struct ieee80211_join_event iev; 449 450 memset(&iev, 0, sizeof(iev)); 451 IEEE80211_ADDR_COPY(iev.iev_addr, mac); 452 rt_ieee80211msg(ifp, op, &iev, sizeof(iev)); 453 } 454 455 void 456 ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc) 457 { 458 struct ieee80211vap *vap = ni->ni_vap; 459 struct ifnet *ifp = vap->iv_ifp; 460 461 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join", 462 (ni == vap->iv_bss) ? "bss " : ""); 463 464 if (ni == vap->iv_bss) { 465 notify_macaddr(ifp, newassoc ? 466 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid); 467 if_link_state_change(ifp, LINK_STATE_UP); 468 } else { 469 notify_macaddr(ifp, newassoc ? 470 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr); 471 } 472 } 473 474 void 475 ieee80211_notify_node_leave(struct ieee80211_node *ni) 476 { 477 struct ieee80211vap *vap = ni->ni_vap; 478 struct ifnet *ifp = vap->iv_ifp; 479 480 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave", 481 (ni == vap->iv_bss) ? "bss " : ""); 482 483 if (ni == vap->iv_bss) { 484 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 485 if_link_state_change(ifp, LINK_STATE_DOWN); 486 } else { 487 /* fire off wireless event station leaving */ 488 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr); 489 } 490 } 491 492 void 493 ieee80211_notify_scan_done(struct ieee80211vap *vap) 494 { 495 struct ifnet *ifp = vap->iv_ifp; 496 497 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done"); 498 499 /* dispatch wireless event indicating scan completed */ 500 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 501 } 502 503 void 504 ieee80211_notify_replay_failure(struct ieee80211vap *vap, 505 const struct ieee80211_frame *wh, const struct ieee80211_key *k, 506 u_int64_t rsc) 507 { 508 struct ifnet *ifp = vap->iv_ifp; 509 510 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 511 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>", 512 k->wk_cipher->ic_name, (intmax_t) rsc, 513 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID], 514 k->wk_keyix, k->wk_rxkeyix); 515 516 if (ifp != NULL) { /* NB: for cipher test modules */ 517 struct ieee80211_replay_event iev; 518 519 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 520 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 521 iev.iev_cipher = k->wk_cipher->ic_cipher; 522 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 523 iev.iev_keyix = k->wk_rxkeyix; 524 else 525 iev.iev_keyix = k->wk_keyix; 526 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */ 527 iev.iev_rsc = rsc; 528 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 529 } 530 } 531 532 void 533 ieee80211_notify_michael_failure(struct ieee80211vap *vap, 534 const struct ieee80211_frame *wh, u_int keyix) 535 { 536 struct ifnet *ifp = vap->iv_ifp; 537 538 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 539 "michael MIC verification failed <keyix %u>", keyix); 540 vap->iv_stats.is_rx_tkipmic++; 541 542 if (ifp != NULL) { /* NB: for cipher test modules */ 543 struct ieee80211_michael_event iev; 544 545 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 546 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 547 iev.iev_cipher = IEEE80211_CIPHER_TKIP; 548 iev.iev_keyix = keyix; 549 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 550 } 551 } 552 553 void 554 ieee80211_notify_wds_discover(struct ieee80211_node *ni) 555 { 556 struct ieee80211vap *vap = ni->ni_vap; 557 struct ifnet *ifp = vap->iv_ifp; 558 559 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr); 560 } 561 562 void 563 ieee80211_notify_csa(struct ieee80211com *ic, 564 const struct ieee80211_channel *c, int mode, int count) 565 { 566 struct ifnet *ifp = ic->ic_ifp; 567 struct ieee80211_csa_event iev; 568 569 memset(&iev, 0, sizeof(iev)); 570 iev.iev_flags = c->ic_flags; 571 iev.iev_freq = c->ic_freq; 572 iev.iev_ieee = c->ic_ieee; 573 iev.iev_mode = mode; 574 iev.iev_count = count; 575 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev)); 576 } 577 578 void 579 ieee80211_notify_radar(struct ieee80211com *ic, 580 const struct ieee80211_channel *c) 581 { 582 struct ifnet *ifp = ic->ic_ifp; 583 struct ieee80211_radar_event iev; 584 585 memset(&iev, 0, sizeof(iev)); 586 iev.iev_flags = c->ic_flags; 587 iev.iev_freq = c->ic_freq; 588 iev.iev_ieee = c->ic_ieee; 589 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev)); 590 } 591 592 void 593 ieee80211_notify_cac(struct ieee80211com *ic, 594 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type) 595 { 596 struct ifnet *ifp = ic->ic_ifp; 597 struct ieee80211_cac_event iev; 598 599 memset(&iev, 0, sizeof(iev)); 600 iev.iev_flags = c->ic_flags; 601 iev.iev_freq = c->ic_freq; 602 iev.iev_ieee = c->ic_ieee; 603 iev.iev_type = type; 604 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev)); 605 } 606 607 void 608 ieee80211_notify_node_deauth(struct ieee80211_node *ni) 609 { 610 struct ieee80211vap *vap = ni->ni_vap; 611 struct ifnet *ifp = vap->iv_ifp; 612 613 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth"); 614 615 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr); 616 } 617 618 void 619 ieee80211_notify_node_auth(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 auth"); 625 626 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr); 627 } 628 629 void 630 ieee80211_notify_country(struct ieee80211vap *vap, 631 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2]) 632 { 633 struct ifnet *ifp = vap->iv_ifp; 634 struct ieee80211_country_event iev; 635 636 memset(&iev, 0, sizeof(iev)); 637 IEEE80211_ADDR_COPY(iev.iev_addr, bssid); 638 iev.iev_cc[0] = cc[0]; 639 iev.iev_cc[1] = cc[1]; 640 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev)); 641 } 642 643 void 644 ieee80211_notify_radio(struct ieee80211com *ic, int state) 645 { 646 struct ifnet *ifp = ic->ic_ifp; 647 struct ieee80211_radio_event iev; 648 649 memset(&iev, 0, sizeof(iev)); 650 iev.iev_state = state; 651 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev)); 652 } 653 654 void 655 ieee80211_load_module(const char *modname) 656 { 657 658 #ifdef notyet 659 (void)kern_kldload(curthread, modname, NULL); 660 #else 661 printf("%s: load the %s module by hand for now.\n", __func__, modname); 662 #endif 663 } 664 665 /* 666 * Module glue. 667 * 668 * NB: the module name is "wlan" for compatibility with NetBSD. 669 */ 670 static int 671 wlan_modevent(module_t mod, int type, void *unused) 672 { 673 switch (type) { 674 case MOD_LOAD: 675 if (bootverbose) 676 printf("wlan: <802.11 Link Layer>\n"); 677 if_clone_attach(&wlan_cloner); 678 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free); 679 return 0; 680 case MOD_UNLOAD: 681 if_deregister_com_alloc(IFT_IEEE80211); 682 if_clone_detach(&wlan_cloner); 683 return 0; 684 } 685 return EINVAL; 686 } 687 688 static moduledata_t wlan_mod = { 689 "wlan", 690 wlan_modevent, 691 0 692 }; 693 DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 694 MODULE_VERSION(wlan, 1); 695 MODULE_DEPEND(wlan, ether, 1, 1, 1); 696