ieee80211_freebsd.c revision 190579
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 190579 2009-03-30 21:53:27Z 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#ifdef IEEE80211_SUPPORT_SUPERG 193extern int ieee80211_ffppsmin; 194SYSCTL_INT(_net_wlan, OID_AUTO, ffppsmin, CTLFLAG_RW, 195 &ieee80211_ffppsmin, 0, "min packet rate before fast-frame staging"); 196extern int ieee80211_ffagemax; 197SYSCTL_PROC(_net_wlan, OID_AUTO, ffagemax, CTLFLAG_RW, 198 &ieee80211_ffagemax, 0, ieee80211_sysctl_msecs_ticks, "I", 199 "max hold time for fast-frame staging (ms)"); 200#endif /* IEEE80211_SUPPORT_SUPERG */ 201 202static int 203ieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS) 204{ 205 int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT; 206 int error; 207 208 error = sysctl_handle_int(oidp, &inact, 0, req); 209 if (error || !req->newptr) 210 return error; 211 *(int *)arg1 = inact / IEEE80211_INACT_WAIT; 212 return 0; 213} 214 215static int 216ieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS) 217{ 218 struct ieee80211com *ic = arg1; 219 const char *name = ic->ic_ifp->if_xname; 220 221 return SYSCTL_OUT(req, name, strlen(name)); 222} 223 224static int 225ieee80211_sysctl_radar(SYSCTL_HANDLER_ARGS) 226{ 227 struct ieee80211com *ic = arg1; 228 int t = 0, error; 229 230 error = sysctl_handle_int(oidp, &t, 0, req); 231 if (error || !req->newptr) 232 return error; 233 IEEE80211_LOCK(ic); 234 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 235 IEEE80211_UNLOCK(ic); 236 return 0; 237} 238 239void 240ieee80211_sysctl_attach(struct ieee80211com *ic) 241{ 242} 243 244void 245ieee80211_sysctl_detach(struct ieee80211com *ic) 246{ 247} 248 249void 250ieee80211_sysctl_vattach(struct ieee80211vap *vap) 251{ 252 struct ifnet *ifp = vap->iv_ifp; 253 struct sysctl_ctx_list *ctx; 254 struct sysctl_oid *oid; 255 char num[14]; /* sufficient for 32 bits */ 256 257 ctx = (struct sysctl_ctx_list *) malloc(sizeof(struct sysctl_ctx_list), 258 M_DEVBUF, M_NOWAIT | M_ZERO); 259 if (ctx == NULL) { 260 if_printf(ifp, "%s: cannot allocate sysctl context!\n", 261 __func__); 262 return; 263 } 264 sysctl_ctx_init(ctx); 265 snprintf(num, sizeof(num), "%u", ifp->if_dunit); 266 oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan), 267 OID_AUTO, num, CTLFLAG_RD, NULL, ""); 268 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 269 "%parent", CTLFLAG_RD, vap->iv_ic, 0, 270 ieee80211_sysctl_parent, "A", "parent device"); 271 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 272 "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0, 273 "driver capabilities"); 274#ifdef IEEE80211_DEBUG 275 vap->iv_debug = ieee80211_debug; 276 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 277 "debug", CTLFLAG_RW, &vap->iv_debug, 0, 278 "control debugging printfs"); 279#endif 280 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 281 "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0, 282 "consecutive beacon misses before scanning"); 283 /* XXX inherit from tunables */ 284 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 285 "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0, 286 ieee80211_sysctl_inact, "I", 287 "station inactivity timeout (sec)"); 288 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 289 "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0, 290 ieee80211_sysctl_inact, "I", 291 "station inactivity probe timeout (sec)"); 292 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 293 "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0, 294 ieee80211_sysctl_inact, "I", 295 "station authentication timeout (sec)"); 296 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 297 "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0, 298 ieee80211_sysctl_inact, "I", 299 "station initial state timeout (sec)"); 300 if (vap->iv_htcaps & IEEE80211_HTC_HT) { 301 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 302 "ampdu_mintraffic_bk", CTLFLAG_RW, 303 &vap->iv_ampdu_mintraffic[WME_AC_BK], 0, 304 "BK traffic tx aggr threshold (pps)"); 305 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 306 "ampdu_mintraffic_be", CTLFLAG_RW, 307 &vap->iv_ampdu_mintraffic[WME_AC_BE], 0, 308 "BE traffic tx aggr threshold (pps)"); 309 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 310 "ampdu_mintraffic_vo", CTLFLAG_RW, 311 &vap->iv_ampdu_mintraffic[WME_AC_VO], 0, 312 "VO traffic tx aggr threshold (pps)"); 313 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 314 "ampdu_mintraffic_vi", CTLFLAG_RW, 315 &vap->iv_ampdu_mintraffic[WME_AC_VI], 0, 316 "VI traffic tx aggr threshold (pps)"); 317 } 318 if (vap->iv_caps & IEEE80211_C_DFS) { 319 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 320 "radar", CTLTYPE_INT | CTLFLAG_RW, vap->iv_ic, 0, 321 ieee80211_sysctl_radar, "I", "simulare radar event"); 322 } 323 vap->iv_sysctl = ctx; 324 vap->iv_oid = oid; 325} 326 327void 328ieee80211_sysctl_vdetach(struct ieee80211vap *vap) 329{ 330 331 if (vap->iv_sysctl != NULL) { 332 sysctl_ctx_free(vap->iv_sysctl); 333 free(vap->iv_sysctl, M_DEVBUF); 334 vap->iv_sysctl = NULL; 335 } 336} 337 338int 339ieee80211_node_dectestref(struct ieee80211_node *ni) 340{ 341 /* XXX need equivalent of atomic_dec_and_test */ 342 atomic_subtract_int(&ni->ni_refcnt, 1); 343 return atomic_cmpset_int(&ni->ni_refcnt, 0, 1); 344} 345 346void 347ieee80211_drain_ifq(struct ifqueue *ifq) 348{ 349 struct ieee80211_node *ni; 350 struct mbuf *m; 351 352 for (;;) { 353 IF_DEQUEUE(ifq, m); 354 if (m == NULL) 355 break; 356 357 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 358 KASSERT(ni != NULL, ("frame w/o node")); 359 ieee80211_free_node(ni); 360 m->m_pkthdr.rcvif = NULL; 361 362 m_freem(m); 363 } 364} 365 366void 367ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap) 368{ 369 struct ieee80211_node *ni; 370 struct mbuf *m, **mprev; 371 372 IF_LOCK(ifq); 373 mprev = &ifq->ifq_head; 374 while ((m = *mprev) != NULL) { 375 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 376 if (ni != NULL && ni->ni_vap == vap) { 377 *mprev = m->m_nextpkt; /* remove from list */ 378 ifq->ifq_len--; 379 380 m_freem(m); 381 ieee80211_free_node(ni); /* reclaim ref */ 382 } else 383 mprev = &m->m_nextpkt; 384 } 385 /* recalculate tail ptr */ 386 m = ifq->ifq_head; 387 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt) 388 ; 389 ifq->ifq_tail = m; 390 IF_UNLOCK(ifq); 391} 392 393/* 394 * As above, for mbufs allocated with m_gethdr/MGETHDR 395 * or initialized by M_COPY_PKTHDR. 396 */ 397#define MC_ALIGN(m, len) \ 398do { \ 399 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \ 400} while (/* CONSTCOND */ 0) 401 402/* 403 * Allocate and setup a management frame of the specified 404 * size. We return the mbuf and a pointer to the start 405 * of the contiguous data area that's been reserved based 406 * on the packet length. The data area is forced to 32-bit 407 * alignment and the buffer length to a multiple of 4 bytes. 408 * This is done mainly so beacon frames (that require this) 409 * can use this interface too. 410 */ 411struct mbuf * 412ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen) 413{ 414 struct mbuf *m; 415 u_int len; 416 417 /* 418 * NB: we know the mbuf routines will align the data area 419 * so we don't need to do anything special. 420 */ 421 len = roundup2(headroom + pktlen, 4); 422 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 423 if (len < MINCLSIZE) { 424 m = m_gethdr(M_NOWAIT, MT_DATA); 425 /* 426 * Align the data in case additional headers are added. 427 * This should only happen when a WEP header is added 428 * which only happens for shared key authentication mgt 429 * frames which all fit in MHLEN. 430 */ 431 if (m != NULL) 432 MH_ALIGN(m, len); 433 } else { 434 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 435 if (m != NULL) 436 MC_ALIGN(m, len); 437 } 438 if (m != NULL) { 439 m->m_data += headroom; 440 *frm = m->m_data; 441 } 442 return m; 443} 444 445int 446ieee80211_add_callback(struct mbuf *m, 447 void (*func)(struct ieee80211_node *, void *, int), void *arg) 448{ 449 struct m_tag *mtag; 450 struct ieee80211_cb *cb; 451 452 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, 453 sizeof(struct ieee80211_cb), M_NOWAIT); 454 if (mtag == NULL) 455 return 0; 456 457 cb = (struct ieee80211_cb *)(mtag+1); 458 cb->func = func; 459 cb->arg = arg; 460 m_tag_prepend(m, mtag); 461 m->m_flags |= M_TXCB; 462 return 1; 463} 464 465void 466ieee80211_process_callback(struct ieee80211_node *ni, 467 struct mbuf *m, int status) 468{ 469 struct m_tag *mtag; 470 471 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL); 472 if (mtag != NULL) { 473 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1); 474 cb->func(ni, cb->arg, status); 475 } 476} 477 478#include <sys/libkern.h> 479 480void 481get_random_bytes(void *p, size_t n) 482{ 483 uint8_t *dp = p; 484 485 while (n > 0) { 486 uint32_t v = arc4random(); 487 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n; 488 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n); 489 dp += sizeof(uint32_t), n -= nb; 490 } 491} 492 493/* 494 * Helper function for events that pass just a single mac address. 495 */ 496static void 497notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN]) 498{ 499 struct ieee80211_join_event iev; 500 501 memset(&iev, 0, sizeof(iev)); 502 IEEE80211_ADDR_COPY(iev.iev_addr, mac); 503 rt_ieee80211msg(ifp, op, &iev, sizeof(iev)); 504} 505 506void 507ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc) 508{ 509 struct ieee80211vap *vap = ni->ni_vap; 510 struct ifnet *ifp = vap->iv_ifp; 511 512 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join", 513 (ni == vap->iv_bss) ? "bss " : ""); 514 515 if (ni == vap->iv_bss) { 516 notify_macaddr(ifp, newassoc ? 517 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid); 518 if_link_state_change(ifp, LINK_STATE_UP); 519 } else { 520 notify_macaddr(ifp, newassoc ? 521 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr); 522 } 523} 524 525void 526ieee80211_notify_node_leave(struct ieee80211_node *ni) 527{ 528 struct ieee80211vap *vap = ni->ni_vap; 529 struct ifnet *ifp = vap->iv_ifp; 530 531 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave", 532 (ni == vap->iv_bss) ? "bss " : ""); 533 534 if (ni == vap->iv_bss) { 535 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 536 if_link_state_change(ifp, LINK_STATE_DOWN); 537 } else { 538 /* fire off wireless event station leaving */ 539 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr); 540 } 541} 542 543void 544ieee80211_notify_scan_done(struct ieee80211vap *vap) 545{ 546 struct ifnet *ifp = vap->iv_ifp; 547 548 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done"); 549 550 /* dispatch wireless event indicating scan completed */ 551 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 552} 553 554void 555ieee80211_notify_replay_failure(struct ieee80211vap *vap, 556 const struct ieee80211_frame *wh, const struct ieee80211_key *k, 557 u_int64_t rsc) 558{ 559 struct ifnet *ifp = vap->iv_ifp; 560 561 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 562 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>", 563 k->wk_cipher->ic_name, (intmax_t) rsc, 564 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID], 565 k->wk_keyix, k->wk_rxkeyix); 566 567 if (ifp != NULL) { /* NB: for cipher test modules */ 568 struct ieee80211_replay_event iev; 569 570 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 571 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 572 iev.iev_cipher = k->wk_cipher->ic_cipher; 573 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 574 iev.iev_keyix = k->wk_rxkeyix; 575 else 576 iev.iev_keyix = k->wk_keyix; 577 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */ 578 iev.iev_rsc = rsc; 579 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 580 } 581} 582 583void 584ieee80211_notify_michael_failure(struct ieee80211vap *vap, 585 const struct ieee80211_frame *wh, u_int keyix) 586{ 587 struct ifnet *ifp = vap->iv_ifp; 588 589 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 590 "michael MIC verification failed <keyix %u>", keyix); 591 vap->iv_stats.is_rx_tkipmic++; 592 593 if (ifp != NULL) { /* NB: for cipher test modules */ 594 struct ieee80211_michael_event iev; 595 596 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 597 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 598 iev.iev_cipher = IEEE80211_CIPHER_TKIP; 599 iev.iev_keyix = keyix; 600 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 601 } 602} 603 604void 605ieee80211_notify_wds_discover(struct ieee80211_node *ni) 606{ 607 struct ieee80211vap *vap = ni->ni_vap; 608 struct ifnet *ifp = vap->iv_ifp; 609 610 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr); 611} 612 613void 614ieee80211_notify_csa(struct ieee80211com *ic, 615 const struct ieee80211_channel *c, int mode, int count) 616{ 617 struct ifnet *ifp = ic->ic_ifp; 618 struct ieee80211_csa_event iev; 619 620 memset(&iev, 0, sizeof(iev)); 621 iev.iev_flags = c->ic_flags; 622 iev.iev_freq = c->ic_freq; 623 iev.iev_ieee = c->ic_ieee; 624 iev.iev_mode = mode; 625 iev.iev_count = count; 626 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev)); 627} 628 629void 630ieee80211_notify_radar(struct ieee80211com *ic, 631 const struct ieee80211_channel *c) 632{ 633 struct ifnet *ifp = ic->ic_ifp; 634 struct ieee80211_radar_event iev; 635 636 memset(&iev, 0, sizeof(iev)); 637 iev.iev_flags = c->ic_flags; 638 iev.iev_freq = c->ic_freq; 639 iev.iev_ieee = c->ic_ieee; 640 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev)); 641} 642 643void 644ieee80211_notify_cac(struct ieee80211com *ic, 645 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type) 646{ 647 struct ifnet *ifp = ic->ic_ifp; 648 struct ieee80211_cac_event iev; 649 650 memset(&iev, 0, sizeof(iev)); 651 iev.iev_flags = c->ic_flags; 652 iev.iev_freq = c->ic_freq; 653 iev.iev_ieee = c->ic_ieee; 654 iev.iev_type = type; 655 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev)); 656} 657 658void 659ieee80211_notify_node_deauth(struct ieee80211_node *ni) 660{ 661 struct ieee80211vap *vap = ni->ni_vap; 662 struct ifnet *ifp = vap->iv_ifp; 663 664 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth"); 665 666 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr); 667} 668 669void 670ieee80211_notify_node_auth(struct ieee80211_node *ni) 671{ 672 struct ieee80211vap *vap = ni->ni_vap; 673 struct ifnet *ifp = vap->iv_ifp; 674 675 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth"); 676 677 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr); 678} 679 680void 681ieee80211_notify_country(struct ieee80211vap *vap, 682 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2]) 683{ 684 struct ifnet *ifp = vap->iv_ifp; 685 struct ieee80211_country_event iev; 686 687 memset(&iev, 0, sizeof(iev)); 688 IEEE80211_ADDR_COPY(iev.iev_addr, bssid); 689 iev.iev_cc[0] = cc[0]; 690 iev.iev_cc[1] = cc[1]; 691 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev)); 692} 693 694void 695ieee80211_notify_radio(struct ieee80211com *ic, int state) 696{ 697 struct ifnet *ifp = ic->ic_ifp; 698 struct ieee80211_radio_event iev; 699 700 memset(&iev, 0, sizeof(iev)); 701 iev.iev_state = state; 702 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev)); 703} 704 705void 706ieee80211_load_module(const char *modname) 707{ 708 709#ifdef notyet 710 (void)kern_kldload(curthread, modname, NULL); 711#else 712 printf("%s: load the %s module by hand for now.\n", __func__, modname); 713#endif 714} 715 716/* 717 * Module glue. 718 * 719 * NB: the module name is "wlan" for compatibility with NetBSD. 720 */ 721static int 722wlan_modevent(module_t mod, int type, void *unused) 723{ 724 switch (type) { 725 case MOD_LOAD: 726 if (bootverbose) 727 printf("wlan: <802.11 Link Layer>\n"); 728 if_clone_attach(&wlan_cloner); 729 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free); 730 return 0; 731 case MOD_UNLOAD: 732 if_deregister_com_alloc(IFT_IEEE80211); 733 if_clone_detach(&wlan_cloner); 734 return 0; 735 } 736 return EINVAL; 737} 738 739static moduledata_t wlan_mod = { 740 "wlan", 741 wlan_modevent, 742 0 743}; 744DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 745MODULE_VERSION(wlan, 1); 746MODULE_DEPEND(wlan, ether, 1, 1, 1); 747