ieee80211_netbsd.c revision 1.25
1 /* $NetBSD: ieee80211_netbsd.c,v 1.25 2014/02/25 18:30:12 pooka Exp $ */ 2 /*- 3 * Copyright (c) 2003-2005 Sam Leffler, Errno Consulting 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #ifdef __FreeBSD__ 31 __FBSDID("$FreeBSD: src/sys/net80211/ieee80211_freebsd.c,v 1.8 2005/08/08 18:46:35 sam Exp $"); 32 #else 33 __KERNEL_RCSID(0, "$NetBSD: ieee80211_netbsd.c,v 1.25 2014/02/25 18:30:12 pooka Exp $"); 34 #endif 35 36 /* 37 * IEEE 802.11 support (NetBSD-specific code) 38 */ 39 #include <sys/param.h> 40 #include <sys/kernel.h> 41 #include <sys/systm.h> 42 #include <sys/mbuf.h> 43 #include <sys/proc.h> 44 #include <sys/sysctl.h> 45 #include <sys/once.h> 46 47 #include <sys/socket.h> 48 49 #include <sys/cprng.h> 50 51 #include <net/if.h> 52 #include <net/if_media.h> 53 #include <net/if_ether.h> 54 #include <net/route.h> 55 56 #include <net80211/ieee80211_netbsd.h> 57 #include <net80211/ieee80211_var.h> 58 #include <net80211/ieee80211_sysctl.h> 59 60 #define LOGICALLY_EQUAL(x, y) (!(x) == !(y)) 61 62 static void ieee80211_sysctl_fill_node(struct ieee80211_node *, 63 struct ieee80211_node_sysctl *, int, const struct ieee80211_channel *, 64 uint32_t); 65 static struct ieee80211_node *ieee80211_node_walknext( 66 struct ieee80211_node_walk *); 67 static struct ieee80211_node *ieee80211_node_walkfirst( 68 struct ieee80211_node_walk *, u_short); 69 static int ieee80211_sysctl_node(SYSCTLFN_ARGS); 70 71 #ifdef IEEE80211_DEBUG 72 int ieee80211_debug = 0; 73 #endif 74 75 typedef void (*ieee80211_setup_func)(void); 76 77 __link_set_decl(ieee80211_funcs, ieee80211_setup_func); 78 79 static int 80 ieee80211_init0(void) 81 { 82 ieee80211_setup_func * const *ieee80211_setup, f; 83 84 if (max_linkhdr < ALIGN(sizeof(struct ieee80211_qosframe_addr4))) { 85 max_linkhdr = ALIGN(sizeof(struct ieee80211_qosframe_addr4)); 86 } 87 88 __link_set_foreach(ieee80211_setup, ieee80211_funcs) { 89 f = (void*)*ieee80211_setup; 90 (*f)(); 91 } 92 93 return 0; 94 } 95 96 void 97 ieee80211_init(void) 98 { 99 static ONCE_DECL(ieee80211_init_once); 100 101 RUN_ONCE(&ieee80211_init_once, ieee80211_init0); 102 } 103 104 static int 105 ieee80211_sysctl_inact(SYSCTLFN_ARGS) 106 { 107 int error, t; 108 struct sysctlnode node; 109 110 node = *rnode; 111 /* sysctl_lookup copies the product from t. Then, it 112 * copies the new value onto t. 113 */ 114 t = *(int*)rnode->sysctl_data * IEEE80211_INACT_WAIT; 115 node.sysctl_data = &t; 116 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 117 if (error || newp == NULL) 118 return (error); 119 120 /* The new value was in seconds. Convert to inactivity-wait 121 * intervals. There are IEEE80211_INACT_WAIT seconds per 122 * interval. 123 */ 124 *(int*)rnode->sysctl_data = t / IEEE80211_INACT_WAIT; 125 126 return (0); 127 } 128 129 static int 130 ieee80211_sysctl_parent(SYSCTLFN_ARGS) 131 { 132 struct ieee80211com *ic; 133 char pname[IFNAMSIZ]; 134 struct sysctlnode node; 135 136 node = *rnode; 137 ic = node.sysctl_data; 138 strncpy(pname, ic->ic_ifp->if_xname, IFNAMSIZ); 139 node.sysctl_data = pname; 140 return sysctl_lookup(SYSCTLFN_CALL(&node)); 141 } 142 143 /* 144 * Create or get top of sysctl tree net.link.ieee80211. 145 */ 146 static const struct sysctlnode * 147 ieee80211_sysctl_treetop(struct sysctllog **log) 148 { 149 int rc; 150 const struct sysctlnode *rnode; 151 152 if ((rc = sysctl_createv(log, 0, NULL, &rnode, 153 CTLFLAG_PERMANENT, CTLTYPE_NODE, "link", 154 "link-layer statistics and controls", 155 NULL, 0, NULL, 0, CTL_NET, PF_LINK, CTL_EOL)) != 0) 156 goto err; 157 158 if ((rc = sysctl_createv(log, 0, &rnode, &rnode, 159 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee80211", 160 "IEEE 802.11 WLAN statistics and controls", 161 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 162 goto err; 163 164 return rnode; 165 err: 166 printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc); 167 return NULL; 168 } 169 170 void 171 ieee80211_sysctl_attach(struct ieee80211com *ic) 172 { 173 int rc; 174 const struct sysctlnode *cnode, *rnode; 175 char num[sizeof("vap") + 14]; /* sufficient for 32 bits */ 176 177 if ((rnode = ieee80211_sysctl_treetop(NULL)) == NULL) 178 return; 179 180 snprintf(num, sizeof(num), "vap%u", ic->ic_vap); 181 182 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &rnode, 183 CTLFLAG_PERMANENT, CTLTYPE_NODE, num, SYSCTL_DESCR("virtual AP"), 184 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 185 goto err; 186 187 /* control debugging printfs */ 188 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 189 CTLFLAG_PERMANENT|CTLFLAG_READONLY, CTLTYPE_STRING, 190 "parent", SYSCTL_DESCR("parent device"), 191 ieee80211_sysctl_parent, 0, (void *)ic, IFNAMSIZ, CTL_CREATE, 192 CTL_EOL)) != 0) 193 goto err; 194 195 #ifdef IEEE80211_DEBUG 196 /* control debugging printfs */ 197 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 198 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 199 "debug", SYSCTL_DESCR("control debugging printfs"), 200 NULL, ieee80211_debug, &ic->ic_debug, 0, 201 CTL_CREATE, CTL_EOL)) != 0) 202 goto err; 203 #endif 204 /* XXX inherit from tunables */ 205 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 206 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 207 "inact_run", SYSCTL_DESCR("station inactivity timeout (sec)"), 208 ieee80211_sysctl_inact, 0, &ic->ic_inact_run, 0, 209 CTL_CREATE, CTL_EOL)) != 0) 210 goto err; 211 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 212 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 213 "inact_probe", 214 SYSCTL_DESCR("station inactivity probe timeout (sec)"), 215 ieee80211_sysctl_inact, 0, &ic->ic_inact_probe, 0, 216 CTL_CREATE, CTL_EOL)) != 0) 217 goto err; 218 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 219 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 220 "inact_auth", 221 SYSCTL_DESCR("station authentication timeout (sec)"), 222 ieee80211_sysctl_inact, 0, &ic->ic_inact_auth, 0, 223 CTL_CREATE, CTL_EOL)) != 0) 224 goto err; 225 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 226 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 227 "inact_init", 228 SYSCTL_DESCR("station initial state timeout (sec)"), 229 ieee80211_sysctl_inact, 0, &ic->ic_inact_init, 0, 230 CTL_CREATE, CTL_EOL)) != 0) 231 goto err; 232 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 233 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 234 "driver_caps", SYSCTL_DESCR("driver capabilities"), 235 NULL, 0, &ic->ic_caps, 0, CTL_CREATE, CTL_EOL)) != 0) 236 goto err; 237 if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode, 238 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 239 "bmiss_max", SYSCTL_DESCR("consecutive beacon misses before scanning"), 240 NULL, 0, &ic->ic_bmiss_max, 0, CTL_CREATE, CTL_EOL)) != 0) 241 goto err; 242 243 return; 244 err: 245 printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc); 246 } 247 248 void 249 ieee80211_sysctl_detach(struct ieee80211com *ic) 250 { 251 sysctl_teardown(&ic->ic_sysctllog); 252 } 253 254 /* 255 * Pointers for testing: 256 * 257 * If there are no interfaces, or else no 802.11 interfaces, 258 * ieee80211_node_walkfirst must return NULL. 259 * 260 * If there is any single 802.11 interface, ieee80211_node_walkfirst 261 * must not return NULL. 262 */ 263 static struct ieee80211_node * 264 ieee80211_node_walkfirst(struct ieee80211_node_walk *nw, u_short if_index) 265 { 266 (void)memset(nw, 0, sizeof(*nw)); 267 268 nw->nw_ifindex = if_index; 269 270 LIST_FOREACH(nw->nw_ic, &ieee80211com_head, ic_list) { 271 if (if_index != 0 && nw->nw_ic->ic_ifp->if_index != if_index) 272 continue; 273 if (!TAILQ_EMPTY(&nw->nw_ic->ic_sta.nt_node)) 274 nw->nw_nt = &nw->nw_ic->ic_sta; 275 else if (!TAILQ_EMPTY(&nw->nw_ic->ic_scan.nt_node)) 276 nw->nw_nt = &nw->nw_ic->ic_scan; 277 else if (nw->nw_ic->ic_bss == NULL) 278 continue; 279 break; 280 } 281 282 if (nw->nw_ic == NULL) 283 return NULL; 284 285 if (nw->nw_nt == NULL) 286 nw->nw_ni = nw->nw_ic->ic_bss; 287 else 288 nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node); 289 290 return nw->nw_ni; 291 } 292 293 static struct ieee80211_node * 294 ieee80211_node_walknext(struct ieee80211_node_walk *nw) 295 { 296 if (nw->nw_nt != NULL) 297 nw->nw_ni = TAILQ_NEXT(nw->nw_ni, ni_list); 298 else 299 nw->nw_ni = NULL; 300 301 while (nw->nw_ni == NULL) { 302 if (nw->nw_nt == &nw->nw_ic->ic_sta) { 303 nw->nw_nt = &nw->nw_ic->ic_scan; 304 nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node); 305 continue; 306 } else if (nw->nw_nt == &nw->nw_ic->ic_scan) { 307 nw->nw_nt = NULL; 308 nw->nw_ni = nw->nw_ic->ic_bss; 309 continue; 310 } 311 KASSERT(nw->nw_nt == NULL); 312 if (nw->nw_ifindex != 0) 313 return NULL; 314 315 nw->nw_ic = LIST_NEXT(nw->nw_ic, ic_list); 316 if (nw->nw_ic == NULL) 317 return NULL; 318 319 nw->nw_nt = &nw->nw_ic->ic_sta; 320 nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node); 321 } 322 323 return nw->nw_ni; 324 } 325 326 static void 327 ieee80211_sysctl_fill_node(struct ieee80211_node *ni, 328 struct ieee80211_node_sysctl *ns, int ifindex, 329 const struct ieee80211_channel *chan0, uint32_t flags) 330 { 331 ns->ns_ifindex = ifindex; 332 ns->ns_capinfo = ni->ni_capinfo; 333 ns->ns_flags = flags; 334 (void)memcpy(ns->ns_macaddr, ni->ni_macaddr, sizeof(ns->ns_macaddr)); 335 (void)memcpy(ns->ns_bssid, ni->ni_bssid, sizeof(ns->ns_bssid)); 336 if (ni->ni_chan != IEEE80211_CHAN_ANYC) { 337 ns->ns_freq = ni->ni_chan->ic_freq; 338 ns->ns_chanflags = ni->ni_chan->ic_flags; 339 ns->ns_chanidx = ni->ni_chan - chan0; 340 } else { 341 ns->ns_freq = ns->ns_chanflags = 0; 342 ns->ns_chanidx = 0; 343 } 344 ns->ns_rssi = ni->ni_rssi; 345 ns->ns_esslen = ni->ni_esslen; 346 (void)memcpy(ns->ns_essid, ni->ni_essid, sizeof(ns->ns_essid)); 347 ns->ns_erp = ni->ni_erp; 348 ns->ns_associd = ni->ni_associd; 349 ns->ns_inact = ni->ni_inact * IEEE80211_INACT_WAIT; 350 ns->ns_rstamp = ni->ni_rstamp; 351 ns->ns_rates = ni->ni_rates; 352 ns->ns_txrate = ni->ni_txrate; 353 ns->ns_intval = ni->ni_intval; 354 (void)memcpy(ns->ns_tstamp, &ni->ni_tstamp, sizeof(ns->ns_tstamp)); 355 ns->ns_txseq = ni->ni_txseqs[0]; 356 ns->ns_rxseq = ni->ni_rxseqs[0]; 357 ns->ns_fhdwell = ni->ni_fhdwell; 358 ns->ns_fhindex = ni->ni_fhindex; 359 ns->ns_fails = ni->ni_fails; 360 } 361 362 /* Between two examinations of the sysctl tree, I expect each 363 * interface to add no more than 5 nodes. 364 */ 365 #define IEEE80211_SYSCTL_NODE_GROWTH 5 366 367 static int 368 ieee80211_sysctl_node(SYSCTLFN_ARGS) 369 { 370 struct ieee80211_node_walk nw; 371 struct ieee80211_node *ni; 372 struct ieee80211_node_sysctl ns; 373 char *dp; 374 u_int cur_ifindex, ifcount, ifindex, last_ifindex, op, arg, hdr_type; 375 uint32_t flags; 376 size_t len, needed, eltsize, out_size; 377 int error, s, saw_bss = 0, nelt; 378 379 if (namelen == 1 && name[0] == CTL_QUERY) 380 return (sysctl_query(SYSCTLFN_CALL(rnode))); 381 382 if (namelen != IEEE80211_SYSCTL_NODENAMELEN) 383 return (EINVAL); 384 385 /* ifindex.op.arg.header-type.eltsize.nelt */ 386 dp = oldp; 387 len = (oldp != NULL) ? *oldlenp : 0; 388 ifindex = name[IEEE80211_SYSCTL_NODENAME_IF]; 389 op = name[IEEE80211_SYSCTL_NODENAME_OP]; 390 arg = name[IEEE80211_SYSCTL_NODENAME_ARG]; 391 hdr_type = name[IEEE80211_SYSCTL_NODENAME_TYPE]; 392 eltsize = name[IEEE80211_SYSCTL_NODENAME_ELTSIZE]; 393 nelt = name[IEEE80211_SYSCTL_NODENAME_ELTCOUNT]; 394 out_size = MIN(sizeof(ns), eltsize); 395 396 if (op != IEEE80211_SYSCTL_OP_ALL || arg != 0 || 397 hdr_type != IEEE80211_SYSCTL_T_NODE || eltsize < 1 || nelt < 0) 398 return (EINVAL); 399 400 error = 0; 401 needed = 0; 402 ifcount = 0; 403 last_ifindex = 0; 404 405 s = splnet(); 406 407 for (ni = ieee80211_node_walkfirst(&nw, ifindex); ni != NULL; 408 ni = ieee80211_node_walknext(&nw)) { 409 struct ieee80211com *ic; 410 411 ic = nw.nw_ic; 412 cur_ifindex = ic->ic_ifp->if_index; 413 414 if (cur_ifindex != last_ifindex) { 415 saw_bss = 0; 416 ifcount++; 417 last_ifindex = cur_ifindex; 418 } 419 420 if (nelt <= 0) 421 continue; 422 423 if (saw_bss && ni == ic->ic_bss) 424 continue; 425 else if (ni == ic->ic_bss) { 426 saw_bss = 1; 427 flags = IEEE80211_NODE_SYSCTL_F_BSS; 428 } else 429 flags = 0; 430 if (ni->ni_table == &ic->ic_scan) 431 flags |= IEEE80211_NODE_SYSCTL_F_SCAN; 432 else if (ni->ni_table == &ic->ic_sta) 433 flags |= IEEE80211_NODE_SYSCTL_F_STA; 434 if (len >= eltsize) { 435 ieee80211_sysctl_fill_node(ni, &ns, cur_ifindex, 436 &ic->ic_channels[0], flags); 437 error = copyout(&ns, dp, out_size); 438 if (error) 439 goto cleanup; 440 dp += eltsize; 441 len -= eltsize; 442 } 443 needed += eltsize; 444 if (nelt != INT_MAX) 445 nelt--; 446 } 447 cleanup: 448 splx(s); 449 450 *oldlenp = needed; 451 if (oldp == NULL) 452 *oldlenp += ifcount * IEEE80211_SYSCTL_NODE_GROWTH * eltsize; 453 454 return (error); 455 } 456 457 /* 458 * Setup sysctl(3) MIB, net.ieee80211.* 459 * 460 * TBD condition CTLFLAG_PERMANENT on being a module or not 461 */ 462 SYSCTL_SETUP(sysctl_ieee80211, "sysctl ieee80211 subtree setup") 463 { 464 int rc; 465 const struct sysctlnode *cnode, *rnode; 466 467 if ((rnode = ieee80211_sysctl_treetop(clog)) == NULL) 468 return; 469 470 if ((rc = sysctl_createv(clog, 0, &rnode, NULL, 471 CTLFLAG_PERMANENT, CTLTYPE_NODE, "nodes", "client/peer stations", 472 ieee80211_sysctl_node, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 473 goto err; 474 475 #ifdef IEEE80211_DEBUG 476 /* control debugging printfs */ 477 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 478 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 479 "debug", SYSCTL_DESCR("control debugging printfs"), 480 NULL, 0, &ieee80211_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 481 goto err; 482 #endif /* IEEE80211_DEBUG */ 483 484 return; 485 err: 486 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 487 } 488 489 int 490 ieee80211_node_dectestref(struct ieee80211_node *ni) 491 { 492 if (atomic_dec_uint_nv(&ni->ni_refcnt) == 0) { 493 atomic_inc_uint(&ni->ni_refcnt); 494 return 1; 495 } else 496 return 0; 497 } 498 499 void 500 ieee80211_drain_ifq(struct ifqueue *ifq) 501 { 502 struct ieee80211_node *ni; 503 struct mbuf *m; 504 505 for (;;) { 506 IF_DEQUEUE(ifq, m); 507 if (m == NULL) 508 break; 509 510 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 511 KASSERT(ni != NULL); 512 ieee80211_free_node(ni); 513 m->m_pkthdr.rcvif = NULL; 514 515 m_freem(m); 516 } 517 } 518 519 520 void 521 if_printf(struct ifnet *ifp, const char *fmt, ...) 522 { 523 va_list ap; 524 va_start(ap, fmt); 525 526 printf("%s: ", ifp->if_xname); 527 vprintf(fmt, ap); 528 529 va_end(ap); 530 return; 531 } 532 533 534 /* 535 * Allocate and setup a management frame of the specified 536 * size. We return the mbuf and a pointer to the start 537 * of the contiguous data area that's been reserved based 538 * on the packet length. The data area is forced to 32-bit 539 * alignment and the buffer length to a multiple of 4 bytes. 540 * This is done mainly so beacon frames (that require this) 541 * can use this interface too. 542 */ 543 struct mbuf * 544 ieee80211_getmgtframe(u_int8_t **frm, u_int pktlen) 545 { 546 struct mbuf *m; 547 u_int len; 548 549 /* 550 * NB: we know the mbuf routines will align the data area 551 * so we don't need to do anything special. 552 */ 553 /* XXX 4-address frame? */ 554 len = roundup(sizeof(struct ieee80211_frame) + pktlen, 4); 555 IASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 556 if (len <= MHLEN) { 557 m = m_gethdr(M_NOWAIT, MT_HEADER); 558 /* 559 * Align the data in case additional headers are added. 560 * This should only happen when a WEP header is added 561 * which only happens for shared key authentication mgt 562 * frames which all fit in MHLEN. 563 */ 564 if (m != NULL) 565 MH_ALIGN(m, len); 566 } else 567 m = m_getcl(M_NOWAIT, MT_HEADER, M_PKTHDR); 568 if (m != NULL) { 569 m->m_data += sizeof(struct ieee80211_frame); 570 *frm = m->m_data; 571 IASSERT((uintptr_t)*frm % 4 == 0, ("bad beacon boundary")); 572 } 573 return m; 574 } 575 576 void 577 get_random_bytes(void *p, size_t n) 578 { 579 cprng_fast(p, n); 580 } 581 582 void 583 ieee80211_notify_node_join(struct ieee80211com *ic, struct ieee80211_node *ni, int newassoc) 584 { 585 struct ifnet *ifp = ic->ic_ifp; 586 struct ieee80211_join_event iev; 587 588 IEEE80211_DPRINTF(ic, IEEE80211_MSG_NODE, "%snode %s join\n", 589 (ni == ic->ic_bss) ? "bss " : "", 590 ether_sprintf(ni->ni_macaddr)); 591 592 memset(&iev, 0, sizeof(iev)); 593 if (ni == ic->ic_bss) { 594 IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_bssid); 595 rt_ieee80211msg(ifp, newassoc ? 596 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, 597 &iev, sizeof(iev)); 598 if_link_state_change(ifp, LINK_STATE_UP); 599 } else { 600 IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_macaddr); 601 rt_ieee80211msg(ifp, newassoc ? 602 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, 603 &iev, sizeof(iev)); 604 } 605 } 606 607 void 608 ieee80211_notify_node_leave(struct ieee80211com *ic, struct ieee80211_node *ni) 609 { 610 struct ifnet *ifp = ic->ic_ifp; 611 struct ieee80211_leave_event iev; 612 613 IEEE80211_DPRINTF(ic, IEEE80211_MSG_NODE, "%snode %s leave\n", 614 (ni == ic->ic_bss) ? "bss " : "", 615 ether_sprintf(ni->ni_macaddr)); 616 617 if (ni == ic->ic_bss) { 618 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 619 if_link_state_change(ifp, LINK_STATE_DOWN); 620 } else { 621 /* fire off wireless event station leaving */ 622 memset(&iev, 0, sizeof(iev)); 623 IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_macaddr); 624 rt_ieee80211msg(ifp, RTM_IEEE80211_LEAVE, &iev, sizeof(iev)); 625 } 626 } 627 628 void 629 ieee80211_notify_scan_done(struct ieee80211com *ic) 630 { 631 struct ifnet *ifp = ic->ic_ifp; 632 633 IEEE80211_DPRINTF(ic, IEEE80211_MSG_SCAN, 634 "%s", "notify scan done\n"); 635 636 /* dispatch wireless event indicating scan completed */ 637 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 638 } 639 640 void 641 ieee80211_notify_replay_failure(struct ieee80211com *ic, 642 const struct ieee80211_frame *wh, const struct ieee80211_key *k, 643 u_int64_t rsc) 644 { 645 struct ifnet *ifp = ic->ic_ifp; 646 647 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO, 648 "[%s] %s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>\n", 649 ether_sprintf(wh->i_addr2), k->wk_cipher->ic_name, 650 (intmax_t) rsc, (intmax_t) k->wk_keyrsc, 651 k->wk_keyix, k->wk_rxkeyix); 652 653 if (ifp != NULL) { /* NB: for cipher test modules */ 654 struct ieee80211_replay_event iev; 655 656 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 657 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 658 iev.iev_cipher = k->wk_cipher->ic_cipher; 659 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 660 iev.iev_keyix = k->wk_rxkeyix; 661 else 662 iev.iev_keyix = k->wk_keyix; 663 iev.iev_keyrsc = k->wk_keyrsc; 664 iev.iev_rsc = rsc; 665 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 666 } 667 } 668 669 void 670 ieee80211_notify_michael_failure(struct ieee80211com *ic, 671 const struct ieee80211_frame *wh, u_int keyix) 672 { 673 struct ifnet *ifp = ic->ic_ifp; 674 675 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO, 676 "[%s] michael MIC verification failed <keyix %u>\n", 677 ether_sprintf(wh->i_addr2), keyix); 678 ic->ic_stats.is_rx_tkipmic++; 679 680 if (ifp != NULL) { /* NB: for cipher test modules */ 681 struct ieee80211_michael_event iev; 682 683 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 684 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 685 iev.iev_cipher = IEEE80211_CIPHER_TKIP; 686 iev.iev_keyix = keyix; 687 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 688 } 689 } 690 691 void 692 ieee80211_load_module(const char *modname) 693 { 694 #ifdef notyet 695 struct thread *td = curthread; 696 697 if (suser(td) == 0 && securelevel_gt(td->td_ucred, 0) == 0) { 698 mtx_lock(&Giant); 699 (void) linker_load_module(modname, NULL, NULL, NULL, NULL); 700 mtx_unlock(&Giant); 701 } 702 #else 703 printf("%s: load the %s module by hand for now.\n", __func__, modname); 704 #endif 705 } 706
Indexes created Fri Sep 26 20:09:58 GMT 2025