ieee80211.c revision 1.13
1 /* $NetBSD: ieee80211.c,v 1.13 2004/05/09 08:19:21 dyoung Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU General Public License ("GPL") version 2 as published by the Free 20 * Software Foundation. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #ifdef __FreeBSD__ 36 __FBSDID("$FreeBSD: src/sys/net80211/ieee80211.c,v 1.11 2004/04/02 20:19:20 sam Exp $"); 37 #else 38 __KERNEL_RCSID(0, "$NetBSD: ieee80211.c,v 1.13 2004/05/09 08:19:21 dyoung Exp $"); 39 #endif 40 41 /* 42 * IEEE 802.11 generic handler 43 */ 44 45 #include "opt_inet.h" 46 #include "bpfilter.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/mbuf.h> 51 #include <sys/malloc.h> 52 #include <sys/kernel.h> 53 #include <sys/socket.h> 54 #include <sys/sockio.h> 55 #include <sys/endian.h> 56 #include <sys/errno.h> 57 #ifdef __FreeBSD__ 58 #include <sys/bus.h> 59 #endif 60 #include <sys/proc.h> 61 #include <sys/sysctl.h> 62 63 #ifdef __FreeBSD__ 64 #include <machine/atomic.h> 65 #endif 66 67 #include <net/if.h> 68 #include <net/if_dl.h> 69 #include <net/if_media.h> 70 #include <net/if_arp.h> 71 #ifdef __FreeBSD__ 72 #include <net/ethernet.h> 73 #else 74 #include <net/if_ether.h> 75 #endif 76 #include <net/if_llc.h> 77 78 #include <net80211/ieee80211_var.h> 79 #include <net80211/ieee80211_compat.h> 80 #include <net80211/ieee80211_sysctl.h> 81 82 #include <net/bpf.h> 83 84 #ifdef INET 85 #include <netinet/in.h> 86 #ifdef __FreeBSD__ 87 #include <netinet/if_ether.h> 88 #else 89 #include <net/if_ether.h> 90 #endif 91 #endif 92 93 #ifdef IEEE80211_DEBUG 94 int ieee80211_debug = 0; 95 #ifdef __NetBSD__ 96 static int ieee80211_debug_nodenum; 97 #endif /* __NetBSD__ */ 98 99 #ifdef __FreeBSD__ 100 SYSCTL_INT(_debug, OID_AUTO, ieee80211, CTLFLAG_RW, &ieee80211_debug, 101 0, "IEEE 802.11 media debugging printfs"); 102 #endif 103 #endif 104 105 int ieee80211_inact_max = IEEE80211_INACT_MAX; 106 static int ieee80211_inact_max_nodenum; 107 108 struct ieee80211com_head ieee80211com_head = 109 LIST_HEAD_INITIALIZER(ieee80211com_head); 110 111 static void ieee80211_set11gbasicrates(struct ieee80211_rateset *, 112 enum ieee80211_phymode); 113 114 static const char *ieee80211_phymode_name[] = { 115 "auto", /* IEEE80211_MODE_AUTO */ 116 "11a", /* IEEE80211_MODE_11A */ 117 "11b", /* IEEE80211_MODE_11B */ 118 "11g", /* IEEE80211_MODE_11G */ 119 "FH", /* IEEE80211_MODE_FH */ 120 "turbo", /* IEEE80211_MODE_TURBO */ 121 }; 122 123 void 124 ieee80211_ifattach(struct ifnet *ifp) 125 { 126 struct ieee80211com *ic = (void *)ifp; 127 struct ieee80211_channel *c; 128 int i; 129 130 ether_ifattach(ifp, ic->ic_myaddr); 131 #if NBPFILTER > 0 132 bpfattach2(ifp, DLT_IEEE802_11, 133 sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf); 134 #endif 135 ieee80211_crypto_attach(ifp); 136 137 /* 138 * Fill in 802.11 available channel set, mark 139 * all available channels as active, and pick 140 * a default channel if not already specified. 141 */ 142 memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail)); 143 ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO; 144 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 145 c = &ic->ic_channels[i]; 146 if (c->ic_flags) { 147 /* 148 * Verify driver passed us valid data. 149 */ 150 if (i != ieee80211_chan2ieee(ic, c)) { 151 if_printf(ifp, "bad channel ignored; " 152 "freq %u flags %x number %u\n", 153 c->ic_freq, c->ic_flags, i); 154 c->ic_flags = 0; /* NB: remove */ 155 continue; 156 } 157 setbit(ic->ic_chan_avail, i); 158 /* 159 * Identify mode capabilities. 160 */ 161 if (IEEE80211_IS_CHAN_A(c)) 162 ic->ic_modecaps |= 1<<IEEE80211_MODE_11A; 163 if (IEEE80211_IS_CHAN_B(c)) 164 ic->ic_modecaps |= 1<<IEEE80211_MODE_11B; 165 if (IEEE80211_IS_CHAN_PUREG(c)) 166 ic->ic_modecaps |= 1<<IEEE80211_MODE_11G; 167 if (IEEE80211_IS_CHAN_FHSS(c)) 168 ic->ic_modecaps |= 1<<IEEE80211_MODE_FH; 169 if (IEEE80211_IS_CHAN_T(c)) 170 ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO; 171 } 172 } 173 /* validate ic->ic_curmode */ 174 if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0) 175 ic->ic_curmode = IEEE80211_MODE_AUTO; 176 ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */ 177 178 (void) ieee80211_setmode(ic, ic->ic_curmode); 179 180 if (ic->ic_lintval == 0) 181 ic->ic_lintval = 100; /* default sleep */ 182 ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */ 183 184 LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list); 185 ieee80211_node_attach(ifp); 186 ieee80211_proto_attach(ifp); 187 } 188 189 void 190 ieee80211_ifdetach(struct ifnet *ifp) 191 { 192 struct ieee80211com *ic = (void *)ifp; 193 194 ieee80211_proto_detach(ifp); 195 ieee80211_crypto_detach(ifp); 196 ieee80211_node_detach(ifp); 197 LIST_REMOVE(ic, ic_list); 198 #ifdef __FreeBSD__ 199 ifmedia_removeall(&ic->ic_media); 200 #else 201 ifmedia_delete_instance(&ic->ic_media, IFM_INST_ANY); 202 #endif 203 #if NBPFILTER > 0 204 bpfdetach(ifp); 205 #endif 206 ether_ifdetach(ifp); 207 } 208 209 /* 210 * Convert MHz frequency to IEEE channel number. 211 */ 212 u_int 213 ieee80211_mhz2ieee(u_int freq, u_int flags) 214 { 215 if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 216 if (freq == 2484) 217 return 14; 218 if (freq < 2484) 219 return (freq - 2407) / 5; 220 else 221 return 15 + ((freq - 2512) / 20); 222 } else if (flags & IEEE80211_CHAN_5GHZ) { /* 5Ghz band */ 223 return (freq - 5000) / 5; 224 } else { /* either, guess */ 225 if (freq == 2484) 226 return 14; 227 if (freq < 2484) 228 return (freq - 2407) / 5; 229 if (freq < 5000) 230 return 15 + ((freq - 2512) / 20); 231 return (freq - 5000) / 5; 232 } 233 } 234 235 /* 236 * Convert channel to IEEE channel number. 237 */ 238 u_int 239 ieee80211_chan2ieee(struct ieee80211com *ic, struct ieee80211_channel *c) 240 { 241 if (ic->ic_channels <= c && c <= &ic->ic_channels[IEEE80211_CHAN_MAX]) 242 return c - ic->ic_channels; 243 else if (c == IEEE80211_CHAN_ANYC) 244 return IEEE80211_CHAN_ANY; 245 else if (c != NULL) { 246 if_printf(&ic->ic_if, "invalid channel freq %u flags %x\n", 247 c->ic_freq, c->ic_flags); 248 return 0; /* XXX */ 249 } else { 250 if_printf(&ic->ic_if, "invalid channel (NULL)\n"); 251 return 0; /* XXX */ 252 } 253 } 254 255 /* 256 * Convert IEEE channel number to MHz frequency. 257 */ 258 u_int 259 ieee80211_ieee2mhz(u_int chan, u_int flags) 260 { 261 if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 262 if (chan == 14) 263 return 2484; 264 if (chan < 14) 265 return 2407 + chan*5; 266 else 267 return 2512 + ((chan-15)*20); 268 } else if (flags & IEEE80211_CHAN_5GHZ) {/* 5Ghz band */ 269 return 5000 + (chan*5); 270 } else { /* either, guess */ 271 if (chan == 14) 272 return 2484; 273 if (chan < 14) /* 0-13 */ 274 return 2407 + chan*5; 275 if (chan < 27) /* 15-26 */ 276 return 2512 + ((chan-15)*20); 277 return 5000 + (chan*5); 278 } 279 } 280 281 /* 282 * Setup the media data structures according to the channel and 283 * rate tables. This must be called by the driver after 284 * ieee80211_attach and before most anything else. 285 */ 286 void 287 ieee80211_media_init(struct ifnet *ifp, 288 ifm_change_cb_t media_change, ifm_stat_cb_t media_stat) 289 { 290 #define ADD(_ic, _s, _o) \ 291 ifmedia_add(&(_ic)->ic_media, \ 292 IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL) 293 struct ieee80211com *ic = (void *)ifp; 294 struct ifmediareq imr; 295 int i, j, mode, rate, maxrate, mword, mopt, r; 296 struct ieee80211_rateset *rs; 297 struct ieee80211_rateset allrates; 298 299 /* 300 * Do late attach work that must wait for any subclass 301 * (i.e. driver) work such as overriding methods. 302 */ 303 ieee80211_node_lateattach(ifp); 304 305 /* 306 * Fill in media characteristics. 307 */ 308 ifmedia_init(&ic->ic_media, 0, media_change, media_stat); 309 maxrate = 0; 310 memset(&allrates, 0, sizeof(allrates)); 311 for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_MAX; mode++) { 312 static const u_int mopts[] = { 313 IFM_AUTO, 314 IFM_IEEE80211_11A, 315 IFM_IEEE80211_11B, 316 IFM_IEEE80211_11G, 317 IFM_IEEE80211_FH, 318 IFM_IEEE80211_11A | IFM_IEEE80211_TURBO, 319 }; 320 if ((ic->ic_modecaps & (1<<mode)) == 0) 321 continue; 322 mopt = mopts[mode]; 323 ADD(ic, IFM_AUTO, mopt); /* e.g. 11a auto */ 324 if (ic->ic_caps & IEEE80211_C_IBSS) 325 ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC); 326 if (ic->ic_caps & IEEE80211_C_HOSTAP) 327 ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_HOSTAP); 328 if (ic->ic_caps & IEEE80211_C_AHDEMO) 329 ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0); 330 if (ic->ic_caps & IEEE80211_C_MONITOR) 331 ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_MONITOR); 332 if (mode == IEEE80211_MODE_AUTO) 333 continue; 334 if_printf(ifp, "%s rates: ", ieee80211_phymode_name[mode]); 335 rs = &ic->ic_sup_rates[mode]; 336 for (i = 0; i < rs->rs_nrates; i++) { 337 rate = rs->rs_rates[i]; 338 mword = ieee80211_rate2media(ic, rate, mode); 339 if (mword == 0) 340 continue; 341 printf("%s%d%sMbps", (i != 0 ? " " : ""), 342 (rate & IEEE80211_RATE_VAL) / 2, 343 ((rate & 0x1) != 0 ? ".5" : "")); 344 ADD(ic, mword, mopt); 345 if (ic->ic_caps & IEEE80211_C_IBSS) 346 ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC); 347 if (ic->ic_caps & IEEE80211_C_HOSTAP) 348 ADD(ic, mword, mopt | IFM_IEEE80211_HOSTAP); 349 if (ic->ic_caps & IEEE80211_C_AHDEMO) 350 ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0); 351 if (ic->ic_caps & IEEE80211_C_MONITOR) 352 ADD(ic, mword, mopt | IFM_IEEE80211_MONITOR); 353 /* 354 * Add rate to the collection of all rates. 355 */ 356 r = rate & IEEE80211_RATE_VAL; 357 for (j = 0; j < allrates.rs_nrates; j++) 358 if (allrates.rs_rates[j] == r) 359 break; 360 if (j == allrates.rs_nrates) { 361 /* unique, add to the set */ 362 allrates.rs_rates[j] = r; 363 allrates.rs_nrates++; 364 } 365 rate = (rate & IEEE80211_RATE_VAL) / 2; 366 if (rate > maxrate) 367 maxrate = rate; 368 } 369 printf("\n"); 370 } 371 for (i = 0; i < allrates.rs_nrates; i++) { 372 mword = ieee80211_rate2media(ic, allrates.rs_rates[i], 373 IEEE80211_MODE_AUTO); 374 if (mword == 0) 375 continue; 376 mword = IFM_SUBTYPE(mword); /* remove media options */ 377 ADD(ic, mword, 0); 378 if (ic->ic_caps & IEEE80211_C_IBSS) 379 ADD(ic, mword, IFM_IEEE80211_ADHOC); 380 if (ic->ic_caps & IEEE80211_C_HOSTAP) 381 ADD(ic, mword, IFM_IEEE80211_HOSTAP); 382 if (ic->ic_caps & IEEE80211_C_AHDEMO) 383 ADD(ic, mword, IFM_IEEE80211_ADHOC | IFM_FLAG0); 384 if (ic->ic_caps & IEEE80211_C_MONITOR) 385 ADD(ic, mword, IFM_IEEE80211_MONITOR); 386 } 387 ieee80211_media_status(ifp, &imr); 388 ifmedia_set(&ic->ic_media, imr.ifm_active); 389 390 if (maxrate) 391 ifp->if_baudrate = IF_Mbps(maxrate); 392 393 if (ic->ic_max_aid == 0) 394 ic->ic_max_aid = IEEE80211_MAX_AID; 395 396 #undef ADD 397 } 398 399 static int 400 findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate) 401 { 402 #define IEEERATE(_ic,_m,_i) \ 403 ((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL) 404 int i, nrates = ic->ic_sup_rates[mode].rs_nrates; 405 for (i = 0; i < nrates; i++) 406 if (IEEERATE(ic, mode, i) == rate) 407 return i; 408 return -1; 409 #undef IEEERATE 410 } 411 412 /* 413 * Handle a media change request. 414 */ 415 int 416 ieee80211_media_change(struct ifnet *ifp) 417 { 418 struct ieee80211com *ic = (void *)ifp; 419 struct ifmedia_entry *ime; 420 enum ieee80211_opmode newopmode; 421 enum ieee80211_phymode newphymode; 422 int i, j, newrate, error = 0; 423 424 ime = ic->ic_media.ifm_cur; 425 /* 426 * First, identify the phy mode. 427 */ 428 switch (IFM_MODE(ime->ifm_media)) { 429 case IFM_IEEE80211_11A: 430 newphymode = IEEE80211_MODE_11A; 431 break; 432 case IFM_IEEE80211_11B: 433 newphymode = IEEE80211_MODE_11B; 434 break; 435 case IFM_IEEE80211_11G: 436 newphymode = IEEE80211_MODE_11G; 437 break; 438 case IFM_IEEE80211_FH: 439 newphymode = IEEE80211_MODE_FH; 440 break; 441 case IFM_AUTO: 442 newphymode = IEEE80211_MODE_AUTO; 443 break; 444 default: 445 return EINVAL; 446 } 447 /* 448 * Turbo mode is an ``option''. Eventually it 449 * needs to be applied to 11g too. 450 */ 451 if (ime->ifm_media & IFM_IEEE80211_TURBO) { 452 if (newphymode != IEEE80211_MODE_11A) 453 return EINVAL; 454 newphymode = IEEE80211_MODE_TURBO; 455 } 456 /* 457 * Validate requested mode is available. 458 */ 459 if ((ic->ic_modecaps & (1<<newphymode)) == 0) 460 return EINVAL; 461 462 /* 463 * Next, the fixed/variable rate. 464 */ 465 i = -1; 466 if (IFM_SUBTYPE(ime->ifm_media) != IFM_AUTO) { 467 /* 468 * Convert media subtype to rate. 469 */ 470 newrate = ieee80211_media2rate(ime->ifm_media); 471 if (newrate == 0) 472 return EINVAL; 473 /* 474 * Check the rate table for the specified/current phy. 475 */ 476 if (newphymode == IEEE80211_MODE_AUTO) { 477 /* 478 * In autoselect mode search for the rate. 479 */ 480 for (j = IEEE80211_MODE_11A; 481 j < IEEE80211_MODE_MAX; j++) { 482 if ((ic->ic_modecaps & (1<<j)) == 0) 483 continue; 484 i = findrate(ic, j, newrate); 485 if (i != -1) { 486 /* lock mode too */ 487 newphymode = j; 488 break; 489 } 490 } 491 } else { 492 i = findrate(ic, newphymode, newrate); 493 } 494 if (i == -1) /* mode/rate mismatch */ 495 return EINVAL; 496 } 497 /* NB: defer rate setting to later */ 498 499 /* 500 * Deduce new operating mode but don't install it just yet. 501 */ 502 if ((ime->ifm_media & (IFM_IEEE80211_ADHOC|IFM_FLAG0)) == 503 (IFM_IEEE80211_ADHOC|IFM_FLAG0)) 504 newopmode = IEEE80211_M_AHDEMO; 505 else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 506 newopmode = IEEE80211_M_HOSTAP; 507 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) 508 newopmode = IEEE80211_M_IBSS; 509 else if (ime->ifm_media & IFM_IEEE80211_MONITOR) 510 newopmode = IEEE80211_M_MONITOR; 511 else 512 newopmode = IEEE80211_M_STA; 513 514 /* 515 * Autoselect doesn't make sense when operating as an AP. 516 * If no phy mode has been selected, pick one and lock it 517 * down so rate tables can be used in forming beacon frames 518 * and the like. 519 */ 520 if (newopmode == IEEE80211_M_HOSTAP && 521 newphymode == IEEE80211_MODE_AUTO) { 522 for (j = IEEE80211_MODE_11A; j < IEEE80211_MODE_MAX; j++) 523 if (ic->ic_modecaps & (1<<j)) { 524 newphymode = j; 525 break; 526 } 527 } 528 529 /* 530 * Handle phy mode change. 531 */ 532 if (ic->ic_curmode != newphymode) { /* change phy mode */ 533 error = ieee80211_setmode(ic, newphymode); 534 if (error != 0) 535 return error; 536 error = ENETRESET; 537 } 538 539 /* 540 * Committed to changes, install the rate setting. 541 */ 542 if (ic->ic_fixed_rate != i) { 543 ic->ic_fixed_rate = i; /* set fixed tx rate */ 544 error = ENETRESET; 545 } 546 547 /* 548 * Handle operating mode change. 549 */ 550 if (ic->ic_opmode != newopmode) { 551 ic->ic_opmode = newopmode; 552 switch (newopmode) { 553 case IEEE80211_M_AHDEMO: 554 case IEEE80211_M_HOSTAP: 555 case IEEE80211_M_STA: 556 case IEEE80211_M_MONITOR: 557 ic->ic_flags &= ~IEEE80211_F_IBSSON; 558 break; 559 case IEEE80211_M_IBSS: 560 ic->ic_flags |= IEEE80211_F_IBSSON; 561 #ifdef notdef 562 if (ic->ic_curmode == IEEE80211_MODE_11G) 563 ieee80211_set11gbasicrates( 564 &ic->ic_suprates[newphymode], 565 IEEE80211_MODE_11B); 566 #endif 567 break; 568 } 569 error = ENETRESET; 570 } 571 #ifdef notdef 572 if (error == 0) 573 ifp->if_baudrate = ifmedia_baudrate(ime->ifm_media); 574 #endif 575 return error; 576 } 577 578 void 579 ieee80211_media_status(struct ifnet *ifp, struct ifmediareq *imr) 580 { 581 struct ieee80211com *ic = (void *)ifp; 582 struct ieee80211_node *ni = NULL; 583 584 imr->ifm_status = IFM_AVALID; 585 imr->ifm_active = IFM_IEEE80211; 586 if (ic->ic_state == IEEE80211_S_RUN) 587 imr->ifm_status |= IFM_ACTIVE; 588 imr->ifm_active |= IFM_AUTO; 589 switch (ic->ic_opmode) { 590 case IEEE80211_M_STA: 591 ni = ic->ic_bss; 592 /* calculate rate subtype */ 593 imr->ifm_active |= ieee80211_rate2media(ic, 594 ni->ni_rates.rs_rates[ni->ni_txrate], ic->ic_curmode); 595 break; 596 case IEEE80211_M_IBSS: 597 imr->ifm_active |= IFM_IEEE80211_ADHOC; 598 break; 599 case IEEE80211_M_AHDEMO: 600 /* should not come here */ 601 break; 602 case IEEE80211_M_HOSTAP: 603 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 604 break; 605 case IEEE80211_M_MONITOR: 606 imr->ifm_active |= IFM_IEEE80211_MONITOR; 607 break; 608 } 609 switch (ic->ic_curmode) { 610 case IEEE80211_MODE_11A: 611 imr->ifm_active |= IFM_IEEE80211_11A; 612 break; 613 case IEEE80211_MODE_11B: 614 imr->ifm_active |= IFM_IEEE80211_11B; 615 break; 616 case IEEE80211_MODE_11G: 617 imr->ifm_active |= IFM_IEEE80211_11G; 618 break; 619 case IEEE80211_MODE_FH: 620 imr->ifm_active |= IFM_IEEE80211_FH; 621 break; 622 case IEEE80211_MODE_TURBO: 623 imr->ifm_active |= IFM_IEEE80211_11A 624 | IFM_IEEE80211_TURBO; 625 break; 626 } 627 } 628 629 void 630 ieee80211_watchdog(struct ifnet *ifp) 631 { 632 struct ieee80211com *ic = (void *)ifp; 633 634 if (ic->ic_mgt_timer && --ic->ic_mgt_timer == 0) 635 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 636 if (ic->ic_inact_timer && --ic->ic_inact_timer == 0) 637 ieee80211_timeout_nodes(ic); 638 639 if (ic->ic_mgt_timer != 0 || ic->ic_inact_timer != 0) 640 ifp->if_timer = 1; 641 } 642 643 /* 644 * Mark the basic rates for the 11g rate table based on the 645 * operating mode. For real 11g we mark all the 11b rates 646 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 647 * 11b rates. There's also a pseudo 11a-mode used to mark only 648 * the basic OFDM rates. 649 */ 650 static void 651 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 652 { 653 static const struct ieee80211_rateset basic[] = { 654 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 655 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11B */ 656 { 7, { 2, 4, 11, 22, 12, 24, 48 } },/* IEEE80211_MODE_11G */ 657 { 0 }, /* IEEE80211_MODE_FH */ 658 { 0 }, /* IEEE80211_MODE_TURBO */ 659 }; 660 int i, j; 661 662 for (i = 0; i < rs->rs_nrates; i++) { 663 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 664 for (j = 0; j < basic[mode].rs_nrates; j++) 665 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 666 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 667 break; 668 } 669 } 670 } 671 672 /* 673 * Set the current phy mode and recalculate the active channel 674 * set based on the available channels for this mode. Also 675 * select a new default/current channel if the current one is 676 * inappropriate for this mode. 677 */ 678 int 679 ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode) 680 { 681 #define N(a) (sizeof(a) / sizeof(a[0])) 682 static const u_int chanflags[] = { 683 0, /* IEEE80211_MODE_AUTO */ 684 IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */ 685 IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */ 686 IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */ 687 IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */ 688 IEEE80211_CHAN_T, /* IEEE80211_MODE_TURBO */ 689 }; 690 struct ieee80211_channel *c; 691 u_int modeflags; 692 int i; 693 694 /* validate new mode */ 695 if ((ic->ic_modecaps & (1<<mode)) == 0) { 696 IEEE80211_DPRINTF(("%s: mode %u not supported (caps 0x%x)\n", 697 __func__, mode, ic->ic_modecaps)); 698 return EINVAL; 699 } 700 701 /* 702 * Verify at least one channel is present in the available 703 * channel list before committing to the new mode. 704 */ 705 IASSERT(mode < N(chanflags), ("Unexpected mode %u", mode)); 706 modeflags = chanflags[mode]; 707 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 708 c = &ic->ic_channels[i]; 709 if (mode == IEEE80211_MODE_AUTO) { 710 /* ignore turbo channels for autoselect */ 711 if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0) 712 break; 713 } else { 714 if ((c->ic_flags & modeflags) == modeflags) 715 break; 716 } 717 } 718 if (i > IEEE80211_CHAN_MAX) { 719 IEEE80211_DPRINTF(("%s: no channels found for mode %u\n", 720 __func__, mode)); 721 return EINVAL; 722 } 723 724 /* 725 * Calculate the active channel set. 726 */ 727 memset(ic->ic_chan_active, 0, sizeof(ic->ic_chan_active)); 728 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 729 c = &ic->ic_channels[i]; 730 if (mode == IEEE80211_MODE_AUTO) { 731 /* take anything but pure turbo channels */ 732 if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0) 733 setbit(ic->ic_chan_active, i); 734 } else { 735 if ((c->ic_flags & modeflags) == modeflags) 736 setbit(ic->ic_chan_active, i); 737 } 738 } 739 /* 740 * If no current/default channel is setup or the current 741 * channel is wrong for the mode then pick the first 742 * available channel from the active list. This is likely 743 * not the right one. 744 */ 745 if (ic->ic_ibss_chan == NULL || 746 isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) { 747 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) 748 if (isset(ic->ic_chan_active, i)) { 749 ic->ic_ibss_chan = &ic->ic_channels[i]; 750 break; 751 } 752 IASSERT(ic->ic_ibss_chan != NULL && 753 isset(ic->ic_chan_active, 754 ieee80211_chan2ieee(ic, ic->ic_ibss_chan)), 755 ("Bad IBSS channel %u\n", 756 ieee80211_chan2ieee(ic, ic->ic_ibss_chan))); 757 } 758 759 /* 760 * Set/reset state flags that influence beacon contents, etc. 761 * 762 * XXX what if we have stations already associated??? 763 * XXX probably not right for autoselect? 764 */ 765 if (ic->ic_caps & IEEE80211_C_SHPREAMBLE) 766 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 767 if (mode == IEEE80211_MODE_11G) { 768 if (ic->ic_caps & IEEE80211_C_SHSLOT) 769 ic->ic_flags |= IEEE80211_F_SHSLOT; 770 ieee80211_set11gbasicrates(&ic->ic_sup_rates[mode], 771 IEEE80211_MODE_11G); 772 } else { 773 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 774 } 775 776 ic->ic_curmode = mode; 777 return 0; 778 #undef N 779 } 780 781 /* 782 * Return the phy mode for with the specified channel so the 783 * caller can select a rate set. This is problematic and the 784 * work here assumes how things work elsewhere in this code. 785 * 786 * XXX never returns turbo modes -dcy 787 */ 788 enum ieee80211_phymode 789 ieee80211_chan2mode(struct ieee80211com *ic, struct ieee80211_channel *chan) 790 { 791 /* 792 * NB: this assumes the channel would not be supplied to us 793 * unless it was already compatible with the current mode. 794 */ 795 if (ic->ic_curmode != IEEE80211_MODE_AUTO) 796 return ic->ic_curmode; 797 /* 798 * In autoselect mode; deduce a mode based on the channel 799 * characteristics. We assume that turbo-only channels 800 * are not considered when the channel set is constructed. 801 */ 802 if (IEEE80211_IS_CHAN_5GHZ(chan)) 803 return IEEE80211_MODE_11A; 804 else if (IEEE80211_IS_CHAN_FHSS(chan)) 805 return IEEE80211_MODE_FH; 806 else if (chan->ic_flags & (IEEE80211_CHAN_OFDM|IEEE80211_CHAN_DYN)) 807 return IEEE80211_MODE_11G; 808 else 809 return IEEE80211_MODE_11B; 810 } 811 812 /* 813 * convert IEEE80211 rate value to ifmedia subtype. 814 * ieee80211 rate is in unit of 0.5Mbps. 815 */ 816 int 817 ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode mode) 818 { 819 #define N(a) (sizeof(a) / sizeof(a[0])) 820 static const struct { 821 u_int m; /* rate + mode */ 822 u_int r; /* if_media rate */ 823 } rates[] = { 824 { 2 | IFM_IEEE80211_FH, IFM_IEEE80211_FH1 }, 825 { 4 | IFM_IEEE80211_FH, IFM_IEEE80211_FH2 }, 826 { 2 | IFM_IEEE80211_11B, IFM_IEEE80211_DS1 }, 827 { 4 | IFM_IEEE80211_11B, IFM_IEEE80211_DS2 }, 828 { 11 | IFM_IEEE80211_11B, IFM_IEEE80211_DS5 }, 829 { 22 | IFM_IEEE80211_11B, IFM_IEEE80211_DS11 }, 830 { 44 | IFM_IEEE80211_11B, IFM_IEEE80211_DS22 }, 831 { 12 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM6 }, 832 { 18 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM9 }, 833 { 24 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM12 }, 834 { 36 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM18 }, 835 { 48 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM24 }, 836 { 72 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM36 }, 837 { 96 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM48 }, 838 { 108 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM54 }, 839 { 2 | IFM_IEEE80211_11G, IFM_IEEE80211_DS1 }, 840 { 4 | IFM_IEEE80211_11G, IFM_IEEE80211_DS2 }, 841 { 11 | IFM_IEEE80211_11G, IFM_IEEE80211_DS5 }, 842 { 22 | IFM_IEEE80211_11G, IFM_IEEE80211_DS11 }, 843 { 12 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM6 }, 844 { 18 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM9 }, 845 { 24 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM12 }, 846 { 36 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM18 }, 847 { 48 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM24 }, 848 { 72 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM36 }, 849 { 96 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM48 }, 850 { 108 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM54 }, 851 /* NB: OFDM72 doesn't realy exist so we don't handle it */ 852 }; 853 u_int mask, i; 854 855 mask = rate & IEEE80211_RATE_VAL; 856 switch (mode) { 857 case IEEE80211_MODE_11A: 858 case IEEE80211_MODE_TURBO: 859 mask |= IFM_IEEE80211_11A; 860 break; 861 case IEEE80211_MODE_11B: 862 mask |= IFM_IEEE80211_11B; 863 break; 864 case IEEE80211_MODE_FH: 865 mask |= IFM_IEEE80211_FH; 866 break; 867 case IEEE80211_MODE_AUTO: 868 /* NB: ic may be NULL for some drivers */ 869 if (ic && ic->ic_phytype == IEEE80211_T_FH) { 870 mask |= IFM_IEEE80211_FH; 871 break; 872 } 873 /* NB: hack, 11g matches both 11b+11a rates */ 874 /* fall thru... */ 875 case IEEE80211_MODE_11G: 876 mask |= IFM_IEEE80211_11G; 877 break; 878 } 879 for (i = 0; i < N(rates); i++) 880 if (rates[i].m == mask) 881 return rates[i].r; 882 return IFM_AUTO; 883 #undef N 884 } 885 886 int 887 ieee80211_media2rate(int mword) 888 { 889 #define N(a) (sizeof(a) / sizeof(a[0])) 890 int i; 891 static const struct { 892 int subtype; 893 int rate; 894 } ieeerates[] = { 895 { IFM_AUTO, -1 }, 896 { IFM_MANUAL, 0 }, 897 { IFM_NONE, 0 }, 898 { IFM_IEEE80211_FH1, 2 }, 899 { IFM_IEEE80211_FH2, 4 }, 900 { IFM_IEEE80211_DS1, 2 }, 901 { IFM_IEEE80211_DS2, 4 }, 902 { IFM_IEEE80211_DS5, 11 }, 903 { IFM_IEEE80211_DS11, 22 }, 904 { IFM_IEEE80211_DS22, 44 }, 905 { IFM_IEEE80211_OFDM6, 12 }, 906 { IFM_IEEE80211_OFDM9, 18 }, 907 { IFM_IEEE80211_OFDM12, 24 }, 908 { IFM_IEEE80211_OFDM18, 36 }, 909 { IFM_IEEE80211_OFDM24, 48 }, 910 { IFM_IEEE80211_OFDM36, 72 }, 911 { IFM_IEEE80211_OFDM48, 96 }, 912 { IFM_IEEE80211_OFDM54, 108 }, 913 { IFM_IEEE80211_OFDM72, 144 }, 914 }; 915 for (i = 0; i < N(ieeerates); i++) { 916 if (ieeerates[i].subtype == IFM_SUBTYPE(mword)) 917 return ieeerates[i].rate; 918 } 919 return 0; 920 #undef N 921 } 922 923 #ifdef __NetBSD__ 924 struct ieee80211_node_walk { 925 struct ieee80211com *nw_ic; 926 struct ieee80211_node *nw_ni; 927 u_short nw_ifindex; 928 }; 929 930 /* TBD factor with sysctl_ath_verify. */ 931 static int 932 sysctl_ieee80211_verify(SYSCTLFN_ARGS) 933 { 934 int error, t; 935 struct sysctlnode node; 936 937 node = *rnode; 938 t = *(int*)rnode->sysctl_data; 939 node.sysctl_data = &t; 940 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 941 if (error || newp == NULL) 942 return (error); 943 944 IEEE80211_DPRINTF(("%s: t = %d, nodenum = %d, rnodenum = %d\n", 945 __func__, t, node.sysctl_num, rnode->sysctl_num)); 946 947 if (node.sysctl_num == ieee80211_inact_max_nodenum) { 948 if (t < 1) 949 return (EINVAL); 950 t = roundup(t, IEEE80211_INACT_WAIT) / IEEE80211_INACT_WAIT; 951 #ifdef IEEE80211_DEBUG 952 } else if (node.sysctl_num == ieee80211_debug_nodenum) { 953 if (t < 0 || t > 2) 954 return (EINVAL); 955 #endif /* IEEE80211_DEBUG */ 956 } else 957 return (EINVAL); 958 959 *(int*)rnode->sysctl_data = t; 960 961 return (0); 962 } 963 964 static struct ieee80211_node * 965 ieee80211_node_walkfirst(struct ieee80211_node_walk *nw, 966 u_short if_index) 967 { 968 struct ieee80211com *ic; 969 (void)memset(nw, 0, sizeof(*nw)); 970 971 nw->nw_ifindex = if_index; 972 973 LIST_FOREACH(ic, &ieee80211com_head, ic_list) { 974 IEEE80211_DPRINTF(("%s: visiting ic %p\n", __func__, ic)); 975 if (if_index != 0 && ic->ic_if.if_index != if_index) { 976 IEEE80211_DPRINTF(("%s: wrong ifindex, " 977 "skipping ic %p\n", __func__, ic)); 978 continue; 979 } 980 nw->nw_ic = ic; 981 nw->nw_ni = ic->ic_bss; 982 } 983 IEEE80211_DPRINTF(("%s: ic %p ni %p\n", __func__, nw->nw_ic, 984 nw->nw_ni)); 985 return nw->nw_ni; 986 } 987 988 static struct ieee80211_node * 989 ieee80211_node_walknext(struct ieee80211_node_walk *nw) 990 { 991 KASSERT(nw->nw_ic != NULL && nw->nw_ni != NULL); 992 993 if (nw->nw_ni == nw->nw_ic->ic_bss) 994 nw->nw_ni = TAILQ_FIRST(&nw->nw_ic->ic_node); 995 else 996 nw->nw_ni = TAILQ_NEXT(nw->nw_ni, ni_list); 997 998 while (nw->nw_ni == NULL) { 999 if (nw->nw_ifindex != 0) 1000 return NULL; 1001 1002 nw->nw_ic = LIST_NEXT(nw->nw_ic, ic_list); 1003 if (nw->nw_ic == NULL) 1004 return NULL; 1005 1006 nw->nw_ni = TAILQ_FIRST(&nw->nw_ic->ic_node); 1007 } 1008 1009 IEEE80211_DPRINTF(("%s: ic %p bss %p ni %p\n", __func__, nw->nw_ic, 1010 nw->nw_ic->ic_bss, nw->nw_ni)); 1011 1012 return nw->nw_ni; 1013 } 1014 1015 static void 1016 sysctl_ieee80211_fill_node(struct ieee80211_node *ni, 1017 struct ieee80211_node_sysctl *ns, int ifindex, 1018 struct ieee80211_channel *chan0) 1019 { 1020 ns->ns_ifindex = ifindex; 1021 ns->ns_capinfo = ni->ni_capinfo; 1022 (void)memcpy(ns->ns_macaddr, ni->ni_macaddr, sizeof(ns->ns_macaddr)); 1023 (void)memcpy(ns->ns_bssid, ni->ni_bssid, sizeof(ns->ns_bssid)); 1024 if (ni->ni_chan != IEEE80211_CHAN_ANYC) { 1025 ns->ns_freq = ni->ni_chan->ic_freq; 1026 ns->ns_chanflags = ni->ni_chan->ic_flags; 1027 ns->ns_chanidx = ni->ni_chan - chan0; 1028 } else { 1029 ns->ns_freq = ns->ns_chanflags = 0; 1030 ns->ns_chanidx = 0; 1031 } 1032 ns->ns_rssi = ni->ni_rssi; 1033 ns->ns_esslen = ni->ni_esslen; 1034 (void)memcpy(ns->ns_essid, ni->ni_essid, sizeof(ns->ns_essid)); 1035 ns->ns_pwrsave = ni->ni_pwrsave; 1036 ns->ns_erp = ni->ni_erp; 1037 ns->ns_associd = ni->ni_associd; 1038 ns->ns_inact = ni->ni_inact * IEEE80211_INACT_WAIT; 1039 ns->ns_rstamp = ni->ni_rstamp; 1040 ns->ns_rates = ni->ni_rates; 1041 ns->ns_txrate = ni->ni_txrate; 1042 ns->ns_intval = ni->ni_intval; 1043 (void)memcpy(ns->ns_tstamp, ni->ni_tstamp, sizeof(ns->ns_tstamp)); 1044 ns->ns_txseq = ni->ni_txseq; 1045 ns->ns_rxseq = ni->ni_rxseq; 1046 ns->ns_fhdwell = ni->ni_fhdwell; 1047 ns->ns_fhindex = ni->ni_fhindex; 1048 ns->ns_fails = ni->ni_fails; 1049 } 1050 1051 #define IEEE80211_SYSCTL_NODE_GROWTH 10 1052 1053 static int 1054 sysctl_ieee80211_node(SYSCTLFN_ARGS) 1055 { 1056 struct ieee80211_node_walk nw; 1057 struct ieee80211_node *ni; 1058 struct ieee80211_node_sysctl ns; 1059 char *dp; 1060 u_int cur_ifindex, ifcount, ifindex, last_ifindex, op, arg, hdr_type; 1061 size_t len, needed, eltsize, out_size; 1062 int error, s, nelt; 1063 1064 if (namelen == 1 && name[0] == CTL_QUERY) 1065 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1066 1067 if (namelen != IEEE80211_SYSCTL_NODENAMELEN) 1068 return (EINVAL); 1069 1070 /* ifindex.op.arg.header.eltsize.nelt */ 1071 dp = oldp; 1072 len = (oldp != NULL) ? *oldlenp : 0; 1073 ifindex = name[IEEE80211_SYSCTL_NODENAME_IF]; 1074 op = name[IEEE80211_SYSCTL_NODENAME_OP]; 1075 arg = name[IEEE80211_SYSCTL_NODENAME_ARG]; 1076 hdr_type = name[IEEE80211_SYSCTL_NODENAME_TYPE]; 1077 eltsize = name[IEEE80211_SYSCTL_NODENAME_ELTSIZE]; 1078 nelt = name[IEEE80211_SYSCTL_NODENAME_ELTCOUNT]; 1079 out_size = MIN(sizeof(ns), eltsize); 1080 1081 IEEE80211_DPRINTF(("%s: ifindex %u op %u arg %u hdr_type %u eltsize %u " 1082 "nelt %d out_size %u\n", __func__, ifindex, op, arg, hdr_type, 1083 eltsize, nelt, out_size)); 1084 1085 if (op != IEEE80211_SYSCTL_OP_ALL || arg != 0 || 1086 hdr_type != IEEE80211_SYSCTL_T_NODE || eltsize < 1 || nelt < 0) 1087 return (EINVAL); 1088 1089 error = 0; 1090 needed = 0; 1091 ifcount = 0; 1092 last_ifindex = 0; 1093 1094 s = splnet(); 1095 1096 for (ni = ieee80211_node_walkfirst(&nw, ifindex); ni != NULL; 1097 ni = ieee80211_node_walknext(&nw)) { 1098 struct ieee80211com *ic; 1099 1100 ic = nw.nw_ic; 1101 cur_ifindex = ic->ic_if.if_index; 1102 1103 IEEE80211_DPRINTF(("%s: visit ic %p idx %u\n", __func__, ic, 1104 cur_ifindex)); 1105 1106 if (cur_ifindex != last_ifindex) { 1107 ifcount++; 1108 last_ifindex = cur_ifindex; 1109 } 1110 1111 IEEE80211_DPRINTF(("%s: ni %p dp %p len %u nelt %d\n", 1112 __func__, ni, dp, len, nelt)); 1113 1114 if (len >= eltsize && nelt > 0) { 1115 sysctl_ieee80211_fill_node(ni, &ns, cur_ifindex, 1116 &ic->ic_channels[0]); 1117 error = copyout(&ns, dp, out_size); 1118 if (error) 1119 goto cleanup; 1120 dp += eltsize; 1121 len -= eltsize; 1122 } 1123 if (nelt > 0) { 1124 needed += eltsize; 1125 if (nelt != INT_MAX) 1126 nelt--; 1127 } 1128 IEEE80211_DPRINTF(("%s: needed %u\n", __func__, needed)); 1129 } 1130 IEEE80211_DPRINTF(("%s: %u interfaces\n", __func__, ifcount)); 1131 cleanup: 1132 splx(s); 1133 1134 *oldlenp = needed; 1135 if (oldp == NULL) 1136 *oldlenp += ifcount * IEEE80211_SYSCTL_NODE_GROWTH * eltsize; 1137 1138 return (error); 1139 } 1140 1141 /* 1142 * Setup sysctl(3) MIB, net.ieee80211.* 1143 * 1144 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 1145 */ 1146 SYSCTL_SETUP(sysctl_ieee80211, "sysctl ieee80211 subtree setup") 1147 { 1148 int rc; 1149 struct sysctlnode *cnode, *rnode; 1150 1151 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 1152 CTLFLAG_PERMANENT, CTLTYPE_NODE, "net", NULL, 1153 NULL, 0, NULL, 0, CTL_NET, CTL_EOL)) != 0) 1154 goto err; 1155 1156 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 1157 CTLFLAG_PERMANENT, CTLTYPE_NODE, "link", NULL, 1158 NULL, 0, NULL, 0, PF_LINK, CTL_EOL)) != 0) 1159 goto err; 1160 1161 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 1162 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee80211", NULL, 1163 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 1164 goto err; 1165 1166 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 1167 CTLFLAG_PERMANENT, CTLTYPE_NODE, "nodes", NULL, 1168 sysctl_ieee80211_node, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 1169 goto err; 1170 1171 #ifdef IEEE80211_DEBUG 1172 1173 /* control debugging printfs */ 1174 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 1175 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 1176 "debug", NULL, sysctl_ieee80211_verify, 0, &ieee80211_debug, 0, 1177 CTL_CREATE, CTL_EOL)) != 0) 1178 goto err; 1179 1180 ieee80211_debug_nodenum = cnode->sysctl_num; 1181 1182 #endif /* IEEE80211_DEBUG */ 1183 1184 /* control inactivity timer */ 1185 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 1186 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 1187 "maxinact", NULL, sysctl_ieee80211_verify, 0, &ieee80211_inact_max, 1188 0, CTL_CREATE, CTL_EOL)) != 0) 1189 goto err; 1190 1191 ieee80211_inact_max_nodenum = cnode->sysctl_num; 1192 1193 return; 1194 err: 1195 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 1196 } 1197 #endif /* __NetBSD__ */ 1198 1199 #ifdef __FreeBSD__ 1200 /* 1201 * Module glue. 1202 * 1203 * NB: the module name is "wlan" for compatibility with NetBSD. 1204 */ 1205 1206 static int 1207 ieee80211_modevent(module_t mod, int type, void *unused) 1208 { 1209 switch (type) { 1210 case MOD_LOAD: 1211 if (bootverbose) 1212 printf("wlan: <802.11 Link Layer>\n"); 1213 return 0; 1214 case MOD_UNLOAD: 1215 return 0; 1216 } 1217 return EINVAL; 1218 } 1219 1220 static moduledata_t ieee80211_mod = { 1221 "wlan", 1222 ieee80211_modevent, 1223 0 1224 }; 1225 DECLARE_MODULE(wlan, ieee80211_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 1226 MODULE_VERSION(wlan, 1); 1227 MODULE_DEPEND(wlan, rc4, 1, 1, 1); 1228 MODULE_DEPEND(wlan, ether, 1, 1, 1); 1229 #endif 1230
Indexes created Tue Sep 23 14:10:03 GMT 2025