1 /* 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2005 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 * Alternatively, this software may be distributed under the terms of the 18 * GNU General Public License ("GPL") version 2 as published by the Free 19 * Software Foundation. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: src/sys/net80211/ieee80211_proto.c,v 1.17.2.9 2006/03/13 03:10:31 sam Exp $ 33 * $DragonFly: src/sys/netproto/802_11/wlan/ieee80211_proto.c,v 1.2 2006/05/18 13:51:46 sephe Exp $ 34 */ 35 36 /* 37 * IEEE 802.11 protocol support. 38 */ 39 40 #include "opt_inet.h" 41 42 #include <sys/param.h> 43 #include <sys/kernel.h> 44 #include <sys/systm.h> 45 #include <sys/serialize.h> 46 47 #include <sys/socket.h> 48 49 #include <net/if.h> 50 #include <net/if_arp.h> 51 #include <net/if_media.h> 52 #include <net/ethernet.h> /* XXX for ether_sprintf */ 53 54 #include <netproto/802_11/ieee80211_var.h> 55 56 /* XXX tunables */ 57 #define AGGRESSIVE_MODE_SWITCH_HYSTERESIS 3 /* pkts / 100ms */ 58 #define HIGH_PRI_SWITCH_THRESH 10 /* pkts / 100ms */ 59 60 #define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2) 61 62 const char *ieee80211_mgt_subtype_name[] = { 63 "assoc_req", "assoc_resp", "reassoc_req", "reassoc_resp", 64 "probe_req", "probe_resp", "reserved#6", "reserved#7", 65 "beacon", "atim", "disassoc", "auth", 66 "deauth", "reserved#13", "reserved#14", "reserved#15" 67 }; 68 const char *ieee80211_ctl_subtype_name[] = { 69 "reserved#0", "reserved#1", "reserved#2", "reserved#3", 70 "reserved#3", "reserved#5", "reserved#6", "reserved#7", 71 "reserved#8", "reserved#9", "ps_poll", "rts", 72 "cts", "ack", "cf_end", "cf_end_ack" 73 }; 74 const char *ieee80211_state_name[IEEE80211_S_MAX] = { 75 "INIT", /* IEEE80211_S_INIT */ 76 "SCAN", /* IEEE80211_S_SCAN */ 77 "AUTH", /* IEEE80211_S_AUTH */ 78 "ASSOC", /* IEEE80211_S_ASSOC */ 79 "RUN" /* IEEE80211_S_RUN */ 80 }; 81 const char *ieee80211_wme_acnames[] = { 82 "WME_AC_BE", 83 "WME_AC_BK", 84 "WME_AC_VI", 85 "WME_AC_VO", 86 "WME_UPSD", 87 }; 88 89 static int ieee80211_newstate(struct ieee80211com *, enum ieee80211_state, int); 90 91 void 92 ieee80211_proto_attach(struct ieee80211com *ic) 93 { 94 struct ifnet *ifp = ic->ic_ifp; 95 96 /* XXX room for crypto */ 97 ifp->if_hdrlen = sizeof(struct ieee80211_qosframe_addr4); 98 99 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 100 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT; 101 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 102 ic->ic_bmiss_max = IEEE80211_BMISS_MAX; 103 callout_init(&ic->ic_swbmiss); 104 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT; 105 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 106 ic->ic_roaming = IEEE80211_ROAMING_AUTO; 107 108 ic->ic_wme.wme_hipri_switch_hysteresis = 109 AGGRESSIVE_MODE_SWITCH_HYSTERESIS; 110 111 /* protocol state change handler */ 112 ic->ic_newstate = ieee80211_newstate; 113 114 /* initialize management frame handlers */ 115 ic->ic_recv_mgmt = ieee80211_recv_mgmt; 116 ic->ic_send_mgmt = ieee80211_send_mgmt; 117 } 118 119 void 120 ieee80211_proto_detach(struct ieee80211com *ic) 121 { 122 123 /* 124 * This should not be needed as we detach when reseting 125 * the state but be conservative here since the 126 * authenticator may do things like spawn kernel threads. 127 */ 128 if (ic->ic_auth->ia_detach) 129 ic->ic_auth->ia_detach(ic); 130 131 IF_DRAIN(&ic->ic_mgtq); 132 133 /* 134 * Detach any ACL'ator. 135 */ 136 if (ic->ic_acl != NULL) 137 ic->ic_acl->iac_detach(ic); 138 } 139 140 /* 141 * Simple-minded authenticator module support. 142 */ 143 144 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1) 145 /* XXX well-known names */ 146 static const char *auth_modnames[IEEE80211_AUTH_MAX] = { 147 "wlan_internal", /* IEEE80211_AUTH_NONE */ 148 "wlan_internal", /* IEEE80211_AUTH_OPEN */ 149 "wlan_internal", /* IEEE80211_AUTH_SHARED */ 150 "wlan_xauth", /* IEEE80211_AUTH_8021X */ 151 "wlan_internal", /* IEEE80211_AUTH_AUTO */ 152 "wlan_xauth", /* IEEE80211_AUTH_WPA */ 153 }; 154 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX]; 155 156 static const struct ieee80211_authenticator auth_internal = { 157 .ia_name = "wlan_internal", 158 .ia_attach = NULL, 159 .ia_detach = NULL, 160 .ia_node_join = NULL, 161 .ia_node_leave = NULL, 162 }; 163 164 /* 165 * Setup internal authenticators once; they are never unregistered. 166 */ 167 static void 168 ieee80211_auth_setup(void) 169 { 170 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal); 171 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal); 172 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal); 173 } 174 SYSINIT(wlan_auth, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_auth_setup, NULL); 175 176 const struct ieee80211_authenticator * 177 ieee80211_authenticator_get(int auth) 178 { 179 if (auth >= IEEE80211_AUTH_MAX) 180 return NULL; 181 if (authenticators[auth] == NULL) 182 ieee80211_load_module(auth_modnames[auth]); 183 return authenticators[auth]; 184 } 185 186 void 187 ieee80211_authenticator_register(int type, 188 const struct ieee80211_authenticator *auth) 189 { 190 if (type >= IEEE80211_AUTH_MAX) 191 return; 192 authenticators[type] = auth; 193 } 194 195 void 196 ieee80211_authenticator_unregister(int type) 197 { 198 199 if (type >= IEEE80211_AUTH_MAX) 200 return; 201 authenticators[type] = NULL; 202 } 203 204 /* 205 * Very simple-minded ACL module support. 206 */ 207 /* XXX just one for now */ 208 static const struct ieee80211_aclator *acl = NULL; 209 210 void 211 ieee80211_aclator_register(const struct ieee80211_aclator *iac) 212 { 213 printf("wlan: %s acl policy registered\n", iac->iac_name); 214 acl = iac; 215 } 216 217 void 218 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac) 219 { 220 if (acl == iac) 221 acl = NULL; 222 printf("wlan: %s acl policy unregistered\n", iac->iac_name); 223 } 224 225 const struct ieee80211_aclator * 226 ieee80211_aclator_get(const char *name) 227 { 228 if (acl == NULL) 229 ieee80211_load_module("wlan_acl"); 230 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL; 231 } 232 233 void 234 ieee80211_print_essid(const uint8_t *essid, int len) 235 { 236 const uint8_t *p; 237 int i; 238 239 if (len > IEEE80211_NWID_LEN) 240 len = IEEE80211_NWID_LEN; 241 /* determine printable or not */ 242 for (i = 0, p = essid; i < len; i++, p++) { 243 if (*p < ' ' || *p > 0x7e) 244 break; 245 } 246 if (i == len) { 247 printf("\""); 248 for (i = 0, p = essid; i < len; i++, p++) 249 printf("%c", *p); 250 printf("\""); 251 } else { 252 printf("0x"); 253 for (i = 0, p = essid; i < len; i++, p++) 254 printf("%02x", *p); 255 } 256 } 257 258 void 259 ieee80211_dump_pkt(const uint8_t *buf, int len, int rate, int rssi) 260 { 261 const struct ieee80211_frame *wh; 262 int i; 263 264 wh = (const struct ieee80211_frame *)buf; 265 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 266 case IEEE80211_FC1_DIR_NODS: 267 printf("NODS %6D", wh->i_addr2, ":"); 268 printf("->%6D", wh->i_addr1, ":"); 269 printf("(%6D)", wh->i_addr3, ":"); 270 break; 271 case IEEE80211_FC1_DIR_TODS: 272 printf("TODS %6D", wh->i_addr2, ":"); 273 printf("->%6D", wh->i_addr3, ":"); 274 printf("(%6D)", wh->i_addr1, ":"); 275 break; 276 case IEEE80211_FC1_DIR_FROMDS: 277 printf("FRDS %6D", wh->i_addr3, ":"); 278 printf("->%6D", wh->i_addr1, ":"); 279 printf("(%6D)", wh->i_addr2, ":"); 280 break; 281 case IEEE80211_FC1_DIR_DSTODS: 282 printf("DSDS %6D", (const uint8_t *)&wh[1], ":"); 283 printf("->%6D", wh->i_addr3, ":"); 284 printf("(%6D", wh->i_addr2, ":"); 285 printf("->%6D)", wh->i_addr1, ":"); 286 break; 287 } 288 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 289 case IEEE80211_FC0_TYPE_DATA: 290 printf(" data"); 291 break; 292 case IEEE80211_FC0_TYPE_MGT: 293 printf(" %s", ieee80211_mgt_subtype_name[ 294 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 295 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 296 break; 297 default: 298 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 299 break; 300 } 301 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 302 int i; 303 printf(" WEP [IV"); 304 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) 305 printf(" %.02x", buf[sizeof(*wh)+i]); 306 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6); 307 } 308 if (rate >= 0) 309 printf(" %dM", rate / 2); 310 if (rssi >= 0) 311 printf(" +%d", rssi); 312 printf("\n"); 313 if (len > 0) { 314 for (i = 0; i < len; i++) { 315 if ((i & 1) == 0) 316 printf(" "); 317 printf("%02x", buf[i]); 318 } 319 printf("\n"); 320 } 321 } 322 323 int 324 ieee80211_fix_rate(struct ieee80211_node *ni, int flags) 325 { 326 #define RV(v) ((v) & IEEE80211_RATE_VAL) 327 struct ieee80211com *ic = ni->ni_ic; 328 int i, j, ignore, error; 329 int okrate, badrate, fixedrate; 330 struct ieee80211_rateset *srs, *nrs; 331 uint8_t r; 332 333 /* 334 * If the fixed rate check was requested but no 335 * fixed has been defined then just remove it. 336 */ 337 if ((flags & IEEE80211_F_DOFRATE) && 338 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 339 flags &= ~IEEE80211_F_DOFRATE; 340 error = 0; 341 okrate = badrate = fixedrate = 0; 342 srs = &ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 343 nrs = &ni->ni_rates; 344 for (i = 0; i < nrs->rs_nrates; ) { 345 ignore = 0; 346 if (flags & IEEE80211_F_DOSORT) { 347 /* 348 * Sort rates. 349 */ 350 for (j = i + 1; j < nrs->rs_nrates; j++) { 351 if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) { 352 r = nrs->rs_rates[i]; 353 nrs->rs_rates[i] = nrs->rs_rates[j]; 354 nrs->rs_rates[j] = r; 355 } 356 } 357 } 358 r = nrs->rs_rates[i] & IEEE80211_RATE_VAL; 359 badrate = r; 360 if (flags & IEEE80211_F_DOFRATE) { 361 /* 362 * Check any fixed rate is included. 363 */ 364 if (r == RV(srs->rs_rates[ic->ic_fixed_rate])) 365 fixedrate = r; 366 } 367 if (flags & IEEE80211_F_DONEGO) { 368 /* 369 * Check against supported rates. 370 */ 371 for (j = 0; j < srs->rs_nrates; j++) { 372 if (r == RV(srs->rs_rates[j])) { 373 /* 374 * Overwrite with the supported rate 375 * value so any basic rate bit is set. 376 * This insures that response we send 377 * to stations have the necessary basic 378 * rate bit set. 379 */ 380 nrs->rs_rates[i] = srs->rs_rates[j]; 381 break; 382 } 383 } 384 if (j == srs->rs_nrates) { 385 /* 386 * A rate in the node's rate set is not 387 * supported. If this is a basic rate and we 388 * are operating as an AP then this is an error. 389 * Otherwise we just discard/ignore the rate. 390 * Note that this is important for 11b stations 391 * when they want to associate with an 11g AP. 392 */ 393 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 394 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC)) 395 error++; 396 ignore++; 397 } 398 } 399 if (flags & IEEE80211_F_DODEL) { 400 /* 401 * Delete unacceptable rates. 402 */ 403 if (ignore) { 404 nrs->rs_nrates--; 405 for (j = i; j < nrs->rs_nrates; j++) 406 nrs->rs_rates[j] = nrs->rs_rates[j + 1]; 407 nrs->rs_rates[j] = 0; 408 continue; 409 } 410 } 411 if (!ignore) 412 okrate = nrs->rs_rates[i]; 413 i++; 414 } 415 if (okrate == 0 || error != 0 || 416 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 417 return badrate | IEEE80211_RATE_BASIC; 418 else 419 return RV(okrate); 420 #undef RV 421 } 422 423 /* 424 * Reset 11g-related state. 425 */ 426 void 427 ieee80211_reset_erp(struct ieee80211com *ic) 428 { 429 ic->ic_flags &= ~IEEE80211_F_USEPROT; 430 ic->ic_nonerpsta = 0; 431 ic->ic_longslotsta = 0; 432 /* 433 * Short slot time is enabled only when operating in 11g 434 * and not in an IBSS. We must also honor whether or not 435 * the driver is capable of doing it. 436 */ 437 ieee80211_set_shortslottime(ic, 438 ic->ic_curmode == IEEE80211_MODE_11A || 439 (ic->ic_curmode == IEEE80211_MODE_11G && 440 ic->ic_opmode == IEEE80211_M_HOSTAP && 441 (ic->ic_caps & IEEE80211_C_SHSLOT))); 442 /* 443 * Set short preamble and ERP barker-preamble flags. 444 */ 445 if (ic->ic_curmode == IEEE80211_MODE_11A || 446 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 447 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 448 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 449 } else { 450 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 451 ic->ic_flags |= IEEE80211_F_USEBARKER; 452 } 453 } 454 455 /* 456 * Set the short slot time state and notify the driver. 457 */ 458 void 459 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff) 460 { 461 if (onoff) 462 ic->ic_flags |= IEEE80211_F_SHSLOT; 463 else 464 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 465 /* notify driver */ 466 if (ic->ic_updateslot != NULL) 467 ic->ic_updateslot(ic->ic_ifp); 468 } 469 470 /* 471 * Check if the specified rate set supports ERP. 472 * NB: the rate set is assumed to be sorted. 473 */ 474 int 475 ieee80211_iserp_rateset(struct ieee80211com *ic, struct ieee80211_rateset *rs) 476 { 477 #define N(a) (sizeof(a) / sizeof(a[0])) 478 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 479 int i, j; 480 481 if (rs->rs_nrates < N(rates)) 482 return 0; 483 for (i = 0; i < N(rates); i++) { 484 for (j = 0; j < rs->rs_nrates; j++) { 485 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 486 if (rates[i] == r) 487 goto next; 488 if (r > rates[i]) 489 return 0; 490 } 491 return 0; 492 next: 493 ; 494 } 495 return 1; 496 #undef N 497 } 498 499 /* 500 * Mark the basic rates for the 11g rate table based on the 501 * operating mode. For real 11g we mark all the 11b rates 502 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 503 * 11b rates. There's also a pseudo 11a-mode used to mark only 504 * the basic OFDM rates. 505 */ 506 void 507 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 508 { 509 static const struct ieee80211_rateset basic[] = { 510 { 0 }, /* IEEE80211_MODE_AUTO */ 511 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 512 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 513 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 514 { 0 }, /* IEEE80211_MODE_FH */ 515 /* IEEE80211_MODE_PUREG (not yet) */ 516 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 517 }; 518 int i, j; 519 520 for (i = 0; i < rs->rs_nrates; i++) { 521 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 522 for (j = 0; j < basic[mode].rs_nrates; j++) 523 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 524 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 525 break; 526 } 527 } 528 } 529 530 /* 531 * WME protocol support. The following parameters come from the spec. 532 */ 533 typedef struct phyParamType { 534 uint8_t aifsn; 535 uint8_t logcwmin; 536 uint8_t logcwmax; 537 uint16_t txopLimit; 538 uint8_t acm; 539 } paramType; 540 541 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 542 { 3, 4, 6 }, /* IEEE80211_MODE_AUTO */ 543 { 3, 4, 6 }, /* IEEE80211_MODE_11A */ 544 { 3, 5, 7 }, /* IEEE80211_MODE_11B */ 545 { 3, 4, 6 }, /* IEEE80211_MODE_11G */ 546 { 3, 5, 7 }, /* IEEE80211_MODE_FH */ 547 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_A */ 548 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_G */ 549 }; 550 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 551 { 7, 4, 10 }, /* IEEE80211_MODE_AUTO */ 552 { 7, 4, 10 }, /* IEEE80211_MODE_11A */ 553 { 7, 5, 10 }, /* IEEE80211_MODE_11B */ 554 { 7, 4, 10 }, /* IEEE80211_MODE_11G */ 555 { 7, 5, 10 }, /* IEEE80211_MODE_FH */ 556 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 557 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 558 }; 559 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 560 { 1, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 561 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 562 { 1, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 563 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 564 { 1, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 565 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 566 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 567 }; 568 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 569 { 1, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 570 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 571 { 1, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 572 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 573 { 1, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 574 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 575 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 576 }; 577 578 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 579 { 3, 4, 10 }, /* IEEE80211_MODE_AUTO */ 580 { 3, 4, 10 }, /* IEEE80211_MODE_11A */ 581 { 3, 5, 10 }, /* IEEE80211_MODE_11B */ 582 { 3, 4, 10 }, /* IEEE80211_MODE_11G */ 583 { 3, 5, 10 }, /* IEEE80211_MODE_FH */ 584 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 585 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 586 }; 587 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 588 { 2, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 589 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 590 { 2, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 591 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 592 { 2, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 593 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 594 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 595 }; 596 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 597 { 2, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 598 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 599 { 2, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 600 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 601 { 2, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 602 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 603 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 604 }; 605 606 void 607 ieee80211_wme_initparams(struct ieee80211com *ic) 608 { 609 struct ieee80211_wme_state *wme = &ic->ic_wme; 610 const paramType *pPhyParam, *pBssPhyParam; 611 struct wmeParams *wmep; 612 int i; 613 614 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 615 return; 616 617 for (i = 0; i < WME_NUM_AC; i++) { 618 switch (i) { 619 case WME_AC_BK: 620 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 621 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 622 break; 623 case WME_AC_VI: 624 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 625 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 626 break; 627 case WME_AC_VO: 628 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 629 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 630 break; 631 case WME_AC_BE: 632 default: 633 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 634 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 635 break; 636 } 637 638 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 639 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 640 wmep->wmep_acm = pPhyParam->acm; 641 wmep->wmep_aifsn = pPhyParam->aifsn; 642 wmep->wmep_logcwmin = pPhyParam->logcwmin; 643 wmep->wmep_logcwmax = pPhyParam->logcwmax; 644 wmep->wmep_txopLimit = pPhyParam->txopLimit; 645 } else { 646 wmep->wmep_acm = pBssPhyParam->acm; 647 wmep->wmep_aifsn = pBssPhyParam->aifsn; 648 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 649 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 650 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 651 652 } 653 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 654 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 655 "log2(cwmax) %u txpoLimit %u]\n", __func__ 656 , ieee80211_wme_acnames[i] 657 , wmep->wmep_acm 658 , wmep->wmep_aifsn 659 , wmep->wmep_logcwmin 660 , wmep->wmep_logcwmax 661 , wmep->wmep_txopLimit 662 ); 663 664 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 665 wmep->wmep_acm = pBssPhyParam->acm; 666 wmep->wmep_aifsn = pBssPhyParam->aifsn; 667 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 668 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 669 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 670 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 671 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 672 "log2(cwmax) %u txpoLimit %u]\n", __func__ 673 , ieee80211_wme_acnames[i] 674 , wmep->wmep_acm 675 , wmep->wmep_aifsn 676 , wmep->wmep_logcwmin 677 , wmep->wmep_logcwmax 678 , wmep->wmep_txopLimit 679 ); 680 } 681 /* NB: check ic_bss to avoid NULL deref on initial attach */ 682 if (ic->ic_bss != NULL) { 683 /* 684 * Calculate agressive mode switching threshold based 685 * on beacon interval. This doesn't need locking since 686 * we're only called before entering the RUN state at 687 * which point we start sending beacon frames. 688 */ 689 wme->wme_hipri_switch_thresh = 690 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 691 ieee80211_wme_updateparams(ic); 692 } 693 } 694 695 /* 696 * Update WME parameters for ourself and the BSS. 697 */ 698 void 699 ieee80211_wme_updateparams(struct ieee80211com *ic) 700 { 701 static const paramType phyParam[IEEE80211_MODE_MAX] = { 702 { 2, 4, 10, 64 }, /* IEEE80211_MODE_AUTO */ 703 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11A */ 704 { 2, 5, 10, 64 }, /* IEEE80211_MODE_11B */ 705 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11G */ 706 { 2, 5, 10, 64 }, /* IEEE80211_MODE_FH */ 707 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_A */ 708 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_G */ 709 }; 710 struct ieee80211_wme_state *wme = &ic->ic_wme; 711 const struct wmeParams *wmep; 712 struct wmeParams *chanp, *bssp; 713 int i; 714 715 ASSERT_SERIALIZED(ic->ic_ifp->if_serializer); 716 717 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 718 return; 719 720 /* set up the channel access parameters for the physical device */ 721 for (i = 0; i < WME_NUM_AC; i++) { 722 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 723 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 724 chanp->wmep_aifsn = wmep->wmep_aifsn; 725 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 726 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 727 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 728 729 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 730 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 731 chanp->wmep_aifsn = wmep->wmep_aifsn; 732 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 733 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 734 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 735 } 736 737 /* 738 * This implements agressive mode as found in certain 739 * vendors' AP's. When there is significant high 740 * priority (VI/VO) traffic in the BSS throttle back BE 741 * traffic by using conservative parameters. Otherwise 742 * BE uses agressive params to optimize performance of 743 * legacy/non-QoS traffic. 744 */ 745 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 746 (wme->wme_flags & WME_F_AGGRMODE) != 0) || 747 (ic->ic_opmode == IEEE80211_M_STA && 748 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 749 (ic->ic_flags & IEEE80211_F_WME) == 0) { 750 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 751 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 752 753 chanp->wmep_aifsn = bssp->wmep_aifsn = 754 phyParam[ic->ic_curmode].aifsn; 755 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 756 phyParam[ic->ic_curmode].logcwmin; 757 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 758 phyParam[ic->ic_curmode].logcwmax; 759 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 760 (ic->ic_flags & IEEE80211_F_BURST) ? 761 phyParam[ic->ic_curmode].txopLimit : 0; 762 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 763 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 764 "log2(cwmax) %u txpoLimit %u]\n", __func__ 765 , ieee80211_wme_acnames[WME_AC_BE] 766 , chanp->wmep_acm 767 , chanp->wmep_aifsn 768 , chanp->wmep_logcwmin 769 , chanp->wmep_logcwmax 770 , chanp->wmep_txopLimit 771 ); 772 } 773 774 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 775 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) != 0) { 776 static const uint8_t logCwMin[IEEE80211_MODE_MAX] = { 777 3, /* IEEE80211_MODE_AUTO */ 778 3, /* IEEE80211_MODE_11A */ 779 4, /* IEEE80211_MODE_11B */ 780 3, /* IEEE80211_MODE_11G */ 781 4, /* IEEE80211_MODE_FH */ 782 3, /* IEEE80211_MODE_TURBO_A */ 783 3, /* IEEE80211_MODE_TURBO_G */ 784 }; 785 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 786 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 787 788 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 789 logCwMin[ic->ic_curmode]; 790 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 791 "%s: %s log2(cwmin) %u\n", __func__ 792 , ieee80211_wme_acnames[WME_AC_BE] 793 , chanp->wmep_logcwmin 794 ); 795 } 796 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 797 /* 798 * Arrange for a beacon update and bump the parameter 799 * set number so associated stations load the new values. 800 */ 801 wme->wme_bssChanParams.cap_info = 802 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 803 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 804 } 805 806 wme->wme_update(ic); 807 808 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 809 "%s: WME params updated, cap_info 0x%x\n", __func__, 810 ic->ic_opmode == IEEE80211_M_STA ? 811 wme->wme_wmeChanParams.cap_info : 812 wme->wme_bssChanParams.cap_info); 813 } 814 815 void 816 ieee80211_beacon_miss(struct ieee80211com *ic) 817 { 818 819 if (ic->ic_flags & IEEE80211_F_SCAN) { 820 /* XXX check ic_curchan != ic_bsschan? */ 821 return; 822 } 823 IEEE80211_DPRINTF(ic, 824 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 825 "%s\n", "beacon miss"); 826 827 /* 828 * Our handling is only meaningful for stations that are 829 * associated; any other conditions else will be handled 830 * through different means (e.g. the tx timeout on mgt frames). 831 */ 832 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN) 833 return; 834 835 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) { 836 /* 837 * Send a directed probe req before falling back to a scan; 838 * if we receive a response ic_bmiss_count will be reset. 839 * Some cards mistakenly report beacon miss so this avoids 840 * the expensive scan if the ap is still there. 841 */ 842 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr, 843 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid, 844 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen, 845 ic->ic_opt_ie, ic->ic_opt_ie_len); 846 return; 847 } 848 ic->ic_bmiss_count = 0; 849 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 850 } 851 852 /* 853 * Software beacon miss handling. Check if any beacons 854 * were received in the last period. If not post a 855 * beacon miss; otherwise reset the counter. 856 */ 857 static void 858 ieee80211_swbmiss(void *arg) 859 { 860 struct ieee80211com *ic = arg; 861 struct ifnet *ifp = ic->ic_ifp; 862 863 lwkt_serialize_enter(ifp->if_serializer); 864 865 if (ic->ic_swbmiss_count == 0) { 866 ieee80211_beacon_miss(ic); 867 if (ic->ic_bmiss_count == 0) /* don't re-arm timer */ 868 goto back; 869 } else 870 ic->ic_swbmiss_count = 0; 871 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 872 ieee80211_swbmiss, ic); 873 874 back: 875 lwkt_serialize_exit(ifp->if_serializer); 876 } 877 878 static void 879 sta_disassoc(void *arg, struct ieee80211_node *ni) 880 { 881 struct ieee80211com *ic = arg; 882 883 if (ni->ni_associd != 0) { 884 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 885 IEEE80211_REASON_ASSOC_LEAVE); 886 ieee80211_node_leave(ic, ni); 887 } 888 } 889 890 static void 891 sta_deauth(void *arg, struct ieee80211_node *ni) 892 { 893 struct ieee80211com *ic = arg; 894 895 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 896 IEEE80211_REASON_ASSOC_LEAVE); 897 } 898 899 static int 900 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 901 { 902 struct ifnet *ifp = ic->ic_ifp; 903 struct ieee80211_node *ni; 904 enum ieee80211_state ostate; 905 906 ostate = ic->ic_state; 907 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 908 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 909 ic->ic_state = nstate; /* state transition */ 910 ni = ic->ic_bss; /* NB: no reference held */ 911 if (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS) 912 callout_stop(&ic->ic_swbmiss); 913 switch (nstate) { 914 case IEEE80211_S_INIT: 915 switch (ostate) { 916 case IEEE80211_S_INIT: 917 break; 918 case IEEE80211_S_RUN: 919 switch (ic->ic_opmode) { 920 case IEEE80211_M_STA: 921 IEEE80211_SEND_MGMT(ic, ni, 922 IEEE80211_FC0_SUBTYPE_DISASSOC, 923 IEEE80211_REASON_ASSOC_LEAVE); 924 ieee80211_sta_leave(ic, ni); 925 break; 926 case IEEE80211_M_HOSTAP: 927 ieee80211_iterate_nodes(&ic->ic_sta, 928 sta_disassoc, ic); 929 break; 930 default: 931 break; 932 } 933 goto reset; 934 case IEEE80211_S_ASSOC: 935 switch (ic->ic_opmode) { 936 case IEEE80211_M_STA: 937 IEEE80211_SEND_MGMT(ic, ni, 938 IEEE80211_FC0_SUBTYPE_DEAUTH, 939 IEEE80211_REASON_AUTH_LEAVE); 940 break; 941 case IEEE80211_M_HOSTAP: 942 ieee80211_iterate_nodes(&ic->ic_sta, 943 sta_deauth, ic); 944 break; 945 default: 946 break; 947 } 948 goto reset; 949 case IEEE80211_S_SCAN: 950 ieee80211_cancel_scan(ic); 951 goto reset; 952 case IEEE80211_S_AUTH: 953 reset: 954 ic->ic_mgt_timer = 0; 955 IF_DRAIN(&ic->ic_mgtq); 956 ieee80211_reset_bss(ic); 957 break; 958 } 959 if (ic->ic_auth->ia_detach != NULL) 960 ic->ic_auth->ia_detach(ic); 961 break; 962 case IEEE80211_S_SCAN: 963 switch (ostate) { 964 case IEEE80211_S_INIT: 965 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 966 ic->ic_opmode == IEEE80211_M_IBSS || 967 ic->ic_opmode == IEEE80211_M_AHDEMO) && 968 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 969 /* 970 * AP operation and we already have a channel; 971 * bypass the scan and startup immediately. 972 */ 973 ieee80211_create_ibss(ic, ic->ic_des_chan); 974 } else { 975 ieee80211_begin_scan(ic, arg); 976 } 977 break; 978 case IEEE80211_S_SCAN: 979 /* 980 * Scan next. If doing an active scan probe 981 * for the requested ap (if any). 982 */ 983 if (ic->ic_flags & IEEE80211_F_ASCAN) 984 ieee80211_probe_curchan(ic, 0); 985 break; 986 case IEEE80211_S_RUN: 987 /* beacon miss */ 988 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 989 "no recent beacons from %6D; rescanning\n", 990 ic->ic_bss->ni_bssid, ":"); 991 ieee80211_sta_leave(ic, ni); 992 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 993 /* FALLTHRU */ 994 case IEEE80211_S_AUTH: 995 case IEEE80211_S_ASSOC: 996 /* timeout restart scan */ 997 ni = ieee80211_find_node(&ic->ic_scan, 998 ic->ic_bss->ni_macaddr); 999 if (ni != NULL) { 1000 ni->ni_fails++; 1001 ieee80211_unref_node(&ni); 1002 } 1003 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 1004 ieee80211_begin_scan(ic, arg); 1005 break; 1006 } 1007 break; 1008 case IEEE80211_S_AUTH: 1009 switch (ostate) { 1010 case IEEE80211_S_INIT: 1011 case IEEE80211_S_SCAN: 1012 IEEE80211_SEND_MGMT(ic, ni, 1013 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1014 break; 1015 case IEEE80211_S_AUTH: 1016 case IEEE80211_S_ASSOC: 1017 switch (arg) { 1018 case IEEE80211_FC0_SUBTYPE_AUTH: 1019 /* ??? */ 1020 IEEE80211_SEND_MGMT(ic, ni, 1021 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1022 break; 1023 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1024 /* ignore and retry scan on timeout */ 1025 break; 1026 } 1027 break; 1028 case IEEE80211_S_RUN: 1029 switch (arg) { 1030 case IEEE80211_FC0_SUBTYPE_AUTH: 1031 IEEE80211_SEND_MGMT(ic, ni, 1032 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1033 ic->ic_state = ostate; /* stay RUN */ 1034 break; 1035 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1036 ieee80211_sta_leave(ic, ni); 1037 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1038 /* try to reauth */ 1039 IEEE80211_SEND_MGMT(ic, ni, 1040 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1041 } 1042 break; 1043 } 1044 break; 1045 } 1046 break; 1047 case IEEE80211_S_ASSOC: 1048 switch (ostate) { 1049 case IEEE80211_S_INIT: 1050 case IEEE80211_S_SCAN: 1051 case IEEE80211_S_ASSOC: 1052 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1053 "%s: invalid transition\n", __func__); 1054 break; 1055 case IEEE80211_S_AUTH: 1056 IEEE80211_SEND_MGMT(ic, ni, 1057 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1058 break; 1059 case IEEE80211_S_RUN: 1060 ieee80211_sta_leave(ic, ni); 1061 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1062 IEEE80211_SEND_MGMT(ic, ni, 1063 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1064 } 1065 break; 1066 } 1067 break; 1068 case IEEE80211_S_RUN: 1069 if (ic->ic_flags & IEEE80211_F_WPA) { 1070 /* XXX validate prerequisites */ 1071 } 1072 switch (ostate) { 1073 case IEEE80211_S_INIT: 1074 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1075 break; 1076 /* fall thru... */ 1077 case IEEE80211_S_AUTH: 1078 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1079 "%s: invalid transition\n", __func__); 1080 /* fall thru... */ 1081 case IEEE80211_S_RUN: 1082 break; 1083 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1084 case IEEE80211_S_ASSOC: /* infra mode */ 1085 KASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1086 ("%s: bogus xmit rate %u setup\n", __func__, 1087 ni->ni_txrate)); 1088 #ifdef IEEE80211_DEBUG 1089 if (ieee80211_msg_debug(ic)) { 1090 if (ic->ic_opmode == IEEE80211_M_STA) 1091 if_printf(ifp, "associated "); 1092 else 1093 if_printf(ifp, "synchronized "); 1094 printf("with %6D ssid ", ni->ni_bssid, ":"); 1095 ieee80211_print_essid(ic->ic_bss->ni_essid, 1096 ni->ni_esslen); 1097 printf(" channel %d start %uMb\n", 1098 ieee80211_chan2ieee(ic, ic->ic_curchan), 1099 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1100 } 1101 #endif 1102 ic->ic_mgt_timer = 0; 1103 if (ic->ic_opmode == IEEE80211_M_STA) 1104 ieee80211_notify_node_join(ic, ni, 1105 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1106 ifp->if_start(ifp); /* XXX not authorized yet */ 1107 break; 1108 } 1109 if (ostate != IEEE80211_S_RUN && 1110 ic->ic_opmode == IEEE80211_M_STA && 1111 (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS)) { 1112 /* 1113 * Start s/w beacon miss timer for devices w/o 1114 * hardware support. We fudge a bit here since 1115 * we're doing this in software. 1116 */ 1117 ic->ic_swbmiss_period = IEEE80211_TU_TO_TICKS( 1118 2 * ic->ic_bmissthreshold * ni->ni_intval); 1119 ic->ic_swbmiss_count = 0; 1120 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 1121 ieee80211_swbmiss, ic); 1122 } 1123 /* 1124 * Start/stop the authenticator when operating as an 1125 * AP. We delay until here to allow configuration to 1126 * happen out of order. 1127 */ 1128 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1129 ic->ic_auth->ia_attach != NULL) { 1130 /* XXX check failure */ 1131 ic->ic_auth->ia_attach(ic); 1132 } else if (ic->ic_auth->ia_detach != NULL) { 1133 ic->ic_auth->ia_detach(ic); 1134 } 1135 /* 1136 * When 802.1x is not in use mark the port authorized 1137 * at this point so traffic can flow. 1138 */ 1139 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1140 ieee80211_node_authorize(ni); 1141 /* 1142 * Enable inactivity processing. 1143 * XXX 1144 */ 1145 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1146 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1147 break; 1148 } 1149 return 0; 1150 } 1151