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 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 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 46 #include <sys/socket.h> 47 48 #include <net/if.h> 49 #include <net/if_media.h> 50 #include <net/ethernet.h> /* XXX for ether_sprintf */ 51 52 #include <net80211/ieee80211_var.h> 53 54 /* XXX tunables */ 55 #define AGGRESSIVE_MODE_SWITCH_HYSTERESIS 3 /* pkts / 100ms */ 56 #define HIGH_PRI_SWITCH_THRESH 10 /* pkts / 100ms */ 57 58 #define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2) 59 60 const char *ieee80211_mgt_subtype_name[] = { 61 "assoc_req", "assoc_resp", "reassoc_req", "reassoc_resp", 62 "probe_req", "probe_resp", "reserved#6", "reserved#7", 63 "beacon", "atim", "disassoc", "auth", 64 "deauth", "reserved#13", "reserved#14", "reserved#15" 65 }; 66 const char *ieee80211_ctl_subtype_name[] = { 67 "reserved#0", "reserved#1", "reserved#2", "reserved#3", 68 "reserved#3", "reserved#5", "reserved#6", "reserved#7", 69 "reserved#8", "reserved#9", "ps_poll", "rts", 70 "cts", "ack", "cf_end", "cf_end_ack" 71 }; 72 const char *ieee80211_state_name[IEEE80211_S_MAX] = { 73 "INIT", /* IEEE80211_S_INIT */ 74 "SCAN", /* IEEE80211_S_SCAN */ 75 "AUTH", /* IEEE80211_S_AUTH */ 76 "ASSOC", /* IEEE80211_S_ASSOC */ 77 "RUN" /* IEEE80211_S_RUN */ 78 }; 79 const char *ieee80211_wme_acnames[] = { 80 "WME_AC_BE", 81 "WME_AC_BK", 82 "WME_AC_VI", 83 "WME_AC_VO", 84 "WME_UPSD", 85 }; 86 87 static int ieee80211_newstate(struct ieee80211com *, enum ieee80211_state, int); 88 89 void 90 ieee80211_proto_attach(struct ieee80211com *ic) 91 { 92 struct ifnet *ifp = ic->ic_ifp; 93 94 /* XXX room for crypto */ 95 ifp->if_hdrlen = sizeof(struct ieee80211_qosframe_addr4); 96 97 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 98 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT; 99 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 100 ic->ic_bmiss_max = IEEE80211_BMISS_MAX; 101 callout_init(&ic->ic_swbmiss, CALLOUT_MPSAFE); 102 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT; 103 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 104 ic->ic_roaming = IEEE80211_ROAMING_AUTO; 105 106 ic->ic_wme.wme_hipri_switch_hysteresis = 107 AGGRESSIVE_MODE_SWITCH_HYSTERESIS; 108 109 mtx_init(&ic->ic_mgtq.ifq_mtx, ifp->if_xname, "mgmt send q", MTX_DEF); 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 ic->ic_raw_xmit = ieee80211_raw_xmit; 118 } 119 120 void 121 ieee80211_proto_detach(struct ieee80211com *ic) 122 { 123 124 /* 125 * This should not be needed as we detach when reseting 126 * the state but be conservative here since the 127 * authenticator may do things like spawn kernel threads. 128 */ 129 if (ic->ic_auth->ia_detach) 130 ic->ic_auth->ia_detach(ic); 131 132 IF_DRAIN(&ic->ic_mgtq); 133 mtx_destroy(&ic->ic_mgtq.ifq_mtx); 134 135 /* 136 * Detach any ACL'ator. 137 */ 138 if (ic->ic_acl != NULL) 139 ic->ic_acl->iac_detach(ic); 140 } 141 142 /* 143 * Simple-minded authenticator module support. 144 */ 145 146 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1) 147 /* XXX well-known names */ 148 static const char *auth_modnames[IEEE80211_AUTH_MAX] = { 149 "wlan_internal", /* IEEE80211_AUTH_NONE */ 150 "wlan_internal", /* IEEE80211_AUTH_OPEN */ 151 "wlan_internal", /* IEEE80211_AUTH_SHARED */ 152 "wlan_xauth", /* IEEE80211_AUTH_8021X */ 153 "wlan_internal", /* IEEE80211_AUTH_AUTO */ 154 "wlan_xauth", /* IEEE80211_AUTH_WPA */ 155 }; 156 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX]; 157 158 static const struct ieee80211_authenticator auth_internal = { 159 .ia_name = "wlan_internal", 160 .ia_attach = NULL, 161 .ia_detach = NULL, 162 .ia_node_join = NULL, 163 .ia_node_leave = NULL, 164 }; 165 166 /* 167 * Setup internal authenticators once; they are never unregistered. 168 */ 169 static void 170 ieee80211_auth_setup(void) 171 { 172 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal); 173 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal); 174 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal); 175 } 176 SYSINIT(wlan_auth, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_auth_setup, NULL); 177 178 const struct ieee80211_authenticator * 179 ieee80211_authenticator_get(int auth) 180 { 181 if (auth >= IEEE80211_AUTH_MAX) 182 return NULL; 183 if (authenticators[auth] == NULL) 184 ieee80211_load_module(auth_modnames[auth]); 185 return authenticators[auth]; 186 } 187 188 void 189 ieee80211_authenticator_register(int type, 190 const struct ieee80211_authenticator *auth) 191 { 192 if (type >= IEEE80211_AUTH_MAX) 193 return; 194 authenticators[type] = auth; 195 } 196 197 void 198 ieee80211_authenticator_unregister(int type) 199 { 200 201 if (type >= IEEE80211_AUTH_MAX) 202 return; 203 authenticators[type] = NULL; 204 } 205 206 /* 207 * Very simple-minded ACL module support. 208 */ 209 /* XXX just one for now */ 210 static const struct ieee80211_aclator *acl = NULL; 211 212 void 213 ieee80211_aclator_register(const struct ieee80211_aclator *iac) 214 { 215 printf("wlan: %s acl policy registered\n", iac->iac_name); 216 acl = iac; 217 } 218 219 void 220 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac) 221 { 222 if (acl == iac) 223 acl = NULL; 224 printf("wlan: %s acl policy unregistered\n", iac->iac_name); 225 } 226 227 const struct ieee80211_aclator * 228 ieee80211_aclator_get(const char *name) 229 { 230 if (acl == NULL) 231 ieee80211_load_module("wlan_acl"); 232 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL; 233 } 234 235 void 236 ieee80211_print_essid(const u_int8_t *essid, int len) 237 { 238 const u_int8_t *p; 239 int i; 240 241 if (len > IEEE80211_NWID_LEN) 242 len = IEEE80211_NWID_LEN; 243 /* determine printable or not */ 244 for (i = 0, p = essid; i < len; i++, p++) { 245 if (*p < ' ' || *p > 0x7e) 246 break; 247 } 248 if (i == len) { 249 printf("\""); 250 for (i = 0, p = essid; i < len; i++, p++) 251 printf("%c", *p); 252 printf("\""); 253 } else { 254 printf("0x"); 255 for (i = 0, p = essid; i < len; i++, p++) 256 printf("%02x", *p); 257 } 258 } 259 260 void 261 ieee80211_dump_pkt(const u_int8_t *buf, int len, int rate, int rssi) 262 { 263 const struct ieee80211_frame *wh; 264 int i; 265 266 wh = (const struct ieee80211_frame *)buf; 267 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 268 case IEEE80211_FC1_DIR_NODS: 269 printf("NODS %s", ether_sprintf(wh->i_addr2)); 270 printf("->%s", ether_sprintf(wh->i_addr1)); 271 printf("(%s)", ether_sprintf(wh->i_addr3)); 272 break; 273 case IEEE80211_FC1_DIR_TODS: 274 printf("TODS %s", ether_sprintf(wh->i_addr2)); 275 printf("->%s", ether_sprintf(wh->i_addr3)); 276 printf("(%s)", ether_sprintf(wh->i_addr1)); 277 break; 278 case IEEE80211_FC1_DIR_FROMDS: 279 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 280 printf("->%s", ether_sprintf(wh->i_addr1)); 281 printf("(%s)", ether_sprintf(wh->i_addr2)); 282 break; 283 case IEEE80211_FC1_DIR_DSTODS: 284 printf("DSDS %s", ether_sprintf((const u_int8_t *)&wh[1])); 285 printf("->%s", ether_sprintf(wh->i_addr3)); 286 printf("(%s", ether_sprintf(wh->i_addr2)); 287 printf("->%s)", ether_sprintf(wh->i_addr1)); 288 break; 289 } 290 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 291 case IEEE80211_FC0_TYPE_DATA: 292 printf(" data"); 293 break; 294 case IEEE80211_FC0_TYPE_MGT: 295 printf(" %s", ieee80211_mgt_subtype_name[ 296 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 297 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 298 break; 299 default: 300 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 301 break; 302 } 303 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 304 int i; 305 printf(" WEP [IV"); 306 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) 307 printf(" %.02x", buf[sizeof(*wh)+i]); 308 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6); 309 } 310 if (rate >= 0) 311 printf(" %dM", rate / 2); 312 if (rssi >= 0) 313 printf(" +%d", rssi); 314 printf("\n"); 315 if (len > 0) { 316 for (i = 0; i < len; i++) { 317 if ((i & 1) == 0) 318 printf(" "); 319 printf("%02x", buf[i]); 320 } 321 printf("\n"); 322 } 323 } 324 325 int 326 ieee80211_fix_rate(struct ieee80211_node *ni, int flags) 327 { 328 #define RV(v) ((v) & IEEE80211_RATE_VAL) 329 struct ieee80211com *ic = ni->ni_ic; 330 int i, j, ignore, error; 331 int okrate, badrate, fixedrate; 332 const struct ieee80211_rateset *srs; 333 struct ieee80211_rateset *nrs; 334 u_int8_t r; 335 336 /* 337 * If the fixed rate check was requested but no 338 * fixed has been defined then just remove it. 339 */ 340 if ((flags & IEEE80211_F_DOFRATE) && 341 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 342 flags &= ~IEEE80211_F_DOFRATE; 343 error = 0; 344 okrate = badrate = fixedrate = 0; 345 srs = ieee80211_get_suprates(ic, ni->ni_chan); 346 nrs = &ni->ni_rates; 347 for (i = 0; i < nrs->rs_nrates; ) { 348 ignore = 0; 349 if (flags & IEEE80211_F_DOSORT) { 350 /* 351 * Sort rates. 352 */ 353 for (j = i + 1; j < nrs->rs_nrates; j++) { 354 if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) { 355 r = nrs->rs_rates[i]; 356 nrs->rs_rates[i] = nrs->rs_rates[j]; 357 nrs->rs_rates[j] = r; 358 } 359 } 360 } 361 r = nrs->rs_rates[i] & IEEE80211_RATE_VAL; 362 badrate = r; 363 if (flags & IEEE80211_F_DOFRATE) { 364 /* 365 * Check any fixed rate is included. 366 */ 367 if (r == RV(srs->rs_rates[ic->ic_fixed_rate])) 368 fixedrate = r; 369 } 370 if (flags & IEEE80211_F_DONEGO) { 371 /* 372 * Check against supported rates. 373 */ 374 for (j = 0; j < srs->rs_nrates; j++) { 375 if (r == RV(srs->rs_rates[j])) { 376 /* 377 * Overwrite with the supported rate 378 * value so any basic rate bit is set. 379 * This insures that response we send 380 * to stations have the necessary basic 381 * rate bit set. 382 */ 383 nrs->rs_rates[i] = srs->rs_rates[j]; 384 break; 385 } 386 } 387 if (j == srs->rs_nrates) { 388 /* 389 * A rate in the node's rate set is not 390 * supported. If this is a basic rate and we 391 * are operating as an AP then this is an error. 392 * Otherwise we just discard/ignore the rate. 393 * Note that this is important for 11b stations 394 * when they want to associate with an 11g AP. 395 */ 396 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 397 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC)) 398 error++; 399 ignore++; 400 } 401 } 402 if (flags & IEEE80211_F_DODEL) { 403 /* 404 * Delete unacceptable rates. 405 */ 406 if (ignore) { 407 nrs->rs_nrates--; 408 for (j = i; j < nrs->rs_nrates; j++) 409 nrs->rs_rates[j] = nrs->rs_rates[j + 1]; 410 nrs->rs_rates[j] = 0; 411 continue; 412 } 413 } 414 if (!ignore) 415 okrate = nrs->rs_rates[i]; 416 i++; 417 } 418 if (okrate == 0 || error != 0 || 419 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 420 return badrate | IEEE80211_RATE_BASIC; 421 else 422 return RV(okrate); 423 #undef RV 424 } 425 426 /* 427 * Reset 11g-related state. 428 */ 429 void 430 ieee80211_reset_erp(struct ieee80211com *ic) 431 { 432 ic->ic_flags &= ~IEEE80211_F_USEPROT; 433 ic->ic_nonerpsta = 0; 434 ic->ic_longslotsta = 0; 435 /* 436 * Short slot time is enabled only when operating in 11g 437 * and not in an IBSS. We must also honor whether or not 438 * the driver is capable of doing it. 439 */ 440 ieee80211_set_shortslottime(ic, 441 ic->ic_curmode == IEEE80211_MODE_11A || 442 (ic->ic_curmode == IEEE80211_MODE_11G && 443 ic->ic_opmode == IEEE80211_M_HOSTAP && 444 (ic->ic_caps & IEEE80211_C_SHSLOT))); 445 /* 446 * Set short preamble and ERP barker-preamble flags. 447 */ 448 if (ic->ic_curmode == IEEE80211_MODE_11A || 449 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 450 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 451 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 452 } else { 453 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 454 ic->ic_flags |= IEEE80211_F_USEBARKER; 455 } 456 } 457 458 /* 459 * Set the short slot time state and notify the driver. 460 */ 461 void 462 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff) 463 { 464 if (onoff) 465 ic->ic_flags |= IEEE80211_F_SHSLOT; 466 else 467 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 468 /* notify driver */ 469 if (ic->ic_updateslot != NULL) 470 ic->ic_updateslot(ic->ic_ifp); 471 } 472 473 /* 474 * Check if the specified rate set supports ERP. 475 * NB: the rate set is assumed to be sorted. 476 */ 477 int 478 ieee80211_iserp_rateset(struct ieee80211com *ic, struct ieee80211_rateset *rs) 479 { 480 #define N(a) (sizeof(a) / sizeof(a[0])) 481 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 482 int i, j; 483 484 if (rs->rs_nrates < N(rates)) 485 return 0; 486 for (i = 0; i < N(rates); i++) { 487 for (j = 0; j < rs->rs_nrates; j++) { 488 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 489 if (rates[i] == r) 490 goto next; 491 if (r > rates[i]) 492 return 0; 493 } 494 return 0; 495 next: 496 ; 497 } 498 return 1; 499 #undef N 500 } 501 502 /* 503 * Mark the basic rates for the 11g rate table based on the 504 * operating mode. For real 11g we mark all the 11b rates 505 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 506 * 11b rates. There's also a pseudo 11a-mode used to mark only 507 * the basic OFDM rates. 508 */ 509 void 510 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 511 { 512 static const struct ieee80211_rateset basic[] = { 513 { 0 }, /* IEEE80211_MODE_AUTO */ 514 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 515 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 516 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 517 { 0 }, /* IEEE80211_MODE_FH */ 518 /* IEEE80211_MODE_PUREG (not yet) */ 519 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 520 }; 521 int i, j; 522 523 for (i = 0; i < rs->rs_nrates; i++) { 524 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 525 for (j = 0; j < basic[mode].rs_nrates; j++) 526 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 527 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 528 break; 529 } 530 } 531 } 532 533 /* 534 * WME protocol support. The following parameters come from the spec. 535 */ 536 typedef struct phyParamType { 537 u_int8_t aifsn; 538 u_int8_t logcwmin; 539 u_int8_t logcwmax; 540 u_int16_t txopLimit; 541 u_int8_t acm; 542 } paramType; 543 544 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 545 { 3, 4, 6 }, /* IEEE80211_MODE_AUTO */ 546 { 3, 4, 6 }, /* IEEE80211_MODE_11A */ 547 { 3, 5, 7 }, /* IEEE80211_MODE_11B */ 548 { 3, 4, 6 }, /* IEEE80211_MODE_11G */ 549 { 3, 5, 7 }, /* IEEE80211_MODE_FH */ 550 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_A */ 551 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_G */ 552 }; 553 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 554 { 7, 4, 10 }, /* IEEE80211_MODE_AUTO */ 555 { 7, 4, 10 }, /* IEEE80211_MODE_11A */ 556 { 7, 5, 10 }, /* IEEE80211_MODE_11B */ 557 { 7, 4, 10 }, /* IEEE80211_MODE_11G */ 558 { 7, 5, 10 }, /* IEEE80211_MODE_FH */ 559 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 560 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 561 }; 562 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 563 { 1, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 564 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 565 { 1, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 566 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 567 { 1, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 568 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 569 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 570 }; 571 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 572 { 1, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 573 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 574 { 1, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 575 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 576 { 1, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 577 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 578 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 579 }; 580 581 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 582 { 3, 4, 10 }, /* IEEE80211_MODE_AUTO */ 583 { 3, 4, 10 }, /* IEEE80211_MODE_11A */ 584 { 3, 5, 10 }, /* IEEE80211_MODE_11B */ 585 { 3, 4, 10 }, /* IEEE80211_MODE_11G */ 586 { 3, 5, 10 }, /* IEEE80211_MODE_FH */ 587 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 588 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 589 }; 590 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 591 { 2, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 592 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 593 { 2, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 594 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 595 { 2, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 596 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 597 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 598 }; 599 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 600 { 2, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 601 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 602 { 2, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 603 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 604 { 2, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 605 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 606 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 607 }; 608 609 void 610 ieee80211_wme_initparams(struct ieee80211com *ic) 611 { 612 struct ieee80211_wme_state *wme = &ic->ic_wme; 613 const paramType *pPhyParam, *pBssPhyParam; 614 struct wmeParams *wmep; 615 int i; 616 617 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 618 return; 619 620 for (i = 0; i < WME_NUM_AC; i++) { 621 switch (i) { 622 case WME_AC_BK: 623 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 624 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 625 break; 626 case WME_AC_VI: 627 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 628 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 629 break; 630 case WME_AC_VO: 631 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 632 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 633 break; 634 case WME_AC_BE: 635 default: 636 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 637 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 638 break; 639 } 640 641 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 642 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 643 wmep->wmep_acm = pPhyParam->acm; 644 wmep->wmep_aifsn = pPhyParam->aifsn; 645 wmep->wmep_logcwmin = pPhyParam->logcwmin; 646 wmep->wmep_logcwmax = pPhyParam->logcwmax; 647 wmep->wmep_txopLimit = pPhyParam->txopLimit; 648 } else { 649 wmep->wmep_acm = pBssPhyParam->acm; 650 wmep->wmep_aifsn = pBssPhyParam->aifsn; 651 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 652 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 653 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 654 655 } 656 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 657 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 658 "log2(cwmax) %u txpoLimit %u]\n", __func__ 659 , ieee80211_wme_acnames[i] 660 , wmep->wmep_acm 661 , wmep->wmep_aifsn 662 , wmep->wmep_logcwmin 663 , wmep->wmep_logcwmax 664 , wmep->wmep_txopLimit 665 ); 666 667 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 668 wmep->wmep_acm = pBssPhyParam->acm; 669 wmep->wmep_aifsn = pBssPhyParam->aifsn; 670 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 671 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 672 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 673 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 674 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 675 "log2(cwmax) %u txpoLimit %u]\n", __func__ 676 , ieee80211_wme_acnames[i] 677 , wmep->wmep_acm 678 , wmep->wmep_aifsn 679 , wmep->wmep_logcwmin 680 , wmep->wmep_logcwmax 681 , wmep->wmep_txopLimit 682 ); 683 } 684 /* NB: check ic_bss to avoid NULL deref on initial attach */ 685 if (ic->ic_bss != NULL) { 686 /* 687 * Calculate agressive mode switching threshold based 688 * on beacon interval. This doesn't need locking since 689 * we're only called before entering the RUN state at 690 * which point we start sending beacon frames. 691 */ 692 wme->wme_hipri_switch_thresh = 693 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 694 ieee80211_wme_updateparams(ic); 695 } 696 } 697 698 /* 699 * Update WME parameters for ourself and the BSS. 700 */ 701 void 702 ieee80211_wme_updateparams_locked(struct ieee80211com *ic) 703 { 704 static const paramType phyParam[IEEE80211_MODE_MAX] = { 705 { 2, 4, 10, 64 }, /* IEEE80211_MODE_AUTO */ 706 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11A */ 707 { 2, 5, 10, 64 }, /* IEEE80211_MODE_11B */ 708 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11G */ 709 { 2, 5, 10, 64 }, /* IEEE80211_MODE_FH */ 710 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_A */ 711 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_G */ 712 }; 713 struct ieee80211_wme_state *wme = &ic->ic_wme; 714 const struct wmeParams *wmep; 715 struct wmeParams *chanp, *bssp; 716 int i; 717 718 /* set up the channel access parameters for the physical device */ 719 for (i = 0; i < WME_NUM_AC; i++) { 720 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 721 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 722 chanp->wmep_aifsn = wmep->wmep_aifsn; 723 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 724 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 725 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 726 727 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 728 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 729 chanp->wmep_aifsn = wmep->wmep_aifsn; 730 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 731 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 732 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 733 } 734 735 /* 736 * This implements agressive mode as found in certain 737 * vendors' AP's. When there is significant high 738 * priority (VI/VO) traffic in the BSS throttle back BE 739 * traffic by using conservative parameters. Otherwise 740 * BE uses agressive params to optimize performance of 741 * legacy/non-QoS traffic. 742 */ 743 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 744 (wme->wme_flags & WME_F_AGGRMODE) != 0) || 745 (ic->ic_opmode == IEEE80211_M_STA && 746 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 747 (ic->ic_flags & IEEE80211_F_WME) == 0) { 748 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 749 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 750 751 chanp->wmep_aifsn = bssp->wmep_aifsn = 752 phyParam[ic->ic_curmode].aifsn; 753 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 754 phyParam[ic->ic_curmode].logcwmin; 755 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 756 phyParam[ic->ic_curmode].logcwmax; 757 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 758 (ic->ic_flags & IEEE80211_F_BURST) ? 759 phyParam[ic->ic_curmode].txopLimit : 0; 760 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 761 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 762 "log2(cwmax) %u txpoLimit %u]\n", __func__ 763 , ieee80211_wme_acnames[WME_AC_BE] 764 , chanp->wmep_acm 765 , chanp->wmep_aifsn 766 , chanp->wmep_logcwmin 767 , chanp->wmep_logcwmax 768 , chanp->wmep_txopLimit 769 ); 770 } 771 772 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 773 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) != 0) { 774 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = { 775 3, /* IEEE80211_MODE_AUTO */ 776 3, /* IEEE80211_MODE_11A */ 777 4, /* IEEE80211_MODE_11B */ 778 3, /* IEEE80211_MODE_11G */ 779 4, /* IEEE80211_MODE_FH */ 780 3, /* IEEE80211_MODE_TURBO_A */ 781 3, /* IEEE80211_MODE_TURBO_G */ 782 }; 783 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 784 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 785 786 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 787 logCwMin[ic->ic_curmode]; 788 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 789 "%s: %s log2(cwmin) %u\n", __func__ 790 , ieee80211_wme_acnames[WME_AC_BE] 791 , chanp->wmep_logcwmin 792 ); 793 } 794 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 795 /* 796 * Arrange for a beacon update and bump the parameter 797 * set number so associated stations load the new values. 798 */ 799 wme->wme_bssChanParams.cap_info = 800 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 801 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 802 } 803 804 wme->wme_update(ic); 805 806 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 807 "%s: WME params updated, cap_info 0x%x\n", __func__, 808 ic->ic_opmode == IEEE80211_M_STA ? 809 wme->wme_wmeChanParams.cap_info : 810 wme->wme_bssChanParams.cap_info); 811 } 812 813 void 814 ieee80211_wme_updateparams(struct ieee80211com *ic) 815 { 816 817 if (ic->ic_caps & IEEE80211_C_WME) { 818 IEEE80211_BEACON_LOCK(ic); 819 ieee80211_wme_updateparams_locked(ic); 820 IEEE80211_BEACON_UNLOCK(ic); 821 } 822 } 823 824 void 825 ieee80211_beacon_miss(struct ieee80211com *ic) 826 { 827 828 if (ic->ic_flags & IEEE80211_F_SCAN) { 829 /* XXX check ic_curchan != ic_bsschan? */ 830 return; 831 } 832 IEEE80211_DPRINTF(ic, 833 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 834 "%s\n", "beacon miss"); 835 836 /* 837 * Our handling is only meaningful for stations that are 838 * associated; any other conditions else will be handled 839 * through different means (e.g. the tx timeout on mgt frames). 840 */ 841 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN) 842 return; 843 844 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) { 845 /* 846 * Send a directed probe req before falling back to a scan; 847 * if we receive a response ic_bmiss_count will be reset. 848 * Some cards mistakenly report beacon miss so this avoids 849 * the expensive scan if the ap is still there. 850 */ 851 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr, 852 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid, 853 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen, 854 ic->ic_opt_ie, ic->ic_opt_ie_len); 855 return; 856 } 857 ic->ic_bmiss_count = 0; 858 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 859 } 860 861 /* 862 * Software beacon miss handling. Check if any beacons 863 * were received in the last period. If not post a 864 * beacon miss; otherwise reset the counter. 865 */ 866 static void 867 ieee80211_swbmiss(void *arg) 868 { 869 struct ieee80211com *ic = arg; 870 871 if (ic->ic_swbmiss_count == 0) { 872 ieee80211_beacon_miss(ic); 873 if (ic->ic_bmiss_count == 0) /* don't re-arm timer */ 874 return; 875 } else 876 ic->ic_swbmiss_count = 0; 877 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 878 ieee80211_swbmiss, ic); 879 } 880 881 static void 882 sta_disassoc(void *arg, struct ieee80211_node *ni) 883 { 884 struct ieee80211com *ic = arg; 885 886 if (ni->ni_associd != 0) { 887 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 888 IEEE80211_REASON_ASSOC_LEAVE); 889 ieee80211_node_leave(ic, ni); 890 } 891 } 892 893 static void 894 sta_deauth(void *arg, struct ieee80211_node *ni) 895 { 896 struct ieee80211com *ic = arg; 897 898 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 899 IEEE80211_REASON_ASSOC_LEAVE); 900 } 901 902 static int 903 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 904 { 905 struct ifnet *ifp = ic->ic_ifp; 906 struct ieee80211_node *ni; 907 enum ieee80211_state ostate; 908 909 ostate = ic->ic_state; 910 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 911 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 912 ic->ic_state = nstate; /* state transition */ 913 ni = ic->ic_bss; /* NB: no reference held */ 914 if (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS) 915 callout_stop(&ic->ic_swbmiss); 916 switch (nstate) { 917 case IEEE80211_S_INIT: 918 switch (ostate) { 919 case IEEE80211_S_INIT: 920 break; 921 case IEEE80211_S_RUN: 922 switch (ic->ic_opmode) { 923 case IEEE80211_M_STA: 924 IEEE80211_SEND_MGMT(ic, ni, 925 IEEE80211_FC0_SUBTYPE_DISASSOC, 926 IEEE80211_REASON_ASSOC_LEAVE); 927 ieee80211_sta_leave(ic, ni); 928 break; 929 case IEEE80211_M_HOSTAP: 930 ieee80211_iterate_nodes(&ic->ic_sta, 931 sta_disassoc, ic); 932 break; 933 default: 934 break; 935 } 936 goto reset; 937 case IEEE80211_S_ASSOC: 938 switch (ic->ic_opmode) { 939 case IEEE80211_M_STA: 940 IEEE80211_SEND_MGMT(ic, ni, 941 IEEE80211_FC0_SUBTYPE_DEAUTH, 942 IEEE80211_REASON_AUTH_LEAVE); 943 break; 944 case IEEE80211_M_HOSTAP: 945 ieee80211_iterate_nodes(&ic->ic_sta, 946 sta_deauth, ic); 947 break; 948 default: 949 break; 950 } 951 goto reset; 952 case IEEE80211_S_SCAN: 953 ieee80211_cancel_scan(ic); 954 goto reset; 955 case IEEE80211_S_AUTH: 956 reset: 957 ic->ic_mgt_timer = 0; 958 IF_DRAIN(&ic->ic_mgtq); 959 ieee80211_reset_bss(ic); 960 break; 961 } 962 if (ic->ic_auth->ia_detach != NULL) 963 ic->ic_auth->ia_detach(ic); 964 break; 965 case IEEE80211_S_SCAN: 966 switch (ostate) { 967 case IEEE80211_S_INIT: 968 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 969 ic->ic_opmode == IEEE80211_M_IBSS || 970 ic->ic_opmode == IEEE80211_M_AHDEMO) && 971 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 972 /* 973 * AP operation and we already have a channel; 974 * bypass the scan and startup immediately. 975 */ 976 ieee80211_create_ibss(ic, ic->ic_des_chan); 977 } else { 978 ieee80211_begin_scan(ic, arg); 979 } 980 break; 981 case IEEE80211_S_SCAN: 982 /* 983 * Scan next. If doing an active scan probe 984 * for the requested ap (if any). 985 */ 986 if (ic->ic_flags & IEEE80211_F_ASCAN) 987 ieee80211_probe_curchan(ic, 0); 988 break; 989 case IEEE80211_S_RUN: 990 /* beacon miss */ 991 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 992 "no recent beacons from %s; rescanning\n", 993 ether_sprintf(ic->ic_bss->ni_bssid)); 994 ieee80211_sta_leave(ic, ni); 995 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 996 /* FALLTHRU */ 997 case IEEE80211_S_AUTH: 998 case IEEE80211_S_ASSOC: 999 /* timeout restart scan */ 1000 ni = ieee80211_find_node(&ic->ic_scan, 1001 ic->ic_bss->ni_macaddr); 1002 if (ni != NULL) { 1003 ni->ni_fails++; 1004 ieee80211_unref_node(&ni); 1005 } 1006 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 1007 ieee80211_begin_scan(ic, arg); 1008 break; 1009 } 1010 break; 1011 case IEEE80211_S_AUTH: 1012 switch (ostate) { 1013 case IEEE80211_S_INIT: 1014 case IEEE80211_S_SCAN: 1015 IEEE80211_SEND_MGMT(ic, ni, 1016 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1017 break; 1018 case IEEE80211_S_AUTH: 1019 case IEEE80211_S_ASSOC: 1020 switch (arg) { 1021 case IEEE80211_FC0_SUBTYPE_AUTH: 1022 /* ??? */ 1023 IEEE80211_SEND_MGMT(ic, ni, 1024 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1025 break; 1026 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1027 /* ignore and retry scan on timeout */ 1028 break; 1029 } 1030 break; 1031 case IEEE80211_S_RUN: 1032 switch (arg) { 1033 case IEEE80211_FC0_SUBTYPE_AUTH: 1034 IEEE80211_SEND_MGMT(ic, ni, 1035 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1036 ic->ic_state = ostate; /* stay RUN */ 1037 break; 1038 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1039 ieee80211_sta_leave(ic, ni); 1040 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1041 /* try to reauth */ 1042 IEEE80211_SEND_MGMT(ic, ni, 1043 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1044 } 1045 break; 1046 } 1047 break; 1048 } 1049 break; 1050 case IEEE80211_S_ASSOC: 1051 switch (ostate) { 1052 case IEEE80211_S_INIT: 1053 case IEEE80211_S_SCAN: 1054 case IEEE80211_S_ASSOC: 1055 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1056 "%s: invalid transition\n", __func__); 1057 break; 1058 case IEEE80211_S_AUTH: 1059 IEEE80211_SEND_MGMT(ic, ni, 1060 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1061 break; 1062 case IEEE80211_S_RUN: 1063 ieee80211_sta_leave(ic, ni); 1064 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1065 IEEE80211_SEND_MGMT(ic, ni, 1066 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1067 } 1068 break; 1069 } 1070 break; 1071 case IEEE80211_S_RUN: 1072 if (ic->ic_flags & IEEE80211_F_WPA) { 1073 /* XXX validate prerequisites */ 1074 } 1075 switch (ostate) { 1076 case IEEE80211_S_INIT: 1077 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1078 break; 1079 /* fall thru... */ 1080 case IEEE80211_S_AUTH: 1081 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1082 "%s: invalid transition\n", __func__); 1083 /* fall thru... */ 1084 case IEEE80211_S_RUN: 1085 break; 1086 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1087 case IEEE80211_S_ASSOC: /* infra mode */ 1088 KASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1089 ("%s: bogus xmit rate %u setup\n", __func__, 1090 ni->ni_txrate)); 1091 #ifdef IEEE80211_DEBUG 1092 if (ieee80211_msg_debug(ic)) { 1093 if (ic->ic_opmode == IEEE80211_M_STA) 1094 if_printf(ifp, "associated "); 1095 else 1096 if_printf(ifp, "synchronized "); 1097 printf("with %s ssid ", 1098 ether_sprintf(ni->ni_bssid)); 1099 ieee80211_print_essid(ic->ic_bss->ni_essid, 1100 ni->ni_esslen); 1101 printf(" channel %d start %uMb\n", 1102 ieee80211_chan2ieee(ic, ic->ic_curchan), 1103 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1104 } 1105 #endif 1106 ic->ic_mgt_timer = 0; 1107 if (ic->ic_opmode == IEEE80211_M_STA) 1108 ieee80211_notify_node_join(ic, ni, 1109 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1110 if_start(ifp); /* XXX not authorized yet */ 1111 break; 1112 } 1113 if (ostate != IEEE80211_S_RUN && 1114 ic->ic_opmode == IEEE80211_M_STA && 1115 (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS)) { 1116 /* 1117 * Start s/w beacon miss timer for devices w/o 1118 * hardware support. We fudge a bit here since 1119 * we're doing this in software. 1120 */ 1121 ic->ic_swbmiss_period = IEEE80211_TU_TO_TICKS( 1122 2 * ic->ic_bmissthreshold * ni->ni_intval); 1123 ic->ic_swbmiss_count = 0; 1124 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 1125 ieee80211_swbmiss, ic); 1126 } 1127 /* 1128 * Start/stop the authenticator when operating as an 1129 * AP. We delay until here to allow configuration to 1130 * happen out of order. 1131 */ 1132 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1133 ic->ic_auth->ia_attach != NULL) { 1134 /* XXX check failure */ 1135 ic->ic_auth->ia_attach(ic); 1136 } else if (ic->ic_auth->ia_detach != NULL) { 1137 ic->ic_auth->ia_detach(ic); 1138 } 1139 /* 1140 * When 802.1x is not in use mark the port authorized 1141 * at this point so traffic can flow. 1142 */ 1143 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1144 ieee80211_node_authorize(ni); 1145 /* 1146 * Enable inactivity processing. 1147 * XXX 1148 */ 1149 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1150 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1151 break; 1152 } 1153 return 0; 1154 } 1155