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 ieee80211_drain_ifq(&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 static __inline int 326 findrix(const struct ieee80211_rateset *rs, int r) 327 { 328 int i; 329 330 for (i = 0; i < rs->rs_nrates; i++) 331 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == r) 332 return i; 333 return -1; 334 } 335 336 int 337 ieee80211_fix_rate(struct ieee80211_node *ni, int flags) 338 { 339 #define RV(v) ((v) & IEEE80211_RATE_VAL) 340 struct ieee80211com *ic = ni->ni_ic; 341 int i, j, rix, error; 342 int okrate, badrate, fixedrate; 343 const struct ieee80211_rateset *srs; 344 struct ieee80211_rateset *nrs; 345 u_int8_t r; 346 347 /* 348 * If the fixed rate check was requested but no 349 * fixed has been defined then just remove it. 350 */ 351 if ((flags & IEEE80211_F_DOFRATE) && 352 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 353 flags &= ~IEEE80211_F_DOFRATE; 354 error = 0; 355 okrate = badrate = fixedrate = 0; 356 srs = ieee80211_get_suprates(ic, ni->ni_chan); 357 nrs = &ni->ni_rates; 358 for (i = 0; i < nrs->rs_nrates; ) { 359 if (flags & IEEE80211_F_DOSORT) { 360 /* 361 * Sort rates. 362 */ 363 for (j = i + 1; j < nrs->rs_nrates; j++) { 364 if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) { 365 r = nrs->rs_rates[i]; 366 nrs->rs_rates[i] = nrs->rs_rates[j]; 367 nrs->rs_rates[j] = r; 368 } 369 } 370 } 371 r = nrs->rs_rates[i] & IEEE80211_RATE_VAL; 372 badrate = r; 373 if (flags & IEEE80211_F_DOFRATE) { 374 /* 375 * Check any fixed rate is included. 376 */ 377 if (r == RV(srs->rs_rates[ic->ic_fixed_rate])) 378 fixedrate = r; 379 } 380 /* 381 * Check against supported rates. 382 */ 383 rix = findrix(srs, r); 384 if (flags & IEEE80211_F_DONEGO) { 385 if (rix < 0) { 386 /* 387 * A rate in the node's rate set is not 388 * supported. If this is a basic rate and we 389 * are operating as a STA then this is an error. 390 * Otherwise we just discard/ignore the rate. 391 */ 392 if ((flags & IEEE80211_F_JOIN) && 393 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC)) 394 error++; 395 } else if ((flags & IEEE80211_F_JOIN) == 0) { 396 /* 397 * Overwrite with the supported rate 398 * value so any basic rate bit is set. 399 */ 400 nrs->rs_rates[i] = srs->rs_rates[rix]; 401 } 402 } 403 if ((flags & IEEE80211_F_DODEL) && rix < 0) { 404 /* 405 * Delete unacceptable rates. 406 */ 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 if (rix >= 0) 414 okrate = nrs->rs_rates[i]; 415 i++; 416 } 417 if (okrate == 0 || error != 0 || 418 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 419 return badrate | IEEE80211_RATE_BASIC; 420 else 421 return RV(okrate); 422 #undef RV 423 } 424 425 /* 426 * Reset 11g-related state. 427 */ 428 void 429 ieee80211_reset_erp(struct ieee80211com *ic) 430 { 431 ic->ic_flags &= ~IEEE80211_F_USEPROT; 432 ic->ic_nonerpsta = 0; 433 ic->ic_longslotsta = 0; 434 /* 435 * Short slot time is enabled only when operating in 11g 436 * and not in an IBSS. We must also honor whether or not 437 * the driver is capable of doing it. 438 */ 439 ieee80211_set_shortslottime(ic, 440 ic->ic_curmode == IEEE80211_MODE_11A || 441 (ic->ic_curmode == IEEE80211_MODE_11G && 442 ic->ic_opmode == IEEE80211_M_HOSTAP && 443 (ic->ic_caps & IEEE80211_C_SHSLOT))); 444 /* 445 * Set short preamble and ERP barker-preamble flags. 446 */ 447 if (ic->ic_curmode == IEEE80211_MODE_11A || 448 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 449 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 450 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 451 } else { 452 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 453 ic->ic_flags |= IEEE80211_F_USEBARKER; 454 } 455 } 456 457 /* 458 * Set the short slot time state and notify the driver. 459 */ 460 void 461 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff) 462 { 463 if (onoff) 464 ic->ic_flags |= IEEE80211_F_SHSLOT; 465 else 466 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 467 /* notify driver */ 468 if (ic->ic_updateslot != NULL) 469 ic->ic_updateslot(ic->ic_ifp); 470 } 471 472 /* 473 * Check if the specified rate set supports ERP. 474 * NB: the rate set is assumed to be sorted. 475 */ 476 int 477 ieee80211_iserp_rateset(struct ieee80211com *ic, struct ieee80211_rateset *rs) 478 { 479 #define N(a) (sizeof(a) / sizeof(a[0])) 480 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 481 int i, j; 482 483 if (rs->rs_nrates < N(rates)) 484 return 0; 485 for (i = 0; i < N(rates); i++) { 486 for (j = 0; j < rs->rs_nrates; j++) { 487 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 488 if (rates[i] == r) 489 goto next; 490 if (r > rates[i]) 491 return 0; 492 } 493 return 0; 494 next: 495 ; 496 } 497 return 1; 498 #undef N 499 } 500 501 /* 502 * Mark the basic rates for the 11g rate table based on the 503 * operating mode. For real 11g we mark all the 11b rates 504 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 505 * 11b rates. There's also a pseudo 11a-mode used to mark only 506 * the basic OFDM rates. 507 */ 508 void 509 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 510 { 511 static const struct ieee80211_rateset basic[] = { 512 { 0 }, /* IEEE80211_MODE_AUTO */ 513 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 514 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 515 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 516 { 0 }, /* IEEE80211_MODE_FH */ 517 /* IEEE80211_MODE_PUREG (not yet) */ 518 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 519 }; 520 int i, j; 521 522 for (i = 0; i < rs->rs_nrates; i++) { 523 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 524 for (j = 0; j < basic[mode].rs_nrates; j++) 525 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 526 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 527 break; 528 } 529 } 530 } 531 532 /* 533 * WME protocol support. The following parameters come from the spec. 534 */ 535 typedef struct phyParamType { 536 u_int8_t aifsn; 537 u_int8_t logcwmin; 538 u_int8_t logcwmax; 539 u_int16_t txopLimit; 540 u_int8_t acm; 541 } paramType; 542 543 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 544 { 3, 4, 6 }, /* IEEE80211_MODE_AUTO */ 545 { 3, 4, 6 }, /* IEEE80211_MODE_11A */ 546 { 3, 5, 7 }, /* IEEE80211_MODE_11B */ 547 { 3, 4, 6 }, /* IEEE80211_MODE_11G */ 548 { 3, 5, 7 }, /* IEEE80211_MODE_FH */ 549 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_A */ 550 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_G */ 551 }; 552 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 553 { 7, 4, 10 }, /* IEEE80211_MODE_AUTO */ 554 { 7, 4, 10 }, /* IEEE80211_MODE_11A */ 555 { 7, 5, 10 }, /* IEEE80211_MODE_11B */ 556 { 7, 4, 10 }, /* IEEE80211_MODE_11G */ 557 { 7, 5, 10 }, /* IEEE80211_MODE_FH */ 558 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 559 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 560 }; 561 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 562 { 1, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 563 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 564 { 1, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 565 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 566 { 1, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 567 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 568 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 569 }; 570 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 571 { 1, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 572 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 573 { 1, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 574 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 575 { 1, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 576 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 577 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 578 }; 579 580 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 581 { 3, 4, 10 }, /* IEEE80211_MODE_AUTO */ 582 { 3, 4, 10 }, /* IEEE80211_MODE_11A */ 583 { 3, 5, 10 }, /* IEEE80211_MODE_11B */ 584 { 3, 4, 10 }, /* IEEE80211_MODE_11G */ 585 { 3, 5, 10 }, /* IEEE80211_MODE_FH */ 586 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 587 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 588 }; 589 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 590 { 2, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 591 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 592 { 2, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 593 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 594 { 2, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 595 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 596 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 597 }; 598 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 599 { 2, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 600 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 601 { 2, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 602 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 603 { 2, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 604 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 605 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 606 }; 607 608 void 609 ieee80211_wme_initparams(struct ieee80211com *ic) 610 { 611 struct ieee80211_wme_state *wme = &ic->ic_wme; 612 const paramType *pPhyParam, *pBssPhyParam; 613 struct wmeParams *wmep; 614 int i; 615 616 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 617 return; 618 619 for (i = 0; i < WME_NUM_AC; i++) { 620 switch (i) { 621 case WME_AC_BK: 622 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 623 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 624 break; 625 case WME_AC_VI: 626 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 627 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 628 break; 629 case WME_AC_VO: 630 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 631 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 632 break; 633 case WME_AC_BE: 634 default: 635 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 636 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 637 break; 638 } 639 640 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 641 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 642 wmep->wmep_acm = pPhyParam->acm; 643 wmep->wmep_aifsn = pPhyParam->aifsn; 644 wmep->wmep_logcwmin = pPhyParam->logcwmin; 645 wmep->wmep_logcwmax = pPhyParam->logcwmax; 646 wmep->wmep_txopLimit = pPhyParam->txopLimit; 647 } else { 648 wmep->wmep_acm = pBssPhyParam->acm; 649 wmep->wmep_aifsn = pBssPhyParam->aifsn; 650 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 651 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 652 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 653 654 } 655 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 656 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 657 "log2(cwmax) %u txpoLimit %u]\n", __func__ 658 , ieee80211_wme_acnames[i] 659 , wmep->wmep_acm 660 , wmep->wmep_aifsn 661 , wmep->wmep_logcwmin 662 , wmep->wmep_logcwmax 663 , wmep->wmep_txopLimit 664 ); 665 666 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 667 wmep->wmep_acm = pBssPhyParam->acm; 668 wmep->wmep_aifsn = pBssPhyParam->aifsn; 669 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 670 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 671 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 672 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 673 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 674 "log2(cwmax) %u txpoLimit %u]\n", __func__ 675 , ieee80211_wme_acnames[i] 676 , wmep->wmep_acm 677 , wmep->wmep_aifsn 678 , wmep->wmep_logcwmin 679 , wmep->wmep_logcwmax 680 , wmep->wmep_txopLimit 681 ); 682 } 683 /* NB: check ic_bss to avoid NULL deref on initial attach */ 684 if (ic->ic_bss != NULL) { 685 /* 686 * Calculate agressive mode switching threshold based 687 * on beacon interval. This doesn't need locking since 688 * we're only called before entering the RUN state at 689 * which point we start sending beacon frames. 690 */ 691 wme->wme_hipri_switch_thresh = 692 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 693 ieee80211_wme_updateparams(ic); 694 } 695 } 696 697 /* 698 * Update WME parameters for ourself and the BSS. 699 */ 700 void 701 ieee80211_wme_updateparams_locked(struct ieee80211com *ic) 702 { 703 static const paramType phyParam[IEEE80211_MODE_MAX] = { 704 { 2, 4, 10, 64 }, /* IEEE80211_MODE_AUTO */ 705 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11A */ 706 { 2, 5, 10, 64 }, /* IEEE80211_MODE_11B */ 707 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11G */ 708 { 2, 5, 10, 64 }, /* IEEE80211_MODE_FH */ 709 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_A */ 710 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_G */ 711 }; 712 struct ieee80211_wme_state *wme = &ic->ic_wme; 713 const struct wmeParams *wmep; 714 struct wmeParams *chanp, *bssp; 715 int i; 716 717 /* set up the channel access parameters for the physical device */ 718 for (i = 0; i < WME_NUM_AC; i++) { 719 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 720 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 721 chanp->wmep_aifsn = wmep->wmep_aifsn; 722 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 723 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 724 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 725 726 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 727 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 728 chanp->wmep_aifsn = wmep->wmep_aifsn; 729 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 730 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 731 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 732 } 733 734 /* 735 * This implements agressive mode as found in certain 736 * vendors' AP's. When there is significant high 737 * priority (VI/VO) traffic in the BSS throttle back BE 738 * traffic by using conservative parameters. Otherwise 739 * BE uses agressive params to optimize performance of 740 * legacy/non-QoS traffic. 741 */ 742 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 743 (wme->wme_flags & WME_F_AGGRMODE) != 0) || 744 (ic->ic_opmode == IEEE80211_M_STA && 745 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 746 (ic->ic_flags & IEEE80211_F_WME) == 0) { 747 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 748 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 749 750 chanp->wmep_aifsn = bssp->wmep_aifsn = 751 phyParam[ic->ic_curmode].aifsn; 752 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 753 phyParam[ic->ic_curmode].logcwmin; 754 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 755 phyParam[ic->ic_curmode].logcwmax; 756 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 757 (ic->ic_flags & IEEE80211_F_BURST) ? 758 phyParam[ic->ic_curmode].txopLimit : 0; 759 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 760 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 761 "log2(cwmax) %u txpoLimit %u]\n", __func__ 762 , ieee80211_wme_acnames[WME_AC_BE] 763 , chanp->wmep_acm 764 , chanp->wmep_aifsn 765 , chanp->wmep_logcwmin 766 , chanp->wmep_logcwmax 767 , chanp->wmep_txopLimit 768 ); 769 } 770 771 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 772 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) != 0) { 773 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = { 774 3, /* IEEE80211_MODE_AUTO */ 775 3, /* IEEE80211_MODE_11A */ 776 4, /* IEEE80211_MODE_11B */ 777 3, /* IEEE80211_MODE_11G */ 778 4, /* IEEE80211_MODE_FH */ 779 3, /* IEEE80211_MODE_TURBO_A */ 780 3, /* IEEE80211_MODE_TURBO_G */ 781 }; 782 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 783 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 784 785 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 786 logCwMin[ic->ic_curmode]; 787 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 788 "%s: %s log2(cwmin) %u\n", __func__ 789 , ieee80211_wme_acnames[WME_AC_BE] 790 , chanp->wmep_logcwmin 791 ); 792 } 793 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 794 /* 795 * Arrange for a beacon update and bump the parameter 796 * set number so associated stations load the new values. 797 */ 798 wme->wme_bssChanParams.cap_info = 799 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 800 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 801 } 802 803 wme->wme_update(ic); 804 805 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 806 "%s: WME params updated, cap_info 0x%x\n", __func__, 807 ic->ic_opmode == IEEE80211_M_STA ? 808 wme->wme_wmeChanParams.cap_info : 809 wme->wme_bssChanParams.cap_info); 810 } 811 812 void 813 ieee80211_wme_updateparams(struct ieee80211com *ic) 814 { 815 816 if (ic->ic_caps & IEEE80211_C_WME) { 817 IEEE80211_BEACON_LOCK(ic); 818 ieee80211_wme_updateparams_locked(ic); 819 IEEE80211_BEACON_UNLOCK(ic); 820 } 821 } 822 823 void 824 ieee80211_beacon_miss(struct ieee80211com *ic) 825 { 826 827 if (ic->ic_flags & IEEE80211_F_SCAN) { 828 /* XXX check ic_curchan != ic_bsschan? */ 829 return; 830 } 831 IEEE80211_DPRINTF(ic, 832 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 833 "%s\n", "beacon miss"); 834 835 /* 836 * Our handling is only meaningful for stations that are 837 * associated; any other conditions else will be handled 838 * through different means (e.g. the tx timeout on mgt frames). 839 */ 840 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN) 841 return; 842 843 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) { 844 /* 845 * Send a directed probe req before falling back to a scan; 846 * if we receive a response ic_bmiss_count will be reset. 847 * Some cards mistakenly report beacon miss so this avoids 848 * the expensive scan if the ap is still there. 849 */ 850 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr, 851 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid, 852 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen, 853 ic->ic_opt_ie, ic->ic_opt_ie_len); 854 return; 855 } 856 ic->ic_bmiss_count = 0; 857 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 858 } 859 860 /* 861 * Software beacon miss handling. Check if any beacons 862 * were received in the last period. If not post a 863 * beacon miss; otherwise reset the counter. 864 */ 865 static void 866 ieee80211_swbmiss(void *arg) 867 { 868 struct ieee80211com *ic = arg; 869 870 if (ic->ic_swbmiss_count == 0) { 871 ieee80211_beacon_miss(ic); 872 if (ic->ic_bmiss_count == 0) /* don't re-arm timer */ 873 return; 874 } else 875 ic->ic_swbmiss_count = 0; 876 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 877 ieee80211_swbmiss, ic); 878 } 879 880 static void 881 sta_disassoc(void *arg, struct ieee80211_node *ni) 882 { 883 struct ieee80211com *ic = arg; 884 885 if (ni->ni_associd != 0) { 886 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 887 IEEE80211_REASON_ASSOC_LEAVE); 888 ieee80211_node_leave(ic, ni); 889 } 890 } 891 892 static void 893 sta_deauth(void *arg, struct ieee80211_node *ni) 894 { 895 struct ieee80211com *ic = arg; 896 897 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 898 IEEE80211_REASON_ASSOC_LEAVE); 899 } 900 901 static int 902 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 903 { 904 struct ifnet *ifp = ic->ic_ifp; 905 struct ieee80211_node *ni; 906 enum ieee80211_state ostate; 907 908 ostate = ic->ic_state; 909 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 910 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 911 ic->ic_state = nstate; /* state transition */ 912 ni = ic->ic_bss; /* NB: no reference held */ 913 if (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS) 914 callout_stop(&ic->ic_swbmiss); 915 switch (nstate) { 916 case IEEE80211_S_INIT: 917 switch (ostate) { 918 case IEEE80211_S_INIT: 919 break; 920 case IEEE80211_S_RUN: 921 switch (ic->ic_opmode) { 922 case IEEE80211_M_STA: 923 IEEE80211_SEND_MGMT(ic, ni, 924 IEEE80211_FC0_SUBTYPE_DISASSOC, 925 IEEE80211_REASON_ASSOC_LEAVE); 926 ieee80211_sta_leave(ic, ni); 927 break; 928 case IEEE80211_M_HOSTAP: 929 ieee80211_iterate_nodes(&ic->ic_sta, 930 sta_disassoc, ic); 931 break; 932 default: 933 break; 934 } 935 break; 936 case IEEE80211_S_ASSOC: 937 switch (ic->ic_opmode) { 938 case IEEE80211_M_STA: 939 IEEE80211_SEND_MGMT(ic, ni, 940 IEEE80211_FC0_SUBTYPE_DEAUTH, 941 IEEE80211_REASON_AUTH_LEAVE); 942 break; 943 case IEEE80211_M_HOSTAP: 944 ieee80211_iterate_nodes(&ic->ic_sta, 945 sta_deauth, ic); 946 break; 947 default: 948 break; 949 } 950 break; 951 case IEEE80211_S_SCAN: 952 ieee80211_cancel_scan(ic); 953 break; 954 case IEEE80211_S_AUTH: 955 break; 956 } 957 if (ostate != IEEE80211_S_INIT) { 958 /* NB: optimize INIT -> INIT case */ 959 ic->ic_mgt_timer = 0; 960 ieee80211_drain_ifq(&ic->ic_mgtq); 961 ieee80211_reset_bss(ic); 962 } 963 if (ic->ic_auth->ia_detach != NULL) 964 ic->ic_auth->ia_detach(ic); 965 break; 966 case IEEE80211_S_SCAN: 967 switch (ostate) { 968 case IEEE80211_S_INIT: 969 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 970 ic->ic_opmode == IEEE80211_M_IBSS || 971 ic->ic_opmode == IEEE80211_M_AHDEMO) && 972 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 973 /* 974 * AP operation and we already have a channel; 975 * bypass the scan and startup immediately. 976 */ 977 ieee80211_create_ibss(ic, ic->ic_des_chan); 978 } else { 979 ieee80211_begin_scan(ic, arg); 980 } 981 break; 982 case IEEE80211_S_SCAN: 983 /* 984 * Scan next. If doing an active scan probe 985 * for the requested ap (if any). 986 */ 987 if (ic->ic_flags & IEEE80211_F_ASCAN) 988 ieee80211_probe_curchan(ic, 0); 989 break; 990 case IEEE80211_S_RUN: 991 /* beacon miss */ 992 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 993 "no recent beacons from %s; rescanning\n", 994 ether_sprintf(ic->ic_bss->ni_bssid)); 995 ieee80211_sta_leave(ic, ni); 996 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 997 /* FALLTHRU */ 998 case IEEE80211_S_AUTH: 999 case IEEE80211_S_ASSOC: 1000 /* timeout restart scan */ 1001 ni = ieee80211_find_node(&ic->ic_scan, 1002 ic->ic_bss->ni_macaddr); 1003 if (ni != NULL) { 1004 ni->ni_fails++; 1005 ieee80211_unref_node(&ni); 1006 } 1007 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 1008 ieee80211_begin_scan(ic, arg); 1009 break; 1010 } 1011 break; 1012 case IEEE80211_S_AUTH: 1013 switch (ostate) { 1014 case IEEE80211_S_INIT: 1015 case IEEE80211_S_SCAN: 1016 IEEE80211_SEND_MGMT(ic, ni, 1017 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1018 break; 1019 case IEEE80211_S_AUTH: 1020 case IEEE80211_S_ASSOC: 1021 switch (arg) { 1022 case IEEE80211_FC0_SUBTYPE_AUTH: 1023 /* ??? */ 1024 IEEE80211_SEND_MGMT(ic, ni, 1025 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1026 break; 1027 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1028 /* ignore and retry scan on timeout */ 1029 break; 1030 } 1031 break; 1032 case IEEE80211_S_RUN: 1033 switch (arg) { 1034 case IEEE80211_FC0_SUBTYPE_AUTH: 1035 IEEE80211_SEND_MGMT(ic, ni, 1036 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1037 ic->ic_state = ostate; /* stay RUN */ 1038 break; 1039 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1040 ieee80211_sta_leave(ic, ni); 1041 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1042 /* try to reauth */ 1043 IEEE80211_SEND_MGMT(ic, ni, 1044 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1045 } 1046 break; 1047 } 1048 break; 1049 } 1050 break; 1051 case IEEE80211_S_ASSOC: 1052 switch (ostate) { 1053 case IEEE80211_S_INIT: 1054 case IEEE80211_S_SCAN: 1055 case IEEE80211_S_ASSOC: 1056 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1057 "%s: invalid transition\n", __func__); 1058 break; 1059 case IEEE80211_S_AUTH: 1060 IEEE80211_SEND_MGMT(ic, ni, 1061 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1062 break; 1063 case IEEE80211_S_RUN: 1064 ieee80211_sta_leave(ic, ni); 1065 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1066 IEEE80211_SEND_MGMT(ic, ni, 1067 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1068 } 1069 break; 1070 } 1071 break; 1072 case IEEE80211_S_RUN: 1073 if (ic->ic_flags & IEEE80211_F_WPA) { 1074 /* XXX validate prerequisites */ 1075 } 1076 switch (ostate) { 1077 case IEEE80211_S_INIT: 1078 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1079 break; 1080 /* fall thru... */ 1081 case IEEE80211_S_AUTH: 1082 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1083 "%s: invalid transition\n", __func__); 1084 /* fall thru... */ 1085 case IEEE80211_S_RUN: 1086 break; 1087 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1088 case IEEE80211_S_ASSOC: /* infra mode */ 1089 KASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1090 ("%s: bogus xmit rate %u setup\n", __func__, 1091 ni->ni_txrate)); 1092 #ifdef IEEE80211_DEBUG 1093 if (ieee80211_msg_debug(ic)) { 1094 if (ic->ic_opmode == IEEE80211_M_STA) 1095 if_printf(ifp, "associated "); 1096 else 1097 if_printf(ifp, "synchronized "); 1098 printf("with %s ssid ", 1099 ether_sprintf(ni->ni_bssid)); 1100 ieee80211_print_essid(ic->ic_bss->ni_essid, 1101 ni->ni_esslen); 1102 printf(" channel %d start %uMb\n", 1103 ieee80211_chan2ieee(ic, ic->ic_curchan), 1104 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1105 } 1106 #endif 1107 ic->ic_mgt_timer = 0; 1108 if (ic->ic_opmode == IEEE80211_M_STA) 1109 ieee80211_notify_node_join(ic, ni, 1110 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1111 if_start(ifp); /* XXX not authorized yet */ 1112 break; 1113 } 1114 if (ostate != IEEE80211_S_RUN && 1115 ic->ic_opmode == IEEE80211_M_STA && 1116 (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS)) { 1117 /* 1118 * Start s/w beacon miss timer for devices w/o 1119 * hardware support. We fudge a bit here since 1120 * we're doing this in software. 1121 */ 1122 ic->ic_swbmiss_period = IEEE80211_TU_TO_TICKS( 1123 2 * ic->ic_bmissthreshold * ni->ni_intval); 1124 ic->ic_swbmiss_count = 0; 1125 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 1126 ieee80211_swbmiss, ic); 1127 } 1128 /* 1129 * Start/stop the authenticator when operating as an 1130 * AP. We delay until here to allow configuration to 1131 * happen out of order. 1132 */ 1133 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1134 ic->ic_auth->ia_attach != NULL) { 1135 /* XXX check failure */ 1136 ic->ic_auth->ia_attach(ic); 1137 } else if (ic->ic_auth->ia_detach != NULL) { 1138 ic->ic_auth->ia_detach(ic); 1139 } 1140 /* 1141 * When 802.1x is not in use mark the port authorized 1142 * at this point so traffic can flow. 1143 */ 1144 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1145 ieee80211_node_authorize(ni); 1146 /* 1147 * Enable inactivity processing. 1148 * XXX 1149 */ 1150 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1151 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1152 break; 1153 } 1154 return 0; 1155 } 1156