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_opmode_name[IEEE80211_OPMODE_MAX] = { 73 "IBSS", /* IEEE80211_M_IBSS */ 74 "STA", /* IEEE80211_M_STA */ 75 "#2", 76 "AHDEMO", /* IEEE80211_M_AHDEMO */ 77 "#4", "#5", 78 "HOSTAP", /* IEEE80211_M_HOSTAP */ 79 "#7", 80 "MONITOR" /* IEEE80211_M_MONITOR */ 81 }; 82 const char *ieee80211_state_name[IEEE80211_S_MAX] = { 83 "INIT", /* IEEE80211_S_INIT */ 84 "SCAN", /* IEEE80211_S_SCAN */ 85 "AUTH", /* IEEE80211_S_AUTH */ 86 "ASSOC", /* IEEE80211_S_ASSOC */ 87 "RUN" /* IEEE80211_S_RUN */ 88 }; 89 const char *ieee80211_wme_acnames[] = { 90 "WME_AC_BE", 91 "WME_AC_BK", 92 "WME_AC_VI", 93 "WME_AC_VO", 94 "WME_UPSD", 95 }; 96 97 static int ieee80211_newstate(struct ieee80211com *, enum ieee80211_state, int); 98 99 void 100 ieee80211_proto_attach(struct ieee80211com *ic) 101 { 102 struct ifnet *ifp = ic->ic_ifp; 103 104 /* XXX room for crypto */ 105 ifp->if_hdrlen = sizeof(struct ieee80211_qosframe_addr4); 106 107 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 108 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT; 109 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 110 ic->ic_bmiss_max = IEEE80211_BMISS_MAX; 111 callout_init(&ic->ic_swbmiss, CALLOUT_MPSAFE); 112 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT; 113 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 114 ic->ic_roaming = IEEE80211_ROAMING_AUTO; 115 116 ic->ic_wme.wme_hipri_switch_hysteresis = 117 AGGRESSIVE_MODE_SWITCH_HYSTERESIS; 118 119 mtx_init(&ic->ic_mgtq.ifq_mtx, ifp->if_xname, "mgmt send q", MTX_DEF); 120 121 /* protocol state change handler */ 122 ic->ic_newstate = ieee80211_newstate; 123 124 /* initialize management frame handlers */ 125 ic->ic_recv_mgmt = ieee80211_recv_mgmt; 126 ic->ic_send_mgmt = ieee80211_send_mgmt; 127 ic->ic_raw_xmit = ieee80211_raw_xmit; 128 } 129 130 void 131 ieee80211_proto_detach(struct ieee80211com *ic) 132 { 133 134 /* 135 * This should not be needed as we detach when reseting 136 * the state but be conservative here since the 137 * authenticator may do things like spawn kernel threads. 138 */ 139 if (ic->ic_auth->ia_detach) 140 ic->ic_auth->ia_detach(ic); 141 142 ieee80211_drain_ifq(&ic->ic_mgtq); 143 mtx_destroy(&ic->ic_mgtq.ifq_mtx); 144 145 /* 146 * Detach any ACL'ator. 147 */ 148 if (ic->ic_acl != NULL) 149 ic->ic_acl->iac_detach(ic); 150 } 151 152 /* 153 * Simple-minded authenticator module support. 154 */ 155 156 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1) 157 /* XXX well-known names */ 158 static const char *auth_modnames[IEEE80211_AUTH_MAX] = { 159 "wlan_internal", /* IEEE80211_AUTH_NONE */ 160 "wlan_internal", /* IEEE80211_AUTH_OPEN */ 161 "wlan_internal", /* IEEE80211_AUTH_SHARED */ 162 "wlan_xauth", /* IEEE80211_AUTH_8021X */ 163 "wlan_internal", /* IEEE80211_AUTH_AUTO */ 164 "wlan_xauth", /* IEEE80211_AUTH_WPA */ 165 }; 166 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX]; 167 168 static const struct ieee80211_authenticator auth_internal = { 169 .ia_name = "wlan_internal", 170 .ia_attach = NULL, 171 .ia_detach = NULL, 172 .ia_node_join = NULL, 173 .ia_node_leave = NULL, 174 }; 175 176 /* 177 * Setup internal authenticators once; they are never unregistered. 178 */ 179 static void 180 ieee80211_auth_setup(void) 181 { 182 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal); 183 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal); 184 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal); 185 } 186 SYSINIT(wlan_auth, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_auth_setup, NULL); 187 188 const struct ieee80211_authenticator * 189 ieee80211_authenticator_get(int auth) 190 { 191 if (auth >= IEEE80211_AUTH_MAX) 192 return NULL; 193 if (authenticators[auth] == NULL) 194 ieee80211_load_module(auth_modnames[auth]); 195 return authenticators[auth]; 196 } 197 198 void 199 ieee80211_authenticator_register(int type, 200 const struct ieee80211_authenticator *auth) 201 { 202 if (type >= IEEE80211_AUTH_MAX) 203 return; 204 authenticators[type] = auth; 205 } 206 207 void 208 ieee80211_authenticator_unregister(int type) 209 { 210 211 if (type >= IEEE80211_AUTH_MAX) 212 return; 213 authenticators[type] = NULL; 214 } 215 216 /* 217 * Very simple-minded ACL module support. 218 */ 219 /* XXX just one for now */ 220 static const struct ieee80211_aclator *acl = NULL; 221 222 void 223 ieee80211_aclator_register(const struct ieee80211_aclator *iac) 224 { 225 printf("wlan: %s acl policy registered\n", iac->iac_name); 226 acl = iac; 227 } 228 229 void 230 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac) 231 { 232 if (acl == iac) 233 acl = NULL; 234 printf("wlan: %s acl policy unregistered\n", iac->iac_name); 235 } 236 237 const struct ieee80211_aclator * 238 ieee80211_aclator_get(const char *name) 239 { 240 if (acl == NULL) 241 ieee80211_load_module("wlan_acl"); 242 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL; 243 } 244 245 void 246 ieee80211_print_essid(const u_int8_t *essid, int len) 247 { 248 const u_int8_t *p; 249 int i; 250 251 if (len > IEEE80211_NWID_LEN) 252 len = IEEE80211_NWID_LEN; 253 /* determine printable or not */ 254 for (i = 0, p = essid; i < len; i++, p++) { 255 if (*p < ' ' || *p > 0x7e) 256 break; 257 } 258 if (i == len) { 259 printf("\""); 260 for (i = 0, p = essid; i < len; i++, p++) 261 printf("%c", *p); 262 printf("\""); 263 } else { 264 printf("0x"); 265 for (i = 0, p = essid; i < len; i++, p++) 266 printf("%02x", *p); 267 } 268 } 269 270 void 271 ieee80211_dump_pkt(const u_int8_t *buf, int len, int rate, int rssi) 272 { 273 const struct ieee80211_frame *wh; 274 int i; 275 276 wh = (const struct ieee80211_frame *)buf; 277 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 278 case IEEE80211_FC1_DIR_NODS: 279 printf("NODS %s", ether_sprintf(wh->i_addr2)); 280 printf("->%s", ether_sprintf(wh->i_addr1)); 281 printf("(%s)", ether_sprintf(wh->i_addr3)); 282 break; 283 case IEEE80211_FC1_DIR_TODS: 284 printf("TODS %s", ether_sprintf(wh->i_addr2)); 285 printf("->%s", ether_sprintf(wh->i_addr3)); 286 printf("(%s)", ether_sprintf(wh->i_addr1)); 287 break; 288 case IEEE80211_FC1_DIR_FROMDS: 289 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 290 printf("->%s", ether_sprintf(wh->i_addr1)); 291 printf("(%s)", ether_sprintf(wh->i_addr2)); 292 break; 293 case IEEE80211_FC1_DIR_DSTODS: 294 printf("DSDS %s", ether_sprintf((const u_int8_t *)&wh[1])); 295 printf("->%s", ether_sprintf(wh->i_addr3)); 296 printf("(%s", ether_sprintf(wh->i_addr2)); 297 printf("->%s)", ether_sprintf(wh->i_addr1)); 298 break; 299 } 300 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 301 case IEEE80211_FC0_TYPE_DATA: 302 printf(" data"); 303 break; 304 case IEEE80211_FC0_TYPE_MGT: 305 printf(" %s", ieee80211_mgt_subtype_name[ 306 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 307 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 308 break; 309 default: 310 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 311 break; 312 } 313 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 314 int i; 315 printf(" WEP [IV"); 316 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) 317 printf(" %.02x", buf[sizeof(*wh)+i]); 318 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6); 319 } 320 if (rate >= 0) 321 printf(" %dM", rate / 2); 322 if (rssi >= 0) 323 printf(" +%d", rssi); 324 printf("\n"); 325 if (len > 0) { 326 for (i = 0; i < len; i++) { 327 if ((i & 1) == 0) 328 printf(" "); 329 printf("%02x", buf[i]); 330 } 331 printf("\n"); 332 } 333 } 334 335 static __inline int 336 findrix(const struct ieee80211_rateset *rs, int r) 337 { 338 int i; 339 340 for (i = 0; i < rs->rs_nrates; i++) 341 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == r) 342 return i; 343 return -1; 344 } 345 346 int 347 ieee80211_fix_rate(struct ieee80211_node *ni, 348 struct ieee80211_rateset *nrs, int flags) 349 { 350 #define RV(v) ((v) & IEEE80211_RATE_VAL) 351 struct ieee80211com *ic = ni->ni_ic; 352 int i, j, rix, error; 353 int okrate, badrate, fixedrate; 354 const struct ieee80211_rateset *srs; 355 u_int8_t r; 356 357 /* 358 * If the fixed rate check was requested but no 359 * fixed has been defined then just remove it. 360 */ 361 if ((flags & IEEE80211_F_DOFRATE) && 362 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 363 flags &= ~IEEE80211_F_DOFRATE; 364 error = 0; 365 okrate = badrate = fixedrate = 0; 366 srs = ieee80211_get_suprates(ic, ni->ni_chan); 367 for (i = 0; i < nrs->rs_nrates; ) { 368 if (flags & IEEE80211_F_DOSORT) { 369 /* 370 * Sort rates. 371 */ 372 for (j = i + 1; j < nrs->rs_nrates; j++) { 373 if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) { 374 r = nrs->rs_rates[i]; 375 nrs->rs_rates[i] = nrs->rs_rates[j]; 376 nrs->rs_rates[j] = r; 377 } 378 } 379 } 380 r = nrs->rs_rates[i] & IEEE80211_RATE_VAL; 381 badrate = r; 382 if (flags & IEEE80211_F_DOFRATE) { 383 /* 384 * Check any fixed rate is included. 385 */ 386 if (r == RV(srs->rs_rates[ic->ic_fixed_rate])) 387 fixedrate = r; 388 } 389 /* 390 * Check against supported rates. 391 */ 392 rix = findrix(srs, r); 393 if (flags & IEEE80211_F_DONEGO) { 394 if (rix < 0) { 395 /* 396 * A rate in the node's rate set is not 397 * supported. If this is a basic rate and we 398 * are operating as a STA then this is an error. 399 * Otherwise we just discard/ignore the rate. 400 */ 401 if ((flags & IEEE80211_F_JOIN) && 402 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC)) 403 error++; 404 } else if ((flags & IEEE80211_F_JOIN) == 0) { 405 /* 406 * Overwrite with the supported rate 407 * value so any basic rate bit is set. 408 */ 409 nrs->rs_rates[i] = srs->rs_rates[rix]; 410 } 411 } 412 if ((flags & IEEE80211_F_DODEL) && rix < 0) { 413 /* 414 * Delete unacceptable rates. 415 */ 416 nrs->rs_nrates--; 417 for (j = i; j < nrs->rs_nrates; j++) 418 nrs->rs_rates[j] = nrs->rs_rates[j + 1]; 419 nrs->rs_rates[j] = 0; 420 continue; 421 } 422 if (rix >= 0) 423 okrate = nrs->rs_rates[i]; 424 i++; 425 } 426 if (okrate == 0 || error != 0 || 427 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 428 return badrate | IEEE80211_RATE_BASIC; 429 else 430 return RV(okrate); 431 #undef RV 432 } 433 434 /* 435 * Reset 11g-related state. 436 */ 437 void 438 ieee80211_reset_erp(struct ieee80211com *ic) 439 { 440 ic->ic_flags &= ~IEEE80211_F_USEPROT; 441 ic->ic_nonerpsta = 0; 442 ic->ic_longslotsta = 0; 443 /* 444 * Short slot time is enabled only when operating in 11g 445 * and not in an IBSS. We must also honor whether or not 446 * the driver is capable of doing it. 447 */ 448 ieee80211_set_shortslottime(ic, 449 ic->ic_curmode == IEEE80211_MODE_11A || 450 (ic->ic_curmode == IEEE80211_MODE_11G && 451 ic->ic_opmode == IEEE80211_M_HOSTAP && 452 (ic->ic_caps & IEEE80211_C_SHSLOT))); 453 /* 454 * Set short preamble and ERP barker-preamble flags. 455 */ 456 if (ic->ic_curmode == IEEE80211_MODE_11A || 457 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 458 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 459 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 460 } else { 461 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 462 ic->ic_flags |= IEEE80211_F_USEBARKER; 463 } 464 } 465 466 /* 467 * Set the short slot time state and notify the driver. 468 */ 469 void 470 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff) 471 { 472 if (onoff) 473 ic->ic_flags |= IEEE80211_F_SHSLOT; 474 else 475 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 476 /* notify driver */ 477 if (ic->ic_updateslot != NULL) 478 ic->ic_updateslot(ic->ic_ifp); 479 } 480 481 /* 482 * Check if the specified rate set supports ERP. 483 * NB: the rate set is assumed to be sorted. 484 */ 485 int 486 ieee80211_iserp_rateset(struct ieee80211com *ic, struct ieee80211_rateset *rs) 487 { 488 #define N(a) (sizeof(a) / sizeof(a[0])) 489 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 490 int i, j; 491 492 if (rs->rs_nrates < N(rates)) 493 return 0; 494 for (i = 0; i < N(rates); i++) { 495 for (j = 0; j < rs->rs_nrates; j++) { 496 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 497 if (rates[i] == r) 498 goto next; 499 if (r > rates[i]) 500 return 0; 501 } 502 return 0; 503 next: 504 ; 505 } 506 return 1; 507 #undef N 508 } 509 510 /* 511 * Mark the basic rates for the 11g rate table based on the 512 * operating mode. For real 11g we mark all the 11b rates 513 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 514 * 11b rates. There's also a pseudo 11a-mode used to mark only 515 * the basic OFDM rates. 516 */ 517 void 518 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 519 { 520 static const struct ieee80211_rateset basic[] = { 521 { 0 }, /* IEEE80211_MODE_AUTO */ 522 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 523 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 524 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 525 { 0 }, /* IEEE80211_MODE_FH */ 526 /* IEEE80211_MODE_PUREG (not yet) */ 527 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 528 }; 529 int i, j; 530 531 for (i = 0; i < rs->rs_nrates; i++) { 532 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 533 for (j = 0; j < basic[mode].rs_nrates; j++) 534 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 535 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 536 break; 537 } 538 } 539 } 540 541 /* 542 * WME protocol support. The following parameters come from the spec. 543 */ 544 typedef struct phyParamType { 545 u_int8_t aifsn; 546 u_int8_t logcwmin; 547 u_int8_t logcwmax; 548 u_int16_t txopLimit; 549 u_int8_t acm; 550 } paramType; 551 552 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 553 { 3, 4, 6 }, /* IEEE80211_MODE_AUTO */ 554 { 3, 4, 6 }, /* IEEE80211_MODE_11A */ 555 { 3, 5, 7 }, /* IEEE80211_MODE_11B */ 556 { 3, 4, 6 }, /* IEEE80211_MODE_11G */ 557 { 3, 5, 7 }, /* IEEE80211_MODE_FH */ 558 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_A */ 559 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_G */ 560 }; 561 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 562 { 7, 4, 10 }, /* IEEE80211_MODE_AUTO */ 563 { 7, 4, 10 }, /* IEEE80211_MODE_11A */ 564 { 7, 5, 10 }, /* IEEE80211_MODE_11B */ 565 { 7, 4, 10 }, /* IEEE80211_MODE_11G */ 566 { 7, 5, 10 }, /* IEEE80211_MODE_FH */ 567 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 568 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 569 }; 570 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 571 { 1, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 572 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 573 { 1, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 574 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 575 { 1, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 576 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 577 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 578 }; 579 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 580 { 1, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 581 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 582 { 1, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 583 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 584 { 1, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 585 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 586 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 587 }; 588 589 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 590 { 3, 4, 10 }, /* IEEE80211_MODE_AUTO */ 591 { 3, 4, 10 }, /* IEEE80211_MODE_11A */ 592 { 3, 5, 10 }, /* IEEE80211_MODE_11B */ 593 { 3, 4, 10 }, /* IEEE80211_MODE_11G */ 594 { 3, 5, 10 }, /* IEEE80211_MODE_FH */ 595 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 596 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 597 }; 598 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 599 { 2, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 600 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 601 { 2, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 602 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 603 { 2, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 604 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 605 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 606 }; 607 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 608 { 2, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 609 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 610 { 2, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 611 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 612 { 2, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 613 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 614 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 615 }; 616 617 void 618 ieee80211_wme_initparams(struct ieee80211com *ic) 619 { 620 struct ieee80211_wme_state *wme = &ic->ic_wme; 621 const paramType *pPhyParam, *pBssPhyParam; 622 struct wmeParams *wmep; 623 int i; 624 625 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 626 return; 627 628 for (i = 0; i < WME_NUM_AC; i++) { 629 switch (i) { 630 case WME_AC_BK: 631 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 632 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 633 break; 634 case WME_AC_VI: 635 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 636 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 637 break; 638 case WME_AC_VO: 639 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 640 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 641 break; 642 case WME_AC_BE: 643 default: 644 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 645 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 646 break; 647 } 648 649 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 650 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 651 wmep->wmep_acm = pPhyParam->acm; 652 wmep->wmep_aifsn = pPhyParam->aifsn; 653 wmep->wmep_logcwmin = pPhyParam->logcwmin; 654 wmep->wmep_logcwmax = pPhyParam->logcwmax; 655 wmep->wmep_txopLimit = pPhyParam->txopLimit; 656 } else { 657 wmep->wmep_acm = pBssPhyParam->acm; 658 wmep->wmep_aifsn = pBssPhyParam->aifsn; 659 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 660 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 661 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 662 663 } 664 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 665 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 666 "log2(cwmax) %u txpoLimit %u]\n", __func__ 667 , ieee80211_wme_acnames[i] 668 , wmep->wmep_acm 669 , wmep->wmep_aifsn 670 , wmep->wmep_logcwmin 671 , wmep->wmep_logcwmax 672 , wmep->wmep_txopLimit 673 ); 674 675 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 676 wmep->wmep_acm = pBssPhyParam->acm; 677 wmep->wmep_aifsn = pBssPhyParam->aifsn; 678 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 679 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 680 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 681 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 682 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 683 "log2(cwmax) %u txpoLimit %u]\n", __func__ 684 , ieee80211_wme_acnames[i] 685 , wmep->wmep_acm 686 , wmep->wmep_aifsn 687 , wmep->wmep_logcwmin 688 , wmep->wmep_logcwmax 689 , wmep->wmep_txopLimit 690 ); 691 } 692 /* NB: check ic_bss to avoid NULL deref on initial attach */ 693 if (ic->ic_bss != NULL) { 694 /* 695 * Calculate agressive mode switching threshold based 696 * on beacon interval. This doesn't need locking since 697 * we're only called before entering the RUN state at 698 * which point we start sending beacon frames. 699 */ 700 wme->wme_hipri_switch_thresh = 701 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 702 ieee80211_wme_updateparams(ic); 703 } 704 } 705 706 /* 707 * Update WME parameters for ourself and the BSS. 708 */ 709 void 710 ieee80211_wme_updateparams_locked(struct ieee80211com *ic) 711 { 712 static const paramType phyParam[IEEE80211_MODE_MAX] = { 713 { 2, 4, 10, 64 }, /* IEEE80211_MODE_AUTO */ 714 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11A */ 715 { 2, 5, 10, 64 }, /* IEEE80211_MODE_11B */ 716 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11G */ 717 { 2, 5, 10, 64 }, /* IEEE80211_MODE_FH */ 718 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_A */ 719 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_G */ 720 }; 721 struct ieee80211_wme_state *wme = &ic->ic_wme; 722 const struct wmeParams *wmep; 723 struct wmeParams *chanp, *bssp; 724 int i; 725 726 /* set up the channel access parameters for the physical device */ 727 for (i = 0; i < WME_NUM_AC; i++) { 728 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 729 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 730 chanp->wmep_aifsn = wmep->wmep_aifsn; 731 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 732 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 733 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 734 735 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 736 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 737 chanp->wmep_aifsn = wmep->wmep_aifsn; 738 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 739 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 740 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 741 } 742 743 /* 744 * This implements agressive mode as found in certain 745 * vendors' AP's. When there is significant high 746 * priority (VI/VO) traffic in the BSS throttle back BE 747 * traffic by using conservative parameters. Otherwise 748 * BE uses agressive params to optimize performance of 749 * legacy/non-QoS traffic. 750 */ 751 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 752 (wme->wme_flags & WME_F_AGGRMODE) != 0) || 753 (ic->ic_opmode == IEEE80211_M_STA && 754 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 755 (ic->ic_flags & IEEE80211_F_WME) == 0) { 756 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 757 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 758 759 chanp->wmep_aifsn = bssp->wmep_aifsn = 760 phyParam[ic->ic_curmode].aifsn; 761 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 762 phyParam[ic->ic_curmode].logcwmin; 763 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 764 phyParam[ic->ic_curmode].logcwmax; 765 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 766 (ic->ic_flags & IEEE80211_F_BURST) ? 767 phyParam[ic->ic_curmode].txopLimit : 0; 768 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 769 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 770 "log2(cwmax) %u txpoLimit %u]\n", __func__ 771 , ieee80211_wme_acnames[WME_AC_BE] 772 , chanp->wmep_acm 773 , chanp->wmep_aifsn 774 , chanp->wmep_logcwmin 775 , chanp->wmep_logcwmax 776 , chanp->wmep_txopLimit 777 ); 778 } 779 780 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 781 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) != 0) { 782 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = { 783 3, /* IEEE80211_MODE_AUTO */ 784 3, /* IEEE80211_MODE_11A */ 785 4, /* IEEE80211_MODE_11B */ 786 3, /* IEEE80211_MODE_11G */ 787 4, /* IEEE80211_MODE_FH */ 788 3, /* IEEE80211_MODE_TURBO_A */ 789 3, /* IEEE80211_MODE_TURBO_G */ 790 }; 791 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 792 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 793 794 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 795 logCwMin[ic->ic_curmode]; 796 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 797 "%s: %s log2(cwmin) %u\n", __func__ 798 , ieee80211_wme_acnames[WME_AC_BE] 799 , chanp->wmep_logcwmin 800 ); 801 } 802 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 803 /* 804 * Arrange for a beacon update and bump the parameter 805 * set number so associated stations load the new values. 806 */ 807 wme->wme_bssChanParams.cap_info = 808 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 809 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 810 } 811 812 wme->wme_update(ic); 813 814 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 815 "%s: WME params updated, cap_info 0x%x\n", __func__, 816 ic->ic_opmode == IEEE80211_M_STA ? 817 wme->wme_wmeChanParams.cap_info : 818 wme->wme_bssChanParams.cap_info); 819 } 820 821 void 822 ieee80211_wme_updateparams(struct ieee80211com *ic) 823 { 824 825 if (ic->ic_caps & IEEE80211_C_WME) { 826 IEEE80211_BEACON_LOCK(ic); 827 ieee80211_wme_updateparams_locked(ic); 828 IEEE80211_BEACON_UNLOCK(ic); 829 } 830 } 831 832 void 833 ieee80211_beacon_miss(struct ieee80211com *ic) 834 { 835 836 if (ic->ic_flags & IEEE80211_F_SCAN) { 837 /* XXX check ic_curchan != ic_bsschan? */ 838 return; 839 } 840 IEEE80211_DPRINTF(ic, 841 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 842 "%s\n", "beacon miss"); 843 844 /* 845 * Our handling is only meaningful for stations that are 846 * associated; any other conditions else will be handled 847 * through different means (e.g. the tx timeout on mgt frames). 848 */ 849 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN) 850 return; 851 852 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) { 853 /* 854 * Send a directed probe req before falling back to a scan; 855 * if we receive a response ic_bmiss_count will be reset. 856 * Some cards mistakenly report beacon miss so this avoids 857 * the expensive scan if the ap is still there. 858 */ 859 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr, 860 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid, 861 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen, 862 ic->ic_opt_ie, ic->ic_opt_ie_len); 863 return; 864 } 865 ic->ic_bmiss_count = 0; 866 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 867 } 868 869 /* 870 * Software beacon miss handling. Check if any beacons 871 * were received in the last period. If not post a 872 * beacon miss; otherwise reset the counter. 873 */ 874 static void 875 ieee80211_swbmiss(void *arg) 876 { 877 struct ieee80211com *ic = arg; 878 879 if (ic->ic_swbmiss_count == 0) { 880 ieee80211_beacon_miss(ic); 881 if (ic->ic_bmiss_count == 0) /* don't re-arm timer */ 882 return; 883 } else 884 ic->ic_swbmiss_count = 0; 885 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 886 ieee80211_swbmiss, ic); 887 } 888 889 static void 890 sta_disassoc(void *arg, struct ieee80211_node *ni) 891 { 892 struct ieee80211com *ic = arg; 893 894 if (ni->ni_associd != 0) { 895 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 896 IEEE80211_REASON_ASSOC_LEAVE); 897 ieee80211_node_leave(ic, ni); 898 } 899 } 900 901 static void 902 sta_deauth(void *arg, struct ieee80211_node *ni) 903 { 904 struct ieee80211com *ic = arg; 905 906 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 907 IEEE80211_REASON_ASSOC_LEAVE); 908 } 909 910 static int 911 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 912 { 913 struct ifnet *ifp = ic->ic_ifp; 914 struct ieee80211_node *ni; 915 enum ieee80211_state ostate; 916 917 ostate = ic->ic_state; 918 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 919 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 920 ic->ic_state = nstate; /* state transition */ 921 ni = ic->ic_bss; /* NB: no reference held */ 922 if (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS) 923 callout_stop(&ic->ic_swbmiss); 924 switch (nstate) { 925 case IEEE80211_S_INIT: 926 switch (ostate) { 927 case IEEE80211_S_INIT: 928 break; 929 case IEEE80211_S_RUN: 930 switch (ic->ic_opmode) { 931 case IEEE80211_M_STA: 932 IEEE80211_SEND_MGMT(ic, ni, 933 IEEE80211_FC0_SUBTYPE_DISASSOC, 934 IEEE80211_REASON_ASSOC_LEAVE); 935 ieee80211_sta_leave(ic, ni); 936 break; 937 case IEEE80211_M_HOSTAP: 938 ieee80211_iterate_nodes(&ic->ic_sta, 939 sta_disassoc, ic); 940 break; 941 default: 942 break; 943 } 944 break; 945 case IEEE80211_S_ASSOC: 946 switch (ic->ic_opmode) { 947 case IEEE80211_M_STA: 948 IEEE80211_SEND_MGMT(ic, ni, 949 IEEE80211_FC0_SUBTYPE_DEAUTH, 950 IEEE80211_REASON_AUTH_LEAVE); 951 break; 952 case IEEE80211_M_HOSTAP: 953 ieee80211_iterate_nodes(&ic->ic_sta, 954 sta_deauth, ic); 955 break; 956 default: 957 break; 958 } 959 break; 960 case IEEE80211_S_SCAN: 961 ieee80211_cancel_scan(ic); 962 break; 963 case IEEE80211_S_AUTH: 964 break; 965 } 966 if (ostate != IEEE80211_S_INIT) { 967 /* NB: optimize INIT -> INIT case */ 968 ic->ic_mgt_timer = 0; 969 ieee80211_drain_ifq(&ic->ic_mgtq); 970 ieee80211_reset_bss(ic); 971 } 972 if (ic->ic_auth->ia_detach != NULL) 973 ic->ic_auth->ia_detach(ic); 974 break; 975 case IEEE80211_S_SCAN: 976 switch (ostate) { 977 case IEEE80211_S_INIT: 978 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 979 ic->ic_opmode == IEEE80211_M_IBSS || 980 ic->ic_opmode == IEEE80211_M_AHDEMO) && 981 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 982 /* 983 * AP operation and we already have a channel; 984 * bypass the scan and startup immediately. 985 */ 986 ieee80211_create_ibss(ic, ic->ic_des_chan); 987 } else { 988 ieee80211_begin_scan(ic, arg); 989 } 990 break; 991 case IEEE80211_S_SCAN: 992 /* 993 * Scan next. If doing an active scan probe 994 * for the requested ap (if any). 995 */ 996 if (ic->ic_flags & IEEE80211_F_ASCAN) 997 ieee80211_probe_curchan(ic, 0); 998 break; 999 case IEEE80211_S_RUN: 1000 /* beacon miss */ 1001 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 1002 "no recent beacons from %s; rescanning\n", 1003 ether_sprintf(ic->ic_bss->ni_bssid)); 1004 ieee80211_sta_leave(ic, ni); 1005 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 1006 /* FALLTHRU */ 1007 case IEEE80211_S_AUTH: 1008 case IEEE80211_S_ASSOC: 1009 /* timeout restart scan */ 1010 ni = ieee80211_find_node(&ic->ic_scan, 1011 ic->ic_bss->ni_macaddr); 1012 if (ni != NULL) { 1013 ni->ni_fails++; 1014 ieee80211_unref_node(&ni); 1015 } 1016 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 1017 ieee80211_begin_scan(ic, arg); 1018 break; 1019 } 1020 break; 1021 case IEEE80211_S_AUTH: 1022 switch (ostate) { 1023 case IEEE80211_S_INIT: 1024 case IEEE80211_S_SCAN: 1025 IEEE80211_SEND_MGMT(ic, ni, 1026 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1027 break; 1028 case IEEE80211_S_AUTH: 1029 case IEEE80211_S_ASSOC: 1030 switch (arg) { 1031 case IEEE80211_FC0_SUBTYPE_AUTH: 1032 /* ??? */ 1033 IEEE80211_SEND_MGMT(ic, ni, 1034 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1035 break; 1036 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1037 /* ignore and retry scan on timeout */ 1038 break; 1039 } 1040 break; 1041 case IEEE80211_S_RUN: 1042 switch (arg) { 1043 case IEEE80211_FC0_SUBTYPE_AUTH: 1044 IEEE80211_SEND_MGMT(ic, ni, 1045 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1046 ic->ic_state = ostate; /* stay RUN */ 1047 break; 1048 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1049 ieee80211_sta_leave(ic, ni); 1050 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1051 /* try to reauth */ 1052 IEEE80211_SEND_MGMT(ic, ni, 1053 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1054 } 1055 break; 1056 } 1057 break; 1058 } 1059 break; 1060 case IEEE80211_S_ASSOC: 1061 switch (ostate) { 1062 case IEEE80211_S_INIT: 1063 case IEEE80211_S_SCAN: 1064 case IEEE80211_S_ASSOC: 1065 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1066 "%s: invalid transition\n", __func__); 1067 break; 1068 case IEEE80211_S_AUTH: 1069 IEEE80211_SEND_MGMT(ic, ni, 1070 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1071 break; 1072 case IEEE80211_S_RUN: 1073 ieee80211_sta_leave(ic, ni); 1074 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1075 IEEE80211_SEND_MGMT(ic, ni, 1076 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1077 } 1078 break; 1079 } 1080 break; 1081 case IEEE80211_S_RUN: 1082 if (ic->ic_flags & IEEE80211_F_WPA) { 1083 /* XXX validate prerequisites */ 1084 } 1085 switch (ostate) { 1086 case IEEE80211_S_INIT: 1087 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1088 break; 1089 /* fall thru... */ 1090 case IEEE80211_S_AUTH: 1091 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1092 "%s: invalid transition\n", __func__); 1093 /* fall thru... */ 1094 case IEEE80211_S_RUN: 1095 break; 1096 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1097 case IEEE80211_S_ASSOC: /* infra mode */ 1098 KASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1099 ("%s: bogus xmit rate %u setup\n", __func__, 1100 ni->ni_txrate)); 1101 #ifdef IEEE80211_DEBUG 1102 if (ieee80211_msg_debug(ic)) { 1103 if (ic->ic_opmode == IEEE80211_M_STA) 1104 if_printf(ifp, "associated "); 1105 else 1106 if_printf(ifp, "synchronized "); 1107 printf("with %s ssid ", 1108 ether_sprintf(ni->ni_bssid)); 1109 ieee80211_print_essid(ic->ic_bss->ni_essid, 1110 ni->ni_esslen); 1111 printf(" channel %d start %uMb\n", 1112 ieee80211_chan2ieee(ic, ic->ic_curchan), 1113 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1114 } 1115 #endif 1116 ic->ic_mgt_timer = 0; 1117 if (ic->ic_opmode == IEEE80211_M_STA) 1118 ieee80211_notify_node_join(ic, ni, 1119 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1120 if_start(ifp); /* XXX not authorized yet */ 1121 break; 1122 } 1123 if (ostate != IEEE80211_S_RUN && 1124 ic->ic_opmode == IEEE80211_M_STA && 1125 (ic->ic_flags_ext & IEEE80211_FEXT_SWBMISS)) { 1126 /* 1127 * Start s/w beacon miss timer for devices w/o 1128 * hardware support. We fudge a bit here since 1129 * we're doing this in software. 1130 */ 1131 ic->ic_swbmiss_period = IEEE80211_TU_TO_TICKS( 1132 2 * ic->ic_bmissthreshold * ni->ni_intval); 1133 ic->ic_swbmiss_count = 0; 1134 callout_reset(&ic->ic_swbmiss, ic->ic_swbmiss_period, 1135 ieee80211_swbmiss, ic); 1136 } 1137 /* 1138 * Start/stop the authenticator when operating as an 1139 * AP. We delay until here to allow configuration to 1140 * happen out of order. 1141 */ 1142 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1143 ic->ic_auth->ia_attach != NULL) { 1144 /* XXX check failure */ 1145 ic->ic_auth->ia_attach(ic); 1146 } else if (ic->ic_auth->ia_detach != NULL) { 1147 ic->ic_auth->ia_detach(ic); 1148 } 1149 /* 1150 * When 802.1x is not in use mark the port authorized 1151 * at this point so traffic can flow. 1152 */ 1153 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1154 ieee80211_node_authorize(ni); 1155 /* 1156 * Enable inactivity processing. 1157 * XXX 1158 */ 1159 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1160 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1161 break; 1162 } 1163 return 0; 1164 } 1165