1 /* $NetBSD: ieee80211_proto.c,v 1.29 2008/01/13 13:01:12 degroote Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU General Public License ("GPL") version 2 as published by the Free 20 * Software Foundation. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #ifdef __FreeBSD__ 36 __FBSDID("$FreeBSD: src/sys/net80211/ieee80211_proto.c,v 1.23 2005/08/10 16:22:29 sam Exp $"); 37 #endif 38 #ifdef __NetBSD__ 39 __KERNEL_RCSID(0, "$NetBSD: ieee80211_proto.c,v 1.29 2008/01/13 13:01:12 degroote Exp $"); 40 #endif 41 42 /* 43 * IEEE 802.11 protocol support. 44 */ 45 46 #include "opt_inet.h" 47 48 #include <sys/param.h> 49 #include <sys/kernel.h> 50 #include <sys/systm.h> 51 52 #include <sys/socket.h> 53 #include <sys/sockio.h> 54 #include <sys/endian.h> 55 #include <sys/errno.h> 56 #include <sys/proc.h> 57 #include <sys/sysctl.h> 58 59 #include <net/if.h> 60 #include <net/if_media.h> 61 #include <net/if_arp.h> 62 #include <net/if_ether.h> 63 #include <net/if_llc.h> 64 65 #include <net80211/ieee80211_netbsd.h> 66 #include <net80211/ieee80211_var.h> 67 68 #include <net/bpf.h> 69 70 #ifdef INET 71 #include <netinet/in.h> 72 #include <net/if_ether.h> 73 #endif 74 75 #include <net/route.h> 76 /* XXX tunables */ 77 #define AGGRESSIVE_MODE_SWITCH_HYSTERESIS 3 /* pkts / 100ms */ 78 #define HIGH_PRI_SWITCH_THRESH 10 /* pkts / 100ms */ 79 80 #define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2) 81 82 const char *ieee80211_mgt_subtype_name[] = { 83 "assoc_req", "assoc_resp", "reassoc_req", "reassoc_resp", 84 "probe_req", "probe_resp", "reserved#6", "reserved#7", 85 "beacon", "atim", "disassoc", "auth", 86 "deauth", "reserved#13", "reserved#14", "reserved#15" 87 }; 88 const char *ieee80211_ctl_subtype_name[] = { 89 "reserved#0", "reserved#1", "reserved#2", "reserved#3", 90 "reserved#3", "reserved#5", "reserved#6", "reserved#7", 91 "reserved#8", "reserved#9", "ps_poll", "rts", 92 "cts", "ack", "cf_end", "cf_end_ack" 93 }; 94 const char *ieee80211_state_name[IEEE80211_S_MAX] = { 95 "INIT", /* IEEE80211_S_INIT */ 96 "SCAN", /* IEEE80211_S_SCAN */ 97 "AUTH", /* IEEE80211_S_AUTH */ 98 "ASSOC", /* IEEE80211_S_ASSOC */ 99 "RUN" /* IEEE80211_S_RUN */ 100 }; 101 const char *ieee80211_wme_acnames[] = { 102 "WME_AC_BE", 103 "WME_AC_BK", 104 "WME_AC_VI", 105 "WME_AC_VO", 106 "WME_UPSD", 107 }; 108 109 static int ieee80211_newstate(struct ieee80211com *, enum ieee80211_state, int); 110 111 void 112 ieee80211_proto_attach(struct ieee80211com *ic) 113 { 114 struct ifnet *ifp = ic->ic_ifp; 115 116 /* XXX room for crypto */ 117 ifp->if_hdrlen = sizeof(struct ieee80211_qosframe_addr4); 118 119 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 120 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT; 121 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 122 ic->ic_bmiss_max = IEEE80211_BMISS_MAX; 123 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT; 124 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 125 ic->ic_roaming = IEEE80211_ROAMING_AUTO; 126 127 ic->ic_wme.wme_hipri_switch_hysteresis = 128 AGGRESSIVE_MODE_SWITCH_HYSTERESIS; 129 130 /* protocol state change handler */ 131 ic->ic_newstate = ieee80211_newstate; 132 133 /* initialize management frame handlers */ 134 ic->ic_recv_mgmt = ieee80211_recv_mgmt; 135 ic->ic_send_mgmt = ieee80211_send_mgmt; 136 } 137 138 void 139 ieee80211_proto_detach(struct ieee80211com *ic) 140 { 141 142 /* 143 * This should not be needed as we detach when reseting 144 * the state but be conservative here since the 145 * authenticator may do things like spawn kernel threads. 146 */ 147 if (ic->ic_auth->ia_detach) 148 ic->ic_auth->ia_detach(ic); 149 150 ieee80211_drain_ifq(&ic->ic_mgtq); 151 152 /* 153 * Detach any ACL'ator. 154 */ 155 if (ic->ic_acl != NULL) 156 ic->ic_acl->iac_detach(ic); 157 } 158 159 /* 160 * Simple-minded authenticator module support. 161 */ 162 163 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1) 164 /* XXX well-known names */ 165 static const char *auth_modnames[IEEE80211_AUTH_MAX] = { 166 "wlan_internal", /* IEEE80211_AUTH_NONE */ 167 "wlan_internal", /* IEEE80211_AUTH_OPEN */ 168 "wlan_internal", /* IEEE80211_AUTH_SHARED */ 169 "wlan_xauth", /* IEEE80211_AUTH_8021X */ 170 "wlan_internal", /* IEEE80211_AUTH_AUTO */ 171 "wlan_xauth", /* IEEE80211_AUTH_WPA */ 172 }; 173 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX]; 174 175 static const struct ieee80211_authenticator auth_internal = { 176 .ia_name = "wlan_internal", 177 .ia_attach = NULL, 178 .ia_detach = NULL, 179 .ia_node_join = NULL, 180 .ia_node_leave = NULL, 181 }; 182 183 /* 184 * Setup internal authenticators once; they are never unregistered. 185 */ 186 static void 187 ieee80211_auth_setup(void) 188 { 189 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal); 190 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal); 191 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal); 192 } 193 194 const struct ieee80211_authenticator * 195 ieee80211_authenticator_get(int auth) 196 { 197 static int initialized = 0; 198 if (!initialized) { 199 ieee80211_auth_setup(); 200 initialized = 1; 201 } 202 if (auth >= IEEE80211_AUTH_MAX) 203 return NULL; 204 if (authenticators[auth] == NULL) 205 ieee80211_load_module(auth_modnames[auth]); 206 return authenticators[auth]; 207 } 208 209 void 210 ieee80211_authenticator_register(int type, 211 const struct ieee80211_authenticator *auth) 212 { 213 if (type >= IEEE80211_AUTH_MAX) 214 return; 215 authenticators[type] = auth; 216 } 217 218 void 219 ieee80211_authenticator_unregister(int type) 220 { 221 222 if (type >= IEEE80211_AUTH_MAX) 223 return; 224 authenticators[type] = NULL; 225 } 226 227 /* 228 * Very simple-minded ACL module support. 229 */ 230 /* XXX just one for now */ 231 static const struct ieee80211_aclator *acl = NULL; 232 233 void 234 ieee80211_aclator_register(const struct ieee80211_aclator *iac) 235 { 236 printf("wlan: %s acl policy registered\n", iac->iac_name); 237 acl = iac; 238 } 239 240 void 241 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac) 242 { 243 if (acl == iac) 244 acl = NULL; 245 printf("wlan: %s acl policy unregistered\n", iac->iac_name); 246 } 247 248 const struct ieee80211_aclator * 249 ieee80211_aclator_get(const char *name) 250 { 251 if (acl == NULL) 252 ieee80211_load_module("wlan_acl"); 253 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL; 254 } 255 256 void 257 ieee80211_print_essid(const u_int8_t *essid, int len) 258 { 259 const u_int8_t *p; 260 int i; 261 262 if (len > IEEE80211_NWID_LEN) 263 len = IEEE80211_NWID_LEN; 264 /* determine printable or not */ 265 for (i = 0, p = essid; i < len; i++, p++) { 266 if (*p < ' ' || *p > 0x7e) 267 break; 268 } 269 if (i == len) { 270 printf("\""); 271 for (i = 0, p = essid; i < len; i++, p++) 272 printf("%c", *p); 273 printf("\""); 274 } else { 275 printf("0x"); 276 for (i = 0, p = essid; i < len; i++, p++) 277 printf("%02x", *p); 278 } 279 } 280 281 void 282 ieee80211_dump_pkt(const u_int8_t *buf, int len, int rate, int rssi) 283 { 284 const struct ieee80211_frame *wh; 285 int i; 286 287 wh = (const struct ieee80211_frame *)buf; 288 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 289 case IEEE80211_FC1_DIR_NODS: 290 printf("NODS %s", ether_sprintf(wh->i_addr2)); 291 printf("->%s", ether_sprintf(wh->i_addr1)); 292 printf("(%s)", ether_sprintf(wh->i_addr3)); 293 break; 294 case IEEE80211_FC1_DIR_TODS: 295 printf("TODS %s", ether_sprintf(wh->i_addr2)); 296 printf("->%s", ether_sprintf(wh->i_addr3)); 297 printf("(%s)", ether_sprintf(wh->i_addr1)); 298 break; 299 case IEEE80211_FC1_DIR_FROMDS: 300 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 301 printf("->%s", ether_sprintf(wh->i_addr1)); 302 printf("(%s)", ether_sprintf(wh->i_addr2)); 303 break; 304 case IEEE80211_FC1_DIR_DSTODS: 305 printf("DSDS %s", ether_sprintf((const u_int8_t *)&wh[1])); 306 printf("->%s", ether_sprintf(wh->i_addr3)); 307 printf("(%s", ether_sprintf(wh->i_addr2)); 308 printf("->%s)", ether_sprintf(wh->i_addr1)); 309 break; 310 } 311 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 312 case IEEE80211_FC0_TYPE_DATA: 313 printf(" data"); 314 break; 315 case IEEE80211_FC0_TYPE_MGT: 316 printf(" %s", ieee80211_mgt_subtype_name[ 317 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 318 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 319 break; 320 default: 321 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 322 break; 323 } 324 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 325 printf(" WEP [IV"); 326 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) 327 printf(" %.02x", buf[sizeof(*wh)+i]); 328 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6); 329 } 330 if (rate >= 0) 331 printf(" %dM", rate / 2); 332 if (rssi >= 0) 333 printf(" +%d", rssi); 334 printf("\n"); 335 if (len > 0) { 336 for (i = 0; i < len; i++) { 337 if ((i & 1) == 0) 338 printf(" "); 339 printf("%02x", buf[i]); 340 } 341 printf("\n"); 342 } 343 } 344 345 int 346 ieee80211_fix_rate(struct ieee80211_node *ni, int flags) 347 { 348 #define RV(v) ((v) & IEEE80211_RATE_VAL) 349 struct ieee80211com *ic = ni->ni_ic; 350 int i, j, ignore, error; 351 int okrate, badrate, fixedrate; 352 struct ieee80211_rateset *srs, *nrs; 353 u_int8_t r; 354 355 /* 356 * If the fixed rate check was requested but no 357 * fixed has been defined then just remove it. 358 */ 359 if ((flags & IEEE80211_F_DOFRATE) && 360 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 361 flags &= ~IEEE80211_F_DOFRATE; 362 error = 0; 363 okrate = badrate = fixedrate = 0; 364 srs = &ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 365 nrs = &ni->ni_rates; 366 for (i = 0; i < nrs->rs_nrates; ) { 367 ignore = 0; 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 if (flags & IEEE80211_F_DONEGO) { 390 /* 391 * Check against supported rates. 392 */ 393 for (j = 0; j < srs->rs_nrates; j++) { 394 if (r == RV(srs->rs_rates[j])) { 395 /* 396 * Overwrite with the supported rate 397 * value so any basic rate bit is set. 398 * This insures that response we send 399 * to stations have the necessary basic 400 * rate bit set. 401 */ 402 nrs->rs_rates[i] = srs->rs_rates[j]; 403 break; 404 } 405 } 406 if (j == srs->rs_nrates) { 407 /* 408 * A rate in the node's rate set is not 409 * supported. If this is a basic rate and we 410 * are operating as an AP then this is an error. 411 * Otherwise we just discard/ignore the rate. 412 * Note that this is important for 11b stations 413 * when they want to associate with an 11g AP. 414 */ 415 #ifndef IEEE80211_NO_HOSTAP 416 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 417 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC)) 418 error++; 419 #endif /* !IEEE80211_NO_HOSTAP */ 420 ignore++; 421 } 422 } 423 if (flags & IEEE80211_F_DODEL) { 424 /* 425 * Delete unacceptable rates. 426 */ 427 if (ignore) { 428 nrs->rs_nrates--; 429 for (j = i; j < nrs->rs_nrates; j++) 430 nrs->rs_rates[j] = nrs->rs_rates[j + 1]; 431 nrs->rs_rates[j] = 0; 432 continue; 433 } 434 } 435 if (!ignore) { 436 okrate = nrs->rs_rates[i]; 437 ni->ni_txrate = i; 438 } 439 i++; 440 } 441 if (okrate == 0 || error != 0 || 442 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 443 return badrate | IEEE80211_RATE_BASIC; 444 else 445 return RV(okrate); 446 #undef RV 447 } 448 449 /* 450 * Reset 11g-related state. 451 */ 452 void 453 ieee80211_reset_erp(struct ieee80211com *ic) 454 { 455 ic->ic_flags &= ~IEEE80211_F_USEPROT; 456 ic->ic_nonerpsta = 0; 457 ic->ic_longslotsta = 0; 458 /* 459 * Short slot time is enabled only when operating in 11g 460 * and not in an IBSS. We must also honor whether or not 461 * the driver is capable of doing it. 462 */ 463 ieee80211_set_shortslottime(ic, 464 ic->ic_curmode == IEEE80211_MODE_11A || 465 (ic->ic_curmode == IEEE80211_MODE_11G && 466 ic->ic_opmode == IEEE80211_M_HOSTAP && 467 (ic->ic_caps & IEEE80211_C_SHSLOT))); 468 /* 469 * Set short preamble and ERP barker-preamble flags. 470 */ 471 if (ic->ic_curmode == IEEE80211_MODE_11A || 472 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 473 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 474 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 475 } else { 476 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 477 ic->ic_flags |= IEEE80211_F_USEBARKER; 478 } 479 } 480 481 /* 482 * Set the short slot time state and notify the driver. 483 */ 484 void 485 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff) 486 { 487 if (onoff) 488 ic->ic_flags |= IEEE80211_F_SHSLOT; 489 else 490 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 491 /* notify driver */ 492 if (ic->ic_updateslot != NULL) 493 ic->ic_updateslot(ic->ic_ifp); 494 } 495 496 /* 497 * Check if the specified rate set supports ERP. 498 * NB: the rate set is assumed to be sorted. 499 */ 500 int 501 ieee80211_iserp_rateset(struct ieee80211com *ic, 502 struct ieee80211_rateset *rs) 503 { 504 #define N(a) (sizeof(a) / sizeof(a[0])) 505 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 506 int i, j; 507 508 if (rs->rs_nrates < N(rates)) 509 return 0; 510 for (i = 0; i < N(rates); i++) { 511 for (j = 0; j < rs->rs_nrates; j++) { 512 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 513 if (rates[i] == r) 514 goto next; 515 if (r > rates[i]) 516 return 0; 517 } 518 return 0; 519 next: 520 ; 521 } 522 return 1; 523 #undef N 524 } 525 526 /* 527 * Mark the basic rates for the 11g rate table based on the 528 * operating mode. For real 11g we mark all the 11b rates 529 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 530 * 11b rates. There's also a pseudo 11a-mode used to mark only 531 * the basic OFDM rates. 532 */ 533 void 534 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 535 { 536 static const struct ieee80211_rateset basic[] = { 537 { .rs_nrates = 0 }, /* IEEE80211_MODE_AUTO */ 538 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 539 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 540 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 541 { .rs_nrates = 0 }, /* IEEE80211_MODE_FH */ 542 /* IEEE80211_MODE_PUREG (not yet) */ 543 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 544 }; 545 int i, j; 546 547 for (i = 0; i < rs->rs_nrates; i++) { 548 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 549 for (j = 0; j < basic[mode].rs_nrates; j++) 550 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 551 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 552 break; 553 } 554 } 555 } 556 557 /* 558 * WME protocol support. The following parameters come from the spec. 559 */ 560 typedef struct phyParamType { 561 u_int8_t aifsn; 562 u_int8_t logcwmin; 563 u_int8_t logcwmax; 564 u_int16_t txopLimit; 565 u_int8_t acm; 566 } paramType; 567 568 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 569 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_AUTO */ 570 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_11A */ 571 { 3, 5, 7, 0, 0, }, /* IEEE80211_MODE_11B */ 572 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_11G */ 573 { 3, 5, 7, 0, 0, }, /* IEEE80211_MODE_FH */ 574 { 2, 3, 5, 0, 0, }, /* IEEE80211_MODE_TURBO_A */ 575 { 2, 3, 5, 0, 0, }, /* IEEE80211_MODE_TURBO_G */ 576 }; 577 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 578 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_AUTO */ 579 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_11A */ 580 { 7, 5, 10, 0, 0, }, /* IEEE80211_MODE_11B */ 581 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_11G */ 582 { 7, 5, 10, 0, 0, }, /* IEEE80211_MODE_FH */ 583 { 7, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_A */ 584 { 7, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_G */ 585 }; 586 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 587 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_AUTO */ 588 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_11A */ 589 { 1, 4, 5, 188, 0, }, /* IEEE80211_MODE_11B */ 590 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_11G */ 591 { 1, 4, 5, 188, 0, }, /* IEEE80211_MODE_FH */ 592 { 1, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_A */ 593 { 1, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_G */ 594 }; 595 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 596 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_AUTO */ 597 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_11A */ 598 { 1, 3, 4, 102, 0, }, /* IEEE80211_MODE_11B */ 599 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_11G */ 600 { 1, 3, 4, 102, 0, }, /* IEEE80211_MODE_FH */ 601 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_A */ 602 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_G */ 603 }; 604 605 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 606 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_AUTO */ 607 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_11A */ 608 { 3, 5, 10, 0, 0, }, /* IEEE80211_MODE_11B */ 609 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_11G */ 610 { 3, 5, 10, 0, 0, }, /* IEEE80211_MODE_FH */ 611 { 2, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_A */ 612 { 2, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_G */ 613 }; 614 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 615 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_AUTO */ 616 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_11A */ 617 { 2, 4, 5, 188, 0, }, /* IEEE80211_MODE_11B */ 618 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_11G */ 619 { 2, 4, 5, 188, 0, }, /* IEEE80211_MODE_FH */ 620 { 2, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_A */ 621 { 2, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_G */ 622 }; 623 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 624 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_AUTO */ 625 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_11A */ 626 { 2, 3, 4, 102, 0, }, /* IEEE80211_MODE_11B */ 627 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_11G */ 628 { 2, 3, 4, 102, 0, }, /* IEEE80211_MODE_FH */ 629 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_A */ 630 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_G */ 631 }; 632 633 void 634 ieee80211_wme_initparams(struct ieee80211com *ic) 635 { 636 struct ieee80211_wme_state *wme = &ic->ic_wme; 637 const paramType *pPhyParam, *pBssPhyParam; 638 struct wmeParams *wmep; 639 int i; 640 641 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 642 return; 643 644 for (i = 0; i < WME_NUM_AC; i++) { 645 switch (i) { 646 case WME_AC_BK: 647 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 648 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 649 break; 650 case WME_AC_VI: 651 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 652 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 653 break; 654 case WME_AC_VO: 655 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 656 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 657 break; 658 case WME_AC_BE: 659 default: 660 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 661 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 662 break; 663 } 664 665 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 666 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 667 wmep->wmep_acm = pPhyParam->acm; 668 wmep->wmep_aifsn = pPhyParam->aifsn; 669 wmep->wmep_logcwmin = pPhyParam->logcwmin; 670 wmep->wmep_logcwmax = pPhyParam->logcwmax; 671 wmep->wmep_txopLimit = pPhyParam->txopLimit; 672 } else { 673 wmep->wmep_acm = pBssPhyParam->acm; 674 wmep->wmep_aifsn = pBssPhyParam->aifsn; 675 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 676 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 677 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 678 679 } 680 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 681 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 682 "log2(cwmax) %u txpoLimit %u]\n", __func__ 683 , ieee80211_wme_acnames[i] 684 , wmep->wmep_acm 685 , wmep->wmep_aifsn 686 , wmep->wmep_logcwmin 687 , wmep->wmep_logcwmax 688 , wmep->wmep_txopLimit 689 ); 690 691 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 692 wmep->wmep_acm = pBssPhyParam->acm; 693 wmep->wmep_aifsn = pBssPhyParam->aifsn; 694 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 695 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 696 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 697 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 698 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 699 "log2(cwmax) %u txpoLimit %u]\n", __func__ 700 , ieee80211_wme_acnames[i] 701 , wmep->wmep_acm 702 , wmep->wmep_aifsn 703 , wmep->wmep_logcwmin 704 , wmep->wmep_logcwmax 705 , wmep->wmep_txopLimit 706 ); 707 } 708 /* NB: check ic_bss to avoid NULL deref on initial attach */ 709 if (ic->ic_bss != NULL) { 710 /* 711 * Calculate agressive mode switching threshold based 712 * on beacon interval. This doesn't need locking since 713 * we're only called before entering the RUN state at 714 * which point we start sending beacon frames. 715 */ 716 wme->wme_hipri_switch_thresh = 717 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 718 ieee80211_wme_updateparams(ic); 719 } 720 } 721 722 /* 723 * Update WME parameters for ourself and the BSS. 724 */ 725 void 726 ieee80211_wme_updateparams_locked(struct ieee80211com *ic) 727 { 728 static const paramType phyParam[IEEE80211_MODE_MAX] = { 729 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_AUTO */ 730 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_11A */ 731 { 2, 5, 10, 64, 0, }, /* IEEE80211_MODE_11B */ 732 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_11G */ 733 { 2, 5, 10, 64, 0, }, /* IEEE80211_MODE_FH */ 734 { 1, 3, 10, 64, 0, }, /* IEEE80211_MODE_TURBO_A */ 735 { 1, 3, 10, 64, 0, }, /* IEEE80211_MODE_TURBO_G */ 736 }; 737 struct ieee80211_wme_state *wme = &ic->ic_wme; 738 const struct wmeParams *wmep; 739 struct wmeParams *chanp, *bssp; 740 int i; 741 742 /* set up the channel access parameters for the physical device */ 743 for (i = 0; i < WME_NUM_AC; i++) { 744 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 745 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 746 chanp->wmep_aifsn = wmep->wmep_aifsn; 747 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 748 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 749 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 750 751 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 752 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 753 chanp->wmep_aifsn = wmep->wmep_aifsn; 754 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 755 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 756 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 757 } 758 759 /* 760 * This implements agressive mode as found in certain 761 * vendors' AP's. When there is significant high 762 * priority (VI/VO) traffic in the BSS throttle back BE 763 * traffic by using conservative parameters. Otherwise 764 * BE uses agressive params to optimize performance of 765 * legacy/non-QoS traffic. 766 */ 767 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 768 (wme->wme_flags & WME_F_AGGRMODE) == 0) || 769 (ic->ic_opmode != IEEE80211_M_HOSTAP && 770 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 771 (ic->ic_flags & IEEE80211_F_WME) == 0) { 772 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 773 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 774 775 chanp->wmep_aifsn = bssp->wmep_aifsn = 776 phyParam[ic->ic_curmode].aifsn; 777 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 778 phyParam[ic->ic_curmode].logcwmin; 779 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 780 phyParam[ic->ic_curmode].logcwmax; 781 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 782 (ic->ic_caps & IEEE80211_C_BURST) ? 783 phyParam[ic->ic_curmode].txopLimit : 0; 784 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 785 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 786 "log2(cwmax) %u txpoLimit %u]\n", __func__ 787 , ieee80211_wme_acnames[WME_AC_BE] 788 , chanp->wmep_acm 789 , chanp->wmep_aifsn 790 , chanp->wmep_logcwmin 791 , chanp->wmep_logcwmax 792 , chanp->wmep_txopLimit 793 ); 794 } 795 796 #ifndef IEEE80211_NO_HOSTAP 797 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 798 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) == 0) { 799 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = { 800 3, /* IEEE80211_MODE_AUTO */ 801 3, /* IEEE80211_MODE_11A */ 802 4, /* IEEE80211_MODE_11B */ 803 3, /* IEEE80211_MODE_11G */ 804 4, /* IEEE80211_MODE_FH */ 805 3, /* IEEE80211_MODE_TURBO_A */ 806 3, /* IEEE80211_MODE_TURBO_G */ 807 }; 808 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 809 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 810 811 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 812 logCwMin[ic->ic_curmode]; 813 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 814 "%s: %s log2(cwmin) %u\n", __func__ 815 , ieee80211_wme_acnames[WME_AC_BE] 816 , chanp->wmep_logcwmin 817 ); 818 } 819 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 820 /* 821 * Arrange for a beacon update and bump the parameter 822 * set number so associated stations load the new values. 823 */ 824 wme->wme_bssChanParams.cap_info = 825 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 826 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 827 } 828 #endif /* !IEEE80211_NO_HOSTAP */ 829 830 wme->wme_update(ic); 831 832 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 833 "%s: WME params updated, cap_info 0x%x\n", __func__, 834 ic->ic_opmode == IEEE80211_M_STA ? 835 wme->wme_wmeChanParams.cap_info : 836 wme->wme_bssChanParams.cap_info); 837 } 838 839 void 840 ieee80211_wme_updateparams(struct ieee80211com *ic) 841 { 842 843 if (ic->ic_caps & IEEE80211_C_WME) { 844 IEEE80211_BEACON_LOCK(ic); 845 ieee80211_wme_updateparams_locked(ic); 846 IEEE80211_BEACON_UNLOCK(ic); 847 } 848 } 849 850 #ifndef IEEE80211_NO_HOSTAP 851 static void 852 sta_disassoc(void *arg, struct ieee80211_node *ni) 853 { 854 struct ieee80211com *ic = arg; 855 856 if (ni->ni_associd != 0) { 857 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 858 IEEE80211_REASON_ASSOC_LEAVE); 859 ieee80211_node_leave(ic, ni); 860 } 861 } 862 #endif /* !IEEE80211_NO_HOSTAP */ 863 864 void 865 ieee80211_beacon_miss(struct ieee80211com *ic) 866 { 867 868 if (ic->ic_flags & IEEE80211_F_SCAN) { 869 /* XXX check ic_curchan != ic_bsschan? */ 870 return; 871 } 872 IEEE80211_DPRINTF(ic, 873 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 874 "%s\n", "beacon miss"); 875 876 /* 877 * Our handling is only meaningful for stations that are 878 * associated; any other conditions else will be handled 879 * through different means (e.g. the tx timeout on mgt frames). 880 */ 881 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN) 882 return; 883 884 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) { 885 /* 886 * Send a directed probe req before falling back to a scan; 887 * if we receive a response ic_bmiss_count will be reset. 888 * Some cards mistakenly report beacon miss so this avoids 889 * the expensive scan if the ap is still there. 890 */ 891 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr, 892 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid, 893 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen, 894 ic->ic_opt_ie, ic->ic_opt_ie_len); 895 return; 896 } 897 ic->ic_bmiss_count = 0; 898 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 899 } 900 901 #ifndef IEEE80211_NO_HOSTAP 902 static void 903 sta_deauth(void *arg, struct ieee80211_node *ni) 904 { 905 struct ieee80211com *ic = arg; 906 907 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 908 IEEE80211_REASON_ASSOC_LEAVE); 909 } 910 #endif /* !IEEE80211_NO_HOSTAP */ 911 912 static int 913 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 914 { 915 struct ifnet *ifp = ic->ic_ifp; 916 struct ieee80211_node *ni; 917 enum ieee80211_state ostate; 918 919 ostate = ic->ic_state; 920 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 921 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 922 ic->ic_state = nstate; /* state transition */ 923 ni = ic->ic_bss; /* NB: no reference held */ 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 #ifndef IEEE80211_NO_HOSTAP 939 ieee80211_iterate_nodes(&ic->ic_sta, 940 sta_disassoc, ic); 941 #endif /* !IEEE80211_NO_HOSTAP */ 942 break; 943 default: 944 break; 945 } 946 goto reset; 947 case IEEE80211_S_ASSOC: 948 switch (ic->ic_opmode) { 949 case IEEE80211_M_STA: 950 IEEE80211_SEND_MGMT(ic, ni, 951 IEEE80211_FC0_SUBTYPE_DEAUTH, 952 IEEE80211_REASON_AUTH_LEAVE); 953 break; 954 case IEEE80211_M_HOSTAP: 955 #ifndef IEEE80211_NO_HOSTAP 956 ieee80211_iterate_nodes(&ic->ic_sta, 957 sta_deauth, ic); 958 #endif /* !IEEE80211_NO_HOSTAP */ 959 break; 960 default: 961 break; 962 } 963 goto reset; 964 case IEEE80211_S_SCAN: 965 ieee80211_cancel_scan(ic); 966 goto reset; 967 case IEEE80211_S_AUTH: 968 reset: 969 ic->ic_mgt_timer = 0; 970 ieee80211_drain_ifq(&ic->ic_mgtq); 971 ieee80211_reset_bss(ic); 972 break; 973 } 974 if (ic->ic_auth->ia_detach != NULL) 975 ic->ic_auth->ia_detach(ic); 976 break; 977 case IEEE80211_S_SCAN: 978 switch (ostate) { 979 case IEEE80211_S_INIT: 980 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 981 ic->ic_opmode == IEEE80211_M_IBSS || 982 ic->ic_opmode == IEEE80211_M_AHDEMO) && 983 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 984 /* 985 * AP operation and we already have a channel; 986 * bypass the scan and startup immediately. 987 */ 988 ieee80211_create_ibss(ic, ic->ic_des_chan); 989 } else { 990 ieee80211_begin_scan(ic, arg); 991 } 992 break; 993 case IEEE80211_S_SCAN: 994 /* 995 * Scan next. If doing an active scan probe 996 * for the requested ap (if any). 997 */ 998 if (ic->ic_flags & IEEE80211_F_ASCAN) 999 ieee80211_probe_curchan(ic, 0); 1000 break; 1001 case IEEE80211_S_RUN: 1002 /* beacon miss */ 1003 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 1004 "no recent beacons from %s; rescanning\n", 1005 ether_sprintf(ic->ic_bss->ni_bssid)); 1006 ieee80211_sta_leave(ic, ni); 1007 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 1008 /* FALLTHRU */ 1009 case IEEE80211_S_AUTH: 1010 case IEEE80211_S_ASSOC: 1011 /* timeout restart scan */ 1012 ni = ieee80211_find_node(&ic->ic_scan, 1013 ic->ic_bss->ni_macaddr); 1014 if (ni != NULL) { 1015 ni->ni_fails++; 1016 ieee80211_unref_node(&ni); 1017 } 1018 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 1019 ieee80211_begin_scan(ic, arg); 1020 break; 1021 } 1022 break; 1023 case IEEE80211_S_AUTH: 1024 switch (ostate) { 1025 case IEEE80211_S_INIT: 1026 case IEEE80211_S_SCAN: 1027 IEEE80211_SEND_MGMT(ic, ni, 1028 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1029 break; 1030 case IEEE80211_S_AUTH: 1031 case IEEE80211_S_ASSOC: 1032 switch (arg) { 1033 case IEEE80211_FC0_SUBTYPE_AUTH: 1034 /* ??? */ 1035 IEEE80211_SEND_MGMT(ic, ni, 1036 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1037 break; 1038 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1039 /* ignore and retry scan on timeout */ 1040 break; 1041 } 1042 break; 1043 case IEEE80211_S_RUN: 1044 switch (arg) { 1045 case IEEE80211_FC0_SUBTYPE_AUTH: 1046 IEEE80211_SEND_MGMT(ic, ni, 1047 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1048 ic->ic_state = ostate; /* stay RUN */ 1049 break; 1050 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1051 ieee80211_sta_leave(ic, ni); 1052 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1053 /* try to reauth */ 1054 IEEE80211_SEND_MGMT(ic, ni, 1055 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1056 } 1057 break; 1058 } 1059 break; 1060 } 1061 break; 1062 case IEEE80211_S_ASSOC: 1063 switch (ostate) { 1064 case IEEE80211_S_INIT: 1065 case IEEE80211_S_SCAN: 1066 case IEEE80211_S_ASSOC: 1067 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1068 "%s: invalid transition\n", __func__); 1069 break; 1070 case IEEE80211_S_AUTH: 1071 IEEE80211_SEND_MGMT(ic, ni, 1072 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1073 break; 1074 case IEEE80211_S_RUN: 1075 ieee80211_sta_leave(ic, ni); 1076 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1077 IEEE80211_SEND_MGMT(ic, ni, 1078 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1079 } 1080 break; 1081 } 1082 break; 1083 case IEEE80211_S_RUN: 1084 if (ic->ic_flags & IEEE80211_F_WPA) { 1085 /* XXX validate prerequisites */ 1086 } 1087 switch (ostate) { 1088 case IEEE80211_S_INIT: 1089 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1090 break; 1091 /* fall thru... */ 1092 case IEEE80211_S_AUTH: 1093 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1094 "%s: invalid transition\n", __func__); 1095 /* fall thru... */ 1096 case IEEE80211_S_RUN: 1097 break; 1098 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1099 case IEEE80211_S_ASSOC: /* infra mode */ 1100 IASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1101 ("%s: bogus xmit rate %u setup\n", __func__, 1102 ni->ni_txrate)); 1103 #ifdef IEEE80211_DEBUG 1104 if (ieee80211_msg_debug(ic)) { 1105 if (ic->ic_opmode == IEEE80211_M_STA) 1106 if_printf(ifp, "associated "); 1107 else 1108 if_printf(ifp, "synchronized "); 1109 printf("with %s ssid ", 1110 ether_sprintf(ni->ni_bssid)); 1111 ieee80211_print_essid(ic->ic_bss->ni_essid, 1112 ni->ni_esslen); 1113 printf(" channel %d start %uMb\n", 1114 ieee80211_chan2ieee(ic, ic->ic_curchan), 1115 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1116 } 1117 #endif 1118 ic->ic_mgt_timer = 0; 1119 if (ic->ic_opmode == IEEE80211_M_STA) 1120 ieee80211_notify_node_join(ic, ni, 1121 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1122 (*ifp->if_start)(ifp); /* XXX not authorized yet */ 1123 break; 1124 } 1125 /* 1126 * Start/stop the authenticator when operating as an 1127 * AP. We delay until here to allow configuration to 1128 * happen out of order. 1129 */ 1130 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1131 ic->ic_auth->ia_attach != NULL) { 1132 /* XXX check failure */ 1133 ic->ic_auth->ia_attach(ic); 1134 } else if (ic->ic_auth->ia_detach != NULL) { 1135 ic->ic_auth->ia_detach(ic); 1136 } 1137 /* 1138 * When 802.1x is not in use mark the port authorized 1139 * at this point so traffic can flow. 1140 */ 1141 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1142 ieee80211_node_authorize(ni); 1143 /* 1144 * Enable inactivity processing. 1145 * XXX 1146 */ 1147 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1148 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1149 break; 1150 } 1151 return 0; 1152 } 1153