ieee80211_proto.c revision 1.21
1 /* $NetBSD: ieee80211_proto.c,v 1.21 2005/07/26 22:52:48 dyoung 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 1.17 2005/07/04 01:29:41 sam Exp $"); 37 #endif 38 #ifdef __NetBSD__ 39 __KERNEL_RCSID(0, "$NetBSD: ieee80211_proto.c,v 1.21 2005/07/26 22:52:48 dyoung 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 #ifdef notdef 120 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 121 #else 122 ic->ic_rtsthreshold = IEEE80211_RTS_MAX; 123 #endif 124 ic->ic_fragthreshold = 2346; /* XXX not used yet */ 125 ic->ic_fixed_rate = -1; /* no fixed rate */ 126 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 127 ic->ic_roaming = IEEE80211_ROAMING_AUTO; 128 129 ic->ic_wme.wme_hipri_switch_hysteresis = 130 AGGRESSIVE_MODE_SWITCH_HYSTERESIS; 131 132 /* protocol state change handler */ 133 ic->ic_newstate = ieee80211_newstate; 134 135 /* initialize management frame handlers */ 136 ic->ic_recv_mgmt = ieee80211_recv_mgmt; 137 ic->ic_send_mgmt = ieee80211_send_mgmt; 138 } 139 140 void 141 ieee80211_proto_detach(struct ieee80211com *ic) 142 { 143 144 /* 145 * This should not be needed as we detach when reseting 146 * the state but be conservative here since the 147 * authenticator may do things like spawn kernel threads. 148 */ 149 if (ic->ic_auth->ia_detach) 150 ic->ic_auth->ia_detach(ic); 151 152 IF_PURGE(&ic->ic_mgtq); 153 154 /* 155 * Detach any ACL'ator. 156 */ 157 if (ic->ic_acl != NULL) 158 ic->ic_acl->iac_detach(ic); 159 } 160 161 /* 162 * Simple-minded authenticator module support. 163 */ 164 165 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1) 166 /* XXX well-known names */ 167 static const char *auth_modnames[IEEE80211_AUTH_MAX] = { 168 "wlan_internal", /* IEEE80211_AUTH_NONE */ 169 "wlan_internal", /* IEEE80211_AUTH_OPEN */ 170 "wlan_internal", /* IEEE80211_AUTH_SHARED */ 171 "wlan_xauth", /* IEEE80211_AUTH_8021X */ 172 "wlan_internal", /* IEEE80211_AUTH_AUTO */ 173 "wlan_xauth", /* IEEE80211_AUTH_WPA */ 174 }; 175 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX]; 176 177 static const struct ieee80211_authenticator auth_internal = { 178 .ia_name = "wlan_internal", 179 .ia_attach = NULL, 180 .ia_detach = NULL, 181 .ia_node_join = NULL, 182 .ia_node_leave = NULL, 183 }; 184 185 /* 186 * Setup internal authenticators once; they are never unregistered. 187 */ 188 static void 189 ieee80211_auth_setup(void) 190 { 191 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal); 192 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal); 193 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal); 194 } 195 196 const struct ieee80211_authenticator * 197 ieee80211_authenticator_get(int auth) 198 { 199 static int initialized = 0; 200 if (!initialized) { 201 ieee80211_auth_setup(); 202 initialized = 1; 203 } 204 if (auth >= IEEE80211_AUTH_MAX) 205 return NULL; 206 if (authenticators[auth] == NULL) 207 ieee80211_load_module(auth_modnames[auth]); 208 return authenticators[auth]; 209 } 210 211 void 212 ieee80211_authenticator_register(int type, 213 const struct ieee80211_authenticator *auth) 214 { 215 if (type >= IEEE80211_AUTH_MAX) 216 return; 217 authenticators[type] = auth; 218 } 219 220 void 221 ieee80211_authenticator_unregister(int type) 222 { 223 224 if (type >= IEEE80211_AUTH_MAX) 225 return; 226 authenticators[type] = NULL; 227 } 228 229 /* 230 * Very simple-minded ACL module support. 231 */ 232 /* XXX just one for now */ 233 static const struct ieee80211_aclator *acl = NULL; 234 235 void 236 ieee80211_aclator_register(const struct ieee80211_aclator *iac) 237 { 238 printf("wlan: %s acl policy registered\n", iac->iac_name); 239 acl = iac; 240 } 241 242 void 243 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac) 244 { 245 if (acl == iac) 246 acl = NULL; 247 printf("wlan: %s acl policy unregistered\n", iac->iac_name); 248 } 249 250 const struct ieee80211_aclator * 251 ieee80211_aclator_get(const char *name) 252 { 253 if (acl == NULL) 254 ieee80211_load_module("wlan_acl"); 255 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL; 256 } 257 258 void 259 ieee80211_print_essid(const u_int8_t *essid, int len) 260 { 261 const u_int8_t *p; 262 int i; 263 264 if (len > IEEE80211_NWID_LEN) 265 len = IEEE80211_NWID_LEN; 266 /* determine printable or not */ 267 for (i = 0, p = essid; i < len; i++, p++) { 268 if (*p < ' ' || *p > 0x7e) 269 break; 270 } 271 if (i == len) { 272 printf("\""); 273 for (i = 0, p = essid; i < len; i++, p++) 274 printf("%c", *p); 275 printf("\""); 276 } else { 277 printf("0x"); 278 for (i = 0, p = essid; i < len; i++, p++) 279 printf("%02x", *p); 280 } 281 } 282 283 void 284 ieee80211_dump_pkt(const u_int8_t *buf, int len, int rate, int rssi) 285 { 286 const struct ieee80211_frame *wh; 287 int i; 288 289 wh = (const struct ieee80211_frame *)buf; 290 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 291 case IEEE80211_FC1_DIR_NODS: 292 printf("NODS %s", ether_sprintf(wh->i_addr2)); 293 printf("->%s", ether_sprintf(wh->i_addr1)); 294 printf("(%s)", ether_sprintf(wh->i_addr3)); 295 break; 296 case IEEE80211_FC1_DIR_TODS: 297 printf("TODS %s", ether_sprintf(wh->i_addr2)); 298 printf("->%s", ether_sprintf(wh->i_addr3)); 299 printf("(%s)", ether_sprintf(wh->i_addr1)); 300 break; 301 case IEEE80211_FC1_DIR_FROMDS: 302 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 303 printf("->%s", ether_sprintf(wh->i_addr1)); 304 printf("(%s)", ether_sprintf(wh->i_addr2)); 305 break; 306 case IEEE80211_FC1_DIR_DSTODS: 307 printf("DSDS %s", ether_sprintf((const u_int8_t *)&wh[1])); 308 printf("->%s", ether_sprintf(wh->i_addr3)); 309 printf("(%s", ether_sprintf(wh->i_addr2)); 310 printf("->%s)", ether_sprintf(wh->i_addr1)); 311 break; 312 } 313 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 314 case IEEE80211_FC0_TYPE_DATA: 315 printf(" data"); 316 break; 317 case IEEE80211_FC0_TYPE_MGT: 318 printf(" %s", ieee80211_mgt_subtype_name[ 319 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 320 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 321 break; 322 default: 323 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 324 break; 325 } 326 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 327 printf(" WEP [IV"); 328 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) 329 printf(" %.02x", buf[sizeof(*wh)+i]); 330 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6); 331 } 332 if (rate >= 0) 333 printf(" %dM", rate / 2); 334 if (rssi >= 0) 335 printf(" +%d", rssi); 336 printf("\n"); 337 if (len > 0) { 338 for (i = 0; i < len; i++) { 339 if ((i & 1) == 0) 340 printf(" "); 341 printf("%02x", buf[i]); 342 } 343 printf("\n"); 344 } 345 } 346 347 int 348 ieee80211_fix_rate(struct ieee80211com *ic, struct ieee80211_node *ni, int flags) 349 { 350 #define RV(v) ((v) & IEEE80211_RATE_VAL) 351 int i, j, ignore, error; 352 int okrate, badrate, fixedrate; 353 struct ieee80211_rateset *srs, *nrs; 354 u_int8_t r; 355 356 /* 357 * If the fixed rate check was requested but no 358 * fixed has been defined then just remove it. 359 */ 360 if ((flags & IEEE80211_F_DOFRATE) && ic->ic_fixed_rate < 0) 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, struct ieee80211_rateset *rs) 502 { 503 #define N(a) (sizeof(a) / sizeof(a[0])) 504 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 }; 505 int i, j; 506 507 if (rs->rs_nrates < N(rates)) 508 return 0; 509 for (i = 0; i < N(rates); i++) { 510 for (j = 0; j < rs->rs_nrates; j++) { 511 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL; 512 if (rates[i] == r) 513 goto next; 514 if (r > rates[i]) 515 return 0; 516 } 517 return 0; 518 next: 519 ; 520 } 521 return 1; 522 #undef N 523 } 524 525 /* 526 * Mark the basic rates for the 11g rate table based on the 527 * operating mode. For real 11g we mark all the 11b rates 528 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 529 * 11b rates. There's also a pseudo 11a-mode used to mark only 530 * the basic OFDM rates. 531 */ 532 void 533 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode) 534 { 535 static const struct ieee80211_rateset basic[] = { 536 { 0 }, /* IEEE80211_MODE_AUTO */ 537 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 538 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */ 539 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */ 540 { 0 }, /* IEEE80211_MODE_FH */ 541 /* IEEE80211_MODE_PUREG (not yet) */ 542 { 7, { 2, 4, 11, 22, 12, 24, 48 } }, 543 }; 544 int i, j; 545 546 for (i = 0; i < rs->rs_nrates; i++) { 547 rs->rs_rates[i] &= IEEE80211_RATE_VAL; 548 for (j = 0; j < basic[mode].rs_nrates; j++) 549 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) { 550 rs->rs_rates[i] |= IEEE80211_RATE_BASIC; 551 break; 552 } 553 } 554 } 555 556 /* 557 * WME protocol support. The following parameters come from the spec. 558 */ 559 typedef struct phyParamType { 560 u_int8_t aifsn; 561 u_int8_t logcwmin; 562 u_int8_t logcwmax; 563 u_int16_t txopLimit; 564 u_int8_t acm; 565 } paramType; 566 567 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = { 568 { 3, 4, 6 }, /* IEEE80211_MODE_AUTO */ 569 { 3, 4, 6 }, /* IEEE80211_MODE_11A */ 570 { 3, 5, 7 }, /* IEEE80211_MODE_11B */ 571 { 3, 4, 6 }, /* IEEE80211_MODE_11G */ 572 { 3, 5, 7 }, /* IEEE80211_MODE_FH */ 573 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_A */ 574 { 2, 3, 5 }, /* IEEE80211_MODE_TURBO_G */ 575 }; 576 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = { 577 { 7, 4, 10 }, /* IEEE80211_MODE_AUTO */ 578 { 7, 4, 10 }, /* IEEE80211_MODE_11A */ 579 { 7, 5, 10 }, /* IEEE80211_MODE_11B */ 580 { 7, 4, 10 }, /* IEEE80211_MODE_11G */ 581 { 7, 5, 10 }, /* IEEE80211_MODE_FH */ 582 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 583 { 7, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 584 }; 585 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = { 586 { 1, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 587 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 588 { 1, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 589 { 1, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 590 { 1, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 591 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 592 { 1, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 593 }; 594 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = { 595 { 1, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 596 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 597 { 1, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 598 { 1, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 599 { 1, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 600 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 601 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 602 }; 603 604 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = { 605 { 3, 4, 10 }, /* IEEE80211_MODE_AUTO */ 606 { 3, 4, 10 }, /* IEEE80211_MODE_11A */ 607 { 3, 5, 10 }, /* IEEE80211_MODE_11B */ 608 { 3, 4, 10 }, /* IEEE80211_MODE_11G */ 609 { 3, 5, 10 }, /* IEEE80211_MODE_FH */ 610 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_A */ 611 { 2, 3, 10 }, /* IEEE80211_MODE_TURBO_G */ 612 }; 613 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = { 614 { 2, 3, 4, 94 }, /* IEEE80211_MODE_AUTO */ 615 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11A */ 616 { 2, 4, 5, 188 }, /* IEEE80211_MODE_11B */ 617 { 2, 3, 4, 94 }, /* IEEE80211_MODE_11G */ 618 { 2, 4, 5, 188 }, /* IEEE80211_MODE_FH */ 619 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_A */ 620 { 2, 2, 3, 94 }, /* IEEE80211_MODE_TURBO_G */ 621 }; 622 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = { 623 { 2, 2, 3, 47 }, /* IEEE80211_MODE_AUTO */ 624 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11A */ 625 { 2, 3, 4, 102 }, /* IEEE80211_MODE_11B */ 626 { 2, 2, 3, 47 }, /* IEEE80211_MODE_11G */ 627 { 2, 3, 4, 102 }, /* IEEE80211_MODE_FH */ 628 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_A */ 629 { 1, 2, 2, 47 }, /* IEEE80211_MODE_TURBO_G */ 630 }; 631 632 void 633 ieee80211_wme_initparams(struct ieee80211com *ic) 634 { 635 struct ieee80211_wme_state *wme = &ic->ic_wme; 636 const paramType *pPhyParam, *pBssPhyParam; 637 struct wmeParams *wmep; 638 int i; 639 640 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 641 return; 642 643 for (i = 0; i < WME_NUM_AC; i++) { 644 switch (i) { 645 case WME_AC_BK: 646 pPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 647 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode]; 648 break; 649 case WME_AC_VI: 650 pPhyParam = &phyParamForAC_VI[ic->ic_curmode]; 651 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode]; 652 break; 653 case WME_AC_VO: 654 pPhyParam = &phyParamForAC_VO[ic->ic_curmode]; 655 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode]; 656 break; 657 case WME_AC_BE: 658 default: 659 pPhyParam = &phyParamForAC_BE[ic->ic_curmode]; 660 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode]; 661 break; 662 } 663 664 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 665 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 666 wmep->wmep_acm = pPhyParam->acm; 667 wmep->wmep_aifsn = pPhyParam->aifsn; 668 wmep->wmep_logcwmin = pPhyParam->logcwmin; 669 wmep->wmep_logcwmax = pPhyParam->logcwmax; 670 wmep->wmep_txopLimit = pPhyParam->txopLimit; 671 } else { 672 wmep->wmep_acm = pBssPhyParam->acm; 673 wmep->wmep_aifsn = pBssPhyParam->aifsn; 674 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 675 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 676 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 677 678 } 679 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 680 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u " 681 "log2(cwmax) %u txpoLimit %u]\n", __func__ 682 , ieee80211_wme_acnames[i] 683 , wmep->wmep_acm 684 , wmep->wmep_aifsn 685 , wmep->wmep_logcwmin 686 , wmep->wmep_logcwmax 687 , wmep->wmep_txopLimit 688 ); 689 690 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 691 wmep->wmep_acm = pBssPhyParam->acm; 692 wmep->wmep_aifsn = pBssPhyParam->aifsn; 693 wmep->wmep_logcwmin = pBssPhyParam->logcwmin; 694 wmep->wmep_logcwmax = pBssPhyParam->logcwmax; 695 wmep->wmep_txopLimit = pBssPhyParam->txopLimit; 696 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 697 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u " 698 "log2(cwmax) %u txpoLimit %u]\n", __func__ 699 , ieee80211_wme_acnames[i] 700 , wmep->wmep_acm 701 , wmep->wmep_aifsn 702 , wmep->wmep_logcwmin 703 , wmep->wmep_logcwmax 704 , wmep->wmep_txopLimit 705 ); 706 } 707 /* NB: check ic_bss to avoid NULL deref on initial attach */ 708 if (ic->ic_bss != NULL) { 709 /* 710 * Calculate agressive mode switching threshold based 711 * on beacon interval. This doesn't need locking since 712 * we're only called before entering the RUN state at 713 * which point we start sending beacon frames. 714 */ 715 wme->wme_hipri_switch_thresh = 716 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100; 717 ieee80211_wme_updateparams(ic); 718 } 719 } 720 721 /* 722 * Update WME parameters for ourself and the BSS. 723 */ 724 void 725 ieee80211_wme_updateparams_locked(struct ieee80211com *ic) 726 { 727 static const paramType phyParam[IEEE80211_MODE_MAX] = { 728 { 2, 4, 10, 64 }, /* IEEE80211_MODE_AUTO */ 729 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11A */ 730 { 2, 5, 10, 64 }, /* IEEE80211_MODE_11B */ 731 { 2, 4, 10, 64 }, /* IEEE80211_MODE_11G */ 732 { 2, 5, 10, 64 }, /* IEEE80211_MODE_FH */ 733 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_A */ 734 { 1, 3, 10, 64 }, /* IEEE80211_MODE_TURBO_G */ 735 }; 736 struct ieee80211_wme_state *wme = &ic->ic_wme; 737 const struct wmeParams *wmep; 738 struct wmeParams *chanp, *bssp; 739 int i; 740 741 /* set up the channel access parameters for the physical device */ 742 for (i = 0; i < WME_NUM_AC; i++) { 743 chanp = &wme->wme_chanParams.cap_wmeParams[i]; 744 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i]; 745 chanp->wmep_aifsn = wmep->wmep_aifsn; 746 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 747 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 748 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 749 750 chanp = &wme->wme_bssChanParams.cap_wmeParams[i]; 751 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i]; 752 chanp->wmep_aifsn = wmep->wmep_aifsn; 753 chanp->wmep_logcwmin = wmep->wmep_logcwmin; 754 chanp->wmep_logcwmax = wmep->wmep_logcwmax; 755 chanp->wmep_txopLimit = wmep->wmep_txopLimit; 756 } 757 758 /* 759 * This implements agressive mode as found in certain 760 * vendors' AP's. When there is significant high 761 * priority (VI/VO) traffic in the BSS throttle back BE 762 * traffic by using conservative parameters. Otherwise 763 * BE uses agressive params to optimize performance of 764 * legacy/non-QoS traffic. 765 */ 766 if ((ic->ic_opmode == IEEE80211_M_HOSTAP && 767 (wme->wme_flags & WME_F_AGGRMODE) == 0) || 768 (ic->ic_opmode != IEEE80211_M_HOSTAP && 769 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) || 770 (ic->ic_flags & IEEE80211_F_WME) == 0) { 771 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 772 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 773 774 chanp->wmep_aifsn = bssp->wmep_aifsn = 775 phyParam[ic->ic_curmode].aifsn; 776 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 777 phyParam[ic->ic_curmode].logcwmin; 778 chanp->wmep_logcwmax = bssp->wmep_logcwmax = 779 phyParam[ic->ic_curmode].logcwmax; 780 chanp->wmep_txopLimit = bssp->wmep_txopLimit = 781 (ic->ic_caps & IEEE80211_C_BURST) ? 782 phyParam[ic->ic_curmode].txopLimit : 0; 783 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 784 "%s: %s [acm %u aifsn %u log2(cwmin) %u " 785 "log2(cwmax) %u txpoLimit %u]\n", __func__ 786 , ieee80211_wme_acnames[WME_AC_BE] 787 , chanp->wmep_acm 788 , chanp->wmep_aifsn 789 , chanp->wmep_logcwmin 790 , chanp->wmep_logcwmax 791 , chanp->wmep_txopLimit 792 ); 793 } 794 795 #ifndef IEEE80211_NO_HOSTAP 796 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 797 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) == 0) { 798 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = { 799 3, /* IEEE80211_MODE_AUTO */ 800 3, /* IEEE80211_MODE_11A */ 801 4, /* IEEE80211_MODE_11B */ 802 3, /* IEEE80211_MODE_11G */ 803 4, /* IEEE80211_MODE_FH */ 804 3, /* IEEE80211_MODE_TURBO_A */ 805 3, /* IEEE80211_MODE_TURBO_G */ 806 }; 807 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE]; 808 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE]; 809 810 chanp->wmep_logcwmin = bssp->wmep_logcwmin = 811 logCwMin[ic->ic_curmode]; 812 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 813 "%s: %s log2(cwmin) %u\n", __func__ 814 , ieee80211_wme_acnames[WME_AC_BE] 815 , chanp->wmep_logcwmin 816 ); 817 } 818 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */ 819 /* 820 * Arrange for a beacon update and bump the parameter 821 * set number so associated stations load the new values. 822 */ 823 wme->wme_bssChanParams.cap_info = 824 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT; 825 ic->ic_flags |= IEEE80211_F_WMEUPDATE; 826 } 827 #endif /* !IEEE80211_NO_HOSTAP */ 828 829 wme->wme_update(ic); 830 831 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME, 832 "%s: WME params updated, cap_info 0x%x\n", __func__, 833 ic->ic_opmode == IEEE80211_M_STA ? 834 wme->wme_wmeChanParams.cap_info : 835 wme->wme_bssChanParams.cap_info); 836 } 837 838 void 839 ieee80211_wme_updateparams(struct ieee80211com *ic) 840 { 841 842 if (ic->ic_caps & IEEE80211_C_WME) { 843 IEEE80211_BEACON_LOCK(ic); 844 ieee80211_wme_updateparams_locked(ic); 845 IEEE80211_BEACON_UNLOCK(ic); 846 } 847 } 848 849 static void 850 sta_disassoc(void *arg, struct ieee80211_node *ni) 851 { 852 struct ieee80211com *ic = arg; 853 854 if (ni->ni_associd != 0) { 855 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC, 856 IEEE80211_REASON_ASSOC_LEAVE); 857 ieee80211_node_leave(ic, ni); 858 } 859 } 860 861 static void 862 sta_deauth(void *arg, struct ieee80211_node *ni) 863 { 864 struct ieee80211com *ic = arg; 865 866 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH, 867 IEEE80211_REASON_ASSOC_LEAVE); 868 } 869 870 static int 871 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 872 { 873 struct ifnet *ifp = ic->ic_ifp; 874 struct ieee80211_node *ni; 875 enum ieee80211_state ostate; 876 877 ostate = ic->ic_state; 878 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__, 879 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 880 ic->ic_state = nstate; /* state transition */ 881 ni = ic->ic_bss; /* NB: no reference held */ 882 switch (nstate) { 883 case IEEE80211_S_INIT: 884 switch (ostate) { 885 case IEEE80211_S_INIT: 886 break; 887 case IEEE80211_S_RUN: 888 switch (ic->ic_opmode) { 889 case IEEE80211_M_STA: 890 IEEE80211_SEND_MGMT(ic, ni, 891 IEEE80211_FC0_SUBTYPE_DISASSOC, 892 IEEE80211_REASON_ASSOC_LEAVE); 893 ieee80211_sta_leave(ic, ni); 894 break; 895 case IEEE80211_M_HOSTAP: 896 #ifndef IEEE80211_NO_HOSTAP 897 ieee80211_iterate_nodes(&ic->ic_sta, 898 sta_disassoc, ic); 899 #endif /* !IEEE80211_NO_HOSTAP */ 900 break; 901 default: 902 break; 903 } 904 goto reset; 905 case IEEE80211_S_ASSOC: 906 switch (ic->ic_opmode) { 907 case IEEE80211_M_STA: 908 IEEE80211_SEND_MGMT(ic, ni, 909 IEEE80211_FC0_SUBTYPE_DEAUTH, 910 IEEE80211_REASON_AUTH_LEAVE); 911 break; 912 case IEEE80211_M_HOSTAP: 913 #ifndef IEEE80211_NO_HOSTAP 914 ieee80211_iterate_nodes(&ic->ic_sta, 915 sta_deauth, ic); 916 #endif /* !IEEE80211_NO_HOSTAP */ 917 break; 918 default: 919 break; 920 } 921 goto reset; 922 case IEEE80211_S_SCAN: 923 ieee80211_cancel_scan(ic); 924 goto reset; 925 case IEEE80211_S_AUTH: 926 reset: 927 ic->ic_mgt_timer = 0; 928 IF_PURGE(&ic->ic_mgtq); 929 ieee80211_reset_bss(ic); 930 break; 931 } 932 if (ic->ic_auth->ia_detach != NULL) 933 ic->ic_auth->ia_detach(ic); 934 break; 935 case IEEE80211_S_SCAN: 936 switch (ostate) { 937 case IEEE80211_S_INIT: 938 if ((ic->ic_opmode == IEEE80211_M_HOSTAP || 939 ic->ic_opmode == IEEE80211_M_IBSS || 940 ic->ic_opmode == IEEE80211_M_AHDEMO) && 941 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 942 /* 943 * AP operation and we already have a channel; 944 * bypass the scan and startup immediately. 945 */ 946 ieee80211_create_ibss(ic, ic->ic_des_chan); 947 } else { 948 ieee80211_begin_scan(ic, arg); 949 } 950 break; 951 case IEEE80211_S_SCAN: 952 /* 953 * Scan next. If doing an active scan and the 954 * channel is not marked passive-only then send 955 * a probe request. Otherwise just listen for 956 * beacons on the channel. 957 */ 958 if ((ic->ic_flags & IEEE80211_F_ASCAN) && 959 (ni->ni_chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) { 960 IEEE80211_SEND_MGMT(ic, ni, 961 IEEE80211_FC0_SUBTYPE_PROBE_REQ, 0); 962 } 963 break; 964 case IEEE80211_S_RUN: 965 /* beacon miss */ 966 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, 967 "no recent beacons from %s; rescanning\n", 968 ether_sprintf(ic->ic_bss->ni_bssid)); 969 ieee80211_sta_leave(ic, ni); 970 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */ 971 /* FALLTHRU */ 972 case IEEE80211_S_AUTH: 973 case IEEE80211_S_ASSOC: 974 /* timeout restart scan */ 975 ni = ieee80211_find_node(&ic->ic_scan, 976 ic->ic_bss->ni_macaddr); 977 if (ni != NULL) { 978 ni->ni_fails++; 979 ieee80211_unref_node(&ni); 980 } 981 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) 982 ieee80211_begin_scan(ic, arg); 983 break; 984 } 985 break; 986 case IEEE80211_S_AUTH: 987 switch (ostate) { 988 case IEEE80211_S_INIT: 989 case IEEE80211_S_SCAN: 990 IEEE80211_SEND_MGMT(ic, ni, 991 IEEE80211_FC0_SUBTYPE_AUTH, 1); 992 break; 993 case IEEE80211_S_AUTH: 994 case IEEE80211_S_ASSOC: 995 switch (arg) { 996 case IEEE80211_FC0_SUBTYPE_AUTH: 997 /* ??? */ 998 IEEE80211_SEND_MGMT(ic, ni, 999 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1000 break; 1001 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1002 /* ignore and retry scan on timeout */ 1003 break; 1004 } 1005 break; 1006 case IEEE80211_S_RUN: 1007 switch (arg) { 1008 case IEEE80211_FC0_SUBTYPE_AUTH: 1009 IEEE80211_SEND_MGMT(ic, ni, 1010 IEEE80211_FC0_SUBTYPE_AUTH, 2); 1011 ic->ic_state = ostate; /* stay RUN */ 1012 break; 1013 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1014 ieee80211_sta_leave(ic, ni); 1015 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1016 /* try to reauth */ 1017 IEEE80211_SEND_MGMT(ic, ni, 1018 IEEE80211_FC0_SUBTYPE_AUTH, 1); 1019 } 1020 break; 1021 } 1022 break; 1023 } 1024 break; 1025 case IEEE80211_S_ASSOC: 1026 switch (ostate) { 1027 case IEEE80211_S_INIT: 1028 case IEEE80211_S_SCAN: 1029 case IEEE80211_S_ASSOC: 1030 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1031 "%s: invalid transition\n", __func__); 1032 break; 1033 case IEEE80211_S_AUTH: 1034 IEEE80211_SEND_MGMT(ic, ni, 1035 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 1036 break; 1037 case IEEE80211_S_RUN: 1038 ieee80211_sta_leave(ic, ni); 1039 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) { 1040 IEEE80211_SEND_MGMT(ic, ni, 1041 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 1042 } 1043 break; 1044 } 1045 break; 1046 case IEEE80211_S_RUN: 1047 if (ic->ic_flags & IEEE80211_F_WPA) { 1048 /* XXX validate prerequisites */ 1049 } 1050 switch (ostate) { 1051 case IEEE80211_S_INIT: 1052 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1053 break; 1054 /* fall thru... */ 1055 case IEEE80211_S_AUTH: 1056 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 1057 "%s: invalid transition\n", __func__); 1058 /* fall thru... */ 1059 case IEEE80211_S_RUN: 1060 break; 1061 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 1062 case IEEE80211_S_ASSOC: /* infra mode */ 1063 IASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates, 1064 ("%s: bogus xmit rate %u setup\n", __func__, 1065 ni->ni_txrate)); 1066 #ifdef IEEE80211_DEBUG 1067 if (ieee80211_msg_debug(ic)) { 1068 if (ic->ic_opmode == IEEE80211_M_STA) 1069 if_printf(ifp, "associated "); 1070 else 1071 if_printf(ifp, "synchronized "); 1072 printf("with %s ssid ", 1073 ether_sprintf(ni->ni_bssid)); 1074 ieee80211_print_essid(ic->ic_bss->ni_essid, 1075 ni->ni_esslen); 1076 printf(" channel %d start %uMb\n", 1077 ieee80211_chan2ieee(ic, ni->ni_chan), 1078 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate])); 1079 } 1080 #endif 1081 ic->ic_mgt_timer = 0; 1082 if (ic->ic_opmode == IEEE80211_M_STA) 1083 ieee80211_notify_node_join(ic, ni, 1084 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1085 (*ifp->if_start)(ifp); /* XXX not authorized yet */ 1086 break; 1087 } 1088 /* 1089 * Start/stop the authenticator when operating as an 1090 * AP. We delay until here to allow configuration to 1091 * happen out of order. 1092 */ 1093 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */ 1094 ic->ic_auth->ia_attach != NULL) { 1095 /* XXX check failure */ 1096 ic->ic_auth->ia_attach(ic); 1097 } else if (ic->ic_auth->ia_detach != NULL) { 1098 ic->ic_auth->ia_detach(ic); 1099 } 1100 /* 1101 * When 802.1x is not in use mark the port authorized 1102 * at this point so traffic can flow. 1103 */ 1104 if (ni->ni_authmode != IEEE80211_AUTH_8021X) 1105 ieee80211_node_authorize(ic, ni); 1106 /* 1107 * Enable inactivity processing. 1108 * XXX 1109 */ 1110 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 1111 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 1112 break; 1113 } 1114 return 0; 1115 } 1116
Indexes created Tue Sep 23 02:09:52 GMT 2025