1 /* 2 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 2001 Atsushi Onoe 8 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * Alternatively, this software may be distributed under the terms of the 23 * GNU General Public License ("GPL") version 2 as published by the Free 24 * Software Foundation. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #pragma ident "%Z%%M% %I% %E% SMI" 39 40 /* 41 * IEEE 802.11 protocol support 42 */ 43 44 #include "net80211_impl.h" 45 46 const char *ieee80211_mgt_subtype_name[] = { 47 "assoc_req", "assoc_resp", "reassoc_req", "reassoc_resp", 48 "probe_req", "probe_resp", "reserved#6", "reserved#7", 49 "beacon", "atim", "disassoc", "auth", 50 "deauth", "reserved#13", "reserved#14", "reserved#15" 51 }; 52 const char *ieee80211_ctl_subtype_name[] = { 53 "reserved#0", "reserved#1", "reserved#2", "reserved#3", 54 "reserved#3", "reserved#5", "reserved#6", "reserved#7", 55 "reserved#8", "reserved#9", "ps_poll", "rts", 56 "cts", "ack", "cf_end", "cf_end_ack" 57 }; 58 const char *ieee80211_state_name[IEEE80211_S_MAX] = { 59 "INIT", /* IEEE80211_S_INIT */ 60 "SCAN", /* IEEE80211_S_SCAN */ 61 "AUTH", /* IEEE80211_S_AUTH */ 62 "ASSOC", /* IEEE80211_S_ASSOC */ 63 "RUN" /* IEEE80211_S_RUN */ 64 }; 65 66 static int ieee80211_newstate(ieee80211com_t *, enum ieee80211_state, int); 67 68 /* 69 * Initialize the interface softc, ic, with protocol management 70 * related data structures and functions. 71 */ 72 void 73 ieee80211_proto_attach(ieee80211com_t *ic) 74 { 75 struct ieee80211_impl *im = ic->ic_private; 76 77 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT; 78 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT; 79 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 80 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT; 81 ic->ic_protmode = IEEE80211_PROT_CTSONLY; 82 im->im_bmiss_max = IEEE80211_BMISS_MAX; 83 84 /* protocol state change handler */ 85 ic->ic_newstate = ieee80211_newstate; 86 87 /* initialize management frame handlers */ 88 ic->ic_recv_mgmt = ieee80211_recv_mgmt; 89 ic->ic_send_mgmt = ieee80211_send_mgmt; 90 } 91 92 /* 93 * Print a 802.11 frame header 94 */ 95 void 96 ieee80211_dump_pkt(const uint8_t *buf, int32_t len, int32_t rate, int32_t rssi) 97 { 98 struct ieee80211_frame *wh; 99 int8_t buf1[100]; 100 int8_t buf2[25]; 101 int i; 102 103 bzero(buf1, sizeof (buf1)); 104 bzero(buf2, sizeof (buf2)); 105 wh = (struct ieee80211_frame *)buf; 106 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 107 case IEEE80211_FC1_DIR_NODS: 108 (void) snprintf(buf2, sizeof (buf2), "NODS %s", 109 ieee80211_macaddr_sprintf(wh->i_addr2)); 110 (void) strncat(buf1, buf2, sizeof (buf2)); 111 (void) snprintf(buf2, sizeof (buf2), "->%s", 112 ieee80211_macaddr_sprintf(wh->i_addr1)); 113 (void) strncat(buf1, buf2, sizeof (buf2)); 114 (void) snprintf(buf2, sizeof (buf2), "(%s)", 115 ieee80211_macaddr_sprintf(wh->i_addr3)); 116 (void) strncat(buf1, buf2, sizeof (buf2)); 117 break; 118 case IEEE80211_FC1_DIR_TODS: 119 (void) snprintf(buf2, sizeof (buf2), "TODS %s", 120 ieee80211_macaddr_sprintf(wh->i_addr2)); 121 (void) strncat(buf1, buf2, sizeof (buf2)); 122 (void) snprintf(buf2, sizeof (buf2), "->%s", 123 ieee80211_macaddr_sprintf(wh->i_addr3)); 124 (void) strncat(buf1, buf2, sizeof (buf2)); 125 (void) snprintf(buf2, sizeof (buf2), "(%s)", 126 ieee80211_macaddr_sprintf(wh->i_addr1)); 127 (void) strncat(buf1, buf2, sizeof (buf2)); 128 break; 129 case IEEE80211_FC1_DIR_FROMDS: 130 (void) snprintf(buf2, sizeof (buf2), "FRDS %s", 131 ieee80211_macaddr_sprintf(wh->i_addr3)); 132 (void) strncat(buf1, buf2, sizeof (buf2)); 133 (void) snprintf(buf2, sizeof (buf2), "->%s", 134 ieee80211_macaddr_sprintf(wh->i_addr1)); 135 (void) strncat(buf1, buf2, sizeof (buf2)); 136 (void) snprintf(buf2, sizeof (buf2), "(%s)", 137 ieee80211_macaddr_sprintf(wh->i_addr2)); 138 (void) strncat(buf1, buf2, sizeof (buf2)); 139 break; 140 case IEEE80211_FC1_DIR_DSTODS: 141 (void) snprintf(buf2, sizeof (buf2), "DSDS %s", 142 ieee80211_macaddr_sprintf((uint8_t *)&wh[1])); 143 (void) strncat(buf1, buf2, sizeof (buf2)); 144 (void) snprintf(buf2, sizeof (buf2), "->%s ", 145 ieee80211_macaddr_sprintf(wh->i_addr3)); 146 (void) strncat(buf1, buf2, sizeof (buf2)); 147 (void) snprintf(buf2, sizeof (buf2), "%s", 148 ieee80211_macaddr_sprintf(wh->i_addr2)); 149 (void) strncat(buf1, buf2, sizeof (buf2)); 150 (void) snprintf(buf2, sizeof (buf2), "->%s", 151 ieee80211_macaddr_sprintf(wh->i_addr1)); 152 (void) strncat(buf1, buf2, sizeof (buf2)); 153 break; 154 } 155 ieee80211_dbg(IEEE80211_MSG_ANY, "ieee80211_dump_pkt(): %s", buf1); 156 bzero(buf1, sizeof (buf1)); 157 158 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 159 case IEEE80211_FC0_TYPE_DATA: 160 (void) sprintf(buf2, "data"); 161 break; 162 case IEEE80211_FC0_TYPE_MGT: 163 (void) snprintf(buf2, sizeof (buf2), "%s", 164 ieee80211_mgt_subtype_name[ 165 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 166 >> IEEE80211_FC0_SUBTYPE_SHIFT]); 167 break; 168 default: 169 (void) snprintf(buf2, sizeof (buf2), "type#%d", 170 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 171 break; 172 } 173 (void) strncat(buf1, buf2, sizeof (buf2)); 174 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 175 (void) sprintf(buf2, " WEP"); 176 (void) strcat(buf1, buf2); 177 } 178 if (rate >= 0) { 179 (void) snprintf(buf2, sizeof (buf2), " %dM", rate / 2); 180 (void) strncat(buf1, buf2, sizeof (buf2)); 181 } 182 if (rssi >= 0) { 183 (void) snprintf(buf2, sizeof (buf2), " +%d", rssi); 184 (void) strncat(buf1, buf2, sizeof (buf2)); 185 } 186 ieee80211_dbg(IEEE80211_MSG_ANY, "ieee80211_dump_pkt(): %s", buf1); 187 bzero(buf1, sizeof (buf1)); 188 189 if (len > 0) { 190 for (i = 0; i < (len > 40 ? 40 : len); i++) { 191 if ((i & 0x03) == 0) 192 (void) strcat(buf1, " "); 193 (void) snprintf(buf2, 3, "%02x", buf[i]); 194 (void) strncat(buf1, buf2, 3); 195 } 196 ieee80211_dbg(IEEE80211_MSG_ANY, "ieee80211_dump_pkt(): %s", 197 buf1); 198 } 199 } 200 201 /* 202 * Adjust/Fix the specified node's rate table 203 * 204 * in node 205 * flag IEEE80211_F_DOSORT : sort the node's rate table 206 * IEEE80211_F_DONEGO : mark a rate as basic rate if it is 207 * a device's basic rate 208 * IEEE80211_F_DODEL : delete rates not supported by the device 209 * IEEE80211_F_DOFRATE: check if the fixed rate is supported by 210 * the device 211 * 212 * The highest bit of returned rate value is set to 1 on failure. 213 */ 214 int 215 ieee80211_fix_rate(ieee80211_node_t *in, int flags) 216 { 217 ieee80211com_t *ic = in->in_ic; 218 struct ieee80211_rateset *srs; 219 struct ieee80211_rateset *nrs; 220 boolean_t ignore; 221 int i; 222 int okrate; 223 int badrate; 224 int fixedrate; 225 uint8_t r; 226 227 /* 228 * If the fixed rate check was requested but no 229 * fixed has been defined then just remove it. 230 */ 231 if ((flags & IEEE80211_F_DOFRATE) && 232 (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)) { 233 flags &= ~IEEE80211_F_DOFRATE; 234 } 235 okrate = badrate = fixedrate = 0; 236 srs = &ic->ic_sup_rates[ieee80211_chan2mode(ic, in->in_chan)]; 237 nrs = &in->in_rates; 238 for (i = 0; i < nrs->ir_nrates; ) { 239 int j; 240 241 ignore = B_FALSE; 242 if (flags & IEEE80211_F_DOSORT) { 243 /* 244 * Sort rates. 245 */ 246 for (j = i + 1; j < nrs->ir_nrates; j++) { 247 if (IEEE80211_RV(nrs->ir_rates[i]) > 248 IEEE80211_RV(nrs->ir_rates[j])) { 249 r = nrs->ir_rates[i]; 250 nrs->ir_rates[i] = nrs->ir_rates[j]; 251 nrs->ir_rates[j] = r; 252 } 253 } 254 } 255 r = IEEE80211_RV(nrs->ir_rates[i]); 256 badrate = r; 257 258 /* 259 * Check against supported rates. 260 */ 261 for (j = 0; j < srs->ir_nrates; j++) { 262 if (r == IEEE80211_RV(srs->ir_rates[j])) { 263 /* 264 * Overwrite with the supported rate 265 * value so any basic rate bit is set. 266 * This insures that response we send 267 * to stations have the necessary basic 268 * rate bit set. 269 */ 270 if (flags & IEEE80211_F_DONEGO) 271 nrs->ir_rates[i] = srs->ir_rates[j]; 272 break; 273 } 274 } 275 if (j == srs->ir_nrates) { 276 /* 277 * A rate in the node's rate set is not 278 * supported. We just discard/ignore the rate. 279 * Note that this is important for 11b stations 280 * when they want to associate with an 11g AP. 281 */ 282 ignore = B_TRUE; 283 } 284 285 if (flags & IEEE80211_F_DODEL) { 286 /* 287 * Delete unacceptable rates. 288 */ 289 if (ignore) { 290 nrs->ir_nrates--; 291 for (j = i; j < nrs->ir_nrates; j++) 292 nrs->ir_rates[j] = nrs->ir_rates[j + 1]; 293 nrs->ir_rates[j] = 0; 294 continue; 295 } 296 } 297 if (flags & IEEE80211_F_DOFRATE) { 298 /* 299 * Check any fixed rate is included. 300 */ 301 if (r == ic->ic_fixed_rate) 302 fixedrate = r; 303 } 304 if (!ignore) 305 okrate = nrs->ir_rates[i]; 306 i++; 307 } 308 if (okrate == 0 || ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0)) 309 return (badrate | IEEE80211_RATE_BASIC); 310 else 311 return (IEEE80211_RV(okrate)); 312 } 313 314 /* 315 * Reset 11g-related state. 316 */ 317 void 318 ieee80211_reset_erp(ieee80211com_t *ic) 319 { 320 ic->ic_flags &= ~IEEE80211_F_USEPROT; 321 /* 322 * Short slot time is enabled only when operating in 11g 323 * and not in an IBSS. We must also honor whether or not 324 * the driver is capable of doing it. 325 */ 326 ieee80211_set_shortslottime(ic, 327 ic->ic_curmode == IEEE80211_MODE_11A); 328 /* 329 * Set short preamble and ERP barker-preamble flags. 330 */ 331 if (ic->ic_curmode == IEEE80211_MODE_11A || 332 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) { 333 ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 334 ic->ic_flags &= ~IEEE80211_F_USEBARKER; 335 } else { 336 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 337 ic->ic_flags |= IEEE80211_F_USEBARKER; 338 } 339 } 340 341 /* 342 * Change current channel to be the next available channel 343 */ 344 void 345 ieee80211_reset_chan(ieee80211com_t *ic) 346 { 347 struct ieee80211_channel *ch = ic->ic_curchan; 348 349 IEEE80211_LOCK(ic); 350 do { 351 if (++ch > &ic->ic_sup_channels[IEEE80211_CHAN_MAX]) 352 ch = &ic->ic_sup_channels[0]; 353 if (ieee80211_isset(ic->ic_chan_active, 354 ieee80211_chan2ieee(ic, ch))) { 355 break; 356 } 357 } while (ch != ic->ic_curchan); 358 ic->ic_curchan = ch; 359 IEEE80211_UNLOCK(ic); 360 } 361 362 /* 363 * Set the short slot time state and notify the driver. 364 */ 365 void 366 ieee80211_set_shortslottime(ieee80211com_t *ic, boolean_t on) 367 { 368 if (on) 369 ic->ic_flags |= IEEE80211_F_SHSLOT; 370 else 371 ic->ic_flags &= ~IEEE80211_F_SHSLOT; 372 /* notify driver */ 373 if (ic->ic_set_shortslot != NULL) 374 ic->ic_set_shortslot(ic, on); 375 } 376 377 /* 378 * Mark the basic rates for the 11g rate table based on the 379 * operating mode. For real 11g we mark all the 11b rates 380 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only 381 * 11b rates. There's also a pseudo 11a-mode used to mark only 382 * the basic OFDM rates. 383 */ 384 void 385 ieee80211_setbasicrates(struct ieee80211_rateset *rs, 386 enum ieee80211_phymode mode) 387 { 388 static const struct ieee80211_rateset basic[] = { 389 { 0 }, /* IEEE80211_MODE_AUTO */ 390 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */ 391 { 2, { 2, 4} }, /* IEEE80211_MODE_11B */ 392 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G mixed b/g */ 393 { 0 }, /* IEEE80211_MODE_FH */ 394 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_TURBO_A */ 395 { 4, { 2, 4, 11, 22 } } /* IEEE80211_MODE_TURBO_G (mixed b/g) */ 396 }; 397 int i, j; 398 399 ASSERT(mode < IEEE80211_MODE_MAX); 400 for (i = 0; i < rs->ir_nrates; i++) { 401 rs->ir_rates[i] &= IEEE80211_RATE_VAL; 402 for (j = 0; j < basic[mode].ir_nrates; j++) { 403 if (basic[mode].ir_rates[j] == rs->ir_rates[i]) { 404 rs->ir_rates[i] |= IEEE80211_RATE_BASIC; 405 break; 406 } 407 } 408 } 409 } 410 411 /* 412 * Process STA mode beacon miss events. Send a direct probe request 413 * frame to the current ap bmiss_max times (w/o answer) before 414 * scanning for a new ap. 415 */ 416 void 417 ieee80211_beacon_miss(ieee80211com_t *ic) 418 { 419 ieee80211_impl_t *im = ic->ic_private; 420 421 if (ic->ic_flags & IEEE80211_F_SCAN) 422 return; 423 ieee80211_dbg(IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG, 424 "%s\n", "beacon miss"); 425 426 /* 427 * Our handling is only meaningful for stations that are 428 * associated; any other conditions else will be handled 429 * through different means (e.g. the tx timeout on mgt frames). 430 */ 431 if (ic->ic_opmode != IEEE80211_M_STA || 432 ic->ic_state != IEEE80211_S_RUN) { 433 return; 434 } 435 436 IEEE80211_LOCK(ic); 437 if (++im->im_bmiss_count < im->im_bmiss_max) { 438 /* 439 * Send a directed probe req before falling back to a scan; 440 * if we receive a response ic_bmiss_count will be reset. 441 * Some cards mistakenly report beacon miss so this avoids 442 * the expensive scan if the ap is still there. 443 */ 444 IEEE80211_UNLOCK(ic); 445 (void) ieee80211_send_probereq(ic->ic_bss, ic->ic_macaddr, 446 ic->ic_bss->in_bssid, ic->ic_bss->in_bssid, 447 ic->ic_bss->in_essid, ic->ic_bss->in_esslen, 448 ic->ic_opt_ie, ic->ic_opt_ie_len); 449 return; 450 } 451 im->im_bmiss_count = 0; 452 IEEE80211_UNLOCK(ic); 453 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 454 } 455 456 /* 457 * Manage state transition between INIT | AUTH | ASSOC | RUN. 458 */ 459 static int 460 ieee80211_newstate(ieee80211com_t *ic, enum ieee80211_state nstate, int arg) 461 { 462 struct ieee80211_impl *im = ic->ic_private; 463 ieee80211_node_t *in; 464 enum ieee80211_state ostate; 465 wifi_data_t wd = { 0 }; 466 467 IEEE80211_LOCK(ic); 468 ostate = ic->ic_state; 469 ieee80211_dbg(IEEE80211_MSG_STATE, "ieee80211_newstate(): " 470 "%s -> %s\n", 471 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 472 ic->ic_state = nstate; 473 in = ic->ic_bss; 474 im->im_swbmiss_period = 0; /* Reset software beacon miss period */ 475 476 switch (nstate) { 477 case IEEE80211_S_INIT: 478 IEEE80211_UNLOCK(ic); 479 switch (ostate) { 480 case IEEE80211_S_INIT: 481 return (0); 482 case IEEE80211_S_SCAN: 483 ieee80211_cancel_scan(ic); 484 break; 485 case IEEE80211_S_AUTH: 486 break; 487 case IEEE80211_S_ASSOC: 488 if (ic->ic_opmode == IEEE80211_M_STA) { 489 IEEE80211_SEND_MGMT(ic, in, 490 IEEE80211_FC0_SUBTYPE_DEAUTH, 491 IEEE80211_REASON_AUTH_LEAVE); 492 } 493 break; 494 case IEEE80211_S_RUN: 495 if (ic->ic_opmode == IEEE80211_M_STA) { 496 IEEE80211_SEND_MGMT(ic, in, 497 IEEE80211_FC0_SUBTYPE_DISASSOC, 498 IEEE80211_REASON_ASSOC_LEAVE); 499 ieee80211_sta_leave(ic, in); 500 } 501 break; 502 } 503 IEEE80211_LOCK(ic); 504 im->im_mgt_timer = 0; 505 ieee80211_reset_bss(ic); 506 break; 507 case IEEE80211_S_SCAN: 508 switch (ostate) { 509 case IEEE80211_S_INIT: 510 if (ic->ic_opmode == IEEE80211_M_IBSS && 511 ic->ic_des_chan != IEEE80211_CHAN_ANYC) { 512 /* 513 * AP operation and we already have a channel; 514 * bypass the scan and startup immediately. 515 */ 516 ieee80211_create_ibss(ic, ic->ic_des_chan); 517 } else { 518 IEEE80211_UNLOCK(ic); 519 ieee80211_begin_scan(ic, 520 (arg == 0) ? B_FALSE : B_TRUE); 521 return (0); 522 } 523 break; 524 case IEEE80211_S_SCAN: 525 /* 526 * Scan next. If doing an active scan and the 527 * channel is not marked passive-only then send 528 * a probe request. Otherwise just listen for 529 * beacons on the channel. 530 */ 531 if ((ic->ic_flags & IEEE80211_F_ASCAN) && 532 !IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) { 533 IEEE80211_UNLOCK(ic); 534 (void) ieee80211_send_probereq(in, 535 ic->ic_macaddr, wifi_bcastaddr, 536 wifi_bcastaddr, 537 ic->ic_des_essid, ic->ic_des_esslen, 538 ic->ic_opt_ie, ic->ic_opt_ie_len); 539 return (0); 540 } 541 break; 542 case IEEE80211_S_RUN: 543 /* beacon miss */ 544 ieee80211_dbg(IEEE80211_MSG_STATE, 545 "no recent beacons from %s, rescanning\n", 546 ieee80211_macaddr_sprintf(in->in_macaddr)); 547 IEEE80211_UNLOCK(ic); 548 ieee80211_sta_leave(ic, in); 549 IEEE80211_LOCK(ic); 550 ic->ic_flags &= ~IEEE80211_F_SIBSS; 551 /* FALLTHRU */ 552 case IEEE80211_S_AUTH: 553 case IEEE80211_S_ASSOC: 554 /* timeout restart scan */ 555 in = ieee80211_find_node(&ic->ic_scan, 556 ic->ic_bss->in_macaddr); 557 if (in != NULL) { 558 in->in_fails++; 559 ieee80211_unref_node(&in); 560 } 561 break; 562 } 563 break; 564 case IEEE80211_S_AUTH: 565 switch (ostate) { 566 case IEEE80211_S_INIT: 567 case IEEE80211_S_SCAN: 568 IEEE80211_UNLOCK(ic); 569 IEEE80211_SEND_MGMT(ic, in, IEEE80211_FC0_SUBTYPE_AUTH, 570 1); 571 return (0); 572 case IEEE80211_S_AUTH: 573 case IEEE80211_S_ASSOC: 574 switch (arg) { 575 case IEEE80211_FC0_SUBTYPE_AUTH: 576 IEEE80211_UNLOCK(ic); 577 IEEE80211_SEND_MGMT(ic, in, 578 IEEE80211_FC0_SUBTYPE_AUTH, 2); 579 return (0); 580 case IEEE80211_FC0_SUBTYPE_DEAUTH: 581 /* ignore and retry scan on timeout */ 582 break; 583 } 584 break; 585 case IEEE80211_S_RUN: 586 switch (arg) { 587 case IEEE80211_FC0_SUBTYPE_AUTH: 588 ic->ic_state = ostate; /* stay RUN */ 589 IEEE80211_UNLOCK(ic); 590 IEEE80211_SEND_MGMT(ic, in, 591 IEEE80211_FC0_SUBTYPE_AUTH, 2); 592 return (0); 593 case IEEE80211_FC0_SUBTYPE_DEAUTH: 594 IEEE80211_UNLOCK(ic); 595 ieee80211_sta_leave(ic, in); 596 /* try to re-auth */ 597 IEEE80211_SEND_MGMT(ic, in, 598 IEEE80211_FC0_SUBTYPE_AUTH, 1); 599 return (0); 600 } 601 break; 602 } 603 break; 604 case IEEE80211_S_ASSOC: 605 switch (ostate) { 606 case IEEE80211_S_INIT: 607 case IEEE80211_S_SCAN: 608 case IEEE80211_S_ASSOC: 609 ieee80211_dbg(IEEE80211_MSG_ANY, "ieee80211_newstate: " 610 "invalid transition\n"); 611 break; 612 case IEEE80211_S_AUTH: 613 IEEE80211_UNLOCK(ic); 614 IEEE80211_SEND_MGMT(ic, in, 615 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0); 616 return (0); 617 case IEEE80211_S_RUN: 618 IEEE80211_UNLOCK(ic); 619 ieee80211_sta_leave(ic, in); 620 IEEE80211_SEND_MGMT(ic, in, 621 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1); 622 return (0); 623 } 624 break; 625 case IEEE80211_S_RUN: 626 switch (ostate) { 627 case IEEE80211_S_INIT: 628 ieee80211_err("ieee80211_newstate: " 629 "invalid transition\n"); 630 break; 631 case IEEE80211_S_AUTH: 632 ieee80211_err("ieee80211_newstate: " 633 "invalid transition\n"); 634 break; 635 case IEEE80211_S_SCAN: /* adhoc/hostap mode */ 636 case IEEE80211_S_ASSOC: /* infra mode */ 637 ASSERT(in->in_txrate < in->in_rates.ir_nrates); 638 im->im_mgt_timer = 0; 639 if (ic->ic_opmode == IEEE80211_M_STA) 640 ieee80211_notify_node_join(ic, in); 641 642 /* 643 * We can send data now; update the fastpath with our 644 * current associated BSSID and other relevant settings. 645 */ 646 wd.wd_secalloc = ieee80211_crypto_getciphertype(ic); 647 wd.wd_opmode = ic->ic_opmode; 648 IEEE80211_ADDR_COPY(wd.wd_bssid, in->in_bssid); 649 (void) mac_pdata_update(ic->ic_mach, &wd, sizeof (wd)); 650 break; 651 } 652 653 /* 654 * When 802.1x is not in use mark the port authorized 655 * at this point so traffic can flow. 656 */ 657 if (in->in_authmode != IEEE80211_AUTH_8021X) 658 ieee80211_node_authorize(in); 659 /* 660 * Enable inactivity processing. 661 */ 662 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT; 663 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT; 664 break; /* IEEE80211_S_RUN */ 665 } /* switch nstate */ 666 IEEE80211_UNLOCK(ic); 667 668 return (0); 669 } 670