1 /* 2 * hostapd / IEEE 802.11 Management 3 * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #include "utils/includes.h" 16 17 #ifndef CONFIG_NATIVE_WINDOWS 18 19 #include "utils/common.h" 20 #include "utils/eloop.h" 21 #include "crypto/crypto.h" 22 #include "drivers/driver.h" 23 #include "common/ieee802_11_defs.h" 24 #include "common/ieee802_11_common.h" 25 #include "common/wpa_ctrl.h" 26 #include "radius/radius.h" 27 #include "radius/radius_client.h" 28 #include "hostapd.h" 29 #include "beacon.h" 30 #include "ieee802_11_auth.h" 31 #include "sta_info.h" 32 #include "ieee802_1x.h" 33 #include "wpa_auth.h" 34 #include "wmm.h" 35 #include "ap_list.h" 36 #include "accounting.h" 37 #include "ap_config.h" 38 #include "ap_mlme.h" 39 #include "ieee802_11.h" 40 41 42 u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) 43 { 44 u8 *pos = eid; 45 int i, num, count; 46 47 if (hapd->iface->current_rates == NULL) 48 return eid; 49 50 *pos++ = WLAN_EID_SUPP_RATES; 51 num = hapd->iface->num_rates; 52 if (num > 8) { 53 /* rest of the rates are encoded in Extended supported 54 * rates element */ 55 num = 8; 56 } 57 58 *pos++ = num; 59 count = 0; 60 for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; 61 i++) { 62 count++; 63 *pos = hapd->iface->current_rates[i].rate / 5; 64 if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) 65 *pos |= 0x80; 66 pos++; 67 } 68 69 return pos; 70 } 71 72 73 u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) 74 { 75 u8 *pos = eid; 76 int i, num, count; 77 78 if (hapd->iface->current_rates == NULL) 79 return eid; 80 81 num = hapd->iface->num_rates; 82 if (num <= 8) 83 return eid; 84 num -= 8; 85 86 *pos++ = WLAN_EID_EXT_SUPP_RATES; 87 *pos++ = num; 88 count = 0; 89 for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; 90 i++) { 91 count++; 92 if (count <= 8) 93 continue; /* already in SuppRates IE */ 94 *pos = hapd->iface->current_rates[i].rate / 5; 95 if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) 96 *pos |= 0x80; 97 pos++; 98 } 99 100 return pos; 101 } 102 103 104 u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta, 105 int probe) 106 { 107 int capab = WLAN_CAPABILITY_ESS; 108 int privacy; 109 110 if (hapd->iface->num_sta_no_short_preamble == 0 && 111 hapd->iconf->preamble == SHORT_PREAMBLE) 112 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; 113 114 privacy = hapd->conf->ssid.wep.keys_set; 115 116 if (hapd->conf->ieee802_1x && 117 (hapd->conf->default_wep_key_len || 118 hapd->conf->individual_wep_key_len)) 119 privacy = 1; 120 121 if (hapd->conf->wpa) 122 privacy = 1; 123 124 if (sta) { 125 int policy, def_klen; 126 if (probe && sta->ssid_probe) { 127 policy = sta->ssid_probe->security_policy; 128 def_klen = sta->ssid_probe->wep.default_len; 129 } else { 130 policy = sta->ssid->security_policy; 131 def_klen = sta->ssid->wep.default_len; 132 } 133 privacy = policy != SECURITY_PLAINTEXT; 134 if (policy == SECURITY_IEEE_802_1X && def_klen == 0) 135 privacy = 0; 136 } 137 138 if (privacy) 139 capab |= WLAN_CAPABILITY_PRIVACY; 140 141 if (hapd->iface->current_mode && 142 hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && 143 hapd->iface->num_sta_no_short_slot_time == 0) 144 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 145 146 return capab; 147 } 148 149 150 #ifdef CONFIG_IEEE80211W 151 static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd, 152 struct sta_info *sta, u8 *eid) 153 { 154 u8 *pos = eid; 155 u32 timeout, tu; 156 struct os_time now, passed; 157 158 *pos++ = WLAN_EID_TIMEOUT_INTERVAL; 159 *pos++ = 5; 160 *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK; 161 os_get_time(&now); 162 os_time_sub(&now, &sta->sa_query_start, &passed); 163 tu = (passed.sec * 1000000 + passed.usec) / 1024; 164 if (hapd->conf->assoc_sa_query_max_timeout > tu) 165 timeout = hapd->conf->assoc_sa_query_max_timeout - tu; 166 else 167 timeout = 0; 168 if (timeout < hapd->conf->assoc_sa_query_max_timeout) 169 timeout++; /* add some extra time for local timers */ 170 WPA_PUT_LE32(pos, timeout); 171 pos += 4; 172 173 return pos; 174 } 175 #endif /* CONFIG_IEEE80211W */ 176 177 178 void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len) 179 { 180 int i; 181 if (len > HOSTAPD_MAX_SSID_LEN) 182 len = HOSTAPD_MAX_SSID_LEN; 183 for (i = 0; i < len; i++) { 184 if (ssid[i] >= 32 && ssid[i] < 127) 185 buf[i] = ssid[i]; 186 else 187 buf[i] = '.'; 188 } 189 buf[len] = '\0'; 190 } 191 192 193 /** 194 * ieee802_11_send_deauth - Send Deauthentication frame 195 * @hapd: hostapd BSS data 196 * @addr: Address of the destination STA 197 * @reason: Reason code for Deauthentication 198 */ 199 void ieee802_11_send_deauth(struct hostapd_data *hapd, const u8 *addr, 200 u16 reason) 201 { 202 struct ieee80211_mgmt mgmt; 203 204 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, 205 HOSTAPD_LEVEL_DEBUG, 206 "deauthenticate - reason %d", reason); 207 os_memset(&mgmt, 0, sizeof(mgmt)); 208 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 209 WLAN_FC_STYPE_DEAUTH); 210 os_memcpy(mgmt.da, addr, ETH_ALEN); 211 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN); 212 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN); 213 mgmt.u.deauth.reason_code = host_to_le16(reason); 214 if (hapd->drv.send_mgmt_frame(hapd, &mgmt, IEEE80211_HDRLEN + 215 sizeof(mgmt.u.deauth)) < 0) 216 perror("ieee802_11_send_deauth: send"); 217 } 218 219 220 static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, 221 u16 auth_transaction, const u8 *challenge, 222 int iswep) 223 { 224 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 225 HOSTAPD_LEVEL_DEBUG, 226 "authentication (shared key, transaction %d)", 227 auth_transaction); 228 229 if (auth_transaction == 1) { 230 if (!sta->challenge) { 231 /* Generate a pseudo-random challenge */ 232 u8 key[8]; 233 time_t now; 234 int r; 235 sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); 236 if (sta->challenge == NULL) 237 return WLAN_STATUS_UNSPECIFIED_FAILURE; 238 239 now = time(NULL); 240 r = random(); 241 os_memcpy(key, &now, 4); 242 os_memcpy(key + 4, &r, 4); 243 rc4_skip(key, sizeof(key), 0, 244 sta->challenge, WLAN_AUTH_CHALLENGE_LEN); 245 } 246 return 0; 247 } 248 249 if (auth_transaction != 3) 250 return WLAN_STATUS_UNSPECIFIED_FAILURE; 251 252 /* Transaction 3 */ 253 if (!iswep || !sta->challenge || !challenge || 254 os_memcmp(sta->challenge, challenge, WLAN_AUTH_CHALLENGE_LEN)) { 255 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 256 HOSTAPD_LEVEL_INFO, 257 "shared key authentication - invalid " 258 "challenge-response"); 259 return WLAN_STATUS_CHALLENGE_FAIL; 260 } 261 262 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 263 HOSTAPD_LEVEL_DEBUG, 264 "authentication OK (shared key)"); 265 #ifdef IEEE80211_REQUIRE_AUTH_ACK 266 /* Station will be marked authenticated if it ACKs the 267 * authentication reply. */ 268 #else 269 sta->flags |= WLAN_STA_AUTH; 270 wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); 271 #endif 272 os_free(sta->challenge); 273 sta->challenge = NULL; 274 275 return 0; 276 } 277 278 279 static void send_auth_reply(struct hostapd_data *hapd, 280 const u8 *dst, const u8 *bssid, 281 u16 auth_alg, u16 auth_transaction, u16 resp, 282 const u8 *ies, size_t ies_len) 283 { 284 struct ieee80211_mgmt *reply; 285 u8 *buf; 286 size_t rlen; 287 288 rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; 289 buf = os_zalloc(rlen); 290 if (buf == NULL) 291 return; 292 293 reply = (struct ieee80211_mgmt *) buf; 294 reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 295 WLAN_FC_STYPE_AUTH); 296 os_memcpy(reply->da, dst, ETH_ALEN); 297 os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); 298 os_memcpy(reply->bssid, bssid, ETH_ALEN); 299 300 reply->u.auth.auth_alg = host_to_le16(auth_alg); 301 reply->u.auth.auth_transaction = host_to_le16(auth_transaction); 302 reply->u.auth.status_code = host_to_le16(resp); 303 304 if (ies && ies_len) 305 os_memcpy(reply->u.auth.variable, ies, ies_len); 306 307 wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR 308 " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)", 309 MAC2STR(dst), auth_alg, auth_transaction, 310 resp, (unsigned long) ies_len); 311 if (hapd->drv.send_mgmt_frame(hapd, reply, rlen) < 0) 312 perror("send_auth_reply: send"); 313 314 os_free(buf); 315 } 316 317 318 #ifdef CONFIG_IEEE80211R 319 static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, 320 u16 auth_transaction, u16 status, 321 const u8 *ies, size_t ies_len) 322 { 323 struct hostapd_data *hapd = ctx; 324 struct sta_info *sta; 325 326 send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction, 327 status, ies, ies_len); 328 329 if (status != WLAN_STATUS_SUCCESS) 330 return; 331 332 sta = ap_get_sta(hapd, dst); 333 if (sta == NULL) 334 return; 335 336 hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, 337 HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); 338 sta->flags |= WLAN_STA_AUTH; 339 mlme_authenticate_indication(hapd, sta); 340 } 341 #endif /* CONFIG_IEEE80211R */ 342 343 344 static void handle_auth(struct hostapd_data *hapd, 345 const struct ieee80211_mgmt *mgmt, size_t len) 346 { 347 u16 auth_alg, auth_transaction, status_code; 348 u16 resp = WLAN_STATUS_SUCCESS; 349 struct sta_info *sta = NULL; 350 int res; 351 u16 fc; 352 const u8 *challenge = NULL; 353 u32 session_timeout, acct_interim_interval; 354 int vlan_id = 0; 355 u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; 356 size_t resp_ies_len = 0; 357 358 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { 359 printf("handle_auth - too short payload (len=%lu)\n", 360 (unsigned long) len); 361 return; 362 } 363 364 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 365 auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); 366 status_code = le_to_host16(mgmt->u.auth.status_code); 367 fc = le_to_host16(mgmt->frame_control); 368 369 if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + 370 2 + WLAN_AUTH_CHALLENGE_LEN && 371 mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && 372 mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) 373 challenge = &mgmt->u.auth.variable[2]; 374 375 wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " 376 "auth_transaction=%d status_code=%d wep=%d%s", 377 MAC2STR(mgmt->sa), auth_alg, auth_transaction, 378 status_code, !!(fc & WLAN_FC_ISWEP), 379 challenge ? " challenge" : ""); 380 381 if (hapd->tkip_countermeasures) { 382 resp = WLAN_REASON_MICHAEL_MIC_FAILURE; 383 goto fail; 384 } 385 386 if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && 387 auth_alg == WLAN_AUTH_OPEN) || 388 #ifdef CONFIG_IEEE80211R 389 (hapd->conf->wpa && 390 (hapd->conf->wpa_key_mgmt & 391 (WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK)) && 392 auth_alg == WLAN_AUTH_FT) || 393 #endif /* CONFIG_IEEE80211R */ 394 ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && 395 auth_alg == WLAN_AUTH_SHARED_KEY))) { 396 printf("Unsupported authentication algorithm (%d)\n", 397 auth_alg); 398 resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; 399 goto fail; 400 } 401 402 if (!(auth_transaction == 1 || 403 (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { 404 printf("Unknown authentication transaction number (%d)\n", 405 auth_transaction); 406 resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; 407 goto fail; 408 } 409 410 if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { 411 printf("Station " MACSTR " not allowed to authenticate.\n", 412 MAC2STR(mgmt->sa)); 413 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 414 goto fail; 415 } 416 417 res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len, 418 &session_timeout, 419 &acct_interim_interval, &vlan_id); 420 if (res == HOSTAPD_ACL_REJECT) { 421 printf("Station " MACSTR " not allowed to authenticate.\n", 422 MAC2STR(mgmt->sa)); 423 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 424 goto fail; 425 } 426 if (res == HOSTAPD_ACL_PENDING) { 427 wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR 428 " waiting for an external authentication", 429 MAC2STR(mgmt->sa)); 430 /* Authentication code will re-send the authentication frame 431 * after it has received (and cached) information from the 432 * external source. */ 433 return; 434 } 435 436 sta = ap_sta_add(hapd, mgmt->sa); 437 if (!sta) { 438 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 439 goto fail; 440 } 441 442 if (vlan_id > 0) { 443 if (hostapd_get_vlan_id_ifname(hapd->conf->vlan, 444 vlan_id) == NULL) { 445 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, 446 HOSTAPD_LEVEL_INFO, "Invalid VLAN ID " 447 "%d received from RADIUS server", 448 vlan_id); 449 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 450 goto fail; 451 } 452 sta->vlan_id = vlan_id; 453 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, 454 HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); 455 } 456 457 sta->flags &= ~WLAN_STA_PREAUTH; 458 ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); 459 460 if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) 461 sta->acct_interim_interval = acct_interim_interval; 462 if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) 463 ap_sta_session_timeout(hapd, sta, session_timeout); 464 else 465 ap_sta_no_session_timeout(hapd, sta); 466 467 switch (auth_alg) { 468 case WLAN_AUTH_OPEN: 469 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 470 HOSTAPD_LEVEL_DEBUG, 471 "authentication OK (open system)"); 472 #ifdef IEEE80211_REQUIRE_AUTH_ACK 473 /* Station will be marked authenticated if it ACKs the 474 * authentication reply. */ 475 #else 476 sta->flags |= WLAN_STA_AUTH; 477 wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); 478 sta->auth_alg = WLAN_AUTH_OPEN; 479 mlme_authenticate_indication(hapd, sta); 480 #endif 481 break; 482 case WLAN_AUTH_SHARED_KEY: 483 resp = auth_shared_key(hapd, sta, auth_transaction, challenge, 484 fc & WLAN_FC_ISWEP); 485 sta->auth_alg = WLAN_AUTH_SHARED_KEY; 486 mlme_authenticate_indication(hapd, sta); 487 if (sta->challenge && auth_transaction == 1) { 488 resp_ies[0] = WLAN_EID_CHALLENGE; 489 resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; 490 os_memcpy(resp_ies + 2, sta->challenge, 491 WLAN_AUTH_CHALLENGE_LEN); 492 resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; 493 } 494 break; 495 #ifdef CONFIG_IEEE80211R 496 case WLAN_AUTH_FT: 497 sta->auth_alg = WLAN_AUTH_FT; 498 if (sta->wpa_sm == NULL) 499 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, 500 sta->addr); 501 if (sta->wpa_sm == NULL) { 502 wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " 503 "state machine"); 504 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 505 goto fail; 506 } 507 wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, 508 auth_transaction, mgmt->u.auth.variable, 509 len - IEEE80211_HDRLEN - 510 sizeof(mgmt->u.auth), 511 handle_auth_ft_finish, hapd); 512 /* handle_auth_ft_finish() callback will complete auth. */ 513 return; 514 #endif /* CONFIG_IEEE80211R */ 515 } 516 517 fail: 518 send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, 519 auth_transaction + 1, resp, resp_ies, resp_ies_len); 520 } 521 522 523 static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) 524 { 525 int i, j = 32, aid; 526 527 /* get a unique AID */ 528 if (sta->aid > 0) { 529 wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); 530 return 0; 531 } 532 533 for (i = 0; i < AID_WORDS; i++) { 534 if (hapd->sta_aid[i] == (u32) -1) 535 continue; 536 for (j = 0; j < 32; j++) { 537 if (!(hapd->sta_aid[i] & BIT(j))) 538 break; 539 } 540 if (j < 32) 541 break; 542 } 543 if (j == 32) 544 return -1; 545 aid = i * 32 + j + 1; 546 if (aid > 2007) 547 return -1; 548 549 sta->aid = aid; 550 hapd->sta_aid[i] |= BIT(j); 551 wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); 552 return 0; 553 } 554 555 556 static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, 557 const u8 *ssid_ie, size_t ssid_ie_len) 558 { 559 if (ssid_ie == NULL) 560 return WLAN_STATUS_UNSPECIFIED_FAILURE; 561 562 if (ssid_ie_len != hapd->conf->ssid.ssid_len || 563 os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { 564 char ssid_txt[33]; 565 ieee802_11_print_ssid(ssid_txt, ssid_ie, ssid_ie_len); 566 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 567 HOSTAPD_LEVEL_INFO, 568 "Station tried to associate with unknown SSID " 569 "'%s'", ssid_txt); 570 return WLAN_STATUS_UNSPECIFIED_FAILURE; 571 } 572 573 return WLAN_STATUS_SUCCESS; 574 } 575 576 577 static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, 578 const u8 *wmm_ie, size_t wmm_ie_len) 579 { 580 sta->flags &= ~WLAN_STA_WMM; 581 if (wmm_ie && hapd->conf->wmm_enabled) { 582 if (hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) 583 hostapd_logger(hapd, sta->addr, 584 HOSTAPD_MODULE_WPA, 585 HOSTAPD_LEVEL_DEBUG, 586 "invalid WMM element in association " 587 "request"); 588 else 589 sta->flags |= WLAN_STA_WMM; 590 } 591 return WLAN_STATUS_SUCCESS; 592 } 593 594 595 static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, 596 struct ieee802_11_elems *elems) 597 { 598 if (!elems->supp_rates) { 599 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 600 HOSTAPD_LEVEL_DEBUG, 601 "No supported rates element in AssocReq"); 602 return WLAN_STATUS_UNSPECIFIED_FAILURE; 603 } 604 605 if (elems->supp_rates_len > sizeof(sta->supported_rates)) { 606 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 607 HOSTAPD_LEVEL_DEBUG, 608 "Invalid supported rates element length %d", 609 elems->supp_rates_len); 610 return WLAN_STATUS_UNSPECIFIED_FAILURE; 611 } 612 613 os_memset(sta->supported_rates, 0, sizeof(sta->supported_rates)); 614 os_memcpy(sta->supported_rates, elems->supp_rates, 615 elems->supp_rates_len); 616 sta->supported_rates_len = elems->supp_rates_len; 617 618 if (elems->ext_supp_rates) { 619 if (elems->supp_rates_len + elems->ext_supp_rates_len > 620 sizeof(sta->supported_rates)) { 621 hostapd_logger(hapd, sta->addr, 622 HOSTAPD_MODULE_IEEE80211, 623 HOSTAPD_LEVEL_DEBUG, 624 "Invalid supported rates element length" 625 " %d+%d", elems->supp_rates_len, 626 elems->ext_supp_rates_len); 627 return WLAN_STATUS_UNSPECIFIED_FAILURE; 628 } 629 630 os_memcpy(sta->supported_rates + elems->supp_rates_len, 631 elems->ext_supp_rates, elems->ext_supp_rates_len); 632 sta->supported_rates_len += elems->ext_supp_rates_len; 633 } 634 635 return WLAN_STATUS_SUCCESS; 636 } 637 638 639 static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, 640 const u8 *ies, size_t ies_len, int reassoc) 641 { 642 struct ieee802_11_elems elems; 643 u16 resp; 644 const u8 *wpa_ie; 645 size_t wpa_ie_len; 646 647 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { 648 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 649 HOSTAPD_LEVEL_INFO, "Station sent an invalid " 650 "association request"); 651 return WLAN_STATUS_UNSPECIFIED_FAILURE; 652 } 653 654 resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); 655 if (resp != WLAN_STATUS_SUCCESS) 656 return resp; 657 resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); 658 if (resp != WLAN_STATUS_SUCCESS) 659 return resp; 660 resp = copy_supp_rates(hapd, sta, &elems); 661 if (resp != WLAN_STATUS_SUCCESS) 662 return resp; 663 #ifdef CONFIG_IEEE80211N 664 resp = copy_sta_ht_capab(sta, elems.ht_capabilities, 665 elems.ht_capabilities_len); 666 if (resp != WLAN_STATUS_SUCCESS) 667 return resp; 668 #endif /* CONFIG_IEEE80211N */ 669 670 if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { 671 wpa_ie = elems.rsn_ie; 672 wpa_ie_len = elems.rsn_ie_len; 673 } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && 674 elems.wpa_ie) { 675 wpa_ie = elems.wpa_ie; 676 wpa_ie_len = elems.wpa_ie_len; 677 } else { 678 wpa_ie = NULL; 679 wpa_ie_len = 0; 680 } 681 682 #ifdef CONFIG_WPS 683 sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS); 684 if (hapd->conf->wps_state && elems.wps_ie) { 685 wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " 686 "Request - assume WPS is used"); 687 sta->flags |= WLAN_STA_WPS; 688 wpabuf_free(sta->wps_ie); 689 sta->wps_ie = wpabuf_alloc_copy(elems.wps_ie + 4, 690 elems.wps_ie_len - 4); 691 wpa_ie = NULL; 692 wpa_ie_len = 0; 693 } else if (hapd->conf->wps_state && wpa_ie == NULL) { 694 wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " 695 "(Re)Association Request - possible WPS use"); 696 sta->flags |= WLAN_STA_MAYBE_WPS; 697 } else 698 #endif /* CONFIG_WPS */ 699 if (hapd->conf->wpa && wpa_ie == NULL) { 700 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 701 HOSTAPD_LEVEL_INFO, 702 "No WPA/RSN IE in association request"); 703 return WLAN_STATUS_INVALID_IE; 704 } 705 706 if (hapd->conf->wpa && wpa_ie) { 707 int res; 708 wpa_ie -= 2; 709 wpa_ie_len += 2; 710 if (sta->wpa_sm == NULL) 711 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, 712 sta->addr); 713 if (sta->wpa_sm == NULL) { 714 wpa_printf(MSG_WARNING, "Failed to initialize WPA " 715 "state machine"); 716 return WLAN_STATUS_UNSPECIFIED_FAILURE; 717 } 718 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, 719 wpa_ie, wpa_ie_len, 720 elems.mdie, elems.mdie_len); 721 if (res == WPA_INVALID_GROUP) 722 resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; 723 else if (res == WPA_INVALID_PAIRWISE) 724 resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 725 else if (res == WPA_INVALID_AKMP) 726 resp = WLAN_STATUS_AKMP_NOT_VALID; 727 else if (res == WPA_ALLOC_FAIL) 728 resp = WLAN_STATUS_UNSPECIFIED_FAILURE; 729 #ifdef CONFIG_IEEE80211W 730 else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) 731 resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; 732 else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) 733 resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; 734 #endif /* CONFIG_IEEE80211W */ 735 else if (res == WPA_INVALID_MDIE) 736 resp = WLAN_STATUS_INVALID_MDIE; 737 else if (res != WPA_IE_OK) 738 resp = WLAN_STATUS_INVALID_IE; 739 if (resp != WLAN_STATUS_SUCCESS) 740 return resp; 741 #ifdef CONFIG_IEEE80211W 742 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && 743 sta->sa_query_count > 0) 744 ap_check_sa_query_timeout(hapd, sta); 745 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && 746 (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { 747 /* 748 * STA has already been associated with MFP and SA 749 * Query timeout has not been reached. Reject the 750 * association attempt temporarily and start SA Query, 751 * if one is not pending. 752 */ 753 754 if (sta->sa_query_count == 0) 755 ap_sta_start_sa_query(hapd, sta); 756 757 return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; 758 } 759 760 if (wpa_auth_uses_mfp(sta->wpa_sm)) 761 sta->flags |= WLAN_STA_MFP; 762 else 763 sta->flags &= ~WLAN_STA_MFP; 764 #endif /* CONFIG_IEEE80211W */ 765 766 #ifdef CONFIG_IEEE80211R 767 if (sta->auth_alg == WLAN_AUTH_FT) { 768 if (!reassoc) { 769 wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " 770 "to use association (not " 771 "re-association) with FT auth_alg", 772 MAC2STR(sta->addr)); 773 return WLAN_STATUS_UNSPECIFIED_FAILURE; 774 } 775 776 resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, 777 ies_len); 778 if (resp != WLAN_STATUS_SUCCESS) 779 return resp; 780 } 781 #endif /* CONFIG_IEEE80211R */ 782 783 #ifdef CONFIG_IEEE80211N 784 if ((sta->flags & WLAN_STA_HT) && 785 wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { 786 hostapd_logger(hapd, sta->addr, 787 HOSTAPD_MODULE_IEEE80211, 788 HOSTAPD_LEVEL_INFO, 789 "Station tried to use TKIP with HT " 790 "association"); 791 return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; 792 } 793 #endif /* CONFIG_IEEE80211N */ 794 } else 795 wpa_auth_sta_no_wpa(sta->wpa_sm); 796 797 return WLAN_STATUS_SUCCESS; 798 } 799 800 801 static void send_deauth(struct hostapd_data *hapd, const u8 *addr, 802 u16 reason_code) 803 { 804 int send_len; 805 struct ieee80211_mgmt reply; 806 807 os_memset(&reply, 0, sizeof(reply)); 808 reply.frame_control = 809 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); 810 os_memcpy(reply.da, addr, ETH_ALEN); 811 os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); 812 os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); 813 814 send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); 815 reply.u.deauth.reason_code = host_to_le16(reason_code); 816 817 if (hapd->drv.send_mgmt_frame(hapd, &reply, send_len) < 0) 818 wpa_printf(MSG_INFO, "Failed to send deauth: %s", 819 strerror(errno)); 820 } 821 822 823 static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, 824 u16 status_code, int reassoc, const u8 *ies, 825 size_t ies_len) 826 { 827 int send_len; 828 u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; 829 struct ieee80211_mgmt *reply; 830 u8 *p; 831 832 os_memset(buf, 0, sizeof(buf)); 833 reply = (struct ieee80211_mgmt *) buf; 834 reply->frame_control = 835 IEEE80211_FC(WLAN_FC_TYPE_MGMT, 836 (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : 837 WLAN_FC_STYPE_ASSOC_RESP)); 838 os_memcpy(reply->da, sta->addr, ETH_ALEN); 839 os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); 840 os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); 841 842 send_len = IEEE80211_HDRLEN; 843 send_len += sizeof(reply->u.assoc_resp); 844 reply->u.assoc_resp.capab_info = 845 host_to_le16(hostapd_own_capab_info(hapd, sta, 0)); 846 reply->u.assoc_resp.status_code = host_to_le16(status_code); 847 reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0) 848 | BIT(14) | BIT(15)); 849 /* Supported rates */ 850 p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); 851 /* Extended supported rates */ 852 p = hostapd_eid_ext_supp_rates(hapd, p); 853 if (sta->flags & WLAN_STA_WMM) 854 p = hostapd_eid_wmm(hapd, p); 855 856 #ifdef CONFIG_IEEE80211N 857 p = hostapd_eid_ht_capabilities(hapd, p); 858 p = hostapd_eid_ht_operation(hapd, p); 859 #endif /* CONFIG_IEEE80211N */ 860 861 #ifdef CONFIG_IEEE80211R 862 if (status_code == WLAN_STATUS_SUCCESS) { 863 /* IEEE 802.11r: Mobility Domain Information, Fast BSS 864 * Transition Information, RSN, [RIC Response] */ 865 p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, 866 buf + sizeof(buf) - p, 867 sta->auth_alg, ies, ies_len); 868 } 869 #endif /* CONFIG_IEEE80211R */ 870 871 #ifdef CONFIG_IEEE80211W 872 if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) 873 p = hostapd_eid_assoc_comeback_time(hapd, sta, p); 874 #endif /* CONFIG_IEEE80211W */ 875 876 send_len += p - reply->u.assoc_resp.variable; 877 878 if (hapd->drv.send_mgmt_frame(hapd, reply, send_len) < 0) 879 wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", 880 strerror(errno)); 881 } 882 883 884 static void handle_assoc(struct hostapd_data *hapd, 885 const struct ieee80211_mgmt *mgmt, size_t len, 886 int reassoc) 887 { 888 u16 capab_info, listen_interval; 889 u16 resp = WLAN_STATUS_SUCCESS; 890 const u8 *pos; 891 int left, i; 892 struct sta_info *sta; 893 894 if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : 895 sizeof(mgmt->u.assoc_req))) { 896 printf("handle_assoc(reassoc=%d) - too short payload (len=%lu)" 897 "\n", reassoc, (unsigned long) len); 898 return; 899 } 900 901 if (reassoc) { 902 capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); 903 listen_interval = le_to_host16( 904 mgmt->u.reassoc_req.listen_interval); 905 wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR 906 " capab_info=0x%02x listen_interval=%d current_ap=" 907 MACSTR, 908 MAC2STR(mgmt->sa), capab_info, listen_interval, 909 MAC2STR(mgmt->u.reassoc_req.current_ap)); 910 left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); 911 pos = mgmt->u.reassoc_req.variable; 912 } else { 913 capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); 914 listen_interval = le_to_host16( 915 mgmt->u.assoc_req.listen_interval); 916 wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR 917 " capab_info=0x%02x listen_interval=%d", 918 MAC2STR(mgmt->sa), capab_info, listen_interval); 919 left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); 920 pos = mgmt->u.assoc_req.variable; 921 } 922 923 sta = ap_get_sta(hapd, mgmt->sa); 924 #ifdef CONFIG_IEEE80211R 925 if (sta && sta->auth_alg == WLAN_AUTH_FT && 926 (sta->flags & WLAN_STA_AUTH) == 0) { 927 wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " 928 "prior to authentication since it is using " 929 "over-the-DS FT", MAC2STR(mgmt->sa)); 930 } else 931 #endif /* CONFIG_IEEE80211R */ 932 if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { 933 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 934 HOSTAPD_LEVEL_INFO, "Station tried to " 935 "associate before authentication " 936 "(aid=%d flags=0x%x)", 937 sta ? sta->aid : -1, 938 sta ? sta->flags : 0); 939 send_deauth(hapd, mgmt->sa, 940 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); 941 return; 942 } 943 944 if (hapd->tkip_countermeasures) { 945 resp = WLAN_REASON_MICHAEL_MIC_FAILURE; 946 goto fail; 947 } 948 949 if (listen_interval > hapd->conf->max_listen_interval) { 950 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 951 HOSTAPD_LEVEL_DEBUG, 952 "Too large Listen Interval (%d)", 953 listen_interval); 954 resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; 955 goto fail; 956 } 957 958 /* followed by SSID and Supported rates; and HT capabilities if 802.11n 959 * is used */ 960 resp = check_assoc_ies(hapd, sta, pos, left, reassoc); 961 if (resp != WLAN_STATUS_SUCCESS) 962 goto fail; 963 964 if (hostapd_get_aid(hapd, sta) < 0) { 965 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 966 HOSTAPD_LEVEL_INFO, "No room for more AIDs"); 967 resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; 968 goto fail; 969 } 970 971 sta->capability = capab_info; 972 sta->listen_interval = listen_interval; 973 974 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) 975 sta->flags |= WLAN_STA_NONERP; 976 for (i = 0; i < sta->supported_rates_len; i++) { 977 if ((sta->supported_rates[i] & 0x7f) > 22) { 978 sta->flags &= ~WLAN_STA_NONERP; 979 break; 980 } 981 } 982 if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { 983 sta->nonerp_set = 1; 984 hapd->iface->num_sta_non_erp++; 985 if (hapd->iface->num_sta_non_erp == 1) 986 ieee802_11_set_beacons(hapd->iface); 987 } 988 989 if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && 990 !sta->no_short_slot_time_set) { 991 sta->no_short_slot_time_set = 1; 992 hapd->iface->num_sta_no_short_slot_time++; 993 if (hapd->iface->current_mode->mode == 994 HOSTAPD_MODE_IEEE80211G && 995 hapd->iface->num_sta_no_short_slot_time == 1) 996 ieee802_11_set_beacons(hapd->iface); 997 } 998 999 if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) 1000 sta->flags |= WLAN_STA_SHORT_PREAMBLE; 1001 else 1002 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; 1003 1004 if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && 1005 !sta->no_short_preamble_set) { 1006 sta->no_short_preamble_set = 1; 1007 hapd->iface->num_sta_no_short_preamble++; 1008 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G 1009 && hapd->iface->num_sta_no_short_preamble == 1) 1010 ieee802_11_set_beacons(hapd->iface); 1011 } 1012 1013 #ifdef CONFIG_IEEE80211N 1014 update_ht_state(hapd, sta); 1015 #endif /* CONFIG_IEEE80211N */ 1016 1017 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1018 HOSTAPD_LEVEL_DEBUG, 1019 "association OK (aid %d)", sta->aid); 1020 /* Station will be marked associated, after it acknowledges AssocResp 1021 */ 1022 1023 #ifdef CONFIG_IEEE80211W 1024 if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { 1025 wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " 1026 "SA Query procedure", reassoc ? "re" : ""); 1027 /* TODO: Send a protected Disassociate frame to the STA using 1028 * the old key and Reason Code "Previous Authentication no 1029 * longer valid". Make sure this is only sent protected since 1030 * unprotected frame would be received by the STA that is now 1031 * trying to associate. 1032 */ 1033 } 1034 #endif /* CONFIG_IEEE80211W */ 1035 1036 if (reassoc) { 1037 os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap, 1038 ETH_ALEN); 1039 } 1040 1041 if (sta->last_assoc_req) 1042 os_free(sta->last_assoc_req); 1043 sta->last_assoc_req = os_malloc(len); 1044 if (sta->last_assoc_req) 1045 os_memcpy(sta->last_assoc_req, mgmt, len); 1046 1047 /* Make sure that the previously registered inactivity timer will not 1048 * remove the STA immediately. */ 1049 sta->timeout_next = STA_NULLFUNC; 1050 1051 fail: 1052 send_assoc_resp(hapd, sta, resp, reassoc, pos, left); 1053 } 1054 1055 1056 static void handle_disassoc(struct hostapd_data *hapd, 1057 const struct ieee80211_mgmt *mgmt, size_t len) 1058 { 1059 struct sta_info *sta; 1060 1061 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { 1062 printf("handle_disassoc - too short payload (len=%lu)\n", 1063 (unsigned long) len); 1064 return; 1065 } 1066 1067 wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", 1068 MAC2STR(mgmt->sa), 1069 le_to_host16(mgmt->u.disassoc.reason_code)); 1070 1071 sta = ap_get_sta(hapd, mgmt->sa); 1072 if (sta == NULL) { 1073 printf("Station " MACSTR " trying to disassociate, but it " 1074 "is not associated.\n", MAC2STR(mgmt->sa)); 1075 return; 1076 } 1077 1078 sta->flags &= ~WLAN_STA_ASSOC; 1079 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR, 1080 MAC2STR(sta->addr)); 1081 wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); 1082 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1083 HOSTAPD_LEVEL_INFO, "disassociated"); 1084 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; 1085 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); 1086 /* Stop Accounting and IEEE 802.1X sessions, but leave the STA 1087 * authenticated. */ 1088 accounting_sta_stop(hapd, sta); 1089 ieee802_1x_free_station(sta); 1090 hapd->drv.sta_remove(hapd, sta->addr); 1091 1092 if (sta->timeout_next == STA_NULLFUNC || 1093 sta->timeout_next == STA_DISASSOC) { 1094 sta->timeout_next = STA_DEAUTH; 1095 eloop_cancel_timeout(ap_handle_timer, hapd, sta); 1096 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, 1097 hapd, sta); 1098 } 1099 1100 mlme_disassociate_indication( 1101 hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); 1102 } 1103 1104 1105 static void handle_deauth(struct hostapd_data *hapd, 1106 const struct ieee80211_mgmt *mgmt, size_t len) 1107 { 1108 struct sta_info *sta; 1109 1110 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { 1111 printf("handle_deauth - too short payload (len=%lu)\n", 1112 (unsigned long) len); 1113 return; 1114 } 1115 1116 wpa_printf(MSG_DEBUG, "deauthentication: STA=" MACSTR 1117 " reason_code=%d", 1118 MAC2STR(mgmt->sa), 1119 le_to_host16(mgmt->u.deauth.reason_code)); 1120 1121 sta = ap_get_sta(hapd, mgmt->sa); 1122 if (sta == NULL) { 1123 printf("Station " MACSTR " trying to deauthenticate, but it " 1124 "is not authenticated.\n", MAC2STR(mgmt->sa)); 1125 return; 1126 } 1127 1128 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC); 1129 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR, 1130 MAC2STR(sta->addr)); 1131 wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); 1132 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1133 HOSTAPD_LEVEL_DEBUG, "deauthenticated"); 1134 mlme_deauthenticate_indication( 1135 hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); 1136 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; 1137 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); 1138 ap_free_sta(hapd, sta); 1139 } 1140 1141 1142 static void handle_beacon(struct hostapd_data *hapd, 1143 const struct ieee80211_mgmt *mgmt, size_t len, 1144 struct hostapd_frame_info *fi) 1145 { 1146 struct ieee802_11_elems elems; 1147 1148 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { 1149 printf("handle_beacon - too short payload (len=%lu)\n", 1150 (unsigned long) len); 1151 return; 1152 } 1153 1154 (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, 1155 len - (IEEE80211_HDRLEN + 1156 sizeof(mgmt->u.beacon)), &elems, 1157 0); 1158 1159 ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); 1160 } 1161 1162 1163 #ifdef CONFIG_IEEE80211W 1164 1165 /* MLME-SAQuery.request */ 1166 void ieee802_11_send_sa_query_req(struct hostapd_data *hapd, 1167 const u8 *addr, const u8 *trans_id) 1168 { 1169 struct ieee80211_mgmt mgmt; 1170 u8 *end; 1171 1172 wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to " 1173 MACSTR, MAC2STR(addr)); 1174 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 1175 trans_id, WLAN_SA_QUERY_TR_ID_LEN); 1176 1177 os_memset(&mgmt, 0, sizeof(mgmt)); 1178 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 1179 WLAN_FC_STYPE_ACTION); 1180 os_memcpy(mgmt.da, addr, ETH_ALEN); 1181 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN); 1182 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN); 1183 mgmt.u.action.category = WLAN_ACTION_SA_QUERY; 1184 mgmt.u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST; 1185 os_memcpy(mgmt.u.action.u.sa_query_req.trans_id, trans_id, 1186 WLAN_SA_QUERY_TR_ID_LEN); 1187 end = mgmt.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN; 1188 if (hapd->drv.send_mgmt_frame(hapd, &mgmt, end - (u8 *) &mgmt) < 0) 1189 perror("ieee802_11_send_sa_query_req: send"); 1190 } 1191 1192 1193 static void hostapd_sa_query_request(struct hostapd_data *hapd, 1194 const struct ieee80211_mgmt *mgmt) 1195 { 1196 struct sta_info *sta; 1197 struct ieee80211_mgmt resp; 1198 u8 *end; 1199 1200 wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Request from " 1201 MACSTR, MAC2STR(mgmt->sa)); 1202 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 1203 mgmt->u.action.u.sa_query_resp.trans_id, 1204 WLAN_SA_QUERY_TR_ID_LEN); 1205 1206 sta = ap_get_sta(hapd, mgmt->sa); 1207 if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { 1208 wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignore SA Query Request " 1209 "from unassociated STA " MACSTR, MAC2STR(mgmt->sa)); 1210 return; 1211 } 1212 1213 wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Response to " 1214 MACSTR, MAC2STR(mgmt->sa)); 1215 1216 os_memset(&resp, 0, sizeof(resp)); 1217 resp.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 1218 WLAN_FC_STYPE_ACTION); 1219 os_memcpy(resp.da, mgmt->sa, ETH_ALEN); 1220 os_memcpy(resp.sa, hapd->own_addr, ETH_ALEN); 1221 os_memcpy(resp.bssid, hapd->own_addr, ETH_ALEN); 1222 resp.u.action.category = WLAN_ACTION_SA_QUERY; 1223 resp.u.action.u.sa_query_req.action = WLAN_SA_QUERY_RESPONSE; 1224 os_memcpy(resp.u.action.u.sa_query_req.trans_id, 1225 mgmt->u.action.u.sa_query_req.trans_id, 1226 WLAN_SA_QUERY_TR_ID_LEN); 1227 end = resp.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN; 1228 if (hapd->drv.send_mgmt_frame(hapd, &resp, end - (u8 *) &resp) < 0) 1229 perror("hostapd_sa_query_request: send"); 1230 } 1231 1232 1233 static void hostapd_sa_query_action(struct hostapd_data *hapd, 1234 const struct ieee80211_mgmt *mgmt, 1235 size_t len) 1236 { 1237 struct sta_info *sta; 1238 const u8 *end; 1239 int i; 1240 1241 end = mgmt->u.action.u.sa_query_resp.trans_id + 1242 WLAN_SA_QUERY_TR_ID_LEN; 1243 if (((u8 *) mgmt) + len < end) { 1244 wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " 1245 "frame (len=%lu)", (unsigned long) len); 1246 return; 1247 } 1248 1249 if (mgmt->u.action.u.sa_query_resp.action == WLAN_SA_QUERY_REQUEST) { 1250 hostapd_sa_query_request(hapd, mgmt); 1251 return; 1252 } 1253 1254 if (mgmt->u.action.u.sa_query_resp.action != WLAN_SA_QUERY_RESPONSE) { 1255 wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query " 1256 "Action %d", mgmt->u.action.u.sa_query_resp.action); 1257 return; 1258 } 1259 1260 wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from " 1261 MACSTR, MAC2STR(mgmt->sa)); 1262 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 1263 mgmt->u.action.u.sa_query_resp.trans_id, 1264 WLAN_SA_QUERY_TR_ID_LEN); 1265 1266 /* MLME-SAQuery.confirm */ 1267 1268 sta = ap_get_sta(hapd, mgmt->sa); 1269 if (sta == NULL || sta->sa_query_trans_id == NULL) { 1270 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with " 1271 "pending SA Query request found"); 1272 return; 1273 } 1274 1275 for (i = 0; i < sta->sa_query_count; i++) { 1276 if (os_memcmp(sta->sa_query_trans_id + 1277 i * WLAN_SA_QUERY_TR_ID_LEN, 1278 mgmt->u.action.u.sa_query_resp.trans_id, 1279 WLAN_SA_QUERY_TR_ID_LEN) == 0) 1280 break; 1281 } 1282 1283 if (i >= sta->sa_query_count) { 1284 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query " 1285 "transaction identifier found"); 1286 return; 1287 } 1288 1289 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1290 HOSTAPD_LEVEL_DEBUG, 1291 "Reply to pending SA Query received"); 1292 ap_sta_stop_sa_query(hapd, sta); 1293 } 1294 1295 1296 static int robust_action_frame(u8 category) 1297 { 1298 return category != WLAN_ACTION_PUBLIC && 1299 category != WLAN_ACTION_HT; 1300 } 1301 #endif /* CONFIG_IEEE80211W */ 1302 1303 1304 static void handle_action(struct hostapd_data *hapd, 1305 const struct ieee80211_mgmt *mgmt, size_t len) 1306 { 1307 struct sta_info *sta; 1308 1309 if (len < IEEE80211_HDRLEN + 1) { 1310 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 1311 HOSTAPD_LEVEL_DEBUG, 1312 "handle_action - too short payload (len=%lu)", 1313 (unsigned long) len); 1314 return; 1315 } 1316 1317 sta = ap_get_sta(hapd, mgmt->sa); 1318 #ifdef CONFIG_IEEE80211W 1319 if (sta && (sta->flags & WLAN_STA_MFP) && 1320 !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP) && 1321 robust_action_frame(mgmt->u.action.category))) { 1322 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 1323 HOSTAPD_LEVEL_DEBUG, 1324 "Dropped unprotected Robust Action frame from " 1325 "an MFP STA"); 1326 return; 1327 } 1328 #endif /* CONFIG_IEEE80211W */ 1329 1330 switch (mgmt->u.action.category) { 1331 #ifdef CONFIG_IEEE80211R 1332 case WLAN_ACTION_FT: 1333 { 1334 if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { 1335 wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored FT Action " 1336 "frame from unassociated STA " MACSTR, 1337 MAC2STR(mgmt->sa)); 1338 return; 1339 } 1340 1341 if (wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, 1342 len - IEEE80211_HDRLEN)) 1343 break; 1344 1345 return; 1346 } 1347 #endif /* CONFIG_IEEE80211R */ 1348 case WLAN_ACTION_WMM: 1349 hostapd_wmm_action(hapd, mgmt, len); 1350 return; 1351 #ifdef CONFIG_IEEE80211W 1352 case WLAN_ACTION_SA_QUERY: 1353 hostapd_sa_query_action(hapd, mgmt, len); 1354 return; 1355 #endif /* CONFIG_IEEE80211W */ 1356 case WLAN_ACTION_PUBLIC: 1357 if (hapd->public_action_cb) { 1358 hapd->public_action_cb(hapd->public_action_cb_ctx, 1359 (u8 *) mgmt, len, 1360 hapd->iface->freq); 1361 return; 1362 } 1363 break; 1364 } 1365 1366 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 1367 HOSTAPD_LEVEL_DEBUG, 1368 "handle_action - unknown action category %d or invalid " 1369 "frame", 1370 mgmt->u.action.category); 1371 if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) && 1372 !(mgmt->sa[0] & 0x01)) { 1373 struct ieee80211_mgmt *resp; 1374 1375 /* 1376 * IEEE 802.11-REVma/D9.0 - 7.3.1.11 1377 * Return the Action frame to the source without change 1378 * except that MSB of the Category set to 1. 1379 */ 1380 wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " 1381 "frame back to sender"); 1382 resp = os_malloc(len); 1383 if (resp == NULL) 1384 return; 1385 os_memcpy(resp, mgmt, len); 1386 os_memcpy(resp->da, resp->sa, ETH_ALEN); 1387 os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); 1388 os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); 1389 resp->u.action.category |= 0x80; 1390 1391 hapd->drv.send_mgmt_frame(hapd, resp, len); 1392 os_free(resp); 1393 } 1394 } 1395 1396 1397 /** 1398 * ieee802_11_mgmt - process incoming IEEE 802.11 management frames 1399 * @hapd: hostapd BSS data structure (the BSS to which the management frame was 1400 * sent to) 1401 * @buf: management frame data (starting from IEEE 802.11 header) 1402 * @len: length of frame data in octets 1403 * @fi: meta data about received frame (signal level, etc.) 1404 * 1405 * Process all incoming IEEE 802.11 management frames. This will be called for 1406 * each frame received from the kernel driver through wlan#ap interface. In 1407 * addition, it can be called to re-inserted pending frames (e.g., when using 1408 * external RADIUS server as an MAC ACL). 1409 */ 1410 void ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, 1411 struct hostapd_frame_info *fi) 1412 { 1413 struct ieee80211_mgmt *mgmt; 1414 int broadcast; 1415 u16 fc, stype; 1416 1417 mgmt = (struct ieee80211_mgmt *) buf; 1418 fc = le_to_host16(mgmt->frame_control); 1419 stype = WLAN_FC_GET_STYPE(fc); 1420 1421 if (stype == WLAN_FC_STYPE_BEACON) { 1422 handle_beacon(hapd, mgmt, len, fi); 1423 return; 1424 } 1425 1426 broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff && 1427 mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff && 1428 mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff; 1429 1430 if (!broadcast && 1431 os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { 1432 printf("MGMT: BSSID=" MACSTR " not our address\n", 1433 MAC2STR(mgmt->bssid)); 1434 return; 1435 } 1436 1437 1438 if (stype == WLAN_FC_STYPE_PROBE_REQ) { 1439 handle_probe_req(hapd, mgmt, len); 1440 return; 1441 } 1442 1443 if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { 1444 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 1445 HOSTAPD_LEVEL_DEBUG, 1446 "MGMT: DA=" MACSTR " not our address", 1447 MAC2STR(mgmt->da)); 1448 return; 1449 } 1450 1451 switch (stype) { 1452 case WLAN_FC_STYPE_AUTH: 1453 wpa_printf(MSG_DEBUG, "mgmt::auth"); 1454 handle_auth(hapd, mgmt, len); 1455 break; 1456 case WLAN_FC_STYPE_ASSOC_REQ: 1457 wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); 1458 handle_assoc(hapd, mgmt, len, 0); 1459 break; 1460 case WLAN_FC_STYPE_REASSOC_REQ: 1461 wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); 1462 handle_assoc(hapd, mgmt, len, 1); 1463 break; 1464 case WLAN_FC_STYPE_DISASSOC: 1465 wpa_printf(MSG_DEBUG, "mgmt::disassoc"); 1466 handle_disassoc(hapd, mgmt, len); 1467 break; 1468 case WLAN_FC_STYPE_DEAUTH: 1469 wpa_printf(MSG_DEBUG, "mgmt::deauth"); 1470 handle_deauth(hapd, mgmt, len); 1471 break; 1472 case WLAN_FC_STYPE_ACTION: 1473 wpa_printf(MSG_DEBUG, "mgmt::action"); 1474 handle_action(hapd, mgmt, len); 1475 break; 1476 default: 1477 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, 1478 HOSTAPD_LEVEL_DEBUG, 1479 "unknown mgmt frame subtype %d", stype); 1480 break; 1481 } 1482 } 1483 1484 1485 static void handle_auth_cb(struct hostapd_data *hapd, 1486 const struct ieee80211_mgmt *mgmt, 1487 size_t len, int ok) 1488 { 1489 u16 auth_alg, auth_transaction, status_code; 1490 struct sta_info *sta; 1491 1492 if (!ok) { 1493 hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, 1494 HOSTAPD_LEVEL_NOTICE, 1495 "did not acknowledge authentication response"); 1496 return; 1497 } 1498 1499 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { 1500 printf("handle_auth_cb - too short payload (len=%lu)\n", 1501 (unsigned long) len); 1502 return; 1503 } 1504 1505 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 1506 auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); 1507 status_code = le_to_host16(mgmt->u.auth.status_code); 1508 1509 sta = ap_get_sta(hapd, mgmt->da); 1510 if (!sta) { 1511 printf("handle_auth_cb: STA " MACSTR " not found\n", 1512 MAC2STR(mgmt->da)); 1513 return; 1514 } 1515 1516 if (status_code == WLAN_STATUS_SUCCESS && 1517 ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || 1518 (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { 1519 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1520 HOSTAPD_LEVEL_INFO, "authenticated"); 1521 sta->flags |= WLAN_STA_AUTH; 1522 } 1523 } 1524 1525 1526 static void handle_assoc_cb(struct hostapd_data *hapd, 1527 const struct ieee80211_mgmt *mgmt, 1528 size_t len, int reassoc, int ok) 1529 { 1530 u16 status; 1531 struct sta_info *sta; 1532 int new_assoc = 1; 1533 struct ieee80211_ht_capabilities ht_cap; 1534 1535 if (!ok) { 1536 hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, 1537 HOSTAPD_LEVEL_DEBUG, 1538 "did not acknowledge association response"); 1539 return; 1540 } 1541 1542 if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : 1543 sizeof(mgmt->u.assoc_resp))) { 1544 printf("handle_assoc_cb(reassoc=%d) - too short payload " 1545 "(len=%lu)\n", reassoc, (unsigned long) len); 1546 return; 1547 } 1548 1549 if (reassoc) 1550 status = le_to_host16(mgmt->u.reassoc_resp.status_code); 1551 else 1552 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1553 1554 sta = ap_get_sta(hapd, mgmt->da); 1555 if (!sta) { 1556 printf("handle_assoc_cb: STA " MACSTR " not found\n", 1557 MAC2STR(mgmt->da)); 1558 return; 1559 } 1560 1561 if (status != WLAN_STATUS_SUCCESS) 1562 goto fail; 1563 1564 /* Stop previous accounting session, if one is started, and allocate 1565 * new session id for the new session. */ 1566 accounting_sta_stop(hapd, sta); 1567 1568 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1569 HOSTAPD_LEVEL_INFO, 1570 "associated (aid %d)", 1571 sta->aid); 1572 1573 if (sta->flags & WLAN_STA_ASSOC) 1574 new_assoc = 0; 1575 sta->flags |= WLAN_STA_ASSOC; 1576 if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) || 1577 sta->auth_alg == WLAN_AUTH_FT) { 1578 /* 1579 * Open, static WEP, or FT protocol; no separate authorization 1580 * step. 1581 */ 1582 sta->flags |= WLAN_STA_AUTHORIZED; 1583 wpa_msg(hapd->msg_ctx, MSG_INFO, 1584 AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr)); 1585 } 1586 1587 if (reassoc) 1588 mlme_reassociate_indication(hapd, sta); 1589 else 1590 mlme_associate_indication(hapd, sta); 1591 1592 #ifdef CONFIG_IEEE80211W 1593 sta->sa_query_timed_out = 0; 1594 #endif /* CONFIG_IEEE80211W */ 1595 1596 /* 1597 * Remove the STA entry in order to make sure the STA PS state gets 1598 * cleared and configuration gets updated in case of reassociation back 1599 * to the same AP. 1600 */ 1601 hapd->drv.sta_remove(hapd, sta->addr); 1602 1603 #ifdef CONFIG_IEEE80211N 1604 if (sta->flags & WLAN_STA_HT) 1605 hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); 1606 #endif /* CONFIG_IEEE80211N */ 1607 1608 if (hapd->drv.sta_add(hapd, sta->addr, sta->aid, sta->capability, 1609 sta->supported_rates, sta->supported_rates_len, 1610 sta->listen_interval, 1611 sta->flags & WLAN_STA_HT ? &ht_cap : NULL)) { 1612 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 1613 HOSTAPD_LEVEL_NOTICE, 1614 "Could not add STA to kernel driver"); 1615 } 1616 1617 if (sta->eapol_sm == NULL) { 1618 /* 1619 * This STA does not use RADIUS server for EAP authentication, 1620 * so bind it to the selected VLAN interface now, since the 1621 * interface selection is not going to change anymore. 1622 */ 1623 if (ap_sta_bind_vlan(hapd, sta, 0) < 0) 1624 goto fail; 1625 } else if (sta->vlan_id) { 1626 /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ 1627 if (ap_sta_bind_vlan(hapd, sta, 0) < 0) 1628 goto fail; 1629 } 1630 1631 hapd->drv.set_sta_flags(hapd, sta); 1632 1633 if (sta->auth_alg == WLAN_AUTH_FT) 1634 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); 1635 else 1636 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); 1637 hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); 1638 1639 ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); 1640 1641 fail: 1642 /* Copy of the association request is not needed anymore */ 1643 if (sta->last_assoc_req) { 1644 os_free(sta->last_assoc_req); 1645 sta->last_assoc_req = NULL; 1646 } 1647 } 1648 1649 1650 /** 1651 * ieee802_11_mgmt_cb - Process management frame TX status callback 1652 * @hapd: hostapd BSS data structure (the BSS from which the management frame 1653 * was sent from) 1654 * @buf: management frame data (starting from IEEE 802.11 header) 1655 * @len: length of frame data in octets 1656 * @stype: management frame subtype from frame control field 1657 * @ok: Whether the frame was ACK'ed 1658 */ 1659 void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, 1660 u16 stype, int ok) 1661 { 1662 const struct ieee80211_mgmt *mgmt; 1663 mgmt = (const struct ieee80211_mgmt *) buf; 1664 1665 switch (stype) { 1666 case WLAN_FC_STYPE_AUTH: 1667 wpa_printf(MSG_DEBUG, "mgmt::auth cb"); 1668 handle_auth_cb(hapd, mgmt, len, ok); 1669 break; 1670 case WLAN_FC_STYPE_ASSOC_RESP: 1671 wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); 1672 handle_assoc_cb(hapd, mgmt, len, 0, ok); 1673 break; 1674 case WLAN_FC_STYPE_REASSOC_RESP: 1675 wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); 1676 handle_assoc_cb(hapd, mgmt, len, 1, ok); 1677 break; 1678 case WLAN_FC_STYPE_PROBE_RESP: 1679 wpa_printf(MSG_DEBUG, "mgmt::proberesp cb"); 1680 break; 1681 case WLAN_FC_STYPE_DEAUTH: 1682 /* ignore */ 1683 break; 1684 case WLAN_FC_STYPE_ACTION: 1685 wpa_printf(MSG_DEBUG, "mgmt::action cb"); 1686 break; 1687 default: 1688 printf("unknown mgmt cb frame subtype %d\n", stype); 1689 break; 1690 } 1691 } 1692 1693 1694 int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) 1695 { 1696 /* TODO */ 1697 return 0; 1698 } 1699 1700 1701 int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, 1702 char *buf, size_t buflen) 1703 { 1704 /* TODO */ 1705 return 0; 1706 } 1707 1708 1709 void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, 1710 const u8 *buf, size_t len, int ack) 1711 { 1712 struct sta_info *sta; 1713 struct hostapd_iface *iface = hapd->iface; 1714 1715 sta = ap_get_sta(hapd, addr); 1716 if (sta == NULL && iface->num_bss > 1) { 1717 size_t j; 1718 for (j = 0; j < iface->num_bss; j++) { 1719 hapd = iface->bss[j]; 1720 sta = ap_get_sta(hapd, addr); 1721 if (sta) 1722 break; 1723 } 1724 } 1725 if (sta == NULL) 1726 return; 1727 if (sta->flags & WLAN_STA_PENDING_POLL) { 1728 wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " 1729 "activity poll", MAC2STR(sta->addr), 1730 ack ? "ACKed" : "did not ACK"); 1731 if (ack) 1732 sta->flags &= ~WLAN_STA_PENDING_POLL; 1733 } 1734 1735 ieee802_1x_tx_status(hapd, sta, buf, len, ack); 1736 } 1737 1738 1739 void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, 1740 int wds) 1741 { 1742 struct sta_info *sta; 1743 1744 sta = ap_get_sta(hapd, src); 1745 if (sta && (sta->flags & WLAN_STA_ASSOC)) { 1746 if (wds && !(sta->flags & WLAN_STA_WDS)) { 1747 wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " 1748 "STA " MACSTR " (aid %u)", 1749 MAC2STR(sta->addr), sta->aid); 1750 sta->flags |= WLAN_STA_WDS; 1751 hapd->drv.set_wds_sta(hapd, sta->addr, sta->aid, 1); 1752 } 1753 return; 1754 } 1755 1756 wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " 1757 MACSTR, MAC2STR(src)); 1758 if (sta && (sta->flags & WLAN_STA_AUTH)) 1759 hapd->drv.sta_disassoc( 1760 hapd, src, 1761 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); 1762 else 1763 hapd->drv.sta_deauth( 1764 hapd, src, 1765 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); 1766 } 1767 1768 1769 #endif /* CONFIG_NATIVE_WINDOWS */ 1770