1 /* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2012, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "includes.h" 10 11 #include "common.h" 12 #include "eapol_supp/eapol_supp_sm.h" 13 #include "rsn_supp/wpa.h" 14 #include "eloop.h" 15 #include "config.h" 16 #include "l2_packet/l2_packet.h" 17 #include "wpa_supplicant_i.h" 18 #include "driver_i.h" 19 #include "pcsc_funcs.h" 20 #include "rsn_supp/preauth.h" 21 #include "rsn_supp/pmksa_cache.h" 22 #include "common/wpa_ctrl.h" 23 #include "eap_peer/eap.h" 24 #include "ap/hostapd.h" 25 #include "p2p/p2p.h" 26 #include "wnm_sta.h" 27 #include "notify.h" 28 #include "common/ieee802_11_defs.h" 29 #include "common/ieee802_11_common.h" 30 #include "crypto/random.h" 31 #include "blacklist.h" 32 #include "wpas_glue.h" 33 #include "wps_supplicant.h" 34 #include "ibss_rsn.h" 35 #include "sme.h" 36 #include "gas_query.h" 37 #include "p2p_supplicant.h" 38 #include "bgscan.h" 39 #include "autoscan.h" 40 #include "ap.h" 41 #include "bss.h" 42 #include "scan.h" 43 #include "offchannel.h" 44 #include "interworking.h" 45 46 47 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s); 48 49 50 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 51 struct wpa_ssid *ssid) 52 { 53 struct os_time now; 54 55 if (ssid == NULL || ssid->disabled_until.sec == 0) 56 return 0; 57 58 os_get_time(&now); 59 if (ssid->disabled_until.sec > now.sec) 60 return ssid->disabled_until.sec - now.sec; 61 62 wpas_clear_temp_disabled(wpa_s, ssid, 0); 63 64 return 0; 65 } 66 67 68 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 69 { 70 struct wpa_ssid *ssid, *old_ssid; 71 int res; 72 73 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 74 return 0; 75 76 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 77 "information"); 78 ssid = wpa_supplicant_get_ssid(wpa_s); 79 if (ssid == NULL) { 80 wpa_msg(wpa_s, MSG_INFO, 81 "No network configuration found for the current AP"); 82 return -1; 83 } 84 85 if (wpas_network_disabled(wpa_s, ssid)) { 86 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 87 return -1; 88 } 89 90 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 91 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 92 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 93 return -1; 94 } 95 96 res = wpas_temp_disabled(wpa_s, ssid); 97 if (res > 0) { 98 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 99 "disabled for %d second(s)", res); 100 return -1; 101 } 102 103 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 104 "current AP"); 105 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 106 u8 wpa_ie[80]; 107 size_t wpa_ie_len = sizeof(wpa_ie); 108 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 109 wpa_ie, &wpa_ie_len) < 0) 110 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 111 } else { 112 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 113 } 114 115 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 116 eapol_sm_invalidate_cached_session(wpa_s->eapol); 117 old_ssid = wpa_s->current_ssid; 118 wpa_s->current_ssid = ssid; 119 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 120 wpa_supplicant_initiate_eapol(wpa_s); 121 if (old_ssid != wpa_s->current_ssid) 122 wpas_notify_network_changed(wpa_s); 123 124 return 0; 125 } 126 127 128 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 129 { 130 struct wpa_supplicant *wpa_s = eloop_ctx; 131 132 if (wpa_s->countermeasures) { 133 wpa_s->countermeasures = 0; 134 wpa_drv_set_countermeasures(wpa_s, 0); 135 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 136 wpa_supplicant_req_scan(wpa_s, 0, 0); 137 } 138 } 139 140 141 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 142 { 143 int bssid_changed; 144 145 wnm_bss_keep_alive_deinit(wpa_s); 146 147 #ifdef CONFIG_IBSS_RSN 148 ibss_rsn_deinit(wpa_s->ibss_rsn); 149 wpa_s->ibss_rsn = NULL; 150 #endif /* CONFIG_IBSS_RSN */ 151 152 #ifdef CONFIG_AP 153 wpa_supplicant_ap_deinit(wpa_s); 154 #endif /* CONFIG_AP */ 155 156 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 157 return; 158 159 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 160 #ifdef ANDROID 161 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 162 #endif 163 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 164 os_memset(wpa_s->bssid, 0, ETH_ALEN); 165 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 166 #ifdef CONFIG_SME 167 wpa_s->sme.prev_bssid_set = 0; 168 #endif /* CONFIG_SME */ 169 #ifdef CONFIG_P2P 170 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 171 #endif /* CONFIG_P2P */ 172 wpa_s->current_bss = NULL; 173 wpa_s->assoc_freq = 0; 174 #ifdef CONFIG_IEEE80211R 175 #ifdef CONFIG_SME 176 if (wpa_s->sme.ft_ies) 177 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 178 #endif /* CONFIG_SME */ 179 #endif /* CONFIG_IEEE80211R */ 180 181 if (bssid_changed) 182 wpas_notify_bssid_changed(wpa_s); 183 184 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 185 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 186 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 187 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 188 wpa_s->ap_ies_from_associnfo = 0; 189 wpa_s->current_ssid = NULL; 190 wpa_s->key_mgmt = 0; 191 } 192 193 194 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 195 { 196 struct wpa_ie_data ie; 197 int pmksa_set = -1; 198 size_t i; 199 200 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 201 ie.pmkid == NULL) 202 return; 203 204 for (i = 0; i < ie.num_pmkid; i++) { 205 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 206 ie.pmkid + i * PMKID_LEN, 207 NULL, NULL, 0); 208 if (pmksa_set == 0) { 209 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 210 break; 211 } 212 } 213 214 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 215 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 216 } 217 218 219 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 220 union wpa_event_data *data) 221 { 222 if (data == NULL) { 223 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 224 "event"); 225 return; 226 } 227 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 228 " index=%d preauth=%d", 229 MAC2STR(data->pmkid_candidate.bssid), 230 data->pmkid_candidate.index, 231 data->pmkid_candidate.preauth); 232 233 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 234 data->pmkid_candidate.index, 235 data->pmkid_candidate.preauth); 236 } 237 238 239 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 240 { 241 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 242 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 243 return 0; 244 245 #ifdef IEEE8021X_EAPOL 246 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 247 wpa_s->current_ssid && 248 !(wpa_s->current_ssid->eapol_flags & 249 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 250 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 251 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 252 * plaintext or static WEP keys). */ 253 return 0; 254 } 255 #endif /* IEEE8021X_EAPOL */ 256 257 return 1; 258 } 259 260 261 /** 262 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 263 * @wpa_s: pointer to wpa_supplicant data 264 * @ssid: Configuration data for the network 265 * Returns: 0 on success, -1 on failure 266 * 267 * This function is called when starting authentication with a network that is 268 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 269 */ 270 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 271 struct wpa_ssid *ssid) 272 { 273 #ifdef IEEE8021X_EAPOL 274 #ifdef PCSC_FUNCS 275 int aka = 0, sim = 0, type; 276 277 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 278 return 0; 279 280 if (ssid->eap.eap_methods == NULL) { 281 sim = 1; 282 aka = 1; 283 } else { 284 struct eap_method_type *eap = ssid->eap.eap_methods; 285 while (eap->vendor != EAP_VENDOR_IETF || 286 eap->method != EAP_TYPE_NONE) { 287 if (eap->vendor == EAP_VENDOR_IETF) { 288 if (eap->method == EAP_TYPE_SIM) 289 sim = 1; 290 else if (eap->method == EAP_TYPE_AKA || 291 eap->method == EAP_TYPE_AKA_PRIME) 292 aka = 1; 293 } 294 eap++; 295 } 296 } 297 298 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 299 sim = 0; 300 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 301 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 302 NULL) 303 aka = 0; 304 305 if (!sim && !aka) { 306 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 307 "use SIM, but neither EAP-SIM nor EAP-AKA are " 308 "enabled"); 309 return 0; 310 } 311 312 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 313 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 314 if (sim && aka) 315 type = SCARD_TRY_BOTH; 316 else if (aka) 317 type = SCARD_USIM_ONLY; 318 else 319 type = SCARD_GSM_SIM_ONLY; 320 321 wpa_s->scard = scard_init(type, NULL); 322 if (wpa_s->scard == NULL) { 323 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 324 "(pcsc-lite)"); 325 return -1; 326 } 327 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 328 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 329 #endif /* PCSC_FUNCS */ 330 #endif /* IEEE8021X_EAPOL */ 331 332 return 0; 333 } 334 335 336 #ifndef CONFIG_NO_SCAN_PROCESSING 337 static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 338 struct wpa_ssid *ssid) 339 { 340 int i, privacy = 0; 341 342 if (ssid->mixed_cell) 343 return 1; 344 345 #ifdef CONFIG_WPS 346 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 347 return 1; 348 #endif /* CONFIG_WPS */ 349 350 for (i = 0; i < NUM_WEP_KEYS; i++) { 351 if (ssid->wep_key_len[i]) { 352 privacy = 1; 353 break; 354 } 355 } 356 #ifdef IEEE8021X_EAPOL 357 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 358 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 359 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 360 privacy = 1; 361 #endif /* IEEE8021X_EAPOL */ 362 363 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 364 privacy = 1; 365 366 if (bss->caps & IEEE80211_CAP_PRIVACY) 367 return privacy; 368 return !privacy; 369 } 370 371 372 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 373 struct wpa_ssid *ssid, 374 struct wpa_bss *bss) 375 { 376 struct wpa_ie_data ie; 377 int proto_match = 0; 378 const u8 *rsn_ie, *wpa_ie; 379 int ret; 380 int wep_ok; 381 382 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 383 if (ret >= 0) 384 return ret; 385 386 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 387 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 388 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 389 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 390 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 391 392 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 393 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 394 proto_match++; 395 396 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 397 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 398 "failed"); 399 break; 400 } 401 402 if (wep_ok && 403 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 404 { 405 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 406 "in RSN IE"); 407 return 1; 408 } 409 410 if (!(ie.proto & ssid->proto)) { 411 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 412 "mismatch"); 413 break; 414 } 415 416 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 417 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 418 "cipher mismatch"); 419 break; 420 } 421 422 if (!(ie.group_cipher & ssid->group_cipher)) { 423 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 424 "cipher mismatch"); 425 break; 426 } 427 428 if (!(ie.key_mgmt & ssid->key_mgmt)) { 429 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 430 "mismatch"); 431 break; 432 } 433 434 #ifdef CONFIG_IEEE80211W 435 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 436 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? 437 wpa_s->conf->pmf : ssid->ieee80211w) == 438 MGMT_FRAME_PROTECTION_REQUIRED) { 439 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 440 "frame protection"); 441 break; 442 } 443 #endif /* CONFIG_IEEE80211W */ 444 445 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 446 return 1; 447 } 448 449 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 450 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 451 proto_match++; 452 453 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 454 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 455 "failed"); 456 break; 457 } 458 459 if (wep_ok && 460 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 461 { 462 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 463 "in WPA IE"); 464 return 1; 465 } 466 467 if (!(ie.proto & ssid->proto)) { 468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 469 "mismatch"); 470 break; 471 } 472 473 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 475 "cipher mismatch"); 476 break; 477 } 478 479 if (!(ie.group_cipher & ssid->group_cipher)) { 480 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 481 "cipher mismatch"); 482 break; 483 } 484 485 if (!(ie.key_mgmt & ssid->key_mgmt)) { 486 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 487 "mismatch"); 488 break; 489 } 490 491 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 492 return 1; 493 } 494 495 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 496 !rsn_ie) { 497 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 498 return 1; 499 } 500 501 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 502 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 503 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 504 return 0; 505 } 506 507 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 508 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 509 return 1; 510 } 511 512 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 513 "WPA/WPA2"); 514 515 return 0; 516 } 517 518 519 static int freq_allowed(int *freqs, int freq) 520 { 521 int i; 522 523 if (freqs == NULL) 524 return 1; 525 526 for (i = 0; freqs[i]; i++) 527 if (freqs[i] == freq) 528 return 1; 529 return 0; 530 } 531 532 533 static int ht_supported(const struct hostapd_hw_modes *mode) 534 { 535 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 536 /* 537 * The driver did not indicate whether it supports HT. Assume 538 * it does to avoid connection issues. 539 */ 540 return 1; 541 } 542 543 /* 544 * IEEE Std 802.11n-2009 20.1.1: 545 * An HT non-AP STA shall support all EQM rates for one spatial stream. 546 */ 547 return mode->mcs_set[0] == 0xff; 548 } 549 550 551 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 552 { 553 const struct hostapd_hw_modes *mode = NULL, *modes; 554 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 555 const u8 *rate_ie; 556 int i, j, k; 557 558 if (bss->freq == 0) 559 return 1; /* Cannot do matching without knowing band */ 560 561 modes = wpa_s->hw.modes; 562 if (modes == NULL) { 563 /* 564 * The driver does not provide any additional information 565 * about the utilized hardware, so allow the connection attempt 566 * to continue. 567 */ 568 return 1; 569 } 570 571 for (i = 0; i < wpa_s->hw.num_modes; i++) { 572 for (j = 0; j < modes[i].num_channels; j++) { 573 int freq = modes[i].channels[j].freq; 574 if (freq == bss->freq) { 575 if (mode && 576 mode->mode == HOSTAPD_MODE_IEEE80211G) 577 break; /* do not allow 802.11b replace 578 * 802.11g */ 579 mode = &modes[i]; 580 break; 581 } 582 } 583 } 584 585 if (mode == NULL) 586 return 0; 587 588 for (i = 0; i < (int) sizeof(scan_ie); i++) { 589 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 590 if (rate_ie == NULL) 591 continue; 592 593 for (j = 2; j < rate_ie[1] + 2; j++) { 594 int flagged = !!(rate_ie[j] & 0x80); 595 int r = (rate_ie[j] & 0x7f) * 5; 596 597 /* 598 * IEEE Std 802.11n-2009 7.3.2.2: 599 * The new BSS Membership selector value is encoded 600 * like a legacy basic rate, but it is not a rate and 601 * only indicates if the BSS members are required to 602 * support the mandatory features of Clause 20 [HT PHY] 603 * in order to join the BSS. 604 */ 605 if (flagged && ((rate_ie[j] & 0x7f) == 606 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 607 if (!ht_supported(mode)) { 608 wpa_dbg(wpa_s, MSG_DEBUG, 609 " hardware does not support " 610 "HT PHY"); 611 return 0; 612 } 613 continue; 614 } 615 616 if (!flagged) 617 continue; 618 619 /* check for legacy basic rates */ 620 for (k = 0; k < mode->num_rates; k++) { 621 if (mode->rates[k] == r) 622 break; 623 } 624 if (k == mode->num_rates) { 625 /* 626 * IEEE Std 802.11-2007 7.3.2.2 demands that in 627 * order to join a BSS all required rates 628 * have to be supported by the hardware. 629 */ 630 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 631 "not support required rate %d.%d Mbps", 632 r / 10, r % 10); 633 return 0; 634 } 635 } 636 } 637 638 return 1; 639 } 640 641 642 static int bss_is_dmg(struct wpa_bss *bss) 643 { 644 return bss->freq > 45000; 645 } 646 647 648 /* 649 * Test whether BSS is in an ESS. 650 * This is done differently in DMG (60 GHz) and non-DMG bands 651 */ 652 static int bss_is_ess(struct wpa_bss *bss) 653 { 654 if (bss_is_dmg(bss)) { 655 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 656 IEEE80211_CAP_DMG_AP; 657 } 658 659 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 660 IEEE80211_CAP_ESS); 661 } 662 663 664 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 665 int i, struct wpa_bss *bss, 666 struct wpa_ssid *group) 667 { 668 u8 wpa_ie_len, rsn_ie_len; 669 int wpa; 670 struct wpa_blacklist *e; 671 const u8 *ie; 672 struct wpa_ssid *ssid; 673 674 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 675 wpa_ie_len = ie ? ie[1] : 0; 676 677 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 678 rsn_ie_len = ie ? ie[1] : 0; 679 680 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 681 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 682 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 683 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 684 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 685 686 e = wpa_blacklist_get(wpa_s, bss->bssid); 687 if (e) { 688 int limit = 1; 689 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 690 /* 691 * When only a single network is enabled, we can 692 * trigger blacklisting on the first failure. This 693 * should not be done with multiple enabled networks to 694 * avoid getting forced to move into a worse ESS on 695 * single error if there are no other BSSes of the 696 * current ESS. 697 */ 698 limit = 0; 699 } 700 if (e->count > limit) { 701 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 702 "(count=%d limit=%d)", e->count, limit); 703 return NULL; 704 } 705 } 706 707 if (bss->ssid_len == 0) { 708 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 709 return NULL; 710 } 711 712 if (disallowed_bssid(wpa_s, bss->bssid)) { 713 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 714 return NULL; 715 } 716 717 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 718 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 719 return NULL; 720 } 721 722 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 723 724 for (ssid = group; ssid; ssid = ssid->pnext) { 725 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 726 int res; 727 728 if (wpas_network_disabled(wpa_s, ssid)) { 729 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 730 continue; 731 } 732 733 res = wpas_temp_disabled(wpa_s, ssid); 734 if (res > 0) { 735 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 736 "temporarily for %d second(s)", res); 737 continue; 738 } 739 740 #ifdef CONFIG_WPS 741 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 742 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 743 "(WPS)"); 744 continue; 745 } 746 747 if (wpa && ssid->ssid_len == 0 && 748 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 749 check_ssid = 0; 750 751 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 752 /* Only allow wildcard SSID match if an AP 753 * advertises active WPS operation that matches 754 * with our mode. */ 755 check_ssid = 1; 756 if (ssid->ssid_len == 0 && 757 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 758 check_ssid = 0; 759 } 760 #endif /* CONFIG_WPS */ 761 762 if (ssid->bssid_set && ssid->ssid_len == 0 && 763 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 764 check_ssid = 0; 765 766 if (check_ssid && 767 (bss->ssid_len != ssid->ssid_len || 768 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 769 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 770 continue; 771 } 772 773 if (ssid->bssid_set && 774 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 775 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 776 continue; 777 } 778 779 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 780 continue; 781 782 if (!wpa && 783 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 784 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 785 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 786 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 787 "not allowed"); 788 continue; 789 } 790 791 if (!wpa_supplicant_match_privacy(bss, ssid)) { 792 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 793 "mismatch"); 794 continue; 795 } 796 797 if (!bss_is_ess(bss)) { 798 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network"); 799 continue; 800 } 801 802 if (!freq_allowed(ssid->freq_list, bss->freq)) { 803 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 804 "allowed"); 805 continue; 806 } 807 808 if (!rate_match(wpa_s, bss)) { 809 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 810 "not match"); 811 continue; 812 } 813 814 #ifdef CONFIG_P2P 815 /* 816 * TODO: skip the AP if its P2P IE has Group Formation 817 * bit set in the P2P Group Capability Bitmap and we 818 * are not in Group Formation with that device. 819 */ 820 #endif /* CONFIG_P2P */ 821 822 /* Matching configuration found */ 823 return ssid; 824 } 825 826 /* No matching configuration found */ 827 return NULL; 828 } 829 830 831 static struct wpa_bss * 832 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 833 struct wpa_ssid *group, 834 struct wpa_ssid **selected_ssid) 835 { 836 unsigned int i; 837 838 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 839 group->priority); 840 841 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 842 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 843 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 844 if (!*selected_ssid) 845 continue; 846 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 847 " ssid='%s'", 848 MAC2STR(bss->bssid), 849 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 850 return bss; 851 } 852 853 return NULL; 854 } 855 856 857 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 858 struct wpa_ssid **selected_ssid) 859 { 860 struct wpa_bss *selected = NULL; 861 int prio; 862 863 if (wpa_s->last_scan_res == NULL || 864 wpa_s->last_scan_res_used == 0) 865 return NULL; /* no scan results from last update */ 866 867 while (selected == NULL) { 868 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 869 selected = wpa_supplicant_select_bss( 870 wpa_s, wpa_s->conf->pssid[prio], 871 selected_ssid); 872 if (selected) 873 break; 874 } 875 876 if (selected == NULL && wpa_s->blacklist && 877 !wpa_s->countermeasures) { 878 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 879 "blacklist and try again"); 880 wpa_blacklist_clear(wpa_s); 881 wpa_s->blacklist_cleared++; 882 } else if (selected == NULL) 883 break; 884 } 885 886 return selected; 887 } 888 889 890 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 891 int timeout_sec, int timeout_usec) 892 { 893 if (!wpa_supplicant_enabled_networks(wpa_s)) { 894 /* 895 * No networks are enabled; short-circuit request so 896 * we don't wait timeout seconds before transitioning 897 * to INACTIVE state. 898 */ 899 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 900 "since there are no enabled networks"); 901 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 902 #ifdef CONFIG_P2P 903 wpa_s->sta_scan_pending = 0; 904 #endif /* CONFIG_P2P */ 905 return; 906 } 907 908 wpa_s->scan_for_connection = 1; 909 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 910 } 911 912 913 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 914 struct wpa_bss *selected, 915 struct wpa_ssid *ssid) 916 { 917 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 918 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 919 "PBC session overlap"); 920 #ifdef CONFIG_P2P 921 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 922 return -1; 923 #endif /* CONFIG_P2P */ 924 925 #ifdef CONFIG_WPS 926 wpas_wps_cancel(wpa_s); 927 #endif /* CONFIG_WPS */ 928 return -1; 929 } 930 931 /* 932 * Do not trigger new association unless the BSSID has changed or if 933 * reassociation is requested. If we are in process of associating with 934 * the selected BSSID, do not trigger new attempt. 935 */ 936 if (wpa_s->reassociate || 937 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 938 ((wpa_s->wpa_state != WPA_ASSOCIATING && 939 wpa_s->wpa_state != WPA_AUTHENTICATING) || 940 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 941 0))) { 942 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 943 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 944 return 0; 945 } 946 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 947 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 948 " pending: " MACSTR " wpa_state: %s", 949 wpa_s->reassociate, MAC2STR(selected->bssid), 950 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 951 wpa_supplicant_state_txt(wpa_s->wpa_state)); 952 wpa_supplicant_associate(wpa_s, selected, ssid); 953 } else { 954 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 955 "selected AP"); 956 } 957 958 return 0; 959 } 960 961 962 static struct wpa_ssid * 963 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 964 { 965 int prio; 966 struct wpa_ssid *ssid; 967 968 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 969 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 970 { 971 if (wpas_network_disabled(wpa_s, ssid)) 972 continue; 973 if (ssid->mode == IEEE80211_MODE_IBSS || 974 ssid->mode == IEEE80211_MODE_AP) 975 return ssid; 976 } 977 } 978 return NULL; 979 } 980 981 982 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 983 * on BSS added and BSS changed events */ 984 static void wpa_supplicant_rsn_preauth_scan_results( 985 struct wpa_supplicant *wpa_s) 986 { 987 struct wpa_bss *bss; 988 989 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 990 return; 991 992 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 993 const u8 *ssid, *rsn; 994 995 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 996 if (ssid == NULL) 997 continue; 998 999 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1000 if (rsn == NULL) 1001 continue; 1002 1003 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1004 } 1005 1006 } 1007 1008 1009 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1010 struct wpa_bss *selected, 1011 struct wpa_ssid *ssid) 1012 { 1013 struct wpa_bss *current_bss = NULL; 1014 int min_diff; 1015 1016 if (wpa_s->reassociate) 1017 return 1; /* explicit request to reassociate */ 1018 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1019 return 1; /* we are not associated; continue */ 1020 if (wpa_s->current_ssid == NULL) 1021 return 1; /* unknown current SSID */ 1022 if (wpa_s->current_ssid != ssid) 1023 return 1; /* different network block */ 1024 1025 if (wpas_driver_bss_selection(wpa_s)) 1026 return 0; /* Driver-based roaming */ 1027 1028 if (wpa_s->current_ssid->ssid) 1029 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1030 wpa_s->current_ssid->ssid, 1031 wpa_s->current_ssid->ssid_len); 1032 if (!current_bss) 1033 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1034 1035 if (!current_bss) 1036 return 1; /* current BSS not seen in scan results */ 1037 1038 if (current_bss == selected) 1039 return 0; 1040 1041 if (selected->last_update_idx > current_bss->last_update_idx) 1042 return 1; /* current BSS not seen in the last scan */ 1043 1044 #ifndef CONFIG_NO_ROAMING 1045 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1046 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1047 MAC2STR(current_bss->bssid), current_bss->level); 1048 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1049 MAC2STR(selected->bssid), selected->level); 1050 1051 if (wpa_s->current_ssid->bssid_set && 1052 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1053 0) { 1054 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1055 "has preferred BSSID"); 1056 return 1; 1057 } 1058 1059 if (current_bss->level < 0 && current_bss->level > selected->level) { 1060 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1061 "signal level"); 1062 return 0; 1063 } 1064 1065 min_diff = 2; 1066 if (current_bss->level < 0) { 1067 if (current_bss->level < -85) 1068 min_diff = 1; 1069 else if (current_bss->level < -80) 1070 min_diff = 2; 1071 else if (current_bss->level < -75) 1072 min_diff = 3; 1073 else if (current_bss->level < -70) 1074 min_diff = 4; 1075 else 1076 min_diff = 5; 1077 } 1078 if (abs(current_bss->level - selected->level) < min_diff) { 1079 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1080 "in signal level"); 1081 return 0; 1082 } 1083 1084 return 1; 1085 #else /* CONFIG_NO_ROAMING */ 1086 return 0; 1087 #endif /* CONFIG_NO_ROAMING */ 1088 } 1089 1090 1091 /* Return != 0 if no scan results could be fetched or if scan results should not 1092 * be shared with other virtual interfaces. */ 1093 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1094 union wpa_event_data *data, 1095 int own_request) 1096 { 1097 struct wpa_scan_results *scan_res; 1098 int ap = 0; 1099 #ifndef CONFIG_NO_RANDOM_POOL 1100 size_t i, num; 1101 #endif /* CONFIG_NO_RANDOM_POOL */ 1102 1103 #ifdef CONFIG_AP 1104 if (wpa_s->ap_iface) 1105 ap = 1; 1106 #endif /* CONFIG_AP */ 1107 1108 wpa_supplicant_notify_scanning(wpa_s, 0); 1109 1110 #ifdef CONFIG_P2P 1111 if (own_request && wpa_s->global->p2p_cb_on_scan_complete && 1112 !wpa_s->global->p2p_disabled && 1113 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && 1114 !wpa_s->scan_res_handler) { 1115 wpa_s->global->p2p_cb_on_scan_complete = 0; 1116 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1117 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1118 "stopped scan processing"); 1119 wpa_s->sta_scan_pending = 1; 1120 wpa_supplicant_req_scan(wpa_s, 5, 0); 1121 return -1; 1122 } 1123 } 1124 wpa_s->sta_scan_pending = 0; 1125 #endif /* CONFIG_P2P */ 1126 1127 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1128 data ? &data->scan_info : 1129 NULL, 1); 1130 if (scan_res == NULL) { 1131 if (wpa_s->conf->ap_scan == 2 || ap || 1132 wpa_s->scan_res_handler == scan_only_handler) 1133 return -1; 1134 if (!own_request) 1135 return -1; 1136 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1137 "scanning again"); 1138 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1139 return -1; 1140 } 1141 1142 #ifndef CONFIG_NO_RANDOM_POOL 1143 num = scan_res->num; 1144 if (num > 10) 1145 num = 10; 1146 for (i = 0; i < num; i++) { 1147 u8 buf[5]; 1148 struct wpa_scan_res *res = scan_res->res[i]; 1149 buf[0] = res->bssid[5]; 1150 buf[1] = res->qual & 0xff; 1151 buf[2] = res->noise & 0xff; 1152 buf[3] = res->level & 0xff; 1153 buf[4] = res->tsf & 0xff; 1154 random_add_randomness(buf, sizeof(buf)); 1155 } 1156 #endif /* CONFIG_NO_RANDOM_POOL */ 1157 1158 if (own_request && wpa_s->scan_res_handler) { 1159 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1160 struct wpa_scan_results *scan_res); 1161 1162 scan_res_handler = wpa_s->scan_res_handler; 1163 wpa_s->scan_res_handler = NULL; 1164 scan_res_handler(wpa_s, scan_res); 1165 1166 wpa_scan_results_free(scan_res); 1167 return -2; 1168 } 1169 1170 if (ap) { 1171 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1172 #ifdef CONFIG_AP 1173 if (wpa_s->ap_iface->scan_cb) 1174 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1175 #endif /* CONFIG_AP */ 1176 wpa_scan_results_free(scan_res); 1177 return 0; 1178 } 1179 1180 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1181 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1182 wpas_notify_scan_results(wpa_s); 1183 1184 wpas_notify_scan_done(wpa_s, 1); 1185 1186 if (sme_proc_obss_scan(wpa_s) > 0) { 1187 wpa_scan_results_free(scan_res); 1188 return 0; 1189 } 1190 1191 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1192 wpa_scan_results_free(scan_res); 1193 return 0; 1194 } 1195 1196 if (autoscan_notify_scan(wpa_s, scan_res)) { 1197 wpa_scan_results_free(scan_res); 1198 return 0; 1199 } 1200 1201 if (wpa_s->disconnected) { 1202 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1203 wpa_scan_results_free(scan_res); 1204 return 0; 1205 } 1206 1207 if (!wpas_driver_bss_selection(wpa_s) && 1208 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1209 wpa_scan_results_free(scan_res); 1210 return 0; 1211 } 1212 1213 wpas_wps_update_ap_info(wpa_s, scan_res); 1214 1215 wpa_scan_results_free(scan_res); 1216 1217 return wpas_select_network_from_last_scan(wpa_s); 1218 } 1219 1220 1221 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s) 1222 { 1223 struct wpa_bss *selected; 1224 struct wpa_ssid *ssid = NULL; 1225 1226 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1227 1228 if (selected) { 1229 int skip; 1230 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1231 if (skip) { 1232 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1233 return 0; 1234 } 1235 1236 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1237 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1238 return -1; 1239 } 1240 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1241 /* 1242 * Do not notify other virtual radios of scan results since we do not 1243 * want them to start other associations at the same time. 1244 */ 1245 return 1; 1246 } else { 1247 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1248 ssid = wpa_supplicant_pick_new_network(wpa_s); 1249 if (ssid) { 1250 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1251 wpa_supplicant_associate(wpa_s, NULL, ssid); 1252 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1253 } else { 1254 int timeout_sec = wpa_s->scan_interval; 1255 int timeout_usec = 0; 1256 #ifdef CONFIG_P2P 1257 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1258 return 0; 1259 1260 if (wpa_s->p2p_in_provisioning) { 1261 /* 1262 * Use shorter wait during P2P Provisioning 1263 * state to speed up group formation. 1264 */ 1265 timeout_sec = 0; 1266 timeout_usec = 250000; 1267 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1268 timeout_usec); 1269 return 0; 1270 } 1271 #endif /* CONFIG_P2P */ 1272 #ifdef CONFIG_INTERWORKING 1273 if (wpa_s->conf->auto_interworking && 1274 wpa_s->conf->interworking && 1275 wpa_s->conf->cred) { 1276 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1277 "start ANQP fetch since no matching " 1278 "networks found"); 1279 wpa_s->network_select = 1; 1280 wpa_s->auto_network_select = 1; 1281 interworking_start_fetch_anqp(wpa_s); 1282 return 1; 1283 } 1284 #endif /* CONFIG_INTERWORKING */ 1285 if (wpa_supplicant_req_sched_scan(wpa_s)) 1286 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1287 timeout_usec); 1288 } 1289 } 1290 return 0; 1291 } 1292 1293 1294 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1295 union wpa_event_data *data) 1296 { 1297 const char *rn, *rn2; 1298 struct wpa_supplicant *ifs; 1299 1300 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) { 1301 /* 1302 * If no scan results could be fetched, then no need to 1303 * notify those interfaces that did not actually request 1304 * this scan. Similarly, if scan results started a new operation on this 1305 * interface, do not notify other interfaces to avoid concurrent 1306 * operations during a connection attempt. 1307 */ 1308 return; 1309 } 1310 1311 /* 1312 * Check other interfaces to see if they have the same radio-name. If 1313 * so, they get updated with this same scan info. 1314 */ 1315 if (!wpa_s->driver->get_radio_name) 1316 return; 1317 1318 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1319 if (rn == NULL || rn[0] == '\0') 1320 return; 1321 1322 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1323 "sharing same radio (%s) in event_scan_results", rn); 1324 1325 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1326 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1327 continue; 1328 1329 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1330 if (rn2 && os_strcmp(rn, rn2) == 0) { 1331 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1332 "sibling", ifs->ifname); 1333 _wpa_supplicant_event_scan_results(ifs, data, 0); 1334 } 1335 } 1336 } 1337 1338 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1339 1340 1341 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1342 { 1343 #ifdef CONFIG_NO_SCAN_PROCESSING 1344 return -1; 1345 #else /* CONFIG_NO_SCAN_PROCESSING */ 1346 struct os_time now; 1347 1348 if (wpa_s->last_scan_res_used <= 0) 1349 return -1; 1350 1351 os_get_time(&now); 1352 if (now.sec - wpa_s->last_scan.sec > 5) { 1353 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1354 return -1; 1355 } 1356 1357 return wpas_select_network_from_last_scan(wpa_s); 1358 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1359 } 1360 1361 #ifdef CONFIG_WNM 1362 1363 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1364 { 1365 struct wpa_supplicant *wpa_s = eloop_ctx; 1366 1367 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1368 return; 1369 1370 if (!wpa_s->no_keep_alive) { 1371 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1372 MAC2STR(wpa_s->bssid)); 1373 /* TODO: could skip this if normal data traffic has been sent */ 1374 /* TODO: Consider using some more appropriate data frame for 1375 * this */ 1376 if (wpa_s->l2) 1377 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1378 (u8 *) "", 0); 1379 } 1380 1381 #ifdef CONFIG_SME 1382 if (wpa_s->sme.bss_max_idle_period) { 1383 unsigned int msec; 1384 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1385 if (msec > 100) 1386 msec -= 100; 1387 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1388 wnm_bss_keep_alive, wpa_s, NULL); 1389 } 1390 #endif /* CONFIG_SME */ 1391 } 1392 1393 1394 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1395 const u8 *ies, size_t ies_len) 1396 { 1397 struct ieee802_11_elems elems; 1398 1399 if (ies == NULL) 1400 return; 1401 1402 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1403 return; 1404 1405 #ifdef CONFIG_SME 1406 if (elems.bss_max_idle_period) { 1407 unsigned int msec; 1408 wpa_s->sme.bss_max_idle_period = 1409 WPA_GET_LE16(elems.bss_max_idle_period); 1410 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1411 "TU)%s", wpa_s->sme.bss_max_idle_period, 1412 (elems.bss_max_idle_period[2] & 0x01) ? 1413 " (protected keep-live required)" : ""); 1414 if (wpa_s->sme.bss_max_idle_period == 0) 1415 wpa_s->sme.bss_max_idle_period = 1; 1416 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1417 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1418 /* msec times 1000 */ 1419 msec = wpa_s->sme.bss_max_idle_period * 1024; 1420 if (msec > 100) 1421 msec -= 100; 1422 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1423 wnm_bss_keep_alive, wpa_s, 1424 NULL); 1425 } 1426 } 1427 #endif /* CONFIG_SME */ 1428 } 1429 1430 #endif /* CONFIG_WNM */ 1431 1432 1433 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1434 { 1435 #ifdef CONFIG_WNM 1436 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1437 #endif /* CONFIG_WNM */ 1438 } 1439 1440 1441 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1442 union wpa_event_data *data) 1443 { 1444 int l, len, found = 0, wpa_found, rsn_found; 1445 const u8 *p; 1446 #ifdef CONFIG_IEEE80211R 1447 u8 bssid[ETH_ALEN]; 1448 #endif /* CONFIG_IEEE80211R */ 1449 1450 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1451 if (data->assoc_info.req_ies) 1452 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1453 data->assoc_info.req_ies_len); 1454 if (data->assoc_info.resp_ies) { 1455 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1456 data->assoc_info.resp_ies_len); 1457 #ifdef CONFIG_TDLS 1458 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1459 data->assoc_info.resp_ies_len); 1460 #endif /* CONFIG_TDLS */ 1461 #ifdef CONFIG_WNM 1462 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1463 data->assoc_info.resp_ies_len); 1464 #endif /* CONFIG_WNM */ 1465 } 1466 if (data->assoc_info.beacon_ies) 1467 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1468 data->assoc_info.beacon_ies, 1469 data->assoc_info.beacon_ies_len); 1470 if (data->assoc_info.freq) 1471 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1472 data->assoc_info.freq); 1473 1474 p = data->assoc_info.req_ies; 1475 l = data->assoc_info.req_ies_len; 1476 1477 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1478 while (p && l >= 2) { 1479 len = p[1] + 2; 1480 if (len > l) { 1481 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1482 p, l); 1483 break; 1484 } 1485 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1486 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1487 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1488 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1489 break; 1490 found = 1; 1491 wpa_find_assoc_pmkid(wpa_s); 1492 break; 1493 } 1494 l -= len; 1495 p += len; 1496 } 1497 if (!found && data->assoc_info.req_ies) 1498 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1499 1500 #ifdef CONFIG_IEEE80211R 1501 #ifdef CONFIG_SME 1502 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1503 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1504 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1505 data->assoc_info.resp_ies, 1506 data->assoc_info.resp_ies_len, 1507 bssid) < 0) { 1508 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1509 "Reassociation Response failed"); 1510 wpa_supplicant_deauthenticate( 1511 wpa_s, WLAN_REASON_INVALID_IE); 1512 return -1; 1513 } 1514 } 1515 1516 p = data->assoc_info.resp_ies; 1517 l = data->assoc_info.resp_ies_len; 1518 1519 #ifdef CONFIG_WPS_STRICT 1520 if (p && wpa_s->current_ssid && 1521 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1522 struct wpabuf *wps; 1523 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1524 if (wps == NULL) { 1525 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1526 "include WPS IE in (Re)Association Response"); 1527 return -1; 1528 } 1529 1530 if (wps_validate_assoc_resp(wps) < 0) { 1531 wpabuf_free(wps); 1532 wpa_supplicant_deauthenticate( 1533 wpa_s, WLAN_REASON_INVALID_IE); 1534 return -1; 1535 } 1536 wpabuf_free(wps); 1537 } 1538 #endif /* CONFIG_WPS_STRICT */ 1539 1540 /* Go through the IEs and make a copy of the MDIE, if present. */ 1541 while (p && l >= 2) { 1542 len = p[1] + 2; 1543 if (len > l) { 1544 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1545 p, l); 1546 break; 1547 } 1548 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1549 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1550 wpa_s->sme.ft_used = 1; 1551 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1552 MOBILITY_DOMAIN_ID_LEN); 1553 break; 1554 } 1555 l -= len; 1556 p += len; 1557 } 1558 #endif /* CONFIG_SME */ 1559 1560 /* Process FT when SME is in the driver */ 1561 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 1562 wpa_ft_is_completed(wpa_s->wpa)) { 1563 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1564 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1565 data->assoc_info.resp_ies, 1566 data->assoc_info.resp_ies_len, 1567 bssid) < 0) { 1568 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1569 "Reassociation Response failed"); 1570 wpa_supplicant_deauthenticate( 1571 wpa_s, WLAN_REASON_INVALID_IE); 1572 return -1; 1573 } 1574 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 1575 } 1576 1577 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1578 data->assoc_info.resp_ies_len); 1579 #endif /* CONFIG_IEEE80211R */ 1580 1581 /* WPA/RSN IE from Beacon/ProbeResp */ 1582 p = data->assoc_info.beacon_ies; 1583 l = data->assoc_info.beacon_ies_len; 1584 1585 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1586 */ 1587 wpa_found = rsn_found = 0; 1588 while (p && l >= 2) { 1589 len = p[1] + 2; 1590 if (len > l) { 1591 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1592 p, l); 1593 break; 1594 } 1595 if (!wpa_found && 1596 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1597 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1598 wpa_found = 1; 1599 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1600 } 1601 1602 if (!rsn_found && 1603 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1604 rsn_found = 1; 1605 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1606 } 1607 1608 l -= len; 1609 p += len; 1610 } 1611 1612 if (!wpa_found && data->assoc_info.beacon_ies) 1613 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1614 if (!rsn_found && data->assoc_info.beacon_ies) 1615 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1616 if (wpa_found || rsn_found) 1617 wpa_s->ap_ies_from_associnfo = 1; 1618 1619 if (wpa_s->assoc_freq && data->assoc_info.freq && 1620 wpa_s->assoc_freq != data->assoc_info.freq) { 1621 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1622 "%u to %u MHz", 1623 wpa_s->assoc_freq, data->assoc_info.freq); 1624 wpa_supplicant_update_scan_results(wpa_s); 1625 } 1626 1627 wpa_s->assoc_freq = data->assoc_info.freq; 1628 1629 return 0; 1630 } 1631 1632 1633 static struct wpa_bss * wpa_supplicant_get_new_bss( 1634 struct wpa_supplicant *wpa_s, const u8 *bssid) 1635 { 1636 struct wpa_bss *bss = NULL; 1637 struct wpa_ssid *ssid = wpa_s->current_ssid; 1638 1639 if (ssid->ssid_len > 0) 1640 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1641 if (!bss) 1642 bss = wpa_bss_get_bssid(wpa_s, bssid); 1643 1644 return bss; 1645 } 1646 1647 1648 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1649 { 1650 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1651 1652 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1653 return -1; 1654 1655 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1656 return 0; 1657 1658 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1659 WPA_IE_VENDOR_TYPE); 1660 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1661 1662 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1663 bss_wpa ? 2 + bss_wpa[1] : 0) || 1664 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1665 bss_rsn ? 2 + bss_rsn[1] : 0)) 1666 return -1; 1667 1668 return 0; 1669 } 1670 1671 1672 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1673 union wpa_event_data *data) 1674 { 1675 u8 bssid[ETH_ALEN]; 1676 int ft_completed; 1677 struct wpa_driver_capa capa; 1678 1679 #ifdef CONFIG_AP 1680 if (wpa_s->ap_iface) { 1681 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1682 data->assoc_info.addr, 1683 data->assoc_info.req_ies, 1684 data->assoc_info.req_ies_len, 1685 data->assoc_info.reassoc); 1686 return; 1687 } 1688 #endif /* CONFIG_AP */ 1689 1690 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1691 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1692 return; 1693 1694 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1695 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1696 wpa_supplicant_deauthenticate( 1697 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1698 return; 1699 } 1700 1701 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1702 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1703 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1704 MACSTR, MAC2STR(bssid)); 1705 random_add_randomness(bssid, ETH_ALEN); 1706 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1707 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1708 wpas_notify_bssid_changed(wpa_s); 1709 1710 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1711 wpa_clear_keys(wpa_s, bssid); 1712 } 1713 if (wpa_supplicant_select_config(wpa_s) < 0) { 1714 wpa_supplicant_deauthenticate( 1715 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1716 return; 1717 } 1718 if (wpa_s->current_ssid) { 1719 struct wpa_bss *bss = NULL; 1720 1721 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1722 if (!bss) { 1723 wpa_supplicant_update_scan_results(wpa_s); 1724 1725 /* Get the BSS from the new scan results */ 1726 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1727 } 1728 1729 if (bss) 1730 wpa_s->current_bss = bss; 1731 } 1732 1733 #ifdef ANDROID 1734 if (wpa_s->conf->ap_scan == 1) { 1735 #else 1736 if (wpa_s->conf->ap_scan == 1 && 1737 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1738 #endif 1739 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1740 wpa_msg(wpa_s, MSG_WARNING, 1741 "WPA/RSN IEs not updated"); 1742 } 1743 } 1744 1745 #ifdef CONFIG_SME 1746 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1747 wpa_s->sme.prev_bssid_set = 1; 1748 #endif /* CONFIG_SME */ 1749 1750 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1751 if (wpa_s->current_ssid) { 1752 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1753 * initialized before association, but for other modes, 1754 * initialize PC/SC here, if the current configuration needs 1755 * smartcard or SIM/USIM. */ 1756 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1757 } 1758 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1759 if (wpa_s->l2) 1760 l2_packet_notify_auth_start(wpa_s->l2); 1761 1762 /* 1763 * Set portEnabled first to FALSE in order to get EAP state machine out 1764 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1765 * state machine may transit to AUTHENTICATING state based on obsolete 1766 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1767 * AUTHENTICATED without ever giving chance to EAP state machine to 1768 * reset the state. 1769 */ 1770 if (!ft_completed) { 1771 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1772 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1773 } 1774 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1775 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1776 /* 802.1X::portControl = Auto */ 1777 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1778 wpa_s->eapol_received = 0; 1779 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1780 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1781 (wpa_s->current_ssid && 1782 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1783 wpa_supplicant_cancel_auth_timeout(wpa_s); 1784 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1785 } else if (!ft_completed) { 1786 /* Timeout for receiving the first EAPOL packet */ 1787 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1788 } 1789 wpa_supplicant_cancel_scan(wpa_s); 1790 1791 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1792 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1793 /* 1794 * We are done; the driver will take care of RSN 4-way 1795 * handshake. 1796 */ 1797 wpa_supplicant_cancel_auth_timeout(wpa_s); 1798 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1799 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1800 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1801 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1802 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1803 /* 1804 * The driver will take care of RSN 4-way handshake, so we need 1805 * to allow EAPOL supplicant to complete its work without 1806 * waiting for WPA supplicant. 1807 */ 1808 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1809 } else if (ft_completed) { 1810 /* 1811 * FT protocol completed - make sure EAPOL state machine ends 1812 * up in authenticated. 1813 */ 1814 wpa_supplicant_cancel_auth_timeout(wpa_s); 1815 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1816 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1817 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1818 } 1819 1820 wpa_s->last_eapol_matches_bssid = 0; 1821 1822 if (wpa_s->pending_eapol_rx) { 1823 struct os_time now, age; 1824 os_get_time(&now); 1825 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1826 if (age.sec == 0 && age.usec < 100000 && 1827 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1828 0) { 1829 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1830 "frame that was received just before " 1831 "association notification"); 1832 wpa_supplicant_rx_eapol( 1833 wpa_s, wpa_s->pending_eapol_rx_src, 1834 wpabuf_head(wpa_s->pending_eapol_rx), 1835 wpabuf_len(wpa_s->pending_eapol_rx)); 1836 } 1837 wpabuf_free(wpa_s->pending_eapol_rx); 1838 wpa_s->pending_eapol_rx = NULL; 1839 } 1840 1841 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1842 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1843 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1844 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1845 /* Set static WEP keys again */ 1846 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1847 } 1848 1849 #ifdef CONFIG_IBSS_RSN 1850 if (wpa_s->current_ssid && 1851 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1852 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1853 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1854 wpa_s->ibss_rsn == NULL) { 1855 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1856 if (!wpa_s->ibss_rsn) { 1857 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1858 wpa_supplicant_deauthenticate( 1859 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1860 return; 1861 } 1862 1863 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1864 } 1865 #endif /* CONFIG_IBSS_RSN */ 1866 1867 wpas_wps_notify_assoc(wpa_s, bssid); 1868 } 1869 1870 1871 static int disconnect_reason_recoverable(u16 reason_code) 1872 { 1873 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1874 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1875 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1876 } 1877 1878 1879 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1880 u16 reason_code, 1881 int locally_generated) 1882 { 1883 const u8 *bssid; 1884 1885 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1886 /* 1887 * At least Host AP driver and a Prism3 card seemed to be 1888 * generating streams of disconnected events when configuring 1889 * IBSS for WPA-None. Ignore them for now. 1890 */ 1891 return; 1892 } 1893 1894 bssid = wpa_s->bssid; 1895 if (is_zero_ether_addr(bssid)) 1896 bssid = wpa_s->pending_bssid; 1897 1898 if (!is_zero_ether_addr(bssid) || 1899 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1900 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1901 " reason=%d%s", 1902 MAC2STR(bssid), reason_code, 1903 locally_generated ? " locally_generated=1" : ""); 1904 } 1905 } 1906 1907 1908 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1909 int locally_generated) 1910 { 1911 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1912 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1913 return 0; /* Not in 4-way handshake with PSK */ 1914 1915 /* 1916 * It looks like connection was lost while trying to go through PSK 1917 * 4-way handshake. Filter out known disconnection cases that are caused 1918 * by something else than PSK mismatch to avoid confusing reports. 1919 */ 1920 1921 if (locally_generated) { 1922 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 1923 return 0; 1924 } 1925 1926 return 1; 1927 } 1928 1929 1930 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1931 u16 reason_code, 1932 int locally_generated) 1933 { 1934 const u8 *bssid; 1935 int authenticating; 1936 u8 prev_pending_bssid[ETH_ALEN]; 1937 struct wpa_bss *fast_reconnect = NULL; 1938 struct wpa_ssid *fast_reconnect_ssid = NULL; 1939 struct wpa_ssid *last_ssid; 1940 1941 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1942 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1943 1944 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1945 /* 1946 * At least Host AP driver and a Prism3 card seemed to be 1947 * generating streams of disconnected events when configuring 1948 * IBSS for WPA-None. Ignore them for now. 1949 */ 1950 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1951 "IBSS/WPA-None mode"); 1952 return; 1953 } 1954 1955 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 1956 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1957 "pre-shared key may be incorrect"); 1958 wpas_auth_failed(wpa_s); 1959 } 1960 if (!wpa_s->disconnected && 1961 (!wpa_s->auto_reconnect_disabled || 1962 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)) { 1963 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1964 "reconnect (wps=%d wpa_state=%d)", 1965 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1966 wpa_s->wpa_state); 1967 if (wpa_s->wpa_state == WPA_COMPLETED && 1968 wpa_s->current_ssid && 1969 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 1970 !locally_generated && 1971 disconnect_reason_recoverable(reason_code)) { 1972 /* 1973 * It looks like the AP has dropped association with 1974 * us, but could allow us to get back in. Try to 1975 * reconnect to the same BSS without full scan to save 1976 * time for some common cases. 1977 */ 1978 fast_reconnect = wpa_s->current_bss; 1979 fast_reconnect_ssid = wpa_s->current_ssid; 1980 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1981 #ifdef ANDROID 1982 wpa_supplicant_req_scan(wpa_s, 0, 500000); 1983 #else 1984 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1985 #endif 1986 else 1987 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 1988 "immediate scan"); 1989 } else { 1990 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 1991 "try to re-connect"); 1992 wpa_s->reassociate = 0; 1993 wpa_s->disconnected = 1; 1994 wpa_supplicant_cancel_sched_scan(wpa_s); 1995 } 1996 bssid = wpa_s->bssid; 1997 if (is_zero_ether_addr(bssid)) 1998 bssid = wpa_s->pending_bssid; 1999 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2000 wpas_connection_failed(wpa_s, bssid); 2001 wpa_sm_notify_disassoc(wpa_s->wpa); 2002 if (locally_generated) 2003 wpa_s->disconnect_reason = -reason_code; 2004 else 2005 wpa_s->disconnect_reason = reason_code; 2006 wpas_notify_disconnect_reason(wpa_s); 2007 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2008 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2009 wpa_s->keys_cleared = 0; 2010 wpa_clear_keys(wpa_s, wpa_s->bssid); 2011 } 2012 last_ssid = wpa_s->current_ssid; 2013 wpa_supplicant_mark_disassoc(wpa_s); 2014 2015 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2016 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2017 wpa_s->current_ssid = last_ssid; 2018 } 2019 2020 if (fast_reconnect) { 2021 #ifndef CONFIG_NO_SCAN_PROCESSING 2022 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2023 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2024 fast_reconnect_ssid) < 0) { 2025 /* Recover through full scan */ 2026 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2027 } 2028 #endif /* CONFIG_NO_SCAN_PROCESSING */ 2029 } 2030 } 2031 2032 2033 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2034 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2035 { 2036 struct wpa_supplicant *wpa_s = eloop_ctx; 2037 2038 if (!wpa_s->pending_mic_error_report) 2039 return; 2040 2041 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2042 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2043 wpa_s->pending_mic_error_report = 0; 2044 } 2045 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2046 2047 2048 static void 2049 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2050 union wpa_event_data *data) 2051 { 2052 int pairwise; 2053 struct os_time t; 2054 2055 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2056 pairwise = (data && data->michael_mic_failure.unicast); 2057 os_get_time(&t); 2058 if ((wpa_s->last_michael_mic_error && 2059 t.sec - wpa_s->last_michael_mic_error <= 60) || 2060 wpa_s->pending_mic_error_report) { 2061 if (wpa_s->pending_mic_error_report) { 2062 /* 2063 * Send the pending MIC error report immediately since 2064 * we are going to start countermeasures and AP better 2065 * do the same. 2066 */ 2067 wpa_sm_key_request(wpa_s->wpa, 1, 2068 wpa_s->pending_mic_error_pairwise); 2069 } 2070 2071 /* Send the new MIC error report immediately since we are going 2072 * to start countermeasures and AP better do the same. 2073 */ 2074 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2075 2076 /* initialize countermeasures */ 2077 wpa_s->countermeasures = 1; 2078 2079 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2080 2081 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2082 2083 /* 2084 * Need to wait for completion of request frame. We do not get 2085 * any callback for the message completion, so just wait a 2086 * short while and hope for the best. */ 2087 os_sleep(0, 10000); 2088 2089 wpa_drv_set_countermeasures(wpa_s, 1); 2090 wpa_supplicant_deauthenticate(wpa_s, 2091 WLAN_REASON_MICHAEL_MIC_FAILURE); 2092 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2093 wpa_s, NULL); 2094 eloop_register_timeout(60, 0, 2095 wpa_supplicant_stop_countermeasures, 2096 wpa_s, NULL); 2097 /* TODO: mark the AP rejected for 60 second. STA is 2098 * allowed to associate with another AP.. */ 2099 } else { 2100 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2101 if (wpa_s->mic_errors_seen) { 2102 /* 2103 * Reduce the effectiveness of Michael MIC error 2104 * reports as a means for attacking against TKIP if 2105 * more than one MIC failure is noticed with the same 2106 * PTK. We delay the transmission of the reports by a 2107 * random time between 0 and 60 seconds in order to 2108 * force the attacker wait 60 seconds before getting 2109 * the information on whether a frame resulted in a MIC 2110 * failure. 2111 */ 2112 u8 rval[4]; 2113 int sec; 2114 2115 if (os_get_random(rval, sizeof(rval)) < 0) 2116 sec = os_random() % 60; 2117 else 2118 sec = WPA_GET_BE32(rval) % 60; 2119 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2120 "report %d seconds", sec); 2121 wpa_s->pending_mic_error_report = 1; 2122 wpa_s->pending_mic_error_pairwise = pairwise; 2123 eloop_cancel_timeout( 2124 wpa_supplicant_delayed_mic_error_report, 2125 wpa_s, NULL); 2126 eloop_register_timeout( 2127 sec, os_random() % 1000000, 2128 wpa_supplicant_delayed_mic_error_report, 2129 wpa_s, NULL); 2130 } else { 2131 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2132 } 2133 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2134 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2135 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2136 } 2137 wpa_s->last_michael_mic_error = t.sec; 2138 wpa_s->mic_errors_seen++; 2139 } 2140 2141 2142 #ifdef CONFIG_TERMINATE_ONLASTIF 2143 static int any_interfaces(struct wpa_supplicant *head) 2144 { 2145 struct wpa_supplicant *wpa_s; 2146 2147 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2148 if (!wpa_s->interface_removed) 2149 return 1; 2150 return 0; 2151 } 2152 #endif /* CONFIG_TERMINATE_ONLASTIF */ 2153 2154 2155 static void 2156 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2157 union wpa_event_data *data) 2158 { 2159 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2160 return; 2161 2162 switch (data->interface_status.ievent) { 2163 case EVENT_INTERFACE_ADDED: 2164 if (!wpa_s->interface_removed) 2165 break; 2166 wpa_s->interface_removed = 0; 2167 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2168 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2169 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2170 "driver after interface was added"); 2171 } 2172 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2173 break; 2174 case EVENT_INTERFACE_REMOVED: 2175 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2176 wpa_s->interface_removed = 1; 2177 wpa_supplicant_mark_disassoc(wpa_s); 2178 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2179 l2_packet_deinit(wpa_s->l2); 2180 wpa_s->l2 = NULL; 2181 #ifdef CONFIG_IBSS_RSN 2182 ibss_rsn_deinit(wpa_s->ibss_rsn); 2183 wpa_s->ibss_rsn = NULL; 2184 #endif /* CONFIG_IBSS_RSN */ 2185 #ifdef CONFIG_TERMINATE_ONLASTIF 2186 /* check if last interface */ 2187 if (!any_interfaces(wpa_s->global->ifaces)) 2188 eloop_terminate(); 2189 #endif /* CONFIG_TERMINATE_ONLASTIF */ 2190 break; 2191 } 2192 } 2193 2194 2195 #ifdef CONFIG_PEERKEY 2196 static void 2197 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2198 union wpa_event_data *data) 2199 { 2200 if (data == NULL) 2201 return; 2202 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2203 } 2204 #endif /* CONFIG_PEERKEY */ 2205 2206 2207 #ifdef CONFIG_TDLS 2208 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2209 union wpa_event_data *data) 2210 { 2211 if (data == NULL) 2212 return; 2213 switch (data->tdls.oper) { 2214 case TDLS_REQUEST_SETUP: 2215 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2216 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2217 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2218 else 2219 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2220 break; 2221 case TDLS_REQUEST_TEARDOWN: 2222 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2223 data->tdls.reason_code); 2224 break; 2225 } 2226 } 2227 #endif /* CONFIG_TDLS */ 2228 2229 2230 #ifdef CONFIG_WNM 2231 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2232 union wpa_event_data *data) 2233 { 2234 if (data == NULL) 2235 return; 2236 switch (data->wnm.oper) { 2237 case WNM_OPER_SLEEP: 2238 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2239 "(action=%d, intval=%d)", 2240 data->wnm.sleep_action, data->wnm.sleep_intval); 2241 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2242 data->wnm.sleep_intval, NULL); 2243 break; 2244 } 2245 } 2246 #endif /* CONFIG_WNM */ 2247 2248 2249 #ifdef CONFIG_IEEE80211R 2250 static void 2251 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2252 union wpa_event_data *data) 2253 { 2254 if (data == NULL) 2255 return; 2256 2257 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2258 data->ft_ies.ies_len, 2259 data->ft_ies.ft_action, 2260 data->ft_ies.target_ap, 2261 data->ft_ies.ric_ies, 2262 data->ft_ies.ric_ies_len) < 0) { 2263 /* TODO: prevent MLME/driver from trying to associate? */ 2264 } 2265 } 2266 #endif /* CONFIG_IEEE80211R */ 2267 2268 2269 #ifdef CONFIG_IBSS_RSN 2270 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2271 union wpa_event_data *data) 2272 { 2273 struct wpa_ssid *ssid; 2274 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2275 return; 2276 if (data == NULL) 2277 return; 2278 ssid = wpa_s->current_ssid; 2279 if (ssid == NULL) 2280 return; 2281 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2282 return; 2283 2284 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2285 } 2286 #endif /* CONFIG_IBSS_RSN */ 2287 2288 2289 #ifdef CONFIG_IEEE80211R 2290 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2291 size_t len) 2292 { 2293 const u8 *sta_addr, *target_ap_addr; 2294 u16 status; 2295 2296 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2297 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2298 return; /* only SME case supported for now */ 2299 if (len < 1 + 2 * ETH_ALEN + 2) 2300 return; 2301 if (data[0] != 2) 2302 return; /* Only FT Action Response is supported for now */ 2303 sta_addr = data + 1; 2304 target_ap_addr = data + 1 + ETH_ALEN; 2305 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2306 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2307 MACSTR " TargetAP " MACSTR " status %u", 2308 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2309 2310 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2311 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2312 " in FT Action Response", MAC2STR(sta_addr)); 2313 return; 2314 } 2315 2316 if (status) { 2317 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2318 "failure (status code %d)", status); 2319 /* TODO: report error to FT code(?) */ 2320 return; 2321 } 2322 2323 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2324 len - (1 + 2 * ETH_ALEN + 2), 1, 2325 target_ap_addr, NULL, 0) < 0) 2326 return; 2327 2328 #ifdef CONFIG_SME 2329 { 2330 struct wpa_bss *bss; 2331 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2332 if (bss) 2333 wpa_s->sme.freq = bss->freq; 2334 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2335 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2336 WLAN_AUTH_FT); 2337 } 2338 #endif /* CONFIG_SME */ 2339 } 2340 #endif /* CONFIG_IEEE80211R */ 2341 2342 2343 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2344 struct unprot_deauth *e) 2345 { 2346 #ifdef CONFIG_IEEE80211W 2347 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2348 "dropped: " MACSTR " -> " MACSTR 2349 " (reason code %u)", 2350 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2351 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2352 #endif /* CONFIG_IEEE80211W */ 2353 } 2354 2355 2356 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2357 struct unprot_disassoc *e) 2358 { 2359 #ifdef CONFIG_IEEE80211W 2360 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2361 "dropped: " MACSTR " -> " MACSTR 2362 " (reason code %u)", 2363 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2364 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2365 #endif /* CONFIG_IEEE80211W */ 2366 } 2367 2368 2369 void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2370 union wpa_event_data *data) 2371 { 2372 struct wpa_supplicant *wpa_s = ctx; 2373 u16 reason_code = 0; 2374 int locally_generated = 0; 2375 2376 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2377 event != EVENT_INTERFACE_ENABLED && 2378 event != EVENT_INTERFACE_STATUS && 2379 event != EVENT_SCHED_SCAN_STOPPED) { 2380 wpa_dbg(wpa_s, MSG_DEBUG, 2381 "Ignore event %s (%d) while interface is disabled", 2382 event_to_string(event), event); 2383 return; 2384 } 2385 2386 #ifndef CONFIG_NO_STDOUT_DEBUG 2387 { 2388 int level = MSG_DEBUG; 2389 2390 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2391 const struct ieee80211_hdr *hdr; 2392 u16 fc; 2393 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2394 fc = le_to_host16(hdr->frame_control); 2395 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2396 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2397 level = MSG_EXCESSIVE; 2398 } 2399 2400 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2401 event_to_string(event), event); 2402 } 2403 #endif /* CONFIG_NO_STDOUT_DEBUG */ 2404 2405 switch (event) { 2406 case EVENT_AUTH: 2407 sme_event_auth(wpa_s, data); 2408 break; 2409 case EVENT_ASSOC: 2410 wpa_supplicant_event_assoc(wpa_s, data); 2411 break; 2412 case EVENT_DISASSOC: 2413 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2414 if (data) { 2415 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2416 data->disassoc_info.reason_code, 2417 data->disassoc_info.locally_generated ? 2418 " (locally generated)" : ""); 2419 if (data->disassoc_info.addr) 2420 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2421 MAC2STR(data->disassoc_info.addr)); 2422 } 2423 #ifdef CONFIG_AP 2424 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2425 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2426 data->disassoc_info.addr); 2427 break; 2428 } 2429 if (wpa_s->ap_iface) { 2430 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2431 "AP mode"); 2432 break; 2433 } 2434 #endif /* CONFIG_AP */ 2435 if (data) { 2436 reason_code = data->disassoc_info.reason_code; 2437 locally_generated = 2438 data->disassoc_info.locally_generated; 2439 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2440 data->disassoc_info.ie, 2441 data->disassoc_info.ie_len); 2442 #ifdef CONFIG_P2P 2443 wpas_p2p_disassoc_notif( 2444 wpa_s, data->disassoc_info.addr, reason_code, 2445 data->disassoc_info.ie, 2446 data->disassoc_info.ie_len, 2447 locally_generated); 2448 #endif /* CONFIG_P2P */ 2449 } 2450 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2451 sme_event_disassoc(wpa_s, data); 2452 /* fall through */ 2453 case EVENT_DEAUTH: 2454 if (event == EVENT_DEAUTH) { 2455 wpa_dbg(wpa_s, MSG_DEBUG, 2456 "Deauthentication notification"); 2457 if (data) { 2458 reason_code = data->deauth_info.reason_code; 2459 locally_generated = 2460 data->deauth_info.locally_generated; 2461 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2462 data->deauth_info.reason_code, 2463 data->deauth_info.locally_generated ? 2464 " (locally generated)" : ""); 2465 if (data->deauth_info.addr) { 2466 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2467 MACSTR, 2468 MAC2STR(data->deauth_info. 2469 addr)); 2470 } 2471 wpa_hexdump(MSG_DEBUG, 2472 "Deauthentication frame IE(s)", 2473 data->deauth_info.ie, 2474 data->deauth_info.ie_len); 2475 } 2476 } 2477 #ifdef CONFIG_AP 2478 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2479 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2480 data->deauth_info.addr); 2481 break; 2482 } 2483 if (wpa_s->ap_iface) { 2484 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2485 "AP mode"); 2486 break; 2487 } 2488 #endif /* CONFIG_AP */ 2489 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2490 locally_generated); 2491 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2492 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2493 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2494 eapol_sm_failed(wpa_s->eapol))) 2495 wpas_auth_failed(wpa_s); 2496 #ifdef CONFIG_P2P 2497 if (event == EVENT_DEAUTH && data) { 2498 if (wpas_p2p_deauth_notif(wpa_s, 2499 data->deauth_info.addr, 2500 reason_code, 2501 data->deauth_info.ie, 2502 data->deauth_info.ie_len, 2503 locally_generated) > 0) { 2504 /* 2505 * The interface was removed, so cannot 2506 * continue processing any additional 2507 * operations after this. 2508 */ 2509 break; 2510 } 2511 } 2512 #endif /* CONFIG_P2P */ 2513 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2514 locally_generated); 2515 break; 2516 case EVENT_MICHAEL_MIC_FAILURE: 2517 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2518 break; 2519 #ifndef CONFIG_NO_SCAN_PROCESSING 2520 case EVENT_SCAN_RESULTS: 2521 wpa_supplicant_event_scan_results(wpa_s, data); 2522 if (wpa_s->wpa_state != WPA_AUTHENTICATING && 2523 wpa_s->wpa_state != WPA_ASSOCIATING) 2524 wpas_p2p_continue_after_scan(wpa_s); 2525 break; 2526 #endif /* CONFIG_NO_SCAN_PROCESSING */ 2527 case EVENT_ASSOCINFO: 2528 wpa_supplicant_event_associnfo(wpa_s, data); 2529 break; 2530 case EVENT_INTERFACE_STATUS: 2531 wpa_supplicant_event_interface_status(wpa_s, data); 2532 break; 2533 case EVENT_PMKID_CANDIDATE: 2534 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2535 break; 2536 #ifdef CONFIG_PEERKEY 2537 case EVENT_STKSTART: 2538 wpa_supplicant_event_stkstart(wpa_s, data); 2539 break; 2540 #endif /* CONFIG_PEERKEY */ 2541 #ifdef CONFIG_TDLS 2542 case EVENT_TDLS: 2543 wpa_supplicant_event_tdls(wpa_s, data); 2544 break; 2545 #endif /* CONFIG_TDLS */ 2546 #ifdef CONFIG_WNM 2547 case EVENT_WNM: 2548 wpa_supplicant_event_wnm(wpa_s, data); 2549 break; 2550 #endif /* CONFIG_WNM */ 2551 #ifdef CONFIG_IEEE80211R 2552 case EVENT_FT_RESPONSE: 2553 wpa_supplicant_event_ft_response(wpa_s, data); 2554 break; 2555 #endif /* CONFIG_IEEE80211R */ 2556 #ifdef CONFIG_IBSS_RSN 2557 case EVENT_IBSS_RSN_START: 2558 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2559 break; 2560 #endif /* CONFIG_IBSS_RSN */ 2561 case EVENT_ASSOC_REJECT: 2562 if (data->assoc_reject.bssid) 2563 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2564 "bssid=" MACSTR " status_code=%u", 2565 MAC2STR(data->assoc_reject.bssid), 2566 data->assoc_reject.status_code); 2567 else 2568 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2569 "status_code=%u", 2570 data->assoc_reject.status_code); 2571 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2572 sme_event_assoc_reject(wpa_s, data); 2573 else { 2574 #ifdef ANDROID_P2P 2575 if(!wpa_s->current_ssid) { 2576 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2577 break; 2578 } 2579 /* If assoc reject is reported by the driver, then avoid 2580 * waiting for the authentication timeout. Cancel the 2581 * authentication timeout and retry the assoc. 2582 */ 2583 if(wpa_s->current_ssid->assoc_retry++ < 10) { 2584 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2585 wpa_s->current_ssid->assoc_retry); 2586 2587 wpa_supplicant_cancel_auth_timeout(wpa_s); 2588 2589 /* Clear the states */ 2590 wpa_sm_notify_disassoc(wpa_s->wpa); 2591 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2592 2593 wpa_s->reassociate = 1; 2594 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) { 2595 const u8 *bl_bssid = data->assoc_reject.bssid; 2596 if (!bl_bssid || is_zero_ether_addr(bl_bssid)) 2597 bl_bssid = wpa_s->pending_bssid; 2598 wpa_blacklist_add(wpa_s, bl_bssid); 2599 wpa_supplicant_req_scan(wpa_s, 0, 0); 2600 } else { 2601 wpa_supplicant_req_scan(wpa_s, 1, 0); 2602 } 2603 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2604 /* If we ASSOC_REJECT's hits threshold, disable the 2605 * network 2606 */ 2607 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2608 "Disabling the network"); 2609 wpa_s->current_ssid->assoc_retry = 0; 2610 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2611 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2612 } 2613 #else 2614 const u8 *bssid = data->assoc_reject.bssid; 2615 if (bssid == NULL || is_zero_ether_addr(bssid)) 2616 bssid = wpa_s->pending_bssid; 2617 wpas_connection_failed(wpa_s, bssid); 2618 wpa_supplicant_mark_disassoc(wpa_s); 2619 #endif /* ANDROID_P2P */ 2620 } 2621 break; 2622 case EVENT_AUTH_TIMED_OUT: 2623 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2624 sme_event_auth_timed_out(wpa_s, data); 2625 break; 2626 case EVENT_ASSOC_TIMED_OUT: 2627 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2628 sme_event_assoc_timed_out(wpa_s, data); 2629 break; 2630 case EVENT_TX_STATUS: 2631 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2632 " type=%d stype=%d", 2633 MAC2STR(data->tx_status.dst), 2634 data->tx_status.type, data->tx_status.stype); 2635 #ifdef CONFIG_AP 2636 if (wpa_s->ap_iface == NULL) { 2637 #ifdef CONFIG_OFFCHANNEL 2638 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2639 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2640 offchannel_send_action_tx_status( 2641 wpa_s, data->tx_status.dst, 2642 data->tx_status.data, 2643 data->tx_status.data_len, 2644 data->tx_status.ack ? 2645 OFFCHANNEL_SEND_ACTION_SUCCESS : 2646 OFFCHANNEL_SEND_ACTION_NO_ACK); 2647 #endif /* CONFIG_OFFCHANNEL */ 2648 break; 2649 } 2650 #endif /* CONFIG_AP */ 2651 #ifdef CONFIG_OFFCHANNEL 2652 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2653 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2654 /* 2655 * Catch TX status events for Action frames we sent via group 2656 * interface in GO mode. 2657 */ 2658 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2659 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2660 os_memcmp(wpa_s->parent->pending_action_dst, 2661 data->tx_status.dst, ETH_ALEN) == 0) { 2662 offchannel_send_action_tx_status( 2663 wpa_s->parent, data->tx_status.dst, 2664 data->tx_status.data, 2665 data->tx_status.data_len, 2666 data->tx_status.ack ? 2667 OFFCHANNEL_SEND_ACTION_SUCCESS : 2668 OFFCHANNEL_SEND_ACTION_NO_ACK); 2669 break; 2670 } 2671 #endif /* CONFIG_OFFCHANNEL */ 2672 #ifdef CONFIG_AP 2673 switch (data->tx_status.type) { 2674 case WLAN_FC_TYPE_MGMT: 2675 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2676 data->tx_status.data_len, 2677 data->tx_status.stype, 2678 data->tx_status.ack); 2679 break; 2680 case WLAN_FC_TYPE_DATA: 2681 ap_tx_status(wpa_s, data->tx_status.dst, 2682 data->tx_status.data, 2683 data->tx_status.data_len, 2684 data->tx_status.ack); 2685 break; 2686 } 2687 #endif /* CONFIG_AP */ 2688 break; 2689 #ifdef CONFIG_AP 2690 case EVENT_EAPOL_TX_STATUS: 2691 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2692 data->eapol_tx_status.data, 2693 data->eapol_tx_status.data_len, 2694 data->eapol_tx_status.ack); 2695 break; 2696 case EVENT_DRIVER_CLIENT_POLL_OK: 2697 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2698 break; 2699 case EVENT_RX_FROM_UNKNOWN: 2700 if (wpa_s->ap_iface == NULL) 2701 break; 2702 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2703 data->rx_from_unknown.wds); 2704 break; 2705 case EVENT_CH_SWITCH: 2706 if (!data) 2707 break; 2708 if (!wpa_s->ap_iface) { 2709 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2710 "event in non-AP mode"); 2711 break; 2712 } 2713 2714 #ifdef CONFIG_AP 2715 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2716 data->ch_switch.ht_enabled, 2717 data->ch_switch.ch_offset); 2718 #endif /* CONFIG_AP */ 2719 break; 2720 case EVENT_RX_MGMT: { 2721 u16 fc, stype; 2722 const struct ieee80211_mgmt *mgmt; 2723 2724 mgmt = (const struct ieee80211_mgmt *) 2725 data->rx_mgmt.frame; 2726 fc = le_to_host16(mgmt->frame_control); 2727 stype = WLAN_FC_GET_STYPE(fc); 2728 2729 if (wpa_s->ap_iface == NULL) { 2730 #ifdef CONFIG_P2P 2731 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2732 data->rx_mgmt.frame_len > 24) { 2733 const u8 *src = mgmt->sa; 2734 const u8 *ie = mgmt->u.probe_req.variable; 2735 size_t ie_len = data->rx_mgmt.frame_len - 2736 (mgmt->u.probe_req.variable - 2737 data->rx_mgmt.frame); 2738 wpas_p2p_probe_req_rx( 2739 wpa_s, src, mgmt->da, 2740 mgmt->bssid, ie, ie_len, 2741 data->rx_mgmt.ssi_signal); 2742 break; 2743 } 2744 #endif /* CONFIG_P2P */ 2745 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2746 "management frame in non-AP mode"); 2747 break; 2748 } 2749 2750 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2751 data->rx_mgmt.frame_len > 24) { 2752 const u8 *ie = mgmt->u.probe_req.variable; 2753 size_t ie_len = data->rx_mgmt.frame_len - 2754 (mgmt->u.probe_req.variable - 2755 data->rx_mgmt.frame); 2756 2757 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2758 mgmt->bssid, ie, ie_len, 2759 data->rx_mgmt.ssi_signal); 2760 } 2761 2762 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2763 break; 2764 } 2765 #endif /* CONFIG_AP */ 2766 case EVENT_RX_ACTION: 2767 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2768 " Category=%u DataLen=%d freq=%d MHz", 2769 MAC2STR(data->rx_action.sa), 2770 data->rx_action.category, (int) data->rx_action.len, 2771 data->rx_action.freq); 2772 #ifdef CONFIG_IEEE80211R 2773 if (data->rx_action.category == WLAN_ACTION_FT) { 2774 ft_rx_action(wpa_s, data->rx_action.data, 2775 data->rx_action.len); 2776 break; 2777 } 2778 #endif /* CONFIG_IEEE80211R */ 2779 #ifdef CONFIG_IEEE80211W 2780 #ifdef CONFIG_SME 2781 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2782 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2783 data->rx_action.data, 2784 data->rx_action.len); 2785 break; 2786 } 2787 #endif /* CONFIG_SME */ 2788 #endif /* CONFIG_IEEE80211W */ 2789 #ifdef CONFIG_WNM 2790 if (data->rx_action.category == WLAN_ACTION_WNM) { 2791 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2792 break; 2793 } 2794 #endif /* CONFIG_WNM */ 2795 #ifdef CONFIG_GAS 2796 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2797 gas_query_rx(wpa_s->gas, data->rx_action.da, 2798 data->rx_action.sa, data->rx_action.bssid, 2799 data->rx_action.data, data->rx_action.len, 2800 data->rx_action.freq) == 0) 2801 break; 2802 #endif /* CONFIG_GAS */ 2803 #ifdef CONFIG_TDLS 2804 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2805 data->rx_action.len >= 4 && 2806 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2807 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2808 "Response from " MACSTR, 2809 MAC2STR(data->rx_action.sa)); 2810 break; 2811 } 2812 #endif /* CONFIG_TDLS */ 2813 #ifdef CONFIG_P2P 2814 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2815 data->rx_action.sa, 2816 data->rx_action.bssid, 2817 data->rx_action.category, 2818 data->rx_action.data, 2819 data->rx_action.len, data->rx_action.freq); 2820 #endif /* CONFIG_P2P */ 2821 break; 2822 case EVENT_RX_PROBE_REQ: 2823 if (data->rx_probe_req.sa == NULL || 2824 data->rx_probe_req.ie == NULL) 2825 break; 2826 #ifdef CONFIG_AP 2827 if (wpa_s->ap_iface) { 2828 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2829 data->rx_probe_req.sa, 2830 data->rx_probe_req.da, 2831 data->rx_probe_req.bssid, 2832 data->rx_probe_req.ie, 2833 data->rx_probe_req.ie_len, 2834 data->rx_probe_req.ssi_signal); 2835 break; 2836 } 2837 #endif /* CONFIG_AP */ 2838 #ifdef CONFIG_P2P 2839 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2840 data->rx_probe_req.da, 2841 data->rx_probe_req.bssid, 2842 data->rx_probe_req.ie, 2843 data->rx_probe_req.ie_len, 2844 data->rx_probe_req.ssi_signal); 2845 #endif /* CONFIG_P2P */ 2846 break; 2847 case EVENT_REMAIN_ON_CHANNEL: 2848 #ifdef CONFIG_OFFCHANNEL 2849 offchannel_remain_on_channel_cb( 2850 wpa_s, data->remain_on_channel.freq, 2851 data->remain_on_channel.duration); 2852 #endif /* CONFIG_OFFCHANNEL */ 2853 #ifdef CONFIG_P2P 2854 wpas_p2p_remain_on_channel_cb( 2855 wpa_s, data->remain_on_channel.freq, 2856 data->remain_on_channel.duration); 2857 #endif /* CONFIG_P2P */ 2858 break; 2859 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2860 #ifdef CONFIG_OFFCHANNEL 2861 offchannel_cancel_remain_on_channel_cb( 2862 wpa_s, data->remain_on_channel.freq); 2863 #endif /* CONFIG_OFFCHANNEL */ 2864 #ifdef CONFIG_P2P 2865 wpas_p2p_cancel_remain_on_channel_cb( 2866 wpa_s, data->remain_on_channel.freq); 2867 #endif /* CONFIG_P2P */ 2868 break; 2869 #ifdef CONFIG_P2P 2870 case EVENT_P2P_DEV_FOUND: { 2871 struct p2p_peer_info peer_info; 2872 2873 os_memset(&peer_info, 0, sizeof(peer_info)); 2874 if (data->p2p_dev_found.dev_addr) 2875 os_memcpy(peer_info.p2p_device_addr, 2876 data->p2p_dev_found.dev_addr, ETH_ALEN); 2877 if (data->p2p_dev_found.pri_dev_type) 2878 os_memcpy(peer_info.pri_dev_type, 2879 data->p2p_dev_found.pri_dev_type, 2880 sizeof(peer_info.pri_dev_type)); 2881 if (data->p2p_dev_found.dev_name) 2882 os_strlcpy(peer_info.device_name, 2883 data->p2p_dev_found.dev_name, 2884 sizeof(peer_info.device_name)); 2885 peer_info.config_methods = data->p2p_dev_found.config_methods; 2886 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2887 peer_info.group_capab = data->p2p_dev_found.group_capab; 2888 2889 /* 2890 * FIX: new_device=1 is not necessarily correct. We should 2891 * maintain a P2P peer database in wpa_supplicant and update 2892 * this information based on whether the peer is truly new. 2893 */ 2894 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2895 break; 2896 } 2897 case EVENT_P2P_GO_NEG_REQ_RX: 2898 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2899 data->p2p_go_neg_req_rx.dev_passwd_id); 2900 break; 2901 case EVENT_P2P_GO_NEG_COMPLETED: 2902 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2903 break; 2904 case EVENT_P2P_PROV_DISC_REQUEST: 2905 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2906 data->p2p_prov_disc_req.config_methods, 2907 data->p2p_prov_disc_req.dev_addr, 2908 data->p2p_prov_disc_req.pri_dev_type, 2909 data->p2p_prov_disc_req.dev_name, 2910 data->p2p_prov_disc_req.supp_config_methods, 2911 data->p2p_prov_disc_req.dev_capab, 2912 data->p2p_prov_disc_req.group_capab, 2913 NULL, 0); 2914 break; 2915 case EVENT_P2P_PROV_DISC_RESPONSE: 2916 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2917 data->p2p_prov_disc_resp.config_methods); 2918 break; 2919 case EVENT_P2P_SD_REQUEST: 2920 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2921 data->p2p_sd_req.sa, 2922 data->p2p_sd_req.dialog_token, 2923 data->p2p_sd_req.update_indic, 2924 data->p2p_sd_req.tlvs, 2925 data->p2p_sd_req.tlvs_len); 2926 break; 2927 case EVENT_P2P_SD_RESPONSE: 2928 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2929 data->p2p_sd_resp.update_indic, 2930 data->p2p_sd_resp.tlvs, 2931 data->p2p_sd_resp.tlvs_len); 2932 break; 2933 #endif /* CONFIG_P2P */ 2934 case EVENT_EAPOL_RX: 2935 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2936 data->eapol_rx.data, 2937 data->eapol_rx.data_len); 2938 break; 2939 case EVENT_SIGNAL_CHANGE: 2940 bgscan_notify_signal_change( 2941 wpa_s, data->signal_change.above_threshold, 2942 data->signal_change.current_signal, 2943 data->signal_change.current_noise, 2944 data->signal_change.current_txrate); 2945 break; 2946 case EVENT_INTERFACE_ENABLED: 2947 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2948 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2949 wpa_supplicant_update_mac_addr(wpa_s); 2950 #ifdef CONFIG_AP 2951 if (!wpa_s->ap_iface) { 2952 wpa_supplicant_set_state(wpa_s, 2953 WPA_DISCONNECTED); 2954 wpa_supplicant_req_scan(wpa_s, 0, 0); 2955 } else 2956 wpa_supplicant_set_state(wpa_s, 2957 WPA_COMPLETED); 2958 #else /* CONFIG_AP */ 2959 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2960 wpa_supplicant_req_scan(wpa_s, 0, 0); 2961 #endif /* CONFIG_AP */ 2962 } 2963 break; 2964 case EVENT_INTERFACE_DISABLED: 2965 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2966 wpa_supplicant_mark_disassoc(wpa_s); 2967 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2968 break; 2969 case EVENT_CHANNEL_LIST_CHANGED: 2970 if (wpa_s->drv_priv == NULL) 2971 break; /* Ignore event during drv initialization */ 2972 2973 free_hw_features(wpa_s); 2974 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 2975 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 2976 2977 #ifdef CONFIG_P2P 2978 wpas_p2p_update_channel_list(wpa_s); 2979 #endif /* CONFIG_P2P */ 2980 break; 2981 case EVENT_INTERFACE_UNAVAILABLE: 2982 #ifdef CONFIG_P2P 2983 wpas_p2p_interface_unavailable(wpa_s); 2984 #endif /* CONFIG_P2P */ 2985 break; 2986 case EVENT_BEST_CHANNEL: 2987 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 2988 "(%d %d %d)", 2989 data->best_chan.freq_24, data->best_chan.freq_5, 2990 data->best_chan.freq_overall); 2991 wpa_s->best_24_freq = data->best_chan.freq_24; 2992 wpa_s->best_5_freq = data->best_chan.freq_5; 2993 wpa_s->best_overall_freq = data->best_chan.freq_overall; 2994 #ifdef CONFIG_P2P 2995 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 2996 data->best_chan.freq_5, 2997 data->best_chan.freq_overall); 2998 #endif /* CONFIG_P2P */ 2999 break; 3000 case EVENT_UNPROT_DEAUTH: 3001 wpa_supplicant_event_unprot_deauth(wpa_s, 3002 &data->unprot_deauth); 3003 break; 3004 case EVENT_UNPROT_DISASSOC: 3005 wpa_supplicant_event_unprot_disassoc(wpa_s, 3006 &data->unprot_disassoc); 3007 break; 3008 case EVENT_STATION_LOW_ACK: 3009 #ifdef CONFIG_AP 3010 if (wpa_s->ap_iface && data) 3011 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3012 data->low_ack.addr); 3013 #endif /* CONFIG_AP */ 3014 #ifdef CONFIG_TDLS 3015 if (data) 3016 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 3017 #endif /* CONFIG_TDLS */ 3018 break; 3019 case EVENT_IBSS_PEER_LOST: 3020 #ifdef CONFIG_IBSS_RSN 3021 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3022 #endif /* CONFIG_IBSS_RSN */ 3023 break; 3024 case EVENT_DRIVER_GTK_REKEY: 3025 if (os_memcmp(data->driver_gtk_rekey.bssid, 3026 wpa_s->bssid, ETH_ALEN)) 3027 break; 3028 if (!wpa_s->wpa) 3029 break; 3030 wpa_sm_update_replay_ctr(wpa_s->wpa, 3031 data->driver_gtk_rekey.replay_ctr); 3032 break; 3033 case EVENT_SCHED_SCAN_STOPPED: 3034 wpa_s->sched_scanning = 0; 3035 wpa_supplicant_notify_scanning(wpa_s, 0); 3036 3037 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3038 break; 3039 3040 /* 3041 * If we timed out, start a new sched scan to continue 3042 * searching for more SSIDs. 3043 */ 3044 if (wpa_s->sched_scan_timed_out) 3045 wpa_supplicant_req_sched_scan(wpa_s); 3046 break; 3047 case EVENT_WPS_BUTTON_PUSHED: 3048 #ifdef CONFIG_WPS 3049 wpas_wps_start_pbc(wpa_s, NULL, 0); 3050 #endif /* CONFIG_WPS */ 3051 break; 3052 case EVENT_CONNECT_FAILED_REASON: 3053 #ifdef CONFIG_AP 3054 if (!wpa_s->ap_iface || !data) 3055 break; 3056 hostapd_event_connect_failed_reason( 3057 wpa_s->ap_iface->bss[0], 3058 data->connect_failed_reason.addr, 3059 data->connect_failed_reason.code); 3060 #endif /* CONFIG_AP */ 3061 break; 3062 default: 3063 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3064 break; 3065 } 3066 } 3067
