1/* 2 * WPA Supplicant 3 * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 * 8 * This file implements functions for registering and unregistering 9 * %wpa_supplicant interfaces. In addition, this file contains number of 10 * functions for managing network connections. 11 */ 12 13#include "includes.h" 14#ifdef CONFIG_MATCH_IFACE 15#include <net/if.h> 16#include <fnmatch.h> 17#endif /* CONFIG_MATCH_IFACE */ 18 19#include "common.h" 20#include "crypto/random.h" 21#include "crypto/sha1.h" 22#include "eapol_supp/eapol_supp_sm.h" 23#include "eap_peer/eap.h" 24#include "eap_peer/eap_proxy.h" 25#include "eap_server/eap_methods.h" 26#include "rsn_supp/wpa.h" 27#include "eloop.h" 28#include "config.h" 29#include "utils/ext_password.h" 30#include "l2_packet/l2_packet.h" 31#include "wpa_supplicant_i.h" 32#include "driver_i.h" 33#include "ctrl_iface.h" 34#include "pcsc_funcs.h" 35#include "common/version.h" 36#include "rsn_supp/preauth.h" 37#include "rsn_supp/pmksa_cache.h" 38#include "common/wpa_ctrl.h" 39#include "common/ieee802_11_common.h" 40#include "common/ieee802_11_defs.h" 41#include "common/hw_features_common.h" 42#include "common/gas_server.h" 43#include "common/dpp.h" 44#include "p2p/p2p.h" 45#include "fst/fst.h" 46#include "blacklist.h" 47#include "wpas_glue.h" 48#include "wps_supplicant.h" 49#include "ibss_rsn.h" 50#include "sme.h" 51#include "gas_query.h" 52#include "ap.h" 53#include "p2p_supplicant.h" 54#include "wifi_display.h" 55#include "notify.h" 56#include "bgscan.h" 57#include "autoscan.h" 58#include "bss.h" 59#include "scan.h" 60#include "offchannel.h" 61#include "hs20_supplicant.h" 62#include "wnm_sta.h" 63#include "wpas_kay.h" 64#include "mesh.h" 65#include "dpp_supplicant.h" 66#ifdef CONFIG_MESH 67#include "ap/ap_config.h" 68#include "ap/hostapd.h" 69#endif /* CONFIG_MESH */ 70 71const char *const wpa_supplicant_version = 72"wpa_supplicant v" VERSION_STR "\n" 73"Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi> and contributors"; 74 75const char *const wpa_supplicant_license = 76"This software may be distributed under the terms of the BSD license.\n" 77"See README for more details.\n" 78#ifdef EAP_TLS_OPENSSL 79"\nThis product includes software developed by the OpenSSL Project\n" 80"for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" 81#endif /* EAP_TLS_OPENSSL */ 82; 83 84#ifndef CONFIG_NO_STDOUT_DEBUG 85/* Long text divided into parts in order to fit in C89 strings size limits. */ 86const char *const wpa_supplicant_full_license1 = 87""; 88const char *const wpa_supplicant_full_license2 = 89"This software may be distributed under the terms of the BSD license.\n" 90"\n" 91"Redistribution and use in source and binary forms, with or without\n" 92"modification, are permitted provided that the following conditions are\n" 93"met:\n" 94"\n"; 95const char *const wpa_supplicant_full_license3 = 96"1. Redistributions of source code must retain the above copyright\n" 97" notice, this list of conditions and the following disclaimer.\n" 98"\n" 99"2. Redistributions in binary form must reproduce the above copyright\n" 100" notice, this list of conditions and the following disclaimer in the\n" 101" documentation and/or other materials provided with the distribution.\n" 102"\n"; 103const char *const wpa_supplicant_full_license4 = 104"3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" 105" names of its contributors may be used to endorse or promote products\n" 106" derived from this software without specific prior written permission.\n" 107"\n" 108"THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" 109"\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" 110"LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" 111"A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; 112const char *const wpa_supplicant_full_license5 = 113"OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" 114"SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" 115"LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" 116"DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" 117"THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" 118"(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" 119"OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" 120"\n"; 121#endif /* CONFIG_NO_STDOUT_DEBUG */ 122 123 124static void wpa_bss_tmp_disallow_timeout(void *eloop_ctx, void *timeout_ctx); 125#if defined(CONFIG_FILS) && defined(IEEE8021X_EAPOL) 126static void wpas_update_fils_connect_params(struct wpa_supplicant *wpa_s); 127#endif /* CONFIG_FILS && IEEE8021X_EAPOL */ 128 129 130/* Configure default/group WEP keys for static WEP */ 131int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) 132{ 133 int i, set = 0; 134 135 for (i = 0; i < NUM_WEP_KEYS; i++) { 136 if (ssid->wep_key_len[i] == 0) 137 continue; 138 139 set = 1; 140 wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, 141 i, i == ssid->wep_tx_keyidx, NULL, 0, 142 ssid->wep_key[i], ssid->wep_key_len[i]); 143 } 144 145 return set; 146} 147 148 149int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, 150 struct wpa_ssid *ssid) 151{ 152 u8 key[32]; 153 size_t keylen; 154 enum wpa_alg alg; 155 u8 seq[6] = { 0 }; 156 int ret; 157 158 /* IBSS/WPA-None uses only one key (Group) for both receiving and 159 * sending unicast and multicast packets. */ 160 161 if (ssid->mode != WPAS_MODE_IBSS) { 162 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " 163 "IBSS/ad-hoc) for WPA-None", ssid->mode); 164 return -1; 165 } 166 167 if (!ssid->psk_set) { 168 wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " 169 "WPA-None"); 170 return -1; 171 } 172 173 switch (wpa_s->group_cipher) { 174 case WPA_CIPHER_CCMP: 175 os_memcpy(key, ssid->psk, 16); 176 keylen = 16; 177 alg = WPA_ALG_CCMP; 178 break; 179 case WPA_CIPHER_GCMP: 180 os_memcpy(key, ssid->psk, 16); 181 keylen = 16; 182 alg = WPA_ALG_GCMP; 183 break; 184 case WPA_CIPHER_TKIP: 185 /* WPA-None uses the same Michael MIC key for both TX and RX */ 186 os_memcpy(key, ssid->psk, 16 + 8); 187 os_memcpy(key + 16 + 8, ssid->psk + 16, 8); 188 keylen = 32; 189 alg = WPA_ALG_TKIP; 190 break; 191 default: 192 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " 193 "WPA-None", wpa_s->group_cipher); 194 return -1; 195 } 196 197 /* TODO: should actually remember the previously used seq#, both for TX 198 * and RX from each STA.. */ 199 200 ret = wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); 201 os_memset(key, 0, sizeof(key)); 202 return ret; 203} 204 205 206static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) 207{ 208 struct wpa_supplicant *wpa_s = eloop_ctx; 209 const u8 *bssid = wpa_s->bssid; 210 if (!is_zero_ether_addr(wpa_s->pending_bssid) && 211 (wpa_s->wpa_state == WPA_AUTHENTICATING || 212 wpa_s->wpa_state == WPA_ASSOCIATING)) 213 bssid = wpa_s->pending_bssid; 214 wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", 215 MAC2STR(bssid)); 216 wpa_blacklist_add(wpa_s, bssid); 217 wpa_sm_notify_disassoc(wpa_s->wpa); 218 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 219 wpa_s->reassociate = 1; 220 221 /* 222 * If we timed out, the AP or the local radio may be busy. 223 * So, wait a second until scanning again. 224 */ 225 wpa_supplicant_req_scan(wpa_s, 1, 0); 226} 227 228 229/** 230 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication 231 * @wpa_s: Pointer to wpa_supplicant data 232 * @sec: Number of seconds after which to time out authentication 233 * @usec: Number of microseconds after which to time out authentication 234 * 235 * This function is used to schedule a timeout for the current authentication 236 * attempt. 237 */ 238void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, 239 int sec, int usec) 240{ 241 if (wpa_s->conf->ap_scan == 0 && 242 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) 243 return; 244 245 wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " 246 "%d usec", sec, usec); 247 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); 248 wpa_s->last_auth_timeout_sec = sec; 249 eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); 250} 251 252 253/* 254 * wpas_auth_timeout_restart - Restart and change timeout for authentication 255 * @wpa_s: Pointer to wpa_supplicant data 256 * @sec_diff: difference in seconds applied to original timeout value 257 */ 258void wpas_auth_timeout_restart(struct wpa_supplicant *wpa_s, int sec_diff) 259{ 260 int new_sec = wpa_s->last_auth_timeout_sec + sec_diff; 261 262 if (eloop_is_timeout_registered(wpa_supplicant_timeout, wpa_s, NULL)) { 263 wpa_dbg(wpa_s, MSG_DEBUG, 264 "Authentication timeout restart: %d sec", new_sec); 265 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); 266 eloop_register_timeout(new_sec, 0, wpa_supplicant_timeout, 267 wpa_s, NULL); 268 } 269} 270 271 272/** 273 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout 274 * @wpa_s: Pointer to wpa_supplicant data 275 * 276 * This function is used to cancel authentication timeout scheduled with 277 * wpa_supplicant_req_auth_timeout() and it is called when authentication has 278 * been completed. 279 */ 280void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) 281{ 282 wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); 283 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); 284 wpa_blacklist_del(wpa_s, wpa_s->bssid); 285 os_free(wpa_s->last_con_fail_realm); 286 wpa_s->last_con_fail_realm = NULL; 287 wpa_s->last_con_fail_realm_len = 0; 288} 289 290 291/** 292 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine 293 * @wpa_s: Pointer to wpa_supplicant data 294 * 295 * This function is used to configure EAPOL state machine based on the selected 296 * authentication mode. 297 */ 298void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) 299{ 300#ifdef IEEE8021X_EAPOL 301 struct eapol_config eapol_conf; 302 struct wpa_ssid *ssid = wpa_s->current_ssid; 303 304#ifdef CONFIG_IBSS_RSN 305 if (ssid->mode == WPAS_MODE_IBSS && 306 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 307 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { 308 /* 309 * RSN IBSS authentication is per-STA and we can disable the 310 * per-BSSID EAPOL authentication. 311 */ 312 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); 313 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 314 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); 315 return; 316 } 317#endif /* CONFIG_IBSS_RSN */ 318 319 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 320 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); 321 322 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 323 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 324 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); 325 else 326 eapol_sm_notify_portControl(wpa_s->eapol, Auto); 327 328 os_memset(&eapol_conf, 0, sizeof(eapol_conf)); 329 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 330 eapol_conf.accept_802_1x_keys = 1; 331 eapol_conf.required_keys = 0; 332 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { 333 eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; 334 } 335 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { 336 eapol_conf.required_keys |= 337 EAPOL_REQUIRE_KEY_BROADCAST; 338 } 339 340 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED) 341 eapol_conf.required_keys = 0; 342 } 343 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; 344 eapol_conf.workaround = ssid->eap_workaround; 345 eapol_conf.eap_disabled = 346 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && 347 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && 348 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; 349 eapol_conf.external_sim = wpa_s->conf->external_sim; 350 351#ifdef CONFIG_WPS 352 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 353 eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE; 354 if (wpa_s->current_bss) { 355 struct wpabuf *ie; 356 ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss, 357 WPS_IE_VENDOR_TYPE); 358 if (ie) { 359 if (wps_is_20(ie)) 360 eapol_conf.wps |= 361 EAPOL_PEER_IS_WPS20_AP; 362 wpabuf_free(ie); 363 } 364 } 365 } 366#endif /* CONFIG_WPS */ 367 368 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); 369 370#ifdef CONFIG_MACSEC 371 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE && ssid->mka_psk_set) 372 ieee802_1x_create_preshared_mka(wpa_s, ssid); 373 else 374 ieee802_1x_alloc_kay_sm(wpa_s, ssid); 375#endif /* CONFIG_MACSEC */ 376#endif /* IEEE8021X_EAPOL */ 377} 378 379 380/** 381 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode 382 * @wpa_s: Pointer to wpa_supplicant data 383 * @ssid: Configuration data for the network 384 * 385 * This function is used to configure WPA state machine and related parameters 386 * to a mode where WPA is not enabled. This is called as part of the 387 * authentication configuration when the selected network does not use WPA. 388 */ 389void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, 390 struct wpa_ssid *ssid) 391{ 392 int i; 393 394 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 395 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; 396 else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) 397 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; 398 else 399 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 400 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 401 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 402 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 403 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 404 wpa_s->group_cipher = WPA_CIPHER_NONE; 405 wpa_s->mgmt_group_cipher = 0; 406 407 for (i = 0; i < NUM_WEP_KEYS; i++) { 408 if (ssid->wep_key_len[i] > 5) { 409 wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; 410 wpa_s->group_cipher = WPA_CIPHER_WEP104; 411 break; 412 } else if (ssid->wep_key_len[i] > 0) { 413 wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; 414 wpa_s->group_cipher = WPA_CIPHER_WEP40; 415 break; 416 } 417 } 418 419 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); 420 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); 421 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, 422 wpa_s->pairwise_cipher); 423 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); 424#ifdef CONFIG_IEEE80211W 425 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, 426 wpa_s->mgmt_group_cipher); 427#endif /* CONFIG_IEEE80211W */ 428 429 pmksa_cache_clear_current(wpa_s->wpa); 430} 431 432 433void free_hw_features(struct wpa_supplicant *wpa_s) 434{ 435 int i; 436 if (wpa_s->hw.modes == NULL) 437 return; 438 439 for (i = 0; i < wpa_s->hw.num_modes; i++) { 440 os_free(wpa_s->hw.modes[i].channels); 441 os_free(wpa_s->hw.modes[i].rates); 442 } 443 444 os_free(wpa_s->hw.modes); 445 wpa_s->hw.modes = NULL; 446} 447 448 449void free_bss_tmp_disallowed(struct wpa_supplicant *wpa_s) 450{ 451 struct wpa_bss_tmp_disallowed *bss, *prev; 452 453 dl_list_for_each_safe(bss, prev, &wpa_s->bss_tmp_disallowed, 454 struct wpa_bss_tmp_disallowed, list) { 455 eloop_cancel_timeout(wpa_bss_tmp_disallow_timeout, wpa_s, bss); 456 dl_list_del(&bss->list); 457 os_free(bss); 458 } 459} 460 461 462void wpas_flush_fils_hlp_req(struct wpa_supplicant *wpa_s) 463{ 464 struct fils_hlp_req *req; 465 466 while ((req = dl_list_first(&wpa_s->fils_hlp_req, struct fils_hlp_req, 467 list)) != NULL) { 468 dl_list_del(&req->list); 469 wpabuf_free(req->pkt); 470 os_free(req); 471 } 472} 473 474 475static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) 476{ 477 int i; 478 479 bgscan_deinit(wpa_s); 480 autoscan_deinit(wpa_s); 481 scard_deinit(wpa_s->scard); 482 wpa_s->scard = NULL; 483 wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); 484 eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); 485 l2_packet_deinit(wpa_s->l2); 486 wpa_s->l2 = NULL; 487 if (wpa_s->l2_br) { 488 l2_packet_deinit(wpa_s->l2_br); 489 wpa_s->l2_br = NULL; 490 } 491#ifdef CONFIG_TESTING_OPTIONS 492 l2_packet_deinit(wpa_s->l2_test); 493 wpa_s->l2_test = NULL; 494 os_free(wpa_s->get_pref_freq_list_override); 495 wpa_s->get_pref_freq_list_override = NULL; 496 wpabuf_free(wpa_s->last_assoc_req_wpa_ie); 497 wpa_s->last_assoc_req_wpa_ie = NULL; 498#endif /* CONFIG_TESTING_OPTIONS */ 499 500 if (wpa_s->conf != NULL) { 501 struct wpa_ssid *ssid; 502 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) 503 wpas_notify_network_removed(wpa_s, ssid); 504 } 505 506 os_free(wpa_s->confname); 507 wpa_s->confname = NULL; 508 509 os_free(wpa_s->confanother); 510 wpa_s->confanother = NULL; 511 512 os_free(wpa_s->last_con_fail_realm); 513 wpa_s->last_con_fail_realm = NULL; 514 wpa_s->last_con_fail_realm_len = 0; 515 516 wpa_sm_set_eapol(wpa_s->wpa, NULL); 517 eapol_sm_deinit(wpa_s->eapol); 518 wpa_s->eapol = NULL; 519 520 rsn_preauth_deinit(wpa_s->wpa); 521 522#ifdef CONFIG_TDLS 523 wpa_tdls_deinit(wpa_s->wpa); 524#endif /* CONFIG_TDLS */ 525 526 wmm_ac_clear_saved_tspecs(wpa_s); 527 pmksa_candidate_free(wpa_s->wpa); 528 wpa_sm_deinit(wpa_s->wpa); 529 wpa_s->wpa = NULL; 530 wpa_blacklist_clear(wpa_s); 531 532 wpa_bss_deinit(wpa_s); 533 534 wpa_supplicant_cancel_delayed_sched_scan(wpa_s); 535 wpa_supplicant_cancel_scan(wpa_s); 536 wpa_supplicant_cancel_auth_timeout(wpa_s); 537 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); 538#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 539 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, 540 wpa_s, NULL); 541#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 542 543 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 544 545 wpas_wps_deinit(wpa_s); 546 547 wpabuf_free(wpa_s->pending_eapol_rx); 548 wpa_s->pending_eapol_rx = NULL; 549 550#ifdef CONFIG_IBSS_RSN 551 ibss_rsn_deinit(wpa_s->ibss_rsn); 552 wpa_s->ibss_rsn = NULL; 553#endif /* CONFIG_IBSS_RSN */ 554 555 sme_deinit(wpa_s); 556 557#ifdef CONFIG_AP 558 wpa_supplicant_ap_deinit(wpa_s); 559#endif /* CONFIG_AP */ 560 561 wpas_p2p_deinit(wpa_s); 562 563#ifdef CONFIG_OFFCHANNEL 564 offchannel_deinit(wpa_s); 565#endif /* CONFIG_OFFCHANNEL */ 566 567 wpa_supplicant_cancel_sched_scan(wpa_s); 568 569 os_free(wpa_s->next_scan_freqs); 570 wpa_s->next_scan_freqs = NULL; 571 572 os_free(wpa_s->manual_scan_freqs); 573 wpa_s->manual_scan_freqs = NULL; 574 os_free(wpa_s->select_network_scan_freqs); 575 wpa_s->select_network_scan_freqs = NULL; 576 577 os_free(wpa_s->manual_sched_scan_freqs); 578 wpa_s->manual_sched_scan_freqs = NULL; 579 580 wpas_mac_addr_rand_scan_clear(wpa_s, MAC_ADDR_RAND_ALL); 581 582 /* 583 * Need to remove any pending gas-query radio work before the 584 * gas_query_deinit() call because gas_query::work has not yet been set 585 * for works that have not been started. gas_query_free() will be unable 586 * to cancel such pending radio works and once the pending gas-query 587 * radio work eventually gets removed, the deinit notification call to 588 * gas_query_start_cb() would result in dereferencing freed memory. 589 */ 590 if (wpa_s->radio) 591 radio_remove_works(wpa_s, "gas-query", 0); 592 gas_query_deinit(wpa_s->gas); 593 wpa_s->gas = NULL; 594 gas_server_deinit(wpa_s->gas_server); 595 wpa_s->gas_server = NULL; 596 597 free_hw_features(wpa_s); 598 599 ieee802_1x_dealloc_kay_sm(wpa_s); 600 601 os_free(wpa_s->bssid_filter); 602 wpa_s->bssid_filter = NULL; 603 604 os_free(wpa_s->disallow_aps_bssid); 605 wpa_s->disallow_aps_bssid = NULL; 606 os_free(wpa_s->disallow_aps_ssid); 607 wpa_s->disallow_aps_ssid = NULL; 608 609 wnm_bss_keep_alive_deinit(wpa_s); 610#ifdef CONFIG_WNM 611 wnm_deallocate_memory(wpa_s); 612#endif /* CONFIG_WNM */ 613 614 ext_password_deinit(wpa_s->ext_pw); 615 wpa_s->ext_pw = NULL; 616 617 wpabuf_free(wpa_s->last_gas_resp); 618 wpa_s->last_gas_resp = NULL; 619 wpabuf_free(wpa_s->prev_gas_resp); 620 wpa_s->prev_gas_resp = NULL; 621 622 os_free(wpa_s->last_scan_res); 623 wpa_s->last_scan_res = NULL; 624 625#ifdef CONFIG_HS20 626 if (wpa_s->drv_priv) 627 wpa_drv_configure_frame_filters(wpa_s, 0); 628 hs20_deinit(wpa_s); 629#endif /* CONFIG_HS20 */ 630 631 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) { 632 wpabuf_free(wpa_s->vendor_elem[i]); 633 wpa_s->vendor_elem[i] = NULL; 634 } 635 636 wmm_ac_notify_disassoc(wpa_s); 637 638 wpa_s->sched_scan_plans_num = 0; 639 os_free(wpa_s->sched_scan_plans); 640 wpa_s->sched_scan_plans = NULL; 641 642#ifdef CONFIG_MBO 643 wpa_s->non_pref_chan_num = 0; 644 os_free(wpa_s->non_pref_chan); 645 wpa_s->non_pref_chan = NULL; 646#endif /* CONFIG_MBO */ 647 648 free_bss_tmp_disallowed(wpa_s); 649 650 wpabuf_free(wpa_s->lci); 651 wpa_s->lci = NULL; 652 wpas_clear_beacon_rep_data(wpa_s); 653 654#ifdef CONFIG_PMKSA_CACHE_EXTERNAL 655#ifdef CONFIG_MESH 656 { 657 struct external_pmksa_cache *entry; 658 659 while ((entry = dl_list_last(&wpa_s->mesh_external_pmksa_cache, 660 struct external_pmksa_cache, 661 list)) != NULL) { 662 dl_list_del(&entry->list); 663 os_free(entry->pmksa_cache); 664 os_free(entry); 665 } 666 } 667#endif /* CONFIG_MESH */ 668#endif /* CONFIG_PMKSA_CACHE_EXTERNAL */ 669 670 wpas_flush_fils_hlp_req(wpa_s); 671 672 wpabuf_free(wpa_s->ric_ies); 673 wpa_s->ric_ies = NULL; 674 675#ifdef CONFIG_DPP 676 wpas_dpp_deinit(wpa_s); 677 dpp_global_deinit(wpa_s->dpp); 678 wpa_s->dpp = NULL; 679#endif /* CONFIG_DPP */ 680} 681 682 683/** 684 * wpa_clear_keys - Clear keys configured for the driver 685 * @wpa_s: Pointer to wpa_supplicant data 686 * @addr: Previously used BSSID or %NULL if not available 687 * 688 * This function clears the encryption keys that has been previously configured 689 * for the driver. 690 */ 691void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) 692{ 693 int i, max; 694 695#ifdef CONFIG_IEEE80211W 696 max = 6; 697#else /* CONFIG_IEEE80211W */ 698 max = 4; 699#endif /* CONFIG_IEEE80211W */ 700 701 /* MLME-DELETEKEYS.request */ 702 for (i = 0; i < max; i++) { 703 if (wpa_s->keys_cleared & BIT(i)) 704 continue; 705 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0, 706 NULL, 0); 707 } 708 if (!(wpa_s->keys_cleared & BIT(0)) && addr && 709 !is_zero_ether_addr(addr)) { 710 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, 711 0); 712 /* MLME-SETPROTECTION.request(None) */ 713 wpa_drv_mlme_setprotection( 714 wpa_s, addr, 715 MLME_SETPROTECTION_PROTECT_TYPE_NONE, 716 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); 717 } 718 wpa_s->keys_cleared = (u32) -1; 719} 720 721 722/** 723 * wpa_supplicant_state_txt - Get the connection state name as a text string 724 * @state: State (wpa_state; WPA_*) 725 * Returns: The state name as a printable text string 726 */ 727const char * wpa_supplicant_state_txt(enum wpa_states state) 728{ 729 switch (state) { 730 case WPA_DISCONNECTED: 731 return "DISCONNECTED"; 732 case WPA_INACTIVE: 733 return "INACTIVE"; 734 case WPA_INTERFACE_DISABLED: 735 return "INTERFACE_DISABLED"; 736 case WPA_SCANNING: 737 return "SCANNING"; 738 case WPA_AUTHENTICATING: 739 return "AUTHENTICATING"; 740 case WPA_ASSOCIATING: 741 return "ASSOCIATING"; 742 case WPA_ASSOCIATED: 743 return "ASSOCIATED"; 744 case WPA_4WAY_HANDSHAKE: 745 return "4WAY_HANDSHAKE"; 746 case WPA_GROUP_HANDSHAKE: 747 return "GROUP_HANDSHAKE"; 748 case WPA_COMPLETED: 749 return "COMPLETED"; 750 default: 751 return "UNKNOWN"; 752 } 753} 754 755 756#ifdef CONFIG_BGSCAN 757 758static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) 759{ 760 const char *name; 761 762 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) 763 name = wpa_s->current_ssid->bgscan; 764 else 765 name = wpa_s->conf->bgscan; 766 if (name == NULL || name[0] == '\0') 767 return; 768 if (wpas_driver_bss_selection(wpa_s)) 769 return; 770 if (wpa_s->current_ssid == wpa_s->bgscan_ssid) 771 return; 772#ifdef CONFIG_P2P 773 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) 774 return; 775#endif /* CONFIG_P2P */ 776 777 bgscan_deinit(wpa_s); 778 if (wpa_s->current_ssid) { 779 if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) { 780 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " 781 "bgscan"); 782 /* 783 * Live without bgscan; it is only used as a roaming 784 * optimization, so the initial connection is not 785 * affected. 786 */ 787 } else { 788 struct wpa_scan_results *scan_res; 789 wpa_s->bgscan_ssid = wpa_s->current_ssid; 790 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 791 0); 792 if (scan_res) { 793 bgscan_notify_scan(wpa_s, scan_res); 794 wpa_scan_results_free(scan_res); 795 } 796 } 797 } else 798 wpa_s->bgscan_ssid = NULL; 799} 800 801 802static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) 803{ 804 if (wpa_s->bgscan_ssid != NULL) { 805 bgscan_deinit(wpa_s); 806 wpa_s->bgscan_ssid = NULL; 807 } 808} 809 810#endif /* CONFIG_BGSCAN */ 811 812 813static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s) 814{ 815 if (autoscan_init(wpa_s, 0)) 816 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan"); 817} 818 819 820static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s) 821{ 822 autoscan_deinit(wpa_s); 823} 824 825 826void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s) 827{ 828 if (wpa_s->wpa_state == WPA_DISCONNECTED || 829 wpa_s->wpa_state == WPA_SCANNING) { 830 autoscan_deinit(wpa_s); 831 wpa_supplicant_start_autoscan(wpa_s); 832 } 833} 834 835 836/** 837 * wpa_supplicant_set_state - Set current connection state 838 * @wpa_s: Pointer to wpa_supplicant data 839 * @state: The new connection state 840 * 841 * This function is called whenever the connection state changes, e.g., 842 * association is completed for WPA/WPA2 4-Way Handshake is started. 843 */ 844void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, 845 enum wpa_states state) 846{ 847 enum wpa_states old_state = wpa_s->wpa_state; 848 849 wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", 850 wpa_supplicant_state_txt(wpa_s->wpa_state), 851 wpa_supplicant_state_txt(state)); 852 853 if (state == WPA_COMPLETED && 854 os_reltime_initialized(&wpa_s->roam_start)) { 855 os_reltime_age(&wpa_s->roam_start, &wpa_s->roam_time); 856 wpa_s->roam_start.sec = 0; 857 wpa_s->roam_start.usec = 0; 858 wpas_notify_auth_changed(wpa_s); 859 wpas_notify_roam_time(wpa_s); 860 wpas_notify_roam_complete(wpa_s); 861 } else if (state == WPA_DISCONNECTED && 862 os_reltime_initialized(&wpa_s->roam_start)) { 863 wpa_s->roam_start.sec = 0; 864 wpa_s->roam_start.usec = 0; 865 wpa_s->roam_time.sec = 0; 866 wpa_s->roam_time.usec = 0; 867 wpas_notify_roam_complete(wpa_s); 868 } 869 870 if (state == WPA_INTERFACE_DISABLED) { 871 /* Assure normal scan when interface is restored */ 872 wpa_s->normal_scans = 0; 873 } 874 875 if (state == WPA_COMPLETED) { 876 wpas_connect_work_done(wpa_s); 877 /* Reinitialize normal_scan counter */ 878 wpa_s->normal_scans = 0; 879 } 880 881#ifdef CONFIG_P2P 882 /* 883 * P2PS client has to reply to Probe Request frames received on the 884 * group operating channel. Enable Probe Request frame reporting for 885 * P2P connected client in case p2p_cli_probe configuration property is 886 * set to 1. 887 */ 888 if (wpa_s->conf->p2p_cli_probe && wpa_s->current_ssid && 889 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 890 wpa_s->current_ssid->p2p_group) { 891 if (state == WPA_COMPLETED && !wpa_s->p2p_cli_probe) { 892 wpa_dbg(wpa_s, MSG_DEBUG, 893 "P2P: Enable CLI Probe Request RX reporting"); 894 wpa_s->p2p_cli_probe = 895 wpa_drv_probe_req_report(wpa_s, 1) >= 0; 896 } else if (state != WPA_COMPLETED && wpa_s->p2p_cli_probe) { 897 wpa_dbg(wpa_s, MSG_DEBUG, 898 "P2P: Disable CLI Probe Request RX reporting"); 899 wpa_s->p2p_cli_probe = 0; 900 wpa_drv_probe_req_report(wpa_s, 0); 901 } 902 } 903#endif /* CONFIG_P2P */ 904 905 if (state != WPA_SCANNING) 906 wpa_supplicant_notify_scanning(wpa_s, 0); 907 908 if (state == WPA_COMPLETED && wpa_s->new_connection) { 909 struct wpa_ssid *ssid = wpa_s->current_ssid; 910 int fils_hlp_sent = 0; 911 912#ifdef CONFIG_SME 913 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 914 wpa_auth_alg_fils(wpa_s->sme.auth_alg)) 915 fils_hlp_sent = 1; 916#endif /* CONFIG_SME */ 917 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 918 wpa_auth_alg_fils(wpa_s->auth_alg)) 919 fils_hlp_sent = 1; 920 921#if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) 922 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " 923 MACSTR " completed [id=%d id_str=%s%s]", 924 MAC2STR(wpa_s->bssid), 925 ssid ? ssid->id : -1, 926 ssid && ssid->id_str ? ssid->id_str : "", 927 fils_hlp_sent ? " FILS_HLP_SENT" : ""); 928#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ 929 wpas_clear_temp_disabled(wpa_s, ssid, 1); 930 wpa_blacklist_clear(wpa_s); 931 wpa_s->extra_blacklist_count = 0; 932 wpa_s->new_connection = 0; 933 wpa_drv_set_operstate(wpa_s, 1); 934#ifndef IEEE8021X_EAPOL 935 wpa_drv_set_supp_port(wpa_s, 1); 936#endif /* IEEE8021X_EAPOL */ 937 wpa_s->after_wps = 0; 938 wpa_s->known_wps_freq = 0; 939 wpas_p2p_completed(wpa_s); 940 941 sme_sched_obss_scan(wpa_s, 1); 942 943#if defined(CONFIG_FILS) && defined(IEEE8021X_EAPOL) 944 if (!fils_hlp_sent && ssid && ssid->eap.erp) 945 wpas_update_fils_connect_params(wpa_s); 946#endif /* CONFIG_FILS && IEEE8021X_EAPOL */ 947 } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || 948 state == WPA_ASSOCIATED) { 949 wpa_s->new_connection = 1; 950 wpa_drv_set_operstate(wpa_s, 0); 951#ifndef IEEE8021X_EAPOL 952 wpa_drv_set_supp_port(wpa_s, 0); 953#endif /* IEEE8021X_EAPOL */ 954 sme_sched_obss_scan(wpa_s, 0); 955 } 956 wpa_s->wpa_state = state; 957 958#ifdef CONFIG_BGSCAN 959 if (state == WPA_COMPLETED) 960 wpa_supplicant_start_bgscan(wpa_s); 961 else if (state < WPA_ASSOCIATED) 962 wpa_supplicant_stop_bgscan(wpa_s); 963#endif /* CONFIG_BGSCAN */ 964 965 if (state > WPA_SCANNING) 966 wpa_supplicant_stop_autoscan(wpa_s); 967 968 if (state == WPA_DISCONNECTED || state == WPA_INACTIVE) 969 wpa_supplicant_start_autoscan(wpa_s); 970 971 if (old_state >= WPA_ASSOCIATED && wpa_s->wpa_state < WPA_ASSOCIATED) 972 wmm_ac_notify_disassoc(wpa_s); 973 974 if (wpa_s->wpa_state != old_state) { 975 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); 976 977 /* 978 * Notify the P2P Device interface about a state change in one 979 * of the interfaces. 980 */ 981 wpas_p2p_indicate_state_change(wpa_s); 982 983 if (wpa_s->wpa_state == WPA_COMPLETED || 984 old_state == WPA_COMPLETED) 985 wpas_notify_auth_changed(wpa_s); 986 } 987} 988 989 990void wpa_supplicant_terminate_proc(struct wpa_global *global) 991{ 992 int pending = 0; 993#ifdef CONFIG_WPS 994 struct wpa_supplicant *wpa_s = global->ifaces; 995 while (wpa_s) { 996 struct wpa_supplicant *next = wpa_s->next; 997 if (wpas_wps_terminate_pending(wpa_s) == 1) 998 pending = 1; 999#ifdef CONFIG_P2P 1000 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE || 1001 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)) 1002 wpas_p2p_disconnect(wpa_s); 1003#endif /* CONFIG_P2P */ 1004 wpa_s = next; 1005 } 1006#endif /* CONFIG_WPS */ 1007 if (pending) 1008 return; 1009 eloop_terminate(); 1010} 1011 1012 1013static void wpa_supplicant_terminate(int sig, void *signal_ctx) 1014{ 1015 struct wpa_global *global = signal_ctx; 1016 wpa_supplicant_terminate_proc(global); 1017} 1018 1019 1020void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) 1021{ 1022 enum wpa_states old_state = wpa_s->wpa_state; 1023 1024 wpa_s->pairwise_cipher = 0; 1025 wpa_s->group_cipher = 0; 1026 wpa_s->mgmt_group_cipher = 0; 1027 wpa_s->key_mgmt = 0; 1028 if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) 1029 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1030 1031 if (wpa_s->wpa_state != old_state) 1032 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); 1033} 1034 1035 1036/** 1037 * wpa_supplicant_reload_configuration - Reload configuration data 1038 * @wpa_s: Pointer to wpa_supplicant data 1039 * Returns: 0 on success or -1 if configuration parsing failed 1040 * 1041 * This function can be used to request that the configuration data is reloaded 1042 * (e.g., after configuration file change). This function is reloading 1043 * configuration only for one interface, so this may need to be called multiple 1044 * times if %wpa_supplicant is controlling multiple interfaces and all 1045 * interfaces need reconfiguration. 1046 */ 1047int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) 1048{ 1049 struct wpa_config *conf; 1050 int reconf_ctrl; 1051 int old_ap_scan; 1052 1053 if (wpa_s->confname == NULL) 1054 return -1; 1055 conf = wpa_config_read(wpa_s->confname, NULL); 1056 if (conf == NULL) { 1057 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " 1058 "file '%s' - exiting", wpa_s->confname); 1059 return -1; 1060 } 1061 if (wpa_s->confanother && 1062 !wpa_config_read(wpa_s->confanother, conf)) { 1063 wpa_msg(wpa_s, MSG_ERROR, 1064 "Failed to parse the configuration file '%s' - exiting", 1065 wpa_s->confanother); 1066 return -1; 1067 } 1068 1069 conf->changed_parameters = (unsigned int) -1; 1070 1071 reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface 1072 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && 1073 os_strcmp(conf->ctrl_interface, 1074 wpa_s->conf->ctrl_interface) != 0); 1075 1076 if (reconf_ctrl && wpa_s->ctrl_iface) { 1077 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); 1078 wpa_s->ctrl_iface = NULL; 1079 } 1080 1081 eapol_sm_invalidate_cached_session(wpa_s->eapol); 1082 if (wpa_s->current_ssid) { 1083 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 1084 wpa_s->own_disconnect_req = 1; 1085 wpa_supplicant_deauthenticate(wpa_s, 1086 WLAN_REASON_DEAUTH_LEAVING); 1087 } 1088 1089 /* 1090 * TODO: should notify EAPOL SM about changes in opensc_engine_path, 1091 * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers. 1092 */ 1093 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || 1094 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || 1095 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP) { 1096 /* 1097 * Clear forced success to clear EAP state for next 1098 * authentication. 1099 */ 1100 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1101 } 1102 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 1103 wpa_sm_set_config(wpa_s->wpa, NULL); 1104 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); 1105 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); 1106 rsn_preauth_deinit(wpa_s->wpa); 1107 1108 old_ap_scan = wpa_s->conf->ap_scan; 1109 wpa_config_free(wpa_s->conf); 1110 wpa_s->conf = conf; 1111 if (old_ap_scan != wpa_s->conf->ap_scan) 1112 wpas_notify_ap_scan_changed(wpa_s); 1113 1114 if (reconf_ctrl) 1115 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); 1116 1117 wpa_supplicant_update_config(wpa_s); 1118 1119 wpa_supplicant_clear_status(wpa_s); 1120 if (wpa_supplicant_enabled_networks(wpa_s)) { 1121 wpa_s->reassociate = 1; 1122 wpa_supplicant_req_scan(wpa_s, 0, 0); 1123 } 1124 wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); 1125 return 0; 1126} 1127 1128 1129static void wpa_supplicant_reconfig(int sig, void *signal_ctx) 1130{ 1131 struct wpa_global *global = signal_ctx; 1132 struct wpa_supplicant *wpa_s; 1133 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { 1134 wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", 1135 sig); 1136 if (wpa_supplicant_reload_configuration(wpa_s) < 0) { 1137 wpa_supplicant_terminate_proc(global); 1138 } 1139 } 1140 1141 if (wpa_debug_reopen_file() < 0) { 1142 /* Ignore errors since we cannot really do much to fix this */ 1143 wpa_printf(MSG_DEBUG, "Could not reopen debug log file"); 1144 } 1145} 1146 1147 1148static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, 1149 struct wpa_ssid *ssid, 1150 struct wpa_ie_data *ie) 1151{ 1152 int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); 1153 if (ret) { 1154 if (ret == -2) { 1155 wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " 1156 "from association info"); 1157 } 1158 return -1; 1159 } 1160 1161 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " 1162 "cipher suites"); 1163 if (!(ie->group_cipher & ssid->group_cipher)) { 1164 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " 1165 "cipher 0x%x (mask 0x%x) - reject", 1166 ie->group_cipher, ssid->group_cipher); 1167 return -1; 1168 } 1169 if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { 1170 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " 1171 "cipher 0x%x (mask 0x%x) - reject", 1172 ie->pairwise_cipher, ssid->pairwise_cipher); 1173 return -1; 1174 } 1175 if (!(ie->key_mgmt & ssid->key_mgmt)) { 1176 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " 1177 "management 0x%x (mask 0x%x) - reject", 1178 ie->key_mgmt, ssid->key_mgmt); 1179 return -1; 1180 } 1181 1182#ifdef CONFIG_IEEE80211W 1183 if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && 1184 wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) { 1185 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " 1186 "that does not support management frame protection - " 1187 "reject"); 1188 return -1; 1189 } 1190#endif /* CONFIG_IEEE80211W */ 1191 1192 return 0; 1193} 1194 1195 1196static int matching_ciphers(struct wpa_ssid *ssid, struct wpa_ie_data *ie, 1197 int freq) 1198{ 1199 if (!ie->has_group) 1200 ie->group_cipher = wpa_default_rsn_cipher(freq); 1201 if (!ie->has_pairwise) 1202 ie->pairwise_cipher = wpa_default_rsn_cipher(freq); 1203 return (ie->group_cipher & ssid->group_cipher) && 1204 (ie->pairwise_cipher & ssid->pairwise_cipher); 1205} 1206 1207 1208/** 1209 * wpa_supplicant_set_suites - Set authentication and encryption parameters 1210 * @wpa_s: Pointer to wpa_supplicant data 1211 * @bss: Scan results for the selected BSS, or %NULL if not available 1212 * @ssid: Configuration data for the selected network 1213 * @wpa_ie: Buffer for the WPA/RSN IE 1214 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the 1215 * used buffer length in case the functions returns success. 1216 * Returns: 0 on success or -1 on failure 1217 * 1218 * This function is used to configure authentication and encryption parameters 1219 * based on the network configuration and scan result for the selected BSS (if 1220 * available). 1221 */ 1222int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, 1223 struct wpa_bss *bss, struct wpa_ssid *ssid, 1224 u8 *wpa_ie, size_t *wpa_ie_len) 1225{ 1226 struct wpa_ie_data ie; 1227 int sel, proto; 1228 const u8 *bss_wpa, *bss_rsn, *bss_osen; 1229 1230 if (bss) { 1231 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 1232 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1233 bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); 1234 } else 1235 bss_wpa = bss_rsn = bss_osen = NULL; 1236 1237 if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && 1238 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && 1239 matching_ciphers(ssid, &ie, bss->freq) && 1240 (ie.key_mgmt & ssid->key_mgmt)) { 1241 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); 1242 proto = WPA_PROTO_RSN; 1243 } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && 1244 wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 && 1245 (ie.group_cipher & ssid->group_cipher) && 1246 (ie.pairwise_cipher & ssid->pairwise_cipher) && 1247 (ie.key_mgmt & ssid->key_mgmt)) { 1248 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); 1249 proto = WPA_PROTO_WPA; 1250#ifdef CONFIG_HS20 1251 } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN) && 1252 wpa_parse_wpa_ie(bss_osen, 2 + bss_osen[1], &ie) == 0 && 1253 (ie.group_cipher & ssid->group_cipher) && 1254 (ie.pairwise_cipher & ssid->pairwise_cipher) && 1255 (ie.key_mgmt & ssid->key_mgmt)) { 1256 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN"); 1257 proto = WPA_PROTO_OSEN; 1258 } else if (bss_rsn && (ssid->proto & WPA_PROTO_OSEN) && 1259 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && 1260 (ie.group_cipher & ssid->group_cipher) && 1261 (ie.pairwise_cipher & ssid->pairwise_cipher) && 1262 (ie.key_mgmt & ssid->key_mgmt)) { 1263 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using OSEN (within RSN)"); 1264 proto = WPA_PROTO_RSN; 1265#endif /* CONFIG_HS20 */ 1266 } else if (bss) { 1267 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); 1268 wpa_dbg(wpa_s, MSG_DEBUG, 1269 "WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x", 1270 ssid->proto, ssid->pairwise_cipher, ssid->group_cipher, 1271 ssid->key_mgmt); 1272 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s", 1273 MAC2STR(bss->bssid), 1274 wpa_ssid_txt(bss->ssid, bss->ssid_len), 1275 bss_wpa ? " WPA" : "", 1276 bss_rsn ? " RSN" : "", 1277 bss_osen ? " OSEN" : ""); 1278 if (bss_rsn) { 1279 wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]); 1280 if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) { 1281 wpa_dbg(wpa_s, MSG_DEBUG, 1282 "Could not parse RSN element"); 1283 } else { 1284 wpa_dbg(wpa_s, MSG_DEBUG, 1285 "RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x", 1286 ie.pairwise_cipher, ie.group_cipher, 1287 ie.key_mgmt); 1288 } 1289 } 1290 if (bss_wpa) { 1291 wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]); 1292 if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) { 1293 wpa_dbg(wpa_s, MSG_DEBUG, 1294 "Could not parse WPA element"); 1295 } else { 1296 wpa_dbg(wpa_s, MSG_DEBUG, 1297 "WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x", 1298 ie.pairwise_cipher, ie.group_cipher, 1299 ie.key_mgmt); 1300 } 1301 } 1302 return -1; 1303 } else { 1304 if (ssid->proto & WPA_PROTO_OSEN) 1305 proto = WPA_PROTO_OSEN; 1306 else if (ssid->proto & WPA_PROTO_RSN) 1307 proto = WPA_PROTO_RSN; 1308 else 1309 proto = WPA_PROTO_WPA; 1310 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { 1311 os_memset(&ie, 0, sizeof(ie)); 1312 ie.group_cipher = ssid->group_cipher; 1313 ie.pairwise_cipher = ssid->pairwise_cipher; 1314 ie.key_mgmt = ssid->key_mgmt; 1315#ifdef CONFIG_IEEE80211W 1316 ie.mgmt_group_cipher = 0; 1317 if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) { 1318 if (ssid->group_mgmt_cipher & 1319 WPA_CIPHER_BIP_GMAC_256) 1320 ie.mgmt_group_cipher = 1321 WPA_CIPHER_BIP_GMAC_256; 1322 else if (ssid->group_mgmt_cipher & 1323 WPA_CIPHER_BIP_CMAC_256) 1324 ie.mgmt_group_cipher = 1325 WPA_CIPHER_BIP_CMAC_256; 1326 else if (ssid->group_mgmt_cipher & 1327 WPA_CIPHER_BIP_GMAC_128) 1328 ie.mgmt_group_cipher = 1329 WPA_CIPHER_BIP_GMAC_128; 1330 else 1331 ie.mgmt_group_cipher = 1332 WPA_CIPHER_AES_128_CMAC; 1333 } 1334#endif /* CONFIG_IEEE80211W */ 1335#ifdef CONFIG_OWE 1336 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && 1337 !ssid->owe_only && 1338 !bss_wpa && !bss_rsn && !bss_osen) { 1339 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 1340 wpa_s->wpa_proto = 0; 1341 *wpa_ie_len = 0; 1342 return 0; 1343 } 1344#endif /* CONFIG_OWE */ 1345 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " 1346 "based on configuration"); 1347 } else 1348 proto = ie.proto; 1349 } 1350 1351 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " 1352 "pairwise %d key_mgmt %d proto %d", 1353 ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); 1354#ifdef CONFIG_IEEE80211W 1355 if (ssid->ieee80211w) { 1356 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", 1357 ie.mgmt_group_cipher); 1358 } 1359#endif /* CONFIG_IEEE80211W */ 1360 1361 wpa_s->wpa_proto = proto; 1362 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); 1363 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 1364 !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN))); 1365 1366 if (bss || !wpa_s->ap_ies_from_associnfo) { 1367 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1368 bss_wpa ? 2 + bss_wpa[1] : 0) || 1369 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1370 bss_rsn ? 2 + bss_rsn[1] : 0)) 1371 return -1; 1372 } 1373 1374#ifdef CONFIG_NO_WPA 1375 wpa_s->group_cipher = WPA_CIPHER_NONE; 1376 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 1377#else /* CONFIG_NO_WPA */ 1378 sel = ie.group_cipher & ssid->group_cipher; 1379 wpa_dbg(wpa_s, MSG_DEBUG, 1380 "WPA: AP group 0x%x network profile group 0x%x; available group 0x%x", 1381 ie.group_cipher, ssid->group_cipher, sel); 1382 wpa_s->group_cipher = wpa_pick_group_cipher(sel); 1383 if (wpa_s->group_cipher < 0) { 1384 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " 1385 "cipher"); 1386 return -1; 1387 } 1388 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s", 1389 wpa_cipher_txt(wpa_s->group_cipher)); 1390 1391 sel = ie.pairwise_cipher & ssid->pairwise_cipher; 1392 wpa_dbg(wpa_s, MSG_DEBUG, 1393 "WPA: AP pairwise 0x%x network profile pairwise 0x%x; available pairwise 0x%x", 1394 ie.pairwise_cipher, ssid->pairwise_cipher, sel); 1395 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1); 1396 if (wpa_s->pairwise_cipher < 0) { 1397 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " 1398 "cipher"); 1399 return -1; 1400 } 1401 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s", 1402 wpa_cipher_txt(wpa_s->pairwise_cipher)); 1403#endif /* CONFIG_NO_WPA */ 1404 1405 sel = ie.key_mgmt & ssid->key_mgmt; 1406 wpa_dbg(wpa_s, MSG_DEBUG, 1407 "WPA: AP key_mgmt 0x%x network profile key_mgmt 0x%x; available key_mgmt 0x%x", 1408 ie.key_mgmt, ssid->key_mgmt, sel); 1409#ifdef CONFIG_SAE 1410 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) 1411 sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE); 1412#endif /* CONFIG_SAE */ 1413 if (0) { 1414#ifdef CONFIG_IEEE80211R 1415#ifdef CONFIG_SHA384 1416 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) { 1417 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X_SHA384; 1418 wpa_dbg(wpa_s, MSG_DEBUG, 1419 "WPA: using KEY_MGMT FT/802.1X-SHA384"); 1420 if (!ssid->ft_eap_pmksa_caching && 1421 pmksa_cache_get_current(wpa_s->wpa)) { 1422 /* PMKSA caching with FT may have interoperability 1423 * issues, so disable that case by default for now. */ 1424 wpa_dbg(wpa_s, MSG_DEBUG, 1425 "WPA: Disable PMKSA caching for FT/802.1X connection"); 1426 pmksa_cache_clear_current(wpa_s->wpa); 1427 } 1428#endif /* CONFIG_SHA384 */ 1429#endif /* CONFIG_IEEE80211R */ 1430#ifdef CONFIG_SUITEB192 1431 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { 1432 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B_192; 1433 wpa_dbg(wpa_s, MSG_DEBUG, 1434 "WPA: using KEY_MGMT 802.1X with Suite B (192-bit)"); 1435#endif /* CONFIG_SUITEB192 */ 1436#ifdef CONFIG_SUITEB 1437 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B) { 1438 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B; 1439 wpa_dbg(wpa_s, MSG_DEBUG, 1440 "WPA: using KEY_MGMT 802.1X with Suite B"); 1441#endif /* CONFIG_SUITEB */ 1442#ifdef CONFIG_FILS 1443#ifdef CONFIG_IEEE80211R 1444 } else if (sel & WPA_KEY_MGMT_FT_FILS_SHA384) { 1445 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_FILS_SHA384; 1446 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT-FILS-SHA384"); 1447 } else if (sel & WPA_KEY_MGMT_FT_FILS_SHA256) { 1448 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_FILS_SHA256; 1449 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT-FILS-SHA256"); 1450#endif /* CONFIG_IEEE80211R */ 1451 } else if (sel & WPA_KEY_MGMT_FILS_SHA384) { 1452 wpa_s->key_mgmt = WPA_KEY_MGMT_FILS_SHA384; 1453 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FILS-SHA384"); 1454 } else if (sel & WPA_KEY_MGMT_FILS_SHA256) { 1455 wpa_s->key_mgmt = WPA_KEY_MGMT_FILS_SHA256; 1456 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FILS-SHA256"); 1457#endif /* CONFIG_FILS */ 1458#ifdef CONFIG_IEEE80211R 1459 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { 1460 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; 1461 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); 1462 if (!ssid->ft_eap_pmksa_caching && 1463 pmksa_cache_get_current(wpa_s->wpa)) { 1464 /* PMKSA caching with FT may have interoperability 1465 * issues, so disable that case by default for now. */ 1466 wpa_dbg(wpa_s, MSG_DEBUG, 1467 "WPA: Disable PMKSA caching for FT/802.1X connection"); 1468 pmksa_cache_clear_current(wpa_s->wpa); 1469 } 1470#endif /* CONFIG_IEEE80211R */ 1471#ifdef CONFIG_DPP 1472 } else if (sel & WPA_KEY_MGMT_DPP) { 1473 wpa_s->key_mgmt = WPA_KEY_MGMT_DPP; 1474 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT DPP"); 1475#endif /* CONFIG_DPP */ 1476#ifdef CONFIG_SAE 1477 } else if (sel & WPA_KEY_MGMT_FT_SAE) { 1478 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE; 1479 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE"); 1480 } else if (sel & WPA_KEY_MGMT_SAE) { 1481 wpa_s->key_mgmt = WPA_KEY_MGMT_SAE; 1482 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE"); 1483#endif /* CONFIG_SAE */ 1484#ifdef CONFIG_IEEE80211R 1485 } else if (sel & WPA_KEY_MGMT_FT_PSK) { 1486 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; 1487 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); 1488#endif /* CONFIG_IEEE80211R */ 1489#ifdef CONFIG_IEEE80211W 1490 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { 1491 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; 1492 wpa_dbg(wpa_s, MSG_DEBUG, 1493 "WPA: using KEY_MGMT 802.1X with SHA256"); 1494 } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { 1495 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; 1496 wpa_dbg(wpa_s, MSG_DEBUG, 1497 "WPA: using KEY_MGMT PSK with SHA256"); 1498#endif /* CONFIG_IEEE80211W */ 1499 } else if (sel & WPA_KEY_MGMT_IEEE8021X) { 1500 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; 1501 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); 1502 } else if (sel & WPA_KEY_MGMT_PSK) { 1503 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 1504 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); 1505 } else if (sel & WPA_KEY_MGMT_WPA_NONE) { 1506 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; 1507 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); 1508#ifdef CONFIG_HS20 1509 } else if (sel & WPA_KEY_MGMT_OSEN) { 1510 wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN; 1511 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN"); 1512#endif /* CONFIG_HS20 */ 1513#ifdef CONFIG_OWE 1514 } else if (sel & WPA_KEY_MGMT_OWE) { 1515 wpa_s->key_mgmt = WPA_KEY_MGMT_OWE; 1516 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT OWE"); 1517#endif /* CONFIG_OWE */ 1518 } else { 1519 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " 1520 "authenticated key management type"); 1521 return -1; 1522 } 1523 1524 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); 1525 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, 1526 wpa_s->pairwise_cipher); 1527 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); 1528 1529#ifdef CONFIG_IEEE80211W 1530 sel = ie.mgmt_group_cipher; 1531 if (ssid->group_mgmt_cipher) 1532 sel &= ssid->group_mgmt_cipher; 1533 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION || 1534 !(ie.capabilities & WPA_CAPABILITY_MFPC)) 1535 sel = 0; 1536 wpa_dbg(wpa_s, MSG_DEBUG, 1537 "WPA: AP mgmt_group_cipher 0x%x network profile mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x", 1538 ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel); 1539 if (sel & WPA_CIPHER_AES_128_CMAC) { 1540 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; 1541 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " 1542 "AES-128-CMAC"); 1543 } else if (sel & WPA_CIPHER_BIP_GMAC_128) { 1544 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128; 1545 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " 1546 "BIP-GMAC-128"); 1547 } else if (sel & WPA_CIPHER_BIP_GMAC_256) { 1548 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256; 1549 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " 1550 "BIP-GMAC-256"); 1551 } else if (sel & WPA_CIPHER_BIP_CMAC_256) { 1552 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256; 1553 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " 1554 "BIP-CMAC-256"); 1555 } else { 1556 wpa_s->mgmt_group_cipher = 0; 1557 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); 1558 } 1559 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, 1560 wpa_s->mgmt_group_cipher); 1561 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, 1562 wpas_get_ssid_pmf(wpa_s, ssid)); 1563#endif /* CONFIG_IEEE80211W */ 1564#ifdef CONFIG_OCV 1565 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV, ssid->ocv); 1566#endif /* CONFIG_OCV */ 1567 1568 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { 1569 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); 1570 return -1; 1571 } 1572 1573 if (0) { 1574#ifdef CONFIG_DPP 1575 } else if (wpa_s->key_mgmt == WPA_KEY_MGMT_DPP) { 1576 /* Use PMK from DPP network introduction (PMKSA entry) */ 1577 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); 1578#endif /* CONFIG_DPP */ 1579 } else if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { 1580 int psk_set = 0; 1581 int sae_only; 1582 1583 sae_only = (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | 1584 WPA_KEY_MGMT_FT_PSK | 1585 WPA_KEY_MGMT_PSK_SHA256)) == 0; 1586 1587 if (ssid->psk_set && !sae_only) { 1588 wpa_hexdump_key(MSG_MSGDUMP, "PSK (set in config)", 1589 ssid->psk, PMK_LEN); 1590 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL, 1591 NULL); 1592 psk_set = 1; 1593 } 1594 1595 if (wpa_key_mgmt_sae(ssid->key_mgmt) && 1596 (ssid->sae_password || ssid->passphrase)) 1597 psk_set = 1; 1598 1599#ifndef CONFIG_NO_PBKDF2 1600 if (bss && ssid->bssid_set && ssid->ssid_len == 0 && 1601 ssid->passphrase && !sae_only) { 1602 u8 psk[PMK_LEN]; 1603 pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len, 1604 4096, psk, PMK_LEN); 1605 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", 1606 psk, PMK_LEN); 1607 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL, NULL); 1608 psk_set = 1; 1609 os_memset(psk, 0, sizeof(psk)); 1610 } 1611#endif /* CONFIG_NO_PBKDF2 */ 1612#ifdef CONFIG_EXT_PASSWORD 1613 if (ssid->ext_psk && !sae_only) { 1614 struct wpabuf *pw = ext_password_get(wpa_s->ext_pw, 1615 ssid->ext_psk); 1616 char pw_str[64 + 1]; 1617 u8 psk[PMK_LEN]; 1618 1619 if (pw == NULL) { 1620 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK " 1621 "found from external storage"); 1622 return -1; 1623 } 1624 1625 if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) { 1626 wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected " 1627 "PSK length %d in external storage", 1628 (int) wpabuf_len(pw)); 1629 ext_password_free(pw); 1630 return -1; 1631 } 1632 1633 os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw)); 1634 pw_str[wpabuf_len(pw)] = '\0'; 1635 1636#ifndef CONFIG_NO_PBKDF2 1637 if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss) 1638 { 1639 pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len, 1640 4096, psk, PMK_LEN); 1641 os_memset(pw_str, 0, sizeof(pw_str)); 1642 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from " 1643 "external passphrase)", 1644 psk, PMK_LEN); 1645 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL, 1646 NULL); 1647 psk_set = 1; 1648 os_memset(psk, 0, sizeof(psk)); 1649 } else 1650#endif /* CONFIG_NO_PBKDF2 */ 1651 if (wpabuf_len(pw) == 2 * PMK_LEN) { 1652 if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) { 1653 wpa_msg(wpa_s, MSG_INFO, "EXT PW: " 1654 "Invalid PSK hex string"); 1655 os_memset(pw_str, 0, sizeof(pw_str)); 1656 ext_password_free(pw); 1657 return -1; 1658 } 1659 wpa_hexdump_key(MSG_MSGDUMP, 1660 "PSK (from external PSK)", 1661 psk, PMK_LEN); 1662 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL, 1663 NULL); 1664 psk_set = 1; 1665 os_memset(psk, 0, sizeof(psk)); 1666 } else { 1667 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable " 1668 "PSK available"); 1669 os_memset(pw_str, 0, sizeof(pw_str)); 1670 ext_password_free(pw); 1671 return -1; 1672 } 1673 1674 os_memset(pw_str, 0, sizeof(pw_str)); 1675 ext_password_free(pw); 1676 } 1677#endif /* CONFIG_EXT_PASSWORD */ 1678 1679 if (!psk_set) { 1680 wpa_msg(wpa_s, MSG_INFO, 1681 "No PSK available for association"); 1682 wpas_auth_failed(wpa_s, "NO_PSK_AVAILABLE"); 1683 return -1; 1684 } 1685#ifdef CONFIG_OWE 1686 } else if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE) { 1687 /* OWE Diffie-Hellman exchange in (Re)Association 1688 * Request/Response frames set the PMK, so do not override it 1689 * here. */ 1690#endif /* CONFIG_OWE */ 1691 } else 1692 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); 1693 1694 return 0; 1695} 1696 1697 1698static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx) 1699{ 1700 *pos = 0x00; 1701 1702 switch (idx) { 1703 case 0: /* Bits 0-7 */ 1704 break; 1705 case 1: /* Bits 8-15 */ 1706 if (wpa_s->conf->coloc_intf_reporting) { 1707 /* Bit 13 - Collocated Interference Reporting */ 1708 *pos |= 0x20; 1709 } 1710 break; 1711 case 2: /* Bits 16-23 */ 1712#ifdef CONFIG_WNM 1713 *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */ 1714 if (!wpa_s->conf->disable_btm) 1715 *pos |= 0x08; /* Bit 19 - BSS Transition */ 1716#endif /* CONFIG_WNM */ 1717 break; 1718 case 3: /* Bits 24-31 */ 1719#ifdef CONFIG_WNM 1720 *pos |= 0x02; /* Bit 25 - SSID List */ 1721#endif /* CONFIG_WNM */ 1722#ifdef CONFIG_INTERWORKING 1723 if (wpa_s->conf->interworking) 1724 *pos |= 0x80; /* Bit 31 - Interworking */ 1725#endif /* CONFIG_INTERWORKING */ 1726 break; 1727 case 4: /* Bits 32-39 */ 1728#ifdef CONFIG_INTERWORKING 1729 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_QOS_MAPPING) 1730 *pos |= 0x01; /* Bit 32 - QoS Map */ 1731#endif /* CONFIG_INTERWORKING */ 1732 break; 1733 case 5: /* Bits 40-47 */ 1734#ifdef CONFIG_HS20 1735 if (wpa_s->conf->hs20) 1736 *pos |= 0x40; /* Bit 46 - WNM-Notification */ 1737#endif /* CONFIG_HS20 */ 1738#ifdef CONFIG_MBO 1739 *pos |= 0x40; /* Bit 46 - WNM-Notification */ 1740#endif /* CONFIG_MBO */ 1741 break; 1742 case 6: /* Bits 48-55 */ 1743 break; 1744 case 7: /* Bits 56-63 */ 1745 break; 1746 case 8: /* Bits 64-71 */ 1747 if (wpa_s->conf->ftm_responder) 1748 *pos |= 0x40; /* Bit 70 - FTM responder */ 1749 if (wpa_s->conf->ftm_initiator) 1750 *pos |= 0x80; /* Bit 71 - FTM initiator */ 1751 break; 1752 case 9: /* Bits 72-79 */ 1753#ifdef CONFIG_FILS 1754 if (!wpa_s->disable_fils) 1755 *pos |= 0x01; 1756#endif /* CONFIG_FILS */ 1757 break; 1758 } 1759} 1760 1761 1762int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen) 1763{ 1764 u8 *pos = buf; 1765 u8 len = 10, i; 1766 1767 if (len < wpa_s->extended_capa_len) 1768 len = wpa_s->extended_capa_len; 1769 if (buflen < (size_t) len + 2) { 1770 wpa_printf(MSG_INFO, 1771 "Not enough room for building extended capabilities element"); 1772 return -1; 1773 } 1774 1775 *pos++ = WLAN_EID_EXT_CAPAB; 1776 *pos++ = len; 1777 for (i = 0; i < len; i++, pos++) { 1778 wpas_ext_capab_byte(wpa_s, pos, i); 1779 1780 if (i < wpa_s->extended_capa_len) { 1781 *pos &= ~wpa_s->extended_capa_mask[i]; 1782 *pos |= wpa_s->extended_capa[i]; 1783 } 1784 } 1785 1786 while (len > 0 && buf[1 + len] == 0) { 1787 len--; 1788 buf[1] = len; 1789 } 1790 if (len == 0) 1791 return 0; 1792 1793 return 2 + len; 1794} 1795 1796 1797static int wpas_valid_bss(struct wpa_supplicant *wpa_s, 1798 struct wpa_bss *test_bss) 1799{ 1800 struct wpa_bss *bss; 1801 1802 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1803 if (bss == test_bss) 1804 return 1; 1805 } 1806 1807 return 0; 1808} 1809 1810 1811static int wpas_valid_ssid(struct wpa_supplicant *wpa_s, 1812 struct wpa_ssid *test_ssid) 1813{ 1814 struct wpa_ssid *ssid; 1815 1816 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1817 if (ssid == test_ssid) 1818 return 1; 1819 } 1820 1821 return 0; 1822} 1823 1824 1825int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss, 1826 struct wpa_ssid *test_ssid) 1827{ 1828 if (test_bss && !wpas_valid_bss(wpa_s, test_bss)) 1829 return 0; 1830 1831 return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid); 1832} 1833 1834 1835void wpas_connect_work_free(struct wpa_connect_work *cwork) 1836{ 1837 if (cwork == NULL) 1838 return; 1839 os_free(cwork); 1840} 1841 1842 1843void wpas_connect_work_done(struct wpa_supplicant *wpa_s) 1844{ 1845 struct wpa_connect_work *cwork; 1846 struct wpa_radio_work *work = wpa_s->connect_work; 1847 1848 if (!work) 1849 return; 1850 1851 wpa_s->connect_work = NULL; 1852 cwork = work->ctx; 1853 work->ctx = NULL; 1854 wpas_connect_work_free(cwork); 1855 radio_work_done(work); 1856} 1857 1858 1859int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style) 1860{ 1861 struct os_reltime now; 1862 u8 addr[ETH_ALEN]; 1863 1864 os_get_reltime(&now); 1865 if (wpa_s->last_mac_addr_style == style && 1866 wpa_s->last_mac_addr_change.sec != 0 && 1867 !os_reltime_expired(&now, &wpa_s->last_mac_addr_change, 1868 wpa_s->conf->rand_addr_lifetime)) { 1869 wpa_msg(wpa_s, MSG_DEBUG, 1870 "Previously selected random MAC address has not yet expired"); 1871 return 0; 1872 } 1873 1874 switch (style) { 1875 case 1: 1876 if (random_mac_addr(addr) < 0) 1877 return -1; 1878 break; 1879 case 2: 1880 os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN); 1881 if (random_mac_addr_keep_oui(addr) < 0) 1882 return -1; 1883 break; 1884 default: 1885 return -1; 1886 } 1887 1888 if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) { 1889 wpa_msg(wpa_s, MSG_INFO, 1890 "Failed to set random MAC address"); 1891 return -1; 1892 } 1893 1894 os_get_reltime(&wpa_s->last_mac_addr_change); 1895 wpa_s->mac_addr_changed = 1; 1896 wpa_s->last_mac_addr_style = style; 1897 1898 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) { 1899 wpa_msg(wpa_s, MSG_INFO, 1900 "Could not update MAC address information"); 1901 return -1; 1902 } 1903 1904 wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR, 1905 MAC2STR(addr)); 1906 1907 return 0; 1908} 1909 1910 1911int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s) 1912{ 1913 if (wpa_s->wpa_state >= WPA_AUTHENTICATING || 1914 !wpa_s->conf->preassoc_mac_addr) 1915 return 0; 1916 1917 return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr); 1918} 1919 1920 1921static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit); 1922 1923/** 1924 * wpa_supplicant_associate - Request association 1925 * @wpa_s: Pointer to wpa_supplicant data 1926 * @bss: Scan results for the selected BSS, or %NULL if not available 1927 * @ssid: Configuration data for the selected network 1928 * 1929 * This function is used to request %wpa_supplicant to associate with a BSS. 1930 */ 1931void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, 1932 struct wpa_bss *bss, struct wpa_ssid *ssid) 1933{ 1934 struct wpa_connect_work *cwork; 1935 int rand_style; 1936 1937 wpa_s->own_disconnect_req = 0; 1938 1939 /* 1940 * If we are starting a new connection, any previously pending EAPOL 1941 * RX cannot be valid anymore. 1942 */ 1943 wpabuf_free(wpa_s->pending_eapol_rx); 1944 wpa_s->pending_eapol_rx = NULL; 1945 1946 if (ssid->mac_addr == -1) 1947 rand_style = wpa_s->conf->mac_addr; 1948 else 1949 rand_style = ssid->mac_addr; 1950 1951 wmm_ac_clear_saved_tspecs(wpa_s); 1952 wpa_s->reassoc_same_bss = 0; 1953 wpa_s->reassoc_same_ess = 0; 1954#ifdef CONFIG_TESTING_OPTIONS 1955 wpa_s->testing_resend_assoc = 0; 1956#endif /* CONFIG_TESTING_OPTIONS */ 1957 1958 if (wpa_s->last_ssid == ssid) { 1959 wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS"); 1960 wpa_s->reassoc_same_ess = 1; 1961 if (wpa_s->current_bss && wpa_s->current_bss == bss) { 1962 wmm_ac_save_tspecs(wpa_s); 1963 wpa_s->reassoc_same_bss = 1; 1964 } else if (wpa_s->current_bss && wpa_s->current_bss != bss) { 1965 os_get_reltime(&wpa_s->roam_start); 1966 } 1967 } 1968 1969 if (rand_style > 0 && !wpa_s->reassoc_same_ess) { 1970 if (wpas_update_random_addr(wpa_s, rand_style) < 0) 1971 return; 1972 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid); 1973 } else if (rand_style == 0 && wpa_s->mac_addr_changed) { 1974 if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) { 1975 wpa_msg(wpa_s, MSG_INFO, 1976 "Could not restore permanent MAC address"); 1977 return; 1978 } 1979 wpa_s->mac_addr_changed = 0; 1980 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) { 1981 wpa_msg(wpa_s, MSG_INFO, 1982 "Could not update MAC address information"); 1983 return; 1984 } 1985 wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address"); 1986 } 1987 wpa_s->last_ssid = ssid; 1988 1989#ifdef CONFIG_IBSS_RSN 1990 ibss_rsn_deinit(wpa_s->ibss_rsn); 1991 wpa_s->ibss_rsn = NULL; 1992#else /* CONFIG_IBSS_RSN */ 1993 if (ssid->mode == WPAS_MODE_IBSS && 1994 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) { 1995 wpa_msg(wpa_s, MSG_INFO, 1996 "IBSS RSN not supported in the build"); 1997 return; 1998 } 1999#endif /* CONFIG_IBSS_RSN */ 2000 2001 if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || 2002 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { 2003#ifdef CONFIG_AP 2004 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { 2005 wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " 2006 "mode"); 2007 return; 2008 } 2009 if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) { 2010 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2011 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 2012 wpas_p2p_ap_setup_failed(wpa_s); 2013 return; 2014 } 2015 wpa_s->current_bss = bss; 2016#else /* CONFIG_AP */ 2017 wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " 2018 "the build"); 2019#endif /* CONFIG_AP */ 2020 return; 2021 } 2022 2023 if (ssid->mode == WPAS_MODE_MESH) { 2024#ifdef CONFIG_MESH 2025 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MESH)) { 2026 wpa_msg(wpa_s, MSG_INFO, 2027 "Driver does not support mesh mode"); 2028 return; 2029 } 2030 if (bss) 2031 ssid->frequency = bss->freq; 2032 if (wpa_supplicant_join_mesh(wpa_s, ssid) < 0) { 2033 wpa_msg(wpa_s, MSG_ERROR, "Could not join mesh"); 2034 return; 2035 } 2036 wpa_s->current_bss = bss; 2037 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_STARTED "ssid=\"%s\" id=%d", 2038 wpa_ssid_txt(ssid->ssid, ssid->ssid_len), 2039 ssid->id); 2040 wpas_notify_mesh_group_started(wpa_s, ssid); 2041#else /* CONFIG_MESH */ 2042 wpa_msg(wpa_s, MSG_ERROR, 2043 "mesh mode support not included in the build"); 2044#endif /* CONFIG_MESH */ 2045 return; 2046 } 2047 2048 /* 2049 * Set WPA state machine configuration to match the selected network now 2050 * so that the information is available before wpas_start_assoc_cb() 2051 * gets called. This is needed at least for RSN pre-authentication where 2052 * candidate APs are added to a list based on scan result processing 2053 * before completion of the first association. 2054 */ 2055 wpa_supplicant_rsn_supp_set_config(wpa_s, ssid); 2056 2057#ifdef CONFIG_DPP 2058 if (wpas_dpp_check_connect(wpa_s, ssid, bss) != 0) 2059 return; 2060#endif /* CONFIG_DPP */ 2061 2062#ifdef CONFIG_TDLS 2063 if (bss) 2064 wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), 2065 bss->ie_len); 2066#endif /* CONFIG_TDLS */ 2067 2068 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2069 ssid->mode == WPAS_MODE_INFRA) { 2070 sme_authenticate(wpa_s, bss, ssid); 2071 return; 2072 } 2073 2074 if (wpa_s->connect_work) { 2075 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist"); 2076 return; 2077 } 2078 2079 if (radio_work_pending(wpa_s, "connect")) { 2080 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist"); 2081 return; 2082 } 2083 2084#ifdef CONFIG_SME 2085 if (ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) { 2086 /* Clear possibly set auth_alg, if any, from last attempt. */ 2087 wpa_s->sme.auth_alg = WPA_AUTH_ALG_OPEN; 2088 } 2089#endif /* CONFIG_SME */ 2090 2091 wpas_abort_ongoing_scan(wpa_s); 2092 2093 cwork = os_zalloc(sizeof(*cwork)); 2094 if (cwork == NULL) 2095 return; 2096 2097 cwork->bss = bss; 2098 cwork->ssid = ssid; 2099 2100 if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1, 2101 wpas_start_assoc_cb, cwork) < 0) { 2102 os_free(cwork); 2103 } 2104} 2105 2106 2107static int bss_is_ibss(struct wpa_bss *bss) 2108{ 2109 return (bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 2110 IEEE80211_CAP_IBSS; 2111} 2112 2113 2114static int drv_supports_vht(struct wpa_supplicant *wpa_s, 2115 const struct wpa_ssid *ssid) 2116{ 2117 enum hostapd_hw_mode hw_mode; 2118 struct hostapd_hw_modes *mode = NULL; 2119 u8 channel; 2120 int i; 2121 2122 hw_mode = ieee80211_freq_to_chan(ssid->frequency, &channel); 2123 if (hw_mode == NUM_HOSTAPD_MODES) 2124 return 0; 2125 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) { 2126 if (wpa_s->hw.modes[i].mode == hw_mode) { 2127 mode = &wpa_s->hw.modes[i]; 2128 break; 2129 } 2130 } 2131 2132 if (!mode) 2133 return 0; 2134 2135 return mode->vht_capab != 0; 2136} 2137 2138 2139void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s, 2140 const struct wpa_ssid *ssid, 2141 struct hostapd_freq_params *freq) 2142{ 2143 int ieee80211_mode = wpas_mode_to_ieee80211_mode(ssid->mode); 2144 enum hostapd_hw_mode hw_mode; 2145 struct hostapd_hw_modes *mode = NULL; 2146 int ht40plus[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157, 2147 184, 192 }; 2148 int vht80[] = { 36, 52, 100, 116, 132, 149 }; 2149 struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL; 2150 u8 channel; 2151 int i, chan_idx, ht40 = -1, res, obss_scan = 1; 2152 unsigned int j, k; 2153 struct hostapd_freq_params vht_freq; 2154 int chwidth, seg0, seg1; 2155 u32 vht_caps = 0; 2156 2157 freq->freq = ssid->frequency; 2158 2159 for (j = 0; j < wpa_s->last_scan_res_used; j++) { 2160 struct wpa_bss *bss = wpa_s->last_scan_res[j]; 2161 2162 if (ssid->mode != WPAS_MODE_IBSS) 2163 break; 2164 2165 /* Don't adjust control freq in case of fixed_freq */ 2166 if (ssid->fixed_freq) 2167 break; 2168 2169 if (!bss_is_ibss(bss)) 2170 continue; 2171 2172 if (ssid->ssid_len == bss->ssid_len && 2173 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) == 0) { 2174 wpa_printf(MSG_DEBUG, 2175 "IBSS already found in scan results, adjust control freq: %d", 2176 bss->freq); 2177 freq->freq = bss->freq; 2178 obss_scan = 0; 2179 break; 2180 } 2181 } 2182 2183 /* For IBSS check HT_IBSS flag */ 2184 if (ssid->mode == WPAS_MODE_IBSS && 2185 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_HT_IBSS)) 2186 return; 2187 2188 if (wpa_s->group_cipher == WPA_CIPHER_WEP40 || 2189 wpa_s->group_cipher == WPA_CIPHER_WEP104 || 2190 wpa_s->pairwise_cipher == WPA_CIPHER_TKIP) { 2191 wpa_printf(MSG_DEBUG, 2192 "IBSS: WEP/TKIP detected, do not try to enable HT"); 2193 return; 2194 } 2195 2196 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel); 2197 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) { 2198 if (wpa_s->hw.modes[i].mode == hw_mode) { 2199 mode = &wpa_s->hw.modes[i]; 2200 break; 2201 } 2202 } 2203 2204 if (!mode) 2205 return; 2206 2207 /* HE can work without HT + VHT */ 2208 freq->he_enabled = mode->he_capab[ieee80211_mode].he_supported; 2209 2210#ifdef CONFIG_HT_OVERRIDES 2211 if (ssid->disable_ht) { 2212 freq->ht_enabled = 0; 2213 return; 2214 } 2215#endif /* CONFIG_HT_OVERRIDES */ 2216 2217 freq->ht_enabled = ht_supported(mode); 2218 if (!freq->ht_enabled) 2219 return; 2220 2221 /* Setup higher BW only for 5 GHz */ 2222 if (mode->mode != HOSTAPD_MODE_IEEE80211A) 2223 return; 2224 2225 for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) { 2226 pri_chan = &mode->channels[chan_idx]; 2227 if (pri_chan->chan == channel) 2228 break; 2229 pri_chan = NULL; 2230 } 2231 if (!pri_chan) 2232 return; 2233 2234 /* Check primary channel flags */ 2235 if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR)) 2236 return; 2237 2238 freq->channel = pri_chan->chan; 2239 2240#ifdef CONFIG_HT_OVERRIDES 2241 if (ssid->disable_ht40) { 2242 if (ssid->disable_vht) 2243 return; 2244 goto skip_ht40; 2245 } 2246#endif /* CONFIG_HT_OVERRIDES */ 2247 2248 /* Check/setup HT40+/HT40- */ 2249 for (j = 0; j < ARRAY_SIZE(ht40plus); j++) { 2250 if (ht40plus[j] == channel) { 2251 ht40 = 1; 2252 break; 2253 } 2254 } 2255 2256 /* Find secondary channel */ 2257 for (i = 0; i < mode->num_channels; i++) { 2258 sec_chan = &mode->channels[i]; 2259 if (sec_chan->chan == channel + ht40 * 4) 2260 break; 2261 sec_chan = NULL; 2262 } 2263 if (!sec_chan) 2264 return; 2265 2266 /* Check secondary channel flags */ 2267 if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR)) 2268 return; 2269 2270 if (ht40 == -1) { 2271 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS)) 2272 return; 2273 } else { 2274 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS)) 2275 return; 2276 } 2277 freq->sec_channel_offset = ht40; 2278 2279 if (obss_scan) { 2280 struct wpa_scan_results *scan_res; 2281 2282 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0); 2283 if (scan_res == NULL) { 2284 /* Back to HT20 */ 2285 freq->sec_channel_offset = 0; 2286 return; 2287 } 2288 2289 res = check_40mhz_5g(mode, scan_res, pri_chan->chan, 2290 sec_chan->chan); 2291 switch (res) { 2292 case 0: 2293 /* Back to HT20 */ 2294 freq->sec_channel_offset = 0; 2295 break; 2296 case 1: 2297 /* Configuration allowed */ 2298 break; 2299 case 2: 2300 /* Switch pri/sec channels */ 2301 freq->freq = hw_get_freq(mode, sec_chan->chan); 2302 freq->sec_channel_offset = -freq->sec_channel_offset; 2303 freq->channel = sec_chan->chan; 2304 break; 2305 default: 2306 freq->sec_channel_offset = 0; 2307 break; 2308 } 2309 2310 wpa_scan_results_free(scan_res); 2311 } 2312 2313#ifdef CONFIG_HT_OVERRIDES 2314skip_ht40: 2315#endif /* CONFIG_HT_OVERRIDES */ 2316 wpa_printf(MSG_DEBUG, 2317 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d", 2318 freq->channel, freq->sec_channel_offset); 2319 2320 if (!drv_supports_vht(wpa_s, ssid)) 2321 return; 2322 2323 /* For IBSS check VHT_IBSS flag */ 2324 if (ssid->mode == WPAS_MODE_IBSS && 2325 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS)) 2326 return; 2327 2328 vht_freq = *freq; 2329 2330#ifdef CONFIG_VHT_OVERRIDES 2331 if (ssid->disable_vht) { 2332 freq->vht_enabled = 0; 2333 return; 2334 } 2335#endif /* CONFIG_VHT_OVERRIDES */ 2336 2337 vht_freq.vht_enabled = vht_supported(mode); 2338 if (!vht_freq.vht_enabled) 2339 return; 2340 2341 /* setup center_freq1, bandwidth */ 2342 for (j = 0; j < ARRAY_SIZE(vht80); j++) { 2343 if (freq->channel >= vht80[j] && 2344 freq->channel < vht80[j] + 16) 2345 break; 2346 } 2347 2348 if (j == ARRAY_SIZE(vht80)) 2349 return; 2350 2351 for (i = vht80[j]; i < vht80[j] + 16; i += 4) { 2352 struct hostapd_channel_data *chan; 2353 2354 chan = hw_get_channel_chan(mode, i, NULL); 2355 if (!chan) 2356 return; 2357 2358 /* Back to HT configuration if channel not usable */ 2359 if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR)) 2360 return; 2361 } 2362 2363 chwidth = CHANWIDTH_80MHZ; 2364 seg0 = vht80[j] + 6; 2365 seg1 = 0; 2366 2367 if (ssid->max_oper_chwidth == CHANWIDTH_80P80MHZ) { 2368 /* setup center_freq2, bandwidth */ 2369 for (k = 0; k < ARRAY_SIZE(vht80); k++) { 2370 /* Only accept 80 MHz segments separated by a gap */ 2371 if (j == k || abs(vht80[j] - vht80[k]) == 16) 2372 continue; 2373 for (i = vht80[k]; i < vht80[k] + 16; i += 4) { 2374 struct hostapd_channel_data *chan; 2375 2376 chan = hw_get_channel_chan(mode, i, NULL); 2377 if (!chan) 2378 continue; 2379 2380 if (chan->flag & (HOSTAPD_CHAN_DISABLED | 2381 HOSTAPD_CHAN_NO_IR | 2382 HOSTAPD_CHAN_RADAR)) 2383 continue; 2384 2385 /* Found a suitable second segment for 80+80 */ 2386 chwidth = CHANWIDTH_80P80MHZ; 2387 vht_caps |= 2388 VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; 2389 seg1 = vht80[k] + 6; 2390 } 2391 2392 if (chwidth == CHANWIDTH_80P80MHZ) 2393 break; 2394 } 2395 } else if (ssid->max_oper_chwidth == CHANWIDTH_160MHZ) { 2396 if (freq->freq == 5180) { 2397 chwidth = CHANWIDTH_160MHZ; 2398 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 2399 seg0 = 50; 2400 } else if (freq->freq == 5520) { 2401 chwidth = CHANWIDTH_160MHZ; 2402 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 2403 seg0 = 114; 2404 } 2405 } else if (ssid->max_oper_chwidth == CHANWIDTH_USE_HT) { 2406 chwidth = CHANWIDTH_USE_HT; 2407 seg0 = vht80[j] + 2; 2408#ifdef CONFIG_HT_OVERRIDES 2409 if (ssid->disable_ht40) 2410 seg0 = 0; 2411#endif /* CONFIG_HT_OVERRIDES */ 2412 } 2413 2414 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq, 2415 freq->channel, freq->ht_enabled, 2416 vht_freq.vht_enabled, freq->he_enabled, 2417 freq->sec_channel_offset, 2418 chwidth, seg0, seg1, vht_caps, 2419 &mode->he_capab[ieee80211_mode]) != 0) 2420 return; 2421 2422 *freq = vht_freq; 2423 2424 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d", 2425 freq->center_freq1, freq->center_freq2, freq->bandwidth); 2426} 2427 2428 2429#ifdef CONFIG_FILS 2430static size_t wpas_add_fils_hlp_req(struct wpa_supplicant *wpa_s, u8 *ie_buf, 2431 size_t ie_buf_len) 2432{ 2433 struct fils_hlp_req *req; 2434 size_t rem_len, hdr_len, hlp_len, len, ie_len = 0; 2435 const u8 *pos; 2436 u8 *buf = ie_buf; 2437 2438 dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req, 2439 list) { 2440 rem_len = ie_buf_len - ie_len; 2441 pos = wpabuf_head(req->pkt); 2442 hdr_len = 1 + 2 * ETH_ALEN + 6; 2443 hlp_len = wpabuf_len(req->pkt); 2444 2445 if (rem_len < 2 + hdr_len + hlp_len) { 2446 wpa_printf(MSG_ERROR, 2447 "FILS: Cannot fit HLP - rem_len=%lu to_fill=%lu", 2448 (unsigned long) rem_len, 2449 (unsigned long) (2 + hdr_len + hlp_len)); 2450 break; 2451 } 2452 2453 len = (hdr_len + hlp_len) > 255 ? 255 : hdr_len + hlp_len; 2454 /* Element ID */ 2455 *buf++ = WLAN_EID_EXTENSION; 2456 /* Length */ 2457 *buf++ = len; 2458 /* Element ID Extension */ 2459 *buf++ = WLAN_EID_EXT_FILS_HLP_CONTAINER; 2460 /* Destination MAC address */ 2461 os_memcpy(buf, req->dst, ETH_ALEN); 2462 buf += ETH_ALEN; 2463 /* Source MAC address */ 2464 os_memcpy(buf, wpa_s->own_addr, ETH_ALEN); 2465 buf += ETH_ALEN; 2466 /* LLC/SNAP Header */ 2467 os_memcpy(buf, "\xaa\xaa\x03\x00\x00\x00", 6); 2468 buf += 6; 2469 /* HLP Packet */ 2470 os_memcpy(buf, pos, len - hdr_len); 2471 buf += len - hdr_len; 2472 pos += len - hdr_len; 2473 2474 hlp_len -= len - hdr_len; 2475 ie_len += 2 + len; 2476 rem_len -= 2 + len; 2477 2478 while (hlp_len) { 2479 len = (hlp_len > 255) ? 255 : hlp_len; 2480 if (rem_len < 2 + len) 2481 break; 2482 *buf++ = WLAN_EID_FRAGMENT; 2483 *buf++ = len; 2484 os_memcpy(buf, pos, len); 2485 buf += len; 2486 pos += len; 2487 2488 hlp_len -= len; 2489 ie_len += 2 + len; 2490 rem_len -= 2 + len; 2491 } 2492 } 2493 2494 return ie_len; 2495} 2496 2497 2498int wpa_is_fils_supported(struct wpa_supplicant *wpa_s) 2499{ 2500 return (((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2501 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SUPPORT_FILS)) || 2502 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2503 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_FILS_SK_OFFLOAD))); 2504} 2505 2506 2507int wpa_is_fils_sk_pfs_supported(struct wpa_supplicant *wpa_s) 2508{ 2509#ifdef CONFIG_FILS_SK_PFS 2510 return (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2511 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SUPPORT_FILS); 2512#else /* CONFIG_FILS_SK_PFS */ 2513 return 0; 2514#endif /* CONFIG_FILS_SK_PFS */ 2515} 2516 2517#endif /* CONFIG_FILS */ 2518 2519 2520static u8 * wpas_populate_assoc_ies( 2521 struct wpa_supplicant *wpa_s, 2522 struct wpa_bss *bss, struct wpa_ssid *ssid, 2523 struct wpa_driver_associate_params *params, 2524 enum wpa_drv_update_connect_params_mask *mask) 2525{ 2526 u8 *wpa_ie; 2527 size_t max_wpa_ie_len = 500; 2528 size_t wpa_ie_len; 2529 int algs = WPA_AUTH_ALG_OPEN; 2530#ifdef CONFIG_MBO 2531 const u8 *mbo_ie; 2532#endif 2533#ifdef CONFIG_SAE 2534 int sae_pmksa_cached = 0; 2535#endif /* CONFIG_SAE */ 2536#ifdef CONFIG_FILS 2537 const u8 *realm, *username, *rrk; 2538 size_t realm_len, username_len, rrk_len; 2539 u16 next_seq_num; 2540 struct fils_hlp_req *req; 2541 2542 dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req, 2543 list) { 2544 max_wpa_ie_len += 3 + 2 * ETH_ALEN + 6 + wpabuf_len(req->pkt) + 2545 2 + 2 * wpabuf_len(req->pkt) / 255; 2546 } 2547#endif /* CONFIG_FILS */ 2548 2549 wpa_ie = os_malloc(max_wpa_ie_len); 2550 if (!wpa_ie) { 2551 wpa_printf(MSG_ERROR, 2552 "Failed to allocate connect IE buffer for %lu bytes", 2553 (unsigned long) max_wpa_ie_len); 2554 return NULL; 2555 } 2556 2557 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || 2558 wpa_bss_get_ie(bss, WLAN_EID_RSN)) && 2559 wpa_key_mgmt_wpa(ssid->key_mgmt)) { 2560 int try_opportunistic; 2561 const u8 *cache_id = NULL; 2562 2563 try_opportunistic = (ssid->proactive_key_caching < 0 ? 2564 wpa_s->conf->okc : 2565 ssid->proactive_key_caching) && 2566 (ssid->proto & WPA_PROTO_RSN); 2567#ifdef CONFIG_FILS 2568 if (wpa_key_mgmt_fils(ssid->key_mgmt)) 2569 cache_id = wpa_bss_get_fils_cache_id(bss); 2570#endif /* CONFIG_FILS */ 2571 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, 2572 ssid, try_opportunistic, 2573 cache_id, 0) == 0) { 2574 eapol_sm_notify_pmkid_attempt(wpa_s->eapol); 2575#ifdef CONFIG_SAE 2576 sae_pmksa_cached = 1; 2577#endif /* CONFIG_SAE */ 2578 } 2579 wpa_ie_len = max_wpa_ie_len; 2580 if (wpa_supplicant_set_suites(wpa_s, bss, ssid, 2581 wpa_ie, &wpa_ie_len)) { 2582 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " 2583 "key management and encryption suites"); 2584 os_free(wpa_ie); 2585 return NULL; 2586 } 2587#ifdef CONFIG_HS20 2588 } else if (bss && wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE) && 2589 (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)) { 2590 /* No PMKSA caching, but otherwise similar to RSN/WPA */ 2591 wpa_ie_len = max_wpa_ie_len; 2592 if (wpa_supplicant_set_suites(wpa_s, bss, ssid, 2593 wpa_ie, &wpa_ie_len)) { 2594 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " 2595 "key management and encryption suites"); 2596 os_free(wpa_ie); 2597 return NULL; 2598 } 2599#endif /* CONFIG_HS20 */ 2600 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss && 2601 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { 2602 /* 2603 * Both WPA and non-WPA IEEE 802.1X enabled in configuration - 2604 * use non-WPA since the scan results did not indicate that the 2605 * AP is using WPA or WPA2. 2606 */ 2607 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 2608 wpa_ie_len = 0; 2609 wpa_s->wpa_proto = 0; 2610 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 2611 wpa_ie_len = max_wpa_ie_len; 2612 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 2613 wpa_ie, &wpa_ie_len)) { 2614 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " 2615 "key management and encryption suites (no " 2616 "scan results)"); 2617 os_free(wpa_ie); 2618 return NULL; 2619 } 2620#ifdef CONFIG_WPS 2621 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 2622 struct wpabuf *wps_ie; 2623 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); 2624 if (wps_ie && wpabuf_len(wps_ie) <= max_wpa_ie_len) { 2625 wpa_ie_len = wpabuf_len(wps_ie); 2626 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); 2627 } else 2628 wpa_ie_len = 0; 2629 wpabuf_free(wps_ie); 2630 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 2631 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) 2632 params->wps = WPS_MODE_PRIVACY; 2633 else 2634 params->wps = WPS_MODE_OPEN; 2635 wpa_s->wpa_proto = 0; 2636#endif /* CONFIG_WPS */ 2637 } else { 2638 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 2639 wpa_ie_len = 0; 2640 wpa_s->wpa_proto = 0; 2641 } 2642 2643#ifdef IEEE8021X_EAPOL 2644 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 2645 if (ssid->leap) { 2646 if (ssid->non_leap == 0) 2647 algs = WPA_AUTH_ALG_LEAP; 2648 else 2649 algs |= WPA_AUTH_ALG_LEAP; 2650 } 2651 } 2652 2653#ifdef CONFIG_FILS 2654 /* Clear FILS association */ 2655 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 0); 2656 2657 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_FILS_SK_OFFLOAD) && 2658 ssid->eap.erp && wpa_key_mgmt_fils(wpa_s->key_mgmt) && 2659 eapol_sm_get_erp_info(wpa_s->eapol, &ssid->eap, &username, 2660 &username_len, &realm, &realm_len, 2661 &next_seq_num, &rrk, &rrk_len) == 0 && 2662 (!wpa_s->last_con_fail_realm || 2663 wpa_s->last_con_fail_realm_len != realm_len || 2664 os_memcmp(wpa_s->last_con_fail_realm, realm, realm_len) != 0)) { 2665 algs = WPA_AUTH_ALG_FILS; 2666 params->fils_erp_username = username; 2667 params->fils_erp_username_len = username_len; 2668 params->fils_erp_realm = realm; 2669 params->fils_erp_realm_len = realm_len; 2670 params->fils_erp_next_seq_num = next_seq_num; 2671 params->fils_erp_rrk = rrk; 2672 params->fils_erp_rrk_len = rrk_len; 2673 2674 if (mask) 2675 *mask |= WPA_DRV_UPDATE_FILS_ERP_INFO; 2676 } 2677#endif /* CONFIG_FILS */ 2678#endif /* IEEE8021X_EAPOL */ 2679#ifdef CONFIG_SAE 2680 if (wpa_s->key_mgmt & (WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE)) 2681 algs = WPA_AUTH_ALG_SAE; 2682#endif /* CONFIG_SAE */ 2683 2684 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); 2685 if (ssid->auth_alg) { 2686 algs = ssid->auth_alg; 2687 wpa_dbg(wpa_s, MSG_DEBUG, 2688 "Overriding auth_alg selection: 0x%x", algs); 2689 } 2690 2691#ifdef CONFIG_SAE 2692 if (sae_pmksa_cached && algs == WPA_AUTH_ALG_SAE) { 2693 wpa_dbg(wpa_s, MSG_DEBUG, 2694 "SAE: Use WPA_AUTH_ALG_OPEN for PMKSA caching attempt"); 2695 algs = WPA_AUTH_ALG_OPEN; 2696 } 2697#endif /* CONFIG_SAE */ 2698 2699#ifdef CONFIG_P2P 2700 if (wpa_s->global->p2p) { 2701 u8 *pos; 2702 size_t len; 2703 int res; 2704 pos = wpa_ie + wpa_ie_len; 2705 len = max_wpa_ie_len - wpa_ie_len; 2706 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, 2707 ssid->p2p_group); 2708 if (res >= 0) 2709 wpa_ie_len += res; 2710 } 2711 2712 wpa_s->cross_connect_disallowed = 0; 2713 if (bss) { 2714 struct wpabuf *p2p; 2715 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); 2716 if (p2p) { 2717 wpa_s->cross_connect_disallowed = 2718 p2p_get_cross_connect_disallowed(p2p); 2719 wpabuf_free(p2p); 2720 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " 2721 "connection", 2722 wpa_s->cross_connect_disallowed ? 2723 "disallows" : "allows"); 2724 } 2725 } 2726 2727 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info)); 2728#endif /* CONFIG_P2P */ 2729 2730 if (bss) { 2731 wpa_ie_len += wpas_supp_op_class_ie(wpa_s, ssid, bss->freq, 2732 wpa_ie + wpa_ie_len, 2733 max_wpa_ie_len - 2734 wpa_ie_len); 2735 } 2736 2737 /* 2738 * Workaround: Add Extended Capabilities element only if the AP 2739 * included this element in Beacon/Probe Response frames. Some older 2740 * APs seem to have interoperability issues if this element is 2741 * included, so while the standard may require us to include the 2742 * element in all cases, it is justifiable to skip it to avoid 2743 * interoperability issues. 2744 */ 2745 if (ssid->p2p_group) 2746 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT); 2747 else 2748 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION); 2749 2750 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) { 2751 u8 ext_capab[18]; 2752 int ext_capab_len; 2753 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab, 2754 sizeof(ext_capab)); 2755 if (ext_capab_len > 0 && 2756 wpa_ie_len + ext_capab_len <= max_wpa_ie_len) { 2757 u8 *pos = wpa_ie; 2758 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) 2759 pos += 2 + pos[1]; 2760 os_memmove(pos + ext_capab_len, pos, 2761 wpa_ie_len - (pos - wpa_ie)); 2762 wpa_ie_len += ext_capab_len; 2763 os_memcpy(pos, ext_capab, ext_capab_len); 2764 } 2765 } 2766 2767#ifdef CONFIG_HS20 2768 if (is_hs20_network(wpa_s, ssid, bss)) { 2769 struct wpabuf *hs20; 2770 2771 hs20 = wpabuf_alloc(20 + MAX_ROAMING_CONS_OI_LEN); 2772 if (hs20) { 2773 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid); 2774 size_t len; 2775 2776 wpas_hs20_add_indication(hs20, pps_mo_id, 2777 get_hs20_version(bss)); 2778 wpas_hs20_add_roam_cons_sel(hs20, ssid); 2779 len = max_wpa_ie_len - wpa_ie_len; 2780 if (wpabuf_len(hs20) <= len) { 2781 os_memcpy(wpa_ie + wpa_ie_len, 2782 wpabuf_head(hs20), wpabuf_len(hs20)); 2783 wpa_ie_len += wpabuf_len(hs20); 2784 } 2785 wpabuf_free(hs20); 2786 2787 hs20_configure_frame_filters(wpa_s); 2788 } 2789 } 2790#endif /* CONFIG_HS20 */ 2791 2792 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) { 2793 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]; 2794 size_t len; 2795 2796 len = max_wpa_ie_len - wpa_ie_len; 2797 if (wpabuf_len(buf) <= len) { 2798 os_memcpy(wpa_ie + wpa_ie_len, 2799 wpabuf_head(buf), wpabuf_len(buf)); 2800 wpa_ie_len += wpabuf_len(buf); 2801 } 2802 } 2803 2804#ifdef CONFIG_FST 2805 if (wpa_s->fst_ies) { 2806 int fst_ies_len = wpabuf_len(wpa_s->fst_ies); 2807 2808 if (wpa_ie_len + fst_ies_len <= max_wpa_ie_len) { 2809 os_memcpy(wpa_ie + wpa_ie_len, 2810 wpabuf_head(wpa_s->fst_ies), fst_ies_len); 2811 wpa_ie_len += fst_ies_len; 2812 } 2813 } 2814#endif /* CONFIG_FST */ 2815 2816#ifdef CONFIG_MBO 2817 mbo_ie = bss ? wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE) : NULL; 2818 if (mbo_ie) { 2819 int len; 2820 2821 len = wpas_mbo_ie(wpa_s, wpa_ie + wpa_ie_len, 2822 max_wpa_ie_len - wpa_ie_len, 2823 !!mbo_attr_from_mbo_ie(mbo_ie, 2824 OCE_ATTR_ID_CAPA_IND)); 2825 if (len >= 0) 2826 wpa_ie_len += len; 2827 } 2828#endif /* CONFIG_MBO */ 2829 2830#ifdef CONFIG_FILS 2831 if (algs == WPA_AUTH_ALG_FILS) { 2832 size_t len; 2833 2834 len = wpas_add_fils_hlp_req(wpa_s, wpa_ie + wpa_ie_len, 2835 max_wpa_ie_len - wpa_ie_len); 2836 wpa_ie_len += len; 2837 } 2838#endif /* CONFIG_FILS */ 2839 2840#ifdef CONFIG_OWE 2841#ifdef CONFIG_TESTING_OPTIONS 2842 if (get_ie_ext(wpa_ie, wpa_ie_len, WLAN_EID_EXT_OWE_DH_PARAM)) { 2843 wpa_printf(MSG_INFO, "TESTING: Override OWE DH element"); 2844 } else 2845#endif /* CONFIG_TESTING_OPTIONS */ 2846 if (algs == WPA_AUTH_ALG_OPEN && 2847 ssid->key_mgmt == WPA_KEY_MGMT_OWE) { 2848 struct wpabuf *owe_ie; 2849 u16 group; 2850 2851 if (ssid->owe_group) { 2852 group = ssid->owe_group; 2853 } else if (wpa_s->assoc_status_code == 2854 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED) { 2855 if (wpa_s->last_owe_group == 19) 2856 group = 20; 2857 else if (wpa_s->last_owe_group == 20) 2858 group = 21; 2859 else 2860 group = OWE_DH_GROUP; 2861 } else { 2862 group = OWE_DH_GROUP; 2863 } 2864 2865 wpa_s->last_owe_group = group; 2866 wpa_printf(MSG_DEBUG, "OWE: Try to use group %u", group); 2867 owe_ie = owe_build_assoc_req(wpa_s->wpa, group); 2868 if (owe_ie && 2869 wpabuf_len(owe_ie) <= max_wpa_ie_len - wpa_ie_len) { 2870 os_memcpy(wpa_ie + wpa_ie_len, 2871 wpabuf_head(owe_ie), wpabuf_len(owe_ie)); 2872 wpa_ie_len += wpabuf_len(owe_ie); 2873 } 2874 wpabuf_free(owe_ie); 2875 } 2876#endif /* CONFIG_OWE */ 2877 2878#ifdef CONFIG_DPP2 2879 if (wpa_sm_get_key_mgmt(wpa_s->wpa) == WPA_KEY_MGMT_DPP && 2880 ssid->dpp_netaccesskey) { 2881 dpp_pfs_free(wpa_s->dpp_pfs); 2882 wpa_s->dpp_pfs = dpp_pfs_init(ssid->dpp_netaccesskey, 2883 ssid->dpp_netaccesskey_len); 2884 if (!wpa_s->dpp_pfs) { 2885 wpa_printf(MSG_DEBUG, "DPP: Could not initialize PFS"); 2886 /* Try to continue without PFS */ 2887 goto pfs_fail; 2888 } 2889 if (wpabuf_len(wpa_s->dpp_pfs->ie) <= 2890 max_wpa_ie_len - wpa_ie_len) { 2891 os_memcpy(wpa_ie + wpa_ie_len, 2892 wpabuf_head(wpa_s->dpp_pfs->ie), 2893 wpabuf_len(wpa_s->dpp_pfs->ie)); 2894 wpa_ie_len += wpabuf_len(wpa_s->dpp_pfs->ie); 2895 } 2896 } 2897pfs_fail: 2898#endif /* CONFIG_DPP2 */ 2899 2900#ifdef CONFIG_IEEE80211R 2901 /* 2902 * Add MDIE under these conditions: the network profile allows FT, 2903 * the AP supports FT, and the mobility domain ID matches. 2904 */ 2905 if (bss && wpa_key_mgmt_ft(wpa_sm_get_key_mgmt(wpa_s->wpa))) { 2906 const u8 *mdie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); 2907 2908 if (mdie && mdie[1] >= MOBILITY_DOMAIN_ID_LEN) { 2909 size_t len = 0; 2910 const u8 *md = mdie + 2; 2911 const u8 *wpa_md = wpa_sm_get_ft_md(wpa_s->wpa); 2912 2913 if (os_memcmp(md, wpa_md, 2914 MOBILITY_DOMAIN_ID_LEN) == 0) { 2915 /* Add mobility domain IE */ 2916 len = wpa_ft_add_mdie( 2917 wpa_s->wpa, wpa_ie + wpa_ie_len, 2918 max_wpa_ie_len - wpa_ie_len, mdie); 2919 wpa_ie_len += len; 2920 } 2921#ifdef CONFIG_SME 2922 if (len > 0 && wpa_s->sme.ft_used && 2923 wpa_sm_has_ptk(wpa_s->wpa)) { 2924 wpa_dbg(wpa_s, MSG_DEBUG, 2925 "SME: Trying to use FT over-the-air"); 2926 algs |= WPA_AUTH_ALG_FT; 2927 } 2928#endif /* CONFIG_SME */ 2929 } 2930 } 2931#endif /* CONFIG_IEEE80211R */ 2932 2933 if (ssid->multi_ap_backhaul_sta) { 2934 size_t multi_ap_ie_len; 2935 2936 multi_ap_ie_len = add_multi_ap_ie(wpa_ie + wpa_ie_len, 2937 max_wpa_ie_len - wpa_ie_len, 2938 MULTI_AP_BACKHAUL_STA); 2939 if (multi_ap_ie_len == 0) { 2940 wpa_printf(MSG_ERROR, 2941 "Multi-AP: Failed to build Multi-AP IE"); 2942 os_free(wpa_ie); 2943 return NULL; 2944 } 2945 wpa_ie_len += multi_ap_ie_len; 2946 } 2947 2948 params->wpa_ie = wpa_ie; 2949 params->wpa_ie_len = wpa_ie_len; 2950 params->auth_alg = algs; 2951 if (mask) 2952 *mask |= WPA_DRV_UPDATE_ASSOC_IES | WPA_DRV_UPDATE_AUTH_TYPE; 2953 2954 return wpa_ie; 2955} 2956 2957 2958#if defined(CONFIG_FILS) && defined(IEEE8021X_EAPOL) 2959static void wpas_update_fils_connect_params(struct wpa_supplicant *wpa_s) 2960{ 2961 struct wpa_driver_associate_params params; 2962 enum wpa_drv_update_connect_params_mask mask = 0; 2963 u8 *wpa_ie; 2964 2965 if (wpa_s->auth_alg != WPA_AUTH_ALG_OPEN) 2966 return; /* nothing to do */ 2967 2968 os_memset(¶ms, 0, sizeof(params)); 2969 wpa_ie = wpas_populate_assoc_ies(wpa_s, wpa_s->current_bss, 2970 wpa_s->current_ssid, ¶ms, &mask); 2971 if (!wpa_ie) 2972 return; 2973 2974 if (params.auth_alg != WPA_AUTH_ALG_FILS) { 2975 os_free(wpa_ie); 2976 return; 2977 } 2978 2979 wpa_s->auth_alg = params.auth_alg; 2980 wpa_drv_update_connect_params(wpa_s, ¶ms, mask); 2981 os_free(wpa_ie); 2982} 2983#endif /* CONFIG_FILS && IEEE8021X_EAPOL */ 2984 2985 2986#ifdef CONFIG_MBO 2987void wpas_update_mbo_connect_params(struct wpa_supplicant *wpa_s) 2988{ 2989 struct wpa_driver_associate_params params; 2990 u8 *wpa_ie; 2991 2992 /* 2993 * Update MBO connect params only in case of change of MBO attributes 2994 * when connected, if the AP support MBO. 2995 */ 2996 2997 if (wpa_s->wpa_state != WPA_COMPLETED || !wpa_s->current_ssid || 2998 !wpa_s->current_bss || 2999 !wpa_bss_get_vendor_ie(wpa_s->current_bss, MBO_IE_VENDOR_TYPE)) 3000 return; 3001 3002 os_memset(¶ms, 0, sizeof(params)); 3003 wpa_ie = wpas_populate_assoc_ies(wpa_s, wpa_s->current_bss, 3004 wpa_s->current_ssid, ¶ms, NULL); 3005 if (!wpa_ie) 3006 return; 3007 3008 wpa_drv_update_connect_params(wpa_s, ¶ms, WPA_DRV_UPDATE_ASSOC_IES); 3009 os_free(wpa_ie); 3010} 3011#endif /* CONFIG_MBO */ 3012 3013 3014static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit) 3015{ 3016 struct wpa_connect_work *cwork = work->ctx; 3017 struct wpa_bss *bss = cwork->bss; 3018 struct wpa_ssid *ssid = cwork->ssid; 3019 struct wpa_supplicant *wpa_s = work->wpa_s; 3020 u8 *wpa_ie; 3021 int use_crypt, ret, i, bssid_changed; 3022 unsigned int cipher_pairwise, cipher_group, cipher_group_mgmt; 3023 struct wpa_driver_associate_params params; 3024 int wep_keys_set = 0; 3025 int assoc_failed = 0; 3026 struct wpa_ssid *old_ssid; 3027 u8 prev_bssid[ETH_ALEN]; 3028#ifdef CONFIG_HT_OVERRIDES 3029 struct ieee80211_ht_capabilities htcaps; 3030 struct ieee80211_ht_capabilities htcaps_mask; 3031#endif /* CONFIG_HT_OVERRIDES */ 3032#ifdef CONFIG_VHT_OVERRIDES 3033 struct ieee80211_vht_capabilities vhtcaps; 3034 struct ieee80211_vht_capabilities vhtcaps_mask; 3035#endif /* CONFIG_VHT_OVERRIDES */ 3036 3037 if (deinit) { 3038 if (work->started) { 3039 wpa_s->connect_work = NULL; 3040 3041 /* cancel possible auth. timeout */ 3042 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, 3043 NULL); 3044 } 3045 wpas_connect_work_free(cwork); 3046 return; 3047 } 3048 3049 wpa_s->connect_work = work; 3050 3051 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) || 3052 wpas_network_disabled(wpa_s, ssid)) { 3053 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt"); 3054 wpas_connect_work_done(wpa_s); 3055 return; 3056 } 3057 3058 os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN); 3059 os_memset(¶ms, 0, sizeof(params)); 3060 wpa_s->reassociate = 0; 3061 wpa_s->eap_expected_failure = 0; 3062 if (bss && 3063 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) { 3064#ifdef CONFIG_IEEE80211R 3065 const u8 *ie, *md = NULL; 3066#endif /* CONFIG_IEEE80211R */ 3067 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR 3068 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), 3069 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); 3070 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 3071 os_memset(wpa_s->bssid, 0, ETH_ALEN); 3072 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); 3073 if (bssid_changed) 3074 wpas_notify_bssid_changed(wpa_s); 3075#ifdef CONFIG_IEEE80211R 3076 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); 3077 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) 3078 md = ie + 2; 3079 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); 3080 if (md) { 3081 /* Prepare for the next transition */ 3082 wpa_ft_prepare_auth_request(wpa_s->wpa, ie); 3083 } 3084#endif /* CONFIG_IEEE80211R */ 3085#ifdef CONFIG_WPS 3086 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && 3087 wpa_s->conf->ap_scan == 2 && 3088 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 3089 /* Use ap_scan==1 style network selection to find the network 3090 */ 3091 wpas_connect_work_done(wpa_s); 3092 wpa_s->scan_req = MANUAL_SCAN_REQ; 3093 wpa_s->reassociate = 1; 3094 wpa_supplicant_req_scan(wpa_s, 0, 0); 3095 return; 3096#endif /* CONFIG_WPS */ 3097 } else { 3098 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", 3099 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 3100 if (bss) 3101 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); 3102 else 3103 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 3104 } 3105 if (!wpa_s->pno) 3106 wpa_supplicant_cancel_sched_scan(wpa_s); 3107 3108 wpa_supplicant_cancel_scan(wpa_s); 3109 3110 /* Starting new association, so clear the possibly used WPA IE from the 3111 * previous association. */ 3112 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 3113 3114 wpa_ie = wpas_populate_assoc_ies(wpa_s, bss, ssid, ¶ms, NULL); 3115 if (!wpa_ie) { 3116 wpas_connect_work_done(wpa_s); 3117 return; 3118 } 3119 3120 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); 3121 use_crypt = 1; 3122 cipher_pairwise = wpa_s->pairwise_cipher; 3123 cipher_group = wpa_s->group_cipher; 3124 cipher_group_mgmt = wpa_s->mgmt_group_cipher; 3125 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 3126 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 3127 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) 3128 use_crypt = 0; 3129 if (wpa_set_wep_keys(wpa_s, ssid)) { 3130 use_crypt = 1; 3131 wep_keys_set = 1; 3132 } 3133 } 3134 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) 3135 use_crypt = 0; 3136 3137#ifdef IEEE8021X_EAPOL 3138 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 3139 if ((ssid->eapol_flags & 3140 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 3141 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && 3142 !wep_keys_set) { 3143 use_crypt = 0; 3144 } else { 3145 /* Assume that dynamic WEP-104 keys will be used and 3146 * set cipher suites in order for drivers to expect 3147 * encryption. */ 3148 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104; 3149 } 3150 } 3151#endif /* IEEE8021X_EAPOL */ 3152 3153 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 3154 /* Set the key before (and later after) association */ 3155 wpa_supplicant_set_wpa_none_key(wpa_s, ssid); 3156 } 3157 3158 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); 3159 if (bss) { 3160 params.ssid = bss->ssid; 3161 params.ssid_len = bss->ssid_len; 3162 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set || 3163 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 3164 wpa_printf(MSG_DEBUG, "Limit connection to BSSID " 3165 MACSTR " freq=%u MHz based on scan results " 3166 "(bssid_set=%d wps=%d)", 3167 MAC2STR(bss->bssid), bss->freq, 3168 ssid->bssid_set, 3169 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS); 3170 params.bssid = bss->bssid; 3171 params.freq.freq = bss->freq; 3172 } 3173 params.bssid_hint = bss->bssid; 3174 params.freq_hint = bss->freq; 3175 params.pbss = bss_is_pbss(bss); 3176 } else { 3177 if (ssid->bssid_hint_set) 3178 params.bssid_hint = ssid->bssid_hint; 3179 3180 params.ssid = ssid->ssid; 3181 params.ssid_len = ssid->ssid_len; 3182 params.pbss = (ssid->pbss != 2) ? ssid->pbss : 0; 3183 } 3184 3185 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set && 3186 wpa_s->conf->ap_scan == 2) { 3187 params.bssid = ssid->bssid; 3188 params.fixed_bssid = 1; 3189 } 3190 3191 /* Initial frequency for IBSS/mesh */ 3192 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) && 3193 ssid->frequency > 0 && params.freq.freq == 0) 3194 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq); 3195 3196 if (ssid->mode == WPAS_MODE_IBSS) { 3197 params.fixed_freq = ssid->fixed_freq; 3198 if (ssid->beacon_int) 3199 params.beacon_int = ssid->beacon_int; 3200 else 3201 params.beacon_int = wpa_s->conf->beacon_int; 3202 } 3203 3204 params.pairwise_suite = cipher_pairwise; 3205 params.group_suite = cipher_group; 3206 params.mgmt_group_suite = cipher_group_mgmt; 3207 params.key_mgmt_suite = wpa_s->key_mgmt; 3208 params.wpa_proto = wpa_s->wpa_proto; 3209 wpa_s->auth_alg = params.auth_alg; 3210 params.mode = ssid->mode; 3211 params.bg_scan_period = ssid->bg_scan_period; 3212 for (i = 0; i < NUM_WEP_KEYS; i++) { 3213 if (ssid->wep_key_len[i]) 3214 params.wep_key[i] = ssid->wep_key[i]; 3215 params.wep_key_len[i] = ssid->wep_key_len[i]; 3216 } 3217 params.wep_tx_keyidx = ssid->wep_tx_keyidx; 3218 3219 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) && 3220 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK || 3221 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { 3222 params.passphrase = ssid->passphrase; 3223 if (ssid->psk_set) 3224 params.psk = ssid->psk; 3225 } 3226 3227 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) && 3228 (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 3229 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 3230 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B || 3231 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)) 3232 params.req_handshake_offload = 1; 3233 3234 if (wpa_s->conf->key_mgmt_offload) { 3235 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 3236 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 3237 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B || 3238 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) 3239 params.req_key_mgmt_offload = 3240 ssid->proactive_key_caching < 0 ? 3241 wpa_s->conf->okc : ssid->proactive_key_caching; 3242 else 3243 params.req_key_mgmt_offload = 1; 3244 3245 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK || 3246 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || 3247 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) && 3248 ssid->psk_set) 3249 params.psk = ssid->psk; 3250 } 3251 3252 params.drop_unencrypted = use_crypt; 3253 3254#ifdef CONFIG_IEEE80211W 3255 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid); 3256 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) { 3257 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 3258 struct wpa_ie_data ie; 3259 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && 3260 ie.capabilities & 3261 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { 3262 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " 3263 "MFP: require MFP"); 3264 params.mgmt_frame_protection = 3265 MGMT_FRAME_PROTECTION_REQUIRED; 3266#ifdef CONFIG_OWE 3267 } else if (!rsn && (ssid->key_mgmt & WPA_KEY_MGMT_OWE) && 3268 !ssid->owe_only) { 3269 params.mgmt_frame_protection = NO_MGMT_FRAME_PROTECTION; 3270#endif /* CONFIG_OWE */ 3271 } 3272 } 3273#endif /* CONFIG_IEEE80211W */ 3274 3275 params.p2p = ssid->p2p_group; 3276 3277 if (wpa_s->p2pdev->set_sta_uapsd) 3278 params.uapsd = wpa_s->p2pdev->sta_uapsd; 3279 else 3280 params.uapsd = -1; 3281 3282#ifdef CONFIG_HT_OVERRIDES 3283 os_memset(&htcaps, 0, sizeof(htcaps)); 3284 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask)); 3285 params.htcaps = (u8 *) &htcaps; 3286 params.htcaps_mask = (u8 *) &htcaps_mask; 3287 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); 3288#endif /* CONFIG_HT_OVERRIDES */ 3289#ifdef CONFIG_VHT_OVERRIDES 3290 os_memset(&vhtcaps, 0, sizeof(vhtcaps)); 3291 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask)); 3292 params.vhtcaps = &vhtcaps; 3293 params.vhtcaps_mask = &vhtcaps_mask; 3294 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms); 3295#endif /* CONFIG_VHT_OVERRIDES */ 3296 3297#ifdef CONFIG_P2P 3298 /* 3299 * If multi-channel concurrency is not supported, check for any 3300 * frequency conflict. In case of any frequency conflict, remove the 3301 * least prioritized connection. 3302 */ 3303 if (wpa_s->num_multichan_concurrent < 2) { 3304 int freq, num; 3305 num = get_shared_radio_freqs(wpa_s, &freq, 1); 3306 if (num > 0 && freq > 0 && freq != params.freq.freq) { 3307 wpa_printf(MSG_DEBUG, 3308 "Assoc conflicting freq found (%d != %d)", 3309 freq, params.freq.freq); 3310 if (wpas_p2p_handle_frequency_conflicts( 3311 wpa_s, params.freq.freq, ssid) < 0) { 3312 wpas_connect_work_done(wpa_s); 3313 os_free(wpa_ie); 3314 return; 3315 } 3316 } 3317 } 3318#endif /* CONFIG_P2P */ 3319 3320 if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) && 3321 wpa_s->current_ssid) 3322 params.prev_bssid = prev_bssid; 3323 3324 ret = wpa_drv_associate(wpa_s, ¶ms); 3325 os_free(wpa_ie); 3326 if (ret < 0) { 3327 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " 3328 "failed"); 3329 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { 3330 /* 3331 * The driver is known to mean what is saying, so we 3332 * can stop right here; the association will not 3333 * succeed. 3334 */ 3335 wpas_connection_failed(wpa_s, wpa_s->pending_bssid); 3336 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 3337 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 3338 return; 3339 } 3340 /* try to continue anyway; new association will be tried again 3341 * after timeout */ 3342 assoc_failed = 1; 3343 } 3344 3345 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 3346 /* Set the key after the association just in case association 3347 * cleared the previously configured key. */ 3348 wpa_supplicant_set_wpa_none_key(wpa_s, ssid); 3349 /* No need to timeout authentication since there is no key 3350 * management. */ 3351 wpa_supplicant_cancel_auth_timeout(wpa_s); 3352 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 3353#ifdef CONFIG_IBSS_RSN 3354 } else if (ssid->mode == WPAS_MODE_IBSS && 3355 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 3356 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { 3357 /* 3358 * RSN IBSS authentication is per-STA and we can disable the 3359 * per-BSSID authentication. 3360 */ 3361 wpa_supplicant_cancel_auth_timeout(wpa_s); 3362#endif /* CONFIG_IBSS_RSN */ 3363 } else { 3364 /* Timeout for IEEE 802.11 authentication and association */ 3365 int timeout = 60; 3366 3367 if (assoc_failed) { 3368 /* give IBSS a bit more time */ 3369 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; 3370 } else if (wpa_s->conf->ap_scan == 1) { 3371 /* give IBSS a bit more time */ 3372 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; 3373 } 3374 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); 3375 } 3376 3377 if (wep_keys_set && 3378 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) { 3379 /* Set static WEP keys again */ 3380 wpa_set_wep_keys(wpa_s, ssid); 3381 } 3382 3383 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { 3384 /* 3385 * Do not allow EAP session resumption between different 3386 * network configurations. 3387 */ 3388 eapol_sm_invalidate_cached_session(wpa_s->eapol); 3389 } 3390 old_ssid = wpa_s->current_ssid; 3391 wpa_s->current_ssid = ssid; 3392 3393 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) { 3394 wpa_s->current_bss = bss; 3395#ifdef CONFIG_HS20 3396 hs20_configure_frame_filters(wpa_s); 3397#endif /* CONFIG_HS20 */ 3398 } 3399 3400 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 3401 wpa_supplicant_initiate_eapol(wpa_s); 3402 if (old_ssid != wpa_s->current_ssid) 3403 wpas_notify_network_changed(wpa_s); 3404} 3405 3406 3407static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, 3408 const u8 *addr) 3409{ 3410 struct wpa_ssid *old_ssid; 3411 3412 wpas_connect_work_done(wpa_s); 3413 wpa_clear_keys(wpa_s, addr); 3414 old_ssid = wpa_s->current_ssid; 3415 wpa_supplicant_mark_disassoc(wpa_s); 3416 wpa_sm_set_config(wpa_s->wpa, NULL); 3417 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 3418 if (old_ssid != wpa_s->current_ssid) 3419 wpas_notify_network_changed(wpa_s); 3420 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); 3421} 3422 3423 3424/** 3425 * wpa_supplicant_deauthenticate - Deauthenticate the current connection 3426 * @wpa_s: Pointer to wpa_supplicant data 3427 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame 3428 * 3429 * This function is used to request %wpa_supplicant to deauthenticate from the 3430 * current AP. 3431 */ 3432void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, 3433 u16 reason_code) 3434{ 3435 u8 *addr = NULL; 3436 union wpa_event_data event; 3437 int zero_addr = 0; 3438 3439 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR 3440 " pending_bssid=" MACSTR " reason=%d (%s) state=%s", 3441 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 3442 reason_code, reason2str(reason_code), 3443 wpa_supplicant_state_txt(wpa_s->wpa_state)); 3444 3445 if (!is_zero_ether_addr(wpa_s->pending_bssid) && 3446 (wpa_s->wpa_state == WPA_AUTHENTICATING || 3447 wpa_s->wpa_state == WPA_ASSOCIATING)) 3448 addr = wpa_s->pending_bssid; 3449 else if (!is_zero_ether_addr(wpa_s->bssid)) 3450 addr = wpa_s->bssid; 3451 else if (wpa_s->wpa_state == WPA_ASSOCIATING) { 3452 /* 3453 * When using driver-based BSS selection, we may not know the 3454 * BSSID with which we are currently trying to associate. We 3455 * need to notify the driver of this disconnection even in such 3456 * a case, so use the all zeros address here. 3457 */ 3458 addr = wpa_s->bssid; 3459 zero_addr = 1; 3460 } 3461 3462 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0) 3463 wpa_s->enabled_4addr_mode = 0; 3464 3465#ifdef CONFIG_TDLS 3466 wpa_tdls_teardown_peers(wpa_s->wpa); 3467#endif /* CONFIG_TDLS */ 3468 3469#ifdef CONFIG_MESH 3470 if (wpa_s->ifmsh) { 3471 struct mesh_conf *mconf; 3472 3473 mconf = wpa_s->ifmsh->mconf; 3474 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s", 3475 wpa_s->ifname); 3476 wpas_notify_mesh_group_removed(wpa_s, mconf->meshid, 3477 mconf->meshid_len, reason_code); 3478 wpa_supplicant_leave_mesh(wpa_s); 3479 } 3480#endif /* CONFIG_MESH */ 3481 3482 if (addr) { 3483 wpa_drv_deauthenticate(wpa_s, addr, reason_code); 3484 os_memset(&event, 0, sizeof(event)); 3485 event.deauth_info.reason_code = reason_code; 3486 event.deauth_info.locally_generated = 1; 3487 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event); 3488 if (zero_addr) 3489 addr = NULL; 3490 } 3491 3492 wpa_supplicant_clear_connection(wpa_s, addr); 3493} 3494 3495static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s, 3496 struct wpa_ssid *ssid) 3497{ 3498 if (!ssid || !ssid->disabled || ssid->disabled == 2) 3499 return; 3500 3501 ssid->disabled = 0; 3502 ssid->owe_transition_bss_select_count = 0; 3503 wpas_clear_temp_disabled(wpa_s, ssid, 1); 3504 wpas_notify_network_enabled_changed(wpa_s, ssid); 3505 3506 /* 3507 * Try to reassociate since there is no current configuration and a new 3508 * network was made available. 3509 */ 3510 if (!wpa_s->current_ssid && !wpa_s->disconnected) 3511 wpa_s->reassociate = 1; 3512} 3513 3514 3515/** 3516 * wpa_supplicant_add_network - Add a new network 3517 * @wpa_s: wpa_supplicant structure for a network interface 3518 * Returns: The new network configuration or %NULL if operation failed 3519 * 3520 * This function performs the following operations: 3521 * 1. Adds a new network. 3522 * 2. Send network addition notification. 3523 * 3. Marks the network disabled. 3524 * 4. Set network default parameters. 3525 */ 3526struct wpa_ssid * wpa_supplicant_add_network(struct wpa_supplicant *wpa_s) 3527{ 3528 struct wpa_ssid *ssid; 3529 3530 ssid = wpa_config_add_network(wpa_s->conf); 3531 if (!ssid) 3532 return NULL; 3533 wpas_notify_network_added(wpa_s, ssid); 3534 ssid->disabled = 1; 3535 wpa_config_set_network_defaults(ssid); 3536 3537 return ssid; 3538} 3539 3540 3541/** 3542 * wpa_supplicant_remove_network - Remove a configured network based on id 3543 * @wpa_s: wpa_supplicant structure for a network interface 3544 * @id: Unique network id to search for 3545 * Returns: 0 on success, or -1 if the network was not found, -2 if the network 3546 * could not be removed 3547 * 3548 * This function performs the following operations: 3549 * 1. Removes the network. 3550 * 2. Send network removal notification. 3551 * 3. Update internal state machines. 3552 * 4. Stop any running sched scans. 3553 */ 3554int wpa_supplicant_remove_network(struct wpa_supplicant *wpa_s, int id) 3555{ 3556 struct wpa_ssid *ssid; 3557 int was_disabled; 3558 3559 ssid = wpa_config_get_network(wpa_s->conf, id); 3560 if (!ssid) 3561 return -1; 3562 wpas_notify_network_removed(wpa_s, ssid); 3563 3564 if (wpa_s->last_ssid == ssid) 3565 wpa_s->last_ssid = NULL; 3566 3567 if (ssid == wpa_s->current_ssid || !wpa_s->current_ssid) { 3568#ifdef CONFIG_SME 3569 wpa_s->sme.prev_bssid_set = 0; 3570#endif /* CONFIG_SME */ 3571 /* 3572 * Invalidate the EAP session cache if the current or 3573 * previously used network is removed. 3574 */ 3575 eapol_sm_invalidate_cached_session(wpa_s->eapol); 3576 } 3577 3578 if (ssid == wpa_s->current_ssid) { 3579 wpa_sm_set_config(wpa_s->wpa, NULL); 3580 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 3581 3582 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 3583 wpa_s->own_disconnect_req = 1; 3584 wpa_supplicant_deauthenticate(wpa_s, 3585 WLAN_REASON_DEAUTH_LEAVING); 3586 } 3587 3588 was_disabled = ssid->disabled; 3589 3590 if (wpa_config_remove_network(wpa_s->conf, id) < 0) 3591 return -2; 3592 3593 if (!was_disabled && wpa_s->sched_scanning) { 3594 wpa_printf(MSG_DEBUG, 3595 "Stop ongoing sched_scan to remove network from filters"); 3596 wpa_supplicant_cancel_sched_scan(wpa_s); 3597 wpa_supplicant_req_scan(wpa_s, 0, 0); 3598 } 3599 3600 return 0; 3601} 3602 3603 3604/** 3605 * wpa_supplicant_enable_network - Mark a configured network as enabled 3606 * @wpa_s: wpa_supplicant structure for a network interface 3607 * @ssid: wpa_ssid structure for a configured network or %NULL 3608 * 3609 * Enables the specified network or all networks if no network specified. 3610 */ 3611void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, 3612 struct wpa_ssid *ssid) 3613{ 3614 if (ssid == NULL) { 3615 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) 3616 wpa_supplicant_enable_one_network(wpa_s, ssid); 3617 } else 3618 wpa_supplicant_enable_one_network(wpa_s, ssid); 3619 3620 if (wpa_s->reassociate && !wpa_s->disconnected && 3621 (!wpa_s->current_ssid || 3622 wpa_s->wpa_state == WPA_DISCONNECTED || 3623 wpa_s->wpa_state == WPA_SCANNING)) { 3624 if (wpa_s->sched_scanning) { 3625 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add " 3626 "new network to scan filters"); 3627 wpa_supplicant_cancel_sched_scan(wpa_s); 3628 } 3629 3630 if (wpa_supplicant_fast_associate(wpa_s) != 1) { 3631 wpa_s->scan_req = NORMAL_SCAN_REQ; 3632 wpa_supplicant_req_scan(wpa_s, 0, 0); 3633 } 3634 } 3635} 3636 3637 3638/** 3639 * wpa_supplicant_disable_network - Mark a configured network as disabled 3640 * @wpa_s: wpa_supplicant structure for a network interface 3641 * @ssid: wpa_ssid structure for a configured network or %NULL 3642 * 3643 * Disables the specified network or all networks if no network specified. 3644 */ 3645void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, 3646 struct wpa_ssid *ssid) 3647{ 3648 struct wpa_ssid *other_ssid; 3649 int was_disabled; 3650 3651 if (ssid == NULL) { 3652 if (wpa_s->sched_scanning) 3653 wpa_supplicant_cancel_sched_scan(wpa_s); 3654 3655 for (other_ssid = wpa_s->conf->ssid; other_ssid; 3656 other_ssid = other_ssid->next) { 3657 was_disabled = other_ssid->disabled; 3658 if (was_disabled == 2) 3659 continue; /* do not change persistent P2P group 3660 * data */ 3661 3662 other_ssid->disabled = 1; 3663 3664 if (was_disabled != other_ssid->disabled) 3665 wpas_notify_network_enabled_changed( 3666 wpa_s, other_ssid); 3667 } 3668 if (wpa_s->current_ssid) { 3669 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 3670 wpa_s->own_disconnect_req = 1; 3671 wpa_supplicant_deauthenticate( 3672 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 3673 } 3674 } else if (ssid->disabled != 2) { 3675 if (ssid == wpa_s->current_ssid) { 3676 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 3677 wpa_s->own_disconnect_req = 1; 3678 wpa_supplicant_deauthenticate( 3679 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 3680 } 3681 3682 was_disabled = ssid->disabled; 3683 3684 ssid->disabled = 1; 3685 3686 if (was_disabled != ssid->disabled) { 3687 wpas_notify_network_enabled_changed(wpa_s, ssid); 3688 if (wpa_s->sched_scanning) { 3689 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan " 3690 "to remove network from filters"); 3691 wpa_supplicant_cancel_sched_scan(wpa_s); 3692 wpa_supplicant_req_scan(wpa_s, 0, 0); 3693 } 3694 } 3695 } 3696} 3697 3698 3699/** 3700 * wpa_supplicant_select_network - Attempt association with a network 3701 * @wpa_s: wpa_supplicant structure for a network interface 3702 * @ssid: wpa_ssid structure for a configured network or %NULL for any network 3703 */ 3704void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, 3705 struct wpa_ssid *ssid) 3706{ 3707 3708 struct wpa_ssid *other_ssid; 3709 int disconnected = 0; 3710 3711 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) { 3712 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 3713 wpa_s->own_disconnect_req = 1; 3714 wpa_supplicant_deauthenticate( 3715 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 3716 disconnected = 1; 3717 } 3718 3719 if (ssid) 3720 wpas_clear_temp_disabled(wpa_s, ssid, 1); 3721 3722 /* 3723 * Mark all other networks disabled or mark all networks enabled if no 3724 * network specified. 3725 */ 3726 for (other_ssid = wpa_s->conf->ssid; other_ssid; 3727 other_ssid = other_ssid->next) { 3728 int was_disabled = other_ssid->disabled; 3729 if (was_disabled == 2) 3730 continue; /* do not change persistent P2P group data */ 3731 3732 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; 3733 if (was_disabled && !other_ssid->disabled) 3734 wpas_clear_temp_disabled(wpa_s, other_ssid, 0); 3735 3736 if (was_disabled != other_ssid->disabled) 3737 wpas_notify_network_enabled_changed(wpa_s, other_ssid); 3738 } 3739 3740 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid && 3741 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 3742 /* We are already associated with the selected network */ 3743 wpa_printf(MSG_DEBUG, "Already associated with the " 3744 "selected network - do nothing"); 3745 return; 3746 } 3747 3748 if (ssid) { 3749 wpa_s->current_ssid = ssid; 3750 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 3751 wpa_s->connect_without_scan = 3752 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL; 3753 3754 /* 3755 * Don't optimize next scan freqs since a new ESS has been 3756 * selected. 3757 */ 3758 os_free(wpa_s->next_scan_freqs); 3759 wpa_s->next_scan_freqs = NULL; 3760 } else { 3761 wpa_s->connect_without_scan = NULL; 3762 } 3763 3764 wpa_s->disconnected = 0; 3765 wpa_s->reassociate = 1; 3766 wpa_s->last_owe_group = 0; 3767 if (ssid) 3768 ssid->owe_transition_bss_select_count = 0; 3769 3770 if (wpa_s->connect_without_scan || 3771 wpa_supplicant_fast_associate(wpa_s) != 1) { 3772 wpa_s->scan_req = NORMAL_SCAN_REQ; 3773 wpas_scan_reset_sched_scan(wpa_s); 3774 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0); 3775 } 3776 3777 if (ssid) 3778 wpas_notify_network_selected(wpa_s, ssid); 3779} 3780 3781 3782/** 3783 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path 3784 * @wpa_s: wpa_supplicant structure for a network interface 3785 * @pkcs11_engine_path: PKCS #11 engine path or NULL 3786 * @pkcs11_module_path: PKCS #11 module path or NULL 3787 * Returns: 0 on success; -1 on failure 3788 * 3789 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid 3790 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and 3791 * module path fails the paths will be reset to the default value (NULL). 3792 */ 3793int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s, 3794 const char *pkcs11_engine_path, 3795 const char *pkcs11_module_path) 3796{ 3797 char *pkcs11_engine_path_copy = NULL; 3798 char *pkcs11_module_path_copy = NULL; 3799 3800 if (pkcs11_engine_path != NULL) { 3801 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path); 3802 if (pkcs11_engine_path_copy == NULL) 3803 return -1; 3804 } 3805 if (pkcs11_module_path != NULL) { 3806 pkcs11_module_path_copy = os_strdup(pkcs11_module_path); 3807 if (pkcs11_module_path_copy == NULL) { 3808 os_free(pkcs11_engine_path_copy); 3809 return -1; 3810 } 3811 } 3812 3813 os_free(wpa_s->conf->pkcs11_engine_path); 3814 os_free(wpa_s->conf->pkcs11_module_path); 3815 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy; 3816 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy; 3817 3818 wpa_sm_set_eapol(wpa_s->wpa, NULL); 3819 eapol_sm_deinit(wpa_s->eapol); 3820 wpa_s->eapol = NULL; 3821 if (wpa_supplicant_init_eapol(wpa_s)) { 3822 /* Error -> Reset paths to the default value (NULL) once. */ 3823 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL) 3824 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL, 3825 NULL); 3826 3827 return -1; 3828 } 3829 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); 3830 3831 return 0; 3832} 3833 3834 3835/** 3836 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface 3837 * @wpa_s: wpa_supplicant structure for a network interface 3838 * @ap_scan: AP scan mode 3839 * Returns: 0 if succeed or -1 if ap_scan has an invalid value 3840 * 3841 */ 3842int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) 3843{ 3844 3845 int old_ap_scan; 3846 3847 if (ap_scan < 0 || ap_scan > 2) 3848 return -1; 3849 3850 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) { 3851 wpa_printf(MSG_INFO, 3852 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures"); 3853 } 3854 3855#ifdef ANDROID 3856 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && 3857 wpa_s->wpa_state >= WPA_ASSOCIATING && 3858 wpa_s->wpa_state < WPA_COMPLETED) { 3859 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " 3860 "associating", wpa_s->conf->ap_scan, ap_scan); 3861 return 0; 3862 } 3863#endif /* ANDROID */ 3864 3865 old_ap_scan = wpa_s->conf->ap_scan; 3866 wpa_s->conf->ap_scan = ap_scan; 3867 3868 if (old_ap_scan != wpa_s->conf->ap_scan) 3869 wpas_notify_ap_scan_changed(wpa_s); 3870 3871 return 0; 3872} 3873 3874 3875/** 3876 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age 3877 * @wpa_s: wpa_supplicant structure for a network interface 3878 * @expire_age: Expiration age in seconds 3879 * Returns: 0 if succeed or -1 if expire_age has an invalid value 3880 * 3881 */ 3882int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, 3883 unsigned int bss_expire_age) 3884{ 3885 if (bss_expire_age < 10) { 3886 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", 3887 bss_expire_age); 3888 return -1; 3889 } 3890 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", 3891 bss_expire_age); 3892 wpa_s->conf->bss_expiration_age = bss_expire_age; 3893 3894 return 0; 3895} 3896 3897 3898/** 3899 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count 3900 * @wpa_s: wpa_supplicant structure for a network interface 3901 * @expire_count: number of scans after which an unseen BSS is reclaimed 3902 * Returns: 0 if succeed or -1 if expire_count has an invalid value 3903 * 3904 */ 3905int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, 3906 unsigned int bss_expire_count) 3907{ 3908 if (bss_expire_count < 1) { 3909 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", 3910 bss_expire_count); 3911 return -1; 3912 } 3913 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", 3914 bss_expire_count); 3915 wpa_s->conf->bss_expiration_scan_count = bss_expire_count; 3916 3917 return 0; 3918} 3919 3920 3921/** 3922 * wpa_supplicant_set_scan_interval - Set scan interval 3923 * @wpa_s: wpa_supplicant structure for a network interface 3924 * @scan_interval: scan interval in seconds 3925 * Returns: 0 if succeed or -1 if scan_interval has an invalid value 3926 * 3927 */ 3928int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s, 3929 int scan_interval) 3930{ 3931 if (scan_interval < 0) { 3932 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d", 3933 scan_interval); 3934 return -1; 3935 } 3936 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec", 3937 scan_interval); 3938 wpa_supplicant_update_scan_int(wpa_s, scan_interval); 3939 3940 return 0; 3941} 3942 3943 3944/** 3945 * wpa_supplicant_set_debug_params - Set global debug params 3946 * @global: wpa_global structure 3947 * @debug_level: debug level 3948 * @debug_timestamp: determines if show timestamp in debug data 3949 * @debug_show_keys: determines if show keys in debug data 3950 * Returns: 0 if succeed or -1 if debug_level has wrong value 3951 */ 3952int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, 3953 int debug_timestamp, int debug_show_keys) 3954{ 3955 3956 int old_level, old_timestamp, old_show_keys; 3957 3958 /* check for allowed debuglevels */ 3959 if (debug_level != MSG_EXCESSIVE && 3960 debug_level != MSG_MSGDUMP && 3961 debug_level != MSG_DEBUG && 3962 debug_level != MSG_INFO && 3963 debug_level != MSG_WARNING && 3964 debug_level != MSG_ERROR) 3965 return -1; 3966 3967 old_level = wpa_debug_level; 3968 old_timestamp = wpa_debug_timestamp; 3969 old_show_keys = wpa_debug_show_keys; 3970 3971 wpa_debug_level = debug_level; 3972 wpa_debug_timestamp = debug_timestamp ? 1 : 0; 3973 wpa_debug_show_keys = debug_show_keys ? 1 : 0; 3974 3975 if (wpa_debug_level != old_level) 3976 wpas_notify_debug_level_changed(global); 3977 if (wpa_debug_timestamp != old_timestamp) 3978 wpas_notify_debug_timestamp_changed(global); 3979 if (wpa_debug_show_keys != old_show_keys) 3980 wpas_notify_debug_show_keys_changed(global); 3981 3982 return 0; 3983} 3984 3985 3986#ifdef CONFIG_OWE 3987static int owe_trans_ssid_match(struct wpa_supplicant *wpa_s, const u8 *bssid, 3988 const u8 *entry_ssid, size_t entry_ssid_len) 3989{ 3990 const u8 *owe, *pos, *end; 3991 u8 ssid_len; 3992 struct wpa_bss *bss; 3993 3994 /* Check network profile SSID aganst the SSID in the 3995 * OWE Transition Mode element. */ 3996 3997 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 3998 if (!bss) 3999 return 0; 4000 4001 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE); 4002 if (!owe) 4003 return 0; 4004 4005 pos = owe + 6; 4006 end = owe + 2 + owe[1]; 4007 4008 if (end - pos < ETH_ALEN + 1) 4009 return 0; 4010 pos += ETH_ALEN; 4011 ssid_len = *pos++; 4012 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN) 4013 return 0; 4014 4015 return entry_ssid_len == ssid_len && 4016 os_memcmp(pos, entry_ssid, ssid_len) == 0; 4017} 4018#endif /* CONFIG_OWE */ 4019 4020 4021/** 4022 * wpa_supplicant_get_ssid - Get a pointer to the current network structure 4023 * @wpa_s: Pointer to wpa_supplicant data 4024 * Returns: A pointer to the current network structure or %NULL on failure 4025 */ 4026struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) 4027{ 4028 struct wpa_ssid *entry; 4029 u8 ssid[SSID_MAX_LEN]; 4030 int res; 4031 size_t ssid_len; 4032 u8 bssid[ETH_ALEN]; 4033 int wired; 4034 4035 res = wpa_drv_get_ssid(wpa_s, ssid); 4036 if (res < 0) { 4037 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " 4038 "driver"); 4039 return NULL; 4040 } 4041 ssid_len = res; 4042 4043 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 4044 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " 4045 "driver"); 4046 return NULL; 4047 } 4048 4049 wired = wpa_s->conf->ap_scan == 0 && 4050 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); 4051 4052 entry = wpa_s->conf->ssid; 4053 while (entry) { 4054 if (!wpas_network_disabled(wpa_s, entry) && 4055 ((ssid_len == entry->ssid_len && 4056 (!entry->ssid || 4057 os_memcmp(ssid, entry->ssid, ssid_len) == 0)) || 4058 wired) && 4059 (!entry->bssid_set || 4060 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) 4061 return entry; 4062#ifdef CONFIG_WPS 4063 if (!wpas_network_disabled(wpa_s, entry) && 4064 (entry->key_mgmt & WPA_KEY_MGMT_WPS) && 4065 (entry->ssid == NULL || entry->ssid_len == 0) && 4066 (!entry->bssid_set || 4067 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) 4068 return entry; 4069#endif /* CONFIG_WPS */ 4070 4071#ifdef CONFIG_OWE 4072 if (!wpas_network_disabled(wpa_s, entry) && 4073 owe_trans_ssid_match(wpa_s, bssid, entry->ssid, 4074 entry->ssid_len) && 4075 (!entry->bssid_set || 4076 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) 4077 return entry; 4078#endif /* CONFIG_OWE */ 4079 4080 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set && 4081 entry->ssid_len == 0 && 4082 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) 4083 return entry; 4084 4085 entry = entry->next; 4086 } 4087 4088 return NULL; 4089} 4090 4091 4092static int select_driver(struct wpa_supplicant *wpa_s, int i) 4093{ 4094 struct wpa_global *global = wpa_s->global; 4095 4096 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { 4097 global->drv_priv[i] = wpa_drivers[i]->global_init(global); 4098 if (global->drv_priv[i] == NULL) { 4099 wpa_printf(MSG_ERROR, "Failed to initialize driver " 4100 "'%s'", wpa_drivers[i]->name); 4101 return -1; 4102 } 4103 } 4104 4105 wpa_s->driver = wpa_drivers[i]; 4106 wpa_s->global_drv_priv = global->drv_priv[i]; 4107 4108 return 0; 4109} 4110 4111 4112static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, 4113 const char *name) 4114{ 4115 int i; 4116 size_t len; 4117 const char *pos, *driver = name; 4118 4119 if (wpa_s == NULL) 4120 return -1; 4121 4122 if (wpa_drivers[0] == NULL) { 4123 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " 4124 "wpa_supplicant"); 4125 return -1; 4126 } 4127 4128 if (name == NULL) { 4129 /* default to first driver in the list */ 4130 return select_driver(wpa_s, 0); 4131 } 4132 4133 do { 4134 pos = os_strchr(driver, ','); 4135 if (pos) 4136 len = pos - driver; 4137 else 4138 len = os_strlen(driver); 4139 4140 for (i = 0; wpa_drivers[i]; i++) { 4141 if (os_strlen(wpa_drivers[i]->name) == len && 4142 os_strncmp(driver, wpa_drivers[i]->name, len) == 4143 0) { 4144 /* First driver that succeeds wins */ 4145 if (select_driver(wpa_s, i) == 0) 4146 return 0; 4147 } 4148 } 4149 4150 driver = pos + 1; 4151 } while (pos); 4152 4153 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); 4154 return -1; 4155} 4156 4157 4158/** 4159 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant 4160 * @ctx: Context pointer (wpa_s); this is the ctx variable registered 4161 * with struct wpa_driver_ops::init() 4162 * @src_addr: Source address of the EAPOL frame 4163 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) 4164 * @len: Length of the EAPOL data 4165 * 4166 * This function is called for each received EAPOL frame. Most driver 4167 * interfaces rely on more generic OS mechanism for receiving frames through 4168 * l2_packet, but if such a mechanism is not available, the driver wrapper may 4169 * take care of received EAPOL frames and deliver them to the core supplicant 4170 * code by calling this function. 4171 */ 4172void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, 4173 const u8 *buf, size_t len) 4174{ 4175 struct wpa_supplicant *wpa_s = ctx; 4176 4177 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); 4178 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); 4179 4180#ifdef CONFIG_TESTING_OPTIONS 4181 if (wpa_s->ignore_auth_resp) { 4182 wpa_printf(MSG_INFO, "RX EAPOL - ignore_auth_resp active!"); 4183 return; 4184 } 4185#endif /* CONFIG_TESTING_OPTIONS */ 4186 4187 if (wpa_s->wpa_state < WPA_ASSOCIATED || 4188 (wpa_s->last_eapol_matches_bssid && 4189#ifdef CONFIG_AP 4190 !wpa_s->ap_iface && 4191#endif /* CONFIG_AP */ 4192 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) { 4193 /* 4194 * There is possible race condition between receiving the 4195 * association event and the EAPOL frame since they are coming 4196 * through different paths from the driver. In order to avoid 4197 * issues in trying to process the EAPOL frame before receiving 4198 * association information, lets queue it for processing until 4199 * the association event is received. This may also be needed in 4200 * driver-based roaming case, so also use src_addr != BSSID as a 4201 * trigger if we have previously confirmed that the 4202 * Authenticator uses BSSID as the src_addr (which is not the 4203 * case with wired IEEE 802.1X). 4204 */ 4205 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " 4206 "of received EAPOL frame (state=%s bssid=" MACSTR ")", 4207 wpa_supplicant_state_txt(wpa_s->wpa_state), 4208 MAC2STR(wpa_s->bssid)); 4209 wpabuf_free(wpa_s->pending_eapol_rx); 4210 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); 4211 if (wpa_s->pending_eapol_rx) { 4212 os_get_reltime(&wpa_s->pending_eapol_rx_time); 4213 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, 4214 ETH_ALEN); 4215 } 4216 return; 4217 } 4218 4219 wpa_s->last_eapol_matches_bssid = 4220 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0; 4221 4222#ifdef CONFIG_AP 4223 if (wpa_s->ap_iface) { 4224 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); 4225 return; 4226 } 4227#endif /* CONFIG_AP */ 4228 4229 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { 4230 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " 4231 "no key management is configured"); 4232 return; 4233 } 4234 4235 if (wpa_s->eapol_received == 0 && 4236 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) || 4237 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || 4238 wpa_s->wpa_state != WPA_COMPLETED) && 4239 (wpa_s->current_ssid == NULL || 4240 wpa_s->current_ssid->mode != WPAS_MODE_IBSS)) { 4241 /* Timeout for completing IEEE 802.1X and WPA authentication */ 4242 int timeout = 10; 4243 4244 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 4245 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || 4246 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 4247 /* Use longer timeout for IEEE 802.1X/EAP */ 4248 timeout = 70; 4249 } 4250 4251#ifdef CONFIG_WPS 4252 if (wpa_s->current_ssid && wpa_s->current_bss && 4253 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 4254 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { 4255 /* 4256 * Use shorter timeout if going through WPS AP iteration 4257 * for PIN config method with an AP that does not 4258 * advertise Selected Registrar. 4259 */ 4260 struct wpabuf *wps_ie; 4261 4262 wps_ie = wpa_bss_get_vendor_ie_multi( 4263 wpa_s->current_bss, WPS_IE_VENDOR_TYPE); 4264 if (wps_ie && 4265 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) 4266 timeout = 10; 4267 wpabuf_free(wps_ie); 4268 } 4269#endif /* CONFIG_WPS */ 4270 4271 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); 4272 } 4273 wpa_s->eapol_received++; 4274 4275 if (wpa_s->countermeasures) { 4276 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " 4277 "EAPOL packet"); 4278 return; 4279 } 4280 4281#ifdef CONFIG_IBSS_RSN 4282 if (wpa_s->current_ssid && 4283 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { 4284 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); 4285 return; 4286 } 4287#endif /* CONFIG_IBSS_RSN */ 4288 4289 /* Source address of the incoming EAPOL frame could be compared to the 4290 * current BSSID. However, it is possible that a centralized 4291 * Authenticator could be using another MAC address than the BSSID of 4292 * an AP, so just allow any address to be used for now. The replies are 4293 * still sent to the current BSSID (if available), though. */ 4294 4295 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); 4296 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && 4297 wpa_s->key_mgmt != WPA_KEY_MGMT_OWE && 4298 wpa_s->key_mgmt != WPA_KEY_MGMT_DPP && 4299 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) 4300 return; 4301 wpa_drv_poll(wpa_s); 4302 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK)) 4303 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); 4304 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 4305 /* 4306 * Set portValid = TRUE here since we are going to skip 4-way 4307 * handshake processing which would normally set portValid. We 4308 * need this to allow the EAPOL state machines to be completed 4309 * without going through EAPOL-Key handshake. 4310 */ 4311 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 4312 } 4313} 4314 4315 4316int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) 4317{ 4318 if ((!wpa_s->p2p_mgmt || 4319 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) && 4320 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { 4321 l2_packet_deinit(wpa_s->l2); 4322 wpa_s->l2 = l2_packet_init(wpa_s->ifname, 4323 wpa_drv_get_mac_addr(wpa_s), 4324 ETH_P_EAPOL, 4325 wpa_supplicant_rx_eapol, wpa_s, 0); 4326 if (wpa_s->l2 == NULL) 4327 return -1; 4328 4329 if (l2_packet_set_packet_filter(wpa_s->l2, 4330 L2_PACKET_FILTER_PKTTYPE)) 4331 wpa_dbg(wpa_s, MSG_DEBUG, 4332 "Failed to attach pkt_type filter"); 4333 } else { 4334 const u8 *addr = wpa_drv_get_mac_addr(wpa_s); 4335 if (addr) 4336 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); 4337 } 4338 4339 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { 4340 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); 4341 return -1; 4342 } 4343 4344 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); 4345 4346 return 0; 4347} 4348 4349 4350static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr, 4351 const u8 *buf, size_t len) 4352{ 4353 struct wpa_supplicant *wpa_s = ctx; 4354 const struct l2_ethhdr *eth; 4355 4356 if (len < sizeof(*eth)) 4357 return; 4358 eth = (const struct l2_ethhdr *) buf; 4359 4360 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 && 4361 !(eth->h_dest[0] & 0x01)) { 4362 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR 4363 " (bridge - not for this interface - ignore)", 4364 MAC2STR(src_addr), MAC2STR(eth->h_dest)); 4365 return; 4366 } 4367 4368 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR 4369 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest)); 4370 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth), 4371 len - sizeof(*eth)); 4372} 4373 4374 4375/** 4376 * wpa_supplicant_driver_init - Initialize driver interface parameters 4377 * @wpa_s: Pointer to wpa_supplicant data 4378 * Returns: 0 on success, -1 on failure 4379 * 4380 * This function is called to initialize driver interface parameters. 4381 * wpa_drv_init() must have been called before this function to initialize the 4382 * driver interface. 4383 */ 4384int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) 4385{ 4386 static int interface_count = 0; 4387 4388 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) 4389 return -1; 4390 4391 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, 4392 MAC2STR(wpa_s->own_addr)); 4393 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN); 4394 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); 4395 4396 if (wpa_s->bridge_ifname[0]) { 4397 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " 4398 "interface '%s'", wpa_s->bridge_ifname); 4399 wpa_s->l2_br = l2_packet_init_bridge( 4400 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr, 4401 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1); 4402 if (wpa_s->l2_br == NULL) { 4403 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " 4404 "connection for the bridge interface '%s'", 4405 wpa_s->bridge_ifname); 4406 return -1; 4407 } 4408 } 4409 4410 if (wpa_s->conf->ap_scan == 2 && 4411 os_strcmp(wpa_s->driver->name, "nl80211") == 0) { 4412 wpa_printf(MSG_INFO, 4413 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures"); 4414 } 4415 4416 wpa_clear_keys(wpa_s, NULL); 4417 4418 /* Make sure that TKIP countermeasures are not left enabled (could 4419 * happen if wpa_supplicant is killed during countermeasures. */ 4420 wpa_drv_set_countermeasures(wpa_s, 0); 4421 4422 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); 4423 wpa_drv_flush_pmkid(wpa_s); 4424 4425 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; 4426 wpa_s->prev_scan_wildcard = 0; 4427 4428 if (wpa_supplicant_enabled_networks(wpa_s)) { 4429 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 4430 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 4431 interface_count = 0; 4432 } 4433#ifndef ANDROID 4434 if (!wpa_s->p2p_mgmt && 4435 wpa_supplicant_delayed_sched_scan(wpa_s, 4436 interface_count % 3, 4437 100000)) 4438 wpa_supplicant_req_scan(wpa_s, interface_count % 3, 4439 100000); 4440#endif /* ANDROID */ 4441 interface_count++; 4442 } else 4443 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 4444 4445 return 0; 4446} 4447 4448 4449static int wpa_supplicant_daemon(const char *pid_file) 4450{ 4451 wpa_printf(MSG_DEBUG, "Daemonize.."); 4452 return os_daemonize(pid_file); 4453} 4454 4455 4456static struct wpa_supplicant * 4457wpa_supplicant_alloc(struct wpa_supplicant *parent) 4458{ 4459 struct wpa_supplicant *wpa_s; 4460 4461 wpa_s = os_zalloc(sizeof(*wpa_s)); 4462 if (wpa_s == NULL) 4463 return NULL; 4464 wpa_s->scan_req = INITIAL_SCAN_REQ; 4465 wpa_s->scan_interval = 5; 4466 wpa_s->new_connection = 1; 4467 wpa_s->parent = parent ? parent : wpa_s; 4468 wpa_s->p2pdev = wpa_s->parent; 4469 wpa_s->sched_scanning = 0; 4470 4471 dl_list_init(&wpa_s->bss_tmp_disallowed); 4472 dl_list_init(&wpa_s->fils_hlp_req); 4473 4474 return wpa_s; 4475} 4476 4477 4478#ifdef CONFIG_HT_OVERRIDES 4479 4480static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s, 4481 struct ieee80211_ht_capabilities *htcaps, 4482 struct ieee80211_ht_capabilities *htcaps_mask, 4483 const char *ht_mcs) 4484{ 4485 /* parse ht_mcs into hex array */ 4486 int i; 4487 const char *tmp = ht_mcs; 4488 char *end = NULL; 4489 4490 /* If ht_mcs is null, do not set anything */ 4491 if (!ht_mcs) 4492 return 0; 4493 4494 /* This is what we are setting in the kernel */ 4495 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN); 4496 4497 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs); 4498 4499 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { 4500 long v; 4501 4502 errno = 0; 4503 v = strtol(tmp, &end, 16); 4504 4505 if (errno == 0) { 4506 wpa_msg(wpa_s, MSG_DEBUG, 4507 "htcap value[%i]: %ld end: %p tmp: %p", 4508 i, v, end, tmp); 4509 if (end == tmp) 4510 break; 4511 4512 htcaps->supported_mcs_set[i] = v; 4513 tmp = end; 4514 } else { 4515 wpa_msg(wpa_s, MSG_ERROR, 4516 "Failed to parse ht-mcs: %s, error: %s\n", 4517 ht_mcs, strerror(errno)); 4518 return -1; 4519 } 4520 } 4521 4522 /* 4523 * If we were able to parse any values, then set mask for the MCS set. 4524 */ 4525 if (i) { 4526 os_memset(&htcaps_mask->supported_mcs_set, 0xff, 4527 IEEE80211_HT_MCS_MASK_LEN - 1); 4528 /* skip the 3 reserved bits */ 4529 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] = 4530 0x1f; 4531 } 4532 4533 return 0; 4534} 4535 4536 4537static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s, 4538 struct ieee80211_ht_capabilities *htcaps, 4539 struct ieee80211_ht_capabilities *htcaps_mask, 4540 int disabled) 4541{ 4542 le16 msk; 4543 4544 if (disabled == -1) 4545 return 0; 4546 4547 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled); 4548 4549 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE); 4550 htcaps_mask->ht_capabilities_info |= msk; 4551 if (disabled) 4552 htcaps->ht_capabilities_info &= msk; 4553 else 4554 htcaps->ht_capabilities_info |= msk; 4555 4556 return 0; 4557} 4558 4559 4560static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s, 4561 struct ieee80211_ht_capabilities *htcaps, 4562 struct ieee80211_ht_capabilities *htcaps_mask, 4563 int factor) 4564{ 4565 if (factor == -1) 4566 return 0; 4567 4568 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor); 4569 4570 if (factor < 0 || factor > 3) { 4571 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. " 4572 "Must be 0-3 or -1", factor); 4573 return -EINVAL; 4574 } 4575 4576 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */ 4577 htcaps->a_mpdu_params &= ~0x3; 4578 htcaps->a_mpdu_params |= factor & 0x3; 4579 4580 return 0; 4581} 4582 4583 4584static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s, 4585 struct ieee80211_ht_capabilities *htcaps, 4586 struct ieee80211_ht_capabilities *htcaps_mask, 4587 int density) 4588{ 4589 if (density == -1) 4590 return 0; 4591 4592 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density); 4593 4594 if (density < 0 || density > 7) { 4595 wpa_msg(wpa_s, MSG_ERROR, 4596 "ampdu_density: %d out of range. Must be 0-7 or -1.", 4597 density); 4598 return -EINVAL; 4599 } 4600 4601 htcaps_mask->a_mpdu_params |= 0x1C; 4602 htcaps->a_mpdu_params &= ~(0x1C); 4603 htcaps->a_mpdu_params |= (density << 2) & 0x1C; 4604 4605 return 0; 4606} 4607 4608 4609static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s, 4610 struct ieee80211_ht_capabilities *htcaps, 4611 struct ieee80211_ht_capabilities *htcaps_mask, 4612 int disabled) 4613{ 4614 if (disabled) 4615 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled); 4616 4617 set_disable_ht40(htcaps, disabled); 4618 set_disable_ht40(htcaps_mask, 0); 4619 4620 return 0; 4621} 4622 4623 4624static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s, 4625 struct ieee80211_ht_capabilities *htcaps, 4626 struct ieee80211_ht_capabilities *htcaps_mask, 4627 int disabled) 4628{ 4629 /* Masking these out disables SGI */ 4630 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ | 4631 HT_CAP_INFO_SHORT_GI40MHZ); 4632 4633 if (disabled) 4634 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled); 4635 4636 if (disabled) 4637 htcaps->ht_capabilities_info &= ~msk; 4638 else 4639 htcaps->ht_capabilities_info |= msk; 4640 4641 htcaps_mask->ht_capabilities_info |= msk; 4642 4643 return 0; 4644} 4645 4646 4647static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s, 4648 struct ieee80211_ht_capabilities *htcaps, 4649 struct ieee80211_ht_capabilities *htcaps_mask, 4650 int disabled) 4651{ 4652 /* Masking these out disables LDPC */ 4653 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP); 4654 4655 if (disabled) 4656 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled); 4657 4658 if (disabled) 4659 htcaps->ht_capabilities_info &= ~msk; 4660 else 4661 htcaps->ht_capabilities_info |= msk; 4662 4663 htcaps_mask->ht_capabilities_info |= msk; 4664 4665 return 0; 4666} 4667 4668 4669static int wpa_set_tx_stbc(struct wpa_supplicant *wpa_s, 4670 struct ieee80211_ht_capabilities *htcaps, 4671 struct ieee80211_ht_capabilities *htcaps_mask, 4672 int tx_stbc) 4673{ 4674 le16 msk = host_to_le16(HT_CAP_INFO_TX_STBC); 4675 4676 if (tx_stbc == -1) 4677 return 0; 4678 4679 wpa_msg(wpa_s, MSG_DEBUG, "set_tx_stbc: %d", tx_stbc); 4680 4681 if (tx_stbc < 0 || tx_stbc > 1) { 4682 wpa_msg(wpa_s, MSG_ERROR, 4683 "tx_stbc: %d out of range. Must be 0-1 or -1", tx_stbc); 4684 return -EINVAL; 4685 } 4686 4687 htcaps_mask->ht_capabilities_info |= msk; 4688 htcaps->ht_capabilities_info &= ~msk; 4689 htcaps->ht_capabilities_info |= (tx_stbc << 7) & msk; 4690 4691 return 0; 4692} 4693 4694 4695static int wpa_set_rx_stbc(struct wpa_supplicant *wpa_s, 4696 struct ieee80211_ht_capabilities *htcaps, 4697 struct ieee80211_ht_capabilities *htcaps_mask, 4698 int rx_stbc) 4699{ 4700 le16 msk = host_to_le16(HT_CAP_INFO_RX_STBC_MASK); 4701 4702 if (rx_stbc == -1) 4703 return 0; 4704 4705 wpa_msg(wpa_s, MSG_DEBUG, "set_rx_stbc: %d", rx_stbc); 4706 4707 if (rx_stbc < 0 || rx_stbc > 3) { 4708 wpa_msg(wpa_s, MSG_ERROR, 4709 "rx_stbc: %d out of range. Must be 0-3 or -1", rx_stbc); 4710 return -EINVAL; 4711 } 4712 4713 htcaps_mask->ht_capabilities_info |= msk; 4714 htcaps->ht_capabilities_info &= ~msk; 4715 htcaps->ht_capabilities_info |= (rx_stbc << 8) & msk; 4716 4717 return 0; 4718} 4719 4720 4721void wpa_supplicant_apply_ht_overrides( 4722 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, 4723 struct wpa_driver_associate_params *params) 4724{ 4725 struct ieee80211_ht_capabilities *htcaps; 4726 struct ieee80211_ht_capabilities *htcaps_mask; 4727 4728 if (!ssid) 4729 return; 4730 4731 params->disable_ht = ssid->disable_ht; 4732 if (!params->htcaps || !params->htcaps_mask) 4733 return; 4734 4735 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps; 4736 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask; 4737 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs); 4738 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask, 4739 ssid->disable_max_amsdu); 4740 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor); 4741 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density); 4742 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40); 4743 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi); 4744 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc); 4745 wpa_set_rx_stbc(wpa_s, htcaps, htcaps_mask, ssid->rx_stbc); 4746 wpa_set_tx_stbc(wpa_s, htcaps, htcaps_mask, ssid->tx_stbc); 4747 4748 if (ssid->ht40_intolerant) { 4749 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT); 4750 htcaps->ht_capabilities_info |= bit; 4751 htcaps_mask->ht_capabilities_info |= bit; 4752 } 4753} 4754 4755#endif /* CONFIG_HT_OVERRIDES */ 4756 4757 4758#ifdef CONFIG_VHT_OVERRIDES 4759void wpa_supplicant_apply_vht_overrides( 4760 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, 4761 struct wpa_driver_associate_params *params) 4762{ 4763 struct ieee80211_vht_capabilities *vhtcaps; 4764 struct ieee80211_vht_capabilities *vhtcaps_mask; 4765 4766 if (!ssid) 4767 return; 4768 4769 params->disable_vht = ssid->disable_vht; 4770 4771 vhtcaps = (void *) params->vhtcaps; 4772 vhtcaps_mask = (void *) params->vhtcaps_mask; 4773 4774 if (!vhtcaps || !vhtcaps_mask) 4775 return; 4776 4777 vhtcaps->vht_capabilities_info = host_to_le32(ssid->vht_capa); 4778 vhtcaps_mask->vht_capabilities_info = host_to_le32(ssid->vht_capa_mask); 4779 4780#ifdef CONFIG_HT_OVERRIDES 4781 if (ssid->disable_sgi) { 4782 vhtcaps_mask->vht_capabilities_info |= (VHT_CAP_SHORT_GI_80 | 4783 VHT_CAP_SHORT_GI_160); 4784 vhtcaps->vht_capabilities_info &= ~(VHT_CAP_SHORT_GI_80 | 4785 VHT_CAP_SHORT_GI_160); 4786 wpa_msg(wpa_s, MSG_DEBUG, 4787 "disable-sgi override specified, vht-caps: 0x%x", 4788 vhtcaps->vht_capabilities_info); 4789 } 4790 4791 /* if max ampdu is <= 3, we have to make the HT cap the same */ 4792 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) { 4793 int max_ampdu; 4794 4795 max_ampdu = (ssid->vht_capa & 4796 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >> 4797 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT; 4798 4799 max_ampdu = max_ampdu < 3 ? max_ampdu : 3; 4800 wpa_set_ampdu_factor(wpa_s, 4801 (void *) params->htcaps, 4802 (void *) params->htcaps_mask, 4803 max_ampdu); 4804 } 4805#endif /* CONFIG_HT_OVERRIDES */ 4806 4807#define OVERRIDE_MCS(i) \ 4808 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \ 4809 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \ 4810 host_to_le16(3 << 2 * (i - 1)); \ 4811 vhtcaps->vht_supported_mcs_set.tx_map |= \ 4812 host_to_le16(ssid->vht_tx_mcs_nss_ ##i << \ 4813 2 * (i - 1)); \ 4814 } \ 4815 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \ 4816 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \ 4817 host_to_le16(3 << 2 * (i - 1)); \ 4818 vhtcaps->vht_supported_mcs_set.rx_map |= \ 4819 host_to_le16(ssid->vht_rx_mcs_nss_ ##i << \ 4820 2 * (i - 1)); \ 4821 } 4822 4823 OVERRIDE_MCS(1); 4824 OVERRIDE_MCS(2); 4825 OVERRIDE_MCS(3); 4826 OVERRIDE_MCS(4); 4827 OVERRIDE_MCS(5); 4828 OVERRIDE_MCS(6); 4829 OVERRIDE_MCS(7); 4830 OVERRIDE_MCS(8); 4831} 4832#endif /* CONFIG_VHT_OVERRIDES */ 4833 4834 4835static int pcsc_reader_init(struct wpa_supplicant *wpa_s) 4836{ 4837#ifdef PCSC_FUNCS 4838 size_t len; 4839 4840 if (!wpa_s->conf->pcsc_reader) 4841 return 0; 4842 4843 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); 4844 if (!wpa_s->scard) 4845 return 1; 4846 4847 if (wpa_s->conf->pcsc_pin && 4848 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) { 4849 scard_deinit(wpa_s->scard); 4850 wpa_s->scard = NULL; 4851 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed"); 4852 return -1; 4853 } 4854 4855 len = sizeof(wpa_s->imsi) - 1; 4856 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) { 4857 scard_deinit(wpa_s->scard); 4858 wpa_s->scard = NULL; 4859 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI"); 4860 return -1; 4861 } 4862 wpa_s->imsi[len] = '\0'; 4863 4864 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard); 4865 4866 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)", 4867 wpa_s->imsi, wpa_s->mnc_len); 4868 4869 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 4870 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 4871#endif /* PCSC_FUNCS */ 4872 4873 return 0; 4874} 4875 4876 4877int wpas_init_ext_pw(struct wpa_supplicant *wpa_s) 4878{ 4879 char *val, *pos; 4880 4881 ext_password_deinit(wpa_s->ext_pw); 4882 wpa_s->ext_pw = NULL; 4883 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL); 4884 4885 if (!wpa_s->conf->ext_password_backend) 4886 return 0; 4887 4888 val = os_strdup(wpa_s->conf->ext_password_backend); 4889 if (val == NULL) 4890 return -1; 4891 pos = os_strchr(val, ':'); 4892 if (pos) 4893 *pos++ = '\0'; 4894 4895 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val); 4896 4897 wpa_s->ext_pw = ext_password_init(val, pos); 4898 os_free(val); 4899 if (wpa_s->ext_pw == NULL) { 4900 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend"); 4901 return -1; 4902 } 4903 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw); 4904 4905 return 0; 4906} 4907 4908 4909#ifdef CONFIG_FST 4910 4911static const u8 * wpas_fst_get_bssid_cb(void *ctx) 4912{ 4913 struct wpa_supplicant *wpa_s = ctx; 4914 4915 return (is_zero_ether_addr(wpa_s->bssid) || 4916 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid; 4917} 4918 4919 4920static void wpas_fst_get_channel_info_cb(void *ctx, 4921 enum hostapd_hw_mode *hw_mode, 4922 u8 *channel) 4923{ 4924 struct wpa_supplicant *wpa_s = ctx; 4925 4926 if (wpa_s->current_bss) { 4927 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq, 4928 channel); 4929 } else if (wpa_s->hw.num_modes) { 4930 *hw_mode = wpa_s->hw.modes[0].mode; 4931 } else { 4932 WPA_ASSERT(0); 4933 *hw_mode = 0; 4934 } 4935} 4936 4937 4938static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes) 4939{ 4940 struct wpa_supplicant *wpa_s = ctx; 4941 4942 *modes = wpa_s->hw.modes; 4943 return wpa_s->hw.num_modes; 4944} 4945 4946 4947static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies) 4948{ 4949 struct wpa_supplicant *wpa_s = ctx; 4950 4951 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies); 4952 wpa_s->fst_ies = fst_ies; 4953} 4954 4955 4956static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data) 4957{ 4958 struct wpa_supplicant *wpa_s = ctx; 4959 4960 if (os_memcmp(wpa_s->bssid, da, ETH_ALEN) != 0) { 4961 wpa_printf(MSG_INFO, "FST:%s:bssid=" MACSTR " != da=" MACSTR, 4962 __func__, MAC2STR(wpa_s->bssid), MAC2STR(da)); 4963 return -1; 4964 } 4965 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid, 4966 wpa_s->own_addr, wpa_s->bssid, 4967 wpabuf_head(data), wpabuf_len(data), 4968 0); 4969} 4970 4971 4972static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr) 4973{ 4974 struct wpa_supplicant *wpa_s = ctx; 4975 4976 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0); 4977 return wpa_s->received_mb_ies; 4978} 4979 4980 4981static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr, 4982 const u8 *buf, size_t size) 4983{ 4984 struct wpa_supplicant *wpa_s = ctx; 4985 struct mb_ies_info info; 4986 4987 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0); 4988 4989 if (!mb_ies_info_by_ies(&info, buf, size)) { 4990 wpabuf_free(wpa_s->received_mb_ies); 4991 wpa_s->received_mb_ies = mb_ies_by_info(&info); 4992 } 4993} 4994 4995 4996static const u8 * wpas_fst_get_peer_first(void *ctx, 4997 struct fst_get_peer_ctx **get_ctx, 4998 Boolean mb_only) 4999{ 5000 struct wpa_supplicant *wpa_s = ctx; 5001 5002 *get_ctx = NULL; 5003 if (!is_zero_ether_addr(wpa_s->bssid)) 5004 return (wpa_s->received_mb_ies || !mb_only) ? 5005 wpa_s->bssid : NULL; 5006 return NULL; 5007} 5008 5009 5010static const u8 * wpas_fst_get_peer_next(void *ctx, 5011 struct fst_get_peer_ctx **get_ctx, 5012 Boolean mb_only) 5013{ 5014 return NULL; 5015} 5016 5017void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s, 5018 struct fst_wpa_obj *iface_obj) 5019{ 5020 iface_obj->ctx = wpa_s; 5021 iface_obj->get_bssid = wpas_fst_get_bssid_cb; 5022 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb; 5023 iface_obj->get_hw_modes = wpas_fst_get_hw_modes; 5024 iface_obj->set_ies = wpas_fst_set_ies_cb; 5025 iface_obj->send_action = wpas_fst_send_action_cb; 5026 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb; 5027 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb; 5028 iface_obj->get_peer_first = wpas_fst_get_peer_first; 5029 iface_obj->get_peer_next = wpas_fst_get_peer_next; 5030} 5031#endif /* CONFIG_FST */ 5032 5033static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s, 5034 const struct wpa_driver_capa *capa) 5035{ 5036 struct wowlan_triggers *triggers; 5037 int ret = 0; 5038 5039 if (!wpa_s->conf->wowlan_triggers) 5040 return 0; 5041 5042 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa); 5043 if (triggers) { 5044 ret = wpa_drv_wowlan(wpa_s, triggers); 5045 os_free(triggers); 5046 } 5047 return ret; 5048} 5049 5050 5051enum wpa_radio_work_band wpas_freq_to_band(int freq) 5052{ 5053 if (freq < 3000) 5054 return BAND_2_4_GHZ; 5055 if (freq > 50000) 5056 return BAND_60_GHZ; 5057 return BAND_5_GHZ; 5058} 5059 5060 5061unsigned int wpas_get_bands(struct wpa_supplicant *wpa_s, const int *freqs) 5062{ 5063 int i; 5064 unsigned int band = 0; 5065 5066 if (freqs) { 5067 /* freqs are specified for the radio work */ 5068 for (i = 0; freqs[i]; i++) 5069 band |= wpas_freq_to_band(freqs[i]); 5070 } else { 5071 /* 5072 * freqs are not specified, implies all 5073 * the supported freqs by HW 5074 */ 5075 for (i = 0; i < wpa_s->hw.num_modes; i++) { 5076 if (wpa_s->hw.modes[i].num_channels != 0) { 5077 if (wpa_s->hw.modes[i].mode == 5078 HOSTAPD_MODE_IEEE80211B || 5079 wpa_s->hw.modes[i].mode == 5080 HOSTAPD_MODE_IEEE80211G) 5081 band |= BAND_2_4_GHZ; 5082 else if (wpa_s->hw.modes[i].mode == 5083 HOSTAPD_MODE_IEEE80211A) 5084 band |= BAND_5_GHZ; 5085 else if (wpa_s->hw.modes[i].mode == 5086 HOSTAPD_MODE_IEEE80211AD) 5087 band |= BAND_60_GHZ; 5088 else if (wpa_s->hw.modes[i].mode == 5089 HOSTAPD_MODE_IEEE80211ANY) 5090 band = BAND_2_4_GHZ | BAND_5_GHZ | 5091 BAND_60_GHZ; 5092 } 5093 } 5094 } 5095 5096 return band; 5097} 5098 5099 5100static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s, 5101 const char *rn) 5102{ 5103 struct wpa_supplicant *iface = wpa_s->global->ifaces; 5104 struct wpa_radio *radio; 5105 5106 while (rn && iface) { 5107 radio = iface->radio; 5108 if (radio && os_strcmp(rn, radio->name) == 0) { 5109 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s", 5110 wpa_s->ifname, rn); 5111 dl_list_add(&radio->ifaces, &wpa_s->radio_list); 5112 return radio; 5113 } 5114 5115 iface = iface->next; 5116 } 5117 5118 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s", 5119 wpa_s->ifname, rn ? rn : "N/A"); 5120 radio = os_zalloc(sizeof(*radio)); 5121 if (radio == NULL) 5122 return NULL; 5123 5124 if (rn) 5125 os_strlcpy(radio->name, rn, sizeof(radio->name)); 5126 dl_list_init(&radio->ifaces); 5127 dl_list_init(&radio->work); 5128 dl_list_add(&radio->ifaces, &wpa_s->radio_list); 5129 5130 return radio; 5131} 5132 5133 5134static void radio_work_free(struct wpa_radio_work *work) 5135{ 5136 if (work->wpa_s->scan_work == work) { 5137 /* This should not really happen. */ 5138 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work", 5139 work->type, work, work->started); 5140 work->wpa_s->scan_work = NULL; 5141 } 5142 5143#ifdef CONFIG_P2P 5144 if (work->wpa_s->p2p_scan_work == work) { 5145 /* This should not really happen. */ 5146 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work", 5147 work->type, work, work->started); 5148 work->wpa_s->p2p_scan_work = NULL; 5149 } 5150#endif /* CONFIG_P2P */ 5151 5152 if (work->started) { 5153 work->wpa_s->radio->num_active_works--; 5154 wpa_dbg(work->wpa_s, MSG_DEBUG, 5155 "radio_work_free('%s'@%p): num_active_works --> %u", 5156 work->type, work, 5157 work->wpa_s->radio->num_active_works); 5158 } 5159 5160 dl_list_del(&work->list); 5161 os_free(work); 5162} 5163 5164 5165static int radio_work_is_connect(struct wpa_radio_work *work) 5166{ 5167 return os_strcmp(work->type, "sme-connect") == 0 || 5168 os_strcmp(work->type, "connect") == 0; 5169} 5170 5171 5172static int radio_work_is_scan(struct wpa_radio_work *work) 5173{ 5174 return os_strcmp(work->type, "scan") == 0 || 5175 os_strcmp(work->type, "p2p-scan") == 0; 5176} 5177 5178 5179static struct wpa_radio_work * radio_work_get_next_work(struct wpa_radio *radio) 5180{ 5181 struct wpa_radio_work *active_work = NULL; 5182 struct wpa_radio_work *tmp; 5183 5184 /* Get the active work to know the type and band. */ 5185 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) { 5186 if (tmp->started) { 5187 active_work = tmp; 5188 break; 5189 } 5190 } 5191 5192 if (!active_work) { 5193 /* No active work, start one */ 5194 radio->num_active_works = 0; 5195 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, 5196 list) { 5197 if (os_strcmp(tmp->type, "scan") == 0 && 5198 radio->external_scan_running && 5199 (((struct wpa_driver_scan_params *) 5200 tmp->ctx)->only_new_results || 5201 tmp->wpa_s->clear_driver_scan_cache)) 5202 continue; 5203 return tmp; 5204 } 5205 return NULL; 5206 } 5207 5208 if (radio_work_is_connect(active_work)) { 5209 /* 5210 * If the active work is either connect or sme-connect, 5211 * do not parallelize them with other radio works. 5212 */ 5213 wpa_dbg(active_work->wpa_s, MSG_DEBUG, 5214 "Do not parallelize radio work with %s", 5215 active_work->type); 5216 return NULL; 5217 } 5218 5219 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) { 5220 if (tmp->started) 5221 continue; 5222 5223 /* 5224 * If connect or sme-connect are enqueued, parallelize only 5225 * those operations ahead of them in the queue. 5226 */ 5227 if (radio_work_is_connect(tmp)) 5228 break; 5229 5230 /* Serialize parallel scan and p2p_scan operations on the same 5231 * interface since the driver_nl80211 mechanism for tracking 5232 * scan cookies does not yet have support for this. */ 5233 if (active_work->wpa_s == tmp->wpa_s && 5234 radio_work_is_scan(active_work) && 5235 radio_work_is_scan(tmp)) { 5236 wpa_dbg(active_work->wpa_s, MSG_DEBUG, 5237 "Do not start work '%s' when another work '%s' is already scheduled", 5238 tmp->type, active_work->type); 5239 continue; 5240 } 5241 /* 5242 * Check that the radio works are distinct and 5243 * on different bands. 5244 */ 5245 if (os_strcmp(active_work->type, tmp->type) != 0 && 5246 (active_work->bands != tmp->bands)) { 5247 /* 5248 * If a scan has to be scheduled through nl80211 scan 5249 * interface and if an external scan is already running, 5250 * do not schedule the scan since it is likely to get 5251 * rejected by kernel. 5252 */ 5253 if (os_strcmp(tmp->type, "scan") == 0 && 5254 radio->external_scan_running && 5255 (((struct wpa_driver_scan_params *) 5256 tmp->ctx)->only_new_results || 5257 tmp->wpa_s->clear_driver_scan_cache)) 5258 continue; 5259 5260 wpa_dbg(active_work->wpa_s, MSG_DEBUG, 5261 "active_work:%s new_work:%s", 5262 active_work->type, tmp->type); 5263 return tmp; 5264 } 5265 } 5266 5267 /* Did not find a radio work to schedule in parallel. */ 5268 return NULL; 5269} 5270 5271 5272static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx) 5273{ 5274 struct wpa_radio *radio = eloop_ctx; 5275 struct wpa_radio_work *work; 5276 struct os_reltime now, diff; 5277 struct wpa_supplicant *wpa_s; 5278 5279 work = dl_list_first(&radio->work, struct wpa_radio_work, list); 5280 if (work == NULL) { 5281 radio->num_active_works = 0; 5282 return; 5283 } 5284 5285 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant, 5286 radio_list); 5287 5288 if (!(wpa_s && 5289 wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)) { 5290 if (work->started) 5291 return; /* already started and still in progress */ 5292 5293 if (wpa_s && wpa_s->radio->external_scan_running) { 5294 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes"); 5295 return; 5296 } 5297 } else { 5298 work = NULL; 5299 if (radio->num_active_works < MAX_ACTIVE_WORKS) { 5300 /* get the work to schedule next */ 5301 work = radio_work_get_next_work(radio); 5302 } 5303 if (!work) 5304 return; 5305 } 5306 5307 wpa_s = work->wpa_s; 5308 os_get_reltime(&now); 5309 os_reltime_sub(&now, &work->time, &diff); 5310 wpa_dbg(wpa_s, MSG_DEBUG, 5311 "Starting radio work '%s'@%p after %jd.%06jd second wait", 5312 work->type, work, (intmax_t)diff.sec, (intmax_t)diff.usec); 5313 work->started = 1; 5314 work->time = now; 5315 radio->num_active_works++; 5316 5317 work->cb(work, 0); 5318 5319 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) && 5320 radio->num_active_works < MAX_ACTIVE_WORKS) 5321 radio_work_check_next(wpa_s); 5322} 5323 5324 5325/* 5326 * This function removes both started and pending radio works running on 5327 * the provided interface's radio. 5328 * Prior to the removal of the radio work, its callback (cb) is called with 5329 * deinit set to be 1. Each work's callback is responsible for clearing its 5330 * internal data and restoring to a correct state. 5331 * @wpa_s: wpa_supplicant data 5332 * @type: type of works to be removed 5333 * @remove_all: 1 to remove all the works on this radio, 0 to remove only 5334 * this interface's works. 5335 */ 5336void radio_remove_works(struct wpa_supplicant *wpa_s, 5337 const char *type, int remove_all) 5338{ 5339 struct wpa_radio_work *work, *tmp; 5340 struct wpa_radio *radio = wpa_s->radio; 5341 5342 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work, 5343 list) { 5344 if (type && os_strcmp(type, work->type) != 0) 5345 continue; 5346 5347 /* skip other ifaces' works */ 5348 if (!remove_all && work->wpa_s != wpa_s) 5349 continue; 5350 5351 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s", 5352 work->type, work, work->started ? " (started)" : ""); 5353 work->cb(work, 1); 5354 radio_work_free(work); 5355 } 5356 5357 /* in case we removed the started work */ 5358 radio_work_check_next(wpa_s); 5359} 5360 5361 5362void radio_remove_pending_work(struct wpa_supplicant *wpa_s, void *ctx) 5363{ 5364 struct wpa_radio_work *work; 5365 struct wpa_radio *radio = wpa_s->radio; 5366 5367 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) { 5368 if (work->ctx != ctx) 5369 continue; 5370 wpa_dbg(wpa_s, MSG_DEBUG, "Free pending radio work '%s'@%p%s", 5371 work->type, work, work->started ? " (started)" : ""); 5372 radio_work_free(work); 5373 break; 5374 } 5375} 5376 5377 5378static void radio_remove_interface(struct wpa_supplicant *wpa_s) 5379{ 5380 struct wpa_radio *radio = wpa_s->radio; 5381 5382 if (!radio) 5383 return; 5384 5385 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s", 5386 wpa_s->ifname, radio->name); 5387 dl_list_del(&wpa_s->radio_list); 5388 radio_remove_works(wpa_s, NULL, 0); 5389 wpa_s->radio = NULL; 5390 if (!dl_list_empty(&radio->ifaces)) 5391 return; /* Interfaces remain for this radio */ 5392 5393 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name); 5394 eloop_cancel_timeout(radio_start_next_work, radio, NULL); 5395 os_free(radio); 5396} 5397 5398 5399void radio_work_check_next(struct wpa_supplicant *wpa_s) 5400{ 5401 struct wpa_radio *radio = wpa_s->radio; 5402 5403 if (dl_list_empty(&radio->work)) 5404 return; 5405 if (wpa_s->ext_work_in_progress) { 5406 wpa_printf(MSG_DEBUG, 5407 "External radio work in progress - delay start of pending item"); 5408 return; 5409 } 5410 eloop_cancel_timeout(radio_start_next_work, radio, NULL); 5411 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL); 5412} 5413 5414 5415/** 5416 * radio_add_work - Add a radio work item 5417 * @wpa_s: Pointer to wpa_supplicant data 5418 * @freq: Frequency of the offchannel operation in MHz or 0 5419 * @type: Unique identifier for each type of work 5420 * @next: Force as the next work to be executed 5421 * @cb: Callback function for indicating when radio is available 5422 * @ctx: Context pointer for the work (work->ctx in cb()) 5423 * Returns: 0 on success, -1 on failure 5424 * 5425 * This function is used to request time for an operation that requires 5426 * exclusive radio control. Once the radio is available, the registered callback 5427 * function will be called. radio_work_done() must be called once the exclusive 5428 * radio operation has been completed, so that the radio is freed for other 5429 * operations. The special case of deinit=1 is used to free the context data 5430 * during interface removal. That does not allow the callback function to start 5431 * the radio operation, i.e., it must free any resources allocated for the radio 5432 * work and return. 5433 * 5434 * The @freq parameter can be used to indicate a single channel on which the 5435 * offchannel operation will occur. This may allow multiple radio work 5436 * operations to be performed in parallel if they apply for the same channel. 5437 * Setting this to 0 indicates that the work item may use multiple channels or 5438 * requires exclusive control of the radio. 5439 */ 5440int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq, 5441 const char *type, int next, 5442 void (*cb)(struct wpa_radio_work *work, int deinit), 5443 void *ctx) 5444{ 5445 struct wpa_radio *radio = wpa_s->radio; 5446 struct wpa_radio_work *work; 5447 int was_empty; 5448 5449 work = os_zalloc(sizeof(*work)); 5450 if (work == NULL) 5451 return -1; 5452 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work); 5453 os_get_reltime(&work->time); 5454 work->freq = freq; 5455 work->type = type; 5456 work->wpa_s = wpa_s; 5457 work->cb = cb; 5458 work->ctx = ctx; 5459 5460 if (freq) 5461 work->bands = wpas_freq_to_band(freq); 5462 else if (os_strcmp(type, "scan") == 0 || 5463 os_strcmp(type, "p2p-scan") == 0) 5464 work->bands = wpas_get_bands(wpa_s, 5465 ((struct wpa_driver_scan_params *) 5466 ctx)->freqs); 5467 else 5468 work->bands = wpas_get_bands(wpa_s, NULL); 5469 5470 was_empty = dl_list_empty(&wpa_s->radio->work); 5471 if (next) 5472 dl_list_add(&wpa_s->radio->work, &work->list); 5473 else 5474 dl_list_add_tail(&wpa_s->radio->work, &work->list); 5475 if (was_empty) { 5476 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately"); 5477 radio_work_check_next(wpa_s); 5478 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) 5479 && radio->num_active_works < MAX_ACTIVE_WORKS) { 5480 wpa_dbg(wpa_s, MSG_DEBUG, 5481 "Try to schedule a radio work (num_active_works=%u)", 5482 radio->num_active_works); 5483 radio_work_check_next(wpa_s); 5484 } 5485 5486 return 0; 5487} 5488 5489 5490/** 5491 * radio_work_done - Indicate that a radio work item has been completed 5492 * @work: Completed work 5493 * 5494 * This function is called once the callback function registered with 5495 * radio_add_work() has completed its work. 5496 */ 5497void radio_work_done(struct wpa_radio_work *work) 5498{ 5499 struct wpa_supplicant *wpa_s = work->wpa_s; 5500 struct os_reltime now, diff; 5501 unsigned int started = work->started; 5502 5503 os_get_reltime(&now); 5504 os_reltime_sub(&now, &work->time, &diff); 5505 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %jd.%06ld seconds", 5506 work->type, work, started ? "done" : "canceled", 5507 (intmax_t)diff.sec, (long)diff.usec); 5508 radio_work_free(work); 5509 if (started) 5510 radio_work_check_next(wpa_s); 5511} 5512 5513 5514struct wpa_radio_work * 5515radio_work_pending(struct wpa_supplicant *wpa_s, const char *type) 5516{ 5517 struct wpa_radio_work *work; 5518 struct wpa_radio *radio = wpa_s->radio; 5519 5520 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) { 5521 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0) 5522 return work; 5523 } 5524 5525 return NULL; 5526} 5527 5528 5529static int wpas_init_driver(struct wpa_supplicant *wpa_s, 5530 const struct wpa_interface *iface) 5531{ 5532 const char *ifname, *driver, *rn; 5533 5534 driver = iface->driver; 5535next_driver: 5536 if (wpa_supplicant_set_driver(wpa_s, driver) < 0) 5537 return -1; 5538 5539 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); 5540 if (wpa_s->drv_priv == NULL) { 5541 const char *pos; 5542 int level; 5543 5544 pos = driver ? os_strchr(driver, ',') : NULL; 5545 if (pos) { 5546 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " 5547 "driver interface - try next driver wrapper"); 5548 driver = pos + 1; 5549 goto next_driver; 5550 } 5551 5552#ifdef CONFIG_MATCH_IFACE 5553 if (wpa_s->matched == WPA_IFACE_MATCHEDNULL) 5554 level = MSG_DEBUG; 5555 else 5556#endif 5557 level = MSG_ERROR; 5558 wpa_msg(wpa_s, level, "Failed to initialize driver " 5559 "interface"); 5560 return -1; 5561 } 5562 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { 5563 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " 5564 "driver_param '%s'", wpa_s->conf->driver_param); 5565 return -1; 5566 } 5567 5568 ifname = wpa_drv_get_ifname(wpa_s); 5569 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { 5570 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " 5571 "interface name with '%s'", ifname); 5572 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); 5573 } 5574 5575 rn = wpa_driver_get_radio_name(wpa_s); 5576 if (rn && rn[0] == '\0') 5577 rn = NULL; 5578 5579 wpa_s->radio = radio_add_interface(wpa_s, rn); 5580 if (wpa_s->radio == NULL) 5581 return -1; 5582 5583 return 0; 5584} 5585 5586 5587#ifdef CONFIG_GAS_SERVER 5588 5589static void wpas_gas_server_tx_status(struct wpa_supplicant *wpa_s, 5590 unsigned int freq, const u8 *dst, 5591 const u8 *src, const u8 *bssid, 5592 const u8 *data, size_t data_len, 5593 enum offchannel_send_action_result result) 5594{ 5595 wpa_printf(MSG_DEBUG, "GAS: TX status: freq=%u dst=" MACSTR 5596 " result=%s", 5597 freq, MAC2STR(dst), 5598 result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : 5599 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : 5600 "FAILED")); 5601 gas_server_tx_status(wpa_s->gas_server, dst, data, data_len, 5602 result == OFFCHANNEL_SEND_ACTION_SUCCESS); 5603} 5604 5605 5606static void wpas_gas_server_tx(void *ctx, int freq, const u8 *da, 5607 struct wpabuf *buf, unsigned int wait_time) 5608{ 5609 struct wpa_supplicant *wpa_s = ctx; 5610 const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 5611 5612 if (wait_time > wpa_s->max_remain_on_chan) 5613 wait_time = wpa_s->max_remain_on_chan; 5614 5615 offchannel_send_action(wpa_s, freq, da, wpa_s->own_addr, broadcast, 5616 wpabuf_head(buf), wpabuf_len(buf), 5617 wait_time, wpas_gas_server_tx_status, 0); 5618} 5619 5620#endif /* CONFIG_GAS_SERVER */ 5621 5622static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, 5623 const struct wpa_interface *iface) 5624{ 5625 struct wpa_driver_capa capa; 5626 int capa_res; 5627 u8 dfs_domain; 5628 5629 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " 5630 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, 5631 iface->confname ? iface->confname : "N/A", 5632 iface->driver ? iface->driver : "default", 5633 iface->ctrl_interface ? iface->ctrl_interface : "N/A", 5634 iface->bridge_ifname ? iface->bridge_ifname : "N/A"); 5635 5636 if (iface->confname) { 5637#ifdef CONFIG_BACKEND_FILE 5638 wpa_s->confname = os_rel2abs_path(iface->confname); 5639 if (wpa_s->confname == NULL) { 5640 wpa_printf(MSG_ERROR, "Failed to get absolute path " 5641 "for configuration file '%s'.", 5642 iface->confname); 5643 return -1; 5644 } 5645 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", 5646 iface->confname, wpa_s->confname); 5647#else /* CONFIG_BACKEND_FILE */ 5648 wpa_s->confname = os_strdup(iface->confname); 5649#endif /* CONFIG_BACKEND_FILE */ 5650 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL); 5651 if (wpa_s->conf == NULL) { 5652 wpa_printf(MSG_ERROR, "Failed to read or parse " 5653 "configuration '%s'.", wpa_s->confname); 5654 return -1; 5655 } 5656 wpa_s->confanother = os_rel2abs_path(iface->confanother); 5657 if (wpa_s->confanother && 5658 !wpa_config_read(wpa_s->confanother, wpa_s->conf)) { 5659 wpa_printf(MSG_ERROR, 5660 "Failed to read or parse configuration '%s'.", 5661 wpa_s->confanother); 5662 return -1; 5663 } 5664 5665 /* 5666 * Override ctrl_interface and driver_param if set on command 5667 * line. 5668 */ 5669 if (iface->ctrl_interface) { 5670 os_free(wpa_s->conf->ctrl_interface); 5671 wpa_s->conf->ctrl_interface = 5672 os_strdup(iface->ctrl_interface); 5673 } 5674 5675 if (iface->driver_param) { 5676 os_free(wpa_s->conf->driver_param); 5677 wpa_s->conf->driver_param = 5678 os_strdup(iface->driver_param); 5679 } 5680 5681 if (iface->p2p_mgmt && !iface->ctrl_interface) { 5682 os_free(wpa_s->conf->ctrl_interface); 5683 wpa_s->conf->ctrl_interface = NULL; 5684 } 5685 } else 5686 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, 5687 iface->driver_param); 5688 5689 if (wpa_s->conf == NULL) { 5690 wpa_printf(MSG_ERROR, "\nNo configuration found."); 5691 return -1; 5692 } 5693 5694 if (iface->ifname == NULL) { 5695 wpa_printf(MSG_ERROR, "\nInterface name is required."); 5696 return -1; 5697 } 5698 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { 5699 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", 5700 iface->ifname); 5701 return -1; 5702 } 5703 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); 5704#ifdef CONFIG_MATCH_IFACE 5705 wpa_s->matched = iface->matched; 5706#endif 5707 5708 if (iface->bridge_ifname) { 5709 if (os_strlen(iface->bridge_ifname) >= 5710 sizeof(wpa_s->bridge_ifname)) { 5711 wpa_printf(MSG_ERROR, "\nToo long bridge interface " 5712 "name '%s'.", iface->bridge_ifname); 5713 return -1; 5714 } 5715 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, 5716 sizeof(wpa_s->bridge_ifname)); 5717 } 5718 5719 /* RSNA Supplicant Key Management - INITIALIZE */ 5720 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 5721 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 5722 5723 /* Initialize driver interface and register driver event handler before 5724 * L2 receive handler so that association events are processed before 5725 * EAPOL-Key packets if both become available for the same select() 5726 * call. */ 5727 if (wpas_init_driver(wpa_s, iface) < 0) 5728 return -1; 5729 5730 if (wpa_supplicant_init_wpa(wpa_s) < 0) 5731 return -1; 5732 5733 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, 5734 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : 5735 NULL); 5736 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); 5737 5738 if (wpa_s->conf->dot11RSNAConfigPMKLifetime && 5739 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, 5740 wpa_s->conf->dot11RSNAConfigPMKLifetime)) { 5741 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " 5742 "dot11RSNAConfigPMKLifetime"); 5743 return -1; 5744 } 5745 5746 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && 5747 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, 5748 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { 5749 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " 5750 "dot11RSNAConfigPMKReauthThreshold"); 5751 return -1; 5752 } 5753 5754 if (wpa_s->conf->dot11RSNAConfigSATimeout && 5755 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, 5756 wpa_s->conf->dot11RSNAConfigSATimeout)) { 5757 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " 5758 "dot11RSNAConfigSATimeout"); 5759 return -1; 5760 } 5761 5762 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, 5763 &wpa_s->hw.num_modes, 5764 &wpa_s->hw.flags, 5765 &dfs_domain); 5766 if (wpa_s->hw.modes) { 5767 u16 i; 5768 5769 for (i = 0; i < wpa_s->hw.num_modes; i++) { 5770 if (wpa_s->hw.modes[i].vht_capab) { 5771 wpa_s->hw_capab = CAPAB_VHT; 5772 break; 5773 } 5774 5775 if (wpa_s->hw.modes[i].ht_capab & 5776 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) 5777 wpa_s->hw_capab = CAPAB_HT40; 5778 else if (wpa_s->hw.modes[i].ht_capab && 5779 wpa_s->hw_capab == CAPAB_NO_HT_VHT) 5780 wpa_s->hw_capab = CAPAB_HT; 5781 } 5782 } 5783 5784 capa_res = wpa_drv_get_capa(wpa_s, &capa); 5785 if (capa_res == 0) { 5786 wpa_s->drv_capa_known = 1; 5787 wpa_s->drv_flags = capa.flags; 5788 wpa_s->drv_enc = capa.enc; 5789 wpa_s->drv_smps_modes = capa.smps_modes; 5790 wpa_s->drv_rrm_flags = capa.rrm_flags; 5791 wpa_s->probe_resp_offloads = capa.probe_resp_offloads; 5792 wpa_s->max_scan_ssids = capa.max_scan_ssids; 5793 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; 5794 wpa_s->max_sched_scan_plans = capa.max_sched_scan_plans; 5795 wpa_s->max_sched_scan_plan_interval = 5796 capa.max_sched_scan_plan_interval; 5797 wpa_s->max_sched_scan_plan_iterations = 5798 capa.max_sched_scan_plan_iterations; 5799 wpa_s->sched_scan_supported = capa.sched_scan_supported; 5800 wpa_s->max_match_sets = capa.max_match_sets; 5801 wpa_s->max_remain_on_chan = capa.max_remain_on_chan; 5802 wpa_s->max_stations = capa.max_stations; 5803 wpa_s->extended_capa = capa.extended_capa; 5804 wpa_s->extended_capa_mask = capa.extended_capa_mask; 5805 wpa_s->extended_capa_len = capa.extended_capa_len; 5806 wpa_s->num_multichan_concurrent = 5807 capa.num_multichan_concurrent; 5808 wpa_s->wmm_ac_supported = capa.wmm_ac_supported; 5809 5810 if (capa.mac_addr_rand_scan_supported) 5811 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN; 5812 if (wpa_s->sched_scan_supported && 5813 capa.mac_addr_rand_sched_scan_supported) 5814 wpa_s->mac_addr_rand_supported |= 5815 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO); 5816 5817 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION); 5818 if (wpa_s->extended_capa && 5819 wpa_s->extended_capa_len >= 3 && 5820 wpa_s->extended_capa[2] & 0x40) 5821 wpa_s->multi_bss_support = 1; 5822 } 5823 if (wpa_s->max_remain_on_chan == 0) 5824 wpa_s->max_remain_on_chan = 1000; 5825 5826 /* 5827 * Only take p2p_mgmt parameters when P2P Device is supported. 5828 * Doing it here as it determines whether l2_packet_init() will be done 5829 * during wpa_supplicant_driver_init(). 5830 */ 5831 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) 5832 wpa_s->p2p_mgmt = iface->p2p_mgmt; 5833 5834 if (wpa_s->num_multichan_concurrent == 0) 5835 wpa_s->num_multichan_concurrent = 1; 5836 5837 if (wpa_supplicant_driver_init(wpa_s) < 0) 5838 return -1; 5839 5840#ifdef CONFIG_TDLS 5841 if (!iface->p2p_mgmt && wpa_tdls_init(wpa_s->wpa)) 5842 return -1; 5843#endif /* CONFIG_TDLS */ 5844 5845 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && 5846 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { 5847 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); 5848 return -1; 5849 } 5850 5851#ifdef CONFIG_FST 5852 if (wpa_s->conf->fst_group_id) { 5853 struct fst_iface_cfg cfg; 5854 struct fst_wpa_obj iface_obj; 5855 5856 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj); 5857 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id, 5858 sizeof(cfg.group_id)); 5859 cfg.priority = wpa_s->conf->fst_priority; 5860 cfg.llt = wpa_s->conf->fst_llt; 5861 5862 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr, 5863 &iface_obj, &cfg); 5864 if (!wpa_s->fst) { 5865 wpa_msg(wpa_s, MSG_ERROR, 5866 "FST: Cannot attach iface %s to group %s", 5867 wpa_s->ifname, cfg.group_id); 5868 return -1; 5869 } 5870 } 5871#endif /* CONFIG_FST */ 5872 5873 if (wpas_wps_init(wpa_s)) 5874 return -1; 5875 5876#ifdef CONFIG_GAS_SERVER 5877 wpa_s->gas_server = gas_server_init(wpa_s, wpas_gas_server_tx); 5878 if (!wpa_s->gas_server) { 5879 wpa_printf(MSG_ERROR, "Failed to initialize GAS server"); 5880 return -1; 5881 } 5882#endif /* CONFIG_GAS_SERVER */ 5883 5884#ifdef CONFIG_DPP 5885 if (wpas_dpp_init(wpa_s) < 0) 5886 return -1; 5887#endif /* CONFIG_DPP */ 5888 5889 if (wpa_supplicant_init_eapol(wpa_s) < 0) 5890 return -1; 5891 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); 5892 5893 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); 5894 if (wpa_s->ctrl_iface == NULL) { 5895 wpa_printf(MSG_ERROR, 5896 "Failed to initialize control interface '%s'.\n" 5897 "You may have another wpa_supplicant process " 5898 "already running or the file was\n" 5899 "left by an unclean termination of wpa_supplicant " 5900 "in which case you will need\n" 5901 "to manually remove this file before starting " 5902 "wpa_supplicant again.\n", 5903 wpa_s->conf->ctrl_interface); 5904 return -1; 5905 } 5906 5907 wpa_s->gas = gas_query_init(wpa_s); 5908 if (wpa_s->gas == NULL) { 5909 wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); 5910 return -1; 5911 } 5912 5913 if ((!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) || 5914 wpa_s->p2p_mgmt) && 5915 wpas_p2p_init(wpa_s->global, wpa_s) < 0) { 5916 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); 5917 return -1; 5918 } 5919 5920 if (wpa_bss_init(wpa_s) < 0) 5921 return -1; 5922 5923#ifdef CONFIG_PMKSA_CACHE_EXTERNAL 5924#ifdef CONFIG_MESH 5925 dl_list_init(&wpa_s->mesh_external_pmksa_cache); 5926#endif /* CONFIG_MESH */ 5927#endif /* CONFIG_PMKSA_CACHE_EXTERNAL */ 5928 5929 /* 5930 * Set Wake-on-WLAN triggers, if configured. 5931 * Note: We don't restore/remove the triggers on shutdown (it doesn't 5932 * have effect anyway when the interface is down). 5933 */ 5934 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0) 5935 return -1; 5936 5937#ifdef CONFIG_EAP_PROXY 5938{ 5939 size_t len; 5940 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1, 5941 wpa_s->imsi, &len); 5942 if (wpa_s->mnc_len > 0) { 5943 wpa_s->imsi[len] = '\0'; 5944 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)", 5945 wpa_s->imsi, wpa_s->mnc_len); 5946 } else { 5947 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available"); 5948 } 5949} 5950#endif /* CONFIG_EAP_PROXY */ 5951 5952 if (pcsc_reader_init(wpa_s) < 0) 5953 return -1; 5954 5955 if (wpas_init_ext_pw(wpa_s) < 0) 5956 return -1; 5957 5958 wpas_rrm_reset(wpa_s); 5959 5960 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans); 5961 5962#ifdef CONFIG_HS20 5963 hs20_init(wpa_s); 5964#endif /* CONFIG_HS20 */ 5965#ifdef CONFIG_MBO 5966 if (wpa_s->conf->oce) { 5967 if ((wpa_s->conf->oce & OCE_STA) && 5968 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OCE_STA)) 5969 wpa_s->enable_oce = OCE_STA; 5970 if ((wpa_s->conf->oce & OCE_STA_CFON) && 5971 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OCE_STA_CFON)) { 5972 /* TODO: Need to add STA-CFON support */ 5973 wpa_printf(MSG_ERROR, 5974 "OCE STA-CFON feature is not yet supported"); 5975 } 5976 } 5977 wpas_mbo_update_non_pref_chan(wpa_s, wpa_s->conf->non_pref_chan); 5978#endif /* CONFIG_MBO */ 5979 5980 wpa_supplicant_set_default_scan_ies(wpa_s); 5981 5982 return 0; 5983} 5984 5985 5986static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, 5987 int notify, int terminate) 5988{ 5989 struct wpa_global *global = wpa_s->global; 5990 struct wpa_supplicant *iface, *prev; 5991 5992 if (wpa_s == wpa_s->parent) 5993 wpas_p2p_group_remove(wpa_s, "*"); 5994 5995 iface = global->ifaces; 5996 while (iface) { 5997 if (iface->p2pdev == wpa_s) 5998 iface->p2pdev = iface->parent; 5999 if (iface == wpa_s || iface->parent != wpa_s) { 6000 iface = iface->next; 6001 continue; 6002 } 6003 wpa_printf(MSG_DEBUG, 6004 "Remove remaining child interface %s from parent %s", 6005 iface->ifname, wpa_s->ifname); 6006 prev = iface; 6007 iface = iface->next; 6008 wpa_supplicant_remove_iface(global, prev, terminate); 6009 } 6010 6011 wpa_s->disconnected = 1; 6012 if (wpa_s->drv_priv) { 6013 wpa_supplicant_deauthenticate(wpa_s, 6014 WLAN_REASON_DEAUTH_LEAVING); 6015 6016 wpa_drv_set_countermeasures(wpa_s, 0); 6017 wpa_clear_keys(wpa_s, NULL); 6018 } 6019 6020 wpa_supplicant_cleanup(wpa_s); 6021 wpas_p2p_deinit_iface(wpa_s); 6022 6023 wpas_ctrl_radio_work_flush(wpa_s); 6024 radio_remove_interface(wpa_s); 6025 6026#ifdef CONFIG_FST 6027 if (wpa_s->fst) { 6028 fst_detach(wpa_s->fst); 6029 wpa_s->fst = NULL; 6030 } 6031 if (wpa_s->received_mb_ies) { 6032 wpabuf_free(wpa_s->received_mb_ies); 6033 wpa_s->received_mb_ies = NULL; 6034 } 6035#endif /* CONFIG_FST */ 6036 6037 if (wpa_s->drv_priv) 6038 wpa_drv_deinit(wpa_s); 6039 6040 if (notify) 6041 wpas_notify_iface_removed(wpa_s); 6042 6043 if (terminate) 6044 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); 6045 6046 if (wpa_s->ctrl_iface) { 6047 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); 6048 wpa_s->ctrl_iface = NULL; 6049 } 6050 6051#ifdef CONFIG_MESH 6052 if (wpa_s->ifmsh) { 6053 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh); 6054 wpa_s->ifmsh = NULL; 6055 } 6056#endif /* CONFIG_MESH */ 6057 6058 if (wpa_s->conf != NULL) { 6059 wpa_config_free(wpa_s->conf); 6060 wpa_s->conf = NULL; 6061 } 6062 6063 os_free(wpa_s->ssids_from_scan_req); 6064 6065 os_free(wpa_s); 6066} 6067 6068 6069#ifdef CONFIG_MATCH_IFACE 6070 6071/** 6072 * wpa_supplicant_match_iface - Match an interface description to a name 6073 * @global: Pointer to global data from wpa_supplicant_init() 6074 * @ifname: Name of the interface to match 6075 * Returns: Pointer to the created interface description or %NULL on failure 6076 */ 6077struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global, 6078 const char *ifname) 6079{ 6080 int i; 6081 struct wpa_interface *iface, *miface; 6082 6083 for (i = 0; i < global->params.match_iface_count; i++) { 6084 miface = &global->params.match_ifaces[i]; 6085 if (!miface->ifname || 6086 fnmatch(miface->ifname, ifname, 0) == 0) { 6087 iface = os_zalloc(sizeof(*iface)); 6088 if (!iface) 6089 return NULL; 6090 *iface = *miface; 6091 if (!miface->ifname) 6092 iface->matched = WPA_IFACE_MATCHEDNULL; 6093 else 6094 iface->matched = WPA_IFACE_MATCHED; 6095 iface->ifname = ifname; 6096 return iface; 6097 } 6098 } 6099 6100 return NULL; 6101} 6102 6103 6104/** 6105 * wpa_supplicant_match_existing - Match existing interfaces 6106 * @global: Pointer to global data from wpa_supplicant_init() 6107 * Returns: 0 on success, -1 on failure 6108 */ 6109static int wpa_supplicant_match_existing(struct wpa_global *global) 6110{ 6111 struct if_nameindex *ifi, *ifp; 6112 struct wpa_supplicant *wpa_s; 6113 struct wpa_interface *iface; 6114 6115 ifp = if_nameindex(); 6116 if (!ifp) { 6117 wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno)); 6118 return -1; 6119 } 6120 6121 for (ifi = ifp; ifi->if_name; ifi++) { 6122 wpa_s = wpa_supplicant_get_iface(global, ifi->if_name); 6123 if (wpa_s) 6124 continue; 6125 iface = wpa_supplicant_match_iface(global, ifi->if_name); 6126 if (iface) { 6127 wpa_s = wpa_supplicant_add_iface(global, iface, NULL); 6128 os_free(iface); 6129 } 6130 } 6131 6132 if_freenameindex(ifp); 6133 return 0; 6134} 6135 6136#endif /* CONFIG_MATCH_IFACE */ 6137 6138 6139/** 6140 * wpa_supplicant_add_iface - Add a new network interface 6141 * @global: Pointer to global data from wpa_supplicant_init() 6142 * @iface: Interface configuration options 6143 * @parent: Parent interface or %NULL to assign new interface as parent 6144 * Returns: Pointer to the created interface or %NULL on failure 6145 * 6146 * This function is used to add new network interfaces for %wpa_supplicant. 6147 * This can be called before wpa_supplicant_run() to add interfaces before the 6148 * main event loop has been started. In addition, new interfaces can be added 6149 * dynamically while %wpa_supplicant is already running. This could happen, 6150 * e.g., when a hotplug network adapter is inserted. 6151 */ 6152struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, 6153 struct wpa_interface *iface, 6154 struct wpa_supplicant *parent) 6155{ 6156 struct wpa_supplicant *wpa_s; 6157 struct wpa_interface t_iface; 6158 struct wpa_ssid *ssid; 6159 6160 if (global == NULL || iface == NULL) 6161 return NULL; 6162 6163 wpa_s = wpa_supplicant_alloc(parent); 6164 if (wpa_s == NULL) 6165 return NULL; 6166 6167 wpa_s->global = global; 6168 6169 t_iface = *iface; 6170 if (global->params.override_driver) { 6171 wpa_printf(MSG_DEBUG, "Override interface parameter: driver " 6172 "('%s' -> '%s')", 6173 iface->driver, global->params.override_driver); 6174 t_iface.driver = global->params.override_driver; 6175 } 6176 if (global->params.override_ctrl_interface) { 6177 wpa_printf(MSG_DEBUG, "Override interface parameter: " 6178 "ctrl_interface ('%s' -> '%s')", 6179 iface->ctrl_interface, 6180 global->params.override_ctrl_interface); 6181 t_iface.ctrl_interface = 6182 global->params.override_ctrl_interface; 6183 } 6184 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { 6185 wpa_printf(MSG_DEBUG, "Failed to add interface %s", 6186 iface->ifname); 6187 wpa_supplicant_deinit_iface(wpa_s, 0, 0); 6188 return NULL; 6189 } 6190 6191 if (iface->p2p_mgmt == 0) { 6192 /* Notify the control interfaces about new iface */ 6193 if (wpas_notify_iface_added(wpa_s)) { 6194 wpa_supplicant_deinit_iface(wpa_s, 1, 0); 6195 return NULL; 6196 } 6197 6198 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) 6199 wpas_notify_network_added(wpa_s, ssid); 6200 } 6201 6202 wpa_s->next = global->ifaces; 6203 global->ifaces = wpa_s; 6204 6205 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); 6206 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 6207 6208#ifdef CONFIG_P2P 6209 if (wpa_s->global->p2p == NULL && 6210 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled && 6211 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 6212 wpas_p2p_add_p2pdev_interface( 6213 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { 6214 wpa_printf(MSG_INFO, 6215 "P2P: Failed to enable P2P Device interface"); 6216 /* Try to continue without. P2P will be disabled. */ 6217 } 6218#endif /* CONFIG_P2P */ 6219 6220 return wpa_s; 6221} 6222 6223 6224/** 6225 * wpa_supplicant_remove_iface - Remove a network interface 6226 * @global: Pointer to global data from wpa_supplicant_init() 6227 * @wpa_s: Pointer to the network interface to be removed 6228 * Returns: 0 if interface was removed, -1 if interface was not found 6229 * 6230 * This function can be used to dynamically remove network interfaces from 6231 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In 6232 * addition, this function is used to remove all remaining interfaces when 6233 * %wpa_supplicant is terminated. 6234 */ 6235int wpa_supplicant_remove_iface(struct wpa_global *global, 6236 struct wpa_supplicant *wpa_s, 6237 int terminate) 6238{ 6239 struct wpa_supplicant *prev; 6240#ifdef CONFIG_MESH 6241 unsigned int mesh_if_created = wpa_s->mesh_if_created; 6242 char *ifname = NULL; 6243 struct wpa_supplicant *parent = wpa_s->parent; 6244#endif /* CONFIG_MESH */ 6245 6246 /* Remove interface from the global list of interfaces */ 6247 prev = global->ifaces; 6248 if (prev == wpa_s) { 6249 global->ifaces = wpa_s->next; 6250 } else { 6251 while (prev && prev->next != wpa_s) 6252 prev = prev->next; 6253 if (prev == NULL) 6254 return -1; 6255 prev->next = wpa_s->next; 6256 } 6257 6258 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); 6259 6260#ifdef CONFIG_MESH 6261 if (mesh_if_created) { 6262 ifname = os_strdup(wpa_s->ifname); 6263 if (ifname == NULL) { 6264 wpa_dbg(wpa_s, MSG_ERROR, 6265 "mesh: Failed to malloc ifname"); 6266 return -1; 6267 } 6268 } 6269#endif /* CONFIG_MESH */ 6270 6271 if (global->p2p_group_formation == wpa_s) 6272 global->p2p_group_formation = NULL; 6273 if (global->p2p_invite_group == wpa_s) 6274 global->p2p_invite_group = NULL; 6275 wpa_supplicant_deinit_iface(wpa_s, 1, terminate); 6276 6277#ifdef CONFIG_MESH 6278 if (mesh_if_created) { 6279 wpa_drv_if_remove(parent, WPA_IF_MESH, ifname); 6280 os_free(ifname); 6281 } 6282#endif /* CONFIG_MESH */ 6283 6284 return 0; 6285} 6286 6287 6288/** 6289 * wpa_supplicant_get_eap_mode - Get the current EAP mode 6290 * @wpa_s: Pointer to the network interface 6291 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found 6292 */ 6293const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) 6294{ 6295 const char *eapol_method; 6296 6297 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && 6298 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 6299 return "NO-EAP"; 6300 } 6301 6302 eapol_method = eapol_sm_get_method_name(wpa_s->eapol); 6303 if (eapol_method == NULL) 6304 return "UNKNOWN-EAP"; 6305 6306 return eapol_method; 6307} 6308 6309 6310/** 6311 * wpa_supplicant_get_iface - Get a new network interface 6312 * @global: Pointer to global data from wpa_supplicant_init() 6313 * @ifname: Interface name 6314 * Returns: Pointer to the interface or %NULL if not found 6315 */ 6316struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, 6317 const char *ifname) 6318{ 6319 struct wpa_supplicant *wpa_s; 6320 6321 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { 6322 if (os_strcmp(wpa_s->ifname, ifname) == 0) 6323 return wpa_s; 6324 } 6325 return NULL; 6326} 6327 6328 6329#ifndef CONFIG_NO_WPA_MSG 6330static const char * wpa_supplicant_msg_ifname_cb(void *ctx) 6331{ 6332 struct wpa_supplicant *wpa_s = ctx; 6333 if (wpa_s == NULL) 6334 return NULL; 6335 return wpa_s->ifname; 6336} 6337#endif /* CONFIG_NO_WPA_MSG */ 6338 6339 6340#ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL 6341#define WPA_SUPPLICANT_CLEANUP_INTERVAL 10 6342#endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */ 6343 6344/* Periodic cleanup tasks */ 6345static void wpas_periodic(void *eloop_ctx, void *timeout_ctx) 6346{ 6347 struct wpa_global *global = eloop_ctx; 6348 struct wpa_supplicant *wpa_s; 6349 6350 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0, 6351 wpas_periodic, global, NULL); 6352 6353#ifdef CONFIG_P2P 6354 if (global->p2p) 6355 p2p_expire_peers(global->p2p); 6356#endif /* CONFIG_P2P */ 6357 6358 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { 6359 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age); 6360#ifdef CONFIG_AP 6361 ap_periodic(wpa_s); 6362#endif /* CONFIG_AP */ 6363 } 6364} 6365 6366 6367/** 6368 * wpa_supplicant_init - Initialize %wpa_supplicant 6369 * @params: Parameters for %wpa_supplicant 6370 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure 6371 * 6372 * This function is used to initialize %wpa_supplicant. After successful 6373 * initialization, the returned data pointer can be used to add and remove 6374 * network interfaces, and eventually, to deinitialize %wpa_supplicant. 6375 */ 6376struct wpa_global * wpa_supplicant_init(struct wpa_params *params) 6377{ 6378 struct wpa_global *global; 6379 int ret, i; 6380 6381 if (params == NULL) 6382 return NULL; 6383 6384#ifdef CONFIG_DRIVER_NDIS 6385 { 6386 void driver_ndis_init_ops(void); 6387 driver_ndis_init_ops(); 6388 } 6389#endif /* CONFIG_DRIVER_NDIS */ 6390 6391#ifndef CONFIG_NO_WPA_MSG 6392 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); 6393#endif /* CONFIG_NO_WPA_MSG */ 6394 6395 if (params->wpa_debug_file_path) 6396 wpa_debug_open_file(params->wpa_debug_file_path); 6397 else 6398 wpa_debug_setup_stdout(); 6399 if (params->wpa_debug_syslog) 6400 wpa_debug_open_syslog(); 6401 if (params->wpa_debug_tracing) { 6402 ret = wpa_debug_open_linux_tracing(); 6403 if (ret) { 6404 wpa_printf(MSG_ERROR, 6405 "Failed to enable trace logging"); 6406 return NULL; 6407 } 6408 } 6409 6410 ret = eap_register_methods(); 6411 if (ret) { 6412 wpa_printf(MSG_ERROR, "Failed to register EAP methods"); 6413 if (ret == -2) 6414 wpa_printf(MSG_ERROR, "Two or more EAP methods used " 6415 "the same EAP type."); 6416 return NULL; 6417 } 6418 6419 global = os_zalloc(sizeof(*global)); 6420 if (global == NULL) 6421 return NULL; 6422 dl_list_init(&global->p2p_srv_bonjour); 6423 dl_list_init(&global->p2p_srv_upnp); 6424 global->params.daemonize = params->daemonize; 6425 global->params.wait_for_monitor = params->wait_for_monitor; 6426 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; 6427 if (params->pid_file) 6428 global->params.pid_file = os_strdup(params->pid_file); 6429 if (params->ctrl_interface) 6430 global->params.ctrl_interface = 6431 os_strdup(params->ctrl_interface); 6432 if (params->ctrl_interface_group) 6433 global->params.ctrl_interface_group = 6434 os_strdup(params->ctrl_interface_group); 6435 if (params->override_driver) 6436 global->params.override_driver = 6437 os_strdup(params->override_driver); 6438 if (params->override_ctrl_interface) 6439 global->params.override_ctrl_interface = 6440 os_strdup(params->override_ctrl_interface); 6441#ifdef CONFIG_MATCH_IFACE 6442 global->params.match_iface_count = params->match_iface_count; 6443 if (params->match_iface_count) { 6444 global->params.match_ifaces = 6445 os_calloc(params->match_iface_count, 6446 sizeof(struct wpa_interface)); 6447 os_memcpy(global->params.match_ifaces, 6448 params->match_ifaces, 6449 params->match_iface_count * 6450 sizeof(struct wpa_interface)); 6451 } 6452#endif /* CONFIG_MATCH_IFACE */ 6453#ifdef CONFIG_P2P 6454 if (params->conf_p2p_dev) 6455 global->params.conf_p2p_dev = 6456 os_strdup(params->conf_p2p_dev); 6457#endif /* CONFIG_P2P */ 6458 wpa_debug_level = global->params.wpa_debug_level = 6459 params->wpa_debug_level; 6460 wpa_debug_show_keys = global->params.wpa_debug_show_keys = 6461 params->wpa_debug_show_keys; 6462 wpa_debug_timestamp = global->params.wpa_debug_timestamp = 6463 params->wpa_debug_timestamp; 6464 6465 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); 6466 6467 if (eloop_init()) { 6468 wpa_printf(MSG_ERROR, "Failed to initialize event loop"); 6469 wpa_supplicant_deinit(global); 6470 return NULL; 6471 } 6472 6473 random_init(params->entropy_file); 6474 6475 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); 6476 if (global->ctrl_iface == NULL) { 6477 wpa_supplicant_deinit(global); 6478 return NULL; 6479 } 6480 6481 if (wpas_notify_supplicant_initialized(global)) { 6482 wpa_supplicant_deinit(global); 6483 return NULL; 6484 } 6485 6486 for (i = 0; wpa_drivers[i]; i++) 6487 global->drv_count++; 6488 if (global->drv_count == 0) { 6489 wpa_printf(MSG_ERROR, "No drivers enabled"); 6490 wpa_supplicant_deinit(global); 6491 return NULL; 6492 } 6493 global->drv_priv = os_calloc(global->drv_count, sizeof(void *)); 6494 if (global->drv_priv == NULL) { 6495 wpa_supplicant_deinit(global); 6496 return NULL; 6497 } 6498 6499#ifdef CONFIG_WIFI_DISPLAY 6500 if (wifi_display_init(global) < 0) { 6501 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display"); 6502 wpa_supplicant_deinit(global); 6503 return NULL; 6504 } 6505#endif /* CONFIG_WIFI_DISPLAY */ 6506 6507 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0, 6508 wpas_periodic, global, NULL); 6509 6510 return global; 6511} 6512 6513 6514/** 6515 * wpa_supplicant_run - Run the %wpa_supplicant main event loop 6516 * @global: Pointer to global data from wpa_supplicant_init() 6517 * Returns: 0 after successful event loop run, -1 on failure 6518 * 6519 * This function starts the main event loop and continues running as long as 6520 * there are any remaining events. In most cases, this function is running as 6521 * long as the %wpa_supplicant process in still in use. 6522 */ 6523int wpa_supplicant_run(struct wpa_global *global) 6524{ 6525 struct wpa_supplicant *wpa_s; 6526 6527 if (global->params.daemonize && 6528 (wpa_supplicant_daemon(global->params.pid_file) || 6529 eloop_sock_requeue())) 6530 return -1; 6531 6532#ifdef CONFIG_MATCH_IFACE 6533 if (wpa_supplicant_match_existing(global)) 6534 return -1; 6535#endif 6536 6537 if (global->params.wait_for_monitor) { 6538 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) 6539 if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt) 6540 wpa_supplicant_ctrl_iface_wait( 6541 wpa_s->ctrl_iface); 6542 } 6543 6544 eloop_register_signal_terminate(wpa_supplicant_terminate, global); 6545 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); 6546 6547 eloop_run(); 6548 6549 return 0; 6550} 6551 6552 6553/** 6554 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant 6555 * @global: Pointer to global data from wpa_supplicant_init() 6556 * 6557 * This function is called to deinitialize %wpa_supplicant and to free all 6558 * allocated resources. Remaining network interfaces will also be removed. 6559 */ 6560void wpa_supplicant_deinit(struct wpa_global *global) 6561{ 6562 int i; 6563 6564 if (global == NULL) 6565 return; 6566 6567 eloop_cancel_timeout(wpas_periodic, global, NULL); 6568 6569#ifdef CONFIG_WIFI_DISPLAY 6570 wifi_display_deinit(global); 6571#endif /* CONFIG_WIFI_DISPLAY */ 6572 6573 while (global->ifaces) 6574 wpa_supplicant_remove_iface(global, global->ifaces, 1); 6575 6576 if (global->ctrl_iface) 6577 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); 6578 6579 wpas_notify_supplicant_deinitialized(global); 6580 6581 eap_peer_unregister_methods(); 6582#ifdef CONFIG_AP 6583 eap_server_unregister_methods(); 6584#endif /* CONFIG_AP */ 6585 6586 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { 6587 if (!global->drv_priv[i]) 6588 continue; 6589 wpa_drivers[i]->global_deinit(global->drv_priv[i]); 6590 } 6591 os_free(global->drv_priv); 6592 6593 random_deinit(); 6594 6595 eloop_destroy(); 6596 6597 if (global->params.pid_file) { 6598 os_daemonize_terminate(global->params.pid_file); 6599 os_free(global->params.pid_file); 6600 } 6601 os_free(global->params.ctrl_interface); 6602 os_free(global->params.ctrl_interface_group); 6603 os_free(global->params.override_driver); 6604 os_free(global->params.override_ctrl_interface); 6605#ifdef CONFIG_MATCH_IFACE 6606 os_free(global->params.match_ifaces); 6607#endif /* CONFIG_MATCH_IFACE */ 6608#ifdef CONFIG_P2P 6609 os_free(global->params.conf_p2p_dev); 6610#endif /* CONFIG_P2P */ 6611 6612 os_free(global->p2p_disallow_freq.range); 6613 os_free(global->p2p_go_avoid_freq.range); 6614 os_free(global->add_psk); 6615 6616 os_free(global); 6617 wpa_debug_close_syslog(); 6618 wpa_debug_close_file(); 6619 wpa_debug_close_linux_tracing(); 6620} 6621 6622 6623void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) 6624{ 6625 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && 6626 wpa_s->conf->country[0] && wpa_s->conf->country[1]) { 6627 char country[3]; 6628 country[0] = wpa_s->conf->country[0]; 6629 country[1] = wpa_s->conf->country[1]; 6630 country[2] = '\0'; 6631 if (wpa_drv_set_country(wpa_s, country) < 0) { 6632 wpa_printf(MSG_ERROR, "Failed to set country code " 6633 "'%s'", country); 6634 } 6635 } 6636 6637 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND) 6638 wpas_init_ext_pw(wpa_s); 6639 6640 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SCHED_SCAN_PLANS) 6641 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans); 6642 6643 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WOWLAN_TRIGGERS) { 6644 struct wpa_driver_capa capa; 6645 int res = wpa_drv_get_capa(wpa_s, &capa); 6646 6647 if (res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0) 6648 wpa_printf(MSG_ERROR, 6649 "Failed to update wowlan_triggers to '%s'", 6650 wpa_s->conf->wowlan_triggers); 6651 } 6652 6653 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DISABLE_BTM) 6654 wpa_supplicant_set_default_scan_ies(wpa_s); 6655 6656#ifdef CONFIG_WPS 6657 wpas_wps_update_config(wpa_s); 6658#endif /* CONFIG_WPS */ 6659 wpas_p2p_update_config(wpa_s); 6660 wpa_s->conf->changed_parameters = 0; 6661} 6662 6663 6664void add_freq(int *freqs, int *num_freqs, int freq) 6665{ 6666 int i; 6667 6668 for (i = 0; i < *num_freqs; i++) { 6669 if (freqs[i] == freq) 6670 return; 6671 } 6672 6673 freqs[*num_freqs] = freq; 6674 (*num_freqs)++; 6675} 6676 6677 6678static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) 6679{ 6680 struct wpa_bss *bss, *cbss; 6681 const int max_freqs = 10; 6682 int *freqs; 6683 int num_freqs = 0; 6684 6685 freqs = os_calloc(max_freqs + 1, sizeof(int)); 6686 if (freqs == NULL) 6687 return NULL; 6688 6689 cbss = wpa_s->current_bss; 6690 6691 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 6692 if (bss == cbss) 6693 continue; 6694 if (bss->ssid_len == cbss->ssid_len && 6695 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && 6696 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { 6697 add_freq(freqs, &num_freqs, bss->freq); 6698 if (num_freqs == max_freqs) 6699 break; 6700 } 6701 } 6702 6703 if (num_freqs == 0) { 6704 os_free(freqs); 6705 freqs = NULL; 6706 } 6707 6708 return freqs; 6709} 6710 6711 6712void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) 6713{ 6714 int timeout; 6715 int count; 6716 int *freqs = NULL; 6717 6718 wpas_connect_work_done(wpa_s); 6719 6720 /* 6721 * Remove possible authentication timeout since the connection failed. 6722 */ 6723 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); 6724 6725 /* 6726 * There is no point in blacklisting the AP if this event is 6727 * generated based on local request to disconnect. 6728 */ 6729 if (wpa_s->own_disconnect_req) { 6730 wpa_s->own_disconnect_req = 0; 6731 wpa_dbg(wpa_s, MSG_DEBUG, 6732 "Ignore connection failure due to local request to disconnect"); 6733 return; 6734 } 6735 if (wpa_s->disconnected) { 6736 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure " 6737 "indication since interface has been put into " 6738 "disconnected state"); 6739 return; 6740 } 6741 6742 /* 6743 * Add the failed BSSID into the blacklist and speed up next scan 6744 * attempt if there could be other APs that could accept association. 6745 * The current blacklist count indicates how many times we have tried 6746 * connecting to this AP and multiple attempts mean that other APs are 6747 * either not available or has already been tried, so that we can start 6748 * increasing the delay here to avoid constant scanning. 6749 */ 6750 count = wpa_blacklist_add(wpa_s, bssid); 6751 if (count == 1 && wpa_s->current_bss) { 6752 /* 6753 * This BSS was not in the blacklist before. If there is 6754 * another BSS available for the same ESS, we should try that 6755 * next. Otherwise, we may as well try this one once more 6756 * before allowing other, likely worse, ESSes to be considered. 6757 */ 6758 freqs = get_bss_freqs_in_ess(wpa_s); 6759 if (freqs) { 6760 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " 6761 "has been seen; try it next"); 6762 wpa_blacklist_add(wpa_s, bssid); 6763 /* 6764 * On the next scan, go through only the known channels 6765 * used in this ESS based on previous scans to speed up 6766 * common load balancing use case. 6767 */ 6768 os_free(wpa_s->next_scan_freqs); 6769 wpa_s->next_scan_freqs = freqs; 6770 } 6771 } 6772 6773 /* 6774 * Add previous failure count in case the temporary blacklist was 6775 * cleared due to no other BSSes being available. 6776 */ 6777 count += wpa_s->extra_blacklist_count; 6778 6779 if (count > 3 && wpa_s->current_ssid) { 6780 wpa_printf(MSG_DEBUG, "Continuous association failures - " 6781 "consider temporary network disabling"); 6782 wpas_auth_failed(wpa_s, "CONN_FAILED"); 6783 } 6784 6785 switch (count) { 6786 case 1: 6787 timeout = 100; 6788 break; 6789 case 2: 6790 timeout = 500; 6791 break; 6792 case 3: 6793 timeout = 1000; 6794 break; 6795 case 4: 6796 timeout = 5000; 6797 break; 6798 default: 6799 timeout = 10000; 6800 break; 6801 } 6802 6803 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d " 6804 "ms", count, timeout); 6805 6806 /* 6807 * TODO: if more than one possible AP is available in scan results, 6808 * could try the other ones before requesting a new scan. 6809 */ 6810 6811 /* speed up the connection attempt with normal scan */ 6812 wpa_s->normal_scans = 0; 6813 wpa_supplicant_req_scan(wpa_s, timeout / 1000, 6814 1000 * (timeout % 1000)); 6815} 6816 6817 6818#ifdef CONFIG_FILS 6819void fils_connection_failure(struct wpa_supplicant *wpa_s) 6820{ 6821 struct wpa_ssid *ssid = wpa_s->current_ssid; 6822 const u8 *realm, *username, *rrk; 6823 size_t realm_len, username_len, rrk_len; 6824 u16 next_seq_num; 6825 6826 if (!ssid || !ssid->eap.erp || !wpa_key_mgmt_fils(ssid->key_mgmt) || 6827 eapol_sm_get_erp_info(wpa_s->eapol, &ssid->eap, 6828 &username, &username_len, 6829 &realm, &realm_len, &next_seq_num, 6830 &rrk, &rrk_len) != 0 || 6831 !realm) 6832 return; 6833 6834 wpa_hexdump_ascii(MSG_DEBUG, 6835 "FILS: Store last connection failure realm", 6836 realm, realm_len); 6837 os_free(wpa_s->last_con_fail_realm); 6838 wpa_s->last_con_fail_realm = os_malloc(realm_len); 6839 if (wpa_s->last_con_fail_realm) { 6840 wpa_s->last_con_fail_realm_len = realm_len; 6841 os_memcpy(wpa_s->last_con_fail_realm, realm, realm_len); 6842 } 6843} 6844#endif /* CONFIG_FILS */ 6845 6846 6847int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) 6848{ 6849 return wpa_s->conf->ap_scan == 2 || 6850 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); 6851} 6852 6853 6854#if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW) 6855int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s, 6856 struct wpa_ssid *ssid, 6857 const char *field, 6858 const char *value) 6859{ 6860#ifdef IEEE8021X_EAPOL 6861 struct eap_peer_config *eap = &ssid->eap; 6862 6863 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field); 6864 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value", 6865 (const u8 *) value, os_strlen(value)); 6866 6867 switch (wpa_supplicant_ctrl_req_from_string(field)) { 6868 case WPA_CTRL_REQ_EAP_IDENTITY: 6869 os_free(eap->identity); 6870 eap->identity = (u8 *) os_strdup(value); 6871 eap->identity_len = os_strlen(value); 6872 eap->pending_req_identity = 0; 6873 if (ssid == wpa_s->current_ssid) 6874 wpa_s->reassociate = 1; 6875 break; 6876 case WPA_CTRL_REQ_EAP_PASSWORD: 6877 bin_clear_free(eap->password, eap->password_len); 6878 eap->password = (u8 *) os_strdup(value); 6879 eap->password_len = os_strlen(value); 6880 eap->pending_req_password = 0; 6881 if (ssid == wpa_s->current_ssid) 6882 wpa_s->reassociate = 1; 6883 break; 6884 case WPA_CTRL_REQ_EAP_NEW_PASSWORD: 6885 bin_clear_free(eap->new_password, eap->new_password_len); 6886 eap->new_password = (u8 *) os_strdup(value); 6887 eap->new_password_len = os_strlen(value); 6888 eap->pending_req_new_password = 0; 6889 if (ssid == wpa_s->current_ssid) 6890 wpa_s->reassociate = 1; 6891 break; 6892 case WPA_CTRL_REQ_EAP_PIN: 6893 str_clear_free(eap->pin); 6894 eap->pin = os_strdup(value); 6895 eap->pending_req_pin = 0; 6896 if (ssid == wpa_s->current_ssid) 6897 wpa_s->reassociate = 1; 6898 break; 6899 case WPA_CTRL_REQ_EAP_OTP: 6900 bin_clear_free(eap->otp, eap->otp_len); 6901 eap->otp = (u8 *) os_strdup(value); 6902 eap->otp_len = os_strlen(value); 6903 os_free(eap->pending_req_otp); 6904 eap->pending_req_otp = NULL; 6905 eap->pending_req_otp_len = 0; 6906 break; 6907 case WPA_CTRL_REQ_EAP_PASSPHRASE: 6908 str_clear_free(eap->private_key_passwd); 6909 eap->private_key_passwd = os_strdup(value); 6910 eap->pending_req_passphrase = 0; 6911 if (ssid == wpa_s->current_ssid) 6912 wpa_s->reassociate = 1; 6913 break; 6914 case WPA_CTRL_REQ_SIM: 6915 str_clear_free(eap->external_sim_resp); 6916 eap->external_sim_resp = os_strdup(value); 6917 eap->pending_req_sim = 0; 6918 break; 6919 case WPA_CTRL_REQ_PSK_PASSPHRASE: 6920 if (wpa_config_set(ssid, "psk", value, 0) < 0) 6921 return -1; 6922 ssid->mem_only_psk = 1; 6923 if (ssid->passphrase) 6924 wpa_config_update_psk(ssid); 6925 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning) 6926 wpa_supplicant_req_scan(wpa_s, 0, 0); 6927 break; 6928 case WPA_CTRL_REQ_EXT_CERT_CHECK: 6929 if (eap->pending_ext_cert_check != PENDING_CHECK) 6930 return -1; 6931 if (os_strcmp(value, "good") == 0) 6932 eap->pending_ext_cert_check = EXT_CERT_CHECK_GOOD; 6933 else if (os_strcmp(value, "bad") == 0) 6934 eap->pending_ext_cert_check = EXT_CERT_CHECK_BAD; 6935 else 6936 return -1; 6937 break; 6938 default: 6939 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field); 6940 return -1; 6941 } 6942 6943 return 0; 6944#else /* IEEE8021X_EAPOL */ 6945 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included"); 6946 return -1; 6947#endif /* IEEE8021X_EAPOL */ 6948} 6949#endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */ 6950 6951 6952int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) 6953{ 6954 int i; 6955 unsigned int drv_enc; 6956 6957 if (wpa_s->p2p_mgmt) 6958 return 1; /* no normal network profiles on p2p_mgmt interface */ 6959 6960 if (ssid == NULL) 6961 return 1; 6962 6963 if (ssid->disabled) 6964 return 1; 6965 6966 if (wpa_s->drv_capa_known) 6967 drv_enc = wpa_s->drv_enc; 6968 else 6969 drv_enc = (unsigned int) -1; 6970 6971 for (i = 0; i < NUM_WEP_KEYS; i++) { 6972 size_t len = ssid->wep_key_len[i]; 6973 if (len == 0) 6974 continue; 6975 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40)) 6976 continue; 6977 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104)) 6978 continue; 6979 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128)) 6980 continue; 6981 return 1; /* invalid WEP key */ 6982 } 6983 6984 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set && 6985 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk && 6986 !(wpa_key_mgmt_sae(ssid->key_mgmt) && ssid->sae_password) && 6987 !ssid->mem_only_psk) 6988 return 1; 6989 6990 return 0; 6991} 6992 6993 6994int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) 6995{ 6996#ifdef CONFIG_IEEE80211W 6997 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) { 6998 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL && 6999 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) { 7000 /* 7001 * Driver does not support BIP -- ignore pmf=1 default 7002 * since the connection with PMF would fail and the 7003 * configuration does not require PMF to be enabled. 7004 */ 7005 return NO_MGMT_FRAME_PROTECTION; 7006 } 7007 7008 if (ssid && 7009 (ssid->key_mgmt & 7010 ~(WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPS | 7011 WPA_KEY_MGMT_IEEE8021X_NO_WPA)) == 0) { 7012 /* 7013 * Do not use the default PMF value for non-RSN networks 7014 * since PMF is available only with RSN and pmf=2 7015 * configuration would otherwise prevent connections to 7016 * all open networks. 7017 */ 7018 return NO_MGMT_FRAME_PROTECTION; 7019 } 7020 7021 return wpa_s->conf->pmf; 7022 } 7023 7024 return ssid->ieee80211w; 7025#else /* CONFIG_IEEE80211W */ 7026 return NO_MGMT_FRAME_PROTECTION; 7027#endif /* CONFIG_IEEE80211W */ 7028} 7029 7030 7031int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s) 7032{ 7033 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P) 7034 return 1; 7035 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA) 7036 return 0; 7037 return -1; 7038} 7039 7040 7041void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason) 7042{ 7043 struct wpa_ssid *ssid = wpa_s->current_ssid; 7044 int dur; 7045 struct os_reltime now; 7046 7047 if (ssid == NULL) { 7048 wpa_printf(MSG_DEBUG, "Authentication failure but no known " 7049 "SSID block"); 7050 return; 7051 } 7052 7053 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS) 7054 return; 7055 7056 ssid->auth_failures++; 7057 7058#ifdef CONFIG_P2P 7059 if (ssid->p2p_group && 7060 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) { 7061 /* 7062 * Skip the wait time since there is a short timeout on the 7063 * connection to a P2P group. 7064 */ 7065 return; 7066 } 7067#endif /* CONFIG_P2P */ 7068 7069 if (ssid->auth_failures > 50) 7070 dur = 300; 7071 else if (ssid->auth_failures > 10) 7072 dur = 120; 7073 else if (ssid->auth_failures > 5) 7074 dur = 90; 7075 else if (ssid->auth_failures > 3) 7076 dur = 60; 7077 else if (ssid->auth_failures > 2) 7078 dur = 30; 7079 else if (ssid->auth_failures > 1) 7080 dur = 20; 7081 else 7082 dur = 10; 7083 7084 if (ssid->auth_failures > 1 && 7085 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) 7086 dur += os_random() % (ssid->auth_failures * 10); 7087 7088 os_get_reltime(&now); 7089 if (now.sec + dur <= ssid->disabled_until.sec) 7090 return; 7091 7092 ssid->disabled_until.sec = now.sec + dur; 7093 7094 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED 7095 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s", 7096 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len), 7097 ssid->auth_failures, dur, reason); 7098} 7099 7100 7101void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s, 7102 struct wpa_ssid *ssid, int clear_failures) 7103{ 7104 if (ssid == NULL) 7105 return; 7106 7107 if (ssid->disabled_until.sec) { 7108 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED 7109 "id=%d ssid=\"%s\"", 7110 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 7111 } 7112 ssid->disabled_until.sec = 0; 7113 ssid->disabled_until.usec = 0; 7114 if (clear_failures) 7115 ssid->auth_failures = 0; 7116} 7117 7118 7119int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid) 7120{ 7121 size_t i; 7122 7123 if (wpa_s->disallow_aps_bssid == NULL) 7124 return 0; 7125 7126 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) { 7127 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN, 7128 bssid, ETH_ALEN) == 0) 7129 return 1; 7130 } 7131 7132 return 0; 7133} 7134 7135 7136int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid, 7137 size_t ssid_len) 7138{ 7139 size_t i; 7140 7141 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL) 7142 return 0; 7143 7144 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) { 7145 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i]; 7146 if (ssid_len == s->ssid_len && 7147 os_memcmp(ssid, s->ssid, ssid_len) == 0) 7148 return 1; 7149 } 7150 7151 return 0; 7152} 7153 7154 7155/** 7156 * wpas_request_connection - Request a new connection 7157 * @wpa_s: Pointer to the network interface 7158 * 7159 * This function is used to request a new connection to be found. It will mark 7160 * the interface to allow reassociation and request a new scan to find a 7161 * suitable network to connect to. 7162 */ 7163void wpas_request_connection(struct wpa_supplicant *wpa_s) 7164{ 7165 wpa_s->normal_scans = 0; 7166 wpa_s->scan_req = NORMAL_SCAN_REQ; 7167 wpa_supplicant_reinit_autoscan(wpa_s); 7168 wpa_s->extra_blacklist_count = 0; 7169 wpa_s->disconnected = 0; 7170 wpa_s->reassociate = 1; 7171 wpa_s->last_owe_group = 0; 7172 7173 if (wpa_supplicant_fast_associate(wpa_s) != 1) 7174 wpa_supplicant_req_scan(wpa_s, 0, 0); 7175 else 7176 wpa_s->reattach = 0; 7177} 7178 7179 7180/** 7181 * wpas_request_disconnection - Request disconnection 7182 * @wpa_s: Pointer to the network interface 7183 * 7184 * This function is used to request disconnection from the currently connected 7185 * network. This will stop any ongoing scans and initiate deauthentication. 7186 */ 7187void wpas_request_disconnection(struct wpa_supplicant *wpa_s) 7188{ 7189#ifdef CONFIG_SME 7190 wpa_s->sme.prev_bssid_set = 0; 7191#endif /* CONFIG_SME */ 7192 wpa_s->reassociate = 0; 7193 wpa_s->disconnected = 1; 7194 wpa_supplicant_cancel_sched_scan(wpa_s); 7195 wpa_supplicant_cancel_scan(wpa_s); 7196 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 7197 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 7198 radio_remove_works(wpa_s, "connect", 0); 7199 radio_remove_works(wpa_s, "sme-connect", 0); 7200} 7201 7202 7203void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title, 7204 struct wpa_used_freq_data *freqs_data, 7205 unsigned int len) 7206{ 7207 unsigned int i; 7208 7209 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s", 7210 len, title); 7211 for (i = 0; i < len; i++) { 7212 struct wpa_used_freq_data *cur = &freqs_data[i]; 7213 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X", 7214 i, cur->freq, cur->flags); 7215 } 7216} 7217 7218 7219/* 7220 * Find the operating frequencies of any of the virtual interfaces that 7221 * are using the same radio as the current interface, and in addition, get 7222 * information about the interface types that are using the frequency. 7223 */ 7224int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s, 7225 struct wpa_used_freq_data *freqs_data, 7226 unsigned int len) 7227{ 7228 struct wpa_supplicant *ifs; 7229 u8 bssid[ETH_ALEN]; 7230 int freq; 7231 unsigned int idx = 0, i; 7232 7233 wpa_dbg(wpa_s, MSG_DEBUG, 7234 "Determining shared radio frequencies (max len %u)", len); 7235 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len); 7236 7237 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 7238 radio_list) { 7239 if (idx == len) 7240 break; 7241 7242 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0) 7243 continue; 7244 7245 if (ifs->current_ssid->mode == WPAS_MODE_AP || 7246 ifs->current_ssid->mode == WPAS_MODE_P2P_GO || 7247 ifs->current_ssid->mode == WPAS_MODE_MESH) 7248 freq = ifs->current_ssid->frequency; 7249 else if (wpa_drv_get_bssid(ifs, bssid) == 0) 7250 freq = ifs->assoc_freq; 7251 else 7252 continue; 7253 7254 /* Hold only distinct freqs */ 7255 for (i = 0; i < idx; i++) 7256 if (freqs_data[i].freq == freq) 7257 break; 7258 7259 if (i == idx) 7260 freqs_data[idx++].freq = freq; 7261 7262 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) { 7263 freqs_data[i].flags |= ifs->current_ssid->p2p_group ? 7264 WPA_FREQ_USED_BY_P2P_CLIENT : 7265 WPA_FREQ_USED_BY_INFRA_STATION; 7266 } 7267 } 7268 7269 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx); 7270 return idx; 7271} 7272 7273 7274/* 7275 * Find the operating frequencies of any of the virtual interfaces that 7276 * are using the same radio as the current interface. 7277 */ 7278int get_shared_radio_freqs(struct wpa_supplicant *wpa_s, 7279 int *freq_array, unsigned int len) 7280{ 7281 struct wpa_used_freq_data *freqs_data; 7282 int num, i; 7283 7284 os_memset(freq_array, 0, sizeof(int) * len); 7285 7286 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data)); 7287 if (!freqs_data) 7288 return -1; 7289 7290 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len); 7291 for (i = 0; i < num; i++) 7292 freq_array[i] = freqs_data[i].freq; 7293 7294 os_free(freqs_data); 7295 7296 return num; 7297} 7298 7299 7300struct wpa_supplicant * 7301wpas_vendor_elem(struct wpa_supplicant *wpa_s, enum wpa_vendor_elem_frame frame) 7302{ 7303 switch (frame) { 7304#ifdef CONFIG_P2P 7305 case VENDOR_ELEM_PROBE_REQ_P2P: 7306 case VENDOR_ELEM_PROBE_RESP_P2P: 7307 case VENDOR_ELEM_PROBE_RESP_P2P_GO: 7308 case VENDOR_ELEM_BEACON_P2P_GO: 7309 case VENDOR_ELEM_P2P_PD_REQ: 7310 case VENDOR_ELEM_P2P_PD_RESP: 7311 case VENDOR_ELEM_P2P_GO_NEG_REQ: 7312 case VENDOR_ELEM_P2P_GO_NEG_RESP: 7313 case VENDOR_ELEM_P2P_GO_NEG_CONF: 7314 case VENDOR_ELEM_P2P_INV_REQ: 7315 case VENDOR_ELEM_P2P_INV_RESP: 7316 case VENDOR_ELEM_P2P_ASSOC_REQ: 7317 case VENDOR_ELEM_P2P_ASSOC_RESP: 7318 return wpa_s->p2pdev; 7319#endif /* CONFIG_P2P */ 7320 default: 7321 return wpa_s; 7322 } 7323} 7324 7325 7326void wpas_vendor_elem_update(struct wpa_supplicant *wpa_s) 7327{ 7328 unsigned int i; 7329 char buf[30]; 7330 7331 wpa_printf(MSG_DEBUG, "Update vendor elements"); 7332 7333 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) { 7334 if (wpa_s->vendor_elem[i]) { 7335 int res; 7336 7337 res = os_snprintf(buf, sizeof(buf), "frame[%u]", i); 7338 if (!os_snprintf_error(sizeof(buf), res)) { 7339 wpa_hexdump_buf(MSG_DEBUG, buf, 7340 wpa_s->vendor_elem[i]); 7341 } 7342 } 7343 } 7344 7345#ifdef CONFIG_P2P 7346 if (wpa_s->parent == wpa_s && 7347 wpa_s->global->p2p && 7348 !wpa_s->global->p2p_disabled) 7349 p2p_set_vendor_elems(wpa_s->global->p2p, wpa_s->vendor_elem); 7350#endif /* CONFIG_P2P */ 7351} 7352 7353 7354int wpas_vendor_elem_remove(struct wpa_supplicant *wpa_s, int frame, 7355 const u8 *elem, size_t len) 7356{ 7357 u8 *ie, *end; 7358 7359 ie = wpabuf_mhead_u8(wpa_s->vendor_elem[frame]); 7360 end = ie + wpabuf_len(wpa_s->vendor_elem[frame]); 7361 7362 for (; ie + 1 < end; ie += 2 + ie[1]) { 7363 if (ie + len > end) 7364 break; 7365 if (os_memcmp(ie, elem, len) != 0) 7366 continue; 7367 7368 if (wpabuf_len(wpa_s->vendor_elem[frame]) == len) { 7369 wpabuf_free(wpa_s->vendor_elem[frame]); 7370 wpa_s->vendor_elem[frame] = NULL; 7371 } else { 7372 os_memmove(ie, ie + len, end - (ie + len)); 7373 wpa_s->vendor_elem[frame]->used -= len; 7374 } 7375 wpas_vendor_elem_update(wpa_s); 7376 return 0; 7377 } 7378 7379 return -1; 7380} 7381 7382 7383struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes, 7384 u16 num_modes, enum hostapd_hw_mode mode) 7385{ 7386 u16 i; 7387 7388 for (i = 0; i < num_modes; i++) { 7389 if (modes[i].mode == mode) 7390 return &modes[i]; 7391 } 7392 7393 return NULL; 7394} 7395 7396 7397static struct 7398wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s, 7399 const u8 *bssid) 7400{ 7401 struct wpa_bss_tmp_disallowed *bss; 7402 7403 dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed, 7404 struct wpa_bss_tmp_disallowed, list) { 7405 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0) 7406 return bss; 7407 } 7408 7409 return NULL; 7410} 7411 7412 7413static int wpa_set_driver_tmp_disallow_list(struct wpa_supplicant *wpa_s) 7414{ 7415 struct wpa_bss_tmp_disallowed *tmp; 7416 unsigned int num_bssid = 0; 7417 u8 *bssids; 7418 int ret; 7419 7420 bssids = os_malloc(dl_list_len(&wpa_s->bss_tmp_disallowed) * ETH_ALEN); 7421 if (!bssids) 7422 return -1; 7423 dl_list_for_each(tmp, &wpa_s->bss_tmp_disallowed, 7424 struct wpa_bss_tmp_disallowed, list) { 7425 os_memcpy(&bssids[num_bssid * ETH_ALEN], tmp->bssid, 7426 ETH_ALEN); 7427 num_bssid++; 7428 } 7429 ret = wpa_drv_set_bssid_blacklist(wpa_s, num_bssid, bssids); 7430 os_free(bssids); 7431 return ret; 7432} 7433 7434 7435static void wpa_bss_tmp_disallow_timeout(void *eloop_ctx, void *timeout_ctx) 7436{ 7437 struct wpa_supplicant *wpa_s = eloop_ctx; 7438 struct wpa_bss_tmp_disallowed *tmp, *bss = timeout_ctx; 7439 7440 /* Make sure the bss is not already freed */ 7441 dl_list_for_each(tmp, &wpa_s->bss_tmp_disallowed, 7442 struct wpa_bss_tmp_disallowed, list) { 7443 if (bss == tmp) { 7444 dl_list_del(&tmp->list); 7445 os_free(tmp); 7446 wpa_set_driver_tmp_disallow_list(wpa_s); 7447 break; 7448 } 7449 } 7450} 7451 7452 7453void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid, 7454 unsigned int sec, int rssi_threshold) 7455{ 7456 struct wpa_bss_tmp_disallowed *bss; 7457 7458 bss = wpas_get_disallowed_bss(wpa_s, bssid); 7459 if (bss) { 7460 eloop_cancel_timeout(wpa_bss_tmp_disallow_timeout, wpa_s, bss); 7461 goto finish; 7462 } 7463 7464 bss = os_malloc(sizeof(*bss)); 7465 if (!bss) { 7466 wpa_printf(MSG_DEBUG, 7467 "Failed to allocate memory for temp disallow BSS"); 7468 return; 7469 } 7470 7471 os_memcpy(bss->bssid, bssid, ETH_ALEN); 7472 dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list); 7473 wpa_set_driver_tmp_disallow_list(wpa_s); 7474 7475finish: 7476 bss->rssi_threshold = rssi_threshold; 7477 eloop_register_timeout(sec, 0, wpa_bss_tmp_disallow_timeout, 7478 wpa_s, bss); 7479} 7480 7481 7482int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s, 7483 struct wpa_bss *bss) 7484{ 7485 struct wpa_bss_tmp_disallowed *disallowed = NULL, *tmp, *prev; 7486 7487 dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed, 7488 struct wpa_bss_tmp_disallowed, list) { 7489 if (os_memcmp(bss->bssid, tmp->bssid, ETH_ALEN) == 0) { 7490 disallowed = tmp; 7491 break; 7492 } 7493 } 7494 if (!disallowed) 7495 return 0; 7496 7497 if (disallowed->rssi_threshold != 0 && 7498 bss->level > disallowed->rssi_threshold) 7499 return 0; 7500 7501 return 1; 7502} 7503 7504 7505int wpas_enable_mac_addr_randomization(struct wpa_supplicant *wpa_s, 7506 unsigned int type, const u8 *addr, 7507 const u8 *mask) 7508{ 7509 if ((addr && !mask) || (!addr && mask)) { 7510 wpa_printf(MSG_INFO, 7511 "MAC_ADDR_RAND_SCAN invalid addr/mask combination"); 7512 return -1; 7513 } 7514 7515 if (addr && mask && (!(mask[0] & 0x01) || (addr[0] & 0x01))) { 7516 wpa_printf(MSG_INFO, 7517 "MAC_ADDR_RAND_SCAN cannot allow multicast address"); 7518 return -1; 7519 } 7520 7521 if (type & MAC_ADDR_RAND_SCAN) { 7522 if (wpas_mac_addr_rand_scan_set(wpa_s, MAC_ADDR_RAND_SCAN, 7523 addr, mask)) 7524 return -1; 7525 } 7526 7527 if (type & MAC_ADDR_RAND_SCHED_SCAN) { 7528 if (wpas_mac_addr_rand_scan_set(wpa_s, MAC_ADDR_RAND_SCHED_SCAN, 7529 addr, mask)) 7530 return -1; 7531 7532 if (wpa_s->sched_scanning && !wpa_s->pno) 7533 wpas_scan_restart_sched_scan(wpa_s); 7534 } 7535 7536 if (type & MAC_ADDR_RAND_PNO) { 7537 if (wpas_mac_addr_rand_scan_set(wpa_s, MAC_ADDR_RAND_PNO, 7538 addr, mask)) 7539 return -1; 7540 7541 if (wpa_s->pno) { 7542 wpas_stop_pno(wpa_s); 7543 wpas_start_pno(wpa_s); 7544 } 7545 } 7546 7547 return 0; 7548} 7549 7550 7551int wpas_disable_mac_addr_randomization(struct wpa_supplicant *wpa_s, 7552 unsigned int type) 7553{ 7554 wpas_mac_addr_rand_scan_clear(wpa_s, type); 7555 if (wpa_s->pno) { 7556 if (type & MAC_ADDR_RAND_PNO) { 7557 wpas_stop_pno(wpa_s); 7558 wpas_start_pno(wpa_s); 7559 } 7560 } else if (wpa_s->sched_scanning && (type & MAC_ADDR_RAND_SCHED_SCAN)) { 7561 wpas_scan_restart_sched_scan(wpa_s); 7562 } 7563 7564 return 0; 7565} 7566