1 /* 2 * WPA Supplicant - Glue code to setup EAPOL and RSN modules 3 * Copyright (c) 2003-2015, 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 9 #include "includes.h" 10 11 #include "common.h" 12 #include "eapol_supp/eapol_supp_sm.h" 13 #include "eap_peer/eap.h" 14 #include "rsn_supp/wpa.h" 15 #include "eloop.h" 16 #include "config.h" 17 #include "l2_packet/l2_packet.h" 18 #include "common/wpa_common.h" 19 #include "common/ptksa_cache.h" 20 #include "wpa_supplicant_i.h" 21 #include "driver_i.h" 22 #include "rsn_supp/pmksa_cache.h" 23 #include "sme.h" 24 #include "common/ieee802_11_defs.h" 25 #include "common/wpa_ctrl.h" 26 #include "wpas_glue.h" 27 #include "wps_supplicant.h" 28 #include "bss.h" 29 #include "scan.h" 30 #include "notify.h" 31 #include "wpas_kay.h" 32 33 34 #ifndef CONFIG_NO_CONFIG_BLOBS 35 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) 36 static void wpa_supplicant_set_config_blob(void *ctx, 37 struct wpa_config_blob *blob) 38 { 39 struct wpa_supplicant *wpa_s = ctx; 40 wpa_config_set_blob(wpa_s->conf, blob); 41 if (wpa_s->conf->update_config) { 42 int ret = wpa_config_write(wpa_s->confname, wpa_s->conf); 43 if (ret) { 44 wpa_printf(MSG_DEBUG, "Failed to update config after " 45 "blob set"); 46 } 47 } 48 } 49 50 51 static const struct wpa_config_blob * 52 wpa_supplicant_get_config_blob(void *ctx, const char *name) 53 { 54 struct wpa_supplicant *wpa_s = ctx; 55 return wpa_config_get_blob(wpa_s->conf, name); 56 } 57 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */ 58 #endif /* CONFIG_NO_CONFIG_BLOBS */ 59 60 61 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) 62 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type, 63 const void *data, u16 data_len, 64 size_t *msg_len, void **data_pos) 65 { 66 struct ieee802_1x_hdr *hdr; 67 68 *msg_len = sizeof(*hdr) + data_len; 69 hdr = os_malloc(*msg_len); 70 if (hdr == NULL) 71 return NULL; 72 73 hdr->version = wpa_s->conf->eapol_version; 74 hdr->type = type; 75 hdr->length = host_to_be16(data_len); 76 77 if (data) 78 os_memcpy(hdr + 1, data, data_len); 79 else 80 os_memset(hdr + 1, 0, data_len); 81 82 if (data_pos) 83 *data_pos = hdr + 1; 84 85 return (u8 *) hdr; 86 } 87 88 89 /** 90 * wpa_ether_send - Send Ethernet frame 91 * @wpa_s: Pointer to wpa_supplicant data 92 * @dest: Destination MAC address 93 * @proto: Ethertype in host byte order 94 * @buf: Frame payload starting from IEEE 802.1X header 95 * @len: Frame payload length 96 * Returns: >=0 on success, <0 on failure 97 */ 98 int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest, 99 u16 proto, const u8 *buf, size_t len) 100 { 101 #ifdef CONFIG_TESTING_OPTIONS 102 if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) { 103 size_t hex_len = 2 * len + 1; 104 char *hex = os_malloc(hex_len); 105 106 if (hex == NULL) 107 return -1; 108 wpa_snprintf_hex(hex, hex_len, buf, len); 109 wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s", 110 MAC2STR(dest), hex); 111 os_free(hex); 112 return 0; 113 } 114 #endif /* CONFIG_TESTING_OPTIONS */ 115 116 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_CONTROL_PORT) { 117 int encrypt = wpa_s->wpa && 118 wpa_sm_has_ptk_installed(wpa_s->wpa); 119 120 return wpa_drv_tx_control_port(wpa_s, dest, proto, buf, len, 121 !encrypt); 122 } 123 124 if (wpa_s->l2) { 125 return l2_packet_send(wpa_s->l2, dest, proto, buf, len); 126 } 127 128 return -1; 129 } 130 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */ 131 132 133 #ifdef IEEE8021X_EAPOL 134 135 /** 136 * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator 137 * @ctx: Pointer to wpa_supplicant data (wpa_s) 138 * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*) 139 * @buf: EAPOL payload (after IEEE 802.1X header) 140 * @len: EAPOL payload length 141 * Returns: >=0 on success, <0 on failure 142 * 143 * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame 144 * to the current Authenticator. 145 */ 146 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf, 147 size_t len) 148 { 149 struct wpa_supplicant *wpa_s = ctx; 150 u8 *msg, *dst, bssid[ETH_ALEN]; 151 size_t msglen; 152 int res; 153 154 /* TODO: could add l2_packet_sendmsg that allows fragments to avoid 155 * extra copy here */ 156 157 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || 158 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || 159 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || 160 wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { 161 /* Current SSID is not using IEEE 802.1X/EAP, so drop possible 162 * EAPOL frames (mainly, EAPOL-Start) from EAPOL state 163 * machines. */ 164 wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X " 165 "mode (type=%d len=%lu)", type, 166 (unsigned long) len); 167 return -1; 168 } 169 170 if (pmksa_cache_get_current(wpa_s->wpa) && 171 type == IEEE802_1X_TYPE_EAPOL_START) { 172 /* 173 * We were trying to use PMKSA caching and sending EAPOL-Start 174 * would abort that and trigger full EAPOL authentication. 175 * However, we've already waited for the AP/Authenticator to 176 * start 4-way handshake or EAP authentication, and apparently 177 * it has not done so since the startWhen timer has reached zero 178 * to get the state machine sending EAPOL-Start. This is not 179 * really supposed to happen, but an interoperability issue with 180 * a deployed AP has been identified where the connection fails 181 * due to that AP failing to operate correctly if PMKID is 182 * included in the Association Request frame. To work around 183 * this, assume PMKSA caching failed and try to initiate full 184 * EAP authentication. 185 */ 186 if (!wpa_s->current_ssid || 187 wpa_s->current_ssid->eap_workaround) { 188 wpa_printf(MSG_DEBUG, 189 "RSN: Timeout on waiting for the AP to initiate 4-way handshake for PMKSA caching or EAP authentication - try to force it to start EAP authentication"); 190 } else { 191 wpa_printf(MSG_DEBUG, 192 "RSN: PMKSA caching - do not send EAPOL-Start"); 193 return -1; 194 } 195 } 196 197 if (is_zero_ether_addr(wpa_s->bssid)) { 198 wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an " 199 "EAPOL frame"); 200 if (wpa_drv_get_bssid(wpa_s, bssid) == 0 && 201 !is_zero_ether_addr(bssid)) { 202 dst = bssid; 203 wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR 204 " from the driver as the EAPOL destination", 205 MAC2STR(dst)); 206 } else { 207 dst = wpa_s->last_eapol_src; 208 wpa_printf(MSG_DEBUG, "Using the source address of the" 209 " last received EAPOL frame " MACSTR " as " 210 "the EAPOL destination", 211 MAC2STR(dst)); 212 } 213 } else { 214 /* BSSID was already set (from (Re)Assoc event, so use it as 215 * the EAPOL destination. */ 216 dst = wpa_s->bssid; 217 } 218 219 msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL); 220 if (msg == NULL) 221 return -1; 222 223 wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst)); 224 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen); 225 res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen); 226 os_free(msg); 227 return res; 228 } 229 230 231 #ifdef CONFIG_WEP 232 /** 233 * wpa_eapol_set_wep_key - set WEP key for the driver 234 * @ctx: Pointer to wpa_supplicant data (wpa_s) 235 * @unicast: 1 = individual unicast key, 0 = broadcast key 236 * @keyidx: WEP key index (0..3) 237 * @key: Pointer to key data 238 * @keylen: Key length in bytes 239 * Returns: 0 on success or < 0 on error. 240 */ 241 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx, 242 const u8 *key, size_t keylen) 243 { 244 struct wpa_supplicant *wpa_s = ctx; 245 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 246 int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 : 247 WPA_CIPHER_WEP104; 248 if (unicast) 249 wpa_s->pairwise_cipher = cipher; 250 else 251 wpa_s->group_cipher = cipher; 252 } 253 return wpa_drv_set_key(wpa_s, -1, WPA_ALG_WEP, 254 unicast ? wpa_s->bssid : NULL, 255 keyidx, unicast, NULL, 0, key, keylen, 256 unicast ? KEY_FLAG_PAIRWISE_RX_TX : 257 KEY_FLAG_GROUP_RX_TX_DEFAULT); 258 } 259 #endif /* CONFIG_WEP */ 260 261 262 static void wpa_supplicant_aborted_cached(void *ctx) 263 { 264 struct wpa_supplicant *wpa_s = ctx; 265 wpa_sm_aborted_cached(wpa_s->wpa); 266 } 267 268 269 static const char * result_str(enum eapol_supp_result result) 270 { 271 switch (result) { 272 case EAPOL_SUPP_RESULT_FAILURE: 273 return "FAILURE"; 274 case EAPOL_SUPP_RESULT_SUCCESS: 275 return "SUCCESS"; 276 case EAPOL_SUPP_RESULT_EXPECTED_FAILURE: 277 return "EXPECTED_FAILURE"; 278 } 279 return "?"; 280 } 281 282 283 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, 284 enum eapol_supp_result result, 285 void *ctx) 286 { 287 struct wpa_supplicant *wpa_s = ctx; 288 int res, pmk_len; 289 u8 pmk[PMK_LEN_MAX]; 290 291 wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s", 292 result_str(result)); 293 294 if (wpas_wps_eapol_cb(wpa_s) > 0) 295 return; 296 297 wpa_s->eap_expected_failure = result == 298 EAPOL_SUPP_RESULT_EXPECTED_FAILURE; 299 300 if (result != EAPOL_SUPP_RESULT_SUCCESS) { 301 int timeout = 2; 302 /* 303 * Make sure we do not get stuck here waiting for long EAPOL 304 * timeout if the AP does not disconnect in case of 305 * authentication failure. 306 */ 307 if (wpa_s->eapol_failed) { 308 wpa_printf(MSG_DEBUG, 309 "EAPOL authentication failed again and AP did not disconnect us"); 310 timeout = 0; 311 } 312 wpa_s->eapol_failed = 1; 313 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); 314 } else { 315 wpa_s->eapol_failed = 0; 316 ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src); 317 } 318 319 if (result != EAPOL_SUPP_RESULT_SUCCESS || 320 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X)) 321 return; 322 323 if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) 324 return; 325 326 wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way " 327 "handshake"); 328 329 if (wpa_key_mgmt_sha384(wpa_s->key_mgmt)) 330 pmk_len = PMK_LEN_SUITE_B_192; 331 else 332 pmk_len = PMK_LEN; 333 334 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) { 335 #ifdef CONFIG_IEEE80211R 336 u8 buf[2 * PMK_LEN]; 337 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for " 338 "driver-based 4-way hs and FT"); 339 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN); 340 if (res == 0) { 341 os_memcpy(pmk, buf + PMK_LEN, PMK_LEN); 342 os_memset(buf, 0, sizeof(buf)); 343 } 344 #else /* CONFIG_IEEE80211R */ 345 res = -1; 346 #endif /* CONFIG_IEEE80211R */ 347 } else { 348 res = eapol_sm_get_key(eapol, pmk, pmk_len); 349 if (res) { 350 /* 351 * EAP-LEAP is an exception from other EAP methods: it 352 * uses only 16-byte PMK. 353 */ 354 res = eapol_sm_get_key(eapol, pmk, 16); 355 pmk_len = 16; 356 } 357 } 358 359 if (res) { 360 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state " 361 "machines"); 362 return; 363 } 364 365 wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way " 366 "handshake", pmk, pmk_len); 367 368 if (wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, NULL, 0, pmk, 369 pmk_len, KEY_FLAG_PMK)) { 370 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver"); 371 } 372 373 wpa_supplicant_cancel_scan(wpa_s); 374 wpa_supplicant_cancel_auth_timeout(wpa_s); 375 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 376 377 } 378 379 380 static void wpa_supplicant_notify_eapol_done(void *ctx) 381 { 382 struct wpa_supplicant *wpa_s = ctx; 383 wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete"); 384 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 385 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE); 386 } else { 387 wpa_supplicant_cancel_auth_timeout(wpa_s); 388 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 389 } 390 } 391 392 #endif /* IEEE8021X_EAPOL */ 393 394 395 #ifndef CONFIG_NO_WPA 396 397 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s) 398 { 399 int ret = 0; 400 struct wpa_bss *curr = NULL, *bss; 401 struct wpa_ssid *ssid = wpa_s->current_ssid; 402 const u8 *ie; 403 404 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 405 if (!ether_addr_equal(bss->bssid, wpa_s->bssid)) 406 continue; 407 if (ssid == NULL || 408 ((bss->ssid_len == ssid->ssid_len && 409 os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) || 410 ssid->ssid_len == 0)) { 411 curr = bss; 412 break; 413 } 414 #ifdef CONFIG_OWE 415 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_OWE) && 416 (bss->flags & WPA_BSS_OWE_TRANSITION)) { 417 curr = bss; 418 break; 419 } 420 #endif /* CONFIG_OWE */ 421 } 422 423 if (curr) { 424 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE); 425 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) 426 ret = -1; 427 428 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN); 429 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) 430 ret = -1; 431 432 ie = wpa_bss_get_ie(curr, WLAN_EID_RSNX); 433 if (wpa_sm_set_ap_rsnxe(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) 434 ret = -1; 435 } else { 436 ret = -1; 437 } 438 439 return ret; 440 } 441 442 443 static int wpa_supplicant_get_beacon_ie(void *ctx) 444 { 445 struct wpa_supplicant *wpa_s = ctx; 446 if (wpa_get_beacon_ie(wpa_s) == 0) { 447 return 0; 448 } 449 450 /* No WPA/RSN IE found in the cached scan results. Try to get updated 451 * scan results from the driver. */ 452 if (wpa_supplicant_update_scan_results(wpa_s, wpa_s->bssid) < 0) 453 return -1; 454 455 return wpa_get_beacon_ie(wpa_s); 456 } 457 458 459 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type, 460 const void *data, u16 data_len, 461 size_t *msg_len, void **data_pos) 462 { 463 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos); 464 } 465 466 467 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto, 468 const u8 *buf, size_t len) 469 { 470 return wpa_ether_send(wpa_s, dest, proto, buf, len); 471 } 472 473 474 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) 475 { 476 wpa_supplicant_cancel_auth_timeout(wpa_s); 477 } 478 479 480 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state) 481 { 482 wpa_supplicant_set_state(wpa_s, state); 483 } 484 485 486 /** 487 * wpa_supplicant_get_state - Get the connection state 488 * @wpa_s: Pointer to wpa_supplicant data 489 * Returns: The current connection state (WPA_*) 490 */ 491 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s) 492 { 493 return wpa_s->wpa_state; 494 } 495 496 497 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s) 498 { 499 return wpa_supplicant_get_state(wpa_s); 500 } 501 502 503 static void _wpa_supplicant_deauthenticate(void *wpa_s, u16 reason_code) 504 { 505 wpa_supplicant_deauthenticate(wpa_s, reason_code); 506 /* Schedule a scan to make sure we continue looking for networks */ 507 wpa_supplicant_req_scan(wpa_s, 5, 0); 508 } 509 510 511 static void _wpa_supplicant_reconnect(void *wpa_s) 512 { 513 wpa_supplicant_reconnect(wpa_s); 514 } 515 516 517 static void * wpa_supplicant_get_network_ctx(void *wpa_s) 518 { 519 return wpa_supplicant_get_ssid(wpa_s); 520 } 521 522 523 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid) 524 { 525 struct wpa_supplicant *wpa_s = ctx; 526 return wpa_drv_get_bssid(wpa_s, bssid); 527 } 528 529 530 static int wpa_supplicant_set_key(void *_wpa_s, int link_id, enum wpa_alg alg, 531 const u8 *addr, int key_idx, int set_tx, 532 const u8 *seq, size_t seq_len, 533 const u8 *key, size_t key_len, 534 enum key_flag key_flag) 535 { 536 struct wpa_supplicant *wpa_s = _wpa_s; 537 int ret; 538 539 if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) { 540 /* Clear the MIC error counter when setting a new PTK. */ 541 wpa_s->mic_errors_seen = 0; 542 } 543 #ifdef CONFIG_TESTING_GET_GTK 544 if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) && 545 alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) { 546 os_memcpy(wpa_s->last_gtk, key, key_len); 547 wpa_s->last_gtk_len = key_len; 548 } 549 #endif /* CONFIG_TESTING_GET_GTK */ 550 #ifdef CONFIG_TESTING_OPTIONS 551 if (addr && !is_broadcast_ether_addr(addr) && 552 !(key_flag & KEY_FLAG_MODIFY)) { 553 wpa_s->last_tk_alg = alg; 554 os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN); 555 wpa_s->last_tk_key_idx = key_idx; 556 if (key) 557 os_memcpy(wpa_s->last_tk, key, key_len); 558 wpa_s->last_tk_len = key_len; 559 } 560 #endif /* CONFIG_TESTING_OPTIONS */ 561 562 ret = wpa_drv_set_key(wpa_s, link_id, alg, addr, key_idx, set_tx, seq, 563 seq_len, key, key_len, key_flag); 564 if (ret == 0 && (key_idx == 6 || key_idx == 7) && 565 alg != WPA_ALG_NONE && key_len > 0) 566 wpa_s->bigtk_set = true; 567 568 return ret; 569 } 570 571 572 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr, 573 int protection_type, 574 int key_type) 575 { 576 return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type, 577 key_type); 578 } 579 580 581 static struct wpa_ssid * wpas_get_network_ctx(struct wpa_supplicant *wpa_s, 582 void *network_ctx) 583 { 584 struct wpa_ssid *ssid; 585 586 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 587 if (network_ctx == ssid) 588 return ssid; 589 } 590 591 return NULL; 592 } 593 594 595 static int wpa_supplicant_add_pmkid(void *_wpa_s, void *network_ctx, 596 const u8 *bssid, const u8 *pmkid, 597 const u8 *fils_cache_id, 598 const u8 *pmk, size_t pmk_len, 599 u32 pmk_lifetime, u8 pmk_reauth_threshold, 600 int akmp) 601 { 602 struct wpa_supplicant *wpa_s = _wpa_s; 603 struct wpa_ssid *ssid; 604 struct wpa_pmkid_params params; 605 606 os_memset(¶ms, 0, sizeof(params)); 607 ssid = wpas_get_network_ctx(wpa_s, network_ctx); 608 if (ssid) { 609 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_ADDED MACSTR " %d", 610 MAC2STR(bssid), ssid->id); 611 if ((akmp == WPA_KEY_MGMT_FT_IEEE8021X || 612 akmp == WPA_KEY_MGMT_FT_IEEE8021X_SHA384) && 613 !ssid->ft_eap_pmksa_caching) { 614 /* Since we will not be using PMKSA caching for FT-EAP 615 * within wpa_supplicant to avoid known interop issues 616 * with APs, do not add this PMKID to the driver either 617 * so that we won't be hitting those interop issues 618 * with driver-based RSNE generation. */ 619 wpa_printf(MSG_DEBUG, 620 "FT: Do not add PMKID entry to the driver since FT-EAP PMKSA caching is not enabled in configuration"); 621 return 0; 622 } 623 } 624 if (ssid && fils_cache_id) { 625 params.ssid = ssid->ssid; 626 params.ssid_len = ssid->ssid_len; 627 params.fils_cache_id = fils_cache_id; 628 } else { 629 params.bssid = bssid; 630 } 631 632 params.pmkid = pmkid; 633 params.pmk = pmk; 634 params.pmk_len = pmk_len; 635 params.pmk_lifetime = pmk_lifetime; 636 params.pmk_reauth_threshold = pmk_reauth_threshold; 637 638 return wpa_drv_add_pmkid(wpa_s, ¶ms); 639 } 640 641 642 static int wpa_supplicant_remove_pmkid(void *_wpa_s, void *network_ctx, 643 const u8 *bssid, const u8 *pmkid, 644 const u8 *fils_cache_id) 645 { 646 struct wpa_supplicant *wpa_s = _wpa_s; 647 struct wpa_ssid *ssid; 648 struct wpa_pmkid_params params; 649 650 os_memset(¶ms, 0, sizeof(params)); 651 ssid = wpas_get_network_ctx(wpa_s, network_ctx); 652 if (ssid) 653 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_REMOVED MACSTR " %d", 654 MAC2STR(bssid), ssid->id); 655 if (ssid && fils_cache_id) { 656 params.ssid = ssid->ssid; 657 params.ssid_len = ssid->ssid_len; 658 params.fils_cache_id = fils_cache_id; 659 } else { 660 params.bssid = bssid; 661 } 662 663 params.pmkid = pmkid; 664 665 return wpa_drv_remove_pmkid(wpa_s, ¶ms); 666 } 667 668 669 #ifdef CONFIG_IEEE80211R 670 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md, 671 const u8 *ies, size_t ies_len) 672 { 673 struct wpa_supplicant *wpa_s = ctx; 674 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 675 return sme_update_ft_ies(wpa_s, md, ies, ies_len); 676 return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len); 677 } 678 679 680 static int wpa_supplicant_send_ft_action(void *ctx, u8 action, 681 const u8 *target_ap, 682 const u8 *ies, size_t ies_len) 683 { 684 struct wpa_supplicant *wpa_s = ctx; 685 int ret; 686 u8 *data, *pos; 687 size_t data_len; 688 689 if (action != 1) { 690 wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d", 691 action); 692 return -1; 693 } 694 695 /* 696 * Action frame payload: 697 * Category[1] = 6 (Fast BSS Transition) 698 * Action[1] = 1 (Fast BSS Transition Request) 699 * STA Address 700 * Target AP Address 701 * FT IEs 702 */ 703 704 data_len = 2 + 2 * ETH_ALEN + ies_len; 705 data = os_malloc(data_len); 706 if (data == NULL) 707 return -1; 708 pos = data; 709 *pos++ = 0x06; /* FT Action category */ 710 *pos++ = action; 711 os_memcpy(pos, wpa_s->own_addr, ETH_ALEN); 712 pos += ETH_ALEN; 713 os_memcpy(pos, target_ap, ETH_ALEN); 714 pos += ETH_ALEN; 715 os_memcpy(pos, ies, ies_len); 716 717 ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, 718 wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid, 719 data, data_len, 0); 720 os_free(data); 721 722 return ret; 723 } 724 725 726 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap) 727 { 728 struct wpa_supplicant *wpa_s = ctx; 729 struct wpa_driver_auth_params params; 730 struct wpa_bss *bss; 731 732 bss = wpa_bss_get_bssid(wpa_s, target_ap); 733 if (bss == NULL) 734 return -1; 735 736 os_memset(¶ms, 0, sizeof(params)); 737 params.bssid = target_ap; 738 params.freq = bss->freq; 739 params.ssid = bss->ssid; 740 params.ssid_len = bss->ssid_len; 741 params.auth_alg = WPA_AUTH_ALG_FT; 742 params.local_state_change = 1; 743 return wpa_drv_authenticate(wpa_s, ¶ms); 744 } 745 #endif /* CONFIG_IEEE80211R */ 746 747 748 #ifdef CONFIG_TDLS 749 750 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported, 751 int *tdls_ext_setup, 752 int *tdls_chan_switch) 753 { 754 struct wpa_supplicant *wpa_s = ctx; 755 756 *tdls_supported = 0; 757 *tdls_ext_setup = 0; 758 *tdls_chan_switch = 0; 759 760 if (!wpa_s->drv_capa_known) 761 return -1; 762 763 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) 764 *tdls_supported = 1; 765 766 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP) 767 *tdls_ext_setup = 1; 768 769 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH) 770 *tdls_chan_switch = 1; 771 772 return 0; 773 } 774 775 776 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst, 777 u8 action_code, u8 dialog_token, 778 u16 status_code, u32 peer_capab, 779 int initiator, const u8 *buf, 780 size_t len, int link_id) 781 { 782 struct wpa_supplicant *wpa_s = ctx; 783 return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token, 784 status_code, peer_capab, initiator, buf, 785 len, link_id); 786 } 787 788 789 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer) 790 { 791 struct wpa_supplicant *wpa_s = ctx; 792 return wpa_drv_tdls_oper(wpa_s, oper, peer); 793 } 794 795 796 static int wpa_supplicant_tdls_peer_addset( 797 void *ctx, const u8 *peer, int add, u16 aid, u16 capability, 798 const u8 *supp_rates, size_t supp_rates_len, 799 const struct ieee80211_ht_capabilities *ht_capab, 800 const struct ieee80211_vht_capabilities *vht_capab, 801 const struct ieee80211_he_capabilities *he_capab, 802 size_t he_capab_len, 803 const struct ieee80211_he_6ghz_band_cap *he_6ghz_he_capab, 804 u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len, 805 const u8 *supp_channels, size_t supp_channels_len, 806 const u8 *supp_oper_classes, size_t supp_oper_classes_len, 807 const struct ieee80211_eht_capabilities *eht_capab, 808 size_t eht_capab_len, int mld_link_id) 809 { 810 struct wpa_supplicant *wpa_s = ctx; 811 struct hostapd_sta_add_params params; 812 813 os_memset(¶ms, 0, sizeof(params)); 814 815 params.addr = peer; 816 params.aid = aid; 817 params.capability = capability; 818 params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED; 819 820 /* 821 * Don't rely only on qosinfo for WMM capability. It may be 0 even when 822 * present. Allow the WMM IE to also indicate QoS support. 823 */ 824 if (wmm || qosinfo) 825 params.flags |= WPA_STA_WMM; 826 827 params.ht_capabilities = ht_capab; 828 params.vht_capabilities = vht_capab; 829 params.he_capab = he_capab; 830 params.he_capab_len = he_capab_len; 831 params.he_6ghz_capab = he_6ghz_he_capab; 832 params.qosinfo = qosinfo; 833 params.listen_interval = 0; 834 params.supp_rates = supp_rates; 835 params.supp_rates_len = supp_rates_len; 836 params.set = !add; 837 params.ext_capab = ext_capab; 838 params.ext_capab_len = ext_capab_len; 839 params.supp_channels = supp_channels; 840 params.supp_channels_len = supp_channels_len; 841 params.supp_oper_classes = supp_oper_classes; 842 params.supp_oper_classes_len = supp_oper_classes_len; 843 params.eht_capab = eht_capab; 844 params.eht_capab_len = eht_capab_len; 845 params.mld_link_id = mld_link_id; 846 847 return wpa_drv_sta_add(wpa_s, ¶ms); 848 } 849 850 851 static int wpa_supplicant_tdls_enable_channel_switch( 852 void *ctx, const u8 *addr, u8 oper_class, 853 const struct hostapd_freq_params *params) 854 { 855 struct wpa_supplicant *wpa_s = ctx; 856 857 return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class, 858 params); 859 } 860 861 862 static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr) 863 { 864 struct wpa_supplicant *wpa_s = ctx; 865 866 return wpa_drv_tdls_disable_channel_switch(wpa_s, addr); 867 } 868 869 #endif /* CONFIG_TDLS */ 870 871 #endif /* CONFIG_NO_WPA */ 872 873 874 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field) 875 { 876 if (os_strcmp(field, "IDENTITY") == 0) 877 return WPA_CTRL_REQ_EAP_IDENTITY; 878 else if (os_strcmp(field, "PASSWORD") == 0) 879 return WPA_CTRL_REQ_EAP_PASSWORD; 880 else if (os_strcmp(field, "NEW_PASSWORD") == 0) 881 return WPA_CTRL_REQ_EAP_NEW_PASSWORD; 882 else if (os_strcmp(field, "PIN") == 0) 883 return WPA_CTRL_REQ_EAP_PIN; 884 else if (os_strcmp(field, "OTP") == 0) 885 return WPA_CTRL_REQ_EAP_OTP; 886 else if (os_strcmp(field, "PASSPHRASE") == 0) 887 return WPA_CTRL_REQ_EAP_PASSPHRASE; 888 else if (os_strcmp(field, "SIM") == 0) 889 return WPA_CTRL_REQ_SIM; 890 else if (os_strcmp(field, "PSK_PASSPHRASE") == 0) 891 return WPA_CTRL_REQ_PSK_PASSPHRASE; 892 else if (os_strcmp(field, "EXT_CERT_CHECK") == 0) 893 return WPA_CTRL_REQ_EXT_CERT_CHECK; 894 return WPA_CTRL_REQ_UNKNOWN; 895 } 896 897 898 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field, 899 const char *default_txt, 900 const char **txt) 901 { 902 const char *ret = NULL; 903 904 *txt = default_txt; 905 906 switch (field) { 907 case WPA_CTRL_REQ_EAP_IDENTITY: 908 *txt = "Identity"; 909 ret = "IDENTITY"; 910 break; 911 case WPA_CTRL_REQ_EAP_PASSWORD: 912 *txt = "Password"; 913 ret = "PASSWORD"; 914 break; 915 case WPA_CTRL_REQ_EAP_NEW_PASSWORD: 916 *txt = "New Password"; 917 ret = "NEW_PASSWORD"; 918 break; 919 case WPA_CTRL_REQ_EAP_PIN: 920 *txt = "PIN"; 921 ret = "PIN"; 922 break; 923 case WPA_CTRL_REQ_EAP_OTP: 924 ret = "OTP"; 925 break; 926 case WPA_CTRL_REQ_EAP_PASSPHRASE: 927 *txt = "Private key passphrase"; 928 ret = "PASSPHRASE"; 929 break; 930 case WPA_CTRL_REQ_SIM: 931 ret = "SIM"; 932 break; 933 case WPA_CTRL_REQ_PSK_PASSPHRASE: 934 *txt = "PSK or passphrase"; 935 ret = "PSK_PASSPHRASE"; 936 break; 937 case WPA_CTRL_REQ_EXT_CERT_CHECK: 938 *txt = "External server certificate validation"; 939 ret = "EXT_CERT_CHECK"; 940 break; 941 default: 942 break; 943 } 944 945 /* txt needs to be something */ 946 if (*txt == NULL) { 947 wpa_printf(MSG_WARNING, "No message for request %d", field); 948 ret = NULL; 949 } 950 951 return ret; 952 } 953 954 955 void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, 956 const char *field_name, const char *txt) 957 { 958 wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s-%d:%s needed for SSID %s", 959 field_name, ssid->id, txt, 960 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 961 } 962 963 964 #ifdef IEEE8021X_EAPOL 965 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) 966 static void wpa_supplicant_eap_param_needed(void *ctx, 967 enum wpa_ctrl_req_type field, 968 const char *default_txt) 969 { 970 struct wpa_supplicant *wpa_s = ctx; 971 struct wpa_ssid *ssid = wpa_s->current_ssid; 972 const char *field_name, *txt = NULL; 973 974 if (ssid == NULL) 975 return; 976 977 if (field == WPA_CTRL_REQ_EXT_CERT_CHECK) 978 ssid->eap.pending_ext_cert_check = PENDING_CHECK; 979 wpas_notify_network_request(wpa_s, ssid, field, default_txt); 980 981 field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt, 982 &txt); 983 if (field_name == NULL) { 984 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed", 985 field); 986 return; 987 } 988 989 wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name); 990 991 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); 992 } 993 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ 994 #define wpa_supplicant_eap_param_needed NULL 995 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ 996 997 998 #ifdef CONFIG_EAP_PROXY 999 1000 static void wpa_supplicant_eap_proxy_cb(void *ctx) 1001 { 1002 struct wpa_supplicant *wpa_s = ctx; 1003 size_t len; 1004 1005 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1, 1006 wpa_s->imsi, &len); 1007 if (wpa_s->mnc_len > 0) { 1008 wpa_s->imsi[len] = '\0'; 1009 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)", 1010 wpa_s->imsi, wpa_s->mnc_len); 1011 } else { 1012 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available"); 1013 } 1014 } 1015 1016 1017 static void wpa_sm_sim_state_error_handler(struct wpa_supplicant *wpa_s) 1018 { 1019 int i; 1020 struct wpa_ssid *ssid; 1021 const struct eap_method_type *eap_methods; 1022 1023 if (!wpa_s->conf) 1024 return; 1025 1026 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1027 eap_methods = ssid->eap.eap_methods; 1028 if (!eap_methods) 1029 continue; 1030 1031 for (i = 0; eap_methods[i].method != EAP_TYPE_NONE; i++) { 1032 if (eap_methods[i].vendor == EAP_VENDOR_IETF && 1033 (eap_methods[i].method == EAP_TYPE_SIM || 1034 eap_methods[i].method == EAP_TYPE_AKA || 1035 eap_methods[i].method == EAP_TYPE_AKA_PRIME)) { 1036 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid); 1037 break; 1038 } 1039 } 1040 } 1041 } 1042 1043 1044 static void 1045 wpa_supplicant_eap_proxy_notify_sim_status(void *ctx, 1046 enum eap_proxy_sim_state sim_state) 1047 { 1048 struct wpa_supplicant *wpa_s = ctx; 1049 1050 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status %u", sim_state); 1051 switch (sim_state) { 1052 case SIM_STATE_ERROR: 1053 wpa_sm_sim_state_error_handler(wpa_s); 1054 break; 1055 default: 1056 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status unknown"); 1057 break; 1058 } 1059 } 1060 1061 #endif /* CONFIG_EAP_PROXY */ 1062 1063 1064 static void wpa_supplicant_port_cb(void *ctx, int authorized) 1065 { 1066 struct wpa_supplicant *wpa_s = ctx; 1067 #ifdef CONFIG_AP 1068 if (wpa_s->ap_iface) { 1069 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant " 1070 "port status: %s", 1071 authorized ? "Authorized" : "Unauthorized"); 1072 return; 1073 } 1074 #endif /* CONFIG_AP */ 1075 wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s", 1076 authorized ? "Authorized" : "Unauthorized"); 1077 wpa_drv_set_supp_port(wpa_s, authorized); 1078 } 1079 1080 1081 static void wpa_supplicant_cert_cb(void *ctx, struct tls_cert_data *cert, 1082 const char *cert_hash) 1083 { 1084 struct wpa_supplicant *wpa_s = ctx; 1085 1086 wpas_notify_certification(wpa_s, cert, cert_hash); 1087 } 1088 1089 1090 static void wpa_supplicant_status_cb(void *ctx, const char *status, 1091 const char *parameter) 1092 { 1093 struct wpa_supplicant *wpa_s = ctx; 1094 1095 wpas_notify_eap_status(wpa_s, status, parameter); 1096 } 1097 1098 1099 static void wpa_supplicant_eap_error_cb(void *ctx, int error_code) 1100 { 1101 struct wpa_supplicant *wpa_s = ctx; 1102 1103 wpas_notify_eap_error(wpa_s, error_code); 1104 } 1105 1106 1107 static int wpa_supplicant_eap_auth_start_cb(void *ctx) 1108 { 1109 struct wpa_supplicant *wpa_s = ctx; 1110 1111 if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey && 1112 !wpa_sm_ext_key_id_active(wpa_s->wpa)) { 1113 wpa_msg(wpa_s, MSG_INFO, 1114 "WPA: PTK0 rekey not allowed, reconnecting"); 1115 wpa_supplicant_reconnect(wpa_s); 1116 return -1; 1117 } 1118 return 0; 1119 } 1120 1121 1122 static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len) 1123 { 1124 struct wpa_supplicant *wpa_s = ctx; 1125 char *str; 1126 int res; 1127 1128 wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity", 1129 id, len); 1130 1131 if (wpa_s->current_ssid == NULL) 1132 return; 1133 1134 if (id == NULL) { 1135 if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity", 1136 "NULL", 0) < 0) 1137 return; 1138 } else { 1139 str = os_malloc(len * 2 + 1); 1140 if (str == NULL) 1141 return; 1142 wpa_snprintf_hex(str, len * 2 + 1, id, len); 1143 res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity", 1144 str, 0); 1145 os_free(str); 1146 if (res < 0) 1147 return; 1148 } 1149 1150 if (wpa_s->conf->update_config) { 1151 res = wpa_config_write(wpa_s->confname, wpa_s->conf); 1152 if (res) { 1153 wpa_printf(MSG_DEBUG, "Failed to update config after " 1154 "anonymous_id update"); 1155 } 1156 } 1157 } 1158 1159 1160 static bool wpas_encryption_required(void *ctx) 1161 { 1162 struct wpa_supplicant *wpa_s = ctx; 1163 1164 return wpa_s->wpa && 1165 wpa_sm_has_ptk_installed(wpa_s->wpa) && 1166 wpa_sm_pmf_enabled(wpa_s->wpa); 1167 } 1168 1169 #endif /* IEEE8021X_EAPOL */ 1170 1171 1172 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s) 1173 { 1174 #ifdef IEEE8021X_EAPOL 1175 struct eapol_ctx *ctx; 1176 ctx = os_zalloc(sizeof(*ctx)); 1177 if (ctx == NULL) { 1178 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context."); 1179 return -1; 1180 } 1181 1182 ctx->ctx = wpa_s; 1183 ctx->msg_ctx = wpa_s; 1184 ctx->eapol_send_ctx = wpa_s; 1185 ctx->preauth = 0; 1186 ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done; 1187 ctx->eapol_send = wpa_supplicant_eapol_send; 1188 #ifdef CONFIG_WEP 1189 ctx->set_wep_key = wpa_eapol_set_wep_key; 1190 #endif /* CONFIG_WEP */ 1191 #ifndef CONFIG_NO_CONFIG_BLOBS 1192 ctx->set_config_blob = wpa_supplicant_set_config_blob; 1193 ctx->get_config_blob = wpa_supplicant_get_config_blob; 1194 #endif /* CONFIG_NO_CONFIG_BLOBS */ 1195 ctx->aborted_cached = wpa_supplicant_aborted_cached; 1196 #ifndef CONFIG_OPENSC_ENGINE_PATH 1197 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path; 1198 #endif /* CONFIG_OPENSC_ENGINE_PATH */ 1199 #ifndef CONFIG_PKCS11_ENGINE_PATH 1200 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path; 1201 #endif /* CONFIG_PKCS11_ENGINE_PATH */ 1202 #ifndef CONFIG_PKCS11_MODULE_PATH 1203 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path; 1204 #endif /* CONFIG_PKCS11_MODULE_PATH */ 1205 ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers; 1206 ctx->wps = wpa_s->wps; 1207 ctx->eap_param_needed = wpa_supplicant_eap_param_needed; 1208 #ifdef CONFIG_EAP_PROXY 1209 ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb; 1210 ctx->eap_proxy_notify_sim_status = 1211 wpa_supplicant_eap_proxy_notify_sim_status; 1212 #endif /* CONFIG_EAP_PROXY */ 1213 ctx->port_cb = wpa_supplicant_port_cb; 1214 ctx->cb = wpa_supplicant_eapol_cb; 1215 ctx->cert_cb = wpa_supplicant_cert_cb; 1216 ctx->cert_in_cb = wpa_s->conf->cert_in_cb; 1217 ctx->status_cb = wpa_supplicant_status_cb; 1218 ctx->eap_error_cb = wpa_supplicant_eap_error_cb; 1219 ctx->confirm_auth_cb = wpa_supplicant_eap_auth_start_cb; 1220 ctx->set_anon_id = wpa_supplicant_set_anon_id; 1221 ctx->encryption_required = wpas_encryption_required; 1222 ctx->cb_ctx = wpa_s; 1223 wpa_s->eapol = eapol_sm_init(ctx); 1224 if (wpa_s->eapol == NULL) { 1225 os_free(ctx); 1226 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state " 1227 "machines."); 1228 return -1; 1229 } 1230 #endif /* IEEE8021X_EAPOL */ 1231 1232 return 0; 1233 } 1234 1235 1236 #ifndef CONFIG_NO_WPA 1237 1238 static void wpa_supplicant_set_rekey_offload(void *ctx, 1239 const u8 *kek, size_t kek_len, 1240 const u8 *kck, size_t kck_len, 1241 const u8 *replay_ctr) 1242 { 1243 struct wpa_supplicant *wpa_s = ctx; 1244 1245 wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr); 1246 } 1247 1248 1249 static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk, 1250 size_t pmk_len) 1251 { 1252 struct wpa_supplicant *wpa_s = ctx; 1253 1254 if (wpa_s->conf->key_mgmt_offload && 1255 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) 1256 return wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, 1257 NULL, 0, pmk, pmk_len, KEY_FLAG_PMK); 1258 else 1259 return 0; 1260 } 1261 1262 1263 static void wpa_supplicant_fils_hlp_rx(void *ctx, const u8 *dst, const u8 *src, 1264 const u8 *pkt, size_t pkt_len) 1265 { 1266 struct wpa_supplicant *wpa_s = ctx; 1267 char *hex; 1268 size_t hexlen; 1269 1270 hexlen = pkt_len * 2 + 1; 1271 hex = os_malloc(hexlen); 1272 if (!hex) 1273 return; 1274 wpa_snprintf_hex(hex, hexlen, pkt, pkt_len); 1275 wpa_msg(wpa_s, MSG_INFO, FILS_HLP_RX "dst=" MACSTR " src=" MACSTR 1276 " frame=%s", MAC2STR(dst), MAC2STR(src), hex); 1277 os_free(hex); 1278 } 1279 1280 1281 static int wpa_supplicant_channel_info(void *_wpa_s, 1282 struct wpa_channel_info *ci) 1283 { 1284 struct wpa_supplicant *wpa_s = _wpa_s; 1285 1286 return wpa_drv_channel_info(wpa_s, ci); 1287 } 1288 1289 1290 static void disable_wpa_wpa2(struct wpa_ssid *ssid) 1291 { 1292 ssid->proto &= ~WPA_PROTO_WPA; 1293 ssid->proto |= WPA_PROTO_RSN; 1294 ssid->key_mgmt &= ~(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | 1295 WPA_KEY_MGMT_PSK_SHA256); 1296 ssid->group_cipher &= ~WPA_CIPHER_TKIP; 1297 if (!(ssid->group_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | 1298 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256))) 1299 ssid->group_cipher |= WPA_CIPHER_CCMP; 1300 ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED; 1301 } 1302 1303 1304 void wpas_transition_disable(struct wpa_supplicant *wpa_s, u8 bitmap) 1305 { 1306 struct wpa_ssid *ssid; 1307 int changed = 0; 1308 1309 wpa_msg(wpa_s, MSG_INFO, TRANSITION_DISABLE "%02x", bitmap); 1310 1311 ssid = wpa_s->current_ssid; 1312 if (!ssid) 1313 return; 1314 1315 #ifdef CONFIG_SAE 1316 if ((bitmap & TRANSITION_DISABLE_WPA3_PERSONAL) && 1317 wpa_key_mgmt_sae(wpa_s->key_mgmt) && 1318 wpa_key_mgmt_sae(ssid->key_mgmt) && 1319 (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED || 1320 (ssid->group_cipher & WPA_CIPHER_TKIP))) { 1321 wpa_printf(MSG_DEBUG, 1322 "WPA3-Personal transition mode disabled based on AP notification"); 1323 disable_wpa_wpa2(ssid); 1324 changed = 1; 1325 } 1326 1327 if ((bitmap & TRANSITION_DISABLE_SAE_PK) && 1328 wpa_key_mgmt_sae(wpa_s->key_mgmt) && 1329 #ifdef CONFIG_SME 1330 wpa_s->sme.sae.state == SAE_ACCEPTED && 1331 wpa_s->sme.sae.pk && 1332 #endif /* CONFIG_SME */ 1333 wpa_key_mgmt_sae(ssid->key_mgmt) && 1334 (ssid->sae_pk != SAE_PK_MODE_ONLY || 1335 ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED || 1336 (ssid->group_cipher & WPA_CIPHER_TKIP))) { 1337 wpa_printf(MSG_DEBUG, 1338 "SAE-PK: SAE authentication without PK disabled based on AP notification"); 1339 disable_wpa_wpa2(ssid); 1340 ssid->sae_pk = SAE_PK_MODE_ONLY; 1341 changed = 1; 1342 } 1343 #endif /* CONFIG_SAE */ 1344 1345 if ((bitmap & TRANSITION_DISABLE_WPA3_ENTERPRISE) && 1346 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && 1347 (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | 1348 WPA_KEY_MGMT_FT_IEEE8021X | 1349 WPA_KEY_MGMT_IEEE8021X_SHA256 | 1350 WPA_KEY_MGMT_IEEE8021X_SHA384)) && 1351 (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED || 1352 (ssid->group_cipher & WPA_CIPHER_TKIP))) { 1353 disable_wpa_wpa2(ssid); 1354 changed = 1; 1355 } 1356 1357 if ((bitmap & TRANSITION_DISABLE_ENHANCED_OPEN) && 1358 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE && 1359 (ssid->key_mgmt & WPA_KEY_MGMT_OWE) && 1360 !ssid->owe_only) { 1361 ssid->owe_only = 1; 1362 changed = 1; 1363 } 1364 1365 if (!changed) 1366 return; 1367 1368 #ifndef CONFIG_NO_CONFIG_WRITE 1369 if (wpa_s->conf->update_config && 1370 wpa_config_write(wpa_s->confname, wpa_s->conf)) 1371 wpa_printf(MSG_DEBUG, "Failed to update configuration"); 1372 #endif /* CONFIG_NO_CONFIG_WRITE */ 1373 } 1374 1375 1376 static void wpa_supplicant_transition_disable(void *_wpa_s, u8 bitmap) 1377 { 1378 struct wpa_supplicant *wpa_s = _wpa_s; 1379 wpas_transition_disable(wpa_s, bitmap); 1380 } 1381 1382 1383 static void wpa_supplicant_store_ptk(void *ctx, const u8 *addr, int cipher, 1384 u32 life_time, const struct wpa_ptk *ptk) 1385 { 1386 struct wpa_supplicant *wpa_s = ctx; 1387 1388 ptksa_cache_add(wpa_s->ptksa, wpa_s->own_addr, addr, cipher, life_time, 1389 ptk, NULL, NULL, 0); 1390 } 1391 1392 #endif /* CONFIG_NO_WPA */ 1393 1394 1395 #ifdef CONFIG_PASN 1396 static int wpa_supplicant_set_ltf_keyseed(void *_wpa_s, const u8 *own_addr, 1397 const u8 *peer_addr, 1398 size_t ltf_keyseed_len, 1399 const u8 *ltf_keyseed) 1400 { 1401 struct wpa_supplicant *wpa_s = _wpa_s; 1402 1403 return wpa_drv_set_secure_ranging_ctx(wpa_s, own_addr, peer_addr, 0, 0, 1404 NULL, ltf_keyseed_len, 1405 ltf_keyseed, 0); 1406 } 1407 #endif /* CONFIG_PASN */ 1408 1409 1410 static void 1411 wpa_supplicant_notify_pmksa_cache_entry(void *_wpa_s, 1412 struct rsn_pmksa_cache_entry *entry) 1413 { 1414 struct wpa_supplicant *wpa_s = _wpa_s; 1415 1416 wpas_notify_pmk_cache_added(wpa_s, entry); 1417 } 1418 1419 1420 static void wpa_supplicant_ssid_verified(void *_wpa_s) 1421 { 1422 struct wpa_supplicant *wpa_s = _wpa_s; 1423 1424 wpa_s->ssid_verified = true; 1425 wpa_msg(wpa_s, MSG_INFO, "RSN: SSID matched expected value"); 1426 } 1427 1428 1429 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s) 1430 { 1431 #ifndef CONFIG_NO_WPA 1432 struct wpa_sm_ctx *ctx; 1433 1434 wpa_s->ptksa = ptksa_cache_init(); 1435 if (!wpa_s->ptksa) { 1436 wpa_printf(MSG_ERROR, "Failed to allocate PTKSA"); 1437 return -1; 1438 } 1439 1440 ctx = os_zalloc(sizeof(*ctx)); 1441 if (ctx == NULL) { 1442 wpa_printf(MSG_ERROR, "Failed to allocate WPA context."); 1443 1444 ptksa_cache_deinit(wpa_s->ptksa); 1445 wpa_s->ptksa = NULL; 1446 1447 return -1; 1448 } 1449 1450 ctx->ctx = wpa_s; 1451 ctx->msg_ctx = wpa_s; 1452 ctx->set_state = _wpa_supplicant_set_state; 1453 ctx->get_state = _wpa_supplicant_get_state; 1454 ctx->deauthenticate = _wpa_supplicant_deauthenticate; 1455 ctx->reconnect = _wpa_supplicant_reconnect; 1456 ctx->set_key = wpa_supplicant_set_key; 1457 ctx->get_network_ctx = wpa_supplicant_get_network_ctx; 1458 ctx->get_bssid = wpa_supplicant_get_bssid; 1459 ctx->ether_send = _wpa_ether_send; 1460 ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie; 1461 ctx->alloc_eapol = _wpa_alloc_eapol; 1462 ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout; 1463 ctx->add_pmkid = wpa_supplicant_add_pmkid; 1464 ctx->remove_pmkid = wpa_supplicant_remove_pmkid; 1465 #ifndef CONFIG_NO_CONFIG_BLOBS 1466 ctx->set_config_blob = wpa_supplicant_set_config_blob; 1467 ctx->get_config_blob = wpa_supplicant_get_config_blob; 1468 #endif /* CONFIG_NO_CONFIG_BLOBS */ 1469 ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection; 1470 #ifdef CONFIG_IEEE80211R 1471 ctx->update_ft_ies = wpa_supplicant_update_ft_ies; 1472 ctx->send_ft_action = wpa_supplicant_send_ft_action; 1473 ctx->mark_authenticated = wpa_supplicant_mark_authenticated; 1474 #endif /* CONFIG_IEEE80211R */ 1475 #ifdef CONFIG_TDLS 1476 ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa; 1477 ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt; 1478 ctx->tdls_oper = wpa_supplicant_tdls_oper; 1479 ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset; 1480 ctx->tdls_enable_channel_switch = 1481 wpa_supplicant_tdls_enable_channel_switch; 1482 ctx->tdls_disable_channel_switch = 1483 wpa_supplicant_tdls_disable_channel_switch; 1484 #endif /* CONFIG_TDLS */ 1485 ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload; 1486 ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk; 1487 ctx->fils_hlp_rx = wpa_supplicant_fils_hlp_rx; 1488 ctx->channel_info = wpa_supplicant_channel_info; 1489 ctx->transition_disable = wpa_supplicant_transition_disable; 1490 ctx->store_ptk = wpa_supplicant_store_ptk; 1491 #ifdef CONFIG_PASN 1492 ctx->set_ltf_keyseed = wpa_supplicant_set_ltf_keyseed; 1493 #endif /* CONFIG_PASN */ 1494 ctx->notify_pmksa_cache_entry = wpa_supplicant_notify_pmksa_cache_entry; 1495 ctx->ssid_verified = wpa_supplicant_ssid_verified; 1496 1497 wpa_s->wpa = wpa_sm_init(ctx); 1498 if (wpa_s->wpa == NULL) { 1499 wpa_printf(MSG_ERROR, 1500 "Failed to initialize WPA state machine"); 1501 os_free(ctx); 1502 ptksa_cache_deinit(wpa_s->ptksa); 1503 wpa_s->ptksa = NULL; 1504 return -1; 1505 } 1506 #endif /* CONFIG_NO_WPA */ 1507 1508 return 0; 1509 } 1510 1511 1512 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s, 1513 struct wpa_ssid *ssid) 1514 { 1515 struct rsn_supp_config conf; 1516 if (ssid) { 1517 os_memset(&conf, 0, sizeof(conf)); 1518 conf.network_ctx = ssid; 1519 conf.allowed_pairwise_cipher = ssid->pairwise_cipher; 1520 #ifdef IEEE8021X_EAPOL 1521 conf.proactive_key_caching = ssid->proactive_key_caching < 0 ? 1522 wpa_s->conf->okc : ssid->proactive_key_caching; 1523 conf.eap_workaround = ssid->eap_workaround; 1524 conf.eap_conf_ctx = &ssid->eap; 1525 #endif /* IEEE8021X_EAPOL */ 1526 conf.ssid = ssid->ssid; 1527 conf.ssid_len = ssid->ssid_len; 1528 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey; 1529 conf.wpa_deny_ptk0_rekey = ssid->wpa_deny_ptk0_rekey; 1530 conf.owe_ptk_workaround = ssid->owe_ptk_workaround; 1531 #ifdef CONFIG_P2P 1532 if (ssid->p2p_group && wpa_s->current_bss && 1533 !wpa_s->p2p_disable_ip_addr_req) { 1534 struct wpabuf *p2p; 1535 p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss, 1536 P2P_IE_VENDOR_TYPE); 1537 if (p2p) { 1538 u8 group_capab; 1539 group_capab = p2p_get_group_capab(p2p); 1540 if (group_capab & 1541 P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION) 1542 conf.p2p = 1; 1543 wpabuf_free(p2p); 1544 } 1545 } 1546 #endif /* CONFIG_P2P */ 1547 conf.wpa_rsc_relaxation = wpa_s->conf->wpa_rsc_relaxation; 1548 #ifdef CONFIG_FILS 1549 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) 1550 conf.fils_cache_id = 1551 wpa_bss_get_fils_cache_id(wpa_s->current_bss); 1552 #endif /* CONFIG_FILS */ 1553 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_BEACON_PROTECTION) || 1554 (wpa_s->drv_flags2 & 1555 WPA_DRIVER_FLAGS2_BEACON_PROTECTION_CLIENT)) 1556 conf.beacon_prot = ssid->beacon_prot; 1557 1558 #ifdef CONFIG_PASN 1559 #ifdef CONFIG_TESTING_OPTIONS 1560 conf.force_kdk_derivation = wpa_s->conf->force_kdk_derivation; 1561 #endif /* CONFIG_TESTING_OPTIONS */ 1562 #endif /* CONFIG_PASN */ 1563 } 1564 wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL); 1565 } 1566