1 /* 2 * WPA Supplicant - Basic AP mode support routines 3 * Copyright (c) 2003-2009, Jouni Malinen <j (at) w1.fi> 4 * Copyright (c) 2009, Atheros Communications 5 * 6 * This software may be distributed under the terms of the BSD license. 7 * See README for more details. 8 */ 9 10 #include "utils/includes.h" 11 12 #include "utils/common.h" 13 #include "utils/eloop.h" 14 #include "utils/uuid.h" 15 #include "common/ieee802_11_defs.h" 16 #include "common/wpa_ctrl.h" 17 #include "ap/hostapd.h" 18 #include "ap/ap_config.h" 19 #include "ap/ap_drv_ops.h" 20 #ifdef NEED_AP_MLME 21 #include "ap/ieee802_11.h" 22 #endif /* NEED_AP_MLME */ 23 #include "ap/beacon.h" 24 #include "ap/ieee802_1x.h" 25 #include "ap/wps_hostapd.h" 26 #include "ap/ctrl_iface_ap.h" 27 #include "wps/wps.h" 28 #include "common/ieee802_11_defs.h" 29 #include "config_ssid.h" 30 #include "config.h" 31 #include "wpa_supplicant_i.h" 32 #include "driver_i.h" 33 #include "p2p_supplicant.h" 34 #include "ap.h" 35 #include "ap/sta_info.h" 36 #include "notify.h" 37 38 39 #ifdef CONFIG_WPS 40 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 41 #endif /* CONFIG_WPS */ 42 43 44 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s, 45 struct wpa_ssid *ssid, 46 struct hostapd_config *conf) 47 { 48 struct hostapd_bss_config *bss = &conf->bss[0]; 49 50 conf->driver = wpa_s->driver; 51 52 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface)); 53 54 if (ssid->frequency == 0) { 55 /* default channel 11 */ 56 conf->hw_mode = HOSTAPD_MODE_IEEE80211G; 57 conf->channel = 11; 58 } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) { 59 conf->hw_mode = HOSTAPD_MODE_IEEE80211G; 60 conf->channel = (ssid->frequency - 2407) / 5; 61 } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) || 62 (ssid->frequency >= 5745 && ssid->frequency <= 5825)) { 63 conf->hw_mode = HOSTAPD_MODE_IEEE80211A; 64 conf->channel = (ssid->frequency - 5000) / 5; 65 } else if (ssid->frequency >= 56160 + 2160 * 1 && 66 ssid->frequency <= 56160 + 2160 * 4) { 67 conf->hw_mode = HOSTAPD_MODE_IEEE80211AD; 68 conf->channel = (ssid->frequency - 56160) / 2160; 69 } else { 70 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", 71 ssid->frequency); 72 return -1; 73 } 74 75 /* TODO: enable HT40 if driver supports it; 76 * drop to 11b if driver does not support 11g */ 77 78 #ifdef CONFIG_IEEE80211N 79 /* 80 * Enable HT20 if the driver supports it, by setting conf->ieee80211n 81 * and a mask of allowed capabilities within conf->ht_capab. 82 * Using default config settings for: conf->ht_op_mode_fixed, 83 * conf->secondary_channel, conf->require_ht 84 */ 85 if (wpa_s->hw.modes) { 86 struct hostapd_hw_modes *mode = NULL; 87 int i, no_ht = 0; 88 for (i = 0; i < wpa_s->hw.num_modes; i++) { 89 if (wpa_s->hw.modes[i].mode == conf->hw_mode) { 90 mode = &wpa_s->hw.modes[i]; 91 break; 92 } 93 } 94 95 #ifdef CONFIG_HT_OVERRIDES 96 if (ssid->disable_ht) { 97 conf->ieee80211n = 0; 98 conf->ht_capab = 0; 99 no_ht = 1; 100 } 101 #endif /* CONFIG_HT_OVERRIDES */ 102 103 if (!no_ht && mode && mode->ht_capab) { 104 conf->ieee80211n = 1; 105 #ifdef CONFIG_P2P 106 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && 107 (mode->ht_capab & 108 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && 109 ssid->ht40) 110 conf->secondary_channel = 111 wpas_p2p_get_ht40_mode(wpa_s, mode, 112 conf->channel); 113 if (conf->secondary_channel) 114 conf->ht_capab |= 115 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET; 116 #endif /* CONFIG_P2P */ 117 118 /* 119 * white-list capabilities that won't cause issues 120 * to connecting stations, while leaving the current 121 * capabilities intact (currently disabled SMPS). 122 */ 123 conf->ht_capab |= mode->ht_capab & 124 (HT_CAP_INFO_GREEN_FIELD | 125 HT_CAP_INFO_SHORT_GI20MHZ | 126 HT_CAP_INFO_SHORT_GI40MHZ | 127 HT_CAP_INFO_RX_STBC_MASK | 128 HT_CAP_INFO_MAX_AMSDU_SIZE); 129 } 130 } 131 #endif /* CONFIG_IEEE80211N */ 132 133 #ifdef CONFIG_P2P 134 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) { 135 /* Remove 802.11b rates from supported and basic rate sets */ 136 int *list = os_malloc(4 * sizeof(int)); 137 if (list) { 138 list[0] = 60; 139 list[1] = 120; 140 list[2] = 240; 141 list[3] = -1; 142 } 143 conf->basic_rates = list; 144 145 list = os_malloc(9 * sizeof(int)); 146 if (list) { 147 list[0] = 60; 148 list[1] = 90; 149 list[2] = 120; 150 list[3] = 180; 151 list[4] = 240; 152 list[5] = 360; 153 list[6] = 480; 154 list[7] = 540; 155 list[8] = -1; 156 } 157 conf->supported_rates = list; 158 } 159 160 bss->isolate = !wpa_s->conf->p2p_intra_bss; 161 #endif /* CONFIG_P2P */ 162 163 if (ssid->ssid_len == 0) { 164 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 165 return -1; 166 } 167 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); 168 bss->ssid.ssid_len = ssid->ssid_len; 169 bss->ssid.ssid_set = 1; 170 171 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid; 172 173 if (ssid->auth_alg) 174 bss->auth_algs = ssid->auth_alg; 175 176 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) 177 bss->wpa = ssid->proto; 178 bss->wpa_key_mgmt = ssid->key_mgmt; 179 bss->wpa_pairwise = ssid->pairwise_cipher; 180 if (ssid->psk_set) { 181 os_free(bss->ssid.wpa_psk); 182 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 183 if (bss->ssid.wpa_psk == NULL) 184 return -1; 185 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); 186 bss->ssid.wpa_psk->group = 1; 187 } else if (ssid->passphrase) { 188 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); 189 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] || 190 ssid->wep_key_len[2] || ssid->wep_key_len[3]) { 191 struct hostapd_wep_keys *wep = &bss->ssid.wep; 192 int i; 193 for (i = 0; i < NUM_WEP_KEYS; i++) { 194 if (ssid->wep_key_len[i] == 0) 195 continue; 196 wep->key[i] = os_malloc(ssid->wep_key_len[i]); 197 if (wep->key[i] == NULL) 198 return -1; 199 os_memcpy(wep->key[i], ssid->wep_key[i], 200 ssid->wep_key_len[i]); 201 wep->len[i] = ssid->wep_key_len[i]; 202 } 203 wep->idx = ssid->wep_tx_keyidx; 204 wep->keys_set = 1; 205 } 206 207 if (ssid->ap_max_inactivity) 208 bss->ap_max_inactivity = ssid->ap_max_inactivity; 209 210 if (ssid->dtim_period) 211 bss->dtim_period = ssid->dtim_period; 212 else if (wpa_s->conf->dtim_period) 213 bss->dtim_period = wpa_s->conf->dtim_period; 214 215 if (ssid->beacon_int) 216 conf->beacon_int = ssid->beacon_int; 217 else if (wpa_s->conf->beacon_int) 218 conf->beacon_int = wpa_s->conf->beacon_int; 219 220 if ((bss->wpa & 2) && bss->rsn_pairwise == 0) 221 bss->rsn_pairwise = bss->wpa_pairwise; 222 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise, 223 bss->rsn_pairwise); 224 225 if (bss->wpa && bss->ieee802_1x) 226 bss->ssid.security_policy = SECURITY_WPA; 227 else if (bss->wpa) 228 bss->ssid.security_policy = SECURITY_WPA_PSK; 229 else if (bss->ieee802_1x) { 230 int cipher = WPA_CIPHER_NONE; 231 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 232 bss->ssid.wep.default_len = bss->default_wep_key_len; 233 if (bss->default_wep_key_len) 234 cipher = bss->default_wep_key_len >= 13 ? 235 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 236 bss->wpa_group = cipher; 237 bss->wpa_pairwise = cipher; 238 bss->rsn_pairwise = cipher; 239 } else if (bss->ssid.wep.keys_set) { 240 int cipher = WPA_CIPHER_WEP40; 241 if (bss->ssid.wep.len[0] >= 13) 242 cipher = WPA_CIPHER_WEP104; 243 bss->ssid.security_policy = SECURITY_STATIC_WEP; 244 bss->wpa_group = cipher; 245 bss->wpa_pairwise = cipher; 246 bss->rsn_pairwise = cipher; 247 } else { 248 bss->ssid.security_policy = SECURITY_PLAINTEXT; 249 bss->wpa_group = WPA_CIPHER_NONE; 250 bss->wpa_pairwise = WPA_CIPHER_NONE; 251 bss->rsn_pairwise = WPA_CIPHER_NONE; 252 } 253 254 #ifdef CONFIG_WPS 255 /* 256 * Enable WPS by default for open and WPA/WPA2-Personal network, but 257 * require user interaction to actually use it. Only the internal 258 * Registrar is supported. 259 */ 260 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 261 bss->ssid.security_policy != SECURITY_PLAINTEXT) 262 goto no_wps; 263 #ifdef CONFIG_WPS2 264 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 265 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 266 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 267 * configuration */ 268 #endif /* CONFIG_WPS2 */ 269 bss->eap_server = 1; 270 271 if (!ssid->ignore_broadcast_ssid) 272 bss->wps_state = 2; 273 274 bss->ap_setup_locked = 2; 275 if (wpa_s->conf->config_methods) 276 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 277 os_memcpy(bss->device_type, wpa_s->conf->device_type, 278 WPS_DEV_TYPE_LEN); 279 if (wpa_s->conf->device_name) { 280 bss->device_name = os_strdup(wpa_s->conf->device_name); 281 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 282 } 283 if (wpa_s->conf->manufacturer) 284 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 285 if (wpa_s->conf->model_name) 286 bss->model_name = os_strdup(wpa_s->conf->model_name); 287 if (wpa_s->conf->model_number) 288 bss->model_number = os_strdup(wpa_s->conf->model_number); 289 if (wpa_s->conf->serial_number) 290 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 291 if (is_nil_uuid(wpa_s->conf->uuid)) 292 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 293 else 294 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 295 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 296 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 297 no_wps: 298 #endif /* CONFIG_WPS */ 299 300 if (wpa_s->max_stations && 301 wpa_s->max_stations < wpa_s->conf->max_num_sta) 302 bss->max_num_sta = wpa_s->max_stations; 303 else 304 bss->max_num_sta = wpa_s->conf->max_num_sta; 305 306 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 307 308 if (wpa_s->conf->ap_vendor_elements) { 309 bss->vendor_elements = 310 wpabuf_dup(wpa_s->conf->ap_vendor_elements); 311 } 312 313 return 0; 314 } 315 316 317 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 318 { 319 #ifdef CONFIG_P2P 320 struct wpa_supplicant *wpa_s = ctx; 321 const struct ieee80211_mgmt *mgmt; 322 size_t hdr_len; 323 324 mgmt = (const struct ieee80211_mgmt *) buf; 325 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 326 if (hdr_len > len) 327 return; 328 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 329 mgmt->u.action.category, 330 &mgmt->u.action.u.vs_public_action.action, 331 len - hdr_len, freq); 332 #endif /* CONFIG_P2P */ 333 } 334 335 336 static void ap_wps_event_cb(void *ctx, enum wps_event event, 337 union wps_event_data *data) 338 { 339 #ifdef CONFIG_P2P 340 struct wpa_supplicant *wpa_s = ctx; 341 342 if (event == WPS_EV_FAIL) { 343 struct wps_event_fail *fail = &data->fail; 344 345 if (wpa_s->parent && wpa_s->parent != wpa_s && 346 wpa_s == wpa_s->global->p2p_group_formation) { 347 /* 348 * src/ap/wps_hostapd.c has already sent this on the 349 * main interface, so only send on the parent interface 350 * here if needed. 351 */ 352 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 353 "msg=%d config_error=%d", 354 fail->msg, fail->config_error); 355 } 356 wpas_p2p_wps_failed(wpa_s, fail); 357 } 358 #endif /* CONFIG_P2P */ 359 } 360 361 362 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 363 int authorized, const u8 *p2p_dev_addr) 364 { 365 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 366 } 367 368 369 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 370 { 371 #ifdef CONFIG_P2P 372 struct wpa_supplicant *wpa_s = ctx; 373 const struct ieee80211_mgmt *mgmt; 374 size_t hdr_len; 375 376 mgmt = (const struct ieee80211_mgmt *) buf; 377 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 378 if (hdr_len > len) 379 return -1; 380 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 381 mgmt->u.action.category, 382 &mgmt->u.action.u.vs_public_action.action, 383 len - hdr_len, freq); 384 #endif /* CONFIG_P2P */ 385 return 0; 386 } 387 388 389 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 390 const u8 *bssid, const u8 *ie, size_t ie_len, 391 int ssi_signal) 392 { 393 #ifdef CONFIG_P2P 394 struct wpa_supplicant *wpa_s = ctx; 395 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 396 ssi_signal); 397 #else /* CONFIG_P2P */ 398 return 0; 399 #endif /* CONFIG_P2P */ 400 } 401 402 403 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 404 const u8 *uuid_e) 405 { 406 #ifdef CONFIG_P2P 407 struct wpa_supplicant *wpa_s = ctx; 408 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 409 #endif /* CONFIG_P2P */ 410 } 411 412 413 static void wpas_ap_configured_cb(void *ctx) 414 { 415 struct wpa_supplicant *wpa_s = ctx; 416 417 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 418 419 if (wpa_s->ap_configured_cb) 420 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 421 wpa_s->ap_configured_cb_data); 422 } 423 424 425 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 426 struct wpa_ssid *ssid) 427 { 428 struct wpa_driver_associate_params params; 429 struct hostapd_iface *hapd_iface; 430 struct hostapd_config *conf; 431 size_t i; 432 433 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 434 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 435 return -1; 436 } 437 438 wpa_supplicant_ap_deinit(wpa_s); 439 440 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 441 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 442 443 os_memset(¶ms, 0, sizeof(params)); 444 params.ssid = ssid->ssid; 445 params.ssid_len = ssid->ssid_len; 446 switch (ssid->mode) { 447 case WPAS_MODE_INFRA: 448 params.mode = IEEE80211_MODE_INFRA; 449 break; 450 case WPAS_MODE_IBSS: 451 params.mode = IEEE80211_MODE_IBSS; 452 break; 453 case WPAS_MODE_AP: 454 case WPAS_MODE_P2P_GO: 455 case WPAS_MODE_P2P_GROUP_FORMATION: 456 params.mode = IEEE80211_MODE_AP; 457 break; 458 } 459 params.freq = ssid->frequency; 460 461 params.wpa_proto = ssid->proto; 462 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 463 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 464 else 465 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 466 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 467 468 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 469 1); 470 if (wpa_s->pairwise_cipher < 0) { 471 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 472 "cipher."); 473 return -1; 474 } 475 params.pairwise_suite = 476 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher); 477 params.group_suite = params.pairwise_suite; 478 479 #ifdef CONFIG_P2P 480 if (ssid->mode == WPAS_MODE_P2P_GO || 481 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 482 params.p2p = 1; 483 #endif /* CONFIG_P2P */ 484 485 if (wpa_s->parent->set_ap_uapsd) 486 params.uapsd = wpa_s->parent->ap_uapsd; 487 else 488 params.uapsd = -1; 489 490 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 491 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 492 return -1; 493 } 494 495 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 496 if (hapd_iface == NULL) 497 return -1; 498 hapd_iface->owner = wpa_s; 499 hapd_iface->drv_flags = wpa_s->drv_flags; 500 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 501 hapd_iface->extended_capa = wpa_s->extended_capa; 502 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask; 503 hapd_iface->extended_capa_len = wpa_s->extended_capa_len; 504 505 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 506 if (conf == NULL) { 507 wpa_supplicant_ap_deinit(wpa_s); 508 return -1; 509 } 510 511 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 512 wpa_s->conf->wmm_ac_params, 513 sizeof(wpa_s->conf->wmm_ac_params)); 514 515 if (params.uapsd > 0) { 516 conf->bss->wmm_enabled = 1; 517 conf->bss->wmm_uapsd = 1; 518 } 519 520 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 521 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 522 wpa_supplicant_ap_deinit(wpa_s); 523 return -1; 524 } 525 526 #ifdef CONFIG_P2P 527 if (ssid->mode == WPAS_MODE_P2P_GO) 528 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 529 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 530 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 531 P2P_GROUP_FORMATION; 532 #endif /* CONFIG_P2P */ 533 534 hapd_iface->num_bss = conf->num_bss; 535 hapd_iface->bss = os_calloc(conf->num_bss, 536 sizeof(struct hostapd_data *)); 537 if (hapd_iface->bss == NULL) { 538 wpa_supplicant_ap_deinit(wpa_s); 539 return -1; 540 } 541 542 for (i = 0; i < conf->num_bss; i++) { 543 hapd_iface->bss[i] = 544 hostapd_alloc_bss_data(hapd_iface, conf, 545 &conf->bss[i]); 546 if (hapd_iface->bss[i] == NULL) { 547 wpa_supplicant_ap_deinit(wpa_s); 548 return -1; 549 } 550 551 hapd_iface->bss[i]->msg_ctx = wpa_s; 552 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 553 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 554 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 555 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 556 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 557 hostapd_register_probereq_cb(hapd_iface->bss[i], 558 ap_probe_req_rx, wpa_s); 559 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 560 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 561 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 562 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 563 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 564 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 565 #ifdef CONFIG_P2P 566 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 567 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 568 ssid); 569 #endif /* CONFIG_P2P */ 570 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 571 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 572 } 573 574 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 575 hapd_iface->bss[0]->driver = wpa_s->driver; 576 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 577 578 wpa_s->current_ssid = ssid; 579 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 580 wpa_s->assoc_freq = ssid->frequency; 581 582 if (hostapd_setup_interface(wpa_s->ap_iface)) { 583 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 584 wpa_supplicant_ap_deinit(wpa_s); 585 return -1; 586 } 587 588 return 0; 589 } 590 591 592 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 593 { 594 #ifdef CONFIG_WPS 595 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 596 #endif /* CONFIG_WPS */ 597 598 if (wpa_s->ap_iface == NULL) 599 return; 600 601 wpa_s->current_ssid = NULL; 602 wpa_s->assoc_freq = 0; 603 #ifdef CONFIG_P2P 604 if (wpa_s->ap_iface->bss) 605 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 606 wpas_p2p_group_deinit(wpa_s); 607 #endif /* CONFIG_P2P */ 608 hostapd_interface_deinit(wpa_s->ap_iface); 609 hostapd_interface_free(wpa_s->ap_iface); 610 wpa_s->ap_iface = NULL; 611 wpa_drv_deinit_ap(wpa_s); 612 } 613 614 615 void ap_tx_status(void *ctx, const u8 *addr, 616 const u8 *buf, size_t len, int ack) 617 { 618 #ifdef NEED_AP_MLME 619 struct wpa_supplicant *wpa_s = ctx; 620 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 621 #endif /* NEED_AP_MLME */ 622 } 623 624 625 void ap_eapol_tx_status(void *ctx, const u8 *dst, 626 const u8 *data, size_t len, int ack) 627 { 628 #ifdef NEED_AP_MLME 629 struct wpa_supplicant *wpa_s = ctx; 630 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 631 #endif /* NEED_AP_MLME */ 632 } 633 634 635 void ap_client_poll_ok(void *ctx, const u8 *addr) 636 { 637 #ifdef NEED_AP_MLME 638 struct wpa_supplicant *wpa_s = ctx; 639 if (wpa_s->ap_iface) 640 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 641 #endif /* NEED_AP_MLME */ 642 } 643 644 645 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 646 { 647 #ifdef NEED_AP_MLME 648 struct wpa_supplicant *wpa_s = ctx; 649 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 650 #endif /* NEED_AP_MLME */ 651 } 652 653 654 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 655 { 656 #ifdef NEED_AP_MLME 657 struct wpa_supplicant *wpa_s = ctx; 658 struct hostapd_frame_info fi; 659 os_memset(&fi, 0, sizeof(fi)); 660 fi.datarate = rx_mgmt->datarate; 661 fi.ssi_signal = rx_mgmt->ssi_signal; 662 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 663 rx_mgmt->frame_len, &fi); 664 #endif /* NEED_AP_MLME */ 665 } 666 667 668 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 669 { 670 #ifdef NEED_AP_MLME 671 struct wpa_supplicant *wpa_s = ctx; 672 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 673 #endif /* NEED_AP_MLME */ 674 } 675 676 677 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 678 const u8 *src_addr, const u8 *buf, size_t len) 679 { 680 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 681 } 682 683 684 #ifdef CONFIG_WPS 685 686 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 687 const u8 *p2p_dev_addr) 688 { 689 if (!wpa_s->ap_iface) 690 return -1; 691 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 692 p2p_dev_addr); 693 } 694 695 696 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 697 { 698 struct wps_registrar *reg; 699 int reg_sel = 0, wps_sta = 0; 700 701 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 702 return -1; 703 704 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 705 reg_sel = wps_registrar_wps_cancel(reg); 706 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 707 ap_sta_wps_cancel, NULL); 708 709 if (!reg_sel && !wps_sta) { 710 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 711 "time"); 712 return -1; 713 } 714 715 /* 716 * There are 2 cases to return wps cancel as success: 717 * 1. When wps cancel was initiated but no connection has been 718 * established with client yet. 719 * 2. Client is in the middle of exchanging WPS messages. 720 */ 721 722 return 0; 723 } 724 725 726 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 727 const char *pin, char *buf, size_t buflen, 728 int timeout) 729 { 730 int ret, ret_len = 0; 731 732 if (!wpa_s->ap_iface) 733 return -1; 734 735 if (pin == NULL) { 736 unsigned int rpin = wps_generate_pin(); 737 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 738 pin = buf; 739 } else 740 ret_len = os_snprintf(buf, buflen, "%s", pin); 741 742 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 743 timeout); 744 if (ret) 745 return -1; 746 return ret_len; 747 } 748 749 750 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 751 { 752 struct wpa_supplicant *wpa_s = eloop_data; 753 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 754 wpas_wps_ap_pin_disable(wpa_s); 755 } 756 757 758 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 759 { 760 struct hostapd_data *hapd; 761 762 if (wpa_s->ap_iface == NULL) 763 return; 764 hapd = wpa_s->ap_iface->bss[0]; 765 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 766 hapd->ap_pin_failures = 0; 767 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 768 if (timeout > 0) 769 eloop_register_timeout(timeout, 0, 770 wpas_wps_ap_pin_timeout, wpa_s, NULL); 771 } 772 773 774 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 775 { 776 struct hostapd_data *hapd; 777 778 if (wpa_s->ap_iface == NULL) 779 return; 780 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 781 hapd = wpa_s->ap_iface->bss[0]; 782 os_free(hapd->conf->ap_pin); 783 hapd->conf->ap_pin = NULL; 784 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 785 } 786 787 788 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 789 { 790 struct hostapd_data *hapd; 791 unsigned int pin; 792 char pin_txt[9]; 793 794 if (wpa_s->ap_iface == NULL) 795 return NULL; 796 hapd = wpa_s->ap_iface->bss[0]; 797 pin = wps_generate_pin(); 798 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 799 os_free(hapd->conf->ap_pin); 800 hapd->conf->ap_pin = os_strdup(pin_txt); 801 if (hapd->conf->ap_pin == NULL) 802 return NULL; 803 wpas_wps_ap_pin_enable(wpa_s, timeout); 804 805 return hapd->conf->ap_pin; 806 } 807 808 809 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 810 { 811 struct hostapd_data *hapd; 812 if (wpa_s->ap_iface == NULL) 813 return NULL; 814 hapd = wpa_s->ap_iface->bss[0]; 815 return hapd->conf->ap_pin; 816 } 817 818 819 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 820 int timeout) 821 { 822 struct hostapd_data *hapd; 823 char pin_txt[9]; 824 int ret; 825 826 if (wpa_s->ap_iface == NULL) 827 return -1; 828 hapd = wpa_s->ap_iface->bss[0]; 829 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 830 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 831 return -1; 832 os_free(hapd->conf->ap_pin); 833 hapd->conf->ap_pin = os_strdup(pin_txt); 834 if (hapd->conf->ap_pin == NULL) 835 return -1; 836 wpas_wps_ap_pin_enable(wpa_s, timeout); 837 838 return 0; 839 } 840 841 842 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 843 { 844 struct hostapd_data *hapd; 845 846 if (wpa_s->ap_iface == NULL) 847 return; 848 hapd = wpa_s->ap_iface->bss[0]; 849 850 /* 851 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 852 * PIN if this happens multiple times to slow down brute force attacks. 853 */ 854 hapd->ap_pin_failures++; 855 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 856 hapd->ap_pin_failures); 857 if (hapd->ap_pin_failures < 3) 858 return; 859 860 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 861 hapd->ap_pin_failures = 0; 862 os_free(hapd->conf->ap_pin); 863 hapd->conf->ap_pin = NULL; 864 } 865 866 867 #ifdef CONFIG_WPS_NFC 868 869 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 870 int ndef) 871 { 872 struct hostapd_data *hapd; 873 874 if (wpa_s->ap_iface == NULL) 875 return NULL; 876 hapd = wpa_s->ap_iface->bss[0]; 877 return hostapd_wps_nfc_config_token(hapd, ndef); 878 } 879 880 881 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 882 int ndef) 883 { 884 struct hostapd_data *hapd; 885 886 if (wpa_s->ap_iface == NULL) 887 return NULL; 888 hapd = wpa_s->ap_iface->bss[0]; 889 return hostapd_wps_nfc_hs_cr(hapd, ndef); 890 } 891 892 #endif /* CONFIG_WPS_NFC */ 893 894 #endif /* CONFIG_WPS */ 895 896 897 #ifdef CONFIG_CTRL_IFACE 898 899 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 900 char *buf, size_t buflen) 901 { 902 if (wpa_s->ap_iface == NULL) 903 return -1; 904 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 905 buf, buflen); 906 } 907 908 909 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 910 char *buf, size_t buflen) 911 { 912 if (wpa_s->ap_iface == NULL) 913 return -1; 914 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 915 buf, buflen); 916 } 917 918 919 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 920 char *buf, size_t buflen) 921 { 922 if (wpa_s->ap_iface == NULL) 923 return -1; 924 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 925 buf, buflen); 926 } 927 928 929 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 930 const char *txtaddr) 931 { 932 if (wpa_s->ap_iface == NULL) 933 return -1; 934 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 935 txtaddr); 936 } 937 938 939 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 940 const char *txtaddr) 941 { 942 if (wpa_s->ap_iface == NULL) 943 return -1; 944 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 945 txtaddr); 946 } 947 948 949 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 950 size_t buflen, int verbose) 951 { 952 char *pos = buf, *end = buf + buflen; 953 int ret; 954 struct hostapd_bss_config *conf; 955 956 if (wpa_s->ap_iface == NULL) 957 return -1; 958 959 conf = wpa_s->ap_iface->bss[0]->conf; 960 if (conf->wpa == 0) 961 return 0; 962 963 ret = os_snprintf(pos, end - pos, 964 "pairwise_cipher=%s\n" 965 "group_cipher=%s\n" 966 "key_mgmt=%s\n", 967 wpa_cipher_txt(conf->rsn_pairwise), 968 wpa_cipher_txt(conf->wpa_group), 969 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 970 conf->wpa)); 971 if (ret < 0 || ret >= end - pos) 972 return pos - buf; 973 pos += ret; 974 return pos - buf; 975 } 976 977 #endif /* CONFIG_CTRL_IFACE */ 978 979 980 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 981 { 982 struct hostapd_iface *iface = wpa_s->ap_iface; 983 struct wpa_ssid *ssid = wpa_s->current_ssid; 984 struct hostapd_data *hapd; 985 986 if (ssid == NULL || wpa_s->ap_iface == NULL || 987 ssid->mode == WPAS_MODE_INFRA || 988 ssid->mode == WPAS_MODE_IBSS) 989 return -1; 990 991 #ifdef CONFIG_P2P 992 if (ssid->mode == WPAS_MODE_P2P_GO) 993 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 994 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 995 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 996 P2P_GROUP_FORMATION; 997 #endif /* CONFIG_P2P */ 998 999 hapd = iface->bss[0]; 1000 if (hapd->drv_priv == NULL) 1001 return -1; 1002 ieee802_11_set_beacons(iface); 1003 hostapd_set_ap_wps_ie(hapd); 1004 1005 return 0; 1006 } 1007 1008 1009 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 1010 int offset) 1011 { 1012 if (!wpa_s->ap_iface) 1013 return; 1014 1015 wpa_s->assoc_freq = freq; 1016 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset); 1017 } 1018 1019 1020 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 1021 const u8 *addr) 1022 { 1023 struct hostapd_data *hapd; 1024 struct hostapd_bss_config *conf; 1025 1026 if (!wpa_s->ap_iface) 1027 return -1; 1028 1029 if (addr) 1030 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1031 MAC2STR(addr)); 1032 else 1033 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1034 1035 hapd = wpa_s->ap_iface->bss[0]; 1036 conf = hapd->conf; 1037 1038 os_free(conf->accept_mac); 1039 conf->accept_mac = NULL; 1040 conf->num_accept_mac = 0; 1041 os_free(conf->deny_mac); 1042 conf->deny_mac = NULL; 1043 conf->num_deny_mac = 0; 1044 1045 if (addr == NULL) { 1046 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1047 return 0; 1048 } 1049 1050 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1051 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1052 if (conf->accept_mac == NULL) 1053 return -1; 1054 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1055 conf->num_accept_mac = 1; 1056 1057 return 0; 1058 } 1059
