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 int pairwise; 50 51 conf->driver = wpa_s->driver; 52 53 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface)); 54 55 if (ssid->frequency == 0) { 56 /* default channel 11 */ 57 conf->hw_mode = HOSTAPD_MODE_IEEE80211G; 58 conf->channel = 11; 59 } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) { 60 conf->hw_mode = HOSTAPD_MODE_IEEE80211G; 61 conf->channel = (ssid->frequency - 2407) / 5; 62 } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) || 63 (ssid->frequency >= 5745 && ssid->frequency <= 5825)) { 64 conf->hw_mode = HOSTAPD_MODE_IEEE80211A; 65 conf->channel = (ssid->frequency - 5000) / 5; 66 } else { 67 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", 68 ssid->frequency); 69 return -1; 70 } 71 72 /* TODO: enable HT40 if driver supports it; 73 * drop to 11b if driver does not support 11g */ 74 75 #ifdef CONFIG_IEEE80211N 76 /* 77 * Enable HT20 if the driver supports it, by setting conf->ieee80211n 78 * and a mask of allowed capabilities within conf->ht_capab. 79 * Using default config settings for: conf->ht_op_mode_fixed, 80 * conf->secondary_channel, conf->require_ht 81 */ 82 if (wpa_s->hw.modes) { 83 struct hostapd_hw_modes *mode = NULL; 84 int i, no_ht = 0; 85 for (i = 0; i < wpa_s->hw.num_modes; i++) { 86 if (wpa_s->hw.modes[i].mode == conf->hw_mode) { 87 mode = &wpa_s->hw.modes[i]; 88 break; 89 } 90 } 91 92 #ifdef CONFIG_HT_OVERRIDES 93 if (ssid->disable_ht) { 94 conf->ieee80211n = 0; 95 conf->ht_capab = 0; 96 no_ht = 1; 97 } 98 #endif /* CONFIG_HT_OVERRIDES */ 99 100 if (!no_ht && mode && mode->ht_capab) { 101 conf->ieee80211n = 1; 102 #ifdef CONFIG_P2P 103 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && 104 (mode->ht_capab & 105 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && 106 ssid->ht40) 107 conf->secondary_channel = 108 wpas_p2p_get_ht40_mode(wpa_s, mode, 109 conf->channel); 110 if (conf->secondary_channel) 111 conf->ht_capab |= 112 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET; 113 #endif /* CONFIG_P2P */ 114 115 /* 116 * white-list capabilities that won't cause issues 117 * to connecting stations, while leaving the current 118 * capabilities intact (currently disabled SMPS). 119 */ 120 conf->ht_capab |= mode->ht_capab & 121 (HT_CAP_INFO_GREEN_FIELD | 122 HT_CAP_INFO_SHORT_GI20MHZ | 123 HT_CAP_INFO_SHORT_GI40MHZ | 124 HT_CAP_INFO_RX_STBC_MASK | 125 HT_CAP_INFO_MAX_AMSDU_SIZE); 126 } 127 } 128 #endif /* CONFIG_IEEE80211N */ 129 130 #ifdef CONFIG_P2P 131 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) { 132 /* Remove 802.11b rates from supported and basic rate sets */ 133 int *list = os_malloc(4 * sizeof(int)); 134 if (list) { 135 list[0] = 60; 136 list[1] = 120; 137 list[2] = 240; 138 list[3] = -1; 139 } 140 conf->basic_rates = list; 141 142 list = os_malloc(9 * sizeof(int)); 143 if (list) { 144 list[0] = 60; 145 list[1] = 90; 146 list[2] = 120; 147 list[3] = 180; 148 list[4] = 240; 149 list[5] = 360; 150 list[6] = 480; 151 list[7] = 540; 152 list[8] = -1; 153 } 154 conf->supported_rates = list; 155 } 156 157 bss->isolate = !wpa_s->conf->p2p_intra_bss; 158 #endif /* CONFIG_P2P */ 159 160 if (ssid->ssid_len == 0) { 161 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 162 return -1; 163 } 164 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); 165 bss->ssid.ssid_len = ssid->ssid_len; 166 bss->ssid.ssid_set = 1; 167 168 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid; 169 170 if (ssid->auth_alg) 171 bss->auth_algs = ssid->auth_alg; 172 173 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) 174 bss->wpa = ssid->proto; 175 bss->wpa_key_mgmt = ssid->key_mgmt; 176 bss->wpa_pairwise = ssid->pairwise_cipher; 177 if (ssid->passphrase) { 178 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); 179 } else if (ssid->psk_set) { 180 os_free(bss->ssid.wpa_psk); 181 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 182 if (bss->ssid.wpa_psk == NULL) 183 return -1; 184 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); 185 bss->ssid.wpa_psk->group = 1; 186 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] || 187 ssid->wep_key_len[2] || ssid->wep_key_len[3]) { 188 struct hostapd_wep_keys *wep = &bss->ssid.wep; 189 int i; 190 for (i = 0; i < NUM_WEP_KEYS; i++) { 191 if (ssid->wep_key_len[i] == 0) 192 continue; 193 wep->key[i] = os_malloc(ssid->wep_key_len[i]); 194 if (wep->key[i] == NULL) 195 return -1; 196 os_memcpy(wep->key[i], ssid->wep_key[i], 197 ssid->wep_key_len[i]); 198 wep->len[i] = ssid->wep_key_len[i]; 199 } 200 wep->idx = ssid->wep_tx_keyidx; 201 wep->keys_set = 1; 202 } 203 204 if (ssid->ap_max_inactivity) 205 bss->ap_max_inactivity = ssid->ap_max_inactivity; 206 207 if (ssid->dtim_period) 208 bss->dtim_period = ssid->dtim_period; 209 210 /* Select group cipher based on the enabled pairwise cipher suites */ 211 pairwise = 0; 212 if (bss->wpa & 1) 213 pairwise |= bss->wpa_pairwise; 214 if (bss->wpa & 2) { 215 if (bss->rsn_pairwise == 0) 216 bss->rsn_pairwise = bss->wpa_pairwise; 217 pairwise |= bss->rsn_pairwise; 218 } 219 if (pairwise & WPA_CIPHER_TKIP) 220 bss->wpa_group = WPA_CIPHER_TKIP; 221 else if ((pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) == 222 WPA_CIPHER_GCMP) 223 bss->wpa_group = WPA_CIPHER_GCMP; 224 else 225 bss->wpa_group = WPA_CIPHER_CCMP; 226 227 if (bss->wpa && bss->ieee802_1x) 228 bss->ssid.security_policy = SECURITY_WPA; 229 else if (bss->wpa) 230 bss->ssid.security_policy = SECURITY_WPA_PSK; 231 else if (bss->ieee802_1x) { 232 int cipher = WPA_CIPHER_NONE; 233 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 234 bss->ssid.wep.default_len = bss->default_wep_key_len; 235 if (bss->default_wep_key_len) 236 cipher = bss->default_wep_key_len >= 13 ? 237 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 238 bss->wpa_group = cipher; 239 bss->wpa_pairwise = cipher; 240 bss->rsn_pairwise = cipher; 241 } else if (bss->ssid.wep.keys_set) { 242 int cipher = WPA_CIPHER_WEP40; 243 if (bss->ssid.wep.len[0] >= 13) 244 cipher = WPA_CIPHER_WEP104; 245 bss->ssid.security_policy = SECURITY_STATIC_WEP; 246 bss->wpa_group = cipher; 247 bss->wpa_pairwise = cipher; 248 bss->rsn_pairwise = cipher; 249 } else { 250 bss->ssid.security_policy = SECURITY_PLAINTEXT; 251 bss->wpa_group = WPA_CIPHER_NONE; 252 bss->wpa_pairwise = WPA_CIPHER_NONE; 253 bss->rsn_pairwise = WPA_CIPHER_NONE; 254 } 255 256 #ifdef CONFIG_WPS 257 /* 258 * Enable WPS by default for open and WPA/WPA2-Personal network, but 259 * require user interaction to actually use it. Only the internal 260 * Registrar is supported. 261 */ 262 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 263 bss->ssid.security_policy != SECURITY_PLAINTEXT) 264 goto no_wps; 265 #ifdef CONFIG_WPS2 266 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 267 (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 268 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 269 * configuration */ 270 #endif /* CONFIG_WPS2 */ 271 bss->eap_server = 1; 272 273 if (!ssid->ignore_broadcast_ssid) 274 bss->wps_state = 2; 275 276 bss->ap_setup_locked = 2; 277 if (wpa_s->conf->config_methods) 278 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 279 os_memcpy(bss->device_type, wpa_s->conf->device_type, 280 WPS_DEV_TYPE_LEN); 281 if (wpa_s->conf->device_name) { 282 bss->device_name = os_strdup(wpa_s->conf->device_name); 283 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 284 } 285 if (wpa_s->conf->manufacturer) 286 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 287 if (wpa_s->conf->model_name) 288 bss->model_name = os_strdup(wpa_s->conf->model_name); 289 if (wpa_s->conf->model_number) 290 bss->model_number = os_strdup(wpa_s->conf->model_number); 291 if (wpa_s->conf->serial_number) 292 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 293 if (is_nil_uuid(wpa_s->conf->uuid)) 294 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 295 else 296 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 297 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 298 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 299 no_wps: 300 #endif /* CONFIG_WPS */ 301 302 if (wpa_s->max_stations && 303 wpa_s->max_stations < wpa_s->conf->max_num_sta) 304 bss->max_num_sta = wpa_s->max_stations; 305 else 306 bss->max_num_sta = wpa_s->conf->max_num_sta; 307 308 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 309 310 return 0; 311 } 312 313 314 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 315 { 316 #ifdef CONFIG_P2P 317 struct wpa_supplicant *wpa_s = ctx; 318 const struct ieee80211_mgmt *mgmt; 319 size_t hdr_len; 320 321 mgmt = (const struct ieee80211_mgmt *) buf; 322 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 323 if (hdr_len > len) 324 return; 325 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 326 mgmt->u.action.category, 327 &mgmt->u.action.u.vs_public_action.action, 328 len - hdr_len, freq); 329 #endif /* CONFIG_P2P */ 330 } 331 332 333 static void ap_wps_event_cb(void *ctx, enum wps_event event, 334 union wps_event_data *data) 335 { 336 #ifdef CONFIG_P2P 337 struct wpa_supplicant *wpa_s = ctx; 338 339 if (event == WPS_EV_FAIL) { 340 struct wps_event_fail *fail = &data->fail; 341 342 if (wpa_s->parent && wpa_s->parent != wpa_s && 343 wpa_s == wpa_s->global->p2p_group_formation) { 344 /* 345 * src/ap/wps_hostapd.c has already sent this on the 346 * main interface, so only send on the parent interface 347 * here if needed. 348 */ 349 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 350 "msg=%d config_error=%d", 351 fail->msg, fail->config_error); 352 } 353 wpas_p2p_wps_failed(wpa_s, fail); 354 } 355 #endif /* CONFIG_P2P */ 356 } 357 358 359 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 360 int authorized, const u8 *p2p_dev_addr) 361 { 362 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 363 } 364 365 366 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 367 { 368 #ifdef CONFIG_P2P 369 struct wpa_supplicant *wpa_s = ctx; 370 const struct ieee80211_mgmt *mgmt; 371 size_t hdr_len; 372 373 mgmt = (const struct ieee80211_mgmt *) buf; 374 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 375 if (hdr_len > len) 376 return -1; 377 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 378 mgmt->u.action.category, 379 &mgmt->u.action.u.vs_public_action.action, 380 len - hdr_len, freq); 381 #endif /* CONFIG_P2P */ 382 return 0; 383 } 384 385 386 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 387 const u8 *bssid, const u8 *ie, size_t ie_len, 388 int ssi_signal) 389 { 390 #ifdef CONFIG_P2P 391 struct wpa_supplicant *wpa_s = ctx; 392 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 393 ssi_signal); 394 #else /* CONFIG_P2P */ 395 return 0; 396 #endif /* CONFIG_P2P */ 397 } 398 399 400 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 401 const u8 *uuid_e) 402 { 403 #ifdef CONFIG_P2P 404 struct wpa_supplicant *wpa_s = ctx; 405 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 406 #endif /* CONFIG_P2P */ 407 } 408 409 410 static void wpas_ap_configured_cb(void *ctx) 411 { 412 struct wpa_supplicant *wpa_s = ctx; 413 414 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 415 416 if (wpa_s->ap_configured_cb) 417 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 418 wpa_s->ap_configured_cb_data); 419 } 420 421 422 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 423 struct wpa_ssid *ssid) 424 { 425 struct wpa_driver_associate_params params; 426 struct hostapd_iface *hapd_iface; 427 struct hostapd_config *conf; 428 size_t i; 429 430 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 431 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 432 return -1; 433 } 434 435 wpa_supplicant_ap_deinit(wpa_s); 436 437 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 438 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 439 440 os_memset(¶ms, 0, sizeof(params)); 441 params.ssid = ssid->ssid; 442 params.ssid_len = ssid->ssid_len; 443 switch (ssid->mode) { 444 case WPAS_MODE_INFRA: 445 params.mode = IEEE80211_MODE_INFRA; 446 break; 447 case WPAS_MODE_IBSS: 448 params.mode = IEEE80211_MODE_IBSS; 449 break; 450 case WPAS_MODE_AP: 451 case WPAS_MODE_P2P_GO: 452 case WPAS_MODE_P2P_GROUP_FORMATION: 453 params.mode = IEEE80211_MODE_AP; 454 break; 455 } 456 params.freq = ssid->frequency; 457 458 params.wpa_proto = ssid->proto; 459 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 460 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 461 else 462 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 463 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 464 465 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 466 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; 467 else if (ssid->pairwise_cipher & WPA_CIPHER_GCMP) 468 wpa_s->pairwise_cipher = WPA_CIPHER_GCMP; 469 else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP) 470 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; 471 else if (ssid->pairwise_cipher & WPA_CIPHER_NONE) 472 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 473 else { 474 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 475 "cipher."); 476 return -1; 477 } 478 params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher); 479 params.group_suite = params.pairwise_suite; 480 481 #ifdef CONFIG_P2P 482 if (ssid->mode == WPAS_MODE_P2P_GO || 483 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 484 params.p2p = 1; 485 #endif /* CONFIG_P2P */ 486 487 if (wpa_s->parent->set_ap_uapsd) 488 params.uapsd = wpa_s->parent->ap_uapsd; 489 else 490 params.uapsd = -1; 491 492 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 493 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 494 return -1; 495 } 496 497 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 498 if (hapd_iface == NULL) 499 return -1; 500 hapd_iface->owner = wpa_s; 501 hapd_iface->drv_flags = wpa_s->drv_flags; 502 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 503 504 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 505 if (conf == NULL) { 506 wpa_supplicant_ap_deinit(wpa_s); 507 return -1; 508 } 509 510 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 511 wpa_s->conf->wmm_ac_params, 512 sizeof(wpa_s->conf->wmm_ac_params)); 513 514 if (params.uapsd > 0) { 515 conf->bss->wmm_enabled = 1; 516 conf->bss->wmm_uapsd = 1; 517 } 518 519 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 520 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 521 wpa_supplicant_ap_deinit(wpa_s); 522 return -1; 523 } 524 525 #ifdef CONFIG_P2P 526 if (ssid->mode == WPAS_MODE_P2P_GO) 527 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 528 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 529 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 530 P2P_GROUP_FORMATION; 531 #endif /* CONFIG_P2P */ 532 533 hapd_iface->num_bss = conf->num_bss; 534 hapd_iface->bss = os_calloc(conf->num_bss, 535 sizeof(struct hostapd_data *)); 536 if (hapd_iface->bss == NULL) { 537 wpa_supplicant_ap_deinit(wpa_s); 538 return -1; 539 } 540 541 for (i = 0; i < conf->num_bss; i++) { 542 hapd_iface->bss[i] = 543 hostapd_alloc_bss_data(hapd_iface, conf, 544 &conf->bss[i]); 545 if (hapd_iface->bss[i] == NULL) { 546 wpa_supplicant_ap_deinit(wpa_s); 547 return -1; 548 } 549 550 hapd_iface->bss[i]->msg_ctx = wpa_s; 551 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 552 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 553 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 554 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 555 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 556 hostapd_register_probereq_cb(hapd_iface->bss[i], 557 ap_probe_req_rx, wpa_s); 558 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 559 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 560 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 561 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 562 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 563 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 564 #ifdef CONFIG_P2P 565 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 566 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 567 ssid); 568 #endif /* CONFIG_P2P */ 569 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 570 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 571 } 572 573 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 574 hapd_iface->bss[0]->driver = wpa_s->driver; 575 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 576 577 wpa_s->current_ssid = ssid; 578 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 579 wpa_s->assoc_freq = ssid->frequency; 580 581 if (hostapd_setup_interface(wpa_s->ap_iface)) { 582 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 583 wpa_supplicant_ap_deinit(wpa_s); 584 return -1; 585 } 586 587 return 0; 588 } 589 590 591 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 592 { 593 #ifdef CONFIG_WPS 594 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 595 #endif /* CONFIG_WPS */ 596 597 if (wpa_s->ap_iface == NULL) 598 return; 599 600 wpa_s->current_ssid = NULL; 601 wpa_s->assoc_freq = 0; 602 wpa_s->reassociated_connection = 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 { 729 int ret, ret_len = 0; 730 731 if (!wpa_s->ap_iface) 732 return -1; 733 734 if (pin == NULL) { 735 unsigned int rpin = wps_generate_pin(); 736 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 737 pin = buf; 738 } else 739 ret_len = os_snprintf(buf, buflen, "%s", pin); 740 741 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 742 0); 743 if (ret) 744 return -1; 745 return ret_len; 746 } 747 748 749 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 750 { 751 struct wpa_supplicant *wpa_s = eloop_data; 752 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 753 wpas_wps_ap_pin_disable(wpa_s); 754 } 755 756 757 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 758 { 759 struct hostapd_data *hapd; 760 761 if (wpa_s->ap_iface == NULL) 762 return; 763 hapd = wpa_s->ap_iface->bss[0]; 764 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 765 hapd->ap_pin_failures = 0; 766 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 767 if (timeout > 0) 768 eloop_register_timeout(timeout, 0, 769 wpas_wps_ap_pin_timeout, wpa_s, NULL); 770 } 771 772 773 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 774 { 775 struct hostapd_data *hapd; 776 777 if (wpa_s->ap_iface == NULL) 778 return; 779 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 780 hapd = wpa_s->ap_iface->bss[0]; 781 os_free(hapd->conf->ap_pin); 782 hapd->conf->ap_pin = NULL; 783 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 784 } 785 786 787 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 788 { 789 struct hostapd_data *hapd; 790 unsigned int pin; 791 char pin_txt[9]; 792 793 if (wpa_s->ap_iface == NULL) 794 return NULL; 795 hapd = wpa_s->ap_iface->bss[0]; 796 pin = wps_generate_pin(); 797 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 798 os_free(hapd->conf->ap_pin); 799 hapd->conf->ap_pin = os_strdup(pin_txt); 800 if (hapd->conf->ap_pin == NULL) 801 return NULL; 802 wpas_wps_ap_pin_enable(wpa_s, timeout); 803 804 return hapd->conf->ap_pin; 805 } 806 807 808 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 809 { 810 struct hostapd_data *hapd; 811 if (wpa_s->ap_iface == NULL) 812 return NULL; 813 hapd = wpa_s->ap_iface->bss[0]; 814 return hapd->conf->ap_pin; 815 } 816 817 818 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 819 int timeout) 820 { 821 struct hostapd_data *hapd; 822 char pin_txt[9]; 823 int ret; 824 825 if (wpa_s->ap_iface == NULL) 826 return -1; 827 hapd = wpa_s->ap_iface->bss[0]; 828 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 829 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 830 return -1; 831 os_free(hapd->conf->ap_pin); 832 hapd->conf->ap_pin = os_strdup(pin_txt); 833 if (hapd->conf->ap_pin == NULL) 834 return -1; 835 wpas_wps_ap_pin_enable(wpa_s, timeout); 836 837 return 0; 838 } 839 840 841 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 842 { 843 struct hostapd_data *hapd; 844 845 if (wpa_s->ap_iface == NULL) 846 return; 847 hapd = wpa_s->ap_iface->bss[0]; 848 849 /* 850 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 851 * PIN if this happens multiple times to slow down brute force attacks. 852 */ 853 hapd->ap_pin_failures++; 854 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 855 hapd->ap_pin_failures); 856 if (hapd->ap_pin_failures < 3) 857 return; 858 859 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 860 hapd->ap_pin_failures = 0; 861 os_free(hapd->conf->ap_pin); 862 hapd->conf->ap_pin = NULL; 863 } 864 865 #endif /* CONFIG_WPS */ 866 867 868 #ifdef CONFIG_CTRL_IFACE 869 870 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 871 char *buf, size_t buflen) 872 { 873 if (wpa_s->ap_iface == NULL) 874 return -1; 875 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 876 buf, buflen); 877 } 878 879 880 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 881 char *buf, size_t buflen) 882 { 883 if (wpa_s->ap_iface == NULL) 884 return -1; 885 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 886 buf, buflen); 887 } 888 889 890 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 891 char *buf, size_t buflen) 892 { 893 if (wpa_s->ap_iface == NULL) 894 return -1; 895 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 896 buf, buflen); 897 } 898 899 900 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 901 const char *txtaddr) 902 { 903 if (wpa_s->ap_iface == NULL) 904 return -1; 905 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 906 txtaddr); 907 } 908 909 910 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 911 const char *txtaddr) 912 { 913 if (wpa_s->ap_iface == NULL) 914 return -1; 915 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 916 txtaddr); 917 } 918 919 920 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 921 size_t buflen, int verbose) 922 { 923 char *pos = buf, *end = buf + buflen; 924 int ret; 925 struct hostapd_bss_config *conf; 926 927 if (wpa_s->ap_iface == NULL) 928 return -1; 929 930 conf = wpa_s->ap_iface->bss[0]->conf; 931 if (conf->wpa == 0) 932 return 0; 933 934 ret = os_snprintf(pos, end - pos, 935 "pairwise_cipher=%s\n" 936 "group_cipher=%s\n" 937 "key_mgmt=%s\n", 938 wpa_cipher_txt(conf->rsn_pairwise), 939 wpa_cipher_txt(conf->wpa_group), 940 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 941 conf->wpa)); 942 if (ret < 0 || ret >= end - pos) 943 return pos - buf; 944 pos += ret; 945 return pos - buf; 946 } 947 948 #endif /* CONFIG_CTRL_IFACE */ 949 950 951 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 952 { 953 struct hostapd_iface *iface = wpa_s->ap_iface; 954 struct wpa_ssid *ssid = wpa_s->current_ssid; 955 struct hostapd_data *hapd; 956 957 if (ssid == NULL || wpa_s->ap_iface == NULL || 958 ssid->mode == WPAS_MODE_INFRA || 959 ssid->mode == WPAS_MODE_IBSS) 960 return -1; 961 962 #ifdef CONFIG_P2P 963 if (ssid->mode == WPAS_MODE_P2P_GO) 964 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 965 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 966 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 967 P2P_GROUP_FORMATION; 968 #endif /* CONFIG_P2P */ 969 970 hapd = iface->bss[0]; 971 if (hapd->drv_priv == NULL) 972 return -1; 973 ieee802_11_set_beacons(iface); 974 hostapd_set_ap_wps_ie(hapd); 975 976 return 0; 977 } 978 979 980 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 981 int offset) 982 { 983 if (!wpa_s->ap_iface) 984 return; 985 986 wpa_s->assoc_freq = freq; 987 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset); 988 } 989 990 991 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 992 const u8 *addr) 993 { 994 struct hostapd_data *hapd; 995 struct hostapd_bss_config *conf; 996 997 if (!wpa_s->ap_iface) 998 return -1; 999 1000 if (addr) 1001 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1002 MAC2STR(addr)); 1003 else 1004 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1005 1006 hapd = wpa_s->ap_iface->bss[0]; 1007 conf = hapd->conf; 1008 1009 os_free(conf->accept_mac); 1010 conf->accept_mac = NULL; 1011 conf->num_accept_mac = 0; 1012 os_free(conf->deny_mac); 1013 conf->deny_mac = NULL; 1014 conf->num_deny_mac = 0; 1015 1016 if (addr == NULL) { 1017 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1018 return 0; 1019 } 1020 1021 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1022 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1023 if (conf->accept_mac == NULL) 1024 return -1; 1025 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1026 conf->num_accept_mac = 1; 1027 1028 return 0; 1029 } 1030
