1 /* 2 * WPA Supplicant - Basic AP mode support routines 3 * Copyright (c) 2003-2009, Jouni Malinen <j@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 if (ssid->frequency >= 56160 + 2160 * 1 && 67 ssid->frequency <= 56160 + 2160 * 4) { 68 conf->hw_mode = HOSTAPD_MODE_IEEE80211AD; 69 conf->channel = (ssid->frequency - 56160) / 2160; 70 } else { 71 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", 72 ssid->frequency); 73 return -1; 74 } 75 76 /* TODO: enable HT40 if driver supports it; 77 * drop to 11b if driver does not support 11g */ 78 79 #ifdef CONFIG_IEEE80211N 80 /* 81 * Enable HT20 if the driver supports it, by setting conf->ieee80211n 82 * and a mask of allowed capabilities within conf->ht_capab. 83 * Using default config settings for: conf->ht_op_mode_fixed, 84 * conf->secondary_channel, conf->require_ht 85 */ 86 if (wpa_s->hw.modes) { 87 struct hostapd_hw_modes *mode = NULL; 88 int i, no_ht = 0; 89 for (i = 0; i < wpa_s->hw.num_modes; i++) { 90 if (wpa_s->hw.modes[i].mode == conf->hw_mode) { 91 mode = &wpa_s->hw.modes[i]; 92 break; 93 } 94 } 95 96 #ifdef CONFIG_HT_OVERRIDES 97 if (ssid->disable_ht) { 98 conf->ieee80211n = 0; 99 conf->ht_capab = 0; 100 no_ht = 1; 101 } 102 #endif /* CONFIG_HT_OVERRIDES */ 103 104 if (!no_ht && mode && mode->ht_capab) { 105 conf->ieee80211n = 1; 106 #ifdef CONFIG_P2P 107 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && 108 (mode->ht_capab & 109 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && 110 ssid->ht40) 111 conf->secondary_channel = 112 wpas_p2p_get_ht40_mode(wpa_s, mode, 113 conf->channel); 114 if (conf->secondary_channel) 115 conf->ht_capab |= 116 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET; 117 #endif /* CONFIG_P2P */ 118 119 /* 120 * white-list capabilities that won't cause issues 121 * to connecting stations, while leaving the current 122 * capabilities intact (currently disabled SMPS). 123 */ 124 conf->ht_capab |= mode->ht_capab & 125 (HT_CAP_INFO_GREEN_FIELD | 126 HT_CAP_INFO_SHORT_GI20MHZ | 127 HT_CAP_INFO_SHORT_GI40MHZ | 128 HT_CAP_INFO_RX_STBC_MASK | 129 HT_CAP_INFO_MAX_AMSDU_SIZE); 130 } 131 } 132 #endif /* CONFIG_IEEE80211N */ 133 134 #ifdef CONFIG_P2P 135 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) { 136 /* Remove 802.11b rates from supported and basic rate sets */ 137 int *list = os_malloc(4 * sizeof(int)); 138 if (list) { 139 list[0] = 60; 140 list[1] = 120; 141 list[2] = 240; 142 list[3] = -1; 143 } 144 conf->basic_rates = list; 145 146 list = os_malloc(9 * sizeof(int)); 147 if (list) { 148 list[0] = 60; 149 list[1] = 90; 150 list[2] = 120; 151 list[3] = 180; 152 list[4] = 240; 153 list[5] = 360; 154 list[6] = 480; 155 list[7] = 540; 156 list[8] = -1; 157 } 158 conf->supported_rates = list; 159 } 160 161 bss->isolate = !wpa_s->conf->p2p_intra_bss; 162 #endif /* CONFIG_P2P */ 163 164 if (ssid->ssid_len == 0) { 165 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 166 return -1; 167 } 168 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); 169 bss->ssid.ssid_len = ssid->ssid_len; 170 bss->ssid.ssid_set = 1; 171 172 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid; 173 174 if (ssid->auth_alg) 175 bss->auth_algs = ssid->auth_alg; 176 177 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) 178 bss->wpa = ssid->proto; 179 bss->wpa_key_mgmt = ssid->key_mgmt; 180 bss->wpa_pairwise = ssid->pairwise_cipher; 181 if (ssid->psk_set) { 182 os_free(bss->ssid.wpa_psk); 183 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 184 if (bss->ssid.wpa_psk == NULL) 185 return -1; 186 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); 187 bss->ssid.wpa_psk->group = 1; 188 } else if (ssid->passphrase) { 189 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); 190 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] || 191 ssid->wep_key_len[2] || ssid->wep_key_len[3]) { 192 struct hostapd_wep_keys *wep = &bss->ssid.wep; 193 int i; 194 for (i = 0; i < NUM_WEP_KEYS; i++) { 195 if (ssid->wep_key_len[i] == 0) 196 continue; 197 wep->key[i] = os_malloc(ssid->wep_key_len[i]); 198 if (wep->key[i] == NULL) 199 return -1; 200 os_memcpy(wep->key[i], ssid->wep_key[i], 201 ssid->wep_key_len[i]); 202 wep->len[i] = ssid->wep_key_len[i]; 203 } 204 wep->idx = ssid->wep_tx_keyidx; 205 wep->keys_set = 1; 206 } 207 208 if (ssid->ap_max_inactivity) 209 bss->ap_max_inactivity = ssid->ap_max_inactivity; 210 211 if (ssid->dtim_period) 212 bss->dtim_period = ssid->dtim_period; 213 214 /* Select group cipher based on the enabled pairwise cipher suites */ 215 pairwise = 0; 216 if (bss->wpa & 1) 217 pairwise |= bss->wpa_pairwise; 218 if (bss->wpa & 2) { 219 if (bss->rsn_pairwise == 0) 220 bss->rsn_pairwise = bss->wpa_pairwise; 221 pairwise |= bss->rsn_pairwise; 222 } 223 if (pairwise & WPA_CIPHER_TKIP) 224 bss->wpa_group = WPA_CIPHER_TKIP; 225 else if ((pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) == 226 WPA_CIPHER_GCMP) 227 bss->wpa_group = WPA_CIPHER_GCMP; 228 else 229 bss->wpa_group = WPA_CIPHER_CCMP; 230 231 if (bss->wpa && bss->ieee802_1x) 232 bss->ssid.security_policy = SECURITY_WPA; 233 else if (bss->wpa) 234 bss->ssid.security_policy = SECURITY_WPA_PSK; 235 else if (bss->ieee802_1x) { 236 int cipher = WPA_CIPHER_NONE; 237 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 238 bss->ssid.wep.default_len = bss->default_wep_key_len; 239 if (bss->default_wep_key_len) 240 cipher = bss->default_wep_key_len >= 13 ? 241 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 242 bss->wpa_group = cipher; 243 bss->wpa_pairwise = cipher; 244 bss->rsn_pairwise = cipher; 245 } else if (bss->ssid.wep.keys_set) { 246 int cipher = WPA_CIPHER_WEP40; 247 if (bss->ssid.wep.len[0] >= 13) 248 cipher = WPA_CIPHER_WEP104; 249 bss->ssid.security_policy = SECURITY_STATIC_WEP; 250 bss->wpa_group = cipher; 251 bss->wpa_pairwise = cipher; 252 bss->rsn_pairwise = cipher; 253 } else { 254 bss->ssid.security_policy = SECURITY_PLAINTEXT; 255 bss->wpa_group = WPA_CIPHER_NONE; 256 bss->wpa_pairwise = WPA_CIPHER_NONE; 257 bss->rsn_pairwise = WPA_CIPHER_NONE; 258 } 259 260 #ifdef CONFIG_WPS 261 /* 262 * Enable WPS by default for open and WPA/WPA2-Personal network, but 263 * require user interaction to actually use it. Only the internal 264 * Registrar is supported. 265 */ 266 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 267 bss->ssid.security_policy != SECURITY_PLAINTEXT) 268 goto no_wps; 269 #ifdef CONFIG_WPS2 270 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 271 (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 272 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 273 * configuration */ 274 #endif /* CONFIG_WPS2 */ 275 bss->eap_server = 1; 276 277 if (!ssid->ignore_broadcast_ssid) 278 bss->wps_state = 2; 279 280 bss->ap_setup_locked = 2; 281 if (wpa_s->conf->config_methods) 282 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 283 os_memcpy(bss->device_type, wpa_s->conf->device_type, 284 WPS_DEV_TYPE_LEN); 285 if (wpa_s->conf->device_name) { 286 bss->device_name = os_strdup(wpa_s->conf->device_name); 287 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 288 } 289 if (wpa_s->conf->manufacturer) 290 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 291 if (wpa_s->conf->model_name) 292 bss->model_name = os_strdup(wpa_s->conf->model_name); 293 if (wpa_s->conf->model_number) 294 bss->model_number = os_strdup(wpa_s->conf->model_number); 295 if (wpa_s->conf->serial_number) 296 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 297 if (is_nil_uuid(wpa_s->conf->uuid)) 298 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 299 else 300 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 301 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 302 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 303 no_wps: 304 #endif /* CONFIG_WPS */ 305 306 if (wpa_s->max_stations && 307 wpa_s->max_stations < wpa_s->conf->max_num_sta) 308 bss->max_num_sta = wpa_s->max_stations; 309 else 310 bss->max_num_sta = wpa_s->conf->max_num_sta; 311 312 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 313 314 return 0; 315 } 316 317 318 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 319 { 320 #ifdef CONFIG_P2P 321 struct wpa_supplicant *wpa_s = ctx; 322 const struct ieee80211_mgmt *mgmt; 323 size_t hdr_len; 324 325 mgmt = (const struct ieee80211_mgmt *) buf; 326 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 327 if (hdr_len > len) 328 return; 329 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 330 mgmt->u.action.category, 331 &mgmt->u.action.u.vs_public_action.action, 332 len - hdr_len, freq); 333 #endif /* CONFIG_P2P */ 334 } 335 336 337 static void ap_wps_event_cb(void *ctx, enum wps_event event, 338 union wps_event_data *data) 339 { 340 #ifdef CONFIG_P2P 341 struct wpa_supplicant *wpa_s = ctx; 342 343 if (event == WPS_EV_FAIL) { 344 struct wps_event_fail *fail = &data->fail; 345 346 if (wpa_s->parent && wpa_s->parent != wpa_s && 347 wpa_s == wpa_s->global->p2p_group_formation) { 348 /* 349 * src/ap/wps_hostapd.c has already sent this on the 350 * main interface, so only send on the parent interface 351 * here if needed. 352 */ 353 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 354 "msg=%d config_error=%d", 355 fail->msg, fail->config_error); 356 } 357 wpas_p2p_wps_failed(wpa_s, fail); 358 } 359 #endif /* CONFIG_P2P */ 360 } 361 362 363 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 364 int authorized, const u8 *p2p_dev_addr) 365 { 366 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 367 } 368 369 370 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 371 { 372 #ifdef CONFIG_P2P 373 struct wpa_supplicant *wpa_s = ctx; 374 const struct ieee80211_mgmt *mgmt; 375 size_t hdr_len; 376 377 mgmt = (const struct ieee80211_mgmt *) buf; 378 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 379 if (hdr_len > len) 380 return -1; 381 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 382 mgmt->u.action.category, 383 &mgmt->u.action.u.vs_public_action.action, 384 len - hdr_len, freq); 385 #endif /* CONFIG_P2P */ 386 return 0; 387 } 388 389 390 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 391 const u8 *bssid, const u8 *ie, size_t ie_len, 392 int ssi_signal) 393 { 394 #ifdef CONFIG_P2P 395 struct wpa_supplicant *wpa_s = ctx; 396 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 397 ssi_signal); 398 #else /* CONFIG_P2P */ 399 return 0; 400 #endif /* CONFIG_P2P */ 401 } 402 403 404 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 405 const u8 *uuid_e) 406 { 407 #ifdef CONFIG_P2P 408 struct wpa_supplicant *wpa_s = ctx; 409 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 410 #endif /* CONFIG_P2P */ 411 } 412 413 414 static void wpas_ap_configured_cb(void *ctx) 415 { 416 struct wpa_supplicant *wpa_s = ctx; 417 418 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 419 420 if (wpa_s->ap_configured_cb) 421 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 422 wpa_s->ap_configured_cb_data); 423 } 424 425 426 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 427 struct wpa_ssid *ssid) 428 { 429 struct wpa_driver_associate_params params; 430 struct hostapd_iface *hapd_iface; 431 struct hostapd_config *conf; 432 size_t i; 433 434 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 435 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 436 return -1; 437 } 438 439 wpa_supplicant_ap_deinit(wpa_s); 440 441 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 442 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 443 444 os_memset(¶ms, 0, sizeof(params)); 445 params.ssid = ssid->ssid; 446 params.ssid_len = ssid->ssid_len; 447 switch (ssid->mode) { 448 case WPAS_MODE_INFRA: 449 params.mode = IEEE80211_MODE_INFRA; 450 break; 451 case WPAS_MODE_IBSS: 452 params.mode = IEEE80211_MODE_IBSS; 453 break; 454 case WPAS_MODE_AP: 455 case WPAS_MODE_P2P_GO: 456 case WPAS_MODE_P2P_GROUP_FORMATION: 457 params.mode = IEEE80211_MODE_AP; 458 break; 459 } 460 params.freq = ssid->frequency; 461 462 params.wpa_proto = ssid->proto; 463 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 464 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 465 else 466 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 467 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 468 469 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 470 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; 471 else if (ssid->pairwise_cipher & WPA_CIPHER_GCMP) 472 wpa_s->pairwise_cipher = WPA_CIPHER_GCMP; 473 else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP) 474 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; 475 else if (ssid->pairwise_cipher & WPA_CIPHER_NONE) 476 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 477 else { 478 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 479 "cipher."); 480 return -1; 481 } 482 params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher); 483 params.group_suite = params.pairwise_suite; 484 485 #ifdef CONFIG_P2P 486 if (ssid->mode == WPAS_MODE_P2P_GO || 487 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 488 params.p2p = 1; 489 #endif /* CONFIG_P2P */ 490 491 if (wpa_s->parent->set_ap_uapsd) 492 params.uapsd = wpa_s->parent->ap_uapsd; 493 else 494 params.uapsd = -1; 495 496 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 497 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 498 return -1; 499 } 500 501 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 502 if (hapd_iface == NULL) 503 return -1; 504 hapd_iface->owner = wpa_s; 505 hapd_iface->drv_flags = wpa_s->drv_flags; 506 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 507 508 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 509 if (conf == NULL) { 510 wpa_supplicant_ap_deinit(wpa_s); 511 return -1; 512 } 513 514 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 515 wpa_s->conf->wmm_ac_params, 516 sizeof(wpa_s->conf->wmm_ac_params)); 517 518 if (params.uapsd > 0) { 519 conf->bss->wmm_enabled = 1; 520 conf->bss->wmm_uapsd = 1; 521 } 522 523 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 524 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 525 wpa_supplicant_ap_deinit(wpa_s); 526 return -1; 527 } 528 529 #ifdef CONFIG_P2P 530 if (ssid->mode == WPAS_MODE_P2P_GO) 531 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 532 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 533 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 534 P2P_GROUP_FORMATION; 535 #endif /* CONFIG_P2P */ 536 537 hapd_iface->num_bss = conf->num_bss; 538 hapd_iface->bss = os_calloc(conf->num_bss, 539 sizeof(struct hostapd_data *)); 540 if (hapd_iface->bss == NULL) { 541 wpa_supplicant_ap_deinit(wpa_s); 542 return -1; 543 } 544 545 for (i = 0; i < conf->num_bss; i++) { 546 hapd_iface->bss[i] = 547 hostapd_alloc_bss_data(hapd_iface, conf, 548 &conf->bss[i]); 549 if (hapd_iface->bss[i] == NULL) { 550 wpa_supplicant_ap_deinit(wpa_s); 551 return -1; 552 } 553 554 hapd_iface->bss[i]->msg_ctx = wpa_s; 555 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 556 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 557 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 558 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 559 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 560 hostapd_register_probereq_cb(hapd_iface->bss[i], 561 ap_probe_req_rx, wpa_s); 562 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 563 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 564 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 565 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 566 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 567 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 568 #ifdef CONFIG_P2P 569 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 570 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 571 ssid); 572 #endif /* CONFIG_P2P */ 573 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 574 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 575 } 576 577 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 578 hapd_iface->bss[0]->driver = wpa_s->driver; 579 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 580 581 wpa_s->current_ssid = ssid; 582 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 583 wpa_s->assoc_freq = ssid->frequency; 584 585 if (hostapd_setup_interface(wpa_s->ap_iface)) { 586 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 587 wpa_supplicant_ap_deinit(wpa_s); 588 return -1; 589 } 590 591 return 0; 592 } 593 594 595 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 596 { 597 #ifdef CONFIG_WPS 598 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 599 #endif /* CONFIG_WPS */ 600 601 if (wpa_s->ap_iface == NULL) 602 return; 603 604 wpa_s->current_ssid = NULL; 605 wpa_s->assoc_freq = 0; 606 #ifdef CONFIG_P2P 607 if (wpa_s->ap_iface->bss) 608 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 609 wpas_p2p_group_deinit(wpa_s); 610 #endif /* CONFIG_P2P */ 611 hostapd_interface_deinit(wpa_s->ap_iface); 612 hostapd_interface_free(wpa_s->ap_iface); 613 wpa_s->ap_iface = NULL; 614 wpa_drv_deinit_ap(wpa_s); 615 } 616 617 618 void ap_tx_status(void *ctx, const u8 *addr, 619 const u8 *buf, size_t len, int ack) 620 { 621 #ifdef NEED_AP_MLME 622 struct wpa_supplicant *wpa_s = ctx; 623 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 624 #endif /* NEED_AP_MLME */ 625 } 626 627 628 void ap_eapol_tx_status(void *ctx, const u8 *dst, 629 const u8 *data, size_t len, int ack) 630 { 631 #ifdef NEED_AP_MLME 632 struct wpa_supplicant *wpa_s = ctx; 633 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 634 #endif /* NEED_AP_MLME */ 635 } 636 637 638 void ap_client_poll_ok(void *ctx, const u8 *addr) 639 { 640 #ifdef NEED_AP_MLME 641 struct wpa_supplicant *wpa_s = ctx; 642 if (wpa_s->ap_iface) 643 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 644 #endif /* NEED_AP_MLME */ 645 } 646 647 648 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 649 { 650 #ifdef NEED_AP_MLME 651 struct wpa_supplicant *wpa_s = ctx; 652 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 653 #endif /* NEED_AP_MLME */ 654 } 655 656 657 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 658 { 659 #ifdef NEED_AP_MLME 660 struct wpa_supplicant *wpa_s = ctx; 661 struct hostapd_frame_info fi; 662 os_memset(&fi, 0, sizeof(fi)); 663 fi.datarate = rx_mgmt->datarate; 664 fi.ssi_signal = rx_mgmt->ssi_signal; 665 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 666 rx_mgmt->frame_len, &fi); 667 #endif /* NEED_AP_MLME */ 668 } 669 670 671 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 672 { 673 #ifdef NEED_AP_MLME 674 struct wpa_supplicant *wpa_s = ctx; 675 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 676 #endif /* NEED_AP_MLME */ 677 } 678 679 680 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 681 const u8 *src_addr, const u8 *buf, size_t len) 682 { 683 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 684 } 685 686 687 #ifdef CONFIG_WPS 688 689 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 690 const u8 *p2p_dev_addr) 691 { 692 if (!wpa_s->ap_iface) 693 return -1; 694 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 695 p2p_dev_addr); 696 } 697 698 699 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 700 { 701 struct wps_registrar *reg; 702 int reg_sel = 0, wps_sta = 0; 703 704 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 705 return -1; 706 707 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 708 reg_sel = wps_registrar_wps_cancel(reg); 709 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 710 ap_sta_wps_cancel, NULL); 711 712 if (!reg_sel && !wps_sta) { 713 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 714 "time"); 715 return -1; 716 } 717 718 /* 719 * There are 2 cases to return wps cancel as success: 720 * 1. When wps cancel was initiated but no connection has been 721 * established with client yet. 722 * 2. Client is in the middle of exchanging WPS messages. 723 */ 724 725 return 0; 726 } 727 728 729 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 730 const char *pin, char *buf, size_t buflen, 731 int timeout) 732 { 733 int ret, ret_len = 0; 734 735 if (!wpa_s->ap_iface) 736 return -1; 737 738 if (pin == NULL) { 739 unsigned int rpin = wps_generate_pin(); 740 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 741 pin = buf; 742 } else 743 ret_len = os_snprintf(buf, buflen, "%s", pin); 744 745 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 746 timeout); 747 if (ret) 748 return -1; 749 return ret_len; 750 } 751 752 753 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 754 { 755 struct wpa_supplicant *wpa_s = eloop_data; 756 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 757 wpas_wps_ap_pin_disable(wpa_s); 758 } 759 760 761 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 762 { 763 struct hostapd_data *hapd; 764 765 if (wpa_s->ap_iface == NULL) 766 return; 767 hapd = wpa_s->ap_iface->bss[0]; 768 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 769 hapd->ap_pin_failures = 0; 770 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 771 if (timeout > 0) 772 eloop_register_timeout(timeout, 0, 773 wpas_wps_ap_pin_timeout, wpa_s, NULL); 774 } 775 776 777 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 778 { 779 struct hostapd_data *hapd; 780 781 if (wpa_s->ap_iface == NULL) 782 return; 783 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 784 hapd = wpa_s->ap_iface->bss[0]; 785 os_free(hapd->conf->ap_pin); 786 hapd->conf->ap_pin = NULL; 787 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 788 } 789 790 791 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 792 { 793 struct hostapd_data *hapd; 794 unsigned int pin; 795 char pin_txt[9]; 796 797 if (wpa_s->ap_iface == NULL) 798 return NULL; 799 hapd = wpa_s->ap_iface->bss[0]; 800 pin = wps_generate_pin(); 801 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 802 os_free(hapd->conf->ap_pin); 803 hapd->conf->ap_pin = os_strdup(pin_txt); 804 if (hapd->conf->ap_pin == NULL) 805 return NULL; 806 wpas_wps_ap_pin_enable(wpa_s, timeout); 807 808 return hapd->conf->ap_pin; 809 } 810 811 812 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 813 { 814 struct hostapd_data *hapd; 815 if (wpa_s->ap_iface == NULL) 816 return NULL; 817 hapd = wpa_s->ap_iface->bss[0]; 818 return hapd->conf->ap_pin; 819 } 820 821 822 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 823 int timeout) 824 { 825 struct hostapd_data *hapd; 826 char pin_txt[9]; 827 int ret; 828 829 if (wpa_s->ap_iface == NULL) 830 return -1; 831 hapd = wpa_s->ap_iface->bss[0]; 832 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 833 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 834 return -1; 835 os_free(hapd->conf->ap_pin); 836 hapd->conf->ap_pin = os_strdup(pin_txt); 837 if (hapd->conf->ap_pin == NULL) 838 return -1; 839 wpas_wps_ap_pin_enable(wpa_s, timeout); 840 841 return 0; 842 } 843 844 845 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 846 { 847 struct hostapd_data *hapd; 848 849 if (wpa_s->ap_iface == NULL) 850 return; 851 hapd = wpa_s->ap_iface->bss[0]; 852 853 /* 854 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 855 * PIN if this happens multiple times to slow down brute force attacks. 856 */ 857 hapd->ap_pin_failures++; 858 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 859 hapd->ap_pin_failures); 860 if (hapd->ap_pin_failures < 3) 861 return; 862 863 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 864 hapd->ap_pin_failures = 0; 865 os_free(hapd->conf->ap_pin); 866 hapd->conf->ap_pin = NULL; 867 } 868 869 #endif /* CONFIG_WPS */ 870 871 872 #ifdef CONFIG_CTRL_IFACE 873 874 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 875 char *buf, size_t buflen) 876 { 877 if (wpa_s->ap_iface == NULL) 878 return -1; 879 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 880 buf, buflen); 881 } 882 883 884 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 885 char *buf, size_t buflen) 886 { 887 if (wpa_s->ap_iface == NULL) 888 return -1; 889 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 890 buf, buflen); 891 } 892 893 894 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 895 char *buf, size_t buflen) 896 { 897 if (wpa_s->ap_iface == NULL) 898 return -1; 899 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 900 buf, buflen); 901 } 902 903 904 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 905 const char *txtaddr) 906 { 907 if (wpa_s->ap_iface == NULL) 908 return -1; 909 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 910 txtaddr); 911 } 912 913 914 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 915 const char *txtaddr) 916 { 917 if (wpa_s->ap_iface == NULL) 918 return -1; 919 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 920 txtaddr); 921 } 922 923 924 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 925 size_t buflen, int verbose) 926 { 927 char *pos = buf, *end = buf + buflen; 928 int ret; 929 struct hostapd_bss_config *conf; 930 931 if (wpa_s->ap_iface == NULL) 932 return -1; 933 934 conf = wpa_s->ap_iface->bss[0]->conf; 935 if (conf->wpa == 0) 936 return 0; 937 938 ret = os_snprintf(pos, end - pos, 939 "pairwise_cipher=%s\n" 940 "group_cipher=%s\n" 941 "key_mgmt=%s\n", 942 wpa_cipher_txt(conf->rsn_pairwise), 943 wpa_cipher_txt(conf->wpa_group), 944 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 945 conf->wpa)); 946 if (ret < 0 || ret >= end - pos) 947 return pos - buf; 948 pos += ret; 949 return pos - buf; 950 } 951 952 #endif /* CONFIG_CTRL_IFACE */ 953 954 955 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 956 { 957 struct hostapd_iface *iface = wpa_s->ap_iface; 958 struct wpa_ssid *ssid = wpa_s->current_ssid; 959 struct hostapd_data *hapd; 960 961 if (ssid == NULL || wpa_s->ap_iface == NULL || 962 ssid->mode == WPAS_MODE_INFRA || 963 ssid->mode == WPAS_MODE_IBSS) 964 return -1; 965 966 #ifdef CONFIG_P2P 967 if (ssid->mode == WPAS_MODE_P2P_GO) 968 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 969 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 970 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 971 P2P_GROUP_FORMATION; 972 #endif /* CONFIG_P2P */ 973 974 hapd = iface->bss[0]; 975 if (hapd->drv_priv == NULL) 976 return -1; 977 ieee802_11_set_beacons(iface); 978 hostapd_set_ap_wps_ie(hapd); 979 980 return 0; 981 } 982 983 984 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 985 int offset) 986 { 987 if (!wpa_s->ap_iface) 988 return; 989 990 wpa_s->assoc_freq = freq; 991 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset); 992 } 993 994 995 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 996 const u8 *addr) 997 { 998 struct hostapd_data *hapd; 999 struct hostapd_bss_config *conf; 1000 1001 if (!wpa_s->ap_iface) 1002 return -1; 1003 1004 if (addr) 1005 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1006 MAC2STR(addr)); 1007 else 1008 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1009 1010 hapd = wpa_s->ap_iface->bss[0]; 1011 conf = hapd->conf; 1012 1013 os_free(conf->accept_mac); 1014 conf->accept_mac = NULL; 1015 conf->num_accept_mac = 0; 1016 os_free(conf->deny_mac); 1017 conf->deny_mac = NULL; 1018 conf->num_deny_mac = 0; 1019 1020 if (addr == NULL) { 1021 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1022 return 0; 1023 } 1024 1025 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1026 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1027 if (conf->accept_mac == NULL) 1028 return -1; 1029 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1030 conf->num_accept_mac = 1; 1031 1032 return 0; 1033 } 1034