ap.c revision a54fa5fb807eaeff45464139b5a7759f060cec68
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 40static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 41#endif /* CONFIG_WPS */ 42 43 44static 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; 212 213 if ((bss->wpa & 2) && bss->rsn_pairwise == 0) 214 bss->rsn_pairwise = bss->wpa_pairwise; 215 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise, 216 bss->rsn_pairwise); 217 218 if (bss->wpa && bss->ieee802_1x) 219 bss->ssid.security_policy = SECURITY_WPA; 220 else if (bss->wpa) 221 bss->ssid.security_policy = SECURITY_WPA_PSK; 222 else if (bss->ieee802_1x) { 223 int cipher = WPA_CIPHER_NONE; 224 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 225 bss->ssid.wep.default_len = bss->default_wep_key_len; 226 if (bss->default_wep_key_len) 227 cipher = bss->default_wep_key_len >= 13 ? 228 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 229 bss->wpa_group = cipher; 230 bss->wpa_pairwise = cipher; 231 bss->rsn_pairwise = cipher; 232 } else if (bss->ssid.wep.keys_set) { 233 int cipher = WPA_CIPHER_WEP40; 234 if (bss->ssid.wep.len[0] >= 13) 235 cipher = WPA_CIPHER_WEP104; 236 bss->ssid.security_policy = SECURITY_STATIC_WEP; 237 bss->wpa_group = cipher; 238 bss->wpa_pairwise = cipher; 239 bss->rsn_pairwise = cipher; 240 } else { 241 bss->ssid.security_policy = SECURITY_PLAINTEXT; 242 bss->wpa_group = WPA_CIPHER_NONE; 243 bss->wpa_pairwise = WPA_CIPHER_NONE; 244 bss->rsn_pairwise = WPA_CIPHER_NONE; 245 } 246 247#ifdef CONFIG_WPS 248 /* 249 * Enable WPS by default for open and WPA/WPA2-Personal network, but 250 * require user interaction to actually use it. Only the internal 251 * Registrar is supported. 252 */ 253 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 254 bss->ssid.security_policy != SECURITY_PLAINTEXT) 255 goto no_wps; 256#ifdef CONFIG_WPS2 257 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 258 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 259 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 260 * configuration */ 261#endif /* CONFIG_WPS2 */ 262 bss->eap_server = 1; 263 264 if (!ssid->ignore_broadcast_ssid) 265 bss->wps_state = 2; 266 267 bss->ap_setup_locked = 2; 268 if (wpa_s->conf->config_methods) 269 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 270 os_memcpy(bss->device_type, wpa_s->conf->device_type, 271 WPS_DEV_TYPE_LEN); 272 if (wpa_s->conf->device_name) { 273 bss->device_name = os_strdup(wpa_s->conf->device_name); 274 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 275 } 276 if (wpa_s->conf->manufacturer) 277 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 278 if (wpa_s->conf->model_name) 279 bss->model_name = os_strdup(wpa_s->conf->model_name); 280 if (wpa_s->conf->model_number) 281 bss->model_number = os_strdup(wpa_s->conf->model_number); 282 if (wpa_s->conf->serial_number) 283 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 284 if (is_nil_uuid(wpa_s->conf->uuid)) 285 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 286 else 287 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 288 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 289 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 290no_wps: 291#endif /* CONFIG_WPS */ 292 293 if (wpa_s->max_stations && 294 wpa_s->max_stations < wpa_s->conf->max_num_sta) 295 bss->max_num_sta = wpa_s->max_stations; 296 else 297 bss->max_num_sta = wpa_s->conf->max_num_sta; 298 299 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 300 301 return 0; 302} 303 304 305static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 306{ 307#ifdef CONFIG_P2P 308 struct wpa_supplicant *wpa_s = ctx; 309 const struct ieee80211_mgmt *mgmt; 310 size_t hdr_len; 311 312 mgmt = (const struct ieee80211_mgmt *) buf; 313 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 314 if (hdr_len > len) 315 return; 316 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 317 mgmt->u.action.category, 318 &mgmt->u.action.u.vs_public_action.action, 319 len - hdr_len, freq); 320#endif /* CONFIG_P2P */ 321} 322 323 324static void ap_wps_event_cb(void *ctx, enum wps_event event, 325 union wps_event_data *data) 326{ 327#ifdef CONFIG_P2P 328 struct wpa_supplicant *wpa_s = ctx; 329 330 if (event == WPS_EV_FAIL) { 331 struct wps_event_fail *fail = &data->fail; 332 333 if (wpa_s->parent && wpa_s->parent != wpa_s && 334 wpa_s == wpa_s->global->p2p_group_formation) { 335 /* 336 * src/ap/wps_hostapd.c has already sent this on the 337 * main interface, so only send on the parent interface 338 * here if needed. 339 */ 340 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 341 "msg=%d config_error=%d", 342 fail->msg, fail->config_error); 343 } 344 wpas_p2p_wps_failed(wpa_s, fail); 345 } 346#endif /* CONFIG_P2P */ 347} 348 349 350static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 351 int authorized, const u8 *p2p_dev_addr) 352{ 353 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 354} 355 356 357static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 358{ 359#ifdef CONFIG_P2P 360 struct wpa_supplicant *wpa_s = ctx; 361 const struct ieee80211_mgmt *mgmt; 362 size_t hdr_len; 363 364 mgmt = (const struct ieee80211_mgmt *) buf; 365 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 366 if (hdr_len > len) 367 return -1; 368 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 369 mgmt->u.action.category, 370 &mgmt->u.action.u.vs_public_action.action, 371 len - hdr_len, freq); 372#endif /* CONFIG_P2P */ 373 return 0; 374} 375 376 377static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 378 const u8 *bssid, const u8 *ie, size_t ie_len, 379 int ssi_signal) 380{ 381#ifdef CONFIG_P2P 382 struct wpa_supplicant *wpa_s = ctx; 383 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 384 ssi_signal); 385#else /* CONFIG_P2P */ 386 return 0; 387#endif /* CONFIG_P2P */ 388} 389 390 391static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 392 const u8 *uuid_e) 393{ 394#ifdef CONFIG_P2P 395 struct wpa_supplicant *wpa_s = ctx; 396 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 397#endif /* CONFIG_P2P */ 398} 399 400 401static void wpas_ap_configured_cb(void *ctx) 402{ 403 struct wpa_supplicant *wpa_s = ctx; 404 405 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 406 407 if (wpa_s->ap_configured_cb) 408 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 409 wpa_s->ap_configured_cb_data); 410} 411 412 413int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 414 struct wpa_ssid *ssid) 415{ 416 struct wpa_driver_associate_params params; 417 struct hostapd_iface *hapd_iface; 418 struct hostapd_config *conf; 419 size_t i; 420 421 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 422 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 423 return -1; 424 } 425 426 wpa_supplicant_ap_deinit(wpa_s); 427 428 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 429 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 430 431 os_memset(¶ms, 0, sizeof(params)); 432 params.ssid = ssid->ssid; 433 params.ssid_len = ssid->ssid_len; 434 switch (ssid->mode) { 435 case WPAS_MODE_INFRA: 436 params.mode = IEEE80211_MODE_INFRA; 437 break; 438 case WPAS_MODE_IBSS: 439 params.mode = IEEE80211_MODE_IBSS; 440 break; 441 case WPAS_MODE_AP: 442 case WPAS_MODE_P2P_GO: 443 case WPAS_MODE_P2P_GROUP_FORMATION: 444 params.mode = IEEE80211_MODE_AP; 445 break; 446 } 447 params.freq = ssid->frequency; 448 449 params.wpa_proto = ssid->proto; 450 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 451 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 452 else 453 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 454 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 455 456 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 457 1); 458 if (wpa_s->pairwise_cipher < 0) { 459 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 460 "cipher."); 461 return -1; 462 } 463 params.pairwise_suite = 464 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher); 465 params.group_suite = params.pairwise_suite; 466 467#ifdef CONFIG_P2P 468 if (ssid->mode == WPAS_MODE_P2P_GO || 469 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 470 params.p2p = 1; 471#endif /* CONFIG_P2P */ 472 473 if (wpa_s->parent->set_ap_uapsd) 474 params.uapsd = wpa_s->parent->ap_uapsd; 475 else 476 params.uapsd = -1; 477 478 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 479 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 480 return -1; 481 } 482 483 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 484 if (hapd_iface == NULL) 485 return -1; 486 hapd_iface->owner = wpa_s; 487 hapd_iface->drv_flags = wpa_s->drv_flags; 488 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 489 490 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 491 if (conf == NULL) { 492 wpa_supplicant_ap_deinit(wpa_s); 493 return -1; 494 } 495 496 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 497 wpa_s->conf->wmm_ac_params, 498 sizeof(wpa_s->conf->wmm_ac_params)); 499 500 if (params.uapsd > 0) { 501 conf->bss->wmm_enabled = 1; 502 conf->bss->wmm_uapsd = 1; 503 } 504 505 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 506 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 507 wpa_supplicant_ap_deinit(wpa_s); 508 return -1; 509 } 510 511#ifdef CONFIG_P2P 512 if (ssid->mode == WPAS_MODE_P2P_GO) 513 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 514 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 515 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 516 P2P_GROUP_FORMATION; 517#endif /* CONFIG_P2P */ 518 519 hapd_iface->num_bss = conf->num_bss; 520 hapd_iface->bss = os_calloc(conf->num_bss, 521 sizeof(struct hostapd_data *)); 522 if (hapd_iface->bss == NULL) { 523 wpa_supplicant_ap_deinit(wpa_s); 524 return -1; 525 } 526 527 for (i = 0; i < conf->num_bss; i++) { 528 hapd_iface->bss[i] = 529 hostapd_alloc_bss_data(hapd_iface, conf, 530 &conf->bss[i]); 531 if (hapd_iface->bss[i] == NULL) { 532 wpa_supplicant_ap_deinit(wpa_s); 533 return -1; 534 } 535 536 hapd_iface->bss[i]->msg_ctx = wpa_s; 537 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 538 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 539 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 540 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 541 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 542 hostapd_register_probereq_cb(hapd_iface->bss[i], 543 ap_probe_req_rx, wpa_s); 544 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 545 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 546 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 547 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 548 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 549 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 550#ifdef CONFIG_P2P 551 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 552 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 553 ssid); 554#endif /* CONFIG_P2P */ 555 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 556 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 557 } 558 559 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 560 hapd_iface->bss[0]->driver = wpa_s->driver; 561 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 562 563 wpa_s->current_ssid = ssid; 564 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 565 wpa_s->assoc_freq = ssid->frequency; 566 567 if (hostapd_setup_interface(wpa_s->ap_iface)) { 568 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 569 wpa_supplicant_ap_deinit(wpa_s); 570 return -1; 571 } 572 573 return 0; 574} 575 576 577void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 578{ 579#ifdef CONFIG_WPS 580 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 581#endif /* CONFIG_WPS */ 582 583 if (wpa_s->ap_iface == NULL) 584 return; 585 586 wpa_s->current_ssid = NULL; 587 wpa_s->assoc_freq = 0; 588#ifdef CONFIG_P2P 589 if (wpa_s->ap_iface->bss) 590 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 591 wpas_p2p_group_deinit(wpa_s); 592#endif /* CONFIG_P2P */ 593 hostapd_interface_deinit(wpa_s->ap_iface); 594 hostapd_interface_free(wpa_s->ap_iface); 595 wpa_s->ap_iface = NULL; 596 wpa_drv_deinit_ap(wpa_s); 597} 598 599 600void ap_tx_status(void *ctx, const u8 *addr, 601 const u8 *buf, size_t len, int ack) 602{ 603#ifdef NEED_AP_MLME 604 struct wpa_supplicant *wpa_s = ctx; 605 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 606#endif /* NEED_AP_MLME */ 607} 608 609 610void ap_eapol_tx_status(void *ctx, const u8 *dst, 611 const u8 *data, size_t len, int ack) 612{ 613#ifdef NEED_AP_MLME 614 struct wpa_supplicant *wpa_s = ctx; 615 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 616#endif /* NEED_AP_MLME */ 617} 618 619 620void ap_client_poll_ok(void *ctx, const u8 *addr) 621{ 622#ifdef NEED_AP_MLME 623 struct wpa_supplicant *wpa_s = ctx; 624 if (wpa_s->ap_iface) 625 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 626#endif /* NEED_AP_MLME */ 627} 628 629 630void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 631{ 632#ifdef NEED_AP_MLME 633 struct wpa_supplicant *wpa_s = ctx; 634 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 635#endif /* NEED_AP_MLME */ 636} 637 638 639void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 640{ 641#ifdef NEED_AP_MLME 642 struct wpa_supplicant *wpa_s = ctx; 643 struct hostapd_frame_info fi; 644 os_memset(&fi, 0, sizeof(fi)); 645 fi.datarate = rx_mgmt->datarate; 646 fi.ssi_signal = rx_mgmt->ssi_signal; 647 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 648 rx_mgmt->frame_len, &fi); 649#endif /* NEED_AP_MLME */ 650} 651 652 653void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 654{ 655#ifdef NEED_AP_MLME 656 struct wpa_supplicant *wpa_s = ctx; 657 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 658#endif /* NEED_AP_MLME */ 659} 660 661 662void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 663 const u8 *src_addr, const u8 *buf, size_t len) 664{ 665 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 666} 667 668 669#ifdef CONFIG_WPS 670 671int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 672 const u8 *p2p_dev_addr) 673{ 674 if (!wpa_s->ap_iface) 675 return -1; 676 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 677 p2p_dev_addr); 678} 679 680 681int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 682{ 683 struct wps_registrar *reg; 684 int reg_sel = 0, wps_sta = 0; 685 686 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 687 return -1; 688 689 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 690 reg_sel = wps_registrar_wps_cancel(reg); 691 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 692 ap_sta_wps_cancel, NULL); 693 694 if (!reg_sel && !wps_sta) { 695 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 696 "time"); 697 return -1; 698 } 699 700 /* 701 * There are 2 cases to return wps cancel as success: 702 * 1. When wps cancel was initiated but no connection has been 703 * established with client yet. 704 * 2. Client is in the middle of exchanging WPS messages. 705 */ 706 707 return 0; 708} 709 710 711int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 712 const char *pin, char *buf, size_t buflen, 713 int timeout) 714{ 715 int ret, ret_len = 0; 716 717 if (!wpa_s->ap_iface) 718 return -1; 719 720 if (pin == NULL) { 721 unsigned int rpin = wps_generate_pin(); 722 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 723 pin = buf; 724 } else 725 ret_len = os_snprintf(buf, buflen, "%s", pin); 726 727 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 728 timeout); 729 if (ret) 730 return -1; 731 return ret_len; 732} 733 734 735static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 736{ 737 struct wpa_supplicant *wpa_s = eloop_data; 738 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 739 wpas_wps_ap_pin_disable(wpa_s); 740} 741 742 743static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 744{ 745 struct hostapd_data *hapd; 746 747 if (wpa_s->ap_iface == NULL) 748 return; 749 hapd = wpa_s->ap_iface->bss[0]; 750 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 751 hapd->ap_pin_failures = 0; 752 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 753 if (timeout > 0) 754 eloop_register_timeout(timeout, 0, 755 wpas_wps_ap_pin_timeout, wpa_s, NULL); 756} 757 758 759void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 760{ 761 struct hostapd_data *hapd; 762 763 if (wpa_s->ap_iface == NULL) 764 return; 765 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 766 hapd = wpa_s->ap_iface->bss[0]; 767 os_free(hapd->conf->ap_pin); 768 hapd->conf->ap_pin = NULL; 769 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 770} 771 772 773const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 774{ 775 struct hostapd_data *hapd; 776 unsigned int pin; 777 char pin_txt[9]; 778 779 if (wpa_s->ap_iface == NULL) 780 return NULL; 781 hapd = wpa_s->ap_iface->bss[0]; 782 pin = wps_generate_pin(); 783 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 784 os_free(hapd->conf->ap_pin); 785 hapd->conf->ap_pin = os_strdup(pin_txt); 786 if (hapd->conf->ap_pin == NULL) 787 return NULL; 788 wpas_wps_ap_pin_enable(wpa_s, timeout); 789 790 return hapd->conf->ap_pin; 791} 792 793 794const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 795{ 796 struct hostapd_data *hapd; 797 if (wpa_s->ap_iface == NULL) 798 return NULL; 799 hapd = wpa_s->ap_iface->bss[0]; 800 return hapd->conf->ap_pin; 801} 802 803 804int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 805 int timeout) 806{ 807 struct hostapd_data *hapd; 808 char pin_txt[9]; 809 int ret; 810 811 if (wpa_s->ap_iface == NULL) 812 return -1; 813 hapd = wpa_s->ap_iface->bss[0]; 814 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 815 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 816 return -1; 817 os_free(hapd->conf->ap_pin); 818 hapd->conf->ap_pin = os_strdup(pin_txt); 819 if (hapd->conf->ap_pin == NULL) 820 return -1; 821 wpas_wps_ap_pin_enable(wpa_s, timeout); 822 823 return 0; 824} 825 826 827void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 828{ 829 struct hostapd_data *hapd; 830 831 if (wpa_s->ap_iface == NULL) 832 return; 833 hapd = wpa_s->ap_iface->bss[0]; 834 835 /* 836 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 837 * PIN if this happens multiple times to slow down brute force attacks. 838 */ 839 hapd->ap_pin_failures++; 840 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 841 hapd->ap_pin_failures); 842 if (hapd->ap_pin_failures < 3) 843 return; 844 845 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 846 hapd->ap_pin_failures = 0; 847 os_free(hapd->conf->ap_pin); 848 hapd->conf->ap_pin = NULL; 849} 850 851#endif /* CONFIG_WPS */ 852 853 854#ifdef CONFIG_CTRL_IFACE 855 856int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 857 char *buf, size_t buflen) 858{ 859 if (wpa_s->ap_iface == NULL) 860 return -1; 861 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 862 buf, buflen); 863} 864 865 866int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 867 char *buf, size_t buflen) 868{ 869 if (wpa_s->ap_iface == NULL) 870 return -1; 871 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 872 buf, buflen); 873} 874 875 876int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 877 char *buf, size_t buflen) 878{ 879 if (wpa_s->ap_iface == NULL) 880 return -1; 881 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 882 buf, buflen); 883} 884 885 886int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 887 const char *txtaddr) 888{ 889 if (wpa_s->ap_iface == NULL) 890 return -1; 891 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 892 txtaddr); 893} 894 895 896int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 897 const char *txtaddr) 898{ 899 if (wpa_s->ap_iface == NULL) 900 return -1; 901 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 902 txtaddr); 903} 904 905 906int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 907 size_t buflen, int verbose) 908{ 909 char *pos = buf, *end = buf + buflen; 910 int ret; 911 struct hostapd_bss_config *conf; 912 913 if (wpa_s->ap_iface == NULL) 914 return -1; 915 916 conf = wpa_s->ap_iface->bss[0]->conf; 917 if (conf->wpa == 0) 918 return 0; 919 920 ret = os_snprintf(pos, end - pos, 921 "pairwise_cipher=%s\n" 922 "group_cipher=%s\n" 923 "key_mgmt=%s\n", 924 wpa_cipher_txt(conf->rsn_pairwise), 925 wpa_cipher_txt(conf->wpa_group), 926 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 927 conf->wpa)); 928 if (ret < 0 || ret >= end - pos) 929 return pos - buf; 930 pos += ret; 931 return pos - buf; 932} 933 934#endif /* CONFIG_CTRL_IFACE */ 935 936 937int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 938{ 939 struct hostapd_iface *iface = wpa_s->ap_iface; 940 struct wpa_ssid *ssid = wpa_s->current_ssid; 941 struct hostapd_data *hapd; 942 943 if (ssid == NULL || wpa_s->ap_iface == NULL || 944 ssid->mode == WPAS_MODE_INFRA || 945 ssid->mode == WPAS_MODE_IBSS) 946 return -1; 947 948#ifdef CONFIG_P2P 949 if (ssid->mode == WPAS_MODE_P2P_GO) 950 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 951 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 952 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 953 P2P_GROUP_FORMATION; 954#endif /* CONFIG_P2P */ 955 956 hapd = iface->bss[0]; 957 if (hapd->drv_priv == NULL) 958 return -1; 959 ieee802_11_set_beacons(iface); 960 hostapd_set_ap_wps_ie(hapd); 961 962 return 0; 963} 964 965 966void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 967 int offset) 968{ 969 if (!wpa_s->ap_iface) 970 return; 971 972 wpa_s->assoc_freq = freq; 973 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset); 974} 975 976 977int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 978 const u8 *addr) 979{ 980 struct hostapd_data *hapd; 981 struct hostapd_bss_config *conf; 982 983 if (!wpa_s->ap_iface) 984 return -1; 985 986 if (addr) 987 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 988 MAC2STR(addr)); 989 else 990 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 991 992 hapd = wpa_s->ap_iface->bss[0]; 993 conf = hapd->conf; 994 995 os_free(conf->accept_mac); 996 conf->accept_mac = NULL; 997 conf->num_accept_mac = 0; 998 os_free(conf->deny_mac); 999 conf->deny_mac = NULL; 1000 conf->num_deny_mac = 0; 1001 1002 if (addr == NULL) { 1003 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1004 return 0; 1005 } 1006 1007 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1008 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1009 if (conf->accept_mac == NULL) 1010 return -1; 1011 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1012 conf->num_accept_mac = 1; 1013 1014 return 0; 1015} 1016