ap.c revision 7a5e50a0554bee77a9da492ea3d86f46147f1671
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 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; 297no_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 return 0; 309} 310 311 312static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 313{ 314#ifdef CONFIG_P2P 315 struct wpa_supplicant *wpa_s = ctx; 316 const struct ieee80211_mgmt *mgmt; 317 size_t hdr_len; 318 319 mgmt = (const struct ieee80211_mgmt *) buf; 320 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 321 if (hdr_len > len) 322 return; 323 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 324 mgmt->u.action.category, 325 &mgmt->u.action.u.vs_public_action.action, 326 len - hdr_len, freq); 327#endif /* CONFIG_P2P */ 328} 329 330 331static void ap_wps_event_cb(void *ctx, enum wps_event event, 332 union wps_event_data *data) 333{ 334#ifdef CONFIG_P2P 335 struct wpa_supplicant *wpa_s = ctx; 336 337 if (event == WPS_EV_FAIL) { 338 struct wps_event_fail *fail = &data->fail; 339 340 if (wpa_s->parent && wpa_s->parent != wpa_s && 341 wpa_s == wpa_s->global->p2p_group_formation) { 342 /* 343 * src/ap/wps_hostapd.c has already sent this on the 344 * main interface, so only send on the parent interface 345 * here if needed. 346 */ 347 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 348 "msg=%d config_error=%d", 349 fail->msg, fail->config_error); 350 } 351 wpas_p2p_wps_failed(wpa_s, fail); 352 } 353#endif /* CONFIG_P2P */ 354} 355 356 357static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 358 int authorized, const u8 *p2p_dev_addr) 359{ 360 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 361} 362 363 364static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 365{ 366#ifdef CONFIG_P2P 367 struct wpa_supplicant *wpa_s = ctx; 368 const struct ieee80211_mgmt *mgmt; 369 size_t hdr_len; 370 371 mgmt = (const struct ieee80211_mgmt *) buf; 372 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 373 if (hdr_len > len) 374 return -1; 375 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 376 mgmt->u.action.category, 377 &mgmt->u.action.u.vs_public_action.action, 378 len - hdr_len, freq); 379#endif /* CONFIG_P2P */ 380 return 0; 381} 382 383 384static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 385 const u8 *bssid, const u8 *ie, size_t ie_len, 386 int ssi_signal) 387{ 388#ifdef CONFIG_P2P 389 struct wpa_supplicant *wpa_s = ctx; 390 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 391 ssi_signal); 392#else /* CONFIG_P2P */ 393 return 0; 394#endif /* CONFIG_P2P */ 395} 396 397 398static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 399 const u8 *uuid_e) 400{ 401#ifdef CONFIG_P2P 402 struct wpa_supplicant *wpa_s = ctx; 403 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 404#endif /* CONFIG_P2P */ 405} 406 407 408static void wpas_ap_configured_cb(void *ctx) 409{ 410 struct wpa_supplicant *wpa_s = ctx; 411 412 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 413 414 if (wpa_s->ap_configured_cb) 415 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 416 wpa_s->ap_configured_cb_data); 417} 418 419 420int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 421 struct wpa_ssid *ssid) 422{ 423 struct wpa_driver_associate_params params; 424 struct hostapd_iface *hapd_iface; 425 struct hostapd_config *conf; 426 size_t i; 427 428 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 429 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 430 return -1; 431 } 432 433 wpa_supplicant_ap_deinit(wpa_s); 434 435 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 436 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 437 438 os_memset(¶ms, 0, sizeof(params)); 439 params.ssid = ssid->ssid; 440 params.ssid_len = ssid->ssid_len; 441 switch (ssid->mode) { 442 case WPAS_MODE_INFRA: 443 params.mode = IEEE80211_MODE_INFRA; 444 break; 445 case WPAS_MODE_IBSS: 446 params.mode = IEEE80211_MODE_IBSS; 447 break; 448 case WPAS_MODE_AP: 449 case WPAS_MODE_P2P_GO: 450 case WPAS_MODE_P2P_GROUP_FORMATION: 451 params.mode = IEEE80211_MODE_AP; 452 break; 453 } 454 params.freq = ssid->frequency; 455 456 params.wpa_proto = ssid->proto; 457 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 458 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 459 else 460 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 461 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 462 463 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 464 1); 465 if (wpa_s->pairwise_cipher < 0) { 466 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 467 "cipher."); 468 return -1; 469 } 470 params.pairwise_suite = 471 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher); 472 params.group_suite = params.pairwise_suite; 473 474#ifdef CONFIG_P2P 475 if (ssid->mode == WPAS_MODE_P2P_GO || 476 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 477 params.p2p = 1; 478#endif /* CONFIG_P2P */ 479 480 if (wpa_s->parent->set_ap_uapsd) 481 params.uapsd = wpa_s->parent->ap_uapsd; 482 else 483 params.uapsd = -1; 484 485 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 486 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 487 return -1; 488 } 489 490 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 491 if (hapd_iface == NULL) 492 return -1; 493 hapd_iface->owner = wpa_s; 494 hapd_iface->drv_flags = wpa_s->drv_flags; 495 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 496 497 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 498 if (conf == NULL) { 499 wpa_supplicant_ap_deinit(wpa_s); 500 return -1; 501 } 502 503 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 504 wpa_s->conf->wmm_ac_params, 505 sizeof(wpa_s->conf->wmm_ac_params)); 506 507 if (params.uapsd > 0) { 508 conf->bss->wmm_enabled = 1; 509 conf->bss->wmm_uapsd = 1; 510 } 511 512 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 513 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 514 wpa_supplicant_ap_deinit(wpa_s); 515 return -1; 516 } 517 518#ifdef CONFIG_P2P 519 if (ssid->mode == WPAS_MODE_P2P_GO) 520 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 521 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 522 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 523 P2P_GROUP_FORMATION; 524#endif /* CONFIG_P2P */ 525 526 hapd_iface->num_bss = conf->num_bss; 527 hapd_iface->bss = os_calloc(conf->num_bss, 528 sizeof(struct hostapd_data *)); 529 if (hapd_iface->bss == NULL) { 530 wpa_supplicant_ap_deinit(wpa_s); 531 return -1; 532 } 533 534 for (i = 0; i < conf->num_bss; i++) { 535 hapd_iface->bss[i] = 536 hostapd_alloc_bss_data(hapd_iface, conf, 537 &conf->bss[i]); 538 if (hapd_iface->bss[i] == NULL) { 539 wpa_supplicant_ap_deinit(wpa_s); 540 return -1; 541 } 542 543 hapd_iface->bss[i]->msg_ctx = wpa_s; 544 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 545 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 546 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 547 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 548 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 549 hostapd_register_probereq_cb(hapd_iface->bss[i], 550 ap_probe_req_rx, wpa_s); 551 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 552 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 553 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 554 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 555 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 556 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 557#ifdef CONFIG_P2P 558 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 559 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 560 ssid); 561#endif /* CONFIG_P2P */ 562 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 563 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 564 } 565 566 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 567 hapd_iface->bss[0]->driver = wpa_s->driver; 568 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 569 570 wpa_s->current_ssid = ssid; 571 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 572 wpa_s->assoc_freq = ssid->frequency; 573 574 if (hostapd_setup_interface(wpa_s->ap_iface)) { 575 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 576 wpa_supplicant_ap_deinit(wpa_s); 577 return -1; 578 } 579 580 return 0; 581} 582 583 584void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 585{ 586#ifdef CONFIG_WPS 587 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 588#endif /* CONFIG_WPS */ 589 590 if (wpa_s->ap_iface == NULL) 591 return; 592 593 wpa_s->current_ssid = NULL; 594 wpa_s->assoc_freq = 0; 595#ifdef CONFIG_P2P 596 if (wpa_s->ap_iface->bss) 597 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 598 wpas_p2p_group_deinit(wpa_s); 599#endif /* CONFIG_P2P */ 600 hostapd_interface_deinit(wpa_s->ap_iface); 601 hostapd_interface_free(wpa_s->ap_iface); 602 wpa_s->ap_iface = NULL; 603 wpa_drv_deinit_ap(wpa_s); 604} 605 606 607void ap_tx_status(void *ctx, const u8 *addr, 608 const u8 *buf, size_t len, int ack) 609{ 610#ifdef NEED_AP_MLME 611 struct wpa_supplicant *wpa_s = ctx; 612 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 613#endif /* NEED_AP_MLME */ 614} 615 616 617void ap_eapol_tx_status(void *ctx, const u8 *dst, 618 const u8 *data, size_t len, int ack) 619{ 620#ifdef NEED_AP_MLME 621 struct wpa_supplicant *wpa_s = ctx; 622 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 623#endif /* NEED_AP_MLME */ 624} 625 626 627void ap_client_poll_ok(void *ctx, const u8 *addr) 628{ 629#ifdef NEED_AP_MLME 630 struct wpa_supplicant *wpa_s = ctx; 631 if (wpa_s->ap_iface) 632 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 633#endif /* NEED_AP_MLME */ 634} 635 636 637void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 638{ 639#ifdef NEED_AP_MLME 640 struct wpa_supplicant *wpa_s = ctx; 641 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 642#endif /* NEED_AP_MLME */ 643} 644 645 646void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 647{ 648#ifdef NEED_AP_MLME 649 struct wpa_supplicant *wpa_s = ctx; 650 struct hostapd_frame_info fi; 651 os_memset(&fi, 0, sizeof(fi)); 652 fi.datarate = rx_mgmt->datarate; 653 fi.ssi_signal = rx_mgmt->ssi_signal; 654 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 655 rx_mgmt->frame_len, &fi); 656#endif /* NEED_AP_MLME */ 657} 658 659 660void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 661{ 662#ifdef NEED_AP_MLME 663 struct wpa_supplicant *wpa_s = ctx; 664 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 665#endif /* NEED_AP_MLME */ 666} 667 668 669void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 670 const u8 *src_addr, const u8 *buf, size_t len) 671{ 672 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 673} 674 675 676#ifdef CONFIG_WPS 677 678int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 679 const u8 *p2p_dev_addr) 680{ 681 if (!wpa_s->ap_iface) 682 return -1; 683 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 684 p2p_dev_addr); 685} 686 687 688int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 689{ 690 struct wps_registrar *reg; 691 int reg_sel = 0, wps_sta = 0; 692 693 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 694 return -1; 695 696 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 697 reg_sel = wps_registrar_wps_cancel(reg); 698 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 699 ap_sta_wps_cancel, NULL); 700 701 if (!reg_sel && !wps_sta) { 702 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 703 "time"); 704 return -1; 705 } 706 707 /* 708 * There are 2 cases to return wps cancel as success: 709 * 1. When wps cancel was initiated but no connection has been 710 * established with client yet. 711 * 2. Client is in the middle of exchanging WPS messages. 712 */ 713 714 return 0; 715} 716 717 718int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 719 const char *pin, char *buf, size_t buflen, 720 int timeout) 721{ 722 int ret, ret_len = 0; 723 724 if (!wpa_s->ap_iface) 725 return -1; 726 727 if (pin == NULL) { 728 unsigned int rpin = wps_generate_pin(); 729 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 730 pin = buf; 731 } else 732 ret_len = os_snprintf(buf, buflen, "%s", pin); 733 734 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 735 timeout); 736 if (ret) 737 return -1; 738 return ret_len; 739} 740 741 742static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 743{ 744 struct wpa_supplicant *wpa_s = eloop_data; 745 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 746 wpas_wps_ap_pin_disable(wpa_s); 747} 748 749 750static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 751{ 752 struct hostapd_data *hapd; 753 754 if (wpa_s->ap_iface == NULL) 755 return; 756 hapd = wpa_s->ap_iface->bss[0]; 757 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 758 hapd->ap_pin_failures = 0; 759 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 760 if (timeout > 0) 761 eloop_register_timeout(timeout, 0, 762 wpas_wps_ap_pin_timeout, wpa_s, NULL); 763} 764 765 766void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 767{ 768 struct hostapd_data *hapd; 769 770 if (wpa_s->ap_iface == NULL) 771 return; 772 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 773 hapd = wpa_s->ap_iface->bss[0]; 774 os_free(hapd->conf->ap_pin); 775 hapd->conf->ap_pin = NULL; 776 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 777} 778 779 780const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 781{ 782 struct hostapd_data *hapd; 783 unsigned int pin; 784 char pin_txt[9]; 785 786 if (wpa_s->ap_iface == NULL) 787 return NULL; 788 hapd = wpa_s->ap_iface->bss[0]; 789 pin = wps_generate_pin(); 790 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 791 os_free(hapd->conf->ap_pin); 792 hapd->conf->ap_pin = os_strdup(pin_txt); 793 if (hapd->conf->ap_pin == NULL) 794 return NULL; 795 wpas_wps_ap_pin_enable(wpa_s, timeout); 796 797 return hapd->conf->ap_pin; 798} 799 800 801const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 802{ 803 struct hostapd_data *hapd; 804 if (wpa_s->ap_iface == NULL) 805 return NULL; 806 hapd = wpa_s->ap_iface->bss[0]; 807 return hapd->conf->ap_pin; 808} 809 810 811int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 812 int timeout) 813{ 814 struct hostapd_data *hapd; 815 char pin_txt[9]; 816 int ret; 817 818 if (wpa_s->ap_iface == NULL) 819 return -1; 820 hapd = wpa_s->ap_iface->bss[0]; 821 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 822 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 823 return -1; 824 os_free(hapd->conf->ap_pin); 825 hapd->conf->ap_pin = os_strdup(pin_txt); 826 if (hapd->conf->ap_pin == NULL) 827 return -1; 828 wpas_wps_ap_pin_enable(wpa_s, timeout); 829 830 return 0; 831} 832 833 834void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 835{ 836 struct hostapd_data *hapd; 837 838 if (wpa_s->ap_iface == NULL) 839 return; 840 hapd = wpa_s->ap_iface->bss[0]; 841 842 /* 843 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 844 * PIN if this happens multiple times to slow down brute force attacks. 845 */ 846 hapd->ap_pin_failures++; 847 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 848 hapd->ap_pin_failures); 849 if (hapd->ap_pin_failures < 3) 850 return; 851 852 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 853 hapd->ap_pin_failures = 0; 854 os_free(hapd->conf->ap_pin); 855 hapd->conf->ap_pin = NULL; 856} 857 858 859#ifdef CONFIG_WPS_NFC 860 861struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 862 int ndef) 863{ 864 struct hostapd_data *hapd; 865 866 if (wpa_s->ap_iface == NULL) 867 return NULL; 868 hapd = wpa_s->ap_iface->bss[0]; 869 return hostapd_wps_nfc_config_token(hapd, ndef); 870} 871 872 873struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 874 int ndef) 875{ 876 struct hostapd_data *hapd; 877 878 if (wpa_s->ap_iface == NULL) 879 return NULL; 880 hapd = wpa_s->ap_iface->bss[0]; 881 return hostapd_wps_nfc_hs_cr(hapd, ndef); 882} 883 884#endif /* CONFIG_WPS_NFC */ 885 886#endif /* CONFIG_WPS */ 887 888 889#ifdef CONFIG_CTRL_IFACE 890 891int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 892 char *buf, size_t buflen) 893{ 894 if (wpa_s->ap_iface == NULL) 895 return -1; 896 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 897 buf, buflen); 898} 899 900 901int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 902 char *buf, size_t buflen) 903{ 904 if (wpa_s->ap_iface == NULL) 905 return -1; 906 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 907 buf, buflen); 908} 909 910 911int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 912 char *buf, size_t buflen) 913{ 914 if (wpa_s->ap_iface == NULL) 915 return -1; 916 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 917 buf, buflen); 918} 919 920 921int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 922 const char *txtaddr) 923{ 924 if (wpa_s->ap_iface == NULL) 925 return -1; 926 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 927 txtaddr); 928} 929 930 931int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 932 const char *txtaddr) 933{ 934 if (wpa_s->ap_iface == NULL) 935 return -1; 936 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 937 txtaddr); 938} 939 940 941int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 942 size_t buflen, int verbose) 943{ 944 char *pos = buf, *end = buf + buflen; 945 int ret; 946 struct hostapd_bss_config *conf; 947 948 if (wpa_s->ap_iface == NULL) 949 return -1; 950 951 conf = wpa_s->ap_iface->bss[0]->conf; 952 if (conf->wpa == 0) 953 return 0; 954 955 ret = os_snprintf(pos, end - pos, 956 "pairwise_cipher=%s\n" 957 "group_cipher=%s\n" 958 "key_mgmt=%s\n", 959 wpa_cipher_txt(conf->rsn_pairwise), 960 wpa_cipher_txt(conf->wpa_group), 961 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 962 conf->wpa)); 963 if (ret < 0 || ret >= end - pos) 964 return pos - buf; 965 pos += ret; 966 return pos - buf; 967} 968 969#endif /* CONFIG_CTRL_IFACE */ 970 971 972int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 973{ 974 struct hostapd_iface *iface = wpa_s->ap_iface; 975 struct wpa_ssid *ssid = wpa_s->current_ssid; 976 struct hostapd_data *hapd; 977 978 if (ssid == NULL || wpa_s->ap_iface == NULL || 979 ssid->mode == WPAS_MODE_INFRA || 980 ssid->mode == WPAS_MODE_IBSS) 981 return -1; 982 983#ifdef CONFIG_P2P 984 if (ssid->mode == WPAS_MODE_P2P_GO) 985 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER; 986 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 987 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER | 988 P2P_GROUP_FORMATION; 989#endif /* CONFIG_P2P */ 990 991 hapd = iface->bss[0]; 992 if (hapd->drv_priv == NULL) 993 return -1; 994 ieee802_11_set_beacons(iface); 995 hostapd_set_ap_wps_ie(hapd); 996 997 return 0; 998} 999 1000 1001void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 1002 int offset) 1003{ 1004 if (!wpa_s->ap_iface) 1005 return; 1006 1007 wpa_s->assoc_freq = freq; 1008 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset); 1009} 1010 1011 1012int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 1013 const u8 *addr) 1014{ 1015 struct hostapd_data *hapd; 1016 struct hostapd_bss_config *conf; 1017 1018 if (!wpa_s->ap_iface) 1019 return -1; 1020 1021 if (addr) 1022 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1023 MAC2STR(addr)); 1024 else 1025 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1026 1027 hapd = wpa_s->ap_iface->bss[0]; 1028 conf = hapd->conf; 1029 1030 os_free(conf->accept_mac); 1031 conf->accept_mac = NULL; 1032 conf->num_accept_mac = 0; 1033 os_free(conf->deny_mac); 1034 conf->deny_mac = NULL; 1035 conf->num_deny_mac = 0; 1036 1037 if (addr == NULL) { 1038 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1039 return 0; 1040 } 1041 1042 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1043 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1044 if (conf->accept_mac == NULL) 1045 return -1; 1046 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1047 conf->num_accept_mac = 1; 1048 1049 return 0; 1050} 1051