ap.c revision fb79edc9df1f20461e90e478363d207348213d35
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 "eapol_supp/eapol_supp_sm.h" 18#include "ap/hostapd.h" 19#include "ap/ap_config.h" 20#include "ap/ap_drv_ops.h" 21#ifdef NEED_AP_MLME 22#include "ap/ieee802_11.h" 23#endif /* NEED_AP_MLME */ 24#include "ap/beacon.h" 25#include "ap/ieee802_1x.h" 26#include "ap/wps_hostapd.h" 27#include "ap/ctrl_iface_ap.h" 28#include "wps/wps.h" 29#include "common/ieee802_11_defs.h" 30#include "config_ssid.h" 31#include "config.h" 32#include "wpa_supplicant_i.h" 33#include "driver_i.h" 34#include "p2p_supplicant.h" 35#include "ap.h" 36#include "ap/sta_info.h" 37#include "notify.h" 38 39 40#ifdef CONFIG_WPS 41static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 42#endif /* CONFIG_WPS */ 43 44 45#ifdef CONFIG_IEEE80211N 46static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s, 47 struct hostapd_config *conf, 48 struct hostapd_hw_modes *mode) 49{ 50 u8 center_chan = 0; 51 u8 channel = conf->channel; 52 53 if (!conf->secondary_channel) 54 goto no_vht; 55 56 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel); 57 if (!center_chan) 58 goto no_vht; 59 60 /* Use 80 MHz channel */ 61 conf->vht_oper_chwidth = 1; 62 conf->vht_oper_centr_freq_seg0_idx = center_chan; 63 return; 64 65no_vht: 66 conf->vht_oper_centr_freq_seg0_idx = 67 channel + conf->secondary_channel * 2; 68} 69#endif /* CONFIG_IEEE80211N */ 70 71 72static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s, 73 struct wpa_ssid *ssid, 74 struct hostapd_config *conf) 75{ 76 struct hostapd_bss_config *bss = conf->bss[0]; 77 78 conf->driver = wpa_s->driver; 79 80 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface)); 81 82 conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency, 83 &conf->channel); 84 if (conf->hw_mode == NUM_HOSTAPD_MODES) { 85 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", 86 ssid->frequency); 87 return -1; 88 } 89 90 /* TODO: enable HT40 if driver supports it; 91 * drop to 11b if driver does not support 11g */ 92 93#ifdef CONFIG_IEEE80211N 94 /* 95 * Enable HT20 if the driver supports it, by setting conf->ieee80211n 96 * and a mask of allowed capabilities within conf->ht_capab. 97 * Using default config settings for: conf->ht_op_mode_fixed, 98 * conf->secondary_channel, conf->require_ht 99 */ 100 if (wpa_s->hw.modes) { 101 struct hostapd_hw_modes *mode = NULL; 102 int i, no_ht = 0; 103 for (i = 0; i < wpa_s->hw.num_modes; i++) { 104 if (wpa_s->hw.modes[i].mode == conf->hw_mode) { 105 mode = &wpa_s->hw.modes[i]; 106 break; 107 } 108 } 109 110#ifdef CONFIG_HT_OVERRIDES 111 if (ssid->disable_ht) { 112 conf->ieee80211n = 0; 113 conf->ht_capab = 0; 114 no_ht = 1; 115 } 116#endif /* CONFIG_HT_OVERRIDES */ 117 118 if (!no_ht && mode && mode->ht_capab) { 119 conf->ieee80211n = 1; 120#ifdef CONFIG_P2P 121 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && 122 (mode->ht_capab & 123 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && 124 ssid->ht40) 125 conf->secondary_channel = 126 wpas_p2p_get_ht40_mode(wpa_s, mode, 127 conf->channel); 128 if (conf->secondary_channel) 129 conf->ht_capab |= 130 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET; 131#endif /* CONFIG_P2P */ 132 133 /* 134 * white-list capabilities that won't cause issues 135 * to connecting stations, while leaving the current 136 * capabilities intact (currently disabled SMPS). 137 */ 138 conf->ht_capab |= mode->ht_capab & 139 (HT_CAP_INFO_GREEN_FIELD | 140 HT_CAP_INFO_SHORT_GI20MHZ | 141 HT_CAP_INFO_SHORT_GI40MHZ | 142 HT_CAP_INFO_RX_STBC_MASK | 143 HT_CAP_INFO_MAX_AMSDU_SIZE); 144 145 if (mode->vht_capab && ssid->vht) { 146 conf->ieee80211ac = 1; 147 wpas_conf_ap_vht(wpa_s, conf, mode); 148 } 149 } 150 } 151#endif /* CONFIG_IEEE80211N */ 152 153#ifdef CONFIG_P2P 154 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G && 155 (ssid->mode == WPAS_MODE_P2P_GO || 156 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) { 157 /* Remove 802.11b rates from supported and basic rate sets */ 158 int *list = os_malloc(4 * sizeof(int)); 159 if (list) { 160 list[0] = 60; 161 list[1] = 120; 162 list[2] = 240; 163 list[3] = -1; 164 } 165 conf->basic_rates = list; 166 167 list = os_malloc(9 * sizeof(int)); 168 if (list) { 169 list[0] = 60; 170 list[1] = 90; 171 list[2] = 120; 172 list[3] = 180; 173 list[4] = 240; 174 list[5] = 360; 175 list[6] = 480; 176 list[7] = 540; 177 list[8] = -1; 178 } 179 conf->supported_rates = list; 180 } 181 182 bss->isolate = !wpa_s->conf->p2p_intra_bss; 183 bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk; 184#endif /* CONFIG_P2P */ 185 186 if (ssid->ssid_len == 0) { 187 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 188 return -1; 189 } 190 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); 191 bss->ssid.ssid_len = ssid->ssid_len; 192 bss->ssid.ssid_set = 1; 193 194 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid; 195 196 if (ssid->auth_alg) 197 bss->auth_algs = ssid->auth_alg; 198 199 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) 200 bss->wpa = ssid->proto; 201 bss->wpa_key_mgmt = ssid->key_mgmt; 202 bss->wpa_pairwise = ssid->pairwise_cipher; 203 if (ssid->psk_set) { 204 os_free(bss->ssid.wpa_psk); 205 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 206 if (bss->ssid.wpa_psk == NULL) 207 return -1; 208 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); 209 bss->ssid.wpa_psk->group = 1; 210 } else if (ssid->passphrase) { 211 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); 212 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] || 213 ssid->wep_key_len[2] || ssid->wep_key_len[3]) { 214 struct hostapd_wep_keys *wep = &bss->ssid.wep; 215 int i; 216 for (i = 0; i < NUM_WEP_KEYS; i++) { 217 if (ssid->wep_key_len[i] == 0) 218 continue; 219 wep->key[i] = os_malloc(ssid->wep_key_len[i]); 220 if (wep->key[i] == NULL) 221 return -1; 222 os_memcpy(wep->key[i], ssid->wep_key[i], 223 ssid->wep_key_len[i]); 224 wep->len[i] = ssid->wep_key_len[i]; 225 } 226 wep->idx = ssid->wep_tx_keyidx; 227 wep->keys_set = 1; 228 } 229 230 if (ssid->ap_max_inactivity) 231 bss->ap_max_inactivity = ssid->ap_max_inactivity; 232 233 if (ssid->dtim_period) 234 bss->dtim_period = ssid->dtim_period; 235 else if (wpa_s->conf->dtim_period) 236 bss->dtim_period = wpa_s->conf->dtim_period; 237 238 if (ssid->beacon_int) 239 conf->beacon_int = ssid->beacon_int; 240 else if (wpa_s->conf->beacon_int) 241 conf->beacon_int = wpa_s->conf->beacon_int; 242 243 if ((bss->wpa & 2) && bss->rsn_pairwise == 0) 244 bss->rsn_pairwise = bss->wpa_pairwise; 245 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise, 246 bss->rsn_pairwise); 247 248 if (bss->wpa && bss->ieee802_1x) 249 bss->ssid.security_policy = SECURITY_WPA; 250 else if (bss->wpa) 251 bss->ssid.security_policy = SECURITY_WPA_PSK; 252 else if (bss->ieee802_1x) { 253 int cipher = WPA_CIPHER_NONE; 254 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 255 bss->ssid.wep.default_len = bss->default_wep_key_len; 256 if (bss->default_wep_key_len) 257 cipher = bss->default_wep_key_len >= 13 ? 258 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 259 bss->wpa_group = cipher; 260 bss->wpa_pairwise = cipher; 261 bss->rsn_pairwise = cipher; 262 } else if (bss->ssid.wep.keys_set) { 263 int cipher = WPA_CIPHER_WEP40; 264 if (bss->ssid.wep.len[0] >= 13) 265 cipher = WPA_CIPHER_WEP104; 266 bss->ssid.security_policy = SECURITY_STATIC_WEP; 267 bss->wpa_group = cipher; 268 bss->wpa_pairwise = cipher; 269 bss->rsn_pairwise = cipher; 270 } else { 271 bss->ssid.security_policy = SECURITY_PLAINTEXT; 272 bss->wpa_group = WPA_CIPHER_NONE; 273 bss->wpa_pairwise = WPA_CIPHER_NONE; 274 bss->rsn_pairwise = WPA_CIPHER_NONE; 275 } 276 277 if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) && 278 (bss->wpa_group == WPA_CIPHER_CCMP || 279 bss->wpa_group == WPA_CIPHER_GCMP || 280 bss->wpa_group == WPA_CIPHER_CCMP_256 || 281 bss->wpa_group == WPA_CIPHER_GCMP_256)) { 282 /* 283 * Strong ciphers do not need frequent rekeying, so increase 284 * the default GTK rekeying period to 24 hours. 285 */ 286 bss->wpa_group_rekey = 86400; 287 } 288 289#ifdef CONFIG_WPS 290 /* 291 * Enable WPS by default for open and WPA/WPA2-Personal network, but 292 * require user interaction to actually use it. Only the internal 293 * Registrar is supported. 294 */ 295 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 296 bss->ssid.security_policy != SECURITY_PLAINTEXT) 297 goto no_wps; 298#ifdef CONFIG_WPS2 299 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 300 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 301 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 302 * configuration */ 303#endif /* CONFIG_WPS2 */ 304 bss->eap_server = 1; 305 306 if (!ssid->ignore_broadcast_ssid) 307 bss->wps_state = 2; 308 309 bss->ap_setup_locked = 2; 310 if (wpa_s->conf->config_methods) 311 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 312 os_memcpy(bss->device_type, wpa_s->conf->device_type, 313 WPS_DEV_TYPE_LEN); 314 if (wpa_s->conf->device_name) { 315 bss->device_name = os_strdup(wpa_s->conf->device_name); 316 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 317 } 318 if (wpa_s->conf->manufacturer) 319 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 320 if (wpa_s->conf->model_name) 321 bss->model_name = os_strdup(wpa_s->conf->model_name); 322 if (wpa_s->conf->model_number) 323 bss->model_number = os_strdup(wpa_s->conf->model_number); 324 if (wpa_s->conf->serial_number) 325 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 326 if (is_nil_uuid(wpa_s->conf->uuid)) 327 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 328 else 329 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 330 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 331 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 332no_wps: 333#endif /* CONFIG_WPS */ 334 335 if (wpa_s->max_stations && 336 wpa_s->max_stations < wpa_s->conf->max_num_sta) 337 bss->max_num_sta = wpa_s->max_stations; 338 else 339 bss->max_num_sta = wpa_s->conf->max_num_sta; 340 341 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 342 343 if (wpa_s->conf->ap_vendor_elements) { 344 bss->vendor_elements = 345 wpabuf_dup(wpa_s->conf->ap_vendor_elements); 346 } 347 348 return 0; 349} 350 351 352static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 353{ 354#ifdef CONFIG_P2P 355 struct wpa_supplicant *wpa_s = ctx; 356 const struct ieee80211_mgmt *mgmt; 357 size_t hdr_len; 358 359 mgmt = (const struct ieee80211_mgmt *) buf; 360 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 361 if (hdr_len > len) 362 return; 363 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 364 mgmt->u.action.category, 365 &mgmt->u.action.u.vs_public_action.action, 366 len - hdr_len, freq); 367#endif /* CONFIG_P2P */ 368} 369 370 371static void ap_wps_event_cb(void *ctx, enum wps_event event, 372 union wps_event_data *data) 373{ 374#ifdef CONFIG_P2P 375 struct wpa_supplicant *wpa_s = ctx; 376 377 if (event == WPS_EV_FAIL) { 378 struct wps_event_fail *fail = &data->fail; 379 380 if (wpa_s->parent && wpa_s->parent != wpa_s && 381 wpa_s == wpa_s->global->p2p_group_formation) { 382 /* 383 * src/ap/wps_hostapd.c has already sent this on the 384 * main interface, so only send on the parent interface 385 * here if needed. 386 */ 387 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 388 "msg=%d config_error=%d", 389 fail->msg, fail->config_error); 390 } 391 wpas_p2p_wps_failed(wpa_s, fail); 392 } 393#endif /* CONFIG_P2P */ 394} 395 396 397static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 398 int authorized, const u8 *p2p_dev_addr) 399{ 400 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 401} 402 403 404#ifdef CONFIG_P2P 405static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr, 406 const u8 *psk, size_t psk_len) 407{ 408 409 struct wpa_supplicant *wpa_s = ctx; 410 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL) 411 return; 412 wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len); 413} 414#endif /* CONFIG_P2P */ 415 416 417static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 418{ 419#ifdef CONFIG_P2P 420 struct wpa_supplicant *wpa_s = ctx; 421 const struct ieee80211_mgmt *mgmt; 422 size_t hdr_len; 423 424 mgmt = (const struct ieee80211_mgmt *) buf; 425 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 426 if (hdr_len > len) 427 return -1; 428 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 429 mgmt->u.action.category, 430 &mgmt->u.action.u.vs_public_action.action, 431 len - hdr_len, freq); 432#endif /* CONFIG_P2P */ 433 return 0; 434} 435 436 437static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 438 const u8 *bssid, const u8 *ie, size_t ie_len, 439 int ssi_signal) 440{ 441#ifdef CONFIG_P2P 442 struct wpa_supplicant *wpa_s = ctx; 443 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 444 ssi_signal); 445#else /* CONFIG_P2P */ 446 return 0; 447#endif /* CONFIG_P2P */ 448} 449 450 451static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 452 const u8 *uuid_e) 453{ 454#ifdef CONFIG_P2P 455 struct wpa_supplicant *wpa_s = ctx; 456 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 457#endif /* CONFIG_P2P */ 458} 459 460 461static void wpas_ap_configured_cb(void *ctx) 462{ 463 struct wpa_supplicant *wpa_s = ctx; 464 465 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 466 467 if (wpa_s->ap_configured_cb) 468 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 469 wpa_s->ap_configured_cb_data); 470} 471 472 473int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 474 struct wpa_ssid *ssid) 475{ 476 struct wpa_driver_associate_params params; 477 struct hostapd_iface *hapd_iface; 478 struct hostapd_config *conf; 479 size_t i; 480 481 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 482 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 483 return -1; 484 } 485 486 wpa_supplicant_ap_deinit(wpa_s); 487 488 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 489 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 490 491 os_memset(¶ms, 0, sizeof(params)); 492 params.ssid = ssid->ssid; 493 params.ssid_len = ssid->ssid_len; 494 switch (ssid->mode) { 495 case WPAS_MODE_INFRA: 496 params.mode = IEEE80211_MODE_INFRA; 497 break; 498 case WPAS_MODE_IBSS: 499 params.mode = IEEE80211_MODE_IBSS; 500 break; 501 case WPAS_MODE_AP: 502 case WPAS_MODE_P2P_GO: 503 case WPAS_MODE_P2P_GROUP_FORMATION: 504 params.mode = IEEE80211_MODE_AP; 505 break; 506 } 507 if (ssid->frequency == 0) 508 ssid->frequency = 2462; /* default channel 11 */ 509 params.freq = ssid->frequency; 510 511 params.wpa_proto = ssid->proto; 512 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 513 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 514 else 515 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 516 params.key_mgmt_suite = wpa_s->key_mgmt; 517 518 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 519 1); 520 if (wpa_s->pairwise_cipher < 0) { 521 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 522 "cipher."); 523 return -1; 524 } 525 params.pairwise_suite = wpa_s->pairwise_cipher; 526 params.group_suite = params.pairwise_suite; 527 528#ifdef CONFIG_P2P 529 if (ssid->mode == WPAS_MODE_P2P_GO || 530 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 531 params.p2p = 1; 532#endif /* CONFIG_P2P */ 533 534 if (wpa_s->parent->set_ap_uapsd) 535 params.uapsd = wpa_s->parent->ap_uapsd; 536 else 537 params.uapsd = -1; 538 539 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 540 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 541 return -1; 542 } 543 544 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 545 if (hapd_iface == NULL) 546 return -1; 547 hapd_iface->owner = wpa_s; 548 hapd_iface->drv_flags = wpa_s->drv_flags; 549 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 550 hapd_iface->extended_capa = wpa_s->extended_capa; 551 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask; 552 hapd_iface->extended_capa_len = wpa_s->extended_capa_len; 553 554 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 555 if (conf == NULL) { 556 wpa_supplicant_ap_deinit(wpa_s); 557 return -1; 558 } 559 560 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 561 wpa_s->conf->wmm_ac_params, 562 sizeof(wpa_s->conf->wmm_ac_params)); 563 564 if (params.uapsd > 0) { 565 conf->bss[0]->wmm_enabled = 1; 566 conf->bss[0]->wmm_uapsd = 1; 567 } 568 569 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 570 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 571 wpa_supplicant_ap_deinit(wpa_s); 572 return -1; 573 } 574 575#ifdef CONFIG_P2P 576 if (ssid->mode == WPAS_MODE_P2P_GO) 577 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 578 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 579 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 580 P2P_GROUP_FORMATION; 581#endif /* CONFIG_P2P */ 582 583 hapd_iface->num_bss = conf->num_bss; 584 hapd_iface->bss = os_calloc(conf->num_bss, 585 sizeof(struct hostapd_data *)); 586 if (hapd_iface->bss == NULL) { 587 wpa_supplicant_ap_deinit(wpa_s); 588 return -1; 589 } 590 591 for (i = 0; i < conf->num_bss; i++) { 592 hapd_iface->bss[i] = 593 hostapd_alloc_bss_data(hapd_iface, conf, 594 conf->bss[i]); 595 if (hapd_iface->bss[i] == NULL) { 596 wpa_supplicant_ap_deinit(wpa_s); 597 return -1; 598 } 599 600 hapd_iface->bss[i]->msg_ctx = wpa_s; 601 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 602 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 603 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 604 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 605 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 606 hostapd_register_probereq_cb(hapd_iface->bss[i], 607 ap_probe_req_rx, wpa_s); 608 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 609 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 610 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 611 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 612 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 613 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 614#ifdef CONFIG_P2P 615 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb; 616 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s; 617 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 618 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 619 ssid); 620#endif /* CONFIG_P2P */ 621 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 622 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 623 } 624 625 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 626 hapd_iface->bss[0]->driver = wpa_s->driver; 627 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 628 629 wpa_s->current_ssid = ssid; 630 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 631 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 632 wpa_s->assoc_freq = ssid->frequency; 633 634 if (hostapd_setup_interface(wpa_s->ap_iface)) { 635 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 636 wpa_supplicant_ap_deinit(wpa_s); 637 return -1; 638 } 639 640 return 0; 641} 642 643 644void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 645{ 646#ifdef CONFIG_WPS 647 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 648#endif /* CONFIG_WPS */ 649 650 if (wpa_s->ap_iface == NULL) 651 return; 652 653 wpa_s->current_ssid = NULL; 654 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 655 wpa_s->assoc_freq = 0; 656#ifdef CONFIG_P2P 657 if (wpa_s->ap_iface->bss) 658 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 659 wpas_p2p_group_deinit(wpa_s); 660#endif /* CONFIG_P2P */ 661 hostapd_interface_deinit(wpa_s->ap_iface); 662 hostapd_interface_free(wpa_s->ap_iface); 663 wpa_s->ap_iface = NULL; 664 wpa_drv_deinit_ap(wpa_s); 665} 666 667 668void ap_tx_status(void *ctx, const u8 *addr, 669 const u8 *buf, size_t len, int ack) 670{ 671#ifdef NEED_AP_MLME 672 struct wpa_supplicant *wpa_s = ctx; 673 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 674#endif /* NEED_AP_MLME */ 675} 676 677 678void ap_eapol_tx_status(void *ctx, const u8 *dst, 679 const u8 *data, size_t len, int ack) 680{ 681#ifdef NEED_AP_MLME 682 struct wpa_supplicant *wpa_s = ctx; 683 if (!wpa_s->ap_iface) 684 return; 685 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 686#endif /* NEED_AP_MLME */ 687} 688 689 690void ap_client_poll_ok(void *ctx, const u8 *addr) 691{ 692#ifdef NEED_AP_MLME 693 struct wpa_supplicant *wpa_s = ctx; 694 if (wpa_s->ap_iface) 695 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 696#endif /* NEED_AP_MLME */ 697} 698 699 700void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 701{ 702#ifdef NEED_AP_MLME 703 struct wpa_supplicant *wpa_s = ctx; 704 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 705#endif /* NEED_AP_MLME */ 706} 707 708 709void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 710{ 711#ifdef NEED_AP_MLME 712 struct wpa_supplicant *wpa_s = ctx; 713 struct hostapd_frame_info fi; 714 os_memset(&fi, 0, sizeof(fi)); 715 fi.datarate = rx_mgmt->datarate; 716 fi.ssi_signal = rx_mgmt->ssi_signal; 717 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 718 rx_mgmt->frame_len, &fi); 719#endif /* NEED_AP_MLME */ 720} 721 722 723void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 724{ 725#ifdef NEED_AP_MLME 726 struct wpa_supplicant *wpa_s = ctx; 727 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 728#endif /* NEED_AP_MLME */ 729} 730 731 732void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 733 const u8 *src_addr, const u8 *buf, size_t len) 734{ 735 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 736} 737 738 739#ifdef CONFIG_WPS 740 741int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 742 const u8 *p2p_dev_addr) 743{ 744 if (!wpa_s->ap_iface) 745 return -1; 746 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 747 p2p_dev_addr); 748} 749 750 751int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 752{ 753 struct wps_registrar *reg; 754 int reg_sel = 0, wps_sta = 0; 755 756 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 757 return -1; 758 759 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 760 reg_sel = wps_registrar_wps_cancel(reg); 761 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 762 ap_sta_wps_cancel, NULL); 763 764 if (!reg_sel && !wps_sta) { 765 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 766 "time"); 767 return -1; 768 } 769 770 /* 771 * There are 2 cases to return wps cancel as success: 772 * 1. When wps cancel was initiated but no connection has been 773 * established with client yet. 774 * 2. Client is in the middle of exchanging WPS messages. 775 */ 776 777 return 0; 778} 779 780 781int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 782 const char *pin, char *buf, size_t buflen, 783 int timeout) 784{ 785 int ret, ret_len = 0; 786 787 if (!wpa_s->ap_iface) 788 return -1; 789 790 if (pin == NULL) { 791 unsigned int rpin = wps_generate_pin(); 792 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 793 pin = buf; 794 } else 795 ret_len = os_snprintf(buf, buflen, "%s", pin); 796 797 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 798 timeout); 799 if (ret) 800 return -1; 801 return ret_len; 802} 803 804 805static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 806{ 807 struct wpa_supplicant *wpa_s = eloop_data; 808 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 809 wpas_wps_ap_pin_disable(wpa_s); 810} 811 812 813static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 814{ 815 struct hostapd_data *hapd; 816 817 if (wpa_s->ap_iface == NULL) 818 return; 819 hapd = wpa_s->ap_iface->bss[0]; 820 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 821 hapd->ap_pin_failures = 0; 822 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 823 if (timeout > 0) 824 eloop_register_timeout(timeout, 0, 825 wpas_wps_ap_pin_timeout, wpa_s, NULL); 826} 827 828 829void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 830{ 831 struct hostapd_data *hapd; 832 833 if (wpa_s->ap_iface == NULL) 834 return; 835 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 836 hapd = wpa_s->ap_iface->bss[0]; 837 os_free(hapd->conf->ap_pin); 838 hapd->conf->ap_pin = NULL; 839 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 840} 841 842 843const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 844{ 845 struct hostapd_data *hapd; 846 unsigned int pin; 847 char pin_txt[9]; 848 849 if (wpa_s->ap_iface == NULL) 850 return NULL; 851 hapd = wpa_s->ap_iface->bss[0]; 852 pin = wps_generate_pin(); 853 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 854 os_free(hapd->conf->ap_pin); 855 hapd->conf->ap_pin = os_strdup(pin_txt); 856 if (hapd->conf->ap_pin == NULL) 857 return NULL; 858 wpas_wps_ap_pin_enable(wpa_s, timeout); 859 860 return hapd->conf->ap_pin; 861} 862 863 864const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 865{ 866 struct hostapd_data *hapd; 867 if (wpa_s->ap_iface == NULL) 868 return NULL; 869 hapd = wpa_s->ap_iface->bss[0]; 870 return hapd->conf->ap_pin; 871} 872 873 874int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 875 int timeout) 876{ 877 struct hostapd_data *hapd; 878 char pin_txt[9]; 879 int ret; 880 881 if (wpa_s->ap_iface == NULL) 882 return -1; 883 hapd = wpa_s->ap_iface->bss[0]; 884 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 885 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 886 return -1; 887 os_free(hapd->conf->ap_pin); 888 hapd->conf->ap_pin = os_strdup(pin_txt); 889 if (hapd->conf->ap_pin == NULL) 890 return -1; 891 wpas_wps_ap_pin_enable(wpa_s, timeout); 892 893 return 0; 894} 895 896 897void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 898{ 899 struct hostapd_data *hapd; 900 901 if (wpa_s->ap_iface == NULL) 902 return; 903 hapd = wpa_s->ap_iface->bss[0]; 904 905 /* 906 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 907 * PIN if this happens multiple times to slow down brute force attacks. 908 */ 909 hapd->ap_pin_failures++; 910 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 911 hapd->ap_pin_failures); 912 if (hapd->ap_pin_failures < 3) 913 return; 914 915 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 916 hapd->ap_pin_failures = 0; 917 os_free(hapd->conf->ap_pin); 918 hapd->conf->ap_pin = NULL; 919} 920 921 922#ifdef CONFIG_WPS_NFC 923 924struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 925 int ndef) 926{ 927 struct hostapd_data *hapd; 928 929 if (wpa_s->ap_iface == NULL) 930 return NULL; 931 hapd = wpa_s->ap_iface->bss[0]; 932 return hostapd_wps_nfc_config_token(hapd, ndef); 933} 934 935 936struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 937 int ndef) 938{ 939 struct hostapd_data *hapd; 940 941 if (wpa_s->ap_iface == NULL) 942 return NULL; 943 hapd = wpa_s->ap_iface->bss[0]; 944 return hostapd_wps_nfc_hs_cr(hapd, ndef); 945} 946 947#endif /* CONFIG_WPS_NFC */ 948 949#endif /* CONFIG_WPS */ 950 951 952#ifdef CONFIG_CTRL_IFACE 953 954int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 955 char *buf, size_t buflen) 956{ 957 if (wpa_s->ap_iface == NULL) 958 return -1; 959 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 960 buf, buflen); 961} 962 963 964int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 965 char *buf, size_t buflen) 966{ 967 if (wpa_s->ap_iface == NULL) 968 return -1; 969 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 970 buf, buflen); 971} 972 973 974int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 975 char *buf, size_t buflen) 976{ 977 if (wpa_s->ap_iface == NULL) 978 return -1; 979 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 980 buf, buflen); 981} 982 983 984int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 985 const char *txtaddr) 986{ 987 if (wpa_s->ap_iface == NULL) 988 return -1; 989 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 990 txtaddr); 991} 992 993 994int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 995 const char *txtaddr) 996{ 997 if (wpa_s->ap_iface == NULL) 998 return -1; 999 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 1000 txtaddr); 1001} 1002 1003 1004int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 1005 size_t buflen, int verbose) 1006{ 1007 char *pos = buf, *end = buf + buflen; 1008 int ret; 1009 struct hostapd_bss_config *conf; 1010 1011 if (wpa_s->ap_iface == NULL) 1012 return -1; 1013 1014 conf = wpa_s->ap_iface->bss[0]->conf; 1015 if (conf->wpa == 0) 1016 return 0; 1017 1018 ret = os_snprintf(pos, end - pos, 1019 "pairwise_cipher=%s\n" 1020 "group_cipher=%s\n" 1021 "key_mgmt=%s\n", 1022 wpa_cipher_txt(conf->rsn_pairwise), 1023 wpa_cipher_txt(conf->wpa_group), 1024 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 1025 conf->wpa)); 1026 if (ret < 0 || ret >= end - pos) 1027 return pos - buf; 1028 pos += ret; 1029 return pos - buf; 1030} 1031 1032#endif /* CONFIG_CTRL_IFACE */ 1033 1034 1035int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 1036{ 1037 struct hostapd_iface *iface = wpa_s->ap_iface; 1038 struct wpa_ssid *ssid = wpa_s->current_ssid; 1039 struct hostapd_data *hapd; 1040 1041 if (ssid == NULL || wpa_s->ap_iface == NULL || 1042 ssid->mode == WPAS_MODE_INFRA || 1043 ssid->mode == WPAS_MODE_IBSS) 1044 return -1; 1045 1046#ifdef CONFIG_P2P 1047 if (ssid->mode == WPAS_MODE_P2P_GO) 1048 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 1049 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 1050 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 1051 P2P_GROUP_FORMATION; 1052#endif /* CONFIG_P2P */ 1053 1054 hapd = iface->bss[0]; 1055 if (hapd->drv_priv == NULL) 1056 return -1; 1057 ieee802_11_set_beacons(iface); 1058 hostapd_set_ap_wps_ie(hapd); 1059 1060 return 0; 1061} 1062 1063 1064int ap_switch_channel(struct wpa_supplicant *wpa_s, 1065 struct csa_settings *settings) 1066{ 1067#ifdef NEED_AP_MLME 1068 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]) 1069 return -1; 1070 1071 return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings); 1072#else /* NEED_AP_MLME */ 1073 return -1; 1074#endif /* NEED_AP_MLME */ 1075} 1076 1077 1078int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos) 1079{ 1080 struct csa_settings settings; 1081 int ret = hostapd_parse_csa_settings(pos, &settings); 1082 1083 if (ret) 1084 return ret; 1085 1086 return ap_switch_channel(wpa_s, &settings); 1087} 1088 1089 1090void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 1091 int offset, int width, int cf1, int cf2) 1092{ 1093 if (!wpa_s->ap_iface) 1094 return; 1095 1096 wpa_s->assoc_freq = freq; 1097 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1); 1098} 1099 1100 1101int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 1102 const u8 *addr) 1103{ 1104 struct hostapd_data *hapd; 1105 struct hostapd_bss_config *conf; 1106 1107 if (!wpa_s->ap_iface) 1108 return -1; 1109 1110 if (addr) 1111 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1112 MAC2STR(addr)); 1113 else 1114 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1115 1116 hapd = wpa_s->ap_iface->bss[0]; 1117 conf = hapd->conf; 1118 1119 os_free(conf->accept_mac); 1120 conf->accept_mac = NULL; 1121 conf->num_accept_mac = 0; 1122 os_free(conf->deny_mac); 1123 conf->deny_mac = NULL; 1124 conf->num_deny_mac = 0; 1125 1126 if (addr == NULL) { 1127 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1128 return 0; 1129 } 1130 1131 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1132 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1133 if (conf->accept_mac == NULL) 1134 return -1; 1135 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1136 conf->num_accept_mac = 1; 1137 1138 return 0; 1139} 1140