ap.c revision 04f534e89ed127da4077485376f24debc50d80d5
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 /* 281 * Strong ciphers do not need frequent rekeying, so increase 282 * the default GTK rekeying period to 24 hours. 283 */ 284 bss->wpa_group_rekey = 86400; 285 } 286 287#ifdef CONFIG_WPS 288 /* 289 * Enable WPS by default for open and WPA/WPA2-Personal network, but 290 * require user interaction to actually use it. Only the internal 291 * Registrar is supported. 292 */ 293 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 294 bss->ssid.security_policy != SECURITY_PLAINTEXT) 295 goto no_wps; 296#ifdef CONFIG_WPS2 297 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 298 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 299 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 300 * configuration */ 301#endif /* CONFIG_WPS2 */ 302 bss->eap_server = 1; 303 304 if (!ssid->ignore_broadcast_ssid) 305 bss->wps_state = 2; 306 307 bss->ap_setup_locked = 2; 308 if (wpa_s->conf->config_methods) 309 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 310 os_memcpy(bss->device_type, wpa_s->conf->device_type, 311 WPS_DEV_TYPE_LEN); 312 if (wpa_s->conf->device_name) { 313 bss->device_name = os_strdup(wpa_s->conf->device_name); 314 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 315 } 316 if (wpa_s->conf->manufacturer) 317 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 318 if (wpa_s->conf->model_name) 319 bss->model_name = os_strdup(wpa_s->conf->model_name); 320 if (wpa_s->conf->model_number) 321 bss->model_number = os_strdup(wpa_s->conf->model_number); 322 if (wpa_s->conf->serial_number) 323 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 324 if (is_nil_uuid(wpa_s->conf->uuid)) 325 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 326 else 327 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 328 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 329 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 330no_wps: 331#endif /* CONFIG_WPS */ 332 333 if (wpa_s->max_stations && 334 wpa_s->max_stations < wpa_s->conf->max_num_sta) 335 bss->max_num_sta = wpa_s->max_stations; 336 else 337 bss->max_num_sta = wpa_s->conf->max_num_sta; 338 339 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 340 341 if (wpa_s->conf->ap_vendor_elements) { 342 bss->vendor_elements = 343 wpabuf_dup(wpa_s->conf->ap_vendor_elements); 344 } 345 346 return 0; 347} 348 349 350static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 351{ 352#ifdef CONFIG_P2P 353 struct wpa_supplicant *wpa_s = ctx; 354 const struct ieee80211_mgmt *mgmt; 355 size_t hdr_len; 356 357 mgmt = (const struct ieee80211_mgmt *) buf; 358 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 359 if (hdr_len > len) 360 return; 361 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 362 mgmt->u.action.category, 363 &mgmt->u.action.u.vs_public_action.action, 364 len - hdr_len, freq); 365#endif /* CONFIG_P2P */ 366} 367 368 369static void ap_wps_event_cb(void *ctx, enum wps_event event, 370 union wps_event_data *data) 371{ 372#ifdef CONFIG_P2P 373 struct wpa_supplicant *wpa_s = ctx; 374 375 if (event == WPS_EV_FAIL) { 376 struct wps_event_fail *fail = &data->fail; 377 378 if (wpa_s->parent && wpa_s->parent != wpa_s && 379 wpa_s == wpa_s->global->p2p_group_formation) { 380 /* 381 * src/ap/wps_hostapd.c has already sent this on the 382 * main interface, so only send on the parent interface 383 * here if needed. 384 */ 385 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 386 "msg=%d config_error=%d", 387 fail->msg, fail->config_error); 388 } 389 wpas_p2p_wps_failed(wpa_s, fail); 390 } 391#endif /* CONFIG_P2P */ 392} 393 394 395static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 396 int authorized, const u8 *p2p_dev_addr) 397{ 398 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 399} 400 401 402#ifdef CONFIG_P2P 403static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr, 404 const u8 *psk, size_t psk_len) 405{ 406 407 struct wpa_supplicant *wpa_s = ctx; 408 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL) 409 return; 410 wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len); 411} 412#endif /* CONFIG_P2P */ 413 414 415static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 416{ 417#ifdef CONFIG_P2P 418 struct wpa_supplicant *wpa_s = ctx; 419 const struct ieee80211_mgmt *mgmt; 420 size_t hdr_len; 421 422 mgmt = (const struct ieee80211_mgmt *) buf; 423 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf; 424 if (hdr_len > len) 425 return -1; 426 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 427 mgmt->u.action.category, 428 &mgmt->u.action.u.vs_public_action.action, 429 len - hdr_len, freq); 430#endif /* CONFIG_P2P */ 431 return 0; 432} 433 434 435static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 436 const u8 *bssid, const u8 *ie, size_t ie_len, 437 int ssi_signal) 438{ 439#ifdef CONFIG_P2P 440 struct wpa_supplicant *wpa_s = ctx; 441 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 442 ssi_signal); 443#else /* CONFIG_P2P */ 444 return 0; 445#endif /* CONFIG_P2P */ 446} 447 448 449static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 450 const u8 *uuid_e) 451{ 452#ifdef CONFIG_P2P 453 struct wpa_supplicant *wpa_s = ctx; 454 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 455#endif /* CONFIG_P2P */ 456} 457 458 459static void wpas_ap_configured_cb(void *ctx) 460{ 461 struct wpa_supplicant *wpa_s = ctx; 462 463 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 464 465 if (wpa_s->ap_configured_cb) 466 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 467 wpa_s->ap_configured_cb_data); 468} 469 470 471int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 472 struct wpa_ssid *ssid) 473{ 474 struct wpa_driver_associate_params params; 475 struct hostapd_iface *hapd_iface; 476 struct hostapd_config *conf; 477 size_t i; 478 479 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 480 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 481 return -1; 482 } 483 484 wpa_supplicant_ap_deinit(wpa_s); 485 486 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 487 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 488 489 os_memset(¶ms, 0, sizeof(params)); 490 params.ssid = ssid->ssid; 491 params.ssid_len = ssid->ssid_len; 492 switch (ssid->mode) { 493 case WPAS_MODE_INFRA: 494 params.mode = IEEE80211_MODE_INFRA; 495 break; 496 case WPAS_MODE_IBSS: 497 params.mode = IEEE80211_MODE_IBSS; 498 break; 499 case WPAS_MODE_AP: 500 case WPAS_MODE_P2P_GO: 501 case WPAS_MODE_P2P_GROUP_FORMATION: 502 params.mode = IEEE80211_MODE_AP; 503 break; 504 } 505 if (ssid->frequency == 0) 506 ssid->frequency = 2462; /* default channel 11 */ 507 params.freq = ssid->frequency; 508 509 params.wpa_proto = ssid->proto; 510 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 511 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 512 else 513 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 514 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); 515 516 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 517 1); 518 if (wpa_s->pairwise_cipher < 0) { 519 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 520 "cipher."); 521 return -1; 522 } 523 params.pairwise_suite = 524 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher); 525 params.group_suite = params.pairwise_suite; 526 527#ifdef CONFIG_P2P 528 if (ssid->mode == WPAS_MODE_P2P_GO || 529 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 530 params.p2p = 1; 531#endif /* CONFIG_P2P */ 532 533 if (wpa_s->parent->set_ap_uapsd) 534 params.uapsd = wpa_s->parent->ap_uapsd; 535 else 536 params.uapsd = -1; 537 538 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 539 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 540 return -1; 541 } 542 543 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 544 if (hapd_iface == NULL) 545 return -1; 546 hapd_iface->owner = wpa_s; 547 hapd_iface->drv_flags = wpa_s->drv_flags; 548 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 549 hapd_iface->extended_capa = wpa_s->extended_capa; 550 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask; 551 hapd_iface->extended_capa_len = wpa_s->extended_capa_len; 552 553 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 554 if (conf == NULL) { 555 wpa_supplicant_ap_deinit(wpa_s); 556 return -1; 557 } 558 559 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 560 wpa_s->conf->wmm_ac_params, 561 sizeof(wpa_s->conf->wmm_ac_params)); 562 563 if (params.uapsd > 0) { 564 conf->bss[0]->wmm_enabled = 1; 565 conf->bss[0]->wmm_uapsd = 1; 566 } 567 568 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 569 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 570 wpa_supplicant_ap_deinit(wpa_s); 571 return -1; 572 } 573 574#ifdef CONFIG_P2P 575 if (ssid->mode == WPAS_MODE_P2P_GO) 576 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 577 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 578 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 579 P2P_GROUP_FORMATION; 580#endif /* CONFIG_P2P */ 581 582 hapd_iface->num_bss = conf->num_bss; 583 hapd_iface->bss = os_calloc(conf->num_bss, 584 sizeof(struct hostapd_data *)); 585 if (hapd_iface->bss == NULL) { 586 wpa_supplicant_ap_deinit(wpa_s); 587 return -1; 588 } 589 590 for (i = 0; i < conf->num_bss; i++) { 591 hapd_iface->bss[i] = 592 hostapd_alloc_bss_data(hapd_iface, conf, 593 conf->bss[i]); 594 if (hapd_iface->bss[i] == NULL) { 595 wpa_supplicant_ap_deinit(wpa_s); 596 return -1; 597 } 598 599 hapd_iface->bss[i]->msg_ctx = wpa_s; 600 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 601 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 602 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 603 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 604 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 605 hostapd_register_probereq_cb(hapd_iface->bss[i], 606 ap_probe_req_rx, wpa_s); 607 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 608 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 609 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 610 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 611 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 612 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 613#ifdef CONFIG_P2P 614 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb; 615 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s; 616 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 617 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 618 ssid); 619#endif /* CONFIG_P2P */ 620 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 621 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 622 } 623 624 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 625 hapd_iface->bss[0]->driver = wpa_s->driver; 626 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 627 628 wpa_s->current_ssid = ssid; 629 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 630 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 631 wpa_s->assoc_freq = ssid->frequency; 632 633 if (hostapd_setup_interface(wpa_s->ap_iface)) { 634 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 635 wpa_supplicant_ap_deinit(wpa_s); 636 return -1; 637 } 638 639 return 0; 640} 641 642 643void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 644{ 645#ifdef CONFIG_WPS 646 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 647#endif /* CONFIG_WPS */ 648 649 if (wpa_s->ap_iface == NULL) 650 return; 651 652 wpa_s->current_ssid = NULL; 653 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 654 wpa_s->assoc_freq = 0; 655#ifdef CONFIG_P2P 656 if (wpa_s->ap_iface->bss) 657 wpa_s->ap_iface->bss[0]->p2p_group = NULL; 658 wpas_p2p_group_deinit(wpa_s); 659#endif /* CONFIG_P2P */ 660 hostapd_interface_deinit(wpa_s->ap_iface); 661 hostapd_interface_free(wpa_s->ap_iface); 662 wpa_s->ap_iface = NULL; 663 wpa_drv_deinit_ap(wpa_s); 664} 665 666 667void ap_tx_status(void *ctx, const u8 *addr, 668 const u8 *buf, size_t len, int ack) 669{ 670#ifdef NEED_AP_MLME 671 struct wpa_supplicant *wpa_s = ctx; 672 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 673#endif /* NEED_AP_MLME */ 674} 675 676 677void ap_eapol_tx_status(void *ctx, const u8 *dst, 678 const u8 *data, size_t len, int ack) 679{ 680#ifdef NEED_AP_MLME 681 struct wpa_supplicant *wpa_s = ctx; 682 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 683#endif /* NEED_AP_MLME */ 684} 685 686 687void ap_client_poll_ok(void *ctx, const u8 *addr) 688{ 689#ifdef NEED_AP_MLME 690 struct wpa_supplicant *wpa_s = ctx; 691 if (wpa_s->ap_iface) 692 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 693#endif /* NEED_AP_MLME */ 694} 695 696 697void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 698{ 699#ifdef NEED_AP_MLME 700 struct wpa_supplicant *wpa_s = ctx; 701 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 702#endif /* NEED_AP_MLME */ 703} 704 705 706void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 707{ 708#ifdef NEED_AP_MLME 709 struct wpa_supplicant *wpa_s = ctx; 710 struct hostapd_frame_info fi; 711 os_memset(&fi, 0, sizeof(fi)); 712 fi.datarate = rx_mgmt->datarate; 713 fi.ssi_signal = rx_mgmt->ssi_signal; 714 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 715 rx_mgmt->frame_len, &fi); 716#endif /* NEED_AP_MLME */ 717} 718 719 720void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 721{ 722#ifdef NEED_AP_MLME 723 struct wpa_supplicant *wpa_s = ctx; 724 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 725#endif /* NEED_AP_MLME */ 726} 727 728 729void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 730 const u8 *src_addr, const u8 *buf, size_t len) 731{ 732 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 733} 734 735 736#ifdef CONFIG_WPS 737 738int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 739 const u8 *p2p_dev_addr) 740{ 741 if (!wpa_s->ap_iface) 742 return -1; 743 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 744 p2p_dev_addr); 745} 746 747 748int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 749{ 750 struct wps_registrar *reg; 751 int reg_sel = 0, wps_sta = 0; 752 753 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 754 return -1; 755 756 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 757 reg_sel = wps_registrar_wps_cancel(reg); 758 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 759 ap_sta_wps_cancel, NULL); 760 761 if (!reg_sel && !wps_sta) { 762 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 763 "time"); 764 return -1; 765 } 766 767 /* 768 * There are 2 cases to return wps cancel as success: 769 * 1. When wps cancel was initiated but no connection has been 770 * established with client yet. 771 * 2. Client is in the middle of exchanging WPS messages. 772 */ 773 774 return 0; 775} 776 777 778int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 779 const char *pin, char *buf, size_t buflen, 780 int timeout) 781{ 782 int ret, ret_len = 0; 783 784 if (!wpa_s->ap_iface) 785 return -1; 786 787 if (pin == NULL) { 788 unsigned int rpin = wps_generate_pin(); 789 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 790 pin = buf; 791 } else 792 ret_len = os_snprintf(buf, buflen, "%s", pin); 793 794 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 795 timeout); 796 if (ret) 797 return -1; 798 return ret_len; 799} 800 801 802static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 803{ 804 struct wpa_supplicant *wpa_s = eloop_data; 805 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 806 wpas_wps_ap_pin_disable(wpa_s); 807} 808 809 810static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 811{ 812 struct hostapd_data *hapd; 813 814 if (wpa_s->ap_iface == NULL) 815 return; 816 hapd = wpa_s->ap_iface->bss[0]; 817 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 818 hapd->ap_pin_failures = 0; 819 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 820 if (timeout > 0) 821 eloop_register_timeout(timeout, 0, 822 wpas_wps_ap_pin_timeout, wpa_s, NULL); 823} 824 825 826void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 827{ 828 struct hostapd_data *hapd; 829 830 if (wpa_s->ap_iface == NULL) 831 return; 832 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 833 hapd = wpa_s->ap_iface->bss[0]; 834 os_free(hapd->conf->ap_pin); 835 hapd->conf->ap_pin = NULL; 836 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 837} 838 839 840const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 841{ 842 struct hostapd_data *hapd; 843 unsigned int pin; 844 char pin_txt[9]; 845 846 if (wpa_s->ap_iface == NULL) 847 return NULL; 848 hapd = wpa_s->ap_iface->bss[0]; 849 pin = wps_generate_pin(); 850 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 851 os_free(hapd->conf->ap_pin); 852 hapd->conf->ap_pin = os_strdup(pin_txt); 853 if (hapd->conf->ap_pin == NULL) 854 return NULL; 855 wpas_wps_ap_pin_enable(wpa_s, timeout); 856 857 return hapd->conf->ap_pin; 858} 859 860 861const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 862{ 863 struct hostapd_data *hapd; 864 if (wpa_s->ap_iface == NULL) 865 return NULL; 866 hapd = wpa_s->ap_iface->bss[0]; 867 return hapd->conf->ap_pin; 868} 869 870 871int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 872 int timeout) 873{ 874 struct hostapd_data *hapd; 875 char pin_txt[9]; 876 int ret; 877 878 if (wpa_s->ap_iface == NULL) 879 return -1; 880 hapd = wpa_s->ap_iface->bss[0]; 881 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 882 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 883 return -1; 884 os_free(hapd->conf->ap_pin); 885 hapd->conf->ap_pin = os_strdup(pin_txt); 886 if (hapd->conf->ap_pin == NULL) 887 return -1; 888 wpas_wps_ap_pin_enable(wpa_s, timeout); 889 890 return 0; 891} 892 893 894void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 895{ 896 struct hostapd_data *hapd; 897 898 if (wpa_s->ap_iface == NULL) 899 return; 900 hapd = wpa_s->ap_iface->bss[0]; 901 902 /* 903 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 904 * PIN if this happens multiple times to slow down brute force attacks. 905 */ 906 hapd->ap_pin_failures++; 907 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 908 hapd->ap_pin_failures); 909 if (hapd->ap_pin_failures < 3) 910 return; 911 912 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 913 hapd->ap_pin_failures = 0; 914 os_free(hapd->conf->ap_pin); 915 hapd->conf->ap_pin = NULL; 916} 917 918 919#ifdef CONFIG_WPS_NFC 920 921struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 922 int ndef) 923{ 924 struct hostapd_data *hapd; 925 926 if (wpa_s->ap_iface == NULL) 927 return NULL; 928 hapd = wpa_s->ap_iface->bss[0]; 929 return hostapd_wps_nfc_config_token(hapd, ndef); 930} 931 932 933struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 934 int ndef) 935{ 936 struct hostapd_data *hapd; 937 938 if (wpa_s->ap_iface == NULL) 939 return NULL; 940 hapd = wpa_s->ap_iface->bss[0]; 941 return hostapd_wps_nfc_hs_cr(hapd, ndef); 942} 943 944#endif /* CONFIG_WPS_NFC */ 945 946#endif /* CONFIG_WPS */ 947 948 949#ifdef CONFIG_CTRL_IFACE 950 951int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 952 char *buf, size_t buflen) 953{ 954 if (wpa_s->ap_iface == NULL) 955 return -1; 956 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 957 buf, buflen); 958} 959 960 961int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 962 char *buf, size_t buflen) 963{ 964 if (wpa_s->ap_iface == NULL) 965 return -1; 966 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 967 buf, buflen); 968} 969 970 971int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 972 char *buf, size_t buflen) 973{ 974 if (wpa_s->ap_iface == NULL) 975 return -1; 976 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 977 buf, buflen); 978} 979 980 981int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 982 const char *txtaddr) 983{ 984 if (wpa_s->ap_iface == NULL) 985 return -1; 986 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 987 txtaddr); 988} 989 990 991int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 992 const char *txtaddr) 993{ 994 if (wpa_s->ap_iface == NULL) 995 return -1; 996 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 997 txtaddr); 998} 999 1000 1001int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 1002 size_t buflen, int verbose) 1003{ 1004 char *pos = buf, *end = buf + buflen; 1005 int ret; 1006 struct hostapd_bss_config *conf; 1007 1008 if (wpa_s->ap_iface == NULL) 1009 return -1; 1010 1011 conf = wpa_s->ap_iface->bss[0]->conf; 1012 if (conf->wpa == 0) 1013 return 0; 1014 1015 ret = os_snprintf(pos, end - pos, 1016 "pairwise_cipher=%s\n" 1017 "group_cipher=%s\n" 1018 "key_mgmt=%s\n", 1019 wpa_cipher_txt(conf->rsn_pairwise), 1020 wpa_cipher_txt(conf->wpa_group), 1021 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 1022 conf->wpa)); 1023 if (ret < 0 || ret >= end - pos) 1024 return pos - buf; 1025 pos += ret; 1026 return pos - buf; 1027} 1028 1029#endif /* CONFIG_CTRL_IFACE */ 1030 1031 1032int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 1033{ 1034 struct hostapd_iface *iface = wpa_s->ap_iface; 1035 struct wpa_ssid *ssid = wpa_s->current_ssid; 1036 struct hostapd_data *hapd; 1037 1038 if (ssid == NULL || wpa_s->ap_iface == NULL || 1039 ssid->mode == WPAS_MODE_INFRA || 1040 ssid->mode == WPAS_MODE_IBSS) 1041 return -1; 1042 1043#ifdef CONFIG_P2P 1044 if (ssid->mode == WPAS_MODE_P2P_GO) 1045 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 1046 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 1047 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 1048 P2P_GROUP_FORMATION; 1049#endif /* CONFIG_P2P */ 1050 1051 hapd = iface->bss[0]; 1052 if (hapd->drv_priv == NULL) 1053 return -1; 1054 ieee802_11_set_beacons(iface); 1055 hostapd_set_ap_wps_ie(hapd); 1056 1057 return 0; 1058} 1059 1060 1061int ap_switch_channel(struct wpa_supplicant *wpa_s, 1062 struct csa_settings *settings) 1063{ 1064#ifdef NEED_AP_MLME 1065 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]) 1066 return -1; 1067 1068 return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings); 1069#else /* NEED_AP_MLME */ 1070 return -1; 1071#endif /* NEED_AP_MLME */ 1072} 1073 1074 1075int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos) 1076{ 1077 struct csa_settings settings; 1078 int ret = hostapd_parse_csa_settings(pos, &settings); 1079 1080 if (ret) 1081 return ret; 1082 1083 return ap_switch_channel(wpa_s, &settings); 1084} 1085 1086 1087void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 1088 int offset, int width, int cf1, int cf2) 1089{ 1090 if (!wpa_s->ap_iface) 1091 return; 1092 1093 wpa_s->assoc_freq = freq; 1094 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1); 1095} 1096 1097 1098int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 1099 const u8 *addr) 1100{ 1101 struct hostapd_data *hapd; 1102 struct hostapd_bss_config *conf; 1103 1104 if (!wpa_s->ap_iface) 1105 return -1; 1106 1107 if (addr) 1108 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1109 MAC2STR(addr)); 1110 else 1111 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1112 1113 hapd = wpa_s->ap_iface->bss[0]; 1114 conf = hapd->conf; 1115 1116 os_free(conf->accept_mac); 1117 conf->accept_mac = NULL; 1118 conf->num_accept_mac = 0; 1119 os_free(conf->deny_mac); 1120 conf->deny_mac = NULL; 1121 conf->num_deny_mac = 0; 1122 1123 if (addr == NULL) { 1124 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1125 return 0; 1126 } 1127 1128 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1129 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1130 if (conf->accept_mac == NULL) 1131 return -1; 1132 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1133 conf->num_accept_mac = 1; 1134 1135 return 0; 1136} 1137