ap.c revision 43cb578dfe2c492257636f6234a24178ed27789e
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 "crypto/dh_group5.h" 19#include "ap/hostapd.h" 20#include "ap/ap_config.h" 21#include "ap/ap_drv_ops.h" 22#ifdef NEED_AP_MLME 23#include "ap/ieee802_11.h" 24#endif /* NEED_AP_MLME */ 25#include "ap/beacon.h" 26#include "ap/ieee802_1x.h" 27#include "ap/wps_hostapd.h" 28#include "ap/ctrl_iface_ap.h" 29#include "wps/wps.h" 30#include "common/ieee802_11_defs.h" 31#include "config_ssid.h" 32#include "config.h" 33#include "wpa_supplicant_i.h" 34#include "driver_i.h" 35#include "p2p_supplicant.h" 36#include "ap.h" 37#include "ap/sta_info.h" 38#include "notify.h" 39 40 41#ifdef CONFIG_WPS 42static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 43#endif /* CONFIG_WPS */ 44 45 46#ifdef CONFIG_IEEE80211N 47static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s, 48 struct hostapd_config *conf, 49 struct hostapd_hw_modes *mode) 50{ 51#ifdef CONFIG_P2P 52 u8 center_chan = 0; 53 u8 channel = conf->channel; 54 55 if (!conf->secondary_channel) 56 goto no_vht; 57 58 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel); 59 if (!center_chan) 60 goto no_vht; 61 62 /* Use 80 MHz channel */ 63 conf->vht_oper_chwidth = 1; 64 conf->vht_oper_centr_freq_seg0_idx = center_chan; 65 return; 66 67no_vht: 68 conf->vht_oper_centr_freq_seg0_idx = 69 channel + conf->secondary_channel * 2; 70#else /* CONFIG_P2P */ 71 conf->vht_oper_centr_freq_seg0_idx = 72 conf->channel + conf->secondary_channel * 2; 73#endif /* CONFIG_P2P */ 74} 75#endif /* CONFIG_IEEE80211N */ 76 77 78static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s, 79 struct wpa_ssid *ssid, 80 struct hostapd_config *conf) 81{ 82 struct hostapd_bss_config *bss = conf->bss[0]; 83 84 conf->driver = wpa_s->driver; 85 86 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface)); 87 88 conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency, 89 &conf->channel); 90 if (conf->hw_mode == NUM_HOSTAPD_MODES) { 91 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", 92 ssid->frequency); 93 return -1; 94 } 95 96 /* TODO: enable HT40 if driver supports it; 97 * drop to 11b if driver does not support 11g */ 98 99#ifdef CONFIG_IEEE80211N 100 /* 101 * Enable HT20 if the driver supports it, by setting conf->ieee80211n 102 * and a mask of allowed capabilities within conf->ht_capab. 103 * Using default config settings for: conf->ht_op_mode_fixed, 104 * conf->secondary_channel, conf->require_ht 105 */ 106 if (wpa_s->hw.modes) { 107 struct hostapd_hw_modes *mode = NULL; 108 int i, no_ht = 0; 109 for (i = 0; i < wpa_s->hw.num_modes; i++) { 110 if (wpa_s->hw.modes[i].mode == conf->hw_mode) { 111 mode = &wpa_s->hw.modes[i]; 112 break; 113 } 114 } 115 116#ifdef CONFIG_HT_OVERRIDES 117 if (ssid->disable_ht) { 118 conf->ieee80211n = 0; 119 conf->ht_capab = 0; 120 no_ht = 1; 121 } 122#endif /* CONFIG_HT_OVERRIDES */ 123 124 if (!no_ht && mode && mode->ht_capab) { 125 conf->ieee80211n = 1; 126#ifdef CONFIG_P2P 127 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && 128 (mode->ht_capab & 129 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && 130 ssid->ht40) 131 conf->secondary_channel = 132 wpas_p2p_get_ht40_mode(wpa_s, mode, 133 conf->channel); 134 if (conf->secondary_channel) 135 conf->ht_capab |= 136 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET; 137#endif /* CONFIG_P2P */ 138 139 /* 140 * white-list capabilities that won't cause issues 141 * to connecting stations, while leaving the current 142 * capabilities intact (currently disabled SMPS). 143 */ 144 conf->ht_capab |= mode->ht_capab & 145 (HT_CAP_INFO_GREEN_FIELD | 146 HT_CAP_INFO_SHORT_GI20MHZ | 147 HT_CAP_INFO_SHORT_GI40MHZ | 148 HT_CAP_INFO_RX_STBC_MASK | 149 HT_CAP_INFO_MAX_AMSDU_SIZE); 150 151 if (mode->vht_capab && ssid->vht) { 152 conf->ieee80211ac = 1; 153 wpas_conf_ap_vht(wpa_s, conf, mode); 154 } 155 } 156 } 157#endif /* CONFIG_IEEE80211N */ 158 159#ifdef CONFIG_P2P 160 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G && 161 (ssid->mode == WPAS_MODE_P2P_GO || 162 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) { 163 /* Remove 802.11b rates from supported and basic rate sets */ 164 int *list = os_malloc(4 * sizeof(int)); 165 if (list) { 166 list[0] = 60; 167 list[1] = 120; 168 list[2] = 240; 169 list[3] = -1; 170 } 171 conf->basic_rates = list; 172 173 list = os_malloc(9 * sizeof(int)); 174 if (list) { 175 list[0] = 60; 176 list[1] = 90; 177 list[2] = 120; 178 list[3] = 180; 179 list[4] = 240; 180 list[5] = 360; 181 list[6] = 480; 182 list[7] = 540; 183 list[8] = -1; 184 } 185 conf->supported_rates = list; 186 } 187 188 bss->isolate = !wpa_s->conf->p2p_intra_bss; 189 bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk; 190 191 if (ssid->p2p_group) { 192 os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4); 193 os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask, 194 4); 195 os_memcpy(bss->ip_addr_start, 196 wpa_s->parent->conf->ip_addr_start, 4); 197 os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end, 198 4); 199 } 200#endif /* CONFIG_P2P */ 201 202 if (ssid->ssid_len == 0) { 203 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 204 return -1; 205 } 206 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); 207 bss->ssid.ssid_len = ssid->ssid_len; 208 bss->ssid.ssid_set = 1; 209 210 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid; 211 212 if (ssid->auth_alg) 213 bss->auth_algs = ssid->auth_alg; 214 215 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) 216 bss->wpa = ssid->proto; 217 bss->wpa_key_mgmt = ssid->key_mgmt; 218 bss->wpa_pairwise = ssid->pairwise_cipher; 219 if (ssid->psk_set) { 220 os_free(bss->ssid.wpa_psk); 221 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 222 if (bss->ssid.wpa_psk == NULL) 223 return -1; 224 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); 225 bss->ssid.wpa_psk->group = 1; 226 } else if (ssid->passphrase) { 227 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); 228 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] || 229 ssid->wep_key_len[2] || ssid->wep_key_len[3]) { 230 struct hostapd_wep_keys *wep = &bss->ssid.wep; 231 int i; 232 for (i = 0; i < NUM_WEP_KEYS; i++) { 233 if (ssid->wep_key_len[i] == 0) 234 continue; 235 wep->key[i] = os_malloc(ssid->wep_key_len[i]); 236 if (wep->key[i] == NULL) 237 return -1; 238 os_memcpy(wep->key[i], ssid->wep_key[i], 239 ssid->wep_key_len[i]); 240 wep->len[i] = ssid->wep_key_len[i]; 241 } 242 wep->idx = ssid->wep_tx_keyidx; 243 wep->keys_set = 1; 244 } 245 246 if (ssid->ap_max_inactivity) 247 bss->ap_max_inactivity = ssid->ap_max_inactivity; 248 249 if (ssid->dtim_period) 250 bss->dtim_period = ssid->dtim_period; 251 else if (wpa_s->conf->dtim_period) 252 bss->dtim_period = wpa_s->conf->dtim_period; 253 254 if (ssid->beacon_int) 255 conf->beacon_int = ssid->beacon_int; 256 else if (wpa_s->conf->beacon_int) 257 conf->beacon_int = wpa_s->conf->beacon_int; 258 259 if ((bss->wpa & 2) && bss->rsn_pairwise == 0) 260 bss->rsn_pairwise = bss->wpa_pairwise; 261 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise, 262 bss->rsn_pairwise); 263 264 if (bss->wpa && bss->ieee802_1x) 265 bss->ssid.security_policy = SECURITY_WPA; 266 else if (bss->wpa) 267 bss->ssid.security_policy = SECURITY_WPA_PSK; 268 else if (bss->ieee802_1x) { 269 int cipher = WPA_CIPHER_NONE; 270 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 271 bss->ssid.wep.default_len = bss->default_wep_key_len; 272 if (bss->default_wep_key_len) 273 cipher = bss->default_wep_key_len >= 13 ? 274 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 275 bss->wpa_group = cipher; 276 bss->wpa_pairwise = cipher; 277 bss->rsn_pairwise = cipher; 278 } else if (bss->ssid.wep.keys_set) { 279 int cipher = WPA_CIPHER_WEP40; 280 if (bss->ssid.wep.len[0] >= 13) 281 cipher = WPA_CIPHER_WEP104; 282 bss->ssid.security_policy = SECURITY_STATIC_WEP; 283 bss->wpa_group = cipher; 284 bss->wpa_pairwise = cipher; 285 bss->rsn_pairwise = cipher; 286 } else { 287 bss->ssid.security_policy = SECURITY_PLAINTEXT; 288 bss->wpa_group = WPA_CIPHER_NONE; 289 bss->wpa_pairwise = WPA_CIPHER_NONE; 290 bss->rsn_pairwise = WPA_CIPHER_NONE; 291 } 292 293 if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) && 294 (bss->wpa_group == WPA_CIPHER_CCMP || 295 bss->wpa_group == WPA_CIPHER_GCMP || 296 bss->wpa_group == WPA_CIPHER_CCMP_256 || 297 bss->wpa_group == WPA_CIPHER_GCMP_256)) { 298 /* 299 * Strong ciphers do not need frequent rekeying, so increase 300 * the default GTK rekeying period to 24 hours. 301 */ 302 bss->wpa_group_rekey = 86400; 303 } 304 305#ifdef CONFIG_IEEE80211W 306 if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT) 307 bss->ieee80211w = ssid->ieee80211w; 308#endif /* CONFIG_IEEE80211W */ 309 310#ifdef CONFIG_WPS 311 /* 312 * Enable WPS by default for open and WPA/WPA2-Personal network, but 313 * require user interaction to actually use it. Only the internal 314 * Registrar is supported. 315 */ 316 if (bss->ssid.security_policy != SECURITY_WPA_PSK && 317 bss->ssid.security_policy != SECURITY_PLAINTEXT) 318 goto no_wps; 319 if (bss->ssid.security_policy == SECURITY_WPA_PSK && 320 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2))) 321 goto no_wps; /* WPS2 does not allow WPA/TKIP-only 322 * configuration */ 323 bss->eap_server = 1; 324 325 if (!ssid->ignore_broadcast_ssid) 326 bss->wps_state = 2; 327 328 bss->ap_setup_locked = 2; 329 if (wpa_s->conf->config_methods) 330 bss->config_methods = os_strdup(wpa_s->conf->config_methods); 331 os_memcpy(bss->device_type, wpa_s->conf->device_type, 332 WPS_DEV_TYPE_LEN); 333 if (wpa_s->conf->device_name) { 334 bss->device_name = os_strdup(wpa_s->conf->device_name); 335 bss->friendly_name = os_strdup(wpa_s->conf->device_name); 336 } 337 if (wpa_s->conf->manufacturer) 338 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer); 339 if (wpa_s->conf->model_name) 340 bss->model_name = os_strdup(wpa_s->conf->model_name); 341 if (wpa_s->conf->model_number) 342 bss->model_number = os_strdup(wpa_s->conf->model_number); 343 if (wpa_s->conf->serial_number) 344 bss->serial_number = os_strdup(wpa_s->conf->serial_number); 345 if (is_nil_uuid(wpa_s->conf->uuid)) 346 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN); 347 else 348 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 349 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4); 350 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1; 351no_wps: 352#endif /* CONFIG_WPS */ 353 354 if (wpa_s->max_stations && 355 wpa_s->max_stations < wpa_s->conf->max_num_sta) 356 bss->max_num_sta = wpa_s->max_stations; 357 else 358 bss->max_num_sta = wpa_s->conf->max_num_sta; 359 360 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack; 361 362 if (wpa_s->conf->ap_vendor_elements) { 363 bss->vendor_elements = 364 wpabuf_dup(wpa_s->conf->ap_vendor_elements); 365 } 366 367 return 0; 368} 369 370 371static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 372{ 373#ifdef CONFIG_P2P 374 struct wpa_supplicant *wpa_s = ctx; 375 const struct ieee80211_mgmt *mgmt; 376 377 mgmt = (const struct ieee80211_mgmt *) buf; 378 if (len < IEEE80211_HDRLEN + 1) 379 return; 380 if (mgmt->u.action.category != WLAN_ACTION_PUBLIC) 381 return; 382 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 383 mgmt->u.action.category, 384 buf + IEEE80211_HDRLEN + 1, 385 len - IEEE80211_HDRLEN - 1, freq); 386#endif /* CONFIG_P2P */ 387} 388 389 390static void ap_wps_event_cb(void *ctx, enum wps_event event, 391 union wps_event_data *data) 392{ 393#ifdef CONFIG_P2P 394 struct wpa_supplicant *wpa_s = ctx; 395 396 if (event == WPS_EV_FAIL) { 397 struct wps_event_fail *fail = &data->fail; 398 399 if (wpa_s->parent && wpa_s->parent != wpa_s && 400 wpa_s == wpa_s->global->p2p_group_formation) { 401 /* 402 * src/ap/wps_hostapd.c has already sent this on the 403 * main interface, so only send on the parent interface 404 * here if needed. 405 */ 406 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 407 "msg=%d config_error=%d", 408 fail->msg, fail->config_error); 409 } 410 wpas_p2p_wps_failed(wpa_s, fail); 411 } 412#endif /* CONFIG_P2P */ 413} 414 415 416static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr, 417 int authorized, const u8 *p2p_dev_addr) 418{ 419 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr); 420} 421 422 423#ifdef CONFIG_P2P 424static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr, 425 const u8 *psk, size_t psk_len) 426{ 427 428 struct wpa_supplicant *wpa_s = ctx; 429 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL) 430 return; 431 wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len); 432} 433#endif /* CONFIG_P2P */ 434 435 436static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq) 437{ 438#ifdef CONFIG_P2P 439 struct wpa_supplicant *wpa_s = ctx; 440 const struct ieee80211_mgmt *mgmt; 441 442 mgmt = (const struct ieee80211_mgmt *) buf; 443 if (len < IEEE80211_HDRLEN + 1) 444 return -1; 445 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 446 mgmt->u.action.category, 447 buf + IEEE80211_HDRLEN + 1, 448 len - IEEE80211_HDRLEN - 1, freq); 449#endif /* CONFIG_P2P */ 450 return 0; 451} 452 453 454static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da, 455 const u8 *bssid, const u8 *ie, size_t ie_len, 456 int ssi_signal) 457{ 458 struct wpa_supplicant *wpa_s = ctx; 459 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len, 460 ssi_signal); 461} 462 463 464static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 465 const u8 *uuid_e) 466{ 467 struct wpa_supplicant *wpa_s = ctx; 468 wpas_p2p_wps_success(wpa_s, mac_addr, 1); 469} 470 471 472static void wpas_ap_configured_cb(void *ctx) 473{ 474 struct wpa_supplicant *wpa_s = ctx; 475 476 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 477 478 if (wpa_s->ap_configured_cb) 479 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx, 480 wpa_s->ap_configured_cb_data); 481} 482 483 484int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, 485 struct wpa_ssid *ssid) 486{ 487 struct wpa_driver_associate_params params; 488 struct hostapd_iface *hapd_iface; 489 struct hostapd_config *conf; 490 size_t i; 491 492 if (ssid->ssid == NULL || ssid->ssid_len == 0) { 493 wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); 494 return -1; 495 } 496 497 wpa_supplicant_ap_deinit(wpa_s); 498 499 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", 500 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 501 502 os_memset(¶ms, 0, sizeof(params)); 503 params.ssid = ssid->ssid; 504 params.ssid_len = ssid->ssid_len; 505 switch (ssid->mode) { 506 case WPAS_MODE_AP: 507 case WPAS_MODE_P2P_GO: 508 case WPAS_MODE_P2P_GROUP_FORMATION: 509 params.mode = IEEE80211_MODE_AP; 510 break; 511 default: 512 return -1; 513 } 514 if (ssid->frequency == 0) 515 ssid->frequency = 2462; /* default channel 11 */ 516 params.freq = ssid->frequency; 517 518 params.wpa_proto = ssid->proto; 519 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) 520 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; 521 else 522 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; 523 params.key_mgmt_suite = wpa_s->key_mgmt; 524 525 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 526 1); 527 if (wpa_s->pairwise_cipher < 0) { 528 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " 529 "cipher."); 530 return -1; 531 } 532 params.pairwise_suite = wpa_s->pairwise_cipher; 533 params.group_suite = params.pairwise_suite; 534 535#ifdef CONFIG_P2P 536 if (ssid->mode == WPAS_MODE_P2P_GO || 537 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 538 params.p2p = 1; 539#endif /* CONFIG_P2P */ 540 541 if (wpa_s->parent->set_ap_uapsd) 542 params.uapsd = wpa_s->parent->ap_uapsd; 543 else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD)) 544 params.uapsd = 1; /* mandatory for P2P GO */ 545 else 546 params.uapsd = -1; 547 548 if (wpa_drv_associate(wpa_s, ¶ms) < 0) { 549 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); 550 return -1; 551 } 552 553 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); 554 if (hapd_iface == NULL) 555 return -1; 556 hapd_iface->owner = wpa_s; 557 hapd_iface->drv_flags = wpa_s->drv_flags; 558 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads; 559 hapd_iface->extended_capa = wpa_s->extended_capa; 560 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask; 561 hapd_iface->extended_capa_len = wpa_s->extended_capa_len; 562 563 wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); 564 if (conf == NULL) { 565 wpa_supplicant_ap_deinit(wpa_s); 566 return -1; 567 } 568 569 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params, 570 wpa_s->conf->wmm_ac_params, 571 sizeof(wpa_s->conf->wmm_ac_params)); 572 573 if (params.uapsd > 0) { 574 conf->bss[0]->wmm_enabled = 1; 575 conf->bss[0]->wmm_uapsd = 1; 576 } 577 578 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { 579 wpa_printf(MSG_ERROR, "Failed to create AP configuration"); 580 wpa_supplicant_ap_deinit(wpa_s); 581 return -1; 582 } 583 584#ifdef CONFIG_P2P 585 if (ssid->mode == WPAS_MODE_P2P_GO) 586 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 587 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 588 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 589 P2P_GROUP_FORMATION; 590#endif /* CONFIG_P2P */ 591 592 hapd_iface->num_bss = conf->num_bss; 593 hapd_iface->bss = os_calloc(conf->num_bss, 594 sizeof(struct hostapd_data *)); 595 if (hapd_iface->bss == NULL) { 596 wpa_supplicant_ap_deinit(wpa_s); 597 return -1; 598 } 599 600 for (i = 0; i < conf->num_bss; i++) { 601 hapd_iface->bss[i] = 602 hostapd_alloc_bss_data(hapd_iface, conf, 603 conf->bss[i]); 604 if (hapd_iface->bss[i] == NULL) { 605 wpa_supplicant_ap_deinit(wpa_s); 606 return -1; 607 } 608 609 hapd_iface->bss[i]->msg_ctx = wpa_s; 610 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent; 611 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx; 612 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s; 613 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx; 614 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s; 615 hostapd_register_probereq_cb(hapd_iface->bss[i], 616 ap_probe_req_rx, wpa_s); 617 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb; 618 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s; 619 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb; 620 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s; 621 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb; 622 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s; 623#ifdef CONFIG_P2P 624 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb; 625 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s; 626 hapd_iface->bss[i]->p2p = wpa_s->global->p2p; 627 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s, 628 ssid); 629#endif /* CONFIG_P2P */ 630 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb; 631 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s; 632 } 633 634 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN); 635 hapd_iface->bss[0]->driver = wpa_s->driver; 636 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv; 637 638 wpa_s->current_ssid = ssid; 639 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 640 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN); 641 wpa_s->assoc_freq = ssid->frequency; 642 643 if (hostapd_setup_interface(wpa_s->ap_iface)) { 644 wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); 645 wpa_supplicant_ap_deinit(wpa_s); 646 return -1; 647 } 648 649 return 0; 650} 651 652 653void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) 654{ 655#ifdef CONFIG_WPS 656 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 657#endif /* CONFIG_WPS */ 658 659 if (wpa_s->ap_iface == NULL) 660 return; 661 662 wpa_s->current_ssid = NULL; 663 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 664 wpa_s->assoc_freq = 0; 665 wpas_p2p_ap_deinit(wpa_s); 666 wpa_s->ap_iface->driver_ap_teardown = 667 !!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT); 668 669 hostapd_interface_deinit(wpa_s->ap_iface); 670 hostapd_interface_free(wpa_s->ap_iface); 671 wpa_s->ap_iface = NULL; 672 wpa_drv_deinit_ap(wpa_s); 673} 674 675 676void ap_tx_status(void *ctx, const u8 *addr, 677 const u8 *buf, size_t len, int ack) 678{ 679#ifdef NEED_AP_MLME 680 struct wpa_supplicant *wpa_s = ctx; 681 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); 682#endif /* NEED_AP_MLME */ 683} 684 685 686void ap_eapol_tx_status(void *ctx, const u8 *dst, 687 const u8 *data, size_t len, int ack) 688{ 689#ifdef NEED_AP_MLME 690 struct wpa_supplicant *wpa_s = ctx; 691 if (!wpa_s->ap_iface) 692 return; 693 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack); 694#endif /* NEED_AP_MLME */ 695} 696 697 698void ap_client_poll_ok(void *ctx, const u8 *addr) 699{ 700#ifdef NEED_AP_MLME 701 struct wpa_supplicant *wpa_s = ctx; 702 if (wpa_s->ap_iface) 703 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr); 704#endif /* NEED_AP_MLME */ 705} 706 707 708void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds) 709{ 710#ifdef NEED_AP_MLME 711 struct wpa_supplicant *wpa_s = ctx; 712 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds); 713#endif /* NEED_AP_MLME */ 714} 715 716 717void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt) 718{ 719#ifdef NEED_AP_MLME 720 struct wpa_supplicant *wpa_s = ctx; 721 struct hostapd_frame_info fi; 722 os_memset(&fi, 0, sizeof(fi)); 723 fi.datarate = rx_mgmt->datarate; 724 fi.ssi_signal = rx_mgmt->ssi_signal; 725 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame, 726 rx_mgmt->frame_len, &fi); 727#endif /* NEED_AP_MLME */ 728} 729 730 731void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok) 732{ 733#ifdef NEED_AP_MLME 734 struct wpa_supplicant *wpa_s = ctx; 735 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); 736#endif /* NEED_AP_MLME */ 737} 738 739 740void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s, 741 const u8 *src_addr, const u8 *buf, size_t len) 742{ 743 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len); 744} 745 746 747#ifdef CONFIG_WPS 748 749int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 750 const u8 *p2p_dev_addr) 751{ 752 if (!wpa_s->ap_iface) 753 return -1; 754 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0], 755 p2p_dev_addr); 756} 757 758 759int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s) 760{ 761 struct wps_registrar *reg; 762 int reg_sel = 0, wps_sta = 0; 763 764 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps) 765 return -1; 766 767 reg = wpa_s->ap_iface->bss[0]->wps->registrar; 768 reg_sel = wps_registrar_wps_cancel(reg); 769 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0], 770 ap_sta_wps_cancel, NULL); 771 772 if (!reg_sel && !wps_sta) { 773 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this " 774 "time"); 775 return -1; 776 } 777 778 /* 779 * There are 2 cases to return wps cancel as success: 780 * 1. When wps cancel was initiated but no connection has been 781 * established with client yet. 782 * 2. Client is in the middle of exchanging WPS messages. 783 */ 784 785 return 0; 786} 787 788 789int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 790 const char *pin, char *buf, size_t buflen, 791 int timeout) 792{ 793 int ret, ret_len = 0; 794 795 if (!wpa_s->ap_iface) 796 return -1; 797 798 if (pin == NULL) { 799 unsigned int rpin = wps_generate_pin(); 800 ret_len = os_snprintf(buf, buflen, "%08d", rpin); 801 pin = buf; 802 } else 803 ret_len = os_snprintf(buf, buflen, "%s", pin); 804 805 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin, 806 timeout); 807 if (ret) 808 return -1; 809 return ret_len; 810} 811 812 813static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 814{ 815 struct wpa_supplicant *wpa_s = eloop_data; 816 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 817 wpas_wps_ap_pin_disable(wpa_s); 818} 819 820 821static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout) 822{ 823 struct hostapd_data *hapd; 824 825 if (wpa_s->ap_iface == NULL) 826 return; 827 hapd = wpa_s->ap_iface->bss[0]; 828 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 829 hapd->ap_pin_failures = 0; 830 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 831 if (timeout > 0) 832 eloop_register_timeout(timeout, 0, 833 wpas_wps_ap_pin_timeout, wpa_s, NULL); 834} 835 836 837void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s) 838{ 839 struct hostapd_data *hapd; 840 841 if (wpa_s->ap_iface == NULL) 842 return; 843 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 844 hapd = wpa_s->ap_iface->bss[0]; 845 os_free(hapd->conf->ap_pin); 846 hapd->conf->ap_pin = NULL; 847 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL); 848} 849 850 851const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout) 852{ 853 struct hostapd_data *hapd; 854 unsigned int pin; 855 char pin_txt[9]; 856 857 if (wpa_s->ap_iface == NULL) 858 return NULL; 859 hapd = wpa_s->ap_iface->bss[0]; 860 pin = wps_generate_pin(); 861 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin); 862 os_free(hapd->conf->ap_pin); 863 hapd->conf->ap_pin = os_strdup(pin_txt); 864 if (hapd->conf->ap_pin == NULL) 865 return NULL; 866 wpas_wps_ap_pin_enable(wpa_s, timeout); 867 868 return hapd->conf->ap_pin; 869} 870 871 872const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s) 873{ 874 struct hostapd_data *hapd; 875 if (wpa_s->ap_iface == NULL) 876 return NULL; 877 hapd = wpa_s->ap_iface->bss[0]; 878 return hapd->conf->ap_pin; 879} 880 881 882int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin, 883 int timeout) 884{ 885 struct hostapd_data *hapd; 886 char pin_txt[9]; 887 int ret; 888 889 if (wpa_s->ap_iface == NULL) 890 return -1; 891 hapd = wpa_s->ap_iface->bss[0]; 892 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin); 893 if (ret < 0 || ret >= (int) sizeof(pin_txt)) 894 return -1; 895 os_free(hapd->conf->ap_pin); 896 hapd->conf->ap_pin = os_strdup(pin_txt); 897 if (hapd->conf->ap_pin == NULL) 898 return -1; 899 wpas_wps_ap_pin_enable(wpa_s, timeout); 900 901 return 0; 902} 903 904 905void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s) 906{ 907 struct hostapd_data *hapd; 908 909 if (wpa_s->ap_iface == NULL) 910 return; 911 hapd = wpa_s->ap_iface->bss[0]; 912 913 /* 914 * Registrar failed to prove its knowledge of the AP PIN. Disable AP 915 * PIN if this happens multiple times to slow down brute force attacks. 916 */ 917 hapd->ap_pin_failures++; 918 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 919 hapd->ap_pin_failures); 920 if (hapd->ap_pin_failures < 3) 921 return; 922 923 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN"); 924 hapd->ap_pin_failures = 0; 925 os_free(hapd->conf->ap_pin); 926 hapd->conf->ap_pin = NULL; 927} 928 929 930#ifdef CONFIG_WPS_NFC 931 932struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 933 int ndef) 934{ 935 struct hostapd_data *hapd; 936 937 if (wpa_s->ap_iface == NULL) 938 return NULL; 939 hapd = wpa_s->ap_iface->bss[0]; 940 return hostapd_wps_nfc_config_token(hapd, ndef); 941} 942 943 944struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 945 int ndef) 946{ 947 struct hostapd_data *hapd; 948 949 if (wpa_s->ap_iface == NULL) 950 return NULL; 951 hapd = wpa_s->ap_iface->bss[0]; 952 return hostapd_wps_nfc_hs_cr(hapd, ndef); 953} 954 955 956int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 957 const struct wpabuf *req, 958 const struct wpabuf *sel) 959{ 960 struct hostapd_data *hapd; 961 962 if (wpa_s->ap_iface == NULL) 963 return -1; 964 hapd = wpa_s->ap_iface->bss[0]; 965 return hostapd_wps_nfc_report_handover(hapd, req, sel); 966} 967 968#endif /* CONFIG_WPS_NFC */ 969 970#endif /* CONFIG_WPS */ 971 972 973#ifdef CONFIG_CTRL_IFACE 974 975int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s, 976 char *buf, size_t buflen) 977{ 978 if (wpa_s->ap_iface == NULL) 979 return -1; 980 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0], 981 buf, buflen); 982} 983 984 985int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr, 986 char *buf, size_t buflen) 987{ 988 if (wpa_s->ap_iface == NULL) 989 return -1; 990 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr, 991 buf, buflen); 992} 993 994 995int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr, 996 char *buf, size_t buflen) 997{ 998 if (wpa_s->ap_iface == NULL) 999 return -1; 1000 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr, 1001 buf, buflen); 1002} 1003 1004 1005int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s, 1006 const char *txtaddr) 1007{ 1008 if (wpa_s->ap_iface == NULL) 1009 return -1; 1010 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0], 1011 txtaddr); 1012} 1013 1014 1015int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s, 1016 const char *txtaddr) 1017{ 1018 if (wpa_s->ap_iface == NULL) 1019 return -1; 1020 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0], 1021 txtaddr); 1022} 1023 1024 1025int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf, 1026 size_t buflen, int verbose) 1027{ 1028 char *pos = buf, *end = buf + buflen; 1029 int ret; 1030 struct hostapd_bss_config *conf; 1031 1032 if (wpa_s->ap_iface == NULL) 1033 return -1; 1034 1035 conf = wpa_s->ap_iface->bss[0]->conf; 1036 if (conf->wpa == 0) 1037 return 0; 1038 1039 ret = os_snprintf(pos, end - pos, 1040 "pairwise_cipher=%s\n" 1041 "group_cipher=%s\n" 1042 "key_mgmt=%s\n", 1043 wpa_cipher_txt(conf->rsn_pairwise), 1044 wpa_cipher_txt(conf->wpa_group), 1045 wpa_key_mgmt_txt(conf->wpa_key_mgmt, 1046 conf->wpa)); 1047 if (ret < 0 || ret >= end - pos) 1048 return pos - buf; 1049 pos += ret; 1050 return pos - buf; 1051} 1052 1053#endif /* CONFIG_CTRL_IFACE */ 1054 1055 1056int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s) 1057{ 1058 struct hostapd_iface *iface = wpa_s->ap_iface; 1059 struct wpa_ssid *ssid = wpa_s->current_ssid; 1060 struct hostapd_data *hapd; 1061 1062 if (ssid == NULL || wpa_s->ap_iface == NULL || 1063 ssid->mode == WPAS_MODE_INFRA || 1064 ssid->mode == WPAS_MODE_IBSS) 1065 return -1; 1066 1067#ifdef CONFIG_P2P 1068 if (ssid->mode == WPAS_MODE_P2P_GO) 1069 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER; 1070 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) 1071 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER | 1072 P2P_GROUP_FORMATION; 1073#endif /* CONFIG_P2P */ 1074 1075 hapd = iface->bss[0]; 1076 if (hapd->drv_priv == NULL) 1077 return -1; 1078 ieee802_11_set_beacons(iface); 1079 hostapd_set_ap_wps_ie(hapd); 1080 1081 return 0; 1082} 1083 1084 1085int ap_switch_channel(struct wpa_supplicant *wpa_s, 1086 struct csa_settings *settings) 1087{ 1088#ifdef NEED_AP_MLME 1089 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]) 1090 return -1; 1091 1092 return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings); 1093#else /* NEED_AP_MLME */ 1094 return -1; 1095#endif /* NEED_AP_MLME */ 1096} 1097 1098 1099int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos) 1100{ 1101 struct csa_settings settings; 1102 int ret = hostapd_parse_csa_settings(pos, &settings); 1103 1104 if (ret) 1105 return ret; 1106 1107 return ap_switch_channel(wpa_s, &settings); 1108} 1109 1110 1111void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht, 1112 int offset, int width, int cf1, int cf2) 1113{ 1114 if (!wpa_s->ap_iface) 1115 return; 1116 1117 wpa_s->assoc_freq = freq; 1118 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1); 1119} 1120 1121 1122int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s, 1123 const u8 *addr) 1124{ 1125 struct hostapd_data *hapd; 1126 struct hostapd_bss_config *conf; 1127 1128 if (!wpa_s->ap_iface) 1129 return -1; 1130 1131 if (addr) 1132 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR, 1133 MAC2STR(addr)); 1134 else 1135 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter"); 1136 1137 hapd = wpa_s->ap_iface->bss[0]; 1138 conf = hapd->conf; 1139 1140 os_free(conf->accept_mac); 1141 conf->accept_mac = NULL; 1142 conf->num_accept_mac = 0; 1143 os_free(conf->deny_mac); 1144 conf->deny_mac = NULL; 1145 conf->num_deny_mac = 0; 1146 1147 if (addr == NULL) { 1148 conf->macaddr_acl = ACCEPT_UNLESS_DENIED; 1149 return 0; 1150 } 1151 1152 conf->macaddr_acl = DENY_UNLESS_ACCEPTED; 1153 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry)); 1154 if (conf->accept_mac == NULL) 1155 return -1; 1156 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN); 1157 conf->num_accept_mac = 1; 1158 1159 return 0; 1160} 1161 1162 1163#ifdef CONFIG_WPS_NFC 1164int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id, 1165 const struct wpabuf *pw, const u8 *pubkey_hash) 1166{ 1167 struct hostapd_data *hapd; 1168 struct wps_context *wps; 1169 1170 if (!wpa_s->ap_iface) 1171 return -1; 1172 hapd = wpa_s->ap_iface->bss[0]; 1173 wps = hapd->wps; 1174 1175 if (wpa_s->parent->conf->wps_nfc_dh_pubkey == NULL || 1176 wpa_s->parent->conf->wps_nfc_dh_privkey == NULL) { 1177 wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known"); 1178 return -1; 1179 } 1180 1181 dh5_free(wps->dh_ctx); 1182 wpabuf_free(wps->dh_pubkey); 1183 wpabuf_free(wps->dh_privkey); 1184 wps->dh_privkey = wpabuf_dup( 1185 wpa_s->parent->conf->wps_nfc_dh_privkey); 1186 wps->dh_pubkey = wpabuf_dup( 1187 wpa_s->parent->conf->wps_nfc_dh_pubkey); 1188 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 1189 wps->dh_ctx = NULL; 1190 wpabuf_free(wps->dh_pubkey); 1191 wps->dh_pubkey = NULL; 1192 wpabuf_free(wps->dh_privkey); 1193 wps->dh_privkey = NULL; 1194 return -1; 1195 } 1196 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 1197 if (wps->dh_ctx == NULL) 1198 return -1; 1199 1200 return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash, 1201 pw_id, 1202 pw ? wpabuf_head(pw) : NULL, 1203 pw ? wpabuf_len(pw) : 0, 1); 1204} 1205#endif /* CONFIG_WPS_NFC */ 1206