Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * wpa_supplicant / WPS integration |
| 3 | * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Alternatively, this software may be distributed under the terms of BSD |
| 10 | * license. |
| 11 | * |
| 12 | * See README and COPYING for more details. |
| 13 | */ |
| 14 | |
| 15 | #include "includes.h" |
| 16 | |
| 17 | #include "common.h" |
| 18 | #include "eloop.h" |
| 19 | #include "uuid.h" |
| 20 | #include "crypto/dh_group5.h" |
| 21 | #include "common/ieee802_11_defs.h" |
| 22 | #include "common/ieee802_11_common.h" |
| 23 | #include "common/wpa_common.h" |
| 24 | #include "common/wpa_ctrl.h" |
| 25 | #include "eap_common/eap_wsc_common.h" |
| 26 | #include "eap_peer/eap.h" |
| 27 | #include "rsn_supp/wpa.h" |
| 28 | #include "config.h" |
| 29 | #include "wpa_supplicant_i.h" |
| 30 | #include "driver_i.h" |
| 31 | #include "notify.h" |
| 32 | #include "blacklist.h" |
| 33 | #include "bss.h" |
| 34 | #include "scan.h" |
| 35 | #include "ap.h" |
| 36 | #include "p2p/p2p.h" |
| 37 | #include "p2p_supplicant.h" |
| 38 | #include "wps_supplicant.h" |
| 39 | |
| 40 | |
| 41 | #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG |
| 42 | #define WPS_PIN_SCAN_IGNORE_SEL_REG 3 |
| 43 | #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */ |
| 44 | |
| 45 | static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx); |
| 46 | static void wpas_clear_wps(struct wpa_supplicant *wpa_s); |
| 47 | |
| 48 | |
| 49 | int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) |
| 50 | { |
| 51 | if (!wpa_s->wps_success && |
| 52 | wpa_s->current_ssid && |
| 53 | eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { |
| 54 | const u8 *bssid = wpa_s->bssid; |
| 55 | if (is_zero_ether_addr(bssid)) |
| 56 | bssid = wpa_s->pending_bssid; |
| 57 | |
| 58 | wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR |
| 59 | " did not succeed - continue trying to find " |
| 60 | "suitable AP", MAC2STR(bssid)); |
| 61 | wpa_blacklist_add(wpa_s, bssid); |
| 62 | |
| 63 | wpa_supplicant_deauthenticate(wpa_s, |
| 64 | WLAN_REASON_DEAUTH_LEAVING); |
| 65 | wpa_s->reassociate = 1; |
| 66 | wpa_supplicant_req_scan(wpa_s, |
| 67 | wpa_s->blacklist_cleared ? 5 : 0, 0); |
| 68 | wpa_s->blacklist_cleared = 0; |
| 69 | return 1; |
| 70 | } |
| 71 | |
| 72 | eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); |
| 73 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success) |
| 74 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL); |
| 75 | |
| 76 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && |
| 77 | !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { |
| 78 | int disabled = wpa_s->current_ssid->disabled; |
| 79 | wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " |
| 80 | "try to associate with the received credential"); |
| 81 | wpa_supplicant_deauthenticate(wpa_s, |
| 82 | WLAN_REASON_DEAUTH_LEAVING); |
| 83 | if (disabled) { |
| 84 | wpa_printf(MSG_DEBUG, "WPS: Current network is " |
| 85 | "disabled - wait for user to enable"); |
| 86 | return 1; |
| 87 | } |
| 88 | wpa_s->after_wps = 5; |
| 89 | wpa_s->wps_freq = wpa_s->assoc_freq; |
| 90 | wpa_s->reassociate = 1; |
| 91 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 92 | return 1; |
| 93 | } |
| 94 | |
| 95 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) { |
| 96 | wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting " |
| 97 | "for external credential processing"); |
| 98 | wpas_clear_wps(wpa_s); |
| 99 | wpa_supplicant_deauthenticate(wpa_s, |
| 100 | WLAN_REASON_DEAUTH_LEAVING); |
| 101 | return 1; |
| 102 | } |
| 103 | |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, |
| 109 | struct wpa_ssid *ssid, |
| 110 | const struct wps_credential *cred) |
| 111 | { |
| 112 | struct wpa_driver_capa capa; |
| 113 | struct wpa_bss *bss; |
| 114 | const u8 *ie; |
| 115 | struct wpa_ie_data adv; |
| 116 | int wpa2 = 0, ccmp = 0; |
| 117 | |
| 118 | /* |
| 119 | * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in |
| 120 | * case they are configured for mixed mode operation (WPA+WPA2 and |
| 121 | * TKIP+CCMP). Try to use scan results to figure out whether the AP |
| 122 | * actually supports stronger security and select that if the client |
| 123 | * has support for it, too. |
| 124 | */ |
| 125 | |
| 126 | if (wpa_drv_get_capa(wpa_s, &capa)) |
| 127 | return; /* Unknown what driver supports */ |
| 128 | |
| 129 | bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); |
| 130 | if (bss == NULL) { |
| 131 | wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " |
| 132 | "table - use credential as-is"); |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); |
| 137 | |
| 138 | ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
| 139 | if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { |
| 140 | wpa2 = 1; |
| 141 | if (adv.pairwise_cipher & WPA_CIPHER_CCMP) |
| 142 | ccmp = 1; |
| 143 | } else { |
| 144 | ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
| 145 | if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && |
| 146 | adv.pairwise_cipher & WPA_CIPHER_CCMP) |
| 147 | ccmp = 1; |
| 148 | } |
| 149 | |
| 150 | if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) && |
| 151 | (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) { |
| 152 | /* |
| 153 | * TODO: This could be the initial AP configuration and the |
| 154 | * Beacon contents could change shortly. Should request a new |
| 155 | * scan and delay addition of the network until the updated |
| 156 | * scan results are available. |
| 157 | */ |
| 158 | wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA " |
| 159 | "support - use credential as-is"); |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && |
| 164 | (ssid->pairwise_cipher & WPA_CIPHER_TKIP) && |
| 165 | (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { |
| 166 | wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential " |
| 167 | "based on scan results"); |
| 168 | if (wpa_s->conf->ap_scan == 1) |
| 169 | ssid->pairwise_cipher |= WPA_CIPHER_CCMP; |
| 170 | else |
| 171 | ssid->pairwise_cipher = WPA_CIPHER_CCMP; |
| 172 | } |
| 173 | |
| 174 | if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) && |
| 175 | (ssid->proto & WPA_PROTO_WPA) && |
| 176 | (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) { |
| 177 | wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential " |
| 178 | "based on scan results"); |
| 179 | if (wpa_s->conf->ap_scan == 1) |
| 180 | ssid->proto |= WPA_PROTO_RSN; |
| 181 | else |
| 182 | ssid->proto = WPA_PROTO_RSN; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | static int wpa_supplicant_wps_cred(void *ctx, |
| 188 | const struct wps_credential *cred) |
| 189 | { |
| 190 | struct wpa_supplicant *wpa_s = ctx; |
| 191 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 192 | u8 key_idx = 0; |
| 193 | u16 auth_type; |
| 194 | int registrar = 0; |
| 195 | |
| 196 | if ((wpa_s->conf->wps_cred_processing == 1 || |
| 197 | wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { |
| 198 | size_t blen = cred->cred_attr_len * 2 + 1; |
| 199 | char *buf = os_malloc(blen); |
| 200 | if (buf) { |
| 201 | wpa_snprintf_hex(buf, blen, |
| 202 | cred->cred_attr, cred->cred_attr_len); |
| 203 | wpa_msg(wpa_s, MSG_INFO, "%s%s", |
| 204 | WPS_EVENT_CRED_RECEIVED, buf); |
| 205 | os_free(buf); |
| 206 | } |
| 207 | |
| 208 | wpas_notify_wps_credential(wpa_s, cred); |
| 209 | } else |
| 210 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED); |
| 211 | |
| 212 | wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", |
| 213 | cred->cred_attr, cred->cred_attr_len); |
| 214 | |
| 215 | if (wpa_s->conf->wps_cred_processing == 1) |
| 216 | return 0; |
| 217 | |
| 218 | wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); |
| 219 | wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", |
| 220 | cred->auth_type); |
| 221 | wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); |
| 222 | wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); |
| 223 | wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", |
| 224 | cred->key, cred->key_len); |
| 225 | wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, |
| 226 | MAC2STR(cred->mac_addr)); |
| 227 | |
| 228 | auth_type = cred->auth_type; |
| 229 | if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { |
| 230 | wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode " |
| 231 | "auth_type into WPA2PSK"); |
| 232 | auth_type = WPS_AUTH_WPA2PSK; |
| 233 | } |
| 234 | |
| 235 | if (auth_type != WPS_AUTH_OPEN && |
| 236 | auth_type != WPS_AUTH_SHARED && |
| 237 | auth_type != WPS_AUTH_WPAPSK && |
| 238 | auth_type != WPS_AUTH_WPA2PSK) { |
| 239 | wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " |
| 240 | "unsupported authentication type 0x%x", |
| 241 | auth_type); |
| 242 | return 0; |
| 243 | } |
| 244 | |
| 245 | if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { |
| 246 | wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " |
| 247 | "on the received credential"); |
| 248 | if (ssid->eap.identity && |
| 249 | ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && |
| 250 | os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, |
| 251 | WSC_ID_REGISTRAR_LEN) == 0) |
| 252 | registrar = 1; |
| 253 | os_free(ssid->eap.identity); |
| 254 | ssid->eap.identity = NULL; |
| 255 | ssid->eap.identity_len = 0; |
| 256 | os_free(ssid->eap.phase1); |
| 257 | ssid->eap.phase1 = NULL; |
| 258 | os_free(ssid->eap.eap_methods); |
| 259 | ssid->eap.eap_methods = NULL; |
| 260 | if (!ssid->p2p_group) |
| 261 | ssid->temporary = 0; |
| 262 | } else { |
| 263 | wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " |
| 264 | "received credential"); |
| 265 | ssid = wpa_config_add_network(wpa_s->conf); |
| 266 | if (ssid == NULL) |
| 267 | return -1; |
| 268 | wpas_notify_network_added(wpa_s, ssid); |
| 269 | } |
| 270 | |
| 271 | wpa_config_set_network_defaults(ssid); |
| 272 | |
| 273 | os_free(ssid->ssid); |
| 274 | ssid->ssid = os_malloc(cred->ssid_len); |
| 275 | if (ssid->ssid) { |
| 276 | os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); |
| 277 | ssid->ssid_len = cred->ssid_len; |
| 278 | } |
| 279 | |
| 280 | switch (cred->encr_type) { |
| 281 | case WPS_ENCR_NONE: |
| 282 | break; |
| 283 | case WPS_ENCR_WEP: |
| 284 | if (cred->key_len <= 0) |
| 285 | break; |
| 286 | if (cred->key_len != 5 && cred->key_len != 13 && |
| 287 | cred->key_len != 10 && cred->key_len != 26) { |
| 288 | wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length " |
| 289 | "%lu", (unsigned long) cred->key_len); |
| 290 | return -1; |
| 291 | } |
| 292 | if (cred->key_idx > NUM_WEP_KEYS) { |
| 293 | wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d", |
| 294 | cred->key_idx); |
| 295 | return -1; |
| 296 | } |
| 297 | if (cred->key_idx) |
| 298 | key_idx = cred->key_idx - 1; |
| 299 | if (cred->key_len == 10 || cred->key_len == 26) { |
| 300 | if (hexstr2bin((char *) cred->key, |
| 301 | ssid->wep_key[key_idx], |
| 302 | cred->key_len / 2) < 0) { |
| 303 | wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key " |
| 304 | "%d", key_idx); |
| 305 | return -1; |
| 306 | } |
| 307 | ssid->wep_key_len[key_idx] = cred->key_len / 2; |
| 308 | } else { |
| 309 | os_memcpy(ssid->wep_key[key_idx], cred->key, |
| 310 | cred->key_len); |
| 311 | ssid->wep_key_len[key_idx] = cred->key_len; |
| 312 | } |
| 313 | ssid->wep_tx_keyidx = key_idx; |
| 314 | break; |
| 315 | case WPS_ENCR_TKIP: |
| 316 | ssid->pairwise_cipher = WPA_CIPHER_TKIP; |
| 317 | break; |
| 318 | case WPS_ENCR_AES: |
| 319 | ssid->pairwise_cipher = WPA_CIPHER_CCMP; |
| 320 | break; |
| 321 | } |
| 322 | |
| 323 | switch (auth_type) { |
| 324 | case WPS_AUTH_OPEN: |
| 325 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 326 | ssid->key_mgmt = WPA_KEY_MGMT_NONE; |
| 327 | ssid->proto = 0; |
| 328 | #ifdef CONFIG_WPS_REG_DISABLE_OPEN |
| 329 | if (registrar) { |
| 330 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK |
| 331 | "id=%d - Credentials for an open " |
| 332 | "network disabled by default - use " |
| 333 | "'select_network %d' to enable", |
| 334 | ssid->id, ssid->id); |
| 335 | ssid->disabled = 1; |
| 336 | } |
| 337 | #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ |
| 338 | break; |
| 339 | case WPS_AUTH_SHARED: |
| 340 | ssid->auth_alg = WPA_AUTH_ALG_SHARED; |
| 341 | ssid->key_mgmt = WPA_KEY_MGMT_NONE; |
| 342 | ssid->proto = 0; |
| 343 | break; |
| 344 | case WPS_AUTH_WPAPSK: |
| 345 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 346 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 347 | ssid->proto = WPA_PROTO_WPA; |
| 348 | break; |
| 349 | case WPS_AUTH_WPA: |
| 350 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 351 | ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; |
| 352 | ssid->proto = WPA_PROTO_WPA; |
| 353 | break; |
| 354 | case WPS_AUTH_WPA2: |
| 355 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 356 | ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; |
| 357 | ssid->proto = WPA_PROTO_RSN; |
| 358 | break; |
| 359 | case WPS_AUTH_WPA2PSK: |
| 360 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 361 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 362 | ssid->proto = WPA_PROTO_RSN; |
| 363 | break; |
| 364 | } |
| 365 | |
| 366 | if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) { |
| 367 | if (cred->key_len == 2 * PMK_LEN) { |
| 368 | if (hexstr2bin((const char *) cred->key, ssid->psk, |
| 369 | PMK_LEN)) { |
| 370 | wpa_printf(MSG_ERROR, "WPS: Invalid Network " |
| 371 | "Key"); |
| 372 | return -1; |
| 373 | } |
| 374 | ssid->psk_set = 1; |
| 375 | ssid->export_keys = 1; |
| 376 | } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { |
| 377 | os_free(ssid->passphrase); |
| 378 | ssid->passphrase = os_malloc(cred->key_len + 1); |
| 379 | if (ssid->passphrase == NULL) |
| 380 | return -1; |
| 381 | os_memcpy(ssid->passphrase, cred->key, cred->key_len); |
| 382 | ssid->passphrase[cred->key_len] = '\0'; |
| 383 | wpa_config_update_psk(ssid); |
| 384 | ssid->export_keys = 1; |
| 385 | } else { |
| 386 | wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " |
| 387 | "length %lu", |
| 388 | (unsigned long) cred->key_len); |
| 389 | return -1; |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | wpas_wps_security_workaround(wpa_s, ssid, cred); |
| 394 | |
| 395 | #ifndef CONFIG_NO_CONFIG_WRITE |
| 396 | if (wpa_s->conf->update_config && |
| 397 | wpa_config_write(wpa_s->confname, wpa_s->conf)) { |
| 398 | wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); |
| 399 | return -1; |
| 400 | } |
| 401 | #endif /* CONFIG_NO_CONFIG_WRITE */ |
| 402 | |
| 403 | return 0; |
| 404 | } |
| 405 | |
| 406 | |
| 407 | #ifdef CONFIG_P2P |
| 408 | static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx) |
| 409 | { |
| 410 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 411 | wpas_p2p_notif_pbc_overlap(wpa_s); |
| 412 | } |
| 413 | #endif /* CONFIG_P2P */ |
| 414 | |
| 415 | |
| 416 | static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, |
| 417 | struct wps_event_m2d *m2d) |
| 418 | { |
| 419 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D |
| 420 | "dev_password_id=%d config_error=%d", |
| 421 | m2d->dev_password_id, m2d->config_error); |
| 422 | wpas_notify_wps_event_m2d(wpa_s, m2d); |
| 423 | #ifdef CONFIG_P2P |
| 424 | if (wpa_s->parent && wpa_s->parent != wpa_s) { |
| 425 | wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D |
| 426 | "dev_password_id=%d config_error=%d", |
| 427 | m2d->dev_password_id, m2d->config_error); |
| 428 | } |
| 429 | if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { |
| 430 | /* |
| 431 | * Notify P2P from eloop timeout to avoid issues with the |
| 432 | * interface getting removed while processing a message. |
| 433 | */ |
| 434 | eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s, |
| 435 | NULL); |
| 436 | } |
| 437 | #endif /* CONFIG_P2P */ |
| 438 | } |
| 439 | |
| 440 | |
| 441 | static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = { |
| 442 | "No Error", /* WPS_EI_NO_ERROR */ |
| 443 | "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */ |
| 444 | "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */ |
| 445 | }; |
| 446 | |
| 447 | static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, |
| 448 | struct wps_event_fail *fail) |
| 449 | { |
| 450 | if (fail->error_indication > 0 && |
| 451 | fail->error_indication < NUM_WPS_EI_VALUES) { |
| 452 | wpa_msg(wpa_s, MSG_INFO, |
| 453 | WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", |
| 454 | fail->msg, fail->config_error, fail->error_indication, |
| 455 | wps_event_fail_reason[fail->error_indication]); |
| 456 | if (wpa_s->parent && wpa_s->parent != wpa_s) |
| 457 | wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL |
| 458 | "msg=%d config_error=%d reason=%d (%s)", |
| 459 | fail->msg, fail->config_error, |
| 460 | fail->error_indication, |
| 461 | wps_event_fail_reason[fail->error_indication]); |
| 462 | } else { |
| 463 | wpa_msg(wpa_s, MSG_INFO, |
| 464 | WPS_EVENT_FAIL "msg=%d config_error=%d", |
| 465 | fail->msg, fail->config_error); |
| 466 | if (wpa_s->parent && wpa_s->parent != wpa_s) |
| 467 | wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL |
| 468 | "msg=%d config_error=%d", |
| 469 | fail->msg, fail->config_error); |
| 470 | } |
| 471 | wpas_clear_wps(wpa_s); |
| 472 | wpas_notify_wps_event_fail(wpa_s, fail); |
| 473 | } |
| 474 | |
| 475 | |
| 476 | static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) |
| 477 | { |
| 478 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); |
| 479 | wpa_s->wps_success = 1; |
| 480 | wpas_notify_wps_event_success(wpa_s); |
| 481 | #ifdef CONFIG_P2P |
| 482 | wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); |
| 483 | #endif /* CONFIG_P2P */ |
| 484 | } |
| 485 | |
| 486 | |
| 487 | static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, |
| 488 | struct wps_event_er_ap *ap) |
| 489 | { |
| 490 | char uuid_str[100]; |
| 491 | char dev_type[WPS_DEV_TYPE_BUFSIZE]; |
| 492 | |
| 493 | uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); |
| 494 | if (ap->pri_dev_type) |
| 495 | wps_dev_type_bin2str(ap->pri_dev_type, dev_type, |
| 496 | sizeof(dev_type)); |
| 497 | else |
| 498 | dev_type[0] = '\0'; |
| 499 | |
| 500 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR |
| 501 | " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|", |
| 502 | uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state, |
| 503 | ap->friendly_name ? ap->friendly_name : "", |
| 504 | ap->manufacturer ? ap->manufacturer : "", |
| 505 | ap->model_description ? ap->model_description : "", |
| 506 | ap->model_name ? ap->model_name : "", |
| 507 | ap->manufacturer_url ? ap->manufacturer_url : "", |
| 508 | ap->model_url ? ap->model_url : ""); |
| 509 | } |
| 510 | |
| 511 | |
| 512 | static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s, |
| 513 | struct wps_event_er_ap *ap) |
| 514 | { |
| 515 | char uuid_str[100]; |
| 516 | uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); |
| 517 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str); |
| 518 | } |
| 519 | |
| 520 | |
| 521 | static void wpa_supplicant_wps_event_er_enrollee_add( |
| 522 | struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) |
| 523 | { |
| 524 | char uuid_str[100]; |
| 525 | char dev_type[WPS_DEV_TYPE_BUFSIZE]; |
| 526 | |
| 527 | uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); |
| 528 | if (enrollee->pri_dev_type) |
| 529 | wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, |
| 530 | sizeof(dev_type)); |
| 531 | else |
| 532 | dev_type[0] = '\0'; |
| 533 | |
| 534 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR |
| 535 | " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s " |
| 536 | "|%s|%s|%s|%s|%s|", |
| 537 | uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received, |
| 538 | enrollee->config_methods, enrollee->dev_passwd_id, dev_type, |
| 539 | enrollee->dev_name ? enrollee->dev_name : "", |
| 540 | enrollee->manufacturer ? enrollee->manufacturer : "", |
| 541 | enrollee->model_name ? enrollee->model_name : "", |
| 542 | enrollee->model_number ? enrollee->model_number : "", |
| 543 | enrollee->serial_number ? enrollee->serial_number : ""); |
| 544 | } |
| 545 | |
| 546 | |
| 547 | static void wpa_supplicant_wps_event_er_enrollee_remove( |
| 548 | struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) |
| 549 | { |
| 550 | char uuid_str[100]; |
| 551 | uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); |
| 552 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR, |
| 553 | uuid_str, MAC2STR(enrollee->mac_addr)); |
| 554 | } |
| 555 | |
| 556 | |
| 557 | static void wpa_supplicant_wps_event_er_ap_settings( |
| 558 | struct wpa_supplicant *wpa_s, |
| 559 | struct wps_event_er_ap_settings *ap_settings) |
| 560 | { |
| 561 | char uuid_str[100]; |
| 562 | char key_str[65]; |
| 563 | const struct wps_credential *cred = ap_settings->cred; |
| 564 | |
| 565 | key_str[0] = '\0'; |
| 566 | if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { |
| 567 | if (cred->key_len >= 8 && cred->key_len <= 64) { |
| 568 | os_memcpy(key_str, cred->key, cred->key_len); |
| 569 | key_str[cred->key_len] = '\0'; |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); |
| 574 | /* Use wpa_msg_ctrl to avoid showing the key in debug log */ |
| 575 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS |
| 576 | "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " |
| 577 | "key=%s", |
| 578 | uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), |
| 579 | cred->auth_type, cred->encr_type, key_str); |
| 580 | } |
| 581 | |
| 582 | |
| 583 | static void wpa_supplicant_wps_event_er_set_sel_reg( |
| 584 | struct wpa_supplicant *wpa_s, |
| 585 | struct wps_event_er_set_selected_registrar *ev) |
| 586 | { |
| 587 | char uuid_str[100]; |
| 588 | |
| 589 | uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); |
| 590 | switch (ev->state) { |
| 591 | case WPS_ER_SET_SEL_REG_START: |
| 592 | wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG |
| 593 | "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " |
| 594 | "sel_reg_config_methods=0x%x", |
| 595 | uuid_str, ev->sel_reg, ev->dev_passwd_id, |
| 596 | ev->sel_reg_config_methods); |
| 597 | break; |
| 598 | case WPS_ER_SET_SEL_REG_DONE: |
| 599 | wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG |
| 600 | "uuid=%s state=DONE", uuid_str); |
| 601 | break; |
| 602 | case WPS_ER_SET_SEL_REG_FAILED: |
| 603 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG |
| 604 | "uuid=%s state=FAILED", uuid_str); |
| 605 | break; |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | |
| 610 | static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, |
| 611 | union wps_event_data *data) |
| 612 | { |
| 613 | struct wpa_supplicant *wpa_s = ctx; |
| 614 | switch (event) { |
| 615 | case WPS_EV_M2D: |
| 616 | wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d); |
| 617 | break; |
| 618 | case WPS_EV_FAIL: |
| 619 | wpa_supplicant_wps_event_fail(wpa_s, &data->fail); |
| 620 | break; |
| 621 | case WPS_EV_SUCCESS: |
| 622 | wpa_supplicant_wps_event_success(wpa_s); |
| 623 | break; |
| 624 | case WPS_EV_PWD_AUTH_FAIL: |
| 625 | #ifdef CONFIG_AP |
| 626 | if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) |
| 627 | wpa_supplicant_ap_pwd_auth_fail(wpa_s); |
| 628 | #endif /* CONFIG_AP */ |
| 629 | break; |
| 630 | case WPS_EV_PBC_OVERLAP: |
| 631 | break; |
| 632 | case WPS_EV_PBC_TIMEOUT: |
| 633 | break; |
| 634 | case WPS_EV_ER_AP_ADD: |
| 635 | wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); |
| 636 | break; |
| 637 | case WPS_EV_ER_AP_REMOVE: |
| 638 | wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap); |
| 639 | break; |
| 640 | case WPS_EV_ER_ENROLLEE_ADD: |
| 641 | wpa_supplicant_wps_event_er_enrollee_add(wpa_s, |
| 642 | &data->enrollee); |
| 643 | break; |
| 644 | case WPS_EV_ER_ENROLLEE_REMOVE: |
| 645 | wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, |
| 646 | &data->enrollee); |
| 647 | break; |
| 648 | case WPS_EV_ER_AP_SETTINGS: |
| 649 | wpa_supplicant_wps_event_er_ap_settings(wpa_s, |
| 650 | &data->ap_settings); |
| 651 | break; |
| 652 | case WPS_EV_ER_SET_SELECTED_REGISTRAR: |
| 653 | wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, |
| 654 | &data->set_sel_reg); |
| 655 | break; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | |
| 660 | enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) |
| 661 | { |
| 662 | if (eap_is_wps_pbc_enrollee(&ssid->eap) || |
| 663 | eap_is_wps_pin_enrollee(&ssid->eap)) |
| 664 | return WPS_REQ_ENROLLEE; |
| 665 | else |
| 666 | return WPS_REQ_REGISTRAR; |
| 667 | } |
| 668 | |
| 669 | |
| 670 | static void wpas_clear_wps(struct wpa_supplicant *wpa_s) |
| 671 | { |
| 672 | int id; |
| 673 | struct wpa_ssid *ssid, *remove_ssid = NULL; |
| 674 | |
| 675 | eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); |
| 676 | |
| 677 | /* Remove any existing WPS network from configuration */ |
| 678 | ssid = wpa_s->conf->ssid; |
| 679 | while (ssid) { |
| 680 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { |
| 681 | if (ssid == wpa_s->current_ssid) { |
| 682 | wpa_s->current_ssid = NULL; |
| 683 | if (ssid != NULL) |
| 684 | wpas_notify_network_changed(wpa_s); |
| 685 | } |
| 686 | id = ssid->id; |
| 687 | remove_ssid = ssid; |
| 688 | } else |
| 689 | id = -1; |
| 690 | ssid = ssid->next; |
| 691 | if (id >= 0) { |
| 692 | wpas_notify_network_removed(wpa_s, remove_ssid); |
| 693 | wpa_config_remove_network(wpa_s->conf, id); |
| 694 | } |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | |
| 699 | static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) |
| 700 | { |
| 701 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 702 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " |
| 703 | "out"); |
| 704 | wpas_clear_wps(wpa_s); |
| 705 | } |
| 706 | |
| 707 | |
| 708 | static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, |
| 709 | int registrar, const u8 *bssid) |
| 710 | { |
| 711 | struct wpa_ssid *ssid; |
| 712 | |
| 713 | ssid = wpa_config_add_network(wpa_s->conf); |
| 714 | if (ssid == NULL) |
| 715 | return NULL; |
| 716 | wpas_notify_network_added(wpa_s, ssid); |
| 717 | wpa_config_set_network_defaults(ssid); |
| 718 | ssid->temporary = 1; |
| 719 | if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || |
| 720 | wpa_config_set(ssid, "eap", "WSC", 0) < 0 || |
| 721 | wpa_config_set(ssid, "identity", registrar ? |
| 722 | "\"" WSC_ID_REGISTRAR "\"" : |
| 723 | "\"" WSC_ID_ENROLLEE "\"", 0) < 0) { |
| 724 | wpas_notify_network_removed(wpa_s, ssid); |
| 725 | wpa_config_remove_network(wpa_s->conf, ssid->id); |
| 726 | return NULL; |
| 727 | } |
| 728 | |
| 729 | if (bssid) { |
| 730 | #ifndef CONFIG_P2P |
| 731 | struct wpa_bss *bss; |
| 732 | int count = 0; |
| 733 | #endif /* CONFIG_P2P */ |
| 734 | |
| 735 | os_memcpy(ssid->bssid, bssid, ETH_ALEN); |
| 736 | ssid->bssid_set = 1; |
| 737 | |
| 738 | /* |
| 739 | * Note: With P2P, the SSID may change at the time the WPS |
| 740 | * provisioning is started, so better not filter the AP based |
| 741 | * on the current SSID in the scan results. |
| 742 | */ |
| 743 | #ifndef CONFIG_P2P |
| 744 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| 745 | if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) |
| 746 | continue; |
| 747 | |
| 748 | os_free(ssid->ssid); |
| 749 | ssid->ssid = os_malloc(bss->ssid_len); |
| 750 | if (ssid->ssid == NULL) |
| 751 | break; |
| 752 | os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); |
| 753 | ssid->ssid_len = bss->ssid_len; |
| 754 | wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " |
| 755 | "scan results", |
| 756 | ssid->ssid, ssid->ssid_len); |
| 757 | count++; |
| 758 | } |
| 759 | |
| 760 | if (count > 1) { |
| 761 | wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " |
| 762 | "for the AP; use wildcard"); |
| 763 | os_free(ssid->ssid); |
| 764 | ssid->ssid = NULL; |
| 765 | ssid->ssid_len = 0; |
| 766 | } |
| 767 | #endif /* CONFIG_P2P */ |
| 768 | } |
| 769 | |
| 770 | return ssid; |
| 771 | } |
| 772 | |
| 773 | |
| 774 | static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, |
| 775 | struct wpa_ssid *selected) |
| 776 | { |
| 777 | struct wpa_ssid *ssid; |
| 778 | |
| 779 | /* Mark all other networks disabled and trigger reassociation */ |
| 780 | ssid = wpa_s->conf->ssid; |
| 781 | while (ssid) { |
| 782 | int was_disabled = ssid->disabled; |
| 783 | ssid->disabled = ssid != selected; |
| 784 | if (was_disabled != ssid->disabled) |
| 785 | wpas_notify_network_enabled_changed(wpa_s, ssid); |
| 786 | ssid = ssid->next; |
| 787 | } |
| 788 | wpa_s->disconnected = 0; |
| 789 | wpa_s->reassociate = 1; |
| 790 | wpa_s->scan_runs = 0; |
| 791 | wpa_s->wps_success = 0; |
| 792 | wpa_s->blacklist_cleared = 0; |
| 793 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 794 | } |
| 795 | |
| 796 | |
| 797 | int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, |
| 798 | int p2p_group) |
| 799 | { |
| 800 | struct wpa_ssid *ssid; |
| 801 | wpas_clear_wps(wpa_s); |
| 802 | ssid = wpas_wps_add_network(wpa_s, 0, bssid); |
| 803 | if (ssid == NULL) |
| 804 | return -1; |
| 805 | ssid->temporary = 1; |
| 806 | ssid->p2p_group = p2p_group; |
| 807 | #ifdef CONFIG_P2P |
| 808 | if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { |
| 809 | ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); |
| 810 | if (ssid->ssid) { |
| 811 | ssid->ssid_len = wpa_s->go_params->ssid_len; |
| 812 | os_memcpy(ssid->ssid, wpa_s->go_params->ssid, |
| 813 | ssid->ssid_len); |
| 814 | wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " |
| 815 | "SSID", ssid->ssid, ssid->ssid_len); |
| 816 | } |
| 817 | } |
| 818 | #endif /* CONFIG_P2P */ |
| 819 | wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0); |
| 820 | if (wpa_s->wps_fragment_size) |
| 821 | ssid->eap.fragment_size = wpa_s->wps_fragment_size; |
| 822 | eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, |
| 823 | wpa_s, NULL); |
| 824 | wpas_wps_reassoc(wpa_s, ssid); |
| 825 | return 0; |
| 826 | } |
| 827 | |
| 828 | |
| 829 | int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, |
| 830 | const char *pin, int p2p_group, u16 dev_pw_id) |
| 831 | { |
| 832 | struct wpa_ssid *ssid; |
| 833 | char val[128]; |
| 834 | unsigned int rpin = 0; |
| 835 | |
| 836 | wpas_clear_wps(wpa_s); |
| 837 | ssid = wpas_wps_add_network(wpa_s, 0, bssid); |
| 838 | if (ssid == NULL) |
| 839 | return -1; |
| 840 | ssid->temporary = 1; |
| 841 | ssid->p2p_group = p2p_group; |
| 842 | #ifdef CONFIG_P2P |
| 843 | if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { |
| 844 | ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); |
| 845 | if (ssid->ssid) { |
| 846 | ssid->ssid_len = wpa_s->go_params->ssid_len; |
| 847 | os_memcpy(ssid->ssid, wpa_s->go_params->ssid, |
| 848 | ssid->ssid_len); |
| 849 | wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " |
| 850 | "SSID", ssid->ssid, ssid->ssid_len); |
| 851 | } |
| 852 | } |
| 853 | #endif /* CONFIG_P2P */ |
| 854 | if (pin) |
| 855 | os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"", |
| 856 | pin, dev_pw_id); |
| 857 | else { |
| 858 | rpin = wps_generate_pin(); |
| 859 | os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"", |
| 860 | rpin, dev_pw_id); |
| 861 | } |
| 862 | wpa_config_set(ssid, "phase1", val, 0); |
| 863 | if (wpa_s->wps_fragment_size) |
| 864 | ssid->eap.fragment_size = wpa_s->wps_fragment_size; |
| 865 | eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, |
| 866 | wpa_s, NULL); |
| 867 | wpas_wps_reassoc(wpa_s, ssid); |
| 868 | return rpin; |
| 869 | } |
| 870 | |
| 871 | |
| 872 | /* Cancel the wps pbc/pin requests */ |
| 873 | int wpas_wps_cancel(struct wpa_supplicant *wpa_s) |
| 874 | { |
| 875 | #ifdef CONFIG_AP |
| 876 | if (wpa_s->ap_iface) { |
| 877 | wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); |
| 878 | return wpa_supplicant_ap_wps_cancel(wpa_s); |
| 879 | } |
| 880 | #endif /* CONFIG_AP */ |
| 881 | |
| 882 | if (wpa_s->wpa_state == WPA_SCANNING) { |
| 883 | wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); |
| 884 | wpa_supplicant_cancel_scan(wpa_s); |
| 885 | wpas_clear_wps(wpa_s); |
| 886 | } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { |
| 887 | wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " |
| 888 | "deauthenticate"); |
| 889 | wpa_supplicant_deauthenticate(wpa_s, |
| 890 | WLAN_REASON_DEAUTH_LEAVING); |
| 891 | wpas_clear_wps(wpa_s); |
| 892 | } |
| 893 | |
| 894 | return 0; |
| 895 | } |
| 896 | |
| 897 | |
| 898 | #ifdef CONFIG_WPS_OOB |
| 899 | int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type, |
| 900 | char *path, char *method, char *name) |
| 901 | { |
| 902 | struct wps_context *wps = wpa_s->wps; |
| 903 | struct oob_device_data *oob_dev; |
| 904 | |
| 905 | oob_dev = wps_get_oob_device(device_type); |
| 906 | if (oob_dev == NULL) |
| 907 | return -1; |
| 908 | oob_dev->device_path = path; |
| 909 | oob_dev->device_name = name; |
| 910 | wps->oob_conf.oob_method = wps_get_oob_method(method); |
| 911 | |
| 912 | if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) { |
| 913 | /* |
| 914 | * Use pre-configured DH keys in order to be able to write the |
| 915 | * key hash into the OOB file. |
| 916 | */ |
| 917 | wpabuf_free(wps->dh_pubkey); |
| 918 | wpabuf_free(wps->dh_privkey); |
| 919 | wps->dh_privkey = NULL; |
| 920 | wps->dh_pubkey = NULL; |
| 921 | dh5_free(wps->dh_ctx); |
| 922 | wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey); |
| 923 | wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192); |
| 924 | if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) { |
| 925 | wpa_printf(MSG_ERROR, "WPS: Failed to initialize " |
| 926 | "Diffie-Hellman handshake"); |
| 927 | return -1; |
| 928 | } |
| 929 | } |
| 930 | |
| 931 | if (wps->oob_conf.oob_method == OOB_METHOD_CRED) |
| 932 | wpas_clear_wps(wpa_s); |
| 933 | |
| 934 | if (wps_process_oob(wps, oob_dev, 0) < 0) |
| 935 | return -1; |
| 936 | |
| 937 | if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E || |
| 938 | wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) && |
| 939 | wpas_wps_start_pin(wpa_s, NULL, |
| 940 | wpabuf_head(wps->oob_conf.dev_password), 0, |
| 941 | DEV_PW_DEFAULT) < 0) |
| 942 | return -1; |
| 943 | |
| 944 | return 0; |
| 945 | } |
| 946 | #endif /* CONFIG_WPS_OOB */ |
| 947 | |
| 948 | |
| 949 | int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, |
| 950 | const char *pin, struct wps_new_ap_settings *settings) |
| 951 | { |
| 952 | struct wpa_ssid *ssid; |
| 953 | char val[200]; |
| 954 | char *pos, *end; |
| 955 | int res; |
| 956 | |
| 957 | if (!pin) |
| 958 | return -1; |
| 959 | wpas_clear_wps(wpa_s); |
| 960 | ssid = wpas_wps_add_network(wpa_s, 1, bssid); |
| 961 | if (ssid == NULL) |
| 962 | return -1; |
| 963 | ssid->temporary = 1; |
| 964 | pos = val; |
| 965 | end = pos + sizeof(val); |
| 966 | res = os_snprintf(pos, end - pos, "\"pin=%s", pin); |
| 967 | if (res < 0 || res >= end - pos) |
| 968 | return -1; |
| 969 | pos += res; |
| 970 | if (settings) { |
| 971 | res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " |
| 972 | "new_encr=%s new_key=%s", |
| 973 | settings->ssid_hex, settings->auth, |
| 974 | settings->encr, settings->key_hex); |
| 975 | if (res < 0 || res >= end - pos) |
| 976 | return -1; |
| 977 | pos += res; |
| 978 | } |
| 979 | res = os_snprintf(pos, end - pos, "\""); |
| 980 | if (res < 0 || res >= end - pos) |
| 981 | return -1; |
| 982 | wpa_config_set(ssid, "phase1", val, 0); |
| 983 | if (wpa_s->wps_fragment_size) |
| 984 | ssid->eap.fragment_size = wpa_s->wps_fragment_size; |
| 985 | eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, |
| 986 | wpa_s, NULL); |
| 987 | wpas_wps_reassoc(wpa_s, ssid); |
| 988 | return 0; |
| 989 | } |
| 990 | |
| 991 | |
| 992 | static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk, |
| 993 | size_t psk_len) |
| 994 | { |
| 995 | wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for " |
| 996 | "STA " MACSTR, MAC2STR(mac_addr)); |
| 997 | wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); |
| 998 | |
| 999 | /* TODO */ |
| 1000 | |
| 1001 | return 0; |
| 1002 | } |
| 1003 | |
| 1004 | |
| 1005 | static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, |
| 1006 | const struct wps_device_data *dev) |
| 1007 | { |
| 1008 | char uuid[40], txt[400]; |
| 1009 | int len; |
| 1010 | char devtype[WPS_DEV_TYPE_BUFSIZE]; |
| 1011 | if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) |
| 1012 | return; |
| 1013 | wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); |
| 1014 | len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR |
| 1015 | " [%s|%s|%s|%s|%s|%s]", |
| 1016 | uuid, MAC2STR(dev->mac_addr), dev->device_name, |
| 1017 | dev->manufacturer, dev->model_name, |
| 1018 | dev->model_number, dev->serial_number, |
| 1019 | wps_dev_type_bin2str(dev->pri_dev_type, devtype, |
| 1020 | sizeof(devtype))); |
| 1021 | if (len > 0 && len < (int) sizeof(txt)) |
| 1022 | wpa_printf(MSG_INFO, "%s", txt); |
| 1023 | } |
| 1024 | |
| 1025 | |
| 1026 | static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, |
| 1027 | u16 sel_reg_config_methods) |
| 1028 | { |
| 1029 | #ifdef CONFIG_WPS_ER |
| 1030 | struct wpa_supplicant *wpa_s = ctx; |
| 1031 | |
| 1032 | if (wpa_s->wps_er == NULL) |
| 1033 | return; |
| 1034 | wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " |
| 1035 | "dev_password_id=%u sel_reg_config_methods=0x%x", |
| 1036 | sel_reg, dev_passwd_id, sel_reg_config_methods); |
| 1037 | wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, |
| 1038 | sel_reg_config_methods); |
| 1039 | #endif /* CONFIG_WPS_ER */ |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | static u16 wps_fix_config_methods(u16 config_methods) |
| 1044 | { |
| 1045 | #ifdef CONFIG_WPS2 |
| 1046 | if ((config_methods & |
| 1047 | (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | |
| 1048 | WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { |
| 1049 | wpa_printf(MSG_INFO, "WPS: Converting display to " |
| 1050 | "virtual_display for WPS 2.0 compliance"); |
| 1051 | config_methods |= WPS_CONFIG_VIRT_DISPLAY; |
| 1052 | } |
| 1053 | if ((config_methods & |
| 1054 | (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | |
| 1055 | WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { |
| 1056 | wpa_printf(MSG_INFO, "WPS: Converting push_button to " |
| 1057 | "virtual_push_button for WPS 2.0 compliance"); |
| 1058 | config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; |
| 1059 | } |
| 1060 | #endif /* CONFIG_WPS2 */ |
| 1061 | |
| 1062 | return config_methods; |
| 1063 | } |
| 1064 | |
| 1065 | |
| 1066 | static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, |
| 1067 | struct wps_context *wps) |
| 1068 | { |
| 1069 | wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname); |
| 1070 | if (is_nil_uuid(wpa_s->conf->uuid)) { |
| 1071 | struct wpa_supplicant *first; |
| 1072 | first = wpa_s->global->ifaces; |
| 1073 | while (first && first->next) |
| 1074 | first = first->next; |
| 1075 | if (first && first != wpa_s) { |
| 1076 | os_memcpy(wps->uuid, wpa_s->global->ifaces->wps->uuid, |
| 1077 | WPS_UUID_LEN); |
| 1078 | wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first " |
| 1079 | "interface", wps->uuid, WPS_UUID_LEN); |
| 1080 | } else { |
| 1081 | uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); |
| 1082 | wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " |
| 1083 | "address", wps->uuid, WPS_UUID_LEN); |
| 1084 | } |
| 1085 | } else { |
| 1086 | os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); |
| 1087 | wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration", |
| 1088 | wps->uuid, WPS_UUID_LEN); |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | int wpas_wps_init(struct wpa_supplicant *wpa_s) |
| 1094 | { |
| 1095 | struct wps_context *wps; |
| 1096 | struct wps_registrar_config rcfg; |
| 1097 | |
| 1098 | wps = os_zalloc(sizeof(*wps)); |
| 1099 | if (wps == NULL) |
| 1100 | return -1; |
| 1101 | |
| 1102 | wps->cred_cb = wpa_supplicant_wps_cred; |
| 1103 | wps->event_cb = wpa_supplicant_wps_event; |
| 1104 | wps->cb_ctx = wpa_s; |
| 1105 | |
| 1106 | wps->dev.device_name = wpa_s->conf->device_name; |
| 1107 | wps->dev.manufacturer = wpa_s->conf->manufacturer; |
| 1108 | wps->dev.model_name = wpa_s->conf->model_name; |
| 1109 | wps->dev.model_number = wpa_s->conf->model_number; |
| 1110 | wps->dev.serial_number = wpa_s->conf->serial_number; |
| 1111 | wps->config_methods = |
| 1112 | wps_config_methods_str2bin(wpa_s->conf->config_methods); |
| 1113 | if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == |
| 1114 | (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { |
| 1115 | wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " |
| 1116 | "methods are not allowed at the same time"); |
| 1117 | os_free(wps); |
| 1118 | return -1; |
| 1119 | } |
| 1120 | wps->config_methods = wps_fix_config_methods(wps->config_methods); |
| 1121 | os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, |
| 1122 | WPS_DEV_TYPE_LEN); |
| 1123 | |
| 1124 | wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; |
| 1125 | os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, |
| 1126 | WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); |
| 1127 | |
| 1128 | wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); |
| 1129 | wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */ |
| 1130 | os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); |
| 1131 | wpas_wps_set_uuid(wpa_s, wps); |
| 1132 | |
| 1133 | wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; |
| 1134 | wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; |
| 1135 | |
| 1136 | os_memset(&rcfg, 0, sizeof(rcfg)); |
| 1137 | rcfg.new_psk_cb = wpas_wps_new_psk_cb; |
| 1138 | rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; |
| 1139 | rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; |
| 1140 | rcfg.cb_ctx = wpa_s; |
| 1141 | |
| 1142 | wps->registrar = wps_registrar_init(wps, &rcfg); |
| 1143 | if (wps->registrar == NULL) { |
| 1144 | wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); |
| 1145 | os_free(wps); |
| 1146 | return -1; |
| 1147 | } |
| 1148 | |
| 1149 | wpa_s->wps = wps; |
| 1150 | |
| 1151 | return 0; |
| 1152 | } |
| 1153 | |
| 1154 | |
| 1155 | void wpas_wps_deinit(struct wpa_supplicant *wpa_s) |
| 1156 | { |
| 1157 | eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); |
| 1158 | |
| 1159 | if (wpa_s->wps == NULL) |
| 1160 | return; |
| 1161 | |
| 1162 | #ifdef CONFIG_WPS_ER |
| 1163 | wps_er_deinit(wpa_s->wps_er, NULL, NULL); |
| 1164 | wpa_s->wps_er = NULL; |
| 1165 | #endif /* CONFIG_WPS_ER */ |
| 1166 | |
| 1167 | wps_registrar_deinit(wpa_s->wps->registrar); |
| 1168 | wpabuf_free(wpa_s->wps->dh_pubkey); |
| 1169 | wpabuf_free(wpa_s->wps->dh_privkey); |
| 1170 | wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash); |
| 1171 | wpabuf_free(wpa_s->wps->oob_conf.dev_password); |
| 1172 | os_free(wpa_s->wps->network_key); |
| 1173 | os_free(wpa_s->wps); |
| 1174 | wpa_s->wps = NULL; |
| 1175 | } |
| 1176 | |
| 1177 | |
| 1178 | int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, |
| 1179 | struct wpa_ssid *ssid, struct wpa_scan_res *bss) |
| 1180 | { |
| 1181 | struct wpabuf *wps_ie; |
| 1182 | |
| 1183 | if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) |
| 1184 | return -1; |
| 1185 | |
| 1186 | wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); |
| 1187 | if (eap_is_wps_pbc_enrollee(&ssid->eap)) { |
| 1188 | if (!wps_ie) { |
| 1189 | wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); |
| 1190 | return 0; |
| 1191 | } |
| 1192 | |
| 1193 | if (!wps_is_selected_pbc_registrar(wps_ie)) { |
| 1194 | wpa_printf(MSG_DEBUG, " skip - WPS AP " |
| 1195 | "without active PBC Registrar"); |
| 1196 | wpabuf_free(wps_ie); |
| 1197 | return 0; |
| 1198 | } |
| 1199 | |
| 1200 | /* TODO: overlap detection */ |
| 1201 | wpa_printf(MSG_DEBUG, " selected based on WPS IE " |
| 1202 | "(Active PBC)"); |
| 1203 | wpabuf_free(wps_ie); |
| 1204 | return 1; |
| 1205 | } |
| 1206 | |
| 1207 | if (eap_is_wps_pin_enrollee(&ssid->eap)) { |
| 1208 | if (!wps_ie) { |
| 1209 | wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | /* |
| 1214 | * Start with WPS APs that advertise our address as an |
| 1215 | * authorized MAC (v2.0) or active PIN Registrar (v1.0) and |
| 1216 | * allow any WPS AP after couple of scans since some APs do not |
| 1217 | * set Selected Registrar attribute properly when using |
| 1218 | * external Registrar. |
| 1219 | */ |
| 1220 | if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { |
| 1221 | if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) { |
| 1222 | wpa_printf(MSG_DEBUG, " skip - WPS AP " |
| 1223 | "without active PIN Registrar"); |
| 1224 | wpabuf_free(wps_ie); |
| 1225 | return 0; |
| 1226 | } |
| 1227 | wpa_printf(MSG_DEBUG, " selected based on WPS IE"); |
| 1228 | } else { |
| 1229 | wpa_printf(MSG_DEBUG, " selected based on WPS IE " |
| 1230 | "(Authorized MAC or Active PIN)"); |
| 1231 | } |
| 1232 | wpabuf_free(wps_ie); |
| 1233 | return 1; |
| 1234 | } |
| 1235 | |
| 1236 | if (wps_ie) { |
| 1237 | wpa_printf(MSG_DEBUG, " selected based on WPS IE"); |
| 1238 | wpabuf_free(wps_ie); |
| 1239 | return 1; |
| 1240 | } |
| 1241 | |
| 1242 | return -1; |
| 1243 | } |
| 1244 | |
| 1245 | |
| 1246 | int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, |
| 1247 | struct wpa_ssid *ssid, |
| 1248 | struct wpa_scan_res *bss) |
| 1249 | { |
| 1250 | struct wpabuf *wps_ie = NULL; |
| 1251 | int ret = 0; |
| 1252 | |
| 1253 | if (eap_is_wps_pbc_enrollee(&ssid->eap)) { |
| 1254 | wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); |
| 1255 | if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { |
| 1256 | /* allow wildcard SSID for WPS PBC */ |
| 1257 | ret = 1; |
| 1258 | } |
| 1259 | } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { |
| 1260 | wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); |
| 1261 | if (wps_ie && |
| 1262 | (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || |
| 1263 | wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { |
| 1264 | /* allow wildcard SSID for WPS PIN */ |
| 1265 | ret = 1; |
| 1266 | } |
| 1267 | } |
| 1268 | |
| 1269 | if (!ret && ssid->bssid_set && |
| 1270 | os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { |
| 1271 | /* allow wildcard SSID due to hardcoded BSSID match */ |
| 1272 | ret = 1; |
| 1273 | } |
| 1274 | |
| 1275 | #ifdef CONFIG_WPS_STRICT |
| 1276 | if (wps_ie) { |
| 1277 | if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > |
| 1278 | 0, bss->bssid) < 0) |
| 1279 | ret = 0; |
| 1280 | if (bss->beacon_ie_len) { |
| 1281 | struct wpabuf *bcn_wps; |
| 1282 | bcn_wps = wpa_scan_get_vendor_ie_multi_beacon( |
| 1283 | bss, WPS_IE_VENDOR_TYPE); |
| 1284 | if (bcn_wps == NULL) { |
| 1285 | wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " |
| 1286 | "missing from AP Beacon"); |
| 1287 | ret = 0; |
| 1288 | } else { |
| 1289 | if (wps_validate_beacon(wps_ie) < 0) |
| 1290 | ret = 0; |
| 1291 | wpabuf_free(bcn_wps); |
| 1292 | } |
| 1293 | } |
| 1294 | } |
| 1295 | #endif /* CONFIG_WPS_STRICT */ |
| 1296 | |
| 1297 | wpabuf_free(wps_ie); |
| 1298 | |
| 1299 | return ret; |
| 1300 | } |
| 1301 | |
| 1302 | |
| 1303 | int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, |
| 1304 | struct wpa_bss *selected, struct wpa_ssid *ssid) |
| 1305 | { |
| 1306 | const u8 *sel_uuid, *uuid; |
| 1307 | struct wpabuf *wps_ie; |
| 1308 | int ret = 0; |
| 1309 | struct wpa_bss *bss; |
| 1310 | |
| 1311 | if (!eap_is_wps_pbc_enrollee(&ssid->eap)) |
| 1312 | return 0; |
| 1313 | |
| 1314 | wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " |
| 1315 | "present in scan results; selected BSSID " MACSTR, |
| 1316 | MAC2STR(selected->bssid)); |
| 1317 | |
| 1318 | /* Make sure that only one AP is in active PBC mode */ |
| 1319 | wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); |
| 1320 | if (wps_ie) { |
| 1321 | sel_uuid = wps_get_uuid_e(wps_ie); |
| 1322 | wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", |
| 1323 | sel_uuid, UUID_LEN); |
| 1324 | } else { |
| 1325 | wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " |
| 1326 | "WPS IE?!"); |
| 1327 | sel_uuid = NULL; |
| 1328 | } |
| 1329 | |
| 1330 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| 1331 | struct wpabuf *ie; |
| 1332 | if (bss == selected) |
| 1333 | continue; |
| 1334 | ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); |
| 1335 | if (!ie) |
| 1336 | continue; |
| 1337 | if (!wps_is_selected_pbc_registrar(ie)) { |
| 1338 | wpabuf_free(ie); |
| 1339 | continue; |
| 1340 | } |
| 1341 | wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " |
| 1342 | MACSTR, MAC2STR(bss->bssid)); |
| 1343 | uuid = wps_get_uuid_e(ie); |
| 1344 | wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", |
| 1345 | uuid, UUID_LEN); |
| 1346 | if (sel_uuid == NULL || uuid == NULL || |
| 1347 | os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) { |
| 1348 | ret = 1; /* PBC overlap */ |
| 1349 | wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " |
| 1350 | MACSTR " and " MACSTR, |
| 1351 | MAC2STR(selected->bssid), |
| 1352 | MAC2STR(bss->bssid)); |
| 1353 | wpabuf_free(ie); |
| 1354 | break; |
| 1355 | } |
| 1356 | |
| 1357 | /* TODO: verify that this is reasonable dual-band situation */ |
| 1358 | |
| 1359 | wpabuf_free(ie); |
| 1360 | } |
| 1361 | |
| 1362 | wpabuf_free(wps_ie); |
| 1363 | |
| 1364 | return ret; |
| 1365 | } |
| 1366 | |
| 1367 | |
| 1368 | void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) |
| 1369 | { |
| 1370 | struct wpa_bss *bss; |
| 1371 | unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; |
| 1372 | |
| 1373 | if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) |
| 1374 | return; |
| 1375 | |
| 1376 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| 1377 | struct wpabuf *ie; |
| 1378 | ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); |
| 1379 | if (!ie) |
| 1380 | continue; |
| 1381 | if (wps_is_selected_pbc_registrar(ie)) |
| 1382 | pbc++; |
| 1383 | else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) |
| 1384 | auth++; |
| 1385 | else if (wps_is_selected_pin_registrar(ie)) |
| 1386 | pin++; |
| 1387 | else |
| 1388 | wps++; |
| 1389 | wpabuf_free(ie); |
| 1390 | } |
| 1391 | |
| 1392 | if (pbc) |
| 1393 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); |
| 1394 | else if (auth) |
| 1395 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); |
| 1396 | else if (pin) |
| 1397 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); |
| 1398 | else if (wps) |
| 1399 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); |
| 1400 | } |
| 1401 | |
| 1402 | |
| 1403 | int wpas_wps_searching(struct wpa_supplicant *wpa_s) |
| 1404 | { |
| 1405 | struct wpa_ssid *ssid; |
| 1406 | |
| 1407 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { |
| 1408 | if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) |
| 1409 | return 1; |
| 1410 | } |
| 1411 | |
| 1412 | return 0; |
| 1413 | } |
| 1414 | |
| 1415 | |
| 1416 | int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, |
| 1417 | char *end) |
| 1418 | { |
| 1419 | struct wpabuf *wps_ie; |
| 1420 | int ret; |
| 1421 | |
| 1422 | wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); |
| 1423 | if (wps_ie == NULL) |
| 1424 | return 0; |
| 1425 | |
| 1426 | ret = wps_attr_text(wps_ie, buf, end); |
| 1427 | wpabuf_free(wps_ie); |
| 1428 | return ret; |
| 1429 | } |
| 1430 | |
| 1431 | |
| 1432 | int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) |
| 1433 | { |
| 1434 | #ifdef CONFIG_WPS_ER |
| 1435 | if (wpa_s->wps_er) { |
| 1436 | wps_er_refresh(wpa_s->wps_er); |
| 1437 | return 0; |
| 1438 | } |
| 1439 | wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); |
| 1440 | if (wpa_s->wps_er == NULL) |
| 1441 | return -1; |
| 1442 | return 0; |
| 1443 | #else /* CONFIG_WPS_ER */ |
| 1444 | return 0; |
| 1445 | #endif /* CONFIG_WPS_ER */ |
| 1446 | } |
| 1447 | |
| 1448 | |
| 1449 | int wpas_wps_er_stop(struct wpa_supplicant *wpa_s) |
| 1450 | { |
| 1451 | #ifdef CONFIG_WPS_ER |
| 1452 | wps_er_deinit(wpa_s->wps_er, NULL, NULL); |
| 1453 | wpa_s->wps_er = NULL; |
| 1454 | #endif /* CONFIG_WPS_ER */ |
| 1455 | return 0; |
| 1456 | } |
| 1457 | |
| 1458 | |
| 1459 | #ifdef CONFIG_WPS_ER |
| 1460 | int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, |
| 1461 | const char *uuid, const char *pin) |
| 1462 | { |
| 1463 | u8 u[UUID_LEN]; |
| 1464 | int any = 0; |
| 1465 | |
| 1466 | if (os_strcmp(uuid, "any") == 0) |
| 1467 | any = 1; |
| 1468 | else if (uuid_str2bin(uuid, u)) |
| 1469 | return -1; |
| 1470 | return wps_registrar_add_pin(wpa_s->wps->registrar, addr, |
| 1471 | any ? NULL : u, |
| 1472 | (const u8 *) pin, os_strlen(pin), 300); |
| 1473 | } |
| 1474 | |
| 1475 | |
| 1476 | int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) |
| 1477 | { |
| 1478 | u8 u[UUID_LEN]; |
| 1479 | |
| 1480 | if (uuid_str2bin(uuid, u)) |
| 1481 | return -1; |
| 1482 | return wps_er_pbc(wpa_s->wps_er, u); |
| 1483 | } |
| 1484 | |
| 1485 | |
| 1486 | int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, |
| 1487 | const char *pin) |
| 1488 | { |
| 1489 | u8 u[UUID_LEN]; |
| 1490 | |
| 1491 | if (uuid_str2bin(uuid, u)) |
| 1492 | return -1; |
| 1493 | return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin, |
| 1494 | os_strlen(pin)); |
| 1495 | } |
| 1496 | |
| 1497 | |
| 1498 | int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, |
| 1499 | int id) |
| 1500 | { |
| 1501 | u8 u[UUID_LEN]; |
| 1502 | struct wpa_ssid *ssid; |
| 1503 | struct wps_credential cred; |
| 1504 | |
| 1505 | if (uuid_str2bin(uuid, u)) |
| 1506 | return -1; |
| 1507 | ssid = wpa_config_get_network(wpa_s->conf, id); |
| 1508 | if (ssid == NULL || ssid->ssid == NULL) |
| 1509 | return -1; |
| 1510 | |
| 1511 | os_memset(&cred, 0, sizeof(cred)); |
| 1512 | if (ssid->ssid_len > 32) |
| 1513 | return -1; |
| 1514 | os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len); |
| 1515 | cred.ssid_len = ssid->ssid_len; |
| 1516 | if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { |
| 1517 | cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ? |
| 1518 | WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; |
| 1519 | if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) |
| 1520 | cred.encr_type = WPS_ENCR_AES; |
| 1521 | else |
| 1522 | cred.encr_type = WPS_ENCR_TKIP; |
| 1523 | if (ssid->passphrase) { |
| 1524 | cred.key_len = os_strlen(ssid->passphrase); |
| 1525 | if (cred.key_len >= 64) |
| 1526 | return -1; |
| 1527 | os_memcpy(cred.key, ssid->passphrase, cred.key_len); |
| 1528 | } else if (ssid->psk_set) { |
| 1529 | cred.key_len = 32; |
| 1530 | os_memcpy(cred.key, ssid->psk, 32); |
| 1531 | } else |
| 1532 | return -1; |
| 1533 | } else { |
| 1534 | cred.auth_type = WPS_AUTH_OPEN; |
| 1535 | cred.encr_type = WPS_ENCR_NONE; |
| 1536 | } |
| 1537 | return wps_er_set_config(wpa_s->wps_er, u, &cred); |
| 1538 | } |
| 1539 | |
| 1540 | |
| 1541 | int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, |
| 1542 | const char *pin, struct wps_new_ap_settings *settings) |
| 1543 | { |
| 1544 | u8 u[UUID_LEN]; |
| 1545 | struct wps_credential cred; |
| 1546 | size_t len; |
| 1547 | |
| 1548 | if (uuid_str2bin(uuid, u)) |
| 1549 | return -1; |
| 1550 | if (settings->ssid_hex == NULL || settings->auth == NULL || |
| 1551 | settings->encr == NULL || settings->key_hex == NULL) |
| 1552 | return -1; |
| 1553 | |
| 1554 | os_memset(&cred, 0, sizeof(cred)); |
| 1555 | len = os_strlen(settings->ssid_hex); |
| 1556 | if ((len & 1) || len > 2 * sizeof(cred.ssid) || |
| 1557 | hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) |
| 1558 | return -1; |
| 1559 | cred.ssid_len = len / 2; |
| 1560 | |
| 1561 | len = os_strlen(settings->key_hex); |
| 1562 | if ((len & 1) || len > 2 * sizeof(cred.key) || |
| 1563 | hexstr2bin(settings->key_hex, cred.key, len / 2)) |
| 1564 | return -1; |
| 1565 | cred.key_len = len / 2; |
| 1566 | |
| 1567 | if (os_strcmp(settings->auth, "OPEN") == 0) |
| 1568 | cred.auth_type = WPS_AUTH_OPEN; |
| 1569 | else if (os_strcmp(settings->auth, "WPAPSK") == 0) |
| 1570 | cred.auth_type = WPS_AUTH_WPAPSK; |
| 1571 | else if (os_strcmp(settings->auth, "WPA2PSK") == 0) |
| 1572 | cred.auth_type = WPS_AUTH_WPA2PSK; |
| 1573 | else |
| 1574 | return -1; |
| 1575 | |
| 1576 | if (os_strcmp(settings->encr, "NONE") == 0) |
| 1577 | cred.encr_type = WPS_ENCR_NONE; |
| 1578 | else if (os_strcmp(settings->encr, "WEP") == 0) |
| 1579 | cred.encr_type = WPS_ENCR_WEP; |
| 1580 | else if (os_strcmp(settings->encr, "TKIP") == 0) |
| 1581 | cred.encr_type = WPS_ENCR_TKIP; |
| 1582 | else if (os_strcmp(settings->encr, "CCMP") == 0) |
| 1583 | cred.encr_type = WPS_ENCR_AES; |
| 1584 | else |
| 1585 | return -1; |
| 1586 | |
| 1587 | return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin, |
| 1588 | os_strlen(pin), &cred); |
| 1589 | } |
| 1590 | |
| 1591 | |
| 1592 | static int callbacks_pending = 0; |
| 1593 | |
| 1594 | static void wpas_wps_terminate_cb(void *ctx) |
| 1595 | { |
| 1596 | wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); |
| 1597 | if (--callbacks_pending <= 0) |
| 1598 | eloop_terminate(); |
| 1599 | } |
| 1600 | #endif /* CONFIG_WPS_ER */ |
| 1601 | |
| 1602 | |
| 1603 | int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) |
| 1604 | { |
| 1605 | #ifdef CONFIG_WPS_ER |
| 1606 | if (wpa_s->wps_er) { |
| 1607 | callbacks_pending++; |
| 1608 | wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); |
| 1609 | wpa_s->wps_er = NULL; |
| 1610 | return 1; |
| 1611 | } |
| 1612 | #endif /* CONFIG_WPS_ER */ |
| 1613 | return 0; |
| 1614 | } |
| 1615 | |
| 1616 | |
| 1617 | int wpas_wps_in_progress(struct wpa_supplicant *wpa_s) |
| 1618 | { |
| 1619 | struct wpa_ssid *ssid; |
| 1620 | |
| 1621 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { |
| 1622 | if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS) |
| 1623 | return 1; |
| 1624 | } |
| 1625 | |
| 1626 | return 0; |
| 1627 | } |
| 1628 | |
| 1629 | |
| 1630 | void wpas_wps_update_config(struct wpa_supplicant *wpa_s) |
| 1631 | { |
| 1632 | struct wps_context *wps = wpa_s->wps; |
| 1633 | |
| 1634 | if (wps == NULL) |
| 1635 | return; |
| 1636 | |
| 1637 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { |
| 1638 | wps->config_methods = wps_config_methods_str2bin( |
| 1639 | wpa_s->conf->config_methods); |
| 1640 | if ((wps->config_methods & |
| 1641 | (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == |
| 1642 | (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { |
| 1643 | wpa_printf(MSG_ERROR, "WPS: Both Label and Display " |
| 1644 | "config methods are not allowed at the " |
| 1645 | "same time"); |
| 1646 | wps->config_methods &= ~WPS_CONFIG_LABEL; |
| 1647 | } |
| 1648 | } |
| 1649 | wps->config_methods = wps_fix_config_methods(wps->config_methods); |
| 1650 | |
| 1651 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) |
| 1652 | os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, |
| 1653 | WPS_DEV_TYPE_LEN); |
| 1654 | |
| 1655 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { |
| 1656 | wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; |
| 1657 | os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, |
| 1658 | wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); |
| 1659 | } |
| 1660 | |
| 1661 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) |
| 1662 | wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); |
| 1663 | |
| 1664 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) |
| 1665 | wpas_wps_set_uuid(wpa_s, wps); |
| 1666 | |
| 1667 | if (wpa_s->conf->changed_parameters & |
| 1668 | (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { |
| 1669 | /* Update pointers to make sure they refer current values */ |
| 1670 | wps->dev.device_name = wpa_s->conf->device_name; |
| 1671 | wps->dev.manufacturer = wpa_s->conf->manufacturer; |
| 1672 | wps->dev.model_name = wpa_s->conf->model_name; |
| 1673 | wps->dev.model_number = wpa_s->conf->model_number; |
| 1674 | wps->dev.serial_number = wpa_s->conf->serial_number; |
| 1675 | } |
| 1676 | } |