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00015 #include "utils/includes.h"
00016
00017 #include "utils/common.h"
00018 #include "utils/eloop.h"
00019 #include "utils/uuid.h"
00020 #include "crypto/dh_groups.h"
00021 #include "common/wpa_ctrl.h"
00022 #include "common/ieee802_11_defs.h"
00023 #include "common/ieee802_11_common.h"
00024 #include "eapol_auth/eapol_auth_sm.h"
00025 #include "eapol_auth/eapol_auth_sm_i.h"
00026 #include "wps/wps.h"
00027 #include "wps/wps_defs.h"
00028 #include "wps/wps_dev_attr.h"
00029 #include "hostapd.h"
00030 #include "ap_config.h"
00031 #include "beacon.h"
00032 #include "sta_info.h"
00033 #include "wps_hostapd.h"
00034
00035
00036 #ifdef CONFIG_WPS_UPNP
00037 #include "wps/wps_upnp.h"
00038 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
00039 struct wps_context *wps);
00040 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
00041 #endif
00042
00043 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
00044 const u8 *ie, size_t ie_len);
00045
00046
00047 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
00048 size_t psk_len)
00049 {
00050 struct hostapd_data *hapd = ctx;
00051 struct hostapd_wpa_psk *p;
00052 struct hostapd_ssid *ssid = &hapd->conf->ssid;
00053
00054 wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
00055 MACSTR, MAC2STR(mac_addr));
00056 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
00057
00058 if (psk_len != PMK_LEN) {
00059 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
00060 (unsigned long) psk_len);
00061 return -1;
00062 }
00063
00064
00065 p = os_zalloc(sizeof(*p));
00066 if (p == NULL)
00067 return -1;
00068 os_memcpy(p->addr, mac_addr, ETH_ALEN);
00069 os_memcpy(p->psk, psk, PMK_LEN);
00070
00071 p->next = ssid->wpa_psk;
00072 ssid->wpa_psk = p;
00073
00074 if (ssid->wpa_psk_file) {
00075 FILE *f;
00076 char hex[PMK_LEN * 2 + 1];
00077
00078 f = fopen(ssid->wpa_psk_file, "a");
00079 if (f == NULL) {
00080 wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
00081 "'%s'", ssid->wpa_psk_file);
00082 return -1;
00083 }
00084
00085 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
00086 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
00087 fclose(f);
00088 }
00089
00090 return 0;
00091 }
00092
00093
00094 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
00095 struct wpabuf *probe_resp_ie)
00096 {
00097 struct hostapd_data *hapd = ctx;
00098 wpabuf_free(hapd->wps_beacon_ie);
00099 hapd->wps_beacon_ie = beacon_ie;
00100 wpabuf_free(hapd->wps_probe_resp_ie);
00101 hapd->wps_probe_resp_ie = probe_resp_ie;
00102 ieee802_11_set_beacon(hapd);
00103 return hapd->drv.set_ap_wps_ie(hapd);
00104 }
00105
00106
00107 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
00108 const struct wps_device_data *dev)
00109 {
00110 struct hostapd_data *hapd = ctx;
00111 char uuid[40], txt[400];
00112 int len;
00113 char devtype[WPS_DEV_TYPE_BUFSIZE];
00114 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
00115 return;
00116 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
00117 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
00118 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
00119 uuid, MAC2STR(dev->mac_addr), dev->device_name,
00120 dev->manufacturer, dev->model_name,
00121 dev->model_number, dev->serial_number,
00122 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
00123 sizeof(devtype)));
00124 if (len > 0 && len < (int) sizeof(txt))
00125 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
00126
00127 if (hapd->conf->wps_pin_requests) {
00128 FILE *f;
00129 struct os_time t;
00130 f = fopen(hapd->conf->wps_pin_requests, "a");
00131 if (f == NULL)
00132 return;
00133 os_get_time(&t);
00134 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
00135 "\t%s\n",
00136 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
00137 dev->manufacturer, dev->model_name, dev->model_number,
00138 dev->serial_number,
00139 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
00140 sizeof(devtype)));
00141 fclose(f);
00142 }
00143 }
00144
00145
00146 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
00147 const u8 *uuid_e)
00148 {
00149 struct hostapd_data *hapd = ctx;
00150 char uuid[40];
00151 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
00152 return;
00153 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
00154 MAC2STR(mac_addr), uuid);
00155 if (hapd->wps_reg_success_cb)
00156 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
00157 mac_addr, uuid_e);
00158 }
00159
00160
00161 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
00162 const u8 *uuid_e,
00163 const u8 *pri_dev_type,
00164 u16 config_methods,
00165 u16 dev_password_id, u8 request_type,
00166 const char *dev_name)
00167 {
00168 struct hostapd_data *hapd = ctx;
00169 char uuid[40];
00170 char devtype[WPS_DEV_TYPE_BUFSIZE];
00171 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
00172 return;
00173 if (dev_name == NULL)
00174 dev_name = "";
00175 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
00176 " %s %s 0x%x %u %u [%s]",
00177 MAC2STR(addr), uuid,
00178 wps_dev_type_bin2str(pri_dev_type, devtype,
00179 sizeof(devtype)),
00180 config_methods, dev_password_id, request_type, dev_name);
00181 }
00182
00183
00184 static int str_starts(const char *str, const char *start)
00185 {
00186 return os_strncmp(str, start, os_strlen(start)) == 0;
00187 }
00188
00189
00190 static void wps_reload_config(void *eloop_data, void *user_ctx)
00191 {
00192 struct hostapd_iface *iface = eloop_data;
00193
00194 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
00195 if (iface->reload_config(iface) < 0) {
00196 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
00197 "configuration");
00198 }
00199 }
00200
00201
00202 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
00203 {
00204 struct hostapd_data *hapd = ctx;
00205 FILE *oconf, *nconf;
00206 size_t len, i;
00207 char *tmp_fname;
00208 char buf[1024];
00209 int multi_bss;
00210 int wpa;
00211
00212 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
00213 cred->cred_attr, cred->cred_attr_len);
00214
00215 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
00216 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
00217 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
00218 cred->auth_type);
00219 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
00220 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
00221 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
00222 cred->key, cred->key_len);
00223 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
00224 MAC2STR(cred->mac_addr));
00225
00226 if ((hapd->conf->wps_cred_processing == 1 ||
00227 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
00228 size_t blen = cred->cred_attr_len * 2 + 1;
00229 char *_buf = os_malloc(blen);
00230 if (_buf) {
00231 wpa_snprintf_hex(_buf, blen,
00232 cred->cred_attr, cred->cred_attr_len);
00233 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
00234 WPS_EVENT_NEW_AP_SETTINGS, _buf);
00235 os_free(_buf);
00236 }
00237 } else
00238 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
00239
00240 if (hapd->conf->wps_cred_processing == 1)
00241 return 0;
00242
00243 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
00244 hapd->wps->ssid_len = cred->ssid_len;
00245 hapd->wps->encr_types = cred->encr_type;
00246 hapd->wps->auth_types = cred->auth_type;
00247 if (cred->key_len == 0) {
00248 os_free(hapd->wps->network_key);
00249 hapd->wps->network_key = NULL;
00250 hapd->wps->network_key_len = 0;
00251 } else {
00252 if (hapd->wps->network_key == NULL ||
00253 hapd->wps->network_key_len < cred->key_len) {
00254 hapd->wps->network_key_len = 0;
00255 os_free(hapd->wps->network_key);
00256 hapd->wps->network_key = os_malloc(cred->key_len);
00257 if (hapd->wps->network_key == NULL)
00258 return -1;
00259 }
00260 hapd->wps->network_key_len = cred->key_len;
00261 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
00262 }
00263 hapd->wps->wps_state = WPS_STATE_CONFIGURED;
00264
00265 len = os_strlen(hapd->iface->config_fname) + 5;
00266 tmp_fname = os_malloc(len);
00267 if (tmp_fname == NULL)
00268 return -1;
00269 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
00270
00271 oconf = fopen(hapd->iface->config_fname, "r");
00272 if (oconf == NULL) {
00273 wpa_printf(MSG_WARNING, "WPS: Could not open current "
00274 "configuration file");
00275 os_free(tmp_fname);
00276 return -1;
00277 }
00278
00279 nconf = fopen(tmp_fname, "w");
00280 if (nconf == NULL) {
00281 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
00282 "configuration file");
00283 os_free(tmp_fname);
00284 fclose(oconf);
00285 return -1;
00286 }
00287
00288 fprintf(nconf, "# WPS configuration - START\n");
00289
00290 fprintf(nconf, "wps_state=2\n");
00291
00292 fprintf(nconf, "ssid=");
00293 for (i = 0; i < cred->ssid_len; i++)
00294 fputc(cred->ssid[i], nconf);
00295 fprintf(nconf, "\n");
00296
00297 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
00298 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
00299 wpa = 3;
00300 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
00301 wpa = 2;
00302 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
00303 wpa = 1;
00304 else
00305 wpa = 0;
00306
00307 if (wpa) {
00308 char *prefix;
00309 fprintf(nconf, "wpa=%d\n", wpa);
00310
00311 fprintf(nconf, "wpa_key_mgmt=");
00312 prefix = "";
00313 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
00314 fprintf(nconf, "WPA-EAP");
00315 prefix = " ";
00316 }
00317 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
00318 fprintf(nconf, "%sWPA-PSK", prefix);
00319 fprintf(nconf, "\n");
00320
00321 fprintf(nconf, "wpa_pairwise=");
00322 prefix = "";
00323 if (cred->encr_type & WPS_ENCR_AES) {
00324 fprintf(nconf, "CCMP");
00325 prefix = " ";
00326 }
00327 if (cred->encr_type & WPS_ENCR_TKIP) {
00328 fprintf(nconf, "%sTKIP", prefix);
00329 }
00330 fprintf(nconf, "\n");
00331
00332 if (cred->key_len >= 8 && cred->key_len < 64) {
00333 fprintf(nconf, "wpa_passphrase=");
00334 for (i = 0; i < cred->key_len; i++)
00335 fputc(cred->key[i], nconf);
00336 fprintf(nconf, "\n");
00337 } else if (cred->key_len == 64) {
00338 fprintf(nconf, "wpa_psk=");
00339 for (i = 0; i < cred->key_len; i++)
00340 fputc(cred->key[i], nconf);
00341 fprintf(nconf, "\n");
00342 } else {
00343 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
00344 "for WPA/WPA2",
00345 (unsigned long) cred->key_len);
00346 }
00347
00348 fprintf(nconf, "auth_algs=1\n");
00349 } else {
00350 if ((cred->auth_type & WPS_AUTH_OPEN) &&
00351 (cred->auth_type & WPS_AUTH_SHARED))
00352 fprintf(nconf, "auth_algs=3\n");
00353 else if (cred->auth_type & WPS_AUTH_SHARED)
00354 fprintf(nconf, "auth_algs=2\n");
00355 else
00356 fprintf(nconf, "auth_algs=1\n");
00357
00358 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
00359 int key_idx = cred->key_idx;
00360 if (key_idx)
00361 key_idx--;
00362 fprintf(nconf, "wep_default_key=%d\n", key_idx);
00363 fprintf(nconf, "wep_key%d=", key_idx);
00364 if (cred->key_len == 10 || cred->key_len == 26) {
00365
00366 for (i = 0; i < cred->key_len; i++)
00367 fputc(cred->key[i], nconf);
00368 } else {
00369
00370 for (i = 0; i < cred->key_len; i++)
00371 fprintf(nconf, "%02x", cred->key[i]);
00372 }
00373 fprintf(nconf, "\n");
00374 }
00375 }
00376
00377 fprintf(nconf, "# WPS configuration - END\n");
00378
00379 multi_bss = 0;
00380 while (fgets(buf, sizeof(buf), oconf)) {
00381 if (os_strncmp(buf, "bss=", 4) == 0)
00382 multi_bss = 1;
00383 if (!multi_bss &&
00384 (str_starts(buf, "ssid=") ||
00385 str_starts(buf, "auth_algs=") ||
00386 str_starts(buf, "wps_state=") ||
00387 str_starts(buf, "wpa=") ||
00388 str_starts(buf, "wpa_psk=") ||
00389 str_starts(buf, "wpa_pairwise=") ||
00390 str_starts(buf, "rsn_pairwise=") ||
00391 str_starts(buf, "wpa_key_mgmt=") ||
00392 str_starts(buf, "wpa_passphrase="))) {
00393 fprintf(nconf, "#WPS# %s", buf);
00394 } else
00395 fprintf(nconf, "%s", buf);
00396 }
00397
00398 fclose(nconf);
00399 fclose(oconf);
00400
00401 if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
00402 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
00403 "configuration file: %s", strerror(errno));
00404 os_free(tmp_fname);
00405 return -1;
00406 }
00407
00408 os_free(tmp_fname);
00409
00410
00411
00412
00413 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
00414 NULL);
00415
00416
00417
00418 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
00419
00420 return 0;
00421 }
00422
00423
00424 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
00425 struct wps_event_pwd_auth_fail *data)
00426 {
00427 FILE *f;
00428
00429 if (!data->enrollee)
00430 return;
00431
00432
00433
00434
00435
00436 hapd->ap_pin_failures++;
00437 if (hapd->ap_pin_failures < 4)
00438 return;
00439
00440 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
00441 hapd->wps->ap_setup_locked = 1;
00442
00443 wps_registrar_update_ie(hapd->wps->registrar);
00444
00445 if (hapd->conf->wps_cred_processing == 1)
00446 return;
00447
00448 f = fopen(hapd->iface->config_fname, "a");
00449 if (f == NULL) {
00450 wpa_printf(MSG_WARNING, "WPS: Could not append to the current "
00451 "configuration file");
00452 return;
00453 }
00454
00455 fprintf(f, "# WPS AP Setup Locked based on possible attack\n");
00456 fprintf(f, "ap_setup_locked=1\n");
00457 fclose(f);
00458
00459
00460
00461 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
00462 }
00463
00464
00465 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
00466 union wps_event_data *data)
00467 {
00468 struct hostapd_data *hapd = ctx;
00469
00470 if (event == WPS_EV_PWD_AUTH_FAIL)
00471 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
00472 }
00473
00474
00475 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
00476 {
00477 wpabuf_free(hapd->wps_beacon_ie);
00478 hapd->wps_beacon_ie = NULL;
00479
00480 wpabuf_free(hapd->wps_probe_resp_ie);
00481 hapd->wps_probe_resp_ie = NULL;
00482
00483 hapd->drv.set_ap_wps_ie(hapd);
00484 }
00485
00486
00487 int hostapd_init_wps(struct hostapd_data *hapd,
00488 struct hostapd_bss_config *conf)
00489 {
00490 struct wps_context *wps;
00491 struct wps_registrar_config cfg;
00492
00493 if (conf->wps_state == 0) {
00494 hostapd_wps_clear_ies(hapd);
00495 return 0;
00496 }
00497
00498 wps = os_zalloc(sizeof(*wps));
00499 if (wps == NULL)
00500 return -1;
00501
00502 wps->cred_cb = hostapd_wps_cred_cb;
00503 wps->event_cb = hostapd_wps_event_cb;
00504 wps->cb_ctx = hapd;
00505
00506 os_memset(&cfg, 0, sizeof(cfg));
00507 wps->wps_state = hapd->conf->wps_state;
00508 wps->ap_setup_locked = hapd->conf->ap_setup_locked;
00509 if (is_nil_uuid(hapd->conf->uuid)) {
00510 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
00511 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
00512 wps->uuid, UUID_LEN);
00513 } else
00514 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
00515 wps->ssid_len = hapd->conf->ssid.ssid_len;
00516 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
00517 wps->ap = 1;
00518 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
00519 wps->dev.device_name = hapd->conf->device_name ?
00520 os_strdup(hapd->conf->device_name) : NULL;
00521 wps->dev.manufacturer = hapd->conf->manufacturer ?
00522 os_strdup(hapd->conf->manufacturer) : NULL;
00523 wps->dev.model_name = hapd->conf->model_name ?
00524 os_strdup(hapd->conf->model_name) : NULL;
00525 wps->dev.model_number = hapd->conf->model_number ?
00526 os_strdup(hapd->conf->model_number) : NULL;
00527 wps->dev.serial_number = hapd->conf->serial_number ?
00528 os_strdup(hapd->conf->serial_number) : NULL;
00529 wps->config_methods =
00530 wps_config_methods_str2bin(hapd->conf->config_methods);
00531 if (hapd->conf->device_type &&
00532 wps_dev_type_str2bin(hapd->conf->device_type,
00533 wps->dev.pri_dev_type) < 0) {
00534 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
00535 os_free(wps);
00536 return -1;
00537 }
00538 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
00539 wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
00540 WPS_RF_50GHZ : WPS_RF_24GHZ;
00541
00542 if (conf->wpa & WPA_PROTO_RSN) {
00543 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
00544 wps->auth_types |= WPS_AUTH_WPA2PSK;
00545 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
00546 wps->auth_types |= WPS_AUTH_WPA2;
00547
00548 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
00549 wps->encr_types |= WPS_ENCR_AES;
00550 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
00551 wps->encr_types |= WPS_ENCR_TKIP;
00552 }
00553
00554 if (conf->wpa & WPA_PROTO_WPA) {
00555 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
00556 wps->auth_types |= WPS_AUTH_WPAPSK;
00557 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
00558 wps->auth_types |= WPS_AUTH_WPA;
00559
00560 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
00561 wps->encr_types |= WPS_ENCR_AES;
00562 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
00563 wps->encr_types |= WPS_ENCR_TKIP;
00564 }
00565
00566 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
00567 wps->encr_types |= WPS_ENCR_NONE;
00568 wps->auth_types |= WPS_AUTH_OPEN;
00569 } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
00570 wps->encr_types |= WPS_ENCR_WEP;
00571 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
00572 wps->auth_types |= WPS_AUTH_OPEN;
00573 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
00574 wps->auth_types |= WPS_AUTH_SHARED;
00575 } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
00576 wps->auth_types |= WPS_AUTH_OPEN;
00577 if (conf->default_wep_key_len)
00578 wps->encr_types |= WPS_ENCR_WEP;
00579 else
00580 wps->encr_types |= WPS_ENCR_NONE;
00581 }
00582
00583 if (conf->ssid.wpa_psk_file) {
00584
00585 } else if (conf->ssid.wpa_passphrase) {
00586 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
00587 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
00588 } else if (conf->ssid.wpa_psk) {
00589 wps->network_key = os_malloc(2 * PMK_LEN + 1);
00590 if (wps->network_key == NULL) {
00591 os_free(wps);
00592 return -1;
00593 }
00594 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
00595 conf->ssid.wpa_psk->psk, PMK_LEN);
00596 wps->network_key_len = 2 * PMK_LEN;
00597 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
00598 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
00599 if (wps->network_key == NULL) {
00600 os_free(wps);
00601 return -1;
00602 }
00603 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
00604 conf->ssid.wep.len[0]);
00605 wps->network_key_len = conf->ssid.wep.len[0];
00606 }
00607
00608 if (conf->ssid.wpa_psk) {
00609 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
00610 wps->psk_set = 1;
00611 }
00612
00613 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
00614
00615 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
00616 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
00617 }
00618
00619 wps->ap_settings = conf->ap_settings;
00620 wps->ap_settings_len = conf->ap_settings_len;
00621
00622 cfg.new_psk_cb = hostapd_wps_new_psk_cb;
00623 cfg.set_ie_cb = hostapd_wps_set_ie_cb;
00624 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
00625 cfg.reg_success_cb = hostapd_wps_reg_success_cb;
00626 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
00627 cfg.cb_ctx = hapd;
00628 cfg.skip_cred_build = conf->skip_cred_build;
00629 cfg.extra_cred = conf->extra_cred;
00630 cfg.extra_cred_len = conf->extra_cred_len;
00631 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
00632 conf->skip_cred_build;
00633 if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
00634 cfg.static_wep_only = 1;
00635
00636 wps->registrar = wps_registrar_init(wps, &cfg);
00637 if (wps->registrar == NULL) {
00638 printf("Failed to initialize WPS Registrar\n");
00639 os_free(wps->network_key);
00640 os_free(wps);
00641 return -1;
00642 }
00643
00644 #ifdef CONFIG_WPS_UPNP
00645 wps->friendly_name = hapd->conf->friendly_name;
00646 wps->manufacturer_url = hapd->conf->manufacturer_url;
00647 wps->model_description = hapd->conf->model_description;
00648 wps->model_url = hapd->conf->model_url;
00649 wps->upc = hapd->conf->upc;
00650
00651 if (hostapd_wps_upnp_init(hapd, wps) < 0) {
00652 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
00653 wps_registrar_deinit(wps->registrar);
00654 os_free(wps->network_key);
00655 os_free(wps);
00656 return -1;
00657 }
00658 #endif
00659
00660 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
00661
00662 hapd->wps = wps;
00663
00664 return 0;
00665 }
00666
00667
00668 void hostapd_deinit_wps(struct hostapd_data *hapd)
00669 {
00670 if (hapd->wps == NULL)
00671 return;
00672 #ifdef CONFIG_WPS_UPNP
00673 hostapd_wps_upnp_deinit(hapd);
00674 #endif
00675 wps_registrar_deinit(hapd->wps->registrar);
00676 os_free(hapd->wps->network_key);
00677 wps_device_data_free(&hapd->wps->dev);
00678 wpabuf_free(hapd->wps->dh_pubkey);
00679 wpabuf_free(hapd->wps->dh_privkey);
00680 wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
00681 wpabuf_free(hapd->wps->oob_conf.dev_password);
00682 wps_free_pending_msgs(hapd->wps->upnp_msgs);
00683 os_free(hapd->wps);
00684 hapd->wps = NULL;
00685 hostapd_wps_clear_ies(hapd);
00686 }
00687
00688
00689 int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
00690 const char *pin, int timeout)
00691 {
00692 u8 u[UUID_LEN];
00693 int any = 0;
00694
00695 if (hapd->wps == NULL)
00696 return -1;
00697 if (os_strcmp(uuid, "any") == 0)
00698 any = 1;
00699 else if (uuid_str2bin(uuid, u))
00700 return -1;
00701 return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u,
00702 (const u8 *) pin, os_strlen(pin),
00703 timeout);
00704 }
00705
00706
00707 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
00708 {
00709 if (hapd->wps == NULL)
00710 return -1;
00711 return wps_registrar_button_pushed(hapd->wps->registrar);
00712 }
00713
00714
00715 #ifdef CONFIG_WPS_OOB
00716 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
00717 char *path, char *method, char *name)
00718 {
00719 struct wps_context *wps = hapd->wps;
00720 struct oob_device_data *oob_dev;
00721
00722 oob_dev = wps_get_oob_device(device_type);
00723 if (oob_dev == NULL)
00724 return -1;
00725 oob_dev->device_path = path;
00726 oob_dev->device_name = name;
00727 wps->oob_conf.oob_method = wps_get_oob_method(method);
00728
00729 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
00730
00731
00732
00733
00734 wpabuf_free(wps->dh_pubkey);
00735 wpabuf_free(wps->dh_privkey);
00736 wps->dh_privkey = NULL;
00737 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
00738 &wps->dh_privkey);
00739 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
00740 if (wps->dh_pubkey == NULL) {
00741 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
00742 "Diffie-Hellman handshake");
00743 return -1;
00744 }
00745 }
00746
00747 if (wps_process_oob(wps, oob_dev, 1) < 0)
00748 goto error;
00749
00750 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
00751 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
00752 hostapd_wps_add_pin(hapd, "any",
00753 wpabuf_head(wps->oob_conf.dev_password), 0) <
00754 0)
00755 goto error;
00756
00757 return 0;
00758
00759 error:
00760 wpabuf_free(wps->dh_pubkey);
00761 wps->dh_pubkey = NULL;
00762 wpabuf_free(wps->dh_privkey);
00763 wps->dh_privkey = NULL;
00764 return -1;
00765 }
00766 #endif
00767
00768
00769 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
00770 const u8 *ie, size_t ie_len)
00771 {
00772 struct hostapd_data *hapd = ctx;
00773 struct wpabuf *wps_ie;
00774
00775 if (hapd->wps == NULL)
00776 return 0;
00777
00778 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
00779 if (wps_ie == NULL)
00780 return 0;
00781
00782 if (wpabuf_len(wps_ie) > 0) {
00783 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie);
00784 #ifdef CONFIG_WPS_UPNP
00785
00786
00787 upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr,
00788 UPNP_WPS_WLANEVENT_TYPE_PROBE,
00789 wps_ie);
00790 #endif
00791 }
00792
00793 wpabuf_free(wps_ie);
00794
00795 return 0;
00796 }
00797
00798
00799 #ifdef CONFIG_WPS_UPNP
00800
00801 static int hostapd_rx_req_put_wlan_response(
00802 void *priv, enum upnp_wps_wlanevent_type ev_type,
00803 const u8 *mac_addr, const struct wpabuf *msg,
00804 enum wps_msg_type msg_type)
00805 {
00806 struct hostapd_data *hapd = priv;
00807 struct sta_info *sta;
00808 struct upnp_pending_message *p;
00809
00810 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
00811 MACSTR, ev_type, MAC2STR(mac_addr));
00812 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
00813 wpabuf_head(msg), wpabuf_len(msg));
00814 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
00815 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
00816 "PutWLANResponse WLANEventType %d", ev_type);
00817 return -1;
00818 }
00819
00820
00821
00822
00823
00824
00825 sta = ap_get_sta(hapd, mac_addr);
00826 if (!sta) {
00827
00828
00829
00830
00831
00832 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
00833 "on NewWLANEventMAC; try wildcard match");
00834 for (sta = hapd->sta_list; sta; sta = sta->next) {
00835 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
00836 break;
00837 }
00838 }
00839
00840 if (!sta) {
00841 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
00842 return 0;
00843 }
00844
00845 p = os_zalloc(sizeof(*p));
00846 if (p == NULL)
00847 return -1;
00848 os_memcpy(p->addr, sta->addr, ETH_ALEN);
00849 p->msg = wpabuf_dup(msg);
00850 p->type = msg_type;
00851 p->next = hapd->wps->upnp_msgs;
00852 hapd->wps->upnp_msgs = p;
00853
00854 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
00855 }
00856
00857
00858 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
00859 struct wps_context *wps)
00860 {
00861 struct upnp_wps_device_ctx *ctx;
00862
00863 if (!hapd->conf->upnp_iface)
00864 return 0;
00865 ctx = os_zalloc(sizeof(*ctx));
00866 if (ctx == NULL)
00867 return -1;
00868
00869 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
00870 if (hapd->conf->ap_pin)
00871 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
00872
00873 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
00874 if (hapd->wps_upnp == NULL) {
00875 os_free(ctx);
00876 return -1;
00877 }
00878 wps->wps_upnp = hapd->wps_upnp;
00879
00880 if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
00881 upnp_wps_device_deinit(hapd->wps_upnp);
00882 hapd->wps_upnp = NULL;
00883 return -1;
00884 }
00885
00886 return 0;
00887 }
00888
00889
00890 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
00891 {
00892 upnp_wps_device_deinit(hapd->wps_upnp);
00893 }
00894
00895 #endif
00896
00897
00898 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
00899 char *buf, size_t buflen)
00900 {
00901 if (hapd->wps == NULL)
00902 return 0;
00903 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
00904 }
