diff options
Diffstat (limited to 'hostapd/wps_hostapd.c')
| -rw-r--r-- | hostapd/wps_hostapd.c | 998 |
1 files changed, 998 insertions, 0 deletions
diff --git a/hostapd/wps_hostapd.c b/hostapd/wps_hostapd.c new file mode 100644 index 000000000000..a824c16dfbce --- /dev/null +++ b/hostapd/wps_hostapd.c @@ -0,0 +1,998 @@ +/* + * hostapd / WPS integration + * Copyright (c) 2008, Jouni Malinen <j@w1.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Alternatively, this software may be distributed under the terms of BSD + * license. + * + * See README and COPYING for more details. + */ + +#include "includes.h" + +#include "hostapd.h" +#include "driver.h" +#include "eloop.h" +#include "uuid.h" +#include "wpa_ctrl.h" +#include "ieee802_11_defs.h" +#include "sta_info.h" +#include "eapol_sm.h" +#include "wps/wps.h" +#include "wps/wps_defs.h" +#include "wps/wps_dev_attr.h" +#include "wps_hostapd.h" + + +#ifdef CONFIG_WPS_UPNP +#include "wps/wps_upnp.h" +static int hostapd_wps_upnp_init(struct hostapd_data *hapd, + struct wps_context *wps); +static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd); +#endif /* CONFIG_WPS_UPNP */ + + +static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk, + size_t psk_len) +{ + struct hostapd_data *hapd = ctx; + struct hostapd_wpa_psk *p; + struct hostapd_ssid *ssid = &hapd->conf->ssid; + + wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA " + MACSTR, MAC2STR(mac_addr)); + wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); + + if (psk_len != PMK_LEN) { + wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu", + (unsigned long) psk_len); + return -1; + } + + /* Add the new PSK to runtime PSK list */ + p = os_zalloc(sizeof(*p)); + if (p == NULL) + return -1; + os_memcpy(p->addr, mac_addr, ETH_ALEN); + os_memcpy(p->psk, psk, PMK_LEN); + + p->next = ssid->wpa_psk; + ssid->wpa_psk = p; + + if (ssid->wpa_psk_file) { + FILE *f; + char hex[PMK_LEN * 2 + 1]; + /* Add the new PSK to PSK list file */ + f = fopen(ssid->wpa_psk_file, "a"); + if (f == NULL) { + wpa_printf(MSG_DEBUG, "Failed to add the PSK to " + "'%s'", ssid->wpa_psk_file); + return -1; + } + + wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len); + fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex); + fclose(f); + } + + return 0; +} + + +static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie, + size_t beacon_ie_len, const u8 *probe_resp_ie, + size_t probe_resp_ie_len) +{ + struct hostapd_data *hapd = ctx; + + os_free(hapd->wps_beacon_ie); + if (beacon_ie_len == 0) { + hapd->wps_beacon_ie = NULL; + hapd->wps_beacon_ie_len = 0; + } else { + hapd->wps_beacon_ie = os_malloc(beacon_ie_len); + if (hapd->wps_beacon_ie == NULL) { + hapd->wps_beacon_ie_len = 0; + return -1; + } + os_memcpy(hapd->wps_beacon_ie, beacon_ie, beacon_ie_len); + hapd->wps_beacon_ie_len = beacon_ie_len; + } + hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie, + hapd->wps_beacon_ie_len); + + os_free(hapd->wps_probe_resp_ie); + if (probe_resp_ie_len == 0) { + hapd->wps_probe_resp_ie = NULL; + hapd->wps_probe_resp_ie_len = 0; + } else { + hapd->wps_probe_resp_ie = os_malloc(probe_resp_ie_len); + if (hapd->wps_probe_resp_ie == NULL) { + hapd->wps_probe_resp_ie_len = 0; + return -1; + } + os_memcpy(hapd->wps_probe_resp_ie, probe_resp_ie, + probe_resp_ie_len); + hapd->wps_probe_resp_ie_len = probe_resp_ie_len; + } + hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie, + hapd->wps_probe_resp_ie_len); + + return 0; +} + + +static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, + const struct wps_device_data *dev) +{ + struct hostapd_data *hapd = ctx; + char uuid[40], txt[400]; + int len; + if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) + return; + wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid); + len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED + "%s " MACSTR " [%s|%s|%s|%s|%s|%d-%08X-%d]", + uuid, MAC2STR(dev->mac_addr), dev->device_name, + dev->manufacturer, dev->model_name, + dev->model_number, dev->serial_number, + dev->categ, dev->oui, dev->sub_categ); + if (len > 0 && len < (int) sizeof(txt)) + wpa_msg(hapd, MSG_INFO, "%s", txt); + + if (hapd->conf->wps_pin_requests) { + FILE *f; + struct os_time t; + f = fopen(hapd->conf->wps_pin_requests, "a"); + if (f == NULL) + return; + os_get_time(&t); + fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s" + "\t%d-%08X-%d\n", + t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name, + dev->manufacturer, dev->model_name, dev->model_number, + dev->serial_number, + dev->categ, dev->oui, dev->sub_categ); + fclose(f); + } +} + + +static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr, + const u8 *uuid_e) +{ + struct hostapd_data *hapd = ctx; + char uuid[40]; + if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) + return; + wpa_msg(hapd, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s", + MAC2STR(mac_addr), uuid); +} + + +static int str_starts(const char *str, const char *start) +{ + return os_strncmp(str, start, os_strlen(start)) == 0; +} + + +static void wps_reload_config(void *eloop_data, void *user_ctx) +{ + struct hostapd_iface *iface = eloop_data; + + wpa_printf(MSG_DEBUG, "WPS: Reload configuration data"); + if (hostapd_reload_config(iface) < 0) { + wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated " + "configuration"); + } +} + + +static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred) +{ + struct hostapd_data *hapd = ctx; + FILE *oconf, *nconf; + size_t len, i; + char *tmp_fname; + char buf[1024]; + int multi_bss; + int wpa; + + wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", + cred->cred_attr, cred->cred_attr_len); + + wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings"); + wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); + wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", + cred->auth_type); + wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); + wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); + wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", + cred->key, cred->key_len); + wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, + MAC2STR(cred->mac_addr)); + + if ((hapd->conf->wps_cred_processing == 1 || + hapd->conf->wps_cred_processing == 2) && cred->cred_attr) { + size_t blen = cred->cred_attr_len * 2 + 1; + char *buf = os_malloc(blen); + if (buf) { + wpa_snprintf_hex(buf, blen, + cred->cred_attr, cred->cred_attr_len); + wpa_msg(hapd, MSG_INFO, "%s%s", + WPS_EVENT_NEW_AP_SETTINGS, buf); + os_free(buf); + } + } else + wpa_msg(hapd, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS); + + if (hapd->conf->wps_cred_processing == 1) + return 0; + + len = os_strlen(hapd->iface->config_fname) + 5; + tmp_fname = os_malloc(len); + if (tmp_fname == NULL) + return -1; + os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname); + + oconf = fopen(hapd->iface->config_fname, "r"); + if (oconf == NULL) { + wpa_printf(MSG_WARNING, "WPS: Could not open current " + "configuration file"); + os_free(tmp_fname); + return -1; + } + + nconf = fopen(tmp_fname, "w"); + if (nconf == NULL) { + wpa_printf(MSG_WARNING, "WPS: Could not write updated " + "configuration file"); + os_free(tmp_fname); + fclose(oconf); + return -1; + } + + fprintf(nconf, "# WPS configuration - START\n"); + + fprintf(nconf, "wps_state=2\n"); + + fprintf(nconf, "ssid="); + for (i = 0; i < cred->ssid_len; i++) + fputc(cred->ssid[i], nconf); + fprintf(nconf, "\n"); + + if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) && + (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))) + wpa = 3; + else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) + wpa = 2; + else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) + wpa = 1; + else + wpa = 0; + + if (wpa) { + char *prefix; + fprintf(nconf, "wpa=%d\n", wpa); + + fprintf(nconf, "wpa_key_mgmt="); + prefix = ""; + if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) { + fprintf(nconf, "WPA-EAP"); + prefix = " "; + } + if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) + fprintf(nconf, "%sWPA-PSK", prefix); + fprintf(nconf, "\n"); + + fprintf(nconf, "wpa_pairwise="); + prefix = ""; + if (cred->encr_type & WPS_ENCR_AES) { + fprintf(nconf, "CCMP"); + prefix = " "; + } + if (cred->encr_type & WPS_ENCR_TKIP) { + fprintf(nconf, "%sTKIP", prefix); + } + fprintf(nconf, "\n"); + + if (cred->key_len >= 8 && cred->key_len < 64) { + fprintf(nconf, "wpa_passphrase="); + for (i = 0; i < cred->key_len; i++) + fputc(cred->key[i], nconf); + fprintf(nconf, "\n"); + } else if (cred->key_len == 64) { + fprintf(nconf, "wpa_psk="); + for (i = 0; i < cred->key_len; i++) + fputc(cred->key[i], nconf); + fprintf(nconf, "\n"); + } else { + wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu " + "for WPA/WPA2", + (unsigned long) cred->key_len); + } + + fprintf(nconf, "auth_algs=1\n"); + } else { + if ((cred->auth_type & WPS_AUTH_OPEN) && + (cred->auth_type & WPS_AUTH_SHARED)) + fprintf(nconf, "auth_algs=3\n"); + else if (cred->auth_type & WPS_AUTH_SHARED) + fprintf(nconf, "auth_algs=2\n"); + else + fprintf(nconf, "auth_algs=1\n"); + + if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx < 4) { + fprintf(nconf, "wep_default_key=%d\n", cred->key_idx); + fprintf(nconf, "wep_key%d=", cred->key_idx); + if (cred->key_len != 10 && cred->key_len != 26) + fputc('"', nconf); + for (i = 0; i < cred->key_len; i++) + fputc(cred->key[i], nconf); + if (cred->key_len != 10 && cred->key_len != 26) + fputc('"', nconf); + fprintf(nconf, "\n"); + } + } + + fprintf(nconf, "# WPS configuration - END\n"); + + multi_bss = 0; + while (fgets(buf, sizeof(buf), oconf)) { + if (os_strncmp(buf, "bss=", 4) == 0) + multi_bss = 1; + if (!multi_bss && + (str_starts(buf, "ssid=") || + str_starts(buf, "auth_algs=") || + str_starts(buf, "wps_state=") || + str_starts(buf, "wpa=") || + str_starts(buf, "wpa_psk=") || + str_starts(buf, "wpa_pairwise=") || + str_starts(buf, "rsn_pairwise=") || + str_starts(buf, "wpa_key_mgmt=") || + str_starts(buf, "wpa_passphrase="))) { + fprintf(nconf, "#WPS# %s", buf); + } else + fprintf(nconf, "%s", buf); + } + + fclose(nconf); + fclose(oconf); + + if (rename(tmp_fname, hapd->iface->config_fname) < 0) { + wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated " + "configuration file: %s", strerror(errno)); + os_free(tmp_fname); + return -1; + } + + os_free(tmp_fname); + + /* Schedule configuration reload after short period of time to allow + * EAP-WSC to be finished. + */ + eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface, + NULL); + + /* TODO: dualband AP may need to update multiple configuration files */ + + wpa_printf(MSG_DEBUG, "WPS: AP configuration updated"); + + return 0; +} + + +static void hostapd_pwd_auth_fail(struct hostapd_data *hapd, + struct wps_event_pwd_auth_fail *data) +{ + FILE *f; + + if (!data->enrollee) + return; + + /* + * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup + * if this happens multiple times. + */ + hapd->ap_pin_failures++; + if (hapd->ap_pin_failures < 4) + return; + + wpa_msg(hapd, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED); + hapd->wps->ap_setup_locked = 1; + + wps_registrar_update_ie(hapd->wps->registrar); + + if (hapd->conf->wps_cred_processing == 1) + return; + + f = fopen(hapd->iface->config_fname, "a"); + if (f == NULL) { + wpa_printf(MSG_WARNING, "WPS: Could not append to the current " + "configuration file"); + return; + } + + fprintf(f, "# WPS AP Setup Locked based on possible attack\n"); + fprintf(f, "ap_setup_locked=1\n"); + fclose(f); + + /* TODO: dualband AP may need to update multiple configuration files */ + + wpa_printf(MSG_DEBUG, "WPS: AP configuration updated"); +} + + +static void hostapd_wps_event_cb(void *ctx, enum wps_event event, + union wps_event_data *data) +{ + struct hostapd_data *hapd = ctx; + + if (event == WPS_EV_PWD_AUTH_FAIL) + hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail); +} + + +static void hostapd_wps_clear_ies(struct hostapd_data *hapd) +{ + os_free(hapd->wps_beacon_ie); + hapd->wps_beacon_ie = NULL; + hapd->wps_beacon_ie_len = 0; + hostapd_set_wps_beacon_ie(hapd, NULL, 0); + + os_free(hapd->wps_probe_resp_ie); + hapd->wps_probe_resp_ie = NULL; + hapd->wps_probe_resp_ie_len = 0; + hostapd_set_wps_probe_resp_ie(hapd, NULL, 0); +} + + +int hostapd_init_wps(struct hostapd_data *hapd, + struct hostapd_bss_config *conf) +{ + struct wps_context *wps; + struct wps_registrar_config cfg; + + if (conf->wps_state == 0) { + hostapd_wps_clear_ies(hapd); + return 0; + } + + wps = os_zalloc(sizeof(*wps)); + if (wps == NULL) + return -1; + + wps->cred_cb = hostapd_wps_cred_cb; + wps->event_cb = hostapd_wps_event_cb; + wps->cb_ctx = hapd; + + os_memset(&cfg, 0, sizeof(cfg)); + wps->wps_state = hapd->conf->wps_state; + wps->ap_setup_locked = hapd->conf->ap_setup_locked; + if (is_nil_uuid(hapd->conf->uuid)) { + uuid_gen_mac_addr(hapd->own_addr, wps->uuid); + wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address", + wps->uuid, UUID_LEN); + } else + os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN); + wps->ssid_len = hapd->conf->ssid.ssid_len; + os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len); + wps->ap = 1; + os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN); + wps->dev.device_name = hapd->conf->device_name ? + os_strdup(hapd->conf->device_name) : NULL; + wps->dev.manufacturer = hapd->conf->manufacturer ? + os_strdup(hapd->conf->manufacturer) : NULL; + wps->dev.model_name = hapd->conf->model_name ? + os_strdup(hapd->conf->model_name) : NULL; + wps->dev.model_number = hapd->conf->model_number ? + os_strdup(hapd->conf->model_number) : NULL; + wps->dev.serial_number = hapd->conf->serial_number ? + os_strdup(hapd->conf->serial_number) : NULL; + if (hapd->conf->config_methods) { + char *m = hapd->conf->config_methods; + if (os_strstr(m, "label")) + wps->config_methods |= WPS_CONFIG_LABEL; + if (os_strstr(m, "display")) + wps->config_methods |= WPS_CONFIG_DISPLAY; + if (os_strstr(m, "push_button")) + wps->config_methods |= WPS_CONFIG_PUSHBUTTON; + if (os_strstr(m, "keypad")) + wps->config_methods |= WPS_CONFIG_KEYPAD; + } + if (hapd->conf->device_type) { + char *pos; + u8 oui[4]; + /* <categ>-<OUI>-<subcateg> */ + wps->dev.categ = atoi(hapd->conf->device_type); + pos = os_strchr(hapd->conf->device_type, '-'); + if (pos == NULL) { + wpa_printf(MSG_ERROR, "WPS: Invalid device_type"); + os_free(wps); + return -1; + } + pos++; + if (hexstr2bin(pos, oui, 4)) { + wpa_printf(MSG_ERROR, "WPS: Invalid device_type OUI"); + os_free(wps); + return -1; + } + wps->dev.oui = WPA_GET_BE32(oui); + pos = os_strchr(pos, '-'); + if (pos == NULL) { + wpa_printf(MSG_ERROR, "WPS: Invalid device_type"); + os_free(wps); + return -1; + } + pos++; + wps->dev.sub_categ = atoi(pos); + } + wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version); + wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? + WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ + + if (conf->wpa & WPA_PROTO_RSN) { + if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) + wps->auth_types |= WPS_AUTH_WPA2PSK; + if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) + wps->auth_types |= WPS_AUTH_WPA2; + + if (conf->rsn_pairwise & WPA_CIPHER_CCMP) + wps->encr_types |= WPS_ENCR_AES; + if (conf->rsn_pairwise & WPA_CIPHER_TKIP) + wps->encr_types |= WPS_ENCR_TKIP; + } + + if (conf->wpa & WPA_PROTO_WPA) { + if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) + wps->auth_types |= WPS_AUTH_WPAPSK; + if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) + wps->auth_types |= WPS_AUTH_WPA; + + if (conf->wpa_pairwise & WPA_CIPHER_CCMP) + wps->encr_types |= WPS_ENCR_AES; + if (conf->wpa_pairwise & WPA_CIPHER_TKIP) + wps->encr_types |= WPS_ENCR_TKIP; + } + + if (conf->ssid.security_policy == SECURITY_PLAINTEXT) { + wps->encr_types |= WPS_ENCR_NONE; + wps->auth_types |= WPS_AUTH_OPEN; + } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) { + wps->encr_types |= WPS_ENCR_WEP; + if (conf->auth_algs & WPA_AUTH_ALG_OPEN) + wps->auth_types |= WPS_AUTH_OPEN; + if (conf->auth_algs & WPA_AUTH_ALG_SHARED) + wps->auth_types |= WPS_AUTH_SHARED; + } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) { + wps->auth_types |= WPS_AUTH_OPEN; + if (conf->default_wep_key_len) + wps->encr_types |= WPS_ENCR_WEP; + else + wps->encr_types |= WPS_ENCR_NONE; + } + + if (conf->ssid.wpa_psk_file) { + /* Use per-device PSKs */ + } else if (conf->ssid.wpa_passphrase) { + wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); + wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); + } else if (conf->ssid.wpa_psk) { + wps->network_key = os_malloc(2 * PMK_LEN + 1); + if (wps->network_key == NULL) { + os_free(wps); + return -1; + } + wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, + conf->ssid.wpa_psk->psk, PMK_LEN); + wps->network_key_len = 2 * PMK_LEN; + } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { + wps->network_key = os_malloc(conf->ssid.wep.len[0]); + if (wps->network_key == NULL) { + os_free(wps); + return -1; + } + os_memcpy(wps->network_key, conf->ssid.wep.key[0], + conf->ssid.wep.len[0]); + wps->network_key_len = conf->ssid.wep.len[0]; + } + + if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) { + /* Override parameters to enable security by default */ + wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; + wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; + } + + wps->ap_settings = conf->ap_settings; + wps->ap_settings_len = conf->ap_settings_len; + + cfg.new_psk_cb = hostapd_wps_new_psk_cb; + cfg.set_ie_cb = hostapd_wps_set_ie_cb; + cfg.pin_needed_cb = hostapd_wps_pin_needed_cb; + cfg.reg_success_cb = hostapd_wps_reg_success_cb; + cfg.cb_ctx = hapd; + cfg.skip_cred_build = conf->skip_cred_build; + cfg.extra_cred = conf->extra_cred; + cfg.extra_cred_len = conf->extra_cred_len; + cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) && + conf->skip_cred_build; + + wps->registrar = wps_registrar_init(wps, &cfg); + if (wps->registrar == NULL) { + printf("Failed to initialize WPS Registrar\n"); + os_free(wps->network_key); + os_free(wps); + return -1; + } + +#ifdef CONFIG_WPS_UPNP + wps->friendly_name = hapd->conf->friendly_name; + wps->manufacturer_url = hapd->conf->manufacturer_url; + wps->model_description = hapd->conf->model_description; + wps->model_url = hapd->conf->model_url; + wps->upc = hapd->conf->upc; + + if (hostapd_wps_upnp_init(hapd, wps) < 0) { + wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP"); + wps_registrar_deinit(wps->registrar); + os_free(wps->network_key); + os_free(wps); + return -1; + } +#endif /* CONFIG_WPS_UPNP */ + + hapd->wps = wps; + + return 0; +} + + +void hostapd_deinit_wps(struct hostapd_data *hapd) +{ + if (hapd->wps == NULL) + return; +#ifdef CONFIG_WPS_UPNP + hostapd_wps_upnp_deinit(hapd); +#endif /* CONFIG_WPS_UPNP */ + wps_registrar_deinit(hapd->wps->registrar); + os_free(hapd->wps->network_key); + wps_device_data_free(&hapd->wps->dev); + wps_free_pending_msgs(hapd->wps->upnp_msgs); + os_free(hapd->wps); + hapd->wps = NULL; + hostapd_wps_clear_ies(hapd); +} + + +int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid, + const char *pin) +{ + u8 u[UUID_LEN]; + int any = 0; + + if (hapd->wps == NULL) + return -1; + if (os_strcmp(uuid, "any") == 0) + any = 1; + else if (uuid_str2bin(uuid, u)) + return -1; + return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u, + (const u8 *) pin, os_strlen(pin)); +} + + +int hostapd_wps_button_pushed(struct hostapd_data *hapd) +{ + if (hapd->wps == NULL) + return -1; + return wps_registrar_button_pushed(hapd->wps->registrar); +} + + +void hostapd_wps_probe_req_rx(struct hostapd_data *hapd, const u8 *addr, + const u8 *ie, size_t ie_len) +{ + struct wpabuf *wps_ie; + const u8 *end, *pos, *wps; + + if (hapd->wps == NULL) + return; + + pos = ie; + end = ie + ie_len; + wps = NULL; + + while (pos + 1 < end) { + if (pos + 2 + pos[1] > end) + return; + if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && + WPA_GET_BE32(&pos[2]) == WPS_DEV_OUI_WFA) { + wps = pos; + break; + } + pos += 2 + pos[1]; + } + + if (wps == NULL) + return; /* No WPS IE in Probe Request */ + + wps_ie = wpabuf_alloc(ie_len); + if (wps_ie == NULL) + return; + + /* There may be multiple WPS IEs in the message, so need to concatenate + * their WPS Data fields */ + while (pos + 1 < end) { + if (pos + 2 + pos[1] > end) + break; + if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && + WPA_GET_BE32(&pos[2]) == WPS_DEV_OUI_WFA) + wpabuf_put_data(wps_ie, pos + 6, pos[1] - 4); + pos += 2 + pos[1]; + } + + if (wpabuf_len(wps_ie) > 0) { + wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie); +#ifdef CONFIG_WPS_UPNP + /* FIX: what exactly should be included in the WLANEvent? + * WPS attributes? Full ProbeReq frame? */ + upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr, + UPNP_WPS_WLANEVENT_TYPE_PROBE, + wps_ie); +#endif /* CONFIG_WPS_UPNP */ + } + + wpabuf_free(wps_ie); +} + + +#ifdef CONFIG_WPS_UPNP + +static struct wpabuf * +hostapd_rx_req_get_device_info(void *priv, struct upnp_wps_peer *peer) +{ + struct hostapd_data *hapd = priv; + struct wps_config cfg; + struct wps_data *wps; + enum wsc_op_code op_code; + struct wpabuf *m1; + + /* + * Request for DeviceInfo, i.e., M1 TLVs. This is a start of WPS + * registration over UPnP with the AP acting as an Enrollee. It should + * be noted that this is frequently used just to get the device data, + * i.e., there may not be any intent to actually complete the + * registration. + */ + + if (peer->wps) + wps_deinit(peer->wps); + + os_memset(&cfg, 0, sizeof(cfg)); + cfg.wps = hapd->wps; + cfg.pin = (u8 *) hapd->conf->ap_pin; + cfg.pin_len = os_strlen(hapd->conf->ap_pin); + wps = wps_init(&cfg); + if (wps == NULL) + return NULL; + + m1 = wps_get_msg(wps, &op_code); + if (m1 == NULL) { + wps_deinit(wps); + return NULL; + } + + peer->wps = wps; + + return m1; +} + + +static struct wpabuf * +hostapd_rx_req_put_message(void *priv, struct upnp_wps_peer *peer, + const struct wpabuf *msg) +{ + enum wps_process_res res; + enum wsc_op_code op_code; + + /* PutMessage: msg = InMessage, return OutMessage */ + res = wps_process_msg(peer->wps, WSC_UPnP, msg); + if (res == WPS_FAILURE) + return NULL; + return wps_get_msg(peer->wps, &op_code); +} + + +static struct wpabuf * +hostapd_rx_req_get_ap_settings(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return NULL; +} + + +static int hostapd_rx_req_set_ap_settings(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_del_ap_settings(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static struct wpabuf * +hostapd_rx_req_get_sta_settings(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return NULL; +} + + +static int hostapd_rx_req_set_sta_settings(void *priv, + const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_del_sta_settings(void *priv, + const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_put_wlan_response( + void *priv, enum upnp_wps_wlanevent_type ev_type, + const u8 *mac_addr, const struct wpabuf *msg, + enum wps_msg_type msg_type) +{ + struct hostapd_data *hapd = priv; + struct sta_info *sta; + struct upnp_pending_message *p; + + wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr=" + MACSTR, ev_type, MAC2STR(mac_addr)); + wpa_hexdump_ascii(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage", + wpabuf_head(msg), wpabuf_len(msg)); + if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) { + wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected " + "PutWLANResponse WLANEventType %d", ev_type); + return -1; + } + + /* + * EAP response to ongoing to WPS Registration. Send it to EAP-WSC + * server implementation for delivery to the peer. + */ + + sta = ap_get_sta(hapd, mac_addr); + if (!sta) { + /* + * Workaround - Intel wsccmd uses bogus NewWLANEventMAC: + * Pick STA that is in an ongoing WPS registration without + * checking the MAC address. + */ + wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based " + "on NewWLANEventMAC; try wildcard match"); + for (sta = hapd->sta_list; sta; sta = sta->next) { + if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS)) + break; + } + } + + if (!sta) { + wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found"); + return 0; + } + + p = os_zalloc(sizeof(*p)); + if (p == NULL) + return -1; + os_memcpy(p->addr, sta->addr, ETH_ALEN); + p->msg = wpabuf_dup(msg); + p->type = msg_type; + p->next = hapd->wps->upnp_msgs; + hapd->wps->upnp_msgs = p; + + return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap); +} + + +static int hostapd_rx_req_set_selected_registrar(void *priv, + const struct wpabuf *msg) +{ + struct hostapd_data *hapd = priv; + return wps_registrar_set_selected_registrar(hapd->wps->registrar, msg); +} + + +static int hostapd_rx_req_reboot_ap(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_reset_ap(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_reboot_sta(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_rx_req_reset_sta(void *priv, const struct wpabuf *msg) +{ + wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__); + return -1; +} + + +static int hostapd_wps_upnp_init(struct hostapd_data *hapd, + struct wps_context *wps) +{ + struct upnp_wps_device_ctx *ctx; + + if (!hapd->conf->upnp_iface) + return 0; + ctx = os_zalloc(sizeof(*ctx)); + if (ctx == NULL) + return -1; + + ctx->rx_req_get_device_info = hostapd_rx_req_get_device_info; + ctx->rx_req_put_message = hostapd_rx_req_put_message; + ctx->rx_req_get_ap_settings = hostapd_rx_req_get_ap_settings; + ctx->rx_req_set_ap_settings = hostapd_rx_req_set_ap_settings; + ctx->rx_req_del_ap_settings = hostapd_rx_req_del_ap_settings; + ctx->rx_req_get_sta_settings = hostapd_rx_req_get_sta_settings; + ctx->rx_req_set_sta_settings = hostapd_rx_req_set_sta_settings; + ctx->rx_req_del_sta_settings = hostapd_rx_req_del_sta_settings; + ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response; + ctx->rx_req_set_selected_registrar = + hostapd_rx_req_set_selected_registrar; + ctx->rx_req_reboot_ap = hostapd_rx_req_reboot_ap; + ctx->rx_req_reset_ap = hostapd_rx_req_reset_ap; + ctx->rx_req_reboot_sta = hostapd_rx_req_reboot_sta; + ctx->rx_req_reset_sta = hostapd_rx_req_reset_sta; + + hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd); + if (hapd->wps_upnp == NULL) { + os_free(ctx); + return -1; + } + wps->wps_upnp = hapd->wps_upnp; + + if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) { + upnp_wps_device_deinit(hapd->wps_upnp); + hapd->wps_upnp = NULL; + return -1; + } + + return 0; +} + + +static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd) +{ + upnp_wps_device_deinit(hapd->wps_upnp); +} + +#endif /* CONFIG_WPS_UPNP */ |