| Current Path : /usr/src/contrib/wpa/src/ap/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/contrib/wpa/src/ap/wps_hostapd.c |
/*
* hostapd / WPS integration
* Copyright (c) 2008-2010, 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 "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/uuid.h"
#include "crypto/dh_groups.h"
#include "common/wpa_ctrl.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "eapol_auth/eapol_auth_sm.h"
#include "eapol_auth/eapol_auth_sm_i.h"
#include "wps/wps.h"
#include "wps/wps_defs.h"
#include "wps/wps_dev_attr.h"
#include "hostapd.h"
#include "ap_config.h"
#include "beacon.h"
#include "sta_info.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_probe_req_rx(void *ctx, const u8 *addr,
const u8 *ie, size_t ie_len);
static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
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, struct wpabuf *beacon_ie,
struct wpabuf *probe_resp_ie)
{
struct hostapd_data *hapd = ctx;
wpabuf_free(hapd->wps_beacon_ie);
hapd->wps_beacon_ie = beacon_ie;
wpabuf_free(hapd->wps_probe_resp_ie);
hapd->wps_probe_resp_ie = probe_resp_ie;
ieee802_11_set_beacon(hapd);
return hapd->drv.set_ap_wps_ie(hapd);
}
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;
char devtype[WPS_DEV_TYPE_BUFSIZE];
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|%s]",
uuid, MAC2STR(dev->mac_addr), dev->device_name,
dev->manufacturer, dev->model_name,
dev->model_number, dev->serial_number,
wps_dev_type_bin2str(dev->pri_dev_type, devtype,
sizeof(devtype)));
if (len > 0 && len < (int) sizeof(txt))
wpa_msg(hapd->msg_ctx, 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%s\n",
t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
dev->manufacturer, dev->model_name, dev->model_number,
dev->serial_number,
wps_dev_type_bin2str(dev->pri_dev_type, devtype,
sizeof(devtype)));
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_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
MAC2STR(mac_addr), uuid);
if (hapd->wps_reg_success_cb)
hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
mac_addr, uuid_e);
}
static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
const u8 *uuid_e,
const u8 *pri_dev_type,
u16 config_methods,
u16 dev_password_id, u8 request_type,
const char *dev_name)
{
struct hostapd_data *hapd = ctx;
char uuid[40];
char devtype[WPS_DEV_TYPE_BUFSIZE];
if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
return;
if (dev_name == NULL)
dev_name = "";
wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
" %s %s 0x%x %u %u [%s]",
MAC2STR(addr), uuid,
wps_dev_type_bin2str(pri_dev_type, devtype,
sizeof(devtype)),
config_methods, dev_password_id, request_type, dev_name);
}
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 (iface->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_ctx, MSG_INFO, "%s%s",
WPS_EVENT_NEW_AP_SETTINGS, _buf);
os_free(_buf);
}
} else
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
if (hapd->conf->wps_cred_processing == 1)
return 0;
os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
hapd->wps->ssid_len = cred->ssid_len;
hapd->wps->encr_types = cred->encr_type;
hapd->wps->auth_types = cred->auth_type;
if (cred->key_len == 0) {
os_free(hapd->wps->network_key);
hapd->wps->network_key = NULL;
hapd->wps->network_key_len = 0;
} else {
if (hapd->wps->network_key == NULL ||
hapd->wps->network_key_len < cred->key_len) {
hapd->wps->network_key_len = 0;
os_free(hapd->wps->network_key);
hapd->wps->network_key = os_malloc(cred->key_len);
if (hapd->wps->network_key == NULL)
return -1;
}
hapd->wps->network_key_len = cred->key_len;
os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
}
hapd->wps->wps_state = WPS_STATE_CONFIGURED;
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) {
int key_idx = cred->key_idx;
if (key_idx)
key_idx--;
fprintf(nconf, "wep_default_key=%d\n", key_idx);
fprintf(nconf, "wep_key%d=", key_idx);
if (cred->key_len == 10 || cred->key_len == 26) {
/* WEP key as a hex string */
for (i = 0; i < cred->key_len; i++)
fputc(cred->key[i], nconf);
} else {
/* Raw WEP key; convert to hex */
for (i = 0; i < cred->key_len; i++)
fprintf(nconf, "%02x", cred->key[i]);
}
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_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
{
struct hostapd_data *hapd = eloop_data;
if (hapd->conf->ap_setup_locked)
return;
wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
hapd->wps->ap_setup_locked = 0;
wps_registrar_update_ie(hapd->wps->registrar);
}
static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
struct wps_event_pwd_auth_fail *data)
{
if (!data->enrollee || hapd->conf->ap_pin == NULL)
return;
/*
* Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
* for some time if this happens multiple times to slow down brute
* force attacks.
*/
hapd->ap_pin_failures++;
wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
hapd->ap_pin_failures);
if (hapd->ap_pin_failures < 3)
return;
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
hapd->wps->ap_setup_locked = 1;
wps_registrar_update_ie(hapd->wps->registrar);
if (!hapd->conf->ap_setup_locked) {
if (hapd->ap_pin_lockout_time == 0)
hapd->ap_pin_lockout_time = 60;
else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
(hapd->ap_pin_failures % 3) == 0)
hapd->ap_pin_lockout_time *= 2;
wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
hapd->ap_pin_lockout_time);
eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
hostapd_wps_reenable_ap_pin, hapd,
NULL);
}
/* TODO: dualband AP may need to update other interfaces */
}
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)
{
wpabuf_free(hapd->wps_beacon_ie);
hapd->wps_beacon_ie = NULL;
wpabuf_free(hapd->wps_probe_resp_ie);
hapd->wps_probe_resp_ie = NULL;
hapd->drv.set_ap_wps_ie(hapd);
}
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;
wps->config_methods =
wps_config_methods_str2bin(hapd->conf->config_methods);
if (hapd->conf->device_type &&
wps_dev_type_str2bin(hapd->conf->device_type,
wps->dev.pri_dev_type) < 0) {
wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
os_free(wps);
return -1;
}
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->ssid.wpa_psk) {
os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
wps->psk_set = 1;
}
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.enrollee_seen_cb = hostapd_wps_enrollee_seen_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;
if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
cfg.static_wep_only = 1;
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 */
hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
hapd->wps = wps;
return 0;
}
void hostapd_deinit_wps(struct hostapd_data *hapd)
{
eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
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);
wpabuf_free(hapd->wps->dh_pubkey);
wpabuf_free(hapd->wps->dh_privkey);
wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
wpabuf_free(hapd->wps->oob_conf.dev_password);
wps_free_pending_msgs(hapd->wps->upnp_msgs);
os_free(hapd->wps);
hapd->wps = NULL;
hostapd_wps_clear_ies(hapd);
}
void hostapd_update_wps(struct hostapd_data *hapd)
{
if (hapd->wps == NULL)
return;
if (hapd->conf->wps_state)
wps_registrar_update_ie(hapd->wps->registrar);
else
hostapd_deinit_wps(hapd);
}
int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
const char *pin, int timeout)
{
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),
timeout);
}
int hostapd_wps_button_pushed(struct hostapd_data *hapd)
{
if (hapd->wps == NULL)
return -1;
return wps_registrar_button_pushed(hapd->wps->registrar);
}
#ifdef CONFIG_WPS_OOB
int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
char *path, char *method, char *name)
{
struct wps_context *wps = hapd->wps;
struct oob_device_data *oob_dev;
oob_dev = wps_get_oob_device(device_type);
if (oob_dev == NULL)
return -1;
oob_dev->device_path = path;
oob_dev->device_name = name;
wps->oob_conf.oob_method = wps_get_oob_method(method);
if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
/*
* Use pre-configured DH keys in order to be able to write the
* key hash into the OOB file.
*/
wpabuf_free(wps->dh_pubkey);
wpabuf_free(wps->dh_privkey);
wps->dh_privkey = NULL;
wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
&wps->dh_privkey);
wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
if (wps->dh_pubkey == NULL) {
wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
"Diffie-Hellman handshake");
return -1;
}
}
if (wps_process_oob(wps, oob_dev, 1) < 0)
goto error;
if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
hostapd_wps_add_pin(hapd, "any",
wpabuf_head(wps->oob_conf.dev_password), 0) <
0)
goto error;
return 0;
error:
wpabuf_free(wps->dh_pubkey);
wps->dh_pubkey = NULL;
wpabuf_free(wps->dh_privkey);
wps->dh_privkey = NULL;
return -1;
}
#endif /* CONFIG_WPS_OOB */
static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
const u8 *ie, size_t ie_len)
{
struct hostapd_data *hapd = ctx;
struct wpabuf *wps_ie;
struct ieee802_11_elems elems;
if (hapd->wps == NULL)
return 0;
if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
MACSTR, MAC2STR(addr));
return 0;
}
if (elems.ssid && elems.ssid_len > 0 &&
(elems.ssid_len != hapd->conf->ssid.ssid_len ||
os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
0))
return 0; /* Not for us */
wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
if (wps_ie == NULL)
return 0;
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);
return 0;
}
#ifdef CONFIG_WPS_UPNP
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(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_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_put_wlan_response = hostapd_rx_req_put_wlan_response;
if (hapd->conf->ap_pin)
ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
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 */
int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
char *buf, size_t buflen)
{
if (hapd->wps == NULL)
return 0;
return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
}
static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
{
struct hostapd_data *hapd = eloop_data;
wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
hostapd_wps_ap_pin_disable(hapd);
}
static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
{
wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
hapd->ap_pin_failures = 0;
hapd->conf->ap_setup_locked = 0;
if (hapd->wps->ap_setup_locked) {
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
hapd->wps->ap_setup_locked = 0;
wps_registrar_update_ie(hapd->wps->registrar);
}
eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
if (timeout > 0)
eloop_register_timeout(timeout, 0,
hostapd_wps_ap_pin_timeout, hapd, NULL);
}
void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
{
wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = NULL;
#ifdef CONFIG_WPS_UPNP
upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
#endif /* CONFIG_WPS_UPNP */
eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
}
const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
{
unsigned int pin;
char pin_txt[9];
pin = wps_generate_pin();
os_snprintf(pin_txt, sizeof(pin_txt), "%u", pin);
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = os_strdup(pin_txt);
#ifdef CONFIG_WPS_UPNP
upnp_wps_set_ap_pin(hapd->wps_upnp, pin_txt);
#endif /* CONFIG_WPS_UPNP */
hostapd_wps_ap_pin_enable(hapd, timeout);
return hapd->conf->ap_pin;
}
const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
{
return hapd->conf->ap_pin;
}
int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
int timeout)
{
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = os_strdup(pin);
if (hapd->conf->ap_pin == NULL)
return -1;
#ifdef CONFIG_WPS_UPNP
upnp_wps_set_ap_pin(hapd->wps_upnp, hapd->conf->ap_pin);
#endif /* CONFIG_WPS_UPNP */
hostapd_wps_ap_pin_enable(hapd, timeout);
return 0;
}