/*
* hostapd / WPS integration
* Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/uuid.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 "wps/wps_attr_parse.h"
#include "hostapd.h"
#include "ap_config.h"
#include "ap_drv_ops.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 *da,
const u8 *bssid,
const u8 *ie, size_t ie_len,
int ssi_signal);
static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
struct wps_for_each_data {
int (*func)(struct hostapd_data *h, void *ctx);
void *ctx;
struct hostapd_data *calling_hapd;
};
static int wps_for_each(struct hostapd_iface *iface, void *ctx)
{
struct wps_for_each_data *data = ctx;
size_t j;
if (iface == NULL)
return 0;
for (j = 0; j < iface->num_bss; j++) {
struct hostapd_data *hapd = iface->bss[j];
int ret;
if (hapd != data->calling_hapd &&
(hapd->conf->wps_independent ||
data->calling_hapd->conf->wps_independent))
continue;
ret = data->func(hapd, data->ctx);
if (ret)
return ret;
}
return 0;
}
static int hostapd_wps_for_each(struct hostapd_data *hapd,
int (*func)(struct hostapd_data *h, void *ctx),
void *ctx)
{
struct hostapd_iface *iface = hapd->iface;
struct wps_for_each_data data;
data.func = func;
data.ctx = ctx;
data.calling_hapd = hapd;
if (iface->interfaces == NULL ||
iface->interfaces->for_each_interface == NULL)
return wps_for_each(iface, &data);
return iface->interfaces->for_each_interface(iface->interfaces,
wps_for_each, &data);
}
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;
if (hapd->beacon_set_done)
ieee802_11_set_beacon(hapd);
return hostapd_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);
}
}
struct wps_stop_reg_data {
struct hostapd_data *current_hapd;
const u8 *uuid_e;
const u8 *dev_pw;
size_t dev_pw_len;
};
static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
{
struct wps_stop_reg_data *data = ctx;
if (hapd != data->current_hapd && hapd->wps != NULL)
wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
data->dev_pw, data->dev_pw_len);
return 0;
}
static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
const u8 *uuid_e, const u8 *dev_pw,
size_t dev_pw_len)
{
struct hostapd_data *hapd = ctx;
char uuid[40];
struct wps_stop_reg_data data;
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);
data.current_hapd = hapd;
data.uuid_e = uuid_e;
data.dev_pw = dev_pw;
data.dev_pw_len = dev_pw_len;
hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
}
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->interfaces == NULL ||
iface->interfaces->reload_config(iface) < 0) {
wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
"configuration");
}
}
static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
size_t attr_len)
{
size_t blen = attr_len * 2 + 1;
char *buf = os_malloc(blen);
if (buf) {
wpa_snprintf_hex(buf, blen, attr, attr_len);
wpa_msg(hapd->msg_ctx, MSG_INFO,
WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
os_free(buf);
}
}
static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
const struct wps_credential *cred)
{
struct hostapd_bss_config *bss = hapd->conf;
wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
bss->wps_state = 2;
if (cred->ssid_len <= HOSTAPD_MAX_SSID_LEN) {
os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
bss->ssid.ssid_len = cred->ssid_len;
bss->ssid.ssid_set = 1;
}
if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
(cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
bss->wpa = 3;
else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
bss->wpa = 2;
else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
bss->wpa = 1;
else
bss->wpa = 0;
if (bss->wpa) {
if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
bss->wpa_pairwise = 0;
if (cred->encr_type & WPS_ENCR_AES)
bss->wpa_pairwise |= WPA_CIPHER_CCMP;
if (cred->encr_type & WPS_ENCR_TKIP)
bss->wpa_pairwise |= WPA_CIPHER_TKIP;
bss->rsn_pairwise = bss->wpa_pairwise;
bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
bss->wpa_pairwise,
bss->rsn_pairwise);
if (cred->key_len >= 8 && cred->key_len < 64) {
os_free(bss->ssid.wpa_passphrase);
bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
if (bss->ssid.wpa_passphrase)
os_memcpy(bss->ssid.wpa_passphrase, cred->key,
cred->key_len);
os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk = NULL;
} else if (cred->key_len == 64) {
os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk =
os_zalloc(sizeof(struct hostapd_wpa_psk));
if (bss->ssid.wpa_psk &&
hexstr2bin((const char *) cred->key,
bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
bss->ssid.wpa_psk->group = 1;
os_free(bss->ssid.wpa_passphrase);
bss->ssid.wpa_passphrase = NULL;
}
}
bss->auth_algs = 1;
} else {
if ((cred->auth_type & WPS_AUTH_OPEN) &&
(cred->auth_type & WPS_AUTH_SHARED))
bss->auth_algs = 3;
else if (cred->auth_type & WPS_AUTH_SHARED)
bss->auth_algs = 2;
else
bss->auth_algs = 1;
if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx > 0 &&
cred->key_idx <= 4) {
struct hostapd_wep_keys *wep = &bss->ssid.wep;
int idx = cred->key_idx;
if (idx)
idx--;
wep->idx = idx;
if (cred->key_len == 10 || cred->key_len == 26) {
os_free(wep->key[idx]);
wep->key[idx] = os_malloc(cred->key_len / 2);
if (wep->key[idx] == NULL ||
hexstr2bin((const char *) cred->key,
wep->key[idx],
cred->key_len / 2))
return -1;
wep->len[idx] = cred->key_len / 2;
} else {
os_free(wep->key[idx]);
wep->key[idx] = os_malloc(cred->key_len);
if (wep->key[idx] == NULL)
return -1;
os_memcpy(wep->key[idx], cred->key,
cred->key_len);
wep->len[idx] = cred->key_len;
}
wep->keys_set = 1;
}
}
/* 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);
return 0;
}
static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
{
const struct wps_credential *cred = ctx;
FILE *oconf, *nconf;
size_t len, i;
char *tmp_fname;
char buf[1024];
int multi_bss;
int wpa;
if (hapd->wps == NULL)
return 0;
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) {
hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
} else if (hapd->conf->wps_cred_processing == 1 ||
hapd->conf->wps_cred_processing == 2) {
struct wpabuf *attr;
attr = wpabuf_alloc(200);
if (attr && wps_build_credential_wrap(attr, cred) == 0)
hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
wpabuf_len(attr));
wpabuf_free(attr);
} 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;
if (hapd->iface->config_fname == NULL)
return hapd_wps_reconfig_in_memory(hapd, cred);
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");
if (is_hex(cred->ssid, cred->ssid_len)) {
fprintf(nconf, "ssid2=");
for (i = 0; i < cred->ssid_len; i++)
fprintf(nconf, "%02x", cred->ssid[i]);
fprintf(nconf, "\n");
} else {
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, "ssid2=") ||
str_starts(buf, "auth_algs=") ||
str_starts(buf, "wep_default_key=") ||
str_starts(buf, "wep_key") ||
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);
wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
return 0;
}
static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
{
struct hostapd_data *hapd = ctx;
return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
}
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;
if (hapd->ap_pin_failures_consecutive >= 10)
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 int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
{
struct wps_event_pwd_auth_fail *data = ctx;
if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
return 0;
/*
* 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++;
hapd->ap_pin_failures_consecutive++;
wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
"(%u consecutive)",
hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
if (hapd->ap_pin_failures < 3)
return 0;
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 &&
hapd->ap_pin_failures_consecutive >= 10) {
/*
* In indefinite lockdown - disable automatic AP PIN
* reenablement.
*/
eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
} else 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);
}
return 0;
}
static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
struct wps_event_pwd_auth_fail *data)
{
hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
}
static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
{
if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
return 0;
if (hapd->ap_pin_failures_consecutive == 0)
return 0;
wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
"- total validation failures %u (%u consecutive)",
hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
hapd->ap_pin_failures_consecutive = 0;
return 0;
}
static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
{
hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
}
static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
"No Error", /* WPS_EI_NO_ERROR */
"TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
"WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
};
static void hostapd_wps_event_fail(struct hostapd_data *hapd,
struct wps_event_fail *fail)
{
if (fail->error_indication > 0 &&
fail->error_indication < NUM_WPS_EI_VALUES) {
wpa_msg(hapd->msg_ctx, MSG_INFO,
WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
fail->msg, fail->config_error, fail->error_indication,
wps_event_fail_reason[fail->error_indication]);
} else {
wpa_msg(hapd->msg_ctx, MSG_INFO,
WPS_EVENT_FAIL "msg=%d config_error=%d",
fail->msg, fail->config_error);
}
}
static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
union wps_event_data *data)
{
struct hostapd_data *hapd = ctx;
switch (event) {
case WPS_EV_M2D:
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
break;
case WPS_EV_FAIL:
hostapd_wps_event_fail(hapd, &data->fail);
break;
case WPS_EV_SUCCESS:
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
break;
case WPS_EV_PWD_AUTH_FAIL:
hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
break;
case WPS_EV_PBC_OVERLAP:
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
break;
case WPS_EV_PBC_TIMEOUT:
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
break;
case WPS_EV_ER_AP_ADD:
break;
case WPS_EV_ER_AP_REMOVE:
break;
case WPS_EV_ER_ENROLLEE_ADD:
break;
case WPS_EV_ER_ENROLLEE_REMOVE:
break;
case WPS_EV_ER_AP_SETTINGS:
break;
case WPS_EV_ER_SET_SELECTED_REGISTRAR:
break;
case WPS_EV_AP_PIN_SUCCESS:
hostapd_wps_ap_pin_success(hapd);
break;
}
if (hapd->wps_event_cb)
hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
}
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;
hostapd_set_ap_wps_ie(hapd);
}
static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
{
const u8 **uuid = ctx;
size_t j;
if (iface == NULL)
return 0;
for (j = 0; j < iface->num_bss; j++) {
struct hostapd_data *hapd = iface->bss[j];
if (hapd->wps && !hapd->conf->wps_independent &&
!is_nil_uuid(hapd->wps->uuid)) {
*uuid = hapd->wps->uuid;
return 1;
}
}
return 0;
}
static const u8 * get_own_uuid(struct hostapd_iface *iface)
{
const u8 *uuid;
if (iface->interfaces == NULL ||
iface->interfaces->for_each_interface == NULL)
return NULL;
uuid = NULL;
iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
&uuid);
return uuid;
}
static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
{
int *count= ctx;
(*count)++;
return 0;
}
static int interface_count(struct hostapd_iface *iface)
{
int count = 0;
if (iface->interfaces == NULL ||
iface->interfaces->for_each_interface == NULL)
return 0;
iface->interfaces->for_each_interface(iface->interfaces,
count_interface_cb, &count);
return count;
}
static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
struct wps_context *wps)
{
int i;
for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
wpabuf_free(wps->dev.vendor_ext[i]);
wps->dev.vendor_ext[i] = NULL;
if (hapd->conf->wps_vendor_ext[i] == NULL)
continue;
wps->dev.vendor_ext[i] =
wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
if (wps->dev.vendor_ext[i] == NULL) {
while (--i >= 0)
wpabuf_free(wps->dev.vendor_ext[i]);
return -1;
}
}
return 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)) {
const u8 *uuid;
uuid = get_own_uuid(hapd->iface);
if (uuid && !conf->wps_independent) {
os_memcpy(wps->uuid, uuid, UUID_LEN);
wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
"interface", wps->uuid, UUID_LEN);
} else {
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);
wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
wps->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);
#ifdef CONFIG_WPS2
if ((wps->config_methods &
(WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
wpa_printf(MSG_INFO, "WPS: Converting display to "
"virtual_display for WPS 2.0 compliance");
wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
}
if ((wps->config_methods &
(WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
wpa_printf(MSG_INFO, "WPS: Converting push_button to "
"virtual_push_button for WPS 2.0 compliance");
wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
}
#endif /* CONFIG_WPS2 */
os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
WPS_DEV_TYPE_LEN);
if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
os_free(wps);
return -1;
}
wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
if (conf->wps_rf_bands) {
wps->dev.rf_bands = conf->wps_rf_bands;
} else {
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;
cfg.dualband = interface_count(hapd->iface) > 1;
if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
(WPS_RF_50GHZ | WPS_RF_24GHZ))
cfg.dualband = 1;
if (cfg.dualband)
wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
wps->registrar = wps_registrar_init(wps, &cfg);
if (wps->registrar == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
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;
#endif /* CONFIG_WPS_UPNP */
hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
hapd->wps = wps;
return 0;
}
int hostapd_init_wps_complete(struct hostapd_data *hapd)
{
struct wps_context *wps = hapd->wps;
if (wps == NULL)
return 0;
#ifdef CONFIG_WPS_UPNP
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);
hapd->wps = NULL;
return -1;
}
#endif /* CONFIG_WPS_UPNP */
return 0;
}
static void hostapd_wps_nfc_clear(struct wps_context *wps)
{
#ifdef CONFIG_WPS_NFC
wps->ap_nfc_dev_pw_id = 0;
wpabuf_free(wps->ap_nfc_dh_pubkey);
wps->ap_nfc_dh_pubkey = NULL;
wpabuf_free(wps->ap_nfc_dh_privkey);
wps->ap_nfc_dh_privkey = NULL;
wpabuf_free(wps->ap_nfc_dev_pw);
wps->ap_nfc_dev_pw = NULL;
#endif /* CONFIG_WPS_NFC */
}
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);
wps_free_pending_msgs(hapd->wps->upnp_msgs);
hostapd_wps_nfc_clear(hapd->wps);
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;
#ifdef CONFIG_WPS_UPNP
hapd->wps->friendly_name = hapd->conf->friendly_name;
hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
hapd->wps->model_description = hapd->conf->model_description;
hapd->wps->model_url = hapd->conf->model_url;
hapd->wps->upc = hapd->conf->upc;
#endif /* CONFIG_WPS_UPNP */
hostapd_wps_set_vendor_ext(hapd, hapd->wps);
if (hapd->conf->wps_state)
wps_registrar_update_ie(hapd->wps->registrar);
else
hostapd_deinit_wps(hapd);
}
struct wps_add_pin_data {
const u8 *addr;
const u8 *uuid;
const u8 *pin;
size_t pin_len;
int timeout;
int added;
};
static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
{
struct wps_add_pin_data *data = ctx;
int ret;
if (hapd->wps == NULL)
return 0;
ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
data->uuid, data->pin, data->pin_len,
data->timeout);
if (ret == 0)
data->added++;
return ret;
}
int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
const char *uuid, const char *pin, int timeout)
{
u8 u[UUID_LEN];
struct wps_add_pin_data data;
data.addr = addr;
data.uuid = u;
data.pin = (const u8 *) pin;
data.pin_len = os_strlen(pin);
data.timeout = timeout;
data.added = 0;
if (os_strcmp(uuid, "any") == 0)
data.uuid = NULL;
else {
if (uuid_str2bin(uuid, u))
return -1;
data.uuid = u;
}
if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
return -1;
return data.added ? 0 : -1;
}
static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
{
const u8 *p2p_dev_addr = ctx;
if (hapd->wps == NULL)
return 0;
return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
}
int hostapd_wps_button_pushed(struct hostapd_data *hapd,
const u8 *p2p_dev_addr)
{
return hostapd_wps_for_each(hapd, wps_button_pushed,
(void *) p2p_dev_addr);
}
static int wps_cancel(struct hostapd_data *hapd, void *ctx)
{
if (hapd->wps == NULL)
return 0;
wps_registrar_wps_cancel(hapd->wps->registrar);
ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
return 0;
}
int hostapd_wps_cancel(struct hostapd_data *hapd)
{
return hostapd_wps_for_each(hapd, wps_cancel, NULL);
}
static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
const u8 *bssid,
const u8 *ie, size_t ie_len,
int ssi_signal)
{
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 (wps_validate_probe_req(wps_ie, addr) < 0) {
wpabuf_free(wps_ie);
return 0;
}
if (wpabuf_len(wps_ie) > 0) {
int p2p_wildcard = 0;
#ifdef CONFIG_P2P
if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
P2P_WILDCARD_SSID_LEN) == 0)
p2p_wildcard = 1;
#endif /* CONFIG_P2P */
wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
p2p_wildcard);
#ifdef CONFIG_WPS_UPNP
/* FIX: what exactly should be included in the WLANEvent?
* WPS attributes? Full ProbeReq frame? */
if (!p2p_wildcard)
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);
#ifndef CONFIG_WPS_STRICT
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;
}
}
#endif /* CONFIG_WPS_STRICT */
if (!sta || !(sta->flags & WLAN_STA_WPS)) {
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,
hapd->conf->upnp_iface);
if (hapd->wps_upnp == NULL)
return -1;
wps->wps_upnp = hapd->wps_upnp;
return 0;
}
static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
{
upnp_wps_device_deinit(hapd->wps_upnp, hapd);
}
#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);
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
}
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->ap_pin_failures_consecutive = 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);
}
static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
{
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);
return 0;
}
void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
{
wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
}
struct wps_ap_pin_data {
char pin_txt[9];
int timeout;
};
static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
{
struct wps_ap_pin_data *data = ctx;
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = os_strdup(data->pin_txt);
#ifdef CONFIG_WPS_UPNP
upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
#endif /* CONFIG_WPS_UPNP */
hostapd_wps_ap_pin_enable(hapd, data->timeout);
return 0;
}
const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
{
unsigned int pin;
struct wps_ap_pin_data data;
pin = wps_generate_pin();
os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
data.timeout = timeout;
hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
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)
{
struct wps_ap_pin_data data;
int ret;
ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
return -1;
data.timeout = timeout;
return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
}
static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
{
if (hapd->wps)
wps_registrar_update_ie(hapd->wps->registrar);
return 0;
}
void hostapd_wps_update_ie(struct hostapd_data *hapd)
{
hostapd_wps_for_each(hapd, wps_update_ie, NULL);
}
int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
const char *auth, const char *encr, const char *key)
{
struct wps_credential cred;
size_t len;
os_memset(&cred, 0, sizeof(cred));
len = os_strlen(ssid);
if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
hexstr2bin(ssid, cred.ssid, len / 2))
return -1;
cred.ssid_len = len / 2;
if (os_strncmp(auth, "OPEN", 4) == 0)
cred.auth_type = WPS_AUTH_OPEN;
else if (os_strncmp(auth, "WPAPSK", 6) == 0)
cred.auth_type = WPS_AUTH_WPAPSK;
else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
cred.auth_type = WPS_AUTH_WPA2PSK;
else
return -1;
if (encr) {
if (os_strncmp(encr, "NONE", 4) == 0)
cred.encr_type = WPS_ENCR_NONE;
else if (os_strncmp(encr, "WEP", 3) == 0)
cred.encr_type = WPS_ENCR_WEP;
else if (os_strncmp(encr, "TKIP", 4) == 0)
cred.encr_type = WPS_ENCR_TKIP;
else if (os_strncmp(encr, "CCMP", 4) == 0)
cred.encr_type = WPS_ENCR_AES;
else
return -1;
} else
cred.encr_type = WPS_ENCR_NONE;
if (key) {
len = os_strlen(key);
if ((len & 1) || len > 2 * sizeof(cred.key) ||
hexstr2bin(key, cred.key, len / 2))
return -1;
cred.key_len = len / 2;
}
return wps_registrar_config_ap(hapd->wps->registrar, &cred);
}
#ifdef CONFIG_WPS_NFC
struct wps_nfc_password_token_data {
const u8 *oob_dev_pw;
size_t oob_dev_pw_len;
int added;
};
static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
{
struct wps_nfc_password_token_data *data = ctx;
int ret;
if (hapd->wps == NULL)
return 0;
ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
data->oob_dev_pw,
data->oob_dev_pw_len);
if (ret == 0)
data->added++;
return ret;
}
static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
struct wps_parse_attr *attr)
{
struct wps_nfc_password_token_data data;
data.oob_dev_pw = attr->oob_dev_password;
data.oob_dev_pw_len = attr->oob_dev_password_len;
data.added = 0;
if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
return -1;
return data.added ? 0 : -1;
}
static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
const struct wpabuf *wps)
{
struct wps_parse_attr attr;
wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
if (wps_parse_msg(wps, &attr)) {
wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
return -1;
}
if (attr.oob_dev_password)
return hostapd_wps_add_nfc_password_token(hapd, &attr);
wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
return -1;
}
int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
const struct wpabuf *data)
{
const struct wpabuf *wps = data;
struct wpabuf *tmp = NULL;
int ret;
if (wpabuf_len(data) < 4)
return -1;
if (*wpabuf_head_u8(data) != 0x10) {
/* Assume this contains full NDEF record */
tmp = ndef_parse_wifi(data);
if (tmp == NULL) {
wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
return -1;
}
wps = tmp;
}
ret = hostapd_wps_nfc_tag_process(hapd, wps);
wpabuf_free(tmp);
return ret;
}
struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
int ndef)
{
struct wpabuf *ret;
if (hapd->wps == NULL)
return NULL;
ret = wps_get_oob_cred(hapd->wps);
if (ndef && ret) {
struct wpabuf *tmp;
tmp = ndef_build_wifi(ret);
wpabuf_free(ret);
if (tmp == NULL)
return NULL;
ret = tmp;
}
return ret;
}
struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
{
/*
* Handover Select carrier record for WPS uses the same format as
* configuration token.
*/
return hostapd_wps_nfc_config_token(hapd, ndef);
}
struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
{
if (hapd->conf->wps_nfc_pw_from_config) {
return wps_nfc_token_build(ndef,
hapd->conf->wps_nfc_dev_pw_id,
hapd->conf->wps_nfc_dh_pubkey,
hapd->conf->wps_nfc_dev_pw);
}
return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
&hapd->conf->wps_nfc_dh_pubkey,
&hapd->conf->wps_nfc_dh_privkey,
&hapd->conf->wps_nfc_dev_pw);
}
int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
{
struct wps_context *wps = hapd->wps;
struct wpabuf *pw;
if (wps == NULL)
return -1;
if (!hapd->conf->wps_nfc_dh_pubkey ||
!hapd->conf->wps_nfc_dh_privkey ||
!hapd->conf->wps_nfc_dev_pw ||
!hapd->conf->wps_nfc_dev_pw_id)
return -1;
hostapd_wps_nfc_clear(wps);
wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
pw = hapd->conf->wps_nfc_dev_pw;
wps->ap_nfc_dev_pw = wpabuf_alloc(
wpabuf_len(pw) * 2 + 1);
if (wps->ap_nfc_dev_pw) {
wpa_snprintf_hex_uppercase(
(char *) wpabuf_put(wps->ap_nfc_dev_pw,
wpabuf_len(pw) * 2),
wpabuf_len(pw) * 2 + 1,
wpabuf_head(pw), wpabuf_len(pw));
}
if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
!wps->ap_nfc_dev_pw) {
hostapd_wps_nfc_clear(wps);
return -1;
}
return 0;
}
void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
{
hostapd_wps_nfc_clear(hapd->wps);
}
#endif /* CONFIG_WPS_NFC */