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hostapd/wpa_supplicant/wps_supplicant.c
Jouni Malinen e9a7ae41fa P2P: Use SSID from GO Negotiation to limit WPS provisioning step 
In order to avoid picking incorrect SSID from old scan results, use
SSID from GO Negotiation to select the AP.
2010-09-09 07:17:23 -07:00

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/*
* wpa_supplicant / 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 "includes.h"
#include "common.h"
#include "eloop.h"
#include "uuid.h"
#include "crypto/dh_group5.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "common/wpa_common.h"
#include "common/wpa_ctrl.h"
#include "eap_common/eap_wsc_common.h"
#include "eap_peer/eap.h"
#include "rsn_supp/wpa.h"
#include "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "notify.h"
#include "blacklist.h"
#include "bss.h"
#include "scan.h"
#include "p2p/p2p.h"
#include "p2p_supplicant.h"
#include "wps_supplicant.h"
#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
#endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
{
if (!wpa_s->wps_success &&
wpa_s->current_ssid &&
eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
const u8 *bssid = wpa_s->bssid;
if (is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
" did not succeed - continue trying to find "
"suitable AP", MAC2STR(bssid));
wpa_blacklist_add(wpa_s, bssid);
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s,
wpa_s->blacklist_cleared ? 5 : 0, 0);
wpa_s->blacklist_cleared = 0;
return 1;
}
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
!(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
"try to associate with the received credential");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
wpa_s->after_wps = 5;
wpa_s->wps_freq = wpa_s->assoc_freq;
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
return 1;
}
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
"for external credential processing");
wpas_clear_wps(wpa_s);
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return 1;
}
return 0;
}
static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
const struct wps_credential *cred)
{
struct wpa_driver_capa capa;
struct wpa_bss *bss;
const u8 *ie;
struct wpa_ie_data adv;
int wpa2 = 0, ccmp = 0;
/*
* Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
* case they are configured for mixed mode operation (WPA+WPA2 and
* TKIP+CCMP). Try to use scan results to figure out whether the AP
* actually supports stronger security and select that if the client
* has support for it, too.
*/
if (wpa_drv_get_capa(wpa_s, &capa))
return; /* Unknown what driver supports */
bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
if (bss == NULL) {
wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
"table - use credential as-is");
return;
}
wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
wpa2 = 1;
if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
ccmp = 1;
} else {
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
adv.pairwise_cipher & WPA_CIPHER_CCMP)
ccmp = 1;
}
if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
(ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
/*
* TODO: This could be the initial AP configuration and the
* Beacon contents could change shortly. Should request a new
* scan and delay addition of the network until the updated
* scan results are available.
*/
wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
"support - use credential as-is");
return;
}
if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
(ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
(capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
"based on scan results");
if (wpa_s->conf->ap_scan == 1)
ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
else
ssid->pairwise_cipher = WPA_CIPHER_CCMP;
}
if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
(ssid->proto & WPA_PROTO_WPA) &&
(capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
"based on scan results");
if (wpa_s->conf->ap_scan == 1)
ssid->proto |= WPA_PROTO_RSN;
else
ssid->proto = WPA_PROTO_RSN;
}
}
static int wpa_supplicant_wps_cred(void *ctx,
const struct wps_credential *cred)
{
struct wpa_supplicant *wpa_s = ctx;
struct wpa_ssid *ssid = wpa_s->current_ssid;
u8 key_idx = 0;
u16 auth_type;
if ((wpa_s->conf->wps_cred_processing == 1 ||
wpa_s->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(wpa_s, MSG_INFO, "%s%s",
WPS_EVENT_CRED_RECEIVED, buf);
os_free(buf);
}
wpas_notify_wps_credential(wpa_s, cred);
} else
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
cred->cred_attr, cred->cred_attr_len);
if (wpa_s->conf->wps_cred_processing == 1)
return 0;
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));
auth_type = cred->auth_type;
if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
"auth_type into WPA2PSK");
auth_type = WPS_AUTH_WPA2PSK;
}
if (auth_type != WPS_AUTH_OPEN &&
auth_type != WPS_AUTH_SHARED &&
auth_type != WPS_AUTH_WPAPSK &&
auth_type != WPS_AUTH_WPA2PSK) {
wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
"unsupported authentication type 0x%x",
auth_type);
return 0;
}
if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
"on the received credential");
os_free(ssid->eap.identity);
ssid->eap.identity = NULL;
ssid->eap.identity_len = 0;
os_free(ssid->eap.phase1);
ssid->eap.phase1 = NULL;
os_free(ssid->eap.eap_methods);
ssid->eap.eap_methods = NULL;
if (!ssid->p2p_group)
ssid->temporary = 0;
} else {
wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
"received credential");
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL)
return -1;
wpas_notify_network_added(wpa_s, ssid);
}
wpa_config_set_network_defaults(ssid);
os_free(ssid->ssid);
ssid->ssid = os_malloc(cred->ssid_len);
if (ssid->ssid) {
os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
ssid->ssid_len = cred->ssid_len;
}
switch (cred->encr_type) {
case WPS_ENCR_NONE:
break;
case WPS_ENCR_WEP:
if (cred->key_len <= 0)
break;
if (cred->key_len != 5 && cred->key_len != 13 &&
cred->key_len != 10 && cred->key_len != 26) {
wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
"%lu", (unsigned long) cred->key_len);
return -1;
}
if (cred->key_idx > NUM_WEP_KEYS) {
wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
cred->key_idx);
return -1;
}
if (cred->key_idx)
key_idx = cred->key_idx - 1;
if (cred->key_len == 10 || cred->key_len == 26) {
if (hexstr2bin((char *) cred->key,
ssid->wep_key[key_idx],
cred->key_len / 2) < 0) {
wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
"%d", key_idx);
return -1;
}
ssid->wep_key_len[key_idx] = cred->key_len / 2;
} else {
os_memcpy(ssid->wep_key[key_idx], cred->key,
cred->key_len);
ssid->wep_key_len[key_idx] = cred->key_len;
}
ssid->wep_tx_keyidx = key_idx;
break;
case WPS_ENCR_TKIP:
ssid->pairwise_cipher = WPA_CIPHER_TKIP;
break;
case WPS_ENCR_AES:
ssid->pairwise_cipher = WPA_CIPHER_CCMP;
break;
}
switch (auth_type) {
case WPS_AUTH_OPEN:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_NONE;
ssid->proto = 0;
break;
case WPS_AUTH_SHARED:
ssid->auth_alg = WPA_AUTH_ALG_SHARED;
ssid->key_mgmt = WPA_KEY_MGMT_NONE;
ssid->proto = 0;
break;
case WPS_AUTH_WPAPSK:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_PSK;
ssid->proto = WPA_PROTO_WPA;
break;
case WPS_AUTH_WPA:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
ssid->proto = WPA_PROTO_WPA;
break;
case WPS_AUTH_WPA2:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
ssid->proto = WPA_PROTO_RSN;
break;
case WPS_AUTH_WPA2PSK:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_PSK;
ssid->proto = WPA_PROTO_RSN;
break;
}
if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
if (cred->key_len == 2 * PMK_LEN) {
if (hexstr2bin((const char *) cred->key, ssid->psk,
PMK_LEN)) {
wpa_printf(MSG_ERROR, "WPS: Invalid Network "
"Key");
return -1;
}
ssid->psk_set = 1;
} else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
os_free(ssid->passphrase);
ssid->passphrase = os_malloc(cred->key_len + 1);
if (ssid->passphrase == NULL)
return -1;
os_memcpy(ssid->passphrase, cred->key, cred->key_len);
ssid->passphrase[cred->key_len] = '\0';
wpa_config_update_psk(ssid);
} else {
wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
"length %lu",
(unsigned long) cred->key_len);
return -1;
}
}
wpas_wps_security_workaround(wpa_s, ssid, cred);
#ifndef CONFIG_NO_CONFIG_WRITE
if (wpa_s->conf->update_config &&
wpa_config_write(wpa_s->confname, wpa_s->conf)) {
wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
return -1;
}
#endif /* CONFIG_NO_CONFIG_WRITE */
return 0;
}
static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
struct wps_event_m2d *m2d)
{
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
"dev_password_id=%d config_error=%d",
m2d->dev_password_id, m2d->config_error);
wpas_notify_wps_event_m2d(wpa_s, m2d);
}
static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
struct wps_event_fail *fail)
{
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
wpas_clear_wps(wpa_s);
wpas_notify_wps_event_fail(wpa_s, fail);
}
static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
{
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
wpa_s->wps_success = 1;
wpas_notify_wps_event_success(wpa_s);
#ifdef CONFIG_P2P
wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
#endif /* CONFIG_P2P */
}
static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
struct wps_event_er_ap *ap)
{
char uuid_str[100];
char dev_type[WPS_DEV_TYPE_BUFSIZE];
uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
if (ap->pri_dev_type)
wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
sizeof(dev_type));
else
dev_type[0] = '\0';
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
" pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
ap->friendly_name ? ap->friendly_name : "",
ap->manufacturer ? ap->manufacturer : "",
ap->model_description ? ap->model_description : "",
ap->model_name ? ap->model_name : "",
ap->manufacturer_url ? ap->manufacturer_url : "",
ap->model_url ? ap->model_url : "");
}
static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
struct wps_event_er_ap *ap)
{
char uuid_str[100];
uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
}
static void wpa_supplicant_wps_event_er_enrollee_add(
struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
{
char uuid_str[100];
char dev_type[WPS_DEV_TYPE_BUFSIZE];
uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
if (enrollee->pri_dev_type)
wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
sizeof(dev_type));
else
dev_type[0] = '\0';
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
" M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
"|%s|%s|%s|%s|%s|",
uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
enrollee->dev_name ? enrollee->dev_name : "",
enrollee->manufacturer ? enrollee->manufacturer : "",
enrollee->model_name ? enrollee->model_name : "",
enrollee->model_number ? enrollee->model_number : "",
enrollee->serial_number ? enrollee->serial_number : "");
}
static void wpa_supplicant_wps_event_er_enrollee_remove(
struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
{
char uuid_str[100];
uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
uuid_str, MAC2STR(enrollee->mac_addr));
}
static void wpa_supplicant_wps_event_er_ap_settings(
struct wpa_supplicant *wpa_s,
struct wps_event_er_ap_settings *ap_settings)
{
char uuid_str[100];
char key_str[65];
const struct wps_credential *cred = ap_settings->cred;
key_str[0] = '\0';
if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
if (cred->key_len >= 8 && cred->key_len <= 64) {
os_memcpy(key_str, cred->key, cred->key_len);
key_str[cred->key_len] = '\0';
}
}
uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
/* Use wpa_msg_ctrl to avoid showing the key in debug log */
wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
"uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
"key=%s",
uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
cred->auth_type, cred->encr_type, key_str);
}
static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
union wps_event_data *data)
{
struct wpa_supplicant *wpa_s = ctx;
switch (event) {
case WPS_EV_M2D:
wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
break;
case WPS_EV_FAIL:
wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
break;
case WPS_EV_SUCCESS:
wpa_supplicant_wps_event_success(wpa_s);
break;
case WPS_EV_PWD_AUTH_FAIL:
break;
case WPS_EV_PBC_OVERLAP:
break;
case WPS_EV_PBC_TIMEOUT:
break;
case WPS_EV_ER_AP_ADD:
wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
break;
case WPS_EV_ER_AP_REMOVE:
wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
break;
case WPS_EV_ER_ENROLLEE_ADD:
wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
&data->enrollee);
break;
case WPS_EV_ER_ENROLLEE_REMOVE:
wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
&data->enrollee);
break;
case WPS_EV_ER_AP_SETTINGS:
wpa_supplicant_wps_event_er_ap_settings(wpa_s,
&data->ap_settings);
break;
}
}
enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
{
if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
eap_is_wps_pin_enrollee(&ssid->eap))
return WPS_REQ_ENROLLEE;
else
return WPS_REQ_REGISTRAR;
}
static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
{
int id;
struct wpa_ssid *ssid, *remove_ssid = NULL;
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
/* Remove any existing WPS network from configuration */
ssid = wpa_s->conf->ssid;
while (ssid) {
if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
if (ssid == wpa_s->current_ssid) {
wpa_s->current_ssid = NULL;
if (ssid != NULL)
wpas_notify_network_changed(wpa_s);
}
id = ssid->id;
remove_ssid = ssid;
} else
id = -1;
ssid = ssid->next;
if (id >= 0) {
wpas_notify_network_removed(wpa_s, remove_ssid);
wpa_config_remove_network(wpa_s->conf, id);
}
}
}
static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
"out");
wpas_clear_wps(wpa_s);
}
static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
int registrar, const u8 *bssid)
{
struct wpa_ssid *ssid;
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL)
return NULL;
wpas_notify_network_added(wpa_s, ssid);
wpa_config_set_network_defaults(ssid);
ssid->temporary = 1;
if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
wpa_config_set(ssid, "identity", registrar ?
"\"" WSC_ID_REGISTRAR "\"" :
"\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
wpas_notify_network_removed(wpa_s, ssid);
wpa_config_remove_network(wpa_s->conf, ssid->id);
return NULL;
}
if (bssid) {
#ifndef CONFIG_P2P
struct wpa_bss *bss;
int count = 0;
#endif /* CONFIG_P2P */
os_memcpy(ssid->bssid, bssid, ETH_ALEN);
ssid->bssid_set = 1;
/*
* Note: With P2P, the SSID may change at the time the WPS
* provisioning is started, so better not filter the AP based
* on the current SSID in the scan results.
*/
#ifndef CONFIG_P2P
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
continue;
os_free(ssid->ssid);
ssid->ssid = os_malloc(bss->ssid_len);
if (ssid->ssid == NULL)
break;
os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
ssid->ssid_len = bss->ssid_len;
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
"scan results",
ssid->ssid, ssid->ssid_len);
count++;
}
if (count > 1) {
wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
"for the AP; use wildcard");
os_free(ssid->ssid);
ssid->ssid = NULL;
ssid->ssid_len = 0;
}
#endif /* CONFIG_P2P */
}
return ssid;
}
static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
struct wpa_ssid *selected)
{
struct wpa_ssid *ssid;
/* Mark all other networks disabled and trigger reassociation */
ssid = wpa_s->conf->ssid;
while (ssid) {
int was_disabled = ssid->disabled;
ssid->disabled = ssid != selected;
if (was_disabled != ssid->disabled)
wpas_notify_network_enabled_changed(wpa_s, ssid);
ssid = ssid->next;
}
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_s->scan_runs = 0;
wpa_s->wps_success = 0;
wpa_s->blacklist_cleared = 0;
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
int p2p_group)
{
struct wpa_ssid *ssid;
wpas_clear_wps(wpa_s);
ssid = wpas_wps_add_network(wpa_s, 0, bssid);
if (ssid == NULL)
return -1;
ssid->temporary = 1;
ssid->p2p_group = p2p_group;
if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
if (ssid->ssid) {
ssid->ssid_len = wpa_s->go_params->ssid_len;
os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
ssid->ssid_len);
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
"SSID", ssid->ssid, ssid->ssid_len);
}
}
wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
if (wpa_s->wps_fragment_size)
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid);
return 0;
}
int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *pin, int p2p_group, u16 dev_pw_id)
{
struct wpa_ssid *ssid;
char val[128];
unsigned int rpin = 0;
wpas_clear_wps(wpa_s);
ssid = wpas_wps_add_network(wpa_s, 0, bssid);
if (ssid == NULL)
return -1;
ssid->temporary = 1;
ssid->p2p_group = p2p_group;
if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
if (ssid->ssid) {
ssid->ssid_len = wpa_s->go_params->ssid_len;
os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
ssid->ssid_len);
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
"SSID", ssid->ssid, ssid->ssid_len);
}
}
if (pin)
os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
pin, dev_pw_id);
else {
rpin = wps_generate_pin();
os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
rpin, dev_pw_id);
}
wpa_config_set(ssid, "phase1", val, 0);
if (wpa_s->wps_fragment_size)
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid);
return rpin;
}
#ifdef CONFIG_WPS_OOB
int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
char *path, char *method, char *name)
{
struct wps_context *wps = wpa_s->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_E) {
/*
* 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 = NULL;
dh5_free(wps->dh_ctx);
wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
"Diffie-Hellman handshake");
return -1;
}
}
if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
wpas_clear_wps(wpa_s);
if (wps_process_oob(wps, oob_dev, 0) < 0)
return -1;
if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
wpas_wps_start_pin(wpa_s, NULL,
wpabuf_head(wps->oob_conf.dev_password), 0) < 0)
return -1;
return 0;
}
#endif /* CONFIG_WPS_OOB */
int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *pin, struct wps_new_ap_settings *settings)
{
struct wpa_ssid *ssid;
char val[200];
char *pos, *end;
int res;
if (!pin)
return -1;
wpas_clear_wps(wpa_s);
ssid = wpas_wps_add_network(wpa_s, 1, bssid);
if (ssid == NULL)
return -1;
ssid->temporary = 1;
pos = val;
end = pos + sizeof(val);
res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
if (res < 0 || res >= end - pos)
return -1;
pos += res;
if (settings) {
res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
"new_encr=%s new_key=%s",
settings->ssid_hex, settings->auth,
settings->encr, settings->key_hex);
if (res < 0 || res >= end - pos)
return -1;
pos += res;
}
res = os_snprintf(pos, end - pos, "\"");
if (res < 0 || res >= end - pos)
return -1;
wpa_config_set(ssid, "phase1", val, 0);
if (wpa_s->wps_fragment_size)
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid);
return 0;
}
static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
size_t psk_len)
{
wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
"STA " MACSTR, MAC2STR(mac_addr));
wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
/* TODO */
return 0;
}
static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
const struct wps_device_data *dev)
{
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 UUID-E %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_printf(MSG_INFO, "%s", txt);
}
static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
u16 sel_reg_config_methods)
{
#ifdef CONFIG_WPS_ER
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->wps_er == NULL)
return;
wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
"dev_password_id=%u sel_reg_config_methods=0x%x",
sel_reg, dev_passwd_id, sel_reg_config_methods);
wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
sel_reg_config_methods);
#endif /* CONFIG_WPS_ER */
}
int wpas_wps_init(struct wpa_supplicant *wpa_s)
{
struct wps_context *wps;
struct wps_registrar_config rcfg;
wps = os_zalloc(sizeof(*wps));
if (wps == NULL)
return -1;
wps->cred_cb = wpa_supplicant_wps_cred;
wps->event_cb = wpa_supplicant_wps_event;
wps->cb_ctx = wpa_s;
wps->dev.device_name = wpa_s->conf->device_name;
wps->dev.manufacturer = wpa_s->conf->manufacturer;
wps->dev.model_name = wpa_s->conf->model_name;
wps->dev.model_number = wpa_s->conf->model_number;
wps->dev.serial_number = wpa_s->conf->serial_number;
wps->config_methods =
wps_config_methods_str2bin(wpa_s->conf->config_methods);
if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
(WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
"methods are not allowed at the same time");
os_free(wps);
return -1;
}
if (wpa_s->conf->device_type &&
wps_dev_type_str2bin(wpa_s->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(wpa_s->conf->os_version);
wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
if (is_nil_uuid(wpa_s->conf->uuid)) {
uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
wps->uuid, WPS_UUID_LEN);
} else
os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
os_memset(&rcfg, 0, sizeof(rcfg));
rcfg.new_psk_cb = wpas_wps_new_psk_cb;
rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
rcfg.cb_ctx = wpa_s;
wps->registrar = wps_registrar_init(wps, &rcfg);
if (wps->registrar == NULL) {
wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
os_free(wps);
return -1;
}
wpa_s->wps = wps;
return 0;
}
void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
{
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
if (wpa_s->wps == NULL)
return;
#ifdef CONFIG_WPS_ER
wps_er_deinit(wpa_s->wps_er, NULL, NULL);
wpa_s->wps_er = NULL;
#endif /* CONFIG_WPS_ER */
wps_registrar_deinit(wpa_s->wps->registrar);
wpabuf_free(wpa_s->wps->dh_pubkey);
wpabuf_free(wpa_s->wps->dh_privkey);
wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
wpabuf_free(wpa_s->wps->oob_conf.dev_password);
os_free(wpa_s->wps->network_key);
os_free(wpa_s->wps);
wpa_s->wps = NULL;
}
int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid, struct wpa_scan_res *bss)
{
struct wpabuf *wps_ie;
if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
return -1;
wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
if (!wps_ie) {
wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
return 0;
}
if (!wps_is_selected_pbc_registrar(wps_ie)) {
wpa_printf(MSG_DEBUG, " skip - WPS AP "
"without active PBC Registrar");
wpabuf_free(wps_ie);
return 0;
}
/* TODO: overlap detection */
wpa_printf(MSG_DEBUG, " selected based on WPS IE "
"(Active PBC)");
wpabuf_free(wps_ie);
return 1;
}
if (eap_is_wps_pin_enrollee(&ssid->eap)) {
if (!wps_ie) {
wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
return 0;
}
/*
* Start with WPS APs that advertise our address as an
* authorized MAC (v2.0) or active PIN Registrar (v1.0) and
* allow any WPS AP after couple of scans since some APs do not
* set Selected Registrar attribute properly when using
* external Registrar.
*/
if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
wpa_printf(MSG_DEBUG, " skip - WPS AP "
"without active PIN Registrar");
wpabuf_free(wps_ie);
return 0;
}
wpa_printf(MSG_DEBUG, " selected based on WPS IE");
} else {
wpa_printf(MSG_DEBUG, " selected based on WPS IE "
"(Authorized MAC or Active PIN)");
}
wpabuf_free(wps_ie);
return 1;
}
if (wps_ie) {
wpa_printf(MSG_DEBUG, " selected based on WPS IE");
wpabuf_free(wps_ie);
return 1;
}
return -1;
}
int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct wpa_scan_res *bss)
{
struct wpabuf *wps_ie = NULL;
int ret = 0;
if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
/* allow wildcard SSID for WPS PBC */
ret = 1;
}
} else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
if (wps_ie &&
(wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
/* allow wildcard SSID for WPS PIN */
ret = 1;
}
}
if (!ret && ssid->bssid_set &&
os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
/* allow wildcard SSID due to hardcoded BSSID match */
ret = 1;
}
#ifdef CONFIG_WPS_STRICT
if (wps_ie) {
if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
0) < 0)
ret = 0;
if (bss->beacon_ie_len) {
struct wpabuf *bcn_wps;
bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
bss, WPS_IE_VENDOR_TYPE);
if (bcn_wps == NULL) {
wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
"missing from AP Beacon");
ret = 0;
} else {
if (wps_validate_beacon(wps_ie) < 0)
ret = 0;
wpabuf_free(bcn_wps);
}
}
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_free(wps_ie);
return ret;
}
int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
struct wpa_bss *selected, struct wpa_ssid *ssid)
{
const u8 *sel_uuid, *uuid;
struct wpabuf *wps_ie;
int ret = 0;
struct wpa_bss *bss;
if (!eap_is_wps_pbc_enrollee(&ssid->eap))
return 0;
/* Make sure that only one AP is in active PBC mode */
wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
if (wps_ie)
sel_uuid = wps_get_uuid_e(wps_ie);
else
sel_uuid = NULL;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
struct wpabuf *ie;
if (bss == selected)
continue;
ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
if (!ie)
continue;
if (!wps_is_selected_pbc_registrar(ie)) {
wpabuf_free(ie);
continue;
}
uuid = wps_get_uuid_e(ie);
if (sel_uuid == NULL || uuid == NULL ||
os_memcmp(sel_uuid, uuid, 16) != 0) {
ret = 1; /* PBC overlap */
wpabuf_free(ie);
break;
}
/* TODO: verify that this is reasonable dual-band situation */
wpabuf_free(ie);
}
wpabuf_free(wps_ie);
return ret;
}
void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
return;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
struct wpabuf *ie;
ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
if (!ie)
continue;
if (wps_is_selected_pbc_registrar(ie))
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPS_EVENT_AP_AVAILABLE_PBC);
else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPS_EVENT_AP_AVAILABLE_AUTH);
else if (wps_is_selected_pin_registrar(ie))
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPS_EVENT_AP_AVAILABLE_PIN);
else
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPS_EVENT_AP_AVAILABLE);
wpabuf_free(ie);
break;
}
}
int wpas_wps_searching(struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
return 1;
}
return 0;
}
int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
char *end)
{
struct wpabuf *wps_ie;
int ret;
wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
if (wps_ie == NULL)
return 0;
ret = wps_attr_text(wps_ie, buf, end);
wpabuf_free(wps_ie);
return ret;
}
int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
{
#ifdef CONFIG_WPS_ER
if (wpa_s->wps_er) {
wps_er_refresh(wpa_s->wps_er);
return 0;
}
wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
if (wpa_s->wps_er == NULL)
return -1;
return 0;
#else /* CONFIG_WPS_ER */
return 0;
#endif /* CONFIG_WPS_ER */
}
int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_WPS_ER
wps_er_deinit(wpa_s->wps_er, NULL, NULL);
wpa_s->wps_er = NULL;
#endif /* CONFIG_WPS_ER */
return 0;
}
#ifdef CONFIG_WPS_ER
int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
const char *uuid, const char *pin)
{
u8 u[UUID_LEN];
int any = 0;
if (os_strcmp(uuid, "any") == 0)
any = 1;
else if (uuid_str2bin(uuid, u))
return -1;
return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
any ? NULL : u,
(const u8 *) pin, os_strlen(pin), 300);
}
int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
{
u8 u[UUID_LEN];
if (uuid_str2bin(uuid, u))
return -1;
return wps_er_pbc(wpa_s->wps_er, u);
}
int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
const char *pin)
{
u8 u[UUID_LEN];
if (uuid_str2bin(uuid, u))
return -1;
return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
os_strlen(pin));
}
int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
const char *pin, struct wps_new_ap_settings *settings)
{
u8 u[UUID_LEN];
struct wps_credential cred;
size_t len;
if (uuid_str2bin(uuid, u))
return -1;
if (settings->ssid_hex == NULL || settings->auth == NULL ||
settings->encr == NULL || settings->key_hex == NULL)
return -1;
os_memset(&cred, 0, sizeof(cred));
len = os_strlen(settings->ssid_hex);
if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
return -1;
cred.ssid_len = len / 2;
len = os_strlen(settings->key_hex);
if ((len & 1) || len > 2 * sizeof(cred.key) ||
hexstr2bin(settings->key_hex, cred.key, len / 2))
return -1;
cred.key_len = len / 2;
if (os_strcmp(settings->auth, "OPEN") == 0)
cred.auth_type = WPS_AUTH_OPEN;
else if (os_strcmp(settings->auth, "WPAPSK") == 0)
cred.auth_type = WPS_AUTH_WPAPSK;
else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
cred.auth_type = WPS_AUTH_WPA2PSK;
else
return -1;
if (os_strcmp(settings->encr, "NONE") == 0)
cred.encr_type = WPS_ENCR_NONE;
else if (os_strcmp(settings->encr, "WEP") == 0)
cred.encr_type = WPS_ENCR_WEP;
else if (os_strcmp(settings->encr, "TKIP") == 0)
cred.encr_type = WPS_ENCR_TKIP;
else if (os_strcmp(settings->encr, "CCMP") == 0)
cred.encr_type = WPS_ENCR_AES;
else
return -1;
return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
os_strlen(pin), &cred);
}
static void wpas_wps_terminate_cb(void *ctx)
{
wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
eloop_terminate();
}
#endif /* CONFIG_WPS_ER */
int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_WPS_ER
if (wpa_s->wps_er) {
wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
wpa_s->wps_er = NULL;
return 1;
}
#endif /* CONFIG_WPS_ER */
return 0;
}
int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
return 1;
}
return 0;
}
void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
{
struct wps_context *wps = wpa_s->wps;
if (wps == NULL)
return;
if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
wps->config_methods = wps_config_methods_str2bin(
wpa_s->conf->config_methods);
if ((wps->config_methods &
(WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
(WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
"config methods are not allowed at the "
"same time");
wps->config_methods &= ~WPS_CONFIG_LABEL;
}
}
if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
if (wpa_s->conf->device_type &&
wps_dev_type_str2bin(wpa_s->conf->device_type,
wps->dev.pri_dev_type) < 0)
wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
}
if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) {
if (is_nil_uuid(wpa_s->conf->uuid)) {
uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
"address", wps->uuid, WPS_UUID_LEN);
} else
os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
}
if (wpa_s->conf->changed_parameters &
(CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
/* Update pointers to make sure they refer current values */
wps->dev.device_name = wpa_s->conf->device_name;
wps->dev.manufacturer = wpa_s->conf->manufacturer;
wps->dev.model_name = wpa_s->conf->model_name;
wps->dev.model_number = wpa_s->conf->model_number;
wps->dev.serial_number = wpa_s->conf->serial_number;
}
}
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