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hostapd/wpa_supplicant/wps_supplicant.c
Jouni Malinen 3fadb1dcc0 WPS: Ignore other APs if PBC is used with a specific BSSID 
While the WSC specification requires the Enrollee to stop PBC
provisioning if the scan sees multiple APs in active PBC mode, this is
problematic due to some deployed devices continuing to advertise PBC
mode for extended duration (or even permanently). Such an environment
will still need to prevent wildcard AP selection with PBC since an
incorrect device could be selected. However, if the Enrollee device has
been explicitly requested to connect to a specific AP based on its
BSSID, the other APs in scan results can be ignored without affecting
which AP would be selected (only the one matching the specified BSSID is
acceptable).

Start filtering scan results for PBC session overlap check based on the
locally specified constraint on the BSSID, if one is set. This allows
PBC to be used with "WPS_PBC <BSSID>" command in environment where
another AP device is claiming to be in active PBC mode while "WPS_PBC"
command will still continue to reject provisioning since the correct AP
cannot be selected.

This will also cover the P2P cases where P2P_CONNECT is used to start or
authorize GO Negotiation and joining-a-GO with a specific P2P GO
Interface Address (BSSID).

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-02-24 19:53:49 +02:00

2997 lines
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/*
* wpa_supplicant / WPS integration
* Copyright (c) 2008-2014, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "eloop.h"
#include "uuid.h"
#include "crypto/random.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 "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "wps/wps_attr_parse.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 "ap.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 */
/*
* The minimum time in seconds before trying to associate to a WPS PIN AP that
* does not have Selected Registrar TRUE.
*/
#ifndef WPS_PIN_TIME_IGNORE_SEL_REG
#define WPS_PIN_TIME_IGNORE_SEL_REG 5
#endif /* WPS_PIN_TIME_IGNORE_SEL_REG */
static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
{
os_free(wpa_s->wps_ap);
wpa_s->wps_ap = NULL;
wpa_s->num_wps_ap = 0;
wpa_s->wps_ap_iter = 0;
}
static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
int use_fast_assoc = timeout_ctx != NULL;
wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb");
if (!use_fast_assoc ||
wpa_supplicant_fast_associate(wpa_s) != 1)
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s)
{
eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0);
eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1);
}
int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
{
if (wpas_p2p_wps_eapol_cb(wpa_s) > 0)
return 1;
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;
}
wpas_wps_clear_ap_info(wpa_s);
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
!(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
int disabled = wpa_s->current_ssid->disabled;
unsigned int freq = wpa_s->assoc_freq;
struct wpa_bss *bss;
struct wpa_ssid *ssid = NULL;
int use_fast_assoc = 0;
wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
"try to associate with the received credential "
"(freq=%u)", freq);
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
if (disabled) {
wpa_printf(MSG_DEBUG, "WPS: Current network is "
"disabled - wait for user to enable");
return 1;
}
wpa_s->after_wps = 5;
wpa_s->wps_freq = freq;
wpa_s->normal_scans = 0;
wpa_s->reassociate = 1;
wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
"without a new scan can be used");
bss = wpa_supplicant_pick_network(wpa_s, &ssid);
if (bss) {
struct wpabuf *wps;
struct wps_parse_attr attr;
wps = wpa_bss_get_vendor_ie_multi(bss,
WPS_IE_VENDOR_TYPE);
if (wps && wps_parse_msg(wps, &attr) == 0 &&
attr.wps_state &&
*attr.wps_state == WPS_STATE_CONFIGURED)
use_fast_assoc = 1;
wpabuf_free(wps);
}
/*
* Complete the next step from an eloop timeout to allow pending
* driver events related to the disconnection to be processed
* first. This makes it less likely for disconnection event to
* cause problems with the following connection.
*/
wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout");
wpas_wps_assoc_with_cred_cancel(wpa_s);
eloop_register_timeout(0, 10000,
wpas_wps_assoc_with_cred, wpa_s,
use_fast_assoc ? (void *) 1 :
(void *) 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_s->own_disconnect_req = 1;
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 */
if (ssid->ssid == NULL)
return;
bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
if (!bss)
bss = wpa_bss_get(wpa_s, wpa_s->bssid,
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 void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid *new_ssid)
{
struct wpa_ssid *ssid, *next;
for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
ssid = next, next = ssid ? ssid->next : NULL) {
/*
* new_ssid has already been added to the list in
* wpas_wps_add_network(), so skip it.
*/
if (ssid == new_ssid)
continue;
if (ssid->bssid_set || new_ssid->bssid_set) {
if (ssid->bssid_set != new_ssid->bssid_set)
continue;
if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
0)
continue;
}
/* compare SSID */
if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
continue;
if (ssid->ssid && new_ssid->ssid) {
if (os_memcmp(ssid->ssid, new_ssid->ssid,
ssid->ssid_len) != 0)
continue;
} else if (ssid->ssid || new_ssid->ssid)
continue;
/* compare security parameters */
if (ssid->auth_alg != new_ssid->auth_alg ||
ssid->key_mgmt != new_ssid->key_mgmt ||
(ssid->group_cipher != new_ssid->group_cipher &&
!(ssid->group_cipher & new_ssid->group_cipher &
WPA_CIPHER_CCMP)))
continue;
/*
* Some existing WPS APs will send two creds in case they are
* configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP).
* Try to merge these two creds if they are received in the same
* M8 message.
*/
if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run &&
wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
if (new_ssid->passphrase && ssid->passphrase &&
os_strcmp(new_ssid->passphrase, ssid->passphrase) !=
0) {
wpa_printf(MSG_DEBUG,
"WPS: M8 Creds with different passphrase - do not merge");
continue;
}
if (new_ssid->psk_set &&
(!ssid->psk_set ||
os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) {
wpa_printf(MSG_DEBUG,
"WPS: M8 Creds with different PSK - do not merge");
continue;
}
if ((new_ssid->passphrase && !ssid->passphrase) ||
(!new_ssid->passphrase && ssid->passphrase)) {
wpa_printf(MSG_DEBUG,
"WPS: M8 Creds with different passphrase/PSK type - do not merge");
continue;
}
wpa_printf(MSG_DEBUG,
"WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message");
new_ssid->proto |= ssid->proto;
new_ssid->pairwise_cipher |= ssid->pairwise_cipher;
} else {
/*
* proto and pairwise_cipher difference matter for
* non-mixed-mode creds.
*/
if (ssid->proto != new_ssid->proto ||
ssid->pairwise_cipher != new_ssid->pairwise_cipher)
continue;
}
/* Remove the duplicated older network entry. */
wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
wpas_notify_network_removed(wpa_s, ssid);
if (wpa_s->current_ssid == ssid)
wpa_s->current_ssid = NULL;
wpa_config_remove_network(wpa_s->conf, ssid->id);
}
}
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;
u16 auth_type;
#ifdef CONFIG_WPS_REG_DISABLE_OPEN
int registrar = 0;
#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
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_WPAPSK &&
auth_type != WPS_AUTH_WPA2PSK) {
wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
"unsupported authentication type 0x%x",
auth_type);
return 0;
}
if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
"invalid Network Key length %lu",
(unsigned long) cred->key_len);
return -1;
}
}
if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
"on the received credential");
#ifdef CONFIG_WPS_REG_DISABLE_OPEN
if (ssid->eap.identity &&
ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
WSC_ID_REGISTRAR_LEN) == 0)
registrar = 1;
#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
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;
ssid->bssid_set = 0;
}
ssid->disabled_until.sec = 0;
ssid->disabled_until.usec = 0;
ssid->auth_failures = 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;
if (wpa_s->current_ssid) {
/*
* Should the GO issue multiple credentials for some
* reason, each credential should be marked as a
* temporary P2P group similarly to the one that gets
* marked as such based on the pre-configured values
* used for the WPS network block.
*/
ssid->p2p_group = wpa_s->current_ssid->p2p_group;
ssid->temporary = wpa_s->current_ssid->temporary;
}
wpas_notify_network_added(wpa_s, ssid);
}
wpa_config_set_network_defaults(ssid);
ssid->wps_run = wpa_s->wps_run;
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_TKIP:
ssid->pairwise_cipher = WPA_CIPHER_TKIP;
break;
case WPS_ENCR_AES:
ssid->pairwise_cipher = WPA_CIPHER_CCMP;
if (wpa_s->drv_capa_known &&
(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) {
ssid->pairwise_cipher |= WPA_CIPHER_GCMP;
ssid->group_cipher |= WPA_CIPHER_GCMP;
}
if (wpa_s->drv_capa_known &&
(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP_256)) {
ssid->pairwise_cipher |= WPA_CIPHER_GCMP_256;
ssid->group_cipher |= WPA_CIPHER_GCMP_256;
}
if (wpa_s->drv_capa_known &&
(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_CCMP_256)) {
ssid->pairwise_cipher |= WPA_CIPHER_CCMP_256;
ssid->group_cipher |= WPA_CIPHER_CCMP_256;
}
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;
#ifdef CONFIG_WPS_REG_DISABLE_OPEN
if (registrar) {
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
"id=%d - Credentials for an open "
"network disabled by default - use "
"'select_network %d' to enable",
ssid->id, ssid->id);
ssid->disabled = 1;
}
#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
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_WPA2PSK:
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
ssid->key_mgmt = WPA_KEY_MGMT_PSK;
if (wpa_s->conf->wps_cred_add_sae &&
cred->key_len != 2 * PMK_LEN) {
ssid->key_mgmt |= WPA_KEY_MGMT_SAE;
ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
}
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;
ssid->export_keys = 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);
ssid->export_keys = 1;
} else {
wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
"length %lu",
(unsigned long) cred->key_len);
return -1;
}
}
ssid->priority = wpa_s->conf->wps_priority;
wpas_wps_security_workaround(wpa_s, ssid, cred);
wpas_wps_remove_dup_network(wpa_s, ssid);
#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 */
if (ssid->priority)
wpa_config_update_prio_list(wpa_s->conf);
/*
* Optimize the post-WPS scan based on the channel used during
* the provisioning in case EAP-Failure is not received.
*/
wpa_s->after_wps = 5;
wpa_s->wps_freq = wpa_s->assoc_freq;
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);
#ifdef CONFIG_P2P
if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) {
wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D
"dev_password_id=%d config_error=%d",
m2d->dev_password_id, m2d->config_error);
}
if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
/*
* Notify P2P from eloop timeout to avoid issues with the
* interface getting removed while processing a message.
*/
eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s,
NULL);
}
#endif /* CONFIG_P2P */
}
static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout");
wpas_clear_wps(wpa_s);
}
static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
struct wps_event_fail *fail)
{
if (fail->error_indication > 0 &&
fail->error_indication < NUM_WPS_EI_VALUES) {
wpa_msg(wpa_s, MSG_INFO,
WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
fail->msg, fail->config_error, fail->error_indication,
wps_ei_str(fail->error_indication));
if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
"msg=%d config_error=%d reason=%d (%s)",
fail->msg, fail->config_error,
fail->error_indication,
wps_ei_str(fail->error_indication));
} else {
wpa_msg(wpa_s, MSG_INFO,
WPS_EVENT_FAIL "msg=%d config_error=%d",
fail->msg, fail->config_error);
if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
"msg=%d config_error=%d",
fail->msg, fail->config_error);
}
/*
* Need to allow WPS processing to complete, e.g., by sending WSC_NACK.
*/
wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network");
eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL);
wpas_notify_wps_event_fail(wpa_s, fail);
wpas_p2p_wps_failed(wpa_s, fail);
}
static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid;
int changed = 0;
eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (ssid->disabled_for_connect && ssid->disabled) {
ssid->disabled_for_connect = 0;
ssid->disabled = 0;
wpas_notify_network_enabled_changed(wpa_s, ssid);
changed++;
}
}
if (changed) {
#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");
}
#endif /* CONFIG_NO_CONFIG_WRITE */
}
}
static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
/* Enable the networks disabled during wpas_wps_reassoc */
wpas_wps_reenable_networks(wpa_s);
}
int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s)
{
return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb,
wpa_s, NULL);
}
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);
if (wpa_s->current_ssid)
wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
wpa_s->extra_blacklist_count = 0;
/*
* Enable the networks disabled during wpas_wps_reassoc after 10
* seconds. The 10 seconds timer is to allow the data connection to be
* formed before allowing other networks to be selected.
*/
eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
NULL);
wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
}
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_er_set_sel_reg(
struct wpa_supplicant *wpa_s,
struct wps_event_er_set_selected_registrar *ev)
{
char uuid_str[100];
uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
switch (ev->state) {
case WPS_ER_SET_SEL_REG_START:
wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
"uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
"sel_reg_config_methods=0x%x",
uuid_str, ev->sel_reg, ev->dev_passwd_id,
ev->sel_reg_config_methods);
break;
case WPS_ER_SET_SEL_REG_DONE:
wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
"uuid=%s state=DONE", uuid_str);
break;
case WPS_ER_SET_SEL_REG_FAILED:
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
"uuid=%s state=FAILED", uuid_str);
break;
}
}
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:
#ifdef CONFIG_AP
if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
wpa_supplicant_ap_pwd_auth_fail(wpa_s);
#endif /* CONFIG_AP */
break;
case WPS_EV_PBC_OVERLAP:
break;
case WPS_EV_PBC_TIMEOUT:
break;
case WPS_EV_PBC_ACTIVE:
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE);
break;
case WPS_EV_PBC_DISABLE:
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE);
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;
case WPS_EV_ER_SET_SELECTED_REGISTRAR:
wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
&data->set_sel_reg);
break;
case WPS_EV_AP_PIN_SUCCESS:
break;
}
}
static int wpa_supplicant_wps_rf_band(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
if (!wpa_s->current_ssid || !wpa_s->assoc_freq)
return 0;
return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ :
(wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ;
}
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, *prev_current;
wpa_s->after_wps = 0;
wpa_s->known_wps_freq = 0;
prev_current = wpa_s->current_ssid;
/* Enable the networks disabled during wpas_wps_reassoc */
wpas_wps_reenable_networks(wpa_s);
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
eloop_cancel_timeout(wpas_wps_clear_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->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
id = ssid->id;
remove_ssid = ssid;
} else
id = -1;
ssid = ssid->next;
if (id >= 0) {
if (prev_current == remove_ssid) {
wpa_sm_set_config(wpa_s->wpa, NULL);
eapol_sm_notify_config(wpa_s->eapol, NULL,
NULL);
}
wpas_notify_network_removed(wpa_s, remove_ssid);
wpa_config_remove_network(wpa_s->conf, id);
}
}
wpas_wps_clear_ap_info(wpa_s);
}
static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
union wps_event_data data;
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
"out");
os_memset(&data, 0, sizeof(data));
data.fail.config_error = WPS_CFG_MSG_TIMEOUT;
data.fail.error_indication = WPS_EI_NO_ERROR;
/*
* Call wpas_notify_wps_event_fail() directly instead of through
* wpa_supplicant_wps_event() which would end up registering unnecessary
* timeouts (those are only for the case where the failure happens
* during an EAP-WSC exchange).
*/
wpas_notify_wps_event_fail(wpa_s, &data.fail);
wpas_clear_wps(wpa_s);
}
static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
int registrar, const u8 *dev_addr,
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;
}
#ifdef CONFIG_P2P
if (dev_addr)
os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN);
#endif /* CONFIG_P2P */
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_memdup(bss->ssid, bss->ssid_len);
if (ssid->ssid == NULL)
break;
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_temp_disable(struct wpa_supplicant *wpa_s,
struct wpa_ssid *selected)
{
struct wpa_ssid *ssid;
if (wpa_s->current_ssid) {
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
/* Mark all other networks disabled and trigger reassociation */
ssid = wpa_s->conf->ssid;
while (ssid) {
int was_disabled = ssid->disabled;
ssid->disabled_for_connect = 0;
/*
* In case the network object corresponds to a persistent group
* then do not send out network disabled signal. In addition,
* do not change disabled status of persistent network objects
* from 2 to 1 should we connect to another network.
*/
if (was_disabled != 2) {
ssid->disabled = ssid != selected;
if (was_disabled != ssid->disabled) {
if (ssid->disabled)
ssid->disabled_for_connect = 1;
wpas_notify_network_enabled_changed(wpa_s,
ssid);
}
}
ssid = ssid->next;
}
}
static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
struct wpa_ssid *selected, const u8 *bssid,
int freq)
{
struct wpa_bss *bss;
wpa_s->wps_run++;
if (wpa_s->wps_run == 0)
wpa_s->wps_run++;
wpa_s->after_wps = 0;
wpa_s->known_wps_freq = 0;
if (freq) {
wpa_s->after_wps = 5;
wpa_s->wps_freq = freq;
} else if (bssid) {
bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
if (bss && bss->freq > 0) {
wpa_s->known_wps_freq = 1;
wpa_s->wps_freq = bss->freq;
}
}
wpas_wps_temp_disable(wpa_s, selected);
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_s->scan_runs = 0;
wpa_s->normal_scans = 0;
wpa_s->wps_success = 0;
wpa_s->blacklist_cleared = 0;
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
int p2p_group, int multi_ap_backhaul_sta)
{
struct wpa_ssid *ssid;
char phase1[32];
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
wpa_printf(MSG_DEBUG,
"WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
return -1;
}
#endif /* CONFIG_AP */
wpas_clear_wps(wpa_s);
ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid);
if (ssid == NULL)
return -1;
ssid->temporary = 1;
ssid->p2p_group = p2p_group;
/*
* When starting a regular WPS process (not P2P group formation)
* the registrar/final station can be either AP or PCP
* so use a "don't care" value for the pbss flag.
*/
if (!p2p_group)
ssid->pbss = 2;
#ifdef CONFIG_P2P
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);
if (wpa_s->go_params->freq > 56160) {
/* P2P in 60 GHz uses PBSS */
ssid->pbss = 1;
}
if (wpa_s->go_params->edmg &&
wpas_p2p_try_edmg_channel(wpa_s,
wpa_s->go_params) == 0)
ssid->enable_edmg = 1;
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
"SSID", ssid->ssid, ssid->ssid_len);
}
}
#endif /* CONFIG_P2P */
os_snprintf(phase1, sizeof(phase1), "pbc=1%s",
multi_ap_backhaul_sta ? " multi_ap=1" : "");
if (wpa_config_set_quoted(ssid, "phase1", phase1) < 0)
return -1;
if (wpa_s->wps_fragment_size)
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
if (multi_ap_backhaul_sta)
ssid->multi_ap_backhaul_sta = 1;
wpa_supplicant_wps_event(wpa_s, WPS_EV_PBC_ACTIVE, NULL);
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
return 0;
}
static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
const u8 *dev_addr, const u8 *bssid,
const char *pin, int p2p_group, u16 dev_pw_id,
const u8 *peer_pubkey_hash,
const u8 *ssid_val, size_t ssid_len, int freq)
{
struct wpa_ssid *ssid;
char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
unsigned int rpin = 0;
char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10];
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
wpa_printf(MSG_DEBUG,
"WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
return -1;
}
#endif /* CONFIG_AP */
wpas_clear_wps(wpa_s);
if (bssid && is_zero_ether_addr(bssid))
bssid = NULL;
ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "WPS: Could not add network");
return -1;
}
ssid->temporary = 1;
ssid->p2p_group = p2p_group;
/*
* When starting a regular WPS process (not P2P group formation)
* the registrar/final station can be either AP or PCP
* so use a "don't care" value for the pbss flag.
*/
if (!p2p_group)
ssid->pbss = 2;
if (ssid_val) {
ssid->ssid = os_malloc(ssid_len);
if (ssid->ssid) {
os_memcpy(ssid->ssid, ssid_val, ssid_len);
ssid->ssid_len = ssid_len;
}
}
if (peer_pubkey_hash) {
os_memcpy(hash, " pkhash=", 8);
wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8,
peer_pubkey_hash,
WPS_OOB_PUBKEY_HASH_LEN);
} else {
hash[0] = '\0';
}
#ifdef CONFIG_P2P
if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
os_free(ssid->ssid);
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);
if (wpa_s->go_params->freq > 56160) {
/* P2P in 60 GHz uses PBSS */
ssid->pbss = 1;
}
if (wpa_s->go_params->edmg &&
wpas_p2p_try_edmg_channel(wpa_s,
wpa_s->go_params) == 0)
ssid->enable_edmg = 1;
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
"SSID", ssid->ssid, ssid->ssid_len);
}
}
#endif /* CONFIG_P2P */
if (pin)
os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"",
pin, dev_pw_id, hash);
else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) {
os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"",
dev_pw_id, hash);
} else {
if (wps_generate_pin(&rpin) < 0) {
wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN");
return -1;
}
os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"",
rpin, dev_pw_id, hash);
}
if (wpa_config_set(ssid, "phase1", val, 0) < 0) {
wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val);
return -1;
}
if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER)
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_PIN_ACTIVE);
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);
wpa_s->wps_ap_iter = 1;
wpas_wps_reassoc(wpa_s, ssid, bssid, freq);
return rpin;
}
int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *pin, int p2p_group, u16 dev_pw_id)
{
os_get_reltime(&wpa_s->wps_pin_start_time);
return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group,
dev_pw_id, NULL, NULL, 0, 0);
}
void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s)
{
union wps_event_data data;
os_memset(&data, 0, sizeof(data));
data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED;
data.fail.error_indication = WPS_EI_NO_ERROR;
/*
* Call wpas_notify_wps_event_fail() directly instead of through
* wpa_supplicant_wps_event() which would end up registering unnecessary
* timeouts (those are only for the case where the failure happens
* during an EAP-WSC exchange).
*/
wpas_notify_wps_event_fail(wpa_s, &data.fail);
}
/* Cancel the wps pbc/pin requests */
int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
return wpa_supplicant_ap_wps_cancel(wpa_s);
}
#endif /* CONFIG_AP */
if (wpa_s->wpa_state == WPA_SCANNING ||
wpa_s->wpa_state == WPA_DISCONNECTED) {
wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
wpa_supplicant_cancel_scan(wpa_s);
wpas_clear_wps(wpa_s);
} else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
"deauthenticate");
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
wpas_clear_wps(wpa_s);
} else {
wpas_wps_reenable_networks(wpa_s);
wpas_wps_clear_ap_info(wpa_s);
if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) >
0)
wpas_clear_wps(wpa_s);
}
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CANCEL);
wpa_s->after_wps = 0;
return 0;
}
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;
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
wpa_printf(MSG_DEBUG,
"WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
return -1;
}
#endif /* CONFIG_AP */
if (!pin)
return -1;
wpas_clear_wps(wpa_s);
ssid = wpas_wps_add_network(wpa_s, 1, NULL, 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 (os_snprintf_error(end - pos, res))
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 (os_snprintf_error(end - pos, res))
return -1;
pos += res;
}
res = os_snprintf(pos, end - pos, "\"");
if (os_snprintf_error(end - pos, res))
return -1;
if (wpa_config_set(ssid, "phase1", val, 0) < 0)
return -1;
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, bssid, 0);
return 0;
}
static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
const u8 *p2p_dev_addr, const u8 *psk,
size_t psk_len)
{
if (is_zero_ether_addr(p2p_dev_addr)) {
wpa_printf(MSG_DEBUG,
"Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
MAC2STR(mac_addr));
} else {
wpa_printf(MSG_DEBUG,
"Received new WPA/WPA2-PSK from WPS for STA " MACSTR
" P2P Device Addr " MACSTR,
MAC2STR(mac_addr), MAC2STR(p2p_dev_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 (!os_snprintf_error(sizeof(txt), len))
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 */
}
static u16 wps_fix_config_methods(u16 config_methods)
{
if ((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");
config_methods |= WPS_CONFIG_VIRT_DISPLAY;
}
if ((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");
config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
}
return config_methods;
}
static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
struct wps_context *wps)
{
char buf[50];
const char *src;
if (is_nil_uuid(wpa_s->conf->uuid)) {
struct wpa_supplicant *first;
first = wpa_s->global->ifaces;
while (first && first->next)
first = first->next;
if (first && first != wpa_s) {
if (wps != wpa_s->global->ifaces->wps)
os_memcpy(wps->uuid,
wpa_s->global->ifaces->wps->uuid,
WPS_UUID_LEN);
src = "from the first interface";
} else if (wpa_s->conf->auto_uuid == 1) {
uuid_random(wps->uuid);
src = "based on random data";
} else {
uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
src = "based on MAC address";
}
} else {
os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
src = "based on configuration";
}
uuid_bin2str(wps->uuid, buf, sizeof(buf));
wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf);
}
static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
struct wps_context *wps)
{
wpabuf_free(wps->dev.vendor_ext_m1);
wps->dev.vendor_ext_m1 = NULL;
if (wpa_s->conf->wps_vendor_ext_m1) {
wps->dev.vendor_ext_m1 =
wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
if (!wps->dev.vendor_ext_m1) {
wpa_printf(MSG_ERROR, "WPS: Cannot "
"allocate memory for vendor_ext_m1");
}
}
}
int wpas_wps_init(struct wpa_supplicant *wpa_s)
{
struct wps_context *wps;
struct wps_registrar_config rcfg;
struct hostapd_hw_modes *modes;
u16 m;
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->rf_band_cb = wpa_supplicant_wps_rf_band;
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;
}
wps->config_methods = wps_fix_config_methods(wps->config_methods);
wps->dev.config_methods = wps->config_methods;
os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
WPS_DEV_TYPE_LEN);
wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
wpas_wps_set_vendor_ext_m1(wpa_s, wps);
wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
modes = wpa_s->hw.modes;
if (modes) {
for (m = 0; m < wpa_s->hw.num_modes; m++) {
if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
modes[m].mode == HOSTAPD_MODE_IEEE80211G)
wps->dev.rf_bands |= WPS_RF_24GHZ;
else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
wps->dev.rf_bands |= WPS_RF_50GHZ;
else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD)
wps->dev.rf_bands |= WPS_RF_60GHZ;
}
}
if (wps->dev.rf_bands == 0) {
/*
* Default to claiming support for both bands if the driver
* does not provide support for fetching supported bands.
*/
wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
}
os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
wpas_wps_set_uuid(wpa_s, wps);
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;
}
#ifdef CONFIG_WPS_ER
static void wpas_wps_nfc_clear(struct wps_context *wps)
{
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_ER */
void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
{
wpas_wps_assoc_with_cred_cancel(wpa_s);
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
wpas_wps_clear_ap_info(wpa_s);
#ifdef CONFIG_P2P
eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL);
#endif /* CONFIG_P2P */
if (wpa_s->wps == NULL)
return;
#ifdef CONFIG_WPS_ER
wps_er_deinit(wpa_s->wps_er, NULL, NULL);
wpa_s->wps_er = NULL;
wpas_wps_nfc_clear(wpa_s->wps);
#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->dev.vendor_ext_m1);
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_bss *bss)
{
struct wpabuf *wps_ie;
if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
return -1;
wps_ie = wpa_bss_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)) {
struct os_reltime age;
os_reltime_age(&wpa_s->wps_pin_start_time, &age);
if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG ||
age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) {
wpa_printf(MSG_DEBUG,
" skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)",
wpa_s->scan_runs, (int) age.sec);
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_bss *bss)
{
struct wpabuf *wps_ie = NULL;
int ret = 0;
if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
wps_ie = wpa_bss_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_bss_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, bss->bssid) < 0)
ret = 0;
if (bss->beacon_ie_len) {
struct wpabuf *bcn_wps;
bcn_wps = wpa_bss_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;
struct wpabuf *wps_ie;
int ret = 0;
size_t i;
if (!eap_is_wps_pbc_enrollee(&ssid->eap))
return 0;
wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
"present in scan results; selected BSSID " MACSTR,
MAC2STR(selected->bssid));
if (!is_zero_ether_addr(ssid->bssid))
wpa_printf(MSG_DEBUG,
"WPS: Network profile limited to accept only a single BSSID " MACSTR,
MAC2STR(ssid->bssid));
/* 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);
wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
sel_uuid, UUID_LEN);
} else {
wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
"WPS IE?!");
sel_uuid = NULL;
}
for (i = 0; i < wpa_s->num_wps_ap; i++) {
struct wps_ap_info *ap = &wpa_s->wps_ap[i];
if (!ap->pbc_active ||
os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0)
continue;
if (!is_zero_ether_addr(ssid->bssid) &&
os_memcmp(ap->bssid, ssid->bssid, ETH_ALEN) != 0) {
wpa_printf(MSG_DEBUG, "WPS: Ignore another BSS " MACSTR
" in active PBC mode due to local BSSID limitation",
MAC2STR(ap->bssid));
continue;
}
wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
MACSTR, MAC2STR(ap->bssid));
wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
ap->uuid, UUID_LEN);
if (sel_uuid == NULL ||
os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) {
ret = 1; /* PBC overlap */
wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
MACSTR " and " MACSTR,
MAC2STR(selected->bssid),
MAC2STR(ap->bssid));
break;
}
/* TODO: verify that this is reasonable dual-band situation */
}
wpabuf_free(wps_ie);
return ret;
}
void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
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))
pbc++;
else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
auth++;
else if (wps_is_selected_pin_registrar(ie))
pin++;
else
wps++;
wpabuf_free(ie);
}
if (pbc)
wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
else if (auth)
wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
else if (pin)
wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
else if (wps)
wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
}
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 */
}
void 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 */
}
#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];
const u8 *use_uuid = NULL;
u8 addr_buf[ETH_ALEN];
if (os_strcmp(uuid, "any") == 0) {
} else if (uuid_str2bin(uuid, u) == 0) {
use_uuid = u;
} else if (hwaddr_aton(uuid, addr_buf) == 0) {
use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
if (use_uuid == NULL)
return -1;
} else
return -1;
return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
use_uuid,
(const u8 *) pin, os_strlen(pin), 300);
}
int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
{
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
return -1;
return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
}
int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
const char *pin)
{
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
return -1;
return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
os_strlen(pin));
}
static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
struct wps_credential *cred)
{
os_memset(cred, 0, sizeof(*cred));
if (ssid->ssid_len > SSID_MAX_LEN)
return -1;
os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
cred->ssid_len = ssid->ssid_len;
if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
cred->encr_type = WPS_ENCR_AES;
else
cred->encr_type = WPS_ENCR_TKIP;
if (ssid->passphrase) {
cred->key_len = os_strlen(ssid->passphrase);
if (cred->key_len >= 64)
return -1;
os_memcpy(cred->key, ssid->passphrase, cred->key_len);
} else if (ssid->psk_set) {
cred->key_len = 32;
os_memcpy(cred->key, ssid->psk, 32);
} else
return -1;
} else {
cred->auth_type = WPS_AUTH_OPEN;
cred->encr_type = WPS_ENCR_NONE;
}
return 0;
}
int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
int id)
{
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
struct wpa_ssid *ssid;
struct wps_credential cred;
int ret;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
return -1;
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL || ssid->ssid == NULL)
return -1;
if (wpas_wps_network_to_cred(ssid, &cred) < 0)
return -1;
ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
os_memset(&cred, 0, sizeof(cred));
return ret;
}
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], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
struct wps_credential cred;
size_t len;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
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;
#ifdef CONFIG_TESTING_OPTIONS
else if (os_strcmp(settings->encr, "WEP") == 0)
cred.encr_type = WPS_ENCR_WEP;
#endif /* CONFIG_TESTING_OPTIONS */
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, use_uuid, use_addr,
(const u8 *) pin, os_strlen(pin), &cred);
}
#ifdef CONFIG_WPS_NFC
struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
int ndef, const char *uuid)
{
struct wpabuf *ret;
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
if (!wpa_s->wps_er)
return NULL;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
return NULL;
ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
if (ndef && ret) {
struct wpabuf *tmp;
tmp = ndef_build_wifi(ret);
wpabuf_free(ret);
if (tmp == NULL)
return NULL;
ret = tmp;
}
return ret;
}
#endif /* CONFIG_WPS_NFC */
static int callbacks_pending = 0;
static void wpas_wps_terminate_cb(void *ctx)
{
wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
if (--callbacks_pending <= 0)
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) {
callbacks_pending++;
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;
}
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;
}
}
wps->config_methods = wps_fix_config_methods(wps->config_methods);
wps->dev.config_methods = wps->config_methods;
if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
WPS_DEV_TYPE_LEN);
if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
}
if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
wpas_wps_set_vendor_ext_m1(wpa_s, wps);
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)
wpas_wps_set_uuid(wpa_s, wps);
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;
}
}
void wpas_wps_update_mac_addr(struct wpa_supplicant *wpa_s)
{
struct wps_context *wps;
wps = wpa_s->wps;
if (wps)
os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
}
#ifdef CONFIG_WPS_NFC
#ifdef CONFIG_WPS_ER
static struct wpabuf *
wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
struct wpa_ssid *ssid)
{
struct wpabuf *ret;
struct wps_credential cred;
if (wpas_wps_network_to_cred(ssid, &cred) < 0)
return NULL;
ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
if (ndef && ret) {
struct wpabuf *tmp;
tmp = ndef_build_wifi(ret);
wpabuf_free(ret);
if (tmp == NULL)
return NULL;
ret = tmp;
}
return ret;
}
#endif /* CONFIG_WPS_ER */
struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
int ndef, const char *id_str)
{
#ifdef CONFIG_WPS_ER
if (id_str) {
int id;
char *end = NULL;
struct wpa_ssid *ssid;
id = strtol(id_str, &end, 10);
if (end && *end)
return NULL;
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL)
return NULL;
return wpas_wps_network_config_token(wpa_s, ndef, ssid);
}
#endif /* CONFIG_WPS_ER */
#ifdef CONFIG_AP
if (wpa_s->ap_iface)
return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
#endif /* CONFIG_AP */
return NULL;
}
struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
{
if (wpa_s->conf->wps_nfc_pw_from_config) {
return wps_nfc_token_build(ndef,
wpa_s->conf->wps_nfc_dev_pw_id,
wpa_s->conf->wps_nfc_dh_pubkey,
wpa_s->conf->wps_nfc_dev_pw);
}
return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
&wpa_s->conf->wps_nfc_dh_pubkey,
&wpa_s->conf->wps_nfc_dh_privkey,
&wpa_s->conf->wps_nfc_dev_pw);
}
int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
const u8 *bssid,
const struct wpabuf *dev_pw, u16 dev_pw_id,
int p2p_group, const u8 *peer_pubkey_hash,
const u8 *ssid, size_t ssid_len, int freq)
{
struct wps_context *wps = wpa_s->wps;
char pw[32 * 2 + 1];
if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
dev_pw = wpa_s->conf->wps_nfc_dev_pw;
dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
}
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
wpa_s->conf->wps_nfc_dh_privkey == NULL) {
wpa_printf(MSG_DEBUG, "WPS: Missing DH params - "
"cannot start NFC-triggered connection");
return -1;
}
if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - "
"cannot start NFC-triggered connection", dev_pw_id);
return -1;
}
dh5_free(wps->dh_ctx);
wpabuf_free(wps->dh_pubkey);
wpabuf_free(wps->dh_privkey);
wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
wps->dh_ctx = NULL;
wpabuf_free(wps->dh_pubkey);
wps->dh_pubkey = NULL;
wpabuf_free(wps->dh_privkey);
wps->dh_privkey = NULL;
wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key");
return -1;
}
wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
if (wps->dh_ctx == NULL) {
wpabuf_free(wps->dh_pubkey);
wps->dh_pubkey = NULL;
wpabuf_free(wps->dh_privkey);
wps->dh_privkey = NULL;
wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context");
return -1;
}
if (dev_pw) {
wpa_snprintf_hex_uppercase(pw, sizeof(pw),
wpabuf_head(dev_pw),
wpabuf_len(dev_pw));
}
return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid,
dev_pw ? pw : NULL,
p2p_group, dev_pw_id, peer_pubkey_hash,
ssid, ssid_len, freq);
}
static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
struct wps_parse_attr *attr)
{
/*
* Disable existing networks temporarily to allow the newly learned
* credential to be preferred. Enable the temporarily disabled networks
* after 10 seconds.
*/
wpas_wps_temp_disable(wpa_s, NULL);
eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
NULL);
if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
return -1;
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
return 0;
if (attr->ap_channel) {
u16 chan = WPA_GET_BE16(attr->ap_channel);
int freq = 0;
if (chan >= 1 && chan <= 13)
freq = 2407 + 5 * chan;
else if (chan == 14)
freq = 2484;
else if (chan >= 30)
freq = 5000 + 5 * chan;
if (freq) {
wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz",
chan, freq);
wpa_s->after_wps = 5;
wpa_s->wps_freq = freq;
}
}
wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
"based on the received credential added");
wpa_s->normal_scans = 0;
wpa_supplicant_reinit_autoscan(wpa_s);
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_req_scan(wpa_s, 0, 0);
return 0;
}
#ifdef CONFIG_WPS_ER
static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
struct wps_parse_attr *attr)
{
return wps_registrar_add_nfc_password_token(
wpa_s->wps->registrar, attr->oob_dev_password,
attr->oob_dev_password_len);
}
#endif /* CONFIG_WPS_ER */
static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
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.num_cred)
return wpas_wps_use_cred(wpa_s, &attr);
#ifdef CONFIG_WPS_ER
if (attr.oob_dev_password)
return wpas_wps_add_nfc_password_token(wpa_s, &attr);
#endif /* CONFIG_WPS_ER */
wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
return -1;
}
int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
const struct wpabuf *data, int forced_freq)
{
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) {
#ifdef CONFIG_P2P
tmp = ndef_parse_p2p(data);
if (tmp) {
ret = wpas_p2p_nfc_tag_process(wpa_s, tmp,
forced_freq);
wpabuf_free(tmp);
return ret;
}
#endif /* CONFIG_P2P */
wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
return -1;
}
wps = tmp;
}
ret = wpas_wps_nfc_tag_process(wpa_s, wps);
wpabuf_free(tmp);
return ret;
}
struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,
int ndef)
{
struct wpabuf *ret;
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
&wpa_s->conf->wps_nfc_dh_privkey) < 0)
return NULL;
ret = wps_build_nfc_handover_req(wpa_s->wps,
wpa_s->conf->wps_nfc_dh_pubkey);
if (ndef && ret) {
struct wpabuf *tmp;
tmp = ndef_build_wifi(ret);
wpabuf_free(ret);
if (tmp == NULL)
return NULL;
ret = tmp;
}
return ret;
}
#ifdef CONFIG_WPS_NFC
static struct wpabuf *
wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
const char *uuid)
{
#ifdef CONFIG_WPS_ER
struct wpabuf *ret;
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
struct wps_context *wps = wpa_s->wps;
if (wps == NULL)
return NULL;
if (uuid == NULL)
return NULL;
if (uuid_str2bin(uuid, u) == 0)
use_uuid = u;
else if (hwaddr_aton(uuid, addr) == 0)
use_addr = addr;
else
return NULL;
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) {
if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
&wpa_s->conf->wps_nfc_dh_privkey) < 0)
return NULL;
}
wpas_wps_nfc_clear(wps);
wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
wpas_wps_nfc_clear(wps);
return NULL;
}
ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid,
use_addr, wpa_s->conf->wps_nfc_dh_pubkey);
if (ndef && ret) {
struct wpabuf *tmp;
tmp = ndef_build_wifi(ret);
wpabuf_free(ret);
if (tmp == NULL)
return NULL;
ret = tmp;
}
return ret;
#else /* CONFIG_WPS_ER */
return NULL;
#endif /* CONFIG_WPS_ER */
}
#endif /* CONFIG_WPS_NFC */
struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
int ndef, int cr, const char *uuid)
{
struct wpabuf *ret;
if (!cr)
return NULL;
ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
if (ret)
return ret;
return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
}
static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
const struct wpabuf *data)
{
struct wpabuf *wps;
int ret = -1;
u16 wsc_len;
const u8 *pos;
struct wpabuf msg;
struct wps_parse_attr attr;
u16 dev_pw_id;
const u8 *bssid = NULL;
int freq = 0;
wps = ndef_parse_wifi(data);
if (wps == NULL)
return -1;
wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
"payload from NFC connection handover");
wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
if (wpabuf_len(wps) < 2) {
wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select "
"Message");
goto out;
}
pos = wpabuf_head(wps);
wsc_len = WPA_GET_BE16(pos);
if (wsc_len > wpabuf_len(wps) - 2) {
wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
"in Wi-Fi Handover Select Message", wsc_len);
goto out;
}
pos += 2;
wpa_hexdump(MSG_DEBUG,
"WPS: WSC attributes in Wi-Fi Handover Select Message",
pos, wsc_len);
if (wsc_len < wpabuf_len(wps) - 2) {
wpa_hexdump(MSG_DEBUG,
"WPS: Ignore extra data after WSC attributes",
pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
}
wpabuf_set(&msg, pos, wsc_len);
ret = wps_parse_msg(&msg, &attr);
if (ret < 0) {
wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
"Wi-Fi Handover Select Message");
goto out;
}
if (attr.oob_dev_password == NULL ||
attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
"included in Wi-Fi Handover Select Message");
ret = -1;
goto out;
}
if (attr.ssid == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover "
"Select Message");
ret = -1;
goto out;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len);
if (attr.mac_addr) {
bssid = attr.mac_addr;
wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR,
MAC2STR(bssid));
}
if (attr.rf_bands)
wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands);
if (attr.ap_channel) {
u16 chan = WPA_GET_BE16(attr.ap_channel);
wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan);
if (chan >= 1 && chan <= 13 &&
(attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ))
freq = 2407 + 5 * chan;
else if (chan == 14 &&
(attr.rf_bands == NULL ||
*attr.rf_bands & WPS_RF_24GHZ))
freq = 2484;
else if (chan >= 30 &&
(attr.rf_bands == NULL ||
*attr.rf_bands & WPS_RF_50GHZ))
freq = 5000 + 5 * chan;
else if (chan >= 1 && chan <= 6 &&
(attr.rf_bands == NULL ||
*attr.rf_bands & WPS_RF_60GHZ))
freq = 56160 + 2160 * chan;
if (freq) {
wpa_printf(MSG_DEBUG,
"WPS: AP indicated channel %u -> %u MHz",
chan, freq);
}
}
wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
attr.oob_dev_password, attr.oob_dev_password_len);
dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
WPS_OOB_PUBKEY_HASH_LEN);
if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
"%u in Wi-Fi Handover Select Message", dev_pw_id);
ret = -1;
goto out;
}
wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash",
attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0,
attr.oob_dev_password,
attr.ssid, attr.ssid_len, freq);
out:
wpabuf_free(wps);
return ret;
}
int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
const struct wpabuf *req,
const struct wpabuf *sel)
{
wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
}
int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
const struct wpabuf *req,
const struct wpabuf *sel)
{
struct wpabuf *wps;
int ret = -1;
u16 wsc_len;
const u8 *pos;
struct wpabuf msg;
struct wps_parse_attr attr;
u16 dev_pw_id;
/*
* Enrollee/station is always initiator of the NFC connection handover,
* so use the request message here to find Enrollee public key hash.
*/
wps = ndef_parse_wifi(req);
if (wps == NULL)
return -1;
wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
"payload from NFC connection handover");
wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
if (wpabuf_len(wps) < 2) {
wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
"Message");
goto out;
}
pos = wpabuf_head(wps);
wsc_len = WPA_GET_BE16(pos);
if (wsc_len > wpabuf_len(wps) - 2) {
wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
"in rt Wi-Fi Handover Request Message", wsc_len);
goto out;
}
pos += 2;
wpa_hexdump(MSG_DEBUG,
"WPS: WSC attributes in Wi-Fi Handover Request Message",
pos, wsc_len);
if (wsc_len < wpabuf_len(wps) - 2) {
wpa_hexdump(MSG_DEBUG,
"WPS: Ignore extra data after WSC attributes",
pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
}
wpabuf_set(&msg, pos, wsc_len);
ret = wps_parse_msg(&msg, &attr);
if (ret < 0) {
wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
"Wi-Fi Handover Request Message");
goto out;
}
if (attr.oob_dev_password == NULL ||
attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
"included in Wi-Fi Handover Request Message");
ret = -1;
goto out;
}
if (attr.uuid_e == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
"Handover Request Message");
ret = -1;
goto out;
}
wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
attr.oob_dev_password, attr.oob_dev_password_len);
dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
WPS_OOB_PUBKEY_HASH_LEN);
if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
"%u in Wi-Fi Handover Request Message", dev_pw_id);
ret = -1;
goto out;
}
wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar,
attr.oob_dev_password,
DEV_PW_NFC_CONNECTION_HANDOVER,
NULL, 0, 1);
out:
wpabuf_free(wps);
return ret;
}
#endif /* CONFIG_WPS_NFC */
static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
{
size_t i;
struct os_reltime now;
if (wpa_debug_level > MSG_DEBUG)
return;
if (wpa_s->wps_ap == NULL)
return;
os_get_reltime(&now);
for (i = 0; i < wpa_s->num_wps_ap; i++) {
struct wps_ap_info *ap = &wpa_s->wps_ap[i];
struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
"tries=%d last_attempt=%d sec ago blacklist=%d",
(int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
ap->last_attempt.sec > 0 ?
(int) now.sec - (int) ap->last_attempt.sec : -1,
e ? e->count : 0);
}
}
static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
const u8 *bssid)
{
size_t i;
if (wpa_s->wps_ap == NULL)
return NULL;
for (i = 0; i < wpa_s->num_wps_ap; i++) {
struct wps_ap_info *ap = &wpa_s->wps_ap[i];
if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
return ap;
}
return NULL;
}
static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
struct wpa_scan_res *res)
{
struct wpabuf *wps;
enum wps_ap_info_type type;
struct wps_ap_info *ap;
int r, pbc_active;
const u8 *uuid;
if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
return;
wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
if (wps == NULL)
return;
r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
if (r == 2)
type = WPS_AP_SEL_REG_OUR;
else if (r == 1)
type = WPS_AP_SEL_REG;
else
type = WPS_AP_NOT_SEL_REG;
uuid = wps_get_uuid_e(wps);
pbc_active = wps_is_selected_pbc_registrar(wps);
ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
if (ap) {
if (ap->type != type) {
wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
" changed type %d -> %d",
MAC2STR(res->bssid), ap->type, type);
ap->type = type;
if (type != WPS_AP_NOT_SEL_REG)
wpa_blacklist_del(wpa_s, ap->bssid);
}
ap->pbc_active = pbc_active;
if (uuid)
os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
goto out;
}
ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
sizeof(struct wps_ap_info));
if (ap == NULL)
goto out;
wpa_s->wps_ap = ap;
ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
wpa_s->num_wps_ap++;
os_memset(ap, 0, sizeof(*ap));
os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
ap->type = type;
ap->pbc_active = pbc_active;
if (uuid)
os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
MAC2STR(ap->bssid), ap->type);
out:
wpabuf_free(wps);
}
void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res)
{
size_t i;
for (i = 0; i < scan_res->num; i++)
wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
wpas_wps_dump_ap_info(wpa_s);
}
void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
{
struct wps_ap_info *ap;
wpa_s->after_wps = 0;
if (!wpa_s->wps_ap_iter)
return;
ap = wpas_wps_get_ap_info(wpa_s, bssid);
if (ap == NULL)
return;
ap->tries++;
os_get_reltime(&ap->last_attempt);
}
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