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WPS ER: Add support for building NFC configuration token

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WPS_ER_NFC_CONFIG_TOKEN command can now be used to build a NFC
configuration token based on AP Settings learnt with WPS_ER_LEARN
or set with WPS_ER_CONFIG.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-06-28 16:35:51 +03:00
parent 71892384da
commit 1cea09a9e2
6 changed files with 145 additions and 3 deletions
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1
src/wps/wps.h
View file

@ -835,6 +835,7 @@ int wps_er_set_config(struct wps_er *er, const u8 *uuid,
const struct wps_credential *cred);
int wps_er_config(struct wps_er *er, const u8 *uuid, const u8 *pin,
size_t pin_len, const struct wps_credential *cred);
struct wpabuf * wps_er_nfc_config_token(struct wps_er *er, const u8 *uuid);
int wps_dev_type_str2bin(const char *str, u8 dev_type[WPS_DEV_TYPE_LEN]);
char * wps_dev_type_bin2str(const u8 dev_type[WPS_DEV_TYPE_LEN], char *buf,

40
src/wps/wps_er.c
View file

@ -1,6 +1,6 @@
/*
* Wi-Fi Protected Setup - External Registrar
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
* Copyright (c) 2009-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@ -1996,3 +1996,41 @@ int wps_er_config(struct wps_er *er, const u8 *uuid, const u8 *pin,
return 0;
}
#ifdef CONFIG_WPS_NFC
struct wpabuf * wps_er_nfc_config_token(struct wps_er *er, const u8 *uuid)
{
struct wps_er_ap *ap;
struct wpabuf *ret;
struct wps_data data;
if (er == NULL)
return NULL;
ap = wps_er_ap_get(er, NULL, uuid);
if (ap == NULL)
return NULL;
if (ap->ap_settings == NULL) {
wpa_printf(MSG_DEBUG, "WPS ER: No settings known for the "
"selected AP");
return NULL;
}
ret = wpabuf_alloc(500);
if (ret == NULL)
return NULL;
os_memset(&data, 0, sizeof(data));
data.wps = er->wps;
data.use_cred = ap->ap_settings;
if (wps_build_version(ret) ||
wps_build_cred(&data, ret) ||
wps_build_wfa_ext(ret, 0, NULL, 0)) {
wpabuf_free(ret);
return NULL;
}
return ret;
}
#endif /* CONFIG_WPS_NFC */

44
wpa_supplicant/ctrl_iface.c
View file

@ -1,6 +1,6 @@
/*
* WPA Supplicant / Control interface (shared code for all backends)
* Copyright (c) 2004-2010, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@ -892,6 +892,43 @@ static int wpa_supplicant_ctrl_iface_wps_er_config(
ap.key_hex = new_key;
return wpas_wps_er_config(wpa_s, cmd, pin, &ap);
}
#ifdef CONFIG_WPS_NFC
static int wpa_supplicant_ctrl_iface_wps_er_nfc_config_token(
struct wpa_supplicant *wpa_s, char *cmd, char *reply, size_t max_len)
{
int ndef;
struct wpabuf *buf;
int res;
char *uuid;
uuid = os_strchr(cmd, ' ');
if (uuid == NULL)
return -1;
*uuid++ = '\0';
if (os_strcmp(cmd, "WPS") == 0)
ndef = 0;
else if (os_strcmp(cmd, "NDEF") == 0)
ndef = 1;
else
return -1;
buf = wpas_wps_er_nfc_config_token(wpa_s, ndef, uuid);
if (buf == NULL)
return -1;
res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
wpabuf_len(buf));
reply[res++] = '\n';
reply[res] = '\0';
wpabuf_free(buf);
return res;
}
#endif /* CONFIG_WPS_NFC */
#endif /* CONFIG_WPS_ER */
#endif /* CONFIG_WPS */
@ -4182,6 +4219,11 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
} else if (os_strncmp(buf, "WPS_ER_CONFIG ", 14) == 0) {
if (wpa_supplicant_ctrl_iface_wps_er_config(wpa_s, buf + 14))
reply_len = -1;
#ifdef CONFIG_WPS_NFC
} else if (os_strncmp(buf, "WPS_ER_NFC_CONFIG_TOKEN ", 24) == 0) {
reply_len = wpa_supplicant_ctrl_iface_wps_er_nfc_config_token(
wpa_s, buf + 24, reply, reply_size);
#endif /* CONFIG_WPS_NFC */
#endif /* CONFIG_WPS_ER */
#endif /* CONFIG_WPS */
#ifdef CONFIG_IBSS_RSN

33
wpa_supplicant/wpa_cli.c
View file

@ -1,6 +1,6 @@
/*
* WPA Supplicant - command line interface for wpa_supplicant daemon
* Copyright (c) 2004-2011, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@ -1175,6 +1175,32 @@ static int wpa_cli_cmd_wps_er_config(struct wpa_ctrl *ctrl, int argc,
}
#ifdef CONFIG_WPS_NFC
static int wpa_cli_cmd_wps_er_nfc_config_token(struct wpa_ctrl *ctrl, int argc,
char *argv[])
{
char cmd[256];
int res;
if (argc != 2) {
printf("Invalid WPS_ER_NFC_CONFIG_TOKEN command: need two "
"arguments:\n"
"- WPS/NDEF: token format\n"
"- UUID: specify which AP to use\n");
return -1;
}
res = os_snprintf(cmd, sizeof(cmd), "WPS_ER_NFC_CONFIG_TOKEN %s %s",
argv[0], argv[1]);
if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
printf("Too long WPS_ER_NFC_CONFIG_TOKEN command.\n");
return -1;
}
return wpa_ctrl_command(ctrl, cmd);
}
#endif /* CONFIG_WPS_NFC */
static int wpa_cli_cmd_ibss_rsn(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
char cmd[256];
@ -3152,6 +3178,11 @@ static struct wpa_cli_cmd wpa_cli_commands[] = {
{ "wps_er_config", wpa_cli_cmd_wps_er_config,
cli_cmd_flag_sensitive,
"<UUID> <PIN> <SSID> <auth> <encr> <key> = configure AP" },
#ifdef CONFIG_WPS_NFC
{ "wps_er_nfc_config_token", wpa_cli_cmd_wps_er_nfc_config_token,
cli_cmd_flag_none,
"<WPS/NDEF> <UUID> = build NFC configuration token" },
#endif /* CONFIG_WPS_NFC */
{ "ibss_rsn", wpa_cli_cmd_ibss_rsn,
cli_cmd_flag_none,
"<addr> = request RSN authentication with <addr> in IBSS" },

28
wpa_supplicant/wps_supplicant.c
View file

@ -1674,6 +1674,34 @@ int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
}
#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];
if (!wpa_s->wps_er)
return NULL;
if (uuid_str2bin(uuid, u))
return NULL;
ret = wps_er_nfc_config_token(wpa_s->wps_er, u);
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)

2
wpa_supplicant/wps_supplicant.h
View file

@ -59,6 +59,8 @@ int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
int id);
int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
const char *pin, struct wps_new_ap_settings *settings);
struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
int ndef, const char *uuid);
int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s);
int wpas_wps_in_progress(struct wpa_supplicant *wpa_s);
void wpas_wps_update_config(struct wpa_supplicant *wpa_s);