/*
* Wi-Fi Protected Setup - device attributes
* Copyright (c) 2008, 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 "wps_i.h"
#include "wps_dev_attr.h"
int wps_build_manufacturer(struct wps_device_data *dev, struct wpabuf *msg)
{
size_t len;
wpa_printf(MSG_DEBUG, "WPS: * Manufacturer");
wpabuf_put_be16(msg, ATTR_MANUFACTURER);
len = dev->manufacturer ? os_strlen(dev->manufacturer) : 0;
#ifndef CONFIG_WPS_STRICT
if (len == 0) {
/*
* Some deployed WPS implementations fail to parse zero-length
* attributes. As a workaround, send a space character if the
* device attribute string is empty.
*/
wpabuf_put_be16(msg, 1);
wpabuf_put_u8(msg, ' ');
return 0;
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_put_be16(msg, len);
wpabuf_put_data(msg, dev->manufacturer, len);
return 0;
}
int wps_build_model_name(struct wps_device_data *dev, struct wpabuf *msg)
{
size_t len;
wpa_printf(MSG_DEBUG, "WPS: * Model Name");
wpabuf_put_be16(msg, ATTR_MODEL_NAME);
len = dev->model_name ? os_strlen(dev->model_name) : 0;
#ifndef CONFIG_WPS_STRICT
if (len == 0) {
/*
* Some deployed WPS implementations fail to parse zero-length
* attributes. As a workaround, send a space character if the
* device attribute string is empty.
*/
wpabuf_put_be16(msg, 1);
wpabuf_put_u8(msg, ' ');
return 0;
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_put_be16(msg, len);
wpabuf_put_data(msg, dev->model_name, len);
return 0;
}
int wps_build_model_number(struct wps_device_data *dev, struct wpabuf *msg)
{
size_t len;
wpa_printf(MSG_DEBUG, "WPS: * Model Number");
wpabuf_put_be16(msg, ATTR_MODEL_NUMBER);
len = dev->model_number ? os_strlen(dev->model_number) : 0;
#ifndef CONFIG_WPS_STRICT
if (len == 0) {
/*
* Some deployed WPS implementations fail to parse zero-length
* attributes. As a workaround, send a space character if the
* device attribute string is empty.
*/
wpabuf_put_be16(msg, 1);
wpabuf_put_u8(msg, ' ');
return 0;
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_put_be16(msg, len);
wpabuf_put_data(msg, dev->model_number, len);
return 0;
}
int wps_build_serial_number(struct wps_device_data *dev, struct wpabuf *msg)
{
size_t len;
wpa_printf(MSG_DEBUG, "WPS: * Serial Number");
wpabuf_put_be16(msg, ATTR_SERIAL_NUMBER);
len = dev->serial_number ? os_strlen(dev->serial_number) : 0;
#ifndef CONFIG_WPS_STRICT
if (len == 0) {
/*
* Some deployed WPS implementations fail to parse zero-length
* attributes. As a workaround, send a space character if the
* device attribute string is empty.
*/
wpabuf_put_be16(msg, 1);
wpabuf_put_u8(msg, ' ');
return 0;
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_put_be16(msg, len);
wpabuf_put_data(msg, dev->serial_number, len);
return 0;
}
int wps_build_primary_dev_type(struct wps_device_data *dev, struct wpabuf *msg)
{
wpa_printf(MSG_DEBUG, "WPS: * Primary Device Type");
wpabuf_put_be16(msg, ATTR_PRIMARY_DEV_TYPE);
wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN);
wpabuf_put_data(msg, dev->pri_dev_type, WPS_DEV_TYPE_LEN);
return 0;
}
int wps_build_secondary_dev_type(struct wps_device_data *dev,
struct wpabuf *msg)
{
if (!dev->num_sec_dev_types)
return 0;
wpa_printf(MSG_DEBUG, "WPS: * Secondary Device Type");
wpabuf_put_be16(msg, ATTR_SECONDARY_DEV_TYPE_LIST);
wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN * dev->num_sec_dev_types);
wpabuf_put_data(msg, dev->sec_dev_type,
WPS_DEV_TYPE_LEN * dev->num_sec_dev_types);
return 0;
}
int wps_build_req_dev_type(struct wps_device_data *dev, struct wpabuf *msg,
unsigned int num_req_dev_types,
const u8 *req_dev_types)
{
unsigned int i;
for (i = 0; i < num_req_dev_types; i++) {
wpa_hexdump(MSG_DEBUG, "WPS: * Requested Device Type",
req_dev_types + i * WPS_DEV_TYPE_LEN,
WPS_DEV_TYPE_LEN);
wpabuf_put_be16(msg, ATTR_REQUESTED_DEV_TYPE);
wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN);
wpabuf_put_data(msg, req_dev_types + i * WPS_DEV_TYPE_LEN,
WPS_DEV_TYPE_LEN);
}
return 0;
}
int wps_build_dev_name(struct wps_device_data *dev, struct wpabuf *msg)
{
size_t len;
wpa_printf(MSG_DEBUG, "WPS: * Device Name");
wpabuf_put_be16(msg, ATTR_DEV_NAME);
len = dev->device_name ? os_strlen(dev->device_name) : 0;
#ifndef CONFIG_WPS_STRICT
if (len == 0) {
/*
* Some deployed WPS implementations fail to parse zero-length
* attributes. As a workaround, send a space character if the
* device attribute string is empty.
*/
wpabuf_put_be16(msg, 1);
wpabuf_put_u8(msg, ' ');
return 0;
}
#endif /* CONFIG_WPS_STRICT */
wpabuf_put_be16(msg, len);
wpabuf_put_data(msg, dev->device_name, len);
return 0;
}
int wps_build_device_attrs(struct wps_device_data *dev, struct wpabuf *msg)
{
if (wps_build_manufacturer(dev, msg) ||
wps_build_model_name(dev, msg) ||
wps_build_model_number(dev, msg) ||
wps_build_serial_number(dev, msg) ||
wps_build_primary_dev_type(dev, msg) ||
wps_build_dev_name(dev, msg))
return -1;
return 0;
}
int wps_build_os_version(struct wps_device_data *dev, struct wpabuf *msg)
{
wpa_printf(MSG_DEBUG, "WPS: * OS Version");
wpabuf_put_be16(msg, ATTR_OS_VERSION);
wpabuf_put_be16(msg, 4);
wpabuf_put_be32(msg, 0x80000000 | dev->os_version);
return 0;
}
int wps_build_vendor_ext_m1(struct wps_device_data *dev, struct wpabuf *msg)
{
if (dev->vendor_ext_m1 != NULL) {
wpa_hexdump(MSG_DEBUG, "WPS: * Vendor Extension M1",
wpabuf_head_u8(dev->vendor_ext_m1),
wpabuf_len(dev->vendor_ext_m1));
wpabuf_put_be16(msg, ATTR_VENDOR_EXT);
wpabuf_put_be16(msg, wpabuf_len(dev->vendor_ext_m1));
wpabuf_put_buf(msg, dev->vendor_ext_m1);
}
return 0;
}
int wps_build_rf_bands(struct wps_device_data *dev, struct wpabuf *msg,
u8 rf_band)
{
return wps_build_rf_bands_attr(msg, rf_band ? rf_band : dev->rf_bands);
}
int wps_build_vendor_ext(struct wps_device_data *dev, struct wpabuf *msg)
{
int i;
for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
if (dev->vendor_ext[i] == NULL)
continue;
wpa_hexdump(MSG_DEBUG, "WPS: * Vendor Extension",
wpabuf_head_u8(dev->vendor_ext[i]),
wpabuf_len(dev->vendor_ext[i]));
wpabuf_put_be16(msg, ATTR_VENDOR_EXT);
wpabuf_put_be16(msg, wpabuf_len(dev->vendor_ext[i]));
wpabuf_put_buf(msg, dev->vendor_ext[i]);
}
return 0;
}
static int wps_process_manufacturer(struct wps_device_data *dev, const u8 *str,
size_t str_len)
{
if (str == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Manufacturer received");
return -1;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Manufacturer", str, str_len);
os_free(dev->manufacturer);
dev->manufacturer = dup_binstr(str, str_len);
if (dev->manufacturer == NULL)
return -1;
return 0;
}
static int wps_process_model_name(struct wps_device_data *dev, const u8 *str,
size_t str_len)
{
if (str == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Model Name received");
return -1;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Name", str, str_len);
os_free(dev->model_name);
dev->model_name = dup_binstr(str, str_len);
if (dev->model_name == NULL)
return -1;
return 0;
}
static int wps_process_model_number(struct wps_device_data *dev, const u8 *str,
size_t str_len)
{
if (str == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Model Number received");
return -1;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Number", str, str_len);
os_free(dev->model_number);
dev->model_number = dup_binstr(str, str_len);
if (dev->model_number == NULL)
return -1;
return 0;
}
static int wps_process_serial_number(struct wps_device_data *dev,
const u8 *str, size_t str_len)
{
if (str == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Serial Number received");
return -1;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Serial Number", str, str_len);
os_free(dev->serial_number);
dev->serial_number = dup_binstr(str, str_len);
if (dev->serial_number == NULL)
return -1;
return 0;
}
static int wps_process_dev_name(struct wps_device_data *dev, const u8 *str,
size_t str_len)
{
if (str == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Device Name received");
return -1;
}
wpa_hexdump_ascii(MSG_DEBUG, "WPS: Device Name", str, str_len);
os_free(dev->device_name);
dev->device_name = dup_binstr(str, str_len);
if (dev->device_name == NULL)
return -1;
return 0;
}
static int wps_process_primary_dev_type(struct wps_device_data *dev,
const u8 *dev_type)
{
#ifndef CONFIG_NO_STDOUT_DEBUG
char devtype[WPS_DEV_TYPE_BUFSIZE];
#endif /* CONFIG_NO_STDOUT_DEBUG */
if (dev_type == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Primary Device Type received");
return -1;
}
os_memcpy(dev->pri_dev_type, dev_type, WPS_DEV_TYPE_LEN);
wpa_printf(MSG_DEBUG, "WPS: Primary Device Type: %s",
wps_dev_type_bin2str(dev->pri_dev_type, devtype,
sizeof(devtype)));
return 0;
}
int wps_process_device_attrs(struct wps_device_data *dev,
struct wps_parse_attr *attr)
{
if (wps_process_manufacturer(dev, attr->manufacturer,
attr->manufacturer_len) ||
wps_process_model_name(dev, attr->model_name,
attr->model_name_len) ||
wps_process_model_number(dev, attr->model_number,
attr->model_number_len) ||
wps_process_serial_number(dev, attr->serial_number,
attr->serial_number_len) ||
wps_process_primary_dev_type(dev, attr->primary_dev_type) ||
wps_process_dev_name(dev, attr->dev_name, attr->dev_name_len))
return -1;
return 0;
}
int wps_process_os_version(struct wps_device_data *dev, const u8 *ver)
{
if (ver == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No OS Version received");
return -1;
}
dev->os_version = WPA_GET_BE32(ver);
wpa_printf(MSG_DEBUG, "WPS: OS Version %08x", dev->os_version);
return 0;
}
int wps_process_rf_bands(struct wps_device_data *dev, const u8 *bands)
{
if (bands == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No RF Bands received");
return -1;
}
dev->rf_bands = *bands;
wpa_printf(MSG_DEBUG, "WPS: Enrollee RF Bands 0x%x", dev->rf_bands);
return 0;
}
void wps_device_data_free(struct wps_device_data *dev)
{
os_free(dev->device_name);
dev->device_name = NULL;
os_free(dev->manufacturer);
dev->manufacturer = NULL;
os_free(dev->model_name);
dev->model_name = NULL;
os_free(dev->model_number);
dev->model_number = NULL;
os_free(dev->serial_number);
dev->serial_number = NULL;
}