/* * 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; }