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RIOT/sys/suit/conditions.c
2020-10-23 11:27:48 +02:00

68 lines
1.6 KiB
C

/*
* Copyright (C) 2019 Koen Zandberg
* 2019 Inria
* 2019 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup sys_suit
* @{
*
* @file
* @brief SUIT condition initializers
*
* @author Koen Zandberg <koen@bergzand.net>
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @}
*/
#include <string.h>
#include "suit/conditions.h"
#include "uuid.h"
#include "luid.h"
#define ENABLE_DEBUG 0
#include "debug.h"
#define SUIT_DEVID_BYTES 32
static suit_condition_params_t _conditions;
void suit_init_conditions(void)
{
/* Generate UUID's following the instructions from
* https://tools.ietf.org/html/draft-moran-suit-manifest-03#section-7.7.1
*/
uuid_v5(&_conditions.vendor, &uuid_namespace_dns,
(uint8_t *)SUIT_VENDOR_DOMAIN, strlen(SUIT_VENDOR_DOMAIN));
uuid_v5(&_conditions.class, &_conditions.vendor, (uint8_t *)SUIT_CLASS_ID,
strlen(SUIT_CLASS_ID));
uint8_t devid[SUIT_DEVID_BYTES];
/* Use luid_base to ensure an identical ID independent of previous luid
* calls */
luid_base(devid, SUIT_DEVID_BYTES);
uuid_v5(&_conditions.device, &_conditions.vendor, devid, SUIT_DEVID_BYTES);
}
uuid_t *suit_get_vendor_id(void)
{
return &_conditions.vendor;
}
uuid_t *suit_get_class_id(void)
{
return &_conditions.class;
}
uuid_t *suit_get_device_id(void)
{
return &_conditions.device;
}