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/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Convert structs from vboot1 data format to new vboot2 structs
*/
#include "2sysincludes.h"
#include "2common.h"
#include "2rsa.h"
#include "vb2_convert_structs.h"
#include "vboot_struct.h" /* For old struct sizes */
#include "test_common.h"
struct vb2_packed_key2 *vb2_convert_packed_key2(
const struct vb2_packed_key *key,
const char *desc, uint32_t *out_size)
{
struct vb2_packed_key2 k2 = {
.c.magic = VB2_MAGIC_PACKED_KEY2,
.c.struct_version_major = VB2_PACKED_KEY2_VERSION_MAJOR,
.c.struct_version_minor = VB2_PACKED_KEY2_VERSION_MINOR,
};
uint8_t *kbuf;
/* Calculate description size */
k2.c.desc_offset = sizeof(k2);
k2.c.desc_size = roundup32(strlen(desc) + 1);
/* Copy/initialize fields */
k2.key_offset = k2.c.desc_offset + k2.c.desc_size;
k2.key_size = key->key_size;
k2.key_version = key->key_version;
k2.sig_algorithm = vb2_crypto_to_signature(key->algorithm);
k2.hash_algorithm = vb2_crypto_to_hash(key->algorithm);
/* TODO: fill in a non-zero GUID */
/* Allocate the new buffer */
*out_size = k2.key_offset + k2.key_size;
kbuf = malloc(*out_size);
memset(kbuf, 0, *out_size);
/* Copy data into the buffer */
memcpy(kbuf, &k2, sizeof(k2));
/* strcpy() is safe because we allocated above based on strlen() */
strcpy((char *)(kbuf + k2.c.desc_offset), desc);
kbuf[k2.c.desc_offset + k2.c.desc_size - 1] = 0;
memcpy(kbuf + k2.key_offset,
(const uint8_t *)key + key->key_offset,
key->key_size);
/* Return the newly allocated buffer */
return (struct vb2_packed_key2 *)kbuf;
}
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