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/*
* Copyright 2018 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.
*
* All hacks to enable building firmware updater on old branches.
*/
#ifndef VBOOT_REFERENCE_FUTILITY_UPDATER_COMPAT_H_
#define VBOOT_REFERENCE_FUTILITY_UPDATER_COMPAT_H_
#define _STUB_IMPLEMENTATION_
#include <stdio.h>
#include <unistd.h>
#include "2sysincludes.h"
#include "2rsa.h"
#include "2sha.h"
#include "vb2_struct.h"
#include "host_key.h"
#include "vboot_api.h"
struct vb2_packed_key;
static inline int packed_key_looks_ok(
const struct vb2_packed_key *key, uint32_t size)
{
VbPublicKey *pub = (VbPublicKey *)key;
return PublicKeyLooksOkay(pub, size);
}
static inline const char *packed_key_sha1_string(
const struct vb2_packed_key *key)
{
static char dest[VB2_SHA1_DIGEST_SIZE * 2 + 1];
uint8_t *input = ((uint8_t *)key) + key->key_offset;
uint32_t inlen = key->key_size;
uint8_t *digest = DigestBuf(input, inlen, SHA1_DIGEST_ALGORITHM);
char *dnext = dest;
int i;
for (i = 0; i < SHA1_DIGEST_SIZE; i++)
dnext += sprintf(dnext, "%02x", digest[i]);
VbExFree(digest);
return dest;
}
static inline int vb2_read_file(
const char *filename, uint8_t **data_ptr, uint32_t *size_ptr)
{
FILE *f;
uint8_t *buf;
long size;
*data_ptr = NULL;
*size_ptr = 0;
f = fopen(filename, "rb");
if (!f) {
return 1;
}
fseek(f, 0, SEEK_END);
size = ftell(f);
rewind(f);
if (size < 0 || size > UINT32_MAX) {
fclose(f);
return 1;
}
buf = malloc(size);
if (!buf) {
fclose(f);
return 1;
}
if(1 != fread(buf, size, 1, f)) {
fclose(f);
free(buf);
return 1;
}
fclose(f);
*data_ptr = buf;
*size_ptr = size;
return 0;
}
static inline int vb2_write_file(
const char *filename, const void *buf, uint32_t size)
{
FILE *f = fopen(filename, "wb");
if (!f) {
return 1;
}
if (1 != fwrite(buf, size, 1, f)) {
fclose(f);
unlink(filename); /* Delete any partial file */
return 1;
}
fclose(f);
return 0;
}
#define vb2_unpack_key2(key, packed_key) \
vb2_unpack_key(key, (const uint8_t *)packed_key, \
packed_key->key_offset + packed_key->key_size)
#endif /* VBOOT_REFERENCE_FUTILITY_UPDATER_COMPAT_H_ */
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