u-boot/lib/hash-checksum.c
Alexandru Gagniuc 0bcb28dfb9 lib: Rename rsa-checksum.c to hash-checksum.c
rsa-checksum.c sontains the hash_calculate() implementations. Despite
the "rsa-" file prefix, this function is useful for other algorithms.

To prevent confusion, move this file to lib/, and rename it to
hash-checksum.c, to give it a more "generic" feel.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-14 15:06:08 -04:00

52 lines
996 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013, Andreas Oetken.
*/
#ifndef USE_HOSTCC
#include <common.h>
#include <fdtdec.h>
#include <asm/byteorder.h>
#include <linux/errno.h>
#include <asm/unaligned.h>
#include <hash.h>
#else
#include "fdt_host.h"
#endif
#include <hash.h>
#include <image.h>
int hash_calculate(const char *name,
const struct image_region region[],
int region_count, uint8_t *checksum)
{
struct hash_algo *algo;
int ret = 0;
void *ctx;
uint32_t i;
i = 0;
ret = hash_progressive_lookup_algo(name, &algo);
if (ret)
return ret;
ret = algo->hash_init(algo, &ctx);
if (ret)
return ret;
for (i = 0; i < region_count - 1; i++) {
ret = algo->hash_update(algo, ctx, region[i].data,
region[i].size, 0);
if (ret)
return ret;
}
ret = algo->hash_update(algo, ctx, region[i].data, region[i].size, 1);
if (ret)
return ret;
ret = algo->hash_finish(algo, ctx, checksum, algo->digest_size);
if (ret)
return ret;
return 0;
}