u-boot/tools/fit_check_sign.c
Heiko Schocher 29a23f9d6c tools, fit_check_sign: verify a signed fit image
add host tool "fit_check_sign" which verifies, if a fit image is
signed correct.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
2014-03-21 16:40:38 -04:00

85 lines
1.7 KiB
C

/*
* (C) Copyright 2014
* DENX Software Engineering
* Heiko Schocher <hs@denx.de>
*
* Based on:
* (C) Copyright 2008 Semihalf
*
* (C) Copyright 2000-2004
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
*
* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
* FIT image specific code abstracted from mkimage.c
* some functions added to address abstraction
*
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "mkimage.h"
#include "fit_common.h"
#include <image.h>
#include <u-boot/crc.h>
void usage(char *cmdname)
{
fprintf(stderr, "Usage: %s -f fit file -k key file\n"
" -f ==> set fit file which should be checked'\n"
" -k ==> set key file which contains the key'\n",
cmdname);
exit(EXIT_FAILURE);
}
int main(int argc, char **argv)
{
int ffd = -1;
int kfd = -1;
struct stat fsbuf;
struct stat ksbuf;
void *fit_blob;
char *fdtfile = NULL;
char *keyfile = NULL;
char cmdname[50];
int ret;
void *key_blob;
int c;
strcpy(cmdname, *argv);
while ((c = getopt(argc, argv, "f:k:")) != -1)
switch (c) {
case 'f':
fdtfile = optarg;
break;
case 'k':
keyfile = optarg;
break;
default:
usage(cmdname);
break;
}
ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
if (ffd < 0)
return EXIT_FAILURE;
kfd = mmap_fdt(cmdname, keyfile, &key_blob, &ksbuf, 0);
if (ffd < 0)
return EXIT_FAILURE;
image_set_host_blob(key_blob);
ret = fit_check_sign(fit_blob, key_blob);
if (ret)
ret = EXIT_SUCCESS;
else
ret = EXIT_FAILURE;
(void) munmap((void *)fit_blob, fsbuf.st_size);
(void) munmap((void *)key_blob, ksbuf.st_size);
close(ffd);
close(kfd);
exit(ret);
}