1 /*
2 * Copyright (c) 2012 The Chromium OS Authors.
3 *
4 * (C) Copyright 2011
5 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
6 *
7 * (C) Copyright 2000
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 *
10 * SPDX-License-Identifier: GPL-2.0+
11 */
12
13 #include <common.h>
14 #include <command.h>
15 #include <hash.h>
16 #include <linux/ctype.h>
17
do_hash(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])18 static int do_hash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
19 {
20 char *s;
21 int flags = HASH_FLAG_ENV;
22
23 #ifdef CONFIG_HASH_VERIFY
24 if (argc < 4)
25 return CMD_RET_USAGE;
26 if (!strcmp(argv[1], "-v")) {
27 flags |= HASH_FLAG_VERIFY;
28 argc--;
29 argv++;
30 }
31 #endif
32 /* Move forward to 'algorithm' parameter */
33 argc--;
34 argv++;
35 for (s = *argv; *s; s++)
36 *s = tolower(*s);
37 return hash_command(*argv, flags, cmdtp, flag, argc - 1, argv + 1);
38 }
39
40 #ifdef CONFIG_HASH_VERIFY
41 #define HARGS 6
42 #else
43 #define HARGS 5
44 #endif
45
46 U_BOOT_CMD(
47 hash, HARGS, 1, do_hash,
48 "compute hash message digest",
49 "algorithm address count [[*]hash_dest]\n"
50 " - compute message digest [save to env var / *address]"
51 #ifdef CONFIG_HASH_VERIFY
52 "\nhash -v algorithm address count [*]hash\n"
53 " - verify message digest of memory area to immediate value, \n"
54 " env var or *address"
55 #endif
56 );
57