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