197 lines
4.4 KiB
C
197 lines
4.4 KiB
C
/*
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* digest.c - Calculate a md5/sha1/sha256 checksum of a memory area
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*
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* Copyright (c) 2011 Peter Korsgaard <jacmet@sunsite.dk>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <xfuncs.h>
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#include <malloc.h>
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#include <digest.h>
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#include <getopt.h>
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#include "internal.h"
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static int do_hash(char *algo, int argc, char *argv[])
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{
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struct digest *d;
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unsigned char *key = NULL;
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size_t keylen = 0;
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int opt, ret;
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while ((opt = getopt(argc, argv, "h:")) > 0) {
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switch(opt) {
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case 'h':
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key = optarg;
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keylen = strlen(key);
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break;
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default:
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return COMMAND_ERROR_USAGE;
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}
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}
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if (key) {
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char *tmp = basprintf("hmac(%s)", algo);
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d = digest_alloc(tmp);
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free(tmp);
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BUG_ON(!d);
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ret = digest_set_key(d, key, keylen);
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if (ret) {
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perror("set_key");
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return ret;
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}
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} else {
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d = digest_alloc(algo);
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BUG_ON(!d);
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}
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argc -= optind;
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argv += optind;
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return __do_digest(d, NULL, argc, argv);
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}
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#ifdef CONFIG_CMD_MD5SUM
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static int do_md5(int argc, char *argv[])
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{
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return do_hash("md5", argc, argv);
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}
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BAREBOX_CMD_HELP_START(md5sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a MD5 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(md5sum)
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.cmd = do_md5,
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BAREBOX_CMD_DESC("calculate MD5 checksum")
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BAREBOX_CMD_OPTS("FILE|AREA...")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_md5sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_MD5SUM */
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#ifdef CONFIG_CMD_SHA1SUM
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static int do_sha1(int argc, char *argv[])
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{
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return do_hash("sha1", argc, argv);
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}
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BAREBOX_CMD_HELP_START(sha1sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a SHA1 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(sha1sum)
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.cmd = do_sha1,
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BAREBOX_CMD_DESC("calculate SHA1 digest")
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BAREBOX_CMD_OPTS("FILE|AREA")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_sha1sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_SHA1SUM */
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#ifdef CONFIG_CMD_SHA224SUM
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static int do_sha224(int argc, char *argv[])
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{
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return do_hash("sha224", argc, argv);
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}
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BAREBOX_CMD_HELP_START(sha224sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a SHA224 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(sha224sum)
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.cmd = do_sha224,
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BAREBOX_CMD_DESC("calculate SHA224 digest")
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BAREBOX_CMD_OPTS("FILE|AREA")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_sha224sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_SHA224SUM */
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#ifdef CONFIG_CMD_SHA256SUM
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static int do_sha256(int argc, char *argv[])
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{
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return do_hash("sha256", argc, argv);
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}
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BAREBOX_CMD_HELP_START(sha256sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a SHA256 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(sha256sum)
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.cmd = do_sha256,
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BAREBOX_CMD_DESC("calculate SHA256 digest")
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BAREBOX_CMD_OPTS("FILE|AREA")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_sha256sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_SHA256SUM */
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#ifdef CONFIG_CMD_SHA384SUM
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static int do_sha384(int argc, char *argv[])
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{
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return do_hash("sha384", argc, argv);
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}
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BAREBOX_CMD_HELP_START(sha384sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a SHA384 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(sha384sum)
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.cmd = do_sha384,
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BAREBOX_CMD_DESC("calculate SHA384 digest")
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BAREBOX_CMD_OPTS("FILE|AREA")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_sha384sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_SHA384SUM */
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#ifdef CONFIG_CMD_SHA512SUM
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static int do_sha512(int argc, char *argv[])
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{
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return do_hash("sha512", argc, argv);
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}
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BAREBOX_CMD_HELP_START(sha512sum)
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BAREBOX_CMD_HELP_TEXT("Calculate a SHA512 digest over a FILE or a memory area.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(sha512sum)
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.cmd = do_sha512,
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BAREBOX_CMD_DESC("calculate SHA512 digest")
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BAREBOX_CMD_OPTS("FILE|AREA")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_HELP(cmd_sha512sum_help)
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BAREBOX_CMD_END
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#endif /* CMD_CMD_SHA512SUM */
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