mirror of
https://gitlab.com/cryptsetup/cryptsetup.git
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139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/*
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* unit test helper for crypt_wipe API call
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*
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* Copyright (C) 2022-2023 Milan Broz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <sys/stat.h>
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#include "libcryptsetup.h"
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const char *test_file;
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uint64_t test_offset, test_length, test_block;
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uint32_t flags;
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crypt_wipe_pattern pattern;
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static void usage(void)
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{
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fprintf(stderr, "Use:\tunit-wipe file/device zero|random|special offset length bsize [no-dio].\n");
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}
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static bool parse_u64(const char *arg, uint64_t *u64)
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{
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unsigned long long ull;
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char *end;
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ull = strtoull(arg, &end, 10);
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if (*end || !*arg || errno == ERANGE)
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return false;
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if (ull % 512)
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return false;
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*u64 = ull;
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return true;
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}
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static bool parse_input_params(int argc, char **argv)
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{
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struct stat st;
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if (argc < 6 || argc > 7) {
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usage();
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return false;
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}
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if (stat(argv[1], &st)) {
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fprintf(stderr, "File/device %s is missing?\n", argv[1]);
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return false;
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}
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test_file = argv[1];
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if (!strcmp(argv[2], "random"))
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pattern = CRYPT_WIPE_RANDOM;
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else if (!strcmp(argv[2], "zero"))
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pattern = CRYPT_WIPE_ZERO;
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else if (!strcmp(argv[2], "special"))
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pattern = CRYPT_WIPE_SPECIAL;
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else {
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fprintf(stderr, "Wrong pattern specification.\n");
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return false;
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}
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if (!parse_u64(argv[3], &test_offset)) {
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fprintf(stderr, "Wrong offset specification.\n");
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return false;
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}
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if (!parse_u64(argv[4], &test_length)) {
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fprintf(stderr, "Wrong length specification.\n");
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return false;
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}
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if (!parse_u64(argv[5], &test_block)) {
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fprintf(stderr, "Wrong block length specification.\n");
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return false;
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}
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if (argc > 6) {
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if (!strcmp(argv[6], "no-dio"))
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flags = CRYPT_WIPE_NO_DIRECT_IO;
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else {
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fprintf(stderr, "Wrong flags specification.\n");
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return false;
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}
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}
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return true;
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}
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int main(int argc, char **argv)
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{
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struct crypt_device *cd;
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int r;
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#ifndef NO_CRYPTSETUP_PATH
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if (getenv("CRYPTSETUP_PATH")) {
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printf("Cannot run this test with CRYPTSETUP_PATH set.\n");
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exit(77);
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}
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#endif
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if (!parse_input_params(argc, argv))
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return EXIT_FAILURE;
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r = crypt_init(&cd, NULL);
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if (r < 0) {
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fprintf(stderr, "Context init failure %i.\n", r);
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return EXIT_FAILURE;
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}
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r = crypt_wipe(cd, test_file, pattern, test_offset, test_length,
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test_block, flags, NULL, NULL);
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crypt_free(cd);
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if (r)
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fprintf(stderr, "Failure %i\n", r);
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return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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