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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
0fe5f3c5 LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2016 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #include <inttypes.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/uio.h> | |
26 | ||
27 | #include "macro.h" | |
28 | ||
29 | typedef struct khash khash; | |
30 | ||
31 | /* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32, | |
13e785f7 | 32 | * sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more. */ |
0fe5f3c5 LP |
33 | int khash_new(khash **ret, const char *algorithm); |
34 | ||
35 | /* For keyed hash functions. Hash functions commonly supported on today's kernels are: hmac(sha256), cmac(aes), | |
36 | * cmac(des3_ede), hmac(sha3-512), hmac(sha3-384), hmac(sha3-256), hmac(sha3-224), hmac(rmd160), hmac(rmd128), | |
37 | * hmac(sha224), hmac(sha512), hmac(sha384), hmac(sha1), hmac(md5), and more. */ | |
38 | int khash_new_with_key(khash **ret, const char *algorithm, const void *key, size_t key_size); | |
39 | ||
40 | int khash_dup(khash *h, khash **ret); | |
41 | khash* khash_unref(khash *h); | |
42 | ||
43 | const char *khash_get_algorithm(khash *h); | |
44 | size_t khash_get_size(khash *h); | |
45 | ||
46 | int khash_reset(khash *h); | |
47 | ||
48 | int khash_put(khash *h, const void *buffer, size_t size); | |
49 | int khash_put_iovec(khash *h, const struct iovec *iovec, size_t n); | |
50 | ||
51 | int khash_digest_data(khash *h, const void **ret); | |
52 | int khash_digest_string(khash *h, char **ret); | |
53 | ||
54 | DEFINE_TRIVIAL_CLEANUP_FUNC(khash*, khash_unref); |