53e1b68390
This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
55 lines
2 KiB
C
55 lines
2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2016 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include "macro.h"
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typedef struct khash khash;
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/* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32,
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* sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more. */
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int khash_new(khash **ret, const char *algorithm);
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/* For keyed hash functions. Hash functions commonly supported on today's kernels are: hmac(sha256), cmac(aes),
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* cmac(des3_ede), hmac(sha3-512), hmac(sha3-384), hmac(sha3-256), hmac(sha3-224), hmac(rmd160), hmac(rmd128),
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* hmac(sha224), hmac(sha512), hmac(sha384), hmac(sha1), hmac(md5), and more. */
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int khash_new_with_key(khash **ret, const char *algorithm, const void *key, size_t key_size);
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int khash_dup(khash *h, khash **ret);
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khash* khash_unref(khash *h);
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const char *khash_get_algorithm(khash *h);
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size_t khash_get_size(khash *h);
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int khash_reset(khash *h);
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int khash_put(khash *h, const void *buffer, size_t size);
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int khash_put_iovec(khash *h, const struct iovec *iovec, size_t n);
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int khash_digest_data(khash *h, const void **ret);
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int khash_digest_string(khash *h, char **ret);
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DEFINE_TRIVIAL_CLEANUP_FUNC(khash*, khash_unref);
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