2017-11-18 17:09:20 +01:00
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/* SPDX-License-Identifier: LGPL-2.1+ */
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2016-11-17 17:03:21 +01:00
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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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***/
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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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2018-02-26 13:46:58 +01:00
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int khash_supported(void);
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2016-11-17 17:03:21 +01:00
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/* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32,
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2017-02-24 18:14:02 +01:00
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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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2016-11-17 17:03:21 +01:00
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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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