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27fe03c751
For OpenSSL 1, `EVP_get_digestbyname()` will fail with "sha2-*" algorithm names. Must use "sha256", etc. I made a shim that does the conversion, and I made an improvement to ignore case when converting alg names to our hash type enumeration. Other fixes for a few warnings.
72 lines
2 KiB
C
72 lines
2 KiB
C
/*
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* Copyright (C) 2013-2025 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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* Copyright (C) 2010-2013 Sourcefire, Inc.
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*
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* Authors: aCaB
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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 as
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* 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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* 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,
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* MA 02110-1301, USA.
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*/
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#ifndef __MATCHER_HASH_TYPES_H
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#define __MATCHER_HASH_TYPES_H
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typedef enum cli_hash_type {
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CLI_HASH_MD5 = 0,
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CLI_HASH_SHA1,
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CLI_HASH_SHA2_256,
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CLI_HASH_SHA2_384,
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CLI_HASH_SHA2_512,
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} cli_hash_type_t;
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#define CLI_HASH_AVAIL_TYPES (CLI_HASH_SHA2_256 + 1)
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/**
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* @brief Get the name of the hash type as a string.
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*
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* @param type The hash type.
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* @return char* The name of the hash type.
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*/
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const char* cli_hash_name(cli_hash_type_t type);
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/**
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* @brief Get OpenSSL's name of the hash type as a string.
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*
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* Needed because older versions of OpenSSL aren't familiar with "sha2-256",
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* "sha2-384", and "sha2-512".
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*
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* @param alg The name of the hash algorithm.
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* @return char* The OpenSSL name of the hash algorithm.
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*/
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const char *to_openssl_alg(const char *alg);
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/**
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* @brief Get the size of the hash type.
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*
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* @param type The hash type.
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* @return size_t The size of the hash type.
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*/
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size_t cli_hash_len(cli_hash_type_t type);
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/**
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* @brief Get the hash type from its name.
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*
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* @param name The name of the hash type.
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* @return cli_hash_type_t The hash type.
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*/
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cl_error_t cli_hash_type_from_name(const char* name, cli_hash_type_t* type_out);
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#define CLI_HASHLEN_MAX SHA256_HASH_SIZE
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#endif
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