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#ifndef __LIBSSH2_MAC_H
#define __LIBSSH2_MAC_H
/* Copyright (C) Daniel Stenberg
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* Neither the name of the copyright holder nor the names
* of any other contributors may be used to endorse or
* promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "libssh2_priv.h"
struct _LIBSSH2_MAC_METHOD
{
const char *name;
/* The length of a given MAC packet */
int mac_len;
/* integrity key length */
int key_len;
/* Message Authentication Code Hashing algo */
int (*init) (LIBSSH2_SESSION * session, unsigned char *key, int *free_key,
void **abstract);
int (*hash) (LIBSSH2_SESSION * session, unsigned char *buf,
uint32_t seqno, const unsigned char *packet,
size_t packet_len, const unsigned char *addtl,
size_t addtl_len, void **abstract);
int (*dtor) (LIBSSH2_SESSION * session, void **abstract);
int etm; /* encrypt-then-mac */
};
typedef struct _LIBSSH2_MAC_METHOD LIBSSH2_MAC_METHOD;
const LIBSSH2_MAC_METHOD **_libssh2_mac_methods(void);
const LIBSSH2_MAC_METHOD *_libssh2_mac_override(
const LIBSSH2_CRYPT_METHOD *crypt);
#endif /* __LIBSSH2_MAC_H */
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