mirror of
https://github.com/openssh/libopenssh
synced 2026-04-16 17:56:33 +00:00
60cb7a627f
This adds some new functions: sshbuf_from(), sshbuf_fromb() and sshbuf_froms() that create new buffers from a read-only blob, the contents of a buffer and the contents of a string in a buffer respectively. In all cases the memory contents are not copied - the new buffer, which is read-only, just refers to the original location in memory.
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* $OpenBSD: mac.h,v 1.6 2007/06/07 19:37:34 pvalchev Exp $ */
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/*
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* Copyright (c) 2001 Markus Friedl. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SSHMAC_H
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#define SSHMAC_H
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#include <sys/types.h>
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#include <openssl/evp.h>
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#include <openssl/hmac.h>
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#define MAC_DIGEST_LEN_MAX EVP_MAX_MD_SIZE
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struct sshmac {
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char *name;
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int enabled;
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u_int mac_len;
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u_char *key;
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u_int key_len;
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int type;
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const EVP_MD *evp_md;
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HMAC_CTX evp_ctx;
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struct umac_ctx *umac_ctx;
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};
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int mac_valid(const char *);
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int mac_setup(struct sshmac *, char *);
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int mac_init(struct sshmac *);
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int mac_compute(struct sshmac *, u_int32_t, const u_char *, int,
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u_char *, size_t);
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void mac_clear(struct sshmac *);
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#endif /* SSHMAC_H */
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