1/*	$NetBSD: mac.h,v 1.8 2017/04/18 18:41:46 christos Exp $	*/
2/* $OpenBSD: mac.h,v 1.10 2016/07/08 03:44:42 djm Exp $ */
3/*
4 * Copyright (c) 2001 Markus Friedl.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef SSHMAC_H
28#define SSHMAC_H
29
30#include <sys/types.h>
31
32struct sshmac {
33	char	*name;
34	int	enabled;
35	u_int	mac_len;
36	u_char	*key;
37	u_int	key_len;
38	int	type;
39	int	etm;		/* Encrypt-then-MAC */
40	struct ssh_hmac_ctx	*hmac_ctx;
41	struct umac_ctx		*umac_ctx;
42};
43
44int	 mac_valid(const char *);
45char	*mac_alg_list(char);
46int	 mac_setup(struct sshmac *, char *);
47int	 mac_init(struct sshmac *);
48int	 mac_compute(struct sshmac *, u_int32_t, const u_char *, int,
49    u_char *, size_t);
50int	 mac_check(struct sshmac *, u_int32_t, const u_char *, size_t,
51    const u_char *, size_t);
52void	 mac_clear(struct sshmac *);
53
54#endif /* SSHMAC_H */
55