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