/*-
 * Copyright (c) 2010 Mikolaj Golub <to.my.trociny@gmail.com>
 * All rights reserved.
 *
 * This software was developed by Mikolaj Golub. The source is derived
 * from HAST developed by Pawel Jakub Dawidek under sponsorship from
 * the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
 *
 * $FreeBSD$
 */

#ifndef _AUTH_H_
#define _AUTH_H_

#include <stdbool.h>	/* bool */

#define HAST_AUTH_UNDEF		0
#define HAST_AUTH_MD5		1
#define HAST_AUTH_SHA1		2
#define HAST_AUTH_SHA256	3
#define HAST_AUTH_RIPEMD160	4
#define HAST_AUTH_MAX		5

#define HAST_KEYMAX		1024

struct nv;
struct proto_conn;

struct hast_auth {
	int	au_algo;
	char	au_secret[HAST_KEYMAX];
};

void auth_add(struct nv *nv, struct proto_conn *conn, struct hast_auth *key);
bool auth_confirm(struct nv *nv, struct proto_conn *conn, struct hast_auth *key);

int str2algo (const char *str);

#endif	/* !_AUTH_H_ */