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1 /*	$NetBSD: throttle.h,v 1.4 2006/09/09 16:22:10 manu Exp $	*/
2 
3 /* Id: throttle.h,v 1.1 2004/11/30 00:46:09 manubsd Exp */
4 
5 /*
6  * Copyright (C) 2004 Emmanuel Dreyfus
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. Neither the name of the project nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef _THROTTLE_H
35 #define _THROTTLE_H
36 
37 struct throttle_entry {
38 	int penalty;
39 	TAILQ_ENTRY(throttle_entry) next;
40 	struct sockaddr_storage host;
41 };
42 
43 TAILQ_HEAD(throttle_list, throttle_entry);
44 
45 #define THROTTLE_PENALTY 1
46 #define THROTTLE_PENALTY_MAX 10
47 
48 struct throttle_entry *throttle_add(struct sockaddr *);
49 int throttle_host(struct sockaddr *, int);
50 
51 #endif /* _THROTTLE_H */
52