xref: /dragonfly/sys/netgraph7/ng_ipfw.h (revision 19fe1c42)
1 /*-
2  * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
3  * 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 AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/netgraph/ng_ipfw.h,v 1.2 2006/02/17 09:42:49 glebius Exp $
27  * $DragonFly: src/sys/netgraph7/ng_ipfw.h,v 1.2 2008/06/26 23:05:35 dillon Exp $
28  */
29 
30 #define NG_IPFW_NODE_TYPE    "ipfw"
31 #define NGM_IPFW_COOKIE      1105988990
32 
33 #ifdef _KERNEL
34 
35 typedef int ng_ipfw_input_t(struct mbuf **, int, struct ip_fw_args *, int);
36 extern	ng_ipfw_input_t	*ng_ipfw_input_p;
37 #define	NG_IPFW_LOADED	(ng_ipfw_input_p != NULL)
38 
39 struct ng_ipfw_tag {
40 	struct m_tag	mt;		/* tag header */
41 	struct ip_fw	*rule;		/* matching rule */
42 	struct ifnet	*ifp;		/* interface, for ip_output */
43 	int		dir;
44 #define	NG_IPFW_OUT	0
45 #define	NG_IPFW_IN	1
46 };
47 
48 #define	TAGSIZ	(sizeof(struct ng_ipfw_tag) - sizeof(struct m_tag))
49 
50 #endif /* _KERNEL */
51