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      1 /*	$NetBSD: if_pflog.h,v 1.5 2008/06/18 09:06:27 yamt Exp $	*/
      2 /*	$OpenBSD: if_pflog.h,v 1.14 2006/10/25 11:27:01 henning Exp $ */
      3 
      4 /*
      5  * Copyright 2001 Niels Provos <provos (at) citi.umich.edu>
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _NET_IF_PFLOG_H_
     30 #define _NET_IF_PFLOG_H_
     31 
     32 #define	PFLOGIFS_MAX	16
     33 
     34 struct pflog_softc {
     35 	struct ifnet		sc_if;		/* the interface */
     36 	int			sc_unit;
     37 	LIST_ENTRY(pflog_softc)	sc_list;
     38 };
     39 
     40 #define PFLOG_RULESET_NAME_SIZE	16
     41 
     42 struct pfloghdr {
     43 	u_int8_t	length;
     44 	sa_family_t	af;
     45 	u_int8_t	action;
     46 	u_int8_t	reason;
     47 	char		ifname[IFNAMSIZ];
     48 	char		ruleset[PFLOG_RULESET_NAME_SIZE];
     49 	u_int32_t	rulenr;
     50 	u_int32_t	subrulenr;
     51 	uid_t		uid;
     52 	pid_t		pid;
     53 	uid_t		rule_uid;
     54 	pid_t		rule_pid;
     55 	u_int8_t	dir;
     56 	u_int8_t	pad[3];
     57 };
     58 
     59 #define PFLOG_HDRLEN		sizeof(struct pfloghdr)
     60 /* minus pad, also used as a signature */
     61 #define PFLOG_REAL_HDRLEN	offsetof(struct pfloghdr, pad)
     62 
     63 /* XXX remove later when old format logs are no longer needed */
     64 struct old_pfloghdr {
     65 	u_int32_t af;
     66 	char ifname[IFNAMSIZ];
     67 	short rnr;
     68 	u_short reason;
     69 	u_short action;
     70 	u_short dir;
     71 };
     72 #define OLD_PFLOG_HDRLEN	sizeof(struct old_pfloghdr)
     73 
     74 #ifdef _KERNEL
     75 
     76 #if NPFLOG > 0
     77 #define	PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) pflog_packet(i,a,b,c,d,e,f,g,h)
     78 #else
     79 #define	PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) ((void)0)
     80 #endif /* NPFLOG > 0 */
     81 #endif /* _KERNEL */
     82 #endif /* _NET_IF_PFLOG_H_ */
     83