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      1 
      2 /*
      3  * Copyright (c) 2001 Daniel Hartmeier
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  *
     10  *    - Redistributions of source code must retain the above copyright
     11  *      notice, this list of conditions and the following disclaimer.
     12  *    - Redistributions in binary form must reproduce the above
     13  *      copyright notice, this list of conditions and the following
     14  *      disclaimer in the documentation and/or other materials provided
     15  *      with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     20  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     21  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     25  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  *
     30  * @(#) Header: /tcpdump/master/tcpdump/pf.h,v 1.2 2004/04/02 06:36:25 guy Exp (LBL)
     31  */
     32 
     33 /*	from $OpenBSD: pfvar.h,v 1.170 2003/08/22 21:50:34 david Exp $ */
     34 
     35 enum	{ PF_INOUT=0, PF_IN=1, PF_OUT=2 };
     36 enum	{ PF_PASS=0, PF_DROP=1, PF_SCRUB=2, PF_NAT=3, PF_NONAT=4,
     37 	  PF_BINAT=5, PF_NOBINAT=6, PF_RDR=7, PF_NORDR=8, PF_SYNPROXY_DROP=9 };
     38 
     39 /* Reasons code for passing/dropping a packet */
     40 #define PFRES_MATCH	0		/* Explicit match of a rule */
     41 #define PFRES_BADOFF	1		/* Bad offset for pull_hdr */
     42 #define PFRES_FRAG	2		/* Dropping following fragment */
     43 #define PFRES_SHORT	3		/* Dropping short packet */
     44 #define PFRES_NORM	4		/* Dropping by normalizer */
     45 #define PFRES_MEMORY	5		/* Dropped due to lacking mem */
     46 #define PFRES_MAX	6		/* total+1 */
     47 
     48 #define PFRES_NAMES { \
     49 	"match", \
     50 	"bad-offset", \
     51 	"fragment", \
     52 	"short", \
     53 	"normalize", \
     54 	"memory", \
     55 	NULL \
     56 }
     57 
     58 #define PF_RULESET_NAME_SIZE	16
     59 
     60 /*	from $OpenBSD: if_pflog.h,v 1.9 2003/07/15 20:27:27 dhartmei Exp $ */
     61 
     62 #ifndef IFNAMSIZ
     63 #define	IFNAMSIZ	16
     64 #endif
     65 
     66 struct pfloghdr {
     67 	u_int8_t	length;
     68 	u_int8_t	af;
     69 	u_int8_t	action;
     70 	u_int8_t	reason;
     71 	char		ifname[IFNAMSIZ];
     72 	char		ruleset[PF_RULESET_NAME_SIZE];
     73 	u_int32_t	rulenr;
     74 	u_int32_t	subrulenr;
     75 	u_int8_t	dir;
     76 	u_int8_t	pad[3];
     77 };
     78 #define PFLOG_HDRLEN		sizeof(struct pfloghdr)
     79