/* * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */#ifndef lintstatic const char rcsid[] _U_ =    "@(#) $Header: /tcpdump/master/tcpdump/print-pflog.c,v 1.16 2007-09-12 19:36:18 guy Exp $ (LBL)";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#ifndef HAVE_NET_PFVAR_H#error "No pf headers available"#endif#include <sys/types.h>#include <sys/socket.h>#include <net/if.h>#include <net/pfvar.h>#include <net/if_pflog.h>#include <tcpdump-stdinc.h>#include <stdio.h>#include <pcap.h>#include "interface.h"#include "addrtoname.h"static struct tok pf_reasons[] = {	{ 0,	"0(match)" },	{ 1,	"1(bad-offset)" },	{ 2,	"2(fragment)" },	{ 3,	"3(short)" },	{ 4,	"4(normalize)" },	{ 5,	"5(memory)" },	{ 6,	"6(bad-timestamp)" },	{ 7,	"7(congestion)" },	{ 8,	"8(ip-option)" },	{ 9,	"9(proto-cksum)" },	{ 10,	"10(state-mismatch)" },	{ 11,	"11(state-insert)" },	{ 12,	"12(state-limit)" },	{ 13,	"13(src-limit)" },	{ 14,	"14(synproxy)" },	{ 0,	NULL }};static struct tok pf_actions[] = {	{ PF_PASS,		"pass" },	{ PF_DROP,		"block" },	{ PF_SCRUB,		"scrub" },	{ PF_NAT,		"nat" },	{ PF_NONAT,		"nat" },	{ PF_BINAT,		"binat" },	{ PF_NOBINAT,		"binat" },	{ PF_RDR,		"rdr" },	{ PF_NORDR,		"rdr" },	{ PF_SYNPROXY_DROP,	"synproxy-drop" },	{ 0,			NULL }};static struct tok pf_directions[] = {	{ PF_INOUT,	"in/out" },	{ PF_IN,	"in" },	{ PF_OUT,	"out" },	{ 0,		NULL }};/* For reading capture files on other systems */#define	OPENBSD_AF_INET		2#define	OPENBSD_AF_INET6	24static voidpflog_print(const struct pfloghdr *hdr){	u_int32_t rulenr, subrulenr;	rulenr = ntohl(hdr->rulenr);	subrulenr = ntohl(hdr->subrulenr);	if (subrulenr == (u_int32_t)-1)		printf("rule %u/", rulenr);	else		printf("rule %u.%s.%u/", rulenr, hdr->ruleset, subrulenr);	printf("%s: %s %s on %s: ",	    tok2str(pf_reasons, "unkn(%u)", hdr->reason),	    tok2str(pf_actions, "unkn(%u)", hdr->action),	    tok2str(pf_directions, "unkn(%u)", hdr->dir),	    hdr->ifname);}u_intpflog_if_print(const struct pcap_pkthdr *h, register const u_char *p){	u_int length = h->len;	u_int hdrlen;	u_int caplen = h->caplen;	const struct pfloghdr *hdr;	u_int8_t af;	/* check length */	if (caplen < sizeof(u_int8_t)) {		printf("[|pflog]");		return (caplen);	}#define MIN_PFLOG_HDRLEN	45	hdr = (struct pfloghdr *)p;	if (hdr->length < MIN_PFLOG_HDRLEN) {		printf("[pflog: invalid header length!]");		return (hdr->length);	/* XXX: not really */	}	hdrlen = BPF_WORDALIGN(hdr->length);	if (caplen < hdrlen) {		printf("[|pflog]");		return (hdrlen);	/* XXX: true? */	}	/* print what we know */	hdr = (struct pfloghdr *)p;	TCHECK(*hdr);	if (eflag)		pflog_print(hdr);		/* skip to the real packet */	af = hdr->af;	length -= hdrlen;	caplen -= hdrlen;	p += hdrlen;	switch (af) {		case AF_INET:#if OPENBSD_AF_INET != AF_INET		case OPENBSD_AF_INET:		/* XXX: read pcap files */#endif		        ip_print(gndo, p, length);			break;#ifdef INET6		case AF_INET6:#if OPENBSD_AF_INET6 != AF_INET6		case OPENBSD_AF_INET6:		/* XXX: read pcap files */#endif			ip6_print(p, length);			break;#endif	default:		/* address family not handled, print raw packet */		if (!eflag)			pflog_print(hdr);		if (!suppress_default_print)			default_print(p, caplen);	}		return (hdrlen);trunc:	printf("[|pflog]");	return (hdrlen);}/* * Local Variables: * c-style: whitesmith * c-basic-offset: 8 * End: */