2 * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
23 static const char rcsid[] _U_ =
24 "@(#) $Header: /tcpdump/master/tcpdump/print-pflog.c,v 1.7.2.4 2004/03/29 21:56:26 guy Exp $ (LBL)";
31 #include <tcpdump-stdinc.h>
36 #include "interface.h"
37 #include "addrtoname.h"
40 static struct tok pf_reasons[] = {
42 { 1, "1(bad-offset)" },
45 { 4, "4(normalize)" },
50 static struct tok pf_actions[] = {
53 { PF_SCRUB, "scrub" },
56 { PF_BINAT, "binat" },
57 { PF_NOBINAT, "binat" },
60 { PF_SYNPROXY_DROP, "synproxy-drop" },
64 static struct tok pf_directions[] = {
65 { PF_INOUT, "in/out" },
71 /* For reading capture files on other systems */
72 #define OPENBSD_AF_INET 2
73 #define OPENBSD_AF_INET6 24
76 pflog_print(const struct pfloghdr *hdr)
78 if (ntohl(hdr->subrulenr) == (u_int32_t)-1)
79 printf("rule %u/", ntohl(hdr->rulenr));
81 printf("rule %u.%s.%u/", ntohl(hdr->rulenr), hdr->ruleset,
82 ntohl(hdr->subrulenr));
84 printf("%s: %s %s on %s: ",
85 tok2str(pf_reasons, "unkn(%u)", hdr->reason),
86 tok2str(pf_actions, "unkn(%u)", hdr->action),
87 tok2str(pf_directions, "unkn(%u)", hdr->dir),
92 pflog_if_print(const struct pcap_pkthdr *h, register const u_char *p)
94 u_int length = h->len;
96 u_int caplen = h->caplen;
97 const struct pfloghdr *hdr;
101 if (caplen < sizeof(u_int8_t)) {
106 #define MIN_PFLOG_HDRLEN 45
107 hdr = (struct pfloghdr *)p;
108 if (hdr->length < MIN_PFLOG_HDRLEN) {
109 printf("[pflog: invalid header length!]");
110 return (hdr->length); /* XXX: not really */
112 hdrlen = BPF_WORDALIGN(hdr->length);
114 if (caplen < hdrlen) {
116 return (hdrlen); /* XXX: true? */
119 /* print what we know */
120 hdr = (struct pfloghdr *)p;
125 /* skip to the real packet */
133 #if OPENBSD_AF_INET != AF_INET
134 case OPENBSD_AF_INET: /* XXX: read pcap files */
141 #if OPENBSD_AF_INET6 != AF_INET6
142 case OPENBSD_AF_INET6: /* XXX: read pcap files */
144 ip6_print(p, length);
149 /* address family not handled, print raw packet */
152 if (!xflag && !qflag)
153 default_print(p, caplen);