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 1.16 2007-09-12 19:36:18 guy Exp $ (LBL)";
31 #ifndef HAVE_NET_PFVAR_H
32 #error "No pf headers available"
34 #include <sys/types.h>
35 #include <sys/socket.h>
37 #include <net/if_var.h>
38 #include <net/pf/pfvar.h>
39 #include <net/pf/if_pflog.h>
41 #include <tcpdump-stdinc.h>
46 #include "interface.h"
47 #include "addrtoname.h"
49 static struct tok pf_reasons[] = {
51 { 1, "1(bad-offset)" },
54 { 4, "4(normalize)" },
56 { 6, "6(bad-timestamp)" },
57 { 7, "7(congestion)" },
58 { 8, "8(ip-option)" },
59 { 9, "9(proto-cksum)" },
60 { 10, "10(state-mismatch)" },
61 { 11, "11(state-insert)" },
62 { 12, "12(state-limit)" },
63 { 13, "13(src-limit)" },
64 { 14, "14(synproxy)" },
68 static struct tok pf_actions[] = {
71 { PF_SCRUB, "scrub" },
74 { PF_BINAT, "binat" },
75 { PF_NOBINAT, "binat" },
78 { PF_SYNPROXY_DROP, "synproxy-drop" },
82 static struct tok pf_directions[] = {
83 { PF_INOUT, "in/out" },
89 /* For reading capture files on other systems */
90 #define OPENBSD_AF_INET 2
91 #define OPENBSD_AF_INET6 24
94 pflog_print(const struct pfloghdr *hdr)
96 u_int32_t rulenr, subrulenr;
98 rulenr = ntohl(hdr->rulenr);
99 subrulenr = ntohl(hdr->subrulenr);
100 if (subrulenr == (u_int32_t)-1)
101 printf("rule %u/", rulenr);
103 printf("rule %u.%s.%u/", rulenr, hdr->ruleset, subrulenr);
105 printf("%s: %s %s on %s: ",
106 tok2str(pf_reasons, "unkn(%u)", hdr->reason),
107 tok2str(pf_actions, "unkn(%u)", hdr->action),
108 tok2str(pf_directions, "unkn(%u)", hdr->dir),
113 pflog_if_print(const struct pcap_pkthdr *h, register const u_char *p)
115 u_int length = h->len;
117 u_int caplen = h->caplen;
118 const struct pfloghdr *hdr;
122 if (caplen < sizeof(u_int8_t)) {
127 #define MIN_PFLOG_HDRLEN 45
128 hdr = (struct pfloghdr *)p;
129 if (hdr->length < MIN_PFLOG_HDRLEN) {
130 printf("[pflog: invalid header length!]");
131 return (hdr->length); /* XXX: not really */
133 hdrlen = BPF_WORDALIGN(hdr->length);
135 if (caplen < hdrlen) {
137 return (hdrlen); /* XXX: true? */
140 /* print what we know */
141 hdr = (struct pfloghdr *)p;
146 /* skip to the real packet */
154 #if OPENBSD_AF_INET != AF_INET
155 case OPENBSD_AF_INET: /* XXX: read pcap files */
157 ip_print(gndo, p, length);
162 #if OPENBSD_AF_INET6 != AF_INET6
163 case OPENBSD_AF_INET6: /* XXX: read pcap files */
165 ip6_print(p, length);
170 /* address family not handled, print raw packet */
173 if (!suppress_default_print)
174 default_print(p, caplen);
185 * c-style: whitesmith