print-enc.c revision 127668 
1193323Sed/*	$OpenBSD: print-enc.c,v 1.7 2002/02/19 19:39:40 millert Exp $	*/
2193323Sed
3193323Sed/*
4193323Sed * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
5193323Sed *	The Regents of the University of California.  All rights reserved.
6193323Sed *
7193323Sed * Redistribution and use in source and binary forms, with or without
8193323Sed * modification, are permitted provided that: (1) source code distributions
9193323Sed * retain the above copyright notice and this paragraph in its entirety, (2)
10193323Sed * distributions including binary code include the above copyright notice and
11193323Sed * this paragraph in its entirety in the documentation or other materials
12193323Sed * provided with the distribution, and (3) all advertising materials mentioning
13193323Sed * features or use of this software display the following acknowledgement:
14193323Sed * ``This product includes software developed by the University of California,
15193323Sed * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16193323Sed * the University nor the names of its contributors may be used to endorse
17193323Sed * or promote products derived from this software without specific prior
18193323Sed * written permission.
19193323Sed * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20193323Sed * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21193323Sed * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22193323Sed */
23193323Sed
24#ifndef lint
25static const char rcsid[] _U_ =
26    "@(#) $Header: /tcpdump/master/tcpdump/print-enc.c,v 1.1.2.2 2003/11/16 08:51:19 guy Exp $ (LBL)";
27#endif
28
29#ifdef HAVE_CONFIG_H
30#include "config.h"
31#endif
32
33#include <tcpdump-stdinc.h>
34
35#include <pcap.h>
36
37#include "interface.h"
38#include "addrtoname.h"
39
40#include "enc.h"
41
42#define ENC_PRINT_TYPE(wh, xf, nam) \
43	if ((wh) & (xf)) { \
44		printf("%s%s", nam, (wh) == (xf) ? "): " : ","); \
45		(wh) &= ~(xf); \
46	}
47
48u_int
49enc_if_print(const struct pcap_pkthdr *h, register const u_char *p)
50{
51	register u_int length = h->len;
52	register u_int caplen = h->caplen;
53	int flags;
54	const struct enchdr *hdr;
55
56	if (caplen < ENC_HDRLEN) {
57		printf("[|enc]");
58		goto out;
59	}
60
61	hdr = (struct enchdr *)p;
62	flags = hdr->flags;
63	if (flags == 0)
64		printf("(unprotected): ");
65	else
66		printf("(");
67	ENC_PRINT_TYPE(flags, M_AUTH, "authentic");
68	ENC_PRINT_TYPE(flags, M_CONF, "confidential");
69	/* ENC_PRINT_TYPE(flags, M_TUNNEL, "tunnel"); */
70	printf("SPI 0x%08x: ", (u_int32_t)ntohl(hdr->spi));
71
72	length -= ENC_HDRLEN;
73	/* XXX - use the address family */
74	ip_print(p + ENC_HDRLEN, length);
75
76out:
77	return (ENC_HDRLEN);
78}
79