GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/tcpdump/print-enc.c Lines: 0 25 0.0 %
Date: 2017-11-13 Branches: 0 14 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: print-enc.c,v 1.16 2017/08/29 21:10:20 deraadt Exp $	*/
2
3
/*
4
 * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
5
 *	The Regents of the University of California.  All rights reserved.
6
 *
7
 * Redistribution and use in source and binary forms, with or without
8
 * modification, are permitted provided that: (1) source code distributions
9
 * retain the above copyright notice and this paragraph in its entirety, (2)
10
 * distributions including binary code include the above copyright notice and
11
 * this paragraph in its entirety in the documentation or other materials
12
 * provided with the distribution, and (3) all advertising materials mentioning
13
 * features or use of this software display the following acknowledgement:
14
 * ``This product includes software developed by the University of California,
15
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16
 * the University nor the names of its contributors may be used to endorse
17
 * or promote products derived from this software without specific prior
18
 * written permission.
19
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22
 */
23
24
#include <sys/types.h>
25
#include <sys/time.h>
26
#include <sys/socket.h>
27
#include <sys/file.h>
28
#include <sys/ioctl.h>
29
#include <sys/queue.h>
30
#include <sys/mbuf.h>
31
32
struct rtentry;
33
#include <net/if.h>
34
#include <netinet/ip_ipsp.h>
35
#include <net/if_enc.h>
36
37
#include <netinet/in.h>
38
#include <netinet/ip.h>
39
40
#include <ctype.h>
41
#include <netdb.h>
42
#include <pcap.h>
43
#include <signal.h>
44
#include <stdio.h>
45
46
#include "interface.h"
47
#include "addrtoname.h"
48
49
#define ENC_PRINT_TYPE(wh, xf, nam) \
50
	if ((wh) & (xf)) { \
51
		printf("%s%s", nam, (wh) == (xf) ? "): " : ","); \
52
		(wh) &= ~(xf); \
53
	}
54
55
void
56
enc_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
57
{
58
	u_int length = h->len, caplen = h->caplen;
59
	const struct enchdr *hdr;
60
	int flags;
61
62
	ts_print(&h->ts);
63
64
	if (caplen < ENC_HDRLEN) {
65
		printf("[|enc]");
66
		goto out;
67
	}
68
69
	/*
70
	 * Some printers want to get back at the link level addresses,
71
	 * and/or check that they're not walking off the end of the packet.
72
	 * Rather than pass them all the way down, we set these globals.
73
	 */
74
	packetp = p;
75
	snapend = p + caplen;
76
77
	hdr = (struct enchdr *)p;
78
	flags = hdr->flags;
79
	if (flags == 0)
80
		printf("(unprotected): ");
81
	else
82
		printf("(");
83
	ENC_PRINT_TYPE(flags, M_AUTH, "authentic");
84
	ENC_PRINT_TYPE(flags, M_CONF, "confidential");
85
	/* ENC_PRINT_TYPE(flags, M_TUNNEL, "tunnel"); */
86
	printf("SPI 0x%08x: ", ntohl(hdr->spi));
87
88
	length -= ENC_HDRLEN;
89
	p += ENC_HDRLEN;
90
91
	switch (hdr->af) {
92
	case AF_INET:
93
	default:
94
		ip_print(p, length);
95
		break;
96
	case AF_INET6:
97
		ip6_print(p, length);
98
		break;
99
	}
100
101
	if (xflag)
102
		default_print(p, caplen - ENC_HDRLEN);
103
out:
104
	putchar('\n');
105
}