xref: /openbsd-src/usr.sbin/tcpdump/print-raw.c (revision a28daedfc357b214be5c701aa8ba8adb29a7f1c2)
1 /*	$OpenBSD: print-raw.c,v 1.5 2007/10/07 16:41:05 deraadt Exp $	*/
2 
3 /*
4  * Copyright (c) 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 #ifndef lint
25 static const char rcsid[] =
26     "@(#) $Id: print-raw.c,v 1.5 2007/10/07 16:41:05 deraadt Exp $ (LBL)";
27 #endif
28 
29 #include <sys/param.h>
30 #include <sys/time.h>
31 #include <sys/socket.h>
32 #include <sys/file.h>
33 #include <sys/ioctl.h>
34 
35 struct mbuf;
36 struct rtentry;
37 #include <net/if.h>
38 
39 #include <netinet/in.h>
40 #include <netinet/in_systm.h>
41 #include <netinet/ip.h>
42 #include <netinet/if_ether.h>
43 #include <netinet/ip_var.h>
44 #include <netinet/udp.h>
45 #include <netinet/udp_var.h>
46 #include <netinet/tcp.h>
47 
48 #include <pcap.h>
49 #include <stdio.h>
50 #include <string.h>
51 
52 #include "addrtoname.h"
53 #include "interface.h"
54 
55 #ifndef AF_NS
56 #define AF_NS		6		/* XEROX NS protocols */
57 #endif
58 
59 /*
60  * The DLT_RAW packet has no header. It contains a raw IP packet.
61  */
62 
63 void
64 raw_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
65 {
66 	u_int length = h->len;
67 	u_int caplen = h->caplen;
68 
69 	ts_print(&h->ts);
70 
71 	/*
72 	 * Some printers want to get back at the link level addresses,
73 	 * and/or check that they're not walking off the end of the packet.
74 	 * Rather than pass them all the way down, we set these globals.
75 	 */
76 	packetp = p;
77 	snapend = p + caplen;
78 
79 	if (eflag)
80 		printf("ip: ");
81 
82 	ip_print(p, length);
83 
84 	if (xflag)
85 		default_print(p, caplen);
86 	putchar('\n');
87 }
88