xref: /openbsd-src/usr.sbin/tcpdump/print-netbios.c (revision a28daedfc357b214be5c701aa8ba8adb29a7f1c2)
1 /*	$OpenBSD: print-netbios.c,v 1.7 2007/10/07 16:41:05 deraadt Exp $	*/
2 
3 /*
4  * Copyright (c) 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  * Format and print NETBIOS packets.
24  * Contributed by Brad Parker (brad@fcr.com).
25  */
26 
27 #ifndef lint
28 static const char rcsid[] =
29     "@(#) $Id: print-netbios.c,v 1.7 2007/10/07 16:41:05 deraadt Exp $";
30 #endif
31 
32 #include <sys/param.h>
33 #include <sys/socket.h>
34 
35 #include <netinet/in.h>
36 #include <netinet/in_systm.h>
37 #include <netinet/ip.h>
38 #include <netinet/ip_var.h>
39 #include <netinet/udp.h>
40 #include <netinet/udp_var.h>
41 #include <netinet/tcp.h>
42 
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 
47 #include "interface.h"
48 #include "addrtoname.h"
49 #include "netbios.h"
50 #include "extract.h"
51 
52 /*
53  * Print NETBIOS packets.
54  */
55 void
56 netbios_print(struct p8022Hdr *nb, u_int length)
57 {
58 	if (length < p8022Size) {
59 		printf(" truncated-netbios %d", length);
60 		return;
61 	}
62 
63 	TCHECK(*nb);
64 
65 	if (nb->flags == UI)
66 		printf("802.1 UI ");
67 	else
68 		printf("802.1 CONN ");
69 
70 #if 0
71 	netbios_decode(nb, (u_char *)nb + p8022Size, length - p8022Size);
72 #endif
73 
74 trunc:
75 	printf("[|netbios]");
76 }
77