xref: /openbsd/usr.sbin/tcpdump/print-netbios.c (revision 73471bf0)
1 /*	$OpenBSD: print-netbios.c,v 1.10 2015/01/16 06:40:21 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 #include <sys/socket.h>
28 
29 #include <netinet/in.h>
30 #include <netinet/ip.h>
31 #include <netinet/ip_var.h>
32 #include <netinet/udp.h>
33 #include <netinet/udp_var.h>
34 #include <netinet/tcp.h>
35 
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 
40 #include "interface.h"
41 #include "addrtoname.h"
42 #include "netbios.h"
43 #include "extract.h"
44 
45 /*
46  * Print NETBIOS packets.
47  */
48 void
49 netbios_print(struct p8022Hdr *nb, u_int length)
50 {
51 	if (length < p8022Size) {
52 		printf(" truncated-netbios %d", length);
53 		return;
54 	}
55 
56 	TCHECK(*nb);
57 
58 	if (nb->flags == UI)
59 		printf("802.1 UI ");
60 	else
61 		printf("802.1 CONN ");
62 
63 #if 0
64 	netbios_decode(nb, (u_char *)nb + p8022Size, length - p8022Size);
65 #endif
66 
67 trunc:
68 	printf("[|netbios]");
69 }
70