1 /* 2 * Copyright (c) 1994, 1995, 1996 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and 9 * this paragraph in its entirety in the documentation or other materials 10 * provided with the distribution, and (3) all advertising materials mentioning 11 * features or use of this software display the following acknowledgement: 12 * ``This product includes software developed by the University of California, 13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14 * the University nor the names of its contributors may be used to endorse 15 * or promote products derived from this software without specific prior 16 * written permission. 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20 * 21 * Format and print NETBIOS packets. 22 * Contributed by Brad Parker (brad@fcr.com). 23 */ 24 25 #ifndef lint 26 static const char rcsid[] _U_ = 27 "@(#) $Header: /tcpdump/master/tcpdump/print-netbios.c,v 1.20 2003/11/16 09:36:29 guy Exp $"; 28 #endif 29 30 #ifdef HAVE_CONFIG_H 31 #include "config.h" 32 #endif 33 34 #include <tcpdump-stdinc.h> 35 36 #include <stdlib.h> 37 #include <stdio.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 netbios_print(struct p8022Hdr * nb,u_int length)49 netbios_print(struct p8022Hdr *nb, u_int length) 50 { 51 if (length < p8022Size) { 52 (void)printf(" truncated-netbios %d", length); 53 return; 54 } 55 56 if (nb->flags == UI) { 57 (void)printf("802.1 UI "); 58 } else { 59 (void)printf("802.1 CONN "); 60 } 61 62 if ((u_char *)(nb + 1) > snapend) { 63 printf(" [|netbios]"); 64 return; 65 } 66 67 /* 68 netbios_decode(nb, (u_char *)nb + p8022Size, length - p8022Size); 69 */ 70 } 71 72 #ifdef never 73 (void)printf("%s.%d > ", 74 ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode), 75 EXTRACT_16BITS(ipx->srcSkt)); 76 77 (void)printf("%s.%d:", 78 ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode), 79 EXTRACT_16BITS(ipx->dstSkt)); 80 81 if ((u_char *)(ipx + 1) > snapend) { 82 printf(" [|ipx]"); 83 return; 84 } 85 86 /* take length from ipx header */ 87 length = EXTRACT_16BITS(&ipx->length); 88 89 ipx_decode(ipx, (u_char *)ipx + ipxSize, length - ipxSize); 90 #endif 91 92