print-vjc.c revision 75115
156893Sfenner/* 256893Sfenner * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997 356893Sfenner * The Regents of the University of California. All rights reserved. 456893Sfenner * 556893Sfenner * Redistribution and use in source and binary forms, with or without 656893Sfenner * modification, are permitted provided that: (1) source code distributions 756893Sfenner * retain the above copyright notice and this paragraph in its entirety, (2) 856893Sfenner * distributions including binary code include the above copyright notice and 956893Sfenner * this paragraph in its entirety in the documentation or other materials 1056893Sfenner * provided with the distribution, and (3) all advertising materials mentioning 1156893Sfenner * features or use of this software display the following acknowledgement: 1256893Sfenner * ``This product includes software developed by the University of California, 1356893Sfenner * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 1456893Sfenner * the University nor the names of its contributors may be used to endorse 1556893Sfenner * or promote products derived from this software without specific prior 1656893Sfenner * written permission. 1756893Sfenner * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 1856893Sfenner * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 1956893Sfenner * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 2056893Sfenner */ 2156893Sfenner 2256893Sfenner#ifdef HAVE_CONFIG_H 2356893Sfenner#include "config.h" 2456893Sfenner#endif 2556893Sfenner 2656893Sfenner#ifndef lint 2756893Sfennerstatic const char rcsid[] = 2875115Sfenner "@(#) $Header: /tcpdump/master/tcpdump/print-vjc.c,v 1.9 2000/10/09 01:53:21 guy Exp $ (LBL)"; 2956893Sfenner#endif 3056893Sfenner 3156893Sfenner#include <sys/param.h> 3256893Sfenner#include <sys/time.h> 3356893Sfenner 3456893Sfenner#include <netinet/in.h> 3556893Sfenner 3656893Sfenner#include <ctype.h> 3756893Sfenner#include <netdb.h> 3856893Sfenner#include <pcap.h> 3956893Sfenner#include <stdio.h> 4056893Sfenner 4156893Sfenner#include "interface.h" 4256893Sfenner#include "addrtoname.h" 4356893Sfenner 4475115Sfenner#include "slcompress.h" 4575115Sfenner#include "ppp.h" 4675115Sfenner 4756893Sfennerint 4856893Sfennervjc_print(register const char *bp, register u_int length, u_short proto) 4956893Sfenner{ 5056893Sfenner int i; 5156893Sfenner 5256893Sfenner switch (bp[0] & 0xf0) { 5356893Sfenner case TYPE_IP: 5456893Sfenner if (eflag) 5556893Sfenner printf("(vjc type=IP) "); 5656893Sfenner return PPP_IP; 5756893Sfenner case TYPE_UNCOMPRESSED_TCP: 5856893Sfenner if (eflag) 5956893Sfenner printf("(vjc type=raw TCP) "); 6056893Sfenner return PPP_IP; 6156893Sfenner case TYPE_COMPRESSED_TCP: 6256893Sfenner if (eflag) 6356893Sfenner printf("(vjc type=compressed TCP) "); 6456893Sfenner for (i = 0; i < 8; i++) { 6556893Sfenner if (bp[1] & (0x80 >> i)) 6656893Sfenner printf("%c", "?CI?SAWU"[i]); 6756893Sfenner } 6856893Sfenner if (bp[1]) 6956893Sfenner printf(" "); 7056893Sfenner printf("C=0x%02x ", bp[2]); 7156893Sfenner printf("sum=0x%04x ", *(u_short *)&bp[3]); 7256893Sfenner return -1; 7356893Sfenner case TYPE_ERROR: 7456893Sfenner if (eflag) 7556893Sfenner printf("(vjc type=error) "); 7656893Sfenner return -1; 7756893Sfenner default: 7856893Sfenner if (eflag) 7956893Sfenner printf("(vjc type=0x%02x) ", bp[0] & 0xf0); 8056893Sfenner return -1; 8156893Sfenner } 8256893Sfenner} 83