12949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project/* $NetBSD: print-mobile.c,v 1.2 1998/09/30 08:57:01 hwr Exp $ */ 22949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 32949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project/* 42949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * (c) 1998 The NetBSD Foundation, Inc. 52949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * All rights reserved. 62949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 72949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * This code is derived from software contributed to The NetBSD Foundation 82949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * by Heiko W.Rupp <hwr@pilhuhn.de> 92949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 102949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * Redistribution and use in source and binary forms, with or without 112949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * modification, are permitted provided that the following conditions 122949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * are met: 132949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 142949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * notice, this list of conditions and the following disclaimer. 152949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 162949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 172949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * documentation and/or other materials provided with the distribution. 182949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 3. All advertising materials mentioning features or use of this software 192949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * must display the following acknowledgement: 202949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * This product includes software developed by the NetBSD 212949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * Foundation, Inc. and its contributors. 222949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 4. Neither the name of The NetBSD Foundation nor the names of its 232949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * contributors may be used to endorse or promote products derived 242949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * from this software without specific prior written permission. 252949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * 262949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 272949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 282949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 292949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 302949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 312949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 322949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 332949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 342949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 352949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 362949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * POSSIBILITY OF SUCH DAMAGE. 372949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project */ 382949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 392949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#ifdef HAVE_CONFIG_H 402949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include "config.h" 412949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#endif 422949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 432949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#ifndef lint 442949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Projectstatic const char rcsid[] _U_ = 452949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project "@(#) $Header: /tcpdump/master/tcpdump/print-mobile.c,v 1.15 2004/03/24 01:58:14 guy Exp $"; 462949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#endif 472949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 482949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include <tcpdump-stdinc.h> 492949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 502949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include <stdio.h> 512949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 522949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include "interface.h" 532949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include "addrtoname.h" 542949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#include "extract.h" /* must come after interface.h */ 552949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 562949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#define MOBILE_SIZE (8) 572949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 582949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Projectstruct mobile_ip { 592949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_int16_t proto; 602949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_int16_t hcheck; 612949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_int32_t odst; 622949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_int32_t osrc; 632949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project}; 642949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 652949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project#define OSRC_PRES 0x0080 /* old source is present */ 662949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 672949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project/* 682949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project * Deencapsulate and print a mobile-tunneled IP datagram 692949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project */ 702949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Projectvoid 712949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Projectmobile_print(const u_char *bp, u_int length) 722949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project{ 732949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project const u_char *cp = bp +8 ; 742949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project const struct mobile_ip *mob; 752949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_short proto,crc; 762949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project u_char osp =0; /* old source address present */ 772949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 782949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project mob = (const struct mobile_ip *)bp; 792949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 802949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (length < MOBILE_SIZE || !TTEST(*mob)) { 812949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project fputs("[|mobile]", stdout); 822949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project return; 832949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } 842949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project fputs("mobile: ", stdout); 852949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 862949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project proto = EXTRACT_16BITS(&mob->proto); 872949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project crc = EXTRACT_16BITS(&mob->hcheck); 882949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (proto & OSRC_PRES) { 892949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project osp=1; 902949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project cp +=4 ; 912949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } 922949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 932949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (osp) { 942949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project fputs("[S] ",stdout); 952949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (vflag) 962949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project (void)printf("%s ",ipaddr_string(&mob->osrc)); 972949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } else { 982949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project fputs("[] ",stdout); 992949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } 1002949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (vflag) { 1012949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project (void)printf("> %s ",ipaddr_string(&mob->odst)); 1022949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project (void)printf("(oproto=%d)",proto>>8); 1032949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } 1042949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project if (in_cksum((u_short *)mob, osp ? 12 : 8, 0)!=0) { 1052949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project (void)printf(" (bad checksum %d)",crc); 1062949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project } 1072949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project 1082949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project return; 1092949f58a438f6fd85f66a8b7ed4708042cde4b37The Android Open Source Project} 110