00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- 00002 * 00003 * Copyright (c) 1997 Regents of the University of California. 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. All advertising materials mentioning features or use of this software 00015 * must display the following acknowledgement: 00016 * This product includes software developed by the Computer Systems 00017 * Engineering Group at Lawrence Berkeley Laboratory. 00018 * 4. Neither the name of the University nor of the Laboratory may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 * 00034 * $Header: /cvsroot/nsnam/ns-2/common/encap.h,v 1.3 2000/09/01 03:04:05 haoboy Exp $ 00035 */ 00036 00037 #ifndef ns_encap_h 00038 #define ns_encap_h 00039 00040 #include "packet.h" 00041 00042 struct hdr_encap { 00043 void encap(Packet* p) { ep = p; } 00044 Packet *decap() { return ep; } 00045 00046 // Header access methods 00047 static int offset_; // required by PacketHeaderManager 00048 inline static int& offset() { return offset_; } 00049 inline static hdr_encap* access(const Packet* p) { 00050 return (hdr_encap*) p->access(offset_); 00051 } 00052 private: 00053 Packet *ep; 00054 }; 00055 00056 #endif // ns_encap.h
1.7.1