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 MASH Research 00017 * Group at the University of California Berkeley. 00018 * 4. Neither the name of the University nor of the Research Group may be 00019 * used 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: /nfs/jade/vint/CVSROOT/ns-2/common/ip.h,v 1.15 2000/09/01 03:04:05 haoboy Exp $ 00035 */ 00036 00037 /* a network layer; basically like IPv6 */ 00038 #ifndef ns_ip_h 00039 #define ns_ip_h 00040 00041 #include "config.h" 00042 #include "packet.h" 00043 00044 00045 #define IP_HDR_LEN 20 00046 #define IP_DEF_TTL 32 00047 00048 // The following undef is to suppress warnings on systems were 00049 // IP_BROADCAST is defined. 00050 #ifdef IP_BROADCAST 00051 #undef IP_BROADCAST 00052 #endif 00053 00054 #define IP_BROADCAST ((u_int32_t) 0xffffffff) 00055 00056 struct hdr_ip { 00057 /* common to IPv{4,6} */ 00058 ns_addr_t src_; 00059 ns_addr_t dst_; 00060 int ttl_; 00061 00062 /* Monarch extn */ 00063 // u_int16_t sport_; 00064 // u_int16_t dport_; 00065 00066 /* IPv6 */ 00067 int fid_; /* flow id */ 00068 int prio_; 00069 00070 static int offset_; 00071 inline static int& offset() { return offset_; } 00072 inline static hdr_ip* access(const Packet* p) { 00073 return (hdr_ip*) p->access(offset_); 00074 } 00075 00076 /* per-field member acces functions */ 00077 ns_addr_t& src() { return (src_); } 00078 nsaddr_t& saddr() { return (src_.addr_); } 00079 int32_t& sport() { return src_.port_;} 00080 00081 ns_addr_t& dst() { return (dst_); } 00082 nsaddr_t& daddr() { return (dst_.addr_); } 00083 int32_t& dport() { return dst_.port_;} 00084 int& ttl() { return (ttl_); } 00085 /* ipv6 fields */ 00086 int& flowid() { return (fid_); } 00087 int& prio() { return (prio_); } 00088 }; 00089 00090 #endif
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