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/* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
/*
* Copyright (c) 1997 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the MASH Research
* Group at the University of California Berkeley.
* 4. Neither the name of the University nor of the Research Group may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#) $Header: /cvsroot/nsnam/ns-2/common/ip.h,v 1.16 2006/02/22 13:32:23 mahrenho Exp $
*/
/* a network layer; basically like IPv6 */
#ifndef ns_ip_h
#define ns_ip_h
#include "config.h"
#include "packet.h"
#define IP_HDR_LEN 20
#define IP_DEF_TTL 32
// The following undef is to suppress warnings on systems were
// IP_BROADCAST is defined.
#ifdef IP_BROADCAST
#undef IP_BROADCAST
#endif
// #define IP_BROADCAST ((u_int32_t) 0xffffffff)
static const u_int32_t IP_BROADCAST = ((u_int32_t) 0xffffffff);
struct hdr_ip {
/* common to IPv{4,6} */
ns_addr_t src_;
ns_addr_t dst_;
int ttl_;
/* Monarch extn */
// u_int16_t sport_;
// u_int16_t dport_;
/* IPv6 */
int fid_; /* flow id */
int prio_;
static int offset_;
inline static int& offset() { return offset_; }
inline static hdr_ip* access(const Packet* p) {
return (hdr_ip*) p->access(offset_);
}
/* per-field member acces functions */
ns_addr_t& src() { return (src_); }
nsaddr_t& saddr() { return (src_.addr_); }
int32_t& sport() { return src_.port_;}
ns_addr_t& dst() { return (dst_); }
nsaddr_t& daddr() { return (dst_.addr_); }
int32_t& dport() { return dst_.port_;}
int& ttl() { return (ttl_); }
/* ipv6 fields */
int& flowid() { return (fid_); }
int& prio() { return (prio_); }
};
#endif
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