A Discrete-Event Network Simulator
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wimax-mac-to-mac-header.cc
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2010 INRIA, UDcast
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
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*
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*/
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#include "wimax-mac-to-mac-header.h"
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#include "ns3/address-utils.h"
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#include "ns3/uinteger.h"
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#include "ns3/log.h"
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namespace
ns3 {
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NS_OBJECT_ENSURE_REGISTERED (WimaxMacToMacHeader);
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WimaxMacToMacHeader::WimaxMacToMacHeader (
void
)
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: m_len (0)
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{
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}
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WimaxMacToMacHeader::WimaxMacToMacHeader (uint32_t len)
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: m_len (len)
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{
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}
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WimaxMacToMacHeader::~WimaxMacToMacHeader (
void
)
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{
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}
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TypeId
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WimaxMacToMacHeader::GetTypeId (
void
)
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{
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static
TypeId tid =
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TypeId (
"ns3::WimaxMacToMacHeader"
).SetParent<Header> ().AddConstructor<WimaxMacToMacHeader> ();
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return
tid;
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}
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TypeId
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WimaxMacToMacHeader::GetInstanceTypeId
(
void
)
const
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{
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return
GetTypeId ();
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}
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uint8_t
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WimaxMacToMacHeader::GetSizeOfLen (
void
)
const
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{
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uint8_t sizeOfLen = 1;
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if
(m_len > 127)
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{
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sizeOfLen = 2;
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uint64_t testValue = 0xFF;
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while
(m_len > testValue)
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{
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sizeOfLen++;
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testValue *= 0xFF;
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}
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}
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return
sizeOfLen;
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}
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uint32_t
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WimaxMacToMacHeader::GetSerializedSize
(
void
)
const
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{
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uint8_t sizeOfLen = GetSizeOfLen ();
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if
(sizeOfLen==1)
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{
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return
20;
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}
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else
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{
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return
20 + sizeOfLen -1;
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}
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//return 19+sizeOfLen;
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}
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void
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WimaxMacToMacHeader::Serialize
(
Buffer::Iterator
i)
const
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{
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// The following header encoding was reverse-engineered by looking
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// at existing live pcap traces which could be opened with wireshark
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// i.e., we have no idea where this is coming from.
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//
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// 6 zeros for mac destination
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// 6 zeros for mac source
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// 2 bytes for length/type: 0x08f0
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// 2 bytes for sequence number: 0x0001
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// 2 bytes for number of tlvs: 0x0001
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// 1 byte for type of first tlv: 0x09
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// 1 byte to indicate the length of the length field of the tlv : 0x80 | 0x04
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// n bytes to indicate the size of the packet (network order)
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// n bytes for the packet data
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uint8_t zero = 0;
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for
(
int
j = 0; j < 12; j++)
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{
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i.
WriteU8
(zero);
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}
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i.
WriteU16
(0xf008);
// eth length/type
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i.
WriteU16
(0x0100);
// sequence number
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i.
WriteU16
(0x0100);
// number of tlvs
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i.
WriteU8
(0x09);
// type of first tlv
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uint8_t lenSize = GetSizeOfLen ();
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if
(lenSize == 1)
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{
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i.
WriteU8
(m_len);
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}
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else
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{
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i.
WriteU8
((lenSize-1) | 0x80);
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for
(
int
j = 0; j < lenSize - 1; j++)
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{
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i.
WriteU8
((uint8_t)(m_len >> ((lenSize - 1 - 1 - j) * 8)));
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}
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}
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}
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uint32_t
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WimaxMacToMacHeader::Deserialize
(
Buffer::Iterator
start)
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{
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// not needed here
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return
20;
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}
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void
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WimaxMacToMacHeader::Print
(std::ostream &os)
const
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{
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}
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};
ns3::Buffer::Iterator
iterator in a Buffer instance
Definition:
buffer.h:98
ns3::Buffer::Iterator::WriteU16
void WriteU16(uint16_t data)
Definition:
buffer.cc:895
ns3::WimaxMacToMacHeader::GetSerializedSize
uint32_t GetSerializedSize(void) const
Definition:
wimax-mac-to-mac-header.cc:78
ns3::Buffer::Iterator::WriteU8
void WriteU8(uint8_t data)
Definition:
buffer.h:690
ns3::WimaxMacToMacHeader::Serialize
void Serialize(Buffer::Iterator start) const
Definition:
wimax-mac-to-mac-header.cc:93
ns3::WimaxMacToMacHeader::Print
virtual void Print(std::ostream &os) const
Definition:
wimax-mac-to-mac-header.cc:143
ns3::WimaxMacToMacHeader::GetInstanceTypeId
virtual TypeId GetInstanceTypeId(void) const
Definition:
wimax-mac-to-mac-header.cc:54
ns3::WimaxMacToMacHeader::Deserialize
uint32_t Deserialize(Buffer::Iterator start)
Definition:
wimax-mac-to-mac-header.cc:136
src
wimax
model
wimax-mac-to-mac-header.cc
Generated on Sun Mar 16 2014 11:25:13 for ns-3 by
1.8.6