A Discrete-Event Network Simulator
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ipv4-header.h
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005 INRIA
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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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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#ifndef IPV4_HEADER_H
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#define IPV4_HEADER_H
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#include "ns3/header.h"
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#include "ns3/ipv4-address.h"
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namespace
ns3 {
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class
Ipv4Header
:
public
Header
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{
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public
:
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Ipv4Header
();
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void
EnableChecksum
(
void
);
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void
SetPayloadSize
(uint16_t size);
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void
SetIdentification
(uint16_t identification);
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void
SetTos
(uint8_t tos);
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enum
DscpType
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{
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DscpDefault = 0x00,
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CS1 = 0x20,
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AF11 = 0x28,
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AF12 = 0x30,
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AF13 = 0x38,
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CS2 = 0x40,
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AF21 = 0x48,
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AF22 = 0x50,
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AF23 = 0x58,
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CS3 = 0x60,
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AF31 = 0x68,
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AF32 = 0x70,
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AF33 = 0x78,
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CS4 = 0x80,
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AF41 = 0x88,
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AF42 = 0x90,
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AF43 = 0x98,
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CS5 = 0xA0,
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EF = 0xB8,
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CS6 = 0xC0,
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CS7 = 0xE0
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};
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void
SetDscp
(
DscpType
dscp);
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enum
EcnType
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{
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NotECT = 0x00,
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ECT1 = 0x01,
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ECT0 = 0x02,
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CE = 0x03
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};
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void
SetEcn
(
EcnType
ecn);
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void
SetMoreFragments
(
void
);
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void
SetLastFragment
(
void
);
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void
SetDontFragment
(
void
);
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void
SetMayFragment
(
void
);
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void
SetFragmentOffset
(uint16_t offsetBytes);
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void
SetTtl
(uint8_t ttl);
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void
SetProtocol
(uint8_t num);
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void
SetSource
(
Ipv4Address
source);
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void
SetDestination
(
Ipv4Address
destination);
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uint16_t
GetPayloadSize
(
void
)
const
;
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uint16_t
GetIdentification
(
void
)
const
;
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uint8_t
GetTos
(
void
)
const
;
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DscpType
GetDscp
(
void
)
const
;
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std::string
DscpTypeToString
(
DscpType
dscp)
const
;
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EcnType
GetEcn
(
void
)
const
;
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std::string
EcnTypeToString
(
EcnType
ecn)
const
;
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bool
IsLastFragment
(
void
)
const
;
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bool
IsDontFragment
(
void
)
const
;
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uint16_t
GetFragmentOffset
(
void
)
const
;
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uint8_t
GetTtl
(
void
)
const
;
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uint8_t
GetProtocol
(
void
)
const
;
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Ipv4Address
GetSource
(
void
)
const
;
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Ipv4Address
GetDestination
(
void
)
const
;
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bool
IsChecksumOk
(
void
)
const
;
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static
TypeId
GetTypeId (
void
);
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virtual
TypeId
GetInstanceTypeId
(
void
)
const
;
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virtual
void
Print
(std::ostream &os)
const
;
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virtual
uint32_t
GetSerializedSize
(
void
)
const
;
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virtual
void
Serialize
(
Buffer::Iterator
start)
const
;
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virtual
uint32_t
Deserialize
(
Buffer::Iterator
start);
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private
:
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enum
FlagsE {
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DONT_FRAGMENT = (1<<0),
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MORE_FRAGMENTS = (1<<1)
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};
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bool
m_calcChecksum;
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uint16_t m_payloadSize;
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uint16_t m_identification;
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uint32_t m_tos : 8;
//Also used as DSCP + ECN value
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uint32_t m_ttl : 8;
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uint32_t m_protocol : 8;
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uint32_t m_flags : 3;
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uint16_t m_fragmentOffset;
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Ipv4Address m_source;
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Ipv4Address m_destination;
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uint16_t m_checksum;
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bool
m_goodChecksum;
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uint16_t m_headerSize;
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};
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}
// namespace ns3
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#endif
/* IPV4_HEADER_H */
ns3::Header
Protocol header serialization and deserialization.
Definition:
header.h:42
ns3::Ipv4Header::SetSource
void SetSource(Ipv4Address source)
Definition:
ipv4-header.cc:284
ns3::Ipv4Header::SetPayloadSize
void SetPayloadSize(uint16_t size)
Definition:
ipv4-header.cc:56
ns3::Ipv4Header::GetPayloadSize
uint16_t GetPayloadSize(void) const
Definition:
ipv4-header.cc:62
ns3::Ipv4Header::SetDestination
void SetDestination(Ipv4Address destination)
Definition:
ipv4-header.cc:297
ns3::Ipv4Header::DscpType
DscpType
DiffServ Code Points Code Points defined in Assured Forwarding (AF) RFC 2597 Expedited Forwarding (EF...
Definition:
ipv4-header.h:64
ns3::Ipv4Header::GetDestination
Ipv4Address GetDestination(void) const
Definition:
ipv4-header.cc:303
ns3::Ipv4Header::GetProtocol
uint8_t GetProtocol(void) const
Definition:
ipv4-header.cc:271
ns3::Ipv4Header::GetIdentification
uint16_t GetIdentification(void) const
Definition:
ipv4-header.cc:69
ns3::Ipv4Header::IsDontFragment
bool IsDontFragment(void) const
Definition:
ipv4-header.cc:231
ns3::Ipv4Header::SetFragmentOffset
void SetFragmentOffset(uint16_t offsetBytes)
Definition:
ipv4-header.cc:238
ns3::Ipv4Header::GetSource
Ipv4Address GetSource(void) const
Definition:
ipv4-header.cc:290
ns3::Ipv4Header::SetProtocol
void SetProtocol(uint8_t num)
Definition:
ipv4-header.cc:277
ns3::Ipv4Header::DscpTypeToString
std::string DscpTypeToString(DscpType dscp) const
Definition:
ipv4-header.cc:113
ns3::Ipv4Header::SetDontFragment
void SetDontFragment(void)
Definition:
ipv4-header.cc:219
ns3::Buffer::Iterator
iterator in a Buffer instance
Definition:
buffer.h:98
ns3::Ipv4Header
Packet header for IPv4.
Definition:
ipv4-header.h:31
ns3::Ipv4Header::SetLastFragment
void SetLastFragment(void)
Definition:
ipv4-header.cc:206
ns3::Ipv4Header::GetDscp
DscpType GetDscp(void) const
Definition:
ipv4-header.cc:105
ns3::Ipv4Header::Ipv4Header
Ipv4Header()
Construct a null IPv4 header.
Definition:
ipv4-header.cc:33
ns3::Ipv4Header::EnableChecksum
void EnableChecksum(void)
Enable checksum calculation for this header.
Definition:
ipv4-header.cc:49
ns3::Ipv4Header::SetDscp
void SetDscp(DscpType dscp)
Set DSCP Field.
Definition:
ipv4-header.cc:89
ns3::Ipv4Header::SetIdentification
void SetIdentification(uint16_t identification)
Definition:
ipv4-header.cc:75
ns3::Ipv4Header::SetMayFragment
void SetMayFragment(void)
Definition:
ipv4-header.cc:225
ns3::Ipv4Header::SetMoreFragments
void SetMoreFragments(void)
Definition:
ipv4-header.cc:200
ns3::Ipv4Header::IsLastFragment
bool IsLastFragment(void) const
Definition:
ipv4-header.cc:212
ns3::Ipv4Header::SetTos
void SetTos(uint8_t tos)
Definition:
ipv4-header.cc:82
ns3::Ipv4Header::Print
virtual void Print(std::ostream &os) const
Definition:
ipv4-header.cc:333
ns3::Ipv4Header::GetInstanceTypeId
virtual TypeId GetInstanceTypeId(void) const
Definition:
ipv4-header.cc:327
ns3::Ipv4Address
Ipv4 addresses are stored in host order in this class.
Definition:
ipv4-address.h:38
ns3::Ipv4Header::GetFragmentOffset
uint16_t GetFragmentOffset(void) const
Definition:
ipv4-header.cc:246
ns3::Ipv4Header::SetEcn
void SetEcn(EcnType ecn)
Set ECN Field.
Definition:
ipv4-header.cc:97
ns3::Ipv4Header::SetTtl
void SetTtl(uint8_t ttl)
Definition:
ipv4-header.cc:258
ns3::Ipv4Header::Serialize
virtual void Serialize(Buffer::Iterator start) const
Definition:
ipv4-header.cc:381
ns3::Ipv4Header::IsChecksumOk
bool IsChecksumOk(void) const
Definition:
ipv4-header.cc:311
ns3::Ipv4Header::GetTtl
uint8_t GetTtl(void) const
Definition:
ipv4-header.cc:264
ns3::Ipv4Header::GetTos
uint8_t GetTos(void) const
Definition:
ipv4-header.cc:194
ns3::Ipv4Header::EcnTypeToString
std::string EcnTypeToString(EcnType ecn) const
Definition:
ipv4-header.cc:175
ns3::Ipv4Header::GetSerializedSize
virtual uint32_t GetSerializedSize(void) const
Definition:
ipv4-header.cc:373
ns3::TypeId
a unique identifier for an interface.
Definition:
type-id.h:44
ns3::Ipv4Header::GetEcn
EcnType GetEcn(void) const
Definition:
ipv4-header.cc:167
ns3::Ipv4Header::EcnType
EcnType
ECN Type defined in RFC 3168.
Definition:
ipv4-header.h:105
ns3::Ipv4Header::Deserialize
virtual uint32_t Deserialize(Buffer::Iterator start)
Definition:
ipv4-header.cc:421
src
internet
model
ipv4-header.h
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