A Discrete-Event Network Simulator
API
epc-gtpu-header.h
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1/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation;
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Author: Jaume Nin <jnin@cttc.cat>
19 */
20
21
22#ifndef EPS_GTPU_V1_H
23#define EPS_GTPU_V1_H
24
25#include <ns3/ptr.h>
26#include <ns3/header.h>
27#include <ns3/ipv4-header.h>
28
29namespace ns3 {
30
31class Packet;
32
33
41class GtpuHeader : public Header
42{
43public:
48 static TypeId GetTypeId (void);
49 GtpuHeader ();
50 virtual ~GtpuHeader ();
51 virtual TypeId GetInstanceTypeId (void) const;
52 virtual uint32_t GetSerializedSize (void) const;
53 virtual void Serialize (Buffer::Iterator start) const;
55 virtual void Print (std::ostream &os) const;
56
61 bool GetExtensionHeaderFlag () const;
66 uint16_t GetLength () const;
71 uint8_t GetMessageType () const;
76 uint8_t GetNPduNumber () const;
81 bool GetNPduNumberFlag () const;
86 uint8_t GetNextExtensionType () const;
91 bool GetProtocolType () const;
96 uint16_t GetSequenceNumber () const;
101 bool GetSequenceNumberFlag () const;
106 uint32_t GetTeid () const;
111 uint8_t GetVersion () const;
116 void SetExtensionHeaderFlag (bool extensionHeaderFlag);
121 void SetLength (uint16_t length);
126 void SetMessageType (uint8_t messageType);
131 void SetNPduNumber (uint8_t nPduNumber);
136 void SetNPduNumberFlag (bool nPduNumberFlag);
141 void SetNextExtensionType (uint8_t nextExtensionType);
146 void SetProtocolType (bool protocolType);
151 void SetSequenceNumber (uint16_t sequenceNumber);
156 void SetSequenceNumberFlag (bool sequenceNumberFlag);
161 void SetTeid (uint32_t teid);
166 void SetVersion (uint8_t version);
167
174 bool operator == (const GtpuHeader& b) const;
175
176
177private:
181 uint8_t m_version; // really a 3 uint3_t
182
188
196
221 uint16_t m_length;
222
247
248};
249
250} // namespace ns3
251
252#endif /* EPS_GTPU_V1_H */
iterator in a Buffer instance
Definition: buffer.h:99
Implementation of the GPRS Tunnelling Protocol header according to GTPv1-U Release 10 as per 3Gpp TS ...
virtual ~GtpuHeader()
void SetSequenceNumber(uint16_t sequenceNumber)
Set sequence number function.
uint8_t m_nextExtensionType
This field defines the type of Extension Header that follows this field in the GTP-PDU.
void SetExtensionHeaderFlag(bool extensionHeaderFlag)
Set extension header flag function.
static TypeId GetTypeId(void)
Get the type ID.
uint32_t m_teid
This field unambiguously identifies a tunnel endpoint in the receiving GTP-U protocol entity.
bool m_nPduNumberFlag
This flag indicates the presence of a meaningful value of the N-PDU Number field.
bool operator==(const GtpuHeader &b) const
Equality operator.
bool m_extensionHeaderFlag
This flag indicates the presence of a meaningful value of the Next Extension Header field.
virtual void Print(std::ostream &os) const
void SetTeid(uint32_t teid)
Set TEID function.
bool GetExtensionHeaderFlag() const
Get extension header flag function.
void SetVersion(uint8_t version)
Set version function.
bool m_protocolType
This bit is used as a protocol discriminator between GTP (when PT is '1') and GTP' (when PT is '0').
virtual TypeId GetInstanceTypeId(void) const
Get the most derived TypeId for this Object.
uint8_t m_messageType
This field indicates the type of GTP-U message.
virtual uint32_t Deserialize(Buffer::Iterator start)
uint8_t GetVersion() const
Get version function.
bool GetSequenceNumberFlag() const
Get sequence number flag function.
bool GetNPduNumberFlag() const
Get type of GTP-U message function.
virtual uint32_t GetSerializedSize(void) const
void SetNPduNumber(uint8_t nPduNumber)
Set NPDU number function.
uint8_t m_nPduNumber
This field is used at the Inter SGSN Routeing Area Update procedure and some inter-system handover pr...
void SetNPduNumberFlag(bool nPduNumberFlag)
Sets the flag that indicates the presence of a meaningful value of the N-PDU Number field.
uint16_t m_sequenceNumber
If Sequence Number field is used for G-PDUs (T-PDUs+headers), an increasing sequence number for T-PDU...
uint8_t GetNPduNumber() const
Get NPDU number function.
uint16_t GetLength() const
Get length function.
void SetMessageType(uint8_t messageType)
Set message type function.
uint8_t m_version
This field is used to determine the version of the GTPU-U protocol.
uint16_t m_length
This field indicates the length in octets of the payload, i.e.
void SetSequenceNumberFlag(bool sequenceNumberFlag)
Set sequence number flag function.
virtual void Serialize(Buffer::Iterator start) const
uint16_t GetSequenceNumber() const
Get protocol type function.
uint32_t GetTeid() const
Get a tunnel endpoint identificator (TEID)
bool GetProtocolType() const
Get protocol type function.
void SetProtocolType(bool protocolType)
Set protocol type function.
uint8_t GetMessageType() const
Get message type function.
uint8_t GetNextExtensionType() const
Get next extension type function.
bool m_sequenceNumberFlag
This flag indicates the presence of a meaningful value of the Sequence Number field.
void SetNextExtensionType(uint8_t nextExtensionType)
Set next extension type function.
void SetLength(uint16_t length)
Set the length in octets of the payload.
Protocol header serialization and deserialization.
Definition: header.h:43
a unique identifier for an interface.
Definition: type-id.h:59
string version
Definition: conf.py:51
Every class exported by the ns3 library is enclosed in the ns3 namespace.
def start()
Definition: core.py:1852