Route Error (RERR) Message Format. More...

#include <aodv-packet.h>

Inheritance diagram for ns3::aodv::RerrHeader:

Collaboration diagram for ns3::aodv::RerrHeader:

Public Member Functions
	RerrHeader ()
	c-tor More...

bool	AddUnDestination (Ipv4Address dst, uint32_t seqNo)
	Add unreachable node address and its sequence number in RERR header. More...

void	Clear ()
	Clear header. More...

uint8_t	GetDestCount () const
	Return number of unreachable destinations in RERR message. More...

bool	operator== (RerrHeader const &o) const

bool	RemoveUnDestination (std::pair< Ipv4Address, uint32_t > &un)
	Delete pair (address + sequence number) from REER header, if the number of unreachable destinations > 0. More...

No delete flag
void	SetNoDelete (bool f)

bool	GetNoDelete () const

Public Member Functions inherited from ns3::Header
virtual	~Header ()

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const

bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const

void	SetAttribute (std::string name, const AttributeValue &value)

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Private Attributes
uint8_t	m_flag
	No delete flag. More...

uint8_t	m_reserved
	Not used. More...

std::map< Ipv4Address, uint32_t >	m_unreachableDstSeqNo
	List of Unreachable destination: IP addresses and sequence numbers. More...

Header serialization/deserialization
TypeId	GetInstanceTypeId () const

uint32_t	GetSerializedSize () const

void	Serialize (Buffer::Iterator i) const

uint32_t	Deserialize (Buffer::Iterator start)

void	Print (std::ostream &os) const

static TypeId	GetTypeId ()

Additional Inherited Members
Static Public Member Functions inherited from ns3::Header
static TypeId	GetTypeId (void)

Static Public Member Functions inherited from ns3::Chunk
static TypeId	GetTypeId (void)

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)
	This method is invoked once all member attributes have been initialized. More...

Detailed Description

Route Error (RERR) Message Format.

Doxygen introspection did not find any typical Config paths.

0                   1                   2                   3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|     Type      |N|          Reserved           |   DestCount   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|            Unreachable Destination IP Address (1)             |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|         Unreachable Destination Sequence Number (1)           |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
|  Additional Unreachable Destination IP Addresses (if needed)  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Additional Unreachable Destination Sequence Numbers (if needed)|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

No Attributes are defined for this type.
No TraceSources are defined for this type.

Definition at line 288 of file aodv-packet.h.

Constructor & Destructor Documentation

ns3::aodv::RerrHeader::RerrHeader ( )

c-tor

Definition at line 495 of file aodv-packet.cc.

Member Function Documentation

bool ns3::aodv::RerrHeader::AddUnDestination	(	Ipv4Address	dst,
		uint32_t	seqNo
	)

Add unreachable node address and its sequence number in RERR header.

Returns: false if we already added maximum possible number of unreachable destinations

Definition at line 589 of file aodv-packet.cc.

References GetDestCount(), m_unreachableDstSeqNo, and NS_ASSERT.

Referenced by ns3::aodv::RerrHeaderTest::DoRun(), ns3::aodv::RoutingProtocol::RecvError(), ns3::aodv::RoutingProtocol::SendRerrWhenBreaksLinkToNextHop(), and ns3::aodv::RoutingProtocol::SendRerrWhenNoRouteToForward().

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void ns3::aodv::RerrHeader::Clear ( )

Clear header.

Definition at line 611 of file aodv-packet.cc.

References m_flag, m_reserved, and m_unreachableDstSeqNo.

Referenced by ns3::aodv::RoutingProtocol::RecvError(), and ns3::aodv::RoutingProtocol::SendRerrWhenBreaksLinkToNextHop().

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uint32_t ns3::aodv::RerrHeader::Deserialize ( Buffer::Iterator start )

virtual

Parameters

start an iterator which points to where the header should written.

Returns: the number of bytes read.

This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet. The data read is expected to match bit-for-bit the representation of this header in real networks.

Implements ns3::Header.

Definition at line 540 of file aodv-packet.cc.

References first::address, ns3::Buffer::Iterator::GetDistanceFrom(), GetSerializedSize(), m_flag, m_reserved, m_unreachableDstSeqNo, NS_ASSERT, ns3::ReadFrom(), ns3::Buffer::Iterator::ReadNtohU32(), ns3::Buffer::Iterator::ReadU8(), and visualizer.core::start().

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uint8_t ns3::aodv::RerrHeader::GetDestCount ( ) const

inline

Return number of unreachable destinations in RERR message.

Definition at line 322 of file aodv-packet.h.

References m_unreachableDstSeqNo.

Referenced by AddUnDestination(), ns3::aodv::RerrHeaderTest::DoRun(), GetSerializedSize(), operator==(), ns3::aodv::RoutingProtocol::RecvError(), ns3::aodv::RoutingProtocol::SendRerrWhenBreaksLinkToNextHop(), and Serialize().

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TypeId ns3::aodv::RerrHeader::GetInstanceTypeId ( ) const

virtual

Returns: the TypeId associated to the most-derived type of this instance.

This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.

Implements ns3::ObjectBase.

Definition at line 514 of file aodv-packet.cc.

References GetTypeId().

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bool ns3::aodv::RerrHeader::GetNoDelete ( ) const

Definition at line 583 of file aodv-packet.cc.

References m_flag.

Referenced by ns3::aodv::RerrHeaderTest::DoRun().

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uint32_t ns3::aodv::RerrHeader::GetSerializedSize ( ) const

virtual

Returns: the expected size of the header.

This method is used by Packet::AddHeader to store a header into the byte buffer of a packet. This method should return the number of bytes which are needed to store the full header data by Serialize.

Implements ns3::Header.

Definition at line 520 of file aodv-packet.cc.

References GetDestCount().

Referenced by Deserialize(), and ns3::aodv::RerrHeaderTest::DoRun().

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TypeId ns3::aodv::RerrHeader::GetTypeId ( void )

static

Definition at line 504 of file aodv-packet.cc.

References ns3::TypeId::SetParent().

Referenced by GetInstanceTypeId().

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bool ns3::aodv::RerrHeader::operator== ( RerrHeader const & o ) const

Definition at line 619 of file aodv-packet.cc.

References GetDestCount(), m_flag, m_reserved, and m_unreachableDstSeqNo.

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void ns3::aodv::RerrHeader::Print ( std::ostream & os ) const

virtual

Parameters

os output stream This method is used by Packet::Print to print the content of a trailer as ascii data to a c++ output stream. Although the trailer is free to format its output as it wishes, it is recommended to follow a few rules to integrate with the packet pretty printer: start with flags, small field values located between a pair of parens. Values should be separated by whitespace. Follow the parens with the important fields, separated by whitespace. i.e.: (field1 val1 field2 val2 field3 val3) field4 val4 field5 val5

Implements ns3::Header.

Definition at line 562 of file aodv-packet.cc.

References m_unreachableDstSeqNo.

Referenced by ns3::aodv::operator<<().

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bool ns3::aodv::RerrHeader::RemoveUnDestination ( std::pair< Ipv4Address, uint32_t > & un )

Delete pair (address + sequence number) from REER header, if the number of unreachable destinations > 0.

Returns: true on success

Definition at line 600 of file aodv-packet.cc.

References m_unreachableDstSeqNo.

Referenced by ns3::aodv::RoutingProtocol::RecvError().

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void ns3::aodv::RerrHeader::Serialize ( Buffer::Iterator start ) const

virtual

Parameters

start an iterator which points to where the header should be written.

This method is used by Packet::AddHeader to store a header into the byte buffer of a packet. The data written is expected to match bit-for-bit the representation of this header in a real network.

Implements ns3::Header.

Definition at line 526 of file aodv-packet.cc.

References GetDestCount(), m_flag, m_reserved, m_unreachableDstSeqNo, ns3::Buffer::Iterator::WriteHtonU32(), ns3::WriteTo(), and ns3::Buffer::Iterator::WriteU8().

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