The IPv4 representation of a network interface. More...

#include <ipv4-interface.h>

Inheritance diagram for ns3::Ipv4Interface:

Collaboration diagram for ns3::Ipv4Interface:

Public Member Functions
	Ipv4Interface ()

virtual	~Ipv4Interface ()

bool	AddAddress (Ipv4InterfaceAddress address)

Ipv4InterfaceAddress	GetAddress (uint32_t index) const

Ptr< ArpCache >	GetArpCache () const

Ptr< NetDevice >	GetDevice (void) const

uint16_t	GetMetric (void) const

uint32_t	GetNAddresses (void) const

bool	IsDown (void) const

bool	IsForwarding (void) const

bool	IsUp (void) const

Ipv4InterfaceAddress	RemoveAddress (uint32_t index)

Ipv4InterfaceAddress	RemoveAddress (Ipv4Address address)
	Remove the given Ipv4 address from the interface. More...

void	Send (Ptr< Packet > p, Ipv4Address dest)

void	SetArpCache (Ptr< ArpCache >)

void	SetDevice (Ptr< NetDevice > device)

void	SetDown (void)

void	SetForwarding (bool val)

void	SetMetric (uint16_t metric)

void	SetNode (Ptr< Node > node)

void	SetUp (void)

Public Member Functions inherited from ns3::Object
	Object ()

virtual	~Object ()

void	AggregateObject (Ptr< Object > other)

void	Dispose (void)

AggregateIterator	GetAggregateIterator (void) const

virtual TypeId	GetInstanceTypeId (void) const

template<typename T >
Ptr< T >	GetObject (void) const

template<typename T >
Ptr< T >	GetObject (TypeId tid) const

void	Initialize (void)

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()

	SimpleRefCount (const SimpleRefCount &o)

uint32_t	GetReferenceCount (void) const

SimpleRefCount &	operator= (const SimpleRefCount &o)

void	Ref (void) const

void	Unref (void) const

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

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)

Static Public Member Functions
static TypeId	GetTypeId (void)

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

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)

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

Protected Member Functions
virtual void	DoDispose (void)

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)

virtual void	DoInitialize (void)

virtual void	NotifyNewAggregate (void)

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

virtual void	NotifyConstructionCompleted (void)

Private Types
typedef std::list < Ipv4InterfaceAddress >	Ipv4InterfaceAddressList

typedef std::list < Ipv4InterfaceAddress > ::const_iterator	Ipv4InterfaceAddressListCI

typedef std::list < Ipv4InterfaceAddress > ::iterator	Ipv4InterfaceAddressListI

Private Member Functions
void	DoSetup (void)

Private Attributes
Ptr< ArpCache >	m_cache

Ptr< NetDevice >	m_device

bool	m_forwarding

Ipv4InterfaceAddressList	m_ifaddrs

bool	m_ifup

uint16_t	m_metric

Ptr< Node >	m_node

Detailed Description

The IPv4 representation of a network interface.

This class roughly corresponds to the struct in_device of Linux; the main purpose is to provide address-family specific information (addresses) about an interface.

By default, Ipv4 interface are created in the "down" state no IP addresses. Before becoming useable, the user must add an address of some type and invoke Setup on them.

Config Paths

ns3::Ipv4Interface is accessible through the following paths with Config::Set and Config::Connect:

/NodeList/[i]/$ns3::Ipv4L3Protocol/InterfaceList/[i]

Attributes

ArpCache: The arp cache for this ipv4 interface
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::ArpCache >
- Initial value: 0
- Flags: construct write read

No TraceSources are defined for this type.

Definition at line 49 of file ipv4-interface.h.

Member Typedef Documentation

typedef std::list<Ipv4InterfaceAddress> ns3::Ipv4Interface::Ipv4InterfaceAddressList

private

Definition at line 168 of file ipv4-interface.h.

typedef std::list<Ipv4InterfaceAddress>::const_iterator ns3::Ipv4Interface::Ipv4InterfaceAddressListCI

private

Definition at line 169 of file ipv4-interface.h.

typedef std::list<Ipv4InterfaceAddress>::iterator ns3::Ipv4Interface::Ipv4InterfaceAddressListI

private

Definition at line 170 of file ipv4-interface.h.

Constructor & Destructor Documentation

ns3::Ipv4Interface::Ipv4Interface ( )

By default, Ipv4 interface are created in the "down" state with no IP addresses. Before becoming useable, the user must invoke SetUp on them once an Ipv4 address and mask have been set.

Definition at line 60 of file ipv4-interface.cc.

References NS_LOG_FUNCTION.

ns3::Ipv4Interface::~Ipv4Interface ( )

virtual

Definition at line 71 of file ipv4-interface.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

bool ns3::Ipv4Interface::AddAddress ( Ipv4InterfaceAddress address )

Parameters

address The Ipv4InterfaceAddress to add to the interface

Returns: true if succeeded

Definition at line 295 of file ipv4-interface.cc.

References m_ifaddrs, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::AddAddress().

Here is the caller graph for this function:

void ns3::Ipv4Interface::DoDispose ( void )

protectedvirtual

This method is called by Object::Dispose or by the object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overriden version of this method and chain up to their parent's implementation once they are done. i.e., for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose method.

It is safe to call GetObject from within this method.

Reimplemented from ns3::Object.

Definition at line 77 of file ipv4-interface.cc.

References ns3::Object::DoDispose(), m_device, m_node, and NS_LOG_FUNCTION.

Here is the call graph for this function:

void ns3::Ipv4Interface::DoSetup ( void )

private

Definition at line 102 of file ipv4-interface.cc.

References ns3::Object::GetObject(), m_cache, m_device, m_node, and NS_LOG_FUNCTION.

Referenced by SetDevice(), and SetNode().

Here is the call graph for this function:

Here is the caller graph for this function:

Ipv4InterfaceAddress ns3::Ipv4Interface::GetAddress ( uint32_t index ) const

Parameters

index Index of Ipv4InterfaceAddress to return

Returns: The Ipv4InterfaceAddress address whose index is i

Definition at line 303 of file ipv4-interface.cc.

References m_ifaddrs, NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::GetAddress(), and ns3::Ipv4EndPointDemux::Lookup().

Here is the caller graph for this function:

Ptr< ArpCache > ns3::Ipv4Interface::GetArpCache ( ) const

Returns: ARP cache used by this interface

Definition at line 146 of file ipv4-interface.cc.

References m_cache, and NS_LOG_FUNCTION.

Referenced by GetTypeId().

Here is the caller graph for this function:

Ptr< NetDevice > ns3::Ipv4Interface::GetDevice ( void ) const

Returns: the underlying NetDevice. This method cannot return zero.

Definition at line 118 of file ipv4-interface.cc.

References m_device, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4RawSocketImpl::ForwardUp(), ns3::UdpSocketImpl::ForwardUp(), ns3::Ipv4L3Protocol::GetMtu(), ns3::Ipv4L3Protocol::GetNetDevice(), ns3::Ipv4EndPointDemux::Lookup(), ns3::Ipv4L3Protocol::Receive(), and ns3::Ipv4L3Protocol::Send().

Here is the caller graph for this function:

uint16_t ns3::Ipv4Interface::GetMetric ( void ) const

Returns: configured routing metric (cost) of this interface

Note: This is synonymous to the Metric value that ifconfig prints out. It is used by ns-3 global routing, but other routing daemons may choose to ignore it.

Definition at line 132 of file ipv4-interface.cc.

References m_metric, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::GetMetric().

Here is the caller graph for this function:

uint32_t ns3::Ipv4Interface::GetNAddresses ( void ) const

Returns: the number of Ipv4InterfaceAddresss stored on this interface

Definition at line 288 of file ipv4-interface.cc.

References m_ifaddrs, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::GetNAddresses(), and ns3::Ipv4EndPointDemux::Lookup().

Here is the caller graph for this function:

TypeId ns3::Ipv4Interface::GetTypeId ( void )

static

Definition at line 40 of file ipv4-interface.cc.

References GetArpCache(), SetArpCache(), and ns3::TypeId::SetParent().

Here is the call graph for this function:

bool ns3::Ipv4Interface::IsDown ( void ) const

Returns: true if this interface is disabled, false otherwise.

Definition at line 165 of file ipv4-interface.cc.

References m_ifup, and NS_LOG_FUNCTION.

bool ns3::Ipv4Interface::IsForwarding ( void ) const

Returns: true if this interface is enabled for IP forwarding of input datagrams

Definition at line 186 of file ipv4-interface.cc.

References m_forwarding, and NS_LOG_FUNCTION.

bool ns3::Ipv4Interface::IsUp ( void ) const

These are IP interface states and may be distinct from NetDevice states, such as found in real implementations (where the device may be down but IP interface state is still up).

Returns: true if this interface is enabled, false otherwise.

These are IP interface states and may be distinct from NetDevice states, such as found in real implementations (where the device may be down but IP interface state is still up).

Definition at line 158 of file ipv4-interface.cc.

References m_ifup, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::IsUp(), ns3::Ipv4L3Protocol::Receive(), and Send().

Here is the caller graph for this function:

Ipv4InterfaceAddress ns3::Ipv4Interface::RemoveAddress ( uint32_t index )

Parameters

index Index of Ipv4InterfaceAddress to remove

Returns: The Ipv4InterfaceAddress address whose index is index

Definition at line 324 of file ipv4-interface.cc.

References m_ifaddrs, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

Ipv4InterfaceAddress ns3::Ipv4Interface::RemoveAddress ( Ipv4Address address )

Remove the given Ipv4 address from the interface.

Parameters

address The Ipv4 address to remove

Returns: The removed Ipv4 interface address; The null interface address if the interface did not contain the address or if loopback address was passed as argument

Definition at line 350 of file ipv4-interface.cc.

References first::address, ns3::Ipv4Address::GetLoopback(), m_ifaddrs, NS_LOG_FUNCTION, and NS_LOG_WARN.

Here is the call graph for this function:

void ns3::Ipv4Interface::Send	(	Ptr< Packet >	p,
		Ipv4Address	dest
	)

Parameters

p	packet to send
dest	next hop address of packet.

This method will eventually call the private SendTo method which must be implemented by subclasses.

Todo:: additional checks needed here (such as whether multicast goes to loopback)?

Definition at line 200 of file ipv4-interface.cc.

References ns3::Object::GetObject(), ns3::Ipv4Address::IsBroadcast(), ns3::Ipv4Address::IsMulticast(), ns3::Ipv4Address::IsSubnetDirectedBroadcast(), IsUp(), m_cache, m_device, m_ifaddrs, m_node, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::NetDevice::PACKET_HOST, and ns3::Ipv4L3Protocol::PROT_NUMBER.

Referenced by ns3::Ipv4L3Protocol::Send().

Here is the call graph for this function:

Here is the caller graph for this function:

void ns3::Ipv4Interface::SetArpCache ( Ptr< ArpCache > a )

Definition at line 139 of file ipv4-interface.cc.

References m_cache, and NS_LOG_FUNCTION.

Referenced by GetTypeId().

Here is the caller graph for this function:

void ns3::Ipv4Interface::SetDevice ( Ptr< NetDevice > device )

Definition at line 94 of file ipv4-interface.cc.

References DoSetup(), m_device, and NS_LOG_FUNCTION.

Here is the call graph for this function:

void ns3::Ipv4Interface::SetDown ( void )

Disable this interface

Definition at line 179 of file ipv4-interface.cc.

References m_ifup, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::SetDown().

Here is the caller graph for this function:

void ns3::Ipv4Interface::SetForwarding ( bool val )

Parameters

val	Whether to enable or disable IP forwarding for input datagrams

Definition at line 193 of file ipv4-interface.cc.

References m_forwarding, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::SetForwarding().

Here is the caller graph for this function:

void ns3::Ipv4Interface::SetMetric ( uint16_t metric )

Parameters

metric configured routing metric (cost) of this interface

Note: This is synonymous to the Metric value that ifconfig prints out. It is used by ns-3 global routing, but other routing daemons choose to ignore it.

Definition at line 125 of file ipv4-interface.cc.

References m_metric, and NS_LOG_FUNCTION.

Referenced by ns3::Ipv4L3Protocol::SetMetric().

Here is the caller graph for this function: