A sockets interface to UDP. More...

#include "udp-socket-impl.h"

Inheritance diagram for ns3::UdpSocketImpl:

Collaboration diagram for ns3::UdpSocketImpl:

Public Member Functions
	UdpSocketImpl ()
	Create an unbound udp socket.

	~UdpSocketImpl () override

int	Bind () override
	Allocate a local IPv4 endpoint for this socket.

int	Bind (const Address &address) override
	Allocate a local endpoint for this socket.

int	Bind6 () override
	Allocate a local IPv6 endpoint for this socket.

void	BindToNetDevice (Ptr< NetDevice > netdevice) override
	Bind a socket to specific device.

int	Close () override
	Close a socket.

int	Connect (const Address &address) override
	Initiate a connection to a remote host.

bool	GetAllowBroadcast () const override
	Query whether broadcast datagram transmissions are allowed.

SocketErrno	GetErrno () const override
	Get last error number.

Ptr< Node >	GetNode () const override
	Return the node this socket is associated with.

int	GetPeerName (Address &address) const override
	Get the peer address of a connected socket.

uint32_t	GetRxAvailable () const override
	Return number of bytes which can be returned from one or multiple calls to Recv.

SocketType	GetSocketType () const override

int	GetSockName (Address &address) const override
	Get socket address.

uint32_t	GetTxAvailable () const override
	Returns the number of bytes which can be sent in a single call to Send.

void	Ipv6JoinGroup (Ipv6Address address, Socket::Ipv6MulticastFilterMode filterMode, std::vector< Ipv6Address > sourceAddresses) override
	Joins a IPv6 multicast group.

int	Listen () override
	Listen for incoming connections.

int	MulticastJoinGroup (uint32_t interfaceIndex, const Address &groupAddress) override
	Corresponds to socket option MCAST_JOIN_GROUP.

int	MulticastLeaveGroup (uint32_t interfaceIndex, const Address &groupAddress) override
	Corresponds to socket option MCAST_LEAVE_GROUP.

Ptr< Packet >	Recv (uint32_t maxSize, uint32_t flags) override
	Read data from the socket.

Ptr< Packet >	RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress) override
	Read a single packet from the socket and retrieve the sender address.

int	Send (Ptr< Packet > p, uint32_t flags) override
	Send data (or dummy data) to the remote host.

int	SendTo (Ptr< Packet > p, uint32_t flags, const Address &address) override
	Send data to a specified peer.

bool	SetAllowBroadcast (bool allowBroadcast) override
	Configure whether broadcast datagram transmissions are allowed.

void	SetNode (Ptr< Node > node)
	Set the associated node.

void	SetUdp (Ptr< UdpL4Protocol > udp)
	Set the associated UDP L4 protocol.

int	ShutdownRecv () override

int	ShutdownSend () override

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

	~UdpSocket () override

virtual int	MulticastJoinGroup (uint32_t interface, const Address &groupAddress)=0
	Corresponds to socket option MCAST_JOIN_GROUP.

virtual int	MulticastLeaveGroup (uint32_t interface, const Address &groupAddress)=0
	Corresponds to socket option MCAST_LEAVE_GROUP.

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

	~Socket () override

virtual int	Bind ()=0
	Allocate a local IPv4 endpoint for this socket.

virtual int	Bind (const Address &address)=0
	Allocate a local endpoint for this socket.

virtual int	Bind6 ()=0
	Allocate a local IPv6 endpoint for this socket.

virtual void	BindToNetDevice (Ptr< NetDevice > netdevice)
	Bind a socket to specific device.

virtual int	Close ()=0
	Close a socket.

virtual int	Connect (const Address &address)=0
	Initiate a connection to a remote host.

virtual bool	GetAllowBroadcast () const =0
	Query whether broadcast datagram transmissions are allowed.

Ptr< NetDevice >	GetBoundNetDevice ()
	Returns socket's bound NetDevice, if any.

virtual Socket::SocketErrno	GetErrno () const =0
	Get last error number.

uint8_t	GetIpTos () const
	Query the value of IP Type of Service of this socket.

virtual uint8_t	GetIpTtl () const
	Query the value of IP Time to Live field of this socket.

virtual uint8_t	GetIpv6HopLimit () const
	Query the value of IP Hop Limit field of this socket.

uint8_t	GetIpv6Tclass () const
	Query the value of IPv6 Traffic Class field of this socket.

virtual Ptr< Node >	GetNode () const =0
	Return the node this socket is associated with.

virtual int	GetPeerName (Address &address) const =0
	Get the peer address of a connected socket.

uint8_t	GetPriority () const
	Query the priority value of this socket.

virtual uint32_t	GetRxAvailable () const =0
	Return number of bytes which can be returned from one or multiple calls to Recv.

virtual Socket::SocketType	GetSocketType () const =0

virtual int	GetSockName (Address &address) const =0
	Get socket address.

virtual uint32_t	GetTxAvailable () const =0
	Returns the number of bytes which can be sent in a single call to Send.

virtual void	Ipv6JoinGroup (Ipv6Address address)
	Joins a IPv6 multicast group without filters.

virtual void	Ipv6JoinGroup (Ipv6Address address, Ipv6MulticastFilterMode filterMode, std::vector< Ipv6Address > sourceAddresses)
	Joins a IPv6 multicast group.

virtual void	Ipv6LeaveGroup ()
	Leaves IPv6 multicast group this socket is joined to.

bool	IsIpRecvTos () const
	Ask if the socket is currently passing information about IP Type of Service up the stack.

bool	IsIpRecvTtl () const
	Ask if the socket is currently passing information about IP_TTL up the stack.

bool	IsIpv6RecvHopLimit () const
	Ask if the socket is currently passing information about IPv6 Hop Limit up the stack.

bool	IsIpv6RecvTclass () const
	Ask if the socket is currently passing information about IPv6 Traffic Class up the stack.

bool	IsRecvPktInfo () const
	Get status indicating whether enable/disable packet information to socket.

virtual int	Listen ()=0
	Listen for incoming connections.

Ptr< Packet >	Recv ()
	Read a single packet from the socket.

virtual Ptr< Packet >	Recv (uint32_t maxSize, uint32_t flags)=0
	Read data from the socket.

int	Recv (uint8_t *buf, uint32_t size, uint32_t flags)
	Recv data (or dummy data) from the remote host.

Ptr< Packet >	RecvFrom (Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address.

virtual Ptr< Packet >	RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress)=0
	Read a single packet from the socket and retrieve the sender address.

int	RecvFrom (uint8_t *buf, uint32_t size, uint32_t flags, Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address.

int	Send (const uint8_t *buf, uint32_t size, uint32_t flags)
	Send data (or dummy data) to the remote host.

int	Send (Ptr< Packet > p)
	Send data (or dummy data) to the remote host.

virtual int	Send (Ptr< Packet > p, uint32_t flags)=0
	Send data (or dummy data) to the remote host.

int	SendTo (const uint8_t *buf, uint32_t size, uint32_t flags, const Address &address)
	Send data to a specified peer.

virtual int	SendTo (Ptr< Packet > p, uint32_t flags, const Address &toAddress)=0
	Send data to a specified peer.

void	SetAcceptCallback (Callback< bool, Ptr< Socket >, const Address & > connectionRequest, Callback< void, Ptr< Socket >, const Address & > newConnectionCreated)
	Accept connection requests from remote hosts.

virtual bool	SetAllowBroadcast (bool allowBroadcast)=0
	Configure whether broadcast datagram transmissions are allowed.

void	SetCloseCallbacks (Callback< void, Ptr< Socket > > normalClose, Callback< void, Ptr< Socket > > errorClose)
	Detect socket recv() events such as graceful shutdown or error.

void	SetConnectCallback (Callback< void, Ptr< Socket > > connectionSucceeded, Callback< void, Ptr< Socket > > connectionFailed)
	Specify callbacks to allow the caller to determine if the connection succeeds of fails.

void	SetDataSentCallback (Callback< void, Ptr< Socket >, uint32_t > dataSent)
	Notify application when a packet has been sent from transport protocol (non-standard socket call)

void	SetIpRecvTos (bool ipv4RecvTos)
	Tells a socket to pass information about IP Type of Service up the stack.

void	SetIpRecvTtl (bool ipv4RecvTtl)
	Tells a socket to pass information about IP_TTL up the stack.

void	SetIpTos (uint8_t ipTos)
	Manually set IP Type of Service field.

virtual void	SetIpTtl (uint8_t ipTtl)
	Manually set IP Time to Live field.

virtual void	SetIpv6HopLimit (uint8_t ipHopLimit)
	Manually set IPv6 Hop Limit.

void	SetIpv6RecvHopLimit (bool ipv6RecvHopLimit)
	Tells a socket to pass information about IPv6 Hop Limit up the stack.

void	SetIpv6RecvTclass (bool ipv6RecvTclass)
	Tells a socket to pass information about IPv6 Traffic Class up the stack.

void	SetIpv6Tclass (int ipTclass)
	Manually set IPv6 Traffic Class field.

void	SetPriority (uint8_t priority)
	Manually set the socket priority.

void	SetRecvCallback (Callback< void, Ptr< Socket > > receivedData)
	Notify application when new data is available to be read.

void	SetRecvPktInfo (bool flag)
	Enable/Disable receive packet information to socket.

void	SetSendCallback (Callback< void, Ptr< Socket >, uint32_t > sendCb)
	Notify application when space in transmit buffer is added.

virtual int	ShutdownRecv ()=0

virtual int	ShutdownSend ()=0

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

	~Object () override
	Destructor.

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together.

void	Dispose ()
	Dispose of this Object.

AggregateIterator	GetAggregateIterator () const
	Get an iterator to the Objects aggregated to this one.

TypeId	GetInstanceTypeId () const override
	Get the most derived TypeId for this Object.

template<typename T >
Ptr< T >	GetObject () const
	Get a pointer to the requested aggregated Object.

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object.

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId.

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object.

void	Initialize ()
	Invoke DoInitialize on all Objects aggregated to this one.

bool	IsInitialized () const
	Check if the object has been initialized.

void	UnidirectionalAggregateObject (Ptr< Object > other)
	Aggregate an Object to another Object.

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

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

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful.

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising errors.

virtual TypeId	GetInstanceTypeId () const =0
	Get the most derived TypeId for this Object.

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful.

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors.

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context.

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context.

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context.

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context.

Static Public Member Functions
static TypeId	GetTypeId ()
	Get the type ID.

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

Static Public Member Functions inherited from ns3::Socket
static Ptr< Socket >	CreateSocket (Ptr< Node > node, TypeId tid)
	This method wraps the creation of sockets that is performed on a given node by a SocketFactory specified by TypeId.

static TypeId	GetTypeId ()
	Get the type ID.

static uint8_t	IpTos2Priority (uint8_t ipTos)
	Return the priority corresponding to a given TOS value.

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId ()
	Register this type.

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

Private Member Functions
void	DeallocateEndPoint ()
	Deallocate m_endPoint and m_endPoint6.

void	Destroy ()
	Kill this socket by zeroing its attributes (IPv4)

void	Destroy6 ()
	Kill this socket by zeroing its attributes (IPv6)

int	DoSend (Ptr< Packet > p)
	Send a packet.

int	DoSendTo (Ptr< Packet > p, Ipv4Address daddr, uint16_t dport, uint8_t tos)
	Send a packet to a specific destination and port (IPv4)

int	DoSendTo (Ptr< Packet > p, Ipv6Address daddr, uint16_t dport)
	Send a packet to a specific destination and port (IPv6)

int	FinishBind ()
	Finish the binding process.

void	ForwardIcmp (Ipv4Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo)
	Called by the L3 protocol when it received an ICMP packet to pass on to TCP.

void	ForwardIcmp6 (Ipv6Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo)
	Called by the L3 protocol when it received an ICMPv6 packet to pass on to TCP.

void	ForwardUp (Ptr< Packet > packet, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
	Called by the L3 protocol when it received a packet to pass on to TCP.

void	ForwardUp6 (Ptr< Packet > packet, Ipv6Header header, uint16_t port, Ptr< Ipv6Interface > incomingInterface)
	Called by the L3 protocol when it received a packet to pass on to TCP.

int32_t	GetIpMulticastIf () const override
	Get the IP multicast interface.

bool	GetIpMulticastLoop () const override
	Get the IP multicast loop capability.

uint8_t	GetIpMulticastTtl () const override
	Get the IP multicast TTL.

bool	GetMtuDiscover () const override
	Get the MTU discover capability.

uint32_t	GetRcvBufSize () const override
	Get the receiving buffer size.

void	SetIpMulticastIf (int32_t ipIf) override
	Set the IP multicast interface.

void	SetIpMulticastLoop (bool loop) override
	Set the IP multicast loop capability.

void	SetIpMulticastTtl (uint8_t ipTtl) override
	Set the IP multicast TTL.

void	SetMtuDiscover (bool discover) override
	Set the MTU discover capability.

void	SetRcvBufSize (uint32_t size) override
	Set the receiving buffer size.

Private Attributes
bool	m_allowBroadcast
	Allow send broadcast packets.

bool	m_connected
	Connection established.

Address	m_defaultAddress
	Default address.

uint16_t	m_defaultPort
	Default port.

std::queue< std::pair< Ptr< Packet >, Address > >	m_deliveryQueue
	Queue for incoming packets.

TracedCallback< Ptr< const Packet > >	m_dropTrace
	Trace for dropped packets.

Ipv4EndPoint *	m_endPoint
	the IPv4 endpoint

Ipv6EndPoint *	m_endPoint6
	the IPv6 endpoint

SocketErrno	m_errno
	Socket error code.

Callback< void, Ipv4Address, uint8_t, uint8_t, uint8_t, uint32_t >	m_icmpCallback
	ICMP callback.

Callback< void, Ipv6Address, uint8_t, uint8_t, uint8_t, uint32_t >	m_icmpCallback6
	ICMPv6 callback.

int32_t	m_ipMulticastIf
	Multicast Interface.

bool	m_ipMulticastLoop
	Allow multicast loop.

uint8_t	m_ipMulticastTtl
	Multicast TTL.

bool	m_mtuDiscover
	Allow MTU discovery.

Ptr< Node >	m_node
	the associated node

uint32_t	m_rcvBufSize
	Receive buffer size.

uint32_t	m_rxAvailable
	Number of available bytes to be received.

bool	m_shutdownRecv
	Receive no longer allowed.

bool	m_shutdownSend
	Send no longer allowed.

Ptr< UdpL4Protocol >	m_udp
	the associated UDP L4 protocol

Related Functions
(Note that these are not member functions.)
class	UdpSocketFactory
	UdpSocketFactory friend class.

Additional Inherited Members
Public Types inherited from ns3::Socket
enum	Ipv6MulticastFilterMode { INCLUDE = 1 , EXCLUDE }
	Enumeration of the possible filter of a socket. More...

enum	SocketErrno { ERROR_NOTERROR , ERROR_ISCONN , ERROR_NOTCONN , ERROR_MSGSIZE , ERROR_AGAIN , ERROR_SHUTDOWN , ERROR_OPNOTSUPP , ERROR_AFNOSUPPORT , ERROR_INVAL , ERROR_BADF , ERROR_NOROUTETOHOST , ERROR_NODEV , ERROR_ADDRNOTAVAIL , ERROR_ADDRINUSE , SOCKET_ERRNO_LAST }
	Enumeration of the possible errors returned by a socket. More...

enum	SocketPriority { NS3_PRIO_BESTEFFORT = 0 , NS3_PRIO_FILLER = 1 , NS3_PRIO_BULK = 2 , NS3_PRIO_INTERACTIVE_BULK = 4 , NS3_PRIO_INTERACTIVE = 6 , NS3_PRIO_CONTROL = 7 }
	Enumeration of the possible socket priorities. More...

enum	SocketType { NS3_SOCK_STREAM , NS3_SOCK_SEQPACKET , NS3_SOCK_DGRAM , NS3_SOCK_RAW }
	Enumeration of the possible socket types. More...

Protected Member Functions inherited from ns3::Socket
void	DoDispose () override
	Destructor implementation.

bool	IsManualIpTtl () const
	Checks if the socket has a specific IPv4 TTL set.

bool	IsManualIpv6HopLimit () const
	Checks if the socket has a specific IPv6 Hop Limit set.

bool	IsManualIpv6Tclass () const
	Checks if the socket has a specific IPv6 Tclass set.

void	NotifyConnectionFailed ()
	Notify through the callback (if set) that the connection has not been established due to an error.

bool	NotifyConnectionRequest (const Address &from)
	Notify through the callback (if set) that an incoming connection is being requested by a remote host.

void	NotifyConnectionSucceeded ()
	Notify through the callback (if set) that the connection has been established.

void	NotifyDataRecv ()
	Notify through the callback (if set) that some data have been received.

void	NotifyDataSent (uint32_t size)
	Notify through the callback (if set) that some data have been sent.

void	NotifyErrorClose ()
	Notify through the callback (if set) that the connection has been closed due to an error.

void	NotifyNewConnectionCreated (Ptr< Socket > socket, const Address &from)
	Notify through the callback (if set) that a new connection has been created.

void	NotifyNormalClose ()
	Notify through the callback (if set) that the connection has been closed.

void	NotifySend (uint32_t spaceAvailable)
	Notify through the callback (if set) that some data have been sent.

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

virtual void	DoDispose ()
	Destructor implementation.

virtual void	DoInitialize ()
	Initialize() implementation.

virtual void	NotifyNewAggregate ()
	Notify all Objects aggregated to this one of a new Object being aggregated.

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes.

virtual void	NotifyConstructionCompleted ()
	Notifier called once the ObjectBase is fully constructed.

Protected Attributes inherited from ns3::Socket
Ptr< NetDevice >	m_boundnetdevice
	the device this socket is bound to (might be null).

Ipv6Address	m_ipv6MulticastGroupAddress
	IPv6 multicast group address.

bool	m_recvPktInfo
	if the socket should add packet info tags to the packet forwarded to L4.

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid ()
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly.

Detailed Description

A sockets interface to UDP.

This class subclasses ns3::UdpSocket, and provides a socket interface to ns3's implementation of UDP.

For IPv4 packets, the TOS is set according to the following rules:

if the socket is connected, the TOS set for the socket is used
if the socket is not connected, the TOS specified in the destination address passed to SendTo is used, while the TOS set for the socket is ignored In both cases, a SocketIpTos tag is only added to the packet if the resulting TOS is non-null. The Bind and Connect operations set the TOS for the socket to the value specified in the provided address. If the TOS determined for a packet (as described above) is not null, the packet is assigned a priority based on that TOS value (according to the Socket::IpTos2Priority function). Otherwise, the priority set for the socket is assigned to the packet. Setting a TOS for a socket also sets a priority for the socket (according to the Socket::IpTos2Priority function). A SocketPriority tag is only added to the packet if the resulting priority is non-null.

Config Paths

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

"/NodeList/[i]/$ns3::UdpL4Protocol/SocketList/[i]"

Attributes

IcmpCallback: Callback invoked whenever an icmp error is received on this socket.
- Set with class: ns3::CallbackValue
- Underlying type: Callback
- Initial value: 0
- Flags: constructwriteread
IcmpCallback6: Callback invoked whenever an icmpv6 error is received on this socket.
- Set with class: ns3::CallbackValue
- Underlying type: Callback
- Initial value: 0
- Flags: constructwriteread

Attributes defined in parent class ns3::UdpSocket

IpMulticastIf: interface index for outgoing multicast on this socket; -1 indicates to use default interface
- Set with class: ns3::IntegerValue
- Underlying type: int32_t -2147483648:2147483647
- Initial value: -1
- Flags: constructwriteread
IpMulticastLoop: whether outgoing multicast sent also to loopback interface
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: constructwriteread
IpMulticastTtl: socket-specific TTL for multicast IP packets (if non-zero)
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:255
- Initial value: 0
- Flags: constructwriteread
IpTtl: socket-specific TTL for unicast IP packets (if non-zero)
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:255
- Initial value: 0
- Flags: constructwriteread
MtuDiscover: If enabled, every outgoing ip packet will have the DF flag set.
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: constructwriteread
RcvBufSize: UdpSocket maximum receive buffer size (bytes)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 131072
- Flags: constructwriteread

TraceSources

Drop: Drop UDP packet due to receive buffer overflow
Callback signature: ns3::Packet::TracedCallback

Size of this type is 376 bytes (on a 64-bit architecture).

Definition at line 71 of file udp-socket-impl.h.

Constructor & Destructor Documentation

◆ UdpSocketImpl()

ns3::UdpSocketImpl::UdpSocketImpl ( )

Create an unbound udp socket.

Definition at line 82 of file udp-socket-impl.cc.

References m_allowBroadcast, and NS_LOG_FUNCTION.

◆ ~UdpSocketImpl()

ns3::UdpSocketImpl::~UdpSocketImpl ( )

override

Todo:: leave any multicast groups that have been joined

Note: actually this function is called AFTER UdpSocketImpl::Destroy or UdpSocketImpl::Destroy6 so the code below is unnecessary in normal operations

Note that this piece of code is a bit tricky: when DeAllocate is called, it will call into Ipv4EndPointDemux::Deallocate which triggers a delete of the associated endPoint which triggers in turn a call to the method UdpSocketImpl::Destroy below will will zero the m_endPoint field.

Definition at line 97 of file udp-socket-impl.cc.

References m_endPoint, m_endPoint6, m_node, m_udp, NS_ASSERT, and NS_LOG_FUNCTION.

Member Function Documentation

◆ Bind() [1/2]

int ns3::UdpSocketImpl::Bind ( )

overridevirtual

Allocate a local IPv4 endpoint for this socket.

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 248 of file udp-socket-impl.cc.

References ns3::Ipv4EndPoint::BindToNetDevice(), FinishBind(), ns3::Socket::m_boundnetdevice, m_endPoint, m_udp, and NS_LOG_FUNCTION.

Referenced by DoSend(), and DoSendTo().

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◆ Bind() [2/2]

int ns3::UdpSocketImpl::Bind ( const Address & address )

overridevirtual

Allocate a local endpoint for this socket.

Parameters

address the address to try to allocate

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 272 of file udp-socket-impl.cc.

References ns3::Ipv4EndPoint::BindToNetDevice(), ns3::Ipv6EndPoint::BindToNetDevice(), ns3::Inet6SocketAddress::ConvertFrom(), ns3::InetSocketAddress::ConvertFrom(), ns3::Socket::ERROR_ADDRINUSE, ns3::Socket::ERROR_ADDRNOTAVAIL, ns3::Socket::ERROR_INVAL, FinishBind(), ns3::Ipv4Address::GetAny(), ns3::Ipv6Address::GetAny(), ns3::Socket::GetBoundNetDevice(), ns3::InetSocketAddress::GetIpv4(), ns3::Inet6SocketAddress::GetIpv6(), ns3::Ipv6EndPoint::GetLocalAddress(), ns3::Object::GetObject(), ns3::InetSocketAddress::GetPort(), ns3::Inet6SocketAddress::GetPort(), ns3::Inet6SocketAddress::IsMatchingType(), ns3::InetSocketAddress::IsMatchingType(), ns3::Ipv6Address::IsMulticast(), ns3::Socket::m_boundnetdevice, m_endPoint, m_endPoint6, m_errno, m_node, m_udp, NS_ASSERT_MSG, NS_LOG_ERROR, NS_LOG_FUNCTION, and port.

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◆ Bind6()

int ns3::UdpSocketImpl::Bind6 ( )

overridevirtual

Allocate a local IPv6 endpoint for this socket.

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 260 of file udp-socket-impl.cc.

References ns3::Ipv6EndPoint::BindToNetDevice(), FinishBind(), ns3::Socket::m_boundnetdevice, m_endPoint6, m_udp, and NS_LOG_FUNCTION.

Referenced by DoSend(), and DoSendTo().

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◆ BindToNetDevice()

void ns3::UdpSocketImpl::BindToNetDevice ( Ptr< NetDevice > netdevice )

overridevirtual

Bind a socket to specific device.

This method corresponds to using setsockopt() SO_BINDTODEVICE of real network or BSD sockets. If set on a socket, this option will force packets to leave the bound device regardless of the device that IP routing would naturally choose. In the receive direction, only packets received from the bound interface will be delivered.

This option has no particular relationship to binding sockets to an address via Socket::Bind (). It is possible to bind sockets to a specific IP address on the bound interface by calling both Socket::Bind (address) and Socket::BindToNetDevice (device), but it is also possible to bind to mismatching device and address, even if the socket can not receive any packets as a result.

Parameters

netdevice Pointer to NetDevice of desired interface

Reimplemented from ns3::Socket.

Definition at line 975 of file udp-socket-impl.cc.

References ns3::Ipv4EndPoint::BindToNetDevice(), ns3::Ipv6EndPoint::BindToNetDevice(), ns3::Socket::BindToNetDevice(), ns3::Ipv6EndPoint::GetLocalAddress(), ns3::Object::GetObject(), ns3::Ipv6Address::IsMulticast(), ns3::Socket::m_boundnetdevice, m_endPoint, m_endPoint6, m_node, and NS_LOG_FUNCTION.

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◆ Close()

int ns3::UdpSocketImpl::Close ( )

overridevirtual

Close a socket.

Returns: zero on success, -1 on failure.

After the Close call, the socket is no longer valid, and cannot safely be used for subsequent operations.

Implements ns3::Socket.

Definition at line 394 of file udp-socket-impl.cc.

References DeallocateEndPoint(), ns3::Socket::ERROR_BADF, ns3::Socket::Ipv6LeaveGroup(), m_errno, m_shutdownRecv, m_shutdownSend, and NS_LOG_FUNCTION.

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◆ Connect()

int ns3::UdpSocketImpl::Connect ( const Address & address )

overridevirtual

Initiate a connection to a remote host.

Parameters

address Address of remote.

Returns: 0 on success, -1 on error (in which case errno is set).

Implements ns3::Socket.

Definition at line 410 of file udp-socket-impl.cc.

References ns3::Inet6SocketAddress::ConvertFrom(), ns3::InetSocketAddress::ConvertFrom(), ns3::InetSocketAddress::GetIpv4(), ns3::Inet6SocketAddress::GetIpv6(), ns3::InetSocketAddress::GetPort(), ns3::Inet6SocketAddress::GetPort(), ns3::Inet6SocketAddress::IsMatchingType(), ns3::InetSocketAddress::IsMatchingType(), m_connected, m_defaultAddress, m_defaultPort, ns3::Socket::NotifyConnectionFailed(), ns3::Socket::NotifyConnectionSucceeded(), and NS_LOG_FUNCTION.

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◆ DeallocateEndPoint()

void ns3::UdpSocketImpl::DeallocateEndPoint ( )

private

Deallocate m_endPoint and m_endPoint6.

Definition at line 199 of file udp-socket-impl.cc.

References m_endPoint, m_endPoint6, and m_udp.

Referenced by Close().

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◆ Destroy()

void ns3::UdpSocketImpl::Destroy ( )

private

Kill this socket by zeroing its attributes (IPv4)

This is a callback function configured to m_endpoint in SetupCallback(), invoked when the endpoint is destroyed.

Definition at line 176 of file udp-socket-impl.cc.

References m_endPoint, m_udp, and NS_LOG_FUNCTION.

Referenced by FinishBind().

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◆ Destroy6()

void ns3::UdpSocketImpl::Destroy6 ( )

private

Kill this socket by zeroing its attributes (IPv6)

This is a callback function configured to m_endpoint in SetupCallback(), invoked when the endpoint is destroyed.

Definition at line 187 of file udp-socket-impl.cc.

References m_endPoint6, m_udp, and NS_LOG_FUNCTION.

Referenced by FinishBind().

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◆ DoSend()

int ns3::UdpSocketImpl::DoSend ( Ptr< Packet > p )

private

Send a packet.

Parameters

p packet

Returns: 0 on success, -1 on failure

Definition at line 460 of file udp-socket-impl.cc.

References Bind(), Bind6(), ns3::Ipv4Address::ConvertFrom(), ns3::Ipv6Address::ConvertFrom(), DoSendTo(), ns3::Socket::ERROR_AFNOSUPPORT, ns3::Socket::ERROR_SHUTDOWN, ns3::Socket::GetIpTos(), ns3::Ipv4Address::IsMatchingType(), ns3::Ipv6Address::IsMatchingType(), m_defaultAddress, m_defaultPort, m_endPoint, m_endPoint6, m_errno, m_shutdownSend, NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by Send().

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◆ DoSendTo() [1/2]

int ns3::UdpSocketImpl::DoSendTo	(	Ptr< Packet >	p,
		Ipv4Address	daddr,
		uint16_t	dport,
		uint8_t	tos
	)

private

Send a packet to a specific destination and port (IPv4)

Parameters

p	packet
daddr	destination address
dport	destination port
tos	ToS

Returns: 0 on success, -1 on failure

Definition at line 501 of file udp-socket-impl.cc.

References Bind(), ns3::SocketSetDontFragmentTag::Disable(), ns3::SocketSetDontFragmentTag::Enable(), ns3::Socket::ERROR_MSGSIZE, ns3::Socket::ERROR_NOROUTETOHOST, ns3::Socket::ERROR_OPNOTSUPP, ns3::Socket::ERROR_SHUTDOWN, ns3::Ipv4Address::GetAny(), ns3::Ipv4InterfaceAddress::GetBroadcast(), ns3::Ipv4Header::GetDestination(), ns3::Socket::GetIpTtl(), ns3::Ipv4InterfaceAddress::GetLocal(), ns3::Ipv4EndPoint::GetLocalAddress(), ns3::Ipv4EndPoint::GetLocalPort(), ns3::Object::GetObject(), ns3::Socket::GetPriority(), ns3::Ipv4Header::GetSource(), GetTxAvailable(), ns3::Socket::IpTos2Priority(), ns3::Ipv4Address::IsBroadcast(), ns3::Socket::IsManualIpTtl(), ns3::Ipv4Address::IsMulticast(), m_allowBroadcast, ns3::Socket::m_boundnetdevice, m_endPoint, m_errno, m_ipMulticastTtl, m_mtuDiscover, m_node, m_shutdownSend, m_udp, ns3::Socket::NotifyDataSent(), ns3::Socket::NotifySend(), NS_ASSERT, NS_LOG_ERROR, NS_LOG_FUNCTION, NS_LOG_LOGIC, port, ns3::UdpL4Protocol::PROT_NUMBER, ns3::Ipv4Header::SetDestination(), ns3::SocketPriorityTag::SetPriority(), ns3::Ipv4Header::SetProtocol(), ns3::Ipv4Header::SetSource(), ns3::SocketIpTosTag::SetTos(), and ns3::SocketIpTtlTag::SetTtl().

Referenced by DoSend(), DoSendTo(), and SendTo().

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◆ DoSendTo() [2/2]

int ns3::UdpSocketImpl::DoSendTo	(	Ptr< Packet >	p,
		Ipv6Address	daddr,
		uint16_t	dport
	)

private

Send a packet to a specific destination and port (IPv6)

Parameters

p	packet
daddr	destination address
dport	destination port

Returns: 0 on success, -1 on failure

Definition at line 690 of file udp-socket-impl.cc.

References Bind6(), DoSendTo(), ns3::Socket::ERROR_MSGSIZE, ns3::Socket::ERROR_NOROUTETOHOST, ns3::Socket::ERROR_SHUTDOWN, ns3::Ipv6Address::GetAny(), ns3::Ipv6Header::GetDestination(), ns3::Ipv6Address::GetIpv4MappedAddress(), ns3::Socket::GetIpv6HopLimit(), ns3::Socket::GetIpv6Tclass(), ns3::Ipv6EndPoint::GetLocalAddress(), ns3::Ipv6EndPoint::GetLocalPort(), ns3::Object::GetObject(), ns3::Socket::GetPriority(), ns3::Ipv6Header::GetSource(), GetTxAvailable(), ns3::Ipv6Address::IsIpv4MappedAddress(), ns3::Socket::IsManualIpv6HopLimit(), ns3::Socket::IsManualIpv6Tclass(), ns3::Ipv6Address::IsMulticast(), ns3::Socket::m_boundnetdevice, m_endPoint6, m_errno, m_ipMulticastTtl, m_node, m_shutdownSend, m_udp, ns3::Socket::NotifyDataSent(), ns3::Socket::NotifySend(), NS_ASSERT, NS_LOG_ERROR, NS_LOG_FUNCTION, NS_LOG_LOGIC, port, ns3::UdpL4Protocol::PROT_NUMBER, ns3::Ipv6Header::SetDestination(), ns3::SocketIpv6HopLimitTag::SetHopLimit(), ns3::Ipv6Header::SetNextHeader(), ns3::SocketPriorityTag::SetPriority(), ns3::Ipv6Header::SetSource(), and ns3::SocketIpv6TclassTag::SetTclass().

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◆ FinishBind()

int ns3::UdpSocketImpl::FinishBind ( )

private

Finish the binding process.

Returns: 0 on success, -1 on failure

Definition at line 214 of file udp-socket-impl.cc.

References Destroy(), Destroy6(), ForwardIcmp(), ForwardIcmp6(), ForwardUp(), ForwardUp6(), m_endPoint, m_endPoint6, m_shutdownRecv, m_shutdownSend, ns3::MakeCallback(), NS_LOG_FUNCTION, ns3::Ipv4EndPoint::SetDestroyCallback(), ns3::Ipv6EndPoint::SetDestroyCallback(), ns3::Ipv4EndPoint::SetIcmpCallback(), ns3::Ipv6EndPoint::SetIcmpCallback(), ns3::Ipv4EndPoint::SetRxCallback(), and ns3::Ipv6EndPoint::SetRxCallback().

Referenced by Bind(), and Bind6().

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◆ ForwardIcmp()

void ns3::UdpSocketImpl::ForwardIcmp	(	Ipv4Address	icmpSource,
		uint8_t	icmpTtl,
		uint8_t	icmpType,
		uint8_t	icmpCode,
		uint32_t	icmpInfo
	)

private

Called by the L3 protocol when it received an ICMP packet to pass on to TCP.

Parameters

icmpSource	the ICMP source address
icmpTtl	the ICMP Time to Live
icmpType	the ICMP Type
icmpCode	the ICMP Code
icmpInfo	the ICMP Info

Definition at line 1149 of file udp-socket-impl.cc.

References m_icmpCallback, and NS_LOG_FUNCTION.

Referenced by FinishBind().

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◆ ForwardIcmp6()

void ns3::UdpSocketImpl::ForwardIcmp6	(	Ipv6Address	icmpSource,
		uint8_t	icmpTtl,
		uint8_t	icmpType,
		uint8_t	icmpCode,
		uint32_t	icmpInfo
	)

private

Called by the L3 protocol when it received an ICMPv6 packet to pass on to TCP.

Parameters

icmpSource	the ICMP source address
icmpTtl	the ICMP Time to Live
icmpType	the ICMP Type
icmpCode	the ICMP Code
icmpInfo	the ICMP Info

Definition at line 1164 of file udp-socket-impl.cc.

References m_icmpCallback6, and NS_LOG_FUNCTION.

Referenced by FinishBind().

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◆ ForwardUp()

void ns3::UdpSocketImpl::ForwardUp	(	Ptr< Packet >	packet,
		Ipv4Header	header,
		uint16_t	port,
		Ptr< Ipv4Interface >	incomingInterface
	)

private

Called by the L3 protocol when it received a packet to pass on to TCP.

Parameters

packet	the incoming packet
header	the packet's IPv4 header
port	the remote port
incomingInterface	the incoming interface

Definition at line 1024 of file udp-socket-impl.cc.

References ns3::Ipv4Header::GetDestination(), ns3::Ipv4Header::GetSource(), ns3::Ipv4Header::GetTos(), ns3::Ipv4Header::GetTtl(), ns3::Socket::IsIpRecvTos(), ns3::Socket::IsIpRecvTtl(), ns3::Socket::IsRecvPktInfo(), m_deliveryQueue, m_dropTrace, m_rcvBufSize, m_rxAvailable, m_shutdownRecv, ns3::Socket::NotifyDataRecv(), NS_LOG_FUNCTION, NS_LOG_WARN, port, ns3::Ipv4PacketInfoTag::SetAddress(), ns3::Ipv4PacketInfoTag::SetRecvIf(), ns3::SocketIpTosTag::SetTos(), ns3::Ipv4PacketInfoTag::SetTtl(), and ns3::SocketIpTtlTag::SetTtl().

Referenced by FinishBind().

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◆ ForwardUp6()

void ns3::UdpSocketImpl::ForwardUp6	(	Ptr< Packet >	packet,
		Ipv6Header	header,
		uint16_t	port,
		Ptr< Ipv6Interface >	incomingInterface
	)

private

Called by the L3 protocol when it received a packet to pass on to TCP.

Parameters

packet	the incoming packet
header	the packet's IPv6 header
port	the remote port
incomingInterface	the incoming interface

Definition at line 1086 of file udp-socket-impl.cc.

References ns3::Ipv6Header::GetDestination(), ns3::Ipv6Header::GetHopLimit(), ns3::Ipv6Header::GetSource(), ns3::Ipv6Header::GetTrafficClass(), ns3::Socket::IsIpv6RecvHopLimit(), ns3::Socket::IsIpv6RecvTclass(), ns3::Socket::IsRecvPktInfo(), m_deliveryQueue, m_dropTrace, m_rcvBufSize, m_rxAvailable, m_shutdownRecv, ns3::Socket::NotifyDataRecv(), NS_LOG_FUNCTION, NS_LOG_WARN, port, ns3::Ipv6PacketInfoTag::SetAddress(), ns3::SocketIpv6HopLimitTag::SetHopLimit(), ns3::Ipv6PacketInfoTag::SetHoplimit(), ns3::Ipv6PacketInfoTag::SetRecvIf(), ns3::SocketIpv6TclassTag::SetTclass(), and ns3::Ipv6PacketInfoTag::SetTrafficClass().

Referenced by FinishBind().

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◆ GetAllowBroadcast()

bool ns3::UdpSocketImpl::GetAllowBroadcast ( ) const

overridevirtual

Query whether broadcast datagram transmissions are allowed.

This method corresponds to using getsockopt() SO_BROADCAST of real network or BSD sockets.

Returns: true if broadcast is allowed, false otherwise

Implements ns3::Socket.

Definition at line 1246 of file udp-socket-impl.cc.

References m_allowBroadcast.

◆ GetErrno()

Socket::SocketErrno ns3::UdpSocketImpl::GetErrno ( ) const

overridevirtual

Get last error number.

Returns: the errno associated to the last call which failed in this socket. Each socket's errno is initialized to zero when the socket is created.

Implements ns3::Socket.

Definition at line 156 of file udp-socket-impl.cc.

References m_errno, and NS_LOG_FUNCTION.

◆ GetIpMulticastIf()

int32_t ns3::UdpSocketImpl::GetIpMulticastIf ( ) const

overrideprivatevirtual

Get the IP multicast interface.

Returns: the IP multicast interface

Implements ns3::UdpSocket.

Definition at line 1209 of file udp-socket-impl.cc.

References m_ipMulticastIf.

◆ GetIpMulticastLoop()

bool ns3::UdpSocketImpl::GetIpMulticastLoop ( ) const

overrideprivatevirtual

Get the IP multicast loop capability.

This means that the socket will receive the packets sent by itself on a multicast address. Equivalent to setsockopt IP_MULTICAST_LOOP

Returns: the IP multicast loop capability

Implements ns3::UdpSocket.

Definition at line 1221 of file udp-socket-impl.cc.

References m_ipMulticastLoop.

◆ GetIpMulticastTtl()

uint8_t ns3::UdpSocketImpl::GetIpMulticastTtl ( ) const

overrideprivatevirtual

Get the IP multicast TTL.

Returns: the IP multicast TTL

Implements ns3::UdpSocket.

Definition at line 1197 of file udp-socket-impl.cc.

References m_ipMulticastTtl.

◆ GetMtuDiscover()

bool ns3::UdpSocketImpl::GetMtuDiscover ( ) const

overrideprivatevirtual

Get the MTU discover capability.

Returns: the MTU discover capability

Implements ns3::UdpSocket.

Definition at line 1233 of file udp-socket-impl.cc.

References m_mtuDiscover.

◆ GetNode()

Ptr< Node > ns3::UdpSocketImpl::GetNode ( ) const

overridevirtual

Return the node this socket is associated with.

Returns: the node

Implements ns3::Socket.

Definition at line 169 of file udp-socket-impl.cc.

References m_node, and NS_LOG_FUNCTION.

◆ GetPeerName()

int ns3::UdpSocketImpl::GetPeerName ( Address & address ) const

overridevirtual

Get the peer address of a connected socket.

Parameters

address the address this socket is connected to.

Returns: 0 if success, -1 otherwise

Implements ns3::Socket.

Definition at line 918 of file udp-socket-impl.cc.

References ns3::Ipv4Address::ConvertFrom(), ns3::Ipv6Address::ConvertFrom(), ns3::Socket::ERROR_NOTCONN, ns3::Ipv4Address::IsMatchingType(), ns3::Ipv6Address::IsMatchingType(), m_connected, m_defaultAddress, m_defaultPort, m_errno, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

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◆ GetRcvBufSize()

uint32_t ns3::UdpSocketImpl::GetRcvBufSize ( ) const

overrideprivatevirtual

Get the receiving buffer size.

Returns: the buffer size

Implements ns3::UdpSocket.

Definition at line 1185 of file udp-socket-impl.cc.

References m_rcvBufSize.

◆ GetRxAvailable()

uint32_t ns3::UdpSocketImpl::GetRxAvailable ( ) const

overridevirtual

Return number of bytes which can be returned from one or multiple calls to Recv.

Must be possible to call this method from the Recv callback.

Returns: the number of bytes which can be returned from one or multiple Recv calls.

Implements ns3::Socket.

Definition at line 853 of file udp-socket-impl.cc.

References m_rxAvailable, and NS_LOG_FUNCTION.

◆ GetSocketType()

Socket::SocketType ns3::UdpSocketImpl::GetSocketType ( ) const

overridevirtual

Returns: the socket type, analogous to getsockopt (SO_TYPE)

Implements ns3::Socket.

Definition at line 163 of file udp-socket-impl.cc.

References ns3::Socket::NS3_SOCK_DGRAM.

◆ GetSockName()

int ns3::UdpSocketImpl::GetSockName ( Address & address ) const

overridevirtual

Get socket address.

Parameters

address the address name this socket is associated with.

Returns: 0 if success, -1 otherwise

Implements ns3::Socket.

Definition at line 897 of file udp-socket-impl.cc.

References ns3::Ipv4EndPoint::GetLocalAddress(), ns3::Ipv6EndPoint::GetLocalAddress(), ns3::Ipv4EndPoint::GetLocalPort(), ns3::Ipv6EndPoint::GetLocalPort(), ns3::Ipv4Address::GetZero(), m_endPoint, m_endPoint6, and NS_LOG_FUNCTION.

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◆ GetTxAvailable()

uint32_t ns3::UdpSocketImpl::GetTxAvailable ( ) const

overridevirtual

Returns the number of bytes which can be sent in a single call to Send.

For datagram sockets, this returns the number of bytes that can be passed atomically through the underlying protocol.

For stream sockets, this returns the available space in bytes left in the transmit buffer.

Returns: The number of bytes which can be sent in a single Send call.

Implements ns3::Socket.

Definition at line 823 of file udp-socket-impl.cc.

References ns3::MAX_IPV4_UDP_DATAGRAM_SIZE, and NS_LOG_FUNCTION.

Referenced by DoSendTo().

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◆ GetTypeId()

TypeId ns3::UdpSocketImpl::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 58 of file udp-socket-impl.cc.

References m_dropTrace, m_icmpCallback, m_icmpCallback6, ns3::MakeCallbackAccessor(), ns3::MakeCallbackChecker(), ns3::MakeTraceSourceAccessor(), and ns3::TypeId::SetParent().

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◆ Ipv6JoinGroup()

void ns3::UdpSocketImpl::Ipv6JoinGroup	(	Ipv6Address	address,
		Socket::Ipv6MulticastFilterMode	filterMode,
		std::vector< Ipv6Address >	sourceAddresses
	)

overridevirtual

Joins a IPv6 multicast group.

Based on the filter mode and source addresses this can be interpreted as a join, leave, or modification to source filtering on a multicast group.

Mind that a socket can join only one multicast group. Any attempt to join another group will remove the old one.

Parameters

address	Requested multicast address.
filterMode	Socket filtering mode (INCLUDE \| EXCLUDE).
sourceAddresses	All the source addresses on which socket is interested or not interested.

Reimplemented from ns3::Socket.

Definition at line 1252 of file udp-socket-impl.cc.

References ns3::Object::GetObject(), ns3::Socket::INCLUDE, ns3::Ipv6Address::IsAny(), ns3::Socket::m_boundnetdevice, ns3::Socket::m_ipv6MulticastGroupAddress, m_node, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

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◆ Listen()

int ns3::UdpSocketImpl::Listen ( )

overridevirtual

Listen for incoming connections.

Returns: 0 on success, -1 on error (in which case errno is set).

Implements ns3::Socket.

Definition at line 439 of file udp-socket-impl.cc.

References ns3::Socket::ERROR_OPNOTSUPP, and m_errno.

◆ MulticastJoinGroup()

int ns3::UdpSocketImpl::MulticastJoinGroup	(	uint32_t	interface,
		const Address &	groupAddress
	)

overridevirtual

Corresponds to socket option MCAST_JOIN_GROUP.

Parameters

interface	interface number, or 0
groupAddress	multicast group address

Returns: on success, zero is returned. On error, -1 is returned, and errno is set appropriately

Enable reception of multicast datagrams for this socket on the interface number specified. If zero is specified as the interface, then a single local interface is chosen by system. In the future, this function will generate trigger IGMP joins as necessary when IGMP is implemented, but for now, this just enables multicast datagram reception in the system if not already enabled for this interface/groupAddress combination.

Attention: IGMP is not yet implemented in ns-3

This function may be called repeatedly on a given socket but each join must be for a different multicast address, or for the same multicast address but on a different interface from previous joins. This enables host multihoming, and the ability to join the same group on different interfaces.

Implements ns3::UdpSocket.

Definition at line 947 of file udp-socket-impl.cc.

References NS_LOG_FUNCTION.

◆ MulticastLeaveGroup()

int ns3::UdpSocketImpl::MulticastLeaveGroup	(	uint32_t	interface,
		const Address &	groupAddress
	)

overridevirtual

Corresponds to socket option MCAST_LEAVE_GROUP.

Parameters

interface	interface number, or 0
groupAddress	multicast group address

Returns: on success, zero is returned. On error, -1 is returned, and errno is set appropriately

Disable reception of multicast datagrams for this socket on the interface number specified. If zero is specified as the interfaceIndex, then a single local interface is chosen by system. In the future, this function will generate trigger IGMP leaves as necessary when IGMP is implemented, but for now, this just disables multicast datagram reception in the system if this socket is the last for this interface/groupAddress combination.

Attention: IGMP is not yet implemented in ns-3

Implements ns3::UdpSocket.

Definition at line 961 of file udp-socket-impl.cc.

References NS_LOG_FUNCTION.

◆ Recv()

Ptr< Packet > ns3::UdpSocketImpl::Recv	(	uint32_t	maxSize,
		uint32_t	flags
	)

overridevirtual

Read data from the socket.

This function matches closely in semantics to the recv() function call in the standard C library (libc): ssize_t recv (int s, void *buf, size_t len, int flags); except that the receive I/O is asynchronous. This is the primary Recv method at this low-level API and must be implemented by subclasses.

This method is normally used only on a connected socket. In a typical blocking sockets model, this call would block until at least one byte is returned or the connection closes. In ns-3 at this API, the call returns immediately in such a case and returns 0 if nothing is available to be read. However, an application can set a callback, ns3::SetRecvCallback, to be notified of data being available to be read (when it conceptually unblocks); this is an asynchronous I/O model for recv().

This variant of Recv() uses class ns3::Packet to encapsulate data, rather than providing a raw pointer and length field. This allows an ns-3 application to attach tags if desired (such as a flow ID) and may allow the simulator to avoid some data copies. Despite the appearance of receiving Packets on a stream socket, just think of it as a fancy byte buffer with streaming semantics.

The semantics depend on the type of socket. For a datagram socket, each Recv() returns the data from at most one Send(), and order is not necessarily preserved. For a stream socket, the bytes are delivered in order, and on-the-wire packet boundaries are not preserved.

The flags argument is formed by or'ing one or more of the values: MSG_OOB process out-of-band data MSG_PEEK peek at incoming message None of these flags are supported for now.

Some variants of Recv() are supported as additional API, including RecvFrom(), overloaded Recv() without arguments, and variants that use raw character buffers.

Parameters

maxSize	reader will accept packet up to maxSize
flags	Socket control flags

Returns: Ptr<Packet> of the next in-sequence packet. Returns 0 if the socket cannot return a next in-sequence packet conforming to the maxSize and flags.

See also: SetRecvCallback

Implements ns3::Socket.

Definition at line 862 of file udp-socket-impl.cc.

References NS_LOG_FUNCTION, and RecvFrom().

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◆ RecvFrom()

Ptr< Packet > ns3::UdpSocketImpl::RecvFrom	(	uint32_t	maxSize,
		uint32_t	flags,
		Address &	fromAddress
	)

overridevirtual

Read a single packet from the socket and retrieve the sender address.

Calls Recv(maxSize, flags) with maxSize implicitly set to maximum sized integer, and flags set to zero.

This method has similar semantics to Recv () but subclasses may want to provide checks on socket state, so the implementation is pushed to subclasses.

Parameters

maxSize	reader will accept packet up to maxSize
flags	Socket control flags
fromAddress	output parameter that will return the address of the sender of the received packet, if any. Remains untouched if no packet is received.

Returns: Ptr<Packet> of the next in-sequence packet. Returns 0 if the socket cannot return a next in-sequence packet.

Implements ns3::Socket.

Definition at line 872 of file udp-socket-impl.cc.

References ns3::Socket::ERROR_AGAIN, m_deliveryQueue, m_errno, m_rxAvailable, and NS_LOG_FUNCTION.

Referenced by Recv().

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◆ Send()

int ns3::UdpSocketImpl::Send	(	Ptr< Packet >	p,
		uint32_t	flags
	)

overridevirtual

Send data (or dummy data) to the remote host.

This function matches closely in semantics to the send() function call in the standard C library (libc): ssize_t send (int s, const void *msg, size_t len, int flags); except that the send I/O is asynchronous. This is the primary Send method at this low-level API and must be implemented by subclasses.

In a typical blocking sockets model, this call would block upon lack of space to hold the message to be sent. In ns-3 at this API, the call returns immediately in such a case, but the callback registered with SetSendCallback() is invoked when the socket has space (when it conceptually unblocks); this is an asynchronous I/O model for send().

This variant of Send() uses class ns3::Packet to encapsulate data, rather than providing a raw pointer and length field. This allows an ns-3 application to attach tags if desired (such as a flow ID) and may allow the simulator to avoid some data copies. Despite the appearance of sending Packets on a stream socket, just think of it as a fancy byte buffer with streaming semantics.

If either the message buffer within the Packet is too long to pass atomically through the underlying protocol (for datagram sockets), or the message buffer cannot entirely fit in the transmit buffer (for stream sockets), -1 is returned and SocketErrno is set to ERROR_MSGSIZE. If the packet does not fit, the caller can split the Packet (based on information obtained from GetTxAvailable) and reattempt to send the data.

The flags argument is formed by or'ing one or more of the values: MSG_OOB process out-of-band data MSG_DONTROUTE bypass routing, use direct interface These flags are unsupported as of ns-3.1.

Parameters

p	ns3::Packet to send
flags	Socket control flags

Returns: the number of bytes accepted for transmission if no error occurs, and -1 otherwise.

See also: SetSendCallback

Implements ns3::Socket.

Definition at line 446 of file udp-socket-impl.cc.

References DoSend(), ns3::Socket::ERROR_NOTCONN, m_connected, m_errno, and NS_LOG_FUNCTION.

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◆ SendTo()

int ns3::UdpSocketImpl::SendTo	(	Ptr< Packet >	p,
		uint32_t	flags,
		const Address &	toAddress
	)

overridevirtual

Send data to a specified peer.

This method has similar semantics to Send () but subclasses may want to provide checks on socket state, so the implementation is pushed to subclasses.

Parameters

p	packet to send
flags	Socket control flags
toAddress	IP Address of remote host

Returns: -1 in case of error or the number of bytes copied in the internal buffer and accepted for transmission.

Implements ns3::Socket.

Definition at line 832 of file udp-socket-impl.cc.

References ns3::Inet6SocketAddress::ConvertFrom(), ns3::InetSocketAddress::ConvertFrom(), DoSendTo(), ns3::Socket::GetIpTos(), ns3::InetSocketAddress::GetIpv4(), ns3::Inet6SocketAddress::GetIpv6(), ns3::InetSocketAddress::GetPort(), ns3::Inet6SocketAddress::GetPort(), ns3::Inet6SocketAddress::IsMatchingType(), ns3::InetSocketAddress::IsMatchingType(), NS_LOG_FUNCTION, and port.

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◆ SetAllowBroadcast()

bool ns3::UdpSocketImpl::SetAllowBroadcast ( bool allowBroadcast )

overridevirtual

Configure whether broadcast datagram transmissions are allowed.

This method corresponds to using setsockopt() SO_BROADCAST of real network or BSD sockets. If set on a socket, this option will enable or disable packets to be transmitted to broadcast destination addresses.

Parameters

allowBroadcast Whether broadcast is allowed

Returns: true if operation succeeds

Implements ns3::Socket.

Definition at line 1239 of file udp-socket-impl.cc.

References m_allowBroadcast.

◆ SetIpMulticastIf()

void ns3::UdpSocketImpl::SetIpMulticastIf ( int32_t ipIf )

overrideprivatevirtual

Set the IP multicast interface.

Parameters

ipIf	the IP multicast interface

Implements ns3::UdpSocket.

Definition at line 1203 of file udp-socket-impl.cc.

References m_ipMulticastIf.

◆ SetIpMulticastLoop()

void ns3::UdpSocketImpl::SetIpMulticastLoop ( bool loop )

overrideprivatevirtual

Set the IP multicast loop capability.

This means that the socket will receive the packets sent by itself on a multicast address. Equivalent to setsockopt IP_MULTICAST_LOOP

Parameters

loop	the IP multicast loop capability

Implements ns3::UdpSocket.

Definition at line 1215 of file udp-socket-impl.cc.

References m_ipMulticastLoop.

◆ SetIpMulticastTtl()

void ns3::UdpSocketImpl::SetIpMulticastTtl ( uint8_t ipTtl )

overrideprivatevirtual

Set the IP multicast TTL.

Parameters

ipTtl the IP multicast TTL

Implements ns3::UdpSocket.

Definition at line 1191 of file udp-socket-impl.cc.

References m_ipMulticastTtl.

◆ SetMtuDiscover()

void ns3::UdpSocketImpl::SetMtuDiscover ( bool discover )

overrideprivatevirtual

Set the MTU discover capability.

Parameters

discover the MTU discover capability

Implements ns3::UdpSocket.

Definition at line 1227 of file udp-socket-impl.cc.

References m_mtuDiscover.

◆ SetNode()

void ns3::UdpSocketImpl::SetNode ( Ptr< Node > node )

Set the associated node.

Parameters

node the node

Definition at line 142 of file udp-socket-impl.cc.

References m_node, and NS_LOG_FUNCTION.

◆ SetRcvBufSize()

void ns3::UdpSocketImpl::SetRcvBufSize ( uint32_t size )

overrideprivatevirtual

Set the receiving buffer size.

Parameters

size	the buffer size

Implements ns3::UdpSocket.

Definition at line 1179 of file udp-socket-impl.cc.

References m_rcvBufSize.

◆ SetUdp()

void ns3::UdpSocketImpl::SetUdp ( Ptr< UdpL4Protocol > udp )

Set the associated UDP L4 protocol.

Parameters

udp	the UDP L4 protocol

Definition at line 149 of file udp-socket-impl.cc.

References m_udp, and NS_LOG_FUNCTION.

◆ ShutdownRecv()

int ns3::UdpSocketImpl::ShutdownRecv ( )

overridevirtual

Returns: zero on success, -1 on failure.

Do not allow any further Recv calls. This method is typically implemented for Tcp sockets by a half close.

Implements ns3::Socket.

Definition at line 378 of file udp-socket-impl.cc.

References m_endPoint, m_endPoint6, m_shutdownRecv, NS_LOG_FUNCTION, ns3::Ipv4EndPoint::SetRxEnabled(), and ns3::Ipv6EndPoint::SetRxEnabled().

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◆ ShutdownSend()

int ns3::UdpSocketImpl::ShutdownSend ( )

overridevirtual

Returns: zero on success, -1 on failure.

Do not allow any further Send calls. This method is typically implemented for Tcp sockets by a half close.

Implements ns3::Socket.

Definition at line 370 of file udp-socket-impl.cc.

References m_shutdownSend, and NS_LOG_FUNCTION.

Friends And Related Function Documentation

◆ UdpSocketFactory

friend class UdpSocketFactory

friend

UdpSocketFactory friend class.

Definition at line 141 of file udp-socket-impl.h.

Member Data Documentation

◆ m_allowBroadcast

bool ns3::UdpSocketImpl::m_allowBroadcast

private

Allow send broadcast packets.

Definition at line 269 of file udp-socket-impl.h.

Referenced by UdpSocketImpl(), DoSendTo(), GetAllowBroadcast(), and SetAllowBroadcast().

◆ m_connected

bool ns3::UdpSocketImpl::m_connected

private

Connection established.

Definition at line 268 of file udp-socket-impl.h.

Referenced by Connect(), GetPeerName(), and Send().

◆ m_defaultAddress

Address ns3::UdpSocketImpl::m_defaultAddress

private

Default address.

Definition at line 261 of file udp-socket-impl.h.

Referenced by Connect(), DoSend(), and GetPeerName().

◆ m_defaultPort

uint16_t ns3::UdpSocketImpl::m_defaultPort

private

Default port.

Definition at line 262 of file udp-socket-impl.h.

Referenced by Connect(), DoSend(), and GetPeerName().

◆ m_deliveryQueue

std::queue<std::pair<Ptr<Packet>, Address> > ns3::UdpSocketImpl::m_deliveryQueue

private

Queue for incoming packets.

Definition at line 271 of file udp-socket-impl.h.

Referenced by ForwardUp(), ForwardUp6(), and RecvFrom().

◆ m_dropTrace

TracedCallback<Ptr<const Packet> > ns3::UdpSocketImpl::m_dropTrace

private

Trace for dropped packets.

Definition at line 263 of file udp-socket-impl.h.

Referenced by ForwardUp(), ForwardUp6(), and GetTypeId().

◆ m_endPoint

Ipv4EndPoint* ns3::UdpSocketImpl::m_endPoint

private

the IPv4 endpoint

Definition at line 252 of file udp-socket-impl.h.

Referenced by ~UdpSocketImpl(), Bind(), BindToNetDevice(), DeallocateEndPoint(), Destroy(), DoSend(), DoSendTo(), FinishBind(), GetSockName(), and ShutdownRecv().

◆ m_endPoint6

Ipv6EndPoint* ns3::UdpSocketImpl::m_endPoint6

private

the IPv6 endpoint

Definition at line 253 of file udp-socket-impl.h.

Referenced by ~UdpSocketImpl(), Bind(), Bind6(), BindToNetDevice(), DeallocateEndPoint(), Destroy6(), DoSend(), DoSendTo(), FinishBind(), GetSockName(), and ShutdownRecv().

◆ m_errno

SocketErrno ns3::UdpSocketImpl::m_errno

mutableprivate

Socket error code.

Definition at line 265 of file udp-socket-impl.h.

Referenced by Bind(), Close(), DoSend(), DoSendTo(), GetErrno(), GetPeerName(), Listen(), RecvFrom(), and Send().

◆ m_icmpCallback

Callback<void, Ipv4Address, uint8_t, uint8_t, uint8_t, uint32_t> ns3::UdpSocketImpl::m_icmpCallback

private

ICMP callback.

Definition at line 257 of file udp-socket-impl.h.

Referenced by ForwardIcmp(), and GetTypeId().

◆ m_icmpCallback6

Callback<void, Ipv6Address, uint8_t, uint8_t, uint8_t, uint32_t> ns3::UdpSocketImpl::m_icmpCallback6

private

ICMPv6 callback.

Definition at line 259 of file udp-socket-impl.h.

Referenced by ForwardIcmp6(), and GetTypeId().

◆ m_ipMulticastIf

int32_t ns3::UdpSocketImpl::m_ipMulticastIf

private

Multicast Interface.

Definition at line 277 of file udp-socket-impl.h.

Referenced by GetIpMulticastIf(), and SetIpMulticastIf().

◆ m_ipMulticastLoop

bool ns3::UdpSocketImpl::m_ipMulticastLoop

private

Allow multicast loop.

Definition at line 278 of file udp-socket-impl.h.

Referenced by GetIpMulticastLoop(), and SetIpMulticastLoop().

◆ m_ipMulticastTtl

uint8_t ns3::UdpSocketImpl::m_ipMulticastTtl

private

Multicast TTL.

Definition at line 276 of file udp-socket-impl.h.

Referenced by DoSendTo(), GetIpMulticastTtl(), and SetIpMulticastTtl().

◆ m_mtuDiscover

bool ns3::UdpSocketImpl::m_mtuDiscover

private

Allow MTU discovery.

Definition at line 279 of file udp-socket-impl.h.

Referenced by DoSendTo(), GetMtuDiscover(), and SetMtuDiscover().

◆ m_node

Ptr<Node> ns3::UdpSocketImpl::m_node

private

the associated node

Definition at line 254 of file udp-socket-impl.h.

Referenced by ~UdpSocketImpl(), Bind(), BindToNetDevice(), DoSendTo(), GetNode(), Ipv6JoinGroup(), and SetNode().

◆ m_rcvBufSize

uint32_t ns3::UdpSocketImpl::m_rcvBufSize

private

Receive buffer size.

Definition at line 275 of file udp-socket-impl.h.

Referenced by ForwardUp(), ForwardUp6(), GetRcvBufSize(), and SetRcvBufSize().

◆ m_rxAvailable

uint32_t ns3::UdpSocketImpl::m_rxAvailable

private

Number of available bytes to be received.

Definition at line 272 of file udp-socket-impl.h.

Referenced by ForwardUp(), ForwardUp6(), GetRxAvailable(), and RecvFrom().

◆ m_shutdownRecv

bool ns3::UdpSocketImpl::m_shutdownRecv

private

Receive no longer allowed.

Definition at line 267 of file udp-socket-impl.h.

Referenced by Close(), FinishBind(), ForwardUp(), ForwardUp6(), and ShutdownRecv().

◆ m_shutdownSend

bool ns3::UdpSocketImpl::m_shutdownSend

private

Send no longer allowed.

Definition at line 266 of file udp-socket-impl.h.

Referenced by Close(), DoSend(), DoSendTo(), FinishBind(), and ShutdownSend().

◆ m_udp

Ptr<UdpL4Protocol> ns3::UdpSocketImpl::m_udp

private

the associated UDP L4 protocol

Definition at line 255 of file udp-socket-impl.h.

Referenced by ~UdpSocketImpl(), Bind(), Bind6(), DeallocateEndPoint(), Destroy(), Destroy6(), DoSendTo(), and SetUdp().

The documentation for this class was generated from the following files:

src/internet/model/udp-socket-impl.h
src/internet/model/udp-socket-impl.cc

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Related Functions

Additional Inherited Members

Detailed Description

Config Paths

Attributes

Attributes defined in parent class ns3::UdpSocket

TraceSources

Constructor & Destructor Documentation

◆ UdpSocketImpl()

◆ ~UdpSocketImpl()

Member Function Documentation

◆ Bind() [1/2]

◆ Bind() [2/2]

◆ Bind6()

◆ BindToNetDevice()

◆ Close()

◆ Connect()

◆ DeallocateEndPoint()

◆ Destroy()

◆ Destroy6()

◆ DoSend()

◆ DoSendTo() [1/2]

◆ DoSendTo() [2/2]

◆ FinishBind()

◆ ForwardIcmp()

◆ ForwardIcmp6()

◆ ForwardUp()

◆ ForwardUp6()

◆ GetAllowBroadcast()

◆ GetErrno()

◆ GetIpMulticastIf()

◆ GetIpMulticastLoop()

◆ GetIpMulticastTtl()

◆ GetMtuDiscover()

◆ GetNode()

◆ GetPeerName()

◆ GetRcvBufSize()

◆ GetRxAvailable()

◆ GetSocketType()

◆ GetSockName()

◆ GetTxAvailable()

◆ GetTypeId()

◆ Ipv6JoinGroup()

◆ Listen()

◆ MulticastJoinGroup()

◆ MulticastLeaveGroup()

◆ Recv()

◆ RecvFrom()

◆ Send()

◆ SendTo()

◆ SetAllowBroadcast()

◆ SetIpMulticastIf()

◆ SetIpMulticastLoop()

◆ SetIpMulticastTtl()

◆ SetMtuDiscover()

◆ SetNode()

◆ SetRcvBufSize()

◆ SetUdp()

◆ ShutdownRecv()

◆ ShutdownSend()

Friends And Related Function Documentation

◆ UdpSocketFactory

Member Data Documentation

◆ m_allowBroadcast

◆ m_connected

◆ m_defaultAddress

◆ m_defaultPort

◆ m_deliveryQueue

◆ m_dropTrace

◆ m_endPoint

◆ m_endPoint6

◆ m_errno

◆ m_icmpCallback

◆ m_icmpCallback6

◆ m_ipMulticastIf

◆ m_ipMulticastLoop