a NetDevice to read/write network traffic from/into a file descriptor. More...

#include "fd-net-device.h"

Inheritance diagram for ns3::FdNetDevice:

Collaboration diagram for ns3::FdNetDevice:

Public Types
enum	EncapsulationMode { DIX , LLC , DIXPI }
	Enumeration of the types of frames supported in the class. More...

Public Types inherited from ns3::NetDevice
typedef void(*	LinkChangeTracedCallback) (void)
	TracedCallback signature for link changed event. More...

enum	PacketType { PACKET_HOST = 1 , NS3_PACKET_HOST = PACKET_HOST , PACKET_BROADCAST , NS3_PACKET_BROADCAST = PACKET_BROADCAST , PACKET_MULTICAST , NS3_PACKET_MULTICAST = PACKET_MULTICAST , PACKET_OTHERHOST , NS3_PACKET_OTHERHOST = PACKET_OTHERHOST }
	Packet types are used as they are in Linux. More...

typedef Callback< bool, Ptr< NetDevice >, Ptr< const Packet >, uint16_t, const Address &, const Address &, enum PacketType >	PromiscReceiveCallback

typedef Callback< bool, Ptr< NetDevice >, Ptr< const Packet >, uint16_t, const Address & >	ReceiveCallback

Public Member Functions
	FdNetDevice ()
	Constructor for the FdNetDevice. More...

	FdNetDevice (FdNetDevice const &)=delete

virtual	~FdNetDevice ()
	Destructor for the FdNetDevice. More...

virtual void	AddLinkChangeCallback (Callback< void > callback)

virtual Address	GetAddress (void) const

virtual Address	GetBroadcast (void) const

virtual Ptr< Channel >	GetChannel (void) const

FdNetDevice::EncapsulationMode	GetEncapsulationMode (void) const
	Get the link layer encapsulation mode of this device. More...

virtual uint32_t	GetIfIndex (void) const

virtual uint16_t	GetMtu (void) const

virtual Address	GetMulticast (Ipv4Address multicastGroup) const
	Make and return a MAC multicast address using the provided multicast group. More...

virtual Address	GetMulticast (Ipv6Address addr) const
	Get the MAC multicast address corresponding to the IPv6 address provided. More...

virtual Ptr< Node >	GetNode (void) const

virtual bool	IsBridge (void) const
	Return true if the net device is acting as a bridge. More...

virtual bool	IsBroadcast (void) const

virtual bool	IsLinkUp (void) const

virtual bool	IsMulticast (void) const

virtual bool	IsPointToPoint (void) const
	Return true if the net device is on a point-to-point link. More...

virtual bool	NeedsArp (void) const

virtual bool	Send (Ptr< Packet > packet, const Address &dest, uint16_t protocolNumber)

virtual bool	SendFrom (Ptr< Packet > packet, const Address &source, const Address &dest, uint16_t protocolNumber)

virtual void	SetAddress (Address address)
	Set the address of this interface. More...

void	SetEncapsulationMode (FdNetDevice::EncapsulationMode mode)
	Set the link layer encapsulation mode of this device. More...

void	SetFileDescriptor (int fd)
	Set the associated file descriptor. More...

virtual void	SetIfIndex (const uint32_t index)

virtual void	SetIsBroadcast (bool broadcast)
	Set if the NetDevice is able to send Broadcast messages. More...

virtual void	SetIsMulticast (bool multicast)
	Set if the NetDevice is able to send Multicast messages. More...

virtual bool	SetMtu (const uint16_t mtu)

virtual void	SetNode (Ptr< Node > node)

virtual void	SetPromiscReceiveCallback (NetDevice::PromiscReceiveCallback cb)

virtual void	SetReceiveCallback (NetDevice::ReceiveCallback cb)

void	Start (Time tStart)
	Set a start time for the device. More...

void	Stop (Time tStop)
	Set a stop time for the device. More...

virtual bool	SupportsSendFrom () const

virtual ssize_t	Write (uint8_t *buffer, size_t length)
	Write packet data to device. More...

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

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

virtual	~Object ()
	Destructor. More...

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

void	Dispose (void)
	Dispose of this Object. More...

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

virtual TypeId	GetInstanceTypeId (void) const
	Get the most derived TypeId for this Object. More...

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

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

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

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

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

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

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

	SimpleRefCount (const SimpleRefCount &o[[maybe_unused]])
	Copy constructor. More...

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

SimpleRefCount &	operator= ([[maybe_unused]] const SimpleRefCount &o)
	Assignment operator. More...

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

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

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

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

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

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

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

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

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

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

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

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

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

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

Protected Member Functions
virtual uint8_t *	AllocateBuffer (size_t len)
	Allocate packet buffer. More...

virtual void	DoDispose (void)
	Destructor implementation. More...

virtual void	DoInitialize (void)
	Method Initialization for start and stop attributes. More...

virtual void	FreeBuffer (uint8_t *buf)
	Free the given packet buffer. More...

int	GetFileDescriptor (void) const
	Get the associated file descriptor. More...

void	ReceiveCallback (uint8_t *buf, ssize_t len)
	Callback to invoke when a new frame is received. More...

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

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

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

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

Protected Attributes
std::queue< std::pair< uint8_t *, ssize_t > >	m_pendingQueue
	Number of packets that were received and scheduled for read but not yet read. More...

std::mutex	m_pendingReadMutex
	Mutex to increase pending read counter. More...

Private Member Functions
virtual Ptr< FdReader >	DoCreateFdReader (void)
	Create the FdReader object. More...

virtual void	DoFinishStartingDevice (void)
	Complete additional actions, if any, to spin up down the device. More...

virtual void	DoFinishStoppingDevice (void)
	Complete additional actions, if any, to tear down the device. More...

void	ForwardUp (void)
	Forward the frame to the appropriate callback for processing. More...

void	NotifyLinkUp (void)
	Notify that the link is up and ready. More...

void	StartDevice (void)
	Spin up the device. More...

void	StopDevice (void)
	Tear down the device. More...

bool	TransmitStart (Ptr< Packet > p)
	Start Sending a Packet Down the Wire. More...

Private Attributes
Mac48Address	m_address
	The net device mac address. More...

EncapsulationMode	m_encapMode
	The type of encapsulation of the received/transmitted frames. More...

int	m_fd
	The file descriptor used for receive/send network traffic. More...

Ptr< FdReader >	m_fdReader
	Reader for the file descriptor. More...

uint32_t	m_ifIndex
	The ns-3 interface index (in the sense of net device index) that has been assigned to this network device. More...

bool	m_isBroadcast
	Flag indicating whether or not the underlying net device supports broadcast. More...

bool	m_isMulticast
	Flag indicating whether or not the underlying net device supports multicast. More...

TracedCallback	m_linkChangeCallbacks
	Callbacks to fire if the link changes state (up or down). More...

bool	m_linkUp
	Flag indicating whether or not the link is up. More...

TracedCallback< Ptr< const Packet > >	m_macPromiscRxTrace
	The trace source fired for packets successfully received by the device immediately before being forwarded up to higher layers (at the L2/L3 transition). More...

TracedCallback< Ptr< const Packet > >	m_macRxDropTrace
	The trace source fired for packets successfully received by the device but which are dropped before being forwarded up to higher layers (at the L2/L3 transition). More...

TracedCallback< Ptr< const Packet > >	m_macRxTrace
	The trace source fired for packets successfully received by the device immediately before being forwarded up to higher layers (at the L2/L3 transition). More...

TracedCallback< Ptr< const Packet > >	m_macTxDropTrace
	The trace source fired when packets coming into the "top" of the device at the L3/L2 transition are dropped before being queued for transmission. More...

TracedCallback< Ptr< const Packet > >	m_macTxTrace
	The trace source fired when packets come into the "top" of the device at the L3/L2 transition, before being queued for transmission. More...

uint32_t	m_maxPendingReads
	Maximum number of packets that can be received and scheduled for read but not yet read. More...

uint16_t	m_mtu
	The MTU associated to the file descriptor technology. More...

Ptr< Node >	m_node
	The ns-3 node associated to the net device. More...

uint32_t	m_nodeId
	a copy of the node id so the read thread doesn't have to GetNode() in in order to find the node ID. More...

TracedCallback< Ptr< const Packet > >	m_phyRxDropTrace
	The trace source fired when the phy layer drops a packet it has received. More...

TracedCallback< Ptr< const Packet > >	m_phyTxDropTrace
	The trace source fired when the phy layer drops a packet as it tries to transmit it. More...

NetDevice::PromiscReceiveCallback	m_promiscRxCallback
	The callback used to notify higher layers that a packet has been received in promiscuous mode. More...

TracedCallback< Ptr< const Packet > >	m_promiscSnifferTrace
	A trace source that emulates a promiscuous mode protocol sniffer connected to the device. More...

NetDevice::ReceiveCallback	m_rxCallback
	The callback used to notify higher layers that a packet has been received. More...

TracedCallback< Ptr< const Packet > >	m_snifferTrace
	A trace source that emulates a non-promiscuous protocol sniffer connected to the device. More...

EventId	m_startEvent
	NetDevice start event. More...

EventId	m_stopEvent
	NetDevice stop event. More...

Time	m_tStart
	Time to start spinning up the device. More...

Time	m_tStop
	Time to start tearing down the device. More...

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

Detailed Description

a NetDevice to read/write network traffic from/into a file descriptor.

A FdNetDevice object will read and write frames/packets from/to a file descriptor. This file descriptor might be associated to a Linux TAP/TUN device, to a socket or to a user space process, allowing the simulation to exchange traffic with the "outside-world"

Config Paths

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

"/NodeList/[i]/DeviceList/[i]/$ns3::FdNetDevice"

Attributes

Address: The MAC address of this device.
- Set with class: Mac48AddressValue
- Underlying type: Mac48Address
- Initial value: ff:ff:ff:ff:ff:ff
- Flags: construct write read
Start: The simulation time at which to spin up the device thread.
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +0ns
- Flags: construct write read
Stop: The simulation time at which to tear down the device thread.
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +0ns
- Flags: construct write read
EncapsulationMode: The link-layer encapsulation type to use.
- Set with class: ns3::EnumValue
- Underlying type:
- Initial value: Dix
- Flags: construct write read
RxQueueSize: Maximum size of the read queue. This value limits number of packets that have been read from the network into a memory buffer but have not yet been processed by the simulator.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 1000
- Flags: construct write read

TraceSources

MacTx: Trace source indicating a packet has arrived for transmission by this device
Callback signature: ns3::Packet::TracedCallback
MacTxDrop: Trace source indicating a packet has been dropped by the device before transmission
Callback signature: ns3::Packet::TracedCallback
MacPromiscRx: A packet has been received by this device, has been passed up from the physical layer and is being forwarded up the local protocol stack. This is a promiscuous trace,
Callback signature: ns3::Packet::TracedCallback
MacRx: A packet has been received by this device, has been passed up from the physical layer and is being forwarded up the local protocol stack. This is a non-promiscuous trace,
Callback signature: ns3::Packet::TracedCallback
Sniffer: Trace source simulating a non-promiscuous packet sniffer attached to the device
Callback signature: ns3::Packet::TracedCallback
PromiscSniffer: Trace source simulating a promiscuous packet sniffer attached to the device
Callback signature: ns3::Packet::TracedCallback

Size of this type is 528 bytes (on a 64-bit architecture).

Definition at line 84 of file fd-net-device.h.

Member Enumeration Documentation

◆ EncapsulationMode

enum ns3::FdNetDevice::EncapsulationMode

Enumeration of the types of frames supported in the class.

Enumerator
DIX	DIX II / Ethernet II packet.
LLC	802.2 LLC/SNAP Packet
DIXPI	When using TAP devices, if flag IFF_NO_PI is not set on the device, IP packets will have an extra header: Flags [2 bytes] Proto [2 bytes] Raw protocol(IP, IPv6, etc) frame.

Definition at line 96 of file fd-net-device.h.

Constructor & Destructor Documentation

◆ FdNetDevice() [1/2]

ns3::FdNetDevice::FdNetDevice ( )

Constructor for the FdNetDevice.

Definition at line 168 of file fd-net-device.cc.

References NS_LOG_FUNCTION.

◆ ~FdNetDevice()

ns3::FdNetDevice::~FdNetDevice ( )

virtual

Destructor for the FdNetDevice.

Definition at line 183 of file fd-net-device.cc.

References NS_LOG_FUNCTION.

◆ FdNetDevice() [2/2]

ns3::FdNetDevice::FdNetDevice ( FdNetDevice const & )

delete

Member Function Documentation

◆ AddLinkChangeCallback()

void ns3::FdNetDevice::AddLinkChangeCallback ( Callback< void > callback )

virtual

Parameters

callback the callback to invoke

Add a callback invoked whenever the link status changes to UP. This callback is typically used by the IP/ARP layer to flush the ARP cache and by IPv6 stack to flush NDISC cache whenever the link goes up.

Implements ns3::NetDevice.

Definition at line 735 of file fd-net-device.cc.

References ns3::TracedCallback< Ts >::ConnectWithoutContext(), and m_linkChangeCallbacks.

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◆ AllocateBuffer()

uint8_t * ns3::FdNetDevice::AllocateBuffer ( size_t len )

protectedvirtual

Allocate packet buffer.

Parameters

len	the length of the buffer

Returns: A pointer to the newly allocated buffer.

Reimplemented in ns3::DpdkNetDevice.

Definition at line 406 of file fd-net-device.cc.

Referenced by SendFrom().

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◆ DoCreateFdReader()

Ptr< FdReader > ns3::FdNetDevice::DoCreateFdReader ( void )

privatevirtual

Create the FdReader object.

Returns: the created FdReader object

Reimplemented in ns3::NetmapNetDevice.

Definition at line 260 of file fd-net-device.cc.

References m_mtu, and NS_LOG_FUNCTION.

Referenced by StartDevice().

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◆ DoDispose()

void ns3::FdNetDevice::DoDispose ( void )

protectedvirtual

Destructor implementation.

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

Subclasses are expected to implement their real destruction code in an overridden 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 202 of file fd-net-device.cc.

References ns3::Object::DoDispose(), NS_LOG_FUNCTION, and StopDevice().

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◆ DoFinishStartingDevice()

void ns3::FdNetDevice::DoFinishStartingDevice ( void )

privatevirtual

Complete additional actions, if any, to spin up down the device.

Reimplemented in ns3::NetmapNetDevice.

Definition at line 271 of file fd-net-device.cc.

References NS_LOG_FUNCTION.

Referenced by StartDevice().

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◆ DoFinishStoppingDevice()

void ns3::FdNetDevice::DoFinishStoppingDevice ( void )

privatevirtual

Complete additional actions, if any, to tear down the device.

Reimplemented in ns3::NetmapNetDevice, and ns3::DpdkNetDevice.

Definition at line 277 of file fd-net-device.cc.

References NS_LOG_FUNCTION.

Referenced by StopDevice().

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◆ DoInitialize()

void ns3::FdNetDevice::DoInitialize ( void )

protectedvirtual

Method Initialization for start and stop attributes.

Reimplemented from ns3::Object.

Definition at line 189 of file fd-net-device.cc.

References ns3::Object::DoInitialize(), m_tStart, m_tStop, NS_LOG_FUNCTION, ns3::Seconds(), Start(), and Stop().

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◆ ForwardUp()

void ns3::FdNetDevice::ForwardUp ( void )

private

Forward the frame to the appropriate callback for processing.

Definition at line 418 of file fd-net-device.cc.

References ns3::Packet::Copy(), DIXPI, FreeBuffer(), ns3::EthernetHeader::GetDestination(), ns3::EthernetHeader::GetLengthType(), ns3::EthernetHeader::GetSerializedSize(), ns3::LlcSnapHeader::GetSerializedSize(), ns3::Packet::GetSize(), ns3::EthernetHeader::GetSource(), ns3::LlcSnapHeader::GetType(), ns3::Mac48Address::IsBroadcast(), ns3::Mac48Address::IsGroup(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), LLC, m_address, m_encapMode, m_macPromiscRxTrace, m_macRxTrace, m_pendingQueue, m_pendingReadMutex, m_phyRxDropTrace, m_promiscRxCallback, m_promiscSnifferTrace, m_rxCallback, m_snifferTrace, ns3::NetDevice::NS3_PACKET_BROADCAST, ns3::NetDevice::NS3_PACKET_HOST, ns3::NetDevice::NS3_PACKET_MULTICAST, ns3::NetDevice::NS3_PACKET_OTHERHOST, NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::Packet::RemoveHeader(), and ns3::RemovePIHeader().

Referenced by ReceiveCallback().

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◆ FreeBuffer()

void ns3::FdNetDevice::FreeBuffer ( uint8_t * buf )

protectedvirtual

Free the given packet buffer.

Parameters

buf	the buffer to free

Reimplemented in ns3::DpdkNetDevice.

Definition at line 412 of file fd-net-device.cc.

Referenced by ForwardUp(), SendFrom(), and StopDevice().

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◆ GetAddress()

Address ns3::FdNetDevice::GetAddress ( void ) const

virtual

Returns: the current Address of this interface.

Implements ns3::NetDevice.

Definition at line 679 of file fd-net-device.cc.

References m_address.

◆ GetBroadcast()

Address ns3::FdNetDevice::GetBroadcast ( void ) const

virtual

Returns: the broadcast address supported by this netdevice.

Calling this method is invalid if IsBroadcast returns not true.

Implements ns3::NetDevice.

Definition at line 753 of file fd-net-device.cc.

◆ GetChannel()

Ptr< Channel > ns3::FdNetDevice::GetChannel ( void ) const

virtual

Returns: the channel this NetDevice is connected to. The value returned can be zero if the NetDevice is not yet connected to any channel or if the underlying NetDevice has no concept of a channel. i.e., callers must check for zero and be ready to handle it.

Implements ns3::NetDevice.

Definition at line 704 of file fd-net-device.cc.

◆ GetEncapsulationMode()

FdNetDevice::EncapsulationMode ns3::FdNetDevice::GetEncapsulationMode ( void ) const

Get the link layer encapsulation mode of this device.

Returns: The link layer encapsulation mode of this device.

Definition at line 218 of file fd-net-device.cc.

References m_encapMode, and NS_LOG_FUNCTION.

◆ GetFileDescriptor()

int ns3::FdNetDevice::GetFileDescriptor ( void ) const

protected

Get the associated file descriptor.

Returns: the associated file descriptor

Definition at line 667 of file fd-net-device.cc.

References m_fd.

Referenced by ns3::NetmapNetDevice::SyncAndNotifyQueue().

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◆ GetIfIndex()

uint32_t ns3::FdNetDevice::GetIfIndex ( void ) const

virtual

Returns: index ifIndex of the device

Implements ns3::NetDevice.

Definition at line 698 of file fd-net-device.cc.

References m_ifIndex.

◆ GetMtu()

uint16_t ns3::FdNetDevice::GetMtu ( void ) const

virtual

Returns: the link-level MTU in bytes for this interface.

This value is typically used by the IP layer to perform IP fragmentation when needed.

Implements ns3::NetDevice.

Definition at line 723 of file fd-net-device.cc.

References m_mtu.

Referenced by ns3::NetmapNetDevice::DoCreateFdReader().

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◆ GetMulticast() [1/2]

Address ns3::FdNetDevice::GetMulticast ( Ipv4Address multicastGroup ) const

virtual

Make and return a MAC multicast address using the provided multicast group.

RFC 1112 says that an Ipv4 host group address is mapped to an Ethernet multicast address by placing the low-order 23-bits of the IP address into the low-order 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex). Similar RFCs exist for Ipv6 and Eui64 mappings. This method performs the multicast address creation function appropriate to the underlying MAC address of the device. This MAC address is encapsulated in an abstract Address to avoid dependencies on the exact MAC address format.

In the case of net devices that do not support multicast, clients are expected to test NetDevice::IsMulticast and avoid attempting to map multicast packets. Subclasses of NetDevice that do support multicasting are expected to override this method and provide an implementation appropriate to the particular device.

Parameters

multicastGroup The IP address for the multicast group destination of the packet.

Returns: The MAC multicast Address used to send packets to the provided multicast group.

Warning: Calling this method is invalid if IsMulticast returns not true.

See also: IsMulticast()

Implements ns3::NetDevice.

Definition at line 771 of file fd-net-device.cc.

References ns3::Mac48Address::GetMulticast().

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◆ GetMulticast() [2/2]

Address ns3::FdNetDevice::GetMulticast ( Ipv6Address addr ) const

virtual

Get the MAC multicast address corresponding to the IPv6 address provided.

Parameters

addr	IPv6 address

Returns: the MAC multicast address

Warning: Calling this method is invalid if IsMulticast returns not true.

Implements ns3::NetDevice.

Definition at line 777 of file fd-net-device.cc.

References ns3::Mac48Address::GetMulticast().

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◆ GetNode()

Ptr< Node > ns3::FdNetDevice::GetNode ( void ) const

virtual

Returns: the node base class which contains this network interface.

When a subclass needs to get access to the underlying node base class to print the nodeid for example, it can invoke this method.

Implements ns3::NetDevice.

Definition at line 795 of file fd-net-device.cc.

References m_node.

◆ GetTypeId()

TypeId ns3::FdNetDevice::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 81 of file fd-net-device.cc.

References DIX, DIXPI, LLC, m_address, m_encapMode, m_macPromiscRxTrace, m_macRxTrace, m_macTxDropTrace, m_macTxTrace, m_maxPendingReads, m_promiscSnifferTrace, m_snifferTrace, m_tStart, m_tStop, ns3::MakeEnumAccessor(), ns3::MakeEnumChecker(), ns3::MakeMac48AddressAccessor(), ns3::MakeMac48AddressChecker(), ns3::MakeTimeAccessor(), ns3::MakeTimeChecker(), ns3::MakeTraceSourceAccessor(), ns3::MakeUintegerAccessor(), ns3::Seconds(), and ns3::TypeId::SetParent().

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◆ IsBridge()

bool ns3::FdNetDevice::IsBridge ( void ) const

virtual

Return true if the net device is acting as a bridge.

Returns: value of m_isBridge flag

Implements ns3::NetDevice.

Definition at line 783 of file fd-net-device.cc.

◆ IsBroadcast()

bool ns3::FdNetDevice::IsBroadcast ( void ) const

virtual

Returns: true if this interface supports a broadcast address, false otherwise.

Implements ns3::NetDevice.

Definition at line 741 of file fd-net-device.cc.

References m_isBroadcast.

◆ IsLinkUp()

bool ns3::FdNetDevice::IsLinkUp ( void ) const

virtual

Returns: true if link is up; false otherwise

Implements ns3::NetDevice.

Reimplemented in ns3::DpdkNetDevice.

Definition at line 729 of file fd-net-device.cc.

References m_linkUp.

Referenced by SendFrom().

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◆ IsMulticast()

bool ns3::FdNetDevice::IsMulticast ( void ) const

virtual

Returns: value of m_isMulticast flag

Implements ns3::NetDevice.

Definition at line 759 of file fd-net-device.cc.

References m_isMulticast.

◆ IsPointToPoint()

bool ns3::FdNetDevice::IsPointToPoint ( void ) const

virtual

Return true if the net device is on a point-to-point link.

Returns: value of m_isPointToPoint flag

Implements ns3::NetDevice.

Definition at line 789 of file fd-net-device.cc.

◆ NeedsArp()

bool ns3::FdNetDevice::NeedsArp ( void ) const

virtual

Returns: true if ARP is needed, false otherwise.

Called by higher-layers to check if this NetDevice requires ARP to be used.

Implements ns3::NetDevice.

Definition at line 812 of file fd-net-device.cc.

◆ NotifyLinkUp()

void ns3::FdNetDevice::NotifyLinkUp ( void )

private

Notify that the link is up and ready.

Definition at line 685 of file fd-net-device.cc.

References m_linkChangeCallbacks, and m_linkUp.

Referenced by StartDevice().

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◆ ReceiveCallback()

void ns3::FdNetDevice::ReceiveCallback	(	uint8_t *	buf,
		ssize_t	len
	)

protected

Callback to invoke when a new frame is received.

Parameters

buf	a buffer containing the received frame
len	the length of the frame

Definition at line 310 of file fd-net-device.cc.

References ForwardUp(), m_maxPendingReads, m_nodeId, m_pendingQueue, m_pendingReadMutex, ns3::MakeEvent(), NS_LOG_FUNCTION, NS_LOG_WARN, and ns3::Simulator::ScheduleWithContext().

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◆ Send()

bool ns3::FdNetDevice::Send	(	Ptr< Packet >	packet,
		const Address &	dest,
		uint16_t	protocolNumber
	)

virtual

Parameters

packet	packet sent from above down to Network Device
dest	mac address of the destination (already resolved)
protocolNumber	identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received.

Called from higher layer to send packet into Network Device to the specified destination Address

Returns: whether the Send operation succeeded

Implements ns3::NetDevice.

Definition at line 561 of file fd-net-device.cc.

References m_address, NS_LOG_FUNCTION, and SendFrom().

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◆ SendFrom()

bool ns3::FdNetDevice::SendFrom	(	Ptr< Packet >	packet,
		const Address &	source,
		const Address &	dest,
		uint16_t	protocolNumber
	)

virtual

Parameters

packet	packet sent from above down to Network Device
source	source mac address (so called "MAC spoofing")
dest	mac address of the destination (already resolved)
protocolNumber	identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received.

Called from higher layer to send packet into Network Device with the specified source and destination Addresses.

Returns: whether the Send operation succeeded

Implements ns3::NetDevice.

Definition at line 568 of file fd-net-device.cc.

References ns3::Packet::AddHeader(), ns3::AddPIHeader(), AllocateBuffer(), ns3::Mac48Address::ConvertFrom(), ns3::Packet::CopyData(), DIXPI, FreeBuffer(), ns3::Packet::GetSize(), ns3::Packet::GetUid(), IsLinkUp(), LLC, m_encapMode, m_macTxDropTrace, m_macTxTrace, m_mtu, m_promiscSnifferTrace, m_snifferTrace, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::EthernetHeader::SetDestination(), ns3::EthernetHeader::SetLengthType(), ns3::EthernetHeader::SetSource(), ns3::LlcSnapHeader::SetType(), and Write().

Referenced by Send().

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◆ SetAddress()

void ns3::FdNetDevice::SetAddress ( Address address )

virtual

Set the address of this interface.

Parameters

address address to set

Implements ns3::NetDevice.

Definition at line 673 of file fd-net-device.cc.

References first::address, ns3::Mac48Address::ConvertFrom(), and m_address.

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◆ SetEncapsulationMode()

void ns3::FdNetDevice::SetEncapsulationMode ( FdNetDevice::EncapsulationMode mode )

Set the link layer encapsulation mode of this device.

Parameters

mode	The link layer encapsulation mode of this device.

Definition at line 210 of file fd-net-device.cc.

References m_encapMode, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

◆ SetFileDescriptor()

void ns3::FdNetDevice::SetFileDescriptor ( int fd )

Set the associated file descriptor.

Parameters

fd	the file descriptor

Definition at line 658 of file fd-net-device.cc.

References m_fd.

◆ SetIfIndex()

void ns3::FdNetDevice::SetIfIndex ( const uint32_t index )

virtual

Parameters

index ifIndex of the device

Implements ns3::NetDevice.

Definition at line 692 of file fd-net-device.cc.

References m_ifIndex.

◆ SetIsBroadcast()

void ns3::FdNetDevice::SetIsBroadcast ( bool broadcast )

virtual

Set if the NetDevice is able to send Broadcast messages.

Parameters

broadcast true if the NetDevice can send Broadcast

Definition at line 747 of file fd-net-device.cc.

References m_isBroadcast.

◆ SetIsMulticast()

void ns3::FdNetDevice::SetIsMulticast ( bool multicast )

virtual

Set if the NetDevice is able to send Multicast messages.

Parameters

multicast true if the NetDevice can send Multicast

Definition at line 765 of file fd-net-device.cc.

References m_isMulticast.

◆ SetMtu()

bool ns3::FdNetDevice::SetMtu ( const uint16_t mtu )

virtual

Parameters

mtu	MTU value, in bytes, to set for the device

Returns: whether the MTU value was within legal bounds

Override for default MTU defined on a per-type basis.

Implements ns3::NetDevice.

Definition at line 710 of file fd-net-device.cc.

References m_mtu.

◆ SetNode()

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

virtual

Parameters

node	the node associated to this netdevice.

This method is called from ns3::Node::AddDevice.

Implements ns3::NetDevice.

Definition at line 801 of file fd-net-device.cc.

References ns3::Node::GetId(), m_node, and m_nodeId.

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◆ SetPromiscReceiveCallback()

void ns3::FdNetDevice::SetPromiscReceiveCallback ( NetDevice::PromiscReceiveCallback cb )

virtual

Parameters

cb	callback to invoke whenever a packet has been received in promiscuous mode and must be forwarded to the higher layers.

Enables netdevice promiscuous mode and sets the callback that will handle promiscuous mode packets. Note, promiscuous mode packets means all packets, including those packets that can be sensed by the netdevice but which are intended to be received by other hosts.

Implements ns3::NetDevice.

Definition at line 824 of file fd-net-device.cc.

References m_promiscRxCallback.

◆ SetReceiveCallback()

void ns3::FdNetDevice::SetReceiveCallback ( NetDevice::ReceiveCallback cb )

virtual

Parameters

cb	callback to invoke whenever a packet has been received and must be forwarded to the higher layers.

Set the callback to be used to notify higher layers when a packet has been received.

Implements ns3::NetDevice.

Definition at line 818 of file fd-net-device.cc.

References m_rxCallback.

◆ Start()

void ns3::FdNetDevice::Start ( Time tStart )

Set a start time for the device.

Parameters

tStart the start time

Definition at line 225 of file fd-net-device.cc.

References ns3::Simulator::Cancel(), m_startEvent, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), and StartDevice().

Referenced by DoInitialize().

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◆ StartDevice()

void ns3::FdNetDevice::StartDevice ( void )

private

Spin up the device.

Definition at line 241 of file fd-net-device.cc.

References DoCreateFdReader(), DoFinishStartingDevice(), m_fd, m_fdReader, ns3::MakeCallback(), NotifyLinkUp(), NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by Start().

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◆ Stop()

void ns3::FdNetDevice::Stop ( Time tStop )

Set a stop time for the device.

Parameters

tStop the stop time

Definition at line 233 of file fd-net-device.cc.

References ns3::Simulator::Cancel(), m_stopEvent, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), and StopDevice().

Referenced by DoInitialize().

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◆ StopDevice()

void ns3::FdNetDevice::StopDevice ( void )

private

Tear down the device.

Definition at line 283 of file fd-net-device.cc.

References DoFinishStoppingDevice(), FreeBuffer(), m_fd, m_fdReader, m_pendingQueue, and NS_LOG_FUNCTION.

Referenced by DoDispose(), and Stop().

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◆ SupportsSendFrom()

bool ns3::FdNetDevice::SupportsSendFrom ( ) const

virtual

Returns: true if this interface supports a bridging mode, false otherwise.

Implements ns3::NetDevice.

Definition at line 830 of file fd-net-device.cc.

◆ TransmitStart()

bool ns3::FdNetDevice::TransmitStart ( Ptr< Packet > p )

private

Start Sending a Packet Down the Wire.

Parameters

p	packet to send

Returns: true if success, false on failure

◆ Write()

ssize_t ns3::FdNetDevice::Write	(	uint8_t *	buffer,
		size_t	length
	)

virtual

Write packet data to device.

Parameters

buffer	The data.
length	The data length.

Returns: The size of data written.

Reimplemented in ns3::NetmapNetDevice, and ns3::DpdkNetDevice.

Definition at line 649 of file fd-net-device.cc.

References m_fd, and NS_LOG_FUNCTION.

Referenced by SendFrom().

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Member Data Documentation

◆ m_address

Mac48Address ns3::FdNetDevice::m_address

private

The net device mac address.

Definition at line 324 of file fd-net-device.h.

Referenced by ForwardUp(), GetAddress(), GetTypeId(), Send(), and SetAddress().

◆ m_encapMode

EncapsulationMode ns3::FdNetDevice::m_encapMode

private

The type of encapsulation of the received/transmitted frames.

Definition at line 329 of file fd-net-device.h.

Referenced by ForwardUp(), GetEncapsulationMode(), GetTypeId(), SendFrom(), and SetEncapsulationMode().

◆ m_fd

int ns3::FdNetDevice::m_fd

private

The file descriptor used for receive/send network traffic.

Definition at line 314 of file fd-net-device.h.

Referenced by GetFileDescriptor(), SetFileDescriptor(), StartDevice(), StopDevice(), and Write().

◆ m_fdReader

Ptr<FdReader> ns3::FdNetDevice::m_fdReader

private

Reader for the file descriptor.

Definition at line 319 of file fd-net-device.h.

Referenced by StartDevice(), and StopDevice().

◆ m_ifIndex

uint32_t ns3::FdNetDevice::m_ifIndex

private

The ns-3 interface index (in the sense of net device index) that has been assigned to this network device.

Definition at line 304 of file fd-net-device.h.

Referenced by GetIfIndex(), and SetIfIndex().

◆ m_isBroadcast

bool ns3::FdNetDevice::m_isBroadcast

private

Flag indicating whether or not the underlying net device supports broadcast.

Definition at line 346 of file fd-net-device.h.

Referenced by IsBroadcast(), and SetIsBroadcast().

◆ m_isMulticast

bool ns3::FdNetDevice::m_isMulticast

private

Flag indicating whether or not the underlying net device supports multicast.

Definition at line 352 of file fd-net-device.h.

Referenced by IsMulticast(), and SetIsMulticast().

◆ m_linkChangeCallbacks

TracedCallback ns3::FdNetDevice::m_linkChangeCallbacks

private

Callbacks to fire if the link changes state (up or down).

Definition at line 340 of file fd-net-device.h.

Referenced by AddLinkChangeCallback(), and NotifyLinkUp().

◆ m_linkUp

bool ns3::FdNetDevice::m_linkUp

private

Flag indicating whether or not the link is up.

In this case, whether or not the device is connected to a channel.

Definition at line 335 of file fd-net-device.h.

Referenced by IsLinkUp(), and NotifyLinkUp().

◆ m_macPromiscRxTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_macPromiscRxTrace

private

The trace source fired for packets successfully received by the device immediately before being forwarded up to higher layers (at the L2/L3 transition).

This is a promiscuous trace.

See also: class CallBackTraceSource

Definition at line 411 of file fd-net-device.h.

Referenced by ForwardUp(), and GetTypeId().

◆ m_macRxDropTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_macRxDropTrace

private

The trace source fired for packets successfully received by the device but which are dropped before being forwarded up to higher layers (at the L2/L3 transition).

See also: class CallBackTraceSource

Definition at line 429 of file fd-net-device.h.

◆ m_macRxTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_macRxTrace

private

The trace source fired for packets successfully received by the device immediately before being forwarded up to higher layers (at the L2/L3 transition).

This is a non-promiscuous trace.

See also: class CallBackTraceSource

Definition at line 420 of file fd-net-device.h.

Referenced by ForwardUp(), and GetTypeId().

◆ m_macTxDropTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_macTxDropTrace

private

The trace source fired when packets coming into the "top" of the device at the L3/L2 transition are dropped before being queued for transmission.

See also: class CallBackTraceSource

Definition at line 402 of file fd-net-device.h.

Referenced by GetTypeId(), and SendFrom().

◆ m_macTxTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_macTxTrace

private

The trace source fired when packets come into the "top" of the device at the L3/L2 transition, before being queued for transmission.

See also: class CallBackTraceSource

Definition at line 394 of file fd-net-device.h.

Referenced by GetTypeId(), and SendFrom().

◆ m_maxPendingReads

uint32_t ns3::FdNetDevice::m_maxPendingReads

private

Maximum number of packets that can be received and scheduled for read but not yet read.

Definition at line 357 of file fd-net-device.h.

Referenced by GetTypeId(), and ReceiveCallback().

◆ m_mtu

uint16_t ns3::FdNetDevice::m_mtu

private

The MTU associated to the file descriptor technology.

Definition at line 309 of file fd-net-device.h.

Referenced by DoCreateFdReader(), GetMtu(), SendFrom(), and SetMtu().

◆ m_node

Ptr<Node> ns3::FdNetDevice::m_node

private

The ns-3 node associated to the net device.

Definition at line 292 of file fd-net-device.h.

Referenced by GetNode(), and SetNode().

◆ m_nodeId

uint32_t ns3::FdNetDevice::m_nodeId

private

a copy of the node id so the read thread doesn't have to GetNode() in in order to find the node ID.

Thread unsafe reference counting in multithreaded apps is not a good thing.

Definition at line 299 of file fd-net-device.h.

Referenced by ReceiveCallback(), and SetNode().

◆ m_pendingQueue

std::queue< std::pair<uint8_t *, ssize_t> > ns3::FdNetDevice::m_pendingQueue

protected

Number of packets that were received and scheduled for read but not yet read.

Definition at line 243 of file fd-net-device.h.

Referenced by ns3::DpdkNetDevice::DoFinishStoppingDevice(), ForwardUp(), ReceiveCallback(), and StopDevice().

◆ m_pendingReadMutex

std::mutex ns3::FdNetDevice::m_pendingReadMutex

protected

Mutex to increase pending read counter.

Definition at line 238 of file fd-net-device.h.

Referenced by ns3::DpdkNetDevice::DoFinishStoppingDevice(), ForwardUp(), and ReceiveCallback().

◆ m_phyRxDropTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_phyRxDropTrace

private

The trace source fired when the phy layer drops a packet it has received.

See also: class CallBackTraceSource

Definition at line 446 of file fd-net-device.h.

Referenced by ForwardUp().

◆ m_phyTxDropTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_phyTxDropTrace

private

The trace source fired when the phy layer drops a packet as it tries to transmit it.

Todo:: Remove: this TracedCallback is never invoked.

See also: class CallBackTraceSource

Definition at line 439 of file fd-net-device.h.

◆ m_promiscRxCallback

NetDevice::PromiscReceiveCallback ns3::FdNetDevice::m_promiscRxCallback

private

The callback used to notify higher layers that a packet has been received in promiscuous mode.

Definition at line 386 of file fd-net-device.h.

Referenced by ForwardUp(), and SetPromiscReceiveCallback().

◆ m_promiscSnifferTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_promiscSnifferTrace

private

A trace source that emulates a promiscuous mode protocol sniffer connected to the device.

This trace source fire on packets destined for any host just like your average everyday packet sniffer.

On the transmit size, this trace hook will fire after a packet is dequeued from the device queue for transmission. In Linux, for example, this would correspond to the point just before a device hard_start_xmit where dev_queue_xmit_nit is called to dispatch the packet to the PF_PACKET ETH_P_ALL handlers.

On the receive side, this trace hook will fire when a packet is received, just before the receive callback is executed. In Linux, for example, this would correspond to the point at which the packet is dispatched to packet sniffers in netif_receive_skb.

See also: class CallBackTraceSource

Definition at line 486 of file fd-net-device.h.

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

◆ m_rxCallback

NetDevice::ReceiveCallback ns3::FdNetDevice::m_rxCallback

private

The callback used to notify higher layers that a packet has been received.

Definition at line 381 of file fd-net-device.h.

Referenced by ForwardUp(), and SetReceiveCallback().

◆ m_snifferTrace

TracedCallback<Ptr<const Packet> > ns3::FdNetDevice::m_snifferTrace

private

A trace source that emulates a non-promiscuous protocol sniffer connected to the device.

Unlike your average everyday sniffer, this trace source will not fire on PACKET_OTHERHOST events.

On the transmit size, this trace hook will fire after a packet is dequeued from the device queue for transmission. In Linux, for example, this would correspond to the point just before a device hard_start_xmit where dev_queue_xmit_nit is called to dispatch the packet to the PF_PACKET ETH_P_ALL handlers.

On the receive side, this trace hook will fire when a packet is received, just before the receive callback is executed. In Linux, for example, this would correspond to the point at which the packet is dispatched to packet sniffers in netif_receive_skb.

See also: class CallBackTraceSource

Definition at line 466 of file fd-net-device.h.

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

◆ m_startEvent

EventId ns3::FdNetDevice::m_startEvent

private

NetDevice start event.

Definition at line 372 of file fd-net-device.h.

Referenced by Start().

◆ m_stopEvent

EventId ns3::FdNetDevice::m_stopEvent

private

NetDevice stop event.

Definition at line 376 of file fd-net-device.h.

Referenced by Stop().

◆ m_tStart

Time ns3::FdNetDevice::m_tStart

private

Time to start spinning up the device.

Definition at line 362 of file fd-net-device.h.

Referenced by DoInitialize(), and GetTypeId().

◆ m_tStop

Time ns3::FdNetDevice::m_tStop

private

Time to start tearing down the device.

Definition at line 367 of file fd-net-device.h.

Referenced by DoInitialize(), and GetTypeId().

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

src/fd-net-device/model/fd-net-device.h
src/fd-net-device/model/fd-net-device.cc

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Config Paths

Attributes

TraceSources

Member Enumeration Documentation

◆ EncapsulationMode

Constructor & Destructor Documentation

◆ FdNetDevice() [1/2]

◆ ~FdNetDevice()

◆ FdNetDevice() [2/2]

Member Function Documentation

◆ AddLinkChangeCallback()

◆ AllocateBuffer()

◆ DoCreateFdReader()

◆ DoDispose()

◆ DoFinishStartingDevice()

◆ DoFinishStoppingDevice()

◆ DoInitialize()

◆ ForwardUp()

◆ FreeBuffer()

◆ GetAddress()

◆ GetBroadcast()

◆ GetChannel()

◆ GetEncapsulationMode()

◆ GetFileDescriptor()

◆ GetIfIndex()

◆ GetMtu()

◆ GetMulticast() [1/2]

◆ GetMulticast() [2/2]

◆ GetNode()

◆ GetTypeId()

◆ IsBridge()

◆ IsBroadcast()

◆ IsLinkUp()

◆ IsMulticast()

◆ IsPointToPoint()

◆ NeedsArp()

◆ NotifyLinkUp()

◆ ReceiveCallback()

◆ Send()

◆ SendFrom()

◆ SetAddress()

◆ SetEncapsulationMode()

◆ SetFileDescriptor()

◆ SetIfIndex()

◆ SetIsBroadcast()

◆ SetIsMulticast()

◆ SetMtu()

◆ SetNode()

◆ SetPromiscReceiveCallback()

◆ SetReceiveCallback()

◆ Start()

◆ StartDevice()

◆ Stop()

◆ StopDevice()

◆ SupportsSendFrom()

◆ TransmitStart()

◆ Write()

Member Data Documentation

◆ m_address

◆ m_encapMode

◆ m_fd

◆ m_fdReader

◆ m_ifIndex

◆ m_isBroadcast

◆ m_isMulticast

◆ m_linkChangeCallbacks

◆ m_linkUp

◆ m_macPromiscRxTrace

◆ m_macRxDropTrace

◆ m_macRxTrace

◆ m_macTxDropTrace