Network Interface Functions. More...

Topics
	IPADDR4 Functions
	Network Interface functions with IPADDR4 return types.

	Low Level Processing (NetDoRx)
	Callback functions to add custom Ethernet handlers and pass Ethernet frames at the bottom of the TCP/IP stack.

Classes
class	InterfaceBlock
	Network interface configuration block class for interface control and configuration. More...

Functions
void	showIpAddresses ()
	Print system IP addresses to stdout.

int	Removeinterface (int interface)
	Remove a network interface from the system.

void	EnableMulticast (MACADR macAddress, int interface=0)
	Enable Multicast on an existing interface.

void	DisableMulticast (MACADR macAddress, int interface=0)
	Disable Multicast on an existing interface.

InterfaceBlock *	GetInterfaceBlock (int interface=0)
	Get an InterfaceBlock control and configuration object.

int32_t	GetFirstInterface (void)
	Returns the Interface Number of the first registered network interface.

int32_t	GetNextInterface (int lastInterface)
	Returns the Interface Number of the next registered network interface.

int32_t	GetInterfaceNumber (InterfaceBlock *pifb)
	Returns the Interface Number of the specified network interface InterfaceBlock.

int32_t	GetInterfaceForMyAddress4 (IPADDR4 ip)
	Returns the Interface Number of the specified network interface IPv4 address.

bool	GetInterfaceLink (int ifn)
	Returns the network interface link status.

MACADR	InterfaceMAC (int interface)
	Returns the MAC address of the specified network interface.

bool	InterfaceLinkActive (int interface)
	Returns the link status of the specified network interface.

int	InterfaceLinkSpeed (int interface)
	Returns the 10/100 link speed of the specified network interface.

bool	InterfaceLinkDuplex (int interface)
	Returns the full or half link duplex of the specified network interface.

const char *	InterfaceName (int interface)
	Returns the interface name of the specified network interface.

Detailed Description

Network Interface Functions.

Network interface management and low-level frame processing.

#include< ipshow.h>

#include< netinterface.h>

Network Interfaces are configured and controlled C++ InterfaceBlock objects. The InterfaceBlock contains variables and member functions for things such as:

The Configuration Server interface
IP settings for both IPv4 and IPv6 types
Configuration to static or DHCP, and DHCP status (both v4 and v6)
Multihome
Routing
AutoIP

Note: While the recommended method for getting and setting network interface parameters is to obtain a pointer to an InterfaceBlock, there are also non-member functions of the object that can be used for situations that are best served by a single function call, such as just getting a single IP address of an interface. When using those functions pay special attention to the return value type. While IPADDR should be used because it supports both IPADDR4 and IPADDR6 types automatically, some of these helper functions may specifically return an IPADDR4 type.

#include< netrx.h>

Function Documentation

◆ DisableMulticast()

void DisableMulticast	(	MACADR	macAddress,
		int	interface = 0 )

#include <netinterface.h>

Disable Multicast on an existing interface.

Calls registered interface multicast routine.

Parameters

macAddress	Multicast MAC address.
interface	Interface number. If not specified or 0, operates on the first registerd interface.

See also: EnableMulticast(MACADR macAddress, int interface), InterfaceBlock::EnableMulticast()

◆ EnableMulticast()

void EnableMulticast	(	MACADR	macAddress,
		int	interface = 0 )

#include <netinterface.h>

Enable Multicast on an existing interface.

Calls registered interface multicast routine.

Parameters

macAddress	Multicast MAC address.
interface	Interface number. If not specified, default is is 0.

See also: DisableMulticast(), InterfaceBlock::EnableMulticast()

◆ GetFirstInterface()

int32_t GetFirstInterface ( void )

#include <netinterface.h>

Returns the Interface Number of the first registered network interface.

If called on a device with wired Ethernet, this will be the first Ethernet interface typlical interface number 1.

Returns: Interface number of the first network interface, or 0 if none exist.

◆ GetInterfaceBlock()

InterfaceBlock * GetInterfaceBlock ( int interface = 0 )

#include <netinterface.h>

Get an InterfaceBlock control and configuration object.

Parameters

interface Interface number. If not specified or 0, operates on the first registerd interface.

Returns: Pointer to an InterfaceBlock on success, Null if requested interface is invalid.

◆ GetInterfaceForMyAddress4()

int32_t GetInterfaceForMyAddress4 ( IPADDR4 ip )

#include <netinterface.h>

Returns the Interface Number of the specified network interface IPv4 address.

Parameters

ip	IPv4 network interface address.

Returns: Interface number of the specified IPv4 address

◆ GetInterfaceLink()

bool GetInterfaceLink ( int ifn )

#include <netinterface.h>

Returns the network interface link status.

Parameters

ifn	Network interface number

Returns: True if link, otherwise false

See also: InterfaceBlock::LinkActive(), InterfaceLinkActive()

◆ GetInterfaceNumber()

int32_t GetInterfaceNumber ( InterfaceBlock * pifb )

#include <netinterface.h>

Returns the Interface Number of the specified network interface InterfaceBlock.

Parameters

pifb	Pointer to the InterfaceBlock

Returns: Interface number of the InterfaceBlock.

See also: InterfaceBlock::GetInterfaceNumber()

◆ GetNextInterface()

int32_t GetNextInterface ( int lastInterface )

#include <netinterface.h>

Returns the Interface Number of the next registered network interface.

Parameters

lastInterface Specifies the interface number starting point to begin search.

Returns: Interface number of the next network interface, or 0 if none exist.

◆ InterfaceLinkActive()

bool InterfaceLinkActive ( int interface )

#include <netinterface.h>

Returns the link status of the specified network interface.

Parameters

interface Interface number

Returns: True if link is active, otherwise false

See also: InterfaceBlock::LinkActive(), GetInterfaceLink()

◆ InterfaceLinkDuplex()

bool InterfaceLinkDuplex ( int interface )

#include <netinterface.h>

Returns the full or half link duplex of the specified network interface.

Parameters

interface Interface number

Returns: True if full duplex, false if half duplex

See also: InterfaceBlock::LinkDuplex()

◆ InterfaceLinkSpeed()

int InterfaceLinkSpeed ( int interface )

#include <netinterface.h>

Returns the 10/100 link speed of the specified network interface.

Parameters

interface Interface number

Returns: 10 or 100 representing the Mbps speed

See also: InterfaceBlock::LinkSpeed()

◆ InterfaceMAC()

MACADR InterfaceMAC ( int interface )

#include <netinterface.h>

Returns the MAC address of the specified network interface.

Parameters

interface Interface number

Returns: MAC address of type MACADR

◆ InterfaceName()

const char * InterfaceName ( int interface )

#include <netinterface.h>

Returns the interface name of the specified network interface.

Parameters

interface Interface number

Returns: Pointer to a character string containing the name of the network interface

See also: InterfaceBlock::GetInterfaceName()

◆ Removeinterface()

int Removeinterface ( int interface )

#include <netinterface.h>

Remove a network interface from the system.

Parameters

interface Interface number

Returns: 1 if successful, 0 if invalid interface number

See also: InterfaceBlock::RegisterInterface()

Topics

Classes

Functions

Detailed Description

Function Documentation

◆ DisableMulticast()

◆ EnableMulticast()

◆ GetFirstInterface()

◆ GetInterfaceBlock()

◆ GetInterfaceForMyAddress4()

◆ GetInterfaceLink()

◆ GetInterfaceNumber()

◆ GetNextInterface()

◆ InterfaceLinkActive()

◆ InterfaceLinkDuplex()

◆ InterfaceLinkSpeed()

◆ InterfaceMAC()

◆ InterfaceName()

◆ Removeinterface()