C++ definition

Provides a bidirectional connection to an IPv4 socket of the host computer which is running the simulation. It writes the packets arrived on upperLayerIn gate to the specified real socket, and sends out packets arrived from the real socket on upperLayerOut gate.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Used in compound modules

Name	Type	Description
ExtLowerIpv4	compound module	Provides IPv4 layer functionality for network emulation that connects the simulation to a real network on the host computer. Sends packets from the simulation to the real network and receives packets from the real network into the simulation using raw sockets. Uses ~Ipv4Encap for packet encapsulation and ~ExtIpv4Socket for the connection to the host's networking stack.

Extends

Name	Type	Description
SimpleModule	simple module	Base module for all INET simple modules.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
namespace	string	""
packetName	string	"Ext-%p-%t-%n"

Properties

Name	Value	Description
class	ExtIpv4Socket
display	i=block/rxtx

Gates

Name	Direction	Size	Description
upperLayerIn	input
upperLayerOut	output

Signals

Name	Type	Unit	Description
packetReceived	Packet
packetSent	Packet
packetReceivedFromUpper	Packet
packetSentToUpper	Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode	Description
packetReceived	packets received	packetReceived	count, sum(packetBytes), vector(packetBytes)		none
packetSentFromUpper	packets sent to higher layer	packetSentToUpper	count, sum(packetBytes), vector(packetBytes)		none
packetSent	packets sent	packetSent	count, sum(packetBytes), vector(packetBytes)		none
packetReceivedFromUpper	packets received from higher layer	packetReceivedFromUpper	count, sum(packetBytes), vector(packetBytes)		none

Source code

//
// Provides a bidirectional connection to an IPv4 socket of the host
// computer which is running the simulation. It writes the packets arrived on
// `upperLayerIn` gate to the specified real socket, and sends out packets arrived
// from the real socket on `upperLayerOut` gate.
//
simple ExtIpv4Socket extends SimpleModule
{
    parameters:
        @class(ExtIpv4Socket);
        string namespace = default("");
        string packetName = default("Ext-%p-%t-%n");
        @display("i=block/rxtx");
        @signal[packetSentToUpper](type=Packet);
        @signal[packetReceivedFromUpper](type=Packet);
        @signal[packetSent](type=Packet);
        @signal[packetReceived](type=Packet);
        @statistic[packetSentFromUpper](title="packets sent to higher layer"; source=packetSentToUpper; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetReceivedFromUpper](title="packets received from higher layer"; source=packetReceivedFromUpper; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetSent](title="packets sent"; source=packetSent; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetReceived](title="packets received"; source=packetReceived; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
    gates:
        input upperLayerIn;
        output upperLayerOut @loose;
}

File: src/inet/emulation/networklayer/ipv4/ExtIpv4Socket.ned

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