This is a port of Google's Packetdrill testing tool into the INET Framework.

Google released the script-based Packetdrill tool in 2013. It allows one to test transport protocols like UDP and TCP on Linux and BSD-based operating systems. Scripts define test cases that inject packets to the protocol implementation under test, perform operations using the API controlling the transport protocol, and verify the sending of packets, all at specified times. The ported version provides a simple and powerful method of testing transport protocols implemented in INET.

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
PacketDrillHost	compound module	IPv4 host with SCTP, TCP, UDP layers and a packetdrill application. The application has a direct connection to the TunInterface.

Parameters

Name	Type	Default value	Description
scriptFile	string
startTime	double	0s
localPort	int		port number of the initiator
remotePort	int
localAddress	string
remoteAddress	string
interfaceTableModule	string
interface	string		tun interface name
inboundStreams	int	20
outboundStreams	int	20
streamReset	int	0
crcMode	string	"declared"
latency	double	0s

Properties

Name	Value	Description
display	i=block/app

Gates

Name	Direction	Size	Description
socketIn	input
socketOut	output

Source code

//
// This is a port of Google's Packetdrill testing tool into the INET Framework.
//
// Google released the script-based Packetdrill tool in 2013. It allows one
// to test transport protocols like UDP and TCP on Linux and BSD-based
// operating systems. Scripts define test cases that inject packets to the
// protocol implementation under test, perform operations using the API
// controlling the transport protocol, and verify the sending of packets, all
// at specified times. The ported version provides a simple and powerful
// method of testing transport protocols implemented in INET.
//
simple PacketDrillApp like IApp
{
    parameters:
        string scriptFile;
        double startTime @unit(s) = default(0s);
        int localPort; // port number of the initiator
        int remotePort;
        string localAddress;
        string remoteAddress;
        string interfaceTableModule;
        string interface;   // tun interface name
        int inboundStreams = default(20);
        int outboundStreams = default(20);
        int streamReset = default(0);
        string crcMode @enum("declared","computed") = default("declared");
        double latency @unit(s) = default(0s);
        @display("i=block/app");
    gates:
        input socketIn;
        output socketOut;
}

File: src/inet/applications/packetdrill/PacketDrillApp.ned

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