public void TestSSUOutOfOrderFragmentation()
{
var fragmenter = new DataFragmenter();
var smalldata = new BufLen(BufUtils.RandomBytes(4 + BufUtils.RandomInt(4)));
var smalldatamessage = new DataMessage(smalldata);
var smalldata1 = new BufLen(BufUtils.RandomBytes(40 + BufUtils.RandomInt(14)));
var smalldatamessage1 = new DataMessage(smalldata1);
var smalldata2 = new BufLen(BufUtils.RandomBytes(130 + BufUtils.RandomInt(39)));
var smalldatamessage2 = new DataMessage(smalldata2);
var smalldata3 = new BufLen(BufUtils.RandomBytes(770 + BufUtils.RandomInt(220)));
var smalldatamessage3 = new DataMessage(smalldata3);
var data = new BufLen(BufUtils.RandomBytes(30000 + BufUtils.RandomInt(30)));
var datamessage = new DataMessage(data);
var data2 = new BufLen(BufUtils.RandomBytes(20000 + BufUtils.RandomInt(1040)));
var datamessage2 = new DataMessage(data2);
var dest = new byte[MTUConfig.BufferSize];
var start = new BufLen(dest);
var writer = new BufRefLen(dest);
var tosend = new LinkedList <II2NPHeader16>();
tosend.AddLast(smalldatamessage.CreateHeader16);
tosend.AddLast(datamessage.CreateHeader16);
tosend.AddLast(smalldatamessage1.CreateHeader16);
tosend.AddLast(smalldatamessage2.CreateHeader16);
tosend.AddLast(smalldatamessage3.CreateHeader16);
tosend.AddLast(datamessage2.CreateHeader16);
var tosendshuffle = tosend.Shuffle();
var tosendshuffled = new ConcurrentQueue <II2NPHeader16>(tosendshuffle);
var sent = new LinkedList <II2NPHeader16>();
foreach (var one in tosend)
{
sent.AddLast(one);
}
var sentdata = new LinkedList <BufLen>();
while (true)
{
var flagbuf = writer.ReadBufLen(1);
var fragcountbuf = writer.ReadBufLen(1);
var fragments = fragmenter.Send(writer, tosendshuffled);
if (fragments == 0)
{
break;
}
flagbuf[0] |= (byte)SSUDataMessage.DataMessageFlags.WantReply;
// no ACKs
fragcountbuf[0] = (byte)fragments;
sentdata.AddLast(new BufLen(start, 0, writer - start));
dest = new byte[MTUConfig.BufferSize];
start = new BufLen(dest);
writer = new BufRefLen(dest);
}
var shuffled = sentdata.Shuffle();
var receivedmessages = new LinkedList <II2NPHeader16>();
var defragmenter = new DataDefragmenter();
foreach (var frag in shuffled)
{
var datamsg = new SSUDataMessage(new BufRefLen(frag), defragmenter);
if (datamsg.NewMessages != null)
{
foreach (var msg in datamsg.NewMessages)
{
var i2npmsg = I2NPMessage.ReadHeader16((BufRefLen)msg.GetPayload());
receivedmessages.AddLast(i2npmsg);
}
}
}
Assert.IsTrue(receivedmessages.Count == sent.Count);
foreach (var sentmsg in sent)
{
Assert.IsTrue(receivedmessages.SingleOrDefault(m => ((DataMessage)m.Message).Payload ==
((DataMessage)sentmsg.Message).Payload) != null);
}
}
public void TestSSUFragmentation1()
{
var fragmenter = new DataFragmenter();
var smalldata = new BufLen(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, });
var smalldatamessage = new DataMessage(smalldata);
var dest = new byte[MTUConfig.BufferSize];
var start = new BufLen(dest);
var writer = new BufRefLen(dest);
var tosend = new ConcurrentQueue <II2NPHeader16>();
tosend.Enqueue(smalldatamessage.CreateHeader16);
var sent = new LinkedList <II2NPHeader16>();
foreach (var one in tosend)
{
sent.AddLast(one);
}
var sentdata = new LinkedList <BufLen>();
while (true)
{
var flagbuf = writer.ReadBufLen(1);
var fragcountbuf = writer.ReadBufLen(1);
var fragments = fragmenter.Send(writer, tosend);
if (fragments == 0)
{
break;
}
flagbuf[0] |= (byte)SSUDataMessage.DataMessageFlags.WantReply;
// no ACKs
fragcountbuf[0] = (byte)fragments;
sentdata.AddLast(new BufLen(start, 0, writer - start));
dest = new byte[MTUConfig.BufferSize];
start = new BufLen(dest);
writer = new BufRefLen(dest);
}
var receivedmessages = new LinkedList <II2NPHeader16>();
var defragmenter = new DataDefragmenter();
foreach (var frag in sentdata)
{
var datamsg = new SSUDataMessage(new BufRefLen(frag), defragmenter);
if (datamsg.NewMessages != null)
{
foreach (var msg in datamsg.NewMessages)
{
var i2npmsg = I2NPMessage.ReadHeader16((BufRefLen)msg.GetPayload());
receivedmessages.AddLast(i2npmsg);
}
}
}
Assert.IsTrue(receivedmessages.Count == sent.Count);
/*
*
* var st1 = FreenetBase64.Encode( sent.First.Value.Message.Payload );
* var st2 = FreenetBase64.Encode( receivedmessages.First.Value.Message.Payload );
*
* Console.WriteLine( st1 );
* Console.WriteLine( st2 );
*
* Console.WriteLine( sent.First.Value.Message );
* Console.WriteLine( receivedmessages.First.Value.Message );
*
* Console.WriteLine( sent.First.Value.Message.Payload.ToString( "I500" ) );
* Console.WriteLine( receivedmessages.First.Value.Message.Payload.ToString( "I500" ) );
*/
foreach (var sentmsg in sent)
{
Assert.IsTrue(receivedmessages.Any(m => m.Message.Payload ==
sentmsg.Message.Payload));
}
}
public void TestSSUFragmentation()
{
var fragmenter = new DataFragmenter();
var smalldata = new BufLen(BufUtils.RandomBytes(30));
var smalldatamessage = new DataMessage(smalldata);
var data = new BufLen(BufUtils.RandomBytes(30000));
var datamessage = new DataMessage(data);
var data2 = new BufLen(BufUtils.RandomBytes(30000));
var datamessage2 = new DataMessage(data2);
var dest = new byte[MTUConfig.BufferSize];
var start = new BufLen(dest);
var writer = new BufRefLen(dest);
var tosend = new ConcurrentQueue <II2NPHeader16>();
tosend.Enqueue(smalldatamessage.CreateHeader16);
tosend.Enqueue(datamessage.CreateHeader16);
tosend.Enqueue(datamessage2.CreateHeader16);
var sent = new LinkedList <II2NPHeader16>();
foreach (var one in tosend)
{
sent.AddLast(one);
}
var sentdata = new LinkedList <BufLen>();
while (true)
{
var flagbuf = writer.ReadBufLen(1);
var fragcountbuf = writer.ReadBufLen(1);
var fragments = fragmenter.Send(writer, tosend);
if (fragments == 0)
{
break;
}
flagbuf[0] |= (byte)SSUDataMessage.DataMessageFlags.WantReply;
// no ACKs
fragcountbuf[0] = (byte)fragments;
sentdata.AddLast(new BufLen(start, 0, writer - start));
dest = new byte[MTUConfig.BufferSize];
start = new BufLen(dest);
writer = new BufRefLen(dest);
}
var receivedmessages = new LinkedList <II2NPHeader16>();
var defragmenter = new DataDefragmenter();
foreach (var frag in sentdata)
{
var datamsg = new SSUDataMessage(new BufRefLen(frag), defragmenter);
if (datamsg.NewMessages != null)
{
foreach (var msg in datamsg.NewMessages)
{
var i2npmsg = I2NPMessage.ReadHeader16((BufRefLen)msg.GetPayload());
receivedmessages.AddLast(i2npmsg);
}
}
}
Assert.IsTrue(receivedmessages.Count == sent.Count);
foreach (var sentmsg in sent)
{
Assert.IsTrue(receivedmessages.Any(m => m.Message.Payload ==
sentmsg.Message.Payload));
}
}
public void TestSSUFragmentation()
{
var fragmenter = new DataFragmenter();
var smalldata = new BufLen(BufUtils.Random(30));
var smalldatamessage = new I2PCore.Tunnel.I2NP.Messages.DataMessage(smalldata);
var data = new BufLen(BufUtils.Random(30000));
var datamessage = new I2PCore.Tunnel.I2NP.Messages.DataMessage(data);
var data2 = new BufLen(BufUtils.Random(30000));
var datamessage2 = new I2PCore.Tunnel.I2NP.Messages.DataMessage(data2);
var dest = new byte[MTUConfig.BufferSize];
var start = new BufLen(dest);
var writer = new BufRefLen(dest);
var tosend = new LinkedList <II2NPHeader5>();
tosend.AddLast(smalldatamessage.Header5);
tosend.AddLast(datamessage.Header5);
tosend.AddLast(datamessage2.Header5);
var sent = new LinkedList <II2NPHeader5>();
foreach (var one in tosend)
{
sent.AddLast(one);
}
var sentdata = new LinkedList <BufLen>();
while (true)
{
var flagbuf = writer.ReadBufLen(1);
var fragcountbuf = writer.ReadBufLen(1);
var fragments = fragmenter.Send(writer, tosend);
if (fragments == 0)
{
break;
}
flagbuf[0] |= (byte)I2PCore.Transport.SSU.SSUDataMessage.DataMessageFlags.WantReply;
// no ACKs
fragcountbuf[0] = (byte)fragments;
sentdata.AddLast(new BufLen(start, 0, writer - start));
dest = new byte[MTUConfig.BufferSize];
start = new BufLen(dest);
writer = new BufRefLen(dest);
}
var receivedmessages = new LinkedList <II2NPHeader5>();
var defragmenter = new DataDefragmenter();
foreach (var frag in sentdata)
{
var datamsg = new I2PCore.Transport.SSU.SSUDataMessage(new BufRefLen(frag), defragmenter);
if (datamsg.NewMessages != null)
{
foreach (var msg in datamsg.NewMessages)
{
var i2npmsg = I2NPMessage.ReadHeader5((BufRefLen)msg.GetPayload());
receivedmessages.AddLast(i2npmsg);
}
}
}
Assert.IsTrue(receivedmessages.Count == sent.Count);
foreach (var sentmsg in sent)
{
Assert.IsTrue(receivedmessages.SingleOrDefault(m => ((I2PCore.Tunnel.I2NP.Messages.DataMessage)m.Message).Payload ==
((I2PCore.Tunnel.I2NP.Messages.DataMessage)sentmsg.Message).Payload) != null);
}
}
