private DataFragment ReceivePacket()
{
while (true)
{
DataFragment data = _packetReceiver.WaitResponse();
PacketType pt = (PacketType)data.ByteAt(0); //shortcut
if (pt == PacketType.SSH_MSG_IGNORE)
{
SSH1DataReader r = new SSH1DataReader(data);
r.ReadPacketType();
if (_eventReceiver != null)
{
_eventReceiver.OnIgnoreMessage(r.ReadString());
}
}
else if (pt == PacketType.SSH_MSG_DEBUG)
{
SSH1DataReader r = new SSH1DataReader(data);
r.ReadPacketType();
if (_eventReceiver != null)
{
_eventReceiver.OnDebugMessage(false, r.ReadString());
}
}
else
{
return(data);
}
}
}
public override void OnData(DataFragment data)
{
try {
_buffer.Append(data);
//ここで複数パケットを一括して受け取った場合を考慮している
while (ConstructPacket())
{
if (_packet.Length >= 1 && _packet.ByteAt(0) == (byte)PacketType.SSH_MSG_NEWKEYS)
{
// next packet must be decrypted with the new key
lock (_cipherSync) {
_waitingNewCipher = true;
// Note: SSH2SynchronizedPacketReceiver.OnData() queue the packet then
// wait until the packet is dequeued
_inner_handler.OnData(_packet);
Monitor.Wait(_cipherSync, 1000);
if (_waitingNewCipher)
{
// something is going wrong...
_waitingNewCipher = false;
_cipher = null;
_mac = null;
_macEnabled = false;
_head = null;
}
}
}
else
{
_inner_handler.OnData(_packet);
}
}
}
catch (Exception ex) {
OnError(ex);
}
}
private PacketType SneakPacketType(DataFragment data)
{
return((PacketType)data.ByteAt(0));
}
private bool IsMsgNewKeys(DataFragment packet)
{
return(packet.Length >= 1 && packet.ByteAt(0) == (byte)PacketType.SSH_MSG_NEWKEYS);
}