/**
* Got an SSH_MSG_UNIMPLEMENTED, so lets see where we're at and act accordingly.
*
* @param packet The 'unimplemented' packet received
* @throws TransportException
*/
private void gotUnimplemented(SSHPacket packet) throws SSHException {
long seqNum = packet.readUInt32();
log.debug("Received SSH_MSG_UNIMPLEMENTED #{}", seqNum);
if (kexer.isKexOngoing())
throw new TransportException("Received SSH_MSG_UNIMPLEMENTED while exchanging keys");
getService().notifyUnimplemented(seqNum);
}
@Override
public long write(SSHPacket payload) throws TransportException {
writeLock.lock();
try {
if (kexer.isKexOngoing()) {
// Only transport layer packets (1 to 49) allowed except SERVICE_REQUEST
final Message m = Message.fromByte(payload.array()[payload.rpos()]);
if (!m.in(1, 49) || m == Message.SERVICE_REQUEST) {
assert m != Message.KEXINIT;
kexer.waitForDone();
}
} else if (encoder.getSequenceNumber() == 0) // We get here every 2**32th packet
kexer.startKex(true);
final long seq = encoder.encode(payload);
try {
connInfo.out.write(payload.array(), payload.rpos(), payload.available());
connInfo.out.flush();
} catch (IOException ioe) {
throw new TransportException(ioe);
}
return seq;
} finally {
writeLock.unlock();
}
}
