public void run() {
try {
state.setValue(TransportProtocolState.NEGOTIATING_PROTOCOL);
log.info("Registering transport protocol messages with inputstream");
algorithmsOut = new TransportProtocolAlgorithmSync();
algorithmsIn = new TransportProtocolAlgorithmSync();
// Create the input/output streams
sshIn = new TransportProtocolInputStream(this, provider.getInputStream(), algorithmsIn);
sshOut = new TransportProtocolOutputStream(provider.getOutputStream(), this, algorithmsOut);
// Register the transport layer messages that this class will handle
messageStore.registerMessage(SshMsgDisconnect.SSH_MSG_DISCONNECT, SshMsgDisconnect.class);
messageStore.registerMessage(SshMsgIgnore.SSH_MSG_IGNORE, SshMsgIgnore.class);
messageStore.registerMessage(
SshMsgUnimplemented.SSH_MSG_UNIMPLEMENTED, SshMsgUnimplemented.class);
messageStore.registerMessage(SshMsgDebug.SSH_MSG_DEBUG, SshMsgDebug.class);
messageStore.registerMessage(SshMsgKexInit.SSH_MSG_KEX_INIT, SshMsgKexInit.class);
messageStore.registerMessage(SshMsgNewKeys.SSH_MSG_NEWKEYS, SshMsgNewKeys.class);
registerTransportMessages();
List list = SshKeyExchangeFactory.getSupportedKeyExchanges();
Iterator it = list.iterator();
while (it.hasNext()) {
String keyExchange = (String) it.next();
SshKeyExchange kex = SshKeyExchangeFactory.newInstance(keyExchange);
kex.init(this);
kexs.put(keyExchange, kex);
}
// call abstract to initialise the local ident string
setLocalIdent();
// negotiate the protocol version
negotiateVersion();
startBinaryPacketProtocol();
} catch (Throwable e) {
if (e instanceof IOException) {
state.setLastError((IOException) e);
}
if (state.getValue() != TransportProtocolState.DISCONNECTED) {
log.error("The Transport Protocol thread failed", e);
// log.info(e.getMessage());
stop();
}
} finally {
thread = null;
}
log.debug("The Transport Protocol has been stopped");
}
/**
* Creates a new SshMsgKexInit object.
*
* @param props
*/
public SshMsgKexInit(SshConnectionProperties props) {
super(SSH_MSG_KEX_INIT);
// Create some random data
cookie = new byte[16];
// Seed the random number generator
Random r = ConfigurationLoader.getRND();
// Get the next random bytes into our cookie
r.nextBytes(cookie);
// Get the supported algorithms from the factory objects but adding the
// preffered algorithm to the top of the list
supportedKex =
sortAlgorithmList(SshKeyExchangeFactory.getSupportedKeyExchanges(), props.getPrefKex());
supportedPK = sortAlgorithmList(SshKeyPairFactory.getSupportedKeys(), props.getPrefPublicKey());
supportedEncryptCS =
sortAlgorithmList(SshCipherFactory.getSupportedCiphers(), props.getPrefCSEncryption());
supportedEncryptSC =
sortAlgorithmList(SshCipherFactory.getSupportedCiphers(), props.getPrefSCEncryption());
supportedMacCS = sortAlgorithmList(SshHmacFactory.getSupportedMacs(), props.getPrefCSMac());
supportedMacSC = sortAlgorithmList(SshHmacFactory.getSupportedMacs(), props.getPrefSCMac());
supportedCompCS =
sortAlgorithmList(SshCompressionFactory.getSupportedCompression(), props.getPrefCSComp());
supportedCompSC =
sortAlgorithmList(SshCompressionFactory.getSupportedCompression(), props.getPrefSCComp());
// We currently don't support language preferences
supportedLangCS = new ArrayList();
supportedLangSC = new ArrayList();
// We don't guess (I don't see the point of this in the protocol!)
firstKexFollows = false;
}