/// <summary>Sends client SASL negotiation for general-purpose handshake.</summary>
/// <param name="addr">connection address</param>
/// <param name="underlyingOut">connection output stream</param>
/// <param name="underlyingIn">connection input stream</param>
/// <param name="accessToken">connection block access token</param>
/// <param name="datanodeId">ID of destination DataNode</param>
/// <returns>new pair of streams, wrapped after SASL negotiation</returns>
/// <exception cref="System.IO.IOException">for any error</exception>
private IOStreamPair GetSaslStreams(IPAddress addr, OutputStream underlyingOut, InputStream
underlyingIn, Org.Apache.Hadoop.Security.Token.Token <BlockTokenIdentifier> accessToken
, DatanodeID datanodeId)
{
IDictionary <string, string> saslProps = saslPropsResolver.GetClientProperties(addr
);
string userName = BuildUserName(accessToken);
char[] password = BuildClientPassword(accessToken);
CallbackHandler callbackHandler = new SaslDataTransferClient.SaslClientCallbackHandler
(userName, password);
return(DoSaslHandshake(underlyingOut, underlyingIn, userName, saslProps, callbackHandler
));
}
/// <summary>Sends client SASL negotiation for specialized encrypted handshake.</summary>
/// <param name="underlyingOut">connection output stream</param>
/// <param name="underlyingIn">connection input stream</param>
/// <param name="encryptionKey">for an encrypted SASL handshake</param>
/// <returns>new pair of streams, wrapped after SASL negotiation</returns>
/// <exception cref="System.IO.IOException">for any error</exception>
private IOStreamPair GetEncryptedStreams(OutputStream underlyingOut, InputStream
underlyingIn, DataEncryptionKey encryptionKey)
{
IDictionary <string, string> saslProps = DataTransferSaslUtil.CreateSaslPropertiesForEncryption
(encryptionKey.encryptionAlgorithm);
Log.Debug("Client using encryption algorithm {}", encryptionKey.encryptionAlgorithm
);
string userName = GetUserNameFromEncryptionKey(encryptionKey);
char[] password = DataTransferSaslUtil.EncryptionKeyToPassword(encryptionKey.encryptionKey
);
CallbackHandler callbackHandler = new SaslDataTransferClient.SaslClientCallbackHandler
(userName, password);
return(DoSaslHandshake(underlyingOut, underlyingIn, userName, saslProps, callbackHandler
));
}