Github user sudheeshkatkam commented on a diff in the pull request: https://github.com/apache/drill/pull/773#discussion_r109963000 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/security/ServerAuthenticationHandler.java --- @@ -251,25 +256,62 @@ void process(SaslResponseContext<S, T> context) throws Exception { private static <S extends ServerConnection<S>, T extends EnumLite> void handleSuccess(final SaslResponseContext<S, T> context, final SaslMessage.Builder challenge, final SaslServer saslServer) throws IOException { - context.connection.changeHandlerTo(context.requestHandler); - context.connection.finalizeSaslSession(); - context.sender.send(new Response(context.saslResponseType, challenge.build())); - // setup security layers here.. + final S connection = context.connection; + connection.changeHandlerTo(context.requestHandler); + connection.finalizeSaslSession(); + context.sender.send(new Response(context.saslResponseType, challenge.build())); if (logger.isTraceEnabled()) { - logger.trace("Authenticated {} successfully using {} from {}", saslServer.getAuthorizationID(), - saslServer.getMechanismName(), context.remoteAddress); + logger.trace("Authenticated {} successfully using {} from {} with encryption context {}", + saslServer.getAuthorizationID(), saslServer.getMechanismName(), connection.getRemoteAddress().toString(), + connection.getEncryptionString()); + } + + if (connection.isEncrypted()) { + try { + // Check if connection was marked for being secure then verify for negotiated QOP value for correctness. + final String negotiatedQOP = saslServer.getNegotiatedProperty(Sasl.QOP).toString(); + assert (negotiatedQOP.equals(SaslProperties.QualityOfProtection.PRIVACY.getSaslQop())); + + // Update the rawWrapSendSize with the negotiated rawSendSize since we cannot call encode with more than the + // negotiated size of buffer + final int negotiatedRawSendSize = Integer.parseInt(saslServer + .getNegotiatedProperty(SaslProperties.WRAP_RAW_SEND_SIZE) + .toString()); + if(negotiatedRawSendSize <= 0) { + throw new SaslException(String.format("Negotiated rawSendSize: %d is invalid. Please check the configured " + + "value of sasl.encryption.encodesize. It might be configured to a very small value.", + negotiatedRawSendSize)); + } + connection.setRawWrapSendSize(negotiatedRawSendSize); + connection.addSecurityHandlers(); + } catch (IllegalStateException | NumberFormatException e) { + throw new SaslException(String.format("Unexpected failure while retrieving negotiated property values (%s)", --- End diff -- This method does not follow [this contract](https://github.com/apache/drill/blob/master/exec/rpc/src/main/java/org/apache/drill/exec/rpc/RequestHandler.java#L34). Somehow the order of `context.sender.send(...)` and exceptions thrown (here and below) needs to be fixed.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---