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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-4335) Apache Drill should support network encryption
Date Mon, 01 May 2017 19:48:05 GMT

    [ https://issues.apache.org/jira/browse/DRILL-4335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991393#comment-15991393
] 

ASF GitHub Bot commented on DRILL-4335:
---------------------------------------

Github user sohami commented on a diff in the pull request:

    https://github.com/apache/drill/pull/773#discussion_r113378601
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/security/ServerAuthenticationHandler.java
---
    @@ -251,25 +255,67 @@ 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();
    +
    +    // Check the negotiated property before sending the response back to client
    +    try {
    +      final String negotiatedQOP = saslServer.getNegotiatedProperty(Sasl.QOP).toString();
    +      final String expectedQOP = (connection.isEncryptionEnabled())
    +          ? SaslProperties.QualityOfProtection.PRIVACY.getSaslQop()
    +          : SaslProperties.QualityOfProtection.AUTHENTICATION.getSaslQop();
    +
    +      if (!(negotiatedQOP.equals(expectedQOP))) {
    +        throw new SaslException(String.format("Mismatch in negotiated QOP value: %s and
Expected QOP value: %s",
    +            negotiatedQOP, expectedQOP));
    +      }
    +
    +      // Update the rawWrapSendSize with the negotiated rawSendSize since we cannot call
encode with more than the
    +      // negotiated size of buffer
    +      if (connection.isEncryptionEnabled()) {
    +        final int negotiatedRawSendSize = Integer.parseInt(
    +            saslServer.getNegotiatedProperty(Sasl.RAW_SEND_SIZE).toString());
    +        if (negotiatedRawSendSize <= 0) {
    +          throw new SaslException(String.format("Negotiated rawSendSize: %d is invalid.
Please check the configured " +
    +              "value of encryption.sasl.max_wrapped_size. It might be configured to a
very small value.",
    +              negotiatedRawSendSize));
    +        }
    +        connection.setWrapSizeLimit(negotiatedRawSendSize);
    --- End diff --
    
    Good catch!. Previous logic of having a new EncryptionContext object with each connection
was taking care of it. Didn't realized this while making the change. Will have a separate
EncryptionContext object for each connection and initialize it with the passed object in constructor.


> Apache Drill should support network encryption
> ----------------------------------------------
>
>                 Key: DRILL-4335
>                 URL: https://issues.apache.org/jira/browse/DRILL-4335
>             Project: Apache Drill
>          Issue Type: New Feature
>            Reporter: Keys Botzum
>            Assignee: Sorabh Hamirwasia
>              Labels: security
>         Attachments: ApacheDrillEncryptionUsingSASLDesign.pdf
>
>
> This is clearly related to Drill-291 but wanted to make explicit that this needs to include
network level encryption and not just authentication. This is particularly important for the
client connection to Drill which will often be sending passwords in the clear until there
is encryption.



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