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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17860) Implement secure native client connection
Date Tue, 04 Apr 2017 22:44:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15955999#comment-15955999
] 

Ted Yu commented on HBASE-17860:
--------------------------------

[~eclark] was asking why not casting the callback methods.
I answered on RB but the compilation errors are not properly formatted.

However, the assignment of callback functions triggers the following compilation errors:
{code}
connection/connection-factory.cc:164:22: error: reinterpret_cast from 'int (SaslHandler::*)(void
*, int, const char *)' to 'sasl_callback_ft' (aka 'int (*)()') is not allowed
    callback->proc = reinterpret_cast<sasl_callback_ft> (&SaslHandler::SaslLogFn);
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
connection/connection-factory.cc:169:22: error: cannot cast from type 'int (SaslHandler::*)(void
*, const char **)' to pointer type 'sasl_callback_ft' (aka 'int (*)()')
    callback->proc = (sasl_callback_ft) &SaslHandler::GetPluginPath;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
connection/connection-factory.cc:175:22: error: cannot cast from type 'int (SaslHandler::*)(void
*, int, const char **, unsigned int *)' to pointer type 'sasl_callback_ft' (aka 'int (*)()')
    callback->proc = (sasl_callback_ft) &SaslHandler::Simple;
{code}

> Implement secure native client connection
> -----------------------------------------
>
>                 Key: HBASE-17860
>                 URL: https://issues.apache.org/jira/browse/HBASE-17860
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Critical
>         Attachments: 17860.v2.txt, 17860.v3.txt, 17860.v4.txt
>
>
> So far, the native client communicates with insecure cluster.
> This JIRA is to add secure connection support for native client using Cyrus library.
> The work is based on earlier implementation and is redone via wangle and folly frameworks.
> Thanks to [~devaraj] who started the initiative.
> Here is high level description of the design:
> * SaslHandler is declared as:
> {code}
> class SaslHandler
>     : public wangle::HandlerAdapter<folly::IOBufQueue&, std::unique_ptr<folly::IOBuf>>{
> {code}
> It would be inserted between EventBaseHandler and LengthFieldBasedFrameDecoder in the
pipeline (via ConnectionFactory::Connect())
> * SaslHandler would intercept writes to server by buffering the IOBuf's and start the
handshake process (via sasl_client_XX calls provided by Cyrus)
> * after handshake is complete, SaslHandler would send the buffered IOBuf's to server
and act as pass-thru from then on



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