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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6104) Require EXEC permission to call coprocessor endpoints
Date Fri, 27 Dec 2013 19:11:50 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13857648#comment-13857648
] 

Andrew Purtell commented on HBASE-6104:
---------------------------------------

If TestAccessController is green after HBASE-10239 for a few trunk builds, my plan is to try
committing this change again, but only to trunk.

> Require EXEC permission to call coprocessor endpoints
> -----------------------------------------------------
>
>                 Key: HBASE-6104
>                 URL: https://issues.apache.org/jira/browse/HBASE-6104
>             Project: HBase
>          Issue Type: New Feature
>          Components: Coprocessors, security
>            Reporter: Gary Helmling
>            Assignee: Andrew Purtell
>             Fix For: 0.99.0
>
>         Attachments: 6104-addendum-1.patch, 6104-revert.patch, 6104.patch, 6104.patch,
6104.patch, 6104.patch, 6104.patch, 6104.patch
>
>
> The EXEC action currently exists as only a placeholder in access control.  It should
really be used to enforce access to coprocessor endpoint RPC calls, which are currently unrestricted.
> How the ACLs to support this would be modeled deserves some discussion:
> * Should access be scoped to a specific table and CoprocessorProtocol extension?
> * Should it be possible to grant access to a CoprocessorProtocol implementation globally
(regardless of table)?
> * Are per-method restrictions necessary?
> * Should we expose hooks available to endpoint implementors so that they could additionally
apply their own permission checks? Some CP endpoints may want to require READ permissions,
others may want to enforce WRITE, or READ + WRITE.
> To apply these kinds of checks we would also have to extend the RegionObserver interface
to provide hooks wrapping HRegion.exec().



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