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https://issues.apache.org/jira/browse/HBASE-6104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13854714#comment-13854714
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Gary Helmling edited comment on HBASE-6104 at 12/21/13 12:58 AM:
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Sorry my example wasn't very clear. I meant the "\*" to represent the
username, so effectively doing a default allow to all users. Don't think we
support this yet? Certain combinations would still be problematic -- if I
grant to "\*" users, then try to revoke for a single user is that allowed or
does it error out?
was (Author: ghelmling):
Sorry my example wasn't very clear. I meant the "*" to represent the username,
so effectively doing a default allow to all users. Don't think we support this
yet? Certain combinations would still be problematic -- if I grant to "*"
users, then try to revoke for a single user is that allowed or does it error
out?
> Require EXEC permission to call coprocessor endpoints
> -----------------------------------------------------
>
> Key: HBASE-6104
> URL: https://issues.apache.org/jira/browse/HBASE-6104
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors, security
> Affects Versions: 0.95.2
> Reporter: Gary Helmling
> Assignee: Andrew Purtell
> Fix For: 0.98.0
>
> Attachments: 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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