Re: [RFC PATCH v1 1/3] lsm: introduce hooks for kdbus

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On Thursday, September 24, 2015 02:01:33 PM Stephen Smalley wrote:
> If we want the same for MAC, I guess we either need kdbus_node to hold a
> ref to a cred (and then we can pass ep->node->cred to the hooks), or
> just add our own security field to kdbus_node.  The former seems cleaner
> to me; we can then just take an additional reference to the bus or
> endpoint creator's cred at creation time.

Agreed.

> And then we need kdbusfs to call a new hook on the inode and the cred in
> order to set the inode->i_security to something appropriate for the bus or
> endpoint creator.  Otherwise, we don't get any control over the ability to
> open any given endpoint or bus in kdbusfs, as that is only subject to the
> inode permission checks.

I'll work on something and send out an updated patchset.

-- 
paul moore
security @ redhat

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