Re: [RFC PATCH v8 10/18] SELinux: Add a network node caching mechanism similar to the sel_netif_*() functions

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On Mon, 2007-12-17 at 15:56 -0500, Paul Moore wrote:
> On Monday 17 December 2007 3:35:28 pm Stephen Smalley wrote:
> > On Fri, 2007-12-14 at 16:50 -0500, Paul Moore wrote:
> > > This patch adds a SELinux IP address/node SID caching mechanism similar
> > > to the sel_netif_*() functions.  The node SID queries in the SELinux
> > > hooks files are also modified to take advantage of this new
> > > functionality.  In addition, remove the address length information from
> > > the sk_buff parsing routines as it is redundant since we already have the
> > > address family.
> >
> > This is very nice - we also need the same kind of cache for port SIDs.
> 
> Thanks.  Any problem if we wait until 2.6.26 for a port SID cache?  It 
> shouldn't be any worse than it is now (the new code is not concerned with 
> ports) and the current patchset is already large enough that it keeps me up 
> at night thinking about all the places it could go wrong ...

Yes, that's fine - just a note to file away for the future.  We'll still
want the cache eventually though since the name_bind and name_connect
checks are based on the port SIDs and will remain even when the compat
checks are obsoleted.

-- 
Stephen Smalley
National Security Agency


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