On 1/16/23 09:55, Ted Toth wrote:


On Sun, Jan 15, 2023 at 1:11 PM Joe Conway <m...@joeconway.com <mailto:m...@joeconway.com>> wrote:

    On 11/21/22 17:35, Joe Conway wrote:
     > On 11/21/22 15:57, Ted Toth wrote:
     >> In SELinux file context files you can specify <<none>> for a file
     >> meaning you don't want restorecon to relabel it. <<none>> is
     >> especially useful in an SELinux MLS environment when objects are
     >> created at a specific security level and you don't want
    restorecon to
     >> relabel them to the wrong security level.
     >
     > +1
     >
     > Please add to the next commitfest here:
     > https://commitfest.postgresql.org/41/
    <https://commitfest.postgresql.org/41/>


    Comments:

    1. It seems like the check for a "<<none>>" context should go into
    sepgsql_object_relabel() directly rather than exec_object_restorecon().
    The former gets registered as a hook in _PG_init(), so the with the
    current location we would fail to skip the relabel when that gets
    called.


The intent is not to stop all relabeling only to stop sepgsql_restorecon from doing a bulk relabel. I believe sepgsql_object_relabel is called by the 'SECURITY LABEL'  statement which I'm using to set the label of db objects to a specific context which I would not want altered later by a restorecon.


Ok, sounds reasonable. Maybe just add a comment to that effect.

--
Joe Conway
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com



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