[OpenAFS] openafs-1.4.2 RHEL RPM package installs nonempty SuidCells and mangles CellServDB

[Jeffrey Altman]

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Berthold Cogel wrote:
> Derrick J Brashear schrieb:
>>
>> If we can get a vgaue consensus on what it is that should be sourced,
>> I'd love to accept and integrate such a contribution... as long as
>> people who don't have something set still get their DB updated. Having
>> one set of packages everyone can use, and no one needing to build, is
>> high on the list of things the project has tried to do.
>>
> 
> Perhaps it is possible to include a script in openafs with a mechanism
> that allows the user to update his CellServDB. It should be called by
> the init script. This mechanism could be triggered also by local update
> methods (cfengine) or manualy.
> 
> What I would like to have is a something like this:
> 
> - A CellServDB.dist from openafs.org. Provided during installation and
>   perhaps updated by cronjobs via ftp or http.
> - A CellServDB.local which I can maintain myself, perhaps with local,
>   nonpublic cells.
> - A CellServDB.blacklist to exclude 'broken' cells (perhaps not up2date
>   in CellServDB.dist) or cells I don't want to be seen by my users on
>   all or some special clients.
> 
> These files can be processed by the update mechanism to form a new
> CellServDB. 

Why even bother forming a new CellServDB at all?

The client's could simply contain the code which handles searching for
cell information from multiple sources.   CellServDB should be the
equivalent of .local.  CellServDB.public is the version shipped with
OpenAFS.  I think I would call CellServDB.blacklist CellServDB.force.afsdb.

Algorithm to find cell information:

(1) search CellServDB.

(2) search CellServDB.force.afsdb.
    if found and DNS AFSDB support is active,
    then query DNS AFSDB record for cell

(3) if cell not listed in CellServDB.force.afsdb,
    search CellServDB.public

(4) if DNS AFSDB support is active and a DNS AFSDB
    query has not been issued, then query DNS AFSDB
    record

Jeffrey Altman






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