Re: fsetxattr() fails on a writable descriptor? (original) (raw)

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On Tue, Sep 08, 2009 at 12:29:49PM +0100, P??draig Brady wrote:

fsetxattr() is failing for me when the permissions are readonly but the descriptor is writable as demonstrated by the program below. I've tried this on ext3 and ext4 with libattr-2.4.43-3.fc11.i586 and linux-2.6.30.5-43.fc11.i586

That's not XFS specifci behaviour. For all xattr operations, fd-based or not we always do the full permission checks, and have done so since day one. Check the routined xattr_permission in fs/xattr.c of the kernel tree. It seems a bit unusual, but I'm not sure changing it now is a good idea - the xattr support has been around for a long time.

• Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, (continued)
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Pádraig Brady, 2009/09/07
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Ondřej Vašík, 2009/09/14
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Pádraig Brady, 2009/09/14
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Jim Meyering, 2009/09/14
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Ondřej Vašík, 2009/09/15
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Jim Meyering, 2009/09/15
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Ondřej Vašík, 2009/09/15
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Jim Meyering, 2009/09/15
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Pádraig Brady, 2009/09/15
  * fsetxattr() fails on a writable descriptor?, Pádraig Brady, 2009/09/08
  * Re: fsetxattr() fails on a writable descriptor?,Christoph Hellwig <=
  * Re: fsetxattr() fails on a writable descriptor?, Pádraig Brady, 2009/09/09
  * Re: [PATCH] cp, mv: do preserve extended attributes even for read-only source files, Jim Meyering, 2009/09/07

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