Re: [Openxdsm-devel] Re: [PROPOSAL] Extended attributes for Posix security extensions

[Stephen C. Tweedie]

Hi,

On Wed, Oct 25, 2000 at 09:39:05AM -0700, Hans Reiser wrote:

> > It is certainly _possible_ to allow ACLs to change on rename/link, but
> > POSIX ACLs don't do that.  Other filesystems may well do.
> > 
> Suppose /a is permissions 700 and /b is 777, and you rename /a/foo to /b/foo, you 
>have then changed
> the permissions required for accessing the file.  Permissions ARE path traversal 
>dependent in Unix. 
> Inheritance of them should be also.

OK, we're agreeing on functionality and just using different
terminology: the rename above doesn't change any properties of the
file in question, but does affect the permissions on the full
pathname.  The two are quite distinct in Unix.

--Stephen
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