Re: [PATCH 5/8] SELinux: Stub in copy-up handling

[David Howells]

Stephen Smalley <sds@xxxxxxxxxxxxx> wrote:

> I'm not sure we never want to copy up the SELinux attribute.  See my
> other email about ecryptfs and supporting per-file labeling and
> consistent access control over the upper and lower inodes.

Yes.  That's why there are two operations. inode_copy_up() should set the
label appropriately and inode_copy_up_xattr() should prevent the label set by
inode_copy_up() from being clobbered.

Note that inode_copy_up() has access to the lower file label and can perform
some sort of incantation to transmute it before applying it.

David
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