Re: [PATCH 5/7] SELinux: Handle opening of a unioned file

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Stephen Smalley <sds@xxxxxxxxxxxxx> wrote:

> Almost want to be able to compute a transition label for the ecryptfs
> inodes from the lower inode label so that it can be derived from but
> potentially different from the lower inode label.  That way policy could
> maintain per-file distinctions within an ecryptfs mount and distinguish
> between access to the encrypted vs plaintext representations.

Yeah.  What we want is something like:

  lower-inode-label + proposed-upper-label + subject-label -> inode-label

By proposed-upper-label I mean the default label for a new inode at that the
point in the directory tree at which the copy up will take place.

David
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