James Morris wrote:
On Wed, 15 Nov 2006, David Howells wrote:
James Morris <[email protected]> wrote:
The ability to set this needs to be mediated via MAC policy.
Something like this, you mean?
Yes, although perhaps writing to tsec->kern_create_sid or similar, which
then overrides tsec->create_sid if set. Also need
/proc/pid/attr/kern_fscreate as a read only node.
+ error = task_has_perm(current, current, PROCESS__SETFSCREATE);
I wonder if we also need 'relabelto' and 'relabelfrom' permissions, to
control which labels are being used.
No - assuming the existing checks are called, the controls on
file/dir/etc creation should be sufficient to control which labels are
used. Setting fscreate is not a relabel operation nor does it result in
a relabel operation as the sid is only used for creation.
Karl
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