Layout the signing of OSD's CDB and all-data security modes. The actual
code for signing the data and CDB is missing, but the code flow and the extra
buffer segments are all in place.
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Reviewed-by: NBenny Halevy <bhalevy@panasas.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>