Specific Control Options › RDT2BYTE—(Obsolete)

RDT2BYTE—(Obsolete)

RDT2BYTE allows the administrator to ADD 2‑byte RESCODE values to RDT resource classes. Although CA Top Secret 5.2 allows clients the ability to create such resource classes, caution must be exercised if the Security File is to be shared with a CA Top Secret 5.1 system.

All entry methods are accepted.

This control option has the following format:

RDT2BYTE

CA Top Secret 5.2 introduced 256 additional resource classes, which are represented internally with 2‑byte RESCODEs. These resource classes are incompatible with lower‑level releases, which only allow 1‑byte RESCODEs. The control option RDT2BYTE must be set before a 2‑byte RESCODE can be added to the RDT.

Once a resource class has been added to the RDT with a 2‑byte RESCODE, irrevocable changes are made to the Security File.

In this case, we say that the RDT2BYTE control option has been activated. CA Top Secret r5.2 will initialize with the message

TSS9053I ‑ RDT2BYTE OPTION ACTIVATED

Once RDT2BYTE is activated, any CA Top Secret 5.1 system attempting to initialize with such a Security File will terminate with the message

TSS9996E ‑ Security File contains 2‑byte RESCODEs and cannot be used by this release

If an CA Top Secret 5.1 system shares a Security File with a CA Top Secret 5.2 system, and the latter defines a 2‑byte RESCODE resource class to the RDT, results can be unpredictable, and may compromise Security File integrity. When the 5.1 system is shut down, it will no longer be able to initialize with the same security file.

Unlike other control options, once RDT2BYTE has been activated, it cannot be modified by altering the Parameter File or executing a MODIFY command. RDT2BYTE should not be activated in any system until all systems sharing the Security File are running with CA Top Secret r5.2.

When listing an RDT reclass the RESCODE will display as RESOURCE CODE = X'nnn'. User written programs that run against the output from the LIST command will need to be reviewed to allow for this change. In particular, the output layout for the TSSCFILE utility has been changed to accommodate the rescode field, which has increased from a 2-byte field to a 3-byte field.