Module CTMSE02

The CTMSE02 module is the security module of Exit CTMX002. It verifies that the owner of a job is allowed to read the JCL library specified in the job definition, and enforces the USER parameter to match the specification made on the job order.

To reduce the amount of resources required for verifying the owner against the security system, the CTMSE02 module can use the internal cache for keeping results of the security requests. These results are refreshed according to the time specified by the LIFETIME parameter. Verification against the security system is performed only for those requests that are not found in cache or if the information in cache has expired. The entire cache is refreshed after NEWDAY process and according to the modify command for refreshing Control-M parameters.