The reason code specifies the result of the callable service
that is returned to the application program. Each return code has
different reason codes assigned to it that indicate specific processing
problems. Appendix A. ICSF and TSS Return and Reason Codes lists the reason codes.
exit_data_length
Direction: Input/Output
Type: Integer
The length of the data that is passed to the installation
exit. The length can be from X'00000000' to X'7FFFFFFF' (2
gigabytes). The data is identified in the exit_data parameter.
exit_data
Direction: Input/Output
Type: String
The data that is passed to the installation exit.
key_label
Direction: Input
Type: Character string
The 64-byte label of a record in the CKDS that is the target
of this service. The created record contains a key token set to binary
zeros and has a key type of NULL.