The IBM-supplied DSECT ISTFM5 enables you to refer to
the fields in the FMH-5 symbolically. ISTFM5 also contains several
other DSECTs that map storage in optional subfields that can be part
of the FMH-5. (For an assembler listing of the ISTFM5 DSECT, refer
to z/OS Communications Server: SNA Programmer's
LU 6.2 Reference.)
The additional FMH-5 DSECTs and the subfields they map
are:
- FM5ASI
- Access security subfields.
Each of these subfields, in turn, is mapped by the DSECT FM5ACCSE.
- FM5LUOW1
- Logical unit of work identifier
field.
- FM5LUOW2
- Actual logical unit of work
field.
- FM5CVCOR
- Conversation correlator.
- FM5ACCSE
- Individual access security
subfields.
- FM5PIPFM
- PIP format.
- FM5PIPSM
- Actual PIP subfield.