Passthrough request processing is supported by Link3270 server adapters only. At run time, XML request processing for passthrough is initiated from the passthrough stub program (DFHMADPP).
DFHMAXMI parses the message header (DFHMAH) and the passthrough message header (DFHMAH2).
The passthrough XML converter program DFHMAXPI parses the inbound XML passthrough request message (the portion of the XML request message following the header structures, DFHMAH and DFHMAH2), converting the screen header, map header, and screen data from XML to the fixed format screen header, map header, and CICS® ADS structure.
DFHMAXPI references the Link3270 Repository file to create the ADS structure required by the Link3270 bridge mechanism. An XML message format is published to which the service requestor must conform in order to create valid XML request message for Passthrough.
This information is used for XML response processing.