krb5_mk_rep()--Create Kerberos AP_REP Message


  Syntax
 #include <krb5.h>

 krb5_error_code krb5_mk_rep(
     krb5_context       context,
     krb5_auth_context      auth_context,  
     krb5_data *      out_data);
  Service Program Name: QSYS/QKRBGSS

  Default Public Authority: *USE

  Threadsafe: Conditional. See Usage Notes.

The krb5_mk_rep() function creates a Kerberos AP_REP message using information in the authentication context. An AP_REP message is returned to the partner application after processing an AP_REQ message received from the partner application. The information in the authentication context is set by the krb5_rd_req() routine when it processes the AP_REQ message.


Authorities

No authorities are required.


Parameters

context  (Input)
The Kerberos context.

auth_context  (Input/Output)
The authentication context.

out_data  (Output)
The AP_REP message. The krb5_free_data_contents() routine should be called to release the storage pointed to by the data field of the krb5_data structure when it is no longer needed.

Return Value

If no errors occur, the return value is 0. Otherwise, a Kerberos error code is returned.


Error Messages

Message ID Error Message Text
CPE3418 E Possible APAR condition or hardware failure.


Usage Notes

  1. The Kerberos protocol runtime provides no concurrency control for the authentication context. If the application wants to use the same authentication context in multiple threads, it is the responsibility of the application to serialize access to the authentication context so that only a single thread is accessing the authentication context at any time. Because message sequence numbers are contained in the authentication context, this serialization needs to be extended to encompass the message exchange between the two applications. Otherwise, message sequence errors are liable to occur if the messages are delivered out of sequence.


API introduced: V5R1

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