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/*
* lib/krb5/krb/decode_kdc.c
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb5_decode_kdc_rep() function.
*/
#include "k5-int.h"
/*
Takes a KDC_REP message and decrypts encrypted part using etype and
*key, putting result in *rep.
dec_rep->client,ticket,session,last_req,server,caddrs
are all set to allocated storage which should be freed by the caller
when finished with the response.
If the response isn't a KDC_REP (tgs or as), it returns an error from
the decoding routines.
returns errors from encryption routines, system errors
*/
krb5_error_code INTERFACE
krb5_decode_kdc_rep(context, enc_rep, key, etype, dec_rep)
krb5_context context;
krb5_data * enc_rep;
const krb5_keyblock * key;
const krb5_enctype etype;
krb5_kdc_rep ** dec_rep;
{
krb5_error_code retval;
krb5_kdc_rep *local_dec_rep;
if (krb5_is_as_rep(enc_rep))
retval = decode_krb5_as_rep(enc_rep, &local_dec_rep);
else if (krb5_is_tgs_rep(enc_rep))
retval = decode_krb5_tgs_rep(enc_rep, &local_dec_rep);
else
return KRB5KRB_AP_ERR_MSG_TYPE;
if (retval)
return retval;
if (local_dec_rep->enc_part.etype != etype) {
krb5_free_kdc_rep(context, local_dec_rep);
return KRB5_WRONG_ETYPE;
}
retval = krb5_kdc_rep_decrypt_proc(context, key, 0, local_dec_rep);
if (retval) {
krb5_free_kdc_rep(context, local_dec_rep);
return(retval);
}
*dec_rep = local_dec_rep;
return 0;
}
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