Line data    Source code

       1             : /*
       2             :  * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute nor the names of its contributors
      18             :  *    may be used to endorse or promote products derived from this software
      19             :  *    without specific prior written permission.
      20             :  *
      21             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      22             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      25             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31             :  * SUCH DAMAGE.
      32             :  */
      33             : 
      34             : #include "krb5_locl.h"
      35             : 
      36             : KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
      37       69943 : krb5_build_ap_req (krb5_context context,
      38             :                    krb5_enctype enctype,
      39             :                    krb5_creds *cred,
      40             :                    krb5_flags ap_options,
      41             :                    krb5_data authenticator,
      42             :                    krb5_data *retdata)
      43             : {
      44       69943 :   krb5_error_code ret = 0;
      45             :   AP_REQ ap;
      46             :   Ticket t;
      47             :   size_t len;
      48             : 
      49       69943 :   ap.pvno = 5;
      50       69943 :   ap.msg_type = krb_ap_req;
      51       69943 :   memset(&ap.ap_options, 0, sizeof(ap.ap_options));
      52       69943 :   ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0;
      53       69943 :   ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0;
      54             : 
      55       69943 :   ap.ticket.tkt_vno = 5;
      56       69943 :   copy_Realm(&cred->server->realm, &ap.ticket.realm);
      57       69943 :   copy_PrincipalName(&cred->server->name, &ap.ticket.sname);
      58             : 
      59       69943 :   decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
      60       69943 :   copy_EncryptedData(&t.enc_part, &ap.ticket.enc_part);
      61       69943 :   free_Ticket(&t);
      62             : 
      63       69943 :   ap.authenticator.etype = enctype;
      64       69943 :   ap.authenticator.kvno  = NULL;
      65       69943 :   ap.authenticator.cipher = authenticator;
      66             : 
      67       69943 :   ASN1_MALLOC_ENCODE(AP_REQ, retdata->data, retdata->length,
      68             :                      &ap, &len, ret);
      69       69943 :   if(ret == 0 && retdata->length != len)
      70           0 :       krb5_abortx(context, "internal error in ASN.1 encoder");
      71       69943 :   free_AP_REQ(&ap);
      72       69943 :   return ret;
      73             : 
      74             : }