build_ap_req.c revision 55682
155682Smarkm/* 255682Smarkm * Copyright (c) 1997 - 1999 Kungliga Tekniska H�gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 555682Smarkm * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 955682Smarkm * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 1255682Smarkm * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 1655682Smarkm * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 2055682Smarkm * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#include <krb5_locl.h> 3555682Smarkm 3655682SmarkmRCSID("$Id: build_ap_req.c,v 1.16 1999/12/02 17:05:07 joda Exp $"); 3755682Smarkm 3855682Smarkmkrb5_error_code 3955682Smarkmkrb5_build_ap_req (krb5_context context, 4055682Smarkm krb5_enctype enctype, 4155682Smarkm krb5_creds *cred, 4255682Smarkm krb5_flags ap_options, 4355682Smarkm krb5_data authenticator, 4455682Smarkm krb5_data *retdata) 4555682Smarkm{ 4655682Smarkm krb5_error_code ret = 0; 4755682Smarkm AP_REQ ap; 4855682Smarkm Ticket t; 4955682Smarkm size_t len; 5055682Smarkm 5155682Smarkm ap.pvno = 5; 5255682Smarkm ap.msg_type = krb_ap_req; 5355682Smarkm memset(&ap.ap_options, 0, sizeof(ap.ap_options)); 5455682Smarkm ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0; 5555682Smarkm ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0; 5655682Smarkm 5755682Smarkm ap.ticket.tkt_vno = 5; 5855682Smarkm copy_Realm(&cred->server->realm, &ap.ticket.realm); 5955682Smarkm copy_PrincipalName(&cred->server->name, &ap.ticket.sname); 6055682Smarkm 6155682Smarkm decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len); 6255682Smarkm copy_EncryptedData(&t.enc_part, &ap.ticket.enc_part); 6355682Smarkm free_Ticket(&t); 6455682Smarkm 6555682Smarkm ap.authenticator.etype = enctype; 6655682Smarkm ap.authenticator.kvno = NULL; 6755682Smarkm ap.authenticator.cipher = authenticator; 6855682Smarkm 6955682Smarkm retdata->length = length_AP_REQ(&ap); 7055682Smarkm retdata->data = malloc(retdata->length); 7155682Smarkm if(retdata->data == NULL) 7255682Smarkm ret = ENOMEM; 7355682Smarkm else 7455682Smarkm encode_AP_REQ((unsigned char *)retdata->data + retdata->length - 1, 7555682Smarkm retdata->length, &ap, &len); 7655682Smarkm free_AP_REQ(&ap); 7755682Smarkm 7855682Smarkm return ret; 7955682Smarkm} 80