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 36KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL 37krb5_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 krb5_error_code ret = 0; 45 AP_REQ ap; 46 size_t len; 47 48 ap.pvno = 5; 49 ap.msg_type = krb_ap_req; 50 51 ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0; 52 ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0; 53 54 ret = decode_Ticket(cred->ticket.data, cred->ticket.length, &ap.ticket, &len); 55 if (ret) { 56 krb5_data_zero(retdata); 57 return ret; 58 } 59 60 ap.authenticator.etype = enctype; 61 ap.authenticator.kvno = NULL; 62 ap.authenticator.cipher = authenticator; 63 64 ASN1_MALLOC_ENCODE(AP_REQ, retdata->data, retdata->length, 65 &ap, &len, ret); 66 if(ret == 0 && retdata->length != len) 67 krb5_abortx(context, "internal error in ASN.1 encoder"); 68 else if (ret) 69 krb5_data_zero(retdata); 70 71 free_AP_REQ(&ap); 72 return ret; 73} 74