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 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 krb5_error_code ret = 0; 45 AP_REQ ap; 46 Ticket t; 47 size_t len; 48 49 ap.pvno = 5; 50 ap.msg_type = krb_ap_req; 51 memset(&ap.ap_options, 0, sizeof(ap.ap_options)); 52 ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0; 53 ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0; 54 55 ap.ticket.tkt_vno = 5; 56 copy_Realm(&cred->server->realm, &ap.ticket.realm); 57 copy_PrincipalName(&cred->server->name, &ap.ticket.sname); 58 59 decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len); 60 copy_EncryptedData(&t.enc_part, &ap.ticket.enc_part); 61 free_Ticket(&t); 62 63 ap.authenticator.etype = enctype; 64 ap.authenticator.kvno = NULL; 65 ap.authenticator.cipher = authenticator; 66 67 ASN1_MALLOC_ENCODE(AP_REQ, retdata->data, retdata->length, 68 &ap, &len, ret); 69 if(ret == 0 && retdata->length != len) 70 krb5_abortx(context, "internal error in ASN.1 encoder"); 71 free_AP_REQ(&ap); 72 return ret; 73 74 } 75