1 /* $NetBSD: build_ap_req.c,v 1.1.1.1 2011/04/13 18:15:31 elric Exp $ */
2
3 /*
4 * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "krb5_locl.h"
37
38 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_build_ap_req(krb5_context context,krb5_enctype enctype,krb5_creds * cred,krb5_flags ap_options,krb5_data authenticator,krb5_data * retdata)39 krb5_build_ap_req (krb5_context context,
40 krb5_enctype enctype,
41 krb5_creds *cred,
42 krb5_flags ap_options,
43 krb5_data authenticator,
44 krb5_data *retdata)
45 {
46 krb5_error_code ret = 0;
47 AP_REQ ap;
48 Ticket t;
49 size_t len;
50
51 ap.pvno = 5;
52 ap.msg_type = krb_ap_req;
53 memset(&ap.ap_options, 0, sizeof(ap.ap_options));
54 ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0;
55 ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0;
56
57 ap.ticket.tkt_vno = 5;
58 copy_Realm(&cred->server->realm, &ap.ticket.realm);
59 copy_PrincipalName(&cred->server->name, &ap.ticket.sname);
60
61 decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
62 copy_EncryptedData(&t.enc_part, &ap.ticket.enc_part);
63 free_Ticket(&t);
64
65 ap.authenticator.etype = enctype;
66 ap.authenticator.kvno = NULL;
67 ap.authenticator.cipher = authenticator;
68
69 ASN1_MALLOC_ENCODE(AP_REQ, retdata->data, retdata->length,
70 &ap, &len, ret);
71 if(ret == 0 && retdata->length != len)
72 krb5_abortx(context, "internal error in ASN.1 encoder");
73 free_AP_REQ(&ap);
74 return ret;
75
76 }
77