1/*
2 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
3 * Use is subject to license terms.
4 */
5
6
7/*
8 * lib/krb5/krb/mk_req.c
9 *
10 * Copyright 1990,1991 by the Massachusetts Institute of Technology.
11 * All Rights Reserved.
12 *
13 * Export of this software from the United States of America may
14 *   require a specific license from the United States Government.
15 *   It is the responsibility of any person or organization contemplating
16 *   export to obtain such a license before exporting.
17 *
18 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
19 * distribute this software and its documentation for any purpose and
20 * without fee is hereby granted, provided that the above copyright
21 * notice appear in all copies and that both that copyright notice and
22 * this permission notice appear in supporting documentation, and that
23 * the name of M.I.T. not be used in advertising or publicity pertaining
24 * to distribution of the software without specific, written prior
25 * permission.  Furthermore if you modify this software you must label
26 * your software as modified software and not distribute it in such a
27 * fashion that it might be confused with the original M.I.T. software.
28 * M.I.T. makes no representations about the suitability of
29 * this software for any purpose.  It is provided "as is" without express
30 * or implied warranty.
31 *
32 *
33 * krb5_mk_req() routine.
34 */
35
36#include "k5-int.h"
37#include "auth_con.h"
38
39/*
40 Formats a KRB_AP_REQ message into outbuf.
41
42 server specifies the principal of the server to receive the message; if
43 credentials are not present in the credentials cache for this server, the
44 TGS request with default parameters is used in an attempt to obtain
45 such credentials, and they are stored in ccache.
46
47 kdc_options specifies the options requested for the
48 ap_req_options specifies the KRB_AP_REQ options desired.
49
50 checksum specifies the checksum to be used in the authenticator.
51
52 The outbuf buffer storage is allocated, and should be freed by the
53 caller when finished.
54
55 returns system errors
56*/
57
58krb5_error_code KRB5_CALLCONV
59krb5_mk_req(krb5_context context, krb5_auth_context *auth_context,
60	    krb5_flags ap_req_options, char *service, char *hostname,
61	    krb5_data *in_data, krb5_ccache ccache, krb5_data *outbuf)
62{
63    krb5_error_code 	  retval;
64    krb5_principal	  server;
65    krb5_creds 		* credsp;
66    krb5_creds 		  creds;
67
68    retval = krb5_sname_to_principal(context, hostname, service,
69				     KRB5_NT_SRV_HST, &server);
70    if (retval)
71      return retval;
72
73    /* obtain ticket & session key */
74    memset((char *)&creds, 0, sizeof(creds));
75    if ((retval = krb5_copy_principal(context, server, &creds.server)))
76	goto cleanup_princ;
77
78    /* Solaris Kerberos */
79    if ((retval = krb5_cc_get_principal(context, ccache, &creds.client)) != 0)
80	goto cleanup_creds;
81
82    /* Solaris Kerberos */
83    if ((retval = krb5_get_credentials(context, 0,
84				       ccache, &creds, &credsp)) != 0)
85	goto cleanup_creds;
86
87    retval = krb5_mk_req_extended(context, auth_context, ap_req_options,
88				  in_data, credsp, outbuf);
89
90    krb5_free_creds(context, credsp);
91
92cleanup_creds:
93    krb5_free_cred_contents(context, &creds);
94
95cleanup_princ:
96    krb5_free_principal(context, server);
97
98    return retval;
99}
100