/ lib / krb5 / convert_creds.c
convert_creds.c
 1  /*
 2   * Copyright (c) 1997 - 2004 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  #include "krb5-v4compat.h"
36  
37  #ifndef HEIMDAL_SMALLER
38  
39  /**
40   * Convert the v5 credentials in in_cred to v4-dito in v4creds.  This
41   * is done by sending them to the 524 function in the KDC.  If
42   * `in_cred' doesn't contain a DES session key, then a new one is
43   * gotten from the KDC and stored in the cred cache `ccache'.
44   *
45   * @param context Kerberos 5 context.
46   * @param in_cred the credential to convert
47   * @param v4creds the converted credential
48   *
49   * @return Returns 0 to indicate success. Otherwise an kerberos et
50   * error code is returned, see krb5_get_error_message().
51   *
52   * @ingroup krb5_v4compat
53   */
54  
55  KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
56  krb524_convert_creds_kdc(krb5_context context,
57  			 krb5_creds *in_cred,
58  			 struct credentials *v4creds)
59      KRB5_DEPRECATED_FUNCTION("Use X instead")
60  {
61      memset(v4creds, 0, sizeof(*v4creds));
62      krb5_set_error_message(context, EINVAL,
63  			   N_("krb524_convert_creds_kdc not supported", ""));
64      return EINVAL;
65  }
66  
67  /**
68   * Convert the v5 credentials in in_cred to v4-dito in v4creds,
69   * check the credential cache ccache before checking with the KDC.
70   *
71   * @param context Kerberos 5 context.
72   * @param ccache credential cache used to check for des-ticket.
73   * @param in_cred the credential to convert
74   * @param v4creds the converted credential
75   *
76   * @return Returns 0 to indicate success. Otherwise an kerberos et
77   * error code is returned, see krb5_get_error_message().
78   *
79   * @ingroup krb5_v4compat
80   */
81  
82  KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
83  krb524_convert_creds_kdc_ccache(krb5_context context,
84  				krb5_ccache ccache,
85  				krb5_creds *in_cred,
86  				struct credentials *v4creds)
87      KRB5_DEPRECATED_FUNCTION("Use X instead")
88  {
89      memset(v4creds, 0, sizeof(*v4creds));
90      krb5_set_error_message(context, EINVAL,
91  			   N_("krb524_convert_creds_kdc_ccache not supported", ""));
92      return EINVAL;
93  }
94  
95  #endif