source/heimdal/lib/krb5/mk_req.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
  36 RCSID("$Id: mk_req.c,v 1.26 2004/05/25 21:34:11 lha Exp $");
  37
  38 krb5_error_code KRB5_LIB_FUNCTION
  39 krb5_mk_req_exact(krb5_context context,
  40                   krb5_auth_context *auth_context,
  41                   const krb5_flags ap_req_options,
  42                   const krb5_principal server,
  43                   krb5_data *in_data,
  44                   krb5_ccache ccache,
  45                   krb5_data *outbuf)
  46 {
  47     krb5_error_code ret;
  48     krb5_creds this_cred, *cred;
  49
  50     memset(&this_cred, 0, sizeof(this_cred));
  51
  52     ret = krb5_cc_get_principal(context, ccache, &this_cred.client);
  53
  54     if(ret)
  55         return ret;
  56
  57     ret = krb5_copy_principal (context, server, &this_cred.server);
  58     if (ret) {
  59         krb5_free_cred_contents (context, &this_cred);
  60         return ret;
  61     }
  62
  63     this_cred.times.endtime = 0;
  64     if (auth_context && *auth_context && (*auth_context)->keytype)
  65         this_cred.session.keytype = (*auth_context)->keytype;
  66
  67     /* This is the network contact with the KDC */
  68     ret = krb5_get_credentials (context, 0, ccache, &this_cred, &cred);
  69
  70     krb5_free_cred_contents(context, &this_cred);
  71     if (ret)
  72         return ret;
  73
  74     ret = krb5_mk_req_extended (context,
  75                                 auth_context,
  76                                 ap_req_options,
  77                                 in_data,
  78                                 cred,
  79                                 outbuf);
  80     krb5_free_creds(context, cred);
  81     return ret;
  82 }
  83
  84 krb5_error_code KRB5_LIB_FUNCTION
  85 krb5_mk_req(krb5_context context,
  86             krb5_auth_context *auth_context,
  87             const krb5_flags ap_req_options,
  88             const char *service,
  89             const char *hostname,
  90             krb5_data *in_data,
  91             krb5_ccache ccache,
  92             krb5_data *outbuf)
  93 {
  94     krb5_error_code ret;
  95     char **realms;
  96     char *real_hostname;
  97     krb5_principal server;
  98
  99     ret = krb5_expand_hostname_realms (context, hostname,
 100                                        &real_hostname, &realms);
 101     if (ret)
 102         return ret;
 103
 104     ret = krb5_build_principal (context, &server,
 105                                 strlen(*realms),
 106                                 *realms,
 107                                 service,
 108                                 real_hostname,
 109                                 NULL);
 110     free (real_hostname);
 111     krb5_free_host_realm (context, realms);
 112     if (ret)
 113         return ret;
 114     ret = krb5_mk_req_exact (context, auth_context, ap_req_options,
 115                              server, in_data, ccache, outbuf);
 116     krb5_free_principal (context, server);
 117     return ret;
 118 }