crypto/dist/heimdal/lib/krb5/get_in_tkt_with_keytab.c

   1 /*
   2  * Copyright (c) 1997 - 2001 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("$Heimdal: get_in_tkt_with_keytab.c 15477 2005-06-17 04:56:44Z lha $"
  37         "$NetBSD$");
  38
  39 krb5_error_code KRB5_LIB_FUNCTION
  40 krb5_keytab_key_proc (krb5_context context,
  41                       krb5_enctype enctype,
  42                       krb5_salt salt,
  43                       krb5_const_pointer keyseed,
  44                       krb5_keyblock **key)
  45 {
  46     krb5_keytab_key_proc_args *args  = rk_UNCONST(keyseed);
  47     krb5_keytab keytab = args->keytab;
  48     krb5_principal principal  = args->principal;
  49     krb5_error_code ret;
  50     krb5_keytab real_keytab;
  51     krb5_keytab_entry entry;
  52
  53     if(keytab == NULL)
  54         krb5_kt_default(context, &real_keytab);
  55     else
  56         real_keytab = keytab;
  57
  58     ret = krb5_kt_get_entry (context, real_keytab, principal,
  59                              0, enctype, &entry);
  60
  61     if (keytab == NULL)
  62         krb5_kt_close (context, real_keytab);
  63
  64     if (ret)
  65         return ret;
  66
  67     ret = krb5_copy_keyblock (context, &entry.keyblock, key);
  68     krb5_kt_free_entry(context, &entry);
  69     return ret;
  70 }
  71
  72 krb5_error_code KRB5_LIB_FUNCTION
  73 krb5_get_in_tkt_with_keytab (krb5_context context,
  74                              krb5_flags options,
  75                              krb5_addresses *addrs,
  76                              const krb5_enctype *etypes,
  77                              const krb5_preauthtype *pre_auth_types,
  78                              krb5_keytab keytab,
  79                              krb5_ccache ccache,
  80                              krb5_creds *creds,
  81                              krb5_kdc_rep *ret_as_reply)
  82 {
  83     krb5_keytab_key_proc_args a;
  84
  85     a.principal = creds->client;
  86     a.keytab    = keytab;
  87
  88     return krb5_get_in_tkt (context,
  89                             options,
  90                             addrs,
  91                             etypes,
  92                             pre_auth_types,
  93                             krb5_keytab_key_proc,
  94                             &a,
  95                             NULL,
  96                             NULL,
  97                             creds,
  98                             ccache,
  99                             ret_as_reply);
 100 }