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