lib/kadm5/randkey_s.c

   1 /*
   2  * Copyright (c) 1997-2001, 2003-2006 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 "kadm5_locl.h"
  35
  36 RCSID("$Id$");
  37
  38 /*
  39  * Set the keys of `princ' to random values, returning the random keys
  40  * in `new_keys', `n_keys'.
  41  */
  42
  43 kadm5_ret_t
  44 kadm5_s_randkey_principal(void *server_handle,
  45                           krb5_principal princ,
  46                           krb5_keyblock **new_keys,
  47                           int *n_keys)
  48 {
  49     kadm5_server_context *context = server_handle;
  50     hdb_entry_ex ent;
  51     kadm5_ret_t ret;
  52
  53     memset(&ent, 0, sizeof(ent));
  54     ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
  55     if(ret)
  56         return ret;
  57     ret = context->db->hdb_fetch(context->context, context->db, princ,
  58                                  HDB_F_GET_ANY|HDB_F_ADMIN_DATA, &ent);
  59     if(ret)
  60         goto out;
  61
  62     ret = _kadm5_set_keys_randomly (context,
  63                                     &ent.entry,
  64                                     new_keys,
  65                                     n_keys);
  66     if (ret)
  67         goto out2;
  68     ent.entry.kvno++;
  69
  70     ret = _kadm5_set_modifier(context, &ent.entry);
  71     if(ret)
  72         goto out3;
  73     ret = _kadm5_bump_pw_expire(context, &ent.entry);
  74     if (ret)
  75         goto out2;
  76
  77     ret = hdb_seal_keys(context->context, context->db, &ent.entry);
  78     if (ret)
  79         goto out2;
  80
  81     ret = context->db->hdb_store(context->context, context->db,
  82                                  HDB_F_REPLACE, &ent);
  83     if (ret)
  84         goto out2;
  85
  86     kadm5_log_modify (context,
  87                       &ent.entry,
  88                       KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME |
  89                       KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION |
  90                       KADM5_TL_DATA);
  91
  92 out3:
  93     if (ret) {
  94         int i;
  95
  96         for (i = 0; i < *n_keys; ++i)
  97             krb5_free_keyblock_contents (context->context, &(*new_keys)[i]);
  98         free (*new_keys);
  99         *new_keys = NULL;
 100         *n_keys = 0;
 101     }
 102 out2:
 103     hdb_free_entry(context->context, &ent);
 104 out:
 105     context->db->hdb_close(context->context, context->db);
 106     return _kadm5_error_code(ret);
 107 }