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_boolean keepold,
  47                           int n_ks_tuple,
  48                           krb5_key_salt_tuple *ks_tuple,
  49                           krb5_keyblock **new_keys,
  50                           int *n_keys)
  51 {
  52     kadm5_server_context *context = server_handle;
  53     hdb_entry_ex ent;
  54     kadm5_ret_t ret;
  55
  56     memset(&ent, 0, sizeof(ent));
  57     if (!context->keep_open) {
  58         ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
  59         if(ret)
  60             return ret;
  61     }
  62     ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
  63                                       HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
  64     if(ret)
  65         goto out;
  66
  67     if (keepold) {
  68         ret = hdb_add_current_keys_to_history(context->context, &ent.entry);
  69         if (ret)
  70             goto out2;
  71     }
  72
  73     ret = _kadm5_set_keys_randomly (context,
  74                                     &ent.entry,
  75                                     n_ks_tuple,
  76                                     ks_tuple,
  77                                     new_keys,
  78                                     n_keys);
  79     if (ret)
  80         goto out2;
  81     ent.entry.kvno++;
  82
  83     ent.entry.flags.require_pwchange = 0;
  84
  85     ret = _kadm5_set_modifier(context, &ent.entry);
  86     if(ret)
  87         goto out3;
  88     ret = _kadm5_bump_pw_expire(context, &ent.entry);
  89     if (ret)
  90         goto out2;
  91
  92     if (keepold) {
  93         ret = hdb_seal_keys(context->context, context->db, &ent.entry);
  94         if (ret)
  95             goto out2;
  96     } else {
  97         HDB_extension ext;
  98
  99         memset(&ext, 0, sizeof (ext));
 100         ext.data.element = choice_HDB_extension_data_hist_keys;
 101         ext.data.u.hist_keys.len = 0;
 102         ext.data.u.hist_keys.val = NULL;
 103         hdb_replace_extension(context->context, &ent.entry, &ext);
 104     }
 105
 106     ret = context->db->hdb_store(context->context, context->db,
 107                                  HDB_F_REPLACE, &ent);
 108     if (ret)
 109         goto out2;
 110
 111     kadm5_log_modify(context, &ent.entry,
 112                      KADM5_ATTRIBUTES | KADM5_PRINCIPAL | KADM5_MOD_NAME |
 113                      KADM5_MOD_TIME | KADM5_KEY_DATA | KADM5_KVNO |
 114                      KADM5_PW_EXPIRATION | KADM5_TL_DATA);
 115
 116 out3:
 117     if (ret) {
 118         int i;
 119
 120         for (i = 0; i < *n_keys; ++i)
 121             krb5_free_keyblock_contents (context->context, &(*new_keys)[i]);
 122         free (*new_keys);
 123         *new_keys = NULL;
 124         *n_keys = 0;
 125     }
 126 out2:
 127     hdb_free_entry(context->context, &ent);
 128 out:
 129     if (!context->keep_open)
 130         context->db->hdb_close(context->context, context->db);
 131     return _kadm5_error_code(ret);
 132 }