source4/kdc/hdb-samba4-plugin.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    KDC Server startup
   5
   6    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-20011
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "kdc/kdc-glue.h"
  24 #include "lib/param/param.h"
  25
  26 static krb5_error_code hdb_samba4_create(krb5_context context, struct HDB **db, const char *arg)
  27 {
  28         NTSTATUS nt_status;
  29         void *ptr = NULL;
  30         struct samba_kdc_base_context *base_ctx = NULL;
  31
  32         if (sscanf(arg, "&%p", &ptr) != 1) {
  33                 return EINVAL;
  34         }
  35
  36         base_ctx = talloc_get_type_abort(ptr, struct samba_kdc_base_context);
  37
  38         /* The global kdc_mem_ctx and kdc_lp_ctx, Disgusting, ugly hack, but it means one less private hook */
  39         nt_status = hdb_samba4_kpasswd_create_kdc(base_ctx, context, db);
  40
  41         if (NT_STATUS_IS_OK(nt_status)) {
  42                 return 0;
  43         } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ERROR_DS_INCOMPATIBLE_VERSION)) {
  44                 return EINVAL;
  45         } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
  46
  47                 krb5_set_error_message(context, EINVAL, "Failed to open Samba4 LDB at %s", lpcfg_private_path(base_ctx, base_ctx->lp_ctx, "sam.ldb"));
  48         } else {
  49                 krb5_set_error_message(context, EINVAL, "Failed to connect to Samba4 DB: %s (%s)", get_friendly_nt_error_msg(nt_status), nt_errstr(nt_status));
  50         }
  51
  52         return EINVAL;
  53 }
  54
  55 #if (HDB_INTERFACE_VERSION != 11)
  56 #error "Unsupported Heimdal HDB version"
  57 #endif
  58
  59 #if HDB_INTERFACE_VERSION >= 8
  60 static krb5_error_code hdb_samba4_init(krb5_context context, void **ctx)
  61 {
  62         *ctx = NULL;
  63         return 0;
  64 }
  65
  66 static void hdb_samba4_fini(void *ctx)
  67 {
  68 }
  69 #endif
  70
  71 /* Only used in the hdb-backed keytab code
  72  * for a keytab of 'samba4&<address>' or samba4, to find
  73  * kpasswd's key in the main DB
  74  *
  75  * The <address> is the string form of a pointer to a talloced struct hdb_samba_context
  76  */
  77 struct hdb_method hdb_samba4_interface = {
  78         HDB_INTERFACE_VERSION,
  79 #if HDB_INTERFACE_VERSION >= 8
  80         .init = hdb_samba4_init,
  81         .fini = hdb_samba4_fini,
  82 #endif
  83         .prefix = "samba4",
  84         .create = hdb_samba4_create
  85 };