libcli/ldap/ldap_ndr.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3
   4    wrap/unwrap NDR encoded elements for ldap calls
   5
   6    Copyright (C) Andrew Tridgell  2005
   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
  23 #include "includes.h"
  24 #include <ldb.h>
  25 #include "librpc/gen_ndr/ndr_security.h"
  26 #include "librpc/gen_ndr/ndr_misc.h"
  27 #include "libcli/ldap/ldap_ndr.h"
  28
  29 /*
  30   encode a NDR uint32 as a ldap filter element
  31 */
  32 char *ldap_encode_ndr_uint32(TALLOC_CTX *mem_ctx, uint32_t value)
  33 {
  34         uint8_t buf[4];
  35         struct ldb_val val;
  36         SIVAL(buf, 0, value);
  37         val.data = buf;
  38         val.length = 4;
  39         return ldb_binary_encode(mem_ctx, val);
  40 }
  41
  42 /*
  43   encode a NDR dom_sid as a ldap filter element
  44 */
  45 char *ldap_encode_ndr_dom_sid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
  46 {
  47         DATA_BLOB blob;
  48         enum ndr_err_code ndr_err;
  49         char *ret;
  50         ndr_err = ndr_push_struct_blob(&blob, mem_ctx, sid,
  51                                        (ndr_push_flags_fn_t)ndr_push_dom_sid);
  52         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  53                 return NULL;
  54         }
  55         ret = ldb_binary_encode(mem_ctx, blob);
  56         data_blob_free(&blob);
  57         return ret;
  58 }
  59
  60
  61 /*
  62   encode a NDR GUID as a ldap filter element
  63 */
  64 char *ldap_encode_ndr_GUID(TALLOC_CTX *mem_ctx, const struct GUID *guid)
  65 {
  66         DATA_BLOB blob;
  67         NTSTATUS status;
  68         char *ret;
  69         status = GUID_to_ndr_blob(guid, mem_ctx, &blob);
  70         if (!NT_STATUS_IS_OK(status)) {
  71                 return NULL;
  72         }
  73         ret = ldb_binary_encode(mem_ctx, blob);
  74         data_blob_free(&blob);
  75         return ret;
  76 }
  77
  78 /*
  79   decode a NDR GUID from a ldap filter element
  80 */
  81 NTSTATUS ldap_decode_ndr_GUID(TALLOC_CTX *mem_ctx, struct ldb_val val, struct GUID *guid)
  82 {
  83         DATA_BLOB blob;
  84         enum ndr_err_code ndr_err;
  85
  86         blob.data = val.data;
  87         blob.length = val.length;
  88         ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, guid,
  89                                        (ndr_pull_flags_fn_t)ndr_pull_GUID);
  90         talloc_free(val.data);
  91         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  92                 return ndr_map_error2ntstatus(ndr_err);
  93         }
  94         return NT_STATUS_OK;
  95 }