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 #if _SAMBA_BUILD_ == 3
  25 #include "lib/ldb_compat.h"
  26 #else
  27 #include <ldb.h>
  28 #endif
  29 #include "librpc/gen_ndr/ndr_security.h"
  30 #include "librpc/gen_ndr/ndr_misc.h"
  31 #include "libcli/ldap/ldap_ndr.h"
  32
  33 /*
  34   encode a NDR uint32 as a ldap filter element
  35 */
  36 char *ldap_encode_ndr_uint32(TALLOC_CTX *mem_ctx, uint32_t value)
  37 {
  38         uint8_t buf[4];
  39         struct ldb_val val;
  40         SIVAL(buf, 0, value);
  41         val.data = buf;
  42         val.length = 4;
  43         return ldb_binary_encode(mem_ctx, val);
  44 }
  45
  46 /*
  47   encode a NDR dom_sid as a ldap filter element
  48 */
  49 char *ldap_encode_ndr_dom_sid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
  50 {
  51         DATA_BLOB blob;
  52         enum ndr_err_code ndr_err;
  53         char *ret;
  54         ndr_err = ndr_push_struct_blob(&blob, mem_ctx, sid,
  55                                        (ndr_push_flags_fn_t)ndr_push_dom_sid);
  56         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  57                 return NULL;
  58         }
  59         ret = ldb_binary_encode(mem_ctx, blob);
  60         data_blob_free(&blob);
  61         return ret;
  62 }
  63
  64
  65 /*
  66   encode a NDR GUID as a ldap filter element
  67 */
  68 char *ldap_encode_ndr_GUID(TALLOC_CTX *mem_ctx, const struct GUID *guid)
  69 {
  70         DATA_BLOB blob;
  71         NTSTATUS status;
  72         char *ret;
  73         status = GUID_to_ndr_blob(guid, mem_ctx, &blob);
  74         if (!NT_STATUS_IS_OK(status)) {
  75                 return NULL;
  76         }
  77         ret = ldb_binary_encode(mem_ctx, blob);
  78         data_blob_free(&blob);
  79         return ret;
  80 }
  81
  82 /*
  83   decode a NDR GUID from a ldap filter element
  84 */
  85 NTSTATUS ldap_decode_ndr_GUID(TALLOC_CTX *mem_ctx, struct ldb_val val, struct GUID *guid)
  86 {
  87         DATA_BLOB blob;
  88         enum ndr_err_code ndr_err;
  89
  90         blob.data = val.data;
  91         blob.length = val.length;
  92         ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, guid,
  93                                        (ndr_pull_flags_fn_t)ndr_pull_GUID);
  94         talloc_free(val.data);
  95         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  96                 return ndr_map_error2ntstatus(ndr_err);
  97         }
  98         return NT_STATUS_OK;
  99 }