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 "lib/ldb/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*/
32char *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*/
45char *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, NULL, 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*/
64char *ldap_encode_ndr_GUID(TALLOC_CTX *mem_ctx, struct GUID *guid)
65{
66	DATA_BLOB blob;
67	enum ndr_err_code ndr_err;
68	char *ret;
69	ndr_err = ndr_push_struct_blob(&blob, mem_ctx, NULL, guid,
70				       (ndr_push_flags_fn_t)ndr_push_GUID);
71	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
72		return NULL;
73	}
74	ret = ldb_binary_encode(mem_ctx, blob);
75	data_blob_free(&blob);
76	return ret;
77}
78
79/*
80  decode a NDR GUID from a ldap filter element
81*/
82NTSTATUS ldap_decode_ndr_GUID(TALLOC_CTX *mem_ctx, struct ldb_val val, struct GUID *guid)
83{
84	DATA_BLOB blob;
85	enum ndr_err_code ndr_err;
86
87	blob.data = val.data;
88	blob.length = val.length;
89	ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, NULL, guid,
90				       (ndr_pull_flags_fn_t)ndr_pull_GUID);
91	talloc_free(val.data);
92	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
93		return ndr_map_error2ntstatus(ndr_err);
94	}
95	return NT_STATUS_OK;
96}
97