1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
ldb database library
Copyright (C) Simo Sorce 2004-2006
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
Copyright (C) Andrew Tridgell 2005
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* Name: ldb
*
* Component: ldb instancetype module
*
* Description: add an instanceType onto every new record
*
* Author: Andrew Bartlett
*/
#include "includes.h"
#include "ldb/include/ldb_includes.h"
#include "librpc/gen_ndr/ndr_misc.h"
#include "param/param.h"
#include "dsdb/samdb/samdb.h"
#include "dsdb/common/flags.h"
/* add_record: add instancetype attribute */
static int instancetype_add(struct ldb_module *module, struct ldb_request *req)
{
struct ldb_request *down_req;
struct ldb_message *msg;
uint32_t instance_type;
int ret;
const struct ldb_control *partition_ctrl;
const struct dsdb_control_current_partition *partition;
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "instancetype_add_record\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.add.message->dn)) {
return ldb_next_request(module, req);
}
partition_ctrl = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
if (!partition_ctrl) {
ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
"instancetype_add: no current partition control found");
return LDB_ERR_CONSTRAINT_VIOLATION;
}
partition = talloc_get_type(partition_ctrl->data,
struct dsdb_control_current_partition);
SMB_ASSERT(partition && partition->version == DSDB_CONTROL_CURRENT_PARTITION_VERSION);
down_req = talloc(req, struct ldb_request);
if (down_req == NULL) {
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
*down_req = *req;
/* we have to copy the message as the caller might have it as a const */
down_req->op.add.message = msg = ldb_msg_copy_shallow(down_req, req->op.add.message);
if (msg == NULL) {
talloc_free(down_req);
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
/*
* TODO: calculate correct instance type
*/
instance_type = INSTANCE_TYPE_WRITE;
if (ldb_dn_compare(partition->dn, msg->dn) == 0) {
instance_type |= INSTANCE_TYPE_IS_NC_HEAD;
if (ldb_dn_compare(msg->dn, samdb_base_dn(module->ldb)) != 0) {
instance_type |= INSTANCE_TYPE_NC_ABOVE;
}
}
ret = ldb_msg_add_fmt(msg, "instanceType", "%u", instance_type);
if (ret != LDB_SUCCESS) {
talloc_free(down_req);
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
ldb_set_timeout_from_prev_req(module->ldb, req, down_req);
/* go on with the call chain */
ret = ldb_next_request(module, down_req);
/* do not free down_req as the call results may be linked to it,
* it will be freed when the upper level request get freed */
if (ret == LDB_SUCCESS) {
req->handle = down_req->handle;
}
return ret;
}
static const struct ldb_module_ops instancetype_ops = {
.name = "instancetype",
.add = instancetype_add,
};
int ldb_instancetype_init(void)
{
return ldb_register_module(&instancetype_ops);
}
|
