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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/*
Unix SMB/CIFS mplementation.
DSDB replication service - extended operation code
Copyright (C) Andrew Tridgell 2010
Copyright (C) Andrew Bartlett 2010
Copyright (C) Nadezhda Ivanova 2010
based on drepl_notify.c
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "ldb_module.h"
#include "dsdb/samdb/samdb.h"
#include "smbd/service.h"
#include "dsdb/repl/drepl_service.h"
#include "param/param.h"
/*
create the role owner source dsa structure
nc_dn: the DN of the subtree being replicated
source_dsa_dn: the DN of the server that we are replicating from
*/
static WERROR drepl_create_extended_source_dsa(struct dreplsrv_service *service,
struct ldb_dn *nc_dn,
struct ldb_dn *source_dsa_dn,
uint64_t min_usn,
struct dreplsrv_partition_source_dsa **_sdsa)
{
struct dreplsrv_partition_source_dsa *sdsa;
struct ldb_context *ldb = service->samdb;
int ret;
WERROR werr;
struct ldb_dn *nc_root;
struct dreplsrv_partition *p;
sdsa = talloc_zero(service, struct dreplsrv_partition_source_dsa);
W_ERROR_HAVE_NO_MEMORY(sdsa);
sdsa->partition = talloc_zero(sdsa, struct dreplsrv_partition);
if (!sdsa->partition) {
talloc_free(sdsa);
return WERR_NOMEM;
}
sdsa->partition->dn = ldb_dn_copy(sdsa->partition, nc_dn);
if (!sdsa->partition->dn) {
talloc_free(sdsa);
return WERR_NOMEM;
}
sdsa->partition->nc.dn = ldb_dn_alloc_linearized(sdsa->partition, nc_dn);
if (!sdsa->partition->nc.dn) {
talloc_free(sdsa);
return WERR_NOMEM;
}
ret = dsdb_find_guid_by_dn(ldb, nc_dn, &sdsa->partition->nc.guid);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to find GUID for %s\n",
ldb_dn_get_linearized(nc_dn)));
talloc_free(sdsa);
return WERR_DS_DRA_INTERNAL_ERROR;
}
sdsa->repsFrom1 = &sdsa->_repsFromBlob.ctr.ctr1;
ret = dsdb_find_guid_by_dn(ldb, source_dsa_dn, &sdsa->repsFrom1->source_dsa_obj_guid);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to find objectGUID for %s\n",
ldb_dn_get_linearized(source_dsa_dn)));
talloc_free(sdsa);
return WERR_DS_DRA_INTERNAL_ERROR;
}
sdsa->repsFrom1->other_info = talloc_zero(sdsa, struct repsFromTo1OtherInfo);
if (!sdsa->repsFrom1->other_info) {
talloc_free(sdsa);
return WERR_NOMEM;
}
sdsa->repsFrom1->other_info->dns_name = samdb_ntds_msdcs_dns_name(ldb,
sdsa->repsFrom1->other_info,
&sdsa->repsFrom1->source_dsa_obj_guid);
if (!sdsa->repsFrom1->other_info->dns_name) {
talloc_free(sdsa);
return WERR_NOMEM;
}
werr = dreplsrv_out_connection_attach(service, sdsa->repsFrom1, &sdsa->conn);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,(__location__ ": Failed to attach connection to %s\n",
ldb_dn_get_linearized(nc_dn)));
talloc_free(sdsa);
return werr;
}
ret = dsdb_find_nc_root(service->samdb, sdsa, nc_dn, &nc_root);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to find nc_root for %s\n",
ldb_dn_get_linearized(nc_dn)));
talloc_free(sdsa);
return WERR_DS_DRA_INTERNAL_ERROR;
}
/* use the partition uptodateness vector */
ret = dsdb_load_udv_v2(service->samdb, nc_root, sdsa->partition,
&sdsa->partition->uptodatevector.cursors,
&sdsa->partition->uptodatevector.count);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to load UDV for %s\n",
ldb_dn_get_linearized(nc_root)));
talloc_free(sdsa);
return WERR_DS_DRA_INTERNAL_ERROR;
}
/* find the highwatermark from the partitions list */
for (p=service->partitions; p; p=p->next) {
if (ldb_dn_compare(p->dn, nc_root) == 0) {
struct dreplsrv_partition_source_dsa *s;
werr = dreplsrv_partition_source_dsa_by_guid(p,
&sdsa->repsFrom1->source_dsa_obj_guid,
&s);
if (W_ERROR_IS_OK(werr)) {
sdsa->repsFrom1->highwatermark = s->repsFrom1->highwatermark;
sdsa->repsFrom1->replica_flags = s->repsFrom1->replica_flags;
}
}
}
if (!service->am_rodc) {
sdsa->repsFrom1->replica_flags |= DRSUAPI_DRS_WRIT_REP;
}
*_sdsa = sdsa;
return WERR_OK;
}
struct extended_op_data {
dreplsrv_extended_callback_t callback;
void *callback_data;
struct dreplsrv_partition_source_dsa *sdsa;
};
/*
called when an extended op finishes
*/
static void extended_op_callback(struct dreplsrv_service *service,
WERROR err,
enum drsuapi_DsExtendedError exop_error,
void *cb_data)
{
struct extended_op_data *data = talloc_get_type_abort(cb_data, struct extended_op_data);
talloc_free(data->sdsa);
data->callback(service, err, exop_error, data->callback_data);
talloc_free(data);
}
/*
schedule a getncchanges request to the role owner for an extended operation
*/
WERROR drepl_request_extended_op(struct dreplsrv_service *service,
struct ldb_dn *nc_dn,
struct ldb_dn *source_dsa_dn,
enum drsuapi_DsExtendedOperation extended_op,
uint64_t fsmo_info,
uint64_t min_usn,
dreplsrv_extended_callback_t callback,
void *callback_data)
{
WERROR werr;
struct extended_op_data *data;
struct dreplsrv_partition_source_dsa *sdsa;
werr = drepl_create_extended_source_dsa(service, nc_dn, source_dsa_dn, min_usn, &sdsa);
W_ERROR_NOT_OK_RETURN(werr);
data = talloc(service, struct extended_op_data);
W_ERROR_HAVE_NO_MEMORY(data);
data->callback = callback;
data->callback_data = callback_data;
data->sdsa = sdsa;
werr = dreplsrv_schedule_partition_pull_source(service, sdsa,
0, extended_op, fsmo_info,
extended_op_callback, data);
if (!W_ERROR_IS_OK(werr)) {
talloc_free(sdsa);
talloc_free(data);
}
dreplsrv_run_pending_ops(service);
return werr;
}
|
