Merge branch 'master' of git://git.samba.org/samba
[ira/wip.git] / source4 / dsdb / repl / drepl_service.c
1 /* 
2    Unix SMB/CIFS mplementation.
3    DSDB replication service
4    
5    Copyright (C) Stefan Metzmacher 2007
6     
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11    
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16    
17    You should have received a copy of the GNU General Public License
18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
19    
20 */
21
22 #include "includes.h"
23 #include "dsdb/samdb/samdb.h"
24 #include "auth/auth.h"
25 #include "smbd/service.h"
26 #include "lib/events/events.h"
27 #include "lib/messaging/irpc.h"
28 #include "dsdb/repl/drepl_service.h"
29 #include "lib/ldb/include/ldb_errors.h"
30 #include "../lib/util/dlinklist.h"
31 #include "librpc/gen_ndr/ndr_misc.h"
32 #include "librpc/gen_ndr/ndr_drsuapi.h"
33 #include "librpc/gen_ndr/ndr_drsblobs.h"
34 #include "param/param.h"
35
36 static WERROR dreplsrv_init_creds(struct dreplsrv_service *service)
37 {
38         NTSTATUS status;
39
40         status = auth_system_session_info(service, service->task->lp_ctx, 
41                                           &service->system_session_info);
42         if (!NT_STATUS_IS_OK(status)) {
43                 return ntstatus_to_werror(status);
44         }
45
46         return WERR_OK;
47 }
48
49 static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service, struct loadparm_context *lp_ctx)
50 {
51         const struct GUID *ntds_guid;
52         struct drsuapi_DsBindInfo28 *bind_info28;
53
54         service->samdb = samdb_connect(service, service->task->event_ctx, lp_ctx, service->system_session_info);
55         if (!service->samdb) {
56                 return WERR_DS_UNAVAILABLE;
57         }
58
59         ntds_guid = samdb_ntds_objectGUID(service->samdb);
60         if (!ntds_guid) {
61                 return WERR_DS_UNAVAILABLE;
62         }
63
64         service->ntds_guid = *ntds_guid;
65
66         bind_info28                             = &service->bind_info28;
67         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
68         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
69         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
70         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
71         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
72         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
73         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
74         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
75         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
76 #if 0
77         if (s->domain_behavior_version == 2) {
78                 /* TODO: find out how this is really triggered! */
79                 bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
80         }
81 #endif
82         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
83         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
84         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
85         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
86         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
87         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
88         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
89         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
90         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
91         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_00100000;
92         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
93         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
94         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
95         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
96         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
97         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
98         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
99         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
100         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
101 #if 0 /* we don't support XPRESS compression yet */
102         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS;
103 #endif
104         /* TODO: fill in site_guid */
105         bind_info28->site_guid                  = GUID_zero();
106         /* TODO: find out how this is really triggered! */
107         bind_info28->pid                        = 0;
108         bind_info28->repl_epoch                 = 0;
109
110         return WERR_OK;
111 }
112
113 /*
114   startup the dsdb replicator service task
115 */
116 static void dreplsrv_task_init(struct task_server *task)
117 {
118         WERROR status;
119         struct dreplsrv_service *service;
120         uint32_t periodic_startup_interval;
121
122         switch (lp_server_role(task->lp_ctx)) {
123         case ROLE_STANDALONE:
124                 task_server_terminate(task, "dreplsrv: no DSDB replication required in standalone configuration");
125                 return;
126         case ROLE_DOMAIN_MEMBER:
127                 task_server_terminate(task, "dreplsrv: no DSDB replication required in domain member configuration");
128                 return;
129         case ROLE_DOMAIN_CONTROLLER:
130                 /* Yes, we want DSDB replication */
131                 break;
132         }
133
134         task_server_set_title(task, "task[dreplsrv]");
135
136         service = talloc_zero(task, struct dreplsrv_service);
137         if (!service) {
138                 task_server_terminate(task, "dreplsrv_task_init: out of memory");
139                 return;
140         }
141         service->task           = task;
142         service->startup_time   = timeval_current();
143         task->private_data      = service;
144
145         status = dreplsrv_init_creds(service);
146         if (!W_ERROR_IS_OK(status)) {
147                 task_server_terminate(task, talloc_asprintf(task,
148                                       "dreplsrv: Failed to obtain server credentials: %s\n",
149                                       win_errstr(status)));
150                 return;
151         }
152
153         status = dreplsrv_connect_samdb(service, task->lp_ctx);
154         if (!W_ERROR_IS_OK(status)) {
155                 task_server_terminate(task, talloc_asprintf(task,
156                                       "dreplsrv: Failed to connect to local samdb: %s\n",
157                                       win_errstr(status)));
158                 return;
159         }
160
161         status = dreplsrv_load_partitions(service);
162         if (!W_ERROR_IS_OK(status)) {
163                 task_server_terminate(task, talloc_asprintf(task,
164                                       "dreplsrv: Failed to load partitions: %s\n",
165                                       win_errstr(status)));
166                 return;
167         }
168
169         periodic_startup_interval       = lp_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_startup_interval", 15); /* in seconds */
170         service->periodic.interval      = lp_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_interval", 300); /* in seconds */
171
172         status = dreplsrv_periodic_schedule(service, periodic_startup_interval);
173         if (!W_ERROR_IS_OK(status)) {
174                 task_server_terminate(task, talloc_asprintf(task,
175                                       "dreplsrv: Failed to periodic schedule: %s\n",
176                                       win_errstr(status)));
177                 return;
178         }
179
180         irpc_add_name(task->msg_ctx, "dreplsrv");
181 }
182
183 /*
184   register ourselves as a available server
185 */
186 NTSTATUS server_service_drepl_init(void)
187 {
188         return register_server_service("drepl", dreplsrv_task_init);
189 }