2 Unix SMB/CIFS mplementation.
6 Copyright (C) Andrew Tridgell 2009
7 based on repl service code
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "dsdb/samdb/samdb.h"
26 #include "auth/auth.h"
27 #include "smbd/service.h"
28 #include "lib/events/events.h"
29 #include "lib/messaging/irpc.h"
30 #include "dsdb/kcc/kcc_service.h"
31 #include "lib/ldb/include/ldb_errors.h"
32 #include "../lib/util/dlinklist.h"
33 #include "librpc/gen_ndr/ndr_misc.h"
34 #include "librpc/gen_ndr/ndr_drsuapi.h"
35 #include "librpc/gen_ndr/ndr_drsblobs.h"
36 #include "param/param.h"
39 establish system creds
41 static WERROR kccsrv_init_creds(struct kccsrv_service *service)
43 service->system_session_info = system_session(service->task->lp_ctx);
44 if (!service->system_session_info) {
52 connect to the local SAM
54 static WERROR kccsrv_connect_samdb(struct kccsrv_service *service, struct loadparm_context *lp_ctx)
56 const struct GUID *ntds_guid;
58 service->samdb = samdb_connect(service, service->task->event_ctx, lp_ctx, service->system_session_info);
59 if (!service->samdb) {
60 return WERR_DS_UNAVAILABLE;
63 ntds_guid = samdb_ntds_objectGUID(service->samdb);
65 return WERR_DS_UNAVAILABLE;
68 service->ntds_guid = *ntds_guid;
75 load our local partition list
77 static WERROR kccsrv_load_partitions(struct kccsrv_service *s)
79 struct ldb_dn *basedn;
81 struct ldb_message_element *el;
82 static const char *attrs[] = { "namingContexts", "configurationNamingContext", NULL };
86 basedn = ldb_dn_new(s, s->samdb, NULL);
87 W_ERROR_HAVE_NO_MEMORY(basedn);
89 ret = ldb_search(s->samdb, s, &r, basedn, LDB_SCOPE_BASE, attrs,
92 if (ret != LDB_SUCCESS) {
94 } else if (r->count != 1) {
99 el = ldb_msg_find_element(r->msgs[0], "namingContexts");
104 for (i=0; el && i < el->num_values; i++) {
105 const char *v = (const char *)el->values[i].data;
107 struct kccsrv_partition *p;
109 pdn = ldb_dn_new(s, s->samdb, v);
110 if (!ldb_dn_validate(pdn)) {
114 p = talloc_zero(s, struct kccsrv_partition);
115 W_ERROR_HAVE_NO_MEMORY(p);
117 p->dn = talloc_steal(p, pdn);
120 DLIST_ADD(s->partitions, p);
122 DEBUG(2, ("kccsrv_partition[%s] loaded\n", v));
125 el = ldb_msg_find_element(r->msgs[0], "configurationNamingContext");
129 s->config_dn = ldb_dn_new(s, s->samdb, (const char *)el->values[0].data);
130 if (!ldb_dn_validate(s->config_dn)) {
141 startup the kcc service task
143 static void kccsrv_task_init(struct task_server *task)
146 struct kccsrv_service *service;
147 uint32_t periodic_startup_interval;
149 switch (lp_server_role(task->lp_ctx)) {
150 case ROLE_STANDALONE:
151 task_server_terminate(task, "kccsrv: no KCC required in standalone configuration", false);
153 case ROLE_DOMAIN_MEMBER:
154 task_server_terminate(task, "kccsrv: no KCC required in domain member configuration", false);
156 case ROLE_DOMAIN_CONTROLLER:
157 /* Yes, we want a KCC */
161 task_server_set_title(task, "task[kccsrv]");
163 service = talloc_zero(task, struct kccsrv_service);
165 task_server_terminate(task, "kccsrv_task_init: out of memory", true);
168 service->task = task;
169 service->startup_time = timeval_current();
170 task->private_data = service;
172 status = kccsrv_init_creds(service);
173 if (!W_ERROR_IS_OK(status)) {
174 task_server_terminate(task,
175 talloc_asprintf(task,
176 "kccsrv: Failed to obtain server credentials: %s\n",
177 win_errstr(status)), true);
181 status = kccsrv_connect_samdb(service, task->lp_ctx);
182 if (!W_ERROR_IS_OK(status)) {
183 task_server_terminate(task, talloc_asprintf(task,
184 "kccsrv: Failed to connect to local samdb: %s\n",
185 win_errstr(status)), true);
189 status = kccsrv_load_partitions(service);
190 if (!W_ERROR_IS_OK(status)) {
191 task_server_terminate(task, talloc_asprintf(task,
192 "kccsrv: Failed to load partitions: %s\n",
193 win_errstr(status)), true);
197 periodic_startup_interval = lp_parm_int(task->lp_ctx, NULL, "kccsrv",
198 "periodic_startup_interval", 15); /* in seconds */
199 service->periodic.interval = lp_parm_int(task->lp_ctx, NULL, "kccsrv",
200 "periodic_interval", 300); /* in seconds */
202 status = kccsrv_periodic_schedule(service, periodic_startup_interval);
203 if (!W_ERROR_IS_OK(status)) {
204 task_server_terminate(task, talloc_asprintf(task,
205 "kccsrv: Failed to periodic schedule: %s\n",
206 win_errstr(status)), true);
210 irpc_add_name(task->msg_ctx, "kccsrv");
214 register ourselves as a available server
216 NTSTATUS server_service_kcc_init(void)
218 return register_server_service("kcc", kccsrv_task_init);