2 Unix SMB/CIFS mplementation.
3 Helper functions for applying replicated objects
5 Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
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.
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.
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/>.
23 #include "dsdb/samdb/samdb.h"
24 #include "lib/ldb/include/ldb_errors.h"
25 #include "../lib/util/dlinklist.h"
26 #include "librpc/gen_ndr/ndr_misc.h"
27 #include "librpc/gen_ndr/ndr_drsuapi.h"
28 #include "librpc/gen_ndr/ndr_drsblobs.h"
29 #include "../lib/crypto/crypto.h"
30 #include "../libcli/drsuapi/drsuapi.h"
31 #include "libcli/auth/libcli_auth.h"
32 #include "param/param.h"
34 WERROR dsdb_convert_object_ex(struct ldb_context *ldb,
35 const struct dsdb_schema *schema,
36 const struct drsuapi_DsReplicaObjectListItemEx *in,
37 const DATA_BLOB *gensec_skey,
39 struct dsdb_extended_replicated_object *out)
44 struct ldb_message *msg;
45 struct replPropertyMetaDataBlob *md;
46 struct ldb_val guid_value;
47 NTTIME whenChanged = 0;
49 const char *whenChanged_s;
50 const char *rdn_name = NULL;
51 const struct ldb_val *rdn_value = NULL;
52 const struct dsdb_attribute *rdn_attr = NULL;
54 struct drsuapi_DsReplicaAttribute *name_a = NULL;
55 struct drsuapi_DsReplicaMetaData *name_d = NULL;
56 struct replPropertyMetaData1 *rdn_m = NULL;
57 struct dom_sid *sid = NULL;
61 if (!in->object.identifier) {
65 if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
69 if (in->object.attribute_ctr.num_attributes != 0 && !in->meta_data_ctr) {
73 if (in->object.attribute_ctr.num_attributes != in->meta_data_ctr->count) {
77 sid = &in->object.identifier->sid;
78 if (sid->num_auths > 0) {
79 rid = sid->sub_auths[sid->num_auths - 1];
82 msg = ldb_msg_new(mem_ctx);
83 W_ERROR_HAVE_NO_MEMORY(msg);
85 msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
86 W_ERROR_HAVE_NO_MEMORY(msg->dn);
88 rdn_name = ldb_dn_get_rdn_name(msg->dn);
89 rdn_attr = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
93 rdn_attid = rdn_attr->attributeID_id;
94 rdn_value = ldb_dn_get_rdn_val(msg->dn);
96 msg->num_elements = in->object.attribute_ctr.num_attributes;
97 msg->elements = talloc_array(msg, struct ldb_message_element,
99 W_ERROR_HAVE_NO_MEMORY(msg->elements);
101 md = talloc(mem_ctx, struct replPropertyMetaDataBlob);
102 W_ERROR_HAVE_NO_MEMORY(md);
106 md->ctr.ctr1.count = in->meta_data_ctr->count;
107 md->ctr.ctr1.reserved = 0;
108 md->ctr.ctr1.array = talloc_array(mem_ctx,
109 struct replPropertyMetaData1,
110 md->ctr.ctr1.count + 1); /* +1 because of the RDN attribute */
111 W_ERROR_HAVE_NO_MEMORY(md->ctr.ctr1.array);
113 for (i=0; i < in->meta_data_ctr->count; i++) {
114 struct drsuapi_DsReplicaAttribute *a;
115 struct drsuapi_DsReplicaMetaData *d;
116 struct replPropertyMetaData1 *m;
117 struct ldb_message_element *e;
120 a = &in->object.attribute_ctr.attributes[i];
121 d = &in->meta_data_ctr->meta_data[i];
122 m = &md->ctr.ctr1.array[i];
123 e = &msg->elements[i];
125 for (j=0; j<a->value_ctr.num_values; j++) {
126 status = drsuapi_decrypt_attribute(a->value_ctr.values[j].blob, gensec_skey, rid, a);
127 W_ERROR_NOT_OK_RETURN(status);
130 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, a, msg->elements, e);
131 W_ERROR_NOT_OK_RETURN(status);
134 m->version = d->version;
135 m->originating_change_time = d->originating_change_time;
136 m->originating_invocation_id = d->originating_invocation_id;
137 m->originating_usn = d->originating_usn;
140 if (d->originating_change_time > whenChanged) {
141 whenChanged = d->originating_change_time;
144 if (a->attid == DRSUAPI_ATTID_name) {
147 rdn_m = &md->ctr.ctr1.array[md->ctr.ctr1.count];
152 struct ldb_message_element *el;
153 el = ldb_msg_find_element(msg, rdn_attr->lDAPDisplayName);
155 ret = ldb_msg_add_value(msg, rdn_attr->lDAPDisplayName, rdn_value, NULL);
156 if (ret != LDB_SUCCESS) {
160 if (el->num_values != 1) {
161 DEBUG(0,(__location__ ": Unexpected num_values=%u\n",
165 if (!ldb_val_equal_exact(&el->values[0], rdn_value)) {
166 DEBUG(0,(__location__ ": RDN value changed? '%*.*s' '%*.*s'\n",
167 (int)el->values[0].length, (int)el->values[0].length, el->values[0].data,
168 (int)rdn_value->length, (int)rdn_value->length, rdn_value->data));
173 rdn_m->attid = rdn_attid;
174 rdn_m->version = name_d->version;
175 rdn_m->originating_change_time = name_d->originating_change_time;
176 rdn_m->originating_invocation_id = name_d->originating_invocation_id;
177 rdn_m->originating_usn = name_d->originating_usn;
178 rdn_m->local_usn = 0;
179 md->ctr.ctr1.count++;
183 whenChanged_t = nt_time_to_unix(whenChanged);
184 whenChanged_s = ldb_timestring(msg, whenChanged_t);
185 W_ERROR_HAVE_NO_MEMORY(whenChanged_s);
187 nt_status = GUID_to_ndr_blob(&in->object.identifier->guid, msg, &guid_value);
188 if (!NT_STATUS_IS_OK(nt_status)) {
189 return ntstatus_to_werror(nt_status);
193 out->guid_value = guid_value;
194 out->when_changed = whenChanged_s;
199 WERROR dsdb_replicated_objects_convert(struct ldb_context *ldb,
200 const char *partition_dn_str,
201 const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr,
202 uint32_t object_count,
203 const struct drsuapi_DsReplicaObjectListItemEx *first_object,
204 uint32_t linked_attributes_count,
205 const struct drsuapi_DsReplicaLinkedAttribute *linked_attributes,
206 const struct repsFromTo1 *source_dsa,
207 const struct drsuapi_DsReplicaCursor2CtrEx *uptodateness_vector,
208 const DATA_BLOB *gensec_skey,
210 struct dsdb_extended_replicated_objects **objects)
213 struct ldb_dn *partition_dn;
214 const struct dsdb_schema *schema;
215 struct dsdb_extended_replicated_objects *out;
216 const struct drsuapi_DsReplicaObjectListItemEx *cur;
219 out = talloc_zero(mem_ctx, struct dsdb_extended_replicated_objects);
220 W_ERROR_HAVE_NO_MEMORY(out);
221 out->version = DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION;
223 /* Get the schema, and ensure it's kept valid for as long as 'out' which may contain pointers to it */
224 schema = dsdb_get_schema(ldb, out);
227 return WERR_DS_SCHEMA_NOT_LOADED;
230 partition_dn = ldb_dn_new(out, ldb, partition_dn_str);
231 W_ERROR_HAVE_NO_MEMORY_AND_FREE(partition_dn, out);
233 if (ldb_dn_compare(partition_dn, ldb_get_schema_basedn(ldb)) != 0) {
235 * check for schema changes in case
236 * we are not replicating Schema NC
238 status = dsdb_schema_info_cmp(schema, mapping_ctr);
239 if (!W_ERROR_IS_OK(status)) {
240 DEBUG(1,("Remote schema has changed while replicating %s\n",
247 out->partition_dn = partition_dn;
249 out->source_dsa = source_dsa;
250 out->uptodateness_vector= uptodateness_vector;
252 out->num_objects = object_count;
253 out->objects = talloc_array(out,
254 struct dsdb_extended_replicated_object,
256 W_ERROR_HAVE_NO_MEMORY_AND_FREE(out->objects, out);
258 /* pass the linked attributes down to the repl_meta_data
260 out->linked_attributes_count = linked_attributes_count;
261 out->linked_attributes = linked_attributes;
263 for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
264 if (i == out->num_objects) {
269 status = dsdb_convert_object_ex(ldb, schema,
271 out->objects, &out->objects[i]);
272 if (!W_ERROR_IS_OK(status)) {
274 DEBUG(0,("Failed to convert object %s: %s\n",
275 cur->object.identifier->dn,
276 win_errstr(status)));
280 if (i != out->num_objects) {
289 WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
290 struct dsdb_extended_replicated_objects *objects,
291 uint64_t *notify_uSN)
293 struct ldb_result *ext_res;
295 uint64_t seq_num1, seq_num2;
297 /* TODO: handle linked attributes */
299 /* wrap the extended operation in a transaction
300 See [MS-DRSR] 3.3.2 Transactions
302 ret = ldb_transaction_start(ldb);
303 if (ret != LDB_SUCCESS) {
304 DEBUG(0,(__location__ " Failed to start transaction\n"));
308 ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num1, NULL);
309 if (ret != LDB_SUCCESS) {
310 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
311 ldb_transaction_cancel(ldb);
315 ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, objects, &ext_res);
316 if (ret != LDB_SUCCESS) {
317 DEBUG(0,("Failed to apply records: %s: %s\n",
318 ldb_errstring(ldb), ldb_strerror(ret)));
319 ldb_transaction_cancel(ldb);
322 talloc_free(ext_res);
324 ret = ldb_transaction_prepare_commit(ldb);
325 if (ret != LDB_SUCCESS) {
326 DEBUG(0,(__location__ " Failed to prepare commit of transaction: %s\n",
327 ldb_errstring(ldb)));
331 ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num2, NULL);
332 if (ret != LDB_SUCCESS) {
333 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
334 ldb_transaction_cancel(ldb);
338 /* if this replication partner didn't need to be notified
339 before this transaction then it still doesn't need to be
340 notified, as the changes came from this server */
341 if (seq_num2 > seq_num1 && seq_num1 <= *notify_uSN) {
342 *notify_uSN = seq_num2;
345 ret = ldb_transaction_commit(ldb);
346 if (ret != LDB_SUCCESS) {
347 DEBUG(0,(__location__ " Failed to commit transaction\n"));
352 DEBUG(2,("Replicated %u objects (%u linked attributes) for %s\n",
353 objects->num_objects, objects->linked_attributes_count,
354 ldb_dn_get_linearized(objects->partition_dn)));
359 static WERROR dsdb_origin_object_convert(struct ldb_context *ldb,
360 const struct dsdb_schema *schema,
361 const struct drsuapi_DsReplicaObjectListItem *in,
363 struct ldb_message **_msg)
367 struct ldb_message *msg;
369 if (!in->object.identifier) {
373 if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
377 msg = ldb_msg_new(mem_ctx);
378 W_ERROR_HAVE_NO_MEMORY(msg);
380 msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
381 W_ERROR_HAVE_NO_MEMORY(msg->dn);
383 msg->num_elements = in->object.attribute_ctr.num_attributes;
384 msg->elements = talloc_array(msg, struct ldb_message_element,
386 W_ERROR_HAVE_NO_MEMORY(msg->elements);
388 for (i=0; i < msg->num_elements; i++) {
389 struct drsuapi_DsReplicaAttribute *a;
390 struct ldb_message_element *e;
392 a = &in->object.attribute_ctr.attributes[i];
393 e = &msg->elements[i];
395 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, a, msg->elements, e);
396 W_ERROR_NOT_OK_RETURN(status);
405 WERROR dsdb_origin_objects_commit(struct ldb_context *ldb,
407 const struct drsuapi_DsReplicaObjectListItem *first_object,
409 struct drsuapi_DsReplicaObjectIdentifier2 **_ids)
412 const struct dsdb_schema *schema;
413 const struct drsuapi_DsReplicaObjectListItem *cur;
414 struct ldb_message **objects;
415 struct drsuapi_DsReplicaObjectIdentifier2 *ids;
417 uint32_t num_objects = 0;
418 const char * const attrs[] = {
423 struct ldb_result *res;
426 for (cur = first_object; cur; cur = cur->next_object) {
430 if (num_objects == 0) {
434 ret = ldb_transaction_start(ldb);
435 if (ret != LDB_SUCCESS) {
436 return WERR_DS_INTERNAL_FAILURE;
439 objects = talloc_array(mem_ctx, struct ldb_message *,
441 if (objects == NULL) {
446 schema = dsdb_get_schema(ldb, objects);
448 return WERR_DS_SCHEMA_NOT_LOADED;
451 for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
452 status = dsdb_origin_object_convert(ldb, schema, cur,
453 objects, &objects[i]);
454 if (!W_ERROR_IS_OK(status)) {
459 ids = talloc_array(mem_ctx,
460 struct drsuapi_DsReplicaObjectIdentifier2,
467 for (i=0; i < num_objects; i++) {
468 struct dom_sid *sid = NULL;
469 struct ldb_request *add_req;
471 DEBUG(6,(__location__ ": adding %s\n",
472 ldb_dn_get_linearized(objects[i]->dn)));
474 ret = ldb_build_add_req(&add_req,
480 ldb_op_default_callback,
482 if (ret != LDB_SUCCESS) {
483 status = WERR_DS_INTERNAL_FAILURE;
487 ret = ldb_request_add_control(add_req, LDB_CONTROL_RELAX_OID, true, NULL);
488 if (ret != LDB_SUCCESS) {
489 status = WERR_DS_INTERNAL_FAILURE;
493 ret = ldb_request(ldb, add_req);
494 if (ret == LDB_SUCCESS) {
495 ret = ldb_wait(add_req->handle, LDB_WAIT_ALL);
497 if (ret != LDB_SUCCESS) {
498 DEBUG(0,(__location__ ": Failed add of %s - %s\n",
499 ldb_dn_get_linearized(objects[i]->dn), ldb_errstring(ldb)));
500 status = WERR_DS_INTERNAL_FAILURE;
504 talloc_free(add_req);
506 ret = ldb_search(ldb, objects, &res, objects[i]->dn,
507 LDB_SCOPE_BASE, attrs,
509 if (ret != LDB_SUCCESS) {
510 status = WERR_DS_INTERNAL_FAILURE;
513 ids[i].guid = samdb_result_guid(res->msgs[0], "objectGUID");
514 sid = samdb_result_dom_sid(objects, res->msgs[0], "objectSid");
518 ZERO_STRUCT(ids[i].sid);
522 ret = ldb_transaction_commit(ldb);
523 if (ret != LDB_SUCCESS) {
524 return WERR_DS_INTERNAL_FAILURE;
527 talloc_free(objects);
534 talloc_free(objects);
535 ldb_transaction_cancel(ldb);