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 static 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)
42 enum ndr_err_code ndr_err;
45 struct ldb_message *msg;
46 struct replPropertyMetaDataBlob *md;
47 struct ldb_val guid_value;
48 NTTIME whenChanged = 0;
50 const char *whenChanged_s;
51 const char *rdn_name = NULL;
52 const struct ldb_val *rdn_value = NULL;
53 const struct dsdb_attribute *rdn_attr = NULL;
55 struct drsuapi_DsReplicaAttribute *name_a = NULL;
56 struct drsuapi_DsReplicaMetaData *name_d = NULL;
57 struct replPropertyMetaData1 *rdn_m = NULL;
58 struct dom_sid *sid = NULL;
62 if (!in->object.identifier) {
66 if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
70 if (in->object.attribute_ctr.num_attributes != 0 && !in->meta_data_ctr) {
74 if (in->object.attribute_ctr.num_attributes != in->meta_data_ctr->count) {
78 sid = &in->object.identifier->sid;
79 if (sid->num_auths > 0) {
80 rid = sid->sub_auths[sid->num_auths - 1];
83 msg = ldb_msg_new(mem_ctx);
84 W_ERROR_HAVE_NO_MEMORY(msg);
86 msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
87 W_ERROR_HAVE_NO_MEMORY(msg->dn);
89 rdn_name = ldb_dn_get_rdn_name(msg->dn);
90 rdn_attr = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
94 rdn_attid = rdn_attr->attributeID_id;
95 rdn_value = ldb_dn_get_rdn_val(msg->dn);
97 msg->num_elements = in->object.attribute_ctr.num_attributes;
98 msg->elements = talloc_array(msg, struct ldb_message_element,
100 W_ERROR_HAVE_NO_MEMORY(msg->elements);
102 md = talloc(mem_ctx, struct replPropertyMetaDataBlob);
103 W_ERROR_HAVE_NO_MEMORY(md);
107 md->ctr.ctr1.count = in->meta_data_ctr->count;
108 md->ctr.ctr1.reserved = 0;
109 md->ctr.ctr1.array = talloc_array(mem_ctx,
110 struct replPropertyMetaData1,
111 md->ctr.ctr1.count + 1); /* +1 because of the RDN attribute */
112 W_ERROR_HAVE_NO_MEMORY(md->ctr.ctr1.array);
114 for (i=0; i < in->meta_data_ctr->count; i++) {
115 struct drsuapi_DsReplicaAttribute *a;
116 struct drsuapi_DsReplicaMetaData *d;
117 struct replPropertyMetaData1 *m;
118 struct ldb_message_element *e;
121 a = &in->object.attribute_ctr.attributes[i];
122 d = &in->meta_data_ctr->meta_data[i];
123 m = &md->ctr.ctr1.array[i];
124 e = &msg->elements[i];
126 for (j=0; j<a->value_ctr.num_values; j++) {
127 status = drsuapi_decrypt_attribute(a->value_ctr.values[j].blob, gensec_skey, rid, a);
128 W_ERROR_NOT_OK_RETURN(status);
131 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, a, msg->elements, e);
132 if (!NT_STATUS_IS_OK(status) && a->value_ctr.num_values == 0) {
133 /* w2k8-r2 occasionally sends bogus empty
134 attributes with rubbish attribute IDs. The
135 only think we can do is discard these */
136 DEBUG(0,(__location__ ": Discarding bogus empty DsReplicaAttribute with attid 0x%x\n",
141 W_ERROR_NOT_OK_RETURN(status);
144 m->version = d->version;
145 m->originating_change_time = d->originating_change_time;
146 m->originating_invocation_id = d->originating_invocation_id;
147 m->originating_usn = d->originating_usn;
150 if (d->originating_change_time > whenChanged) {
151 whenChanged = d->originating_change_time;
154 if (a->attid == DRSUAPI_ATTRIBUTE_name) {
157 rdn_m = &md->ctr.ctr1.array[md->ctr.ctr1.count];
161 /* delete any empty elements */
162 for (i=0; i < msg->num_elements; i++) {
163 if (msg->elements[i].name == NULL) {
164 ldb_msg_remove_element(msg, &msg->elements[i]);
170 struct ldb_message_element *el;
171 el = ldb_msg_find_element(msg, rdn_attr->lDAPDisplayName);
173 ret = ldb_msg_add_value(msg, rdn_attr->lDAPDisplayName, rdn_value, NULL);
174 if (ret != LDB_SUCCESS) {
178 if (el->num_values != 1) {
179 DEBUG(0,(__location__ ": Unexpected num_values=%u\n",
183 if (!ldb_val_equal_exact(&el->values[0], rdn_value)) {
184 DEBUG(0,(__location__ ": RDN value changed? '%*.*s' '%*.*s'\n",
185 (int)el->values[0].length, (int)el->values[0].length, el->values[0].data,
186 (int)rdn_value->length, (int)rdn_value->length, rdn_value->data));
191 rdn_m->attid = rdn_attid;
192 rdn_m->version = name_d->version;
193 rdn_m->originating_change_time = name_d->originating_change_time;
194 rdn_m->originating_invocation_id = name_d->originating_invocation_id;
195 rdn_m->originating_usn = name_d->originating_usn;
196 rdn_m->local_usn = 0;
197 md->ctr.ctr1.count++;
201 whenChanged_t = nt_time_to_unix(whenChanged);
202 whenChanged_s = ldb_timestring(msg, whenChanged_t);
203 W_ERROR_HAVE_NO_MEMORY(whenChanged_s);
205 ndr_err = ndr_push_struct_blob(&guid_value, msg,
206 lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
207 &in->object.identifier->guid,
208 (ndr_push_flags_fn_t)ndr_push_GUID);
209 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
210 nt_status = ndr_map_error2ntstatus(ndr_err);
211 return ntstatus_to_werror(nt_status);
215 out->guid_value = guid_value;
216 out->when_changed = whenChanged_s;
221 WERROR dsdb_extended_replicated_objects_convert(struct ldb_context *ldb,
222 const char *partition_dn,
223 const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr,
224 uint32_t object_count,
225 const struct drsuapi_DsReplicaObjectListItemEx *first_object,
226 uint32_t linked_attributes_count,
227 const struct drsuapi_DsReplicaLinkedAttribute *linked_attributes,
228 const struct repsFromTo1 *source_dsa,
229 const struct drsuapi_DsReplicaCursor2CtrEx *uptodateness_vector,
230 const DATA_BLOB *gensec_skey,
232 struct dsdb_extended_replicated_objects **objects)
235 const struct dsdb_schema *schema;
236 struct dsdb_extended_replicated_objects *out;
237 const struct drsuapi_DsReplicaObjectListItemEx *cur;
240 schema = dsdb_get_schema(ldb);
242 return WERR_DS_SCHEMA_NOT_LOADED;
245 status = dsdb_schema_pfm_contains_drsuapi_pfm(schema->prefixmap, mapping_ctr);
246 W_ERROR_NOT_OK_RETURN(status);
248 out = talloc_zero(mem_ctx, struct dsdb_extended_replicated_objects);
249 W_ERROR_HAVE_NO_MEMORY(out);
250 out->version = DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION;
252 out->partition_dn = ldb_dn_new(out, ldb, partition_dn);
253 W_ERROR_HAVE_NO_MEMORY(out->partition_dn);
255 out->source_dsa = source_dsa;
256 out->uptodateness_vector= uptodateness_vector;
258 out->num_objects = object_count;
259 out->objects = talloc_array(out,
260 struct dsdb_extended_replicated_object,
262 W_ERROR_HAVE_NO_MEMORY(out->objects);
264 /* pass the linked attributes down to the repl_meta_data
266 out->linked_attributes_count = linked_attributes_count;
267 out->linked_attributes = linked_attributes;
269 for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
270 if (i == out->num_objects) {
274 status = dsdb_convert_object_ex(ldb, schema,
276 out->objects, &out->objects[i]);
277 if (!W_ERROR_IS_OK(status)) {
278 DEBUG(0,("Failed to convert object %s\n", cur->object.identifier->dn));
282 if (i != out->num_objects) {
290 WERROR dsdb_extended_replicated_objects_commit(struct ldb_context *ldb,
291 struct dsdb_extended_replicated_objects *objects,
292 uint64_t *notify_uSN)
294 struct ldb_result *ext_res;
296 uint64_t seq_num1, seq_num2;
298 /* TODO: handle linked attributes */
300 /* wrap the extended operation in a transaction
301 See [MS-DRSR] 3.3.2 Transactions
303 ret = ldb_transaction_start(ldb);
304 if (ret != LDB_SUCCESS) {
305 DEBUG(0,(__location__ " Failed to start transaction\n"));
309 ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num1);
310 if (ret != LDB_SUCCESS) {
311 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
312 ldb_transaction_cancel(ldb);
316 ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, objects, &ext_res);
317 if (ret != LDB_SUCCESS) {
318 DEBUG(0,("Failed to apply records: %s: %s\n",
319 ldb_errstring(ldb), ldb_strerror(ret)));
320 ldb_transaction_cancel(ldb);
323 talloc_free(ext_res);
325 ret = ldb_transaction_prepare_commit(ldb);
326 if (ret != LDB_SUCCESS) {
327 DEBUG(0,(__location__ " Failed to prepare commit of transaction\n"));
331 ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num2);
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_convert_object(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 schema = dsdb_get_schema(ldb);
428 return WERR_DS_SCHEMA_NOT_LOADED;
431 for (cur = first_object; cur; cur = cur->next_object) {
435 if (num_objects == 0) {
439 ret = ldb_transaction_start(ldb);
440 if (ret != LDB_SUCCESS) {
441 return WERR_DS_INTERNAL_FAILURE;
444 objects = talloc_array(mem_ctx, struct ldb_message *,
446 if (objects == NULL) {
451 for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
452 status = dsdb_convert_object(ldb, schema,
453 cur, 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);