4 Copyright (C) Simo Sorce 2004-2008
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
8 Copyright (C) Matthieu Patou <mat@samba.org> 2010
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 * Component: ldb repl_meta_data module
29 * Description: - add a unique objectGUID onto every new record,
30 * - handle whenCreated, whenChanged timestamps
31 * - handle uSNCreated, uSNChanged numbers
32 * - handle replPropertyMetaData attribute
35 * Author: Stefan Metzmacher
39 #include "ldb_module.h"
40 #include "dsdb/samdb/samdb.h"
41 #include "dsdb/common/proto.h"
42 #include "../libds/common/flags.h"
43 #include "librpc/gen_ndr/ndr_misc.h"
44 #include "librpc/gen_ndr/ndr_drsuapi.h"
45 #include "librpc/gen_ndr/ndr_drsblobs.h"
46 #include "param/param.h"
47 #include "libcli/security/security.h"
48 #include "lib/util/dlinklist.h"
49 #include "dsdb/samdb/ldb_modules/util.h"
50 #include "lib/util/binsearch.h"
51 #include "libcli/security/session.h"
52 #include "lib/util/tsort.h"
54 struct replmd_private {
56 struct la_entry *la_list;
58 struct la_backlink *la_backlinks;
60 struct nc_entry *prev, *next;
63 uint64_t mod_usn_urgent;
68 struct la_entry *next, *prev;
69 struct drsuapi_DsReplicaLinkedAttribute *la;
72 struct replmd_replicated_request {
73 struct ldb_module *module;
74 struct ldb_request *req;
76 const struct dsdb_schema *schema;
78 /* the controls we pass down */
79 struct ldb_control **controls;
81 /* details for the mode where we apply a bunch of inbound replication meessages */
83 uint32_t index_current;
84 struct dsdb_extended_replicated_objects *objs;
86 struct ldb_message *search_msg;
92 enum urgent_situation {
93 REPL_URGENT_ON_CREATE = 1,
94 REPL_URGENT_ON_UPDATE = 2,
95 REPL_URGENT_ON_DELETE = 4
100 const char *update_name;
101 enum urgent_situation repl_situation;
102 } urgent_objects[] = {
103 {"nTDSDSA", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_DELETE)},
104 {"crossRef", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_DELETE)},
105 {"attributeSchema", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_UPDATE)},
106 {"classSchema", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_UPDATE)},
107 {"secret", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_UPDATE)},
108 {"rIDManager", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_UPDATE)},
112 /* Attributes looked for when updating or deleting, to check for a urgent replication needed */
113 static const char *urgent_attrs[] = {
116 "userAccountControl",
121 static bool replmd_check_urgent_objectclass(const struct ldb_message_element *objectclass_el,
122 enum urgent_situation situation)
125 for (i=0; urgent_objects[i].update_name; i++) {
127 if ((situation & urgent_objects[i].repl_situation) == 0) {
131 for (j=0; j<objectclass_el->num_values; j++) {
132 const struct ldb_val *v = &objectclass_el->values[j];
133 if (ldb_attr_cmp((const char *)v->data, urgent_objects[i].update_name) == 0) {
141 static bool replmd_check_urgent_attribute(const struct ldb_message_element *el)
143 if (ldb_attr_in_list(urgent_attrs, el->name)) {
150 static int replmd_replicated_apply_next(struct replmd_replicated_request *ar);
153 initialise the module
154 allocate the private structure and build the list
155 of partition DNs for use by replmd_notify()
157 static int replmd_init(struct ldb_module *module)
159 struct replmd_private *replmd_private;
160 struct ldb_context *ldb = ldb_module_get_ctx(module);
162 replmd_private = talloc_zero(module, struct replmd_private);
163 if (replmd_private == NULL) {
165 return LDB_ERR_OPERATIONS_ERROR;
167 ldb_module_set_private(module, replmd_private);
169 return ldb_next_init(module);
173 cleanup our per-transaction contexts
175 static void replmd_txn_cleanup(struct replmd_private *replmd_private)
177 talloc_free(replmd_private->la_ctx);
178 replmd_private->la_list = NULL;
179 replmd_private->la_ctx = NULL;
181 talloc_free(replmd_private->bl_ctx);
182 replmd_private->la_backlinks = NULL;
183 replmd_private->bl_ctx = NULL;
188 struct la_backlink *next, *prev;
189 const char *attr_name;
190 struct GUID forward_guid, target_guid;
195 process a backlinks we accumulated during a transaction, adding and
196 deleting the backlinks from the target objects
198 static int replmd_process_backlink(struct ldb_module *module, struct la_backlink *bl)
200 struct ldb_dn *target_dn, *source_dn;
202 struct ldb_context *ldb = ldb_module_get_ctx(module);
203 struct ldb_message *msg;
204 TALLOC_CTX *tmp_ctx = talloc_new(bl);
210 - construct ldb_message
211 - either an add or a delete
213 ret = dsdb_module_dn_by_guid(module, tmp_ctx, &bl->target_guid, &target_dn);
214 if (ret != LDB_SUCCESS) {
215 DEBUG(2,(__location__ ": WARNING: Failed to find target DN for linked attribute with GUID %s\n",
216 GUID_string(bl, &bl->target_guid)));
220 ret = dsdb_module_dn_by_guid(module, tmp_ctx, &bl->forward_guid, &source_dn);
221 if (ret != LDB_SUCCESS) {
222 ldb_asprintf_errstring(ldb, "Failed to find source DN for linked attribute with GUID %s\n",
223 GUID_string(bl, &bl->forward_guid));
224 talloc_free(tmp_ctx);
228 msg = ldb_msg_new(tmp_ctx);
230 ldb_module_oom(module);
231 talloc_free(tmp_ctx);
232 return LDB_ERR_OPERATIONS_ERROR;
235 /* construct a ldb_message for adding/deleting the backlink */
237 dn_string = ldb_dn_get_extended_linearized(tmp_ctx, source_dn, 1);
239 ldb_module_oom(module);
240 talloc_free(tmp_ctx);
241 return LDB_ERR_OPERATIONS_ERROR;
243 ret = ldb_msg_add_steal_string(msg, bl->attr_name, dn_string);
244 if (ret != LDB_SUCCESS) {
245 talloc_free(tmp_ctx);
248 msg->elements[0].flags = bl->active?LDB_FLAG_MOD_ADD:LDB_FLAG_MOD_DELETE;
250 ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE);
251 if (ret != LDB_SUCCESS) {
252 ldb_asprintf_errstring(ldb, "Failed to %s backlink from %s to %s - %s",
253 bl->active?"add":"remove",
254 ldb_dn_get_linearized(source_dn),
255 ldb_dn_get_linearized(target_dn),
257 talloc_free(tmp_ctx);
260 talloc_free(tmp_ctx);
265 add a backlink to the list of backlinks to add/delete in the prepare
268 static int replmd_add_backlink(struct ldb_module *module, const struct dsdb_schema *schema,
269 struct GUID *forward_guid, struct GUID *target_guid,
270 bool active, const struct dsdb_attribute *schema_attr, bool immediate)
272 const struct dsdb_attribute *target_attr;
273 struct la_backlink *bl;
274 struct replmd_private *replmd_private =
275 talloc_get_type_abort(ldb_module_get_private(module), struct replmd_private);
277 target_attr = dsdb_attribute_by_linkID(schema, schema_attr->linkID ^ 1);
280 * windows 2003 has a broken schema where the
281 * definition of msDS-IsDomainFor is missing (which is
282 * supposed to be the backlink of the
283 * msDS-HasDomainNCs attribute
288 /* see if its already in the list */
289 for (bl=replmd_private->la_backlinks; bl; bl=bl->next) {
290 if (GUID_equal(forward_guid, &bl->forward_guid) &&
291 GUID_equal(target_guid, &bl->target_guid) &&
292 (target_attr->lDAPDisplayName == bl->attr_name ||
293 strcmp(target_attr->lDAPDisplayName, bl->attr_name) == 0)) {
299 /* we found an existing one */
300 if (bl->active == active) {
303 DLIST_REMOVE(replmd_private->la_backlinks, bl);
308 if (replmd_private->bl_ctx == NULL) {
309 replmd_private->bl_ctx = talloc_new(replmd_private);
310 if (replmd_private->bl_ctx == NULL) {
311 ldb_module_oom(module);
312 return LDB_ERR_OPERATIONS_ERROR;
317 bl = talloc(replmd_private->bl_ctx, struct la_backlink);
319 ldb_module_oom(module);
320 return LDB_ERR_OPERATIONS_ERROR;
323 /* Ensure the schema does not go away before the bl->attr_name is used */
324 if (!talloc_reference(bl, schema)) {
326 ldb_module_oom(module);
327 return LDB_ERR_OPERATIONS_ERROR;
330 bl->attr_name = target_attr->lDAPDisplayName;
331 bl->forward_guid = *forward_guid;
332 bl->target_guid = *target_guid;
335 /* the caller may ask for this backlink to be processed
338 int ret = replmd_process_backlink(module, bl);
343 DLIST_ADD(replmd_private->la_backlinks, bl);
350 * Callback for most write operations in this module:
352 * notify the repl task that a object has changed. The notifies are
353 * gathered up in the replmd_private structure then written to the
354 * @REPLCHANGED object in each partition during the prepare_commit
356 static int replmd_op_callback(struct ldb_request *req, struct ldb_reply *ares)
359 struct replmd_replicated_request *ac =
360 talloc_get_type_abort(req->context, struct replmd_replicated_request);
361 struct replmd_private *replmd_private =
362 talloc_get_type_abort(ldb_module_get_private(ac->module), struct replmd_private);
363 struct nc_entry *modified_partition;
364 struct ldb_control *partition_ctrl;
365 const struct dsdb_control_current_partition *partition;
367 struct ldb_control **controls;
369 partition_ctrl = ldb_reply_get_control(ares, DSDB_CONTROL_CURRENT_PARTITION_OID);
371 /* Remove the 'partition' control from what we pass up the chain */
372 controls = controls_except_specified(ares->controls, ares, partition_ctrl);
374 if (ares->error != LDB_SUCCESS) {
375 return ldb_module_done(ac->req, controls,
376 ares->response, ares->error);
379 if (ares->type != LDB_REPLY_DONE) {
380 ldb_set_errstring(ldb_module_get_ctx(ac->module), "Invalid reply type for notify\n!");
381 return ldb_module_done(ac->req, NULL,
382 NULL, LDB_ERR_OPERATIONS_ERROR);
385 if (!partition_ctrl) {
386 ldb_set_errstring(ldb_module_get_ctx(ac->module),"No partition control on reply");
387 return ldb_module_done(ac->req, NULL,
388 NULL, LDB_ERR_OPERATIONS_ERROR);
391 partition = talloc_get_type_abort(partition_ctrl->data,
392 struct dsdb_control_current_partition);
394 if (ac->seq_num > 0) {
395 for (modified_partition = replmd_private->ncs; modified_partition;
396 modified_partition = modified_partition->next) {
397 if (ldb_dn_compare(modified_partition->dn, partition->dn) == 0) {
402 if (modified_partition == NULL) {
403 modified_partition = talloc_zero(replmd_private, struct nc_entry);
404 if (!modified_partition) {
405 ldb_oom(ldb_module_get_ctx(ac->module));
406 return ldb_module_done(ac->req, NULL,
407 NULL, LDB_ERR_OPERATIONS_ERROR);
409 modified_partition->dn = ldb_dn_copy(modified_partition, partition->dn);
410 if (!modified_partition->dn) {
411 ldb_oom(ldb_module_get_ctx(ac->module));
412 return ldb_module_done(ac->req, NULL,
413 NULL, LDB_ERR_OPERATIONS_ERROR);
415 DLIST_ADD(replmd_private->ncs, modified_partition);
418 if (ac->seq_num > modified_partition->mod_usn) {
419 modified_partition->mod_usn = ac->seq_num;
421 modified_partition->mod_usn_urgent = ac->seq_num;
426 if (ac->apply_mode) {
430 ret = replmd_replicated_apply_next(ac);
431 if (ret != LDB_SUCCESS) {
432 return ldb_module_done(ac->req, NULL, NULL, ret);
436 /* free the partition control container here, for the
437 * common path. Other cases will have it cleaned up
438 * eventually with the ares */
439 talloc_free(partition_ctrl);
440 return ldb_module_done(ac->req,
441 controls_except_specified(controls, ares, partition_ctrl),
442 ares->response, LDB_SUCCESS);
448 * update a @REPLCHANGED record in each partition if there have been
449 * any writes of replicated data in the partition
451 static int replmd_notify_store(struct ldb_module *module)
453 struct replmd_private *replmd_private =
454 talloc_get_type(ldb_module_get_private(module), struct replmd_private);
456 while (replmd_private->ncs) {
458 struct nc_entry *modified_partition = replmd_private->ncs;
460 ret = dsdb_module_save_partition_usn(module, modified_partition->dn,
461 modified_partition->mod_usn,
462 modified_partition->mod_usn_urgent);
463 if (ret != LDB_SUCCESS) {
464 DEBUG(0,(__location__ ": Failed to save partition uSN for %s\n",
465 ldb_dn_get_linearized(modified_partition->dn)));
468 DLIST_REMOVE(replmd_private->ncs, modified_partition);
469 talloc_free(modified_partition);
477 created a replmd_replicated_request context
479 static struct replmd_replicated_request *replmd_ctx_init(struct ldb_module *module,
480 struct ldb_request *req)
482 struct ldb_context *ldb;
483 struct replmd_replicated_request *ac;
485 ldb = ldb_module_get_ctx(module);
487 ac = talloc_zero(req, struct replmd_replicated_request);
496 ac->schema = dsdb_get_schema(ldb, ac);
498 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
499 "replmd_modify: no dsdb_schema loaded");
500 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
508 add a time element to a record
510 static int add_time_element(struct ldb_message *msg, const char *attr, time_t t)
512 struct ldb_message_element *el;
516 if (ldb_msg_find_element(msg, attr) != NULL) {
520 s = ldb_timestring(msg, t);
522 return LDB_ERR_OPERATIONS_ERROR;
525 ret = ldb_msg_add_string(msg, attr, s);
526 if (ret != LDB_SUCCESS) {
530 el = ldb_msg_find_element(msg, attr);
531 /* always set as replace. This works because on add ops, the flag
533 el->flags = LDB_FLAG_MOD_REPLACE;
539 add a uint64_t element to a record
541 static int add_uint64_element(struct ldb_context *ldb, struct ldb_message *msg,
542 const char *attr, uint64_t v)
544 struct ldb_message_element *el;
547 if (ldb_msg_find_element(msg, attr) != NULL) {
551 ret = samdb_msg_add_uint64(ldb, msg, msg, attr, v);
552 if (ret != LDB_SUCCESS) {
556 el = ldb_msg_find_element(msg, attr);
557 /* always set as replace. This works because on add ops, the flag
559 el->flags = LDB_FLAG_MOD_REPLACE;
564 static int replmd_replPropertyMetaData1_attid_sort(const struct replPropertyMetaData1 *m1,
565 const struct replPropertyMetaData1 *m2,
566 const uint32_t *rdn_attid)
568 if (m1->attid == m2->attid) {
573 * the rdn attribute should be at the end!
574 * so we need to return a value greater than zero
575 * which means m1 is greater than m2
577 if (m1->attid == *rdn_attid) {
582 * the rdn attribute should be at the end!
583 * so we need to return a value less than zero
584 * which means m2 is greater than m1
586 if (m2->attid == *rdn_attid) {
590 return m1->attid > m2->attid ? 1 : -1;
593 static int replmd_replPropertyMetaDataCtr1_sort(struct replPropertyMetaDataCtr1 *ctr1,
594 const struct dsdb_schema *schema,
597 const char *rdn_name;
598 const struct dsdb_attribute *rdn_sa;
600 rdn_name = ldb_dn_get_rdn_name(dn);
602 DEBUG(0,(__location__ ": No rDN for %s?\n", ldb_dn_get_linearized(dn)));
603 return LDB_ERR_OPERATIONS_ERROR;
606 rdn_sa = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
607 if (rdn_sa == NULL) {
608 DEBUG(0,(__location__ ": No sa found for rDN %s for %s\n", rdn_name, ldb_dn_get_linearized(dn)));
609 return LDB_ERR_OPERATIONS_ERROR;
612 DEBUG(6,("Sorting rpmd with attid exception %u rDN=%s DN=%s\n",
613 rdn_sa->attributeID_id, rdn_name, ldb_dn_get_linearized(dn)));
615 LDB_TYPESAFE_QSORT(ctr1->array, ctr1->count, &rdn_sa->attributeID_id, replmd_replPropertyMetaData1_attid_sort);
620 static int replmd_ldb_message_element_attid_sort(const struct ldb_message_element *e1,
621 const struct ldb_message_element *e2,
622 const struct dsdb_schema *schema)
624 const struct dsdb_attribute *a1;
625 const struct dsdb_attribute *a2;
628 * TODO: make this faster by caching the dsdb_attribute pointer
629 * on the ldb_messag_element
632 a1 = dsdb_attribute_by_lDAPDisplayName(schema, e1->name);
633 a2 = dsdb_attribute_by_lDAPDisplayName(schema, e2->name);
636 * TODO: remove this check, we should rely on e1 and e2 having valid attribute names
640 return strcasecmp(e1->name, e2->name);
642 if (a1->attributeID_id == a2->attributeID_id) {
645 return a1->attributeID_id > a2->attributeID_id ? 1 : -1;
648 static void replmd_ldb_message_sort(struct ldb_message *msg,
649 const struct dsdb_schema *schema)
651 LDB_TYPESAFE_QSORT(msg->elements, msg->num_elements, schema, replmd_ldb_message_element_attid_sort);
654 static int replmd_build_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
655 const struct GUID *invocation_id, uint64_t seq_num,
656 uint64_t local_usn, NTTIME nttime, uint32_t version, bool deleted);
660 fix up linked attributes in replmd_add.
661 This involves setting up the right meta-data in extended DN
662 components, and creating backlinks to the object
664 static int replmd_add_fix_la(struct ldb_module *module, struct ldb_message_element *el,
665 uint64_t seq_num, const struct GUID *invocationId, time_t t,
666 struct GUID *guid, const struct dsdb_attribute *sa)
669 TALLOC_CTX *tmp_ctx = talloc_new(el->values);
670 struct ldb_context *ldb = ldb_module_get_ctx(module);
672 /* We will take a reference to the schema in replmd_add_backlink */
673 const struct dsdb_schema *schema = dsdb_get_schema(ldb, NULL);
676 unix_to_nt_time(&now, t);
678 for (i=0; i<el->num_values; i++) {
679 struct ldb_val *v = &el->values[i];
680 struct dsdb_dn *dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, v, sa->syntax->ldap_oid);
681 struct GUID target_guid;
685 /* note that the DN already has the extended
686 components from the extended_dn_store module */
687 status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &target_guid, "GUID");
688 if (!NT_STATUS_IS_OK(status) || GUID_all_zero(&target_guid)) {
689 ret = dsdb_module_guid_by_dn(module, dsdb_dn->dn, &target_guid);
690 if (ret != LDB_SUCCESS) {
691 talloc_free(tmp_ctx);
694 ret = dsdb_set_extended_dn_guid(dsdb_dn->dn, &target_guid, "GUID");
695 if (ret != LDB_SUCCESS) {
696 talloc_free(tmp_ctx);
701 ret = replmd_build_la_val(el->values, v, dsdb_dn, invocationId,
702 seq_num, seq_num, now, 0, false);
703 if (ret != LDB_SUCCESS) {
704 talloc_free(tmp_ctx);
708 ret = replmd_add_backlink(module, schema, guid, &target_guid, true, sa, false);
709 if (ret != LDB_SUCCESS) {
710 talloc_free(tmp_ctx);
715 talloc_free(tmp_ctx);
721 intercept add requests
723 static int replmd_add(struct ldb_module *module, struct ldb_request *req)
725 struct ldb_context *ldb;
726 struct ldb_control *control;
727 struct replmd_replicated_request *ac;
728 enum ndr_err_code ndr_err;
729 struct ldb_request *down_req;
730 struct ldb_message *msg;
731 const DATA_BLOB *guid_blob;
733 struct replPropertyMetaDataBlob nmd;
734 struct ldb_val nmd_value;
735 const struct GUID *our_invocation_id;
736 time_t t = time(NULL);
741 unsigned int functional_level;
743 bool allow_add_guid = false;
744 bool remove_current_guid = false;
745 bool is_urgent = false;
746 struct ldb_message_element *objectclass_el;
748 /* check if there's a show relax control (used by provision to say 'I know what I'm doing') */
749 control = ldb_request_get_control(req, LDB_CONTROL_RELAX_OID);
751 allow_add_guid = true;
754 /* do not manipulate our control entries */
755 if (ldb_dn_is_special(req->op.add.message->dn)) {
756 return ldb_next_request(module, req);
759 ldb = ldb_module_get_ctx(module);
761 functional_level = dsdb_functional_level(ldb);
763 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_add\n");
765 ac = replmd_ctx_init(module, req);
767 return LDB_ERR_OPERATIONS_ERROR;
770 guid_blob = ldb_msg_find_ldb_val(req->op.add.message, "objectGUID");
771 if ( guid_blob != NULL ) {
772 if( !allow_add_guid ) {
773 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
774 "replmd_add: it's not allowed to add an object with objectGUID\n");
776 return LDB_ERR_UNWILLING_TO_PERFORM;
778 NTSTATUS status = GUID_from_data_blob(guid_blob,&guid);
779 if ( !NT_STATUS_IS_OK(status)) {
780 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
781 "replmd_add: Unable to parse as a GUID the attribute objectGUID\n");
783 return LDB_ERR_UNWILLING_TO_PERFORM;
785 /* we remove this attribute as it can be a string and will not be treated
786 correctly and then we will readd it latter on in the good format*/
787 remove_current_guid = true;
791 guid = GUID_random();
794 /* Get a sequence number from the backend */
795 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ac->seq_num);
796 if (ret != LDB_SUCCESS) {
801 /* get our invocationId */
802 our_invocation_id = samdb_ntds_invocation_id(ldb);
803 if (!our_invocation_id) {
804 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
805 "replmd_add: unable to find invocationId\n");
807 return LDB_ERR_OPERATIONS_ERROR;
810 /* we have to copy the message as the caller might have it as a const */
811 msg = ldb_msg_copy_shallow(ac, req->op.add.message);
815 return LDB_ERR_OPERATIONS_ERROR;
818 /* generated times */
819 unix_to_nt_time(&now, t);
820 time_str = ldb_timestring(msg, t);
824 return LDB_ERR_OPERATIONS_ERROR;
826 if (remove_current_guid) {
827 ldb_msg_remove_attr(msg,"objectGUID");
831 * remove autogenerated attributes
833 ldb_msg_remove_attr(msg, "whenCreated");
834 ldb_msg_remove_attr(msg, "whenChanged");
835 ldb_msg_remove_attr(msg, "uSNCreated");
836 ldb_msg_remove_attr(msg, "uSNChanged");
837 ldb_msg_remove_attr(msg, "replPropertyMetaData");
840 * readd replicated attributes
842 ret = ldb_msg_add_string(msg, "whenCreated", time_str);
843 if (ret != LDB_SUCCESS) {
849 /* build the replication meta_data */
852 nmd.ctr.ctr1.count = msg->num_elements;
853 nmd.ctr.ctr1.array = talloc_array(msg,
854 struct replPropertyMetaData1,
856 if (!nmd.ctr.ctr1.array) {
859 return LDB_ERR_OPERATIONS_ERROR;
862 for (i=0; i < msg->num_elements; i++) {
863 struct ldb_message_element *e = &msg->elements[i];
864 struct replPropertyMetaData1 *m = &nmd.ctr.ctr1.array[ni];
865 const struct dsdb_attribute *sa;
867 if (e->name[0] == '@') continue;
869 sa = dsdb_attribute_by_lDAPDisplayName(ac->schema, e->name);
871 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
872 "replmd_add: attribute '%s' not defined in schema\n",
875 return LDB_ERR_NO_SUCH_ATTRIBUTE;
878 if ((sa->systemFlags & DS_FLAG_ATTR_NOT_REPLICATED) || (sa->systemFlags & DS_FLAG_ATTR_IS_CONSTRUCTED)) {
879 /* if the attribute is not replicated (0x00000001)
880 * or constructed (0x00000004) it has no metadata
885 if (sa->linkID != 0 && functional_level > DS_DOMAIN_FUNCTION_2000) {
886 ret = replmd_add_fix_la(module, e, ac->seq_num, our_invocation_id, t, &guid, sa);
887 if (ret != LDB_SUCCESS) {
891 /* linked attributes are not stored in
892 replPropertyMetaData in FL above w2k */
896 m->attid = sa->attributeID_id;
898 m->originating_change_time = now;
899 m->originating_invocation_id = *our_invocation_id;
900 m->originating_usn = ac->seq_num;
901 m->local_usn = ac->seq_num;
905 /* fix meta data count */
906 nmd.ctr.ctr1.count = ni;
909 * sort meta data array, and move the rdn attribute entry to the end
911 ret = replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, ac->schema, msg->dn);
912 if (ret != LDB_SUCCESS) {
917 /* generated NDR encoded values */
918 ndr_err = ndr_push_struct_blob(&nmd_value, msg,
920 (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
921 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
924 return LDB_ERR_OPERATIONS_ERROR;
928 * add the autogenerated values
930 ret = dsdb_msg_add_guid(msg, &guid, "objectGUID");
931 if (ret != LDB_SUCCESS) {
936 ret = ldb_msg_add_string(msg, "whenChanged", time_str);
937 if (ret != LDB_SUCCESS) {
942 ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNCreated", ac->seq_num);
943 if (ret != LDB_SUCCESS) {
948 ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ac->seq_num);
949 if (ret != LDB_SUCCESS) {
954 ret = ldb_msg_add_value(msg, "replPropertyMetaData", &nmd_value, NULL);
955 if (ret != LDB_SUCCESS) {
962 * sort the attributes by attid before storing the object
964 replmd_ldb_message_sort(msg, ac->schema);
966 objectclass_el = ldb_msg_find_element(msg, "objectClass");
967 is_urgent = replmd_check_urgent_objectclass(objectclass_el,
968 REPL_URGENT_ON_CREATE);
970 ac->is_urgent = is_urgent;
971 ret = ldb_build_add_req(&down_req, ldb, ac,
974 ac, replmd_op_callback,
977 LDB_REQ_SET_LOCATION(down_req);
978 if (ret != LDB_SUCCESS) {
983 if (functional_level == DS_DOMAIN_FUNCTION_2000) {
984 ret = ldb_request_add_control(down_req, DSDB_CONTROL_APPLY_LINKS, false, NULL);
985 if (ret != LDB_SUCCESS) {
991 /* mark the control done */
993 control->critical = 0;
996 /* go on with the call chain */
997 return ldb_next_request(module, down_req);
1002 * update the replPropertyMetaData for one element
1004 static int replmd_update_rpmd_element(struct ldb_context *ldb,
1005 struct ldb_message *msg,
1006 struct ldb_message_element *el,
1007 struct ldb_message_element *old_el,
1008 struct replPropertyMetaDataBlob *omd,
1009 const struct dsdb_schema *schema,
1011 const struct GUID *our_invocation_id,
1015 const struct dsdb_attribute *a;
1016 struct replPropertyMetaData1 *md1;
1018 a = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
1020 DEBUG(0,(__location__ ": Unable to find attribute %s in schema\n",
1022 return LDB_ERR_OPERATIONS_ERROR;
1025 if ((a->systemFlags & DS_FLAG_ATTR_NOT_REPLICATED) || (a->systemFlags & DS_FLAG_ATTR_IS_CONSTRUCTED)) {
1029 /* if the attribute's value haven't changed then return LDB_SUCCESS */
1030 if (old_el != NULL && ldb_msg_element_compare(el, old_el) == 0) {
1034 for (i=0; i<omd->ctr.ctr1.count; i++) {
1035 if (a->attributeID_id == omd->ctr.ctr1.array[i].attid) break;
1038 if (a->linkID != 0 && dsdb_functional_level(ldb) > DS_DOMAIN_FUNCTION_2000) {
1039 /* linked attributes are not stored in
1040 replPropertyMetaData in FL above w2k, but we do
1041 raise the seqnum for the object */
1042 if (*seq_num == 0 &&
1043 ldb_sequence_number(ldb, LDB_SEQ_NEXT, seq_num) != LDB_SUCCESS) {
1044 return LDB_ERR_OPERATIONS_ERROR;
1049 if (i == omd->ctr.ctr1.count) {
1050 /* we need to add a new one */
1051 omd->ctr.ctr1.array = talloc_realloc(msg, omd->ctr.ctr1.array,
1052 struct replPropertyMetaData1, omd->ctr.ctr1.count+1);
1053 if (omd->ctr.ctr1.array == NULL) {
1055 return LDB_ERR_OPERATIONS_ERROR;
1057 omd->ctr.ctr1.count++;
1058 ZERO_STRUCT(omd->ctr.ctr1.array[i]);
1061 /* Get a new sequence number from the backend. We only do this
1062 * if we have a change that requires a new
1063 * replPropertyMetaData element
1065 if (*seq_num == 0) {
1066 int ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, seq_num);
1067 if (ret != LDB_SUCCESS) {
1068 return LDB_ERR_OPERATIONS_ERROR;
1072 md1 = &omd->ctr.ctr1.array[i];
1074 md1->attid = a->attributeID_id;
1075 md1->originating_change_time = now;
1076 md1->originating_invocation_id = *our_invocation_id;
1077 md1->originating_usn = *seq_num;
1078 md1->local_usn = *seq_num;
1083 static uint64_t find_max_local_usn(struct replPropertyMetaDataBlob omd)
1085 uint32_t count = omd.ctr.ctr1.count;
1088 for (i=0; i < count; i++) {
1089 struct replPropertyMetaData1 m = omd.ctr.ctr1.array[i];
1090 if (max < m.local_usn) {
1098 * update the replPropertyMetaData object each time we modify an
1099 * object. This is needed for DRS replication, as the merge on the
1100 * client is based on this object
1102 static int replmd_update_rpmd(struct ldb_module *module,
1103 const struct dsdb_schema *schema,
1104 struct ldb_request *req,
1105 struct ldb_message *msg, uint64_t *seq_num,
1109 const struct ldb_val *omd_value;
1110 enum ndr_err_code ndr_err;
1111 struct replPropertyMetaDataBlob omd;
1114 const struct GUID *our_invocation_id;
1116 const char *attrs[] = { "replPropertyMetaData", "*", NULL };
1117 const char *attrs2[] = { "uSNChanged", "objectClass", NULL };
1118 struct ldb_result *res;
1119 struct ldb_context *ldb;
1120 struct ldb_message_element *objectclass_el;
1121 enum urgent_situation situation;
1122 bool rodc, rmd_is_provided;
1124 ldb = ldb_module_get_ctx(module);
1126 our_invocation_id = samdb_ntds_invocation_id(ldb);
1127 if (!our_invocation_id) {
1128 /* this happens during an initial vampire while
1129 updating the schema */
1130 DEBUG(5,("No invocationID - skipping replPropertyMetaData update\n"));
1134 unix_to_nt_time(&now, t);
1136 if (ldb_request_get_control(req, DSDB_CONTROL_CHANGEREPLMETADATA_OID)) {
1137 rmd_is_provided = true;
1139 rmd_is_provided = false;
1142 /* if isDeleted is present and is TRUE, then we consider we are deleting,
1143 * otherwise we consider we are updating */
1144 if (ldb_msg_check_string_attribute(msg, "isDeleted", "TRUE")) {
1145 situation = REPL_URGENT_ON_DELETE;
1147 situation = REPL_URGENT_ON_UPDATE;
1150 if (rmd_is_provided) {
1151 /* In this case the change_replmetadata control was supplied */
1152 /* We check that it's the only attribute that is provided
1153 * (it's a rare case so it's better to keep the code simplier)
1154 * We also check that the highest local_usn is bigger than
1157 if( msg->num_elements != 1 ||
1158 strncmp(msg->elements[0].name,
1159 "replPropertyMetaData", 20) ) {
1160 DEBUG(0,(__location__ ": changereplmetada control called without "\
1161 "a specified replPropertyMetaData attribute or with others\n"));
1162 return LDB_ERR_OPERATIONS_ERROR;
1164 if (situation == REPL_URGENT_ON_DELETE) {
1165 DEBUG(0,(__location__ ": changereplmetada control can't be called when deleting an object\n"));
1166 return LDB_ERR_OPERATIONS_ERROR;
1168 omd_value = ldb_msg_find_ldb_val(msg, "replPropertyMetaData");
1170 DEBUG(0,(__location__ ": replPropertyMetaData was not specified for Object %s\n",
1171 ldb_dn_get_linearized(msg->dn)));
1172 return LDB_ERR_OPERATIONS_ERROR;
1174 ndr_err = ndr_pull_struct_blob(omd_value, msg, &omd,
1175 (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
1176 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1177 DEBUG(0,(__location__ ": Failed to parse replPropertyMetaData for %s\n",
1178 ldb_dn_get_linearized(msg->dn)));
1179 return LDB_ERR_OPERATIONS_ERROR;
1181 *seq_num = find_max_local_usn(omd);
1183 ret = dsdb_module_search_dn(module, msg, &res, msg->dn, attrs2,
1184 DSDB_FLAG_NEXT_MODULE |
1185 DSDB_SEARCH_SHOW_RECYCLED |
1186 DSDB_SEARCH_SHOW_EXTENDED_DN |
1187 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
1188 DSDB_SEARCH_REVEAL_INTERNALS);
1190 if (ret != LDB_SUCCESS || res->count != 1) {
1191 DEBUG(0,(__location__ ": Object %s failed to find uSNChanged\n",
1192 ldb_dn_get_linearized(msg->dn)));
1193 return LDB_ERR_OPERATIONS_ERROR;
1196 objectclass_el = ldb_msg_find_element(res->msgs[0], "objectClass");
1197 if (is_urgent && replmd_check_urgent_objectclass(objectclass_el,
1202 db_seq = ldb_msg_find_attr_as_uint64(res->msgs[0], "uSNChanged", 0);
1203 if (*seq_num <= db_seq) {
1204 DEBUG(0,(__location__ ": changereplmetada control provided but max(local_usn)"\
1205 " is less or equal to uSNChanged (max = %lld uSNChanged = %lld)\n",
1206 (long long)*seq_num, (long long)db_seq));
1207 return LDB_ERR_OPERATIONS_ERROR;
1211 /* search for the existing replPropertyMetaDataBlob. We need
1212 * to use REVEAL and ask for DNs in storage format to support
1213 * the check for values being the same in
1214 * replmd_update_rpmd_element()
1216 ret = dsdb_module_search_dn(module, msg, &res, msg->dn, attrs,
1217 DSDB_FLAG_NEXT_MODULE |
1218 DSDB_SEARCH_SHOW_RECYCLED |
1219 DSDB_SEARCH_SHOW_EXTENDED_DN |
1220 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
1221 DSDB_SEARCH_REVEAL_INTERNALS);
1222 if (ret != LDB_SUCCESS || res->count != 1) {
1223 DEBUG(0,(__location__ ": Object %s failed to find replPropertyMetaData\n",
1224 ldb_dn_get_linearized(msg->dn)));
1225 return LDB_ERR_OPERATIONS_ERROR;
1228 objectclass_el = ldb_msg_find_element(res->msgs[0], "objectClass");
1229 if (is_urgent && replmd_check_urgent_objectclass(objectclass_el,
1234 omd_value = ldb_msg_find_ldb_val(res->msgs[0], "replPropertyMetaData");
1236 DEBUG(0,(__location__ ": Object %s does not have a replPropertyMetaData attribute\n",
1237 ldb_dn_get_linearized(msg->dn)));
1238 return LDB_ERR_OPERATIONS_ERROR;
1241 ndr_err = ndr_pull_struct_blob(omd_value, msg, &omd,
1242 (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
1243 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1244 DEBUG(0,(__location__ ": Failed to parse replPropertyMetaData for %s\n",
1245 ldb_dn_get_linearized(msg->dn)));
1246 return LDB_ERR_OPERATIONS_ERROR;
1249 if (omd.version != 1) {
1250 DEBUG(0,(__location__ ": bad version %u in replPropertyMetaData for %s\n",
1251 omd.version, ldb_dn_get_linearized(msg->dn)));
1252 return LDB_ERR_OPERATIONS_ERROR;
1255 for (i=0; i<msg->num_elements; i++) {
1256 struct ldb_message_element *old_el;
1257 old_el = ldb_msg_find_element(res->msgs[0], msg->elements[i].name);
1258 ret = replmd_update_rpmd_element(ldb, msg, &msg->elements[i], old_el, &omd, schema, seq_num,
1259 our_invocation_id, now);
1260 if (ret != LDB_SUCCESS) {
1264 if (is_urgent && !*is_urgent && (situation == REPL_URGENT_ON_UPDATE)) {
1265 *is_urgent = replmd_check_urgent_attribute(&msg->elements[i]);
1271 * replmd_update_rpmd_element has done an update if the
1274 if (*seq_num != 0) {
1275 struct ldb_val *md_value;
1276 struct ldb_message_element *el;
1278 /*if we are RODC and this is a DRSR update then its ok*/
1279 if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1280 ret = samdb_rodc(ldb, &rodc);
1281 if (ret != LDB_SUCCESS) {
1282 DEBUG(4, (__location__ ": unable to tell if we are an RODC\n"));
1284 ldb_asprintf_errstring(ldb, "RODC modify is forbidden\n");
1285 return LDB_ERR_REFERRAL;
1289 md_value = talloc(msg, struct ldb_val);
1290 if (md_value == NULL) {
1292 return LDB_ERR_OPERATIONS_ERROR;
1295 ret = replmd_replPropertyMetaDataCtr1_sort(&omd.ctr.ctr1, schema, msg->dn);
1296 if (ret != LDB_SUCCESS) {
1300 ndr_err = ndr_push_struct_blob(md_value, msg, &omd,
1301 (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
1302 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1303 DEBUG(0,(__location__ ": Failed to marshall replPropertyMetaData for %s\n",
1304 ldb_dn_get_linearized(msg->dn)));
1305 return LDB_ERR_OPERATIONS_ERROR;
1308 ret = ldb_msg_add_empty(msg, "replPropertyMetaData", LDB_FLAG_MOD_REPLACE, &el);
1309 if (ret != LDB_SUCCESS) {
1310 DEBUG(0,(__location__ ": Failed to add updated replPropertyMetaData %s\n",
1311 ldb_dn_get_linearized(msg->dn)));
1316 el->values = md_value;
1323 struct dsdb_dn *dsdb_dn;
1328 static int parsed_dn_compare(struct parsed_dn *pdn1, struct parsed_dn *pdn2)
1330 return GUID_compare(pdn1->guid, pdn2->guid);
1333 static struct parsed_dn *parsed_dn_find(struct parsed_dn *pdn, int count, struct GUID *guid, struct ldb_dn *dn)
1335 struct parsed_dn *ret;
1336 if (dn && GUID_all_zero(guid)) {
1337 /* when updating a link using DRS, we sometimes get a
1338 NULL GUID. We then need to try and match by DN */
1340 for (i=0; i<count; i++) {
1341 if (ldb_dn_compare(pdn[i].dsdb_dn->dn, dn) == 0) {
1342 dsdb_get_extended_dn_guid(pdn[i].dsdb_dn->dn, guid, "GUID");
1348 BINARY_ARRAY_SEARCH(pdn, count, guid, guid, GUID_compare, ret);
1353 get a series of message element values as an array of DNs and GUIDs
1354 the result is sorted by GUID
1356 static int get_parsed_dns(struct ldb_module *module, TALLOC_CTX *mem_ctx,
1357 struct ldb_message_element *el, struct parsed_dn **pdn,
1358 const char *ldap_oid)
1361 struct ldb_context *ldb = ldb_module_get_ctx(module);
1368 (*pdn) = talloc_array(mem_ctx, struct parsed_dn, el->num_values);
1370 ldb_module_oom(module);
1371 return LDB_ERR_OPERATIONS_ERROR;
1374 for (i=0; i<el->num_values; i++) {
1375 struct ldb_val *v = &el->values[i];
1378 struct parsed_dn *p;
1382 p->dsdb_dn = dsdb_dn_parse(*pdn, ldb, v, ldap_oid);
1383 if (p->dsdb_dn == NULL) {
1384 return LDB_ERR_INVALID_DN_SYNTAX;
1387 dn = p->dsdb_dn->dn;
1389 p->guid = talloc(*pdn, struct GUID);
1390 if (p->guid == NULL) {
1391 ldb_module_oom(module);
1392 return LDB_ERR_OPERATIONS_ERROR;
1395 status = dsdb_get_extended_dn_guid(dn, p->guid, "GUID");
1396 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
1397 /* we got a DN without a GUID - go find the GUID */
1398 int ret = dsdb_module_guid_by_dn(module, dn, p->guid);
1399 if (ret != LDB_SUCCESS) {
1400 ldb_asprintf_errstring(ldb, "Unable to find GUID for DN %s\n",
1401 ldb_dn_get_linearized(dn));
1404 ret = dsdb_set_extended_dn_guid(dn, p->guid, "GUID");
1405 if (ret != LDB_SUCCESS) {
1408 } else if (!NT_STATUS_IS_OK(status)) {
1409 return LDB_ERR_OPERATIONS_ERROR;
1412 /* keep a pointer to the original ldb_val */
1416 TYPESAFE_QSORT(*pdn, el->num_values, parsed_dn_compare);
1422 build a new extended DN, including all meta data fields
1424 RMD_FLAGS = DSDB_RMD_FLAG_* bits
1425 RMD_ADDTIME = originating_add_time
1426 RMD_INVOCID = originating_invocation_id
1427 RMD_CHANGETIME = originating_change_time
1428 RMD_ORIGINATING_USN = originating_usn
1429 RMD_LOCAL_USN = local_usn
1430 RMD_VERSION = version
1432 static int replmd_build_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
1433 const struct GUID *invocation_id, uint64_t seq_num,
1434 uint64_t local_usn, NTTIME nttime, uint32_t version, bool deleted)
1436 struct ldb_dn *dn = dsdb_dn->dn;
1437 const char *tstring, *usn_string, *flags_string;
1438 struct ldb_val tval;
1440 struct ldb_val usnv, local_usnv;
1441 struct ldb_val vers, flagsv;
1444 const char *dnstring;
1446 uint32_t rmd_flags = deleted?DSDB_RMD_FLAG_DELETED:0;
1448 tstring = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)nttime);
1450 return LDB_ERR_OPERATIONS_ERROR;
1452 tval = data_blob_string_const(tstring);
1454 usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)seq_num);
1456 return LDB_ERR_OPERATIONS_ERROR;
1458 usnv = data_blob_string_const(usn_string);
1460 usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)local_usn);
1462 return LDB_ERR_OPERATIONS_ERROR;
1464 local_usnv = data_blob_string_const(usn_string);
1466 vstring = talloc_asprintf(mem_ctx, "%lu", (unsigned long)version);
1468 return LDB_ERR_OPERATIONS_ERROR;
1470 vers = data_blob_string_const(vstring);
1472 status = GUID_to_ndr_blob(invocation_id, dn, &iid);
1473 if (!NT_STATUS_IS_OK(status)) {
1474 return LDB_ERR_OPERATIONS_ERROR;
1477 flags_string = talloc_asprintf(mem_ctx, "%u", rmd_flags);
1478 if (!flags_string) {
1479 return LDB_ERR_OPERATIONS_ERROR;
1481 flagsv = data_blob_string_const(flags_string);
1483 ret = ldb_dn_set_extended_component(dn, "RMD_FLAGS", &flagsv);
1484 if (ret != LDB_SUCCESS) return ret;
1485 ret = ldb_dn_set_extended_component(dn, "RMD_ADDTIME", &tval);
1486 if (ret != LDB_SUCCESS) return ret;
1487 ret = ldb_dn_set_extended_component(dn, "RMD_INVOCID", &iid);
1488 if (ret != LDB_SUCCESS) return ret;
1489 ret = ldb_dn_set_extended_component(dn, "RMD_CHANGETIME", &tval);
1490 if (ret != LDB_SUCCESS) return ret;
1491 ret = ldb_dn_set_extended_component(dn, "RMD_LOCAL_USN", &local_usnv);
1492 if (ret != LDB_SUCCESS) return ret;
1493 ret = ldb_dn_set_extended_component(dn, "RMD_ORIGINATING_USN", &usnv);
1494 if (ret != LDB_SUCCESS) return ret;
1495 ret = ldb_dn_set_extended_component(dn, "RMD_VERSION", &vers);
1496 if (ret != LDB_SUCCESS) return ret;
1498 dnstring = dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1);
1499 if (dnstring == NULL) {
1500 return LDB_ERR_OPERATIONS_ERROR;
1502 *v = data_blob_string_const(dnstring);
1507 static int replmd_update_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
1508 struct dsdb_dn *old_dsdb_dn, const struct GUID *invocation_id,
1509 uint64_t seq_num, uint64_t local_usn, NTTIME nttime,
1510 uint32_t version, bool deleted);
1513 check if any links need upgrading from w2k format
1515 The parent_ctx is the ldb_message_element which contains the values array that dns[i].v points at, and which should be used for allocating any new value.
1517 static int replmd_check_upgrade_links(struct parsed_dn *dns, uint32_t count, struct ldb_message_element *parent_ctx, const struct GUID *invocation_id)
1520 for (i=0; i<count; i++) {
1525 status = dsdb_get_extended_dn_uint32(dns[i].dsdb_dn->dn, &version, "RMD_VERSION");
1526 if (!NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
1530 /* it's an old one that needs upgrading */
1531 ret = replmd_update_la_val(parent_ctx->values, dns[i].v, dns[i].dsdb_dn, dns[i].dsdb_dn, invocation_id,
1533 if (ret != LDB_SUCCESS) {
1541 update an extended DN, including all meta data fields
1543 see replmd_build_la_val for value names
1545 static int replmd_update_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
1546 struct dsdb_dn *old_dsdb_dn, const struct GUID *invocation_id,
1547 uint64_t seq_num, uint64_t local_usn, NTTIME nttime,
1548 uint32_t version, bool deleted)
1550 struct ldb_dn *dn = dsdb_dn->dn;
1551 const char *tstring, *usn_string, *flags_string;
1552 struct ldb_val tval;
1554 struct ldb_val usnv, local_usnv;
1555 struct ldb_val vers, flagsv;
1556 const struct ldb_val *old_addtime;
1557 uint32_t old_version;
1560 const char *dnstring;
1562 uint32_t rmd_flags = deleted?DSDB_RMD_FLAG_DELETED:0;
1564 tstring = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)nttime);
1566 return LDB_ERR_OPERATIONS_ERROR;
1568 tval = data_blob_string_const(tstring);
1570 usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)seq_num);
1572 return LDB_ERR_OPERATIONS_ERROR;
1574 usnv = data_blob_string_const(usn_string);
1576 usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)local_usn);
1578 return LDB_ERR_OPERATIONS_ERROR;
1580 local_usnv = data_blob_string_const(usn_string);
1582 status = GUID_to_ndr_blob(invocation_id, dn, &iid);
1583 if (!NT_STATUS_IS_OK(status)) {
1584 return LDB_ERR_OPERATIONS_ERROR;
1587 flags_string = talloc_asprintf(mem_ctx, "%u", rmd_flags);
1588 if (!flags_string) {
1589 return LDB_ERR_OPERATIONS_ERROR;
1591 flagsv = data_blob_string_const(flags_string);
1593 ret = ldb_dn_set_extended_component(dn, "RMD_FLAGS", &flagsv);
1594 if (ret != LDB_SUCCESS) return ret;
1596 /* get the ADDTIME from the original */
1597 old_addtime = ldb_dn_get_extended_component(old_dsdb_dn->dn, "RMD_ADDTIME");
1598 if (old_addtime == NULL) {
1599 old_addtime = &tval;
1601 if (dsdb_dn != old_dsdb_dn) {
1602 ret = ldb_dn_set_extended_component(dn, "RMD_ADDTIME", old_addtime);
1603 if (ret != LDB_SUCCESS) return ret;
1606 /* use our invocation id */
1607 ret = ldb_dn_set_extended_component(dn, "RMD_INVOCID", &iid);
1608 if (ret != LDB_SUCCESS) return ret;
1610 /* changetime is the current time */
1611 ret = ldb_dn_set_extended_component(dn, "RMD_CHANGETIME", &tval);
1612 if (ret != LDB_SUCCESS) return ret;
1614 /* update the USN */
1615 ret = ldb_dn_set_extended_component(dn, "RMD_ORIGINATING_USN", &usnv);
1616 if (ret != LDB_SUCCESS) return ret;
1618 ret = ldb_dn_set_extended_component(dn, "RMD_LOCAL_USN", &local_usnv);
1619 if (ret != LDB_SUCCESS) return ret;
1621 /* increase the version by 1 */
1622 status = dsdb_get_extended_dn_uint32(old_dsdb_dn->dn, &old_version, "RMD_VERSION");
1623 if (NT_STATUS_IS_OK(status) && old_version >= version) {
1624 version = old_version+1;
1626 vstring = talloc_asprintf(dn, "%lu", (unsigned long)version);
1627 vers = data_blob_string_const(vstring);
1628 ret = ldb_dn_set_extended_component(dn, "RMD_VERSION", &vers);
1629 if (ret != LDB_SUCCESS) return ret;
1631 dnstring = dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1);
1632 if (dnstring == NULL) {
1633 return LDB_ERR_OPERATIONS_ERROR;
1635 *v = data_blob_string_const(dnstring);
1641 handle adding a linked attribute
1643 static int replmd_modify_la_add(struct ldb_module *module,
1644 const struct dsdb_schema *schema,
1645 struct ldb_message *msg,
1646 struct ldb_message_element *el,
1647 struct ldb_message_element *old_el,
1648 const struct dsdb_attribute *schema_attr,
1651 struct GUID *msg_guid)
1654 struct parsed_dn *dns, *old_dns;
1655 TALLOC_CTX *tmp_ctx = talloc_new(msg);
1657 struct ldb_val *new_values = NULL;
1658 unsigned int num_new_values = 0;
1659 unsigned old_num_values = old_el?old_el->num_values:0;
1660 const struct GUID *invocation_id;
1661 struct ldb_context *ldb = ldb_module_get_ctx(module);
1664 unix_to_nt_time(&now, t);
1666 ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
1667 if (ret != LDB_SUCCESS) {
1668 talloc_free(tmp_ctx);
1672 ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
1673 if (ret != LDB_SUCCESS) {
1674 talloc_free(tmp_ctx);
1678 invocation_id = samdb_ntds_invocation_id(ldb);
1679 if (!invocation_id) {
1680 talloc_free(tmp_ctx);
1681 return LDB_ERR_OPERATIONS_ERROR;
1684 ret = replmd_check_upgrade_links(old_dns, old_num_values, old_el, invocation_id);
1685 if (ret != LDB_SUCCESS) {
1686 talloc_free(tmp_ctx);
1690 /* for each new value, see if it exists already with the same GUID */
1691 for (i=0; i<el->num_values; i++) {
1692 struct parsed_dn *p = parsed_dn_find(old_dns, old_num_values, dns[i].guid, NULL);
1694 /* this is a new linked attribute value */
1695 new_values = talloc_realloc(tmp_ctx, new_values, struct ldb_val, num_new_values+1);
1696 if (new_values == NULL) {
1697 ldb_module_oom(module);
1698 talloc_free(tmp_ctx);
1699 return LDB_ERR_OPERATIONS_ERROR;
1701 ret = replmd_build_la_val(new_values, &new_values[num_new_values], dns[i].dsdb_dn,
1702 invocation_id, seq_num, seq_num, now, 0, false);
1703 if (ret != LDB_SUCCESS) {
1704 talloc_free(tmp_ctx);
1709 /* this is only allowed if the GUID was
1710 previously deleted. */
1711 uint32_t rmd_flags = dsdb_dn_rmd_flags(p->dsdb_dn->dn);
1713 if (!(rmd_flags & DSDB_RMD_FLAG_DELETED)) {
1714 ldb_asprintf_errstring(ldb, "Attribute %s already exists for target GUID %s",
1715 el->name, GUID_string(tmp_ctx, p->guid));
1716 talloc_free(tmp_ctx);
1717 return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
1719 ret = replmd_update_la_val(old_el->values, p->v, dns[i].dsdb_dn, p->dsdb_dn,
1720 invocation_id, seq_num, seq_num, now, 0, false);
1721 if (ret != LDB_SUCCESS) {
1722 talloc_free(tmp_ctx);
1727 ret = replmd_add_backlink(module, schema, msg_guid, dns[i].guid, true, schema_attr, true);
1728 if (ret != LDB_SUCCESS) {
1729 talloc_free(tmp_ctx);
1734 /* add the new ones on to the end of the old values, constructing a new el->values */
1735 el->values = talloc_realloc(msg->elements, old_el?old_el->values:NULL,
1737 old_num_values+num_new_values);
1738 if (el->values == NULL) {
1739 ldb_module_oom(module);
1740 return LDB_ERR_OPERATIONS_ERROR;
1743 memcpy(&el->values[old_num_values], new_values, num_new_values*sizeof(struct ldb_val));
1744 el->num_values = old_num_values + num_new_values;
1746 talloc_steal(msg->elements, el->values);
1747 talloc_steal(el->values, new_values);
1749 talloc_free(tmp_ctx);
1751 /* we now tell the backend to replace all existing values
1752 with the one we have constructed */
1753 el->flags = LDB_FLAG_MOD_REPLACE;
1760 handle deleting all active linked attributes
1762 static int replmd_modify_la_delete(struct ldb_module *module,
1763 const struct dsdb_schema *schema,
1764 struct ldb_message *msg,
1765 struct ldb_message_element *el,
1766 struct ldb_message_element *old_el,
1767 const struct dsdb_attribute *schema_attr,
1770 struct GUID *msg_guid)
1773 struct parsed_dn *dns, *old_dns;
1774 TALLOC_CTX *tmp_ctx = talloc_new(msg);
1776 const struct GUID *invocation_id;
1777 struct ldb_context *ldb = ldb_module_get_ctx(module);
1780 unix_to_nt_time(&now, t);
1782 /* check if there is nothing to delete */
1783 if ((!old_el || old_el->num_values == 0) &&
1784 el->num_values == 0) {
1788 if (!old_el || old_el->num_values == 0) {
1789 return LDB_ERR_NO_SUCH_ATTRIBUTE;
1792 ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
1793 if (ret != LDB_SUCCESS) {
1794 talloc_free(tmp_ctx);
1798 ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
1799 if (ret != LDB_SUCCESS) {
1800 talloc_free(tmp_ctx);
1804 invocation_id = samdb_ntds_invocation_id(ldb);
1805 if (!invocation_id) {
1806 return LDB_ERR_OPERATIONS_ERROR;
1809 ret = replmd_check_upgrade_links(old_dns, old_el->num_values, old_el, invocation_id);
1810 if (ret != LDB_SUCCESS) {
1811 talloc_free(tmp_ctx);
1817 /* see if we are being asked to delete any links that
1818 don't exist or are already deleted */
1819 for (i=0; i<el->num_values; i++) {
1820 struct parsed_dn *p = &dns[i];
1821 struct parsed_dn *p2;
1824 p2 = parsed_dn_find(old_dns, old_el->num_values, p->guid, NULL);
1826 ldb_asprintf_errstring(ldb, "Attribute %s doesn't exist for target GUID %s",
1827 el->name, GUID_string(tmp_ctx, p->guid));
1828 return LDB_ERR_NO_SUCH_ATTRIBUTE;
1830 rmd_flags = dsdb_dn_rmd_flags(p2->dsdb_dn->dn);
1831 if (rmd_flags & DSDB_RMD_FLAG_DELETED) {
1832 ldb_asprintf_errstring(ldb, "Attribute %s already deleted for target GUID %s",
1833 el->name, GUID_string(tmp_ctx, p->guid));
1834 return LDB_ERR_NO_SUCH_ATTRIBUTE;
1838 /* for each new value, see if it exists already with the same GUID
1839 if it is not already deleted and matches the delete list then delete it
1841 for (i=0; i<old_el->num_values; i++) {
1842 struct parsed_dn *p = &old_dns[i];
1845 if (el->num_values && parsed_dn_find(dns, el->num_values, p->guid, NULL) == NULL) {
1849 rmd_flags = dsdb_dn_rmd_flags(p->dsdb_dn->dn);
1850 if (rmd_flags & DSDB_RMD_FLAG_DELETED) continue;
1852 ret = replmd_update_la_val(old_el->values, p->v, p->dsdb_dn, p->dsdb_dn,
1853 invocation_id, seq_num, seq_num, now, 0, true);
1854 if (ret != LDB_SUCCESS) {
1855 talloc_free(tmp_ctx);
1859 ret = replmd_add_backlink(module, schema, msg_guid, old_dns[i].guid, false, schema_attr, true);
1860 if (ret != LDB_SUCCESS) {
1861 talloc_free(tmp_ctx);
1866 el->values = talloc_steal(msg->elements, old_el->values);
1867 el->num_values = old_el->num_values;
1869 talloc_free(tmp_ctx);
1871 /* we now tell the backend to replace all existing values
1872 with the one we have constructed */
1873 el->flags = LDB_FLAG_MOD_REPLACE;
1879 handle replacing a linked attribute
1881 static int replmd_modify_la_replace(struct ldb_module *module,
1882 const struct dsdb_schema *schema,
1883 struct ldb_message *msg,
1884 struct ldb_message_element *el,
1885 struct ldb_message_element *old_el,
1886 const struct dsdb_attribute *schema_attr,
1889 struct GUID *msg_guid)
1892 struct parsed_dn *dns, *old_dns;
1893 TALLOC_CTX *tmp_ctx = talloc_new(msg);
1895 const struct GUID *invocation_id;
1896 struct ldb_context *ldb = ldb_module_get_ctx(module);
1897 struct ldb_val *new_values = NULL;
1898 unsigned int num_new_values = 0;
1899 unsigned int old_num_values = old_el?old_el->num_values:0;
1902 unix_to_nt_time(&now, t);
1904 /* check if there is nothing to replace */
1905 if ((!old_el || old_el->num_values == 0) &&
1906 el->num_values == 0) {
1910 ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
1911 if (ret != LDB_SUCCESS) {
1912 talloc_free(tmp_ctx);
1916 ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
1917 if (ret != LDB_SUCCESS) {
1918 talloc_free(tmp_ctx);
1922 invocation_id = samdb_ntds_invocation_id(ldb);
1923 if (!invocation_id) {
1924 return LDB_ERR_OPERATIONS_ERROR;
1927 ret = replmd_check_upgrade_links(old_dns, old_num_values, old_el, invocation_id);
1928 if (ret != LDB_SUCCESS) {
1929 talloc_free(tmp_ctx);
1933 /* mark all the old ones as deleted */
1934 for (i=0; i<old_num_values; i++) {
1935 struct parsed_dn *old_p = &old_dns[i];
1936 struct parsed_dn *p;
1937 uint32_t rmd_flags = dsdb_dn_rmd_flags(old_p->dsdb_dn->dn);
1939 if (rmd_flags & DSDB_RMD_FLAG_DELETED) continue;
1941 ret = replmd_add_backlink(module, schema, msg_guid, old_dns[i].guid, false, schema_attr, false);
1942 if (ret != LDB_SUCCESS) {
1943 talloc_free(tmp_ctx);
1947 p = parsed_dn_find(dns, el->num_values, old_p->guid, NULL);
1949 /* we don't delete it if we are re-adding it */
1953 ret = replmd_update_la_val(old_el->values, old_p->v, old_p->dsdb_dn, old_p->dsdb_dn,
1954 invocation_id, seq_num, seq_num, now, 0, true);
1955 if (ret != LDB_SUCCESS) {
1956 talloc_free(tmp_ctx);
1961 /* for each new value, either update its meta-data, or add it
1964 for (i=0; i<el->num_values; i++) {
1965 struct parsed_dn *p = &dns[i], *old_p;
1968 (old_p = parsed_dn_find(old_dns,
1969 old_num_values, p->guid, NULL)) != NULL) {
1970 /* update in place */
1971 ret = replmd_update_la_val(old_el->values, old_p->v, old_p->dsdb_dn,
1972 old_p->dsdb_dn, invocation_id,
1973 seq_num, seq_num, now, 0, false);
1974 if (ret != LDB_SUCCESS) {
1975 talloc_free(tmp_ctx);
1980 new_values = talloc_realloc(tmp_ctx, new_values, struct ldb_val,
1982 if (new_values == NULL) {
1983 ldb_module_oom(module);
1984 talloc_free(tmp_ctx);
1985 return LDB_ERR_OPERATIONS_ERROR;
1987 ret = replmd_build_la_val(new_values, &new_values[num_new_values], dns[i].dsdb_dn,
1988 invocation_id, seq_num, seq_num, now, 0, false);
1989 if (ret != LDB_SUCCESS) {
1990 talloc_free(tmp_ctx);
1996 ret = replmd_add_backlink(module, schema, msg_guid, dns[i].guid, true, schema_attr, false);
1997 if (ret != LDB_SUCCESS) {
1998 talloc_free(tmp_ctx);
2003 /* add the new values to the end of old_el */
2004 if (num_new_values != 0) {
2005 el->values = talloc_realloc(msg->elements, old_el?old_el->values:NULL,
2006 struct ldb_val, old_num_values+num_new_values);
2007 if (el->values == NULL) {
2008 ldb_module_oom(module);
2009 return LDB_ERR_OPERATIONS_ERROR;
2011 memcpy(&el->values[old_num_values], &new_values[0],
2012 sizeof(struct ldb_val)*num_new_values);
2013 el->num_values = old_num_values + num_new_values;
2014 talloc_steal(msg->elements, new_values);
2016 el->values = old_el->values;
2017 el->num_values = old_el->num_values;
2018 talloc_steal(msg->elements, el->values);
2021 talloc_free(tmp_ctx);
2023 /* we now tell the backend to replace all existing values
2024 with the one we have constructed */
2025 el->flags = LDB_FLAG_MOD_REPLACE;
2032 handle linked attributes in modify requests
2034 static int replmd_modify_handle_linked_attribs(struct ldb_module *module,
2035 struct ldb_message *msg,
2036 uint64_t seq_num, time_t t)
2038 struct ldb_result *res;
2041 struct ldb_context *ldb = ldb_module_get_ctx(module);
2042 struct ldb_message *old_msg;
2044 const struct dsdb_schema *schema;
2045 struct GUID old_guid;
2048 /* there the replmd_update_rpmd code has already
2049 * checked and saw that there are no linked
2054 if (dsdb_functional_level(ldb) == DS_DOMAIN_FUNCTION_2000) {
2055 /* don't do anything special for linked attributes */
2059 ret = dsdb_module_search_dn(module, msg, &res, msg->dn, NULL,
2060 DSDB_FLAG_NEXT_MODULE |
2061 DSDB_SEARCH_SHOW_RECYCLED |
2062 DSDB_SEARCH_REVEAL_INTERNALS |
2063 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
2064 if (ret != LDB_SUCCESS) {
2067 schema = dsdb_get_schema(ldb, res);
2069 return LDB_ERR_OPERATIONS_ERROR;
2072 old_msg = res->msgs[0];
2074 old_guid = samdb_result_guid(old_msg, "objectGUID");
2076 for (i=0; i<msg->num_elements; i++) {
2077 struct ldb_message_element *el = &msg->elements[i];
2078 struct ldb_message_element *old_el, *new_el;
2079 const struct dsdb_attribute *schema_attr
2080 = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
2082 ldb_asprintf_errstring(ldb,
2083 "attribute %s is not a valid attribute in schema", el->name);
2084 return LDB_ERR_OBJECT_CLASS_VIOLATION;
2086 if (schema_attr->linkID == 0) {
2089 if ((schema_attr->linkID & 1) == 1) {
2090 /* Odd is for the target. Illegal to modify */
2091 ldb_asprintf_errstring(ldb,
2092 "attribute %s must not be modified directly, it is a linked attribute", el->name);
2093 return LDB_ERR_UNWILLING_TO_PERFORM;
2095 old_el = ldb_msg_find_element(old_msg, el->name);
2096 switch (el->flags & LDB_FLAG_MOD_MASK) {
2097 case LDB_FLAG_MOD_REPLACE:
2098 ret = replmd_modify_la_replace(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
2100 case LDB_FLAG_MOD_DELETE:
2101 ret = replmd_modify_la_delete(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
2103 case LDB_FLAG_MOD_ADD:
2104 ret = replmd_modify_la_add(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
2107 ldb_asprintf_errstring(ldb,
2108 "invalid flags 0x%x for %s linked attribute",
2109 el->flags, el->name);
2110 return LDB_ERR_UNWILLING_TO_PERFORM;
2112 if (ret != LDB_SUCCESS) {
2116 ldb_msg_remove_attr(old_msg, el->name);
2118 ldb_msg_add_empty(old_msg, el->name, 0, &new_el);
2119 new_el->num_values = el->num_values;
2120 new_el->values = talloc_steal(msg->elements, el->values);
2122 /* TODO: this relises a bit too heavily on the exact
2123 behaviour of ldb_msg_find_element and
2124 ldb_msg_remove_element */
2125 old_el = ldb_msg_find_element(msg, el->name);
2127 ldb_msg_remove_element(msg, old_el);
2138 static int replmd_modify(struct ldb_module *module, struct ldb_request *req)
2140 struct ldb_context *ldb;
2141 struct replmd_replicated_request *ac;
2142 struct ldb_request *down_req;
2143 struct ldb_message *msg;
2144 time_t t = time(NULL);
2146 bool is_urgent = false;
2147 struct loadparm_context *lp_ctx;
2149 unsigned int functional_level;
2151 /* do not manipulate our control entries */
2152 if (ldb_dn_is_special(req->op.mod.message->dn)) {
2153 return ldb_next_request(module, req);
2156 ldb = ldb_module_get_ctx(module);
2157 functional_level = dsdb_functional_level(ldb);
2159 lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
2160 struct loadparm_context);
2162 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_modify\n");
2164 ac = replmd_ctx_init(module, req);
2166 return LDB_ERR_OPERATIONS_ERROR;
2169 /* we have to copy the message as the caller might have it as a const */
2170 msg = ldb_msg_copy_shallow(ac, req->op.mod.message);
2174 return LDB_ERR_OPERATIONS_ERROR;
2177 ldb_msg_remove_attr(msg, "whenChanged");
2178 ldb_msg_remove_attr(msg, "uSNChanged");
2180 ret = replmd_update_rpmd(module, ac->schema, req, msg, &ac->seq_num, t, &is_urgent);
2181 if (ret == LDB_ERR_REFERRAL) {
2182 referral = talloc_asprintf(req,
2184 lpcfg_dnsdomain(lp_ctx),
2185 ldb_dn_get_linearized(msg->dn));
2186 ret = ldb_module_send_referral(req, referral);
2188 return ldb_module_done(req, NULL, NULL, ret);
2191 if (ret != LDB_SUCCESS) {
2196 ret = replmd_modify_handle_linked_attribs(module, msg, ac->seq_num, t);
2197 if (ret != LDB_SUCCESS) {
2203 * - replace the old object with the newly constructed one
2206 ac->is_urgent = is_urgent;
2208 ret = ldb_build_mod_req(&down_req, ldb, ac,
2211 ac, replmd_op_callback,
2213 LDB_REQ_SET_LOCATION(down_req);
2214 if (ret != LDB_SUCCESS) {
2219 /* If we are in functional level 2000, then
2220 * replmd_modify_handle_linked_attribs will have done
2222 if (functional_level == DS_DOMAIN_FUNCTION_2000) {
2223 ret = ldb_request_add_control(down_req, DSDB_CONTROL_APPLY_LINKS, false, NULL);
2224 if (ret != LDB_SUCCESS) {
2230 talloc_steal(down_req, msg);
2232 /* we only change whenChanged and uSNChanged if the seq_num
2234 if (ac->seq_num != 0) {
2235 ret = add_time_element(msg, "whenChanged", t);
2236 if (ret != LDB_SUCCESS) {
2241 ret = add_uint64_element(ldb, msg, "uSNChanged", ac->seq_num);
2242 if (ret != LDB_SUCCESS) {
2248 /* go on with the call chain */
2249 return ldb_next_request(module, down_req);
2252 static int replmd_rename_callback(struct ldb_request *req, struct ldb_reply *ares);
2255 handle a rename request
2257 On a rename we need to do an extra ldb_modify which sets the
2258 whenChanged and uSNChanged attributes. We do this in a callback after the success.
2260 static int replmd_rename(struct ldb_module *module, struct ldb_request *req)
2262 struct ldb_context *ldb;
2263 struct replmd_replicated_request *ac;
2265 struct ldb_request *down_req;
2267 /* do not manipulate our control entries */
2268 if (ldb_dn_is_special(req->op.mod.message->dn)) {
2269 return ldb_next_request(module, req);
2272 ldb = ldb_module_get_ctx(module);
2274 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_rename\n");
2276 ac = replmd_ctx_init(module, req);
2278 return LDB_ERR_OPERATIONS_ERROR;
2280 ret = ldb_build_rename_req(&down_req, ldb, ac,
2281 ac->req->op.rename.olddn,
2282 ac->req->op.rename.newdn,
2284 ac, replmd_rename_callback,
2286 LDB_REQ_SET_LOCATION(down_req);
2287 if (ret != LDB_SUCCESS) {
2292 /* go on with the call chain */
2293 return ldb_next_request(module, down_req);
2296 /* After the rename is compleated, update the whenchanged etc */
2297 static int replmd_rename_callback(struct ldb_request *req, struct ldb_reply *ares)
2299 struct ldb_context *ldb;
2300 struct replmd_replicated_request *ac;
2301 struct ldb_request *down_req;
2302 struct ldb_message *msg;
2303 time_t t = time(NULL);
2306 ac = talloc_get_type(req->context, struct replmd_replicated_request);
2307 ldb = ldb_module_get_ctx(ac->module);
2309 if (ares->error != LDB_SUCCESS) {
2310 return ldb_module_done(ac->req, ares->controls,
2311 ares->response, ares->error);
2314 if (ares->type != LDB_REPLY_DONE) {
2315 ldb_set_errstring(ldb,
2316 "invalid ldb_reply_type in callback");
2318 return ldb_module_done(ac->req, NULL, NULL,
2319 LDB_ERR_OPERATIONS_ERROR);
2322 /* Get a sequence number from the backend */
2323 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ac->seq_num);
2324 if (ret != LDB_SUCCESS) {
2329 * - replace the old object with the newly constructed one
2332 msg = ldb_msg_new(ac);
2335 return LDB_ERR_OPERATIONS_ERROR;
2338 msg->dn = ac->req->op.rename.newdn;
2340 ret = ldb_build_mod_req(&down_req, ldb, ac,
2343 ac, replmd_op_callback,
2345 LDB_REQ_SET_LOCATION(down_req);
2346 if (ret != LDB_SUCCESS) {
2350 talloc_steal(down_req, msg);
2352 ret = add_time_element(msg, "whenChanged", t);
2353 if (ret != LDB_SUCCESS) {
2358 ret = add_uint64_element(ldb, msg, "uSNChanged", ac->seq_num);
2359 if (ret != LDB_SUCCESS) {
2364 /* go on with the call chain - do the modify after the rename */
2365 return ldb_next_request(ac->module, down_req);
2369 remove links from objects that point at this object when an object
2372 static int replmd_delete_remove_link(struct ldb_module *module,
2373 const struct dsdb_schema *schema,
2375 struct ldb_message_element *el,
2376 const struct dsdb_attribute *sa)
2379 TALLOC_CTX *tmp_ctx = talloc_new(module);
2380 struct ldb_context *ldb = ldb_module_get_ctx(module);
2382 for (i=0; i<el->num_values; i++) {
2383 struct dsdb_dn *dsdb_dn;
2387 struct ldb_message *msg;
2388 const struct dsdb_attribute *target_attr;
2389 struct ldb_message_element *el2;
2390 struct ldb_val dn_val;
2392 if (dsdb_dn_is_deleted_val(&el->values[i])) {
2396 dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &el->values[i], sa->syntax->ldap_oid);
2398 talloc_free(tmp_ctx);
2399 return LDB_ERR_OPERATIONS_ERROR;
2402 status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &guid2, "GUID");
2403 if (!NT_STATUS_IS_OK(status)) {
2404 talloc_free(tmp_ctx);
2405 return LDB_ERR_OPERATIONS_ERROR;
2408 /* remove the link */
2409 msg = ldb_msg_new(tmp_ctx);
2411 ldb_module_oom(module);
2412 talloc_free(tmp_ctx);
2413 return LDB_ERR_OPERATIONS_ERROR;
2417 msg->dn = dsdb_dn->dn;
2419 target_attr = dsdb_attribute_by_linkID(schema, sa->linkID ^ 1);
2420 if (target_attr == NULL) {
2424 ret = ldb_msg_add_empty(msg, target_attr->lDAPDisplayName, LDB_FLAG_MOD_DELETE, &el2);
2425 if (ret != LDB_SUCCESS) {
2426 ldb_module_oom(module);
2427 talloc_free(tmp_ctx);
2428 return LDB_ERR_OPERATIONS_ERROR;
2430 dn_val = data_blob_string_const(ldb_dn_get_linearized(dn));
2431 el2->values = &dn_val;
2432 el2->num_values = 1;
2434 ret = dsdb_module_modify(module, msg, DSDB_FLAG_OWN_MODULE);
2435 if (ret != LDB_SUCCESS) {
2436 talloc_free(tmp_ctx);
2440 talloc_free(tmp_ctx);
2446 handle update of replication meta data for deletion of objects
2448 This also handles the mapping of delete to a rename operation
2449 to allow deletes to be replicated.
2451 static int replmd_delete(struct ldb_module *module, struct ldb_request *req)
2453 int ret = LDB_ERR_OTHER;
2454 bool retb, disallow_move_on_delete;
2455 struct ldb_dn *old_dn, *new_dn;
2456 const char *rdn_name;
2457 const struct ldb_val *rdn_value, *new_rdn_value;
2459 struct ldb_context *ldb = ldb_module_get_ctx(module);
2460 const struct dsdb_schema *schema;
2461 struct ldb_message *msg, *old_msg;
2462 struct ldb_message_element *el;
2463 TALLOC_CTX *tmp_ctx;
2464 struct ldb_result *res, *parent_res;
2465 const char *preserved_attrs[] = {
2466 /* yes, this really is a hard coded list. See MS-ADTS
2467 section 3.1.1.5.5.1.1 */
2468 "nTSecurityDescriptor", "attributeID", "attributeSyntax", "dNReferenceUpdate", "dNSHostName",
2469 "flatName", "governsID", "groupType", "instanceType", "lDAPDisplayName", "legacyExchangeDN",
2470 "isDeleted", "isRecycled", "lastKnownParent", "msDS-LastKnownRDN", "mS-DS-CreatorSID",
2471 "mSMQOwnerID", "nCName", "objectClass", "distinguishedName", "objectGUID", "objectSid",
2472 "oMSyntax", "proxiedObjectName", "name", "replPropertyMetaData", "sAMAccountName",
2473 "securityIdentifier", "sIDHistory", "subClassOf", "systemFlags", "trustPartner", "trustDirection",
2474 "trustType", "trustAttributes", "userAccountControl", "uSNChanged", "uSNCreated", "whenCreated",
2475 "whenChanged", NULL};
2476 unsigned int i, el_count = 0;
2477 enum deletion_state { OBJECT_NOT_DELETED=1, OBJECT_DELETED=2, OBJECT_RECYCLED=3,
2478 OBJECT_TOMBSTONE=4, OBJECT_REMOVED=5 };
2479 enum deletion_state deletion_state, next_deletion_state;
2482 if (ldb_dn_is_special(req->op.del.dn)) {
2483 return ldb_next_request(module, req);
2486 tmp_ctx = talloc_new(ldb);
2489 return LDB_ERR_OPERATIONS_ERROR;
2492 schema = dsdb_get_schema(ldb, tmp_ctx);
2494 return LDB_ERR_OPERATIONS_ERROR;
2497 old_dn = ldb_dn_copy(tmp_ctx, req->op.del.dn);
2499 /* we need the complete msg off disk, so we can work out which
2500 attributes need to be removed */
2501 ret = dsdb_module_search_dn(module, tmp_ctx, &res, old_dn, NULL,
2502 DSDB_FLAG_NEXT_MODULE |
2503 DSDB_SEARCH_SHOW_RECYCLED |
2504 DSDB_SEARCH_REVEAL_INTERNALS |
2505 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
2506 if (ret != LDB_SUCCESS) {
2507 talloc_free(tmp_ctx);
2510 old_msg = res->msgs[0];
2513 ret = dsdb_recyclebin_enabled(module, &enabled);
2514 if (ret != LDB_SUCCESS) {
2515 talloc_free(tmp_ctx);
2519 if (ldb_msg_check_string_attribute(old_msg, "isDeleted", "TRUE")) {
2521 deletion_state = OBJECT_TOMBSTONE;
2522 next_deletion_state = OBJECT_REMOVED;
2523 } else if (ldb_msg_check_string_attribute(old_msg, "isRecycled", "TRUE")) {
2524 deletion_state = OBJECT_RECYCLED;
2525 next_deletion_state = OBJECT_REMOVED;
2527 deletion_state = OBJECT_DELETED;
2528 next_deletion_state = OBJECT_RECYCLED;
2531 deletion_state = OBJECT_NOT_DELETED;
2533 next_deletion_state = OBJECT_DELETED;
2535 next_deletion_state = OBJECT_TOMBSTONE;
2539 if (next_deletion_state == OBJECT_REMOVED) {
2540 struct auth_session_info *session_info =
2541 (struct auth_session_info *)ldb_get_opaque(ldb, "sessionInfo");
2542 if (security_session_user_level(session_info, NULL) != SECURITY_SYSTEM) {
2543 ldb_asprintf_errstring(ldb, "Refusing to delete deleted object %s",
2544 ldb_dn_get_linearized(old_msg->dn));
2545 return LDB_ERR_UNWILLING_TO_PERFORM;
2548 /* it is already deleted - really remove it this time */
2549 talloc_free(tmp_ctx);
2550 return ldb_next_request(module, req);
2553 rdn_name = ldb_dn_get_rdn_name(old_dn);
2554 rdn_value = ldb_dn_get_rdn_val(old_dn);
2556 msg = ldb_msg_new(tmp_ctx);
2558 ldb_module_oom(module);
2559 talloc_free(tmp_ctx);
2560 return LDB_ERR_OPERATIONS_ERROR;
2565 if (deletion_state == OBJECT_NOT_DELETED){
2566 /* consider the SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE flag */
2567 disallow_move_on_delete =
2568 (ldb_msg_find_attr_as_int(old_msg, "systemFlags", 0)
2569 & SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE);
2571 /* work out where we will be renaming this object to */
2572 if (!disallow_move_on_delete) {
2573 ret = dsdb_get_deleted_objects_dn(ldb, tmp_ctx, old_dn,
2575 if (ret != LDB_SUCCESS) {
2576 /* this is probably an attempted delete on a partition
2577 * that doesn't allow delete operations, such as the
2578 * schema partition */
2579 ldb_asprintf_errstring(ldb, "No Deleted Objects container for DN %s",
2580 ldb_dn_get_linearized(old_dn));
2581 talloc_free(tmp_ctx);
2582 return LDB_ERR_UNWILLING_TO_PERFORM;
2585 new_dn = ldb_dn_get_parent(tmp_ctx, old_dn);
2586 if (new_dn == NULL) {
2587 ldb_module_oom(module);
2588 talloc_free(tmp_ctx);
2589 return LDB_ERR_OPERATIONS_ERROR;
2593 /* get the objects GUID from the search we just did */
2594 guid = samdb_result_guid(old_msg, "objectGUID");
2596 /* Add a formatted child */
2597 retb = ldb_dn_add_child_fmt(new_dn, "%s=%s\\0ADEL:%s",
2600 GUID_string(tmp_ctx, &guid));
2602 DEBUG(0,(__location__ ": Unable to add a formatted child to dn: %s",
2603 ldb_dn_get_linearized(new_dn)));
2604 talloc_free(tmp_ctx);
2605 return LDB_ERR_OPERATIONS_ERROR;
2608 ret = ldb_msg_add_string(msg, "isDeleted", "TRUE");
2609 if (ret != LDB_SUCCESS) {
2610 DEBUG(0,(__location__ ": Failed to add isDeleted string to the msg\n"));
2611 ldb_module_oom(module);
2612 talloc_free(tmp_ctx);
2615 msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
2619 now we need to modify the object in the following ways:
2621 - add isDeleted=TRUE
2622 - update rDN and name, with new rDN
2623 - remove linked attributes
2624 - remove objectCategory and sAMAccountType
2625 - remove attribs not on the preserved list
2626 - preserved if in above list, or is rDN
2627 - remove all linked attribs from this object
2628 - remove all links from other objects to this object
2629 - add lastKnownParent
2630 - update replPropertyMetaData?
2632 see MS-ADTS "Tombstone Requirements" section 3.1.1.5.5.1.1
2635 /* we need the storage form of the parent GUID */
2636 ret = dsdb_module_search_dn(module, tmp_ctx, &parent_res,
2637 ldb_dn_get_parent(tmp_ctx, old_dn), NULL,
2638 DSDB_FLAG_NEXT_MODULE |
2639 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
2640 DSDB_SEARCH_REVEAL_INTERNALS|
2641 DSDB_SEARCH_SHOW_RECYCLED);
2642 if (ret != LDB_SUCCESS) {
2643 talloc_free(tmp_ctx);
2647 if (deletion_state == OBJECT_NOT_DELETED){
2648 ret = ldb_msg_add_steal_string(msg, "lastKnownParent",
2649 ldb_dn_get_extended_linearized(tmp_ctx, parent_res->msgs[0]->dn, 1));
2650 if (ret != LDB_SUCCESS) {
2651 DEBUG(0,(__location__ ": Failed to add lastKnownParent string to the msg\n"));
2652 ldb_module_oom(module);
2653 talloc_free(tmp_ctx);
2656 msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
2659 switch (next_deletion_state){
2661 case OBJECT_DELETED:
2663 ret = ldb_msg_add_value(msg, "msDS-LastKnownRDN", rdn_value, NULL);
2664 if (ret != LDB_SUCCESS) {
2665 DEBUG(0,(__location__ ": Failed to add msDS-LastKnownRDN string to the msg\n"));
2666 ldb_module_oom(module);
2667 talloc_free(tmp_ctx);
2670 msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
2672 ret = ldb_msg_add_empty(msg, "objectCategory", LDB_FLAG_MOD_DELETE, NULL);
2673 if (ret != LDB_SUCCESS) {
2674 talloc_free(tmp_ctx);
2675 ldb_module_oom(module);
2679 ret = ldb_msg_add_empty(msg, "sAMAccountType", LDB_FLAG_MOD_DELETE, NULL);
2680 if (ret != LDB_SUCCESS) {
2681 talloc_free(tmp_ctx);
2682 ldb_module_oom(module);
2688 case OBJECT_RECYCLED:
2689 case OBJECT_TOMBSTONE:
2691 /* we also mark it as recycled, meaning this object can't be
2692 recovered (we are stripping its attributes) */
2693 if (dsdb_functional_level(ldb) >= DS_DOMAIN_FUNCTION_2008_R2) {
2694 ret = ldb_msg_add_string(msg, "isRecycled", "TRUE");
2695 if (ret != LDB_SUCCESS) {
2696 DEBUG(0,(__location__ ": Failed to add isRecycled string to the msg\n"));
2697 ldb_module_oom(module);
2698 talloc_free(tmp_ctx);
2701 msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
2704 /* work out which of the old attributes we will be removing */
2705 for (i=0; i<old_msg->num_elements; i++) {
2706 const struct dsdb_attribute *sa;
2707 el = &old_msg->elements[i];
2708 sa = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
2710 talloc_free(tmp_ctx);
2711 return LDB_ERR_OPERATIONS_ERROR;
2713 if (ldb_attr_cmp(el->name, rdn_name) == 0) {
2714 /* don't remove the rDN */
2717 if (sa->linkID && sa->linkID & 1) {
2718 ret = replmd_delete_remove_link(module, schema, old_dn, el, sa);
2719 if (ret != LDB_SUCCESS) {
2720 talloc_free(tmp_ctx);
2721 return LDB_ERR_OPERATIONS_ERROR;
2725 if (!sa->linkID && ldb_attr_in_list(preserved_attrs, el->name)) {
2728 ret = ldb_msg_add_empty(msg, el->name, LDB_FLAG_MOD_DELETE, &el);
2729 if (ret != LDB_SUCCESS) {
2730 talloc_free(tmp_ctx);
2731 ldb_module_oom(module);
2741 if (deletion_state == OBJECT_NOT_DELETED) {
2742 const struct dsdb_attribute *sa;
2744 /* work out what the new rdn value is, for updating the
2745 rDN and name fields */
2746 new_rdn_value = ldb_dn_get_rdn_val(new_dn);
2748 sa = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
2750 talloc_free(tmp_ctx);
2751 return LDB_ERR_OPERATIONS_ERROR;
2754 ret = ldb_msg_add_value(msg, sa->lDAPDisplayName, new_rdn_value,
2756 if (ret != LDB_SUCCESS) {
2757 talloc_free(tmp_ctx);
2760 el->flags = LDB_FLAG_MOD_REPLACE;
2762 el = ldb_msg_find_element(old_msg, "name");
2764 ret = ldb_msg_add_value(msg, "name", new_rdn_value, &el);
2765 if (ret != LDB_SUCCESS) {
2766 talloc_free(tmp_ctx);
2769 el->flags = LDB_FLAG_MOD_REPLACE;
2773 ret = dsdb_module_modify(module, msg, DSDB_FLAG_OWN_MODULE);
2774 if (ret != LDB_SUCCESS) {
2775 ldb_asprintf_errstring(ldb, "replmd_delete: Failed to modify object %s in delete - %s",
2776 ldb_dn_get_linearized(old_dn), ldb_errstring(ldb));
2777 talloc_free(tmp_ctx);
2781 if (deletion_state == OBJECT_NOT_DELETED) {
2782 /* now rename onto the new DN */
2783 ret = dsdb_module_rename(module, old_dn, new_dn, DSDB_FLAG_NEXT_MODULE);
2784 if (ret != LDB_SUCCESS){
2785 DEBUG(0,(__location__ ": Failed to rename object from '%s' to '%s' - %s\n",
2786 ldb_dn_get_linearized(old_dn),
2787 ldb_dn_get_linearized(new_dn),
2788 ldb_errstring(ldb)));
2789 talloc_free(tmp_ctx);
2794 talloc_free(tmp_ctx);
2796 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
2801 static int replmd_replicated_request_error(struct replmd_replicated_request *ar, int ret)
2806 static int replmd_replicated_request_werror(struct replmd_replicated_request *ar, WERROR status)
2808 int ret = LDB_ERR_OTHER;
2809 /* TODO: do some error mapping */
2813 static int replmd_replicated_apply_add(struct replmd_replicated_request *ar)
2815 struct ldb_context *ldb;
2816 struct ldb_request *change_req;
2817 enum ndr_err_code ndr_err;
2818 struct ldb_message *msg;
2819 struct replPropertyMetaDataBlob *md;
2820 struct ldb_val md_value;
2825 * TODO: check if the parent object exist
2829 * TODO: handle the conflict case where an object with the
2833 ldb = ldb_module_get_ctx(ar->module);
2834 msg = ar->objs->objects[ar->index_current].msg;
2835 md = ar->objs->objects[ar->index_current].meta_data;
2837 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ar->seq_num);
2838 if (ret != LDB_SUCCESS) {
2839 return replmd_replicated_request_error(ar, ret);
2842 ret = ldb_msg_add_value(msg, "objectGUID", &ar->objs->objects[ar->index_current].guid_value, NULL);
2843 if (ret != LDB_SUCCESS) {
2844 return replmd_replicated_request_error(ar, ret);
2847 ret = ldb_msg_add_string(msg, "whenChanged", ar->objs->objects[ar->index_current].when_changed);
2848 if (ret != LDB_SUCCESS) {
2849 return replmd_replicated_request_error(ar, ret);
2852 ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNCreated", ar->seq_num);
2853 if (ret != LDB_SUCCESS) {
2854 return replmd_replicated_request_error(ar, ret);
2857 ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ar->seq_num);
2858 if (ret != LDB_SUCCESS) {
2859 return replmd_replicated_request_error(ar, ret);
2862 /* remove any message elements that have zero values */
2863 for (i=0; i<msg->num_elements; i++) {
2864 struct ldb_message_element *el = &msg->elements[i];
2866 if (el->num_values == 0) {
2867 DEBUG(4,(__location__ ": Removing attribute %s with num_values==0\n",
2869 memmove(el, el+1, sizeof(*el)*(msg->num_elements - (i+1)));
2870 msg->num_elements--;
2877 * the meta data array is already sorted by the caller
2879 for (i=0; i < md->ctr.ctr1.count; i++) {
2880 md->ctr.ctr1.array[i].local_usn = ar->seq_num;
2882 ndr_err = ndr_push_struct_blob(&md_value, msg, md,
2883 (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
2884 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2885 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
2886 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
2888 ret = ldb_msg_add_value(msg, "replPropertyMetaData", &md_value, NULL);
2889 if (ret != LDB_SUCCESS) {
2890 return replmd_replicated_request_error(ar, ret);
2893 replmd_ldb_message_sort(msg, ar->schema);
2896 char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_ADD, msg);
2897 DEBUG(4, ("DRS replication add message:\n%s\n", s));
2901 ret = ldb_build_add_req(&change_req,
2909 LDB_REQ_SET_LOCATION(change_req);
2910 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
2912 return ldb_next_request(ar->module, change_req);
2916 return true if an update is newer than an existing entry
2917 see section 5.11 of MS-ADTS
2919 static bool replmd_update_is_newer(const struct GUID *current_invocation_id,
2920 const struct GUID *update_invocation_id,
2921 uint32_t current_version,
2922 uint32_t update_version,
2923 uint32_t current_usn,
2924 uint32_t update_usn,
2925 NTTIME current_change_time,
2926 NTTIME update_change_time)
2928 if (GUID_compare(update_invocation_id, current_invocation_id) == 0) {
2929 if (update_usn != current_usn) {
2930 return update_usn >= current_usn;
2933 if (update_version != current_version) {
2934 return update_version >= current_version;
2936 if (update_change_time != current_change_time) {
2937 return update_change_time >= current_change_time;
2939 return GUID_compare(update_invocation_id, current_invocation_id) >= 0;
2942 static bool replmd_replPropertyMetaData1_is_newer(struct replPropertyMetaData1 *cur_m,
2943 struct replPropertyMetaData1 *new_m)
2945 return replmd_update_is_newer(&cur_m->originating_invocation_id,
2946 &new_m->originating_invocation_id,
2949 cur_m->originating_usn,
2950 new_m->originating_usn,
2951 cur_m->originating_change_time,
2952 new_m->originating_change_time);
2955 static struct replPropertyMetaData1 *
2956 replmd_replPropertyMetaData1_find_attid(struct replPropertyMetaDataBlob *md_blob,
2957 enum drsuapi_DsAttributeId attid)
2960 struct replPropertyMetaDataCtr1 *rpmd_ctr = &md_blob->ctr.ctr1;
2962 for (i = 0; i < rpmd_ctr->count; i++) {
2963 if (rpmd_ctr->array[i].attid == attid) {
2964 return &rpmd_ctr->array[i];
2972 handle renames that come in over DRS replication
2974 static int replmd_replicated_handle_rename(struct replmd_replicated_request *ar,
2975 struct ldb_message *msg,
2976 struct replPropertyMetaDataBlob *rmd,
2977 struct replPropertyMetaDataBlob *omd)
2979 struct replPropertyMetaData1 *md_remote;
2980 struct replPropertyMetaData1 *md_local;
2982 if (ldb_dn_compare(msg->dn, ar->search_msg->dn) == 0) {
2987 /* now we need to check for double renames. We could have a
2988 * local rename pending which our replication partner hasn't
2989 * received yet. We choose which one wins by looking at the
2990 * attribute stamps on the two objects, the newer one wins
2992 md_remote = replmd_replPropertyMetaData1_find_attid(rmd, DRSUAPI_ATTID_name);
2993 md_local = replmd_replPropertyMetaData1_find_attid(omd, DRSUAPI_ATTID_name);
2994 /* if there is no name attribute then we have to assume the
2995 object we've received is in fact newer */
2996 if (!md_remote || !md_local ||
2997 replmd_replPropertyMetaData1_is_newer(md_local, md_remote)) {
2998 DEBUG(4,("replmd_replicated_request rename %s => %s\n",
2999 ldb_dn_get_linearized(ar->search_msg->dn),
3000 ldb_dn_get_linearized(msg->dn)));
3001 /* pass rename to the next module
3002 * so it doesn't appear as an originating update */
3003 return dsdb_module_rename(ar->module,
3004 ar->search_msg->dn, msg->dn,
3005 DSDB_FLAG_NEXT_MODULE | DSDB_MODIFY_RELAX);
3008 /* we're going to keep our old object */
3009 DEBUG(4,(__location__ ": Keeping object %s and rejecting older rename to %s\n",
3010 ldb_dn_get_linearized(ar->search_msg->dn),
3011 ldb_dn_get_linearized(msg->dn)));
3016 static int replmd_replicated_apply_merge(struct replmd_replicated_request *ar)
3018 struct ldb_context *ldb;
3019 struct ldb_request *change_req;
3020 enum ndr_err_code ndr_err;
3021 struct ldb_message *msg;
3022 struct replPropertyMetaDataBlob *rmd;
3023 struct replPropertyMetaDataBlob omd;
3024 const struct ldb_val *omd_value;
3025 struct replPropertyMetaDataBlob nmd;
3026 struct ldb_val nmd_value;
3029 unsigned int removed_attrs = 0;
3032 ldb = ldb_module_get_ctx(ar->module);
3033 msg = ar->objs->objects[ar->index_current].msg;
3034 rmd = ar->objs->objects[ar->index_current].meta_data;
3038 /* find existing meta data */
3039 omd_value = ldb_msg_find_ldb_val(ar->search_msg, "replPropertyMetaData");
3041 ndr_err = ndr_pull_struct_blob(omd_value, ar, &omd,
3042 (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
3043 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3044 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3045 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3048 if (omd.version != 1) {
3049 return replmd_replicated_request_werror(ar, WERR_DS_DRA_INTERNAL_ERROR);
3053 /* handle renames that come in over DRS */
3054 ret = replmd_replicated_handle_rename(ar, msg, rmd, &omd);
3055 if (ret != LDB_SUCCESS) {
3056 ldb_debug(ldb, LDB_DEBUG_FATAL,
3057 "replmd_replicated_request rename %s => %s failed - %s\n",
3058 ldb_dn_get_linearized(ar->search_msg->dn),
3059 ldb_dn_get_linearized(msg->dn),
3060 ldb_errstring(ldb));
3061 return replmd_replicated_request_werror(ar, WERR_DS_DRA_DB_ERROR);
3066 nmd.ctr.ctr1.count = omd.ctr.ctr1.count + rmd->ctr.ctr1.count;
3067 nmd.ctr.ctr1.array = talloc_array(ar,
3068 struct replPropertyMetaData1,
3069 nmd.ctr.ctr1.count);
3070 if (!nmd.ctr.ctr1.array) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3072 /* first copy the old meta data */
3073 for (i=0; i < omd.ctr.ctr1.count; i++) {
3074 nmd.ctr.ctr1.array[ni] = omd.ctr.ctr1.array[i];
3078 /* now merge in the new meta data */
3079 for (i=0; i < rmd->ctr.ctr1.count; i++) {
3082 for (j=0; j < ni; j++) {
3085 if (rmd->ctr.ctr1.array[i].attid != nmd.ctr.ctr1.array[j].attid) {
3089 cmp = replmd_replPropertyMetaData1_is_newer(&nmd.ctr.ctr1.array[j],
3090 &rmd->ctr.ctr1.array[i]);
3092 /* replace the entry */
3093 nmd.ctr.ctr1.array[j] = rmd->ctr.ctr1.array[i];
3098 if (rmd->ctr.ctr1.array[i].attid != DRSUAPI_ATTID_instanceType) {
3099 DEBUG(3,("Discarding older DRS attribute update to %s on %s from %s\n",
3100 msg->elements[i-removed_attrs].name,
3101 ldb_dn_get_linearized(msg->dn),
3102 GUID_string(ar, &rmd->ctr.ctr1.array[i].originating_invocation_id)));
3105 /* we don't want to apply this change so remove the attribute */
3106 ldb_msg_remove_element(msg, &msg->elements[i-removed_attrs]);
3113 if (found) continue;
3115 nmd.ctr.ctr1.array[ni] = rmd->ctr.ctr1.array[i];
3120 * finally correct the size of the meta_data array
3122 nmd.ctr.ctr1.count = ni;
3125 * the rdn attribute (the alias for the name attribute),
3126 * 'cn' for most objects is the last entry in the meta data array
3129 * sort the new meta data array
3131 ret = replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, ar->schema, msg->dn);
3132 if (ret != LDB_SUCCESS) {
3137 * check if some replicated attributes left, otherwise skip the ldb_modify() call
3139 if (msg->num_elements == 0) {
3140 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: skip replace\n",
3143 ar->index_current++;
3144 return replmd_replicated_apply_next(ar);
3147 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: replace %u attributes\n",
3148 ar->index_current, msg->num_elements);
3150 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ar->seq_num);
3151 if (ret != LDB_SUCCESS) {
3152 return replmd_replicated_request_error(ar, ret);
3155 for (i=0; i<ni; i++) {
3156 nmd.ctr.ctr1.array[i].local_usn = ar->seq_num;
3159 /* create the meta data value */
3160 ndr_err = ndr_push_struct_blob(&nmd_value, msg, &nmd,
3161 (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
3162 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3163 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3164 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3168 * when we know that we'll modify the record, add the whenChanged, uSNChanged
3169 * and replPopertyMetaData attributes
3171 ret = ldb_msg_add_string(msg, "whenChanged", ar->objs->objects[ar->index_current].when_changed);
3172 if (ret != LDB_SUCCESS) {
3173 return replmd_replicated_request_error(ar, ret);
3175 ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ar->seq_num);
3176 if (ret != LDB_SUCCESS) {
3177 return replmd_replicated_request_error(ar, ret);
3179 ret = ldb_msg_add_value(msg, "replPropertyMetaData", &nmd_value, NULL);
3180 if (ret != LDB_SUCCESS) {
3181 return replmd_replicated_request_error(ar, ret);
3184 replmd_ldb_message_sort(msg, ar->schema);
3186 /* we want to replace the old values */
3187 for (i=0; i < msg->num_elements; i++) {
3188 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
3192 char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_MODIFY, msg);
3193 DEBUG(4, ("DRS replication modify message:\n%s\n", s));
3197 ret = ldb_build_mod_req(&change_req,
3205 LDB_REQ_SET_LOCATION(change_req);
3206 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3208 return ldb_next_request(ar->module, change_req);
3211 static int replmd_replicated_apply_search_callback(struct ldb_request *req,
3212 struct ldb_reply *ares)
3214 struct replmd_replicated_request *ar = talloc_get_type(req->context,
3215 struct replmd_replicated_request);
3219 return ldb_module_done(ar->req, NULL, NULL,
3220 LDB_ERR_OPERATIONS_ERROR);
3222 if (ares->error != LDB_SUCCESS &&
3223 ares->error != LDB_ERR_NO_SUCH_OBJECT) {
3224 return ldb_module_done(ar->req, ares->controls,
3225 ares->response, ares->error);
3228 switch (ares->type) {
3229 case LDB_REPLY_ENTRY:
3230 ar->search_msg = talloc_steal(ar, ares->message);
3233 case LDB_REPLY_REFERRAL:
3234 /* we ignore referrals */
3237 case LDB_REPLY_DONE:
3238 if (ar->search_msg != NULL) {
3239 ret = replmd_replicated_apply_merge(ar);
3241 ret = replmd_replicated_apply_add(ar);
3243 if (ret != LDB_SUCCESS) {
3244 return ldb_module_done(ar->req, NULL, NULL, ret);
3252 static int replmd_replicated_uptodate_vector(struct replmd_replicated_request *ar);
3254 static int replmd_replicated_apply_next(struct replmd_replicated_request *ar)
3256 struct ldb_context *ldb;
3260 struct ldb_request *search_req;
3261 struct ldb_search_options_control *options;
3263 if (ar->index_current >= ar->objs->num_objects) {
3264 /* done with it, go to next stage */
3265 return replmd_replicated_uptodate_vector(ar);
3268 ldb = ldb_module_get_ctx(ar->module);
3269 ar->search_msg = NULL;
3271 tmp_str = ldb_binary_encode(ar, ar->objs->objects[ar->index_current].guid_value);
3272 if (!tmp_str) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3274 filter = talloc_asprintf(ar, "(objectGUID=%s)", tmp_str);
3275 if (!filter) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3276 talloc_free(tmp_str);
3278 ret = ldb_build_search_req(&search_req,
3287 replmd_replicated_apply_search_callback,
3289 LDB_REQ_SET_LOCATION(search_req);
3291 ret = ldb_request_add_control(search_req, LDB_CONTROL_SHOW_RECYCLED_OID,
3293 if (ret != LDB_SUCCESS) {
3297 /* we need to cope with cross-partition links, so search for
3298 the GUID over all partitions */
3299 options = talloc(search_req, struct ldb_search_options_control);
3300 if (options == NULL) {
3301 DEBUG(0, (__location__ ": out of memory\n"));
3302 return LDB_ERR_OPERATIONS_ERROR;
3304 options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
3306 ret = ldb_request_add_control(search_req,
3307 LDB_CONTROL_SEARCH_OPTIONS_OID,
3309 if (ret != LDB_SUCCESS) {
3313 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3315 return ldb_next_request(ar->module, search_req);
3318 static int replmd_replicated_uptodate_modify_callback(struct ldb_request *req,
3319 struct ldb_reply *ares)
3321 struct ldb_context *ldb;
3322 struct replmd_replicated_request *ar = talloc_get_type(req->context,
3323 struct replmd_replicated_request);
3324 ldb = ldb_module_get_ctx(ar->module);
3327 return ldb_module_done(ar->req, NULL, NULL,
3328 LDB_ERR_OPERATIONS_ERROR);
3330 if (ares->error != LDB_SUCCESS) {
3331 return ldb_module_done(ar->req, ares->controls,
3332 ares->response, ares->error);
3335 if (ares->type != LDB_REPLY_DONE) {
3336 ldb_set_errstring(ldb, "Invalid reply type\n!");
3337 return ldb_module_done(ar->req, NULL, NULL,
3338 LDB_ERR_OPERATIONS_ERROR);
3343 return ldb_module_done(ar->req, NULL, NULL, LDB_SUCCESS);
3346 static int replmd_replicated_uptodate_modify(struct replmd_replicated_request *ar)
3348 struct ldb_context *ldb;
3349 struct ldb_request *change_req;
3350 enum ndr_err_code ndr_err;
3351 struct ldb_message *msg;
3352 struct replUpToDateVectorBlob ouv;
3353 const struct ldb_val *ouv_value;
3354 const struct drsuapi_DsReplicaCursor2CtrEx *ruv;
3355 struct replUpToDateVectorBlob nuv;
3356 struct ldb_val nuv_value;
3357 struct ldb_message_element *nuv_el = NULL;
3358 const struct GUID *our_invocation_id;
3359 struct ldb_message_element *orf_el = NULL;
3360 struct repsFromToBlob nrf;
3361 struct ldb_val *nrf_value = NULL;
3362 struct ldb_message_element *nrf_el = NULL;
3366 time_t t = time(NULL);
3369 uint32_t instanceType;
3371 ldb = ldb_module_get_ctx(ar->module);
3372 ruv = ar->objs->uptodateness_vector;
3378 unix_to_nt_time(&now, t);
3380 instanceType = ldb_msg_find_attr_as_uint(ar->search_msg, "instanceType", 0);
3381 if (! (instanceType & INSTANCE_TYPE_IS_NC_HEAD)) {
3382 DEBUG(4,(__location__ ": Skipping UDV and repsFrom update as not NC root: %s\n",
3383 ldb_dn_get_linearized(ar->search_msg->dn)));
3384 return ldb_module_done(ar->req, NULL, NULL, LDB_SUCCESS);
3388 * first create the new replUpToDateVector
3390 ouv_value = ldb_msg_find_ldb_val(ar->search_msg, "replUpToDateVector");
3392 ndr_err = ndr_pull_struct_blob(ouv_value, ar, &ouv,
3393 (ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob);
3394 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3395 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3396 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3399 if (ouv.version != 2) {
3400 return replmd_replicated_request_werror(ar, WERR_DS_DRA_INTERNAL_ERROR);
3405 * the new uptodateness vector will at least
3406 * contain 1 entry, one for the source_dsa
3408 * plus optional values from our old vector and the one from the source_dsa
3410 nuv.ctr.ctr2.count = 1 + ouv.ctr.ctr2.count;
3411 if (ruv) nuv.ctr.ctr2.count += ruv->count;
3412 nuv.ctr.ctr2.cursors = talloc_array(ar,
3413 struct drsuapi_DsReplicaCursor2,
3414 nuv.ctr.ctr2.count);
3415 if (!nuv.ctr.ctr2.cursors) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3417 /* first copy the old vector */
3418 for (i=0; i < ouv.ctr.ctr2.count; i++) {
3419 nuv.ctr.ctr2.cursors[ni] = ouv.ctr.ctr2.cursors[i];
3423 /* get our invocation_id if we have one already attached to the ldb */
3424 our_invocation_id = samdb_ntds_invocation_id(ldb);
3426 /* merge in the source_dsa vector is available */
3427 for (i=0; (ruv && i < ruv->count); i++) {
3430 if (our_invocation_id &&
3431 GUID_equal(&ruv->cursors[i].source_dsa_invocation_id,
3432 our_invocation_id)) {
3436 for (j=0; j < ni; j++) {
3437 if (!GUID_equal(&ruv->cursors[i].source_dsa_invocation_id,
3438 &nuv.ctr.ctr2.cursors[j].source_dsa_invocation_id)) {
3445 * we update only the highest_usn and not the latest_sync_success time,
3446 * because the last success stands for direct replication
3448 if (ruv->cursors[i].highest_usn > nuv.ctr.ctr2.cursors[j].highest_usn) {
3449 nuv.ctr.ctr2.cursors[j].highest_usn = ruv->cursors[i].highest_usn;
3454 if (found) continue;
3456 /* if it's not there yet, add it */
3457 nuv.ctr.ctr2.cursors[ni] = ruv->cursors[i];
3462 * merge in the current highwatermark for the source_dsa
3465 for (j=0; j < ni; j++) {
3466 if (!GUID_equal(&ar->objs->source_dsa->source_dsa_invocation_id,
3467 &nuv.ctr.ctr2.cursors[j].source_dsa_invocation_id)) {
3474 * here we update the highest_usn and last_sync_success time
3475 * because we're directly replicating from the source_dsa
3477 * and use the tmp_highest_usn because this is what we have just applied
3480 nuv.ctr.ctr2.cursors[j].highest_usn = ar->objs->source_dsa->highwatermark.tmp_highest_usn;
3481 nuv.ctr.ctr2.cursors[j].last_sync_success = now;
3486 * here we update the highest_usn and last_sync_success time
3487 * because we're directly replicating from the source_dsa
3489 * and use the tmp_highest_usn because this is what we have just applied
3492 nuv.ctr.ctr2.cursors[ni].source_dsa_invocation_id= ar->objs->source_dsa->source_dsa_invocation_id;
3493 nuv.ctr.ctr2.cursors[ni].highest_usn = ar->objs->source_dsa->highwatermark.tmp_highest_usn;
3494 nuv.ctr.ctr2.cursors[ni].last_sync_success = now;
3499 * finally correct the size of the cursors array
3501 nuv.ctr.ctr2.count = ni;
3506 TYPESAFE_QSORT(nuv.ctr.ctr2.cursors, nuv.ctr.ctr2.count, drsuapi_DsReplicaCursor2_compare);
3509 * create the change ldb_message
3511 msg = ldb_msg_new(ar);
3512 if (!msg) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3513 msg->dn = ar->search_msg->dn;
3515 ndr_err = ndr_push_struct_blob(&nuv_value, msg, &nuv,
3516 (ndr_push_flags_fn_t)ndr_push_replUpToDateVectorBlob);
3517 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3518 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3519 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3521 ret = ldb_msg_add_value(msg, "replUpToDateVector", &nuv_value, &nuv_el);
3522 if (ret != LDB_SUCCESS) {
3523 return replmd_replicated_request_error(ar, ret);
3525 nuv_el->flags = LDB_FLAG_MOD_REPLACE;
3528 * now create the new repsFrom value from the given repsFromTo1 structure
3532 nrf.ctr.ctr1 = *ar->objs->source_dsa;
3533 /* and fix some values... */
3534 nrf.ctr.ctr1.consecutive_sync_failures = 0;
3535 nrf.ctr.ctr1.last_success = now;
3536 nrf.ctr.ctr1.last_attempt = now;
3537 nrf.ctr.ctr1.result_last_attempt = WERR_OK;
3538 nrf.ctr.ctr1.highwatermark.highest_usn = nrf.ctr.ctr1.highwatermark.tmp_highest_usn;
3541 * first see if we already have a repsFrom value for the current source dsa
3542 * if so we'll later replace this value
3544 orf_el = ldb_msg_find_element(ar->search_msg, "repsFrom");
3546 for (i=0; i < orf_el->num_values; i++) {
3547 struct repsFromToBlob *trf;
3549 trf = talloc(ar, struct repsFromToBlob);
3550 if (!trf) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3552 ndr_err = ndr_pull_struct_blob(&orf_el->values[i], trf, trf,
3553 (ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob);
3554 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3555 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3556 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3559 if (trf->version != 1) {
3560 return replmd_replicated_request_werror(ar, WERR_DS_DRA_INTERNAL_ERROR);
3564 * we compare the source dsa objectGUID not the invocation_id
3565 * because we want only one repsFrom value per source dsa
3566 * and when the invocation_id of the source dsa has changed we don't need
3567 * the old repsFrom with the old invocation_id
3569 if (!GUID_equal(&trf->ctr.ctr1.source_dsa_obj_guid,
3570 &ar->objs->source_dsa->source_dsa_obj_guid)) {
3576 nrf_value = &orf_el->values[i];
3581 * copy over all old values to the new ldb_message
3583 ret = ldb_msg_add_empty(msg, "repsFrom", 0, &nrf_el);
3584 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3589 * if we haven't found an old repsFrom value for the current source dsa
3590 * we'll add a new value
3593 struct ldb_val zero_value;
3594 ZERO_STRUCT(zero_value);
3595 ret = ldb_msg_add_value(msg, "repsFrom", &zero_value, &nrf_el);
3596 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3598 nrf_value = &nrf_el->values[nrf_el->num_values - 1];
3601 /* we now fill the value which is already attached to ldb_message */
3602 ndr_err = ndr_push_struct_blob(nrf_value, msg,
3604 (ndr_push_flags_fn_t)ndr_push_repsFromToBlob);
3605 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
3606 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
3607 return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
3611 * the ldb_message_element for the attribute, has all the old values and the new one
3612 * so we'll replace the whole attribute with all values
3614 nrf_el->flags = LDB_FLAG_MOD_REPLACE;
3617 char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_MODIFY, msg);
3618 DEBUG(4, ("DRS replication uptodate modify message:\n%s\n", s));
3622 /* prepare the ldb_modify() request */
3623 ret = ldb_build_mod_req(&change_req,
3629 replmd_replicated_uptodate_modify_callback,
3631 LDB_REQ_SET_LOCATION(change_req);
3632 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3634 return ldb_next_request(ar->module, change_req);
3637 static int replmd_replicated_uptodate_search_callback(struct ldb_request *req,
3638 struct ldb_reply *ares)
3640 struct replmd_replicated_request *ar = talloc_get_type(req->context,
3641 struct replmd_replicated_request);
3645 return ldb_module_done(ar->req, NULL, NULL,
3646 LDB_ERR_OPERATIONS_ERROR);
3648 if (ares->error != LDB_SUCCESS &&
3649 ares->error != LDB_ERR_NO_SUCH_OBJECT) {
3650 return ldb_module_done(ar->req, ares->controls,
3651 ares->response, ares->error);
3654 switch (ares->type) {
3655 case LDB_REPLY_ENTRY:
3656 ar->search_msg = talloc_steal(ar, ares->message);
3659 case LDB_REPLY_REFERRAL:
3660 /* we ignore referrals */
3663 case LDB_REPLY_DONE:
3664 if (ar->search_msg == NULL) {
3665 ret = replmd_replicated_request_werror(ar, WERR_DS_DRA_INTERNAL_ERROR);
3667 ret = replmd_replicated_uptodate_modify(ar);
3669 if (ret != LDB_SUCCESS) {
3670 return ldb_module_done(ar->req, NULL, NULL, ret);
3679 static int replmd_replicated_uptodate_vector(struct replmd_replicated_request *ar)
3681 struct ldb_context *ldb;
3683 static const char *attrs[] = {
3684 "replUpToDateVector",
3689 struct ldb_request *search_req;
3691 ldb = ldb_module_get_ctx(ar->module);
3692 ar->search_msg = NULL;
3694 ret = ldb_build_search_req(&search_req,
3697 ar->objs->partition_dn,
3703 replmd_replicated_uptodate_search_callback,
3705 LDB_REQ_SET_LOCATION(search_req);
3706 if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
3708 return ldb_next_request(ar->module, search_req);
3713 static int replmd_extended_replicated_objects(struct ldb_module *module, struct ldb_request *req)
3715 struct ldb_context *ldb;
3716 struct dsdb_extended_replicated_objects *objs;
3717 struct replmd_replicated_request *ar;
3718 struct ldb_control **ctrls;
3721 struct replmd_private *replmd_private =
3722 talloc_get_type(ldb_module_get_private(module), struct replmd_private);
3724 ldb = ldb_module_get_ctx(module);
3726 ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_extended_replicated_objects\n");
3728 objs = talloc_get_type(req->op.extended.data, struct dsdb_extended_replicated_objects);
3730 ldb_debug(ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: invalid extended data\n");
3731 return LDB_ERR_PROTOCOL_ERROR;
3734 if (objs->version != DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION) {
3735 ldb_debug(ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: extended data invalid version [%u != %u]\n",
3736 objs->version, DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION);
3737 return LDB_ERR_PROTOCOL_ERROR;
3740 ar = replmd_ctx_init(module, req);
3742 return LDB_ERR_OPERATIONS_ERROR;
3744 /* Set the flags to have the replmd_op_callback run over the full set of objects */
3745 ar->apply_mode = true;
3747 ar->schema = dsdb_get_schema(ldb, ar);
3749 ldb_debug_set(ldb, LDB_DEBUG_FATAL, "replmd_ctx_init: no loaded schema found\n");
3751 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
3752 return LDB_ERR_CONSTRAINT_VIOLATION;
3755 ctrls = req->controls;
3757 if (req->controls) {
3758 req->controls = talloc_memdup(ar, req->controls,
3759 talloc_get_size(req->controls));
3760 if (!req->controls) return replmd_replicated_request_werror(ar, WERR_NOMEM);
3763 /* This allows layers further down to know if a change came in over replication */
3764 ret = ldb_request_add_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID, false, NULL);
3765 if (ret != LDB_SUCCESS) {
3769 /* If this change contained linked attributes in the body
3770 * (rather than in the links section) we need to update
3771 * backlinks in linked_attributes */
3772 ret = ldb_request_add_control(req, DSDB_CONTROL_APPLY_LINKS, false, NULL);
3773 if (ret != LDB_SUCCESS) {
3777 ar->controls = req->controls;
3778 req->controls = ctrls;
3780 DEBUG(4,("linked_attributes_count=%u\n", objs->linked_attributes_count));
3782 /* save away the linked attributes for the end of the
3784 for (i=0; i<ar->objs->linked_attributes_count; i++) {
3785 struct la_entry *la_entry;
3787 if (replmd_private->la_ctx == NULL) {
3788 replmd_private->la_ctx = talloc_new(replmd_private);
3790 la_entry = talloc(replmd_private->la_ctx, struct la_entry);
3791 if (la_entry == NULL) {
3793 return LDB_ERR_OPERATIONS_ERROR;
3795 la_entry->la = talloc(la_entry, struct drsuapi_DsReplicaLinkedAttribute);
3796 if (la_entry->la == NULL) {
3797 talloc_free(la_entry);
3799 return LDB_ERR_OPERATIONS_ERROR;
3801 *la_entry->la = ar->objs->linked_attributes[i];
3803 /* we need to steal the non-scalars so they stay
3804 around until the end of the transaction */
3805 talloc_steal(la_entry->la, la_entry->la->identifier);
3806 talloc_steal(la_entry->la, la_entry->la->value.blob);
3808 DLIST_ADD(replmd_private->la_list, la_entry);
3811 return replmd_replicated_apply_next(ar);
3815 process one linked attribute structure
3817 static int replmd_process_linked_attribute(struct ldb_module *module,
3818 struct la_entry *la_entry)
3820 struct drsuapi_DsReplicaLinkedAttribute *la = la_entry->la;
3821 struct ldb_context *ldb = ldb_module_get_ctx(module);
3822 struct ldb_message *msg;
3823 TALLOC_CTX *tmp_ctx = talloc_new(la_entry);
3824 const struct dsdb_schema *schema = dsdb_get_schema(ldb, tmp_ctx);
3826 const struct dsdb_attribute *attr;
3827 struct dsdb_dn *dsdb_dn;
3828 uint64_t seq_num = 0;
3829 struct ldb_message_element *old_el;
3831 time_t t = time(NULL);
3832 struct ldb_result *res;
3833 const char *attrs[2];
3834 struct parsed_dn *pdn_list, *pdn;
3835 struct GUID guid = GUID_zero();
3837 bool active = (la->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)?true:false;
3838 const struct GUID *our_invocation_id;
3841 linked_attributes[0]:
3842 &objs->linked_attributes[i]: struct drsuapi_DsReplicaLinkedAttribute
3844 identifier: struct drsuapi_DsReplicaObjectIdentifier
3845 __ndr_size : 0x0000003a (58)
3846 __ndr_size_sid : 0x00000000 (0)
3847 guid : 8e95b6a9-13dd-4158-89db-3220a5be5cc7
3849 __ndr_size_dn : 0x00000000 (0)
3851 attid : DRSUAPI_ATTID_member (0x1F)
3852 value: struct drsuapi_DsAttributeValue
3853 __ndr_size : 0x0000007e (126)
3855 blob : DATA_BLOB length=126
3856 flags : 0x00000001 (1)
3857 1: DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
3858 originating_add_time : Wed Sep 2 22:20:01 2009 EST
3859 meta_data: struct drsuapi_DsReplicaMetaData
3860 version : 0x00000015 (21)
3861 originating_change_time : Wed Sep 2 23:39:07 2009 EST
3862 originating_invocation_id: 794640f3-18cf-40ee-a211-a93992b67a64
3863 originating_usn : 0x000000000001e19c (123292)
3865 (for cases where the link is to a normal DN)
3866 &target: struct drsuapi_DsReplicaObjectIdentifier3
3867 __ndr_size : 0x0000007e (126)
3868 __ndr_size_sid : 0x0000001c (28)
3869 guid : 7639e594-db75-4086-b0d4-67890ae46031
3870 sid : S-1-5-21-2848215498-2472035911-1947525656-19924
3871 __ndr_size_dn : 0x00000022 (34)
3872 dn : 'CN=UOne,OU=TestOU,DC=vsofs8,DC=com'
3875 /* find the attribute being modified */
3876 attr = dsdb_attribute_by_attributeID_id(schema, la->attid);
3878 DEBUG(0, (__location__ ": Unable to find attributeID 0x%x\n", la->attid));
3879 talloc_free(tmp_ctx);
3880 return LDB_ERR_OPERATIONS_ERROR;
3883 attrs[0] = attr->lDAPDisplayName;
3886 /* get the existing message from the db for the object with
3887 this GUID, returning attribute being modified. We will then
3888 use this msg as the basis for a modify call */
3889 ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE, attrs,
3890 DSDB_FLAG_NEXT_MODULE |
3891 DSDB_SEARCH_SEARCH_ALL_PARTITIONS |
3892 DSDB_SEARCH_SHOW_RECYCLED |
3893 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
3894 DSDB_SEARCH_REVEAL_INTERNALS,
3895 "objectGUID=%s", GUID_string(tmp_ctx, &la->identifier->guid));
3896 if (ret != LDB_SUCCESS) {
3897 talloc_free(tmp_ctx);
3900 if (res->count != 1) {
3901 ldb_asprintf_errstring(ldb, "DRS linked attribute for GUID %s - DN not found",
3902 GUID_string(tmp_ctx, &la->identifier->guid));
3903 talloc_free(tmp_ctx);
3904 return LDB_ERR_NO_SUCH_OBJECT;
3908 if (msg->num_elements == 0) {
3909 ret = ldb_msg_add_empty(msg, attr->lDAPDisplayName, LDB_FLAG_MOD_REPLACE, &old_el);
3910 if (ret != LDB_SUCCESS) {
3911 ldb_module_oom(module);
3912 talloc_free(tmp_ctx);
3913 return LDB_ERR_OPERATIONS_ERROR;
3916 old_el = &msg->elements[0];
3917 old_el->flags = LDB_FLAG_MOD_REPLACE;
3920 /* parse the existing links */
3921 ret = get_parsed_dns(module, tmp_ctx, old_el, &pdn_list, attr->syntax->ldap_oid);
3922 if (ret != LDB_SUCCESS) {
3923 talloc_free(tmp_ctx);
3927 /* get our invocationId */
3928 our_invocation_id = samdb_ntds_invocation_id(ldb);
3929 if (!our_invocation_id) {
3930 ldb_debug_set(ldb, LDB_DEBUG_ERROR, __location__ ": unable to find invocationId\n");
3931 talloc_free(tmp_ctx);
3932 return LDB_ERR_OPERATIONS_ERROR;
3935 ret = replmd_check_upgrade_links(pdn_list, old_el->num_values, old_el, our_invocation_id);
3936 if (ret != LDB_SUCCESS) {
3937 talloc_free(tmp_ctx);
3941 status = dsdb_dn_la_from_blob(ldb, attr, schema, tmp_ctx, la->value.blob, &dsdb_dn);
3942 if (!W_ERROR_IS_OK(status)) {
3943 ldb_asprintf_errstring(ldb, "Failed to parsed linked attribute blob for %s on %s - %s\n",
3944 old_el->name, ldb_dn_get_linearized(msg->dn), win_errstr(status));
3945 return LDB_ERR_OPERATIONS_ERROR;
3948 ntstatus = dsdb_get_extended_dn_guid(dsdb_dn->dn, &guid, "GUID");
3949 if (!NT_STATUS_IS_OK(ntstatus) && active) {
3950 ldb_asprintf_errstring(ldb, "Failed to find GUID in linked attribute blob for %s on %s from %s",
3952 ldb_dn_get_linearized(dsdb_dn->dn),
3953 ldb_dn_get_linearized(msg->dn));
3954 return LDB_ERR_OPERATIONS_ERROR;
3957 /* re-resolve the DN by GUID, as the DRS server may give us an
3959 ret = dsdb_module_dn_by_guid(module, dsdb_dn, &guid, &dsdb_dn->dn);
3960 if (ret != LDB_SUCCESS) {
3961 DEBUG(2,(__location__ ": WARNING: Failed to re-resolve GUID %s - using %s",
3962 GUID_string(tmp_ctx, &guid),
3963 ldb_dn_get_linearized(dsdb_dn->dn)));
3966 /* see if this link already exists */
3967 pdn = parsed_dn_find(pdn_list, old_el->num_values, &guid, dsdb_dn->dn);
3969 /* see if this update is newer than what we have already */
3970 struct GUID invocation_id = GUID_zero();
3971 uint32_t version = 0;
3972 uint32_t originating_usn = 0;
3973 NTTIME change_time = 0;
3974 uint32_t rmd_flags = dsdb_dn_rmd_flags(pdn->dsdb_dn->dn);
3976 dsdb_get_extended_dn_guid(pdn->dsdb_dn->dn, &invocation_id, "RMD_INVOCID");
3977 dsdb_get_extended_dn_uint32(pdn->dsdb_dn->dn, &version, "RMD_VERSION");
3978 dsdb_get_extended_dn_uint32(pdn->dsdb_dn->dn, &originating_usn, "RMD_ORIGINATING_USN");
3979 dsdb_get_extended_dn_nttime(pdn->dsdb_dn->dn, &change_time, "RMD_CHANGETIME");
3981 if (!replmd_update_is_newer(&invocation_id,
3982 &la->meta_data.originating_invocation_id,
3984 la->meta_data.version,
3986 la->meta_data.originating_usn,
3988 la->meta_data.originating_change_time)) {
3989 DEBUG(3,("Discarding older DRS linked attribute update to %s on %s from %s\n",
3990 old_el->name, ldb_dn_get_linearized(msg->dn),
3991 GUID_string(tmp_ctx, &la->meta_data.originating_invocation_id)));
3992 talloc_free(tmp_ctx);
3996 /* get a seq_num for this change */
3997 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &seq_num);
3998 if (ret != LDB_SUCCESS) {
3999 talloc_free(tmp_ctx);
4003 if (!(rmd_flags & DSDB_RMD_FLAG_DELETED)) {
4004 /* remove the existing backlink */
4005 ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid, false, attr, false);
4006 if (ret != LDB_SUCCESS) {
4007 talloc_free(tmp_ctx);
4012 ret = replmd_update_la_val(tmp_ctx, pdn->v, dsdb_dn, pdn->dsdb_dn,
4013 &la->meta_data.originating_invocation_id,
4014 la->meta_data.originating_usn, seq_num,
4015 la->meta_data.originating_change_time,
4016 la->meta_data.version,
4018 if (ret != LDB_SUCCESS) {
4019 talloc_free(tmp_ctx);
4024 /* add the new backlink */
4025 ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid, true, attr, false);
4026 if (ret != LDB_SUCCESS) {
4027 talloc_free(tmp_ctx);
4032 /* get a seq_num for this change */
4033 ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &seq_num);
4034 if (ret != LDB_SUCCESS) {
4035 talloc_free(tmp_ctx);
4039 old_el->values = talloc_realloc(msg->elements, old_el->values,
4040 struct ldb_val, old_el->num_values+1);
4041 if (!old_el->values) {
4042 ldb_module_oom(module);
4043 return LDB_ERR_OPERATIONS_ERROR;
4045 old_el->num_values++;
4047 ret = replmd_build_la_val(tmp_ctx, &old_el->values[old_el->num_values-1], dsdb_dn,
4048 &la->meta_data.originating_invocation_id,
4049 la->meta_data.originating_usn, seq_num,
4050 la->meta_data.originating_change_time,
4051 la->meta_data.version,
4052 (la->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)?false:true);
4053 if (ret != LDB_SUCCESS) {
4054 talloc_free(tmp_ctx);
4059 ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid,
4061 if (ret != LDB_SUCCESS) {
4062 talloc_free(tmp_ctx);
4068 /* we only change whenChanged and uSNChanged if the seq_num
4070 if (add_time_element(msg, "whenChanged", t) != LDB_SUCCESS) {
4071 talloc_free(tmp_ctx);
4072 return ldb_operr(ldb);
4075 if (add_uint64_element(ldb, msg, "uSNChanged",
4076 seq_num) != LDB_SUCCESS) {
4077 talloc_free(tmp_ctx);
4078 return ldb_operr(ldb);
4081 old_el = ldb_msg_find_element(msg, attr->lDAPDisplayName);
4082 if (old_el == NULL) {
4083 talloc_free(tmp_ctx);
4084 return ldb_operr(ldb);
4087 ret = dsdb_check_single_valued_link(attr, old_el);
4088 if (ret != LDB_SUCCESS) {
4089 talloc_free(tmp_ctx);
4093 ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE | DSDB_MODIFY_RELAX);
4094 if (ret != LDB_SUCCESS) {
4095 ldb_debug(ldb, LDB_DEBUG_WARNING, "Failed to apply linked attribute change '%s'\n%s\n",
4097 ldb_ldif_message_string(ldb, tmp_ctx, LDB_CHANGETYPE_MODIFY, msg));
4098 talloc_free(tmp_ctx);
4102 talloc_free(tmp_ctx);
4107 static int replmd_extended(struct ldb_module *module, struct ldb_request *req)
4109 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_REPLICATED_OBJECTS_OID) == 0) {
4110 return replmd_extended_replicated_objects(module, req);
4113 return ldb_next_request(module, req);
4118 we hook into the transaction operations to allow us to
4119 perform the linked attribute updates at the end of the whole
4120 transaction. This allows a forward linked attribute to be created
4121 before the object is created. During a vampire, w2k8 sends us linked
4122 attributes before the objects they are part of.
4124 static int replmd_start_transaction(struct ldb_module *module)
4126 /* create our private structure for this transaction */
4127 struct replmd_private *replmd_private = talloc_get_type(ldb_module_get_private(module),
4128 struct replmd_private);
4129 replmd_txn_cleanup(replmd_private);
4131 /* free any leftover mod_usn records from cancelled
4133 while (replmd_private->ncs) {
4134 struct nc_entry *e = replmd_private->ncs;
4135 DLIST_REMOVE(replmd_private->ncs, e);
4139 return ldb_next_start_trans(module);
4143 on prepare commit we loop over our queued la_context structures and
4146 static int replmd_prepare_commit(struct ldb_module *module)
4148 struct replmd_private *replmd_private =
4149 talloc_get_type(ldb_module_get_private(module), struct replmd_private);
4150 struct la_entry *la, *prev;
4151 struct la_backlink *bl;
4154 /* walk the list backwards, to do the first entry first, as we
4155 * added the entries with DLIST_ADD() which puts them at the
4156 * start of the list */
4157 for (la = DLIST_TAIL(replmd_private->la_list); la; la=prev) {
4158 prev = DLIST_PREV(la);
4159 DLIST_REMOVE(replmd_private->la_list, la);
4160 ret = replmd_process_linked_attribute(module, la);
4161 if (ret != LDB_SUCCESS) {
4162 replmd_txn_cleanup(replmd_private);
4167 /* process our backlink list, creating and deleting backlinks
4169 for (bl=replmd_private->la_backlinks; bl; bl=bl->next) {
4170 ret = replmd_process_backlink(module, bl);
4171 if (ret != LDB_SUCCESS) {
4172 replmd_txn_cleanup(replmd_private);
4177 replmd_txn_cleanup(replmd_private);
4179 /* possibly change @REPLCHANGED */
4180 ret = replmd_notify_store(module);
4181 if (ret != LDB_SUCCESS) {
4185 return ldb_next_prepare_commit(module);
4188 static int replmd_del_transaction(struct ldb_module *module)
4190 struct replmd_private *replmd_private =
4191 talloc_get_type(ldb_module_get_private(module), struct replmd_private);
4192 replmd_txn_cleanup(replmd_private);
4194 return ldb_next_del_trans(module);
4198 static const struct ldb_module_ops ldb_repl_meta_data_module_ops = {
4199 .name = "repl_meta_data",
4200 .init_context = replmd_init,
4202 .modify = replmd_modify,
4203 .rename = replmd_rename,
4204 .del = replmd_delete,
4205 .extended = replmd_extended,
4206 .start_transaction = replmd_start_transaction,
4207 .prepare_commit = replmd_prepare_commit,
4208 .del_transaction = replmd_del_transaction,
4211 int ldb_repl_meta_data_module_init(const char *version)
4213 LDB_MODULE_CHECK_VERSION(version);
4214 return ldb_register_module(&ldb_repl_meta_data_module_ops);