4 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
5 Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
7 * NOTICE: this module is NOT released under the GNU LGPL license as
8 * other ldb code. This module is release under the GNU GPL v3 or
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 * Component: ldb partitions module
30 * Description: Implement LDAP partitions
32 * Author: Andrew Bartlett
33 * Author: Stefan Metzmacher
37 #include "lib/ldb/include/ldb.h"
38 #include "lib/ldb/include/ldb_errors.h"
39 #include "lib/ldb/include/ldb_module.h"
40 #include "lib/ldb/include/ldb_private.h"
41 #include "dsdb/samdb/samdb.h"
43 struct partition_private_data {
44 struct dsdb_control_current_partition **partitions;
45 struct ldb_dn **replicate;
49 struct ldb_module *module;
50 struct ldb_request *req;
53 struct partition_context {
54 struct ldb_module *module;
55 struct ldb_request *req;
58 struct part_request *part_req;
60 int finished_requests;
63 static struct partition_context *partition_init_ctx(struct ldb_module *module, struct ldb_request *req)
65 struct partition_context *ac;
67 ac = talloc_zero(req, struct partition_context);
69 ldb_set_errstring(ldb_module_get_ctx(module), "Out of Memory");
79 #define PARTITION_FIND_OP_NOERROR(module, op) do { \
80 while (module && module->ops->op == NULL) module = module->next; \
83 #define PARTITION_FIND_OP(module, op) do { \
84 PARTITION_FIND_OP_NOERROR(module, op); \
85 if (module == NULL) { \
86 ldb_asprintf_errstring(ldb_module_get_ctx(module), \
87 "Unable to find backend operation for " #op ); \
88 return LDB_ERR_OPERATIONS_ERROR; \
93 * helper functions to call the next module in chain
96 static int partition_request(struct ldb_module *module, struct ldb_request *request)
99 switch (request->operation) {
101 PARTITION_FIND_OP(module, search);
102 ret = module->ops->search(module, request);
105 PARTITION_FIND_OP(module, add);
106 ret = module->ops->add(module, request);
109 PARTITION_FIND_OP(module, modify);
110 ret = module->ops->modify(module, request);
113 PARTITION_FIND_OP(module, del);
114 ret = module->ops->del(module, request);
117 PARTITION_FIND_OP(module, rename);
118 ret = module->ops->rename(module, request);
121 PARTITION_FIND_OP(module, extended);
122 ret = module->ops->extended(module, request);
125 PARTITION_FIND_OP(module, request);
126 ret = module->ops->request(module, request);
129 if (ret == LDB_SUCCESS) {
132 if (!ldb_errstring(ldb_module_get_ctx(module))) {
133 /* Set a default error string, to place the blame somewhere */
134 ldb_asprintf_errstring(ldb_module_get_ctx(module),
135 "error in module %s: %s (%d)",
137 ldb_strerror(ret), ret);
142 static struct dsdb_control_current_partition *find_partition(struct partition_private_data *data,
147 /* Look at base DN */
148 /* Figure out which partition it is under */
149 /* Skip the lot if 'data' isn't here yet (initialisation) */
150 for (i=0; data && data->partitions && data->partitions[i]; i++) {
151 if (ldb_dn_compare_base(data->partitions[i]->dn, dn) == 0) {
152 return data->partitions[i];
160 * fire the caller's callback for every entry, but only send 'done' once.
162 static int partition_req_callback(struct ldb_request *req,
163 struct ldb_reply *ares)
165 struct partition_context *ac;
166 struct ldb_module *module;
167 struct ldb_request *nreq;
170 ac = talloc_get_type(req->context, struct partition_context);
173 return ldb_module_done(ac->req, NULL, NULL,
174 LDB_ERR_OPERATIONS_ERROR);
177 if (ares->error != LDB_SUCCESS && !ac->got_success) {
178 return ldb_module_done(ac->req, ares->controls,
179 ares->response, ares->error);
182 switch (ares->type) {
183 case LDB_REPLY_REFERRAL:
184 /* ignore referrals for now */
187 case LDB_REPLY_ENTRY:
188 if (ac->req->operation != LDB_SEARCH) {
189 ldb_set_errstring(ldb_module_get_ctx(ac->module),
190 "partition_req_callback:"
191 " Unsupported reply type for this request");
192 return ldb_module_done(ac->req, NULL, NULL,
193 LDB_ERR_OPERATIONS_ERROR);
195 return ldb_module_send_entry(ac->req, ares->message, ares->controls);
198 if (ares->error == LDB_SUCCESS) {
199 ac->got_success = true;
201 if (ac->req->operation == LDB_EXTENDED) {
202 /* FIXME: check for ares->response, replmd does not fill it ! */
203 if (ares->response) {
204 if (strcmp(ares->response->oid, LDB_EXTENDED_START_TLS_OID) != 0) {
205 ldb_set_errstring(ldb_module_get_ctx(ac->module),
206 "partition_req_callback:"
207 " Unknown extended reply, "
208 "only supports START_TLS");
210 return ldb_module_done(ac->req, NULL, NULL,
211 LDB_ERR_OPERATIONS_ERROR);
216 ac->finished_requests++;
217 if (ac->finished_requests == ac->num_requests) {
218 /* this was the last one, call callback */
219 return ldb_module_done(ac->req, ares->controls,
221 ac->got_success?LDB_SUCCESS:ares->error);
224 /* not the last, now call the next one */
225 module = ac->part_req[ac->finished_requests].module;
226 nreq = ac->part_req[ac->finished_requests].req;
228 ret = partition_request(module, nreq);
229 if (ret != LDB_SUCCESS) {
231 return ldb_module_done(ac->req, NULL, NULL, ret);
241 static int partition_prep_request(struct partition_context *ac,
242 struct dsdb_control_current_partition *partition)
245 struct ldb_request *req;
247 ac->part_req = talloc_realloc(ac, ac->part_req,
249 ac->num_requests + 1);
250 if (ac->part_req == NULL) {
251 ldb_oom(ldb_module_get_ctx(ac->module));
252 return LDB_ERR_OPERATIONS_ERROR;
255 switch (ac->req->operation) {
257 ret = ldb_build_search_req_ex(&req, ldb_module_get_ctx(ac->module),
259 ac->req->op.search.base,
260 ac->req->op.search.scope,
261 ac->req->op.search.tree,
262 ac->req->op.search.attrs,
264 ac, partition_req_callback,
268 ret = ldb_build_add_req(&req, ldb_module_get_ctx(ac->module), ac->part_req,
269 ac->req->op.add.message,
271 ac, partition_req_callback,
275 ret = ldb_build_mod_req(&req, ldb_module_get_ctx(ac->module), ac->part_req,
276 ac->req->op.mod.message,
278 ac, partition_req_callback,
282 ret = ldb_build_del_req(&req, ldb_module_get_ctx(ac->module), ac->part_req,
285 ac, partition_req_callback,
289 ret = ldb_build_rename_req(&req, ldb_module_get_ctx(ac->module), ac->part_req,
290 ac->req->op.rename.olddn,
291 ac->req->op.rename.newdn,
293 ac, partition_req_callback,
297 ret = ldb_build_extended_req(&req, ldb_module_get_ctx(ac->module),
299 ac->req->op.extended.oid,
300 ac->req->op.extended.data,
302 ac, partition_req_callback,
306 ldb_set_errstring(ldb_module_get_ctx(ac->module),
307 "Unsupported request type!");
308 ret = LDB_ERR_UNWILLING_TO_PERFORM;
311 if (ret != LDB_SUCCESS) {
315 ac->part_req[ac->num_requests].req = req;
317 if (ac->req->controls) {
318 req->controls = talloc_memdup(req, ac->req->controls,
319 talloc_get_size(ac->req->controls));
320 if (req->controls == NULL) {
321 ldb_oom(ldb_module_get_ctx(ac->module));
322 return LDB_ERR_OPERATIONS_ERROR;
327 ac->part_req[ac->num_requests].module = partition->module;
329 ret = ldb_request_add_control(req,
330 DSDB_CONTROL_CURRENT_PARTITION_OID,
332 if (ret != LDB_SUCCESS) {
336 if (req->operation == LDB_SEARCH) {
337 /* If the search is for 'more' than this partition,
338 * then change the basedn, so a remote LDAP server
340 if (ldb_dn_compare_base(partition->dn,
341 req->op.search.base) != 0) {
342 req->op.search.base = partition->dn;
347 /* make sure you put the NEXT module here, or
348 * partition_request() will simply loop forever on itself */
349 ac->part_req[ac->num_requests].module = ac->module->next;
357 static int partition_call_first(struct partition_context *ac)
359 return partition_request(ac->part_req[0].module, ac->part_req[0].req);
363 * Send a request down to all the partitions
365 static int partition_send_all(struct ldb_module *module,
366 struct partition_context *ac,
367 struct ldb_request *req)
370 struct partition_private_data *data = talloc_get_type(module->private_data,
371 struct partition_private_data);
372 int ret = partition_prep_request(ac, NULL);
373 if (ret != LDB_SUCCESS) {
376 for (i=0; data && data->partitions && data->partitions[i]; i++) {
377 ret = partition_prep_request(ac, data->partitions[i]);
378 if (ret != LDB_SUCCESS) {
383 /* fire the first one */
384 return partition_call_first(ac);
388 * Figure out which backend a request needs to be aimed at. Some
389 * requests must be replicated to all backends
391 static int partition_replicate(struct ldb_module *module, struct ldb_request *req, struct ldb_dn *dn)
393 struct partition_context *ac;
396 struct dsdb_control_current_partition *partition;
397 struct partition_private_data *data = talloc_get_type(module->private_data,
398 struct partition_private_data);
399 if (!data || !data->partitions) {
400 return ldb_next_request(module, req);
403 if (req->operation != LDB_SEARCH) {
404 /* Is this a special DN, we need to replicate to every backend? */
405 for (i=0; data->replicate && data->replicate[i]; i++) {
406 if (ldb_dn_compare(data->replicate[i],
409 ac = partition_init_ctx(module, req);
411 return LDB_ERR_OPERATIONS_ERROR;
414 return partition_send_all(module, ac, req);
419 /* Otherwise, we need to find the partition to fire it to */
422 partition = find_partition(data, dn);
425 * if we haven't found a matching partition
426 * pass the request to the main ldb
428 * TODO: we should maybe return an error here
429 * if it's not a special dn
432 return ldb_next_request(module, req);
435 ac = partition_init_ctx(module, req);
437 return LDB_ERR_OPERATIONS_ERROR;
440 /* we need to add a control but we never touch the original request */
441 ret = partition_prep_request(ac, partition);
442 if (ret != LDB_SUCCESS) {
446 /* fire the first one */
447 return partition_call_first(ac);
451 static int partition_search(struct ldb_module *module, struct ldb_request *req)
453 struct ldb_control **saved_controls;
456 struct partition_private_data *data = talloc_get_type(module->private_data,
457 struct partition_private_data);
460 /* (later) consider if we should be searching multiple
461 * partitions (for 'invisible' partition behaviour */
463 struct ldb_control *search_control = ldb_request_get_control(req, LDB_CONTROL_SEARCH_OPTIONS_OID);
464 struct ldb_control *domain_scope_control = ldb_request_get_control(req, LDB_CONTROL_DOMAIN_SCOPE_OID);
466 struct ldb_search_options_control *search_options = NULL;
467 if (search_control) {
468 search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
471 /* Remove the domain_scope control, so we don't confuse a backend server */
472 if (domain_scope_control && !save_controls(domain_scope_control, req, &saved_controls)) {
473 ldb_oom(ldb_module_get_ctx(module));
474 return LDB_ERR_OPERATIONS_ERROR;
478 * for now pass down the LDB_CONTROL_SEARCH_OPTIONS_OID control
479 * down as uncritical to make windows 2008 dcpromo happy.
481 if (search_control) {
482 search_control->critical = 0;
486 Generate referrals (look for a partition under this DN) if we don't have the above control specified
489 if (search_options && (search_options->search_options & LDB_SEARCH_OPTION_PHANTOM_ROOT)) {
491 struct partition_context *ac;
492 if ((search_options->search_options & ~LDB_SEARCH_OPTION_PHANTOM_ROOT) == 0) {
493 /* We have processed this flag, so we are done with this control now */
495 /* Remove search control, so we don't confuse a backend server */
496 if (search_control && !save_controls(search_control, req, &saved_controls)) {
497 ldb_oom(ldb_module_get_ctx(module));
498 return LDB_ERR_OPERATIONS_ERROR;
501 ac = partition_init_ctx(module, req);
503 return LDB_ERR_OPERATIONS_ERROR;
506 /* Search from the base DN */
507 if (!req->op.search.base || ldb_dn_is_null(req->op.search.base)) {
508 return partition_send_all(module, ac, req);
510 for (i=0; data && data->partitions && data->partitions[i]; i++) {
511 bool match = false, stop = false;
512 /* Find all partitions under the search base
516 1) the DN we are looking for exactly matches the partition
518 2) the DN we are looking for is a parent of the partition and it isn't
521 3) the DN we are looking for is a child of the partition
523 if (ldb_dn_compare(data->partitions[i]->dn, req->op.search.base) == 0) {
525 if (req->op.search.scope == LDB_SCOPE_BASE) {
530 (ldb_dn_compare_base(req->op.search.base, data->partitions[i]->dn) == 0 &&
531 req->op.search.scope != LDB_SCOPE_BASE)) {
535 ldb_dn_compare_base(data->partitions[i]->dn, req->op.search.base) == 0) {
537 stop = true; /* note that this relies on partition ordering */
540 ret = partition_prep_request(ac, data->partitions[i]);
541 if (ret != LDB_SUCCESS) {
548 /* Perhaps we didn't match any partitions. Try the main partition, only */
549 if (ac->num_requests == 0) {
551 return ldb_next_request(module, req);
554 /* fire the first one */
555 return partition_call_first(ac);
558 /* Handle this like all other requests */
559 if (search_control && (search_options->search_options & ~LDB_SEARCH_OPTION_PHANTOM_ROOT) == 0) {
560 /* We have processed this flag, so we are done with this control now */
562 /* Remove search control, so we don't confuse a backend server */
563 if (search_control && !save_controls(search_control, req, &saved_controls)) {
564 ldb_oom(ldb_module_get_ctx(module));
565 return LDB_ERR_OPERATIONS_ERROR;
569 return partition_replicate(module, req, req->op.search.base);
574 static int partition_add(struct ldb_module *module, struct ldb_request *req)
576 return partition_replicate(module, req, req->op.add.message->dn);
580 static int partition_modify(struct ldb_module *module, struct ldb_request *req)
582 return partition_replicate(module, req, req->op.mod.message->dn);
586 static int partition_delete(struct ldb_module *module, struct ldb_request *req)
588 return partition_replicate(module, req, req->op.del.dn);
592 static int partition_rename(struct ldb_module *module, struct ldb_request *req)
595 struct dsdb_control_current_partition *backend, *backend2;
597 struct partition_private_data *data = talloc_get_type(module->private_data,
598 struct partition_private_data);
600 /* Skip the lot if 'data' isn't here yet (initialisation) */
602 return LDB_ERR_OPERATIONS_ERROR;
605 backend = find_partition(data, req->op.rename.olddn);
606 backend2 = find_partition(data, req->op.rename.newdn);
608 if ((backend && !backend2) || (!backend && backend2)) {
609 return LDB_ERR_AFFECTS_MULTIPLE_DSAS;
612 if (backend != backend2) {
613 ldb_asprintf_errstring(ldb_module_get_ctx(module),
614 "Cannot rename from %s in %s to %s in %s: %s",
615 ldb_dn_get_linearized(req->op.rename.olddn),
616 ldb_dn_get_linearized(backend->dn),
617 ldb_dn_get_linearized(req->op.rename.newdn),
618 ldb_dn_get_linearized(backend2->dn),
619 ldb_strerror(LDB_ERR_AFFECTS_MULTIPLE_DSAS));
620 return LDB_ERR_AFFECTS_MULTIPLE_DSAS;
623 return partition_replicate(module, req, req->op.rename.olddn);
626 /* start a transaction */
627 static int partition_start_trans(struct ldb_module *module)
630 struct partition_private_data *data = talloc_get_type(module->private_data,
631 struct partition_private_data);
632 /* Look at base DN */
633 /* Figure out which partition it is under */
634 /* Skip the lot if 'data' isn't here yet (initialization) */
635 ret = ldb_next_start_trans(module);
636 if (ret != LDB_SUCCESS) {
640 for (i=0; data && data->partitions && data->partitions[i]; i++) {
641 struct ldb_module *next = data->partitions[i]->module;
642 PARTITION_FIND_OP(next, start_transaction);
644 ret = next->ops->start_transaction(next);
645 if (ret != LDB_SUCCESS) {
646 /* Back it out, if it fails on one */
647 for (i--; i >= 0; i--) {
648 next = data->partitions[i]->module;
649 PARTITION_FIND_OP(next, del_transaction);
651 next->ops->del_transaction(next);
653 ldb_next_del_trans(module);
660 /* end a transaction */
661 static int partition_end_trans(struct ldb_module *module)
663 int i, ret, final_ret;
664 struct partition_private_data *data = talloc_get_type(module->private_data,
665 struct partition_private_data);
666 ret = ldb_next_end_trans(module);
667 if (ret != LDB_SUCCESS) {
671 /* if the backend has a prepare_commit op then use that, to ensure
672 that all partitions are committed safely together */
673 for (i=0; data && data->partitions && data->partitions[i]; i++) {
674 struct ldb_module *next_end = data->partitions[i]->module;
675 struct ldb_module *next_prepare = data->partitions[i]->module;
676 struct ldb_module *next_del = data->partitions[i]->module;
678 PARTITION_FIND_OP_NOERROR(next_prepare, prepare_commit);
679 if (next_prepare == NULL) {
683 PARTITION_FIND_OP(next_end, end_transaction);
684 PARTITION_FIND_OP(next_del, del_transaction);
686 if (next_end != next_prepare || next_del != next_end) {
687 ldb_asprintf_errstring(ldb_module_get_ctx(module), "ERROR: Mismatch between prepare and commit ops in ldb module");
688 return LDB_ERR_OPERATIONS_ERROR;
691 ret = next_prepare->ops->prepare_commit(next_prepare);
692 if (ret != LDB_SUCCESS) {
693 /* if one fails, cancel all but this one */
695 for (j=0; data->partitions[j]; j++) {
696 if (j == i) continue;
697 next_del = data->partitions[j]->module;
698 PARTITION_FIND_OP(next_del, del_transaction);
699 next_del->ops->del_transaction(next_del);
701 ldb_next_del_trans(module);
706 /* Look at base DN */
707 /* Figure out which partition it is under */
708 /* Skip the lot if 'data' isn't here yet (initialisation) */
709 final_ret = LDB_SUCCESS;
711 for (i=0; data && data->partitions && data->partitions[i]; i++) {
712 struct ldb_module *next = data->partitions[i]->module;
713 PARTITION_FIND_OP(next, end_transaction);
715 ret = next->ops->end_transaction(next);
716 if (ret != LDB_SUCCESS) {
717 /* this should only be happening if we had a serious
718 OS or hardware error */
719 ldb_asprintf_errstring(ldb_module_get_ctx(module), "ERROR: partition commit error");
727 /* delete a transaction */
728 static int partition_del_trans(struct ldb_module *module)
730 int i, ret, ret2 = LDB_SUCCESS;
731 struct partition_private_data *data = talloc_get_type(module->private_data,
732 struct partition_private_data);
733 ret = ldb_next_del_trans(module);
734 if (ret != LDB_SUCCESS) {
738 /* Look at base DN */
739 /* Figure out which partition it is under */
740 /* Skip the lot if 'data' isn't here yet (initialistion) */
741 for (i=0; data && data->partitions && data->partitions[i]; i++) {
742 struct ldb_module *next = data->partitions[i]->module;
743 PARTITION_FIND_OP(next, del_transaction);
745 ret = next->ops->del_transaction(next);
746 if (ret != LDB_SUCCESS) {
754 /* FIXME: This function is still semi-async */
755 static int partition_sequence_number(struct ldb_module *module, struct ldb_request *req)
758 uint64_t seq_number = 0;
759 uint64_t timestamp_sequence = 0;
760 uint64_t timestamp = 0;
761 struct partition_private_data *data = talloc_get_type(module->private_data,
762 struct partition_private_data);
763 struct ldb_seqnum_request *seq;
764 struct ldb_seqnum_result *seqr;
765 struct ldb_request *treq;
766 struct ldb_seqnum_request *tseq;
767 struct ldb_seqnum_result *tseqr;
768 struct ldb_extended *ext;
769 struct ldb_result *res;
771 seq = talloc_get_type(req->op.extended.data, struct ldb_seqnum_request);
775 case LDB_SEQ_HIGHEST_SEQ:
776 res = talloc_zero(req, struct ldb_result);
778 return LDB_ERR_OPERATIONS_ERROR;
780 tseq = talloc_zero(res, struct ldb_seqnum_request);
783 return LDB_ERR_OPERATIONS_ERROR;
785 tseq->type = seq->type;
787 ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
788 LDB_EXTENDED_SEQUENCE_NUMBER,
792 ldb_extended_default_callback,
794 ret = ldb_next_request(module, treq);
795 if (ret == LDB_SUCCESS) {
796 ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
798 if (ret != LDB_SUCCESS) {
802 seqr = talloc_get_type(res->extended->data,
803 struct ldb_seqnum_result);
804 if (seqr->flags & LDB_SEQ_TIMESTAMP_SEQUENCE) {
805 timestamp_sequence = seqr->seq_num;
807 seq_number += seqr->seq_num;
811 /* Skip the lot if 'data' isn't here yet (initialisation) */
812 for (i=0; data && data->partitions && data->partitions[i]; i++) {
814 res = talloc_zero(req, struct ldb_result);
816 return LDB_ERR_OPERATIONS_ERROR;
818 tseq = talloc_zero(res, struct ldb_seqnum_request);
821 return LDB_ERR_OPERATIONS_ERROR;
823 tseq->type = seq->type;
825 ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
826 LDB_EXTENDED_SEQUENCE_NUMBER,
830 ldb_extended_default_callback,
832 if (ret != LDB_SUCCESS) {
837 ret = ldb_request_add_control(treq,
838 DSDB_CONTROL_CURRENT_PARTITION_OID,
839 false, data->partitions[i]);
840 if (ret != LDB_SUCCESS) {
845 ret = partition_request(data->partitions[i]->module, treq);
846 if (ret != LDB_SUCCESS) {
850 ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
851 if (ret != LDB_SUCCESS) {
855 tseqr = talloc_get_type(res->extended->data,
856 struct ldb_seqnum_result);
857 if (tseqr->flags & LDB_SEQ_TIMESTAMP_SEQUENCE) {
858 timestamp_sequence = MAX(timestamp_sequence,
861 seq_number += tseqr->seq_num;
866 case LDB_SEQ_HIGHEST_TIMESTAMP:
868 res = talloc_zero(req, struct ldb_result);
870 return LDB_ERR_OPERATIONS_ERROR;
873 tseq = talloc_zero(res, struct ldb_seqnum_request);
876 return LDB_ERR_OPERATIONS_ERROR;
878 tseq->type = LDB_SEQ_HIGHEST_TIMESTAMP;
880 ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
881 LDB_EXTENDED_SEQUENCE_NUMBER,
885 ldb_extended_default_callback,
887 if (ret != LDB_SUCCESS) {
892 ret = ldb_next_request(module, treq);
893 if (ret != LDB_SUCCESS) {
897 ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
898 if (ret != LDB_SUCCESS) {
903 tseqr = talloc_get_type(res->extended->data,
904 struct ldb_seqnum_result);
905 timestamp = tseqr->seq_num;
909 /* Skip the lot if 'data' isn't here yet (initialisation) */
910 for (i=0; data && data->partitions && data->partitions[i]; i++) {
912 res = talloc_zero(req, struct ldb_result);
914 return LDB_ERR_OPERATIONS_ERROR;
917 tseq = talloc_zero(res, struct ldb_seqnum_request);
920 return LDB_ERR_OPERATIONS_ERROR;
922 tseq->type = LDB_SEQ_HIGHEST_TIMESTAMP;
924 ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
925 LDB_EXTENDED_SEQUENCE_NUMBER,
929 ldb_extended_default_callback,
931 if (ret != LDB_SUCCESS) {
936 ret = ldb_request_add_control(treq,
937 DSDB_CONTROL_CURRENT_PARTITION_OID,
938 false, data->partitions[i]);
939 if (ret != LDB_SUCCESS) {
944 ret = partition_request(data->partitions[i]->module, treq);
945 if (ret != LDB_SUCCESS) {
949 ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
950 if (ret != LDB_SUCCESS) {
955 tseqr = talloc_get_type(res->extended->data,
956 struct ldb_seqnum_result);
957 timestamp = MAX(timestamp, tseqr->seq_num);
965 ext = talloc_zero(req, struct ldb_extended);
967 return LDB_ERR_OPERATIONS_ERROR;
969 seqr = talloc_zero(ext, struct ldb_seqnum_result);
972 return LDB_ERR_OPERATIONS_ERROR;
974 ext->oid = LDB_EXTENDED_SEQUENCE_NUMBER;
979 case LDB_SEQ_HIGHEST_SEQ:
981 /* Has someone above set a timebase sequence? */
982 if (timestamp_sequence) {
983 seqr->seq_num = (((unsigned long long)timestamp << 24) | (seq_number & 0xFFFFFF));
985 seqr->seq_num = seq_number;
988 if (timestamp_sequence > seqr->seq_num) {
989 seqr->seq_num = timestamp_sequence;
990 seqr->flags |= LDB_SEQ_TIMESTAMP_SEQUENCE;
993 seqr->flags |= LDB_SEQ_GLOBAL_SEQUENCE;
995 case LDB_SEQ_HIGHEST_TIMESTAMP:
996 seqr->seq_num = timestamp;
1000 if (seq->type == LDB_SEQ_NEXT) {
1004 /* send request done */
1005 return ldb_module_done(req, NULL, ext, LDB_SUCCESS);
1008 static int partition_extended_replicated_objects(struct ldb_module *module, struct ldb_request *req)
1010 struct dsdb_extended_replicated_objects *ext;
1012 ext = talloc_get_type(req->op.extended.data, struct dsdb_extended_replicated_objects);
1014 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_FATAL, "partition_extended_replicated_objects: invalid extended data\n");
1015 return LDB_ERR_PROTOCOL_ERROR;
1018 if (ext->version != DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION) {
1019 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_FATAL, "partition_extended_replicated_objects: extended data invalid version [%u != %u]\n",
1020 ext->version, DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION);
1021 return LDB_ERR_PROTOCOL_ERROR;
1024 return partition_replicate(module, req, ext->partition_dn);
1027 static int partition_extended_schema_update_now(struct ldb_module *module, struct ldb_request *req)
1029 struct dsdb_control_current_partition *partition;
1030 struct partition_private_data *data;
1031 struct ldb_dn *schema_dn;
1032 struct partition_context *ac;
1035 schema_dn = talloc_get_type(req->op.extended.data, struct ldb_dn);
1037 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_FATAL, "partition_extended: invalid extended data\n");
1038 return LDB_ERR_PROTOCOL_ERROR;
1041 data = talloc_get_type(module->private_data, struct partition_private_data);
1043 return LDB_ERR_OPERATIONS_ERROR;
1046 partition = find_partition( data, schema_dn );
1048 return ldb_next_request(module, req);
1051 ac = partition_init_ctx(module, req);
1053 return LDB_ERR_OPERATIONS_ERROR;
1056 /* we need to add a control but we never touch the original request */
1057 ret = partition_prep_request(ac, partition);
1058 if (ret != LDB_SUCCESS) {
1062 /* fire the first one */
1063 return partition_call_first(ac);
1068 static int partition_extended(struct ldb_module *module, struct ldb_request *req)
1070 struct partition_private_data *data;
1071 struct partition_context *ac;
1073 data = talloc_get_type(module->private_data, struct partition_private_data);
1074 if (!data || !data->partitions) {
1075 return ldb_next_request(module, req);
1078 if (strcmp(req->op.extended.oid, LDB_EXTENDED_SEQUENCE_NUMBER) == 0) {
1079 return partition_sequence_number(module, req);
1082 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_REPLICATED_OBJECTS_OID) == 0) {
1083 return partition_extended_replicated_objects(module, req);
1086 /* forward schemaUpdateNow operation to schema_fsmo module*/
1087 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID) == 0) {
1088 return partition_extended_schema_update_now( module, req );
1092 * as the extended operation has no dn
1093 * we need to send it to all partitions
1096 ac = partition_init_ctx(module, req);
1098 return LDB_ERR_OPERATIONS_ERROR;
1101 return partition_send_all(module, ac, req);
1104 static int partition_sort_compare(const void *v1, const void *v2)
1106 const struct dsdb_control_current_partition *p1;
1107 const struct dsdb_control_current_partition *p2;
1109 p1 = *((struct dsdb_control_current_partition * const*)v1);
1110 p2 = *((struct dsdb_control_current_partition * const*)v2);
1112 return ldb_dn_compare(p1->dn, p2->dn);
1115 static int partition_init(struct ldb_module *module)
1118 TALLOC_CTX *mem_ctx = talloc_new(module);
1119 const char *attrs[] = { "partition", "replicateEntries", "modules", NULL };
1120 struct ldb_result *res;
1121 struct ldb_message *msg;
1122 struct ldb_message_element *partition_attributes;
1123 struct ldb_message_element *replicate_attributes;
1124 struct ldb_message_element *modules_attributes;
1126 struct partition_private_data *data;
1129 return LDB_ERR_OPERATIONS_ERROR;
1132 data = talloc(mem_ctx, struct partition_private_data);
1134 return LDB_ERR_OPERATIONS_ERROR;
1137 ret = ldb_search(ldb_module_get_ctx(module), mem_ctx, &res,
1138 ldb_dn_new(mem_ctx, ldb_module_get_ctx(module), "@PARTITION"),
1139 LDB_SCOPE_BASE, attrs, NULL);
1140 if (ret != LDB_SUCCESS) {
1141 talloc_free(mem_ctx);
1144 if (res->count == 0) {
1145 talloc_free(mem_ctx);
1146 return ldb_next_init(module);
1149 if (res->count > 1) {
1150 talloc_free(mem_ctx);
1151 return LDB_ERR_CONSTRAINT_VIOLATION;
1156 partition_attributes = ldb_msg_find_element(msg, "partition");
1157 if (!partition_attributes) {
1158 ldb_set_errstring(ldb_module_get_ctx(module), "partition_init: no partitions specified");
1159 talloc_free(mem_ctx);
1160 return LDB_ERR_CONSTRAINT_VIOLATION;
1162 data->partitions = talloc_array(data, struct dsdb_control_current_partition *, partition_attributes->num_values + 1);
1163 if (!data->partitions) {
1164 talloc_free(mem_ctx);
1165 return LDB_ERR_OPERATIONS_ERROR;
1167 for (i=0; i < partition_attributes->num_values; i++) {
1168 char *base = talloc_strdup(data->partitions, (char *)partition_attributes->values[i].data);
1169 char *p = strchr(base, ':');
1171 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1173 "invalid form for partition record (missing ':'): %s", base);
1174 talloc_free(mem_ctx);
1175 return LDB_ERR_CONSTRAINT_VIOLATION;
1180 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1182 "invalid form for partition record (missing backend database): %s", base);
1183 talloc_free(mem_ctx);
1184 return LDB_ERR_CONSTRAINT_VIOLATION;
1186 data->partitions[i] = talloc(data->partitions, struct dsdb_control_current_partition);
1187 if (!data->partitions[i]) {
1188 talloc_free(mem_ctx);
1189 return LDB_ERR_OPERATIONS_ERROR;
1191 data->partitions[i]->version = DSDB_CONTROL_CURRENT_PARTITION_VERSION;
1193 data->partitions[i]->dn = ldb_dn_new(data->partitions[i], ldb_module_get_ctx(module), base);
1194 if (!data->partitions[i]->dn) {
1195 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1196 "partition_init: invalid DN in partition record: %s", base);
1197 talloc_free(mem_ctx);
1198 return LDB_ERR_CONSTRAINT_VIOLATION;
1201 data->partitions[i]->backend = samdb_relative_path(ldb_module_get_ctx(module),
1202 data->partitions[i],
1204 if (!data->partitions[i]->backend) {
1205 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1206 "partition_init: unable to determine an relative path for partition: %s", base);
1207 talloc_free(mem_ctx);
1209 ret = ldb_connect_backend(ldb_module_get_ctx(module), data->partitions[i]->backend, NULL, &data->partitions[i]->module);
1210 if (ret != LDB_SUCCESS) {
1211 talloc_free(mem_ctx);
1215 data->partitions[i] = NULL;
1217 /* sort these into order, most to least specific */
1218 qsort(data->partitions, partition_attributes->num_values,
1219 sizeof(*data->partitions), partition_sort_compare);
1221 for (i=0; data->partitions[i]; i++) {
1222 struct ldb_request *req;
1223 req = talloc_zero(mem_ctx, struct ldb_request);
1225 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR, "partition: Out of memory!\n");
1226 talloc_free(mem_ctx);
1227 return LDB_ERR_OPERATIONS_ERROR;
1230 req->operation = LDB_REQ_REGISTER_PARTITION;
1231 req->op.reg_partition.dn = data->partitions[i]->dn;
1232 req->callback = ldb_op_default_callback;
1234 ldb_set_timeout(ldb_module_get_ctx(module), req, 0);
1236 req->handle = ldb_handle_new(req, ldb_module_get_ctx(module));
1237 if (req->handle == NULL) {
1238 return LDB_ERR_OPERATIONS_ERROR;
1241 ret = ldb_request(ldb_module_get_ctx(module), req);
1242 if (ret == LDB_SUCCESS) {
1243 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1245 if (ret != LDB_SUCCESS) {
1246 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR, "partition: Unable to register partition with rootdse!\n");
1247 talloc_free(mem_ctx);
1248 return LDB_ERR_OTHER;
1253 replicate_attributes = ldb_msg_find_element(msg, "replicateEntries");
1254 if (!replicate_attributes) {
1255 data->replicate = NULL;
1257 data->replicate = talloc_array(data, struct ldb_dn *, replicate_attributes->num_values + 1);
1258 if (!data->replicate) {
1259 talloc_free(mem_ctx);
1260 return LDB_ERR_OPERATIONS_ERROR;
1263 for (i=0; i < replicate_attributes->num_values; i++) {
1264 data->replicate[i] = ldb_dn_from_ldb_val(data->replicate, ldb_module_get_ctx(module), &replicate_attributes->values[i]);
1265 if (!ldb_dn_validate(data->replicate[i])) {
1266 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1268 "invalid DN in partition replicate record: %s",
1269 replicate_attributes->values[i].data);
1270 talloc_free(mem_ctx);
1271 return LDB_ERR_CONSTRAINT_VIOLATION;
1274 data->replicate[i] = NULL;
1277 /* Make the private data available to any searches the modules may trigger in initialisation */
1278 module->private_data = data;
1279 talloc_steal(module, data);
1281 modules_attributes = ldb_msg_find_element(msg, "modules");
1282 if (modules_attributes) {
1283 for (i=0; i < modules_attributes->num_values; i++) {
1284 struct ldb_dn *base_dn;
1286 struct dsdb_control_current_partition *partition = NULL;
1287 const char **modules = NULL;
1289 char *base = talloc_strdup(data->partitions, (char *)modules_attributes->values[i].data);
1290 char *p = strchr(base, ':');
1292 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1294 "invalid form for partition module record (missing ':'): %s", base);
1295 talloc_free(mem_ctx);
1296 return LDB_ERR_CONSTRAINT_VIOLATION;
1301 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1303 "invalid form for partition module record (missing backend database): %s", base);
1304 talloc_free(mem_ctx);
1305 return LDB_ERR_CONSTRAINT_VIOLATION;
1308 modules = ldb_modules_list_from_string(ldb_module_get_ctx(module), mem_ctx,
1311 base_dn = ldb_dn_new(mem_ctx, ldb_module_get_ctx(module), base);
1312 if (!ldb_dn_validate(base_dn)) {
1313 talloc_free(mem_ctx);
1314 return LDB_ERR_OPERATIONS_ERROR;
1317 for (partition_idx = 0; data->partitions[partition_idx]; partition_idx++) {
1318 if (ldb_dn_compare(data->partitions[partition_idx]->dn, base_dn) == 0) {
1319 partition = data->partitions[partition_idx];
1325 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1327 "invalid form for partition module record (no such partition): %s", base);
1328 talloc_free(mem_ctx);
1329 return LDB_ERR_CONSTRAINT_VIOLATION;
1332 ret = ldb_load_modules_list(ldb_module_get_ctx(module), modules, partition->module, &partition->module);
1333 if (ret != LDB_SUCCESS) {
1334 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1336 "loading backend for %s failed: %s",
1337 base, ldb_errstring(ldb_module_get_ctx(module)));
1338 talloc_free(mem_ctx);
1341 ret = ldb_init_module_chain(ldb_module_get_ctx(module), partition->module);
1342 if (ret != LDB_SUCCESS) {
1343 ldb_asprintf_errstring(ldb_module_get_ctx(module),
1345 "initialising backend for %s failed: %s",
1346 base, ldb_errstring(ldb_module_get_ctx(module)));
1347 talloc_free(mem_ctx);
1353 ret = ldb_mod_register_control(module, LDB_CONTROL_DOMAIN_SCOPE_OID);
1354 if (ret != LDB_SUCCESS) {
1355 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
1356 "partition: Unable to register control with rootdse!\n");
1357 return LDB_ERR_OPERATIONS_ERROR;
1360 ret = ldb_mod_register_control(module, LDB_CONTROL_SEARCH_OPTIONS_OID);
1361 if (ret != LDB_SUCCESS) {
1362 ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
1363 "partition: Unable to register control with rootdse!\n");
1364 return LDB_ERR_OPERATIONS_ERROR;
1367 talloc_free(mem_ctx);
1368 return ldb_next_init(module);
1371 _PUBLIC_ const struct ldb_module_ops ldb_partition_module_ops = {
1372 .name = "partition",
1373 .init_context = partition_init,
1374 .search = partition_search,
1375 .add = partition_add,
1376 .modify = partition_modify,
1377 .del = partition_delete,
1378 .rename = partition_rename,
1379 .extended = partition_extended,
1380 .start_transaction = partition_start_trans,
1381 .end_transaction = partition_end_trans,
1382 .del_transaction = partition_del_trans,