2 Unix SMB/CIFS implementation.
4 implement the DSGetNCChanges call
6 Copyright (C) Anatoliy Atanasov 2009
7 Copyright (C) Andrew Tridgell 2009
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "rpc_server/dcerpc_server.h"
25 #include "dsdb/samdb/samdb.h"
26 #include "param/param.h"
27 #include "librpc/gen_ndr/ndr_drsblobs.h"
28 #include "librpc/gen_ndr/ndr_drsuapi.h"
29 #include "librpc/gen_ndr/ndr_security.h"
30 #include "rpc_server/drsuapi/dcesrv_drsuapi.h"
31 #include "rpc_server/dcerpc_server_proto.h"
32 #include "../libcli/drsuapi/drsuapi.h"
33 #include "libcli/security/security.h"
34 #include "libcli/security/session.h"
35 #include "lib/util/binsearch.h"
36 #include "lib/util/tsort.h"
37 #include "auth/session.h"
38 #include "dsdb/common/util.h"
41 build a DsReplicaObjectIdentifier from a ldb msg
43 static struct drsuapi_DsReplicaObjectIdentifier *get_object_identifier(TALLOC_CTX *mem_ctx,
44 struct ldb_message *msg)
46 struct drsuapi_DsReplicaObjectIdentifier *identifier;
49 identifier = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
50 if (identifier == NULL) {
54 identifier->dn = ldb_dn_alloc_linearized(identifier, msg->dn);
55 identifier->guid = samdb_result_guid(msg, "objectGUID");
57 sid = samdb_result_dom_sid(identifier, msg, "objectSid");
59 identifier->sid = *sid;
61 ZERO_STRUCT(identifier->sid);
66 static int udv_compare(const struct GUID *guid1, struct GUID guid2)
68 return GUID_compare(guid1, &guid2);
72 see if we can filter an attribute using the uptodateness_vector
74 static bool udv_filter(const struct drsuapi_DsReplicaCursorCtrEx *udv,
75 const struct GUID *originating_invocation_id,
76 uint64_t originating_usn)
78 const struct drsuapi_DsReplicaCursor *c;
79 if (udv == NULL) return false;
80 BINARY_ARRAY_SEARCH(udv->cursors, udv->count, source_dsa_invocation_id,
81 originating_invocation_id, udv_compare, c);
82 if (c && originating_usn <= c->highest_usn) {
89 static int attid_cmp(enum drsuapi_DsAttributeId a1, enum drsuapi_DsAttributeId a2)
91 if (a1 == a2) return 0;
92 return ((uint32_t)a1) > ((uint32_t)a2) ? 1 : -1;
96 check if an attribute is in a partial_attribute_set
98 static bool check_partial_attribute_set(const struct dsdb_attribute *sa,
99 struct drsuapi_DsPartialAttributeSet *pas)
101 enum drsuapi_DsAttributeId *result;
102 BINARY_ARRAY_SEARCH_V(pas->attids, pas->num_attids, (enum drsuapi_DsAttributeId)sa->attributeID_id,
104 return result != NULL;
109 drsuapi_DsGetNCChanges for one object
111 static WERROR get_nc_changes_build_object(struct drsuapi_DsReplicaObjectListItemEx *obj,
112 struct ldb_message *msg,
113 struct ldb_context *sam_ctx,
114 struct ldb_dn *ncRoot_dn,
116 struct dsdb_schema *schema,
117 DATA_BLOB *session_key,
118 uint64_t highest_usn,
119 uint32_t replica_flags,
120 struct drsuapi_DsPartialAttributeSet *partial_attribute_set,
121 struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector,
122 enum drsuapi_DsExtendedOperation extended_op)
124 const struct ldb_val *md_value;
126 struct replPropertyMetaDataBlob md;
128 enum ndr_err_code ndr_err;
131 const struct dsdb_attribute *rdn_sa;
132 unsigned int instanceType;
133 struct dsdb_syntax_ctx syntax_ctx;
135 /* make dsdb sytanx context for conversions */
136 dsdb_syntax_ctx_init(&syntax_ctx, sam_ctx, schema);
137 syntax_ctx.is_schema_nc = is_schema_nc;
139 instanceType = ldb_msg_find_attr_as_uint(msg, "instanceType", 0);
140 if (instanceType & INSTANCE_TYPE_IS_NC_HEAD) {
141 obj->is_nc_prefix = true;
142 obj->parent_object_guid = NULL;
144 obj->is_nc_prefix = false;
145 obj->parent_object_guid = talloc(obj, struct GUID);
146 if (obj->parent_object_guid == NULL) {
147 return WERR_DS_DRA_INTERNAL_ERROR;
149 *obj->parent_object_guid = samdb_result_guid(msg, "parentGUID");
150 if (GUID_all_zero(obj->parent_object_guid)) {
151 DEBUG(0,(__location__ ": missing parentGUID for %s\n",
152 ldb_dn_get_linearized(msg->dn)));
153 return WERR_DS_DRA_INTERNAL_ERROR;
156 obj->next_object = NULL;
158 md_value = ldb_msg_find_ldb_val(msg, "replPropertyMetaData");
160 /* nothing to send */
164 if (instanceType & INSTANCE_TYPE_UNINSTANT) {
165 /* don't send uninstantiated objects */
169 ndr_err = ndr_pull_struct_blob(md_value, obj, &md,
170 (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
171 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
172 return WERR_DS_DRA_INTERNAL_ERROR;
175 if (md.version != 1) {
176 return WERR_DS_DRA_INTERNAL_ERROR;
179 rdn = ldb_dn_get_rdn_name(msg->dn);
181 DEBUG(0,(__location__ ": No rDN for %s\n", ldb_dn_get_linearized(msg->dn)));
182 return WERR_DS_DRA_INTERNAL_ERROR;
185 rdn_sa = dsdb_attribute_by_lDAPDisplayName(schema, rdn);
186 if (rdn_sa == NULL) {
187 DEBUG(0,(__location__ ": Can't find dsds_attribute for rDN %s in %s\n",
188 rdn, ldb_dn_get_linearized(msg->dn)));
189 return WERR_DS_DRA_INTERNAL_ERROR;
192 obj->meta_data_ctr = talloc(obj, struct drsuapi_DsReplicaMetaDataCtr);
193 attids = talloc_array(obj, uint32_t, md.ctr.ctr1.count);
195 obj->object.identifier = get_object_identifier(obj, msg);
196 if (obj->object.identifier == NULL) {
199 dom_sid_split_rid(NULL, &obj->object.identifier->sid, NULL, &rid);
201 obj->meta_data_ctr->meta_data = talloc_array(obj, struct drsuapi_DsReplicaMetaData, md.ctr.ctr1.count);
202 for (n=i=0; i<md.ctr.ctr1.count; i++) {
203 const struct dsdb_attribute *sa;
204 bool force_attribute = false;
206 /* if the attribute has not changed, and it is not the
207 instanceType then don't include it */
208 if (md.ctr.ctr1.array[i].local_usn < highest_usn &&
209 extended_op != DRSUAPI_EXOP_REPL_SECRET &&
210 md.ctr.ctr1.array[i].attid != DRSUAPI_ATTRIBUTE_instanceType) continue;
212 /* don't include the rDN */
213 if (md.ctr.ctr1.array[i].attid == rdn_sa->attributeID_id) continue;
215 sa = dsdb_attribute_by_attributeID_id(schema, md.ctr.ctr1.array[i].attid);
217 DEBUG(0,(__location__ ": Failed to find attribute in schema for attrid %u mentioned in replPropertyMetaData of %s\n",
218 (unsigned int)md.ctr.ctr1.array[i].attid,
219 ldb_dn_get_linearized(msg->dn)));
220 return WERR_DS_DRA_INTERNAL_ERROR;
224 struct ldb_message_element *el;
225 el = ldb_msg_find_element(msg, sa->lDAPDisplayName);
226 if (el && el->num_values && dsdb_dn_is_upgraded_link_val(&el->values[0])) {
227 /* don't send upgraded links inline */
232 if (extended_op == DRSUAPI_EXOP_REPL_SECRET &&
233 !dsdb_attr_in_rodc_fas(sa)) {
234 force_attribute = true;
235 DEBUG(4,("Forcing attribute %s in %s\n",
236 sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
239 /* filter by uptodateness_vector */
240 if (md.ctr.ctr1.array[i].attid != DRSUAPI_ATTRIBUTE_instanceType &&
242 udv_filter(uptodateness_vector,
243 &md.ctr.ctr1.array[i].originating_invocation_id,
244 md.ctr.ctr1.array[i].originating_usn)) {
248 /* filter by partial_attribute_set */
249 if (partial_attribute_set && !check_partial_attribute_set(sa, partial_attribute_set)) {
253 obj->meta_data_ctr->meta_data[n].originating_change_time = md.ctr.ctr1.array[i].originating_change_time;
254 obj->meta_data_ctr->meta_data[n].version = md.ctr.ctr1.array[i].version;
255 obj->meta_data_ctr->meta_data[n].originating_invocation_id = md.ctr.ctr1.array[i].originating_invocation_id;
256 obj->meta_data_ctr->meta_data[n].originating_usn = md.ctr.ctr1.array[i].originating_usn;
257 attids[n] = md.ctr.ctr1.array[i].attid;
261 /* ignore it if its an empty change. Note that renames always
262 * change the 'name' attribute, so they won't be ignored by
265 (n == 1 && attids[0] == DRSUAPI_ATTRIBUTE_instanceType)) {
266 talloc_free(obj->meta_data_ctr);
267 obj->meta_data_ctr = NULL;
271 obj->meta_data_ctr->count = n;
273 obj->object.flags = DRSUAPI_DS_REPLICA_OBJECT_FROM_MASTER;
274 obj->object.attribute_ctr.num_attributes = obj->meta_data_ctr->count;
275 obj->object.attribute_ctr.attributes = talloc_array(obj, struct drsuapi_DsReplicaAttribute,
276 obj->object.attribute_ctr.num_attributes);
279 * Note that the meta_data array and the attributes array must
280 * be the same size and in the same order
282 for (i=0; i<obj->object.attribute_ctr.num_attributes; i++) {
283 struct ldb_message_element *el;
285 const struct dsdb_attribute *sa;
287 sa = dsdb_attribute_by_attributeID_id(schema, attids[i]);
289 DEBUG(0,("Unable to find attributeID %u in schema\n", attids[i]));
290 return WERR_DS_DRA_INTERNAL_ERROR;
293 el = ldb_msg_find_element(msg, sa->lDAPDisplayName);
295 /* this happens for attributes that have been removed */
296 DEBUG(5,("No element '%s' for attributeID %u in message\n",
297 sa->lDAPDisplayName, attids[i]));
298 ZERO_STRUCT(obj->object.attribute_ctr.attributes[i]);
299 obj->object.attribute_ctr.attributes[i].attid =
300 dsdb_attribute_get_attid(sa, syntax_ctx.is_schema_nc);
302 werr = sa->syntax->ldb_to_drsuapi(&syntax_ctx, sa, el, obj,
303 &obj->object.attribute_ctr.attributes[i]);
304 if (!W_ERROR_IS_OK(werr)) {
305 DEBUG(0,("Unable to convert %s to DRS object - %s\n",
306 sa->lDAPDisplayName, win_errstr(werr)));
309 /* if DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING is set
310 * check if attribute is secret and send a null value
312 if (replica_flags & DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING) {
313 drsuapi_process_secret_attribute(&obj->object.attribute_ctr.attributes[i],
314 &obj->meta_data_ctr->meta_data[i]);
316 /* some attributes needs to be encrypted
318 werr = drsuapi_encrypt_attribute(obj, session_key, rid,
319 &obj->object.attribute_ctr.attributes[i]);
320 if (!W_ERROR_IS_OK(werr)) {
321 DEBUG(0,("Unable to encrypt %s in DRS object - %s\n",
322 sa->lDAPDisplayName, win_errstr(werr)));
333 add one linked attribute from an object to the list of linked
334 attributes in a getncchanges request
336 static WERROR get_nc_changes_add_la(TALLOC_CTX *mem_ctx,
337 struct ldb_context *sam_ctx,
338 const struct dsdb_schema *schema,
339 const struct dsdb_attribute *sa,
340 struct ldb_message *msg,
341 struct dsdb_dn *dsdb_dn,
342 struct drsuapi_DsReplicaLinkedAttribute **la_list,
345 struct drsuapi_DsReplicaLinkedAttribute *la;
350 (*la_list) = talloc_realloc(mem_ctx, *la_list, struct drsuapi_DsReplicaLinkedAttribute, (*la_count)+1);
351 W_ERROR_HAVE_NO_MEMORY(*la_list);
353 la = &(*la_list)[*la_count];
355 la->identifier = get_object_identifier(*la_list, msg);
356 W_ERROR_HAVE_NO_MEMORY(la->identifier);
358 active = (dsdb_dn_rmd_flags(dsdb_dn->dn) & DSDB_RMD_FLAG_DELETED) == 0;
360 la->attid = sa->attributeID_id;
361 la->flags = active?DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE:0;
363 status = dsdb_get_extended_dn_nttime(dsdb_dn->dn, &la->originating_add_time, "RMD_ADDTIME");
364 if (!NT_STATUS_IS_OK(status)) {
365 return ntstatus_to_werror(status);
367 status = dsdb_get_extended_dn_uint32(dsdb_dn->dn, &la->meta_data.version, "RMD_VERSION");
368 if (!NT_STATUS_IS_OK(status)) {
369 return ntstatus_to_werror(status);
371 status = dsdb_get_extended_dn_nttime(dsdb_dn->dn, &la->meta_data.originating_change_time, "RMD_CHANGETIME");
372 if (!NT_STATUS_IS_OK(status)) {
373 return ntstatus_to_werror(status);
375 status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &la->meta_data.originating_invocation_id, "RMD_INVOCID");
376 if (!NT_STATUS_IS_OK(status)) {
377 return ntstatus_to_werror(status);
379 status = dsdb_get_extended_dn_uint64(dsdb_dn->dn, &la->meta_data.originating_usn, "RMD_ORIGINATING_USN");
380 if (!NT_STATUS_IS_OK(status)) {
381 return ntstatus_to_werror(status);
384 werr = dsdb_dn_la_to_blob(sam_ctx, sa, schema, *la_list, dsdb_dn, &la->value.blob);
385 W_ERROR_NOT_OK_RETURN(werr);
393 add linked attributes from an object to the list of linked
394 attributes in a getncchanges request
396 static WERROR get_nc_changes_add_links(struct ldb_context *sam_ctx,
398 struct ldb_dn *ncRoot_dn,
399 struct dsdb_schema *schema,
400 uint64_t highest_usn,
401 uint32_t replica_flags,
402 struct ldb_message *msg,
403 struct drsuapi_DsReplicaLinkedAttribute **la_list,
405 struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector)
408 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
409 uint64_t uSNChanged = ldb_msg_find_attr_as_int(msg, "uSNChanged", -1);
411 for (i=0; i<msg->num_elements; i++) {
412 struct ldb_message_element *el = &msg->elements[i];
413 const struct dsdb_attribute *sa;
416 sa = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
418 if (!sa || sa->linkID == 0 || (sa->linkID & 1)) {
419 /* we only want forward links */
423 if (el->num_values && !dsdb_dn_is_upgraded_link_val(&el->values[0])) {
424 /* its an old style link, it will have been
425 * sent in the main replication data */
429 for (j=0; j<el->num_values; j++) {
430 struct dsdb_dn *dsdb_dn;
435 dsdb_dn = dsdb_dn_parse(tmp_ctx, sam_ctx, &el->values[j], sa->syntax->ldap_oid);
436 if (dsdb_dn == NULL) {
437 DEBUG(1,(__location__ ": Failed to parse DN for %s in %s\n",
438 el->name, ldb_dn_get_linearized(msg->dn)));
439 talloc_free(tmp_ctx);
440 return WERR_DS_DRA_INTERNAL_ERROR;
443 status = dsdb_get_extended_dn_uint64(dsdb_dn->dn, &local_usn, "RMD_LOCAL_USN");
444 if (!NT_STATUS_IS_OK(status)) {
445 /* this can happen for attributes
446 given to us with old style meta
451 if (local_usn > uSNChanged) {
452 DEBUG(1,(__location__ ": uSNChanged less than RMD_LOCAL_USN for %s on %s\n",
453 el->name, ldb_dn_get_linearized(msg->dn)));
454 talloc_free(tmp_ctx);
455 return WERR_DS_DRA_INTERNAL_ERROR;
458 if (local_usn < highest_usn) {
462 werr = get_nc_changes_add_la(mem_ctx, sam_ctx, schema, sa, msg,
463 dsdb_dn, la_list, la_count);
464 if (!W_ERROR_IS_OK(werr)) {
465 talloc_free(tmp_ctx);
471 talloc_free(tmp_ctx);
476 fill in the cursors return based on the replUpToDateVector for the ncRoot_dn
478 static WERROR get_nc_changes_udv(struct ldb_context *sam_ctx,
479 struct ldb_dn *ncRoot_dn,
480 struct drsuapi_DsReplicaCursor2CtrEx *udv)
488 ret = dsdb_load_udv_v2(sam_ctx, ncRoot_dn, udv, &udv->cursors, &udv->count);
489 if (ret != LDB_SUCCESS) {
490 DEBUG(0,(__location__ ": Failed to load UDV for %s - %s\n",
491 ldb_dn_get_linearized(ncRoot_dn), ldb_errstring(sam_ctx)));
492 return WERR_DS_DRA_INTERNAL_ERROR;
499 /* comparison function for linked attributes - see CompareLinks() in
500 * MS-DRSR section 4.1.10.5.17 */
501 static int linked_attribute_compare(const struct drsuapi_DsReplicaLinkedAttribute *la1,
502 const struct drsuapi_DsReplicaLinkedAttribute *la2,
503 struct ldb_context *sam_ctx)
508 const struct dsdb_schema *schema;
509 const struct dsdb_attribute *schema_attrib;
510 struct dsdb_dn *dn1, *dn2;
511 struct GUID guid1, guid2;
514 c = GUID_compare(&la1->identifier->guid,
515 &la2->identifier->guid);
516 if (c != 0) return c;
518 if (la1->attid != la2->attid) {
519 return la1->attid < la2->attid? -1:1;
522 if ((la1->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE) !=
523 (la2->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)) {
524 return (la1->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)? 1:-1;
527 /* we need to get the target GUIDs to compare */
528 tmp_ctx = talloc_new(sam_ctx);
530 schema = dsdb_get_schema(sam_ctx, tmp_ctx);
531 schema_attrib = dsdb_attribute_by_attributeID_id(schema, la1->attid);
533 werr = dsdb_dn_la_from_blob(sam_ctx, schema_attrib, schema, tmp_ctx, la1->value.blob, &dn1);
534 if (!W_ERROR_IS_OK(werr)) {
535 DEBUG(0,(__location__ ": Bad la1 blob in sort\n"));
536 talloc_free(tmp_ctx);
540 werr = dsdb_dn_la_from_blob(sam_ctx, schema_attrib, schema, tmp_ctx, la2->value.blob, &dn2);
541 if (!W_ERROR_IS_OK(werr)) {
542 DEBUG(0,(__location__ ": Bad la2 blob in sort\n"));
543 talloc_free(tmp_ctx);
547 status = dsdb_get_extended_dn_guid(dn1->dn, &guid1, "GUID");
548 if (!NT_STATUS_IS_OK(status)) {
549 DEBUG(0,(__location__ ": Bad la1 guid in sort\n"));
550 talloc_free(tmp_ctx);
553 status = dsdb_get_extended_dn_guid(dn2->dn, &guid2, "GUID");
554 if (!NT_STATUS_IS_OK(status)) {
555 DEBUG(0,(__location__ ": Bad la2 guid in sort\n"));
556 talloc_free(tmp_ctx);
560 talloc_free(tmp_ctx);
562 return GUID_compare(&guid1, &guid2);
567 sort the objects we send by tree order
569 static int site_res_cmp_parent_order(struct ldb_message **m1, struct ldb_message **m2)
571 return ldb_dn_compare((*m2)->dn, (*m1)->dn);
575 sort the objects we send first by uSNChanged
577 static int site_res_cmp_usn_order(struct ldb_message **m1, struct ldb_message **m2)
579 unsigned usnchanged1, usnchanged2;
581 cn1 = ldb_dn_get_comp_num((*m1)->dn);
582 cn2 = ldb_dn_get_comp_num((*m2)->dn);
584 return cn1 > cn2 ? 1 : -1;
586 usnchanged1 = ldb_msg_find_attr_as_uint(*m1, "uSNChanged", 0);
587 usnchanged2 = ldb_msg_find_attr_as_uint(*m2, "uSNChanged", 0);
588 if (usnchanged1 == usnchanged2) {
591 return usnchanged1 > usnchanged2 ? 1 : -1;
596 handle a DRSUAPI_EXOP_FSMO_RID_ALLOC call
598 static WERROR getncchanges_rid_alloc(struct drsuapi_bind_state *b_state,
600 struct drsuapi_DsGetNCChangesRequest10 *req10,
601 struct drsuapi_DsGetNCChangesCtr6 *ctr6)
603 struct ldb_dn *rid_manager_dn, *fsmo_role_dn, *req_dn;
605 struct ldb_context *ldb = b_state->sam_ctx;
606 struct ldb_result *ext_res;
607 struct ldb_dn *base_dn;
608 struct dsdb_fsmo_extended_op *exop;
612 - verify that the DN being asked for is the RID Manager DN
613 - verify that we are the RID Manager
616 /* work out who is the RID Manager */
617 ret = samdb_rid_manager_dn(ldb, mem_ctx, &rid_manager_dn);
618 if (ret != LDB_SUCCESS) {
619 DEBUG(0, (__location__ ": Failed to find RID Manager object - %s\n", ldb_errstring(ldb)));
620 return WERR_DS_DRA_INTERNAL_ERROR;
623 req_dn = drs_ObjectIdentifier_to_dn(mem_ctx, ldb, req10->naming_context);
625 !ldb_dn_validate(req_dn) ||
626 ldb_dn_compare(req_dn, rid_manager_dn) != 0) {
627 /* that isn't the RID Manager DN */
628 DEBUG(0,(__location__ ": RID Alloc request for wrong DN %s\n",
629 drs_ObjectIdentifier_to_string(mem_ctx, req10->naming_context)));
630 ctr6->extended_ret = DRSUAPI_EXOP_ERR_MISMATCH;
634 /* find the DN of the RID Manager */
635 ret = samdb_reference_dn(ldb, mem_ctx, rid_manager_dn, "fSMORoleOwner", &fsmo_role_dn);
636 if (ret != LDB_SUCCESS) {
637 DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in RID Manager object - %s\n",
638 ldb_errstring(ldb)));
639 ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
640 return WERR_DS_DRA_INTERNAL_ERROR;
643 if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), fsmo_role_dn) != 0) {
644 /* we're not the RID Manager - go away */
645 DEBUG(0,(__location__ ": RID Alloc request when not RID Manager\n"));
646 ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
650 exop = talloc(mem_ctx, struct dsdb_fsmo_extended_op);
651 W_ERROR_HAVE_NO_MEMORY(exop);
653 exop->fsmo_info = req10->fsmo_info;
654 exop->destination_dsa_guid = req10->destination_dsa_guid;
656 ret = ldb_transaction_start(ldb);
657 if (ret != LDB_SUCCESS) {
658 DEBUG(0,(__location__ ": Failed transaction start - %s\n",
659 ldb_errstring(ldb)));
660 return WERR_DS_DRA_INTERNAL_ERROR;
664 * FIXME (kim): this is a temp hack to return just few object,
665 * but not the whole domain NC.
666 * We should remove this hack and implement a 'scope'
667 * building function to return just the set of object
668 * documented for DRSUAPI_EXOP_FSMO_RID_ALLOC extended_op
670 ldb_sequence_number(ldb, LDB_SEQ_HIGHEST_SEQ, &req10->highwatermark.highest_usn);
672 ret = ldb_extended(ldb, DSDB_EXTENDED_ALLOCATE_RID_POOL, exop, &ext_res);
673 if (ret != LDB_SUCCESS) {
674 DEBUG(0,(__location__ ": Failed extended allocation RID pool operation - %s\n",
675 ldb_errstring(ldb)));
676 ldb_transaction_cancel(ldb);
677 return WERR_DS_DRA_INTERNAL_ERROR;
680 ret = ldb_transaction_commit(ldb);
681 if (ret != LDB_SUCCESS) {
682 DEBUG(0,(__location__ ": Failed transaction commit - %s\n",
683 ldb_errstring(ldb)));
684 return WERR_DS_DRA_INTERNAL_ERROR;
687 talloc_free(ext_res);
689 base_dn = ldb_get_default_basedn(ldb);
691 DEBUG(2,("Allocated RID pool for server %s\n",
692 GUID_string(mem_ctx, &req10->destination_dsa_guid)));
694 ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
700 return an array of SIDs from a ldb_message given an attribute name
701 assumes the SIDs are in extended DN format
703 static WERROR samdb_result_sid_array_dn(struct ldb_context *sam_ctx,
704 struct ldb_message *msg,
707 const struct dom_sid ***sids)
709 struct ldb_message_element *el;
712 el = ldb_msg_find_element(msg, attr);
718 (*sids) = talloc_array(mem_ctx, const struct dom_sid *, el->num_values + 1);
719 W_ERROR_HAVE_NO_MEMORY(*sids);
721 for (i=0; i<el->num_values; i++) {
722 struct ldb_dn *dn = ldb_dn_from_ldb_val(mem_ctx, sam_ctx, &el->values[i]);
726 sid = talloc(*sids, struct dom_sid);
727 W_ERROR_HAVE_NO_MEMORY(sid);
728 status = dsdb_get_extended_dn_sid(dn, sid, "SID");
729 if (!NT_STATUS_IS_OK(status)) {
730 return WERR_INTERNAL_DB_CORRUPTION;
741 return an array of SIDs from a ldb_message given an attribute name
742 assumes the SIDs are in NDR form
744 static WERROR samdb_result_sid_array_ndr(struct ldb_context *sam_ctx,
745 struct ldb_message *msg,
748 const struct dom_sid ***sids)
750 struct ldb_message_element *el;
753 el = ldb_msg_find_element(msg, attr);
759 (*sids) = talloc_array(mem_ctx, const struct dom_sid *, el->num_values + 1);
760 W_ERROR_HAVE_NO_MEMORY(*sids);
762 for (i=0; i<el->num_values; i++) {
763 enum ndr_err_code ndr_err;
766 sid = talloc(*sids, struct dom_sid);
767 W_ERROR_HAVE_NO_MEMORY(sid);
769 ndr_err = ndr_pull_struct_blob(&el->values[i], sid, sid,
770 (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
771 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
772 return WERR_INTERNAL_DB_CORRUPTION;
782 see if any SIDs in list1 are in list2
784 static bool sid_list_match(const struct dom_sid **list1, const struct dom_sid **list2)
787 /* do we ever have enough SIDs here to worry about O(n^2) ? */
788 for (i=0; list1[i]; i++) {
789 for (j=0; list2[j]; j++) {
790 if (dom_sid_equal(list1[i], list2[j])) {
799 handle a DRSUAPI_EXOP_REPL_SECRET call
801 static WERROR getncchanges_repl_secret(struct drsuapi_bind_state *b_state,
803 struct drsuapi_DsGetNCChangesRequest10 *req10,
804 struct dom_sid *user_sid,
805 struct drsuapi_DsGetNCChangesCtr6 *ctr6)
807 struct drsuapi_DsReplicaObjectIdentifier *ncRoot = req10->naming_context;
808 struct ldb_dn *obj_dn, *rodc_dn, *krbtgt_link_dn;
810 const char *rodc_attrs[] = { "msDS-KrbTgtLink", "msDS-NeverRevealGroup", "msDS-RevealOnDemandGroup", NULL };
811 const char *obj_attrs[] = { "tokenGroups", "objectSid", "UserAccountControl", "msDS-KrbTgtLinkBL", NULL };
812 struct ldb_result *rodc_res, *obj_res;
813 const struct dom_sid **never_reveal_sids, **reveal_sids, **token_sids;
816 DEBUG(3,(__location__ ": DRSUAPI_EXOP_REPL_SECRET extended op on %s\n",
817 drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
820 * we need to work out if we will allow this RODC to
821 * replicate the secrets for this object
823 * see 4.1.10.5.14 GetRevealSecretsPolicyForUser for details
827 if (b_state->sam_ctx_system == NULL) {
828 /* this operation needs system level access */
829 ctr6->extended_ret = DRSUAPI_EXOP_ERR_ACCESS_DENIED;
830 return WERR_DS_DRA_SOURCE_DISABLED;
833 obj_dn = drs_ObjectIdentifier_to_dn(mem_ctx, b_state->sam_ctx_system, ncRoot);
834 if (!ldb_dn_validate(obj_dn)) goto failed;
836 rodc_dn = ldb_dn_new_fmt(mem_ctx, b_state->sam_ctx_system, "<SID=%s>",
837 dom_sid_string(mem_ctx, user_sid));
838 if (!ldb_dn_validate(rodc_dn)) goto failed;
840 /* do the two searches we need */
841 ret = dsdb_search_dn(b_state->sam_ctx_system, mem_ctx, &rodc_res, rodc_dn, rodc_attrs,
842 DSDB_SEARCH_SHOW_EXTENDED_DN);
843 if (ret != LDB_SUCCESS || rodc_res->count != 1) goto failed;
845 ret = dsdb_search_dn(b_state->sam_ctx_system, mem_ctx, &obj_res, obj_dn, obj_attrs, 0);
846 if (ret != LDB_SUCCESS || obj_res->count != 1) goto failed;
848 /* if the object SID is equal to the user_sid, allow */
849 if (dom_sid_equal(user_sid,
850 samdb_result_dom_sid(mem_ctx, obj_res->msgs[0], "objectSid"))) {
854 /* an RODC is allowed to get its own krbtgt account secrets */
855 krbtgt_link_dn = samdb_result_dn(b_state->sam_ctx_system, mem_ctx,
856 rodc_res->msgs[0], "msDS-KrbTgtLink", NULL);
857 if (krbtgt_link_dn != NULL &&
858 ldb_dn_compare(obj_dn, krbtgt_link_dn) == 0) {
862 /* but it isn't allowed to get anyone elses krbtgt secrets */
863 if (samdb_result_dn(b_state->sam_ctx_system, mem_ctx,
864 obj_res->msgs[0], "msDS-KrbTgtLinkBL", NULL)) {
868 if (ldb_msg_find_attr_as_uint(obj_res->msgs[0],
869 "userAccountControl", 0) &
870 UF_INTERDOMAIN_TRUST_ACCOUNT) {
874 werr = samdb_result_sid_array_dn(b_state->sam_ctx_system, rodc_res->msgs[0],
875 mem_ctx, "msDS-NeverRevealGroup", &never_reveal_sids);
876 if (!W_ERROR_IS_OK(werr)) {
880 werr = samdb_result_sid_array_dn(b_state->sam_ctx_system, rodc_res->msgs[0],
881 mem_ctx, "msDS-RevealOnDemandGroup", &reveal_sids);
882 if (!W_ERROR_IS_OK(werr)) {
886 werr = samdb_result_sid_array_ndr(b_state->sam_ctx_system, obj_res->msgs[0],
887 mem_ctx, "tokenGroups", &token_sids);
888 if (!W_ERROR_IS_OK(werr) || token_sids==NULL) {
892 if (never_reveal_sids &&
893 sid_list_match(token_sids, never_reveal_sids)) {
898 sid_list_match(token_sids, reveal_sids)) {
904 DEBUG(2,(__location__ ": Denied RODC secret replication for %s by RODC %s\n",
905 ldb_dn_get_linearized(obj_dn), ldb_dn_get_linearized(rodc_res->msgs[0]->dn)));
906 ctr6->extended_ret = DRSUAPI_EXOP_ERR_NONE;
907 return WERR_DS_DRA_ACCESS_DENIED;
910 DEBUG(2,(__location__ ": Allowed RODC secret replication for %s by RODC %s\n",
911 ldb_dn_get_linearized(obj_dn), ldb_dn_get_linearized(rodc_res->msgs[0]->dn)));
912 ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
913 req10->highwatermark.highest_usn = 0;
917 DEBUG(2,(__location__ ": Failed RODC secret replication for %s by RODC %s\n",
918 ldb_dn_get_linearized(obj_dn), dom_sid_string(mem_ctx, user_sid)));
919 ctr6->extended_ret = DRSUAPI_EXOP_ERR_NONE;
920 return WERR_DS_DRA_BAD_DN;
925 handle a DRSUAPI_EXOP_REPL_OBJ call
927 static WERROR getncchanges_repl_obj(struct drsuapi_bind_state *b_state,
929 struct drsuapi_DsGetNCChangesRequest10 *req10,
930 struct dom_sid *user_sid,
931 struct drsuapi_DsGetNCChangesCtr6 *ctr6)
933 struct drsuapi_DsReplicaObjectIdentifier *ncRoot = req10->naming_context;
935 DEBUG(3,(__location__ ": DRSUAPI_EXOP_REPL_OBJ extended op on %s\n",
936 drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
938 ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
939 req10->highwatermark.highest_usn = 0;
945 handle DRSUAPI_EXOP_FSMO_REQ_ROLE,
946 DRSUAPI_EXOP_FSMO_RID_REQ_ROLE,
947 and DRSUAPI_EXOP_FSMO_REQ_PDC calls
949 static WERROR getncchanges_change_master(struct drsuapi_bind_state *b_state,
951 struct drsuapi_DsGetNCChangesRequest10 *req10,
952 struct drsuapi_DsGetNCChangesCtr6 *ctr6)
954 struct ldb_dn *fsmo_role_dn, *req_dn, *ntds_dn;
957 struct ldb_context *ldb = b_state->sam_ctx;
958 struct ldb_message *msg;
962 - verify that the client dn exists
963 - verify that we are the current master
966 req_dn = drs_ObjectIdentifier_to_dn(mem_ctx, ldb, req10->naming_context);
968 !ldb_dn_validate(req_dn)) {
969 /* that is not a valid dn */
970 DEBUG(0,(__location__ ": FSMO role transfer request for invalid DN %s\n",
971 drs_ObjectIdentifier_to_string(mem_ctx, req10->naming_context)));
972 ctr6->extended_ret = DRSUAPI_EXOP_ERR_MISMATCH;
976 /* retrieve the current role owner */
977 ret = samdb_reference_dn(ldb, mem_ctx, req_dn, "fSMORoleOwner", &fsmo_role_dn);
978 if (ret != LDB_SUCCESS) {
979 DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in context - %s\n",
980 ldb_errstring(ldb)));
981 ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
982 return WERR_DS_DRA_INTERNAL_ERROR;
985 if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), fsmo_role_dn) != 0) {
986 /* we're not the current owner - go away */
987 DEBUG(0,(__location__ ": FSMO transfer request when not owner\n"));
988 ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
992 /* change the current master */
993 msg = ldb_msg_new(ldb);
994 W_ERROR_HAVE_NO_MEMORY(msg);
995 msg->dn = drs_ObjectIdentifier_to_dn(msg, ldb, req10->naming_context);
996 W_ERROR_HAVE_NO_MEMORY(msg->dn);
998 ret = dsdb_find_dn_by_guid(ldb, msg, &req10->destination_dsa_guid, &ntds_dn);
999 if (ret != LDB_SUCCESS) {
1000 DEBUG(0, (__location__ ": Unable to find NTDS object for guid %s - %s\n",
1001 GUID_string(mem_ctx, &req10->destination_dsa_guid), ldb_errstring(ldb)));
1003 return WERR_DS_DRA_INTERNAL_ERROR;
1006 ret = ldb_msg_add_string(msg, "fSMORoleOwner", ldb_dn_get_linearized(ntds_dn));
1009 return WERR_DS_DRA_INTERNAL_ERROR;
1012 for (i=0;i<msg->num_elements;i++) {
1013 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
1016 ret = ldb_transaction_start(ldb);
1017 if (ret != LDB_SUCCESS) {
1018 DEBUG(0,(__location__ ": Failed transaction start - %s\n",
1019 ldb_errstring(ldb)));
1020 return WERR_DS_DRA_INTERNAL_ERROR;
1023 ret = ldb_modify(ldb, msg);
1024 if (ret != LDB_SUCCESS) {
1025 DEBUG(0,(__location__ ": Failed to change current owner - %s\n",
1026 ldb_errstring(ldb)));
1027 ldb_transaction_cancel(ldb);
1028 return WERR_DS_DRA_INTERNAL_ERROR;
1031 ret = ldb_transaction_commit(ldb);
1032 if (ret != LDB_SUCCESS) {
1033 DEBUG(0,(__location__ ": Failed transaction commit - %s\n",
1034 ldb_errstring(ldb)));
1035 return WERR_DS_DRA_INTERNAL_ERROR;
1038 ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
1043 /* state of a partially completed getncchanges call */
1044 struct drsuapi_getncchanges_state {
1045 struct ldb_result *site_res;
1047 struct ldb_dn *ncRoot_dn;
1050 uint64_t highest_usn;
1051 struct ldb_dn *last_dn;
1052 struct drsuapi_DsReplicaLinkedAttribute *la_list;
1056 struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector;
1060 see if this getncchanges request includes a request to reveal secret information
1062 static WERROR dcesrv_drsuapi_is_reveal_secrets_request(struct drsuapi_bind_state *b_state,
1063 struct drsuapi_DsGetNCChangesRequest10 *req10,
1064 bool *is_secret_request)
1066 enum drsuapi_DsExtendedOperation exop;
1068 struct dsdb_schema *schema;
1070 *is_secret_request = true;
1072 exop = req10->extended_op;
1075 case DRSUAPI_EXOP_FSMO_REQ_ROLE:
1076 case DRSUAPI_EXOP_FSMO_RID_ALLOC:
1077 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE:
1078 case DRSUAPI_EXOP_FSMO_REQ_PDC:
1079 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE:
1080 /* FSMO exops can reveal secrets */
1081 *is_secret_request = true;
1083 case DRSUAPI_EXOP_REPL_SECRET:
1084 case DRSUAPI_EXOP_REPL_OBJ:
1085 case DRSUAPI_EXOP_NONE:
1089 if (req10->replica_flags & DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING) {
1090 *is_secret_request = false;
1094 if (exop == DRSUAPI_EXOP_REPL_SECRET ||
1095 req10->partial_attribute_set == NULL) {
1096 /* they want secrets */
1097 *is_secret_request = true;
1101 schema = dsdb_get_schema(b_state->sam_ctx, NULL);
1103 /* check the attributes they asked for */
1104 for (i=0; i<req10->partial_attribute_set->num_attids; i++) {
1105 const struct dsdb_attribute *sa;
1106 sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set->attids[i]);
1108 return WERR_DS_DRA_SCHEMA_MISMATCH;
1110 if (!dsdb_attr_in_rodc_fas(sa)) {
1111 *is_secret_request = true;
1116 /* check the attributes they asked for */
1117 for (i=0; i<req10->partial_attribute_set_ex->num_attids; i++) {
1118 const struct dsdb_attribute *sa;
1119 sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set_ex->attids[i]);
1121 return WERR_DS_DRA_SCHEMA_MISMATCH;
1123 if (!dsdb_attr_in_rodc_fas(sa)) {
1124 *is_secret_request = true;
1129 *is_secret_request = false;
1135 map from req8 to req10
1137 static struct drsuapi_DsGetNCChangesRequest10 *
1138 getncchanges_map_req8(TALLOC_CTX *mem_ctx,
1139 struct drsuapi_DsGetNCChangesRequest8 *req8)
1141 struct drsuapi_DsGetNCChangesRequest10 *req10 = talloc_zero(mem_ctx,
1142 struct drsuapi_DsGetNCChangesRequest10);
1143 if (req10 == NULL) {
1147 req10->destination_dsa_guid = req8->destination_dsa_guid;
1148 req10->source_dsa_invocation_id = req8->source_dsa_invocation_id;
1149 req10->naming_context = req8->naming_context;
1150 req10->highwatermark = req8->highwatermark;
1151 req10->uptodateness_vector = req8->uptodateness_vector;
1152 req10->replica_flags = req8->replica_flags;
1153 req10->max_object_count = req8->max_object_count;
1154 req10->max_ndr_size = req8->max_ndr_size;
1155 req10->extended_op = req8->extended_op;
1156 req10->fsmo_info = req8->fsmo_info;
1157 req10->partial_attribute_set = req8->partial_attribute_set;
1158 req10->partial_attribute_set_ex = req8->partial_attribute_set_ex;
1159 req10->mapping_ctr = req8->mapping_ctr;
1166 drsuapi_DsGetNCChanges
1168 see MS-DRSR 4.1.10.5.2 for basic logic of this function
1170 WERROR dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
1171 struct drsuapi_DsGetNCChanges *r)
1173 struct drsuapi_DsReplicaObjectIdentifier *ncRoot;
1176 struct dsdb_schema *schema;
1177 struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
1178 struct drsuapi_DsReplicaObjectListItemEx **currentObject;
1180 DATA_BLOB session_key;
1181 const char *attrs[] = { "*", "distinguishedName",
1182 "nTSecurityDescriptor",
1184 "replPropertyMetaData",
1189 "supplementalCredentials",
1192 struct dcesrv_handle *h;
1193 struct drsuapi_bind_state *b_state;
1194 struct drsuapi_getncchanges_state *getnc_state;
1195 struct drsuapi_DsGetNCChangesRequest10 *req10;
1197 uint32_t max_objects;
1199 uint32_t link_count = 0;
1200 uint32_t link_total = 0;
1201 uint32_t link_given = 0;
1202 struct ldb_dn *search_dn = NULL;
1203 bool am_rodc, null_scope=false;
1204 enum security_user_level security_level;
1205 struct ldb_context *sam_ctx;
1206 struct dom_sid *user_sid;
1207 bool is_secret_request;
1209 DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
1212 sam_ctx = b_state->sam_ctx_system?b_state->sam_ctx_system:b_state->sam_ctx;
1214 *r->out.level_out = 6;
1215 /* TODO: linked attributes*/
1216 r->out.ctr->ctr6.linked_attributes_count = 0;
1217 r->out.ctr->ctr6.linked_attributes = NULL;
1219 r->out.ctr->ctr6.object_count = 0;
1220 r->out.ctr->ctr6.nc_object_count = 0;
1221 r->out.ctr->ctr6.more_data = false;
1222 r->out.ctr->ctr6.uptodateness_vector = NULL;
1224 /* a RODC doesn't allow for any replication */
1225 ret = samdb_rodc(sam_ctx, &am_rodc);
1226 if (ret == LDB_SUCCESS && am_rodc) {
1227 DEBUG(0,(__location__ ": DsGetNCChanges attempt on RODC\n"));
1228 return WERR_DS_DRA_SOURCE_DISABLED;
1231 /* Check request revision.
1233 switch (r->in.level) {
1235 req10 = getncchanges_map_req8(mem_ctx, &r->in.req->req8);
1236 if (req10 == NULL) {
1241 req10 = &r->in.req->req10;
1244 DEBUG(0,(__location__ ": Request for DsGetNCChanges with unsupported level %u\n",
1246 return WERR_REVISION_MISMATCH;
1250 /* Perform access checks. */
1251 /* TODO: we need to support a sync on a specific non-root
1252 * DN. We'll need to find the real partition root here */
1253 ncRoot = req10->naming_context;
1254 if (ncRoot == NULL) {
1255 DEBUG(0,(__location__ ": Request for DsGetNCChanges with no NC\n"));
1256 return WERR_DS_DRA_INVALID_PARAMETER;
1259 if (samdb_ntds_options(sam_ctx, &options) != LDB_SUCCESS) {
1260 return WERR_DS_DRA_INTERNAL_ERROR;
1263 if ((options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) &&
1264 !(req10->replica_flags & DRSUAPI_DRS_SYNC_FORCED)) {
1265 return WERR_DS_DRA_SOURCE_DISABLED;
1268 user_sid = &dce_call->conn->auth_state.session_info->security_token->sids[PRIMARY_USER_SID_INDEX];
1270 werr = drs_security_access_check_nc_root(b_state->sam_ctx,
1272 dce_call->conn->auth_state.session_info->security_token,
1273 req10->naming_context,
1274 GUID_DRS_GET_CHANGES);
1275 if (!W_ERROR_IS_OK(werr)) {
1279 werr = dcesrv_drsuapi_is_reveal_secrets_request(b_state, req10, &is_secret_request);
1280 if (!W_ERROR_IS_OK(werr)) {
1283 if (is_secret_request && req10->extended_op != DRSUAPI_EXOP_REPL_SECRET) {
1284 werr = drs_security_access_check_nc_root(b_state->sam_ctx,
1286 dce_call->conn->auth_state.session_info->security_token,
1287 req10->naming_context,
1288 GUID_DRS_GET_ALL_CHANGES);
1289 if (!W_ERROR_IS_OK(werr)) {
1294 /* for non-administrator replications, check that they have
1295 given the correct source_dsa_invocation_id */
1296 security_level = security_session_user_level(dce_call->conn->auth_state.session_info,
1297 samdb_domain_sid(sam_ctx));
1298 if (security_level == SECURITY_RO_DOMAIN_CONTROLLER) {
1299 if (req10->replica_flags & DRSUAPI_DRS_WRIT_REP) {
1300 /* we rely on this flag being unset for RODC requests */
1301 req10->replica_flags &= ~DRSUAPI_DRS_WRIT_REP;
1305 if (req10->replica_flags & DRSUAPI_DRS_FULL_SYNC_PACKET) {
1306 /* Ignore the _in_ uptpdateness vector*/
1307 req10->uptodateness_vector = NULL;
1310 getnc_state = b_state->getncchanges_state;
1312 /* see if a previous replication has been abandoned */
1314 struct ldb_dn *new_dn = drs_ObjectIdentifier_to_dn(getnc_state, sam_ctx, ncRoot);
1315 if (ldb_dn_compare(new_dn, getnc_state->ncRoot_dn) != 0) {
1316 DEBUG(0,(__location__ ": DsGetNCChanges 2nd replication on different DN %s %s (last_dn %s)\n",
1317 ldb_dn_get_linearized(new_dn),
1318 ldb_dn_get_linearized(getnc_state->ncRoot_dn),
1319 ldb_dn_get_linearized(getnc_state->last_dn)));
1320 talloc_free(getnc_state);
1325 if (getnc_state == NULL) {
1326 getnc_state = talloc_zero(b_state, struct drsuapi_getncchanges_state);
1327 if (getnc_state == NULL) {
1330 b_state->getncchanges_state = getnc_state;
1331 getnc_state->ncRoot_dn = drs_ObjectIdentifier_to_dn(getnc_state, sam_ctx, ncRoot);
1333 /* find out if we are to replicate Schema NC */
1334 ret = ldb_dn_compare(getnc_state->ncRoot_dn,
1335 ldb_get_schema_basedn(b_state->sam_ctx));
1336 getnc_state->is_schema_nc = (0 == ret);
1339 * This is the first replication cycle and it is
1340 * a good place to handle extended operations
1342 * FIXME: we don't fully support extended operations yet
1344 switch (req10->extended_op) {
1345 case DRSUAPI_EXOP_NONE:
1347 case DRSUAPI_EXOP_FSMO_RID_ALLOC:
1348 werr = getncchanges_rid_alloc(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
1349 W_ERROR_NOT_OK_RETURN(werr);
1350 search_dn = ldb_get_default_basedn(sam_ctx);
1352 case DRSUAPI_EXOP_REPL_SECRET:
1353 werr = getncchanges_repl_secret(b_state, mem_ctx, req10, user_sid, &r->out.ctr->ctr6);
1354 r->out.result = werr;
1355 W_ERROR_NOT_OK_RETURN(werr);
1357 case DRSUAPI_EXOP_FSMO_REQ_ROLE:
1358 werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
1359 W_ERROR_NOT_OK_RETURN(werr);
1361 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE:
1362 werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
1363 W_ERROR_NOT_OK_RETURN(werr);
1365 case DRSUAPI_EXOP_FSMO_REQ_PDC:
1366 werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
1367 W_ERROR_NOT_OK_RETURN(werr);
1369 case DRSUAPI_EXOP_REPL_OBJ:
1370 werr = getncchanges_repl_obj(b_state, mem_ctx, req10, user_sid, &r->out.ctr->ctr6);
1371 r->out.result = werr;
1372 W_ERROR_NOT_OK_RETURN(werr);
1375 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE:
1377 DEBUG(0,(__location__ ": Request for DsGetNCChanges unsupported extended op 0x%x\n",
1378 (unsigned)req10->extended_op));
1379 return WERR_DS_DRA_NOT_SUPPORTED;
1383 if (!ldb_dn_validate(getnc_state->ncRoot_dn) ||
1384 ldb_dn_is_null(getnc_state->ncRoot_dn)) {
1385 DEBUG(0,(__location__ ": Bad DN '%s'\n",
1386 drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
1387 return WERR_DS_DRA_INVALID_PARAMETER;
1390 /* we need the session key for encrypting password attributes */
1391 status = dcesrv_inherited_session_key(dce_call->conn, &session_key);
1392 if (!NT_STATUS_IS_OK(status)) {
1393 DEBUG(0,(__location__ ": Failed to get session key\n"));
1394 return WERR_DS_DRA_INTERNAL_ERROR;
1398 TODO: MS-DRSR section 4.1.10.1.1
1399 Work out if this is the start of a new cycle */
1401 if (getnc_state->site_res == NULL) {
1402 char* search_filter;
1403 enum ldb_scope scope = LDB_SCOPE_SUBTREE;
1404 const char *extra_filter;
1406 if (req10->extended_op == DRSUAPI_EXOP_REPL_OBJ ||
1407 req10->extended_op == DRSUAPI_EXOP_REPL_SECRET) {
1408 scope = LDB_SCOPE_BASE;
1411 extra_filter = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "object filter");
1413 getnc_state->min_usn = req10->highwatermark.highest_usn;
1415 /* Construct response. */
1416 search_filter = talloc_asprintf(mem_ctx,
1417 "(uSNChanged>=%llu)",
1418 (unsigned long long)(getnc_state->min_usn+1));
1421 search_filter = talloc_asprintf(mem_ctx, "(&%s(%s))", search_filter, extra_filter);
1424 if (req10->replica_flags & DRSUAPI_DRS_CRITICAL_ONLY) {
1425 search_filter = talloc_asprintf(mem_ctx,
1426 "(&%s(isCriticalSystemObject=TRUE))",
1430 if (req10->replica_flags & DRSUAPI_DRS_ASYNC_REP) {
1431 scope = LDB_SCOPE_BASE;
1435 search_dn = getnc_state->ncRoot_dn;
1438 DEBUG(2,(__location__ ": getncchanges on %s using filter %s\n",
1439 ldb_dn_get_linearized(getnc_state->ncRoot_dn), search_filter));
1440 ret = drsuapi_search_with_extended_dn(sam_ctx, getnc_state, &getnc_state->site_res,
1441 search_dn, scope, attrs,
1443 if (ret != LDB_SUCCESS) {
1444 return WERR_DS_DRA_INTERNAL_ERROR;
1447 if (req10->replica_flags & DRSUAPI_DRS_GET_ANC) {
1448 TYPESAFE_QSORT(getnc_state->site_res->msgs,
1449 getnc_state->site_res->count,
1450 site_res_cmp_parent_order);
1452 TYPESAFE_QSORT(getnc_state->site_res->msgs,
1453 getnc_state->site_res->count,
1454 site_res_cmp_usn_order);
1457 getnc_state->uptodateness_vector = talloc_steal(getnc_state, req10->uptodateness_vector);
1458 if (getnc_state->uptodateness_vector) {
1459 /* make sure its sorted */
1460 TYPESAFE_QSORT(getnc_state->uptodateness_vector->cursors,
1461 getnc_state->uptodateness_vector->count,
1462 drsuapi_DsReplicaCursor_compare);
1466 /* Prefix mapping */
1467 schema = dsdb_get_schema(sam_ctx, mem_ctx);
1469 DEBUG(0,("No schema in sam_ctx\n"));
1470 return WERR_DS_DRA_INTERNAL_ERROR;
1473 r->out.ctr->ctr6.naming_context = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
1474 *r->out.ctr->ctr6.naming_context = *ncRoot;
1476 if (dsdb_find_guid_by_dn(sam_ctx, getnc_state->ncRoot_dn,
1477 &r->out.ctr->ctr6.naming_context->guid) != LDB_SUCCESS) {
1478 DEBUG(0,(__location__ ": Failed to find GUID of ncRoot_dn %s\n",
1479 ldb_dn_get_linearized(getnc_state->ncRoot_dn)));
1480 return WERR_DS_DRA_INTERNAL_ERROR;
1483 /* find the SID if there is one */
1484 dsdb_find_sid_by_dn(sam_ctx, getnc_state->ncRoot_dn, &r->out.ctr->ctr6.naming_context->sid);
1486 dsdb_get_oid_mappings_drsuapi(schema, true, mem_ctx, &ctr);
1487 r->out.ctr->ctr6.mapping_ctr = *ctr;
1489 r->out.ctr->ctr6.source_dsa_guid = *(samdb_ntds_objectGUID(sam_ctx));
1490 r->out.ctr->ctr6.source_dsa_invocation_id = *(samdb_ntds_invocation_id(sam_ctx));
1492 r->out.ctr->ctr6.old_highwatermark = req10->highwatermark;
1493 r->out.ctr->ctr6.new_highwatermark = req10->highwatermark;
1495 r->out.ctr->ctr6.first_object = NULL;
1496 currentObject = &r->out.ctr->ctr6.first_object;
1498 /* use this to force single objects at a time, which is useful
1499 * for working out what object is giving problems
1501 max_objects = lpcfg_parm_int(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "max object sync", 1000);
1502 if (req10->max_object_count < max_objects) {
1503 max_objects = req10->max_object_count;
1506 * TODO: work out how the maximum should be calculated
1508 max_links = lpcfg_parm_int(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "max link sync", 1500);
1510 for (i=getnc_state->num_sent;
1511 i<getnc_state->site_res->count &&
1513 (r->out.ctr->ctr6.object_count < max_objects);
1516 struct drsuapi_DsReplicaObjectListItemEx *obj;
1517 struct ldb_message *msg = getnc_state->site_res->msgs[i];
1519 obj = talloc_zero(mem_ctx, struct drsuapi_DsReplicaObjectListItemEx);
1521 werr = get_nc_changes_build_object(obj, msg,
1522 sam_ctx, getnc_state->ncRoot_dn,
1523 getnc_state->is_schema_nc,
1524 schema, &session_key, getnc_state->min_usn,
1525 req10->replica_flags,
1526 req10->partial_attribute_set,
1527 getnc_state->uptodateness_vector,
1528 req10->extended_op);
1529 if (!W_ERROR_IS_OK(werr)) {
1533 werr = get_nc_changes_add_links(sam_ctx, getnc_state,
1534 getnc_state->ncRoot_dn,
1535 schema, getnc_state->min_usn,
1536 req10->replica_flags,
1538 &getnc_state->la_list,
1539 &getnc_state->la_count,
1540 getnc_state->uptodateness_vector);
1541 if (!W_ERROR_IS_OK(werr)) {
1545 uSN = ldb_msg_find_attr_as_int(msg, "uSNChanged", -1);
1546 if (uSN > r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn) {
1547 r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn = uSN;
1549 if (uSN > getnc_state->highest_usn) {
1550 getnc_state->highest_usn = uSN;
1553 if (obj->meta_data_ctr == NULL) {
1554 DEBUG(8,(__location__ ": getncchanges skipping send of object %s\n",
1555 ldb_dn_get_linearized(msg->dn)));
1556 /* no attributes to send */
1561 r->out.ctr->ctr6.object_count++;
1563 *currentObject = obj;
1564 currentObject = &obj->next_object;
1566 talloc_free(getnc_state->last_dn);
1567 getnc_state->last_dn = ldb_dn_copy(getnc_state, msg->dn);
1569 DEBUG(8,(__location__ ": replicating object %s\n", ldb_dn_get_linearized(msg->dn)));
1572 getnc_state->num_sent += r->out.ctr->ctr6.object_count;
1574 r->out.ctr->ctr6.nc_object_count = getnc_state->site_res->count;
1576 /* the client can us to call UpdateRefs on its behalf to
1577 re-establish monitoring of the NC */
1578 if ((req10->replica_flags & (DRSUAPI_DRS_ADD_REF | DRSUAPI_DRS_REF_GCSPN)) &&
1579 !GUID_all_zero(&req10->destination_dsa_guid)) {
1580 struct drsuapi_DsReplicaUpdateRefsRequest1 ureq;
1581 DEBUG(3,("UpdateRefs on getncchanges for %s\n",
1582 GUID_string(mem_ctx, &req10->destination_dsa_guid)));
1583 ureq.naming_context = ncRoot;
1584 ureq.dest_dsa_dns_name = talloc_asprintf(mem_ctx, "%s._msdcs.%s",
1585 GUID_string(mem_ctx, &req10->destination_dsa_guid),
1586 lpcfg_dnsdomain(dce_call->conn->dce_ctx->lp_ctx));
1587 if (!ureq.dest_dsa_dns_name) {
1590 ureq.dest_dsa_guid = req10->destination_dsa_guid;
1591 ureq.options = DRSUAPI_DRS_ADD_REF |
1592 DRSUAPI_DRS_ASYNC_OP |
1593 DRSUAPI_DRS_GETCHG_CHECK;
1595 /* we also need to pass through the
1596 DRSUAPI_DRS_REF_GCSPN bit so that repsTo gets flagged
1597 to send notifies using the GC SPN */
1598 ureq.options |= (req10->replica_flags & DRSUAPI_DRS_REF_GCSPN);
1600 werr = drsuapi_UpdateRefs(b_state, mem_ctx, &ureq);
1601 if (!W_ERROR_IS_OK(werr)) {
1602 DEBUG(0,(__location__ ": Failed UpdateRefs in DsGetNCChanges - %s\n",
1609 * This is just a guess, how to calculate the
1610 * number of linked attributes to send, we need to
1611 * find out how to do this right.
1613 if (r->out.ctr->ctr6.object_count >= max_links) {
1616 max_links -= r->out.ctr->ctr6.object_count;
1619 link_total = getnc_state->la_count;
1621 if (i < getnc_state->site_res->count) {
1622 r->out.ctr->ctr6.more_data = true;
1624 /* sort the whole array the first time */
1625 if (!getnc_state->la_sorted) {
1626 LDB_TYPESAFE_QSORT(getnc_state->la_list, getnc_state->la_count,
1627 sam_ctx, linked_attribute_compare);
1628 getnc_state->la_sorted = true;
1631 link_count = getnc_state->la_count - getnc_state->la_idx;
1632 link_count = MIN(max_links, link_count);
1634 r->out.ctr->ctr6.linked_attributes_count = link_count;
1635 r->out.ctr->ctr6.linked_attributes = getnc_state->la_list + getnc_state->la_idx;
1637 getnc_state->la_idx += link_count;
1638 link_given = getnc_state->la_idx;
1640 if (getnc_state->la_idx < getnc_state->la_count) {
1641 r->out.ctr->ctr6.more_data = true;
1645 if (!r->out.ctr->ctr6.more_data) {
1646 talloc_steal(mem_ctx, getnc_state->la_list);
1648 r->out.ctr->ctr6.uptodateness_vector = talloc(mem_ctx, struct drsuapi_DsReplicaCursor2CtrEx);
1649 r->out.ctr->ctr6.new_highwatermark.highest_usn = r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn;
1651 werr = get_nc_changes_udv(sam_ctx, getnc_state->ncRoot_dn,
1652 r->out.ctr->ctr6.uptodateness_vector);
1653 if (!W_ERROR_IS_OK(werr)) {
1657 talloc_free(getnc_state);
1658 b_state->getncchanges_state = NULL;
1661 if (req10->extended_op != DRSUAPI_EXOP_NONE) {
1662 r->out.ctr->ctr6.uptodateness_vector = NULL;
1663 r->out.ctr->ctr6.nc_object_count = 0;
1664 ZERO_STRUCT(r->out.ctr->ctr6.new_highwatermark);
1665 r->out.ctr->ctr6.extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
1668 DEBUG(r->out.ctr->ctr6.more_data?4:2,
1669 ("DsGetNCChanges with uSNChanged >= %llu flags 0x%08x on %s gave %u objects (done %u/%u) %u links (done %u/%u (as %s))\n",
1670 (unsigned long long)(req10->highwatermark.highest_usn+1),
1671 req10->replica_flags, drs_ObjectIdentifier_to_string(mem_ctx, ncRoot),
1672 r->out.ctr->ctr6.object_count,
1673 i, r->out.ctr->ctr6.more_data?getnc_state->site_res->count:i,
1674 r->out.ctr->ctr6.linked_attributes_count,
1675 link_given, link_total,
1676 dom_sid_string(mem_ctx, user_sid)));
1679 if (!r->out.ctr->ctr6.more_data && req10->extended_op != DRSUAPI_EXOP_NONE) {
1680 NDR_PRINT_FUNCTION_DEBUG(drsuapi_DsGetNCChanges, NDR_BOTH, r);