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 "libcli/security/security.h"
31 #include "libcli/security/session.h"
32 #include "rpc_server/drsuapi/dcesrv_drsuapi.h"
33 #include "rpc_server/dcerpc_server_proto.h"
34 #include "../libcli/drsuapi/drsuapi.h"
35 #include "lib/util/binsearch.h"
36 #include "lib/util/tsort.h"
37 #include "auth/session.h"
38 #include "dsdb/common/util.h"
40 /* state of a partially completed getncchanges call */
41 struct drsuapi_getncchanges_state
{
44 uint32_t num_processed
;
45 struct ldb_dn
*ncRoot_dn
;
49 struct drsuapi_DsReplicaHighWaterMark last_hwm
;
50 struct ldb_dn
*last_dn
;
51 struct drsuapi_DsReplicaHighWaterMark final_hwm
;
52 struct drsuapi_DsReplicaCursor2CtrEx
*final_udv
;
53 struct drsuapi_DsReplicaLinkedAttribute
*la_list
;
59 static int drsuapi_DsReplicaHighWaterMark_cmp(const struct drsuapi_DsReplicaHighWaterMark
*h1
,
60 const struct drsuapi_DsReplicaHighWaterMark
*h2
)
62 if (h1
->highest_usn
< h2
->highest_usn
) {
64 } else if (h1
->highest_usn
> h2
->highest_usn
) {
66 } else if (h1
->tmp_highest_usn
< h2
->tmp_highest_usn
) {
68 } else if (h1
->tmp_highest_usn
> h2
->tmp_highest_usn
) {
70 } else if (h1
->reserved_usn
< h2
->reserved_usn
) {
72 } else if (h1
->reserved_usn
> h2
->reserved_usn
) {
80 build a DsReplicaObjectIdentifier from a ldb msg
82 static struct drsuapi_DsReplicaObjectIdentifier
*get_object_identifier(TALLOC_CTX
*mem_ctx
,
83 struct ldb_message
*msg
)
85 struct drsuapi_DsReplicaObjectIdentifier
*identifier
;
88 identifier
= talloc(mem_ctx
, struct drsuapi_DsReplicaObjectIdentifier
);
89 if (identifier
== NULL
) {
93 identifier
->dn
= ldb_dn_alloc_linearized(identifier
, msg
->dn
);
94 identifier
->guid
= samdb_result_guid(msg
, "objectGUID");
96 sid
= samdb_result_dom_sid(identifier
, msg
, "objectSid");
98 identifier
->sid
= *sid
;
100 ZERO_STRUCT(identifier
->sid
);
105 static int udv_compare(const struct GUID
*guid1
, struct GUID guid2
)
107 return GUID_compare(guid1
, &guid2
);
111 see if we can filter an attribute using the uptodateness_vector
113 static bool udv_filter(const struct drsuapi_DsReplicaCursorCtrEx
*udv
,
114 const struct GUID
*originating_invocation_id
,
115 uint64_t originating_usn
)
117 const struct drsuapi_DsReplicaCursor
*c
;
118 if (udv
== NULL
) return false;
119 BINARY_ARRAY_SEARCH(udv
->cursors
, udv
->count
, source_dsa_invocation_id
,
120 originating_invocation_id
, udv_compare
, c
);
121 if (c
&& originating_usn
<= c
->highest_usn
) {
128 static int attid_cmp(enum drsuapi_DsAttributeId a1
, enum drsuapi_DsAttributeId a2
)
130 if (a1
== a2
) return 0;
131 return ((uint32_t)a1
) > ((uint32_t)a2
) ? 1 : -1;
135 check if an attribute is in a partial_attribute_set
137 static bool check_partial_attribute_set(const struct dsdb_attribute
*sa
,
138 struct drsuapi_DsPartialAttributeSet
*pas
)
140 enum drsuapi_DsAttributeId
*result
;
141 BINARY_ARRAY_SEARCH_V(pas
->attids
, pas
->num_attids
, (enum drsuapi_DsAttributeId
)sa
->attributeID_id
,
143 return result
!= NULL
;
148 drsuapi_DsGetNCChanges for one object
150 static WERROR
get_nc_changes_build_object(struct drsuapi_DsReplicaObjectListItemEx
*obj
,
151 struct ldb_message
*msg
,
152 struct ldb_context
*sam_ctx
,
153 struct ldb_dn
*ncRoot_dn
,
155 struct dsdb_schema
*schema
,
156 DATA_BLOB
*session_key
,
157 uint64_t highest_usn
,
158 uint32_t replica_flags
,
159 struct drsuapi_DsPartialAttributeSet
*partial_attribute_set
,
160 struct drsuapi_DsReplicaCursorCtrEx
*uptodateness_vector
,
161 enum drsuapi_DsExtendedOperation extended_op
,
162 bool force_object_return
)
164 const struct ldb_val
*md_value
;
166 struct replPropertyMetaDataBlob md
;
168 enum ndr_err_code ndr_err
;
171 const struct dsdb_attribute
*rdn_sa
;
172 unsigned int instanceType
;
173 struct dsdb_syntax_ctx syntax_ctx
;
175 /* make dsdb sytanx context for conversions */
176 dsdb_syntax_ctx_init(&syntax_ctx
, sam_ctx
, schema
);
177 syntax_ctx
.is_schema_nc
= is_schema_nc
;
179 instanceType
= ldb_msg_find_attr_as_uint(msg
, "instanceType", 0);
180 if (instanceType
& INSTANCE_TYPE_IS_NC_HEAD
) {
181 obj
->is_nc_prefix
= true;
182 obj
->parent_object_guid
= NULL
;
184 obj
->is_nc_prefix
= false;
185 obj
->parent_object_guid
= talloc(obj
, struct GUID
);
186 if (obj
->parent_object_guid
== NULL
) {
187 return WERR_DS_DRA_INTERNAL_ERROR
;
189 *obj
->parent_object_guid
= samdb_result_guid(msg
, "parentGUID");
190 if (GUID_all_zero(obj
->parent_object_guid
)) {
191 DEBUG(0,(__location__
": missing parentGUID for %s\n",
192 ldb_dn_get_linearized(msg
->dn
)));
193 return WERR_DS_DRA_INTERNAL_ERROR
;
196 obj
->next_object
= NULL
;
198 md_value
= ldb_msg_find_ldb_val(msg
, "replPropertyMetaData");
200 /* nothing to send */
204 if (instanceType
& INSTANCE_TYPE_UNINSTANT
) {
205 /* don't send uninstantiated objects */
209 ndr_err
= ndr_pull_struct_blob(md_value
, obj
, &md
,
210 (ndr_pull_flags_fn_t
)ndr_pull_replPropertyMetaDataBlob
);
211 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
212 return WERR_DS_DRA_INTERNAL_ERROR
;
215 if (md
.version
!= 1) {
216 return WERR_DS_DRA_INTERNAL_ERROR
;
219 rdn
= ldb_dn_get_rdn_name(msg
->dn
);
221 DEBUG(0,(__location__
": No rDN for %s\n", ldb_dn_get_linearized(msg
->dn
)));
222 return WERR_DS_DRA_INTERNAL_ERROR
;
225 rdn_sa
= dsdb_attribute_by_lDAPDisplayName(schema
, rdn
);
226 if (rdn_sa
== NULL
) {
227 DEBUG(0,(__location__
": Can't find dsds_attribute for rDN %s in %s\n",
228 rdn
, ldb_dn_get_linearized(msg
->dn
)));
229 return WERR_DS_DRA_INTERNAL_ERROR
;
232 obj
->meta_data_ctr
= talloc(obj
, struct drsuapi_DsReplicaMetaDataCtr
);
233 attids
= talloc_array(obj
, uint32_t, md
.ctr
.ctr1
.count
);
235 obj
->object
.identifier
= get_object_identifier(obj
, msg
);
236 if (obj
->object
.identifier
== NULL
) {
239 dom_sid_split_rid(NULL
, &obj
->object
.identifier
->sid
, NULL
, &rid
);
241 obj
->meta_data_ctr
->meta_data
= talloc_array(obj
, struct drsuapi_DsReplicaMetaData
, md
.ctr
.ctr1
.count
);
242 for (n
=i
=0; i
<md
.ctr
.ctr1
.count
; i
++) {
243 const struct dsdb_attribute
*sa
;
244 bool force_attribute
= false;
246 /* if the attribute has not changed, and it is not the
247 instanceType then don't include it */
248 if (md
.ctr
.ctr1
.array
[i
].local_usn
< highest_usn
&&
249 extended_op
!= DRSUAPI_EXOP_REPL_SECRET
&&
250 md
.ctr
.ctr1
.array
[i
].attid
!= DRSUAPI_ATTID_instanceType
) continue;
252 /* don't include the rDN */
253 if (md
.ctr
.ctr1
.array
[i
].attid
== rdn_sa
->attributeID_id
) continue;
255 sa
= dsdb_attribute_by_attributeID_id(schema
, md
.ctr
.ctr1
.array
[i
].attid
);
257 DEBUG(0,(__location__
": Failed to find attribute in schema for attrid %u mentioned in replPropertyMetaData of %s\n",
258 (unsigned int)md
.ctr
.ctr1
.array
[i
].attid
,
259 ldb_dn_get_linearized(msg
->dn
)));
260 return WERR_DS_DRA_INTERNAL_ERROR
;
264 struct ldb_message_element
*el
;
265 el
= ldb_msg_find_element(msg
, sa
->lDAPDisplayName
);
266 if (el
&& el
->num_values
&& dsdb_dn_is_upgraded_link_val(&el
->values
[0])) {
267 /* don't send upgraded links inline */
272 if (extended_op
== DRSUAPI_EXOP_REPL_SECRET
&&
273 !dsdb_attr_in_rodc_fas(sa
)) {
274 force_attribute
= true;
275 DEBUG(4,("Forcing attribute %s in %s\n",
276 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
279 /* filter by uptodateness_vector */
280 if (md
.ctr
.ctr1
.array
[i
].attid
!= DRSUAPI_ATTID_instanceType
&&
282 udv_filter(uptodateness_vector
,
283 &md
.ctr
.ctr1
.array
[i
].originating_invocation_id
,
284 md
.ctr
.ctr1
.array
[i
].originating_usn
)) {
288 /* filter by partial_attribute_set */
289 if (partial_attribute_set
&& !check_partial_attribute_set(sa
, partial_attribute_set
)) {
293 obj
->meta_data_ctr
->meta_data
[n
].originating_change_time
= md
.ctr
.ctr1
.array
[i
].originating_change_time
;
294 obj
->meta_data_ctr
->meta_data
[n
].version
= md
.ctr
.ctr1
.array
[i
].version
;
295 obj
->meta_data_ctr
->meta_data
[n
].originating_invocation_id
= md
.ctr
.ctr1
.array
[i
].originating_invocation_id
;
296 obj
->meta_data_ctr
->meta_data
[n
].originating_usn
= md
.ctr
.ctr1
.array
[i
].originating_usn
;
297 attids
[n
] = md
.ctr
.ctr1
.array
[i
].attid
;
301 /* ignore it if its an empty change. Note that renames always
302 * change the 'name' attribute, so they won't be ignored by
305 * the force_object_return check is used to force an empty
306 * object return when we timeout in the getncchanges loop.
307 * This allows us to return an empty object, which keeps the
308 * client happy while preventing timeouts
312 attids
[0] == DRSUAPI_ATTID_instanceType
&&
313 !force_object_return
)) {
314 talloc_free(obj
->meta_data_ctr
);
315 obj
->meta_data_ctr
= NULL
;
319 obj
->meta_data_ctr
->count
= n
;
321 obj
->object
.flags
= DRSUAPI_DS_REPLICA_OBJECT_FROM_MASTER
;
322 obj
->object
.attribute_ctr
.num_attributes
= obj
->meta_data_ctr
->count
;
323 obj
->object
.attribute_ctr
.attributes
= talloc_array(obj
, struct drsuapi_DsReplicaAttribute
,
324 obj
->object
.attribute_ctr
.num_attributes
);
325 if (obj
->object
.attribute_ctr
.attributes
== NULL
) {
330 * Note that the meta_data array and the attributes array must
331 * be the same size and in the same order
333 for (i
=0; i
<obj
->object
.attribute_ctr
.num_attributes
; i
++) {
334 struct ldb_message_element
*el
;
336 const struct dsdb_attribute
*sa
;
338 sa
= dsdb_attribute_by_attributeID_id(schema
, attids
[i
]);
340 DEBUG(0,("Unable to find attributeID %u in schema\n", attids
[i
]));
341 return WERR_DS_DRA_INTERNAL_ERROR
;
344 el
= ldb_msg_find_element(msg
, sa
->lDAPDisplayName
);
346 /* this happens for attributes that have been removed */
347 DEBUG(5,("No element '%s' for attributeID %u in message\n",
348 sa
->lDAPDisplayName
, attids
[i
]));
349 ZERO_STRUCT(obj
->object
.attribute_ctr
.attributes
[i
]);
350 obj
->object
.attribute_ctr
.attributes
[i
].attid
=
351 dsdb_attribute_get_attid(sa
, syntax_ctx
.is_schema_nc
);
353 werr
= sa
->syntax
->ldb_to_drsuapi(&syntax_ctx
, sa
, el
, obj
,
354 &obj
->object
.attribute_ctr
.attributes
[i
]);
355 if (!W_ERROR_IS_OK(werr
)) {
356 DEBUG(0,("Unable to convert %s to DRS object - %s\n",
357 sa
->lDAPDisplayName
, win_errstr(werr
)));
360 /* if DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING is set
361 * check if attribute is secret and send a null value
363 if (replica_flags
& DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
) {
364 drsuapi_process_secret_attribute(&obj
->object
.attribute_ctr
.attributes
[i
],
365 &obj
->meta_data_ctr
->meta_data
[i
]);
367 /* some attributes needs to be encrypted
369 werr
= drsuapi_encrypt_attribute(obj
, session_key
, rid
,
370 &obj
->object
.attribute_ctr
.attributes
[i
]);
371 if (!W_ERROR_IS_OK(werr
)) {
372 DEBUG(0,("Unable to encrypt %s in DRS object - %s\n",
373 sa
->lDAPDisplayName
, win_errstr(werr
)));
383 add one linked attribute from an object to the list of linked
384 attributes in a getncchanges request
386 static WERROR
get_nc_changes_add_la(TALLOC_CTX
*mem_ctx
,
387 struct ldb_context
*sam_ctx
,
388 const struct dsdb_schema
*schema
,
389 const struct dsdb_attribute
*sa
,
390 struct ldb_message
*msg
,
391 struct dsdb_dn
*dsdb_dn
,
392 struct drsuapi_DsReplicaLinkedAttribute
**la_list
,
395 struct drsuapi_DsReplicaLinkedAttribute
*la
;
400 (*la_list
) = talloc_realloc(mem_ctx
, *la_list
, struct drsuapi_DsReplicaLinkedAttribute
, (*la_count
)+1);
401 W_ERROR_HAVE_NO_MEMORY(*la_list
);
403 la
= &(*la_list
)[*la_count
];
405 la
->identifier
= get_object_identifier(*la_list
, msg
);
406 W_ERROR_HAVE_NO_MEMORY(la
->identifier
);
408 active
= (dsdb_dn_rmd_flags(dsdb_dn
->dn
) & DSDB_RMD_FLAG_DELETED
) == 0;
411 /* We have to check that the inactive link still point to an existing object */
417 v
= ldb_msg_find_attr_as_string(msg
, "isDeleted", "FALSE");
418 if (strncmp(v
, "TRUE", 4) == 0) {
420 * Note: we skip the transmition of the deleted link even if the other part used to
421 * know about it because when we transmit the deletion of the object, the link will
422 * be deleted too due to deletion of object where link points and Windows do so.
424 if (dsdb_functional_level(sam_ctx
) >= DS_DOMAIN_FUNCTION_2008_R2
) {
425 v
= ldb_msg_find_attr_as_string(msg
, "isRecycled", "FALSE");
427 * On Windows 2008R2 isRecycled is always present even if FL or DL are < FL 2K8R2
428 * if it join an existing domain with deleted objets, it firsts impose to have a
429 * schema with the is-Recycled object and for all deleted objects it adds the isRecycled
430 * either during initial replication or after the getNCChanges.
431 * Behavior of samba has been changed to always have this attribute if it's present in the schema.
433 * So if FL <2K8R2 isRecycled might be here or not but we don't care, it's meaning less.
434 * If FL >=2K8R2 we are sure that this attribute will be here.
435 * For this kind of forest level we do not return the link if the object is recycled
436 * (isRecycled = true).
438 if (strncmp(v
, "TRUE", 4) == 0) {
439 DEBUG(2, (" object %s is recycled, not returning linked attribute !\n",
440 ldb_dn_get_linearized(msg
->dn
)));
447 status
= dsdb_get_extended_dn_guid(dsdb_dn
->dn
, &guid
, "GUID");
448 if (!NT_STATUS_IS_OK(status
)) {
449 DEBUG(0,(__location__
" Unable to extract GUID in linked attribute '%s' in '%s'\n",
450 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
451 return ntstatus_to_werror(status
);
453 ret
= dsdb_find_dn_by_guid(sam_ctx
, mem_ctx
, &guid
, &tdn
);
454 if (ret
== LDB_ERR_NO_SUCH_OBJECT
) {
455 DEBUG(2, (" Search of guid %s returned 0 objects, skipping it !\n",
456 GUID_string(mem_ctx
, &guid
)));
458 } else if (ret
!= LDB_SUCCESS
) {
459 DEBUG(0, (__location__
" Search of guid %s failed with error code %d\n",
460 GUID_string(mem_ctx
, &guid
),
465 la
->attid
= sa
->attributeID_id
;
466 la
->flags
= active
?DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
:0;
468 status
= dsdb_get_extended_dn_uint32(dsdb_dn
->dn
, &la
->meta_data
.version
, "RMD_VERSION");
469 if (!NT_STATUS_IS_OK(status
)) {
470 DEBUG(0,(__location__
" No RMD_VERSION in linked attribute '%s' in '%s'\n",
471 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
472 return ntstatus_to_werror(status
);
474 status
= dsdb_get_extended_dn_nttime(dsdb_dn
->dn
, &la
->meta_data
.originating_change_time
, "RMD_CHANGETIME");
475 if (!NT_STATUS_IS_OK(status
)) {
476 DEBUG(0,(__location__
" No RMD_CHANGETIME in linked attribute '%s' in '%s'\n",
477 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
478 return ntstatus_to_werror(status
);
480 status
= dsdb_get_extended_dn_guid(dsdb_dn
->dn
, &la
->meta_data
.originating_invocation_id
, "RMD_INVOCID");
481 if (!NT_STATUS_IS_OK(status
)) {
482 DEBUG(0,(__location__
" No RMD_INVOCID in linked attribute '%s' in '%s'\n",
483 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
484 return ntstatus_to_werror(status
);
486 status
= dsdb_get_extended_dn_uint64(dsdb_dn
->dn
, &la
->meta_data
.originating_usn
, "RMD_ORIGINATING_USN");
487 if (!NT_STATUS_IS_OK(status
)) {
488 DEBUG(0,(__location__
" No RMD_ORIGINATING_USN in linked attribute '%s' in '%s'\n",
489 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
490 return ntstatus_to_werror(status
);
493 status
= dsdb_get_extended_dn_nttime(dsdb_dn
->dn
, &la
->originating_add_time
, "RMD_ADDTIME");
494 if (!NT_STATUS_IS_OK(status
)) {
495 /* this is possible for upgraded links */
496 la
->originating_add_time
= la
->meta_data
.originating_change_time
;
499 werr
= dsdb_dn_la_to_blob(sam_ctx
, sa
, schema
, *la_list
, dsdb_dn
, &la
->value
.blob
);
500 W_ERROR_NOT_OK_RETURN(werr
);
508 add linked attributes from an object to the list of linked
509 attributes in a getncchanges request
511 static WERROR
get_nc_changes_add_links(struct ldb_context
*sam_ctx
,
513 struct ldb_dn
*ncRoot_dn
,
514 struct dsdb_schema
*schema
,
515 uint64_t highest_usn
,
516 uint32_t replica_flags
,
517 struct ldb_message
*msg
,
518 struct drsuapi_DsReplicaLinkedAttribute
**la_list
,
520 struct drsuapi_DsReplicaCursorCtrEx
*uptodateness_vector
)
523 TALLOC_CTX
*tmp_ctx
= talloc_new(mem_ctx
);
524 uint64_t uSNChanged
= ldb_msg_find_attr_as_int(msg
, "uSNChanged", -1);
526 for (i
=0; i
<msg
->num_elements
; i
++) {
527 struct ldb_message_element
*el
= &msg
->elements
[i
];
528 const struct dsdb_attribute
*sa
;
531 sa
= dsdb_attribute_by_lDAPDisplayName(schema
, el
->name
);
533 if (!sa
|| sa
->linkID
== 0 || (sa
->linkID
& 1)) {
534 /* we only want forward links */
538 if (el
->num_values
&& !dsdb_dn_is_upgraded_link_val(&el
->values
[0])) {
539 /* its an old style link, it will have been
540 * sent in the main replication data */
544 for (j
=0; j
<el
->num_values
; j
++) {
545 struct dsdb_dn
*dsdb_dn
;
550 dsdb_dn
= dsdb_dn_parse(tmp_ctx
, sam_ctx
, &el
->values
[j
], sa
->syntax
->ldap_oid
);
551 if (dsdb_dn
== NULL
) {
552 DEBUG(1,(__location__
": Failed to parse DN for %s in %s\n",
553 el
->name
, ldb_dn_get_linearized(msg
->dn
)));
554 talloc_free(tmp_ctx
);
555 return WERR_DS_DRA_INTERNAL_ERROR
;
558 status
= dsdb_get_extended_dn_uint64(dsdb_dn
->dn
, &local_usn
, "RMD_LOCAL_USN");
559 if (!NT_STATUS_IS_OK(status
)) {
560 /* this can happen for attributes
561 given to us with old style meta
566 if (local_usn
> uSNChanged
) {
567 DEBUG(1,(__location__
": uSNChanged less than RMD_LOCAL_USN for %s on %s\n",
568 el
->name
, ldb_dn_get_linearized(msg
->dn
)));
569 talloc_free(tmp_ctx
);
570 return WERR_DS_DRA_INTERNAL_ERROR
;
573 if (local_usn
< highest_usn
) {
577 werr
= get_nc_changes_add_la(mem_ctx
, sam_ctx
, schema
, sa
, msg
,
578 dsdb_dn
, la_list
, la_count
);
579 if (!W_ERROR_IS_OK(werr
)) {
580 talloc_free(tmp_ctx
);
586 talloc_free(tmp_ctx
);
591 fill in the cursors return based on the replUpToDateVector for the ncRoot_dn
593 static WERROR
get_nc_changes_udv(struct ldb_context
*sam_ctx
,
594 struct ldb_dn
*ncRoot_dn
,
595 struct drsuapi_DsReplicaCursor2CtrEx
*udv
)
603 ret
= dsdb_load_udv_v2(sam_ctx
, ncRoot_dn
, udv
, &udv
->cursors
, &udv
->count
);
604 if (ret
!= LDB_SUCCESS
) {
605 DEBUG(0,(__location__
": Failed to load UDV for %s - %s\n",
606 ldb_dn_get_linearized(ncRoot_dn
), ldb_errstring(sam_ctx
)));
607 return WERR_DS_DRA_INTERNAL_ERROR
;
614 /* comparison function for linked attributes - see CompareLinks() in
615 * MS-DRSR section 4.1.10.5.17 */
616 static int linked_attribute_compare(const struct drsuapi_DsReplicaLinkedAttribute
*la1
,
617 const struct drsuapi_DsReplicaLinkedAttribute
*la2
,
618 struct ldb_context
*sam_ctx
)
623 const struct dsdb_schema
*schema
;
624 const struct dsdb_attribute
*schema_attrib
;
625 struct dsdb_dn
*dn1
, *dn2
;
626 struct GUID guid1
, guid2
;
629 c
= GUID_compare(&la1
->identifier
->guid
,
630 &la2
->identifier
->guid
);
631 if (c
!= 0) return c
;
633 if (la1
->attid
!= la2
->attid
) {
634 return la1
->attid
< la2
->attid
? -1:1;
637 if ((la1
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
) !=
638 (la2
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
)) {
639 return (la1
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
)? 1:-1;
642 /* we need to get the target GUIDs to compare */
643 tmp_ctx
= talloc_new(sam_ctx
);
645 schema
= dsdb_get_schema(sam_ctx
, tmp_ctx
);
646 schema_attrib
= dsdb_attribute_by_attributeID_id(schema
, la1
->attid
);
648 werr
= dsdb_dn_la_from_blob(sam_ctx
, schema_attrib
, schema
, tmp_ctx
, la1
->value
.blob
, &dn1
);
649 if (!W_ERROR_IS_OK(werr
)) {
650 DEBUG(0,(__location__
": Bad la1 blob in sort\n"));
651 talloc_free(tmp_ctx
);
655 werr
= dsdb_dn_la_from_blob(sam_ctx
, schema_attrib
, schema
, tmp_ctx
, la2
->value
.blob
, &dn2
);
656 if (!W_ERROR_IS_OK(werr
)) {
657 DEBUG(0,(__location__
": Bad la2 blob in sort\n"));
658 talloc_free(tmp_ctx
);
662 status
= dsdb_get_extended_dn_guid(dn1
->dn
, &guid1
, "GUID");
663 if (!NT_STATUS_IS_OK(status
)) {
664 DEBUG(0,(__location__
": Bad la1 guid in sort\n"));
665 talloc_free(tmp_ctx
);
668 status
= dsdb_get_extended_dn_guid(dn2
->dn
, &guid2
, "GUID");
669 if (!NT_STATUS_IS_OK(status
)) {
670 DEBUG(0,(__location__
": Bad la2 guid in sort\n"));
671 talloc_free(tmp_ctx
);
675 talloc_free(tmp_ctx
);
677 return GUID_compare(&guid1
, &guid2
);
680 struct drsuapi_changed_objects
{
687 sort the objects we send by tree order
689 static int site_res_cmp_anc_order(struct drsuapi_changed_objects
*m1
,
690 struct drsuapi_changed_objects
*m2
,
691 struct drsuapi_getncchanges_state
*getnc_state
)
693 return ldb_dn_compare(m2
->dn
, m1
->dn
);
697 sort the objects we send first by uSNChanged
699 static int site_res_cmp_usn_order(struct drsuapi_changed_objects
*m1
,
700 struct drsuapi_changed_objects
*m2
,
701 struct drsuapi_getncchanges_state
*getnc_state
)
705 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
, m1
->dn
);
710 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
, m2
->dn
);
715 if (m1
->usn
== m2
->usn
) {
716 return ldb_dn_compare(m2
->dn
, m1
->dn
);
719 if (m1
->usn
< m2
->usn
) {
728 handle a DRSUAPI_EXOP_FSMO_RID_ALLOC call
730 static WERROR
getncchanges_rid_alloc(struct drsuapi_bind_state
*b_state
,
732 struct drsuapi_DsGetNCChangesRequest10
*req10
,
733 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
735 struct ldb_dn
*rid_manager_dn
, *req_dn
;
737 struct ldb_context
*ldb
= b_state
->sam_ctx
;
738 struct ldb_result
*ext_res
;
739 struct dsdb_fsmo_extended_op
*exop
;
744 - verify that the DN being asked for is the RID Manager DN
745 - verify that we are the RID Manager
748 /* work out who is the RID Manager */
749 ret
= samdb_rid_manager_dn(ldb
, mem_ctx
, &rid_manager_dn
);
750 if (ret
!= LDB_SUCCESS
) {
751 DEBUG(0, (__location__
": Failed to find RID Manager object - %s\n", ldb_errstring(ldb
)));
752 return WERR_DS_DRA_INTERNAL_ERROR
;
755 req_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, ldb
, req10
->naming_context
);
756 if (!ldb_dn_validate(req_dn
) ||
757 ldb_dn_compare(req_dn
, rid_manager_dn
) != 0) {
758 /* that isn't the RID Manager DN */
759 DEBUG(0,(__location__
": RID Alloc request for wrong DN %s\n",
760 drs_ObjectIdentifier_to_string(mem_ctx
, req10
->naming_context
)));
761 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_MISMATCH
;
765 /* find the DN of the RID Manager */
766 ret
= samdb_reference_dn_is_our_ntdsa(ldb
, rid_manager_dn
, "fSMORoleOwner", &is_us
);
767 if (ret
!= LDB_SUCCESS
) {
768 DEBUG(0,("Failed to find fSMORoleOwner in RID Manager object\n"));
769 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
770 return WERR_DS_DRA_INTERNAL_ERROR
;
774 /* we're not the RID Manager - go away */
775 DEBUG(0,(__location__
": RID Alloc request when not RID Manager\n"));
776 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
780 exop
= talloc(mem_ctx
, struct dsdb_fsmo_extended_op
);
781 W_ERROR_HAVE_NO_MEMORY(exop
);
783 exop
->fsmo_info
= req10
->fsmo_info
;
784 exop
->destination_dsa_guid
= req10
->destination_dsa_guid
;
786 ret
= ldb_transaction_start(ldb
);
787 if (ret
!= LDB_SUCCESS
) {
788 DEBUG(0,(__location__
": Failed transaction start - %s\n",
789 ldb_errstring(ldb
)));
790 return WERR_DS_DRA_INTERNAL_ERROR
;
794 * FIXME (kim): this is a temp hack to return just few object,
795 * but not the whole domain NC.
796 * We should remove this hack and implement a 'scope'
797 * building function to return just the set of object
798 * documented for DRSUAPI_EXOP_FSMO_RID_ALLOC extended_op
800 ldb_sequence_number(ldb
, LDB_SEQ_HIGHEST_SEQ
, &req10
->highwatermark
.highest_usn
);
802 ret
= ldb_extended(ldb
, DSDB_EXTENDED_ALLOCATE_RID_POOL
, exop
, &ext_res
);
803 if (ret
!= LDB_SUCCESS
) {
804 DEBUG(0,(__location__
": Failed extended allocation RID pool operation - %s\n",
805 ldb_errstring(ldb
)));
806 ldb_transaction_cancel(ldb
);
807 return WERR_DS_DRA_INTERNAL_ERROR
;
810 ret
= ldb_transaction_commit(ldb
);
811 if (ret
!= LDB_SUCCESS
) {
812 DEBUG(0,(__location__
": Failed transaction commit - %s\n",
813 ldb_errstring(ldb
)));
814 return WERR_DS_DRA_INTERNAL_ERROR
;
817 talloc_free(ext_res
);
819 DEBUG(2,("Allocated RID pool for server %s\n",
820 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
)));
822 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
828 return an array of SIDs from a ldb_message given an attribute name
829 assumes the SIDs are in extended DN format
831 static WERROR
samdb_result_sid_array_dn(struct ldb_context
*sam_ctx
,
832 struct ldb_message
*msg
,
835 const struct dom_sid
***sids
)
837 struct ldb_message_element
*el
;
840 el
= ldb_msg_find_element(msg
, attr
);
846 (*sids
) = talloc_array(mem_ctx
, const struct dom_sid
*, el
->num_values
+ 1);
847 W_ERROR_HAVE_NO_MEMORY(*sids
);
849 for (i
=0; i
<el
->num_values
; i
++) {
850 struct ldb_dn
*dn
= ldb_dn_from_ldb_val(mem_ctx
, sam_ctx
, &el
->values
[i
]);
854 sid
= talloc(*sids
, struct dom_sid
);
855 W_ERROR_HAVE_NO_MEMORY(sid
);
856 status
= dsdb_get_extended_dn_sid(dn
, sid
, "SID");
857 if (!NT_STATUS_IS_OK(status
)) {
858 return WERR_INTERNAL_DB_CORRUPTION
;
869 return an array of SIDs from a ldb_message given an attribute name
870 assumes the SIDs are in NDR form
872 static WERROR
samdb_result_sid_array_ndr(struct ldb_context
*sam_ctx
,
873 struct ldb_message
*msg
,
876 const struct dom_sid
***sids
)
878 struct ldb_message_element
*el
;
881 el
= ldb_msg_find_element(msg
, attr
);
887 (*sids
) = talloc_array(mem_ctx
, const struct dom_sid
*, el
->num_values
+ 1);
888 W_ERROR_HAVE_NO_MEMORY(*sids
);
890 for (i
=0; i
<el
->num_values
; i
++) {
891 enum ndr_err_code ndr_err
;
894 sid
= talloc(*sids
, struct dom_sid
);
895 W_ERROR_HAVE_NO_MEMORY(sid
);
897 ndr_err
= ndr_pull_struct_blob(&el
->values
[i
], sid
, sid
,
898 (ndr_pull_flags_fn_t
)ndr_pull_dom_sid
);
899 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
900 return WERR_INTERNAL_DB_CORRUPTION
;
910 see if any SIDs in list1 are in list2
912 static bool sid_list_match(const struct dom_sid
**list1
, const struct dom_sid
**list2
)
915 /* do we ever have enough SIDs here to worry about O(n^2) ? */
916 for (i
=0; list1
[i
]; i
++) {
917 for (j
=0; list2
[j
]; j
++) {
918 if (dom_sid_equal(list1
[i
], list2
[j
])) {
927 handle a DRSUAPI_EXOP_REPL_SECRET call
929 static WERROR
getncchanges_repl_secret(struct drsuapi_bind_state
*b_state
,
931 struct drsuapi_DsGetNCChangesRequest10
*req10
,
932 struct dom_sid
*user_sid
,
933 struct drsuapi_DsGetNCChangesCtr6
*ctr6
,
934 bool has_get_all_changes
)
936 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
= req10
->naming_context
;
937 struct ldb_dn
*obj_dn
, *rodc_dn
, *krbtgt_link_dn
;
939 const char *rodc_attrs
[] = { "msDS-KrbTgtLink", "msDS-NeverRevealGroup", "msDS-RevealOnDemandGroup", NULL
};
940 const char *obj_attrs
[] = { "tokenGroups", "objectSid", "UserAccountControl", "msDS-KrbTgtLinkBL", NULL
};
941 struct ldb_result
*rodc_res
, *obj_res
;
942 const struct dom_sid
**never_reveal_sids
, **reveal_sids
, **token_sids
;
945 DEBUG(3,(__location__
": DRSUAPI_EXOP_REPL_SECRET extended op on %s\n",
946 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
949 * we need to work out if we will allow this DC to
950 * replicate the secrets for this object
952 * see 4.1.10.5.14 GetRevealSecretsPolicyForUser for details
956 if (b_state
->sam_ctx_system
== NULL
) {
957 /* this operation needs system level access */
958 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_ACCESS_DENIED
;
959 return WERR_DS_DRA_SOURCE_DISABLED
;
963 * In MS-DRSR.pdf 5.99 IsGetNCChangesPermissionGranted
965 * The pseudo code indicate
966 * revealsecrets = true
967 * if IsRevealSecretRequest(msgIn) then
968 * if AccessCheckCAR(ncRoot, Ds-Replication-Get-Changes-All) = false
970 * if (msgIn.ulExtendedOp = EXOP_REPL_SECRETS) then
971 * <... check if this account is ok to be replicated on this DC ...>
972 * <... and if not reveal secrets = no ...>
974 * reveal secrets = false
979 * Which basically means that if you have GET_ALL_CHANGES rights (~== RWDC)
980 * then you can do EXOP_REPL_SECRETS
982 if (has_get_all_changes
) {
986 obj_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, b_state
->sam_ctx_system
, ncRoot
);
987 if (!ldb_dn_validate(obj_dn
)) goto failed
;
989 rodc_dn
= ldb_dn_new_fmt(mem_ctx
, b_state
->sam_ctx_system
, "<SID=%s>",
990 dom_sid_string(mem_ctx
, user_sid
));
991 if (!ldb_dn_validate(rodc_dn
)) goto failed
;
993 /* do the two searches we need */
994 ret
= dsdb_search_dn(b_state
->sam_ctx_system
, mem_ctx
, &rodc_res
, rodc_dn
, rodc_attrs
,
995 DSDB_SEARCH_SHOW_EXTENDED_DN
);
996 if (ret
!= LDB_SUCCESS
|| rodc_res
->count
!= 1) goto failed
;
998 ret
= dsdb_search_dn(b_state
->sam_ctx_system
, mem_ctx
, &obj_res
, obj_dn
, obj_attrs
, 0);
999 if (ret
!= LDB_SUCCESS
|| obj_res
->count
!= 1) goto failed
;
1001 /* if the object SID is equal to the user_sid, allow */
1002 if (dom_sid_equal(user_sid
,
1003 samdb_result_dom_sid(mem_ctx
, obj_res
->msgs
[0], "objectSid"))) {
1007 /* an RODC is allowed to get its own krbtgt account secrets */
1008 krbtgt_link_dn
= samdb_result_dn(b_state
->sam_ctx_system
, mem_ctx
,
1009 rodc_res
->msgs
[0], "msDS-KrbTgtLink", NULL
);
1010 if (krbtgt_link_dn
!= NULL
&&
1011 ldb_dn_compare(obj_dn
, krbtgt_link_dn
) == 0) {
1015 /* but it isn't allowed to get anyone elses krbtgt secrets */
1016 if (samdb_result_dn(b_state
->sam_ctx_system
, mem_ctx
,
1017 obj_res
->msgs
[0], "msDS-KrbTgtLinkBL", NULL
)) {
1021 if (ldb_msg_find_attr_as_uint(obj_res
->msgs
[0],
1022 "userAccountControl", 0) &
1023 UF_INTERDOMAIN_TRUST_ACCOUNT
) {
1027 werr
= samdb_result_sid_array_dn(b_state
->sam_ctx_system
, rodc_res
->msgs
[0],
1028 mem_ctx
, "msDS-NeverRevealGroup", &never_reveal_sids
);
1029 if (!W_ERROR_IS_OK(werr
)) {
1033 werr
= samdb_result_sid_array_dn(b_state
->sam_ctx_system
, rodc_res
->msgs
[0],
1034 mem_ctx
, "msDS-RevealOnDemandGroup", &reveal_sids
);
1035 if (!W_ERROR_IS_OK(werr
)) {
1039 werr
= samdb_result_sid_array_ndr(b_state
->sam_ctx_system
, obj_res
->msgs
[0],
1040 mem_ctx
, "tokenGroups", &token_sids
);
1041 if (!W_ERROR_IS_OK(werr
) || token_sids
==NULL
) {
1045 if (never_reveal_sids
&&
1046 sid_list_match(token_sids
, never_reveal_sids
)) {
1051 sid_list_match(token_sids
, reveal_sids
)) {
1057 DEBUG(2,(__location__
": Denied single object with secret replication for %s by RODC %s\n",
1058 ldb_dn_get_linearized(obj_dn
), ldb_dn_get_linearized(rodc_res
->msgs
[0]->dn
)));
1059 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_NONE
;
1060 return WERR_DS_DRA_ACCESS_DENIED
;
1063 DEBUG(2,(__location__
": Allowed single object with secret replication for %s by %s %s\n",
1064 ldb_dn_get_linearized(obj_dn
), has_get_all_changes
?"RWDC":"RODC",
1065 ldb_dn_get_linearized(rodc_res
->msgs
[0]->dn
)));
1066 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1067 req10
->highwatermark
.highest_usn
= 0;
1071 DEBUG(2,(__location__
": Failed single secret replication for %s by RODC %s\n",
1072 ldb_dn_get_linearized(obj_dn
), dom_sid_string(mem_ctx
, user_sid
)));
1073 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_NONE
;
1074 return WERR_DS_DRA_BAD_DN
;
1079 handle a DRSUAPI_EXOP_REPL_OBJ call
1081 static WERROR
getncchanges_repl_obj(struct drsuapi_bind_state
*b_state
,
1082 TALLOC_CTX
*mem_ctx
,
1083 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1084 struct dom_sid
*user_sid
,
1085 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
1087 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
= req10
->naming_context
;
1089 DEBUG(3,(__location__
": DRSUAPI_EXOP_REPL_OBJ extended op on %s\n",
1090 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
1092 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1098 handle DRSUAPI_EXOP_FSMO_REQ_ROLE,
1099 DRSUAPI_EXOP_FSMO_RID_REQ_ROLE,
1100 and DRSUAPI_EXOP_FSMO_REQ_PDC calls
1102 static WERROR
getncchanges_change_master(struct drsuapi_bind_state
*b_state
,
1103 TALLOC_CTX
*mem_ctx
,
1104 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1105 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
1107 struct ldb_dn
*req_dn
, *ntds_dn
;
1110 struct ldb_context
*ldb
= b_state
->sam_ctx
;
1111 struct ldb_message
*msg
;
1116 - verify that the client dn exists
1117 - verify that we are the current master
1120 req_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, ldb
, req10
->naming_context
);
1121 if (!ldb_dn_validate(req_dn
)) {
1122 /* that is not a valid dn */
1123 DEBUG(0,(__location__
": FSMO role transfer request for invalid DN %s\n",
1124 drs_ObjectIdentifier_to_string(mem_ctx
, req10
->naming_context
)));
1125 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_MISMATCH
;
1129 /* retrieve the current role owner */
1130 /* find the DN of the RID Manager */
1131 ret
= samdb_reference_dn_is_our_ntdsa(ldb
, req_dn
, "fSMORoleOwner", &is_us
);
1132 if (ret
!= LDB_SUCCESS
) {
1133 DEBUG(0,("Failed to find fSMORoleOwner in RID Manager object\n"));
1134 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
1135 return WERR_DS_DRA_INTERNAL_ERROR
;
1139 /* we're not the RID Manager - go away */
1140 DEBUG(0,(__location__
": RID Alloc request when not RID Manager\n"));
1141 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
1145 /* change the current master */
1146 msg
= ldb_msg_new(ldb
);
1147 W_ERROR_HAVE_NO_MEMORY(msg
);
1148 msg
->dn
= drs_ObjectIdentifier_to_dn(msg
, ldb
, req10
->naming_context
);
1149 W_ERROR_HAVE_NO_MEMORY(msg
->dn
);
1151 /* TODO: make sure ntds_dn is a valid nTDSDSA object */
1152 ret
= dsdb_find_dn_by_guid(ldb
, msg
, &req10
->destination_dsa_guid
, &ntds_dn
);
1153 if (ret
!= LDB_SUCCESS
) {
1154 DEBUG(0, (__location__
": Unable to find NTDS object for guid %s - %s\n",
1155 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
), ldb_errstring(ldb
)));
1157 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_UNKNOWN_CALLER
;
1161 ret
= ldb_msg_add_string(msg
, "fSMORoleOwner", ldb_dn_get_linearized(ntds_dn
));
1164 return WERR_DS_DRA_INTERNAL_ERROR
;
1167 for (i
=0;i
<msg
->num_elements
;i
++) {
1168 msg
->elements
[i
].flags
= LDB_FLAG_MOD_REPLACE
;
1171 ret
= ldb_transaction_start(ldb
);
1172 if (ret
!= LDB_SUCCESS
) {
1173 DEBUG(0,(__location__
": Failed transaction start - %s\n",
1174 ldb_errstring(ldb
)));
1175 return WERR_DS_DRA_INTERNAL_ERROR
;
1178 ret
= ldb_modify(ldb
, msg
);
1179 if (ret
!= LDB_SUCCESS
) {
1180 DEBUG(0,(__location__
": Failed to change current owner - %s\n",
1181 ldb_errstring(ldb
)));
1182 ldb_transaction_cancel(ldb
);
1183 return WERR_DS_DRA_INTERNAL_ERROR
;
1186 ret
= ldb_transaction_commit(ldb
);
1187 if (ret
!= LDB_SUCCESS
) {
1188 DEBUG(0,(__location__
": Failed transaction commit - %s\n",
1189 ldb_errstring(ldb
)));
1190 return WERR_DS_DRA_INTERNAL_ERROR
;
1193 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1199 see if this getncchanges request includes a request to reveal secret information
1201 static WERROR
dcesrv_drsuapi_is_reveal_secrets_request(struct drsuapi_bind_state
*b_state
,
1202 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1203 bool *is_secret_request
)
1205 enum drsuapi_DsExtendedOperation exop
;
1207 struct dsdb_schema
*schema
;
1209 *is_secret_request
= true;
1211 exop
= req10
->extended_op
;
1214 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1215 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1216 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1217 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1218 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1219 /* FSMO exops can reveal secrets */
1220 *is_secret_request
= true;
1222 case DRSUAPI_EXOP_REPL_SECRET
:
1223 case DRSUAPI_EXOP_REPL_OBJ
:
1224 case DRSUAPI_EXOP_NONE
:
1228 if (req10
->replica_flags
& DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
) {
1229 *is_secret_request
= false;
1233 if (exop
== DRSUAPI_EXOP_REPL_SECRET
||
1234 req10
->partial_attribute_set
== NULL
) {
1235 /* they want secrets */
1236 *is_secret_request
= true;
1240 schema
= dsdb_get_schema(b_state
->sam_ctx
, NULL
);
1242 /* check the attributes they asked for */
1243 for (i
=0; i
<req10
->partial_attribute_set
->num_attids
; i
++) {
1244 const struct dsdb_attribute
*sa
;
1245 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set
->attids
[i
]);
1247 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1249 if (!dsdb_attr_in_rodc_fas(sa
)) {
1250 *is_secret_request
= true;
1255 if (req10
->partial_attribute_set_ex
) {
1256 /* check the extended attributes they asked for */
1257 for (i
=0; i
<req10
->partial_attribute_set_ex
->num_attids
; i
++) {
1258 const struct dsdb_attribute
*sa
;
1259 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set_ex
->attids
[i
]);
1261 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1263 if (!dsdb_attr_in_rodc_fas(sa
)) {
1264 *is_secret_request
= true;
1270 *is_secret_request
= false;
1275 see if this getncchanges request is only for attributes in the GC
1276 partial attribute set
1278 static WERROR
dcesrv_drsuapi_is_gc_pas_request(struct drsuapi_bind_state
*b_state
,
1279 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1280 bool *is_gc_pas_request
)
1282 enum drsuapi_DsExtendedOperation exop
;
1284 struct dsdb_schema
*schema
;
1286 exop
= req10
->extended_op
;
1289 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1290 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1291 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1292 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1293 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1294 case DRSUAPI_EXOP_REPL_SECRET
:
1295 *is_gc_pas_request
= false;
1297 case DRSUAPI_EXOP_REPL_OBJ
:
1298 case DRSUAPI_EXOP_NONE
:
1302 if (req10
->partial_attribute_set
== NULL
) {
1303 /* they want it all */
1304 *is_gc_pas_request
= false;
1308 schema
= dsdb_get_schema(b_state
->sam_ctx
, NULL
);
1310 /* check the attributes they asked for */
1311 for (i
=0; i
<req10
->partial_attribute_set
->num_attids
; i
++) {
1312 const struct dsdb_attribute
*sa
;
1313 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set
->attids
[i
]);
1315 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1317 if (!sa
->isMemberOfPartialAttributeSet
) {
1318 *is_gc_pas_request
= false;
1323 if (req10
->partial_attribute_set_ex
) {
1324 /* check the extended attributes they asked for */
1325 for (i
=0; i
<req10
->partial_attribute_set_ex
->num_attids
; i
++) {
1326 const struct dsdb_attribute
*sa
;
1327 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set_ex
->attids
[i
]);
1329 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1331 if (!sa
->isMemberOfPartialAttributeSet
) {
1332 *is_gc_pas_request
= false;
1338 *is_gc_pas_request
= true;
1344 map from req8 to req10
1346 static struct drsuapi_DsGetNCChangesRequest10
*
1347 getncchanges_map_req8(TALLOC_CTX
*mem_ctx
,
1348 struct drsuapi_DsGetNCChangesRequest8
*req8
)
1350 struct drsuapi_DsGetNCChangesRequest10
*req10
= talloc_zero(mem_ctx
,
1351 struct drsuapi_DsGetNCChangesRequest10
);
1352 if (req10
== NULL
) {
1356 req10
->destination_dsa_guid
= req8
->destination_dsa_guid
;
1357 req10
->source_dsa_invocation_id
= req8
->source_dsa_invocation_id
;
1358 req10
->naming_context
= req8
->naming_context
;
1359 req10
->highwatermark
= req8
->highwatermark
;
1360 req10
->uptodateness_vector
= req8
->uptodateness_vector
;
1361 req10
->replica_flags
= req8
->replica_flags
;
1362 req10
->max_object_count
= req8
->max_object_count
;
1363 req10
->max_ndr_size
= req8
->max_ndr_size
;
1364 req10
->extended_op
= req8
->extended_op
;
1365 req10
->fsmo_info
= req8
->fsmo_info
;
1366 req10
->partial_attribute_set
= req8
->partial_attribute_set
;
1367 req10
->partial_attribute_set_ex
= req8
->partial_attribute_set_ex
;
1368 req10
->mapping_ctr
= req8
->mapping_ctr
;
1375 * Collects object for normal replication cycle.
1377 static WERROR
getncchanges_collect_objects(struct drsuapi_bind_state
*b_state
,
1378 TALLOC_CTX
*mem_ctx
,
1379 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1380 struct ldb_dn
*search_dn
,
1381 const char *extra_filter
,
1382 struct ldb_result
**search_res
)
1385 char* search_filter
;
1386 enum ldb_scope scope
= LDB_SCOPE_SUBTREE
;
1387 //const char *extra_filter;
1388 struct drsuapi_getncchanges_state
*getnc_state
= b_state
->getncchanges_state
;
1389 const char *attrs
[] = { "uSNChanged",
1393 if (req10
->extended_op
== DRSUAPI_EXOP_REPL_OBJ
||
1394 req10
->extended_op
== DRSUAPI_EXOP_REPL_SECRET
) {
1395 scope
= LDB_SCOPE_BASE
;
1398 //extra_filter = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "object filter");
1400 //getnc_state->min_usn = req10->highwatermark.highest_usn;
1402 /* Construct response. */
1403 search_filter
= talloc_asprintf(mem_ctx
,
1404 "(uSNChanged>=%llu)",
1405 (unsigned long long)(getnc_state
->min_usn
+1));
1408 search_filter
= talloc_asprintf(mem_ctx
, "(&%s(%s))", search_filter
, extra_filter
);
1411 if (req10
->replica_flags
& DRSUAPI_DRS_CRITICAL_ONLY
) {
1412 search_filter
= talloc_asprintf(mem_ctx
,
1413 "(&%s(isCriticalSystemObject=TRUE))",
1417 if (req10
->replica_flags
& DRSUAPI_DRS_ASYNC_REP
) {
1418 scope
= LDB_SCOPE_BASE
;
1422 search_dn
= getnc_state
->ncRoot_dn
;
1425 DEBUG(2,(__location__
": getncchanges on %s using filter %s\n",
1426 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
), search_filter
));
1427 ret
= drsuapi_search_with_extended_dn(b_state
->sam_ctx
, getnc_state
, search_res
,
1428 search_dn
, scope
, attrs
,
1430 if (ret
!= LDB_SUCCESS
) {
1431 return WERR_DS_DRA_INTERNAL_ERROR
;
1438 * Collects object for normal replication cycle.
1440 static WERROR
getncchanges_collect_objects_exop(struct drsuapi_bind_state
*b_state
,
1441 TALLOC_CTX
*mem_ctx
,
1442 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1443 struct drsuapi_DsGetNCChangesCtr6
*ctr6
,
1444 struct ldb_dn
*search_dn
,
1445 const char *extra_filter
,
1446 struct ldb_result
**search_res
)
1448 /* we have nothing to do in case of ex-op failure */
1449 if (ctr6
->extended_ret
!= DRSUAPI_EXOP_ERR_SUCCESS
) {
1453 /* TODO: implement extended op specific collection
1454 * of objects. Right now we just normal procedure
1455 * for collecting objects */
1456 return getncchanges_collect_objects(b_state
, mem_ctx
, req10
, search_dn
, extra_filter
, search_res
);
1460 drsuapi_DsGetNCChanges
1462 see MS-DRSR 4.1.10.5.2 for basic logic of this function
1464 WERROR
dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state
*dce_call
, TALLOC_CTX
*mem_ctx
,
1465 struct drsuapi_DsGetNCChanges
*r
)
1467 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
;
1470 struct dsdb_schema
*schema
;
1471 struct drsuapi_DsReplicaOIDMapping_Ctr
*ctr
;
1472 struct drsuapi_DsReplicaObjectListItemEx
**currentObject
;
1474 DATA_BLOB session_key
;
1476 struct dcesrv_handle
*h
;
1477 struct drsuapi_bind_state
*b_state
;
1478 struct drsuapi_getncchanges_state
*getnc_state
;
1479 struct drsuapi_DsGetNCChangesRequest10
*req10
;
1481 uint32_t max_objects
;
1483 uint32_t link_count
= 0;
1484 uint32_t link_total
= 0;
1485 uint32_t link_given
= 0;
1486 struct ldb_dn
*search_dn
= NULL
;
1487 bool am_rodc
, null_scope
=false;
1488 enum security_user_level security_level
;
1489 struct ldb_context
*sam_ctx
;
1490 struct dom_sid
*user_sid
;
1491 bool is_secret_request
;
1492 bool is_gc_pas_request
;
1493 struct drsuapi_changed_objects
*changes
;
1495 time_t start
= time(NULL
);
1496 bool max_wait_reached
= false;
1497 bool has_get_all_changes
= false;
1498 struct GUID invocation_id
;
1500 DCESRV_PULL_HANDLE_WERR(h
, r
->in
.bind_handle
, DRSUAPI_BIND_HANDLE
);
1503 sam_ctx
= b_state
->sam_ctx_system
?b_state
->sam_ctx_system
:b_state
->sam_ctx
;
1505 invocation_id
= *(samdb_ntds_invocation_id(sam_ctx
));
1507 *r
->out
.level_out
= 6;
1508 /* TODO: linked attributes*/
1509 r
->out
.ctr
->ctr6
.linked_attributes_count
= 0;
1510 r
->out
.ctr
->ctr6
.linked_attributes
= NULL
;
1512 r
->out
.ctr
->ctr6
.object_count
= 0;
1513 r
->out
.ctr
->ctr6
.nc_object_count
= 0;
1514 r
->out
.ctr
->ctr6
.more_data
= false;
1515 r
->out
.ctr
->ctr6
.uptodateness_vector
= NULL
;
1517 /* a RODC doesn't allow for any replication */
1518 ret
= samdb_rodc(sam_ctx
, &am_rodc
);
1519 if (ret
== LDB_SUCCESS
&& am_rodc
) {
1520 DEBUG(0,(__location__
": DsGetNCChanges attempt on RODC\n"));
1521 return WERR_DS_DRA_SOURCE_DISABLED
;
1524 /* Check request revision.
1526 switch (r
->in
.level
) {
1528 req10
= getncchanges_map_req8(mem_ctx
, &r
->in
.req
->req8
);
1529 if (req10
== NULL
) {
1534 req10
= &r
->in
.req
->req10
;
1537 DEBUG(0,(__location__
": Request for DsGetNCChanges with unsupported level %u\n",
1539 return WERR_REVISION_MISMATCH
;
1543 /* Perform access checks. */
1544 /* TODO: we need to support a sync on a specific non-root
1545 * DN. We'll need to find the real partition root here */
1546 ncRoot
= req10
->naming_context
;
1547 if (ncRoot
== NULL
) {
1548 DEBUG(0,(__location__
": Request for DsGetNCChanges with no NC\n"));
1549 return WERR_DS_DRA_INVALID_PARAMETER
;
1552 if (samdb_ntds_options(sam_ctx
, &options
) != LDB_SUCCESS
) {
1553 return WERR_DS_DRA_INTERNAL_ERROR
;
1556 if ((options
& DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL
) &&
1557 !(req10
->replica_flags
& DRSUAPI_DRS_SYNC_FORCED
)) {
1558 return WERR_DS_DRA_SOURCE_DISABLED
;
1561 user_sid
= &dce_call
->conn
->auth_state
.session_info
->security_token
->sids
[PRIMARY_USER_SID_INDEX
];
1563 /* all clients must have GUID_DRS_GET_CHANGES */
1564 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1566 dce_call
->conn
->auth_state
.session_info
->security_token
,
1567 req10
->naming_context
,
1568 GUID_DRS_GET_CHANGES
);
1569 if (!W_ERROR_IS_OK(werr
)) {
1573 /* allowed if the GC PAS and client has
1574 GUID_DRS_GET_FILTERED_ATTRIBUTES */
1575 werr
= dcesrv_drsuapi_is_gc_pas_request(b_state
, req10
, &is_gc_pas_request
);
1576 if (!W_ERROR_IS_OK(werr
)) {
1579 if (is_gc_pas_request
) {
1580 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1582 dce_call
->conn
->auth_state
.session_info
->security_token
,
1583 req10
->naming_context
,
1584 GUID_DRS_GET_FILTERED_ATTRIBUTES
);
1585 if (W_ERROR_IS_OK(werr
)) {
1590 werr
= dcesrv_drsuapi_is_reveal_secrets_request(b_state
, req10
, &is_secret_request
);
1591 if (!W_ERROR_IS_OK(werr
)) {
1594 if (is_secret_request
&& req10
->extended_op
!= DRSUAPI_EXOP_REPL_SECRET
) {
1595 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1597 dce_call
->conn
->auth_state
.session_info
->security_token
,
1598 req10
->naming_context
,
1599 GUID_DRS_GET_ALL_CHANGES
);
1600 if (!W_ERROR_IS_OK(werr
)) {
1603 has_get_all_changes
= true;
1608 /* for non-administrator replications, check that they have
1609 given the correct source_dsa_invocation_id */
1610 security_level
= security_session_user_level(dce_call
->conn
->auth_state
.session_info
,
1611 samdb_domain_sid(sam_ctx
));
1612 if (security_level
== SECURITY_RO_DOMAIN_CONTROLLER
) {
1613 if (req10
->replica_flags
& DRSUAPI_DRS_WRIT_REP
) {
1614 /* we rely on this flag being unset for RODC requests */
1615 req10
->replica_flags
&= ~DRSUAPI_DRS_WRIT_REP
;
1619 if (req10
->replica_flags
& DRSUAPI_DRS_FULL_SYNC_PACKET
) {
1620 /* Ignore the _in_ uptpdateness vector*/
1621 req10
->uptodateness_vector
= NULL
;
1624 if (GUID_all_zero(&req10
->source_dsa_invocation_id
)) {
1625 req10
->source_dsa_invocation_id
= invocation_id
;
1628 if (!GUID_equal(&req10
->source_dsa_invocation_id
, &invocation_id
)) {
1630 * The given highwatermark is only valid relative to the
1631 * specified source_dsa_invocation_id.
1633 ZERO_STRUCT(req10
->highwatermark
);
1636 getnc_state
= b_state
->getncchanges_state
;
1638 /* see if a previous replication has been abandoned */
1640 struct ldb_dn
*new_dn
= drs_ObjectIdentifier_to_dn(getnc_state
, sam_ctx
, ncRoot
);
1641 if (ldb_dn_compare(new_dn
, getnc_state
->ncRoot_dn
) != 0) {
1642 DEBUG(0,(__location__
": DsGetNCChanges 2nd replication on different DN %s %s (last_dn %s)\n",
1643 ldb_dn_get_linearized(new_dn
),
1644 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
),
1645 ldb_dn_get_linearized(getnc_state
->last_dn
)));
1646 talloc_free(getnc_state
);
1652 ret
= drsuapi_DsReplicaHighWaterMark_cmp(&getnc_state
->last_hwm
,
1653 &req10
->highwatermark
);
1655 DEBUG(0,(__location__
": DsGetNCChanges 2nd replication "
1656 "on DN %s %s highwatermark (last_dn %s)\n",
1657 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
),
1658 (ret
> 0) ? "older" : "newer",
1659 ldb_dn_get_linearized(getnc_state
->last_dn
)));
1660 talloc_free(getnc_state
);
1665 if (getnc_state
== NULL
) {
1666 getnc_state
= talloc_zero(b_state
, struct drsuapi_getncchanges_state
);
1667 if (getnc_state
== NULL
) {
1670 b_state
->getncchanges_state
= getnc_state
;
1671 getnc_state
->ncRoot_dn
= drs_ObjectIdentifier_to_dn(getnc_state
, sam_ctx
, ncRoot
);
1673 /* find out if we are to replicate Schema NC */
1674 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
,
1675 ldb_get_schema_basedn(b_state
->sam_ctx
));
1676 getnc_state
->is_schema_nc
= (0 == ret
);
1678 if (req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
1679 r
->out
.ctr
->ctr6
.extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1683 * This is the first replication cycle and it is
1684 * a good place to handle extended operations
1686 * FIXME: we don't fully support extended operations yet
1688 switch (req10
->extended_op
) {
1689 case DRSUAPI_EXOP_NONE
:
1691 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1692 werr
= getncchanges_rid_alloc(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1693 W_ERROR_NOT_OK_RETURN(werr
);
1694 search_dn
= ldb_get_default_basedn(sam_ctx
);
1696 case DRSUAPI_EXOP_REPL_SECRET
:
1697 werr
= getncchanges_repl_secret(b_state
, mem_ctx
, req10
,
1700 has_get_all_changes
);
1701 r
->out
.result
= werr
;
1702 W_ERROR_NOT_OK_RETURN(werr
);
1704 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1705 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1706 W_ERROR_NOT_OK_RETURN(werr
);
1708 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1709 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1710 W_ERROR_NOT_OK_RETURN(werr
);
1712 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1713 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1714 W_ERROR_NOT_OK_RETURN(werr
);
1716 case DRSUAPI_EXOP_REPL_OBJ
:
1717 werr
= getncchanges_repl_obj(b_state
, mem_ctx
, req10
, user_sid
, &r
->out
.ctr
->ctr6
);
1718 r
->out
.result
= werr
;
1719 W_ERROR_NOT_OK_RETURN(werr
);
1722 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1724 DEBUG(0,(__location__
": Request for DsGetNCChanges unsupported extended op 0x%x\n",
1725 (unsigned)req10
->extended_op
));
1726 return WERR_DS_DRA_NOT_SUPPORTED
;
1730 if (!ldb_dn_validate(getnc_state
->ncRoot_dn
) ||
1731 ldb_dn_is_null(getnc_state
->ncRoot_dn
)) {
1732 DEBUG(0,(__location__
": Bad DN '%s'\n",
1733 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
1734 return WERR_DS_DRA_INVALID_PARAMETER
;
1737 /* we need the session key for encrypting password attributes */
1738 status
= dcesrv_inherited_session_key(dce_call
->conn
, &session_key
);
1739 if (!NT_STATUS_IS_OK(status
)) {
1740 DEBUG(0,(__location__
": Failed to get session key\n"));
1741 return WERR_DS_DRA_INTERNAL_ERROR
;
1745 TODO: MS-DRSR section 4.1.10.1.1
1746 Work out if this is the start of a new cycle */
1748 if (getnc_state
->guids
== NULL
) {
1749 const char *extra_filter
;
1750 struct ldb_result
*search_res
= NULL
;
1752 extra_filter
= lpcfg_parm_string(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "object filter");
1754 getnc_state
->min_usn
= req10
->highwatermark
.highest_usn
;
1755 getnc_state
->max_usn
= getnc_state
->min_usn
;
1757 getnc_state
->final_udv
= talloc_zero(getnc_state
,
1758 struct drsuapi_DsReplicaCursor2CtrEx
);
1759 if (getnc_state
->final_udv
== NULL
) {
1762 werr
= get_nc_changes_udv(sam_ctx
, getnc_state
->ncRoot_dn
,
1763 getnc_state
->final_udv
);
1764 if (!W_ERROR_IS_OK(werr
)) {
1768 if (req10
->extended_op
== DRSUAPI_EXOP_NONE
) {
1769 werr
= getncchanges_collect_objects(b_state
, mem_ctx
, req10
,
1770 search_dn
, extra_filter
,
1773 werr
= getncchanges_collect_objects_exop(b_state
, mem_ctx
, req10
,
1775 search_dn
, extra_filter
,
1778 W_ERROR_NOT_OK_RETURN(werr
);
1780 /* extract out the GUIDs list */
1781 getnc_state
->num_records
= search_res
? search_res
->count
: 0;
1782 getnc_state
->guids
= talloc_array(getnc_state
, struct GUID
, getnc_state
->num_records
);
1783 W_ERROR_HAVE_NO_MEMORY(getnc_state
->guids
);
1785 changes
= talloc_array(getnc_state
,
1786 struct drsuapi_changed_objects
,
1787 getnc_state
->num_records
);
1788 W_ERROR_HAVE_NO_MEMORY(changes
);
1790 for (i
=0; i
<getnc_state
->num_records
; i
++) {
1791 changes
[i
].dn
= search_res
->msgs
[i
]->dn
;
1792 changes
[i
].guid
= samdb_result_guid(search_res
->msgs
[i
], "objectGUID");
1793 changes
[i
].usn
= ldb_msg_find_attr_as_uint64(search_res
->msgs
[i
], "uSNChanged", 0);
1795 if (changes
[i
].usn
> getnc_state
->max_usn
) {
1796 getnc_state
->max_usn
= changes
[i
].usn
;
1800 if (req10
->replica_flags
& DRSUAPI_DRS_GET_ANC
) {
1801 LDB_TYPESAFE_QSORT(changes
,
1802 getnc_state
->num_records
,
1804 site_res_cmp_anc_order
);
1806 LDB_TYPESAFE_QSORT(changes
,
1807 getnc_state
->num_records
,
1809 site_res_cmp_usn_order
);
1812 for (i
=0; i
< getnc_state
->num_records
; i
++) {
1813 getnc_state
->guids
[i
] = changes
[i
].guid
;
1814 if (GUID_all_zero(&getnc_state
->guids
[i
])) {
1815 DEBUG(2,("getncchanges: bad objectGUID from %s\n",
1816 ldb_dn_get_linearized(search_res
->msgs
[i
]->dn
)));
1817 return WERR_DS_DRA_INTERNAL_ERROR
;
1821 getnc_state
->final_hwm
.tmp_highest_usn
= getnc_state
->max_usn
;
1822 getnc_state
->final_hwm
.reserved_usn
= 0;
1823 getnc_state
->final_hwm
.highest_usn
= getnc_state
->max_usn
;
1825 talloc_free(search_res
);
1826 talloc_free(changes
);
1829 if (req10
->uptodateness_vector
) {
1830 /* make sure its sorted */
1831 TYPESAFE_QSORT(req10
->uptodateness_vector
->cursors
,
1832 req10
->uptodateness_vector
->count
,
1833 drsuapi_DsReplicaCursor_compare
);
1836 /* Prefix mapping */
1837 schema
= dsdb_get_schema(sam_ctx
, mem_ctx
);
1839 DEBUG(0,("No schema in sam_ctx\n"));
1840 return WERR_DS_DRA_INTERNAL_ERROR
;
1843 r
->out
.ctr
->ctr6
.naming_context
= talloc(mem_ctx
, struct drsuapi_DsReplicaObjectIdentifier
);
1844 *r
->out
.ctr
->ctr6
.naming_context
= *ncRoot
;
1846 if (dsdb_find_guid_by_dn(sam_ctx
, getnc_state
->ncRoot_dn
,
1847 &r
->out
.ctr
->ctr6
.naming_context
->guid
) != LDB_SUCCESS
) {
1848 DEBUG(0,(__location__
": Failed to find GUID of ncRoot_dn %s\n",
1849 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
)));
1850 return WERR_DS_DRA_INTERNAL_ERROR
;
1853 /* find the SID if there is one */
1854 dsdb_find_sid_by_dn(sam_ctx
, getnc_state
->ncRoot_dn
, &r
->out
.ctr
->ctr6
.naming_context
->sid
);
1856 dsdb_get_oid_mappings_drsuapi(schema
, true, mem_ctx
, &ctr
);
1857 r
->out
.ctr
->ctr6
.mapping_ctr
= *ctr
;
1859 r
->out
.ctr
->ctr6
.source_dsa_guid
= *(samdb_ntds_objectGUID(sam_ctx
));
1860 r
->out
.ctr
->ctr6
.source_dsa_invocation_id
= *(samdb_ntds_invocation_id(sam_ctx
));
1862 r
->out
.ctr
->ctr6
.old_highwatermark
= req10
->highwatermark
;
1863 r
->out
.ctr
->ctr6
.new_highwatermark
= req10
->highwatermark
;
1865 r
->out
.ctr
->ctr6
.first_object
= NULL
;
1866 currentObject
= &r
->out
.ctr
->ctr6
.first_object
;
1868 /* use this to force single objects at a time, which is useful
1869 * for working out what object is giving problems
1871 max_objects
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max object sync", 1000);
1872 if (req10
->max_object_count
< max_objects
) {
1873 max_objects
= req10
->max_object_count
;
1876 * TODO: work out how the maximum should be calculated
1878 max_links
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max link sync", 1500);
1881 * Maximum time that we can spend in a getncchanges
1882 * in order to avoid timeout of the other part.
1883 * 10 seconds by default.
1885 max_wait
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max work time", 10);
1886 for (i
=getnc_state
->num_processed
;
1887 i
<getnc_state
->num_records
&&
1889 (r
->out
.ctr
->ctr6
.object_count
< max_objects
)
1890 && !max_wait_reached
;
1893 struct drsuapi_DsReplicaObjectListItemEx
*obj
;
1894 struct ldb_message
*msg
;
1895 static const char * const msg_attrs
[] = {
1897 "nTSecurityDescriptor",
1899 "replPropertyMetaData",
1900 DSDB_SECRET_ATTRIBUTES
,
1902 struct ldb_result
*msg_res
;
1903 struct ldb_dn
*msg_dn
;
1905 obj
= talloc_zero(mem_ctx
, struct drsuapi_DsReplicaObjectListItemEx
);
1906 W_ERROR_HAVE_NO_MEMORY(obj
);
1908 msg_dn
= ldb_dn_new_fmt(obj
, sam_ctx
, "<GUID=%s>", GUID_string(obj
, &getnc_state
->guids
[i
]));
1909 W_ERROR_HAVE_NO_MEMORY(msg_dn
);
1912 /* by re-searching here we avoid having a lot of full
1913 * records in memory between calls to getncchanges
1915 ret
= drsuapi_search_with_extended_dn(sam_ctx
, obj
, &msg_res
,
1917 LDB_SCOPE_BASE
, msg_attrs
, NULL
);
1918 if (ret
!= LDB_SUCCESS
) {
1919 if (ret
!= LDB_ERR_NO_SUCH_OBJECT
) {
1920 DEBUG(1,("getncchanges: failed to fetch DN %s - %s\n",
1921 ldb_dn_get_extended_linearized(obj
, msg_dn
, 1), ldb_errstring(sam_ctx
)));
1927 msg
= msg_res
->msgs
[0];
1929 max_wait_reached
= (time(NULL
) - start
> max_wait
);
1931 werr
= get_nc_changes_build_object(obj
, msg
,
1932 sam_ctx
, getnc_state
->ncRoot_dn
,
1933 getnc_state
->is_schema_nc
,
1934 schema
, &session_key
, getnc_state
->min_usn
,
1935 req10
->replica_flags
,
1936 req10
->partial_attribute_set
,
1937 req10
->uptodateness_vector
,
1940 if (!W_ERROR_IS_OK(werr
)) {
1944 werr
= get_nc_changes_add_links(sam_ctx
, getnc_state
,
1945 getnc_state
->ncRoot_dn
,
1946 schema
, getnc_state
->min_usn
,
1947 req10
->replica_flags
,
1949 &getnc_state
->la_list
,
1950 &getnc_state
->la_count
,
1951 req10
->uptodateness_vector
);
1952 if (!W_ERROR_IS_OK(werr
)) {
1956 uSN
= ldb_msg_find_attr_as_int(msg
, "uSNChanged", -1);
1957 if (uSN
> getnc_state
->max_usn
) {
1959 * Only report the max_usn we had at the start
1960 * of the replication cycle.
1962 * If this object has changed lately we better
1963 * let the destination dsa refetch the change.
1964 * This is better than the risk of loosing some
1965 * objects or linked attributes.
1969 if (uSN
> r
->out
.ctr
->ctr6
.new_highwatermark
.tmp_highest_usn
) {
1970 r
->out
.ctr
->ctr6
.new_highwatermark
.tmp_highest_usn
= uSN
;
1971 r
->out
.ctr
->ctr6
.new_highwatermark
.reserved_usn
= 0;
1974 if (obj
->meta_data_ctr
== NULL
) {
1975 DEBUG(8,(__location__
": getncchanges skipping send of object %s\n",
1976 ldb_dn_get_linearized(msg
->dn
)));
1977 /* no attributes to send */
1982 r
->out
.ctr
->ctr6
.object_count
++;
1984 *currentObject
= obj
;
1985 currentObject
= &obj
->next_object
;
1987 DEBUG(8,(__location__
": replicating object %s\n", ldb_dn_get_linearized(msg
->dn
)));
1989 talloc_free(getnc_state
->last_dn
);
1990 getnc_state
->last_dn
= talloc_move(getnc_state
, &msg
->dn
);
1992 talloc_free(msg_res
);
1993 talloc_free(msg_dn
);
1996 getnc_state
->num_processed
= i
;
1998 r
->out
.ctr
->ctr6
.nc_object_count
= getnc_state
->num_records
;
2000 /* the client can us to call UpdateRefs on its behalf to
2001 re-establish monitoring of the NC */
2002 if ((req10
->replica_flags
& (DRSUAPI_DRS_ADD_REF
| DRSUAPI_DRS_REF_GCSPN
)) &&
2003 !GUID_all_zero(&req10
->destination_dsa_guid
)) {
2004 struct drsuapi_DsReplicaUpdateRefsRequest1 ureq
;
2005 DEBUG(3,("UpdateRefs on getncchanges for %s\n",
2006 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
)));
2007 ureq
.naming_context
= ncRoot
;
2008 ureq
.dest_dsa_dns_name
= samdb_ntds_msdcs_dns_name(b_state
->sam_ctx
, mem_ctx
,
2009 &req10
->destination_dsa_guid
);
2010 if (!ureq
.dest_dsa_dns_name
) {
2013 ureq
.dest_dsa_guid
= req10
->destination_dsa_guid
;
2014 ureq
.options
= DRSUAPI_DRS_ADD_REF
|
2015 DRSUAPI_DRS_ASYNC_OP
|
2016 DRSUAPI_DRS_GETCHG_CHECK
;
2018 /* we also need to pass through the
2019 DRSUAPI_DRS_REF_GCSPN bit so that repsTo gets flagged
2020 to send notifies using the GC SPN */
2021 ureq
.options
|= (req10
->replica_flags
& DRSUAPI_DRS_REF_GCSPN
);
2023 werr
= drsuapi_UpdateRefs(b_state
, mem_ctx
, &ureq
);
2024 if (!W_ERROR_IS_OK(werr
)) {
2025 DEBUG(0,(__location__
": Failed UpdateRefs in DsGetNCChanges - %s\n",
2032 * This is just a guess, how to calculate the
2033 * number of linked attributes to send, we need to
2034 * find out how to do this right.
2036 if (r
->out
.ctr
->ctr6
.object_count
>= max_links
) {
2039 max_links
-= r
->out
.ctr
->ctr6
.object_count
;
2042 link_total
= getnc_state
->la_count
;
2044 if (i
< getnc_state
->num_records
) {
2045 r
->out
.ctr
->ctr6
.more_data
= true;
2047 /* sort the whole array the first time */
2048 if (!getnc_state
->la_sorted
) {
2049 LDB_TYPESAFE_QSORT(getnc_state
->la_list
, getnc_state
->la_count
,
2050 sam_ctx
, linked_attribute_compare
);
2051 getnc_state
->la_sorted
= true;
2054 link_count
= getnc_state
->la_count
- getnc_state
->la_idx
;
2055 link_count
= MIN(max_links
, link_count
);
2057 r
->out
.ctr
->ctr6
.linked_attributes_count
= link_count
;
2058 r
->out
.ctr
->ctr6
.linked_attributes
= getnc_state
->la_list
+ getnc_state
->la_idx
;
2060 getnc_state
->la_idx
+= link_count
;
2061 link_given
= getnc_state
->la_idx
;
2063 if (getnc_state
->la_idx
< getnc_state
->la_count
) {
2064 r
->out
.ctr
->ctr6
.more_data
= true;
2068 if (!r
->out
.ctr
->ctr6
.more_data
) {
2069 talloc_steal(mem_ctx
, getnc_state
->la_list
);
2071 r
->out
.ctr
->ctr6
.new_highwatermark
= getnc_state
->final_hwm
;
2072 r
->out
.ctr
->ctr6
.uptodateness_vector
= talloc_move(mem_ctx
,
2073 &getnc_state
->final_udv
);
2075 talloc_free(getnc_state
);
2076 b_state
->getncchanges_state
= NULL
;
2078 ret
= drsuapi_DsReplicaHighWaterMark_cmp(&r
->out
.ctr
->ctr6
.old_highwatermark
,
2079 &r
->out
.ctr
->ctr6
.new_highwatermark
);
2082 * We need to make sure that we never return the
2083 * same highwatermark within the same replication
2084 * cycle more than once. Otherwise we cannot detect
2085 * when the client uses an unexptected highwatermark.
2087 * This is a HACK which is needed because our
2088 * object ordering is wrong and set tmp_highest_usn
2089 * to a value that is higher than what we already
2090 * sent to the client (destination dsa).
2092 r
->out
.ctr
->ctr6
.new_highwatermark
.reserved_usn
+= 1;
2095 getnc_state
->last_hwm
= r
->out
.ctr
->ctr6
.new_highwatermark
;
2098 if (req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
2099 r
->out
.ctr
->ctr6
.uptodateness_vector
= NULL
;
2100 r
->out
.ctr
->ctr6
.nc_object_count
= 0;
2101 ZERO_STRUCT(r
->out
.ctr
->ctr6
.new_highwatermark
);
2104 DEBUG(r
->out
.ctr
->ctr6
.more_data
?4:2,
2105 ("DsGetNCChanges with uSNChanged >= %llu flags 0x%08x on %s gave %u objects (done %u/%u) %u links (done %u/%u (as %s))\n",
2106 (unsigned long long)(req10
->highwatermark
.highest_usn
+1),
2107 req10
->replica_flags
, drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
),
2108 r
->out
.ctr
->ctr6
.object_count
,
2109 i
, r
->out
.ctr
->ctr6
.more_data
?getnc_state
->num_records
:i
,
2110 r
->out
.ctr
->ctr6
.linked_attributes_count
,
2111 link_given
, link_total
,
2112 dom_sid_string(mem_ctx
, user_sid
)));
2115 if (!r
->out
.ctr
->ctr6
.more_data
&& req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
2116 NDR_PRINT_FUNCTION_DEBUG(drsuapi_DsGetNCChanges
, NDR_BOTH
, r
);