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 on %s to DRS object - %s\n",
357 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
),
361 /* if DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING is set
362 * check if attribute is secret and send a null value
364 if (replica_flags
& DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
) {
365 drsuapi_process_secret_attribute(&obj
->object
.attribute_ctr
.attributes
[i
],
366 &obj
->meta_data_ctr
->meta_data
[i
]);
368 /* some attributes needs to be encrypted
370 werr
= drsuapi_encrypt_attribute(obj
, session_key
, rid
,
371 &obj
->object
.attribute_ctr
.attributes
[i
]);
372 if (!W_ERROR_IS_OK(werr
)) {
373 DEBUG(0,("Unable to encrypt %s on %s in DRS object - %s\n",
374 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
),
385 add one linked attribute from an object to the list of linked
386 attributes in a getncchanges request
388 static WERROR
get_nc_changes_add_la(TALLOC_CTX
*mem_ctx
,
389 struct ldb_context
*sam_ctx
,
390 const struct dsdb_schema
*schema
,
391 const struct dsdb_attribute
*sa
,
392 struct ldb_message
*msg
,
393 struct dsdb_dn
*dsdb_dn
,
394 struct drsuapi_DsReplicaLinkedAttribute
**la_list
,
397 struct drsuapi_DsReplicaLinkedAttribute
*la
;
402 (*la_list
) = talloc_realloc(mem_ctx
, *la_list
, struct drsuapi_DsReplicaLinkedAttribute
, (*la_count
)+1);
403 W_ERROR_HAVE_NO_MEMORY(*la_list
);
405 la
= &(*la_list
)[*la_count
];
407 la
->identifier
= get_object_identifier(*la_list
, msg
);
408 W_ERROR_HAVE_NO_MEMORY(la
->identifier
);
410 active
= (dsdb_dn_rmd_flags(dsdb_dn
->dn
) & DSDB_RMD_FLAG_DELETED
) == 0;
413 /* We have to check that the inactive link still point to an existing object */
419 v
= ldb_msg_find_attr_as_string(msg
, "isDeleted", "FALSE");
420 if (strncmp(v
, "TRUE", 4) == 0) {
422 * Note: we skip the transmition of the deleted link even if the other part used to
423 * know about it because when we transmit the deletion of the object, the link will
424 * be deleted too due to deletion of object where link points and Windows do so.
426 if (dsdb_functional_level(sam_ctx
) >= DS_DOMAIN_FUNCTION_2008_R2
) {
427 v
= ldb_msg_find_attr_as_string(msg
, "isRecycled", "FALSE");
429 * On Windows 2008R2 isRecycled is always present even if FL or DL are < FL 2K8R2
430 * if it join an existing domain with deleted objets, it firsts impose to have a
431 * schema with the is-Recycled object and for all deleted objects it adds the isRecycled
432 * either during initial replication or after the getNCChanges.
433 * Behavior of samba has been changed to always have this attribute if it's present in the schema.
435 * So if FL <2K8R2 isRecycled might be here or not but we don't care, it's meaning less.
436 * If FL >=2K8R2 we are sure that this attribute will be here.
437 * For this kind of forest level we do not return the link if the object is recycled
438 * (isRecycled = true).
440 if (strncmp(v
, "TRUE", 4) == 0) {
441 DEBUG(2, (" object %s is recycled, not returning linked attribute !\n",
442 ldb_dn_get_linearized(msg
->dn
)));
449 status
= dsdb_get_extended_dn_guid(dsdb_dn
->dn
, &guid
, "GUID");
450 if (!NT_STATUS_IS_OK(status
)) {
451 DEBUG(0,(__location__
" Unable to extract GUID in linked attribute '%s' in '%s'\n",
452 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
453 return ntstatus_to_werror(status
);
455 ret
= dsdb_find_dn_by_guid(sam_ctx
, mem_ctx
, &guid
, 0, &tdn
);
456 if (ret
== LDB_ERR_NO_SUCH_OBJECT
) {
457 DEBUG(2, (" Search of guid %s returned 0 objects, skipping it !\n",
458 GUID_string(mem_ctx
, &guid
)));
460 } else if (ret
!= LDB_SUCCESS
) {
461 DEBUG(0, (__location__
" Search of guid %s failed with error code %d\n",
462 GUID_string(mem_ctx
, &guid
),
467 la
->attid
= sa
->attributeID_id
;
468 la
->flags
= active
?DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
:0;
470 status
= dsdb_get_extended_dn_uint32(dsdb_dn
->dn
, &la
->meta_data
.version
, "RMD_VERSION");
471 if (!NT_STATUS_IS_OK(status
)) {
472 DEBUG(0,(__location__
" No RMD_VERSION in linked attribute '%s' in '%s'\n",
473 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
474 return ntstatus_to_werror(status
);
476 status
= dsdb_get_extended_dn_nttime(dsdb_dn
->dn
, &la
->meta_data
.originating_change_time
, "RMD_CHANGETIME");
477 if (!NT_STATUS_IS_OK(status
)) {
478 DEBUG(0,(__location__
" No RMD_CHANGETIME in linked attribute '%s' in '%s'\n",
479 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
480 return ntstatus_to_werror(status
);
482 status
= dsdb_get_extended_dn_guid(dsdb_dn
->dn
, &la
->meta_data
.originating_invocation_id
, "RMD_INVOCID");
483 if (!NT_STATUS_IS_OK(status
)) {
484 DEBUG(0,(__location__
" No RMD_INVOCID in linked attribute '%s' in '%s'\n",
485 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
486 return ntstatus_to_werror(status
);
488 status
= dsdb_get_extended_dn_uint64(dsdb_dn
->dn
, &la
->meta_data
.originating_usn
, "RMD_ORIGINATING_USN");
489 if (!NT_STATUS_IS_OK(status
)) {
490 DEBUG(0,(__location__
" No RMD_ORIGINATING_USN in linked attribute '%s' in '%s'\n",
491 sa
->lDAPDisplayName
, ldb_dn_get_linearized(msg
->dn
)));
492 return ntstatus_to_werror(status
);
495 status
= dsdb_get_extended_dn_nttime(dsdb_dn
->dn
, &la
->originating_add_time
, "RMD_ADDTIME");
496 if (!NT_STATUS_IS_OK(status
)) {
497 /* this is possible for upgraded links */
498 la
->originating_add_time
= la
->meta_data
.originating_change_time
;
501 werr
= dsdb_dn_la_to_blob(sam_ctx
, sa
, schema
, *la_list
, dsdb_dn
, &la
->value
.blob
);
502 W_ERROR_NOT_OK_RETURN(werr
);
510 add linked attributes from an object to the list of linked
511 attributes in a getncchanges request
513 static WERROR
get_nc_changes_add_links(struct ldb_context
*sam_ctx
,
515 struct ldb_dn
*ncRoot_dn
,
516 struct dsdb_schema
*schema
,
517 uint64_t highest_usn
,
518 uint32_t replica_flags
,
519 struct ldb_message
*msg
,
520 struct drsuapi_DsReplicaLinkedAttribute
**la_list
,
522 struct drsuapi_DsReplicaCursorCtrEx
*uptodateness_vector
)
525 TALLOC_CTX
*tmp_ctx
= talloc_new(mem_ctx
);
526 uint64_t uSNChanged
= ldb_msg_find_attr_as_int(msg
, "uSNChanged", -1);
528 for (i
=0; i
<msg
->num_elements
; i
++) {
529 struct ldb_message_element
*el
= &msg
->elements
[i
];
530 const struct dsdb_attribute
*sa
;
533 sa
= dsdb_attribute_by_lDAPDisplayName(schema
, el
->name
);
535 if (!sa
|| sa
->linkID
== 0 || (sa
->linkID
& 1)) {
536 /* we only want forward links */
540 if (el
->num_values
&& !dsdb_dn_is_upgraded_link_val(&el
->values
[0])) {
541 /* its an old style link, it will have been
542 * sent in the main replication data */
546 for (j
=0; j
<el
->num_values
; j
++) {
547 struct dsdb_dn
*dsdb_dn
;
552 dsdb_dn
= dsdb_dn_parse(tmp_ctx
, sam_ctx
, &el
->values
[j
], sa
->syntax
->ldap_oid
);
553 if (dsdb_dn
== NULL
) {
554 DEBUG(1,(__location__
": Failed to parse DN for %s in %s\n",
555 el
->name
, ldb_dn_get_linearized(msg
->dn
)));
556 talloc_free(tmp_ctx
);
557 return WERR_DS_DRA_INTERNAL_ERROR
;
560 status
= dsdb_get_extended_dn_uint64(dsdb_dn
->dn
, &local_usn
, "RMD_LOCAL_USN");
561 if (!NT_STATUS_IS_OK(status
)) {
562 /* this can happen for attributes
563 given to us with old style meta
568 if (local_usn
> uSNChanged
) {
569 DEBUG(1,(__location__
": uSNChanged less than RMD_LOCAL_USN for %s on %s\n",
570 el
->name
, ldb_dn_get_linearized(msg
->dn
)));
571 talloc_free(tmp_ctx
);
572 return WERR_DS_DRA_INTERNAL_ERROR
;
575 if (local_usn
< highest_usn
) {
579 werr
= get_nc_changes_add_la(mem_ctx
, sam_ctx
, schema
, sa
, msg
,
580 dsdb_dn
, la_list
, la_count
);
581 if (!W_ERROR_IS_OK(werr
)) {
582 talloc_free(tmp_ctx
);
588 talloc_free(tmp_ctx
);
593 fill in the cursors return based on the replUpToDateVector for the ncRoot_dn
595 static WERROR
get_nc_changes_udv(struct ldb_context
*sam_ctx
,
596 struct ldb_dn
*ncRoot_dn
,
597 struct drsuapi_DsReplicaCursor2CtrEx
*udv
)
605 ret
= dsdb_load_udv_v2(sam_ctx
, ncRoot_dn
, udv
, &udv
->cursors
, &udv
->count
);
606 if (ret
!= LDB_SUCCESS
) {
607 DEBUG(0,(__location__
": Failed to load UDV for %s - %s\n",
608 ldb_dn_get_linearized(ncRoot_dn
), ldb_errstring(sam_ctx
)));
609 return WERR_DS_DRA_INTERNAL_ERROR
;
616 /* comparison function for linked attributes - see CompareLinks() in
617 * MS-DRSR section 4.1.10.5.17 */
618 static int linked_attribute_compare(const struct drsuapi_DsReplicaLinkedAttribute
*la1
,
619 const struct drsuapi_DsReplicaLinkedAttribute
*la2
,
620 struct ldb_context
*sam_ctx
)
625 const struct dsdb_schema
*schema
;
626 const struct dsdb_attribute
*schema_attrib
;
627 struct dsdb_dn
*dn1
, *dn2
;
628 struct GUID guid1
, guid2
;
631 c
= GUID_compare(&la1
->identifier
->guid
,
632 &la2
->identifier
->guid
);
633 if (c
!= 0) return c
;
635 if (la1
->attid
!= la2
->attid
) {
636 return la1
->attid
< la2
->attid
? -1:1;
639 if ((la1
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
) !=
640 (la2
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
)) {
641 return (la1
->flags
& DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
)? 1:-1;
644 /* we need to get the target GUIDs to compare */
645 tmp_ctx
= talloc_new(sam_ctx
);
647 schema
= dsdb_get_schema(sam_ctx
, tmp_ctx
);
648 schema_attrib
= dsdb_attribute_by_attributeID_id(schema
, la1
->attid
);
650 werr
= dsdb_dn_la_from_blob(sam_ctx
, schema_attrib
, schema
, tmp_ctx
, la1
->value
.blob
, &dn1
);
651 if (!W_ERROR_IS_OK(werr
)) {
652 DEBUG(0,(__location__
": Bad la1 blob in sort\n"));
653 talloc_free(tmp_ctx
);
657 werr
= dsdb_dn_la_from_blob(sam_ctx
, schema_attrib
, schema
, tmp_ctx
, la2
->value
.blob
, &dn2
);
658 if (!W_ERROR_IS_OK(werr
)) {
659 DEBUG(0,(__location__
": Bad la2 blob in sort\n"));
660 talloc_free(tmp_ctx
);
664 status
= dsdb_get_extended_dn_guid(dn1
->dn
, &guid1
, "GUID");
665 if (!NT_STATUS_IS_OK(status
)) {
666 DEBUG(0,(__location__
": Bad la1 guid in sort\n"));
667 talloc_free(tmp_ctx
);
670 status
= dsdb_get_extended_dn_guid(dn2
->dn
, &guid2
, "GUID");
671 if (!NT_STATUS_IS_OK(status
)) {
672 DEBUG(0,(__location__
": Bad la2 guid in sort\n"));
673 talloc_free(tmp_ctx
);
677 talloc_free(tmp_ctx
);
679 return GUID_compare(&guid1
, &guid2
);
682 struct drsuapi_changed_objects
{
689 sort the objects we send by tree order
691 static int site_res_cmp_anc_order(struct drsuapi_changed_objects
*m1
,
692 struct drsuapi_changed_objects
*m2
,
693 struct drsuapi_getncchanges_state
*getnc_state
)
695 return ldb_dn_compare(m2
->dn
, m1
->dn
);
699 sort the objects we send first by uSNChanged
701 static int site_res_cmp_usn_order(struct drsuapi_changed_objects
*m1
,
702 struct drsuapi_changed_objects
*m2
,
703 struct drsuapi_getncchanges_state
*getnc_state
)
707 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
, m1
->dn
);
712 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
, m2
->dn
);
717 if (m1
->usn
== m2
->usn
) {
718 return ldb_dn_compare(m2
->dn
, m1
->dn
);
721 if (m1
->usn
< m2
->usn
) {
730 handle a DRSUAPI_EXOP_FSMO_RID_ALLOC call
732 static WERROR
getncchanges_rid_alloc(struct drsuapi_bind_state
*b_state
,
734 struct drsuapi_DsGetNCChangesRequest10
*req10
,
735 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
737 struct ldb_dn
*rid_manager_dn
, *req_dn
;
739 struct ldb_context
*ldb
= b_state
->sam_ctx
;
740 struct ldb_result
*ext_res
;
741 struct dsdb_fsmo_extended_op
*exop
;
746 - verify that the DN being asked for is the RID Manager DN
747 - verify that we are the RID Manager
750 /* work out who is the RID Manager */
751 ret
= samdb_rid_manager_dn(ldb
, mem_ctx
, &rid_manager_dn
);
752 if (ret
!= LDB_SUCCESS
) {
753 DEBUG(0, (__location__
": Failed to find RID Manager object - %s\n", ldb_errstring(ldb
)));
754 return WERR_DS_DRA_INTERNAL_ERROR
;
757 req_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, ldb
, req10
->naming_context
);
758 if (!ldb_dn_validate(req_dn
) ||
759 ldb_dn_compare(req_dn
, rid_manager_dn
) != 0) {
760 /* that isn't the RID Manager DN */
761 DEBUG(0,(__location__
": RID Alloc request for wrong DN %s\n",
762 drs_ObjectIdentifier_to_string(mem_ctx
, req10
->naming_context
)));
763 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_MISMATCH
;
767 /* find the DN of the RID Manager */
768 ret
= samdb_reference_dn_is_our_ntdsa(ldb
, rid_manager_dn
, "fSMORoleOwner", &is_us
);
769 if (ret
!= LDB_SUCCESS
) {
770 DEBUG(0,("Failed to find fSMORoleOwner in RID Manager object\n"));
771 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
772 return WERR_DS_DRA_INTERNAL_ERROR
;
776 /* we're not the RID Manager - go away */
777 DEBUG(0,(__location__
": RID Alloc request when not RID Manager\n"));
778 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
782 exop
= talloc(mem_ctx
, struct dsdb_fsmo_extended_op
);
783 W_ERROR_HAVE_NO_MEMORY(exop
);
785 exop
->fsmo_info
= req10
->fsmo_info
;
786 exop
->destination_dsa_guid
= req10
->destination_dsa_guid
;
788 ret
= ldb_transaction_start(ldb
);
789 if (ret
!= LDB_SUCCESS
) {
790 DEBUG(0,(__location__
": Failed transaction start - %s\n",
791 ldb_errstring(ldb
)));
792 return WERR_DS_DRA_INTERNAL_ERROR
;
796 * FIXME (kim): this is a temp hack to return just few object,
797 * but not the whole domain NC.
798 * We should remove this hack and implement a 'scope'
799 * building function to return just the set of object
800 * documented for DRSUAPI_EXOP_FSMO_RID_ALLOC extended_op
802 ldb_sequence_number(ldb
, LDB_SEQ_HIGHEST_SEQ
, &req10
->highwatermark
.highest_usn
);
804 ret
= ldb_extended(ldb
, DSDB_EXTENDED_ALLOCATE_RID_POOL
, exop
, &ext_res
);
805 if (ret
!= LDB_SUCCESS
) {
806 DEBUG(0,(__location__
": Failed extended allocation RID pool operation - %s\n",
807 ldb_errstring(ldb
)));
808 ldb_transaction_cancel(ldb
);
809 return WERR_DS_DRA_INTERNAL_ERROR
;
812 ret
= ldb_transaction_commit(ldb
);
813 if (ret
!= LDB_SUCCESS
) {
814 DEBUG(0,(__location__
": Failed transaction commit - %s\n",
815 ldb_errstring(ldb
)));
816 return WERR_DS_DRA_INTERNAL_ERROR
;
819 talloc_free(ext_res
);
821 DEBUG(2,("Allocated RID pool for server %s\n",
822 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
)));
824 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
830 return an array of SIDs from a ldb_message given an attribute name
831 assumes the SIDs are in extended DN format
833 static WERROR
samdb_result_sid_array_dn(struct ldb_context
*sam_ctx
,
834 struct ldb_message
*msg
,
837 const struct dom_sid
***sids
)
839 struct ldb_message_element
*el
;
842 el
= ldb_msg_find_element(msg
, attr
);
848 (*sids
) = talloc_array(mem_ctx
, const struct dom_sid
*, el
->num_values
+ 1);
849 W_ERROR_HAVE_NO_MEMORY(*sids
);
851 for (i
=0; i
<el
->num_values
; i
++) {
852 struct ldb_dn
*dn
= ldb_dn_from_ldb_val(mem_ctx
, sam_ctx
, &el
->values
[i
]);
856 sid
= talloc(*sids
, struct dom_sid
);
857 W_ERROR_HAVE_NO_MEMORY(sid
);
858 status
= dsdb_get_extended_dn_sid(dn
, sid
, "SID");
859 if (!NT_STATUS_IS_OK(status
)) {
860 return WERR_INTERNAL_DB_CORRUPTION
;
871 return an array of SIDs from a ldb_message given an attribute name
872 assumes the SIDs are in NDR form
874 static WERROR
samdb_result_sid_array_ndr(struct ldb_context
*sam_ctx
,
875 struct ldb_message
*msg
,
878 const struct dom_sid
***sids
)
880 struct ldb_message_element
*el
;
883 el
= ldb_msg_find_element(msg
, attr
);
889 (*sids
) = talloc_array(mem_ctx
, const struct dom_sid
*, el
->num_values
+ 1);
890 W_ERROR_HAVE_NO_MEMORY(*sids
);
892 for (i
=0; i
<el
->num_values
; i
++) {
893 enum ndr_err_code ndr_err
;
896 sid
= talloc(*sids
, struct dom_sid
);
897 W_ERROR_HAVE_NO_MEMORY(sid
);
899 ndr_err
= ndr_pull_struct_blob(&el
->values
[i
], sid
, sid
,
900 (ndr_pull_flags_fn_t
)ndr_pull_dom_sid
);
901 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
902 return WERR_INTERNAL_DB_CORRUPTION
;
912 see if any SIDs in list1 are in list2
914 static bool sid_list_match(const struct dom_sid
**list1
, const struct dom_sid
**list2
)
917 /* do we ever have enough SIDs here to worry about O(n^2) ? */
918 for (i
=0; list1
[i
]; i
++) {
919 for (j
=0; list2
[j
]; j
++) {
920 if (dom_sid_equal(list1
[i
], list2
[j
])) {
929 handle a DRSUAPI_EXOP_REPL_SECRET call
931 static WERROR
getncchanges_repl_secret(struct drsuapi_bind_state
*b_state
,
933 struct drsuapi_DsGetNCChangesRequest10
*req10
,
934 struct dom_sid
*user_sid
,
935 struct drsuapi_DsGetNCChangesCtr6
*ctr6
,
936 bool has_get_all_changes
)
938 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
= req10
->naming_context
;
939 struct ldb_dn
*obj_dn
, *rodc_dn
, *krbtgt_link_dn
;
941 const char *rodc_attrs
[] = { "msDS-KrbTgtLink", "msDS-NeverRevealGroup", "msDS-RevealOnDemandGroup", NULL
};
942 const char *obj_attrs
[] = { "tokenGroups", "objectSid", "UserAccountControl", "msDS-KrbTgtLinkBL", NULL
};
943 struct ldb_result
*rodc_res
, *obj_res
;
944 const struct dom_sid
**never_reveal_sids
, **reveal_sids
, **token_sids
;
947 DEBUG(3,(__location__
": DRSUAPI_EXOP_REPL_SECRET extended op on %s\n",
948 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
951 * we need to work out if we will allow this DC to
952 * replicate the secrets for this object
954 * see 4.1.10.5.14 GetRevealSecretsPolicyForUser for details
958 if (b_state
->sam_ctx_system
== NULL
) {
959 /* this operation needs system level access */
960 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_ACCESS_DENIED
;
961 return WERR_DS_DRA_SOURCE_DISABLED
;
965 * In MS-DRSR.pdf 5.99 IsGetNCChangesPermissionGranted
967 * The pseudo code indicate
968 * revealsecrets = true
969 * if IsRevealSecretRequest(msgIn) then
970 * if AccessCheckCAR(ncRoot, Ds-Replication-Get-Changes-All) = false
972 * if (msgIn.ulExtendedOp = EXOP_REPL_SECRETS) then
973 * <... check if this account is ok to be replicated on this DC ...>
974 * <... and if not reveal secrets = no ...>
976 * reveal secrets = false
981 * Which basically means that if you have GET_ALL_CHANGES rights (~== RWDC)
982 * then you can do EXOP_REPL_SECRETS
984 if (has_get_all_changes
) {
988 obj_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, b_state
->sam_ctx_system
, ncRoot
);
989 if (!ldb_dn_validate(obj_dn
)) goto failed
;
991 rodc_dn
= ldb_dn_new_fmt(mem_ctx
, b_state
->sam_ctx_system
, "<SID=%s>",
992 dom_sid_string(mem_ctx
, user_sid
));
993 if (!ldb_dn_validate(rodc_dn
)) goto failed
;
995 /* do the two searches we need */
996 ret
= dsdb_search_dn(b_state
->sam_ctx_system
, mem_ctx
, &rodc_res
, rodc_dn
, rodc_attrs
,
997 DSDB_SEARCH_SHOW_EXTENDED_DN
);
998 if (ret
!= LDB_SUCCESS
|| rodc_res
->count
!= 1) goto failed
;
1000 ret
= dsdb_search_dn(b_state
->sam_ctx_system
, mem_ctx
, &obj_res
, obj_dn
, obj_attrs
, 0);
1001 if (ret
!= LDB_SUCCESS
|| obj_res
->count
!= 1) goto failed
;
1003 /* if the object SID is equal to the user_sid, allow */
1004 if (dom_sid_equal(user_sid
,
1005 samdb_result_dom_sid(mem_ctx
, obj_res
->msgs
[0], "objectSid"))) {
1009 /* an RODC is allowed to get its own krbtgt account secrets */
1010 krbtgt_link_dn
= samdb_result_dn(b_state
->sam_ctx_system
, mem_ctx
,
1011 rodc_res
->msgs
[0], "msDS-KrbTgtLink", NULL
);
1012 if (krbtgt_link_dn
!= NULL
&&
1013 ldb_dn_compare(obj_dn
, krbtgt_link_dn
) == 0) {
1017 /* but it isn't allowed to get anyone elses krbtgt secrets */
1018 if (samdb_result_dn(b_state
->sam_ctx_system
, mem_ctx
,
1019 obj_res
->msgs
[0], "msDS-KrbTgtLinkBL", NULL
)) {
1023 if (ldb_msg_find_attr_as_uint(obj_res
->msgs
[0],
1024 "userAccountControl", 0) &
1025 UF_INTERDOMAIN_TRUST_ACCOUNT
) {
1029 werr
= samdb_result_sid_array_dn(b_state
->sam_ctx_system
, rodc_res
->msgs
[0],
1030 mem_ctx
, "msDS-NeverRevealGroup", &never_reveal_sids
);
1031 if (!W_ERROR_IS_OK(werr
)) {
1035 werr
= samdb_result_sid_array_dn(b_state
->sam_ctx_system
, rodc_res
->msgs
[0],
1036 mem_ctx
, "msDS-RevealOnDemandGroup", &reveal_sids
);
1037 if (!W_ERROR_IS_OK(werr
)) {
1041 werr
= samdb_result_sid_array_ndr(b_state
->sam_ctx_system
, obj_res
->msgs
[0],
1042 mem_ctx
, "tokenGroups", &token_sids
);
1043 if (!W_ERROR_IS_OK(werr
) || token_sids
==NULL
) {
1047 if (never_reveal_sids
&&
1048 sid_list_match(token_sids
, never_reveal_sids
)) {
1053 sid_list_match(token_sids
, reveal_sids
)) {
1059 DEBUG(2,(__location__
": Denied single object with secret replication for %s by RODC %s\n",
1060 ldb_dn_get_linearized(obj_dn
), ldb_dn_get_linearized(rodc_res
->msgs
[0]->dn
)));
1061 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_NONE
;
1062 return WERR_DS_DRA_ACCESS_DENIED
;
1065 DEBUG(2,(__location__
": Allowed single object with secret replication for %s by %s %s\n",
1066 ldb_dn_get_linearized(obj_dn
), has_get_all_changes
?"RWDC":"RODC",
1067 ldb_dn_get_linearized(rodc_res
->msgs
[0]->dn
)));
1068 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1069 req10
->highwatermark
.highest_usn
= 0;
1073 DEBUG(2,(__location__
": Failed single secret replication for %s by RODC %s\n",
1074 ldb_dn_get_linearized(obj_dn
), dom_sid_string(mem_ctx
, user_sid
)));
1075 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_NONE
;
1076 return WERR_DS_DRA_BAD_DN
;
1081 handle a DRSUAPI_EXOP_REPL_OBJ call
1083 static WERROR
getncchanges_repl_obj(struct drsuapi_bind_state
*b_state
,
1084 TALLOC_CTX
*mem_ctx
,
1085 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1086 struct dom_sid
*user_sid
,
1087 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
1089 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
= req10
->naming_context
;
1091 DEBUG(3,(__location__
": DRSUAPI_EXOP_REPL_OBJ extended op on %s\n",
1092 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
1094 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1100 handle DRSUAPI_EXOP_FSMO_REQ_ROLE,
1101 DRSUAPI_EXOP_FSMO_RID_REQ_ROLE,
1102 and DRSUAPI_EXOP_FSMO_REQ_PDC calls
1104 static WERROR
getncchanges_change_master(struct drsuapi_bind_state
*b_state
,
1105 TALLOC_CTX
*mem_ctx
,
1106 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1107 struct drsuapi_DsGetNCChangesCtr6
*ctr6
)
1109 struct ldb_dn
*req_dn
, *ntds_dn
;
1112 struct ldb_context
*ldb
= b_state
->sam_ctx
;
1113 struct ldb_message
*msg
;
1118 - verify that the client dn exists
1119 - verify that we are the current master
1122 req_dn
= drs_ObjectIdentifier_to_dn(mem_ctx
, ldb
, req10
->naming_context
);
1123 if (!ldb_dn_validate(req_dn
)) {
1124 /* that is not a valid dn */
1125 DEBUG(0,(__location__
": FSMO role transfer request for invalid DN %s\n",
1126 drs_ObjectIdentifier_to_string(mem_ctx
, req10
->naming_context
)));
1127 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_MISMATCH
;
1131 /* retrieve the current role owner */
1132 /* find the DN of the RID Manager */
1133 ret
= samdb_reference_dn_is_our_ntdsa(ldb
, req_dn
, "fSMORoleOwner", &is_us
);
1134 if (ret
!= LDB_SUCCESS
) {
1135 DEBUG(0,("Failed to find fSMORoleOwner in RID Manager object\n"));
1136 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
1137 return WERR_DS_DRA_INTERNAL_ERROR
;
1141 /* we're not the RID Manager - go away */
1142 DEBUG(0,(__location__
": RID Alloc request when not RID Manager\n"));
1143 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER
;
1147 /* change the current master */
1148 msg
= ldb_msg_new(ldb
);
1149 W_ERROR_HAVE_NO_MEMORY(msg
);
1150 msg
->dn
= drs_ObjectIdentifier_to_dn(msg
, ldb
, req10
->naming_context
);
1151 W_ERROR_HAVE_NO_MEMORY(msg
->dn
);
1153 /* TODO: make sure ntds_dn is a valid nTDSDSA object */
1154 ret
= dsdb_find_dn_by_guid(ldb
, msg
, &req10
->destination_dsa_guid
, 0, &ntds_dn
);
1155 if (ret
!= LDB_SUCCESS
) {
1156 DEBUG(0, (__location__
": Unable to find NTDS object for guid %s - %s\n",
1157 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
), ldb_errstring(ldb
)));
1159 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_UNKNOWN_CALLER
;
1163 ret
= ldb_msg_add_string(msg
, "fSMORoleOwner", ldb_dn_get_linearized(ntds_dn
));
1166 return WERR_DS_DRA_INTERNAL_ERROR
;
1169 for (i
=0;i
<msg
->num_elements
;i
++) {
1170 msg
->elements
[i
].flags
= LDB_FLAG_MOD_REPLACE
;
1173 ret
= ldb_transaction_start(ldb
);
1174 if (ret
!= LDB_SUCCESS
) {
1175 DEBUG(0,(__location__
": Failed transaction start - %s\n",
1176 ldb_errstring(ldb
)));
1177 return WERR_DS_DRA_INTERNAL_ERROR
;
1180 ret
= ldb_modify(ldb
, msg
);
1181 if (ret
!= LDB_SUCCESS
) {
1182 DEBUG(0,(__location__
": Failed to change current owner - %s\n",
1183 ldb_errstring(ldb
)));
1184 ldb_transaction_cancel(ldb
);
1185 return WERR_DS_DRA_INTERNAL_ERROR
;
1188 ret
= ldb_transaction_commit(ldb
);
1189 if (ret
!= LDB_SUCCESS
) {
1190 DEBUG(0,(__location__
": Failed transaction commit - %s\n",
1191 ldb_errstring(ldb
)));
1192 return WERR_DS_DRA_INTERNAL_ERROR
;
1195 ctr6
->extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1201 see if this getncchanges request includes a request to reveal secret information
1203 static WERROR
dcesrv_drsuapi_is_reveal_secrets_request(struct drsuapi_bind_state
*b_state
,
1204 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1205 bool *is_secret_request
)
1207 enum drsuapi_DsExtendedOperation exop
;
1209 struct dsdb_schema
*schema
;
1211 *is_secret_request
= true;
1213 exop
= req10
->extended_op
;
1216 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1217 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1218 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1219 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1220 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1221 /* FSMO exops can reveal secrets */
1222 *is_secret_request
= true;
1224 case DRSUAPI_EXOP_REPL_SECRET
:
1225 case DRSUAPI_EXOP_REPL_OBJ
:
1226 case DRSUAPI_EXOP_NONE
:
1230 if (req10
->replica_flags
& DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
) {
1231 *is_secret_request
= false;
1235 if (exop
== DRSUAPI_EXOP_REPL_SECRET
||
1236 req10
->partial_attribute_set
== NULL
) {
1237 /* they want secrets */
1238 *is_secret_request
= true;
1242 schema
= dsdb_get_schema(b_state
->sam_ctx
, NULL
);
1244 /* check the attributes they asked for */
1245 for (i
=0; i
<req10
->partial_attribute_set
->num_attids
; i
++) {
1246 const struct dsdb_attribute
*sa
;
1247 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set
->attids
[i
]);
1249 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1251 if (!dsdb_attr_in_rodc_fas(sa
)) {
1252 *is_secret_request
= true;
1257 if (req10
->partial_attribute_set_ex
) {
1258 /* check the extended attributes they asked for */
1259 for (i
=0; i
<req10
->partial_attribute_set_ex
->num_attids
; i
++) {
1260 const struct dsdb_attribute
*sa
;
1261 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set_ex
->attids
[i
]);
1263 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1265 if (!dsdb_attr_in_rodc_fas(sa
)) {
1266 *is_secret_request
= true;
1272 *is_secret_request
= false;
1277 see if this getncchanges request is only for attributes in the GC
1278 partial attribute set
1280 static WERROR
dcesrv_drsuapi_is_gc_pas_request(struct drsuapi_bind_state
*b_state
,
1281 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1282 bool *is_gc_pas_request
)
1284 enum drsuapi_DsExtendedOperation exop
;
1286 struct dsdb_schema
*schema
;
1288 exop
= req10
->extended_op
;
1291 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1292 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1293 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1294 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1295 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1296 case DRSUAPI_EXOP_REPL_SECRET
:
1297 *is_gc_pas_request
= false;
1299 case DRSUAPI_EXOP_REPL_OBJ
:
1300 case DRSUAPI_EXOP_NONE
:
1304 if (req10
->partial_attribute_set
== NULL
) {
1305 /* they want it all */
1306 *is_gc_pas_request
= false;
1310 schema
= dsdb_get_schema(b_state
->sam_ctx
, NULL
);
1312 /* check the attributes they asked for */
1313 for (i
=0; i
<req10
->partial_attribute_set
->num_attids
; i
++) {
1314 const struct dsdb_attribute
*sa
;
1315 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set
->attids
[i
]);
1317 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1319 if (!sa
->isMemberOfPartialAttributeSet
) {
1320 *is_gc_pas_request
= false;
1325 if (req10
->partial_attribute_set_ex
) {
1326 /* check the extended attributes they asked for */
1327 for (i
=0; i
<req10
->partial_attribute_set_ex
->num_attids
; i
++) {
1328 const struct dsdb_attribute
*sa
;
1329 sa
= dsdb_attribute_by_attributeID_id(schema
, req10
->partial_attribute_set_ex
->attids
[i
]);
1331 return WERR_DS_DRA_SCHEMA_MISMATCH
;
1333 if (!sa
->isMemberOfPartialAttributeSet
) {
1334 *is_gc_pas_request
= false;
1340 *is_gc_pas_request
= true;
1346 map from req8 to req10
1348 static struct drsuapi_DsGetNCChangesRequest10
*
1349 getncchanges_map_req8(TALLOC_CTX
*mem_ctx
,
1350 struct drsuapi_DsGetNCChangesRequest8
*req8
)
1352 struct drsuapi_DsGetNCChangesRequest10
*req10
= talloc_zero(mem_ctx
,
1353 struct drsuapi_DsGetNCChangesRequest10
);
1354 if (req10
== NULL
) {
1358 req10
->destination_dsa_guid
= req8
->destination_dsa_guid
;
1359 req10
->source_dsa_invocation_id
= req8
->source_dsa_invocation_id
;
1360 req10
->naming_context
= req8
->naming_context
;
1361 req10
->highwatermark
= req8
->highwatermark
;
1362 req10
->uptodateness_vector
= req8
->uptodateness_vector
;
1363 req10
->replica_flags
= req8
->replica_flags
;
1364 req10
->max_object_count
= req8
->max_object_count
;
1365 req10
->max_ndr_size
= req8
->max_ndr_size
;
1366 req10
->extended_op
= req8
->extended_op
;
1367 req10
->fsmo_info
= req8
->fsmo_info
;
1368 req10
->partial_attribute_set
= req8
->partial_attribute_set
;
1369 req10
->partial_attribute_set_ex
= req8
->partial_attribute_set_ex
;
1370 req10
->mapping_ctr
= req8
->mapping_ctr
;
1377 * Collects object for normal replication cycle.
1379 static WERROR
getncchanges_collect_objects(struct drsuapi_bind_state
*b_state
,
1380 TALLOC_CTX
*mem_ctx
,
1381 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1382 struct ldb_dn
*search_dn
,
1383 const char *extra_filter
,
1384 struct ldb_result
**search_res
)
1387 char* search_filter
;
1388 enum ldb_scope scope
= LDB_SCOPE_SUBTREE
;
1389 //const char *extra_filter;
1390 struct drsuapi_getncchanges_state
*getnc_state
= b_state
->getncchanges_state
;
1391 const char *attrs
[] = { "uSNChanged",
1395 if (req10
->extended_op
== DRSUAPI_EXOP_REPL_OBJ
||
1396 req10
->extended_op
== DRSUAPI_EXOP_REPL_SECRET
) {
1397 scope
= LDB_SCOPE_BASE
;
1400 //extra_filter = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "object filter");
1402 //getnc_state->min_usn = req10->highwatermark.highest_usn;
1404 /* Construct response. */
1405 search_filter
= talloc_asprintf(mem_ctx
,
1406 "(uSNChanged>=%llu)",
1407 (unsigned long long)(getnc_state
->min_usn
+1));
1410 search_filter
= talloc_asprintf(mem_ctx
, "(&%s(%s))", search_filter
, extra_filter
);
1413 if (req10
->replica_flags
& DRSUAPI_DRS_CRITICAL_ONLY
) {
1414 search_filter
= talloc_asprintf(mem_ctx
,
1415 "(&%s(isCriticalSystemObject=TRUE))",
1419 if (req10
->replica_flags
& DRSUAPI_DRS_ASYNC_REP
) {
1420 scope
= LDB_SCOPE_BASE
;
1424 search_dn
= getnc_state
->ncRoot_dn
;
1427 DEBUG(2,(__location__
": getncchanges on %s using filter %s\n",
1428 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
), search_filter
));
1429 ret
= drsuapi_search_with_extended_dn(b_state
->sam_ctx
, getnc_state
, search_res
,
1430 search_dn
, scope
, attrs
,
1432 if (ret
!= LDB_SUCCESS
) {
1433 return WERR_DS_DRA_INTERNAL_ERROR
;
1440 * Collects object for normal replication cycle.
1442 static WERROR
getncchanges_collect_objects_exop(struct drsuapi_bind_state
*b_state
,
1443 TALLOC_CTX
*mem_ctx
,
1444 struct drsuapi_DsGetNCChangesRequest10
*req10
,
1445 struct drsuapi_DsGetNCChangesCtr6
*ctr6
,
1446 struct ldb_dn
*search_dn
,
1447 const char *extra_filter
,
1448 struct ldb_result
**search_res
)
1450 /* we have nothing to do in case of ex-op failure */
1451 if (ctr6
->extended_ret
!= DRSUAPI_EXOP_ERR_SUCCESS
) {
1455 /* TODO: implement extended op specific collection
1456 * of objects. Right now we just normal procedure
1457 * for collecting objects */
1458 return getncchanges_collect_objects(b_state
, mem_ctx
, req10
, search_dn
, extra_filter
, search_res
);
1462 drsuapi_DsGetNCChanges
1464 see MS-DRSR 4.1.10.5.2 for basic logic of this function
1466 WERROR
dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state
*dce_call
, TALLOC_CTX
*mem_ctx
,
1467 struct drsuapi_DsGetNCChanges
*r
)
1469 struct drsuapi_DsReplicaObjectIdentifier
*ncRoot
;
1472 struct dsdb_schema
*schema
;
1473 struct drsuapi_DsReplicaOIDMapping_Ctr
*ctr
;
1474 struct drsuapi_DsReplicaObjectListItemEx
**currentObject
;
1476 DATA_BLOB session_key
;
1478 struct dcesrv_handle
*h
;
1479 struct drsuapi_bind_state
*b_state
;
1480 struct drsuapi_getncchanges_state
*getnc_state
;
1481 struct drsuapi_DsGetNCChangesRequest10
*req10
;
1483 uint32_t max_objects
;
1485 uint32_t link_count
= 0;
1486 uint32_t link_total
= 0;
1487 uint32_t link_given
= 0;
1488 struct ldb_dn
*search_dn
= NULL
;
1489 bool am_rodc
, null_scope
=false;
1490 enum security_user_level security_level
;
1491 struct ldb_context
*sam_ctx
;
1492 struct dom_sid
*user_sid
;
1493 bool is_secret_request
;
1494 bool is_gc_pas_request
;
1495 struct drsuapi_changed_objects
*changes
;
1497 time_t start
= time(NULL
);
1498 bool max_wait_reached
= false;
1499 bool has_get_all_changes
= false;
1500 struct GUID invocation_id
;
1502 DCESRV_PULL_HANDLE_WERR(h
, r
->in
.bind_handle
, DRSUAPI_BIND_HANDLE
);
1505 sam_ctx
= b_state
->sam_ctx_system
?b_state
->sam_ctx_system
:b_state
->sam_ctx
;
1507 invocation_id
= *(samdb_ntds_invocation_id(sam_ctx
));
1509 *r
->out
.level_out
= 6;
1510 /* TODO: linked attributes*/
1511 r
->out
.ctr
->ctr6
.linked_attributes_count
= 0;
1512 r
->out
.ctr
->ctr6
.linked_attributes
= NULL
;
1514 r
->out
.ctr
->ctr6
.object_count
= 0;
1515 r
->out
.ctr
->ctr6
.nc_object_count
= 0;
1516 r
->out
.ctr
->ctr6
.more_data
= false;
1517 r
->out
.ctr
->ctr6
.uptodateness_vector
= NULL
;
1519 /* a RODC doesn't allow for any replication */
1520 ret
= samdb_rodc(sam_ctx
, &am_rodc
);
1521 if (ret
== LDB_SUCCESS
&& am_rodc
) {
1522 DEBUG(0,(__location__
": DsGetNCChanges attempt on RODC\n"));
1523 return WERR_DS_DRA_SOURCE_DISABLED
;
1526 /* Check request revision.
1528 switch (r
->in
.level
) {
1530 req10
= getncchanges_map_req8(mem_ctx
, &r
->in
.req
->req8
);
1531 if (req10
== NULL
) {
1536 req10
= &r
->in
.req
->req10
;
1539 DEBUG(0,(__location__
": Request for DsGetNCChanges with unsupported level %u\n",
1541 return WERR_REVISION_MISMATCH
;
1545 /* Perform access checks. */
1546 /* TODO: we need to support a sync on a specific non-root
1547 * DN. We'll need to find the real partition root here */
1548 ncRoot
= req10
->naming_context
;
1549 if (ncRoot
== NULL
) {
1550 DEBUG(0,(__location__
": Request for DsGetNCChanges with no NC\n"));
1551 return WERR_DS_DRA_INVALID_PARAMETER
;
1554 if (samdb_ntds_options(sam_ctx
, &options
) != LDB_SUCCESS
) {
1555 return WERR_DS_DRA_INTERNAL_ERROR
;
1558 if ((options
& DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL
) &&
1559 !(req10
->replica_flags
& DRSUAPI_DRS_SYNC_FORCED
)) {
1560 return WERR_DS_DRA_SOURCE_DISABLED
;
1563 user_sid
= &dce_call
->conn
->auth_state
.session_info
->security_token
->sids
[PRIMARY_USER_SID_INDEX
];
1565 /* all clients must have GUID_DRS_GET_CHANGES */
1566 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1568 dce_call
->conn
->auth_state
.session_info
->security_token
,
1569 req10
->naming_context
,
1570 GUID_DRS_GET_CHANGES
);
1571 if (!W_ERROR_IS_OK(werr
)) {
1575 /* allowed if the GC PAS and client has
1576 GUID_DRS_GET_FILTERED_ATTRIBUTES */
1577 werr
= dcesrv_drsuapi_is_gc_pas_request(b_state
, req10
, &is_gc_pas_request
);
1578 if (!W_ERROR_IS_OK(werr
)) {
1581 if (is_gc_pas_request
) {
1582 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1584 dce_call
->conn
->auth_state
.session_info
->security_token
,
1585 req10
->naming_context
,
1586 GUID_DRS_GET_FILTERED_ATTRIBUTES
);
1587 if (W_ERROR_IS_OK(werr
)) {
1592 werr
= dcesrv_drsuapi_is_reveal_secrets_request(b_state
, req10
, &is_secret_request
);
1593 if (!W_ERROR_IS_OK(werr
)) {
1596 if (is_secret_request
&& req10
->extended_op
!= DRSUAPI_EXOP_REPL_SECRET
) {
1597 werr
= drs_security_access_check_nc_root(b_state
->sam_ctx
,
1599 dce_call
->conn
->auth_state
.session_info
->security_token
,
1600 req10
->naming_context
,
1601 GUID_DRS_GET_ALL_CHANGES
);
1602 if (!W_ERROR_IS_OK(werr
)) {
1605 has_get_all_changes
= true;
1610 /* for non-administrator replications, check that they have
1611 given the correct source_dsa_invocation_id */
1612 security_level
= security_session_user_level(dce_call
->conn
->auth_state
.session_info
,
1613 samdb_domain_sid(sam_ctx
));
1614 if (security_level
== SECURITY_RO_DOMAIN_CONTROLLER
) {
1615 if (req10
->replica_flags
& DRSUAPI_DRS_WRIT_REP
) {
1616 /* we rely on this flag being unset for RODC requests */
1617 req10
->replica_flags
&= ~DRSUAPI_DRS_WRIT_REP
;
1621 if (req10
->replica_flags
& DRSUAPI_DRS_FULL_SYNC_PACKET
) {
1622 /* Ignore the _in_ uptpdateness vector*/
1623 req10
->uptodateness_vector
= NULL
;
1626 if (GUID_all_zero(&req10
->source_dsa_invocation_id
)) {
1627 req10
->source_dsa_invocation_id
= invocation_id
;
1630 if (!GUID_equal(&req10
->source_dsa_invocation_id
, &invocation_id
)) {
1632 * The given highwatermark is only valid relative to the
1633 * specified source_dsa_invocation_id.
1635 ZERO_STRUCT(req10
->highwatermark
);
1638 getnc_state
= b_state
->getncchanges_state
;
1640 /* see if a previous replication has been abandoned */
1642 struct ldb_dn
*new_dn
= drs_ObjectIdentifier_to_dn(getnc_state
, sam_ctx
, ncRoot
);
1643 if (ldb_dn_compare(new_dn
, getnc_state
->ncRoot_dn
) != 0) {
1644 DEBUG(0,(__location__
": DsGetNCChanges 2nd replication on different DN %s %s (last_dn %s)\n",
1645 ldb_dn_get_linearized(new_dn
),
1646 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
),
1647 ldb_dn_get_linearized(getnc_state
->last_dn
)));
1648 talloc_free(getnc_state
);
1654 ret
= drsuapi_DsReplicaHighWaterMark_cmp(&getnc_state
->last_hwm
,
1655 &req10
->highwatermark
);
1657 DEBUG(0,(__location__
": DsGetNCChanges 2nd replication "
1658 "on DN %s %s highwatermark (last_dn %s)\n",
1659 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
),
1660 (ret
> 0) ? "older" : "newer",
1661 ldb_dn_get_linearized(getnc_state
->last_dn
)));
1662 talloc_free(getnc_state
);
1667 if (getnc_state
== NULL
) {
1668 getnc_state
= talloc_zero(b_state
, struct drsuapi_getncchanges_state
);
1669 if (getnc_state
== NULL
) {
1672 b_state
->getncchanges_state
= getnc_state
;
1673 getnc_state
->ncRoot_dn
= drs_ObjectIdentifier_to_dn(getnc_state
, sam_ctx
, ncRoot
);
1675 /* find out if we are to replicate Schema NC */
1676 ret
= ldb_dn_compare(getnc_state
->ncRoot_dn
,
1677 ldb_get_schema_basedn(b_state
->sam_ctx
));
1678 getnc_state
->is_schema_nc
= (0 == ret
);
1680 if (req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
1681 r
->out
.ctr
->ctr6
.extended_ret
= DRSUAPI_EXOP_ERR_SUCCESS
;
1685 * This is the first replication cycle and it is
1686 * a good place to handle extended operations
1688 * FIXME: we don't fully support extended operations yet
1690 switch (req10
->extended_op
) {
1691 case DRSUAPI_EXOP_NONE
:
1693 case DRSUAPI_EXOP_FSMO_RID_ALLOC
:
1694 werr
= getncchanges_rid_alloc(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1695 W_ERROR_NOT_OK_RETURN(werr
);
1696 search_dn
= ldb_get_default_basedn(sam_ctx
);
1698 case DRSUAPI_EXOP_REPL_SECRET
:
1699 werr
= getncchanges_repl_secret(b_state
, mem_ctx
, req10
,
1702 has_get_all_changes
);
1703 r
->out
.result
= werr
;
1704 W_ERROR_NOT_OK_RETURN(werr
);
1706 case DRSUAPI_EXOP_FSMO_REQ_ROLE
:
1707 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1708 W_ERROR_NOT_OK_RETURN(werr
);
1710 case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE
:
1711 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1712 W_ERROR_NOT_OK_RETURN(werr
);
1714 case DRSUAPI_EXOP_FSMO_REQ_PDC
:
1715 werr
= getncchanges_change_master(b_state
, mem_ctx
, req10
, &r
->out
.ctr
->ctr6
);
1716 W_ERROR_NOT_OK_RETURN(werr
);
1718 case DRSUAPI_EXOP_REPL_OBJ
:
1719 werr
= getncchanges_repl_obj(b_state
, mem_ctx
, req10
, user_sid
, &r
->out
.ctr
->ctr6
);
1720 r
->out
.result
= werr
;
1721 W_ERROR_NOT_OK_RETURN(werr
);
1724 case DRSUAPI_EXOP_FSMO_ABANDON_ROLE
:
1726 DEBUG(0,(__location__
": Request for DsGetNCChanges unsupported extended op 0x%x\n",
1727 (unsigned)req10
->extended_op
));
1728 return WERR_DS_DRA_NOT_SUPPORTED
;
1732 if (!ldb_dn_validate(getnc_state
->ncRoot_dn
) ||
1733 ldb_dn_is_null(getnc_state
->ncRoot_dn
)) {
1734 DEBUG(0,(__location__
": Bad DN '%s'\n",
1735 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
)));
1736 return WERR_DS_DRA_INVALID_PARAMETER
;
1739 /* we need the session key for encrypting password attributes */
1740 status
= dcesrv_inherited_session_key(dce_call
->conn
, &session_key
);
1741 if (!NT_STATUS_IS_OK(status
)) {
1742 DEBUG(0,(__location__
": Failed to get session key\n"));
1743 return WERR_DS_DRA_INTERNAL_ERROR
;
1747 TODO: MS-DRSR section 4.1.10.1.1
1748 Work out if this is the start of a new cycle */
1750 if (getnc_state
->guids
== NULL
) {
1751 const char *extra_filter
;
1752 struct ldb_result
*search_res
= NULL
;
1754 extra_filter
= lpcfg_parm_string(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "object filter");
1756 getnc_state
->min_usn
= req10
->highwatermark
.highest_usn
;
1757 getnc_state
->max_usn
= getnc_state
->min_usn
;
1759 getnc_state
->final_udv
= talloc_zero(getnc_state
,
1760 struct drsuapi_DsReplicaCursor2CtrEx
);
1761 if (getnc_state
->final_udv
== NULL
) {
1764 werr
= get_nc_changes_udv(sam_ctx
, getnc_state
->ncRoot_dn
,
1765 getnc_state
->final_udv
);
1766 if (!W_ERROR_IS_OK(werr
)) {
1770 if (req10
->extended_op
== DRSUAPI_EXOP_NONE
) {
1771 werr
= getncchanges_collect_objects(b_state
, mem_ctx
, req10
,
1772 search_dn
, extra_filter
,
1775 werr
= getncchanges_collect_objects_exop(b_state
, mem_ctx
, req10
,
1777 search_dn
, extra_filter
,
1780 W_ERROR_NOT_OK_RETURN(werr
);
1782 /* extract out the GUIDs list */
1783 getnc_state
->num_records
= search_res
? search_res
->count
: 0;
1784 getnc_state
->guids
= talloc_array(getnc_state
, struct GUID
, getnc_state
->num_records
);
1785 W_ERROR_HAVE_NO_MEMORY(getnc_state
->guids
);
1787 changes
= talloc_array(getnc_state
,
1788 struct drsuapi_changed_objects
,
1789 getnc_state
->num_records
);
1790 W_ERROR_HAVE_NO_MEMORY(changes
);
1792 for (i
=0; i
<getnc_state
->num_records
; i
++) {
1793 changes
[i
].dn
= search_res
->msgs
[i
]->dn
;
1794 changes
[i
].guid
= samdb_result_guid(search_res
->msgs
[i
], "objectGUID");
1795 changes
[i
].usn
= ldb_msg_find_attr_as_uint64(search_res
->msgs
[i
], "uSNChanged", 0);
1797 if (changes
[i
].usn
> getnc_state
->max_usn
) {
1798 getnc_state
->max_usn
= changes
[i
].usn
;
1802 if (req10
->replica_flags
& DRSUAPI_DRS_GET_ANC
) {
1803 LDB_TYPESAFE_QSORT(changes
,
1804 getnc_state
->num_records
,
1806 site_res_cmp_anc_order
);
1808 LDB_TYPESAFE_QSORT(changes
,
1809 getnc_state
->num_records
,
1811 site_res_cmp_usn_order
);
1814 for (i
=0; i
< getnc_state
->num_records
; i
++) {
1815 getnc_state
->guids
[i
] = changes
[i
].guid
;
1816 if (GUID_all_zero(&getnc_state
->guids
[i
])) {
1817 DEBUG(2,("getncchanges: bad objectGUID from %s\n",
1818 ldb_dn_get_linearized(search_res
->msgs
[i
]->dn
)));
1819 return WERR_DS_DRA_INTERNAL_ERROR
;
1823 getnc_state
->final_hwm
.tmp_highest_usn
= getnc_state
->max_usn
;
1824 getnc_state
->final_hwm
.reserved_usn
= 0;
1825 getnc_state
->final_hwm
.highest_usn
= getnc_state
->max_usn
;
1827 talloc_free(search_res
);
1828 talloc_free(changes
);
1831 if (req10
->uptodateness_vector
) {
1832 /* make sure its sorted */
1833 TYPESAFE_QSORT(req10
->uptodateness_vector
->cursors
,
1834 req10
->uptodateness_vector
->count
,
1835 drsuapi_DsReplicaCursor_compare
);
1838 /* Prefix mapping */
1839 schema
= dsdb_get_schema(sam_ctx
, mem_ctx
);
1841 DEBUG(0,("No schema in sam_ctx\n"));
1842 return WERR_DS_DRA_INTERNAL_ERROR
;
1845 r
->out
.ctr
->ctr6
.naming_context
= talloc(mem_ctx
, struct drsuapi_DsReplicaObjectIdentifier
);
1846 *r
->out
.ctr
->ctr6
.naming_context
= *ncRoot
;
1848 if (dsdb_find_guid_by_dn(sam_ctx
, getnc_state
->ncRoot_dn
,
1849 &r
->out
.ctr
->ctr6
.naming_context
->guid
) != LDB_SUCCESS
) {
1850 DEBUG(0,(__location__
": Failed to find GUID of ncRoot_dn %s\n",
1851 ldb_dn_get_linearized(getnc_state
->ncRoot_dn
)));
1852 return WERR_DS_DRA_INTERNAL_ERROR
;
1855 /* find the SID if there is one */
1856 dsdb_find_sid_by_dn(sam_ctx
, getnc_state
->ncRoot_dn
, &r
->out
.ctr
->ctr6
.naming_context
->sid
);
1858 dsdb_get_oid_mappings_drsuapi(schema
, true, mem_ctx
, &ctr
);
1859 r
->out
.ctr
->ctr6
.mapping_ctr
= *ctr
;
1861 r
->out
.ctr
->ctr6
.source_dsa_guid
= *(samdb_ntds_objectGUID(sam_ctx
));
1862 r
->out
.ctr
->ctr6
.source_dsa_invocation_id
= *(samdb_ntds_invocation_id(sam_ctx
));
1864 r
->out
.ctr
->ctr6
.old_highwatermark
= req10
->highwatermark
;
1865 r
->out
.ctr
->ctr6
.new_highwatermark
= req10
->highwatermark
;
1867 r
->out
.ctr
->ctr6
.first_object
= NULL
;
1868 currentObject
= &r
->out
.ctr
->ctr6
.first_object
;
1870 /* use this to force single objects at a time, which is useful
1871 * for working out what object is giving problems
1873 max_objects
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max object sync", 1000);
1874 if (req10
->max_object_count
< max_objects
) {
1875 max_objects
= req10
->max_object_count
;
1878 * TODO: work out how the maximum should be calculated
1880 max_links
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max link sync", 1500);
1883 * Maximum time that we can spend in a getncchanges
1884 * in order to avoid timeout of the other part.
1885 * 10 seconds by default.
1887 max_wait
= lpcfg_parm_int(dce_call
->conn
->dce_ctx
->lp_ctx
, NULL
, "drs", "max work time", 10);
1888 for (i
=getnc_state
->num_processed
;
1889 i
<getnc_state
->num_records
&&
1891 (r
->out
.ctr
->ctr6
.object_count
< max_objects
)
1892 && !max_wait_reached
;
1895 struct drsuapi_DsReplicaObjectListItemEx
*obj
;
1896 struct ldb_message
*msg
;
1897 static const char * const msg_attrs
[] = {
1899 "nTSecurityDescriptor",
1901 "replPropertyMetaData",
1902 DSDB_SECRET_ATTRIBUTES
,
1904 struct ldb_result
*msg_res
;
1905 struct ldb_dn
*msg_dn
;
1907 obj
= talloc_zero(mem_ctx
, struct drsuapi_DsReplicaObjectListItemEx
);
1908 W_ERROR_HAVE_NO_MEMORY(obj
);
1910 msg_dn
= ldb_dn_new_fmt(obj
, sam_ctx
, "<GUID=%s>", GUID_string(obj
, &getnc_state
->guids
[i
]));
1911 W_ERROR_HAVE_NO_MEMORY(msg_dn
);
1914 /* by re-searching here we avoid having a lot of full
1915 * records in memory between calls to getncchanges
1917 ret
= drsuapi_search_with_extended_dn(sam_ctx
, obj
, &msg_res
,
1919 LDB_SCOPE_BASE
, msg_attrs
, NULL
);
1920 if (ret
!= LDB_SUCCESS
) {
1921 if (ret
!= LDB_ERR_NO_SUCH_OBJECT
) {
1922 DEBUG(1,("getncchanges: failed to fetch DN %s - %s\n",
1923 ldb_dn_get_extended_linearized(obj
, msg_dn
, 1), ldb_errstring(sam_ctx
)));
1929 msg
= msg_res
->msgs
[0];
1931 max_wait_reached
= (time(NULL
) - start
> max_wait
);
1933 werr
= get_nc_changes_build_object(obj
, msg
,
1934 sam_ctx
, getnc_state
->ncRoot_dn
,
1935 getnc_state
->is_schema_nc
,
1936 schema
, &session_key
, getnc_state
->min_usn
,
1937 req10
->replica_flags
,
1938 req10
->partial_attribute_set
,
1939 req10
->uptodateness_vector
,
1942 if (!W_ERROR_IS_OK(werr
)) {
1946 werr
= get_nc_changes_add_links(sam_ctx
, getnc_state
,
1947 getnc_state
->ncRoot_dn
,
1948 schema
, getnc_state
->min_usn
,
1949 req10
->replica_flags
,
1951 &getnc_state
->la_list
,
1952 &getnc_state
->la_count
,
1953 req10
->uptodateness_vector
);
1954 if (!W_ERROR_IS_OK(werr
)) {
1958 uSN
= ldb_msg_find_attr_as_int(msg
, "uSNChanged", -1);
1959 if (uSN
> getnc_state
->max_usn
) {
1961 * Only report the max_usn we had at the start
1962 * of the replication cycle.
1964 * If this object has changed lately we better
1965 * let the destination dsa refetch the change.
1966 * This is better than the risk of loosing some
1967 * objects or linked attributes.
1971 if (uSN
> r
->out
.ctr
->ctr6
.new_highwatermark
.tmp_highest_usn
) {
1972 r
->out
.ctr
->ctr6
.new_highwatermark
.tmp_highest_usn
= uSN
;
1973 r
->out
.ctr
->ctr6
.new_highwatermark
.reserved_usn
= 0;
1976 if (obj
->meta_data_ctr
== NULL
) {
1977 DEBUG(8,(__location__
": getncchanges skipping send of object %s\n",
1978 ldb_dn_get_linearized(msg
->dn
)));
1979 /* no attributes to send */
1984 r
->out
.ctr
->ctr6
.object_count
++;
1986 *currentObject
= obj
;
1987 currentObject
= &obj
->next_object
;
1989 DEBUG(8,(__location__
": replicating object %s\n", ldb_dn_get_linearized(msg
->dn
)));
1991 talloc_free(getnc_state
->last_dn
);
1992 getnc_state
->last_dn
= talloc_move(getnc_state
, &msg
->dn
);
1994 talloc_free(msg_res
);
1995 talloc_free(msg_dn
);
1998 getnc_state
->num_processed
= i
;
2000 r
->out
.ctr
->ctr6
.nc_object_count
= getnc_state
->num_records
;
2002 /* the client can us to call UpdateRefs on its behalf to
2003 re-establish monitoring of the NC */
2004 if ((req10
->replica_flags
& (DRSUAPI_DRS_ADD_REF
| DRSUAPI_DRS_REF_GCSPN
)) &&
2005 !GUID_all_zero(&req10
->destination_dsa_guid
)) {
2006 struct drsuapi_DsReplicaUpdateRefsRequest1 ureq
;
2007 DEBUG(3,("UpdateRefs on getncchanges for %s\n",
2008 GUID_string(mem_ctx
, &req10
->destination_dsa_guid
)));
2009 ureq
.naming_context
= ncRoot
;
2010 ureq
.dest_dsa_dns_name
= samdb_ntds_msdcs_dns_name(b_state
->sam_ctx
, mem_ctx
,
2011 &req10
->destination_dsa_guid
);
2012 if (!ureq
.dest_dsa_dns_name
) {
2015 ureq
.dest_dsa_guid
= req10
->destination_dsa_guid
;
2016 ureq
.options
= DRSUAPI_DRS_ADD_REF
|
2017 DRSUAPI_DRS_ASYNC_OP
|
2018 DRSUAPI_DRS_GETCHG_CHECK
;
2020 /* we also need to pass through the
2021 DRSUAPI_DRS_REF_GCSPN bit so that repsTo gets flagged
2022 to send notifies using the GC SPN */
2023 ureq
.options
|= (req10
->replica_flags
& DRSUAPI_DRS_REF_GCSPN
);
2025 werr
= drsuapi_UpdateRefs(b_state
, mem_ctx
, &ureq
);
2026 if (!W_ERROR_IS_OK(werr
)) {
2027 DEBUG(0,(__location__
": Failed UpdateRefs on %s for %s in DsGetNCChanges - %s\n",
2028 drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
), ureq
.dest_dsa_dns_name
,
2035 * This is just a guess, how to calculate the
2036 * number of linked attributes to send, we need to
2037 * find out how to do this right.
2039 if (r
->out
.ctr
->ctr6
.object_count
>= max_links
) {
2042 max_links
-= r
->out
.ctr
->ctr6
.object_count
;
2045 link_total
= getnc_state
->la_count
;
2047 if (i
< getnc_state
->num_records
) {
2048 r
->out
.ctr
->ctr6
.more_data
= true;
2050 /* sort the whole array the first time */
2051 if (!getnc_state
->la_sorted
) {
2052 LDB_TYPESAFE_QSORT(getnc_state
->la_list
, getnc_state
->la_count
,
2053 sam_ctx
, linked_attribute_compare
);
2054 getnc_state
->la_sorted
= true;
2057 link_count
= getnc_state
->la_count
- getnc_state
->la_idx
;
2058 link_count
= MIN(max_links
, link_count
);
2060 r
->out
.ctr
->ctr6
.linked_attributes_count
= link_count
;
2061 r
->out
.ctr
->ctr6
.linked_attributes
= getnc_state
->la_list
+ getnc_state
->la_idx
;
2063 getnc_state
->la_idx
+= link_count
;
2064 link_given
= getnc_state
->la_idx
;
2066 if (getnc_state
->la_idx
< getnc_state
->la_count
) {
2067 r
->out
.ctr
->ctr6
.more_data
= true;
2071 if (!r
->out
.ctr
->ctr6
.more_data
) {
2072 talloc_steal(mem_ctx
, getnc_state
->la_list
);
2074 r
->out
.ctr
->ctr6
.new_highwatermark
= getnc_state
->final_hwm
;
2075 r
->out
.ctr
->ctr6
.uptodateness_vector
= talloc_move(mem_ctx
,
2076 &getnc_state
->final_udv
);
2078 talloc_free(getnc_state
);
2079 b_state
->getncchanges_state
= NULL
;
2081 ret
= drsuapi_DsReplicaHighWaterMark_cmp(&r
->out
.ctr
->ctr6
.old_highwatermark
,
2082 &r
->out
.ctr
->ctr6
.new_highwatermark
);
2085 * We need to make sure that we never return the
2086 * same highwatermark within the same replication
2087 * cycle more than once. Otherwise we cannot detect
2088 * when the client uses an unexptected highwatermark.
2090 * This is a HACK which is needed because our
2091 * object ordering is wrong and set tmp_highest_usn
2092 * to a value that is higher than what we already
2093 * sent to the client (destination dsa).
2095 r
->out
.ctr
->ctr6
.new_highwatermark
.reserved_usn
+= 1;
2098 getnc_state
->last_hwm
= r
->out
.ctr
->ctr6
.new_highwatermark
;
2101 if (req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
2102 r
->out
.ctr
->ctr6
.uptodateness_vector
= NULL
;
2103 r
->out
.ctr
->ctr6
.nc_object_count
= 0;
2104 ZERO_STRUCT(r
->out
.ctr
->ctr6
.new_highwatermark
);
2107 DEBUG(r
->out
.ctr
->ctr6
.more_data
?4:2,
2108 ("DsGetNCChanges with uSNChanged >= %llu flags 0x%08x on %s gave %u objects (done %u/%u) %u links (done %u/%u (as %s))\n",
2109 (unsigned long long)(req10
->highwatermark
.highest_usn
+1),
2110 req10
->replica_flags
, drs_ObjectIdentifier_to_string(mem_ctx
, ncRoot
),
2111 r
->out
.ctr
->ctr6
.object_count
,
2112 i
, r
->out
.ctr
->ctr6
.more_data
?getnc_state
->num_records
:i
,
2113 r
->out
.ctr
->ctr6
.linked_attributes_count
,
2114 link_given
, link_total
,
2115 dom_sid_string(mem_ctx
, user_sid
)));
2118 if (!r
->out
.ctr
->ctr6
.more_data
&& req10
->extended_op
!= DRSUAPI_EXOP_NONE
) {
2119 NDR_PRINT_FUNCTION_DEBUG(drsuapi_DsGetNCChanges
, NDR_BOTH
, r
);