4 Copyright (C) Simo Sorce 2006-2008
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
6 Copyright (C) Nadezhda Ivanova 2009
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * Component: DS Security descriptor module
28 * - Calculate the security descriptor of a newly created object
29 * - Perform sd recalculation on a move operation
30 * - Handle sd modification invariants
32 * Author: Nadezhda Ivanova
36 #include <ldb_module.h>
37 #include "util/dlinklist.h"
38 #include "dsdb/samdb/samdb.h"
39 #include "librpc/ndr/libndr.h"
40 #include "librpc/gen_ndr/ndr_security.h"
41 #include "libcli/security/security.h"
42 #include "auth/auth.h"
43 #include "param/param.h"
44 #include "dsdb/samdb/ldb_modules/util.h"
46 struct descriptor_data
{
50 struct descriptor_context
{
51 struct ldb_module
*module
;
52 struct ldb_request
*req
;
53 struct ldb_message
*msg
;
54 struct ldb_reply
*search_res
;
55 struct ldb_reply
*search_oc_res
;
56 struct ldb_val
*parentsd_val
;
57 struct ldb_message_element
*sd_element
;
58 struct ldb_val
*sd_val
;
60 int (*step_fn
)(struct descriptor_context
*);
63 static struct dom_sid
*get_default_ag(TALLOC_CTX
*mem_ctx
,
65 struct security_token
*token
,
66 struct ldb_context
*ldb
)
68 TALLOC_CTX
*tmp_ctx
= talloc_new(mem_ctx
);
69 const struct dom_sid
*domain_sid
= samdb_domain_sid(ldb
);
70 struct dom_sid
*da_sid
= dom_sid_add_rid(tmp_ctx
, domain_sid
, DOMAIN_RID_ADMINS
);
71 struct dom_sid
*ea_sid
= dom_sid_add_rid(tmp_ctx
, domain_sid
, DOMAIN_RID_ENTERPRISE_ADMINS
);
72 struct dom_sid
*sa_sid
= dom_sid_add_rid(tmp_ctx
, domain_sid
, DOMAIN_RID_SCHEMA_ADMINS
);
73 struct dom_sid
*dag_sid
;
74 struct ldb_dn
*nc_root
;
77 ret
= dsdb_find_nc_root(ldb
, tmp_ctx
, dn
, &nc_root
);
78 if (ret
!= LDB_SUCCESS
) {
83 if (ldb_dn_compare(nc_root
, ldb_get_schema_basedn(ldb
)) == 0) {
84 if (security_token_has_sid(token
, sa_sid
)) {
85 dag_sid
= dom_sid_dup(mem_ctx
, sa_sid
);
86 } else if (security_token_has_sid(token
, ea_sid
)) {
87 dag_sid
= dom_sid_dup(mem_ctx
, ea_sid
);
88 } else if (security_token_has_sid(token
, da_sid
)) {
89 dag_sid
= dom_sid_dup(mem_ctx
, da_sid
);
90 } else if (security_token_is_system(token
)) {
91 dag_sid
= dom_sid_dup(mem_ctx
, sa_sid
);
95 } else if (ldb_dn_compare(nc_root
, ldb_get_config_basedn(ldb
)) == 0) {
96 if (security_token_has_sid(token
, ea_sid
)) {
97 dag_sid
= dom_sid_dup(mem_ctx
, ea_sid
);
98 } else if (security_token_has_sid(token
, da_sid
)) {
99 dag_sid
= dom_sid_dup(mem_ctx
, da_sid
);
100 } else if (security_token_is_system(token
)) {
101 dag_sid
= dom_sid_dup(mem_ctx
, ea_sid
);
105 } else if (ldb_dn_compare(nc_root
, ldb_get_default_basedn(ldb
)) == 0) {
106 if (security_token_has_sid(token
, da_sid
)) {
107 dag_sid
= dom_sid_dup(mem_ctx
, da_sid
);
108 } else if (security_token_has_sid(token
, ea_sid
)) {
109 dag_sid
= dom_sid_dup(mem_ctx
, ea_sid
);
110 } else if (security_token_is_system(token
)) {
111 dag_sid
= dom_sid_dup(mem_ctx
, da_sid
);
119 talloc_free(tmp_ctx
);
123 static struct security_descriptor
*get_sd_unpacked(struct ldb_module
*module
, TALLOC_CTX
*mem_ctx
,
124 const struct dsdb_class
*objectclass
)
126 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
127 struct security_descriptor
*sd
;
128 const struct dom_sid
*domain_sid
= samdb_domain_sid(ldb
);
130 if (!objectclass
->defaultSecurityDescriptor
|| !domain_sid
) {
134 sd
= sddl_decode(mem_ctx
,
135 objectclass
->defaultSecurityDescriptor
,
140 static struct dom_sid
*get_default_group(TALLOC_CTX
*mem_ctx
,
141 struct ldb_context
*ldb
,
144 if (dsdb_functional_level(ldb
) >= DS_DOMAIN_FUNCTION_2008
) {
151 static struct security_descriptor
*descr_handle_sd_flags(TALLOC_CTX
*mem_ctx
,
152 struct security_descriptor
*new_sd
,
153 struct security_descriptor
*old_sd
,
156 struct security_descriptor
*final_sd
;
157 /* if there is no control or control == 0 modify everything */
162 final_sd
= talloc_zero(mem_ctx
, struct security_descriptor
);
163 final_sd
->revision
= SECURITY_DESCRIPTOR_REVISION_1
;
164 final_sd
->type
= SEC_DESC_SELF_RELATIVE
;
166 if (sd_flags
& (SECINFO_OWNER
)) {
167 final_sd
->owner_sid
= talloc_memdup(mem_ctx
, new_sd
->owner_sid
, sizeof(struct dom_sid
));
168 final_sd
->type
|= new_sd
->type
& SEC_DESC_OWNER_DEFAULTED
;
171 final_sd
->owner_sid
= talloc_memdup(mem_ctx
, old_sd
->owner_sid
, sizeof(struct dom_sid
));
172 final_sd
->type
|= old_sd
->type
& SEC_DESC_OWNER_DEFAULTED
;
175 if (sd_flags
& (SECINFO_GROUP
)) {
176 final_sd
->group_sid
= talloc_memdup(mem_ctx
, new_sd
->group_sid
, sizeof(struct dom_sid
));
177 final_sd
->type
|= new_sd
->type
& SEC_DESC_GROUP_DEFAULTED
;
180 final_sd
->group_sid
= talloc_memdup(mem_ctx
, old_sd
->group_sid
, sizeof(struct dom_sid
));
181 final_sd
->type
|= old_sd
->type
& SEC_DESC_GROUP_DEFAULTED
;
184 if (sd_flags
& (SECINFO_SACL
)) {
185 final_sd
->sacl
= security_acl_dup(mem_ctx
,new_sd
->sacl
);
186 final_sd
->type
|= new_sd
->type
& (SEC_DESC_SACL_PRESENT
|
187 SEC_DESC_SACL_DEFAULTED
|SEC_DESC_SACL_AUTO_INHERIT_REQ
|
188 SEC_DESC_SACL_AUTO_INHERITED
|SEC_DESC_SACL_PROTECTED
|
189 SEC_DESC_SERVER_SECURITY
);
191 else if (old_sd
&& old_sd
->sacl
) {
192 final_sd
->sacl
= security_acl_dup(mem_ctx
,old_sd
->sacl
);
193 final_sd
->type
|= old_sd
->type
& (SEC_DESC_SACL_PRESENT
|
194 SEC_DESC_SACL_DEFAULTED
|SEC_DESC_SACL_AUTO_INHERIT_REQ
|
195 SEC_DESC_SACL_AUTO_INHERITED
|SEC_DESC_SACL_PROTECTED
|
196 SEC_DESC_SERVER_SECURITY
);
199 if (sd_flags
& (SECINFO_DACL
)) {
200 final_sd
->dacl
= security_acl_dup(mem_ctx
,new_sd
->dacl
);
201 final_sd
->type
|= new_sd
->type
& (SEC_DESC_DACL_PRESENT
|
202 SEC_DESC_DACL_DEFAULTED
|SEC_DESC_DACL_AUTO_INHERIT_REQ
|
203 SEC_DESC_DACL_AUTO_INHERITED
|SEC_DESC_DACL_PROTECTED
|
204 SEC_DESC_DACL_TRUSTED
);
206 else if (old_sd
&& old_sd
->dacl
) {
207 final_sd
->dacl
= security_acl_dup(mem_ctx
,old_sd
->dacl
);
208 final_sd
->type
|= old_sd
->type
& (SEC_DESC_DACL_PRESENT
|
209 SEC_DESC_DACL_DEFAULTED
|SEC_DESC_DACL_AUTO_INHERIT_REQ
|
210 SEC_DESC_DACL_AUTO_INHERITED
|SEC_DESC_DACL_PROTECTED
|
211 SEC_DESC_DACL_TRUSTED
);
213 /* not so sure about this */
214 final_sd
->type
|= new_sd
->type
& SEC_DESC_RM_CONTROL_VALID
;
218 static DATA_BLOB
*get_new_descriptor(struct ldb_module
*module
,
221 const struct dsdb_class
*objectclass
,
222 const struct ldb_val
*parent
,
223 const struct ldb_val
*object
,
224 const struct ldb_val
*old_sd
,
227 struct security_descriptor
*user_descriptor
= NULL
, *parent_descriptor
= NULL
;
228 struct security_descriptor
*old_descriptor
= NULL
;
229 struct security_descriptor
*new_sd
, *final_sd
;
230 DATA_BLOB
*linear_sd
;
231 enum ndr_err_code ndr_err
;
232 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
233 struct auth_session_info
*session_info
234 = ldb_get_opaque(ldb
, "sessionInfo");
235 const struct dom_sid
*domain_sid
= samdb_domain_sid(ldb
);
237 struct dom_sid
*default_owner
;
238 struct dom_sid
*default_group
;
239 struct security_descriptor
*default_descriptor
= NULL
;
241 if (objectclass
!= NULL
) {
242 default_descriptor
= get_sd_unpacked(module
, mem_ctx
, objectclass
);
246 user_descriptor
= talloc(mem_ctx
, struct security_descriptor
);
247 if (!user_descriptor
) {
250 ndr_err
= ndr_pull_struct_blob(object
, user_descriptor
,
252 (ndr_pull_flags_fn_t
)ndr_pull_security_descriptor
);
254 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
255 talloc_free(user_descriptor
);
259 user_descriptor
= default_descriptor
;
263 old_descriptor
= talloc(mem_ctx
, struct security_descriptor
);
264 if (!old_descriptor
) {
267 ndr_err
= ndr_pull_struct_blob(old_sd
, old_descriptor
,
269 (ndr_pull_flags_fn_t
)ndr_pull_security_descriptor
);
271 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
272 talloc_free(old_descriptor
);
278 parent_descriptor
= talloc(mem_ctx
, struct security_descriptor
);
279 if (!parent_descriptor
) {
282 ndr_err
= ndr_pull_struct_blob(parent
, parent_descriptor
,
284 (ndr_pull_flags_fn_t
)ndr_pull_security_descriptor
);
286 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
287 talloc_free(parent_descriptor
);
292 if (user_descriptor
&& default_descriptor
&&
293 (user_descriptor
->dacl
== NULL
))
295 user_descriptor
->dacl
= default_descriptor
->dacl
;
296 user_descriptor
->type
|= default_descriptor
->type
& (
297 SEC_DESC_DACL_PRESENT
|
298 SEC_DESC_DACL_DEFAULTED
|SEC_DESC_DACL_AUTO_INHERIT_REQ
|
299 SEC_DESC_DACL_AUTO_INHERITED
|SEC_DESC_DACL_PROTECTED
|
300 SEC_DESC_DACL_TRUSTED
);
303 if (user_descriptor
&& default_descriptor
&&
304 (user_descriptor
->sacl
== NULL
))
306 user_descriptor
->sacl
= default_descriptor
->sacl
;
307 user_descriptor
->type
|= default_descriptor
->type
& (
308 SEC_DESC_SACL_PRESENT
|
309 SEC_DESC_SACL_DEFAULTED
|SEC_DESC_SACL_AUTO_INHERIT_REQ
|
310 SEC_DESC_SACL_AUTO_INHERITED
|SEC_DESC_SACL_PROTECTED
|
311 SEC_DESC_SERVER_SECURITY
);
314 default_owner
= get_default_ag(mem_ctx
, dn
,
315 session_info
->security_token
, ldb
);
316 default_group
= get_default_group(mem_ctx
, ldb
, default_owner
);
317 new_sd
= create_security_descriptor(mem_ctx
, parent_descriptor
, user_descriptor
, true,
318 NULL
, SEC_DACL_AUTO_INHERIT
|SEC_SACL_AUTO_INHERIT
,
319 session_info
->security_token
,
320 default_owner
, default_group
,
321 map_generic_rights_ds
);
325 final_sd
= descr_handle_sd_flags(mem_ctx
, new_sd
, old_descriptor
, sd_flags
);
331 if (final_sd
->dacl
) {
332 final_sd
->dacl
->revision
= SECURITY_ACL_REVISION_ADS
;
334 if (final_sd
->sacl
) {
335 final_sd
->sacl
->revision
= SECURITY_ACL_REVISION_ADS
;
338 sddl_sd
= sddl_encode(mem_ctx
, final_sd
, domain_sid
);
339 DEBUG(10, ("Object %s created with desriptor %s\n\n", ldb_dn_get_linearized(dn
), sddl_sd
));
341 linear_sd
= talloc(mem_ctx
, DATA_BLOB
);
346 ndr_err
= ndr_push_struct_blob(linear_sd
, mem_ctx
,
348 (ndr_push_flags_fn_t
)ndr_push_security_descriptor
);
349 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
356 static DATA_BLOB
*descr_get_descriptor_to_show(struct ldb_module
*module
,
361 struct security_descriptor
*old_sd
, *final_sd
;
362 DATA_BLOB
*linear_sd
;
363 enum ndr_err_code ndr_err
;
365 old_sd
= talloc(mem_ctx
, struct security_descriptor
);
369 ndr_err
= ndr_pull_struct_blob(sd
, old_sd
,
371 (ndr_pull_flags_fn_t
)ndr_pull_security_descriptor
);
373 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
378 final_sd
= descr_handle_sd_flags(mem_ctx
, old_sd
, NULL
, sd_flags
);
384 linear_sd
= talloc(mem_ctx
, DATA_BLOB
);
389 ndr_err
= ndr_push_struct_blob(linear_sd
, mem_ctx
,
391 (ndr_push_flags_fn_t
)ndr_push_security_descriptor
);
392 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
399 static struct descriptor_context
*descriptor_init_context(struct ldb_module
*module
,
400 struct ldb_request
*req
)
402 struct ldb_context
*ldb
;
403 struct descriptor_context
*ac
;
405 ldb
= ldb_module_get_ctx(module
);
407 ac
= talloc_zero(req
, struct descriptor_context
);
409 ldb_set_errstring(ldb
, "Out of Memory");
418 static int descriptor_search_callback(struct ldb_request
*req
, struct ldb_reply
*ares
)
420 struct descriptor_context
*ac
;
421 struct ldb_val
*sd_val
= NULL
;
422 struct ldb_message_element
*sd_el
;
426 ac
= talloc_get_type(req
->context
, struct descriptor_context
);
429 ret
= LDB_ERR_OPERATIONS_ERROR
;
432 if (ares
->error
!= LDB_SUCCESS
) {
433 return ldb_module_done(ac
->req
, ares
->controls
,
434 ares
->response
, ares
->error
);
437 switch (ares
->type
) {
438 case LDB_REPLY_ENTRY
:
439 sd_el
= ldb_msg_find_element(ares
->message
, "nTSecurityDescriptor");
441 sd_val
= sd_el
->values
;
445 show_sd
= descr_get_descriptor_to_show(ac
->module
, ac
->req
,
446 sd_val
, ac
->sd_flags
);
448 ret
= LDB_ERR_OPERATIONS_ERROR
;
451 ldb_msg_remove_attr(ares
->message
, "nTSecurityDescriptor");
452 ret
= ldb_msg_add_steal_value(ares
->message
, "nTSecurityDescriptor", show_sd
);
453 if (ret
!= LDB_SUCCESS
) {
457 return ldb_module_send_entry(ac
->req
, ares
->message
, ares
->controls
);
459 case LDB_REPLY_REFERRAL
:
460 return ldb_module_send_referral(ac
->req
, ares
->referral
);
463 return ldb_module_done(ac
->req
, ares
->controls
,
464 ares
->response
, ares
->error
);
469 return ldb_module_done(ac
->req
, NULL
, NULL
, ret
);
472 static int descriptor_add(struct ldb_module
*module
, struct ldb_request
*req
)
474 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
475 struct ldb_request
*add_req
;
476 struct ldb_message
*msg
;
477 struct ldb_result
*parent_res
;
478 const struct ldb_val
*parent_sd
= NULL
;
479 const struct ldb_val
*user_sd
;
480 struct ldb_dn
*dn
= req
->op
.add
.message
->dn
;
481 struct ldb_dn
*parent_dn
, *nc_root
;
482 struct ldb_message_element
*objectclass_element
, *sd_element
;
484 const struct dsdb_schema
*schema
;
486 const struct dsdb_class
*objectclass
;
487 static const char * const parent_attrs
[] = { "nTSecurityDescriptor", NULL
};
488 uint32_t instanceType
;
490 uint32_t sd_flags
= dsdb_request_sd_flags(req
, NULL
);
492 /* do not manipulate our control entries */
493 if (ldb_dn_is_special(dn
)) {
494 return ldb_next_request(module
, req
);
497 user_sd
= ldb_msg_find_ldb_val(req
->op
.add
.message
, "nTSecurityDescriptor");
498 sd_element
= ldb_msg_find_element(req
->op
.add
.message
, "nTSecurityDescriptor");
499 /* nTSecurityDescriptor without a value is an error, letting through so it is handled */
500 if (user_sd
== NULL
&& sd_element
) {
501 return ldb_next_request(module
, req
);
504 ldb_debug(ldb
, LDB_DEBUG_TRACE
,"descriptor_add: %s\n", ldb_dn_get_linearized(dn
));
506 instanceType
= ldb_msg_find_attr_as_uint(req
->op
.add
.message
, "instanceType", 0);
508 if (instanceType
& INSTANCE_TYPE_IS_NC_HEAD
) {
513 ret
= dsdb_find_nc_root(ldb
, req
, dn
, &nc_root
);
514 if (ret
!= LDB_SUCCESS
) {
515 ldb_debug(ldb
, LDB_DEBUG_TRACE
,"descriptor_add: Could not find NC root for %s\n",
516 ldb_dn_get_linearized(dn
));
520 if (ldb_dn_compare(dn
, nc_root
) == 0) {
521 DEBUG(0, ("Found DN %s being a NC by the old method\n", ldb_dn_get_linearized(dn
)));
527 DEBUG(2, ("DN: %s is a NC\n", ldb_dn_get_linearized(dn
)));
530 /* if the object has a parent, retrieve its SD to
531 * use for calculation. Unfortunately we do not yet have
532 * instanceType, so we use dsdb_find_nc_root. */
534 parent_dn
= ldb_dn_get_parent(req
, dn
);
535 if (parent_dn
== NULL
) {
539 /* we aren't any NC */
540 ret
= dsdb_module_search_dn(module
, req
, &parent_res
, parent_dn
,
542 DSDB_FLAG_NEXT_MODULE
|
543 DSDB_FLAG_AS_SYSTEM
|
544 DSDB_SEARCH_SHOW_RECYCLED
,
546 if (ret
!= LDB_SUCCESS
) {
547 ldb_debug(ldb
, LDB_DEBUG_TRACE
,"descriptor_add: Could not find SD for %s\n",
548 ldb_dn_get_linearized(parent_dn
));
551 if (parent_res
->count
!= 1) {
552 return ldb_operr(ldb
);
554 parent_sd
= ldb_msg_find_ldb_val(parent_res
->msgs
[0], "nTSecurityDescriptor");
557 schema
= dsdb_get_schema(ldb
, req
);
559 objectclass_element
= ldb_msg_find_element(req
->op
.add
.message
, "objectClass");
560 if (objectclass_element
== NULL
) {
561 return ldb_operr(ldb
);
564 objectclass
= dsdb_get_last_structural_class(schema
,
565 objectclass_element
);
566 if (objectclass
== NULL
) {
567 return ldb_operr(ldb
);
571 * The SD_FLAG control is ignored on add
572 * and we default to all bits set.
576 sd
= get_new_descriptor(module
, dn
, req
,
577 objectclass
, parent_sd
,
578 user_sd
, NULL
, sd_flags
);
580 return ldb_operr(ldb
);
582 msg
= ldb_msg_copy_shallow(req
, req
->op
.add
.message
);
586 if (sd_element
!= NULL
) {
587 sd_element
->values
[0] = *sd
;
589 ret
= ldb_msg_add_steal_value(msg
,
590 "nTSecurityDescriptor",
592 if (ret
!= LDB_SUCCESS
) {
597 ret
= ldb_build_add_req(&add_req
, ldb
, req
,
600 req
, dsdb_next_callback
,
602 LDB_REQ_SET_LOCATION(add_req
);
603 if (ret
!= LDB_SUCCESS
) {
604 return ldb_error(ldb
, ret
,
605 "descriptor_add: Error creating new add request.");
608 return ldb_next_request(module
, add_req
);
611 static int descriptor_modify(struct ldb_module
*module
, struct ldb_request
*req
)
613 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
614 struct ldb_request
*mod_req
;
615 struct ldb_message
*msg
;
616 struct ldb_result
*current_res
, *parent_res
;
617 const struct ldb_val
*old_sd
= NULL
;
618 const struct ldb_val
*parent_sd
= NULL
;
619 const struct ldb_val
*user_sd
;
620 struct ldb_dn
*dn
= req
->op
.mod
.message
->dn
;
621 struct ldb_dn
*parent_dn
;
622 struct ldb_message_element
*objectclass_element
;
624 uint32_t instanceType
;
625 uint32_t sd_flags
= dsdb_request_sd_flags(req
, NULL
);
626 const struct dsdb_schema
*schema
;
628 const struct dsdb_class
*objectclass
;
629 static const char * const parent_attrs
[] = { "nTSecurityDescriptor", NULL
};
630 static const char * const current_attrs
[] = { "nTSecurityDescriptor",
632 "objectClass", NULL
};
634 /* do not manipulate our control entries */
635 if (ldb_dn_is_special(dn
)) {
636 return ldb_next_request(module
, req
);
639 user_sd
= ldb_msg_find_ldb_val(req
->op
.mod
.message
, "nTSecurityDescriptor");
641 return ldb_next_request(module
, req
);
644 ldb_debug(ldb
, LDB_DEBUG_TRACE
,"descriptor_modify: %s\n", ldb_dn_get_linearized(dn
));
646 ret
= dsdb_module_search_dn(module
, req
, ¤t_res
, dn
,
648 DSDB_FLAG_NEXT_MODULE
|
649 DSDB_FLAG_AS_SYSTEM
|
650 DSDB_SEARCH_SHOW_RECYCLED
,
652 if (ret
!= LDB_SUCCESS
) {
653 ldb_debug(ldb
, LDB_DEBUG_ERROR
,"descriptor_modify: Could not find %s\n",
654 ldb_dn_get_linearized(dn
));
658 instanceType
= ldb_msg_find_attr_as_uint(current_res
->msgs
[0],
660 /* if the object has a parent, retrieve its SD to
661 * use for calculation */
662 if (!ldb_dn_is_null(current_res
->msgs
[0]->dn
) &&
663 !(instanceType
& INSTANCE_TYPE_IS_NC_HEAD
)) {
664 parent_dn
= ldb_dn_get_parent(req
, dn
);
665 if (parent_dn
== NULL
) {
668 ret
= dsdb_module_search_dn(module
, req
, &parent_res
, parent_dn
,
670 DSDB_FLAG_NEXT_MODULE
|
671 DSDB_FLAG_AS_SYSTEM
|
672 DSDB_SEARCH_SHOW_RECYCLED
,
674 if (ret
!= LDB_SUCCESS
) {
675 ldb_debug(ldb
, LDB_DEBUG_ERROR
, "descriptor_modify: Could not find SD for %s\n",
676 ldb_dn_get_linearized(parent_dn
));
679 if (parent_res
->count
!= 1) {
680 return ldb_operr(ldb
);
682 parent_sd
= ldb_msg_find_ldb_val(parent_res
->msgs
[0], "nTSecurityDescriptor");
685 schema
= dsdb_get_schema(ldb
, req
);
687 objectclass_element
= ldb_msg_find_element(current_res
->msgs
[0], "objectClass");
688 if (objectclass_element
== NULL
) {
689 return ldb_operr(ldb
);
692 objectclass
= dsdb_get_last_structural_class(schema
,
693 objectclass_element
);
694 if (objectclass
== NULL
) {
695 return ldb_operr(ldb
);
698 old_sd
= ldb_msg_find_ldb_val(current_res
->msgs
[0], "nTSecurityDescriptor");
700 sd
= get_new_descriptor(module
, dn
, req
,
701 objectclass
, parent_sd
,
702 user_sd
, old_sd
, sd_flags
);
704 return ldb_operr(ldb
);
706 msg
= ldb_msg_copy_shallow(req
, req
->op
.mod
.message
);
711 struct ldb_message_element
*sd_element
;
712 if (user_sd
!= NULL
) {
713 sd_element
= ldb_msg_find_element(msg
,
714 "nTSecurityDescriptor");
715 sd_element
->values
[0] = *sd
;
719 ret
= ldb_build_mod_req(&mod_req
, ldb
, req
,
725 LDB_REQ_SET_LOCATION(mod_req
);
726 if (ret
!= LDB_SUCCESS
) {
730 return ldb_next_request(module
, mod_req
);
733 static int descriptor_search(struct ldb_module
*module
, struct ldb_request
*req
)
736 struct ldb_context
*ldb
;
737 struct ldb_request
*down_req
;
738 struct descriptor_context
*ac
;
739 bool explicit_sd_flags
= false;
740 uint32_t sd_flags
= dsdb_request_sd_flags(req
, &explicit_sd_flags
);
741 bool show_sd
= explicit_sd_flags
;
744 ldb_attr_in_list(req
->op
.search
.attrs
, "nTSecurityDescriptor"))
750 return ldb_next_request(module
, req
);
753 ldb
= ldb_module_get_ctx(module
);
754 ac
= descriptor_init_context(module
, req
);
756 return ldb_operr(ldb
);
758 ac
->sd_flags
= sd_flags
;
760 ret
= ldb_build_search_req_ex(&down_req
, ldb
, ac
,
762 req
->op
.search
.scope
,
764 req
->op
.search
.attrs
,
766 ac
, descriptor_search_callback
,
768 LDB_REQ_SET_LOCATION(down_req
);
769 if (ret
!= LDB_SUCCESS
) {
773 return ldb_next_request(ac
->module
, down_req
);
776 static int descriptor_rename(struct ldb_module
*module
, struct ldb_request
*req
)
778 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
779 struct ldb_dn
*olddn
= req
->op
.rename
.olddn
;
781 /* do not manipulate our control entries */
782 if (ldb_dn_is_special(req
->op
.rename
.olddn
)) {
783 return ldb_next_request(module
, req
);
786 ldb_debug(ldb
, LDB_DEBUG_TRACE
,"descriptor_rename: %s\n",
787 ldb_dn_get_linearized(olddn
));
789 return ldb_next_request(module
, req
);
792 static int descriptor_init(struct ldb_module
*module
)
794 int ret
= ldb_mod_register_control(module
, LDB_CONTROL_SD_FLAGS_OID
);
795 struct ldb_context
*ldb
= ldb_module_get_ctx(module
);
796 if (ret
!= LDB_SUCCESS
) {
797 ldb_debug(ldb
, LDB_DEBUG_ERROR
,
798 "descriptor: Unable to register control with rootdse!\n");
799 return ldb_operr(ldb
);
801 return ldb_next_init(module
);
805 static const struct ldb_module_ops ldb_descriptor_module_ops
= {
806 .name
= "descriptor",
807 .search
= descriptor_search
,
808 .add
= descriptor_add
,
809 .modify
= descriptor_modify
,
810 .rename
= descriptor_rename
,
811 .init_context
= descriptor_init
814 int ldb_descriptor_module_init(const char *version
)
816 LDB_MODULE_CHECK_VERSION(version
);
817 return ldb_register_module(&ldb_descriptor_module_ops
);