2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Volker Lendecke 2004
8 Copyright (C) Stefan Metzmacher 2004
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "system/network.h"
26 #include "lib/events/events.h"
27 #include "auth/auth.h"
28 #include "auth/credentials/credentials.h"
29 #include "librpc/gen_ndr/ndr_samr.h"
30 #include "../lib/util/dlinklist.h"
31 #include "../lib/util/asn1.h"
32 #include "ldap_server/ldap_server.h"
33 #include "samba/service_task.h"
34 #include "samba/service_stream.h"
35 #include "samba/service.h"
36 #include "samba/process_model.h"
37 #include "lib/tls/tls.h"
38 #include "lib/messaging/irpc.h"
40 #include <ldb_errors.h>
41 #include "libcli/ldap/ldap_proto.h"
42 #include "system/network.h"
43 #include "lib/socket/netif.h"
44 #include "dsdb/samdb/samdb.h"
45 #include "param/param.h"
46 #include "../lib/tsocket/tsocket.h"
47 #include "../lib/util/tevent_ntstatus.h"
48 #include "../libcli/util/tstream.h"
49 #include "libds/common/roles.h"
50 #include "lib/util/time.h"
51 #include "lib/util/server_id.h"
52 #include "lib/util/server_id_db.h"
53 #include "lib/messaging/messaging_internal.h"
57 static void ldapsrv_terminate_connection_done(struct tevent_req
*subreq
);
60 close the socket and shutdown a server_context
62 static void ldapsrv_terminate_connection(struct ldapsrv_connection
*conn
,
65 struct tevent_req
*subreq
;
67 if (conn
->limits
.reason
) {
71 DLIST_REMOVE(conn
->service
->connections
, conn
);
73 conn
->limits
.endtime
= timeval_current_ofs(0, 500);
75 tevent_queue_stop(conn
->sockets
.send_queue
);
76 TALLOC_FREE(conn
->sockets
.read_req
);
77 TALLOC_FREE(conn
->deferred_expire_disconnect
);
78 if (conn
->active_call
) {
79 tevent_req_cancel(conn
->active_call
);
80 conn
->active_call
= NULL
;
83 conn
->limits
.reason
= talloc_strdup(conn
, reason
);
84 if (conn
->limits
.reason
== NULL
) {
85 TALLOC_FREE(conn
->sockets
.tls
);
86 TALLOC_FREE(conn
->sockets
.sasl
);
87 TALLOC_FREE(conn
->sockets
.raw
);
88 stream_terminate_connection(conn
->connection
, reason
);
92 subreq
= tstream_disconnect_send(conn
,
93 conn
->connection
->event
.ctx
,
94 conn
->sockets
.active
);
96 TALLOC_FREE(conn
->sockets
.tls
);
97 TALLOC_FREE(conn
->sockets
.sasl
);
98 TALLOC_FREE(conn
->sockets
.raw
);
99 stream_terminate_connection(conn
->connection
, reason
);
102 tevent_req_set_endtime(subreq
,
103 conn
->connection
->event
.ctx
,
104 conn
->limits
.endtime
);
105 tevent_req_set_callback(subreq
, ldapsrv_terminate_connection_done
, conn
);
108 static void ldapsrv_terminate_connection_done(struct tevent_req
*subreq
)
110 struct ldapsrv_connection
*conn
=
111 tevent_req_callback_data(subreq
,
112 struct ldapsrv_connection
);
116 tstream_disconnect_recv(subreq
, &sys_errno
);
119 if (conn
->sockets
.active
== conn
->sockets
.raw
) {
120 TALLOC_FREE(conn
->sockets
.tls
);
121 TALLOC_FREE(conn
->sockets
.sasl
);
122 TALLOC_FREE(conn
->sockets
.raw
);
123 stream_terminate_connection(conn
->connection
,
124 conn
->limits
.reason
);
128 TALLOC_FREE(conn
->sockets
.tls
);
129 TALLOC_FREE(conn
->sockets
.sasl
);
130 conn
->sockets
.active
= conn
->sockets
.raw
;
132 subreq
= tstream_disconnect_send(conn
,
133 conn
->connection
->event
.ctx
,
134 conn
->sockets
.active
);
135 if (subreq
== NULL
) {
136 TALLOC_FREE(conn
->sockets
.raw
);
137 stream_terminate_connection(conn
->connection
,
138 conn
->limits
.reason
);
141 ok
= tevent_req_set_endtime(subreq
,
142 conn
->connection
->event
.ctx
,
143 conn
->limits
.endtime
);
145 TALLOC_FREE(conn
->sockets
.raw
);
146 stream_terminate_connection(conn
->connection
,
147 conn
->limits
.reason
);
150 tevent_req_set_callback(subreq
, ldapsrv_terminate_connection_done
, conn
);
154 called when a LDAP socket becomes readable
156 void ldapsrv_recv(struct stream_connection
*c
, uint16_t flags
)
158 smb_panic(__location__
);
162 called when a LDAP socket becomes writable
164 static void ldapsrv_send(struct stream_connection
*c
, uint16_t flags
)
166 smb_panic(__location__
);
169 static int ldapsrv_load_limits(struct ldapsrv_connection
*conn
)
172 const char *attrs
[] = { "configurationNamingContext", NULL
};
173 const char *attrs2
[] = { "lDAPAdminLimits", NULL
};
174 struct ldb_message_element
*el
;
175 struct ldb_result
*res
= NULL
;
176 struct ldb_dn
*basedn
;
177 struct ldb_dn
*conf_dn
;
178 struct ldb_dn
*policy_dn
;
182 /* set defaults limits in case of failure */
183 conn
->limits
.initial_timeout
= 120;
184 conn
->limits
.conn_idle_time
= 900;
185 conn
->limits
.max_page_size
= 1000;
186 conn
->limits
.max_notifications
= 5;
187 conn
->limits
.search_timeout
= 120;
188 conn
->limits
.expire_time
= (struct timeval
) {
189 .tv_sec
= get_time_t_max(),
193 tmp_ctx
= talloc_new(conn
);
194 if (tmp_ctx
== NULL
) {
198 basedn
= ldb_dn_new(tmp_ctx
, conn
->ldb
, NULL
);
199 if (basedn
== NULL
) {
203 ret
= ldb_search(conn
->ldb
, tmp_ctx
, &res
, basedn
, LDB_SCOPE_BASE
, attrs
, NULL
);
204 if (ret
!= LDB_SUCCESS
) {
208 if (res
->count
!= 1) {
212 conf_dn
= ldb_msg_find_attr_as_dn(conn
->ldb
, tmp_ctx
, res
->msgs
[0], "configurationNamingContext");
213 if (conf_dn
== NULL
) {
217 policy_dn
= ldb_dn_copy(tmp_ctx
, conf_dn
);
218 ldb_dn_add_child_fmt(policy_dn
, "CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=Windows NT,CN=Services");
219 if (policy_dn
== NULL
) {
223 ret
= ldb_search(conn
->ldb
, tmp_ctx
, &res
, policy_dn
, LDB_SCOPE_BASE
, attrs2
, NULL
);
224 if (ret
!= LDB_SUCCESS
) {
228 if (res
->count
!= 1) {
232 el
= ldb_msg_find_element(res
->msgs
[0], "lDAPAdminLimits");
237 for (i
= 0; i
< el
->num_values
; i
++) {
238 char policy_name
[256];
241 s
= sscanf((const char *)el
->values
[i
].data
, "%255[^=]=%d", policy_name
, &policy_value
);
242 if (s
!= 2 || policy_value
== 0)
244 if (strcasecmp("InitRecvTimeout", policy_name
) == 0) {
245 conn
->limits
.initial_timeout
= policy_value
;
248 if (strcasecmp("MaxConnIdleTime", policy_name
) == 0) {
249 conn
->limits
.conn_idle_time
= policy_value
;
252 if (strcasecmp("MaxPageSize", policy_name
) == 0) {
253 conn
->limits
.max_page_size
= policy_value
;
256 if (strcasecmp("MaxNotificationPerConn", policy_name
) == 0) {
257 conn
->limits
.max_notifications
= policy_value
;
260 if (strcasecmp("MaxQueryDuration", policy_name
) == 0) {
261 if (policy_value
> 0) {
262 conn
->limits
.search_timeout
= policy_value
;
271 DBG_ERR("Failed to load ldap server query policies\n");
272 talloc_free(tmp_ctx
);
276 static int ldapsrv_call_destructor(struct ldapsrv_call
*call
)
278 if (call
->conn
== NULL
) {
282 DLIST_REMOVE(call
->conn
->pending_calls
, call
);
288 static struct tevent_req
*ldapsrv_process_call_send(TALLOC_CTX
*mem_ctx
,
289 struct tevent_context
*ev
,
290 struct tevent_queue
*call_queue
,
291 struct ldapsrv_call
*call
);
292 static NTSTATUS
ldapsrv_process_call_recv(struct tevent_req
*req
);
294 static bool ldapsrv_call_read_next(struct ldapsrv_connection
*conn
);
295 static void ldapsrv_accept_tls_done(struct tevent_req
*subreq
);
298 initialise a server_context from a open socket and register a event handler
299 for reading from that socket
301 static void ldapsrv_accept(struct stream_connection
*c
,
302 struct auth_session_info
*session_info
,
305 struct ldapsrv_service
*ldapsrv_service
=
306 talloc_get_type(c
->private_data
, struct ldapsrv_service
);
307 struct ldapsrv_connection
*conn
;
308 struct cli_credentials
*server_credentials
;
309 struct socket_address
*socket_address
;
312 struct tevent_req
*subreq
;
313 struct timeval endtime
;
314 char *errstring
= NULL
;
316 conn
= talloc_zero(c
, struct ldapsrv_connection
);
318 stream_terminate_connection(c
, "ldapsrv_accept: out of memory");
321 conn
->is_privileged
= is_privileged
;
323 conn
->sockets
.send_queue
= tevent_queue_create(conn
, "ldapsev send queue");
324 if (conn
->sockets
.send_queue
== NULL
) {
325 stream_terminate_connection(c
,
326 "ldapsrv_accept: tevent_queue_create failed");
330 TALLOC_FREE(c
->event
.fde
);
332 ret
= tstream_bsd_existing_socket(conn
,
333 socket_get_fd(c
->socket
),
336 stream_terminate_connection(c
,
337 "ldapsrv_accept: out of memory");
340 socket_set_flags(c
->socket
, SOCKET_FLAG_NOCLOSE
);
341 /* as server we want to fail early */
342 tstream_bsd_fail_readv_first_error(conn
->sockets
.raw
, true);
344 conn
->connection
= c
;
345 conn
->service
= ldapsrv_service
;
346 conn
->lp_ctx
= ldapsrv_service
->lp_ctx
;
348 c
->private_data
= conn
;
350 socket_address
= socket_get_my_addr(c
->socket
, conn
);
351 if (!socket_address
) {
352 ldapsrv_terminate_connection(conn
, "ldapsrv_accept: failed to obtain local socket address!");
355 port
= socket_address
->port
;
356 talloc_free(socket_address
);
357 if (port
== 3268 || port
== 3269) /* Global catalog */ {
358 conn
->global_catalog
= true;
361 server_credentials
= cli_credentials_init_server(conn
, conn
->lp_ctx
);
362 if (!server_credentials
) {
363 stream_terminate_connection(c
, "Failed to init server credentials\n");
367 conn
->server_credentials
= server_credentials
;
369 conn
->session_info
= session_info
;
371 conn
->sockets
.active
= conn
->sockets
.raw
;
373 if (conn
->is_privileged
) {
374 conn
->require_strong_auth
= LDAP_SERVER_REQUIRE_STRONG_AUTH_NO
;
376 conn
->require_strong_auth
= lpcfg_ldap_server_require_strong_auth(conn
->lp_ctx
);
379 ret
= ldapsrv_backend_Init(conn
, &errstring
);
380 if (ret
!= LDB_SUCCESS
) {
381 char *reason
= talloc_asprintf(conn
,
382 "LDB backend for LDAP Init "
384 errstring
, ldb_strerror(ret
));
385 ldapsrv_terminate_connection(conn
, reason
);
389 /* load limits from the conf partition */
390 ldapsrv_load_limits(conn
); /* should we fail on error ? */
392 /* register the server */
393 irpc_add_name(c
->msg_ctx
, "ldap_server");
395 DLIST_ADD_END(ldapsrv_service
->connections
, conn
);
397 if (port
!= 636 && port
!= 3269) {
398 ldapsrv_call_read_next(conn
);
402 endtime
= timeval_current_ofs(conn
->limits
.conn_idle_time
, 0);
404 subreq
= tstream_tls_accept_send(conn
,
405 conn
->connection
->event
.ctx
,
407 conn
->service
->tls_params
);
408 if (subreq
== NULL
) {
409 ldapsrv_terminate_connection(conn
, "ldapsrv_accept: "
410 "no memory for tstream_tls_accept_send");
413 tevent_req_set_endtime(subreq
,
414 conn
->connection
->event
.ctx
,
416 tevent_req_set_callback(subreq
, ldapsrv_accept_tls_done
, conn
);
419 static void ldapsrv_accept_tls_done(struct tevent_req
*subreq
)
421 struct ldapsrv_connection
*conn
=
422 tevent_req_callback_data(subreq
,
423 struct ldapsrv_connection
);
427 ret
= tstream_tls_accept_recv(subreq
, &sys_errno
,
428 conn
, &conn
->sockets
.tls
);
433 reason
= talloc_asprintf(conn
, "ldapsrv_accept_tls_loop: "
434 "tstream_tls_accept_recv() - %d:%s",
435 sys_errno
, strerror(sys_errno
));
437 reason
= "ldapsrv_accept_tls_loop: "
438 "tstream_tls_accept_recv() - failed";
441 ldapsrv_terminate_connection(conn
, reason
);
445 conn
->sockets
.active
= conn
->sockets
.tls
;
446 conn
->referral_scheme
= LDAP_REFERRAL_SCHEME_LDAPS
;
447 ldapsrv_call_read_next(conn
);
450 static void ldapsrv_call_read_done(struct tevent_req
*subreq
);
451 static NTSTATUS
ldapsrv_packet_check(
452 struct tstream_context
*stream
,
455 size_t *packet_size
);
457 static bool ldapsrv_call_read_next(struct ldapsrv_connection
*conn
)
459 struct tevent_req
*subreq
;
461 if (conn
->pending_calls
!= NULL
) {
462 conn
->limits
.endtime
= timeval_zero();
464 ldapsrv_notification_retry_setup(conn
->service
, false);
465 } else if (timeval_is_zero(&conn
->limits
.endtime
)) {
466 conn
->limits
.endtime
=
467 timeval_current_ofs(conn
->limits
.initial_timeout
, 0);
469 conn
->limits
.endtime
=
470 timeval_current_ofs(conn
->limits
.conn_idle_time
, 0);
473 if (conn
->sockets
.read_req
!= NULL
) {
478 * The minimum size of a LDAP pdu is 7 bytes
480 * dumpasn1 -hh ldap-unbind-min.dat
482 * <30 05 02 01 09 42 00>
487 * 5 0: [APPLICATION 2]
488 * : Error: Object has zero length.
491 * dumpasn1 -hh ldap-unbind-windows.dat
493 * <30 84 00 00 00 05 02 01 09 42 00>
498 * 9 0: [APPLICATION 2]
499 * : Error: Object has zero length.
502 * This means using an initial read size
505 subreq
= tstream_read_pdu_blob_send(conn
,
506 conn
->connection
->event
.ctx
,
507 conn
->sockets
.active
,
508 7, /* initial_read_size */
509 ldapsrv_packet_check
,
511 if (subreq
== NULL
) {
512 ldapsrv_terminate_connection(conn
, "ldapsrv_call_read_next: "
513 "no memory for tstream_read_pdu_blob_send");
516 if (!timeval_is_zero(&conn
->limits
.endtime
)) {
518 ok
= tevent_req_set_endtime(subreq
,
519 conn
->connection
->event
.ctx
,
520 conn
->limits
.endtime
);
522 ldapsrv_terminate_connection(
524 "ldapsrv_call_read_next: "
525 "no memory for tevent_req_set_endtime");
529 tevent_req_set_callback(subreq
, ldapsrv_call_read_done
, conn
);
530 conn
->sockets
.read_req
= subreq
;
534 static void ldapsrv_call_process_done(struct tevent_req
*subreq
);
535 static int ldapsrv_check_packet_size(
536 struct ldapsrv_connection
*conn
,
539 static void ldapsrv_call_read_done(struct tevent_req
*subreq
)
541 struct ldapsrv_connection
*conn
=
542 tevent_req_callback_data(subreq
,
543 struct ldapsrv_connection
);
545 struct ldapsrv_call
*call
;
546 struct asn1_data
*asn1
;
548 int ret
= LDAP_SUCCESS
;
549 struct ldap_request_limits limits
= {0};
551 conn
->sockets
.read_req
= NULL
;
553 call
= talloc_zero(conn
, struct ldapsrv_call
);
555 ldapsrv_terminate_connection(conn
, "no memory");
558 talloc_set_destructor(call
, ldapsrv_call_destructor
);
562 status
= tstream_read_pdu_blob_recv(subreq
,
566 if (!NT_STATUS_IS_OK(status
)) {
569 reason
= talloc_asprintf(call
, "ldapsrv_call_loop: "
570 "tstream_read_pdu_blob_recv() - %s",
573 reason
= nt_errstr(status
);
576 ldapsrv_terminate_connection(conn
, reason
);
580 ret
= ldapsrv_check_packet_size(conn
, blob
.length
);
581 if (ret
!= LDAP_SUCCESS
) {
582 ldapsrv_terminate_connection(
584 "Request packet too large");
588 asn1
= asn1_init(call
, ASN1_MAX_TREE_DEPTH
);
590 ldapsrv_terminate_connection(conn
, "no memory");
594 call
->request
= talloc(call
, struct ldap_message
);
595 if (call
->request
== NULL
) {
596 ldapsrv_terminate_connection(conn
, "no memory");
600 asn1_load_nocopy(asn1
, blob
.data
, blob
.length
);
602 limits
.max_search_size
=
603 lpcfg_ldap_max_search_request_size(conn
->lp_ctx
);
604 status
= ldap_decode(
607 samba_ldap_control_handlers(),
609 if (!NT_STATUS_IS_OK(status
)) {
610 ldapsrv_terminate_connection(conn
, nt_errstr(status
));
614 data_blob_free(&blob
);
618 /* queue the call in the global queue */
619 subreq
= ldapsrv_process_call_send(call
,
620 conn
->connection
->event
.ctx
,
621 conn
->service
->call_queue
,
623 if (subreq
== NULL
) {
624 ldapsrv_terminate_connection(conn
, "ldapsrv_process_call_send failed");
627 tevent_req_set_callback(subreq
, ldapsrv_call_process_done
, call
);
628 conn
->active_call
= subreq
;
631 static void ldapsrv_call_wait_done(struct tevent_req
*subreq
);
632 static void ldapsrv_call_writev_start(struct ldapsrv_call
*call
);
633 static void ldapsrv_call_writev_done(struct tevent_req
*subreq
);
635 static void ldapsrv_call_process_done(struct tevent_req
*subreq
)
637 struct ldapsrv_call
*call
=
638 tevent_req_callback_data(subreq
,
639 struct ldapsrv_call
);
640 struct ldapsrv_connection
*conn
= call
->conn
;
643 conn
->active_call
= NULL
;
645 status
= ldapsrv_process_call_recv(subreq
);
647 if (!NT_STATUS_IS_OK(status
)) {
648 ldapsrv_terminate_connection(conn
, nt_errstr(status
));
652 if (call
->wait_send
!= NULL
) {
653 subreq
= call
->wait_send(call
,
654 conn
->connection
->event
.ctx
,
656 if (subreq
== NULL
) {
657 ldapsrv_terminate_connection(conn
,
658 "ldapsrv_call_process_done: "
659 "call->wait_send - no memory");
662 tevent_req_set_callback(subreq
,
663 ldapsrv_call_wait_done
,
665 conn
->active_call
= subreq
;
669 ldapsrv_call_writev_start(call
);
672 static void ldapsrv_call_wait_done(struct tevent_req
*subreq
)
674 struct ldapsrv_call
*call
=
675 tevent_req_callback_data(subreq
,
676 struct ldapsrv_call
);
677 struct ldapsrv_connection
*conn
= call
->conn
;
680 conn
->active_call
= NULL
;
682 status
= call
->wait_recv(subreq
);
684 if (!NT_STATUS_IS_OK(status
)) {
687 reason
= talloc_asprintf(call
, "ldapsrv_call_wait_done: "
688 "call->wait_recv() - %s",
690 if (reason
== NULL
) {
691 reason
= nt_errstr(status
);
694 ldapsrv_terminate_connection(conn
, reason
);
698 ldapsrv_call_writev_start(call
);
701 static void ldapsrv_call_writev_start(struct ldapsrv_call
*call
)
703 struct ldapsrv_connection
*conn
= call
->conn
;
704 struct ldapsrv_reply
*reply
= NULL
;
705 struct tevent_req
*subreq
= NULL
;
706 struct timeval endtime
;
712 /* build all the replies into an IOV (no copy) */
713 for (reply
= call
->replies
;
715 reply
= reply
->next
) {
717 /* Cap output at 25MB per writev() */
718 if (length
> length
+ reply
->blob
.length
719 || length
+ reply
->blob
.length
> LDAP_SERVER_MAX_CHUNK_SIZE
) {
724 * Overflow is harmless here, just used below to
725 * decide if to read or write, but checked above anyway
727 length
+= reply
->blob
.length
;
730 * At worst an overflow would mean we send less
737 if (!call
->notification
.busy
) {
741 ldapsrv_call_read_next(conn
);
745 /* Cap call->iov_count at IOV_MAX */
746 call
->iov_count
= MIN(call
->iov_count
, IOV_MAX
);
748 call
->out_iov
= talloc_array(call
,
751 if (!call
->out_iov
) {
752 /* This is not ideal */
753 ldapsrv_terminate_connection(conn
,
754 "failed to allocate "
759 /* We may have had to cap the number of replies at IOV_MAX */
761 i
< call
->iov_count
&& call
->replies
!= NULL
;
763 reply
= call
->replies
;
764 call
->out_iov
[i
].iov_base
= reply
->blob
.data
;
765 call
->out_iov
[i
].iov_len
= reply
->blob
.length
;
767 /* Keep only the ASN.1 encoded data */
768 talloc_steal(call
->out_iov
, reply
->blob
.data
);
770 DLIST_REMOVE(call
->replies
, reply
);
774 if (i
> call
->iov_count
) {
775 /* This is not ideal, but also (essentially) impossible */
776 ldapsrv_terminate_connection(conn
,
782 subreq
= tstream_writev_queue_send(call
,
783 conn
->connection
->event
.ctx
,
784 conn
->sockets
.active
,
785 conn
->sockets
.send_queue
,
786 call
->out_iov
, call
->iov_count
);
787 if (subreq
== NULL
) {
788 ldapsrv_terminate_connection(conn
, "stream_writev_queue_send failed");
791 endtime
= timeval_current_ofs(conn
->limits
.conn_idle_time
, 0);
792 tevent_req_set_endtime(subreq
,
793 conn
->connection
->event
.ctx
,
795 tevent_req_set_callback(subreq
, ldapsrv_call_writev_done
, call
);
798 static void ldapsrv_call_postprocess_done(struct tevent_req
*subreq
);
800 static void ldapsrv_call_writev_done(struct tevent_req
*subreq
)
802 struct ldapsrv_call
*call
=
803 tevent_req_callback_data(subreq
,
804 struct ldapsrv_call
);
805 struct ldapsrv_connection
*conn
= call
->conn
;
809 rc
= tstream_writev_queue_recv(subreq
, &sys_errno
);
812 /* This releases the ASN.1 encoded packets from memory */
813 TALLOC_FREE(call
->out_iov
);
817 reason
= talloc_asprintf(call
, "ldapsrv_call_writev_done: "
818 "tstream_writev_queue_recv() - %d:%s",
819 sys_errno
, strerror(sys_errno
));
820 if (reason
== NULL
) {
821 reason
= "ldapsrv_call_writev_done: "
822 "tstream_writev_queue_recv() failed";
825 ldapsrv_terminate_connection(conn
, reason
);
829 if (call
->postprocess_send
) {
830 subreq
= call
->postprocess_send(call
,
831 conn
->connection
->event
.ctx
,
832 call
->postprocess_private
);
833 if (subreq
== NULL
) {
834 ldapsrv_terminate_connection(conn
, "ldapsrv_call_writev_done: "
835 "call->postprocess_send - no memory");
838 tevent_req_set_callback(subreq
,
839 ldapsrv_call_postprocess_done
,
844 /* Perhaps still some more to send */
845 if (call
->replies
!= NULL
) {
846 ldapsrv_call_writev_start(call
);
850 if (!call
->notification
.busy
) {
854 ldapsrv_call_read_next(conn
);
857 static void ldapsrv_call_postprocess_done(struct tevent_req
*subreq
)
859 struct ldapsrv_call
*call
=
860 tevent_req_callback_data(subreq
,
861 struct ldapsrv_call
);
862 struct ldapsrv_connection
*conn
= call
->conn
;
865 status
= call
->postprocess_recv(subreq
);
867 if (!NT_STATUS_IS_OK(status
)) {
870 reason
= talloc_asprintf(call
, "ldapsrv_call_postprocess_done: "
871 "call->postprocess_recv() - %s",
873 if (reason
== NULL
) {
874 reason
= nt_errstr(status
);
877 ldapsrv_terminate_connection(conn
, reason
);
883 ldapsrv_call_read_next(conn
);
886 static void ldapsrv_notification_retry_done(struct tevent_req
*subreq
);
888 void ldapsrv_notification_retry_setup(struct ldapsrv_service
*service
, bool force
)
890 struct ldapsrv_connection
*conn
= NULL
;
891 struct timeval retry
;
892 size_t num_pending
= 0;
893 size_t num_active
= 0;
896 TALLOC_FREE(service
->notification
.retry
);
897 service
->notification
.generation
+= 1;
900 if (service
->notification
.retry
!= NULL
) {
904 for (conn
= service
->connections
; conn
!= NULL
; conn
= conn
->next
) {
905 if (conn
->pending_calls
== NULL
) {
911 if (conn
->pending_calls
->notification
.generation
!=
912 service
->notification
.generation
)
918 if (num_pending
== 0) {
922 if (num_active
!= 0) {
923 retry
= timeval_current_ofs(0, 100);
925 retry
= timeval_current_ofs(5, 0);
928 service
->notification
.retry
= tevent_wakeup_send(service
,
931 if (service
->notification
.retry
== NULL
) {
936 tevent_req_set_callback(service
->notification
.retry
,
937 ldapsrv_notification_retry_done
,
941 static void ldapsrv_notification_retry_done(struct tevent_req
*subreq
)
943 struct ldapsrv_service
*service
=
944 tevent_req_callback_data(subreq
,
945 struct ldapsrv_service
);
946 struct ldapsrv_connection
*conn
= NULL
;
947 struct ldapsrv_connection
*conn_next
= NULL
;
950 service
->notification
.retry
= NULL
;
952 ok
= tevent_wakeup_recv(subreq
);
958 for (conn
= service
->connections
; conn
!= NULL
; conn
= conn_next
) {
959 struct ldapsrv_call
*call
= conn
->pending_calls
;
961 conn_next
= conn
->next
;
963 if (conn
->pending_calls
== NULL
) {
967 if (conn
->active_call
!= NULL
) {
971 DLIST_DEMOTE(conn
->pending_calls
, call
);
972 call
->notification
.generation
=
973 service
->notification
.generation
;
975 /* queue the call in the global queue */
976 subreq
= ldapsrv_process_call_send(call
,
977 conn
->connection
->event
.ctx
,
978 conn
->service
->call_queue
,
980 if (subreq
== NULL
) {
981 ldapsrv_terminate_connection(conn
,
982 "ldapsrv_process_call_send failed");
985 tevent_req_set_callback(subreq
, ldapsrv_call_process_done
, call
);
986 conn
->active_call
= subreq
;
989 ldapsrv_notification_retry_setup(service
, false);
992 struct ldapsrv_process_call_state
{
993 struct ldapsrv_call
*call
;
996 static void ldapsrv_process_call_trigger(struct tevent_req
*req
,
999 static struct tevent_req
*ldapsrv_process_call_send(TALLOC_CTX
*mem_ctx
,
1000 struct tevent_context
*ev
,
1001 struct tevent_queue
*call_queue
,
1002 struct ldapsrv_call
*call
)
1004 struct tevent_req
*req
;
1005 struct ldapsrv_process_call_state
*state
;
1008 req
= tevent_req_create(mem_ctx
, &state
,
1009 struct ldapsrv_process_call_state
);
1016 ok
= tevent_queue_add(call_queue
, ev
, req
,
1017 ldapsrv_process_call_trigger
, NULL
);
1019 tevent_req_oom(req
);
1020 return tevent_req_post(req
, ev
);
1026 static void ldapsrv_disconnect_ticket_expired(struct tevent_req
*subreq
);
1028 static void ldapsrv_process_call_trigger(struct tevent_req
*req
,
1031 struct ldapsrv_process_call_state
*state
=
1032 tevent_req_data(req
,
1033 struct ldapsrv_process_call_state
);
1034 struct ldapsrv_connection
*conn
= state
->call
->conn
;
1037 if (conn
->deferred_expire_disconnect
!= NULL
) {
1039 * Just drop this on the floor
1041 tevent_req_done(req
);
1046 status
= ldapsrv_do_call(state
->call
);
1048 if (NT_STATUS_EQUAL(status
, NT_STATUS_NETWORK_SESSION_EXPIRED
)) {
1050 * For testing purposes, defer the TCP disconnect
1051 * after having sent the msgid 0
1052 * 1.3.6.1.4.1.1466.20036 exop response. LDAP clients
1053 * should not wait for the TCP connection to close but
1054 * handle this packet equivalent to a TCP
1055 * disconnect. This delay enables testing both cases
1056 * in LDAP client libraries.
1059 int defer_msec
= lpcfg_parm_int(
1063 "delay_expire_disconnect",
1066 conn
->deferred_expire_disconnect
= tevent_wakeup_send(
1068 conn
->connection
->event
.ctx
,
1069 timeval_current_ofs_msec(defer_msec
));
1070 if (tevent_req_nomem(conn
->deferred_expire_disconnect
, req
)) {
1073 tevent_req_set_callback(
1074 conn
->deferred_expire_disconnect
,
1075 ldapsrv_disconnect_ticket_expired
,
1078 tevent_req_done(req
);
1082 if (!NT_STATUS_IS_OK(status
)) {
1083 tevent_req_nterror(req
, status
);
1087 tevent_req_done(req
);
1090 static void ldapsrv_disconnect_ticket_expired(struct tevent_req
*subreq
)
1092 struct ldapsrv_connection
*conn
= tevent_req_callback_data(
1093 subreq
, struct ldapsrv_connection
);
1096 ok
= tevent_wakeup_recv(subreq
);
1097 TALLOC_FREE(subreq
);
1099 DBG_WARNING("tevent_wakeup_recv failed\n");
1101 conn
->deferred_expire_disconnect
= NULL
;
1102 ldapsrv_terminate_connection(conn
, "network session expired");
1105 static NTSTATUS
ldapsrv_process_call_recv(struct tevent_req
*req
)
1109 if (tevent_req_is_nterror(req
, &status
)) {
1110 tevent_req_received(req
);
1114 tevent_req_received(req
);
1115 return NT_STATUS_OK
;
1118 static void ldapsrv_accept_nonpriv(struct stream_connection
*c
)
1120 struct ldapsrv_service
*ldapsrv_service
= talloc_get_type_abort(
1121 c
->private_data
, struct ldapsrv_service
);
1122 struct auth_session_info
*session_info
;
1125 status
= auth_anonymous_session_info(
1126 c
, ldapsrv_service
->lp_ctx
, &session_info
);
1127 if (!NT_STATUS_IS_OK(status
)) {
1128 stream_terminate_connection(c
, "failed to setup anonymous "
1132 ldapsrv_accept(c
, session_info
, false);
1135 static const struct stream_server_ops ldap_stream_nonpriv_ops
= {
1137 .accept_connection
= ldapsrv_accept_nonpriv
,
1138 .recv_handler
= ldapsrv_recv
,
1139 .send_handler
= ldapsrv_send
,
1142 /* The feature removed behind an #ifdef until we can do it properly
1143 * with an EXTERNAL bind. */
1145 #define WITH_LDAPI_PRIV_SOCKET
1147 #ifdef WITH_LDAPI_PRIV_SOCKET
1148 static void ldapsrv_accept_priv(struct stream_connection
*c
)
1150 struct ldapsrv_service
*ldapsrv_service
= talloc_get_type_abort(
1151 c
->private_data
, struct ldapsrv_service
);
1152 struct auth_session_info
*session_info
;
1154 session_info
= system_session(ldapsrv_service
->lp_ctx
);
1155 if (!session_info
) {
1156 stream_terminate_connection(c
, "failed to setup system "
1160 ldapsrv_accept(c
, session_info
, true);
1163 static const struct stream_server_ops ldap_stream_priv_ops
= {
1165 .accept_connection
= ldapsrv_accept_priv
,
1166 .recv_handler
= ldapsrv_recv
,
1167 .send_handler
= ldapsrv_send
,
1174 add a socket address to the list of events, one event per port
1176 static NTSTATUS
add_socket(struct task_server
*task
,
1177 struct loadparm_context
*lp_ctx
,
1178 const struct model_ops
*model_ops
,
1179 const char *address
, struct ldapsrv_service
*ldap_service
)
1181 uint16_t port
= 389;
1183 struct ldb_context
*ldb
;
1185 status
= stream_setup_socket(task
, task
->event_ctx
, lp_ctx
,
1186 model_ops
, &ldap_stream_nonpriv_ops
,
1187 "ip", address
, &port
,
1188 lpcfg_socket_options(lp_ctx
),
1189 ldap_service
, task
->process_context
);
1190 if (!NT_STATUS_IS_OK(status
)) {
1191 DBG_ERR("ldapsrv failed to bind to %s:%u - %s\n",
1192 address
, port
, nt_errstr(status
));
1196 if (tstream_tls_params_enabled(ldap_service
->tls_params
)) {
1197 /* add ldaps server */
1199 status
= stream_setup_socket(task
, task
->event_ctx
, lp_ctx
,
1201 &ldap_stream_nonpriv_ops
,
1202 "ip", address
, &port
,
1203 lpcfg_socket_options(lp_ctx
),
1205 task
->process_context
);
1206 if (!NT_STATUS_IS_OK(status
)) {
1207 DBG_ERR("ldapsrv failed to bind to %s:%u - %s\n",
1208 address
, port
, nt_errstr(status
));
1213 /* Load LDAP database, but only to read our settings */
1214 ldb
= samdb_connect(ldap_service
,
1215 ldap_service
->current_ev
,
1217 system_session(lp_ctx
),
1221 return NT_STATUS_INTERNAL_DB_CORRUPTION
;
1224 if (samdb_is_gc(ldb
)) {
1226 status
= stream_setup_socket(task
, task
->event_ctx
, lp_ctx
,
1228 &ldap_stream_nonpriv_ops
,
1229 "ip", address
, &port
,
1230 lpcfg_socket_options(lp_ctx
),
1232 task
->process_context
);
1233 if (!NT_STATUS_IS_OK(status
)) {
1234 DBG_ERR("ldapsrv failed to bind to %s:%u - %s\n",
1235 address
, port
, nt_errstr(status
));
1238 if (tstream_tls_params_enabled(ldap_service
->tls_params
)) {
1239 /* add ldaps server for the global catalog */
1241 status
= stream_setup_socket(task
, task
->event_ctx
, lp_ctx
,
1243 &ldap_stream_nonpriv_ops
,
1244 "ip", address
, &port
,
1245 lpcfg_socket_options(lp_ctx
),
1247 task
->process_context
);
1248 if (!NT_STATUS_IS_OK(status
)) {
1249 DBG_ERR("ldapsrv failed to bind to %s:%u - %s\n",
1250 address
, port
, nt_errstr(status
));
1256 /* And once we are bound, free the temporary ldb, it will
1257 * connect again on each incoming LDAP connection */
1258 talloc_unlink(ldap_service
, ldb
);
1260 return NT_STATUS_OK
;
1263 static void ldap_reload_certs(struct imessaging_context
*msg_ctx
,
1266 struct server_id server_id
,
1271 TALLOC_CTX
*frame
= talloc_stackframe();
1272 struct ldapsrv_service
*ldap_service
=
1273 talloc_get_type_abort(private_data
,
1274 struct ldapsrv_service
);
1275 int default_children
;
1279 struct server_id ldap_master_id
;
1281 struct tstream_tls_params
*new_tls_params
= NULL
;
1283 SMB_ASSERT(msg_ctx
== ldap_service
->current_msg
);
1285 /* reload certificates */
1286 status
= tstream_tls_params_server(ldap_service
,
1287 ldap_service
->dns_host_name
,
1288 lpcfg_tls_enabled(ldap_service
->lp_ctx
),
1289 lpcfg_tls_keyfile(frame
, ldap_service
->lp_ctx
),
1290 lpcfg_tls_certfile(frame
, ldap_service
->lp_ctx
),
1291 lpcfg_tls_cafile(frame
, ldap_service
->lp_ctx
),
1292 lpcfg_tls_crlfile(frame
, ldap_service
->lp_ctx
),
1293 lpcfg_tls_dhpfile(frame
, ldap_service
->lp_ctx
),
1294 lpcfg_tls_priority(ldap_service
->lp_ctx
),
1296 if (!NT_STATUS_IS_OK(status
)) {
1297 DBG_ERR("ldapsrv failed tstream_tls_params_server - %s\n",
1303 TALLOC_FREE(ldap_service
->tls_params
);
1304 ldap_service
->tls_params
= new_tls_params
;
1306 if (getpid() != ldap_service
->parent_pid
) {
1308 * If we are not the master process we are done
1315 * Check we're running under the prefork model,
1316 * by checking if the prefork-master-ldap name
1319 ok
= server_id_db_lookup_one(msg_ctx
->names
, "prefork-master-ldap", &ldap_master_id
);
1322 * We are done if another process model is in use.
1329 * Now we loop over all possible prefork workers
1330 * in order to notify them about the reload
1332 default_children
= lpcfg_prefork_children(ldap_service
->lp_ctx
);
1333 num_children
= lpcfg_parm_int(ldap_service
->lp_ctx
,
1334 NULL
, "prefork children", "ldap",
1336 for (i
= 0; i
< num_children
; i
++) {
1337 char child_name
[64] = { 0, };
1338 struct server_id ldap_worker_id
;
1340 snprintf(child_name
, sizeof(child_name
), "prefork-worker-ldap-%d", i
);
1341 ok
= server_id_db_lookup_one(msg_ctx
->names
, child_name
, &ldap_worker_id
);
1343 DBG_ERR("server_id_db_lookup_one(%s) - failed\n",
1348 status
= imessaging_send(msg_ctx
, ldap_worker_id
,
1349 MSG_RELOAD_TLS_CERTIFICATES
, NULL
);
1350 if (!NT_STATUS_IS_OK(status
)) {
1351 struct server_id_buf id_buf
;
1352 DBG_ERR("ldapsrv failed imessaging_send(%s, %s) - %s\n",
1354 server_id_str_buf(ldap_worker_id
, &id_buf
),
1364 open the ldap server sockets
1366 static NTSTATUS
ldapsrv_task_init(struct task_server
*task
)
1369 #ifdef WITH_LDAPI_PRIV_SOCKET
1372 struct ldapsrv_service
*ldap_service
;
1375 switch (lpcfg_server_role(task
->lp_ctx
)) {
1376 case ROLE_STANDALONE
:
1377 task_server_terminate(task
, "ldap_server: no LDAP server required in standalone configuration",
1379 return NT_STATUS_INVALID_DOMAIN_ROLE
;
1380 case ROLE_DOMAIN_MEMBER
:
1381 task_server_terminate(task
, "ldap_server: no LDAP server required in member server configuration",
1383 return NT_STATUS_INVALID_DOMAIN_ROLE
;
1384 case ROLE_ACTIVE_DIRECTORY_DC
:
1385 /* Yes, we want an LDAP server */
1389 task_server_set_title(task
, "task[ldapsrv]");
1391 ldap_service
= talloc_zero(task
, struct ldapsrv_service
);
1392 if (ldap_service
== NULL
) {
1393 status
= NT_STATUS_NO_MEMORY
;
1397 ldap_service
->lp_ctx
= task
->lp_ctx
;
1398 ldap_service
->current_ev
= task
->event_ctx
;
1399 ldap_service
->current_msg
= task
->msg_ctx
;
1401 ldap_service
->dns_host_name
= talloc_asprintf(ldap_service
, "%s.%s",
1402 lpcfg_netbios_name(task
->lp_ctx
),
1403 lpcfg_dnsdomain(task
->lp_ctx
));
1404 if (ldap_service
->dns_host_name
== NULL
) {
1405 status
= NT_STATUS_NO_MEMORY
;
1409 ldap_service
->parent_pid
= getpid();
1411 status
= tstream_tls_params_server(ldap_service
,
1412 ldap_service
->dns_host_name
,
1413 lpcfg_tls_enabled(task
->lp_ctx
),
1414 lpcfg_tls_keyfile(ldap_service
, task
->lp_ctx
),
1415 lpcfg_tls_certfile(ldap_service
, task
->lp_ctx
),
1416 lpcfg_tls_cafile(ldap_service
, task
->lp_ctx
),
1417 lpcfg_tls_crlfile(ldap_service
, task
->lp_ctx
),
1418 lpcfg_tls_dhpfile(ldap_service
, task
->lp_ctx
),
1419 lpcfg_tls_priority(task
->lp_ctx
),
1420 &ldap_service
->tls_params
);
1421 if (!NT_STATUS_IS_OK(status
)) {
1422 DBG_ERR("ldapsrv failed tstream_tls_params_server - %s\n",
1427 ldap_service
->call_queue
= tevent_queue_create(ldap_service
, "ldapsrv_call_queue");
1428 if (ldap_service
->call_queue
== NULL
) {
1429 status
= NT_STATUS_NO_MEMORY
;
1433 if (lpcfg_interfaces(task
->lp_ctx
) && lpcfg_bind_interfaces_only(task
->lp_ctx
)) {
1434 struct interface
*ifaces
;
1438 load_interface_list(task
, task
->lp_ctx
, &ifaces
);
1439 num_interfaces
= iface_list_count(ifaces
);
1441 /* We have been given an interfaces line, and been
1442 told to only bind to those interfaces. Create a
1443 socket per interface and bind to only these.
1445 for(i
= 0; i
< num_interfaces
; i
++) {
1446 const char *address
= iface_list_n_ip(ifaces
, i
);
1447 status
= add_socket(task
, task
->lp_ctx
, task
->model_ops
,
1448 address
, ldap_service
);
1449 if (!NT_STATUS_IS_OK(status
)) goto failed
;
1454 size_t num_binds
= 0;
1455 wcard
= iface_list_wildcard(task
);
1456 if (wcard
== NULL
) {
1457 DBG_ERR("No wildcard addresses available\n");
1458 status
= NT_STATUS_UNSUCCESSFUL
;
1461 for (i
=0; wcard
[i
]; i
++) {
1462 status
= add_socket(task
, task
->lp_ctx
, task
->model_ops
,
1463 wcard
[i
], ldap_service
);
1464 if (NT_STATUS_IS_OK(status
)) {
1469 if (num_binds
== 0) {
1470 status
= NT_STATUS_UNSUCCESSFUL
;
1475 ldapi_path
= lpcfg_private_path(ldap_service
, task
->lp_ctx
, "ldapi");
1477 status
= NT_STATUS_UNSUCCESSFUL
;
1481 status
= stream_setup_socket(task
, task
->event_ctx
, task
->lp_ctx
,
1482 task
->model_ops
, &ldap_stream_nonpriv_ops
,
1483 "unix", ldapi_path
, NULL
,
1484 lpcfg_socket_options(task
->lp_ctx
),
1485 ldap_service
, task
->process_context
);
1486 talloc_free(ldapi_path
);
1487 if (!NT_STATUS_IS_OK(status
)) {
1488 DBG_ERR("ldapsrv failed to bind to %s - %s\n",
1489 ldapi_path
, nt_errstr(status
));
1492 #ifdef WITH_LDAPI_PRIV_SOCKET
1493 priv_dir
= lpcfg_private_path(ldap_service
, task
->lp_ctx
, "ldap_priv");
1494 if (priv_dir
== NULL
) {
1495 status
= NT_STATUS_UNSUCCESSFUL
;
1499 * Make sure the directory for the privileged ldapi socket exists, and
1500 * is of the correct permissions
1502 if (!directory_create_or_exist(priv_dir
, 0750)) {
1503 task_server_terminate(task
, "Cannot create ldap "
1504 "privileged ldapi directory", true);
1505 return NT_STATUS_UNSUCCESSFUL
;
1507 ldapi_path
= talloc_asprintf(ldap_service
, "%s/ldapi", priv_dir
);
1508 talloc_free(priv_dir
);
1509 if (ldapi_path
== NULL
) {
1510 status
= NT_STATUS_NO_MEMORY
;
1514 status
= stream_setup_socket(task
, task
->event_ctx
, task
->lp_ctx
,
1515 task
->model_ops
, &ldap_stream_priv_ops
,
1516 "unix", ldapi_path
, NULL
,
1517 lpcfg_socket_options(task
->lp_ctx
),
1519 task
->process_context
);
1520 talloc_free(ldapi_path
);
1521 if (!NT_STATUS_IS_OK(status
)) {
1522 DBG_ERR("ldapsrv failed to bind to %s - %s\n",
1523 ldapi_path
, nt_errstr(status
));
1528 /* register the server */
1529 irpc_add_name(task
->msg_ctx
, "ldap_server");
1531 task
->private_data
= ldap_service
;
1533 return NT_STATUS_OK
;
1536 task_server_terminate(task
, "Failed to startup ldap server task", true);
1541 * Open a database to be later used by LDB wrap code (although it should be
1542 * plumbed through correctly eventually).
1544 static void ldapsrv_post_fork(struct task_server
*task
, struct process_details
*pd
)
1546 struct ldapsrv_service
*ldap_service
=
1547 talloc_get_type_abort(task
->private_data
, struct ldapsrv_service
);
1550 * As ldapsrv_before_loop() may changed the values for the parent loop
1551 * we need to adjust the pointers to the correct value in the child
1553 ldap_service
->lp_ctx
= task
->lp_ctx
;
1554 ldap_service
->current_ev
= task
->event_ctx
;
1555 ldap_service
->current_msg
= task
->msg_ctx
;
1557 ldap_service
->sam_ctx
= samdb_connect(ldap_service
,
1558 ldap_service
->current_ev
,
1559 ldap_service
->lp_ctx
,
1560 system_session(ldap_service
->lp_ctx
),
1563 if (ldap_service
->sam_ctx
== NULL
) {
1564 task_server_terminate(task
, "Cannot open system session LDB",
1570 static void ldapsrv_before_loop(struct task_server
*task
)
1572 struct ldapsrv_service
*ldap_service
=
1573 talloc_get_type_abort(task
->private_data
, struct ldapsrv_service
);
1576 if (ldap_service
->sam_ctx
!= NULL
) {
1578 * Make sure the values are still the same
1579 * as set in ldapsrv_post_fork()
1581 SMB_ASSERT(task
->lp_ctx
== ldap_service
->lp_ctx
);
1582 SMB_ASSERT(task
->event_ctx
== ldap_service
->current_ev
);
1583 SMB_ASSERT(task
->msg_ctx
== ldap_service
->current_msg
);
1586 * We need to adjust the pointers to the correct value
1587 * in the parent loop.
1589 ldap_service
->lp_ctx
= task
->lp_ctx
;
1590 ldap_service
->current_ev
= task
->event_ctx
;
1591 ldap_service
->current_msg
= task
->msg_ctx
;
1594 status
= imessaging_register(ldap_service
->current_msg
,
1596 MSG_RELOAD_TLS_CERTIFICATES
,
1598 if (!NT_STATUS_IS_OK(status
)) {
1599 task_server_terminate(task
, "Cannot register ldap_reload_certs",
1606 * Check the size of an ldap request packet.
1608 * For authenticated connections the maximum packet size is controlled by
1609 * the smb.conf parameter "ldap max authenticated request size"
1611 * For anonymous connections the maximum packet size is controlled by
1612 * the smb.conf parameter "ldap max anonymous request size"
1614 static int ldapsrv_check_packet_size(
1615 struct ldapsrv_connection
*conn
,
1618 bool is_anonymous
= false;
1619 size_t max_size
= 0;
1621 max_size
= lpcfg_ldap_max_anonymous_request_size(conn
->lp_ctx
);
1622 if (size
<= max_size
) {
1623 return LDAP_SUCCESS
;
1627 * Request is larger than the maximum unauthenticated request size.
1628 * As this code is called frequently we avoid calling
1629 * security_token_is_anonymous if possible
1631 if (conn
->session_info
!= NULL
&&
1632 conn
->session_info
->security_token
!= NULL
) {
1633 is_anonymous
= security_token_is_anonymous(
1634 conn
->session_info
->security_token
);
1639 "LDAP request size (%zu) exceeds (%zu)\n",
1642 return LDAP_UNWILLING_TO_PERFORM
;
1645 max_size
= lpcfg_ldap_max_authenticated_request_size(conn
->lp_ctx
);
1646 if (size
> max_size
) {
1648 "LDAP request size (%zu) exceeds (%zu)\n",
1651 return LDAP_UNWILLING_TO_PERFORM
;
1653 return LDAP_SUCCESS
;
1658 * Check that the blob contains enough data to be a valid packet
1659 * If there is a packet header check the size to ensure that it does not
1660 * exceed the maximum sizes.
1663 static NTSTATUS
ldapsrv_packet_check(
1664 struct tstream_context
*stream
,
1667 size_t *packet_size
)
1670 struct ldapsrv_connection
*conn
= private_data
;
1671 int result
= LDB_SUCCESS
;
1673 ret
= ldap_full_packet(stream
, private_data
, blob
, packet_size
);
1674 if (!NT_STATUS_IS_OK(ret
)) {
1677 result
= ldapsrv_check_packet_size(conn
, *packet_size
);
1678 if (result
!= LDAP_SUCCESS
) {
1679 return NT_STATUS_LDAP(result
);
1681 return NT_STATUS_OK
;
1684 NTSTATUS
server_service_ldap_init(TALLOC_CTX
*ctx
)
1686 static const struct service_details details
= {
1687 .inhibit_fork_on_accept
= false,
1688 .inhibit_pre_fork
= false,
1689 .task_init
= ldapsrv_task_init
,
1690 .post_fork
= ldapsrv_post_fork
,
1691 .before_loop
= ldapsrv_before_loop
,
1693 return register_server_service(ctx
, "ldap", &details
);