2 Unix SMB/CIFS implementation.
6 Copyright (C) 2010 Kai Blin <kai@samba.org>
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/>.
23 #include "smbd/service_task.h"
24 #include "smbd/service.h"
25 #include "smbd/service_stream.h"
26 #include "smbd/process_model.h"
27 #include "lib/events/events.h"
28 #include "lib/socket/socket.h"
29 #include "lib/tsocket/tsocket.h"
30 #include "libcli/util/tstream.h"
31 #include "libcli/util/ntstatus.h"
32 #include "system/network.h"
33 #include "lib/stream/packet.h"
34 #include "lib/socket/netif.h"
35 #include "dns_server/dns_server.h"
36 #include "param/param.h"
37 #include "librpc/ndr/libndr.h"
38 #include "librpc/gen_ndr/ndr_dns.h"
39 #include "librpc/gen_ndr/ndr_dnsp.h"
41 #include "dsdb/samdb/samdb.h"
42 #include "dsdb/common/util.h"
43 #include "auth/session.h"
44 #include "lib/util/dlinklist.h"
45 #include "lib/util/tevent_werror.h"
46 #include "auth/auth.h"
47 #include "auth/credentials/credentials.h"
49 NTSTATUS
server_service_dns_init(void);
51 /* hold information about one dns socket */
53 struct dns_server
*dns
;
54 struct tsocket_address
*local_address
;
57 struct dns_udp_socket
{
58 struct dns_socket
*dns_socket
;
59 struct tdgram_context
*dgram
;
60 struct tevent_queue
*send_queue
;
64 state of an open tcp connection
66 struct dns_tcp_connection
{
67 /* stream connection we belong to */
68 struct stream_connection
*conn
;
70 /* the dns_server the connection belongs to */
71 struct dns_socket
*dns_socket
;
73 struct tstream_context
*tstream
;
75 struct tevent_queue
*send_queue
;
78 static void dns_tcp_terminate_connection(struct dns_tcp_connection
*dnsconn
, const char *reason
)
80 stream_terminate_connection(dnsconn
->conn
, reason
);
83 static void dns_tcp_recv(struct stream_connection
*conn
, uint16_t flags
)
85 struct dns_tcp_connection
*dnsconn
= talloc_get_type(conn
->private_data
,
86 struct dns_tcp_connection
);
87 /* this should never be triggered! */
88 dns_tcp_terminate_connection(dnsconn
, "dns_tcp_recv: called");
91 static void dns_tcp_send(struct stream_connection
*conn
, uint16_t flags
)
93 struct dns_tcp_connection
*dnsconn
= talloc_get_type(conn
->private_data
,
94 struct dns_tcp_connection
);
95 /* this should never be triggered! */
96 dns_tcp_terminate_connection(dnsconn
, "dns_tcp_send: called");
99 struct dns_process_state
{
101 struct dns_server
*dns
;
102 struct dns_name_packet in_packet
;
103 struct dns_request_state state
;
105 struct dns_name_packet out_packet
;
109 static void dns_process_done(struct tevent_req
*subreq
);
111 static struct tevent_req
*dns_process_send(TALLOC_CTX
*mem_ctx
,
112 struct tevent_context
*ev
,
113 struct dns_server
*dns
,
116 struct tevent_req
*req
, *subreq
;
117 struct dns_process_state
*state
;
118 enum ndr_err_code ndr_err
;
121 req
= tevent_req_create(mem_ctx
, &state
, struct dns_process_state
);
129 if (in
->length
< 12) {
130 tevent_req_werror(req
, WERR_INVALID_PARAM
);
131 return tevent_req_post(req
, ev
);
133 dump_data(8, in
->data
, in
->length
);
135 ndr_err
= ndr_pull_struct_blob(
136 in
, state
, &state
->in_packet
,
137 (ndr_pull_flags_fn_t
)ndr_pull_dns_name_packet
);
139 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
140 state
->dns_err
= DNS_RCODE_FORMERR
;
141 tevent_req_done(req
);
142 return tevent_req_post(req
, ev
);
145 NDR_PRINT_DEBUG(dns_name_packet
, &state
->in_packet
);
148 ret
= dns_verify_tsig(dns
, state
, &state
->state
, &state
->in_packet
, in
);
149 if (!W_ERROR_IS_OK(ret
)) {
150 DEBUG(0, ("Bailing out early!\n"));
151 state
->dns_err
= werr_to_dns_err(ret
);
152 tevent_req_done(req
);
153 return tevent_req_post(req
, ev
);
156 state
->state
.flags
= state
->in_packet
.operation
;
157 state
->state
.flags
|= DNS_FLAG_REPLY
;
159 if (lpcfg_dns_recursive_queries(dns
->task
->lp_ctx
)) {
160 state
->state
.flags
|= DNS_FLAG_RECURSION_AVAIL
;
163 state
->out_packet
= state
->in_packet
;
165 switch (state
->in_packet
.operation
& DNS_OPCODE
) {
166 case DNS_OPCODE_QUERY
:
167 subreq
= dns_server_process_query_send(
168 state
, ev
, dns
, &state
->state
, &state
->in_packet
);
169 if (tevent_req_nomem(subreq
, req
)) {
170 return tevent_req_post(req
, ev
);
172 tevent_req_set_callback(subreq
, dns_process_done
, req
);
174 case DNS_OPCODE_UPDATE
:
175 ret
= dns_server_process_update(
176 dns
, &state
->state
, state
, &state
->in_packet
,
177 &state
->out_packet
.answers
, &state
->out_packet
.ancount
,
178 &state
->out_packet
.nsrecs
, &state
->out_packet
.nscount
,
179 &state
->out_packet
.additional
,
180 &state
->out_packet
.arcount
);
183 ret
= WERR_DNS_ERROR_RCODE_NOT_IMPLEMENTED
;
185 if (!W_ERROR_IS_OK(ret
)) {
186 state
->dns_err
= werr_to_dns_err(ret
);
188 tevent_req_done(req
);
189 return tevent_req_post(req
, ev
);
192 static void dns_process_done(struct tevent_req
*subreq
)
194 struct tevent_req
*req
= tevent_req_callback_data(
195 subreq
, struct tevent_req
);
196 struct dns_process_state
*state
= tevent_req_data(
197 req
, struct dns_process_state
);
200 ret
= dns_server_process_query_recv(
202 &state
->out_packet
.answers
, &state
->out_packet
.ancount
,
203 &state
->out_packet
.nsrecs
, &state
->out_packet
.nscount
,
204 &state
->out_packet
.additional
, &state
->out_packet
.arcount
);
207 if (!W_ERROR_IS_OK(ret
)) {
208 state
->dns_err
= werr_to_dns_err(ret
);
210 tevent_req_done(req
);
213 static WERROR
dns_process_recv(struct tevent_req
*req
, TALLOC_CTX
*mem_ctx
,
216 struct dns_process_state
*state
= tevent_req_data(
217 req
, struct dns_process_state
);
218 enum ndr_err_code ndr_err
;
221 if (tevent_req_is_werror(req
, &ret
)) {
224 if (state
->dns_err
!= DNS_RCODE_OK
) {
227 state
->out_packet
.operation
|= state
->state
.flags
;
229 if (state
->state
.sign
) {
230 DEBUG(0, ("Signing\n"));
231 ret
= dns_sign_tsig(state
->dns
, mem_ctx
, &state
->state
,
232 &state
->out_packet
, 0);
233 if (!W_ERROR_IS_OK(ret
)) {
234 state
->dns_err
= DNS_RCODE_SERVFAIL
;
239 //NDR_PRINT_DEBUG(dns_name_packet, &state->out_packet);
241 ndr_err
= ndr_push_struct_blob(
242 out
, mem_ctx
, &state
->out_packet
,
243 (ndr_push_flags_fn_t
)ndr_push_dns_name_packet
);
244 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
245 DEBUG(1, ("Failed to push packet: %s!\n",
246 ndr_errstr(ndr_err
)));
247 state
->dns_err
= DNS_RCODE_SERVFAIL
;
253 *out
= data_blob_talloc(mem_ctx
, state
->in
->data
, state
->in
->length
);
254 if (out
->data
== NULL
) {
257 out
->data
[2] |= 0x80; /* Toggle DNS_FLAG_REPLY */
258 out
->data
[3] |= state
->dns_err
;
262 struct dns_tcp_call
{
263 struct dns_tcp_connection
*dns_conn
;
267 struct iovec out_iov
[2];
270 static void dns_tcp_call_process_done(struct tevent_req
*subreq
);
271 static void dns_tcp_call_writev_done(struct tevent_req
*subreq
);
273 static void dns_tcp_call_loop(struct tevent_req
*subreq
)
275 struct dns_tcp_connection
*dns_conn
= tevent_req_callback_data(subreq
,
276 struct dns_tcp_connection
);
277 struct dns_server
*dns
= dns_conn
->dns_socket
->dns
;
278 struct dns_tcp_call
*call
;
281 call
= talloc(dns_conn
, struct dns_tcp_call
);
283 dns_tcp_terminate_connection(dns_conn
, "dns_tcp_call_loop: "
284 "no memory for dns_tcp_call");
287 call
->dns_conn
= dns_conn
;
289 status
= tstream_read_pdu_blob_recv(subreq
,
293 if (!NT_STATUS_IS_OK(status
)) {
296 reason
= talloc_asprintf(call
, "dns_tcp_call_loop: "
297 "tstream_read_pdu_blob_recv() - %s",
300 reason
= nt_errstr(status
);
303 dns_tcp_terminate_connection(dns_conn
, reason
);
307 DEBUG(10,("Received DNS TCP packet of length %lu from %s\n",
308 (long) call
->in
.length
,
309 tsocket_address_string(dns_conn
->conn
->remote_address
, call
)));
311 /* skip length header */
313 call
->in
.length
-= 2;
315 subreq
= dns_process_send(call
, dns
->task
->event_ctx
, dns
,
317 if (subreq
== NULL
) {
318 dns_tcp_terminate_connection(
319 dns_conn
, "dns_tcp_call_loop: dns_process_send "
323 tevent_req_set_callback(subreq
, dns_tcp_call_process_done
, call
);
326 * The dns tcp pdu's has the length as 2 byte (initial_read_size),
327 * packet_full_request_u16 provides the pdu length then.
329 subreq
= tstream_read_pdu_blob_send(dns_conn
,
330 dns_conn
->conn
->event
.ctx
,
332 2, /* initial_read_size */
333 packet_full_request_u16
,
335 if (subreq
== NULL
) {
336 dns_tcp_terminate_connection(dns_conn
, "dns_tcp_call_loop: "
337 "no memory for tstream_read_pdu_blob_send");
340 tevent_req_set_callback(subreq
, dns_tcp_call_loop
, dns_conn
);
343 static void dns_tcp_call_process_done(struct tevent_req
*subreq
)
345 struct dns_tcp_call
*call
= tevent_req_callback_data(subreq
,
346 struct dns_tcp_call
);
347 struct dns_tcp_connection
*dns_conn
= call
->dns_conn
;
350 err
= dns_process_recv(subreq
, call
, &call
->out
);
352 if (!W_ERROR_IS_OK(err
)) {
353 DEBUG(1, ("dns_process returned %s\n", win_errstr(err
)));
354 dns_tcp_terminate_connection(dns_conn
,
355 "dns_tcp_call_loop: process function failed");
359 /* First add the length of the out buffer */
360 RSSVAL(call
->out_hdr
, 0, call
->out
.length
);
361 call
->out_iov
[0].iov_base
= (char *) call
->out_hdr
;
362 call
->out_iov
[0].iov_len
= 2;
364 call
->out_iov
[1].iov_base
= (char *) call
->out
.data
;
365 call
->out_iov
[1].iov_len
= call
->out
.length
;
367 subreq
= tstream_writev_queue_send(call
,
368 dns_conn
->conn
->event
.ctx
,
370 dns_conn
->send_queue
,
372 if (subreq
== NULL
) {
373 dns_tcp_terminate_connection(dns_conn
, "dns_tcp_call_loop: "
374 "no memory for tstream_writev_queue_send");
377 tevent_req_set_callback(subreq
, dns_tcp_call_writev_done
, call
);
380 static void dns_tcp_call_writev_done(struct tevent_req
*subreq
)
382 struct dns_tcp_call
*call
= tevent_req_callback_data(subreq
,
383 struct dns_tcp_call
);
387 rc
= tstream_writev_queue_recv(subreq
, &sys_errno
);
392 reason
= talloc_asprintf(call
, "dns_tcp_call_writev_done: "
393 "tstream_writev_queue_recv() - %d:%s",
394 sys_errno
, strerror(sys_errno
));
396 reason
= "dns_tcp_call_writev_done: tstream_writev_queue_recv() failed";
399 dns_tcp_terminate_connection(call
->dns_conn
, reason
);
403 /* We don't care about errors */
409 called when we get a new connection
411 static void dns_tcp_accept(struct stream_connection
*conn
)
413 struct dns_socket
*dns_socket
;
414 struct dns_tcp_connection
*dns_conn
;
415 struct tevent_req
*subreq
;
418 dns_conn
= talloc_zero(conn
, struct dns_tcp_connection
);
419 if (dns_conn
== NULL
) {
420 stream_terminate_connection(conn
,
421 "dns_tcp_accept: out of memory");
425 dns_conn
->send_queue
= tevent_queue_create(conn
, "dns_tcp_accept");
426 if (dns_conn
->send_queue
== NULL
) {
427 stream_terminate_connection(conn
,
428 "dns_tcp_accept: out of memory");
432 dns_socket
= talloc_get_type(conn
->private_data
, struct dns_socket
);
434 TALLOC_FREE(conn
->event
.fde
);
436 rc
= tstream_bsd_existing_socket(dns_conn
,
437 socket_get_fd(conn
->socket
),
440 stream_terminate_connection(conn
,
441 "dns_tcp_accept: out of memory");
445 dns_conn
->conn
= conn
;
446 dns_conn
->dns_socket
= dns_socket
;
447 conn
->private_data
= dns_conn
;
450 * The dns tcp pdu's has the length as 2 byte (initial_read_size),
451 * packet_full_request_u16 provides the pdu length then.
453 subreq
= tstream_read_pdu_blob_send(dns_conn
,
454 dns_conn
->conn
->event
.ctx
,
456 2, /* initial_read_size */
457 packet_full_request_u16
,
459 if (subreq
== NULL
) {
460 dns_tcp_terminate_connection(dns_conn
, "dns_tcp_accept: "
461 "no memory for tstream_read_pdu_blob_send");
464 tevent_req_set_callback(subreq
, dns_tcp_call_loop
, dns_conn
);
467 static const struct stream_server_ops dns_tcp_stream_ops
= {
469 .accept_connection
= dns_tcp_accept
,
470 .recv_handler
= dns_tcp_recv
,
471 .send_handler
= dns_tcp_send
474 struct dns_udp_call
{
475 struct dns_udp_socket
*sock
;
476 struct tsocket_address
*src
;
481 static void dns_udp_call_process_done(struct tevent_req
*subreq
);
482 static void dns_udp_call_sendto_done(struct tevent_req
*subreq
);
484 static void dns_udp_call_loop(struct tevent_req
*subreq
)
486 struct dns_udp_socket
*sock
= tevent_req_callback_data(subreq
,
487 struct dns_udp_socket
);
488 struct dns_server
*dns
= sock
->dns_socket
->dns
;
489 struct dns_udp_call
*call
;
494 call
= talloc(sock
, struct dns_udp_call
);
501 len
= tdgram_recvfrom_recv(subreq
, &sys_errno
,
502 call
, &buf
, &call
->src
);
510 call
->in
.length
= len
;
512 DEBUG(10,("Received DNS UDP packet of length %lu from %s\n",
513 (long)call
->in
.length
,
514 tsocket_address_string(call
->src
, call
)));
516 subreq
= dns_process_send(call
, dns
->task
->event_ctx
, dns
,
518 if (subreq
== NULL
) {
522 tevent_req_set_callback(subreq
, dns_udp_call_process_done
, call
);
525 subreq
= tdgram_recvfrom_send(sock
,
526 sock
->dns_socket
->dns
->task
->event_ctx
,
528 if (subreq
== NULL
) {
529 task_server_terminate(sock
->dns_socket
->dns
->task
,
530 "no memory for tdgram_recvfrom_send",
534 tevent_req_set_callback(subreq
, dns_udp_call_loop
, sock
);
537 static void dns_udp_call_process_done(struct tevent_req
*subreq
)
539 struct dns_udp_call
*call
= tevent_req_callback_data(
540 subreq
, struct dns_udp_call
);
541 struct dns_udp_socket
*sock
= call
->sock
;
542 struct dns_server
*dns
= sock
->dns_socket
->dns
;
545 err
= dns_process_recv(subreq
, call
, &call
->out
);
547 if (!W_ERROR_IS_OK(err
)) {
548 DEBUG(1, ("dns_process returned %s\n", win_errstr(err
)));
553 subreq
= tdgram_sendto_queue_send(call
,
554 dns
->task
->event_ctx
,
560 if (subreq
== NULL
) {
564 tevent_req_set_callback(subreq
, dns_udp_call_sendto_done
, call
);
567 static void dns_udp_call_sendto_done(struct tevent_req
*subreq
)
569 struct dns_udp_call
*call
= tevent_req_callback_data(subreq
,
570 struct dns_udp_call
);
574 ret
= tdgram_sendto_queue_recv(subreq
, &sys_errno
);
576 /* We don't care about errors */
582 start listening on the given address
584 static NTSTATUS
dns_add_socket(struct dns_server
*dns
,
585 const struct model_ops
*model_ops
,
590 struct dns_socket
*dns_socket
;
591 struct dns_udp_socket
*dns_udp_socket
;
592 struct tevent_req
*udpsubreq
;
596 dns_socket
= talloc(dns
, struct dns_socket
);
597 NT_STATUS_HAVE_NO_MEMORY(dns_socket
);
599 dns_socket
->dns
= dns
;
601 ret
= tsocket_address_inet_from_strings(dns_socket
, "ip",
603 &dns_socket
->local_address
);
605 status
= map_nt_error_from_unix_common(errno
);
609 status
= stream_setup_socket(dns
->task
,
610 dns
->task
->event_ctx
,
614 "ip", address
, &port
,
615 lpcfg_socket_options(dns
->task
->lp_ctx
),
617 if (!NT_STATUS_IS_OK(status
)) {
618 DEBUG(0,("Failed to bind to %s:%u TCP - %s\n",
619 address
, port
, nt_errstr(status
)));
620 talloc_free(dns_socket
);
624 dns_udp_socket
= talloc(dns_socket
, struct dns_udp_socket
);
625 NT_STATUS_HAVE_NO_MEMORY(dns_udp_socket
);
627 dns_udp_socket
->dns_socket
= dns_socket
;
629 ret
= tdgram_inet_udp_socket(dns_socket
->local_address
,
632 &dns_udp_socket
->dgram
);
634 status
= map_nt_error_from_unix_common(errno
);
635 DEBUG(0,("Failed to bind to %s:%u UDP - %s\n",
636 address
, port
, nt_errstr(status
)));
640 dns_udp_socket
->send_queue
= tevent_queue_create(dns_udp_socket
,
641 "dns_udp_send_queue");
642 NT_STATUS_HAVE_NO_MEMORY(dns_udp_socket
->send_queue
);
644 udpsubreq
= tdgram_recvfrom_send(dns_udp_socket
,
645 dns
->task
->event_ctx
,
646 dns_udp_socket
->dgram
);
647 NT_STATUS_HAVE_NO_MEMORY(udpsubreq
);
648 tevent_req_set_callback(udpsubreq
, dns_udp_call_loop
, dns_udp_socket
);
654 setup our listening sockets on the configured network interfaces
656 static NTSTATUS
dns_startup_interfaces(struct dns_server
*dns
, struct loadparm_context
*lp_ctx
,
657 struct interface
*ifaces
)
659 const struct model_ops
*model_ops
;
661 TALLOC_CTX
*tmp_ctx
= talloc_new(dns
);
665 /* within the dns task we want to be a single process, so
666 ask for the single process model ops and pass these to the
667 stream_setup_socket() call. */
668 model_ops
= process_model_startup("single");
670 DEBUG(0,("Can't find 'single' process model_ops\n"));
671 return NT_STATUS_INTERNAL_ERROR
;
674 num_interfaces
= iface_list_count(ifaces
);
676 for (i
=0; i
<num_interfaces
; i
++) {
677 const char *address
= talloc_strdup(tmp_ctx
, iface_list_n_ip(ifaces
, i
));
679 status
= dns_add_socket(dns
, model_ops
, "dns", address
, DNS_SERVICE_PORT
);
680 NT_STATUS_NOT_OK_RETURN(status
);
683 talloc_free(tmp_ctx
);
688 static int dns_server_sort_zones(struct ldb_message
**m1
, struct ldb_message
**m2
)
693 n1
= ldb_msg_find_attr_as_string(*m1
, "name", NULL
);
694 n2
= ldb_msg_find_attr_as_string(*m2
, "name", NULL
);
699 /* If the string lengths are not equal just sort by length */
701 /* If m1 is the larger zone name, return it first */
705 /*TODO: We need to compare DNs here, we want the DomainDNSZones first */
709 static struct dns_server_tkey_store
*tkey_store_init(TALLOC_CTX
*mem_ctx
,
712 struct dns_server_tkey_store
*buffer
= talloc_zero(mem_ctx
,
713 struct dns_server_tkey_store
);
715 if (buffer
== NULL
) {
720 buffer
->next_idx
= 0;
722 buffer
->tkeys
= talloc_zero_array(buffer
, struct dns_server_tkey
*, size
);
723 if (buffer
->tkeys
== NULL
) {
730 static void dns_task_init(struct task_server
*task
)
732 struct dns_server
*dns
;
734 struct interface
*ifaces
;
736 struct ldb_result
*res
;
737 static const char * const attrs
[] = { "name", NULL
};
740 switch (lpcfg_server_role(task
->lp_ctx
)) {
741 case ROLE_STANDALONE
:
742 task_server_terminate(task
, "dns: no DNS required in standalone configuration", false);
744 case ROLE_DOMAIN_MEMBER
:
745 task_server_terminate(task
, "dns: no DNS required in member server configuration", false);
747 case ROLE_ACTIVE_DIRECTORY_DC
:
748 /* Yes, we want a DNS */
752 load_interface_list(task
, task
->lp_ctx
, &ifaces
);
754 if (iface_list_count(ifaces
) == 0) {
755 task_server_terminate(task
, "dns: no network interfaces configured", false);
759 task_server_set_title(task
, "task[dns]");
761 dns
= talloc_zero(task
, struct dns_server
);
763 task_server_terminate(task
, "dns: out of memory", true);
769 dns
->server_credentials
= cli_credentials_init(dns
);
770 if (!dns
->server_credentials
) {
771 task_server_terminate(task
, "Failed to init server credentials\n", true);
775 cli_credentials_set_conf(dns
->server_credentials
, task
->lp_ctx
);
776 status
= cli_credentials_set_machine_account(dns
->server_credentials
, task
->lp_ctx
);
777 if (!NT_STATUS_IS_OK(status
)) {
778 task_server_terminate(task
,
779 talloc_asprintf(task
, "Failed to obtain server credentials, perhaps a standalone server?: %s\n",
785 dns
->tkeys
= tkey_store_init(dns
, TKEY_BUFFER_SIZE
);
787 task_server_terminate(task
, "Failed to allocate tkey storage\n", true);
791 dns
->samdb
= samdb_connect(dns
, dns
->task
->event_ctx
, dns
->task
->lp_ctx
,
792 system_session(dns
->task
->lp_ctx
), 0);
794 task_server_terminate(task
, "dns: samdb_connect failed", true);
798 // TODO: this search does not work against windows
799 ret
= dsdb_search(dns
->samdb
, dns
, &res
, NULL
, LDB_SCOPE_SUBTREE
,
800 attrs
, DSDB_SEARCH_SEARCH_ALL_PARTITIONS
, "(objectClass=dnsZone)");
801 if (ret
!= LDB_SUCCESS
) {
802 task_server_terminate(task
,
803 "dns: failed to look up root DNS zones",
808 TYPESAFE_QSORT(res
->msgs
, res
->count
, dns_server_sort_zones
);
810 for (i
=0; i
< res
->count
; i
++) {
811 struct dns_server_zone
*z
;
813 z
= talloc_zero(dns
, struct dns_server_zone
);
817 z
->name
= ldb_msg_find_attr_as_string(res
->msgs
[i
], "name", NULL
);
818 z
->dn
= talloc_move(z
, &res
->msgs
[i
]->dn
);
820 DLIST_ADD_END(dns
->zones
, z
, NULL
);
823 status
= dns_startup_interfaces(dns
, task
->lp_ctx
, ifaces
);
824 if (!NT_STATUS_IS_OK(status
)) {
825 task_server_terminate(task
, "dns failed to setup interfaces", true);
830 NTSTATUS
server_service_dns_init(void)
832 return register_server_service("dns", dns_task_init
);