2 Unix SMB/CIFS implementation.
6 Copyright (C) Gerald Carter 2006
7 Copyright (C) Guenther Deschner 2007-2008
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 "libads/sitename_cache.h"
25 #include "../librpc/gen_ndr/ndr_netlogon.h"
26 #include "libads/cldap.h"
27 #include "../lib/addns/dnsquery.h"
28 #include "libsmb/clidgram.h"
31 #define DSGETDCNAME_CACHE_TTL 60*15
33 struct ip_service_name
{
34 struct sockaddr_storage ss
;
38 static NTSTATUS
make_dc_info_from_cldap_reply(TALLOC_CTX
*mem_ctx
,
40 struct sockaddr_storage
*ss
,
41 struct NETLOGON_SAM_LOGON_RESPONSE_EX
*r
,
42 struct netr_DsRGetDCNameInfo
**info
);
44 /****************************************************************
45 ****************************************************************/
47 static void debug_dsdcinfo_flags(int lvl
, uint32_t flags
)
49 DEBUG(lvl
,("debug_dsdcinfo_flags: 0x%08x\n\t", flags
));
51 if (flags
& DS_FORCE_REDISCOVERY
)
52 DEBUGADD(lvl
,("DS_FORCE_REDISCOVERY "));
53 if (flags
& 0x000000002)
54 DEBUGADD(lvl
,("0x00000002 "));
55 if (flags
& 0x000000004)
56 DEBUGADD(lvl
,("0x00000004 "));
57 if (flags
& 0x000000008)
58 DEBUGADD(lvl
,("0x00000008 "));
59 if (flags
& DS_DIRECTORY_SERVICE_REQUIRED
)
60 DEBUGADD(lvl
,("DS_DIRECTORY_SERVICE_REQUIRED "));
61 if (flags
& DS_DIRECTORY_SERVICE_PREFERRED
)
62 DEBUGADD(lvl
,("DS_DIRECTORY_SERVICE_PREFERRED "));
63 if (flags
& DS_GC_SERVER_REQUIRED
)
64 DEBUGADD(lvl
,("DS_GC_SERVER_REQUIRED "));
65 if (flags
& DS_PDC_REQUIRED
)
66 DEBUGADD(lvl
,("DS_PDC_REQUIRED "));
67 if (flags
& DS_BACKGROUND_ONLY
)
68 DEBUGADD(lvl
,("DS_BACKGROUND_ONLY "));
69 if (flags
& DS_IP_REQUIRED
)
70 DEBUGADD(lvl
,("DS_IP_REQUIRED "));
71 if (flags
& DS_KDC_REQUIRED
)
72 DEBUGADD(lvl
,("DS_KDC_REQUIRED "));
73 if (flags
& DS_TIMESERV_REQUIRED
)
74 DEBUGADD(lvl
,("DS_TIMESERV_REQUIRED "));
75 if (flags
& DS_WRITABLE_REQUIRED
)
76 DEBUGADD(lvl
,("DS_WRITABLE_REQUIRED "));
77 if (flags
& DS_GOOD_TIMESERV_PREFERRED
)
78 DEBUGADD(lvl
,("DS_GOOD_TIMESERV_PREFERRED "));
79 if (flags
& DS_AVOID_SELF
)
80 DEBUGADD(lvl
,("DS_AVOID_SELF "));
81 if (flags
& DS_ONLY_LDAP_NEEDED
)
82 DEBUGADD(lvl
,("DS_ONLY_LDAP_NEEDED "));
83 if (flags
& DS_IS_FLAT_NAME
)
84 DEBUGADD(lvl
,("DS_IS_FLAT_NAME "));
85 if (flags
& DS_IS_DNS_NAME
)
86 DEBUGADD(lvl
,("DS_IS_DNS_NAME "));
87 if (flags
& 0x00040000)
88 DEBUGADD(lvl
,("0x00040000 "));
89 if (flags
& 0x00080000)
90 DEBUGADD(lvl
,("0x00080000 "));
91 if (flags
& 0x00100000)
92 DEBUGADD(lvl
,("0x00100000 "));
93 if (flags
& 0x00200000)
94 DEBUGADD(lvl
,("0x00200000 "));
95 if (flags
& 0x00400000)
96 DEBUGADD(lvl
,("0x00400000 "));
97 if (flags
& 0x00800000)
98 DEBUGADD(lvl
,("0x00800000 "));
99 if (flags
& 0x01000000)
100 DEBUGADD(lvl
,("0x01000000 "));
101 if (flags
& 0x02000000)
102 DEBUGADD(lvl
,("0x02000000 "));
103 if (flags
& 0x04000000)
104 DEBUGADD(lvl
,("0x04000000 "));
105 if (flags
& 0x08000000)
106 DEBUGADD(lvl
,("0x08000000 "));
107 if (flags
& 0x10000000)
108 DEBUGADD(lvl
,("0x10000000 "));
109 if (flags
& 0x20000000)
110 DEBUGADD(lvl
,("0x20000000 "));
111 if (flags
& DS_RETURN_DNS_NAME
)
112 DEBUGADD(lvl
,("DS_RETURN_DNS_NAME "));
113 if (flags
& DS_RETURN_FLAT_NAME
)
114 DEBUGADD(lvl
,("DS_RETURN_FLAT_NAME "));
116 DEBUGADD(lvl
,("\n"));
119 /****************************************************************
120 ****************************************************************/
122 static char *dsgetdcname_cache_key(TALLOC_CTX
*mem_ctx
, const char *domain
)
128 return talloc_asprintf_strupper_m(mem_ctx
, "DSGETDCNAME/DOMAIN/%s",
132 /****************************************************************
133 ****************************************************************/
135 static NTSTATUS
dsgetdcname_cache_delete(TALLOC_CTX
*mem_ctx
,
136 const char *domain_name
)
140 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
142 return NT_STATUS_NO_MEMORY
;
145 if (!gencache_del(key
)) {
146 return NT_STATUS_UNSUCCESSFUL
;
152 /****************************************************************
153 ****************************************************************/
155 static NTSTATUS
dsgetdcname_cache_store(TALLOC_CTX
*mem_ctx
,
156 const char *domain_name
,
157 const DATA_BLOB
*blob
)
163 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
165 return NT_STATUS_NO_MEMORY
;
168 expire_time
= time(NULL
) + DSGETDCNAME_CACHE_TTL
;
170 ret
= gencache_set_data_blob(key
, blob
, expire_time
);
172 return ret
? NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
175 /****************************************************************
176 ****************************************************************/
178 static NTSTATUS
store_cldap_reply(TALLOC_CTX
*mem_ctx
,
180 struct sockaddr_storage
*ss
,
182 struct NETLOGON_SAM_LOGON_RESPONSE_EX
*r
)
185 enum ndr_err_code ndr_err
;
187 char addr
[INET6_ADDRSTRLEN
];
189 print_sockaddr(addr
, sizeof(addr
), ss
);
192 r
->sockaddr_size
= 0x10; /* the w32 winsock addr size */
193 r
->sockaddr
.sockaddr_family
= 2; /* AF_INET */
194 r
->sockaddr
.pdc_ip
= talloc_strdup(mem_ctx
, addr
);
196 ndr_err
= ndr_push_struct_blob(&blob
, mem_ctx
, r
,
197 (ndr_push_flags_fn_t
)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX
);
198 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
199 return ndr_map_error2ntstatus(ndr_err
);
202 if (r
->domain_name
) {
203 status
= dsgetdcname_cache_store(mem_ctx
, r
->domain_name
, &blob
);
204 if (!NT_STATUS_IS_OK(status
)) {
207 if (r
->client_site
) {
208 sitename_store(r
->domain_name
, r
->client_site
);
212 status
= dsgetdcname_cache_store(mem_ctx
, r
->dns_domain
, &blob
);
213 if (!NT_STATUS_IS_OK(status
)) {
216 if (r
->client_site
) {
217 sitename_store(r
->dns_domain
, r
->client_site
);
221 status
= NT_STATUS_OK
;
224 data_blob_free(&blob
);
229 /****************************************************************
230 ****************************************************************/
232 static uint32_t get_cldap_reply_server_flags(struct netlogon_samlogon_response
*r
,
235 switch (nt_version
& 0x0000001f) {
245 return r
->data
.nt5
.server_type
;
250 return r
->data
.nt5_ex
.server_type
;
259 return r
->data
.nt5_ex
.server_type
;
269 return r
->data
.nt5_ex
.server_type
;
273 return r
->data
.nt5_ex
.server_type
;
279 /****************************************************************
280 ****************************************************************/
282 static NTSTATUS
dsgetdcname_cache_fetch(TALLOC_CTX
*mem_ctx
,
283 const char *domain_name
,
284 const struct GUID
*domain_guid
,
286 struct netr_DsRGetDCNameInfo
**info_p
)
290 enum ndr_err_code ndr_err
;
291 struct netr_DsRGetDCNameInfo
*info
;
292 struct NETLOGON_SAM_LOGON_RESPONSE_EX r
;
295 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
297 return NT_STATUS_NO_MEMORY
;
300 if (!gencache_get_data_blob(key
, NULL
, &blob
, NULL
, NULL
)) {
301 return NT_STATUS_NOT_FOUND
;
304 info
= talloc_zero(mem_ctx
, struct netr_DsRGetDCNameInfo
);
306 data_blob_free(&blob
);
307 return NT_STATUS_NO_MEMORY
;
310 ndr_err
= ndr_pull_struct_blob(&blob
, mem_ctx
, &r
,
311 (ndr_pull_flags_fn_t
)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX
);
313 data_blob_free(&blob
);
314 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
315 dsgetdcname_cache_delete(mem_ctx
, domain_name
);
316 return ndr_map_error2ntstatus(ndr_err
);
319 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, NULL
,
321 if (!NT_STATUS_IS_OK(status
)) {
325 if (DEBUGLEVEL
>= 10) {
326 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo
, info
);
330 if (!check_cldap_reply_required_flags(info
->dc_flags
, flags
)) {
331 DEBUG(10,("invalid flags\n"));
332 return NT_STATUS_INVALID_PARAMETER
;
335 if ((flags
& DS_IP_REQUIRED
) &&
336 (info
->dc_address_type
!= DS_ADDRESS_TYPE_INET
)) {
337 return NT_STATUS_INVALID_PARAMETER_MIX
;
345 /****************************************************************
346 ****************************************************************/
348 static NTSTATUS
dsgetdcname_cached(TALLOC_CTX
*mem_ctx
,
349 struct messaging_context
*msg_ctx
,
350 const char *domain_name
,
351 const struct GUID
*domain_guid
,
353 const char *site_name
,
354 struct netr_DsRGetDCNameInfo
**info
)
358 status
= dsgetdcname_cache_fetch(mem_ctx
, domain_name
, domain_guid
,
360 if (!NT_STATUS_IS_OK(status
)
361 && !NT_STATUS_EQUAL(status
, NT_STATUS_NOT_FOUND
)) {
362 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
364 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
367 if (flags
& DS_BACKGROUND_ONLY
) {
371 if (NT_STATUS_EQUAL(status
, NT_STATUS_NOT_FOUND
)) {
372 struct netr_DsRGetDCNameInfo
*dc_info
;
374 status
= dsgetdcname(mem_ctx
, msg_ctx
, domain_name
,
375 domain_guid
, site_name
,
376 flags
| DS_FORCE_REDISCOVERY
,
379 if (!NT_STATUS_IS_OK(status
)) {
389 /****************************************************************
390 ****************************************************************/
392 static bool check_allowed_required_flags(uint32_t flags
,
393 const char *site_name
)
395 uint32_t return_type
= flags
& (DS_RETURN_FLAT_NAME
|DS_RETURN_DNS_NAME
);
396 uint32_t offered_type
= flags
& (DS_IS_FLAT_NAME
|DS_IS_DNS_NAME
);
397 uint32_t query_type
= flags
& (DS_BACKGROUND_ONLY
|DS_FORCE_REDISCOVERY
);
399 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
400 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
402 debug_dsdcinfo_flags(10, flags
);
404 if ((flags
& DS_TRY_NEXTCLOSEST_SITE
) && site_name
) {
408 if (return_type
== (DS_RETURN_FLAT_NAME
|DS_RETURN_DNS_NAME
)) {
412 if (offered_type
== (DS_IS_DNS_NAME
|DS_IS_FLAT_NAME
)) {
416 if (query_type
== (DS_BACKGROUND_ONLY
|DS_FORCE_REDISCOVERY
)) {
421 if ((flags
& DS_RETURN_DNS_NAME
) && (!(flags
& DS_IP_REQUIRED
))) {
422 printf("gd: here5 \n");
429 /****************************************************************
430 ****************************************************************/
432 static NTSTATUS
discover_dc_netbios(TALLOC_CTX
*mem_ctx
,
433 const char *domain_name
,
435 struct ip_service_name
**returned_dclist
,
439 enum nbt_name_type name_type
= NBT_NAME_LOGON
;
440 struct ip_service
*iplist
;
442 struct ip_service_name
*dclist
= NULL
;
444 static const char *resolve_order
[] = { "lmhosts", "wins", "bcast", NULL
};
446 *returned_dclist
= NULL
;
449 if (flags
& DS_PDC_REQUIRED
) {
450 name_type
= NBT_NAME_PDC
;
453 status
= internal_resolve_name(domain_name
, name_type
, NULL
,
456 if (!NT_STATUS_IS_OK(status
)) {
457 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
461 dclist
= talloc_zero_array(mem_ctx
, struct ip_service_name
, count
);
464 return NT_STATUS_NO_MEMORY
;
467 for (i
=0; i
<count
; i
++) {
469 char addr
[INET6_ADDRSTRLEN
];
470 struct ip_service_name
*r
= &dclist
[i
];
472 print_sockaddr(addr
, sizeof(addr
),
475 r
->ss
= iplist
[i
].ss
;
476 r
->hostname
= talloc_strdup(mem_ctx
, addr
);
479 return NT_STATUS_NO_MEMORY
;
484 *returned_dclist
= dclist
;
485 *returned_count
= count
;
491 /****************************************************************
492 ****************************************************************/
494 static NTSTATUS
discover_dc_dns(TALLOC_CTX
*mem_ctx
,
495 const char *domain_name
,
496 const struct GUID
*domain_guid
,
498 const char *site_name
,
499 struct ip_service_name
**returned_dclist
,
504 struct dns_rr_srv
*dcs
= NULL
;
507 struct ip_service_name
*dclist
= NULL
;
510 if (flags
& DS_PDC_REQUIRED
) {
511 status
= ads_dns_query_pdc(mem_ctx
,
515 } else if (flags
& DS_GC_SERVER_REQUIRED
) {
516 status
= ads_dns_query_gcs(mem_ctx
,
521 } else if (flags
& DS_KDC_REQUIRED
) {
522 status
= ads_dns_query_kdcs(mem_ctx
,
527 } else if (flags
& DS_DIRECTORY_SERVICE_REQUIRED
) {
528 status
= ads_dns_query_dcs(mem_ctx
,
533 } else if (domain_guid
) {
534 struct GUID_txt_buf buf
;
535 GUID_buf_string(domain_guid
, &buf
);
537 status
= ads_dns_query_dcs_guid(mem_ctx
,
543 status
= ads_dns_query_dcs(mem_ctx
,
550 if (!NT_STATUS_IS_OK(status
)) {
555 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
558 for (i
=0;i
<numdcs
;i
++) {
559 numaddrs
+= MAX(dcs
[i
].num_ips
,1);
562 dclist
= talloc_zero_array(mem_ctx
,
563 struct ip_service_name
,
566 return NT_STATUS_NO_MEMORY
;
569 /* now unroll the list of IP addresses */
575 while ((i
< numdcs
) && (count
< numaddrs
)) {
577 struct ip_service_name
*r
= &dclist
[count
];
579 r
->hostname
= dcs
[i
].hostname
;
581 /* If we don't have an IP list for a name, lookup it up */
584 interpret_string_addr_prefer_ipv4(&r
->ss
,
589 /* use the IP addresses from the SRV response */
591 if (j
>= dcs
[i
].num_ips
) {
597 r
->ss
= dcs
[i
].ss_s
[j
];
601 /* make sure it is a valid IP. I considered checking the
602 * negative connection cache, but this is the wrong place for
603 * it. Maybe only as a hack. After think about it, if all of
604 * the IP addresses returned from DNS are dead, what hope does a
605 * netbios name lookup have? The standard reason for falling
606 * back to netbios lookups is that our DNS server doesn't know
607 * anything about the DC's -- jerry */
609 if (!is_zero_addr(&r
->ss
)) {
615 *returned_dclist
= dclist
;
616 *return_count
= count
;
622 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
625 /****************************************************************
626 ****************************************************************/
628 static NTSTATUS
make_domain_controller_info(TALLOC_CTX
*mem_ctx
,
630 const char *dc_address
,
631 uint32_t dc_address_type
,
632 const struct GUID
*domain_guid
,
633 const char *domain_name
,
634 const char *forest_name
,
636 const char *dc_site_name
,
637 const char *client_site_name
,
638 struct netr_DsRGetDCNameInfo
**info_out
)
640 struct netr_DsRGetDCNameInfo
*info
;
642 info
= talloc_zero(mem_ctx
, struct netr_DsRGetDCNameInfo
);
643 NT_STATUS_HAVE_NO_MEMORY(info
);
646 info
->dc_unc
= talloc_strdup(mem_ctx
, dc_unc
);
647 NT_STATUS_HAVE_NO_MEMORY(info
->dc_unc
);
651 if (!(dc_address
[0] == '\\' && dc_address
[1] == '\\')) {
652 info
->dc_address
= talloc_asprintf(mem_ctx
, "\\\\%s",
655 info
->dc_address
= talloc_strdup(mem_ctx
, dc_address
);
657 NT_STATUS_HAVE_NO_MEMORY(info
->dc_address
);
660 info
->dc_address_type
= dc_address_type
;
663 info
->domain_guid
= *domain_guid
;
667 info
->domain_name
= talloc_strdup(mem_ctx
, domain_name
);
668 NT_STATUS_HAVE_NO_MEMORY(info
->domain_name
);
671 if (forest_name
&& *forest_name
) {
672 info
->forest_name
= talloc_strdup(mem_ctx
, forest_name
);
673 NT_STATUS_HAVE_NO_MEMORY(info
->forest_name
);
674 flags
|= DS_DNS_FOREST_ROOT
;
677 info
->dc_flags
= flags
;
680 info
->dc_site_name
= talloc_strdup(mem_ctx
, dc_site_name
);
681 NT_STATUS_HAVE_NO_MEMORY(info
->dc_site_name
);
684 if (client_site_name
) {
685 info
->client_site_name
= talloc_strdup(mem_ctx
,
687 NT_STATUS_HAVE_NO_MEMORY(info
->client_site_name
);
695 /****************************************************************
696 ****************************************************************/
698 static void map_dc_and_domain_names(uint32_t flags
,
700 const char *domain_name
,
701 const char *dns_dc_name
,
702 const char *dns_domain_name
,
704 const char **hostname_p
,
705 const char **domain_p
)
707 switch (flags
& 0xf0000000) {
708 case DS_RETURN_FLAT_NAME
:
709 if (dc_name
&& domain_name
&&
710 *dc_name
&& *domain_name
) {
711 *hostname_p
= dc_name
;
712 *domain_p
= domain_name
;
715 case DS_RETURN_DNS_NAME
:
717 if (dns_dc_name
&& dns_domain_name
&&
718 *dns_dc_name
&& *dns_domain_name
) {
719 *hostname_p
= dns_dc_name
;
720 *domain_p
= dns_domain_name
;
721 *dc_flags
|= DS_DNS_DOMAIN
| DS_DNS_CONTROLLER
;
724 if (dc_name
&& domain_name
&&
725 *dc_name
&& *domain_name
) {
726 *hostname_p
= dc_name
;
727 *domain_p
= domain_name
;
733 /****************************************************************
734 ****************************************************************/
736 static NTSTATUS
make_dc_info_from_cldap_reply(TALLOC_CTX
*mem_ctx
,
738 struct sockaddr_storage
*ss
,
739 struct NETLOGON_SAM_LOGON_RESPONSE_EX
*r
,
740 struct netr_DsRGetDCNameInfo
**info
)
742 const char *dc_hostname
= NULL
;
743 const char *dc_domain_name
= NULL
;
744 const char *dc_address
= NULL
;
745 const char *dc_forest
= NULL
;
746 uint32_t dc_address_type
= 0;
747 uint32_t dc_flags
= 0;
748 struct GUID
*dc_domain_guid
= NULL
;
749 const char *dc_server_site
= NULL
;
750 const char *dc_client_site
= NULL
;
752 char addr
[INET6_ADDRSTRLEN
];
755 print_sockaddr(addr
, sizeof(addr
), ss
);
757 dc_address_type
= DS_ADDRESS_TYPE_INET
;
759 if (r
->sockaddr
.pdc_ip
) {
760 dc_address
= r
->sockaddr
.pdc_ip
;
761 dc_address_type
= DS_ADDRESS_TYPE_INET
;
763 dc_address
= r
->pdc_name
;
764 dc_address_type
= DS_ADDRESS_TYPE_NETBIOS
;
768 map_dc_and_domain_names(flags
,
777 dc_flags
|= r
->server_type
;
778 dc_forest
= r
->forest
;
779 dc_domain_guid
= &r
->domain_uuid
;
780 dc_server_site
= r
->server_site
;
781 dc_client_site
= r
->client_site
;
783 return make_domain_controller_info(mem_ctx
,
796 /****************************************************************
797 ****************************************************************/
799 static uint32_t map_ds_flags_to_nt_version(uint32_t flags
)
801 uint32_t nt_version
= 0;
803 if (flags
& DS_PDC_REQUIRED
) {
804 nt_version
|= NETLOGON_NT_VERSION_PDC
;
807 if (flags
& DS_GC_SERVER_REQUIRED
) {
808 nt_version
|= NETLOGON_NT_VERSION_GC
;
811 if (flags
& DS_TRY_NEXTCLOSEST_SITE
) {
812 nt_version
|= NETLOGON_NT_VERSION_WITH_CLOSEST_SITE
;
815 if (flags
& DS_IP_REQUIRED
) {
816 nt_version
|= NETLOGON_NT_VERSION_IP
;
822 /****************************************************************
823 ****************************************************************/
825 static NTSTATUS
process_dc_dns(TALLOC_CTX
*mem_ctx
,
826 const char *domain_name
,
828 struct ip_service_name
*dclist
,
830 struct netr_DsRGetDCNameInfo
**info
)
833 bool valid_dc
= false;
834 struct netlogon_samlogon_response
*r
= NULL
;
835 uint32_t nt_version
= NETLOGON_NT_VERSION_5
|
836 NETLOGON_NT_VERSION_5EX
;
837 uint32_t ret_flags
= 0;
840 nt_version
|= map_ds_flags_to_nt_version(flags
);
842 for (i
=0; i
<num_dcs
; i
++) {
844 char addr
[INET6_ADDRSTRLEN
];
845 print_sockaddr(addr
, sizeof(addr
), &dclist
[i
].ss
);
847 DEBUG(10,("LDAP ping to %s (%s)\n", dclist
[i
].hostname
, addr
));
849 if (ads_cldap_netlogon(mem_ctx
, &dclist
[i
].ss
,
854 nt_version
= r
->ntver
;
855 ret_flags
= get_cldap_reply_server_flags(r
, nt_version
);
857 if (check_cldap_reply_required_flags(ret_flags
, flags
)) {
867 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
870 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
871 &r
->data
.nt5_ex
, info
);
872 if (NT_STATUS_IS_OK(status
)) {
873 return store_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
874 nt_version
, &r
->data
.nt5_ex
);
880 /****************************************************************
881 ****************************************************************/
883 /****************************************************************
884 ****************************************************************/
886 static NTSTATUS
process_dc_netbios(TALLOC_CTX
*mem_ctx
,
887 struct messaging_context
*msg_ctx
,
888 const char *domain_name
,
890 struct ip_service_name
*dclist
,
892 struct netr_DsRGetDCNameInfo
**info
)
894 struct sockaddr_storage ss
;
895 struct ip_service ip_list
;
896 enum nbt_name_type name_type
= NBT_NAME_LOGON
;
899 const char *dc_name
= NULL
;
901 struct netlogon_samlogon_response
*r
= NULL
;
902 bool store_cache
= false;
903 uint32_t nt_version
= NETLOGON_NT_VERSION_1
|
904 NETLOGON_NT_VERSION_5
|
905 NETLOGON_NT_VERSION_5EX_WITH_IP
;
907 if (msg_ctx
== NULL
) {
908 return NT_STATUS_INVALID_PARAMETER
;
911 if (flags
& DS_PDC_REQUIRED
) {
912 name_type
= NBT_NAME_PDC
;
915 nt_version
|= map_ds_flags_to_nt_version(flags
);
917 DEBUG(10,("process_dc_netbios\n"));
919 for (i
=0; i
<num_dcs
; i
++) {
922 generate_random_buffer((uint8_t *)&val
, 2);
924 ip_list
.ss
= dclist
[i
].ss
;
927 if (!interpret_string_addr_prefer_ipv4(&ss
, dclist
[i
].hostname
, AI_NUMERICHOST
)) {
928 return NT_STATUS_UNSUCCESSFUL
;
931 status
= nbt_getdc(msg_ctx
, 10, &dclist
[i
].ss
, domain_name
,
933 mem_ctx
, &nt_version
, &dc_name
, &r
);
934 if (NT_STATUS_IS_OK(status
)) {
936 namecache_store(dc_name
, NBT_NAME_SERVER
, 1, &ip_list
);
940 if (name_status_find(domain_name
,
946 struct NETLOGON_SAM_LOGON_RESPONSE_NT40 logon1
;
948 r
= talloc_zero(mem_ctx
, struct netlogon_samlogon_response
);
949 NT_STATUS_HAVE_NO_MEMORY(r
);
953 nt_version
= NETLOGON_NT_VERSION_1
;
955 logon1
.nt_version
= nt_version
;
956 logon1
.pdc_name
= tmp_dc_name
;
957 logon1
.domain_name
= talloc_strdup_upper(mem_ctx
, domain_name
);
958 NT_STATUS_HAVE_NO_MEMORY(logon1
.domain_name
);
960 r
->data
.nt4
= logon1
;
961 r
->ntver
= nt_version
;
963 map_netlogon_samlogon_response(r
);
965 namecache_store(tmp_dc_name
, NBT_NAME_SERVER
, 1, &ip_list
);
971 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
975 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
976 &r
->data
.nt5_ex
, info
);
977 if (NT_STATUS_IS_OK(status
) && store_cache
) {
978 return store_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
979 nt_version
, &r
->data
.nt5_ex
);
985 /****************************************************************
986 ****************************************************************/
988 static NTSTATUS
dsgetdcname_rediscover(TALLOC_CTX
*mem_ctx
,
989 struct messaging_context
*msg_ctx
,
990 const char *domain_name
,
991 const struct GUID
*domain_guid
,
993 const char *site_name
,
994 struct netr_DsRGetDCNameInfo
**info
)
996 NTSTATUS status
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
997 struct ip_service_name
*dclist
= NULL
;
1000 DEBUG(10,("dsgetdcname_rediscover\n"));
1002 if (flags
& DS_IS_FLAT_NAME
) {
1004 if (lp_disable_netbios()) {
1005 return NT_STATUS_NOT_SUPPORTED
;
1008 status
= discover_dc_netbios(mem_ctx
, domain_name
, flags
,
1010 NT_STATUS_NOT_OK_RETURN(status
);
1012 return process_dc_netbios(mem_ctx
, msg_ctx
, domain_name
, flags
,
1013 dclist
, num_dcs
, info
);
1016 if (flags
& DS_IS_DNS_NAME
) {
1018 status
= discover_dc_dns(mem_ctx
, domain_name
, domain_guid
,
1019 flags
, site_name
, &dclist
, &num_dcs
);
1020 NT_STATUS_NOT_OK_RETURN(status
);
1022 return process_dc_dns(mem_ctx
, domain_name
, flags
,
1023 dclist
, num_dcs
, info
);
1026 status
= discover_dc_dns(mem_ctx
, domain_name
, domain_guid
, flags
,
1027 site_name
, &dclist
, &num_dcs
);
1029 if (NT_STATUS_IS_OK(status
) && num_dcs
!= 0) {
1031 status
= process_dc_dns(mem_ctx
, domain_name
, flags
, dclist
,
1033 if (NT_STATUS_IS_OK(status
)) {
1038 if (lp_disable_netbios()) {
1039 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1042 status
= discover_dc_netbios(mem_ctx
, domain_name
, flags
, &dclist
,
1044 NT_STATUS_NOT_OK_RETURN(status
);
1046 return process_dc_netbios(mem_ctx
, msg_ctx
, domain_name
, flags
, dclist
,
1050 static bool is_closest_site(struct netr_DsRGetDCNameInfo
*info
)
1052 if (info
->dc_flags
& DS_SERVER_CLOSEST
) {
1056 if (!info
->client_site_name
) {
1060 if (!info
->dc_site_name
) {
1064 if (strcmp(info
->client_site_name
, info
->dc_site_name
) == 0) {
1071 /********************************************************************
1072 Internal dsgetdcname.
1073 ********************************************************************/
1075 static NTSTATUS
dsgetdcname_internal(TALLOC_CTX
*mem_ctx
,
1076 struct messaging_context
*msg_ctx
,
1077 const char *domain_name
,
1078 const struct GUID
*domain_guid
,
1079 const char *site_name
,
1081 struct netr_DsRGetDCNameInfo
**info
)
1083 NTSTATUS status
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1084 struct netr_DsRGetDCNameInfo
*myinfo
= NULL
;
1086 struct netr_DsRGetDCNameInfo
*first_info
= NULL
;
1088 DEBUG(10,("dsgetdcname_internal: domain_name: %s, "
1089 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
1091 domain_guid
? GUID_string(mem_ctx
, domain_guid
) : "(null)",
1092 site_name
? site_name
: "(null)", flags
));
1096 if (!check_allowed_required_flags(flags
, site_name
)) {
1097 DEBUG(0,("invalid flags specified\n"));
1098 return NT_STATUS_INVALID_PARAMETER
;
1101 if (flags
& DS_FORCE_REDISCOVERY
) {
1105 status
= dsgetdcname_cached(mem_ctx
, msg_ctx
, domain_name
, domain_guid
,
1106 flags
, site_name
, &myinfo
);
1107 if (NT_STATUS_IS_OK(status
)) {
1111 if (flags
& DS_BACKGROUND_ONLY
) {
1116 status
= dsgetdcname_rediscover(mem_ctx
, msg_ctx
, domain_name
,
1117 domain_guid
, flags
, site_name
,
1121 if (!NT_STATUS_IS_OK(status
)) {
1124 return NT_STATUS_OK
;
1130 TALLOC_FREE(first_info
);
1131 } else if (!is_closest_site(myinfo
)) {
1133 first_info
= myinfo
;
1134 /* TODO: may use the next_closest_site here */
1135 site_name
= myinfo
->client_site_name
;
1140 return NT_STATUS_OK
;
1143 /********************************************************************
1146 This will be the only public function here.
1147 ********************************************************************/
1149 NTSTATUS
dsgetdcname(TALLOC_CTX
*mem_ctx
,
1150 struct messaging_context
*msg_ctx
,
1151 const char *domain_name
,
1152 const struct GUID
*domain_guid
,
1153 const char *site_name
,
1155 struct netr_DsRGetDCNameInfo
**info
)
1158 const char *query_site
= NULL
;
1159 char *ptr_to_free
= NULL
;
1160 bool retry_query_with_null
= false;
1162 if ((site_name
== NULL
) || (site_name
[0] == '\0')) {
1163 ptr_to_free
= sitename_fetch(mem_ctx
, domain_name
);
1164 if (ptr_to_free
!= NULL
) {
1165 retry_query_with_null
= true;
1167 query_site
= ptr_to_free
;
1169 query_site
= site_name
;
1172 status
= dsgetdcname_internal(mem_ctx
,
1180 TALLOC_FREE(ptr_to_free
);
1182 if (!NT_STATUS_EQUAL(status
, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
)) {
1186 /* Should we try again with site_name == NULL ? */
1187 if (retry_query_with_null
) {
1188 status
= dsgetdcname_internal(mem_ctx
,