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/>.
25 #define DSGETDCNAME_FMT "DSGETDCNAME/DOMAIN/%s"
27 #define DSGETDCNAME_CACHE_TTL 60*15
29 struct ip_service_name
{
30 struct sockaddr_storage ss
;
35 static NTSTATUS
make_dc_info_from_cldap_reply(TALLOC_CTX
*mem_ctx
,
37 struct sockaddr_storage
*ss
,
39 union nbt_cldap_netlogon
*r
,
40 struct netr_DsRGetDCNameInfo
**info
);
42 /****************************************************************
43 ****************************************************************/
45 void debug_dsdcinfo_flags(int lvl
, uint32_t flags
)
47 DEBUG(lvl
,("debug_dsdcinfo_flags: 0x%08x\n\t", flags
));
49 if (flags
& DS_FORCE_REDISCOVERY
)
50 DEBUGADD(lvl
,("DS_FORCE_REDISCOVERY "));
51 if (flags
& 0x000000002)
52 DEBUGADD(lvl
,("0x00000002 "));
53 if (flags
& 0x000000004)
54 DEBUGADD(lvl
,("0x00000004 "));
55 if (flags
& 0x000000008)
56 DEBUGADD(lvl
,("0x00000008 "));
57 if (flags
& DS_DIRECTORY_SERVICE_REQUIRED
)
58 DEBUGADD(lvl
,("DS_DIRECTORY_SERVICE_REQUIRED "));
59 if (flags
& DS_DIRECTORY_SERVICE_PREFERRED
)
60 DEBUGADD(lvl
,("DS_DIRECTORY_SERVICE_PREFERRED "));
61 if (flags
& DS_GC_SERVER_REQUIRED
)
62 DEBUGADD(lvl
,("DS_GC_SERVER_REQUIRED "));
63 if (flags
& DS_PDC_REQUIRED
)
64 DEBUGADD(lvl
,("DS_PDC_REQUIRED "));
65 if (flags
& DS_BACKGROUND_ONLY
)
66 DEBUGADD(lvl
,("DS_BACKGROUND_ONLY "));
67 if (flags
& DS_IP_REQUIRED
)
68 DEBUGADD(lvl
,("DS_IP_REQUIRED "));
69 if (flags
& DS_KDC_REQUIRED
)
70 DEBUGADD(lvl
,("DS_KDC_REQUIRED "));
71 if (flags
& DS_TIMESERV_REQUIRED
)
72 DEBUGADD(lvl
,("DS_TIMESERV_REQUIRED "));
73 if (flags
& DS_WRITABLE_REQUIRED
)
74 DEBUGADD(lvl
,("DS_WRITABLE_REQUIRED "));
75 if (flags
& DS_GOOD_TIMESERV_PREFERRED
)
76 DEBUGADD(lvl
,("DS_GOOD_TIMESERV_PREFERRED "));
77 if (flags
& DS_AVOID_SELF
)
78 DEBUGADD(lvl
,("DS_AVOID_SELF "));
79 if (flags
& DS_ONLY_LDAP_NEEDED
)
80 DEBUGADD(lvl
,("DS_ONLY_LDAP_NEEDED "));
81 if (flags
& DS_IS_FLAT_NAME
)
82 DEBUGADD(lvl
,("DS_IS_FLAT_NAME "));
83 if (flags
& DS_IS_DNS_NAME
)
84 DEBUGADD(lvl
,("DS_IS_DNS_NAME "));
85 if (flags
& 0x00040000)
86 DEBUGADD(lvl
,("0x00040000 "));
87 if (flags
& 0x00080000)
88 DEBUGADD(lvl
,("0x00080000 "));
89 if (flags
& 0x00100000)
90 DEBUGADD(lvl
,("0x00100000 "));
91 if (flags
& 0x00200000)
92 DEBUGADD(lvl
,("0x00200000 "));
93 if (flags
& 0x00400000)
94 DEBUGADD(lvl
,("0x00400000 "));
95 if (flags
& 0x00800000)
96 DEBUGADD(lvl
,("0x00800000 "));
97 if (flags
& 0x01000000)
98 DEBUGADD(lvl
,("0x01000000 "));
99 if (flags
& 0x02000000)
100 DEBUGADD(lvl
,("0x02000000 "));
101 if (flags
& 0x04000000)
102 DEBUGADD(lvl
,("0x04000000 "));
103 if (flags
& 0x08000000)
104 DEBUGADD(lvl
,("0x08000000 "));
105 if (flags
& 0x10000000)
106 DEBUGADD(lvl
,("0x10000000 "));
107 if (flags
& 0x20000000)
108 DEBUGADD(lvl
,("0x20000000 "));
109 if (flags
& DS_RETURN_DNS_NAME
)
110 DEBUGADD(lvl
,("DS_RETURN_DNS_NAME "));
111 if (flags
& DS_RETURN_FLAT_NAME
)
112 DEBUGADD(lvl
,("DS_RETURN_FLAT_NAME "));
114 DEBUGADD(lvl
,("\n"));
117 /****************************************************************
118 ****************************************************************/
120 static char *dsgetdcname_cache_key(TALLOC_CTX
*mem_ctx
, const char *domain
)
126 return talloc_asprintf_strupper_m(mem_ctx
, DSGETDCNAME_FMT
, domain
);
129 /****************************************************************
130 ****************************************************************/
132 static NTSTATUS
dsgetdcname_cache_delete(TALLOC_CTX
*mem_ctx
,
133 const char *domain_name
)
137 if (!gencache_init()) {
138 return NT_STATUS_INTERNAL_DB_ERROR
;
141 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
143 return NT_STATUS_NO_MEMORY
;
146 if (!gencache_del(key
)) {
147 return NT_STATUS_UNSUCCESSFUL
;
153 /****************************************************************
154 ****************************************************************/
156 static NTSTATUS
dsgetdcname_cache_store(TALLOC_CTX
*mem_ctx
,
157 const char *domain_name
,
158 const DATA_BLOB
*blob
)
164 if (!gencache_init()) {
165 return NT_STATUS_INTERNAL_DB_ERROR
;
168 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
170 return NT_STATUS_NO_MEMORY
;
173 expire_time
= time(NULL
) + DSGETDCNAME_CACHE_TTL
;
175 if (gencache_lock_entry(key
) != 0) {
176 return NT_STATUS_LOCK_NOT_GRANTED
;
179 ret
= gencache_set_data_blob(key
, blob
, expire_time
);
181 gencache_unlock_entry(key
);
183 return ret
? NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
186 /****************************************************************
187 ****************************************************************/
189 #define SET_STRING(x) \
190 talloc_strdup(mem_ctx, x); \
191 NT_STATUS_HAVE_NO_MEMORY(x);
193 static NTSTATUS
map_logon29_from_cldap_reply(TALLOC_CTX
*mem_ctx
,
195 struct sockaddr_storage
*ss
,
197 union nbt_cldap_netlogon
*r
,
198 struct nbt_cldap_netlogon_29
*p
)
200 char addr
[INET6_ADDRSTRLEN
];
204 print_sockaddr(addr
, sizeof(addr
), ss
);
207 p
->dc_sock_addr_size
= 0x10; /* the w32 winsock addr size */
208 p
->dc_sock_addr
.family
= 2; /* AF_INET */
209 p
->dc_sock_addr
.pdc_ip
= talloc_strdup(mem_ctx
, addr
);
211 switch (nt_version
& 0x0000001f) {
213 return NT_STATUS_INVALID_PARAMETER
;
217 p
->pdc_name
= SET_STRING(r
->logon1
.pdc_name
);
218 p
->domain
= SET_STRING(r
->logon1
.domain_name
);
220 if (flags
& DS_PDC_REQUIRED
) {
221 p
->server_type
= NBT_SERVER_WRITABLE
|
229 p
->pdc_name
= SET_STRING(r
->logon3
.pdc_name
);
230 p
->domain
= SET_STRING(r
->logon3
.domain_name
);
231 p
->pdc_dns_name
= SET_STRING(r
->logon3
.pdc_dns_name
);
232 p
->dns_domain
= SET_STRING(r
->logon3
.dns_domain
);
233 p
->server_type
= r
->logon3
.server_type
;
234 p
->forest
= SET_STRING(r
->logon3
.forest
);
235 p
->domain_uuid
= r
->logon3
.domain_uuid
;
242 p
->pdc_name
= SET_STRING(r
->logon5
.pdc_name
);
243 p
->domain
= SET_STRING(r
->logon5
.domain
);
244 p
->pdc_dns_name
= SET_STRING(r
->logon5
.pdc_dns_name
);
245 p
->dns_domain
= SET_STRING(r
->logon5
.dns_domain
);
246 p
->server_type
= r
->logon5
.server_type
;
247 p
->forest
= SET_STRING(r
->logon5
.forest
);
248 p
->domain_uuid
= r
->logon5
.domain_uuid
;
249 p
->server_site
= SET_STRING(r
->logon5
.server_site
);
250 p
->client_site
= SET_STRING(r
->logon5
.client_site
);
261 p
->pdc_name
= SET_STRING(r
->logon13
.pdc_name
);
262 p
->domain
= SET_STRING(r
->logon13
.domain
);
263 p
->pdc_dns_name
= SET_STRING(r
->logon13
.pdc_dns_name
);
264 p
->dns_domain
= SET_STRING(r
->logon13
.dns_domain
);
265 p
->server_type
= r
->logon13
.server_type
;
266 p
->forest
= SET_STRING(r
->logon13
.forest
);
267 p
->domain_uuid
= r
->logon13
.domain_uuid
;
268 p
->server_site
= SET_STRING(r
->logon13
.server_site
);
269 p
->client_site
= SET_STRING(r
->logon13
.client_site
);
281 p
->pdc_name
= SET_STRING(r
->logon15
.pdc_name
);
282 p
->domain
= SET_STRING(r
->logon15
.domain
);
283 p
->pdc_dns_name
= SET_STRING(r
->logon15
.pdc_dns_name
);
284 p
->dns_domain
= SET_STRING(r
->logon15
.dns_domain
);
285 p
->server_type
= r
->logon15
.server_type
;
286 p
->forest
= SET_STRING(r
->logon15
.forest
);
287 p
->domain_uuid
= r
->logon15
.domain_uuid
;
288 p
->server_site
= SET_STRING(r
->logon15
.server_site
);
289 p
->client_site
= SET_STRING(r
->logon15
.client_site
);
295 p
->pdc_name
= SET_STRING(r
->logon29
.pdc_name
);
296 p
->domain
= SET_STRING(r
->logon29
.domain
);
297 p
->pdc_dns_name
= SET_STRING(r
->logon29
.pdc_dns_name
);
298 p
->dns_domain
= SET_STRING(r
->logon29
.dns_domain
);
299 p
->server_type
= r
->logon29
.server_type
;
300 p
->forest
= SET_STRING(r
->logon29
.forest
);
301 p
->domain_uuid
= r
->logon29
.domain_uuid
;
302 p
->server_site
= SET_STRING(r
->logon29
.server_site
);
303 p
->client_site
= SET_STRING(r
->logon29
.client_site
);
304 p
->next_closest_site
= SET_STRING(r
->logon29
.next_closest_site
);
308 return NT_STATUS_INVALID_PARAMETER
;
314 /****************************************************************
315 ****************************************************************/
317 static NTSTATUS
store_cldap_reply(TALLOC_CTX
*mem_ctx
,
319 struct sockaddr_storage
*ss
,
321 union nbt_cldap_netlogon
*r
)
324 enum ndr_err_code ndr_err
;
326 struct nbt_cldap_netlogon_29 logon29
;
328 status
= map_logon29_from_cldap_reply(mem_ctx
, flags
, ss
,
329 nt_version
, r
, &logon29
);
330 if (!NT_STATUS_IS_OK(status
)) {
334 ndr_err
= ndr_push_struct_blob(&blob
, mem_ctx
, &logon29
,
335 (ndr_push_flags_fn_t
)ndr_push_nbt_cldap_netlogon_29
);
336 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
337 return ndr_map_error2ntstatus(ndr_err
);
340 if (logon29
.domain
) {
341 status
= dsgetdcname_cache_store(mem_ctx
, logon29
.domain
, &blob
);
342 if (!NT_STATUS_IS_OK(status
)) {
345 if (logon29
.client_site
) {
346 sitename_store(logon29
.domain
, logon29
.client_site
);
349 if (logon29
.dns_domain
) {
350 status
= dsgetdcname_cache_store(mem_ctx
, logon29
.dns_domain
, &blob
);
351 if (!NT_STATUS_IS_OK(status
)) {
354 if (logon29
.client_site
) {
355 sitename_store(logon29
.dns_domain
, logon29
.client_site
);
359 status
= NT_STATUS_OK
;
362 data_blob_free(&blob
);
367 /****************************************************************
368 ****************************************************************/
370 static NTSTATUS
dsgetdcname_cache_refresh(TALLOC_CTX
*mem_ctx
,
371 struct messaging_context
*msg_ctx
,
372 const char *domain_name
,
373 struct GUID
*domain_guid
,
375 const char *site_name
,
376 struct netr_DsRGetDCNameInfo
*info
)
378 struct netr_DsRGetDCNameInfo
*dc_info
;
380 return dsgetdcname(mem_ctx
,
385 flags
| DS_FORCE_REDISCOVERY
,
389 /****************************************************************
390 ****************************************************************/
392 static uint32_t get_cldap_reply_server_flags(union nbt_cldap_netlogon
*r
,
395 switch (nt_version
& 0x0000001f) {
405 return r
->logon3
.server_type
;
410 return r
->logon5
.server_type
;
419 return r
->logon13
.server_type
;
429 return r
->logon15
.server_type
;
433 return r
->logon29
.server_type
;
439 /****************************************************************
440 ****************************************************************/
442 #define RETURN_ON_FALSE(x) if (!x) return false;
444 static bool check_cldap_reply_required_flags(uint32_t ret_flags
,
447 if (ret_flags
== 0) {
451 if (req_flags
& DS_PDC_REQUIRED
)
452 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_PDC
);
454 if (req_flags
& DS_GC_SERVER_REQUIRED
)
455 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_GC
);
457 if (req_flags
& DS_ONLY_LDAP_NEEDED
)
458 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_LDAP
);
460 if ((req_flags
& DS_DIRECTORY_SERVICE_REQUIRED
) ||
461 (req_flags
& DS_DIRECTORY_SERVICE_PREFERRED
))
462 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_DS
);
464 if (req_flags
& DS_KDC_REQUIRED
)
465 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_KDC
);
467 if (req_flags
& DS_TIMESERV_REQUIRED
)
468 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_TIMESERV
);
470 if (req_flags
& DS_WRITABLE_REQUIRED
)
471 RETURN_ON_FALSE(ret_flags
& NBT_SERVER_WRITABLE
);
476 /****************************************************************
477 ****************************************************************/
479 static NTSTATUS
dsgetdcname_cache_fetch(TALLOC_CTX
*mem_ctx
,
480 const char *domain_name
,
481 struct GUID
*domain_guid
,
483 const char *site_name
,
484 struct netr_DsRGetDCNameInfo
**info_p
,
489 enum ndr_err_code ndr_err
;
490 struct netr_DsRGetDCNameInfo
*info
;
491 union nbt_cldap_netlogon p
;
492 struct nbt_cldap_netlogon_29 r
;
495 if (!gencache_init()) {
496 return NT_STATUS_INTERNAL_DB_ERROR
;
499 key
= dsgetdcname_cache_key(mem_ctx
, domain_name
);
501 return NT_STATUS_NO_MEMORY
;
504 if (!gencache_get_data_blob(key
, &blob
, expired
)) {
505 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
508 info
= TALLOC_ZERO_P(mem_ctx
, struct netr_DsRGetDCNameInfo
);
510 return NT_STATUS_NO_MEMORY
;
513 ndr_err
= ndr_pull_struct_blob(&blob
, mem_ctx
, &r
,
514 (ndr_pull_flags_fn_t
)ndr_pull_nbt_cldap_netlogon_29
);
516 data_blob_free(&blob
);
517 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
518 dsgetdcname_cache_delete(mem_ctx
, domain_name
);
519 return ndr_map_error2ntstatus(ndr_err
);
524 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, NULL
,
527 if (!NT_STATUS_IS_OK(status
)) {
531 if (DEBUGLEVEL
>= 10) {
532 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo
, info
);
536 if (!check_cldap_reply_required_flags(info
->dc_flags
, flags
)) {
537 DEBUG(10,("invalid flags\n"));
538 return NT_STATUS_INVALID_PARAMETER
;
541 if ((flags
& DS_IP_REQUIRED
) &&
542 (info
->dc_address_type
!= DS_ADDRESS_TYPE_INET
)) {
543 return NT_STATUS_INVALID_PARAMETER_MIX
;
551 /****************************************************************
552 ****************************************************************/
554 static NTSTATUS
dsgetdcname_cached(TALLOC_CTX
*mem_ctx
,
555 struct messaging_context
*msg_ctx
,
556 const char *domain_name
,
557 struct GUID
*domain_guid
,
559 const char *site_name
,
560 struct netr_DsRGetDCNameInfo
**info
)
563 bool expired
= false;
565 status
= dsgetdcname_cache_fetch(mem_ctx
, domain_name
, domain_guid
,
566 flags
, site_name
, info
, &expired
);
567 if (!NT_STATUS_IS_OK(status
)) {
568 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
570 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
573 if (flags
& DS_BACKGROUND_ONLY
) {
578 status
= dsgetdcname_cache_refresh(mem_ctx
, msg_ctx
,
582 if (!NT_STATUS_IS_OK(status
)) {
590 /****************************************************************
591 ****************************************************************/
593 static bool check_allowed_required_flags(uint32_t flags
,
594 const char *site_name
)
596 uint32_t return_type
= flags
& (DS_RETURN_FLAT_NAME
|DS_RETURN_DNS_NAME
);
597 uint32_t offered_type
= flags
& (DS_IS_FLAT_NAME
|DS_IS_DNS_NAME
);
598 uint32_t query_type
= flags
& (DS_BACKGROUND_ONLY
|DS_FORCE_REDISCOVERY
);
600 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
601 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
603 debug_dsdcinfo_flags(10, flags
);
605 if ((flags
& DS_TRY_NEXTCLOSEST_SITE
) && site_name
) {
609 if (return_type
== (DS_RETURN_FLAT_NAME
|DS_RETURN_DNS_NAME
)) {
613 if (offered_type
== (DS_IS_DNS_NAME
|DS_IS_FLAT_NAME
)) {
617 if (query_type
== (DS_BACKGROUND_ONLY
|DS_FORCE_REDISCOVERY
)) {
622 if ((flags
& DS_RETURN_DNS_NAME
) && (!(flags
& DS_IP_REQUIRED
))) {
623 printf("gd: here5 \n");
630 /****************************************************************
631 ****************************************************************/
633 static NTSTATUS
discover_dc_netbios(TALLOC_CTX
*mem_ctx
,
634 const char *domain_name
,
636 struct ip_service_name
**returned_dclist
,
640 enum nbt_name_type name_type
= NBT_NAME_LOGON
;
641 struct ip_service
*iplist
;
643 struct ip_service_name
*dclist
= NULL
;
646 *returned_dclist
= NULL
;
649 if (lp_disable_netbios()) {
650 return NT_STATUS_NOT_SUPPORTED
;
653 if (flags
& DS_PDC_REQUIRED
) {
654 name_type
= NBT_NAME_PDC
;
657 status
= internal_resolve_name(domain_name
, name_type
, NULL
,
659 "lmhosts wins bcast");
660 if (!NT_STATUS_IS_OK(status
)) {
661 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
665 dclist
= TALLOC_ZERO_ARRAY(mem_ctx
, struct ip_service_name
, count
);
667 return NT_STATUS_NO_MEMORY
;
670 for (i
=0; i
<count
; i
++) {
672 char addr
[INET6_ADDRSTRLEN
];
673 struct ip_service_name
*r
= &dclist
[i
];
675 print_sockaddr(addr
, sizeof(addr
),
678 r
->ss
= iplist
[i
].ss
;
679 r
->port
= iplist
[i
].port
;
680 r
->hostname
= talloc_strdup(mem_ctx
, addr
);
682 return NT_STATUS_NO_MEMORY
;
687 *returned_dclist
= dclist
;
688 *returned_count
= count
;
693 /****************************************************************
694 ****************************************************************/
696 static NTSTATUS
discover_dc_dns(TALLOC_CTX
*mem_ctx
,
697 const char *domain_name
,
698 struct GUID
*domain_guid
,
700 const char *site_name
,
701 struct ip_service_name
**returned_dclist
,
706 struct dns_rr_srv
*dcs
= NULL
;
709 struct ip_service_name
*dclist
= NULL
;
712 if (flags
& DS_PDC_REQUIRED
) {
713 status
= ads_dns_query_pdc(mem_ctx
, domain_name
,
715 } else if (flags
& DS_GC_SERVER_REQUIRED
) {
716 status
= ads_dns_query_gcs(mem_ctx
, domain_name
, site_name
,
718 } else if (flags
& DS_KDC_REQUIRED
) {
719 status
= ads_dns_query_kdcs(mem_ctx
, domain_name
, site_name
,
721 } else if (flags
& DS_DIRECTORY_SERVICE_REQUIRED
) {
722 status
= ads_dns_query_dcs(mem_ctx
, domain_name
, site_name
,
724 } else if (domain_guid
) {
725 status
= ads_dns_query_dcs_guid(mem_ctx
, domain_name
,
726 domain_guid
, &dcs
, &numdcs
);
728 status
= ads_dns_query_dcs(mem_ctx
, domain_name
, site_name
,
732 if (!NT_STATUS_IS_OK(status
)) {
737 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
740 for (i
=0;i
<numdcs
;i
++) {
741 numaddrs
+= MAX(dcs
[i
].num_ips
,1);
744 dclist
= TALLOC_ZERO_ARRAY(mem_ctx
,
745 struct ip_service_name
,
748 return NT_STATUS_NO_MEMORY
;
751 /* now unroll the list of IP addresses */
757 while ((i
< numdcs
) && (count
< numaddrs
)) {
759 struct ip_service_name
*r
= &dclist
[count
];
761 r
->port
= dcs
[count
].port
;
762 r
->hostname
= dcs
[count
].hostname
;
764 /* If we don't have an IP list for a name, lookup it up */
767 interpret_string_addr(&r
->ss
, dcs
[i
].hostname
, 0);
771 /* use the IP addresses from the SRV sresponse */
773 if (j
>= dcs
[i
].num_ips
) {
779 r
->ss
= dcs
[i
].ss_s
[j
];
783 /* make sure it is a valid IP. I considered checking the
784 * negative connection cache, but this is the wrong place for
785 * it. Maybe only as a hac. After think about it, if all of
786 * the IP addresses retuend from DNS are dead, what hope does a
787 * netbios name lookup have? The standard reason for falling
788 * back to netbios lookups is that our DNS server doesn't know
789 * anything about the DC's -- jerry */
791 if (!is_zero_addr(&r
->ss
)) {
797 *returned_dclist
= dclist
;
798 *return_count
= count
;
804 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
807 /****************************************************************
808 ****************************************************************/
810 static NTSTATUS
make_domain_controller_info(TALLOC_CTX
*mem_ctx
,
812 const char *dc_address
,
813 uint32_t dc_address_type
,
814 const struct GUID
*domain_guid
,
815 const char *domain_name
,
816 const char *forest_name
,
818 const char *dc_site_name
,
819 const char *client_site_name
,
820 struct netr_DsRGetDCNameInfo
**info_out
)
822 struct netr_DsRGetDCNameInfo
*info
;
824 info
= TALLOC_ZERO_P(mem_ctx
, struct netr_DsRGetDCNameInfo
);
825 NT_STATUS_HAVE_NO_MEMORY(info
);
828 info
->dc_unc
= talloc_strdup(mem_ctx
, dc_unc
);
829 NT_STATUS_HAVE_NO_MEMORY(info
->dc_unc
);
833 if (!(dc_address
[0] == '\\' && dc_address
[1] == '\\')) {
834 info
->dc_address
= talloc_asprintf(mem_ctx
, "\\\\%s",
837 info
->dc_address
= talloc_strdup(mem_ctx
, dc_address
);
839 NT_STATUS_HAVE_NO_MEMORY(info
->dc_address
);
842 info
->dc_address_type
= dc_address_type
;
845 info
->domain_guid
= *domain_guid
;
849 info
->domain_name
= talloc_strdup(mem_ctx
, domain_name
);
850 NT_STATUS_HAVE_NO_MEMORY(info
->domain_name
);
853 if (forest_name
&& *forest_name
) {
854 info
->forest_name
= talloc_strdup(mem_ctx
, forest_name
);
855 NT_STATUS_HAVE_NO_MEMORY(info
->forest_name
);
856 flags
|= DS_DNS_FOREST
;
859 info
->dc_flags
= flags
;
862 info
->dc_site_name
= talloc_strdup(mem_ctx
, dc_site_name
);
863 NT_STATUS_HAVE_NO_MEMORY(info
->dc_site_name
);
866 if (client_site_name
) {
867 info
->client_site_name
= talloc_strdup(mem_ctx
,
869 NT_STATUS_HAVE_NO_MEMORY(info
->client_site_name
);
877 /****************************************************************
878 ****************************************************************/
880 static void map_dc_and_domain_names(uint32_t flags
,
882 const char *domain_name
,
883 const char *dns_dc_name
,
884 const char *dns_domain_name
,
886 const char **hostname_p
,
887 const char **domain_p
)
889 switch (flags
& 0xf0000000) {
890 case DS_RETURN_FLAT_NAME
:
891 if (dc_name
&& domain_name
&&
892 *dc_name
&& *domain_name
) {
893 *hostname_p
= dc_name
;
894 *domain_p
= domain_name
;
897 case DS_RETURN_DNS_NAME
:
899 if (dns_dc_name
&& dns_domain_name
&&
900 *dns_dc_name
&& *dns_domain_name
) {
901 *hostname_p
= dns_dc_name
;
902 *domain_p
= dns_domain_name
;
903 *dc_flags
|= DS_DNS_DOMAIN
| DS_DNS_CONTROLLER
;
906 if (dc_name
&& domain_name
&&
907 *dc_name
&& *domain_name
) {
908 *hostname_p
= dc_name
;
909 *domain_p
= domain_name
;
915 /****************************************************************
916 ****************************************************************/
918 static NTSTATUS
make_dc_info_from_cldap_reply(TALLOC_CTX
*mem_ctx
,
920 struct sockaddr_storage
*ss
,
922 union nbt_cldap_netlogon
*r
,
923 struct netr_DsRGetDCNameInfo
**info
)
925 const char *dc_hostname
= NULL
;
926 const char *dc_domain_name
= NULL
;
927 const char *dc_address
= NULL
;
928 const char *dc_forest
= NULL
;
929 uint32_t dc_address_type
= 0;
930 uint32_t dc_flags
= 0;
931 struct GUID
*dc_domain_guid
= NULL
;
932 const char *dc_server_site
= NULL
;
933 const char *dc_client_site
= NULL
;
935 char addr
[INET6_ADDRSTRLEN
];
938 print_sockaddr(addr
, sizeof(addr
), ss
);
940 dc_address_type
= DS_ADDRESS_TYPE_INET
;
943 switch (nt_version
& 0x0000001f) {
949 dc_address
= r
->logon1
.pdc_name
;
950 dc_address_type
= DS_ADDRESS_TYPE_NETBIOS
;
953 map_dc_and_domain_names(flags
,
955 r
->logon1
.domain_name
,
962 if (flags
& DS_PDC_REQUIRED
) {
963 dc_flags
= NBT_SERVER_WRITABLE
| NBT_SERVER_PDC
;
971 dc_address
= r
->logon3
.pdc_ip
;
972 dc_address_type
= DS_ADDRESS_TYPE_INET
;
975 map_dc_and_domain_names(flags
,
977 r
->logon3
.domain_name
,
978 r
->logon3
.pdc_dns_name
,
979 r
->logon3
.dns_domain
,
984 dc_flags
|= r
->logon3
.server_type
;
985 dc_forest
= r
->logon3
.forest
;
986 dc_domain_guid
= &r
->logon3
.domain_uuid
;
994 dc_address
= r
->logon5
.pdc_name
;
995 dc_address_type
= DS_ADDRESS_TYPE_NETBIOS
;
998 map_dc_and_domain_names(flags
,
1001 r
->logon5
.pdc_dns_name
,
1002 r
->logon5
.dns_domain
,
1007 dc_flags
|= r
->logon5
.server_type
;
1008 dc_forest
= r
->logon5
.forest
;
1009 dc_domain_guid
= &r
->logon5
.domain_uuid
;
1010 dc_server_site
= r
->logon5
.server_site
;
1011 dc_client_site
= r
->logon5
.client_site
;
1023 dc_address
= r
->logon13
.dc_sock_addr
.pdc_ip
;
1024 dc_address_type
= DS_ADDRESS_TYPE_INET
;
1027 map_dc_and_domain_names(flags
,
1028 r
->logon13
.pdc_name
,
1030 r
->logon13
.pdc_dns_name
,
1031 r
->logon13
.dns_domain
,
1036 dc_flags
|= r
->logon13
.server_type
;
1037 dc_forest
= r
->logon13
.forest
;
1038 dc_domain_guid
= &r
->logon13
.domain_uuid
;
1039 dc_server_site
= r
->logon13
.server_site
;
1040 dc_client_site
= r
->logon13
.client_site
;
1053 dc_address
= r
->logon15
.pdc_name
;
1054 dc_address_type
= DS_ADDRESS_TYPE_NETBIOS
;
1057 map_dc_and_domain_names(flags
,
1058 r
->logon15
.pdc_name
,
1060 r
->logon15
.pdc_dns_name
,
1061 r
->logon15
.dns_domain
,
1066 dc_flags
|= r
->logon15
.server_type
;
1067 dc_forest
= r
->logon15
.forest
;
1068 dc_domain_guid
= &r
->logon15
.domain_uuid
;
1069 dc_server_site
= r
->logon15
.server_site
;
1070 dc_client_site
= r
->logon15
.client_site
;
1077 dc_address
= r
->logon29
.dc_sock_addr
.pdc_ip
;
1078 dc_address_type
= DS_ADDRESS_TYPE_INET
;
1081 map_dc_and_domain_names(flags
,
1082 r
->logon29
.pdc_name
,
1084 r
->logon29
.pdc_dns_name
,
1085 r
->logon29
.dns_domain
,
1090 dc_flags
|= r
->logon29
.server_type
;
1091 dc_forest
= r
->logon29
.forest
;
1092 dc_domain_guid
= &r
->logon29
.domain_uuid
;
1093 dc_server_site
= r
->logon29
.server_site
;
1094 dc_client_site
= r
->logon29
.client_site
;
1098 return NT_STATUS_INVALID_PARAMETER
;
1101 return make_domain_controller_info(mem_ctx
,
1114 /****************************************************************
1115 ****************************************************************/
1117 static uint32_t map_ds_flags_to_nt_version(uint32_t flags
)
1119 uint32_t nt_version
= 0;
1121 if (flags
& DS_PDC_REQUIRED
) {
1122 nt_version
|= NETLOGON_VERSION_PDC
;
1125 if (flags
& DS_GC_SERVER_REQUIRED
) {
1126 nt_version
|= NETLOGON_VERSION_GC
;
1129 if (flags
& DS_TRY_NEXTCLOSEST_SITE
) {
1130 nt_version
|= NETLOGON_VERSION_WITH_CLOSEST_SITE
;
1133 if (flags
& DS_IP_REQUIRED
) {
1134 nt_version
|= NETLOGON_VERSION_IP
;
1140 /****************************************************************
1141 ****************************************************************/
1143 static NTSTATUS
process_dc_dns(TALLOC_CTX
*mem_ctx
,
1144 const char *domain_name
,
1146 struct ip_service_name
*dclist
,
1148 struct netr_DsRGetDCNameInfo
**info
)
1151 bool valid_dc
= false;
1152 union nbt_cldap_netlogon
*r
= NULL
;
1153 uint32_t nt_version
= NETLOGON_VERSION_5
|
1154 NETLOGON_VERSION_5EX
;
1155 uint32_t ret_flags
= 0;
1158 nt_version
|= map_ds_flags_to_nt_version(flags
);
1160 for (i
=0; i
<num_dcs
; i
++) {
1162 DEBUG(10,("LDAP ping to %s\n", dclist
[i
].hostname
));
1164 if (ads_cldap_netlogon(mem_ctx
, dclist
[i
].hostname
,
1169 ret_flags
= get_cldap_reply_server_flags(r
, nt_version
);
1171 if (check_cldap_reply_required_flags(ret_flags
, flags
)) {
1181 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1184 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
1185 nt_version
, r
, info
);
1186 if (NT_STATUS_IS_OK(status
)) {
1187 return store_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
1194 /****************************************************************
1195 ****************************************************************/
1197 static struct event_context
*ev_context(void)
1199 static struct event_context
*ctx
;
1201 if (!ctx
&& !(ctx
= event_context_init(NULL
))) {
1202 smb_panic("Could not init event context");
1207 /****************************************************************
1208 ****************************************************************/
1210 static struct messaging_context
*msg_context(TALLOC_CTX
*mem_ctx
)
1212 static struct messaging_context
*ctx
;
1214 if (!ctx
&& !(ctx
= messaging_init(mem_ctx
, server_id_self(),
1216 smb_panic("Could not init messaging context");
1221 /****************************************************************
1222 ****************************************************************/
1224 static NTSTATUS
process_dc_netbios(TALLOC_CTX
*mem_ctx
,
1225 struct messaging_context
*msg_ctx
,
1226 const char *domain_name
,
1228 struct ip_service_name
*dclist
,
1230 struct netr_DsRGetDCNameInfo
**info
)
1232 struct sockaddr_storage ss
;
1233 struct ip_service ip_list
;
1234 enum nbt_name_type name_type
= NBT_NAME_LOGON
;
1237 const char *dc_name
= NULL
;
1238 fstring tmp_dc_name
;
1239 union nbt_cldap_netlogon
*r
= NULL
;
1240 bool store_cache
= false;
1241 uint32_t nt_version
= NETLOGON_VERSION_1
|
1242 NETLOGON_VERSION_5
|
1243 NETLOGON_VERSION_5EX_WITH_IP
;
1246 msg_ctx
= msg_context(mem_ctx
);
1249 if (flags
& DS_PDC_REQUIRED
) {
1250 name_type
= NBT_NAME_PDC
;
1253 nt_version
|= map_ds_flags_to_nt_version(flags
);
1255 DEBUG(10,("process_dc_netbios\n"));
1257 for (i
=0; i
<num_dcs
; i
++) {
1259 ip_list
.ss
= dclist
[i
].ss
;
1262 if (!interpret_string_addr(&ss
, dclist
[i
].hostname
, AI_NUMERICHOST
)) {
1263 return NT_STATUS_UNSUCCESSFUL
;
1266 if (send_getdc_request(mem_ctx
, msg_ctx
,
1267 &dclist
[i
].ss
, domain_name
,
1272 for (k
=0; k
<5; k
++) {
1273 if (receive_getdc_response(mem_ctx
,
1280 namecache_store(dc_name
, NBT_NAME_SERVER
, 1, &ip_list
);
1287 if (name_status_find(domain_name
,
1293 struct nbt_cldap_netlogon_1 logon1
;
1295 r
= TALLOC_ZERO_P(mem_ctx
, union nbt_cldap_netlogon
);
1296 NT_STATUS_HAVE_NO_MEMORY(r
);
1298 ZERO_STRUCT(logon1
);
1300 nt_version
= NETLOGON_VERSION_1
;
1302 logon1
.nt_version
= nt_version
;
1303 logon1
.pdc_name
= tmp_dc_name
;
1304 logon1
.domain_name
= talloc_strdup_upper(mem_ctx
, domain_name
);
1305 NT_STATUS_HAVE_NO_MEMORY(logon1
.domain_name
);
1309 namecache_store(tmp_dc_name
, NBT_NAME_SERVER
, 1, &ip_list
);
1315 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1319 status
= make_dc_info_from_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
1320 nt_version
, r
, info
);
1321 if (NT_STATUS_IS_OK(status
) && store_cache
) {
1322 return store_cldap_reply(mem_ctx
, flags
, &dclist
[i
].ss
,
1329 /****************************************************************
1330 ****************************************************************/
1332 static NTSTATUS
dsgetdcname_rediscover(TALLOC_CTX
*mem_ctx
,
1333 struct messaging_context
*msg_ctx
,
1334 const char *domain_name
,
1335 struct GUID
*domain_guid
,
1337 const char *site_name
,
1338 struct netr_DsRGetDCNameInfo
**info
)
1340 NTSTATUS status
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1341 struct ip_service_name
*dclist
= NULL
;
1344 DEBUG(10,("dsgetdcname_rediscover\n"));
1346 if (flags
& DS_IS_FLAT_NAME
) {
1348 status
= discover_dc_netbios(mem_ctx
, domain_name
, flags
,
1350 NT_STATUS_NOT_OK_RETURN(status
);
1352 return process_dc_netbios(mem_ctx
, msg_ctx
, domain_name
, flags
,
1353 dclist
, num_dcs
, info
);
1356 if (flags
& DS_IS_DNS_NAME
) {
1358 status
= discover_dc_dns(mem_ctx
, domain_name
, domain_guid
,
1359 flags
, site_name
, &dclist
, &num_dcs
);
1360 NT_STATUS_NOT_OK_RETURN(status
);
1362 return process_dc_dns(mem_ctx
, domain_name
, flags
,
1363 dclist
, num_dcs
, info
);
1366 status
= discover_dc_dns(mem_ctx
, domain_name
, domain_guid
, flags
,
1367 site_name
, &dclist
, &num_dcs
);
1369 if (NT_STATUS_IS_OK(status
) && num_dcs
!= 0) {
1371 status
= process_dc_dns(mem_ctx
, domain_name
, flags
, dclist
,
1373 if (NT_STATUS_IS_OK(status
)) {
1378 status
= discover_dc_netbios(mem_ctx
, domain_name
, flags
, &dclist
,
1380 NT_STATUS_NOT_OK_RETURN(status
);
1382 return process_dc_netbios(mem_ctx
, msg_ctx
, domain_name
, flags
, dclist
,
1386 /********************************************************************
1389 This will be the only public function here.
1390 ********************************************************************/
1392 NTSTATUS
dsgetdcname(TALLOC_CTX
*mem_ctx
,
1393 struct messaging_context
*msg_ctx
,
1394 const char *domain_name
,
1395 struct GUID
*domain_guid
,
1396 const char *site_name
,
1398 struct netr_DsRGetDCNameInfo
**info
)
1400 NTSTATUS status
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1401 struct netr_DsRGetDCNameInfo
*myinfo
= NULL
;
1402 char *query_site
= NULL
;
1404 DEBUG(10,("dsgetdcname: domain_name: %s, "
1405 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
1407 domain_guid
? GUID_string(mem_ctx
, domain_guid
) : "(null)",
1412 if (!check_allowed_required_flags(flags
, site_name
)) {
1413 DEBUG(0,("invalid flags specified\n"));
1414 return NT_STATUS_INVALID_PARAMETER
;
1418 query_site
= sitename_fetch(domain_name
);
1420 query_site
= SMB_STRDUP(site_name
);
1423 if (flags
& DS_FORCE_REDISCOVERY
) {
1427 status
= dsgetdcname_cached(mem_ctx
, msg_ctx
, domain_name
, domain_guid
,
1428 flags
, query_site
, &myinfo
);
1429 if (NT_STATUS_IS_OK(status
)) {
1434 if (flags
& DS_BACKGROUND_ONLY
) {
1439 status
= dsgetdcname_rediscover(mem_ctx
, msg_ctx
, domain_name
,
1440 domain_guid
, flags
, query_site
,
1443 if (NT_STATUS_IS_OK(status
)) {
1448 SAFE_FREE(query_site
);