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)
122 if (!mem_ctx || !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);
205 p->dc_sock_addr_size = 0x10;
206 p->dc_sock_addr.sa_family = 2;
207 p->dc_sock_addr.pdc_ip = talloc_strdup(mem_ctx, addr);
209 switch (nt_version & 0x000000ff) {
211 return NT_STATUS_INVALID_PARAMETER;
213 p->pdc_name = SET_STRING(r->logon1.pdc_name);
214 p->domain = SET_STRING(r->logon1.domain_name);
216 if (flags & DS_PDC_REQUIRED) {
217 p->server_type = NBT_SERVER_WRITABLE |
223 p->pdc_name = SET_STRING(r->logon3.pdc_name);
224 p->domain = SET_STRING(r->logon3.domain_name);
225 p->pdc_dns_name = SET_STRING(r->logon3.pdc_dns_name);
226 p->dns_domain = SET_STRING(r->logon3.dns_domain);
227 p->server_type = r->logon3.server_type;
228 p->forest = SET_STRING(r->logon3.forest);
229 p->domain_uuid = r->logon3.domain_uuid;
236 p->pdc_name = SET_STRING(r->logon5.pdc_name);
237 p->domain = SET_STRING(r->logon5.domain);
238 p->pdc_dns_name = SET_STRING(r->logon5.pdc_dns_name);
239 p->dns_domain = SET_STRING(r->logon5.dns_domain);
240 p->server_type = r->logon5.server_type;
241 p->forest = SET_STRING(r->logon5.forest);
242 p->domain_uuid = r->logon5.domain_uuid;
243 p->server_site = SET_STRING(r->logon5.server_site);
244 p->client_site = SET_STRING(r->logon5.client_site);
255 p->pdc_name = SET_STRING(r->logon13.pdc_name);
256 p->domain = SET_STRING(r->logon13.domain);
257 p->pdc_dns_name = SET_STRING(r->logon13.pdc_dns_name);
258 p->dns_domain = SET_STRING(r->logon13.dns_domain);
259 p->server_type = r->logon13.server_type;
260 p->forest = SET_STRING(r->logon13.forest);
261 p->domain_uuid = r->logon13.domain_uuid;
262 p->server_site = SET_STRING(r->logon13.server_site);
263 p->client_site = SET_STRING(r->logon13.client_site);
267 p->pdc_name = SET_STRING(r->logon29.pdc_name);
268 p->domain = SET_STRING(r->logon29.domain);
269 p->pdc_dns_name = SET_STRING(r->logon29.pdc_dns_name);
270 p->dns_domain = SET_STRING(r->logon29.dns_domain);
271 p->server_type = r->logon29.server_type;
272 p->forest = SET_STRING(r->logon29.forest);
273 p->domain_uuid = r->logon29.domain_uuid;
274 p->server_site = SET_STRING(r->logon29.server_site);
275 p->client_site = SET_STRING(r->logon29.client_site);
276 p->next_closest_site = SET_STRING(r->logon29.next_closest_site);
284 /****************************************************************
285 ****************************************************************/
287 static NTSTATUS store_cldap_reply(TALLOC_CTX *mem_ctx,
289 struct sockaddr_storage *ss,
291 union nbt_cldap_netlogon *r)
294 enum ndr_err_code ndr_err;
296 struct nbt_cldap_netlogon_29 logon29;
298 status = map_logon29_from_cldap_reply(mem_ctx, flags, ss,
299 nt_version, r, &logon29);
300 if (!NT_STATUS_IS_OK(status)) {
304 ndr_err = ndr_push_struct_blob(&blob, mem_ctx, &logon29,
305 (ndr_push_flags_fn_t)ndr_push_nbt_cldap_netlogon_29);
306 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
307 return ndr_map_error2ntstatus(ndr_err);
310 if (logon29.domain) {
311 status = dsgetdcname_cache_store(mem_ctx, logon29.domain, &blob);
312 if (!NT_STATUS_IS_OK(status)) {
316 if (logon29.dns_domain) {
317 status = dsgetdcname_cache_store(mem_ctx, logon29.dns_domain, &blob);
318 if (!NT_STATUS_IS_OK(status)) {
324 data_blob_free(&blob);
329 /****************************************************************
330 ****************************************************************/
332 static NTSTATUS dsgetdcname_cache_refresh(TALLOC_CTX *mem_ctx,
333 const char *domain_name,
334 struct GUID *domain_guid,
336 const char *site_name,
337 struct netr_DsRGetDCNameInfo *info)
339 struct netr_DsRGetDCNameInfo *dc_info;
341 return dsgetdcname(mem_ctx,
345 flags | DS_FORCE_REDISCOVERY,
349 /****************************************************************
350 ****************************************************************/
352 static uint32_t get_cldap_reply_server_flags(union nbt_cldap_netlogon *r,
355 switch (nt_version & 0x000000ff) {
361 return r->logon3.server_type;
366 return r->logon5.server_type;
375 return r->logon13.server_type;
377 return r->logon29.server_type;
381 /****************************************************************
382 ****************************************************************/
384 #define RETURN_ON_FALSE(x) if (!x) return false;
386 static bool check_cldap_reply_required_flags(uint32_t ret_flags,
389 if (ret_flags == 0) {
393 if (req_flags & DS_PDC_REQUIRED)
394 RETURN_ON_FALSE(ret_flags & NBT_SERVER_PDC);
396 if (req_flags & DS_GC_SERVER_REQUIRED)
397 RETURN_ON_FALSE(ret_flags & NBT_SERVER_GC);
399 if (req_flags & DS_ONLY_LDAP_NEEDED)
400 RETURN_ON_FALSE(ret_flags & NBT_SERVER_LDAP);
402 if ((req_flags & DS_DIRECTORY_SERVICE_REQUIRED) ||
403 (req_flags & DS_DIRECTORY_SERVICE_PREFERRED))
404 RETURN_ON_FALSE(ret_flags & NBT_SERVER_DS);
406 if (req_flags & DS_KDC_REQUIRED)
407 RETURN_ON_FALSE(ret_flags & NBT_SERVER_KDC);
409 if (req_flags & DS_TIMESERV_REQUIRED)
410 RETURN_ON_FALSE(ret_flags & NBT_SERVER_TIMESERV);
412 if (req_flags & DS_WRITABLE_REQUIRED)
413 RETURN_ON_FALSE(ret_flags & NBT_SERVER_WRITABLE);
418 /****************************************************************
419 ****************************************************************/
421 static NTSTATUS dsgetdcname_cache_fetch(TALLOC_CTX *mem_ctx,
422 const char *domain_name,
423 struct GUID *domain_guid,
425 const char *site_name,
426 struct netr_DsRGetDCNameInfo **info_p,
431 enum ndr_err_code ndr_err;
432 struct netr_DsRGetDCNameInfo *info;
433 union nbt_cldap_netlogon p;
434 struct nbt_cldap_netlogon_29 r;
437 if (!gencache_init()) {
438 return NT_STATUS_INTERNAL_DB_ERROR;
441 key = dsgetdcname_cache_key(mem_ctx, domain_name);
443 return NT_STATUS_NO_MEMORY;
446 if (!gencache_get_data_blob(key, &blob, expired)) {
447 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
450 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
452 return NT_STATUS_NO_MEMORY;
455 ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, &r,
456 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon_29);
458 data_blob_free(&blob);
459 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
460 dsgetdcname_cache_delete(mem_ctx, domain_name);
461 return ndr_map_error2ntstatus(ndr_err);
466 status = make_dc_info_from_cldap_reply(mem_ctx, flags, NULL,
467 NETLOGON_VERSION_WITH_CLOSEST_SITE,
469 if (!NT_STATUS_IS_OK(status)) {
473 if (DEBUGLEVEL >= 10) {
474 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo, info);
478 if (!check_cldap_reply_required_flags(info->dc_flags, flags)) {
479 DEBUG(10,("invalid flags\n"));
480 return NT_STATUS_INVALID_PARAMETER;
483 if ((flags & DS_IP_REQUIRED) &&
484 (info->dc_address_type != DS_ADDRESS_TYPE_INET)) {
485 return NT_STATUS_INVALID_PARAMETER_MIX;
493 /****************************************************************
494 ****************************************************************/
496 static NTSTATUS dsgetdcname_cached(TALLOC_CTX *mem_ctx,
497 const char *domain_name,
498 struct GUID *domain_guid,
500 const char *site_name,
501 struct netr_DsRGetDCNameInfo **info)
504 bool expired = false;
506 status = dsgetdcname_cache_fetch(mem_ctx, domain_name, domain_guid,
507 flags, site_name, info, &expired);
508 if (!NT_STATUS_IS_OK(status)) {
509 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
511 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
514 if (flags & DS_BACKGROUND_ONLY) {
519 status = dsgetdcname_cache_refresh(mem_ctx, domain_name,
522 if (!NT_STATUS_IS_OK(status)) {
530 /****************************************************************
531 ****************************************************************/
533 static bool check_allowed_required_flags(uint32_t flags)
535 uint32_t return_type = flags & (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME);
536 uint32_t offered_type = flags & (DS_IS_FLAT_NAME|DS_IS_DNS_NAME);
537 uint32_t query_type = flags & (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY);
539 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
540 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
542 debug_dsdcinfo_flags(10, flags);
544 if (return_type == (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME)) {
548 if (offered_type == (DS_IS_DNS_NAME|DS_IS_FLAT_NAME)) {
552 if (query_type == (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY)) {
557 if ((flags & DS_RETURN_DNS_NAME) && (!(flags & DS_IP_REQUIRED))) {
558 printf("gd: here5 \n");
565 /****************************************************************
566 ****************************************************************/
568 static NTSTATUS discover_dc_netbios(TALLOC_CTX *mem_ctx,
569 const char *domain_name,
571 struct ip_service_name **returned_dclist,
575 enum nbt_name_type name_type = NBT_NAME_LOGON;
576 struct ip_service *iplist;
578 struct ip_service_name *dclist = NULL;
581 *returned_dclist = NULL;
584 if (lp_disable_netbios()) {
585 return NT_STATUS_NOT_SUPPORTED;
588 if (flags & DS_PDC_REQUIRED) {
589 name_type = NBT_NAME_PDC;
592 status = internal_resolve_name(domain_name, name_type, NULL,
594 "lmhosts wins bcast");
595 if (!NT_STATUS_IS_OK(status)) {
596 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
600 dclist = TALLOC_ZERO_ARRAY(mem_ctx, struct ip_service_name, count);
602 return NT_STATUS_NO_MEMORY;
605 for (i=0; i<count; i++) {
607 char addr[INET6_ADDRSTRLEN];
608 struct ip_service_name *r = &dclist[i];
610 print_sockaddr(addr, sizeof(addr),
613 r->ss = iplist[i].ss;
614 r->port = iplist[i].port;
615 r->hostname = talloc_strdup(mem_ctx, addr);
617 return NT_STATUS_NO_MEMORY;
622 *returned_dclist = dclist;
623 *returned_count = count;
628 /****************************************************************
629 ****************************************************************/
631 static NTSTATUS discover_dc_dns(TALLOC_CTX *mem_ctx,
632 const char *domain_name,
633 struct GUID *domain_guid,
635 const char *site_name,
636 struct ip_service_name **returned_dclist,
641 struct dns_rr_srv *dcs = NULL;
644 struct ip_service_name *dclist = NULL;
647 if (flags & DS_PDC_REQUIRED) {
648 status = ads_dns_query_pdc(mem_ctx, domain_name,
650 } else if (flags & DS_GC_SERVER_REQUIRED) {
651 status = ads_dns_query_gcs(mem_ctx, domain_name, site_name,
653 } else if (flags & DS_KDC_REQUIRED) {
654 status = ads_dns_query_kdcs(mem_ctx, domain_name, site_name,
656 } else if (flags & DS_DIRECTORY_SERVICE_REQUIRED) {
657 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
659 } else if (domain_guid) {
660 status = ads_dns_query_dcs_guid(mem_ctx, domain_name,
661 domain_guid, &dcs, &numdcs);
663 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
667 if (!NT_STATUS_IS_OK(status)) {
672 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
675 for (i=0;i<numdcs;i++) {
676 numaddrs += MAX(dcs[i].num_ips,1);
679 dclist = TALLOC_ZERO_ARRAY(mem_ctx,
680 struct ip_service_name,
683 return NT_STATUS_NO_MEMORY;
686 /* now unroll the list of IP addresses */
692 while ((i < numdcs) && (count < numaddrs)) {
694 struct ip_service_name *r = &dclist[count];
696 r->port = dcs[count].port;
697 r->hostname = dcs[count].hostname;
699 /* If we don't have an IP list for a name, lookup it up */
702 interpret_string_addr(&r->ss, dcs[i].hostname, 0);
706 /* use the IP addresses from the SRV sresponse */
708 if (j >= dcs[i].num_ips) {
714 r->ss = dcs[i].ss_s[j];
718 /* make sure it is a valid IP. I considered checking the
719 * negative connection cache, but this is the wrong place for
720 * it. Maybe only as a hac. After think about it, if all of
721 * the IP addresses retuend from DNS are dead, what hope does a
722 * netbios name lookup have? The standard reason for falling
723 * back to netbios lookups is that our DNS server doesn't know
724 * anything about the DC's -- jerry */
726 if (!is_zero_addr(&r->ss)) {
732 *returned_dclist = dclist;
733 *return_count = count;
739 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
742 /****************************************************************
743 ****************************************************************/
745 static NTSTATUS make_domain_controller_info(TALLOC_CTX *mem_ctx,
747 const char *dc_address,
748 uint32_t dc_address_type,
749 const struct GUID *domain_guid,
750 const char *domain_name,
751 const char *forest_name,
753 const char *dc_site_name,
754 const char *client_site_name,
755 struct netr_DsRGetDCNameInfo **info_out)
757 struct netr_DsRGetDCNameInfo *info;
759 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
760 NT_STATUS_HAVE_NO_MEMORY(info);
763 info->dc_unc = talloc_strdup(mem_ctx, dc_unc);
764 NT_STATUS_HAVE_NO_MEMORY(info->dc_unc);
768 if (!(dc_address[0] == '\\' && dc_address[1] == '\\')) {
769 info->dc_address = talloc_asprintf(mem_ctx, "\\\\%s",
772 info->dc_address = talloc_strdup(mem_ctx, dc_address);
774 NT_STATUS_HAVE_NO_MEMORY(info->dc_address);
777 info->dc_address_type = dc_address_type;
780 info->domain_guid = *domain_guid;
784 info->domain_name = talloc_strdup(mem_ctx, domain_name);
785 NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
788 if (forest_name && *forest_name) {
789 info->forest_name = talloc_strdup(mem_ctx, forest_name);
790 NT_STATUS_HAVE_NO_MEMORY(info->forest_name);
791 flags |= DS_DNS_FOREST;
794 info->dc_flags = flags;
797 info->dc_site_name = talloc_strdup(mem_ctx, dc_site_name);
798 NT_STATUS_HAVE_NO_MEMORY(info->dc_site_name);
801 if (client_site_name) {
802 info->client_site_name = talloc_strdup(mem_ctx,
804 NT_STATUS_HAVE_NO_MEMORY(info->client_site_name);
812 /****************************************************************
813 ****************************************************************/
815 static void map_dc_and_domain_names(uint32_t flags,
817 const char *domain_name,
818 const char *dns_dc_name,
819 const char *dns_domain_name,
821 const char **hostname_p,
822 const char **domain_p)
824 switch (flags & 0xf0000000) {
825 case DS_RETURN_FLAT_NAME:
826 if (dc_name && domain_name &&
827 *dc_name && *domain_name) {
828 *hostname_p = dc_name;
829 *domain_p = domain_name;
832 case DS_RETURN_DNS_NAME:
834 if (dns_dc_name && dns_domain_name &&
835 *dns_dc_name && *dns_domain_name) {
836 *hostname_p = dns_dc_name;
837 *domain_p = dns_domain_name;
838 *dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
841 if (dc_name && domain_name &&
842 *dc_name && *domain_name) {
843 *hostname_p = dc_name;
844 *domain_p = domain_name;
850 /****************************************************************
851 ****************************************************************/
853 static NTSTATUS make_dc_info_from_cldap_reply(TALLOC_CTX *mem_ctx,
855 struct sockaddr_storage *ss,
857 union nbt_cldap_netlogon *r,
858 struct netr_DsRGetDCNameInfo **info)
860 const char *dc_hostname, *dc_domain_name;
861 const char *dc_address = NULL;
862 const char *dc_forest = NULL;
863 uint32_t dc_address_type = 0;
864 uint32_t dc_flags = 0;
865 struct GUID *dc_domain_guid = NULL;
866 const char *dc_server_site = NULL;
867 const char *dc_client_site = NULL;
869 char addr[INET6_ADDRSTRLEN];
872 print_sockaddr(addr, sizeof(addr), ss);
874 dc_address_type = DS_ADDRESS_TYPE_INET;
877 switch (nt_version & 0x000000ff) {
879 return NT_STATUS_INVALID_PARAMETER;
882 dc_address = r->logon1.pdc_name;
883 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
886 map_dc_and_domain_names(flags,
888 r->logon1.domain_name,
895 if (flags & DS_PDC_REQUIRED) {
896 dc_flags = NBT_SERVER_WRITABLE | NBT_SERVER_PDC;
902 dc_address = r->logon3.pdc_ip;
903 dc_address_type = DS_ADDRESS_TYPE_INET;
906 map_dc_and_domain_names(flags,
908 r->logon3.domain_name,
909 r->logon3.pdc_dns_name,
910 r->logon3.dns_domain,
915 dc_flags |= r->logon3.server_type;
916 dc_forest = r->logon3.forest;
917 dc_domain_guid = &r->logon3.domain_uuid;
925 dc_address = r->logon5.pdc_name;
926 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
929 map_dc_and_domain_names(flags,
932 r->logon5.pdc_dns_name,
933 r->logon5.dns_domain,
938 dc_flags |= r->logon5.server_type;
939 dc_forest = r->logon5.forest;
940 dc_domain_guid = &r->logon5.domain_uuid;
941 dc_server_site = r->logon5.server_site;
942 dc_client_site = r->logon5.client_site;
954 dc_address = r->logon13.dc_sock_addr.pdc_ip;
955 dc_address_type = DS_ADDRESS_TYPE_INET;
958 map_dc_and_domain_names(flags,
961 r->logon13.pdc_dns_name,
962 r->logon13.dns_domain,
967 dc_flags |= r->logon13.server_type;
968 dc_forest = r->logon13.forest;
969 dc_domain_guid = &r->logon13.domain_uuid;
970 dc_server_site = r->logon13.server_site;
971 dc_client_site = r->logon13.client_site;
976 dc_address = r->logon29.dc_sock_addr.pdc_ip;
977 dc_address_type = DS_ADDRESS_TYPE_INET;
980 map_dc_and_domain_names(flags,
983 r->logon29.pdc_dns_name,
984 r->logon29.dns_domain,
989 dc_flags |= r->logon29.server_type;
990 dc_forest = r->logon29.forest;
991 dc_domain_guid = &r->logon29.domain_uuid;
992 dc_server_site = r->logon29.server_site;
993 dc_client_site = r->logon29.client_site;
998 return make_domain_controller_info(mem_ctx,
1011 /****************************************************************
1012 ****************************************************************/
1014 static uint32_t map_ds_flags_to_nt_version(uint32_t flags)
1016 uint32_t nt_version = 0;
1018 if (flags & DS_PDC_REQUIRED) {
1019 nt_version |= NETLOGON_VERSION_PDC;
1022 if (flags & DS_GC_SERVER_REQUIRED) {
1023 nt_version |= NETLOGON_VERSION_GC;
1026 if (flags & DS_TRY_NEXTCLOSEST_SITE) {
1027 nt_version |= NETLOGON_VERSION_WITH_CLOSEST_SITE;
1030 if (flags & DS_IP_REQUIRED) {
1031 nt_version |= NETLOGON_VERSION_IP;
1037 /****************************************************************
1038 ****************************************************************/
1040 static NTSTATUS process_dc_dns(TALLOC_CTX *mem_ctx,
1041 const char *domain_name,
1043 struct ip_service_name *dclist,
1045 struct netr_DsRGetDCNameInfo **info)
1048 bool valid_dc = false;
1049 union nbt_cldap_netlogon *r = NULL;
1050 uint32_t nt_version = NETLOGON_VERSION_5 |
1051 NETLOGON_VERSION_5EX;
1052 uint32_t ret_flags = 0;
1055 nt_version |= map_ds_flags_to_nt_version(flags);
1057 for (i=0; i<num_dcs; i++) {
1059 DEBUG(10,("LDAP ping to %s\n", dclist[i].hostname));
1061 if (ads_cldap_netlogon(mem_ctx, dclist[i].hostname,
1066 ret_flags = get_cldap_reply_server_flags(r, nt_version);
1068 if (check_cldap_reply_required_flags(ret_flags, flags)) {
1078 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1081 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1082 nt_version, r, info);
1083 if (NT_STATUS_IS_OK(status)) {
1084 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1091 /****************************************************************
1092 ****************************************************************/
1094 static struct event_context *ev_context(void)
1096 static struct event_context *ctx;
1098 if (!ctx && !(ctx = event_context_init(NULL))) {
1099 smb_panic("Could not init event context");
1104 /****************************************************************
1105 ****************************************************************/
1107 static struct messaging_context *msg_context(TALLOC_CTX *mem_ctx)
1109 static struct messaging_context *ctx;
1111 if (!ctx && !(ctx = messaging_init(mem_ctx, server_id_self(),
1113 smb_panic("Could not init messaging context");
1118 /****************************************************************
1119 ****************************************************************/
1121 static NTSTATUS process_dc_netbios(TALLOC_CTX *mem_ctx,
1122 const char *domain_name,
1124 struct ip_service_name *dclist,
1126 struct netr_DsRGetDCNameInfo **info)
1128 struct sockaddr_storage ss;
1129 struct ip_service ip_list;
1130 enum nbt_name_type name_type = NBT_NAME_LOGON;
1133 const char *dc_name = NULL;
1134 fstring tmp_dc_name;
1135 struct messaging_context *msg_ctx = msg_context(mem_ctx);
1136 union nbt_cldap_netlogon *r = NULL;
1137 uint32_t nt_version = NETLOGON_VERSION_1 |
1138 NETLOGON_VERSION_5 |
1139 NETLOGON_VERSION_5EX_WITH_IP;
1141 if (flags & DS_PDC_REQUIRED) {
1142 name_type = NBT_NAME_PDC;
1145 nt_version |= map_ds_flags_to_nt_version(flags);
1147 DEBUG(10,("process_dc_netbios\n"));
1149 for (i=0; i<num_dcs; i++) {
1151 ip_list.ss = dclist[i].ss;
1154 if (!interpret_string_addr(&ss, dclist[i].hostname, AI_NUMERICHOST)) {
1155 return NT_STATUS_UNSUCCESSFUL;
1158 if (send_getdc_request(mem_ctx, msg_ctx,
1159 &dclist[i].ss, domain_name,
1164 for (k=0; k<5; k++) {
1165 if (receive_getdc_response(mem_ctx,
1171 namecache_store(dc_name, NBT_NAME_SERVER, 1, &ip_list);
1178 if (name_status_find(domain_name,
1184 struct nbt_cldap_netlogon_1 logon1;
1186 r = TALLOC_ZERO_P(mem_ctx, union nbt_cldap_netlogon);
1187 NT_STATUS_HAVE_NO_MEMORY(r);
1189 ZERO_STRUCT(logon1);
1191 nt_version = NETLOGON_VERSION_1;
1193 logon1.nt_version = nt_version;
1194 logon1.pdc_name = tmp_dc_name;
1195 logon1.domain_name = talloc_strdup_upper(mem_ctx, domain_name);
1196 NT_STATUS_HAVE_NO_MEMORY(logon1.domain_name);
1200 namecache_store(tmp_dc_name, NBT_NAME_SERVER, 1, &ip_list);
1206 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1210 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1211 nt_version, r, info);
1212 if (NT_STATUS_IS_OK(status)) {
1213 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1220 /****************************************************************
1221 ****************************************************************/
1223 static NTSTATUS dsgetdcname_rediscover(TALLOC_CTX *mem_ctx,
1224 const char *domain_name,
1225 struct GUID *domain_guid,
1227 const char *site_name,
1228 struct netr_DsRGetDCNameInfo **info)
1230 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1231 struct ip_service_name *dclist = NULL;
1234 DEBUG(10,("dsgetdcname_rediscover\n"));
1236 if (flags & DS_IS_FLAT_NAME) {
1238 status = discover_dc_netbios(mem_ctx, domain_name, flags,
1240 NT_STATUS_NOT_OK_RETURN(status);
1242 return process_dc_netbios(mem_ctx, domain_name, flags,
1243 dclist, num_dcs, info);
1246 if (flags & DS_IS_DNS_NAME) {
1248 status = discover_dc_dns(mem_ctx, domain_name, domain_guid,
1249 flags, site_name, &dclist, &num_dcs);
1250 NT_STATUS_NOT_OK_RETURN(status);
1252 return process_dc_dns(mem_ctx, domain_name, flags,
1253 dclist, num_dcs, info);
1256 status = discover_dc_dns(mem_ctx, domain_name, domain_guid, flags,
1257 site_name, &dclist, &num_dcs);
1259 if (NT_STATUS_IS_OK(status) && num_dcs != 0) {
1261 status = process_dc_dns(mem_ctx, domain_name, flags, dclist,
1263 if (NT_STATUS_IS_OK(status)) {
1268 status = discover_dc_netbios(mem_ctx, domain_name, flags, &dclist,
1270 NT_STATUS_NOT_OK_RETURN(status);
1272 return process_dc_netbios(mem_ctx, domain_name, flags, dclist,
1276 /********************************************************************
1279 This will be the only public function here.
1280 ********************************************************************/
1282 NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
1283 const char *domain_name,
1284 struct GUID *domain_guid,
1285 const char *site_name,
1287 struct netr_DsRGetDCNameInfo **info)
1289 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1290 struct netr_DsRGetDCNameInfo *myinfo = NULL;
1292 DEBUG(10,("dsgetdcname: domain_name: %s, "
1293 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
1295 domain_guid ? GUID_string(mem_ctx, domain_guid) : "(null)",
1300 if (!check_allowed_required_flags(flags)) {
1301 DEBUG(0,("invalid flags specified\n"));
1302 return NT_STATUS_INVALID_PARAMETER;
1305 if (flags & DS_FORCE_REDISCOVERY) {
1309 status = dsgetdcname_cached(mem_ctx, domain_name, domain_guid,
1310 flags, site_name, &myinfo);
1311 if (NT_STATUS_IS_OK(status)) {
1316 if (flags & DS_BACKGROUND_ONLY) {
1321 status = dsgetdcname_rediscover(mem_ctx, domain_name,
1322 domain_guid, flags, site_name,
1325 if (NT_STATUS_IS_OK(status)) {