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 /****************************************************************
36 ****************************************************************/
38 void debug_dsdcinfo_flags(int lvl, uint32_t flags)
40 DEBUG(lvl,("debug_dsdcinfo_flags: 0x%08x\n\t", flags));
42 if (flags & DS_FORCE_REDISCOVERY)
43 DEBUGADD(lvl,("DS_FORCE_REDISCOVERY "));
44 if (flags & 0x000000002)
45 DEBUGADD(lvl,("0x00000002 "));
46 if (flags & 0x000000004)
47 DEBUGADD(lvl,("0x00000004 "));
48 if (flags & 0x000000008)
49 DEBUGADD(lvl,("0x00000008 "));
50 if (flags & DS_DIRECTORY_SERVICE_REQUIRED)
51 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_REQUIRED "));
52 if (flags & DS_DIRECTORY_SERVICE_PREFERRED)
53 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_PREFERRED "));
54 if (flags & DS_GC_SERVER_REQUIRED)
55 DEBUGADD(lvl,("DS_GC_SERVER_REQUIRED "));
56 if (flags & DS_PDC_REQUIRED)
57 DEBUGADD(lvl,("DS_PDC_REQUIRED "));
58 if (flags & DS_BACKGROUND_ONLY)
59 DEBUGADD(lvl,("DS_BACKGROUND_ONLY "));
60 if (flags & DS_IP_REQUIRED)
61 DEBUGADD(lvl,("DS_IP_REQUIRED "));
62 if (flags & DS_KDC_REQUIRED)
63 DEBUGADD(lvl,("DS_KDC_REQUIRED "));
64 if (flags & DS_TIMESERV_REQUIRED)
65 DEBUGADD(lvl,("DS_TIMESERV_REQUIRED "));
66 if (flags & DS_WRITABLE_REQUIRED)
67 DEBUGADD(lvl,("DS_WRITABLE_REQUIRED "));
68 if (flags & DS_GOOD_TIMESERV_PREFERRED)
69 DEBUGADD(lvl,("DS_GOOD_TIMESERV_PREFERRED "));
70 if (flags & DS_AVOID_SELF)
71 DEBUGADD(lvl,("DS_AVOID_SELF "));
72 if (flags & DS_ONLY_LDAP_NEEDED)
73 DEBUGADD(lvl,("DS_ONLY_LDAP_NEEDED "));
74 if (flags & DS_IS_FLAT_NAME)
75 DEBUGADD(lvl,("DS_IS_FLAT_NAME "));
76 if (flags & DS_IS_DNS_NAME)
77 DEBUGADD(lvl,("DS_IS_DNS_NAME "));
78 if (flags & 0x00040000)
79 DEBUGADD(lvl,("0x00040000 "));
80 if (flags & 0x00080000)
81 DEBUGADD(lvl,("0x00080000 "));
82 if (flags & 0x00100000)
83 DEBUGADD(lvl,("0x00100000 "));
84 if (flags & 0x00200000)
85 DEBUGADD(lvl,("0x00200000 "));
86 if (flags & 0x00400000)
87 DEBUGADD(lvl,("0x00400000 "));
88 if (flags & 0x00800000)
89 DEBUGADD(lvl,("0x00800000 "));
90 if (flags & 0x01000000)
91 DEBUGADD(lvl,("0x01000000 "));
92 if (flags & 0x02000000)
93 DEBUGADD(lvl,("0x02000000 "));
94 if (flags & 0x04000000)
95 DEBUGADD(lvl,("0x04000000 "));
96 if (flags & 0x08000000)
97 DEBUGADD(lvl,("0x08000000 "));
98 if (flags & 0x10000000)
99 DEBUGADD(lvl,("0x10000000 "));
100 if (flags & 0x20000000)
101 DEBUGADD(lvl,("0x20000000 "));
102 if (flags & DS_RETURN_DNS_NAME)
103 DEBUGADD(lvl,("DS_RETURN_DNS_NAME "));
104 if (flags & DS_RETURN_FLAT_NAME)
105 DEBUGADD(lvl,("DS_RETURN_FLAT_NAME "));
107 DEBUGADD(lvl,("\n"));
110 /****************************************************************
111 ****************************************************************/
113 static char *dsgetdcname_cache_key(TALLOC_CTX *mem_ctx, const char *domain)
115 if (!mem_ctx || !domain) {
119 return talloc_asprintf_strupper_m(mem_ctx, DSGETDCNAME_FMT, domain);
122 /****************************************************************
123 ****************************************************************/
125 static NTSTATUS dsgetdcname_cache_delete(TALLOC_CTX *mem_ctx,
126 const char *domain_name)
130 if (!gencache_init()) {
131 return NT_STATUS_INTERNAL_DB_ERROR;
134 key = dsgetdcname_cache_key(mem_ctx, domain_name);
136 return NT_STATUS_NO_MEMORY;
139 if (!gencache_del(key)) {
140 return NT_STATUS_UNSUCCESSFUL;
146 /****************************************************************
147 ****************************************************************/
149 static NTSTATUS dsgetdcname_cache_store(TALLOC_CTX *mem_ctx,
150 const char *domain_name,
151 struct netr_DsRGetDCNameInfo *info)
157 enum ndr_err_code ndr_err;
159 if (!gencache_init()) {
160 return NT_STATUS_INTERNAL_DB_ERROR;
163 key = dsgetdcname_cache_key(mem_ctx, domain_name);
165 return NT_STATUS_NO_MEMORY;
168 expire_time = time(NULL) + DSGETDCNAME_CACHE_TTL;
170 ndr_err = ndr_push_struct_blob(&blob, mem_ctx, info,
171 (ndr_push_flags_fn_t)ndr_push_netr_DsRGetDCNameInfo);
172 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
173 return ndr_map_error2ntstatus(ndr_err);
176 if (gencache_lock_entry(key) != 0) {
177 data_blob_free(&blob);
178 return NT_STATUS_LOCK_NOT_GRANTED;
181 ret = gencache_set_data_blob(key, &blob, expire_time);
182 data_blob_free(&blob);
184 gencache_unlock_entry(key);
186 return ret ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
189 /****************************************************************
190 ****************************************************************/
192 static NTSTATUS dsgetdcname_cache_refresh(TALLOC_CTX *mem_ctx,
193 const char *domain_name,
194 struct GUID *domain_guid,
196 const char *site_name,
197 struct netr_DsRGetDCNameInfo *info)
199 struct nbt_cldap_netlogon_5 r;
201 /* check if matching entry is older then 15 minutes, if yes, send
202 * CLDAP/MAILSLOT ping again and store the cached data */
206 if (ads_cldap_netlogon(mem_ctx, info->dc_unc,
207 info->domain_name, &r)) {
209 dsgetdcname_cache_delete(mem_ctx, domain_name);
211 return dsgetdcname_cache_store(mem_ctx,
216 return NT_STATUS_INVALID_NETWORK_RESPONSE;
219 /****************************************************************
220 ****************************************************************/
222 #define RETURN_ON_FALSE(x) if (!x) return false;
224 static bool check_cldap_reply_required_flags(uint32_t ret_flags,
227 if (req_flags & DS_PDC_REQUIRED)
228 RETURN_ON_FALSE(ret_flags & NBT_SERVER_PDC);
230 if (req_flags & DS_GC_SERVER_REQUIRED)
231 RETURN_ON_FALSE(ret_flags & NBT_SERVER_GC);
233 if (req_flags & DS_ONLY_LDAP_NEEDED)
234 RETURN_ON_FALSE(ret_flags & NBT_SERVER_LDAP);
236 if ((req_flags & DS_DIRECTORY_SERVICE_REQUIRED) ||
237 (req_flags & DS_DIRECTORY_SERVICE_PREFERRED))
238 RETURN_ON_FALSE(ret_flags & NBT_SERVER_DS);
240 if (req_flags & DS_KDC_REQUIRED)
241 RETURN_ON_FALSE(ret_flags & NBT_SERVER_KDC);
243 if (req_flags & DS_TIMESERV_REQUIRED)
244 RETURN_ON_FALSE(ret_flags & NBT_SERVER_TIMESERV);
246 if (req_flags & DS_WRITABLE_REQUIRED)
247 RETURN_ON_FALSE(ret_flags & NBT_SERVER_WRITABLE);
252 /****************************************************************
253 ****************************************************************/
255 static NTSTATUS dsgetdcname_cache_fetch(TALLOC_CTX *mem_ctx,
256 const char *domain_name,
257 struct GUID *domain_guid,
259 const char *site_name,
260 struct netr_DsRGetDCNameInfo **info_p,
265 enum ndr_err_code ndr_err;
266 struct netr_DsRGetDCNameInfo *info;
268 if (!gencache_init()) {
269 return NT_STATUS_INTERNAL_DB_ERROR;
272 key = dsgetdcname_cache_key(mem_ctx, domain_name);
274 return NT_STATUS_NO_MEMORY;
277 if (!gencache_get_data_blob(key, &blob, expired)) {
278 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
281 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
283 return NT_STATUS_NO_MEMORY;
286 ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, info,
287 (ndr_pull_flags_fn_t)ndr_pull_netr_DsRGetDCNameInfo);
289 data_blob_free(&blob);
290 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
291 dsgetdcname_cache_delete(mem_ctx, domain_name);
292 return ndr_map_error2ntstatus(ndr_err);
295 if (DEBUGLEVEL >= 10) {
296 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo, info);
300 if (!check_cldap_reply_required_flags(info->dc_flags, flags)) {
301 DEBUG(10,("invalid flags\n"));
302 return NT_STATUS_INVALID_PARAMETER;
305 if ((flags & DS_IP_REQUIRED) &&
306 (info->dc_address_type != DS_ADDRESS_TYPE_INET)) {
307 return NT_STATUS_INVALID_PARAMETER_MIX;
315 /****************************************************************
316 ****************************************************************/
318 static NTSTATUS dsgetdcname_cached(TALLOC_CTX *mem_ctx,
319 const char *domain_name,
320 struct GUID *domain_guid,
322 const char *site_name,
323 struct netr_DsRGetDCNameInfo **info)
326 bool expired = false;
328 status = dsgetdcname_cache_fetch(mem_ctx, domain_name, domain_guid,
329 flags, site_name, info, &expired);
330 if (!NT_STATUS_IS_OK(status)) {
331 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
333 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
336 if (flags & DS_BACKGROUND_ONLY) {
341 status = dsgetdcname_cache_refresh(mem_ctx, domain_name,
344 if (!NT_STATUS_IS_OK(status)) {
352 /****************************************************************
353 ****************************************************************/
355 static bool check_allowed_required_flags(uint32_t flags)
357 uint32_t return_type = flags & (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME);
358 uint32_t offered_type = flags & (DS_IS_FLAT_NAME|DS_IS_DNS_NAME);
359 uint32_t query_type = flags & (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY);
361 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
362 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
364 debug_dsdcinfo_flags(10, flags);
366 if (return_type == (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME)) {
370 if (offered_type == (DS_IS_DNS_NAME|DS_IS_FLAT_NAME)) {
374 if (query_type == (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY)) {
379 if ((flags & DS_RETURN_DNS_NAME) && (!(flags & DS_IP_REQUIRED))) {
380 printf("gd: here5 \n");
387 /****************************************************************
388 ****************************************************************/
390 static NTSTATUS discover_dc_netbios(TALLOC_CTX *mem_ctx,
391 const char *domain_name,
393 struct ip_service_name **returned_dclist,
397 enum nbt_name_type name_type = NBT_NAME_LOGON;
398 struct ip_service *iplist;
400 struct ip_service_name *dclist = NULL;
403 *returned_dclist = NULL;
406 if (lp_disable_netbios()) {
407 return NT_STATUS_NOT_SUPPORTED;
410 if (flags & DS_PDC_REQUIRED) {
411 name_type = NBT_NAME_PDC;
414 status = internal_resolve_name(domain_name, name_type, NULL,
416 "lmhosts wins bcast");
417 if (!NT_STATUS_IS_OK(status)) {
418 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
422 dclist = TALLOC_ZERO_ARRAY(mem_ctx, struct ip_service_name, count);
424 return NT_STATUS_NO_MEMORY;
427 for (i=0; i<count; i++) {
429 char addr[INET6_ADDRSTRLEN];
430 struct ip_service_name *r = &dclist[i];
432 print_sockaddr(addr, sizeof(addr),
435 r->ss = iplist[i].ss;
436 r->port = iplist[i].port;
437 r->hostname = talloc_strdup(mem_ctx, addr);
439 return NT_STATUS_NO_MEMORY;
444 *returned_dclist = dclist;
445 *returned_count = count;
450 /****************************************************************
451 ****************************************************************/
453 static NTSTATUS discover_dc_dns(TALLOC_CTX *mem_ctx,
454 const char *domain_name,
455 struct GUID *domain_guid,
457 const char *site_name,
458 struct ip_service_name **returned_dclist,
463 struct dns_rr_srv *dcs = NULL;
466 struct ip_service_name *dclist = NULL;
469 if (flags & DS_PDC_REQUIRED) {
470 status = ads_dns_query_pdc(mem_ctx, domain_name,
472 } else if (flags & DS_GC_SERVER_REQUIRED) {
473 status = ads_dns_query_gcs(mem_ctx, domain_name, site_name,
475 } else if (flags & DS_KDC_REQUIRED) {
476 status = ads_dns_query_kdcs(mem_ctx, domain_name, site_name,
478 } else if (flags & DS_DIRECTORY_SERVICE_REQUIRED) {
479 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
481 } else if (domain_guid) {
482 status = ads_dns_query_dcs_guid(mem_ctx, domain_name,
483 domain_guid, &dcs, &numdcs);
485 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
489 if (!NT_STATUS_IS_OK(status)) {
494 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
497 for (i=0;i<numdcs;i++) {
498 numaddrs += MAX(dcs[i].num_ips,1);
501 dclist = TALLOC_ZERO_ARRAY(mem_ctx,
502 struct ip_service_name,
505 return NT_STATUS_NO_MEMORY;
508 /* now unroll the list of IP addresses */
514 while ((i < numdcs) && (count < numaddrs)) {
516 struct ip_service_name *r = &dclist[count];
518 r->port = dcs[count].port;
519 r->hostname = dcs[count].hostname;
521 if (!(flags & DS_IP_REQUIRED)) {
526 /* If we don't have an IP list for a name, lookup it up */
529 interpret_string_addr(&r->ss, dcs[i].hostname, 0);
533 /* use the IP addresses from the SRV sresponse */
535 if (j >= dcs[i].num_ips) {
541 r->ss = dcs[i].ss_s[j];
545 /* make sure it is a valid IP. I considered checking the
546 * negative connection cache, but this is the wrong place for
547 * it. Maybe only as a hac. After think about it, if all of
548 * the IP addresses retuend from DNS are dead, what hope does a
549 * netbios name lookup have? The standard reason for falling
550 * back to netbios lookups is that our DNS server doesn't know
551 * anything about the DC's -- jerry */
553 if (!is_zero_addr(&r->ss)) {
559 *returned_dclist = dclist;
560 *return_count = count;
566 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
569 /****************************************************************
570 ****************************************************************/
572 static NTSTATUS make_domain_controller_info(TALLOC_CTX *mem_ctx,
574 const char *dc_address,
575 uint32_t dc_address_type,
576 const struct GUID *domain_guid,
577 const char *domain_name,
578 const char *forest_name,
580 const char *dc_site_name,
581 const char *client_site_name,
582 struct netr_DsRGetDCNameInfo **info_out)
584 struct netr_DsRGetDCNameInfo *info;
586 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
587 NT_STATUS_HAVE_NO_MEMORY(info);
590 info->dc_unc = talloc_strdup(mem_ctx, dc_unc);
591 NT_STATUS_HAVE_NO_MEMORY(info->dc_unc);
595 info->dc_address = talloc_strdup(mem_ctx, dc_address);
596 NT_STATUS_HAVE_NO_MEMORY(info->dc_address);
599 info->dc_address_type = dc_address_type;
602 info->domain_guid = *domain_guid;
606 info->domain_name = talloc_strdup(mem_ctx, domain_name);
607 NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
611 info->forest_name = talloc_strdup(mem_ctx, forest_name);
612 NT_STATUS_HAVE_NO_MEMORY(info->forest_name);
615 info->dc_flags = flags;
618 info->dc_site_name = talloc_strdup(mem_ctx, dc_site_name);
619 NT_STATUS_HAVE_NO_MEMORY(info->dc_site_name);
622 if (client_site_name) {
623 info->client_site_name = talloc_strdup(mem_ctx,
625 NT_STATUS_HAVE_NO_MEMORY(info->client_site_name);
633 /****************************************************************
634 ****************************************************************/
636 static uint32_t map_ds_flags_to_nt_version(uint32_t flags)
638 uint32_t nt_version = 0;
640 if (flags & DS_PDC_REQUIRED) {
641 nt_version |= NETLOGON_VERSION_PDC;
644 if (flags & DS_GC_SERVER_REQUIRED) {
645 nt_version |= NETLOGON_VERSION_GC;
648 if (flags & DS_TRY_NEXTCLOSEST_SITE) {
649 nt_version |= NETLOGON_VERSION_WITH_CLOSEST_SITE;
652 if (flags & DS_IP_REQUIRED) {
653 nt_version |= NETLOGON_VERSION_IP;
659 /****************************************************************
660 ****************************************************************/
662 static NTSTATUS process_dc_dns(TALLOC_CTX *mem_ctx,
663 const char *domain_name,
665 struct ip_service_name *dclist,
667 struct netr_DsRGetDCNameInfo **info)
670 bool valid_dc = false;
671 struct nbt_cldap_netlogon_5 r;
672 const char *dc_hostname, *dc_domain_name;
673 const char *dc_address;
674 uint32_t dc_address_type;
677 for (i=0; i<num_dcs; i++) {
681 DEBUG(10,("LDAP ping to %s\n", dclist[i].hostname));
683 if ((ads_cldap_netlogon(mem_ctx, dclist[i].hostname,
685 (check_cldap_reply_required_flags(r.server_type, flags))) {
694 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
697 dc_flags = r.server_type;
699 if (flags & DS_RETURN_FLAT_NAME) {
700 if (!strlen(r.pdc_name) || !strlen(r.domain)) {
701 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
703 dc_hostname = r.pdc_name;
704 dc_domain_name = r.domain;
705 } else if (flags & DS_RETURN_DNS_NAME) {
706 if (!strlen(r.pdc_dns_name) || !strlen(r.dns_domain)) {
707 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
709 dc_hostname = r.pdc_dns_name;
710 dc_domain_name = r.dns_domain;
711 dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
714 dc_hostname = r.pdc_dns_name;
715 dc_domain_name = r.dns_domain;
716 dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
719 if (flags & DS_IP_REQUIRED) {
720 char addr[INET6_ADDRSTRLEN];
721 print_sockaddr(addr, sizeof(addr), &dclist[i].ss);
722 dc_address = talloc_asprintf(mem_ctx, "\\\\%s",
724 dc_address_type = DS_ADDRESS_TYPE_INET;
726 dc_address = talloc_asprintf(mem_ctx, "\\\\%s",
728 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
730 NT_STATUS_HAVE_NO_MEMORY(dc_address);
733 dc_flags |= DS_DNS_FOREST;
736 return make_domain_controller_info(mem_ctx,
750 /****************************************************************
751 ****************************************************************/
753 static struct event_context *ev_context(void)
755 static struct event_context *ctx;
757 if (!ctx && !(ctx = event_context_init(NULL))) {
758 smb_panic("Could not init event context");
763 /****************************************************************
764 ****************************************************************/
766 static struct messaging_context *msg_context(TALLOC_CTX *mem_ctx)
768 static struct messaging_context *ctx;
770 if (!ctx && !(ctx = messaging_init(mem_ctx, server_id_self(),
772 smb_panic("Could not init messaging context");
777 /****************************************************************
778 ****************************************************************/
780 static NTSTATUS process_dc_netbios(TALLOC_CTX *mem_ctx,
781 const char *domain_name,
783 struct ip_service_name *dclist,
785 struct netr_DsRGetDCNameInfo **info)
787 struct sockaddr_storage ss;
788 struct ip_service ip_list;
789 enum nbt_name_type name_type = NBT_NAME_LOGON;
792 const char *dc_hostname, *dc_domain_name;
793 const char *dc_address;
794 uint32_t dc_address_type;
795 uint32_t dc_flags = 0;
796 const char *dc_name = NULL;
797 const char *dc_forest = NULL;
798 const char *dc_server_site = NULL;
799 const char *dc_client_site = NULL;
800 struct GUID *dc_domain_guid = NULL;
802 struct messaging_context *msg_ctx = msg_context(mem_ctx);
803 struct nbt_ntlogon_packet *reply = NULL;
804 uint32_t nt_version = NETLOGON_VERSION_1 |
806 NETLOGON_VERSION_5EX_WITH_IP;
808 if (flags & DS_PDC_REQUIRED) {
809 name_type = NBT_NAME_PDC;
812 nt_version |= map_ds_flags_to_nt_version(flags);
814 DEBUG(10,("process_dc_netbios\n"));
816 for (i=0; i<num_dcs; i++) {
818 ip_list.ss = dclist[i].ss;
821 if (!interpret_string_addr(&ss, dclist[i].hostname, AI_NUMERICHOST)) {
822 return NT_STATUS_UNSUCCESSFUL;
825 if (send_getdc_request(mem_ctx, msg_ctx,
826 &dclist[i].ss, domain_name,
831 for (k=0; k<5; k++) {
832 if (receive_getdc_response(mem_ctx,
837 namecache_store(dc_name, NBT_NAME_SERVER, 1, &ip_list);
838 dc_hostname = dc_name;
839 dc_domain_name = talloc_strdup_upper(mem_ctx, domain_name);
840 NT_STATUS_HAVE_NO_MEMORY(dc_domain_name);
847 if (name_status_find(domain_name,
853 dc_hostname = tmp_dc_name;
854 dc_domain_name = talloc_strdup_upper(mem_ctx, domain_name);
855 namecache_store(tmp_dc_name, NBT_NAME_SERVER, 1, &ip_list);
860 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
864 if (reply && reply->command == NTLOGON_RESPONSE_FROM_PDC2) {
866 dc_flags |= reply->req.reply2.server_type;
867 dc_forest = reply->req.reply2.forest;
868 dc_server_site = reply->req.reply2.server_site;
869 dc_client_site = reply->req.reply2.client_site;
871 dc_domain_guid = &reply->req.reply2.domain_uuid;
873 if (flags & DS_RETURN_DNS_NAME) {
874 dc_domain_name = reply->req.reply2.dns_domain;
875 dc_hostname = reply->req.reply2.pdc_dns_name;
876 dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
877 } else if (flags & DS_RETURN_FLAT_NAME) {
878 dc_domain_name = reply->req.reply2.domain;
879 dc_hostname = reply->req.reply2.pdc_name;
883 if (flags & DS_IP_REQUIRED) {
884 char addr[INET6_ADDRSTRLEN];
885 print_sockaddr(addr, sizeof(addr), &dclist[i].ss);
886 dc_address = talloc_asprintf(mem_ctx, "\\\\%s", addr);
887 dc_address_type = DS_ADDRESS_TYPE_INET;
889 dc_address = talloc_asprintf(mem_ctx, "\\\\%s", dc_hostname);
890 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
893 if (flags & DS_PDC_REQUIRED) {
894 dc_flags |= NBT_SERVER_PDC | NBT_SERVER_WRITABLE;
898 dc_flags |= DS_DNS_FOREST;
901 return make_domain_controller_info(mem_ctx,
914 /****************************************************************
915 ****************************************************************/
917 static NTSTATUS dsgetdcname_rediscover(TALLOC_CTX *mem_ctx,
918 const char *domain_name,
919 struct GUID *domain_guid,
921 const char *site_name,
922 struct netr_DsRGetDCNameInfo **info)
924 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
925 struct ip_service_name *dclist = NULL;
928 DEBUG(10,("dsgetdcname_rediscover\n"));
930 if (flags & DS_IS_FLAT_NAME) {
932 status = discover_dc_netbios(mem_ctx, domain_name, flags,
934 NT_STATUS_NOT_OK_RETURN(status);
936 return process_dc_netbios(mem_ctx, domain_name, flags,
937 dclist, num_dcs, info);
940 if (flags & DS_IS_DNS_NAME) {
942 status = discover_dc_dns(mem_ctx, domain_name, domain_guid,
943 flags, site_name, &dclist, &num_dcs);
944 NT_STATUS_NOT_OK_RETURN(status);
946 return process_dc_dns(mem_ctx, domain_name, flags,
947 dclist, num_dcs, info);
950 status = discover_dc_dns(mem_ctx, domain_name, domain_guid, flags,
951 site_name, &dclist, &num_dcs);
953 if (NT_STATUS_IS_OK(status) && num_dcs != 0) {
955 status = process_dc_dns(mem_ctx, domain_name, flags, dclist,
957 if (NT_STATUS_IS_OK(status)) {
962 status = discover_dc_netbios(mem_ctx, domain_name, flags, &dclist,
964 NT_STATUS_NOT_OK_RETURN(status);
966 return process_dc_netbios(mem_ctx, domain_name, flags, dclist,
970 /********************************************************************
973 This will be the only public function here.
974 ********************************************************************/
976 NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
977 const char *domain_name,
978 struct GUID *domain_guid,
979 const char *site_name,
981 struct netr_DsRGetDCNameInfo **info)
983 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
984 struct netr_DsRGetDCNameInfo *myinfo = NULL;
986 DEBUG(10,("dsgetdcname: domain_name: %s, "
987 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
989 domain_guid ? GUID_string(mem_ctx, domain_guid) : "(null)",
994 if (!check_allowed_required_flags(flags)) {
995 DEBUG(0,("invalid flags specified\n"));
996 return NT_STATUS_INVALID_PARAMETER;
999 if (flags & DS_FORCE_REDISCOVERY) {
1003 status = dsgetdcname_cached(mem_ctx, domain_name, domain_guid,
1004 flags, site_name, &myinfo);
1005 if (NT_STATUS_IS_OK(status)) {
1010 if (flags & DS_BACKGROUND_ONLY) {
1015 status = dsgetdcname_rediscover(mem_ctx, domain_name,
1016 domain_guid, flags, site_name,
1019 if (NT_STATUS_IS_OK(status)) {
1020 dsgetdcname_cache_store(mem_ctx, domain_name, myinfo);
1027 /****************************************************************
1028 ****************************************************************/
1030 bool pull_mailslot_cldap_reply(TALLOC_CTX *mem_ctx,
1031 const DATA_BLOB *blob,
1032 union nbt_cldap_netlogon *r,
1033 uint32_t *nt_version)
1035 enum ndr_err_code ndr_err;
1036 uint32_t nt_version_query = ((*nt_version) & 0x000000ff);
1037 uint16_t command = 0;
1039 ndr_err = ndr_pull_struct_blob(blob, mem_ctx, &command,
1040 (ndr_pull_flags_fn_t)ndr_pull_uint16);
1041 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1051 DEBUG(1,("got unexpected command: %d (0x%08x)\n",
1056 ndr_err = ndr_pull_union_blob_all(blob, mem_ctx, r, nt_version_query,
1057 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon);
1058 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1062 /* when the caller requested just those nt_version bits that the server
1063 * was able to reply to, we are fine and all done. otherwise we need to
1064 * assume downgraded replies which are painfully parsed here - gd */
1066 if (nt_version_query & NETLOGON_VERSION_WITH_CLOSEST_SITE) {
1067 nt_version_query &= ~NETLOGON_VERSION_WITH_CLOSEST_SITE;
1069 ndr_err = ndr_pull_union_blob_all(blob, mem_ctx, r, nt_version_query,
1070 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon);
1071 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1074 if (nt_version_query & NETLOGON_VERSION_5EX_WITH_IP) {
1075 nt_version_query &= ~NETLOGON_VERSION_5EX_WITH_IP;
1077 ndr_err = ndr_pull_union_blob_all(blob, mem_ctx, r, nt_version_query,
1078 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon);
1079 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1082 if (nt_version_query & NETLOGON_VERSION_5EX) {
1083 nt_version_query &= ~NETLOGON_VERSION_5EX;
1085 ndr_err = ndr_pull_union_blob_all(blob, mem_ctx, r, nt_version_query,
1086 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon);
1087 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1090 if (nt_version_query & NETLOGON_VERSION_5) {
1091 nt_version_query &= ~NETLOGON_VERSION_5;
1093 ndr_err = ndr_pull_union_blob_all(blob, mem_ctx, r, nt_version_query,
1094 (ndr_pull_flags_fn_t)ndr_pull_nbt_cldap_netlogon);
1095 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1102 if (DEBUGLEVEL >= 10) {
1103 NDR_PRINT_UNION_DEBUG(nbt_cldap_netlogon, nt_version_query, r);
1106 *nt_version = nt_version_query;