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"
27 #define DSGETDCNAME_FMT "DSGETDCNAME/DOMAIN/%s"
29 #define DSGETDCNAME_CACHE_TTL 60*15
31 struct ip_service_name {
32 struct sockaddr_storage ss;
37 static NTSTATUS make_dc_info_from_cldap_reply(TALLOC_CTX *mem_ctx,
39 struct sockaddr_storage *ss,
40 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r,
41 struct netr_DsRGetDCNameInfo **info);
43 /****************************************************************
44 ****************************************************************/
46 void debug_dsdcinfo_flags(int lvl, uint32_t flags)
48 DEBUG(lvl,("debug_dsdcinfo_flags: 0x%08x\n\t", flags));
50 if (flags & DS_FORCE_REDISCOVERY)
51 DEBUGADD(lvl,("DS_FORCE_REDISCOVERY "));
52 if (flags & 0x000000002)
53 DEBUGADD(lvl,("0x00000002 "));
54 if (flags & 0x000000004)
55 DEBUGADD(lvl,("0x00000004 "));
56 if (flags & 0x000000008)
57 DEBUGADD(lvl,("0x00000008 "));
58 if (flags & DS_DIRECTORY_SERVICE_REQUIRED)
59 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_REQUIRED "));
60 if (flags & DS_DIRECTORY_SERVICE_PREFERRED)
61 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_PREFERRED "));
62 if (flags & DS_GC_SERVER_REQUIRED)
63 DEBUGADD(lvl,("DS_GC_SERVER_REQUIRED "));
64 if (flags & DS_PDC_REQUIRED)
65 DEBUGADD(lvl,("DS_PDC_REQUIRED "));
66 if (flags & DS_BACKGROUND_ONLY)
67 DEBUGADD(lvl,("DS_BACKGROUND_ONLY "));
68 if (flags & DS_IP_REQUIRED)
69 DEBUGADD(lvl,("DS_IP_REQUIRED "));
70 if (flags & DS_KDC_REQUIRED)
71 DEBUGADD(lvl,("DS_KDC_REQUIRED "));
72 if (flags & DS_TIMESERV_REQUIRED)
73 DEBUGADD(lvl,("DS_TIMESERV_REQUIRED "));
74 if (flags & DS_WRITABLE_REQUIRED)
75 DEBUGADD(lvl,("DS_WRITABLE_REQUIRED "));
76 if (flags & DS_GOOD_TIMESERV_PREFERRED)
77 DEBUGADD(lvl,("DS_GOOD_TIMESERV_PREFERRED "));
78 if (flags & DS_AVOID_SELF)
79 DEBUGADD(lvl,("DS_AVOID_SELF "));
80 if (flags & DS_ONLY_LDAP_NEEDED)
81 DEBUGADD(lvl,("DS_ONLY_LDAP_NEEDED "));
82 if (flags & DS_IS_FLAT_NAME)
83 DEBUGADD(lvl,("DS_IS_FLAT_NAME "));
84 if (flags & DS_IS_DNS_NAME)
85 DEBUGADD(lvl,("DS_IS_DNS_NAME "));
86 if (flags & 0x00040000)
87 DEBUGADD(lvl,("0x00040000 "));
88 if (flags & 0x00080000)
89 DEBUGADD(lvl,("0x00080000 "));
90 if (flags & 0x00100000)
91 DEBUGADD(lvl,("0x00100000 "));
92 if (flags & 0x00200000)
93 DEBUGADD(lvl,("0x00200000 "));
94 if (flags & 0x00400000)
95 DEBUGADD(lvl,("0x00400000 "));
96 if (flags & 0x00800000)
97 DEBUGADD(lvl,("0x00800000 "));
98 if (flags & 0x01000000)
99 DEBUGADD(lvl,("0x01000000 "));
100 if (flags & 0x02000000)
101 DEBUGADD(lvl,("0x02000000 "));
102 if (flags & 0x04000000)
103 DEBUGADD(lvl,("0x04000000 "));
104 if (flags & 0x08000000)
105 DEBUGADD(lvl,("0x08000000 "));
106 if (flags & 0x10000000)
107 DEBUGADD(lvl,("0x10000000 "));
108 if (flags & 0x20000000)
109 DEBUGADD(lvl,("0x20000000 "));
110 if (flags & DS_RETURN_DNS_NAME)
111 DEBUGADD(lvl,("DS_RETURN_DNS_NAME "));
112 if (flags & DS_RETURN_FLAT_NAME)
113 DEBUGADD(lvl,("DS_RETURN_FLAT_NAME "));
115 DEBUGADD(lvl,("\n"));
118 /****************************************************************
119 ****************************************************************/
121 static char *dsgetdcname_cache_key(TALLOC_CTX *mem_ctx, const char *domain)
127 return talloc_asprintf_strupper_m(mem_ctx, DSGETDCNAME_FMT, domain);
130 /****************************************************************
131 ****************************************************************/
133 static NTSTATUS dsgetdcname_cache_delete(TALLOC_CTX *mem_ctx,
134 const char *domain_name)
138 key = dsgetdcname_cache_key(mem_ctx, domain_name);
140 return NT_STATUS_NO_MEMORY;
143 if (!gencache_del(key)) {
144 return NT_STATUS_UNSUCCESSFUL;
150 /****************************************************************
151 ****************************************************************/
153 static NTSTATUS dsgetdcname_cache_store(TALLOC_CTX *mem_ctx,
154 const char *domain_name,
155 const DATA_BLOB *blob)
161 key = dsgetdcname_cache_key(mem_ctx, domain_name);
163 return NT_STATUS_NO_MEMORY;
166 expire_time = time(NULL) + DSGETDCNAME_CACHE_TTL;
168 ret = gencache_set_data_blob(key, blob, expire_time);
170 return ret ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
173 /****************************************************************
174 ****************************************************************/
176 static NTSTATUS store_cldap_reply(TALLOC_CTX *mem_ctx,
178 struct sockaddr_storage *ss,
180 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r)
183 enum ndr_err_code ndr_err;
185 char addr[INET6_ADDRSTRLEN];
187 print_sockaddr(addr, sizeof(addr), ss);
190 r->sockaddr_size = 0x10; /* the w32 winsock addr size */
191 r->sockaddr.sockaddr_family = 2; /* AF_INET */
192 r->sockaddr.pdc_ip = talloc_strdup(mem_ctx, addr);
194 ndr_err = ndr_push_struct_blob(&blob, mem_ctx, r,
195 (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX);
196 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
197 return ndr_map_error2ntstatus(ndr_err);
200 if (r->domain_name) {
201 status = dsgetdcname_cache_store(mem_ctx, r->domain_name, &blob);
202 if (!NT_STATUS_IS_OK(status)) {
205 if (r->client_site) {
206 sitename_store(r->domain_name, r->client_site);
210 status = dsgetdcname_cache_store(mem_ctx, r->dns_domain, &blob);
211 if (!NT_STATUS_IS_OK(status)) {
214 if (r->client_site) {
215 sitename_store(r->dns_domain, r->client_site);
219 status = NT_STATUS_OK;
222 data_blob_free(&blob);
227 /****************************************************************
228 ****************************************************************/
230 static uint32_t get_cldap_reply_server_flags(struct netlogon_samlogon_response *r,
233 switch (nt_version & 0x0000001f) {
243 return r->data.nt5.server_type;
248 return r->data.nt5_ex.server_type;
257 return r->data.nt5_ex.server_type;
267 return r->data.nt5_ex.server_type;
271 return r->data.nt5_ex.server_type;
277 /****************************************************************
278 ****************************************************************/
280 #define RETURN_ON_FALSE(x) if (!(x)) return false;
282 static bool check_cldap_reply_required_flags(uint32_t ret_flags,
285 if (ret_flags == 0) {
289 if (req_flags & DS_PDC_REQUIRED)
290 RETURN_ON_FALSE(ret_flags & NBT_SERVER_PDC);
292 if (req_flags & DS_GC_SERVER_REQUIRED)
293 RETURN_ON_FALSE(ret_flags & NBT_SERVER_GC);
295 if (req_flags & DS_ONLY_LDAP_NEEDED)
296 RETURN_ON_FALSE(ret_flags & NBT_SERVER_LDAP);
298 if ((req_flags & DS_DIRECTORY_SERVICE_REQUIRED) ||
299 (req_flags & DS_DIRECTORY_SERVICE_PREFERRED))
300 RETURN_ON_FALSE(ret_flags & NBT_SERVER_DS);
302 if (req_flags & DS_KDC_REQUIRED)
303 RETURN_ON_FALSE(ret_flags & NBT_SERVER_KDC);
305 if (req_flags & DS_TIMESERV_REQUIRED)
306 RETURN_ON_FALSE(ret_flags & NBT_SERVER_TIMESERV);
308 if (req_flags & DS_WRITABLE_REQUIRED)
309 RETURN_ON_FALSE(ret_flags & NBT_SERVER_WRITABLE);
314 /****************************************************************
315 ****************************************************************/
317 static NTSTATUS dsgetdcname_cache_fetch(TALLOC_CTX *mem_ctx,
318 const char *domain_name,
319 const struct GUID *domain_guid,
321 const char *site_name,
322 struct netr_DsRGetDCNameInfo **info_p)
326 enum ndr_err_code ndr_err;
327 struct netr_DsRGetDCNameInfo *info;
328 struct NETLOGON_SAM_LOGON_RESPONSE_EX r;
331 key = dsgetdcname_cache_key(mem_ctx, domain_name);
333 return NT_STATUS_NO_MEMORY;
336 if (!gencache_get_data_blob(key, &blob, NULL, NULL)) {
337 return NT_STATUS_NOT_FOUND;
340 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
342 return NT_STATUS_NO_MEMORY;
345 ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, &r,
346 (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX);
348 data_blob_free(&blob);
349 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
350 dsgetdcname_cache_delete(mem_ctx, domain_name);
351 return ndr_map_error2ntstatus(ndr_err);
354 status = make_dc_info_from_cldap_reply(mem_ctx, flags, NULL,
356 if (!NT_STATUS_IS_OK(status)) {
360 if (DEBUGLEVEL >= 10) {
361 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo, info);
365 if (!check_cldap_reply_required_flags(info->dc_flags, flags)) {
366 DEBUG(10,("invalid flags\n"));
367 return NT_STATUS_INVALID_PARAMETER;
370 if ((flags & DS_IP_REQUIRED) &&
371 (info->dc_address_type != DS_ADDRESS_TYPE_INET)) {
372 return NT_STATUS_INVALID_PARAMETER_MIX;
380 /****************************************************************
381 ****************************************************************/
383 static NTSTATUS dsgetdcname_cached(TALLOC_CTX *mem_ctx,
384 struct messaging_context *msg_ctx,
385 const char *domain_name,
386 const struct GUID *domain_guid,
388 const char *site_name,
389 struct netr_DsRGetDCNameInfo **info)
393 status = dsgetdcname_cache_fetch(mem_ctx, domain_name, domain_guid,
394 flags, site_name, info);
395 if (!NT_STATUS_IS_OK(status)
396 && !NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
397 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
399 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
402 if (flags & DS_BACKGROUND_ONLY) {
406 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
407 struct netr_DsRGetDCNameInfo *dc_info;
409 status = dsgetdcname(mem_ctx, msg_ctx, domain_name,
410 domain_guid, site_name,
411 flags | DS_FORCE_REDISCOVERY,
414 if (!NT_STATUS_IS_OK(status)) {
424 /****************************************************************
425 ****************************************************************/
427 static bool check_allowed_required_flags(uint32_t flags,
428 const char *site_name)
430 uint32_t return_type = flags & (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME);
431 uint32_t offered_type = flags & (DS_IS_FLAT_NAME|DS_IS_DNS_NAME);
432 uint32_t query_type = flags & (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY);
434 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
435 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
437 debug_dsdcinfo_flags(10, flags);
439 if ((flags & DS_TRY_NEXTCLOSEST_SITE) && site_name) {
443 if (return_type == (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME)) {
447 if (offered_type == (DS_IS_DNS_NAME|DS_IS_FLAT_NAME)) {
451 if (query_type == (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY)) {
456 if ((flags & DS_RETURN_DNS_NAME) && (!(flags & DS_IP_REQUIRED))) {
457 printf("gd: here5 \n");
464 /****************************************************************
465 ****************************************************************/
467 static NTSTATUS discover_dc_netbios(TALLOC_CTX *mem_ctx,
468 const char *domain_name,
470 struct ip_service_name **returned_dclist,
474 enum nbt_name_type name_type = NBT_NAME_LOGON;
475 struct ip_service *iplist;
477 struct ip_service_name *dclist = NULL;
480 *returned_dclist = NULL;
483 if (lp_disable_netbios()) {
484 return NT_STATUS_NOT_SUPPORTED;
487 if (flags & DS_PDC_REQUIRED) {
488 name_type = NBT_NAME_PDC;
491 status = internal_resolve_name(domain_name, name_type, NULL,
493 "lmhosts wins bcast");
494 if (!NT_STATUS_IS_OK(status)) {
495 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
499 dclist = TALLOC_ZERO_ARRAY(mem_ctx, struct ip_service_name, count);
502 return NT_STATUS_NO_MEMORY;
505 for (i=0; i<count; i++) {
507 char addr[INET6_ADDRSTRLEN];
508 struct ip_service_name *r = &dclist[i];
510 print_sockaddr(addr, sizeof(addr),
513 r->ss = iplist[i].ss;
514 r->port = iplist[i].port;
515 r->hostname = talloc_strdup(mem_ctx, addr);
518 return NT_STATUS_NO_MEMORY;
523 *returned_dclist = dclist;
524 *returned_count = count;
530 /****************************************************************
531 ****************************************************************/
533 static NTSTATUS discover_dc_dns(TALLOC_CTX *mem_ctx,
534 const char *domain_name,
535 const struct GUID *domain_guid,
537 const char *site_name,
538 struct ip_service_name **returned_dclist,
543 struct dns_rr_srv *dcs = NULL;
546 struct ip_service_name *dclist = NULL;
549 if (flags & DS_PDC_REQUIRED) {
550 status = ads_dns_query_pdc(mem_ctx, domain_name,
552 } else if (flags & DS_GC_SERVER_REQUIRED) {
553 status = ads_dns_query_gcs(mem_ctx, domain_name, site_name,
555 } else if (flags & DS_KDC_REQUIRED) {
556 status = ads_dns_query_kdcs(mem_ctx, domain_name, site_name,
558 } else if (flags & DS_DIRECTORY_SERVICE_REQUIRED) {
559 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
561 } else if (domain_guid) {
562 status = ads_dns_query_dcs_guid(mem_ctx, domain_name,
563 domain_guid, &dcs, &numdcs);
565 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
569 if (!NT_STATUS_IS_OK(status)) {
574 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
577 for (i=0;i<numdcs;i++) {
578 numaddrs += MAX(dcs[i].num_ips,1);
581 dclist = TALLOC_ZERO_ARRAY(mem_ctx,
582 struct ip_service_name,
585 return NT_STATUS_NO_MEMORY;
588 /* now unroll the list of IP addresses */
594 while ((i < numdcs) && (count < numaddrs)) {
596 struct ip_service_name *r = &dclist[count];
598 r->port = dcs[i].port;
599 r->hostname = dcs[i].hostname;
601 /* If we don't have an IP list for a name, lookup it up */
604 interpret_string_addr_prefer_ipv4(&r->ss,
609 /* use the IP addresses from the SRV sresponse */
611 if (j >= dcs[i].num_ips) {
617 r->ss = dcs[i].ss_s[j];
621 /* make sure it is a valid IP. I considered checking the
622 * negative connection cache, but this is the wrong place for
623 * it. Maybe only as a hac. After think about it, if all of
624 * the IP addresses retuend from DNS are dead, what hope does a
625 * netbios name lookup have? The standard reason for falling
626 * back to netbios lookups is that our DNS server doesn't know
627 * anything about the DC's -- jerry */
629 if (!is_zero_addr((struct sockaddr *)(void *)&r->ss)) {
635 *returned_dclist = dclist;
636 *return_count = count;
642 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
645 /****************************************************************
646 ****************************************************************/
648 static NTSTATUS make_domain_controller_info(TALLOC_CTX *mem_ctx,
650 const char *dc_address,
651 uint32_t dc_address_type,
652 const struct GUID *domain_guid,
653 const char *domain_name,
654 const char *forest_name,
656 const char *dc_site_name,
657 const char *client_site_name,
658 struct netr_DsRGetDCNameInfo **info_out)
660 struct netr_DsRGetDCNameInfo *info;
662 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
663 NT_STATUS_HAVE_NO_MEMORY(info);
666 info->dc_unc = talloc_strdup(mem_ctx, dc_unc);
667 NT_STATUS_HAVE_NO_MEMORY(info->dc_unc);
671 if (!(dc_address[0] == '\\' && dc_address[1] == '\\')) {
672 info->dc_address = talloc_asprintf(mem_ctx, "\\\\%s",
675 info->dc_address = talloc_strdup(mem_ctx, dc_address);
677 NT_STATUS_HAVE_NO_MEMORY(info->dc_address);
680 info->dc_address_type = dc_address_type;
683 info->domain_guid = *domain_guid;
687 info->domain_name = talloc_strdup(mem_ctx, domain_name);
688 NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
691 if (forest_name && *forest_name) {
692 info->forest_name = talloc_strdup(mem_ctx, forest_name);
693 NT_STATUS_HAVE_NO_MEMORY(info->forest_name);
694 flags |= DS_DNS_FOREST_ROOT;
697 info->dc_flags = flags;
700 info->dc_site_name = talloc_strdup(mem_ctx, dc_site_name);
701 NT_STATUS_HAVE_NO_MEMORY(info->dc_site_name);
704 if (client_site_name) {
705 info->client_site_name = talloc_strdup(mem_ctx,
707 NT_STATUS_HAVE_NO_MEMORY(info->client_site_name);
715 /****************************************************************
716 ****************************************************************/
718 static void map_dc_and_domain_names(uint32_t flags,
720 const char *domain_name,
721 const char *dns_dc_name,
722 const char *dns_domain_name,
724 const char **hostname_p,
725 const char **domain_p)
727 switch (flags & 0xf0000000) {
728 case DS_RETURN_FLAT_NAME:
729 if (dc_name && domain_name &&
730 *dc_name && *domain_name) {
731 *hostname_p = dc_name;
732 *domain_p = domain_name;
735 case DS_RETURN_DNS_NAME:
737 if (dns_dc_name && dns_domain_name &&
738 *dns_dc_name && *dns_domain_name) {
739 *hostname_p = dns_dc_name;
740 *domain_p = dns_domain_name;
741 *dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
744 if (dc_name && domain_name &&
745 *dc_name && *domain_name) {
746 *hostname_p = dc_name;
747 *domain_p = domain_name;
753 /****************************************************************
754 ****************************************************************/
756 static NTSTATUS make_dc_info_from_cldap_reply(TALLOC_CTX *mem_ctx,
758 struct sockaddr_storage *ss,
759 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r,
760 struct netr_DsRGetDCNameInfo **info)
762 const char *dc_hostname = NULL;
763 const char *dc_domain_name = NULL;
764 const char *dc_address = NULL;
765 const char *dc_forest = NULL;
766 uint32_t dc_address_type = 0;
767 uint32_t dc_flags = 0;
768 struct GUID *dc_domain_guid = NULL;
769 const char *dc_server_site = NULL;
770 const char *dc_client_site = NULL;
772 char addr[INET6_ADDRSTRLEN];
775 print_sockaddr(addr, sizeof(addr), ss);
777 dc_address_type = DS_ADDRESS_TYPE_INET;
780 if (!ss && r->sockaddr.pdc_ip) {
781 dc_address = r->sockaddr.pdc_ip;
782 dc_address_type = DS_ADDRESS_TYPE_INET;
784 dc_address = r->pdc_name;
785 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
788 map_dc_and_domain_names(flags,
797 dc_flags |= r->server_type;
798 dc_forest = r->forest;
799 dc_domain_guid = &r->domain_uuid;
800 dc_server_site = r->server_site;
801 dc_client_site = r->client_site;
803 return make_domain_controller_info(mem_ctx,
816 /****************************************************************
817 ****************************************************************/
819 static uint32_t map_ds_flags_to_nt_version(uint32_t flags)
821 uint32_t nt_version = 0;
823 if (flags & DS_PDC_REQUIRED) {
824 nt_version |= NETLOGON_NT_VERSION_PDC;
827 if (flags & DS_GC_SERVER_REQUIRED) {
828 nt_version |= NETLOGON_NT_VERSION_GC;
831 if (flags & DS_TRY_NEXTCLOSEST_SITE) {
832 nt_version |= NETLOGON_NT_VERSION_WITH_CLOSEST_SITE;
835 if (flags & DS_IP_REQUIRED) {
836 nt_version |= NETLOGON_NT_VERSION_IP;
842 /****************************************************************
843 ****************************************************************/
845 static NTSTATUS process_dc_dns(TALLOC_CTX *mem_ctx,
846 const char *domain_name,
848 struct ip_service_name *dclist,
850 struct netr_DsRGetDCNameInfo **info)
853 bool valid_dc = false;
854 struct netlogon_samlogon_response *r = NULL;
855 uint32_t nt_version = NETLOGON_NT_VERSION_5 |
856 NETLOGON_NT_VERSION_5EX;
857 uint32_t ret_flags = 0;
860 nt_version |= map_ds_flags_to_nt_version(flags);
862 for (i=0; i<num_dcs; i++) {
864 DEBUG(10,("LDAP ping to %s\n", dclist[i].hostname));
866 if (ads_cldap_netlogon(mem_ctx, dclist[i].hostname,
871 nt_version = r->ntver;
872 ret_flags = get_cldap_reply_server_flags(r, nt_version);
874 if (check_cldap_reply_required_flags(ret_flags, flags)) {
884 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
887 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
888 &r->data.nt5_ex, info);
889 if (NT_STATUS_IS_OK(status)) {
890 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
891 nt_version, &r->data.nt5_ex);
897 /****************************************************************
898 ****************************************************************/
900 static struct event_context *ev_context(void)
902 static struct event_context *ctx;
904 if (!ctx && !(ctx = event_context_init(NULL))) {
905 smb_panic("Could not init event context");
910 /****************************************************************
911 ****************************************************************/
913 static struct messaging_context *msg_context(TALLOC_CTX *mem_ctx)
915 static struct messaging_context *ctx;
917 if (!ctx && !(ctx = messaging_init(mem_ctx, procid_self(),
919 smb_panic("Could not init messaging context");
924 /****************************************************************
925 ****************************************************************/
927 static NTSTATUS process_dc_netbios(TALLOC_CTX *mem_ctx,
928 struct messaging_context *msg_ctx,
929 const char *domain_name,
931 struct ip_service_name *dclist,
933 struct netr_DsRGetDCNameInfo **info)
935 struct sockaddr_storage ss;
936 struct ip_service ip_list;
937 enum nbt_name_type name_type = NBT_NAME_LOGON;
940 const char *dc_name = NULL;
942 struct netlogon_samlogon_response *r = NULL;
943 bool store_cache = false;
944 uint32_t nt_version = NETLOGON_NT_VERSION_1 |
945 NETLOGON_NT_VERSION_5 |
946 NETLOGON_NT_VERSION_5EX_WITH_IP;
949 msg_ctx = msg_context(mem_ctx);
952 if (flags & DS_PDC_REQUIRED) {
953 name_type = NBT_NAME_PDC;
956 nt_version |= map_ds_flags_to_nt_version(flags);
958 DEBUG(10,("process_dc_netbios\n"));
960 for (i=0; i<num_dcs; i++) {
962 ip_list.ss = dclist[i].ss;
965 if (!interpret_string_addr_prefer_ipv4(&ss, dclist[i].hostname, AI_NUMERICHOST)) {
966 return NT_STATUS_UNSUCCESSFUL;
969 if (send_getdc_request(mem_ctx, msg_ctx,
970 &dclist[i].ss, domain_name,
975 for (k=0; k<5; k++) {
976 if (receive_getdc_response(mem_ctx,
983 namecache_store(dc_name, NBT_NAME_SERVER, 1, &ip_list);
990 if (name_status_find(domain_name,
996 struct NETLOGON_SAM_LOGON_RESPONSE_NT40 logon1;
998 r = TALLOC_ZERO_P(mem_ctx, struct netlogon_samlogon_response);
999 NT_STATUS_HAVE_NO_MEMORY(r);
1001 ZERO_STRUCT(logon1);
1003 nt_version = NETLOGON_NT_VERSION_1;
1005 logon1.nt_version = nt_version;
1006 logon1.pdc_name = tmp_dc_name;
1007 logon1.domain_name = talloc_strdup_upper(mem_ctx, domain_name);
1008 NT_STATUS_HAVE_NO_MEMORY(logon1.domain_name);
1010 r->data.nt4 = logon1;
1011 r->ntver = nt_version;
1013 map_netlogon_samlogon_response(r);
1015 namecache_store(tmp_dc_name, NBT_NAME_SERVER, 1, &ip_list);
1021 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1025 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1026 &r->data.nt5_ex, info);
1027 if (NT_STATUS_IS_OK(status) && store_cache) {
1028 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1029 nt_version, &r->data.nt5_ex);
1035 /****************************************************************
1036 ****************************************************************/
1038 static NTSTATUS dsgetdcname_rediscover(TALLOC_CTX *mem_ctx,
1039 struct messaging_context *msg_ctx,
1040 const char *domain_name,
1041 const struct GUID *domain_guid,
1043 const char *site_name,
1044 struct netr_DsRGetDCNameInfo **info)
1046 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1047 struct ip_service_name *dclist = NULL;
1050 DEBUG(10,("dsgetdcname_rediscover\n"));
1052 if (flags & DS_IS_FLAT_NAME) {
1054 status = discover_dc_netbios(mem_ctx, domain_name, flags,
1056 NT_STATUS_NOT_OK_RETURN(status);
1058 return process_dc_netbios(mem_ctx, msg_ctx, domain_name, flags,
1059 dclist, num_dcs, info);
1062 if (flags & DS_IS_DNS_NAME) {
1064 status = discover_dc_dns(mem_ctx, domain_name, domain_guid,
1065 flags, site_name, &dclist, &num_dcs);
1066 NT_STATUS_NOT_OK_RETURN(status);
1068 return process_dc_dns(mem_ctx, domain_name, flags,
1069 dclist, num_dcs, info);
1072 status = discover_dc_dns(mem_ctx, domain_name, domain_guid, flags,
1073 site_name, &dclist, &num_dcs);
1075 if (NT_STATUS_IS_OK(status) && num_dcs != 0) {
1077 status = process_dc_dns(mem_ctx, domain_name, flags, dclist,
1079 if (NT_STATUS_IS_OK(status)) {
1084 status = discover_dc_netbios(mem_ctx, domain_name, flags, &dclist,
1086 NT_STATUS_NOT_OK_RETURN(status);
1088 return process_dc_netbios(mem_ctx, msg_ctx, domain_name, flags, dclist,
1092 static bool is_closest_site(struct netr_DsRGetDCNameInfo *info)
1094 if (info->dc_flags & DS_SERVER_CLOSEST) {
1098 if (!info->client_site_name) {
1102 if (!info->dc_site_name) {
1106 if (strcmp(info->client_site_name, info->dc_site_name) == 0) {
1113 /********************************************************************
1116 This will be the only public function here.
1117 ********************************************************************/
1119 NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
1120 struct messaging_context *msg_ctx,
1121 const char *domain_name,
1122 const struct GUID *domain_guid,
1123 const char *site_name,
1125 struct netr_DsRGetDCNameInfo **info)
1127 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1128 struct netr_DsRGetDCNameInfo *myinfo = NULL;
1129 char *query_site = NULL;
1131 struct netr_DsRGetDCNameInfo *first_info = NULL;
1133 DEBUG(10,("dsgetdcname: domain_name: %s, "
1134 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
1136 domain_guid ? GUID_string(mem_ctx, domain_guid) : "(null)",
1141 if (!check_allowed_required_flags(flags, site_name)) {
1142 DEBUG(0,("invalid flags specified\n"));
1143 return NT_STATUS_INVALID_PARAMETER;
1146 if ((site_name == NULL) || (site_name[0] == '\0')) {
1147 query_site = sitename_fetch(domain_name);
1149 query_site = SMB_STRDUP(site_name);
1152 if (flags & DS_FORCE_REDISCOVERY) {
1156 status = dsgetdcname_cached(mem_ctx, msg_ctx, domain_name, domain_guid,
1157 flags, query_site, &myinfo);
1158 if (NT_STATUS_IS_OK(status)) {
1162 if (flags & DS_BACKGROUND_ONLY) {
1167 status = dsgetdcname_rediscover(mem_ctx, msg_ctx, domain_name,
1168 domain_guid, flags, query_site,
1172 SAFE_FREE(query_site);
1174 if (!NT_STATUS_IS_OK(status)) {
1177 return NT_STATUS_OK;
1183 TALLOC_FREE(first_info);
1184 } else if (!is_closest_site(myinfo)) {
1186 first_info = myinfo;
1187 /* TODO: may use the next_closest_site here */
1188 query_site = SMB_STRDUP(myinfo->client_site_name);
1193 return NT_STATUS_OK;