2 Unix SMB/CIFS implementation.
6 Copyright (C) Gerald Carter 2006
7 Copyright (C) Guenther Deschner 2007-2008
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "libads/sitename_cache.h"
25 #include "../librpc/gen_ndr/ndr_netlogon.h"
26 #include "libads/cldap.h"
27 #include "libsmb/clidgram.h"
29 #define DSGETDCNAME_FMT "DSGETDCNAME/DOMAIN/%s"
31 #define DSGETDCNAME_CACHE_TTL 60*15
33 struct ip_service_name {
34 struct sockaddr_storage ss;
39 static NTSTATUS make_dc_info_from_cldap_reply(TALLOC_CTX *mem_ctx,
41 struct sockaddr_storage *ss,
42 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r,
43 struct netr_DsRGetDCNameInfo **info);
45 /****************************************************************
46 ****************************************************************/
48 void debug_dsdcinfo_flags(int lvl, uint32_t flags)
50 DEBUG(lvl,("debug_dsdcinfo_flags: 0x%08x\n\t", flags));
52 if (flags & DS_FORCE_REDISCOVERY)
53 DEBUGADD(lvl,("DS_FORCE_REDISCOVERY "));
54 if (flags & 0x000000002)
55 DEBUGADD(lvl,("0x00000002 "));
56 if (flags & 0x000000004)
57 DEBUGADD(lvl,("0x00000004 "));
58 if (flags & 0x000000008)
59 DEBUGADD(lvl,("0x00000008 "));
60 if (flags & DS_DIRECTORY_SERVICE_REQUIRED)
61 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_REQUIRED "));
62 if (flags & DS_DIRECTORY_SERVICE_PREFERRED)
63 DEBUGADD(lvl,("DS_DIRECTORY_SERVICE_PREFERRED "));
64 if (flags & DS_GC_SERVER_REQUIRED)
65 DEBUGADD(lvl,("DS_GC_SERVER_REQUIRED "));
66 if (flags & DS_PDC_REQUIRED)
67 DEBUGADD(lvl,("DS_PDC_REQUIRED "));
68 if (flags & DS_BACKGROUND_ONLY)
69 DEBUGADD(lvl,("DS_BACKGROUND_ONLY "));
70 if (flags & DS_IP_REQUIRED)
71 DEBUGADD(lvl,("DS_IP_REQUIRED "));
72 if (flags & DS_KDC_REQUIRED)
73 DEBUGADD(lvl,("DS_KDC_REQUIRED "));
74 if (flags & DS_TIMESERV_REQUIRED)
75 DEBUGADD(lvl,("DS_TIMESERV_REQUIRED "));
76 if (flags & DS_WRITABLE_REQUIRED)
77 DEBUGADD(lvl,("DS_WRITABLE_REQUIRED "));
78 if (flags & DS_GOOD_TIMESERV_PREFERRED)
79 DEBUGADD(lvl,("DS_GOOD_TIMESERV_PREFERRED "));
80 if (flags & DS_AVOID_SELF)
81 DEBUGADD(lvl,("DS_AVOID_SELF "));
82 if (flags & DS_ONLY_LDAP_NEEDED)
83 DEBUGADD(lvl,("DS_ONLY_LDAP_NEEDED "));
84 if (flags & DS_IS_FLAT_NAME)
85 DEBUGADD(lvl,("DS_IS_FLAT_NAME "));
86 if (flags & DS_IS_DNS_NAME)
87 DEBUGADD(lvl,("DS_IS_DNS_NAME "));
88 if (flags & 0x00040000)
89 DEBUGADD(lvl,("0x00040000 "));
90 if (flags & 0x00080000)
91 DEBUGADD(lvl,("0x00080000 "));
92 if (flags & 0x00100000)
93 DEBUGADD(lvl,("0x00100000 "));
94 if (flags & 0x00200000)
95 DEBUGADD(lvl,("0x00200000 "));
96 if (flags & 0x00400000)
97 DEBUGADD(lvl,("0x00400000 "));
98 if (flags & 0x00800000)
99 DEBUGADD(lvl,("0x00800000 "));
100 if (flags & 0x01000000)
101 DEBUGADD(lvl,("0x01000000 "));
102 if (flags & 0x02000000)
103 DEBUGADD(lvl,("0x02000000 "));
104 if (flags & 0x04000000)
105 DEBUGADD(lvl,("0x04000000 "));
106 if (flags & 0x08000000)
107 DEBUGADD(lvl,("0x08000000 "));
108 if (flags & 0x10000000)
109 DEBUGADD(lvl,("0x10000000 "));
110 if (flags & 0x20000000)
111 DEBUGADD(lvl,("0x20000000 "));
112 if (flags & DS_RETURN_DNS_NAME)
113 DEBUGADD(lvl,("DS_RETURN_DNS_NAME "));
114 if (flags & DS_RETURN_FLAT_NAME)
115 DEBUGADD(lvl,("DS_RETURN_FLAT_NAME "));
117 DEBUGADD(lvl,("\n"));
120 /****************************************************************
121 ****************************************************************/
123 static char *dsgetdcname_cache_key(TALLOC_CTX *mem_ctx, const char *domain)
129 return talloc_asprintf_strupper_m(mem_ctx, DSGETDCNAME_FMT, domain);
132 /****************************************************************
133 ****************************************************************/
135 static NTSTATUS dsgetdcname_cache_delete(TALLOC_CTX *mem_ctx,
136 const char *domain_name)
140 key = dsgetdcname_cache_key(mem_ctx, domain_name);
142 return NT_STATUS_NO_MEMORY;
145 if (!gencache_del(key)) {
146 return NT_STATUS_UNSUCCESSFUL;
152 /****************************************************************
153 ****************************************************************/
155 static NTSTATUS dsgetdcname_cache_store(TALLOC_CTX *mem_ctx,
156 const char *domain_name,
157 const DATA_BLOB *blob)
163 key = dsgetdcname_cache_key(mem_ctx, domain_name);
165 return NT_STATUS_NO_MEMORY;
168 expire_time = time(NULL) + DSGETDCNAME_CACHE_TTL;
170 ret = gencache_set_data_blob(key, blob, expire_time);
172 return ret ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
175 /****************************************************************
176 ****************************************************************/
178 static NTSTATUS store_cldap_reply(TALLOC_CTX *mem_ctx,
180 struct sockaddr_storage *ss,
182 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r)
185 enum ndr_err_code ndr_err;
187 char addr[INET6_ADDRSTRLEN];
189 print_sockaddr(addr, sizeof(addr), ss);
192 r->sockaddr_size = 0x10; /* the w32 winsock addr size */
193 r->sockaddr.sockaddr_family = 2; /* AF_INET */
194 r->sockaddr.pdc_ip = talloc_strdup(mem_ctx, addr);
196 ndr_err = ndr_push_struct_blob(&blob, mem_ctx, r,
197 (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX);
198 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
199 return ndr_map_error2ntstatus(ndr_err);
202 if (r->domain_name) {
203 status = dsgetdcname_cache_store(mem_ctx, r->domain_name, &blob);
204 if (!NT_STATUS_IS_OK(status)) {
207 if (r->client_site) {
208 sitename_store(r->domain_name, r->client_site);
212 status = dsgetdcname_cache_store(mem_ctx, r->dns_domain, &blob);
213 if (!NT_STATUS_IS_OK(status)) {
216 if (r->client_site) {
217 sitename_store(r->dns_domain, r->client_site);
221 status = NT_STATUS_OK;
224 data_blob_free(&blob);
229 /****************************************************************
230 ****************************************************************/
232 static uint32_t get_cldap_reply_server_flags(struct netlogon_samlogon_response *r,
235 switch (nt_version & 0x0000001f) {
245 return r->data.nt5.server_type;
250 return r->data.nt5_ex.server_type;
259 return r->data.nt5_ex.server_type;
269 return r->data.nt5_ex.server_type;
273 return r->data.nt5_ex.server_type;
279 /****************************************************************
280 ****************************************************************/
282 #define RETURN_ON_FALSE(x) if (!(x)) return false;
284 static bool check_cldap_reply_required_flags(uint32_t ret_flags,
287 if (ret_flags == 0) {
291 if (req_flags & DS_PDC_REQUIRED)
292 RETURN_ON_FALSE(ret_flags & NBT_SERVER_PDC);
294 if (req_flags & DS_GC_SERVER_REQUIRED)
295 RETURN_ON_FALSE(ret_flags & NBT_SERVER_GC);
297 if (req_flags & DS_ONLY_LDAP_NEEDED)
298 RETURN_ON_FALSE(ret_flags & NBT_SERVER_LDAP);
300 if ((req_flags & DS_DIRECTORY_SERVICE_REQUIRED) ||
301 (req_flags & DS_DIRECTORY_SERVICE_PREFERRED))
302 RETURN_ON_FALSE(ret_flags & NBT_SERVER_DS);
304 if (req_flags & DS_KDC_REQUIRED)
305 RETURN_ON_FALSE(ret_flags & NBT_SERVER_KDC);
307 if (req_flags & DS_TIMESERV_REQUIRED)
308 RETURN_ON_FALSE(ret_flags & NBT_SERVER_TIMESERV);
310 if (req_flags & DS_WRITABLE_REQUIRED)
311 RETURN_ON_FALSE(ret_flags & NBT_SERVER_WRITABLE);
316 /****************************************************************
317 ****************************************************************/
319 static NTSTATUS dsgetdcname_cache_fetch(TALLOC_CTX *mem_ctx,
320 const char *domain_name,
321 const struct GUID *domain_guid,
323 const char *site_name,
324 struct netr_DsRGetDCNameInfo **info_p)
328 enum ndr_err_code ndr_err;
329 struct netr_DsRGetDCNameInfo *info;
330 struct NETLOGON_SAM_LOGON_RESPONSE_EX r;
333 key = dsgetdcname_cache_key(mem_ctx, domain_name);
335 return NT_STATUS_NO_MEMORY;
338 if (!gencache_get_data_blob(key, &blob, NULL, NULL)) {
339 return NT_STATUS_NOT_FOUND;
342 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
344 return NT_STATUS_NO_MEMORY;
347 ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, &r,
348 (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX);
350 data_blob_free(&blob);
351 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
352 dsgetdcname_cache_delete(mem_ctx, domain_name);
353 return ndr_map_error2ntstatus(ndr_err);
356 status = make_dc_info_from_cldap_reply(mem_ctx, flags, NULL,
358 if (!NT_STATUS_IS_OK(status)) {
362 if (DEBUGLEVEL >= 10) {
363 NDR_PRINT_DEBUG(netr_DsRGetDCNameInfo, info);
367 if (!check_cldap_reply_required_flags(info->dc_flags, flags)) {
368 DEBUG(10,("invalid flags\n"));
369 return NT_STATUS_INVALID_PARAMETER;
372 if ((flags & DS_IP_REQUIRED) &&
373 (info->dc_address_type != DS_ADDRESS_TYPE_INET)) {
374 return NT_STATUS_INVALID_PARAMETER_MIX;
382 /****************************************************************
383 ****************************************************************/
385 static NTSTATUS dsgetdcname_cached(TALLOC_CTX *mem_ctx,
386 struct messaging_context *msg_ctx,
387 const char *domain_name,
388 const struct GUID *domain_guid,
390 const char *site_name,
391 struct netr_DsRGetDCNameInfo **info)
395 status = dsgetdcname_cache_fetch(mem_ctx, domain_name, domain_guid,
396 flags, site_name, info);
397 if (!NT_STATUS_IS_OK(status)
398 && !NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
399 DEBUG(10,("dsgetdcname_cached: cache fetch failed with: %s\n",
401 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
404 if (flags & DS_BACKGROUND_ONLY) {
408 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
409 struct netr_DsRGetDCNameInfo *dc_info;
411 status = dsgetdcname(mem_ctx, msg_ctx, domain_name,
412 domain_guid, site_name,
413 flags | DS_FORCE_REDISCOVERY,
416 if (!NT_STATUS_IS_OK(status)) {
426 /****************************************************************
427 ****************************************************************/
429 static bool check_allowed_required_flags(uint32_t flags,
430 const char *site_name)
432 uint32_t return_type = flags & (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME);
433 uint32_t offered_type = flags & (DS_IS_FLAT_NAME|DS_IS_DNS_NAME);
434 uint32_t query_type = flags & (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY);
436 /* FIXME: check for DSGETDC_VALID_FLAGS and check for excluse bits
437 * (DS_PDC_REQUIRED, DS_KDC_REQUIRED, DS_GC_SERVER_REQUIRED) */
439 debug_dsdcinfo_flags(10, flags);
441 if ((flags & DS_TRY_NEXTCLOSEST_SITE) && site_name) {
445 if (return_type == (DS_RETURN_FLAT_NAME|DS_RETURN_DNS_NAME)) {
449 if (offered_type == (DS_IS_DNS_NAME|DS_IS_FLAT_NAME)) {
453 if (query_type == (DS_BACKGROUND_ONLY|DS_FORCE_REDISCOVERY)) {
458 if ((flags & DS_RETURN_DNS_NAME) && (!(flags & DS_IP_REQUIRED))) {
459 printf("gd: here5 \n");
466 /****************************************************************
467 ****************************************************************/
469 static NTSTATUS discover_dc_netbios(TALLOC_CTX *mem_ctx,
470 const char *domain_name,
472 struct ip_service_name **returned_dclist,
476 enum nbt_name_type name_type = NBT_NAME_LOGON;
477 struct ip_service *iplist;
479 struct ip_service_name *dclist = NULL;
482 *returned_dclist = NULL;
485 if (lp_disable_netbios()) {
486 return NT_STATUS_NOT_SUPPORTED;
489 if (flags & DS_PDC_REQUIRED) {
490 name_type = NBT_NAME_PDC;
493 status = internal_resolve_name(domain_name, name_type, NULL,
495 "lmhosts wins bcast");
496 if (!NT_STATUS_IS_OK(status)) {
497 DEBUG(10,("discover_dc_netbios: failed to find DC\n"));
501 dclist = TALLOC_ZERO_ARRAY(mem_ctx, struct ip_service_name, count);
504 return NT_STATUS_NO_MEMORY;
507 for (i=0; i<count; i++) {
509 char addr[INET6_ADDRSTRLEN];
510 struct ip_service_name *r = &dclist[i];
512 print_sockaddr(addr, sizeof(addr),
515 r->ss = iplist[i].ss;
516 r->port = iplist[i].port;
517 r->hostname = talloc_strdup(mem_ctx, addr);
520 return NT_STATUS_NO_MEMORY;
525 *returned_dclist = dclist;
526 *returned_count = count;
532 /****************************************************************
533 ****************************************************************/
535 static NTSTATUS discover_dc_dns(TALLOC_CTX *mem_ctx,
536 const char *domain_name,
537 const struct GUID *domain_guid,
539 const char *site_name,
540 struct ip_service_name **returned_dclist,
545 struct dns_rr_srv *dcs = NULL;
548 struct ip_service_name *dclist = NULL;
551 if (flags & DS_PDC_REQUIRED) {
552 status = ads_dns_query_pdc(mem_ctx, domain_name,
554 } else if (flags & DS_GC_SERVER_REQUIRED) {
555 status = ads_dns_query_gcs(mem_ctx, domain_name, site_name,
557 } else if (flags & DS_KDC_REQUIRED) {
558 status = ads_dns_query_kdcs(mem_ctx, domain_name, site_name,
560 } else if (flags & DS_DIRECTORY_SERVICE_REQUIRED) {
561 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
563 } else if (domain_guid) {
564 status = ads_dns_query_dcs_guid(mem_ctx, domain_name,
565 domain_guid, &dcs, &numdcs);
567 status = ads_dns_query_dcs(mem_ctx, domain_name, site_name,
571 if (!NT_STATUS_IS_OK(status)) {
576 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
579 for (i=0;i<numdcs;i++) {
580 numaddrs += MAX(dcs[i].num_ips,1);
583 dclist = TALLOC_ZERO_ARRAY(mem_ctx,
584 struct ip_service_name,
587 return NT_STATUS_NO_MEMORY;
590 /* now unroll the list of IP addresses */
596 while ((i < numdcs) && (count < numaddrs)) {
598 struct ip_service_name *r = &dclist[count];
600 r->port = dcs[i].port;
601 r->hostname = dcs[i].hostname;
603 /* If we don't have an IP list for a name, lookup it up */
606 interpret_string_addr_prefer_ipv4(&r->ss,
611 /* use the IP addresses from the SRV sresponse */
613 if (j >= dcs[i].num_ips) {
619 r->ss = dcs[i].ss_s[j];
623 /* make sure it is a valid IP. I considered checking the
624 * negative connection cache, but this is the wrong place for
625 * it. Maybe only as a hac. After think about it, if all of
626 * the IP addresses retuend from DNS are dead, what hope does a
627 * netbios name lookup have? The standard reason for falling
628 * back to netbios lookups is that our DNS server doesn't know
629 * anything about the DC's -- jerry */
631 if (!is_zero_addr((struct sockaddr *)(void *)&r->ss)) {
637 *returned_dclist = dclist;
638 *return_count = count;
644 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
647 /****************************************************************
648 ****************************************************************/
650 static NTSTATUS make_domain_controller_info(TALLOC_CTX *mem_ctx,
652 const char *dc_address,
653 uint32_t dc_address_type,
654 const struct GUID *domain_guid,
655 const char *domain_name,
656 const char *forest_name,
658 const char *dc_site_name,
659 const char *client_site_name,
660 struct netr_DsRGetDCNameInfo **info_out)
662 struct netr_DsRGetDCNameInfo *info;
664 info = TALLOC_ZERO_P(mem_ctx, struct netr_DsRGetDCNameInfo);
665 NT_STATUS_HAVE_NO_MEMORY(info);
668 info->dc_unc = talloc_strdup(mem_ctx, dc_unc);
669 NT_STATUS_HAVE_NO_MEMORY(info->dc_unc);
673 if (!(dc_address[0] == '\\' && dc_address[1] == '\\')) {
674 info->dc_address = talloc_asprintf(mem_ctx, "\\\\%s",
677 info->dc_address = talloc_strdup(mem_ctx, dc_address);
679 NT_STATUS_HAVE_NO_MEMORY(info->dc_address);
682 info->dc_address_type = dc_address_type;
685 info->domain_guid = *domain_guid;
689 info->domain_name = talloc_strdup(mem_ctx, domain_name);
690 NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
693 if (forest_name && *forest_name) {
694 info->forest_name = talloc_strdup(mem_ctx, forest_name);
695 NT_STATUS_HAVE_NO_MEMORY(info->forest_name);
696 flags |= DS_DNS_FOREST_ROOT;
699 info->dc_flags = flags;
702 info->dc_site_name = talloc_strdup(mem_ctx, dc_site_name);
703 NT_STATUS_HAVE_NO_MEMORY(info->dc_site_name);
706 if (client_site_name) {
707 info->client_site_name = talloc_strdup(mem_ctx,
709 NT_STATUS_HAVE_NO_MEMORY(info->client_site_name);
717 /****************************************************************
718 ****************************************************************/
720 static void map_dc_and_domain_names(uint32_t flags,
722 const char *domain_name,
723 const char *dns_dc_name,
724 const char *dns_domain_name,
726 const char **hostname_p,
727 const char **domain_p)
729 switch (flags & 0xf0000000) {
730 case DS_RETURN_FLAT_NAME:
731 if (dc_name && domain_name &&
732 *dc_name && *domain_name) {
733 *hostname_p = dc_name;
734 *domain_p = domain_name;
737 case DS_RETURN_DNS_NAME:
739 if (dns_dc_name && dns_domain_name &&
740 *dns_dc_name && *dns_domain_name) {
741 *hostname_p = dns_dc_name;
742 *domain_p = dns_domain_name;
743 *dc_flags |= DS_DNS_DOMAIN | DS_DNS_CONTROLLER;
746 if (dc_name && domain_name &&
747 *dc_name && *domain_name) {
748 *hostname_p = dc_name;
749 *domain_p = domain_name;
755 /****************************************************************
756 ****************************************************************/
758 static NTSTATUS make_dc_info_from_cldap_reply(TALLOC_CTX *mem_ctx,
760 struct sockaddr_storage *ss,
761 struct NETLOGON_SAM_LOGON_RESPONSE_EX *r,
762 struct netr_DsRGetDCNameInfo **info)
764 const char *dc_hostname = NULL;
765 const char *dc_domain_name = NULL;
766 const char *dc_address = NULL;
767 const char *dc_forest = NULL;
768 uint32_t dc_address_type = 0;
769 uint32_t dc_flags = 0;
770 struct GUID *dc_domain_guid = NULL;
771 const char *dc_server_site = NULL;
772 const char *dc_client_site = NULL;
774 char addr[INET6_ADDRSTRLEN];
777 print_sockaddr(addr, sizeof(addr), ss);
779 dc_address_type = DS_ADDRESS_TYPE_INET;
782 if (!ss && r->sockaddr.pdc_ip) {
783 dc_address = r->sockaddr.pdc_ip;
784 dc_address_type = DS_ADDRESS_TYPE_INET;
786 dc_address = r->pdc_name;
787 dc_address_type = DS_ADDRESS_TYPE_NETBIOS;
790 map_dc_and_domain_names(flags,
799 dc_flags |= r->server_type;
800 dc_forest = r->forest;
801 dc_domain_guid = &r->domain_uuid;
802 dc_server_site = r->server_site;
803 dc_client_site = r->client_site;
805 return make_domain_controller_info(mem_ctx,
818 /****************************************************************
819 ****************************************************************/
821 static uint32_t map_ds_flags_to_nt_version(uint32_t flags)
823 uint32_t nt_version = 0;
825 if (flags & DS_PDC_REQUIRED) {
826 nt_version |= NETLOGON_NT_VERSION_PDC;
829 if (flags & DS_GC_SERVER_REQUIRED) {
830 nt_version |= NETLOGON_NT_VERSION_GC;
833 if (flags & DS_TRY_NEXTCLOSEST_SITE) {
834 nt_version |= NETLOGON_NT_VERSION_WITH_CLOSEST_SITE;
837 if (flags & DS_IP_REQUIRED) {
838 nt_version |= NETLOGON_NT_VERSION_IP;
844 /****************************************************************
845 ****************************************************************/
847 static NTSTATUS process_dc_dns(TALLOC_CTX *mem_ctx,
848 const char *domain_name,
850 struct ip_service_name *dclist,
852 struct netr_DsRGetDCNameInfo **info)
855 bool valid_dc = false;
856 struct netlogon_samlogon_response *r = NULL;
857 uint32_t nt_version = NETLOGON_NT_VERSION_5 |
858 NETLOGON_NT_VERSION_5EX;
859 uint32_t ret_flags = 0;
862 nt_version |= map_ds_flags_to_nt_version(flags);
864 for (i=0; i<num_dcs; i++) {
866 DEBUG(10,("LDAP ping to %s\n", dclist[i].hostname));
868 if (ads_cldap_netlogon(mem_ctx, dclist[i].hostname,
873 nt_version = r->ntver;
874 ret_flags = get_cldap_reply_server_flags(r, nt_version);
876 if (check_cldap_reply_required_flags(ret_flags, flags)) {
886 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
889 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
890 &r->data.nt5_ex, info);
891 if (NT_STATUS_IS_OK(status)) {
892 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
893 nt_version, &r->data.nt5_ex);
899 /****************************************************************
900 ****************************************************************/
902 static struct event_context *ev_context(void)
904 static struct event_context *ctx;
906 if (!ctx && !(ctx = event_context_init(NULL))) {
907 smb_panic("Could not init event context");
912 /****************************************************************
913 ****************************************************************/
915 static struct messaging_context *msg_context(TALLOC_CTX *mem_ctx)
917 static struct messaging_context *ctx;
919 if (!ctx && !(ctx = messaging_init(mem_ctx, procid_self(),
921 smb_panic("Could not init messaging context");
926 /****************************************************************
927 ****************************************************************/
929 static NTSTATUS process_dc_netbios(TALLOC_CTX *mem_ctx,
930 struct messaging_context *msg_ctx,
931 const char *domain_name,
933 struct ip_service_name *dclist,
935 struct netr_DsRGetDCNameInfo **info)
937 struct sockaddr_storage ss;
938 struct ip_service ip_list;
939 enum nbt_name_type name_type = NBT_NAME_LOGON;
942 const char *dc_name = NULL;
944 struct netlogon_samlogon_response *r = NULL;
945 bool store_cache = false;
946 uint32_t nt_version = NETLOGON_NT_VERSION_1 |
947 NETLOGON_NT_VERSION_5 |
948 NETLOGON_NT_VERSION_5EX_WITH_IP;
951 msg_ctx = msg_context(mem_ctx);
954 if (flags & DS_PDC_REQUIRED) {
955 name_type = NBT_NAME_PDC;
958 nt_version |= map_ds_flags_to_nt_version(flags);
960 DEBUG(10,("process_dc_netbios\n"));
962 for (i=0; i<num_dcs; i++) {
964 ip_list.ss = dclist[i].ss;
967 if (!interpret_string_addr_prefer_ipv4(&ss, dclist[i].hostname, AI_NUMERICHOST)) {
968 return NT_STATUS_UNSUCCESSFUL;
971 if (send_getdc_request(mem_ctx, msg_ctx,
972 &dclist[i].ss, domain_name,
977 for (k=0; k<5; k++) {
978 if (receive_getdc_response(mem_ctx,
985 namecache_store(dc_name, NBT_NAME_SERVER, 1, &ip_list);
992 if (name_status_find(domain_name,
998 struct NETLOGON_SAM_LOGON_RESPONSE_NT40 logon1;
1000 r = TALLOC_ZERO_P(mem_ctx, struct netlogon_samlogon_response);
1001 NT_STATUS_HAVE_NO_MEMORY(r);
1003 ZERO_STRUCT(logon1);
1005 nt_version = NETLOGON_NT_VERSION_1;
1007 logon1.nt_version = nt_version;
1008 logon1.pdc_name = tmp_dc_name;
1009 logon1.domain_name = talloc_strdup_upper(mem_ctx, domain_name);
1010 NT_STATUS_HAVE_NO_MEMORY(logon1.domain_name);
1012 r->data.nt4 = logon1;
1013 r->ntver = nt_version;
1015 map_netlogon_samlogon_response(r);
1017 namecache_store(tmp_dc_name, NBT_NAME_SERVER, 1, &ip_list);
1023 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1027 status = make_dc_info_from_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1028 &r->data.nt5_ex, info);
1029 if (NT_STATUS_IS_OK(status) && store_cache) {
1030 return store_cldap_reply(mem_ctx, flags, &dclist[i].ss,
1031 nt_version, &r->data.nt5_ex);
1037 /****************************************************************
1038 ****************************************************************/
1040 static NTSTATUS dsgetdcname_rediscover(TALLOC_CTX *mem_ctx,
1041 struct messaging_context *msg_ctx,
1042 const char *domain_name,
1043 const struct GUID *domain_guid,
1045 const char *site_name,
1046 struct netr_DsRGetDCNameInfo **info)
1048 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1049 struct ip_service_name *dclist = NULL;
1052 DEBUG(10,("dsgetdcname_rediscover\n"));
1054 if (flags & DS_IS_FLAT_NAME) {
1056 status = discover_dc_netbios(mem_ctx, domain_name, flags,
1058 NT_STATUS_NOT_OK_RETURN(status);
1060 return process_dc_netbios(mem_ctx, msg_ctx, domain_name, flags,
1061 dclist, num_dcs, info);
1064 if (flags & DS_IS_DNS_NAME) {
1066 status = discover_dc_dns(mem_ctx, domain_name, domain_guid,
1067 flags, site_name, &dclist, &num_dcs);
1068 NT_STATUS_NOT_OK_RETURN(status);
1070 return process_dc_dns(mem_ctx, domain_name, flags,
1071 dclist, num_dcs, info);
1074 status = discover_dc_dns(mem_ctx, domain_name, domain_guid, flags,
1075 site_name, &dclist, &num_dcs);
1077 if (NT_STATUS_IS_OK(status) && num_dcs != 0) {
1079 status = process_dc_dns(mem_ctx, domain_name, flags, dclist,
1081 if (NT_STATUS_IS_OK(status)) {
1086 status = discover_dc_netbios(mem_ctx, domain_name, flags, &dclist,
1088 NT_STATUS_NOT_OK_RETURN(status);
1090 return process_dc_netbios(mem_ctx, msg_ctx, domain_name, flags, dclist,
1094 static bool is_closest_site(struct netr_DsRGetDCNameInfo *info)
1096 if (info->dc_flags & DS_SERVER_CLOSEST) {
1100 if (!info->client_site_name) {
1104 if (!info->dc_site_name) {
1108 if (strcmp(info->client_site_name, info->dc_site_name) == 0) {
1115 /********************************************************************
1118 This will be the only public function here.
1119 ********************************************************************/
1121 NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
1122 struct messaging_context *msg_ctx,
1123 const char *domain_name,
1124 const struct GUID *domain_guid,
1125 const char *site_name,
1127 struct netr_DsRGetDCNameInfo **info)
1129 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1130 struct netr_DsRGetDCNameInfo *myinfo = NULL;
1131 char *query_site = NULL;
1133 struct netr_DsRGetDCNameInfo *first_info = NULL;
1135 DEBUG(10,("dsgetdcname: domain_name: %s, "
1136 "domain_guid: %s, site_name: %s, flags: 0x%08x\n",
1138 domain_guid ? GUID_string(mem_ctx, domain_guid) : "(null)",
1143 if (!check_allowed_required_flags(flags, site_name)) {
1144 DEBUG(0,("invalid flags specified\n"));
1145 return NT_STATUS_INVALID_PARAMETER;
1148 if ((site_name == NULL) || (site_name[0] == '\0')) {
1149 query_site = sitename_fetch(domain_name);
1151 query_site = SMB_STRDUP(site_name);
1154 if (flags & DS_FORCE_REDISCOVERY) {
1158 status = dsgetdcname_cached(mem_ctx, msg_ctx, domain_name, domain_guid,
1159 flags, query_site, &myinfo);
1160 if (NT_STATUS_IS_OK(status)) {
1164 if (flags & DS_BACKGROUND_ONLY) {
1169 status = dsgetdcname_rediscover(mem_ctx, msg_ctx, domain_name,
1170 domain_guid, flags, query_site,
1174 SAFE_FREE(query_site);
1176 if (!NT_STATUS_IS_OK(status)) {
1179 return NT_STATUS_OK;
1185 TALLOC_FREE(first_info);
1186 } else if (!is_closest_site(myinfo)) {
1188 first_info = myinfo;
1189 /* TODO: may use the next_closest_site here */
1190 query_site = SMB_STRDUP(myinfo->client_site_name);
1195 return NT_STATUS_OK;