2 Unix SMB/CIFS implementation.
4 Winbind daemon connection manager
6 Copyright (C) Tim Potter 2001
7 Copyright (C) Andrew Bartlett 2002
8 Copyright (C) Gerald (Jerry) Carter 2003-2005.
9 Copyright (C) Volker Lendecke 2004-2005
10 Copyright (C) Jeremy Allison 2006
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 We need to manage connections to domain controllers without having to
28 mess up the main winbindd code with other issues. The aim of the
29 connection manager is to:
31 - make connections to domain controllers and cache them
32 - re-establish connections when networks or servers go down
33 - centralise the policy on connection timeouts, domain controller
35 - manage re-entrancy for when winbindd becomes able to handle
36 multiple outstanding rpc requests
38 Why not have connection management as part of the rpc layer like tng?
39 Good question. This code may morph into libsmb/rpc_cache.c or something
40 like that but at the moment it's simply staying as part of winbind. I
41 think the TNG architecture of forcing every user of the rpc layer to use
42 the connection caching system is a bad idea. It should be an optional
43 method of using the routines.
45 The TNG design is quite good but I disagree with some aspects of the
53 - I'm pretty annoyed by all the make_nmb_name() stuff. It should be
54 moved down into another function.
56 - Take care when destroying cli_structs as they can be shared between
63 #include "../libcli/auth/libcli_auth.h"
64 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
65 #include "rpc_client/cli_netlogon.h"
66 #include "../librpc/gen_ndr/cli_samr.h"
67 #include "../librpc/gen_ndr/cli_lsa.h"
68 #include "rpc_client/cli_lsarpc.h"
69 #include "../librpc/gen_ndr/ndr_dssetup_c.h"
70 #include "libads/sitename_cache.h"
71 #include "librpc/gen_ndr/messaging.h"
72 #include "libsmb/clidgram.h"
75 #include "../libcli/security/security.h"
78 #define DBGC_CLASS DBGC_WINBIND
82 struct sockaddr_storage ss;
85 extern struct winbindd_methods reconnect_methods;
86 extern bool override_logfile;
88 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
89 static void set_dc_type_and_flags( struct winbindd_domain *domain );
90 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
91 struct dc_name_ip **dcs, int *num_dcs);
93 /****************************************************************
94 Child failed to find DC's. Reschedule check.
95 ****************************************************************/
97 static void msg_failed_to_go_online(struct messaging_context *msg,
100 struct server_id server_id,
103 struct winbindd_domain *domain;
104 const char *domainname = (const char *)data->data;
106 if (data->data == NULL || data->length == 0) {
110 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
112 for (domain = domain_list(); domain; domain = domain->next) {
113 if (domain->internal) {
117 if (strequal(domain->name, domainname)) {
118 if (domain->online) {
119 /* We're already online, ignore. */
120 DEBUG(5,("msg_fail_to_go_online: domain %s "
121 "already online.\n", domainname));
125 /* Reschedule the online check. */
126 set_domain_offline(domain);
132 /****************************************************************
133 Actually cause a reconnect from a message.
134 ****************************************************************/
136 static void msg_try_to_go_online(struct messaging_context *msg,
139 struct server_id server_id,
142 struct winbindd_domain *domain;
143 const char *domainname = (const char *)data->data;
145 if (data->data == NULL || data->length == 0) {
149 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
151 for (domain = domain_list(); domain; domain = domain->next) {
152 if (domain->internal) {
156 if (strequal(domain->name, domainname)) {
158 if (domain->online) {
159 /* We're already online, ignore. */
160 DEBUG(5,("msg_try_to_go_online: domain %s "
161 "already online.\n", domainname));
165 /* This call takes care of setting the online
166 flag to true if we connected, or re-adding
167 the offline handler if false. Bypasses online
168 check so always does network calls. */
170 init_dc_connection_network(domain);
176 /****************************************************************
177 Fork a child to try and contact a DC. Do this as contacting a
178 DC requires blocking lookups and we don't want to block our
180 ****************************************************************/
182 static bool fork_child_dc_connect(struct winbindd_domain *domain)
184 struct dc_name_ip *dcs = NULL;
186 TALLOC_CTX *mem_ctx = NULL;
187 pid_t parent_pid = sys_getpid();
190 if (domain->dc_probe_pid != (pid_t)-1) {
192 * We might already have a DC probe
193 * child working, check.
195 if (process_exists_by_pid(domain->dc_probe_pid)) {
196 DEBUG(10,("fork_child_dc_connect: pid %u already "
197 "checking for DC's.\n",
198 (unsigned int)domain->dc_probe_pid));
201 domain->dc_probe_pid = (pid_t)-1;
204 domain->dc_probe_pid = sys_fork();
206 if (domain->dc_probe_pid == (pid_t)-1) {
207 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
211 if (domain->dc_probe_pid != (pid_t)0) {
213 messaging_register(winbind_messaging_context(), NULL,
214 MSG_WINBIND_TRY_TO_GO_ONLINE,
215 msg_try_to_go_online);
216 messaging_register(winbind_messaging_context(), NULL,
217 MSG_WINBIND_FAILED_TO_GO_ONLINE,
218 msg_failed_to_go_online);
224 /* Leave messages blocked - we will never process one. */
226 if (!override_logfile) {
227 if (asprintf(&lfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
228 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
233 if (!winbindd_reinit_after_fork(lfile)) {
234 messaging_send_buf(winbind_messaging_context(),
235 pid_to_procid(parent_pid),
236 MSG_WINBIND_FAILED_TO_GO_ONLINE,
237 (uint8 *)domain->name,
238 strlen(domain->name)+1);
243 mem_ctx = talloc_init("fork_child_dc_connect");
245 DEBUG(0,("talloc_init failed.\n"));
246 messaging_send_buf(winbind_messaging_context(),
247 pid_to_procid(parent_pid),
248 MSG_WINBIND_FAILED_TO_GO_ONLINE,
249 (uint8 *)domain->name,
250 strlen(domain->name)+1);
254 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
255 /* Still offline ? Can't find DC's. */
256 messaging_send_buf(winbind_messaging_context(),
257 pid_to_procid(parent_pid),
258 MSG_WINBIND_FAILED_TO_GO_ONLINE,
259 (uint8 *)domain->name,
260 strlen(domain->name)+1);
264 /* We got a DC. Send a message to our parent to get it to
265 try and do the same. */
267 messaging_send_buf(winbind_messaging_context(),
268 pid_to_procid(parent_pid),
269 MSG_WINBIND_TRY_TO_GO_ONLINE,
270 (uint8 *)domain->name,
271 strlen(domain->name)+1);
275 /****************************************************************
276 Handler triggered if we're offline to try and detect a DC.
277 ****************************************************************/
279 static void check_domain_online_handler(struct event_context *ctx,
280 struct timed_event *te,
284 struct winbindd_domain *domain =
285 (struct winbindd_domain *)private_data;
287 DEBUG(10,("check_domain_online_handler: called for domain "
288 "%s (online = %s)\n", domain->name,
289 domain->online ? "True" : "False" ));
291 TALLOC_FREE(domain->check_online_event);
293 /* Are we still in "startup" mode ? */
295 if (domain->startup && (time_mono(NULL) > domain->startup_time + 30)) {
296 /* No longer in "startup" mode. */
297 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
299 domain->startup = False;
302 /* We've been told to stay offline, so stay
305 if (get_global_winbindd_state_offline()) {
306 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
311 /* Fork a child to test if it can contact a DC.
312 If it can then send ourselves a message to
313 cause a reconnect. */
315 fork_child_dc_connect(domain);
318 /****************************************************************
319 If we're still offline setup the timeout check.
320 ****************************************************************/
322 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
324 int wbr = lp_winbind_reconnect_delay();
326 if (domain->startup) {
327 domain->check_online_timeout = 10;
328 } else if (domain->check_online_timeout < wbr) {
329 domain->check_online_timeout = wbr;
333 /****************************************************************
334 Set domain offline and also add handler to put us back online
336 ****************************************************************/
338 void set_domain_offline(struct winbindd_domain *domain)
340 DEBUG(10,("set_domain_offline: called for domain %s\n",
343 TALLOC_FREE(domain->check_online_event);
345 if (domain->internal) {
346 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
351 domain->online = False;
353 /* Offline domains are always initialized. They're
354 re-initialized when they go back online. */
356 domain->initialized = True;
358 /* We only add the timeout handler that checks and
359 allows us to go back online when we've not
360 been told to remain offline. */
362 if (get_global_winbindd_state_offline()) {
363 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
368 /* If we're in startup mode, check again in 10 seconds, not in
369 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
371 calc_new_online_timeout_check(domain);
373 domain->check_online_event = event_add_timed(winbind_event_context(),
375 timeval_current_ofs(domain->check_online_timeout,0),
376 check_domain_online_handler,
379 /* The above *has* to succeed for winbindd to work. */
380 if (!domain->check_online_event) {
381 smb_panic("set_domain_offline: failed to add online handler");
384 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
387 /* Send an offline message to the idmap child when our
388 primary domain goes offline */
390 if ( domain->primary ) {
391 struct winbindd_child *idmap = idmap_child();
393 if ( idmap->pid != 0 ) {
394 messaging_send_buf(winbind_messaging_context(),
395 pid_to_procid(idmap->pid),
397 (uint8 *)domain->name,
398 strlen(domain->name)+1);
405 /****************************************************************
406 Set domain online - if allowed.
407 ****************************************************************/
409 static void set_domain_online(struct winbindd_domain *domain)
411 DEBUG(10,("set_domain_online: called for domain %s\n",
414 if (domain->internal) {
415 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
420 if (get_global_winbindd_state_offline()) {
421 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
426 winbindd_set_locator_kdc_envs(domain);
428 /* If we are waiting to get a krb5 ticket, trigger immediately. */
429 ccache_regain_all_now();
431 /* Ok, we're out of any startup mode now... */
432 domain->startup = False;
434 if (domain->online == False) {
435 /* We were offline - now we're online. We default to
436 using the MS-RPC backend if we started offline,
437 and if we're going online for the first time we
438 should really re-initialize the backends and the
439 checks to see if we're talking to an AD or NT domain.
442 domain->initialized = False;
444 /* 'reconnect_methods' is the MS-RPC backend. */
445 if (domain->backend == &reconnect_methods) {
446 domain->backend = NULL;
450 /* Ensure we have no online timeout checks. */
451 domain->check_online_timeout = 0;
452 TALLOC_FREE(domain->check_online_event);
454 /* Ensure we ignore any pending child messages. */
455 messaging_deregister(winbind_messaging_context(),
456 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
457 messaging_deregister(winbind_messaging_context(),
458 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
460 domain->online = True;
462 /* Send an online message to the idmap child when our
463 primary domain comes online */
465 if ( domain->primary ) {
466 struct winbindd_child *idmap = idmap_child();
468 if ( idmap->pid != 0 ) {
469 messaging_send_buf(winbind_messaging_context(),
470 pid_to_procid(idmap->pid),
472 (uint8 *)domain->name,
473 strlen(domain->name)+1);
480 /****************************************************************
481 Requested to set a domain online.
482 ****************************************************************/
484 void set_domain_online_request(struct winbindd_domain *domain)
488 DEBUG(10,("set_domain_online_request: called for domain %s\n",
491 if (get_global_winbindd_state_offline()) {
492 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
497 if (domain->internal) {
498 DEBUG(10, ("set_domain_online_request: Internal domains are "
503 /* We've been told it's safe to go online and
504 try and connect to a DC. But I don't believe it
505 because network manager seems to lie.
506 Wait at least 5 seconds. Heuristics suck... */
511 /* Go into "startup" mode again. */
512 domain->startup_time = time_mono(NULL);
513 domain->startup = True;
517 if (!domain->check_online_event) {
518 /* If we've come from being globally offline we
519 don't have a check online event handler set.
520 We need to add one now we're trying to go
523 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
527 TALLOC_FREE(domain->check_online_event);
529 domain->check_online_event = event_add_timed(winbind_event_context(),
532 check_domain_online_handler,
535 /* The above *has* to succeed for winbindd to work. */
536 if (!domain->check_online_event) {
537 smb_panic("set_domain_online_request: failed to add online handler");
541 /****************************************************************
542 Add -ve connection cache entries for domain and realm.
543 ****************************************************************/
545 static void winbind_add_failed_connection_entry(
546 const struct winbindd_domain *domain,
550 add_failed_connection_entry(domain->name, server, result);
551 /* If this was the saf name for the last thing we talked to,
553 saf_delete(domain->name);
554 if (*domain->alt_name) {
555 add_failed_connection_entry(domain->alt_name, server, result);
556 saf_delete(domain->alt_name);
558 winbindd_unset_locator_kdc_env(domain);
561 /* Choose between anonymous or authenticated connections. We need to use
562 an authenticated connection if DCs have the RestrictAnonymous registry
563 entry set > 0, or the "Additional restrictions for anonymous
564 connections" set in the win2k Local Security Policy.
566 Caller to free() result in domain, username, password
569 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
571 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
572 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
573 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
575 if (*username && **username) {
577 if (!*domain || !**domain)
578 *domain = smb_xstrdup(lp_workgroup());
580 if (!*password || !**password)
581 *password = smb_xstrdup("");
583 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
584 *domain, *username));
587 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
588 *username = smb_xstrdup("");
589 *domain = smb_xstrdup("");
590 *password = smb_xstrdup("");
594 static bool get_dc_name_via_netlogon(struct winbindd_domain *domain,
596 struct sockaddr_storage *dc_ss)
598 struct winbindd_domain *our_domain = NULL;
599 struct rpc_pipe_client *netlogon_pipe = NULL;
603 unsigned int orig_timeout;
604 const char *tmp = NULL;
606 struct dcerpc_binding_handle *b;
608 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
615 if (domain->primary) {
619 our_domain = find_our_domain();
621 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
625 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
626 if (!NT_STATUS_IS_OK(result)) {
627 talloc_destroy(mem_ctx);
631 b = netlogon_pipe->binding_handle;
633 /* This call can take a long time - allow the server to time out.
634 35 seconds should do it. */
636 orig_timeout = rpccli_set_timeout(netlogon_pipe, 35000);
638 if (our_domain->active_directory) {
639 struct netr_DsRGetDCNameInfo *domain_info = NULL;
641 result = dcerpc_netr_DsRGetDCName(b,
650 if (NT_STATUS_IS_OK(result) && W_ERROR_IS_OK(werr)) {
652 mem_ctx, domain_info->dc_unc);
654 DEBUG(0, ("talloc_strdup failed\n"));
655 talloc_destroy(mem_ctx);
658 if (strlen(domain->alt_name) == 0) {
659 fstrcpy(domain->alt_name,
660 domain_info->domain_name);
662 if (strlen(domain->forest_name) == 0) {
663 fstrcpy(domain->forest_name,
664 domain_info->forest_name);
668 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
675 /* And restore our original timeout. */
676 rpccli_set_timeout(netlogon_pipe, orig_timeout);
678 if (!NT_STATUS_IS_OK(result)) {
679 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
681 talloc_destroy(mem_ctx);
685 if (!W_ERROR_IS_OK(werr)) {
686 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
688 talloc_destroy(mem_ctx);
692 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
693 p = strip_hostname(tmp);
697 talloc_destroy(mem_ctx);
699 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
701 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
709 * Helper function to assemble trust password and account name
711 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
712 char **machine_password,
713 char **machine_account,
714 char **machine_krb5_principal)
716 const char *account_name;
717 const char *name = NULL;
719 /* If we are a DC and this is not our own domain */
724 struct winbindd_domain *our_domain = find_our_domain();
727 return NT_STATUS_INVALID_SERVER_STATE;
729 name = our_domain->name;
732 if (!get_trust_pw_clear(name, machine_password,
733 &account_name, NULL))
735 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
738 if ((machine_account != NULL) &&
739 (asprintf(machine_account, "%s$", account_name) == -1))
741 return NT_STATUS_NO_MEMORY;
744 /* For now assume our machine account only exists in our domain */
746 if (machine_krb5_principal != NULL)
748 struct winbindd_domain *our_domain = find_our_domain();
751 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
754 if (asprintf(machine_krb5_principal, "%s$@%s",
755 account_name, our_domain->alt_name) == -1)
757 return NT_STATUS_NO_MEMORY;
760 strupper_m(*machine_krb5_principal);
766 /************************************************************************
767 Given a fd with a just-connected TCP connection to a DC, open a connection
769 ************************************************************************/
771 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
773 const char *controller,
774 struct cli_state **cli,
777 char *machine_password = NULL;
778 char *machine_krb5_principal = NULL;
779 char *machine_account = NULL;
780 char *ipc_username = NULL;
781 char *ipc_domain = NULL;
782 char *ipc_password = NULL;
784 struct named_mutex *mutex;
786 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
788 struct sockaddr peeraddr;
789 socklen_t peeraddr_len;
791 struct sockaddr_in *peeraddr_in =
792 (struct sockaddr_in *)(void *)&peeraddr;
794 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
795 controller, domain->name ));
799 mutex = grab_named_mutex(talloc_tos(), controller,
800 WINBIND_SERVER_MUTEX_WAIT_TIME);
802 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
804 result = NT_STATUS_POSSIBLE_DEADLOCK;
808 if ((*cli = cli_initialise()) == NULL) {
809 DEBUG(1, ("Could not cli_initialize\n"));
810 result = NT_STATUS_NO_MEMORY;
814 (*cli)->timeout = 10000; /* 10 seconds */
816 fstrcpy((*cli)->desthost, controller);
817 (*cli)->use_kerberos = True;
819 peeraddr_len = sizeof(peeraddr);
821 if ((getpeername((*cli)->fd, &peeraddr, &peeraddr_len) != 0)) {
822 DEBUG(0,("cm_prepare_connection: getpeername failed with: %s\n",
824 result = NT_STATUS_UNSUCCESSFUL;
828 if ((peeraddr_len != sizeof(struct sockaddr_in))
830 && (peeraddr_len != sizeof(struct sockaddr_in6))
833 DEBUG(0,("cm_prepare_connection: got unexpected peeraddr len %d\n",
835 result = NT_STATUS_UNSUCCESSFUL;
839 if ((peeraddr_in->sin_family != PF_INET)
841 && (peeraddr_in->sin_family != PF_INET6)
844 DEBUG(0,("cm_prepare_connection: got unexpected family %d\n",
845 peeraddr_in->sin_family));
846 result = NT_STATUS_UNSUCCESSFUL;
850 result = cli_negprot(*cli);
852 if (!NT_STATUS_IS_OK(result)) {
853 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
857 if (!is_dc_trusted_domain_situation(domain->name) &&
858 (*cli)->protocol >= PROTOCOL_NT1 &&
859 (*cli)->capabilities & CAP_EXTENDED_SECURITY)
861 ADS_STATUS ads_status;
863 result = get_trust_creds(domain, &machine_password,
865 &machine_krb5_principal);
866 if (!NT_STATUS_IS_OK(result)) {
870 if (lp_security() == SEC_ADS) {
872 /* Try a krb5 session */
874 (*cli)->use_kerberos = True;
875 DEBUG(5, ("connecting to %s from %s with kerberos principal "
876 "[%s] and realm [%s]\n", controller, global_myname(),
877 machine_krb5_principal, domain->alt_name));
879 winbindd_set_locator_kdc_envs(domain);
881 ads_status = cli_session_setup_spnego(*cli,
882 machine_krb5_principal,
887 if (!ADS_ERR_OK(ads_status)) {
888 DEBUG(4,("failed kerberos session setup with %s\n",
889 ads_errstr(ads_status)));
892 result = ads_ntstatus(ads_status);
893 if (NT_STATUS_IS_OK(result)) {
894 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
895 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
896 if (!NT_STATUS_IS_OK(result)) {
899 goto session_setup_done;
903 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
904 (*cli)->use_kerberos = False;
906 DEBUG(5, ("connecting to %s from %s with username "
907 "[%s]\\[%s]\n", controller, global_myname(),
908 lp_workgroup(), machine_account));
910 ads_status = cli_session_setup_spnego(*cli,
915 if (!ADS_ERR_OK(ads_status)) {
916 DEBUG(4, ("authenticated session setup failed with %s\n",
917 ads_errstr(ads_status)));
920 result = ads_ntstatus(ads_status);
921 if (NT_STATUS_IS_OK(result)) {
922 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
923 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
924 if (!NT_STATUS_IS_OK(result)) {
927 goto session_setup_done;
931 /* Fall back to non-kerberos session setup with auth_user */
933 (*cli)->use_kerberos = False;
935 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
937 if ((((*cli)->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
938 (strlen(ipc_username) > 0)) {
940 /* Only try authenticated if we have a username */
942 DEBUG(5, ("connecting to %s from %s with username "
943 "[%s]\\[%s]\n", controller, global_myname(),
944 ipc_domain, ipc_username));
946 if (NT_STATUS_IS_OK(cli_session_setup(
948 ipc_password, strlen(ipc_password)+1,
949 ipc_password, strlen(ipc_password)+1,
951 /* Successful logon with given username. */
952 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
953 if (!NT_STATUS_IS_OK(result)) {
956 goto session_setup_done;
958 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
959 ipc_domain, ipc_username ));
965 /* Fall back to anonymous connection, this might fail later */
966 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
967 "connection for DC %s\n",
970 if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
972 DEBUG(5, ("Connected anonymously\n"));
973 result = cli_init_creds(*cli, "", "", "");
974 if (!NT_STATUS_IS_OK(result)) {
977 goto session_setup_done;
980 result = cli_nt_error(*cli);
982 if (NT_STATUS_IS_OK(result))
983 result = NT_STATUS_UNSUCCESSFUL;
985 /* We can't session setup */
991 /* cache the server name for later connections */
993 saf_store( domain->name, (*cli)->desthost );
994 if (domain->alt_name && (*cli)->use_kerberos) {
995 saf_store( domain->alt_name, (*cli)->desthost );
998 winbindd_set_locator_kdc_envs(domain);
1000 result = cli_tcon_andx(*cli, "IPC$", "IPC", "", 0);
1002 if (!NT_STATUS_IS_OK(result)) {
1003 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
1010 /* set the domain if empty; needed for schannel connections */
1011 if ( !(*cli)->domain[0] ) {
1012 result = cli_set_domain((*cli), domain->name);
1013 if (!NT_STATUS_IS_OK(result)) {
1018 result = NT_STATUS_OK;
1022 SAFE_FREE(machine_account);
1023 SAFE_FREE(machine_password);
1024 SAFE_FREE(machine_krb5_principal);
1025 SAFE_FREE(ipc_username);
1026 SAFE_FREE(ipc_domain);
1027 SAFE_FREE(ipc_password);
1029 if (!NT_STATUS_IS_OK(result)) {
1030 winbind_add_failed_connection_entry(domain, controller, result);
1031 if ((*cli) != NULL) {
1040 /*******************************************************************
1041 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1044 Keeps the list unique by not adding duplicate entries.
1046 @param[in] mem_ctx talloc memory context to allocate from
1047 @param[in] domain_name domain of the DC
1048 @param[in] dcname name of the DC to add to the list
1049 @param[in] pss Internet address and port pair to add to the list
1050 @param[in,out] dcs array of dc_name_ip structures to add to
1051 @param[in,out] num_dcs number of dcs returned in the dcs array
1052 @return true if the list was added to, false otherwise
1053 *******************************************************************/
1055 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1056 const char *dcname, struct sockaddr_storage *pss,
1057 struct dc_name_ip **dcs, int *num)
1061 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1062 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1066 /* Make sure there's no duplicates in the list */
1067 for (i=0; i<*num; i++)
1069 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1070 (struct sockaddr *)(void *)pss))
1073 *dcs = TALLOC_REALLOC_ARRAY(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1078 fstrcpy((*dcs)[*num].name, dcname);
1079 (*dcs)[*num].ss = *pss;
1084 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1085 struct sockaddr_storage *pss, uint16 port,
1086 struct sockaddr_storage **addrs, int *num)
1088 *addrs = TALLOC_REALLOC_ARRAY(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1090 if (*addrs == NULL) {
1095 (*addrs)[*num] = *pss;
1096 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1102 /*******************************************************************
1103 convert an ip to a name
1104 *******************************************************************/
1106 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1107 const struct winbindd_domain *domain,
1108 struct sockaddr_storage *pss,
1111 struct ip_service ip_list;
1112 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1114 const char *dc_name;
1120 /* For active directory servers, try to get the ldap server name.
1121 None of these failures should be considered critical for now */
1123 if (lp_security() == SEC_ADS) {
1125 ADS_STATUS ads_status;
1126 char addr[INET6_ADDRSTRLEN];
1128 print_sockaddr(addr, sizeof(addr), pss);
1130 ads = ads_init(domain->alt_name, domain->name, addr);
1131 ads->auth.flags |= ADS_AUTH_NO_BIND;
1133 ads_status = ads_connect(ads);
1134 if (ADS_ERR_OK(ads_status)) {
1135 /* We got a cldap packet. */
1136 fstrcpy(name, ads->config.ldap_server_name);
1137 namecache_store(name, 0x20, 1, &ip_list);
1139 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1141 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1142 if (ads_closest_dc(ads)) {
1143 char *sitename = sitename_fetch(ads->config.realm);
1145 /* We're going to use this KDC for this realm/domain.
1146 If we are using sites, then force the krb5 libs
1149 create_local_private_krb5_conf_for_domain(domain->alt_name,
1155 SAFE_FREE(sitename);
1157 /* use an off site KDC */
1158 create_local_private_krb5_conf_for_domain(domain->alt_name,
1164 winbindd_set_locator_kdc_envs(domain);
1166 /* Ensure we contact this DC also. */
1167 saf_store( domain->name, name);
1168 saf_store( domain->alt_name, name);
1171 ads_destroy( &ads );
1175 ads_destroy( &ads );
1179 status = nbt_getdc(winbind_messaging_context(), pss, domain->name,
1180 &domain->sid, nt_version, mem_ctx, &nt_version,
1182 if (NT_STATUS_IS_OK(status)) {
1183 fstrcpy(name, dc_name);
1184 namecache_store(name, 0x20, 1, &ip_list);
1188 /* try node status request */
1190 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1191 namecache_store(name, 0x20, 1, &ip_list);
1197 /*******************************************************************
1198 Retrieve a list of IP addresses for domain controllers.
1200 The array is sorted in the preferred connection order.
1202 @param[in] mem_ctx talloc memory context to allocate from
1203 @param[in] domain domain to retrieve DCs for
1204 @param[out] dcs array of dcs that will be returned
1205 @param[out] num_dcs number of dcs returned in the dcs array
1207 *******************************************************************/
1209 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1210 struct dc_name_ip **dcs, int *num_dcs)
1213 struct sockaddr_storage ss;
1214 struct ip_service *ip_list = NULL;
1215 int iplist_size = 0;
1218 enum security_types sec = (enum security_types)lp_security();
1220 is_our_domain = strequal(domain->name, lp_workgroup());
1222 /* If not our domain, get the preferred DC, by asking our primary DC */
1224 && get_dc_name_via_netlogon(domain, dcname, &ss)
1225 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1228 char addr[INET6_ADDRSTRLEN];
1229 print_sockaddr(addr, sizeof(addr), &ss);
1230 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1235 if (sec == SEC_ADS) {
1236 char *sitename = NULL;
1238 /* We need to make sure we know the local site before
1239 doing any DNS queries, as this will restrict the
1240 get_sorted_dc_list() call below to only fetching
1241 DNS records for the correct site. */
1243 /* Find any DC to get the site record.
1244 We deliberately don't care about the
1247 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1249 sitename = sitename_fetch(domain->alt_name);
1252 /* Do the site-specific AD dns lookup first. */
1253 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1254 &iplist_size, True);
1256 /* Add ips to the DC array. We don't look up the name
1257 of the DC in this function, but we fill in the char*
1258 of the ip now to make the failed connection cache
1260 for ( i=0; i<iplist_size; i++ ) {
1261 char addr[INET6_ADDRSTRLEN];
1262 print_sockaddr(addr, sizeof(addr),
1264 add_one_dc_unique(mem_ctx,
1273 SAFE_FREE(sitename);
1277 /* Now we add DCs from the main AD DNS lookup. */
1278 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1279 &iplist_size, True);
1281 for ( i=0; i<iplist_size; i++ ) {
1282 char addr[INET6_ADDRSTRLEN];
1283 print_sockaddr(addr, sizeof(addr),
1285 add_one_dc_unique(mem_ctx,
1297 /* Try standard netbios queries if no ADS */
1298 if (*num_dcs == 0) {
1299 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1302 for ( i=0; i<iplist_size; i++ ) {
1303 char addr[INET6_ADDRSTRLEN];
1304 print_sockaddr(addr, sizeof(addr),
1306 add_one_dc_unique(mem_ctx,
1321 /*******************************************************************
1322 Find and make a connection to a DC in the given domain.
1324 @param[in] mem_ctx talloc memory context to allocate from
1325 @param[in] domain domain to find a dc in
1326 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1327 @param[out] pss DC Internet address and port
1328 @param[out] fd fd of the open socket connected to the newly found dc
1329 @return true when a DC connection is made, false otherwise
1330 *******************************************************************/
1332 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1333 struct winbindd_domain *domain,
1334 fstring dcname, struct sockaddr_storage *pss, int *fd)
1336 struct dc_name_ip *dcs = NULL;
1339 const char **dcnames = NULL;
1340 int num_dcnames = 0;
1342 struct sockaddr_storage *addrs = NULL;
1353 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1356 for (i=0; i<num_dcs; i++) {
1358 if (!add_string_to_array(mem_ctx, dcs[i].name,
1359 &dcnames, &num_dcnames)) {
1362 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1363 &addrs, &num_addrs)) {
1368 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1371 if ((addrs == NULL) || (dcnames == NULL))
1374 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1375 num_addrs, 0, fd, &fd_index, NULL);
1376 if (!NT_STATUS_IS_OK(status)) {
1377 for (i=0; i<num_dcs; i++) {
1378 char ab[INET6_ADDRSTRLEN];
1379 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1380 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1381 "domain %s address %s. Error was %s\n",
1382 domain->name, ab, nt_errstr(status) ));
1383 winbind_add_failed_connection_entry(domain,
1384 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1389 *pss = addrs[fd_index];
1391 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1392 /* Ok, we've got a name for the DC */
1393 fstrcpy(dcname, dcnames[fd_index]);
1397 /* Try to figure out the name */
1398 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1402 /* We can not continue without the DC's name */
1403 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1404 NT_STATUS_UNSUCCESSFUL);
1406 /* Throw away all arrays as we're doing this again. */
1410 TALLOC_FREE(dcnames);
1422 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1424 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1428 static void store_current_dc_in_gencache(const char *domain_name,
1429 const char *dc_name,
1430 struct cli_state *cli)
1432 char addr[INET6_ADDRSTRLEN];
1438 if (cli->fd == -1) {
1441 get_peer_addr(cli->fd, addr, sizeof(addr));
1443 key = current_dc_key(talloc_tos(), domain_name);
1448 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1449 if (value == NULL) {
1453 gencache_set(key, value, 0x7ffffffff);
1459 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1460 const char *domain_name,
1461 char **p_dc_name, char **p_dc_ip)
1463 char *key, *value, *p;
1465 char *dc_name = NULL;
1468 key = current_dc_key(talloc_tos(), domain_name);
1472 if (!gencache_get(key, &value, NULL)) {
1475 p = strchr(value, ' ');
1479 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1480 if (dc_ip == NULL) {
1483 dc_name = talloc_strdup(mem_ctx, p+1);
1484 if (dc_name == NULL) {
1488 if (p_dc_ip != NULL) {
1492 if (p_dc_name != NULL) {
1493 *p_dc_name = dc_name;
1498 TALLOC_FREE(dc_name);
1504 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1505 struct winbindd_cm_conn *new_conn)
1507 TALLOC_CTX *mem_ctx;
1509 char *saf_servername = saf_fetch( domain->name );
1512 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1513 SAFE_FREE(saf_servername);
1514 set_domain_offline(domain);
1515 return NT_STATUS_NO_MEMORY;
1518 /* we have to check the server affinity cache here since
1519 later we select a DC based on response time and not preference */
1521 /* Check the negative connection cache
1522 before talking to it. It going down may have
1523 triggered the reconnection. */
1525 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1527 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1528 saf_servername, domain->name ));
1530 /* convert an ip address to a name */
1531 if (is_ipaddress( saf_servername ) ) {
1533 struct sockaddr_storage ss;
1535 if (!interpret_string_addr(&ss, saf_servername,
1537 return NT_STATUS_UNSUCCESSFUL;
1539 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1540 fstrcpy( domain->dcname, saf_name );
1542 winbind_add_failed_connection_entry(
1543 domain, saf_servername,
1544 NT_STATUS_UNSUCCESSFUL);
1547 fstrcpy( domain->dcname, saf_servername );
1550 SAFE_FREE( saf_servername );
1553 for (retries = 0; retries < 3; retries++) {
1557 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1559 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1560 domain->dcname, domain->name ));
1563 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1564 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1568 status = smbsock_connect(&domain->dcaddr, 0,
1571 if (!NT_STATUS_IS_OK(status)) {
1577 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1579 /* This is the one place where we will
1580 set the global winbindd offline state
1581 to true, if a "WINBINDD_OFFLINE" entry
1582 is found in the winbindd cache. */
1583 set_global_winbindd_state_offline();
1587 new_conn->cli = NULL;
1589 result = cm_prepare_connection(domain, fd, domain->dcname,
1590 &new_conn->cli, &retry);
1596 if (NT_STATUS_IS_OK(result)) {
1598 winbindd_set_locator_kdc_envs(domain);
1600 if (domain->online == False) {
1601 /* We're changing state from offline to online. */
1602 set_global_winbindd_state_online();
1604 set_domain_online(domain);
1607 * Much as I hate global state, this seems to be the point
1608 * where we can be certain that we have a proper connection to
1609 * a DC. wbinfo --dc-info needs that information, store it in
1610 * gencache with a looong timeout. This will need revisiting
1611 * once we start to connect to multiple DCs, wbcDcInfo is
1612 * already prepared for that.
1614 store_current_dc_in_gencache(domain->name, domain->dcname,
1617 /* Ensure we setup the retry handler. */
1618 set_domain_offline(domain);
1621 talloc_destroy(mem_ctx);
1625 /* Close down all open pipes on a connection. */
1627 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1629 /* We're closing down a possibly dead
1630 connection. Don't have impossibly long (10s) timeouts. */
1633 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1636 if (conn->samr_pipe != NULL) {
1637 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1638 rpccli_samr_Close(conn->samr_pipe, talloc_tos(),
1639 &conn->sam_connect_handle);
1641 TALLOC_FREE(conn->samr_pipe);
1642 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1644 cli_set_timeout(conn->cli, 500);
1648 if (conn->lsa_pipe != NULL) {
1649 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1650 rpccli_lsa_Close(conn->lsa_pipe, talloc_tos(),
1653 TALLOC_FREE(conn->lsa_pipe);
1654 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1656 cli_set_timeout(conn->cli, 500);
1660 if (conn->lsa_pipe_tcp != NULL) {
1661 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1662 rpccli_lsa_Close(conn->lsa_pipe, talloc_tos(),
1665 TALLOC_FREE(conn->lsa_pipe_tcp);
1666 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1668 cli_set_timeout(conn->cli, 500);
1672 if (conn->netlogon_pipe != NULL) {
1673 TALLOC_FREE(conn->netlogon_pipe);
1674 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1676 cli_set_timeout(conn->cli, 500);
1681 cli_shutdown(conn->cli);
1687 void close_conns_after_fork(void)
1689 struct winbindd_domain *domain;
1691 for (domain = domain_list(); domain; domain = domain->next) {
1692 struct cli_state *cli = domain->conn.cli;
1695 * first close the low level SMB TCP connection
1696 * so that we don't generate any SMBclose
1697 * requests in invalidate_cm_connection()
1699 if (cli && cli->fd != -1) {
1700 close(domain->conn.cli->fd);
1701 domain->conn.cli->fd = -1;
1704 invalidate_cm_connection(&domain->conn);
1708 static bool connection_ok(struct winbindd_domain *domain)
1712 ok = cli_state_is_connected(domain->conn.cli);
1714 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1715 domain->dcname, domain->name));
1719 if (domain->online == False) {
1720 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1727 /* Initialize a new connection up to the RPC BIND.
1728 Bypass online status check so always does network calls. */
1730 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1734 /* Internal connections never use the network. */
1735 if (domain->internal) {
1736 domain->initialized = True;
1737 return NT_STATUS_OK;
1740 if (!winbindd_can_contact_domain(domain)) {
1741 invalidate_cm_connection(&domain->conn);
1742 domain->initialized = True;
1743 return NT_STATUS_OK;
1746 if (connection_ok(domain)) {
1747 if (!domain->initialized) {
1748 set_dc_type_and_flags(domain);
1750 return NT_STATUS_OK;
1753 invalidate_cm_connection(&domain->conn);
1755 result = cm_open_connection(domain, &domain->conn);
1757 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1758 set_dc_type_and_flags(domain);
1764 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1766 if (domain->internal) {
1767 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1770 if (domain->initialized && !domain->online) {
1771 /* We check for online status elsewhere. */
1772 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1775 return init_dc_connection_network(domain);
1778 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1782 status = init_dc_connection(domain);
1783 if (!NT_STATUS_IS_OK(status)) {
1787 if (!domain->internal && domain->conn.cli == NULL) {
1788 /* happens for trusted domains without inbound trust */
1789 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1792 return NT_STATUS_OK;
1795 /******************************************************************************
1796 Set the trust flags (direction and forest location) for a domain
1797 ******************************************************************************/
1799 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1801 struct winbindd_domain *our_domain;
1802 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1804 struct netr_DomainTrustList trusts;
1806 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1807 NETR_TRUST_FLAG_OUTBOUND |
1808 NETR_TRUST_FLAG_INBOUND);
1809 struct rpc_pipe_client *cli;
1810 TALLOC_CTX *mem_ctx = NULL;
1811 struct dcerpc_binding_handle *b;
1813 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1815 /* Our primary domain doesn't need to worry about trust flags.
1816 Force it to go through the network setup */
1817 if ( domain->primary ) {
1821 our_domain = find_our_domain();
1823 if ( !connection_ok(our_domain) ) {
1824 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1828 /* This won't work unless our domain is AD */
1830 if ( !our_domain->active_directory ) {
1834 /* Use DsEnumerateDomainTrusts to get us the trust direction
1837 result = cm_connect_netlogon(our_domain, &cli);
1839 if (!NT_STATUS_IS_OK(result)) {
1840 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1841 "a connection to %s for PIPE_NETLOGON (%s)\n",
1842 domain->name, nt_errstr(result)));
1846 b = cli->binding_handle;
1848 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1849 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1853 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1858 if (!NT_STATUS_IS_OK(result)) {
1859 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1860 "failed to query trusted domain list: %s\n",
1861 nt_errstr(result)));
1862 talloc_destroy(mem_ctx);
1865 if (!W_ERROR_IS_OK(werr)) {
1866 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1867 "failed to query trusted domain list: %s\n",
1869 talloc_destroy(mem_ctx);
1873 /* Now find the domain name and get the flags */
1875 for ( i=0; i<trusts.count; i++ ) {
1876 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1877 domain->domain_flags = trusts.array[i].trust_flags;
1878 domain->domain_type = trusts.array[i].trust_type;
1879 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1881 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1882 domain->active_directory = True;
1884 /* This flag is only set if the domain is *our*
1885 primary domain and the primary domain is in
1888 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1890 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1891 "native mode.\n", domain->name,
1892 domain->native_mode ? "" : "NOT "));
1894 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1895 "running active directory.\n", domain->name,
1896 domain->active_directory ? "" : "NOT "));
1899 domain->initialized = True;
1905 talloc_destroy( mem_ctx );
1907 return domain->initialized;
1910 /******************************************************************************
1911 We can 'sense' certain things about the DC by it's replies to certain
1914 This tells us if this particular remote server is Active Directory, and if it
1916 ******************************************************************************/
1918 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1922 TALLOC_CTX *mem_ctx = NULL;
1923 struct rpc_pipe_client *cli = NULL;
1924 struct policy_handle pol;
1925 union dssetup_DsRoleInfo info;
1926 union lsa_PolicyInformation *lsa_info = NULL;
1928 if (!connection_ok(domain)) {
1932 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1935 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1939 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1941 result = cli_rpc_pipe_open_noauth(domain->conn.cli,
1942 &ndr_table_dssetup.syntax_id,
1945 if (!NT_STATUS_IS_OK(result)) {
1946 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1947 "PI_DSSETUP on domain %s: (%s)\n",
1948 domain->name, nt_errstr(result)));
1950 /* if this is just a non-AD domain we need to continue
1951 * identifying so that we can in the end return with
1952 * domain->initialized = True - gd */
1957 result = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1958 DS_ROLE_BASIC_INFORMATION,
1963 if (NT_STATUS_IS_OK(result)) {
1964 result = werror_to_ntstatus(werr);
1966 if (!NT_STATUS_IS_OK(result)) {
1967 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1968 "on domain %s failed: (%s)\n",
1969 domain->name, nt_errstr(result)));
1971 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1972 * every opcode on the DSSETUP pipe, continue with
1973 * no_dssetup mode here as well to get domain->initialized
1976 if (NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR) {
1980 TALLOC_FREE(mem_ctx);
1984 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1985 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1986 domain->native_mode = True;
1988 domain->native_mode = False;
1992 result = cli_rpc_pipe_open_noauth(domain->conn.cli,
1993 &ndr_table_lsarpc.syntax_id, &cli);
1995 if (!NT_STATUS_IS_OK(result)) {
1996 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1997 "PI_LSARPC on domain %s: (%s)\n",
1998 domain->name, nt_errstr(result)));
2000 TALLOC_FREE(mem_ctx);
2004 result = rpccli_lsa_open_policy2(cli, mem_ctx, True,
2005 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
2007 if (NT_STATUS_IS_OK(result)) {
2008 /* This particular query is exactly what Win2k clients use
2009 to determine that the DC is active directory */
2010 result = rpccli_lsa_QueryInfoPolicy2(cli, mem_ctx,
2012 LSA_POLICY_INFO_DNS,
2016 if (NT_STATUS_IS_OK(result)) {
2017 domain->active_directory = True;
2019 if (lsa_info->dns.name.string) {
2020 fstrcpy(domain->name, lsa_info->dns.name.string);
2023 if (lsa_info->dns.dns_domain.string) {
2024 fstrcpy(domain->alt_name,
2025 lsa_info->dns.dns_domain.string);
2028 /* See if we can set some domain trust flags about
2031 if (lsa_info->dns.dns_forest.string) {
2032 fstrcpy(domain->forest_name,
2033 lsa_info->dns.dns_forest.string);
2035 if (strequal(domain->forest_name, domain->alt_name)) {
2036 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2040 if (lsa_info->dns.sid) {
2041 sid_copy(&domain->sid, lsa_info->dns.sid);
2044 domain->active_directory = False;
2046 result = rpccli_lsa_open_policy(cli, mem_ctx, True,
2047 SEC_FLAG_MAXIMUM_ALLOWED,
2050 if (!NT_STATUS_IS_OK(result)) {
2054 result = rpccli_lsa_QueryInfoPolicy(cli, mem_ctx,
2056 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2059 if (NT_STATUS_IS_OK(result)) {
2061 if (lsa_info->account_domain.name.string) {
2062 fstrcpy(domain->name,
2063 lsa_info->account_domain.name.string);
2066 if (lsa_info->account_domain.sid) {
2067 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2073 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2074 domain->name, domain->native_mode ? "" : "NOT "));
2076 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2077 domain->name, domain->active_directory ? "" : "NOT "));
2079 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2083 TALLOC_FREE(mem_ctx);
2085 domain->initialized = True;
2088 /**********************************************************************
2089 Set the domain_flags (trust attributes, domain operating modes, etc...
2090 ***********************************************************************/
2092 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2094 /* we always have to contact our primary domain */
2096 if ( domain->primary ) {
2097 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2098 "primary domain\n"));
2099 set_dc_type_and_flags_connect( domain );
2103 /* Use our DC to get the information if possible */
2105 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2106 /* Otherwise, fallback to contacting the
2108 set_dc_type_and_flags_connect( domain );
2116 /**********************************************************************
2117 ***********************************************************************/
2119 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2120 struct netlogon_creds_CredentialState **ppdc)
2122 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2123 struct rpc_pipe_client *netlogon_pipe;
2125 if (lp_client_schannel() == False) {
2126 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2129 result = cm_connect_netlogon(domain, &netlogon_pipe);
2130 if (!NT_STATUS_IS_OK(result)) {
2134 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2137 if (!domain->conn.netlogon_pipe->dc) {
2138 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2141 *ppdc = domain->conn.netlogon_pipe->dc;
2142 return NT_STATUS_OK;
2145 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2146 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2148 struct winbindd_cm_conn *conn;
2149 NTSTATUS status, result;
2150 struct netlogon_creds_CredentialState *p_creds;
2151 char *machine_password = NULL;
2152 char *machine_account = NULL;
2153 char *domain_name = NULL;
2155 if (sid_check_is_domain(&domain->sid)) {
2156 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2159 status = init_dc_connection_rpc(domain);
2160 if (!NT_STATUS_IS_OK(status)) {
2164 conn = &domain->conn;
2166 if (rpccli_is_connected(conn->samr_pipe)) {
2170 TALLOC_FREE(conn->samr_pipe);
2173 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2174 * sign and sealed pipe using the machine account password by
2175 * preference. If we can't - try schannel, if that fails, try
2179 if ((conn->cli->user_name[0] == '\0') ||
2180 (conn->cli->domain[0] == '\0') ||
2181 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2183 status = get_trust_creds(domain, &machine_password,
2184 &machine_account, NULL);
2185 if (!NT_STATUS_IS_OK(status)) {
2186 DEBUG(10, ("cm_connect_sam: No no user available for "
2187 "domain %s, trying schannel\n", conn->cli->domain));
2190 domain_name = domain->name;
2192 machine_password = SMB_STRDUP(conn->cli->password);
2193 machine_account = SMB_STRDUP(conn->cli->user_name);
2194 domain_name = conn->cli->domain;
2197 if (!machine_password || !machine_account) {
2198 status = NT_STATUS_NO_MEMORY;
2202 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2203 authenticated SAMR pipe with sign & seal. */
2204 status = cli_rpc_pipe_open_spnego_ntlmssp(conn->cli,
2205 &ndr_table_samr.syntax_id,
2207 DCERPC_AUTH_LEVEL_PRIVACY,
2213 if (!NT_STATUS_IS_OK(status)) {
2214 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2215 "pipe for domain %s using NTLMSSP "
2216 "authenticated pipe: user %s\\%s. Error was "
2217 "%s\n", domain->name, domain_name,
2218 machine_account, nt_errstr(status)));
2222 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2223 "domain %s using NTLMSSP authenticated "
2224 "pipe: user %s\\%s\n", domain->name,
2225 domain_name, machine_account));
2227 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2228 conn->samr_pipe->desthost,
2229 SEC_FLAG_MAXIMUM_ALLOWED,
2230 &conn->sam_connect_handle,
2232 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2235 if (NT_STATUS_IS_OK(status)) {
2239 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2240 "failed for domain %s, error was %s. Trying schannel\n",
2241 domain->name, nt_errstr(status) ));
2242 TALLOC_FREE(conn->samr_pipe);
2246 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2248 status = cm_get_schannel_creds(domain, &p_creds);
2249 if (!NT_STATUS_IS_OK(status)) {
2250 /* If this call fails - conn->cli can now be NULL ! */
2251 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2252 "for domain %s (error %s), trying anon\n",
2254 nt_errstr(status) ));
2257 status = cli_rpc_pipe_open_schannel_with_key
2258 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2259 DCERPC_AUTH_LEVEL_PRIVACY,
2260 domain->name, &p_creds, &conn->samr_pipe);
2262 if (!NT_STATUS_IS_OK(status)) {
2263 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2264 "domain %s using schannel. Error was %s\n",
2265 domain->name, nt_errstr(status) ));
2268 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2269 "schannel.\n", domain->name ));
2271 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2272 conn->samr_pipe->desthost,
2273 SEC_FLAG_MAXIMUM_ALLOWED,
2274 &conn->sam_connect_handle,
2276 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2279 if (NT_STATUS_IS_OK(status)) {
2282 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2283 "for domain %s, error was %s. Trying anonymous\n",
2284 domain->name, nt_errstr(status) ));
2285 TALLOC_FREE(conn->samr_pipe);
2289 /* Finally fall back to anonymous. */
2290 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2293 if (!NT_STATUS_IS_OK(status)) {
2297 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2298 conn->samr_pipe->desthost,
2299 SEC_FLAG_MAXIMUM_ALLOWED,
2300 &conn->sam_connect_handle,
2302 if (!NT_STATUS_IS_OK(status)) {
2303 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2304 "for domain %s Error was %s\n",
2305 domain->name, nt_errstr(status) ));
2308 if (!NT_STATUS_IS_OK(result)) {
2310 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2311 "for domain %s Error was %s\n",
2312 domain->name, nt_errstr(result)));
2317 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2319 &conn->sam_connect_handle,
2320 SEC_FLAG_MAXIMUM_ALLOWED,
2322 &conn->sam_domain_handle,
2324 if (!NT_STATUS_IS_OK(status)) {
2331 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2333 * if we got access denied, we might just have no access rights
2334 * to talk to the remote samr server server (e.g. when we are a
2335 * PDC and we are connecting a w2k8 pdc via an interdomain
2336 * trust). In that case do not invalidate the whole connection
2339 TALLOC_FREE(conn->samr_pipe);
2340 ZERO_STRUCT(conn->sam_domain_handle);
2342 } else if (!NT_STATUS_IS_OK(status)) {
2343 invalidate_cm_connection(conn);
2347 *cli = conn->samr_pipe;
2348 *sam_handle = conn->sam_domain_handle;
2349 SAFE_FREE(machine_password);
2350 SAFE_FREE(machine_account);
2354 /**********************************************************************
2355 open an schanneld ncacn_ip_tcp connection to LSA
2356 ***********************************************************************/
2358 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2359 TALLOC_CTX *mem_ctx,
2360 struct rpc_pipe_client **cli)
2362 struct winbindd_cm_conn *conn;
2363 struct netlogon_creds_CredentialState *creds;
2366 DEBUG(10,("cm_connect_lsa_tcp\n"));
2368 status = init_dc_connection_rpc(domain);
2369 if (!NT_STATUS_IS_OK(status)) {
2373 conn = &domain->conn;
2375 if (conn->lsa_pipe_tcp &&
2376 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2377 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2378 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2382 TALLOC_FREE(conn->lsa_pipe_tcp);
2384 status = cm_get_schannel_creds(domain, &creds);
2385 if (!NT_STATUS_IS_OK(status)) {
2389 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2390 &ndr_table_lsarpc.syntax_id,
2392 DCERPC_AUTH_LEVEL_PRIVACY,
2395 &conn->lsa_pipe_tcp);
2396 if (!NT_STATUS_IS_OK(status)) {
2397 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2398 nt_errstr(status)));
2403 if (!NT_STATUS_IS_OK(status)) {
2404 TALLOC_FREE(conn->lsa_pipe_tcp);
2408 *cli = conn->lsa_pipe_tcp;
2413 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2414 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2416 struct winbindd_cm_conn *conn;
2417 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2418 struct netlogon_creds_CredentialState *p_creds;
2420 result = init_dc_connection_rpc(domain);
2421 if (!NT_STATUS_IS_OK(result))
2424 conn = &domain->conn;
2426 if (rpccli_is_connected(conn->lsa_pipe)) {
2430 TALLOC_FREE(conn->lsa_pipe);
2432 if ((conn->cli->user_name[0] == '\0') ||
2433 (conn->cli->domain[0] == '\0') ||
2434 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2435 DEBUG(10, ("cm_connect_lsa: No no user available for "
2436 "domain %s, trying schannel\n", conn->cli->domain));
2440 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2441 * authenticated LSA pipe with sign & seal. */
2442 result = cli_rpc_pipe_open_spnego_ntlmssp
2443 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2444 DCERPC_AUTH_LEVEL_PRIVACY,
2445 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2448 if (!NT_STATUS_IS_OK(result)) {
2449 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2450 "domain %s using NTLMSSP authenticated pipe: user "
2451 "%s\\%s. Error was %s. Trying schannel.\n",
2452 domain->name, conn->cli->domain,
2453 conn->cli->user_name, nt_errstr(result)));
2457 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2458 "NTLMSSP authenticated pipe: user %s\\%s\n",
2459 domain->name, conn->cli->domain, conn->cli->user_name ));
2461 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2462 SEC_FLAG_MAXIMUM_ALLOWED,
2464 if (NT_STATUS_IS_OK(result)) {
2468 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2471 TALLOC_FREE(conn->lsa_pipe);
2475 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2477 result = cm_get_schannel_creds(domain, &p_creds);
2478 if (!NT_STATUS_IS_OK(result)) {
2479 /* If this call fails - conn->cli can now be NULL ! */
2480 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2481 "for domain %s (error %s), trying anon\n",
2483 nt_errstr(result) ));
2486 result = cli_rpc_pipe_open_schannel_with_key
2487 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2488 DCERPC_AUTH_LEVEL_PRIVACY,
2489 domain->name, &p_creds, &conn->lsa_pipe);
2491 if (!NT_STATUS_IS_OK(result)) {
2492 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2493 "domain %s using schannel. Error was %s\n",
2494 domain->name, nt_errstr(result) ));
2497 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2498 "schannel.\n", domain->name ));
2500 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2501 SEC_FLAG_MAXIMUM_ALLOWED,
2503 if (NT_STATUS_IS_OK(result)) {
2507 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2510 TALLOC_FREE(conn->lsa_pipe);
2514 result = cli_rpc_pipe_open_noauth(conn->cli,
2515 &ndr_table_lsarpc.syntax_id,
2517 if (!NT_STATUS_IS_OK(result)) {
2518 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2522 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2523 SEC_FLAG_MAXIMUM_ALLOWED,
2526 if (!NT_STATUS_IS_OK(result)) {
2527 invalidate_cm_connection(conn);
2531 *cli = conn->lsa_pipe;
2532 *lsa_policy = conn->lsa_policy;
2536 /****************************************************************************
2537 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2538 session key stored in conn->netlogon_pipe->dc->sess_key.
2539 ****************************************************************************/
2541 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2542 struct rpc_pipe_client **cli)
2544 struct winbindd_cm_conn *conn;
2547 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2549 enum netr_SchannelType sec_chan_type;
2550 const char *account_name;
2551 struct rpc_pipe_client *netlogon_pipe = NULL;
2555 result = init_dc_connection_rpc(domain);
2556 if (!NT_STATUS_IS_OK(result)) {
2560 conn = &domain->conn;
2562 if (rpccli_is_connected(conn->netlogon_pipe)) {
2563 *cli = conn->netlogon_pipe;
2564 return NT_STATUS_OK;
2567 TALLOC_FREE(conn->netlogon_pipe);
2569 result = cli_rpc_pipe_open_noauth(conn->cli,
2570 &ndr_table_netlogon.syntax_id,
2572 if (!NT_STATUS_IS_OK(result)) {
2576 if ((!IS_DC) && (!domain->primary)) {
2577 /* Clear the schannel request bit and drop down */
2578 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2582 if (lp_client_schannel() != False) {
2583 neg_flags |= NETLOGON_NEG_SCHANNEL;
2586 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2589 TALLOC_FREE(netlogon_pipe);
2590 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2593 result = rpccli_netlogon_setup_creds(
2595 domain->dcname, /* server name. */
2596 domain->name, /* domain name */
2597 global_myname(), /* client name */
2598 account_name, /* machine account */
2599 mach_pwd, /* machine password */
2600 sec_chan_type, /* from get_trust_pw */
2603 if (!NT_STATUS_IS_OK(result)) {
2604 TALLOC_FREE(netlogon_pipe);
2608 if ((lp_client_schannel() == True) &&
2609 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2610 DEBUG(3, ("Server did not offer schannel\n"));
2611 TALLOC_FREE(netlogon_pipe);
2612 return NT_STATUS_ACCESS_DENIED;
2616 if ((lp_client_schannel() == False) ||
2617 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2619 * NetSamLogonEx only works for schannel
2621 domain->can_do_samlogon_ex = False;
2623 /* We're done - just keep the existing connection to NETLOGON
2625 conn->netlogon_pipe = netlogon_pipe;
2626 *cli = conn->netlogon_pipe;
2627 return NT_STATUS_OK;
2630 /* Using the credentials from the first pipe, open a signed and sealed
2631 second netlogon pipe. The session key is stored in the schannel
2632 part of the new pipe auth struct.
2635 result = cli_rpc_pipe_open_schannel_with_key(
2636 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2637 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2638 &conn->netlogon_pipe);
2640 /* We can now close the initial netlogon pipe. */
2641 TALLOC_FREE(netlogon_pipe);
2643 if (!NT_STATUS_IS_OK(result)) {
2644 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2645 "was %s\n", nt_errstr(result)));
2647 invalidate_cm_connection(conn);
2652 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2653 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2654 * supported). We used to only try SamLogonEx for AD, but
2655 * Samba DCs can also do it. And because we don't distinguish
2656 * between Samba and NT4, always try it once.
2658 domain->can_do_samlogon_ex = true;
2660 *cli = conn->netlogon_pipe;
2661 return NT_STATUS_OK;
2664 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2667 struct server_id server_id,
2670 struct winbindd_domain *domain;
2673 || (data->data == NULL)
2674 || (data->length == 0)
2675 || (data->data[data->length-1] != '\0')
2676 || !is_ipaddress((char *)data->data)) {
2677 DEBUG(1, ("invalid msg_ip_dropped message\n"));
2680 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2681 char sockaddr[INET6_ADDRSTRLEN];
2682 if (domain->conn.cli == NULL) {
2685 if (domain->conn.cli->fd == -1) {
2688 client_socket_addr(domain->conn.cli->fd, sockaddr,
2690 if (strequal(sockaddr, (char *)data->data)) {
2691 close(domain->conn.cli->fd);
2692 domain->conn.cli->fd = -1;