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_pipe.h"
66 #include "rpc_client/cli_netlogon.h"
67 #include "../librpc/gen_ndr/ndr_samr_c.h"
68 #include "../librpc/gen_ndr/ndr_lsa_c.h"
69 #include "rpc_client/cli_lsarpc.h"
70 #include "../librpc/gen_ndr/ndr_dssetup_c.h"
71 #include "libads/sitename_cache.h"
72 #include "libsmb/libsmb.h"
73 #include "libsmb/clidgram.h"
76 #include "../libcli/security/security.h"
81 #define DBGC_CLASS DBGC_WINBIND
85 struct sockaddr_storage ss;
88 extern struct winbindd_methods reconnect_methods;
89 extern bool override_logfile;
91 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
92 static void set_dc_type_and_flags( struct winbindd_domain *domain );
93 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
94 struct dc_name_ip **dcs, int *num_dcs);
96 /****************************************************************
97 Child failed to find DC's. Reschedule check.
98 ****************************************************************/
100 static void msg_failed_to_go_online(struct messaging_context *msg,
103 struct server_id server_id,
106 struct winbindd_domain *domain;
107 const char *domainname = (const char *)data->data;
109 if (data->data == NULL || data->length == 0) {
113 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
115 for (domain = domain_list(); domain; domain = domain->next) {
116 if (domain->internal) {
120 if (strequal(domain->name, domainname)) {
121 if (domain->online) {
122 /* We're already online, ignore. */
123 DEBUG(5,("msg_fail_to_go_online: domain %s "
124 "already online.\n", domainname));
128 /* Reschedule the online check. */
129 set_domain_offline(domain);
135 /****************************************************************
136 Actually cause a reconnect from a message.
137 ****************************************************************/
139 static void msg_try_to_go_online(struct messaging_context *msg,
142 struct server_id server_id,
145 struct winbindd_domain *domain;
146 const char *domainname = (const char *)data->data;
148 if (data->data == NULL || data->length == 0) {
152 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
154 for (domain = domain_list(); domain; domain = domain->next) {
155 if (domain->internal) {
159 if (strequal(domain->name, domainname)) {
161 if (domain->online) {
162 /* We're already online, ignore. */
163 DEBUG(5,("msg_try_to_go_online: domain %s "
164 "already online.\n", domainname));
168 /* This call takes care of setting the online
169 flag to true if we connected, or re-adding
170 the offline handler if false. Bypasses online
171 check so always does network calls. */
173 init_dc_connection_network(domain);
179 /****************************************************************
180 Fork a child to try and contact a DC. Do this as contacting a
181 DC requires blocking lookups and we don't want to block our
183 ****************************************************************/
185 static bool fork_child_dc_connect(struct winbindd_domain *domain)
187 struct dc_name_ip *dcs = NULL;
189 TALLOC_CTX *mem_ctx = NULL;
190 pid_t parent_pid = sys_getpid();
194 if (domain->dc_probe_pid != (pid_t)-1) {
196 * We might already have a DC probe
197 * child working, check.
199 if (process_exists_by_pid(domain->dc_probe_pid)) {
200 DEBUG(10,("fork_child_dc_connect: pid %u already "
201 "checking for DC's.\n",
202 (unsigned int)domain->dc_probe_pid));
205 domain->dc_probe_pid = (pid_t)-1;
208 domain->dc_probe_pid = sys_fork();
210 if (domain->dc_probe_pid == (pid_t)-1) {
211 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
215 if (domain->dc_probe_pid != (pid_t)0) {
217 messaging_register(winbind_messaging_context(), NULL,
218 MSG_WINBIND_TRY_TO_GO_ONLINE,
219 msg_try_to_go_online);
220 messaging_register(winbind_messaging_context(), NULL,
221 MSG_WINBIND_FAILED_TO_GO_ONLINE,
222 msg_failed_to_go_online);
228 /* Leave messages blocked - we will never process one. */
230 if (!override_logfile) {
231 if (asprintf(&lfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
232 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
237 status = winbindd_reinit_after_fork(NULL, lfile);
238 if (!NT_STATUS_IS_OK(status)) {
239 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
241 messaging_send_buf(winbind_messaging_context(),
242 pid_to_procid(parent_pid),
243 MSG_WINBIND_FAILED_TO_GO_ONLINE,
244 (uint8 *)domain->name,
245 strlen(domain->name)+1);
250 mem_ctx = talloc_init("fork_child_dc_connect");
252 DEBUG(0,("talloc_init failed.\n"));
253 messaging_send_buf(winbind_messaging_context(),
254 pid_to_procid(parent_pid),
255 MSG_WINBIND_FAILED_TO_GO_ONLINE,
256 (uint8 *)domain->name,
257 strlen(domain->name)+1);
261 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
262 /* Still offline ? Can't find DC's. */
263 messaging_send_buf(winbind_messaging_context(),
264 pid_to_procid(parent_pid),
265 MSG_WINBIND_FAILED_TO_GO_ONLINE,
266 (uint8 *)domain->name,
267 strlen(domain->name)+1);
271 /* We got a DC. Send a message to our parent to get it to
272 try and do the same. */
274 messaging_send_buf(winbind_messaging_context(),
275 pid_to_procid(parent_pid),
276 MSG_WINBIND_TRY_TO_GO_ONLINE,
277 (uint8 *)domain->name,
278 strlen(domain->name)+1);
282 /****************************************************************
283 Handler triggered if we're offline to try and detect a DC.
284 ****************************************************************/
286 static void check_domain_online_handler(struct event_context *ctx,
287 struct timed_event *te,
291 struct winbindd_domain *domain =
292 (struct winbindd_domain *)private_data;
294 DEBUG(10,("check_domain_online_handler: called for domain "
295 "%s (online = %s)\n", domain->name,
296 domain->online ? "True" : "False" ));
298 TALLOC_FREE(domain->check_online_event);
300 /* Are we still in "startup" mode ? */
302 if (domain->startup && (time_mono(NULL) > domain->startup_time + 30)) {
303 /* No longer in "startup" mode. */
304 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
306 domain->startup = False;
309 /* We've been told to stay offline, so stay
312 if (get_global_winbindd_state_offline()) {
313 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
318 /* Fork a child to test if it can contact a DC.
319 If it can then send ourselves a message to
320 cause a reconnect. */
322 fork_child_dc_connect(domain);
325 /****************************************************************
326 If we're still offline setup the timeout check.
327 ****************************************************************/
329 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
331 int wbr = lp_winbind_reconnect_delay();
333 if (domain->startup) {
334 domain->check_online_timeout = 10;
335 } else if (domain->check_online_timeout < wbr) {
336 domain->check_online_timeout = wbr;
340 /****************************************************************
341 Set domain offline and also add handler to put us back online
343 ****************************************************************/
345 void set_domain_offline(struct winbindd_domain *domain)
347 DEBUG(10,("set_domain_offline: called for domain %s\n",
350 TALLOC_FREE(domain->check_online_event);
352 if (domain->internal) {
353 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
358 domain->online = False;
360 /* Offline domains are always initialized. They're
361 re-initialized when they go back online. */
363 domain->initialized = True;
365 /* We only add the timeout handler that checks and
366 allows us to go back online when we've not
367 been told to remain offline. */
369 if (get_global_winbindd_state_offline()) {
370 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
375 /* If we're in startup mode, check again in 10 seconds, not in
376 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
378 calc_new_online_timeout_check(domain);
380 domain->check_online_event = event_add_timed(winbind_event_context(),
382 timeval_current_ofs(domain->check_online_timeout,0),
383 check_domain_online_handler,
386 /* The above *has* to succeed for winbindd to work. */
387 if (!domain->check_online_event) {
388 smb_panic("set_domain_offline: failed to add online handler");
391 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
394 /* Send an offline message to the idmap child when our
395 primary domain goes offline */
397 if ( domain->primary ) {
398 struct winbindd_child *idmap = idmap_child();
400 if ( idmap->pid != 0 ) {
401 messaging_send_buf(winbind_messaging_context(),
402 pid_to_procid(idmap->pid),
404 (uint8 *)domain->name,
405 strlen(domain->name)+1);
412 /****************************************************************
413 Set domain online - if allowed.
414 ****************************************************************/
416 static void set_domain_online(struct winbindd_domain *domain)
418 DEBUG(10,("set_domain_online: called for domain %s\n",
421 if (domain->internal) {
422 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
427 if (get_global_winbindd_state_offline()) {
428 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
433 winbindd_set_locator_kdc_envs(domain);
435 /* If we are waiting to get a krb5 ticket, trigger immediately. */
436 ccache_regain_all_now();
438 /* Ok, we're out of any startup mode now... */
439 domain->startup = False;
441 if (domain->online == False) {
442 /* We were offline - now we're online. We default to
443 using the MS-RPC backend if we started offline,
444 and if we're going online for the first time we
445 should really re-initialize the backends and the
446 checks to see if we're talking to an AD or NT domain.
449 domain->initialized = False;
451 /* 'reconnect_methods' is the MS-RPC backend. */
452 if (domain->backend == &reconnect_methods) {
453 domain->backend = NULL;
457 /* Ensure we have no online timeout checks. */
458 domain->check_online_timeout = 0;
459 TALLOC_FREE(domain->check_online_event);
461 /* Ensure we ignore any pending child messages. */
462 messaging_deregister(winbind_messaging_context(),
463 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
464 messaging_deregister(winbind_messaging_context(),
465 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
467 domain->online = True;
469 /* Send an online message to the idmap child when our
470 primary domain comes online */
472 if ( domain->primary ) {
473 struct winbindd_child *idmap = idmap_child();
475 if ( idmap->pid != 0 ) {
476 messaging_send_buf(winbind_messaging_context(),
477 pid_to_procid(idmap->pid),
479 (uint8 *)domain->name,
480 strlen(domain->name)+1);
487 /****************************************************************
488 Requested to set a domain online.
489 ****************************************************************/
491 void set_domain_online_request(struct winbindd_domain *domain)
495 DEBUG(10,("set_domain_online_request: called for domain %s\n",
498 if (get_global_winbindd_state_offline()) {
499 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
504 if (domain->internal) {
505 DEBUG(10, ("set_domain_online_request: Internal domains are "
510 /* We've been told it's safe to go online and
511 try and connect to a DC. But I don't believe it
512 because network manager seems to lie.
513 Wait at least 5 seconds. Heuristics suck... */
518 /* Go into "startup" mode again. */
519 domain->startup_time = time_mono(NULL);
520 domain->startup = True;
524 if (!domain->check_online_event) {
525 /* If we've come from being globally offline we
526 don't have a check online event handler set.
527 We need to add one now we're trying to go
530 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
534 TALLOC_FREE(domain->check_online_event);
536 domain->check_online_event = event_add_timed(winbind_event_context(),
539 check_domain_online_handler,
542 /* The above *has* to succeed for winbindd to work. */
543 if (!domain->check_online_event) {
544 smb_panic("set_domain_online_request: failed to add online handler");
548 /****************************************************************
549 Add -ve connection cache entries for domain and realm.
550 ****************************************************************/
552 static void winbind_add_failed_connection_entry(
553 const struct winbindd_domain *domain,
557 add_failed_connection_entry(domain->name, server, result);
558 /* If this was the saf name for the last thing we talked to,
560 saf_delete(domain->name);
561 if (*domain->alt_name) {
562 add_failed_connection_entry(domain->alt_name, server, result);
563 saf_delete(domain->alt_name);
565 winbindd_unset_locator_kdc_env(domain);
568 /* Choose between anonymous or authenticated connections. We need to use
569 an authenticated connection if DCs have the RestrictAnonymous registry
570 entry set > 0, or the "Additional restrictions for anonymous
571 connections" set in the win2k Local Security Policy.
573 Caller to free() result in domain, username, password
576 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
578 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
579 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
580 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
582 if (*username && **username) {
584 if (!*domain || !**domain)
585 *domain = smb_xstrdup(lp_workgroup());
587 if (!*password || !**password)
588 *password = smb_xstrdup("");
590 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
591 *domain, *username));
594 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
595 *username = smb_xstrdup("");
596 *domain = smb_xstrdup("");
597 *password = smb_xstrdup("");
601 static bool get_dc_name_via_netlogon(struct winbindd_domain *domain,
603 struct sockaddr_storage *dc_ss)
605 struct winbindd_domain *our_domain = NULL;
606 struct rpc_pipe_client *netlogon_pipe = NULL;
610 unsigned int orig_timeout;
611 const char *tmp = NULL;
613 struct dcerpc_binding_handle *b;
615 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
622 if (domain->primary) {
626 our_domain = find_our_domain();
628 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
632 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
633 if (!NT_STATUS_IS_OK(result)) {
634 talloc_destroy(mem_ctx);
638 b = netlogon_pipe->binding_handle;
640 /* This call can take a long time - allow the server to time out.
641 35 seconds should do it. */
643 orig_timeout = rpccli_set_timeout(netlogon_pipe, 35000);
645 if (our_domain->active_directory) {
646 struct netr_DsRGetDCNameInfo *domain_info = NULL;
648 result = dcerpc_netr_DsRGetDCName(b,
657 if (NT_STATUS_IS_OK(result) && W_ERROR_IS_OK(werr)) {
659 mem_ctx, domain_info->dc_unc);
661 DEBUG(0, ("talloc_strdup failed\n"));
662 talloc_destroy(mem_ctx);
665 if (strlen(domain->alt_name) == 0) {
666 fstrcpy(domain->alt_name,
667 domain_info->domain_name);
669 if (strlen(domain->forest_name) == 0) {
670 fstrcpy(domain->forest_name,
671 domain_info->forest_name);
675 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
682 /* And restore our original timeout. */
683 rpccli_set_timeout(netlogon_pipe, orig_timeout);
685 if (!NT_STATUS_IS_OK(result)) {
686 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
688 talloc_destroy(mem_ctx);
692 if (!W_ERROR_IS_OK(werr)) {
693 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
695 talloc_destroy(mem_ctx);
699 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
700 p = strip_hostname(tmp);
704 talloc_destroy(mem_ctx);
706 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
708 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
716 * Helper function to assemble trust password and account name
718 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
719 char **machine_password,
720 char **machine_account,
721 char **machine_krb5_principal)
723 const char *account_name;
724 const char *name = NULL;
726 /* If we are a DC and this is not our own domain */
731 struct winbindd_domain *our_domain = find_our_domain();
734 return NT_STATUS_INVALID_SERVER_STATE;
736 name = our_domain->name;
739 if (!get_trust_pw_clear(name, machine_password,
740 &account_name, NULL))
742 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
745 if ((machine_account != NULL) &&
746 (asprintf(machine_account, "%s$", account_name) == -1))
748 return NT_STATUS_NO_MEMORY;
751 /* For now assume our machine account only exists in our domain */
753 if (machine_krb5_principal != NULL)
755 struct winbindd_domain *our_domain = find_our_domain();
758 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
761 if (asprintf(machine_krb5_principal, "%s$@%s",
762 account_name, our_domain->alt_name) == -1)
764 return NT_STATUS_NO_MEMORY;
767 strupper_m(*machine_krb5_principal);
773 /************************************************************************
774 Given a fd with a just-connected TCP connection to a DC, open a connection
776 ************************************************************************/
778 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
780 const char *controller,
781 struct cli_state **cli,
784 char *machine_password = NULL;
785 char *machine_krb5_principal = NULL;
786 char *machine_account = NULL;
787 char *ipc_username = NULL;
788 char *ipc_domain = NULL;
789 char *ipc_password = NULL;
791 struct named_mutex *mutex;
793 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
795 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
796 controller, domain->name ));
800 mutex = grab_named_mutex(talloc_tos(), controller,
801 WINBIND_SERVER_MUTEX_WAIT_TIME);
803 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
805 result = NT_STATUS_POSSIBLE_DEADLOCK;
809 *cli = cli_state_create(NULL, sockfd, controller, Undefined);
811 DEBUG(1, ("Could not cli_initialize\n"));
812 result = NT_STATUS_NO_MEMORY;
816 (*cli)->timeout = 10000; /* 10 seconds */
818 (*cli)->use_kerberos = True;
820 result = cli_negprot(*cli);
822 if (!NT_STATUS_IS_OK(result)) {
823 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
827 if (!is_dc_trusted_domain_situation(domain->name) &&
828 (*cli)->protocol >= PROTOCOL_NT1 &&
829 (*cli)->capabilities & CAP_EXTENDED_SECURITY)
831 ADS_STATUS ads_status;
833 result = get_trust_creds(domain, &machine_password,
835 &machine_krb5_principal);
836 if (!NT_STATUS_IS_OK(result)) {
840 if (lp_security() == SEC_ADS) {
842 /* Try a krb5 session */
844 (*cli)->use_kerberos = True;
845 DEBUG(5, ("connecting to %s from %s with kerberos principal "
846 "[%s] and realm [%s]\n", controller, lp_netbios_name(),
847 machine_krb5_principal, domain->alt_name));
849 winbindd_set_locator_kdc_envs(domain);
851 ads_status = cli_session_setup_spnego(*cli,
852 machine_krb5_principal,
857 if (!ADS_ERR_OK(ads_status)) {
858 DEBUG(4,("failed kerberos session setup with %s\n",
859 ads_errstr(ads_status)));
862 result = ads_ntstatus(ads_status);
863 if (NT_STATUS_IS_OK(result)) {
864 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
865 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
866 if (!NT_STATUS_IS_OK(result)) {
869 goto session_setup_done;
873 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
874 (*cli)->use_kerberos = False;
876 DEBUG(5, ("connecting to %s from %s with username "
877 "[%s]\\[%s]\n", controller, lp_netbios_name(),
878 lp_workgroup(), machine_account));
880 ads_status = cli_session_setup_spnego(*cli,
885 if (!ADS_ERR_OK(ads_status)) {
886 DEBUG(4, ("authenticated session setup failed with %s\n",
887 ads_errstr(ads_status)));
890 result = ads_ntstatus(ads_status);
891 if (NT_STATUS_IS_OK(result)) {
892 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
893 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
894 if (!NT_STATUS_IS_OK(result)) {
897 goto session_setup_done;
901 /* Fall back to non-kerberos session setup with auth_user */
903 (*cli)->use_kerberos = False;
905 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
907 if ((((*cli)->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
908 (strlen(ipc_username) > 0)) {
910 /* Only try authenticated if we have a username */
912 DEBUG(5, ("connecting to %s from %s with username "
913 "[%s]\\[%s]\n", controller, lp_netbios_name(),
914 ipc_domain, ipc_username));
916 if (NT_STATUS_IS_OK(cli_session_setup(
918 ipc_password, strlen(ipc_password)+1,
919 ipc_password, strlen(ipc_password)+1,
921 /* Successful logon with given username. */
922 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
923 if (!NT_STATUS_IS_OK(result)) {
926 goto session_setup_done;
928 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
929 ipc_domain, ipc_username ));
935 /* Fall back to anonymous connection, this might fail later */
936 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
937 "connection for DC %s\n",
940 if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
942 DEBUG(5, ("Connected anonymously\n"));
943 result = cli_init_creds(*cli, "", "", "");
944 if (!NT_STATUS_IS_OK(result)) {
947 goto session_setup_done;
950 result = cli_nt_error(*cli);
952 if (NT_STATUS_IS_OK(result))
953 result = NT_STATUS_UNSUCCESSFUL;
955 /* We can't session setup */
961 /* cache the server name for later connections */
963 saf_store(domain->name, controller);
964 if (domain->alt_name && (*cli)->use_kerberos) {
965 saf_store(domain->alt_name, controller);
968 winbindd_set_locator_kdc_envs(domain);
970 result = cli_tcon_andx(*cli, "IPC$", "IPC", "", 0);
972 if (!NT_STATUS_IS_OK(result)) {
973 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
980 /* set the domain if empty; needed for schannel connections */
981 if ( !(*cli)->domain[0] ) {
982 result = cli_set_domain((*cli), domain->name);
983 if (!NT_STATUS_IS_OK(result)) {
988 result = NT_STATUS_OK;
992 SAFE_FREE(machine_account);
993 SAFE_FREE(machine_password);
994 SAFE_FREE(machine_krb5_principal);
995 SAFE_FREE(ipc_username);
996 SAFE_FREE(ipc_domain);
997 SAFE_FREE(ipc_password);
999 if (!NT_STATUS_IS_OK(result)) {
1000 winbind_add_failed_connection_entry(domain, controller, result);
1001 if ((*cli) != NULL) {
1010 /*******************************************************************
1011 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1014 Keeps the list unique by not adding duplicate entries.
1016 @param[in] mem_ctx talloc memory context to allocate from
1017 @param[in] domain_name domain of the DC
1018 @param[in] dcname name of the DC to add to the list
1019 @param[in] pss Internet address and port pair to add to the list
1020 @param[in,out] dcs array of dc_name_ip structures to add to
1021 @param[in,out] num_dcs number of dcs returned in the dcs array
1022 @return true if the list was added to, false otherwise
1023 *******************************************************************/
1025 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1026 const char *dcname, struct sockaddr_storage *pss,
1027 struct dc_name_ip **dcs, int *num)
1031 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1032 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1036 /* Make sure there's no duplicates in the list */
1037 for (i=0; i<*num; i++)
1039 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1040 (struct sockaddr *)(void *)pss))
1043 *dcs = talloc_realloc(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1048 fstrcpy((*dcs)[*num].name, dcname);
1049 (*dcs)[*num].ss = *pss;
1054 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1055 struct sockaddr_storage *pss, uint16 port,
1056 struct sockaddr_storage **addrs, int *num)
1058 *addrs = talloc_realloc(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1060 if (*addrs == NULL) {
1065 (*addrs)[*num] = *pss;
1066 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1072 /*******************************************************************
1073 convert an ip to a name
1074 *******************************************************************/
1076 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1077 const struct winbindd_domain *domain,
1078 struct sockaddr_storage *pss,
1081 struct ip_service ip_list;
1082 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1084 const char *dc_name;
1090 /* For active directory servers, try to get the ldap server name.
1091 None of these failures should be considered critical for now */
1093 if (lp_security() == SEC_ADS) {
1095 ADS_STATUS ads_status;
1096 char addr[INET6_ADDRSTRLEN];
1098 print_sockaddr(addr, sizeof(addr), pss);
1100 ads = ads_init(domain->alt_name, domain->name, addr);
1101 ads->auth.flags |= ADS_AUTH_NO_BIND;
1103 ads_status = ads_connect(ads);
1104 if (ADS_ERR_OK(ads_status)) {
1105 /* We got a cldap packet. */
1106 fstrcpy(name, ads->config.ldap_server_name);
1107 namecache_store(name, 0x20, 1, &ip_list);
1109 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1111 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1112 if (ads_closest_dc(ads)) {
1113 char *sitename = sitename_fetch(ads->config.realm);
1115 /* We're going to use this KDC for this realm/domain.
1116 If we are using sites, then force the krb5 libs
1119 create_local_private_krb5_conf_for_domain(domain->alt_name,
1125 SAFE_FREE(sitename);
1127 /* use an off site KDC */
1128 create_local_private_krb5_conf_for_domain(domain->alt_name,
1134 winbindd_set_locator_kdc_envs(domain);
1136 /* Ensure we contact this DC also. */
1137 saf_store( domain->name, name);
1138 saf_store( domain->alt_name, name);
1141 ads_destroy( &ads );
1145 ads_destroy( &ads );
1149 status = nbt_getdc(winbind_messaging_context(), pss, domain->name,
1150 &domain->sid, nt_version, mem_ctx, &nt_version,
1152 if (NT_STATUS_IS_OK(status)) {
1153 fstrcpy(name, dc_name);
1154 namecache_store(name, 0x20, 1, &ip_list);
1158 /* try node status request */
1160 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1161 namecache_store(name, 0x20, 1, &ip_list);
1167 /*******************************************************************
1168 Retrieve a list of IP addresses for domain controllers.
1170 The array is sorted in the preferred connection order.
1172 @param[in] mem_ctx talloc memory context to allocate from
1173 @param[in] domain domain to retrieve DCs for
1174 @param[out] dcs array of dcs that will be returned
1175 @param[out] num_dcs number of dcs returned in the dcs array
1177 *******************************************************************/
1179 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1180 struct dc_name_ip **dcs, int *num_dcs)
1183 struct sockaddr_storage ss;
1184 struct ip_service *ip_list = NULL;
1185 int iplist_size = 0;
1188 enum security_types sec = (enum security_types)lp_security();
1190 is_our_domain = strequal(domain->name, lp_workgroup());
1192 /* If not our domain, get the preferred DC, by asking our primary DC */
1194 && get_dc_name_via_netlogon(domain, dcname, &ss)
1195 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1198 char addr[INET6_ADDRSTRLEN];
1199 print_sockaddr(addr, sizeof(addr), &ss);
1200 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1205 if (sec == SEC_ADS) {
1206 char *sitename = NULL;
1208 /* We need to make sure we know the local site before
1209 doing any DNS queries, as this will restrict the
1210 get_sorted_dc_list() call below to only fetching
1211 DNS records for the correct site. */
1213 /* Find any DC to get the site record.
1214 We deliberately don't care about the
1217 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1219 sitename = sitename_fetch(domain->alt_name);
1222 /* Do the site-specific AD dns lookup first. */
1223 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1224 &iplist_size, True);
1226 /* Add ips to the DC array. We don't look up the name
1227 of the DC in this function, but we fill in the char*
1228 of the ip now to make the failed connection cache
1230 for ( i=0; i<iplist_size; i++ ) {
1231 char addr[INET6_ADDRSTRLEN];
1232 print_sockaddr(addr, sizeof(addr),
1234 add_one_dc_unique(mem_ctx,
1243 SAFE_FREE(sitename);
1247 /* Now we add DCs from the main AD DNS lookup. */
1248 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1249 &iplist_size, True);
1251 for ( i=0; i<iplist_size; i++ ) {
1252 char addr[INET6_ADDRSTRLEN];
1253 print_sockaddr(addr, sizeof(addr),
1255 add_one_dc_unique(mem_ctx,
1267 /* Try standard netbios queries if no ADS */
1268 if (*num_dcs == 0) {
1269 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1272 for ( i=0; i<iplist_size; i++ ) {
1273 char addr[INET6_ADDRSTRLEN];
1274 print_sockaddr(addr, sizeof(addr),
1276 add_one_dc_unique(mem_ctx,
1291 /*******************************************************************
1292 Find and make a connection to a DC in the given domain.
1294 @param[in] mem_ctx talloc memory context to allocate from
1295 @param[in] domain domain to find a dc in
1296 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1297 @param[out] pss DC Internet address and port
1298 @param[out] fd fd of the open socket connected to the newly found dc
1299 @return true when a DC connection is made, false otherwise
1300 *******************************************************************/
1302 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1303 struct winbindd_domain *domain,
1304 fstring dcname, struct sockaddr_storage *pss, int *fd)
1306 struct dc_name_ip *dcs = NULL;
1309 const char **dcnames = NULL;
1310 int num_dcnames = 0;
1312 struct sockaddr_storage *addrs = NULL;
1323 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1326 for (i=0; i<num_dcs; i++) {
1328 if (!add_string_to_array(mem_ctx, dcs[i].name,
1329 &dcnames, &num_dcnames)) {
1332 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1333 &addrs, &num_addrs)) {
1338 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1341 if ((addrs == NULL) || (dcnames == NULL))
1344 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1345 num_addrs, 0, 10, fd, &fd_index, NULL);
1346 if (!NT_STATUS_IS_OK(status)) {
1347 for (i=0; i<num_dcs; i++) {
1348 char ab[INET6_ADDRSTRLEN];
1349 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1350 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1351 "domain %s address %s. Error was %s\n",
1352 domain->name, ab, nt_errstr(status) ));
1353 winbind_add_failed_connection_entry(domain,
1354 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1359 *pss = addrs[fd_index];
1361 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1362 /* Ok, we've got a name for the DC */
1363 fstrcpy(dcname, dcnames[fd_index]);
1367 /* Try to figure out the name */
1368 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1372 /* We can not continue without the DC's name */
1373 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1374 NT_STATUS_UNSUCCESSFUL);
1376 /* Throw away all arrays as we're doing this again. */
1380 TALLOC_FREE(dcnames);
1392 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1394 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1398 static void store_current_dc_in_gencache(const char *domain_name,
1399 const char *dc_name,
1400 struct cli_state *cli)
1402 char addr[INET6_ADDRSTRLEN];
1406 if (!cli_state_is_connected(cli)) {
1410 print_sockaddr(addr, sizeof(addr),
1411 cli_state_remote_sockaddr(cli));
1413 key = current_dc_key(talloc_tos(), domain_name);
1418 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1419 if (value == NULL) {
1423 gencache_set(key, value, 0x7fffffff);
1429 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1430 const char *domain_name,
1431 char **p_dc_name, char **p_dc_ip)
1433 char *key, *value, *p;
1435 char *dc_name = NULL;
1438 key = current_dc_key(talloc_tos(), domain_name);
1442 if (!gencache_get(key, &value, NULL)) {
1445 p = strchr(value, ' ');
1449 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1450 if (dc_ip == NULL) {
1453 dc_name = talloc_strdup(mem_ctx, p+1);
1454 if (dc_name == NULL) {
1458 if (p_dc_ip != NULL) {
1462 if (p_dc_name != NULL) {
1463 *p_dc_name = dc_name;
1468 TALLOC_FREE(dc_name);
1474 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1475 struct winbindd_cm_conn *new_conn)
1477 TALLOC_CTX *mem_ctx;
1479 char *saf_servername = saf_fetch( domain->name );
1482 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1483 SAFE_FREE(saf_servername);
1484 set_domain_offline(domain);
1485 return NT_STATUS_NO_MEMORY;
1488 /* we have to check the server affinity cache here since
1489 later we select a DC based on response time and not preference */
1491 /* Check the negative connection cache
1492 before talking to it. It going down may have
1493 triggered the reconnection. */
1495 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1497 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1498 saf_servername, domain->name ));
1500 /* convert an ip address to a name */
1501 if (is_ipaddress( saf_servername ) ) {
1503 struct sockaddr_storage ss;
1505 if (!interpret_string_addr(&ss, saf_servername,
1507 return NT_STATUS_UNSUCCESSFUL;
1509 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1510 strlcpy(domain->dcname, saf_name, sizeof(domain->dcname));
1512 winbind_add_failed_connection_entry(
1513 domain, saf_servername,
1514 NT_STATUS_UNSUCCESSFUL);
1517 fstrcpy( domain->dcname, saf_servername );
1520 SAFE_FREE( saf_servername );
1523 for (retries = 0; retries < 3; retries++) {
1527 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1529 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1530 domain->dcname, domain->name ));
1533 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1534 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1538 status = smbsock_connect(&domain->dcaddr, 0,
1541 if (!NT_STATUS_IS_OK(status)) {
1547 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1549 /* This is the one place where we will
1550 set the global winbindd offline state
1551 to true, if a "WINBINDD_OFFLINE" entry
1552 is found in the winbindd cache. */
1553 set_global_winbindd_state_offline();
1557 new_conn->cli = NULL;
1559 result = cm_prepare_connection(domain, fd, domain->dcname,
1560 &new_conn->cli, &retry);
1566 if (NT_STATUS_IS_OK(result)) {
1568 winbindd_set_locator_kdc_envs(domain);
1570 if (domain->online == False) {
1571 /* We're changing state from offline to online. */
1572 set_global_winbindd_state_online();
1574 set_domain_online(domain);
1577 * Much as I hate global state, this seems to be the point
1578 * where we can be certain that we have a proper connection to
1579 * a DC. wbinfo --dc-info needs that information, store it in
1580 * gencache with a looong timeout. This will need revisiting
1581 * once we start to connect to multiple DCs, wbcDcInfo is
1582 * already prepared for that.
1584 store_current_dc_in_gencache(domain->name, domain->dcname,
1587 /* Ensure we setup the retry handler. */
1588 set_domain_offline(domain);
1591 talloc_destroy(mem_ctx);
1595 /* Close down all open pipes on a connection. */
1597 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1601 /* We're closing down a possibly dead
1602 connection. Don't have impossibly long (10s) timeouts. */
1605 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1608 if (conn->samr_pipe != NULL) {
1609 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1610 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1612 &conn->sam_connect_handle,
1615 TALLOC_FREE(conn->samr_pipe);
1616 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1618 cli_set_timeout(conn->cli, 500);
1622 if (conn->lsa_pipe != NULL) {
1623 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1624 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1629 TALLOC_FREE(conn->lsa_pipe);
1630 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1632 cli_set_timeout(conn->cli, 500);
1636 if (conn->lsa_pipe_tcp != NULL) {
1637 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1638 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1643 TALLOC_FREE(conn->lsa_pipe_tcp);
1644 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1646 cli_set_timeout(conn->cli, 500);
1650 if (conn->netlogon_pipe != NULL) {
1651 TALLOC_FREE(conn->netlogon_pipe);
1652 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1654 cli_set_timeout(conn->cli, 500);
1659 cli_shutdown(conn->cli);
1665 void close_conns_after_fork(void)
1667 struct winbindd_domain *domain;
1668 struct winbindd_cli_state *cli_state;
1670 for (domain = domain_list(); domain; domain = domain->next) {
1672 * first close the low level SMB TCP connection
1673 * so that we don't generate any SMBclose
1674 * requests in invalidate_cm_connection()
1676 if (cli_state_is_connected(domain->conn.cli)) {
1677 cli_state_disconnect(domain->conn.cli);
1680 invalidate_cm_connection(&domain->conn);
1683 for (cli_state = winbindd_client_list();
1685 cli_state = cli_state->next) {
1686 if (cli_state->sock >= 0) {
1687 close(cli_state->sock);
1688 cli_state->sock = -1;
1693 static bool connection_ok(struct winbindd_domain *domain)
1697 ok = cli_state_is_connected(domain->conn.cli);
1699 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1700 domain->dcname, domain->name));
1704 if (domain->online == False) {
1705 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1712 /* Initialize a new connection up to the RPC BIND.
1713 Bypass online status check so always does network calls. */
1715 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1719 /* Internal connections never use the network. */
1720 if (domain->internal) {
1721 domain->initialized = True;
1722 return NT_STATUS_OK;
1725 if (!winbindd_can_contact_domain(domain)) {
1726 invalidate_cm_connection(&domain->conn);
1727 domain->initialized = True;
1728 return NT_STATUS_OK;
1731 if (connection_ok(domain)) {
1732 if (!domain->initialized) {
1733 set_dc_type_and_flags(domain);
1735 return NT_STATUS_OK;
1738 invalidate_cm_connection(&domain->conn);
1740 result = cm_open_connection(domain, &domain->conn);
1742 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1743 set_dc_type_and_flags(domain);
1749 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1751 if (domain->internal) {
1752 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1755 if (domain->initialized && !domain->online) {
1756 /* We check for online status elsewhere. */
1757 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1760 return init_dc_connection_network(domain);
1763 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1767 status = init_dc_connection(domain);
1768 if (!NT_STATUS_IS_OK(status)) {
1772 if (!domain->internal && domain->conn.cli == NULL) {
1773 /* happens for trusted domains without inbound trust */
1774 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1777 return NT_STATUS_OK;
1780 /******************************************************************************
1781 Set the trust flags (direction and forest location) for a domain
1782 ******************************************************************************/
1784 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1786 struct winbindd_domain *our_domain;
1787 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1789 struct netr_DomainTrustList trusts;
1791 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1792 NETR_TRUST_FLAG_OUTBOUND |
1793 NETR_TRUST_FLAG_INBOUND);
1794 struct rpc_pipe_client *cli;
1795 TALLOC_CTX *mem_ctx = NULL;
1796 struct dcerpc_binding_handle *b;
1798 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1800 /* Our primary domain doesn't need to worry about trust flags.
1801 Force it to go through the network setup */
1802 if ( domain->primary ) {
1806 our_domain = find_our_domain();
1808 if ( !connection_ok(our_domain) ) {
1809 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1813 /* This won't work unless our domain is AD */
1815 if ( !our_domain->active_directory ) {
1819 /* Use DsEnumerateDomainTrusts to get us the trust direction
1822 result = cm_connect_netlogon(our_domain, &cli);
1824 if (!NT_STATUS_IS_OK(result)) {
1825 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1826 "a connection to %s for PIPE_NETLOGON (%s)\n",
1827 domain->name, nt_errstr(result)));
1831 b = cli->binding_handle;
1833 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1834 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1838 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1843 if (!NT_STATUS_IS_OK(result)) {
1844 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1845 "failed to query trusted domain list: %s\n",
1846 nt_errstr(result)));
1847 talloc_destroy(mem_ctx);
1850 if (!W_ERROR_IS_OK(werr)) {
1851 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1852 "failed to query trusted domain list: %s\n",
1854 talloc_destroy(mem_ctx);
1858 /* Now find the domain name and get the flags */
1860 for ( i=0; i<trusts.count; i++ ) {
1861 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1862 domain->domain_flags = trusts.array[i].trust_flags;
1863 domain->domain_type = trusts.array[i].trust_type;
1864 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1866 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1867 domain->active_directory = True;
1869 /* This flag is only set if the domain is *our*
1870 primary domain and the primary domain is in
1873 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1875 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1876 "native mode.\n", domain->name,
1877 domain->native_mode ? "" : "NOT "));
1879 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1880 "running active directory.\n", domain->name,
1881 domain->active_directory ? "" : "NOT "));
1884 domain->initialized = True;
1890 talloc_destroy( mem_ctx );
1892 return domain->initialized;
1895 /******************************************************************************
1896 We can 'sense' certain things about the DC by it's replies to certain
1899 This tells us if this particular remote server is Active Directory, and if it
1901 ******************************************************************************/
1903 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1905 NTSTATUS status, result;
1907 TALLOC_CTX *mem_ctx = NULL;
1908 struct rpc_pipe_client *cli = NULL;
1909 struct policy_handle pol;
1910 union dssetup_DsRoleInfo info;
1911 union lsa_PolicyInformation *lsa_info = NULL;
1913 if (!connection_ok(domain)) {
1917 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1920 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1924 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1926 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1927 &ndr_table_dssetup.syntax_id,
1930 if (!NT_STATUS_IS_OK(status)) {
1931 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1932 "PI_DSSETUP on domain %s: (%s)\n",
1933 domain->name, nt_errstr(status)));
1935 /* if this is just a non-AD domain we need to continue
1936 * identifying so that we can in the end return with
1937 * domain->initialized = True - gd */
1942 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1943 DS_ROLE_BASIC_INFORMATION,
1948 if (NT_STATUS_IS_OK(status)) {
1949 result = werror_to_ntstatus(werr);
1951 if (!NT_STATUS_IS_OK(status)) {
1952 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1953 "on domain %s failed: (%s)\n",
1954 domain->name, nt_errstr(status)));
1956 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1957 * every opcode on the DSSETUP pipe, continue with
1958 * no_dssetup mode here as well to get domain->initialized
1961 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
1965 TALLOC_FREE(mem_ctx);
1969 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1970 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1971 domain->native_mode = True;
1973 domain->native_mode = False;
1977 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1978 &ndr_table_lsarpc.syntax_id, &cli);
1980 if (!NT_STATUS_IS_OK(status)) {
1981 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1982 "PI_LSARPC on domain %s: (%s)\n",
1983 domain->name, nt_errstr(status)));
1985 TALLOC_FREE(mem_ctx);
1989 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
1990 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
1992 if (NT_STATUS_IS_OK(status)) {
1993 /* This particular query is exactly what Win2k clients use
1994 to determine that the DC is active directory */
1995 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
1997 LSA_POLICY_INFO_DNS,
2002 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2003 domain->active_directory = True;
2005 if (lsa_info->dns.name.string) {
2006 fstrcpy(domain->name, lsa_info->dns.name.string);
2009 if (lsa_info->dns.dns_domain.string) {
2010 fstrcpy(domain->alt_name,
2011 lsa_info->dns.dns_domain.string);
2014 /* See if we can set some domain trust flags about
2017 if (lsa_info->dns.dns_forest.string) {
2018 fstrcpy(domain->forest_name,
2019 lsa_info->dns.dns_forest.string);
2021 if (strequal(domain->forest_name, domain->alt_name)) {
2022 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2026 if (lsa_info->dns.sid) {
2027 sid_copy(&domain->sid, lsa_info->dns.sid);
2030 domain->active_directory = False;
2032 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2033 SEC_FLAG_MAXIMUM_ALLOWED,
2036 if (!NT_STATUS_IS_OK(status)) {
2040 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2042 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2045 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2047 if (lsa_info->account_domain.name.string) {
2048 fstrcpy(domain->name,
2049 lsa_info->account_domain.name.string);
2052 if (lsa_info->account_domain.sid) {
2053 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2059 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2060 domain->name, domain->native_mode ? "" : "NOT "));
2062 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2063 domain->name, domain->active_directory ? "" : "NOT "));
2065 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2066 domain->can_do_validation6 = domain->active_directory;
2070 TALLOC_FREE(mem_ctx);
2072 domain->initialized = True;
2075 /**********************************************************************
2076 Set the domain_flags (trust attributes, domain operating modes, etc...
2077 ***********************************************************************/
2079 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2081 /* we always have to contact our primary domain */
2083 if ( domain->primary ) {
2084 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2085 "primary domain\n"));
2086 set_dc_type_and_flags_connect( domain );
2090 /* Use our DC to get the information if possible */
2092 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2093 /* Otherwise, fallback to contacting the
2095 set_dc_type_and_flags_connect( domain );
2103 /**********************************************************************
2104 ***********************************************************************/
2106 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2107 struct netlogon_creds_CredentialState **ppdc)
2109 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2110 struct rpc_pipe_client *netlogon_pipe;
2112 if (lp_client_schannel() == False) {
2113 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2116 result = cm_connect_netlogon(domain, &netlogon_pipe);
2117 if (!NT_STATUS_IS_OK(result)) {
2121 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2124 if (!domain->conn.netlogon_pipe->dc) {
2125 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2128 *ppdc = domain->conn.netlogon_pipe->dc;
2129 return NT_STATUS_OK;
2132 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2133 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2135 struct winbindd_cm_conn *conn;
2136 NTSTATUS status, result;
2137 struct netlogon_creds_CredentialState *p_creds;
2138 char *machine_password = NULL;
2139 char *machine_account = NULL;
2140 char *domain_name = NULL;
2142 if (sid_check_is_domain(&domain->sid)) {
2143 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2146 status = init_dc_connection_rpc(domain);
2147 if (!NT_STATUS_IS_OK(status)) {
2151 conn = &domain->conn;
2153 if (rpccli_is_connected(conn->samr_pipe)) {
2157 TALLOC_FREE(conn->samr_pipe);
2160 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2161 * sign and sealed pipe using the machine account password by
2162 * preference. If we can't - try schannel, if that fails, try
2166 if ((conn->cli->user_name[0] == '\0') ||
2167 (conn->cli->domain[0] == '\0') ||
2168 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2170 status = get_trust_creds(domain, &machine_password,
2171 &machine_account, NULL);
2172 if (!NT_STATUS_IS_OK(status)) {
2173 DEBUG(10, ("cm_connect_sam: No no user available for "
2174 "domain %s, trying schannel\n", conn->cli->domain));
2177 domain_name = domain->name;
2179 machine_password = SMB_STRDUP(conn->cli->password);
2180 machine_account = SMB_STRDUP(conn->cli->user_name);
2181 domain_name = conn->cli->domain;
2184 if (!machine_password || !machine_account) {
2185 status = NT_STATUS_NO_MEMORY;
2189 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2190 authenticated SAMR pipe with sign & seal. */
2191 status = cli_rpc_pipe_open_spnego_ntlmssp(conn->cli,
2192 &ndr_table_samr.syntax_id,
2194 DCERPC_AUTH_LEVEL_PRIVACY,
2200 if (!NT_STATUS_IS_OK(status)) {
2201 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2202 "pipe for domain %s using NTLMSSP "
2203 "authenticated pipe: user %s\\%s. Error was "
2204 "%s\n", domain->name, domain_name,
2205 machine_account, nt_errstr(status)));
2209 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2210 "domain %s using NTLMSSP authenticated "
2211 "pipe: user %s\\%s\n", domain->name,
2212 domain_name, machine_account));
2214 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2215 conn->samr_pipe->desthost,
2216 SEC_FLAG_MAXIMUM_ALLOWED,
2217 &conn->sam_connect_handle,
2219 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2222 if (NT_STATUS_IS_OK(status)) {
2226 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2227 "failed for domain %s, error was %s. Trying schannel\n",
2228 domain->name, nt_errstr(status) ));
2229 TALLOC_FREE(conn->samr_pipe);
2233 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2235 status = cm_get_schannel_creds(domain, &p_creds);
2236 if (!NT_STATUS_IS_OK(status)) {
2237 /* If this call fails - conn->cli can now be NULL ! */
2238 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2239 "for domain %s (error %s), trying anon\n",
2241 nt_errstr(status) ));
2244 status = cli_rpc_pipe_open_schannel_with_key
2245 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2246 DCERPC_AUTH_LEVEL_PRIVACY,
2247 domain->name, &p_creds, &conn->samr_pipe);
2249 if (!NT_STATUS_IS_OK(status)) {
2250 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2251 "domain %s using schannel. Error was %s\n",
2252 domain->name, nt_errstr(status) ));
2255 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2256 "schannel.\n", domain->name ));
2258 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2259 conn->samr_pipe->desthost,
2260 SEC_FLAG_MAXIMUM_ALLOWED,
2261 &conn->sam_connect_handle,
2263 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2266 if (NT_STATUS_IS_OK(status)) {
2269 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2270 "for domain %s, error was %s. Trying anonymous\n",
2271 domain->name, nt_errstr(status) ));
2272 TALLOC_FREE(conn->samr_pipe);
2276 /* Finally fall back to anonymous. */
2277 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2280 if (!NT_STATUS_IS_OK(status)) {
2284 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2285 conn->samr_pipe->desthost,
2286 SEC_FLAG_MAXIMUM_ALLOWED,
2287 &conn->sam_connect_handle,
2289 if (!NT_STATUS_IS_OK(status)) {
2290 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2291 "for domain %s Error was %s\n",
2292 domain->name, nt_errstr(status) ));
2295 if (!NT_STATUS_IS_OK(result)) {
2297 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2298 "for domain %s Error was %s\n",
2299 domain->name, nt_errstr(result)));
2304 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2306 &conn->sam_connect_handle,
2307 SEC_FLAG_MAXIMUM_ALLOWED,
2309 &conn->sam_domain_handle,
2311 if (!NT_STATUS_IS_OK(status)) {
2318 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2320 * if we got access denied, we might just have no access rights
2321 * to talk to the remote samr server server (e.g. when we are a
2322 * PDC and we are connecting a w2k8 pdc via an interdomain
2323 * trust). In that case do not invalidate the whole connection
2326 TALLOC_FREE(conn->samr_pipe);
2327 ZERO_STRUCT(conn->sam_domain_handle);
2329 } else if (!NT_STATUS_IS_OK(status)) {
2330 invalidate_cm_connection(conn);
2334 *cli = conn->samr_pipe;
2335 *sam_handle = conn->sam_domain_handle;
2336 SAFE_FREE(machine_password);
2337 SAFE_FREE(machine_account);
2341 /**********************************************************************
2342 open an schanneld ncacn_ip_tcp connection to LSA
2343 ***********************************************************************/
2345 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2346 TALLOC_CTX *mem_ctx,
2347 struct rpc_pipe_client **cli)
2349 struct winbindd_cm_conn *conn;
2350 struct netlogon_creds_CredentialState *creds;
2353 DEBUG(10,("cm_connect_lsa_tcp\n"));
2355 status = init_dc_connection_rpc(domain);
2356 if (!NT_STATUS_IS_OK(status)) {
2360 conn = &domain->conn;
2362 if (conn->lsa_pipe_tcp &&
2363 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2364 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2365 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2369 TALLOC_FREE(conn->lsa_pipe_tcp);
2371 status = cm_get_schannel_creds(domain, &creds);
2372 if (!NT_STATUS_IS_OK(status)) {
2376 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2377 &ndr_table_lsarpc.syntax_id,
2379 DCERPC_AUTH_LEVEL_PRIVACY,
2382 &conn->lsa_pipe_tcp);
2383 if (!NT_STATUS_IS_OK(status)) {
2384 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2385 nt_errstr(status)));
2390 if (!NT_STATUS_IS_OK(status)) {
2391 TALLOC_FREE(conn->lsa_pipe_tcp);
2395 *cli = conn->lsa_pipe_tcp;
2400 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2401 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2403 struct winbindd_cm_conn *conn;
2404 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2405 struct netlogon_creds_CredentialState *p_creds;
2407 result = init_dc_connection_rpc(domain);
2408 if (!NT_STATUS_IS_OK(result))
2411 conn = &domain->conn;
2413 if (rpccli_is_connected(conn->lsa_pipe)) {
2417 TALLOC_FREE(conn->lsa_pipe);
2419 if ((conn->cli->user_name[0] == '\0') ||
2420 (conn->cli->domain[0] == '\0') ||
2421 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2422 DEBUG(10, ("cm_connect_lsa: No no user available for "
2423 "domain %s, trying schannel\n", conn->cli->domain));
2427 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2428 * authenticated LSA pipe with sign & seal. */
2429 result = cli_rpc_pipe_open_spnego_ntlmssp
2430 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2431 DCERPC_AUTH_LEVEL_PRIVACY,
2432 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2435 if (!NT_STATUS_IS_OK(result)) {
2436 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2437 "domain %s using NTLMSSP authenticated pipe: user "
2438 "%s\\%s. Error was %s. Trying schannel.\n",
2439 domain->name, conn->cli->domain,
2440 conn->cli->user_name, nt_errstr(result)));
2444 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2445 "NTLMSSP authenticated pipe: user %s\\%s\n",
2446 domain->name, conn->cli->domain, conn->cli->user_name ));
2448 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2449 SEC_FLAG_MAXIMUM_ALLOWED,
2451 if (NT_STATUS_IS_OK(result)) {
2455 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2458 TALLOC_FREE(conn->lsa_pipe);
2462 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2464 result = cm_get_schannel_creds(domain, &p_creds);
2465 if (!NT_STATUS_IS_OK(result)) {
2466 /* If this call fails - conn->cli can now be NULL ! */
2467 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2468 "for domain %s (error %s), trying anon\n",
2470 nt_errstr(result) ));
2473 result = cli_rpc_pipe_open_schannel_with_key
2474 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2475 DCERPC_AUTH_LEVEL_PRIVACY,
2476 domain->name, &p_creds, &conn->lsa_pipe);
2478 if (!NT_STATUS_IS_OK(result)) {
2479 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2480 "domain %s using schannel. Error was %s\n",
2481 domain->name, nt_errstr(result) ));
2484 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2485 "schannel.\n", domain->name ));
2487 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2488 SEC_FLAG_MAXIMUM_ALLOWED,
2490 if (NT_STATUS_IS_OK(result)) {
2494 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2497 TALLOC_FREE(conn->lsa_pipe);
2501 result = cli_rpc_pipe_open_noauth(conn->cli,
2502 &ndr_table_lsarpc.syntax_id,
2504 if (!NT_STATUS_IS_OK(result)) {
2505 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2509 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2510 SEC_FLAG_MAXIMUM_ALLOWED,
2513 if (!NT_STATUS_IS_OK(result)) {
2514 invalidate_cm_connection(conn);
2518 *cli = conn->lsa_pipe;
2519 *lsa_policy = conn->lsa_policy;
2523 /****************************************************************************
2524 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2525 session key stored in conn->netlogon_pipe->dc->sess_key.
2526 ****************************************************************************/
2528 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2529 struct rpc_pipe_client **cli)
2531 struct winbindd_cm_conn *conn;
2534 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2536 enum netr_SchannelType sec_chan_type;
2537 const char *account_name;
2538 struct rpc_pipe_client *netlogon_pipe = NULL;
2542 result = init_dc_connection_rpc(domain);
2543 if (!NT_STATUS_IS_OK(result)) {
2547 conn = &domain->conn;
2549 if (rpccli_is_connected(conn->netlogon_pipe)) {
2550 *cli = conn->netlogon_pipe;
2551 return NT_STATUS_OK;
2554 TALLOC_FREE(conn->netlogon_pipe);
2556 result = cli_rpc_pipe_open_noauth(conn->cli,
2557 &ndr_table_netlogon.syntax_id,
2559 if (!NT_STATUS_IS_OK(result)) {
2563 if ((!IS_DC) && (!domain->primary)) {
2564 /* Clear the schannel request bit and drop down */
2565 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2569 if (lp_client_schannel() != False) {
2570 neg_flags |= NETLOGON_NEG_SCHANNEL;
2573 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2576 TALLOC_FREE(netlogon_pipe);
2577 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2580 result = rpccli_netlogon_setup_creds(
2582 domain->dcname, /* server name. */
2583 domain->name, /* domain name */
2584 lp_netbios_name(), /* client name */
2585 account_name, /* machine account */
2586 mach_pwd, /* machine password */
2587 sec_chan_type, /* from get_trust_pw */
2590 if (!NT_STATUS_IS_OK(result)) {
2591 TALLOC_FREE(netlogon_pipe);
2595 if ((lp_client_schannel() == True) &&
2596 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2597 DEBUG(3, ("Server did not offer schannel\n"));
2598 TALLOC_FREE(netlogon_pipe);
2599 return NT_STATUS_ACCESS_DENIED;
2603 if ((lp_client_schannel() == False) ||
2604 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2606 * NetSamLogonEx only works for schannel
2608 domain->can_do_samlogon_ex = False;
2610 /* We're done - just keep the existing connection to NETLOGON
2612 conn->netlogon_pipe = netlogon_pipe;
2613 *cli = conn->netlogon_pipe;
2614 return NT_STATUS_OK;
2617 /* Using the credentials from the first pipe, open a signed and sealed
2618 second netlogon pipe. The session key is stored in the schannel
2619 part of the new pipe auth struct.
2622 result = cli_rpc_pipe_open_schannel_with_key(
2623 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2624 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2625 &conn->netlogon_pipe);
2627 /* We can now close the initial netlogon pipe. */
2628 TALLOC_FREE(netlogon_pipe);
2630 if (!NT_STATUS_IS_OK(result)) {
2631 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2632 "was %s\n", nt_errstr(result)));
2634 invalidate_cm_connection(conn);
2639 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2640 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2641 * supported). We used to only try SamLogonEx for AD, but
2642 * Samba DCs can also do it. And because we don't distinguish
2643 * between Samba and NT4, always try it once.
2645 domain->can_do_samlogon_ex = true;
2647 *cli = conn->netlogon_pipe;
2648 return NT_STATUS_OK;
2651 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2654 struct server_id server_id,
2657 struct winbindd_domain *domain;
2658 char *freeit = NULL;
2662 || (data->data == NULL)
2663 || (data->length == 0)
2664 || (data->data[data->length-1] != '\0')) {
2665 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2670 addr = (char *)data->data;
2671 DEBUG(10, ("IP %s dropped\n", addr));
2673 if (!is_ipaddress(addr)) {
2676 * Some code sends us ip addresses with the /netmask
2679 slash = strchr(addr, '/');
2680 if (slash == NULL) {
2681 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2685 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2686 if (freeit == NULL) {
2687 DEBUG(1, ("talloc failed\n"));
2691 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2694 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2695 char sockaddr[INET6_ADDRSTRLEN];
2697 if (!cli_state_is_connected(domain->conn.cli)) {
2701 print_sockaddr(sockaddr, sizeof(sockaddr),
2702 cli_state_local_sockaddr(domain->conn.cli));
2704 if (strequal(sockaddr, addr)) {
2705 cli_state_disconnect(domain->conn.cli);
2708 TALLOC_FREE(freeit);