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 uint16_t sec_mode
= 0;
793 struct named_mutex
*mutex
;
795 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
797 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
798 controller
, domain
->name
));
802 mutex
= grab_named_mutex(talloc_tos(), controller
,
803 WINBIND_SERVER_MUTEX_WAIT_TIME
);
805 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
807 result
= NT_STATUS_POSSIBLE_DEADLOCK
;
811 flags
|= CLI_FULL_CONNECTION_USE_KERBEROS
;
813 *cli
= cli_state_create(NULL
, sockfd
,
814 controller
, domain
->alt_name
,
815 SMB_SIGNING_DEFAULT
, flags
);
817 DEBUG(1, ("Could not cli_initialize\n"));
818 result
= NT_STATUS_NO_MEMORY
;
822 cli_set_timeout(*cli
, 10000); /* 10 seconds */
824 result
= cli_negprot(*cli
, PROTOCOL_NT1
);
826 if (!NT_STATUS_IS_OK(result
)) {
827 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result
)));
831 if (!is_dc_trusted_domain_situation(domain
->name
) &&
832 cli_state_protocol(*cli
) >= PROTOCOL_NT1
&&
833 cli_state_capabilities(*cli
) & CAP_EXTENDED_SECURITY
)
835 result
= get_trust_creds(domain
, &machine_password
,
837 &machine_krb5_principal
);
838 if (!NT_STATUS_IS_OK(result
)) {
842 if (lp_security() == SEC_ADS
) {
844 /* Try a krb5 session */
846 (*cli
)->use_kerberos
= True
;
847 DEBUG(5, ("connecting to %s from %s with kerberos principal "
848 "[%s] and realm [%s]\n", controller
, lp_netbios_name(),
849 machine_krb5_principal
, domain
->alt_name
));
851 winbindd_set_locator_kdc_envs(domain
);
853 result
= cli_session_setup(*cli
,
854 machine_krb5_principal
,
856 strlen(machine_password
)+1,
858 strlen(machine_password
)+1,
861 if (!NT_STATUS_IS_OK(result
)) {
862 DEBUG(4,("failed kerberos session setup with %s\n",
866 if (NT_STATUS_IS_OK(result
)) {
867 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
868 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
869 if (!NT_STATUS_IS_OK(result
)) {
872 goto session_setup_done
;
876 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
877 (*cli
)->use_kerberos
= False
;
879 DEBUG(5, ("connecting to %s from %s with username "
880 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
881 lp_workgroup(), machine_account
));
883 result
= cli_session_setup(*cli
,
886 strlen(machine_password
)+1,
888 strlen(machine_password
)+1,
890 if (!NT_STATUS_IS_OK(result
)) {
891 DEBUG(4, ("authenticated session setup failed with %s\n",
895 if (NT_STATUS_IS_OK(result
)) {
896 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
897 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
898 if (!NT_STATUS_IS_OK(result
)) {
901 goto session_setup_done
;
905 /* Fall back to non-kerberos session setup with auth_user */
907 (*cli
)->use_kerberos
= False
;
909 cm_get_ipc_userpass(&ipc_username
, &ipc_domain
, &ipc_password
);
911 sec_mode
= cli_state_security_mode(*cli
);
912 if (((sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) != 0) &&
913 (strlen(ipc_username
) > 0)) {
915 /* Only try authenticated if we have a username */
917 DEBUG(5, ("connecting to %s from %s with username "
918 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
919 ipc_domain
, ipc_username
));
921 if (NT_STATUS_IS_OK(cli_session_setup(
923 ipc_password
, strlen(ipc_password
)+1,
924 ipc_password
, strlen(ipc_password
)+1,
926 /* Successful logon with given username. */
927 result
= cli_init_creds(*cli
, ipc_username
, ipc_domain
, ipc_password
);
928 if (!NT_STATUS_IS_OK(result
)) {
931 goto session_setup_done
;
933 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
934 ipc_domain
, ipc_username
));
940 /* Fall back to anonymous connection, this might fail later */
941 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
942 "connection for DC %s\n",
945 result
= cli_session_setup(*cli
, "", NULL
, 0, NULL
, 0, "");
946 if (NT_STATUS_IS_OK(result
)) {
947 DEBUG(5, ("Connected anonymously\n"));
948 result
= cli_init_creds(*cli
, "", "", "");
949 if (!NT_STATUS_IS_OK(result
)) {
952 goto session_setup_done
;
955 /* We can't session setup */
960 /* cache the server name for later connections */
962 saf_store(domain
->name
, controller
);
963 if (domain
->alt_name
&& (*cli
)->use_kerberos
) {
964 saf_store(domain
->alt_name
, controller
);
967 winbindd_set_locator_kdc_envs(domain
);
969 result
= cli_tcon_andx(*cli
, "IPC$", "IPC", "", 0);
971 if (!NT_STATUS_IS_OK(result
)) {
972 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result
)));
979 /* set the domain if empty; needed for schannel connections */
980 if ( !(*cli
)->domain
[0] ) {
981 result
= cli_set_domain((*cli
), domain
->name
);
982 if (!NT_STATUS_IS_OK(result
)) {
987 result
= NT_STATUS_OK
;
991 SAFE_FREE(machine_account
);
992 SAFE_FREE(machine_password
);
993 SAFE_FREE(machine_krb5_principal
);
994 SAFE_FREE(ipc_username
);
995 SAFE_FREE(ipc_domain
);
996 SAFE_FREE(ipc_password
);
998 if (!NT_STATUS_IS_OK(result
)) {
999 winbind_add_failed_connection_entry(domain
, controller
, result
);
1000 if ((*cli
) != NULL
) {
1009 /*******************************************************************
1010 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1013 Keeps the list unique by not adding duplicate entries.
1015 @param[in] mem_ctx talloc memory context to allocate from
1016 @param[in] domain_name domain of the DC
1017 @param[in] dcname name of the DC to add to the list
1018 @param[in] pss Internet address and port pair to add to the list
1019 @param[in,out] dcs array of dc_name_ip structures to add to
1020 @param[in,out] num_dcs number of dcs returned in the dcs array
1021 @return true if the list was added to, false otherwise
1022 *******************************************************************/
1024 static bool add_one_dc_unique(TALLOC_CTX
*mem_ctx
, const char *domain_name
,
1025 const char *dcname
, struct sockaddr_storage
*pss
,
1026 struct dc_name_ip
**dcs
, int *num
)
1030 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name
, dcname
))) {
1031 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname
));
1035 /* Make sure there's no duplicates in the list */
1036 for (i
=0; i
<*num
; i
++)
1038 (struct sockaddr
*)(void *)&(*dcs
)[i
].ss
,
1039 (struct sockaddr
*)(void *)pss
))
1042 *dcs
= talloc_realloc(mem_ctx
, *dcs
, struct dc_name_ip
, (*num
)+1);
1047 fstrcpy((*dcs
)[*num
].name
, dcname
);
1048 (*dcs
)[*num
].ss
= *pss
;
1053 static bool add_sockaddr_to_array(TALLOC_CTX
*mem_ctx
,
1054 struct sockaddr_storage
*pss
, uint16 port
,
1055 struct sockaddr_storage
**addrs
, int *num
)
1057 *addrs
= talloc_realloc(mem_ctx
, *addrs
, struct sockaddr_storage
, (*num
)+1);
1059 if (*addrs
== NULL
) {
1064 (*addrs
)[*num
] = *pss
;
1065 set_sockaddr_port((struct sockaddr
*)&(*addrs
)[*num
], port
);
1071 /*******************************************************************
1072 convert an ip to a name
1073 *******************************************************************/
1075 static bool dcip_to_name(TALLOC_CTX
*mem_ctx
,
1076 const struct winbindd_domain
*domain
,
1077 struct sockaddr_storage
*pss
,
1080 struct ip_service ip_list
;
1081 uint32_t nt_version
= NETLOGON_NT_VERSION_1
;
1083 const char *dc_name
;
1089 /* For active directory servers, try to get the ldap server name.
1090 None of these failures should be considered critical for now */
1092 if (lp_security() == SEC_ADS
) {
1094 ADS_STATUS ads_status
;
1095 char addr
[INET6_ADDRSTRLEN
];
1097 print_sockaddr(addr
, sizeof(addr
), pss
);
1099 ads
= ads_init(domain
->alt_name
, domain
->name
, addr
);
1100 ads
->auth
.flags
|= ADS_AUTH_NO_BIND
;
1102 ads_status
= ads_connect(ads
);
1103 if (ADS_ERR_OK(ads_status
)) {
1104 /* We got a cldap packet. */
1105 fstrcpy(name
, ads
->config
.ldap_server_name
);
1106 namecache_store(name
, 0x20, 1, &ip_list
);
1108 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads
->config
.flags
));
1110 if (domain
->primary
&& (ads
->config
.flags
& NBT_SERVER_KDC
)) {
1111 if (ads_closest_dc(ads
)) {
1112 char *sitename
= sitename_fetch(ads
->config
.realm
);
1114 /* We're going to use this KDC for this realm/domain.
1115 If we are using sites, then force the krb5 libs
1118 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1124 SAFE_FREE(sitename
);
1126 /* use an off site KDC */
1127 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1133 winbindd_set_locator_kdc_envs(domain
);
1135 /* Ensure we contact this DC also. */
1136 saf_store( domain
->name
, name
);
1137 saf_store( domain
->alt_name
, name
);
1140 ads_destroy( &ads
);
1144 ads_destroy( &ads
);
1148 status
= nbt_getdc(winbind_messaging_context(), pss
, domain
->name
,
1149 &domain
->sid
, nt_version
, mem_ctx
, &nt_version
,
1151 if (NT_STATUS_IS_OK(status
)) {
1152 fstrcpy(name
, dc_name
);
1153 namecache_store(name
, 0x20, 1, &ip_list
);
1157 /* try node status request */
1159 if ( name_status_find(domain
->name
, 0x1c, 0x20, pss
, name
) ) {
1160 namecache_store(name
, 0x20, 1, &ip_list
);
1166 /*******************************************************************
1167 Retrieve a list of IP addresses for domain controllers.
1169 The array is sorted in the preferred connection order.
1171 @param[in] mem_ctx talloc memory context to allocate from
1172 @param[in] domain domain to retrieve DCs for
1173 @param[out] dcs array of dcs that will be returned
1174 @param[out] num_dcs number of dcs returned in the dcs array
1176 *******************************************************************/
1178 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
1179 struct dc_name_ip
**dcs
, int *num_dcs
)
1182 struct sockaddr_storage ss
;
1183 struct ip_service
*ip_list
= NULL
;
1184 int iplist_size
= 0;
1187 enum security_types sec
= (enum security_types
)lp_security();
1189 is_our_domain
= strequal(domain
->name
, lp_workgroup());
1191 /* If not our domain, get the preferred DC, by asking our primary DC */
1193 && get_dc_name_via_netlogon(domain
, dcname
, &ss
)
1194 && add_one_dc_unique(mem_ctx
, domain
->name
, dcname
, &ss
, dcs
,
1197 char addr
[INET6_ADDRSTRLEN
];
1198 print_sockaddr(addr
, sizeof(addr
), &ss
);
1199 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1204 if (sec
== SEC_ADS
) {
1205 char *sitename
= NULL
;
1207 /* We need to make sure we know the local site before
1208 doing any DNS queries, as this will restrict the
1209 get_sorted_dc_list() call below to only fetching
1210 DNS records for the correct site. */
1212 /* Find any DC to get the site record.
1213 We deliberately don't care about the
1216 get_dc_name(domain
->name
, domain
->alt_name
, dcname
, &ss
);
1218 sitename
= sitename_fetch(domain
->alt_name
);
1221 /* Do the site-specific AD dns lookup first. */
1222 get_sorted_dc_list(domain
->alt_name
, sitename
, &ip_list
,
1223 &iplist_size
, True
);
1225 /* Add ips to the DC array. We don't look up the name
1226 of the DC in this function, but we fill in the char*
1227 of the ip now to make the failed connection cache
1229 for ( i
=0; i
<iplist_size
; i
++ ) {
1230 char addr
[INET6_ADDRSTRLEN
];
1231 print_sockaddr(addr
, sizeof(addr
),
1233 add_one_dc_unique(mem_ctx
,
1242 SAFE_FREE(sitename
);
1246 /* Now we add DCs from the main AD DNS lookup. */
1247 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1248 &iplist_size
, True
);
1250 for ( i
=0; i
<iplist_size
; i
++ ) {
1251 char addr
[INET6_ADDRSTRLEN
];
1252 print_sockaddr(addr
, sizeof(addr
),
1254 add_one_dc_unique(mem_ctx
,
1266 /* Try standard netbios queries if no ADS */
1267 if (*num_dcs
== 0) {
1268 get_sorted_dc_list(domain
->name
, NULL
, &ip_list
, &iplist_size
,
1271 for ( i
=0; i
<iplist_size
; i
++ ) {
1272 char addr
[INET6_ADDRSTRLEN
];
1273 print_sockaddr(addr
, sizeof(addr
),
1275 add_one_dc_unique(mem_ctx
,
1290 /*******************************************************************
1291 Find and make a connection to a DC in the given domain.
1293 @param[in] mem_ctx talloc memory context to allocate from
1294 @param[in] domain domain to find a dc in
1295 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1296 @param[out] pss DC Internet address and port
1297 @param[out] fd fd of the open socket connected to the newly found dc
1298 @return true when a DC connection is made, false otherwise
1299 *******************************************************************/
1301 static bool find_new_dc(TALLOC_CTX
*mem_ctx
,
1302 struct winbindd_domain
*domain
,
1303 fstring dcname
, struct sockaddr_storage
*pss
, int *fd
)
1305 struct dc_name_ip
*dcs
= NULL
;
1308 const char **dcnames
= NULL
;
1309 int num_dcnames
= 0;
1311 struct sockaddr_storage
*addrs
= NULL
;
1322 if (!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
) || (num_dcs
== 0))
1325 for (i
=0; i
<num_dcs
; i
++) {
1327 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1328 &dcnames
, &num_dcnames
)) {
1331 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, 445,
1332 &addrs
, &num_addrs
)) {
1337 if ((num_dcnames
== 0) || (num_dcnames
!= num_addrs
))
1340 if ((addrs
== NULL
) || (dcnames
== NULL
))
1343 status
= smbsock_any_connect(addrs
, dcnames
, NULL
, NULL
, NULL
,
1344 num_addrs
, 0, 10, fd
, &fd_index
, NULL
);
1345 if (!NT_STATUS_IS_OK(status
)) {
1346 for (i
=0; i
<num_dcs
; i
++) {
1347 char ab
[INET6_ADDRSTRLEN
];
1348 print_sockaddr(ab
, sizeof(ab
), &dcs
[i
].ss
);
1349 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1350 "domain %s address %s. Error was %s\n",
1351 domain
->name
, ab
, nt_errstr(status
) ));
1352 winbind_add_failed_connection_entry(domain
,
1353 dcs
[i
].name
, NT_STATUS_UNSUCCESSFUL
);
1358 *pss
= addrs
[fd_index
];
1360 if (*dcnames
[fd_index
] != '\0' && !is_ipaddress(dcnames
[fd_index
])) {
1361 /* Ok, we've got a name for the DC */
1362 fstrcpy(dcname
, dcnames
[fd_index
]);
1366 /* Try to figure out the name */
1367 if (dcip_to_name(mem_ctx
, domain
, pss
, dcname
)) {
1371 /* We can not continue without the DC's name */
1372 winbind_add_failed_connection_entry(domain
, dcs
[fd_index
].name
,
1373 NT_STATUS_UNSUCCESSFUL
);
1375 /* Throw away all arrays as we're doing this again. */
1379 TALLOC_FREE(dcnames
);
1391 static char *current_dc_key(TALLOC_CTX
*mem_ctx
, const char *domain_name
)
1393 return talloc_asprintf_strupper_m(mem_ctx
, "CURRENT_DCNAME/%s",
1397 static void store_current_dc_in_gencache(const char *domain_name
,
1398 const char *dc_name
,
1399 struct cli_state
*cli
)
1401 char addr
[INET6_ADDRSTRLEN
];
1405 if (!cli_state_is_connected(cli
)) {
1409 print_sockaddr(addr
, sizeof(addr
),
1410 cli_state_remote_sockaddr(cli
));
1412 key
= current_dc_key(talloc_tos(), domain_name
);
1417 value
= talloc_asprintf(talloc_tos(), "%s %s", addr
, dc_name
);
1418 if (value
== NULL
) {
1422 gencache_set(key
, value
, 0x7fffffff);
1428 bool fetch_current_dc_from_gencache(TALLOC_CTX
*mem_ctx
,
1429 const char *domain_name
,
1430 char **p_dc_name
, char **p_dc_ip
)
1432 char *key
, *value
, *p
;
1434 char *dc_name
= NULL
;
1437 key
= current_dc_key(talloc_tos(), domain_name
);
1441 if (!gencache_get(key
, &value
, NULL
)) {
1444 p
= strchr(value
, ' ');
1448 dc_ip
= talloc_strndup(mem_ctx
, value
, p
- value
);
1449 if (dc_ip
== NULL
) {
1452 dc_name
= talloc_strdup(mem_ctx
, p
+1);
1453 if (dc_name
== NULL
) {
1457 if (p_dc_ip
!= NULL
) {
1461 if (p_dc_name
!= NULL
) {
1462 *p_dc_name
= dc_name
;
1467 TALLOC_FREE(dc_name
);
1473 static NTSTATUS
cm_open_connection(struct winbindd_domain
*domain
,
1474 struct winbindd_cm_conn
*new_conn
)
1476 TALLOC_CTX
*mem_ctx
;
1478 char *saf_servername
= saf_fetch( domain
->name
);
1481 if ((mem_ctx
= talloc_init("cm_open_connection")) == NULL
) {
1482 SAFE_FREE(saf_servername
);
1483 set_domain_offline(domain
);
1484 return NT_STATUS_NO_MEMORY
;
1487 /* we have to check the server affinity cache here since
1488 later we select a DC based on response time and not preference */
1490 /* Check the negative connection cache
1491 before talking to it. It going down may have
1492 triggered the reconnection. */
1494 if ( saf_servername
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, saf_servername
))) {
1496 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1497 saf_servername
, domain
->name
));
1499 /* convert an ip address to a name */
1500 if (is_ipaddress( saf_servername
) ) {
1502 struct sockaddr_storage ss
;
1504 if (!interpret_string_addr(&ss
, saf_servername
,
1506 return NT_STATUS_UNSUCCESSFUL
;
1508 if (dcip_to_name(mem_ctx
, domain
, &ss
, saf_name
)) {
1509 strlcpy(domain
->dcname
, saf_name
, sizeof(domain
->dcname
));
1511 winbind_add_failed_connection_entry(
1512 domain
, saf_servername
,
1513 NT_STATUS_UNSUCCESSFUL
);
1516 fstrcpy( domain
->dcname
, saf_servername
);
1519 SAFE_FREE( saf_servername
);
1522 for (retries
= 0; retries
< 3; retries
++) {
1526 result
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1528 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1529 domain
->dcname
, domain
->name
));
1532 && NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, domain
->dcname
))
1533 && (resolve_name(domain
->dcname
, &domain
->dcaddr
, 0x20, true)))
1537 status
= smbsock_connect(&domain
->dcaddr
, 0,
1540 if (!NT_STATUS_IS_OK(status
)) {
1546 && !find_new_dc(mem_ctx
, domain
, domain
->dcname
, &domain
->dcaddr
, &fd
))
1548 /* This is the one place where we will
1549 set the global winbindd offline state
1550 to true, if a "WINBINDD_OFFLINE" entry
1551 is found in the winbindd cache. */
1552 set_global_winbindd_state_offline();
1556 new_conn
->cli
= NULL
;
1558 result
= cm_prepare_connection(domain
, fd
, domain
->dcname
,
1559 &new_conn
->cli
, &retry
);
1565 if (NT_STATUS_IS_OK(result
)) {
1567 winbindd_set_locator_kdc_envs(domain
);
1569 if (domain
->online
== False
) {
1570 /* We're changing state from offline to online. */
1571 set_global_winbindd_state_online();
1573 set_domain_online(domain
);
1576 * Much as I hate global state, this seems to be the point
1577 * where we can be certain that we have a proper connection to
1578 * a DC. wbinfo --dc-info needs that information, store it in
1579 * gencache with a looong timeout. This will need revisiting
1580 * once we start to connect to multiple DCs, wbcDcInfo is
1581 * already prepared for that.
1583 store_current_dc_in_gencache(domain
->name
, domain
->dcname
,
1586 /* Ensure we setup the retry handler. */
1587 set_domain_offline(domain
);
1590 talloc_destroy(mem_ctx
);
1594 /* Close down all open pipes on a connection. */
1596 void invalidate_cm_connection(struct winbindd_cm_conn
*conn
)
1600 /* We're closing down a possibly dead
1601 connection. Don't have impossibly long (10s) timeouts. */
1604 cli_set_timeout(conn
->cli
, 1000); /* 1 second. */
1607 if (conn
->samr_pipe
!= NULL
) {
1608 if (is_valid_policy_hnd(&conn
->sam_connect_handle
)) {
1609 dcerpc_samr_Close(conn
->samr_pipe
->binding_handle
,
1611 &conn
->sam_connect_handle
,
1614 TALLOC_FREE(conn
->samr_pipe
);
1615 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1617 cli_set_timeout(conn
->cli
, 500);
1621 if (conn
->lsa_pipe
!= NULL
) {
1622 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1623 dcerpc_lsa_Close(conn
->lsa_pipe
->binding_handle
,
1628 TALLOC_FREE(conn
->lsa_pipe
);
1629 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1631 cli_set_timeout(conn
->cli
, 500);
1635 if (conn
->lsa_pipe_tcp
!= NULL
) {
1636 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1637 dcerpc_lsa_Close(conn
->lsa_pipe_tcp
->binding_handle
,
1642 TALLOC_FREE(conn
->lsa_pipe_tcp
);
1643 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1645 cli_set_timeout(conn
->cli
, 500);
1649 if (conn
->netlogon_pipe
!= NULL
) {
1650 TALLOC_FREE(conn
->netlogon_pipe
);
1651 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1653 cli_set_timeout(conn
->cli
, 500);
1658 cli_shutdown(conn
->cli
);
1664 void close_conns_after_fork(void)
1666 struct winbindd_domain
*domain
;
1667 struct winbindd_cli_state
*cli_state
;
1669 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
1671 * first close the low level SMB TCP connection
1672 * so that we don't generate any SMBclose
1673 * requests in invalidate_cm_connection()
1675 if (cli_state_is_connected(domain
->conn
.cli
)) {
1676 cli_state_disconnect(domain
->conn
.cli
);
1679 invalidate_cm_connection(&domain
->conn
);
1682 for (cli_state
= winbindd_client_list();
1684 cli_state
= cli_state
->next
) {
1685 if (cli_state
->sock
>= 0) {
1686 close(cli_state
->sock
);
1687 cli_state
->sock
= -1;
1692 static bool connection_ok(struct winbindd_domain
*domain
)
1696 ok
= cli_state_is_connected(domain
->conn
.cli
);
1698 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1699 domain
->dcname
, domain
->name
));
1703 if (domain
->online
== False
) {
1704 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain
->name
));
1711 /* Initialize a new connection up to the RPC BIND.
1712 Bypass online status check so always does network calls. */
1714 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
)
1718 /* Internal connections never use the network. */
1719 if (domain
->internal
) {
1720 domain
->initialized
= True
;
1721 return NT_STATUS_OK
;
1724 if (!winbindd_can_contact_domain(domain
)) {
1725 invalidate_cm_connection(&domain
->conn
);
1726 domain
->initialized
= True
;
1727 return NT_STATUS_OK
;
1730 if (connection_ok(domain
)) {
1731 if (!domain
->initialized
) {
1732 set_dc_type_and_flags(domain
);
1734 return NT_STATUS_OK
;
1737 invalidate_cm_connection(&domain
->conn
);
1739 result
= cm_open_connection(domain
, &domain
->conn
);
1741 if (NT_STATUS_IS_OK(result
) && !domain
->initialized
) {
1742 set_dc_type_and_flags(domain
);
1748 NTSTATUS
init_dc_connection(struct winbindd_domain
*domain
)
1750 if (domain
->internal
) {
1751 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
1754 if (domain
->initialized
&& !domain
->online
) {
1755 /* We check for online status elsewhere. */
1756 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1759 return init_dc_connection_network(domain
);
1762 static NTSTATUS
init_dc_connection_rpc(struct winbindd_domain
*domain
)
1766 status
= init_dc_connection(domain
);
1767 if (!NT_STATUS_IS_OK(status
)) {
1771 if (!domain
->internal
&& domain
->conn
.cli
== NULL
) {
1772 /* happens for trusted domains without inbound trust */
1773 return NT_STATUS_TRUSTED_DOMAIN_FAILURE
;
1776 return NT_STATUS_OK
;
1779 /******************************************************************************
1780 Set the trust flags (direction and forest location) for a domain
1781 ******************************************************************************/
1783 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain
*domain
)
1785 struct winbindd_domain
*our_domain
;
1786 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1788 struct netr_DomainTrustList trusts
;
1790 uint32 flags
= (NETR_TRUST_FLAG_IN_FOREST
|
1791 NETR_TRUST_FLAG_OUTBOUND
|
1792 NETR_TRUST_FLAG_INBOUND
);
1793 struct rpc_pipe_client
*cli
;
1794 TALLOC_CTX
*mem_ctx
= NULL
;
1795 struct dcerpc_binding_handle
*b
;
1797 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain
->name
));
1799 /* Our primary domain doesn't need to worry about trust flags.
1800 Force it to go through the network setup */
1801 if ( domain
->primary
) {
1805 our_domain
= find_our_domain();
1807 if ( !connection_ok(our_domain
) ) {
1808 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1812 /* This won't work unless our domain is AD */
1814 if ( !our_domain
->active_directory
) {
1818 /* Use DsEnumerateDomainTrusts to get us the trust direction
1821 result
= cm_connect_netlogon(our_domain
, &cli
);
1823 if (!NT_STATUS_IS_OK(result
)) {
1824 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1825 "a connection to %s for PIPE_NETLOGON (%s)\n",
1826 domain
->name
, nt_errstr(result
)));
1830 b
= cli
->binding_handle
;
1832 if ( (mem_ctx
= talloc_init("set_dc_type_and_flags_trustinfo")) == NULL
) {
1833 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1837 result
= dcerpc_netr_DsrEnumerateDomainTrusts(b
, mem_ctx
,
1842 if (!NT_STATUS_IS_OK(result
)) {
1843 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1844 "failed to query trusted domain list: %s\n",
1845 nt_errstr(result
)));
1846 talloc_destroy(mem_ctx
);
1849 if (!W_ERROR_IS_OK(werr
)) {
1850 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1851 "failed to query trusted domain list: %s\n",
1853 talloc_destroy(mem_ctx
);
1857 /* Now find the domain name and get the flags */
1859 for ( i
=0; i
<trusts
.count
; i
++ ) {
1860 if ( strequal( domain
->name
, trusts
.array
[i
].netbios_name
) ) {
1861 domain
->domain_flags
= trusts
.array
[i
].trust_flags
;
1862 domain
->domain_type
= trusts
.array
[i
].trust_type
;
1863 domain
->domain_trust_attribs
= trusts
.array
[i
].trust_attributes
;
1865 if ( domain
->domain_type
== NETR_TRUST_TYPE_UPLEVEL
)
1866 domain
->active_directory
= True
;
1868 /* This flag is only set if the domain is *our*
1869 primary domain and the primary domain is in
1872 domain
->native_mode
= (domain
->domain_flags
& NETR_TRUST_FLAG_NATIVE
);
1874 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1875 "native mode.\n", domain
->name
,
1876 domain
->native_mode
? "" : "NOT "));
1878 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1879 "running active directory.\n", domain
->name
,
1880 domain
->active_directory
? "" : "NOT "));
1883 domain
->initialized
= True
;
1889 talloc_destroy( mem_ctx
);
1891 return domain
->initialized
;
1894 /******************************************************************************
1895 We can 'sense' certain things about the DC by it's replies to certain
1898 This tells us if this particular remote server is Active Directory, and if it
1900 ******************************************************************************/
1902 static void set_dc_type_and_flags_connect( struct winbindd_domain
*domain
)
1904 NTSTATUS status
, result
;
1906 TALLOC_CTX
*mem_ctx
= NULL
;
1907 struct rpc_pipe_client
*cli
= NULL
;
1908 struct policy_handle pol
;
1909 union dssetup_DsRoleInfo info
;
1910 union lsa_PolicyInformation
*lsa_info
= NULL
;
1912 if (!connection_ok(domain
)) {
1916 mem_ctx
= talloc_init("set_dc_type_and_flags on domain %s\n",
1919 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1923 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain
->name
));
1925 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
1926 &ndr_table_dssetup
.syntax_id
,
1929 if (!NT_STATUS_IS_OK(status
)) {
1930 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1931 "PI_DSSETUP on domain %s: (%s)\n",
1932 domain
->name
, nt_errstr(status
)));
1934 /* if this is just a non-AD domain we need to continue
1935 * identifying so that we can in the end return with
1936 * domain->initialized = True - gd */
1941 status
= dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli
->binding_handle
, mem_ctx
,
1942 DS_ROLE_BASIC_INFORMATION
,
1947 if (NT_STATUS_IS_OK(status
)) {
1948 result
= werror_to_ntstatus(werr
);
1950 if (!NT_STATUS_IS_OK(status
)) {
1951 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1952 "on domain %s failed: (%s)\n",
1953 domain
->name
, nt_errstr(status
)));
1955 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1956 * every opcode on the DSSETUP pipe, continue with
1957 * no_dssetup mode here as well to get domain->initialized
1960 if (NT_STATUS_EQUAL(status
, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
)) {
1964 TALLOC_FREE(mem_ctx
);
1968 if ((info
.basic
.flags
& DS_ROLE_PRIMARY_DS_RUNNING
) &&
1969 !(info
.basic
.flags
& DS_ROLE_PRIMARY_DS_MIXED_MODE
)) {
1970 domain
->native_mode
= True
;
1972 domain
->native_mode
= False
;
1976 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
1977 &ndr_table_lsarpc
.syntax_id
, &cli
);
1979 if (!NT_STATUS_IS_OK(status
)) {
1980 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1981 "PI_LSARPC on domain %s: (%s)\n",
1982 domain
->name
, nt_errstr(status
)));
1984 TALLOC_FREE(mem_ctx
);
1988 status
= rpccli_lsa_open_policy2(cli
, mem_ctx
, True
,
1989 SEC_FLAG_MAXIMUM_ALLOWED
, &pol
);
1991 if (NT_STATUS_IS_OK(status
)) {
1992 /* This particular query is exactly what Win2k clients use
1993 to determine that the DC is active directory */
1994 status
= dcerpc_lsa_QueryInfoPolicy2(cli
->binding_handle
, mem_ctx
,
1996 LSA_POLICY_INFO_DNS
,
2001 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2002 domain
->active_directory
= True
;
2004 if (lsa_info
->dns
.name
.string
) {
2005 fstrcpy(domain
->name
, lsa_info
->dns
.name
.string
);
2008 if (lsa_info
->dns
.dns_domain
.string
) {
2009 fstrcpy(domain
->alt_name
,
2010 lsa_info
->dns
.dns_domain
.string
);
2013 /* See if we can set some domain trust flags about
2016 if (lsa_info
->dns
.dns_forest
.string
) {
2017 fstrcpy(domain
->forest_name
,
2018 lsa_info
->dns
.dns_forest
.string
);
2020 if (strequal(domain
->forest_name
, domain
->alt_name
)) {
2021 domain
->domain_flags
|= NETR_TRUST_FLAG_TREEROOT
;
2025 if (lsa_info
->dns
.sid
) {
2026 sid_copy(&domain
->sid
, lsa_info
->dns
.sid
);
2029 domain
->active_directory
= False
;
2031 status
= rpccli_lsa_open_policy(cli
, mem_ctx
, True
,
2032 SEC_FLAG_MAXIMUM_ALLOWED
,
2035 if (!NT_STATUS_IS_OK(status
)) {
2039 status
= dcerpc_lsa_QueryInfoPolicy(cli
->binding_handle
, mem_ctx
,
2041 LSA_POLICY_INFO_ACCOUNT_DOMAIN
,
2044 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2046 if (lsa_info
->account_domain
.name
.string
) {
2047 fstrcpy(domain
->name
,
2048 lsa_info
->account_domain
.name
.string
);
2051 if (lsa_info
->account_domain
.sid
) {
2052 sid_copy(&domain
->sid
, lsa_info
->account_domain
.sid
);
2058 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2059 domain
->name
, domain
->native_mode
? "" : "NOT "));
2061 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2062 domain
->name
, domain
->active_directory
? "" : "NOT "));
2064 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
2065 domain
->can_do_validation6
= domain
->active_directory
;
2069 TALLOC_FREE(mem_ctx
);
2071 domain
->initialized
= True
;
2074 /**********************************************************************
2075 Set the domain_flags (trust attributes, domain operating modes, etc...
2076 ***********************************************************************/
2078 static void set_dc_type_and_flags( struct winbindd_domain
*domain
)
2080 /* we always have to contact our primary domain */
2082 if ( domain
->primary
) {
2083 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2084 "primary domain\n"));
2085 set_dc_type_and_flags_connect( domain
);
2089 /* Use our DC to get the information if possible */
2091 if ( !set_dc_type_and_flags_trustinfo( domain
) ) {
2092 /* Otherwise, fallback to contacting the
2094 set_dc_type_and_flags_connect( domain
);
2102 /**********************************************************************
2103 ***********************************************************************/
2105 static NTSTATUS
cm_get_schannel_creds(struct winbindd_domain
*domain
,
2106 struct netlogon_creds_CredentialState
**ppdc
)
2108 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2109 struct rpc_pipe_client
*netlogon_pipe
;
2111 if (lp_client_schannel() == False
) {
2112 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2115 result
= cm_connect_netlogon(domain
, &netlogon_pipe
);
2116 if (!NT_STATUS_IS_OK(result
)) {
2120 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2123 if (!domain
->conn
.netlogon_pipe
->dc
) {
2124 return NT_STATUS_INTERNAL_ERROR
; /* This shouldn't happen. */
2127 *ppdc
= domain
->conn
.netlogon_pipe
->dc
;
2128 return NT_STATUS_OK
;
2131 NTSTATUS
cm_connect_sam(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2132 struct rpc_pipe_client
**cli
, struct policy_handle
*sam_handle
)
2134 struct winbindd_cm_conn
*conn
;
2135 NTSTATUS status
, result
;
2136 struct netlogon_creds_CredentialState
*p_creds
;
2137 char *machine_password
= NULL
;
2138 char *machine_account
= NULL
;
2139 char *domain_name
= NULL
;
2141 if (sid_check_is_domain(&domain
->sid
)) {
2142 return open_internal_samr_conn(mem_ctx
, domain
, cli
, sam_handle
);
2145 status
= init_dc_connection_rpc(domain
);
2146 if (!NT_STATUS_IS_OK(status
)) {
2150 conn
= &domain
->conn
;
2152 if (rpccli_is_connected(conn
->samr_pipe
)) {
2156 TALLOC_FREE(conn
->samr_pipe
);
2159 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2160 * sign and sealed pipe using the machine account password by
2161 * preference. If we can't - try schannel, if that fails, try
2165 if ((conn
->cli
->user_name
[0] == '\0') ||
2166 (conn
->cli
->domain
[0] == '\0') ||
2167 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0'))
2169 status
= get_trust_creds(domain
, &machine_password
,
2170 &machine_account
, NULL
);
2171 if (!NT_STATUS_IS_OK(status
)) {
2172 DEBUG(10, ("cm_connect_sam: No no user available for "
2173 "domain %s, trying schannel\n", conn
->cli
->domain
));
2176 domain_name
= domain
->name
;
2178 machine_password
= SMB_STRDUP(conn
->cli
->password
);
2179 machine_account
= SMB_STRDUP(conn
->cli
->user_name
);
2180 domain_name
= conn
->cli
->domain
;
2183 if (!machine_password
|| !machine_account
) {
2184 status
= NT_STATUS_NO_MEMORY
;
2188 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2189 authenticated SAMR pipe with sign & seal. */
2190 status
= cli_rpc_pipe_open_spnego_ntlmssp(conn
->cli
,
2191 &ndr_table_samr
.syntax_id
,
2193 DCERPC_AUTH_LEVEL_PRIVACY
,
2199 if (!NT_STATUS_IS_OK(status
)) {
2200 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2201 "pipe for domain %s using NTLMSSP "
2202 "authenticated pipe: user %s\\%s. Error was "
2203 "%s\n", domain
->name
, domain_name
,
2204 machine_account
, nt_errstr(status
)));
2208 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2209 "domain %s using NTLMSSP authenticated "
2210 "pipe: user %s\\%s\n", domain
->name
,
2211 domain_name
, machine_account
));
2213 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2214 conn
->samr_pipe
->desthost
,
2215 SEC_FLAG_MAXIMUM_ALLOWED
,
2216 &conn
->sam_connect_handle
,
2218 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2221 if (NT_STATUS_IS_OK(status
)) {
2225 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2226 "failed for domain %s, error was %s. Trying schannel\n",
2227 domain
->name
, nt_errstr(status
) ));
2228 TALLOC_FREE(conn
->samr_pipe
);
2232 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2234 status
= cm_get_schannel_creds(domain
, &p_creds
);
2235 if (!NT_STATUS_IS_OK(status
)) {
2236 /* If this call fails - conn->cli can now be NULL ! */
2237 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2238 "for domain %s (error %s), trying anon\n",
2240 nt_errstr(status
) ));
2243 status
= cli_rpc_pipe_open_schannel_with_key
2244 (conn
->cli
, &ndr_table_samr
.syntax_id
, NCACN_NP
,
2245 DCERPC_AUTH_LEVEL_PRIVACY
,
2246 domain
->name
, &p_creds
, &conn
->samr_pipe
);
2248 if (!NT_STATUS_IS_OK(status
)) {
2249 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2250 "domain %s using schannel. Error was %s\n",
2251 domain
->name
, nt_errstr(status
) ));
2254 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2255 "schannel.\n", domain
->name
));
2257 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2258 conn
->samr_pipe
->desthost
,
2259 SEC_FLAG_MAXIMUM_ALLOWED
,
2260 &conn
->sam_connect_handle
,
2262 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2265 if (NT_STATUS_IS_OK(status
)) {
2268 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2269 "for domain %s, error was %s. Trying anonymous\n",
2270 domain
->name
, nt_errstr(status
) ));
2271 TALLOC_FREE(conn
->samr_pipe
);
2275 /* Finally fall back to anonymous. */
2276 status
= cli_rpc_pipe_open_noauth(conn
->cli
, &ndr_table_samr
.syntax_id
,
2279 if (!NT_STATUS_IS_OK(status
)) {
2283 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2284 conn
->samr_pipe
->desthost
,
2285 SEC_FLAG_MAXIMUM_ALLOWED
,
2286 &conn
->sam_connect_handle
,
2288 if (!NT_STATUS_IS_OK(status
)) {
2289 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2290 "for domain %s Error was %s\n",
2291 domain
->name
, nt_errstr(status
) ));
2294 if (!NT_STATUS_IS_OK(result
)) {
2296 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2297 "for domain %s Error was %s\n",
2298 domain
->name
, nt_errstr(result
)));
2303 status
= dcerpc_samr_OpenDomain(conn
->samr_pipe
->binding_handle
,
2305 &conn
->sam_connect_handle
,
2306 SEC_FLAG_MAXIMUM_ALLOWED
,
2308 &conn
->sam_domain_handle
,
2310 if (!NT_STATUS_IS_OK(status
)) {
2317 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
2319 * if we got access denied, we might just have no access rights
2320 * to talk to the remote samr server server (e.g. when we are a
2321 * PDC and we are connecting a w2k8 pdc via an interdomain
2322 * trust). In that case do not invalidate the whole connection
2325 TALLOC_FREE(conn
->samr_pipe
);
2326 ZERO_STRUCT(conn
->sam_domain_handle
);
2328 } else if (!NT_STATUS_IS_OK(status
)) {
2329 invalidate_cm_connection(conn
);
2333 *cli
= conn
->samr_pipe
;
2334 *sam_handle
= conn
->sam_domain_handle
;
2335 SAFE_FREE(machine_password
);
2336 SAFE_FREE(machine_account
);
2340 /**********************************************************************
2341 open an schanneld ncacn_ip_tcp connection to LSA
2342 ***********************************************************************/
2344 NTSTATUS
cm_connect_lsa_tcp(struct winbindd_domain
*domain
,
2345 TALLOC_CTX
*mem_ctx
,
2346 struct rpc_pipe_client
**cli
)
2348 struct winbindd_cm_conn
*conn
;
2349 struct netlogon_creds_CredentialState
*creds
;
2352 DEBUG(10,("cm_connect_lsa_tcp\n"));
2354 status
= init_dc_connection_rpc(domain
);
2355 if (!NT_STATUS_IS_OK(status
)) {
2359 conn
= &domain
->conn
;
2361 if (conn
->lsa_pipe_tcp
&&
2362 conn
->lsa_pipe_tcp
->transport
->transport
== NCACN_IP_TCP
&&
2363 conn
->lsa_pipe_tcp
->auth
->auth_level
== DCERPC_AUTH_LEVEL_PRIVACY
&&
2364 rpccli_is_connected(conn
->lsa_pipe_tcp
)) {
2368 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2370 status
= cm_get_schannel_creds(domain
, &creds
);
2371 if (!NT_STATUS_IS_OK(status
)) {
2375 status
= cli_rpc_pipe_open_schannel_with_key(conn
->cli
,
2376 &ndr_table_lsarpc
.syntax_id
,
2378 DCERPC_AUTH_LEVEL_PRIVACY
,
2381 &conn
->lsa_pipe_tcp
);
2382 if (!NT_STATUS_IS_OK(status
)) {
2383 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2384 nt_errstr(status
)));
2389 if (!NT_STATUS_IS_OK(status
)) {
2390 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2394 *cli
= conn
->lsa_pipe_tcp
;
2399 NTSTATUS
cm_connect_lsa(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2400 struct rpc_pipe_client
**cli
, struct policy_handle
*lsa_policy
)
2402 struct winbindd_cm_conn
*conn
;
2403 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2404 struct netlogon_creds_CredentialState
*p_creds
;
2406 result
= init_dc_connection_rpc(domain
);
2407 if (!NT_STATUS_IS_OK(result
))
2410 conn
= &domain
->conn
;
2412 if (rpccli_is_connected(conn
->lsa_pipe
)) {
2416 TALLOC_FREE(conn
->lsa_pipe
);
2418 if ((conn
->cli
->user_name
[0] == '\0') ||
2419 (conn
->cli
->domain
[0] == '\0') ||
2420 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0')) {
2421 DEBUG(10, ("cm_connect_lsa: No no user available for "
2422 "domain %s, trying schannel\n", conn
->cli
->domain
));
2426 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2427 * authenticated LSA pipe with sign & seal. */
2428 result
= cli_rpc_pipe_open_spnego_ntlmssp
2429 (conn
->cli
, &ndr_table_lsarpc
.syntax_id
, NCACN_NP
,
2430 DCERPC_AUTH_LEVEL_PRIVACY
,
2431 conn
->cli
->domain
, conn
->cli
->user_name
, conn
->cli
->password
,
2434 if (!NT_STATUS_IS_OK(result
)) {
2435 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2436 "domain %s using NTLMSSP authenticated pipe: user "
2437 "%s\\%s. Error was %s. Trying schannel.\n",
2438 domain
->name
, conn
->cli
->domain
,
2439 conn
->cli
->user_name
, nt_errstr(result
)));
2443 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2444 "NTLMSSP authenticated pipe: user %s\\%s\n",
2445 domain
->name
, conn
->cli
->domain
, conn
->cli
->user_name
));
2447 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2448 SEC_FLAG_MAXIMUM_ALLOWED
,
2450 if (NT_STATUS_IS_OK(result
)) {
2454 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2457 TALLOC_FREE(conn
->lsa_pipe
);
2461 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2463 result
= cm_get_schannel_creds(domain
, &p_creds
);
2464 if (!NT_STATUS_IS_OK(result
)) {
2465 /* If this call fails - conn->cli can now be NULL ! */
2466 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2467 "for domain %s (error %s), trying anon\n",
2469 nt_errstr(result
) ));
2472 result
= cli_rpc_pipe_open_schannel_with_key
2473 (conn
->cli
, &ndr_table_lsarpc
.syntax_id
, NCACN_NP
,
2474 DCERPC_AUTH_LEVEL_PRIVACY
,
2475 domain
->name
, &p_creds
, &conn
->lsa_pipe
);
2477 if (!NT_STATUS_IS_OK(result
)) {
2478 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2479 "domain %s using schannel. Error was %s\n",
2480 domain
->name
, nt_errstr(result
) ));
2483 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2484 "schannel.\n", domain
->name
));
2486 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2487 SEC_FLAG_MAXIMUM_ALLOWED
,
2489 if (NT_STATUS_IS_OK(result
)) {
2493 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2496 TALLOC_FREE(conn
->lsa_pipe
);
2500 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2501 &ndr_table_lsarpc
.syntax_id
,
2503 if (!NT_STATUS_IS_OK(result
)) {
2504 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2508 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2509 SEC_FLAG_MAXIMUM_ALLOWED
,
2512 if (!NT_STATUS_IS_OK(result
)) {
2513 invalidate_cm_connection(conn
);
2517 *cli
= conn
->lsa_pipe
;
2518 *lsa_policy
= conn
->lsa_policy
;
2522 /****************************************************************************
2523 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2524 session key stored in conn->netlogon_pipe->dc->sess_key.
2525 ****************************************************************************/
2527 NTSTATUS
cm_connect_netlogon(struct winbindd_domain
*domain
,
2528 struct rpc_pipe_client
**cli
)
2530 struct winbindd_cm_conn
*conn
;
2533 uint32_t neg_flags
= NETLOGON_NEG_AUTH2_ADS_FLAGS
;
2535 enum netr_SchannelType sec_chan_type
;
2536 const char *account_name
;
2537 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
2541 result
= init_dc_connection_rpc(domain
);
2542 if (!NT_STATUS_IS_OK(result
)) {
2546 conn
= &domain
->conn
;
2548 if (rpccli_is_connected(conn
->netlogon_pipe
)) {
2549 *cli
= conn
->netlogon_pipe
;
2550 return NT_STATUS_OK
;
2553 TALLOC_FREE(conn
->netlogon_pipe
);
2555 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2556 &ndr_table_netlogon
.syntax_id
,
2558 if (!NT_STATUS_IS_OK(result
)) {
2562 if ((!IS_DC
) && (!domain
->primary
)) {
2563 /* Clear the schannel request bit and drop down */
2564 neg_flags
&= ~NETLOGON_NEG_SCHANNEL
;
2568 if (lp_client_schannel() != False
) {
2569 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
2572 if (!get_trust_pw_hash(domain
->name
, mach_pwd
, &account_name
,
2575 TALLOC_FREE(netlogon_pipe
);
2576 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2579 result
= rpccli_netlogon_setup_creds(
2581 domain
->dcname
, /* server name. */
2582 domain
->name
, /* domain name */
2583 lp_netbios_name(), /* client name */
2584 account_name
, /* machine account */
2585 mach_pwd
, /* machine password */
2586 sec_chan_type
, /* from get_trust_pw */
2589 if (!NT_STATUS_IS_OK(result
)) {
2590 TALLOC_FREE(netlogon_pipe
);
2594 if ((lp_client_schannel() == True
) &&
2595 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2596 DEBUG(3, ("Server did not offer schannel\n"));
2597 TALLOC_FREE(netlogon_pipe
);
2598 return NT_STATUS_ACCESS_DENIED
;
2602 if ((lp_client_schannel() == False
) ||
2603 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2605 * NetSamLogonEx only works for schannel
2607 domain
->can_do_samlogon_ex
= False
;
2609 /* We're done - just keep the existing connection to NETLOGON
2611 conn
->netlogon_pipe
= netlogon_pipe
;
2612 *cli
= conn
->netlogon_pipe
;
2613 return NT_STATUS_OK
;
2616 /* Using the credentials from the first pipe, open a signed and sealed
2617 second netlogon pipe. The session key is stored in the schannel
2618 part of the new pipe auth struct.
2621 result
= cli_rpc_pipe_open_schannel_with_key(
2622 conn
->cli
, &ndr_table_netlogon
.syntax_id
, NCACN_NP
,
2623 DCERPC_AUTH_LEVEL_PRIVACY
, domain
->name
, &netlogon_pipe
->dc
,
2624 &conn
->netlogon_pipe
);
2626 /* We can now close the initial netlogon pipe. */
2627 TALLOC_FREE(netlogon_pipe
);
2629 if (!NT_STATUS_IS_OK(result
)) {
2630 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2631 "was %s\n", nt_errstr(result
)));
2633 invalidate_cm_connection(conn
);
2638 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2639 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2640 * supported). We used to only try SamLogonEx for AD, but
2641 * Samba DCs can also do it. And because we don't distinguish
2642 * between Samba and NT4, always try it once.
2644 domain
->can_do_samlogon_ex
= true;
2646 *cli
= conn
->netlogon_pipe
;
2647 return NT_STATUS_OK
;
2650 void winbind_msg_ip_dropped(struct messaging_context
*msg_ctx
,
2653 struct server_id server_id
,
2656 struct winbindd_domain
*domain
;
2657 char *freeit
= NULL
;
2661 || (data
->data
== NULL
)
2662 || (data
->length
== 0)
2663 || (data
->data
[data
->length
-1] != '\0')) {
2664 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2669 addr
= (char *)data
->data
;
2670 DEBUG(10, ("IP %s dropped\n", addr
));
2672 if (!is_ipaddress(addr
)) {
2675 * Some code sends us ip addresses with the /netmask
2678 slash
= strchr(addr
, '/');
2679 if (slash
== NULL
) {
2680 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2684 freeit
= talloc_strndup(talloc_tos(), addr
, slash
-addr
);
2685 if (freeit
== NULL
) {
2686 DEBUG(1, ("talloc failed\n"));
2690 DEBUG(10, ("Stripped /netmask to IP %s\n", addr
));
2693 for (domain
= domain_list(); domain
!= NULL
; domain
= domain
->next
) {
2694 char sockaddr
[INET6_ADDRSTRLEN
];
2696 if (!cli_state_is_connected(domain
->conn
.cli
)) {
2700 print_sockaddr(sockaddr
, sizeof(sockaddr
),
2701 cli_state_local_sockaddr(domain
->conn
.cli
));
2703 if (strequal(sockaddr
, addr
)) {
2704 cli_state_disconnect(domain
->conn
.cli
);
2707 TALLOC_FREE(freeit
);