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"
79 #include "auth/gensec/gensec.h"
80 #include "../libcli/smb/smbXcli_base.h"
81 #include "lib/param/loadparm.h"
84 #define DBGC_CLASS DBGC_WINBIND
88 struct sockaddr_storage ss
;
91 extern struct winbindd_methods reconnect_methods
;
92 extern bool override_logfile
;
94 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
);
95 static void set_dc_type_and_flags( struct winbindd_domain
*domain
);
96 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
97 struct dc_name_ip
**dcs
, int *num_dcs
);
99 /****************************************************************
100 Child failed to find DC's. Reschedule check.
101 ****************************************************************/
103 static void msg_failed_to_go_online(struct messaging_context
*msg
,
106 struct server_id server_id
,
109 struct winbindd_domain
*domain
;
110 const char *domainname
= (const char *)data
->data
;
112 if (data
->data
== NULL
|| data
->length
== 0) {
116 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname
));
118 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
119 if (domain
->internal
) {
123 if (strequal(domain
->name
, domainname
)) {
124 if (domain
->online
) {
125 /* We're already online, ignore. */
126 DEBUG(5,("msg_fail_to_go_online: domain %s "
127 "already online.\n", domainname
));
131 /* Reschedule the online check. */
132 set_domain_offline(domain
);
138 /****************************************************************
139 Actually cause a reconnect from a message.
140 ****************************************************************/
142 static void msg_try_to_go_online(struct messaging_context
*msg
,
145 struct server_id server_id
,
148 struct winbindd_domain
*domain
;
149 const char *domainname
= (const char *)data
->data
;
151 if (data
->data
== NULL
|| data
->length
== 0) {
155 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname
));
157 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
158 if (domain
->internal
) {
162 if (strequal(domain
->name
, domainname
)) {
164 if (domain
->online
) {
165 /* We're already online, ignore. */
166 DEBUG(5,("msg_try_to_go_online: domain %s "
167 "already online.\n", domainname
));
171 /* This call takes care of setting the online
172 flag to true if we connected, or re-adding
173 the offline handler if false. Bypasses online
174 check so always does network calls. */
176 init_dc_connection_network(domain
);
182 /****************************************************************
183 Fork a child to try and contact a DC. Do this as contacting a
184 DC requires blocking lookups and we don't want to block our
186 ****************************************************************/
188 static bool fork_child_dc_connect(struct winbindd_domain
*domain
)
190 struct dc_name_ip
*dcs
= NULL
;
192 TALLOC_CTX
*mem_ctx
= NULL
;
193 pid_t parent_pid
= getpid();
197 if (domain
->dc_probe_pid
!= (pid_t
)-1) {
199 * We might already have a DC probe
200 * child working, check.
202 if (process_exists_by_pid(domain
->dc_probe_pid
)) {
203 DEBUG(10,("fork_child_dc_connect: pid %u already "
204 "checking for DC's.\n",
205 (unsigned int)domain
->dc_probe_pid
));
208 domain
->dc_probe_pid
= (pid_t
)-1;
211 domain
->dc_probe_pid
= fork();
213 if (domain
->dc_probe_pid
== (pid_t
)-1) {
214 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno
)));
218 if (domain
->dc_probe_pid
!= (pid_t
)0) {
220 messaging_register(winbind_messaging_context(), NULL
,
221 MSG_WINBIND_TRY_TO_GO_ONLINE
,
222 msg_try_to_go_online
);
223 messaging_register(winbind_messaging_context(), NULL
,
224 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
225 msg_failed_to_go_online
);
231 /* Leave messages blocked - we will never process one. */
233 if (!override_logfile
) {
234 if (asprintf(&lfile
, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
235 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
240 status
= winbindd_reinit_after_fork(NULL
, lfile
);
241 if (!NT_STATUS_IS_OK(status
)) {
242 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
244 messaging_send_buf(winbind_messaging_context(),
245 pid_to_procid(parent_pid
),
246 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
247 (uint8
*)domain
->name
,
248 strlen(domain
->name
)+1);
253 mem_ctx
= talloc_init("fork_child_dc_connect");
255 DEBUG(0,("talloc_init failed.\n"));
256 messaging_send_buf(winbind_messaging_context(),
257 pid_to_procid(parent_pid
),
258 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
259 (uint8
*)domain
->name
,
260 strlen(domain
->name
)+1);
264 if ((!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
)) || (num_dcs
== 0)) {
265 /* Still offline ? Can't find DC's. */
266 messaging_send_buf(winbind_messaging_context(),
267 pid_to_procid(parent_pid
),
268 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
269 (uint8
*)domain
->name
,
270 strlen(domain
->name
)+1);
274 /* We got a DC. Send a message to our parent to get it to
275 try and do the same. */
277 messaging_send_buf(winbind_messaging_context(),
278 pid_to_procid(parent_pid
),
279 MSG_WINBIND_TRY_TO_GO_ONLINE
,
280 (uint8
*)domain
->name
,
281 strlen(domain
->name
)+1);
285 /****************************************************************
286 Handler triggered if we're offline to try and detect a DC.
287 ****************************************************************/
289 static void check_domain_online_handler(struct event_context
*ctx
,
290 struct timed_event
*te
,
294 struct winbindd_domain
*domain
=
295 (struct winbindd_domain
*)private_data
;
297 DEBUG(10,("check_domain_online_handler: called for domain "
298 "%s (online = %s)\n", domain
->name
,
299 domain
->online
? "True" : "False" ));
301 TALLOC_FREE(domain
->check_online_event
);
303 /* Are we still in "startup" mode ? */
305 if (domain
->startup
&& (time_mono(NULL
) > domain
->startup_time
+ 30)) {
306 /* No longer in "startup" mode. */
307 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
309 domain
->startup
= False
;
312 /* We've been told to stay offline, so stay
315 if (get_global_winbindd_state_offline()) {
316 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
321 /* Fork a child to test if it can contact a DC.
322 If it can then send ourselves a message to
323 cause a reconnect. */
325 fork_child_dc_connect(domain
);
328 /****************************************************************
329 If we're still offline setup the timeout check.
330 ****************************************************************/
332 static void calc_new_online_timeout_check(struct winbindd_domain
*domain
)
334 int wbr
= lp_winbind_reconnect_delay();
336 if (domain
->startup
) {
337 domain
->check_online_timeout
= 10;
338 } else if (domain
->check_online_timeout
< wbr
) {
339 domain
->check_online_timeout
= wbr
;
343 /****************************************************************
344 Set domain offline and also add handler to put us back online
346 ****************************************************************/
348 void set_domain_offline(struct winbindd_domain
*domain
)
350 DEBUG(10,("set_domain_offline: called for domain %s\n",
353 TALLOC_FREE(domain
->check_online_event
);
355 if (domain
->internal
) {
356 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
361 domain
->online
= False
;
363 /* Offline domains are always initialized. They're
364 re-initialized when they go back online. */
366 domain
->initialized
= True
;
368 /* We only add the timeout handler that checks and
369 allows us to go back online when we've not
370 been told to remain offline. */
372 if (get_global_winbindd_state_offline()) {
373 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
378 /* If we're in startup mode, check again in 10 seconds, not in
379 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
381 calc_new_online_timeout_check(domain
);
383 domain
->check_online_event
= event_add_timed(winbind_event_context(),
385 timeval_current_ofs(domain
->check_online_timeout
,0),
386 check_domain_online_handler
,
389 /* The above *has* to succeed for winbindd to work. */
390 if (!domain
->check_online_event
) {
391 smb_panic("set_domain_offline: failed to add online handler");
394 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
397 /* Send an offline message to the idmap child when our
398 primary domain goes offline */
400 if ( domain
->primary
) {
401 struct winbindd_child
*idmap
= idmap_child();
403 if ( idmap
->pid
!= 0 ) {
404 messaging_send_buf(winbind_messaging_context(),
405 pid_to_procid(idmap
->pid
),
407 (uint8
*)domain
->name
,
408 strlen(domain
->name
)+1);
415 /****************************************************************
416 Set domain online - if allowed.
417 ****************************************************************/
419 static void set_domain_online(struct winbindd_domain
*domain
)
421 DEBUG(10,("set_domain_online: called for domain %s\n",
424 if (domain
->internal
) {
425 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
430 if (get_global_winbindd_state_offline()) {
431 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
436 winbindd_set_locator_kdc_envs(domain
);
438 /* If we are waiting to get a krb5 ticket, trigger immediately. */
439 ccache_regain_all_now();
441 /* Ok, we're out of any startup mode now... */
442 domain
->startup
= False
;
444 if (domain
->online
== False
) {
445 /* We were offline - now we're online. We default to
446 using the MS-RPC backend if we started offline,
447 and if we're going online for the first time we
448 should really re-initialize the backends and the
449 checks to see if we're talking to an AD or NT domain.
452 domain
->initialized
= False
;
454 /* 'reconnect_methods' is the MS-RPC backend. */
455 if (domain
->backend
== &reconnect_methods
) {
456 domain
->backend
= NULL
;
460 /* Ensure we have no online timeout checks. */
461 domain
->check_online_timeout
= 0;
462 TALLOC_FREE(domain
->check_online_event
);
464 /* Ensure we ignore any pending child messages. */
465 messaging_deregister(winbind_messaging_context(),
466 MSG_WINBIND_TRY_TO_GO_ONLINE
, NULL
);
467 messaging_deregister(winbind_messaging_context(),
468 MSG_WINBIND_FAILED_TO_GO_ONLINE
, NULL
);
470 domain
->online
= True
;
472 /* Send an online message to the idmap child when our
473 primary domain comes online */
475 if ( domain
->primary
) {
476 struct winbindd_child
*idmap
= idmap_child();
478 if ( idmap
->pid
!= 0 ) {
479 messaging_send_buf(winbind_messaging_context(),
480 pid_to_procid(idmap
->pid
),
482 (uint8
*)domain
->name
,
483 strlen(domain
->name
)+1);
490 /****************************************************************
491 Requested to set a domain online.
492 ****************************************************************/
494 void set_domain_online_request(struct winbindd_domain
*domain
)
498 DEBUG(10,("set_domain_online_request: called for domain %s\n",
501 if (get_global_winbindd_state_offline()) {
502 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
507 if (domain
->internal
) {
508 DEBUG(10, ("set_domain_online_request: Internal domains are "
513 /* We've been told it's safe to go online and
514 try and connect to a DC. But I don't believe it
515 because network manager seems to lie.
516 Wait at least 5 seconds. Heuristics suck... */
521 /* Go into "startup" mode again. */
522 domain
->startup_time
= time_mono(NULL
);
523 domain
->startup
= True
;
527 if (!domain
->check_online_event
) {
528 /* If we've come from being globally offline we
529 don't have a check online event handler set.
530 We need to add one now we're trying to go
533 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
537 TALLOC_FREE(domain
->check_online_event
);
539 domain
->check_online_event
= event_add_timed(winbind_event_context(),
542 check_domain_online_handler
,
545 /* The above *has* to succeed for winbindd to work. */
546 if (!domain
->check_online_event
) {
547 smb_panic("set_domain_online_request: failed to add online handler");
551 /****************************************************************
552 Add -ve connection cache entries for domain and realm.
553 ****************************************************************/
555 static void winbind_add_failed_connection_entry(
556 const struct winbindd_domain
*domain
,
560 add_failed_connection_entry(domain
->name
, server
, result
);
561 /* If this was the saf name for the last thing we talked to,
563 saf_delete(domain
->name
);
564 if (*domain
->alt_name
) {
565 add_failed_connection_entry(domain
->alt_name
, server
, result
);
566 saf_delete(domain
->alt_name
);
568 winbindd_unset_locator_kdc_env(domain
);
571 /* Choose between anonymous or authenticated connections. We need to use
572 an authenticated connection if DCs have the RestrictAnonymous registry
573 entry set > 0, or the "Additional restrictions for anonymous
574 connections" set in the win2k Local Security Policy.
576 Caller to free() result in domain, username, password
579 static void cm_get_ipc_userpass(char **username
, char **domain
, char **password
)
581 *username
= (char *)secrets_fetch(SECRETS_AUTH_USER
, NULL
);
582 *domain
= (char *)secrets_fetch(SECRETS_AUTH_DOMAIN
, NULL
);
583 *password
= (char *)secrets_fetch(SECRETS_AUTH_PASSWORD
, NULL
);
585 if (*username
&& **username
) {
587 if (!*domain
|| !**domain
)
588 *domain
= smb_xstrdup(lp_workgroup());
590 if (!*password
|| !**password
)
591 *password
= smb_xstrdup("");
593 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
594 *domain
, *username
));
597 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
598 *username
= smb_xstrdup("");
599 *domain
= smb_xstrdup("");
600 *password
= smb_xstrdup("");
604 static bool get_dc_name_via_netlogon(struct winbindd_domain
*domain
,
606 struct sockaddr_storage
*dc_ss
)
608 struct winbindd_domain
*our_domain
= NULL
;
609 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
613 unsigned int orig_timeout
;
614 const char *tmp
= NULL
;
616 struct dcerpc_binding_handle
*b
;
618 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
625 if (domain
->primary
) {
629 our_domain
= find_our_domain();
631 if ((mem_ctx
= talloc_init("get_dc_name_via_netlogon")) == NULL
) {
635 result
= cm_connect_netlogon(our_domain
, &netlogon_pipe
);
636 if (!NT_STATUS_IS_OK(result
)) {
637 talloc_destroy(mem_ctx
);
641 b
= netlogon_pipe
->binding_handle
;
643 /* This call can take a long time - allow the server to time out.
644 35 seconds should do it. */
646 orig_timeout
= rpccli_set_timeout(netlogon_pipe
, 35000);
648 if (our_domain
->active_directory
) {
649 struct netr_DsRGetDCNameInfo
*domain_info
= NULL
;
651 result
= dcerpc_netr_DsRGetDCName(b
,
660 if (NT_STATUS_IS_OK(result
) && W_ERROR_IS_OK(werr
)) {
662 mem_ctx
, domain_info
->dc_unc
);
664 DEBUG(0, ("talloc_strdup failed\n"));
665 talloc_destroy(mem_ctx
);
668 if (strlen(domain
->alt_name
) == 0) {
669 fstrcpy(domain
->alt_name
,
670 domain_info
->domain_name
);
672 if (strlen(domain
->forest_name
) == 0) {
673 fstrcpy(domain
->forest_name
,
674 domain_info
->forest_name
);
678 result
= dcerpc_netr_GetAnyDCName(b
, mem_ctx
,
685 /* And restore our original timeout. */
686 rpccli_set_timeout(netlogon_pipe
, orig_timeout
);
688 if (!NT_STATUS_IS_OK(result
)) {
689 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
691 talloc_destroy(mem_ctx
);
695 if (!W_ERROR_IS_OK(werr
)) {
696 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
698 talloc_destroy(mem_ctx
);
702 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
703 p
= strip_hostname(tmp
);
707 talloc_destroy(mem_ctx
);
709 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname
));
711 if (!resolve_name(dcname
, dc_ss
, 0x20, true)) {
719 * Helper function to assemble trust password and account name
721 static NTSTATUS
get_trust_creds(const struct winbindd_domain
*domain
,
722 char **machine_password
,
723 char **machine_account
,
724 char **machine_krb5_principal
)
726 const char *account_name
;
727 const char *name
= NULL
;
729 /* If we are a DC and this is not our own domain */
734 struct winbindd_domain
*our_domain
= find_our_domain();
737 return NT_STATUS_INVALID_SERVER_STATE
;
739 name
= our_domain
->name
;
742 if (!get_trust_pw_clear(name
, machine_password
,
743 &account_name
, NULL
))
745 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
748 if ((machine_account
!= NULL
) &&
749 (asprintf(machine_account
, "%s$", account_name
) == -1))
751 return NT_STATUS_NO_MEMORY
;
754 /* For now assume our machine account only exists in our domain */
756 if (machine_krb5_principal
!= NULL
)
758 struct winbindd_domain
*our_domain
= find_our_domain();
761 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
764 if (asprintf(machine_krb5_principal
, "%s$@%s",
765 account_name
, our_domain
->alt_name
) == -1)
767 return NT_STATUS_NO_MEMORY
;
770 if (!strupper_m(*machine_krb5_principal
)) {
771 SAFE_FREE(machine_krb5_principal
);
772 return NT_STATUS_INVALID_PARAMETER
;
779 /************************************************************************
780 Given a fd with a just-connected TCP connection to a DC, open a connection
782 ************************************************************************/
784 static NTSTATUS
cm_prepare_connection(const struct winbindd_domain
*domain
,
786 const char *controller
,
787 struct cli_state
**cli
,
790 bool try_spnego
= false;
791 bool try_ipc_auth
= false;
792 char *machine_password
= NULL
;
793 char *machine_krb5_principal
= NULL
;
794 char *machine_account
= NULL
;
795 char *ipc_username
= NULL
;
796 char *ipc_domain
= NULL
;
797 char *ipc_password
= NULL
;
799 uint16_t sec_mode
= 0;
801 struct named_mutex
*mutex
;
803 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
805 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
806 controller
, domain
->name
));
810 mutex
= grab_named_mutex(talloc_tos(), controller
,
811 WINBIND_SERVER_MUTEX_WAIT_TIME
);
814 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
816 result
= NT_STATUS_POSSIBLE_DEADLOCK
;
820 flags
|= CLI_FULL_CONNECTION_USE_KERBEROS
;
822 *cli
= cli_state_create(NULL
, sockfd
,
823 controller
, domain
->alt_name
,
824 SMB_SIGNING_DEFAULT
, flags
);
827 DEBUG(1, ("Could not cli_initialize\n"));
828 result
= NT_STATUS_NO_MEMORY
;
832 cli_set_timeout(*cli
, 10000); /* 10 seconds */
834 result
= smbXcli_negprot((*cli
)->conn
, (*cli
)->timeout
, PROTOCOL_CORE
,
837 if (!NT_STATUS_IS_OK(result
)) {
838 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result
)));
842 if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_NT1
&&
843 smb1cli_conn_capabilities((*cli
)->conn
) & CAP_EXTENDED_SECURITY
) {
845 } else if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_SMB2_02
) {
849 if (!is_dc_trusted_domain_situation(domain
->name
) && try_spnego
) {
850 result
= get_trust_creds(domain
, &machine_password
,
852 &machine_krb5_principal
);
853 if (!NT_STATUS_IS_OK(result
)) {
857 if (lp_security() == SEC_ADS
) {
859 /* Try a krb5 session */
861 (*cli
)->use_kerberos
= True
;
862 DEBUG(5, ("connecting to %s from %s with kerberos principal "
863 "[%s] and realm [%s]\n", controller
, lp_netbios_name(),
864 machine_krb5_principal
, domain
->alt_name
));
866 winbindd_set_locator_kdc_envs(domain
);
868 result
= cli_session_setup(*cli
,
869 machine_krb5_principal
,
871 strlen(machine_password
)+1,
873 strlen(machine_password
)+1,
876 if (!NT_STATUS_IS_OK(result
)) {
877 DEBUG(4,("failed kerberos session setup with %s\n",
881 if (NT_STATUS_IS_OK(result
)) {
882 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
883 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
884 if (!NT_STATUS_IS_OK(result
)) {
887 goto session_setup_done
;
891 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
892 (*cli
)->use_kerberos
= False
;
894 DEBUG(5, ("connecting to %s from %s with username "
895 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
896 lp_workgroup(), machine_account
));
898 result
= cli_session_setup(*cli
,
901 strlen(machine_password
)+1,
903 strlen(machine_password
)+1,
905 if (!NT_STATUS_IS_OK(result
)) {
906 DEBUG(4, ("authenticated session setup failed with %s\n",
910 if (NT_STATUS_IS_OK(result
)) {
911 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
912 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
913 if (!NT_STATUS_IS_OK(result
)) {
916 goto session_setup_done
;
920 /* Fall back to non-kerberos session setup with auth_user */
922 (*cli
)->use_kerberos
= False
;
924 cm_get_ipc_userpass(&ipc_username
, &ipc_domain
, &ipc_password
);
926 sec_mode
= smb1cli_conn_server_security_mode((*cli
)->conn
);
928 try_ipc_auth
= false;
931 } else if (sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) {
935 if (try_ipc_auth
&& (strlen(ipc_username
) > 0)) {
937 /* Only try authenticated if we have a username */
939 DEBUG(5, ("connecting to %s from %s with username "
940 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
941 ipc_domain
, ipc_username
));
943 if (NT_STATUS_IS_OK(cli_session_setup(
945 ipc_password
, strlen(ipc_password
)+1,
946 ipc_password
, strlen(ipc_password
)+1,
948 /* Successful logon with given username. */
949 result
= cli_init_creds(*cli
, ipc_username
, ipc_domain
, ipc_password
);
950 if (!NT_STATUS_IS_OK(result
)) {
953 goto session_setup_done
;
955 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
956 ipc_domain
, ipc_username
));
962 /* Fall back to anonymous connection, this might fail later */
963 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
964 "connection for DC %s\n",
967 result
= cli_session_setup(*cli
, "", NULL
, 0, NULL
, 0, "");
968 if (NT_STATUS_IS_OK(result
)) {
969 DEBUG(5, ("Connected anonymously\n"));
970 result
= cli_init_creds(*cli
, "", "", "");
971 if (!NT_STATUS_IS_OK(result
)) {
974 goto session_setup_done
;
977 /* We can't session setup */
982 /* cache the server name for later connections */
984 saf_store(domain
->name
, controller
);
985 if (domain
->alt_name
&& (*cli
)->use_kerberos
) {
986 saf_store(domain
->alt_name
, controller
);
989 winbindd_set_locator_kdc_envs(domain
);
991 result
= cli_tree_connect(*cli
, "IPC$", "IPC", "", 0);
993 if (!NT_STATUS_IS_OK(result
)) {
994 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result
)));
1001 /* set the domain if empty; needed for schannel connections */
1002 if ( !(*cli
)->domain
[0] ) {
1003 result
= cli_set_domain((*cli
), domain
->name
);
1004 if (!NT_STATUS_IS_OK(result
)) {
1009 result
= NT_STATUS_OK
;
1013 SAFE_FREE(machine_account
);
1014 SAFE_FREE(machine_password
);
1015 SAFE_FREE(machine_krb5_principal
);
1016 SAFE_FREE(ipc_username
);
1017 SAFE_FREE(ipc_domain
);
1018 SAFE_FREE(ipc_password
);
1020 if (!NT_STATUS_IS_OK(result
)) {
1021 winbind_add_failed_connection_entry(domain
, controller
, result
);
1022 if ((*cli
) != NULL
) {
1031 /*******************************************************************
1032 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1035 Keeps the list unique by not adding duplicate entries.
1037 @param[in] mem_ctx talloc memory context to allocate from
1038 @param[in] domain_name domain of the DC
1039 @param[in] dcname name of the DC to add to the list
1040 @param[in] pss Internet address and port pair to add to the list
1041 @param[in,out] dcs array of dc_name_ip structures to add to
1042 @param[in,out] num_dcs number of dcs returned in the dcs array
1043 @return true if the list was added to, false otherwise
1044 *******************************************************************/
1046 static bool add_one_dc_unique(TALLOC_CTX
*mem_ctx
, const char *domain_name
,
1047 const char *dcname
, struct sockaddr_storage
*pss
,
1048 struct dc_name_ip
**dcs
, int *num
)
1052 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name
, dcname
))) {
1053 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname
));
1057 /* Make sure there's no duplicates in the list */
1058 for (i
=0; i
<*num
; i
++)
1060 (struct sockaddr
*)(void *)&(*dcs
)[i
].ss
,
1061 (struct sockaddr
*)(void *)pss
))
1064 *dcs
= talloc_realloc(mem_ctx
, *dcs
, struct dc_name_ip
, (*num
)+1);
1069 fstrcpy((*dcs
)[*num
].name
, dcname
);
1070 (*dcs
)[*num
].ss
= *pss
;
1075 static bool add_sockaddr_to_array(TALLOC_CTX
*mem_ctx
,
1076 struct sockaddr_storage
*pss
, uint16 port
,
1077 struct sockaddr_storage
**addrs
, int *num
)
1079 *addrs
= talloc_realloc(mem_ctx
, *addrs
, struct sockaddr_storage
, (*num
)+1);
1081 if (*addrs
== NULL
) {
1086 (*addrs
)[*num
] = *pss
;
1087 set_sockaddr_port((struct sockaddr
*)&(*addrs
)[*num
], port
);
1093 /*******************************************************************
1094 convert an ip to a name
1095 *******************************************************************/
1097 static bool dcip_to_name(TALLOC_CTX
*mem_ctx
,
1098 const struct winbindd_domain
*domain
,
1099 struct sockaddr_storage
*pss
,
1102 struct ip_service ip_list
;
1103 uint32_t nt_version
= NETLOGON_NT_VERSION_1
;
1105 const char *dc_name
;
1111 /* For active directory servers, try to get the ldap server name.
1112 None of these failures should be considered critical for now */
1114 if (lp_security() == SEC_ADS
) {
1116 ADS_STATUS ads_status
;
1117 char addr
[INET6_ADDRSTRLEN
];
1119 print_sockaddr(addr
, sizeof(addr
), pss
);
1121 ads
= ads_init(domain
->alt_name
, domain
->name
, addr
);
1122 ads
->auth
.flags
|= ADS_AUTH_NO_BIND
;
1124 ads_status
= ads_connect(ads
);
1125 if (ADS_ERR_OK(ads_status
)) {
1126 /* We got a cldap packet. */
1127 fstrcpy(name
, ads
->config
.ldap_server_name
);
1128 namecache_store(name
, 0x20, 1, &ip_list
);
1130 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads
->config
.flags
));
1132 if (domain
->primary
&& (ads
->config
.flags
& NBT_SERVER_KDC
)) {
1133 if (ads_closest_dc(ads
)) {
1134 char *sitename
= sitename_fetch(ads
->config
.realm
);
1136 /* We're going to use this KDC for this realm/domain.
1137 If we are using sites, then force the krb5 libs
1140 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1146 SAFE_FREE(sitename
);
1148 /* use an off site KDC */
1149 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1155 winbindd_set_locator_kdc_envs(domain
);
1157 /* Ensure we contact this DC also. */
1158 saf_store( domain
->name
, name
);
1159 saf_store( domain
->alt_name
, name
);
1162 ads_destroy( &ads
);
1166 ads_destroy( &ads
);
1171 status
= nbt_getdc(winbind_messaging_context(), 10, pss
, domain
->name
,
1172 &domain
->sid
, nt_version
, mem_ctx
, &nt_version
,
1174 if (NT_STATUS_IS_OK(status
)) {
1175 fstrcpy(name
, dc_name
);
1176 namecache_store(name
, 0x20, 1, &ip_list
);
1180 /* try node status request */
1182 if ( name_status_find(domain
->name
, 0x1c, 0x20, pss
, name
) ) {
1183 namecache_store(name
, 0x20, 1, &ip_list
);
1189 /*******************************************************************
1190 Retrieve a list of IP addresses for domain controllers.
1192 The array is sorted in the preferred connection order.
1194 @param[in] mem_ctx talloc memory context to allocate from
1195 @param[in] domain domain to retrieve DCs for
1196 @param[out] dcs array of dcs that will be returned
1197 @param[out] num_dcs number of dcs returned in the dcs array
1199 *******************************************************************/
1201 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
1202 struct dc_name_ip
**dcs
, int *num_dcs
)
1205 struct sockaddr_storage ss
;
1206 struct ip_service
*ip_list
= NULL
;
1207 int iplist_size
= 0;
1210 enum security_types sec
= (enum security_types
)lp_security();
1212 is_our_domain
= strequal(domain
->name
, lp_workgroup());
1214 /* If not our domain, get the preferred DC, by asking our primary DC */
1216 && get_dc_name_via_netlogon(domain
, dcname
, &ss
)
1217 && add_one_dc_unique(mem_ctx
, domain
->name
, dcname
, &ss
, dcs
,
1220 char addr
[INET6_ADDRSTRLEN
];
1221 print_sockaddr(addr
, sizeof(addr
), &ss
);
1222 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1227 if (sec
== SEC_ADS
) {
1228 char *sitename
= NULL
;
1230 /* We need to make sure we know the local site before
1231 doing any DNS queries, as this will restrict the
1232 get_sorted_dc_list() call below to only fetching
1233 DNS records for the correct site. */
1235 /* Find any DC to get the site record.
1236 We deliberately don't care about the
1239 get_dc_name(domain
->name
, domain
->alt_name
, dcname
, &ss
);
1241 sitename
= sitename_fetch(domain
->alt_name
);
1244 /* Do the site-specific AD dns lookup first. */
1245 get_sorted_dc_list(domain
->alt_name
, sitename
, &ip_list
,
1246 &iplist_size
, True
);
1248 /* Add ips to the DC array. We don't look up the name
1249 of the DC in this function, but we fill in the char*
1250 of the ip now to make the failed connection cache
1252 for ( i
=0; i
<iplist_size
; i
++ ) {
1253 char addr
[INET6_ADDRSTRLEN
];
1254 print_sockaddr(addr
, sizeof(addr
),
1256 add_one_dc_unique(mem_ctx
,
1265 SAFE_FREE(sitename
);
1269 /* Now we add DCs from the main AD DNS lookup. */
1270 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1271 &iplist_size
, True
);
1273 for ( i
=0; i
<iplist_size
; i
++ ) {
1274 char addr
[INET6_ADDRSTRLEN
];
1275 print_sockaddr(addr
, sizeof(addr
),
1277 add_one_dc_unique(mem_ctx
,
1289 /* Try standard netbios queries if no ADS and fall back to DNS queries
1290 * if alt_name is available */
1291 if (*num_dcs
== 0) {
1292 get_sorted_dc_list(domain
->name
, NULL
, &ip_list
, &iplist_size
,
1294 if (iplist_size
== 0) {
1295 if (domain
->alt_name
!= NULL
) {
1296 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1297 &iplist_size
, true);
1301 for ( i
=0; i
<iplist_size
; i
++ ) {
1302 char addr
[INET6_ADDRSTRLEN
];
1303 print_sockaddr(addr
, sizeof(addr
),
1305 add_one_dc_unique(mem_ctx
,
1320 /*******************************************************************
1321 Find and make a connection to a DC in the given domain.
1323 @param[in] mem_ctx talloc memory context to allocate from
1324 @param[in] domain domain to find a dc in
1325 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1326 @param[out] pss DC Internet address and port
1327 @param[out] fd fd of the open socket connected to the newly found dc
1328 @return true when a DC connection is made, false otherwise
1329 *******************************************************************/
1331 static bool find_new_dc(TALLOC_CTX
*mem_ctx
,
1332 struct winbindd_domain
*domain
,
1333 fstring dcname
, struct sockaddr_storage
*pss
, int *fd
)
1335 struct dc_name_ip
*dcs
= NULL
;
1338 const char **dcnames
= NULL
;
1339 int num_dcnames
= 0;
1341 struct sockaddr_storage
*addrs
= NULL
;
1352 if (!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
) || (num_dcs
== 0))
1355 for (i
=0; i
<num_dcs
; i
++) {
1357 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1358 &dcnames
, &num_dcnames
)) {
1361 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, TCP_SMB_PORT
,
1362 &addrs
, &num_addrs
)) {
1367 if ((num_dcnames
== 0) || (num_dcnames
!= num_addrs
))
1370 if ((addrs
== NULL
) || (dcnames
== NULL
))
1373 status
= smbsock_any_connect(addrs
, dcnames
, NULL
, NULL
, NULL
,
1374 num_addrs
, 0, 10, fd
, &fd_index
, NULL
);
1375 if (!NT_STATUS_IS_OK(status
)) {
1376 for (i
=0; i
<num_dcs
; i
++) {
1377 char ab
[INET6_ADDRSTRLEN
];
1378 print_sockaddr(ab
, sizeof(ab
), &dcs
[i
].ss
);
1379 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1380 "domain %s address %s. Error was %s\n",
1381 domain
->name
, ab
, nt_errstr(status
) ));
1382 winbind_add_failed_connection_entry(domain
,
1383 dcs
[i
].name
, NT_STATUS_UNSUCCESSFUL
);
1388 *pss
= addrs
[fd_index
];
1390 if (*dcnames
[fd_index
] != '\0' && !is_ipaddress(dcnames
[fd_index
])) {
1391 /* Ok, we've got a name for the DC */
1392 fstrcpy(dcname
, dcnames
[fd_index
]);
1396 /* Try to figure out the name */
1397 if (dcip_to_name(mem_ctx
, domain
, pss
, dcname
)) {
1401 /* We can not continue without the DC's name */
1402 winbind_add_failed_connection_entry(domain
, dcs
[fd_index
].name
,
1403 NT_STATUS_UNSUCCESSFUL
);
1405 /* Throw away all arrays as we're doing this again. */
1409 TALLOC_FREE(dcnames
);
1421 static char *current_dc_key(TALLOC_CTX
*mem_ctx
, const char *domain_name
)
1423 return talloc_asprintf_strupper_m(mem_ctx
, "CURRENT_DCNAME/%s",
1427 static void store_current_dc_in_gencache(const char *domain_name
,
1428 const char *dc_name
,
1429 struct cli_state
*cli
)
1431 char addr
[INET6_ADDRSTRLEN
];
1435 if (!cli_state_is_connected(cli
)) {
1439 print_sockaddr(addr
, sizeof(addr
),
1440 smbXcli_conn_remote_sockaddr(cli
->conn
));
1442 key
= current_dc_key(talloc_tos(), domain_name
);
1447 value
= talloc_asprintf(talloc_tos(), "%s %s", addr
, dc_name
);
1448 if (value
== NULL
) {
1452 gencache_set(key
, value
, 0x7fffffff);
1458 bool fetch_current_dc_from_gencache(TALLOC_CTX
*mem_ctx
,
1459 const char *domain_name
,
1460 char **p_dc_name
, char **p_dc_ip
)
1462 char *key
, *value
, *p
;
1464 char *dc_name
= NULL
;
1467 key
= current_dc_key(talloc_tos(), domain_name
);
1471 if (!gencache_get(key
, &value
, NULL
)) {
1474 p
= strchr(value
, ' ');
1478 dc_ip
= talloc_strndup(mem_ctx
, value
, p
- value
);
1479 if (dc_ip
== NULL
) {
1482 dc_name
= talloc_strdup(mem_ctx
, p
+1);
1483 if (dc_name
== NULL
) {
1487 if (p_dc_ip
!= NULL
) {
1491 if (p_dc_name
!= NULL
) {
1492 *p_dc_name
= dc_name
;
1497 TALLOC_FREE(dc_name
);
1503 static NTSTATUS
cm_open_connection(struct winbindd_domain
*domain
,
1504 struct winbindd_cm_conn
*new_conn
)
1506 TALLOC_CTX
*mem_ctx
;
1508 char *saf_servername
= saf_fetch( domain
->name
);
1511 if ((mem_ctx
= talloc_init("cm_open_connection")) == NULL
) {
1512 SAFE_FREE(saf_servername
);
1513 set_domain_offline(domain
);
1514 return NT_STATUS_NO_MEMORY
;
1517 /* we have to check the server affinity cache here since
1518 later we select a DC based on response time and not preference */
1520 /* Check the negative connection cache
1521 before talking to it. It going down may have
1522 triggered the reconnection. */
1524 if ( saf_servername
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, saf_servername
))) {
1526 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1527 saf_servername
, domain
->name
));
1529 /* convert an ip address to a name */
1530 if (is_ipaddress( saf_servername
) ) {
1532 struct sockaddr_storage ss
;
1534 if (!interpret_string_addr(&ss
, saf_servername
,
1536 return NT_STATUS_UNSUCCESSFUL
;
1538 if (dcip_to_name(mem_ctx
, domain
, &ss
, saf_name
)) {
1539 strlcpy(domain
->dcname
, saf_name
, sizeof(domain
->dcname
));
1541 winbind_add_failed_connection_entry(
1542 domain
, saf_servername
,
1543 NT_STATUS_UNSUCCESSFUL
);
1546 fstrcpy( domain
->dcname
, saf_servername
);
1549 SAFE_FREE( saf_servername
);
1552 for (retries
= 0; retries
< 3; retries
++) {
1556 result
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1558 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1559 domain
->dcname
, domain
->name
));
1562 && NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, domain
->dcname
))
1563 && (resolve_name(domain
->dcname
, &domain
->dcaddr
, 0x20, true)))
1567 status
= smbsock_connect(&domain
->dcaddr
, 0,
1570 if (!NT_STATUS_IS_OK(status
)) {
1576 && !find_new_dc(mem_ctx
, domain
, domain
->dcname
, &domain
->dcaddr
, &fd
))
1578 /* This is the one place where we will
1579 set the global winbindd offline state
1580 to true, if a "WINBINDD_OFFLINE" entry
1581 is found in the winbindd cache. */
1582 set_global_winbindd_state_offline();
1586 new_conn
->cli
= NULL
;
1588 result
= cm_prepare_connection(domain
, fd
, domain
->dcname
,
1589 &new_conn
->cli
, &retry
);
1595 if (NT_STATUS_IS_OK(result
)) {
1597 winbindd_set_locator_kdc_envs(domain
);
1599 if (domain
->online
== False
) {
1600 /* We're changing state from offline to online. */
1601 set_global_winbindd_state_online();
1603 set_domain_online(domain
);
1606 * Much as I hate global state, this seems to be the point
1607 * where we can be certain that we have a proper connection to
1608 * a DC. wbinfo --dc-info needs that information, store it in
1609 * gencache with a looong timeout. This will need revisiting
1610 * once we start to connect to multiple DCs, wbcDcInfo is
1611 * already prepared for that.
1613 store_current_dc_in_gencache(domain
->name
, domain
->dcname
,
1616 /* Ensure we setup the retry handler. */
1617 set_domain_offline(domain
);
1620 talloc_destroy(mem_ctx
);
1624 /* Close down all open pipes on a connection. */
1626 void invalidate_cm_connection(struct winbindd_cm_conn
*conn
)
1630 /* We're closing down a possibly dead
1631 connection. Don't have impossibly long (10s) timeouts. */
1634 cli_set_timeout(conn
->cli
, 1000); /* 1 second. */
1637 if (conn
->samr_pipe
!= NULL
) {
1638 if (is_valid_policy_hnd(&conn
->sam_connect_handle
)) {
1639 dcerpc_samr_Close(conn
->samr_pipe
->binding_handle
,
1641 &conn
->sam_connect_handle
,
1644 TALLOC_FREE(conn
->samr_pipe
);
1645 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1647 cli_set_timeout(conn
->cli
, 500);
1651 if (conn
->lsa_pipe
!= NULL
) {
1652 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1653 dcerpc_lsa_Close(conn
->lsa_pipe
->binding_handle
,
1658 TALLOC_FREE(conn
->lsa_pipe
);
1659 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1661 cli_set_timeout(conn
->cli
, 500);
1665 if (conn
->lsa_pipe_tcp
!= NULL
) {
1666 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1667 dcerpc_lsa_Close(conn
->lsa_pipe_tcp
->binding_handle
,
1672 TALLOC_FREE(conn
->lsa_pipe_tcp
);
1673 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1675 cli_set_timeout(conn
->cli
, 500);
1679 if (conn
->netlogon_pipe
!= NULL
) {
1680 TALLOC_FREE(conn
->netlogon_pipe
);
1681 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1683 cli_set_timeout(conn
->cli
, 500);
1688 cli_shutdown(conn
->cli
);
1694 void close_conns_after_fork(void)
1696 struct winbindd_domain
*domain
;
1697 struct winbindd_cli_state
*cli_state
;
1699 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
1701 * first close the low level SMB TCP connection
1702 * so that we don't generate any SMBclose
1703 * requests in invalidate_cm_connection()
1705 if (cli_state_is_connected(domain
->conn
.cli
)) {
1706 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
1709 invalidate_cm_connection(&domain
->conn
);
1712 for (cli_state
= winbindd_client_list();
1714 cli_state
= cli_state
->next
) {
1715 if (cli_state
->sock
>= 0) {
1716 close(cli_state
->sock
);
1717 cli_state
->sock
= -1;
1722 static bool connection_ok(struct winbindd_domain
*domain
)
1726 ok
= cli_state_is_connected(domain
->conn
.cli
);
1728 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1729 domain
->dcname
, domain
->name
));
1733 if (domain
->online
== False
) {
1734 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain
->name
));
1741 /* Initialize a new connection up to the RPC BIND.
1742 Bypass online status check so always does network calls. */
1744 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
)
1748 /* Internal connections never use the network. */
1749 if (domain
->internal
) {
1750 domain
->initialized
= True
;
1751 return NT_STATUS_OK
;
1754 if (connection_ok(domain
)) {
1755 if (!domain
->initialized
) {
1756 set_dc_type_and_flags(domain
);
1758 return NT_STATUS_OK
;
1761 invalidate_cm_connection(&domain
->conn
);
1763 result
= cm_open_connection(domain
, &domain
->conn
);
1765 if (NT_STATUS_IS_OK(result
) && !domain
->initialized
) {
1766 set_dc_type_and_flags(domain
);
1772 NTSTATUS
init_dc_connection(struct winbindd_domain
*domain
)
1774 if (domain
->internal
) {
1775 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
1778 if (domain
->initialized
&& !domain
->online
) {
1779 /* We check for online status elsewhere. */
1780 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1783 return init_dc_connection_network(domain
);
1786 static NTSTATUS
init_dc_connection_rpc(struct winbindd_domain
*domain
)
1790 status
= init_dc_connection(domain
);
1791 if (!NT_STATUS_IS_OK(status
)) {
1795 if (!domain
->internal
&& domain
->conn
.cli
== NULL
) {
1796 /* happens for trusted domains without inbound trust */
1797 return NT_STATUS_TRUSTED_DOMAIN_FAILURE
;
1800 return NT_STATUS_OK
;
1803 /******************************************************************************
1804 Set the trust flags (direction and forest location) for a domain
1805 ******************************************************************************/
1807 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain
*domain
)
1809 struct winbindd_domain
*our_domain
;
1810 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1812 struct netr_DomainTrustList trusts
;
1814 uint32 flags
= (NETR_TRUST_FLAG_IN_FOREST
|
1815 NETR_TRUST_FLAG_OUTBOUND
|
1816 NETR_TRUST_FLAG_INBOUND
);
1817 struct rpc_pipe_client
*cli
;
1818 TALLOC_CTX
*mem_ctx
= NULL
;
1819 struct dcerpc_binding_handle
*b
;
1821 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain
->name
));
1823 /* Our primary domain doesn't need to worry about trust flags.
1824 Force it to go through the network setup */
1825 if ( domain
->primary
) {
1829 our_domain
= find_our_domain();
1831 if ( !connection_ok(our_domain
) ) {
1832 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1836 /* This won't work unless our domain is AD */
1838 if ( !our_domain
->active_directory
) {
1842 /* Use DsEnumerateDomainTrusts to get us the trust direction
1845 result
= cm_connect_netlogon(our_domain
, &cli
);
1847 if (!NT_STATUS_IS_OK(result
)) {
1848 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1849 "a connection to %s for PIPE_NETLOGON (%s)\n",
1850 domain
->name
, nt_errstr(result
)));
1854 b
= cli
->binding_handle
;
1856 if ( (mem_ctx
= talloc_init("set_dc_type_and_flags_trustinfo")) == NULL
) {
1857 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1861 result
= dcerpc_netr_DsrEnumerateDomainTrusts(b
, mem_ctx
,
1866 if (!NT_STATUS_IS_OK(result
)) {
1867 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1868 "failed to query trusted domain list: %s\n",
1869 nt_errstr(result
)));
1870 talloc_destroy(mem_ctx
);
1873 if (!W_ERROR_IS_OK(werr
)) {
1874 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1875 "failed to query trusted domain list: %s\n",
1877 talloc_destroy(mem_ctx
);
1881 /* Now find the domain name and get the flags */
1883 for ( i
=0; i
<trusts
.count
; i
++ ) {
1884 if ( strequal( domain
->name
, trusts
.array
[i
].netbios_name
) ) {
1885 domain
->domain_flags
= trusts
.array
[i
].trust_flags
;
1886 domain
->domain_type
= trusts
.array
[i
].trust_type
;
1887 domain
->domain_trust_attribs
= trusts
.array
[i
].trust_attributes
;
1889 if ( domain
->domain_type
== NETR_TRUST_TYPE_UPLEVEL
)
1890 domain
->active_directory
= True
;
1892 /* This flag is only set if the domain is *our*
1893 primary domain and the primary domain is in
1896 domain
->native_mode
= (domain
->domain_flags
& NETR_TRUST_FLAG_NATIVE
);
1898 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1899 "native mode.\n", domain
->name
,
1900 domain
->native_mode
? "" : "NOT "));
1902 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1903 "running active directory.\n", domain
->name
,
1904 domain
->active_directory
? "" : "NOT "));
1906 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
1907 domain
->can_do_validation6
= domain
->active_directory
;
1909 domain
->initialized
= True
;
1915 talloc_destroy( mem_ctx
);
1917 return domain
->initialized
;
1920 /******************************************************************************
1921 We can 'sense' certain things about the DC by it's replies to certain
1924 This tells us if this particular remote server is Active Directory, and if it
1926 ******************************************************************************/
1928 static void set_dc_type_and_flags_connect( struct winbindd_domain
*domain
)
1930 NTSTATUS status
, result
;
1932 TALLOC_CTX
*mem_ctx
= NULL
;
1933 struct rpc_pipe_client
*cli
= NULL
;
1934 struct policy_handle pol
;
1935 union dssetup_DsRoleInfo info
;
1936 union lsa_PolicyInformation
*lsa_info
= NULL
;
1938 if (!connection_ok(domain
)) {
1942 mem_ctx
= talloc_init("set_dc_type_and_flags on domain %s\n",
1945 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1949 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain
->name
));
1951 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
1952 &ndr_table_dssetup
.syntax_id
,
1955 if (!NT_STATUS_IS_OK(status
)) {
1956 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1957 "PI_DSSETUP on domain %s: (%s)\n",
1958 domain
->name
, nt_errstr(status
)));
1960 /* if this is just a non-AD domain we need to continue
1961 * identifying so that we can in the end return with
1962 * domain->initialized = True - gd */
1967 status
= dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli
->binding_handle
, mem_ctx
,
1968 DS_ROLE_BASIC_INFORMATION
,
1973 if (NT_STATUS_IS_OK(status
)) {
1974 result
= werror_to_ntstatus(werr
);
1976 if (!NT_STATUS_IS_OK(status
)) {
1977 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1978 "on domain %s failed: (%s)\n",
1979 domain
->name
, nt_errstr(status
)));
1981 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1982 * every opcode on the DSSETUP pipe, continue with
1983 * no_dssetup mode here as well to get domain->initialized
1986 if (NT_STATUS_EQUAL(status
, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
)) {
1990 TALLOC_FREE(mem_ctx
);
1994 if ((info
.basic
.flags
& DS_ROLE_PRIMARY_DS_RUNNING
) &&
1995 !(info
.basic
.flags
& DS_ROLE_PRIMARY_DS_MIXED_MODE
)) {
1996 domain
->native_mode
= True
;
1998 domain
->native_mode
= False
;
2002 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
2003 &ndr_table_lsarpc
.syntax_id
, &cli
);
2005 if (!NT_STATUS_IS_OK(status
)) {
2006 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2007 "PI_LSARPC on domain %s: (%s)\n",
2008 domain
->name
, nt_errstr(status
)));
2010 TALLOC_FREE(mem_ctx
);
2014 status
= rpccli_lsa_open_policy2(cli
, mem_ctx
, True
,
2015 SEC_FLAG_MAXIMUM_ALLOWED
, &pol
);
2017 if (NT_STATUS_IS_OK(status
)) {
2018 /* This particular query is exactly what Win2k clients use
2019 to determine that the DC is active directory */
2020 status
= dcerpc_lsa_QueryInfoPolicy2(cli
->binding_handle
, mem_ctx
,
2022 LSA_POLICY_INFO_DNS
,
2027 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2028 domain
->active_directory
= True
;
2030 if (lsa_info
->dns
.name
.string
) {
2031 fstrcpy(domain
->name
, lsa_info
->dns
.name
.string
);
2034 if (lsa_info
->dns
.dns_domain
.string
) {
2035 fstrcpy(domain
->alt_name
,
2036 lsa_info
->dns
.dns_domain
.string
);
2039 /* See if we can set some domain trust flags about
2042 if (lsa_info
->dns
.dns_forest
.string
) {
2043 fstrcpy(domain
->forest_name
,
2044 lsa_info
->dns
.dns_forest
.string
);
2046 if (strequal(domain
->forest_name
, domain
->alt_name
)) {
2047 domain
->domain_flags
|= NETR_TRUST_FLAG_TREEROOT
;
2051 if (lsa_info
->dns
.sid
) {
2052 sid_copy(&domain
->sid
, lsa_info
->dns
.sid
);
2055 domain
->active_directory
= False
;
2057 status
= rpccli_lsa_open_policy(cli
, mem_ctx
, True
,
2058 SEC_FLAG_MAXIMUM_ALLOWED
,
2061 if (!NT_STATUS_IS_OK(status
)) {
2065 status
= dcerpc_lsa_QueryInfoPolicy(cli
->binding_handle
, mem_ctx
,
2067 LSA_POLICY_INFO_ACCOUNT_DOMAIN
,
2070 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2072 if (lsa_info
->account_domain
.name
.string
) {
2073 fstrcpy(domain
->name
,
2074 lsa_info
->account_domain
.name
.string
);
2077 if (lsa_info
->account_domain
.sid
) {
2078 sid_copy(&domain
->sid
, lsa_info
->account_domain
.sid
);
2084 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2085 domain
->name
, domain
->native_mode
? "" : "NOT "));
2087 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2088 domain
->name
, domain
->active_directory
? "" : "NOT "));
2090 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
2091 domain
->can_do_validation6
= domain
->active_directory
;
2095 TALLOC_FREE(mem_ctx
);
2097 domain
->initialized
= True
;
2100 /**********************************************************************
2101 Set the domain_flags (trust attributes, domain operating modes, etc...
2102 ***********************************************************************/
2104 static void set_dc_type_and_flags( struct winbindd_domain
*domain
)
2106 /* we always have to contact our primary domain */
2108 if ( domain
->primary
) {
2109 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2110 "primary domain\n"));
2111 set_dc_type_and_flags_connect( domain
);
2115 /* Use our DC to get the information if possible */
2117 if ( !set_dc_type_and_flags_trustinfo( domain
) ) {
2118 /* Otherwise, fallback to contacting the
2120 set_dc_type_and_flags_connect( domain
);
2128 /**********************************************************************
2129 ***********************************************************************/
2131 static NTSTATUS
cm_get_schannel_creds(struct winbindd_domain
*domain
,
2132 struct netlogon_creds_CredentialState
**ppdc
)
2134 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2135 struct rpc_pipe_client
*netlogon_pipe
;
2137 if (lp_client_schannel() == False
) {
2138 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2141 result
= cm_connect_netlogon(domain
, &netlogon_pipe
);
2142 if (!NT_STATUS_IS_OK(result
)) {
2146 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2149 if (!domain
->conn
.netlogon_pipe
->dc
) {
2150 return NT_STATUS_INTERNAL_ERROR
; /* This shouldn't happen. */
2153 *ppdc
= domain
->conn
.netlogon_pipe
->dc
;
2154 return NT_STATUS_OK
;
2157 NTSTATUS
cm_connect_sam(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2158 struct rpc_pipe_client
**cli
, struct policy_handle
*sam_handle
)
2160 struct winbindd_cm_conn
*conn
;
2161 NTSTATUS status
, result
;
2162 struct netlogon_creds_CredentialState
*p_creds
;
2163 char *machine_password
= NULL
;
2164 char *machine_account
= NULL
;
2165 char *domain_name
= NULL
;
2167 if (sid_check_is_our_sam(&domain
->sid
)) {
2168 return open_internal_samr_conn(mem_ctx
, domain
, cli
, sam_handle
);
2171 status
= init_dc_connection_rpc(domain
);
2172 if (!NT_STATUS_IS_OK(status
)) {
2176 conn
= &domain
->conn
;
2178 if (rpccli_is_connected(conn
->samr_pipe
)) {
2182 TALLOC_FREE(conn
->samr_pipe
);
2185 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2186 * sign and sealed pipe using the machine account password by
2187 * preference. If we can't - try schannel, if that fails, try
2191 if ((conn
->cli
->user_name
[0] == '\0') ||
2192 (conn
->cli
->domain
[0] == '\0') ||
2193 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0'))
2195 status
= get_trust_creds(domain
, &machine_password
,
2196 &machine_account
, NULL
);
2197 if (!NT_STATUS_IS_OK(status
)) {
2198 DEBUG(10, ("cm_connect_sam: No no user available for "
2199 "domain %s, trying schannel\n", conn
->cli
->domain
));
2202 domain_name
= domain
->name
;
2204 machine_password
= SMB_STRDUP(conn
->cli
->password
);
2205 machine_account
= SMB_STRDUP(conn
->cli
->user_name
);
2206 domain_name
= conn
->cli
->domain
;
2209 if (!machine_password
|| !machine_account
) {
2210 status
= NT_STATUS_NO_MEMORY
;
2214 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2215 authenticated SAMR pipe with sign & seal. */
2216 status
= cli_rpc_pipe_open_spnego(conn
->cli
,
2220 DCERPC_AUTH_LEVEL_PRIVACY
,
2221 smbXcli_conn_remote_name(conn
->cli
->conn
),
2227 if (!NT_STATUS_IS_OK(status
)) {
2228 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2229 "pipe for domain %s using NTLMSSP "
2230 "authenticated pipe: user %s\\%s. Error was "
2231 "%s\n", domain
->name
, domain_name
,
2232 machine_account
, nt_errstr(status
)));
2236 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2237 "domain %s using NTLMSSP authenticated "
2238 "pipe: user %s\\%s\n", domain
->name
,
2239 domain_name
, machine_account
));
2241 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2242 conn
->samr_pipe
->desthost
,
2243 SEC_FLAG_MAXIMUM_ALLOWED
,
2244 &conn
->sam_connect_handle
,
2246 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2249 if (NT_STATUS_IS_OK(status
)) {
2253 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2254 "failed for domain %s, error was %s. Trying schannel\n",
2255 domain
->name
, nt_errstr(status
) ));
2256 TALLOC_FREE(conn
->samr_pipe
);
2260 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2262 status
= cm_get_schannel_creds(domain
, &p_creds
);
2263 if (!NT_STATUS_IS_OK(status
)) {
2264 /* If this call fails - conn->cli can now be NULL ! */
2265 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2266 "for domain %s (error %s), trying anon\n",
2268 nt_errstr(status
) ));
2271 status
= cli_rpc_pipe_open_schannel_with_key
2272 (conn
->cli
, &ndr_table_samr
.syntax_id
, NCACN_NP
,
2273 DCERPC_AUTH_LEVEL_PRIVACY
,
2274 domain
->name
, &p_creds
, &conn
->samr_pipe
);
2276 if (!NT_STATUS_IS_OK(status
)) {
2277 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2278 "domain %s using schannel. Error was %s\n",
2279 domain
->name
, nt_errstr(status
) ));
2282 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2283 "schannel.\n", domain
->name
));
2285 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2286 conn
->samr_pipe
->desthost
,
2287 SEC_FLAG_MAXIMUM_ALLOWED
,
2288 &conn
->sam_connect_handle
,
2290 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2293 if (NT_STATUS_IS_OK(status
)) {
2296 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2297 "for domain %s, error was %s. Trying anonymous\n",
2298 domain
->name
, nt_errstr(status
) ));
2299 TALLOC_FREE(conn
->samr_pipe
);
2303 /* Finally fall back to anonymous. */
2304 status
= cli_rpc_pipe_open_noauth(conn
->cli
, &ndr_table_samr
.syntax_id
,
2307 if (!NT_STATUS_IS_OK(status
)) {
2311 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2312 conn
->samr_pipe
->desthost
,
2313 SEC_FLAG_MAXIMUM_ALLOWED
,
2314 &conn
->sam_connect_handle
,
2316 if (!NT_STATUS_IS_OK(status
)) {
2317 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2318 "for domain %s Error was %s\n",
2319 domain
->name
, nt_errstr(status
) ));
2322 if (!NT_STATUS_IS_OK(result
)) {
2324 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2325 "for domain %s Error was %s\n",
2326 domain
->name
, nt_errstr(result
)));
2331 status
= dcerpc_samr_OpenDomain(conn
->samr_pipe
->binding_handle
,
2333 &conn
->sam_connect_handle
,
2334 SEC_FLAG_MAXIMUM_ALLOWED
,
2336 &conn
->sam_domain_handle
,
2338 if (!NT_STATUS_IS_OK(status
)) {
2345 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
2347 * if we got access denied, we might just have no access rights
2348 * to talk to the remote samr server server (e.g. when we are a
2349 * PDC and we are connecting a w2k8 pdc via an interdomain
2350 * trust). In that case do not invalidate the whole connection
2353 TALLOC_FREE(conn
->samr_pipe
);
2354 ZERO_STRUCT(conn
->sam_domain_handle
);
2356 } else if (!NT_STATUS_IS_OK(status
)) {
2357 invalidate_cm_connection(conn
);
2361 *cli
= conn
->samr_pipe
;
2362 *sam_handle
= conn
->sam_domain_handle
;
2363 SAFE_FREE(machine_password
);
2364 SAFE_FREE(machine_account
);
2368 /**********************************************************************
2369 open an schanneld ncacn_ip_tcp connection to LSA
2370 ***********************************************************************/
2372 NTSTATUS
cm_connect_lsa_tcp(struct winbindd_domain
*domain
,
2373 TALLOC_CTX
*mem_ctx
,
2374 struct rpc_pipe_client
**cli
)
2376 struct winbindd_cm_conn
*conn
;
2377 struct netlogon_creds_CredentialState
*creds
;
2380 DEBUG(10,("cm_connect_lsa_tcp\n"));
2382 status
= init_dc_connection_rpc(domain
);
2383 if (!NT_STATUS_IS_OK(status
)) {
2387 conn
= &domain
->conn
;
2389 if (conn
->lsa_pipe_tcp
&&
2390 conn
->lsa_pipe_tcp
->transport
->transport
== NCACN_IP_TCP
&&
2391 conn
->lsa_pipe_tcp
->auth
->auth_level
== DCERPC_AUTH_LEVEL_PRIVACY
&&
2392 rpccli_is_connected(conn
->lsa_pipe_tcp
)) {
2396 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2398 status
= cm_get_schannel_creds(domain
, &creds
);
2399 if (!NT_STATUS_IS_OK(status
)) {
2403 status
= cli_rpc_pipe_open_schannel_with_key(conn
->cli
,
2404 &ndr_table_lsarpc
.syntax_id
,
2406 DCERPC_AUTH_LEVEL_PRIVACY
,
2409 &conn
->lsa_pipe_tcp
);
2410 if (!NT_STATUS_IS_OK(status
)) {
2411 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2412 nt_errstr(status
)));
2417 if (!NT_STATUS_IS_OK(status
)) {
2418 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2422 *cli
= conn
->lsa_pipe_tcp
;
2427 NTSTATUS
cm_connect_lsa(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2428 struct rpc_pipe_client
**cli
, struct policy_handle
*lsa_policy
)
2430 struct winbindd_cm_conn
*conn
;
2431 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2432 struct netlogon_creds_CredentialState
*p_creds
;
2434 result
= init_dc_connection_rpc(domain
);
2435 if (!NT_STATUS_IS_OK(result
))
2438 conn
= &domain
->conn
;
2440 if (rpccli_is_connected(conn
->lsa_pipe
)) {
2444 TALLOC_FREE(conn
->lsa_pipe
);
2446 if ((conn
->cli
->user_name
[0] == '\0') ||
2447 (conn
->cli
->domain
[0] == '\0') ||
2448 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0')) {
2449 DEBUG(10, ("cm_connect_lsa: No no user available for "
2450 "domain %s, trying schannel\n", conn
->cli
->domain
));
2454 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2455 * authenticated LSA pipe with sign & seal. */
2456 result
= cli_rpc_pipe_open_spnego
2457 (conn
->cli
, &ndr_table_lsarpc
, NCACN_NP
,
2459 DCERPC_AUTH_LEVEL_PRIVACY
,
2460 smbXcli_conn_remote_name(conn
->cli
->conn
),
2461 conn
->cli
->domain
, conn
->cli
->user_name
, conn
->cli
->password
,
2464 if (!NT_STATUS_IS_OK(result
)) {
2465 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2466 "domain %s using NTLMSSP authenticated pipe: user "
2467 "%s\\%s. Error was %s. Trying schannel.\n",
2468 domain
->name
, conn
->cli
->domain
,
2469 conn
->cli
->user_name
, nt_errstr(result
)));
2473 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2474 "NTLMSSP authenticated pipe: user %s\\%s\n",
2475 domain
->name
, conn
->cli
->domain
, conn
->cli
->user_name
));
2477 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2478 SEC_FLAG_MAXIMUM_ALLOWED
,
2480 if (NT_STATUS_IS_OK(result
)) {
2484 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2487 TALLOC_FREE(conn
->lsa_pipe
);
2491 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2493 result
= cm_get_schannel_creds(domain
, &p_creds
);
2494 if (!NT_STATUS_IS_OK(result
)) {
2495 /* If this call fails - conn->cli can now be NULL ! */
2496 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2497 "for domain %s (error %s), trying anon\n",
2499 nt_errstr(result
) ));
2502 result
= cli_rpc_pipe_open_schannel_with_key
2503 (conn
->cli
, &ndr_table_lsarpc
.syntax_id
, NCACN_NP
,
2504 DCERPC_AUTH_LEVEL_PRIVACY
,
2505 domain
->name
, &p_creds
, &conn
->lsa_pipe
);
2507 if (!NT_STATUS_IS_OK(result
)) {
2508 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2509 "domain %s using schannel. Error was %s\n",
2510 domain
->name
, nt_errstr(result
) ));
2513 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2514 "schannel.\n", domain
->name
));
2516 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2517 SEC_FLAG_MAXIMUM_ALLOWED
,
2519 if (NT_STATUS_IS_OK(result
)) {
2523 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2526 TALLOC_FREE(conn
->lsa_pipe
);
2530 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2531 &ndr_table_lsarpc
.syntax_id
,
2533 if (!NT_STATUS_IS_OK(result
)) {
2534 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2538 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2539 SEC_FLAG_MAXIMUM_ALLOWED
,
2542 if (!NT_STATUS_IS_OK(result
)) {
2543 invalidate_cm_connection(conn
);
2547 *cli
= conn
->lsa_pipe
;
2548 *lsa_policy
= conn
->lsa_policy
;
2552 /****************************************************************************
2553 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2554 session key stored in conn->netlogon_pipe->dc->sess_key.
2555 ****************************************************************************/
2557 NTSTATUS
cm_connect_netlogon(struct winbindd_domain
*domain
,
2558 struct rpc_pipe_client
**cli
)
2560 struct winbindd_cm_conn
*conn
;
2563 uint32_t neg_flags
= NETLOGON_NEG_AUTH2_ADS_FLAGS
| NETLOGON_NEG_SUPPORTS_AES
;
2565 enum netr_SchannelType sec_chan_type
;
2566 const char *account_name
;
2567 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
2571 result
= init_dc_connection_rpc(domain
);
2572 if (!NT_STATUS_IS_OK(result
)) {
2576 conn
= &domain
->conn
;
2578 if (rpccli_is_connected(conn
->netlogon_pipe
)) {
2579 *cli
= conn
->netlogon_pipe
;
2580 return NT_STATUS_OK
;
2583 TALLOC_FREE(conn
->netlogon_pipe
);
2585 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2586 &ndr_table_netlogon
.syntax_id
,
2588 if (!NT_STATUS_IS_OK(result
)) {
2592 if ((!IS_DC
) && (!domain
->primary
)) {
2593 /* Clear the schannel request bit and drop down */
2594 neg_flags
&= ~NETLOGON_NEG_SCHANNEL
;
2598 if (lp_client_schannel() != False
) {
2599 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
2602 if (!get_trust_pw_hash(domain
->name
, mach_pwd
, &account_name
,
2605 TALLOC_FREE(netlogon_pipe
);
2606 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2609 result
= rpccli_netlogon_setup_creds(
2611 domain
->dcname
, /* server name. */
2612 domain
->name
, /* domain name */
2613 lp_netbios_name(), /* client name */
2614 account_name
, /* machine account */
2615 mach_pwd
, /* machine password */
2616 sec_chan_type
, /* from get_trust_pw */
2619 if (!NT_STATUS_IS_OK(result
)) {
2620 TALLOC_FREE(netlogon_pipe
);
2624 if ((lp_client_schannel() == True
) &&
2625 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2626 DEBUG(3, ("Server did not offer schannel\n"));
2627 TALLOC_FREE(netlogon_pipe
);
2628 return NT_STATUS_ACCESS_DENIED
;
2632 if ((lp_client_schannel() == False
) ||
2633 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2635 * NetSamLogonEx only works for schannel
2637 domain
->can_do_samlogon_ex
= False
;
2639 /* We're done - just keep the existing connection to NETLOGON
2641 conn
->netlogon_pipe
= netlogon_pipe
;
2642 *cli
= conn
->netlogon_pipe
;
2643 return NT_STATUS_OK
;
2646 /* Using the credentials from the first pipe, open a signed and sealed
2647 second netlogon pipe. The session key is stored in the schannel
2648 part of the new pipe auth struct.
2651 result
= cli_rpc_pipe_open_schannel_with_key(
2652 conn
->cli
, &ndr_table_netlogon
.syntax_id
, NCACN_NP
,
2653 DCERPC_AUTH_LEVEL_PRIVACY
, domain
->name
, &netlogon_pipe
->dc
,
2654 &conn
->netlogon_pipe
);
2656 /* We can now close the initial netlogon pipe. */
2657 TALLOC_FREE(netlogon_pipe
);
2659 if (!NT_STATUS_IS_OK(result
)) {
2660 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2661 "was %s\n", nt_errstr(result
)));
2663 invalidate_cm_connection(conn
);
2668 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2669 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2670 * supported). We used to only try SamLogonEx for AD, but
2671 * Samba DCs can also do it. And because we don't distinguish
2672 * between Samba and NT4, always try it once.
2674 domain
->can_do_samlogon_ex
= true;
2676 *cli
= conn
->netlogon_pipe
;
2677 return NT_STATUS_OK
;
2680 void winbind_msg_ip_dropped(struct messaging_context
*msg_ctx
,
2683 struct server_id server_id
,
2686 struct winbindd_domain
*domain
;
2687 char *freeit
= NULL
;
2691 || (data
->data
== NULL
)
2692 || (data
->length
== 0)
2693 || (data
->data
[data
->length
-1] != '\0')) {
2694 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2699 addr
= (char *)data
->data
;
2700 DEBUG(10, ("IP %s dropped\n", addr
));
2702 if (!is_ipaddress(addr
)) {
2705 * Some code sends us ip addresses with the /netmask
2708 slash
= strchr(addr
, '/');
2709 if (slash
== NULL
) {
2710 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2714 freeit
= talloc_strndup(talloc_tos(), addr
, slash
-addr
);
2715 if (freeit
== NULL
) {
2716 DEBUG(1, ("talloc failed\n"));
2720 DEBUG(10, ("Stripped /netmask to IP %s\n", addr
));
2723 for (domain
= domain_list(); domain
!= NULL
; domain
= domain
->next
) {
2724 char sockaddr
[INET6_ADDRSTRLEN
];
2726 if (!cli_state_is_connected(domain
->conn
.cli
)) {
2730 print_sockaddr(sockaddr
, sizeof(sockaddr
),
2731 smbXcli_conn_local_sockaddr(domain
->conn
.cli
->conn
));
2733 if (strequal(sockaddr
, addr
)) {
2734 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
2737 TALLOC_FREE(freeit
);