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 */
983 * This should be a short term hack until
984 * dynamic re-authentication is implemented.
986 * See Bug 9175 - winbindd doesn't recover from
987 * NT_STATUS_NETWORK_SESSION_EXPIRED
989 if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_SMB2_02
) {
990 smbXcli_session_set_disconnect_expired((*cli
)->smb2
.session
);
993 /* cache the server name for later connections */
995 saf_store(domain
->name
, controller
);
996 if (domain
->alt_name
&& (*cli
)->use_kerberos
) {
997 saf_store(domain
->alt_name
, controller
);
1000 winbindd_set_locator_kdc_envs(domain
);
1002 result
= cli_tree_connect(*cli
, "IPC$", "IPC", "", 0);
1004 if (!NT_STATUS_IS_OK(result
)) {
1005 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result
)));
1012 /* set the domain if empty; needed for schannel connections */
1013 if ( !(*cli
)->domain
[0] ) {
1014 result
= cli_set_domain((*cli
), domain
->name
);
1015 if (!NT_STATUS_IS_OK(result
)) {
1020 result
= NT_STATUS_OK
;
1024 SAFE_FREE(machine_account
);
1025 SAFE_FREE(machine_password
);
1026 SAFE_FREE(machine_krb5_principal
);
1027 SAFE_FREE(ipc_username
);
1028 SAFE_FREE(ipc_domain
);
1029 SAFE_FREE(ipc_password
);
1031 if (!NT_STATUS_IS_OK(result
)) {
1032 winbind_add_failed_connection_entry(domain
, controller
, result
);
1033 if ((*cli
) != NULL
) {
1042 /*******************************************************************
1043 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1046 Keeps the list unique by not adding duplicate entries.
1048 @param[in] mem_ctx talloc memory context to allocate from
1049 @param[in] domain_name domain of the DC
1050 @param[in] dcname name of the DC to add to the list
1051 @param[in] pss Internet address and port pair to add to the list
1052 @param[in,out] dcs array of dc_name_ip structures to add to
1053 @param[in,out] num_dcs number of dcs returned in the dcs array
1054 @return true if the list was added to, false otherwise
1055 *******************************************************************/
1057 static bool add_one_dc_unique(TALLOC_CTX
*mem_ctx
, const char *domain_name
,
1058 const char *dcname
, struct sockaddr_storage
*pss
,
1059 struct dc_name_ip
**dcs
, int *num
)
1063 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name
, dcname
))) {
1064 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname
));
1068 /* Make sure there's no duplicates in the list */
1069 for (i
=0; i
<*num
; i
++)
1071 (struct sockaddr
*)(void *)&(*dcs
)[i
].ss
,
1072 (struct sockaddr
*)(void *)pss
))
1075 *dcs
= talloc_realloc(mem_ctx
, *dcs
, struct dc_name_ip
, (*num
)+1);
1080 fstrcpy((*dcs
)[*num
].name
, dcname
);
1081 (*dcs
)[*num
].ss
= *pss
;
1086 static bool add_sockaddr_to_array(TALLOC_CTX
*mem_ctx
,
1087 struct sockaddr_storage
*pss
, uint16 port
,
1088 struct sockaddr_storage
**addrs
, int *num
)
1090 *addrs
= talloc_realloc(mem_ctx
, *addrs
, struct sockaddr_storage
, (*num
)+1);
1092 if (*addrs
== NULL
) {
1097 (*addrs
)[*num
] = *pss
;
1098 set_sockaddr_port((struct sockaddr
*)&(*addrs
)[*num
], port
);
1104 /*******************************************************************
1105 convert an ip to a name
1106 *******************************************************************/
1108 static bool dcip_to_name(TALLOC_CTX
*mem_ctx
,
1109 const struct winbindd_domain
*domain
,
1110 struct sockaddr_storage
*pss
,
1113 struct ip_service ip_list
;
1114 uint32_t nt_version
= NETLOGON_NT_VERSION_1
;
1116 const char *dc_name
;
1122 /* For active directory servers, try to get the ldap server name.
1123 None of these failures should be considered critical for now */
1125 if (lp_security() == SEC_ADS
) {
1127 ADS_STATUS ads_status
;
1128 char addr
[INET6_ADDRSTRLEN
];
1130 print_sockaddr(addr
, sizeof(addr
), pss
);
1132 ads
= ads_init(domain
->alt_name
, domain
->name
, addr
);
1133 ads
->auth
.flags
|= ADS_AUTH_NO_BIND
;
1135 ads_status
= ads_connect(ads
);
1136 if (ADS_ERR_OK(ads_status
)) {
1137 /* We got a cldap packet. */
1138 fstrcpy(name
, ads
->config
.ldap_server_name
);
1139 namecache_store(name
, 0x20, 1, &ip_list
);
1141 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads
->config
.flags
));
1143 if (domain
->primary
&& (ads
->config
.flags
& NBT_SERVER_KDC
)) {
1144 if (ads_closest_dc(ads
)) {
1145 char *sitename
= sitename_fetch(ads
->config
.realm
);
1147 /* We're going to use this KDC for this realm/domain.
1148 If we are using sites, then force the krb5 libs
1151 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1157 SAFE_FREE(sitename
);
1159 /* use an off site KDC */
1160 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1166 winbindd_set_locator_kdc_envs(domain
);
1168 /* Ensure we contact this DC also. */
1169 saf_store( domain
->name
, name
);
1170 saf_store( domain
->alt_name
, name
);
1173 ads_destroy( &ads
);
1177 ads_destroy( &ads
);
1182 status
= nbt_getdc(winbind_messaging_context(), 10, pss
, domain
->name
,
1183 &domain
->sid
, nt_version
, mem_ctx
, &nt_version
,
1185 if (NT_STATUS_IS_OK(status
)) {
1186 fstrcpy(name
, dc_name
);
1187 namecache_store(name
, 0x20, 1, &ip_list
);
1191 /* try node status request */
1193 if ( name_status_find(domain
->name
, 0x1c, 0x20, pss
, name
) ) {
1194 namecache_store(name
, 0x20, 1, &ip_list
);
1200 /*******************************************************************
1201 Retrieve a list of IP addresses for domain controllers.
1203 The array is sorted in the preferred connection order.
1205 @param[in] mem_ctx talloc memory context to allocate from
1206 @param[in] domain domain to retrieve DCs for
1207 @param[out] dcs array of dcs that will be returned
1208 @param[out] num_dcs number of dcs returned in the dcs array
1210 *******************************************************************/
1212 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
1213 struct dc_name_ip
**dcs
, int *num_dcs
)
1216 struct sockaddr_storage ss
;
1217 struct ip_service
*ip_list
= NULL
;
1218 int iplist_size
= 0;
1221 enum security_types sec
= (enum security_types
)lp_security();
1223 is_our_domain
= strequal(domain
->name
, lp_workgroup());
1225 /* If not our domain, get the preferred DC, by asking our primary DC */
1227 && get_dc_name_via_netlogon(domain
, dcname
, &ss
)
1228 && add_one_dc_unique(mem_ctx
, domain
->name
, dcname
, &ss
, dcs
,
1231 char addr
[INET6_ADDRSTRLEN
];
1232 print_sockaddr(addr
, sizeof(addr
), &ss
);
1233 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1238 if (sec
== SEC_ADS
) {
1239 char *sitename
= NULL
;
1241 /* We need to make sure we know the local site before
1242 doing any DNS queries, as this will restrict the
1243 get_sorted_dc_list() call below to only fetching
1244 DNS records for the correct site. */
1246 /* Find any DC to get the site record.
1247 We deliberately don't care about the
1250 get_dc_name(domain
->name
, domain
->alt_name
, dcname
, &ss
);
1252 sitename
= sitename_fetch(domain
->alt_name
);
1255 /* Do the site-specific AD dns lookup first. */
1256 get_sorted_dc_list(domain
->alt_name
, sitename
, &ip_list
,
1257 &iplist_size
, True
);
1259 /* Add ips to the DC array. We don't look up the name
1260 of the DC in this function, but we fill in the char*
1261 of the ip now to make the failed connection cache
1263 for ( i
=0; i
<iplist_size
; i
++ ) {
1264 char addr
[INET6_ADDRSTRLEN
];
1265 print_sockaddr(addr
, sizeof(addr
),
1267 add_one_dc_unique(mem_ctx
,
1276 SAFE_FREE(sitename
);
1280 /* Now we add DCs from the main AD DNS lookup. */
1281 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1282 &iplist_size
, True
);
1284 for ( i
=0; i
<iplist_size
; i
++ ) {
1285 char addr
[INET6_ADDRSTRLEN
];
1286 print_sockaddr(addr
, sizeof(addr
),
1288 add_one_dc_unique(mem_ctx
,
1300 /* Try standard netbios queries if no ADS and fall back to DNS queries
1301 * if alt_name is available */
1302 if (*num_dcs
== 0) {
1303 get_sorted_dc_list(domain
->name
, NULL
, &ip_list
, &iplist_size
,
1305 if (iplist_size
== 0) {
1306 if (domain
->alt_name
!= NULL
) {
1307 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1308 &iplist_size
, true);
1312 for ( i
=0; i
<iplist_size
; i
++ ) {
1313 char addr
[INET6_ADDRSTRLEN
];
1314 print_sockaddr(addr
, sizeof(addr
),
1316 add_one_dc_unique(mem_ctx
,
1331 /*******************************************************************
1332 Find and make a connection to a DC in the given domain.
1334 @param[in] mem_ctx talloc memory context to allocate from
1335 @param[in] domain domain to find a dc in
1336 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1337 @param[out] pss DC Internet address and port
1338 @param[out] fd fd of the open socket connected to the newly found dc
1339 @return true when a DC connection is made, false otherwise
1340 *******************************************************************/
1342 static bool find_new_dc(TALLOC_CTX
*mem_ctx
,
1343 struct winbindd_domain
*domain
,
1344 fstring dcname
, struct sockaddr_storage
*pss
, int *fd
)
1346 struct dc_name_ip
*dcs
= NULL
;
1349 const char **dcnames
= NULL
;
1350 int num_dcnames
= 0;
1352 struct sockaddr_storage
*addrs
= NULL
;
1363 if (!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
) || (num_dcs
== 0))
1366 for (i
=0; i
<num_dcs
; i
++) {
1368 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1369 &dcnames
, &num_dcnames
)) {
1372 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, TCP_SMB_PORT
,
1373 &addrs
, &num_addrs
)) {
1378 if ((num_dcnames
== 0) || (num_dcnames
!= num_addrs
))
1381 if ((addrs
== NULL
) || (dcnames
== NULL
))
1384 status
= smbsock_any_connect(addrs
, dcnames
, NULL
, NULL
, NULL
,
1385 num_addrs
, 0, 10, fd
, &fd_index
, NULL
);
1386 if (!NT_STATUS_IS_OK(status
)) {
1387 for (i
=0; i
<num_dcs
; i
++) {
1388 char ab
[INET6_ADDRSTRLEN
];
1389 print_sockaddr(ab
, sizeof(ab
), &dcs
[i
].ss
);
1390 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1391 "domain %s address %s. Error was %s\n",
1392 domain
->name
, ab
, nt_errstr(status
) ));
1393 winbind_add_failed_connection_entry(domain
,
1394 dcs
[i
].name
, NT_STATUS_UNSUCCESSFUL
);
1399 *pss
= addrs
[fd_index
];
1401 if (*dcnames
[fd_index
] != '\0' && !is_ipaddress(dcnames
[fd_index
])) {
1402 /* Ok, we've got a name for the DC */
1403 fstrcpy(dcname
, dcnames
[fd_index
]);
1407 /* Try to figure out the name */
1408 if (dcip_to_name(mem_ctx
, domain
, pss
, dcname
)) {
1412 /* We can not continue without the DC's name */
1413 winbind_add_failed_connection_entry(domain
, dcs
[fd_index
].name
,
1414 NT_STATUS_UNSUCCESSFUL
);
1416 /* Throw away all arrays as we're doing this again. */
1420 TALLOC_FREE(dcnames
);
1432 static char *current_dc_key(TALLOC_CTX
*mem_ctx
, const char *domain_name
)
1434 return talloc_asprintf_strupper_m(mem_ctx
, "CURRENT_DCNAME/%s",
1438 static void store_current_dc_in_gencache(const char *domain_name
,
1439 const char *dc_name
,
1440 struct cli_state
*cli
)
1442 char addr
[INET6_ADDRSTRLEN
];
1446 if (!cli_state_is_connected(cli
)) {
1450 print_sockaddr(addr
, sizeof(addr
),
1451 smbXcli_conn_remote_sockaddr(cli
->conn
));
1453 key
= current_dc_key(talloc_tos(), domain_name
);
1458 value
= talloc_asprintf(talloc_tos(), "%s %s", addr
, dc_name
);
1459 if (value
== NULL
) {
1463 gencache_set(key
, value
, 0x7fffffff);
1469 bool fetch_current_dc_from_gencache(TALLOC_CTX
*mem_ctx
,
1470 const char *domain_name
,
1471 char **p_dc_name
, char **p_dc_ip
)
1473 char *key
, *value
, *p
;
1475 char *dc_name
= NULL
;
1478 key
= current_dc_key(talloc_tos(), domain_name
);
1482 if (!gencache_get(key
, &value
, NULL
)) {
1485 p
= strchr(value
, ' ');
1489 dc_ip
= talloc_strndup(mem_ctx
, value
, p
- value
);
1490 if (dc_ip
== NULL
) {
1493 dc_name
= talloc_strdup(mem_ctx
, p
+1);
1494 if (dc_name
== NULL
) {
1498 if (p_dc_ip
!= NULL
) {
1502 if (p_dc_name
!= NULL
) {
1503 *p_dc_name
= dc_name
;
1508 TALLOC_FREE(dc_name
);
1514 static NTSTATUS
cm_open_connection(struct winbindd_domain
*domain
,
1515 struct winbindd_cm_conn
*new_conn
)
1517 TALLOC_CTX
*mem_ctx
;
1519 char *saf_servername
= saf_fetch( domain
->name
);
1522 if ((mem_ctx
= talloc_init("cm_open_connection")) == NULL
) {
1523 SAFE_FREE(saf_servername
);
1524 set_domain_offline(domain
);
1525 return NT_STATUS_NO_MEMORY
;
1528 /* we have to check the server affinity cache here since
1529 later we select a DC based on response time and not preference */
1531 /* Check the negative connection cache
1532 before talking to it. It going down may have
1533 triggered the reconnection. */
1535 if ( saf_servername
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, saf_servername
))) {
1537 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1538 saf_servername
, domain
->name
));
1540 /* convert an ip address to a name */
1541 if (is_ipaddress( saf_servername
) ) {
1543 struct sockaddr_storage ss
;
1545 if (!interpret_string_addr(&ss
, saf_servername
,
1547 return NT_STATUS_UNSUCCESSFUL
;
1549 if (dcip_to_name(mem_ctx
, domain
, &ss
, saf_name
)) {
1550 strlcpy(domain
->dcname
, saf_name
, sizeof(domain
->dcname
));
1552 winbind_add_failed_connection_entry(
1553 domain
, saf_servername
,
1554 NT_STATUS_UNSUCCESSFUL
);
1557 fstrcpy( domain
->dcname
, saf_servername
);
1560 SAFE_FREE( saf_servername
);
1563 for (retries
= 0; retries
< 3; retries
++) {
1567 result
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1569 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1570 domain
->dcname
, domain
->name
));
1573 && NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, domain
->dcname
))
1574 && (resolve_name(domain
->dcname
, &domain
->dcaddr
, 0x20, true)))
1578 status
= smbsock_connect(&domain
->dcaddr
, 0,
1581 if (!NT_STATUS_IS_OK(status
)) {
1587 && !find_new_dc(mem_ctx
, domain
, domain
->dcname
, &domain
->dcaddr
, &fd
))
1589 /* This is the one place where we will
1590 set the global winbindd offline state
1591 to true, if a "WINBINDD_OFFLINE" entry
1592 is found in the winbindd cache. */
1593 set_global_winbindd_state_offline();
1597 new_conn
->cli
= NULL
;
1599 result
= cm_prepare_connection(domain
, fd
, domain
->dcname
,
1600 &new_conn
->cli
, &retry
);
1606 if (NT_STATUS_IS_OK(result
)) {
1608 winbindd_set_locator_kdc_envs(domain
);
1610 if (domain
->online
== False
) {
1611 /* We're changing state from offline to online. */
1612 set_global_winbindd_state_online();
1614 set_domain_online(domain
);
1617 * Much as I hate global state, this seems to be the point
1618 * where we can be certain that we have a proper connection to
1619 * a DC. wbinfo --dc-info needs that information, store it in
1620 * gencache with a looong timeout. This will need revisiting
1621 * once we start to connect to multiple DCs, wbcDcInfo is
1622 * already prepared for that.
1624 store_current_dc_in_gencache(domain
->name
, domain
->dcname
,
1627 /* Ensure we setup the retry handler. */
1628 set_domain_offline(domain
);
1631 talloc_destroy(mem_ctx
);
1635 /* Close down all open pipes on a connection. */
1637 void invalidate_cm_connection(struct winbindd_cm_conn
*conn
)
1641 /* We're closing down a possibly dead
1642 connection. Don't have impossibly long (10s) timeouts. */
1645 cli_set_timeout(conn
->cli
, 1000); /* 1 second. */
1648 if (conn
->samr_pipe
!= NULL
) {
1649 if (is_valid_policy_hnd(&conn
->sam_connect_handle
)) {
1650 dcerpc_samr_Close(conn
->samr_pipe
->binding_handle
,
1652 &conn
->sam_connect_handle
,
1655 TALLOC_FREE(conn
->samr_pipe
);
1656 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1658 cli_set_timeout(conn
->cli
, 500);
1662 if (conn
->lsa_pipe
!= NULL
) {
1663 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1664 dcerpc_lsa_Close(conn
->lsa_pipe
->binding_handle
,
1669 TALLOC_FREE(conn
->lsa_pipe
);
1670 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1672 cli_set_timeout(conn
->cli
, 500);
1676 if (conn
->lsa_pipe_tcp
!= NULL
) {
1677 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1678 dcerpc_lsa_Close(conn
->lsa_pipe_tcp
->binding_handle
,
1683 TALLOC_FREE(conn
->lsa_pipe_tcp
);
1684 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1686 cli_set_timeout(conn
->cli
, 500);
1690 if (conn
->netlogon_pipe
!= NULL
) {
1691 TALLOC_FREE(conn
->netlogon_pipe
);
1692 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1694 cli_set_timeout(conn
->cli
, 500);
1699 cli_shutdown(conn
->cli
);
1705 void close_conns_after_fork(void)
1707 struct winbindd_domain
*domain
;
1708 struct winbindd_cli_state
*cli_state
;
1710 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
1712 * first close the low level SMB TCP connection
1713 * so that we don't generate any SMBclose
1714 * requests in invalidate_cm_connection()
1716 if (cli_state_is_connected(domain
->conn
.cli
)) {
1717 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
1720 invalidate_cm_connection(&domain
->conn
);
1723 for (cli_state
= winbindd_client_list();
1725 cli_state
= cli_state
->next
) {
1726 if (cli_state
->sock
>= 0) {
1727 close(cli_state
->sock
);
1728 cli_state
->sock
= -1;
1733 static bool connection_ok(struct winbindd_domain
*domain
)
1737 ok
= cli_state_is_connected(domain
->conn
.cli
);
1739 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1740 domain
->dcname
, domain
->name
));
1744 if (domain
->online
== False
) {
1745 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain
->name
));
1752 /* Initialize a new connection up to the RPC BIND.
1753 Bypass online status check so always does network calls. */
1755 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
)
1759 /* Internal connections never use the network. */
1760 if (domain
->internal
) {
1761 domain
->initialized
= True
;
1762 return NT_STATUS_OK
;
1765 if (connection_ok(domain
)) {
1766 if (!domain
->initialized
) {
1767 set_dc_type_and_flags(domain
);
1769 return NT_STATUS_OK
;
1772 invalidate_cm_connection(&domain
->conn
);
1774 result
= cm_open_connection(domain
, &domain
->conn
);
1776 if (NT_STATUS_IS_OK(result
) && !domain
->initialized
) {
1777 set_dc_type_and_flags(domain
);
1783 NTSTATUS
init_dc_connection(struct winbindd_domain
*domain
)
1785 if (domain
->internal
) {
1786 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
1789 if (domain
->initialized
&& !domain
->online
) {
1790 /* We check for online status elsewhere. */
1791 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1794 return init_dc_connection_network(domain
);
1797 static NTSTATUS
init_dc_connection_rpc(struct winbindd_domain
*domain
)
1801 status
= init_dc_connection(domain
);
1802 if (!NT_STATUS_IS_OK(status
)) {
1806 if (!domain
->internal
&& domain
->conn
.cli
== NULL
) {
1807 /* happens for trusted domains without inbound trust */
1808 return NT_STATUS_TRUSTED_DOMAIN_FAILURE
;
1811 return NT_STATUS_OK
;
1814 /******************************************************************************
1815 Set the trust flags (direction and forest location) for a domain
1816 ******************************************************************************/
1818 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain
*domain
)
1820 struct winbindd_domain
*our_domain
;
1821 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1823 struct netr_DomainTrustList trusts
;
1825 uint32 flags
= (NETR_TRUST_FLAG_IN_FOREST
|
1826 NETR_TRUST_FLAG_OUTBOUND
|
1827 NETR_TRUST_FLAG_INBOUND
);
1828 struct rpc_pipe_client
*cli
;
1829 TALLOC_CTX
*mem_ctx
= NULL
;
1830 struct dcerpc_binding_handle
*b
;
1832 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain
->name
));
1834 /* Our primary domain doesn't need to worry about trust flags.
1835 Force it to go through the network setup */
1836 if ( domain
->primary
) {
1840 our_domain
= find_our_domain();
1842 if ( !connection_ok(our_domain
) ) {
1843 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1847 /* This won't work unless our domain is AD */
1849 if ( !our_domain
->active_directory
) {
1853 /* Use DsEnumerateDomainTrusts to get us the trust direction
1856 result
= cm_connect_netlogon(our_domain
, &cli
);
1858 if (!NT_STATUS_IS_OK(result
)) {
1859 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1860 "a connection to %s for PIPE_NETLOGON (%s)\n",
1861 domain
->name
, nt_errstr(result
)));
1865 b
= cli
->binding_handle
;
1867 if ( (mem_ctx
= talloc_init("set_dc_type_and_flags_trustinfo")) == NULL
) {
1868 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1872 result
= dcerpc_netr_DsrEnumerateDomainTrusts(b
, mem_ctx
,
1877 if (!NT_STATUS_IS_OK(result
)) {
1878 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1879 "failed to query trusted domain list: %s\n",
1880 nt_errstr(result
)));
1881 talloc_destroy(mem_ctx
);
1884 if (!W_ERROR_IS_OK(werr
)) {
1885 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1886 "failed to query trusted domain list: %s\n",
1888 talloc_destroy(mem_ctx
);
1892 /* Now find the domain name and get the flags */
1894 for ( i
=0; i
<trusts
.count
; i
++ ) {
1895 if ( strequal( domain
->name
, trusts
.array
[i
].netbios_name
) ) {
1896 domain
->domain_flags
= trusts
.array
[i
].trust_flags
;
1897 domain
->domain_type
= trusts
.array
[i
].trust_type
;
1898 domain
->domain_trust_attribs
= trusts
.array
[i
].trust_attributes
;
1900 if ( domain
->domain_type
== NETR_TRUST_TYPE_UPLEVEL
)
1901 domain
->active_directory
= True
;
1903 /* This flag is only set if the domain is *our*
1904 primary domain and the primary domain is in
1907 domain
->native_mode
= (domain
->domain_flags
& NETR_TRUST_FLAG_NATIVE
);
1909 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1910 "native mode.\n", domain
->name
,
1911 domain
->native_mode
? "" : "NOT "));
1913 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1914 "running active directory.\n", domain
->name
,
1915 domain
->active_directory
? "" : "NOT "));
1917 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
1918 domain
->can_do_validation6
= domain
->active_directory
;
1920 domain
->initialized
= True
;
1926 talloc_destroy( mem_ctx
);
1928 return domain
->initialized
;
1931 /******************************************************************************
1932 We can 'sense' certain things about the DC by it's replies to certain
1935 This tells us if this particular remote server is Active Directory, and if it
1937 ******************************************************************************/
1939 static void set_dc_type_and_flags_connect( struct winbindd_domain
*domain
)
1941 NTSTATUS status
, result
;
1943 TALLOC_CTX
*mem_ctx
= NULL
;
1944 struct rpc_pipe_client
*cli
= NULL
;
1945 struct policy_handle pol
;
1946 union dssetup_DsRoleInfo info
;
1947 union lsa_PolicyInformation
*lsa_info
= NULL
;
1949 if (!connection_ok(domain
)) {
1953 mem_ctx
= talloc_init("set_dc_type_and_flags on domain %s\n",
1956 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1960 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain
->name
));
1962 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
1963 &ndr_table_dssetup
.syntax_id
,
1966 if (!NT_STATUS_IS_OK(status
)) {
1967 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1968 "PI_DSSETUP on domain %s: (%s)\n",
1969 domain
->name
, nt_errstr(status
)));
1971 /* if this is just a non-AD domain we need to continue
1972 * identifying so that we can in the end return with
1973 * domain->initialized = True - gd */
1978 status
= dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli
->binding_handle
, mem_ctx
,
1979 DS_ROLE_BASIC_INFORMATION
,
1984 if (NT_STATUS_IS_OK(status
)) {
1985 result
= werror_to_ntstatus(werr
);
1987 if (!NT_STATUS_IS_OK(status
)) {
1988 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1989 "on domain %s failed: (%s)\n",
1990 domain
->name
, nt_errstr(status
)));
1992 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1993 * every opcode on the DSSETUP pipe, continue with
1994 * no_dssetup mode here as well to get domain->initialized
1997 if (NT_STATUS_EQUAL(status
, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
)) {
2001 TALLOC_FREE(mem_ctx
);
2005 if ((info
.basic
.flags
& DS_ROLE_PRIMARY_DS_RUNNING
) &&
2006 !(info
.basic
.flags
& DS_ROLE_PRIMARY_DS_MIXED_MODE
)) {
2007 domain
->native_mode
= True
;
2009 domain
->native_mode
= False
;
2013 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
2014 &ndr_table_lsarpc
.syntax_id
, &cli
);
2016 if (!NT_STATUS_IS_OK(status
)) {
2017 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2018 "PI_LSARPC on domain %s: (%s)\n",
2019 domain
->name
, nt_errstr(status
)));
2021 TALLOC_FREE(mem_ctx
);
2025 status
= rpccli_lsa_open_policy2(cli
, mem_ctx
, True
,
2026 SEC_FLAG_MAXIMUM_ALLOWED
, &pol
);
2028 if (NT_STATUS_IS_OK(status
)) {
2029 /* This particular query is exactly what Win2k clients use
2030 to determine that the DC is active directory */
2031 status
= dcerpc_lsa_QueryInfoPolicy2(cli
->binding_handle
, mem_ctx
,
2033 LSA_POLICY_INFO_DNS
,
2038 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2039 domain
->active_directory
= True
;
2041 if (lsa_info
->dns
.name
.string
) {
2042 fstrcpy(domain
->name
, lsa_info
->dns
.name
.string
);
2045 if (lsa_info
->dns
.dns_domain
.string
) {
2046 fstrcpy(domain
->alt_name
,
2047 lsa_info
->dns
.dns_domain
.string
);
2050 /* See if we can set some domain trust flags about
2053 if (lsa_info
->dns
.dns_forest
.string
) {
2054 fstrcpy(domain
->forest_name
,
2055 lsa_info
->dns
.dns_forest
.string
);
2057 if (strequal(domain
->forest_name
, domain
->alt_name
)) {
2058 domain
->domain_flags
|= NETR_TRUST_FLAG_TREEROOT
;
2062 if (lsa_info
->dns
.sid
) {
2063 sid_copy(&domain
->sid
, lsa_info
->dns
.sid
);
2066 domain
->active_directory
= False
;
2068 status
= rpccli_lsa_open_policy(cli
, mem_ctx
, True
,
2069 SEC_FLAG_MAXIMUM_ALLOWED
,
2072 if (!NT_STATUS_IS_OK(status
)) {
2076 status
= dcerpc_lsa_QueryInfoPolicy(cli
->binding_handle
, mem_ctx
,
2078 LSA_POLICY_INFO_ACCOUNT_DOMAIN
,
2081 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2083 if (lsa_info
->account_domain
.name
.string
) {
2084 fstrcpy(domain
->name
,
2085 lsa_info
->account_domain
.name
.string
);
2088 if (lsa_info
->account_domain
.sid
) {
2089 sid_copy(&domain
->sid
, lsa_info
->account_domain
.sid
);
2095 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2096 domain
->name
, domain
->native_mode
? "" : "NOT "));
2098 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2099 domain
->name
, domain
->active_directory
? "" : "NOT "));
2101 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
2102 domain
->can_do_validation6
= domain
->active_directory
;
2106 TALLOC_FREE(mem_ctx
);
2108 domain
->initialized
= True
;
2111 /**********************************************************************
2112 Set the domain_flags (trust attributes, domain operating modes, etc...
2113 ***********************************************************************/
2115 static void set_dc_type_and_flags( struct winbindd_domain
*domain
)
2117 /* we always have to contact our primary domain */
2119 if ( domain
->primary
) {
2120 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2121 "primary domain\n"));
2122 set_dc_type_and_flags_connect( domain
);
2126 /* Use our DC to get the information if possible */
2128 if ( !set_dc_type_and_flags_trustinfo( domain
) ) {
2129 /* Otherwise, fallback to contacting the
2131 set_dc_type_and_flags_connect( domain
);
2139 /**********************************************************************
2140 ***********************************************************************/
2142 static NTSTATUS
cm_get_schannel_creds(struct winbindd_domain
*domain
,
2143 struct netlogon_creds_CredentialState
**ppdc
)
2145 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2146 struct rpc_pipe_client
*netlogon_pipe
;
2148 if (lp_client_schannel() == False
) {
2149 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2152 result
= cm_connect_netlogon(domain
, &netlogon_pipe
);
2153 if (!NT_STATUS_IS_OK(result
)) {
2157 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2160 if (!domain
->conn
.netlogon_pipe
->dc
) {
2161 return NT_STATUS_INTERNAL_ERROR
; /* This shouldn't happen. */
2164 *ppdc
= domain
->conn
.netlogon_pipe
->dc
;
2165 return NT_STATUS_OK
;
2168 NTSTATUS
cm_connect_sam(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2169 struct rpc_pipe_client
**cli
, struct policy_handle
*sam_handle
)
2171 struct winbindd_cm_conn
*conn
;
2172 NTSTATUS status
, result
;
2173 struct netlogon_creds_CredentialState
*p_creds
;
2174 char *machine_password
= NULL
;
2175 char *machine_account
= NULL
;
2176 char *domain_name
= NULL
;
2178 if (sid_check_is_our_sam(&domain
->sid
)) {
2179 return open_internal_samr_conn(mem_ctx
, domain
, cli
, sam_handle
);
2182 status
= init_dc_connection_rpc(domain
);
2183 if (!NT_STATUS_IS_OK(status
)) {
2187 conn
= &domain
->conn
;
2189 if (rpccli_is_connected(conn
->samr_pipe
)) {
2193 TALLOC_FREE(conn
->samr_pipe
);
2196 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2197 * sign and sealed pipe using the machine account password by
2198 * preference. If we can't - try schannel, if that fails, try
2202 if ((conn
->cli
->user_name
[0] == '\0') ||
2203 (conn
->cli
->domain
[0] == '\0') ||
2204 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0'))
2206 status
= get_trust_creds(domain
, &machine_password
,
2207 &machine_account
, NULL
);
2208 if (!NT_STATUS_IS_OK(status
)) {
2209 DEBUG(10, ("cm_connect_sam: No no user available for "
2210 "domain %s, trying schannel\n", conn
->cli
->domain
));
2213 domain_name
= domain
->name
;
2215 machine_password
= SMB_STRDUP(conn
->cli
->password
);
2216 machine_account
= SMB_STRDUP(conn
->cli
->user_name
);
2217 domain_name
= conn
->cli
->domain
;
2220 if (!machine_password
|| !machine_account
) {
2221 status
= NT_STATUS_NO_MEMORY
;
2225 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2226 authenticated SAMR pipe with sign & seal. */
2227 status
= cli_rpc_pipe_open_spnego(conn
->cli
,
2231 DCERPC_AUTH_LEVEL_PRIVACY
,
2232 smbXcli_conn_remote_name(conn
->cli
->conn
),
2238 if (!NT_STATUS_IS_OK(status
)) {
2239 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2240 "pipe for domain %s using NTLMSSP "
2241 "authenticated pipe: user %s\\%s. Error was "
2242 "%s\n", domain
->name
, domain_name
,
2243 machine_account
, nt_errstr(status
)));
2247 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2248 "domain %s using NTLMSSP authenticated "
2249 "pipe: user %s\\%s\n", domain
->name
,
2250 domain_name
, machine_account
));
2252 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2253 conn
->samr_pipe
->desthost
,
2254 SEC_FLAG_MAXIMUM_ALLOWED
,
2255 &conn
->sam_connect_handle
,
2257 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2260 if (NT_STATUS_IS_OK(status
)) {
2264 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2265 "failed for domain %s, error was %s. Trying schannel\n",
2266 domain
->name
, nt_errstr(status
) ));
2267 TALLOC_FREE(conn
->samr_pipe
);
2271 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2273 status
= cm_get_schannel_creds(domain
, &p_creds
);
2274 if (!NT_STATUS_IS_OK(status
)) {
2275 /* If this call fails - conn->cli can now be NULL ! */
2276 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2277 "for domain %s (error %s), trying anon\n",
2279 nt_errstr(status
) ));
2282 status
= cli_rpc_pipe_open_schannel_with_key
2283 (conn
->cli
, &ndr_table_samr
.syntax_id
, NCACN_NP
,
2284 DCERPC_AUTH_LEVEL_PRIVACY
,
2285 domain
->name
, &p_creds
, &conn
->samr_pipe
);
2287 if (!NT_STATUS_IS_OK(status
)) {
2288 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2289 "domain %s using schannel. Error was %s\n",
2290 domain
->name
, nt_errstr(status
) ));
2293 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2294 "schannel.\n", domain
->name
));
2296 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2297 conn
->samr_pipe
->desthost
,
2298 SEC_FLAG_MAXIMUM_ALLOWED
,
2299 &conn
->sam_connect_handle
,
2301 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2304 if (NT_STATUS_IS_OK(status
)) {
2307 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2308 "for domain %s, error was %s. Trying anonymous\n",
2309 domain
->name
, nt_errstr(status
) ));
2310 TALLOC_FREE(conn
->samr_pipe
);
2314 /* Finally fall back to anonymous. */
2315 status
= cli_rpc_pipe_open_noauth(conn
->cli
, &ndr_table_samr
.syntax_id
,
2318 if (!NT_STATUS_IS_OK(status
)) {
2322 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2323 conn
->samr_pipe
->desthost
,
2324 SEC_FLAG_MAXIMUM_ALLOWED
,
2325 &conn
->sam_connect_handle
,
2327 if (!NT_STATUS_IS_OK(status
)) {
2328 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2329 "for domain %s Error was %s\n",
2330 domain
->name
, nt_errstr(status
) ));
2333 if (!NT_STATUS_IS_OK(result
)) {
2335 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2336 "for domain %s Error was %s\n",
2337 domain
->name
, nt_errstr(result
)));
2342 status
= dcerpc_samr_OpenDomain(conn
->samr_pipe
->binding_handle
,
2344 &conn
->sam_connect_handle
,
2345 SEC_FLAG_MAXIMUM_ALLOWED
,
2347 &conn
->sam_domain_handle
,
2349 if (!NT_STATUS_IS_OK(status
)) {
2356 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
2358 * if we got access denied, we might just have no access rights
2359 * to talk to the remote samr server server (e.g. when we are a
2360 * PDC and we are connecting a w2k8 pdc via an interdomain
2361 * trust). In that case do not invalidate the whole connection
2364 TALLOC_FREE(conn
->samr_pipe
);
2365 ZERO_STRUCT(conn
->sam_domain_handle
);
2367 } else if (!NT_STATUS_IS_OK(status
)) {
2368 invalidate_cm_connection(conn
);
2372 *cli
= conn
->samr_pipe
;
2373 *sam_handle
= conn
->sam_domain_handle
;
2374 SAFE_FREE(machine_password
);
2375 SAFE_FREE(machine_account
);
2379 /**********************************************************************
2380 open an schanneld ncacn_ip_tcp connection to LSA
2381 ***********************************************************************/
2383 NTSTATUS
cm_connect_lsa_tcp(struct winbindd_domain
*domain
,
2384 TALLOC_CTX
*mem_ctx
,
2385 struct rpc_pipe_client
**cli
)
2387 struct winbindd_cm_conn
*conn
;
2388 struct netlogon_creds_CredentialState
*creds
;
2391 DEBUG(10,("cm_connect_lsa_tcp\n"));
2393 status
= init_dc_connection_rpc(domain
);
2394 if (!NT_STATUS_IS_OK(status
)) {
2398 conn
= &domain
->conn
;
2400 if (conn
->lsa_pipe_tcp
&&
2401 conn
->lsa_pipe_tcp
->transport
->transport
== NCACN_IP_TCP
&&
2402 conn
->lsa_pipe_tcp
->auth
->auth_level
== DCERPC_AUTH_LEVEL_PRIVACY
&&
2403 rpccli_is_connected(conn
->lsa_pipe_tcp
)) {
2407 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2409 status
= cm_get_schannel_creds(domain
, &creds
);
2410 if (!NT_STATUS_IS_OK(status
)) {
2414 status
= cli_rpc_pipe_open_schannel_with_key(conn
->cli
,
2415 &ndr_table_lsarpc
.syntax_id
,
2417 DCERPC_AUTH_LEVEL_PRIVACY
,
2420 &conn
->lsa_pipe_tcp
);
2421 if (!NT_STATUS_IS_OK(status
)) {
2422 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2423 nt_errstr(status
)));
2428 if (!NT_STATUS_IS_OK(status
)) {
2429 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2433 *cli
= conn
->lsa_pipe_tcp
;
2438 NTSTATUS
cm_connect_lsa(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2439 struct rpc_pipe_client
**cli
, struct policy_handle
*lsa_policy
)
2441 struct winbindd_cm_conn
*conn
;
2442 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2443 struct netlogon_creds_CredentialState
*p_creds
;
2445 result
= init_dc_connection_rpc(domain
);
2446 if (!NT_STATUS_IS_OK(result
))
2449 conn
= &domain
->conn
;
2451 if (rpccli_is_connected(conn
->lsa_pipe
)) {
2455 TALLOC_FREE(conn
->lsa_pipe
);
2457 if ((conn
->cli
->user_name
[0] == '\0') ||
2458 (conn
->cli
->domain
[0] == '\0') ||
2459 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0')) {
2460 DEBUG(10, ("cm_connect_lsa: No no user available for "
2461 "domain %s, trying schannel\n", conn
->cli
->domain
));
2465 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2466 * authenticated LSA pipe with sign & seal. */
2467 result
= cli_rpc_pipe_open_spnego
2468 (conn
->cli
, &ndr_table_lsarpc
, NCACN_NP
,
2470 DCERPC_AUTH_LEVEL_PRIVACY
,
2471 smbXcli_conn_remote_name(conn
->cli
->conn
),
2472 conn
->cli
->domain
, conn
->cli
->user_name
, conn
->cli
->password
,
2475 if (!NT_STATUS_IS_OK(result
)) {
2476 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2477 "domain %s using NTLMSSP authenticated pipe: user "
2478 "%s\\%s. Error was %s. Trying schannel.\n",
2479 domain
->name
, conn
->cli
->domain
,
2480 conn
->cli
->user_name
, nt_errstr(result
)));
2484 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2485 "NTLMSSP authenticated pipe: user %s\\%s\n",
2486 domain
->name
, conn
->cli
->domain
, conn
->cli
->user_name
));
2488 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2489 SEC_FLAG_MAXIMUM_ALLOWED
,
2491 if (NT_STATUS_IS_OK(result
)) {
2495 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2498 TALLOC_FREE(conn
->lsa_pipe
);
2502 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2504 result
= cm_get_schannel_creds(domain
, &p_creds
);
2505 if (!NT_STATUS_IS_OK(result
)) {
2506 /* If this call fails - conn->cli can now be NULL ! */
2507 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2508 "for domain %s (error %s), trying anon\n",
2510 nt_errstr(result
) ));
2513 result
= cli_rpc_pipe_open_schannel_with_key
2514 (conn
->cli
, &ndr_table_lsarpc
.syntax_id
, NCACN_NP
,
2515 DCERPC_AUTH_LEVEL_PRIVACY
,
2516 domain
->name
, &p_creds
, &conn
->lsa_pipe
);
2518 if (!NT_STATUS_IS_OK(result
)) {
2519 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2520 "domain %s using schannel. Error was %s\n",
2521 domain
->name
, nt_errstr(result
) ));
2524 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2525 "schannel.\n", domain
->name
));
2527 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2528 SEC_FLAG_MAXIMUM_ALLOWED
,
2530 if (NT_STATUS_IS_OK(result
)) {
2534 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2537 TALLOC_FREE(conn
->lsa_pipe
);
2541 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2542 &ndr_table_lsarpc
.syntax_id
,
2544 if (!NT_STATUS_IS_OK(result
)) {
2545 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2549 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2550 SEC_FLAG_MAXIMUM_ALLOWED
,
2553 if (!NT_STATUS_IS_OK(result
)) {
2554 invalidate_cm_connection(conn
);
2558 *cli
= conn
->lsa_pipe
;
2559 *lsa_policy
= conn
->lsa_policy
;
2563 /****************************************************************************
2564 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2565 session key stored in conn->netlogon_pipe->dc->sess_key.
2566 ****************************************************************************/
2568 NTSTATUS
cm_connect_netlogon(struct winbindd_domain
*domain
,
2569 struct rpc_pipe_client
**cli
)
2571 struct winbindd_cm_conn
*conn
;
2574 uint32_t neg_flags
= NETLOGON_NEG_AUTH2_ADS_FLAGS
| NETLOGON_NEG_SUPPORTS_AES
;
2576 enum netr_SchannelType sec_chan_type
;
2577 const char *account_name
;
2578 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
2582 result
= init_dc_connection_rpc(domain
);
2583 if (!NT_STATUS_IS_OK(result
)) {
2587 conn
= &domain
->conn
;
2589 if (rpccli_is_connected(conn
->netlogon_pipe
)) {
2590 *cli
= conn
->netlogon_pipe
;
2591 return NT_STATUS_OK
;
2594 TALLOC_FREE(conn
->netlogon_pipe
);
2596 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2597 &ndr_table_netlogon
.syntax_id
,
2599 if (!NT_STATUS_IS_OK(result
)) {
2603 if ((!IS_DC
) && (!domain
->primary
)) {
2604 /* Clear the schannel request bit and drop down */
2605 neg_flags
&= ~NETLOGON_NEG_SCHANNEL
;
2609 if (lp_client_schannel() != False
) {
2610 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
2613 if (!get_trust_pw_hash(domain
->name
, mach_pwd
, &account_name
,
2616 TALLOC_FREE(netlogon_pipe
);
2617 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2620 result
= rpccli_netlogon_setup_creds(
2622 domain
->dcname
, /* server name. */
2623 domain
->name
, /* domain name */
2624 lp_netbios_name(), /* client name */
2625 account_name
, /* machine account */
2626 mach_pwd
, /* machine password */
2627 sec_chan_type
, /* from get_trust_pw */
2630 if (!NT_STATUS_IS_OK(result
)) {
2631 TALLOC_FREE(netlogon_pipe
);
2635 if ((lp_client_schannel() == True
) &&
2636 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2637 DEBUG(3, ("Server did not offer schannel\n"));
2638 TALLOC_FREE(netlogon_pipe
);
2639 return NT_STATUS_ACCESS_DENIED
;
2643 if ((lp_client_schannel() == False
) ||
2644 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2646 * NetSamLogonEx only works for schannel
2648 domain
->can_do_samlogon_ex
= False
;
2650 /* We're done - just keep the existing connection to NETLOGON
2652 conn
->netlogon_pipe
= netlogon_pipe
;
2653 *cli
= conn
->netlogon_pipe
;
2654 return NT_STATUS_OK
;
2657 /* Using the credentials from the first pipe, open a signed and sealed
2658 second netlogon pipe. The session key is stored in the schannel
2659 part of the new pipe auth struct.
2662 result
= cli_rpc_pipe_open_schannel_with_key(
2663 conn
->cli
, &ndr_table_netlogon
.syntax_id
, NCACN_NP
,
2664 DCERPC_AUTH_LEVEL_PRIVACY
, domain
->name
, &netlogon_pipe
->dc
,
2665 &conn
->netlogon_pipe
);
2667 /* We can now close the initial netlogon pipe. */
2668 TALLOC_FREE(netlogon_pipe
);
2670 if (!NT_STATUS_IS_OK(result
)) {
2671 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2672 "was %s\n", nt_errstr(result
)));
2674 invalidate_cm_connection(conn
);
2679 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2680 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2681 * supported). We used to only try SamLogonEx for AD, but
2682 * Samba DCs can also do it. And because we don't distinguish
2683 * between Samba and NT4, always try it once.
2685 domain
->can_do_samlogon_ex
= true;
2687 *cli
= conn
->netlogon_pipe
;
2688 return NT_STATUS_OK
;
2691 void winbind_msg_ip_dropped(struct messaging_context
*msg_ctx
,
2694 struct server_id server_id
,
2697 struct winbindd_domain
*domain
;
2698 char *freeit
= NULL
;
2702 || (data
->data
== NULL
)
2703 || (data
->length
== 0)
2704 || (data
->data
[data
->length
-1] != '\0')) {
2705 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2710 addr
= (char *)data
->data
;
2711 DEBUG(10, ("IP %s dropped\n", addr
));
2713 if (!is_ipaddress(addr
)) {
2716 * Some code sends us ip addresses with the /netmask
2719 slash
= strchr(addr
, '/');
2720 if (slash
== NULL
) {
2721 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2725 freeit
= talloc_strndup(talloc_tos(), addr
, slash
-addr
);
2726 if (freeit
== NULL
) {
2727 DEBUG(1, ("talloc failed\n"));
2731 DEBUG(10, ("Stripped /netmask to IP %s\n", addr
));
2734 for (domain
= domain_list(); domain
!= NULL
; domain
= domain
->next
) {
2735 char sockaddr
[INET6_ADDRSTRLEN
];
2737 if (!cli_state_is_connected(domain
->conn
.cli
)) {
2741 print_sockaddr(sockaddr
, sizeof(sockaddr
),
2742 smbXcli_conn_local_sockaddr(domain
->conn
.cli
->conn
));
2744 if (strequal(sockaddr
, addr
)) {
2745 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
2748 TALLOC_FREE(freeit
);