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 (const uint8_t *)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 (const uint8_t *)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 (const uint8_t *)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 (const uint8_t *)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 tevent_context
*ctx
,
290 struct tevent_timer
*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
= tevent_add_timer(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 (const uint8_t *)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 (const uint8_t *)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
= tevent_add_timer(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
!= NULL
) {
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 (domain
->alt_name
== NULL
) {
669 domain
->alt_name
= talloc_strdup(domain
,
670 domain_info
->domain_name
);
671 if (domain
->alt_name
== NULL
) {
672 DEBUG(0, ("talloc_strdup failed\n"));
673 talloc_destroy(mem_ctx
);
677 if (domain
->forest_name
== NULL
) {
678 domain
->forest_name
= talloc_strdup(domain
,
679 domain_info
->forest_name
);
680 if (domain
->forest_name
== NULL
) {
681 DEBUG(0, ("talloc_strdup failed\n"));
682 talloc_destroy(mem_ctx
);
688 result
= dcerpc_netr_GetAnyDCName(b
, mem_ctx
,
695 /* And restore our original timeout. */
696 rpccli_set_timeout(netlogon_pipe
, orig_timeout
);
698 if (!NT_STATUS_IS_OK(result
)) {
699 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
701 talloc_destroy(mem_ctx
);
705 if (!W_ERROR_IS_OK(werr
)) {
706 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
708 talloc_destroy(mem_ctx
);
712 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
713 p
= strip_hostname(tmp
);
717 talloc_destroy(mem_ctx
);
719 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname
));
721 if (!resolve_name(dcname
, dc_ss
, 0x20, true)) {
729 * Helper function to assemble trust password and account name
731 static NTSTATUS
get_trust_creds(const struct winbindd_domain
*domain
,
732 char **machine_password
,
733 char **machine_account
,
734 char **machine_krb5_principal
)
736 const char *account_name
;
737 const char *name
= NULL
;
739 /* If we are a DC and this is not our own domain */
744 struct winbindd_domain
*our_domain
= find_our_domain();
747 return NT_STATUS_INVALID_SERVER_STATE
;
749 name
= our_domain
->name
;
752 if (!get_trust_pw_clear(name
, machine_password
,
753 &account_name
, NULL
))
755 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
758 if ((machine_account
!= NULL
) &&
759 (asprintf(machine_account
, "%s$", account_name
) == -1))
761 return NT_STATUS_NO_MEMORY
;
764 /* For now assume our machine account only exists in our domain */
766 if (machine_krb5_principal
!= NULL
)
768 struct winbindd_domain
*our_domain
= find_our_domain();
771 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
774 if (asprintf(machine_krb5_principal
, "%s$@%s",
775 account_name
, our_domain
->alt_name
) == -1)
777 return NT_STATUS_NO_MEMORY
;
780 if (!strupper_m(*machine_krb5_principal
)) {
781 SAFE_FREE(machine_krb5_principal
);
782 return NT_STATUS_INVALID_PARAMETER
;
789 /************************************************************************
790 Given a fd with a just-connected TCP connection to a DC, open a connection
792 ************************************************************************/
794 static NTSTATUS
cm_prepare_connection(const struct winbindd_domain
*domain
,
796 const char *controller
,
797 struct cli_state
**cli
,
800 bool try_spnego
= false;
801 bool try_ipc_auth
= false;
802 char *machine_password
= NULL
;
803 char *machine_krb5_principal
= NULL
;
804 char *machine_account
= NULL
;
805 char *ipc_username
= NULL
;
806 char *ipc_domain
= NULL
;
807 char *ipc_password
= NULL
;
809 uint16_t sec_mode
= 0;
811 struct named_mutex
*mutex
;
813 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
815 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
816 controller
, domain
->name
));
820 mutex
= grab_named_mutex(talloc_tos(), controller
,
821 WINBIND_SERVER_MUTEX_WAIT_TIME
);
824 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
826 result
= NT_STATUS_POSSIBLE_DEADLOCK
;
830 flags
|= CLI_FULL_CONNECTION_USE_KERBEROS
;
832 *cli
= cli_state_create(NULL
, sockfd
,
833 controller
, domain
->alt_name
,
834 SMB_SIGNING_DEFAULT
, flags
);
837 DEBUG(1, ("Could not cli_initialize\n"));
838 result
= NT_STATUS_NO_MEMORY
;
842 cli_set_timeout(*cli
, 10000); /* 10 seconds */
844 result
= smbXcli_negprot((*cli
)->conn
, (*cli
)->timeout
, PROTOCOL_CORE
,
847 if (!NT_STATUS_IS_OK(result
)) {
848 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result
)));
852 if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_NT1
&&
853 smb1cli_conn_capabilities((*cli
)->conn
) & CAP_EXTENDED_SECURITY
) {
855 } else if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_SMB2_02
) {
859 if (!is_dc_trusted_domain_situation(domain
->name
) && try_spnego
) {
860 result
= get_trust_creds(domain
, &machine_password
,
862 &machine_krb5_principal
);
863 if (!NT_STATUS_IS_OK(result
)) {
867 if (lp_security() == SEC_ADS
) {
869 /* Try a krb5 session */
871 (*cli
)->use_kerberos
= True
;
872 DEBUG(5, ("connecting to %s from %s with kerberos principal "
873 "[%s] and realm [%s]\n", controller
, lp_netbios_name(),
874 machine_krb5_principal
, domain
->alt_name
));
876 winbindd_set_locator_kdc_envs(domain
);
878 result
= cli_session_setup(*cli
,
879 machine_krb5_principal
,
881 strlen(machine_password
)+1,
883 strlen(machine_password
)+1,
886 if (!NT_STATUS_IS_OK(result
)) {
887 DEBUG(4,("failed kerberos session setup with %s\n",
891 if (NT_STATUS_IS_OK(result
)) {
892 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
893 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
894 if (!NT_STATUS_IS_OK(result
)) {
897 goto session_setup_done
;
901 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
902 (*cli
)->use_kerberos
= False
;
904 DEBUG(5, ("connecting to %s from %s with username "
905 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
906 lp_workgroup(), machine_account
));
908 result
= cli_session_setup(*cli
,
911 strlen(machine_password
)+1,
913 strlen(machine_password
)+1,
915 if (!NT_STATUS_IS_OK(result
)) {
916 DEBUG(4, ("authenticated session setup failed with %s\n",
920 if (NT_STATUS_IS_OK(result
)) {
921 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
922 result
= cli_init_creds(*cli
, machine_account
, lp_workgroup(), machine_password
);
923 if (!NT_STATUS_IS_OK(result
)) {
926 goto session_setup_done
;
930 /* Fall back to non-kerberos session setup with auth_user */
932 (*cli
)->use_kerberos
= False
;
934 cm_get_ipc_userpass(&ipc_username
, &ipc_domain
, &ipc_password
);
936 sec_mode
= smb1cli_conn_server_security_mode((*cli
)->conn
);
938 try_ipc_auth
= false;
941 } else if (sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) {
945 if (try_ipc_auth
&& (strlen(ipc_username
) > 0)) {
947 /* Only try authenticated if we have a username */
949 DEBUG(5, ("connecting to %s from %s with username "
950 "[%s]\\[%s]\n", controller
, lp_netbios_name(),
951 ipc_domain
, ipc_username
));
953 if (NT_STATUS_IS_OK(cli_session_setup(
955 ipc_password
, strlen(ipc_password
)+1,
956 ipc_password
, strlen(ipc_password
)+1,
958 /* Successful logon with given username. */
959 result
= cli_init_creds(*cli
, ipc_username
, ipc_domain
, ipc_password
);
960 if (!NT_STATUS_IS_OK(result
)) {
963 goto session_setup_done
;
965 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
966 ipc_domain
, ipc_username
));
972 /* Fall back to anonymous connection, this might fail later */
973 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
974 "connection for DC %s\n",
977 result
= cli_session_setup(*cli
, "", NULL
, 0, NULL
, 0, "");
978 if (NT_STATUS_IS_OK(result
)) {
979 DEBUG(5, ("Connected anonymously\n"));
980 result
= cli_init_creds(*cli
, "", "", "");
981 if (!NT_STATUS_IS_OK(result
)) {
984 goto session_setup_done
;
987 /* We can't session setup */
993 * This should be a short term hack until
994 * dynamic re-authentication is implemented.
996 * See Bug 9175 - winbindd doesn't recover from
997 * NT_STATUS_NETWORK_SESSION_EXPIRED
999 if (smbXcli_conn_protocol((*cli
)->conn
) >= PROTOCOL_SMB2_02
) {
1000 smbXcli_session_set_disconnect_expired((*cli
)->smb2
.session
);
1003 /* cache the server name for later connections */
1005 saf_store(domain
->name
, controller
);
1006 if (domain
->alt_name
&& (*cli
)->use_kerberos
) {
1007 saf_store(domain
->alt_name
, controller
);
1010 winbindd_set_locator_kdc_envs(domain
);
1012 result
= cli_tree_connect(*cli
, "IPC$", "IPC", "", 0);
1014 if (!NT_STATUS_IS_OK(result
)) {
1015 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result
)));
1022 /* set the domain if empty; needed for schannel connections */
1023 if ( !(*cli
)->domain
[0] ) {
1024 result
= cli_set_domain((*cli
), domain
->name
);
1025 if (!NT_STATUS_IS_OK(result
)) {
1026 SAFE_FREE(ipc_username
);
1027 SAFE_FREE(ipc_domain
);
1028 SAFE_FREE(ipc_password
);
1033 result
= NT_STATUS_OK
;
1037 SAFE_FREE(machine_account
);
1038 SAFE_FREE(machine_password
);
1039 SAFE_FREE(machine_krb5_principal
);
1040 SAFE_FREE(ipc_username
);
1041 SAFE_FREE(ipc_domain
);
1042 SAFE_FREE(ipc_password
);
1044 if (!NT_STATUS_IS_OK(result
)) {
1045 winbind_add_failed_connection_entry(domain
, controller
, result
);
1046 if ((*cli
) != NULL
) {
1055 /*******************************************************************
1056 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1059 Keeps the list unique by not adding duplicate entries.
1061 @param[in] mem_ctx talloc memory context to allocate from
1062 @param[in] domain_name domain of the DC
1063 @param[in] dcname name of the DC to add to the list
1064 @param[in] pss Internet address and port pair to add to the list
1065 @param[in,out] dcs array of dc_name_ip structures to add to
1066 @param[in,out] num_dcs number of dcs returned in the dcs array
1067 @return true if the list was added to, false otherwise
1068 *******************************************************************/
1070 static bool add_one_dc_unique(TALLOC_CTX
*mem_ctx
, const char *domain_name
,
1071 const char *dcname
, struct sockaddr_storage
*pss
,
1072 struct dc_name_ip
**dcs
, int *num
)
1076 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name
, dcname
))) {
1077 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname
));
1081 /* Make sure there's no duplicates in the list */
1082 for (i
=0; i
<*num
; i
++)
1084 (struct sockaddr
*)(void *)&(*dcs
)[i
].ss
,
1085 (struct sockaddr
*)(void *)pss
))
1088 *dcs
= talloc_realloc(mem_ctx
, *dcs
, struct dc_name_ip
, (*num
)+1);
1093 fstrcpy((*dcs
)[*num
].name
, dcname
);
1094 (*dcs
)[*num
].ss
= *pss
;
1099 static bool add_sockaddr_to_array(TALLOC_CTX
*mem_ctx
,
1100 struct sockaddr_storage
*pss
, uint16 port
,
1101 struct sockaddr_storage
**addrs
, int *num
)
1103 *addrs
= talloc_realloc(mem_ctx
, *addrs
, struct sockaddr_storage
, (*num
)+1);
1105 if (*addrs
== NULL
) {
1110 (*addrs
)[*num
] = *pss
;
1111 set_sockaddr_port((struct sockaddr
*)&(*addrs
)[*num
], port
);
1117 /*******************************************************************
1118 convert an ip to a name
1119 *******************************************************************/
1121 static bool dcip_to_name(TALLOC_CTX
*mem_ctx
,
1122 const struct winbindd_domain
*domain
,
1123 struct sockaddr_storage
*pss
,
1126 struct ip_service ip_list
;
1127 uint32_t nt_version
= NETLOGON_NT_VERSION_1
;
1129 const char *dc_name
;
1135 /* For active directory servers, try to get the ldap server name.
1136 None of these failures should be considered critical for now */
1138 if (lp_security() == SEC_ADS
) {
1140 ADS_STATUS ads_status
;
1141 char addr
[INET6_ADDRSTRLEN
];
1143 print_sockaddr(addr
, sizeof(addr
), pss
);
1145 ads
= ads_init(domain
->alt_name
, domain
->name
, addr
);
1146 ads
->auth
.flags
|= ADS_AUTH_NO_BIND
;
1148 ads_status
= ads_connect(ads
);
1149 if (ADS_ERR_OK(ads_status
)) {
1150 /* We got a cldap packet. */
1151 *name
= talloc_strdup(mem_ctx
,
1152 ads
->config
.ldap_server_name
);
1153 if (*name
== NULL
) {
1156 namecache_store(*name
, 0x20, 1, &ip_list
);
1158 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads
->config
.flags
));
1160 if (domain
->primary
&& (ads
->config
.flags
& NBT_SERVER_KDC
)) {
1161 if (ads_closest_dc(ads
)) {
1162 char *sitename
= sitename_fetch(ads
->config
.realm
);
1164 /* We're going to use this KDC for this realm/domain.
1165 If we are using sites, then force the krb5 libs
1168 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1174 SAFE_FREE(sitename
);
1176 /* use an off site KDC */
1177 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1183 winbindd_set_locator_kdc_envs(domain
);
1185 /* Ensure we contact this DC also. */
1186 saf_store(domain
->name
, *name
);
1187 saf_store(domain
->alt_name
, *name
);
1190 ads_destroy( &ads
);
1194 ads_destroy( &ads
);
1199 status
= nbt_getdc(winbind_messaging_context(), 10, pss
, domain
->name
,
1200 &domain
->sid
, nt_version
, mem_ctx
, &nt_version
,
1202 if (NT_STATUS_IS_OK(status
)) {
1203 *name
= talloc_strdup(mem_ctx
, dc_name
);
1204 if (*name
== NULL
) {
1207 namecache_store(*name
, 0x20, 1, &ip_list
);
1211 /* try node status request */
1213 if (name_status_find(domain
->name
, 0x1c, 0x20, pss
, *name
) ) {
1214 namecache_store(*name
, 0x20, 1, &ip_list
);
1220 /*******************************************************************
1221 Retrieve a list of IP addresses for domain controllers.
1223 The array is sorted in the preferred connection order.
1225 @param[in] mem_ctx talloc memory context to allocate from
1226 @param[in] domain domain to retrieve DCs for
1227 @param[out] dcs array of dcs that will be returned
1228 @param[out] num_dcs number of dcs returned in the dcs array
1230 *******************************************************************/
1232 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
1233 struct dc_name_ip
**dcs
, int *num_dcs
)
1236 struct sockaddr_storage ss
;
1237 struct ip_service
*ip_list
= NULL
;
1238 int iplist_size
= 0;
1241 enum security_types sec
= (enum security_types
)lp_security();
1243 is_our_domain
= strequal(domain
->name
, lp_workgroup());
1245 /* If not our domain, get the preferred DC, by asking our primary DC */
1247 && get_dc_name_via_netlogon(domain
, dcname
, &ss
)
1248 && add_one_dc_unique(mem_ctx
, domain
->name
, dcname
, &ss
, dcs
,
1251 char addr
[INET6_ADDRSTRLEN
];
1252 print_sockaddr(addr
, sizeof(addr
), &ss
);
1253 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1258 if (sec
== SEC_ADS
) {
1259 char *sitename
= NULL
;
1261 /* We need to make sure we know the local site before
1262 doing any DNS queries, as this will restrict the
1263 get_sorted_dc_list() call below to only fetching
1264 DNS records for the correct site. */
1266 /* Find any DC to get the site record.
1267 We deliberately don't care about the
1270 get_dc_name(domain
->name
, domain
->alt_name
, dcname
, &ss
);
1272 sitename
= sitename_fetch(domain
->alt_name
);
1275 /* Do the site-specific AD dns lookup first. */
1276 get_sorted_dc_list(domain
->alt_name
, sitename
, &ip_list
,
1277 &iplist_size
, True
);
1279 /* Add ips to the DC array. We don't look up the name
1280 of the DC in this function, but we fill in the char*
1281 of the ip now to make the failed connection cache
1283 for ( i
=0; i
<iplist_size
; i
++ ) {
1284 char addr
[INET6_ADDRSTRLEN
];
1285 print_sockaddr(addr
, sizeof(addr
),
1287 add_one_dc_unique(mem_ctx
,
1296 SAFE_FREE(sitename
);
1300 /* Now we add DCs from the main AD DNS lookup. */
1301 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1302 &iplist_size
, True
);
1304 for ( i
=0; i
<iplist_size
; i
++ ) {
1305 char addr
[INET6_ADDRSTRLEN
];
1306 print_sockaddr(addr
, sizeof(addr
),
1308 add_one_dc_unique(mem_ctx
,
1320 /* Try standard netbios queries if no ADS and fall back to DNS queries
1321 * if alt_name is available */
1322 if (*num_dcs
== 0) {
1323 get_sorted_dc_list(domain
->name
, NULL
, &ip_list
, &iplist_size
,
1325 if (iplist_size
== 0) {
1326 if (domain
->alt_name
!= NULL
) {
1327 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
,
1328 &iplist_size
, true);
1332 for ( i
=0; i
<iplist_size
; i
++ ) {
1333 char addr
[INET6_ADDRSTRLEN
];
1334 print_sockaddr(addr
, sizeof(addr
),
1336 add_one_dc_unique(mem_ctx
,
1351 /*******************************************************************
1352 Find and make a connection to a DC in the given domain.
1354 @param[in] mem_ctx talloc memory context to allocate from
1355 @param[in] domain domain to find a dc in
1356 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1357 @param[out] pss DC Internet address and port
1358 @param[out] fd fd of the open socket connected to the newly found dc
1359 @return true when a DC connection is made, false otherwise
1360 *******************************************************************/
1362 static bool find_new_dc(TALLOC_CTX
*mem_ctx
,
1363 struct winbindd_domain
*domain
,
1364 char **dcname
, struct sockaddr_storage
*pss
, int *fd
)
1366 struct dc_name_ip
*dcs
= NULL
;
1369 const char **dcnames
= NULL
;
1370 int num_dcnames
= 0;
1372 struct sockaddr_storage
*addrs
= NULL
;
1383 if (!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
) || (num_dcs
== 0))
1386 for (i
=0; i
<num_dcs
; i
++) {
1388 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1389 &dcnames
, &num_dcnames
)) {
1392 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, TCP_SMB_PORT
,
1393 &addrs
, &num_addrs
)) {
1398 if ((num_dcnames
== 0) || (num_dcnames
!= num_addrs
))
1401 if ((addrs
== NULL
) || (dcnames
== NULL
))
1404 status
= smbsock_any_connect(addrs
, dcnames
, NULL
, NULL
, NULL
,
1405 num_addrs
, 0, 10, fd
, &fd_index
, NULL
);
1406 if (!NT_STATUS_IS_OK(status
)) {
1407 for (i
=0; i
<num_dcs
; i
++) {
1408 char ab
[INET6_ADDRSTRLEN
];
1409 print_sockaddr(ab
, sizeof(ab
), &dcs
[i
].ss
);
1410 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1411 "domain %s address %s. Error was %s\n",
1412 domain
->name
, ab
, nt_errstr(status
) ));
1413 winbind_add_failed_connection_entry(domain
,
1414 dcs
[i
].name
, NT_STATUS_UNSUCCESSFUL
);
1419 *pss
= addrs
[fd_index
];
1421 if (*dcnames
[fd_index
] != '\0' && !is_ipaddress(dcnames
[fd_index
])) {
1422 /* Ok, we've got a name for the DC */
1423 *dcname
= talloc_strdup(mem_ctx
, dcnames
[fd_index
]);
1424 if (*dcname
== NULL
) {
1430 /* Try to figure out the name */
1431 if (dcip_to_name(mem_ctx
, domain
, pss
, dcname
)) {
1435 /* We can not continue without the DC's name */
1436 winbind_add_failed_connection_entry(domain
, dcs
[fd_index
].name
,
1437 NT_STATUS_UNSUCCESSFUL
);
1439 /* Throw away all arrays as we're doing this again. */
1443 TALLOC_FREE(dcnames
);
1455 static char *current_dc_key(TALLOC_CTX
*mem_ctx
, const char *domain_name
)
1457 return talloc_asprintf_strupper_m(mem_ctx
, "CURRENT_DCNAME/%s",
1461 static void store_current_dc_in_gencache(const char *domain_name
,
1462 const char *dc_name
,
1463 struct cli_state
*cli
)
1465 char addr
[INET6_ADDRSTRLEN
];
1469 if (!cli_state_is_connected(cli
)) {
1473 print_sockaddr(addr
, sizeof(addr
),
1474 smbXcli_conn_remote_sockaddr(cli
->conn
));
1476 key
= current_dc_key(talloc_tos(), domain_name
);
1481 value
= talloc_asprintf(talloc_tos(), "%s %s", addr
, dc_name
);
1482 if (value
== NULL
) {
1486 gencache_set(key
, value
, 0x7fffffff);
1492 bool fetch_current_dc_from_gencache(TALLOC_CTX
*mem_ctx
,
1493 const char *domain_name
,
1494 char **p_dc_name
, char **p_dc_ip
)
1496 char *key
, *value
, *p
;
1498 char *dc_name
= NULL
;
1501 key
= current_dc_key(talloc_tos(), domain_name
);
1505 if (!gencache_get(key
, &value
, NULL
)) {
1508 p
= strchr(value
, ' ');
1512 dc_ip
= talloc_strndup(mem_ctx
, value
, p
- value
);
1513 if (dc_ip
== NULL
) {
1516 dc_name
= talloc_strdup(mem_ctx
, p
+1);
1517 if (dc_name
== NULL
) {
1521 if (p_dc_ip
!= NULL
) {
1525 if (p_dc_name
!= NULL
) {
1526 *p_dc_name
= dc_name
;
1531 TALLOC_FREE(dc_name
);
1537 static NTSTATUS
cm_open_connection(struct winbindd_domain
*domain
,
1538 struct winbindd_cm_conn
*new_conn
)
1540 TALLOC_CTX
*mem_ctx
;
1542 char *saf_servername
= saf_fetch( domain
->name
);
1545 if ((mem_ctx
= talloc_init("cm_open_connection")) == NULL
) {
1546 SAFE_FREE(saf_servername
);
1547 set_domain_offline(domain
);
1548 return NT_STATUS_NO_MEMORY
;
1551 /* we have to check the server affinity cache here since
1552 later we select a DC based on response time and not preference */
1554 /* Check the negative connection cache
1555 before talking to it. It going down may have
1556 triggered the reconnection. */
1558 if ( saf_servername
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, saf_servername
))) {
1560 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1561 saf_servername
, domain
->name
));
1563 /* convert an ip address to a name */
1564 if (is_ipaddress( saf_servername
) ) {
1565 char *dcname
= NULL
;
1566 struct sockaddr_storage ss
;
1568 if (!interpret_string_addr(&ss
, saf_servername
,
1570 return NT_STATUS_UNSUCCESSFUL
;
1572 if (dcip_to_name(mem_ctx
, domain
, &ss
, &dcname
)) {
1573 domain
->dcname
= talloc_strdup(domain
,
1575 if (domain
->dcname
== NULL
) {
1576 SAFE_FREE(saf_servername
);
1577 return NT_STATUS_NO_MEMORY
;
1580 winbind_add_failed_connection_entry(
1581 domain
, saf_servername
,
1582 NT_STATUS_UNSUCCESSFUL
);
1585 domain
->dcname
= talloc_strdup(domain
, saf_servername
);
1586 if (domain
->dcname
== NULL
) {
1587 SAFE_FREE(saf_servername
);
1588 return NT_STATUS_NO_MEMORY
;
1592 SAFE_FREE( saf_servername
);
1595 for (retries
= 0; retries
< 3; retries
++) {
1598 char *dcname
= NULL
;
1600 result
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1602 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1603 domain
->dcname
? domain
->dcname
: "", domain
->name
));
1605 if (domain
->dcname
!= NULL
1606 && NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, domain
->dcname
))
1607 && (resolve_name(domain
->dcname
, &domain
->dcaddr
, 0x20, true)))
1611 status
= smbsock_connect(&domain
->dcaddr
, 0,
1614 if (!NT_STATUS_IS_OK(status
)) {
1620 !find_new_dc(mem_ctx
, domain
, &dcname
, &domain
->dcaddr
, &fd
))
1622 /* This is the one place where we will
1623 set the global winbindd offline state
1624 to true, if a "WINBINDD_OFFLINE" entry
1625 is found in the winbindd cache. */
1626 set_global_winbindd_state_offline();
1629 if (dcname
!= NULL
) {
1630 talloc_free(domain
->dcname
);
1632 domain
->dcname
= talloc_move(domain
, &dcname
);
1633 if (domain
->dcname
== NULL
) {
1634 result
= NT_STATUS_NO_MEMORY
;
1639 new_conn
->cli
= NULL
;
1641 result
= cm_prepare_connection(domain
, fd
, domain
->dcname
,
1642 &new_conn
->cli
, &retry
);
1643 if (!NT_STATUS_IS_OK(result
)) {
1644 /* Don't leak the smb connection socket */
1652 if (NT_STATUS_IS_OK(result
)) {
1654 winbindd_set_locator_kdc_envs(domain
);
1656 if (domain
->online
== False
) {
1657 /* We're changing state from offline to online. */
1658 set_global_winbindd_state_online();
1660 set_domain_online(domain
);
1663 * Much as I hate global state, this seems to be the point
1664 * where we can be certain that we have a proper connection to
1665 * a DC. wbinfo --dc-info needs that information, store it in
1666 * gencache with a looong timeout. This will need revisiting
1667 * once we start to connect to multiple DCs, wbcDcInfo is
1668 * already prepared for that.
1670 store_current_dc_in_gencache(domain
->name
, domain
->dcname
,
1673 /* Ensure we setup the retry handler. */
1674 set_domain_offline(domain
);
1677 talloc_destroy(mem_ctx
);
1681 /* Close down all open pipes on a connection. */
1683 void invalidate_cm_connection(struct winbindd_cm_conn
*conn
)
1687 /* We're closing down a possibly dead
1688 connection. Don't have impossibly long (10s) timeouts. */
1691 cli_set_timeout(conn
->cli
, 1000); /* 1 second. */
1694 if (conn
->samr_pipe
!= NULL
) {
1695 if (is_valid_policy_hnd(&conn
->sam_connect_handle
)) {
1696 dcerpc_samr_Close(conn
->samr_pipe
->binding_handle
,
1698 &conn
->sam_connect_handle
,
1701 TALLOC_FREE(conn
->samr_pipe
);
1702 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1704 cli_set_timeout(conn
->cli
, 500);
1708 if (conn
->lsa_pipe
!= NULL
) {
1709 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1710 dcerpc_lsa_Close(conn
->lsa_pipe
->binding_handle
,
1715 TALLOC_FREE(conn
->lsa_pipe
);
1716 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1718 cli_set_timeout(conn
->cli
, 500);
1722 if (conn
->lsa_pipe_tcp
!= NULL
) {
1723 if (is_valid_policy_hnd(&conn
->lsa_policy
)) {
1724 dcerpc_lsa_Close(conn
->lsa_pipe_tcp
->binding_handle
,
1729 TALLOC_FREE(conn
->lsa_pipe_tcp
);
1730 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1732 cli_set_timeout(conn
->cli
, 500);
1736 if (conn
->netlogon_pipe
!= NULL
) {
1737 TALLOC_FREE(conn
->netlogon_pipe
);
1738 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1740 cli_set_timeout(conn
->cli
, 500);
1745 cli_shutdown(conn
->cli
);
1751 void close_conns_after_fork(void)
1753 struct winbindd_domain
*domain
;
1754 struct winbindd_cli_state
*cli_state
;
1756 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
1758 * first close the low level SMB TCP connection
1759 * so that we don't generate any SMBclose
1760 * requests in invalidate_cm_connection()
1762 if (cli_state_is_connected(domain
->conn
.cli
)) {
1763 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
1766 invalidate_cm_connection(&domain
->conn
);
1769 for (cli_state
= winbindd_client_list();
1771 cli_state
= cli_state
->next
) {
1772 if (cli_state
->sock
>= 0) {
1773 close(cli_state
->sock
);
1774 cli_state
->sock
= -1;
1779 static bool connection_ok(struct winbindd_domain
*domain
)
1783 ok
= cli_state_is_connected(domain
->conn
.cli
);
1785 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1786 domain
->dcname
, domain
->name
));
1790 if (domain
->online
== False
) {
1791 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain
->name
));
1798 /* Initialize a new connection up to the RPC BIND.
1799 Bypass online status check so always does network calls. */
1801 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
)
1805 /* Internal connections never use the network. */
1806 if (domain
->internal
) {
1807 domain
->initialized
= True
;
1808 return NT_STATUS_OK
;
1811 if (connection_ok(domain
)) {
1812 if (!domain
->initialized
) {
1813 set_dc_type_and_flags(domain
);
1815 return NT_STATUS_OK
;
1818 invalidate_cm_connection(&domain
->conn
);
1820 result
= cm_open_connection(domain
, &domain
->conn
);
1822 if (NT_STATUS_IS_OK(result
) && !domain
->initialized
) {
1823 set_dc_type_and_flags(domain
);
1829 NTSTATUS
init_dc_connection(struct winbindd_domain
*domain
)
1831 if (domain
->internal
) {
1832 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
1835 if (domain
->initialized
&& !domain
->online
) {
1836 /* We check for online status elsewhere. */
1837 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1840 return init_dc_connection_network(domain
);
1843 static NTSTATUS
init_dc_connection_rpc(struct winbindd_domain
*domain
)
1847 status
= init_dc_connection(domain
);
1848 if (!NT_STATUS_IS_OK(status
)) {
1852 if (!domain
->internal
&& domain
->conn
.cli
== NULL
) {
1853 /* happens for trusted domains without inbound trust */
1854 return NT_STATUS_TRUSTED_DOMAIN_FAILURE
;
1857 return NT_STATUS_OK
;
1860 /******************************************************************************
1861 Set the trust flags (direction and forest location) for a domain
1862 ******************************************************************************/
1864 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain
*domain
)
1866 struct winbindd_domain
*our_domain
;
1867 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1869 struct netr_DomainTrustList trusts
;
1871 uint32 flags
= (NETR_TRUST_FLAG_IN_FOREST
|
1872 NETR_TRUST_FLAG_OUTBOUND
|
1873 NETR_TRUST_FLAG_INBOUND
);
1874 struct rpc_pipe_client
*cli
;
1875 TALLOC_CTX
*mem_ctx
= NULL
;
1876 struct dcerpc_binding_handle
*b
;
1878 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain
->name
));
1880 /* Our primary domain doesn't need to worry about trust flags.
1881 Force it to go through the network setup */
1882 if ( domain
->primary
) {
1886 our_domain
= find_our_domain();
1888 if ( !connection_ok(our_domain
) ) {
1889 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1893 /* This won't work unless our domain is AD */
1895 if ( !our_domain
->active_directory
) {
1899 /* Use DsEnumerateDomainTrusts to get us the trust direction
1902 result
= cm_connect_netlogon(our_domain
, &cli
);
1904 if (!NT_STATUS_IS_OK(result
)) {
1905 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1906 "a connection to %s for PIPE_NETLOGON (%s)\n",
1907 domain
->name
, nt_errstr(result
)));
1911 b
= cli
->binding_handle
;
1913 if ( (mem_ctx
= talloc_init("set_dc_type_and_flags_trustinfo")) == NULL
) {
1914 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1918 result
= dcerpc_netr_DsrEnumerateDomainTrusts(b
, mem_ctx
,
1923 if (!NT_STATUS_IS_OK(result
)) {
1924 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1925 "failed to query trusted domain list: %s\n",
1926 nt_errstr(result
)));
1927 talloc_destroy(mem_ctx
);
1930 if (!W_ERROR_IS_OK(werr
)) {
1931 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1932 "failed to query trusted domain list: %s\n",
1934 talloc_destroy(mem_ctx
);
1938 /* Now find the domain name and get the flags */
1940 for ( i
=0; i
<trusts
.count
; i
++ ) {
1941 if ( strequal( domain
->name
, trusts
.array
[i
].netbios_name
) ) {
1942 domain
->domain_flags
= trusts
.array
[i
].trust_flags
;
1943 domain
->domain_type
= trusts
.array
[i
].trust_type
;
1944 domain
->domain_trust_attribs
= trusts
.array
[i
].trust_attributes
;
1946 if ( domain
->domain_type
== NETR_TRUST_TYPE_UPLEVEL
)
1947 domain
->active_directory
= True
;
1949 /* This flag is only set if the domain is *our*
1950 primary domain and the primary domain is in
1953 domain
->native_mode
= (domain
->domain_flags
& NETR_TRUST_FLAG_NATIVE
);
1955 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1956 "native mode.\n", domain
->name
,
1957 domain
->native_mode
? "" : "NOT "));
1959 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1960 "running active directory.\n", domain
->name
,
1961 domain
->active_directory
? "" : "NOT "));
1963 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
1964 domain
->can_do_validation6
= domain
->active_directory
;
1966 domain
->initialized
= True
;
1972 talloc_destroy( mem_ctx
);
1974 return domain
->initialized
;
1977 /******************************************************************************
1978 We can 'sense' certain things about the DC by it's replies to certain
1981 This tells us if this particular remote server is Active Directory, and if it
1983 ******************************************************************************/
1985 static void set_dc_type_and_flags_connect( struct winbindd_domain
*domain
)
1987 NTSTATUS status
, result
;
1989 TALLOC_CTX
*mem_ctx
= NULL
;
1990 struct rpc_pipe_client
*cli
= NULL
;
1991 struct policy_handle pol
;
1992 union dssetup_DsRoleInfo info
;
1993 union lsa_PolicyInformation
*lsa_info
= NULL
;
1995 if (!connection_ok(domain
)) {
1999 mem_ctx
= talloc_init("set_dc_type_and_flags on domain %s\n",
2002 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
2006 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain
->name
));
2008 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
2009 &ndr_table_dssetup
.syntax_id
,
2012 if (!NT_STATUS_IS_OK(status
)) {
2013 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2014 "PI_DSSETUP on domain %s: (%s)\n",
2015 domain
->name
, nt_errstr(status
)));
2017 /* if this is just a non-AD domain we need to continue
2018 * identifying so that we can in the end return with
2019 * domain->initialized = True - gd */
2024 status
= dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli
->binding_handle
, mem_ctx
,
2025 DS_ROLE_BASIC_INFORMATION
,
2030 if (NT_STATUS_IS_OK(status
)) {
2031 result
= werror_to_ntstatus(werr
);
2033 if (!NT_STATUS_IS_OK(status
)) {
2034 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
2035 "on domain %s failed: (%s)\n",
2036 domain
->name
, nt_errstr(status
)));
2038 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
2039 * every opcode on the DSSETUP pipe, continue with
2040 * no_dssetup mode here as well to get domain->initialized
2043 if (NT_STATUS_EQUAL(status
, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
)) {
2047 TALLOC_FREE(mem_ctx
);
2051 if ((info
.basic
.flags
& DS_ROLE_PRIMARY_DS_RUNNING
) &&
2052 !(info
.basic
.flags
& DS_ROLE_PRIMARY_DS_MIXED_MODE
)) {
2053 domain
->native_mode
= True
;
2055 domain
->native_mode
= False
;
2059 status
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
,
2060 &ndr_table_lsarpc
.syntax_id
, &cli
);
2062 if (!NT_STATUS_IS_OK(status
)) {
2063 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2064 "PI_LSARPC on domain %s: (%s)\n",
2065 domain
->name
, nt_errstr(status
)));
2067 TALLOC_FREE(mem_ctx
);
2071 status
= rpccli_lsa_open_policy2(cli
, mem_ctx
, True
,
2072 SEC_FLAG_MAXIMUM_ALLOWED
, &pol
);
2074 if (NT_STATUS_IS_OK(status
)) {
2075 /* This particular query is exactly what Win2k clients use
2076 to determine that the DC is active directory */
2077 status
= dcerpc_lsa_QueryInfoPolicy2(cli
->binding_handle
, mem_ctx
,
2079 LSA_POLICY_INFO_DNS
,
2084 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2085 domain
->active_directory
= True
;
2087 if (lsa_info
->dns
.name
.string
) {
2088 talloc_free(domain
->name
);
2089 domain
->name
= talloc_strdup(domain
,
2090 lsa_info
->dns
.name
.string
);
2091 if (domain
->name
== NULL
) {
2096 if (lsa_info
->dns
.dns_domain
.string
) {
2097 talloc_free(domain
->alt_name
);
2099 talloc_strdup(domain
,
2100 lsa_info
->dns
.dns_domain
.string
);
2101 if (domain
->alt_name
== NULL
) {
2106 /* See if we can set some domain trust flags about
2109 if (lsa_info
->dns
.dns_forest
.string
) {
2110 talloc_free(domain
->forest_name
);
2111 domain
->forest_name
=
2112 talloc_strdup(domain
,
2113 lsa_info
->dns
.dns_forest
.string
);
2114 if (domain
->forest_name
== NULL
) {
2118 if (strequal(domain
->forest_name
, domain
->alt_name
)) {
2119 domain
->domain_flags
|= NETR_TRUST_FLAG_TREEROOT
;
2123 if (lsa_info
->dns
.sid
) {
2124 sid_copy(&domain
->sid
, lsa_info
->dns
.sid
);
2127 domain
->active_directory
= False
;
2129 status
= rpccli_lsa_open_policy(cli
, mem_ctx
, True
,
2130 SEC_FLAG_MAXIMUM_ALLOWED
,
2133 if (!NT_STATUS_IS_OK(status
)) {
2137 status
= dcerpc_lsa_QueryInfoPolicy(cli
->binding_handle
, mem_ctx
,
2139 LSA_POLICY_INFO_ACCOUNT_DOMAIN
,
2142 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2144 if (lsa_info
->account_domain
.name
.string
) {
2145 talloc_free(domain
->name
);
2147 talloc_strdup(domain
,
2148 lsa_info
->account_domain
.name
.string
);
2151 if (lsa_info
->account_domain
.sid
) {
2152 sid_copy(&domain
->sid
, lsa_info
->account_domain
.sid
);
2158 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2159 domain
->name
, domain
->native_mode
? "" : "NOT "));
2161 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2162 domain
->name
, domain
->active_directory
? "" : "NOT "));
2164 domain
->can_do_ncacn_ip_tcp
= domain
->active_directory
;
2165 domain
->can_do_validation6
= domain
->active_directory
;
2169 TALLOC_FREE(mem_ctx
);
2171 domain
->initialized
= True
;
2174 /**********************************************************************
2175 Set the domain_flags (trust attributes, domain operating modes, etc...
2176 ***********************************************************************/
2178 static void set_dc_type_and_flags( struct winbindd_domain
*domain
)
2180 /* we always have to contact our primary domain */
2182 if ( domain
->primary
) {
2183 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2184 "primary domain\n"));
2185 set_dc_type_and_flags_connect( domain
);
2189 /* Use our DC to get the information if possible */
2191 if ( !set_dc_type_and_flags_trustinfo( domain
) ) {
2192 /* Otherwise, fallback to contacting the
2194 set_dc_type_and_flags_connect( domain
);
2202 /**********************************************************************
2203 ***********************************************************************/
2205 static NTSTATUS
cm_get_schannel_creds(struct winbindd_domain
*domain
,
2206 struct netlogon_creds_CredentialState
**ppdc
)
2208 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2209 struct rpc_pipe_client
*netlogon_pipe
;
2211 if (lp_client_schannel() == False
) {
2212 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2215 result
= cm_connect_netlogon(domain
, &netlogon_pipe
);
2216 if (!NT_STATUS_IS_OK(result
)) {
2220 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2223 if (!domain
->conn
.netlogon_pipe
->dc
) {
2224 return NT_STATUS_INTERNAL_ERROR
; /* This shouldn't happen. */
2227 *ppdc
= domain
->conn
.netlogon_pipe
->dc
;
2228 return NT_STATUS_OK
;
2231 NTSTATUS
cm_connect_sam(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2232 struct rpc_pipe_client
**cli
, struct policy_handle
*sam_handle
)
2234 struct winbindd_cm_conn
*conn
;
2235 NTSTATUS status
, result
;
2236 struct netlogon_creds_CredentialState
*p_creds
;
2237 char *machine_password
= NULL
;
2238 char *machine_account
= NULL
;
2239 const char *domain_name
= NULL
;
2241 if (sid_check_is_our_sam(&domain
->sid
)) {
2242 return open_internal_samr_conn(mem_ctx
, domain
, cli
, sam_handle
);
2245 status
= init_dc_connection_rpc(domain
);
2246 if (!NT_STATUS_IS_OK(status
)) {
2250 conn
= &domain
->conn
;
2252 if (rpccli_is_connected(conn
->samr_pipe
)) {
2256 TALLOC_FREE(conn
->samr_pipe
);
2259 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2260 * sign and sealed pipe using the machine account password by
2261 * preference. If we can't - try schannel, if that fails, try
2265 if ((conn
->cli
->user_name
[0] == '\0') ||
2266 (conn
->cli
->domain
[0] == '\0') ||
2267 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0'))
2269 status
= get_trust_creds(domain
, &machine_password
,
2270 &machine_account
, NULL
);
2271 if (!NT_STATUS_IS_OK(status
)) {
2272 DEBUG(10, ("cm_connect_sam: No no user available for "
2273 "domain %s, trying schannel\n", conn
->cli
->domain
));
2276 domain_name
= domain
->name
;
2278 machine_password
= SMB_STRDUP(conn
->cli
->password
);
2279 machine_account
= SMB_STRDUP(conn
->cli
->user_name
);
2280 domain_name
= conn
->cli
->domain
;
2283 if (!machine_password
|| !machine_account
) {
2284 status
= NT_STATUS_NO_MEMORY
;
2288 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2289 authenticated SAMR pipe with sign & seal. */
2290 status
= cli_rpc_pipe_open_spnego(conn
->cli
,
2294 DCERPC_AUTH_LEVEL_PRIVACY
,
2295 smbXcli_conn_remote_name(conn
->cli
->conn
),
2301 if (!NT_STATUS_IS_OK(status
)) {
2302 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2303 "pipe for domain %s using NTLMSSP "
2304 "authenticated pipe: user %s\\%s. Error was "
2305 "%s\n", domain
->name
, domain_name
,
2306 machine_account
, nt_errstr(status
)));
2310 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2311 "domain %s using NTLMSSP authenticated "
2312 "pipe: user %s\\%s\n", domain
->name
,
2313 domain_name
, machine_account
));
2315 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2316 conn
->samr_pipe
->desthost
,
2317 SEC_FLAG_MAXIMUM_ALLOWED
,
2318 &conn
->sam_connect_handle
,
2320 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2323 if (NT_STATUS_IS_OK(status
)) {
2327 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2328 "failed for domain %s, error was %s. Trying schannel\n",
2329 domain
->name
, nt_errstr(status
) ));
2330 TALLOC_FREE(conn
->samr_pipe
);
2334 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2336 status
= cm_get_schannel_creds(domain
, &p_creds
);
2337 if (!NT_STATUS_IS_OK(status
)) {
2338 /* If this call fails - conn->cli can now be NULL ! */
2339 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2340 "for domain %s (error %s), trying anon\n",
2342 nt_errstr(status
) ));
2345 status
= cli_rpc_pipe_open_schannel_with_key
2346 (conn
->cli
, &ndr_table_samr
.syntax_id
, NCACN_NP
,
2347 DCERPC_AUTH_LEVEL_PRIVACY
,
2348 domain
->name
, &p_creds
, &conn
->samr_pipe
);
2350 if (!NT_STATUS_IS_OK(status
)) {
2351 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2352 "domain %s using schannel. Error was %s\n",
2353 domain
->name
, nt_errstr(status
) ));
2356 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2357 "schannel.\n", domain
->name
));
2359 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2360 conn
->samr_pipe
->desthost
,
2361 SEC_FLAG_MAXIMUM_ALLOWED
,
2362 &conn
->sam_connect_handle
,
2364 if (NT_STATUS_IS_OK(status
) && NT_STATUS_IS_OK(result
)) {
2367 if (NT_STATUS_IS_OK(status
)) {
2370 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2371 "for domain %s, error was %s. Trying anonymous\n",
2372 domain
->name
, nt_errstr(status
) ));
2373 TALLOC_FREE(conn
->samr_pipe
);
2377 /* Finally fall back to anonymous. */
2378 status
= cli_rpc_pipe_open_noauth(conn
->cli
, &ndr_table_samr
.syntax_id
,
2381 if (!NT_STATUS_IS_OK(status
)) {
2385 status
= dcerpc_samr_Connect2(conn
->samr_pipe
->binding_handle
, mem_ctx
,
2386 conn
->samr_pipe
->desthost
,
2387 SEC_FLAG_MAXIMUM_ALLOWED
,
2388 &conn
->sam_connect_handle
,
2390 if (!NT_STATUS_IS_OK(status
)) {
2391 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2392 "for domain %s Error was %s\n",
2393 domain
->name
, nt_errstr(status
) ));
2396 if (!NT_STATUS_IS_OK(result
)) {
2398 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2399 "for domain %s Error was %s\n",
2400 domain
->name
, nt_errstr(result
)));
2405 status
= dcerpc_samr_OpenDomain(conn
->samr_pipe
->binding_handle
,
2407 &conn
->sam_connect_handle
,
2408 SEC_FLAG_MAXIMUM_ALLOWED
,
2410 &conn
->sam_domain_handle
,
2412 if (!NT_STATUS_IS_OK(status
)) {
2419 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
2421 * if we got access denied, we might just have no access rights
2422 * to talk to the remote samr server server (e.g. when we are a
2423 * PDC and we are connecting a w2k8 pdc via an interdomain
2424 * trust). In that case do not invalidate the whole connection
2427 TALLOC_FREE(conn
->samr_pipe
);
2428 ZERO_STRUCT(conn
->sam_domain_handle
);
2430 } else if (!NT_STATUS_IS_OK(status
)) {
2431 invalidate_cm_connection(conn
);
2435 *cli
= conn
->samr_pipe
;
2436 *sam_handle
= conn
->sam_domain_handle
;
2437 SAFE_FREE(machine_password
);
2438 SAFE_FREE(machine_account
);
2442 /**********************************************************************
2443 open an schanneld ncacn_ip_tcp connection to LSA
2444 ***********************************************************************/
2446 NTSTATUS
cm_connect_lsa_tcp(struct winbindd_domain
*domain
,
2447 TALLOC_CTX
*mem_ctx
,
2448 struct rpc_pipe_client
**cli
)
2450 struct winbindd_cm_conn
*conn
;
2451 struct netlogon_creds_CredentialState
*creds
;
2454 DEBUG(10,("cm_connect_lsa_tcp\n"));
2456 status
= init_dc_connection_rpc(domain
);
2457 if (!NT_STATUS_IS_OK(status
)) {
2461 conn
= &domain
->conn
;
2463 if (conn
->lsa_pipe_tcp
&&
2464 conn
->lsa_pipe_tcp
->transport
->transport
== NCACN_IP_TCP
&&
2465 conn
->lsa_pipe_tcp
->auth
->auth_level
== DCERPC_AUTH_LEVEL_PRIVACY
&&
2466 rpccli_is_connected(conn
->lsa_pipe_tcp
)) {
2470 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2472 status
= cm_get_schannel_creds(domain
, &creds
);
2473 if (!NT_STATUS_IS_OK(status
)) {
2477 status
= cli_rpc_pipe_open_schannel_with_key(conn
->cli
,
2478 &ndr_table_lsarpc
.syntax_id
,
2480 DCERPC_AUTH_LEVEL_PRIVACY
,
2483 &conn
->lsa_pipe_tcp
);
2484 if (!NT_STATUS_IS_OK(status
)) {
2485 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2486 nt_errstr(status
)));
2491 if (!NT_STATUS_IS_OK(status
)) {
2492 TALLOC_FREE(conn
->lsa_pipe_tcp
);
2496 *cli
= conn
->lsa_pipe_tcp
;
2501 NTSTATUS
cm_connect_lsa(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2502 struct rpc_pipe_client
**cli
, struct policy_handle
*lsa_policy
)
2504 struct winbindd_cm_conn
*conn
;
2505 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2506 struct netlogon_creds_CredentialState
*p_creds
;
2508 result
= init_dc_connection_rpc(domain
);
2509 if (!NT_STATUS_IS_OK(result
))
2512 conn
= &domain
->conn
;
2514 if (rpccli_is_connected(conn
->lsa_pipe
)) {
2518 TALLOC_FREE(conn
->lsa_pipe
);
2520 if ((conn
->cli
->user_name
[0] == '\0') ||
2521 (conn
->cli
->domain
[0] == '\0') ||
2522 (conn
->cli
->password
== NULL
|| conn
->cli
->password
[0] == '\0')) {
2523 DEBUG(10, ("cm_connect_lsa: No no user available for "
2524 "domain %s, trying schannel\n", conn
->cli
->domain
));
2528 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2529 * authenticated LSA pipe with sign & seal. */
2530 result
= cli_rpc_pipe_open_spnego
2531 (conn
->cli
, &ndr_table_lsarpc
, NCACN_NP
,
2533 DCERPC_AUTH_LEVEL_PRIVACY
,
2534 smbXcli_conn_remote_name(conn
->cli
->conn
),
2535 conn
->cli
->domain
, conn
->cli
->user_name
, conn
->cli
->password
,
2538 if (!NT_STATUS_IS_OK(result
)) {
2539 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2540 "domain %s using NTLMSSP authenticated pipe: user "
2541 "%s\\%s. Error was %s. Trying schannel.\n",
2542 domain
->name
, conn
->cli
->domain
,
2543 conn
->cli
->user_name
, nt_errstr(result
)));
2547 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2548 "NTLMSSP authenticated pipe: user %s\\%s\n",
2549 domain
->name
, conn
->cli
->domain
, conn
->cli
->user_name
));
2551 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2552 SEC_FLAG_MAXIMUM_ALLOWED
,
2554 if (NT_STATUS_IS_OK(result
)) {
2558 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2561 TALLOC_FREE(conn
->lsa_pipe
);
2565 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2567 result
= cm_get_schannel_creds(domain
, &p_creds
);
2568 if (!NT_STATUS_IS_OK(result
)) {
2569 /* If this call fails - conn->cli can now be NULL ! */
2570 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2571 "for domain %s (error %s), trying anon\n",
2573 nt_errstr(result
) ));
2576 result
= cli_rpc_pipe_open_schannel_with_key
2577 (conn
->cli
, &ndr_table_lsarpc
.syntax_id
, NCACN_NP
,
2578 DCERPC_AUTH_LEVEL_PRIVACY
,
2579 domain
->name
, &p_creds
, &conn
->lsa_pipe
);
2581 if (!NT_STATUS_IS_OK(result
)) {
2582 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2583 "domain %s using schannel. Error was %s\n",
2584 domain
->name
, nt_errstr(result
) ));
2587 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2588 "schannel.\n", domain
->name
));
2590 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2591 SEC_FLAG_MAXIMUM_ALLOWED
,
2593 if (NT_STATUS_IS_OK(result
)) {
2597 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2600 TALLOC_FREE(conn
->lsa_pipe
);
2604 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2605 &ndr_table_lsarpc
.syntax_id
,
2607 if (!NT_STATUS_IS_OK(result
)) {
2608 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2612 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2613 SEC_FLAG_MAXIMUM_ALLOWED
,
2616 if (!NT_STATUS_IS_OK(result
)) {
2617 invalidate_cm_connection(conn
);
2621 *cli
= conn
->lsa_pipe
;
2622 *lsa_policy
= conn
->lsa_policy
;
2626 /****************************************************************************
2627 Open a LSA connection to a DC, suiteable for LSA lookup calls.
2628 ****************************************************************************/
2630 NTSTATUS
cm_connect_lsat(struct winbindd_domain
*domain
,
2631 TALLOC_CTX
*mem_ctx
,
2632 struct rpc_pipe_client
**cli
,
2633 struct policy_handle
*lsa_policy
)
2637 if (domain
->can_do_ncacn_ip_tcp
) {
2638 status
= cm_connect_lsa_tcp(domain
, mem_ctx
, cli
);
2639 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
) ||
2640 NT_STATUS_EQUAL(status
, NT_STATUS_RPC_SEC_PKG_ERROR
) ||
2641 NT_STATUS_EQUAL(status
, NT_STATUS_NETWORK_ACCESS_DENIED
)) {
2642 invalidate_cm_connection(&domain
->conn
);
2643 status
= cm_connect_lsa_tcp(domain
, mem_ctx
, cli
);
2645 if (!NT_STATUS_IS_OK(status
)) {
2649 return NT_STATUS_OK
;
2652 status
= cm_connect_lsa(domain
, mem_ctx
, cli
, lsa_policy
);
2657 /****************************************************************************
2658 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2659 session key stored in conn->netlogon_pipe->dc->sess_key.
2660 ****************************************************************************/
2662 NTSTATUS
cm_connect_netlogon(struct winbindd_domain
*domain
,
2663 struct rpc_pipe_client
**cli
)
2665 struct winbindd_cm_conn
*conn
;
2668 uint32_t neg_flags
= NETLOGON_NEG_AUTH2_ADS_FLAGS
| NETLOGON_NEG_SUPPORTS_AES
;
2669 uint8_t mach_pwd
[16];
2670 enum netr_SchannelType sec_chan_type
;
2671 const char *account_name
;
2672 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
2676 result
= init_dc_connection_rpc(domain
);
2677 if (!NT_STATUS_IS_OK(result
)) {
2681 conn
= &domain
->conn
;
2683 if (rpccli_is_connected(conn
->netlogon_pipe
)) {
2684 *cli
= conn
->netlogon_pipe
;
2685 return NT_STATUS_OK
;
2688 TALLOC_FREE(conn
->netlogon_pipe
);
2690 result
= cli_rpc_pipe_open_noauth(conn
->cli
,
2691 &ndr_table_netlogon
.syntax_id
,
2693 if (!NT_STATUS_IS_OK(result
)) {
2697 if ((!IS_DC
) && (!domain
->primary
)) {
2698 /* Clear the schannel request bit and drop down */
2699 neg_flags
&= ~NETLOGON_NEG_SCHANNEL
;
2703 if (lp_client_schannel() != False
) {
2704 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
2707 if (!get_trust_pw_hash(domain
->name
, mach_pwd
, &account_name
,
2710 TALLOC_FREE(netlogon_pipe
);
2711 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2714 result
= rpccli_netlogon_setup_creds(
2716 domain
->dcname
, /* server name. */
2717 domain
->name
, /* domain name */
2718 lp_netbios_name(), /* client name */
2719 account_name
, /* machine account */
2720 mach_pwd
, /* machine password */
2721 sec_chan_type
, /* from get_trust_pw */
2724 if (!NT_STATUS_IS_OK(result
)) {
2725 TALLOC_FREE(netlogon_pipe
);
2729 if ((lp_client_schannel() == True
) &&
2730 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2731 DEBUG(3, ("Server did not offer schannel\n"));
2732 TALLOC_FREE(netlogon_pipe
);
2733 return NT_STATUS_ACCESS_DENIED
;
2737 if ((lp_client_schannel() == False
) ||
2738 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2740 * NetSamLogonEx only works for schannel
2742 domain
->can_do_samlogon_ex
= False
;
2744 /* We're done - just keep the existing connection to NETLOGON
2746 conn
->netlogon_pipe
= netlogon_pipe
;
2747 *cli
= conn
->netlogon_pipe
;
2748 return NT_STATUS_OK
;
2751 /* Using the credentials from the first pipe, open a signed and sealed
2752 second netlogon pipe. The session key is stored in the schannel
2753 part of the new pipe auth struct.
2756 result
= cli_rpc_pipe_open_schannel_with_key(
2757 conn
->cli
, &ndr_table_netlogon
.syntax_id
, NCACN_NP
,
2758 DCERPC_AUTH_LEVEL_PRIVACY
, domain
->name
, &netlogon_pipe
->dc
,
2759 &conn
->netlogon_pipe
);
2761 /* We can now close the initial netlogon pipe. */
2762 TALLOC_FREE(netlogon_pipe
);
2764 if (!NT_STATUS_IS_OK(result
)) {
2765 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2766 "was %s\n", nt_errstr(result
)));
2768 invalidate_cm_connection(conn
);
2773 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2774 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2775 * supported). We used to only try SamLogonEx for AD, but
2776 * Samba DCs can also do it. And because we don't distinguish
2777 * between Samba and NT4, always try it once.
2779 domain
->can_do_samlogon_ex
= true;
2781 *cli
= conn
->netlogon_pipe
;
2782 return NT_STATUS_OK
;
2785 void winbind_msg_ip_dropped(struct messaging_context
*msg_ctx
,
2788 struct server_id server_id
,
2791 struct winbindd_domain
*domain
;
2792 char *freeit
= NULL
;
2796 || (data
->data
== NULL
)
2797 || (data
->length
== 0)
2798 || (data
->data
[data
->length
-1] != '\0')) {
2799 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2804 addr
= (char *)data
->data
;
2805 DEBUG(10, ("IP %s dropped\n", addr
));
2807 if (!is_ipaddress(addr
)) {
2810 * Some code sends us ip addresses with the /netmask
2813 slash
= strchr(addr
, '/');
2814 if (slash
== NULL
) {
2815 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2819 freeit
= talloc_strndup(talloc_tos(), addr
, slash
-addr
);
2820 if (freeit
== NULL
) {
2821 DEBUG(1, ("talloc failed\n"));
2825 DEBUG(10, ("Stripped /netmask to IP %s\n", addr
));
2828 for (domain
= domain_list(); domain
!= NULL
; domain
= domain
->next
) {
2829 char sockaddr
[INET6_ADDRSTRLEN
];
2831 if (!cli_state_is_connected(domain
->conn
.cli
)) {
2835 print_sockaddr(sockaddr
, sizeof(sockaddr
),
2836 smbXcli_conn_local_sockaddr(domain
->conn
.cli
->conn
));
2838 if (strequal(sockaddr
, addr
)) {
2839 smbXcli_conn_disconnect(domain
->conn
.cli
->conn
, NT_STATUS_OK
);
2842 TALLOC_FREE(freeit
);