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
65 #define DBGC_CLASS DBGC_WINBIND
69 struct sockaddr_storage ss
;
72 extern struct winbindd_methods reconnect_methods
;
73 extern bool override_logfile
;
75 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
);
76 static void set_dc_type_and_flags( struct winbindd_domain
*domain
);
77 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
78 struct dc_name_ip
**dcs
, int *num_dcs
);
80 /****************************************************************
81 Child failed to find DC's. Reschedule check.
82 ****************************************************************/
84 static void msg_failed_to_go_online(struct messaging_context
*msg
,
87 struct server_id server_id
,
90 struct winbindd_domain
*domain
;
91 const char *domainname
= (const char *)data
->data
;
93 if (data
->data
== NULL
|| data
->length
== 0) {
97 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname
));
99 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
100 if (domain
->internal
) {
104 if (strequal(domain
->name
, domainname
)) {
105 if (domain
->online
) {
106 /* We're already online, ignore. */
107 DEBUG(5,("msg_fail_to_go_online: domain %s "
108 "already online.\n", domainname
));
112 /* Reschedule the online check. */
113 set_domain_offline(domain
);
119 /****************************************************************
120 Actually cause a reconnect from a message.
121 ****************************************************************/
123 static void msg_try_to_go_online(struct messaging_context
*msg
,
126 struct server_id server_id
,
129 struct winbindd_domain
*domain
;
130 const char *domainname
= (const char *)data
->data
;
132 if (data
->data
== NULL
|| data
->length
== 0) {
136 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname
));
138 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
139 if (domain
->internal
) {
143 if (strequal(domain
->name
, domainname
)) {
145 if (domain
->online
) {
146 /* We're already online, ignore. */
147 DEBUG(5,("msg_try_to_go_online: domain %s "
148 "already online.\n", domainname
));
152 /* This call takes care of setting the online
153 flag to true if we connected, or re-adding
154 the offline handler if false. Bypasses online
155 check so always does network calls. */
157 init_dc_connection_network(domain
);
163 /****************************************************************
164 Fork a child to try and contact a DC. Do this as contacting a
165 DC requires blocking lookups and we don't want to block our
167 ****************************************************************/
169 static bool fork_child_dc_connect(struct winbindd_domain
*domain
)
171 struct dc_name_ip
*dcs
= NULL
;
173 TALLOC_CTX
*mem_ctx
= NULL
;
175 pid_t parent_pid
= sys_getpid();
180 child_pid
= sys_fork();
182 if (child_pid
== -1) {
183 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno
)));
187 if (child_pid
!= 0) {
189 messaging_register(winbind_messaging_context(), NULL
,
190 MSG_WINBIND_TRY_TO_GO_ONLINE
,
191 msg_try_to_go_online
);
192 messaging_register(winbind_messaging_context(), NULL
,
193 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
194 msg_failed_to_go_online
);
200 /* Leave messages blocked - we will never process one. */
202 if (!reinit_after_fork(winbind_messaging_context())) {
203 DEBUG(0,("reinit_after_fork() failed\n"));
207 close_conns_after_fork();
209 if (!override_logfile
) {
211 if (asprintf(&logfile
, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) > 0) {
212 lp_set_logfile(logfile
);
218 mem_ctx
= talloc_init("fork_child_dc_connect");
220 DEBUG(0,("talloc_init failed.\n"));
224 if ((!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
)) || (num_dcs
== 0)) {
225 /* Still offline ? Can't find DC's. */
226 messaging_send_buf(winbind_messaging_context(),
227 pid_to_procid(parent_pid
),
228 MSG_WINBIND_FAILED_TO_GO_ONLINE
,
229 (uint8
*)domain
->name
,
230 strlen(domain
->name
)+1);
234 /* We got a DC. Send a message to our parent to get it to
235 try and do the same. */
237 messaging_send_buf(winbind_messaging_context(),
238 pid_to_procid(parent_pid
),
239 MSG_WINBIND_TRY_TO_GO_ONLINE
,
240 (uint8
*)domain
->name
,
241 strlen(domain
->name
)+1);
245 /****************************************************************
246 Handler triggered if we're offline to try and detect a DC.
247 ****************************************************************/
249 static void check_domain_online_handler(struct event_context
*ctx
,
250 struct timed_event
*te
,
251 const struct timeval
*now
,
254 struct winbindd_domain
*domain
=
255 (struct winbindd_domain
*)private_data
;
257 DEBUG(10,("check_domain_online_handler: called for domain "
258 "%s (online = %s)\n", domain
->name
,
259 domain
->online
? "True" : "False" ));
261 TALLOC_FREE(domain
->check_online_event
);
263 /* Are we still in "startup" mode ? */
265 if (domain
->startup
&& (now
->tv_sec
> domain
->startup_time
+ 30)) {
266 /* No longer in "startup" mode. */
267 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
269 domain
->startup
= False
;
272 /* We've been told to stay offline, so stay
275 if (get_global_winbindd_state_offline()) {
276 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
281 /* Fork a child to test if it can contact a DC.
282 If it can then send ourselves a message to
283 cause a reconnect. */
285 fork_child_dc_connect(domain
);
288 /****************************************************************
289 If we're still offline setup the timeout check.
290 ****************************************************************/
292 static void calc_new_online_timeout_check(struct winbindd_domain
*domain
)
294 int wbc
= lp_winbind_cache_time();
296 if (domain
->startup
) {
297 domain
->check_online_timeout
= 10;
298 } else if (domain
->check_online_timeout
< wbc
) {
299 domain
->check_online_timeout
= wbc
;
303 /****************************************************************
304 Set domain offline and also add handler to put us back online
306 ****************************************************************/
308 void set_domain_offline(struct winbindd_domain
*domain
)
310 DEBUG(10,("set_domain_offline: called for domain %s\n",
313 TALLOC_FREE(domain
->check_online_event
);
315 if (domain
->internal
) {
316 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
321 domain
->online
= False
;
323 /* Offline domains are always initialized. They're
324 re-initialized when they go back online. */
326 domain
->initialized
= True
;
328 /* We only add the timeout handler that checks and
329 allows us to go back online when we've not
330 been told to remain offline. */
332 if (get_global_winbindd_state_offline()) {
333 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
338 /* If we're in statup mode, check again in 10 seconds, not in
339 lp_winbind_cache_time() seconds (which is 5 mins by default). */
341 calc_new_online_timeout_check(domain
);
343 domain
->check_online_event
= event_add_timed(winbind_event_context(),
345 timeval_current_ofs(domain
->check_online_timeout
,0),
346 "check_domain_online_handler",
347 check_domain_online_handler
,
350 /* The above *has* to succeed for winbindd to work. */
351 if (!domain
->check_online_event
) {
352 smb_panic("set_domain_offline: failed to add online handler");
355 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
358 /* Send an offline message to the idmap child when our
359 primary domain goes offline */
361 if ( domain
->primary
) {
362 struct winbindd_child
*idmap
= idmap_child();
364 if ( idmap
->pid
!= 0 ) {
365 messaging_send_buf(winbind_messaging_context(),
366 pid_to_procid(idmap
->pid
),
368 (uint8
*)domain
->name
,
369 strlen(domain
->name
)+1);
376 /****************************************************************
377 Set domain online - if allowed.
378 ****************************************************************/
380 static void set_domain_online(struct winbindd_domain
*domain
)
384 DEBUG(10,("set_domain_online: called for domain %s\n",
387 if (domain
->internal
) {
388 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
393 if (get_global_winbindd_state_offline()) {
394 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
399 winbindd_set_locator_kdc_envs(domain
);
401 /* If we are waiting to get a krb5 ticket, trigger immediately. */
403 set_event_dispatch_time(winbind_event_context(),
404 "krb5_ticket_gain_handler", now
);
406 /* Ok, we're out of any startup mode now... */
407 domain
->startup
= False
;
409 if (domain
->online
== False
) {
410 /* We were offline - now we're online. We default to
411 using the MS-RPC backend if we started offline,
412 and if we're going online for the first time we
413 should really re-initialize the backends and the
414 checks to see if we're talking to an AD or NT domain.
417 domain
->initialized
= False
;
419 /* 'reconnect_methods' is the MS-RPC backend. */
420 if (domain
->backend
== &reconnect_methods
) {
421 domain
->backend
= NULL
;
425 /* Ensure we have no online timeout checks. */
426 domain
->check_online_timeout
= 0;
427 TALLOC_FREE(domain
->check_online_event
);
429 /* Ensure we ignore any pending child messages. */
430 messaging_deregister(winbind_messaging_context(),
431 MSG_WINBIND_TRY_TO_GO_ONLINE
, NULL
);
432 messaging_deregister(winbind_messaging_context(),
433 MSG_WINBIND_FAILED_TO_GO_ONLINE
, NULL
);
435 domain
->online
= True
;
437 /* Send an online message to the idmap child when our
438 primary domain comes online */
440 if ( domain
->primary
) {
441 struct winbindd_child
*idmap
= idmap_child();
443 if ( idmap
->pid
!= 0 ) {
444 messaging_send_buf(winbind_messaging_context(),
445 pid_to_procid(idmap
->pid
),
447 (uint8
*)domain
->name
,
448 strlen(domain
->name
)+1);
455 /****************************************************************
456 Requested to set a domain online.
457 ****************************************************************/
459 void set_domain_online_request(struct winbindd_domain
*domain
)
463 DEBUG(10,("set_domain_online_request: called for domain %s\n",
466 if (get_global_winbindd_state_offline()) {
467 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
472 /* We've been told it's safe to go online and
473 try and connect to a DC. But I don't believe it
474 because network manager seems to lie.
475 Wait at least 5 seconds. Heuristics suck... */
477 if (!domain
->check_online_event
) {
478 /* If we've come from being globally offline we
479 don't have a check online event handler set.
480 We need to add one now we're trying to go
483 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
486 domain
->check_online_event
= event_add_timed(winbind_event_context(),
488 timeval_current_ofs(5, 0),
489 "check_domain_online_handler",
490 check_domain_online_handler
,
493 /* The above *has* to succeed for winbindd to work. */
494 if (!domain
->check_online_event
) {
495 smb_panic("set_domain_online_request: failed to add online handler");
501 /* Go into "startup" mode again. */
502 domain
->startup_time
= tev
.tv_sec
;
503 domain
->startup
= True
;
507 set_event_dispatch_time(winbind_event_context(), "check_domain_online_handler", tev
);
510 /****************************************************************
511 Add -ve connection cache entries for domain and realm.
512 ****************************************************************/
514 void winbind_add_failed_connection_entry(const struct winbindd_domain
*domain
,
518 add_failed_connection_entry(domain
->name
, server
, result
);
519 /* If this was the saf name for the last thing we talked to,
521 saf_delete(domain
->name
);
522 if (*domain
->alt_name
) {
523 add_failed_connection_entry(domain
->alt_name
, server
, result
);
524 saf_delete(domain
->alt_name
);
526 winbindd_unset_locator_kdc_env(domain
);
529 /* Choose between anonymous or authenticated connections. We need to use
530 an authenticated connection if DCs have the RestrictAnonymous registry
531 entry set > 0, or the "Additional restrictions for anonymous
532 connections" set in the win2k Local Security Policy.
534 Caller to free() result in domain, username, password
537 static void cm_get_ipc_userpass(char **username
, char **domain
, char **password
)
539 *username
= (char *)secrets_fetch(SECRETS_AUTH_USER
, NULL
);
540 *domain
= (char *)secrets_fetch(SECRETS_AUTH_DOMAIN
, NULL
);
541 *password
= (char *)secrets_fetch(SECRETS_AUTH_PASSWORD
, NULL
);
543 if (*username
&& **username
) {
545 if (!*domain
|| !**domain
)
546 *domain
= smb_xstrdup(lp_workgroup());
548 if (!*password
|| !**password
)
549 *password
= smb_xstrdup("");
551 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
552 *domain
, *username
));
555 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
556 *username
= smb_xstrdup("");
557 *domain
= smb_xstrdup("");
558 *password
= smb_xstrdup("");
562 static bool get_dc_name_via_netlogon(struct winbindd_domain
*domain
,
564 struct sockaddr_storage
*dc_ss
)
566 struct winbindd_domain
*our_domain
= NULL
;
567 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
571 unsigned int orig_timeout
;
572 const char *tmp
= NULL
;
575 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
582 if (domain
->primary
) {
586 our_domain
= find_our_domain();
588 if ((mem_ctx
= talloc_init("get_dc_name_via_netlogon")) == NULL
) {
592 result
= cm_connect_netlogon(our_domain
, &netlogon_pipe
);
593 if (!NT_STATUS_IS_OK(result
)) {
594 talloc_destroy(mem_ctx
);
598 /* This call can take a long time - allow the server to time out.
599 35 seconds should do it. */
601 orig_timeout
= rpccli_set_timeout(netlogon_pipe
, 35000);
603 if (our_domain
->active_directory
) {
604 struct netr_DsRGetDCNameInfo
*domain_info
= NULL
;
606 result
= rpccli_netr_DsRGetDCName(netlogon_pipe
,
615 if (W_ERROR_IS_OK(werr
)) {
617 mem_ctx
, domain_info
->dc_unc
);
619 DEBUG(0, ("talloc_strdup failed\n"));
620 talloc_destroy(mem_ctx
);
623 if (strlen(domain
->alt_name
) == 0) {
624 fstrcpy(domain
->alt_name
,
625 domain_info
->domain_name
);
627 if (strlen(domain
->forest_name
) == 0) {
628 fstrcpy(domain
->forest_name
,
629 domain_info
->forest_name
);
633 result
= rpccli_netr_GetAnyDCName(netlogon_pipe
, mem_ctx
,
640 /* And restore our original timeout. */
641 rpccli_set_timeout(netlogon_pipe
, orig_timeout
);
643 if (!NT_STATUS_IS_OK(result
)) {
644 DEBUG(10,("rpccli_netr_GetAnyDCName failed: %s\n",
646 talloc_destroy(mem_ctx
);
650 if (!W_ERROR_IS_OK(werr
)) {
651 DEBUG(10,("rpccli_netr_GetAnyDCName failed: %s\n",
653 talloc_destroy(mem_ctx
);
657 /* rpccli_netr_GetAnyDCName gives us a name with \\ */
668 talloc_destroy(mem_ctx
);
670 DEBUG(10,("rpccli_netr_GetAnyDCName returned %s\n", dcname
));
672 if (!resolve_name(dcname
, dc_ss
, 0x20)) {
680 * Helper function to assemble trust password and account name
682 static NTSTATUS
get_trust_creds(const struct winbindd_domain
*domain
,
683 char **machine_password
,
684 char **machine_account
,
685 char **machine_krb5_principal
)
687 const char *account_name
;
688 const char *name
= NULL
;
690 /* If we are a DC and this is not our own domain */
695 struct winbindd_domain
*our_domain
= find_our_domain();
698 return NT_STATUS_INVALID_SERVER_STATE
;
700 name
= our_domain
->name
;
703 if (!get_trust_pw_clear(name
, machine_password
,
704 &account_name
, NULL
))
706 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
709 if ((machine_account
!= NULL
) &&
710 (asprintf(machine_account
, "%s$", account_name
) == -1))
712 return NT_STATUS_NO_MEMORY
;
715 /* this is at least correct when domain is our domain,
716 * which is the only case, when this is currently used: */
717 if (machine_krb5_principal
!= NULL
)
719 if (asprintf(machine_krb5_principal
, "%s$@%s",
720 account_name
, domain
->alt_name
) == -1)
722 return NT_STATUS_NO_MEMORY
;
725 strupper_m(*machine_krb5_principal
);
731 /************************************************************************
732 Given a fd with a just-connected TCP connection to a DC, open a connection
734 ************************************************************************/
736 static NTSTATUS
cm_prepare_connection(const struct winbindd_domain
*domain
,
738 const char *controller
,
739 struct cli_state
**cli
,
742 char *machine_password
= NULL
;
743 char *machine_krb5_principal
= NULL
;
744 char *machine_account
= NULL
;
745 char *ipc_username
= NULL
;
746 char *ipc_domain
= NULL
;
747 char *ipc_password
= NULL
;
749 struct named_mutex
*mutex
;
751 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
753 struct sockaddr peeraddr
;
754 socklen_t peeraddr_len
;
756 struct sockaddr_in
*peeraddr_in
= (struct sockaddr_in
*)&peeraddr
;
758 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
759 controller
, domain
->name
));
763 mutex
= grab_named_mutex(talloc_tos(), controller
,
764 WINBIND_SERVER_MUTEX_WAIT_TIME
);
766 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
768 result
= NT_STATUS_POSSIBLE_DEADLOCK
;
772 if ((*cli
= cli_initialise()) == NULL
) {
773 DEBUG(1, ("Could not cli_initialize\n"));
774 result
= NT_STATUS_NO_MEMORY
;
778 (*cli
)->timeout
= 10000; /* 10 seconds */
780 fstrcpy((*cli
)->desthost
, controller
);
781 (*cli
)->use_kerberos
= True
;
783 peeraddr_len
= sizeof(peeraddr
);
785 if ((getpeername((*cli
)->fd
, &peeraddr
, &peeraddr_len
) != 0) ||
786 (peeraddr_len
!= sizeof(struct sockaddr_in
)) ||
787 (peeraddr_in
->sin_family
!= PF_INET
))
789 DEBUG(0,("cm_prepare_connection: %s\n", strerror(errno
)));
790 result
= NT_STATUS_UNSUCCESSFUL
;
794 if (ntohs(peeraddr_in
->sin_port
) == 139) {
795 struct nmb_name calling
;
796 struct nmb_name called
;
798 make_nmb_name(&calling
, global_myname(), 0x0);
799 make_nmb_name(&called
, "*SMBSERVER", 0x20);
801 if (!cli_session_request(*cli
, &calling
, &called
)) {
802 DEBUG(8, ("cli_session_request failed for %s\n",
804 result
= NT_STATUS_UNSUCCESSFUL
;
809 cli_setup_signing_state(*cli
, Undefined
);
811 if (!cli_negprot(*cli
)) {
812 DEBUG(1, ("cli_negprot failed\n"));
813 result
= NT_STATUS_UNSUCCESSFUL
;
817 if (!is_trusted_domain_situation(domain
->name
) &&
818 (*cli
)->protocol
>= PROTOCOL_NT1
&&
819 (*cli
)->capabilities
& CAP_EXTENDED_SECURITY
)
821 ADS_STATUS ads_status
;
823 result
= get_trust_creds(domain
, &machine_password
,
825 &machine_krb5_principal
);
826 if (!NT_STATUS_IS_OK(result
)) {
830 if (lp_security() == SEC_ADS
) {
832 /* Try a krb5 session */
834 (*cli
)->use_kerberos
= True
;
835 DEBUG(5, ("connecting to %s from %s with kerberos principal "
836 "[%s]\n", controller
, global_myname(),
837 machine_krb5_principal
));
839 winbindd_set_locator_kdc_envs(domain
);
841 ads_status
= cli_session_setup_spnego(*cli
,
842 machine_krb5_principal
,
846 if (!ADS_ERR_OK(ads_status
)) {
847 DEBUG(4,("failed kerberos session setup with %s\n",
848 ads_errstr(ads_status
)));
851 result
= ads_ntstatus(ads_status
);
852 if (NT_STATUS_IS_OK(result
)) {
853 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
854 cli_init_creds(*cli
, machine_account
, domain
->name
, machine_password
);
855 goto session_setup_done
;
859 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
860 (*cli
)->use_kerberos
= False
;
862 DEBUG(5, ("connecting to %s from %s with username "
863 "[%s]\\[%s]\n", controller
, global_myname(),
864 domain
->name
, machine_account
));
866 ads_status
= cli_session_setup_spnego(*cli
,
870 if (!ADS_ERR_OK(ads_status
)) {
871 DEBUG(4, ("authenticated session setup failed with %s\n",
872 ads_errstr(ads_status
)));
875 result
= ads_ntstatus(ads_status
);
876 if (NT_STATUS_IS_OK(result
)) {
877 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
878 cli_init_creds(*cli
, machine_account
, domain
->name
, machine_password
);
879 goto session_setup_done
;
883 /* Fall back to non-kerberos session setup with auth_user */
885 (*cli
)->use_kerberos
= False
;
887 cm_get_ipc_userpass(&ipc_username
, &ipc_domain
, &ipc_password
);
889 if ((((*cli
)->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) != 0) &&
890 (strlen(ipc_username
) > 0)) {
892 /* Only try authenticated if we have a username */
894 DEBUG(5, ("connecting to %s from %s with username "
895 "[%s]\\[%s]\n", controller
, global_myname(),
896 ipc_domain
, ipc_username
));
898 if (NT_STATUS_IS_OK(cli_session_setup(
900 ipc_password
, strlen(ipc_password
)+1,
901 ipc_password
, strlen(ipc_password
)+1,
903 /* Successful logon with given username. */
904 cli_init_creds(*cli
, ipc_username
, ipc_domain
, ipc_password
);
905 goto session_setup_done
;
907 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
908 ipc_domain
, ipc_username
));
914 /* Fall back to anonymous connection, this might fail later */
916 if (NT_STATUS_IS_OK(cli_session_setup(*cli
, "", NULL
, 0,
918 DEBUG(5, ("Connected anonymously\n"));
919 cli_init_creds(*cli
, "", "", "");
920 goto session_setup_done
;
923 result
= cli_nt_error(*cli
);
925 if (NT_STATUS_IS_OK(result
))
926 result
= NT_STATUS_UNSUCCESSFUL
;
928 /* We can't session setup */
934 /* cache the server name for later connections */
936 saf_store( domain
->name
, (*cli
)->desthost
);
937 if (domain
->alt_name
&& (*cli
)->use_kerberos
) {
938 saf_store( domain
->alt_name
, (*cli
)->desthost
);
941 winbindd_set_locator_kdc_envs(domain
);
943 if (!cli_send_tconX(*cli
, "IPC$", "IPC", "", 0)) {
945 result
= cli_nt_error(*cli
);
947 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result
)));
949 if (NT_STATUS_IS_OK(result
))
950 result
= NT_STATUS_UNSUCCESSFUL
;
958 /* set the domain if empty; needed for schannel connections */
959 if ( !*(*cli
)->domain
) {
960 fstrcpy( (*cli
)->domain
, domain
->name
);
963 result
= NT_STATUS_OK
;
967 SAFE_FREE(machine_account
);
968 SAFE_FREE(machine_password
);
969 SAFE_FREE(machine_krb5_principal
);
970 SAFE_FREE(ipc_username
);
971 SAFE_FREE(ipc_domain
);
972 SAFE_FREE(ipc_password
);
974 if (!NT_STATUS_IS_OK(result
)) {
975 winbind_add_failed_connection_entry(domain
, controller
, result
);
976 if ((*cli
) != NULL
) {
985 static bool add_one_dc_unique(TALLOC_CTX
*mem_ctx
, const char *domain_name
,
986 const char *dcname
, struct sockaddr_storage
*pss
,
987 struct dc_name_ip
**dcs
, int *num
)
989 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name
, dcname
))) {
990 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname
));
994 *dcs
= TALLOC_REALLOC_ARRAY(mem_ctx
, *dcs
, struct dc_name_ip
, (*num
)+1);
999 fstrcpy((*dcs
)[*num
].name
, dcname
);
1000 (*dcs
)[*num
].ss
= *pss
;
1005 static bool add_sockaddr_to_array(TALLOC_CTX
*mem_ctx
,
1006 struct sockaddr_storage
*pss
, uint16 port
,
1007 struct sockaddr_storage
**addrs
, int *num
)
1009 *addrs
= TALLOC_REALLOC_ARRAY(mem_ctx
, *addrs
, struct sockaddr_storage
, (*num
)+1);
1011 if (*addrs
== NULL
) {
1016 (*addrs
)[*num
] = *pss
;
1017 set_sockaddr_port(&(*addrs
)[*num
], port
);
1023 /*******************************************************************
1024 convert an ip to a name
1025 *******************************************************************/
1027 static bool dcip_to_name(TALLOC_CTX
*mem_ctx
,
1028 const struct winbindd_domain
*domain
,
1029 struct sockaddr_storage
*pss
,
1032 struct ip_service ip_list
;
1038 /* For active directory servers, try to get the ldap server name.
1039 None of these failures should be considered critical for now */
1041 if (lp_security() == SEC_ADS
) {
1043 char addr
[INET6_ADDRSTRLEN
];
1045 print_sockaddr(addr
, sizeof(addr
), pss
);
1047 ads
= ads_init(domain
->alt_name
, domain
->name
, NULL
);
1048 ads
->auth
.flags
|= ADS_AUTH_NO_BIND
;
1050 if (ads_try_connect(ads
, addr
)) {
1051 /* We got a cldap packet. */
1052 fstrcpy(name
, ads
->config
.ldap_server_name
);
1053 namecache_store(name
, 0x20, 1, &ip_list
);
1055 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads
->config
.flags
));
1057 if (domain
->primary
&& (ads
->config
.flags
& NBT_SERVER_KDC
)) {
1058 if (ads_closest_dc(ads
)) {
1059 char *sitename
= sitename_fetch(ads
->config
.realm
);
1061 /* We're going to use this KDC for this realm/domain.
1062 If we are using sites, then force the krb5 libs
1065 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1070 SAFE_FREE(sitename
);
1072 /* use an off site KDC */
1073 create_local_private_krb5_conf_for_domain(domain
->alt_name
,
1078 winbindd_set_locator_kdc_envs(domain
);
1080 /* Ensure we contact this DC also. */
1081 saf_store( domain
->name
, name
);
1082 saf_store( domain
->alt_name
, name
);
1085 ads_destroy( &ads
);
1089 ads_destroy( &ads
);
1093 /* try GETDC requests next */
1095 if (send_getdc_request(mem_ctx
, winbind_messaging_context(),
1096 pss
, domain
->name
, &domain
->sid
)) {
1097 const char *dc_name
= NULL
;
1100 for (i
=0; i
<5; i
++) {
1101 if (receive_getdc_response(mem_ctx
, pss
, domain
->name
, &dc_name
)) {
1102 fstrcpy(name
, dc_name
);
1103 namecache_store(name
, 0x20, 1, &ip_list
);
1110 /* try node status request */
1112 if ( name_status_find(domain
->name
, 0x1c, 0x20, pss
, name
) ) {
1113 namecache_store(name
, 0x20, 1, &ip_list
);
1119 /*******************************************************************
1120 Retreive a list of IP address for domain controllers. Fill in
1121 the dcs[] with results.
1122 *******************************************************************/
1124 static bool get_dcs(TALLOC_CTX
*mem_ctx
, struct winbindd_domain
*domain
,
1125 struct dc_name_ip
**dcs
, int *num_dcs
)
1128 struct sockaddr_storage ss
;
1129 struct ip_service
*ip_list
= NULL
;
1130 int iplist_size
= 0;
1133 enum security_types sec
= (enum security_types
)lp_security();
1135 is_our_domain
= strequal(domain
->name
, lp_workgroup());
1138 && get_dc_name_via_netlogon(domain
, dcname
, &ss
)
1139 && add_one_dc_unique(mem_ctx
, domain
->name
, dcname
, &ss
, dcs
, num_dcs
) )
1141 char addr
[INET6_ADDRSTRLEN
];
1142 print_sockaddr(addr
, sizeof(addr
), &ss
);
1143 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1148 if (sec
== SEC_ADS
) {
1149 char *sitename
= NULL
;
1151 /* We need to make sure we know the local site before
1152 doing any DNS queries, as this will restrict the
1153 get_sorted_dc_list() call below to only fetching
1154 DNS records for the correct site. */
1156 /* Find any DC to get the site record.
1157 We deliberately don't care about the
1160 get_dc_name(domain
->name
, domain
->alt_name
, dcname
, &ss
);
1162 sitename
= sitename_fetch(domain
->alt_name
);
1165 /* Do the site-specific AD dns lookup first. */
1166 get_sorted_dc_list(domain
->alt_name
, sitename
, &ip_list
, &iplist_size
, True
);
1168 for ( i
=0; i
<iplist_size
; i
++ ) {
1169 char addr
[INET6_ADDRSTRLEN
];
1170 print_sockaddr(addr
, sizeof(addr
),
1172 add_one_dc_unique(mem_ctx
,
1181 SAFE_FREE(sitename
);
1185 /* Now we add DCs from the main AD dns lookup. */
1186 get_sorted_dc_list(domain
->alt_name
, NULL
, &ip_list
, &iplist_size
, True
);
1188 for ( i
=0; i
<iplist_size
; i
++ ) {
1189 char addr
[INET6_ADDRSTRLEN
];
1190 print_sockaddr(addr
, sizeof(addr
),
1192 add_one_dc_unique(mem_ctx
,
1201 /* try standard netbios queries if no ADS */
1203 if (iplist_size
==0) {
1204 get_sorted_dc_list(domain
->name
, NULL
, &ip_list
, &iplist_size
, False
);
1207 /* FIXME!! this is where we should re-insert the GETDC requests --jerry */
1209 /* now add to the dc array. We'll wait until the last minute
1210 to look up the name of the DC. But we fill in the char* for
1211 the ip now in to make the failed connection cache work */
1213 for ( i
=0; i
<iplist_size
; i
++ ) {
1214 char addr
[INET6_ADDRSTRLEN
];
1215 print_sockaddr(addr
, sizeof(addr
),
1217 add_one_dc_unique(mem_ctx
, domain
->name
, addr
,
1218 &ip_list
[i
].ss
, dcs
, num_dcs
);
1221 SAFE_FREE( ip_list
);
1226 static bool find_new_dc(TALLOC_CTX
*mem_ctx
,
1227 struct winbindd_domain
*domain
,
1228 fstring dcname
, struct sockaddr_storage
*pss
, int *fd
)
1230 struct dc_name_ip
*dcs
= NULL
;
1233 const char **dcnames
= NULL
;
1234 int num_dcnames
= 0;
1236 struct sockaddr_storage
*addrs
= NULL
;
1242 if (!get_dcs(mem_ctx
, domain
, &dcs
, &num_dcs
) || (num_dcs
== 0))
1245 for (i
=0; i
<num_dcs
; i
++) {
1247 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1248 &dcnames
, &num_dcnames
)) {
1251 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, 445,
1252 &addrs
, &num_addrs
)) {
1256 if (!add_string_to_array(mem_ctx
, dcs
[i
].name
,
1257 &dcnames
, &num_dcnames
)) {
1260 if (!add_sockaddr_to_array(mem_ctx
, &dcs
[i
].ss
, 139,
1261 &addrs
, &num_addrs
)) {
1266 if ((num_dcnames
== 0) || (num_dcnames
!= num_addrs
))
1269 if ((addrs
== NULL
) || (dcnames
== NULL
))
1272 /* 5 second timeout. */
1273 if (!open_any_socket_out(addrs
, num_addrs
, 5000, &fd_index
, fd
) ) {
1274 for (i
=0; i
<num_dcs
; i
++) {
1275 char ab
[INET6_ADDRSTRLEN
];
1276 print_sockaddr(ab
, sizeof(ab
), &dcs
[i
].ss
);
1277 DEBUG(10, ("find_new_dc: open_any_socket_out failed for "
1278 "domain %s address %s. Error was %s\n",
1279 domain
->name
, ab
, strerror(errno
) ));
1280 winbind_add_failed_connection_entry(domain
,
1281 dcs
[i
].name
, NT_STATUS_UNSUCCESSFUL
);
1286 *pss
= addrs
[fd_index
];
1288 if (*dcnames
[fd_index
] != '\0' && !is_ipaddress(dcnames
[fd_index
])) {
1289 /* Ok, we've got a name for the DC */
1290 fstrcpy(dcname
, dcnames
[fd_index
]);
1294 /* Try to figure out the name */
1295 if (dcip_to_name(mem_ctx
, domain
, pss
, dcname
)) {
1299 /* We can not continue without the DC's name */
1300 winbind_add_failed_connection_entry(domain
, dcs
[fd_index
].name
,
1301 NT_STATUS_UNSUCCESSFUL
);
1305 static NTSTATUS
cm_open_connection(struct winbindd_domain
*domain
,
1306 struct winbindd_cm_conn
*new_conn
)
1308 TALLOC_CTX
*mem_ctx
;
1310 char *saf_servername
= saf_fetch( domain
->name
);
1313 if ((mem_ctx
= talloc_init("cm_open_connection")) == NULL
) {
1314 SAFE_FREE(saf_servername
);
1315 set_domain_offline(domain
);
1316 return NT_STATUS_NO_MEMORY
;
1319 /* we have to check the server affinity cache here since
1320 later we selecte a DC based on response time and not preference */
1322 /* Check the negative connection cache
1323 before talking to it. It going down may have
1324 triggered the reconnection. */
1326 if ( saf_servername
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, saf_servername
))) {
1328 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1329 saf_servername
, domain
->name
));
1331 /* convert an ip address to a name */
1332 if (is_ipaddress( saf_servername
) ) {
1334 struct sockaddr_storage ss
;
1336 if (!interpret_string_addr(&ss
, saf_servername
,
1338 return NT_STATUS_UNSUCCESSFUL
;
1340 if (dcip_to_name(mem_ctx
, domain
, &ss
, saf_name
)) {
1341 fstrcpy( domain
->dcname
, saf_name
);
1343 winbind_add_failed_connection_entry(
1344 domain
, saf_servername
,
1345 NT_STATUS_UNSUCCESSFUL
);
1348 fstrcpy( domain
->dcname
, saf_servername
);
1351 SAFE_FREE( saf_servername
);
1354 for (retries
= 0; retries
< 3; retries
++) {
1358 result
= NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1360 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1361 domain
->dcname
, domain
->name
));
1364 && NT_STATUS_IS_OK(check_negative_conn_cache( domain
->name
, domain
->dcname
))
1365 && (resolve_name(domain
->dcname
, &domain
->dcaddr
, 0x20)))
1367 struct sockaddr_storage
*addrs
= NULL
;
1371 if (!add_sockaddr_to_array(mem_ctx
, &domain
->dcaddr
, 445, &addrs
, &num_addrs
)) {
1372 set_domain_offline(domain
);
1373 talloc_destroy(mem_ctx
);
1374 return NT_STATUS_NO_MEMORY
;
1376 if (!add_sockaddr_to_array(mem_ctx
, &domain
->dcaddr
, 139, &addrs
, &num_addrs
)) {
1377 set_domain_offline(domain
);
1378 talloc_destroy(mem_ctx
);
1379 return NT_STATUS_NO_MEMORY
;
1382 /* 5 second timeout. */
1383 if (!open_any_socket_out(addrs
, num_addrs
, 5000, &dummy
, &fd
)) {
1389 && !find_new_dc(mem_ctx
, domain
, domain
->dcname
, &domain
->dcaddr
, &fd
))
1391 /* This is the one place where we will
1392 set the global winbindd offline state
1393 to true, if a "WINBINDD_OFFLINE" entry
1394 is found in the winbindd cache. */
1395 set_global_winbindd_state_offline();
1399 new_conn
->cli
= NULL
;
1401 result
= cm_prepare_connection(domain
, fd
, domain
->dcname
,
1402 &new_conn
->cli
, &retry
);
1408 if (NT_STATUS_IS_OK(result
)) {
1410 winbindd_set_locator_kdc_envs(domain
);
1412 if (domain
->online
== False
) {
1413 /* We're changing state from offline to online. */
1414 set_global_winbindd_state_online();
1416 set_domain_online(domain
);
1418 /* Ensure we setup the retry handler. */
1419 set_domain_offline(domain
);
1422 talloc_destroy(mem_ctx
);
1426 /* Close down all open pipes on a connection. */
1428 void invalidate_cm_connection(struct winbindd_cm_conn
*conn
)
1430 /* We're closing down a possibly dead
1431 connection. Don't have impossibly long (10s) timeouts. */
1434 cli_set_timeout(conn
->cli
, 1000); /* 1 second. */
1437 if (conn
->samr_pipe
!= NULL
) {
1438 TALLOC_FREE(conn
->samr_pipe
);
1439 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1441 cli_set_timeout(conn
->cli
, 500);
1445 if (conn
->lsa_pipe
!= NULL
) {
1446 TALLOC_FREE(conn
->lsa_pipe
);
1447 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1449 cli_set_timeout(conn
->cli
, 500);
1453 if (conn
->netlogon_pipe
!= NULL
) {
1454 TALLOC_FREE(conn
->netlogon_pipe
);
1455 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1457 cli_set_timeout(conn
->cli
, 500);
1462 cli_shutdown(conn
->cli
);
1468 void close_conns_after_fork(void)
1470 struct winbindd_domain
*domain
;
1472 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
1473 if (domain
->conn
.cli
== NULL
)
1476 if (domain
->conn
.cli
->fd
== -1)
1479 close(domain
->conn
.cli
->fd
);
1480 domain
->conn
.cli
->fd
= -1;
1484 static bool connection_ok(struct winbindd_domain
*domain
)
1486 if (domain
->conn
.cli
== NULL
) {
1487 DEBUG(8, ("connection_ok: Connection to %s for domain %s has NULL "
1488 "cli!\n", domain
->dcname
, domain
->name
));
1492 if (!domain
->conn
.cli
->initialised
) {
1493 DEBUG(3, ("connection_ok: Connection to %s for domain %s was never "
1494 "initialised!\n", domain
->dcname
, domain
->name
));
1498 if (domain
->conn
.cli
->fd
== -1) {
1499 DEBUG(3, ("connection_ok: Connection to %s for domain %s has died or was "
1500 "never started (fd == -1)\n",
1501 domain
->dcname
, domain
->name
));
1505 if (domain
->online
== False
) {
1506 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain
->name
));
1513 /* Initialize a new connection up to the RPC BIND.
1514 Bypass online status check so always does network calls. */
1516 static NTSTATUS
init_dc_connection_network(struct winbindd_domain
*domain
)
1520 /* Internal connections never use the network. */
1521 if (domain
->internal
) {
1522 domain
->initialized
= True
;
1523 return NT_STATUS_OK
;
1526 if (connection_ok(domain
)) {
1527 if (!domain
->initialized
) {
1528 set_dc_type_and_flags(domain
);
1530 return NT_STATUS_OK
;
1533 invalidate_cm_connection(&domain
->conn
);
1535 result
= cm_open_connection(domain
, &domain
->conn
);
1537 if (NT_STATUS_IS_OK(result
) && !domain
->initialized
) {
1538 set_dc_type_and_flags(domain
);
1544 NTSTATUS
init_dc_connection(struct winbindd_domain
*domain
)
1546 if (domain
->initialized
&& !domain
->online
) {
1547 /* We check for online status elsewhere. */
1548 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
;
1551 return init_dc_connection_network(domain
);
1554 /******************************************************************************
1555 Set the trust flags (direction and forest location) for a domain
1556 ******************************************************************************/
1558 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain
*domain
)
1560 struct winbindd_domain
*our_domain
;
1561 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1562 struct netr_DomainTrustList trusts
;
1564 uint32 flags
= (NETR_TRUST_FLAG_IN_FOREST
|
1565 NETR_TRUST_FLAG_OUTBOUND
|
1566 NETR_TRUST_FLAG_INBOUND
);
1567 struct rpc_pipe_client
*cli
;
1568 TALLOC_CTX
*mem_ctx
= NULL
;
1570 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain
->name
));
1572 /* Our primary domain doesn't need to worry about trust flags.
1573 Force it to go through the network setup */
1574 if ( domain
->primary
) {
1578 our_domain
= find_our_domain();
1580 if ( !connection_ok(our_domain
) ) {
1581 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1585 /* This won't work unless our domain is AD */
1587 if ( !our_domain
->active_directory
) {
1591 /* Use DsEnumerateDomainTrusts to get us the trust direction
1594 result
= cm_connect_netlogon(our_domain
, &cli
);
1596 if (!NT_STATUS_IS_OK(result
)) {
1597 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1598 "a connection to %s for PIPE_NETLOGON (%s)\n",
1599 domain
->name
, nt_errstr(result
)));
1603 if ( (mem_ctx
= talloc_init("set_dc_type_and_flags_trustinfo")) == NULL
) {
1604 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1608 result
= rpccli_netr_DsrEnumerateDomainTrusts(cli
, mem_ctx
,
1613 if (!NT_STATUS_IS_OK(result
)) {
1614 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1615 "failed to query trusted domain list: %s\n",
1616 nt_errstr(result
)));
1617 talloc_destroy(mem_ctx
);
1621 /* Now find the domain name and get the flags */
1623 for ( i
=0; i
<trusts
.count
; i
++ ) {
1624 if ( strequal( domain
->name
, trusts
.array
[i
].netbios_name
) ) {
1625 domain
->domain_flags
= trusts
.array
[i
].trust_flags
;
1626 domain
->domain_type
= trusts
.array
[i
].trust_type
;
1627 domain
->domain_trust_attribs
= trusts
.array
[i
].trust_attributes
;
1629 if ( domain
->domain_type
== NETR_TRUST_TYPE_UPLEVEL
)
1630 domain
->active_directory
= True
;
1632 /* This flag is only set if the domain is *our*
1633 primary domain and the primary domain is in
1636 domain
->native_mode
= (domain
->domain_flags
& NETR_TRUST_FLAG_NATIVE
);
1638 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1639 "native mode.\n", domain
->name
,
1640 domain
->native_mode
? "" : "NOT "));
1642 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1643 "running active directory.\n", domain
->name
,
1644 domain
->active_directory
? "" : "NOT "));
1647 domain
->initialized
= True
;
1649 if ( !winbindd_can_contact_domain( domain
) )
1650 domain
->internal
= True
;
1656 talloc_destroy( mem_ctx
);
1658 return domain
->initialized
;
1661 /******************************************************************************
1662 We can 'sense' certain things about the DC by it's replies to certain
1665 This tells us if this particular remote server is Active Directory, and if it
1667 ******************************************************************************/
1669 static void set_dc_type_and_flags_connect( struct winbindd_domain
*domain
)
1673 TALLOC_CTX
*mem_ctx
= NULL
;
1674 struct rpc_pipe_client
*cli
;
1676 union dssetup_DsRoleInfo info
;
1677 union lsa_PolicyInformation
*lsa_info
= NULL
;
1679 if (!connection_ok(domain
)) {
1683 mem_ctx
= talloc_init("set_dc_type_and_flags on domain %s\n",
1686 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1690 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain
->name
));
1692 cli
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
, PI_DSSETUP
,
1696 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1697 "PI_DSSETUP on domain %s: (%s)\n",
1698 domain
->name
, nt_errstr(result
)));
1700 /* if this is just a non-AD domain we need to continue
1701 * identifying so that we can in the end return with
1702 * domain->initialized = True - gd */
1707 result
= rpccli_dssetup_DsRoleGetPrimaryDomainInformation(cli
, mem_ctx
,
1708 DS_ROLE_BASIC_INFORMATION
,
1713 if (!NT_STATUS_IS_OK(result
)) {
1714 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1715 "on domain %s failed: (%s)\n",
1716 domain
->name
, nt_errstr(result
)));
1718 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1719 * every opcode on the DSSETUP pipe, continue with
1720 * no_dssetup mode here as well to get domain->initialized
1723 if (NT_STATUS_V(result
) == DCERPC_FAULT_OP_RNG_ERROR
) {
1727 TALLOC_FREE(mem_ctx
);
1731 if ((info
.basic
.flags
& DS_ROLE_PRIMARY_DS_RUNNING
) &&
1732 !(info
.basic
.flags
& DS_ROLE_PRIMARY_DS_MIXED_MODE
)) {
1733 domain
->native_mode
= True
;
1735 domain
->native_mode
= False
;
1739 cli
= cli_rpc_pipe_open_noauth(domain
->conn
.cli
, PI_LSARPC
, &result
);
1742 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1743 "PI_LSARPC on domain %s: (%s)\n",
1744 domain
->name
, nt_errstr(result
)));
1746 TALLOC_FREE(mem_ctx
);
1750 result
= rpccli_lsa_open_policy2(cli
, mem_ctx
, True
,
1751 SEC_RIGHTS_MAXIMUM_ALLOWED
, &pol
);
1753 if (NT_STATUS_IS_OK(result
)) {
1754 /* This particular query is exactly what Win2k clients use
1755 to determine that the DC is active directory */
1756 result
= rpccli_lsa_QueryInfoPolicy2(cli
, mem_ctx
,
1758 LSA_POLICY_INFO_DNS
,
1762 if (NT_STATUS_IS_OK(result
)) {
1763 domain
->active_directory
= True
;
1765 if (lsa_info
->dns
.name
.string
) {
1766 fstrcpy(domain
->name
, lsa_info
->dns
.name
.string
);
1769 if (lsa_info
->dns
.dns_domain
.string
) {
1770 fstrcpy(domain
->alt_name
,
1771 lsa_info
->dns
.dns_domain
.string
);
1774 /* See if we can set some domain trust flags about
1777 if (lsa_info
->dns
.dns_forest
.string
) {
1778 fstrcpy(domain
->forest_name
,
1779 lsa_info
->dns
.dns_forest
.string
);
1781 if (strequal(domain
->forest_name
, domain
->alt_name
)) {
1782 domain
->domain_flags
|= NETR_TRUST_FLAG_TREEROOT
;
1786 if (lsa_info
->dns
.sid
) {
1787 sid_copy(&domain
->sid
, lsa_info
->dns
.sid
);
1790 domain
->active_directory
= False
;
1792 result
= rpccli_lsa_open_policy(cli
, mem_ctx
, True
,
1793 SEC_RIGHTS_MAXIMUM_ALLOWED
,
1796 if (!NT_STATUS_IS_OK(result
)) {
1800 result
= rpccli_lsa_QueryInfoPolicy(cli
, mem_ctx
,
1802 LSA_POLICY_INFO_ACCOUNT_DOMAIN
,
1805 if (NT_STATUS_IS_OK(result
)) {
1807 if (lsa_info
->account_domain
.name
.string
) {
1808 fstrcpy(domain
->name
,
1809 lsa_info
->account_domain
.name
.string
);
1812 if (lsa_info
->account_domain
.sid
) {
1813 sid_copy(&domain
->sid
, lsa_info
->account_domain
.sid
);
1819 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
1820 domain
->name
, domain
->native_mode
? "" : "NOT "));
1822 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
1823 domain
->name
, domain
->active_directory
? "" : "NOT "));
1827 TALLOC_FREE(mem_ctx
);
1829 domain
->initialized
= True
;
1832 /**********************************************************************
1833 Set the domain_flags (trust attributes, domain operating modes, etc...
1834 ***********************************************************************/
1836 static void set_dc_type_and_flags( struct winbindd_domain
*domain
)
1838 /* we always have to contact our primary domain */
1840 if ( domain
->primary
) {
1841 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
1842 "primary domain\n"));
1843 set_dc_type_and_flags_connect( domain
);
1847 /* Use our DC to get the information if possible */
1849 if ( !set_dc_type_and_flags_trustinfo( domain
) ) {
1850 /* Otherwise, fallback to contacting the
1852 set_dc_type_and_flags_connect( domain
);
1860 /**********************************************************************
1861 ***********************************************************************/
1863 static bool cm_get_schannel_dcinfo(struct winbindd_domain
*domain
,
1864 struct dcinfo
**ppdc
)
1867 struct rpc_pipe_client
*netlogon_pipe
;
1869 if (lp_client_schannel() == False
) {
1873 result
= cm_connect_netlogon(domain
, &netlogon_pipe
);
1874 if (!NT_STATUS_IS_OK(result
)) {
1878 /* Return a pointer to the struct dcinfo from the
1881 *ppdc
= domain
->conn
.netlogon_pipe
->dc
;
1885 NTSTATUS
cm_connect_sam(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
1886 struct rpc_pipe_client
**cli
, POLICY_HND
*sam_handle
)
1888 struct winbindd_cm_conn
*conn
;
1889 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
1891 struct dcinfo
*p_dcinfo
;
1892 char *machine_password
= NULL
;
1893 char *machine_account
= NULL
;
1894 char *domain_name
= NULL
;
1896 result
= init_dc_connection(domain
);
1897 if (!NT_STATUS_IS_OK(result
)) {
1901 conn
= &domain
->conn
;
1903 if (conn
->samr_pipe
!= NULL
) {
1908 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
1909 * sign and sealed pipe using the machine account password by
1910 * preference. If we can't - try schannel, if that fails, try
1914 pwd_get_cleartext(&conn
->cli
->pwd
, conn_pwd
);
1915 if ((conn
->cli
->user_name
[0] == '\0') ||
1916 (conn
->cli
->domain
[0] == '\0') ||
1917 (conn_pwd
[0] == '\0'))
1919 result
= get_trust_creds(domain
, &machine_password
,
1920 &machine_account
, NULL
);
1921 if (!NT_STATUS_IS_OK(result
)) {
1922 DEBUG(10, ("cm_connect_sam: No no user available for "
1923 "domain %s, trying schannel\n", conn
->cli
->domain
));
1926 domain_name
= domain
->name
;
1928 machine_password
= SMB_STRDUP(conn_pwd
);
1929 machine_account
= SMB_STRDUP(conn
->cli
->user_name
);
1930 domain_name
= conn
->cli
->domain
;
1933 if (!machine_password
|| !machine_account
) {
1934 result
= NT_STATUS_NO_MEMORY
;
1938 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
1939 authenticated SAMR pipe with sign & seal. */
1941 cli_rpc_pipe_open_spnego_ntlmssp(conn
->cli
, PI_SAMR
,
1942 PIPE_AUTH_LEVEL_PRIVACY
,
1945 machine_password
, &result
);
1947 if (conn
->samr_pipe
== NULL
) {
1948 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
1949 "pipe for domain %s using NTLMSSP "
1950 "authenticated pipe: user %s\\%s. Error was "
1951 "%s\n", domain
->name
, domain_name
,
1952 machine_account
, nt_errstr(result
)));
1956 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
1957 "domain %s using NTLMSSP authenticated "
1958 "pipe: user %s\\%s\n", domain
->name
,
1959 domain_name
, machine_account
));
1961 result
= rpccli_samr_Connect2(conn
->samr_pipe
, mem_ctx
,
1962 conn
->samr_pipe
->desthost
,
1963 SEC_RIGHTS_MAXIMUM_ALLOWED
,
1964 &conn
->sam_connect_handle
);
1965 if (NT_STATUS_IS_OK(result
)) {
1968 DEBUG(10,("cm_connect_sam: ntlmssp-sealed rpccli_samr_Connect2 "
1969 "failed for domain %s, error was %s. Trying schannel\n",
1970 domain
->name
, nt_errstr(result
) ));
1971 TALLOC_FREE(conn
->samr_pipe
);
1975 /* Fall back to schannel if it's a W2K pre-SP1 box. */
1977 if (!cm_get_schannel_dcinfo(domain
, &p_dcinfo
)) {
1978 /* If this call fails - conn->cli can now be NULL ! */
1979 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
1980 "for domain %s, trying anon\n", domain
->name
));
1983 conn
->samr_pipe
= cli_rpc_pipe_open_schannel_with_key
1984 (conn
->cli
, PI_SAMR
, PIPE_AUTH_LEVEL_PRIVACY
,
1985 domain
->name
, p_dcinfo
, &result
);
1987 if (conn
->samr_pipe
== NULL
) {
1988 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
1989 "domain %s using schannel. Error was %s\n",
1990 domain
->name
, nt_errstr(result
) ));
1993 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
1994 "schannel.\n", domain
->name
));
1996 result
= rpccli_samr_Connect2(conn
->samr_pipe
, mem_ctx
,
1997 conn
->samr_pipe
->desthost
,
1998 SEC_RIGHTS_MAXIMUM_ALLOWED
,
1999 &conn
->sam_connect_handle
);
2000 if (NT_STATUS_IS_OK(result
)) {
2003 DEBUG(10,("cm_connect_sam: schannel-sealed rpccli_samr_Connect2 failed "
2004 "for domain %s, error was %s. Trying anonymous\n",
2005 domain
->name
, nt_errstr(result
) ));
2006 TALLOC_FREE(conn
->samr_pipe
);
2010 /* Finally fall back to anonymous. */
2011 conn
->samr_pipe
= cli_rpc_pipe_open_noauth(conn
->cli
, PI_SAMR
,
2014 if (conn
->samr_pipe
== NULL
) {
2015 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2019 result
= rpccli_samr_Connect2(conn
->samr_pipe
, mem_ctx
,
2020 conn
->samr_pipe
->desthost
,
2021 SEC_RIGHTS_MAXIMUM_ALLOWED
,
2022 &conn
->sam_connect_handle
);
2023 if (!NT_STATUS_IS_OK(result
)) {
2024 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2025 "for domain %s Error was %s\n",
2026 domain
->name
, nt_errstr(result
) ));
2031 result
= rpccli_samr_OpenDomain(conn
->samr_pipe
,
2033 &conn
->sam_connect_handle
,
2034 SEC_RIGHTS_MAXIMUM_ALLOWED
,
2036 &conn
->sam_domain_handle
);
2040 if (!NT_STATUS_IS_OK(result
)) {
2041 invalidate_cm_connection(conn
);
2045 *cli
= conn
->samr_pipe
;
2046 *sam_handle
= conn
->sam_domain_handle
;
2047 SAFE_FREE(machine_password
);
2048 SAFE_FREE(machine_account
);
2052 NTSTATUS
cm_connect_lsa(struct winbindd_domain
*domain
, TALLOC_CTX
*mem_ctx
,
2053 struct rpc_pipe_client
**cli
, POLICY_HND
*lsa_policy
)
2055 struct winbindd_cm_conn
*conn
;
2056 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
2058 struct dcinfo
*p_dcinfo
;
2060 result
= init_dc_connection(domain
);
2061 if (!NT_STATUS_IS_OK(result
))
2064 conn
= &domain
->conn
;
2066 if (conn
->lsa_pipe
!= NULL
) {
2070 pwd_get_cleartext(&conn
->cli
->pwd
, conn_pwd
);
2071 if ((conn
->cli
->user_name
[0] == '\0') ||
2072 (conn
->cli
->domain
[0] == '\0') ||
2073 (conn_pwd
[0] == '\0')) {
2074 DEBUG(10, ("cm_connect_lsa: No no user available for "
2075 "domain %s, trying schannel\n", conn
->cli
->domain
));
2079 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2080 * authenticated LSA pipe with sign & seal. */
2081 conn
->lsa_pipe
= cli_rpc_pipe_open_spnego_ntlmssp
2082 (conn
->cli
, PI_LSARPC
, PIPE_AUTH_LEVEL_PRIVACY
,
2083 conn
->cli
->domain
, conn
->cli
->user_name
, conn_pwd
, &result
);
2085 if (conn
->lsa_pipe
== NULL
) {
2086 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2087 "domain %s using NTLMSSP authenticated pipe: user "
2088 "%s\\%s. Error was %s. Trying schannel.\n",
2089 domain
->name
, conn
->cli
->domain
,
2090 conn
->cli
->user_name
, nt_errstr(result
)));
2094 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2095 "NTLMSSP authenticated pipe: user %s\\%s\n",
2096 domain
->name
, conn
->cli
->domain
, conn
->cli
->user_name
));
2098 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2099 SEC_RIGHTS_MAXIMUM_ALLOWED
,
2101 if (NT_STATUS_IS_OK(result
)) {
2105 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2108 TALLOC_FREE(conn
->lsa_pipe
);
2112 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2114 if (!cm_get_schannel_dcinfo(domain
, &p_dcinfo
)) {
2115 /* If this call fails - conn->cli can now be NULL ! */
2116 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2117 "for domain %s, trying anon\n", domain
->name
));
2120 conn
->lsa_pipe
= cli_rpc_pipe_open_schannel_with_key
2121 (conn
->cli
, PI_LSARPC
, PIPE_AUTH_LEVEL_PRIVACY
,
2122 domain
->name
, p_dcinfo
, &result
);
2124 if (conn
->lsa_pipe
== NULL
) {
2125 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2126 "domain %s using schannel. Error was %s\n",
2127 domain
->name
, nt_errstr(result
) ));
2130 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2131 "schannel.\n", domain
->name
));
2133 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2134 SEC_RIGHTS_MAXIMUM_ALLOWED
,
2136 if (NT_STATUS_IS_OK(result
)) {
2140 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2143 TALLOC_FREE(conn
->lsa_pipe
);
2147 conn
->lsa_pipe
= cli_rpc_pipe_open_noauth(conn
->cli
, PI_LSARPC
,
2149 if (conn
->lsa_pipe
== NULL
) {
2150 result
= NT_STATUS_PIPE_NOT_AVAILABLE
;
2154 result
= rpccli_lsa_open_policy(conn
->lsa_pipe
, mem_ctx
, True
,
2155 SEC_RIGHTS_MAXIMUM_ALLOWED
,
2158 if (!NT_STATUS_IS_OK(result
)) {
2159 invalidate_cm_connection(conn
);
2163 *cli
= conn
->lsa_pipe
;
2164 *lsa_policy
= conn
->lsa_policy
;
2168 /****************************************************************************
2169 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2170 session key stored in conn->netlogon_pipe->dc->sess_key.
2171 ****************************************************************************/
2173 NTSTATUS
cm_connect_netlogon(struct winbindd_domain
*domain
,
2174 struct rpc_pipe_client
**cli
)
2176 struct winbindd_cm_conn
*conn
;
2179 uint32_t neg_flags
= NETLOGON_NEG_AUTH2_ADS_FLAGS
;
2181 uint32 sec_chan_type
;
2182 const char *account_name
;
2183 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
2187 result
= init_dc_connection(domain
);
2188 if (!NT_STATUS_IS_OK(result
)) {
2192 conn
= &domain
->conn
;
2194 if (conn
->netlogon_pipe
!= NULL
) {
2195 *cli
= conn
->netlogon_pipe
;
2196 return NT_STATUS_OK
;
2199 netlogon_pipe
= cli_rpc_pipe_open_noauth(conn
->cli
, PI_NETLOGON
,
2201 if (netlogon_pipe
== NULL
) {
2205 if ((!IS_DC
) && (!domain
->primary
)) {
2206 /* Clear the schannel request bit and drop down */
2207 neg_flags
&= ~NETLOGON_NEG_SCHANNEL
;
2211 if (lp_client_schannel() != False
) {
2212 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
2215 if (!get_trust_pw_hash(domain
->name
, mach_pwd
, &account_name
,
2218 TALLOC_FREE(netlogon_pipe
);
2219 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO
;
2222 result
= rpccli_netlogon_setup_creds(
2224 domain
->dcname
, /* server name. */
2225 domain
->name
, /* domain name */
2226 global_myname(), /* client name */
2227 account_name
, /* machine account */
2228 mach_pwd
, /* machine password */
2229 sec_chan_type
, /* from get_trust_pw */
2232 if (!NT_STATUS_IS_OK(result
)) {
2233 TALLOC_FREE(netlogon_pipe
);
2237 if ((lp_client_schannel() == True
) &&
2238 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2239 DEBUG(3, ("Server did not offer schannel\n"));
2240 TALLOC_FREE(netlogon_pipe
);
2241 return NT_STATUS_ACCESS_DENIED
;
2245 if ((lp_client_schannel() == False
) ||
2246 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
2248 * NetSamLogonEx only works for schannel
2250 domain
->can_do_samlogon_ex
= False
;
2252 /* We're done - just keep the existing connection to NETLOGON
2254 conn
->netlogon_pipe
= netlogon_pipe
;
2255 *cli
= conn
->netlogon_pipe
;
2256 return NT_STATUS_OK
;
2259 /* Using the credentials from the first pipe, open a signed and sealed
2260 second netlogon pipe. The session key is stored in the schannel
2261 part of the new pipe auth struct.
2264 conn
->netlogon_pipe
=
2265 cli_rpc_pipe_open_schannel_with_key(conn
->cli
,
2267 PIPE_AUTH_LEVEL_PRIVACY
,
2272 /* We can now close the initial netlogon pipe. */
2273 TALLOC_FREE(netlogon_pipe
);
2275 if (conn
->netlogon_pipe
== NULL
) {
2276 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2277 "was %s\n", nt_errstr(result
)));
2279 /* make sure we return something besides OK */
2280 return !NT_STATUS_IS_OK(result
) ? result
: NT_STATUS_PIPE_NOT_AVAILABLE
;
2284 * Try NetSamLogonEx for AD domains
2286 domain
->can_do_samlogon_ex
= domain
->active_directory
;
2288 *cli
= conn
->netlogon_pipe
;
2289 return NT_STATUS_OK
;