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(), true)) {
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 \\ */
658 p = strip_hostname(tmp);
662 talloc_destroy(mem_ctx);
664 DEBUG(10,("rpccli_netr_GetAnyDCName returned %s\n", dcname));
666 if (!resolve_name(dcname, dc_ss, 0x20)) {
674 * Helper function to assemble trust password and account name
676 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
677 char **machine_password,
678 char **machine_account,
679 char **machine_krb5_principal)
681 const char *account_name;
682 const char *name = NULL;
684 /* If we are a DC and this is not our own domain */
689 struct winbindd_domain *our_domain = find_our_domain();
692 return NT_STATUS_INVALID_SERVER_STATE;
694 name = our_domain->name;
697 if (!get_trust_pw_clear(name, machine_password,
698 &account_name, NULL))
700 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
703 if ((machine_account != NULL) &&
704 (asprintf(machine_account, "%s$", account_name) == -1))
706 return NT_STATUS_NO_MEMORY;
709 /* For now assume our machine account only exists in our domain */
711 if (machine_krb5_principal != NULL)
713 struct winbindd_domain *our_domain = find_our_domain();
716 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
719 if (asprintf(machine_krb5_principal, "%s$@%s",
720 account_name, our_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_dc_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] and realm [%s]\n", controller, global_myname(),
837 machine_krb5_principal, domain->alt_name));
839 winbindd_set_locator_kdc_envs(domain);
841 ads_status = cli_session_setup_spnego(*cli,
842 machine_krb5_principal,
847 if (!ADS_ERR_OK(ads_status)) {
848 DEBUG(4,("failed kerberos session setup with %s\n",
849 ads_errstr(ads_status)));
852 result = ads_ntstatus(ads_status);
853 if (NT_STATUS_IS_OK(result)) {
854 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
855 cli_init_creds(*cli, machine_account, domain->name, machine_password);
856 goto session_setup_done;
860 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
861 (*cli)->use_kerberos = False;
863 DEBUG(5, ("connecting to %s from %s with username "
864 "[%s]\\[%s]\n", controller, global_myname(),
865 lp_workgroup(), machine_account));
867 ads_status = cli_session_setup_spnego(*cli,
872 if (!ADS_ERR_OK(ads_status)) {
873 DEBUG(4, ("authenticated session setup failed with %s\n",
874 ads_errstr(ads_status)));
877 result = ads_ntstatus(ads_status);
878 if (NT_STATUS_IS_OK(result)) {
879 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
880 cli_init_creds(*cli, machine_account, domain->name, machine_password);
881 goto session_setup_done;
885 /* Fall back to non-kerberos session setup with auth_user */
887 (*cli)->use_kerberos = False;
889 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
891 if ((((*cli)->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
892 (strlen(ipc_username) > 0)) {
894 /* Only try authenticated if we have a username */
896 DEBUG(5, ("connecting to %s from %s with username "
897 "[%s]\\[%s]\n", controller, global_myname(),
898 ipc_domain, ipc_username));
900 if (NT_STATUS_IS_OK(cli_session_setup(
902 ipc_password, strlen(ipc_password)+1,
903 ipc_password, strlen(ipc_password)+1,
905 /* Successful logon with given username. */
906 cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
907 goto session_setup_done;
909 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
910 ipc_domain, ipc_username ));
916 /* Fall back to anonymous connection, this might fail later */
918 if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
920 DEBUG(5, ("Connected anonymously\n"));
921 cli_init_creds(*cli, "", "", "");
922 goto session_setup_done;
925 result = cli_nt_error(*cli);
927 if (NT_STATUS_IS_OK(result))
928 result = NT_STATUS_UNSUCCESSFUL;
930 /* We can't session setup */
936 /* cache the server name for later connections */
938 saf_store( domain->name, (*cli)->desthost );
939 if (domain->alt_name && (*cli)->use_kerberos) {
940 saf_store( domain->alt_name, (*cli)->desthost );
943 winbindd_set_locator_kdc_envs(domain);
945 if (!cli_send_tconX(*cli, "IPC$", "IPC", "", 0)) {
947 result = cli_nt_error(*cli);
949 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
951 if (NT_STATUS_IS_OK(result))
952 result = NT_STATUS_UNSUCCESSFUL;
960 /* set the domain if empty; needed for schannel connections */
961 if ( !*(*cli)->domain ) {
962 fstrcpy( (*cli)->domain, domain->name );
965 result = NT_STATUS_OK;
969 SAFE_FREE(machine_account);
970 SAFE_FREE(machine_password);
971 SAFE_FREE(machine_krb5_principal);
972 SAFE_FREE(ipc_username);
973 SAFE_FREE(ipc_domain);
974 SAFE_FREE(ipc_password);
976 if (!NT_STATUS_IS_OK(result)) {
977 winbind_add_failed_connection_entry(domain, controller, result);
978 if ((*cli) != NULL) {
987 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
988 const char *dcname, struct sockaddr_storage *pss,
989 struct dc_name_ip **dcs, int *num)
991 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
992 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
996 *dcs = TALLOC_REALLOC_ARRAY(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1001 fstrcpy((*dcs)[*num].name, dcname);
1002 (*dcs)[*num].ss = *pss;
1007 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1008 struct sockaddr_storage *pss, uint16 port,
1009 struct sockaddr_storage **addrs, int *num)
1011 *addrs = TALLOC_REALLOC_ARRAY(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1013 if (*addrs == NULL) {
1018 (*addrs)[*num] = *pss;
1019 set_sockaddr_port(&(*addrs)[*num], port);
1025 /*******************************************************************
1026 convert an ip to a name
1027 *******************************************************************/
1029 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1030 const struct winbindd_domain *domain,
1031 struct sockaddr_storage *pss,
1034 struct ip_service ip_list;
1035 uint32_t nt_version = NETLOGON_VERSION_1;
1041 /* For active directory servers, try to get the ldap server name.
1042 None of these failures should be considered critical for now */
1044 if (lp_security() == SEC_ADS) {
1046 ADS_STATUS ads_status;
1047 char addr[INET6_ADDRSTRLEN];
1049 print_sockaddr(addr, sizeof(addr), pss);
1051 ads = ads_init(domain->alt_name, domain->name, addr);
1052 ads->auth.flags |= ADS_AUTH_NO_BIND;
1054 ads_status = ads_connect(ads);
1055 if (ADS_ERR_OK(ads_status)) {
1056 /* We got a cldap packet. */
1057 fstrcpy(name, ads->config.ldap_server_name);
1058 namecache_store(name, 0x20, 1, &ip_list);
1060 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1062 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1063 if (ads_closest_dc(ads)) {
1064 char *sitename = sitename_fetch(ads->config.realm);
1066 /* We're going to use this KDC for this realm/domain.
1067 If we are using sites, then force the krb5 libs
1070 create_local_private_krb5_conf_for_domain(domain->alt_name,
1075 SAFE_FREE(sitename);
1077 /* use an off site KDC */
1078 create_local_private_krb5_conf_for_domain(domain->alt_name,
1083 winbindd_set_locator_kdc_envs(domain);
1085 /* Ensure we contact this DC also. */
1086 saf_store( domain->name, name);
1087 saf_store( domain->alt_name, name);
1090 ads_destroy( &ads );
1094 ads_destroy( &ads );
1098 /* try GETDC requests next */
1100 if (send_getdc_request(mem_ctx, winbind_messaging_context(),
1101 pss, domain->name, &domain->sid,
1103 const char *dc_name = NULL;
1106 for (i=0; i<5; i++) {
1107 if (receive_getdc_response(mem_ctx, pss, domain->name,
1110 fstrcpy(name, dc_name);
1111 namecache_store(name, 0x20, 1, &ip_list);
1118 /* try node status request */
1120 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1121 namecache_store(name, 0x20, 1, &ip_list);
1127 /*******************************************************************
1128 Retreive a list of IP address for domain controllers. Fill in
1129 the dcs[] with results.
1130 *******************************************************************/
1132 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1133 struct dc_name_ip **dcs, int *num_dcs)
1136 struct sockaddr_storage ss;
1137 struct ip_service *ip_list = NULL;
1138 int iplist_size = 0;
1141 enum security_types sec = (enum security_types)lp_security();
1143 is_our_domain = strequal(domain->name, lp_workgroup());
1146 && get_dc_name_via_netlogon(domain, dcname, &ss)
1147 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs, num_dcs) )
1149 char addr[INET6_ADDRSTRLEN];
1150 print_sockaddr(addr, sizeof(addr), &ss);
1151 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1156 if (sec == SEC_ADS) {
1157 char *sitename = NULL;
1159 /* We need to make sure we know the local site before
1160 doing any DNS queries, as this will restrict the
1161 get_sorted_dc_list() call below to only fetching
1162 DNS records for the correct site. */
1164 /* Find any DC to get the site record.
1165 We deliberately don't care about the
1168 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1170 sitename = sitename_fetch(domain->alt_name);
1173 /* Do the site-specific AD dns lookup first. */
1174 get_sorted_dc_list(domain->alt_name, sitename, &ip_list, &iplist_size, True);
1176 for ( i=0; i<iplist_size; i++ ) {
1177 char addr[INET6_ADDRSTRLEN];
1178 print_sockaddr(addr, sizeof(addr),
1180 add_one_dc_unique(mem_ctx,
1189 SAFE_FREE(sitename);
1193 /* Now we add DCs from the main AD dns lookup. */
1194 get_sorted_dc_list(domain->alt_name, NULL, &ip_list, &iplist_size, True);
1196 for ( i=0; i<iplist_size; i++ ) {
1197 char addr[INET6_ADDRSTRLEN];
1198 print_sockaddr(addr, sizeof(addr),
1200 add_one_dc_unique(mem_ctx,
1209 /* try standard netbios queries if no ADS */
1211 if (iplist_size==0) {
1212 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size, False);
1215 /* FIXME!! this is where we should re-insert the GETDC requests --jerry */
1217 /* now add to the dc array. We'll wait until the last minute
1218 to look up the name of the DC. But we fill in the char* for
1219 the ip now in to make the failed connection cache work */
1221 for ( i=0; i<iplist_size; i++ ) {
1222 char addr[INET6_ADDRSTRLEN];
1223 print_sockaddr(addr, sizeof(addr),
1225 add_one_dc_unique(mem_ctx, domain->name, addr,
1226 &ip_list[i].ss, dcs, num_dcs);
1229 SAFE_FREE( ip_list );
1234 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1235 struct winbindd_domain *domain,
1236 fstring dcname, struct sockaddr_storage *pss, int *fd)
1238 struct dc_name_ip *dcs = NULL;
1241 const char **dcnames = NULL;
1242 int num_dcnames = 0;
1244 struct sockaddr_storage *addrs = NULL;
1252 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1255 for (i=0; i<num_dcs; i++) {
1257 if (!add_string_to_array(mem_ctx, dcs[i].name,
1258 &dcnames, &num_dcnames)) {
1261 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1262 &addrs, &num_addrs)) {
1266 if (!add_string_to_array(mem_ctx, dcs[i].name,
1267 &dcnames, &num_dcnames)) {
1270 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 139,
1271 &addrs, &num_addrs)) {
1276 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1279 if ((addrs == NULL) || (dcnames == NULL))
1282 /* 5 second timeout. */
1283 if (!open_any_socket_out(addrs, num_addrs, 5000, &fd_index, fd) ) {
1284 for (i=0; i<num_dcs; i++) {
1285 char ab[INET6_ADDRSTRLEN];
1286 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1287 DEBUG(10, ("find_new_dc: open_any_socket_out failed for "
1288 "domain %s address %s. Error was %s\n",
1289 domain->name, ab, strerror(errno) ));
1290 winbind_add_failed_connection_entry(domain,
1291 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1296 *pss = addrs[fd_index];
1298 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1299 /* Ok, we've got a name for the DC */
1300 fstrcpy(dcname, dcnames[fd_index]);
1304 /* Try to figure out the name */
1305 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1309 /* We can not continue without the DC's name */
1310 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1311 NT_STATUS_UNSUCCESSFUL);
1313 /* Throw away all arrays as we're doing this again. */
1317 TALLOC_FREE(dcnames);
1328 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1329 struct winbindd_cm_conn *new_conn)
1331 TALLOC_CTX *mem_ctx;
1333 char *saf_servername = saf_fetch( domain->name );
1336 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1337 SAFE_FREE(saf_servername);
1338 set_domain_offline(domain);
1339 return NT_STATUS_NO_MEMORY;
1342 /* we have to check the server affinity cache here since
1343 later we selecte a DC based on response time and not preference */
1345 /* Check the negative connection cache
1346 before talking to it. It going down may have
1347 triggered the reconnection. */
1349 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1351 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1352 saf_servername, domain->name ));
1354 /* convert an ip address to a name */
1355 if (is_ipaddress( saf_servername ) ) {
1357 struct sockaddr_storage ss;
1359 if (!interpret_string_addr(&ss, saf_servername,
1361 return NT_STATUS_UNSUCCESSFUL;
1363 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1364 fstrcpy( domain->dcname, saf_name );
1366 winbind_add_failed_connection_entry(
1367 domain, saf_servername,
1368 NT_STATUS_UNSUCCESSFUL);
1371 fstrcpy( domain->dcname, saf_servername );
1374 SAFE_FREE( saf_servername );
1377 for (retries = 0; retries < 3; retries++) {
1381 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1383 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1384 domain->dcname, domain->name ));
1387 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1388 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20)))
1390 struct sockaddr_storage *addrs = NULL;
1394 if (!add_sockaddr_to_array(mem_ctx, &domain->dcaddr, 445, &addrs, &num_addrs)) {
1395 set_domain_offline(domain);
1396 talloc_destroy(mem_ctx);
1397 return NT_STATUS_NO_MEMORY;
1399 if (!add_sockaddr_to_array(mem_ctx, &domain->dcaddr, 139, &addrs, &num_addrs)) {
1400 set_domain_offline(domain);
1401 talloc_destroy(mem_ctx);
1402 return NT_STATUS_NO_MEMORY;
1405 /* 5 second timeout. */
1406 if (!open_any_socket_out(addrs, num_addrs, 5000, &dummy, &fd)) {
1412 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1414 /* This is the one place where we will
1415 set the global winbindd offline state
1416 to true, if a "WINBINDD_OFFLINE" entry
1417 is found in the winbindd cache. */
1418 set_global_winbindd_state_offline();
1422 new_conn->cli = NULL;
1424 result = cm_prepare_connection(domain, fd, domain->dcname,
1425 &new_conn->cli, &retry);
1431 if (NT_STATUS_IS_OK(result)) {
1433 winbindd_set_locator_kdc_envs(domain);
1435 if (domain->online == False) {
1436 /* We're changing state from offline to online. */
1437 set_global_winbindd_state_online();
1439 set_domain_online(domain);
1441 /* Ensure we setup the retry handler. */
1442 set_domain_offline(domain);
1445 talloc_destroy(mem_ctx);
1449 /* Close down all open pipes on a connection. */
1451 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1453 /* We're closing down a possibly dead
1454 connection. Don't have impossibly long (10s) timeouts. */
1457 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1460 if (conn->samr_pipe != NULL) {
1461 TALLOC_FREE(conn->samr_pipe);
1462 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1464 cli_set_timeout(conn->cli, 500);
1468 if (conn->lsa_pipe != NULL) {
1469 TALLOC_FREE(conn->lsa_pipe);
1470 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1472 cli_set_timeout(conn->cli, 500);
1476 if (conn->netlogon_pipe != NULL) {
1477 TALLOC_FREE(conn->netlogon_pipe);
1478 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1480 cli_set_timeout(conn->cli, 500);
1485 cli_shutdown(conn->cli);
1491 void close_conns_after_fork(void)
1493 struct winbindd_domain *domain;
1495 for (domain = domain_list(); domain; domain = domain->next) {
1496 if (domain->conn.cli == NULL)
1499 if (domain->conn.cli->fd == -1)
1502 close(domain->conn.cli->fd);
1503 domain->conn.cli->fd = -1;
1507 static bool connection_ok(struct winbindd_domain *domain)
1509 if (domain->conn.cli == NULL) {
1510 DEBUG(8, ("connection_ok: Connection to %s for domain %s has NULL "
1511 "cli!\n", domain->dcname, domain->name));
1515 if (!domain->conn.cli->initialised) {
1516 DEBUG(3, ("connection_ok: Connection to %s for domain %s was never "
1517 "initialised!\n", domain->dcname, domain->name));
1521 if (domain->conn.cli->fd == -1) {
1522 DEBUG(3, ("connection_ok: Connection to %s for domain %s has died or was "
1523 "never started (fd == -1)\n",
1524 domain->dcname, domain->name));
1528 if (domain->online == False) {
1529 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1536 /* Initialize a new connection up to the RPC BIND.
1537 Bypass online status check so always does network calls. */
1539 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1543 /* Internal connections never use the network. */
1544 if (domain->internal) {
1545 domain->initialized = True;
1546 return NT_STATUS_OK;
1549 if (connection_ok(domain)) {
1550 if (!domain->initialized) {
1551 set_dc_type_and_flags(domain);
1553 return NT_STATUS_OK;
1556 invalidate_cm_connection(&domain->conn);
1558 result = cm_open_connection(domain, &domain->conn);
1560 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1561 set_dc_type_and_flags(domain);
1567 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1569 if (domain->initialized && !domain->online) {
1570 /* We check for online status elsewhere. */
1571 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1574 return init_dc_connection_network(domain);
1577 /******************************************************************************
1578 Set the trust flags (direction and forest location) for a domain
1579 ******************************************************************************/
1581 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1583 struct winbindd_domain *our_domain;
1584 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1585 struct netr_DomainTrustList trusts;
1587 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1588 NETR_TRUST_FLAG_OUTBOUND |
1589 NETR_TRUST_FLAG_INBOUND);
1590 struct rpc_pipe_client *cli;
1591 TALLOC_CTX *mem_ctx = NULL;
1593 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1595 /* Our primary domain doesn't need to worry about trust flags.
1596 Force it to go through the network setup */
1597 if ( domain->primary ) {
1601 our_domain = find_our_domain();
1603 if ( !connection_ok(our_domain) ) {
1604 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1608 /* This won't work unless our domain is AD */
1610 if ( !our_domain->active_directory ) {
1614 /* Use DsEnumerateDomainTrusts to get us the trust direction
1617 result = cm_connect_netlogon(our_domain, &cli);
1619 if (!NT_STATUS_IS_OK(result)) {
1620 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1621 "a connection to %s for PIPE_NETLOGON (%s)\n",
1622 domain->name, nt_errstr(result)));
1626 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1627 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1631 result = rpccli_netr_DsrEnumerateDomainTrusts(cli, mem_ctx,
1636 if (!NT_STATUS_IS_OK(result)) {
1637 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1638 "failed to query trusted domain list: %s\n",
1639 nt_errstr(result)));
1640 talloc_destroy(mem_ctx);
1644 /* Now find the domain name and get the flags */
1646 for ( i=0; i<trusts.count; i++ ) {
1647 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1648 domain->domain_flags = trusts.array[i].trust_flags;
1649 domain->domain_type = trusts.array[i].trust_type;
1650 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1652 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1653 domain->active_directory = True;
1655 /* This flag is only set if the domain is *our*
1656 primary domain and the primary domain is in
1659 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1661 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1662 "native mode.\n", domain->name,
1663 domain->native_mode ? "" : "NOT "));
1665 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1666 "running active directory.\n", domain->name,
1667 domain->active_directory ? "" : "NOT "));
1670 domain->initialized = True;
1672 if ( !winbindd_can_contact_domain( domain) )
1673 domain->internal = True;
1679 talloc_destroy( mem_ctx );
1681 return domain->initialized;
1684 /******************************************************************************
1685 We can 'sense' certain things about the DC by it's replies to certain
1688 This tells us if this particular remote server is Active Directory, and if it
1690 ******************************************************************************/
1692 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1696 TALLOC_CTX *mem_ctx = NULL;
1697 struct rpc_pipe_client *cli;
1699 union dssetup_DsRoleInfo info;
1700 union lsa_PolicyInformation *lsa_info = NULL;
1702 if (!connection_ok(domain)) {
1706 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1709 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1713 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1715 cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_DSSETUP,
1719 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1720 "PI_DSSETUP on domain %s: (%s)\n",
1721 domain->name, nt_errstr(result)));
1723 /* if this is just a non-AD domain we need to continue
1724 * identifying so that we can in the end return with
1725 * domain->initialized = True - gd */
1730 result = rpccli_dssetup_DsRoleGetPrimaryDomainInformation(cli, mem_ctx,
1731 DS_ROLE_BASIC_INFORMATION,
1736 if (!NT_STATUS_IS_OK(result)) {
1737 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1738 "on domain %s failed: (%s)\n",
1739 domain->name, nt_errstr(result)));
1741 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1742 * every opcode on the DSSETUP pipe, continue with
1743 * no_dssetup mode here as well to get domain->initialized
1746 if (NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR) {
1750 TALLOC_FREE(mem_ctx);
1754 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1755 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1756 domain->native_mode = True;
1758 domain->native_mode = False;
1762 cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_LSARPC, &result);
1765 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1766 "PI_LSARPC on domain %s: (%s)\n",
1767 domain->name, nt_errstr(result)));
1769 TALLOC_FREE(mem_ctx);
1773 result = rpccli_lsa_open_policy2(cli, mem_ctx, True,
1774 SEC_RIGHTS_MAXIMUM_ALLOWED, &pol);
1776 if (NT_STATUS_IS_OK(result)) {
1777 /* This particular query is exactly what Win2k clients use
1778 to determine that the DC is active directory */
1779 result = rpccli_lsa_QueryInfoPolicy2(cli, mem_ctx,
1781 LSA_POLICY_INFO_DNS,
1785 if (NT_STATUS_IS_OK(result)) {
1786 domain->active_directory = True;
1788 if (lsa_info->dns.name.string) {
1789 fstrcpy(domain->name, lsa_info->dns.name.string);
1792 if (lsa_info->dns.dns_domain.string) {
1793 fstrcpy(domain->alt_name,
1794 lsa_info->dns.dns_domain.string);
1797 /* See if we can set some domain trust flags about
1800 if (lsa_info->dns.dns_forest.string) {
1801 fstrcpy(domain->forest_name,
1802 lsa_info->dns.dns_forest.string);
1804 if (strequal(domain->forest_name, domain->alt_name)) {
1805 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
1809 if (lsa_info->dns.sid) {
1810 sid_copy(&domain->sid, lsa_info->dns.sid);
1813 domain->active_directory = False;
1815 result = rpccli_lsa_open_policy(cli, mem_ctx, True,
1816 SEC_RIGHTS_MAXIMUM_ALLOWED,
1819 if (!NT_STATUS_IS_OK(result)) {
1823 result = rpccli_lsa_QueryInfoPolicy(cli, mem_ctx,
1825 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
1828 if (NT_STATUS_IS_OK(result)) {
1830 if (lsa_info->account_domain.name.string) {
1831 fstrcpy(domain->name,
1832 lsa_info->account_domain.name.string);
1835 if (lsa_info->account_domain.sid) {
1836 sid_copy(&domain->sid, lsa_info->account_domain.sid);
1842 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
1843 domain->name, domain->native_mode ? "" : "NOT "));
1845 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
1846 domain->name, domain->active_directory ? "" : "NOT "));
1850 TALLOC_FREE(mem_ctx);
1852 domain->initialized = True;
1855 /**********************************************************************
1856 Set the domain_flags (trust attributes, domain operating modes, etc...
1857 ***********************************************************************/
1859 static void set_dc_type_and_flags( struct winbindd_domain *domain )
1861 /* we always have to contact our primary domain */
1863 if ( domain->primary ) {
1864 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
1865 "primary domain\n"));
1866 set_dc_type_and_flags_connect( domain );
1870 /* Use our DC to get the information if possible */
1872 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
1873 /* Otherwise, fallback to contacting the
1875 set_dc_type_and_flags_connect( domain );
1883 /**********************************************************************
1884 ***********************************************************************/
1886 static bool cm_get_schannel_dcinfo(struct winbindd_domain *domain,
1887 struct dcinfo **ppdc)
1890 struct rpc_pipe_client *netlogon_pipe;
1892 if (lp_client_schannel() == False) {
1896 result = cm_connect_netlogon(domain, &netlogon_pipe);
1897 if (!NT_STATUS_IS_OK(result)) {
1901 /* Return a pointer to the struct dcinfo from the
1904 *ppdc = domain->conn.netlogon_pipe->dc;
1908 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
1909 struct rpc_pipe_client **cli, POLICY_HND *sam_handle)
1911 struct winbindd_cm_conn *conn;
1912 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1914 struct dcinfo *p_dcinfo;
1915 char *machine_password = NULL;
1916 char *machine_account = NULL;
1917 char *domain_name = NULL;
1919 result = init_dc_connection(domain);
1920 if (!NT_STATUS_IS_OK(result)) {
1924 conn = &domain->conn;
1926 if (conn->samr_pipe != NULL) {
1931 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
1932 * sign and sealed pipe using the machine account password by
1933 * preference. If we can't - try schannel, if that fails, try
1937 pwd_get_cleartext(&conn->cli->pwd, conn_pwd);
1938 if ((conn->cli->user_name[0] == '\0') ||
1939 (conn->cli->domain[0] == '\0') ||
1940 (conn_pwd[0] == '\0'))
1942 result = get_trust_creds(domain, &machine_password,
1943 &machine_account, NULL);
1944 if (!NT_STATUS_IS_OK(result)) {
1945 DEBUG(10, ("cm_connect_sam: No no user available for "
1946 "domain %s, trying schannel\n", conn->cli->domain));
1949 domain_name = domain->name;
1951 machine_password = SMB_STRDUP(conn_pwd);
1952 machine_account = SMB_STRDUP(conn->cli->user_name);
1953 domain_name = conn->cli->domain;
1956 if (!machine_password || !machine_account) {
1957 result = NT_STATUS_NO_MEMORY;
1961 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
1962 authenticated SAMR pipe with sign & seal. */
1964 cli_rpc_pipe_open_spnego_ntlmssp(conn->cli, PI_SAMR,
1965 PIPE_AUTH_LEVEL_PRIVACY,
1968 machine_password, &result);
1970 if (conn->samr_pipe == NULL) {
1971 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
1972 "pipe for domain %s using NTLMSSP "
1973 "authenticated pipe: user %s\\%s. Error was "
1974 "%s\n", domain->name, domain_name,
1975 machine_account, nt_errstr(result)));
1979 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
1980 "domain %s using NTLMSSP authenticated "
1981 "pipe: user %s\\%s\n", domain->name,
1982 domain_name, machine_account));
1984 result = rpccli_samr_Connect2(conn->samr_pipe, mem_ctx,
1985 conn->samr_pipe->desthost,
1986 SEC_RIGHTS_MAXIMUM_ALLOWED,
1987 &conn->sam_connect_handle);
1988 if (NT_STATUS_IS_OK(result)) {
1991 DEBUG(10,("cm_connect_sam: ntlmssp-sealed rpccli_samr_Connect2 "
1992 "failed for domain %s, error was %s. Trying schannel\n",
1993 domain->name, nt_errstr(result) ));
1994 TALLOC_FREE(conn->samr_pipe);
1998 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2000 if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
2001 /* If this call fails - conn->cli can now be NULL ! */
2002 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2003 "for domain %s, trying anon\n", domain->name));
2006 conn->samr_pipe = cli_rpc_pipe_open_schannel_with_key
2007 (conn->cli, PI_SAMR, PIPE_AUTH_LEVEL_PRIVACY,
2008 domain->name, p_dcinfo, &result);
2010 if (conn->samr_pipe == NULL) {
2011 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2012 "domain %s using schannel. Error was %s\n",
2013 domain->name, nt_errstr(result) ));
2016 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2017 "schannel.\n", domain->name ));
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)) {
2026 DEBUG(10,("cm_connect_sam: schannel-sealed rpccli_samr_Connect2 failed "
2027 "for domain %s, error was %s. Trying anonymous\n",
2028 domain->name, nt_errstr(result) ));
2029 TALLOC_FREE(conn->samr_pipe);
2033 /* Finally fall back to anonymous. */
2034 conn->samr_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_SAMR,
2037 if (conn->samr_pipe == NULL) {
2038 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2042 result = rpccli_samr_Connect2(conn->samr_pipe, mem_ctx,
2043 conn->samr_pipe->desthost,
2044 SEC_RIGHTS_MAXIMUM_ALLOWED,
2045 &conn->sam_connect_handle);
2046 if (!NT_STATUS_IS_OK(result)) {
2047 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2048 "for domain %s Error was %s\n",
2049 domain->name, nt_errstr(result) ));
2054 result = rpccli_samr_OpenDomain(conn->samr_pipe,
2056 &conn->sam_connect_handle,
2057 SEC_RIGHTS_MAXIMUM_ALLOWED,
2059 &conn->sam_domain_handle);
2063 if (!NT_STATUS_IS_OK(result)) {
2064 invalidate_cm_connection(conn);
2068 *cli = conn->samr_pipe;
2069 *sam_handle = conn->sam_domain_handle;
2070 SAFE_FREE(machine_password);
2071 SAFE_FREE(machine_account);
2075 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2076 struct rpc_pipe_client **cli, POLICY_HND *lsa_policy)
2078 struct winbindd_cm_conn *conn;
2079 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2081 struct dcinfo *p_dcinfo;
2083 result = init_dc_connection(domain);
2084 if (!NT_STATUS_IS_OK(result))
2087 conn = &domain->conn;
2089 if (conn->lsa_pipe != NULL) {
2093 pwd_get_cleartext(&conn->cli->pwd, conn_pwd);
2094 if ((conn->cli->user_name[0] == '\0') ||
2095 (conn->cli->domain[0] == '\0') ||
2096 (conn_pwd[0] == '\0')) {
2097 DEBUG(10, ("cm_connect_lsa: No no user available for "
2098 "domain %s, trying schannel\n", conn->cli->domain));
2102 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2103 * authenticated LSA pipe with sign & seal. */
2104 conn->lsa_pipe = cli_rpc_pipe_open_spnego_ntlmssp
2105 (conn->cli, PI_LSARPC, PIPE_AUTH_LEVEL_PRIVACY,
2106 conn->cli->domain, conn->cli->user_name, conn_pwd, &result);
2108 if (conn->lsa_pipe == NULL) {
2109 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2110 "domain %s using NTLMSSP authenticated pipe: user "
2111 "%s\\%s. Error was %s. Trying schannel.\n",
2112 domain->name, conn->cli->domain,
2113 conn->cli->user_name, nt_errstr(result)));
2117 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2118 "NTLMSSP authenticated pipe: user %s\\%s\n",
2119 domain->name, conn->cli->domain, conn->cli->user_name ));
2121 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2122 SEC_RIGHTS_MAXIMUM_ALLOWED,
2124 if (NT_STATUS_IS_OK(result)) {
2128 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2131 TALLOC_FREE(conn->lsa_pipe);
2135 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2137 if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
2138 /* If this call fails - conn->cli can now be NULL ! */
2139 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2140 "for domain %s, trying anon\n", domain->name));
2143 conn->lsa_pipe = cli_rpc_pipe_open_schannel_with_key
2144 (conn->cli, PI_LSARPC, PIPE_AUTH_LEVEL_PRIVACY,
2145 domain->name, p_dcinfo, &result);
2147 if (conn->lsa_pipe == NULL) {
2148 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2149 "domain %s using schannel. Error was %s\n",
2150 domain->name, nt_errstr(result) ));
2153 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2154 "schannel.\n", domain->name ));
2156 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2157 SEC_RIGHTS_MAXIMUM_ALLOWED,
2159 if (NT_STATUS_IS_OK(result)) {
2163 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2166 TALLOC_FREE(conn->lsa_pipe);
2170 conn->lsa_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_LSARPC,
2172 if (conn->lsa_pipe == NULL) {
2173 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2177 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2178 SEC_RIGHTS_MAXIMUM_ALLOWED,
2181 if (!NT_STATUS_IS_OK(result)) {
2182 invalidate_cm_connection(conn);
2186 *cli = conn->lsa_pipe;
2187 *lsa_policy = conn->lsa_policy;
2191 /****************************************************************************
2192 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2193 session key stored in conn->netlogon_pipe->dc->sess_key.
2194 ****************************************************************************/
2196 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2197 struct rpc_pipe_client **cli)
2199 struct winbindd_cm_conn *conn;
2202 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2204 uint32 sec_chan_type;
2205 const char *account_name;
2206 struct rpc_pipe_client *netlogon_pipe = NULL;
2210 result = init_dc_connection(domain);
2211 if (!NT_STATUS_IS_OK(result)) {
2215 conn = &domain->conn;
2217 if (conn->netlogon_pipe != NULL) {
2218 *cli = conn->netlogon_pipe;
2219 return NT_STATUS_OK;
2222 netlogon_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_NETLOGON,
2224 if (netlogon_pipe == NULL) {
2228 if ((!IS_DC) && (!domain->primary)) {
2229 /* Clear the schannel request bit and drop down */
2230 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2234 if (lp_client_schannel() != False) {
2235 neg_flags |= NETLOGON_NEG_SCHANNEL;
2238 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2241 TALLOC_FREE(netlogon_pipe);
2242 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2245 result = rpccli_netlogon_setup_creds(
2247 domain->dcname, /* server name. */
2248 domain->name, /* domain name */
2249 global_myname(), /* client name */
2250 account_name, /* machine account */
2251 mach_pwd, /* machine password */
2252 sec_chan_type, /* from get_trust_pw */
2255 if (!NT_STATUS_IS_OK(result)) {
2256 TALLOC_FREE(netlogon_pipe);
2260 if ((lp_client_schannel() == True) &&
2261 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2262 DEBUG(3, ("Server did not offer schannel\n"));
2263 TALLOC_FREE(netlogon_pipe);
2264 return NT_STATUS_ACCESS_DENIED;
2268 if ((lp_client_schannel() == False) ||
2269 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2271 * NetSamLogonEx only works for schannel
2273 domain->can_do_samlogon_ex = False;
2275 /* We're done - just keep the existing connection to NETLOGON
2277 conn->netlogon_pipe = netlogon_pipe;
2278 *cli = conn->netlogon_pipe;
2279 return NT_STATUS_OK;
2282 /* Using the credentials from the first pipe, open a signed and sealed
2283 second netlogon pipe. The session key is stored in the schannel
2284 part of the new pipe auth struct.
2287 conn->netlogon_pipe =
2288 cli_rpc_pipe_open_schannel_with_key(conn->cli,
2290 PIPE_AUTH_LEVEL_PRIVACY,
2295 /* We can now close the initial netlogon pipe. */
2296 TALLOC_FREE(netlogon_pipe);
2298 if (conn->netlogon_pipe == NULL) {
2299 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2300 "was %s\n", nt_errstr(result)));
2302 /* make sure we return something besides OK */
2303 return !NT_STATUS_IS_OK(result) ? result : NT_STATUS_PIPE_NOT_AVAILABLE;
2307 * Try NetSamLogonEx for AD domains
2309 domain->can_do_samlogon_ex = domain->active_directory;
2311 *cli = conn->netlogon_pipe;
2312 return NT_STATUS_OK;