2 Unix SMB/CIFS implementation.
4 Winbind daemon connection manager
6 Copyright (C) Tim Potter 2001
7 Copyright (C) Andrew Bartlett 2002
8 Copyright (C) Gerald (Jerry) Carter 2003-2005.
9 Copyright (C) Volker Lendecke 2004-2005
10 Copyright (C) Jeremy Allison 2006
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 We need to manage connections to domain controllers without having to
28 mess up the main winbindd code with other issues. The aim of the
29 connection manager is to:
31 - make connections to domain controllers and cache them
32 - re-establish connections when networks or servers go down
33 - centralise the policy on connection timeouts, domain controller
35 - manage re-entrancy for when winbindd becomes able to handle
36 multiple outstanding rpc requests
38 Why not have connection management as part of the rpc layer like tng?
39 Good question. This code may morph into libsmb/rpc_cache.c or something
40 like that but at the moment it's simply staying as part of winbind. I
41 think the TNG architecture of forcing every user of the rpc layer to use
42 the connection caching system is a bad idea. It should be an optional
43 method of using the routines.
45 The TNG design is quite good but I disagree with some aspects of the
53 - I'm pretty annoyed by all the make_nmb_name() stuff. It should be
54 moved down into another function.
56 - Take care when destroying cli_structs as they can be shared between
63 #include "../libcli/auth/libcli_auth.h"
64 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
65 #include "rpc_client/cli_pipe.h"
66 #include "rpc_client/cli_netlogon.h"
67 #include "../librpc/gen_ndr/ndr_samr_c.h"
68 #include "../librpc/gen_ndr/ndr_lsa_c.h"
69 #include "rpc_client/cli_lsarpc.h"
70 #include "../librpc/gen_ndr/ndr_dssetup_c.h"
71 #include "libads/sitename_cache.h"
72 #include "libsmb/libsmb.h"
73 #include "libsmb/clidgram.h"
76 #include "../libcli/security/security.h"
81 #define DBGC_CLASS DBGC_WINBIND
85 struct sockaddr_storage ss;
88 extern struct winbindd_methods reconnect_methods;
89 extern bool override_logfile;
91 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
92 static void set_dc_type_and_flags( struct winbindd_domain *domain );
93 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
94 struct dc_name_ip **dcs, int *num_dcs);
96 /****************************************************************
97 Child failed to find DC's. Reschedule check.
98 ****************************************************************/
100 static void msg_failed_to_go_online(struct messaging_context *msg,
103 struct server_id server_id,
106 struct winbindd_domain *domain;
107 const char *domainname = (const char *)data->data;
109 if (data->data == NULL || data->length == 0) {
113 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
115 for (domain = domain_list(); domain; domain = domain->next) {
116 if (domain->internal) {
120 if (strequal(domain->name, domainname)) {
121 if (domain->online) {
122 /* We're already online, ignore. */
123 DEBUG(5,("msg_fail_to_go_online: domain %s "
124 "already online.\n", domainname));
128 /* Reschedule the online check. */
129 set_domain_offline(domain);
135 /****************************************************************
136 Actually cause a reconnect from a message.
137 ****************************************************************/
139 static void msg_try_to_go_online(struct messaging_context *msg,
142 struct server_id server_id,
145 struct winbindd_domain *domain;
146 const char *domainname = (const char *)data->data;
148 if (data->data == NULL || data->length == 0) {
152 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
154 for (domain = domain_list(); domain; domain = domain->next) {
155 if (domain->internal) {
159 if (strequal(domain->name, domainname)) {
161 if (domain->online) {
162 /* We're already online, ignore. */
163 DEBUG(5,("msg_try_to_go_online: domain %s "
164 "already online.\n", domainname));
168 /* This call takes care of setting the online
169 flag to true if we connected, or re-adding
170 the offline handler if false. Bypasses online
171 check so always does network calls. */
173 init_dc_connection_network(domain);
179 /****************************************************************
180 Fork a child to try and contact a DC. Do this as contacting a
181 DC requires blocking lookups and we don't want to block our
183 ****************************************************************/
185 static bool fork_child_dc_connect(struct winbindd_domain *domain)
187 struct dc_name_ip *dcs = NULL;
189 TALLOC_CTX *mem_ctx = NULL;
190 pid_t parent_pid = sys_getpid();
194 if (domain->dc_probe_pid != (pid_t)-1) {
196 * We might already have a DC probe
197 * child working, check.
199 if (process_exists_by_pid(domain->dc_probe_pid)) {
200 DEBUG(10,("fork_child_dc_connect: pid %u already "
201 "checking for DC's.\n",
202 (unsigned int)domain->dc_probe_pid));
205 domain->dc_probe_pid = (pid_t)-1;
208 domain->dc_probe_pid = sys_fork();
210 if (domain->dc_probe_pid == (pid_t)-1) {
211 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
215 if (domain->dc_probe_pid != (pid_t)0) {
217 messaging_register(winbind_messaging_context(), NULL,
218 MSG_WINBIND_TRY_TO_GO_ONLINE,
219 msg_try_to_go_online);
220 messaging_register(winbind_messaging_context(), NULL,
221 MSG_WINBIND_FAILED_TO_GO_ONLINE,
222 msg_failed_to_go_online);
228 /* Leave messages blocked - we will never process one. */
230 if (!override_logfile) {
231 if (asprintf(&lfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
232 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
237 status = winbindd_reinit_after_fork(NULL, lfile);
238 if (!NT_STATUS_IS_OK(status)) {
239 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
241 messaging_send_buf(winbind_messaging_context(),
242 pid_to_procid(parent_pid),
243 MSG_WINBIND_FAILED_TO_GO_ONLINE,
244 (uint8 *)domain->name,
245 strlen(domain->name)+1);
250 mem_ctx = talloc_init("fork_child_dc_connect");
252 DEBUG(0,("talloc_init failed.\n"));
253 messaging_send_buf(winbind_messaging_context(),
254 pid_to_procid(parent_pid),
255 MSG_WINBIND_FAILED_TO_GO_ONLINE,
256 (uint8 *)domain->name,
257 strlen(domain->name)+1);
261 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
262 /* Still offline ? Can't find DC's. */
263 messaging_send_buf(winbind_messaging_context(),
264 pid_to_procid(parent_pid),
265 MSG_WINBIND_FAILED_TO_GO_ONLINE,
266 (uint8 *)domain->name,
267 strlen(domain->name)+1);
271 /* We got a DC. Send a message to our parent to get it to
272 try and do the same. */
274 messaging_send_buf(winbind_messaging_context(),
275 pid_to_procid(parent_pid),
276 MSG_WINBIND_TRY_TO_GO_ONLINE,
277 (uint8 *)domain->name,
278 strlen(domain->name)+1);
282 /****************************************************************
283 Handler triggered if we're offline to try and detect a DC.
284 ****************************************************************/
286 static void check_domain_online_handler(struct event_context *ctx,
287 struct timed_event *te,
291 struct winbindd_domain *domain =
292 (struct winbindd_domain *)private_data;
294 DEBUG(10,("check_domain_online_handler: called for domain "
295 "%s (online = %s)\n", domain->name,
296 domain->online ? "True" : "False" ));
298 TALLOC_FREE(domain->check_online_event);
300 /* Are we still in "startup" mode ? */
302 if (domain->startup && (time_mono(NULL) > domain->startup_time + 30)) {
303 /* No longer in "startup" mode. */
304 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
306 domain->startup = False;
309 /* We've been told to stay offline, so stay
312 if (get_global_winbindd_state_offline()) {
313 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
318 /* Fork a child to test if it can contact a DC.
319 If it can then send ourselves a message to
320 cause a reconnect. */
322 fork_child_dc_connect(domain);
325 /****************************************************************
326 If we're still offline setup the timeout check.
327 ****************************************************************/
329 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
331 int wbr = lp_winbind_reconnect_delay();
333 if (domain->startup) {
334 domain->check_online_timeout = 10;
335 } else if (domain->check_online_timeout < wbr) {
336 domain->check_online_timeout = wbr;
340 /****************************************************************
341 Set domain offline and also add handler to put us back online
343 ****************************************************************/
345 void set_domain_offline(struct winbindd_domain *domain)
347 DEBUG(10,("set_domain_offline: called for domain %s\n",
350 TALLOC_FREE(domain->check_online_event);
352 if (domain->internal) {
353 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
358 domain->online = False;
360 /* Offline domains are always initialized. They're
361 re-initialized when they go back online. */
363 domain->initialized = True;
365 /* We only add the timeout handler that checks and
366 allows us to go back online when we've not
367 been told to remain offline. */
369 if (get_global_winbindd_state_offline()) {
370 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
375 /* If we're in startup mode, check again in 10 seconds, not in
376 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
378 calc_new_online_timeout_check(domain);
380 domain->check_online_event = event_add_timed(winbind_event_context(),
382 timeval_current_ofs(domain->check_online_timeout,0),
383 check_domain_online_handler,
386 /* The above *has* to succeed for winbindd to work. */
387 if (!domain->check_online_event) {
388 smb_panic("set_domain_offline: failed to add online handler");
391 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
394 /* Send an offline message to the idmap child when our
395 primary domain goes offline */
397 if ( domain->primary ) {
398 struct winbindd_child *idmap = idmap_child();
400 if ( idmap->pid != 0 ) {
401 messaging_send_buf(winbind_messaging_context(),
402 pid_to_procid(idmap->pid),
404 (uint8 *)domain->name,
405 strlen(domain->name)+1);
412 /****************************************************************
413 Set domain online - if allowed.
414 ****************************************************************/
416 static void set_domain_online(struct winbindd_domain *domain)
418 DEBUG(10,("set_domain_online: called for domain %s\n",
421 if (domain->internal) {
422 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
427 if (get_global_winbindd_state_offline()) {
428 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
433 winbindd_set_locator_kdc_envs(domain);
435 /* If we are waiting to get a krb5 ticket, trigger immediately. */
436 ccache_regain_all_now();
438 /* Ok, we're out of any startup mode now... */
439 domain->startup = False;
441 if (domain->online == False) {
442 /* We were offline - now we're online. We default to
443 using the MS-RPC backend if we started offline,
444 and if we're going online for the first time we
445 should really re-initialize the backends and the
446 checks to see if we're talking to an AD or NT domain.
449 domain->initialized = False;
451 /* 'reconnect_methods' is the MS-RPC backend. */
452 if (domain->backend == &reconnect_methods) {
453 domain->backend = NULL;
457 /* Ensure we have no online timeout checks. */
458 domain->check_online_timeout = 0;
459 TALLOC_FREE(domain->check_online_event);
461 /* Ensure we ignore any pending child messages. */
462 messaging_deregister(winbind_messaging_context(),
463 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
464 messaging_deregister(winbind_messaging_context(),
465 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
467 domain->online = True;
469 /* Send an online message to the idmap child when our
470 primary domain comes online */
472 if ( domain->primary ) {
473 struct winbindd_child *idmap = idmap_child();
475 if ( idmap->pid != 0 ) {
476 messaging_send_buf(winbind_messaging_context(),
477 pid_to_procid(idmap->pid),
479 (uint8 *)domain->name,
480 strlen(domain->name)+1);
487 /****************************************************************
488 Requested to set a domain online.
489 ****************************************************************/
491 void set_domain_online_request(struct winbindd_domain *domain)
495 DEBUG(10,("set_domain_online_request: called for domain %s\n",
498 if (get_global_winbindd_state_offline()) {
499 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
504 if (domain->internal) {
505 DEBUG(10, ("set_domain_online_request: Internal domains are "
510 /* We've been told it's safe to go online and
511 try and connect to a DC. But I don't believe it
512 because network manager seems to lie.
513 Wait at least 5 seconds. Heuristics suck... */
518 /* Go into "startup" mode again. */
519 domain->startup_time = time_mono(NULL);
520 domain->startup = True;
524 if (!domain->check_online_event) {
525 /* If we've come from being globally offline we
526 don't have a check online event handler set.
527 We need to add one now we're trying to go
530 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
534 TALLOC_FREE(domain->check_online_event);
536 domain->check_online_event = event_add_timed(winbind_event_context(),
539 check_domain_online_handler,
542 /* The above *has* to succeed for winbindd to work. */
543 if (!domain->check_online_event) {
544 smb_panic("set_domain_online_request: failed to add online handler");
548 /****************************************************************
549 Add -ve connection cache entries for domain and realm.
550 ****************************************************************/
552 static void winbind_add_failed_connection_entry(
553 const struct winbindd_domain *domain,
557 add_failed_connection_entry(domain->name, server, result);
558 /* If this was the saf name for the last thing we talked to,
560 saf_delete(domain->name);
561 if (*domain->alt_name) {
562 add_failed_connection_entry(domain->alt_name, server, result);
563 saf_delete(domain->alt_name);
565 winbindd_unset_locator_kdc_env(domain);
568 /* Choose between anonymous or authenticated connections. We need to use
569 an authenticated connection if DCs have the RestrictAnonymous registry
570 entry set > 0, or the "Additional restrictions for anonymous
571 connections" set in the win2k Local Security Policy.
573 Caller to free() result in domain, username, password
576 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
578 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
579 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
580 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
582 if (*username && **username) {
584 if (!*domain || !**domain)
585 *domain = smb_xstrdup(lp_workgroup());
587 if (!*password || !**password)
588 *password = smb_xstrdup("");
590 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
591 *domain, *username));
594 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
595 *username = smb_xstrdup("");
596 *domain = smb_xstrdup("");
597 *password = smb_xstrdup("");
601 static bool get_dc_name_via_netlogon(struct winbindd_domain *domain,
603 struct sockaddr_storage *dc_ss)
605 struct winbindd_domain *our_domain = NULL;
606 struct rpc_pipe_client *netlogon_pipe = NULL;
610 unsigned int orig_timeout;
611 const char *tmp = NULL;
613 struct dcerpc_binding_handle *b;
615 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
622 if (domain->primary) {
626 our_domain = find_our_domain();
628 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
632 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
633 if (!NT_STATUS_IS_OK(result)) {
634 talloc_destroy(mem_ctx);
638 b = netlogon_pipe->binding_handle;
640 /* This call can take a long time - allow the server to time out.
641 35 seconds should do it. */
643 orig_timeout = rpccli_set_timeout(netlogon_pipe, 35000);
645 if (our_domain->active_directory) {
646 struct netr_DsRGetDCNameInfo *domain_info = NULL;
648 result = dcerpc_netr_DsRGetDCName(b,
657 if (NT_STATUS_IS_OK(result) && W_ERROR_IS_OK(werr)) {
659 mem_ctx, domain_info->dc_unc);
661 DEBUG(0, ("talloc_strdup failed\n"));
662 talloc_destroy(mem_ctx);
665 if (strlen(domain->alt_name) == 0) {
666 fstrcpy(domain->alt_name,
667 domain_info->domain_name);
669 if (strlen(domain->forest_name) == 0) {
670 fstrcpy(domain->forest_name,
671 domain_info->forest_name);
675 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
682 /* And restore our original timeout. */
683 rpccli_set_timeout(netlogon_pipe, orig_timeout);
685 if (!NT_STATUS_IS_OK(result)) {
686 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
688 talloc_destroy(mem_ctx);
692 if (!W_ERROR_IS_OK(werr)) {
693 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
695 talloc_destroy(mem_ctx);
699 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
700 p = strip_hostname(tmp);
704 talloc_destroy(mem_ctx);
706 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
708 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
716 * Helper function to assemble trust password and account name
718 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
719 char **machine_password,
720 char **machine_account,
721 char **machine_krb5_principal)
723 const char *account_name;
724 const char *name = NULL;
726 /* If we are a DC and this is not our own domain */
731 struct winbindd_domain *our_domain = find_our_domain();
734 return NT_STATUS_INVALID_SERVER_STATE;
736 name = our_domain->name;
739 if (!get_trust_pw_clear(name, machine_password,
740 &account_name, NULL))
742 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
745 if ((machine_account != NULL) &&
746 (asprintf(machine_account, "%s$", account_name) == -1))
748 return NT_STATUS_NO_MEMORY;
751 /* For now assume our machine account only exists in our domain */
753 if (machine_krb5_principal != NULL)
755 struct winbindd_domain *our_domain = find_our_domain();
758 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
761 if (asprintf(machine_krb5_principal, "%s$@%s",
762 account_name, our_domain->alt_name) == -1)
764 return NT_STATUS_NO_MEMORY;
767 strupper_m(*machine_krb5_principal);
773 /************************************************************************
774 Given a fd with a just-connected TCP connection to a DC, open a connection
776 ************************************************************************/
778 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
780 const char *controller,
781 struct cli_state **cli,
784 char *machine_password = NULL;
785 char *machine_krb5_principal = NULL;
786 char *machine_account = NULL;
787 char *ipc_username = NULL;
788 char *ipc_domain = NULL;
789 char *ipc_password = NULL;
791 struct named_mutex *mutex;
793 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
795 struct sockaddr peeraddr;
796 socklen_t peeraddr_len;
798 struct sockaddr_in *peeraddr_in =
799 (struct sockaddr_in *)(void *)&peeraddr;
801 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
802 controller, domain->name ));
806 mutex = grab_named_mutex(talloc_tos(), controller,
807 WINBIND_SERVER_MUTEX_WAIT_TIME);
809 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
811 result = NT_STATUS_POSSIBLE_DEADLOCK;
815 if ((*cli = cli_initialise()) == NULL) {
816 DEBUG(1, ("Could not cli_initialize\n"));
817 result = NT_STATUS_NO_MEMORY;
821 (*cli)->timeout = 10000; /* 10 seconds */
823 (*cli)->desthost = talloc_strdup((*cli), controller);
824 if ((*cli)->desthost == NULL) {
825 result = NT_STATUS_NO_MEMORY;
829 (*cli)->use_kerberos = True;
831 peeraddr_len = sizeof(peeraddr);
833 if ((getpeername((*cli)->fd, &peeraddr, &peeraddr_len) != 0)) {
834 DEBUG(0,("cm_prepare_connection: getpeername failed with: %s\n",
836 result = NT_STATUS_UNSUCCESSFUL;
840 if ((peeraddr_len != sizeof(struct sockaddr_in))
842 && (peeraddr_len != sizeof(struct sockaddr_in6))
845 DEBUG(0,("cm_prepare_connection: got unexpected peeraddr len %d\n",
847 result = NT_STATUS_UNSUCCESSFUL;
851 if ((peeraddr_in->sin_family != PF_INET)
853 && (peeraddr_in->sin_family != PF_INET6)
856 DEBUG(0,("cm_prepare_connection: got unexpected family %d\n",
857 peeraddr_in->sin_family));
858 result = NT_STATUS_UNSUCCESSFUL;
862 result = cli_negprot(*cli);
864 if (!NT_STATUS_IS_OK(result)) {
865 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
869 if (!is_dc_trusted_domain_situation(domain->name) &&
870 (*cli)->protocol >= PROTOCOL_NT1 &&
871 (*cli)->capabilities & CAP_EXTENDED_SECURITY)
873 ADS_STATUS ads_status;
875 result = get_trust_creds(domain, &machine_password,
877 &machine_krb5_principal);
878 if (!NT_STATUS_IS_OK(result)) {
882 if (lp_security() == SEC_ADS) {
884 /* Try a krb5 session */
886 (*cli)->use_kerberos = True;
887 DEBUG(5, ("connecting to %s from %s with kerberos principal "
888 "[%s] and realm [%s]\n", controller, global_myname(),
889 machine_krb5_principal, domain->alt_name));
891 winbindd_set_locator_kdc_envs(domain);
893 ads_status = cli_session_setup_spnego(*cli,
894 machine_krb5_principal,
899 if (!ADS_ERR_OK(ads_status)) {
900 DEBUG(4,("failed kerberos session setup with %s\n",
901 ads_errstr(ads_status)));
904 result = ads_ntstatus(ads_status);
905 if (NT_STATUS_IS_OK(result)) {
906 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
907 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
908 if (!NT_STATUS_IS_OK(result)) {
911 goto session_setup_done;
915 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
916 (*cli)->use_kerberos = False;
918 DEBUG(5, ("connecting to %s from %s with username "
919 "[%s]\\[%s]\n", controller, global_myname(),
920 lp_workgroup(), machine_account));
922 ads_status = cli_session_setup_spnego(*cli,
927 if (!ADS_ERR_OK(ads_status)) {
928 DEBUG(4, ("authenticated session setup failed with %s\n",
929 ads_errstr(ads_status)));
932 result = ads_ntstatus(ads_status);
933 if (NT_STATUS_IS_OK(result)) {
934 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
935 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
936 if (!NT_STATUS_IS_OK(result)) {
939 goto session_setup_done;
943 /* Fall back to non-kerberos session setup with auth_user */
945 (*cli)->use_kerberos = False;
947 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
949 if ((((*cli)->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
950 (strlen(ipc_username) > 0)) {
952 /* Only try authenticated if we have a username */
954 DEBUG(5, ("connecting to %s from %s with username "
955 "[%s]\\[%s]\n", controller, global_myname(),
956 ipc_domain, ipc_username));
958 if (NT_STATUS_IS_OK(cli_session_setup(
960 ipc_password, strlen(ipc_password)+1,
961 ipc_password, strlen(ipc_password)+1,
963 /* Successful logon with given username. */
964 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
965 if (!NT_STATUS_IS_OK(result)) {
968 goto session_setup_done;
970 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
971 ipc_domain, ipc_username ));
977 /* Fall back to anonymous connection, this might fail later */
978 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
979 "connection for DC %s\n",
982 if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
984 DEBUG(5, ("Connected anonymously\n"));
985 result = cli_init_creds(*cli, "", "", "");
986 if (!NT_STATUS_IS_OK(result)) {
989 goto session_setup_done;
992 result = cli_nt_error(*cli);
994 if (NT_STATUS_IS_OK(result))
995 result = NT_STATUS_UNSUCCESSFUL;
997 /* We can't session setup */
1003 /* cache the server name for later connections */
1005 saf_store( domain->name, (*cli)->desthost );
1006 if (domain->alt_name && (*cli)->use_kerberos) {
1007 saf_store( domain->alt_name, (*cli)->desthost );
1010 winbindd_set_locator_kdc_envs(domain);
1012 result = cli_tcon_andx(*cli, "IPC$", "IPC", "", 0);
1014 if (!NT_STATUS_IS_OK(result)) {
1015 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
1022 /* set the domain if empty; needed for schannel connections */
1023 if ( !(*cli)->domain[0] ) {
1024 result = cli_set_domain((*cli), domain->name);
1025 if (!NT_STATUS_IS_OK(result)) {
1030 result = NT_STATUS_OK;
1034 SAFE_FREE(machine_account);
1035 SAFE_FREE(machine_password);
1036 SAFE_FREE(machine_krb5_principal);
1037 SAFE_FREE(ipc_username);
1038 SAFE_FREE(ipc_domain);
1039 SAFE_FREE(ipc_password);
1041 if (!NT_STATUS_IS_OK(result)) {
1042 winbind_add_failed_connection_entry(domain, controller, result);
1043 if ((*cli) != NULL) {
1052 /*******************************************************************
1053 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1056 Keeps the list unique by not adding duplicate entries.
1058 @param[in] mem_ctx talloc memory context to allocate from
1059 @param[in] domain_name domain of the DC
1060 @param[in] dcname name of the DC to add to the list
1061 @param[in] pss Internet address and port pair to add to the list
1062 @param[in,out] dcs array of dc_name_ip structures to add to
1063 @param[in,out] num_dcs number of dcs returned in the dcs array
1064 @return true if the list was added to, false otherwise
1065 *******************************************************************/
1067 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1068 const char *dcname, struct sockaddr_storage *pss,
1069 struct dc_name_ip **dcs, int *num)
1073 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1074 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1078 /* Make sure there's no duplicates in the list */
1079 for (i=0; i<*num; i++)
1081 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1082 (struct sockaddr *)(void *)pss))
1085 *dcs = TALLOC_REALLOC_ARRAY(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1090 fstrcpy((*dcs)[*num].name, dcname);
1091 (*dcs)[*num].ss = *pss;
1096 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1097 struct sockaddr_storage *pss, uint16 port,
1098 struct sockaddr_storage **addrs, int *num)
1100 *addrs = TALLOC_REALLOC_ARRAY(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1102 if (*addrs == NULL) {
1107 (*addrs)[*num] = *pss;
1108 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1114 /*******************************************************************
1115 convert an ip to a name
1116 *******************************************************************/
1118 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1119 const struct winbindd_domain *domain,
1120 struct sockaddr_storage *pss,
1123 struct ip_service ip_list;
1124 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1126 const char *dc_name;
1132 /* For active directory servers, try to get the ldap server name.
1133 None of these failures should be considered critical for now */
1135 if (lp_security() == SEC_ADS) {
1137 ADS_STATUS ads_status;
1138 char addr[INET6_ADDRSTRLEN];
1140 print_sockaddr(addr, sizeof(addr), pss);
1142 ads = ads_init(domain->alt_name, domain->name, addr);
1143 ads->auth.flags |= ADS_AUTH_NO_BIND;
1145 ads_status = ads_connect(ads);
1146 if (ADS_ERR_OK(ads_status)) {
1147 /* We got a cldap packet. */
1148 fstrcpy(name, ads->config.ldap_server_name);
1149 namecache_store(name, 0x20, 1, &ip_list);
1151 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1153 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1154 if (ads_closest_dc(ads)) {
1155 char *sitename = sitename_fetch(ads->config.realm);
1157 /* We're going to use this KDC for this realm/domain.
1158 If we are using sites, then force the krb5 libs
1161 create_local_private_krb5_conf_for_domain(domain->alt_name,
1167 SAFE_FREE(sitename);
1169 /* use an off site KDC */
1170 create_local_private_krb5_conf_for_domain(domain->alt_name,
1176 winbindd_set_locator_kdc_envs(domain);
1178 /* Ensure we contact this DC also. */
1179 saf_store( domain->name, name);
1180 saf_store( domain->alt_name, name);
1183 ads_destroy( &ads );
1187 ads_destroy( &ads );
1192 status = nbt_getdc(winbind_messaging_context(), 10, pss, domain->name,
1193 &domain->sid, nt_version, mem_ctx, &nt_version,
1195 if (NT_STATUS_IS_OK(status)) {
1196 fstrcpy(name, dc_name);
1197 namecache_store(name, 0x20, 1, &ip_list);
1201 /* try node status request */
1203 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1204 namecache_store(name, 0x20, 1, &ip_list);
1210 /*******************************************************************
1211 Retrieve a list of IP addresses for domain controllers.
1213 The array is sorted in the preferred connection order.
1215 @param[in] mem_ctx talloc memory context to allocate from
1216 @param[in] domain domain to retrieve DCs for
1217 @param[out] dcs array of dcs that will be returned
1218 @param[out] num_dcs number of dcs returned in the dcs array
1220 *******************************************************************/
1222 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1223 struct dc_name_ip **dcs, int *num_dcs)
1226 struct sockaddr_storage ss;
1227 struct ip_service *ip_list = NULL;
1228 int iplist_size = 0;
1231 enum security_types sec = (enum security_types)lp_security();
1233 is_our_domain = strequal(domain->name, lp_workgroup());
1235 /* If not our domain, get the preferred DC, by asking our primary DC */
1237 && get_dc_name_via_netlogon(domain, dcname, &ss)
1238 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1241 char addr[INET6_ADDRSTRLEN];
1242 print_sockaddr(addr, sizeof(addr), &ss);
1243 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1248 if (sec == SEC_ADS) {
1249 char *sitename = NULL;
1251 /* We need to make sure we know the local site before
1252 doing any DNS queries, as this will restrict the
1253 get_sorted_dc_list() call below to only fetching
1254 DNS records for the correct site. */
1256 /* Find any DC to get the site record.
1257 We deliberately don't care about the
1260 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1262 sitename = sitename_fetch(domain->alt_name);
1265 /* Do the site-specific AD dns lookup first. */
1266 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1267 &iplist_size, True);
1269 /* Add ips to the DC array. We don't look up the name
1270 of the DC in this function, but we fill in the char*
1271 of the ip now to make the failed connection cache
1273 for ( i=0; i<iplist_size; i++ ) {
1274 char addr[INET6_ADDRSTRLEN];
1275 print_sockaddr(addr, sizeof(addr),
1277 add_one_dc_unique(mem_ctx,
1286 SAFE_FREE(sitename);
1290 /* Now we add DCs from the main AD DNS lookup. */
1291 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1292 &iplist_size, True);
1294 for ( i=0; i<iplist_size; i++ ) {
1295 char addr[INET6_ADDRSTRLEN];
1296 print_sockaddr(addr, sizeof(addr),
1298 add_one_dc_unique(mem_ctx,
1310 /* Try standard netbios queries if no ADS */
1311 if (*num_dcs == 0) {
1312 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1315 for ( i=0; i<iplist_size; i++ ) {
1316 char addr[INET6_ADDRSTRLEN];
1317 print_sockaddr(addr, sizeof(addr),
1319 add_one_dc_unique(mem_ctx,
1334 /*******************************************************************
1335 Find and make a connection to a DC in the given domain.
1337 @param[in] mem_ctx talloc memory context to allocate from
1338 @param[in] domain domain to find a dc in
1339 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1340 @param[out] pss DC Internet address and port
1341 @param[out] fd fd of the open socket connected to the newly found dc
1342 @return true when a DC connection is made, false otherwise
1343 *******************************************************************/
1345 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1346 struct winbindd_domain *domain,
1347 fstring dcname, struct sockaddr_storage *pss, int *fd)
1349 struct dc_name_ip *dcs = NULL;
1352 const char **dcnames = NULL;
1353 int num_dcnames = 0;
1355 struct sockaddr_storage *addrs = NULL;
1366 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1369 for (i=0; i<num_dcs; i++) {
1371 if (!add_string_to_array(mem_ctx, dcs[i].name,
1372 &dcnames, &num_dcnames)) {
1375 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1376 &addrs, &num_addrs)) {
1381 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1384 if ((addrs == NULL) || (dcnames == NULL))
1387 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1388 num_addrs, 0, 10, fd, &fd_index, NULL);
1389 if (!NT_STATUS_IS_OK(status)) {
1390 for (i=0; i<num_dcs; i++) {
1391 char ab[INET6_ADDRSTRLEN];
1392 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1393 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1394 "domain %s address %s. Error was %s\n",
1395 domain->name, ab, nt_errstr(status) ));
1396 winbind_add_failed_connection_entry(domain,
1397 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1402 *pss = addrs[fd_index];
1404 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1405 /* Ok, we've got a name for the DC */
1406 fstrcpy(dcname, dcnames[fd_index]);
1410 /* Try to figure out the name */
1411 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1415 /* We can not continue without the DC's name */
1416 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1417 NT_STATUS_UNSUCCESSFUL);
1419 /* Throw away all arrays as we're doing this again. */
1423 TALLOC_FREE(dcnames);
1435 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1437 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1441 static void store_current_dc_in_gencache(const char *domain_name,
1442 const char *dc_name,
1443 struct cli_state *cli)
1445 char addr[INET6_ADDRSTRLEN];
1452 if (cli->fd == -1) {
1455 get_peer_addr(cli->fd, addr, sizeof(addr));
1457 key = current_dc_key(talloc_tos(), domain_name);
1462 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1463 if (value == NULL) {
1467 gencache_set(key, value, 0x7fffffff);
1473 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1474 const char *domain_name,
1475 char **p_dc_name, char **p_dc_ip)
1477 char *key, *value, *p;
1479 char *dc_name = NULL;
1482 key = current_dc_key(talloc_tos(), domain_name);
1486 if (!gencache_get(key, &value, NULL)) {
1489 p = strchr(value, ' ');
1493 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1494 if (dc_ip == NULL) {
1497 dc_name = talloc_strdup(mem_ctx, p+1);
1498 if (dc_name == NULL) {
1502 if (p_dc_ip != NULL) {
1506 if (p_dc_name != NULL) {
1507 *p_dc_name = dc_name;
1512 TALLOC_FREE(dc_name);
1518 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1519 struct winbindd_cm_conn *new_conn)
1521 TALLOC_CTX *mem_ctx;
1523 char *saf_servername = saf_fetch( domain->name );
1526 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1527 SAFE_FREE(saf_servername);
1528 set_domain_offline(domain);
1529 return NT_STATUS_NO_MEMORY;
1532 /* we have to check the server affinity cache here since
1533 later we select a DC based on response time and not preference */
1535 /* Check the negative connection cache
1536 before talking to it. It going down may have
1537 triggered the reconnection. */
1539 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1541 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1542 saf_servername, domain->name ));
1544 /* convert an ip address to a name */
1545 if (is_ipaddress( saf_servername ) ) {
1547 struct sockaddr_storage ss;
1549 if (!interpret_string_addr(&ss, saf_servername,
1551 return NT_STATUS_UNSUCCESSFUL;
1553 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1554 fstrcpy( domain->dcname, saf_name );
1556 winbind_add_failed_connection_entry(
1557 domain, saf_servername,
1558 NT_STATUS_UNSUCCESSFUL);
1561 fstrcpy( domain->dcname, saf_servername );
1564 SAFE_FREE( saf_servername );
1567 for (retries = 0; retries < 3; retries++) {
1571 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1573 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1574 domain->dcname, domain->name ));
1577 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1578 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1582 status = smbsock_connect(&domain->dcaddr, 0,
1585 if (!NT_STATUS_IS_OK(status)) {
1591 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1593 /* This is the one place where we will
1594 set the global winbindd offline state
1595 to true, if a "WINBINDD_OFFLINE" entry
1596 is found in the winbindd cache. */
1597 set_global_winbindd_state_offline();
1601 new_conn->cli = NULL;
1603 result = cm_prepare_connection(domain, fd, domain->dcname,
1604 &new_conn->cli, &retry);
1610 if (NT_STATUS_IS_OK(result)) {
1612 winbindd_set_locator_kdc_envs(domain);
1614 if (domain->online == False) {
1615 /* We're changing state from offline to online. */
1616 set_global_winbindd_state_online();
1618 set_domain_online(domain);
1621 * Much as I hate global state, this seems to be the point
1622 * where we can be certain that we have a proper connection to
1623 * a DC. wbinfo --dc-info needs that information, store it in
1624 * gencache with a looong timeout. This will need revisiting
1625 * once we start to connect to multiple DCs, wbcDcInfo is
1626 * already prepared for that.
1628 store_current_dc_in_gencache(domain->name, domain->dcname,
1631 /* Ensure we setup the retry handler. */
1632 set_domain_offline(domain);
1635 talloc_destroy(mem_ctx);
1639 /* Close down all open pipes on a connection. */
1641 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1645 /* We're closing down a possibly dead
1646 connection. Don't have impossibly long (10s) timeouts. */
1649 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1652 if (conn->samr_pipe != NULL) {
1653 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1654 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1656 &conn->sam_connect_handle,
1659 TALLOC_FREE(conn->samr_pipe);
1660 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1662 cli_set_timeout(conn->cli, 500);
1666 if (conn->lsa_pipe != NULL) {
1667 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1668 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1673 TALLOC_FREE(conn->lsa_pipe);
1674 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1676 cli_set_timeout(conn->cli, 500);
1680 if (conn->lsa_pipe_tcp != NULL) {
1681 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1682 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1687 TALLOC_FREE(conn->lsa_pipe_tcp);
1688 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1690 cli_set_timeout(conn->cli, 500);
1694 if (conn->netlogon_pipe != NULL) {
1695 TALLOC_FREE(conn->netlogon_pipe);
1696 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1698 cli_set_timeout(conn->cli, 500);
1703 cli_shutdown(conn->cli);
1709 void close_conns_after_fork(void)
1711 struct winbindd_domain *domain;
1712 struct winbindd_cli_state *cli_state;
1714 for (domain = domain_list(); domain; domain = domain->next) {
1715 struct cli_state *cli = domain->conn.cli;
1718 * first close the low level SMB TCP connection
1719 * so that we don't generate any SMBclose
1720 * requests in invalidate_cm_connection()
1722 if (cli && cli->fd != -1) {
1723 close(domain->conn.cli->fd);
1724 domain->conn.cli->fd = -1;
1727 invalidate_cm_connection(&domain->conn);
1730 for (cli_state = winbindd_client_list();
1732 cli_state = cli_state->next) {
1733 if (cli_state->sock >= 0) {
1734 close(cli_state->sock);
1735 cli_state->sock = -1;
1740 static bool connection_ok(struct winbindd_domain *domain)
1744 ok = cli_state_is_connected(domain->conn.cli);
1746 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1747 domain->dcname, domain->name));
1751 if (domain->online == False) {
1752 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1759 /* Initialize a new connection up to the RPC BIND.
1760 Bypass online status check so always does network calls. */
1762 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1766 /* Internal connections never use the network. */
1767 if (domain->internal) {
1768 domain->initialized = True;
1769 return NT_STATUS_OK;
1772 if (!winbindd_can_contact_domain(domain)) {
1773 invalidate_cm_connection(&domain->conn);
1774 domain->initialized = True;
1775 return NT_STATUS_OK;
1778 if (connection_ok(domain)) {
1779 if (!domain->initialized) {
1780 set_dc_type_and_flags(domain);
1782 return NT_STATUS_OK;
1785 invalidate_cm_connection(&domain->conn);
1787 result = cm_open_connection(domain, &domain->conn);
1789 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1790 set_dc_type_and_flags(domain);
1796 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1798 if (domain->internal) {
1799 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1802 if (domain->initialized && !domain->online) {
1803 /* We check for online status elsewhere. */
1804 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1807 return init_dc_connection_network(domain);
1810 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1814 status = init_dc_connection(domain);
1815 if (!NT_STATUS_IS_OK(status)) {
1819 if (!domain->internal && domain->conn.cli == NULL) {
1820 /* happens for trusted domains without inbound trust */
1821 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1824 return NT_STATUS_OK;
1827 /******************************************************************************
1828 Set the trust flags (direction and forest location) for a domain
1829 ******************************************************************************/
1831 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1833 struct winbindd_domain *our_domain;
1834 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1836 struct netr_DomainTrustList trusts;
1838 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1839 NETR_TRUST_FLAG_OUTBOUND |
1840 NETR_TRUST_FLAG_INBOUND);
1841 struct rpc_pipe_client *cli;
1842 TALLOC_CTX *mem_ctx = NULL;
1843 struct dcerpc_binding_handle *b;
1845 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1847 /* Our primary domain doesn't need to worry about trust flags.
1848 Force it to go through the network setup */
1849 if ( domain->primary ) {
1853 our_domain = find_our_domain();
1855 if ( !connection_ok(our_domain) ) {
1856 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1860 /* This won't work unless our domain is AD */
1862 if ( !our_domain->active_directory ) {
1866 /* Use DsEnumerateDomainTrusts to get us the trust direction
1869 result = cm_connect_netlogon(our_domain, &cli);
1871 if (!NT_STATUS_IS_OK(result)) {
1872 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1873 "a connection to %s for PIPE_NETLOGON (%s)\n",
1874 domain->name, nt_errstr(result)));
1878 b = cli->binding_handle;
1880 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1881 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1885 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1890 if (!NT_STATUS_IS_OK(result)) {
1891 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1892 "failed to query trusted domain list: %s\n",
1893 nt_errstr(result)));
1894 talloc_destroy(mem_ctx);
1897 if (!W_ERROR_IS_OK(werr)) {
1898 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1899 "failed to query trusted domain list: %s\n",
1901 talloc_destroy(mem_ctx);
1905 /* Now find the domain name and get the flags */
1907 for ( i=0; i<trusts.count; i++ ) {
1908 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1909 domain->domain_flags = trusts.array[i].trust_flags;
1910 domain->domain_type = trusts.array[i].trust_type;
1911 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1913 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1914 domain->active_directory = True;
1916 /* This flag is only set if the domain is *our*
1917 primary domain and the primary domain is in
1920 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1922 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1923 "native mode.\n", domain->name,
1924 domain->native_mode ? "" : "NOT "));
1926 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1927 "running active directory.\n", domain->name,
1928 domain->active_directory ? "" : "NOT "));
1930 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1931 domain->can_do_validation6 = domain->active_directory;
1933 domain->initialized = True;
1939 talloc_destroy( mem_ctx );
1941 return domain->initialized;
1944 /******************************************************************************
1945 We can 'sense' certain things about the DC by it's replies to certain
1948 This tells us if this particular remote server is Active Directory, and if it
1950 ******************************************************************************/
1952 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1954 NTSTATUS status, result;
1956 TALLOC_CTX *mem_ctx = NULL;
1957 struct rpc_pipe_client *cli = NULL;
1958 struct policy_handle pol;
1959 union dssetup_DsRoleInfo info;
1960 union lsa_PolicyInformation *lsa_info = NULL;
1962 if (!connection_ok(domain)) {
1966 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1969 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1973 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1975 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1976 &ndr_table_dssetup.syntax_id,
1979 if (!NT_STATUS_IS_OK(status)) {
1980 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1981 "PI_DSSETUP on domain %s: (%s)\n",
1982 domain->name, nt_errstr(status)));
1984 /* if this is just a non-AD domain we need to continue
1985 * identifying so that we can in the end return with
1986 * domain->initialized = True - gd */
1991 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1992 DS_ROLE_BASIC_INFORMATION,
1997 if (NT_STATUS_IS_OK(status)) {
1998 result = werror_to_ntstatus(werr);
2000 if (!NT_STATUS_IS_OK(status)) {
2001 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
2002 "on domain %s failed: (%s)\n",
2003 domain->name, nt_errstr(status)));
2005 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
2006 * every opcode on the DSSETUP pipe, continue with
2007 * no_dssetup mode here as well to get domain->initialized
2010 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
2014 TALLOC_FREE(mem_ctx);
2018 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
2019 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
2020 domain->native_mode = True;
2022 domain->native_mode = False;
2026 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
2027 &ndr_table_lsarpc.syntax_id, &cli);
2029 if (!NT_STATUS_IS_OK(status)) {
2030 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2031 "PI_LSARPC on domain %s: (%s)\n",
2032 domain->name, nt_errstr(status)));
2034 TALLOC_FREE(mem_ctx);
2038 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
2039 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
2041 if (NT_STATUS_IS_OK(status)) {
2042 /* This particular query is exactly what Win2k clients use
2043 to determine that the DC is active directory */
2044 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
2046 LSA_POLICY_INFO_DNS,
2051 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2052 domain->active_directory = True;
2054 if (lsa_info->dns.name.string) {
2055 fstrcpy(domain->name, lsa_info->dns.name.string);
2058 if (lsa_info->dns.dns_domain.string) {
2059 fstrcpy(domain->alt_name,
2060 lsa_info->dns.dns_domain.string);
2063 /* See if we can set some domain trust flags about
2066 if (lsa_info->dns.dns_forest.string) {
2067 fstrcpy(domain->forest_name,
2068 lsa_info->dns.dns_forest.string);
2070 if (strequal(domain->forest_name, domain->alt_name)) {
2071 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2075 if (lsa_info->dns.sid) {
2076 sid_copy(&domain->sid, lsa_info->dns.sid);
2079 domain->active_directory = False;
2081 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2082 SEC_FLAG_MAXIMUM_ALLOWED,
2085 if (!NT_STATUS_IS_OK(status)) {
2089 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2091 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2094 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2096 if (lsa_info->account_domain.name.string) {
2097 fstrcpy(domain->name,
2098 lsa_info->account_domain.name.string);
2101 if (lsa_info->account_domain.sid) {
2102 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2108 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2109 domain->name, domain->native_mode ? "" : "NOT "));
2111 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2112 domain->name, domain->active_directory ? "" : "NOT "));
2114 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2115 domain->can_do_validation6 = domain->active_directory;
2119 TALLOC_FREE(mem_ctx);
2121 domain->initialized = True;
2124 /**********************************************************************
2125 Set the domain_flags (trust attributes, domain operating modes, etc...
2126 ***********************************************************************/
2128 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2130 /* we always have to contact our primary domain */
2132 if ( domain->primary ) {
2133 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2134 "primary domain\n"));
2135 set_dc_type_and_flags_connect( domain );
2139 /* Use our DC to get the information if possible */
2141 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2142 /* Otherwise, fallback to contacting the
2144 set_dc_type_and_flags_connect( domain );
2152 /**********************************************************************
2153 ***********************************************************************/
2155 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2156 struct netlogon_creds_CredentialState **ppdc)
2158 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2159 struct rpc_pipe_client *netlogon_pipe;
2161 if (lp_client_schannel() == False) {
2162 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2165 result = cm_connect_netlogon(domain, &netlogon_pipe);
2166 if (!NT_STATUS_IS_OK(result)) {
2170 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2173 if (!domain->conn.netlogon_pipe->dc) {
2174 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2177 *ppdc = domain->conn.netlogon_pipe->dc;
2178 return NT_STATUS_OK;
2181 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2182 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2184 struct winbindd_cm_conn *conn;
2185 NTSTATUS status, result;
2186 struct netlogon_creds_CredentialState *p_creds;
2187 char *machine_password = NULL;
2188 char *machine_account = NULL;
2189 char *domain_name = NULL;
2191 if (sid_check_is_domain(&domain->sid)) {
2192 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2195 status = init_dc_connection_rpc(domain);
2196 if (!NT_STATUS_IS_OK(status)) {
2200 conn = &domain->conn;
2202 if (rpccli_is_connected(conn->samr_pipe)) {
2206 TALLOC_FREE(conn->samr_pipe);
2209 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2210 * sign and sealed pipe using the machine account password by
2211 * preference. If we can't - try schannel, if that fails, try
2215 if ((conn->cli->user_name[0] == '\0') ||
2216 (conn->cli->domain[0] == '\0') ||
2217 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2219 status = get_trust_creds(domain, &machine_password,
2220 &machine_account, NULL);
2221 if (!NT_STATUS_IS_OK(status)) {
2222 DEBUG(10, ("cm_connect_sam: No no user available for "
2223 "domain %s, trying schannel\n", conn->cli->domain));
2226 domain_name = domain->name;
2228 machine_password = SMB_STRDUP(conn->cli->password);
2229 machine_account = SMB_STRDUP(conn->cli->user_name);
2230 domain_name = conn->cli->domain;
2233 if (!machine_password || !machine_account) {
2234 status = NT_STATUS_NO_MEMORY;
2238 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2239 authenticated SAMR pipe with sign & seal. */
2240 status = cli_rpc_pipe_open_spnego_ntlmssp(conn->cli,
2241 &ndr_table_samr.syntax_id,
2243 DCERPC_AUTH_LEVEL_PRIVACY,
2249 if (!NT_STATUS_IS_OK(status)) {
2250 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2251 "pipe for domain %s using NTLMSSP "
2252 "authenticated pipe: user %s\\%s. Error was "
2253 "%s\n", domain->name, domain_name,
2254 machine_account, nt_errstr(status)));
2258 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2259 "domain %s using NTLMSSP authenticated "
2260 "pipe: user %s\\%s\n", domain->name,
2261 domain_name, machine_account));
2263 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2264 conn->samr_pipe->desthost,
2265 SEC_FLAG_MAXIMUM_ALLOWED,
2266 &conn->sam_connect_handle,
2268 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2271 if (NT_STATUS_IS_OK(status)) {
2275 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2276 "failed for domain %s, error was %s. Trying schannel\n",
2277 domain->name, nt_errstr(status) ));
2278 TALLOC_FREE(conn->samr_pipe);
2282 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2284 status = cm_get_schannel_creds(domain, &p_creds);
2285 if (!NT_STATUS_IS_OK(status)) {
2286 /* If this call fails - conn->cli can now be NULL ! */
2287 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2288 "for domain %s (error %s), trying anon\n",
2290 nt_errstr(status) ));
2293 status = cli_rpc_pipe_open_schannel_with_key
2294 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2295 DCERPC_AUTH_LEVEL_PRIVACY,
2296 domain->name, &p_creds, &conn->samr_pipe);
2298 if (!NT_STATUS_IS_OK(status)) {
2299 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2300 "domain %s using schannel. Error was %s\n",
2301 domain->name, nt_errstr(status) ));
2304 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2305 "schannel.\n", domain->name ));
2307 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2308 conn->samr_pipe->desthost,
2309 SEC_FLAG_MAXIMUM_ALLOWED,
2310 &conn->sam_connect_handle,
2312 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2315 if (NT_STATUS_IS_OK(status)) {
2318 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2319 "for domain %s, error was %s. Trying anonymous\n",
2320 domain->name, nt_errstr(status) ));
2321 TALLOC_FREE(conn->samr_pipe);
2325 /* Finally fall back to anonymous. */
2326 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2329 if (!NT_STATUS_IS_OK(status)) {
2333 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2334 conn->samr_pipe->desthost,
2335 SEC_FLAG_MAXIMUM_ALLOWED,
2336 &conn->sam_connect_handle,
2338 if (!NT_STATUS_IS_OK(status)) {
2339 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2340 "for domain %s Error was %s\n",
2341 domain->name, nt_errstr(status) ));
2344 if (!NT_STATUS_IS_OK(result)) {
2346 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2347 "for domain %s Error was %s\n",
2348 domain->name, nt_errstr(result)));
2353 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2355 &conn->sam_connect_handle,
2356 SEC_FLAG_MAXIMUM_ALLOWED,
2358 &conn->sam_domain_handle,
2360 if (!NT_STATUS_IS_OK(status)) {
2367 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2369 * if we got access denied, we might just have no access rights
2370 * to talk to the remote samr server server (e.g. when we are a
2371 * PDC and we are connecting a w2k8 pdc via an interdomain
2372 * trust). In that case do not invalidate the whole connection
2375 TALLOC_FREE(conn->samr_pipe);
2376 ZERO_STRUCT(conn->sam_domain_handle);
2378 } else if (!NT_STATUS_IS_OK(status)) {
2379 invalidate_cm_connection(conn);
2383 *cli = conn->samr_pipe;
2384 *sam_handle = conn->sam_domain_handle;
2385 SAFE_FREE(machine_password);
2386 SAFE_FREE(machine_account);
2390 /**********************************************************************
2391 open an schanneld ncacn_ip_tcp connection to LSA
2392 ***********************************************************************/
2394 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2395 TALLOC_CTX *mem_ctx,
2396 struct rpc_pipe_client **cli)
2398 struct winbindd_cm_conn *conn;
2399 struct netlogon_creds_CredentialState *creds;
2402 DEBUG(10,("cm_connect_lsa_tcp\n"));
2404 status = init_dc_connection_rpc(domain);
2405 if (!NT_STATUS_IS_OK(status)) {
2409 conn = &domain->conn;
2411 if (conn->lsa_pipe_tcp &&
2412 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2413 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2414 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2418 TALLOC_FREE(conn->lsa_pipe_tcp);
2420 status = cm_get_schannel_creds(domain, &creds);
2421 if (!NT_STATUS_IS_OK(status)) {
2425 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2426 &ndr_table_lsarpc.syntax_id,
2428 DCERPC_AUTH_LEVEL_PRIVACY,
2431 &conn->lsa_pipe_tcp);
2432 if (!NT_STATUS_IS_OK(status)) {
2433 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2434 nt_errstr(status)));
2439 if (!NT_STATUS_IS_OK(status)) {
2440 TALLOC_FREE(conn->lsa_pipe_tcp);
2444 *cli = conn->lsa_pipe_tcp;
2449 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2450 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2452 struct winbindd_cm_conn *conn;
2453 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2454 struct netlogon_creds_CredentialState *p_creds;
2456 result = init_dc_connection_rpc(domain);
2457 if (!NT_STATUS_IS_OK(result))
2460 conn = &domain->conn;
2462 if (rpccli_is_connected(conn->lsa_pipe)) {
2466 TALLOC_FREE(conn->lsa_pipe);
2468 if ((conn->cli->user_name[0] == '\0') ||
2469 (conn->cli->domain[0] == '\0') ||
2470 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2471 DEBUG(10, ("cm_connect_lsa: No no user available for "
2472 "domain %s, trying schannel\n", conn->cli->domain));
2476 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2477 * authenticated LSA pipe with sign & seal. */
2478 result = cli_rpc_pipe_open_spnego_ntlmssp
2479 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2480 DCERPC_AUTH_LEVEL_PRIVACY,
2481 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2484 if (!NT_STATUS_IS_OK(result)) {
2485 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2486 "domain %s using NTLMSSP authenticated pipe: user "
2487 "%s\\%s. Error was %s. Trying schannel.\n",
2488 domain->name, conn->cli->domain,
2489 conn->cli->user_name, nt_errstr(result)));
2493 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2494 "NTLMSSP authenticated pipe: user %s\\%s\n",
2495 domain->name, conn->cli->domain, conn->cli->user_name ));
2497 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2498 SEC_FLAG_MAXIMUM_ALLOWED,
2500 if (NT_STATUS_IS_OK(result)) {
2504 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2507 TALLOC_FREE(conn->lsa_pipe);
2511 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2513 result = cm_get_schannel_creds(domain, &p_creds);
2514 if (!NT_STATUS_IS_OK(result)) {
2515 /* If this call fails - conn->cli can now be NULL ! */
2516 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2517 "for domain %s (error %s), trying anon\n",
2519 nt_errstr(result) ));
2522 result = cli_rpc_pipe_open_schannel_with_key
2523 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2524 DCERPC_AUTH_LEVEL_PRIVACY,
2525 domain->name, &p_creds, &conn->lsa_pipe);
2527 if (!NT_STATUS_IS_OK(result)) {
2528 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2529 "domain %s using schannel. Error was %s\n",
2530 domain->name, nt_errstr(result) ));
2533 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2534 "schannel.\n", domain->name ));
2536 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2537 SEC_FLAG_MAXIMUM_ALLOWED,
2539 if (NT_STATUS_IS_OK(result)) {
2543 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2546 TALLOC_FREE(conn->lsa_pipe);
2550 result = cli_rpc_pipe_open_noauth(conn->cli,
2551 &ndr_table_lsarpc.syntax_id,
2553 if (!NT_STATUS_IS_OK(result)) {
2554 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2558 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2559 SEC_FLAG_MAXIMUM_ALLOWED,
2562 if (!NT_STATUS_IS_OK(result)) {
2563 invalidate_cm_connection(conn);
2567 *cli = conn->lsa_pipe;
2568 *lsa_policy = conn->lsa_policy;
2572 /****************************************************************************
2573 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2574 session key stored in conn->netlogon_pipe->dc->sess_key.
2575 ****************************************************************************/
2577 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2578 struct rpc_pipe_client **cli)
2580 struct winbindd_cm_conn *conn;
2583 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2585 enum netr_SchannelType sec_chan_type;
2586 const char *account_name;
2587 struct rpc_pipe_client *netlogon_pipe = NULL;
2591 result = init_dc_connection_rpc(domain);
2592 if (!NT_STATUS_IS_OK(result)) {
2596 conn = &domain->conn;
2598 if (rpccli_is_connected(conn->netlogon_pipe)) {
2599 *cli = conn->netlogon_pipe;
2600 return NT_STATUS_OK;
2603 TALLOC_FREE(conn->netlogon_pipe);
2605 result = cli_rpc_pipe_open_noauth(conn->cli,
2606 &ndr_table_netlogon.syntax_id,
2608 if (!NT_STATUS_IS_OK(result)) {
2612 if ((!IS_DC) && (!domain->primary)) {
2613 /* Clear the schannel request bit and drop down */
2614 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2618 if (lp_client_schannel() != False) {
2619 neg_flags |= NETLOGON_NEG_SCHANNEL;
2622 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2625 TALLOC_FREE(netlogon_pipe);
2626 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2629 result = rpccli_netlogon_setup_creds(
2631 domain->dcname, /* server name. */
2632 domain->name, /* domain name */
2633 global_myname(), /* client name */
2634 account_name, /* machine account */
2635 mach_pwd, /* machine password */
2636 sec_chan_type, /* from get_trust_pw */
2639 if (!NT_STATUS_IS_OK(result)) {
2640 TALLOC_FREE(netlogon_pipe);
2644 if ((lp_client_schannel() == True) &&
2645 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2646 DEBUG(3, ("Server did not offer schannel\n"));
2647 TALLOC_FREE(netlogon_pipe);
2648 return NT_STATUS_ACCESS_DENIED;
2652 if ((lp_client_schannel() == False) ||
2653 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2655 * NetSamLogonEx only works for schannel
2657 domain->can_do_samlogon_ex = False;
2659 /* We're done - just keep the existing connection to NETLOGON
2661 conn->netlogon_pipe = netlogon_pipe;
2662 *cli = conn->netlogon_pipe;
2663 return NT_STATUS_OK;
2666 /* Using the credentials from the first pipe, open a signed and sealed
2667 second netlogon pipe. The session key is stored in the schannel
2668 part of the new pipe auth struct.
2671 result = cli_rpc_pipe_open_schannel_with_key(
2672 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2673 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2674 &conn->netlogon_pipe);
2676 /* We can now close the initial netlogon pipe. */
2677 TALLOC_FREE(netlogon_pipe);
2679 if (!NT_STATUS_IS_OK(result)) {
2680 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2681 "was %s\n", nt_errstr(result)));
2683 invalidate_cm_connection(conn);
2688 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2689 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2690 * supported). We used to only try SamLogonEx for AD, but
2691 * Samba DCs can also do it. And because we don't distinguish
2692 * between Samba and NT4, always try it once.
2694 domain->can_do_samlogon_ex = true;
2696 *cli = conn->netlogon_pipe;
2697 return NT_STATUS_OK;
2700 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2703 struct server_id server_id,
2706 struct winbindd_domain *domain;
2707 char *freeit = NULL;
2711 || (data->data == NULL)
2712 || (data->length == 0)
2713 || (data->data[data->length-1] != '\0')) {
2714 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2719 addr = (char *)data->data;
2720 DEBUG(10, ("IP %s dropped\n", addr));
2722 if (!is_ipaddress(addr)) {
2725 * Some code sends us ip addresses with the /netmask
2728 slash = strchr(addr, '/');
2729 if (slash == NULL) {
2730 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2734 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2735 if (freeit == NULL) {
2736 DEBUG(1, ("talloc failed\n"));
2740 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2743 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2744 char sockaddr[INET6_ADDRSTRLEN];
2745 if (domain->conn.cli == NULL) {
2748 if (domain->conn.cli->fd == -1) {
2751 client_socket_addr(domain->conn.cli->fd, sockaddr,
2753 if (strequal(sockaddr, addr)) {
2754 close(domain->conn.cli->fd);
2755 domain->conn.cli->fd = -1;
2758 TALLOC_FREE(freeit);