2 Unix SMB/CIFS implementation.
4 Winbind daemon connection manager
6 Copyright (C) Tim Potter 2001
7 Copyright (C) Andrew Bartlett 2002
8 Copyright (C) Gerald (Jerry) Carter 2003-2005.
9 Copyright (C) Volker Lendecke 2004-2005
10 Copyright (C) Jeremy Allison 2006
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 We need to manage connections to domain controllers without having to
28 mess up the main winbindd code with other issues. The aim of the
29 connection manager is to:
31 - make connections to domain controllers and cache them
32 - re-establish connections when networks or servers go down
33 - centralise the policy on connection timeouts, domain controller
35 - manage re-entrancy for when winbindd becomes able to handle
36 multiple outstanding rpc requests
38 Why not have connection management as part of the rpc layer like tng?
39 Good question. This code may morph into libsmb/rpc_cache.c or something
40 like that but at the moment it's simply staying as part of winbind. I
41 think the TNG architecture of forcing every user of the rpc layer to use
42 the connection caching system is a bad idea. It should be an optional
43 method of using the routines.
45 The TNG design is quite good but I disagree with some aspects of the
53 - I'm pretty annoyed by all the make_nmb_name() stuff. It should be
54 moved down into another function.
56 - Take care when destroying cli_structs as they can be shared between
63 #include "../libcli/auth/libcli_auth.h"
64 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
65 #include "rpc_client/cli_pipe.h"
66 #include "rpc_client/cli_netlogon.h"
67 #include "../librpc/gen_ndr/ndr_samr_c.h"
68 #include "../librpc/gen_ndr/ndr_lsa_c.h"
69 #include "rpc_client/cli_lsarpc.h"
70 #include "../librpc/gen_ndr/ndr_dssetup_c.h"
71 #include "libads/sitename_cache.h"
72 #include "libsmb/libsmb.h"
73 #include "libsmb/clidgram.h"
76 #include "../libcli/security/security.h"
79 #include "auth/gensec/gensec.h"
82 #define DBGC_CLASS DBGC_WINBIND
86 struct sockaddr_storage ss;
89 extern struct winbindd_methods reconnect_methods;
90 extern bool override_logfile;
92 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
93 static void set_dc_type_and_flags( struct winbindd_domain *domain );
94 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
95 struct dc_name_ip **dcs, int *num_dcs);
97 /****************************************************************
98 Child failed to find DC's. Reschedule check.
99 ****************************************************************/
101 static void msg_failed_to_go_online(struct messaging_context *msg,
104 struct server_id server_id,
107 struct winbindd_domain *domain;
108 const char *domainname = (const char *)data->data;
110 if (data->data == NULL || data->length == 0) {
114 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
116 for (domain = domain_list(); domain; domain = domain->next) {
117 if (domain->internal) {
121 if (strequal(domain->name, domainname)) {
122 if (domain->online) {
123 /* We're already online, ignore. */
124 DEBUG(5,("msg_fail_to_go_online: domain %s "
125 "already online.\n", domainname));
129 /* Reschedule the online check. */
130 set_domain_offline(domain);
136 /****************************************************************
137 Actually cause a reconnect from a message.
138 ****************************************************************/
140 static void msg_try_to_go_online(struct messaging_context *msg,
143 struct server_id server_id,
146 struct winbindd_domain *domain;
147 const char *domainname = (const char *)data->data;
149 if (data->data == NULL || data->length == 0) {
153 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
155 for (domain = domain_list(); domain; domain = domain->next) {
156 if (domain->internal) {
160 if (strequal(domain->name, domainname)) {
162 if (domain->online) {
163 /* We're already online, ignore. */
164 DEBUG(5,("msg_try_to_go_online: domain %s "
165 "already online.\n", domainname));
169 /* This call takes care of setting the online
170 flag to true if we connected, or re-adding
171 the offline handler if false. Bypasses online
172 check so always does network calls. */
174 init_dc_connection_network(domain);
180 /****************************************************************
181 Fork a child to try and contact a DC. Do this as contacting a
182 DC requires blocking lookups and we don't want to block our
184 ****************************************************************/
186 static bool fork_child_dc_connect(struct winbindd_domain *domain)
188 struct dc_name_ip *dcs = NULL;
190 TALLOC_CTX *mem_ctx = NULL;
191 pid_t parent_pid = sys_getpid();
195 if (domain->dc_probe_pid != (pid_t)-1) {
197 * We might already have a DC probe
198 * child working, check.
200 if (process_exists_by_pid(domain->dc_probe_pid)) {
201 DEBUG(10,("fork_child_dc_connect: pid %u already "
202 "checking for DC's.\n",
203 (unsigned int)domain->dc_probe_pid));
206 domain->dc_probe_pid = (pid_t)-1;
209 domain->dc_probe_pid = sys_fork();
211 if (domain->dc_probe_pid == (pid_t)-1) {
212 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
216 if (domain->dc_probe_pid != (pid_t)0) {
218 messaging_register(winbind_messaging_context(), NULL,
219 MSG_WINBIND_TRY_TO_GO_ONLINE,
220 msg_try_to_go_online);
221 messaging_register(winbind_messaging_context(), NULL,
222 MSG_WINBIND_FAILED_TO_GO_ONLINE,
223 msg_failed_to_go_online);
229 /* Leave messages blocked - we will never process one. */
231 if (!override_logfile) {
232 if (asprintf(&lfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
233 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
238 status = winbindd_reinit_after_fork(NULL, lfile);
239 if (!NT_STATUS_IS_OK(status)) {
240 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
242 messaging_send_buf(winbind_messaging_context(),
243 pid_to_procid(parent_pid),
244 MSG_WINBIND_FAILED_TO_GO_ONLINE,
245 (uint8 *)domain->name,
246 strlen(domain->name)+1);
251 mem_ctx = talloc_init("fork_child_dc_connect");
253 DEBUG(0,("talloc_init failed.\n"));
254 messaging_send_buf(winbind_messaging_context(),
255 pid_to_procid(parent_pid),
256 MSG_WINBIND_FAILED_TO_GO_ONLINE,
257 (uint8 *)domain->name,
258 strlen(domain->name)+1);
262 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
263 /* Still offline ? Can't find DC's. */
264 messaging_send_buf(winbind_messaging_context(),
265 pid_to_procid(parent_pid),
266 MSG_WINBIND_FAILED_TO_GO_ONLINE,
267 (uint8 *)domain->name,
268 strlen(domain->name)+1);
272 /* We got a DC. Send a message to our parent to get it to
273 try and do the same. */
275 messaging_send_buf(winbind_messaging_context(),
276 pid_to_procid(parent_pid),
277 MSG_WINBIND_TRY_TO_GO_ONLINE,
278 (uint8 *)domain->name,
279 strlen(domain->name)+1);
283 /****************************************************************
284 Handler triggered if we're offline to try and detect a DC.
285 ****************************************************************/
287 static void check_domain_online_handler(struct event_context *ctx,
288 struct timed_event *te,
292 struct winbindd_domain *domain =
293 (struct winbindd_domain *)private_data;
295 DEBUG(10,("check_domain_online_handler: called for domain "
296 "%s (online = %s)\n", domain->name,
297 domain->online ? "True" : "False" ));
299 TALLOC_FREE(domain->check_online_event);
301 /* Are we still in "startup" mode ? */
303 if (domain->startup && (time_mono(NULL) > domain->startup_time + 30)) {
304 /* No longer in "startup" mode. */
305 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
307 domain->startup = False;
310 /* We've been told to stay offline, so stay
313 if (get_global_winbindd_state_offline()) {
314 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
319 /* Fork a child to test if it can contact a DC.
320 If it can then send ourselves a message to
321 cause a reconnect. */
323 fork_child_dc_connect(domain);
326 /****************************************************************
327 If we're still offline setup the timeout check.
328 ****************************************************************/
330 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
332 int wbr = lp_winbind_reconnect_delay();
334 if (domain->startup) {
335 domain->check_online_timeout = 10;
336 } else if (domain->check_online_timeout < wbr) {
337 domain->check_online_timeout = wbr;
341 /****************************************************************
342 Set domain offline and also add handler to put us back online
344 ****************************************************************/
346 void set_domain_offline(struct winbindd_domain *domain)
348 DEBUG(10,("set_domain_offline: called for domain %s\n",
351 TALLOC_FREE(domain->check_online_event);
353 if (domain->internal) {
354 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
359 domain->online = False;
361 /* Offline domains are always initialized. They're
362 re-initialized when they go back online. */
364 domain->initialized = True;
366 /* We only add the timeout handler that checks and
367 allows us to go back online when we've not
368 been told to remain offline. */
370 if (get_global_winbindd_state_offline()) {
371 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
376 /* If we're in startup mode, check again in 10 seconds, not in
377 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
379 calc_new_online_timeout_check(domain);
381 domain->check_online_event = event_add_timed(winbind_event_context(),
383 timeval_current_ofs(domain->check_online_timeout,0),
384 check_domain_online_handler,
387 /* The above *has* to succeed for winbindd to work. */
388 if (!domain->check_online_event) {
389 smb_panic("set_domain_offline: failed to add online handler");
392 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
395 /* Send an offline message to the idmap child when our
396 primary domain goes offline */
398 if ( domain->primary ) {
399 struct winbindd_child *idmap = idmap_child();
401 if ( idmap->pid != 0 ) {
402 messaging_send_buf(winbind_messaging_context(),
403 pid_to_procid(idmap->pid),
405 (uint8 *)domain->name,
406 strlen(domain->name)+1);
413 /****************************************************************
414 Set domain online - if allowed.
415 ****************************************************************/
417 static void set_domain_online(struct winbindd_domain *domain)
419 DEBUG(10,("set_domain_online: called for domain %s\n",
422 if (domain->internal) {
423 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
428 if (get_global_winbindd_state_offline()) {
429 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
434 winbindd_set_locator_kdc_envs(domain);
436 /* If we are waiting to get a krb5 ticket, trigger immediately. */
437 ccache_regain_all_now();
439 /* Ok, we're out of any startup mode now... */
440 domain->startup = False;
442 if (domain->online == False) {
443 /* We were offline - now we're online. We default to
444 using the MS-RPC backend if we started offline,
445 and if we're going online for the first time we
446 should really re-initialize the backends and the
447 checks to see if we're talking to an AD or NT domain.
450 domain->initialized = False;
452 /* 'reconnect_methods' is the MS-RPC backend. */
453 if (domain->backend == &reconnect_methods) {
454 domain->backend = NULL;
458 /* Ensure we have no online timeout checks. */
459 domain->check_online_timeout = 0;
460 TALLOC_FREE(domain->check_online_event);
462 /* Ensure we ignore any pending child messages. */
463 messaging_deregister(winbind_messaging_context(),
464 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
465 messaging_deregister(winbind_messaging_context(),
466 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
468 domain->online = True;
470 /* Send an online message to the idmap child when our
471 primary domain comes online */
473 if ( domain->primary ) {
474 struct winbindd_child *idmap = idmap_child();
476 if ( idmap->pid != 0 ) {
477 messaging_send_buf(winbind_messaging_context(),
478 pid_to_procid(idmap->pid),
480 (uint8 *)domain->name,
481 strlen(domain->name)+1);
488 /****************************************************************
489 Requested to set a domain online.
490 ****************************************************************/
492 void set_domain_online_request(struct winbindd_domain *domain)
496 DEBUG(10,("set_domain_online_request: called for domain %s\n",
499 if (get_global_winbindd_state_offline()) {
500 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
505 if (domain->internal) {
506 DEBUG(10, ("set_domain_online_request: Internal domains are "
511 /* We've been told it's safe to go online and
512 try and connect to a DC. But I don't believe it
513 because network manager seems to lie.
514 Wait at least 5 seconds. Heuristics suck... */
519 /* Go into "startup" mode again. */
520 domain->startup_time = time_mono(NULL);
521 domain->startup = True;
525 if (!domain->check_online_event) {
526 /* If we've come from being globally offline we
527 don't have a check online event handler set.
528 We need to add one now we're trying to go
531 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
535 TALLOC_FREE(domain->check_online_event);
537 domain->check_online_event = event_add_timed(winbind_event_context(),
540 check_domain_online_handler,
543 /* The above *has* to succeed for winbindd to work. */
544 if (!domain->check_online_event) {
545 smb_panic("set_domain_online_request: failed to add online handler");
549 /****************************************************************
550 Add -ve connection cache entries for domain and realm.
551 ****************************************************************/
553 static void winbind_add_failed_connection_entry(
554 const struct winbindd_domain *domain,
558 add_failed_connection_entry(domain->name, server, result);
559 /* If this was the saf name for the last thing we talked to,
561 saf_delete(domain->name);
562 if (*domain->alt_name) {
563 add_failed_connection_entry(domain->alt_name, server, result);
564 saf_delete(domain->alt_name);
566 winbindd_unset_locator_kdc_env(domain);
569 /* Choose between anonymous or authenticated connections. We need to use
570 an authenticated connection if DCs have the RestrictAnonymous registry
571 entry set > 0, or the "Additional restrictions for anonymous
572 connections" set in the win2k Local Security Policy.
574 Caller to free() result in domain, username, password
577 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
579 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
580 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
581 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
583 if (*username && **username) {
585 if (!*domain || !**domain)
586 *domain = smb_xstrdup(lp_workgroup());
588 if (!*password || !**password)
589 *password = smb_xstrdup("");
591 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
592 *domain, *username));
595 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
596 *username = smb_xstrdup("");
597 *domain = smb_xstrdup("");
598 *password = smb_xstrdup("");
602 static bool get_dc_name_via_netlogon(struct winbindd_domain *domain,
604 struct sockaddr_storage *dc_ss)
606 struct winbindd_domain *our_domain = NULL;
607 struct rpc_pipe_client *netlogon_pipe = NULL;
611 unsigned int orig_timeout;
612 const char *tmp = NULL;
614 struct dcerpc_binding_handle *b;
616 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
623 if (domain->primary) {
627 our_domain = find_our_domain();
629 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
633 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
634 if (!NT_STATUS_IS_OK(result)) {
635 talloc_destroy(mem_ctx);
639 b = netlogon_pipe->binding_handle;
641 /* This call can take a long time - allow the server to time out.
642 35 seconds should do it. */
644 orig_timeout = rpccli_set_timeout(netlogon_pipe, 35000);
646 if (our_domain->active_directory) {
647 struct netr_DsRGetDCNameInfo *domain_info = NULL;
649 result = dcerpc_netr_DsRGetDCName(b,
658 if (NT_STATUS_IS_OK(result) && W_ERROR_IS_OK(werr)) {
660 mem_ctx, domain_info->dc_unc);
662 DEBUG(0, ("talloc_strdup failed\n"));
663 talloc_destroy(mem_ctx);
666 if (strlen(domain->alt_name) == 0) {
667 fstrcpy(domain->alt_name,
668 domain_info->domain_name);
670 if (strlen(domain->forest_name) == 0) {
671 fstrcpy(domain->forest_name,
672 domain_info->forest_name);
676 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
683 /* And restore our original timeout. */
684 rpccli_set_timeout(netlogon_pipe, orig_timeout);
686 if (!NT_STATUS_IS_OK(result)) {
687 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
689 talloc_destroy(mem_ctx);
693 if (!W_ERROR_IS_OK(werr)) {
694 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
696 talloc_destroy(mem_ctx);
700 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
701 p = strip_hostname(tmp);
705 talloc_destroy(mem_ctx);
707 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
709 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
717 * Helper function to assemble trust password and account name
719 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
720 char **machine_password,
721 char **machine_account,
722 char **machine_krb5_principal)
724 const char *account_name;
725 const char *name = NULL;
727 /* If we are a DC and this is not our own domain */
732 struct winbindd_domain *our_domain = find_our_domain();
735 return NT_STATUS_INVALID_SERVER_STATE;
737 name = our_domain->name;
740 if (!get_trust_pw_clear(name, machine_password,
741 &account_name, NULL))
743 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
746 if ((machine_account != NULL) &&
747 (asprintf(machine_account, "%s$", account_name) == -1))
749 return NT_STATUS_NO_MEMORY;
752 /* For now assume our machine account only exists in our domain */
754 if (machine_krb5_principal != NULL)
756 struct winbindd_domain *our_domain = find_our_domain();
759 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
762 if (asprintf(machine_krb5_principal, "%s$@%s",
763 account_name, our_domain->alt_name) == -1)
765 return NT_STATUS_NO_MEMORY;
768 strupper_m(*machine_krb5_principal);
774 /************************************************************************
775 Given a fd with a just-connected TCP connection to a DC, open a connection
777 ************************************************************************/
779 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
781 const char *controller,
782 struct cli_state **cli,
785 char *machine_password = NULL;
786 char *machine_krb5_principal = NULL;
787 char *machine_account = NULL;
788 char *ipc_username = NULL;
789 char *ipc_domain = NULL;
790 char *ipc_password = NULL;
792 uint16_t sec_mode = 0;
794 struct named_mutex *mutex;
796 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
798 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
799 controller, domain->name ));
803 mutex = grab_named_mutex(talloc_tos(), controller,
804 WINBIND_SERVER_MUTEX_WAIT_TIME);
807 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
809 result = NT_STATUS_POSSIBLE_DEADLOCK;
813 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
815 *cli = cli_state_create(NULL, sockfd,
816 controller, domain->alt_name,
817 SMB_SIGNING_DEFAULT, flags);
820 DEBUG(1, ("Could not cli_initialize\n"));
821 result = NT_STATUS_NO_MEMORY;
825 cli_set_timeout(*cli, 10000); /* 10 seconds */
827 result = cli_negprot(*cli, PROTOCOL_NT1);
829 if (!NT_STATUS_IS_OK(result)) {
830 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
834 if (!is_dc_trusted_domain_situation(domain->name) &&
835 cli_state_protocol(*cli) >= PROTOCOL_NT1 &&
836 cli_state_capabilities(*cli) & CAP_EXTENDED_SECURITY)
838 result = get_trust_creds(domain, &machine_password,
840 &machine_krb5_principal);
841 if (!NT_STATUS_IS_OK(result)) {
845 if (lp_security() == SEC_ADS) {
847 /* Try a krb5 session */
849 (*cli)->use_kerberos = True;
850 DEBUG(5, ("connecting to %s from %s with kerberos principal "
851 "[%s] and realm [%s]\n", controller, lp_netbios_name(),
852 machine_krb5_principal, domain->alt_name));
854 winbindd_set_locator_kdc_envs(domain);
856 result = cli_session_setup(*cli,
857 machine_krb5_principal,
859 strlen(machine_password)+1,
861 strlen(machine_password)+1,
864 if (!NT_STATUS_IS_OK(result)) {
865 DEBUG(4,("failed kerberos session setup with %s\n",
869 if (NT_STATUS_IS_OK(result)) {
870 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
871 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
872 if (!NT_STATUS_IS_OK(result)) {
875 goto session_setup_done;
879 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
880 (*cli)->use_kerberos = False;
882 DEBUG(5, ("connecting to %s from %s with username "
883 "[%s]\\[%s]\n", controller, lp_netbios_name(),
884 lp_workgroup(), machine_account));
886 result = cli_session_setup(*cli,
889 strlen(machine_password)+1,
891 strlen(machine_password)+1,
893 if (!NT_STATUS_IS_OK(result)) {
894 DEBUG(4, ("authenticated session setup failed with %s\n",
898 if (NT_STATUS_IS_OK(result)) {
899 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
900 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
901 if (!NT_STATUS_IS_OK(result)) {
904 goto session_setup_done;
908 /* Fall back to non-kerberos session setup with auth_user */
910 (*cli)->use_kerberos = False;
912 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
914 sec_mode = cli_state_security_mode(*cli);
915 if (((sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
916 (strlen(ipc_username) > 0)) {
918 /* Only try authenticated if we have a username */
920 DEBUG(5, ("connecting to %s from %s with username "
921 "[%s]\\[%s]\n", controller, lp_netbios_name(),
922 ipc_domain, ipc_username));
924 if (NT_STATUS_IS_OK(cli_session_setup(
926 ipc_password, strlen(ipc_password)+1,
927 ipc_password, strlen(ipc_password)+1,
929 /* Successful logon with given username. */
930 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
931 if (!NT_STATUS_IS_OK(result)) {
934 goto session_setup_done;
936 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
937 ipc_domain, ipc_username ));
943 /* Fall back to anonymous connection, this might fail later */
944 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
945 "connection for DC %s\n",
948 result = cli_session_setup(*cli, "", NULL, 0, NULL, 0, "");
949 if (NT_STATUS_IS_OK(result)) {
950 DEBUG(5, ("Connected anonymously\n"));
951 result = cli_init_creds(*cli, "", "", "");
952 if (!NT_STATUS_IS_OK(result)) {
955 goto session_setup_done;
958 /* We can't session setup */
963 /* cache the server name for later connections */
965 saf_store(domain->name, controller);
966 if (domain->alt_name && (*cli)->use_kerberos) {
967 saf_store(domain->alt_name, controller);
970 winbindd_set_locator_kdc_envs(domain);
972 result = cli_tree_connect(*cli, "IPC$", "IPC", "", 0);
974 if (!NT_STATUS_IS_OK(result)) {
975 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
982 /* set the domain if empty; needed for schannel connections */
983 if ( !(*cli)->domain[0] ) {
984 result = cli_set_domain((*cli), domain->name);
985 if (!NT_STATUS_IS_OK(result)) {
990 result = NT_STATUS_OK;
994 SAFE_FREE(machine_account);
995 SAFE_FREE(machine_password);
996 SAFE_FREE(machine_krb5_principal);
997 SAFE_FREE(ipc_username);
998 SAFE_FREE(ipc_domain);
999 SAFE_FREE(ipc_password);
1001 if (!NT_STATUS_IS_OK(result)) {
1002 winbind_add_failed_connection_entry(domain, controller, result);
1003 if ((*cli) != NULL) {
1012 /*******************************************************************
1013 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1016 Keeps the list unique by not adding duplicate entries.
1018 @param[in] mem_ctx talloc memory context to allocate from
1019 @param[in] domain_name domain of the DC
1020 @param[in] dcname name of the DC to add to the list
1021 @param[in] pss Internet address and port pair to add to the list
1022 @param[in,out] dcs array of dc_name_ip structures to add to
1023 @param[in,out] num_dcs number of dcs returned in the dcs array
1024 @return true if the list was added to, false otherwise
1025 *******************************************************************/
1027 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1028 const char *dcname, struct sockaddr_storage *pss,
1029 struct dc_name_ip **dcs, int *num)
1033 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1034 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1038 /* Make sure there's no duplicates in the list */
1039 for (i=0; i<*num; i++)
1041 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1042 (struct sockaddr *)(void *)pss))
1045 *dcs = talloc_realloc(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1050 fstrcpy((*dcs)[*num].name, dcname);
1051 (*dcs)[*num].ss = *pss;
1056 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1057 struct sockaddr_storage *pss, uint16 port,
1058 struct sockaddr_storage **addrs, int *num)
1060 *addrs = talloc_realloc(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1062 if (*addrs == NULL) {
1067 (*addrs)[*num] = *pss;
1068 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1074 /*******************************************************************
1075 convert an ip to a name
1076 *******************************************************************/
1078 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1079 const struct winbindd_domain *domain,
1080 struct sockaddr_storage *pss,
1083 struct ip_service ip_list;
1084 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1086 const char *dc_name;
1092 /* For active directory servers, try to get the ldap server name.
1093 None of these failures should be considered critical for now */
1095 if (lp_security() == SEC_ADS) {
1097 ADS_STATUS ads_status;
1098 char addr[INET6_ADDRSTRLEN];
1100 print_sockaddr(addr, sizeof(addr), pss);
1102 ads = ads_init(domain->alt_name, domain->name, addr);
1103 ads->auth.flags |= ADS_AUTH_NO_BIND;
1105 ads_status = ads_connect(ads);
1106 if (ADS_ERR_OK(ads_status)) {
1107 /* We got a cldap packet. */
1108 fstrcpy(name, ads->config.ldap_server_name);
1109 namecache_store(name, 0x20, 1, &ip_list);
1111 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1113 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1114 if (ads_closest_dc(ads)) {
1115 char *sitename = sitename_fetch(ads->config.realm);
1117 /* We're going to use this KDC for this realm/domain.
1118 If we are using sites, then force the krb5 libs
1121 create_local_private_krb5_conf_for_domain(domain->alt_name,
1127 SAFE_FREE(sitename);
1129 /* use an off site KDC */
1130 create_local_private_krb5_conf_for_domain(domain->alt_name,
1136 winbindd_set_locator_kdc_envs(domain);
1138 /* Ensure we contact this DC also. */
1139 saf_store( domain->name, name);
1140 saf_store( domain->alt_name, name);
1143 ads_destroy( &ads );
1147 ads_destroy( &ads );
1151 status = nbt_getdc(winbind_messaging_context(), pss, domain->name,
1152 &domain->sid, nt_version, mem_ctx, &nt_version,
1154 if (NT_STATUS_IS_OK(status)) {
1155 fstrcpy(name, dc_name);
1156 namecache_store(name, 0x20, 1, &ip_list);
1160 /* try node status request */
1162 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1163 namecache_store(name, 0x20, 1, &ip_list);
1169 /*******************************************************************
1170 Retrieve a list of IP addresses for domain controllers.
1172 The array is sorted in the preferred connection order.
1174 @param[in] mem_ctx talloc memory context to allocate from
1175 @param[in] domain domain to retrieve DCs for
1176 @param[out] dcs array of dcs that will be returned
1177 @param[out] num_dcs number of dcs returned in the dcs array
1179 *******************************************************************/
1181 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1182 struct dc_name_ip **dcs, int *num_dcs)
1185 struct sockaddr_storage ss;
1186 struct ip_service *ip_list = NULL;
1187 int iplist_size = 0;
1190 enum security_types sec = (enum security_types)lp_security();
1192 is_our_domain = strequal(domain->name, lp_workgroup());
1194 /* If not our domain, get the preferred DC, by asking our primary DC */
1196 && get_dc_name_via_netlogon(domain, dcname, &ss)
1197 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1200 char addr[INET6_ADDRSTRLEN];
1201 print_sockaddr(addr, sizeof(addr), &ss);
1202 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1207 if (sec == SEC_ADS) {
1208 char *sitename = NULL;
1210 /* We need to make sure we know the local site before
1211 doing any DNS queries, as this will restrict the
1212 get_sorted_dc_list() call below to only fetching
1213 DNS records for the correct site. */
1215 /* Find any DC to get the site record.
1216 We deliberately don't care about the
1219 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1221 sitename = sitename_fetch(domain->alt_name);
1224 /* Do the site-specific AD dns lookup first. */
1225 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1226 &iplist_size, True);
1228 /* Add ips to the DC array. We don't look up the name
1229 of the DC in this function, but we fill in the char*
1230 of the ip now to make the failed connection cache
1232 for ( i=0; i<iplist_size; i++ ) {
1233 char addr[INET6_ADDRSTRLEN];
1234 print_sockaddr(addr, sizeof(addr),
1236 add_one_dc_unique(mem_ctx,
1245 SAFE_FREE(sitename);
1249 /* Now we add DCs from the main AD DNS lookup. */
1250 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1251 &iplist_size, True);
1253 for ( i=0; i<iplist_size; i++ ) {
1254 char addr[INET6_ADDRSTRLEN];
1255 print_sockaddr(addr, sizeof(addr),
1257 add_one_dc_unique(mem_ctx,
1269 /* Try standard netbios queries if no ADS */
1270 if (*num_dcs == 0) {
1271 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1274 for ( i=0; i<iplist_size; i++ ) {
1275 char addr[INET6_ADDRSTRLEN];
1276 print_sockaddr(addr, sizeof(addr),
1278 add_one_dc_unique(mem_ctx,
1293 /*******************************************************************
1294 Find and make a connection to a DC in the given domain.
1296 @param[in] mem_ctx talloc memory context to allocate from
1297 @param[in] domain domain to find a dc in
1298 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1299 @param[out] pss DC Internet address and port
1300 @param[out] fd fd of the open socket connected to the newly found dc
1301 @return true when a DC connection is made, false otherwise
1302 *******************************************************************/
1304 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1305 struct winbindd_domain *domain,
1306 fstring dcname, struct sockaddr_storage *pss, int *fd)
1308 struct dc_name_ip *dcs = NULL;
1311 const char **dcnames = NULL;
1312 int num_dcnames = 0;
1314 struct sockaddr_storage *addrs = NULL;
1325 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1328 for (i=0; i<num_dcs; i++) {
1330 if (!add_string_to_array(mem_ctx, dcs[i].name,
1331 &dcnames, &num_dcnames)) {
1334 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1335 &addrs, &num_addrs)) {
1340 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1343 if ((addrs == NULL) || (dcnames == NULL))
1346 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1347 num_addrs, 0, 10, fd, &fd_index, NULL);
1348 if (!NT_STATUS_IS_OK(status)) {
1349 for (i=0; i<num_dcs; i++) {
1350 char ab[INET6_ADDRSTRLEN];
1351 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1352 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1353 "domain %s address %s. Error was %s\n",
1354 domain->name, ab, nt_errstr(status) ));
1355 winbind_add_failed_connection_entry(domain,
1356 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1361 *pss = addrs[fd_index];
1363 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1364 /* Ok, we've got a name for the DC */
1365 fstrcpy(dcname, dcnames[fd_index]);
1369 /* Try to figure out the name */
1370 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1374 /* We can not continue without the DC's name */
1375 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1376 NT_STATUS_UNSUCCESSFUL);
1378 /* Throw away all arrays as we're doing this again. */
1382 TALLOC_FREE(dcnames);
1394 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1396 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1400 static void store_current_dc_in_gencache(const char *domain_name,
1401 const char *dc_name,
1402 struct cli_state *cli)
1404 char addr[INET6_ADDRSTRLEN];
1408 if (!cli_state_is_connected(cli)) {
1412 print_sockaddr(addr, sizeof(addr),
1413 cli_state_remote_sockaddr(cli));
1415 key = current_dc_key(talloc_tos(), domain_name);
1420 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1421 if (value == NULL) {
1425 gencache_set(key, value, 0x7fffffff);
1431 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1432 const char *domain_name,
1433 char **p_dc_name, char **p_dc_ip)
1435 char *key, *value, *p;
1437 char *dc_name = NULL;
1440 key = current_dc_key(talloc_tos(), domain_name);
1444 if (!gencache_get(key, &value, NULL)) {
1447 p = strchr(value, ' ');
1451 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1452 if (dc_ip == NULL) {
1455 dc_name = talloc_strdup(mem_ctx, p+1);
1456 if (dc_name == NULL) {
1460 if (p_dc_ip != NULL) {
1464 if (p_dc_name != NULL) {
1465 *p_dc_name = dc_name;
1470 TALLOC_FREE(dc_name);
1476 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1477 struct winbindd_cm_conn *new_conn)
1479 TALLOC_CTX *mem_ctx;
1481 char *saf_servername = saf_fetch( domain->name );
1484 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1485 SAFE_FREE(saf_servername);
1486 set_domain_offline(domain);
1487 return NT_STATUS_NO_MEMORY;
1490 /* we have to check the server affinity cache here since
1491 later we select a DC based on response time and not preference */
1493 /* Check the negative connection cache
1494 before talking to it. It going down may have
1495 triggered the reconnection. */
1497 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1499 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1500 saf_servername, domain->name ));
1502 /* convert an ip address to a name */
1503 if (is_ipaddress( saf_servername ) ) {
1505 struct sockaddr_storage ss;
1507 if (!interpret_string_addr(&ss, saf_servername,
1509 return NT_STATUS_UNSUCCESSFUL;
1511 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1512 strlcpy(domain->dcname, saf_name, sizeof(domain->dcname));
1514 winbind_add_failed_connection_entry(
1515 domain, saf_servername,
1516 NT_STATUS_UNSUCCESSFUL);
1519 fstrcpy( domain->dcname, saf_servername );
1522 SAFE_FREE( saf_servername );
1525 for (retries = 0; retries < 3; retries++) {
1529 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1531 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1532 domain->dcname, domain->name ));
1535 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1536 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1540 status = smbsock_connect(&domain->dcaddr, 0,
1543 if (!NT_STATUS_IS_OK(status)) {
1549 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1551 /* This is the one place where we will
1552 set the global winbindd offline state
1553 to true, if a "WINBINDD_OFFLINE" entry
1554 is found in the winbindd cache. */
1555 set_global_winbindd_state_offline();
1559 new_conn->cli = NULL;
1561 result = cm_prepare_connection(domain, fd, domain->dcname,
1562 &new_conn->cli, &retry);
1568 if (NT_STATUS_IS_OK(result)) {
1570 winbindd_set_locator_kdc_envs(domain);
1572 if (domain->online == False) {
1573 /* We're changing state from offline to online. */
1574 set_global_winbindd_state_online();
1576 set_domain_online(domain);
1579 * Much as I hate global state, this seems to be the point
1580 * where we can be certain that we have a proper connection to
1581 * a DC. wbinfo --dc-info needs that information, store it in
1582 * gencache with a looong timeout. This will need revisiting
1583 * once we start to connect to multiple DCs, wbcDcInfo is
1584 * already prepared for that.
1586 store_current_dc_in_gencache(domain->name, domain->dcname,
1589 /* Ensure we setup the retry handler. */
1590 set_domain_offline(domain);
1593 talloc_destroy(mem_ctx);
1597 /* Close down all open pipes on a connection. */
1599 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1603 /* We're closing down a possibly dead
1604 connection. Don't have impossibly long (10s) timeouts. */
1607 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1610 if (conn->samr_pipe != NULL) {
1611 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1612 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1614 &conn->sam_connect_handle,
1617 TALLOC_FREE(conn->samr_pipe);
1618 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1620 cli_set_timeout(conn->cli, 500);
1624 if (conn->lsa_pipe != NULL) {
1625 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1626 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1631 TALLOC_FREE(conn->lsa_pipe);
1632 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1634 cli_set_timeout(conn->cli, 500);
1638 if (conn->lsa_pipe_tcp != NULL) {
1639 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1640 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1645 TALLOC_FREE(conn->lsa_pipe_tcp);
1646 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1648 cli_set_timeout(conn->cli, 500);
1652 if (conn->netlogon_pipe != NULL) {
1653 TALLOC_FREE(conn->netlogon_pipe);
1654 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1656 cli_set_timeout(conn->cli, 500);
1661 cli_shutdown(conn->cli);
1667 void close_conns_after_fork(void)
1669 struct winbindd_domain *domain;
1670 struct winbindd_cli_state *cli_state;
1672 for (domain = domain_list(); domain; domain = domain->next) {
1674 * first close the low level SMB TCP connection
1675 * so that we don't generate any SMBclose
1676 * requests in invalidate_cm_connection()
1678 if (cli_state_is_connected(domain->conn.cli)) {
1679 cli_state_disconnect(domain->conn.cli);
1682 invalidate_cm_connection(&domain->conn);
1685 for (cli_state = winbindd_client_list();
1687 cli_state = cli_state->next) {
1688 if (cli_state->sock >= 0) {
1689 close(cli_state->sock);
1690 cli_state->sock = -1;
1695 static bool connection_ok(struct winbindd_domain *domain)
1699 ok = cli_state_is_connected(domain->conn.cli);
1701 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1702 domain->dcname, domain->name));
1706 if (domain->online == False) {
1707 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1714 /* Initialize a new connection up to the RPC BIND.
1715 Bypass online status check so always does network calls. */
1717 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1721 /* Internal connections never use the network. */
1722 if (domain->internal) {
1723 domain->initialized = True;
1724 return NT_STATUS_OK;
1727 if (!winbindd_can_contact_domain(domain)) {
1728 invalidate_cm_connection(&domain->conn);
1729 domain->initialized = True;
1730 return NT_STATUS_OK;
1733 if (connection_ok(domain)) {
1734 if (!domain->initialized) {
1735 set_dc_type_and_flags(domain);
1737 return NT_STATUS_OK;
1740 invalidate_cm_connection(&domain->conn);
1742 result = cm_open_connection(domain, &domain->conn);
1744 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1745 set_dc_type_and_flags(domain);
1751 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1753 if (domain->internal) {
1754 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1757 if (domain->initialized && !domain->online) {
1758 /* We check for online status elsewhere. */
1759 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1762 return init_dc_connection_network(domain);
1765 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1769 status = init_dc_connection(domain);
1770 if (!NT_STATUS_IS_OK(status)) {
1774 if (!domain->internal && domain->conn.cli == NULL) {
1775 /* happens for trusted domains without inbound trust */
1776 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1779 return NT_STATUS_OK;
1782 /******************************************************************************
1783 Set the trust flags (direction and forest location) for a domain
1784 ******************************************************************************/
1786 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1788 struct winbindd_domain *our_domain;
1789 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1791 struct netr_DomainTrustList trusts;
1793 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1794 NETR_TRUST_FLAG_OUTBOUND |
1795 NETR_TRUST_FLAG_INBOUND);
1796 struct rpc_pipe_client *cli;
1797 TALLOC_CTX *mem_ctx = NULL;
1798 struct dcerpc_binding_handle *b;
1800 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1802 /* Our primary domain doesn't need to worry about trust flags.
1803 Force it to go through the network setup */
1804 if ( domain->primary ) {
1808 our_domain = find_our_domain();
1810 if ( !connection_ok(our_domain) ) {
1811 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1815 /* This won't work unless our domain is AD */
1817 if ( !our_domain->active_directory ) {
1821 /* Use DsEnumerateDomainTrusts to get us the trust direction
1824 result = cm_connect_netlogon(our_domain, &cli);
1826 if (!NT_STATUS_IS_OK(result)) {
1827 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1828 "a connection to %s for PIPE_NETLOGON (%s)\n",
1829 domain->name, nt_errstr(result)));
1833 b = cli->binding_handle;
1835 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1836 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1840 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1845 if (!NT_STATUS_IS_OK(result)) {
1846 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1847 "failed to query trusted domain list: %s\n",
1848 nt_errstr(result)));
1849 talloc_destroy(mem_ctx);
1852 if (!W_ERROR_IS_OK(werr)) {
1853 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1854 "failed to query trusted domain list: %s\n",
1856 talloc_destroy(mem_ctx);
1860 /* Now find the domain name and get the flags */
1862 for ( i=0; i<trusts.count; i++ ) {
1863 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1864 domain->domain_flags = trusts.array[i].trust_flags;
1865 domain->domain_type = trusts.array[i].trust_type;
1866 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1868 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1869 domain->active_directory = True;
1871 /* This flag is only set if the domain is *our*
1872 primary domain and the primary domain is in
1875 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1877 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1878 "native mode.\n", domain->name,
1879 domain->native_mode ? "" : "NOT "));
1881 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1882 "running active directory.\n", domain->name,
1883 domain->active_directory ? "" : "NOT "));
1886 domain->initialized = True;
1892 talloc_destroy( mem_ctx );
1894 return domain->initialized;
1897 /******************************************************************************
1898 We can 'sense' certain things about the DC by it's replies to certain
1901 This tells us if this particular remote server is Active Directory, and if it
1903 ******************************************************************************/
1905 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1907 NTSTATUS status, result;
1909 TALLOC_CTX *mem_ctx = NULL;
1910 struct rpc_pipe_client *cli = NULL;
1911 struct policy_handle pol;
1912 union dssetup_DsRoleInfo info;
1913 union lsa_PolicyInformation *lsa_info = NULL;
1915 if (!connection_ok(domain)) {
1919 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1922 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1926 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1928 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1929 &ndr_table_dssetup.syntax_id,
1932 if (!NT_STATUS_IS_OK(status)) {
1933 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1934 "PI_DSSETUP on domain %s: (%s)\n",
1935 domain->name, nt_errstr(status)));
1937 /* if this is just a non-AD domain we need to continue
1938 * identifying so that we can in the end return with
1939 * domain->initialized = True - gd */
1944 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1945 DS_ROLE_BASIC_INFORMATION,
1950 if (NT_STATUS_IS_OK(status)) {
1951 result = werror_to_ntstatus(werr);
1953 if (!NT_STATUS_IS_OK(status)) {
1954 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1955 "on domain %s failed: (%s)\n",
1956 domain->name, nt_errstr(status)));
1958 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1959 * every opcode on the DSSETUP pipe, continue with
1960 * no_dssetup mode here as well to get domain->initialized
1963 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
1967 TALLOC_FREE(mem_ctx);
1971 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1972 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1973 domain->native_mode = True;
1975 domain->native_mode = False;
1979 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1980 &ndr_table_lsarpc.syntax_id, &cli);
1982 if (!NT_STATUS_IS_OK(status)) {
1983 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1984 "PI_LSARPC on domain %s: (%s)\n",
1985 domain->name, nt_errstr(status)));
1987 TALLOC_FREE(mem_ctx);
1991 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
1992 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
1994 if (NT_STATUS_IS_OK(status)) {
1995 /* This particular query is exactly what Win2k clients use
1996 to determine that the DC is active directory */
1997 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
1999 LSA_POLICY_INFO_DNS,
2004 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2005 domain->active_directory = True;
2007 if (lsa_info->dns.name.string) {
2008 fstrcpy(domain->name, lsa_info->dns.name.string);
2011 if (lsa_info->dns.dns_domain.string) {
2012 fstrcpy(domain->alt_name,
2013 lsa_info->dns.dns_domain.string);
2016 /* See if we can set some domain trust flags about
2019 if (lsa_info->dns.dns_forest.string) {
2020 fstrcpy(domain->forest_name,
2021 lsa_info->dns.dns_forest.string);
2023 if (strequal(domain->forest_name, domain->alt_name)) {
2024 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2028 if (lsa_info->dns.sid) {
2029 sid_copy(&domain->sid, lsa_info->dns.sid);
2032 domain->active_directory = False;
2034 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2035 SEC_FLAG_MAXIMUM_ALLOWED,
2038 if (!NT_STATUS_IS_OK(status)) {
2042 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2044 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2047 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2049 if (lsa_info->account_domain.name.string) {
2050 fstrcpy(domain->name,
2051 lsa_info->account_domain.name.string);
2054 if (lsa_info->account_domain.sid) {
2055 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2061 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2062 domain->name, domain->native_mode ? "" : "NOT "));
2064 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2065 domain->name, domain->active_directory ? "" : "NOT "));
2067 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2068 domain->can_do_validation6 = domain->active_directory;
2072 TALLOC_FREE(mem_ctx);
2074 domain->initialized = True;
2077 /**********************************************************************
2078 Set the domain_flags (trust attributes, domain operating modes, etc...
2079 ***********************************************************************/
2081 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2083 /* we always have to contact our primary domain */
2085 if ( domain->primary ) {
2086 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2087 "primary domain\n"));
2088 set_dc_type_and_flags_connect( domain );
2092 /* Use our DC to get the information if possible */
2094 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2095 /* Otherwise, fallback to contacting the
2097 set_dc_type_and_flags_connect( domain );
2105 /**********************************************************************
2106 ***********************************************************************/
2108 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2109 struct netlogon_creds_CredentialState **ppdc)
2111 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2112 struct rpc_pipe_client *netlogon_pipe;
2114 if (lp_client_schannel() == False) {
2115 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2118 result = cm_connect_netlogon(domain, &netlogon_pipe);
2119 if (!NT_STATUS_IS_OK(result)) {
2123 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2126 if (!domain->conn.netlogon_pipe->dc) {
2127 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2130 *ppdc = domain->conn.netlogon_pipe->dc;
2131 return NT_STATUS_OK;
2134 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2135 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2137 struct winbindd_cm_conn *conn;
2138 NTSTATUS status, result;
2139 struct netlogon_creds_CredentialState *p_creds;
2140 char *machine_password = NULL;
2141 char *machine_account = NULL;
2142 char *domain_name = NULL;
2144 if (sid_check_is_domain(&domain->sid)) {
2145 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2148 status = init_dc_connection_rpc(domain);
2149 if (!NT_STATUS_IS_OK(status)) {
2153 conn = &domain->conn;
2155 if (rpccli_is_connected(conn->samr_pipe)) {
2159 TALLOC_FREE(conn->samr_pipe);
2162 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2163 * sign and sealed pipe using the machine account password by
2164 * preference. If we can't - try schannel, if that fails, try
2168 if ((conn->cli->user_name[0] == '\0') ||
2169 (conn->cli->domain[0] == '\0') ||
2170 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2172 status = get_trust_creds(domain, &machine_password,
2173 &machine_account, NULL);
2174 if (!NT_STATUS_IS_OK(status)) {
2175 DEBUG(10, ("cm_connect_sam: No no user available for "
2176 "domain %s, trying schannel\n", conn->cli->domain));
2179 domain_name = domain->name;
2181 machine_password = SMB_STRDUP(conn->cli->password);
2182 machine_account = SMB_STRDUP(conn->cli->user_name);
2183 domain_name = conn->cli->domain;
2186 if (!machine_password || !machine_account) {
2187 status = NT_STATUS_NO_MEMORY;
2191 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2192 authenticated SAMR pipe with sign & seal. */
2193 status = cli_rpc_pipe_open_spnego(conn->cli,
2194 &ndr_table_samr.syntax_id,
2197 DCERPC_AUTH_LEVEL_PRIVACY,
2198 cli_state_remote_name(conn->cli),
2204 if (!NT_STATUS_IS_OK(status)) {
2205 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2206 "pipe for domain %s using NTLMSSP "
2207 "authenticated pipe: user %s\\%s. Error was "
2208 "%s\n", domain->name, domain_name,
2209 machine_account, nt_errstr(status)));
2213 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2214 "domain %s using NTLMSSP authenticated "
2215 "pipe: user %s\\%s\n", domain->name,
2216 domain_name, machine_account));
2218 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2219 conn->samr_pipe->desthost,
2220 SEC_FLAG_MAXIMUM_ALLOWED,
2221 &conn->sam_connect_handle,
2223 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2226 if (NT_STATUS_IS_OK(status)) {
2230 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2231 "failed for domain %s, error was %s. Trying schannel\n",
2232 domain->name, nt_errstr(status) ));
2233 TALLOC_FREE(conn->samr_pipe);
2237 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2239 status = cm_get_schannel_creds(domain, &p_creds);
2240 if (!NT_STATUS_IS_OK(status)) {
2241 /* If this call fails - conn->cli can now be NULL ! */
2242 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2243 "for domain %s (error %s), trying anon\n",
2245 nt_errstr(status) ));
2248 status = cli_rpc_pipe_open_schannel_with_key
2249 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2250 DCERPC_AUTH_LEVEL_PRIVACY,
2251 domain->name, &p_creds, &conn->samr_pipe);
2253 if (!NT_STATUS_IS_OK(status)) {
2254 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2255 "domain %s using schannel. Error was %s\n",
2256 domain->name, nt_errstr(status) ));
2259 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2260 "schannel.\n", domain->name ));
2262 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2263 conn->samr_pipe->desthost,
2264 SEC_FLAG_MAXIMUM_ALLOWED,
2265 &conn->sam_connect_handle,
2267 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2270 if (NT_STATUS_IS_OK(status)) {
2273 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2274 "for domain %s, error was %s. Trying anonymous\n",
2275 domain->name, nt_errstr(status) ));
2276 TALLOC_FREE(conn->samr_pipe);
2280 /* Finally fall back to anonymous. */
2281 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2284 if (!NT_STATUS_IS_OK(status)) {
2288 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2289 conn->samr_pipe->desthost,
2290 SEC_FLAG_MAXIMUM_ALLOWED,
2291 &conn->sam_connect_handle,
2293 if (!NT_STATUS_IS_OK(status)) {
2294 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2295 "for domain %s Error was %s\n",
2296 domain->name, nt_errstr(status) ));
2299 if (!NT_STATUS_IS_OK(result)) {
2301 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2302 "for domain %s Error was %s\n",
2303 domain->name, nt_errstr(result)));
2308 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2310 &conn->sam_connect_handle,
2311 SEC_FLAG_MAXIMUM_ALLOWED,
2313 &conn->sam_domain_handle,
2315 if (!NT_STATUS_IS_OK(status)) {
2322 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2324 * if we got access denied, we might just have no access rights
2325 * to talk to the remote samr server server (e.g. when we are a
2326 * PDC and we are connecting a w2k8 pdc via an interdomain
2327 * trust). In that case do not invalidate the whole connection
2330 TALLOC_FREE(conn->samr_pipe);
2331 ZERO_STRUCT(conn->sam_domain_handle);
2333 } else if (!NT_STATUS_IS_OK(status)) {
2334 invalidate_cm_connection(conn);
2338 *cli = conn->samr_pipe;
2339 *sam_handle = conn->sam_domain_handle;
2340 SAFE_FREE(machine_password);
2341 SAFE_FREE(machine_account);
2345 /**********************************************************************
2346 open an schanneld ncacn_ip_tcp connection to LSA
2347 ***********************************************************************/
2349 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2350 TALLOC_CTX *mem_ctx,
2351 struct rpc_pipe_client **cli)
2353 struct winbindd_cm_conn *conn;
2354 struct netlogon_creds_CredentialState *creds;
2357 DEBUG(10,("cm_connect_lsa_tcp\n"));
2359 status = init_dc_connection_rpc(domain);
2360 if (!NT_STATUS_IS_OK(status)) {
2364 conn = &domain->conn;
2366 if (conn->lsa_pipe_tcp &&
2367 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2368 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2369 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2373 TALLOC_FREE(conn->lsa_pipe_tcp);
2375 status = cm_get_schannel_creds(domain, &creds);
2376 if (!NT_STATUS_IS_OK(status)) {
2380 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2381 &ndr_table_lsarpc.syntax_id,
2383 DCERPC_AUTH_LEVEL_PRIVACY,
2386 &conn->lsa_pipe_tcp);
2387 if (!NT_STATUS_IS_OK(status)) {
2388 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2389 nt_errstr(status)));
2394 if (!NT_STATUS_IS_OK(status)) {
2395 TALLOC_FREE(conn->lsa_pipe_tcp);
2399 *cli = conn->lsa_pipe_tcp;
2404 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2405 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2407 struct winbindd_cm_conn *conn;
2408 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2409 struct netlogon_creds_CredentialState *p_creds;
2411 result = init_dc_connection_rpc(domain);
2412 if (!NT_STATUS_IS_OK(result))
2415 conn = &domain->conn;
2417 if (rpccli_is_connected(conn->lsa_pipe)) {
2421 TALLOC_FREE(conn->lsa_pipe);
2423 if ((conn->cli->user_name[0] == '\0') ||
2424 (conn->cli->domain[0] == '\0') ||
2425 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2426 DEBUG(10, ("cm_connect_lsa: No no user available for "
2427 "domain %s, trying schannel\n", conn->cli->domain));
2431 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2432 * authenticated LSA pipe with sign & seal. */
2433 result = cli_rpc_pipe_open_spnego
2434 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2436 DCERPC_AUTH_LEVEL_PRIVACY,
2437 cli_state_remote_name(conn->cli),
2438 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2441 if (!NT_STATUS_IS_OK(result)) {
2442 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2443 "domain %s using NTLMSSP authenticated pipe: user "
2444 "%s\\%s. Error was %s. Trying schannel.\n",
2445 domain->name, conn->cli->domain,
2446 conn->cli->user_name, nt_errstr(result)));
2450 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2451 "NTLMSSP authenticated pipe: user %s\\%s\n",
2452 domain->name, conn->cli->domain, conn->cli->user_name ));
2454 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2455 SEC_FLAG_MAXIMUM_ALLOWED,
2457 if (NT_STATUS_IS_OK(result)) {
2461 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2464 TALLOC_FREE(conn->lsa_pipe);
2468 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2470 result = cm_get_schannel_creds(domain, &p_creds);
2471 if (!NT_STATUS_IS_OK(result)) {
2472 /* If this call fails - conn->cli can now be NULL ! */
2473 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2474 "for domain %s (error %s), trying anon\n",
2476 nt_errstr(result) ));
2479 result = cli_rpc_pipe_open_schannel_with_key
2480 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2481 DCERPC_AUTH_LEVEL_PRIVACY,
2482 domain->name, &p_creds, &conn->lsa_pipe);
2484 if (!NT_STATUS_IS_OK(result)) {
2485 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2486 "domain %s using schannel. Error was %s\n",
2487 domain->name, nt_errstr(result) ));
2490 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2491 "schannel.\n", domain->name ));
2493 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2494 SEC_FLAG_MAXIMUM_ALLOWED,
2496 if (NT_STATUS_IS_OK(result)) {
2500 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2503 TALLOC_FREE(conn->lsa_pipe);
2507 result = cli_rpc_pipe_open_noauth(conn->cli,
2508 &ndr_table_lsarpc.syntax_id,
2510 if (!NT_STATUS_IS_OK(result)) {
2511 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2515 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2516 SEC_FLAG_MAXIMUM_ALLOWED,
2519 if (!NT_STATUS_IS_OK(result)) {
2520 invalidate_cm_connection(conn);
2524 *cli = conn->lsa_pipe;
2525 *lsa_policy = conn->lsa_policy;
2529 /****************************************************************************
2530 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2531 session key stored in conn->netlogon_pipe->dc->sess_key.
2532 ****************************************************************************/
2534 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2535 struct rpc_pipe_client **cli)
2537 struct winbindd_cm_conn *conn;
2540 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2542 enum netr_SchannelType sec_chan_type;
2543 const char *account_name;
2544 struct rpc_pipe_client *netlogon_pipe = NULL;
2548 result = init_dc_connection_rpc(domain);
2549 if (!NT_STATUS_IS_OK(result)) {
2553 conn = &domain->conn;
2555 if (rpccli_is_connected(conn->netlogon_pipe)) {
2556 *cli = conn->netlogon_pipe;
2557 return NT_STATUS_OK;
2560 TALLOC_FREE(conn->netlogon_pipe);
2562 result = cli_rpc_pipe_open_noauth(conn->cli,
2563 &ndr_table_netlogon.syntax_id,
2565 if (!NT_STATUS_IS_OK(result)) {
2569 if ((!IS_DC) && (!domain->primary)) {
2570 /* Clear the schannel request bit and drop down */
2571 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2575 if (lp_client_schannel() != False) {
2576 neg_flags |= NETLOGON_NEG_SCHANNEL;
2579 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2582 TALLOC_FREE(netlogon_pipe);
2583 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2586 result = rpccli_netlogon_setup_creds(
2588 domain->dcname, /* server name. */
2589 domain->name, /* domain name */
2590 lp_netbios_name(), /* client name */
2591 account_name, /* machine account */
2592 mach_pwd, /* machine password */
2593 sec_chan_type, /* from get_trust_pw */
2596 if (!NT_STATUS_IS_OK(result)) {
2597 TALLOC_FREE(netlogon_pipe);
2601 if ((lp_client_schannel() == True) &&
2602 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2603 DEBUG(3, ("Server did not offer schannel\n"));
2604 TALLOC_FREE(netlogon_pipe);
2605 return NT_STATUS_ACCESS_DENIED;
2609 if ((lp_client_schannel() == False) ||
2610 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2612 * NetSamLogonEx only works for schannel
2614 domain->can_do_samlogon_ex = False;
2616 /* We're done - just keep the existing connection to NETLOGON
2618 conn->netlogon_pipe = netlogon_pipe;
2619 *cli = conn->netlogon_pipe;
2620 return NT_STATUS_OK;
2623 /* Using the credentials from the first pipe, open a signed and sealed
2624 second netlogon pipe. The session key is stored in the schannel
2625 part of the new pipe auth struct.
2628 result = cli_rpc_pipe_open_schannel_with_key(
2629 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2630 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2631 &conn->netlogon_pipe);
2633 /* We can now close the initial netlogon pipe. */
2634 TALLOC_FREE(netlogon_pipe);
2636 if (!NT_STATUS_IS_OK(result)) {
2637 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2638 "was %s\n", nt_errstr(result)));
2640 invalidate_cm_connection(conn);
2645 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2646 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2647 * supported). We used to only try SamLogonEx for AD, but
2648 * Samba DCs can also do it. And because we don't distinguish
2649 * between Samba and NT4, always try it once.
2651 domain->can_do_samlogon_ex = true;
2653 *cli = conn->netlogon_pipe;
2654 return NT_STATUS_OK;
2657 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2660 struct server_id server_id,
2663 struct winbindd_domain *domain;
2664 char *freeit = NULL;
2668 || (data->data == NULL)
2669 || (data->length == 0)
2670 || (data->data[data->length-1] != '\0')) {
2671 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2676 addr = (char *)data->data;
2677 DEBUG(10, ("IP %s dropped\n", addr));
2679 if (!is_ipaddress(addr)) {
2682 * Some code sends us ip addresses with the /netmask
2685 slash = strchr(addr, '/');
2686 if (slash == NULL) {
2687 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2691 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2692 if (freeit == NULL) {
2693 DEBUG(1, ("talloc failed\n"));
2697 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2700 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2701 char sockaddr[INET6_ADDRSTRLEN];
2703 if (!cli_state_is_connected(domain->conn.cli)) {
2707 print_sockaddr(sockaddr, sizeof(sockaddr),
2708 cli_state_local_sockaddr(domain->conn.cli));
2710 if (strequal(sockaddr, addr)) {
2711 cli_state_disconnect(domain->conn.cli);
2714 TALLOC_FREE(freeit);