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 = 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 = 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 bool try_spnego = false;
786 bool try_ipc_auth = false;
787 char *machine_password = NULL;
788 char *machine_krb5_principal = NULL;
789 char *machine_account = NULL;
790 char *ipc_username = NULL;
791 char *ipc_domain = NULL;
792 char *ipc_password = NULL;
794 uint16_t sec_mode = 0;
796 struct named_mutex *mutex;
798 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
800 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
801 controller, domain->name ));
805 mutex = grab_named_mutex(talloc_tos(), controller,
806 WINBIND_SERVER_MUTEX_WAIT_TIME);
809 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
811 result = NT_STATUS_POSSIBLE_DEADLOCK;
815 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
817 *cli = cli_state_create(NULL, sockfd,
818 controller, domain->alt_name,
819 SMB_SIGNING_DEFAULT, flags);
822 DEBUG(1, ("Could not cli_initialize\n"));
823 result = NT_STATUS_NO_MEMORY;
827 cli_set_timeout(*cli, 10000); /* 10 seconds */
829 result = cli_negprot(*cli, PROTOCOL_SMB2_02);
831 if (!NT_STATUS_IS_OK(result)) {
832 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
836 if (cli_state_protocol(*cli) >= PROTOCOL_NT1 &&
837 cli_state_capabilities(*cli) & CAP_EXTENDED_SECURITY) {
839 } else if (cli_state_protocol(*cli) >= PROTOCOL_SMB2_02) {
843 if (!is_dc_trusted_domain_situation(domain->name) && try_spnego) {
844 result = get_trust_creds(domain, &machine_password,
846 &machine_krb5_principal);
847 if (!NT_STATUS_IS_OK(result)) {
851 if (lp_security() == SEC_ADS) {
853 /* Try a krb5 session */
855 (*cli)->use_kerberos = True;
856 DEBUG(5, ("connecting to %s from %s with kerberos principal "
857 "[%s] and realm [%s]\n", controller, lp_netbios_name(),
858 machine_krb5_principal, domain->alt_name));
860 winbindd_set_locator_kdc_envs(domain);
862 result = cli_session_setup(*cli,
863 machine_krb5_principal,
865 strlen(machine_password)+1,
867 strlen(machine_password)+1,
870 if (!NT_STATUS_IS_OK(result)) {
871 DEBUG(4,("failed kerberos session setup with %s\n",
875 if (NT_STATUS_IS_OK(result)) {
876 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
877 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
878 if (!NT_STATUS_IS_OK(result)) {
881 goto session_setup_done;
885 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
886 (*cli)->use_kerberos = False;
888 DEBUG(5, ("connecting to %s from %s with username "
889 "[%s]\\[%s]\n", controller, lp_netbios_name(),
890 lp_workgroup(), machine_account));
892 result = cli_session_setup(*cli,
895 strlen(machine_password)+1,
897 strlen(machine_password)+1,
899 if (!NT_STATUS_IS_OK(result)) {
900 DEBUG(4, ("authenticated session setup failed with %s\n",
904 if (NT_STATUS_IS_OK(result)) {
905 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
906 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
907 if (!NT_STATUS_IS_OK(result)) {
910 goto session_setup_done;
914 /* Fall back to non-kerberos session setup with auth_user */
916 (*cli)->use_kerberos = False;
918 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
920 sec_mode = cli_state_security_mode(*cli);
922 try_ipc_auth = false;
925 } else if (sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
929 if (try_ipc_auth && (strlen(ipc_username) > 0)) {
931 /* Only try authenticated if we have a username */
933 DEBUG(5, ("connecting to %s from %s with username "
934 "[%s]\\[%s]\n", controller, lp_netbios_name(),
935 ipc_domain, ipc_username));
937 if (NT_STATUS_IS_OK(cli_session_setup(
939 ipc_password, strlen(ipc_password)+1,
940 ipc_password, strlen(ipc_password)+1,
942 /* Successful logon with given username. */
943 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
944 if (!NT_STATUS_IS_OK(result)) {
947 goto session_setup_done;
949 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
950 ipc_domain, ipc_username ));
956 /* Fall back to anonymous connection, this might fail later */
957 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
958 "connection for DC %s\n",
961 result = cli_session_setup(*cli, "", NULL, 0, NULL, 0, "");
962 if (NT_STATUS_IS_OK(result)) {
963 DEBUG(5, ("Connected anonymously\n"));
964 result = cli_init_creds(*cli, "", "", "");
965 if (!NT_STATUS_IS_OK(result)) {
968 goto session_setup_done;
971 /* We can't session setup */
976 /* cache the server name for later connections */
978 saf_store(domain->name, controller);
979 if (domain->alt_name && (*cli)->use_kerberos) {
980 saf_store(domain->alt_name, controller);
983 winbindd_set_locator_kdc_envs(domain);
985 result = cli_tree_connect(*cli, "IPC$", "IPC", "", 0);
987 if (!NT_STATUS_IS_OK(result)) {
988 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
995 /* set the domain if empty; needed for schannel connections */
996 if ( !(*cli)->domain[0] ) {
997 result = cli_set_domain((*cli), domain->name);
998 if (!NT_STATUS_IS_OK(result)) {
1003 result = NT_STATUS_OK;
1007 SAFE_FREE(machine_account);
1008 SAFE_FREE(machine_password);
1009 SAFE_FREE(machine_krb5_principal);
1010 SAFE_FREE(ipc_username);
1011 SAFE_FREE(ipc_domain);
1012 SAFE_FREE(ipc_password);
1014 if (!NT_STATUS_IS_OK(result)) {
1015 winbind_add_failed_connection_entry(domain, controller, result);
1016 if ((*cli) != NULL) {
1025 /*******************************************************************
1026 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1029 Keeps the list unique by not adding duplicate entries.
1031 @param[in] mem_ctx talloc memory context to allocate from
1032 @param[in] domain_name domain of the DC
1033 @param[in] dcname name of the DC to add to the list
1034 @param[in] pss Internet address and port pair to add to the list
1035 @param[in,out] dcs array of dc_name_ip structures to add to
1036 @param[in,out] num_dcs number of dcs returned in the dcs array
1037 @return true if the list was added to, false otherwise
1038 *******************************************************************/
1040 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1041 const char *dcname, struct sockaddr_storage *pss,
1042 struct dc_name_ip **dcs, int *num)
1046 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1047 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1051 /* Make sure there's no duplicates in the list */
1052 for (i=0; i<*num; i++)
1054 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1055 (struct sockaddr *)(void *)pss))
1058 *dcs = talloc_realloc(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1063 fstrcpy((*dcs)[*num].name, dcname);
1064 (*dcs)[*num].ss = *pss;
1069 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1070 struct sockaddr_storage *pss, uint16 port,
1071 struct sockaddr_storage **addrs, int *num)
1073 *addrs = talloc_realloc(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1075 if (*addrs == NULL) {
1080 (*addrs)[*num] = *pss;
1081 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1087 /*******************************************************************
1088 convert an ip to a name
1089 *******************************************************************/
1091 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1092 const struct winbindd_domain *domain,
1093 struct sockaddr_storage *pss,
1096 struct ip_service ip_list;
1097 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1099 const char *dc_name;
1105 /* For active directory servers, try to get the ldap server name.
1106 None of these failures should be considered critical for now */
1108 if (lp_security() == SEC_ADS) {
1110 ADS_STATUS ads_status;
1111 char addr[INET6_ADDRSTRLEN];
1113 print_sockaddr(addr, sizeof(addr), pss);
1115 ads = ads_init(domain->alt_name, domain->name, addr);
1116 ads->auth.flags |= ADS_AUTH_NO_BIND;
1118 ads_status = ads_connect(ads);
1119 if (ADS_ERR_OK(ads_status)) {
1120 /* We got a cldap packet. */
1121 fstrcpy(name, ads->config.ldap_server_name);
1122 namecache_store(name, 0x20, 1, &ip_list);
1124 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1126 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1127 if (ads_closest_dc(ads)) {
1128 char *sitename = sitename_fetch(ads->config.realm);
1130 /* We're going to use this KDC for this realm/domain.
1131 If we are using sites, then force the krb5 libs
1134 create_local_private_krb5_conf_for_domain(domain->alt_name,
1140 SAFE_FREE(sitename);
1142 /* use an off site KDC */
1143 create_local_private_krb5_conf_for_domain(domain->alt_name,
1149 winbindd_set_locator_kdc_envs(domain);
1151 /* Ensure we contact this DC also. */
1152 saf_store( domain->name, name);
1153 saf_store( domain->alt_name, name);
1156 ads_destroy( &ads );
1160 ads_destroy( &ads );
1164 status = nbt_getdc(winbind_messaging_context(), pss, domain->name,
1165 &domain->sid, nt_version, mem_ctx, &nt_version,
1167 if (NT_STATUS_IS_OK(status)) {
1168 fstrcpy(name, dc_name);
1169 namecache_store(name, 0x20, 1, &ip_list);
1173 /* try node status request */
1175 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1176 namecache_store(name, 0x20, 1, &ip_list);
1182 /*******************************************************************
1183 Retrieve a list of IP addresses for domain controllers.
1185 The array is sorted in the preferred connection order.
1187 @param[in] mem_ctx talloc memory context to allocate from
1188 @param[in] domain domain to retrieve DCs for
1189 @param[out] dcs array of dcs that will be returned
1190 @param[out] num_dcs number of dcs returned in the dcs array
1192 *******************************************************************/
1194 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1195 struct dc_name_ip **dcs, int *num_dcs)
1198 struct sockaddr_storage ss;
1199 struct ip_service *ip_list = NULL;
1200 int iplist_size = 0;
1203 enum security_types sec = (enum security_types)lp_security();
1205 is_our_domain = strequal(domain->name, lp_workgroup());
1207 /* If not our domain, get the preferred DC, by asking our primary DC */
1209 && get_dc_name_via_netlogon(domain, dcname, &ss)
1210 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1213 char addr[INET6_ADDRSTRLEN];
1214 print_sockaddr(addr, sizeof(addr), &ss);
1215 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1220 if (sec == SEC_ADS) {
1221 char *sitename = NULL;
1223 /* We need to make sure we know the local site before
1224 doing any DNS queries, as this will restrict the
1225 get_sorted_dc_list() call below to only fetching
1226 DNS records for the correct site. */
1228 /* Find any DC to get the site record.
1229 We deliberately don't care about the
1232 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1234 sitename = sitename_fetch(domain->alt_name);
1237 /* Do the site-specific AD dns lookup first. */
1238 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1239 &iplist_size, True);
1241 /* Add ips to the DC array. We don't look up the name
1242 of the DC in this function, but we fill in the char*
1243 of the ip now to make the failed connection cache
1245 for ( i=0; i<iplist_size; i++ ) {
1246 char addr[INET6_ADDRSTRLEN];
1247 print_sockaddr(addr, sizeof(addr),
1249 add_one_dc_unique(mem_ctx,
1258 SAFE_FREE(sitename);
1262 /* Now we add DCs from the main AD DNS lookup. */
1263 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1264 &iplist_size, True);
1266 for ( i=0; i<iplist_size; i++ ) {
1267 char addr[INET6_ADDRSTRLEN];
1268 print_sockaddr(addr, sizeof(addr),
1270 add_one_dc_unique(mem_ctx,
1282 /* Try standard netbios queries if no ADS */
1283 if (*num_dcs == 0) {
1284 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1287 for ( i=0; i<iplist_size; i++ ) {
1288 char addr[INET6_ADDRSTRLEN];
1289 print_sockaddr(addr, sizeof(addr),
1291 add_one_dc_unique(mem_ctx,
1306 /*******************************************************************
1307 Find and make a connection to a DC in the given domain.
1309 @param[in] mem_ctx talloc memory context to allocate from
1310 @param[in] domain domain to find a dc in
1311 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1312 @param[out] pss DC Internet address and port
1313 @param[out] fd fd of the open socket connected to the newly found dc
1314 @return true when a DC connection is made, false otherwise
1315 *******************************************************************/
1317 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1318 struct winbindd_domain *domain,
1319 fstring dcname, struct sockaddr_storage *pss, int *fd)
1321 struct dc_name_ip *dcs = NULL;
1324 const char **dcnames = NULL;
1325 int num_dcnames = 0;
1327 struct sockaddr_storage *addrs = NULL;
1338 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1341 for (i=0; i<num_dcs; i++) {
1343 if (!add_string_to_array(mem_ctx, dcs[i].name,
1344 &dcnames, &num_dcnames)) {
1347 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, TCP_SMB_PORT,
1348 &addrs, &num_addrs)) {
1353 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1356 if ((addrs == NULL) || (dcnames == NULL))
1359 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1360 num_addrs, 0, 10, fd, &fd_index, NULL);
1361 if (!NT_STATUS_IS_OK(status)) {
1362 for (i=0; i<num_dcs; i++) {
1363 char ab[INET6_ADDRSTRLEN];
1364 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1365 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1366 "domain %s address %s. Error was %s\n",
1367 domain->name, ab, nt_errstr(status) ));
1368 winbind_add_failed_connection_entry(domain,
1369 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1374 *pss = addrs[fd_index];
1376 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1377 /* Ok, we've got a name for the DC */
1378 fstrcpy(dcname, dcnames[fd_index]);
1382 /* Try to figure out the name */
1383 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1387 /* We can not continue without the DC's name */
1388 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1389 NT_STATUS_UNSUCCESSFUL);
1391 /* Throw away all arrays as we're doing this again. */
1395 TALLOC_FREE(dcnames);
1407 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1409 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1413 static void store_current_dc_in_gencache(const char *domain_name,
1414 const char *dc_name,
1415 struct cli_state *cli)
1417 char addr[INET6_ADDRSTRLEN];
1421 if (!cli_state_is_connected(cli)) {
1425 print_sockaddr(addr, sizeof(addr),
1426 cli_state_remote_sockaddr(cli));
1428 key = current_dc_key(talloc_tos(), domain_name);
1433 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1434 if (value == NULL) {
1438 gencache_set(key, value, 0x7fffffff);
1444 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1445 const char *domain_name,
1446 char **p_dc_name, char **p_dc_ip)
1448 char *key, *value, *p;
1450 char *dc_name = NULL;
1453 key = current_dc_key(talloc_tos(), domain_name);
1457 if (!gencache_get(key, &value, NULL)) {
1460 p = strchr(value, ' ');
1464 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1465 if (dc_ip == NULL) {
1468 dc_name = talloc_strdup(mem_ctx, p+1);
1469 if (dc_name == NULL) {
1473 if (p_dc_ip != NULL) {
1477 if (p_dc_name != NULL) {
1478 *p_dc_name = dc_name;
1483 TALLOC_FREE(dc_name);
1489 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1490 struct winbindd_cm_conn *new_conn)
1492 TALLOC_CTX *mem_ctx;
1494 char *saf_servername = saf_fetch( domain->name );
1497 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1498 SAFE_FREE(saf_servername);
1499 set_domain_offline(domain);
1500 return NT_STATUS_NO_MEMORY;
1503 /* we have to check the server affinity cache here since
1504 later we select a DC based on response time and not preference */
1506 /* Check the negative connection cache
1507 before talking to it. It going down may have
1508 triggered the reconnection. */
1510 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1512 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1513 saf_servername, domain->name ));
1515 /* convert an ip address to a name */
1516 if (is_ipaddress( saf_servername ) ) {
1518 struct sockaddr_storage ss;
1520 if (!interpret_string_addr(&ss, saf_servername,
1522 return NT_STATUS_UNSUCCESSFUL;
1524 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1525 strlcpy(domain->dcname, saf_name, sizeof(domain->dcname));
1527 winbind_add_failed_connection_entry(
1528 domain, saf_servername,
1529 NT_STATUS_UNSUCCESSFUL);
1532 fstrcpy( domain->dcname, saf_servername );
1535 SAFE_FREE( saf_servername );
1538 for (retries = 0; retries < 3; retries++) {
1542 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1544 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1545 domain->dcname, domain->name ));
1548 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1549 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1553 status = smbsock_connect(&domain->dcaddr, 0,
1556 if (!NT_STATUS_IS_OK(status)) {
1562 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1564 /* This is the one place where we will
1565 set the global winbindd offline state
1566 to true, if a "WINBINDD_OFFLINE" entry
1567 is found in the winbindd cache. */
1568 set_global_winbindd_state_offline();
1572 new_conn->cli = NULL;
1574 result = cm_prepare_connection(domain, fd, domain->dcname,
1575 &new_conn->cli, &retry);
1581 if (NT_STATUS_IS_OK(result)) {
1583 winbindd_set_locator_kdc_envs(domain);
1585 if (domain->online == False) {
1586 /* We're changing state from offline to online. */
1587 set_global_winbindd_state_online();
1589 set_domain_online(domain);
1592 * Much as I hate global state, this seems to be the point
1593 * where we can be certain that we have a proper connection to
1594 * a DC. wbinfo --dc-info needs that information, store it in
1595 * gencache with a looong timeout. This will need revisiting
1596 * once we start to connect to multiple DCs, wbcDcInfo is
1597 * already prepared for that.
1599 store_current_dc_in_gencache(domain->name, domain->dcname,
1602 /* Ensure we setup the retry handler. */
1603 set_domain_offline(domain);
1606 talloc_destroy(mem_ctx);
1610 /* Close down all open pipes on a connection. */
1612 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1616 /* We're closing down a possibly dead
1617 connection. Don't have impossibly long (10s) timeouts. */
1620 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1623 if (conn->samr_pipe != NULL) {
1624 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1625 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1627 &conn->sam_connect_handle,
1630 TALLOC_FREE(conn->samr_pipe);
1631 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1633 cli_set_timeout(conn->cli, 500);
1637 if (conn->lsa_pipe != NULL) {
1638 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1639 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1644 TALLOC_FREE(conn->lsa_pipe);
1645 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1647 cli_set_timeout(conn->cli, 500);
1651 if (conn->lsa_pipe_tcp != NULL) {
1652 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1653 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1658 TALLOC_FREE(conn->lsa_pipe_tcp);
1659 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1661 cli_set_timeout(conn->cli, 500);
1665 if (conn->netlogon_pipe != NULL) {
1666 TALLOC_FREE(conn->netlogon_pipe);
1667 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1669 cli_set_timeout(conn->cli, 500);
1674 cli_shutdown(conn->cli);
1680 void close_conns_after_fork(void)
1682 struct winbindd_domain *domain;
1683 struct winbindd_cli_state *cli_state;
1685 for (domain = domain_list(); domain; domain = domain->next) {
1687 * first close the low level SMB TCP connection
1688 * so that we don't generate any SMBclose
1689 * requests in invalidate_cm_connection()
1691 if (cli_state_is_connected(domain->conn.cli)) {
1692 cli_state_disconnect(domain->conn.cli);
1695 invalidate_cm_connection(&domain->conn);
1698 for (cli_state = winbindd_client_list();
1700 cli_state = cli_state->next) {
1701 if (cli_state->sock >= 0) {
1702 close(cli_state->sock);
1703 cli_state->sock = -1;
1708 static bool connection_ok(struct winbindd_domain *domain)
1712 ok = cli_state_is_connected(domain->conn.cli);
1714 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1715 domain->dcname, domain->name));
1719 if (domain->online == False) {
1720 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1727 /* Initialize a new connection up to the RPC BIND.
1728 Bypass online status check so always does network calls. */
1730 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1734 /* Internal connections never use the network. */
1735 if (domain->internal) {
1736 domain->initialized = True;
1737 return NT_STATUS_OK;
1740 if (!winbindd_can_contact_domain(domain)) {
1741 invalidate_cm_connection(&domain->conn);
1742 domain->initialized = True;
1743 return NT_STATUS_OK;
1746 if (connection_ok(domain)) {
1747 if (!domain->initialized) {
1748 set_dc_type_and_flags(domain);
1750 return NT_STATUS_OK;
1753 invalidate_cm_connection(&domain->conn);
1755 result = cm_open_connection(domain, &domain->conn);
1757 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1758 set_dc_type_and_flags(domain);
1764 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1766 if (domain->internal) {
1767 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1770 if (domain->initialized && !domain->online) {
1771 /* We check for online status elsewhere. */
1772 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1775 return init_dc_connection_network(domain);
1778 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1782 status = init_dc_connection(domain);
1783 if (!NT_STATUS_IS_OK(status)) {
1787 if (!domain->internal && domain->conn.cli == NULL) {
1788 /* happens for trusted domains without inbound trust */
1789 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1792 return NT_STATUS_OK;
1795 /******************************************************************************
1796 Set the trust flags (direction and forest location) for a domain
1797 ******************************************************************************/
1799 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1801 struct winbindd_domain *our_domain;
1802 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1804 struct netr_DomainTrustList trusts;
1806 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1807 NETR_TRUST_FLAG_OUTBOUND |
1808 NETR_TRUST_FLAG_INBOUND);
1809 struct rpc_pipe_client *cli;
1810 TALLOC_CTX *mem_ctx = NULL;
1811 struct dcerpc_binding_handle *b;
1813 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1815 /* Our primary domain doesn't need to worry about trust flags.
1816 Force it to go through the network setup */
1817 if ( domain->primary ) {
1821 our_domain = find_our_domain();
1823 if ( !connection_ok(our_domain) ) {
1824 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1828 /* This won't work unless our domain is AD */
1830 if ( !our_domain->active_directory ) {
1834 /* Use DsEnumerateDomainTrusts to get us the trust direction
1837 result = cm_connect_netlogon(our_domain, &cli);
1839 if (!NT_STATUS_IS_OK(result)) {
1840 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1841 "a connection to %s for PIPE_NETLOGON (%s)\n",
1842 domain->name, nt_errstr(result)));
1846 b = cli->binding_handle;
1848 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1849 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1853 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1858 if (!NT_STATUS_IS_OK(result)) {
1859 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1860 "failed to query trusted domain list: %s\n",
1861 nt_errstr(result)));
1862 talloc_destroy(mem_ctx);
1865 if (!W_ERROR_IS_OK(werr)) {
1866 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1867 "failed to query trusted domain list: %s\n",
1869 talloc_destroy(mem_ctx);
1873 /* Now find the domain name and get the flags */
1875 for ( i=0; i<trusts.count; i++ ) {
1876 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1877 domain->domain_flags = trusts.array[i].trust_flags;
1878 domain->domain_type = trusts.array[i].trust_type;
1879 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1881 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1882 domain->active_directory = True;
1884 /* This flag is only set if the domain is *our*
1885 primary domain and the primary domain is in
1888 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1890 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1891 "native mode.\n", domain->name,
1892 domain->native_mode ? "" : "NOT "));
1894 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1895 "running active directory.\n", domain->name,
1896 domain->active_directory ? "" : "NOT "));
1898 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1899 domain->can_do_validation6 = domain->active_directory;
1901 domain->initialized = True;
1907 talloc_destroy( mem_ctx );
1909 return domain->initialized;
1912 /******************************************************************************
1913 We can 'sense' certain things about the DC by it's replies to certain
1916 This tells us if this particular remote server is Active Directory, and if it
1918 ******************************************************************************/
1920 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1922 NTSTATUS status, result;
1924 TALLOC_CTX *mem_ctx = NULL;
1925 struct rpc_pipe_client *cli = NULL;
1926 struct policy_handle pol;
1927 union dssetup_DsRoleInfo info;
1928 union lsa_PolicyInformation *lsa_info = NULL;
1930 if (!connection_ok(domain)) {
1934 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1937 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1941 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1943 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1944 &ndr_table_dssetup.syntax_id,
1947 if (!NT_STATUS_IS_OK(status)) {
1948 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1949 "PI_DSSETUP on domain %s: (%s)\n",
1950 domain->name, nt_errstr(status)));
1952 /* if this is just a non-AD domain we need to continue
1953 * identifying so that we can in the end return with
1954 * domain->initialized = True - gd */
1959 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1960 DS_ROLE_BASIC_INFORMATION,
1965 if (NT_STATUS_IS_OK(status)) {
1966 result = werror_to_ntstatus(werr);
1968 if (!NT_STATUS_IS_OK(status)) {
1969 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1970 "on domain %s failed: (%s)\n",
1971 domain->name, nt_errstr(status)));
1973 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1974 * every opcode on the DSSETUP pipe, continue with
1975 * no_dssetup mode here as well to get domain->initialized
1978 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
1982 TALLOC_FREE(mem_ctx);
1986 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1987 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1988 domain->native_mode = True;
1990 domain->native_mode = False;
1994 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1995 &ndr_table_lsarpc.syntax_id, &cli);
1997 if (!NT_STATUS_IS_OK(status)) {
1998 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1999 "PI_LSARPC on domain %s: (%s)\n",
2000 domain->name, nt_errstr(status)));
2002 TALLOC_FREE(mem_ctx);
2006 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
2007 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
2009 if (NT_STATUS_IS_OK(status)) {
2010 /* This particular query is exactly what Win2k clients use
2011 to determine that the DC is active directory */
2012 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
2014 LSA_POLICY_INFO_DNS,
2019 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2020 domain->active_directory = True;
2022 if (lsa_info->dns.name.string) {
2023 fstrcpy(domain->name, lsa_info->dns.name.string);
2026 if (lsa_info->dns.dns_domain.string) {
2027 fstrcpy(domain->alt_name,
2028 lsa_info->dns.dns_domain.string);
2031 /* See if we can set some domain trust flags about
2034 if (lsa_info->dns.dns_forest.string) {
2035 fstrcpy(domain->forest_name,
2036 lsa_info->dns.dns_forest.string);
2038 if (strequal(domain->forest_name, domain->alt_name)) {
2039 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2043 if (lsa_info->dns.sid) {
2044 sid_copy(&domain->sid, lsa_info->dns.sid);
2047 domain->active_directory = False;
2049 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2050 SEC_FLAG_MAXIMUM_ALLOWED,
2053 if (!NT_STATUS_IS_OK(status)) {
2057 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2059 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2062 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2064 if (lsa_info->account_domain.name.string) {
2065 fstrcpy(domain->name,
2066 lsa_info->account_domain.name.string);
2069 if (lsa_info->account_domain.sid) {
2070 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2076 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2077 domain->name, domain->native_mode ? "" : "NOT "));
2079 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2080 domain->name, domain->active_directory ? "" : "NOT "));
2082 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2083 domain->can_do_validation6 = domain->active_directory;
2087 TALLOC_FREE(mem_ctx);
2089 domain->initialized = True;
2092 /**********************************************************************
2093 Set the domain_flags (trust attributes, domain operating modes, etc...
2094 ***********************************************************************/
2096 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2098 /* we always have to contact our primary domain */
2100 if ( domain->primary ) {
2101 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2102 "primary domain\n"));
2103 set_dc_type_and_flags_connect( domain );
2107 /* Use our DC to get the information if possible */
2109 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2110 /* Otherwise, fallback to contacting the
2112 set_dc_type_and_flags_connect( domain );
2120 /**********************************************************************
2121 ***********************************************************************/
2123 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2124 struct netlogon_creds_CredentialState **ppdc)
2126 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2127 struct rpc_pipe_client *netlogon_pipe;
2129 if (lp_client_schannel() == False) {
2130 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2133 result = cm_connect_netlogon(domain, &netlogon_pipe);
2134 if (!NT_STATUS_IS_OK(result)) {
2138 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2141 if (!domain->conn.netlogon_pipe->dc) {
2142 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2145 *ppdc = domain->conn.netlogon_pipe->dc;
2146 return NT_STATUS_OK;
2149 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2150 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2152 struct winbindd_cm_conn *conn;
2153 NTSTATUS status, result;
2154 struct netlogon_creds_CredentialState *p_creds;
2155 char *machine_password = NULL;
2156 char *machine_account = NULL;
2157 char *domain_name = NULL;
2159 if (sid_check_is_domain(&domain->sid)) {
2160 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2163 status = init_dc_connection_rpc(domain);
2164 if (!NT_STATUS_IS_OK(status)) {
2168 conn = &domain->conn;
2170 if (rpccli_is_connected(conn->samr_pipe)) {
2174 TALLOC_FREE(conn->samr_pipe);
2177 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2178 * sign and sealed pipe using the machine account password by
2179 * preference. If we can't - try schannel, if that fails, try
2183 if ((conn->cli->user_name[0] == '\0') ||
2184 (conn->cli->domain[0] == '\0') ||
2185 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2187 status = get_trust_creds(domain, &machine_password,
2188 &machine_account, NULL);
2189 if (!NT_STATUS_IS_OK(status)) {
2190 DEBUG(10, ("cm_connect_sam: No no user available for "
2191 "domain %s, trying schannel\n", conn->cli->domain));
2194 domain_name = domain->name;
2196 machine_password = SMB_STRDUP(conn->cli->password);
2197 machine_account = SMB_STRDUP(conn->cli->user_name);
2198 domain_name = conn->cli->domain;
2201 if (!machine_password || !machine_account) {
2202 status = NT_STATUS_NO_MEMORY;
2206 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2207 authenticated SAMR pipe with sign & seal. */
2208 status = cli_rpc_pipe_open_spnego(conn->cli,
2212 DCERPC_AUTH_LEVEL_PRIVACY,
2213 cli_state_remote_name(conn->cli),
2219 if (!NT_STATUS_IS_OK(status)) {
2220 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2221 "pipe for domain %s using NTLMSSP "
2222 "authenticated pipe: user %s\\%s. Error was "
2223 "%s\n", domain->name, domain_name,
2224 machine_account, nt_errstr(status)));
2228 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2229 "domain %s using NTLMSSP authenticated "
2230 "pipe: user %s\\%s\n", domain->name,
2231 domain_name, machine_account));
2233 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2234 conn->samr_pipe->desthost,
2235 SEC_FLAG_MAXIMUM_ALLOWED,
2236 &conn->sam_connect_handle,
2238 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2241 if (NT_STATUS_IS_OK(status)) {
2245 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2246 "failed for domain %s, error was %s. Trying schannel\n",
2247 domain->name, nt_errstr(status) ));
2248 TALLOC_FREE(conn->samr_pipe);
2252 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2254 status = cm_get_schannel_creds(domain, &p_creds);
2255 if (!NT_STATUS_IS_OK(status)) {
2256 /* If this call fails - conn->cli can now be NULL ! */
2257 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2258 "for domain %s (error %s), trying anon\n",
2260 nt_errstr(status) ));
2263 status = cli_rpc_pipe_open_schannel_with_key
2264 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2265 DCERPC_AUTH_LEVEL_PRIVACY,
2266 domain->name, &p_creds, &conn->samr_pipe);
2268 if (!NT_STATUS_IS_OK(status)) {
2269 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2270 "domain %s using schannel. Error was %s\n",
2271 domain->name, nt_errstr(status) ));
2274 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2275 "schannel.\n", domain->name ));
2277 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2278 conn->samr_pipe->desthost,
2279 SEC_FLAG_MAXIMUM_ALLOWED,
2280 &conn->sam_connect_handle,
2282 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2285 if (NT_STATUS_IS_OK(status)) {
2288 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2289 "for domain %s, error was %s. Trying anonymous\n",
2290 domain->name, nt_errstr(status) ));
2291 TALLOC_FREE(conn->samr_pipe);
2295 /* Finally fall back to anonymous. */
2296 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2299 if (!NT_STATUS_IS_OK(status)) {
2303 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2304 conn->samr_pipe->desthost,
2305 SEC_FLAG_MAXIMUM_ALLOWED,
2306 &conn->sam_connect_handle,
2308 if (!NT_STATUS_IS_OK(status)) {
2309 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2310 "for domain %s Error was %s\n",
2311 domain->name, nt_errstr(status) ));
2314 if (!NT_STATUS_IS_OK(result)) {
2316 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2317 "for domain %s Error was %s\n",
2318 domain->name, nt_errstr(result)));
2323 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2325 &conn->sam_connect_handle,
2326 SEC_FLAG_MAXIMUM_ALLOWED,
2328 &conn->sam_domain_handle,
2330 if (!NT_STATUS_IS_OK(status)) {
2337 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2339 * if we got access denied, we might just have no access rights
2340 * to talk to the remote samr server server (e.g. when we are a
2341 * PDC and we are connecting a w2k8 pdc via an interdomain
2342 * trust). In that case do not invalidate the whole connection
2345 TALLOC_FREE(conn->samr_pipe);
2346 ZERO_STRUCT(conn->sam_domain_handle);
2348 } else if (!NT_STATUS_IS_OK(status)) {
2349 invalidate_cm_connection(conn);
2353 *cli = conn->samr_pipe;
2354 *sam_handle = conn->sam_domain_handle;
2355 SAFE_FREE(machine_password);
2356 SAFE_FREE(machine_account);
2360 /**********************************************************************
2361 open an schanneld ncacn_ip_tcp connection to LSA
2362 ***********************************************************************/
2364 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2365 TALLOC_CTX *mem_ctx,
2366 struct rpc_pipe_client **cli)
2368 struct winbindd_cm_conn *conn;
2369 struct netlogon_creds_CredentialState *creds;
2372 DEBUG(10,("cm_connect_lsa_tcp\n"));
2374 status = init_dc_connection_rpc(domain);
2375 if (!NT_STATUS_IS_OK(status)) {
2379 conn = &domain->conn;
2381 if (conn->lsa_pipe_tcp &&
2382 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2383 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2384 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2388 TALLOC_FREE(conn->lsa_pipe_tcp);
2390 status = cm_get_schannel_creds(domain, &creds);
2391 if (!NT_STATUS_IS_OK(status)) {
2395 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2396 &ndr_table_lsarpc.syntax_id,
2398 DCERPC_AUTH_LEVEL_PRIVACY,
2401 &conn->lsa_pipe_tcp);
2402 if (!NT_STATUS_IS_OK(status)) {
2403 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2404 nt_errstr(status)));
2409 if (!NT_STATUS_IS_OK(status)) {
2410 TALLOC_FREE(conn->lsa_pipe_tcp);
2414 *cli = conn->lsa_pipe_tcp;
2419 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2420 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2422 struct winbindd_cm_conn *conn;
2423 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2424 struct netlogon_creds_CredentialState *p_creds;
2426 result = init_dc_connection_rpc(domain);
2427 if (!NT_STATUS_IS_OK(result))
2430 conn = &domain->conn;
2432 if (rpccli_is_connected(conn->lsa_pipe)) {
2436 TALLOC_FREE(conn->lsa_pipe);
2438 if ((conn->cli->user_name[0] == '\0') ||
2439 (conn->cli->domain[0] == '\0') ||
2440 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2441 DEBUG(10, ("cm_connect_lsa: No no user available for "
2442 "domain %s, trying schannel\n", conn->cli->domain));
2446 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2447 * authenticated LSA pipe with sign & seal. */
2448 result = cli_rpc_pipe_open_spnego
2449 (conn->cli, &ndr_table_lsarpc, NCACN_NP,
2451 DCERPC_AUTH_LEVEL_PRIVACY,
2452 cli_state_remote_name(conn->cli),
2453 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2456 if (!NT_STATUS_IS_OK(result)) {
2457 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2458 "domain %s using NTLMSSP authenticated pipe: user "
2459 "%s\\%s. Error was %s. Trying schannel.\n",
2460 domain->name, conn->cli->domain,
2461 conn->cli->user_name, nt_errstr(result)));
2465 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2466 "NTLMSSP authenticated pipe: user %s\\%s\n",
2467 domain->name, conn->cli->domain, conn->cli->user_name ));
2469 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2470 SEC_FLAG_MAXIMUM_ALLOWED,
2472 if (NT_STATUS_IS_OK(result)) {
2476 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2479 TALLOC_FREE(conn->lsa_pipe);
2483 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2485 result = cm_get_schannel_creds(domain, &p_creds);
2486 if (!NT_STATUS_IS_OK(result)) {
2487 /* If this call fails - conn->cli can now be NULL ! */
2488 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2489 "for domain %s (error %s), trying anon\n",
2491 nt_errstr(result) ));
2494 result = cli_rpc_pipe_open_schannel_with_key
2495 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2496 DCERPC_AUTH_LEVEL_PRIVACY,
2497 domain->name, &p_creds, &conn->lsa_pipe);
2499 if (!NT_STATUS_IS_OK(result)) {
2500 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2501 "domain %s using schannel. Error was %s\n",
2502 domain->name, nt_errstr(result) ));
2505 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2506 "schannel.\n", domain->name ));
2508 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2509 SEC_FLAG_MAXIMUM_ALLOWED,
2511 if (NT_STATUS_IS_OK(result)) {
2515 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2518 TALLOC_FREE(conn->lsa_pipe);
2522 result = cli_rpc_pipe_open_noauth(conn->cli,
2523 &ndr_table_lsarpc.syntax_id,
2525 if (!NT_STATUS_IS_OK(result)) {
2526 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2530 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2531 SEC_FLAG_MAXIMUM_ALLOWED,
2534 if (!NT_STATUS_IS_OK(result)) {
2535 invalidate_cm_connection(conn);
2539 *cli = conn->lsa_pipe;
2540 *lsa_policy = conn->lsa_policy;
2544 /****************************************************************************
2545 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2546 session key stored in conn->netlogon_pipe->dc->sess_key.
2547 ****************************************************************************/
2549 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2550 struct rpc_pipe_client **cli)
2552 struct winbindd_cm_conn *conn;
2555 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
2557 enum netr_SchannelType sec_chan_type;
2558 const char *account_name;
2559 struct rpc_pipe_client *netlogon_pipe = NULL;
2563 result = init_dc_connection_rpc(domain);
2564 if (!NT_STATUS_IS_OK(result)) {
2568 conn = &domain->conn;
2570 if (rpccli_is_connected(conn->netlogon_pipe)) {
2571 *cli = conn->netlogon_pipe;
2572 return NT_STATUS_OK;
2575 TALLOC_FREE(conn->netlogon_pipe);
2577 result = cli_rpc_pipe_open_noauth(conn->cli,
2578 &ndr_table_netlogon.syntax_id,
2580 if (!NT_STATUS_IS_OK(result)) {
2584 if ((!IS_DC) && (!domain->primary)) {
2585 /* Clear the schannel request bit and drop down */
2586 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2590 if (lp_client_schannel() != False) {
2591 neg_flags |= NETLOGON_NEG_SCHANNEL;
2594 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2597 TALLOC_FREE(netlogon_pipe);
2598 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2601 result = rpccli_netlogon_setup_creds(
2603 domain->dcname, /* server name. */
2604 domain->name, /* domain name */
2605 lp_netbios_name(), /* client name */
2606 account_name, /* machine account */
2607 mach_pwd, /* machine password */
2608 sec_chan_type, /* from get_trust_pw */
2611 if (!NT_STATUS_IS_OK(result)) {
2612 TALLOC_FREE(netlogon_pipe);
2616 if ((lp_client_schannel() == True) &&
2617 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2618 DEBUG(3, ("Server did not offer schannel\n"));
2619 TALLOC_FREE(netlogon_pipe);
2620 return NT_STATUS_ACCESS_DENIED;
2624 if ((lp_client_schannel() == False) ||
2625 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2627 * NetSamLogonEx only works for schannel
2629 domain->can_do_samlogon_ex = False;
2631 /* We're done - just keep the existing connection to NETLOGON
2633 conn->netlogon_pipe = netlogon_pipe;
2634 *cli = conn->netlogon_pipe;
2635 return NT_STATUS_OK;
2638 /* Using the credentials from the first pipe, open a signed and sealed
2639 second netlogon pipe. The session key is stored in the schannel
2640 part of the new pipe auth struct.
2643 result = cli_rpc_pipe_open_schannel_with_key(
2644 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2645 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2646 &conn->netlogon_pipe);
2648 /* We can now close the initial netlogon pipe. */
2649 TALLOC_FREE(netlogon_pipe);
2651 if (!NT_STATUS_IS_OK(result)) {
2652 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2653 "was %s\n", nt_errstr(result)));
2655 invalidate_cm_connection(conn);
2660 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2661 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2662 * supported). We used to only try SamLogonEx for AD, but
2663 * Samba DCs can also do it. And because we don't distinguish
2664 * between Samba and NT4, always try it once.
2666 domain->can_do_samlogon_ex = true;
2668 *cli = conn->netlogon_pipe;
2669 return NT_STATUS_OK;
2672 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2675 struct server_id server_id,
2678 struct winbindd_domain *domain;
2679 char *freeit = NULL;
2683 || (data->data == NULL)
2684 || (data->length == 0)
2685 || (data->data[data->length-1] != '\0')) {
2686 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2691 addr = (char *)data->data;
2692 DEBUG(10, ("IP %s dropped\n", addr));
2694 if (!is_ipaddress(addr)) {
2697 * Some code sends us ip addresses with the /netmask
2700 slash = strchr(addr, '/');
2701 if (slash == NULL) {
2702 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2706 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2707 if (freeit == NULL) {
2708 DEBUG(1, ("talloc failed\n"));
2712 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2715 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2716 char sockaddr[INET6_ADDRSTRLEN];
2718 if (!cli_state_is_connected(domain->conn.cli)) {
2722 print_sockaddr(sockaddr, sizeof(sockaddr),
2723 cli_state_local_sockaddr(domain->conn.cli));
2725 if (strequal(sockaddr, addr)) {
2726 cli_state_disconnect(domain->conn.cli);
2729 TALLOC_FREE(freeit);