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"
80 #include "../libcli/smb/smbXcli_base.h"
81 #include "lib/param/loadparm.h"
84 #define DBGC_CLASS DBGC_WINBIND
88 struct sockaddr_storage ss;
91 extern struct winbindd_methods reconnect_methods;
92 extern bool override_logfile;
94 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
95 static void set_dc_type_and_flags( struct winbindd_domain *domain );
96 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
97 struct dc_name_ip **dcs, int *num_dcs);
99 /****************************************************************
100 Child failed to find DC's. Reschedule check.
101 ****************************************************************/
103 static void msg_failed_to_go_online(struct messaging_context *msg,
106 struct server_id server_id,
109 struct winbindd_domain *domain;
110 const char *domainname = (const char *)data->data;
112 if (data->data == NULL || data->length == 0) {
116 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
118 for (domain = domain_list(); domain; domain = domain->next) {
119 if (domain->internal) {
123 if (strequal(domain->name, domainname)) {
124 if (domain->online) {
125 /* We're already online, ignore. */
126 DEBUG(5,("msg_fail_to_go_online: domain %s "
127 "already online.\n", domainname));
131 /* Reschedule the online check. */
132 set_domain_offline(domain);
138 /****************************************************************
139 Actually cause a reconnect from a message.
140 ****************************************************************/
142 static void msg_try_to_go_online(struct messaging_context *msg,
145 struct server_id server_id,
148 struct winbindd_domain *domain;
149 const char *domainname = (const char *)data->data;
151 if (data->data == NULL || data->length == 0) {
155 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
157 for (domain = domain_list(); domain; domain = domain->next) {
158 if (domain->internal) {
162 if (strequal(domain->name, domainname)) {
164 if (domain->online) {
165 /* We're already online, ignore. */
166 DEBUG(5,("msg_try_to_go_online: domain %s "
167 "already online.\n", domainname));
171 /* This call takes care of setting the online
172 flag to true if we connected, or re-adding
173 the offline handler if false. Bypasses online
174 check so always does network calls. */
176 init_dc_connection_network(domain);
182 /****************************************************************
183 Fork a child to try and contact a DC. Do this as contacting a
184 DC requires blocking lookups and we don't want to block our
186 ****************************************************************/
188 static bool fork_child_dc_connect(struct winbindd_domain *domain)
190 struct dc_name_ip *dcs = NULL;
192 TALLOC_CTX *mem_ctx = NULL;
193 pid_t parent_pid = getpid();
197 if (domain->dc_probe_pid != (pid_t)-1) {
199 * We might already have a DC probe
200 * child working, check.
202 if (process_exists_by_pid(domain->dc_probe_pid)) {
203 DEBUG(10,("fork_child_dc_connect: pid %u already "
204 "checking for DC's.\n",
205 (unsigned int)domain->dc_probe_pid));
208 domain->dc_probe_pid = (pid_t)-1;
211 domain->dc_probe_pid = fork();
213 if (domain->dc_probe_pid == (pid_t)-1) {
214 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
218 if (domain->dc_probe_pid != (pid_t)0) {
220 messaging_register(winbind_messaging_context(), NULL,
221 MSG_WINBIND_TRY_TO_GO_ONLINE,
222 msg_try_to_go_online);
223 messaging_register(winbind_messaging_context(), NULL,
224 MSG_WINBIND_FAILED_TO_GO_ONLINE,
225 msg_failed_to_go_online);
231 /* Leave messages blocked - we will never process one. */
233 if (!override_logfile) {
234 if (asprintf(&lfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) == -1) {
235 DEBUG(0, ("fork_child_dc_connect: out of memory.\n"));
240 status = winbindd_reinit_after_fork(NULL, lfile);
241 if (!NT_STATUS_IS_OK(status)) {
242 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
244 messaging_send_buf(winbind_messaging_context(),
245 pid_to_procid(parent_pid),
246 MSG_WINBIND_FAILED_TO_GO_ONLINE,
247 (const uint8_t *)domain->name,
248 strlen(domain->name)+1);
253 mem_ctx = talloc_init("fork_child_dc_connect");
255 DEBUG(0,("talloc_init failed.\n"));
256 messaging_send_buf(winbind_messaging_context(),
257 pid_to_procid(parent_pid),
258 MSG_WINBIND_FAILED_TO_GO_ONLINE,
259 (const uint8_t *)domain->name,
260 strlen(domain->name)+1);
264 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
265 /* Still offline ? Can't find DC's. */
266 messaging_send_buf(winbind_messaging_context(),
267 pid_to_procid(parent_pid),
268 MSG_WINBIND_FAILED_TO_GO_ONLINE,
269 (const uint8_t *)domain->name,
270 strlen(domain->name)+1);
274 /* We got a DC. Send a message to our parent to get it to
275 try and do the same. */
277 messaging_send_buf(winbind_messaging_context(),
278 pid_to_procid(parent_pid),
279 MSG_WINBIND_TRY_TO_GO_ONLINE,
280 (const uint8_t *)domain->name,
281 strlen(domain->name)+1);
285 /****************************************************************
286 Handler triggered if we're offline to try and detect a DC.
287 ****************************************************************/
289 static void check_domain_online_handler(struct tevent_context *ctx,
290 struct tevent_timer *te,
294 struct winbindd_domain *domain =
295 (struct winbindd_domain *)private_data;
297 DEBUG(10,("check_domain_online_handler: called for domain "
298 "%s (online = %s)\n", domain->name,
299 domain->online ? "True" : "False" ));
301 TALLOC_FREE(domain->check_online_event);
303 /* Are we still in "startup" mode ? */
305 if (domain->startup && (time_mono(NULL) > domain->startup_time + 30)) {
306 /* No longer in "startup" mode. */
307 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
309 domain->startup = False;
312 /* We've been told to stay offline, so stay
315 if (get_global_winbindd_state_offline()) {
316 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
321 /* Fork a child to test if it can contact a DC.
322 If it can then send ourselves a message to
323 cause a reconnect. */
325 fork_child_dc_connect(domain);
328 /****************************************************************
329 If we're still offline setup the timeout check.
330 ****************************************************************/
332 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
334 int wbr = lp_winbind_reconnect_delay();
336 if (domain->startup) {
337 domain->check_online_timeout = 10;
338 } else if (domain->check_online_timeout < wbr) {
339 domain->check_online_timeout = wbr;
343 /****************************************************************
344 Set domain offline and also add handler to put us back online
346 ****************************************************************/
348 void set_domain_offline(struct winbindd_domain *domain)
350 DEBUG(10,("set_domain_offline: called for domain %s\n",
353 TALLOC_FREE(domain->check_online_event);
355 if (domain->internal) {
356 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
361 domain->online = False;
363 /* Offline domains are always initialized. They're
364 re-initialized when they go back online. */
366 domain->initialized = True;
368 /* We only add the timeout handler that checks and
369 allows us to go back online when we've not
370 been told to remain offline. */
372 if (get_global_winbindd_state_offline()) {
373 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
378 /* If we're in startup mode, check again in 10 seconds, not in
379 lp_winbind_reconnect_delay() seconds (which is 30 seconds by default). */
381 calc_new_online_timeout_check(domain);
383 domain->check_online_event = tevent_add_timer(winbind_event_context(),
385 timeval_current_ofs(domain->check_online_timeout,0),
386 check_domain_online_handler,
389 /* The above *has* to succeed for winbindd to work. */
390 if (!domain->check_online_event) {
391 smb_panic("set_domain_offline: failed to add online handler");
394 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
397 /* Send an offline message to the idmap child when our
398 primary domain goes offline */
400 if ( domain->primary ) {
401 struct winbindd_child *idmap = idmap_child();
403 if ( idmap->pid != 0 ) {
404 messaging_send_buf(winbind_messaging_context(),
405 pid_to_procid(idmap->pid),
407 (const uint8_t *)domain->name,
408 strlen(domain->name)+1);
415 /****************************************************************
416 Set domain online - if allowed.
417 ****************************************************************/
419 static void set_domain_online(struct winbindd_domain *domain)
421 DEBUG(10,("set_domain_online: called for domain %s\n",
424 if (domain->internal) {
425 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
430 if (get_global_winbindd_state_offline()) {
431 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
436 winbindd_set_locator_kdc_envs(domain);
438 /* If we are waiting to get a krb5 ticket, trigger immediately. */
439 ccache_regain_all_now();
441 /* Ok, we're out of any startup mode now... */
442 domain->startup = False;
444 if (domain->online == False) {
445 /* We were offline - now we're online. We default to
446 using the MS-RPC backend if we started offline,
447 and if we're going online for the first time we
448 should really re-initialize the backends and the
449 checks to see if we're talking to an AD or NT domain.
452 domain->initialized = False;
454 /* 'reconnect_methods' is the MS-RPC backend. */
455 if (domain->backend == &reconnect_methods) {
456 domain->backend = NULL;
460 /* Ensure we have no online timeout checks. */
461 domain->check_online_timeout = 0;
462 TALLOC_FREE(domain->check_online_event);
464 /* Ensure we ignore any pending child messages. */
465 messaging_deregister(winbind_messaging_context(),
466 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
467 messaging_deregister(winbind_messaging_context(),
468 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
470 domain->online = True;
472 /* Send an online message to the idmap child when our
473 primary domain comes online */
475 if ( domain->primary ) {
476 struct winbindd_child *idmap = idmap_child();
478 if ( idmap->pid != 0 ) {
479 messaging_send_buf(winbind_messaging_context(),
480 pid_to_procid(idmap->pid),
482 (const uint8_t *)domain->name,
483 strlen(domain->name)+1);
490 /****************************************************************
491 Requested to set a domain online.
492 ****************************************************************/
494 void set_domain_online_request(struct winbindd_domain *domain)
498 DEBUG(10,("set_domain_online_request: called for domain %s\n",
501 if (get_global_winbindd_state_offline()) {
502 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
507 if (domain->internal) {
508 DEBUG(10, ("set_domain_online_request: Internal domains are "
513 /* We've been told it's safe to go online and
514 try and connect to a DC. But I don't believe it
515 because network manager seems to lie.
516 Wait at least 5 seconds. Heuristics suck... */
521 /* Go into "startup" mode again. */
522 domain->startup_time = time_mono(NULL);
523 domain->startup = True;
527 if (!domain->check_online_event) {
528 /* If we've come from being globally offline we
529 don't have a check online event handler set.
530 We need to add one now we're trying to go
533 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
537 TALLOC_FREE(domain->check_online_event);
539 domain->check_online_event = tevent_add_timer(winbind_event_context(),
542 check_domain_online_handler,
545 /* The above *has* to succeed for winbindd to work. */
546 if (!domain->check_online_event) {
547 smb_panic("set_domain_online_request: failed to add online handler");
551 /****************************************************************
552 Add -ve connection cache entries for domain and realm.
553 ****************************************************************/
555 static void winbind_add_failed_connection_entry(
556 const struct winbindd_domain *domain,
560 add_failed_connection_entry(domain->name, server, result);
561 /* If this was the saf name for the last thing we talked to,
563 saf_delete(domain->name);
564 if (domain->alt_name != NULL) {
565 add_failed_connection_entry(domain->alt_name, server, result);
566 saf_delete(domain->alt_name);
568 winbindd_unset_locator_kdc_env(domain);
571 /* Choose between anonymous or authenticated connections. We need to use
572 an authenticated connection if DCs have the RestrictAnonymous registry
573 entry set > 0, or the "Additional restrictions for anonymous
574 connections" set in the win2k Local Security Policy.
576 Caller to free() result in domain, username, password
579 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
581 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
582 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
583 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
585 if (*username && **username) {
587 if (!*domain || !**domain)
588 *domain = smb_xstrdup(lp_workgroup());
590 if (!*password || !**password)
591 *password = smb_xstrdup("");
593 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
594 *domain, *username));
597 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
598 *username = smb_xstrdup("");
599 *domain = smb_xstrdup("");
600 *password = smb_xstrdup("");
604 static bool get_dc_name_via_netlogon(struct winbindd_domain *domain,
606 struct sockaddr_storage *dc_ss)
608 struct winbindd_domain *our_domain = NULL;
609 struct rpc_pipe_client *netlogon_pipe = NULL;
613 unsigned int orig_timeout;
614 const char *tmp = NULL;
616 struct dcerpc_binding_handle *b;
618 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
625 if (domain->primary) {
629 our_domain = find_our_domain();
631 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
635 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
636 if (!NT_STATUS_IS_OK(result)) {
637 talloc_destroy(mem_ctx);
641 b = netlogon_pipe->binding_handle;
643 /* This call can take a long time - allow the server to time out.
644 35 seconds should do it. */
646 orig_timeout = rpccli_set_timeout(netlogon_pipe, 35000);
648 if (our_domain->active_directory) {
649 struct netr_DsRGetDCNameInfo *domain_info = NULL;
651 result = dcerpc_netr_DsRGetDCName(b,
660 if (NT_STATUS_IS_OK(result) && W_ERROR_IS_OK(werr)) {
662 mem_ctx, domain_info->dc_unc);
664 DEBUG(0, ("talloc_strdup failed\n"));
665 talloc_destroy(mem_ctx);
668 if (domain->alt_name == NULL) {
669 domain->alt_name = talloc_strdup(domain,
670 domain_info->domain_name);
671 if (domain->alt_name == NULL) {
672 DEBUG(0, ("talloc_strdup failed\n"));
673 talloc_destroy(mem_ctx);
677 if (domain->forest_name == NULL) {
678 domain->forest_name = talloc_strdup(domain,
679 domain_info->forest_name);
680 if (domain->forest_name == NULL) {
681 DEBUG(0, ("talloc_strdup failed\n"));
682 talloc_destroy(mem_ctx);
688 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
695 /* And restore our original timeout. */
696 rpccli_set_timeout(netlogon_pipe, orig_timeout);
698 if (!NT_STATUS_IS_OK(result)) {
699 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
701 talloc_destroy(mem_ctx);
705 if (!W_ERROR_IS_OK(werr)) {
706 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
708 talloc_destroy(mem_ctx);
712 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
713 p = strip_hostname(tmp);
717 talloc_destroy(mem_ctx);
719 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
721 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
729 * Helper function to assemble trust password and account name
731 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
732 char **machine_password,
733 char **machine_account,
734 char **machine_krb5_principal)
736 const char *account_name;
737 const char *name = NULL;
739 /* If we are a DC and this is not our own domain */
744 struct winbindd_domain *our_domain = find_our_domain();
747 return NT_STATUS_INVALID_SERVER_STATE;
749 name = our_domain->name;
752 if (!get_trust_pw_clear(name, machine_password,
753 &account_name, NULL))
755 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
758 if ((machine_account != NULL) &&
759 (asprintf(machine_account, "%s$", account_name) == -1))
761 return NT_STATUS_NO_MEMORY;
764 /* For now assume our machine account only exists in our domain */
766 if (machine_krb5_principal != NULL)
768 struct winbindd_domain *our_domain = find_our_domain();
771 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
774 if (asprintf(machine_krb5_principal, "%s$@%s",
775 account_name, our_domain->alt_name) == -1)
777 return NT_STATUS_NO_MEMORY;
780 if (!strupper_m(*machine_krb5_principal)) {
781 SAFE_FREE(machine_krb5_principal);
782 return NT_STATUS_INVALID_PARAMETER;
789 /************************************************************************
790 Given a fd with a just-connected TCP connection to a DC, open a connection
792 ************************************************************************/
794 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
796 const char *controller,
797 struct cli_state **cli,
800 bool try_spnego = false;
801 bool try_ipc_auth = false;
802 char *machine_password = NULL;
803 char *machine_krb5_principal = NULL;
804 char *machine_account = NULL;
805 char *ipc_username = NULL;
806 char *ipc_domain = NULL;
807 char *ipc_password = NULL;
809 uint16_t sec_mode = 0;
811 struct named_mutex *mutex;
813 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
815 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
816 controller, domain->name ));
820 mutex = grab_named_mutex(talloc_tos(), controller,
821 WINBIND_SERVER_MUTEX_WAIT_TIME);
824 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
826 result = NT_STATUS_POSSIBLE_DEADLOCK;
830 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
832 *cli = cli_state_create(NULL, sockfd,
833 controller, domain->alt_name,
834 SMB_SIGNING_DEFAULT, flags);
837 DEBUG(1, ("Could not cli_initialize\n"));
838 result = NT_STATUS_NO_MEMORY;
842 cli_set_timeout(*cli, 10000); /* 10 seconds */
844 result = smbXcli_negprot((*cli)->conn, (*cli)->timeout, PROTOCOL_CORE,
847 if (!NT_STATUS_IS_OK(result)) {
848 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
852 if (smbXcli_conn_protocol((*cli)->conn) >= PROTOCOL_NT1 &&
853 smb1cli_conn_capabilities((*cli)->conn) & CAP_EXTENDED_SECURITY) {
855 } else if (smbXcli_conn_protocol((*cli)->conn) >= PROTOCOL_SMB2_02) {
859 if (!is_dc_trusted_domain_situation(domain->name) && try_spnego) {
860 result = get_trust_creds(domain, &machine_password,
862 &machine_krb5_principal);
863 if (!NT_STATUS_IS_OK(result)) {
867 if (lp_security() == SEC_ADS) {
869 /* Try a krb5 session */
871 (*cli)->use_kerberos = True;
872 DEBUG(5, ("connecting to %s from %s with kerberos principal "
873 "[%s] and realm [%s]\n", controller, lp_netbios_name(),
874 machine_krb5_principal, domain->alt_name));
876 winbindd_set_locator_kdc_envs(domain);
878 result = cli_session_setup(*cli,
879 machine_krb5_principal,
881 strlen(machine_password)+1,
883 strlen(machine_password)+1,
886 if (!NT_STATUS_IS_OK(result)) {
887 DEBUG(4,("failed kerberos session setup with %s\n",
891 if (NT_STATUS_IS_OK(result)) {
892 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
893 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
894 if (!NT_STATUS_IS_OK(result)) {
897 goto session_setup_done;
901 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
902 (*cli)->use_kerberos = False;
904 DEBUG(5, ("connecting to %s from %s with username "
905 "[%s]\\[%s]\n", controller, lp_netbios_name(),
906 lp_workgroup(), machine_account));
908 result = cli_session_setup(*cli,
911 strlen(machine_password)+1,
913 strlen(machine_password)+1,
915 if (!NT_STATUS_IS_OK(result)) {
916 DEBUG(4, ("authenticated session setup failed with %s\n",
920 if (NT_STATUS_IS_OK(result)) {
921 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
922 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
923 if (!NT_STATUS_IS_OK(result)) {
926 goto session_setup_done;
930 /* Fall back to non-kerberos session setup with auth_user */
932 (*cli)->use_kerberos = False;
934 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
936 sec_mode = smb1cli_conn_server_security_mode((*cli)->conn);
938 try_ipc_auth = false;
941 } else if (sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
945 if (try_ipc_auth && (strlen(ipc_username) > 0)) {
947 /* Only try authenticated if we have a username */
949 DEBUG(5, ("connecting to %s from %s with username "
950 "[%s]\\[%s]\n", controller, lp_netbios_name(),
951 ipc_domain, ipc_username));
953 if (NT_STATUS_IS_OK(cli_session_setup(
955 ipc_password, strlen(ipc_password)+1,
956 ipc_password, strlen(ipc_password)+1,
958 /* Successful logon with given username. */
959 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
960 if (!NT_STATUS_IS_OK(result)) {
963 goto session_setup_done;
965 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
966 ipc_domain, ipc_username ));
972 /* Fall back to anonymous connection, this might fail later */
973 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
974 "connection for DC %s\n",
977 result = cli_session_setup(*cli, "", NULL, 0, NULL, 0, "");
978 if (NT_STATUS_IS_OK(result)) {
979 DEBUG(5, ("Connected anonymously\n"));
980 result = cli_init_creds(*cli, "", "", "");
981 if (!NT_STATUS_IS_OK(result)) {
984 goto session_setup_done;
987 /* We can't session setup */
993 * This should be a short term hack until
994 * dynamic re-authentication is implemented.
996 * See Bug 9175 - winbindd doesn't recover from
997 * NT_STATUS_NETWORK_SESSION_EXPIRED
999 if (smbXcli_conn_protocol((*cli)->conn) >= PROTOCOL_SMB2_02) {
1000 smbXcli_session_set_disconnect_expired((*cli)->smb2.session);
1003 /* cache the server name for later connections */
1005 saf_store(domain->name, controller);
1006 if (domain->alt_name && (*cli)->use_kerberos) {
1007 saf_store(domain->alt_name, controller);
1010 winbindd_set_locator_kdc_envs(domain);
1012 result = cli_tree_connect(*cli, "IPC$", "IPC", "", 0);
1014 if (!NT_STATUS_IS_OK(result)) {
1015 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
1022 /* set the domain if empty; needed for schannel connections */
1023 if ( !(*cli)->domain[0] ) {
1024 result = cli_set_domain((*cli), domain->name);
1025 if (!NT_STATUS_IS_OK(result)) {
1026 SAFE_FREE(ipc_username);
1027 SAFE_FREE(ipc_domain);
1028 SAFE_FREE(ipc_password);
1033 result = NT_STATUS_OK;
1037 SAFE_FREE(machine_account);
1038 SAFE_FREE(machine_password);
1039 SAFE_FREE(machine_krb5_principal);
1040 SAFE_FREE(ipc_username);
1041 SAFE_FREE(ipc_domain);
1042 SAFE_FREE(ipc_password);
1044 if (!NT_STATUS_IS_OK(result)) {
1045 winbind_add_failed_connection_entry(domain, controller, result);
1046 if ((*cli) != NULL) {
1055 /*******************************************************************
1056 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1059 Keeps the list unique by not adding duplicate entries.
1061 @param[in] mem_ctx talloc memory context to allocate from
1062 @param[in] domain_name domain of the DC
1063 @param[in] dcname name of the DC to add to the list
1064 @param[in] pss Internet address and port pair to add to the list
1065 @param[in,out] dcs array of dc_name_ip structures to add to
1066 @param[in,out] num_dcs number of dcs returned in the dcs array
1067 @return true if the list was added to, false otherwise
1068 *******************************************************************/
1070 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1071 const char *dcname, struct sockaddr_storage *pss,
1072 struct dc_name_ip **dcs, int *num)
1076 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1077 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1081 /* Make sure there's no duplicates in the list */
1082 for (i=0; i<*num; i++)
1084 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1085 (struct sockaddr *)(void *)pss))
1088 *dcs = talloc_realloc(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1093 fstrcpy((*dcs)[*num].name, dcname);
1094 (*dcs)[*num].ss = *pss;
1099 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1100 struct sockaddr_storage *pss, uint16 port,
1101 struct sockaddr_storage **addrs, int *num)
1103 *addrs = talloc_realloc(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1105 if (*addrs == NULL) {
1110 (*addrs)[*num] = *pss;
1111 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1117 /*******************************************************************
1118 convert an ip to a name
1119 *******************************************************************/
1121 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1122 const struct winbindd_domain *domain,
1123 struct sockaddr_storage *pss,
1126 struct ip_service ip_list;
1127 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1129 const char *dc_name;
1136 /* For active directory servers, try to get the ldap server name.
1137 None of these failures should be considered critical for now */
1139 if (lp_security() == SEC_ADS) {
1141 ADS_STATUS ads_status;
1142 char addr[INET6_ADDRSTRLEN];
1144 print_sockaddr(addr, sizeof(addr), pss);
1146 ads = ads_init(domain->alt_name, domain->name, addr);
1147 ads->auth.flags |= ADS_AUTH_NO_BIND;
1149 ads_status = ads_connect(ads);
1150 if (ADS_ERR_OK(ads_status)) {
1151 /* We got a cldap packet. */
1152 *name = talloc_strdup(mem_ctx,
1153 ads->config.ldap_server_name);
1154 if (*name == NULL) {
1157 namecache_store(*name, 0x20, 1, &ip_list);
1159 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1161 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1162 if (ads_closest_dc(ads)) {
1163 char *sitename = sitename_fetch(ads->config.realm);
1165 /* We're going to use this KDC for this realm/domain.
1166 If we are using sites, then force the krb5 libs
1169 create_local_private_krb5_conf_for_domain(domain->alt_name,
1175 SAFE_FREE(sitename);
1177 /* use an off site KDC */
1178 create_local_private_krb5_conf_for_domain(domain->alt_name,
1184 winbindd_set_locator_kdc_envs(domain);
1186 /* Ensure we contact this DC also. */
1187 saf_store(domain->name, *name);
1188 saf_store(domain->alt_name, *name);
1191 ads_destroy( &ads );
1195 ads_destroy( &ads );
1200 status = nbt_getdc(winbind_messaging_context(), 10, pss, domain->name,
1201 &domain->sid, nt_version, mem_ctx, &nt_version,
1203 if (NT_STATUS_IS_OK(status)) {
1204 *name = talloc_strdup(mem_ctx, dc_name);
1205 if (*name == NULL) {
1208 namecache_store(*name, 0x20, 1, &ip_list);
1212 /* try node status request */
1214 if (name_status_find(domain->name, 0x1c, 0x20, pss, nbtname) ) {
1215 namecache_store(*name, 0x20, 1, &ip_list);
1218 *name = talloc_strdup(mem_ctx, nbtname);
1219 if (*name == NULL) {
1229 /*******************************************************************
1230 Retrieve a list of IP addresses for domain controllers.
1232 The array is sorted in the preferred connection order.
1234 @param[in] mem_ctx talloc memory context to allocate from
1235 @param[in] domain domain to retrieve DCs for
1236 @param[out] dcs array of dcs that will be returned
1237 @param[out] num_dcs number of dcs returned in the dcs array
1239 *******************************************************************/
1241 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1242 struct dc_name_ip **dcs, int *num_dcs)
1245 struct sockaddr_storage ss;
1246 struct ip_service *ip_list = NULL;
1247 int iplist_size = 0;
1250 enum security_types sec = (enum security_types)lp_security();
1252 is_our_domain = strequal(domain->name, lp_workgroup());
1254 /* If not our domain, get the preferred DC, by asking our primary DC */
1256 && get_dc_name_via_netlogon(domain, dcname, &ss)
1257 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1260 char addr[INET6_ADDRSTRLEN];
1261 print_sockaddr(addr, sizeof(addr), &ss);
1262 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1267 if (sec == SEC_ADS) {
1268 char *sitename = NULL;
1270 /* We need to make sure we know the local site before
1271 doing any DNS queries, as this will restrict the
1272 get_sorted_dc_list() call below to only fetching
1273 DNS records for the correct site. */
1275 /* Find any DC to get the site record.
1276 We deliberately don't care about the
1279 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1281 sitename = sitename_fetch(domain->alt_name);
1284 /* Do the site-specific AD dns lookup first. */
1285 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1286 &iplist_size, True);
1288 /* Add ips to the DC array. We don't look up the name
1289 of the DC in this function, but we fill in the char*
1290 of the ip now to make the failed connection cache
1292 for ( i=0; i<iplist_size; i++ ) {
1293 char addr[INET6_ADDRSTRLEN];
1294 print_sockaddr(addr, sizeof(addr),
1296 add_one_dc_unique(mem_ctx,
1305 SAFE_FREE(sitename);
1309 /* Now we add DCs from the main AD DNS lookup. */
1310 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1311 &iplist_size, True);
1313 for ( i=0; i<iplist_size; i++ ) {
1314 char addr[INET6_ADDRSTRLEN];
1315 print_sockaddr(addr, sizeof(addr),
1317 add_one_dc_unique(mem_ctx,
1329 /* Try standard netbios queries if no ADS and fall back to DNS queries
1330 * if alt_name is available */
1331 if (*num_dcs == 0) {
1332 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1334 if (iplist_size == 0) {
1335 if (domain->alt_name != NULL) {
1336 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1337 &iplist_size, true);
1341 for ( i=0; i<iplist_size; i++ ) {
1342 char addr[INET6_ADDRSTRLEN];
1343 print_sockaddr(addr, sizeof(addr),
1345 add_one_dc_unique(mem_ctx,
1360 /*******************************************************************
1361 Find and make a connection to a DC in the given domain.
1363 @param[in] mem_ctx talloc memory context to allocate from
1364 @param[in] domain domain to find a dc in
1365 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1366 @param[out] pss DC Internet address and port
1367 @param[out] fd fd of the open socket connected to the newly found dc
1368 @return true when a DC connection is made, false otherwise
1369 *******************************************************************/
1371 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1372 struct winbindd_domain *domain,
1373 char **dcname, struct sockaddr_storage *pss, int *fd)
1375 struct dc_name_ip *dcs = NULL;
1378 const char **dcnames = NULL;
1379 int num_dcnames = 0;
1381 struct sockaddr_storage *addrs = NULL;
1392 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1395 for (i=0; i<num_dcs; i++) {
1397 if (!add_string_to_array(mem_ctx, dcs[i].name,
1398 &dcnames, &num_dcnames)) {
1401 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, TCP_SMB_PORT,
1402 &addrs, &num_addrs)) {
1407 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1410 if ((addrs == NULL) || (dcnames == NULL))
1413 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1414 num_addrs, 0, 10, fd, &fd_index, NULL);
1415 if (!NT_STATUS_IS_OK(status)) {
1416 for (i=0; i<num_dcs; i++) {
1417 char ab[INET6_ADDRSTRLEN];
1418 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1419 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1420 "domain %s address %s. Error was %s\n",
1421 domain->name, ab, nt_errstr(status) ));
1422 winbind_add_failed_connection_entry(domain,
1423 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1428 *pss = addrs[fd_index];
1430 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1431 /* Ok, we've got a name for the DC */
1432 *dcname = talloc_strdup(mem_ctx, dcnames[fd_index]);
1433 if (*dcname == NULL) {
1439 /* Try to figure out the name */
1440 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1444 /* We can not continue without the DC's name */
1445 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1446 NT_STATUS_UNSUCCESSFUL);
1448 /* Throw away all arrays as we're doing this again. */
1452 TALLOC_FREE(dcnames);
1464 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1466 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1470 static void store_current_dc_in_gencache(const char *domain_name,
1471 const char *dc_name,
1472 struct cli_state *cli)
1474 char addr[INET6_ADDRSTRLEN];
1478 if (!cli_state_is_connected(cli)) {
1482 print_sockaddr(addr, sizeof(addr),
1483 smbXcli_conn_remote_sockaddr(cli->conn));
1485 key = current_dc_key(talloc_tos(), domain_name);
1490 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1491 if (value == NULL) {
1495 gencache_set(key, value, 0x7fffffff);
1501 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1502 const char *domain_name,
1503 char **p_dc_name, char **p_dc_ip)
1505 char *key, *value, *p;
1507 char *dc_name = NULL;
1510 key = current_dc_key(talloc_tos(), domain_name);
1514 if (!gencache_get(key, &value, NULL)) {
1517 p = strchr(value, ' ');
1521 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1522 if (dc_ip == NULL) {
1525 dc_name = talloc_strdup(mem_ctx, p+1);
1526 if (dc_name == NULL) {
1530 if (p_dc_ip != NULL) {
1534 if (p_dc_name != NULL) {
1535 *p_dc_name = dc_name;
1540 TALLOC_FREE(dc_name);
1546 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1547 struct winbindd_cm_conn *new_conn)
1549 TALLOC_CTX *mem_ctx;
1551 char *saf_servername = saf_fetch( domain->name );
1554 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1555 SAFE_FREE(saf_servername);
1556 set_domain_offline(domain);
1557 return NT_STATUS_NO_MEMORY;
1560 /* we have to check the server affinity cache here since
1561 later we select a DC based on response time and not preference */
1563 /* Check the negative connection cache
1564 before talking to it. It going down may have
1565 triggered the reconnection. */
1567 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1569 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1570 saf_servername, domain->name ));
1572 /* convert an ip address to a name */
1573 if (is_ipaddress( saf_servername ) ) {
1574 char *dcname = NULL;
1575 struct sockaddr_storage ss;
1577 if (!interpret_string_addr(&ss, saf_servername,
1579 return NT_STATUS_UNSUCCESSFUL;
1581 if (dcip_to_name(mem_ctx, domain, &ss, &dcname)) {
1582 domain->dcname = talloc_strdup(domain,
1584 if (domain->dcname == NULL) {
1585 SAFE_FREE(saf_servername);
1586 return NT_STATUS_NO_MEMORY;
1589 winbind_add_failed_connection_entry(
1590 domain, saf_servername,
1591 NT_STATUS_UNSUCCESSFUL);
1594 domain->dcname = talloc_strdup(domain, saf_servername);
1595 if (domain->dcname == NULL) {
1596 SAFE_FREE(saf_servername);
1597 return NT_STATUS_NO_MEMORY;
1601 SAFE_FREE( saf_servername );
1604 for (retries = 0; retries < 3; retries++) {
1607 char *dcname = NULL;
1609 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1611 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1612 domain->dcname ? domain->dcname : "", domain->name ));
1614 if (domain->dcname != NULL
1615 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1616 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1620 status = smbsock_connect(&domain->dcaddr, 0,
1623 if (!NT_STATUS_IS_OK(status)) {
1629 !find_new_dc(mem_ctx, domain, &dcname, &domain->dcaddr, &fd))
1631 /* This is the one place where we will
1632 set the global winbindd offline state
1633 to true, if a "WINBINDD_OFFLINE" entry
1634 is found in the winbindd cache. */
1635 set_global_winbindd_state_offline();
1638 if (dcname != NULL) {
1639 talloc_free(domain->dcname);
1641 domain->dcname = talloc_move(domain, &dcname);
1642 if (domain->dcname == NULL) {
1643 result = NT_STATUS_NO_MEMORY;
1648 new_conn->cli = NULL;
1650 result = cm_prepare_connection(domain, fd, domain->dcname,
1651 &new_conn->cli, &retry);
1652 if (!NT_STATUS_IS_OK(result)) {
1653 /* Don't leak the smb connection socket */
1661 if (NT_STATUS_IS_OK(result)) {
1663 winbindd_set_locator_kdc_envs(domain);
1665 if (domain->online == False) {
1666 /* We're changing state from offline to online. */
1667 set_global_winbindd_state_online();
1669 set_domain_online(domain);
1672 * Much as I hate global state, this seems to be the point
1673 * where we can be certain that we have a proper connection to
1674 * a DC. wbinfo --dc-info needs that information, store it in
1675 * gencache with a looong timeout. This will need revisiting
1676 * once we start to connect to multiple DCs, wbcDcInfo is
1677 * already prepared for that.
1679 store_current_dc_in_gencache(domain->name, domain->dcname,
1682 /* Ensure we setup the retry handler. */
1683 set_domain_offline(domain);
1686 talloc_destroy(mem_ctx);
1690 /* Close down all open pipes on a connection. */
1692 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1696 /* We're closing down a possibly dead
1697 connection. Don't have impossibly long (10s) timeouts. */
1700 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1703 if (conn->samr_pipe != NULL) {
1704 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1705 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1707 &conn->sam_connect_handle,
1710 TALLOC_FREE(conn->samr_pipe);
1711 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1713 cli_set_timeout(conn->cli, 500);
1717 if (conn->lsa_pipe != NULL) {
1718 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1719 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1724 TALLOC_FREE(conn->lsa_pipe);
1725 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1727 cli_set_timeout(conn->cli, 500);
1731 if (conn->lsa_pipe_tcp != NULL) {
1732 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1733 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1738 TALLOC_FREE(conn->lsa_pipe_tcp);
1739 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1741 cli_set_timeout(conn->cli, 500);
1745 if (conn->netlogon_pipe != NULL) {
1746 TALLOC_FREE(conn->netlogon_pipe);
1747 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1749 cli_set_timeout(conn->cli, 500);
1754 cli_shutdown(conn->cli);
1760 void close_conns_after_fork(void)
1762 struct winbindd_domain *domain;
1763 struct winbindd_cli_state *cli_state;
1765 for (domain = domain_list(); domain; domain = domain->next) {
1767 * first close the low level SMB TCP connection
1768 * so that we don't generate any SMBclose
1769 * requests in invalidate_cm_connection()
1771 if (cli_state_is_connected(domain->conn.cli)) {
1772 smbXcli_conn_disconnect(domain->conn.cli->conn, NT_STATUS_OK);
1775 invalidate_cm_connection(&domain->conn);
1778 for (cli_state = winbindd_client_list();
1780 cli_state = cli_state->next) {
1781 if (cli_state->sock >= 0) {
1782 close(cli_state->sock);
1783 cli_state->sock = -1;
1788 static bool connection_ok(struct winbindd_domain *domain)
1792 ok = cli_state_is_connected(domain->conn.cli);
1794 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1795 domain->dcname, domain->name));
1799 if (domain->online == False) {
1800 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1807 /* Initialize a new connection up to the RPC BIND.
1808 Bypass online status check so always does network calls. */
1810 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1814 /* Internal connections never use the network. */
1815 if (domain->internal) {
1816 domain->initialized = True;
1817 return NT_STATUS_OK;
1820 if (connection_ok(domain)) {
1821 if (!domain->initialized) {
1822 set_dc_type_and_flags(domain);
1824 return NT_STATUS_OK;
1827 invalidate_cm_connection(&domain->conn);
1829 result = cm_open_connection(domain, &domain->conn);
1831 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1832 set_dc_type_and_flags(domain);
1838 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1840 if (domain->internal) {
1841 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1844 if (domain->initialized && !domain->online) {
1845 /* We check for online status elsewhere. */
1846 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1849 return init_dc_connection_network(domain);
1852 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1856 status = init_dc_connection(domain);
1857 if (!NT_STATUS_IS_OK(status)) {
1861 if (!domain->internal && domain->conn.cli == NULL) {
1862 /* happens for trusted domains without inbound trust */
1863 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1866 return NT_STATUS_OK;
1869 /******************************************************************************
1870 Set the trust flags (direction and forest location) for a domain
1871 ******************************************************************************/
1873 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1875 struct winbindd_domain *our_domain;
1876 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1878 struct netr_DomainTrustList trusts;
1880 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1881 NETR_TRUST_FLAG_OUTBOUND |
1882 NETR_TRUST_FLAG_INBOUND);
1883 struct rpc_pipe_client *cli;
1884 TALLOC_CTX *mem_ctx = NULL;
1885 struct dcerpc_binding_handle *b;
1887 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1889 /* Our primary domain doesn't need to worry about trust flags.
1890 Force it to go through the network setup */
1891 if ( domain->primary ) {
1895 our_domain = find_our_domain();
1897 if ( !connection_ok(our_domain) ) {
1898 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1902 /* This won't work unless our domain is AD */
1904 if ( !our_domain->active_directory ) {
1908 /* Use DsEnumerateDomainTrusts to get us the trust direction
1911 result = cm_connect_netlogon(our_domain, &cli);
1913 if (!NT_STATUS_IS_OK(result)) {
1914 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1915 "a connection to %s for PIPE_NETLOGON (%s)\n",
1916 domain->name, nt_errstr(result)));
1920 b = cli->binding_handle;
1922 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1923 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1927 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1932 if (!NT_STATUS_IS_OK(result)) {
1933 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1934 "failed to query trusted domain list: %s\n",
1935 nt_errstr(result)));
1936 talloc_destroy(mem_ctx);
1939 if (!W_ERROR_IS_OK(werr)) {
1940 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1941 "failed to query trusted domain list: %s\n",
1943 talloc_destroy(mem_ctx);
1947 /* Now find the domain name and get the flags */
1949 for ( i=0; i<trusts.count; i++ ) {
1950 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1951 domain->domain_flags = trusts.array[i].trust_flags;
1952 domain->domain_type = trusts.array[i].trust_type;
1953 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1955 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1956 domain->active_directory = True;
1958 /* This flag is only set if the domain is *our*
1959 primary domain and the primary domain is in
1962 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1964 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1965 "native mode.\n", domain->name,
1966 domain->native_mode ? "" : "NOT "));
1968 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1969 "running active directory.\n", domain->name,
1970 domain->active_directory ? "" : "NOT "));
1972 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1973 domain->can_do_validation6 = domain->active_directory;
1975 domain->initialized = True;
1981 talloc_destroy( mem_ctx );
1983 return domain->initialized;
1986 /******************************************************************************
1987 We can 'sense' certain things about the DC by it's replies to certain
1990 This tells us if this particular remote server is Active Directory, and if it
1992 ******************************************************************************/
1994 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1996 NTSTATUS status, result;
1998 TALLOC_CTX *mem_ctx = NULL;
1999 struct rpc_pipe_client *cli = NULL;
2000 struct policy_handle pol;
2001 union dssetup_DsRoleInfo info;
2002 union lsa_PolicyInformation *lsa_info = NULL;
2004 if (!connection_ok(domain)) {
2008 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
2011 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
2015 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
2017 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
2021 if (!NT_STATUS_IS_OK(status)) {
2022 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2023 "PI_DSSETUP on domain %s: (%s)\n",
2024 domain->name, nt_errstr(status)));
2026 /* if this is just a non-AD domain we need to continue
2027 * identifying so that we can in the end return with
2028 * domain->initialized = True - gd */
2033 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
2034 DS_ROLE_BASIC_INFORMATION,
2039 if (NT_STATUS_IS_OK(status)) {
2040 result = werror_to_ntstatus(werr);
2042 if (!NT_STATUS_IS_OK(status)) {
2043 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
2044 "on domain %s failed: (%s)\n",
2045 domain->name, nt_errstr(status)));
2047 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
2048 * every opcode on the DSSETUP pipe, continue with
2049 * no_dssetup mode here as well to get domain->initialized
2052 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
2056 TALLOC_FREE(mem_ctx);
2060 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
2061 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
2062 domain->native_mode = True;
2064 domain->native_mode = False;
2068 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
2069 &ndr_table_lsarpc, &cli);
2071 if (!NT_STATUS_IS_OK(status)) {
2072 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
2073 "PI_LSARPC on domain %s: (%s)\n",
2074 domain->name, nt_errstr(status)));
2076 TALLOC_FREE(mem_ctx);
2080 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
2081 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
2083 if (NT_STATUS_IS_OK(status)) {
2084 /* This particular query is exactly what Win2k clients use
2085 to determine that the DC is active directory */
2086 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
2088 LSA_POLICY_INFO_DNS,
2093 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2094 domain->active_directory = True;
2096 if (lsa_info->dns.name.string) {
2097 talloc_free(domain->name);
2098 domain->name = talloc_strdup(domain,
2099 lsa_info->dns.name.string);
2100 if (domain->name == NULL) {
2105 if (lsa_info->dns.dns_domain.string) {
2106 talloc_free(domain->alt_name);
2108 talloc_strdup(domain,
2109 lsa_info->dns.dns_domain.string);
2110 if (domain->alt_name == NULL) {
2115 /* See if we can set some domain trust flags about
2118 if (lsa_info->dns.dns_forest.string) {
2119 talloc_free(domain->forest_name);
2120 domain->forest_name =
2121 talloc_strdup(domain,
2122 lsa_info->dns.dns_forest.string);
2123 if (domain->forest_name == NULL) {
2127 if (strequal(domain->forest_name, domain->alt_name)) {
2128 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2132 if (lsa_info->dns.sid) {
2133 sid_copy(&domain->sid, lsa_info->dns.sid);
2136 domain->active_directory = False;
2138 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2139 SEC_FLAG_MAXIMUM_ALLOWED,
2142 if (!NT_STATUS_IS_OK(status)) {
2146 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2148 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2151 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2153 if (lsa_info->account_domain.name.string) {
2154 talloc_free(domain->name);
2156 talloc_strdup(domain,
2157 lsa_info->account_domain.name.string);
2160 if (lsa_info->account_domain.sid) {
2161 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2167 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2168 domain->name, domain->native_mode ? "" : "NOT "));
2170 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2171 domain->name, domain->active_directory ? "" : "NOT "));
2173 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2174 domain->can_do_validation6 = domain->active_directory;
2178 TALLOC_FREE(mem_ctx);
2180 domain->initialized = True;
2183 /**********************************************************************
2184 Set the domain_flags (trust attributes, domain operating modes, etc...
2185 ***********************************************************************/
2187 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2189 /* we always have to contact our primary domain */
2191 if ( domain->primary ) {
2192 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2193 "primary domain\n"));
2194 set_dc_type_and_flags_connect( domain );
2198 /* Use our DC to get the information if possible */
2200 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2201 /* Otherwise, fallback to contacting the
2203 set_dc_type_and_flags_connect( domain );
2211 /**********************************************************************
2212 ***********************************************************************/
2214 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2215 struct netlogon_creds_CredentialState **ppdc)
2217 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2218 struct rpc_pipe_client *netlogon_pipe;
2220 if (lp_client_schannel() == False) {
2221 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2224 result = cm_connect_netlogon(domain, &netlogon_pipe);
2225 if (!NT_STATUS_IS_OK(result)) {
2229 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2232 if (!domain->conn.netlogon_pipe->dc) {
2233 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2236 *ppdc = domain->conn.netlogon_pipe->dc;
2237 return NT_STATUS_OK;
2240 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2241 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2243 struct winbindd_cm_conn *conn;
2244 NTSTATUS status, result;
2245 struct netlogon_creds_CredentialState *p_creds;
2246 char *machine_password = NULL;
2247 char *machine_account = NULL;
2248 const char *domain_name = NULL;
2250 if (sid_check_is_our_sam(&domain->sid)) {
2251 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2254 status = init_dc_connection_rpc(domain);
2255 if (!NT_STATUS_IS_OK(status)) {
2259 conn = &domain->conn;
2261 if (rpccli_is_connected(conn->samr_pipe)) {
2265 TALLOC_FREE(conn->samr_pipe);
2268 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2269 * sign and sealed pipe using the machine account password by
2270 * preference. If we can't - try schannel, if that fails, try
2274 if ((conn->cli->user_name[0] == '\0') ||
2275 (conn->cli->domain[0] == '\0') ||
2276 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2278 status = get_trust_creds(domain, &machine_password,
2279 &machine_account, NULL);
2280 if (!NT_STATUS_IS_OK(status)) {
2281 DEBUG(10, ("cm_connect_sam: No no user available for "
2282 "domain %s, trying schannel\n", conn->cli->domain));
2285 domain_name = domain->name;
2287 machine_password = SMB_STRDUP(conn->cli->password);
2288 machine_account = SMB_STRDUP(conn->cli->user_name);
2289 domain_name = conn->cli->domain;
2292 if (!machine_password || !machine_account) {
2293 status = NT_STATUS_NO_MEMORY;
2297 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2298 authenticated SAMR pipe with sign & seal. */
2299 status = cli_rpc_pipe_open_spnego(conn->cli,
2303 DCERPC_AUTH_LEVEL_PRIVACY,
2304 smbXcli_conn_remote_name(conn->cli->conn),
2310 if (!NT_STATUS_IS_OK(status)) {
2311 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2312 "pipe for domain %s using NTLMSSP "
2313 "authenticated pipe: user %s\\%s. Error was "
2314 "%s\n", domain->name, domain_name,
2315 machine_account, nt_errstr(status)));
2319 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2320 "domain %s using NTLMSSP authenticated "
2321 "pipe: user %s\\%s\n", domain->name,
2322 domain_name, machine_account));
2324 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2325 conn->samr_pipe->desthost,
2326 SEC_FLAG_MAXIMUM_ALLOWED,
2327 &conn->sam_connect_handle,
2329 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2332 if (NT_STATUS_IS_OK(status)) {
2336 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2337 "failed for domain %s, error was %s. Trying schannel\n",
2338 domain->name, nt_errstr(status) ));
2339 TALLOC_FREE(conn->samr_pipe);
2343 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2345 status = cm_get_schannel_creds(domain, &p_creds);
2346 if (!NT_STATUS_IS_OK(status)) {
2347 /* If this call fails - conn->cli can now be NULL ! */
2348 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2349 "for domain %s (error %s), trying anon\n",
2351 nt_errstr(status) ));
2354 status = cli_rpc_pipe_open_schannel_with_key
2355 (conn->cli, &ndr_table_samr, NCACN_NP,
2356 DCERPC_AUTH_LEVEL_PRIVACY,
2357 domain->name, &p_creds, &conn->samr_pipe);
2359 if (!NT_STATUS_IS_OK(status)) {
2360 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2361 "domain %s using schannel. Error was %s\n",
2362 domain->name, nt_errstr(status) ));
2365 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2366 "schannel.\n", domain->name ));
2368 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2369 conn->samr_pipe->desthost,
2370 SEC_FLAG_MAXIMUM_ALLOWED,
2371 &conn->sam_connect_handle,
2373 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2376 if (NT_STATUS_IS_OK(status)) {
2379 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2380 "for domain %s, error was %s. Trying anonymous\n",
2381 domain->name, nt_errstr(status) ));
2382 TALLOC_FREE(conn->samr_pipe);
2386 /* Finally fall back to anonymous. */
2387 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr,
2390 if (!NT_STATUS_IS_OK(status)) {
2394 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2395 conn->samr_pipe->desthost,
2396 SEC_FLAG_MAXIMUM_ALLOWED,
2397 &conn->sam_connect_handle,
2399 if (!NT_STATUS_IS_OK(status)) {
2400 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2401 "for domain %s Error was %s\n",
2402 domain->name, nt_errstr(status) ));
2405 if (!NT_STATUS_IS_OK(result)) {
2407 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2408 "for domain %s Error was %s\n",
2409 domain->name, nt_errstr(result)));
2414 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2416 &conn->sam_connect_handle,
2417 SEC_FLAG_MAXIMUM_ALLOWED,
2419 &conn->sam_domain_handle,
2421 if (!NT_STATUS_IS_OK(status)) {
2428 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2430 * if we got access denied, we might just have no access rights
2431 * to talk to the remote samr server server (e.g. when we are a
2432 * PDC and we are connecting a w2k8 pdc via an interdomain
2433 * trust). In that case do not invalidate the whole connection
2436 TALLOC_FREE(conn->samr_pipe);
2437 ZERO_STRUCT(conn->sam_domain_handle);
2439 } else if (!NT_STATUS_IS_OK(status)) {
2440 invalidate_cm_connection(conn);
2444 *cli = conn->samr_pipe;
2445 *sam_handle = conn->sam_domain_handle;
2446 SAFE_FREE(machine_password);
2447 SAFE_FREE(machine_account);
2451 /**********************************************************************
2452 open an schanneld ncacn_ip_tcp connection to LSA
2453 ***********************************************************************/
2455 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2456 TALLOC_CTX *mem_ctx,
2457 struct rpc_pipe_client **cli)
2459 struct winbindd_cm_conn *conn;
2460 struct netlogon_creds_CredentialState *creds;
2463 DEBUG(10,("cm_connect_lsa_tcp\n"));
2465 status = init_dc_connection_rpc(domain);
2466 if (!NT_STATUS_IS_OK(status)) {
2470 conn = &domain->conn;
2472 if (conn->lsa_pipe_tcp &&
2473 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2474 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2475 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2479 TALLOC_FREE(conn->lsa_pipe_tcp);
2481 status = cm_get_schannel_creds(domain, &creds);
2482 if (!NT_STATUS_IS_OK(status)) {
2486 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2489 DCERPC_AUTH_LEVEL_PRIVACY,
2492 &conn->lsa_pipe_tcp);
2493 if (!NT_STATUS_IS_OK(status)) {
2494 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2495 nt_errstr(status)));
2500 if (!NT_STATUS_IS_OK(status)) {
2501 TALLOC_FREE(conn->lsa_pipe_tcp);
2505 *cli = conn->lsa_pipe_tcp;
2510 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2511 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2513 struct winbindd_cm_conn *conn;
2514 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2515 struct netlogon_creds_CredentialState *p_creds;
2517 result = init_dc_connection_rpc(domain);
2518 if (!NT_STATUS_IS_OK(result))
2521 conn = &domain->conn;
2523 if (rpccli_is_connected(conn->lsa_pipe)) {
2527 TALLOC_FREE(conn->lsa_pipe);
2529 if ((conn->cli->user_name[0] == '\0') ||
2530 (conn->cli->domain[0] == '\0') ||
2531 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2532 DEBUG(10, ("cm_connect_lsa: No no user available for "
2533 "domain %s, trying schannel\n", conn->cli->domain));
2537 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2538 * authenticated LSA pipe with sign & seal. */
2539 result = cli_rpc_pipe_open_spnego
2540 (conn->cli, &ndr_table_lsarpc, NCACN_NP,
2542 DCERPC_AUTH_LEVEL_PRIVACY,
2543 smbXcli_conn_remote_name(conn->cli->conn),
2544 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2547 if (!NT_STATUS_IS_OK(result)) {
2548 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2549 "domain %s using NTLMSSP authenticated pipe: user "
2550 "%s\\%s. Error was %s. Trying schannel.\n",
2551 domain->name, conn->cli->domain,
2552 conn->cli->user_name, nt_errstr(result)));
2556 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2557 "NTLMSSP authenticated pipe: user %s\\%s\n",
2558 domain->name, conn->cli->domain, conn->cli->user_name ));
2560 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2561 SEC_FLAG_MAXIMUM_ALLOWED,
2563 if (NT_STATUS_IS_OK(result)) {
2567 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2570 TALLOC_FREE(conn->lsa_pipe);
2574 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2576 result = cm_get_schannel_creds(domain, &p_creds);
2577 if (!NT_STATUS_IS_OK(result)) {
2578 /* If this call fails - conn->cli can now be NULL ! */
2579 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2580 "for domain %s (error %s), trying anon\n",
2582 nt_errstr(result) ));
2585 result = cli_rpc_pipe_open_schannel_with_key
2586 (conn->cli, &ndr_table_lsarpc, NCACN_NP,
2587 DCERPC_AUTH_LEVEL_PRIVACY,
2588 domain->name, &p_creds, &conn->lsa_pipe);
2590 if (!NT_STATUS_IS_OK(result)) {
2591 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2592 "domain %s using schannel. Error was %s\n",
2593 domain->name, nt_errstr(result) ));
2596 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2597 "schannel.\n", domain->name ));
2599 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2600 SEC_FLAG_MAXIMUM_ALLOWED,
2602 if (NT_STATUS_IS_OK(result)) {
2606 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2609 TALLOC_FREE(conn->lsa_pipe);
2613 result = cli_rpc_pipe_open_noauth(conn->cli,
2616 if (!NT_STATUS_IS_OK(result)) {
2617 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2621 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2622 SEC_FLAG_MAXIMUM_ALLOWED,
2625 if (!NT_STATUS_IS_OK(result)) {
2626 invalidate_cm_connection(conn);
2630 *cli = conn->lsa_pipe;
2631 *lsa_policy = conn->lsa_policy;
2635 /****************************************************************************
2636 Open a LSA connection to a DC, suiteable for LSA lookup calls.
2637 ****************************************************************************/
2639 NTSTATUS cm_connect_lsat(struct winbindd_domain *domain,
2640 TALLOC_CTX *mem_ctx,
2641 struct rpc_pipe_client **cli,
2642 struct policy_handle *lsa_policy)
2646 if (domain->can_do_ncacn_ip_tcp) {
2647 status = cm_connect_lsa_tcp(domain, mem_ctx, cli);
2648 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
2649 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
2650 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
2651 invalidate_cm_connection(&domain->conn);
2652 status = cm_connect_lsa_tcp(domain, mem_ctx, cli);
2654 if (!NT_STATUS_IS_OK(status)) {
2658 return NT_STATUS_OK;
2661 status = cm_connect_lsa(domain, mem_ctx, cli, lsa_policy);
2666 /****************************************************************************
2667 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2668 session key stored in conn->netlogon_pipe->dc->sess_key.
2669 ****************************************************************************/
2671 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2672 struct rpc_pipe_client **cli)
2674 struct winbindd_cm_conn *conn;
2677 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS | NETLOGON_NEG_SUPPORTS_AES;
2678 uint8_t mach_pwd[16];
2679 enum netr_SchannelType sec_chan_type;
2680 const char *account_name;
2681 struct rpc_pipe_client *netlogon_pipe = NULL;
2685 result = init_dc_connection_rpc(domain);
2686 if (!NT_STATUS_IS_OK(result)) {
2690 conn = &domain->conn;
2692 if (rpccli_is_connected(conn->netlogon_pipe)) {
2693 *cli = conn->netlogon_pipe;
2694 return NT_STATUS_OK;
2697 TALLOC_FREE(conn->netlogon_pipe);
2699 result = cli_rpc_pipe_open_noauth(conn->cli,
2700 &ndr_table_netlogon,
2702 if (!NT_STATUS_IS_OK(result)) {
2706 if ((!IS_DC) && (!domain->primary)) {
2707 /* Clear the schannel request bit and drop down */
2708 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2712 if (lp_client_schannel() != False) {
2713 neg_flags |= NETLOGON_NEG_SCHANNEL;
2716 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2719 TALLOC_FREE(netlogon_pipe);
2720 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2723 result = rpccli_netlogon_setup_creds(
2725 domain->dcname, /* server name. */
2726 domain->name, /* domain name */
2727 lp_netbios_name(), /* client name */
2728 account_name, /* machine account */
2729 mach_pwd, /* machine password */
2730 sec_chan_type, /* from get_trust_pw */
2733 if (!NT_STATUS_IS_OK(result)) {
2734 TALLOC_FREE(netlogon_pipe);
2738 if ((lp_client_schannel() == True) &&
2739 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2740 DEBUG(3, ("Server did not offer schannel\n"));
2741 TALLOC_FREE(netlogon_pipe);
2742 return NT_STATUS_ACCESS_DENIED;
2746 if ((lp_client_schannel() == False) ||
2747 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2749 * NetSamLogonEx only works for schannel
2751 domain->can_do_samlogon_ex = False;
2753 /* We're done - just keep the existing connection to NETLOGON
2755 conn->netlogon_pipe = netlogon_pipe;
2756 *cli = conn->netlogon_pipe;
2757 return NT_STATUS_OK;
2760 /* Using the credentials from the first pipe, open a signed and sealed
2761 second netlogon pipe. The session key is stored in the schannel
2762 part of the new pipe auth struct.
2765 result = cli_rpc_pipe_open_schannel_with_key(
2766 conn->cli, &ndr_table_netlogon, NCACN_NP,
2767 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2768 &conn->netlogon_pipe);
2770 /* We can now close the initial netlogon pipe. */
2771 TALLOC_FREE(netlogon_pipe);
2773 if (!NT_STATUS_IS_OK(result)) {
2774 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2775 "was %s\n", nt_errstr(result)));
2777 invalidate_cm_connection(conn);
2782 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2783 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2784 * supported). We used to only try SamLogonEx for AD, but
2785 * Samba DCs can also do it. And because we don't distinguish
2786 * between Samba and NT4, always try it once.
2788 domain->can_do_samlogon_ex = true;
2790 *cli = conn->netlogon_pipe;
2791 return NT_STATUS_OK;
2794 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2797 struct server_id server_id,
2800 struct winbindd_domain *domain;
2801 char *freeit = NULL;
2805 || (data->data == NULL)
2806 || (data->length == 0)
2807 || (data->data[data->length-1] != '\0')) {
2808 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2813 addr = (char *)data->data;
2814 DEBUG(10, ("IP %s dropped\n", addr));
2816 if (!is_ipaddress(addr)) {
2819 * Some code sends us ip addresses with the /netmask
2822 slash = strchr(addr, '/');
2823 if (slash == NULL) {
2824 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2828 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2829 if (freeit == NULL) {
2830 DEBUG(1, ("talloc failed\n"));
2834 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2837 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2838 char sockaddr[INET6_ADDRSTRLEN];
2840 if (!cli_state_is_connected(domain->conn.cli)) {
2844 print_sockaddr(sockaddr, sizeof(sockaddr),
2845 smbXcli_conn_local_sockaddr(domain->conn.cli->conn));
2847 if (strequal(sockaddr, addr)) {
2848 smbXcli_conn_disconnect(domain->conn.cli->conn, NT_STATUS_OK);
2851 TALLOC_FREE(freeit);