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 (uint8 *)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 (uint8 *)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 (uint8 *)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 (uint8 *)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 event_context *ctx,
290 struct timed_event *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 = event_add_timed(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 (uint8 *)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 (uint8 *)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 = event_add_timed(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) {
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 (strlen(domain->alt_name) == 0) {
669 fstrcpy(domain->alt_name,
670 domain_info->domain_name);
672 if (strlen(domain->forest_name) == 0) {
673 fstrcpy(domain->forest_name,
674 domain_info->forest_name);
678 result = dcerpc_netr_GetAnyDCName(b, mem_ctx,
685 /* And restore our original timeout. */
686 rpccli_set_timeout(netlogon_pipe, orig_timeout);
688 if (!NT_STATUS_IS_OK(result)) {
689 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
691 talloc_destroy(mem_ctx);
695 if (!W_ERROR_IS_OK(werr)) {
696 DEBUG(10,("dcerpc_netr_GetAnyDCName failed: %s\n",
698 talloc_destroy(mem_ctx);
702 /* dcerpc_netr_GetAnyDCName gives us a name with \\ */
703 p = strip_hostname(tmp);
707 talloc_destroy(mem_ctx);
709 DEBUG(10,("dcerpc_netr_GetAnyDCName returned %s\n", dcname));
711 if (!resolve_name(dcname, dc_ss, 0x20, true)) {
719 * Helper function to assemble trust password and account name
721 static NTSTATUS get_trust_creds(const struct winbindd_domain *domain,
722 char **machine_password,
723 char **machine_account,
724 char **machine_krb5_principal)
726 const char *account_name;
727 const char *name = NULL;
729 /* If we are a DC and this is not our own domain */
734 struct winbindd_domain *our_domain = find_our_domain();
737 return NT_STATUS_INVALID_SERVER_STATE;
739 name = our_domain->name;
742 if (!get_trust_pw_clear(name, machine_password,
743 &account_name, NULL))
745 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
748 if ((machine_account != NULL) &&
749 (asprintf(machine_account, "%s$", account_name) == -1))
751 return NT_STATUS_NO_MEMORY;
754 /* For now assume our machine account only exists in our domain */
756 if (machine_krb5_principal != NULL)
758 struct winbindd_domain *our_domain = find_our_domain();
761 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
764 if (asprintf(machine_krb5_principal, "%s$@%s",
765 account_name, our_domain->alt_name) == -1)
767 return NT_STATUS_NO_MEMORY;
770 strupper_m(*machine_krb5_principal);
776 /************************************************************************
777 Given a fd with a just-connected TCP connection to a DC, open a connection
779 ************************************************************************/
781 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
783 const char *controller,
784 struct cli_state **cli,
787 bool try_spnego = false;
788 bool try_ipc_auth = false;
789 char *machine_password = NULL;
790 char *machine_krb5_principal = NULL;
791 char *machine_account = NULL;
792 char *ipc_username = NULL;
793 char *ipc_domain = NULL;
794 char *ipc_password = NULL;
796 uint16_t sec_mode = 0;
798 struct named_mutex *mutex;
800 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
802 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
803 controller, domain->name ));
807 mutex = grab_named_mutex(talloc_tos(), controller,
808 WINBIND_SERVER_MUTEX_WAIT_TIME);
811 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
813 result = NT_STATUS_POSSIBLE_DEADLOCK;
817 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
819 *cli = cli_state_create(NULL, sockfd,
820 controller, domain->alt_name,
821 SMB_SIGNING_DEFAULT, flags);
824 DEBUG(1, ("Could not cli_initialize\n"));
825 result = NT_STATUS_NO_MEMORY;
829 cli_set_timeout(*cli, 10000); /* 10 seconds */
831 result = smbXcli_negprot((*cli)->conn, (*cli)->timeout, PROTOCOL_CORE,
834 if (!NT_STATUS_IS_OK(result)) {
835 DEBUG(1, ("cli_negprot failed: %s\n", nt_errstr(result)));
839 if (smbXcli_conn_protocol((*cli)->conn) >= PROTOCOL_NT1 &&
840 smb1cli_conn_capabilities((*cli)->conn) & CAP_EXTENDED_SECURITY) {
842 } else if (smbXcli_conn_protocol((*cli)->conn) >= PROTOCOL_SMB2_02) {
846 if (!is_dc_trusted_domain_situation(domain->name) && try_spnego) {
847 result = get_trust_creds(domain, &machine_password,
849 &machine_krb5_principal);
850 if (!NT_STATUS_IS_OK(result)) {
854 if (lp_security() == SEC_ADS) {
856 /* Try a krb5 session */
858 (*cli)->use_kerberos = True;
859 DEBUG(5, ("connecting to %s from %s with kerberos principal "
860 "[%s] and realm [%s]\n", controller, lp_netbios_name(),
861 machine_krb5_principal, domain->alt_name));
863 winbindd_set_locator_kdc_envs(domain);
865 result = cli_session_setup(*cli,
866 machine_krb5_principal,
868 strlen(machine_password)+1,
870 strlen(machine_password)+1,
873 if (!NT_STATUS_IS_OK(result)) {
874 DEBUG(4,("failed kerberos session setup with %s\n",
878 if (NT_STATUS_IS_OK(result)) {
879 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
880 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
881 if (!NT_STATUS_IS_OK(result)) {
884 goto session_setup_done;
888 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
889 (*cli)->use_kerberos = False;
891 DEBUG(5, ("connecting to %s from %s with username "
892 "[%s]\\[%s]\n", controller, lp_netbios_name(),
893 lp_workgroup(), machine_account));
895 result = cli_session_setup(*cli,
898 strlen(machine_password)+1,
900 strlen(machine_password)+1,
902 if (!NT_STATUS_IS_OK(result)) {
903 DEBUG(4, ("authenticated session setup failed with %s\n",
907 if (NT_STATUS_IS_OK(result)) {
908 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
909 result = cli_init_creds(*cli, machine_account, lp_workgroup(), machine_password);
910 if (!NT_STATUS_IS_OK(result)) {
913 goto session_setup_done;
917 /* Fall back to non-kerberos session setup with auth_user */
919 (*cli)->use_kerberos = False;
921 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
923 sec_mode = smb1cli_conn_server_security_mode((*cli)->conn);
925 try_ipc_auth = false;
928 } else if (sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
932 if (try_ipc_auth && (strlen(ipc_username) > 0)) {
934 /* Only try authenticated if we have a username */
936 DEBUG(5, ("connecting to %s from %s with username "
937 "[%s]\\[%s]\n", controller, lp_netbios_name(),
938 ipc_domain, ipc_username));
940 if (NT_STATUS_IS_OK(cli_session_setup(
942 ipc_password, strlen(ipc_password)+1,
943 ipc_password, strlen(ipc_password)+1,
945 /* Successful logon with given username. */
946 result = cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
947 if (!NT_STATUS_IS_OK(result)) {
950 goto session_setup_done;
952 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
953 ipc_domain, ipc_username ));
959 /* Fall back to anonymous connection, this might fail later */
960 DEBUG(10,("cm_prepare_connection: falling back to anonymous "
961 "connection for DC %s\n",
964 result = cli_session_setup(*cli, "", NULL, 0, NULL, 0, "");
965 if (NT_STATUS_IS_OK(result)) {
966 DEBUG(5, ("Connected anonymously\n"));
967 result = cli_init_creds(*cli, "", "", "");
968 if (!NT_STATUS_IS_OK(result)) {
971 goto session_setup_done;
974 /* We can't session setup */
979 /* cache the server name for later connections */
981 saf_store(domain->name, controller);
982 if (domain->alt_name && (*cli)->use_kerberos) {
983 saf_store(domain->alt_name, controller);
986 winbindd_set_locator_kdc_envs(domain);
988 result = cli_tree_connect(*cli, "IPC$", "IPC", "", 0);
990 if (!NT_STATUS_IS_OK(result)) {
991 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
998 /* set the domain if empty; needed for schannel connections */
999 if ( !(*cli)->domain[0] ) {
1000 result = cli_set_domain((*cli), domain->name);
1001 if (!NT_STATUS_IS_OK(result)) {
1006 result = NT_STATUS_OK;
1010 SAFE_FREE(machine_account);
1011 SAFE_FREE(machine_password);
1012 SAFE_FREE(machine_krb5_principal);
1013 SAFE_FREE(ipc_username);
1014 SAFE_FREE(ipc_domain);
1015 SAFE_FREE(ipc_password);
1017 if (!NT_STATUS_IS_OK(result)) {
1018 winbind_add_failed_connection_entry(domain, controller, result);
1019 if ((*cli) != NULL) {
1028 /*******************************************************************
1029 Add a dcname and sockaddr_storage pair to the end of a dc_name_ip
1032 Keeps the list unique by not adding duplicate entries.
1034 @param[in] mem_ctx talloc memory context to allocate from
1035 @param[in] domain_name domain of the DC
1036 @param[in] dcname name of the DC to add to the list
1037 @param[in] pss Internet address and port pair to add to the list
1038 @param[in,out] dcs array of dc_name_ip structures to add to
1039 @param[in,out] num_dcs number of dcs returned in the dcs array
1040 @return true if the list was added to, false otherwise
1041 *******************************************************************/
1043 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
1044 const char *dcname, struct sockaddr_storage *pss,
1045 struct dc_name_ip **dcs, int *num)
1049 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
1050 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
1054 /* Make sure there's no duplicates in the list */
1055 for (i=0; i<*num; i++)
1057 (struct sockaddr *)(void *)&(*dcs)[i].ss,
1058 (struct sockaddr *)(void *)pss))
1061 *dcs = talloc_realloc(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
1066 fstrcpy((*dcs)[*num].name, dcname);
1067 (*dcs)[*num].ss = *pss;
1072 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
1073 struct sockaddr_storage *pss, uint16 port,
1074 struct sockaddr_storage **addrs, int *num)
1076 *addrs = talloc_realloc(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
1078 if (*addrs == NULL) {
1083 (*addrs)[*num] = *pss;
1084 set_sockaddr_port((struct sockaddr *)&(*addrs)[*num], port);
1090 /*******************************************************************
1091 convert an ip to a name
1092 *******************************************************************/
1094 static bool dcip_to_name(TALLOC_CTX *mem_ctx,
1095 const struct winbindd_domain *domain,
1096 struct sockaddr_storage *pss,
1099 struct ip_service ip_list;
1100 uint32_t nt_version = NETLOGON_NT_VERSION_1;
1102 const char *dc_name;
1108 /* For active directory servers, try to get the ldap server name.
1109 None of these failures should be considered critical for now */
1111 if (lp_security() == SEC_ADS) {
1113 ADS_STATUS ads_status;
1114 char addr[INET6_ADDRSTRLEN];
1116 print_sockaddr(addr, sizeof(addr), pss);
1118 ads = ads_init(domain->alt_name, domain->name, addr);
1119 ads->auth.flags |= ADS_AUTH_NO_BIND;
1121 ads_status = ads_connect(ads);
1122 if (ADS_ERR_OK(ads_status)) {
1123 /* We got a cldap packet. */
1124 fstrcpy(name, ads->config.ldap_server_name);
1125 namecache_store(name, 0x20, 1, &ip_list);
1127 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1129 if (domain->primary && (ads->config.flags & NBT_SERVER_KDC)) {
1130 if (ads_closest_dc(ads)) {
1131 char *sitename = sitename_fetch(ads->config.realm);
1133 /* We're going to use this KDC for this realm/domain.
1134 If we are using sites, then force the krb5 libs
1137 create_local_private_krb5_conf_for_domain(domain->alt_name,
1143 SAFE_FREE(sitename);
1145 /* use an off site KDC */
1146 create_local_private_krb5_conf_for_domain(domain->alt_name,
1152 winbindd_set_locator_kdc_envs(domain);
1154 /* Ensure we contact this DC also. */
1155 saf_store( domain->name, name);
1156 saf_store( domain->alt_name, name);
1159 ads_destroy( &ads );
1163 ads_destroy( &ads );
1168 status = nbt_getdc(winbind_messaging_context(), 10, pss, domain->name,
1169 &domain->sid, nt_version, mem_ctx, &nt_version,
1171 if (NT_STATUS_IS_OK(status)) {
1172 fstrcpy(name, dc_name);
1173 namecache_store(name, 0x20, 1, &ip_list);
1177 /* try node status request */
1179 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1180 namecache_store(name, 0x20, 1, &ip_list);
1186 /*******************************************************************
1187 Retrieve a list of IP addresses for domain controllers.
1189 The array is sorted in the preferred connection order.
1191 @param[in] mem_ctx talloc memory context to allocate from
1192 @param[in] domain domain to retrieve DCs for
1193 @param[out] dcs array of dcs that will be returned
1194 @param[out] num_dcs number of dcs returned in the dcs array
1196 *******************************************************************/
1198 static bool get_dcs(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1199 struct dc_name_ip **dcs, int *num_dcs)
1202 struct sockaddr_storage ss;
1203 struct ip_service *ip_list = NULL;
1204 int iplist_size = 0;
1207 enum security_types sec = (enum security_types)lp_security();
1209 is_our_domain = strequal(domain->name, lp_workgroup());
1211 /* If not our domain, get the preferred DC, by asking our primary DC */
1213 && get_dc_name_via_netlogon(domain, dcname, &ss)
1214 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs,
1217 char addr[INET6_ADDRSTRLEN];
1218 print_sockaddr(addr, sizeof(addr), &ss);
1219 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1224 if (sec == SEC_ADS) {
1225 char *sitename = NULL;
1227 /* We need to make sure we know the local site before
1228 doing any DNS queries, as this will restrict the
1229 get_sorted_dc_list() call below to only fetching
1230 DNS records for the correct site. */
1232 /* Find any DC to get the site record.
1233 We deliberately don't care about the
1236 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1238 sitename = sitename_fetch(domain->alt_name);
1241 /* Do the site-specific AD dns lookup first. */
1242 get_sorted_dc_list(domain->alt_name, sitename, &ip_list,
1243 &iplist_size, True);
1245 /* Add ips to the DC array. We don't look up the name
1246 of the DC in this function, but we fill in the char*
1247 of the ip now to make the failed connection cache
1249 for ( i=0; i<iplist_size; i++ ) {
1250 char addr[INET6_ADDRSTRLEN];
1251 print_sockaddr(addr, sizeof(addr),
1253 add_one_dc_unique(mem_ctx,
1262 SAFE_FREE(sitename);
1266 /* Now we add DCs from the main AD DNS lookup. */
1267 get_sorted_dc_list(domain->alt_name, NULL, &ip_list,
1268 &iplist_size, True);
1270 for ( i=0; i<iplist_size; i++ ) {
1271 char addr[INET6_ADDRSTRLEN];
1272 print_sockaddr(addr, sizeof(addr),
1274 add_one_dc_unique(mem_ctx,
1286 /* Try standard netbios queries if no ADS */
1287 if (*num_dcs == 0) {
1288 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size,
1291 for ( i=0; i<iplist_size; i++ ) {
1292 char addr[INET6_ADDRSTRLEN];
1293 print_sockaddr(addr, sizeof(addr),
1295 add_one_dc_unique(mem_ctx,
1310 /*******************************************************************
1311 Find and make a connection to a DC in the given domain.
1313 @param[in] mem_ctx talloc memory context to allocate from
1314 @param[in] domain domain to find a dc in
1315 @param[out] dcname NetBIOS or FQDN of DC that's connected to
1316 @param[out] pss DC Internet address and port
1317 @param[out] fd fd of the open socket connected to the newly found dc
1318 @return true when a DC connection is made, false otherwise
1319 *******************************************************************/
1321 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1322 struct winbindd_domain *domain,
1323 fstring dcname, struct sockaddr_storage *pss, int *fd)
1325 struct dc_name_ip *dcs = NULL;
1328 const char **dcnames = NULL;
1329 int num_dcnames = 0;
1331 struct sockaddr_storage *addrs = NULL;
1342 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1345 for (i=0; i<num_dcs; i++) {
1347 if (!add_string_to_array(mem_ctx, dcs[i].name,
1348 &dcnames, &num_dcnames)) {
1351 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, TCP_SMB_PORT,
1352 &addrs, &num_addrs)) {
1357 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1360 if ((addrs == NULL) || (dcnames == NULL))
1363 status = smbsock_any_connect(addrs, dcnames, NULL, NULL, NULL,
1364 num_addrs, 0, 10, fd, &fd_index, NULL);
1365 if (!NT_STATUS_IS_OK(status)) {
1366 for (i=0; i<num_dcs; i++) {
1367 char ab[INET6_ADDRSTRLEN];
1368 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1369 DEBUG(10, ("find_new_dc: smbsock_any_connect failed for "
1370 "domain %s address %s. Error was %s\n",
1371 domain->name, ab, nt_errstr(status) ));
1372 winbind_add_failed_connection_entry(domain,
1373 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1378 *pss = addrs[fd_index];
1380 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1381 /* Ok, we've got a name for the DC */
1382 fstrcpy(dcname, dcnames[fd_index]);
1386 /* Try to figure out the name */
1387 if (dcip_to_name(mem_ctx, domain, pss, dcname)) {
1391 /* We can not continue without the DC's name */
1392 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1393 NT_STATUS_UNSUCCESSFUL);
1395 /* Throw away all arrays as we're doing this again. */
1399 TALLOC_FREE(dcnames);
1411 static char *current_dc_key(TALLOC_CTX *mem_ctx, const char *domain_name)
1413 return talloc_asprintf_strupper_m(mem_ctx, "CURRENT_DCNAME/%s",
1417 static void store_current_dc_in_gencache(const char *domain_name,
1418 const char *dc_name,
1419 struct cli_state *cli)
1421 char addr[INET6_ADDRSTRLEN];
1425 if (!cli_state_is_connected(cli)) {
1429 print_sockaddr(addr, sizeof(addr),
1430 smbXcli_conn_remote_sockaddr(cli->conn));
1432 key = current_dc_key(talloc_tos(), domain_name);
1437 value = talloc_asprintf(talloc_tos(), "%s %s", addr, dc_name);
1438 if (value == NULL) {
1442 gencache_set(key, value, 0x7fffffff);
1448 bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
1449 const char *domain_name,
1450 char **p_dc_name, char **p_dc_ip)
1452 char *key, *value, *p;
1454 char *dc_name = NULL;
1457 key = current_dc_key(talloc_tos(), domain_name);
1461 if (!gencache_get(key, &value, NULL)) {
1464 p = strchr(value, ' ');
1468 dc_ip = talloc_strndup(mem_ctx, value, p - value);
1469 if (dc_ip == NULL) {
1472 dc_name = talloc_strdup(mem_ctx, p+1);
1473 if (dc_name == NULL) {
1477 if (p_dc_ip != NULL) {
1481 if (p_dc_name != NULL) {
1482 *p_dc_name = dc_name;
1487 TALLOC_FREE(dc_name);
1493 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1494 struct winbindd_cm_conn *new_conn)
1496 TALLOC_CTX *mem_ctx;
1498 char *saf_servername = saf_fetch( domain->name );
1501 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1502 SAFE_FREE(saf_servername);
1503 set_domain_offline(domain);
1504 return NT_STATUS_NO_MEMORY;
1507 /* we have to check the server affinity cache here since
1508 later we select a DC based on response time and not preference */
1510 /* Check the negative connection cache
1511 before talking to it. It going down may have
1512 triggered the reconnection. */
1514 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1516 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1517 saf_servername, domain->name ));
1519 /* convert an ip address to a name */
1520 if (is_ipaddress( saf_servername ) ) {
1522 struct sockaddr_storage ss;
1524 if (!interpret_string_addr(&ss, saf_servername,
1526 return NT_STATUS_UNSUCCESSFUL;
1528 if (dcip_to_name(mem_ctx, domain, &ss, saf_name )) {
1529 strlcpy(domain->dcname, saf_name, sizeof(domain->dcname));
1531 winbind_add_failed_connection_entry(
1532 domain, saf_servername,
1533 NT_STATUS_UNSUCCESSFUL);
1536 fstrcpy( domain->dcname, saf_servername );
1539 SAFE_FREE( saf_servername );
1542 for (retries = 0; retries < 3; retries++) {
1546 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1548 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1549 domain->dcname, domain->name ));
1552 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1553 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20, true)))
1557 status = smbsock_connect(&domain->dcaddr, 0,
1560 if (!NT_STATUS_IS_OK(status)) {
1566 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1568 /* This is the one place where we will
1569 set the global winbindd offline state
1570 to true, if a "WINBINDD_OFFLINE" entry
1571 is found in the winbindd cache. */
1572 set_global_winbindd_state_offline();
1576 new_conn->cli = NULL;
1578 result = cm_prepare_connection(domain, fd, domain->dcname,
1579 &new_conn->cli, &retry);
1585 if (NT_STATUS_IS_OK(result)) {
1587 winbindd_set_locator_kdc_envs(domain);
1589 if (domain->online == False) {
1590 /* We're changing state from offline to online. */
1591 set_global_winbindd_state_online();
1593 set_domain_online(domain);
1596 * Much as I hate global state, this seems to be the point
1597 * where we can be certain that we have a proper connection to
1598 * a DC. wbinfo --dc-info needs that information, store it in
1599 * gencache with a looong timeout. This will need revisiting
1600 * once we start to connect to multiple DCs, wbcDcInfo is
1601 * already prepared for that.
1603 store_current_dc_in_gencache(domain->name, domain->dcname,
1606 /* Ensure we setup the retry handler. */
1607 set_domain_offline(domain);
1610 talloc_destroy(mem_ctx);
1614 /* Close down all open pipes on a connection. */
1616 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1620 /* We're closing down a possibly dead
1621 connection. Don't have impossibly long (10s) timeouts. */
1624 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1627 if (conn->samr_pipe != NULL) {
1628 if (is_valid_policy_hnd(&conn->sam_connect_handle)) {
1629 dcerpc_samr_Close(conn->samr_pipe->binding_handle,
1631 &conn->sam_connect_handle,
1634 TALLOC_FREE(conn->samr_pipe);
1635 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1637 cli_set_timeout(conn->cli, 500);
1641 if (conn->lsa_pipe != NULL) {
1642 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1643 dcerpc_lsa_Close(conn->lsa_pipe->binding_handle,
1648 TALLOC_FREE(conn->lsa_pipe);
1649 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1651 cli_set_timeout(conn->cli, 500);
1655 if (conn->lsa_pipe_tcp != NULL) {
1656 if (is_valid_policy_hnd(&conn->lsa_policy)) {
1657 dcerpc_lsa_Close(conn->lsa_pipe_tcp->binding_handle,
1662 TALLOC_FREE(conn->lsa_pipe_tcp);
1663 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1665 cli_set_timeout(conn->cli, 500);
1669 if (conn->netlogon_pipe != NULL) {
1670 TALLOC_FREE(conn->netlogon_pipe);
1671 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1673 cli_set_timeout(conn->cli, 500);
1678 cli_shutdown(conn->cli);
1684 void close_conns_after_fork(void)
1686 struct winbindd_domain *domain;
1687 struct winbindd_cli_state *cli_state;
1689 for (domain = domain_list(); domain; domain = domain->next) {
1691 * first close the low level SMB TCP connection
1692 * so that we don't generate any SMBclose
1693 * requests in invalidate_cm_connection()
1695 if (cli_state_is_connected(domain->conn.cli)) {
1696 smbXcli_conn_disconnect(domain->conn.cli->conn, NT_STATUS_OK);
1699 invalidate_cm_connection(&domain->conn);
1702 for (cli_state = winbindd_client_list();
1704 cli_state = cli_state->next) {
1705 if (cli_state->sock >= 0) {
1706 close(cli_state->sock);
1707 cli_state->sock = -1;
1712 static bool connection_ok(struct winbindd_domain *domain)
1716 ok = cli_state_is_connected(domain->conn.cli);
1718 DEBUG(3, ("connection_ok: Connection to %s for domain %s is not connected\n",
1719 domain->dcname, domain->name));
1723 if (domain->online == False) {
1724 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1731 /* Initialize a new connection up to the RPC BIND.
1732 Bypass online status check so always does network calls. */
1734 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1738 /* Internal connections never use the network. */
1739 if (domain->internal) {
1740 domain->initialized = True;
1741 return NT_STATUS_OK;
1744 if (connection_ok(domain)) {
1745 if (!domain->initialized) {
1746 set_dc_type_and_flags(domain);
1748 return NT_STATUS_OK;
1751 invalidate_cm_connection(&domain->conn);
1753 result = cm_open_connection(domain, &domain->conn);
1755 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1756 set_dc_type_and_flags(domain);
1762 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1764 if (domain->internal) {
1765 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1768 if (domain->initialized && !domain->online) {
1769 /* We check for online status elsewhere. */
1770 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1773 return init_dc_connection_network(domain);
1776 static NTSTATUS init_dc_connection_rpc(struct winbindd_domain *domain)
1780 status = init_dc_connection(domain);
1781 if (!NT_STATUS_IS_OK(status)) {
1785 if (!domain->internal && domain->conn.cli == NULL) {
1786 /* happens for trusted domains without inbound trust */
1787 return NT_STATUS_TRUSTED_DOMAIN_FAILURE;
1790 return NT_STATUS_OK;
1793 /******************************************************************************
1794 Set the trust flags (direction and forest location) for a domain
1795 ******************************************************************************/
1797 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1799 struct winbindd_domain *our_domain;
1800 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1802 struct netr_DomainTrustList trusts;
1804 uint32 flags = (NETR_TRUST_FLAG_IN_FOREST |
1805 NETR_TRUST_FLAG_OUTBOUND |
1806 NETR_TRUST_FLAG_INBOUND);
1807 struct rpc_pipe_client *cli;
1808 TALLOC_CTX *mem_ctx = NULL;
1809 struct dcerpc_binding_handle *b;
1811 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1813 /* Our primary domain doesn't need to worry about trust flags.
1814 Force it to go through the network setup */
1815 if ( domain->primary ) {
1819 our_domain = find_our_domain();
1821 if ( !connection_ok(our_domain) ) {
1822 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1826 /* This won't work unless our domain is AD */
1828 if ( !our_domain->active_directory ) {
1832 /* Use DsEnumerateDomainTrusts to get us the trust direction
1835 result = cm_connect_netlogon(our_domain, &cli);
1837 if (!NT_STATUS_IS_OK(result)) {
1838 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1839 "a connection to %s for PIPE_NETLOGON (%s)\n",
1840 domain->name, nt_errstr(result)));
1844 b = cli->binding_handle;
1846 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1847 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1851 result = dcerpc_netr_DsrEnumerateDomainTrusts(b, mem_ctx,
1856 if (!NT_STATUS_IS_OK(result)) {
1857 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1858 "failed to query trusted domain list: %s\n",
1859 nt_errstr(result)));
1860 talloc_destroy(mem_ctx);
1863 if (!W_ERROR_IS_OK(werr)) {
1864 DEBUG(0,("set_dc_type_and_flags_trustinfo: "
1865 "failed to query trusted domain list: %s\n",
1867 talloc_destroy(mem_ctx);
1871 /* Now find the domain name and get the flags */
1873 for ( i=0; i<trusts.count; i++ ) {
1874 if ( strequal( domain->name, trusts.array[i].netbios_name) ) {
1875 domain->domain_flags = trusts.array[i].trust_flags;
1876 domain->domain_type = trusts.array[i].trust_type;
1877 domain->domain_trust_attribs = trusts.array[i].trust_attributes;
1879 if ( domain->domain_type == NETR_TRUST_TYPE_UPLEVEL )
1880 domain->active_directory = True;
1882 /* This flag is only set if the domain is *our*
1883 primary domain and the primary domain is in
1886 domain->native_mode = (domain->domain_flags & NETR_TRUST_FLAG_NATIVE);
1888 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1889 "native mode.\n", domain->name,
1890 domain->native_mode ? "" : "NOT "));
1892 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1893 "running active directory.\n", domain->name,
1894 domain->active_directory ? "" : "NOT "));
1896 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1897 domain->can_do_validation6 = domain->active_directory;
1899 domain->initialized = True;
1905 talloc_destroy( mem_ctx );
1907 return domain->initialized;
1910 /******************************************************************************
1911 We can 'sense' certain things about the DC by it's replies to certain
1914 This tells us if this particular remote server is Active Directory, and if it
1916 ******************************************************************************/
1918 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1920 NTSTATUS status, result;
1922 TALLOC_CTX *mem_ctx = NULL;
1923 struct rpc_pipe_client *cli = NULL;
1924 struct policy_handle pol;
1925 union dssetup_DsRoleInfo info;
1926 union lsa_PolicyInformation *lsa_info = NULL;
1928 if (!connection_ok(domain)) {
1932 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1935 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1939 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1941 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1942 &ndr_table_dssetup.syntax_id,
1945 if (!NT_STATUS_IS_OK(status)) {
1946 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1947 "PI_DSSETUP on domain %s: (%s)\n",
1948 domain->name, nt_errstr(status)));
1950 /* if this is just a non-AD domain we need to continue
1951 * identifying so that we can in the end return with
1952 * domain->initialized = True - gd */
1957 status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(cli->binding_handle, mem_ctx,
1958 DS_ROLE_BASIC_INFORMATION,
1963 if (NT_STATUS_IS_OK(status)) {
1964 result = werror_to_ntstatus(werr);
1966 if (!NT_STATUS_IS_OK(status)) {
1967 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1968 "on domain %s failed: (%s)\n",
1969 domain->name, nt_errstr(status)));
1971 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1972 * every opcode on the DSSETUP pipe, continue with
1973 * no_dssetup mode here as well to get domain->initialized
1976 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
1980 TALLOC_FREE(mem_ctx);
1984 if ((info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING) &&
1985 !(info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE)) {
1986 domain->native_mode = True;
1988 domain->native_mode = False;
1992 status = cli_rpc_pipe_open_noauth(domain->conn.cli,
1993 &ndr_table_lsarpc.syntax_id, &cli);
1995 if (!NT_STATUS_IS_OK(status)) {
1996 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1997 "PI_LSARPC on domain %s: (%s)\n",
1998 domain->name, nt_errstr(status)));
2000 TALLOC_FREE(mem_ctx);
2004 status = rpccli_lsa_open_policy2(cli, mem_ctx, True,
2005 SEC_FLAG_MAXIMUM_ALLOWED, &pol);
2007 if (NT_STATUS_IS_OK(status)) {
2008 /* This particular query is exactly what Win2k clients use
2009 to determine that the DC is active directory */
2010 status = dcerpc_lsa_QueryInfoPolicy2(cli->binding_handle, mem_ctx,
2012 LSA_POLICY_INFO_DNS,
2017 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2018 domain->active_directory = True;
2020 if (lsa_info->dns.name.string) {
2021 fstrcpy(domain->name, lsa_info->dns.name.string);
2024 if (lsa_info->dns.dns_domain.string) {
2025 fstrcpy(domain->alt_name,
2026 lsa_info->dns.dns_domain.string);
2029 /* See if we can set some domain trust flags about
2032 if (lsa_info->dns.dns_forest.string) {
2033 fstrcpy(domain->forest_name,
2034 lsa_info->dns.dns_forest.string);
2036 if (strequal(domain->forest_name, domain->alt_name)) {
2037 domain->domain_flags |= NETR_TRUST_FLAG_TREEROOT;
2041 if (lsa_info->dns.sid) {
2042 sid_copy(&domain->sid, lsa_info->dns.sid);
2045 domain->active_directory = False;
2047 status = rpccli_lsa_open_policy(cli, mem_ctx, True,
2048 SEC_FLAG_MAXIMUM_ALLOWED,
2051 if (!NT_STATUS_IS_OK(status)) {
2055 status = dcerpc_lsa_QueryInfoPolicy(cli->binding_handle, mem_ctx,
2057 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
2060 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2062 if (lsa_info->account_domain.name.string) {
2063 fstrcpy(domain->name,
2064 lsa_info->account_domain.name.string);
2067 if (lsa_info->account_domain.sid) {
2068 sid_copy(&domain->sid, lsa_info->account_domain.sid);
2074 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
2075 domain->name, domain->native_mode ? "" : "NOT "));
2077 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
2078 domain->name, domain->active_directory ? "" : "NOT "));
2080 domain->can_do_ncacn_ip_tcp = domain->active_directory;
2081 domain->can_do_validation6 = domain->active_directory;
2085 TALLOC_FREE(mem_ctx);
2087 domain->initialized = True;
2090 /**********************************************************************
2091 Set the domain_flags (trust attributes, domain operating modes, etc...
2092 ***********************************************************************/
2094 static void set_dc_type_and_flags( struct winbindd_domain *domain )
2096 /* we always have to contact our primary domain */
2098 if ( domain->primary ) {
2099 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
2100 "primary domain\n"));
2101 set_dc_type_and_flags_connect( domain );
2105 /* Use our DC to get the information if possible */
2107 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
2108 /* Otherwise, fallback to contacting the
2110 set_dc_type_and_flags_connect( domain );
2118 /**********************************************************************
2119 ***********************************************************************/
2121 static NTSTATUS cm_get_schannel_creds(struct winbindd_domain *domain,
2122 struct netlogon_creds_CredentialState **ppdc)
2124 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2125 struct rpc_pipe_client *netlogon_pipe;
2127 if (lp_client_schannel() == False) {
2128 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2131 result = cm_connect_netlogon(domain, &netlogon_pipe);
2132 if (!NT_STATUS_IS_OK(result)) {
2136 /* Return a pointer to the struct netlogon_creds_CredentialState from the
2139 if (!domain->conn.netlogon_pipe->dc) {
2140 return NT_STATUS_INTERNAL_ERROR; /* This shouldn't happen. */
2143 *ppdc = domain->conn.netlogon_pipe->dc;
2144 return NT_STATUS_OK;
2147 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2148 struct rpc_pipe_client **cli, struct policy_handle *sam_handle)
2150 struct winbindd_cm_conn *conn;
2151 NTSTATUS status, result;
2152 struct netlogon_creds_CredentialState *p_creds;
2153 char *machine_password = NULL;
2154 char *machine_account = NULL;
2155 char *domain_name = NULL;
2157 if (sid_check_is_our_sam(&domain->sid)) {
2158 return open_internal_samr_conn(mem_ctx, domain, cli, sam_handle);
2161 status = init_dc_connection_rpc(domain);
2162 if (!NT_STATUS_IS_OK(status)) {
2166 conn = &domain->conn;
2168 if (rpccli_is_connected(conn->samr_pipe)) {
2172 TALLOC_FREE(conn->samr_pipe);
2175 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
2176 * sign and sealed pipe using the machine account password by
2177 * preference. If we can't - try schannel, if that fails, try
2181 if ((conn->cli->user_name[0] == '\0') ||
2182 (conn->cli->domain[0] == '\0') ||
2183 (conn->cli->password == NULL || conn->cli->password[0] == '\0'))
2185 status = get_trust_creds(domain, &machine_password,
2186 &machine_account, NULL);
2187 if (!NT_STATUS_IS_OK(status)) {
2188 DEBUG(10, ("cm_connect_sam: No no user available for "
2189 "domain %s, trying schannel\n", conn->cli->domain));
2192 domain_name = domain->name;
2194 machine_password = SMB_STRDUP(conn->cli->password);
2195 machine_account = SMB_STRDUP(conn->cli->user_name);
2196 domain_name = conn->cli->domain;
2199 if (!machine_password || !machine_account) {
2200 status = NT_STATUS_NO_MEMORY;
2204 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2205 authenticated SAMR pipe with sign & seal. */
2206 status = cli_rpc_pipe_open_spnego(conn->cli,
2210 DCERPC_AUTH_LEVEL_PRIVACY,
2211 smbXcli_conn_remote_name(conn->cli->conn),
2217 if (!NT_STATUS_IS_OK(status)) {
2218 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
2219 "pipe for domain %s using NTLMSSP "
2220 "authenticated pipe: user %s\\%s. Error was "
2221 "%s\n", domain->name, domain_name,
2222 machine_account, nt_errstr(status)));
2226 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
2227 "domain %s using NTLMSSP authenticated "
2228 "pipe: user %s\\%s\n", domain->name,
2229 domain_name, machine_account));
2231 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2232 conn->samr_pipe->desthost,
2233 SEC_FLAG_MAXIMUM_ALLOWED,
2234 &conn->sam_connect_handle,
2236 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2239 if (NT_STATUS_IS_OK(status)) {
2243 DEBUG(10,("cm_connect_sam: ntlmssp-sealed dcerpc_samr_Connect2 "
2244 "failed for domain %s, error was %s. Trying schannel\n",
2245 domain->name, nt_errstr(status) ));
2246 TALLOC_FREE(conn->samr_pipe);
2250 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2252 status = cm_get_schannel_creds(domain, &p_creds);
2253 if (!NT_STATUS_IS_OK(status)) {
2254 /* If this call fails - conn->cli can now be NULL ! */
2255 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2256 "for domain %s (error %s), trying anon\n",
2258 nt_errstr(status) ));
2261 status = cli_rpc_pipe_open_schannel_with_key
2262 (conn->cli, &ndr_table_samr.syntax_id, NCACN_NP,
2263 DCERPC_AUTH_LEVEL_PRIVACY,
2264 domain->name, &p_creds, &conn->samr_pipe);
2266 if (!NT_STATUS_IS_OK(status)) {
2267 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2268 "domain %s using schannel. Error was %s\n",
2269 domain->name, nt_errstr(status) ));
2272 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2273 "schannel.\n", domain->name ));
2275 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2276 conn->samr_pipe->desthost,
2277 SEC_FLAG_MAXIMUM_ALLOWED,
2278 &conn->sam_connect_handle,
2280 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
2283 if (NT_STATUS_IS_OK(status)) {
2286 DEBUG(10,("cm_connect_sam: schannel-sealed dcerpc_samr_Connect2 failed "
2287 "for domain %s, error was %s. Trying anonymous\n",
2288 domain->name, nt_errstr(status) ));
2289 TALLOC_FREE(conn->samr_pipe);
2293 /* Finally fall back to anonymous. */
2294 status = cli_rpc_pipe_open_noauth(conn->cli, &ndr_table_samr.syntax_id,
2297 if (!NT_STATUS_IS_OK(status)) {
2301 status = dcerpc_samr_Connect2(conn->samr_pipe->binding_handle, mem_ctx,
2302 conn->samr_pipe->desthost,
2303 SEC_FLAG_MAXIMUM_ALLOWED,
2304 &conn->sam_connect_handle,
2306 if (!NT_STATUS_IS_OK(status)) {
2307 DEBUG(10,("cm_connect_sam: rpccli_samr_Connect2 failed "
2308 "for domain %s Error was %s\n",
2309 domain->name, nt_errstr(status) ));
2312 if (!NT_STATUS_IS_OK(result)) {
2314 DEBUG(10,("cm_connect_sam: dcerpc_samr_Connect2 failed "
2315 "for domain %s Error was %s\n",
2316 domain->name, nt_errstr(result)));
2321 status = dcerpc_samr_OpenDomain(conn->samr_pipe->binding_handle,
2323 &conn->sam_connect_handle,
2324 SEC_FLAG_MAXIMUM_ALLOWED,
2326 &conn->sam_domain_handle,
2328 if (!NT_STATUS_IS_OK(status)) {
2335 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
2337 * if we got access denied, we might just have no access rights
2338 * to talk to the remote samr server server (e.g. when we are a
2339 * PDC and we are connecting a w2k8 pdc via an interdomain
2340 * trust). In that case do not invalidate the whole connection
2343 TALLOC_FREE(conn->samr_pipe);
2344 ZERO_STRUCT(conn->sam_domain_handle);
2346 } else if (!NT_STATUS_IS_OK(status)) {
2347 invalidate_cm_connection(conn);
2351 *cli = conn->samr_pipe;
2352 *sam_handle = conn->sam_domain_handle;
2353 SAFE_FREE(machine_password);
2354 SAFE_FREE(machine_account);
2358 /**********************************************************************
2359 open an schanneld ncacn_ip_tcp connection to LSA
2360 ***********************************************************************/
2362 NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
2363 TALLOC_CTX *mem_ctx,
2364 struct rpc_pipe_client **cli)
2366 struct winbindd_cm_conn *conn;
2367 struct netlogon_creds_CredentialState *creds;
2370 DEBUG(10,("cm_connect_lsa_tcp\n"));
2372 status = init_dc_connection_rpc(domain);
2373 if (!NT_STATUS_IS_OK(status)) {
2377 conn = &domain->conn;
2379 if (conn->lsa_pipe_tcp &&
2380 conn->lsa_pipe_tcp->transport->transport == NCACN_IP_TCP &&
2381 conn->lsa_pipe_tcp->auth->auth_level == DCERPC_AUTH_LEVEL_PRIVACY &&
2382 rpccli_is_connected(conn->lsa_pipe_tcp)) {
2386 TALLOC_FREE(conn->lsa_pipe_tcp);
2388 status = cm_get_schannel_creds(domain, &creds);
2389 if (!NT_STATUS_IS_OK(status)) {
2393 status = cli_rpc_pipe_open_schannel_with_key(conn->cli,
2394 &ndr_table_lsarpc.syntax_id,
2396 DCERPC_AUTH_LEVEL_PRIVACY,
2399 &conn->lsa_pipe_tcp);
2400 if (!NT_STATUS_IS_OK(status)) {
2401 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key failed: %s\n",
2402 nt_errstr(status)));
2407 if (!NT_STATUS_IS_OK(status)) {
2408 TALLOC_FREE(conn->lsa_pipe_tcp);
2412 *cli = conn->lsa_pipe_tcp;
2417 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2418 struct rpc_pipe_client **cli, struct policy_handle *lsa_policy)
2420 struct winbindd_cm_conn *conn;
2421 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2422 struct netlogon_creds_CredentialState *p_creds;
2424 result = init_dc_connection_rpc(domain);
2425 if (!NT_STATUS_IS_OK(result))
2428 conn = &domain->conn;
2430 if (rpccli_is_connected(conn->lsa_pipe)) {
2434 TALLOC_FREE(conn->lsa_pipe);
2436 if ((conn->cli->user_name[0] == '\0') ||
2437 (conn->cli->domain[0] == '\0') ||
2438 (conn->cli->password == NULL || conn->cli->password[0] == '\0')) {
2439 DEBUG(10, ("cm_connect_lsa: No no user available for "
2440 "domain %s, trying schannel\n", conn->cli->domain));
2444 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2445 * authenticated LSA pipe with sign & seal. */
2446 result = cli_rpc_pipe_open_spnego
2447 (conn->cli, &ndr_table_lsarpc, NCACN_NP,
2449 DCERPC_AUTH_LEVEL_PRIVACY,
2450 smbXcli_conn_remote_name(conn->cli->conn),
2451 conn->cli->domain, conn->cli->user_name, conn->cli->password,
2454 if (!NT_STATUS_IS_OK(result)) {
2455 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2456 "domain %s using NTLMSSP authenticated pipe: user "
2457 "%s\\%s. Error was %s. Trying schannel.\n",
2458 domain->name, conn->cli->domain,
2459 conn->cli->user_name, nt_errstr(result)));
2463 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2464 "NTLMSSP authenticated pipe: user %s\\%s\n",
2465 domain->name, conn->cli->domain, conn->cli->user_name ));
2467 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2468 SEC_FLAG_MAXIMUM_ALLOWED,
2470 if (NT_STATUS_IS_OK(result)) {
2474 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2477 TALLOC_FREE(conn->lsa_pipe);
2481 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2483 result = cm_get_schannel_creds(domain, &p_creds);
2484 if (!NT_STATUS_IS_OK(result)) {
2485 /* If this call fails - conn->cli can now be NULL ! */
2486 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2487 "for domain %s (error %s), trying anon\n",
2489 nt_errstr(result) ));
2492 result = cli_rpc_pipe_open_schannel_with_key
2493 (conn->cli, &ndr_table_lsarpc.syntax_id, NCACN_NP,
2494 DCERPC_AUTH_LEVEL_PRIVACY,
2495 domain->name, &p_creds, &conn->lsa_pipe);
2497 if (!NT_STATUS_IS_OK(result)) {
2498 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2499 "domain %s using schannel. Error was %s\n",
2500 domain->name, nt_errstr(result) ));
2503 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2504 "schannel.\n", domain->name ));
2506 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2507 SEC_FLAG_MAXIMUM_ALLOWED,
2509 if (NT_STATUS_IS_OK(result)) {
2513 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2516 TALLOC_FREE(conn->lsa_pipe);
2520 result = cli_rpc_pipe_open_noauth(conn->cli,
2521 &ndr_table_lsarpc.syntax_id,
2523 if (!NT_STATUS_IS_OK(result)) {
2524 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2528 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2529 SEC_FLAG_MAXIMUM_ALLOWED,
2532 if (!NT_STATUS_IS_OK(result)) {
2533 invalidate_cm_connection(conn);
2537 *cli = conn->lsa_pipe;
2538 *lsa_policy = conn->lsa_policy;
2542 /****************************************************************************
2543 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2544 session key stored in conn->netlogon_pipe->dc->sess_key.
2545 ****************************************************************************/
2547 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2548 struct rpc_pipe_client **cli)
2550 struct winbindd_cm_conn *conn;
2553 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS | NETLOGON_NEG_SUPPORTS_AES;
2555 enum netr_SchannelType sec_chan_type;
2556 const char *account_name;
2557 struct rpc_pipe_client *netlogon_pipe = NULL;
2561 result = init_dc_connection_rpc(domain);
2562 if (!NT_STATUS_IS_OK(result)) {
2566 conn = &domain->conn;
2568 if (rpccli_is_connected(conn->netlogon_pipe)) {
2569 *cli = conn->netlogon_pipe;
2570 return NT_STATUS_OK;
2573 TALLOC_FREE(conn->netlogon_pipe);
2575 result = cli_rpc_pipe_open_noauth(conn->cli,
2576 &ndr_table_netlogon.syntax_id,
2578 if (!NT_STATUS_IS_OK(result)) {
2582 if ((!IS_DC) && (!domain->primary)) {
2583 /* Clear the schannel request bit and drop down */
2584 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2588 if (lp_client_schannel() != False) {
2589 neg_flags |= NETLOGON_NEG_SCHANNEL;
2592 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2595 TALLOC_FREE(netlogon_pipe);
2596 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2599 result = rpccli_netlogon_setup_creds(
2601 domain->dcname, /* server name. */
2602 domain->name, /* domain name */
2603 lp_netbios_name(), /* client name */
2604 account_name, /* machine account */
2605 mach_pwd, /* machine password */
2606 sec_chan_type, /* from get_trust_pw */
2609 if (!NT_STATUS_IS_OK(result)) {
2610 TALLOC_FREE(netlogon_pipe);
2614 if ((lp_client_schannel() == True) &&
2615 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2616 DEBUG(3, ("Server did not offer schannel\n"));
2617 TALLOC_FREE(netlogon_pipe);
2618 return NT_STATUS_ACCESS_DENIED;
2622 if ((lp_client_schannel() == False) ||
2623 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2625 * NetSamLogonEx only works for schannel
2627 domain->can_do_samlogon_ex = False;
2629 /* We're done - just keep the existing connection to NETLOGON
2631 conn->netlogon_pipe = netlogon_pipe;
2632 *cli = conn->netlogon_pipe;
2633 return NT_STATUS_OK;
2636 /* Using the credentials from the first pipe, open a signed and sealed
2637 second netlogon pipe. The session key is stored in the schannel
2638 part of the new pipe auth struct.
2641 result = cli_rpc_pipe_open_schannel_with_key(
2642 conn->cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
2643 DCERPC_AUTH_LEVEL_PRIVACY, domain->name, &netlogon_pipe->dc,
2644 &conn->netlogon_pipe);
2646 /* We can now close the initial netlogon pipe. */
2647 TALLOC_FREE(netlogon_pipe);
2649 if (!NT_STATUS_IS_OK(result)) {
2650 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2651 "was %s\n", nt_errstr(result)));
2653 invalidate_cm_connection(conn);
2658 * Always try netr_LogonSamLogonEx. We will fall back for NT4
2659 * which gives DCERPC_FAULT_OP_RNG_ERROR (function not
2660 * supported). We used to only try SamLogonEx for AD, but
2661 * Samba DCs can also do it. And because we don't distinguish
2662 * between Samba and NT4, always try it once.
2664 domain->can_do_samlogon_ex = true;
2666 *cli = conn->netlogon_pipe;
2667 return NT_STATUS_OK;
2670 void winbind_msg_ip_dropped(struct messaging_context *msg_ctx,
2673 struct server_id server_id,
2676 struct winbindd_domain *domain;
2677 char *freeit = NULL;
2681 || (data->data == NULL)
2682 || (data->length == 0)
2683 || (data->data[data->length-1] != '\0')) {
2684 DEBUG(1, ("invalid msg_ip_dropped message: not a valid "
2689 addr = (char *)data->data;
2690 DEBUG(10, ("IP %s dropped\n", addr));
2692 if (!is_ipaddress(addr)) {
2695 * Some code sends us ip addresses with the /netmask
2698 slash = strchr(addr, '/');
2699 if (slash == NULL) {
2700 DEBUG(1, ("invalid msg_ip_dropped message: %s",
2704 freeit = talloc_strndup(talloc_tos(), addr, slash-addr);
2705 if (freeit == NULL) {
2706 DEBUG(1, ("talloc failed\n"));
2710 DEBUG(10, ("Stripped /netmask to IP %s\n", addr));
2713 for (domain = domain_list(); domain != NULL; domain = domain->next) {
2714 char sockaddr[INET6_ADDRSTRLEN];
2716 if (!cli_state_is_connected(domain->conn.cli)) {
2720 print_sockaddr(sockaddr, sizeof(sockaddr),
2721 smbXcli_conn_local_sockaddr(domain->conn.cli->conn));
2723 if (strequal(sockaddr, addr)) {
2724 smbXcli_conn_disconnect(domain->conn.cli->conn, NT_STATUS_OK);
2727 TALLOC_FREE(freeit);