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
65 #define DBGC_CLASS DBGC_WINBIND
69 struct sockaddr_storage ss;
72 extern struct winbindd_methods reconnect_methods;
73 extern bool override_logfile;
75 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
76 static void set_dc_type_and_flags( struct winbindd_domain *domain );
77 static bool get_dcs(TALLOC_CTX *mem_ctx, const struct winbindd_domain *domain,
78 struct dc_name_ip **dcs, int *num_dcs);
80 /****************************************************************
81 Child failed to find DC's. Reschedule check.
82 ****************************************************************/
84 static void msg_failed_to_go_online(struct messaging_context *msg,
87 struct server_id server_id,
90 struct winbindd_domain *domain;
91 const char *domainname = (const char *)data->data;
93 if (data->data == NULL || data->length == 0) {
97 DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
99 for (domain = domain_list(); domain; domain = domain->next) {
100 if (domain->internal) {
104 if (strequal(domain->name, domainname)) {
105 if (domain->online) {
106 /* We're already online, ignore. */
107 DEBUG(5,("msg_fail_to_go_online: domain %s "
108 "already online.\n", domainname));
112 /* Reschedule the online check. */
113 set_domain_offline(domain);
119 /****************************************************************
120 Actually cause a reconnect from a message.
121 ****************************************************************/
123 static void msg_try_to_go_online(struct messaging_context *msg,
126 struct server_id server_id,
129 struct winbindd_domain *domain;
130 const char *domainname = (const char *)data->data;
132 if (data->data == NULL || data->length == 0) {
136 DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
138 for (domain = domain_list(); domain; domain = domain->next) {
139 if (domain->internal) {
143 if (strequal(domain->name, domainname)) {
145 if (domain->online) {
146 /* We're already online, ignore. */
147 DEBUG(5,("msg_try_to_go_online: domain %s "
148 "already online.\n", domainname));
152 /* This call takes care of setting the online
153 flag to true if we connected, or re-adding
154 the offline handler if false. Bypasses online
155 check so always does network calls. */
157 init_dc_connection_network(domain);
163 /****************************************************************
164 Fork a child to try and contact a DC. Do this as contacting a
165 DC requires blocking lookups and we don't want to block our
167 ****************************************************************/
169 static bool fork_child_dc_connect(struct winbindd_domain *domain)
171 struct dc_name_ip *dcs = NULL;
173 TALLOC_CTX *mem_ctx = NULL;
175 pid_t parent_pid = sys_getpid();
180 child_pid = sys_fork();
182 if (child_pid == -1) {
183 DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
187 if (child_pid != 0) {
189 messaging_register(winbind_messaging_context(), NULL,
190 MSG_WINBIND_TRY_TO_GO_ONLINE,
191 msg_try_to_go_online);
192 messaging_register(winbind_messaging_context(), NULL,
193 MSG_WINBIND_FAILED_TO_GO_ONLINE,
194 msg_failed_to_go_online);
200 /* Leave messages blocked - we will never process one. */
202 /* tdb needs special fork handling */
203 if (tdb_reopen_all(1) == -1) {
204 DEBUG(0,("tdb_reopen_all failed.\n"));
208 close_conns_after_fork();
210 if (!override_logfile) {
212 if (asprintf(&logfile, "%s/log.winbindd-dc-connect", get_dyn_LOGFILEBASE()) > 0) {
213 lp_set_logfile(logfile);
219 mem_ctx = talloc_init("fork_child_dc_connect");
221 DEBUG(0,("talloc_init failed.\n"));
225 if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
226 /* Still offline ? Can't find DC's. */
227 messaging_send_buf(winbind_messaging_context(),
228 pid_to_procid(parent_pid),
229 MSG_WINBIND_FAILED_TO_GO_ONLINE,
230 (uint8 *)domain->name,
231 strlen(domain->name)+1);
235 /* We got a DC. Send a message to our parent to get it to
236 try and do the same. */
238 messaging_send_buf(winbind_messaging_context(),
239 pid_to_procid(parent_pid),
240 MSG_WINBIND_TRY_TO_GO_ONLINE,
241 (uint8 *)domain->name,
242 strlen(domain->name)+1);
246 /****************************************************************
247 Handler triggered if we're offline to try and detect a DC.
248 ****************************************************************/
250 static void check_domain_online_handler(struct event_context *ctx,
251 struct timed_event *te,
252 const struct timeval *now,
255 struct winbindd_domain *domain =
256 (struct winbindd_domain *)private_data;
258 DEBUG(10,("check_domain_online_handler: called for domain "
259 "%s (online = %s)\n", domain->name,
260 domain->online ? "True" : "False" ));
262 TALLOC_FREE(domain->check_online_event);
264 /* Are we still in "startup" mode ? */
266 if (domain->startup && (now->tv_sec > domain->startup_time + 30)) {
267 /* No longer in "startup" mode. */
268 DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
270 domain->startup = False;
273 /* We've been told to stay offline, so stay
276 if (get_global_winbindd_state_offline()) {
277 DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
282 /* Fork a child to test if it can contact a DC.
283 If it can then send ourselves a message to
284 cause a reconnect. */
286 fork_child_dc_connect(domain);
289 /****************************************************************
290 If we're still offline setup the timeout check.
291 ****************************************************************/
293 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
295 int wbc = lp_winbind_cache_time();
297 if (domain->startup) {
298 domain->check_online_timeout = 10;
299 } else if (domain->check_online_timeout < wbc) {
300 domain->check_online_timeout = wbc;
304 /****************************************************************
305 Set domain offline and also add handler to put us back online
307 ****************************************************************/
309 void set_domain_offline(struct winbindd_domain *domain)
311 DEBUG(10,("set_domain_offline: called for domain %s\n",
314 TALLOC_FREE(domain->check_online_event);
316 if (domain->internal) {
317 DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
322 domain->online = False;
324 /* Offline domains are always initialized. They're
325 re-initialized when they go back online. */
327 domain->initialized = True;
329 /* We only add the timeout handler that checks and
330 allows us to go back online when we've not
331 been told to remain offline. */
333 if (get_global_winbindd_state_offline()) {
334 DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
339 /* If we're in statup mode, check again in 10 seconds, not in
340 lp_winbind_cache_time() seconds (which is 5 mins by default). */
342 calc_new_online_timeout_check(domain);
344 domain->check_online_event = event_add_timed(winbind_event_context(),
346 timeval_current_ofs(domain->check_online_timeout,0),
347 "check_domain_online_handler",
348 check_domain_online_handler,
351 /* The above *has* to succeed for winbindd to work. */
352 if (!domain->check_online_event) {
353 smb_panic("set_domain_offline: failed to add online handler");
356 DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
359 /* Send an offline message to the idmap child when our
360 primary domain goes offline */
362 if ( domain->primary ) {
363 struct winbindd_child *idmap = idmap_child();
365 if ( idmap->pid != 0 ) {
366 messaging_send_buf(winbind_messaging_context(),
367 pid_to_procid(idmap->pid),
369 (uint8 *)domain->name,
370 strlen(domain->name)+1);
377 /****************************************************************
378 Set domain online - if allowed.
379 ****************************************************************/
381 static void set_domain_online(struct winbindd_domain *domain)
385 DEBUG(10,("set_domain_online: called for domain %s\n",
388 if (domain->internal) {
389 DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
394 if (get_global_winbindd_state_offline()) {
395 DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
400 winbindd_set_locator_kdc_envs(domain);
402 /* If we are waiting to get a krb5 ticket, trigger immediately. */
404 set_event_dispatch_time(winbind_event_context(),
405 "krb5_ticket_gain_handler", now);
407 /* Ok, we're out of any startup mode now... */
408 domain->startup = False;
410 if (domain->online == False) {
411 /* We were offline - now we're online. We default to
412 using the MS-RPC backend if we started offline,
413 and if we're going online for the first time we
414 should really re-initialize the backends and the
415 checks to see if we're talking to an AD or NT domain.
418 domain->initialized = False;
420 /* 'reconnect_methods' is the MS-RPC backend. */
421 if (domain->backend == &reconnect_methods) {
422 domain->backend = NULL;
426 /* Ensure we have no online timeout checks. */
427 domain->check_online_timeout = 0;
428 TALLOC_FREE(domain->check_online_event);
430 /* Ensure we ignore any pending child messages. */
431 messaging_deregister(winbind_messaging_context(),
432 MSG_WINBIND_TRY_TO_GO_ONLINE, NULL);
433 messaging_deregister(winbind_messaging_context(),
434 MSG_WINBIND_FAILED_TO_GO_ONLINE, NULL);
436 domain->online = True;
438 /* Send an online message to the idmap child when our
439 primary domain comes online */
441 if ( domain->primary ) {
442 struct winbindd_child *idmap = idmap_child();
444 if ( idmap->pid != 0 ) {
445 messaging_send_buf(winbind_messaging_context(),
446 pid_to_procid(idmap->pid),
448 (uint8 *)domain->name,
449 strlen(domain->name)+1);
456 /****************************************************************
457 Requested to set a domain online.
458 ****************************************************************/
460 void set_domain_online_request(struct winbindd_domain *domain)
464 DEBUG(10,("set_domain_online_request: called for domain %s\n",
467 if (get_global_winbindd_state_offline()) {
468 DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
473 /* We've been told it's safe to go online and
474 try and connect to a DC. But I don't believe it
475 because network manager seems to lie.
476 Wait at least 5 seconds. Heuristics suck... */
478 if (!domain->check_online_event) {
479 /* If we've come from being globally offline we
480 don't have a check online event handler set.
481 We need to add one now we're trying to go
484 DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
487 domain->check_online_event = event_add_timed(winbind_event_context(),
489 timeval_current_ofs(5, 0),
490 "check_domain_online_handler",
491 check_domain_online_handler,
494 /* The above *has* to succeed for winbindd to work. */
495 if (!domain->check_online_event) {
496 smb_panic("set_domain_online_request: failed to add online handler");
502 /* Go into "startup" mode again. */
503 domain->startup_time = tev.tv_sec;
504 domain->startup = True;
508 set_event_dispatch_time(winbind_event_context(), "check_domain_online_handler", tev);
511 /****************************************************************
512 Add -ve connection cache entries for domain and realm.
513 ****************************************************************/
515 void winbind_add_failed_connection_entry(const struct winbindd_domain *domain,
519 add_failed_connection_entry(domain->name, server, result);
520 /* If this was the saf name for the last thing we talked to,
522 saf_delete(domain->name);
523 if (*domain->alt_name) {
524 add_failed_connection_entry(domain->alt_name, server, result);
525 saf_delete(domain->alt_name);
527 winbindd_unset_locator_kdc_env(domain);
530 /* Choose between anonymous or authenticated connections. We need to use
531 an authenticated connection if DCs have the RestrictAnonymous registry
532 entry set > 0, or the "Additional restrictions for anonymous
533 connections" set in the win2k Local Security Policy.
535 Caller to free() result in domain, username, password
538 static void cm_get_ipc_userpass(char **username, char **domain, char **password)
540 *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
541 *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
542 *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
544 if (*username && **username) {
546 if (!*domain || !**domain)
547 *domain = smb_xstrdup(lp_workgroup());
549 if (!*password || !**password)
550 *password = smb_xstrdup("");
552 DEBUG(3, ("cm_get_ipc_userpass: Retrieved auth-user from secrets.tdb [%s\\%s]\n",
553 *domain, *username));
556 DEBUG(3, ("cm_get_ipc_userpass: No auth-user defined\n"));
557 *username = smb_xstrdup("");
558 *domain = smb_xstrdup("");
559 *password = smb_xstrdup("");
563 static bool get_dc_name_via_netlogon(const struct winbindd_domain *domain,
565 struct sockaddr_storage *dc_ss)
567 struct winbindd_domain *our_domain = NULL;
568 struct rpc_pipe_client *netlogon_pipe = NULL;
572 unsigned int orig_timeout;
576 /* Hmmmm. We can only open one connection to the NETLOGON pipe at the
583 if (domain->primary) {
587 our_domain = find_our_domain();
589 if ((mem_ctx = talloc_init("get_dc_name_via_netlogon")) == NULL) {
593 result = cm_connect_netlogon(our_domain, &netlogon_pipe);
594 if (!NT_STATUS_IS_OK(result)) {
595 talloc_destroy(mem_ctx);
599 /* This call can take a long time - allow the server to time out.
600 35 seconds should do it. */
602 orig_timeout = cli_set_timeout(netlogon_pipe->cli, 35000);
604 werr = rpccli_netlogon_getanydcname(netlogon_pipe, mem_ctx, our_domain->dcname,
607 /* And restore our original timeout. */
608 cli_set_timeout(netlogon_pipe->cli, orig_timeout);
610 talloc_destroy(mem_ctx);
612 if (!W_ERROR_IS_OK(werr)) {
613 DEBUG(10, ("rpccli_netlogon_getanydcname failed: %s\n",
618 /* cli_netlogon_getanydcname gives us a name with \\ */
629 DEBUG(10, ("rpccli_netlogon_getanydcname returned %s\n", dcname));
631 if (!resolve_name(dcname, dc_ss, 0x20)) {
638 /************************************************************************
639 Given a fd with a just-connected TCP connection to a DC, open a connection
641 ************************************************************************/
643 static NTSTATUS cm_prepare_connection(const struct winbindd_domain *domain,
645 const char *controller,
646 struct cli_state **cli,
649 char *machine_password = NULL;
650 char *machine_krb5_principal = NULL;
651 char *machine_account = NULL;
652 const char *account_name = NULL;
653 char *ipc_username = NULL;
654 char *ipc_domain = NULL;
655 char *ipc_password = NULL;
659 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
661 struct sockaddr peeraddr;
662 socklen_t peeraddr_len;
664 struct sockaddr_in *peeraddr_in = (struct sockaddr_in *)&peeraddr;
666 DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
667 controller, domain->name ));
671 got_mutex = secrets_named_mutex(controller,
672 WINBIND_SERVER_MUTEX_WAIT_TIME);
675 DEBUG(0,("cm_prepare_connection: mutex grab failed for %s\n",
677 result = NT_STATUS_POSSIBLE_DEADLOCK;
681 if ((*cli = cli_initialise()) == NULL) {
682 DEBUG(1, ("Could not cli_initialize\n"));
683 result = NT_STATUS_NO_MEMORY;
687 (*cli)->timeout = 10000; /* 10 seconds */
689 fstrcpy((*cli)->desthost, controller);
690 (*cli)->use_kerberos = True;
692 peeraddr_len = sizeof(peeraddr);
694 if ((getpeername((*cli)->fd, &peeraddr, &peeraddr_len) != 0) ||
695 (peeraddr_len != sizeof(struct sockaddr_in)) ||
696 (peeraddr_in->sin_family != PF_INET))
698 DEBUG(0,("cm_prepare_connection: %s\n", strerror(errno)));
699 result = NT_STATUS_UNSUCCESSFUL;
703 if (ntohs(peeraddr_in->sin_port) == 139) {
704 struct nmb_name calling;
705 struct nmb_name called;
707 make_nmb_name(&calling, global_myname(), 0x0);
708 make_nmb_name(&called, "*SMBSERVER", 0x20);
710 if (!cli_session_request(*cli, &calling, &called)) {
711 DEBUG(8, ("cli_session_request failed for %s\n",
713 result = NT_STATUS_UNSUCCESSFUL;
718 cli_setup_signing_state(*cli, Undefined);
720 if (!cli_negprot(*cli)) {
721 DEBUG(1, ("cli_negprot failed\n"));
722 result = NT_STATUS_UNSUCCESSFUL;
726 if (!is_trusted_domain_situation(domain->name) &&
727 (*cli)->protocol >= PROTOCOL_NT1 &&
728 (*cli)->capabilities & CAP_EXTENDED_SECURITY)
730 ADS_STATUS ads_status;
732 if (!get_trust_pw_clear(domain->name, &machine_password,
733 &account_name, NULL))
735 result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
739 if (asprintf(&machine_account, "%s$", account_name) == -1) {
740 result = NT_STATUS_NO_MEMORY;
744 if (asprintf(&machine_krb5_principal, "%s$@%s", account_name,
747 result = NT_STATUS_NO_MEMORY;
751 if (lp_security() == SEC_ADS) {
753 /* Try a krb5 session */
755 (*cli)->use_kerberos = True;
756 DEBUG(5, ("connecting to %s from %s with kerberos principal "
757 "[%s]\n", controller, global_myname(),
758 machine_krb5_principal));
760 winbindd_set_locator_kdc_envs(domain);
762 ads_status = cli_session_setup_spnego(*cli,
763 machine_krb5_principal,
767 if (!ADS_ERR_OK(ads_status)) {
768 DEBUG(4,("failed kerberos session setup with %s\n",
769 ads_errstr(ads_status)));
772 result = ads_ntstatus(ads_status);
773 if (NT_STATUS_IS_OK(result)) {
774 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
775 cli_init_creds(*cli, machine_account, domain->name, machine_password);
776 goto session_setup_done;
780 /* Fall back to non-kerberos session setup using NTLMSSP SPNEGO with the machine account. */
781 (*cli)->use_kerberos = False;
783 DEBUG(5, ("connecting to %s from %s with username "
784 "[%s]\\[%s]\n", controller, global_myname(),
785 domain->name, machine_account));
787 ads_status = cli_session_setup_spnego(*cli,
791 if (!ADS_ERR_OK(ads_status)) {
792 DEBUG(4, ("authenticated session setup failed with %s\n",
793 ads_errstr(ads_status)));
796 result = ads_ntstatus(ads_status);
797 if (NT_STATUS_IS_OK(result)) {
798 /* Ensure creds are stored for NTLMSSP authenticated pipe access. */
799 cli_init_creds(*cli, machine_account, domain->name, machine_password);
800 goto session_setup_done;
804 /* Fall back to non-kerberos session setup with auth_user */
806 (*cli)->use_kerberos = False;
808 cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
810 if ((((*cli)->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) != 0) &&
811 (strlen(ipc_username) > 0)) {
813 /* Only try authenticated if we have a username */
815 DEBUG(5, ("connecting to %s from %s with username "
816 "[%s]\\[%s]\n", controller, global_myname(),
817 ipc_domain, ipc_username));
819 if (NT_STATUS_IS_OK(cli_session_setup(
821 ipc_password, strlen(ipc_password)+1,
822 ipc_password, strlen(ipc_password)+1,
824 /* Successful logon with given username. */
825 cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
826 goto session_setup_done;
828 DEBUG(4, ("authenticated session setup with user %s\\%s failed.\n",
829 ipc_domain, ipc_username ));
833 /* Fall back to anonymous connection, this might fail later */
835 if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
837 DEBUG(5, ("Connected anonymously\n"));
838 cli_init_creds(*cli, "", "", "");
839 goto session_setup_done;
842 result = cli_nt_error(*cli);
844 if (NT_STATUS_IS_OK(result))
845 result = NT_STATUS_UNSUCCESSFUL;
847 /* We can't session setup */
853 /* cache the server name for later connections */
855 saf_store( domain->name, (*cli)->desthost );
856 if (domain->alt_name && (*cli)->use_kerberos) {
857 saf_store( domain->alt_name, (*cli)->desthost );
860 winbindd_set_locator_kdc_envs(domain);
862 if (!cli_send_tconX(*cli, "IPC$", "IPC", "", 0)) {
864 result = cli_nt_error(*cli);
866 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(result)));
868 if (NT_STATUS_IS_OK(result))
869 result = NT_STATUS_UNSUCCESSFUL;
874 secrets_named_mutex_release(controller);
878 /* set the domain if empty; needed for schannel connections */
879 if ( !*(*cli)->domain ) {
880 fstrcpy( (*cli)->domain, domain->name );
883 result = NT_STATUS_OK;
887 secrets_named_mutex_release(controller);
890 SAFE_FREE(machine_account);
891 SAFE_FREE(machine_password);
892 SAFE_FREE(machine_krb5_principal);
893 SAFE_FREE(ipc_username);
894 SAFE_FREE(ipc_domain);
895 SAFE_FREE(ipc_password);
897 if (!NT_STATUS_IS_OK(result)) {
898 winbind_add_failed_connection_entry(domain, controller, result);
899 if ((*cli) != NULL) {
908 static bool add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
909 const char *dcname, struct sockaddr_storage *pss,
910 struct dc_name_ip **dcs, int *num)
912 if (!NT_STATUS_IS_OK(check_negative_conn_cache(domain_name, dcname))) {
913 DEBUG(10, ("DC %s was in the negative conn cache\n", dcname));
917 *dcs = TALLOC_REALLOC_ARRAY(mem_ctx, *dcs, struct dc_name_ip, (*num)+1);
922 fstrcpy((*dcs)[*num].name, dcname);
923 (*dcs)[*num].ss = *pss;
928 static bool add_sockaddr_to_array(TALLOC_CTX *mem_ctx,
929 struct sockaddr_storage *pss, uint16 port,
930 struct sockaddr_storage **addrs, int *num)
932 *addrs = TALLOC_REALLOC_ARRAY(mem_ctx, *addrs, struct sockaddr_storage, (*num)+1);
934 if (*addrs == NULL) {
939 (*addrs)[*num] = *pss;
940 set_sockaddr_port(&(*addrs)[*num], port);
946 static void mailslot_name(struct in_addr dc_ip, fstring name)
948 fstr_sprintf(name, "\\MAILSLOT\\NET\\GETDC%X", dc_ip.s_addr);
951 static bool send_getdc_request(struct sockaddr_storage *dc_ss,
952 const char *domain_name,
956 struct in_addr dc_ip;
958 fstring my_acct_name;
961 if (dc_ss->ss_family != AF_INET) {
965 dc_ip = ((struct sockaddr_in *)dc_ss)->sin_addr;
966 mailslot_name(dc_ip, my_mailslot);
968 memset(outbuf, '\0', sizeof(outbuf));
972 SCVAL(p, 0, SAMLOGON);
975 SCVAL(p, 0, 0); /* Count pointer ... */
978 SIVAL(p, 0, 0); /* The sender's token ... */
981 p += dos_PutUniCode(p, global_myname(),
982 sizeof(outbuf) - PTR_DIFF(p, outbuf), True);
983 fstr_sprintf(my_acct_name, "%s$", global_myname());
984 p += dos_PutUniCode(p, my_acct_name,
985 sizeof(outbuf) - PTR_DIFF(p, outbuf), True);
987 if (strlen(my_mailslot)+1 > sizeof(outbuf) - PTR_DIFF(p, outbuf)) {
991 memcpy(p, my_mailslot, strlen(my_mailslot)+1);
992 p += strlen(my_mailslot)+1;
994 if (sizeof(outbuf) - PTR_DIFF(p, outbuf) < 8) {
1001 SIVAL(p, 0, sid_size(sid));
1004 p = ALIGN4(p, outbuf);
1005 if (PTR_DIFF(p, outbuf) > sizeof(outbuf)) {
1009 sid_linearize(p, sid_size(sid), sid);
1010 if (sid_size(sid) + 8 > sizeof(outbuf) - PTR_DIFF(p, outbuf)) {
1017 SSVAL(p, 4, 0xffff);
1018 SSVAL(p, 6, 0xffff);
1021 return cli_send_mailslot(winbind_messaging_context(),
1022 False, "\\MAILSLOT\\NET\\NTLOGON", 0,
1023 outbuf, PTR_DIFF(p, outbuf),
1024 global_myname(), 0, domain_name, 0x1c,
1028 static bool receive_getdc_response(struct sockaddr_storage *dc_ss,
1029 const char *domain_name,
1032 struct packet_struct *packet;
1033 fstring my_mailslot;
1035 fstring dcname, user, domain;
1037 struct in_addr dc_ip;
1039 if (dc_ss->ss_family != AF_INET) {
1042 dc_ip = ((struct sockaddr_in *)dc_ss)->sin_addr;
1043 mailslot_name(dc_ip, my_mailslot);
1045 packet = receive_unexpected(DGRAM_PACKET, 0, my_mailslot);
1047 if (packet == NULL) {
1048 DEBUG(5, ("Did not receive packet for %s\n", my_mailslot));
1052 DEBUG(5, ("Received packet for %s\n", my_mailslot));
1054 buf = packet->packet.dgram.data;
1055 len = packet->packet.dgram.datasize;
1058 /* 70 is a completely arbitrary value to make sure
1059 the SVAL below does not read uninitialized memory */
1060 DEBUG(3, ("GetDC got short response\n"));
1064 /* This should be (buf-4)+SVAL(buf-4, smb_vwv12)... */
1065 p = buf+SVAL(buf, smb_vwv10);
1067 if (CVAL(p,0) != SAMLOGON_R) {
1068 DEBUG(8, ("GetDC got invalid response type %d\n", CVAL(p, 0)));
1073 pull_ucs2(buf, dcname, p, sizeof(dcname), PTR_DIFF(buf+len, p),
1074 STR_TERMINATE|STR_NOALIGN);
1075 p = skip_unibuf(p, PTR_DIFF(buf+len, p));
1076 pull_ucs2(buf, user, p, sizeof(dcname), PTR_DIFF(buf+len, p),
1077 STR_TERMINATE|STR_NOALIGN);
1078 p = skip_unibuf(p, PTR_DIFF(buf+len, p));
1079 pull_ucs2(buf, domain, p, sizeof(dcname), PTR_DIFF(buf+len, p),
1080 STR_TERMINATE|STR_NOALIGN);
1081 p = skip_unibuf(p, PTR_DIFF(buf+len, p));
1083 if (!strequal(domain, domain_name)) {
1084 DEBUG(3, ("GetDC: Expected domain %s, got %s\n",
1085 domain_name, domain));
1090 if (*p == '\\') p += 1;
1091 if (*p == '\\') p += 1;
1093 fstrcpy(dc_name, p);
1095 DEBUG(10, ("GetDC gave name %s for domain %s\n",
1101 /*******************************************************************
1102 convert an ip to a name
1103 *******************************************************************/
1105 static bool dcip_to_name(const struct winbindd_domain *domain,
1106 struct sockaddr_storage *pss,
1109 struct ip_service ip_list;
1115 /* For active directory servers, try to get the ldap server name.
1116 None of these failures should be considered critical for now */
1118 if (lp_security() == SEC_ADS) {
1120 char addr[INET6_ADDRSTRLEN];
1122 print_sockaddr(addr, sizeof(addr), pss);
1124 ads = ads_init(domain->alt_name, domain->name, NULL);
1125 ads->auth.flags |= ADS_AUTH_NO_BIND;
1127 if (ads_try_connect(ads, addr)) {
1128 /* We got a cldap packet. */
1129 fstrcpy(name, ads->config.ldap_server_name);
1130 namecache_store(name, 0x20, 1, &ip_list);
1132 DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
1134 if (domain->primary && (ads->config.flags & ADS_KDC)) {
1135 if (ads_closest_dc(ads)) {
1136 char *sitename = sitename_fetch(ads->config.realm);
1138 /* We're going to use this KDC for this realm/domain.
1139 If we are using sites, then force the krb5 libs
1142 create_local_private_krb5_conf_for_domain(domain->alt_name,
1147 SAFE_FREE(sitename);
1149 /* use an off site KDC */
1150 create_local_private_krb5_conf_for_domain(domain->alt_name,
1155 winbindd_set_locator_kdc_envs(domain);
1157 /* Ensure we contact this DC also. */
1158 saf_store( domain->name, name);
1159 saf_store( domain->alt_name, name);
1162 ads_destroy( &ads );
1166 ads_destroy( &ads );
1170 /* try GETDC requests next */
1172 if (send_getdc_request(pss, domain->name, &domain->sid)) {
1175 for (i=0; i<5; i++) {
1176 if (receive_getdc_response(pss, domain->name, name)) {
1177 namecache_store(name, 0x20, 1, &ip_list);
1184 /* try node status request */
1186 if ( name_status_find(domain->name, 0x1c, 0x20, pss, name) ) {
1187 namecache_store(name, 0x20, 1, &ip_list);
1193 /*******************************************************************
1194 Retreive a list of IP address for domain controllers. Fill in
1195 the dcs[] with results.
1196 *******************************************************************/
1198 static bool get_dcs(TALLOC_CTX *mem_ctx, const 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());
1212 && get_dc_name_via_netlogon(domain, dcname, &ss)
1213 && add_one_dc_unique(mem_ctx, domain->name, dcname, &ss, dcs, num_dcs) )
1215 char addr[INET6_ADDRSTRLEN];
1216 print_sockaddr(addr, sizeof(addr), &ss);
1217 DEBUG(10, ("Retrieved DC %s at %s via netlogon\n",
1222 if (sec == SEC_ADS) {
1223 char *sitename = NULL;
1225 /* We need to make sure we know the local site before
1226 doing any DNS queries, as this will restrict the
1227 get_sorted_dc_list() call below to only fetching
1228 DNS records for the correct site. */
1230 /* Find any DC to get the site record.
1231 We deliberately don't care about the
1234 get_dc_name(domain->name, domain->alt_name, dcname, &ss);
1236 sitename = sitename_fetch(domain->alt_name);
1239 /* Do the site-specific AD dns lookup first. */
1240 get_sorted_dc_list(domain->alt_name, sitename, &ip_list, &iplist_size, True);
1242 for ( i=0; i<iplist_size; i++ ) {
1243 char addr[INET6_ADDRSTRLEN];
1244 print_sockaddr(addr, sizeof(addr),
1246 add_one_dc_unique(mem_ctx,
1255 SAFE_FREE(sitename);
1259 /* Now we add DCs from the main AD dns lookup. */
1260 get_sorted_dc_list(domain->alt_name, NULL, &ip_list, &iplist_size, True);
1262 for ( i=0; i<iplist_size; i++ ) {
1263 char addr[INET6_ADDRSTRLEN];
1264 print_sockaddr(addr, sizeof(addr),
1266 add_one_dc_unique(mem_ctx,
1275 /* try standard netbios queries if no ADS */
1277 if (iplist_size==0) {
1278 get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size, False);
1281 /* FIXME!! this is where we should re-insert the GETDC requests --jerry */
1283 /* now add to the dc array. We'll wait until the last minute
1284 to look up the name of the DC. But we fill in the char* for
1285 the ip now in to make the failed connection cache work */
1287 for ( i=0; i<iplist_size; i++ ) {
1288 char addr[INET6_ADDRSTRLEN];
1289 print_sockaddr(addr, sizeof(addr),
1291 add_one_dc_unique(mem_ctx, domain->name, addr,
1292 &ip_list[i].ss, dcs, num_dcs);
1295 SAFE_FREE( ip_list );
1300 static bool find_new_dc(TALLOC_CTX *mem_ctx,
1301 const struct winbindd_domain *domain,
1302 fstring dcname, struct sockaddr_storage *pss, int *fd)
1304 struct dc_name_ip *dcs = NULL;
1307 const char **dcnames = NULL;
1308 int num_dcnames = 0;
1310 struct sockaddr_storage *addrs = NULL;
1316 if (!get_dcs(mem_ctx, domain, &dcs, &num_dcs) || (num_dcs == 0))
1319 for (i=0; i<num_dcs; i++) {
1321 if (!add_string_to_array(mem_ctx, dcs[i].name,
1322 &dcnames, &num_dcnames)) {
1325 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 445,
1326 &addrs, &num_addrs)) {
1330 if (!add_string_to_array(mem_ctx, dcs[i].name,
1331 &dcnames, &num_dcnames)) {
1334 if (!add_sockaddr_to_array(mem_ctx, &dcs[i].ss, 139,
1335 &addrs, &num_addrs)) {
1340 if ((num_dcnames == 0) || (num_dcnames != num_addrs))
1343 if ((addrs == NULL) || (dcnames == NULL))
1346 /* 5 second timeout. */
1347 if (!open_any_socket_out(addrs, num_addrs, 5000, &fd_index, fd) ) {
1348 for (i=0; i<num_dcs; i++) {
1349 char ab[INET6_ADDRSTRLEN];
1350 print_sockaddr(ab, sizeof(ab), &dcs[i].ss);
1351 DEBUG(10, ("find_new_dc: open_any_socket_out failed for "
1352 "domain %s address %s. Error was %s\n",
1353 domain->name, ab, strerror(errno) ));
1354 winbind_add_failed_connection_entry(domain,
1355 dcs[i].name, NT_STATUS_UNSUCCESSFUL);
1360 *pss = addrs[fd_index];
1362 if (*dcnames[fd_index] != '\0' && !is_ipaddress(dcnames[fd_index])) {
1363 /* Ok, we've got a name for the DC */
1364 fstrcpy(dcname, dcnames[fd_index]);
1368 /* Try to figure out the name */
1369 if (dcip_to_name(domain, pss, dcname)) {
1373 /* We can not continue without the DC's name */
1374 winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
1375 NT_STATUS_UNSUCCESSFUL);
1379 static NTSTATUS cm_open_connection(struct winbindd_domain *domain,
1380 struct winbindd_cm_conn *new_conn)
1382 TALLOC_CTX *mem_ctx;
1384 char *saf_servername = saf_fetch( domain->name );
1387 if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
1388 SAFE_FREE(saf_servername);
1389 set_domain_offline(domain);
1390 return NT_STATUS_NO_MEMORY;
1393 /* we have to check the server affinity cache here since
1394 later we selecte a DC based on response time and not preference */
1396 /* Check the negative connection cache
1397 before talking to it. It going down may have
1398 triggered the reconnection. */
1400 if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
1402 DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
1403 saf_servername, domain->name ));
1405 /* convert an ip address to a name */
1406 if (is_ipaddress( saf_servername ) ) {
1408 struct sockaddr_storage ss;
1410 if (!interpret_string_addr(&ss, saf_servername,
1412 return NT_STATUS_UNSUCCESSFUL;
1414 if (dcip_to_name( domain, &ss, saf_name )) {
1415 fstrcpy( domain->dcname, saf_name );
1417 winbind_add_failed_connection_entry(
1418 domain, saf_servername,
1419 NT_STATUS_UNSUCCESSFUL);
1422 fstrcpy( domain->dcname, saf_servername );
1425 SAFE_FREE( saf_servername );
1428 for (retries = 0; retries < 3; retries++) {
1432 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1434 DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
1435 domain->dcname, domain->name ));
1438 && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
1439 && (resolve_name(domain->dcname, &domain->dcaddr, 0x20)))
1441 struct sockaddr_storage *addrs = NULL;
1445 if (!add_sockaddr_to_array(mem_ctx, &domain->dcaddr, 445, &addrs, &num_addrs)) {
1446 set_domain_offline(domain);
1447 talloc_destroy(mem_ctx);
1448 return NT_STATUS_NO_MEMORY;
1450 if (!add_sockaddr_to_array(mem_ctx, &domain->dcaddr, 139, &addrs, &num_addrs)) {
1451 set_domain_offline(domain);
1452 talloc_destroy(mem_ctx);
1453 return NT_STATUS_NO_MEMORY;
1456 /* 5 second timeout. */
1457 if (!open_any_socket_out(addrs, num_addrs, 5000, &dummy, &fd)) {
1463 && !find_new_dc(mem_ctx, domain, domain->dcname, &domain->dcaddr, &fd))
1465 /* This is the one place where we will
1466 set the global winbindd offline state
1467 to true, if a "WINBINDD_OFFLINE" entry
1468 is found in the winbindd cache. */
1469 set_global_winbindd_state_offline();
1473 new_conn->cli = NULL;
1475 result = cm_prepare_connection(domain, fd, domain->dcname,
1476 &new_conn->cli, &retry);
1482 if (NT_STATUS_IS_OK(result)) {
1484 winbindd_set_locator_kdc_envs(domain);
1486 if (domain->online == False) {
1487 /* We're changing state from offline to online. */
1488 set_global_winbindd_state_online();
1490 set_domain_online(domain);
1492 /* Ensure we setup the retry handler. */
1493 set_domain_offline(domain);
1496 talloc_destroy(mem_ctx);
1500 /* Close down all open pipes on a connection. */
1502 void invalidate_cm_connection(struct winbindd_cm_conn *conn)
1504 /* We're closing down a possibly dead
1505 connection. Don't have impossibly long (10s) timeouts. */
1508 cli_set_timeout(conn->cli, 1000); /* 1 second. */
1511 if (conn->samr_pipe != NULL) {
1512 if (!cli_rpc_pipe_close(conn->samr_pipe)) {
1513 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1515 cli_set_timeout(conn->cli, 500);
1518 conn->samr_pipe = NULL;
1521 if (conn->lsa_pipe != NULL) {
1522 if (!cli_rpc_pipe_close(conn->lsa_pipe)) {
1523 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1525 cli_set_timeout(conn->cli, 500);
1528 conn->lsa_pipe = NULL;
1531 if (conn->netlogon_pipe != NULL) {
1532 if (!cli_rpc_pipe_close(conn->netlogon_pipe)) {
1533 /* Ok, it must be dead. Drop timeout to 0.5 sec. */
1535 cli_set_timeout(conn->cli, 500);
1538 conn->netlogon_pipe = NULL;
1542 cli_shutdown(conn->cli);
1548 void close_conns_after_fork(void)
1550 struct winbindd_domain *domain;
1552 for (domain = domain_list(); domain; domain = domain->next) {
1553 if (domain->conn.cli == NULL)
1556 if (domain->conn.cli->fd == -1)
1559 close(domain->conn.cli->fd);
1560 domain->conn.cli->fd = -1;
1564 static bool connection_ok(struct winbindd_domain *domain)
1566 if (domain->conn.cli == NULL) {
1567 DEBUG(8, ("connection_ok: Connection to %s for domain %s has NULL "
1568 "cli!\n", domain->dcname, domain->name));
1572 if (!domain->conn.cli->initialised) {
1573 DEBUG(3, ("connection_ok: Connection to %s for domain %s was never "
1574 "initialised!\n", domain->dcname, domain->name));
1578 if (domain->conn.cli->fd == -1) {
1579 DEBUG(3, ("connection_ok: Connection to %s for domain %s has died or was "
1580 "never started (fd == -1)\n",
1581 domain->dcname, domain->name));
1585 if (domain->online == False) {
1586 DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
1593 /* Initialize a new connection up to the RPC BIND.
1594 Bypass online status check so always does network calls. */
1596 static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
1600 /* Internal connections never use the network. */
1601 if (domain->internal) {
1602 domain->initialized = True;
1603 return NT_STATUS_OK;
1606 if (connection_ok(domain)) {
1607 if (!domain->initialized) {
1608 set_dc_type_and_flags(domain);
1610 return NT_STATUS_OK;
1613 invalidate_cm_connection(&domain->conn);
1615 result = cm_open_connection(domain, &domain->conn);
1617 if (NT_STATUS_IS_OK(result) && !domain->initialized) {
1618 set_dc_type_and_flags(domain);
1624 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
1626 if (domain->initialized && !domain->online) {
1627 /* We check for online status elsewhere. */
1628 return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1631 return init_dc_connection_network(domain);
1634 /******************************************************************************
1635 Set the trust flags (direction and forest location) for a domain
1636 ******************************************************************************/
1638 static bool set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
1640 struct winbindd_domain *our_domain;
1641 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1642 struct ds_domain_trust *domains = NULL;
1645 uint32 flags = (DS_DOMAIN_IN_FOREST |
1646 DS_DOMAIN_DIRECT_OUTBOUND |
1647 DS_DOMAIN_DIRECT_INBOUND);
1648 struct rpc_pipe_client *cli;
1649 TALLOC_CTX *mem_ctx = NULL;
1651 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
1653 /* Our primary domain doesn't need to worry about trust flags.
1654 Force it to go through the network setup */
1655 if ( domain->primary ) {
1659 our_domain = find_our_domain();
1661 if ( !connection_ok(our_domain) ) {
1662 DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
1666 /* This won't work unless our domain is AD */
1668 if ( !our_domain->active_directory ) {
1672 /* Use DsEnumerateDomainTrusts to get us the trust direction
1675 result = cm_connect_netlogon(our_domain, &cli);
1677 if (!NT_STATUS_IS_OK(result)) {
1678 DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
1679 "a connection to %s for PIPE_NETLOGON (%s)\n",
1680 domain->name, nt_errstr(result)));
1684 if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
1685 DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
1689 result = rpccli_ds_enum_domain_trusts(cli, mem_ctx,
1692 (unsigned int *)&count);
1694 /* Now find the domain name and get the flags */
1696 for ( i=0; i<count; i++ ) {
1697 if ( strequal( domain->name, domains[i].netbios_domain ) ) {
1698 domain->domain_flags = domains[i].flags;
1699 domain->domain_type = domains[i].trust_type;
1700 domain->domain_trust_attribs = domains[i].trust_attributes;
1702 if ( domain->domain_type == DS_DOMAIN_TRUST_TYPE_UPLEVEL )
1703 domain->active_directory = True;
1705 /* This flag is only set if the domain is *our*
1706 primary domain and the primary domain is in
1709 domain->native_mode = (domain->domain_flags & DS_DOMAIN_NATIVE_MODE);
1711 DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
1712 "native mode.\n", domain->name,
1713 domain->native_mode ? "" : "NOT "));
1715 DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
1716 "running active directory.\n", domain->name,
1717 domain->active_directory ? "" : "NOT "));
1720 domain->initialized = True;
1722 if ( !winbindd_can_contact_domain( domain) )
1723 domain->internal = True;
1729 talloc_destroy( mem_ctx );
1731 return domain->initialized;
1734 /******************************************************************************
1735 We can 'sense' certain things about the DC by it's replies to certain
1738 This tells us if this particular remote server is Active Directory, and if it
1740 ******************************************************************************/
1742 static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
1746 TALLOC_CTX *mem_ctx = NULL;
1747 struct rpc_pipe_client *cli;
1750 char *domain_name = NULL;
1751 char *dns_name = NULL;
1752 char *forest_name = NULL;
1753 DOM_SID *dom_sid = NULL;
1757 if (!connection_ok(domain)) {
1761 mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
1764 DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
1768 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
1770 cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_LSARPC_DS,
1774 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1775 "PI_LSARPC_DS on domain %s: (%s)\n",
1776 domain->name, nt_errstr(result)));
1778 /* if this is just a non-AD domain we need to continue
1779 * identifying so that we can in the end return with
1780 * domain->initialized = True - gd */
1785 result = rpccli_ds_getprimarydominfo(cli, mem_ctx,
1786 DsRolePrimaryDomainInfoBasic,
1788 cli_rpc_pipe_close(cli);
1790 if (!NT_STATUS_IS_OK(result)) {
1791 DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
1792 "on domain %s failed: (%s)\n",
1793 domain->name, nt_errstr(result)));
1795 /* older samba3 DCs will return DCERPC_FAULT_OP_RNG_ERROR for
1796 * every opcode on the LSARPC_DS pipe, continue with
1797 * no_lsarpc_ds mode here as well to get domain->initialized
1800 if (NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR) {
1804 TALLOC_FREE(mem_ctx);
1808 if ((ctr.basic->flags & DSROLE_PRIMARY_DS_RUNNING) &&
1809 !(ctr.basic->flags & DSROLE_PRIMARY_DS_MIXED_MODE)) {
1810 domain->native_mode = True;
1812 domain->native_mode = False;
1816 cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_LSARPC, &result);
1819 DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
1820 "PI_LSARPC on domain %s: (%s)\n",
1821 domain->name, nt_errstr(result)));
1822 cli_rpc_pipe_close(cli);
1823 TALLOC_FREE(mem_ctx);
1827 result = rpccli_lsa_open_policy2(cli, mem_ctx, True,
1828 SEC_RIGHTS_MAXIMUM_ALLOWED, &pol);
1830 if (NT_STATUS_IS_OK(result)) {
1831 /* This particular query is exactly what Win2k clients use
1832 to determine that the DC is active directory */
1833 result = rpccli_lsa_query_info_policy2(cli, mem_ctx, &pol,
1835 &dns_name, &forest_name,
1839 if (NT_STATUS_IS_OK(result)) {
1840 domain->active_directory = True;
1843 fstrcpy(domain->name, domain_name);
1846 fstrcpy(domain->alt_name, dns_name);
1849 fstrcpy(domain->forest_name, forest_name);
1852 sid_copy(&domain->sid, dom_sid);
1854 domain->active_directory = False;
1856 result = rpccli_lsa_open_policy(cli, mem_ctx, True,
1857 SEC_RIGHTS_MAXIMUM_ALLOWED,
1860 if (!NT_STATUS_IS_OK(result))
1863 result = rpccli_lsa_query_info_policy(cli, mem_ctx,
1864 &pol, 5, &domain_name,
1867 if (NT_STATUS_IS_OK(result)) {
1869 fstrcpy(domain->name, domain_name);
1872 sid_copy(&domain->sid, dom_sid);
1877 DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
1878 domain->name, domain->native_mode ? "" : "NOT "));
1880 DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
1881 domain->name, domain->active_directory ? "" : "NOT "));
1883 cli_rpc_pipe_close(cli);
1885 TALLOC_FREE(mem_ctx);
1887 domain->initialized = True;
1890 /**********************************************************************
1891 Set the domain_flags (trust attributes, domain operating modes, etc...
1892 ***********************************************************************/
1894 static void set_dc_type_and_flags( struct winbindd_domain *domain )
1896 /* we always have to contact our primary domain */
1898 if ( domain->primary ) {
1899 DEBUG(10,("set_dc_type_and_flags: setting up flags for "
1900 "primary domain\n"));
1901 set_dc_type_and_flags_connect( domain );
1905 /* Use our DC to get the information if possible */
1907 if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
1908 /* Otherwise, fallback to contacting the
1910 set_dc_type_and_flags_connect( domain );
1918 /**********************************************************************
1919 ***********************************************************************/
1921 static bool cm_get_schannel_dcinfo(struct winbindd_domain *domain,
1922 struct dcinfo **ppdc)
1925 struct rpc_pipe_client *netlogon_pipe;
1927 if (lp_client_schannel() == False) {
1931 result = cm_connect_netlogon(domain, &netlogon_pipe);
1932 if (!NT_STATUS_IS_OK(result)) {
1936 /* Return a pointer to the struct dcinfo from the
1939 *ppdc = domain->conn.netlogon_pipe->dc;
1943 NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
1944 struct rpc_pipe_client **cli, POLICY_HND *sam_handle)
1946 struct winbindd_cm_conn *conn;
1947 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1949 struct dcinfo *p_dcinfo;
1951 result = init_dc_connection(domain);
1952 if (!NT_STATUS_IS_OK(result)) {
1956 conn = &domain->conn;
1958 if (conn->samr_pipe != NULL) {
1963 * No SAMR pipe yet. Attempt to get an NTLMSSP SPNEGO authenticated
1964 * sign and sealed pipe using the machine account password by
1965 * preference. If we can't - try schannel, if that fails, try
1969 pwd_get_cleartext(&conn->cli->pwd, conn_pwd);
1970 if ((conn->cli->user_name[0] == '\0') ||
1971 (conn->cli->domain[0] == '\0') ||
1972 (conn_pwd[0] == '\0')) {
1973 DEBUG(10, ("cm_connect_sam: No no user available for "
1974 "domain %s, trying schannel\n", conn->cli->domain));
1978 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
1979 authenticated SAMR pipe with sign & seal. */
1981 cli_rpc_pipe_open_spnego_ntlmssp(conn->cli, PI_SAMR,
1982 PIPE_AUTH_LEVEL_PRIVACY,
1984 conn->cli->user_name,
1987 if (conn->samr_pipe == NULL) {
1988 DEBUG(10,("cm_connect_sam: failed to connect to SAMR "
1989 "pipe for domain %s using NTLMSSP "
1990 "authenticated pipe: user %s\\%s. Error was "
1991 "%s\n", domain->name, conn->cli->domain,
1992 conn->cli->user_name, nt_errstr(result)));
1996 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for "
1997 "domain %s using NTLMSSP authenticated "
1998 "pipe: user %s\\%s\n", domain->name,
1999 conn->cli->domain, conn->cli->user_name ));
2001 result = rpccli_samr_connect(conn->samr_pipe, mem_ctx,
2002 SEC_RIGHTS_MAXIMUM_ALLOWED,
2003 &conn->sam_connect_handle);
2004 if (NT_STATUS_IS_OK(result)) {
2007 DEBUG(10,("cm_connect_sam: ntlmssp-sealed rpccli_samr_connect "
2008 "failed for domain %s, error was %s. Trying schannel\n",
2009 domain->name, nt_errstr(result) ));
2010 cli_rpc_pipe_close(conn->samr_pipe);
2014 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2016 if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
2017 /* If this call fails - conn->cli can now be NULL ! */
2018 DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
2019 "for domain %s, trying anon\n", domain->name));
2022 conn->samr_pipe = cli_rpc_pipe_open_schannel_with_key
2023 (conn->cli, PI_SAMR, PIPE_AUTH_LEVEL_PRIVACY,
2024 domain->name, p_dcinfo, &result);
2026 if (conn->samr_pipe == NULL) {
2027 DEBUG(10,("cm_connect_sam: failed to connect to SAMR pipe for "
2028 "domain %s using schannel. Error was %s\n",
2029 domain->name, nt_errstr(result) ));
2032 DEBUG(10,("cm_connect_sam: connected to SAMR pipe for domain %s using "
2033 "schannel.\n", domain->name ));
2035 result = rpccli_samr_connect(conn->samr_pipe, mem_ctx,
2036 SEC_RIGHTS_MAXIMUM_ALLOWED,
2037 &conn->sam_connect_handle);
2038 if (NT_STATUS_IS_OK(result)) {
2041 DEBUG(10,("cm_connect_sam: schannel-sealed rpccli_samr_connect failed "
2042 "for domain %s, error was %s. Trying anonymous\n",
2043 domain->name, nt_errstr(result) ));
2044 cli_rpc_pipe_close(conn->samr_pipe);
2048 /* Finally fall back to anonymous. */
2049 conn->samr_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_SAMR,
2052 if (conn->samr_pipe == NULL) {
2053 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2057 result = rpccli_samr_connect(conn->samr_pipe, mem_ctx,
2058 SEC_RIGHTS_MAXIMUM_ALLOWED,
2059 &conn->sam_connect_handle);
2060 if (!NT_STATUS_IS_OK(result)) {
2061 DEBUG(10,("cm_connect_sam: rpccli_samr_connect failed "
2062 "for domain %s Error was %s\n",
2063 domain->name, nt_errstr(result) ));
2068 result = rpccli_samr_open_domain(conn->samr_pipe,
2070 &conn->sam_connect_handle,
2071 SEC_RIGHTS_MAXIMUM_ALLOWED,
2073 &conn->sam_domain_handle);
2077 if (!NT_STATUS_IS_OK(result)) {
2078 invalidate_cm_connection(conn);
2082 *cli = conn->samr_pipe;
2083 *sam_handle = conn->sam_domain_handle;
2087 NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
2088 struct rpc_pipe_client **cli, POLICY_HND *lsa_policy)
2090 struct winbindd_cm_conn *conn;
2091 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
2093 struct dcinfo *p_dcinfo;
2095 result = init_dc_connection(domain);
2096 if (!NT_STATUS_IS_OK(result))
2099 conn = &domain->conn;
2101 if (conn->lsa_pipe != NULL) {
2105 pwd_get_cleartext(&conn->cli->pwd, conn_pwd);
2106 if ((conn->cli->user_name[0] == '\0') ||
2107 (conn->cli->domain[0] == '\0') ||
2108 (conn_pwd[0] == '\0')) {
2109 DEBUG(10, ("cm_connect_lsa: No no user available for "
2110 "domain %s, trying schannel\n", conn->cli->domain));
2114 /* We have an authenticated connection. Use a NTLMSSP SPNEGO
2115 * authenticated LSA pipe with sign & seal. */
2116 conn->lsa_pipe = cli_rpc_pipe_open_spnego_ntlmssp
2117 (conn->cli, PI_LSARPC, PIPE_AUTH_LEVEL_PRIVACY,
2118 conn->cli->domain, conn->cli->user_name, conn_pwd, &result);
2120 if (conn->lsa_pipe == NULL) {
2121 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2122 "domain %s using NTLMSSP authenticated pipe: user "
2123 "%s\\%s. Error was %s. Trying schannel.\n",
2124 domain->name, conn->cli->domain,
2125 conn->cli->user_name, nt_errstr(result)));
2129 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2130 "NTLMSSP authenticated pipe: user %s\\%s\n",
2131 domain->name, conn->cli->domain, conn->cli->user_name ));
2133 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2134 SEC_RIGHTS_MAXIMUM_ALLOWED,
2136 if (NT_STATUS_IS_OK(result)) {
2140 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2143 cli_rpc_pipe_close(conn->lsa_pipe);
2147 /* Fall back to schannel if it's a W2K pre-SP1 box. */
2149 if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
2150 /* If this call fails - conn->cli can now be NULL ! */
2151 DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
2152 "for domain %s, trying anon\n", domain->name));
2155 conn->lsa_pipe = cli_rpc_pipe_open_schannel_with_key
2156 (conn->cli, PI_LSARPC, PIPE_AUTH_LEVEL_PRIVACY,
2157 domain->name, p_dcinfo, &result);
2159 if (conn->lsa_pipe == NULL) {
2160 DEBUG(10,("cm_connect_lsa: failed to connect to LSA pipe for "
2161 "domain %s using schannel. Error was %s\n",
2162 domain->name, nt_errstr(result) ));
2165 DEBUG(10,("cm_connect_lsa: connected to LSA pipe for domain %s using "
2166 "schannel.\n", domain->name ));
2168 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2169 SEC_RIGHTS_MAXIMUM_ALLOWED,
2171 if (NT_STATUS_IS_OK(result)) {
2175 DEBUG(10,("cm_connect_lsa: rpccli_lsa_open_policy failed, trying "
2178 cli_rpc_pipe_close(conn->lsa_pipe);
2182 conn->lsa_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_LSARPC,
2184 if (conn->lsa_pipe == NULL) {
2185 result = NT_STATUS_PIPE_NOT_AVAILABLE;
2189 result = rpccli_lsa_open_policy(conn->lsa_pipe, mem_ctx, True,
2190 SEC_RIGHTS_MAXIMUM_ALLOWED,
2193 if (!NT_STATUS_IS_OK(result)) {
2194 invalidate_cm_connection(conn);
2198 *cli = conn->lsa_pipe;
2199 *lsa_policy = conn->lsa_policy;
2203 /****************************************************************************
2204 Open the netlogon pipe to this DC. Use schannel if specified in client conf.
2205 session key stored in conn->netlogon_pipe->dc->sess_key.
2206 ****************************************************************************/
2208 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
2209 struct rpc_pipe_client **cli)
2211 struct winbindd_cm_conn *conn;
2214 uint32 neg_flags = NETLOGON_NEG_AUTH2_FLAGS;
2216 uint32 sec_chan_type;
2217 const char *account_name;
2218 struct rpc_pipe_client *netlogon_pipe = NULL;
2222 result = init_dc_connection(domain);
2223 if (!NT_STATUS_IS_OK(result)) {
2227 conn = &domain->conn;
2229 if (conn->netlogon_pipe != NULL) {
2230 *cli = conn->netlogon_pipe;
2231 return NT_STATUS_OK;
2234 netlogon_pipe = cli_rpc_pipe_open_noauth(conn->cli, PI_NETLOGON,
2236 if (netlogon_pipe == NULL) {
2240 if ((!IS_DC) && (!domain->primary)) {
2241 /* Clear the schannel request bit and drop down */
2242 neg_flags &= ~NETLOGON_NEG_SCHANNEL;
2246 if (lp_client_schannel() != False) {
2247 neg_flags |= NETLOGON_NEG_SCHANNEL;
2250 if (!get_trust_pw_hash(domain->name, mach_pwd, &account_name,
2253 cli_rpc_pipe_close(netlogon_pipe);
2254 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2257 result = rpccli_netlogon_setup_creds(
2259 domain->dcname, /* server name. */
2260 domain->name, /* domain name */
2261 global_myname(), /* client name */
2262 account_name, /* machine account */
2263 mach_pwd, /* machine password */
2264 sec_chan_type, /* from get_trust_pw */
2267 if (!NT_STATUS_IS_OK(result)) {
2268 cli_rpc_pipe_close(netlogon_pipe);
2272 if ((lp_client_schannel() == True) &&
2273 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2274 DEBUG(3, ("Server did not offer schannel\n"));
2275 cli_rpc_pipe_close(netlogon_pipe);
2276 return NT_STATUS_ACCESS_DENIED;
2280 if ((lp_client_schannel() == False) ||
2281 ((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
2282 /* We're done - just keep the existing connection to NETLOGON
2284 conn->netlogon_pipe = netlogon_pipe;
2285 *cli = conn->netlogon_pipe;
2286 return NT_STATUS_OK;
2289 /* Using the credentials from the first pipe, open a signed and sealed
2290 second netlogon pipe. The session key is stored in the schannel
2291 part of the new pipe auth struct.
2294 conn->netlogon_pipe =
2295 cli_rpc_pipe_open_schannel_with_key(conn->cli,
2297 PIPE_AUTH_LEVEL_PRIVACY,
2302 /* We can now close the initial netlogon pipe. */
2303 cli_rpc_pipe_close(netlogon_pipe);
2305 if (conn->netlogon_pipe == NULL) {
2306 DEBUG(3, ("Could not open schannel'ed NETLOGON pipe. Error "
2307 "was %s\n", nt_errstr(result)));
2309 /* make sure we return something besides OK */
2310 return !NT_STATUS_IS_OK(result) ? result : NT_STATUS_PIPE_NOT_AVAILABLE;
2313 *cli = conn->netlogon_pipe;
2314 return NT_STATUS_OK;