2 Unix SMB/CIFS implementation.
4 Winbind daemon for ntdom nss module
6 Copyright (C) Tim Potter 2000-2001
7 Copyright (C) 2001 by Martin Pool <mbp@samba.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #define DBGC_CLASS DBGC_WINBIND
29 extern struct winbindd_methods cache_methods;
30 extern struct winbindd_methods builtin_passdb_methods;
31 extern struct winbindd_methods sam_passdb_methods;
35 * @file winbindd_util.c
37 * Winbind daemon for NT domain authentication nss module.
41 /* The list of trusted domains. Note that the list can be deleted and
42 recreated using the init_domain_list() function so pointers to
43 individual winbindd_domain structures cannot be made. Keep a copy of
44 the domain name instead. */
46 static struct winbindd_domain *_domain_list = NULL;
48 struct winbindd_domain *domain_list(void)
52 if ((!_domain_list) && (!init_domain_list())) {
53 smb_panic("Init_domain_list failed");
59 /* Free all entries in the trusted domain list */
61 void free_domain_list(void)
63 struct winbindd_domain *domain = _domain_list;
66 struct winbindd_domain *next = domain->next;
68 DLIST_REMOVE(_domain_list, domain);
74 static bool is_internal_domain(const DOM_SID *sid)
80 return sid_check_is_builtin(sid);
82 return (sid_check_is_domain(sid) || sid_check_is_builtin(sid));
85 static bool is_in_internal_domain(const DOM_SID *sid)
91 return sid_check_is_in_builtin(sid);
93 return (sid_check_is_in_our_domain(sid) || sid_check_is_in_builtin(sid));
97 /* Add a trusted domain to our list of domains */
98 static struct winbindd_domain *add_trusted_domain(const char *domain_name, const char *alt_name,
99 struct winbindd_methods *methods,
102 struct winbindd_domain *domain;
103 const char *alternative_name = NULL;
104 char *idmap_config_option;
106 const char **ignored_domains, **dom;
108 ignored_domains = lp_parm_string_list(-1, "winbind", "ignore domains", NULL);
109 for (dom=ignored_domains; dom && *dom; dom++) {
110 if (gen_fnmatch(*dom, domain_name) == 0) {
111 DEBUG(2,("Ignoring domain '%s'\n", domain_name));
116 /* ignore alt_name if we are not in an AD domain */
118 if ( (lp_security() == SEC_ADS) && alt_name && *alt_name) {
119 alternative_name = alt_name;
122 /* We can't call domain_list() as this function is called from
123 init_domain_list() and we'll get stuck in a loop. */
124 for (domain = _domain_list; domain; domain = domain->next) {
125 if (strequal(domain_name, domain->name) ||
126 strequal(domain_name, domain->alt_name))
131 if (alternative_name && *alternative_name)
133 if (strequal(alternative_name, domain->name) ||
134 strequal(alternative_name, domain->alt_name))
142 if (is_null_sid(sid)) {
146 if (sid_equal(sid, &domain->sid)) {
152 /* See if we found a match. Check if we need to update the
155 if ( domain && sid) {
156 if ( sid_equal( &domain->sid, &global_sid_NULL ) )
157 sid_copy( &domain->sid, sid );
162 /* Create new domain entry */
164 if ((domain = SMB_MALLOC_P(struct winbindd_domain)) == NULL)
169 ZERO_STRUCTP(domain);
171 fstrcpy(domain->name, domain_name);
172 if (alternative_name) {
173 fstrcpy(domain->alt_name, alternative_name);
176 domain->methods = methods;
177 domain->backend = NULL;
178 domain->internal = is_internal_domain(sid);
179 domain->sequence_number = DOM_SEQUENCE_NONE;
180 domain->last_seq_check = 0;
181 domain->initialized = False;
182 domain->online = is_internal_domain(sid);
183 domain->check_online_timeout = 0;
184 domain->dc_probe_pid = (pid_t)-1;
186 sid_copy(&domain->sid, sid);
189 /* Link to domain list */
190 DLIST_ADD_END(_domain_list, domain, struct winbindd_domain *);
192 wcache_tdc_add_domain( domain );
194 idmap_config_option = talloc_asprintf(talloc_tos(), "idmap config %s",
196 if (idmap_config_option == NULL) {
197 DEBUG(0, ("talloc failed, not looking for idmap config\n"));
201 param = lp_parm_const_string(-1, idmap_config_option, "range", NULL);
203 DEBUG(10, ("%s : range = %s\n", idmap_config_option,
204 param ? param : "not defined"));
207 unsigned low_id, high_id;
208 if (sscanf(param, "%u - %u", &low_id, &high_id) != 2) {
209 DEBUG(1, ("invalid range syntax in %s: %s\n",
210 idmap_config_option, param));
213 if (low_id > high_id) {
214 DEBUG(1, ("invalid range in %s: %s\n",
215 idmap_config_option, param));
218 domain->have_idmap_config = true;
219 domain->id_range_low = low_id;
220 domain->id_range_high = high_id;
225 DEBUG(2,("Added domain %s %s %s\n",
226 domain->name, domain->alt_name,
227 &domain->sid?sid_string_dbg(&domain->sid):""));
232 /********************************************************************
233 rescan our domains looking for new trusted domains
234 ********************************************************************/
236 struct trustdom_state {
240 struct winbindd_response *response;
243 static void trustdom_recv(void *private_data, bool success);
244 static void rescan_forest_root_trusts( void );
245 static void rescan_forest_trusts( void );
247 static void add_trusted_domains( struct winbindd_domain *domain )
250 struct winbindd_request *request;
251 struct winbindd_response *response;
252 uint32 fr_flags = (NETR_TRUST_FLAG_TREEROOT|NETR_TRUST_FLAG_IN_FOREST);
254 struct trustdom_state *state;
256 mem_ctx = talloc_init("add_trusted_domains");
257 if (mem_ctx == NULL) {
258 DEBUG(0, ("talloc_init failed\n"));
262 request = TALLOC_ZERO_P(mem_ctx, struct winbindd_request);
263 response = TALLOC_P(mem_ctx, struct winbindd_response);
264 state = TALLOC_P(mem_ctx, struct trustdom_state);
266 if ((request == NULL) || (response == NULL) || (state == NULL)) {
267 DEBUG(0, ("talloc failed\n"));
268 talloc_destroy(mem_ctx);
272 state->mem_ctx = mem_ctx;
273 state->response = response;
275 /* Flags used to know how to continue the forest trust search */
277 state->primary = domain->primary;
278 state->forest_root = ((domain->domain_flags & fr_flags) == fr_flags );
280 request->length = sizeof(*request);
281 request->cmd = WINBINDD_LIST_TRUSTDOM;
283 async_domain_request(mem_ctx, domain, request, response,
284 trustdom_recv, state);
287 static void trustdom_recv(void *private_data, bool success)
289 struct trustdom_state *state =
290 talloc_get_type_abort(private_data, struct trustdom_state);
291 struct winbindd_response *response = state->response;
294 if ((!success) || (response->result != WINBINDD_OK)) {
295 DEBUG(1, ("Could not receive trustdoms\n"));
296 talloc_destroy(state->mem_ctx);
300 p = (char *)response->extra_data.data;
302 while ((p != NULL) && (*p != '\0')) {
303 char *q, *sidstr, *alt_name;
305 struct winbindd_domain *domain;
306 char *alternate_name = NULL;
308 alt_name = strchr(p, '\\');
309 if (alt_name == NULL) {
310 DEBUG(0, ("Got invalid trustdom response\n"));
317 sidstr = strchr(alt_name, '\\');
318 if (sidstr == NULL) {
319 DEBUG(0, ("Got invalid trustdom response\n"));
326 q = strchr(sidstr, '\n');
330 if (!string_to_sid(&sid, sidstr)) {
331 /* Allow NULL sid for sibling domains */
332 if ( strcmp(sidstr,"S-0-0") == 0) {
333 sid_copy( &sid, &global_sid_NULL);
335 DEBUG(0, ("Got invalid trustdom response\n"));
340 /* use the real alt_name if we have one, else pass in NULL */
342 if ( !strequal( alt_name, "(null)" ) )
343 alternate_name = alt_name;
345 /* If we have an existing domain structure, calling
346 add_trusted_domain() will update the SID if
347 necessary. This is important because we need the
348 SID for sibling domains */
350 if ( find_domain_from_name_noinit(p) != NULL ) {
351 domain = add_trusted_domain(p, alternate_name,
355 domain = add_trusted_domain(p, alternate_name,
359 setup_domain_child(domain,
369 Cases to consider when scanning trusts:
370 (a) we are calling from a child domain (primary && !forest_root)
371 (b) we are calling from the root of the forest (primary && forest_root)
372 (c) we are calling from a trusted forest domain (!primary
376 if ( state->primary ) {
377 /* If this is our primary domain and we are not in the
378 forest root, we have to scan the root trusts first */
380 if ( !state->forest_root )
381 rescan_forest_root_trusts();
383 rescan_forest_trusts();
385 } else if ( state->forest_root ) {
386 /* Once we have done root forest trust search, we can
387 go on to search the trusted forests */
389 rescan_forest_trusts();
392 talloc_destroy(state->mem_ctx);
397 /********************************************************************
398 Scan the trusts of our forest root
399 ********************************************************************/
401 static void rescan_forest_root_trusts( void )
403 struct winbindd_tdc_domain *dom_list = NULL;
404 size_t num_trusts = 0;
407 /* The only transitive trusts supported by Windows 2003 AD are
408 (a) Parent-Child, (b) Tree-Root, and (c) Forest. The
409 first two are handled in forest and listed by
410 DsEnumerateDomainTrusts(). Forest trusts are not so we
411 have to do that ourselves. */
413 if ( !wcache_tdc_fetch_list( &dom_list, &num_trusts ) )
416 for ( i=0; i<num_trusts; i++ ) {
417 struct winbindd_domain *d = NULL;
419 /* Find the forest root. Don't necessarily trust
420 the domain_list() as our primary domain may not
421 have been initialized. */
423 if ( !(dom_list[i].trust_flags & NETR_TRUST_FLAG_TREEROOT) ) {
427 /* Here's the forest root */
429 d = find_domain_from_name_noinit( dom_list[i].domain_name );
432 d = add_trusted_domain( dom_list[i].domain_name,
433 dom_list[i].dns_name,
442 DEBUG(10,("rescan_forest_root_trusts: Following trust path "
443 "for domain tree root %s (%s)\n",
444 d->name, d->alt_name ));
446 d->domain_flags = dom_list[i].trust_flags;
447 d->domain_type = dom_list[i].trust_type;
448 d->domain_trust_attribs = dom_list[i].trust_attribs;
450 add_trusted_domains( d );
455 TALLOC_FREE( dom_list );
460 /********************************************************************
461 scan the transitive forest trusts (not our own)
462 ********************************************************************/
465 static void rescan_forest_trusts( void )
467 struct winbindd_domain *d = NULL;
468 struct winbindd_tdc_domain *dom_list = NULL;
469 size_t num_trusts = 0;
472 /* The only transitive trusts supported by Windows 2003 AD are
473 (a) Parent-Child, (b) Tree-Root, and (c) Forest. The
474 first two are handled in forest and listed by
475 DsEnumerateDomainTrusts(). Forest trusts are not so we
476 have to do that ourselves. */
478 if ( !wcache_tdc_fetch_list( &dom_list, &num_trusts ) )
481 for ( i=0; i<num_trusts; i++ ) {
482 uint32 flags = dom_list[i].trust_flags;
483 uint32 type = dom_list[i].trust_type;
484 uint32 attribs = dom_list[i].trust_attribs;
486 d = find_domain_from_name_noinit( dom_list[i].domain_name );
488 /* ignore our primary and internal domains */
490 if ( d && (d->internal || d->primary ) )
493 if ( (flags & NETR_TRUST_FLAG_INBOUND) &&
494 (type == NETR_TRUST_TYPE_UPLEVEL) &&
495 (attribs == NETR_TRUST_ATTRIBUTE_FOREST_TRANSITIVE) )
497 /* add the trusted domain if we don't know
501 d = add_trusted_domain( dom_list[i].domain_name,
502 dom_list[i].dns_name,
511 DEBUG(10,("Following trust path for domain %s (%s)\n",
512 d->name, d->alt_name ));
513 add_trusted_domains( d );
517 TALLOC_FREE( dom_list );
522 /*********************************************************************
523 The process of updating the trusted domain list is a three step
526 (b) ask the root domain in our forest
527 (c) ask the a DC in any Win2003 trusted forests
528 *********************************************************************/
530 void rescan_trusted_domains(struct tevent_context *ev, struct tevent_timer *te,
531 struct timeval now, void *private_data)
535 /* I use to clear the cache here and start over but that
536 caused problems in child processes that needed the
537 trust dom list early on. Removing it means we
538 could have some trusted domains listed that have been
539 removed from our primary domain's DC until a full
540 restart. This should be ok since I think this is what
541 Windows does as well. */
543 /* this will only add new domains we didn't already know about
544 in the domain_list()*/
546 add_trusted_domains( find_our_domain() );
548 te = tevent_add_timer(
549 ev, NULL, timeval_current_ofs(WINBINDD_RESCAN_FREQ, 0),
550 rescan_trusted_domains, NULL);
552 * If te == NULL, there's not much we can do here. Don't fail, the
553 * only thing we miss is new trusted domains.
559 enum winbindd_result winbindd_dual_init_connection(struct winbindd_domain *domain,
560 struct winbindd_cli_state *state)
562 /* Ensure null termination */
563 state->request->domain_name
564 [sizeof(state->request->domain_name)-1]='\0';
565 state->request->data.init_conn.dcname
566 [sizeof(state->request->data.init_conn.dcname)-1]='\0';
568 if (strlen(state->request->data.init_conn.dcname) > 0) {
569 fstrcpy(domain->dcname, state->request->data.init_conn.dcname);
572 init_dc_connection(domain);
574 if (!domain->initialized) {
575 /* If we return error here we can't do any cached authentication,
576 but we may be in disconnected mode and can't initialize correctly.
577 Do what the previous code did and just return without initialization,
578 once we go online we'll re-initialize.
580 DEBUG(5, ("winbindd_dual_init_connection: %s returning without initialization "
581 "online = %d\n", domain->name, (int)domain->online ));
584 fstrcpy(state->response->data.domain_info.name, domain->name);
585 fstrcpy(state->response->data.domain_info.alt_name, domain->alt_name);
586 sid_to_fstring(state->response->data.domain_info.sid, &domain->sid);
588 state->response->data.domain_info.native_mode
589 = domain->native_mode;
590 state->response->data.domain_info.active_directory
591 = domain->active_directory;
592 state->response->data.domain_info.primary
598 /* Look up global info for the winbind daemon */
599 bool init_domain_list(void)
601 struct winbindd_domain *domain;
602 int role = lp_server_role();
604 /* Free existing list */
609 domain = add_trusted_domain("BUILTIN", NULL, &builtin_passdb_methods,
610 &global_sid_Builtin);
612 setup_domain_child(domain,
618 domain = add_trusted_domain(get_global_sam_name(), NULL,
619 &sam_passdb_methods, get_global_sam_sid());
621 if ( role != ROLE_DOMAIN_MEMBER ) {
622 domain->primary = True;
624 setup_domain_child(domain,
628 /* Add ourselves as the first entry. */
630 if ( role == ROLE_DOMAIN_MEMBER ) {
633 if (!secrets_fetch_domain_sid(lp_workgroup(), &our_sid)) {
634 DEBUG(0, ("Could not fetch our SID - did we join?\n"));
638 domain = add_trusted_domain( lp_workgroup(), lp_realm(),
639 &cache_methods, &our_sid);
641 domain->primary = True;
642 setup_domain_child(domain,
645 /* Even in the parent winbindd we'll need to
646 talk to the DC, so try and see if we can
647 contact it. Theoretically this isn't neccessary
648 as the init_dc_connection() in init_child_recv()
649 will do this, but we can start detecting the DC
651 set_domain_online_request(domain);
658 void check_domain_trusted( const char *name, const DOM_SID *user_sid )
660 struct winbindd_domain *domain;
664 /* Check if we even care */
666 if (!lp_allow_trusted_domains())
669 domain = find_domain_from_name_noinit( name );
673 sid_copy( &dom_sid, user_sid );
674 if ( !sid_split_rid( &dom_sid, &rid ) )
677 /* add the newly discovered trusted domain */
679 domain = add_trusted_domain( name, NULL, &cache_methods,
685 /* assume this is a trust from a one-way transitive
688 domain->active_directory = True;
689 domain->domain_flags = NETR_TRUST_FLAG_OUTBOUND;
690 domain->domain_type = NETR_TRUST_TYPE_UPLEVEL;
691 domain->internal = False;
692 domain->online = True;
694 setup_domain_child(domain,
697 wcache_tdc_add_domain( domain );
703 * Given a domain name, return the struct winbindd domain info for it
705 * @note Do *not* pass lp_workgroup() to this function. domain_list
706 * may modify it's value, and free that pointer. Instead, our local
707 * domain may be found by calling find_our_domain().
711 * @return The domain structure for the named domain, if it is working.
714 struct winbindd_domain *find_domain_from_name_noinit(const char *domain_name)
716 struct winbindd_domain *domain;
718 /* Search through list */
720 for (domain = domain_list(); domain != NULL; domain = domain->next) {
721 if (strequal(domain_name, domain->name) ||
722 (domain->alt_name[0] &&
723 strequal(domain_name, domain->alt_name))) {
733 struct winbindd_domain *find_domain_from_name(const char *domain_name)
735 struct winbindd_domain *domain;
737 domain = find_domain_from_name_noinit(domain_name);
742 if (!domain->initialized)
743 init_dc_connection(domain);
748 /* Given a domain sid, return the struct winbindd domain info for it */
750 struct winbindd_domain *find_domain_from_sid_noinit(const DOM_SID *sid)
752 struct winbindd_domain *domain;
754 /* Search through list */
756 for (domain = domain_list(); domain != NULL; domain = domain->next) {
757 if (sid_compare_domain(sid, &domain->sid) == 0)
766 /* Given a domain sid, return the struct winbindd domain info for it */
768 struct winbindd_domain *find_domain_from_sid(const DOM_SID *sid)
770 struct winbindd_domain *domain;
772 domain = find_domain_from_sid_noinit(sid);
777 if (!domain->initialized)
778 init_dc_connection(domain);
783 struct winbindd_domain *find_our_domain(void)
785 struct winbindd_domain *domain;
787 /* Search through list */
789 for (domain = domain_list(); domain != NULL; domain = domain->next) {
794 smb_panic("Could not find our domain");
798 struct winbindd_domain *find_root_domain(void)
800 struct winbindd_domain *ours = find_our_domain();
805 if ( strlen(ours->forest_name) == 0 )
808 return find_domain_from_name( ours->forest_name );
811 struct winbindd_domain *find_builtin_domain(void)
814 struct winbindd_domain *domain;
816 string_to_sid(&sid, "S-1-5-32");
817 domain = find_domain_from_sid(&sid);
819 if (domain == NULL) {
820 smb_panic("Could not find BUILTIN domain");
826 /* Find the appropriate domain to lookup a name or SID */
828 struct winbindd_domain *find_lookup_domain_from_sid(const DOM_SID *sid)
830 /* SIDs in the S-1-22-{1,2} domain should be handled by our passdb */
832 if ( sid_check_is_in_unix_groups(sid) ||
833 sid_check_is_unix_groups(sid) ||
834 sid_check_is_in_unix_users(sid) ||
835 sid_check_is_unix_users(sid) )
837 return find_domain_from_sid(get_global_sam_sid());
840 /* A DC can't ask the local smbd for remote SIDs, here winbindd is the
841 * one to contact the external DC's. On member servers the internal
842 * domains are different: These are part of the local SAM. */
844 DEBUG(10, ("find_lookup_domain_from_sid(%s)\n", sid_string_dbg(sid)));
846 if (IS_DC || is_internal_domain(sid) || is_in_internal_domain(sid)) {
847 DEBUG(10, ("calling find_domain_from_sid\n"));
848 return find_domain_from_sid(sid);
851 /* On a member server a query for SID or name can always go to our
854 DEBUG(10, ("calling find_our_domain\n"));
855 return find_our_domain();
858 struct winbindd_domain *find_lookup_domain_from_name(const char *domain_name)
860 if ( strequal(domain_name, unix_users_domain_name() ) ||
861 strequal(domain_name, unix_groups_domain_name() ) )
864 * The "Unix User" and "Unix Group" domain our handled by
867 return find_domain_from_name_noinit( get_global_sam_name() );
870 if (IS_DC || strequal(domain_name, "BUILTIN") ||
871 strequal(domain_name, get_global_sam_name()))
872 return find_domain_from_name_noinit(domain_name);
875 return find_our_domain();
878 /* Lookup a sid in a domain from a name */
880 bool winbindd_lookup_sid_by_name(TALLOC_CTX *mem_ctx,
881 enum winbindd_cmd orig_cmd,
882 struct winbindd_domain *domain,
883 const char *domain_name,
884 const char *name, DOM_SID *sid,
885 enum lsa_SidType *type)
890 * For all but LOOKUPNAME we have to avoid nss calls to avoid
893 result = domain->methods->name_to_sid(
894 domain, mem_ctx, domain_name, name,
895 orig_cmd == WINBINDD_LOOKUPNAME ? 0 : LOOKUP_NAME_NO_NSS,
898 /* Return sid and type if lookup successful */
899 if (!NT_STATUS_IS_OK(result)) {
900 *type = SID_NAME_UNKNOWN;
903 return NT_STATUS_IS_OK(result);
907 * @brief Lookup a name in a domain from a sid.
909 * @param sid Security ID you want to look up.
910 * @param name On success, set to the name corresponding to @p sid.
911 * @param dom_name On success, set to the 'domain name' corresponding to @p sid.
912 * @param type On success, contains the type of name: alias, group or
914 * @retval True if the name exists, in which case @p name and @p type
915 * are set, otherwise False.
917 bool winbindd_lookup_name_by_sid(TALLOC_CTX *mem_ctx,
918 struct winbindd_domain *domain,
922 enum lsa_SidType *type)
931 result = domain->methods->sid_to_name(domain, mem_ctx, sid, dom_name, name, type);
933 /* Return name and type if successful */
935 if (NT_STATUS_IS_OK(result)) {
939 *type = SID_NAME_UNKNOWN;
944 /* Free state information held for {set,get,end}{pw,gr}ent() functions */
946 void free_getent_state(struct getent_state *state)
948 struct getent_state *temp;
950 /* Iterate over state list */
954 while(temp != NULL) {
955 struct getent_state *next = temp->next;
957 /* Free sam entries then list entry */
959 SAFE_FREE(state->sam_entries);
960 DLIST_REMOVE(state, state);
967 /* Is this a domain which we may assume no DOMAIN\ prefix? */
969 static bool assume_domain(const char *domain)
971 /* never assume the domain on a standalone server */
973 if ( lp_server_role() == ROLE_STANDALONE )
976 /* domain member servers may possibly assume for the domain name */
978 if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
979 if ( !strequal(lp_workgroup(), domain) )
982 if ( lp_winbind_use_default_domain() || lp_winbind_trusted_domains_only() )
986 /* only left with a domain controller */
988 if ( strequal(get_global_sam_name(), domain) ) {
995 /* Parse a string of the form DOMAIN\user into a domain and a user */
997 bool parse_domain_user(const char *domuser, fstring domain, fstring user)
999 char *p = strchr(domuser,*lp_winbind_separator());
1002 fstrcpy(user, domuser);
1004 if ( assume_domain(lp_workgroup())) {
1005 fstrcpy(domain, lp_workgroup());
1006 } else if ((p = strchr(domuser, '@')) != NULL) {
1007 fstrcpy(domain, p + 1);
1008 user[PTR_DIFF(p, domuser)] = 0;
1014 fstrcpy(domain, domuser);
1015 domain[PTR_DIFF(p, domuser)] = 0;
1023 bool parse_domain_user_talloc(TALLOC_CTX *mem_ctx, const char *domuser,
1024 char **domain, char **user)
1026 fstring fstr_domain, fstr_user;
1027 if (!parse_domain_user(domuser, fstr_domain, fstr_user)) {
1030 *domain = talloc_strdup(mem_ctx, fstr_domain);
1031 *user = talloc_strdup(mem_ctx, fstr_user);
1032 return ((*domain != NULL) && (*user != NULL));
1035 /* add a domain user name to a buffer */
1036 void parse_add_domuser(void *buf, char *domuser, int *len)
1042 p = strchr(domuser, *lp_winbind_separator());
1046 fstrcpy(domain, domuser);
1047 domain[PTR_DIFF(p, domuser)] = 0;
1050 if (assume_domain(domain)) {
1053 *len -= (PTR_DIFF(p, domuser));
1057 safe_strcpy((char *)buf, user, *len);
1060 /* Ensure an incoming username from NSS is fully qualified. Replace the
1061 incoming fstring with DOMAIN <separator> user. Returns the same
1062 values as parse_domain_user() but also replaces the incoming username.
1063 Used to ensure all names are fully qualified within winbindd.
1064 Used by the NSS protocols of auth, chauthtok, logoff and ccache_ntlm_auth.
1065 The protocol definitions of auth_crap, chng_pswd_auth_crap
1066 really should be changed to use this instead of doing things
1069 bool canonicalize_username(fstring username_inout, fstring domain, fstring user)
1071 if (!parse_domain_user(username_inout, domain, user)) {
1074 slprintf(username_inout, sizeof(fstring) - 1, "%s%c%s",
1075 domain, *lp_winbind_separator(),
1081 Fill DOMAIN\\USERNAME entry accounting 'winbind use default domain' and
1082 'winbind separator' options.
1084 - omit DOMAIN when 'winbind use default domain = true' and DOMAIN is
1087 If we are a PDC or BDC, and this is for our domain, do likewise.
1089 Also, if omit DOMAIN if 'winbind trusted domains only = true', as the
1090 username is then unqualified in unix
1092 We always canonicalize as UPPERCASE DOMAIN, lowercase username.
1094 void fill_domain_username(fstring name, const char *domain, const char *user, bool can_assume)
1098 fstrcpy(tmp_user, user);
1099 strlower_m(tmp_user);
1101 if (can_assume && assume_domain(domain)) {
1102 strlcpy(name, tmp_user, sizeof(fstring));
1104 slprintf(name, sizeof(fstring) - 1, "%s%c%s",
1105 domain, *lp_winbind_separator(),
1111 * talloc version of fill_domain_username()
1112 * return NULL on talloc failure.
1114 char *fill_domain_username_talloc(TALLOC_CTX *mem_ctx,
1119 char *tmp_user, *name;
1121 tmp_user = talloc_strdup(mem_ctx, user);
1122 strlower_m(tmp_user);
1124 if (can_assume && assume_domain(domain)) {
1127 name = talloc_asprintf(mem_ctx, "%s%c%s",
1129 *lp_winbind_separator(),
1131 TALLOC_FREE(tmp_user);
1138 * Winbindd socket accessor functions
1141 const char *get_winbind_pipe_dir(void)
1143 return lp_parm_const_string(-1, "winbindd", "socket dir", WINBINDD_SOCKET_DIR);
1146 char *get_winbind_priv_pipe_dir(void)
1148 return lock_path(WINBINDD_PRIV_SOCKET_SUBDIR);
1151 /* Open the winbindd socket */
1153 static int _winbindd_socket = -1;
1154 static int _winbindd_priv_socket = -1;
1156 int open_winbindd_socket(void)
1158 if (_winbindd_socket == -1) {
1159 _winbindd_socket = create_pipe_sock(
1160 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME, 0755);
1161 DEBUG(10, ("open_winbindd_socket: opened socket fd %d\n",
1165 return _winbindd_socket;
1168 int open_winbindd_priv_socket(void)
1170 if (_winbindd_priv_socket == -1) {
1171 _winbindd_priv_socket = create_pipe_sock(
1172 get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
1173 DEBUG(10, ("open_winbindd_priv_socket: opened socket fd %d\n",
1174 _winbindd_priv_socket));
1177 return _winbindd_priv_socket;
1181 * Client list accessor functions
1184 static struct winbindd_cli_state *_client_list;
1185 static int _num_clients;
1187 /* Return list of all connected clients */
1189 struct winbindd_cli_state *winbindd_client_list(void)
1191 return _client_list;
1194 /* Add a connection to the list */
1196 void winbindd_add_client(struct winbindd_cli_state *cli)
1198 DLIST_ADD(_client_list, cli);
1202 /* Remove a client from the list */
1204 void winbindd_remove_client(struct winbindd_cli_state *cli)
1206 DLIST_REMOVE(_client_list, cli);
1210 /* Close all open clients */
1212 void winbindd_kill_all_clients(void)
1214 struct winbindd_cli_state *cl = winbindd_client_list();
1216 DEBUG(10, ("winbindd_kill_all_clients: going postal\n"));
1219 struct winbindd_cli_state *next;
1222 winbindd_remove_client(cl);
1227 /* Return number of open clients */
1229 int winbindd_num_clients(void)
1231 return _num_clients;
1234 NTSTATUS lookup_usergroups_cached(struct winbindd_domain *domain,
1235 TALLOC_CTX *mem_ctx,
1236 const DOM_SID *user_sid,
1237 uint32 *p_num_groups, DOM_SID **user_sids)
1239 struct netr_SamInfo3 *info3 = NULL;
1240 NTSTATUS status = NT_STATUS_NO_MEMORY;
1241 size_t num_groups = 0;
1243 DEBUG(3,(": lookup_usergroups_cached\n"));
1248 info3 = netsamlogon_cache_get(mem_ctx, user_sid);
1250 if (info3 == NULL) {
1251 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1254 if (info3->base.groups.count == 0) {
1256 return NT_STATUS_UNSUCCESSFUL;
1259 /* Skip Domain local groups outside our domain.
1260 We'll get these from the getsidaliases() RPC call. */
1261 status = sid_array_from_info3(mem_ctx, info3,
1266 if (!NT_STATUS_IS_OK(status)) {
1272 *p_num_groups = num_groups;
1273 status = (user_sids != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1275 DEBUG(3,(": lookup_usergroups_cached succeeded\n"));
1280 /*********************************************************************
1281 We use this to remove spaces from user and group names
1282 ********************************************************************/
1284 NTSTATUS normalize_name_map(TALLOC_CTX *mem_ctx,
1285 struct winbindd_domain *domain,
1291 if (!name || !normalized) {
1292 return NT_STATUS_INVALID_PARAMETER;
1295 if (!lp_winbind_normalize_names()) {
1296 return NT_STATUS_PROCEDURE_NOT_FOUND;
1299 /* Alias support and whitespace replacement are mutually
1302 nt_status = resolve_username_to_alias(mem_ctx, domain,
1304 if (NT_STATUS_IS_OK(nt_status)) {
1305 /* special return code to let the caller know we
1306 mapped to an alias */
1307 return NT_STATUS_FILE_RENAMED;
1310 /* check for an unreachable domain */
1312 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
1313 DEBUG(5,("normalize_name_map: Setting domain %s offline\n",
1315 set_domain_offline(domain);
1319 /* deal with whitespace */
1321 *normalized = talloc_strdup(mem_ctx, name);
1322 if (!(*normalized)) {
1323 return NT_STATUS_NO_MEMORY;
1326 all_string_sub( *normalized, " ", "_", 0 );
1328 return NT_STATUS_OK;
1331 /*********************************************************************
1332 We use this to do the inverse of normalize_name_map()
1333 ********************************************************************/
1335 NTSTATUS normalize_name_unmap(TALLOC_CTX *mem_ctx,
1340 struct winbindd_domain *domain = find_our_domain();
1342 if (!name || !normalized) {
1343 return NT_STATUS_INVALID_PARAMETER;
1346 if (!lp_winbind_normalize_names()) {
1347 return NT_STATUS_PROCEDURE_NOT_FOUND;
1350 /* Alias support and whitespace replacement are mutally
1353 /* When mapping from an alias to a username, we don't know the
1354 domain. But we only need a domain structure to cache
1355 a successful lookup , so just our own domain structure for
1358 nt_status = resolve_alias_to_username(mem_ctx, domain,
1360 if (NT_STATUS_IS_OK(nt_status)) {
1361 /* Special return code to let the caller know we mapped
1363 return NT_STATUS_FILE_RENAMED;
1366 /* check for an unreachable domain */
1368 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
1369 DEBUG(5,("normalize_name_unmap: Setting domain %s offline\n",
1371 set_domain_offline(domain);
1375 /* deal with whitespace */
1377 *normalized = talloc_strdup(mem_ctx, name);
1378 if (!(*normalized)) {
1379 return NT_STATUS_NO_MEMORY;
1382 all_string_sub(*normalized, "_", " ", 0);
1384 return NT_STATUS_OK;
1387 /*********************************************************************
1388 ********************************************************************/
1390 bool winbindd_can_contact_domain(struct winbindd_domain *domain)
1392 struct winbindd_tdc_domain *tdc = NULL;
1393 TALLOC_CTX *frame = talloc_stackframe();
1396 /* We can contact the domain if it is our primary domain */
1398 if (domain->primary) {
1402 /* Trust the TDC cache and not the winbindd_domain flags */
1404 if ((tdc = wcache_tdc_fetch_domain(frame, domain->name)) == NULL) {
1405 DEBUG(10,("winbindd_can_contact_domain: %s not found in cache\n",
1410 /* Can always contact a domain that is in out forest */
1412 if (tdc->trust_flags & NETR_TRUST_FLAG_IN_FOREST) {
1418 * On a _member_ server, we cannot contact the domain if it
1419 * is running AD and we have no inbound trust.
1423 domain->active_directory &&
1424 ((tdc->trust_flags & NETR_TRUST_FLAG_INBOUND) != NETR_TRUST_FLAG_INBOUND))
1426 DEBUG(10, ("winbindd_can_contact_domain: %s is an AD domain "
1427 "and we have no inbound trust.\n", domain->name));
1431 /* Assume everything else is ok (probably not true but what
1437 talloc_destroy(frame);
1442 /*********************************************************************
1443 ********************************************************************/
1445 bool winbindd_internal_child(struct winbindd_child *child)
1447 if ((child == idmap_child()) || (child == locator_child())) {
1454 #ifdef HAVE_KRB5_LOCATE_PLUGIN_H
1456 /*********************************************************************
1457 ********************************************************************/
1459 static void winbindd_set_locator_kdc_env(const struct winbindd_domain *domain)
1462 char addr[INET6_ADDRSTRLEN];
1463 const char *kdc = NULL;
1466 if (!domain || !domain->alt_name || !*domain->alt_name) {
1470 if (domain->initialized && !domain->active_directory) {
1471 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s not AD\n",
1476 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
1479 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s no DC IP\n",
1481 kdc = domain->dcname;
1484 if (!kdc || !*kdc) {
1485 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s no DC at all\n",
1490 if (asprintf_strupper_m(&var, "%s_%s", WINBINDD_LOCATOR_KDC_ADDRESS,
1491 domain->alt_name) == -1) {
1495 DEBUG(lvl,("winbindd_set_locator_kdc_env: setting var: %s to: %s\n",
1498 setenv(var, kdc, 1);
1502 /*********************************************************************
1503 ********************************************************************/
1505 void winbindd_set_locator_kdc_envs(const struct winbindd_domain *domain)
1507 struct winbindd_domain *our_dom = find_our_domain();
1509 winbindd_set_locator_kdc_env(domain);
1511 if (domain != our_dom) {
1512 winbindd_set_locator_kdc_env(our_dom);
1516 /*********************************************************************
1517 ********************************************************************/
1519 void winbindd_unset_locator_kdc_env(const struct winbindd_domain *domain)
1523 if (!domain || !domain->alt_name || !*domain->alt_name) {
1527 if (asprintf_strupper_m(&var, "%s_%s", WINBINDD_LOCATOR_KDC_ADDRESS,
1528 domain->alt_name) == -1) {
1537 void winbindd_set_locator_kdc_envs(const struct winbindd_domain *domain)
1542 void winbindd_unset_locator_kdc_env(const struct winbindd_domain *domain)
1547 #endif /* HAVE_KRB5_LOCATE_PLUGIN_H */
1549 void set_auth_errors(struct winbindd_response *resp, NTSTATUS result)
1551 resp->data.auth.nt_status = NT_STATUS_V(result);
1552 fstrcpy(resp->data.auth.nt_status_string, nt_errstr(result));
1554 /* we might have given a more useful error above */
1555 if (*resp->data.auth.error_string == '\0')
1556 fstrcpy(resp->data.auth.error_string,
1557 get_friendly_nt_error_msg(result));
1558 resp->data.auth.pam_error = nt_status_to_pam(result);