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 result = domain->methods->name_to_sid(domain, mem_ctx, orig_cmd,
891 domain_name, name, sid, type);
893 /* Return sid and type if lookup successful */
894 if (!NT_STATUS_IS_OK(result)) {
895 *type = SID_NAME_UNKNOWN;
898 return NT_STATUS_IS_OK(result);
902 * @brief Lookup a name in a domain from a sid.
904 * @param sid Security ID you want to look up.
905 * @param name On success, set to the name corresponding to @p sid.
906 * @param dom_name On success, set to the 'domain name' corresponding to @p sid.
907 * @param type On success, contains the type of name: alias, group or
909 * @retval True if the name exists, in which case @p name and @p type
910 * are set, otherwise False.
912 bool winbindd_lookup_name_by_sid(TALLOC_CTX *mem_ctx,
913 struct winbindd_domain *domain,
917 enum lsa_SidType *type)
926 result = domain->methods->sid_to_name(domain, mem_ctx, sid, dom_name, name, type);
928 /* Return name and type if successful */
930 if (NT_STATUS_IS_OK(result)) {
934 *type = SID_NAME_UNKNOWN;
939 /* Free state information held for {set,get,end}{pw,gr}ent() functions */
941 void free_getent_state(struct getent_state *state)
943 struct getent_state *temp;
945 /* Iterate over state list */
949 while(temp != NULL) {
950 struct getent_state *next = temp->next;
952 /* Free sam entries then list entry */
954 SAFE_FREE(state->sam_entries);
955 DLIST_REMOVE(state, state);
962 /* Is this a domain which we may assume no DOMAIN\ prefix? */
964 static bool assume_domain(const char *domain)
966 /* never assume the domain on a standalone server */
968 if ( lp_server_role() == ROLE_STANDALONE )
971 /* domain member servers may possibly assume for the domain name */
973 if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
974 if ( !strequal(lp_workgroup(), domain) )
977 if ( lp_winbind_use_default_domain() || lp_winbind_trusted_domains_only() )
981 /* only left with a domain controller */
983 if ( strequal(get_global_sam_name(), domain) ) {
990 /* Parse a string of the form DOMAIN\user into a domain and a user */
992 bool parse_domain_user(const char *domuser, fstring domain, fstring user)
994 char *p = strchr(domuser,*lp_winbind_separator());
997 fstrcpy(user, domuser);
999 if ( assume_domain(lp_workgroup())) {
1000 fstrcpy(domain, lp_workgroup());
1001 } else if ((p = strchr(domuser, '@')) != NULL) {
1002 fstrcpy(domain, p + 1);
1003 user[PTR_DIFF(p, domuser)] = 0;
1009 fstrcpy(domain, domuser);
1010 domain[PTR_DIFF(p, domuser)] = 0;
1018 bool parse_domain_user_talloc(TALLOC_CTX *mem_ctx, const char *domuser,
1019 char **domain, char **user)
1021 fstring fstr_domain, fstr_user;
1022 if (!parse_domain_user(domuser, fstr_domain, fstr_user)) {
1025 *domain = talloc_strdup(mem_ctx, fstr_domain);
1026 *user = talloc_strdup(mem_ctx, fstr_user);
1027 return ((*domain != NULL) && (*user != NULL));
1030 /* add a domain user name to a buffer */
1031 void parse_add_domuser(void *buf, char *domuser, int *len)
1037 p = strchr(domuser, *lp_winbind_separator());
1041 fstrcpy(domain, domuser);
1042 domain[PTR_DIFF(p, domuser)] = 0;
1045 if (assume_domain(domain)) {
1048 *len -= (PTR_DIFF(p, domuser));
1052 safe_strcpy((char *)buf, user, *len);
1055 /* Ensure an incoming username from NSS is fully qualified. Replace the
1056 incoming fstring with DOMAIN <separator> user. Returns the same
1057 values as parse_domain_user() but also replaces the incoming username.
1058 Used to ensure all names are fully qualified within winbindd.
1059 Used by the NSS protocols of auth, chauthtok, logoff and ccache_ntlm_auth.
1060 The protocol definitions of auth_crap, chng_pswd_auth_crap
1061 really should be changed to use this instead of doing things
1064 bool canonicalize_username(fstring username_inout, fstring domain, fstring user)
1066 if (!parse_domain_user(username_inout, domain, user)) {
1069 slprintf(username_inout, sizeof(fstring) - 1, "%s%c%s",
1070 domain, *lp_winbind_separator(),
1076 Fill DOMAIN\\USERNAME entry accounting 'winbind use default domain' and
1077 'winbind separator' options.
1079 - omit DOMAIN when 'winbind use default domain = true' and DOMAIN is
1082 If we are a PDC or BDC, and this is for our domain, do likewise.
1084 Also, if omit DOMAIN if 'winbind trusted domains only = true', as the
1085 username is then unqualified in unix
1087 We always canonicalize as UPPERCASE DOMAIN, lowercase username.
1089 void fill_domain_username(fstring name, const char *domain, const char *user, bool can_assume)
1093 fstrcpy(tmp_user, user);
1094 strlower_m(tmp_user);
1096 if (can_assume && assume_domain(domain)) {
1097 strlcpy(name, tmp_user, sizeof(fstring));
1099 slprintf(name, sizeof(fstring) - 1, "%s%c%s",
1100 domain, *lp_winbind_separator(),
1106 * talloc version of fill_domain_username()
1107 * return NULL on talloc failure.
1109 char *fill_domain_username_talloc(TALLOC_CTX *mem_ctx,
1114 char *tmp_user, *name;
1116 tmp_user = talloc_strdup(mem_ctx, user);
1117 strlower_m(tmp_user);
1119 if (can_assume && assume_domain(domain)) {
1122 name = talloc_asprintf(mem_ctx, "%s%c%s",
1124 *lp_winbind_separator(),
1126 TALLOC_FREE(tmp_user);
1133 * Winbindd socket accessor functions
1136 const char *get_winbind_pipe_dir(void)
1138 return lp_parm_const_string(-1, "winbindd", "socket dir", WINBINDD_SOCKET_DIR);
1141 char *get_winbind_priv_pipe_dir(void)
1143 return lock_path(WINBINDD_PRIV_SOCKET_SUBDIR);
1146 /* Open the winbindd socket */
1148 static int _winbindd_socket = -1;
1149 static int _winbindd_priv_socket = -1;
1151 int open_winbindd_socket(void)
1153 if (_winbindd_socket == -1) {
1154 _winbindd_socket = create_pipe_sock(
1155 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME, 0755);
1156 DEBUG(10, ("open_winbindd_socket: opened socket fd %d\n",
1160 return _winbindd_socket;
1163 int open_winbindd_priv_socket(void)
1165 if (_winbindd_priv_socket == -1) {
1166 _winbindd_priv_socket = create_pipe_sock(
1167 get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
1168 DEBUG(10, ("open_winbindd_priv_socket: opened socket fd %d\n",
1169 _winbindd_priv_socket));
1172 return _winbindd_priv_socket;
1176 * Client list accessor functions
1179 static struct winbindd_cli_state *_client_list;
1180 static int _num_clients;
1182 /* Return list of all connected clients */
1184 struct winbindd_cli_state *winbindd_client_list(void)
1186 return _client_list;
1189 /* Add a connection to the list */
1191 void winbindd_add_client(struct winbindd_cli_state *cli)
1193 DLIST_ADD(_client_list, cli);
1197 /* Remove a client from the list */
1199 void winbindd_remove_client(struct winbindd_cli_state *cli)
1201 DLIST_REMOVE(_client_list, cli);
1205 /* Close all open clients */
1207 void winbindd_kill_all_clients(void)
1209 struct winbindd_cli_state *cl = winbindd_client_list();
1211 DEBUG(10, ("winbindd_kill_all_clients: going postal\n"));
1214 struct winbindd_cli_state *next;
1217 winbindd_remove_client(cl);
1222 /* Return number of open clients */
1224 int winbindd_num_clients(void)
1226 return _num_clients;
1229 NTSTATUS lookup_usergroups_cached(struct winbindd_domain *domain,
1230 TALLOC_CTX *mem_ctx,
1231 const DOM_SID *user_sid,
1232 uint32 *p_num_groups, DOM_SID **user_sids)
1234 struct netr_SamInfo3 *info3 = NULL;
1235 NTSTATUS status = NT_STATUS_NO_MEMORY;
1236 size_t num_groups = 0;
1238 DEBUG(3,(": lookup_usergroups_cached\n"));
1243 info3 = netsamlogon_cache_get(mem_ctx, user_sid);
1245 if (info3 == NULL) {
1246 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1249 if (info3->base.groups.count == 0) {
1251 return NT_STATUS_UNSUCCESSFUL;
1254 /* Skip Domain local groups outside our domain.
1255 We'll get these from the getsidaliases() RPC call. */
1256 status = sid_array_from_info3(mem_ctx, info3,
1261 if (!NT_STATUS_IS_OK(status)) {
1267 *p_num_groups = num_groups;
1268 status = (user_sids != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1270 DEBUG(3,(": lookup_usergroups_cached succeeded\n"));
1275 /*********************************************************************
1276 We use this to remove spaces from user and group names
1277 ********************************************************************/
1279 NTSTATUS normalize_name_map(TALLOC_CTX *mem_ctx,
1280 struct winbindd_domain *domain,
1286 if (!name || !normalized) {
1287 return NT_STATUS_INVALID_PARAMETER;
1290 if (!lp_winbind_normalize_names()) {
1291 return NT_STATUS_PROCEDURE_NOT_FOUND;
1294 /* Alias support and whitespace replacement are mutually
1297 nt_status = resolve_username_to_alias(mem_ctx, domain,
1299 if (NT_STATUS_IS_OK(nt_status)) {
1300 /* special return code to let the caller know we
1301 mapped to an alias */
1302 return NT_STATUS_FILE_RENAMED;
1305 /* check for an unreachable domain */
1307 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
1308 DEBUG(5,("normalize_name_map: Setting domain %s offline\n",
1310 set_domain_offline(domain);
1314 /* deal with whitespace */
1316 *normalized = talloc_strdup(mem_ctx, name);
1317 if (!(*normalized)) {
1318 return NT_STATUS_NO_MEMORY;
1321 all_string_sub( *normalized, " ", "_", 0 );
1323 return NT_STATUS_OK;
1326 /*********************************************************************
1327 We use this to do the inverse of normalize_name_map()
1328 ********************************************************************/
1330 NTSTATUS normalize_name_unmap(TALLOC_CTX *mem_ctx,
1335 struct winbindd_domain *domain = find_our_domain();
1337 if (!name || !normalized) {
1338 return NT_STATUS_INVALID_PARAMETER;
1341 if (!lp_winbind_normalize_names()) {
1342 return NT_STATUS_PROCEDURE_NOT_FOUND;
1345 /* Alias support and whitespace replacement are mutally
1348 /* When mapping from an alias to a username, we don't know the
1349 domain. But we only need a domain structure to cache
1350 a successful lookup , so just our own domain structure for
1353 nt_status = resolve_alias_to_username(mem_ctx, domain,
1355 if (NT_STATUS_IS_OK(nt_status)) {
1356 /* Special return code to let the caller know we mapped
1358 return NT_STATUS_FILE_RENAMED;
1361 /* check for an unreachable domain */
1363 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
1364 DEBUG(5,("normalize_name_unmap: Setting domain %s offline\n",
1366 set_domain_offline(domain);
1370 /* deal with whitespace */
1372 *normalized = talloc_strdup(mem_ctx, name);
1373 if (!(*normalized)) {
1374 return NT_STATUS_NO_MEMORY;
1377 all_string_sub(*normalized, "_", " ", 0);
1379 return NT_STATUS_OK;
1382 /*********************************************************************
1383 ********************************************************************/
1385 bool winbindd_can_contact_domain(struct winbindd_domain *domain)
1387 struct winbindd_tdc_domain *tdc = NULL;
1388 TALLOC_CTX *frame = talloc_stackframe();
1391 /* We can contact the domain if it is our primary domain */
1393 if (domain->primary) {
1397 /* Trust the TDC cache and not the winbindd_domain flags */
1399 if ((tdc = wcache_tdc_fetch_domain(frame, domain->name)) == NULL) {
1400 DEBUG(10,("winbindd_can_contact_domain: %s not found in cache\n",
1405 /* Can always contact a domain that is in out forest */
1407 if (tdc->trust_flags & NETR_TRUST_FLAG_IN_FOREST) {
1413 * On a _member_ server, we cannot contact the domain if it
1414 * is running AD and we have no inbound trust.
1418 domain->active_directory &&
1419 ((tdc->trust_flags & NETR_TRUST_FLAG_INBOUND) != NETR_TRUST_FLAG_INBOUND))
1421 DEBUG(10, ("winbindd_can_contact_domain: %s is an AD domain "
1422 "and we have no inbound trust.\n", domain->name));
1426 /* Assume everything else is ok (probably not true but what
1432 talloc_destroy(frame);
1437 /*********************************************************************
1438 ********************************************************************/
1440 bool winbindd_internal_child(struct winbindd_child *child)
1442 if ((child == idmap_child()) || (child == locator_child())) {
1449 #ifdef HAVE_KRB5_LOCATE_PLUGIN_H
1451 /*********************************************************************
1452 ********************************************************************/
1454 static void winbindd_set_locator_kdc_env(const struct winbindd_domain *domain)
1457 char addr[INET6_ADDRSTRLEN];
1458 const char *kdc = NULL;
1461 if (!domain || !domain->alt_name || !*domain->alt_name) {
1465 if (domain->initialized && !domain->active_directory) {
1466 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s not AD\n",
1471 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
1474 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s no DC IP\n",
1476 kdc = domain->dcname;
1479 if (!kdc || !*kdc) {
1480 DEBUG(lvl,("winbindd_set_locator_kdc_env: %s no DC at all\n",
1485 if (asprintf_strupper_m(&var, "%s_%s", WINBINDD_LOCATOR_KDC_ADDRESS,
1486 domain->alt_name) == -1) {
1490 DEBUG(lvl,("winbindd_set_locator_kdc_env: setting var: %s to: %s\n",
1493 setenv(var, kdc, 1);
1497 /*********************************************************************
1498 ********************************************************************/
1500 void winbindd_set_locator_kdc_envs(const struct winbindd_domain *domain)
1502 struct winbindd_domain *our_dom = find_our_domain();
1504 winbindd_set_locator_kdc_env(domain);
1506 if (domain != our_dom) {
1507 winbindd_set_locator_kdc_env(our_dom);
1511 /*********************************************************************
1512 ********************************************************************/
1514 void winbindd_unset_locator_kdc_env(const struct winbindd_domain *domain)
1518 if (!domain || !domain->alt_name || !*domain->alt_name) {
1522 if (asprintf_strupper_m(&var, "%s_%s", WINBINDD_LOCATOR_KDC_ADDRESS,
1523 domain->alt_name) == -1) {
1532 void winbindd_set_locator_kdc_envs(const struct winbindd_domain *domain)
1537 void winbindd_unset_locator_kdc_env(const struct winbindd_domain *domain)
1542 #endif /* HAVE_KRB5_LOCATE_PLUGIN_H */
1544 void set_auth_errors(struct winbindd_response *resp, NTSTATUS result)
1546 resp->data.auth.nt_status = NT_STATUS_V(result);
1547 fstrcpy(resp->data.auth.nt_status_string, nt_errstr(result));
1549 /* we might have given a more useful error above */
1550 if (*resp->data.auth.error_string == '\0')
1551 fstrcpy(resp->data.auth.error_string,
1552 get_friendly_nt_error_msg(result));
1553 resp->data.auth.pam_error = nt_status_to_pam(result);