2 Unix SMB/CIFS implementation.
4 Winbind daemon for ntdom nss module
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jeremy Allison 2001.
8 Copyright (C) Gerald (Jerry) Carter 2003.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 extern BOOL opt_nocache;
31 #define DBGC_CLASS DBGC_WINBIND
33 /*********************************************************************
34 *********************************************************************/
36 static int gr_mem_buffer( char **buffer, char **members, int num_members )
42 if ( num_members == 0 ) {
47 for ( i=0; i<num_members; i++ )
48 len += strlen(members[i])+1;
50 *buffer = (char*)smb_xmalloc(len);
51 for ( i=0; i<num_members; i++ ) {
52 snprintf( &(*buffer)[idx], len-idx, "%s,", members[i]);
53 idx += strlen(members[i])+1;
55 /* terminate with NULL */
56 (*buffer)[len-1] = '\0';
61 /***************************************************************
62 Empty static struct for negative caching.
63 ****************************************************************/
65 /* Fill a grent structure from various other information */
67 static BOOL fill_grent(struct winbindd_gr *gr, const char *dom_name,
68 const char *gr_name, gid_t unix_gid)
70 fstring full_group_name;
72 fill_domain_username(full_group_name, dom_name, gr_name);
74 gr->gr_gid = unix_gid;
76 /* Group name and password */
78 safe_strcpy(gr->gr_name, full_group_name, sizeof(gr->gr_name) - 1);
79 safe_strcpy(gr->gr_passwd, "x", sizeof(gr->gr_passwd) - 1);
84 /* Fill in the group membership field of a NT group given by group_sid */
86 static BOOL fill_grent_mem(struct winbindd_domain *domain,
88 enum SID_NAME_USE group_name_type,
89 int *num_gr_mem, char **gr_mem, int *gr_mem_len)
91 DOM_SID **sid_mem = NULL;
93 uint32 *name_types = NULL;
94 unsigned int buf_len, buf_ndx, i;
95 char **names = NULL, *buf;
101 if (!(mem_ctx = talloc_init("fill_grent_mem(%s)", domain->name)))
104 /* Initialise group membership information */
106 DEBUG(10, ("group SID %s\n", sid_to_string(sid_string, group_sid)));
110 /* HACK ALERT!! This whole routine does not cope with group members
111 * from more than one domain, ie aliases. Thus we have to work it out
112 * ourselves in a special routine. */
114 if (domain->internal)
115 return fill_passdb_alias_grmem(domain, group_sid,
119 if ( !((group_name_type==SID_NAME_DOM_GRP) ||
120 ((group_name_type==SID_NAME_ALIAS) && domain->primary)) )
122 DEBUG(1, ("SID %s in domain %s isn't a domain group (%d)\n",
123 sid_to_string(sid_string, group_sid), domain->name,
128 /* Lookup group members */
129 status = domain->methods->lookup_groupmem(domain, mem_ctx, group_sid, &num_names,
130 &sid_mem, &names, &name_types);
131 if (!NT_STATUS_IS_OK(status)) {
132 DEBUG(1, ("could not lookup membership for group rid %s in domain %s (error: %s)\n",
133 sid_to_string(sid_string, group_sid), domain->name, nt_errstr(status)));
138 DEBUG(10, ("looked up %d names\n", num_names));
140 if (DEBUGLEVEL >= 10) {
141 for (i = 0; i < num_names; i++)
142 DEBUG(10, ("\t%20s %s %d\n", names[i], sid_to_string(sid_string, sid_mem[i]),
146 /* Add members to list */
149 buf_len = buf_ndx = 0;
153 for (i = 0; i < num_names; i++) {
160 DEBUG(10, ("processing name %s\n", the_name));
162 /* FIXME: need to cope with groups within groups. These
163 occur in Universal groups on a Windows 2000 native mode
166 /* make sure to allow machine accounts */
168 if (name_types[i] != SID_NAME_USER && name_types[i] != SID_NAME_COMPUTER) {
169 DEBUG(3, ("name %s isn't a domain user\n", the_name));
173 /* Append domain name */
175 fill_domain_username(name, domain->name, the_name);
179 /* Add to list or calculate buffer length */
182 buf_len += len + 1; /* List is comma separated */
184 DEBUG(10, ("buf_len + %d = %d\n", len + 1, buf_len));
186 DEBUG(10, ("appending %s at ndx %d\n", name, len));
187 safe_strcpy(&buf[buf_ndx], name, len);
194 /* Allocate buffer */
196 if (!buf && buf_len != 0) {
197 if (!(buf = malloc(buf_len))) {
198 DEBUG(1, ("out of memory\n"));
202 memset(buf, 0, buf_len);
206 if (buf && buf_ndx > 0) {
207 buf[buf_ndx - 1] = '\0';
211 *gr_mem_len = buf_len;
213 DEBUG(10, ("num_mem = %d, len = %d, mem = %s\n", *num_gr_mem,
214 buf_len, *num_gr_mem ? buf : "NULL"));
219 talloc_destroy(mem_ctx);
221 DEBUG(10, ("fill_grent_mem returning %d\n", result));
226 /* Return a group structure from a group name */
228 enum winbindd_result winbindd_getgrnam(struct winbindd_cli_state *state)
232 struct winbindd_domain *domain;
233 enum SID_NAME_USE name_type;
234 fstring name_domain, name_group;
239 /* Ensure null termination */
240 state->request.data.groupname[sizeof(state->request.data.groupname)-1]='\0';
242 DEBUG(3, ("[%5lu]: getgrnam %s\n", (unsigned long)state->pid,
243 state->request.data.groupname));
245 /* Parse domain and groupname */
247 memset(name_group, 0, sizeof(fstring));
249 tmp = state->request.data.groupname;
251 parse_domain_user(tmp, name_domain, name_group);
253 /* if no domain or our local domain, then do a local tdb search */
255 if ( (!*name_domain || strequal(name_domain, get_global_sam_name())) &&
256 ((grp = wb_getgrnam(name_group)) != NULL) ) {
260 memcpy( &state->response.data.gr, grp, sizeof(WINBINDD_GR) );
262 gr_mem_len = gr_mem_buffer( &buffer, grp->gr_mem, grp->num_gr_mem );
264 state->response.data.gr.gr_mem_ofs = 0;
265 state->response.length += gr_mem_len;
266 state->response.extra_data = buffer; /* give the memory away */
271 /* if no domain or our local domain and no local tdb group, default to
272 * our local domain for aliases */
274 if ( !*name_domain || strequal(name_domain, get_global_sam_name()) ) {
275 fstrcpy(name_domain, get_global_sam_name());
278 /* Get info for the domain */
280 if ((domain = find_domain_from_name(name_domain)) == NULL) {
281 DEBUG(3, ("could not get domain sid for domain %s\n",
283 return WINBINDD_ERROR;
285 /* should we deal with users for our domain? */
287 if ( lp_winbind_trusted_domains_only() && domain->primary) {
288 DEBUG(7,("winbindd_getgrnam: My domain -- rejecting getgrnam() for %s\\%s.\n",
289 name_domain, name_group));
290 return WINBINDD_ERROR;
293 /* Get rid and name type from name */
295 if (!winbindd_lookup_sid_by_name(domain, domain->name, name_group, &group_sid,
297 DEBUG(1, ("group %s in domain %s does not exist\n",
298 name_group, name_domain));
299 return WINBINDD_ERROR;
302 if ( !((name_type==SID_NAME_DOM_GRP) ||
303 ((name_type==SID_NAME_ALIAS) && domain->primary) ||
304 ((name_type==SID_NAME_ALIAS) && domain->internal)) )
306 DEBUG(1, ("name '%s' is not a local or domain group: %d\n",
307 name_group, name_type));
308 return WINBINDD_ERROR;
311 if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &gid, 0))) {
312 DEBUG(1, ("error converting unix gid to sid\n"));
313 return WINBINDD_ERROR;
316 if (!fill_grent(&state->response.data.gr, name_domain,
318 !fill_grent_mem(domain, &group_sid, name_type,
319 &state->response.data.gr.num_gr_mem,
320 &gr_mem, &gr_mem_len)) {
321 return WINBINDD_ERROR;
324 /* Group membership lives at start of extra data */
326 state->response.data.gr.gr_mem_ofs = 0;
328 state->response.length += gr_mem_len;
329 state->response.extra_data = gr_mem;
334 /* Return a group structure from a gid number */
336 enum winbindd_result winbindd_getgrgid(struct winbindd_cli_state *state)
338 struct winbindd_domain *domain;
341 enum SID_NAME_USE name_type;
347 DEBUG(3, ("[%5lu]: getgrgid %lu\n", (unsigned long)state->pid,
348 (unsigned long)state->request.data.gid));
350 /* Bug out if the gid isn't in the winbind range */
352 if ((state->request.data.gid < server_state.gid_low) ||
353 (state->request.data.gid > server_state.gid_high))
354 return WINBINDD_ERROR;
356 /* alway try local tdb lookup first */
357 if ( ( grp=wb_getgrgid(state->request.data.gid)) != NULL ) {
360 memcpy( &state->response.data.gr, grp, sizeof(WINBINDD_GR) );
362 gr_mem_len = gr_mem_buffer( &buffer, grp->gr_mem, grp->num_gr_mem );
364 state->response.data.gr.gr_mem_ofs = 0;
365 state->response.length += gr_mem_len;
366 state->response.extra_data = buffer; /* give away the memory */
371 /* Get rid from gid */
372 if (!NT_STATUS_IS_OK(idmap_gid_to_sid(&group_sid, state->request.data.gid))) {
373 DEBUG(1, ("could not convert gid %lu to rid\n",
374 (unsigned long)state->request.data.gid));
375 return WINBINDD_ERROR;
378 /* Get name from sid */
380 if (!winbindd_lookup_name_by_sid(&group_sid, dom_name, group_name, &name_type)) {
381 DEBUG(1, ("could not lookup sid\n"));
382 return WINBINDD_ERROR;
385 /* Fill in group structure */
387 domain = find_domain_from_sid(&group_sid);
390 DEBUG(1,("Can't find domain from sid\n"));
391 return WINBINDD_ERROR;
394 if ( !((name_type==SID_NAME_DOM_GRP) ||
395 ((name_type==SID_NAME_ALIAS) && domain->primary) ||
396 ((name_type==SID_NAME_ALIAS) && domain->internal)) )
398 DEBUG(1, ("name '%s' is not a local or domain group: %d\n",
399 group_name, name_type));
400 return WINBINDD_ERROR;
403 if (!fill_grent(&state->response.data.gr, dom_name, group_name,
404 state->request.data.gid) ||
405 !fill_grent_mem(domain, &group_sid, name_type,
406 &state->response.data.gr.num_gr_mem,
407 &gr_mem, &gr_mem_len))
408 return WINBINDD_ERROR;
410 /* Group membership lives at start of extra data */
412 state->response.data.gr.gr_mem_ofs = 0;
414 state->response.length += gr_mem_len;
415 state->response.extra_data = gr_mem;
421 * set/get/endgrent functions
424 /* "Rewind" file pointer for group database enumeration */
426 enum winbindd_result winbindd_setgrent(struct winbindd_cli_state *state)
428 struct winbindd_domain *domain;
430 DEBUG(3, ("[%5lu]: setgrent\n", (unsigned long)state->pid));
432 /* Check user has enabled this */
434 if (!lp_winbind_enum_groups())
435 return WINBINDD_ERROR;
437 /* Free old static data if it exists */
439 if (state->getgrent_state != NULL) {
440 free_getent_state(state->getgrent_state);
441 state->getgrent_state = NULL;
444 /* Create sam pipes for each domain we know about */
446 for (domain = domain_list(); domain != NULL; domain = domain->next) {
447 struct getent_state *domain_state;
449 /* Create a state record for this domain */
451 /* don't add our domaina if we are a PDC or if we
452 are a member of a Samba domain */
454 if ( lp_winbind_trusted_domains_only() && domain->primary )
460 if ((domain_state = (struct getent_state *)
461 malloc(sizeof(struct getent_state))) == NULL) {
462 DEBUG(1, ("winbindd_setgrent: malloc failed for domain_state!\n"));
463 return WINBINDD_ERROR;
466 ZERO_STRUCTP(domain_state);
468 fstrcpy(domain_state->domain_name, domain->name);
470 /* Add to list of open domains */
472 DLIST_ADD(state->getgrent_state, domain_state);
475 state->getgrent_initialized = True;
480 /* Close file pointer to ntdom group database */
482 enum winbindd_result winbindd_endgrent(struct winbindd_cli_state *state)
484 DEBUG(3, ("[%5lu]: endgrent\n", (unsigned long)state->pid));
486 free_getent_state(state->getgrent_state);
487 state->getgrent_initialized = False;
488 state->getgrent_state = NULL;
493 /* Get the list of domain groups and domain aliases for a domain. We fill in
494 the sam_entries and num_sam_entries fields with domain group information.
495 The dispinfo_ndx field is incremented to the index of the next group to
496 fetch. Return True if some groups were returned, False otherwise. */
498 #define MAX_FETCH_SAM_ENTRIES 100
500 static BOOL get_sam_group_entries(struct getent_state *ent)
504 struct acct_info *name_list = NULL, *tmp_name_list = NULL;
507 struct acct_info *sam_grp_entries = NULL;
508 struct winbindd_domain *domain;
510 if (ent->got_sam_entries)
513 if (!(mem_ctx = talloc_init("get_sam_group_entries(%s)",
514 ent->domain_name))) {
515 DEBUG(1, ("get_sam_group_entries: could not create talloc context!\n"));
519 /* Free any existing group info */
521 SAFE_FREE(ent->sam_entries);
522 ent->num_sam_entries = 0;
523 ent->got_sam_entries = True;
525 /* Enumerate domain groups */
529 if (!(domain = find_domain_from_name(ent->domain_name))) {
530 DEBUG(3, ("no such domain %s in get_sam_group_entries\n", ent->domain_name));
534 /* always get the domain global groups */
536 status = domain->methods->enum_dom_groups(domain, mem_ctx, &num_entries, &sam_grp_entries);
538 if (!NT_STATUS_IS_OK(status)) {
539 DEBUG(3, ("get_sam_group_entries: could not enumerate domain groups! Error: %s\n", nt_errstr(status)));
544 /* Copy entries into return buffer */
547 if ( !(name_list = malloc(sizeof(struct acct_info) * num_entries)) ) {
548 DEBUG(0,("get_sam_group_entries: Failed to malloc memory for %d domain groups!\n",
553 memcpy( name_list, sam_grp_entries, num_entries * sizeof(struct acct_info) );
556 ent->num_sam_entries = num_entries;
558 /* get the domain local groups if we are a member of a native win2k domain
559 and are not using LDAP to get the groups */
561 if ( ( lp_security() != SEC_ADS && domain->native_mode
562 && domain->primary) || domain->internal )
564 DEBUG(4,("get_sam_group_entries: Native Mode 2k domain; enumerating local groups as well\n"));
566 status = domain->methods->enum_local_groups(domain, mem_ctx, &num_entries, &sam_grp_entries);
568 if ( !NT_STATUS_IS_OK(status) ) {
569 DEBUG(3,("get_sam_group_entries: Failed to enumerate domain local groups!\n"));
573 DEBUG(4,("get_sam_group_entries: Returned %d local groups\n", num_entries));
575 /* Copy entries into return buffer */
578 if ( !(tmp_name_list = Realloc( name_list, sizeof(struct acct_info) * (ent->num_sam_entries+num_entries))) )
580 DEBUG(0,("get_sam_group_entries: Failed to realloc more memory for %d local groups!\n",
583 SAFE_FREE( name_list );
587 name_list = tmp_name_list;
589 memcpy( &name_list[ent->num_sam_entries], sam_grp_entries,
590 num_entries * sizeof(struct acct_info) );
593 ent->num_sam_entries += num_entries;
597 /* Fill in remaining fields */
599 ent->sam_entries = name_list;
600 ent->sam_entry_index = 0;
602 result = (ent->num_sam_entries > 0);
605 talloc_destroy(mem_ctx);
610 /* Fetch next group entry from ntdom database */
612 #define MAX_GETGRENT_GROUPS 500
614 enum winbindd_result winbindd_getgrent(struct winbindd_cli_state *state)
616 struct getent_state *ent;
617 struct winbindd_gr *group_list = NULL;
618 int num_groups, group_list_ndx = 0, i, gr_mem_list_len = 0;
619 char *new_extra_data, *gr_mem_list = NULL;
621 DEBUG(3, ("[%5lu]: getgrent\n", (unsigned long)state->pid));
623 /* Check user has enabled this */
625 if (!lp_winbind_enum_groups())
626 return WINBINDD_ERROR;
628 num_groups = MIN(MAX_GETGRENT_GROUPS, state->request.data.num_entries);
630 if ((state->response.extra_data =
631 malloc(num_groups * sizeof(struct winbindd_gr))) == NULL)
632 return WINBINDD_ERROR;
634 state->response.data.num_entries = 0;
636 group_list = (struct winbindd_gr *)state->response.extra_data;
638 if (!state->getgrent_initialized)
639 winbindd_setgrent(state);
641 if (!(ent = state->getgrent_state))
642 return WINBINDD_ERROR;
644 /* Start sending back groups */
646 for (i = 0; i < num_groups; i++) {
647 struct acct_info *name_list = NULL;
648 fstring domain_group_name;
652 char *gr_mem, *new_gr_mem_list;
654 struct winbindd_domain *domain;
656 /* Do we need to fetch another chunk of groups? */
660 DEBUG(10, ("entry_index = %d, num_entries = %d\n",
661 ent->sam_entry_index, ent->num_sam_entries));
663 if (ent->num_sam_entries == ent->sam_entry_index) {
665 while(ent && !get_sam_group_entries(ent)) {
666 struct getent_state *next_ent;
668 DEBUG(10, ("freeing state info for domain %s\n", ent->domain_name));
670 /* Free state information for this domain */
672 SAFE_FREE(ent->sam_entries);
674 next_ent = ent->next;
675 DLIST_REMOVE(state->getgrent_state, ent);
681 /* No more domains */
687 name_list = ent->sam_entries;
690 find_domain_from_name(ent->domain_name))) {
691 DEBUG(3, ("No such domain %s in winbindd_getgrent\n", ent->domain_name));
696 /* Lookup group info */
698 sid_copy(&group_sid, &domain->sid);
699 sid_append_rid(&group_sid, name_list[ent->sam_entry_index].rid);
701 if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &group_gid, 0))) {
703 DEBUG(1, ("could not look up gid for group %s\n",
704 name_list[ent->sam_entry_index].acct_name));
706 ent->sam_entry_index++;
710 DEBUG(10, ("got gid %lu for group %lu\n", (unsigned long)group_gid,
711 (unsigned long)name_list[ent->sam_entry_index].rid));
713 /* Fill in group entry */
715 fill_domain_username(domain_group_name, ent->domain_name,
716 name_list[ent->sam_entry_index].acct_name);
718 result = fill_grent(&group_list[group_list_ndx],
720 name_list[ent->sam_entry_index].acct_name,
723 /* Fill in group membership entry */
727 group_list[group_list_ndx].num_gr_mem = 0;
731 /* Get group membership */
732 if (state->request.cmd == WINBINDD_GETGRLST) {
735 sid_copy(&member_sid, &domain->sid);
736 sid_append_rid(&member_sid, name_list[ent->sam_entry_index].rid);
737 result = fill_grent_mem(
741 &group_list[group_list_ndx].num_gr_mem,
742 &gr_mem, &gr_mem_len);
747 /* Append to group membership list */
748 new_gr_mem_list = Realloc(
750 gr_mem_list_len + gr_mem_len);
752 if (!new_gr_mem_list && (group_list[group_list_ndx].num_gr_mem != 0)) {
753 DEBUG(0, ("out of memory\n"));
754 SAFE_FREE(gr_mem_list);
759 DEBUG(10, ("list_len = %d, mem_len = %d\n",
760 gr_mem_list_len, gr_mem_len));
762 gr_mem_list = new_gr_mem_list;
764 memcpy(&gr_mem_list[gr_mem_list_len], gr_mem,
769 group_list[group_list_ndx].gr_mem_ofs =
772 gr_mem_list_len += gr_mem_len;
775 ent->sam_entry_index++;
777 /* Add group to return list */
781 DEBUG(10, ("adding group num_entries = %d\n",
782 state->response.data.num_entries));
785 state->response.data.num_entries++;
787 state->response.length +=
788 sizeof(struct winbindd_gr);
791 DEBUG(0, ("could not lookup domain group %s\n",
796 /* Copy the list of group memberships to the end of the extra data */
798 if (group_list_ndx == 0)
801 new_extra_data = Realloc(
802 state->response.extra_data,
803 group_list_ndx * sizeof(struct winbindd_gr) + gr_mem_list_len);
805 if (!new_extra_data) {
806 DEBUG(0, ("out of memory\n"));
808 SAFE_FREE(state->response.extra_data);
809 SAFE_FREE(gr_mem_list);
811 return WINBINDD_ERROR;
814 state->response.extra_data = new_extra_data;
816 memcpy(&((char *)state->response.extra_data)
817 [group_list_ndx * sizeof(struct winbindd_gr)],
818 gr_mem_list, gr_mem_list_len);
820 SAFE_FREE(gr_mem_list);
822 state->response.length += gr_mem_list_len;
824 DEBUG(10, ("returning %d groups, length = %d\n",
825 group_list_ndx, gr_mem_list_len));
831 return (group_list_ndx > 0) ? WINBINDD_OK : WINBINDD_ERROR;
834 /* List domain groups without mapping to unix ids */
836 enum winbindd_result winbindd_list_groups(struct winbindd_cli_state *state)
838 uint32 total_entries = 0;
839 struct winbindd_domain *domain;
840 const char *which_domain;
841 char *extra_data = NULL;
843 unsigned int extra_data_len = 0, i;
845 DEBUG(3, ("[%5lu]: list groups\n", (unsigned long)state->pid));
847 /* Ensure null termination */
848 state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
849 which_domain = state->request.domain_name;
851 /* Enumerate over trusted domains */
853 for (domain = domain_list(); domain; domain = domain->next) {
854 struct getent_state groups;
856 /* if we have a domain name restricting the request and this
857 one in the list doesn't match, then just bypass the remainder
860 if ( *which_domain && !strequal(which_domain, domain->name) )
865 /* Get list of sam groups */
867 fstrcpy(groups.domain_name, domain->name);
869 get_sam_group_entries(&groups);
871 if (groups.num_sam_entries == 0) {
872 /* this domain is empty or in an error state */
876 /* keep track the of the total number of groups seen so
877 far over all domains */
878 total_entries += groups.num_sam_entries;
880 /* Allocate some memory for extra data. Note that we limit
881 account names to sizeof(fstring) = 128 characters. */
882 ted = Realloc(extra_data, sizeof(fstring) * total_entries);
885 DEBUG(0,("failed to enlarge buffer!\n"));
886 SAFE_FREE(extra_data);
887 return WINBINDD_ERROR;
891 /* Pack group list into extra data fields */
892 for (i = 0; i < groups.num_sam_entries; i++) {
893 char *group_name = ((struct acct_info *)
894 groups.sam_entries)[i].acct_name;
897 fill_domain_username(name, domain->name, group_name);
898 /* Append to extra data */
899 memcpy(&extra_data[extra_data_len], name,
901 extra_data_len += strlen(name);
902 extra_data[extra_data_len++] = ',';
905 SAFE_FREE(groups.sam_entries);
908 /* Assign extra_data fields in response structure */
910 extra_data[extra_data_len - 1] = '\0';
911 state->response.extra_data = extra_data;
912 state->response.length += extra_data_len;
915 /* No domains may have responded but that's still OK so don't
921 static void add_gid_to_array_unique(gid_t gid, gid_t **gids, int *num)
925 if ((*num) >= groups_max())
928 for (i=0; i<*num; i++) {
929 if ((*gids)[i] == gid)
933 *gids = Realloc(*gids, (*num+1) * sizeof(gid_t));
942 static void add_gids_from_sid(DOM_SID *sid, gid_t **gids, int *num)
948 DEBUG(10, ("Adding gids from SID: %s\n", sid_string_static(sid)));
950 if (NT_STATUS_IS_OK(idmap_sid_to_gid(sid, &gid, 0)))
951 add_gid_to_array_unique(gid, gids, num);
953 /* Don't expand aliases if not explicitly activated -- for now
956 if (!lp_winbind_nested_groups())
959 /* Add nested group memberships */
961 if (!pdb_enum_alias_memberships(sid, &aliases, &num_aliases))
964 for (j=0; j<num_aliases; j++) {
966 if (!NT_STATUS_IS_OK(sid_to_gid(&aliases[j], &gid)))
969 add_gid_to_array_unique(gid, gids, num);
974 /* Get user supplementary groups. This is much quicker than trying to
975 invert the groups database. We merge the groups from the gids and
976 other_sids info3 fields as trusted domain, universal group
977 memberships, and nested groups (win2k native mode only) are not
978 returned by the getgroups RPC call but are present in the info3. */
980 enum winbindd_result winbindd_getgroups(struct winbindd_cli_state *state)
982 fstring name_domain, name_user;
983 DOM_SID user_sid, group_sid;
984 enum SID_NAME_USE name_type;
985 uint32 num_groups = 0;
988 DOM_SID **user_grpsids;
989 struct winbindd_domain *domain;
990 enum winbindd_result result = WINBINDD_ERROR;
991 gid_t *gid_list = NULL;
994 NET_USER_INFO_3 *info3 = NULL;
996 /* Ensure null termination */
997 state->request.data.username[sizeof(state->request.data.username)-1]='\0';
999 DEBUG(3, ("[%5lu]: getgroups %s\n", (unsigned long)state->pid,
1000 state->request.data.username));
1002 if (!(mem_ctx = talloc_init("winbindd_getgroups(%s)",
1003 state->request.data.username)))
1004 return WINBINDD_ERROR;
1006 /* Parse domain and username */
1008 parse_domain_user(state->request.data.username,
1009 name_domain, name_user);
1011 /* Get info for the domain */
1013 if ((domain = find_domain_from_name(name_domain)) == NULL) {
1014 DEBUG(7, ("could not find domain entry for domain %s\n",
1019 if ( domain->primary && lp_winbind_trusted_domains_only()) {
1020 DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getgroups() for %s\\%s.\n",
1021 name_domain, name_user));
1022 return WINBINDD_ERROR;
1025 /* Get rid and name type from name. The following costs 1 packet */
1027 if (!winbindd_lookup_sid_by_name(domain, domain->name, name_user, &user_sid,
1029 DEBUG(1, ("user '%s' does not exist\n", name_user));
1033 if (name_type != SID_NAME_USER && name_type != SID_NAME_COMPUTER) {
1034 DEBUG(1, ("name '%s' is not a user name: %d\n",
1035 name_user, name_type));
1039 add_gids_from_sid(&user_sid, &gid_list, &num_gids);
1041 /* Treat the info3 cache as authoritative as the
1042 lookup_usergroups() function may return cached data. */
1044 if ( !opt_nocache && (info3 = netsamlogon_cache_get(mem_ctx, &user_sid))) {
1046 DEBUG(10, ("winbindd_getgroups: info3 has %d groups, %d other sids\n",
1047 info3->num_groups2, info3->num_other_sids));
1049 num_groups = info3->num_other_sids + info3->num_groups2;
1051 /* Go through each other sid and convert it to a gid */
1053 for (i = 0; i < info3->num_other_sids; i++) {
1056 enum SID_NAME_USE sid_type;
1058 /* Is this sid known to us? It can either be
1059 a trusted domain sid or a foreign sid. */
1061 if (!winbindd_lookup_name_by_sid( &info3->other_sids[i].sid,
1062 dom_name, name, &sid_type))
1064 DEBUG(10, ("winbindd_getgroups: could not lookup name for %s\n",
1065 sid_string_static(&info3->other_sids[i].sid)));
1069 /* Check it is a domain group or an alias (domain local group)
1070 in a win2k native mode domain. */
1072 if ( !((sid_type==SID_NAME_DOM_GRP) ||
1073 ((sid_type==SID_NAME_ALIAS) && domain->primary)) )
1075 DEBUG(10, ("winbindd_getgroups: sid type %d "
1076 "for %s is not a domain group\n",
1079 &info3->other_sids[i].sid)));
1083 add_gids_from_sid(&info3->other_sids[i].sid,
1084 &gid_list, &num_gids);
1086 if (gid_list == NULL)
1090 for (i = 0; i < info3->num_groups2; i++) {
1092 /* create the group SID */
1094 sid_copy( &group_sid, &domain->sid );
1095 sid_append_rid( &group_sid, info3->gids[i].g_rid );
1097 add_gids_from_sid(&group_sid, &gid_list, &num_gids);
1099 if (gid_list == NULL)
1106 status = domain->methods->lookup_usergroups(domain, mem_ctx,
1107 &user_sid, &num_groups,
1109 if (!NT_STATUS_IS_OK(status))
1112 if (state->response.extra_data)
1115 for (i = 0; i < num_groups; i++) {
1116 add_gids_from_sid(user_grpsids[i],
1117 &gid_list, &num_gids);
1119 if (gid_list == NULL)
1124 remove_duplicate_gids( &num_gids, gid_list );
1126 /* Send data back to client */
1128 state->response.data.num_entries = num_gids;
1129 state->response.extra_data = gid_list;
1130 state->response.length += num_gids * sizeof(gid_t);
1132 result = WINBINDD_OK;
1136 talloc_destroy(mem_ctx);
1142 /* Get user supplementary sids. This is equivalent to the
1143 winbindd_getgroups() function but it involves a SID->SIDs mapping
1144 rather than a NAME->SID->SIDS->GIDS mapping, which means we avoid
1145 idmap. This call is designed to be used with applications that need
1146 to do ACL evaluation themselves. Note that the cached info3 data is
1149 this function assumes that the SID that comes in is a user SID. If
1150 you pass in another type of SID then you may get unpredictable
1153 enum winbindd_result winbindd_getusersids(struct winbindd_cli_state *state)
1157 DOM_SID **user_grpsids;
1158 struct winbindd_domain *domain;
1159 enum winbindd_result result = WINBINDD_ERROR;
1161 TALLOC_CTX *mem_ctx;
1164 unsigned ofs, ret_size = 0;
1166 /* Ensure null termination */
1167 state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
1169 if (!string_to_sid(&user_sid, state->request.data.sid)) {
1170 DEBUG(1, ("Could not get convert sid %s from string\n", state->request.data.sid));
1171 return WINBINDD_ERROR;
1174 if (!(mem_ctx = talloc_init("winbindd_getusersids(%s)",
1175 state->request.data.username))) {
1176 return WINBINDD_ERROR;
1179 /* Get info for the domain */
1180 if ((domain = find_domain_from_sid(&user_sid)) == NULL) {
1181 DEBUG(0,("could not find domain entry for sid %s\n",
1182 sid_string_static(&user_sid)));
1186 status = domain->methods->lookup_usergroups(domain, mem_ctx,
1187 &user_sid, &num_groups,
1189 if (!NT_STATUS_IS_OK(status))
1192 if (num_groups == 0) {
1196 /* work out the response size */
1197 for (i = 0; i < num_groups; i++) {
1198 const char *s = sid_string_static(user_grpsids[i]);
1199 ret_size += strlen(s) + 1;
1202 /* build the reply */
1203 ret = malloc(ret_size);
1204 if (!ret) goto done;
1206 for (i = 0; i < num_groups; i++) {
1207 const char *s = sid_string_static(user_grpsids[i]);
1208 safe_strcpy(ret + ofs, s, ret_size - ofs - 1);
1209 ofs += strlen(ret+ofs) + 1;
1213 /* Send data back to client */
1214 state->response.data.num_entries = num_groups;
1215 state->response.extra_data = ret;
1216 state->response.length += ret_size;
1217 result = WINBINDD_OK;
1220 talloc_destroy(mem_ctx);