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 memset(state->response.extra_data, '\0',
635 num_groups * sizeof(struct winbindd_gr) );
637 state->response.data.num_entries = 0;
639 group_list = (struct winbindd_gr *)state->response.extra_data;
641 if (!state->getgrent_initialized)
642 winbindd_setgrent(state);
644 if (!(ent = state->getgrent_state))
645 return WINBINDD_ERROR;
647 /* Start sending back groups */
649 for (i = 0; i < num_groups; i++) {
650 struct acct_info *name_list = NULL;
651 fstring domain_group_name;
655 char *gr_mem, *new_gr_mem_list;
657 struct winbindd_domain *domain;
659 /* Do we need to fetch another chunk of groups? */
663 DEBUG(10, ("entry_index = %d, num_entries = %d\n",
664 ent->sam_entry_index, ent->num_sam_entries));
666 if (ent->num_sam_entries == ent->sam_entry_index) {
668 while(ent && !get_sam_group_entries(ent)) {
669 struct getent_state *next_ent;
671 DEBUG(10, ("freeing state info for domain %s\n", ent->domain_name));
673 /* Free state information for this domain */
675 SAFE_FREE(ent->sam_entries);
677 next_ent = ent->next;
678 DLIST_REMOVE(state->getgrent_state, ent);
684 /* No more domains */
690 name_list = ent->sam_entries;
693 find_domain_from_name(ent->domain_name))) {
694 DEBUG(3, ("No such domain %s in winbindd_getgrent\n", ent->domain_name));
699 /* Lookup group info */
701 sid_copy(&group_sid, &domain->sid);
702 sid_append_rid(&group_sid, name_list[ent->sam_entry_index].rid);
704 if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &group_gid, 0))) {
706 DEBUG(1, ("could not look up gid for group %s\n",
707 name_list[ent->sam_entry_index].acct_name));
709 ent->sam_entry_index++;
713 DEBUG(10, ("got gid %lu for group %lu\n", (unsigned long)group_gid,
714 (unsigned long)name_list[ent->sam_entry_index].rid));
716 /* Fill in group entry */
718 fill_domain_username(domain_group_name, ent->domain_name,
719 name_list[ent->sam_entry_index].acct_name);
721 result = fill_grent(&group_list[group_list_ndx],
723 name_list[ent->sam_entry_index].acct_name,
726 /* Fill in group membership entry */
730 group_list[group_list_ndx].num_gr_mem = 0;
734 /* Get group membership */
735 if (state->request.cmd == WINBINDD_GETGRLST) {
738 sid_copy(&member_sid, &domain->sid);
739 sid_append_rid(&member_sid, name_list[ent->sam_entry_index].rid);
740 result = fill_grent_mem(
744 &group_list[group_list_ndx].num_gr_mem,
745 &gr_mem, &gr_mem_len);
750 /* Append to group membership list */
751 new_gr_mem_list = Realloc(
753 gr_mem_list_len + gr_mem_len);
755 if (!new_gr_mem_list && (group_list[group_list_ndx].num_gr_mem != 0)) {
756 DEBUG(0, ("out of memory\n"));
757 SAFE_FREE(gr_mem_list);
762 DEBUG(10, ("list_len = %d, mem_len = %d\n",
763 gr_mem_list_len, gr_mem_len));
765 gr_mem_list = new_gr_mem_list;
767 memcpy(&gr_mem_list[gr_mem_list_len], gr_mem,
772 group_list[group_list_ndx].gr_mem_ofs =
775 gr_mem_list_len += gr_mem_len;
778 ent->sam_entry_index++;
780 /* Add group to return list */
784 DEBUG(10, ("adding group num_entries = %d\n",
785 state->response.data.num_entries));
788 state->response.data.num_entries++;
790 state->response.length +=
791 sizeof(struct winbindd_gr);
794 DEBUG(0, ("could not lookup domain group %s\n",
799 /* Copy the list of group memberships to the end of the extra data */
801 if (group_list_ndx == 0)
804 new_extra_data = Realloc(
805 state->response.extra_data,
806 group_list_ndx * sizeof(struct winbindd_gr) + gr_mem_list_len);
808 if (!new_extra_data) {
809 DEBUG(0, ("out of memory\n"));
811 SAFE_FREE(state->response.extra_data);
812 SAFE_FREE(gr_mem_list);
814 return WINBINDD_ERROR;
817 state->response.extra_data = new_extra_data;
819 memcpy(&((char *)state->response.extra_data)
820 [group_list_ndx * sizeof(struct winbindd_gr)],
821 gr_mem_list, gr_mem_list_len);
823 SAFE_FREE(gr_mem_list);
825 state->response.length += gr_mem_list_len;
827 DEBUG(10, ("returning %d groups, length = %d\n",
828 group_list_ndx, gr_mem_list_len));
834 return (group_list_ndx > 0) ? WINBINDD_OK : WINBINDD_ERROR;
837 /* List domain groups without mapping to unix ids */
839 enum winbindd_result winbindd_list_groups(struct winbindd_cli_state *state)
841 uint32 total_entries = 0;
842 struct winbindd_domain *domain;
843 const char *which_domain;
844 char *extra_data = NULL;
846 unsigned int extra_data_len = 0, i;
848 DEBUG(3, ("[%5lu]: list groups\n", (unsigned long)state->pid));
850 /* Ensure null termination */
851 state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
852 which_domain = state->request.domain_name;
854 /* Enumerate over trusted domains */
856 for (domain = domain_list(); domain; domain = domain->next) {
857 struct getent_state groups;
859 /* if we have a domain name restricting the request and this
860 one in the list doesn't match, then just bypass the remainder
863 if ( *which_domain && !strequal(which_domain, domain->name) )
868 /* Get list of sam groups */
870 fstrcpy(groups.domain_name, domain->name);
872 get_sam_group_entries(&groups);
874 if (groups.num_sam_entries == 0) {
875 /* this domain is empty or in an error state */
879 /* keep track the of the total number of groups seen so
880 far over all domains */
881 total_entries += groups.num_sam_entries;
883 /* Allocate some memory for extra data. Note that we limit
884 account names to sizeof(fstring) = 128 characters. */
885 ted = Realloc(extra_data, sizeof(fstring) * total_entries);
888 DEBUG(0,("failed to enlarge buffer!\n"));
889 SAFE_FREE(extra_data);
890 return WINBINDD_ERROR;
894 /* Pack group list into extra data fields */
895 for (i = 0; i < groups.num_sam_entries; i++) {
896 char *group_name = ((struct acct_info *)
897 groups.sam_entries)[i].acct_name;
900 fill_domain_username(name, domain->name, group_name);
901 /* Append to extra data */
902 memcpy(&extra_data[extra_data_len], name,
904 extra_data_len += strlen(name);
905 extra_data[extra_data_len++] = ',';
908 SAFE_FREE(groups.sam_entries);
911 /* Assign extra_data fields in response structure */
913 extra_data[extra_data_len - 1] = '\0';
914 state->response.extra_data = extra_data;
915 state->response.length += extra_data_len;
918 /* No domains may have responded but that's still OK so don't
924 static void add_gid_to_array_unique(gid_t gid, gid_t **gids, int *num)
928 if ((*num) >= groups_max())
931 for (i=0; i<*num; i++) {
932 if ((*gids)[i] == gid)
936 *gids = Realloc(*gids, (*num+1) * sizeof(gid_t));
945 static void add_gids_from_sid(DOM_SID *sid, gid_t **gids, int *num)
951 DEBUG(10, ("Adding gids from SID: %s\n", sid_string_static(sid)));
953 if (NT_STATUS_IS_OK(idmap_sid_to_gid(sid, &gid, 0)))
954 add_gid_to_array_unique(gid, gids, num);
956 /* Don't expand aliases if not explicitly activated -- for now
959 if (!lp_winbind_nested_groups())
962 /* Add nested group memberships */
964 if (!pdb_enum_alias_memberships(sid, &aliases, &num_aliases))
967 for (j=0; j<num_aliases; j++) {
969 if (!NT_STATUS_IS_OK(sid_to_gid(&aliases[j], &gid)))
972 add_gid_to_array_unique(gid, gids, num);
977 /* Get user supplementary groups. This is much quicker than trying to
978 invert the groups database. We merge the groups from the gids and
979 other_sids info3 fields as trusted domain, universal group
980 memberships, and nested groups (win2k native mode only) are not
981 returned by the getgroups RPC call but are present in the info3. */
983 enum winbindd_result winbindd_getgroups(struct winbindd_cli_state *state)
985 fstring name_domain, name_user;
986 DOM_SID user_sid, group_sid;
987 enum SID_NAME_USE name_type;
988 uint32 num_groups = 0;
991 DOM_SID **user_grpsids;
992 struct winbindd_domain *domain;
993 enum winbindd_result result = WINBINDD_ERROR;
994 gid_t *gid_list = NULL;
997 NET_USER_INFO_3 *info3 = NULL;
999 /* Ensure null termination */
1000 state->request.data.username[sizeof(state->request.data.username)-1]='\0';
1002 DEBUG(3, ("[%5lu]: getgroups %s\n", (unsigned long)state->pid,
1003 state->request.data.username));
1005 if (!(mem_ctx = talloc_init("winbindd_getgroups(%s)",
1006 state->request.data.username)))
1007 return WINBINDD_ERROR;
1009 /* Parse domain and username */
1011 parse_domain_user(state->request.data.username,
1012 name_domain, name_user);
1014 /* Get info for the domain */
1016 if ((domain = find_domain_from_name(name_domain)) == NULL) {
1017 DEBUG(7, ("could not find domain entry for domain %s\n",
1022 if ( domain->primary && lp_winbind_trusted_domains_only()) {
1023 DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getgroups() for %s\\%s.\n",
1024 name_domain, name_user));
1025 return WINBINDD_ERROR;
1028 /* Get rid and name type from name. The following costs 1 packet */
1030 if (!winbindd_lookup_sid_by_name(domain, domain->name, name_user, &user_sid,
1032 DEBUG(1, ("user '%s' does not exist\n", name_user));
1036 if (name_type != SID_NAME_USER && name_type != SID_NAME_COMPUTER) {
1037 DEBUG(1, ("name '%s' is not a user name: %d\n",
1038 name_user, name_type));
1042 add_gids_from_sid(&user_sid, &gid_list, &num_gids);
1044 /* Treat the info3 cache as authoritative as the
1045 lookup_usergroups() function may return cached data. */
1047 if ( !opt_nocache && (info3 = netsamlogon_cache_get(mem_ctx, &user_sid))) {
1049 DEBUG(10, ("winbindd_getgroups: info3 has %d groups, %d other sids\n",
1050 info3->num_groups2, info3->num_other_sids));
1052 num_groups = info3->num_other_sids + info3->num_groups2;
1054 /* Go through each other sid and convert it to a gid */
1056 for (i = 0; i < info3->num_other_sids; i++) {
1059 enum SID_NAME_USE sid_type;
1061 /* Is this sid known to us? It can either be
1062 a trusted domain sid or a foreign sid. */
1064 if (!winbindd_lookup_name_by_sid( &info3->other_sids[i].sid,
1065 dom_name, name, &sid_type))
1067 DEBUG(10, ("winbindd_getgroups: could not lookup name for %s\n",
1068 sid_string_static(&info3->other_sids[i].sid)));
1072 /* Check it is a domain group or an alias (domain local group)
1073 in a win2k native mode domain. */
1075 if ( !((sid_type==SID_NAME_DOM_GRP) ||
1076 ((sid_type==SID_NAME_ALIAS) && domain->primary)) )
1078 DEBUG(10, ("winbindd_getgroups: sid type %d "
1079 "for %s is not a domain group\n",
1082 &info3->other_sids[i].sid)));
1086 add_gids_from_sid(&info3->other_sids[i].sid,
1087 &gid_list, &num_gids);
1089 if (gid_list == NULL)
1093 for (i = 0; i < info3->num_groups2; i++) {
1095 /* create the group SID */
1097 sid_copy( &group_sid, &domain->sid );
1098 sid_append_rid( &group_sid, info3->gids[i].g_rid );
1100 add_gids_from_sid(&group_sid, &gid_list, &num_gids);
1102 if (gid_list == NULL)
1109 status = domain->methods->lookup_usergroups(domain, mem_ctx,
1110 &user_sid, &num_groups,
1112 if (!NT_STATUS_IS_OK(status))
1115 if (state->response.extra_data)
1118 for (i = 0; i < num_groups; i++) {
1119 add_gids_from_sid(user_grpsids[i],
1120 &gid_list, &num_gids);
1122 if (gid_list == NULL)
1127 remove_duplicate_gids( &num_gids, gid_list );
1129 /* Send data back to client */
1131 state->response.data.num_entries = num_gids;
1132 state->response.extra_data = gid_list;
1133 state->response.length += num_gids * sizeof(gid_t);
1135 result = WINBINDD_OK;
1139 talloc_destroy(mem_ctx);
1145 /* Get user supplementary sids. This is equivalent to the
1146 winbindd_getgroups() function but it involves a SID->SIDs mapping
1147 rather than a NAME->SID->SIDS->GIDS mapping, which means we avoid
1148 idmap. This call is designed to be used with applications that need
1149 to do ACL evaluation themselves. Note that the cached info3 data is
1152 this function assumes that the SID that comes in is a user SID. If
1153 you pass in another type of SID then you may get unpredictable
1156 enum winbindd_result winbindd_getusersids(struct winbindd_cli_state *state)
1160 DOM_SID **user_grpsids;
1161 struct winbindd_domain *domain;
1162 enum winbindd_result result = WINBINDD_ERROR;
1164 TALLOC_CTX *mem_ctx;
1167 unsigned ofs, ret_size = 0;
1169 /* Ensure null termination */
1170 state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
1172 if (!string_to_sid(&user_sid, state->request.data.sid)) {
1173 DEBUG(1, ("Could not get convert sid %s from string\n", state->request.data.sid));
1174 return WINBINDD_ERROR;
1177 if (!(mem_ctx = talloc_init("winbindd_getusersids(%s)",
1178 state->request.data.username))) {
1179 return WINBINDD_ERROR;
1182 /* Get info for the domain */
1183 if ((domain = find_domain_from_sid(&user_sid)) == NULL) {
1184 DEBUG(0,("could not find domain entry for sid %s\n",
1185 sid_string_static(&user_sid)));
1189 status = domain->methods->lookup_usergroups(domain, mem_ctx,
1190 &user_sid, &num_groups,
1192 if (!NT_STATUS_IS_OK(status))
1195 if (num_groups == 0) {
1199 /* work out the response size */
1200 for (i = 0; i < num_groups; i++) {
1201 const char *s = sid_string_static(user_grpsids[i]);
1202 ret_size += strlen(s) + 1;
1205 /* build the reply */
1206 ret = malloc(ret_size);
1207 if (!ret) goto done;
1209 for (i = 0; i < num_groups; i++) {
1210 const char *s = sid_string_static(user_grpsids[i]);
1211 safe_strcpy(ret + ofs, s, ret_size - ofs - 1);
1212 ofs += strlen(ret+ofs) + 1;
1216 /* Send data back to client */
1217 state->response.data.num_entries = num_groups;
1218 state->response.extra_data = ret;
1219 state->response.length += ret_size;
1220 result = WINBINDD_OK;
1223 talloc_destroy(mem_ctx);