Janitorial duties to make autogen.sh portable.
[Samba/gebeck_regimport.git] / source3 / groupdb / mapping.c
blob61c0dfb4b8e69ce6e247405af17368777e213c5b
1 /*
2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-2000,
5 * Copyright (C) Jean François Micouleau 1998-2001.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "includes.h"
24 static TDB_CONTEXT *tdb; /* used for driver files */
26 #define DATABASE_VERSION_V1 1 /* native byte format. */
27 #define DATABASE_VERSION_V2 2 /* le format. */
29 #define GROUP_PREFIX "UNIXGROUP/"
31 PRIVS privs[] = {
32 {SE_PRIV_NONE, "no_privs", "No privilege" }, /* this one MUST be first */
33 {SE_PRIV_ADD_MACHINES, "SeMachineAccountPrivilege", "Add workstations to the domain" },
34 {SE_PRIV_SEC_PRIV, "SeSecurityPrivilege", "Manage the audit logs" },
35 {SE_PRIV_TAKE_OWNER, "SeTakeOwnershipPrivilege", "Take ownership of file" },
36 {SE_PRIV_ADD_USERS, "SaAddUsers", "Add users to the domain - Samba" },
37 {SE_PRIV_PRINT_OPERATOR, "SaPrintOp", "Add or remove printers - Samba" },
38 {SE_PRIV_ALL, "SaAllPrivs", "all privileges" }
41 PRIVS privs[] = {
42 { 2, "SeCreateTokenPrivilege" },
43 { 3, "SeAssignPrimaryTokenPrivilege" },
44 { 4, "SeLockMemoryPrivilege" },
45 { 5, "SeIncreaseQuotaPrivilege" },
46 { 6, "SeMachineAccountPrivilege" },
47 { 7, "SeTcbPrivilege" },
48 { 8, "SeSecurityPrivilege" },
49 { 9, "SeTakeOwnershipPrivilege" },
50 { 10, "SeLoadDriverPrivilege" },
51 { 11, "SeSystemProfilePrivilege" },
52 { 12, "SeSystemtimePrivilege" },
53 { 13, "SeProfileSingleProcessPrivilege" },
54 { 14, "SeIncreaseBasePriorityPrivilege" },
55 { 15, "SeCreatePagefilePrivilege" },
56 { 16, "SeCreatePermanentPrivilege" },
57 { 17, "SeBackupPrivilege" },
58 { 18, "SeRestorePrivilege" },
59 { 19, "SeShutdownPrivilege" },
60 { 20, "SeDebugPrivilege" },
61 { 21, "SeAuditPrivilege" },
62 { 22, "SeSystemEnvironmentPrivilege" },
63 { 23, "SeChangeNotifyPrivilege" },
64 { 24, "SeRemoteShutdownPrivilege" },
65 { 25, "SeUndockPrivilege" },
66 { 26, "SeSyncAgentPrivilege" },
67 { 27, "SeEnableDelegationPrivilege" },
72 * Those are not really privileges like the other ones.
73 * They are handled in a special case and called
74 * system privileges.
76 * SeNetworkLogonRight
77 * SeUnsolicitedInputPrivilege
78 * SeBatchLogonRight
79 * SeServiceLogonRight
80 * SeInteractiveLogonRight
81 * SeDenyInteractiveLogonRight
82 * SeDenyNetworkLogonRight
83 * SeDenyBatchLogonRight
84 * SeDenyBatchLogonRight
87 #if 0
88 /****************************************************************************
89 check if the user has the required privilege.
90 ****************************************************************************/
91 static BOOL se_priv_access_check(NT_USER_TOKEN *token, uint32 privilege)
93 /* no token, no privilege */
94 if (token==NULL)
95 return False;
97 if ((token->privilege & privilege)==privilege)
98 return True;
100 return False;
102 #endif
104 /****************************************************************************
105 dump the mapping group mapping to a text file
106 ****************************************************************************/
107 char *decode_sid_name_use(fstring group, enum SID_NAME_USE name_use)
109 static fstring group_type;
111 switch(name_use) {
112 case SID_NAME_USER:
113 fstrcpy(group_type,"User");
114 break;
115 case SID_NAME_DOM_GRP:
116 fstrcpy(group_type,"Domain group");
117 break;
118 case SID_NAME_DOMAIN:
119 fstrcpy(group_type,"Domain");
120 break;
121 case SID_NAME_ALIAS:
122 fstrcpy(group_type,"Local group");
123 break;
124 case SID_NAME_WKN_GRP:
125 fstrcpy(group_type,"Builtin group");
126 break;
127 case SID_NAME_DELETED:
128 fstrcpy(group_type,"Deleted");
129 break;
130 case SID_NAME_INVALID:
131 fstrcpy(group_type,"Invalid");
132 break;
133 case SID_NAME_UNKNOWN:
134 default:
135 fstrcpy(group_type,"Unknown type");
136 break;
139 fstrcpy(group, group_type);
140 return group_type;
143 /****************************************************************************
144 initialise first time the mapping list - called from init_group_mapping()
145 ****************************************************************************/
146 static BOOL default_group_mapping(void)
148 DOM_SID sid_admins;
149 DOM_SID sid_users;
150 DOM_SID sid_guests;
151 fstring str_admins;
152 fstring str_users;
153 fstring str_guests;
154 LUID_ATTR set;
156 PRIVILEGE_SET privilege_none;
157 PRIVILEGE_SET privilege_all;
158 PRIVILEGE_SET privilege_print_op;
160 init_privilege(&privilege_none);
161 init_privilege(&privilege_all);
162 init_privilege(&privilege_print_op);
164 set.attr=0;
165 set.luid.high=0;
166 set.luid.low=SE_PRIV_PRINT_OPERATOR;
167 add_privilege(&privilege_print_op, set);
169 add_all_privilege(&privilege_all);
171 /* Add the Wellknown groups */
173 add_initial_entry(-1, "S-1-5-32-544", SID_NAME_ALIAS, "Administrators", "", privilege_all, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
174 add_initial_entry(-1, "S-1-5-32-545", SID_NAME_ALIAS, "Users", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
175 add_initial_entry(-1, "S-1-5-32-546", SID_NAME_ALIAS, "Guests", "", privilege_none, PR_ACCESS_FROM_NETWORK);
176 add_initial_entry(-1, "S-1-5-32-547", SID_NAME_ALIAS, "Power Users", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
178 add_initial_entry(-1, "S-1-5-32-548", SID_NAME_ALIAS, "Account Operators", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
179 add_initial_entry(-1, "S-1-5-32-549", SID_NAME_ALIAS, "System Operators", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
180 add_initial_entry(-1, "S-1-5-32-550", SID_NAME_ALIAS, "Print Operators", "", privilege_print_op, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
181 add_initial_entry(-1, "S-1-5-32-551", SID_NAME_ALIAS, "Backup Operators", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
183 add_initial_entry(-1, "S-1-5-32-552", SID_NAME_ALIAS, "Replicators", "", privilege_none, PR_ACCESS_FROM_NETWORK);
185 /* Add the defaults domain groups */
187 sid_copy(&sid_admins, get_global_sam_sid());
188 sid_append_rid(&sid_admins, DOMAIN_GROUP_RID_ADMINS);
189 sid_to_string(str_admins, &sid_admins);
190 add_initial_entry(-1, str_admins, SID_NAME_DOM_GRP, "Domain Admins", "", privilege_all, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
192 sid_copy(&sid_users, get_global_sam_sid());
193 sid_append_rid(&sid_users, DOMAIN_GROUP_RID_USERS);
194 sid_to_string(str_users, &sid_users);
195 add_initial_entry(-1, str_users, SID_NAME_DOM_GRP, "Domain Users", "", privilege_none, PR_ACCESS_FROM_NETWORK|PR_LOG_ON_LOCALLY);
197 sid_copy(&sid_guests, get_global_sam_sid());
198 sid_append_rid(&sid_guests, DOMAIN_GROUP_RID_GUESTS);
199 sid_to_string(str_guests, &sid_guests);
200 add_initial_entry(-1, str_guests, SID_NAME_DOM_GRP, "Domain Guests", "", privilege_none, PR_ACCESS_FROM_NETWORK);
202 return True;
205 /****************************************************************************
206 Open the group mapping tdb.
207 ****************************************************************************/
209 static BOOL init_group_mapping(void)
211 static pid_t local_pid;
212 const char *vstring = "INFO/version";
213 int32 vers_id;
215 if (tdb && local_pid == sys_getpid())
216 return True;
217 tdb = tdb_open_log(lock_path("group_mapping.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
218 if (!tdb) {
219 DEBUG(0,("Failed to open group mapping database\n"));
220 return False;
223 local_pid = sys_getpid();
225 /* handle a Samba upgrade */
226 tdb_lock_bystring(tdb, vstring, 0);
228 /* Cope with byte-reversed older versions of the db. */
229 vers_id = tdb_fetch_int32(tdb, vstring);
230 if ((vers_id == DATABASE_VERSION_V1) || (IREV(vers_id) == DATABASE_VERSION_V1)) {
231 /* Written on a bigendian machine with old fetch_int code. Save as le. */
232 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
233 vers_id = DATABASE_VERSION_V2;
236 if (vers_id != DATABASE_VERSION_V2) {
237 tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
238 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
241 tdb_unlock_bystring(tdb, vstring);
243 /* write a list of default groups */
244 if(!default_group_mapping())
245 return False;
247 return True;
250 /****************************************************************************
251 ****************************************************************************/
252 static BOOL add_mapping_entry(GROUP_MAP *map, int flag)
254 TDB_DATA kbuf, dbuf;
255 pstring key, buf;
256 fstring string_sid="";
257 int len;
258 int i;
259 PRIVILEGE_SET *set;
261 if(!init_group_mapping()) {
262 DEBUG(0,("failed to initialize group mapping"));
263 return(False);
266 sid_to_string(string_sid, &map->sid);
268 len = tdb_pack(buf, sizeof(buf), "ddffd",
269 map->gid, map->sid_name_use, map->nt_name, map->comment, map->systemaccount);
271 /* write the privilege list in the TDB database */
273 set=&map->priv_set;
274 len += tdb_pack(buf+len, sizeof(buf)-len, "d", set->count);
275 for (i=0; i<set->count; i++)
276 len += tdb_pack(buf+len, sizeof(buf)-len, "ddd",
277 set->set[i].luid.low, set->set[i].luid.high, set->set[i].attr);
279 if (len > sizeof(buf))
280 return False;
282 slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
284 kbuf.dsize = strlen(key)+1;
285 kbuf.dptr = key;
286 dbuf.dsize = len;
287 dbuf.dptr = buf;
288 if (tdb_store(tdb, kbuf, dbuf, flag) != 0) return False;
290 return True;
293 /****************************************************************************
294 initialise first time the mapping list
295 ****************************************************************************/
296 BOOL add_initial_entry(gid_t gid, const char *sid, enum SID_NAME_USE sid_name_use,
297 const char *nt_name, const char *comment, PRIVILEGE_SET priv_set, uint32 systemaccount)
299 GROUP_MAP map;
301 if(!init_group_mapping()) {
302 DEBUG(0,("failed to initialize group mapping"));
303 return(False);
306 map.gid=gid;
307 if (!string_to_sid(&map.sid, sid)) {
308 DEBUG(0, ("string_to_sid failed: %s", sid));
309 return False;
312 map.sid_name_use=sid_name_use;
313 fstrcpy(map.nt_name, nt_name);
314 fstrcpy(map.comment, comment);
315 map.systemaccount=systemaccount;
317 map.priv_set.count=priv_set.count;
318 map.priv_set.set=priv_set.set;
320 pdb_add_group_mapping_entry(&map);
322 return True;
325 /****************************************************************************
326 initialise a privilege list
327 ****************************************************************************/
328 void init_privilege(PRIVILEGE_SET *priv_set)
330 priv_set->count=0;
331 priv_set->control=0;
332 priv_set->set=NULL;
335 /****************************************************************************
336 free a privilege list
337 ****************************************************************************/
338 BOOL free_privilege(PRIVILEGE_SET *priv_set)
340 if (priv_set->count==0) {
341 DEBUG(100,("free_privilege: count=0, nothing to clear ?\n"));
342 return False;
345 if (priv_set->set==NULL) {
346 DEBUG(0,("free_privilege: list ptr is NULL, very strange !\n"));
347 return False;
350 safe_free(priv_set->set);
351 priv_set->count=0;
352 priv_set->control=0;
353 priv_set->set=NULL;
355 return True;
358 /****************************************************************************
359 add a privilege to a privilege array
360 ****************************************************************************/
361 BOOL add_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
363 LUID_ATTR *new_set;
365 /* check if the privilege is not already in the list */
366 if (check_priv_in_privilege(priv_set, set))
367 return False;
369 /* we can allocate memory to add the new privilege */
371 new_set=(LUID_ATTR *)Realloc(priv_set->set, (priv_set->count+1)*(sizeof(LUID_ATTR)));
372 if (new_set==NULL) {
373 DEBUG(0,("add_privilege: could not Realloc memory to add a new privilege\n"));
374 return False;
377 new_set[priv_set->count].luid.high=set.luid.high;
378 new_set[priv_set->count].luid.low=set.luid.low;
379 new_set[priv_set->count].attr=set.attr;
381 priv_set->count++;
382 priv_set->set=new_set;
384 return True;
387 /****************************************************************************
388 add all the privileges to a privilege array
389 ****************************************************************************/
390 BOOL add_all_privilege(PRIVILEGE_SET *priv_set)
392 LUID_ATTR set;
394 set.attr=0;
395 set.luid.high=0;
397 set.luid.low=SE_PRIV_ADD_USERS;
398 add_privilege(priv_set, set);
400 set.luid.low=SE_PRIV_ADD_MACHINES;
401 add_privilege(priv_set, set);
403 set.luid.low=SE_PRIV_PRINT_OPERATOR;
404 add_privilege(priv_set, set);
406 return True;
409 /****************************************************************************
410 check if the privilege list is empty
411 ****************************************************************************/
412 BOOL check_empty_privilege(PRIVILEGE_SET *priv_set)
414 return (priv_set->count == 0);
417 /****************************************************************************
418 check if the privilege is in the privilege list
419 ****************************************************************************/
420 BOOL check_priv_in_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
422 int i;
424 /* if the list is empty, obviously we can't have it */
425 if (check_empty_privilege(priv_set))
426 return False;
428 for (i=0; i<priv_set->count; i++) {
429 LUID_ATTR *cur_set;
431 cur_set=&priv_set->set[i];
432 /* check only the low and high part. Checking the attr field has no meaning */
433 if( (cur_set->luid.low==set.luid.low) && (cur_set->luid.high==set.luid.high) )
434 return True;
437 return False;
440 /****************************************************************************
441 remove a privilege from a privilege array
442 ****************************************************************************/
443 BOOL remove_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
445 LUID_ATTR *new_set;
446 LUID_ATTR *old_set;
447 int i,j;
449 /* check if the privilege is in the list */
450 if (!check_priv_in_privilege(priv_set, set))
451 return False;
453 /* special case if it's the only privilege in the list */
454 if (priv_set->count==1) {
455 free_privilege(priv_set);
456 init_privilege(priv_set);
458 return True;
462 * the privilege is there, create a new list,
463 * and copy the other privileges
466 old_set=priv_set->set;
468 new_set=(LUID_ATTR *)malloc((priv_set->count-1)*(sizeof(LUID_ATTR)));
469 if (new_set==NULL) {
470 DEBUG(0,("remove_privilege: could not malloc memory for new privilege list\n"));
471 return False;
474 for (i=0, j=0; i<priv_set->count; i++) {
475 if ((old_set[i].luid.low==set.luid.low) &&
476 (old_set[i].luid.high==set.luid.high)) {
477 continue;
480 new_set[j].luid.low=old_set[i].luid.low;
481 new_set[j].luid.high=old_set[i].luid.high;
482 new_set[j].attr=old_set[i].attr;
484 j++;
487 if (j!=priv_set->count-1) {
488 DEBUG(0,("remove_privilege: mismatch ! difference is not -1\n"));
489 DEBUGADD(0,("old count:%d, new count:%d\n", priv_set->count, j));
490 safe_free(new_set);
491 return False;
494 /* ok everything is fine */
496 priv_set->count--;
497 priv_set->set=new_set;
499 safe_free(old_set);
501 return True;
504 /****************************************************************************
505 Return the sid and the type of the unix group.
506 ****************************************************************************/
508 static BOOL get_group_map_from_sid(DOM_SID sid, GROUP_MAP *map, BOOL with_priv)
510 TDB_DATA kbuf, dbuf;
511 pstring key;
512 fstring string_sid;
513 int ret;
514 int i;
515 PRIVILEGE_SET *set;
517 if(!init_group_mapping()) {
518 DEBUG(0,("failed to initialize group mapping"));
519 return(False);
522 /* the key is the SID, retrieving is direct */
524 sid_to_string(string_sid, &sid);
525 slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
527 kbuf.dptr = key;
528 kbuf.dsize = strlen(key)+1;
530 dbuf = tdb_fetch(tdb, kbuf);
531 if (!dbuf.dptr)
532 return False;
534 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddffd",
535 &map->gid, &map->sid_name_use, &map->nt_name, &map->comment, &map->systemaccount);
537 set=&map->priv_set;
538 init_privilege(set);
539 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "d", &set->count);
541 DEBUG(10,("get_group_map_from_sid: %d privileges\n", map->priv_set.count));
543 set->set = NULL;
544 if (set->count) {
545 set->set=(LUID_ATTR *)smb_xmalloc(set->count*sizeof(LUID_ATTR));
548 for (i=0; i<set->count; i++)
549 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "ddd",
550 &(set->set[i].luid.low), &(set->set[i].luid.high), &(set->set[i].attr));
552 SAFE_FREE(dbuf.dptr);
553 if (ret != dbuf.dsize) {
554 DEBUG(0,("get_group_map_from_sid: group mapping TDB corrupted ?\n"));
555 free_privilege(set);
556 return False;
559 /* we don't want the privileges */
560 if (with_priv==MAPPING_WITHOUT_PRIV)
561 free_privilege(set);
563 sid_copy(&map->sid, &sid);
565 return True;
568 /****************************************************************************
569 Return the sid and the type of the unix group.
570 ****************************************************************************/
572 static BOOL get_group_map_from_gid(gid_t gid, GROUP_MAP *map, BOOL with_priv)
574 TDB_DATA kbuf, dbuf, newkey;
575 fstring string_sid;
576 int ret;
577 int i;
578 PRIVILEGE_SET *set;
580 if(!init_group_mapping()) {
581 DEBUG(0,("failed to initialize group mapping"));
582 return(False);
585 /* we need to enumerate the TDB to find the GID */
587 for (kbuf = tdb_firstkey(tdb);
588 kbuf.dptr;
589 newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
591 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
593 dbuf = tdb_fetch(tdb, kbuf);
594 if (!dbuf.dptr)
595 continue;
597 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
599 string_to_sid(&map->sid, string_sid);
601 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddffd",
602 &map->gid, &map->sid_name_use, &map->nt_name, &map->comment, &map->systemaccount);
604 set=&map->priv_set;
605 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "d", &set->count);
606 set->set = NULL;
607 if (set->count) {
608 set->set=(LUID_ATTR *)smb_xmalloc(set->count*sizeof(LUID_ATTR));
611 for (i=0; i<set->count; i++)
612 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "ddd",
613 &(set->set[i].luid.low), &(set->set[i].luid.high), &(set->set[i].attr));
615 SAFE_FREE(dbuf.dptr);
616 if (ret != dbuf.dsize){
617 free_privilege(set);
618 continue;
621 if (gid==map->gid) {
622 if (!with_priv)
623 free_privilege(&map->priv_set);
624 return True;
627 free_privilege(set);
630 return False;
633 /****************************************************************************
634 Return the sid and the type of the unix group.
635 ****************************************************************************/
637 static BOOL get_group_map_from_ntname(char *name, GROUP_MAP *map, BOOL with_priv)
639 TDB_DATA kbuf, dbuf, newkey;
640 fstring string_sid;
641 int ret;
642 int i;
643 PRIVILEGE_SET *set;
645 if(!init_group_mapping()) {
646 DEBUG(0,("get_group_map_from_ntname:failed to initialize group mapping"));
647 return(False);
650 /* we need to enumerate the TDB to find the name */
652 for (kbuf = tdb_firstkey(tdb);
653 kbuf.dptr;
654 newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
656 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
658 dbuf = tdb_fetch(tdb, kbuf);
659 if (!dbuf.dptr)
660 continue;
662 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
664 string_to_sid(&map->sid, string_sid);
666 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddffd",
667 &map->gid, &map->sid_name_use, &map->nt_name, &map->comment, &map->systemaccount);
669 set=&map->priv_set;
670 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "d", &set->count);
672 set->set=(LUID_ATTR *)malloc(set->count*sizeof(LUID_ATTR));
673 if (set->set==NULL) {
674 DEBUG(0,("get_group_map_from_ntname: could not allocate memory for privileges\n"));
675 return False;
678 for (i=0; i<set->count; i++)
679 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "ddd",
680 &(set->set[i].luid.low), &(set->set[i].luid.high), &(set->set[i].attr));
682 SAFE_FREE(dbuf.dptr);
683 if (ret != dbuf.dsize) {
684 free_privilege(set);
685 continue;
688 if (StrCaseCmp(name, map->nt_name)==0) {
689 if (!with_priv)
690 free_privilege(&map->priv_set);
691 return True;
694 free_privilege(set);
697 return False;
700 /****************************************************************************
701 Remove a group mapping entry.
702 ****************************************************************************/
704 static BOOL group_map_remove(DOM_SID sid)
706 TDB_DATA kbuf, dbuf;
707 pstring key;
708 fstring string_sid;
710 if(!init_group_mapping()) {
711 DEBUG(0,("failed to initialize group mapping"));
712 return(False);
715 /* the key is the SID, retrieving is direct */
717 sid_to_string(string_sid, &sid);
718 slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
720 kbuf.dptr = key;
721 kbuf.dsize = strlen(key)+1;
723 dbuf = tdb_fetch(tdb, kbuf);
724 if (!dbuf.dptr)
725 return False;
727 SAFE_FREE(dbuf.dptr);
729 if(tdb_delete(tdb, kbuf) != TDB_SUCCESS)
730 return False;
732 return True;
735 /****************************************************************************
736 Enumerate the group mapping.
737 ****************************************************************************/
739 static BOOL enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
740 int *num_entries, BOOL unix_only, BOOL with_priv)
742 TDB_DATA kbuf, dbuf, newkey;
743 fstring string_sid;
744 fstring group_type;
745 GROUP_MAP map;
746 GROUP_MAP *mapt;
747 int ret;
748 int entries=0;
749 int i;
750 PRIVILEGE_SET *set;
752 if(!init_group_mapping()) {
753 DEBUG(0,("failed to initialize group mapping"));
754 return(False);
757 *num_entries=0;
758 *rmap=NULL;
760 for (kbuf = tdb_firstkey(tdb);
761 kbuf.dptr;
762 newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
764 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0)
765 continue;
767 dbuf = tdb_fetch(tdb, kbuf);
768 if (!dbuf.dptr)
769 continue;
771 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
773 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddffd",
774 &map.gid, &map.sid_name_use, &map.nt_name, &map.comment, &map.systemaccount);
776 set=&map.priv_set;
777 init_privilege(set);
779 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "d", &set->count);
781 if (set->count!=0) {
782 set->set=(LUID_ATTR *)malloc(set->count*sizeof(LUID_ATTR));
783 if (set->set==NULL) {
784 DEBUG(0,("enum_group_mapping: could not allocate memory for privileges\n"));
785 return False;
789 for (i=0; i<set->count; i++)
790 ret += tdb_unpack(dbuf.dptr+ret, dbuf.dsize-ret, "ddd",
791 &(set->set[i].luid.low), &(set->set[i].luid.high), &(set->set[i].attr));
793 SAFE_FREE(dbuf.dptr);
794 if (ret != dbuf.dsize) {
795 DEBUG(11,("enum_group_mapping: error in memory size\n"));
796 free_privilege(set);
797 continue;
800 /* list only the type or everything if UNKNOWN */
801 if (sid_name_use!=SID_NAME_UNKNOWN && sid_name_use!=map.sid_name_use) {
802 DEBUG(11,("enum_group_mapping: group %s is not of the requested type\n", map.nt_name));
803 free_privilege(set);
804 continue;
807 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
808 DEBUG(11,("enum_group_mapping: group %s is non mapped\n", map.nt_name));
809 free_privilege(set);
810 continue;
813 string_to_sid(&map.sid, string_sid);
815 decode_sid_name_use(group_type, map.sid_name_use);
816 DEBUG(11,("enum_group_mapping: returning group %s of type %s\n", map.nt_name ,group_type));
818 mapt=(GROUP_MAP *)Realloc((*rmap), (entries+1)*sizeof(GROUP_MAP));
819 if (!mapt) {
820 DEBUG(0,("enum_group_mapping: Unable to enlarge group map!\n"));
821 SAFE_FREE(*rmap);
822 free_privilege(set);
823 return False;
825 else
826 (*rmap) = mapt;
828 mapt[entries].gid = map.gid;
829 sid_copy( &mapt[entries].sid, &map.sid);
830 mapt[entries].sid_name_use = map.sid_name_use;
831 fstrcpy(mapt[entries].nt_name, map.nt_name);
832 fstrcpy(mapt[entries].comment, map.comment);
833 mapt[entries].systemaccount=map.systemaccount;
834 mapt[entries].priv_set.count=set->count;
835 mapt[entries].priv_set.control=set->control;
836 mapt[entries].priv_set.set=set->set;
837 if (!with_priv)
838 free_privilege(&(mapt[entries].priv_set));
840 entries++;
843 *num_entries=entries;
845 return True;
849 /****************************************************************************
850 convert a privilege string to a privilege array
851 ****************************************************************************/
852 void convert_priv_from_text(PRIVILEGE_SET *se_priv, char *privilege)
854 pstring tok;
855 const char *p = privilege;
856 int i;
857 LUID_ATTR set;
859 /* By default no privilege */
860 init_privilege(se_priv);
862 if (privilege==NULL)
863 return;
865 while(next_token(&p, tok, " ", sizeof(tok)) ) {
866 for (i=0; i<=PRIV_ALL_INDEX; i++) {
867 if (StrCaseCmp(privs[i].priv, tok)==0) {
868 set.attr=0;
869 set.luid.high=0;
870 set.luid.low=privs[i].se_priv;
871 add_privilege(se_priv, set);
877 /****************************************************************************
878 convert a privilege array to a privilege string
879 ****************************************************************************/
880 void convert_priv_to_text(PRIVILEGE_SET *se_priv, char *privilege)
882 int i,j;
884 if (privilege==NULL)
885 return;
887 ZERO_STRUCTP(privilege);
889 if (check_empty_privilege(se_priv)) {
890 fstrcat(privilege, "No privilege");
891 return;
894 for(i=0; i<se_priv->count; i++) {
895 j=1;
896 while (privs[j].se_priv!=se_priv->set[i].luid.low && j<=PRIV_ALL_INDEX) {
897 j++;
900 fstrcat(privilege, privs[j].priv);
901 fstrcat(privilege, " ");
908 * High level functions
909 * better to use them than the lower ones.
911 * we are checking if the group is in the mapping file
912 * and if the group is an existing unix group
916 /* get a domain group from it's SID */
918 BOOL get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map, BOOL with_priv)
920 struct group *grp;
922 if(!init_group_mapping()) {
923 DEBUG(0,("failed to initialize group mapping"));
924 return(False);
927 DEBUG(10, ("get_domain_group_from_sid\n"));
929 /* if the group is NOT in the database, it CAN NOT be a domain group */
930 if(!pdb_getgrsid(map, sid, with_priv))
931 return False;
933 DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
935 /* if it's not a domain group, continue */
936 if (map->sid_name_use!=SID_NAME_DOM_GRP) {
937 if (with_priv)
938 free_privilege(&map->priv_set);
939 return False;
942 DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
944 if (map->gid==-1) {
945 if (with_priv)
946 free_privilege(&map->priv_set);
947 return False;
950 DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%d\n",map->gid));
952 if ( (grp=getgrgid(map->gid)) == NULL) {
953 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
954 if (with_priv)
955 free_privilege(&map->priv_set);
956 return False;
959 DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
961 return True;
965 /* get a local (alias) group from it's SID */
967 BOOL get_local_group_from_sid(DOM_SID sid, GROUP_MAP *map, BOOL with_priv)
969 struct group *grp;
971 if(!init_group_mapping()) {
972 DEBUG(0,("failed to initialize group mapping"));
973 return(False);
976 /* The group is in the mapping table */
977 if(pdb_getgrsid(map, sid, with_priv)) {
978 if (map->sid_name_use!=SID_NAME_ALIAS) {
979 if (with_priv)
980 free_privilege(&map->priv_set);
981 return False;
984 if (map->gid==-1) {
985 if (with_priv)
986 free_privilege(&map->priv_set);
987 return False;
990 if ( (grp=getgrgid(map->gid)) == NULL) {
991 if (with_priv)
992 free_privilege(&map->priv_set);
993 return False;
995 } else {
996 /* the group isn't in the mapping table.
997 * make one based on the unix information */
998 uint32 alias_rid;
1000 sid_peek_rid(&sid, &alias_rid);
1001 map->gid=pdb_group_rid_to_gid(alias_rid);
1003 if ((grp=getgrgid(map->gid)) == NULL)
1004 return False;
1006 map->sid_name_use=SID_NAME_ALIAS;
1007 map->systemaccount=PR_ACCESS_FROM_NETWORK;
1009 fstrcpy(map->nt_name, grp->gr_name);
1010 fstrcpy(map->comment, "Local Unix Group");
1012 init_privilege(&map->priv_set);
1014 sid_copy(&map->sid, &sid);
1017 return True;
1020 /* get a builtin group from it's SID */
1022 BOOL get_builtin_group_from_sid(DOM_SID sid, GROUP_MAP *map, BOOL with_priv)
1024 struct group *grp;
1026 if(!init_group_mapping()) {
1027 DEBUG(0,("failed to initialize group mapping"));
1028 return(False);
1031 if(!pdb_getgrsid(map, sid, with_priv))
1032 return False;
1034 if (map->sid_name_use!=SID_NAME_WKN_GRP) {
1035 if (with_priv)
1036 free_privilege(&map->priv_set);
1037 return False;
1040 if (map->gid==-1) {
1041 if (with_priv)
1042 free_privilege(&map->priv_set);
1043 return False;
1046 if ( (grp=getgrgid(map->gid)) == NULL) {
1047 if (with_priv)
1048 free_privilege(&map->priv_set);
1049 return False;
1052 return True;
1057 /****************************************************************************
1058 Returns a GROUP_MAP struct based on the gid.
1059 ****************************************************************************/
1060 BOOL get_group_from_gid(gid_t gid, GROUP_MAP *map, BOOL with_priv)
1062 struct group *grp;
1064 if(!init_group_mapping()) {
1065 DEBUG(0,("failed to initialize group mapping"));
1066 return(False);
1069 if ( (grp=getgrgid(gid)) == NULL)
1070 return False;
1073 * make a group map from scratch if doesn't exist.
1075 if (!pdb_getgrgid(map, gid, with_priv)) {
1076 map->gid=gid;
1077 map->sid_name_use=SID_NAME_ALIAS;
1078 map->systemaccount=PR_ACCESS_FROM_NETWORK;
1079 init_privilege(&map->priv_set);
1081 /* interim solution until we have a last RID allocated */
1083 sid_copy(&map->sid, get_global_sam_sid());
1084 sid_append_rid(&map->sid, pdb_gid_to_group_rid(gid));
1086 fstrcpy(map->nt_name, grp->gr_name);
1087 fstrcpy(map->comment, "Local Unix Group");
1090 return True;
1096 /****************************************************************************
1097 Get the member users of a group and
1098 all the users who have that group as primary.
1100 give back an array of uid
1101 return the grand number of users
1104 TODO: sort the list and remove duplicate. JFM.
1106 ****************************************************************************/
1108 BOOL get_uid_list_of_group(gid_t gid, uid_t **uid, int *num_uids)
1110 struct group *grp;
1111 struct passwd *pwd;
1112 int i=0;
1113 char *gr;
1114 uid_t *u;
1116 if(!init_group_mapping()) {
1117 DEBUG(0,("failed to initialize group mapping"));
1118 return(False);
1121 *num_uids = 0;
1122 *uid=NULL;
1124 if ( (grp=getgrgid(gid)) == NULL)
1125 return False;
1127 gr = grp->gr_mem[0];
1128 DEBUG(10, ("getting members\n"));
1130 while (gr && (*gr != (char)'\0')) {
1131 u = Realloc((*uid), sizeof(uid_t)*(*num_uids+1));
1132 if (!u) {
1133 DEBUG(0,("get_uid_list_of_group: unable to enlarge uid list!\n"));
1134 return False;
1136 else (*uid) = u;
1138 if( (pwd=getpwnam_alloc(gr)) !=NULL) {
1139 (*uid)[*num_uids]=pwd->pw_uid;
1140 (*num_uids)++;
1142 passwd_free(&pwd);
1143 gr = grp->gr_mem[++i];
1145 DEBUG(10, ("got [%d] members\n", *num_uids));
1147 setpwent();
1148 while ((pwd=getpwent()) != NULL) {
1149 if (pwd->pw_gid==gid) {
1150 u = Realloc((*uid), sizeof(uid_t)*(*num_uids+1));
1151 if (!u) {
1152 DEBUG(0,("get_uid_list_of_group: unable to enlarge uid list!\n"));
1153 return False;
1155 else (*uid) = u;
1156 (*uid)[*num_uids]=pwd->pw_uid;
1158 (*num_uids)++;
1161 endpwent();
1162 DEBUG(10, ("got primary groups, members: [%d]\n", *num_uids));
1164 return True;
1167 /****************************************************************************
1168 Create a UNIX group on demand.
1169 ****************************************************************************/
1171 int smb_create_group(char *unix_group, gid_t *new_gid)
1173 pstring add_script;
1174 int ret;
1175 int fd = 0;
1177 pstrcpy(add_script, lp_addgroup_script());
1178 if (! *add_script) return -1;
1179 pstring_sub(add_script, "%g", unix_group);
1180 ret = smbrun(add_script, (new_gid!=NULL) ? &fd : NULL);
1181 DEBUG(3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
1182 if (ret != 0)
1183 return ret;
1185 if (fd != 0) {
1186 fstring output;
1188 *new_gid = 0;
1189 if (read(fd, output, sizeof(output)) > 0) {
1190 *new_gid = (gid_t)strtoul(output, NULL, 10);
1192 close(fd);
1194 if (*new_gid == 0) {
1195 /* The output was garbage. We assume nobody
1196 will create group 0 via smbd. Now we try to
1197 get the group via getgrnam. */
1199 struct group *grp = getgrnam(unix_group);
1200 if (grp != NULL)
1201 *new_gid = grp->gr_gid;
1202 else
1203 return 1;
1207 return ret;
1210 /****************************************************************************
1211 Delete a UNIX group on demand.
1212 ****************************************************************************/
1214 int smb_delete_group(char *unix_group)
1216 pstring del_script;
1217 int ret;
1219 pstrcpy(del_script, lp_delgroup_script());
1220 if (! *del_script) return -1;
1221 pstring_sub(del_script, "%g", unix_group);
1222 ret = smbrun(del_script,NULL);
1223 DEBUG(3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
1224 return ret;
1227 /****************************************************************************
1228 Set a user's primary UNIX group.
1229 ****************************************************************************/
1230 int smb_set_primary_group(const char *unix_group, const char* unix_user)
1232 pstring add_script;
1233 int ret;
1235 pstrcpy(add_script, lp_setprimarygroup_script());
1236 if (! *add_script) return -1;
1237 all_string_sub(add_script, "%g", unix_group, sizeof(add_script));
1238 all_string_sub(add_script, "%u", unix_user, sizeof(add_script));
1239 ret = smbrun(add_script,NULL);
1240 DEBUG(3,("smb_set_primary_group: "
1241 "Running the command `%s' gave %d\n",add_script,ret));
1242 return ret;
1245 /****************************************************************************
1246 Add a user to a UNIX group.
1247 ****************************************************************************/
1249 int smb_add_user_group(char *unix_group, char *unix_user)
1251 pstring add_script;
1252 int ret;
1254 pstrcpy(add_script, lp_addusertogroup_script());
1255 if (! *add_script) return -1;
1256 pstring_sub(add_script, "%g", unix_group);
1257 pstring_sub(add_script, "%u", unix_user);
1258 ret = smbrun(add_script,NULL);
1259 DEBUG(3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
1260 return ret;
1263 /****************************************************************************
1264 Delete a user from a UNIX group
1265 ****************************************************************************/
1267 int smb_delete_user_group(const char *unix_group, const char *unix_user)
1269 pstring del_script;
1270 int ret;
1272 pstrcpy(del_script, lp_deluserfromgroup_script());
1273 if (! *del_script) return -1;
1274 pstring_sub(del_script, "%g", unix_group);
1275 pstring_sub(del_script, "%u", unix_user);
1276 ret = smbrun(del_script,NULL);
1277 DEBUG(3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
1278 return ret;
1282 NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
1283 DOM_SID sid, BOOL with_priv)
1285 return get_group_map_from_sid(sid, map, with_priv) ?
1286 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1289 NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
1290 gid_t gid, BOOL with_priv)
1292 return get_group_map_from_gid(gid, map, with_priv) ?
1293 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1296 NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
1297 char *name, BOOL with_priv)
1299 return get_group_map_from_ntname(name, map, with_priv) ?
1300 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1303 NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
1304 GROUP_MAP *map)
1306 return add_mapping_entry(map, TDB_INSERT) ?
1307 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1310 NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
1311 GROUP_MAP *map)
1313 return add_mapping_entry(map, TDB_REPLACE) ?
1314 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1317 NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
1318 DOM_SID sid)
1320 return group_map_remove(sid) ?
1321 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1324 NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
1325 enum SID_NAME_USE sid_name_use,
1326 GROUP_MAP **rmap, int *num_entries,
1327 BOOL unix_only, BOOL with_priv)
1329 return enum_group_mapping(sid_name_use, rmap, num_entries, unix_only,
1330 with_priv) ?
1331 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;