2 Unix SMB/CIFS implementation.
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) Jeremy Allison 2006
9 Copyright (C) Simo Sorce 2003-2006
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #define DBGC_CLASS DBGC_IDMAP
31 /* High water mark keys */
32 #define HWM_GROUP "GROUP HWM"
33 #define HWM_USER "USER HWM"
35 static struct idmap_tdb_state {
37 /* User and group id pool */
38 uid_t low_uid, high_uid; /* Range of uids to allocate */
39 gid_t low_gid, high_gid; /* Range of gids to allocate */
43 /*****************************************************************************
44 For idmap conversion: convert one record to new format
45 Ancient versions (eg 2.2.3a) of winbindd_idmap.tdb mapped DOMAINNAME/rid
47 *****************************************************************************/
48 static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state)
50 struct winbindd_domain *domain;
57 bool *failed = (bool *)state;
59 DEBUG(10,("Converting %s\n", (const char *)key.dptr));
61 p = strchr((const char *)key.dptr, '/');
66 fstrcpy(dom_name, (const char *)key.dptr);
69 domain = find_domain_from_name(dom_name);
71 /* We must delete the old record. */
72 DEBUG(0,("Unable to find domain %s\n", dom_name ));
73 DEBUG(0,("deleting record %s\n", (const char *)key.dptr ));
75 if (tdb_delete(tdb, key) != 0) {
76 DEBUG(0, ("Unable to delete record %s\n", (const char *)key.dptr));
86 sid_copy(&sid, &domain->sid);
87 sid_append_rid(&sid, rid);
89 sid_to_fstring(keystr, &sid);
90 key2 = string_term_tdb_data(keystr);
92 if (tdb_store(tdb, key2, data, TDB_INSERT) != 0) {
93 DEBUG(0,("Unable to add record %s\n", (const char *)key2.dptr ));
98 if (tdb_store(tdb, data, key2, TDB_REPLACE) != 0) {
99 DEBUG(0,("Unable to update record %s\n", (const char *)data.dptr ));
104 if (tdb_delete(tdb, key) != 0) {
105 DEBUG(0,("Unable to delete record %s\n", (const char *)key.dptr ));
113 /*****************************************************************************
114 Convert the idmap database from an older version.
115 *****************************************************************************/
117 static bool idmap_tdb_upgrade(const char *idmap_name)
120 bool bigendianheader;
122 TDB_CONTEXT *idmap_tdb;
124 DEBUG(0, ("Upgrading winbindd_idmap.tdb from an old version\n"));
126 if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
129 DEBUG(0, ("Unable to open idmap database\n"));
133 bigendianheader = (tdb_get_flags(idmap_tdb) & TDB_BIGENDIAN) ? True : False;
135 vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION");
137 if (((vers == -1) && bigendianheader) || (IREV(vers) == IDMAP_VERSION)) {
138 /* Arrggghh ! Bytereversed or old big-endian - make order independent ! */
140 * high and low records were created on a
141 * big endian machine and will need byte-reversing.
146 wm = tdb_fetch_int32(idmap_tdb, HWM_USER);
151 wm = idmap_tdb_state.low_uid;
154 if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) {
155 DEBUG(0, ("Unable to byteswap user hwm in idmap database\n"));
156 tdb_close(idmap_tdb);
160 wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP);
164 wm = idmap_tdb_state.low_gid;
167 if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) {
168 DEBUG(0, ("Unable to byteswap group hwm in idmap database\n"));
169 tdb_close(idmap_tdb);
174 /* the old format stored as DOMAIN/rid - now we store the SID direct */
175 tdb_traverse(idmap_tdb, convert_fn, &failed);
178 DEBUG(0, ("Problem during conversion\n"));
179 tdb_close(idmap_tdb);
183 if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
184 DEBUG(0, ("Unable to dtore idmap version in databse\n"));
185 tdb_close(idmap_tdb);
189 tdb_close(idmap_tdb);
193 /* WARNING: We can't open a tdb twice inthe same process, for that reason
194 * I'm going to use a hack with open ref counts to open the winbindd_idmap.tdb
195 * only once. We will later decide whether to split the db in multiple files
196 * or come up with a better solution to share them. */
198 static TDB_CONTEXT *idmap_tdb_common_ctx;
199 static int idmap_tdb_open_ref_count = 0;
201 static NTSTATUS idmap_tdb_open_db(TALLOC_CTX *memctx, TDB_CONTEXT **tdbctx)
205 SMB_STRUCT_STAT stbuf;
206 char *tdbfile = NULL;
208 bool tdb_is_new = False;
210 if (idmap_tdb_open_ref_count) { /* the tdb has already been opened */
211 idmap_tdb_open_ref_count++;
212 *tdbctx = idmap_tdb_common_ctx;
216 /* use our own context here */
217 ctx = talloc_new(memctx);
219 DEBUG(0, ("Out of memory!\n"));
220 return NT_STATUS_NO_MEMORY;
223 /* use the old database if present */
224 tdbfile = talloc_strdup(ctx, state_path("winbindd_idmap.tdb"));
226 DEBUG(0, ("Out of memory!\n"));
227 ret = NT_STATUS_NO_MEMORY;
231 if (!file_exist(tdbfile, &stbuf)) {
235 DEBUG(10,("Opening tdbfile %s\n", tdbfile ));
237 /* Open idmap repository */
238 if (!(idmap_tdb_common_ctx = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644))) {
239 DEBUG(0, ("Unable to open idmap database\n"));
240 ret = NT_STATUS_UNSUCCESSFUL;
245 /* the file didn't existed before opening it, let's
246 * store idmap version as nobody else yet opened and
247 * stored it. I do not like this method but didn't
248 * found a way to understand if an opened tdb have
249 * been just created or not --- SSS */
250 tdb_store_int32(idmap_tdb_common_ctx, "IDMAP_VERSION", IDMAP_VERSION);
253 /* check against earlier versions */
254 version = tdb_fetch_int32(idmap_tdb_common_ctx, "IDMAP_VERSION");
255 if (version != IDMAP_VERSION) {
257 /* backup_tdb expects the tdb not to be open */
258 tdb_close(idmap_tdb_common_ctx);
260 if ( ! idmap_tdb_upgrade(tdbfile)) {
262 DEBUG(0, ("Unable to open idmap database, it's in an old formati, and upgrade failed!\n"));
263 ret = NT_STATUS_INTERNAL_DB_ERROR;
267 /* Re-Open idmap repository */
268 if (!(idmap_tdb_common_ctx = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644))) {
269 DEBUG(0, ("Unable to open idmap database\n"));
270 ret = NT_STATUS_UNSUCCESSFUL;
275 *tdbctx = idmap_tdb_common_ctx;
276 idmap_tdb_open_ref_count++;
284 /* NEVER use tdb_close() except for the conversion routines that are guaranteed
285 * to run only when the database is opened the first time, always use this function. */
287 bool idmap_tdb_tdb_close(TDB_CONTEXT *tdbctx)
289 if (tdbctx != idmap_tdb_common_ctx) {
290 DEBUG(0, ("ERROR: Invalid tdb context!"));
294 idmap_tdb_open_ref_count--;
295 if (idmap_tdb_open_ref_count) {
299 return tdb_close(idmap_tdb_common_ctx);
302 /**********************************************************************
303 IDMAP ALLOC TDB BACKEND
304 **********************************************************************/
306 static TDB_CONTEXT *idmap_alloc_tdb;
308 /**********************************
309 Initialise idmap alloc database.
310 **********************************/
312 static NTSTATUS idmap_tdb_alloc_init( const char *params )
321 uint32_t low_id, high_id;
323 /* use our own context here */
324 ctx = talloc_new(NULL);
326 DEBUG(0, ("Out of memory!\n"));
327 return NT_STATUS_NO_MEMORY;
330 ret = idmap_tdb_open_db(ctx, &idmap_alloc_tdb);
331 if ( ! NT_STATUS_IS_OK(ret)) {
340 if (!lp_idmap_uid(&low_uid, &high_uid)
341 || !lp_idmap_gid(&low_gid, &high_gid)) {
342 DEBUG(1, ("idmap uid or idmap gid missing\n"));
343 return NT_STATUS_UNSUCCESSFUL;
346 idmap_tdb_state.low_uid = low_uid;
347 idmap_tdb_state.high_uid = high_uid;
348 idmap_tdb_state.low_gid = low_gid;
349 idmap_tdb_state.high_gid = high_gid;
351 if (idmap_tdb_state.high_uid <= idmap_tdb_state.low_uid) {
352 DEBUG(1, ("idmap uid range missing or invalid\n"));
353 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
354 return NT_STATUS_UNSUCCESSFUL;
357 if (idmap_tdb_state.high_gid <= idmap_tdb_state.low_gid) {
358 DEBUG(1, ("idmap gid range missing or invalid\n"));
359 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
360 return NT_STATUS_UNSUCCESSFUL;
363 if (((low_id = tdb_fetch_int32(idmap_alloc_tdb, HWM_USER)) == -1) ||
364 (low_id < idmap_tdb_state.low_uid)) {
365 if (tdb_store_int32(idmap_alloc_tdb, HWM_USER,
366 idmap_tdb_state.low_uid) == -1) {
367 DEBUG(0, ("Unable to initialise user hwm in idmap "
369 return NT_STATUS_INTERNAL_DB_ERROR;
373 if (((low_id = tdb_fetch_int32(idmap_alloc_tdb, HWM_GROUP)) == -1) ||
374 (low_id < idmap_tdb_state.low_gid)) {
375 if (tdb_store_int32(idmap_alloc_tdb, HWM_GROUP,
376 idmap_tdb_state.low_gid) == -1) {
377 DEBUG(0, ("Unable to initialise group hwm in idmap "
379 return NT_STATUS_INTERNAL_DB_ERROR;
386 /**********************************
388 **********************************/
390 static NTSTATUS idmap_tdb_allocate_id(struct unixid *xid)
398 /* Get current high water mark */
404 high_hwm = idmap_tdb_state.high_uid;
410 high_hwm = idmap_tdb_state.high_gid;
414 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
415 return NT_STATUS_INVALID_PARAMETER;
418 if ((hwm = tdb_fetch_int32(idmap_alloc_tdb, hwmkey)) == -1) {
419 return NT_STATUS_INTERNAL_DB_ERROR;
422 /* check it is in the range */
423 if (hwm > high_hwm) {
424 DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
425 hwmtype, (unsigned long)high_hwm));
426 return NT_STATUS_UNSUCCESSFUL;
429 /* fetch a new id and increment it */
430 ret = tdb_change_uint32_atomic(idmap_alloc_tdb, hwmkey, &hwm, 1);
432 DEBUG(1, ("Fatal error while fetching a new %s value\n!", hwmtype));
433 return NT_STATUS_UNSUCCESSFUL;
436 /* recheck it is in the range */
437 if (hwm > high_hwm) {
438 DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
439 hwmtype, (unsigned long)high_hwm));
440 return NT_STATUS_UNSUCCESSFUL;
444 DEBUG(10,("New %s = %d\n", hwmtype, hwm));
449 /**********************************
450 Get current highest id.
451 **********************************/
453 static NTSTATUS idmap_tdb_get_hwm(struct unixid *xid)
460 /* Get current high water mark */
466 high_hwm = idmap_tdb_state.high_uid;
472 high_hwm = idmap_tdb_state.high_gid;
476 return NT_STATUS_INVALID_PARAMETER;
479 if ((hwm = tdb_fetch_int32(idmap_alloc_tdb, hwmkey)) == -1) {
480 return NT_STATUS_INTERNAL_DB_ERROR;
485 /* Warn if it is out of range */
486 if (hwm >= high_hwm) {
487 DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
488 hwmtype, (unsigned long)high_hwm));
494 /**********************************
496 **********************************/
498 static NTSTATUS idmap_tdb_set_hwm(struct unixid *xid)
505 /* Get current high water mark */
511 high_hwm = idmap_tdb_state.high_uid;
517 high_hwm = idmap_tdb_state.high_gid;
521 return NT_STATUS_INVALID_PARAMETER;
526 if ((hwm = tdb_store_int32(idmap_alloc_tdb, hwmkey, hwm)) == -1) {
527 return NT_STATUS_INTERNAL_DB_ERROR;
530 /* Warn if it is out of range */
531 if (hwm >= high_hwm) {
532 DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
533 hwmtype, (unsigned long)high_hwm));
539 /**********************************
541 **********************************/
543 static NTSTATUS idmap_tdb_alloc_close(void)
545 if (idmap_alloc_tdb) {
546 if (idmap_tdb_tdb_close(idmap_alloc_tdb) == 0) {
549 return NT_STATUS_UNSUCCESSFUL;
555 /**********************************************************************
556 IDMAP MAPPING TDB BACKEND
557 **********************************************************************/
559 struct idmap_tdb_context {
561 uint32_t filter_low_id;
562 uint32_t filter_high_id;
565 /*****************************
566 Initialise idmap database.
567 *****************************/
569 static NTSTATUS idmap_tdb_db_init(struct idmap_domain *dom, const char *params)
572 struct idmap_tdb_context *ctx;
573 char *config_option = NULL;
576 ctx = talloc(dom, struct idmap_tdb_context);
578 DEBUG(0, ("Out of memory!\n"));
579 return NT_STATUS_NO_MEMORY;
582 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
583 if ( ! config_option) {
584 DEBUG(0, ("Out of memory!\n"));
585 ret = NT_STATUS_NO_MEMORY;
589 ret = idmap_tdb_open_db(ctx, &ctx->tdb);
590 if ( ! NT_STATUS_IS_OK(ret)) {
594 range = lp_parm_const_string(-1, config_option, "range", NULL);
596 (sscanf(range, "%u - %u", &ctx->filter_low_id, &ctx->filter_high_id) != 2) ||
597 (ctx->filter_low_id > ctx->filter_high_id)) {
598 ctx->filter_low_id = 0;
599 ctx->filter_high_id = 0;
602 dom->private_data = ctx;
604 talloc_free(config_option);
612 /**********************************
613 Single id to sid lookup function.
614 **********************************/
616 static NTSTATUS idmap_tdb_id_to_sid(struct idmap_tdb_context *ctx, struct id_map *map)
623 return NT_STATUS_INVALID_PARAMETER;
626 /* apply filters before checking */
627 if ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
628 (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
629 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
630 map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
631 return NT_STATUS_NONE_MAPPED;
634 switch (map->xid.type) {
637 keystr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
641 keystr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
645 DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
646 return NT_STATUS_INVALID_PARAMETER;
649 /* final SAFE_FREE safe */
652 if (keystr == NULL) {
653 DEBUG(0, ("Out of memory!\n"));
654 ret = NT_STATUS_NO_MEMORY;
658 DEBUG(10,("Fetching record %s\n", keystr));
660 /* Check if the mapping exists */
661 data = tdb_fetch_bystring(ctx->tdb, keystr);
664 DEBUG(10,("Record %s not found\n", keystr));
665 ret = NT_STATUS_NONE_MAPPED;
669 if (!string_to_sid(map->sid, (const char *)data.dptr)) {
670 DEBUG(10,("INVALID SID (%s) in record %s\n",
671 (const char *)data.dptr, keystr));
672 ret = NT_STATUS_INTERNAL_DB_ERROR;
676 DEBUG(10,("Found record %s -> %s\n", keystr, (const char *)data.dptr));
680 SAFE_FREE(data.dptr);
685 /**********************************
686 Single sid to id lookup function.
687 **********************************/
689 static NTSTATUS idmap_tdb_sid_to_id(struct idmap_tdb_context *ctx, struct id_map *map)
694 unsigned long rec_id = 0;
697 if ((keystr = talloc_asprintf(
698 ctx, "%s", sid_to_fstring(tmp, map->sid))) == NULL) {
699 DEBUG(0, ("Out of memory!\n"));
700 ret = NT_STATUS_NO_MEMORY;
704 DEBUG(10,("Fetching record %s\n", keystr));
706 /* Check if sid is present in database */
707 data = tdb_fetch_bystring(ctx->tdb, keystr);
709 DEBUG(10,("Record %s not found\n", keystr));
710 ret = NT_STATUS_NONE_MAPPED;
714 /* What type of record is this ? */
715 if (sscanf((const char *)data.dptr, "UID %lu", &rec_id) == 1) { /* Try a UID record. */
716 map->xid.id = rec_id;
717 map->xid.type = ID_TYPE_UID;
718 DEBUG(10,("Found uid record %s -> %s \n", keystr, (const char *)data.dptr ));
721 } else if (sscanf((const char *)data.dptr, "GID %lu", &rec_id) == 1) { /* Try a GID record. */
722 map->xid.id = rec_id;
723 map->xid.type = ID_TYPE_GID;
724 DEBUG(10,("Found gid record %s -> %s \n", keystr, (const char *)data.dptr ));
727 } else { /* Unknown record type ! */
728 DEBUG(2, ("Found INVALID record %s -> %s\n", keystr, (const char *)data.dptr));
729 ret = NT_STATUS_INTERNAL_DB_ERROR;
732 SAFE_FREE(data.dptr);
734 /* apply filters before returning result */
735 if ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
736 (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
737 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
738 map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
739 ret = NT_STATUS_NONE_MAPPED;
747 /**********************************
748 lookup a set of unix ids.
749 **********************************/
751 static NTSTATUS idmap_tdb_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
753 struct idmap_tdb_context *ctx;
757 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
759 for (i = 0; ids[i]; i++) {
760 ret = idmap_tdb_id_to_sid(ctx, ids[i]);
761 if ( ! NT_STATUS_IS_OK(ret)) {
763 /* if it is just a failed mapping continue */
764 if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
766 /* make sure it is marked as unmapped */
767 ids[i]->status = ID_UNMAPPED;
771 /* some fatal error occurred, return immediately */
775 /* all ok, id is mapped */
776 ids[i]->status = ID_MAPPED;
785 /**********************************
786 lookup a set of sids.
787 **********************************/
789 static NTSTATUS idmap_tdb_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
791 struct idmap_tdb_context *ctx;
795 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
797 for (i = 0; ids[i]; i++) {
798 ret = idmap_tdb_sid_to_id(ctx, ids[i]);
799 if ( ! NT_STATUS_IS_OK(ret)) {
801 /* if it is just a failed mapping continue */
802 if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
804 /* make sure it is marked as unmapped */
805 ids[i]->status = ID_UNMAPPED;
809 /* some fatal error occurred, return immediately */
813 /* all ok, id is mapped */
814 ids[i]->status = ID_MAPPED;
823 /**********************************
825 **********************************/
827 static NTSTATUS idmap_tdb_set_mapping(struct idmap_domain *dom, const struct id_map *map)
829 struct idmap_tdb_context *ctx;
831 TDB_DATA ksid, kid, data;
832 char *ksidstr, *kidstr;
835 if (!map || !map->sid) {
836 return NT_STATUS_INVALID_PARAMETER;
839 ksidstr = kidstr = NULL;
842 /* TODO: should we filter a set_mapping using low/high filters ? */
844 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
846 switch (map->xid.type) {
849 kidstr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
853 kidstr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
857 DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
858 return NT_STATUS_INVALID_PARAMETER;
861 if (kidstr == NULL) {
862 DEBUG(0, ("ERROR: Out of memory!\n"));
863 ret = NT_STATUS_NO_MEMORY;
867 if ((ksidstr = talloc_asprintf(
868 ctx, "%s", sid_to_fstring(tmp, map->sid))) == NULL) {
869 DEBUG(0, ("Out of memory!\n"));
870 ret = NT_STATUS_NO_MEMORY;
874 DEBUG(10, ("Storing %s <-> %s map\n", ksidstr, kidstr));
875 kid = string_term_tdb_data(kidstr);
876 ksid = string_term_tdb_data(ksidstr);
878 /* *DELETE* previous mappings if any.
879 * This is done both SID and [U|G]ID passed in */
881 /* Lock the record for this SID. */
882 if (tdb_chainlock(ctx->tdb, ksid) != 0) {
883 DEBUG(10,("Failed to lock record %s. Error %s\n",
884 ksidstr, tdb_errorstr(ctx->tdb) ));
885 return NT_STATUS_UNSUCCESSFUL;
888 data = tdb_fetch(ctx->tdb, ksid);
890 DEBUG(10, ("Deleting existing mapping %s <-> %s\n", (const char *)data.dptr, ksidstr ));
891 tdb_delete(ctx->tdb, data);
892 tdb_delete(ctx->tdb, ksid);
893 SAFE_FREE(data.dptr);
896 data = tdb_fetch(ctx->tdb, kid);
898 DEBUG(10,("Deleting existing mapping %s <-> %s\n", (const char *)data.dptr, kidstr ));
899 tdb_delete(ctx->tdb, data);
900 tdb_delete(ctx->tdb, kid);
901 SAFE_FREE(data.dptr);
904 if (tdb_store(ctx->tdb, ksid, kid, TDB_INSERT) == -1) {
905 DEBUG(0, ("Error storing SID -> ID: %s\n", tdb_errorstr(ctx->tdb)));
906 tdb_chainunlock(ctx->tdb, ksid);
907 ret = NT_STATUS_UNSUCCESSFUL;
910 if (tdb_store(ctx->tdb, kid, ksid, TDB_INSERT) == -1) {
911 DEBUG(0, ("Error stroing ID -> SID: %s\n", tdb_errorstr(ctx->tdb)));
912 /* try to remove the previous stored SID -> ID map */
913 tdb_delete(ctx->tdb, ksid);
914 tdb_chainunlock(ctx->tdb, ksid);
915 ret = NT_STATUS_UNSUCCESSFUL;
919 tdb_chainunlock(ctx->tdb, ksid);
920 DEBUG(10,("Stored %s <-> %s\n", ksidstr, kidstr));
924 talloc_free(ksidstr);
926 SAFE_FREE(data.dptr);
930 /**********************************
932 **********************************/
934 static NTSTATUS idmap_tdb_remove_mapping(struct idmap_domain *dom, const struct id_map *map)
936 struct idmap_tdb_context *ctx;
938 TDB_DATA ksid, kid, data;
939 char *ksidstr, *kidstr;
942 if (!map || !map->sid) {
943 return NT_STATUS_INVALID_PARAMETER;
946 ksidstr = kidstr = NULL;
949 /* TODO: should we filter a remove_mapping using low/high filters ? */
951 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
953 switch (map->xid.type) {
956 kidstr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
960 kidstr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
964 DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
965 return NT_STATUS_INVALID_PARAMETER;
968 if (kidstr == NULL) {
969 DEBUG(0, ("ERROR: Out of memory!\n"));
970 ret = NT_STATUS_NO_MEMORY;
974 if ((ksidstr = talloc_asprintf(
975 ctx, "%s", sid_to_fstring(tmp, map->sid))) == NULL) {
976 DEBUG(0, ("Out of memory!\n"));
977 ret = NT_STATUS_NO_MEMORY;
981 DEBUG(10, ("Checking %s <-> %s map\n", ksidstr, kidstr));
982 ksid = string_term_tdb_data(ksidstr);
983 kid = string_term_tdb_data(kidstr);
985 /* Lock the record for this SID. */
986 if (tdb_chainlock(ctx->tdb, ksid) != 0) {
987 DEBUG(10,("Failed to lock record %s. Error %s\n",
988 ksidstr, tdb_errorstr(ctx->tdb) ));
989 return NT_STATUS_UNSUCCESSFUL;
992 /* Check if sid is present in database */
993 data = tdb_fetch(ctx->tdb, ksid);
995 DEBUG(10,("Record %s not found\n", ksidstr));
996 tdb_chainunlock(ctx->tdb, ksid);
997 ret = NT_STATUS_NONE_MAPPED;
1001 /* Check if sid is mapped to the specified ID */
1002 if ((data.dsize != kid.dsize) ||
1003 (memcmp(data.dptr, kid.dptr, data.dsize) != 0)) {
1004 DEBUG(10,("Specified SID does not map to specified ID\n"));
1005 DEBUGADD(10,("Actual mapping is %s -> %s\n", ksidstr, (const char *)data.dptr));
1006 tdb_chainunlock(ctx->tdb, ksid);
1007 ret = NT_STATUS_NONE_MAPPED;
1011 DEBUG(10, ("Removing %s <-> %s map\n", ksidstr, kidstr));
1013 /* Delete previous mappings. */
1015 DEBUG(10, ("Deleting existing mapping %s -> %s\n", ksidstr, kidstr ));
1016 tdb_delete(ctx->tdb, ksid);
1018 DEBUG(10,("Deleting existing mapping %s -> %s\n", kidstr, ksidstr ));
1019 tdb_delete(ctx->tdb, kid);
1021 tdb_chainunlock(ctx->tdb, ksid);
1025 talloc_free(ksidstr);
1026 talloc_free(kidstr);
1027 SAFE_FREE(data.dptr);
1031 /**********************************
1032 Close the idmap tdb instance
1033 **********************************/
1035 static NTSTATUS idmap_tdb_close(struct idmap_domain *dom)
1037 struct idmap_tdb_context *ctx;
1039 if (dom->private_data) {
1040 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
1042 if (idmap_tdb_tdb_close(ctx->tdb) == 0) {
1043 return NT_STATUS_OK;
1045 return NT_STATUS_UNSUCCESSFUL;
1048 return NT_STATUS_OK;
1053 struct id_map **maps;
1058 static int idmap_tdb_dump_one_entry(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA value, void *pdata)
1060 struct dump_data *data = talloc_get_type(pdata, struct dump_data);
1061 struct id_map *maps;
1062 int num_maps = *data->num_maps;
1064 /* ignore any record but the ones with a SID as key */
1065 if (strncmp((const char *)key.dptr, "S-", 2) == 0) {
1067 maps = talloc_realloc(NULL, *data->maps, struct id_map, num_maps+1);
1069 DEBUG(0, ("Out of memory!\n"));
1070 data->ret = NT_STATUS_NO_MEMORY;
1074 maps[num_maps].sid = talloc(maps, DOM_SID);
1075 if ( ! maps[num_maps].sid) {
1076 DEBUG(0, ("Out of memory!\n"));
1077 data->ret = NT_STATUS_NO_MEMORY;
1081 if (!string_to_sid(maps[num_maps].sid, (const char *)key.dptr)) {
1082 DEBUG(10,("INVALID record %s\n", (const char *)key.dptr));
1083 /* continue even with errors */
1087 /* Try a UID record. */
1088 if (sscanf((const char *)value.dptr, "UID %u", &(maps[num_maps].xid.id)) == 1) {
1089 maps[num_maps].xid.type = ID_TYPE_UID;
1090 maps[num_maps].status = ID_MAPPED;
1091 *data->num_maps = num_maps + 1;
1093 /* Try a GID record. */
1095 if (sscanf((const char *)value.dptr, "GID %u", &(maps[num_maps].xid.id)) == 1) {
1096 maps[num_maps].xid.type = ID_TYPE_GID;
1097 maps[num_maps].status = ID_MAPPED;
1098 *data->num_maps = num_maps + 1;
1100 /* Unknown record type ! */
1102 maps[num_maps].status = ID_UNKNOWN;
1103 DEBUG(2, ("Found INVALID record %s -> %s\n",
1104 (const char *)key.dptr, (const char *)value.dptr));
1105 /* do not increment num_maps */
1112 /**********************************
1113 Dump all mappings out
1114 **********************************/
1116 static NTSTATUS idmap_tdb_dump_data(struct idmap_domain *dom, struct id_map **maps, int *num_maps)
1118 struct idmap_tdb_context *ctx;
1119 struct dump_data *data;
1120 NTSTATUS ret = NT_STATUS_OK;
1122 ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
1124 data = TALLOC_ZERO_P(ctx, struct dump_data);
1126 DEBUG(0, ("Out of memory!\n"));
1127 return NT_STATUS_NO_MEMORY;
1130 data->num_maps = num_maps;
1131 data->ret = NT_STATUS_OK;
1133 tdb_traverse(ctx->tdb, idmap_tdb_dump_one_entry, data);
1135 if ( ! NT_STATUS_IS_OK(data->ret)) {
1143 static struct idmap_methods db_methods = {
1145 .init = idmap_tdb_db_init,
1146 .unixids_to_sids = idmap_tdb_unixids_to_sids,
1147 .sids_to_unixids = idmap_tdb_sids_to_unixids,
1148 .set_mapping = idmap_tdb_set_mapping,
1149 .remove_mapping = idmap_tdb_remove_mapping,
1150 .dump_data = idmap_tdb_dump_data,
1151 .close_fn = idmap_tdb_close
1154 static struct idmap_alloc_methods db_alloc_methods = {
1156 .init = idmap_tdb_alloc_init,
1157 .allocate_id = idmap_tdb_allocate_id,
1158 .get_id_hwm = idmap_tdb_get_hwm,
1159 .set_id_hwm = idmap_tdb_set_hwm,
1160 .close_fn = idmap_tdb_alloc_close
1163 NTSTATUS idmap_alloc_tdb_init(void)
1165 return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "tdb", &db_alloc_methods);
1168 NTSTATUS idmap_tdb_init(void)
1172 DEBUG(10, ("calling idmap_tdb_init\n"));
1174 /* FIXME: bad hack to actually register also the alloc_tdb module without changining configure.in */
1175 ret = idmap_alloc_tdb_init();
1176 if (! NT_STATUS_IS_OK(ret)) {
1179 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "tdb", &db_methods);