2 Unix SMB/CIFS implementation.
4 idmap TDB2 backend, used for clustered Samba setups.
6 This uses 2 tdb files. One is permanent, and is in shared storage
7 on the cluster (using "tdb:idmap2.tdb =" in smb.conf). The other is a
8 temporary cache tdb on local storage.
10 Copyright (C) Andrew Tridgell 2007
12 This is heavily based upon idmap_tdb.c, which is:
14 Copyright (C) Tim Potter 2000
15 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
16 Copyright (C) Jeremy Allison 2006
17 Copyright (C) Simo Sorce 2003-2006
19 This program is free software; you can redistribute it and/or modify
20 it under the terms of the GNU General Public License as published by
21 the Free Software Foundation; either version 2 of the License, or
22 (at your option) any later version.
24 This program is distributed in the hope that it will be useful,
25 but WITHOUT ANY WARRANTY; without even the implied warranty of
26 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 GNU General Public License for more details.
29 You should have received a copy of the GNU General Public License
30 along with this program; if not, write to the Free Software
31 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 #define DBGC_CLASS DBGC_IDMAP
40 /* High water mark keys */
41 #define HWM_GROUP "GROUP HWM"
42 #define HWM_USER "USER HWM"
44 static struct idmap_tdb2_state
{
45 /* User and group id pool */
46 uid_t low_uid
, high_uid
; /* Range of uids to allocate */
47 gid_t low_gid
, high_gid
; /* Range of gids to allocate */
48 const char *idmap_script
;
53 /* tdb context for the local cache tdb */
54 static TDB_CONTEXT
*idmap_tdb2_tmp
;
56 /* handle to the permanent tdb */
57 static struct db_context
*idmap_tdb2_perm
;
62 static NTSTATUS
idmap_tdb2_open_cache_db(void)
67 /* its already open */
71 db_path
= lock_path("idmap2_cache.tdb");
73 /* Open idmap repository */
74 if (!(idmap_tdb2_tmp
= tdb_open_log(db_path
, 0, TDB_CLEAR_IF_FIRST
, O_RDWR
|O_CREAT
, 0644))) {
75 DEBUG(0, ("Unable to open cache idmap database '%s'\n", db_path
));
76 return NT_STATUS_UNSUCCESSFUL
;
83 static NTSTATUS
idmap_tdb2_alloc_load(void);
86 open the permanent tdb
88 static NTSTATUS
idmap_tdb2_open_perm_db(void)
92 if (idmap_tdb2_perm
) {
93 /* its already open */
97 db_path
= lp_parm_talloc_string(-1, "tdb", "idmap2.tdb", NULL
);
98 if (db_path
== NULL
) {
99 /* fall back to the private directory, which, despite
100 its name, is usually on shared storage */
101 db_path
= talloc_asprintf(NULL
, "%s/idmap2.tdb", lp_private_dir());
103 NT_STATUS_HAVE_NO_MEMORY(db_path
);
105 /* Open idmap repository */
106 idmap_tdb2_perm
= db_open(NULL
, db_path
, 0, TDB_DEFAULT
,
107 O_RDWR
|O_CREAT
, 0644);
108 TALLOC_FREE(db_path
);
110 if (idmap_tdb2_perm
== NULL
) {
111 DEBUG(0, ("Unable to open permanent idmap database '%s'\n",
113 return NT_STATUS_UNSUCCESSFUL
;
116 /* load the ranges and high/low water marks */
117 return idmap_tdb2_alloc_load();
122 load the idmap allocation ranges and high/low water marks
124 static NTSTATUS
idmap_tdb2_alloc_load(void)
133 idmap_tdb2_state
.low_uid
= 0;
134 idmap_tdb2_state
.high_uid
= 0;
135 idmap_tdb2_state
.low_gid
= 0;
136 idmap_tdb2_state
.high_gid
= 0;
138 /* see if a idmap script is configured */
139 idmap_tdb2_state
.idmap_script
= lp_parm_const_string(-1, "idmap", "script", NULL
);
141 if (idmap_tdb2_state
.idmap_script
) {
142 DEBUG(1, ("using idmap script '%s'\n", idmap_tdb2_state
.idmap_script
));
145 range
= lp_parm_const_string(-1, "idmap alloc config", "range", NULL
);
146 if (range
&& range
[0]) {
147 unsigned low_id
, high_id
;
148 if (sscanf(range
, "%u - %u", &low_id
, &high_id
) == 2) {
149 if (low_id
< high_id
) {
150 idmap_tdb2_state
.low_gid
= idmap_tdb2_state
.low_uid
= low_id
;
151 idmap_tdb2_state
.high_gid
= idmap_tdb2_state
.high_uid
= high_id
;
153 DEBUG(1, ("ERROR: invalid idmap alloc range [%s]", range
));
156 DEBUG(1, ("ERROR: invalid syntax for idmap alloc config:range [%s]", range
));
160 /* Create high water marks for group and user id */
161 if (lp_idmap_uid(&low_uid
, &high_uid
)) {
162 idmap_tdb2_state
.low_uid
= low_uid
;
163 idmap_tdb2_state
.high_uid
= high_uid
;
166 if (lp_idmap_gid(&low_gid
, &high_gid
)) {
167 idmap_tdb2_state
.low_gid
= low_gid
;
168 idmap_tdb2_state
.high_gid
= high_gid
;
171 if (idmap_tdb2_state
.high_uid
<= idmap_tdb2_state
.low_uid
) {
172 DEBUG(1, ("idmap uid range missing or invalid\n"));
173 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
174 return NT_STATUS_UNSUCCESSFUL
;
178 if (((low_id
= dbwrap_fetch_int32(idmap_tdb2_perm
,
180 (low_id
< idmap_tdb2_state
.low_uid
)) {
181 if (dbwrap_store_int32(
182 idmap_tdb2_perm
, HWM_USER
,
183 idmap_tdb2_state
.low_uid
) == -1) {
184 DEBUG(0, ("Unable to initialise user hwm in idmap database\n"));
185 return NT_STATUS_INTERNAL_DB_ERROR
;
190 if (idmap_tdb2_state
.high_gid
<= idmap_tdb2_state
.low_gid
) {
191 DEBUG(1, ("idmap gid range missing or invalid\n"));
192 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
193 return NT_STATUS_UNSUCCESSFUL
;
197 if (((low_id
= dbwrap_fetch_int32(idmap_tdb2_perm
,
198 HWM_GROUP
)) == -1) ||
199 (low_id
< idmap_tdb2_state
.low_gid
)) {
200 if (dbwrap_store_int32(
201 idmap_tdb2_perm
, HWM_GROUP
,
202 idmap_tdb2_state
.low_gid
) == -1) {
203 DEBUG(0, ("Unable to initialise group hwm in idmap database\n"));
204 return NT_STATUS_INTERNAL_DB_ERROR
;
214 Initialise idmap alloc database.
216 static NTSTATUS
idmap_tdb2_alloc_init(const char *params
)
218 /* nothing to do - we want to avoid opening the permanent
219 database if possible. Instead we load the params when we
228 static NTSTATUS
idmap_tdb2_allocate_id(struct unixid
*xid
)
237 status
= idmap_tdb2_open_perm_db();
238 if (!NT_STATUS_IS_OK(status
)) {
242 /* Get current high water mark */
248 high_hwm
= idmap_tdb2_state
.high_uid
;
254 high_hwm
= idmap_tdb2_state
.high_gid
;
258 DEBUG(2, ("Invalid ID type (0x%x)\n", xid
->type
));
259 return NT_STATUS_INVALID_PARAMETER
;
262 if ((hwm
= dbwrap_fetch_int32(idmap_tdb2_perm
, hwmkey
)) == -1) {
263 return NT_STATUS_INTERNAL_DB_ERROR
;
266 /* check it is in the range */
267 if (hwm
> high_hwm
) {
268 DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
269 hwmtype
, (unsigned long)high_hwm
));
270 return NT_STATUS_UNSUCCESSFUL
;
273 /* fetch a new id and increment it */
274 ret
= dbwrap_change_uint32_atomic(idmap_tdb2_perm
, hwmkey
, &hwm
, 1);
276 DEBUG(1, ("Fatal error while fetching a new %s value\n!", hwmtype
));
277 return NT_STATUS_UNSUCCESSFUL
;
280 /* recheck it is in the range */
281 if (hwm
> high_hwm
) {
282 DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
283 hwmtype
, (unsigned long)high_hwm
));
284 return NT_STATUS_UNSUCCESSFUL
;
288 DEBUG(10,("New %s = %d\n", hwmtype
, hwm
));
294 Get current highest id.
296 static NTSTATUS
idmap_tdb2_get_hwm(struct unixid
*xid
)
304 status
= idmap_tdb2_open_perm_db();
305 if (!NT_STATUS_IS_OK(status
)) {
309 /* Get current high water mark */
315 high_hwm
= idmap_tdb2_state
.high_uid
;
321 high_hwm
= idmap_tdb2_state
.high_gid
;
325 return NT_STATUS_INVALID_PARAMETER
;
328 if ((hwm
= dbwrap_fetch_int32(idmap_tdb2_perm
, hwmkey
)) == -1) {
329 return NT_STATUS_INTERNAL_DB_ERROR
;
334 /* Warn if it is out of range */
335 if (hwm
>= high_hwm
) {
336 DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
337 hwmtype
, (unsigned long)high_hwm
));
346 static NTSTATUS
idmap_tdb2_set_hwm(struct unixid
*xid
)
348 /* not supported, or we would invalidate the cache tdb on
350 DEBUG(0,("idmap_tdb2_set_hwm not supported\n"));
351 return NT_STATUS_NOT_SUPPORTED
;
357 static NTSTATUS
idmap_tdb2_alloc_close(void)
359 /* don't actually close it */
364 IDMAP MAPPING TDB BACKEND
366 struct idmap_tdb2_context
{
367 uint32_t filter_low_id
;
368 uint32_t filter_high_id
;
372 try fetching from the cache tdb, and if that fails then
373 fetch from the permanent tdb
375 static TDB_DATA
tdb2_fetch_bystring(TALLOC_CTX
*mem_ctx
, const char *keystr
)
380 ret
= tdb_fetch_bystring(idmap_tdb2_tmp
, keystr
);
381 if (ret
.dptr
!= NULL
) {
382 /* got it from cache */
385 tmp
= (unsigned char *)talloc_memdup(mem_ctx
, ret
.dptr
,
390 if (ret
.dptr
== NULL
) {
391 return make_tdb_data(NULL
, 0);
396 status
= idmap_tdb2_open_perm_db();
397 if (!NT_STATUS_IS_OK(status
)) {
401 /* fetch from the permanent tdb */
402 return dbwrap_fetch_bystring(idmap_tdb2_perm
, mem_ctx
, keystr
);
406 store into both databases
408 static NTSTATUS
tdb2_store_bystring(const char *keystr
, TDB_DATA data
, int flags
)
411 NTSTATUS status
= idmap_tdb2_open_perm_db();
412 if (!NT_STATUS_IS_OK(status
)) {
413 return NT_STATUS_UNSUCCESSFUL
;
415 ret
= dbwrap_store_bystring(idmap_tdb2_perm
, keystr
, data
, flags
);
416 if (!NT_STATUS_IS_OK(ret
)) {
417 ret
= tdb_store_bystring(idmap_tdb2_tmp
, keystr
, data
, flags
) ? NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
423 delete from both databases
425 static NTSTATUS
tdb2_delete_bystring(const char *keystr
)
428 NTSTATUS status
= idmap_tdb2_open_perm_db();
429 if (!NT_STATUS_IS_OK(status
)) {
430 return NT_STATUS_UNSUCCESSFUL
;
432 ret
= dbwrap_delete_bystring(idmap_tdb2_perm
, keystr
);
433 if (!NT_STATUS_IS_OK(ret
)) {
434 ret
= tdb_delete_bystring(idmap_tdb2_tmp
, keystr
) ? NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
440 Initialise idmap database.
442 static NTSTATUS
idmap_tdb2_db_init(struct idmap_domain
*dom
)
445 struct idmap_tdb2_context
*ctx
;
446 char *config_option
= NULL
;
450 status
= idmap_tdb2_open_cache_db();
451 NT_STATUS_NOT_OK_RETURN(status
);
453 ctx
= talloc(dom
, struct idmap_tdb2_context
);
455 DEBUG(0, ("Out of memory!\n"));
456 return NT_STATUS_NO_MEMORY
;
459 config_option
= talloc_asprintf(ctx
, "idmap config %s", dom
->name
);
460 if ( ! config_option
) {
461 DEBUG(0, ("Out of memory!\n"));
462 ret
= NT_STATUS_NO_MEMORY
;
466 range
= lp_parm_const_string(-1, config_option
, "range", NULL
);
468 (sscanf(range
, "%u - %u", &ctx
->filter_low_id
, &ctx
->filter_high_id
) != 2) ||
469 (ctx
->filter_low_id
> ctx
->filter_high_id
)) {
470 ctx
->filter_low_id
= 0;
471 ctx
->filter_high_id
= 0;
474 dom
->private_data
= ctx
;
475 dom
->initialized
= True
;
477 talloc_free(config_option
);
487 run a script to perform a mapping
489 The script should the following command lines:
495 and should return one of the following as a single line of text
501 static NTSTATUS
idmap_tdb2_script(struct idmap_tdb2_context
*ctx
, struct id_map
*map
,
502 const char *fmt
, ...)
510 cmd
= talloc_asprintf(ctx
, "%s ", idmap_tdb2_state
.idmap_script
);
511 NT_STATUS_HAVE_NO_MEMORY(cmd
);
514 cmd
= talloc_vasprintf_append(cmd
, fmt
, ap
);
516 NT_STATUS_HAVE_NO_MEMORY(cmd
);
521 return NT_STATUS_NONE_MAPPED
;
524 if (fgets(line
, sizeof(line
)-1, p
) == NULL
) {
526 return NT_STATUS_NONE_MAPPED
;
530 DEBUG(10,("idmap script gave: %s\n", line
));
532 if (sscanf(line
, "UID:%lu", &v
) == 1) {
534 map
->xid
.type
= ID_TYPE_UID
;
535 } else if (sscanf(line
, "GID:%lu", &v
) == 1) {
537 map
->xid
.type
= ID_TYPE_GID
;
538 } else if (strncmp(line
, "SID:S-", 6) == 0) {
539 if (!string_to_sid(map
->sid
, &line
[4])) {
540 DEBUG(0,("Bad SID in '%s' from idmap script %s\n",
541 line
, idmap_tdb2_state
.idmap_script
));
542 return NT_STATUS_NONE_MAPPED
;
545 DEBUG(0,("Bad reply '%s' from idmap script %s\n",
546 line
, idmap_tdb2_state
.idmap_script
));
547 return NT_STATUS_NONE_MAPPED
;
556 Single id to sid lookup function.
558 static NTSTATUS
idmap_tdb2_id_to_sid(struct idmap_tdb2_context
*ctx
, struct id_map
*map
)
565 status
= idmap_tdb2_open_perm_db();
566 if (!NT_STATUS_IS_OK(status
)) {
571 return NT_STATUS_INVALID_PARAMETER
;
574 /* apply filters before checking */
575 if ((ctx
->filter_low_id
&& (map
->xid
.id
< ctx
->filter_low_id
)) ||
576 (ctx
->filter_high_id
&& (map
->xid
.id
> ctx
->filter_high_id
))) {
577 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
578 map
->xid
.id
, ctx
->filter_low_id
, ctx
->filter_high_id
));
579 return NT_STATUS_NONE_MAPPED
;
582 switch (map
->xid
.type
) {
585 keystr
= talloc_asprintf(ctx
, "UID %lu", (unsigned long)map
->xid
.id
);
589 keystr
= talloc_asprintf(ctx
, "GID %lu", (unsigned long)map
->xid
.id
);
593 DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map
->xid
.type
));
594 return NT_STATUS_INVALID_PARAMETER
;
597 /* final SAFE_FREE safe */
600 if (keystr
== NULL
) {
601 DEBUG(0, ("Out of memory!\n"));
602 ret
= NT_STATUS_NO_MEMORY
;
606 DEBUG(10,("Fetching record %s\n", keystr
));
608 /* Check if the mapping exists */
609 data
= tdb2_fetch_bystring(keystr
, keystr
);
614 DEBUG(10,("Record %s not found\n", keystr
));
615 if (idmap_tdb2_state
.idmap_script
== NULL
) {
616 ret
= NT_STATUS_NONE_MAPPED
;
620 ret
= idmap_tdb2_script(ctx
, map
, "IDTOSID %s", keystr
);
622 /* store it on shared storage */
623 if (!NT_STATUS_IS_OK(ret
)) {
627 if (sid_to_fstring(sidstr
, map
->sid
)) {
628 /* both forward and reverse mappings */
629 tdb2_store_bystring(keystr
,
630 string_term_tdb_data(sidstr
),
632 tdb2_store_bystring(sidstr
,
633 string_term_tdb_data(keystr
),
639 if (!string_to_sid(map
->sid
, (const char *)data
.dptr
)) {
640 DEBUG(10,("INVALID SID (%s) in record %s\n",
641 (const char *)data
.dptr
, keystr
));
642 ret
= NT_STATUS_INTERNAL_DB_ERROR
;
646 DEBUG(10,("Found record %s -> %s\n", keystr
, (const char *)data
.dptr
));
656 Single sid to id lookup function.
658 static NTSTATUS
idmap_tdb2_sid_to_id(struct idmap_tdb2_context
*ctx
, struct id_map
*map
)
663 unsigned long rec_id
= 0;
666 status
= idmap_tdb2_open_perm_db();
667 if (!NT_STATUS_IS_OK(status
)) {
671 if ((keystr
= sid_string_talloc(ctx
, map
->sid
)) == NULL
) {
672 DEBUG(0, ("Out of memory!\n"));
673 ret
= NT_STATUS_NO_MEMORY
;
677 DEBUG(10,("Fetching record %s\n", keystr
));
679 /* Check if sid is present in database */
680 data
= tdb2_fetch_bystring(keystr
, keystr
);
684 DEBUG(10,(__location__
" Record %s not found\n", keystr
));
686 if (idmap_tdb2_state
.idmap_script
== NULL
) {
687 ret
= NT_STATUS_NONE_MAPPED
;
691 ret
= idmap_tdb2_script(ctx
, map
, "SIDTOID %s", keystr
);
692 /* store it on shared storage */
693 if (!NT_STATUS_IS_OK(ret
)) {
697 snprintf(idstr
, sizeof(idstr
), "%cID %lu",
698 map
->xid
.type
== ID_TYPE_UID
?'U':'G',
699 (unsigned long)map
->xid
.id
);
700 /* store both forward and reverse mappings */
701 tdb2_store_bystring(keystr
, string_term_tdb_data(idstr
),
703 tdb2_store_bystring(idstr
, string_term_tdb_data(keystr
),
708 /* What type of record is this ? */
709 if (sscanf((const char *)data
.dptr
, "UID %lu", &rec_id
) == 1) { /* Try a UID record. */
710 map
->xid
.id
= rec_id
;
711 map
->xid
.type
= ID_TYPE_UID
;
712 DEBUG(10,("Found uid record %s -> %s \n", keystr
, (const char *)data
.dptr
));
715 } else if (sscanf((const char *)data
.dptr
, "GID %lu", &rec_id
) == 1) { /* Try a GID record. */
716 map
->xid
.id
= rec_id
;
717 map
->xid
.type
= ID_TYPE_GID
;
718 DEBUG(10,("Found gid record %s -> %s \n", keystr
, (const char *)data
.dptr
));
721 } else { /* Unknown record type ! */
722 DEBUG(2, ("Found INVALID record %s -> %s\n", keystr
, (const char *)data
.dptr
));
723 ret
= NT_STATUS_INTERNAL_DB_ERROR
;
726 /* apply filters before returning result */
727 if ((ctx
->filter_low_id
&& (map
->xid
.id
< ctx
->filter_low_id
)) ||
728 (ctx
->filter_high_id
&& (map
->xid
.id
> ctx
->filter_high_id
))) {
729 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
730 map
->xid
.id
, ctx
->filter_low_id
, ctx
->filter_high_id
));
731 ret
= NT_STATUS_NONE_MAPPED
;
740 lookup a set of unix ids.
742 static NTSTATUS
idmap_tdb2_unixids_to_sids(struct idmap_domain
*dom
, struct id_map
**ids
)
744 struct idmap_tdb2_context
*ctx
;
748 /* make sure we initialized */
749 if ( ! dom
->initialized
) {
750 ret
= idmap_tdb2_db_init(dom
);
751 if ( ! NT_STATUS_IS_OK(ret
)) {
756 ctx
= talloc_get_type(dom
->private_data
, struct idmap_tdb2_context
);
758 for (i
= 0; ids
[i
]; i
++) {
759 ret
= idmap_tdb2_id_to_sid(ctx
, ids
[i
]);
760 if ( ! NT_STATUS_IS_OK(ret
)) {
762 /* if it is just a failed mapping continue */
763 if (NT_STATUS_EQUAL(ret
, NT_STATUS_NONE_MAPPED
)) {
765 /* make sure it is marked as unmapped */
766 ids
[i
]->status
= ID_UNMAPPED
;
770 /* some fatal error occurred, return immediately */
774 /* all ok, id is mapped */
775 ids
[i
]->status
= ID_MAPPED
;
785 lookup a set of sids.
787 static NTSTATUS
idmap_tdb2_sids_to_unixids(struct idmap_domain
*dom
, struct id_map
**ids
)
789 struct idmap_tdb2_context
*ctx
;
793 /* make sure we initialized */
794 if ( ! dom
->initialized
) {
795 ret
= idmap_tdb2_db_init(dom
);
796 if ( ! NT_STATUS_IS_OK(ret
)) {
801 ctx
= talloc_get_type(dom
->private_data
, struct idmap_tdb2_context
);
803 for (i
= 0; ids
[i
]; i
++) {
804 ret
= idmap_tdb2_sid_to_id(ctx
, ids
[i
]);
805 if ( ! NT_STATUS_IS_OK(ret
)) {
807 /* if it is just a failed mapping continue */
808 if (NT_STATUS_EQUAL(ret
, NT_STATUS_NONE_MAPPED
)) {
810 /* make sure it is marked as unmapped */
811 ids
[i
]->status
= ID_UNMAPPED
;
815 /* some fatal error occurred, return immediately */
819 /* all ok, id is mapped */
820 ids
[i
]->status
= ID_MAPPED
;
833 static NTSTATUS
idmap_tdb2_set_mapping(struct idmap_domain
*dom
, const struct id_map
*map
)
835 struct idmap_tdb2_context
*ctx
;
838 char *ksidstr
, *kidstr
;
839 struct db_record
*update_lock
= NULL
;
840 struct db_record
*rec
= NULL
;
842 /* make sure we initialized */
843 if ( ! dom
->initialized
) {
844 ret
= idmap_tdb2_db_init(dom
);
845 if ( ! NT_STATUS_IS_OK(ret
)) {
850 if (!map
|| !map
->sid
) {
851 return NT_STATUS_INVALID_PARAMETER
;
854 ksidstr
= kidstr
= NULL
;
857 /* TODO: should we filter a set_mapping using low/high filters ? */
859 ctx
= talloc_get_type(dom
->private_data
, struct idmap_tdb2_context
);
861 switch (map
->xid
.type
) {
864 kidstr
= talloc_asprintf(ctx
, "UID %lu", (unsigned long)map
->xid
.id
);
868 kidstr
= talloc_asprintf(ctx
, "GID %lu", (unsigned long)map
->xid
.id
);
872 DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map
->xid
.type
));
873 return NT_STATUS_INVALID_PARAMETER
;
876 if (kidstr
== NULL
) {
877 DEBUG(0, ("ERROR: Out of memory!\n"));
878 ret
= NT_STATUS_NO_MEMORY
;
882 if (!(ksidstr
= sid_string_talloc(ctx
, map
->sid
))) {
883 DEBUG(0, ("Out of memory!\n"));
884 ret
= NT_STATUS_NO_MEMORY
;
888 DEBUG(10, ("Storing %s <-> %s map\n", ksidstr
, kidstr
));
891 * Get us the update lock. This is necessary to get the lock orders
892 * right, we need to deal with two records under a lock.
895 if (!(update_lock
= idmap_tdb2_perm
->fetch_locked(
896 idmap_tdb2_perm
, ctx
,
897 string_term_tdb_data("UPDATELOCK")))) {
898 DEBUG(10,("Failed to lock record %s\n", ksidstr
));
899 ret
= NT_STATUS_UNSUCCESSFUL
;
904 * *DELETE* previous mappings if any. *
907 /* First delete indexed on SID */
909 if (((rec
= idmap_tdb2_perm
->fetch_locked(
910 idmap_tdb2_perm
, update_lock
,
911 string_term_tdb_data(ksidstr
))) != NULL
)
912 && (rec
->value
.dsize
!= 0)) {
913 struct db_record
*rec2
;
915 if ((rec2
= idmap_tdb2_perm
->fetch_locked(
916 idmap_tdb2_perm
, update_lock
, rec
->value
))
918 rec2
->delete_rec(rec2
);
922 rec
->delete_rec(rec
);
924 tdb_delete(idmap_tdb2_tmp
, rec
->key
);
925 tdb_delete(idmap_tdb2_tmp
, rec
->value
);
929 /* Now delete indexed on unix ID */
931 if (((rec
= idmap_tdb2_perm
->fetch_locked(
932 idmap_tdb2_perm
, update_lock
,
933 string_term_tdb_data(kidstr
))) != NULL
)
934 && (rec
->value
.dsize
!= 0)) {
935 struct db_record
*rec2
;
937 if ((rec2
= idmap_tdb2_perm
->fetch_locked(
938 idmap_tdb2_perm
, update_lock
, rec
->value
))
940 rec2
->delete_rec(rec2
);
944 rec
->delete_rec(rec
);
946 tdb_delete(idmap_tdb2_tmp
, rec
->key
);
947 tdb_delete(idmap_tdb2_tmp
, rec
->value
);
951 if (!NT_STATUS_IS_OK(tdb2_store_bystring(ksidstr
, string_term_tdb_data(kidstr
),
953 DEBUG(0, ("Error storing SID -> ID\n"));
954 ret
= NT_STATUS_UNSUCCESSFUL
;
957 if (!NT_STATUS_IS_OK(tdb2_store_bystring(kidstr
, string_term_tdb_data(ksidstr
),
959 DEBUG(0, ("Error storing ID -> SID\n"));
960 /* try to remove the previous stored SID -> ID map */
961 tdb2_delete_bystring(ksidstr
);
962 ret
= NT_STATUS_UNSUCCESSFUL
;
966 DEBUG(10,("Stored %s <-> %s\n", ksidstr
, kidstr
));
970 talloc_free(ksidstr
);
972 SAFE_FREE(data
.dptr
);
973 TALLOC_FREE(update_lock
);
980 static NTSTATUS
idmap_tdb2_remove_mapping(struct idmap_domain
*dom
, const struct id_map
*map
)
982 /* not supported as it would invalidate the cache tdb on other
984 DEBUG(0,("idmap_tdb2_remove_mapping not supported\n"));
985 return NT_STATUS_NOT_SUPPORTED
;
989 Close the idmap tdb instance
991 static NTSTATUS
idmap_tdb2_close(struct idmap_domain
*dom
)
993 /* don't do anything */
999 Dump all mappings out
1001 static NTSTATUS
idmap_tdb2_dump_data(struct idmap_domain
*dom
, struct id_map
**maps
, int *num_maps
)
1003 DEBUG(0,("idmap_tdb2_dump_data not supported\n"));
1004 return NT_STATUS_NOT_SUPPORTED
;
1007 static struct idmap_methods db_methods
= {
1008 .init
= idmap_tdb2_db_init
,
1009 .unixids_to_sids
= idmap_tdb2_unixids_to_sids
,
1010 .sids_to_unixids
= idmap_tdb2_sids_to_unixids
,
1011 .set_mapping
= idmap_tdb2_set_mapping
,
1012 .remove_mapping
= idmap_tdb2_remove_mapping
,
1013 .dump_data
= idmap_tdb2_dump_data
,
1014 .close_fn
= idmap_tdb2_close
1017 static struct idmap_alloc_methods db_alloc_methods
= {
1018 .init
= idmap_tdb2_alloc_init
,
1019 .allocate_id
= idmap_tdb2_allocate_id
,
1020 .get_id_hwm
= idmap_tdb2_get_hwm
,
1021 .set_id_hwm
= idmap_tdb2_set_hwm
,
1022 .close_fn
= idmap_tdb2_alloc_close
1025 NTSTATUS
idmap_tdb2_init(void)
1029 /* register both backends */
1030 ret
= smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION
, "tdb2", &db_alloc_methods
);
1031 if (! NT_STATUS_IS_OK(ret
)) {
1032 DEBUG(0, ("Unable to register idmap alloc tdb2 module: %s\n", get_friendly_nt_error_msg(ret
)));
1036 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION
, "tdb2", &db_methods
);