2 Unix SMB/CIFS implementation.
3 Database interface wrapper
4 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
6 Major code contributions from Aleksey Fedoseev (fedoseev@ru.ibm.com)
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * Fall back using fetch_locked if no genuine fetch operation is provided
28 static int dbwrap_fallback_fetch(struct db_context
*db
, TALLOC_CTX
*mem_ctx
,
29 TDB_DATA key
, TDB_DATA
*data
)
31 struct db_record
*rec
;
33 if (!(rec
= db
->fetch_locked(db
, mem_ctx
, key
))) {
37 data
->dsize
= rec
->value
.dsize
;
38 data
->dptr
= talloc_move(mem_ctx
, &rec
->value
.dptr
);
43 struct db_context
*db_open(TALLOC_CTX
*mem_ctx
,
45 int hash_size
, int tdb_flags
,
46 int open_flags
, mode_t mode
)
48 struct db_context
*result
= NULL
;
50 #ifdef CLUSTER_SUPPORT
52 if (lp_clustering()) {
54 /* ctdb only wants the file part of the name */
55 partname
= strrchr(name
, '/');
61 /* allow ctdb for individual databases to be disabled */
62 if (lp_parm_bool(-1, "ctdb", partname
, True
)) {
63 result
= db_open_ctdb(mem_ctx
, partname
, hash_size
,
64 tdb_flags
, open_flags
, mode
);
66 DEBUG(0,("failed to attach to ctdb %s\n",
68 smb_panic("failed to attach to a ctdb "
77 result
= db_open_tdb(mem_ctx
, name
, hash_size
,
78 tdb_flags
, open_flags
, mode
);
81 if ((result
!= NULL
) && (result
->fetch
== NULL
)) {
82 result
->fetch
= dbwrap_fallback_fetch
;
88 NTSTATUS
dbwrap_delete_bystring(struct db_context
*db
, const char *key
)
90 struct db_record
*rec
;
93 rec
= db
->fetch_locked(db
, talloc_tos(), string_term_tdb_data(key
));
95 return NT_STATUS_NO_MEMORY
;
97 status
= rec
->delete_rec(rec
);
102 NTSTATUS
dbwrap_store_bystring(struct db_context
*db
, const char *key
,
103 TDB_DATA data
, int flags
)
105 struct db_record
*rec
;
108 rec
= db
->fetch_locked(db
, talloc_tos(), string_term_tdb_data(key
));
110 return NT_STATUS_NO_MEMORY
;
113 status
= rec
->store(rec
, data
, flags
);
118 TDB_DATA
dbwrap_fetch_bystring(struct db_context
*db
, TALLOC_CTX
*mem_ctx
,
123 if (db
->fetch(db
, mem_ctx
, string_term_tdb_data(key
), &result
) == -1) {
124 return make_tdb_data(NULL
, 0);