2 Unix SMB/CIFS implementation.
3 Low-level sessionid.tdb access functions
4 Copyright (C) Volker Lendecke 2010
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "system/filesys.h"
22 #include "dbwrap/dbwrap.h"
23 #include "dbwrap/dbwrap_open.h"
27 static struct db_context
*session_db_ctx(void)
29 static struct db_context
*session_db_ctx_ptr
;
31 if (session_db_ctx_ptr
!= NULL
) {
32 return session_db_ctx_ptr
;
35 session_db_ctx_ptr
= db_open(NULL
, lock_path("sessionid.tdb"), 0,
36 TDB_CLEAR_IF_FIRST
|TDB_DEFAULT
|TDB_INCOMPATIBLE_HASH
,
37 O_RDWR
| O_CREAT
, 0644);
38 return session_db_ctx_ptr
;
41 bool sessionid_init(void)
43 if (session_db_ctx() == NULL
) {
44 DEBUG(1,("session_init: failed to open sessionid tdb\n"));
51 struct db_record
*sessionid_fetch_record(TALLOC_CTX
*mem_ctx
, const char *key
)
53 struct db_context
*db
;
55 db
= session_db_ctx();
59 return db
->fetch_locked(db
, mem_ctx
, string_term_tdb_data(key
));
62 struct sessionid_traverse_state
{
63 int (*fn
)(struct db_record
*rec
, const char *key
,
64 struct sessionid
*session
, void *private_data
);
68 static int sessionid_traverse_fn(struct db_record
*rec
, void *private_data
)
70 struct sessionid_traverse_state
*state
=
71 (struct sessionid_traverse_state
*)private_data
;
72 struct sessionid session
;
74 if ((rec
->key
.dptr
[rec
->key
.dsize
-1] != '\0')
75 || (rec
->value
.dsize
!= sizeof(struct sessionid
))) {
76 DEBUG(1, ("Found invalid record in sessionid.tdb\n"));
80 memcpy(&session
, rec
->value
.dptr
, sizeof(session
));
82 return state
->fn(rec
, (char *)rec
->key
.dptr
, &session
,
86 int sessionid_traverse(int (*fn
)(struct db_record
*rec
, const char *key
,
87 struct sessionid
*session
,
91 struct db_context
*db
;
92 struct sessionid_traverse_state state
;
94 db
= session_db_ctx();
99 state
.private_data
= private_data
;
100 return db
->traverse(db
, sessionid_traverse_fn
, &state
);
103 struct sessionid_traverse_read_state
{
104 int (*fn
)(const char *key
, struct sessionid
*session
,
109 static int sessionid_traverse_read_fn(struct db_record
*rec
,
112 struct sessionid_traverse_read_state
*state
=
113 (struct sessionid_traverse_read_state
*)private_data
;
114 struct sessionid session
;
116 if ((rec
->key
.dptr
[rec
->key
.dsize
-1] != '\0')
117 || (rec
->value
.dsize
!= sizeof(struct sessionid
))) {
118 DEBUG(1, ("Found invalid record in sessionid.tdb\n"));
122 memcpy(&session
, rec
->value
.dptr
, sizeof(session
));
124 return state
->fn((char *)rec
->key
.dptr
, &session
,
125 state
->private_data
);
128 int sessionid_traverse_read(int (*fn
)(const char *key
,
129 struct sessionid
*session
,
133 struct db_context
*db
;
134 struct sessionid_traverse_read_state state
;
136 db
= session_db_ctx();
141 state
.private_data
= private_data
;
142 return db
->traverse(db
, sessionid_traverse_read_fn
, &state
);