2 Unix SMB/CIFS implementation.
3 Low-level connections.tdb access functions
4 Copyright (C) Volker Lendecke 2007
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 "smbd/globals.h"
23 #include "dbwrap/dbwrap.h"
24 #include "dbwrap/dbwrap_open.h"
26 static struct db_context
*connections_db_ctx(bool rw
)
28 static struct db_context
*db_ctx
;
35 open_flags
= rw
? (O_RDWR
|O_CREAT
) : O_RDONLY
;
37 db_ctx
= db_open(NULL
, lock_path("connections.tdb"), 0,
38 TDB_CLEAR_IF_FIRST
|TDB_INCOMPATIBLE_HASH
|TDB_DEFAULT
, open_flags
, 0644);
42 static struct db_record
*connections_fetch_record(TALLOC_CTX
*mem_ctx
,
45 struct db_context
*ctx
= connections_db_ctx(True
);
51 return ctx
->fetch_locked(ctx
, mem_ctx
, key
);
54 struct db_record
*connections_fetch_entry(TALLOC_CTX
*mem_ctx
,
55 connection_struct
*conn
,
58 struct connections_key ckey
;
62 ckey
.pid
= sconn_server_id(conn
->sconn
);
63 ckey
.cnum
= conn
->cnum
;
64 strlcpy(ckey
.name
, name
, sizeof(ckey
.name
));
66 key
.dsize
= sizeof(ckey
);
67 key
.dptr
= (uint8
*)&ckey
;
69 return connections_fetch_record(mem_ctx
, key
);
72 struct conn_traverse_state
{
73 int (*fn
)(struct db_record
*rec
,
74 const struct connections_key
*key
,
75 const struct connections_data
*data
,
80 static int conn_traverse_fn(struct db_record
*rec
, void *private_data
)
82 struct conn_traverse_state
*state
=
83 (struct conn_traverse_state
*)private_data
;
85 if ((rec
->key
.dsize
!= sizeof(struct connections_key
))
86 || (rec
->value
.dsize
!= sizeof(struct connections_data
))) {
90 return state
->fn(rec
, (const struct connections_key
*)rec
->key
.dptr
,
91 (const struct connections_data
*)rec
->value
.dptr
,
95 int connections_traverse(int (*fn
)(struct db_record
*rec
,
99 struct db_context
*ctx
= connections_db_ctx(False
);
105 return ctx
->traverse(ctx
, fn
, private_data
);
108 int connections_forall(int (*fn
)(struct db_record
*rec
,
109 const struct connections_key
*key
,
110 const struct connections_data
*data
,
114 struct db_context
*ctx
;
115 struct conn_traverse_state state
;
117 ctx
= connections_db_ctx(true);
123 state
.private_data
= private_data
;
125 return ctx
->traverse(ctx
, conn_traverse_fn
, (void *)&state
);
128 struct conn_traverse_read_state
{
129 int (*fn
)(const struct connections_key
*key
,
130 const struct connections_data
*data
,
135 static int connections_forall_read_fn(struct db_record
*rec
,
138 struct conn_traverse_read_state
*state
=
139 (struct conn_traverse_read_state
*)private_data
;
141 if ((rec
->key
.dsize
!= sizeof(struct connections_key
))
142 || (rec
->value
.dsize
!= sizeof(struct connections_data
))) {
145 return state
->fn((const struct connections_key
*)rec
->key
.dptr
,
146 (const struct connections_data
*)rec
->value
.dptr
,
147 state
->private_data
);
150 int connections_forall_read(int (*fn
)(const struct connections_key
*key
,
151 const struct connections_data
*data
,
155 struct db_context
*ctx
;
156 struct conn_traverse_read_state state
;
158 ctx
= connections_db_ctx(false);
164 state
.private_data
= private_data
;
166 return ctx
->traverse_read(ctx
, connections_forall_read_fn
,
170 bool connections_init(bool rw
)
172 return (connections_db_ctx(rw
) != NULL
);