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"
27 static struct db_context
*connections_db_ctx(bool rw
)
29 static struct db_context
*db_ctx
;
36 open_flags
= rw
? (O_RDWR
|O_CREAT
) : O_RDONLY
;
38 db_ctx
= db_open(NULL
, lock_path("connections.tdb"), 0,
39 TDB_CLEAR_IF_FIRST
|TDB_INCOMPATIBLE_HASH
|TDB_DEFAULT
,
40 open_flags
, 0644, DBWRAP_LOCK_ORDER_1
);
44 static struct db_record
*connections_fetch_record(TALLOC_CTX
*mem_ctx
,
47 struct db_context
*ctx
= connections_db_ctx(True
);
53 return dbwrap_fetch_locked(ctx
, mem_ctx
, key
);
56 struct db_record
*connections_fetch_entry(TALLOC_CTX
*mem_ctx
,
57 connection_struct
*conn
,
60 struct connections_key ckey
;
64 ckey
.pid
= messaging_server_id(conn
->sconn
->msg_ctx
);
65 ckey
.cnum
= conn
->cnum
;
66 strlcpy(ckey
.name
, name
, sizeof(ckey
.name
));
68 key
.dsize
= sizeof(ckey
);
69 key
.dptr
= (uint8
*)&ckey
;
71 return connections_fetch_record(mem_ctx
, key
);
74 struct conn_traverse_state
{
75 int (*fn
)(struct db_record
*rec
,
76 const struct connections_key
*key
,
77 const struct connections_data
*data
,
82 static int conn_traverse_fn(struct db_record
*rec
, void *private_data
)
86 struct conn_traverse_state
*state
=
87 (struct conn_traverse_state
*)private_data
;
89 key
= dbwrap_record_get_key(rec
);
90 value
= dbwrap_record_get_value(rec
);
92 if ((key
.dsize
!= sizeof(struct connections_key
))
93 || (value
.dsize
!= sizeof(struct connections_data
))) {
97 return state
->fn(rec
, (const struct connections_key
*)key
.dptr
,
98 (const struct connections_data
*)value
.dptr
,
102 int connections_traverse(int (*fn
)(struct db_record
*rec
,
108 struct db_context
*ctx
= connections_db_ctx(False
);
114 status
= dbwrap_traverse(ctx
, fn
, private_data
, &count
);
115 if (!NT_STATUS_IS_OK(status
)) {
122 int connections_forall(int (*fn
)(struct db_record
*rec
,
123 const struct connections_key
*key
,
124 const struct connections_data
*data
,
128 struct db_context
*ctx
;
129 struct conn_traverse_state state
;
133 ctx
= connections_db_ctx(true);
139 state
.private_data
= private_data
;
141 status
= dbwrap_traverse(ctx
, conn_traverse_fn
, (void *)&state
, &count
);
142 if (!NT_STATUS_IS_OK(status
)) {
149 struct conn_traverse_read_state
{
150 int (*fn
)(const struct connections_key
*key
,
151 const struct connections_data
*data
,
156 static int connections_forall_read_fn(struct db_record
*rec
,
161 struct conn_traverse_read_state
*state
=
162 (struct conn_traverse_read_state
*)private_data
;
164 key
= dbwrap_record_get_key(rec
);
165 value
= dbwrap_record_get_value(rec
);
167 if ((key
.dsize
!= sizeof(struct connections_key
))
168 || (value
.dsize
!= sizeof(struct connections_data
))) {
171 return state
->fn((const struct connections_key
*)key
.dptr
,
172 (const struct connections_data
*)value
.dptr
,
173 state
->private_data
);
176 int connections_forall_read(int (*fn
)(const struct connections_key
*key
,
177 const struct connections_data
*data
,
181 struct db_context
*ctx
;
182 struct conn_traverse_read_state state
;
186 ctx
= connections_db_ctx(false);
192 state
.private_data
= private_data
;
194 status
= dbwrap_traverse_read(ctx
, connections_forall_read_fn
,
195 (void *)&state
, &count
);
197 if (!NT_STATUS_IS_OK(status
)) {
204 bool connections_init(bool rw
)
206 return (connections_db_ctx(rw
) != NULL
);