2
* Unix SMB/CIFS implementation.
4
* A general tdb content validation mechanism
6
* Copyright (C) Michael Adam 2007
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/>.
22
#ifndef __TDB_VALIDATE_H__
23
#define __TDB_VALIDATE_H__
25
#include "lib/replace/replace.h"
29
* Flag field for keeping track of the status of a validation.
31
struct tdb_validation_status {
40
* Callback function type for the validation mechanism.
42
typedef int (*tdb_validate_data_func)(TDB_CONTEXT *the_tdb, TDB_DATA kbuf,
43
TDB_DATA dbuf, void *state);
46
* tdb validation function.
47
* returns 0 if tdb is ok, != 0 if it isn't.
48
* this function expects an opened tdb.
50
int tdb_validate(struct tdb_context *tdb,
51
tdb_validate_data_func validate_fn);
54
* tdb validation function.
55
* returns 0 if tdb is ok, != 0 if it isn't.
56
* This is a wrapper around the actual validation function that
57
* opens and closes the tdb.
59
int tdb_validate_open(const char *tdb_path,
60
tdb_validate_data_func validate_fn);
63
* validation function with backup handling:
65
* - calls tdb_validate
66
* - if the tdb is ok, create a backup "name.bak", possibly moving
67
* existing backup to name.bak.old,
68
* return 0 (success) even if the backup fails
69
* - if the tdb is corrupt:
70
* - move the tdb to "name.corrupt"
71
* - check if there is valid backup.
72
* if so, restore the backup.
73
* if restore is successful, return 0 (success),
74
* - otherwise return -1 (failure)
76
int tdb_validate_and_backup(const char *tdb_path,
77
tdb_validate_data_func validate_fn);
79
#endif /* __TDB_VALIDATE_H__ */