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/*
Unix SMB/CIFS implementation.
tdb utility functions
Copyright (C) Andrew Tridgell 1999
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TDBUTIL_H__
#define __TDBUTIL_H__
#include "tdb.h"
#include "talloc.h" /* for tdb_wrap_open() */
#include "nt_status.h" /* for map_nt_error_from_tdb() */
/* single node of a list returned by tdb_search_keys */
typedef struct keys_node
{
struct keys_node *prev, *next;
TDB_DATA node_key;
} TDB_LIST_NODE;
struct tdb_wrap {
struct tdb_context *tdb;
const char *name;
struct tdb_wrap *next, *prev;
};
struct tdb_validation_status {
bool tdb_error;
bool bad_freelist;
bool bad_entry;
bool unknown_key;
bool success;
};
typedef int (*tdb_validate_data_func)(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state);
TDB_DATA make_tdb_data(const uint8 *dptr, size_t dsize);
TDB_DATA string_tdb_data(const char *string);
TDB_DATA string_term_tdb_data(const char *string);
TDB_LIST_NODE *tdb_search_keys(struct tdb_context*, const char*);
void tdb_search_list_free(TDB_LIST_NODE*);
int tdb_chainlock_with_timeout( TDB_CONTEXT *tdb, TDB_DATA key,
unsigned int timeout);
int tdb_lock_bystring(struct tdb_context *tdb, const char *keyval);
int tdb_lock_bystring_with_timeout(TDB_CONTEXT *tdb, const char *keyval,
int timeout);
void tdb_unlock_bystring(struct tdb_context *tdb, const char *keyval);
int tdb_read_lock_bystring_with_timeout(TDB_CONTEXT *tdb, const char *keyval,
unsigned int timeout);
void tdb_read_unlock_bystring(TDB_CONTEXT *tdb, const char *keyval);
int32 tdb_fetch_int32_byblob(TDB_CONTEXT *tdb, TDB_DATA key);
int32 tdb_fetch_int32(struct tdb_context *tdb, const char *keystr);
bool tdb_store_uint32_byblob(TDB_CONTEXT *tdb, TDB_DATA key, uint32 value);
bool tdb_store_uint32(struct tdb_context *tdb, const char *keystr, uint32 value);
int tdb_store_int32_byblob(TDB_CONTEXT *tdb, TDB_DATA key, int32 v);
int tdb_store_int32(struct tdb_context *tdb, const char *keystr, int32 v);
bool tdb_fetch_uint32_byblob(TDB_CONTEXT *tdb, TDB_DATA key, uint32 *value);
bool tdb_fetch_uint32(struct tdb_context *tdb, const char *keystr, uint32 *value);
int32 tdb_change_int32_atomic(struct tdb_context *tdb, const char *keystr, int32 *oldval, int32 change_val);
bool tdb_change_uint32_atomic(TDB_CONTEXT *tdb, const char *keystr,
uint32 *oldval, uint32 change_val);
int tdb_store_bystring(struct tdb_context *tdb, const char *keystr, TDB_DATA data, int flags);
int tdb_trans_store_bystring(TDB_CONTEXT *tdb, const char *keystr,
TDB_DATA data, int flags);
TDB_DATA tdb_fetch_bystring(struct tdb_context *tdb, const char *keystr);
int tdb_delete_bystring(struct tdb_context *tdb, const char *keystr);
int tdb_trans_store(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
int flag);
int tdb_trans_delete(struct tdb_context *tdb, TDB_DATA key);
int tdb_unpack(const uint8 *buf, int bufsize, const char *fmt, ...);
size_t tdb_pack(uint8 *buf, int bufsize, const char *fmt, ...);
bool tdb_pack_append(TALLOC_CTX *mem_ctx, uint8 **buf, size_t *len,
const char *fmt, ...);
struct tdb_context *tdb_open_log(const char *name, int hash_size,
int tdb_flags, int open_flags, mode_t mode);
struct tdb_wrap *tdb_wrap_open(TALLOC_CTX *mem_ctx,
const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode);
NTSTATUS map_nt_error_from_tdb(enum TDB_ERROR err);
int tdb_validate(struct tdb_context *tdb, tdb_validate_data_func validate_fn);
int tdb_validate_open(const char *tdb_path, tdb_validate_data_func validate_fn);
int tdb_validate_and_backup(const char *tdb_path,
tdb_validate_data_func validate_fn);
#endif /* __TDBUTIL_H__ */
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