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0e4c358e27
We change all the headers and wscript files to use tdb_compat; this means we have one place to decide whether to use TDB1 or TDB2. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* Unix SMB/CIFS implementation.
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*
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* A general tdb content validation mechanism
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*
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* Copyright (C) Michael Adam 2007
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __TDB_VALIDATE_H__
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#define __TDB_VALIDATE_H__
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#include "lib/replace/replace.h"
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#include "tdb_compat.h"
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/**
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* Flag field for keeping track of the status of a validation.
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*/
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struct tdb_validation_status {
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bool tdb_error;
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bool bad_freelist;
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bool bad_entry;
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bool unknown_key;
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bool success;
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};
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/**
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* Callback function type for the validation mechanism.
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*/
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typedef int (*tdb_validate_data_func)(TDB_CONTEXT *the_tdb, TDB_DATA kbuf,
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TDB_DATA dbuf, void *state);
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/**
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* tdb validation function.
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* returns 0 if tdb is ok, != 0 if it isn't.
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* this function expects an opened tdb.
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*/
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int tdb_validate(struct tdb_context *tdb,
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tdb_validate_data_func validate_fn);
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/**
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* tdb validation function.
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* returns 0 if tdb is ok, != 0 if it isn't.
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* This is a wrapper around the actual validation function that
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* opens and closes the tdb.
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*/
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int tdb_validate_open(const char *tdb_path,
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tdb_validate_data_func validate_fn);
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/**
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* validation function with backup handling:
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*
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* - calls tdb_validate
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* - if the tdb is ok, create a backup "name.bak", possibly moving
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* existing backup to name.bak.old,
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* return 0 (success) even if the backup fails
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* - if the tdb is corrupt:
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* - move the tdb to "name.corrupt"
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* - check if there is valid backup.
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* if so, restore the backup.
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* if restore is successful, return 0 (success),
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* - otherwise return -1 (failure)
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*/
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int tdb_validate_and_backup(const char *tdb_path,
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tdb_validate_data_func validate_fn);
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#endif /* __TDB_VALIDATE_H__ */
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