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/* The interface definition for (file) crypto providers.
*
* This is just an abstract driver interface, which needs to be
* implemented by concrete classes.
*
* Copyright 2013 Adiscon GmbH.
*
* This file is part of the rsyslog runtime library.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDED_CRYPROV_H
#define INCLUDED_CRYPROV_H
/* we unfortunately need to have two different param names depending on the
* context in which parameters are set. Other than (re/over)engineering the core
* interface, we just define some values to keep track of that.
*/
#define CRYPROV_PARAMTYPE_REGULAR 0
#define CRYPROV_PARAMTYPE_DISK 1
/* interface */
BEGINinterface(cryprov) /* name must also be changed in ENDinterface macro! */
rsRetVal (*Construct)(void *ppThis);
rsRetVal (*SetCnfParam)(void *ppThis, struct nvlst *lst, int paramType);
rsRetVal (*Destruct)(void *ppThis);
rsRetVal (*OnFileOpen)(void *pThis, uchar *fn, void *pFileInstData, char openMode);
rsRetVal (*Encrypt)(void *pFileInstData, uchar *buf, size_t *lenBuf);
rsRetVal (*Decrypt)(void *pFileInstData, uchar *buf, size_t *lenBuf);
rsRetVal (*OnFileClose)(void *pFileInstData, off64_t offsLogfile);
rsRetVal (*DeleteStateFiles)(uchar *logfn);
rsRetVal (*GetBytesLeftInBlock)(void *pFileInstData, ssize_t *left);
void (*SetDeleteOnClose)(void *pFileInstData, int val);
ENDinterface(cryprov)
#define cryprovCURR_IF_VERSION 3 /* increment whenever you change the interface structure! */
#endif /* #ifndef INCLUDED_CRYPROV_H */
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