/*-------------------------------------------------------------------------
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 * 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.
 *
 * bufenc.h
 *
 * src/include/crypto/bufenc.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef BUFENC_H
#define BUFENC_H

#include "storage/bufmgr.h"
#include "crypto/kmgr.h"

/* Cluster encryption encrypts only main forks */
#define PageNeedsToBeEncrypted(forknum) \
	(FileEncryptionEnabled && (forknum) == MAIN_FORKNUM)


extern void InitializeBufferEncryption(void);
extern void EncryptPage(Page page,
						BlockNumber blkno);
extern void DecryptPage(Page page,
						BlockNumber blkno);
extern void
EncryptAOBLock(unsigned char *data_buf, const int buf_len,
				  RelFileNode *file_node);
extern void
DecryptAOBlock(unsigned char *data_buf, const int buf_len,
				  RelFileNode *file_node);

#endif							/* BUFENC_H */
