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/* libgcry.h - rsyslog's guardtime support library
*
* Copyright 2013 Adiscon GmbH.
*
* This file is part of rsyslog.
*
* 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_LIBGCRY_H
#define INCLUDED_LIBGCRY_H
#include <gt_base.h>
struct gcryctx_s {
uchar *key;
size_t keyLen;
};
typedef struct gcryctx_s *gcryctx;
typedef struct gcryfile_s *gcryfile;
/* this describes a file, as far as libgcry is concerned */
struct gcryfile_s {
gcry_cipher_hd_t chd; /* cypher handle */
size_t blkLength; /* size of low-level crypto block */
uchar *eiName; /* name of .encinfo file */
int fd; /* descriptor of .encinfo file (-1 if not open) */
gcryctx ctx;
};
int rsgcryInit(void);
void rsgcryExit(void);
int rsgcrySetKey(gcryctx ctx, unsigned char *key, uint16_t keyLen);
gcryctx gcryCtxNew(void);
void rsgcryCtxDel(gcryctx ctx);
int gcryfileDestruct(gcryfile gf, off64_t offsLogfile);
rsRetVal rsgcryInitCrypt(gcryctx ctx, gcryfile *pgf, int gcry_mode, uchar *fname);
int rsgcryEncrypt(gcryfile pF, uchar *buf, size_t *len);
/* error states */
#define RSGCRYE_EI_OPEN 1 /* error opening .encinfo file */
#define RSGCRYE_OOM 4 /* ran out of memory */
#define RSGCRY_FILETYPE_NAME "rsyslog-enrcyption-info"
#endif /* #ifndef INCLUDED_LIBGCRY_H */
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