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#ifndef MYSQL_SERVICE_MY_CRYPT_INCLUDED
#define MYSQL_SERVICE_MY_CRYPT_INCLUDED
/*
Copyright (c) 2014 Google Inc.
Copyright (c) 2014, 2015 MariaDB Corporation
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file
my crypt service
AES encryption functions, and a function to generate random bytes.
Include my_config.h before this file to use CTR and GCM modes
(they only work if server was compiled with openssl).
*/
#ifdef __cplusplus
extern "C" {
#endif
/* return values from my_aes_encrypt/my_aes_decrypt functions */
#define MY_AES_OK 0
#define MY_AES_BAD_DATA -100
#define MY_AES_OPENSSL_ERROR -101
#define MY_AES_BAD_KEYSIZE -102
/* The block size for all supported algorithms */
#define MY_AES_BLOCK_SIZE 16
/* The max key length of all supported algorithms */
#define MY_AES_MAX_KEY_LENGTH 32
#define MY_AES_CTX_SIZE 656
enum my_aes_mode {
MY_AES_ECB, MY_AES_CBC
#ifdef HAVE_EncryptAes128Ctr
, MY_AES_CTR
#endif
#ifdef HAVE_EncryptAes128Gcm
, MY_AES_GCM
#endif
};
extern struct my_crypt_service_st {
int (*my_aes_crypt_init)(void *ctx, enum my_aes_mode mode, int flags,
const unsigned char* key, unsigned int klen,
const unsigned char* iv, unsigned int ivlen);
int (*my_aes_crypt_update)(void *ctx, const unsigned char *src, unsigned int slen,
unsigned char *dst, unsigned int *dlen);
int (*my_aes_crypt_finish)(void *ctx, unsigned char *dst, unsigned int *dlen);
int (*my_aes_crypt)(enum my_aes_mode mode, int flags,
const unsigned char *src, unsigned int slen, unsigned char *dst, unsigned int *dlen,
const unsigned char *key, unsigned int klen, const unsigned char *iv, unsigned int ivlen);
unsigned int (*my_aes_get_size)(enum my_aes_mode mode, unsigned int source_length);
unsigned int (*my_aes_ctx_size)(enum my_aes_mode mode);
int (*my_random_bytes)(unsigned char* buf, int num);
} *my_crypt_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define my_aes_crypt_init(A,B,C,D,E,F,G) \
my_crypt_service->my_aes_crypt_init(A,B,C,D,E,F,G)
#define my_aes_crypt_update(A,B,C,D,E) \
my_crypt_service->my_aes_crypt_update(A,B,C,D,E)
#define my_aes_crypt_finish(A,B,C) \
my_crypt_service->my_aes_crypt_finish(A,B,C)
#define my_aes_crypt(A,B,C,D,E,F,G,H,I,J) \
my_crypt_service->my_aes_crypt(A,B,C,D,E,F,G,H,I,J)
#define my_aes_get_size(A,B)\
my_crypt_service->my_aes_get_size(A,B)
#define my_aes_ctx_size(A)\
my_crypt_service->my_aes_ctx_size(A)
#define my_random_bytes(A,B)\
my_crypt_service->my_random_bytes(A,B)
#else
int my_aes_crypt_init(void *ctx, enum my_aes_mode mode, int flags,
const unsigned char* key, unsigned int klen,
const unsigned char* iv, unsigned int ivlen);
int my_aes_crypt_update(void *ctx, const unsigned char *src, unsigned int slen,
unsigned char *dst, unsigned int *dlen);
int my_aes_crypt_finish(void *ctx, unsigned char *dst, unsigned int *dlen);
int my_aes_crypt(enum my_aes_mode mode, int flags,
const unsigned char *src, unsigned int slen, unsigned char *dst, unsigned int *dlen,
const unsigned char *key, unsigned int klen, const unsigned char *iv, unsigned int ivlen);
int my_random_bytes(unsigned char* buf, int num);
unsigned int my_aes_get_size(enum my_aes_mode mode, unsigned int source_length);
unsigned int my_aes_ctx_size(enum my_aes_mode mode);
#endif
#ifdef __cplusplus
}
#endif
#endif /* MYSQL_SERVICE_MY_CRYPT_INCLUDED */
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