1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#ifndef MYSQL_SERVICE_ENCRYPTION_INCLUDED
/* Copyright (c) 2015, MariaDB
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 02110-1301 USA */
/**
@file
encryption service
Functions to support data encryption and encryption key management.
They are normally implemented in an encryption plugin, so this service
connects encryption *consumers* (storage engines) to the encryption
*provider* (encryption plugin).
*/
#ifdef __cplusplus
extern "C" {
#endif
/* returned from encryption_key_get_latest_version() */
#define ENCRYPTION_KEY_VERSION_INVALID (~(unsigned int)0)
#define ENCRYPTION_KEY_NOT_ENCRYPTED (0)
#define ENCRYPTION_KEY_SYSTEM_DATA 1
#define ENCRYPTION_KEY_TEMPORARY_DATA 2
/* returned from encryption_key_get() */
#define ENCRYPTION_KEY_BUFFER_TOO_SMALL (100)
typedef int (*encrypt_decrypt_func)(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 no_padding, unsigned int key_id,
unsigned int key_version);
struct encryption_service_st {
unsigned int (*encryption_key_get_latest_version_func)(unsigned int);
unsigned int (*encryption_key_id_exists_func)(unsigned int);
unsigned int (*encryption_key_version_exists_func)(unsigned int, unsigned int);
unsigned int (*encryption_key_get_func)(unsigned int, unsigned int, unsigned char*, unsigned int*);
encrypt_decrypt_func encryption_encrypt_func;
encrypt_decrypt_func encryption_decrypt_func;
};
#ifdef MYSQL_DYNAMIC_PLUGIN
extern struct encryption_service_st *encryption_service;
#define encryption_key_get_latest_version(KI) encryption_service->encryption_key_get_latest_version_func(KI)
#define encryption_key_id_exists(KI) encryption_service->encryption_key_id_exists_func((KI))
#define encryption_key_version_exists(KI,KV) encryption_service->encryption_key_version_exists_func((KI),(KV))
#define encryption_key_get(KI,KV,K,S) encryption_service->encryption_key_get_func((KI),(KV),(K),(S))
#define encryption_encrypt(S,SL,D,DL,K,KL,I,IL,NP,KI,KV) encryption_service->encryption_encrypt_func((S),(SL),(D),(DL),(K),(KL),(I),(IL),(NP),(KI),(KV))
#define encryption_decrypt(S,SL,D,DL,K,KL,I,IL,NP,KI,KV) encryption_service->encryption_decrypt_func((S),(SL),(D),(DL),(K),(KL),(I),(IL),(NP),(KI),(KV))
#else
extern struct encryption_service_st encryption_handler;
#define encryption_key_get_latest_version(KI) encryption_handler.encryption_key_get_latest_version_func(KI)
#define encryption_key_id_exists(KI) encryption_handler.encryption_key_id_exists_func((KI))
#define encryption_key_version_exists(KI,KV) encryption_handler.encryption_key_version_exists_func((KI),(KV))
#define encryption_key_get(KI,KV,K,S) encryption_handler.encryption_key_get_func((KI),(KV),(K),(S))
#define encryption_encrypt(S,SL,D,DL,K,KL,I,IL,NP,KI,KV) encryption_handler.encryption_encrypt_func((S),(SL),(D),(DL),(K),(KL),(I),(IL),(NP),(KI),(KV))
#define encryption_decrypt(S,SL,D,DL,K,KL,I,IL,NP,KI,KV) encryption_handler.encryption_decrypt_func((S),(SL),(D),(DL),(K),(KL),(I),(IL),(NP),(KI),(KV))
#endif
#ifdef __cplusplus
}
#endif
#define MYSQL_SERVICE_ENCRYPTION_INCLUDED
#endif
|
