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Name	Size	Permission	Date
psi	[ DIR ]	drwxr-xr-x	2025-02-25 11:37
auth_dialog_client.h	2.01 KB	-rw-r--r--	2025-02-08 16:02
client_plugin.h	6.18 KB	-rw-r--r--	2025-02-08 16:02
plugin.h	29.19 KB	-rw-r--r--	2025-02-08 16:02
plugin_audit.h	5.41 KB	-rw-r--r--	2025-02-08 16:02
plugin_auth.h	5.27 KB	-rw-r--r--	2025-02-08 16:02
plugin_auth_common.h	4.4 KB	-rw-r--r--	2025-02-08 16:02
plugin_data_type.h	1.27 KB	-rw-r--r--	2025-02-08 16:02
plugin_encryption.h	4.33 KB	-rw-r--r--	2025-02-08 16:02
plugin_ftparser.h	7.65 KB	-rw-r--r--	2025-02-08 16:02
plugin_function.h	1.4 KB	-rw-r--r--	2025-02-08 16:02
plugin_password_validation.h	1.52 KB	-rw-r--r--	2025-02-08 16:02
service_base64.h	2.86 KB	-rw-r--r--	2025-02-08 16:02
service_debug_sync.h	13.26 KB	-rw-r--r--	2025-02-08 16:02
service_encryption.h	5.52 KB	-rw-r--r--	2025-02-08 16:02
service_encryption_scheme.h	5.51 KB	-rw-r--r--	2025-02-08 16:02
service_json.h	4.44 KB	-rw-r--r--	2025-02-08 16:02
service_kill_statement.h	2.02 KB	-rw-r--r--	2025-02-08 16:02
service_log_warnings.h	1.34 KB	-rw-r--r--	2025-02-08 16:02
service_logger.h	3.47 KB	-rw-r--r--	2025-02-08 16:02
service_md5.h	2.07 KB	-rw-r--r--	2025-02-08 16:02
service_my_crypt.h	4.07 KB	-rw-r--r--	2025-02-08 16:02
service_my_print_error.h	2.27 KB	-rw-r--r--	2025-02-08 16:02
service_my_snprintf.h	3.63 KB	-rw-r--r--	2025-02-08 16:02
service_progress_report.h	3.28 KB	-rw-r--r--	2025-02-08 16:02
service_sha1.h	2.11 KB	-rw-r--r--	2025-02-08 16:02
service_sha2.h	5.17 KB	-rw-r--r--	2025-02-08 16:02
service_sql.h	5.01 KB	-rw-r--r--	2025-02-08 16:02
service_thd_alloc.h	4.38 KB	-rw-r--r--	2025-02-08 16:02
service_thd_autoinc.h	1.65 KB	-rw-r--r--	2025-02-08 16:02
service_thd_error_context.h	3.34 KB	-rw-r--r--	2025-02-08 16:02
service_thd_mdl.h	1.25 KB	-rw-r--r--	2025-02-08 16:02
service_thd_rnd.h	1.86 KB	-rw-r--r--	2025-02-08 16:02
service_thd_specifics.h	3.6 KB	-rw-r--r--	2025-02-08 16:02
service_thd_timezone.h	2.24 KB	-rw-r--r--	2025-02-08 16:02
service_thd_wait.h	3.61 KB	-rw-r--r--	2025-02-08 16:02
service_wsrep.h	13.83 KB	-rw-r--r--	2025-02-08 16:02
services.h	1.72 KB	-rw-r--r--	2025-02-08 16:02

Rename

#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 02110-1335  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* (e.g. storage engines) to the encryption
  *provider* (encryption plugin).
*/

#ifndef MYSQL_ABI_CHECK
#include <my_alloca.h>
#ifdef _WIN32
#ifndef __cplusplus
#define inline __inline
#endif
#endif
#endif

#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)

#define ENCRYPTION_FLAG_DECRYPT     0
#define ENCRYPTION_FLAG_ENCRYPT     1
#define ENCRYPTION_FLAG_NOPAD       2

struct encryption_service_st {
  unsigned int (*encryption_key_get_latest_version_func)(unsigned int key_id);
  unsigned int (*encryption_key_get_func)(unsigned int key_id, unsigned int key_version,
                                          unsigned char* buffer, unsigned int* length);
  unsigned int (*encryption_ctx_size_func)(unsigned int key_id, unsigned int key_version);
  int (*encryption_ctx_init_func)(void *ctx, const unsigned char* key, unsigned int klen,
                                  const unsigned char* iv, unsigned int ivlen,
                                  int flags, unsigned int key_id,
                                  unsigned int key_version);
  int (*encryption_ctx_update_func)(void *ctx, const unsigned char* src, unsigned int slen,
                                    unsigned char* dst, unsigned int* dlen);
  int (*encryption_ctx_finish_func)(void *ctx, unsigned char* dst, unsigned int* dlen);
  unsigned int (*encryption_encrypted_length_func)(unsigned int slen, unsigned int key_id, unsigned int key_version);
};

#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_get(KI,KV,K,S) encryption_service->encryption_key_get_func((KI),(KV),(K),(S))
#define encryption_ctx_size(KI,KV) encryption_service->encryption_ctx_size_func((KI),(KV))
#define encryption_ctx_init(CTX,K,KL,IV,IVL,F,KI,KV) encryption_service->encryption_ctx_init_func((CTX),(K),(KL),(IV),(IVL),(F),(KI),(KV))
#define encryption_ctx_update(CTX,S,SL,D,DL) encryption_service->encryption_ctx_update_func((CTX),(S),(SL),(D),(DL))
#define encryption_ctx_finish(CTX,D,DL) encryption_service->encryption_ctx_finish_func((CTX),(D),(DL))
#define encryption_encrypted_length(SL,KI,KV) encryption_service->encryption_encrypted_length_func((SL),(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_get(KI,KV,K,S) encryption_handler.encryption_key_get_func((KI),(KV),(K),(S))
#define encryption_ctx_size(KI,KV) encryption_handler.encryption_ctx_size_func((KI),(KV))
#define encryption_ctx_init(CTX,K,KL,IV,IVL,F,KI,KV) encryption_handler.encryption_ctx_init_func((CTX),(K),(KL),(IV),(IVL),(F),(KI),(KV))
#define encryption_ctx_update(CTX,S,SL,D,DL) encryption_handler.encryption_ctx_update_func((CTX),(S),(SL),(D),(DL))
#define encryption_ctx_finish(CTX,D,DL) encryption_handler.encryption_ctx_finish_func((CTX),(D),(DL))
#define encryption_encrypted_length(SL,KI,KV) encryption_handler.encryption_encrypted_length_func((SL),(KI),(KV))
#endif

static inline unsigned int encryption_key_id_exists(unsigned int id)
{
  return encryption_key_get_latest_version(id) != ENCRYPTION_KEY_VERSION_INVALID;
}

static inline unsigned int encryption_key_version_exists(unsigned int id, unsigned int version)
{
  unsigned int unused;
  return encryption_key_get(id, version, NULL, &unused) != ENCRYPTION_KEY_VERSION_INVALID;
}

static inline int encryption_crypt(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 flags, unsigned int key_id, unsigned int key_version)
{
  void *ctx= alloca(encryption_ctx_size(key_id, key_version));
  int res1, res2;
  unsigned int d1, d2;
  if ((res1= encryption_ctx_init(ctx, key, klen, iv, ivlen, flags, key_id, key_version)))
    return res1;
  res1= encryption_ctx_update(ctx, src, slen, dst, &d1);
  res2= encryption_ctx_finish(ctx, dst + d1, &d2);
  *dlen= d1 + d2;
  return res1 ? res1 : res2;
}

#ifdef __cplusplus
}
#endif

#define MYSQL_SERVICE_ENCRYPTION_INCLUDED
#endif