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#ifndef SQL_AUDIT_INCLUDED
#define SQL_AUDIT_INCLUDED
/* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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 */
#include <my_global.h>
#include <mysql/plugin_audit.h>
#include "sql_class.h"
extern unsigned long mysql_global_audit_mask[];
extern void mysql_audit_initialize();
extern void mysql_audit_finalize();
extern void mysql_audit_init_thd(THD *thd);
extern void mysql_audit_free_thd(THD *thd);
extern void mysql_audit_acquire_plugins(THD *thd, ulong *event_class_mask);
#ifndef EMBEDDED_LIBRARY
extern void mysql_audit_notify(THD *thd, uint event_class,
uint event_subtype, ...);
static inline bool mysql_audit_general_enabled()
{
return mysql_global_audit_mask[0] & MYSQL_AUDIT_GENERAL_CLASSMASK;
}
static inline bool mysql_audit_connection_enabled()
{
return mysql_global_audit_mask[0] & MYSQL_AUDIT_CONNECTION_CLASSMASK;
}
static inline bool mysql_audit_table_enabled()
{
return mysql_global_audit_mask[0] & MYSQL_AUDIT_TABLE_CLASSMASK;
}
#else
static inline void mysql_audit_notify(THD *thd, uint event_class,
uint event_subtype, ...) { }
#define mysql_audit_general_enabled() 0
#define mysql_audit_connection_enabled() 0
#define mysql_audit_table_enabled() 0
#endif
extern void mysql_audit_release(THD *thd);
#define MAX_USER_HOST_SIZE 512
static inline uint make_user_name(THD *thd, char *buf)
{
const Security_context *sctx= thd->security_ctx;
return strxnmov(buf, MAX_USER_HOST_SIZE,
sctx->priv_user[0] ? sctx->priv_user : "", "[",
sctx->user ? sctx->user : "", "] @ ",
sctx->host ? sctx->host : "", " [",
sctx->ip ? sctx->ip : "", "]", NullS) - buf;
}
/**
Call audit plugins of GENERAL audit class, MYSQL_AUDIT_GENERAL_LOG subtype.
@param[in] thd
@param[in] time time that event occurred
@param[in] user User name
@param[in] userlen User name length
@param[in] cmd Command name
@param[in] cmdlen Command name length
@param[in] query Query string
@param[in] querylen Query string length
*/
static inline
void mysql_audit_general_log(THD *thd, time_t time,
const char *user, uint userlen,
const char *cmd, uint cmdlen,
const char *query, uint querylen)
{
if (mysql_audit_general_enabled())
{
CHARSET_INFO *clientcs= thd ? thd->variables.character_set_client
: global_system_variables.character_set_client;
const char *db= thd ? thd->db : "";
size_t db_length= thd ? thd->db_length : 0;
mysql_audit_notify(thd, MYSQL_AUDIT_GENERAL_CLASS, MYSQL_AUDIT_GENERAL_LOG,
0, time, user, userlen, cmd, cmdlen,
query, querylen, clientcs, (ha_rows) 0,
db, db_length);
}
}
/**
Call audit plugins of GENERAL audit class.
event_subtype should be set to one of:
MYSQL_AUDIT_GENERAL_ERROR
MYSQL_AUDIT_GENERAL_RESULT
MYSQL_AUDIT_GENERAL_STATUS
@param[in] thd
@param[in] event_subtype Type of general audit event.
@param[in] error_code Error code
@param[in] msg Message
*/
static inline
void mysql_audit_general(THD *thd, uint event_subtype,
int error_code, const char *msg)
{
if (mysql_audit_general_enabled())
{
time_t time= my_time(0);
uint msglen= msg ? strlen(msg) : 0;
const char *user;
uint userlen;
char user_buff[MAX_USER_HOST_SIZE];
CSET_STRING query;
ha_rows rows;
const char *db;
size_t db_length;
if (thd)
{
query= thd->query_string;
user= user_buff;
userlen= make_user_name(thd, user_buff);
rows= thd->get_stmt_da()->current_row_for_warning();
db= thd->db;
db_length= thd->db_length;
}
else
{
user= 0;
userlen= 0;
rows= 0;
db= "";
db_length= 0;
}
mysql_audit_notify(thd, MYSQL_AUDIT_GENERAL_CLASS, event_subtype,
error_code, time, user, userlen, msg, msglen,
query.str(), query.length(), query.charset(), rows,
db, db_length);
}
}
static inline
void mysql_audit_notify_connection_connect(THD *thd)
{
if (mysql_audit_connection_enabled())
{
const Security_context *sctx= thd->security_ctx;
Diagnostics_area *da= thd->get_stmt_da();
mysql_audit_notify(thd, MYSQL_AUDIT_CONNECTION_CLASS,
MYSQL_AUDIT_CONNECTION_CONNECT,
da->is_error() ? da->sql_errno() : 0,
thd->thread_id,
sctx->user, sctx->user ? strlen(sctx->user) : 0,
sctx->priv_user, strlen(sctx->priv_user),
sctx->external_user,
sctx->external_user ? strlen(sctx->external_user) : 0,
sctx->proxy_user, strlen(sctx->proxy_user),
sctx->host, sctx->host ? strlen(sctx->host) : 0,
sctx->ip, sctx->ip ? strlen(sctx->ip) : 0,
thd->db, thd->db ? strlen(thd->db) : 0);
}
}
static inline
void mysql_audit_notify_connection_disconnect(THD *thd, int errcode)
{
if (mysql_audit_connection_enabled())
{
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_CONNECTION_CLASS,
MYSQL_AUDIT_CONNECTION_DISCONNECT,
errcode, thd->thread_id,
sctx->user, sctx->user ? strlen(sctx->user) : 0,
sctx->priv_user, strlen(sctx->priv_user),
sctx->external_user,
sctx->external_user ? strlen(sctx->external_user) : 0,
sctx->proxy_user, strlen(sctx->proxy_user),
sctx->host, sctx->host ? strlen(sctx->host) : 0,
sctx->ip, sctx->ip ? strlen(sctx->ip) : 0,
thd->db, thd->db ? strlen(thd->db) : 0);
}
}
static inline
void mysql_audit_notify_connection_change_user(THD *thd)
{
if (mysql_audit_connection_enabled())
{
const Security_context *sctx= thd->security_ctx;
Diagnostics_area *da= thd->get_stmt_da();
mysql_audit_notify(thd, MYSQL_AUDIT_CONNECTION_CLASS,
MYSQL_AUDIT_CONNECTION_CHANGE_USER,
da->is_error() ? da->sql_errno() : 0,
thd->thread_id,
sctx->user, sctx->user ? strlen(sctx->user) : 0,
sctx->priv_user, strlen(sctx->priv_user),
sctx->external_user,
sctx->external_user ? strlen(sctx->external_user) : 0,
sctx->proxy_user, strlen(sctx->proxy_user),
sctx->host, sctx->host ? strlen(sctx->host) : 0,
sctx->ip, sctx->ip ? strlen(sctx->ip) : 0,
thd->db, thd->db ? strlen(thd->db) : 0);
}
}
static inline
void mysql_audit_external_lock(THD *thd, TABLE_SHARE *share, int lock)
{
if (lock != F_UNLCK && mysql_audit_table_enabled())
{
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_TABLE_CLASS, MYSQL_AUDIT_TABLE_LOCK,
(int)(lock == F_RDLCK), (ulong)thd->thread_id,
sctx->user, sctx->priv_user, sctx->priv_host,
sctx->external_user, sctx->proxy_user, sctx->host,
sctx->ip, share->db.str, (uint)share->db.length,
share->table_name.str, (uint)share->table_name.length,
0,0,0,0);
}
}
static inline
void mysql_audit_create_table(TABLE *table)
{
if (mysql_audit_table_enabled())
{
THD *thd= table->in_use;
const TABLE_SHARE *share= table->s;
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_TABLE_CLASS, MYSQL_AUDIT_TABLE_CREATE,
0, (ulong)thd->thread_id,
sctx->user, sctx->priv_user, sctx->priv_host,
sctx->external_user, sctx->proxy_user, sctx->host,
sctx->ip, share->db.str, (uint)share->db.length,
share->table_name.str, (uint)share->table_name.length,
0,0,0,0);
}
}
static inline
void mysql_audit_drop_table(THD *thd, TABLE_LIST *table)
{
if (mysql_audit_table_enabled())
{
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_TABLE_CLASS, MYSQL_AUDIT_TABLE_DROP,
0, (ulong)thd->thread_id,
sctx->user, sctx->priv_user, sctx->priv_host,
sctx->external_user, sctx->proxy_user, sctx->host,
sctx->ip, table->db, (uint)table->db_length,
table->table_name, (uint)table->table_name_length,
0,0,0,0);
}
}
static inline
void mysql_audit_rename_table(THD *thd, const char *old_db, const char *old_tb,
const char *new_db, const char *new_tb)
{
if (mysql_audit_table_enabled())
{
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_TABLE_CLASS, MYSQL_AUDIT_TABLE_RENAME,
0, (ulong)thd->thread_id,
sctx->user, sctx->priv_user, sctx->priv_host,
sctx->external_user, sctx->proxy_user, sctx->host,
sctx->ip,
old_db, (uint)strlen(old_db), old_tb, (uint)strlen(old_tb),
new_db, (uint)strlen(new_db), new_tb, (uint)strlen(new_tb));
}
}
static inline
void mysql_audit_alter_table(THD *thd, TABLE_LIST *table)
{
if (mysql_audit_table_enabled())
{
const Security_context *sctx= thd->security_ctx;
mysql_audit_notify(thd, MYSQL_AUDIT_TABLE_CLASS, MYSQL_AUDIT_TABLE_ALTER,
0, (ulong)thd->thread_id,
sctx->user, sctx->priv_user, sctx->priv_host,
sctx->external_user, sctx->proxy_user, sctx->host,
sctx->ip, table->db, (uint)table->db_length,
table->table_name, (uint)table->table_name_length,
0,0,0,0);
}
}
#endif /* SQL_AUDIT_INCLUDED */
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