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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, uint event_class);
#ifndef EMBEDDED_LIBRARY
extern void mysql_audit_notify(THD *thd, uint event_class,
uint event_subtype, ...);
#else
#define mysql_audit_notify(...)
#endif
extern void mysql_audit_release(THD *thd);
#define MAX_USER_HOST_SIZE 512
static inline uint make_user_name(THD *thd, char *buf)
{
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->get_host()->length() ? sctx->get_host()->ptr() :
"", " [", sctx->get_ip()->length() ? sctx->get_ip()->ptr() :
"", "]", 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)
{
#ifndef EMBEDDED_LIBRARY
if (mysql_global_audit_mask[0] & MYSQL_AUDIT_GENERAL_CLASSMASK)
{
MYSQL_LEX_STRING sql_command, ip, host, external_user;
static MYSQL_LEX_STRING empty= { C_STRING_WITH_LEN("") };
if (thd)
{
ip.str= (char *) thd->security_ctx->get_ip()->ptr();
ip.length= thd->security_ctx->get_ip()->length();
host.str= (char *) thd->security_ctx->get_host()->ptr();
host.length= thd->security_ctx->get_host()->length();
external_user.str= (char *) thd->security_ctx->get_external_user()->ptr();
external_user.length= thd->security_ctx->get_external_user()->length();
sql_command.str= (char *) sql_statement_names[thd->lex->sql_command].str;
sql_command.length= sql_statement_names[thd->lex->sql_command].length;
}
else
{
ip= empty;
host= empty;
external_user= empty;
sql_command= empty;
}
const CHARSET_INFO *clientcs= thd ? thd->variables.character_set_client
: global_system_variables.character_set_client;
mysql_audit_notify(thd, MYSQL_AUDIT_GENERAL_CLASS, MYSQL_AUDIT_GENERAL_LOG,
0, time, user, userlen, cmd, cmdlen, query, querylen,
clientcs, 0, sql_command, host, external_user, ip);
}
#endif
}
/**
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)
{
#ifndef EMBEDDED_LIBRARY
if (mysql_global_audit_mask[0] & MYSQL_AUDIT_GENERAL_CLASSMASK)
{
time_t time= my_time(0);
uint msglen= msg ? strlen(msg) : 0;
uint userlen;
const char *user;
char user_buff[MAX_USER_HOST_SIZE];
CSET_STRING query;
MYSQL_LEX_STRING ip, host, external_user, sql_command;
ha_rows rows;
static MYSQL_LEX_STRING empty= { C_STRING_WITH_LEN("") };
if (thd)
{
query= thd->query_string;
user= user_buff;
userlen= make_user_name(thd, user_buff);
rows= thd->warning_info->current_row_for_warning();
ip.str= (char *) thd->security_ctx->get_ip()->ptr();
ip.length= thd->security_ctx->get_ip()->length();
host.str= (char *) thd->security_ctx->get_host()->ptr();
host.length= thd->security_ctx->get_host()->length();
external_user.str= (char *) thd->security_ctx->get_external_user()->ptr();
external_user.length= thd->security_ctx->get_external_user()->length();
sql_command.str= (char *) sql_statement_names[thd->lex->sql_command].str;
sql_command.length= sql_statement_names[thd->lex->sql_command].length;
}
else
{
user= 0;
userlen= 0;
ip= empty;
host= empty;
external_user= empty;
sql_command= empty;
rows= 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,
sql_command, host, external_user, ip);
}
#endif
}
#define MYSQL_AUDIT_NOTIFY_CONNECTION_CONNECT(thd) mysql_audit_notify(\
(thd), MYSQL_AUDIT_CONNECTION_CLASS, MYSQL_AUDIT_CONNECTION_CONNECT,\
(thd)->stmt_da->is_error() ? (thd)->stmt_da->sql_errno() : 0,\
(thd)->thread_id, (thd)->security_ctx->user,\
(thd)->security_ctx->user ? strlen((thd)->security_ctx->user) : 0,\
(thd)->security_ctx->priv_user, strlen((thd)->security_ctx->priv_user),\
(thd)->security_ctx->get_external_user()->ptr(),\
(thd)->security_ctx->get_external_user()->length(),\
(thd)->security_ctx->proxy_user, strlen((thd)->security_ctx->proxy_user),\
(thd)->security_ctx->get_host()->ptr(),\
(thd)->security_ctx->get_host()->length(),\
(thd)->security_ctx->get_ip()->ptr(),\
(thd)->security_ctx->get_ip()->length(),\
(thd)->db, (thd)->db ? strlen((thd)->db) : 0)
#define MYSQL_AUDIT_NOTIFY_CONNECTION_DISCONNECT(thd, errcode)\
mysql_audit_notify(\
(thd), MYSQL_AUDIT_CONNECTION_CLASS, MYSQL_AUDIT_CONNECTION_DISCONNECT,\
(errcode), (thd)->thread_id, "", 0, "", 0, "", 0, "", 0, "", 0, "", 0, "", 0)
#define MYSQL_AUDIT_NOTIFY_CONNECTION_CHANGE_USER(thd) mysql_audit_notify(\
(thd), MYSQL_AUDIT_CONNECTION_CLASS, MYSQL_AUDIT_CONNECTION_CHANGE_USER,\
(thd)->stmt_da->is_error() ? (thd)->stmt_da->sql_errno() : 0,\
(thd)->thread_id, (thd)->security_ctx->user,\
(thd)->security_ctx->user ? strlen((thd)->security_ctx->user) : 0,\
(thd)->security_ctx->priv_user, strlen((thd)->security_ctx->priv_user),\
(thd)->security_ctx->get_external_user()->ptr(),\
(thd)->security_ctx->get_external_user()->length(),\
(thd)->security_ctx->proxy_user, strlen((thd)->security_ctx->proxy_user),\
(thd)->security_ctx->get_host()->ptr(),\
(thd)->security_ctx->get_host()->length(),\
(thd)->security_ctx->get_ip()->ptr(),\
(thd)->security_ctx->get_ip()->length(),\
(thd)->db, (thd)->db ? strlen((thd)->db) : 0)
#endif /* SQL_AUDIT_INCLUDED */
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