MaxScale/include/mysql_protocol.h
2013-06-26 09:44:40 +02:00

72 lines
2.4 KiB
C

#ifndef _MYSQL_PROTOCOL_H
#define _MYSQL_PROTOCOL_H
/*
* This file is distributed as part of the SkySQL Gateway. It 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.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright SkySQL Ab 2013
*/
/*
* Revision History
*
* Date Who Description
* 01-06-2013 Mark Riddoch Initial implementation
* 14-06-2013 Massimiliano Pinto Added specific data
* for MySQL session
*/
#ifndef MYSQL_SCRAMBLE_LEN
#define MYSQL_SCRAMBLE_LEN GW_MYSQL_SCRAMBLE_SIZE
#endif
#define MYSQL_USER_MAXLEN 128
#define MYSQL_DATABASE_MAXLEN 128
struct dcb;
/**
* MySQL Protocol specific state data
*/
typedef struct {
int fd; /**< The socket descriptor */
struct dcb *descriptor; /**< The DCB of the socket we are running on */
int state; /**< Current descriptor state */
char scramble[MYSQL_SCRAMBLE_LEN]; /**< server scramble, created or received */
uint32_t server_capabilities; /**< server capabilities, created or received */
uint32_t client_capabilities; /**< client capabilities, created or received */
unsigned long tid; /**< MySQL Thread ID, in handshake */
} MySQLProtocol;
/**
* MySQL session specific data
*
*/
typedef struct mysql_session {
uint8_t client_sha1[MYSQL_SCRAMBLE_LEN]; /**< SHA1(passowrd) */
char user[MYSQL_USER_MAXLEN]; /**< username */
char db[MYSQL_DATABASE_MAXLEN]; /**< database */
} MYSQL_session;
/* MySQL Protocol States */
#define MYSQL_ALLOC 0 /**< Allocate data */
#define MYSQL_AUTH_SENT 1 /**< Authentication handshake has been sent */
#define MYSQL_AUTH_RECV 2 /**< Received user, password, db and capabilities */
#define MYSQL_AUTH_FAILED 3 /**< Auth failed, return error packet */
#define MYSQL_IDLE 4 /**< Auth done. Protocol is idle, waiting for statements */
#define MYSQL_ROUTING 5 /**< The received command has been routed to backend(s) */
#define MYSQL_WAITING_RESULT 6 /**< Waiting for result set */
#endif