#pragma once

/*
 * Copyright (c) 2016 MariaDB Corporation Ab
 *
 * Use of this software is governed by the Business Source License included
 * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
 *
 * Change Date: 2024-11-16
 *
 * On the date above, in accordance with the Business Source License, use
 * of this software will be governed by version 2 or later of the General
 * Public License.
 */

#include <maxscale/ccdefs.hh>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <maxscale/dcb.hh>
#include <maxscale/buffer.hh>
#include <maxscale/service.hh>
#include <maxscale/session.hh>
#include <maxscale/router.hh>
#include <maxscale/poll.hh>
#include <maxbase/atomic.h>

MXS_BEGIN_DECLS

#define CDC_SMALL_BUFFER       1024
#define CDC_METHOD_MAXLEN      128
#define CDC_USER_MAXLEN        128
#define CDC_HOSTNAME_MAXLEN    512
#define CDC_USERAGENT_MAXLEN   1024
#define CDC_FIELD_MAXLEN       8192
#define CDC_REQUESTLINE_MAXLEN 8192

#define CDC_UNDEFINED             0
#define CDC_ALLOC                 1
#define CDC_STATE_WAIT_FOR_AUTH   2
#define CDC_STATE_AUTH_OK         3
#define CDC_STATE_AUTH_FAILED     4
#define CDC_STATE_AUTH_ERR        5
#define CDC_STATE_AUTH_NO_SESSION 6
#define CDC_STATE_REGISTRATION    7
#define CDC_STATE_HANDLE_REQUEST  8
#define CDC_STATE_CLOSE           9

#define CDC_UUID_LEN 32
#define CDC_TYPE_LEN 16
/**
 * CDC session specific data
 */
typedef struct cdc_session
{
    char         user[CDC_USER_MAXLEN + 1];     /*< username for authentication */
    char         uuid[CDC_UUID_LEN + 1];        /*< client uuid in registration */
    unsigned int flags[2];                      /*< Received flags              */
    uint8_t      auth_data[SHA_DIGEST_LENGTH];  /*< Password Hash               */
    int          state;                         /*< CDC protocol state          */
} CDC_session;

/**
 * CDC protocol
 */
typedef struct  cdc_protocol
{
    int             state;                      /*< CDC protocol state          */
    char            user[CDC_USER_MAXLEN + 1];  /*< username for authentication */
    pthread_mutex_t lock;                       /*< Protocol structure lock     */
    char            type[CDC_TYPE_LEN + 1];     /*< Request Type            */
} CDC_protocol;

/* routines */
extern int gw_hex2bin(uint8_t* out, const char* in, unsigned int len);

MXS_END_DECLS