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/*
 * Copyright (c) 2008 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup tcp
 *  @{
 */

/** @file
 *  \todo
 */

#include <async.h>
#include <stdio.h>

#include <ipc/ipc.h>
#include <ipc/services.h>

#include "../../err.h"
#include "../../messages.h"
#include "../../modules.h"
#include "../../structures/packet/packet_client.h"

#include "../../include/ip_client.h"
#include "../../include/ip_interface.h"
#include "../../include/ip_protocols.h"

#include "../tl_messages.h"

#include "tcp.h"
#include "tcp_module.h"

/** Free ports pool start.
 */
#define TCP_FREE_PORTS_START    1025

/** Free ports pool end.
 */
#define TCP_FREE_PORTS_END      65535

/** TCP global data.
 */
tcp_globals_t   tcp_globals;

int tcp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error );

/** Initializes the module.
 */
int tcp_initialize( async_client_conn_t client_connection ){
    ERROR_DECLARE;

    fibril_rwlock_initialize( & tcp_globals.lock );
    fibril_rwlock_write_lock( & tcp_globals.lock );
    tcp_globals.icmp_phone = icmp_connect_module( SERVICE_ICMP );
    if( tcp_globals.icmp_phone < 0 ){
        return tcp_globals.icmp_phone;
    }
    tcp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_TCP, SERVICE_TCP, client_connection, tcp_received_msg );
    if( tcp_globals.ip_phone < 0 ){
        return tcp_globals.ip_phone;
    }
    ERROR_PROPAGATE( socket_ports_initialize( & tcp_globals.sockets ));
    tcp_globals.last_used_port = TCP_FREE_PORTS_START - 1;
    fibril_rwlock_write_unlock( & tcp_globals.lock );
    return EOK;
}

int tcp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){
    // TODO received
    //  TODO remove debug dump:
    uint8_t *   data;
    data = packet_get_data( packet );
    printf( "Receiving packet:\n\tid\t= %d\n\tlength\t= %d\n\tdata\t= %.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX\n\t\t%.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX\n", packet_get_id( packet ), packet_get_data_length( packet ), data[ 0 ], data[ 1 ], data[ 2 ], data[ 3 ], data[ 4 ], data[ 5 ], data[ 6 ], data[ 7 ], data[ 8 ], data[ 9 ], data[ 10 ], data[ 11 ], data[ 12 ], data[ 13 ], data[ 14 ], data[ 15 ], data[ 16 ], data[ 17 ], data[ 18 ], data[ 19 ], data[ 20 ], data[ 21 ], data[ 22 ], data[ 23 ], data[ 24 ], data[ 25 ], data[ 26 ], data[ 27 ], data[ 28 ], data[ 29 ], data[ 30 ], data[ 31 ], data[ 32 ], data[ 33 ], data[ 34 ], data[ 35 ], data[ 36 ], data[ 37 ], data[ 38 ], data[ 39 ], data[ 40 ], data[ 41 ], data[ 42 ], data[ 43 ], data[ 44 ], data[ 45 ], data[ 46 ], data[ 47 ], data[ 48 ], data[ 49 ], data[ 50 ], data[ 51 ], data[ 52 ], data[ 53 ], data[ 54 ], data[ 55 ], data[ 56 ], data[ 57 ], data[ 58 ], data[ 59 ] );
    pq_release( tcp_globals.net_phone, packet_get_id( packet ));

    return EOK;
}

int tcp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
    ERROR_DECLARE;

    packet_t    packet;

    * answer_count = 0;
    switch( IPC_GET_METHOD( * call )){
        case IPC_M_PHONE_HUNGUP:
            return EOK;
        case NET_TL_RECEIVED:
            ERROR_PROPAGATE( packet_translate( tcp_globals.net_phone, & packet, IPC_GET_PACKET( call )));
            return tcp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_TCP, IPC_GET_ERROR( call ));
    }
    return ENOTSUP;
}

/** @}
 */