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4499 mejdrech 1
/*
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 * Copyright (c) 2008 Lukas Mejdrech
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup udp
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 *  @{
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 */
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/** @file
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 *  UDP module.
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 */
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#ifndef __NET_UDP_H__
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#define __NET_UDP_H__
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#include <fibril_sync.h>
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#include "../../socket/socket_core.h"
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/** Type definition of the UDP global data.
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 *  @see udp_globals
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 */
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typedef struct udp_globals  udp_globals_t;
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/** UDP global data.
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 */
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struct  udp_globals{
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    /** Networking module phone.
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     */
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    int             net_phone;
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    /** IP module phone.
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     */
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    int             ip_phone;
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    /** ICMP module phone.
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     */
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    int             icmp_phone;
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    /** Reserved packet prefix length.
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     */
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    size_t          prefix;
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    /** Maximal packet content length.
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     */
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    size_t          content;
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    /** Reserved packet suffix length.
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     */
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    size_t          suffix;
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    /** Packet address length.
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     */
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    size_t          addr_len;
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    /** Indicates whether UDP checksum computing is enabled.
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     */
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    int             checksum_computing;
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    /** Last used free port.
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     */
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    int             last_used_port;
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    /** Active sockets.
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     */
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    socket_ports_t  sockets;
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    /** Safety lock.
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     */
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    fibril_rwlock_t lock;
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};
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#endif
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/** @}
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 */
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