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  1. /*
  2.  * Copyright (c) 2008 Lukas Mejdrech
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup udp
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  *  UDP module.
  35.  */
  36.  
  37. #ifndef __NET_UDP_H__
  38. #define __NET_UDP_H__
  39.  
  40. #include <fibril_sync.h>
  41.  
  42. #include "../../socket/socket_core.h"
  43.  
  44. /** Type definition of the UDP global data.
  45.  *  @see udp_globals
  46.  */
  47. typedef struct udp_globals  udp_globals_t;
  48.  
  49. /** UDP global data.
  50.  */
  51. struct  udp_globals{
  52.     /** Networking module phone.
  53.      */
  54.     int             net_phone;
  55.     /** IP module phone.
  56.      */
  57.     int             ip_phone;
  58.     /** ICMP module phone.
  59.      */
  60.     int             icmp_phone;
  61.     /** Reserved packet prefix length.
  62.      */
  63.     size_t          prefix;
  64.     /** Maximal packet content length.
  65.      */
  66.     size_t          content;
  67.     /** Reserved packet suffix length.
  68.      */
  69.     size_t          suffix;
  70.     /** Packet address length.
  71.      */
  72.     size_t          addr_len;
  73.     /** Indicates whether UDP checksum computing is enabled.
  74.      */
  75.     int             checksum_computing;
  76.     /** Last used free port.
  77.      */
  78.     int             last_used_port;
  79.     /** Active sockets.
  80.      */
  81.     socket_ports_t  sockets;
  82.     /** Safety lock.
  83.      */
  84.     fibril_rwlock_t lock;
  85. };
  86.  
  87. #endif
  88.  
  89. /** @}
  90.  */
  91.  
  92.