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  1. /*
  2.  * Copyright (c) 2009 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 eth
  30.  *  @{
  31.  */
  32.  
  33. /**
  34.  * @file
  35.  */
  36.  
  37. #ifndef __NET_ETH_H__
  38. #define __NET_ETH_H__
  39.  
  40. #include <rwlock.h>
  41. #include <ipc/ipc.h>
  42. #include <ipc/services.h>
  43.  
  44. #include "../../include/sockaddr.h"
  45. #include "../../netif/device.h"
  46. #include "../../structures/measured_strings.h"
  47.  
  48. /** Type definition of the Ethernet global data.
  49.  *  @see eth_globals
  50.  */
  51. typedef struct eth_globals  eth_globals_t;
  52.  
  53. /** Type definition of the Ethernet device specific data.
  54.  *  @see eth_device
  55.  */
  56. typedef struct eth_device   eth_device_t;
  57.  
  58. /** Type definition of the Ethernet device specific data pointer.
  59.  *  @see eth_device
  60.  */
  61. typedef eth_device_t *      eth_device_ref;
  62.  
  63. /** Type definition of the Ethernet protocol specific data.
  64.  *  @see eth_proto
  65.  */
  66. typedef struct eth_proto    eth_proto_t;
  67.  
  68. /** Type definition of the Ethernet protocol specific data pointer.
  69.  *  @see eth_proto
  70.  */
  71. typedef eth_proto_t *       eth_proto_ref;
  72.  
  73. /** Ethernet address cache.
  74.  *  Maps devices to the Ethernet device specific data.
  75.  *  @see device.h
  76.  */
  77. DEVICE_MAP_DECLARE( eth_devices, eth_device_t )
  78.  
  79. /** Ethernet protocol map.
  80.  *  Maps protocol identifiers to the Ethernet protocol specific data.
  81.  *  @see int_map.h
  82.  */
  83. INT_MAP_DECLARE( eth_protos, eth_proto_t )
  84.  
  85. /** Ethernet device specific data.
  86.  */
  87. struct  eth_device{
  88.     /** Device identifier.
  89.      */
  90.     device_id_t         device_id;
  91.     /** Device driver service.
  92.      */
  93.     services_t          service;
  94.     /** Driver phone.
  95.      */
  96.     int                 phone;
  97.     /** Maximal transmission unit.
  98.      */
  99.     size_t              mtu;
  100.     /** Dummy device.
  101.      *  Preamble and FCS are mandatory part of the packets.
  102.      */
  103.     int                 dummy;
  104.     /** Actual device hardware address.
  105.      */
  106.     measured_string_ref addr;
  107.     /** Actual device hardware address data.
  108.      */
  109.     char *              addr_data;
  110. };
  111.  
  112. /** Ethernet protocol specific data.
  113.  */
  114. struct eth_proto{
  115.     /** Protocol service.
  116.      */
  117.     services_t  service;
  118.     /** Protocol identifier.
  119.      */
  120.     int         protocol;
  121.     /** Protocol module phone.
  122.      */
  123.     int         phone;
  124. };
  125.  
  126. /** Ethernet global data.
  127.  */
  128. struct  eth_globals{
  129.     /** Networking module phone.
  130.      */
  131.     int             networking_phone;
  132.     /** Safety lock for devices.
  133.      */
  134.     rwlock_t        devices_lock;
  135.     /** All known Ethernet devices.
  136.      */
  137.     eth_devices_t   devices;
  138.     /** Safety lock for protocols.
  139.      */
  140.     rwlock_t        protos_lock;
  141.     /** Protocol map.
  142.      *  Service phone map for each protocol.
  143.      */
  144.     eth_protos_t    protos;
  145.     /** Broadcast device hardware address.
  146.      */
  147.     measured_string_ref broadcast_addr;
  148. };
  149.  
  150. #endif
  151.  
  152. /** @}
  153.  */
  154.