uspace/srv/net/ethip/std.h

   1 /*
   2  * Copyright (c) 2012 Jiri Svoboda
   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 ethip
  30  * @{
  31  */
  32 /**
  33  * @file Ethernet, IP/Ethernet standard definitions
  34  *
  35  */
  36
  37 #ifndef ETHIP_STD_H_
  38 #define ETHIP_STD_H_
  39
  40 #include <stdint.h>
  41 #include <inet/addr.h>
  42
  43 #define ETH_ADDR_SIZE       6
  44 #define IPV4_ADDR_SIZE      4
  45 #define ETH_FRAME_MIN_SIZE  60
  46
  47 /** Ethernet frame header */
  48 typedef struct {
  49         /** Destination Address */
  50         addr48_t dest;
  51         /** Source Address */
  52         addr48_t src;
  53         /** Ethertype or Length */
  54         uint16_t etype_len;
  55 } eth_header_t;
  56
  57 /** ARP packet format (for 48-bit MAC addresses and IPv4) */
  58 typedef struct {
  59         /** Hardware address space */
  60         uint16_t hw_addr_space;
  61         /** Protocol address space */
  62         uint16_t proto_addr_space;
  63         /** Hardware address size */
  64         uint8_t hw_addr_size;
  65         /** Protocol address size */
  66         uint8_t proto_addr_size;
  67         /** Opcode */
  68         uint16_t opcode;
  69         /** Sender hardware address */
  70         addr48_t sender_hw_addr;
  71         /** Sender protocol address */
  72         addr32_t sender_proto_addr;
  73         /** Target hardware address */
  74         addr48_t target_hw_addr;
  75         /** Target protocol address */
  76         addr32_t target_proto_addr;
  77 } __attribute__((packed)) arp_eth_packet_fmt_t;
  78
  79 enum arp_opcode_fmt {
  80         AOP_REQUEST = 1,
  81         AOP_REPLY   = 2
  82 };
  83
  84 enum arp_hw_addr_space {
  85         AHRD_ETHERNET = 1
  86 };
  87
  88 /** IP Ethertype */
  89 enum ether_type {
  90         ETYPE_ARP  = 0x0806,
  91         ETYPE_IP   = 0x0800,
  92         ETYPE_IPV6 = 0x86DD
  93 };
  94
  95 #endif
  96
  97 /** @}
  98  */