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Viewing changes to clients/net-snk/app/netlib/ethernet.h

  • Committer: Package Import Robot
  • Author(s): Aurelien Jarno
  • Date: 2012-09-16 23:05:23 UTC
  • Revision ID: package-import@ubuntu.com-20120916230523-r2ynulqmp2tyu2e5
Tags: upstream-20120217+dfsg
Import upstream version 20120217+dfsg

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clients/net-snk/app/netlib/ethernet.h
 
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/******************************************************************************
 
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 * Copyright (c) 2004, 2008 IBM Corporation
 
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 * All rights reserved.
 
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 * This program and the accompanying materials
 
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 * are made available under the terms of the BSD License
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.opensource.org/licenses/bsd-license.php
 
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 *
 
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 * Contributors:
 
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 *     IBM Corporation - initial implementation
 
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 *****************************************************************************/
 
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#ifndef _ETHERNET_H
 
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#define _ETHERNET_H
 
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#include <stdint.h>
 
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#define ETH_MTU_SIZE     1518   /**< Maximum Transfer Unit         */
 
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#define ETH_ALEN            6   /**< HW address length             */
 
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#define ETHERTYPE_IP   0x0800
 
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#define ETHERTYPE_IPv6 0x86DD
 
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#define ETHERTYPE_ARP  0x0806
 
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/** \struct ethhdr
 
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 *  A header for Ethernet-packets.
 
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 */
 
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struct ethhdr {
 
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        uint8_t dest_mac[ETH_ALEN];   /**< Destination HW address        */
 
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        uint8_t src_mac[ETH_ALEN];    /**< Source HW address             */
 
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        uint16_t type;                /**< Next level protocol type      */
 
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};
 
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/* Initializes ethernet layer */
 
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extern void set_mac_address(const uint8_t * own_mac);
 
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extern const uint8_t * get_mac_address(void);
 
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/* Receives and handles packets, according to Receive-handle diagram */
 
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extern int32_t receive_ether(void);
 
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/* Sends an ethernet frame. */
 
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extern int send_ether(void* buffer, int len);
 
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/* fills ethernet header */
 
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extern void fill_ethhdr(uint8_t * packet, uint16_t eth_type,
 
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                        const uint8_t * src_mac, const uint8_t * dest_mac);
 
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#endif