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RIOT/sys/include/net/ethernet/hdr.h 1.3 KB
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  /*
   * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
   *
   * This file is subject to the terms and conditions of the GNU Lesser General
   * Public License v2.1. See the file LICENSE in the top level directory for
   * more details.
   */
  
  /**
   * @defgroup    net_ethernet_hdr Ethernet header
   * @ingroup     net_ethernet
   * @brief       Ethernet header
   * @{
   *
   * @file
   * @brief       Ethernet header definitions
   *
   * @author      Martine Lenders <mlenders@inf.fu-berlin.de>
   */
  
  
  #ifndef NET_ETHERNET_HDR_H
  #define NET_ETHERNET_HDR_H
  
  #include <inttypes.h>
  
  #include "byteorder.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #define ETHERNET_ADDR_LEN       (6)     /**< Length of an Ethernet address */
  
  #ifndef ETH_ALEN
  #define ETH_ALEN ETHERNET_ADDR_LEN      /**< convenient alias for @ref
                                               ETHERNET_ADDR_LEN to comply with
                                               *NIX code */
  #endif
  
  /**
   * @brief   Ethernet header
   */
  typedef struct __attribute__((packed)) {
      uint8_t dst[ETHERNET_ADDR_LEN];     /**< destination address */
      uint8_t src[ETHERNET_ADDR_LEN];     /**< source address */
      network_uint16_t type;              /**< ether type (see @ref net_ethertype) */
  } ethernet_hdr_t;
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* NET_ETHERNET_HDR_H */
  /**
   * @}
   */