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RIOT/sys/include/net/icmp.h 1.19 KB
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  /*
   * Copyright (C) 2015 José Ignacio Alamos <jialamos@uc.cl>
   *
   * 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_icmp  ICMPV4
   * @ingroup     net_ipv4
   * @brief       Provides types related to ICMPv4
   * @see         <a href="https://tools.ietf.org/html/rfc792">
   *                  RFC 792
   *              </a>
   * @{
   *
   * @file
   * @brief   ICMPv4 type and function definitions
   *
   * @author  José Ignacio Alamos <jialamos@uc.cl>
   */
  #ifndef NET_ICMP_H
  #define NET_ICMP_H
  
  #include "byteorder.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  /**
   * @brief   Echo request and response message format.
   *
   * @see <a href="https://tools.ietf.org/html/rfc792#page-14">
   *          RFC 792, page 14
   *      </a>
   */
  typedef struct __attribute__((packed)){
      uint8_t type;           /**< message type */
      uint8_t code;           /**< message code */
      network_uint16_t csum;  /**< checksum */
      network_uint16_t id;    /**< identifier */
      network_uint16_t sn;    /**< sequence number */
  } icmp_echo_t;
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* NET_ICMP_H */
  /** @} */