fw/icmp.h (c2b0401) - mips_sys · BlinkenArea

icmp.h

/* MIPS I system
 * Copyright 2011-2012 Stefan Schuermans <stefan@schuermans.info>
 * Copyleft GNU public license V2 or later
 *          http://www.gnu.org/copyleft/gpl.html
 */

#ifndef ICMP_H
#define ICMP_H

#include "ethernet.h"
#include "ip.h"

/// header of ICMP packet
struct icmp_header
{
  unsigned char type;
  unsigned char code;
  unsigned short chk;
} __attribute__((packed));

/// ICMP packet
struct icmp_packet
{
  struct ethernet_header eth_hdr;
  struct ip_header ip_hdr;
  struct icmp_header icmp_hdr;
} __attribute__((packed));

// header of ICMP echo request/reply packet
struct icmp_echo_header
{
  unsigned short id;
  unsigned short seq;
} __attribute__((packed));

/// ICMP echo request/reply packet
struct icmp_echo_packet
{
  struct ethernet_header eth_hdr;
  struct ip_header ip_hdr;
  struct icmp_header icmp_hdr;
  struct icmp_echo_header echo_hdr;
} __attribute__((packed));

/**
 * @brief process a received ICMP packet
 * @param[in] ptr pointer to data of packet
 * @param[in] sz size of packet
 */
void icmp_recv(void *ptr, unsigned int sz);

#endif // #ifdef ICMP_H

mips_sys

added file headers