Kyle Lemons / Mbed 2 deprecated NetTool

This is a low-level network debugging utility that utilizes raw packet i/o to construct and deconstruct tcp, udp, ipv4, arp, and icmp packets over ethernet.

Dependencies:   mbed

net/ethernet.h

Committer:
etherealflaim
Date:
2010-10-12
Revision:
0:d494b853ce97
Child:
2:e8e09adc41fc

File content as of revision 0:d494b853ce97:

#ifndef ETHERNET_H
#define ETHERNET_H

#include "net.h"

typedef struct {
  unsigned char octet[6];
} Ethernet_MAC;

typedef struct {
  // In the Ethernet II Framing Standard:
  // Destination MAC address (6 octets)
  Ethernet_MAC destination;
  // Source MAC address (6 octets)
  Ethernet_MAC source;
  // (optional) VLAN Tag (unsupported)
  // Ethernet type or length (only <0x600 or 0x0800 IPv4 supported)
  u16 ethertype;
  unsigned char payload[];
} Ethernet_FrameHeader;

inline void fix_endian_ethernet(Ethernet_FrameHeader *header)
{
  fix_endian_u16(&header->ethertype);
}

inline void print_ethernet(Ethernet_FrameHeader *frame)
{
  main_log.printf("Ethernet frame:");
  u8 *src = frame->source.octet;
  u8 *dst = frame->destination.octet;
  main_log.printf("  Source:    MAC - %02X:%02X:%02X:%02X:%02X:%02X", src[6], src[7], src[8], src[9], src[10], src[11]);
  main_log.printf("  Dest:      MAC - %02X:%02X:%02X:%02X:%02X:%02X", dst[0], dst[1], dst[2], dst[3], dst[4], dst[5]);
  main_log.printf("  Ethertype: 0x%04X", frame->ethertype);
}

#endif