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@8:1c1f6ce348c6, 2010-10-12 (annotated)

Committer:
etherealflaim
Date:
Tue Oct 12 06:48:59 2010 +0000
Revision:
8:1c1f6ce348c6
Parent:
6:66c4cd9073aa 
Documentation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
etherealflaim 0:d494b853ce97 1 #ifndef ETHERNET_H
etherealflaim 0:d494b853ce97 2 #define ETHERNET_H
etherealflaim 0:d494b853ce97 3
etherealflaim 0:d494b853ce97 4 #include "net.h"
etherealflaim 0:d494b853ce97 5
etherealflaim 6:66c4cd9073aa 6 /**
etherealflaim 6:66c4cd9073aa 7 \file ethernet.h
etherealflaim 6:66c4cd9073aa 8 \brief Ethernet frame header
etherealflaim 6:66c4cd9073aa 9
etherealflaim 6:66c4cd9073aa 10 This file contains the memory map and associated functions for Ethernet frame header
etherealflaim 6:66c4cd9073aa 11 creation and deconstruction.
etherealflaim 6:66c4cd9073aa 12 */
etherealflaim 2:e8e09adc41fc 13
etherealflaim 3:c32d9660b888 14 /// Ethernet MAC address memory map
etherealflaim 0:d494b853ce97 15 typedef struct {
etherealflaim 2:e8e09adc41fc 16 unsigned char octet[6]; ///< Individual octsts of the MAC address
etherealflaim 0:d494b853ce97 17 } Ethernet_MAC;
etherealflaim 0:d494b853ce97 18
etherealflaim 3:c32d9660b888 19 /// Ethernet II Frame Header Memory map
etherealflaim 0:d494b853ce97 20 typedef struct {
etherealflaim 2:e8e09adc41fc 21 /// Destination MAC address (6 octets)
etherealflaim 0:d494b853ce97 22 Ethernet_MAC destination;
etherealflaim 2:e8e09adc41fc 23 /// Source MAC address (6 octets)
etherealflaim 0:d494b853ce97 24 Ethernet_MAC source;
etherealflaim 0:d494b853ce97 25 // (optional) VLAN Tag (unsupported)
etherealflaim 2:e8e09adc41fc 26 /// Ethernet type or length (only <0x600 or 0x0800 IPv4 supported)
etherealflaim 0:d494b853ce97 27 u16 ethertype;
etherealflaim 2:e8e09adc41fc 28 /// Payload (used for memory mapping; has zero size)
etherealflaim 0:d494b853ce97 29 unsigned char payload[];
etherealflaim 0:d494b853ce97 30 } Ethernet_FrameHeader;
etherealflaim 0:d494b853ce97 31
etherealflaim 2:e8e09adc41fc 32 /// Convert from wire to host or host to wire endian-ness
etherealflaim 0:d494b853ce97 33 inline void fix_endian_ethernet(Ethernet_FrameHeader *header)
etherealflaim 0:d494b853ce97 34 {
etherealflaim 0:d494b853ce97 35 fix_endian_u16(&header->ethertype);
etherealflaim 0:d494b853ce97 36 }
etherealflaim 0:d494b853ce97 37
etherealflaim 2:e8e09adc41fc 38 /// Print out an ethernet packet
etherealflaim 0:d494b853ce97 39 inline void print_ethernet(Ethernet_FrameHeader *frame)
etherealflaim 0:d494b853ce97 40 {
etherealflaim 0:d494b853ce97 41 main_log.printf("Ethernet frame:");
etherealflaim 0:d494b853ce97 42 u8 *src = frame->source.octet;
etherealflaim 0:d494b853ce97 43 u8 *dst = frame->destination.octet;
etherealflaim 0:d494b853ce97 44 main_log.printf(" Source: MAC - %02X:%02X:%02X:%02X:%02X:%02X", src[6], src[7], src[8], src[9], src[10], src[11]);
etherealflaim 0:d494b853ce97 45 main_log.printf(" Dest: MAC - %02X:%02X:%02X:%02X:%02X:%02X", dst[0], dst[1], dst[2], dst[3], dst[4], dst[5]);
etherealflaim 0:d494b853ce97 46 main_log.printf(" Ethertype: 0x%04X", frame->ethertype);
etherealflaim 0:d494b853ce97 47 }
etherealflaim 0:d494b853ce97 48
etherealflaim 0:d494b853ce97 49 #endif