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/icmp.h@6:66c4cd9073aa, 2010-10-12 (annotated)

Committer:
etherealflaim
Date:
Tue Oct 12 06:46:22 2010 +0000
Revision:
6:66c4cd9073aa
Parent:
3:c32d9660b888 
File documentation updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
etherealflaim 0:d494b853ce97 1 #ifndef ICMP_H
etherealflaim 0:d494b853ce97 2 #define ICMP_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 icmp.h
etherealflaim 6:66c4cd9073aa 8 \brief ICMP frame header
etherealflaim 6:66c4cd9073aa 9
etherealflaim 6:66c4cd9073aa 10 This file contains the memory map and associated functions for ICMP packet
etherealflaim 6:66c4cd9073aa 11 creation and deconstruction.
etherealflaim 6:66c4cd9073aa 12 */
etherealflaim 2:e8e09adc41fc 13
etherealflaim 0:d494b853ce97 14 #define ICMP_ECHO_REPLY 0x00
etherealflaim 0:d494b853ce97 15 #define ICMP_ECHO_REQUEST 0x08
etherealflaim 0:d494b853ce97 16 #define IPPROTO_ICMP 0x01
etherealflaim 2:e8e09adc41fc 17
etherealflaim 3:c32d9660b888 18 /// ICMP packet memory map
etherealflaim 0:d494b853ce97 19 typedef struct {
etherealflaim 2:e8e09adc41fc 20 u8 type; ///< type of ICMP message
etherealflaim 2:e8e09adc41fc 21 u8 code; ///< code number associated with certain message types
etherealflaim 0:d494b853ce97 22 u16 checksum;
etherealflaim 2:e8e09adc41fc 23 u16 id; ///< ID value, returned in ECHO REPLY
etherealflaim 2:e8e09adc41fc 24 u16 sequence; ///< Sequence value to be returned with ECHO REPLY
etherealflaim 2:e8e09adc41fc 25 u8 data[]; ///< Data memory map
etherealflaim 0:d494b853ce97 26 } ICMP_Packet;
etherealflaim 0:d494b853ce97 27
etherealflaim 2:e8e09adc41fc 28 /// Convert from wire to host or host to wire endianness
etherealflaim 0:d494b853ce97 29 inline void fix_endian_icmp(ICMP_Packet *segment)
etherealflaim 0:d494b853ce97 30 {
etherealflaim 0:d494b853ce97 31 fix_endian_u16(&segment->checksum);
etherealflaim 0:d494b853ce97 32 fix_endian_u16(&segment->id);
etherealflaim 0:d494b853ce97 33 fix_endian_u16(&segment->sequence);
etherealflaim 0:d494b853ce97 34 }
etherealflaim 0:d494b853ce97 35
etherealflaim 2:e8e09adc41fc 36 /// Print the ICMP packet
etherealflaim 0:d494b853ce97 37 inline void print_icmp(ICMP_Packet *segment)
etherealflaim 0:d494b853ce97 38 {
etherealflaim 0:d494b853ce97 39 main_log.printf("ICMP Packet:");
etherealflaim 0:d494b853ce97 40 main_log.printf(" Type: 0x%02X", segment->type);
etherealflaim 0:d494b853ce97 41 main_log.printf(" Code: 0x%02X", segment->code);
etherealflaim 0:d494b853ce97 42 main_log.printf(" Checksum: 0x%04X", segment->checksum);
etherealflaim 0:d494b853ce97 43 main_log.printf(" ID: 0x%04X", segment->id);
etherealflaim 0:d494b853ce97 44 main_log.printf(" Sequence: 0x%04X", segment->sequence);
etherealflaim 0:d494b853ce97 45 }
etherealflaim 0:d494b853ce97 46
etherealflaim 0:d494b853ce97 47 #endif