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

Committer:
etherealflaim
Date:
Tue Oct 12 06:21:05 2010 +0000
Revision:
4:88fc7fa58931
Parent:
2:e8e09adc41fc
Child:
6:66c4cd9073aa
More documentation updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
etherealflaim 0:d494b853ce97 1 #ifndef UDP_H
etherealflaim 0:d494b853ce97 2 #define UDP_H
etherealflaim 0:d494b853ce97 3
etherealflaim 0:d494b853ce97 4 #include "net.h"
etherealflaim 0:d494b853ce97 5
etherealflaim 2:e8e09adc41fc 6 /// \file UDP packet
etherealflaim 2:e8e09adc41fc 7
etherealflaim 0:d494b853ce97 8 #define IPPROTO_UDP 0x11
etherealflaim 2:e8e09adc41fc 9
etherealflaim 2:e8e09adc41fc 10 /// UDP Packet memory map
etherealflaim 0:d494b853ce97 11 typedef struct {
etherealflaim 4:88fc7fa58931 12 u16 source_port; ///< Source port (1-65535)
etherealflaim 4:88fc7fa58931 13 u16 destination_port; ///< Destination port (1-65535)
etherealflaim 4:88fc7fa58931 14 u16 length; ///< Entire datagram size in bytes
etherealflaim 4:88fc7fa58931 15 u16 checksum; ///< Checksum
etherealflaim 4:88fc7fa58931 16 u8 data[]; ///< Data memory map
etherealflaim 0:d494b853ce97 17 } UDP_Packet;
etherealflaim 0:d494b853ce97 18
etherealflaim 2:e8e09adc41fc 19 /// Convert from wire to host or host to wire endianness
etherealflaim 0:d494b853ce97 20 inline void fix_endian_udp(UDP_Packet *segment)
etherealflaim 0:d494b853ce97 21 {
etherealflaim 0:d494b853ce97 22 fix_endian_u16(&segment->source_port);
etherealflaim 0:d494b853ce97 23 fix_endian_u16(&segment->destination_port);
etherealflaim 0:d494b853ce97 24 fix_endian_u16(&segment->length);
etherealflaim 0:d494b853ce97 25 }
etherealflaim 0:d494b853ce97 26
etherealflaim 2:e8e09adc41fc 27 /// Print the UDP packet
etherealflaim 0:d494b853ce97 28 inline void print_udp(UDP_Packet *segment)
etherealflaim 0:d494b853ce97 29 {
etherealflaim 0:d494b853ce97 30 main_log.printf("UDP Packet:");
etherealflaim 0:d494b853ce97 31 main_log.printf(" Source: PORT %d", segment->source_port);
etherealflaim 0:d494b853ce97 32 main_log.printf(" Dest: PORT %d", segment->destination_port);
etherealflaim 0:d494b853ce97 33 main_log.printf(" Length: %d", segment->length);
etherealflaim 0:d494b853ce97 34 }
etherealflaim 0:d494b853ce97 35
etherealflaim 0:d494b853ce97 36 #endif