Kyle Lemons
net/udp.h@0:7e2eb93442e7, 2010-12-12 (annotated)
- Committer:
- etherealflaim
- Date:
- Sun Dec 12 19:34:41 2010 +0000
- Revision:
- 0:7e2eb93442e7
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| etherealflaim | 0:7e2eb93442e7 | 1 | #ifndef UDP_H |
| etherealflaim | 0:7e2eb93442e7 | 2 | #define UDP_H |
| etherealflaim | 0:7e2eb93442e7 | 3 | |
| etherealflaim | 0:7e2eb93442e7 | 4 | #include "net.h" |
| etherealflaim | 0:7e2eb93442e7 | 5 | |
| etherealflaim | 0:7e2eb93442e7 | 6 | /** |
| etherealflaim | 0:7e2eb93442e7 | 7 | \file udp.h |
| etherealflaim | 0:7e2eb93442e7 | 8 | \brief UDP packet |
| etherealflaim | 0:7e2eb93442e7 | 9 | |
| etherealflaim | 0:7e2eb93442e7 | 10 | This file contains the memory map and associated functions for UDP packet |
| etherealflaim | 0:7e2eb93442e7 | 11 | creation and deconstruction. |
| etherealflaim | 0:7e2eb93442e7 | 12 | */ |
| etherealflaim | 0:7e2eb93442e7 | 13 | |
| etherealflaim | 0:7e2eb93442e7 | 14 | #define IPPROTO_UDP 0x11 |
| etherealflaim | 0:7e2eb93442e7 | 15 | #define HVZ_PORT 4489 |
| etherealflaim | 0:7e2eb93442e7 | 16 | #define HVZ_HOSTNAME "kylelemons.net" |
| etherealflaim | 0:7e2eb93442e7 | 17 | |
| etherealflaim | 0:7e2eb93442e7 | 18 | /// UDP Packet memory map |
| etherealflaim | 0:7e2eb93442e7 | 19 | typedef struct { |
| etherealflaim | 0:7e2eb93442e7 | 20 | u16 source_port; ///< Source port (1-65535) |
| etherealflaim | 0:7e2eb93442e7 | 21 | u16 destination_port; ///< Destination port (1-65535) |
| etherealflaim | 0:7e2eb93442e7 | 22 | u16 length; ///< Entire datagram size in bytes |
| etherealflaim | 0:7e2eb93442e7 | 23 | u16 checksum; ///< Checksum |
| etherealflaim | 0:7e2eb93442e7 | 24 | u8 data[]; ///< Data memory map |
| etherealflaim | 0:7e2eb93442e7 | 25 | } UDP_Packet; |
| etherealflaim | 0:7e2eb93442e7 | 26 | |
| etherealflaim | 0:7e2eb93442e7 | 27 | /// Convert from wire to host or host to wire endianness |
| etherealflaim | 0:7e2eb93442e7 | 28 | inline void fix_endian_udp(UDP_Packet *segment) |
| etherealflaim | 0:7e2eb93442e7 | 29 | { |
| etherealflaim | 0:7e2eb93442e7 | 30 | fix_endian_u16(&segment->source_port); |
| etherealflaim | 0:7e2eb93442e7 | 31 | fix_endian_u16(&segment->destination_port); |
| etherealflaim | 0:7e2eb93442e7 | 32 | fix_endian_u16(&segment->length); |
| etherealflaim | 0:7e2eb93442e7 | 33 | } |
| etherealflaim | 0:7e2eb93442e7 | 34 | |
| etherealflaim | 0:7e2eb93442e7 | 35 | #endif |