Modules/IPStack/udp.h

   1 /*
   2  * Acess2 IP Stack
   3  * - UDP Definitions
   4  */
   5 #ifndef _UDP_H_
   6 #define _UDP_H_
   7
   8 #include "ipstack.h"
   9 #include "ipv4.h"
  10
  11 typedef struct sUDPHeader       tUDPHeader;
  12 typedef struct sUDPServer       tUDPServer;
  13 typedef struct sUDPPacket       tUDPPacket;
  14 typedef struct sUDPChannel      tUDPChannel;
  15
  16 struct sUDPHeader
  17 {
  18         Uint16  SourcePort;
  19         Uint16  DestPort;
  20         Uint16  Length;
  21         Uint16  Checksum;
  22         Uint8   Data[];
  23 };
  24
  25 struct sUDPPacket
  26 {
  27         struct sUDPPacket       *Next;
  28         size_t  Length;
  29         Uint8   Data[];
  30 };
  31
  32 struct sUDPChannel
  33 {
  34         struct sUDPChannel      *Next;
  35         tInterface      *Interface;
  36         Uint16  LocalPort;
  37         union {
  38                 tIPv4   v4;
  39                 tIPv6   v6;
  40         }       RemoteAddr;
  41         Uint16  RemotePort;
  42         tVFS_Node       Node;
  43         tShortSpinlock  lQueue;
  44         tUDPPacket      * volatile Queue;
  45         tUDPPacket      *QueueEnd;
  46 };
  47
  48 struct sUDPServer
  49 {
  50         struct sUDPServer       *Next;
  51
  52         tVFS_Node       Node;
  53
  54         tInterface      *Interface;
  55         Uint16  ListenPort;
  56          int    NextID;
  57          int    NumChannels;
  58         tUDPChannel     *Channels;
  59         tMutex  Lock;
  60         tUDPChannel     * volatile NewChannels;
  61 };
  62
  63 #endif