kernel/include/net/udp.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *  Copyright (C) 2010  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef _UDP_H
  22 #define _UDP_H
  23
  24 #include <net/ip.h>
  25
  26 #define PROTO_UDP_CONN_STATE_NEW        0x1
  27
  28 /* UDP connection structure */
  29 typedef struct proto_udp_conn_context {
  30         struct proto_udp_conn_context *next, *prev;
  31
  32         net_ipv4 ip_source;
  33         net_ipv4 ip_dest;
  34
  35         net_port port_source;
  36         net_port port_dest;
  37
  38         unsigned short flags;
  39
  40         unsigned char bind;
  41
  42         unsigned char state;
  43
  44         unsigned short fd;
  45
  46         netif_t *netif;
  47
  48         unsigned len;
  49         char *data;
  50 } proto_udp_conn_t;
  51
  52 /* UDP connection structure */
  53 typedef struct proto_udp6_conn_context {
  54         struct proto_udp6_conn_context *next, *prev;
  55
  56         net_ipv6 ip_source;
  57         net_ipv6 ip_dest;
  58
  59         net_port port_source;
  60         net_port port_dest;
  61
  62         unsigned short flags;
  63
  64         unsigned char bind;
  65
  66         unsigned short fd;
  67
  68         netif_t *netif;
  69
  70         unsigned len;
  71         char *data;
  72 } proto_udp6_conn_t;
  73
  74 /* UDP layer structure */
  75 typedef struct proto_udp_t {
  76         net_port port_source;           // 2
  77         net_port port_dest;             // 4
  78
  79         unsigned short len;             // 6
  80
  81         unsigned short checksum;        // 8
  82 } proto_udp_t;
  83
  84
  85 /* externs */
  86 extern int net_proto_udp_anycast (int fd);
  87 extern int net_proto_udp_port (int fd, net_port port);
  88 extern unsigned init_net_proto_udp ();
  89 extern unsigned init_net_proto_udp6 ();
  90
  91 #endif