servers/inet/generic/udp_int.h

   1 /*
   2 generic/udp_int.h
   3
   4 Created:        March 2001 by Philip Homburg <philip@f-mnx.phicoh.com>
   5
   6 Some internals of the UDP module
   7 */
   8
   9 #define UDP_FD_NR               (4*IP_PORT_MAX)
  10 #define UDP_PORT_HASH_NR        16              /* Must be a power of 2 */
  11
  12 typedef struct udp_port
  13 {
  14         int up_flags;
  15         int up_state;
  16         int up_ipfd;
  17         int up_ipdev;
  18         acc_t *up_wr_pack;
  19         ipaddr_t up_ipaddr;
  20         struct udp_fd *up_next_fd;
  21         struct udp_fd *up_write_fd;
  22         struct udp_fd *up_port_any;
  23         struct udp_fd *up_port_hash[UDP_PORT_HASH_NR];
  24 } udp_port_t;
  25
  26 #define UPF_EMPTY       0x0
  27 #define UPF_WRITE_IP    0x1
  28 #define UPF_WRITE_SP    0x2
  29 #define UPF_READ_IP     0x4
  30 #define UPF_READ_SP     0x8
  31 #define UPF_SUSPEND     0x10
  32 #define UPF_MORE2WRITE  0x20
  33
  34 #define UPS_EMPTY       0
  35 #define UPS_SETPROTO    1
  36 #define UPS_GETCONF     2
  37 #define UPS_MAIN        3
  38 #define UPS_ERROR       4
  39
  40 typedef struct udp_fd
  41 {
  42         int uf_flags;
  43         udp_port_t *uf_port;
  44         ioreq_t uf_ioreq;
  45         int uf_srfd;
  46         nwio_udpopt_t uf_udpopt;
  47         get_userdata_t uf_get_userdata;
  48         put_userdata_t uf_put_userdata;
  49         select_res_t uf_select_res;
  50         acc_t *uf_rdbuf_head;
  51         acc_t *uf_rdbuf_tail;
  52         size_t uf_rd_count;
  53         size_t uf_wr_count;
  54         clock_t uf_exp_tim;
  55         struct udp_fd *uf_port_next;
  56 } udp_fd_t;
  57
  58 #define UFF_EMPTY       0x0
  59 #define UFF_INUSE       0x1
  60 #define UFF_IOCTL_IP    0x2
  61 #define UFF_READ_IP     0x4
  62 #define UFF_WRITE_IP    0x8
  63 #define UFF_OPTSET      0x10
  64 #define UFF_PEEK_IP     0x20
  65 #define UFF_SEL_READ    0x40
  66 #define UFF_SEL_WRITE   0x80
  67
  68 EXTERN udp_port_t *udp_port_table;
  69 EXTERN udp_fd_t udp_fd_table[UDP_FD_NR];
  70
  71 /*
  72  * $PchId: udp_int.h,v 1.4 2004/08/03 11:12:01 philip Exp $
  73  */