minix3/net/inet/generic/udp_int.h

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2020-02-21 00:59:27 +05:30
/*
generic/udp_int.h
Created: March 2001 by Philip Homburg <philip@f-mnx.phicoh.com>
Some internals of the UDP module
*/
#define UDP_FD_NR (4*IP_PORT_MAX)
#define UDP_PORT_HASH_NR 16 /* Must be a power of 2 */
typedef struct udp_port
{
int up_flags;
int up_state;
int up_ipfd;
int up_ipdev;
acc_t *up_wr_pack;
ipaddr_t up_ipaddr;
struct udp_fd *up_next_fd;
struct udp_fd *up_write_fd;
struct udp_fd *up_port_any;
struct udp_fd *up_port_hash[UDP_PORT_HASH_NR];
} udp_port_t;
#define UPF_EMPTY 0x0
#define UPF_WRITE_IP 0x1
#define UPF_WRITE_SP 0x2
#define UPF_READ_IP 0x4
#define UPF_READ_SP 0x8
#define UPF_SUSPEND 0x10
#define UPF_MORE2WRITE 0x20
#define UPS_EMPTY 0
#define UPS_SETPROTO 1
#define UPS_GETCONF 2
#define UPS_MAIN 3
#define UPS_ERROR 4
typedef struct udp_fd
{
int uf_flags;
udp_port_t *uf_port;
ioreq_t uf_ioreq;
int uf_srfd;
nwio_udpopt_t uf_udpopt;
get_userdata_t uf_get_userdata;
put_userdata_t uf_put_userdata;
select_res_t uf_select_res;
acc_t *uf_rdbuf_head;
acc_t *uf_rdbuf_tail;
size_t uf_rd_count;
size_t uf_wr_count;
clock_t uf_exp_tim;
struct udp_fd *uf_port_next;
} udp_fd_t;
#define UFF_EMPTY 0x0
#define UFF_INUSE 0x1
#define UFF_IOCTL_IP 0x2
#define UFF_READ_IP 0x4
#define UFF_WRITE_IP 0x8
#define UFF_OPTSET 0x10
#define UFF_PEEK_IP 0x20
#define UFF_SEL_READ 0x40
#define UFF_SEL_WRITE 0x80
EXTERN udp_port_t *udp_port_table;
EXTERN udp_fd_t udp_fd_table[UDP_FD_NR];
/*
* $PchId: udp_int.h,v 1.4 2004/08/03 11:12:01 philip Exp $
*/