* Copyright (c) 1982, 1986, 1989 Regents of the University of California.
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
* @(#)udp_var.h 7.6 (Berkeley) %G%
* UDP kernel structures and variables.
struct ipovly ui_i
; /* overlaid ip structure */
struct udphdr ui_u
; /* udp header */
#define ui_next ui_i.ih_next
#define ui_prev ui_i.ih_prev
#define ui_len ui_i.ih_len
#define ui_src ui_i.ih_src
#define ui_dst ui_i.ih_dst
#define ui_sport ui_u.uh_sport
#define ui_dport ui_u.uh_dport
#define ui_ulen ui_u.uh_ulen
#define ui_sum ui_u.uh_sum
int udps_ipackets
; /* total input packets */
int udps_hdrops
; /* packet shorter than header */
int udps_badsum
; /* checksum error */
int udps_badlen
; /* data length larger than packet */
int udps_noport
; /* no socket on port */
int udps_noportbcast
; /* of above, arrived as broadcast */
int udps_fullsock
; /* not delivered, input socket full */
int udpps_pcbcachemiss
; /* input packets missing pcb cache */
int udps_opackets
; /* total output packets */
#define UDP_TTL 30 /* default time to live for UDP packets */