V8/usr/sys/h/inet/udp_var.h
/* udp_var.h 6.1 83/07/29 */
/*
* UDP kernel structures and variables.
*/
struct udpiphdr {
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_x1 ui_i.ih_x1
#define ui_pr ui_i.ih_pr
#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
struct udpstat {
int udps_hdrops;
int udps_badsum;
int udps_badlen;
};
#ifdef KERNEL
/*
struct inpcb udb;
*/
struct udpstat udpstat;
#endif
/* sizeof largest udp message (at ip level) */
#define UDP_MSG_LIMIT (UDP_BODY_LIMIT+sizeof(struct udpiphdr))