* Copyright (c) 1982, 1986, 1990 Regents of the University of California.
* %sccs.include.redist.c%
* @(#)in_pcb.h 7.8 (Berkeley) %G%
* Common structure pcb for internet protocol implementation.
* Here are stored pointers to local and foreign host table
* entries, local and foreign socket numbers, and pointers
* up (to a socket structure) and down (to a protocol-specific)
struct inpcb
*inp_next
,*inp_prev
;
/* pointers to other pcb's */
struct inpcb
*inp_head
; /* pointer back to chain of inpcb's
struct in_addr inp_faddr
; /* foreign host table entry */
u_short inp_fport
; /* foreign port */
struct in_addr inp_laddr
; /* local host table entry */
u_short inp_lport
; /* local port */
struct socket
*inp_socket
; /* back pointer to socket */
caddr_t inp_ppcb
; /* pointer to per-protocol pcb */
struct route inp_route
; /* placeholder for routing entry */
int inp_flags
; /* generic IP/datagram flags */
struct ip inp_ip
; /* header prototype; should have more */
struct mbuf
*inp_options
; /* IP options */
struct ip_moptions
*inp_moptions
; /* IP multicast options */
/* flags in inp_flags: */
#define INP_RECVOPTS 0x01 /* receive incoming IP options */
#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
#define INP_HDRINCL 0x08 /* user supplies entire IP header */
#define INPLOOKUP_WILDCARD 1
#define INPLOOKUP_SETLOCAL 2
#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
struct inpcb
*in_pcblookup
__P((struct inpcb
*, struct in_addr
, int,
struct in_addr
, int, int));