/*
 * $Header: /smsa/bsd:include/netinet/in_pcb.h:bsd  1.7  $
 * $Source: /smsa/bsd:include/netinet/in_pcb.h: $
 *
 * Copyright (c) 1988 Acorn Computers Ltd., Cambridge, England
 */
/*	@(#)in_pcb.h	2.1 88/05/18 4.0NFSSRC SMI;	from UCB 7.1 6/5/86	*/
/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)in_pcb.h	7.1 (Berkeley) 6/5/86
 */

#ifndef __netinet_in_pcb_h
#define __netinet_in_pcb_h

/*
 * 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)
 * control block.
 */
struct inpcb {
	struct	inpcb *inp_next,*inp_prev;
					/* pointers to other pcb's */
	struct	inpcb *inp_head;	/* pointer back to chain of inpcb's
					   for this protocol */
	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 */
	struct	mbuf *inp_options;	/* IP options */
};

#define	INPLOOKUP_WILDCARD	1
#define	INPLOOKUP_SETLOCAL	2

#define	sotoinpcb(so)	((struct inpcb *)(so)->so_pcb)

#ifdef _KERNEL
struct	inpcb *in_pcblookup();
#endif

#endif/*__netinet_in_pcb_h*/

/* EOF in_pcb.h */
