/*
 * Copyright (c) 1997-1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*
 * 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.
 */

/*
 * 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.
 */

#ifndef _NETINET_IN_PCB_H
#define _NETINET_IN_PCB_H

/* in_pcb.h 1.7 88/08/19 SMI; from UCB 7.1 6/5/86       */

#ifdef  __cplusplus
extern "C" {
#endif

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 */
        ushort_t inp_fport;             /* foreign port */
        struct  in_addr inp_laddr;      /* local host table entry */
        ushort_t 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  __cplusplus
}
#endif

#endif  /* _NETINET_IN_PCB_H */