/* * 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 */ /* * RCS Info * $Header: in_pcb.h,v 3.1 86/10/22 13:33:50 tadl Exp $ * $Locker: $ */ /* * 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