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in_pcb.h
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C/C++ Source or Header
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1997-04-27
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2KB
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51 lines
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* @(#)in_pcb.h 7.3 (Berkeley) 6/29/88 plus MULTICAST 1.0
*/
/*
* 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 */
struct mbuf *inp_moptions; /* IP multicast options */
};
#define INPLOOKUP_WILDCARD 1
#define INPLOOKUP_SETLOCAL 2
#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
#ifdef KERNEL
struct inpcb *in_pcblookup();
#endif