45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* @(#)in_pcb.h 1.1 94/10/31 SMI; from UCB 7.1 6/5/86 */
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/*
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* Copyright (c) 1982, 1986 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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/*
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* Common structure pcb for internet protocol implementation.
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* Here are stored pointers to local and foreign host table
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* entries, local and foreign socket numbers, and pointers
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* up (to a socket structure) and down (to a protocol-specific)
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* control block.
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*/
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#ifndef _netinet_in_pcb_h
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#define _netinet_in_pcb_h
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struct inpcb {
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struct inpcb *inp_next,*inp_prev;
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/* pointers to other pcb's */
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struct inpcb *inp_head; /* pointer back to chain of inpcb's
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for this protocol */
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struct in_addr inp_faddr; /* foreign host table entry */
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u_short inp_fport; /* foreign port */
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struct in_addr inp_laddr; /* local host table entry */
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u_short inp_lport; /* local port */
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struct socket *inp_socket; /* back pointer to socket */
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caddr_t inp_ppcb; /* pointer to per-protocol pcb */
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struct route inp_route; /* placeholder for routing entry */
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struct mbuf *inp_options; /* IP options */
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};
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#define INPLOOKUP_WILDCARD 1
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#define INPLOOKUP_SETLOCAL 2
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#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
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#ifdef KERNEL
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struct inpcb *in_pcblookup();
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#endif
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#endif /*!_netinet_in_pcb_h*/
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