1 /* 2 * Copyright (c) 1982, 1986 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)in_pcb.h 7.3 (Berkeley) 06/29/88 18 */ 19 20 /* 21 * Common structure pcb for internet protocol implementation. 22 * Here are stored pointers to local and foreign host table 23 * entries, local and foreign socket numbers, and pointers 24 * up (to a socket structure) and down (to a protocol-specific) 25 * control block. 26 */ 27 struct inpcb { 28 struct inpcb *inp_next,*inp_prev; 29 /* pointers to other pcb's */ 30 struct inpcb *inp_head; /* pointer back to chain of inpcb's 31 for this protocol */ 32 struct in_addr inp_faddr; /* foreign host table entry */ 33 u_short inp_fport; /* foreign port */ 34 struct in_addr inp_laddr; /* local host table entry */ 35 u_short inp_lport; /* local port */ 36 struct socket *inp_socket; /* back pointer to socket */ 37 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 38 struct route inp_route; /* placeholder for routing entry */ 39 struct mbuf *inp_options; /* IP options */ 40 }; 41 42 #define INPLOOKUP_WILDCARD 1 43 #define INPLOOKUP_SETLOCAL 2 44 45 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 46 47 #ifdef KERNEL 48 struct inpcb *in_pcblookup(); 49 #endif 50