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 7.4 (Berkeley) 04/22/89 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 #ifdef sotorawcb 43 /* 44 * Common structure pcb for raw internet protocol access. 45 * Here are internet specific extensions to the raw control block, 46 * and space is allocated to the necessary sockaddrs. 47 */ 48 struct raw_inpcb { 49 struct rawcb rinp_rcb; /* common control block prefix */ 50 struct mbuf *rinp_options; /* IP options */ 51 int rinp_flags; /* flags, e.g. raw sockopts */ 52 #define RINPF_HDRINCL 0x1 /* user supplies entire IP header */ 53 struct sockaddr_in rinp_faddr; /* foreign address */ 54 struct sockaddr_in rinp_laddr; /* local address */ 55 struct route rinp_route; /* placeholder for routing entry */ 56 }; 57 #endif 58 59 #define INPLOOKUP_WILDCARD 1 60 #define INPLOOKUP_SETLOCAL 2 61 62 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 63 #define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb) 64 65 #ifdef KERNEL 66 struct inpcb *in_pcblookup(); 67 #endif 68