| 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 this notice is preserved and that due credit is given |
| 7 | * to the University of California at Berkeley. The name of the University |
| 8 | * may not be used to endorse or promote products derived from this |
| 9 | * software without specific prior written permission. This software |
| 10 | * is provided ``as is'' without express or implied warranty. |
| 11 | * |
| 12 | * @(#)in_pcb.h 7.2 (Berkeley) %G% |
| 13 | */ |
| 14 | |
| 15 | /* |
| 16 | * Common structure pcb for internet protocol implementation. |
| 17 | * Here are stored pointers to local and foreign host table |
| 18 | * entries, local and foreign socket numbers, and pointers |
| 19 | * up (to a socket structure) and down (to a protocol-specific) |
| 20 | * control block. |
| 21 | */ |
| 22 | struct inpcb { |
| 23 | struct inpcb *inp_next,*inp_prev; |
| 24 | /* pointers to other pcb's */ |
| 25 | struct inpcb *inp_head; /* pointer back to chain of inpcb's |
| 26 | for this protocol */ |
| 27 | struct in_addr inp_faddr; /* foreign host table entry */ |
| 28 | u_short inp_fport; /* foreign port */ |
| 29 | struct in_addr inp_laddr; /* local host table entry */ |
| 30 | u_short inp_lport; /* local port */ |
| 31 | struct socket *inp_socket; /* back pointer to socket */ |
| 32 | caddr_t inp_ppcb; /* pointer to per-protocol pcb */ |
| 33 | struct route inp_route; /* placeholder for routing entry */ |
| 34 | struct mbuf *inp_options; /* IP options */ |
| 35 | }; |
| 36 | |
| 37 | #define INPLOOKUP_WILDCARD 1 |
| 38 | #define INPLOOKUP_SETLOCAL 2 |
| 39 | |
| 40 | #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) |
| 41 | |
| 42 | #ifdef KERNEL |
| 43 | struct inpcb *in_pcblookup(); |
| 44 | #endif |