/* * Copyright (c) 1982, 1986, 1990 Regents of the University of California. * All rights reserved. * * Redistribution is only permitted until one year after the first shipment * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and * binary forms are permitted provided that: (1) source distributions retain * this entire copyright notice and comment, and (2) distributions including * binaries display the following acknowledgement: This product includes * software developed by the University of California, Berkeley and its * contributors'' in the documentation or other materials provided with the * distribution and in all advertising materials mentioning features or use * of this software. Neither the name of the University nor the names of * its contributors may 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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#)in_pcb.h 7.6 (Berkeley) 6/28/90 */ /* * 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 */ int inp_flags; /* generic IP/datagram flags */ struct ip inp_ip; /* header prototype; should have more */ struct mbuf *inp_options; /* IP options */ }; /* flags in inp_flags: */ #define INP_RECVOPTS 0x01 /* receive incoming IP options */ #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) #ifdef sotorawcb /* * Common structure pcb for raw internet protocol access. * Here are internet specific extensions to the raw control block, * and space is allocated to the necessary sockaddrs. */ struct raw_inpcb { struct rawcb rinp_rcb; /* common control block prefix */ struct mbuf *rinp_options; /* IP options */ int rinp_flags; /* flags, e.g. raw sockopts */ #define RINPF_HDRINCL 0x1 /* user supplies entire IP header */ struct sockaddr_in rinp_faddr; /* foreign address */ struct sockaddr_in rinp_laddr; /* local address */ struct route rinp_route; /* placeholder for routing entry */ }; #endif #define INPLOOKUP_WILDCARD 1 #define INPLOOKUP_SETLOCAL 2 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) #define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb) #ifdef KERNEL struct inpcb *in_pcblookup(); #endif