1 /* 2 * Copyright (c) 1982, 1986, 1990 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)in_pcb.h 7.6 (Berkeley) 6/28/90 34 * $Id: in_pcb.h,v 1.3 1993/05/20 03:50:06 cgd Exp $ 35 */ 36 37 #ifndef _NETINET_IN_PCB_H_ 38 #define _NETINET_IN_PCB_H_ 39 40 /* 41 * Common structure pcb for internet protocol implementation. 42 * Here are stored pointers to local and foreign host table 43 * entries, local and foreign socket numbers, and pointers 44 * up (to a socket structure) and down (to a protocol-specific) 45 * control block. 46 */ 47 struct inpcb { 48 struct inpcb *inp_next,*inp_prev; 49 /* pointers to other pcb's */ 50 struct inpcb *inp_head; /* pointer back to chain of inpcb's 51 for this protocol */ 52 struct in_addr inp_faddr; /* foreign host table entry */ 53 u_short inp_fport; /* foreign port */ 54 struct in_addr inp_laddr; /* local host table entry */ 55 u_short inp_lport; /* local port */ 56 struct socket *inp_socket; /* back pointer to socket */ 57 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 58 struct route inp_route; /* placeholder for routing entry */ 59 int inp_flags; /* generic IP/datagram flags */ 60 struct ip inp_ip; /* header prototype; should have more */ 61 struct mbuf *inp_options; /* IP options */ 62 }; 63 64 /* flags in inp_flags: */ 65 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 66 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 67 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 68 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) 69 70 #ifdef sotorawcb 71 /* 72 * Common structure pcb for raw internet protocol access. 73 * Here are internet specific extensions to the raw control block, 74 * and space is allocated to the necessary sockaddrs. 75 */ 76 struct raw_inpcb { 77 struct rawcb rinp_rcb; /* common control block prefix */ 78 struct mbuf *rinp_options; /* IP options */ 79 int rinp_flags; /* flags, e.g. raw sockopts */ 80 #define RINPF_HDRINCL 0x1 /* user supplies entire IP header */ 81 struct sockaddr_in rinp_faddr; /* foreign address */ 82 struct sockaddr_in rinp_laddr; /* local address */ 83 struct route rinp_route; /* placeholder for routing entry */ 84 }; 85 #endif 86 87 #define INPLOOKUP_WILDCARD 1 88 #define INPLOOKUP_SETLOCAL 2 89 90 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 91 #define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb) 92 93 #ifdef KERNEL 94 struct inpcb *in_pcblookup(); 95 #endif 96 97 #endif /* !_NETINET_IN_PCB_H_ */ 98