1 /* $NetBSD: in_pcb.h,v 1.7 1994/06/29 06:38:08 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 36 */ 37 38 /* 39 * Common structure pcb for internet protocol implementation. 40 * Here are stored pointers to local and foreign host table 41 * entries, local and foreign socket numbers, and pointers 42 * up (to a socket structure) and down (to a protocol-specific) 43 * control block. 44 */ 45 struct inpcb { 46 struct inpcb *inp_next,*inp_prev; 47 /* pointers to other pcb's */ 48 struct inpcb *inp_head; /* pointer back to chain of inpcb's 49 for this protocol */ 50 struct in_addr inp_faddr; /* foreign host table entry */ 51 u_short inp_fport; /* foreign port */ 52 struct in_addr inp_laddr; /* local host table entry */ 53 u_short inp_lport; /* local port */ 54 struct socket *inp_socket; /* back pointer to socket */ 55 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 56 struct route inp_route; /* placeholder for routing entry */ 57 int inp_flags; /* generic IP/datagram flags */ 58 struct ip inp_ip; /* header prototype; should have more */ 59 struct mbuf *inp_options; /* IP options */ 60 struct ip_moptions *inp_moptions; /* IP multicast options */ 61 }; 62 63 /* flags in inp_flags: */ 64 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 65 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 66 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 67 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) 68 #define INP_HDRINCL 0x08 /* user supplies entire IP header */ 69 70 #define INPLOOKUP_WILDCARD 1 71 #define INPLOOKUP_SETLOCAL 2 72 73 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 74 75 #ifdef KERNEL 76 int in_losing __P((struct inpcb *)); 77 int in_pcballoc __P((struct socket *, struct inpcb *)); 78 int in_pcbbind __P((struct inpcb *, struct mbuf *)); 79 int in_pcbconnect __P((struct inpcb *, struct mbuf *)); 80 int in_pcbdetach __P((struct inpcb *)); 81 int in_pcbdisconnect __P((struct inpcb *)); 82 struct inpcb * 83 in_pcblookup __P((struct inpcb *, 84 struct in_addr, u_int, struct in_addr, u_int, int)); 85 int in_pcbnotify __P((struct inpcb *, struct sockaddr *, 86 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); 87 void in_rtchange __P((struct inpcb *, int)); 88 int in_setpeeraddr __P((struct inpcb *, struct mbuf *)); 89 int in_setsockaddr __P((struct inpcb *, struct mbuf *)); 90 #endif 91