1 /* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. 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 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 34 * $Id: in_pcb.h,v 1.8 1995/04/10 00:43:18 davidg 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 LIST_HEAD(inpcbhead, inpcb); 48 49 struct inpcb { 50 LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ 51 LIST_ENTRY(inpcb) inp_hash; /* hash list */ 52 struct inpcbinfo *inp_pcbinfo; 53 struct in_addr inp_faddr; /* foreign host table entry */ 54 u_short inp_fport; /* foreign port */ 55 struct in_addr inp_laddr; /* local host table entry */ 56 u_short inp_lport; /* local port */ 57 struct socket *inp_socket; /* back pointer to socket */ 58 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 59 struct route inp_route; /* placeholder for routing entry */ 60 int inp_flags; /* generic IP/datagram flags */ 61 struct ip inp_ip; /* header prototype; should have more */ 62 struct mbuf *inp_options; /* IP options */ 63 struct ip_moptions *inp_moptions; /* IP multicast options */ 64 }; 65 66 struct inpcbinfo { 67 struct inpcbhead *listhead; 68 struct inpcbhead *hashbase; 69 unsigned long hashsize; 70 unsigned short lastport; 71 }; 72 73 /* flags in inp_flags: */ 74 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 75 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 76 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 77 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) 78 #define INP_HDRINCL 0x08 /* user supplies entire IP header */ 79 80 #define INPLOOKUP_WILDCARD 1 81 82 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 83 84 #ifdef KERNEL 85 void in_losing __P((struct inpcb *)); 86 int in_pcballoc __P((struct socket *, struct inpcbinfo *)); 87 int in_pcbbind __P((struct inpcb *, struct mbuf *)); 88 int in_pcbconnect __P((struct inpcb *, struct mbuf *)); 89 void in_pcbdetach __P((struct inpcb *)); 90 void in_pcbdisconnect __P((struct inpcb *)); 91 int in_pcbladdr __P((struct inpcb *, struct mbuf *, 92 struct sockaddr_in **)); 93 struct inpcb * 94 in_pcblookup __P((struct inpcbhead *, 95 struct in_addr, u_int, struct in_addr, u_int, int)); 96 struct inpcb * 97 in_pcblookuphash __P((struct inpcbinfo *, 98 struct in_addr, u_int, struct in_addr, u_int)); 99 void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *, 100 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); 101 void in_pcbrehash __P((struct inpcb *)); 102 void in_setpeeraddr __P((struct inpcb *, struct mbuf *)); 103 void in_setsockaddr __P((struct inpcb *, struct mbuf *)); 104 #endif 105 106 #endif 107