in_pcb.h revision 32821
1272343Sngie/* 2272343Sngie * Copyright (c) 1982, 1986, 1990, 1993 3272343Sngie * The Regents of the University of California. All rights reserved. 4272343Sngie * 5272343Sngie * Redistribution and use in source and binary forms, with or without 6272343Sngie * modification, are permitted provided that the following conditions 7272343Sngie * are met: 8272343Sngie * 1. Redistributions of source code must retain the above copyright 9272343Sngie * notice, this list of conditions and the following disclaimer. 10272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 11272343Sngie * notice, this list of conditions and the following disclaimer in the 12272343Sngie * documentation and/or other materials provided with the distribution. 13272343Sngie * 3. All advertising materials mentioning features or use of this software 14272343Sngie * must display the following acknowledgement: 15272343Sngie * This product includes software developed by the University of 16272343Sngie * California, Berkeley and its contributors. 17272343Sngie * 4. Neither the name of the University nor the names of its contributors 18272343Sngie * may be used to endorse or promote products derived from this software 19272343Sngie * without specific prior written permission. 20272343Sngie * 21272343Sngie * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22272343Sngie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23272343Sngie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24272343Sngie * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25272343Sngie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26272343Sngie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27272343Sngie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28272343Sngie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29272343Sngie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30272343Sngie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31272343Sngie * SUCH DAMAGE. 32272343Sngie * 33272343Sngie * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 34272343Sngie * $Id: in_pcb.h,v 1.22 1997/08/16 19:15:36 wollman Exp $ 35272343Sngie */ 36272343Sngie 37272343Sngie#ifndef _NETINET_IN_PCB_H_ 38272343Sngie#define _NETINET_IN_PCB_H_ 39272343Sngie 40272343Sngie#include <sys/queue.h> 41272343Sngie 42272343Sngie/* 43272343Sngie * Common structure pcb for internet protocol implementation. 44272343Sngie * Here are stored pointers to local and foreign host table 45272343Sngie * entries, local and foreign socket numbers, and pointers 46272343Sngie * up (to a socket structure) and down (to a protocol-specific) 47272343Sngie * control block. 48272343Sngie */ 49272343SngieLIST_HEAD(inpcbhead, inpcb); 50272343SngieLIST_HEAD(inpcbporthead, inpcbport); 51272343Sngie 52272343Sngiestruct inpcb { 53272343Sngie LIST_ENTRY(inpcb) inp_hash; /* hash list */ 54272343Sngie struct in_addr inp_faddr; /* foreign host table entry */ 55272343Sngie struct in_addr inp_laddr; /* local host table entry */ 56272343Sngie u_short inp_fport; /* foreign port */ 57272343Sngie u_short inp_lport; /* local port */ 58272343Sngie LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ 59272343Sngie caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 60272343Sngie struct inpcbinfo *inp_pcbinfo; /* PCB list info */ 61272343Sngie struct socket *inp_socket; /* back pointer to socket */ 62272343Sngie struct mbuf *inp_options; /* IP options */ 63272343Sngie struct route inp_route; /* placeholder for routing entry */ 64272343Sngie int inp_flags; /* generic IP/datagram flags */ 65272343Sngie u_char inp_ip_tos; /* type of service proto */ 66272343Sngie u_char inp_ip_ttl; /* time to live proto */ 67272343Sngie u_char inp_ip_p; /* protocol proto */ 68272343Sngie u_char pad[1]; /* alignment */ 69272343Sngie struct ip_moptions *inp_moptions; /* IP multicast options */ 70272343Sngie LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */ 71272343Sngie struct inpcbport *inp_phd; /* head of list for this PCB's local port */ 72272343Sngie}; 73272343Sngie 74272343Sngiestruct inpcbport { 75272343Sngie LIST_ENTRY(inpcbport) phd_hash; 76272343Sngie struct inpcbhead phd_pcblist; 77272343Sngie u_short phd_port; 78272343Sngie}; 79272343Sngie 80272343Sngiestruct inpcbinfo { 81272343Sngie struct inpcbhead *hashbase; 82272343Sngie unsigned long hashmask; 83272343Sngie struct inpcbporthead *porthashbase; 84272343Sngie unsigned long porthashmask; 85272343Sngie struct inpcbhead *listhead; 86272343Sngie unsigned short lastport; 87272343Sngie unsigned short lastlow; 88272343Sngie unsigned short lasthi; 89272343Sngie}; 90272343Sngie 91272343Sngie#define INP_PCBHASH(faddr, lport, fport, mask) \ 92272343Sngie (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) 93272343Sngie#define INP_PCBPORTHASH(lport, mask) \ 94272343Sngie (ntohs((lport)) & (mask)) 95272343Sngie 96272343Sngie/* flags in inp_flags: */ 97272343Sngie#define INP_RECVOPTS 0x01 /* receive incoming IP options */ 98272343Sngie#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 99272343Sngie#define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 100272343Sngie#define INP_HDRINCL 0x08 /* user supplies entire IP header */ 101272343Sngie#define INP_HIGHPORT 0x10 /* user wants "high" port binding */ 102272343Sngie#define INP_LOWPORT 0x20 /* user wants "low" port binding */ 103272343Sngie#define INP_ANONPORT 0x40 /* port chosen for user */ 104272343Sngie#define INP_RECVIF 0x80 /* receive incoming interface */ 105272343Sngie#define INP_MTUDISC 0x100 /* user can do MTU discovery */ 106272343Sngie#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ 107272343Sngie INP_RECVIF) 108272343Sngie 109272343Sngie#define INPLOOKUP_WILDCARD 1 110272343Sngie 111272343Sngie#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 112272343Sngie 113272343Sngie#ifdef KERNEL 114272343Sngievoid in_losing __P((struct inpcb *)); 115272343Sngieint in_pcballoc __P((struct socket *, struct inpcbinfo *, struct proc *)); 116272343Sngieint in_pcbbind __P((struct inpcb *, struct sockaddr *, struct proc *)); 117272343Sngieint in_pcbconnect __P((struct inpcb *, struct sockaddr *, struct proc *)); 118272343Sngievoid in_pcbdetach __P((struct inpcb *)); 119272343Sngievoid in_pcbdisconnect __P((struct inpcb *)); 120272343Sngieint in_pcbinshash __P((struct inpcb *)); 121272343Sngieint in_pcbladdr __P((struct inpcb *, struct sockaddr *, 122272343Sngie struct sockaddr_in **)); 123272343Sngiestruct inpcb * 124272343Sngie in_pcblookup_local __P((struct inpcbinfo *, 125272343Sngie struct in_addr, u_int, int)); 126272343Sngiestruct inpcb * 127272343Sngie in_pcblookup_hash __P((struct inpcbinfo *, 128272343Sngie struct in_addr, u_int, struct in_addr, u_int, int)); 129272343Sngievoid in_pcbnotify __P((struct inpcbhead *, struct sockaddr *, 130272343Sngie u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); 131272343Sngievoid in_pcbrehash __P((struct inpcb *)); 132272343Sngieint in_setpeeraddr __P((struct socket *so, struct sockaddr **nam)); 133272343Sngieint in_setsockaddr __P((struct socket *so, struct sockaddr **nam)); 134272343Sngie#endif 135272343Sngie 136272343Sngie#endif 137272343Sngie