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 1.20 1997/04/03 05:14:41 davidg Exp $ 35 */ 36 37 #ifndef _NETINET_IN_PCB_H_ 38 #define _NETINET_IN_PCB_H_ 39 40 #include <sys/queue.h> 41 42 /* 43 * Common structure pcb for internet protocol implementation. 44 * Here are stored pointers to local and foreign host table 45 * entries, local and foreign socket numbers, and pointers 46 * up (to a socket structure) and down (to a protocol-specific) 47 * control block. 48 */ 49 LIST_HEAD(inpcbhead, inpcb); 50 51 struct inpcb { 52 LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ 53 LIST_ENTRY(inpcb) inp_hash; /* hash list */ 54 struct inpcbinfo *inp_pcbinfo; /* PCB list info */ 55 struct in_addr inp_faddr; /* foreign host table entry */ 56 struct in_addr inp_laddr; /* local host table entry */ 57 u_short inp_fport; /* foreign port */ 58 u_short inp_lport; /* local port */ 59 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 60 struct socket *inp_socket; /* back pointer to socket */ 61 struct mbuf *inp_options; /* IP options */ 62 struct route inp_route; /* placeholder for routing entry */ 63 int inp_flags; /* generic IP/datagram flags */ 64 u_char inp_ip_tos; /* type of service proto */ 65 u_char inp_ip_ttl; /* time to live proto */ 66 u_char inp_ip_p; /* protocol proto */ 67 u_char pad[1]; /* alignment */ 68 struct ip_moptions *inp_moptions; /* IP multicast options */ 69 #if 0 /* Someday, perhaps... */ 70 struct ip inp_ip; /* header prototype; should have more */ 71 #endif 72 }; 73 74 struct inpcbinfo { 75 struct inpcbhead *listhead; 76 struct inpcbhead *hashbase; 77 unsigned long hashmask; 78 unsigned short lastport; 79 unsigned short lastlow; 80 unsigned short lasthi; 81 }; 82 83 #define INP_PCBHASH(faddr, lport, fport, mask) \ 84 (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask)) 85 86 /* flags in inp_flags: */ 87 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 88 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 89 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 90 #define INP_HDRINCL 0x08 /* user supplies entire IP header */ 91 #define INP_HIGHPORT 0x10 /* user wants "high" port binding */ 92 #define INP_LOWPORT 0x20 /* user wants "low" port binding */ 93 #define INP_ANONPORT 0x40 /* port chosen for user */ 94 #define INP_RECVIF 0x80 /* receive incoming interface */ 95 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ 96 INP_RECVIF) 97 98 #define INPLOOKUP_WILDCARD 1 99 100 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 101 102 #ifdef KERNEL 103 void in_losing __P((struct inpcb *)); 104 int in_pcballoc __P((struct socket *, struct inpcbinfo *, struct proc *)); 105 int in_pcbbind __P((struct inpcb *, struct mbuf *, struct proc *)); 106 int in_pcbconnect __P((struct inpcb *, struct mbuf *, struct proc *)); 107 void in_pcbdetach __P((struct inpcb *)); 108 void in_pcbdisconnect __P((struct inpcb *)); 109 int in_pcbladdr __P((struct inpcb *, struct mbuf *, 110 struct sockaddr_in **)); 111 struct inpcb * 112 in_pcblookup __P((struct inpcbinfo *, 113 struct in_addr, u_int, struct in_addr, u_int, int)); 114 struct inpcb * 115 in_pcblookuphash __P((struct inpcbinfo *, 116 struct in_addr, u_int, struct in_addr, u_int, int)); 117 void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *, 118 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); 119 void in_pcbrehash __P((struct inpcb *)); 120 int in_setpeeraddr __P((struct socket *so, struct mbuf *nam)); 121 int in_setsockaddr __P((struct socket *so, struct mbuf *nam)); 122 #endif 123 124 #endif 125