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 */ 35 36 /* 37 * Common structure pcb for internet protocol implementation. 38 * Here are stored pointers to local and foreign host table 39 * entries, local and foreign socket numbers, and pointers 40 * up (to a socket structure) and down (to a protocol-specific) 41 * control block. 42 */ 43 struct inpcb { 44 struct inpcb *inp_next,*inp_prev; 45 /* pointers to other pcb's */ 46 struct inpcb *inp_head; /* pointer back to chain of inpcb's 47 for this protocol */ 48 struct in_addr inp_faddr; /* foreign host table entry */ 49 u_short inp_fport; /* foreign port */ 50 struct in_addr inp_laddr; /* local host table entry */ 51 u_short inp_lport; /* local port */ 52 struct socket *inp_socket; /* back pointer to socket */ 53 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 54 struct route inp_route; /* placeholder for routing entry */ 55 int inp_flags; /* generic IP/datagram flags */ 56 struct ip inp_ip; /* header prototype; should have more */ 57 struct mbuf *inp_options; /* IP options */ 58 struct ip_moptions *inp_moptions; /* IP multicast options */ 59 }; 60 61 /* flags in inp_flags: */ 62 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 63 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 64 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 65 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) 66 #define INP_HDRINCL 0x08 /* user supplies entire IP header */ 67 68 #define INPLOOKUP_WILDCARD 1 69 #define INPLOOKUP_SETLOCAL 2 70 71 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 72 73 #ifdef KERNEL 74 void in_losing __P((struct inpcb *)); 75 int in_pcballoc __P((struct socket *, struct inpcb *)); 76 int in_pcbbind __P((struct inpcb *, struct mbuf *)); 77 int in_pcbconnect __P((struct inpcb *, struct mbuf *)); 78 void in_pcbdetach __P((struct inpcb *)); 79 void in_pcbdisconnect __P((struct inpcb *)); 80 struct inpcb * 81 in_pcblookup __P((struct inpcb *, 82 struct in_addr, u_int, struct in_addr, u_int, int)); 83 void in_pcbnotify __P((struct inpcb *, struct sockaddr *, 84 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); 85 void in_rtchange __P((struct inpcb *, int)); 86 void in_setpeeraddr __P((struct inpcb *, struct mbuf *)); 87 void in_setsockaddr __P((struct inpcb *, struct mbuf *)); 88 #endif 89