153 lines
6.0 KiB
C
153 lines
6.0 KiB
C
/* in_pcb.h - internet protocol control block header file */
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/* Copyright 1984-1996 Wind River Systems, Inc. */
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/*
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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modification history
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--------------------
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01d,10oct01,rae merge from truestack, add multicast vif to ip_moptions
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01c,05oct97,vin moved ip_moptions field from ip_var.h
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01b,31mar97,vin added pcb hashing functions.
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01a,03mar96,vin created from BSD4.4 stuff,integrated with 02h of in_pcb.h
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*/
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#ifndef __INCin_pcbh
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#define __INCin_pcbh
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "netinet/ip.h"
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#include "net/unixLib.h"
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 1 /* tell gcc960 not to optimize alignments */
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#endif /* CPU_FAMILY==I960 */
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/*
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* Structure attached to inpcb.ip_moptions and
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* passed to ip_output when IP multicast options are in use.
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*/
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struct ip_moptions {
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struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
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u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
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u_char imo_multicast_loop; /* 1 => hear sends if a member */
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u_short imo_num_memberships;/* no. memberships this socket */
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struct mBlk * pInmMblk; /* chain of multicast addrs */
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u_long imo_multicast_vif; /* the multicast vif to send on */
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};
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/*
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* Common structure pcb for internet protocol implementation.
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* Here are stored pointers to local and foreign host table
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* entries, local and foreign socket numbers, and pointers
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* up (to a socket structure) and down (to a protocol-specific)
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* control block.
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*/
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LIST_HEAD(inpcbhead, inpcb);
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struct inpcb {
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LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
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LIST_ENTRY(inpcb) inp_hash; /* hash list */
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struct inpcbinfo *inp_pcbinfo;
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struct in_addr inp_faddr; /* foreign host table entry */
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u_short inp_fport; /* foreign port */
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struct in_addr inp_laddr; /* local host table entry */
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u_short inp_lport; /* local port */
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struct socket *inp_socket; /* back pointer to socket */
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caddr_t inp_ppcb; /* pointer to per-protocol pcb */
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struct route inp_route; /* placeholder for routing entry */
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int inp_flags; /* generic IP/datagram flags */
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struct ip inp_ip; /* header prototype; should have more */
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struct mbuf *inp_options; /* IP options */
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struct ip_moptions *inp_moptions; /* IP multicast options */
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};
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struct inpcbinfo {
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struct inpcbhead *listhead;
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struct inpcbhead *hashbase;
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unsigned long hashmask;
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unsigned short lastport;
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};
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 0 /* turn off alignment requirement */
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#endif /* CPU_FAMILY==I960 */
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#define INP_PCBHASH(faddr, lport, fport, mask) \
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(((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask))
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/* flags in inp_flags: */
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#define INP_RECVOPTS 0x01 /* receive incoming IP options */
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#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
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#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
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#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
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#define INP_HDRINCL 0x08 /* user supplies entire IP header */
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#define INPLOOKUP_WILDCARD 1
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#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
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extern void in_losing (struct inpcb *);
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extern int in_pcballoc (struct socket *, struct inpcbinfo *);
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extern int in_pcbbind (struct inpcb *, struct mbuf *);
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extern int in_pcbconnect (struct inpcb *, struct mbuf *);
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extern void in_pcbdetach (struct inpcb *);
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extern void in_pcbdisconnect (struct inpcb *);
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extern void in_pcbinshash (struct inpcb *);
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extern int in_pcbladdr (struct inpcb *, struct mbuf *, struct sockaddr_in **);
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extern struct inpcb * in_pcblookup (struct inpcbinfo *, struct in_addr, u_int,
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struct in_addr, u_int, int);
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extern struct inpcb * in_pcblookuphash (struct inpcbinfo *, struct in_addr,
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u_int, struct in_addr, u_int, int);
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extern void in_pcbnotify (struct inpcbhead *, struct sockaddr *, u_int,
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struct in_addr, u_int, int,
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void (*)(struct inpcb *, int));
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extern void in_pcbrehash (struct inpcb *);
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extern void in_rtchange (struct inpcb *, int);
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extern void in_setpeeraddr (struct inpcb *, struct mbuf *);
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extern void in_setsockaddr (struct inpcb *, struct mbuf *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCin_pcbh */
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