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57bf258e3d
socket addresses in mbufs. (Socket buffers are the one exception.) A number of kernel APIs needed to get fixed in order to make this happen. Also, fix three protocol families which kept PCBs in mbufs to not malloc them instead. Delete some old compatibility cruft while we're at it, and add some new routines in the in_cksum family.
126 lines
5.2 KiB
C
126 lines
5.2 KiB
C
/*
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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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* $Id: in_pcb.h,v 1.21 1997/04/27 20:01:04 wollman Exp $
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*/
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#ifndef _NETINET_IN_PCB_H_
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#define _NETINET_IN_PCB_H_
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#include <sys/queue.h>
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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; /* PCB list info */
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struct in_addr inp_faddr; /* foreign host table entry */
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struct in_addr inp_laddr; /* local host table entry */
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u_short inp_fport; /* foreign port */
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u_short inp_lport; /* local port */
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caddr_t inp_ppcb; /* pointer to per-protocol pcb */
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struct socket *inp_socket; /* back pointer to socket */
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struct mbuf *inp_options; /* IP options */
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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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u_char inp_ip_tos; /* type of service proto */
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u_char inp_ip_ttl; /* time to live proto */
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u_char inp_ip_p; /* protocol proto */
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u_char pad[1]; /* alignment */
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struct ip_moptions *inp_moptions; /* IP multicast options */
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#if 0 /* Someday, perhaps... */
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struct ip inp_ip; /* header prototype; should have more */
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#endif
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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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unsigned short lastlow;
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unsigned short lasthi;
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};
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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_HDRINCL 0x08 /* user supplies entire IP header */
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#define INP_HIGHPORT 0x10 /* user wants "high" port binding */
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#define INP_LOWPORT 0x20 /* user wants "low" port binding */
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#define INP_ANONPORT 0x40 /* port chosen for user */
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#define INP_RECVIF 0x80 /* receive incoming interface */
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#define INP_MTUDISC 0x100 /* user can do MTU discovery */
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#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
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INP_RECVIF)
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#define INPLOOKUP_WILDCARD 1
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#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
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#ifdef KERNEL
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void in_losing __P((struct inpcb *));
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int in_pcballoc __P((struct socket *, struct inpcbinfo *, struct proc *));
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int in_pcbbind __P((struct inpcb *, struct sockaddr *, struct proc *));
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int in_pcbconnect __P((struct inpcb *, struct sockaddr *, struct proc *));
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void in_pcbdetach __P((struct inpcb *));
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void in_pcbdisconnect __P((struct inpcb *));
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int in_pcbladdr __P((struct inpcb *, struct sockaddr *,
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struct sockaddr_in **));
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struct inpcb *
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in_pcblookup __P((struct inpcbinfo *,
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struct in_addr, u_int, struct in_addr, u_int, int));
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struct inpcb *
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in_pcblookuphash __P((struct inpcbinfo *,
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struct in_addr, u_int, struct in_addr, u_int, int));
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void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *,
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u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
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void in_pcbrehash __P((struct inpcb *));
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int in_setpeeraddr __P((struct socket *so, struct sockaddr **nam));
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int in_setsockaddr __P((struct socket *so, struct sockaddr **nam));
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#endif
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#endif
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