92 lines
3.9 KiB
C
92 lines
3.9 KiB
C
/*
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* Copyright (c) 1982, 1986, 1990 Regents of the University of California.
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* 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 7.6 (Berkeley) 6/28/90
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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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struct inpcb {
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struct inpcb *inp_next,*inp_prev;
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/* pointers to other pcb's */
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struct inpcb *inp_head; /* pointer back to chain of inpcb's
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for this protocol */
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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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};
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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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#ifdef sotorawcb
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/*
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* Common structure pcb for raw internet protocol access.
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* Here are internet specific extensions to the raw control block,
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* and space is allocated to the necessary sockaddrs.
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*/
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struct raw_inpcb {
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struct rawcb rinp_rcb; /* common control block prefix */
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struct mbuf *rinp_options; /* IP options */
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int rinp_flags; /* flags, e.g. raw sockopts */
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#define RINPF_HDRINCL 0x1 /* user supplies entire IP header */
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struct sockaddr_in rinp_faddr; /* foreign address */
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struct sockaddr_in rinp_laddr; /* local address */
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struct route rinp_route; /* placeholder for routing entry */
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};
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#endif
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#define INPLOOKUP_WILDCARD 1
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#define INPLOOKUP_SETLOCAL 2
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#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
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#define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb)
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#ifdef KERNEL
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struct inpcb *in_pcblookup();
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#endif
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