0,0 → 1,100 |
/*!\file netinet/in_pcb.h |
* Internal IP structures. |
*/ |
|
/* |
* Copyright (c) 1982, 1986, 1990, 1993 |
* The Regents of the University of California. All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* California, Berkeley and its contributors. |
* 4. Neither the name of the University nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* |
* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 |
* $Id: in_pcb.h,v 1.14.2.2 1997/03/03 09:24:37 davidg Exp $ |
*/ |
|
#ifndef __NETINET_IN_PCB_H |
#define __NETINET_IN_PCB_H |
|
#include <sys/queue.h> |
|
/* |
* Common structure pcb for internet protocol implementation. |
* Here are stored pointers to local and foreign host table |
* entries, local and foreign socket numbers, and pointers |
* up (to a socket structure) and down (to a protocol-specific) |
* control block. |
*/ |
LIST_HEAD(inpcbhead, inpcb); |
|
struct inpcb { |
LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ |
LIST_ENTRY(inpcb) inp_hash; /* hash list */ |
struct inpcbinfo *inp_pcbinfo; |
struct in_addr inp_faddr; /* foreign host table entry */ |
u_short inp_fport; /* foreign port */ |
struct in_addr inp_laddr; /* local host table entry */ |
u_short inp_lport; /* local port */ |
struct socket *inp_socket; /* back pointer to socket */ |
caddr_t inp_ppcb; /* pointer to per-protocol pcb */ |
struct route inp_route; /* placeholder for routing entry */ |
int inp_flags; /* generic IP/datagram flags */ |
struct ip inp_ip; /* header prototype; should have more */ |
struct mbuf *inp_options; /* IP options */ |
struct ip_moptions *inp_moptions; /* IP multicast options */ |
}; |
|
struct inpcbinfo { |
struct inpcbhead *listhead; |
struct inpcbhead *hashbase; |
unsigned long hashmask; |
unsigned short lastport; |
unsigned short lastlow; |
unsigned short lasthi; |
}; |
|
#define INP_PCBHASH(faddr, lport, fport, mask) \ |
(((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask)) |
|
/* flags in inp_flags: */ |
#define INP_RECVOPTS 0x01 /* receive incoming IP options */ |
#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ |
#define INP_RECVDSTADDR 0x04 /* receive IP dst address */ |
#define INP_HDRINCL 0x08 /* user supplies entire IP header */ |
#define INP_HIGHPORT 0x10 /* user wants "high" port binding */ |
#define INP_LOWPORT 0x20 /* user wants "low" port binding */ |
#define INP_ANONPORT 0x40 /* port chosen for user */ |
#define INP_RECVIF 0x80 /* receive incoming interface */ |
#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ |
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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#endif |