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in_pcb.h revision 1.35 
      1 /*	$NetBSD: in_pcb.h,v 1.35 2003/09/04 09:16:58 itojun Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the project nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1982, 1986, 1990, 1993
     34  *	The Regents of the University of California.  All rights reserved.
     35  *
     36  * Redistribution and use in source and binary forms, with or without
     37  * modification, are permitted provided that the following conditions
     38  * are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above copyright
     42  *    notice, this list of conditions and the following disclaimer in the
     43  *    documentation and/or other materials provided with the distribution.
     44  * 3. Neither the name of the University nor the names of its contributors
     45  *    may be used to endorse or promote products derived from this software
     46  *    without specific prior written permission.
     47  *
     48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     58  * SUCH DAMAGE.
     59  *
     60  *	@(#)in_pcb.h	8.1 (Berkeley) 6/10/93
     61  */
     62 
     63 #ifndef _NETINET_IN_PCB_H_
     64 #define _NETINET_IN_PCB_H_
     65 
     66 #include <sys/queue.h>
     67 #include <netinet/in_pcb_hdr.h>
     68 
     69 /*
     70  * Common structure pcb for internet protocol implementation.
     71  * Here are stored pointers to local and foreign host table
     72  * entries, local and foreign socket numbers, and pointers
     73  * up (to a socket structure) and down (to a protocol-specific)
     74  * control block.
     75  */
     76 struct inpcb {
     77 	struct inpcb_hdr inp_head;
     78 #define inp_hash	inp_head.inph_hash
     79 #define inp_queue	inp_head.inph_queue
     80 #define inp_af		inp_head.inph_af
     81 #define inp_ppcb	inp_head.inph_ppcb
     82 #define inp_state	inp_head.inph_state
     83 #define inp_socket	inp_head.inph_socket
     84 #define inp_table	inp_head.inph_table
     85 #define inp_sp		inp_head.inph_sp
     86 	struct	  route inp_route;	/* placeholder for routing entry */
     87 	u_int16_t inp_fport;		/* foreign port */
     88 	u_int16_t inp_lport;		/* local port */
     89 	int	  inp_flags;		/* generic IP/datagram flags */
     90 	struct	  ip inp_ip;		/* header prototype; should have more */
     91 	struct	  mbuf *inp_options;	/* IP options */
     92 	struct	  ip_moptions *inp_moptions; /* IP multicast options */
     93 	int	  inp_errormtu;		/* MTU of last xmit status = EMSGSIZE */
     94 	LIST_ENTRY(inpcb) inp_ialink;
     95 	struct	in_ifaddr *inp_ia;	/* in_ifaddr which laddr is bound */
     96 };
     97 
     98 #define	inp_faddr	inp_ip.ip_dst
     99 #define	inp_laddr	inp_ip.ip_src
    100 
    101 /* flags in inp_flags: */
    102 #define	INP_RECVOPTS		0x01	/* receive incoming IP options */
    103 #define	INP_RECVRETOPTS		0x02	/* receive IP options for reply */
    104 #define	INP_RECVDSTADDR		0x04	/* receive IP dst address */
    105 #define	INP_HDRINCL		0x08	/* user supplies entire IP header */
    106 #define	INP_HIGHPORT		0x10	/* (unused; FreeBSD compat) */
    107 #define	INP_LOWPORT		0x20	/* user wants "low" port binding */
    108 #define	INP_ANONPORT		0x40	/* port chosen for user */
    109 #define	INP_RECVIF		0x80	/* receive incoming interface */
    110 #define	INP_CONTROLOPTS		(INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
    111 				INP_RECVIF)
    112 
    113 #define	sotoinpcb(so)		((struct inpcb *)(so)->so_pcb)
    114 
    115 #ifdef _KERNEL
    116 void	in_losing __P((struct inpcb *));
    117 int	in_pcballoc __P((struct socket *, void *));
    118 int	in_pcbbind __P((void *, struct mbuf *, struct proc *));
    119 int	in_pcbconnect __P((void *, struct mbuf *));
    120 void	in_pcbdetach __P((void *));
    121 void	in_pcbdisconnect __P((void *));
    122 void	in_pcbinit __P((struct inpcbtable *, int, int));
    123 struct inpcb *
    124 	in_pcblookup_port __P((struct inpcbtable *,
    125 	    struct in_addr, u_int, int));
    126 struct inpcb *
    127 	in_pcblookup_bind __P((struct inpcbtable *,
    128 	    struct in_addr, u_int));
    129 struct inpcb *
    130 	in_pcblookup_connect __P((struct inpcbtable *,
    131 	    struct in_addr, u_int, struct in_addr, u_int));
    132 int	in_pcbnotify __P((struct inpcbtable *, struct in_addr, u_int,
    133 	    struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
    134 void	in_pcbnotifyall __P((struct inpcbtable *, struct in_addr, int,
    135 	    void (*)(struct inpcb *, int)));
    136 void	in_pcbpurgeif0 __P((struct inpcbtable *, struct ifnet *));
    137 void	in_pcbpurgeif __P((struct inpcbtable *, struct ifnet *));
    138 void	in_pcbstate __P((struct inpcb *, int));
    139 void	in_rtchange __P((struct inpcb *, int));
    140 void	in_setpeeraddr __P((struct inpcb *, struct mbuf *));
    141 void	in_setsockaddr __P((struct inpcb *, struct mbuf *));
    142 struct rtentry *
    143 	in_pcbrtentry __P((struct inpcb *));
    144 extern struct sockaddr_in *in_selectsrc __P((struct sockaddr_in *,
    145 	struct route *, int, struct ip_moptions *, int *));
    146 #endif
    147 
    148 #endif /* _NETINET_IN_PCB_H_ */
    149