workbench/network/common/include/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * Copytight (c) 2006 Pavel Fedin
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by the University of
  17  *      California, Berkeley and its contributors.
  18  * 4. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  35  * $Id$
  36  */
  37
  38 #ifndef _NETINET_IN_PCB_H_
  39 #define _NETINET_IN_PCB_H_
  40
  41 /*
  42  * Common structure pcb for internet protocol implementation.
  43  * Here are stored pointers to local and foreign host table
  44  * entries, local and foreign socket numbers, and pointers
  45  * up (to a socket structure) and down (to a protocol-specific)
  46  * control block.
  47  */
  48 LIST_HEAD(inpcbhead, inpcb);
  49
  50 struct inpcb {
  51         LIST_ENTRY(inpcb) inp_list;             /* list for all PCBs of this proto */
  52         LIST_ENTRY(inpcb) inp_hash;             /* hash list */
  53         struct  inpcbinfo *inp_pcbinfo;
  54         struct  in_addr inp_faddr;      /* foreign host table entry */
  55         u_short inp_fport;              /* foreign port */
  56         struct  in_addr inp_laddr;      /* local host table entry */
  57         u_short inp_lport;              /* local port */
  58         struct  socket *inp_socket;     /* back pointer to socket */
  59         caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
  60         struct  route inp_route;        /* placeholder for routing entry */
  61         int     inp_flags;              /* generic IP/datagram flags */
  62         struct  ip inp_ip;              /* header prototype; should have more */
  63         struct  mbuf *inp_options;      /* IP options */
  64         struct  ip_moptions *inp_moptions; /* IP multicast options */
  65 };
  66
  67 struct inpcbinfo {
  68         struct inpcbhead *listhead;
  69         struct inpcbhead *hashbase;
  70         unsigned long hashsize;
  71         unsigned short lastport;
  72 };
  73
  74 /* flags in inp_flags: */
  75 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
  76 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
  77 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
  78 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
  79 #define INP_HDRINCL             0x08    /* user supplies entire IP header */
  80
  81 #ifdef sotorawcb                /* defined in net/raw_cb.h */
  82 /*
  83  * Common structure pcb for raw internet protocol access.
  84  * Here are internet specific extensions to the raw control block,
  85  * and space is allocated to the necessary sockaddrs.
  86  */
  87 struct raw_inpcb {
  88         struct  rawcb rinp_rcb; /* common control block prefix */
  89         struct  mbuf *rinp_options;     /* IP options */
  90         int     rinp_flags;             /* flags, e.g. raw sockopts */
  91 #define RINPF_HDRINCL   0x1             /* user supplies entire IP header */
  92         struct  sockaddr_in rinp_faddr; /* foreign address */
  93         struct  sockaddr_in rinp_laddr; /* local address */
  94         struct  route rinp_route;       /* placeholder for routing entry */
  95 };
  96 #endif
  97
  98 #define INPLOOKUP_WILDCARD      1
  99
 100 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 101 #define sotorawinpcb(so)        ((struct raw_inpcb *)(so)->so_pcb)
 102
 103 #ifdef KERNEL
 104 void     in_losing __P((struct inpcb *));
 105 int      in_pcballoc __P((struct socket *, struct inpcbinfo *));
 106 int      in_pcbbind __P((struct inpcb *, struct mbuf *));
 107 int      in_pcbconnect __P((struct inpcb *, struct mbuf *));
 108 void     in_pcbdetach __P((struct inpcb *));
 109 void     in_pcbdisconnect __P((struct inpcb *));
 110 void     in_pcbinshash __P((struct inpcb *));
 111 int      in_pcbladdr __P((struct inpcb *, struct mbuf *,
 112             struct sockaddr_in **));
 113 struct inpcb *
 114          in_pcblookup __P((struct inpcbhead *,
 115             struct in_addr, u_int, struct in_addr, u_int, int));
 116 struct inpcb *
 117          in_pcblookuphash __P((struct inpcbinfo *,
 118             struct in_addr, u_int, struct in_addr, u_int));
 119 void     in_pcbnotify __P((struct inpcbhead *, struct sockaddr *,
 120             u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
 121 void     in_pcbrehash __P((struct inpcb *));
 122 void     in_rtchange __P((struct inpcb *, int));
 123 void     in_setpeeraddr __P((struct inpcb *, struct mbuf *));
 124 void     in_setsockaddr __P((struct inpcb *, struct mbuf *));
 125 #endif
 126
 127 #endif