workbench/network/stacks/AROSTCP/bsdsocket/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1990 Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)in_pcb.h    7.6 (Berkeley) 6/28/90
  34  */
  35
  36 #ifndef IN_PCB_H
  37 #define IN_PCB_H
  38
  39 /*
  40  * Common structure pcb for internet protocol implementation.
  41  * Here are stored pointers to local and foreign host table
  42  * entries, local and foreign socket numbers, and pointers
  43  * up (to a socket structure) and down (to a protocol-specific)
  44  * control block.
  45  */
  46 struct inpcb {
  47         struct  inpcb *inp_next,*inp_prev;
  48                                         /* pointers to other pcb's */
  49         struct  inpcb *inp_head;        /* pointer back to chain of inpcb's
  50                                            for this protocol */
  51         struct  in_addr inp_faddr;      /* foreign host table entry */
  52         u_short inp_fport;              /* foreign port */
  53         struct  in_addr inp_laddr;      /* local host table entry */
  54         u_short inp_lport;              /* local port */
  55         struct  socket *inp_socket;     /* back pointer to socket */
  56         caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
  57         struct  route inp_route;        /* placeholder for routing entry */
  58         int     inp_flags;              /* generic IP/datagram flags */
  59         struct  ip inp_ip;              /* header prototype; should have more */
  60         struct  mbuf *inp_options;      /* IP options */
  61 };
  62
  63 /* flags in inp_flags: */
  64 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
  65 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
  66 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
  67 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
  68
  69 #ifdef sotorawcb                /* defined in net/raw_cb.h */
  70 /*
  71  * Common structure pcb for raw internet protocol access.
  72  * Here are internet specific extensions to the raw control block,
  73  * and space is allocated to the necessary sockaddrs.
  74  */
  75 struct raw_inpcb {
  76         struct  rawcb rinp_rcb; /* common control block prefix */
  77         struct  mbuf *rinp_options;     /* IP options */
  78         int     rinp_flags;             /* flags, e.g. raw sockopts */
  79 #define RINPF_HDRINCL   0x1             /* user supplies entire IP header */
  80         struct  sockaddr_in rinp_faddr; /* foreign address */
  81         struct  sockaddr_in rinp_laddr; /* local address */
  82         struct  route rinp_route;       /* placeholder for routing entry */
  83 };
  84 #endif
  85
  86 #define INPLOOKUP_WILDCARD      1
  87 #define INPLOOKUP_SETLOCAL      2
  88
  89 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
  90 #define sotorawinpcb(so)        ((struct raw_inpcb *)(so)->so_pcb)
  91
  92 #ifdef KERNEL
  93 struct inpcb * in_pcblookup(struct inpcb * head,
  94                             struct in_addr faddr,
  95                             u_short fport,
  96                             struct in_addr laddr,
  97                             u_short lport,
  98                             int flags);
  99 #endif
 100
 101 #endif /* !IN_PCB_H */