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Annotation of Net2/netinet/in_pcb.h, revision 1.1.1.1

1.1       root        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: /*
                     37:  * Common structure pcb for internet protocol implementation.
                     38:  * Here are stored pointers to local and foreign host table
                     39:  * entries, local and foreign socket numbers, and pointers
                     40:  * up (to a socket structure) and down (to a protocol-specific)
                     41:  * control block.
                     42:  */
                     43: struct inpcb {
                     44:        struct  inpcb *inp_next,*inp_prev;
                     45:                                        /* pointers to other pcb's */
                     46:        struct  inpcb *inp_head;        /* pointer back to chain of inpcb's
                     47:                                           for this protocol */
                     48:        struct  in_addr inp_faddr;      /* foreign host table entry */
                     49:        u_short inp_fport;              /* foreign port */
                     50:        struct  in_addr inp_laddr;      /* local host table entry */
                     51:        u_short inp_lport;              /* local port */
                     52:        struct  socket *inp_socket;     /* back pointer to socket */
                     53:        caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
                     54:        struct  route inp_route;        /* placeholder for routing entry */
                     55:        int     inp_flags;              /* generic IP/datagram flags */
                     56:        struct  ip inp_ip;              /* header prototype; should have more */
                     57:        struct  mbuf *inp_options;      /* IP options */
                     58: };
                     59: 
                     60: /* flags in inp_flags: */
                     61: #define        INP_RECVOPTS            0x01    /* receive incoming IP options */
                     62: #define        INP_RECVRETOPTS         0x02    /* receive IP options for reply */
                     63: #define        INP_RECVDSTADDR         0x04    /* receive IP dst address */
                     64: #define        INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
                     65: 
                     66: #ifdef sotorawcb
                     67: /*
                     68:  * Common structure pcb for raw internet protocol access.
                     69:  * Here are internet specific extensions to the raw control block,
                     70:  * and space is allocated to the necessary sockaddrs.
                     71:  */
                     72: struct raw_inpcb {
                     73:        struct  rawcb rinp_rcb; /* common control block prefix */
                     74:        struct  mbuf *rinp_options;     /* IP options */
                     75:        int     rinp_flags;             /* flags, e.g. raw sockopts */
                     76: #define        RINPF_HDRINCL   0x1             /* user supplies entire IP header */
                     77:        struct  sockaddr_in rinp_faddr; /* foreign address */
                     78:        struct  sockaddr_in rinp_laddr; /* local address */
                     79:        struct  route rinp_route;       /* placeholder for routing entry */
                     80: };
                     81: #endif
                     82: 
                     83: #define        INPLOOKUP_WILDCARD      1
                     84: #define        INPLOOKUP_SETLOCAL      2
                     85: 
                     86: #define        sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
                     87: #define        sotorawinpcb(so)        ((struct raw_inpcb *)(so)->so_pcb)
                     88: 
                     89: #ifdef KERNEL
                     90: struct inpcb *in_pcblookup();
                     91: #endif

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