The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netns/ns_pcb.h

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    1 /*      $NetBSD: ns_pcb.h,v 1.10 2003/08/07 16:33:46 agc Exp $  */
    2 
    3 /*
    4  * Copyright (c) 1984, 1985, 1986, 1987, 1993
    5  *      The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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  *      @(#)ns_pcb.h    8.1 (Berkeley) 6/10/93
   32  */
   33 
   34 /*
   35  * Ns protocol interface control block.
   36  */
   37 struct nspcb {
   38         struct  nspcb *nsp_next;        /* doubly linked list */
   39         struct  nspcb *nsp_prev;
   40         struct  nspcb *nsp_head;
   41         struct  socket *nsp_socket;     /* back pointer to socket */
   42         struct  ns_addr nsp_faddr;      /* destination address */
   43         struct  ns_addr nsp_laddr;      /* socket's address */
   44         caddr_t nsp_pcb;                /* protocol specific stuff */
   45         struct  route nsp_route;        /* routing information */
   46         struct  ns_addr nsp_lastdst;    /* validate cached route for dg socks*/
   47         long    nsp_notify_param;       /* extra info passed via ns_pcbnotify*/
   48         short   nsp_flags;
   49         u_int8_t nsp_dpt;               /* default packet type for idp_output*/
   50         u_int8_t nsp_rpt;               /* last received packet type by
   51                                                                 idp_input() */
   52 };
   53 
   54 /* possible flags */
   55 
   56 #define NSP_IN_ABORT    0x1             /* calling abort through socket */
   57 #define NSP_RAWIN       0x2             /* show headers on input */
   58 #define NSP_RAWOUT      0x4             /* show header on output */
   59 #define NSP_ALL_PACKETS 0x8             /* Turn off higher proto processing */
   60 
   61 #define NS_WILDCARD     1
   62 
   63 #define nsp_lport nsp_laddr.x_port
   64 #define nsp_fport nsp_faddr.x_port
   65 
   66 #define sotonspcb(so)           ((struct nspcb *)((so)->so_pcb))
   67 
   68 /*
   69  * Nominal space allocated to a ns socket.
   70  */
   71 #define NSSNDQ          2048
   72 #define NSRCVQ          2048
   73 
   74 
   75 #ifdef _KERNEL
   76 extern  struct  nspcb nspcb;                    /* head of list */
   77 #endif

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