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

     /*      $NetBSD: ns_pcb.h,v 1.10 2003/08/07 16:33:46 agc Exp $  */
     
     /*
      * Copyright (c) 1984, 1985, 1986, 1987, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)ns_pcb.h    8.1 (Berkeley) 6/10/93
     */
    
    /*
     * Ns protocol interface control block.
     */
    struct nspcb {
            struct  nspcb *nsp_next;        /* doubly linked list */
            struct  nspcb *nsp_prev;
            struct  nspcb *nsp_head;
            struct  socket *nsp_socket;     /* back pointer to socket */
            struct  ns_addr nsp_faddr;      /* destination address */
            struct  ns_addr nsp_laddr;      /* socket's address */
            caddr_t nsp_pcb;                /* protocol specific stuff */
            struct  route nsp_route;        /* routing information */
            struct  ns_addr nsp_lastdst;    /* validate cached route for dg socks*/
            long    nsp_notify_param;       /* extra info passed via ns_pcbnotify*/
            short   nsp_flags;
            u_int8_t nsp_dpt;               /* default packet type for idp_output*/
            u_int8_t nsp_rpt;               /* last received packet type by
                                                                    idp_input() */
    };
    
    /* possible flags */
    
    #define NSP_IN_ABORT    0x1             /* calling abort through socket */
    #define NSP_RAWIN       0x2             /* show headers on input */
    #define NSP_RAWOUT      0x4             /* show header on output */
    #define NSP_ALL_PACKETS 0x8             /* Turn off higher proto processing */
    
    #define NS_WILDCARD     1
    
    #define nsp_lport nsp_laddr.x_port
    #define nsp_fport nsp_faddr.x_port
    
    #define sotonspcb(so)           ((struct nspcb *)((so)->so_pcb))
    
    /*
     * Nominal space allocated to a ns socket.
     */
    #define NSSNDQ          2048
    #define NSRCVQ          2048
    
    
    #ifdef _KERNEL
    extern  struct  nspcb nspcb;                    /* head of list */
    #endif

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