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 /*
    2  * Copyright (c) 1984, 1985, 1986, 1987, 1993
    3  *      The Regents of the University of California.  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  *      @(#)ns_pcb.h    8.1 (Berkeley) 6/10/93
   34  * $FreeBSD$
   35  */
   36 
   37 #ifndef _NETNS_NS_PCB_H_
   38 #define _NETNS_NS_PCB_H_
   39 
   40 /*
   41  * Ns protocol interface control block.
   42  */
   43 struct nspcb {
   44         struct  nspcb *nsp_next;        /* doubly linked list */
   45         struct  nspcb *nsp_prev;
   46         struct  socket *nsp_socket;     /* back pointer to socket */
   47         struct  ns_addr nsp_faddr;      /* destination address */
   48         struct  ns_addr nsp_laddr;      /* socket's address */
   49         caddr_t nsp_pcb;                /* protocol specific stuff */
   50         struct  route nsp_route;        /* routing information */
   51         struct  ns_addr nsp_lastdst;    /* validate cached route for dg socks*/
   52         long    nsp_notify_param;       /* extra info passed via ns_pcbnotify*/
   53         short   nsp_flags;
   54         u_char  nsp_dpt;                /* default packet type for idp_output*/
   55         u_char  nsp_rpt;                /* last received packet type by
   56                                                                 idp_input() */
   57 };
   58 
   59 /* possible flags */
   60 
   61 #define NSP_IN_ABORT    0x1             /* calling abort through socket */
   62 #define NSP_RAWIN       0x2             /* show headers on input */
   63 #define NSP_RAWOUT      0x4             /* show header on output */
   64 #define NSP_ALL_PACKETS 0x8             /* Turn off higher proto processing */
   65 
   66 #define NS_WILDCARD     1
   67 
   68 #define nsp_lport nsp_laddr.x_port
   69 #define nsp_fport nsp_faddr.x_port
   70 
   71 #define sotonspcb(so)           ((struct nspcb *)((so)->so_pcb))
   72 
   73 /*
   74  * Nominal space allocated to a ns socket.
   75  */
   76 #define NSSNDQ          2048
   77 #define NSRCVQ          2048
   78 
   79 
   80 #ifdef KERNEL
   81 struct  nspcb nspcb;                    /* head of list */
   82 struct  nspcb *ns_pcblookup();
   83 #endif
   84 
   85 #endif

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