sys/netgraph/socket/ng_socketvar.h

   1
   2 /*
   3  * netgraph.h
   4  *
   5  * Copyright (c) 1996-1999 Whistle Communications, Inc.
   6  * All rights reserved.
   7  *
   8  * Subject to the following obligations and disclaimer of warranty, use and
   9  * redistribution of this software, in source or object code forms, with or
  10  * without modifications are expressly permitted by Whistle Communications;
  11  * provided, however, that:
  12  * 1. Any and all reproductions of the source or object code must include the
  13  *    copyright notice above and the following disclaimer of warranties; and
  14  * 2. No rights are granted, in any manner or form, to use Whistle
  15  *    Communications, Inc. trademarks, including the mark "WHISTLE
  16  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  17  *    such appears in the above copyright notice or in the software.
  18  *
  19  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  20  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  21  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
  22  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
  23  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  24  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
  25  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
  26  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
  27  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
  28  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
  29  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  30  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
  35  * OF SUCH DAMAGE.
  36  *
  37  * Author: Julian Elischer <julian@freebsd.org>
  38  *
  39  * $FreeBSD: src/sys/netgraph/ng_socketvar.h,v 1.4.4.1 2000/10/24 18:36:46 julian Exp $
  40  * $DragonFly: src/sys/netgraph/socket/ng_socketvar.h,v 1.3 2006/10/23 21:50:33 dillon Exp $
  41  * $Whistle: ng_socketvar.h,v 1.1 1999/01/20 21:35:39 archie Exp $
  42  */
  43
  44 #ifndef _NETGRAPH_NG_SOCKETVAR_H_
  45 #define _NETGRAPH_NG_SOCKETVAR_H_
  46
  47 /* Netgraph protocol control block for each socket */
  48 struct ngpcb {
  49         struct socket    *ng_socket;    /* the socket */
  50         struct ngsock    *sockdata;     /* netgraph info */
  51         LIST_ENTRY(ngpcb) socks;        /* linked list of sockets */
  52         int               type;         /* NG_CONTROL or NG_DATA */
  53 };
  54
  55 /* Per-node private data */
  56 struct ngsock {
  57         struct ng_node  *node;          /* the associated netgraph node */
  58         struct ngpcb    *datasock;      /* optional data socket */
  59         struct ngpcb    *ctlsock;       /* optional control socket */
  60         int    flags;
  61         int    refs;
  62 };
  63 #define NGS_FLAG_NOLINGER       1       /* close with last hook */
  64
  65 #endif /* _NETGRAPH_NG_SOCKETVAR_H_ */
  66