sys/netgraph7/ng_socketvar.h

   1 /*
   2  * netgraph.h
   3  */
   4
   5 /*-
   6  * Copyright (c) 1996-1999 Whistle Communications, Inc.
   7  * All rights reserved.
   8  *
   9  * Subject to the following obligations and disclaimer of warranty, use and
  10  * redistribution of this software, in source or object code forms, with or
  11  * without modifications are expressly permitted by Whistle Communications;
  12  * provided, however, that:
  13  * 1. Any and all reproductions of the source or object code must include the
  14  *    copyright notice above and the following disclaimer of warranties; and
  15  * 2. No rights are granted, in any manner or form, to use Whistle
  16  *    Communications, Inc. trademarks, including the mark "WHISTLE
  17  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  18  *    such appears in the above copyright notice or in the software.
  19  *
  20  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  21  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  22  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
  23  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
  24  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  25  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
  26  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
  27  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
  28  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
  29  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
  30  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  31  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
  32  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  35  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
  36  * OF SUCH DAMAGE.
  37  *
  38  * Author: Julian Elischer <julian@freebsd.org>
  39  *
  40  * $FreeBSD: src/sys/netgraph/ng_socketvar.h,v 1.10 2005/07/05 17:35:20 glebius Exp $
  41  * $DragonFly: src/sys/netgraph7/ng_socketvar.h,v 1.2 2008/06/26 23:05:35 dillon Exp $
  42  * $Whistle: ng_socketvar.h,v 1.1 1999/01/20 21:35:39 archie Exp $
  43  */
  44
  45 #ifndef _NETGRAPH_NG_SOCKETVAR_H_
  46 #define _NETGRAPH_NG_SOCKETVAR_H_
  47
  48 /* Netgraph protocol control block for each socket */
  49 struct ngpcb {
  50         struct socket    *ng_socket;    /* the socket */
  51         struct ngsock    *sockdata;     /* netgraph info */
  52         LIST_ENTRY(ngpcb) socks;        /* linked list of sockets */
  53         int               type;         /* NG_CONTROL or NG_DATA */
  54 };
  55
  56 /* Per-node private data */
  57 struct ngsock {
  58         struct ng_node  *node;          /* the associated netgraph node */
  59         struct ngpcb    *datasock;      /* optional data socket */
  60         struct ngpcb    *ctlsock;       /* optional control socket */
  61         int    flags;
  62         int    refs;
  63         struct mtx      mtx;            /* mtx to wait on */
  64         int             error;          /* place to store error */
  65 };
  66 #define NGS_FLAG_NOLINGER       1       /* close with last hook */
  67
  68 #endif /* _NETGRAPH_NG_SOCKETVAR_H_ */
  69