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/netgraph/ng_sample.h

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    1 
    2 /*
    3  * ng_sample.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: releng/5.0/sys/netgraph/ng_sample.h 97685 2002-05-31 23:48:03Z archie $
   40  * $Whistle: ng_sample.h,v 1.3 1999/01/20 00:22:14 archie Exp $
   41  */
   42 
   43 #ifndef _NETGRAPH_SAMPLE_H_
   44 #define _NETGRAPH_SAMPLE_H_
   45 
   46 /* Node type name. This should be unique among all netgraph node types */
   47 #define NG_XXX_NODE_TYPE        "sample"
   48 
   49 /* Node type cookie. Should also be unique. This value MUST change whenever
   50    an incompatible change is made to this header file, to insure consistency.
   51    The de facto method for generating cookies is to take the output of the
   52    date command: date -u +'%s' */
   53 #define NGM_XXX_COOKIE          915491374
   54 
   55 /* Number of active DLCI's we can handle */
   56 #define XXX_NUM_DLCIS           16
   57 
   58 /* Hook names */
   59 #define NG_XXX_HOOK_DLCI_LEADIN "dlci"
   60 #define NG_XXX_HOOK_DOWNSTREAM  "downstream"
   61 #define NG_XXX_HOOK_DEBUG       "debug"
   62 
   63 /* Netgraph commands understood by this node type */
   64 enum {
   65         NGM_XXX_SET_FLAG = 1,
   66         NGM_XXX_GET_STATUS,
   67 };
   68 
   69 /* This structure is returned by the NGM_XXX_GET_STATUS command */
   70 struct ngxxxstat {
   71         u_int32_t   packets_in;         /* packets in from downstream */
   72         u_int32_t   packets_out;        /* packets out towards downstream */
   73 };
   74 
   75 /*
   76  * This is used to define the 'parse type' for a struct ngxxxstat, which
   77  * is bascially a description of how to convert a binary struct ngxxxstat
   78  * to an ASCII string and back.  See ng_parse.h for more info.
   79  *
   80  * This needs to be kept in sync with the above structure definition
   81  */
   82 #define NG_XXX_STATS_TYPE_INFO  {                               \
   83           { "packets_in",       &ng_parse_uint32_type   },      \
   84           { "packets_out",      &ng_parse_uint32_type   },      \
   85           { NULL }                                              \
   86 }
   87 
   88 #endif /* _NETGRAPH_SAMPLE_H_ */

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