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  * ng_sample.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: releng/7.4/sys/netgraph/ng_sample.h 139823 2005-01-07 01:45:51Z imp $
   41  * $Whistle: ng_sample.h,v 1.3 1999/01/20 00:22:14 archie Exp $
   42  */
   43 
   44 #ifndef _NETGRAPH_NG_SAMPLE_H_
   45 #define _NETGRAPH_NG_SAMPLE_H_
   46 
   47 /* Node type name. This should be unique among all netgraph node types */
   48 #define NG_XXX_NODE_TYPE        "sample"
   49 
   50 /* Node type cookie. Should also be unique. This value MUST change whenever
   51    an incompatible change is made to this header file, to insure consistency.
   52    The de facto method for generating cookies is to take the output of the
   53    date command: date -u +'%s' */
   54 #define NGM_XXX_COOKIE          915491374
   55 
   56 /* Number of active DLCI's we can handle */
   57 #define XXX_NUM_DLCIS           16
   58 
   59 /* Hook names */
   60 #define NG_XXX_HOOK_DLCI_LEADIN "dlci"
   61 #define NG_XXX_HOOK_DOWNSTREAM  "downstream"
   62 #define NG_XXX_HOOK_DEBUG       "debug"
   63 
   64 /* Netgraph commands understood by this node type */
   65 enum {
   66         NGM_XXX_SET_FLAG = 1,
   67         NGM_XXX_GET_STATUS,
   68 };
   69 
   70 /* This structure is returned by the NGM_XXX_GET_STATUS command */
   71 struct ngxxxstat {
   72         u_int32_t   packets_in;         /* packets in from downstream */
   73         u_int32_t   packets_out;        /* packets out towards downstream */
   74 };
   75 
   76 /*
   77  * This is used to define the 'parse type' for a struct ngxxxstat, which
   78  * is bascially a description of how to convert a binary struct ngxxxstat
   79  * to an ASCII string and back.  See ng_parse.h for more info.
   80  *
   81  * This needs to be kept in sync with the above structure definition
   82  */
   83 #define NG_XXX_STATS_TYPE_INFO  {                               \
   84           { "packets_in",       &ng_parse_uint32_type   },      \
   85           { "packets_out",      &ng_parse_uint32_type   },      \
   86           { NULL }                                              \
   87 }
   88 
   89 #endif /* _NETGRAPH_NG_SAMPLE_H_ */

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