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_source.h

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    1 /*
    2  * ng_source.h
    3  */
    4 
    5 /*-
    6  * Copyright 2002 Sandvine 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 Sandvine Inc.;
   12 provided,
   13  * however, that:
   14  * 1. Any and all reproductions of the source or object code must include
   15 the
   16  *    copyright notice above and the following disclaimer of warranties;
   17 and
   18  * 2. No rights are granted, in any manner or form, to use Sandvine Inc.
   19  *    trademarks, including the mark "SANDVINE" on advertising,
   20 endorsements,
   21  *    or otherwise except as such appears in the above copyright notice or
   22 in
   23  *    the software.
   24  *
   25  * THIS SOFTWARE IS BEING PROVIDED BY SANDVINE "AS IS", AND TO THE MAXIMUM
   26  * EXTENT PERMITTED BY LAW, SANDVINE MAKES NO REPRESENTATIONS OR
   27 WARRANTIES,
   28  * EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, INCLUDING WITHOUT
   29 LIMITATION,
   30  * ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
   31 PARTICULAR
   32  * PURPOSE, OR NON-INFRINGEMENT.  SANDVINE DOES NOT WARRANT, GUARANTEE, OR
   33  * MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE
   34  * USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY
   35  * OR OTHERWISE.  IN NO EVENT SHALL SANDVINE BE LIABLE FOR ANY DAMAGES
   36  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
   37  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   38 EXEMPLARY,
   39  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
   40  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
   41  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   42  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   43  * THIS SOFTWARE, EVEN IF SANDVINE IS ADVISED OF THE POSSIBILITY OF SUCH
   44  * DAMAGE.
   45  *
   46  * Author: Dave Chapeskie <dchapeskie@sandvine.com>
   47  *
   48  * $FreeBSD: src/sys/netgraph/ng_source.h,v 1.3.2.1 2005/01/31 23:26:29 imp Exp $
   49  */
   50 
   51 #ifndef _NETGRAPH_NG_SOURCE_H_
   52 #define _NETGRAPH_NG_SOURCE_H_
   53 
   54 /* Node type name and magic cookie */
   55 #define NG_SOURCE_NODE_TYPE     "source"
   56 #define NGM_SOURCE_COOKIE       1034346805
   57 
   58 /* Hook names */
   59 #define NG_SOURCE_HOOK_INPUT    "input"
   60 #define NG_SOURCE_HOOK_OUTPUT   "output"
   61 
   62 /* Statistics structure returned by NGM_SOURCE_GET_STATS */
   63 struct ng_source_stats {
   64         u_int64_t       outOctets;
   65         u_int64_t       outFrames;
   66         u_int32_t       queueOctets;
   67         u_int32_t       queueFrames;
   68         struct timeval  startTime;
   69         struct timeval  endTime;
   70         struct timeval  elapsedTime;
   71 };
   72 
   73 extern const struct ng_parse_type ng_source_timeval_type;
   74 /* Keep this in sync with the above structure definition */
   75 #define NG_SOURCE_STATS_TYPE_INFO       {                       \
   76           { "outOctets",        &ng_parse_uint64_type   },      \
   77           { "outFrames",        &ng_parse_uint64_type   },      \
   78           { "queueOctets",      &ng_parse_uint32_type   },      \
   79           { "queueFrames",      &ng_parse_uint32_type   },      \
   80           { "startTime",        &ng_source_timeval_type },      \
   81           { "endTime",          &ng_source_timeval_type },      \
   82           { "elapsedTime",      &ng_source_timeval_type },      \
   83           { NULL }                                              \
   84 }
   85 
   86 /* Netgraph commands */
   87 enum {
   88         NGM_SOURCE_GET_STATS = 1,       /* get stats */
   89         NGM_SOURCE_CLR_STATS,           /* clear stats */
   90         NGM_SOURCE_GETCLR_STATS,        /* atomically get and clear stats */
   91         NGM_SOURCE_START,               /* start sending queued data */
   92         NGM_SOURCE_STOP,                /* stop sending queued data */
   93         NGM_SOURCE_CLR_DATA,            /* clear the queued data */
   94         NGM_SOURCE_START_NOW,           /* start on non-ether output */
   95 };
   96 
   97 #endif /* _NETGRAPH_NG_SOURCE_H_ */

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