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  * Copyright 2002 Sandvine Inc.
    5  * All rights reserved.
    6  *
    7  * Subject to the following obligations and disclaimer of warranty, use and
    8  * redistribution of this software, in source or object code forms, with or
    9  * without modifications are expressly permitted by Sandvine Inc.;
   10 provided,
   11  * however, that:
   12  * 1. Any and all reproductions of the source or object code must include
   13 the
   14  *    copyright notice above and the following disclaimer of warranties;
   15 and
   16  * 2. No rights are granted, in any manner or form, to use Sandvine Inc.
   17  *    trademarks, including the mark "SANDVINE" on advertising,
   18 endorsements,
   19  *    or otherwise except as such appears in the above copyright notice or
   20 in
   21  *    the software.
   22  *
   23  * THIS SOFTWARE IS BEING PROVIDED BY SANDVINE "AS IS", AND TO THE MAXIMUM
   24  * EXTENT PERMITTED BY LAW, SANDVINE MAKES NO REPRESENTATIONS OR
   25 WARRANTIES,
   26  * EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, INCLUDING WITHOUT
   27 LIMITATION,
   28  * ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
   29 PARTICULAR
   30  * PURPOSE, OR NON-INFRINGEMENT.  SANDVINE DOES NOT WARRANT, GUARANTEE, OR
   31  * MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE
   32  * USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY
   33  * OR OTHERWISE.  IN NO EVENT SHALL SANDVINE BE LIABLE FOR ANY DAMAGES
   34  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
   35  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   36 EXEMPLARY,
   37  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
   38  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
   39  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   40  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   41  * THIS SOFTWARE, EVEN IF SANDVINE IS ADVISED OF THE POSSIBILITY OF SUCH
   42  * DAMAGE.
   43  *
   44  * Author: Dave Chapeskie <dchapeskie@sandvine.com>
   45  *
   46  * $FreeBSD: releng/5.3/sys/netgraph/ng_source.h 136588 2004-10-16 08:43:07Z cvs2svn $
   47  */
   48 
   49 #ifndef _NETGRAPH_NG_SOURCE_H_
   50 #define _NETGRAPH_NG_SOURCE_H_
   51 
   52 /* Node type name and magic cookie */
   53 #define NG_SOURCE_NODE_TYPE     "source"
   54 #define NGM_SOURCE_COOKIE       1034346805
   55 
   56 /* Hook names */
   57 #define NG_SOURCE_HOOK_INPUT    "input"
   58 #define NG_SOURCE_HOOK_OUTPUT   "output"
   59 
   60 /* Statistics structure returned by NGM_SOURCE_GET_STATS */
   61 struct ng_source_stats {
   62         u_int64_t       outOctets;
   63         u_int64_t       outFrames;
   64         u_int32_t       queueOctets;
   65         u_int32_t       queueFrames;
   66         struct timeval  startTime;
   67         struct timeval  endTime;
   68         struct timeval  elapsedTime;
   69 };
   70 
   71 extern const struct ng_parse_type ng_source_timeval_type;
   72 /* Keep this in sync with the above structure definition */
   73 #define NG_SOURCE_STATS_TYPE_INFO       {                       \
   74           { "outOctets",        &ng_parse_uint64_type   },      \
   75           { "outFrames",        &ng_parse_uint64_type   },      \
   76           { "queueOctets",      &ng_parse_uint32_type   },      \
   77           { "queueFrames",      &ng_parse_uint32_type   },      \
   78           { "startTime",        &ng_source_timeval_type },      \
   79           { "endTime",          &ng_source_timeval_type },      \
   80           { "elapsedTime",      &ng_source_timeval_type },      \
   81           { NULL }                                              \
   82 }
   83 
   84 /* Netgraph commands */
   85 enum {
   86         NGM_SOURCE_GET_STATS = 1,       /* get stats */
   87         NGM_SOURCE_CLR_STATS,           /* clear stats */
   88         NGM_SOURCE_GETCLR_STATS,        /* atomically get and clear stats */
   89         NGM_SOURCE_START,               /* start sending queued data */
   90         NGM_SOURCE_STOP,                /* stop sending queued data */
   91         NGM_SOURCE_CLR_DATA,            /* clear the queued data */
   92         NGM_SOURCE_START_NOW,           /* start on non-ether output */
   93 };
   94 
   95 #endif /* _NETGRAPH_NG_SOURCE_H_ */

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