sys/netgraph7/ng_tee.h

   1
   2 /*
   3  * ng_tee.h
   4  */
   5
   6 /*-
   7  * Copyright (c) 1996-1999 Whistle Communications, Inc.
   8  * All rights reserved.
   9  *
  10  * Subject to the following obligations and disclaimer of warranty, use and
  11  * redistribution of this software, in source or object code forms, with or
  12  * without modifications are expressly permitted by Whistle Communications;
  13  * provided, however, that:
  14  * 1. Any and all reproductions of the source or object code must include the
  15  *    copyright notice above and the following disclaimer of warranties; and
  16  * 2. No rights are granted, in any manner or form, to use Whistle
  17  *    Communications, Inc. trademarks, including the mark "WHISTLE
  18  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  19  *    such appears in the above copyright notice or in the software.
  20  *
  21  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  22  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  23  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
  24  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  26  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
  27  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
  28  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
  29  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
  30  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
  31  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  32  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
  33  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
  34  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  36  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
  37  * OF SUCH DAMAGE.
  38  *
  39  * Author: Archie Cobbs <archie@freebsd.org>
  40  *
  41  * $FreeBSD: src/sys/netgraph/ng_tee.h,v 1.8 2005/01/07 01:45:39 imp Exp $
  42  * $Whistle: ng_tee.h,v 1.2 1999/01/20 00:22:14 archie Exp $
  43  */
  44
  45 #ifndef _NETGRAPH_NG_TEE_H_
  46 #define _NETGRAPH_NG_TEE_H_
  47
  48 /* Node type name and magic cookie */
  49 #define NG_TEE_NODE_TYPE        "tee"
  50 #define NGM_TEE_COOKIE          916107047
  51
  52 /* Hook names */
  53 #define NG_TEE_HOOK_RIGHT       "right"
  54 #define NG_TEE_HOOK_LEFT        "left"
  55 #define NG_TEE_HOOK_RIGHT2LEFT  "right2left"
  56 #define NG_TEE_HOOK_LEFT2RIGHT  "left2right"
  57
  58 /* Statistics structure for one hook */
  59 struct ng_tee_hookstat {
  60         u_int64_t       inOctets;
  61         u_int64_t       inFrames;
  62         u_int64_t       outOctets;
  63         u_int64_t       outFrames;
  64 };
  65
  66 /* Keep this in sync with the above structure definition */
  67 #define NG_TEE_HOOKSTAT_INFO    {                               \
  68           { "inOctets",         &ng_parse_uint64_type   },      \
  69           { "inFrames",         &ng_parse_uint64_type   },      \
  70           { "outOctets",        &ng_parse_uint64_type   },      \
  71           { "outFrames",        &ng_parse_uint64_type   },      \
  72           { NULL }                                              \
  73 }
  74
  75 /* Statistics structure returned by NGM_TEE_GET_STATS */
  76 struct ng_tee_stats {
  77         struct ng_tee_hookstat  right;
  78         struct ng_tee_hookstat  left;
  79         struct ng_tee_hookstat  right2left;
  80         struct ng_tee_hookstat  left2right;
  81 };
  82
  83 /* Keep this in sync with the above structure definition */
  84 #define NG_TEE_STATS_INFO(hstype)       {                       \
  85           { "right",            (hstype)                },      \
  86           { "left",             (hstype)                },      \
  87           { "right2left",       (hstype)                },      \
  88           { "left2right",       (hstype)                },      \
  89           { NULL }                                              \
  90 }
  91
  92 /* Netgraph commands */
  93 enum {
  94         NGM_TEE_GET_STATS = 1,          /* get stats */
  95         NGM_TEE_CLR_STATS,              /* clear stats */
  96         NGM_TEE_GETCLR_STATS,           /* atomically get and clear stats */
  97 };
  98
  99 #endif /* _NETGRAPH_NG_TEE_H_ */