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FreeBSD/Linux Kernel Cross Reference
sys/netgraph/ng_vjc.h

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    1 
    2 /*
    3  * ng_vjc.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  * $FreeBSD$
   42  * $Whistle: ng_vjc.h,v 1.6 1999/01/25 02:40:22 archie Exp $
   43  */
   44 
   45 #ifndef _NETGRAPH_NG_VJC_H_
   46 #define _NETGRAPH_NG_VJC_H_
   47 
   48  /* Node type name and magic cookie */
   49 #define NG_VJC_NODE_TYPE        "vjc"
   50 #define NGM_VJC_COOKIE          868219210
   51 
   52  /* Hook names */
   53 #define NG_VJC_HOOK_IP          "ip"            /* normal IP traffic */
   54 #define NG_VJC_HOOK_VJCOMP      "vjcomp"        /* compressed TCP */
   55 #define NG_VJC_HOOK_VJUNCOMP    "vjuncomp"      /* uncompressed TCP */
   56 #define NG_VJC_HOOK_VJIP        "vjip"          /* uncompressed IP */
   57 
   58  /* Minimum and maximum number of compression channels */
   59 #define NG_VJC_MIN_CHANNELS     4
   60 #define NG_VJC_MAX_CHANNELS     16
   61 
   62  /* Configure struct */
   63 struct ngm_vjc_config {
   64         u_char  enableComp;     /* Enable compression */
   65         u_char  enableDecomp;   /* Enable decompression */
   66         u_char  maxChannel;     /* Number of compression channels - 1 */
   67         u_char  compressCID;    /* OK to compress outgoing CID's */
   68 };
   69 
   70 /* Keep this in sync with the above structure definition */
   71 #define NG_VJC_CONFIG_TYPE_INFO {                               \
   72           { "enableComp",       &ng_parse_uint8_type    },      \
   73           { "enableDecomp",     &ng_parse_uint8_type    },      \
   74           { "maxChannel",       &ng_parse_uint8_type    },      \
   75           { "compressCID",      &ng_parse_uint8_type    },      \
   76           { NULL }                                              \
   77 }
   78 
   79  /* Netgraph commands */
   80 enum {
   81         NGM_VJC_SET_CONFIG,     /* Supply a struct ngm_vjc_config */
   82         NGM_VJC_GET_CONFIG,     /* Returns a struct ngm_vjc_config */
   83         NGM_VJC_GET_STATE,      /* Returns current struct slcompress */
   84         NGM_VJC_CLR_STATS,      /* Clears statistics counters */
   85         NGM_VJC_RECV_ERROR,     /* Indicate loss of incoming frame */
   86 };
   87 
   88 #endif /* _NETGRAPH_NG_VJC_H_ */

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