ng_vjc.h

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/*
 * ng_vjc.h
 */
 
/*-
 * Copyright (c) 1996-1999 Whistle Communications, Inc.
 * All rights reserved.
 * 
 * Subject to the following obligations and disclaimer of warranty, use and
 * redistribution of this software, in source or object code forms, with or
 * without modifications are expressly permitted by Whistle Communications;
 * provided, however, that:
 * 1. Any and all reproductions of the source or object code must include the
 *    copyright notice above and the following disclaimer of warranties; and
 * 2. No rights are granted, in any manner or form, to use Whistle
 *    Communications, Inc. trademarks, including the mark "WHISTLE
 *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
 *    such appears in the above copyright notice or in the software.
 * 
 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * Author: Archie Cobbs <archie@freebsd.org>
 *
 * $FreeBSD$
 * $Whistle: ng_vjc.h,v 1.6 1999/01/25 02:40:22 archie Exp $
 */
 
#ifndef _NETGRAPH_NG_VJC_H_
#define _NETGRAPH_NG_VJC_H_
 
 /* Node type name and magic cookie */
#define NG_VJC_NODE_TYPE        "vjc"
#define NGM_VJC_COOKIE          868219210
 
 /* Hook names */
#define NG_VJC_HOOK_IP          "ip"            /* normal IP traffic */
#define NG_VJC_HOOK_VJCOMP      "vjcomp"        /* compressed TCP */
#define NG_VJC_HOOK_VJUNCOMP    "vjuncomp"      /* uncompressed TCP */
#define NG_VJC_HOOK_VJIP        "vjip"          /* uncompressed IP */
 
 /* Minimum and maximum number of compression channels */
#define NG_VJC_MIN_CHANNELS     4
#define NG_VJC_MAX_CHANNELS     16
 
 /* Configure struct */
struct ngm_vjc_config {
        u_char  enableComp;     /* Enable compression */
        u_char  enableDecomp;   /* Enable decompression */
        u_char  maxChannel;     /* Number of compression channels - 1 */
        u_char  compressCID;    /* OK to compress outgoing CID's */
};
 
/* Keep this in sync with the above structure definition */
#define NG_VJC_CONFIG_TYPE_INFO {                               \
          { "enableComp",       &ng_parse_uint8_type    },      \
          { "enableDecomp",     &ng_parse_uint8_type    },      \
          { "maxChannel",       &ng_parse_uint8_type    },      \
          { "compressCID",      &ng_parse_uint8_type    },      \
          { NULL }                                              \
}
 
 /* Netgraph commands */
enum {
        NGM_VJC_SET_CONFIG,     /* Supply a struct ngm_vjc_config */
        NGM_VJC_GET_CONFIG,     /* Returns a struct ngm_vjc_config */
        NGM_VJC_GET_STATE,      /* Returns current struct slcompress */
        NGM_VJC_CLR_STATS,      /* Clears statistics counters */
        NGM_VJC_RECV_ERROR,     /* Indicate loss of incoming frame */
};
 
#endif /* _NETGRAPH_NG_VJC_H_ */