90 lines
3.4 KiB
C
90 lines
3.4 KiB
C
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/*
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* ng_async.h
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*
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* Copyright (c) 1996-1999 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Archie Cobbs <archie@whistle.com>
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*
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* $FreeBSD$
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* $Whistle: ng_async.h,v 1.5 1999/01/25 01:17:14 archie Exp $
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*/
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#ifndef _NETGRAPH_ASYNC_H_
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#define _NETGRAPH_ASYNC_H_
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/* Type name and cookie */
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#define NG_ASYNC_NODE_TYPE "async"
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#define NGM_ASYNC_COOKIE 886473715
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/* Hook names */
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#define NG_ASYNC_HOOK_SYNC "sync" /* Normal encoding */
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#define NG_ASYNC_HOOK_SYNC2 "sync2" /* Full ACCM, no ACF comp. */
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#define NG_ASYNC_HOOK_ASYNC "async" /* Normal decoding */
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/* Maximum receive size bounds (for both sync and async sides) */
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#define NG_ASYNC_MIN_MRU 1
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#define NG_ASYNC_MAX_MRU 8192
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#define NG_ASYNC_DEFAULT_MRU 1600
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/* Frame statistics */
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struct ng_async_stat {
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u_int32_t syncOctets;
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u_int32_t syncFrames;
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u_int32_t syncOverflows;
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u_int32_t asyncOctets;
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u_int32_t asyncFrames;
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u_int32_t asyncRunts;
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u_int32_t asyncOverflows;
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u_int32_t asyncBadCheckSums;
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};
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/* Configuration for this node */
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struct ng_async_cfg {
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u_char enabled; /* Turn encoding on/off */
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u_char acfcomp; /* Address/control field compression */
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u_int16_t amru; /* Max receive async frame length */
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u_int16_t smru; /* Max receive sync frame length */
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u_int32_t accm; /* ACCM encoding */
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};
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/* Commands */
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enum {
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NGM_ASYNC_CMD_GET_STATS = 1, /* returns struct ng_async_stat */
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NGM_ASYNC_CMD_CLR_STATS,
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NGM_ASYNC_CMD_SET_CONFIG, /* takes struct ng_async_cfg */
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NGM_ASYNC_CMD_GET_CONFIG, /* returns struct ng_async_cfg */
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};
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#endif /* _NETGRAPH_ASYNC_H_ */
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