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_ */ 89