1 2 /* 3 * ng_vjc.h 4 * 5 * Copyright (c) 1996-1999 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and 9 * redistribution of this software, in source or object code forms, with or 10 * without modifications are expressly permitted by Whistle Communications; 11 * provided, however, that: 12 * 1. Any and all reproductions of the source or object code must include the 13 * copyright notice above and the following disclaimer of warranties; and 14 * 2. No rights are granted, in any manner or form, to use Whistle 15 * Communications, Inc. trademarks, including the mark "WHISTLE 16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 17 * such appears in the above copyright notice or in the software. 18 * 19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * Author: Archie Cobbs <archie@freebsd.org> 38 * 39 * $FreeBSD: src/sys/netgraph/ng_vjc.h,v 1.4.4.3 2002/07/02 23:44:03 archie Exp $ 40 * $DragonFly: src/sys/netgraph/vjc/ng_vjc.h,v 1.2 2003/06/17 04:28:51 dillon Exp $ 41 * $Whistle: ng_vjc.h,v 1.6 1999/01/25 02:40:22 archie Exp $ 42 */ 43 44 #ifndef _NETGRAPH_VJC_H_ 45 #define _NETGRAPH_VJC_H_ 46 47 /* Node type name and magic cookie */ 48 #define NG_VJC_NODE_TYPE "vjc" 49 #define NGM_VJC_COOKIE 868219210 50 51 /* Hook names */ 52 #define NG_VJC_HOOK_IP "ip" /* normal IP traffic */ 53 #define NG_VJC_HOOK_VJCOMP "vjcomp" /* compressed TCP */ 54 #define NG_VJC_HOOK_VJUNCOMP "vjuncomp" /* uncompressed TCP */ 55 #define NG_VJC_HOOK_VJIP "vjip" /* uncompressed IP */ 56 57 /* Minimum and maximum number of compression channels */ 58 #define NG_VJC_MIN_CHANNELS 4 59 #define NG_VJC_MAX_CHANNELS 16 60 61 /* Configure struct */ 62 struct ngm_vjc_config { 63 u_char enableComp; /* Enable compression */ 64 u_char enableDecomp; /* Enable decompression */ 65 u_char maxChannel; /* Number of compression channels - 1 */ 66 u_char compressCID; /* OK to compress outgoing CID's */ 67 }; 68 69 /* Keep this in sync with the above structure definition */ 70 #define NG_VJC_CONFIG_TYPE_INFO { \ 71 { "enableComp", &ng_parse_uint8_type }, \ 72 { "enableDecomp", &ng_parse_uint8_type }, \ 73 { "maxChannel", &ng_parse_uint8_type }, \ 74 { "compressCID", &ng_parse_uint8_type }, \ 75 { NULL } \ 76 } 77 78 /* Netgraph commands */ 79 enum { 80 NGM_VJC_SET_CONFIG, /* Supply a struct ngm_vjc_config */ 81 NGM_VJC_GET_CONFIG, /* Returns a struct ngm_vjc_config */ 82 NGM_VJC_GET_STATE, /* Returns current struct slcompress */ 83 NGM_VJC_CLR_STATS, /* Clears statistics counters */ 84 NGM_VJC_RECV_ERROR, /* Indicate loss of incoming frame */ 85 }; 86 87 #endif /* _NETGRAPH_VJC_H_ */ 88