1 /* 2 * ng_mppc.h 3 */ 4 5 /*- 6 * Copyright (c) 1996-2000 Whistle Communications, Inc. 7 * All rights reserved. 8 * 9 * Subject to the following obligations and disclaimer of warranty, use and 10 * redistribution of this software, in source or object code forms, with or 11 * without modifications are expressly permitted by Whistle Communications; 12 * provided, however, that: 13 * 1. Any and all reproductions of the source or object code must include the 14 * copyright notice above and the following disclaimer of warranties; and 15 * 2. No rights are granted, in any manner or form, to use Whistle 16 * Communications, Inc. trademarks, including the mark "WHISTLE 17 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18 * such appears in the above copyright notice or in the software. 19 * 20 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36 * OF SUCH DAMAGE. 37 * 38 * Author: Archie Cobbs <archie@freebsd.org> 39 * 40 * $Whistle: ng_mppc.h,v 1.3 2000/02/12 01:17:22 archie Exp $ 41 */ 42 43 #ifndef _NETGRAPH_NG_MPPC_H_ 44 #define _NETGRAPH_NG_MPPC_H_ 45 46 /* Node type name and magic cookie */ 47 #define NG_MPPC_NODE_TYPE "mppc" 48 #define NGM_MPPC_COOKIE 942886745 49 50 /* Hook names */ 51 #define NG_MPPC_HOOK_COMP "comp" /* compression hook */ 52 #define NG_MPPC_HOOK_DECOMP "decomp" /* decompression hook */ 53 54 /* Length of MPPE key */ 55 #define MPPE_KEY_LEN 16 56 57 /* Max expansion due to MPPC header and compression algorithm */ 58 #define MPPC_MAX_BLOWUP(n) ((n) * 9 / 8 + 26) 59 60 /* MPPC/MPPE PPP negotiation bits */ 61 #define MPPC_BIT 0x00000001 /* mppc compression bits */ 62 #define MPPE_40 0x00000020 /* use 40 bit key */ 63 #define MPPE_56 0x00000080 /* use 56 bit key */ 64 #define MPPE_128 0x00000040 /* use 128 bit key */ 65 #define MPPE_BITS 0x000000e0 /* mppe encryption bits */ 66 #define MPPE_STATELESS 0x01000000 /* use stateless mode */ 67 #define MPPC_VALID_BITS 0x010000e1 /* possibly valid bits */ 68 69 /* Config struct (per-direction) */ 70 struct ng_mppc_config { 71 u_char enable; /* enable */ 72 u_int32_t bits; /* config bits */ 73 u_char startkey[MPPE_KEY_LEN]; /* start key */ 74 }; 75 76 /* Netgraph commands */ 77 enum { 78 NGM_MPPC_CONFIG_COMP = 1, 79 NGM_MPPC_CONFIG_DECOMP, 80 NGM_MPPC_RESETREQ, /* sent either way! */ 81 }; 82 83 #endif /* _NETGRAPH_NG_MPPC_H_ */ 84