1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 5 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 6 * Internet Initiative Japan, Inc (IIJ) 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 /* 34 * Definition of protocol numbers 35 */ 36 #define PROTO_IP 0x0021 /* IP */ 37 #define PROTO_VJUNCOMP 0x002f /* VJ Uncompressed */ 38 #define PROTO_VJCOMP 0x002d /* VJ Compressed */ 39 #define PROTO_MP 0x003d /* Multilink fragment */ 40 #ifndef NOINET6 41 #define PROTO_IPV6 0x0057 /* IPv6 */ 42 #endif 43 #define PROTO_ICOMPD 0x00fb /* Individual link compressed */ 44 #define PROTO_COMPD 0x00fd /* Compressed datagram */ 45 46 #define PROTO_COMPRESSIBLE(p) (((p) & 0xff81) == 0x01) 47 48 #define PROTO_IPCP 0x8021 49 #ifndef NOINET6 50 #define PROTO_IPV6CP 0x8057 51 #endif 52 #define PROTO_ICCP 0x80fb 53 #define PROTO_CCP 0x80fd 54 55 #define PROTO_LCP 0xc021 56 #define PROTO_PAP 0xc023 57 #define PROTO_CBCP 0xc029 58 #define PROTO_LQR 0xc025 59 #define PROTO_CHAP 0xc223 60 61 struct lcp; 62 63 extern int proto_WrapperOctets(struct lcp *, u_short); 64 struct mbuf *proto_Prepend(struct mbuf *, u_short, unsigned, int); 65 66 extern struct layer protolayer; 67