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