FreeBSD/Linux Kernel Cross Reference
sys/net/if_etherip.h
1 /* $NetBSD: if_etherip.h,v 1.1 2006/11/23 04:07:07 rpaulo Exp $ */
2
3 /*
4 * Copyright (c) 2006, Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 * 3. Neither the name of Hans Rosenfeld nor the names of his
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #ifndef _NET_IF_ETHERIP_H_
33 #define _NET_IF_ETHERIP_H_
34
35 #include <sys/queue.h>
36
37 #if defined(_KERNEL) && !defined(_LKM)
38 #include "opt_inet.h"
39 #endif
40
41 #include <netinet/in.h>
42
43 LIST_HEAD(, etherip_softc) etherip_softc_list;
44
45 struct etherip_softc {
46 struct device sc_dev;
47 struct ifmedia sc_im;
48 struct ethercom sc_ec;
49 struct sockaddr *sc_src; /* tunnel source address */
50 struct sockaddr *sc_dst; /* tunnel destination address */
51 union {
52 #ifdef INET
53 struct route scr_ro; /* cached inet route */
54 #endif
55 #ifdef INET6
56 struct route_in6 scr_ro6; /* cached inet6 route */
57 #endif
58 } sc_scr;
59 long sc_route_expire;
60 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
61 void *sc_si; /* softintr handle */
62 #endif
63 LIST_ENTRY(etherip_softc) etherip_list; /* list of etherip tunnels */
64 };
65 #define sc_ro sc_scr.scr_ro
66 #define sc_ro6 sc_scr.scr_ro6
67
68 struct etherip_header {
69 u_int8_t eip_ver; /* version/reserved */
70 u_int8_t eip_pad; /* required padding byte */
71 };
72
73 #define ETHERIP_VER_VERS_MASK 0x0f
74 #define ETHERIP_VER_RSVD_MASK 0xf0
75 #define ETHERIP_VERSION 0x03
76
77 #define ETHERIP_TTL 30
78 #define ETHERIP_ROUTE_TTL 10
79
80 #endif /* !_NET_IF_ETHERIP_H_ */
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