1/* $OpenBSD: if_enc.h,v 1.13 2021/12/01 21:48:00 deraadt Exp $ */
2
3/*
4 * Copyright (c) 2010 Reyk Floeter <reyk@vantronix.net>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _NET_ENC_H
20#define _NET_ENC_H
21
22#define ENCMTU 1536 /* XXX should be bigger, maybe LOMTU */
23#define ENC_HDRLEN 12
24
25struct enchdr {
26 u_int32_t af;
27 u_int32_t spi;
28 u_int32_t flags; /* similar to mbuf m_flags */
29};
30
31#ifdef _KERNEL
32struct enc_softc {
33 struct ifnet sc_if; /* virtual interface */
34 u_int sc_unit;
35 struct ifaddr sc_ifa; /* needed to attach rtentry */
36};
37
38struct ifnet *enc_getif(u_int, u_int);
39struct ifaddr *enc_getifa(u_int, u_int);
40#endif /* _KERNEL */
41
42#endif /* _NET_ENC_H */