a5140616af
the functions' calls match their definitions. Move them to header files. Reviewed by: jilles (previous version)
137 lines
4.5 KiB
C
137 lines
4.5 KiB
C
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* Copyright (c) 2014 Andrey V. Elsukov <ae@FreeBSD.org>
|
|
* All rights reserved
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Heiko W.Rupp <hwr@pilhuhn.de>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $NetBSD: if_gre.h,v 1.13 2003/11/10 08:51:52 wiz Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NET_IF_GRE_H_
|
|
#define _NET_IF_GRE_H_
|
|
|
|
#ifdef _KERNEL
|
|
/* GRE header according to RFC 2784 and RFC 2890 */
|
|
struct grehdr {
|
|
uint16_t gre_flags; /* GRE flags */
|
|
#define GRE_FLAGS_CP 0x8000 /* checksum present */
|
|
#define GRE_FLAGS_KP 0x2000 /* key present */
|
|
#define GRE_FLAGS_SP 0x1000 /* sequence present */
|
|
#define GRE_FLAGS_MASK (GRE_FLAGS_CP|GRE_FLAGS_KP|GRE_FLAGS_SP)
|
|
uint16_t gre_proto; /* protocol type */
|
|
uint32_t gre_opts[0]; /* optional fields */
|
|
} __packed;
|
|
|
|
#ifdef INET
|
|
struct greip {
|
|
struct ip gi_ip;
|
|
struct grehdr gi_gre;
|
|
} __packed;
|
|
#endif
|
|
|
|
#ifdef INET6
|
|
struct greip6 {
|
|
struct ip6_hdr gi6_ip6;
|
|
struct grehdr gi6_gre;
|
|
} __packed;
|
|
#endif
|
|
|
|
struct gre_softc {
|
|
struct ifnet *gre_ifp;
|
|
LIST_ENTRY(gre_softc) gre_list;
|
|
struct rmlock gre_lock;
|
|
int gre_family; /* AF of delivery header */
|
|
uint32_t gre_iseq;
|
|
uint32_t gre_oseq;
|
|
uint32_t gre_key;
|
|
uint32_t gre_options;
|
|
uint32_t gre_mtu;
|
|
u_int gre_fibnum;
|
|
u_int gre_hlen; /* header size */
|
|
union {
|
|
void *hdr;
|
|
#ifdef INET
|
|
struct greip *gihdr;
|
|
#endif
|
|
#ifdef INET6
|
|
struct greip6 *gi6hdr;
|
|
#endif
|
|
} gre_uhdr;
|
|
const struct encaptab *gre_ecookie;
|
|
};
|
|
#define GRE2IFP(sc) ((sc)->gre_ifp)
|
|
#define GRE_LOCK_INIT(sc) rm_init(&(sc)->gre_lock, "gre softc")
|
|
#define GRE_LOCK_DESTROY(sc) rm_destroy(&(sc)->gre_lock)
|
|
#define GRE_RLOCK_TRACKER struct rm_priotracker gre_tracker
|
|
#define GRE_RLOCK(sc) rm_rlock(&(sc)->gre_lock, &gre_tracker)
|
|
#define GRE_RUNLOCK(sc) rm_runlock(&(sc)->gre_lock, &gre_tracker)
|
|
#define GRE_RLOCK_ASSERT(sc) rm_assert(&(sc)->gre_lock, RA_RLOCKED)
|
|
#define GRE_WLOCK(sc) rm_wlock(&(sc)->gre_lock)
|
|
#define GRE_WUNLOCK(sc) rm_wunlock(&(sc)->gre_lock)
|
|
#define GRE_WLOCK_ASSERT(sc) rm_assert(&(sc)->gre_lock, RA_WLOCKED)
|
|
|
|
#define gre_hdr gre_uhdr.hdr
|
|
#define gre_gihdr gre_uhdr.gihdr
|
|
#define gre_gi6hdr gre_uhdr.gi6hdr
|
|
#define gre_oip gre_gihdr->gi_ip
|
|
#define gre_oip6 gre_gi6hdr->gi6_ip6
|
|
|
|
int gre_input(struct mbuf **, int *, int);
|
|
#ifdef INET
|
|
int in_gre_attach(struct gre_softc *);
|
|
int in_gre_output(struct mbuf *, int, int);
|
|
#endif
|
|
#ifdef INET6
|
|
int in6_gre_attach(struct gre_softc *);
|
|
int in6_gre_output(struct mbuf *, int, int);
|
|
#endif
|
|
/*
|
|
* CISCO uses special type for GRE tunnel created as part of WCCP
|
|
* connection, while in fact those packets are just IPv4 encapsulated
|
|
* into GRE.
|
|
*/
|
|
#define ETHERTYPE_WCCP 0x883E
|
|
#endif /* _KERNEL */
|
|
|
|
#define GRESADDRS _IOW('i', 101, struct ifreq)
|
|
#define GRESADDRD _IOW('i', 102, struct ifreq)
|
|
#define GREGADDRS _IOWR('i', 103, struct ifreq)
|
|
#define GREGADDRD _IOWR('i', 104, struct ifreq)
|
|
#define GRESPROTO _IOW('i' , 105, struct ifreq)
|
|
#define GREGPROTO _IOWR('i', 106, struct ifreq)
|
|
|
|
#define GREGKEY _IOWR('i', 107, struct ifreq)
|
|
#define GRESKEY _IOW('i', 108, struct ifreq)
|
|
#define GREGOPTS _IOWR('i', 109, struct ifreq)
|
|
#define GRESOPTS _IOW('i', 110, struct ifreq)
|
|
|
|
#define GRE_ENABLE_CSUM 0x0001
|
|
#define GRE_ENABLE_SEQ 0x0002
|
|
#define GRE_OPTMASK (GRE_ENABLE_CSUM|GRE_ENABLE_SEQ)
|
|
|
|
#endif /* _NET_IF_GRE_H_ */
|