114 lines
4.4 KiB
C
114 lines
4.4 KiB
C
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/*
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* Copyright (c) 2000-2018 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* $KAME: if_gif.h,v 1.7 2000/02/22 14:01:46 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* if_gif.h
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*/
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#ifndef _NET_IF_GIF_H_
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#define _NET_IF_GIF_H_
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#include <sys/appleapiopts.h>
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#include <netinet/in.h>
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/* xxx sigh, why route have struct route instead of pointer? */
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#ifdef BSD_KERNEL_PRIVATE
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extern void gif_init(void);
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struct encaptab;
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struct gif_softc {
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ifnet_t gif_if; /* pointer back to the interface */
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struct sockaddr *gif_psrc; /* Physical src addr */
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struct sockaddr *gif_pdst; /* Physical dst addr */
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#ifdef __APPLE__
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protocol_family_t gif_proto; /* dlil protocol attached */
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#endif
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union {
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struct route gifscr_ro; /* xxx */
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struct route_in6 gifscr_ro6; /* xxx */
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} gifsc_gifscr;
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int gif_flags;
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#define IFGIF_DETACHING 0x1
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int gif_called;
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const struct encaptab *encap_cookie4;
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const struct encaptab *encap_cookie6;
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TAILQ_ENTRY(gif_softc) gif_link; /* all gif's are linked */
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bpf_tap_mode tap_mode;
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bpf_packet_func tap_callback;
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char gif_ifname[IFNAMSIZ];
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decl_lck_mtx_data(, gif_lock); /* lock for gif softc structure */
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};
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#define GIF_LOCK(_sc) lck_mtx_lock(&(_sc)->gif_lock)
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#define GIF_UNLOCK(_sc) lck_mtx_unlock(&(_sc)->gif_lock)
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#define GIF_LOCK_ASSERT(_sc) LCK_MTX_ASSERT(&(_sc)->gif_lock, \
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LCK_MTX_ASSERT_OWNED)
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#define gif_ro gifsc_gifscr.gifscr_ro
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#define gif_ro6 gifsc_gifscr.gifscr_ro6
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#endif /* BSD_KERNEL_PRIVATE */
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#define GIF_MTU (1280) /* Default MTU */
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#define GIF_MTU_MIN (1280) /* Minimum MTU */
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#define GIF_MTU_MAX (8192) /* Maximum MTU */
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#endif /* _NET_IF_GIF_H_ */
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