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if_utun.h
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if_utun.h
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/*
* Copyright (c) 2008-2019 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _NET_IF_UTUN_H_
#define _NET_IF_UTUN_H_
#ifdef KERNEL_PRIVATE
#include <sys/kern_control.h>
void* utun_alloc(size_t size);
void utun_free(void *ptr);
errno_t utun_register_control(void);
#endif
/*
* Name registered by the utun kernel control
*/
#define UTUN_CONTROL_NAME "com.apple.net.utun_control"
/*
* Socket option names to manage utun
*/
#define UTUN_OPT_FLAGS 1
#define UTUN_OPT_IFNAME 2
#define UTUN_OPT_EXT_IFDATA_STATS 3 /* get|set (type int) */
#define UTUN_OPT_INC_IFDATA_STATS_IN 4 /* set to increment stat counters (type struct utun_stats_param) */
#define UTUN_OPT_INC_IFDATA_STATS_OUT 5 /* set to increment stat counters (type struct utun_stats_param) */
#define UTUN_OPT_SET_DELEGATE_INTERFACE 15 /* set the delegate interface (char[]) */
#define UTUN_OPT_MAX_PENDING_PACKETS 16 /* the number of packets that can be waiting to be read
* from the control socket at a time */
#define UTUN_OPT_ENABLE_CHANNEL 17
#define UTUN_OPT_GET_CHANNEL_UUID 18
#define UTUN_OPT_ENABLE_FLOWSWITCH 19
#define UTUN_OPT_ENABLE_NETIF 20 /* Must be set before connecting */
#define UTUN_OPT_SLOT_SIZE 21 /* Must be set before connecting */
#define UTUN_OPT_NETIF_RING_SIZE 22 /* Must be set before connecting */
#define UTUN_OPT_TX_FSW_RING_SIZE 23 /* Must be set before connecting */
#define UTUN_OPT_RX_FSW_RING_SIZE 24 /* Must be set before connecting */
#define UTUN_OPT_KPIPE_TX_RING_SIZE 25 /* Must be set before connecting */
#define UTUN_OPT_KPIPE_RX_RING_SIZE 26 /* Must be set before connecting */
#define UTUN_OPT_ATTACH_FLOWSWITCH 27 /* Must be set before connecting */
/*
* Flags for by UTUN_OPT_FLAGS
*/
#define UTUN_FLAGS_NO_OUTPUT 0x0001
#define UTUN_FLAGS_NO_INPUT 0x0002
#define UTUN_FLAGS_ENABLE_PROC_UUID 0x0004
/*
* utun stats parameter structure
*/
struct utun_stats_param {
u_int64_t utsp_packets;
u_int64_t utsp_bytes;
u_int64_t utsp_errors;
};
#endif