/* * Copyright (c) 2008-2011 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_ #include <net/if_utun_crypto.h> #ifdef KERNEL_PRIVATE #include <sys/kern_control.h> /* Control block allocated for each kernel control connection */ struct utun_pcb { kern_ctl_ref utun_ctlref; ifnet_t utun_ifp; u_int32_t utun_unit; u_int32_t utun_flags; int utun_ext_ifdata_stats; utun_crypto_ctx_t utun_crypto_ctx[UTUN_CRYPTO_CTX_NUM_DIRS]; }; 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_ENABLE_CRYPTO 6 #define UTUN_OPT_CONFIG_CRYPTO_KEYS 7 #define UTUN_OPT_UNCONFIG_CRYPTO_KEYS 8 #define UTUN_OPT_GENERATE_CRYPTO_KEYS_IDX 9 #define UTUN_OPT_DISABLE_CRYPTO 10 #define UTUN_OPT_STOP_CRYPTO_DATA_TRAFFIC 11 #define UTUN_OPT_START_CRYPTO_DATA_TRAFFIC 12 /* * Flags for by UTUN_OPT_FLAGS */ #define UTUN_FLAGS_NO_OUTPUT 0x0001 #define UTUN_FLAGS_NO_INPUT 0x0002 #define UTUN_FLAGS_CRYPTO 0x0004 #define UTUN_FLAGS_CRYPTO_STOP_DATA_TRAFFIC 0x0008 /* * utun packet type flags */ #define UTUN_PKT_TYPE_KEEPALIVE 0x0001 #define UTUN_PKT_TYPE_IPSEC 0x0002 #define UTUN_PKT_TYPE_DTLS 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