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	1	/*
	2	* Copyright (c) 2015 Apple Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
	29	#include <TargetConditionals.h>
	30	#include <machine/cpu_capabilities.h>
	31	#include <mach/kern_return.h>
	32	#include <mach/mach_host.h>
	33	#include <mach/host_priv.h>
	34	#include <sys/types.h>
	35
	36	kern_return_t
	37	host_get_atm_diagnostic_flag(host_t host __unused,
	38	uint32_t *diagnostic_flag)
	39	{
	40	volatile uint32_t diagnostic_flag_address = (volatile uint32_t )(uintptr_t)(_COMM_PAGE_ATM_DIAGNOSTIC_CONFIG);
	41	diagnostic_flag = diagnostic_flag_address;
	42	return KERN_SUCCESS;
	43	}
	44
	45	kern_return_t
	46	host_get_multiuser_config_flags(host_t host __unused,
	47	uint32_t *multiuser_flags)
	48	{
	49	#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
	50	volatile uint32_t multiuser_flag_address = (volatile uint32_t )(uintptr_t)(_COMM_PAGE_MULTIUSER_CONFIG);
	51	multiuser_flags = multiuser_flag_address;
	52	return KERN_SUCCESS;
	53	#else
	54	(void)multiuser_flags;
	55	return KERN_NOT_SUPPORTED;
	56	#endif
	57	}
	58
	59	kern_return_t
	60	host_check_multiuser_mode(host_t host __unused,
	61	uint32_t *multiuser_mode)
	62	{
	63	#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
	64	uint32_t multiuser_flags;
	65	kern_return_t kr;
	66
	67	kr = host_get_multiuser_config_flags(host, &multiuser_flags);
	68	if (kr != KERN_SUCCESS) {
	69	return kr;
	70	}
	71	*multiuser_mode = (multiuser_flags & kIsMultiUserDevice) == kIsMultiUserDevice;
	72	return KERN_SUCCESS;
	73	#else
	74	(void)multiuser_mode;
	75	return KERN_NOT_SUPPORTED;
	76	#endif
	77	}
	78
	79	extern kern_return_t
	80	_kernelrpc_host_create_mach_voucher(mach_port_name_t host,
	81	mach_voucher_attr_raw_recipe_array_t recipes,
	82	mach_voucher_attr_recipe_size_t recipesCnt,
	83	mach_port_name_t *voucher);
	84
	85	kern_return_t
	86	host_create_mach_voucher(mach_port_name_t host,
	87	mach_voucher_attr_raw_recipe_array_t recipes,
	88	mach_voucher_attr_recipe_size_t recipesCnt,
	89	mach_port_name_t *voucher)
	90	{
	91	kern_return_t rv;
	92
	93	rv = host_create_mach_voucher_trap(host, recipes, recipesCnt, voucher);
	94
	95	#ifdef __x86_64__
	96	/* REMOVE once XBS kernel has new trap */
	97	if (rv == ((1 << 24) \| 70)) { /* see mach/i386/syscall_sw.h */
	98	rv = MACH_SEND_INVALID_DEST;
	99	}
	100	#elif defined(__i386__)
	101	/* REMOVE once XBS kernel has new trap */
	102	if (rv == (kern_return_t)(-70)) {
	103	rv = MACH_SEND_INVALID_DEST;
	104	}
	105	#endif
	106
	107	if (rv == MACH_SEND_INVALID_DEST) {
	108	rv = _kernelrpc_host_create_mach_voucher(host, recipes, recipesCnt, voucher);
	109	}
	110
	111	return rv;
	112	}