[apple/xnu.git] / osfmk / kern / syscall_sw.c

/*
 * Copyright (c) 2000-2005 Apple Computer, 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@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */

#include <mach/mach_types.h>
#include <mach/mach_traps.h>

#include <kern/syscall_sw.h>
#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
#include <sys/munge.h>
#endif

/* Forwards */


/*
 *	To add a new entry:
 *		Add an "MACH_TRAP(routine, arg_count, num_32_bit_words, munge_routine)" to the table below.
 *		where,
 *		- routine:		The trap handling routine in the kernel
 *		- arg_count:		The number of arguments for the mach trap (independant of arch/arg size).
 *					This value also defines the number of 64-bit words copied in for a U64 process.
 *		- num_32_bit_words:	The number of 32-bit words to be copied in for a U32 process.
 *		- munge_routine:	The argument munging routine to align input args correctly.
 *
 *		Also, add trap definition to mach/syscall_sw.h and
 *		recompile user library.
 *
 *
 * WARNING:	If you add a trap which requires more than 7
 *		parameters, mach/{machine}/syscall_sw.h and {machine}/trap.c
 *		and/or {machine}/locore.s may need to be modified for it
 *		to work successfully.
 *
 * WARNING:	Don't use numbers 0 through -9.  They (along with
 *		the positive numbers) are reserved for Unix.
 */

int kern_invalid_debug = 0;

/* Include declarations of the trap functions. */

#include <mach/mach_traps.h>
#include <mach/mach_syscalls.h>
#include <kern/syscall_subr.h>

#include <kern/clock.h>
#include <mach/mk_timer.h>

const mach_trap_t	mach_trap_table[MACH_TRAP_TABLE_COUNT] = {
/* 0 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 1 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 2 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 3 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 4 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 5 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 6 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 7 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 8 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 9 */		MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 10 */	MACH_TRAP(_kernelrpc_mach_vm_allocate_trap, 4, 5, munge_wwlw),
/* 11 */	MACH_TRAP(_kernelrpc_mach_vm_purgable_control_trap, 4, 5, munge_wlww),
/* 12 */	MACH_TRAP(_kernelrpc_mach_vm_deallocate_trap, 3, 5, munge_wll),
/* 13 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 14 */	MACH_TRAP(_kernelrpc_mach_vm_protect_trap, 5, 7, munge_wllww),
/* 15 */	MACH_TRAP(_kernelrpc_mach_vm_map_trap, 6, 8, munge_wwllww),
/* 16 */	MACH_TRAP(_kernelrpc_mach_port_allocate_trap, 3, 3, munge_www),
/* 17 */	MACH_TRAP(_kernelrpc_mach_port_destroy_trap, 2, 2, munge_ww),
/* 18 */	MACH_TRAP(_kernelrpc_mach_port_deallocate_trap, 2, 2, munge_ww),
/* 19 */	MACH_TRAP(_kernelrpc_mach_port_mod_refs_trap, 4, 4, munge_wwww),
/* 20 */	MACH_TRAP(_kernelrpc_mach_port_move_member_trap, 3, 3, munge_www),
/* 21 */	MACH_TRAP(_kernelrpc_mach_port_insert_right_trap, 4, 4, munge_wwww),
/* 22 */	MACH_TRAP(_kernelrpc_mach_port_insert_member_trap, 3, 3, munge_www),
/* 23 */	MACH_TRAP(_kernelrpc_mach_port_extract_member_trap, 3, 3, munge_www),
/* 24 */	MACH_TRAP(_kernelrpc_mach_port_construct_trap, 4, 5, munge_wwlw),
/* 25 */	MACH_TRAP(_kernelrpc_mach_port_destruct_trap, 4, 5, munge_wwwl),
/* 26 */	MACH_TRAP(mach_reply_port, 0, 0, NULL),
/* 27 */	MACH_TRAP(thread_self_trap, 0, 0, NULL),
/* 28 */	MACH_TRAP(task_self_trap, 0, 0, NULL),
/* 29 */	MACH_TRAP(host_self_trap, 0, 0, NULL),
/* 30 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 31 */	MACH_TRAP(mach_msg_trap, 7, 7, munge_wwwwwww),
/* 32 */	MACH_TRAP(mach_msg_overwrite_trap, 8, 8, munge_wwwwwwww),
/* 33 */	MACH_TRAP(semaphore_signal_trap, 1, 1, munge_w),
/* 34 */	MACH_TRAP(semaphore_signal_all_trap, 1, 1, munge_w),
/* 35 */	MACH_TRAP(semaphore_signal_thread_trap, 2, 2, munge_ww),
/* 36 */	MACH_TRAP(semaphore_wait_trap, 1, 1, munge_w),
/* 37 */	MACH_TRAP(semaphore_wait_signal_trap, 2, 2, munge_ww),
/* 38 */	MACH_TRAP(semaphore_timedwait_trap, 3, 3, munge_www),
/* 39 */	MACH_TRAP(semaphore_timedwait_signal_trap, 4, 4, munge_wwww),
/* 40 */	MACH_TRAP(_kernelrpc_mach_port_get_attributes_trap, 5, 5, munge_wwwww),
/* 41 */	MACH_TRAP(_kernelrpc_mach_port_guard_trap, 4, 5, munge_wwlw),
/* 42 */	MACH_TRAP(_kernelrpc_mach_port_unguard_trap, 3, 4, munge_wwl),
/* 43 */	MACH_TRAP(mach_generate_activity_id, 3, 3, munge_www),
/* 44 */	MACH_TRAP(task_name_for_pid, 3, 3, munge_www),
/* 45 */ 	MACH_TRAP(task_for_pid, 3, 3, munge_www),
/* 46 */	MACH_TRAP(pid_for_task, 2, 2, munge_ww),
/* 47 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 48 */	MACH_TRAP(macx_swapon, 4, 5, munge_lwww),
/* 49 */	MACH_TRAP(macx_swapoff, 2, 3, munge_lw),
/* 50 */	MACH_TRAP(thread_get_special_reply_port, 0, 0, NULL),
/* 51 */	MACH_TRAP(macx_triggers, 4, 4, munge_wwww),
/* 52 */	MACH_TRAP(macx_backing_store_suspend, 1, 1, munge_w),
/* 53 */	MACH_TRAP(macx_backing_store_recovery, 1, 1, munge_w),
/* 54 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 55 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 56 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 57 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 58 */	MACH_TRAP(pfz_exit, 0, 0, NULL),
/* 59 */ 	MACH_TRAP(swtch_pri, 0, 0, NULL),
/* 60 */	MACH_TRAP(swtch, 0, 0, NULL),
/* 61 */	MACH_TRAP(thread_switch, 3, 3, munge_www),
/* 62 */	MACH_TRAP(clock_sleep_trap, 5, 5, munge_wwwww),
/* 63 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* traps 64 - 95 reserved (debo) */
/* 64 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 65 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 66 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 67 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 68 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 69 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 70 */	MACH_TRAP(host_create_mach_voucher_trap, 4, 4, munge_wwww),
/* 71 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 72 */	MACH_TRAP(mach_voucher_extract_attr_recipe_trap, 4, 4, munge_wwww),
/* 73 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 74 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 75 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 76 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 77 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 78 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 79 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 80 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 81 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 82 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 83 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 84 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 85 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 86 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 87 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 88 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 89 */	MACH_TRAP(mach_timebase_info_trap, 1, 1, munge_w),
/* 90 */	MACH_TRAP(mach_wait_until_trap, 1, 2, munge_l),
/* 91 */	MACH_TRAP(mk_timer_create_trap, 0, 0, NULL),
/* 92 */	MACH_TRAP(mk_timer_destroy_trap, 1, 1, munge_w),
/* 93 */	MACH_TRAP(mk_timer_arm_trap, 2, 3, munge_wl),
/* 94 */	MACH_TRAP(mk_timer_cancel_trap, 2, 2, munge_ww),
/* 95 */	MACH_TRAP(mk_timer_arm_leeway_trap, 4, 6, munge_wlll),
/* traps 64 - 95 reserved (debo) */
/* 96 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 97 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 98 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 99 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* traps 100-107 reserved for iokit (esb) */ 
/* 100 */	MACH_TRAP(iokit_user_client_trap, 8, 8, munge_wwwwwwww),
/* 101 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 102 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 103 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 104 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 105 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 106 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 107 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* traps 108-127 unused */			
/* 108 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 109 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 110 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 111 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 112 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 113 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 114 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 115 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 116 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 117 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 118 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 119 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 120 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 121 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 122 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 123 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 124 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 125 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 126 */	MACH_TRAP(kern_invalid, 0, 0, NULL),
/* 127 */	MACH_TRAP(kern_invalid, 0, 0, NULL),			
};

const char * mach_syscall_name_table[MACH_TRAP_TABLE_COUNT] = {
/* 0 */		"kern_invalid",
/* 1 */		"kern_invalid",
/* 2 */		"kern_invalid",
/* 3 */		"kern_invalid",
/* 4 */		"kern_invalid",
/* 5 */		"kern_invalid",
/* 6 */		"kern_invalid",
/* 7 */		"kern_invalid",
/* 8 */		"kern_invalid",
/* 9 */		"kern_invalid",
/* 10 */	"_kernelrpc_mach_vm_allocate_trap",
/* 11 */	"kern_invalid",
/* 12 */	"_kernelrpc_mach_vm_deallocate_trap",
/* 13 */	"kern_invalid",
/* 14 */	"_kernelrpc_mach_vm_protect_trap",
/* 15 */	"_kernelrpc_mach_vm_map_trap",
/* 16 */	"_kernelrpc_mach_port_allocate_trap",
/* 17 */	"_kernelrpc_mach_port_destroy_trap",
/* 18 */	"_kernelrpc_mach_port_deallocate_trap",
/* 19 */	"_kernelrpc_mach_port_mod_refs_trap",
/* 20 */	"_kernelrpc_mach_port_move_member_trap",
/* 21 */	"_kernelrpc_mach_port_insert_right_trap",
/* 22 */	"_kernelrpc_mach_port_insert_member_trap",
/* 23 */	"_kernelrpc_mach_port_extract_member_trap",
/* 24 */	"_kernelrpc_mach_port_construct_trap",
/* 25 */	"_kernelrpc_mach_port_destruct_trap",
/* 26 */	"mach_reply_port",
/* 27 */	"thread_self_trap",
/* 28 */	"task_self_trap",
/* 29 */	"host_self_trap",
/* 30 */	"kern_invalid",
/* 31 */	"mach_msg_trap",
/* 32 */	"mach_msg_overwrite_trap",
/* 33 */	"semaphore_signal_trap",
/* 34 */	"semaphore_signal_all_trap",
/* 35 */	"semaphore_signal_thread_trap",
/* 36 */	"semaphore_wait_trap",
/* 37 */	"semaphore_wait_signal_trap",
/* 38 */	"semaphore_timedwait_trap",
/* 39 */	"semaphore_timedwait_signal_trap",
/* 40 */	"kern_invalid",
/* 41 */	"_kernelrpc_mach_port_guard_trap",
/* 42 */	"_kernelrpc_mach_port_unguard_trap",
/* 43 */	"mach_generate_activity_id",
/* 44 */	"task_name_for_pid",
/* 45 */ 	"task_for_pid",
/* 46 */	"pid_for_task",
/* 47 */	"kern_invalid",
/* 48 */	"macx_swapon",
/* 49 */	"macx_swapoff",
/* 50 */	"thread_get_special_reply_port",
/* 51 */	"macx_triggers",
/* 52 */	"macx_backing_store_suspend",
/* 53 */	"macx_backing_store_recovery",
/* 54 */	"kern_invalid",
/* 55 */	"kern_invalid",
/* 56 */	"kern_invalid",
/* 57 */	"kern_invalid",
/* 58 */	"pfz_exit",
/* 59 */ 	"swtch_pri",
/* 60 */	"swtch",
/* 61 */	"thread_switch",
/* 62 */	"clock_sleep_trap",
/* 63 */	"kern_invalid",
/* traps 64 - 95 reserved (debo) */
/* 64 */	"kern_invalid",
/* 65 */	"kern_invalid",
/* 66 */	"kern_invalid",
/* 67 */	"kern_invalid",
/* 68 */	"kern_invalid",
/* 69 */	"kern_invalid",
/* 70 */	"host_create_mach_voucher_trap",
/* 71 */	"kern_invalid",
/* 72 */	"mach_voucher_extract_attr_recipe_trap",
/* 73 */	"kern_invalid",
/* 74 */	"kern_invalid",
/* 75 */	"kern_invalid",
/* 76 */	"kern_invalid",
/* 77 */	"kern_invalid",
/* 78 */	"kern_invalid",
/* 79 */	"kern_invalid",
/* 80 */	"kern_invalid",
/* 81 */	"kern_invalid",
/* 82 */	"kern_invalid",
/* 83 */	"kern_invalid",
/* 84 */	"kern_invalid",
/* 85 */	"kern_invalid",
/* 86 */	"kern_invalid",
/* 87 */	"kern_invalid",
/* 88 */	"kern_invalid",
/* 89 */	"mach_timebase_info_trap",
/* 90 */	"mach_wait_until_trap",
/* 91 */	"mk_timer_create_trap",
/* 92 */	"mk_timer_destroy_trap",
/* 93 */	"mk_timer_arm_trap",
/* 94 */	"mk_timer_cancel_trap",
/* 95 */	"kern_invalid",
/* traps 64 - 95 reserved (debo) */
/* 96 */	"kern_invalid",
/* 97 */	"kern_invalid",
/* 98 */	"kern_invalid",
/* 99 */	"kern_invalid",
/* traps 100-107 reserved for iokit (esb) */ 
/* 100 */	"iokit_user_client_trap",
/* 101 */	"kern_invalid",
/* 102 */	"kern_invalid",
/* 103 */	"kern_invalid",
/* 104 */	"kern_invalid",
/* 105 */	"kern_invalid",
/* 106 */	"kern_invalid",
/* 107 */	"kern_invalid",
/* traps 108-127 unused */			
/* 108 */	"kern_invalid",
/* 109 */	"kern_invalid",
/* 110 */	"kern_invalid",
/* 111 */	"kern_invalid",
/* 112 */	"kern_invalid",
/* 113 */	"kern_invalid",
/* 114 */	"kern_invalid",
/* 115 */	"kern_invalid",
/* 116 */	"kern_invalid",
/* 117 */	"kern_invalid",
/* 118 */	"kern_invalid",
/* 119 */	"kern_invalid",
/* 120 */	"kern_invalid",
/* 121 */	"kern_invalid",
/* 122 */	"kern_invalid",
/* 123 */	"kern_invalid",
/* 124 */	"kern_invalid",
/* 125 */	"kern_invalid",
/* 126 */	"kern_invalid",
/* 127 */	"kern_invalid",
};

int	mach_trap_count = (sizeof(mach_trap_table) / sizeof(mach_trap_table[0]));

kern_return_t
kern_invalid(
	__unused struct kern_invalid_args *args)
{
	if (kern_invalid_debug) Debugger("kern_invalid mach trap");
	return(KERN_INVALID_ARGUMENT);
}
Commit	Line	Data
1c79356b	1	/*
0c530ab8	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	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.
8f6c56a5	14	*
2d21ac55 A	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
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	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.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56	/*
	57	*/
	58
	59	#include <mach/mach_types.h>
91447636	60	#include <mach/mach_traps.h>
1c79356b A	61
1c79356b A	62	#include <kern/syscall_sw.h>
3e170ce0	63	#if CONFIG_REQUIRES_U32_MUNGING \|\| (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
316670eb	64	#include <sys/munge.h>
fe8ab488	65	#endif
1c79356b A	66
1c79356b A	67	/* Forwards */
91447636	68
1c79356b A	69
	70	/*
	71	* To add a new entry:
39236c6e A	72	* Add an "MACH_TRAP(routine, arg_count, num_32_bit_words, munge_routine)" to the table below.
	73	* where,
	74	* - routine: The trap handling routine in the kernel
	75	* - arg_count: The number of arguments for the mach trap (independant of arch/arg size).
	76	* This value also defines the number of 64-bit words copied in for a U64 process.
	77	* - num_32_bit_words: The number of 32-bit words to be copied in for a U32 process.
	78	* - munge_routine: The argument munging routine to align input args correctly.
1c79356b	79	*
39236c6e	80	* Also, add trap definition to mach/syscall_sw.h and
1c79356b A	81	* recompile user library.
1c79356b A	82	*
39236c6e	83	*
1c79356b A	84	* WARNING: If you add a trap which requires more than 7
	85	* parameters, mach/{machine}/syscall_sw.h and {machine}/trap.c
	86	* and/or {machine}/locore.s may need to be modified for it
	87	* to work successfully.
	88	*
	89	* WARNING: Don't use numbers 0 through -9. They (along with
	90	* the positive numbers) are reserved for Unix.
	91	*/
	92
	93	int kern_invalid_debug = 0;
	94
	95	/* Include declarations of the trap functions. */
	96
	97	#include <mach/mach_traps.h>
	98	#include <mach/mach_syscalls.h>
	99	#include <kern/syscall_subr.h>
	100
	101	#include <kern/clock.h>
	102	#include <mach/mk_timer.h>
	103
316670eb	104	const mach_trap_t mach_trap_table[MACH_TRAP_TABLE_COUNT] = {
39236c6e A	105	/* 0 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	106	/* 1 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	107	/* 2 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	108	/* 3 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	109	/* 4 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	110	/* 5 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	111	/* 6 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	112	/* 7 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	113	/* 8 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	114	/* 9 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	115	/* 10 */ MACH_TRAP(_kernelrpc_mach_vm_allocate_trap, 4, 5, munge_wwlw),
39037602	116	/* 11 */ MACH_TRAP(_kernelrpc_mach_vm_purgable_control_trap, 4, 5, munge_wlww),
39236c6e A	117	/* 12 */ MACH_TRAP(_kernelrpc_mach_vm_deallocate_trap, 3, 5, munge_wll),
	118	/* 13 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	119	/* 14 */ MACH_TRAP(_kernelrpc_mach_vm_protect_trap, 5, 7, munge_wllww),
	120	/* 15 */ MACH_TRAP(_kernelrpc_mach_vm_map_trap, 6, 8, munge_wwllww),
	121	/* 16 */ MACH_TRAP(_kernelrpc_mach_port_allocate_trap, 3, 3, munge_www),
	122	/* 17 */ MACH_TRAP(_kernelrpc_mach_port_destroy_trap, 2, 2, munge_ww),
	123	/* 18 */ MACH_TRAP(_kernelrpc_mach_port_deallocate_trap, 2, 2, munge_ww),
	124	/* 19 */ MACH_TRAP(_kernelrpc_mach_port_mod_refs_trap, 4, 4, munge_wwww),
	125	/* 20 */ MACH_TRAP(_kernelrpc_mach_port_move_member_trap, 3, 3, munge_www),
	126	/* 21 */ MACH_TRAP(_kernelrpc_mach_port_insert_right_trap, 4, 4, munge_wwww),
	127	/* 22 */ MACH_TRAP(_kernelrpc_mach_port_insert_member_trap, 3, 3, munge_www),
	128	/* 23 */ MACH_TRAP(_kernelrpc_mach_port_extract_member_trap, 3, 3, munge_www),
	129	/* 24 */ MACH_TRAP(_kernelrpc_mach_port_construct_trap, 4, 5, munge_wwlw),
	130	/* 25 */ MACH_TRAP(_kernelrpc_mach_port_destruct_trap, 4, 5, munge_wwwl),
	131	/* 26 */ MACH_TRAP(mach_reply_port, 0, 0, NULL),
	132	/* 27 */ MACH_TRAP(thread_self_trap, 0, 0, NULL),
	133	/* 28 */ MACH_TRAP(task_self_trap, 0, 0, NULL),
	134	/* 29 */ MACH_TRAP(host_self_trap, 0, 0, NULL),
	135	/* 30 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	136	/* 31 */ MACH_TRAP(mach_msg_trap, 7, 7, munge_wwwwwww),
	137	/* 32 */ MACH_TRAP(mach_msg_overwrite_trap, 8, 8, munge_wwwwwwww),
	138	/* 33 */ MACH_TRAP(semaphore_signal_trap, 1, 1, munge_w),
	139	/* 34 */ MACH_TRAP(semaphore_signal_all_trap, 1, 1, munge_w),
	140	/* 35 */ MACH_TRAP(semaphore_signal_thread_trap, 2, 2, munge_ww),
	141	/* 36 */ MACH_TRAP(semaphore_wait_trap, 1, 1, munge_w),
	142	/* 37 */ MACH_TRAP(semaphore_wait_signal_trap, 2, 2, munge_ww),
	143	/* 38 */ MACH_TRAP(semaphore_timedwait_trap, 3, 3, munge_www),
	144	/* 39 */ MACH_TRAP(semaphore_timedwait_signal_trap, 4, 4, munge_wwww),
d9a64523	145	/* 40 */ MACH_TRAP(_kernelrpc_mach_port_get_attributes_trap, 5, 5, munge_wwwww),
39236c6e A	146	/* 41 */ MACH_TRAP(_kernelrpc_mach_port_guard_trap, 4, 5, munge_wwlw),
39236c6e A	147	/* 42 */ MACH_TRAP(_kernelrpc_mach_port_unguard_trap, 3, 4, munge_wwl),
39037602	148	/* 43 */ MACH_TRAP(mach_generate_activity_id, 3, 3, munge_www),
39236c6e A	149	/* 44 */ MACH_TRAP(task_name_for_pid, 3, 3, munge_www),
	150	/* 45 */ MACH_TRAP(task_for_pid, 3, 3, munge_www),
	151	/* 46 */ MACH_TRAP(pid_for_task, 2, 2, munge_ww),
	152	/* 47 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	153	/* 48 */ MACH_TRAP(macx_swapon, 4, 5, munge_lwww),
	154	/* 49 */ MACH_TRAP(macx_swapoff, 2, 3, munge_lw),
5ba3f43e	155	/* 50 */ MACH_TRAP(thread_get_special_reply_port, 0, 0, NULL),
39236c6e A	156	/* 51 */ MACH_TRAP(macx_triggers, 4, 4, munge_wwww),
	157	/* 52 */ MACH_TRAP(macx_backing_store_suspend, 1, 1, munge_w),
	158	/* 53 */ MACH_TRAP(macx_backing_store_recovery, 1, 1, munge_w),
	159	/* 54 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	160	/* 55 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	161	/* 56 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	162	/* 57 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	163	/* 58 */ MACH_TRAP(pfz_exit, 0, 0, NULL),
	164	/* 59 */ MACH_TRAP(swtch_pri, 0, 0, NULL),
	165	/* 60 */ MACH_TRAP(swtch, 0, 0, NULL),
	166	/* 61 */ MACH_TRAP(thread_switch, 3, 3, munge_www),
	167	/* 62 */ MACH_TRAP(clock_sleep_trap, 5, 5, munge_wwwww),
	168	/* 63 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
1c79356b	169	/* traps 64 - 95 reserved (debo) */
39236c6e A	170	/* 64 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	171	/* 65 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	172	/* 66 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	173	/* 67 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	174	/* 68 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	175	/* 69 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
39037602	176	/* 70 */ MACH_TRAP(host_create_mach_voucher_trap, 4, 4, munge_wwww),
39236c6e	177	/* 71 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
39037602	178	/* 72 */ MACH_TRAP(mach_voucher_extract_attr_recipe_trap, 4, 4, munge_wwww),
39236c6e A	179	/* 73 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	180	/* 74 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	181	/* 75 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	182	/* 76 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	183	/* 77 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	184	/* 78 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	185	/* 79 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	186	/* 80 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	187	/* 81 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	188	/* 82 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	189	/* 83 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	190	/* 84 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	191	/* 85 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	192	/* 86 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	193	/* 87 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	194	/* 88 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	195	/* 89 */ MACH_TRAP(mach_timebase_info_trap, 1, 1, munge_w),
	196	/* 90 */ MACH_TRAP(mach_wait_until_trap, 1, 2, munge_l),
	197	/* 91 */ MACH_TRAP(mk_timer_create_trap, 0, 0, NULL),
	198	/* 92 */ MACH_TRAP(mk_timer_destroy_trap, 1, 1, munge_w),
	199	/* 93 */ MACH_TRAP(mk_timer_arm_trap, 2, 3, munge_wl),
813fb2f6 A	200	/* 94 */ MACH_TRAP(mk_timer_cancel_trap, 2, 2, munge_ww),
813fb2f6 A	201	/* 95 */ MACH_TRAP(mk_timer_arm_leeway_trap, 4, 6, munge_wlll),
1c79356b	202	/* traps 64 - 95 reserved (debo) */
39236c6e A	203	/* 96 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	204	/* 97 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	205	/* 98 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	206	/* 99 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
1c79356b	207	/* traps 100-107 reserved for iokit (esb) */
39236c6e A	208	/* 100 */ MACH_TRAP(iokit_user_client_trap, 8, 8, munge_wwwwwwww),
	209	/* 101 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	210	/* 102 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	211	/* 103 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	212	/* 104 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	213	/* 105 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	214	/* 106 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	215	/* 107 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
91447636	216	/* traps 108-127 unused */
39236c6e A	217	/* 108 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	218	/* 109 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	219	/* 110 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	220	/* 111 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	221	/* 112 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	222	/* 113 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	223	/* 114 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	224	/* 115 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	225	/* 116 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	226	/* 117 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	227	/* 118 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	228	/* 119 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	229	/* 120 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	230	/* 121 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	231	/* 122 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	232	/* 123 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	233	/* 124 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	234	/* 125 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	235	/* 126 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
	236	/* 127 */ MACH_TRAP(kern_invalid, 0, 0, NULL),
1c79356b A	237	};
1c79356b A	238
b0d623f7 A	239	const char * mach_syscall_name_table[MACH_TRAP_TABLE_COUNT] = {
	240	/* 0 */ "kern_invalid",
	241	/* 1 */ "kern_invalid",
	242	/* 2 */ "kern_invalid",
	243	/* 3 */ "kern_invalid",
	244	/* 4 */ "kern_invalid",
	245	/* 5 */ "kern_invalid",
	246	/* 6 */ "kern_invalid",
	247	/* 7 */ "kern_invalid",
	248	/* 8 */ "kern_invalid",
	249	/* 9 */ "kern_invalid",
316670eb	250	/* 10 */ "_kernelrpc_mach_vm_allocate_trap",
b0d623f7	251	/* 11 */ "kern_invalid",
316670eb	252	/* 12 */ "_kernelrpc_mach_vm_deallocate_trap",
b0d623f7	253	/* 13 */ "kern_invalid",
316670eb	254	/* 14 */ "_kernelrpc_mach_vm_protect_trap",
39236c6e	255	/* 15 */ "_kernelrpc_mach_vm_map_trap",
316670eb A	256	/* 16 */ "_kernelrpc_mach_port_allocate_trap",
	257	/* 17 */ "_kernelrpc_mach_port_destroy_trap",
	258	/* 18 */ "_kernelrpc_mach_port_deallocate_trap",
	259	/* 19 */ "_kernelrpc_mach_port_mod_refs_trap",
	260	/* 20 */ "_kernelrpc_mach_port_move_member_trap",
	261	/* 21 */ "_kernelrpc_mach_port_insert_right_trap",
	262	/* 22 */ "_kernelrpc_mach_port_insert_member_trap",
	263	/* 23 */ "_kernelrpc_mach_port_extract_member_trap",
39236c6e A	264	/* 24 */ "_kernelrpc_mach_port_construct_trap",
39236c6e A	265	/* 25 */ "_kernelrpc_mach_port_destruct_trap",
b0d623f7 A	266	/* 26 */ "mach_reply_port",
	267	/* 27 */ "thread_self_trap",
	268	/* 28 */ "task_self_trap",
	269	/* 29 */ "host_self_trap",
	270	/* 30 */ "kern_invalid",
	271	/* 31 */ "mach_msg_trap",
	272	/* 32 */ "mach_msg_overwrite_trap",
	273	/* 33 */ "semaphore_signal_trap",
	274	/* 34 */ "semaphore_signal_all_trap",
	275	/* 35 */ "semaphore_signal_thread_trap",
	276	/* 36 */ "semaphore_wait_trap",
	277	/* 37 */ "semaphore_wait_signal_trap",
	278	/* 38 */ "semaphore_timedwait_trap",
	279	/* 39 */ "semaphore_timedwait_signal_trap",
	280	/* 40 */ "kern_invalid",
39236c6e A	281	/* 41 */ "_kernelrpc_mach_port_guard_trap",
39236c6e A	282	/* 42 */ "_kernelrpc_mach_port_unguard_trap",
39037602	283	/* 43 */ "mach_generate_activity_id",
b0d623f7 A	284	/* 44 */ "task_name_for_pid",
	285	/* 45 */ "task_for_pid",
	286	/* 46 */ "pid_for_task",
	287	/* 47 */ "kern_invalid",
	288	/* 48 */ "macx_swapon",
	289	/* 49 */ "macx_swapoff",
5ba3f43e	290	/* 50 */ "thread_get_special_reply_port",
b0d623f7 A	291	/* 51 */ "macx_triggers",
	292	/* 52 */ "macx_backing_store_suspend",
	293	/* 53 */ "macx_backing_store_recovery",
	294	/* 54 */ "kern_invalid",
	295	/* 55 */ "kern_invalid",
	296	/* 56 */ "kern_invalid",
	297	/* 57 */ "kern_invalid",
	298	/* 58 */ "pfz_exit",
	299	/* 59 */ "swtch_pri",
	300	/* 60 */ "swtch",
	301	/* 61 */ "thread_switch",
	302	/* 62 */ "clock_sleep_trap",
	303	/* 63 */ "kern_invalid",
	304	/* traps 64 - 95 reserved (debo) */
	305	/* 64 */ "kern_invalid",
	306	/* 65 */ "kern_invalid",
	307	/* 66 */ "kern_invalid",
	308	/* 67 */ "kern_invalid",
	309	/* 68 */ "kern_invalid",
	310	/* 69 */ "kern_invalid",
39037602	311	/* 70 */ "host_create_mach_voucher_trap",
b0d623f7	312	/* 71 */ "kern_invalid",
39037602	313	/* 72 */ "mach_voucher_extract_attr_recipe_trap",
b0d623f7 A	314	/* 73 */ "kern_invalid",
	315	/* 74 */ "kern_invalid",
	316	/* 75 */ "kern_invalid",
	317	/* 76 */ "kern_invalid",
	318	/* 77 */ "kern_invalid",
	319	/* 78 */ "kern_invalid",
	320	/* 79 */ "kern_invalid",
	321	/* 80 */ "kern_invalid",
	322	/* 81 */ "kern_invalid",
	323	/* 82 */ "kern_invalid",
	324	/* 83 */ "kern_invalid",
	325	/* 84 */ "kern_invalid",
	326	/* 85 */ "kern_invalid",
	327	/* 86 */ "kern_invalid",
	328	/* 87 */ "kern_invalid",
	329	/* 88 */ "kern_invalid",
	330	/* 89 */ "mach_timebase_info_trap",
	331	/* 90 */ "mach_wait_until_trap",
	332	/* 91 */ "mk_timer_create_trap",
	333	/* 92 */ "mk_timer_destroy_trap",
	334	/* 93 */ "mk_timer_arm_trap",
	335	/* 94 */ "mk_timer_cancel_trap",
	336	/* 95 */ "kern_invalid",
	337	/* traps 64 - 95 reserved (debo) */
	338	/* 96 */ "kern_invalid",
	339	/* 97 */ "kern_invalid",
	340	/* 98 */ "kern_invalid",
	341	/* 99 */ "kern_invalid",
	342	/* traps 100-107 reserved for iokit (esb) */
fe8ab488	343	/* 100 */ "iokit_user_client_trap",
b0d623f7 A	344	/* 101 */ "kern_invalid",
	345	/* 102 */ "kern_invalid",
	346	/* 103 */ "kern_invalid",
	347	/* 104 */ "kern_invalid",
	348	/* 105 */ "kern_invalid",
	349	/* 106 */ "kern_invalid",
	350	/* 107 */ "kern_invalid",
	351	/* traps 108-127 unused */
	352	/* 108 */ "kern_invalid",
	353	/* 109 */ "kern_invalid",
	354	/* 110 */ "kern_invalid",
	355	/* 111 */ "kern_invalid",
	356	/* 112 */ "kern_invalid",
	357	/* 113 */ "kern_invalid",
	358	/* 114 */ "kern_invalid",
	359	/* 115 */ "kern_invalid",
	360	/* 116 */ "kern_invalid",
	361	/* 117 */ "kern_invalid",
	362	/* 118 */ "kern_invalid",
	363	/* 119 */ "kern_invalid",
	364	/* 120 */ "kern_invalid",
	365	/* 121 */ "kern_invalid",
	366	/* 122 */ "kern_invalid",
	367	/* 123 */ "kern_invalid",
	368	/* 124 */ "kern_invalid",
	369	/* 125 */ "kern_invalid",
	370	/* 126 */ "kern_invalid",
	371	/* 127 */ "kern_invalid",
	372	};
	373
1c79356b A	374	int mach_trap_count = (sizeof(mach_trap_table) / sizeof(mach_trap_table[0]));
1c79356b A	375
1c79356b	376	kern_return_t
91447636 A	377	kern_invalid(
91447636 A	378	__unused struct kern_invalid_args *args)
1c79356b A	379	{
	380	if (kern_invalid_debug) Debugger("kern_invalid mach trap");
	381	return(KERN_INVALID_ARGUMENT);
	382	}
	383