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	1	/*
	2	* Copyright (c) 2000-2016 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	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* NOTICE: This file was modified by McAfee Research in 2004 to introduce
	33	* support for mandatory and extensible security protections. This notice
	34	* is included in support of clause 2.2 (b) of the Apple Public License,
	35	* Version 2.0.
	36	*/
	37
	38	#ifndef _MISC_PROTOS_H_
	39	#define _MISC_PROTOS_H_
	40
	41	#include <stdarg.h>
	42	#include <string.h>
	43	#include <machine/setjmp.h>
	44	#include <mach/boolean.h>
	45	#include <mach/message.h>
	46	#include <mach/machine/vm_types.h>
	47	#include <ipc/ipc_types.h>
	48	#include <kern/debug.h>
	49	#include <libkern/copyio.h>
	50
	51	#ifndef MIN
	52	#define MIN(a, b) (((a)<(b))?(a):(b))
	53	#endif /* MIN */
	54	#ifndef MAX
	55	#define MAX(a, b) (((a)>(b))?(a):(b))
	56	#endif /* MAX */
	57
	58	/* Set a bit in a bit array */
	59	extern void setbit(
	60	int which,
	61	int *bitmap);
	62
	63	/* Clear a bit in a bit array */
	64	extern void clrbit(
	65	int which,
	66	int *bitmap);
	67
	68	/* Find the first set bit in a bit array */
	69	extern int ffsbit(
	70	int *bitmap);
	71	extern int ffs(
	72	unsigned int mask);
	73	extern int ffsll(
	74	unsigned long long mask);
	75
	76	/* Find the last set bit in a bit array */
	77	extern int fls(
	78	unsigned int mask);
	79	extern int flsll(
	80	unsigned long long mask);
	81
	82	/*
	83	* Test if indicated bit is set in bit string.
	84	*/
	85	extern int testbit(
	86	int which,
	87	int *bitmap);
	88
	89	/* Move an aligned 32 or 64-bit word from user space to kernel space
	90	* using a single read instruction
	91	*
	92	* when reading a 32-bit word, the value is 0-extended into the kernel space
	93	* 64-bit buffer passed as `kernel_addr`
	94	* (think `kernel_addr = (uint32_t *)user_addr`)
	95	*/
	96	extern int copyin_word(
	97	const user_addr_t user_addr,
	98	uint64_t *kernel_addr,
	99	vm_size_t nbytes);
	100
	101	/* Move a NUL-terminated string from a user space to kernel space */
	102	extern int copyinstr(
	103	const user_addr_t user_addr,
	104	char *kernel_addr,
	105	vm_size_t max,
	106	vm_size_t *actual);
	107
	108	/* Move arbitrarily-aligned data from a user space to kernel space */
	109	extern int copyinmsg(
	110	const user_addr_t user_addr,
	111	char *kernel_addr,
	112	mach_msg_size_t nbytes);
	113
	114	/* Move arbitrarily-aligned data from a kernel space to user space */
	115	extern int copyoutmsg(
	116	const char *kernel_addr,
	117	user_addr_t user_addr,
	118	mach_msg_size_t nbytes);
	119
	120	/* Invalidate copy window(s) cache */
	121	extern void inval_copy_windows(thread_t);
	122	extern void copy_window_fault(thread_t, vm_map_t, int);
	123
	124	extern int copyin_validate(const user_addr_t, uintptr_t, vm_size_t);
	125	extern int copyout_validate(uintptr_t, const user_addr_t, vm_size_t);
	126
	127	extern int sscanf(const char input, const char fmt, ...) __scanflike(2, 3);
	128
	129	/* sprintf() is being deprecated. Please use snprintf() instead. */
	130	extern integer_t sprintf(char buf, const char fmt, ...) __deprecated;
	131
	132	extern int printf(const char *format, ...) __printflike(1, 2);
	133	extern int vprintf(const char *format, va_list ap);
	134
	135	#if KERNEL_PRIVATE
	136	int _consume_printf_args(int, ...);
	137	#endif
	138
	139	#if CONFIG_NO_PRINTF_STRINGS
	140	#if KERNEL_PRIVATE
	141	#define printf(x, ...) _consume_printf_args( 0, ## __VA_ARGS__ )
	142	#else
	143	#define printf(x, ...) do {} while (0)
	144	#endif
	145	#endif
	146
	147	extern int paniclog_append_noflush(const char *format, ...) __printflike(1, 2);
	148
	149	extern int kdb_printf(const char *format, ...) __printflike(1, 2);
	150
	151	extern int kdb_log(const char *format, ...) __printflike(1, 2);
	152
	153	extern int kdb_printf_unbuffered(const char *format, ...) __printflike(1, 2);
	154
	155	extern void printf_init(void);
	156
	157	extern int snprintf(char , size_t, const char , ...) __printflike(3, 4);
	158
	159	extern void log(int level, char *fmt, ...);
	160
	161	void
	162	_doprnt(
	163	const char *fmt,
	164	va_list *argp,
	165	void (*putc)(char),
	166	int radix);
	167
	168	void
	169	_doprnt_log(
	170	const char *fmt,
	171	va_list *argp,
	172	void (*putc)(char),
	173	int radix);
	174
	175	int
	176	__doprnt(
	177	const char *fmt,
	178	va_list argp,
	179	void (putc)(int, void ),
	180	void *arg,
	181	int radix,
	182	int is_log);
	183
	184	extern void safe_gets(
	185	char *str,
	186	int maxlen);
	187
	188	extern void cnputcusr(char);
	189
	190	extern void cnputsusr(char *, int);
	191
	192	extern void conslog_putc(char);
	193
	194	extern void cons_putc_locked(char);
	195
	196	extern void consdebug_putc(char);
	197
	198	extern void consdebug_log(char);
	199
	200	extern void consdebug_putc_unbuffered(char);
	201
	202	extern void cnputc(char);
	203
	204	extern void cnputc_unbuffered(char);
	205
	206	extern void console_write(char *, int);
	207
	208	extern void console_suspend(void);
	209
	210	extern void console_resume(void);
	211
	212	extern int cngetc(void);
	213
	214	extern int cnmaygetc(void);
	215
	216	extern int _setjmp(
	217	jmp_buf_t *jmp_buf);
	218
	219	extern int _longjmp(
	220	jmp_buf_t *jmp_buf,
	221	int value);
	222
	223	extern void bootstrap_create(void);
	224
	225	#if DIPC
	226	extern boolean_t no_bootstrap_task(void);
	227	extern ipc_port_t get_root_master_device_port(void);
	228	#endif /* DIPC */
	229
	230	extern kern_return_t kernel_set_special_port(
	231	host_priv_t host_priv,
	232	int which,
	233	ipc_port_t port);
	234
	235	extern kern_return_t kernel_get_special_port(
	236	host_priv_t host_priv,
	237	int which,
	238	ipc_port_t *portp);
	239
	240	user_addr_t get_useraddr(void);
	241
	242	/* symbol lookup */
	243	struct kmod_info_t;
	244
	245	extern uint64_t early_random(void);
	246
	247	#endif /* _MISC_PROTOS_H_ */