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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
- /*-
- * Copyright (c) 1982, 1988, 1991, 1993
- * The Regents of the University of California. All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)systm.h 8.7 (Berkeley) 3/29/95
- */
-
- /*
- * The `securelevel' variable controls the security level of the system.
- * It can only be decreased by process 1 (/sbin/init).
- *
- * Security levels are as follows:
- * -1 permannently insecure mode - always run system in level 0 mode.
- * 0 insecure mode - immutable and append-only flags make be turned off.
- * All devices may be read or written subject to permission modes.
- * 1 secure mode - immutable and append-only flags may not be changed;
- * raw disks of mounted filesystems, /dev/mem, and /dev/kmem are
- * read-only.
- * 2 highly secure mode - same as (1) plus raw disks are always
- * read-only whether mounted or not. This level precludes tampering
- * with filesystems by unmounting them, but also inhibits running
- * newfs while the system is secured.
- *
- * In normal operation, the system runs in level 0 mode while single user
- * and in level 1 mode while multiuser. If level 2 mode is desired while
- * running multiuser, it can be set in the multiuser startup script
- * (/etc/rc.local) using sysctl(1). If it is desired to run the system
- * in level 0 mode while multiuser, initialize the variable securelevel
- * in /sys/kern/kern_sysctl.c to -1. Note that it is NOT initialized to
- * zero as that would allow the vmunix binary to be patched to -1.
- * Without initialization, securelevel loads in the BSS area which only
- * comes into existence when the kernel is loaded and hence cannot be
- * patched by a stalking hacker.
- */
-
- #ifndef _SYS_SYSTM_H_
- #define _SYS_SYSTM_H_
-
- #include <sys/cdefs.h>
-
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/tty.h>
- #include <sys/vm.h>
- #include <sys/proc.h>
- #include <sys/linker_set.h>
- __BEGIN_DECLS
- #include <kern/thread.h>
- __END_DECLS
-
- #define KERNEL_FUNNEL 1
- #define NETWORK_FUNNEL 2
-
- extern int securelevel; /* system security level */
- extern const char *panicstr; /* panic message */
- extern char version[]; /* system version */
- extern char copyright[]; /* system copyright */
-
- extern int nblkdev; /* number of entries in bdevsw */
- extern int nchrdev; /* number of entries in cdevsw */
-
- extern dev_t rootdev; /* root device */
- extern struct vnode *rootvp; /* vnode equivalent to above */
-
- extern struct sysent { /* system call table */
- int16_t sy_narg; /* number of args */
- int8_t sy_parallel;/* can execute in parallel */
- int8_t sy_funnel; /* funnel type */
- int32_t (*sy_call)(); /* implementing function */
- } sysent[];
- extern int nsysent;
-
- extern int boothowto; /* reboot flags, from console subsystem */
- extern int show_space;
-
- extern funnel_t * kernel_flock;
- extern funnel_t * network_flock;
-
- #define SYSINIT(a,b,c,d,e)
- #define MALLOC_DEFINE(a,b,c)
-
-
- #define getenv_int(a,b) (*b = 0)
- #define KASSERT(exp,msg)
-
- /*
- * General function declarations.
- */
- __BEGIN_DECLS
- int nullop __P((void));
- int enodev (); /* avoid actual prototype for multiple use */
- void enodev_strat();
- int nulldev();
- int enoioctl __P((void));
- int enxio __P((void));
- int eopnotsupp __P((void));
- int einval __P((void));
- int seltrue __P((dev_t dev, int which, struct proc *p));
- void *hashinit __P((int count, int type, u_long *hashmask));
- int nosys __P((struct proc *, void *, register_t *));
-
- #ifdef __GNUC__
- volatile void panic __P((const char *, ...));
- #else
- void panic __P((const char *, ...));
- #endif
- void tablefull __P((const char *));
- void log __P((int, const char *, ...));
- void kprintf __P((const char *, ...));
- void ttyprintf __P((struct tty *, const char *, ...));
-
- int kvprintf __P((char const *, void (*)(int, void*), void *, int,
- _BSD_VA_LIST_));
-
- int snprintf __P((char *, size_t, const char *, ...));
- int sprintf __P((char *buf, const char *, ...));
- void uprintf __P((const char *, ...));
- void vprintf __P((const char *, _BSD_VA_LIST_));
- int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_));
- int vsprintf __P((char *buf, const char *, _BSD_VA_LIST_));
-
-
- void bcopy __P((const void *from, void *to, size_t len));
- void ovbcopy __P((const void *from, void *to, size_t len));
- void bzero __P((void *buf, size_t len));
-
- int copystr __P((void *kfaddr, void *kdaddr, size_t len, size_t *done));
- int copyinstr __P((void *udaddr, void *kaddr, size_t len, size_t *done));
- int copyoutstr __P((void *kaddr, void *udaddr, size_t len, size_t *done));
- int copyin __P((void *udaddr, void *kaddr, size_t len));
- int copyout __P((void *kaddr, void *udaddr, size_t len));
- int copywithin __P((void *saddr, void *daddr, size_t len));
-
- int fubyte __P((void *base));
- #ifdef notdef
- int fuibyte __P((void *base));
- #endif
- int subyte __P((void *base, int byte));
- int suibyte __P((void *base, int byte));
- long fuword __P((void *base));
- long fuiword __P((void *base));
- int suword __P((void *base, long word));
- int suiword __P((void *base, long word));
-
- int hzto __P((struct timeval *tv));
- typedef void (*timeout_fcn_t)(void *);
- void timeout __P((void (*)(void *), void *arg, int ticks));
- void untimeout __P((void (*)(void *), void *arg));
- void realitexpire __P((void *));
-
- void bsd_hardclock __P((boolean_t usermode, caddr_t pc, int numticks));
- void gatherstats __P((boolean_t usermode, caddr_t pc));
-
- void initclocks __P((void));
-
- void startprofclock __P((struct proc *));
- void stopprofclock __P((struct proc *));
- void setstatclockrate __P((int hzrate));
- void set_fsblocksize __P((struct vnode *));
-
- void addlog __P((const char *, ...));
- void printf __P((const char *, ...));
-
- extern boolean_t thread_funnel_switch(int oldfnl, int newfnl);
-
- #include <libkern/libkern.h>
-
- #ifdef DDB
- /* debugger entry points */
- int Debugger __P((void)); /* in DDB only */
- #endif
-
- __END_DECLS
-
- #endif /* !_SYS_SYSTM_H_ */
-
-