| | 1 | /* |
| | 2 | * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| | 7 | * |
| | 8 | * This file contains Original Code and/or Modifications of Original Code |
| | 9 | * as defined in and that are subject to the Apple Public Source License |
| | 10 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 11 | * compliance with the License. Please obtain a copy of the License at |
| | 12 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 13 | * file. |
| | 14 | * |
| | 15 | * The Original Code and all software distributed under the License are |
| | 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 20 | * Please see the License for the specific language governing rights and |
| | 21 | * limitations under the License. |
| | 22 | * |
| | 23 | * @APPLE_LICENSE_HEADER_END@ |
| | 24 | */ |
| | 25 | /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ |
| | 26 | /*- |
| | 27 | * Copyright (c) 1982, 1988, 1991, 1993 |
| | 28 | * The Regents of the University of California. All rights reserved. |
| | 29 | * (c) UNIX System Laboratories, Inc. |
| | 30 | * All or some portions of this file are derived from material licensed |
| | 31 | * to the University of California by American Telephone and Telegraph |
| | 32 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with |
| | 33 | * the permission of UNIX System Laboratories, Inc. |
| | 34 | * |
| | 35 | * Redistribution and use in source and binary forms, with or without |
| | 36 | * modification, are permitted provided that the following conditions |
| | 37 | * are met: |
| | 38 | * 1. Redistributions of source code must retain the above copyright |
| | 39 | * notice, this list of conditions and the following disclaimer. |
| | 40 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 41 | * notice, this list of conditions and the following disclaimer in the |
| | 42 | * documentation and/or other materials provided with the distribution. |
| | 43 | * 3. All advertising materials mentioning features or use of this software |
| | 44 | * must display the following acknowledgement: |
| | 45 | * This product includes software developed by the University of |
| | 46 | * California, Berkeley and its contributors. |
| | 47 | * 4. Neither the name of the University nor the names of its contributors |
| | 48 | * may be used to endorse or promote products derived from this software |
| | 49 | * without specific prior written permission. |
| | 50 | * |
| | 51 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 52 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 53 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 54 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 55 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 56 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 57 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 59 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 60 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 61 | * SUCH DAMAGE. |
| | 62 | * |
| | 63 | * @(#)systm.h 8.7 (Berkeley) 3/29/95 |
| | 64 | */ |
| | 65 | |
| | 66 | /* |
| | 67 | * The `securelevel' variable controls the security level of the system. |
| | 68 | * It can only be decreased by process 1 (/sbin/init). |
| | 69 | * |
| | 70 | * Security levels are as follows: |
| | 71 | * -1 permannently insecure mode - always run system in level 0 mode. |
| | 72 | * 0 insecure mode - immutable and append-only flags make be turned off. |
| | 73 | * All devices may be read or written subject to permission modes. |
| | 74 | * 1 secure mode - immutable and append-only flags may not be changed; |
| | 75 | * raw disks of mounted filesystems, /dev/mem, and /dev/kmem are |
| | 76 | * read-only. |
| | 77 | * 2 highly secure mode - same as (1) plus raw disks are always |
| | 78 | * read-only whether mounted or not. This level precludes tampering |
| | 79 | * with filesystems by unmounting them, but also inhibits running |
| | 80 | * newfs while the system is secured. |
| | 81 | * |
| | 82 | * In normal operation, the system runs in level 0 mode while single user |
| | 83 | * and in level 1 mode while multiuser. If level 2 mode is desired while |
| | 84 | * running multiuser, it can be set in the multiuser startup script |
| | 85 | * (/etc/rc.local) using sysctl(1). If it is desired to run the system |
| | 86 | * in level 0 mode while multiuser, initialize the variable securelevel |
| | 87 | * in /sys/kern/kern_sysctl.c to -1. Note that it is NOT initialized to |
| | 88 | * zero as that would allow the vmunix binary to be patched to -1. |
| | 89 | * Without initialization, securelevel loads in the BSS area which only |
| | 90 | * comes into existence when the kernel is loaded and hence cannot be |
| | 91 | * patched by a stalking hacker. |
| | 92 | */ |
| | 93 | |
| | 94 | #ifndef _SYS_SYSTM_H_ |
| | 95 | #define _SYS_SYSTM_H_ |
| | 96 | |
| | 97 | #include <sys/appleapiopts.h> |
| | 98 | #include <sys/cdefs.h> |
| | 99 | #include <sys/types.h> |
| | 100 | #include <sys/time.h> |
| | 101 | #include <sys/tty.h> |
| | 102 | #include <sys/vm.h> |
| | 103 | #include <sys/proc.h> |
| | 104 | #include <sys/linker_set.h> |
| | 105 | __BEGIN_DECLS |
| | 106 | #include <kern/thread.h> |
| | 107 | __END_DECLS |
| | 108 | |
| | 109 | #ifdef __APPLE_API_PRIVATE |
| | 110 | extern int securelevel; /* system security level */ |
| | 111 | extern const char *panicstr; /* panic message */ |
| | 112 | extern char version[]; /* system version */ |
| | 113 | extern char copyright[]; /* system copyright */ |
| | 114 | |
| | 115 | |
| | 116 | extern struct sysent { /* system call table */ |
| | 117 | int16_t sy_narg; /* number of args */ |
| | 118 | int8_t sy_parallel;/* can execute in parallel */ |
| | 119 | int8_t sy_funnel; /* funnel type */ |
| | 120 | int32_t (*sy_call)(); /* implementing function */ |
| | 121 | } sysent[]; |
| | 122 | extern int nsysent; |
| | 123 | |
| | 124 | extern int boothowto; /* reboot flags, from console subsystem */ |
| | 125 | extern int show_space; |
| | 126 | |
| | 127 | extern int nblkdev; /* number of entries in bdevsw */ |
| | 128 | extern int nchrdev; /* number of entries in cdevsw */ |
| | 129 | extern dev_t rootdev; /* root device */ |
| | 130 | extern struct vnode *rootvp; /* vnode equivalent to above */ |
| | 131 | #endif /* __APPLE_API_PRIVATE */ |
| | 132 | |
| | 133 | #ifdef __APPLE_API_UNSTABLE |
| | 134 | #define NO_FUNNEL 0 |
| | 135 | #define KERNEL_FUNNEL 1 |
| | 136 | #define NETWORK_FUNNEL 2 |
| | 137 | |
| | 138 | extern funnel_t * kernel_flock; |
| | 139 | extern funnel_t * network_flock; |
| | 140 | #endif /* __APPLE_API_UNSTABLE */ |
| | 141 | |
| | 142 | #define SYSINIT(a,b,c,d,e) |
| | 143 | #define MALLOC_DEFINE(a,b,c) |
| | 144 | |
| | 145 | #define getenv_int(a,b) (*b = 0) |
| | 146 | #define KASSERT(exp,msg) |
| | 147 | |
| | 148 | /* |
| | 149 | * General function declarations. |
| | 150 | */ |
| | 151 | __BEGIN_DECLS |
| | 152 | int nullop __P((void)); |
| | 153 | int enodev (); /* avoid actual prototype for multiple use */ |
| | 154 | void enodev_strat(); |
| | 155 | int nulldev(); |
| | 156 | int enoioctl __P((void)); |
| | 157 | int enxio __P((void)); |
| | 158 | int eopnotsupp __P((void)); |
| | 159 | int einval __P((void)); |
| | 160 | |
| | 161 | #ifdef __APPLE_API_UNSTABLE |
| | 162 | int seltrue __P((dev_t dev, int which, struct proc *p)); |
| | 163 | #endif /* __APPLE_API_UNSTABLE */ |
| | 164 | |
| | 165 | void *hashinit __P((int count, int type, u_long *hashmask)); |
| | 166 | int nosys __P((struct proc *, void *, register_t *)); |
| | 167 | |
| | 168 | #ifdef __GNUC__ |
| | 169 | volatile void panic __P((const char *, ...)); |
| | 170 | #else |
| | 171 | void panic __P((const char *, ...)); |
| | 172 | #endif |
| | 173 | void tablefull __P((const char *)); |
| | 174 | void log __P((int, const char *, ...)); |
| | 175 | void kprintf __P((const char *, ...)); |
| | 176 | void ttyprintf __P((struct tty *, const char *, ...)); |
| | 177 | |
| | 178 | int kvprintf __P((char const *, void (*)(int, void*), void *, int, |
| | 179 | _BSD_VA_LIST_)); |
| | 180 | |
| | 181 | int snprintf __P((char *, size_t, const char *, ...)); |
| | 182 | int sprintf __P((char *buf, const char *, ...)); |
| | 183 | void uprintf __P((const char *, ...)); |
| | 184 | void vprintf __P((const char *, _BSD_VA_LIST_)); |
| | 185 | int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_)); |
| | 186 | int vsprintf __P((char *buf, const char *, _BSD_VA_LIST_)); |
| | 187 | |
| | 188 | void bcopy __P((const void *from, void *to, size_t len)); |
| | 189 | void ovbcopy __P((const void *from, void *to, size_t len)); |
| | 190 | void bzero __P((void *buf, size_t len)); |
| | 191 | |
| | 192 | int copystr __P((void *kfaddr, void *kdaddr, size_t len, size_t *done)); |
| | 193 | int copyinstr __P((void *udaddr, void *kaddr, size_t len, size_t *done)); |
| | 194 | int copyoutstr __P((void *kaddr, void *udaddr, size_t len, size_t *done)); |
| | 195 | int copyin __P((void *udaddr, void *kaddr, size_t len)); |
| | 196 | int copyout __P((void *kaddr, void *udaddr, size_t len)); |
| | 197 | int copywithin __P((void *saddr, void *daddr, size_t len)); |
| | 198 | |
| | 199 | int fubyte __P((void *base)); |
| | 200 | #ifdef notdef |
| | 201 | int fuibyte __P((void *base)); |
| | 202 | #endif |
| | 203 | int subyte __P((void *base, int byte)); |
| | 204 | int suibyte __P((void *base, int byte)); |
| | 205 | long fuword __P((void *base)); |
| | 206 | long fuiword __P((void *base)); |
| | 207 | int suword __P((void *base, long word)); |
| | 208 | int suiword __P((void *base, long word)); |
| | 209 | |
| | 210 | #ifdef __APPLE_API_UNSTABLE |
| | 211 | int hzto __P((struct timeval *tv)); |
| | 212 | typedef void (*timeout_fcn_t)(void *); |
| | 213 | void timeout __P((void (*)(void *), void *arg, int ticks)); |
| | 214 | void untimeout __P((void (*)(void *), void *arg)); |
| | 215 | void realitexpire __P((void *)); |
| | 216 | #endif /* __APPLE_API_UNSTABLE */ |
| | 217 | |
| | 218 | #ifdef __APPLE_API_PRIVATE |
| | 219 | void bsd_hardclock __P((boolean_t usermode, caddr_t pc, int numticks)); |
| | 220 | void gatherstats __P((boolean_t usermode, caddr_t pc)); |
| | 221 | |
| | 222 | void initclocks __P((void)); |
| | 223 | |
| | 224 | void startprofclock __P((struct proc *)); |
| | 225 | void stopprofclock __P((struct proc *)); |
| | 226 | void setstatclockrate __P((int hzrate)); |
| | 227 | #ifdef DDB |
| | 228 | /* debugger entry points */ |
| | 229 | int Debugger __P((void)); /* in DDB only */ |
| | 230 | #endif |
| | 231 | |
| | 232 | void set_fsblocksize __P((struct vnode *)); |
| | 233 | #endif /* __APPLE_API_PRIVATE */ |
| | 234 | |
| | 235 | void addlog __P((const char *, ...)); |
| | 236 | void printf __P((const char *, ...)); |
| | 237 | |
| | 238 | extern boolean_t thread_funnel_switch(int oldfnl, int newfnl); |
| | 239 | |
| | 240 | #include <libkern/libkern.h> |
| | 241 | |
| | 242 | __END_DECLS |
| | 243 | |
| | 244 | #endif /* !_SYS_SYSTM_H_ */ |
| | 245 | |
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