1/*
2 * Copyright (c) 2000-2021 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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1989, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * This code is derived from software contributed to Berkeley by
34 * Mike Karels at Berkeley Software Design, Inc.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
65 */
66/*
67 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
68 * support for mandatory and extensible security protections. This notice
69 * is included in support of clause 2.2 (b) of the Apple Public License,
70 * Version 2.0.
71 */
72
73#ifndef _SYS_SYSCTL_H_
74#define _SYS_SYSCTL_H_
75
76/*
77 * These are for the eproc structure defined below.
78 */
79#include <sys/cdefs.h>
80
81#include <sys/appleapiopts.h>
82#ifndef KERNEL
83#include <sys/time.h>
84#include <sys/ucred.h>
85#else
86#ifdef XNU_KERNEL_PRIVATE
87#include <kern/startup.h>
88#include <libkern/section_keywords.h>
89#else
90#include <libkern/sysctl.h>
91#include <os/base.h>
92#endif /* XNU_KERNEL_PRIVATE */
93#endif /* KERNEL */
94
95#include <sys/proc.h>
96#include <sys/vm.h>
97
98/*
99 * Definitions for sysctl call. The sysctl call uses a hierarchical name
100 * for objects that can be examined or modified. The name is expressed as
101 * a sequence of integers. Like a file path name, the meaning of each
102 * component depends on its place in the hierarchy. The top-level and kern
103 * identifiers are defined here, and other identifiers are defined in the
104 * respective subsystem header files.
105 */
106
107#define CTL_MAXNAME 12 /* largest number of components supported */
108
109/*
110 * Each subsystem defined by sysctl defines a list of variables
111 * for that subsystem. Each name is either a node with further
112 * levels defined below it, or it is a leaf of some particular
113 * type given below. Each sysctl level defines a set of name/type
114 * pairs to be used by sysctl(1) in manipulating the subsystem.
115 *
116 * When declaring new sysctl names, use the CTLFLAG_LOCKED flag in the
117 * type to indicate that all necessary locking will be handled
118 * within the sysctl.
119 *
120 * Any sysctl defined without CTLFLAG_LOCKED is considered legacy
121 * and will be protected by a global mutex.
122 *
123 * Note: This is not optimal, so it is best to handle locking
124 * yourself, if you are able to do so. A simple design
125 * pattern for use to avoid in a single function known
126 * to potentially be in the paging path ot doing a DMA
127 * to physical memory in a user space process is:
128 *
129 * lock
130 * perform operation vs. local buffer
131 * unlock
132 * SYSCTL_OUT(rey, local buffer, length)
133 *
134 * ...this assumes you are not using a deep call graph
135 * or are unable to pass a local buffer address as a
136 * parameter into your deep call graph.
137 *
138 * Note that very large user buffers can fail the wire
139 * if to do so would require more physical pages than
140 * are available (the caller will get an ENOMEM error,
141 * see sysctl_mem_hold() for details).
142 */
143struct ctlname {
144 char *ctl_name; /* subsystem name */
145 int ctl_type; /* type of name */
146};
147
148#define CTLTYPE 0xf /* Mask for the type */
149#define CTLTYPE_NODE 1 /* name is a node */
150#define CTLTYPE_INT 2 /* name describes an integer */
151#define CTLTYPE_STRING 3 /* name describes a string */
152#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
153#define CTLTYPE_OPAQUE 5 /* name describes a structure */
154#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
155
156#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
157#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
158#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
159#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */
160#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
161#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
162#define CTLFLAG_MASKED 0x04000000 /* deprecated variable, do not display */
163#define CTLFLAG_NOAUTO 0x02000000 /* do not auto-register */
164#define CTLFLAG_KERN 0x01000000 /* valid inside the kernel */
165#define CTLFLAG_LOCKED 0x00800000 /* node will handle locking itself */
166#define CTLFLAG_OID2 0x00400000 /* struct sysctl_oid has version info */
167#if XNU_KERNEL_PRIVATE
168#define CTLFLAG_PERMANENT 0x00200000 /* permanent sysctl_oid */
169#endif
170#define CTLFLAG_EXPERIMENT 0x00100000 /* Allows writing w/ the trial experiment entitlement. */
171
172/*
173 * USE THIS instead of a hardwired number from the categories below
174 * to get dynamically assigned sysctl entries using the linker-set
175 * technology. This is the way nearly all new sysctl variables should
176 * be implemented.
177 *
178 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
179 *
180 * Note that linker set technology will automatically register all nodes
181 * declared like this on kernel initialization, UNLESS they are defined
182 * in I/O-Kit. In this case, you have to call sysctl_register_oid()
183 * manually - just like in a KEXT.
184 */
185#define OID_AUTO (-1)
186#if XNU_KERNEL_PRIVATE
187/*
188 * Used to allow for most of the core kernel sysctl OIDs to be in immutable
189 * memory. The nodes that can be extensible have a fake first node with this
190 * particular oid_number which hangs a second mutable list from this node.
191 *
192 * This node is always first when it is used
193 */
194#define OID_MUTABLE_ANCHOR (INT_MIN)
195#endif
196#define OID_AUTO_START 100 /* conventional */
197
198#ifdef KERNEL
199#define SYSCTL_HANDLER_ARGS \
200 (struct sysctl_oid *oidp __unused, void *arg1 __unused, int arg2 __unused, \
201 struct sysctl_req *req)
202
203
204/*
205 * This describes the access space for a sysctl request. This is needed
206 * so that we can use the interface from the kernel or from user-space.
207 */
208struct sysctl_req {
209 struct proc *p;
210 int lock;
211 user_addr_t oldptr; /* pointer to user supplied buffer */
212 size_t oldlen; /* user buffer length (also returned) */
213 size_t oldidx; /* total data iteratively copied out */
214 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
215 user_addr_t newptr; /* buffer containing new value */
216 size_t newlen; /* length of new value */
217 size_t newidx; /* total data iteratively copied in */
218 int (*newfunc)(struct sysctl_req *, void *, size_t);
219};
220
221SLIST_HEAD(sysctl_oid_list, sysctl_oid);
222
223#define SYSCTL_OID_VERSION 1 /* current OID structure version */
224
225/*
226 * This describes one "oid" in the MIB tree. Potentially more nodes can
227 * be hidden behind it, expanded by the handler.
228 *
229 * NOTES: We implement binary comparibility between CTLFLAG_OID2 and
230 * pre-CTLFLAG_OID2 structure in sysctl_register_oid() and in
231 * sysctl_unregister_oid() using the fact that the fields up
232 * to oid_fmt are unchanged, and that the field immediately
233 * following is on an alignment boundary following a pointer
234 * type and is also a pointer. This lets us get the previous
235 * size of the structure, and the copy-cut-off point, using
236 * the offsetof() language primitive, and these values are
237 * used in conjunction with the fact that earlier and future
238 * statically compiled sysctl_oid structures are declared via
239 * macros. This lets us overload the macros so that the addition
240 * of the CTLFLAG_OID2 in newly compiled code containing sysctl
241 * node declarations, subsequently allowing us to to avoid
242 * changing the KPI used for non-static (un)registration in
243 * KEXTs.
244 *
245 * Non CTLFLAG_OID2 based sysctls are deprecated and unavailable
246 * to non Intel platforms.
247 *
248 * This depends on the fact that people declare SYSCTLs,
249 * rather than declaring sysctl_oid structures. All new code
250 * should avoid declaring struct sysctl_oid's directly without
251 * the macros; the current risk for this is limited to losing
252 * your description field and ending up with a malloc'ed copy,
253 * as if it were a legacy binary static declaration via SYSCTL;
254 * in the future, we may deprecate access to a named structure
255 * type in third party code. Use the macros, or our code will
256 * end up with compile errors when that happens.
257 *
258 * Please try to include a long description of the field in any
259 * new sysctl declarations (all the macros support this). This
260 * field may be the only human readable documentation your users
261 * get for your sysctl.
262 */
263struct sysctl_oid {
264 struct sysctl_oid_list * OS_PTRAUTH_SIGNED_PTR("sysctl_oid.oid_parent") oid_parent;
265 SLIST_ENTRY(sysctl_oid) oid_link;
266 int oid_number;
267 int oid_kind;
268 void *oid_arg1;
269 int oid_arg2;
270 const char *oid_name;
271 int (*oid_handler)SYSCTL_HANDLER_ARGS;
272 const char *oid_fmt;
273 const char *oid_descr; /* offsetof() field / long description */
274 int oid_version;
275 int oid_refcnt;
276};
277
278#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
279#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
280
281typedef int (* sysctl_handler_t) SYSCTL_HANDLER_ARGS;
282
283__BEGIN_DECLS
284
285/* old interface */
286int sysctl_handle_int SYSCTL_HANDLER_ARGS;
287int sysctl_handle_long SYSCTL_HANDLER_ARGS;
288int sysctl_handle_quad SYSCTL_HANDLER_ARGS;
289int sysctl_handle_int2quad SYSCTL_HANDLER_ARGS;
290int sysctl_handle_string SYSCTL_HANDLER_ARGS;
291int sysctl_handle_opaque SYSCTL_HANDLER_ARGS;
292/* new interface */
293int sysctl_io_number(struct sysctl_req *req, long long bigValue, size_t valueSize, void *pValue, int *changed);
294int sysctl_io_string(struct sysctl_req *req, char *pValue, size_t valueSize, int trunc, int *changed);
295int sysctl_io_opaque(struct sysctl_req *req, void *pValue, size_t valueSize, int *changed);
296
297/*
298 * These functions are used to add/remove an oid from the mib.
299 */
300void sysctl_register_oid(struct sysctl_oid *oidp);
301void sysctl_unregister_oid(struct sysctl_oid *oidp);
302
303#define nvram_osenvironment "osenvironment"
304void sysctl_set_osenvironment(unsigned int size, const void* value);
305void sysctl_unblock_osenvironment(void);
306
307/* Deprecated */
308void sysctl_register_fixed(void) __deprecated;
309
310__END_DECLS
311
312/* Declare an oid to allow child oids to be added to it. */
313#define SYSCTL_DECL(name) \
314 extern struct sysctl_oid_list sysctl_##name##_children
315
316/*
317 * Macros to define sysctl entries. Which to use? Pure data that are
318 * returned without modification, SYSCTL_<data type> is for you, like
319 * SYSCTL_QUAD for a 64-bit value. When you want to run a handler of your
320 * own, SYSCTL_PROC.
321 *
322 * parent: parent in name hierarchy (e.g. _kern for "kern")
323 * nbr: ID. Almost certainly OID_AUTO ("pick one for me") for you.
324 * name: name for this particular item (e.g. "thesysctl" for "kern.thesysctl")
325 * kind/access: Control flags (CTLFLAG_*). Some notable options include:
326 * CTLFLAG_ANYBODY: non-root users allowed
327 * CTLFLAG_MASKED: don't show in sysctl listing in userland
328 * CTLFLAG_LOCKED: does own locking (no additional protection needed)
329 * CTLFLAG_KERN: valid inside kernel (best avoided generally)
330 * CTLFLAG_WR: "new" value accepted
331 * a1, a2: entry-data, passed to handler (see specific macros)
332 * Format String: Tells "sysctl" tool how to print data from this entry.
333 * "A" - string
334 * "I" - list of integers. "IU" - list of unsigned integers. space-separated.
335 * "-" - do not print
336 * "L" - longs, as ints with I
337 * "P" - pointer
338 * "Q" - quads
339 * "S","T" - clock info, see sysctl.c in system_cmds (you probably don't need this)
340 * Description: unused
341 */
342
343
344/* This constructs a "raw" MIB oid. */
345#define SYSCTL_STRUCT_INIT(parent, nbr, name, kind, a1, a2, fn, fmt, desc) { \
346 .oid_parent = &sysctl_##parent##_children, \
347 .oid_number = nbr, \
348 .oid_kind = (int)(kind | CTLFLAG_OID2), \
349 .oid_arg1 = a1, \
350 .oid_arg2 = (int)(a2), \
351 .oid_name = #name, \
352 .oid_handler = fn, \
353 .oid_fmt = fmt, \
354 .oid_descr = desc, \
355 .oid_version = SYSCTL_OID_VERSION, \
356 }
357
358#define __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
359 struct sysctl_oid sysctl_##parent##_##name = SYSCTL_STRUCT_INIT(\
360 parent, nbr, name, kind, a1, a2, handler, fmt, descr)
361
362#if XNU_KERNEL_PRIVATE
363
364/*
365 * Core kernel registers sysctls before lockdown and protects those entries
366 * in immutable memory.
367 *
368 * When a node needs to support dynamic extension after lockdown, it needs to be
369 * declared with SYSCTL_EXTENSIBLE_NODE() to insert a dummy "OID_MUTABLE_ANCHOR"
370 * node in this node chain which will allow extensibility.
371 *
372 * OIDs that are to be inserted dynamically based on system properties that
373 * aren't known at compile time, have three options, in increasing order of
374 * unsafety:
375 *
376 * - The OID can use the CTLFLAG_NOAUTO flag. Such entries aren't inserted to
377 * the sysctl tree automatically but will be made read-only at lock down.
378 *
379 * Such entries must be inserted in the STARTUP_SUB_SYSCTL "Middle" phase
380 * using sysctl_register_oid_early().
381 *
382 * - The OID can be always registered and test whether it is ready to operate.
383 * When it is not, it must return ENOENT which simulates an absent entry.
384 *
385 * This however has the downside that the entry is still resolvable as an MIB
386 * or listed in `sysctl -a` when it isn't masked.
387 *
388 * This is acceptable for sysctls that will become valid quickly during boot
389 * (but after lockdown).
390 *
391 * - SYSCTL_OID_MANUAL / SYSCTL_NODE_MANUAL can be used for completely
392 * dynamic/manual oid registration. Such nodes must be registered with
393 * sysctl_register_oid() after lockdown.
394 *
395 * This is the least preferred solution.
396 */
397
398__BEGIN_DECLS
399void sysctl_register_oid_early(struct sysctl_oid *oidp);
400__END_DECLS
401
402#define SYSCTL_OID_MANUAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
403 __XNU_PRIVATE_EXTERN \
404 __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)
405
406#define SYSCTL_NODE_MANUAL(parent, nbr, name, access, handler, descr) \
407 struct sysctl_oid_list sysctl_##parent##_##name##_children; \
408 __XNU_PRIVATE_EXTERN \
409 __SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
410 &sysctl_##parent##_##name##_children, 0, handler, "N", descr);
411
412#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
413 __security_const_late __XNU_PRIVATE_EXTERN \
414 __SYSCTL_OID(parent, nbr, name, CTLFLAG_PERMANENT|kind, \
415 a1, a2, handler, fmt, descr); \
416 __STARTUP_ARG(sysctl_##parent, _##name, \
417 SYSCTL, STARTUP_RANK_SECOND, sysctl_register_oid_early, \
418 &sysctl_##parent##_##name)
419
420#define __SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
421 __security_const_late \
422 struct sysctl_oid_list sysctl_##parent##_##name##_children; \
423 __security_const_late __XNU_PRIVATE_EXTERN \
424 __SYSCTL_OID(parent, nbr, name, CTLFLAG_PERMANENT|CTLTYPE_NODE|access, \
425 &sysctl_##parent##_##name##_children, 0, handler, "N", descr); \
426 __STARTUP_ARG(sysctl_##parent, _##name, \
427 SYSCTL, STARTUP_RANK_FIRST, sysctl_register_oid_early, \
428 &sysctl_##parent##_##name)
429
430#define __SYSCTL_EXTENSION_NODE(name) \
431 static __security_read_write \
432 struct sysctl_oid_list sysctl_##name##_children_mutable; \
433 static __security_const_late \
434 struct sysctl_oid sysctl_##name##_wranchor = { \
435 .oid_parent = &sysctl_##name##_children, \
436 .oid_number = OID_MUTABLE_ANCHOR, \
437 .oid_kind = CTLFLAG_OID2 | CTLFLAG_PERMANENT, \
438 .oid_arg1 = &sysctl_##name##_children_mutable, \
439 .oid_name = "__anchor__(" #name ")", \
440 .oid_version = SYSCTL_OID_VERSION, \
441 }; \
442 __STARTUP_ARG(sysctl_##name, _wranchor, \
443 SYSCTL, STARTUP_RANK_LAST, sysctl_register_oid_early, \
444 &sysctl_##name##_wranchor)
445
446#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
447 __XNU_PRIVATE_EXTERN \
448 __SYSCTL_NODE(parent, nbr, name, access, handler, descr)
449
450#define SYSCTL_EXTENSIBLE_NODE(parent, nbr, name, access, handler, descr) \
451 __SYSCTL_NODE(parent, nbr, name, access, handler, descr); \
452 __SYSCTL_EXTENSION_NODE(parent##_##name)
453#else
454#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
455 __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)
456
457/* This constructs a node from which other oids can hang. */
458#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
459 struct sysctl_oid_list sysctl_##parent##_##name##_children; \
460 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
461 &sysctl_##parent##_##name##_children, 0, handler, "N", descr)
462#endif /* XNU_KERNEL_PRIVATE */
463
464/* Oid for a string. len can be 0 to indicate '\0' termination. */
465#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
466 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
467 arg, len, sysctl_handle_string, "A", descr)
468
469#define SYSCTL_COMPAT_INT(parent, nbr, name, access, ptr, val, descr) \
470 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
471 ptr, val, sysctl_handle_int, "I", descr)
472
473#define SYSCTL_COMPAT_UINT(parent, nbr, name, access, ptr, val, descr) \
474 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
475 ptr, val, sysctl_handle_int, "IU", descr)
476
477/* Oid for an int. If ptr is NULL, val is returned. */
478#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
479 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
480 ptr, val, sysctl_handle_int, "I", descr); \
481 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(int), \
482 "must be integer sized");
483
484/* Oid for an unsigned int. If ptr is NULL, val is returned. */
485#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
486 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
487 ptr, val, sysctl_handle_int, "IU", descr); \
488 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned int), \
489 "must be integer sized");
490
491/* Oid for a long. The pointer must be non NULL. */
492#define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \
493 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
494 ptr, 0, sysctl_handle_long, "L", descr); \
495 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long), \
496 "must be long sized");
497
498/* Oid for a unsigned long. The pointer must be non NULL. */
499#define SYSCTL_ULONG(parent, nbr, name, access, ptr, descr) \
500 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
501 ptr, 0, sysctl_handle_long, "LU", descr); \
502 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned long), \
503 "must be long sized");
504
505/* Oid for a quad. The pointer must be non NULL. */
506#define SYSCTL_QUAD(parent, nbr, name, access, ptr, descr) \
507 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \
508 ptr, 0, sysctl_handle_quad, "Q", descr); \
509 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long long), \
510 "must be long long sized");
511
512/* Oid for an opaque object. Specified by a pointer and a length. */
513#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
514 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
515 ptr, len, sysctl_handle_opaque, fmt, descr)
516
517/* Oid for a struct. Specified by a pointer and a type. */
518#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
519 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
520 ptr, sizeof(struct type), sysctl_handle_opaque, \
521 "S," #type, descr)
522
523/*
524 * Oid for a procedure. Specified by a pointer and an arg.
525 * CTLTYPE_* macros can determine how the "sysctl" tool deals with
526 * input (e.g. converting to int).
527 */
528#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
529 SYSCTL_OID(parent, nbr, name, access, \
530 ptr, arg, handler, fmt, descr)
531
532/*
533 * The EXPERIMENT macros below expose values for on-device experimentation (A/B testing) via Trial.
534 * These values will be set shortly after boot by the KRExperiments framework based on any
535 * active experiments on the device.
536 * Values exposed via these macros are still normal sysctls and can be set by the superuser in the
537 * development or debug kernel. However, on the release kernel they can ONLY be set by processes
538 * with the com.apple.private.write-kr-experiment-factors entitlement.
539 * In addition, for numeric types, special macros are provided that enforce a valid range for the value (inclusive)
540 * to ensure that an errant experiment can't set a totally unexpected value. These macros also track which
541 * values have been modified via sycstl(3) so that they can be inspected with the showexperiments lldb macro.
542 */
543
544struct experiment_spec {
545 void *ptr; /* ptr to numeric experiment factor. */
546 uint64_t min_value; /* Min value that can be set via sysctl(3) (inclusive). */
547 uint64_t max_value; /* Max value that can be set via sysctl(3) (inclusive). */
548 uint64_t original_value; /* First value that was overwritten via sysctl(3). */
549 _Atomic bool modified; /* Has this value ever been overwritten via sysctl(3)? */
550};
551
552/*
553 * The handlers for the numeric types can be easily parameterized by type.
554 * So they're defined via an X macro.
555 */
556#define experiment_factor_numeric_types \
557 X(uint, unsigned int) \
558 X(int, int) \
559 X(ulong, unsigned long) \
560 X(long, long) \
561 X(uint64, uint64_t) \
562 X(int64, int64_t)
563
564#define X(experiment_factor_typename, _) \
565int experiment_factor_##experiment_factor_typename##_handler SYSCTL_HANDLER_ARGS;
566
567experiment_factor_numeric_types
568#undef X
569
570#define __EXPERIMENT_FACTOR_SPEC(parent, name, p, min, max) \
571 struct experiment_spec experiment_##parent##_##name = { \
572 .ptr = p, \
573 .min_value = min, \
574 .max_value = max, \
575 .original_value = 0, \
576 .modified = false \
577 }
578
579#define EXPERIMENT_FACTOR_UINT(parent, name, ptr, min, max, descr) \
580 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
581 _Static_assert(sizeof(*(ptr)) == sizeof(unsigned int), "must be integer sized"); \
582 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_uint_handler, "IU", descr);
583
584#define EXPERIMENT_FACTOR_INT(parent, name, ptr, min, max, descr) \
585 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
586 _Static_assert(sizeof(*(ptr)) == sizeof(int), "must be integer sized"); \
587 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_int_handler, "I", descr);
588
589#define EXPERIMENT_FACTOR_ULONG(parent, name, ptr, min, max, descr) \
590 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
591 _Static_assert(sizeof(*(ptr)) == sizeof(unsigned long), "must be long sized"); \
592 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_ulong_handler, "LU", descr);
593
594#define EXPERIMENT_FACTOR_LONG(parent, name, ptr, min, max, descr) \
595 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
596 _Static_assert(sizeof(*(ptr)) == sizeof(long), "must be long sized"); \
597 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_long_handler, "L", descr);
598
599#define EXPERIMENT_FACTOR_UINT64(parent, name, ptr, min, max, descr) \
600 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
601 _Static_assert(sizeof(*(ptr)) == sizeof(uint64_t), "must be 8 bytes"); \
602 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_uint64_handler, "QU", descr);
603
604#define EXPERIMENT_FACTOR_INT64(parent, name, ptr, min, max, descr) \
605 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \
606 _Static_assert(sizeof(*(ptr)) == sizeof(int64_t), "must be 8 bytes"); \
607 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_int64_handler, "Q", descr);
608
609/*
610 * Calls an user provided handler to read / write this factor.
611 * Entitlement checking will still be done by sysctl, but it's the callers responsibility to validate any new values.
612 * This factor will not be printed out via the showexperiments lldb macro.
613 */
614#define EXPERIMENT_FACTOR_PROC(parent, name, access, ptr, arg, handler, fmt, descr) \
615 _Static_assert(arg != 1, "arg can not be 1"); \
616 SYSCTL_PROC(parent, OID_AUTO, name, access | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, ptr, arg, handler, fmt, descr);
617
618#ifdef XNU_KERNEL_PRIVATE
619/*
620 * Sysctl handler for reading a simple counter.
621 * Using this directly is not recommended. Use the SYSCTL_SCALABLE_COUNTER macro
622 */
623int scalable_counter_sysctl_handler SYSCTL_HANDLER_ARGS;
624
625/*!
626 * @macro SYSCTL_SCALABLE_COUNTER
627 *
628 * @abstract
629 * Provides a sysctl for reading the value of a percpu counter.
630 */
631#define SYSCTL_SCALABLE_COUNTER(parent, name, counter, descr) \
632SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, \
633 (void *)(&counter), 0, &scalable_counter_sysctl_handler, "Q", descr);
634#endif /* XNU_KERNEL_PRIVATE */
635
636extern struct sysctl_oid_list sysctl__children;
637SYSCTL_DECL(_kern);
638SYSCTL_DECL(_sysctl);
639SYSCTL_DECL(_vm);
640SYSCTL_DECL(_vfs);
641SYSCTL_DECL(_net);
642SYSCTL_DECL(_debug);
643SYSCTL_DECL(_hw);
644SYSCTL_DECL(_machdep);
645SYSCTL_DECL(_user);
646#if DEVELOPMENT || DEBUG
647SYSCTL_DECL(_debug_test);
648#endif /* DEVELOPMENT || DEBUG */
649
650#ifdef PRIVATE
651SYSCTL_DECL(_kern_bridge);
652SYSCTL_DECL(_hw_features);
653#endif
654
655#if defined(BSD_KERNEL_PRIVATE) && SKYWALK
656#include <skywalk/os_sysctls_private.h>
657#endif /* defined(BSD_KERNEL_PRIVATE) && SKYWALK */
658
659#ifndef SYSCTL_SKMEM_UPDATE_FIELD
660
661#define SYSCTL_SKMEM 0
662#define SYSCTL_SKMEM_UPDATE_FIELD(field, value)
663#define SYSCTL_SKMEM_UPDATE_AT_OFFSET(offset, value)
664#define SYSCTL_SKMEM_INT(parent, oid, sysctl_name, access, ptr, offset, descr) \
665 SYSCTL_INT(parent, oid, sysctl_name, access, ptr, 0, descr)
666
667#define SYSCTL_SKMEM_TCP_INT(oid, sysctl_name, access, variable_type, \
668 variable_name, initial_value, descr) \
669 variable_type variable_name = initial_value; \
670 SYSCTL_SKMEM_INT(_net_inet_tcp, oid, sysctl_name, access, \
671 &variable_name, 0, descr)
672
673#else /* SYSCTL_SKMEM_UPDATE_FIELD */
674#define SYSCTL_SKMEM 1
675#endif /* SYSCTL_SKMEM_UPDATE_FIELD */
676
677
678
679#endif /* KERNEL */
680
681#ifdef XNU_KERNEL_PRIVATE
682#define SYSCTL_DEF_ENABLED
683#else
684#ifndef KERNEL
685#define SYSCTL_DEF_ENABLED
686#endif
687#endif
688
689#ifdef SYSCTL_DEF_ENABLED
690/*
691 * Top-level identifiers
692 */
693#define CTL_UNSPEC 0 /* unused */
694#define CTL_KERN 1 /* "high kernel": proc, limits */
695#define CTL_VM 2 /* virtual memory */
696#define CTL_VFS 3 /* file system, mount type is next */
697#define CTL_NET 4 /* network, see socket.h */
698#define CTL_DEBUG 5 /* debugging parameters */
699#define CTL_HW 6 /* generic cpu/io */
700#define CTL_MACHDEP 7 /* machine dependent */
701#define CTL_USER 8 /* user-level */
702#define CTL_MAXID 9 /* number of valid top-level ids */
703
704#define CTL_NAMES { \
705 { 0, 0 }, \
706 { "kern", CTLTYPE_NODE }, \
707 { "vm", CTLTYPE_NODE }, \
708 { "vfs", CTLTYPE_NODE }, \
709 { "net", CTLTYPE_NODE }, \
710 { "debug", CTLTYPE_NODE }, \
711 { "hw", CTLTYPE_NODE }, \
712 { "machdep", CTLTYPE_NODE }, \
713 { "user", CTLTYPE_NODE }, \
714}
715
716/*
717 * CTL_KERN identifiers
718 */
719#define KERN_OSTYPE 1 /* string: system version */
720#define KERN_OSRELEASE 2 /* string: system release */
721#define KERN_OSREV 3 /* int: system revision */
722#define KERN_VERSION 4 /* string: compile time info */
723#define KERN_MAXVNODES 5 /* int: max vnodes */
724#define KERN_MAXPROC 6 /* int: max processes */
725#define KERN_MAXFILES 7 /* int: max open files */
726#define KERN_ARGMAX 8 /* int: max arguments to exec */
727#define KERN_SECURELVL 9 /* int: system security level */
728#define KERN_HOSTNAME 10 /* string: hostname */
729#define KERN_HOSTID 11 /* int: host identifier */
730#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
731#define KERN_VNODE 13 /* struct: vnode structures */
732#define KERN_PROC 14 /* struct: process entries */
733#define KERN_FILE 15 /* struct: file entries */
734#define KERN_PROF 16 /* node: kernel profiling info */
735#define KERN_POSIX1 17 /* int: POSIX.1 version */
736#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
737#define KERN_JOB_CONTROL 19 /* int: is job control available */
738#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
739#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
740#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
741#define KERN_DOMAINNAME KERN_NISDOMAINNAME
742#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */
743#define KERN_KDEBUG 24 /* int: kernel trace points */
744#define KERN_UPDATEINTERVAL 25 /* int: update process sleep time */
745#define KERN_OSRELDATE 26 /* int: OS release date */
746#define KERN_NTP_PLL 27 /* node: NTP PLL control */
747#define KERN_BOOTFILE 28 /* string: name of booted kernel */
748#define KERN_MAXFILESPERPROC 29 /* int: max open files per proc */
749#define KERN_MAXPROCPERUID 30 /* int: max processes per uid */
750#define KERN_DUMPDEV 31 /* dev_t: device to dump on */
751#define KERN_IPC 32 /* node: anything related to IPC */
752#define KERN_DUMMY 33 /* unused */
753#define KERN_PS_STRINGS 34 /* int: address of PS_STRINGS */
754#define KERN_USRSTACK32 35 /* int: address of USRSTACK */
755#define KERN_LOGSIGEXIT 36 /* int: do we log sigexit procs? */
756#define KERN_SYMFILE 37 /* string: kernel symbol filename */
757#define KERN_PROCARGS 38
758/* 39 was KERN_PCSAMPLES... now obsolete */
759#define KERN_NETBOOT 40 /* int: are we netbooted? 1=yes,0=no */
760/* 41 was KERN_PANICINFO : panic UI information (deprecated) */
761#define KERN_SYSV 42 /* node: System V IPC information */
762#define KERN_AFFINITY 43 /* xxx */
763#define KERN_TRANSLATE 44 /* xxx */
764#define KERN_CLASSIC KERN_TRANSLATE /* XXX backwards compat */
765#define KERN_EXEC 45 /* xxx */
766#define KERN_CLASSICHANDLER KERN_EXEC /* XXX backwards compatibility */
767#define KERN_AIOMAX 46 /* int: max aio requests */
768#define KERN_AIOPROCMAX 47 /* int: max aio requests per process */
769#define KERN_AIOTHREADS 48 /* int: max aio worker threads */
770#ifdef __APPLE_API_UNSTABLE
771#define KERN_PROCARGS2 49
772#endif /* __APPLE_API_UNSTABLE */
773#define KERN_COREFILE 50 /* string: corefile format string */
774#define KERN_COREDUMP 51 /* int: whether to coredump at all */
775#define KERN_SUGID_COREDUMP 52 /* int: whether to dump SUGID cores */
776#define KERN_PROCDELAYTERM 53 /* int: set/reset current proc for delayed termination during shutdown */
777#define KERN_SHREG_PRIVATIZABLE 54 /* int: can shared regions be privatized ? */
778/* 55 was KERN_PROC_LOW_PRI_IO... now deprecated */
779#define KERN_LOW_PRI_WINDOW 56 /* int: set/reset throttle window - milliseconds */
780#define KERN_LOW_PRI_DELAY 57 /* int: set/reset throttle delay - milliseconds */
781#define KERN_POSIX 58 /* node: posix tunables */
782#define KERN_USRSTACK64 59 /* LP64 user stack query */
783#define KERN_NX_PROTECTION 60 /* int: whether no-execute protection is enabled */
784#define KERN_TFP 61 /* Task for pid settings */
785#define KERN_PROCNAME 62 /* setup process program name(2*MAXCOMLEN) */
786#define KERN_THALTSTACK 63 /* for compat with older x86 and does nothing */
787#define KERN_SPECULATIVE_READS 64 /* int: whether speculative reads are disabled */
788#define KERN_OSVERSION 65 /* for build number i.e. 9A127 */
789#define KERN_SAFEBOOT 66 /* are we booted safe? */
790/* 67 was KERN_LCTX (login context) */
791#define KERN_RAGEVNODE 68
792#define KERN_TTY 69 /* node: tty settings */
793#define KERN_CHECKOPENEVT 70 /* spi: check the VOPENEVT flag on vnodes at open time */
794#define KERN_THREADNAME 71 /* set/get thread name */
795#define KERN_MAXID 72 /* number of valid kern ids */
796/*
797 * Don't add any more sysctls like this. Instead, use the SYSCTL_*() macros
798 * and OID_AUTO. This will have the added benefit of not having to recompile
799 * sysctl(8) to pick up your changes.
800 */
801
802#if COUNT_SYSCALLS && defined(KERNEL)
803#define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000) /* keep called count for each bsd syscall */
804#endif
805
806#if defined(__LP64__)
807#define KERN_USRSTACK KERN_USRSTACK64
808#else
809#define KERN_USRSTACK KERN_USRSTACK32
810#endif
811
812
813/* KERN_RAGEVNODE types */
814#define KERN_RAGE_PROC 1
815#define KERN_RAGE_THREAD 2
816#define KERN_UNRAGE_PROC 3
817#define KERN_UNRAGE_THREAD 4
818
819/* KERN_OPENEVT types */
820#define KERN_OPENEVT_PROC 1
821#define KERN_UNOPENEVT_PROC 2
822
823/* KERN_TFP types */
824#define KERN_TFP_POLICY 1
825
826/* KERN_TFP_POLICY values . All policies allow task port for self */
827#define KERN_TFP_POLICY_DENY 0 /* Deny Mode: None allowed except privileged */
828#define KERN_TFP_POLICY_DEFAULT 2 /* Default Mode: related ones allowed and upcall authentication */
829
830/* KERN_KDEBUG types */
831#define KERN_KDEFLAGS 1
832#define KERN_KDDFLAGS 2
833#define KERN_KDENABLE 3
834#define KERN_KDSETBUF 4
835#define KERN_KDGETBUF 5
836#define KERN_KDSETUP 6
837#define KERN_KDREMOVE 7
838#define KERN_KDSETREG 8
839#define KERN_KDGETREG 9
840#define KERN_KDREADTR 10
841#define KERN_KDPIDTR 11
842#define KERN_KDTHRMAP 12
843/* Don't use 13 as it is overloaded with KERN_VNODE */
844#define KERN_KDPIDEX 14
845#define KERN_KDSETRTCDEC 15 /* obsolete */
846#define KERN_KDGETENTROPY 16 /* obsolete */
847#define KERN_KDWRITETR 17
848#define KERN_KDWRITEMAP 18
849#define KERN_KDTEST 19
850/* 20 unused */
851#define KERN_KDREADCURTHRMAP 21
852#define KERN_KDSET_TYPEFILTER 22
853#define KERN_KDBUFWAIT 23
854#define KERN_KDCPUMAP 24
855#define KERN_KDCPUMAP_EXT 25
856#define KERN_KDSET_EDM 26
857#define KERN_KDGET_EDM 27
858#define KERN_KDWRITETR_V3 28
859
860#define CTL_KERN_NAMES { \
861 { 0, 0 }, \
862 { "ostype", CTLTYPE_STRING }, \
863 { "osrelease", CTLTYPE_STRING }, \
864 { "osrevision", CTLTYPE_INT }, \
865 { "version", CTLTYPE_STRING }, \
866 { "maxvnodes", CTLTYPE_INT }, \
867 { "maxproc", CTLTYPE_INT }, \
868 { "maxfiles", CTLTYPE_INT }, \
869 { "argmax", CTLTYPE_INT }, \
870 { "securelevel", CTLTYPE_INT }, \
871 { "hostname", CTLTYPE_STRING }, \
872 { "hostid", CTLTYPE_INT }, \
873 { "clockrate", CTLTYPE_STRUCT }, \
874 { "vnode", CTLTYPE_STRUCT }, \
875 { "proc", CTLTYPE_STRUCT }, \
876 { "file", CTLTYPE_STRUCT }, \
877 { "profiling", CTLTYPE_NODE }, \
878 { "posix1version", CTLTYPE_INT }, \
879 { "ngroups", CTLTYPE_INT }, \
880 { "job_control", CTLTYPE_INT }, \
881 { "saved_ids", CTLTYPE_INT }, \
882 { "boottime", CTLTYPE_STRUCT }, \
883 { "nisdomainname", CTLTYPE_STRING }, \
884 { "maxpartitions", CTLTYPE_INT }, \
885 { "kdebug", CTLTYPE_INT }, \
886 { "update", CTLTYPE_INT }, \
887 { "osreldate", CTLTYPE_INT }, \
888 { "ntp_pll", CTLTYPE_NODE }, \
889 { "bootfile", CTLTYPE_STRING }, \
890 { "maxfilesperproc", CTLTYPE_INT }, \
891 { "maxprocperuid", CTLTYPE_INT }, \
892 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
893 { "ipc", CTLTYPE_NODE }, \
894 { "dummy", CTLTYPE_INT }, \
895 { "dummy", CTLTYPE_INT }, \
896 { "usrstack", CTLTYPE_INT }, \
897 { "logsigexit", CTLTYPE_INT }, \
898 { "symfile",CTLTYPE_STRING },\
899 { "procargs",CTLTYPE_STRUCT },\
900 { "dummy", CTLTYPE_INT }, /* deprecated pcsamples */ \
901 { "netboot", CTLTYPE_INT }, \
902 { "dummy", CTLTYPE_INT }, /* deprecated: panicinfo */ \
903 { "sysv", CTLTYPE_NODE }, \
904 { "dummy", CTLTYPE_INT }, \
905 { "dummy", CTLTYPE_INT }, \
906 { "exec", CTLTYPE_NODE }, \
907 { "aiomax", CTLTYPE_INT }, \
908 { "aioprocmax", CTLTYPE_INT }, \
909 { "aiothreads", CTLTYPE_INT }, \
910 { "procargs2",CTLTYPE_STRUCT }, \
911 { "corefile",CTLTYPE_STRING }, \
912 { "coredump", CTLTYPE_INT }, \
913 { "sugid_coredump", CTLTYPE_INT }, \
914 { "delayterm", CTLTYPE_INT }, \
915 { "shreg_private", CTLTYPE_INT }, \
916 { "proc_low_pri_io", CTLTYPE_INT }, \
917 { "low_pri_window", CTLTYPE_INT }, \
918 { "low_pri_delay", CTLTYPE_INT }, \
919 { "posix", CTLTYPE_NODE }, \
920 { "usrstack64", CTLTYPE_QUAD }, \
921 { "nx", CTLTYPE_INT }, \
922 { "tfp", CTLTYPE_NODE }, \
923 { "procname", CTLTYPE_STRING }, \
924 { "threadsigaltstack", CTLTYPE_INT }, \
925 { "speculative_reads_disabled", CTLTYPE_INT }, \
926 { "osversion", CTLTYPE_STRING }, \
927 { "safeboot", CTLTYPE_INT }, \
928 { "dummy", CTLTYPE_INT }, /* deprecated: lctx */ \
929 { "rage_vnode", CTLTYPE_INT }, \
930 { "tty", CTLTYPE_NODE }, \
931 { "check_openevt", CTLTYPE_INT }, \
932 { "thread_name", CTLTYPE_STRING } \
933}
934
935/*
936 * CTL_VFS identifiers
937 */
938#define CTL_VFS_NAMES { \
939 { "vfsconf", CTLTYPE_STRUCT } \
940}
941
942/*
943 * KERN_PROC subtypes
944 */
945#define KERN_PROC_ALL 0 /* everything */
946#define KERN_PROC_PID 1 /* by process id */
947#define KERN_PROC_PGRP 2 /* by process group id */
948#define KERN_PROC_SESSION 3 /* by session of pid */
949#define KERN_PROC_TTY 4 /* by controlling tty */
950#define KERN_PROC_UID 5 /* by effective uid */
951#define KERN_PROC_RUID 6 /* by real uid */
952#define KERN_PROC_LCID 7 /* by login context id */
953
954/*
955 * KERN_VFSNSPACE subtypes
956 */
957#define KERN_VFSNSPACE_HANDLE_PROC 1
958#define KERN_VFSNSPACE_UNHANDLE_PROC 2
959
960#if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL)
961/*
962 * KERN_PROC subtype ops return arrays of augmented proc structures:
963 */
964
965struct _pcred {
966 char pc_lock[72]; /* opaque content */
967 struct ucred *pc_ucred; /* Current credentials. */
968 uid_t p_ruid; /* Real user id. */
969 uid_t p_svuid; /* Saved effective user id. */
970 gid_t p_rgid; /* Real group id. */
971 gid_t p_svgid; /* Saved effective group id. */
972 int p_refcnt; /* Number of references. */
973};
974
975struct _ucred {
976 int32_t cr_ref; /* reference count */
977 uid_t cr_uid; /* effective user id */
978 short cr_ngroups; /* number of groups */
979 gid_t cr_groups[NGROUPS]; /* groups */
980};
981
982struct kinfo_proc {
983 struct extern_proc kp_proc; /* proc structure */
984 struct eproc {
985 struct proc *e_paddr; /* address of proc */
986 struct session *e_sess; /* session pointer */
987 struct _pcred e_pcred; /* process credentials */
988 struct _ucred e_ucred; /* current credentials */
989 struct vmspace e_vm; /* address space */
990 pid_t e_ppid; /* parent process id */
991 pid_t e_pgid; /* process group id */
992 short e_jobc; /* job control counter */
993 dev_t e_tdev; /* controlling tty dev */
994 pid_t e_tpgid; /* tty process group id */
995 struct session *e_tsess; /* tty session pointer */
996#define WMESGLEN 7
997 char e_wmesg[WMESGLEN + 1]; /* wchan message */
998 segsz_t e_xsize; /* text size */
999 short e_xrssize; /* text rss */
1000 short e_xccount; /* text references */
1001 short e_xswrss;
1002 int32_t e_flag;
1003#define EPROC_CTTY 0x01 /* controlling tty vnode active */
1004#define EPROC_SLEADER 0x02 /* session leader */
1005#define COMAPT_MAXLOGNAME 12
1006 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */
1007 int32_t e_spare[4];
1008 } kp_eproc;
1009};
1010
1011#endif /* defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) */
1012
1013#ifdef BSD_KERNEL_PRIVATE
1014#include <sys/proc_internal.h>
1015
1016/* LP64 version of _pcred. all pointers
1017 * grow when we're dealing with a 64-bit process.
1018 * WARNING - keep in sync with _pcred
1019 */
1020
1021struct user32_pcred {
1022 char pc_lock[72]; /* opaque content */
1023 user32_addr_t pc_ucred; /* Current credentials. */
1024 uid_t p_ruid; /* Real user id. */
1025 uid_t p_svuid; /* Saved effective user id. */
1026 gid_t p_rgid; /* Real group id. */
1027 gid_t p_svgid; /* Saved effective group id. */
1028 int p_refcnt; /* Number of references. */
1029};
1030struct user64_pcred {
1031 char pc_lock[72]; /* opaque content */
1032 user64_addr_t pc_ucred; /* Current credentials. */
1033 uid_t p_ruid; /* Real user id. */
1034 uid_t p_svuid; /* Saved effective user id. */
1035 gid_t p_rgid; /* Real group id. */
1036 gid_t p_svgid; /* Saved effective group id. */
1037 int p_refcnt; /* Number of references. */
1038};
1039
1040/* LP64 version of kinfo_proc. all pointers
1041 * grow when we're dealing with a 64-bit process.
1042 * WARNING - keep in sync with kinfo_proc
1043 */
1044struct user32_kinfo_proc {
1045 struct user32_extern_proc kp_proc; /* proc structure */
1046 struct user32_eproc {
1047 user32_addr_t e_paddr; /* address of proc */
1048 user32_addr_t e_sess; /* session pointer */
1049 struct user32_pcred e_pcred; /* process credentials */
1050 struct _ucred e_ucred; /* current credentials */
1051 struct user32_vmspace e_vm; /* address space */
1052 pid_t e_ppid; /* parent process id */
1053 pid_t e_pgid; /* process group id */
1054 int e_jobc; /* job control counter */
1055 dev_t e_tdev; /* controlling tty dev */
1056 pid_t e_tpgid; /* tty process group id */
1057 user32_addr_t e_tsess; /* tty session pointer */
1058 char e_wmesg[WMESGLEN + 1]; /* wchan message */
1059 segsz_t e_xsize; /* text size */
1060 short e_xrssize; /* text rss */
1061 short e_xccount; /* text references */
1062 short e_xswrss;
1063 int32_t e_flag;
1064 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */
1065 int32_t e_spare[4];
1066 } kp_eproc;
1067};
1068struct user64_kinfo_proc {
1069 struct user64_extern_proc kp_proc; /* proc structure */
1070 struct user64_eproc {
1071 user_addr_t e_paddr; /* address of proc */
1072 user_addr_t e_sess; /* session pointer */
1073 struct user64_pcred e_pcred; /* process credentials */
1074 struct _ucred e_ucred; /* current credentials */
1075 struct user_vmspace e_vm; /* address space */
1076 pid_t e_ppid; /* parent process id */
1077 pid_t e_pgid; /* process group id */
1078 int e_jobc; /* job control counter */
1079 dev_t e_tdev; /* controlling tty dev */
1080 pid_t e_tpgid; /* tty process group id */
1081 user64_addr_t e_tsess __attribute((aligned(8))); /* tty session pointer */
1082 char e_wmesg[WMESGLEN + 1]; /* wchan message */
1083 segsz_t e_xsize; /* text size */
1084 short e_xrssize; /* text rss */
1085 short e_xccount; /* text references */
1086 short e_xswrss;
1087 int32_t e_flag;
1088 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */
1089 int32_t e_spare[4];
1090 } kp_eproc;
1091};
1092
1093#endif /* BSD_KERNEL_PRIVATE */
1094
1095/*
1096 * KERN_IPC identifiers
1097 */
1098#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
1099#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
1100#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
1101#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
1102#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
1103#define KIPC_MAX_HDR 6 /* int: max total length of headers */
1104#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
1105#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
1106#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
1107#define KIPC_SOQLIMITCOMPAT 10 /* int: socket queue limit */
1108
1109/*
1110 * CTL_VM identifiers
1111 */
1112#define VM_METER 1 /* struct vmmeter */
1113#define VM_LOADAVG 2 /* struct loadavg */
1114/*
1115 * Note: "3" was skipped sometime ago and should probably remain unused
1116 * to avoid any new entry from being accepted by older kernels...
1117 */
1118#define VM_MACHFACTOR 4 /* struct loadavg with mach factor*/
1119#define VM_SWAPUSAGE 5 /* total swap usage */
1120#define VM_MAXID 6 /* number of valid vm ids */
1121
1122#define CTL_VM_NAMES { \
1123 { 0, 0 }, \
1124 { "vmmeter", CTLTYPE_STRUCT }, \
1125 { "loadavg", CTLTYPE_STRUCT }, \
1126 { 0, 0 }, /* placeholder for "3" (see comment above) */ \
1127 { "dummy", CTLTYPE_INT }, \
1128 { "swapusage", CTLTYPE_STRUCT } \
1129}
1130
1131struct xsw_usage {
1132 u_int64_t xsu_total;
1133 u_int64_t xsu_avail;
1134 u_int64_t xsu_used;
1135 u_int32_t xsu_pagesize;
1136 boolean_t xsu_encrypted;
1137};
1138
1139#ifdef __APPLE_API_PRIVATE
1140/* Load average structure. Use of fixpt_t assume <sys/types.h> in scope. */
1141/* XXX perhaps we should protect fixpt_t, and define it here (or discard it) */
1142struct loadavg {
1143 fixpt_t ldavg[3];
1144 long fscale;
1145};
1146extern struct loadavg averunnable;
1147#define LSCALE 1000 /* scaling for "fixed point" arithmetic */
1148
1149#ifdef BSD_KERNEL_PRIVATE
1150
1151struct user32_loadavg {
1152 fixpt_t ldavg[3];
1153 user32_long_t fscale;
1154};
1155
1156struct user64_loadavg {
1157 fixpt_t ldavg[3];
1158 user64_long_t fscale;
1159};
1160
1161#endif /* BSD_KERNEL_PRIVATE */
1162#endif /* __APPLE_API_PRIVATE */
1163
1164
1165/*
1166 * CTL_HW identifiers
1167 */
1168#define HW_MACHINE 1 /* string: machine class (deprecated: use HW_PRODUCT) */
1169#define HW_MODEL 2 /* string: specific machine model (deprecated: use HW_TARGET) */
1170#define HW_NCPU 3 /* int: number of cpus */
1171#define HW_BYTEORDER 4 /* int: machine byte order */
1172#define HW_PHYSMEM 5 /* int: total memory */
1173#define HW_USERMEM 6 /* int: non-kernel memory */
1174#define HW_PAGESIZE 7 /* int: software page size */
1175#define HW_DISKNAMES 8 /* strings: disk drive names */
1176#define HW_DISKSTATS 9 /* struct: diskstats[] */
1177#define HW_EPOCH 10 /* int: 0 for Legacy, else NewWorld */
1178#define HW_FLOATINGPT 11 /* int: has HW floating point? */
1179#define HW_MACHINE_ARCH 12 /* string: machine architecture */
1180#define HW_VECTORUNIT 13 /* int: has HW vector unit? */
1181#define HW_BUS_FREQ 14 /* int: Bus Frequency */
1182#define HW_CPU_FREQ 15 /* int: CPU Frequency */
1183#define HW_CACHELINE 16 /* int: Cache Line Size in Bytes */
1184#define HW_L1ICACHESIZE 17 /* int: L1 I Cache Size in Bytes */
1185#define HW_L1DCACHESIZE 18 /* int: L1 D Cache Size in Bytes */
1186#define HW_L2SETTINGS 19 /* int: L2 Cache Settings */
1187#define HW_L2CACHESIZE 20 /* int: L2 Cache Size in Bytes */
1188#define HW_L3SETTINGS 21 /* int: L3 Cache Settings */
1189#define HW_L3CACHESIZE 22 /* int: L3 Cache Size in Bytes */
1190#define HW_TB_FREQ 23 /* int: Bus Frequency */
1191#define HW_MEMSIZE 24 /* uint64_t: physical ram size */
1192#define HW_AVAILCPU 25 /* int: number of available CPUs */
1193#define HW_TARGET 26 /* string: model identifier */
1194#define HW_PRODUCT 27 /* string: product identifier */
1195#define HW_MAXID 28 /* number of valid hw ids */
1196
1197#define CTL_HW_NAMES { \
1198 { 0, 0 }, \
1199 { "machine", CTLTYPE_STRING }, /* Deprecated: use hw.product */ \
1200 { "model", CTLTYPE_STRING }, /* Deprecated: use hw.target */ \
1201 { "ncpu", CTLTYPE_INT }, \
1202 { "byteorder", CTLTYPE_INT }, \
1203 { "physmem", CTLTYPE_INT }, \
1204 { "usermem", CTLTYPE_INT }, \
1205 { "pagesize", CTLTYPE_INT }, \
1206 { "disknames", CTLTYPE_STRUCT }, \
1207 { "diskstats", CTLTYPE_STRUCT }, \
1208 { "epoch", CTLTYPE_INT }, \
1209 { "floatingpoint", CTLTYPE_INT }, \
1210 { "machinearch", CTLTYPE_STRING }, \
1211 { "vectorunit", CTLTYPE_INT }, \
1212 { "busfrequency", CTLTYPE_INT }, \
1213 { "cpufrequency", CTLTYPE_INT }, \
1214 { "cachelinesize", CTLTYPE_INT }, \
1215 { "l1icachesize", CTLTYPE_INT }, \
1216 { "l1dcachesize", CTLTYPE_INT }, \
1217 { "l2settings", CTLTYPE_INT }, \
1218 { "l2cachesize", CTLTYPE_INT }, \
1219 { "l3settings", CTLTYPE_INT }, \
1220 { "l3cachesize", CTLTYPE_INT }, \
1221 { "tbfrequency", CTLTYPE_INT }, \
1222 { "memsize", CTLTYPE_QUAD }, \
1223 { "availcpu", CTLTYPE_INT }, \
1224 { "target", CTLTYPE_STRING }, \
1225 { "product", CTLTYPE_STRING }, \
1226}
1227
1228/*
1229 * XXX This information should be moved to the man page.
1230 *
1231 * These are the support HW selectors for sysctlbyname. Parameters that are byte counts or frequencies are 64 bit numbers.
1232 * All other parameters are 32 bit numbers.
1233 *
1234 * hw.memsize - The number of bytes of physical memory in the system.
1235 *
1236 * hw.ncpu - The maximum number of processors that could be available this boot.
1237 * Use this value for sizing of static per processor arrays; i.e. processor load statistics.
1238 *
1239 * hw.activecpu - The number of processors currently available for executing threads.
1240 * Use this number to determine the number threads to create in SMP aware applications.
1241 * This number can change when power management modes are changed.
1242 *
1243 * hw.physicalcpu - The number of physical processors available in the current power management mode.
1244 * hw.physicalcpu_max - The maximum number of physical processors that could be available this boot
1245 *
1246 * hw.logicalcpu - The number of logical processors available in the current power management mode.
1247 * hw.logicalcpu_max - The maximum number of logical processors that could be available this boot
1248 *
1249 * hw.tbfrequency - This gives the time base frequency used by the OS and is the basis of all timing services.
1250 * In general is is better to use mach's or higher level timing services, but this value
1251 * is needed to convert the PPC Time Base registers to real time.
1252 *
1253 * hw.cpufrequency - These values provide the current, min and max cpu frequency. The min and max are for
1254 * hw.cpufrequency_max - all power management modes. The current frequency is the max frequency in the current mode.
1255 * hw.cpufrequency_min - All frequencies are in Hz.
1256 *
1257 * hw.busfrequency - These values provide the current, min and max bus frequency. The min and max are for
1258 * hw.busfrequency_max - all power management modes. The current frequency is the max frequency in the current mode.
1259 * hw.busfrequency_min - All frequencies are in Hz.
1260 *
1261 * hw.cputype - These values provide the mach-o cpu type and subtype. A complete list is in <mach/machine.h>
1262 * hw.cpusubtype - These values should be used to determine what processor family the running cpu is from so that
1263 * the best binary can be chosen, or the best dynamic code generated. They should not be used
1264 * to determine if a given processor feature is available.
1265 * hw.cputhreadtype - This value will be present if the processor supports threads. Like hw.cpusubtype this selector
1266 * should not be used to infer features, and only used to name the processors thread architecture.
1267 * The values are defined in <mach/machine.h>
1268 *
1269 * hw.byteorder - Gives the byte order of the processor. 4321 for big endian, 1234 for little.
1270 *
1271 * hw.pagesize - Gives the size in bytes of the pages used by the processor and VM system.
1272 *
1273 * hw.cachelinesize - Gives the size in bytes of the processor's cache lines.
1274 * This value should be use to control the strides of loops that use cache control instructions
1275 * like dcbz, dcbt or dcbst.
1276 *
1277 * hw.l1dcachesize - These values provide the size in bytes of the L1, L2 and L3 caches. If a cache is not present
1278 * hw.l1icachesize - then the selector will return and error.
1279 * hw.l2cachesize -
1280 * hw.l3cachesize -
1281 *
1282 * hw.nperflevels - Number of core types in the system. See the parameters below, which can be used to get
1283 * - information associated with a specific perf level.
1284 *
1285 * The following parameters apply to perflevel N, where N is a number between 0 and the number of core types in the system minus one.
1286 * perflevel 0 always refers to the highest performance core type in the system.
1287 *
1288 * hw.perflevelN.physicalcpu - The number of physical processors available in the current power management mode.
1289 * hw.perflevelN.physicalcpumax - The maximum number of physical processors that could be available this boot.
1290 * hw.perflevelN.logicalcpu - The number of logical processors available in the current power management mode.
1291 * hw.perflevelN.logicalcpumax - The maximum number of logical processors that could be available this boot.
1292 *
1293 * hw.perflevelN.l1dcachesize - These values provide the size in bytes of the L1, L2 and L3 caches. If a cache is not present
1294 * hw.perflevelN.l1icachesize - then the selector will return and error.
1295 * hw.perflevelN.l2cachesize -
1296 * hw.perflevelN.l3cachesize -
1297 *
1298 * hw.perflevelN.cpusperl2 - These values provide the number of CPUs of the same type that share L2 and L3 caches.
1299 * hw.perflevelN.cpusperl3 - If a cache is not present then the selector will return and error.
1300 *
1301 * hw.perflevelN.l2perflevels - These values provide a bitmap, where bit number of CPUs of the same type that share L2 and L3 caches.
1302 * hw.perflevelN.l3perflevels - If a cache is not present then the selector will return and error.
1303 *
1304 * hw.packages - Gives the number of processor packages.
1305 *
1306 * These are the selectors for optional processor features for specific processors. Selectors that return errors are not support
1307 * on the system. Supported features will return 1 if they are recommended or 0 if they are supported but are not expected to help .
1308 * performance. Future versions of these selectors may return larger values as necessary so it is best to test for non zero.
1309 *
1310 * For PowerPC:
1311 *
1312 * hw.optional.floatingpoint - Floating Point Instructions
1313 * hw.optional.altivec - AltiVec Instructions
1314 * hw.optional.graphicsops - Graphics Operations
1315 * hw.optional.64bitops - 64-bit Instructions
1316 * hw.optional.fsqrt - HW Floating Point Square Root Instruction
1317 * hw.optional.stfiwx - Store Floating Point as Integer Word Indexed Instructions
1318 * hw.optional.dcba - Data Cache Block Allocate Instruction
1319 * hw.optional.datastreams - Data Streams Instructions
1320 * hw.optional.dcbtstreams - Data Cache Block Touch Steams Instruction Form
1321 *
1322 * For x86 Architecture:
1323 *
1324 * hw.optional.floatingpoint - Floating Point Instructions
1325 * hw.optional.mmx - Original MMX vector instructions
1326 * hw.optional.sse - Streaming SIMD Extensions
1327 * hw.optional.sse2 - Streaming SIMD Extensions 2
1328 * hw.optional.sse3 - Streaming SIMD Extensions 3
1329 * hw.optional.supplementalsse3 - Supplemental Streaming SIMD Extensions 3
1330 * hw.optional.x86_64 - 64-bit support
1331 */
1332
1333
1334/*
1335 * CTL_USER definitions
1336 */
1337#define USER_CS_PATH 1 /* string: _CS_PATH */
1338#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
1339#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
1340#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
1341#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
1342#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
1343#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
1344#define USER_LINE_MAX 8 /* int: LINE_MAX */
1345#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
1346#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
1347#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
1348#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
1349#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
1350#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
1351#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
1352#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
1353#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
1354#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
1355#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
1356#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
1357#define USER_MAXID 21 /* number of valid user ids */
1358
1359#define CTL_USER_NAMES { \
1360 { 0, 0 }, \
1361 { "cs_path", CTLTYPE_STRING }, \
1362 { "bc_base_max", CTLTYPE_INT }, \
1363 { "bc_dim_max", CTLTYPE_INT }, \
1364 { "bc_scale_max", CTLTYPE_INT }, \
1365 { "bc_string_max", CTLTYPE_INT }, \
1366 { "coll_weights_max", CTLTYPE_INT }, \
1367 { "expr_nest_max", CTLTYPE_INT }, \
1368 { "line_max", CTLTYPE_INT }, \
1369 { "re_dup_max", CTLTYPE_INT }, \
1370 { "posix2_version", CTLTYPE_INT }, \
1371 { "posix2_c_bind", CTLTYPE_INT }, \
1372 { "posix2_c_dev", CTLTYPE_INT }, \
1373 { "posix2_char_term", CTLTYPE_INT }, \
1374 { "posix2_fort_dev", CTLTYPE_INT }, \
1375 { "posix2_fort_run", CTLTYPE_INT }, \
1376 { "posix2_localedef", CTLTYPE_INT }, \
1377 { "posix2_sw_dev", CTLTYPE_INT }, \
1378 { "posix2_upe", CTLTYPE_INT }, \
1379 { "stream_max", CTLTYPE_INT }, \
1380 { "tzname_max", CTLTYPE_INT } \
1381}
1382
1383
1384
1385/*
1386 * CTL_DEBUG definitions
1387 *
1388 * Second level identifier specifies which debug variable.
1389 * Third level identifier specifies which stucture component.
1390 */
1391#define CTL_DEBUG_NAME 0 /* string: variable name */
1392#define CTL_DEBUG_VALUE 1 /* int: variable value */
1393#define CTL_DEBUG_MAXID 20
1394
1395
1396#if (CTL_MAXID != 9) || (KERN_MAXID != 72) || (VM_MAXID != 6) || (HW_MAXID != 28) || (USER_MAXID != 21) || (CTL_DEBUG_MAXID != 20)
1397#error Use the SYSCTL_*() macros and OID_AUTO instead!
1398#endif
1399
1400
1401#ifdef KERNEL
1402
1403#ifdef BSD_KERNEL_PRIVATE
1404extern char machine[];
1405extern char osrelease[];
1406extern char ostype[];
1407extern char osversion[];
1408extern char osproductversion[];
1409extern char osbuild_config[];
1410#if defined(XNU_TARGET_OS_BRIDGE)
1411/*
1412 * 15 characters at maximum so both the productversion
1413 * and the build version can fit in the panic header
1414 * osversion field with the formatting requirements.
1415 */
1416#define MACOS_VERS_LEN 15
1417
1418extern char macosproductversion[];
1419extern char macosversion[];
1420#endif
1421
1422void sysctl_mib_init(void);
1423
1424#endif /* BSD_KERNEL_PRIVATE */
1425#else /* !KERNEL */
1426
1427__BEGIN_DECLS
1428int sysctl(int *, u_int, void *, size_t *, void *, size_t);
1429int sysctlbyname(const char *, void *, size_t *, void *, size_t);
1430int sysctlnametomib(const char *, int *, size_t *);
1431__END_DECLS
1432
1433#endif /* KERNEL */
1434
1435
1436#endif /* SYSCTL_DEF_ENABLED */
1437
1438
1439#endif /* !_SYS_SYSCTL_H_ */
1440