xref: /freebsd/sys/sys/sysctl.h (revision 380a989b3223d455375b4fae70fd0b9bdd43bafb)
1 /*
2  * Copyright (c) 1989, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Mike Karels at Berkeley Software Design, Inc.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  *	@(#)sysctl.h	8.1 (Berkeley) 6/2/93
37  * $Id: sysctl.h,v 1.67 1998/12/16 16:06:29 bde Exp $
38  */
39 
40 #ifndef _SYS_SYSCTL_H_
41 #define	_SYS_SYSCTL_H_
42 
43 #include <sys/_posix.h>
44 
45 /*
46  * Definitions for sysctl call.  The sysctl call uses a hierarchical name
47  * for objects that can be examined or modified.  The name is expressed as
48  * a sequence of integers.  Like a file path name, the meaning of each
49  * component depends on its place in the hierarchy.  The top-level and kern
50  * identifiers are defined here, and other identifiers are defined in the
51  * respective subsystem header files.
52  */
53 
54 #define CTL_MAXNAME	12	/* largest number of components supported */
55 
56 /*
57  * Each subsystem defined by sysctl defines a list of variables
58  * for that subsystem. Each name is either a node with further
59  * levels defined below it, or it is a leaf of some particular
60  * type given below. Each sysctl level defines a set of name/type
61  * pairs to be used by sysctl(1) in manipulating the subsystem.
62  */
63 struct ctlname {
64 	char	*ctl_name;	/* subsystem name */
65 	int	ctl_type;	/* type of name */
66 };
67 
68 #define CTLTYPE		0xf	/* Mask for the type */
69 #define	CTLTYPE_NODE	1	/* name is a node */
70 #define	CTLTYPE_INT	2	/* name describes an integer */
71 #define	CTLTYPE_STRING	3	/* name describes a string */
72 #define	CTLTYPE_QUAD	4	/* name describes a 64-bit number */
73 #define	CTLTYPE_OPAQUE	5	/* name describes a structure */
74 #define	CTLTYPE_STRUCT	CTLTYPE_OPAQUE	/* name describes a structure */
75 
76 #define CTLFLAG_RD	0x80000000	/* Allow reads of variable */
77 #define CTLFLAG_WR	0x40000000	/* Allow writes to the variable */
78 #define CTLFLAG_RW	(CTLFLAG_RD|CTLFLAG_WR)
79 #define CTLFLAG_NOLOCK	0x20000000	/* XXX Don't Lock */
80 #define CTLFLAG_ANYBODY	0x10000000	/* All users can set this var */
81 #define CTLFLAG_SECURE	0x08000000	/* Permit set only if securelevel<=0 */
82 
83 /*
84  * USE THIS instead of a hardwired number from the categories below
85  * to get dynamically assigned sysctl entries using the linker-set
86  * technology. This is the way nearly all new sysctl variables should
87  * be implemented.
88  * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
89  */
90 #define OID_AUTO	(-1)
91 
92 #ifdef KERNEL
93 #define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \
94 	struct sysctl_req *req)
95 
96 /*
97  * This describes the access space for a sysctl request.  This is needed
98  * so that we can use the interface from the kernel or from user-space.
99  */
100 struct sysctl_req {
101 	struct proc	*p;
102 	int		lock;
103 	void		*oldptr;
104 	size_t		oldlen;
105 	size_t		oldidx;
106 	int		(*oldfunc)(struct sysctl_req *, const void *, size_t);
107 	void		*newptr;
108 	size_t		newlen;
109 	size_t		newidx;
110 	int		(*newfunc)(struct sysctl_req *, void *, size_t);
111 };
112 
113 /*
114  * This describes one "oid" in the MIB tree.  Potentially more nodes can
115  * be hidden behind it, expanded by the handler.
116  */
117 struct sysctl_oid {
118 	int		oid_number;
119 	int		oid_kind;
120 	void		*oid_arg1;
121 	int		oid_arg2;
122 	const char	*oid_name;
123 	int 		(*oid_handler) SYSCTL_HANDLER_ARGS;
124 	const char	*oid_fmt;
125 };
126 
127 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
128 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
129 
130 int sysctl_handle_int SYSCTL_HANDLER_ARGS;
131 int sysctl_handle_long SYSCTL_HANDLER_ARGS;
132 int sysctl_handle_intptr SYSCTL_HANDLER_ARGS;
133 int sysctl_handle_string SYSCTL_HANDLER_ARGS;
134 int sysctl_handle_opaque SYSCTL_HANDLER_ARGS;
135 
136 /* This constructs a "raw" MIB oid. */
137 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
138 	static struct sysctl_oid sysctl__##parent##_##name = { \
139 		nbr, kind, a1, a2, #name, handler, fmt }; \
140 	DATA_SET(sysctl_##parent, sysctl__##parent##_##name)
141 
142 /* This constructs a node from which other oids can hang. */
143 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
144 	extern struct linker_set sysctl_##parent##_##name; \
145 	SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
146 		(void*)&sysctl_##parent##_##name, 0, handler, "N", descr); \
147 	DATA_SET(sysctl_##parent##_##name, sysctl__##parent##_##name)
148 
149 /* Oid for a string.  len can be 0 to indicate '\0' termination. */
150 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
151 	SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
152 		arg, len, sysctl_handle_string, "A", descr)
153 
154 /* Oid for an int.  If ptr is NULL, val is returned. */
155 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
156 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
157 		ptr, val, sysctl_handle_int, "I", descr)
158 
159 /* Oid for a long.  The pointer must be non NULL. */
160 #define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \
161 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
162 		ptr, 0, sysctl_handle_long, "L", descr)
163 
164 /* Oid for an opaque object.  Specified by a pointer and a length. */
165 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
166 	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
167 		ptr, len, sysctl_handle_opaque, fmt, descr)
168 
169 /* Oid for a struct.  Specified by a pointer and a type. */
170 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
171 	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
172 		ptr, sizeof(struct type), sysctl_handle_opaque, \
173 		"S," #type, descr)
174 
175 /* Oid for a procedure.  Specified by a pointer and an arg. */
176 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
177 	SYSCTL_OID(parent, nbr, name, access, \
178 		ptr, arg, handler, fmt, descr)
179 #endif /* KERNEL */
180 
181 /*
182  * Top-level identifiers
183  */
184 #define	CTL_UNSPEC	0		/* unused */
185 #define	CTL_KERN	1		/* "high kernel": proc, limits */
186 #define	CTL_VM		2		/* virtual memory */
187 #define	CTL_VFS		3		/* file system, mount type is next */
188 #define	CTL_NET		4		/* network, see socket.h */
189 #define	CTL_DEBUG	5		/* debugging parameters */
190 #define	CTL_HW		6		/* generic cpu/io */
191 #define	CTL_MACHDEP	7		/* machine dependent */
192 #define	CTL_USER	8		/* user-level */
193 #define	CTL_P1003_1B	9		/* POSIX 1003.1B */
194 #define	CTL_MAXID	10		/* number of valid top-level ids */
195 
196 #define CTL_NAMES { \
197 	{ 0, 0 }, \
198 	{ "kern", CTLTYPE_NODE }, \
199 	{ "vm", CTLTYPE_NODE }, \
200 	{ "vfs", CTLTYPE_NODE }, \
201 	{ "net", CTLTYPE_NODE }, \
202 	{ "debug", CTLTYPE_NODE }, \
203 	{ "hw", CTLTYPE_NODE }, \
204 	{ "machdep", CTLTYPE_NODE }, \
205 	{ "user", CTLTYPE_NODE }, \
206 	{ "p1003_1b", CTLTYPE_NODE }, \
207 }
208 
209 /*
210  * CTL_KERN identifiers
211  */
212 #define	KERN_OSTYPE	 	 1	/* string: system version */
213 #define	KERN_OSRELEASE	 	 2	/* string: system release */
214 #define	KERN_OSREV	 	 3	/* int: system revision */
215 #define	KERN_VERSION	 	 4	/* string: compile time info */
216 #define	KERN_MAXVNODES	 	 5	/* int: max vnodes */
217 #define	KERN_MAXPROC	 	 6	/* int: max processes */
218 #define	KERN_MAXFILES	 	 7	/* int: max open files */
219 #define	KERN_ARGMAX	 	 8	/* int: max arguments to exec */
220 #define	KERN_SECURELVL	 	 9	/* int: system security level */
221 #define	KERN_HOSTNAME		10	/* string: hostname */
222 #define	KERN_HOSTID		11	/* int: host identifier */
223 #define	KERN_CLOCKRATE		12	/* struct: struct clockrate */
224 #define	KERN_VNODE		13	/* struct: vnode structures */
225 #define	KERN_PROC		14	/* struct: process entries */
226 #define	KERN_FILE		15	/* struct: file entries */
227 #define	KERN_PROF		16	/* node: kernel profiling info */
228 #define	KERN_POSIX1		17	/* int: POSIX.1 version */
229 #define	KERN_NGROUPS		18	/* int: # of supplemental group ids */
230 #define	KERN_JOB_CONTROL	19	/* int: is job control available */
231 #define	KERN_SAVED_IDS		20	/* int: saved set-user/group-ID */
232 #define	KERN_BOOTTIME		21	/* struct: time kernel was booted */
233 #define KERN_NISDOMAINNAME	22	/* string: YP domain name */
234 #define KERN_UPDATEINTERVAL	23	/* int: update process sleep time */
235 #define KERN_OSRELDATE		24	/* int: OS release date */
236 #define KERN_NTP_PLL		25	/* node: NTP PLL control */
237 #define	KERN_BOOTFILE		26	/* string: name of booted kernel */
238 #define	KERN_MAXFILESPERPROC	27	/* int: max open files per proc */
239 #define	KERN_MAXPROCPERUID 	28	/* int: max processes per uid */
240 #define KERN_DUMPDEV		29	/* dev_t: device to dump on */
241 #define	KERN_IPC		30	/* node: anything related to IPC */
242 #define	KERN_DUMMY		31	/* unused */
243 #define	KERN_PS_STRINGS		32	/* int: address of PS_STRINGS */
244 #define	KERN_USRSTACK		33	/* int: address of USRSTACK */
245 #define	KERN_LOGSIGEXIT		34	/* int: do we log sigexit procs? */
246 #define KERN_MAXID		35      /* number of valid kern ids */
247 
248 #define CTL_KERN_NAMES { \
249 	{ 0, 0 }, \
250 	{ "ostype", CTLTYPE_STRING }, \
251 	{ "osrelease", CTLTYPE_STRING }, \
252 	{ "osrevision", CTLTYPE_INT }, \
253 	{ "version", CTLTYPE_STRING }, \
254 	{ "maxvnodes", CTLTYPE_INT }, \
255 	{ "maxproc", CTLTYPE_INT }, \
256 	{ "maxfiles", CTLTYPE_INT }, \
257 	{ "argmax", CTLTYPE_INT }, \
258 	{ "securelevel", CTLTYPE_INT }, \
259 	{ "hostname", CTLTYPE_STRING }, \
260 	{ "hostid", CTLTYPE_INT }, \
261 	{ "clockrate", CTLTYPE_STRUCT }, \
262 	{ "vnode", CTLTYPE_STRUCT }, \
263 	{ "proc", CTLTYPE_STRUCT }, \
264 	{ "file", CTLTYPE_STRUCT }, \
265 	{ "profiling", CTLTYPE_NODE }, \
266 	{ "posix1version", CTLTYPE_INT }, \
267 	{ "ngroups", CTLTYPE_INT }, \
268 	{ "job_control", CTLTYPE_INT }, \
269 	{ "saved_ids", CTLTYPE_INT }, \
270 	{ "boottime", CTLTYPE_STRUCT }, \
271 	{ "nisdomainname", CTLTYPE_STRING }, \
272 	{ "update", CTLTYPE_INT }, \
273 	{ "osreldate", CTLTYPE_INT }, \
274         { "ntp_pll", CTLTYPE_NODE }, \
275 	{ "bootfile", CTLTYPE_STRING }, \
276 	{ "maxfilesperproc", CTLTYPE_INT }, \
277 	{ "maxprocperuid", CTLTYPE_INT }, \
278 	{ "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
279 	{ "ipc", CTLTYPE_NODE }, \
280 	{ "dummy", CTLTYPE_INT }, \
281 	{ "ps_strings", CTLTYPE_INT }, \
282 	{ "usrstack", CTLTYPE_INT }, \
283 	{ "logsigexit", CTLTYPE_INT }, \
284 }
285 
286 /*
287  * CTL_VFS identifiers
288  */
289 #define CTL_VFS_NAMES { \
290 	{ "vfsconf", CTLTYPE_STRUCT }, \
291 }
292 
293 /*
294  * KERN_PROC subtypes
295  */
296 #define KERN_PROC_ALL		0	/* everything */
297 #define	KERN_PROC_PID		1	/* by process id */
298 #define	KERN_PROC_PGRP		2	/* by process group id */
299 #define	KERN_PROC_SESSION	3	/* by session of pid */
300 #define	KERN_PROC_TTY		4	/* by controlling tty */
301 #define	KERN_PROC_UID		5	/* by effective uid */
302 #define	KERN_PROC_RUID		6	/* by real uid */
303 
304 /*
305  * KERN_IPC identifiers
306  */
307 #define KIPC_MAXSOCKBUF		1	/* int: max size of a socket buffer */
308 #define	KIPC_SOCKBUF_WASTE	2	/* int: wastage factor in sockbuf */
309 #define	KIPC_SOMAXCONN		3	/* int: max length of connection q */
310 #define	KIPC_MAX_LINKHDR	4	/* int: max length of link header */
311 #define	KIPC_MAX_PROTOHDR	5	/* int: max length of network header */
312 #define	KIPC_MAX_HDR		6	/* int: max total length of headers */
313 #define	KIPC_MAX_DATALEN	7	/* int: max length of data? */
314 #define	KIPC_MBSTAT		8	/* struct: mbuf usage statistics */
315 #define	KIPC_NMBCLUSTERS	9	/* int: maximum mbuf clusters */
316 
317 /*
318  * CTL_HW identifiers
319  */
320 #define	HW_MACHINE	 1		/* string: machine class */
321 #define	HW_MODEL	 2		/* string: specific machine model */
322 #define	HW_NCPU		 3		/* int: number of cpus */
323 #define	HW_BYTEORDER	 4		/* int: machine byte order */
324 #define	HW_PHYSMEM	 5		/* int: total memory */
325 #define	HW_USERMEM	 6		/* int: non-kernel memory */
326 #define	HW_PAGESIZE	 7		/* int: software page size */
327 #define	HW_DISKNAMES	 8		/* strings: disk drive names */
328 #define	HW_DISKSTATS	 9		/* struct: diskstats[] */
329 #define HW_FLOATINGPT	10		/* int: has HW floating point? */
330 #define HW_MACHINE_ARCH	11		/* string: machine architecture */
331 #define	HW_MAXID	12		/* number of valid hw ids */
332 
333 #define CTL_HW_NAMES { \
334 	{ 0, 0 }, \
335 	{ "machine", CTLTYPE_STRING }, \
336 	{ "model", CTLTYPE_STRING }, \
337 	{ "ncpu", CTLTYPE_INT }, \
338 	{ "byteorder", CTLTYPE_INT }, \
339 	{ "physmem", CTLTYPE_INT }, \
340 	{ "usermem", CTLTYPE_INT }, \
341 	{ "pagesize", CTLTYPE_INT }, \
342 	{ "disknames", CTLTYPE_STRUCT }, \
343 	{ "diskstats", CTLTYPE_STRUCT }, \
344 	{ "floatingpoint", CTLTYPE_INT }, \
345 }
346 
347 /*
348  * CTL_USER definitions
349  */
350 #define	USER_CS_PATH		 1	/* string: _CS_PATH */
351 #define	USER_BC_BASE_MAX	 2	/* int: BC_BASE_MAX */
352 #define	USER_BC_DIM_MAX		 3	/* int: BC_DIM_MAX */
353 #define	USER_BC_SCALE_MAX	 4	/* int: BC_SCALE_MAX */
354 #define	USER_BC_STRING_MAX	 5	/* int: BC_STRING_MAX */
355 #define	USER_COLL_WEIGHTS_MAX	 6	/* int: COLL_WEIGHTS_MAX */
356 #define	USER_EXPR_NEST_MAX	 7	/* int: EXPR_NEST_MAX */
357 #define	USER_LINE_MAX		 8	/* int: LINE_MAX */
358 #define	USER_RE_DUP_MAX		 9	/* int: RE_DUP_MAX */
359 #define	USER_POSIX2_VERSION	10	/* int: POSIX2_VERSION */
360 #define	USER_POSIX2_C_BIND	11	/* int: POSIX2_C_BIND */
361 #define	USER_POSIX2_C_DEV	12	/* int: POSIX2_C_DEV */
362 #define	USER_POSIX2_CHAR_TERM	13	/* int: POSIX2_CHAR_TERM */
363 #define	USER_POSIX2_FORT_DEV	14	/* int: POSIX2_FORT_DEV */
364 #define	USER_POSIX2_FORT_RUN	15	/* int: POSIX2_FORT_RUN */
365 #define	USER_POSIX2_LOCALEDEF	16	/* int: POSIX2_LOCALEDEF */
366 #define	USER_POSIX2_SW_DEV	17	/* int: POSIX2_SW_DEV */
367 #define	USER_POSIX2_UPE		18	/* int: POSIX2_UPE */
368 #define	USER_STREAM_MAX		19	/* int: POSIX2_STREAM_MAX */
369 #define	USER_TZNAME_MAX		20	/* int: POSIX2_TZNAME_MAX */
370 #define	USER_MAXID		21	/* number of valid user ids */
371 
372 #define	CTL_USER_NAMES { \
373 	{ 0, 0 }, \
374 	{ "cs_path", CTLTYPE_STRING }, \
375 	{ "bc_base_max", CTLTYPE_INT }, \
376 	{ "bc_dim_max", CTLTYPE_INT }, \
377 	{ "bc_scale_max", CTLTYPE_INT }, \
378 	{ "bc_string_max", CTLTYPE_INT }, \
379 	{ "coll_weights_max", CTLTYPE_INT }, \
380 	{ "expr_nest_max", CTLTYPE_INT }, \
381 	{ "line_max", CTLTYPE_INT }, \
382 	{ "re_dup_max", CTLTYPE_INT }, \
383 	{ "posix2_version", CTLTYPE_INT }, \
384 	{ "posix2_c_bind", CTLTYPE_INT }, \
385 	{ "posix2_c_dev", CTLTYPE_INT }, \
386 	{ "posix2_char_term", CTLTYPE_INT }, \
387 	{ "posix2_fort_dev", CTLTYPE_INT }, \
388 	{ "posix2_fort_run", CTLTYPE_INT }, \
389 	{ "posix2_localedef", CTLTYPE_INT }, \
390 	{ "posix2_sw_dev", CTLTYPE_INT }, \
391 	{ "posix2_upe", CTLTYPE_INT }, \
392 	{ "stream_max", CTLTYPE_INT }, \
393 	{ "tzname_max", CTLTYPE_INT }, \
394 }
395 
396 #define CTL_P1003_1B_ASYNCHRONOUS_IO		1	/* boolean */
397 #define CTL_P1003_1B_MAPPED_FILES		2	/* boolean */
398 #define CTL_P1003_1B_MEMLOCK			3	/* boolean */
399 #define CTL_P1003_1B_MEMLOCK_RANGE		4	/* boolean */
400 #define CTL_P1003_1B_MEMORY_PROTECTION		5	/* boolean */
401 #define CTL_P1003_1B_MESSAGE_PASSING		6	/* boolean */
402 #define CTL_P1003_1B_PRIORITIZED_IO		7	/* boolean */
403 #define CTL_P1003_1B_PRIORITY_SCHEDULING	8	/* boolean */
404 #define CTL_P1003_1B_REALTIME_SIGNALS		9	/* boolean */
405 #define CTL_P1003_1B_SEMAPHORES			10	/* boolean */
406 #define CTL_P1003_1B_FSYNC			11	/* boolean */
407 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS	12	/* boolean */
408 #define CTL_P1003_1B_SYNCHRONIZED_IO		13	/* boolean */
409 #define CTL_P1003_1B_TIMERS			14	/* boolean */
410 #define CTL_P1003_1B_AIO_LISTIO_MAX		15	/* int */
411 #define CTL_P1003_1B_AIO_MAX			16	/* int */
412 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX		17	/* int */
413 #define CTL_P1003_1B_DELAYTIMER_MAX		18	/* int */
414 #define CTL_P1003_1B_MQ_OPEN_MAX		19	/* int */
415 #define CTL_P1003_1B_PAGESIZE			20	/* int */
416 #define CTL_P1003_1B_RTSIG_MAX			21	/* int */
417 #define CTL_P1003_1B_SEM_NSEMS_MAX		22	/* int */
418 #define CTL_P1003_1B_SEM_VALUE_MAX		23	/* int */
419 #define CTL_P1003_1B_SIGQUEUE_MAX		24	/* int */
420 #define CTL_P1003_1B_TIMER_MAX			25	/* int */
421 
422 #define CTL_P1003_1B_MAXID		26
423 
424 #define	CTL_P1003_1B_NAMES { \
425 	{ 0, 0 }, \
426 	{ "asynchronous_io", CTLTYPE_INT }, \
427 	{ "mapped_files", CTLTYPE_INT }, \
428 	{ "memlock", CTLTYPE_INT }, \
429 	{ "memlock_range", CTLTYPE_INT }, \
430 	{ "memory_protection", CTLTYPE_INT }, \
431 	{ "message_passing", CTLTYPE_INT }, \
432 	{ "prioritized_io", CTLTYPE_INT }, \
433 	{ "priority_scheduling", CTLTYPE_INT }, \
434 	{ "realtime_signals", CTLTYPE_INT }, \
435 	{ "semaphores", CTLTYPE_INT }, \
436 	{ "fsync", CTLTYPE_INT }, \
437 	{ "shared_memory_objects", CTLTYPE_INT }, \
438 	{ "synchronized_io", CTLTYPE_INT }, \
439 	{ "timers", CTLTYPE_INT }, \
440 	{ "aio_listio_max", CTLTYPE_INT }, \
441 	{ "aio_max", CTLTYPE_INT }, \
442 	{ "aio_prio_delta_max", CTLTYPE_INT }, \
443 	{ "delaytimer_max", CTLTYPE_INT }, \
444 	{ "mq_open_max", CTLTYPE_INT }, \
445 	{ "pagesize", CTLTYPE_INT }, \
446 	{ "rtsig_max", CTLTYPE_INT }, \
447 	{ "nsems_max", CTLTYPE_INT }, \
448 	{ "sem_value_max", CTLTYPE_INT }, \
449 	{ "sigqueue_max", CTLTYPE_INT }, \
450 	{ "timer_max", CTLTYPE_INT }, \
451 }
452 
453 #ifdef KERNEL
454 
455 extern char	machine[];
456 extern char	osrelease[];
457 extern char	ostype[];
458 
459 int	kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old,
460 		      size_t *oldlenp, void *new, size_t newlen,
461 		      size_t *retval);
462 void	sysctl_order_all(void);
463 int	userland_sysctl(struct proc *p, int *name, u_int namelen, void *old,
464 			size_t *oldlenp, int inkernel, void *new, size_t newlen,
465 			size_t *retval);
466 
467 #else	/* !KERNEL */
468 #include <sys/cdefs.h>
469 
470 __BEGIN_DECLS
471 int	sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
472 int	sysctlbyname __P((const char *, void *, size_t *, void *, size_t));
473 __END_DECLS
474 #endif	/* KERNEL */
475 
476 #endif	/* !_SYS_SYSCTL_H_ */
477