2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
36 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
37 * $FreeBSD: head/sys/sys/sysctl.h 204170 2010-02-21 13:57:02Z ed $
40 #ifndef _SYS_SYSCTL_H_
41 #define _SYS_SYSCTL_H_
44 #include <sys/types.h>
47 #include <sys/queue.h>
51 * Definitions for sysctl call. The sysctl call uses a hierarchical name
52 * for objects that can be examined or modified. The name is expressed as
53 * a sequence of integers. Like a file path name, the meaning of each
54 * component depends on its place in the hierarchy. The top-level and kern
55 * identifiers are defined here, and other identifiers are defined in the
56 * respective subsystem header files.
59 #define CTL_MAXNAME 12 /* largest number of components supported */
62 * Each subsystem defined by sysctl defines a list of variables
63 * for that subsystem. Each name is either a node with further
64 * levels defined below it, or it is a leaf of some particular
65 * type given below. Each sysctl level defines a set of name/type
66 * pairs to be used by sysctl(1) in manipulating the subsystem.
69 char *ctl_name; /* subsystem name */
70 int ctl_type; /* type of name */
73 #define CTLTYPE 0xf /* Mask for the type */
74 #define CTLTYPE_NODE 1 /* name is a node */
75 #define CTLTYPE_INT 2 /* name describes an integer */
76 #define CTLTYPE_STRING 3 /* name describes a string */
77 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
78 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
79 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
80 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
81 #define CTLTYPE_LONG 7 /* name describes a long */
82 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
83 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */
85 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
86 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
87 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
88 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
89 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
90 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
91 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
92 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
93 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
94 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
97 * USE THIS instead of a hardwired number from the categories below
98 * to get dynamically assigned sysctl entries using the linker-set
99 * technology. This is the way nearly all new sysctl variables should
101 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
103 #define OID_AUTO (-1)
107 #include <sys/kernel.h> /* for DATA_SET */
109 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
110 struct sysctl_req *req
113 * This describes the access space for a sysctl request. This is needed
114 * so that we can use the interface from the kernel or from user-space.
117 struct thread *td; /* used for access checking */
118 int lock; /* wiring state */
122 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
126 int (*newfunc)(struct sysctl_req *, void *, size_t);
131 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
134 * This describes one "oid" in the MIB tree. Potentially more nodes can
135 * be hidden behind it, expanded by the handler.
138 struct sysctl_oid_list *oid_parent;
139 SLIST_ENTRY(sysctl_oid) oid_link;
144 const char *oid_name;
145 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
149 const char *oid_descr;
152 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
153 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
155 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
156 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
157 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
158 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
159 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
160 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
162 extern struct lock sysctllock;
164 #define SYSCTL_XLOCK() lockmgr(&sysctllock, LK_EXCLUSIVE)
165 #define SYSCTL_XUNLOCK() lockmgr(&sysctllock, LK_RELEASE)
166 #define SYSCTL_ASSERT_XLOCKED() \
167 KKASSERT(lockstatus(&sysctllock, curthread) != 0)
170 * These functions are used to add/remove an oid from the mib.
172 void sysctl_register_oid(struct sysctl_oid *oidp);
173 void sysctl_unregister_oid(struct sysctl_oid *oidp);
175 /* Declare a static oid to allow child oids to be added to it. */
176 #define SYSCTL_DECL(name) \
177 extern struct sysctl_oid_list sysctl_##name##_children
179 /* Hide these in macros */
180 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \
181 (oid_ptr)->oid_arg1 = (children); \
183 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
185 #define SYSCTL_STATIC_CHILDREN(oid_name) \
186 (&sysctl_##oid_name##_children)
188 /* === Structs and macros related to context handling === */
190 /* All dynamically created sysctls can be tracked in a context list. */
191 struct sysctl_ctx_entry {
192 struct sysctl_oid *entry;
193 TAILQ_ENTRY(sysctl_ctx_entry) link;
196 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
198 #define SYSCTL_NODE_CHILDREN(parent, name) \
199 sysctl_##parent##_##name##_children
201 #ifndef NO_SYSCTL_DESCR
204 #define __DESCR(d) ""
207 /* This constructs a "raw" MIB oid. */
208 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)\
209 static struct sysctl_oid sysctl__##parent##_##name = { \
210 &sysctl_##parent##_children, \
223 DATA_SET(sysctl_set, sysctl__##parent##_##name)
225 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
226 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr);
228 /* This constructs a node from which other oids can hang. */
229 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
230 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \
231 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \
232 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr)
234 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
235 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
236 0, 0, handler, "N", descr)
238 /* Oid for a string. len can be 0 to indicate '\0' termination. */
239 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
240 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
241 arg, len, sysctl_handle_string, "A", descr)
243 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
245 arg, len, sysctl_handle_string, "A", descr)
247 /* Oid for an int. If ptr is NULL, val is returned. */
248 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
249 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \
250 ptr, val, sysctl_handle_int, "I", descr)
252 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \
254 ptr, val, sysctl_handle_int, "I", descr)
256 /* Oid for a quad. If ptr is NULL, val is returned. */
257 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
258 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|(access), \
259 ptr, val, sysctl_handle_quad, "Q", descr)
261 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
262 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|(access), \
263 ptr, val, sysctl_handle_quad, "Q", descr)
265 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */
266 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
267 SYSCTL_OID(parent, nbr, name, CTLTYPE_UQUAD|(access), \
268 ptr, val, sysctl_handle_quad, "QU", descr)
270 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
271 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UQUAD|(access), \
272 ptr, val, sysctl_handle_quad, "QU", descr)
274 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
275 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
276 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \
277 ptr, val, sysctl_handle_int, "IU", descr)
279 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
280 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \
281 ptr, val, sysctl_handle_int, "IU", descr)
283 /* Oid for a long. The pointer must be non NULL. */
284 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
285 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \
286 ptr, val, sysctl_handle_long, "L", descr)
288 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
289 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \
290 ptr, 0, sysctl_handle_long, "L", descr)
292 /* Oid for a long. The pointer must be non NULL. */
293 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
294 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \
295 ptr, val, sysctl_handle_long, "LU", descr)
297 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
298 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \
299 ptr, 0, sysctl_handle_long, "LU", descr)
301 /* Oid for an opaque object. Specified by a pointer and a length. */
302 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
303 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
304 ptr, len, sysctl_handle_opaque, fmt, descr)
306 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
307 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
308 ptr, len, sysctl_handle_opaque, fmt, descr)
310 /* Oid for a struct. Specified by a pointer and a type. */
311 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
312 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
313 ptr, sizeof(struct type), sysctl_handle_opaque, \
316 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
317 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
318 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
320 /* Oid for a procedure. Specified by a pointer and an arg. */
321 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
322 SYSCTL_OID(parent, nbr, name, (access), \
323 ptr, arg, handler, fmt, descr)
325 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
326 sysctl_add_oid(ctx, parent, nbr, name, (access), \
327 ptr, arg, handler, fmt, descr)
332 * Top-level identifiers
334 #define CTL_UNSPEC 0 /* unused */
335 #define CTL_KERN 1 /* "high kernel": proc, limits */
336 #define CTL_VM 2 /* virtual memory */
337 #define CTL_VFS 3 /* file system, mount type is next */
338 #define CTL_NET 4 /* network, see socket.h */
339 #define CTL_DEBUG 5 /* debugging parameters */
340 #define CTL_HW 6 /* generic cpu/io */
341 #define CTL_MACHDEP 7 /* machine dependent */
342 #define CTL_USER 8 /* user-level */
343 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
344 #define CTL_LWKT 10 /* light weight kernel threads */
345 #define CTL_MAXID 11 /* number of valid top-level ids */
347 #define CTL_NAMES { \
349 { "kern", CTLTYPE_NODE }, \
350 { "vm", CTLTYPE_NODE }, \
351 { "vfs", CTLTYPE_NODE }, \
352 { "net", CTLTYPE_NODE }, \
353 { "debug", CTLTYPE_NODE }, \
354 { "hw", CTLTYPE_NODE }, \
355 { "machdep", CTLTYPE_NODE }, \
356 { "user", CTLTYPE_NODE }, \
357 { "p1003_1b", CTLTYPE_NODE }, \
358 { "lwkt", CTLTYPE_NODE }, \
362 * CTL_KERN identifiers
364 #define KERN_OSTYPE 1 /* string: system version */
365 #define KERN_OSRELEASE 2 /* string: system release */
366 #define KERN_OSREV 3 /* int: system revision */
367 #define KERN_VERSION 4 /* string: compile time info */
368 #define KERN_MAXVNODES 5 /* int: max vnodes */
369 #define KERN_MAXPROC 6 /* int: max processes */
370 #define KERN_MAXFILES 7 /* int: max open files */
371 #define KERN_ARGMAX 8 /* int: max arguments to exec */
372 #define KERN_SECURELVL 9 /* int: system security level */
373 #define KERN_HOSTNAME 10 /* string: hostname */
374 #define KERN_HOSTID 11 /* int: host identifier */
375 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
376 #define KERN_VNODE 13 /* struct: vnode structures */
377 #define KERN_PROC 14 /* struct: process entries */
378 #define KERN_FILE 15 /* struct: file entries */
379 #define KERN_PROF 16 /* node: kernel profiling info */
380 #define KERN_POSIX1 17 /* int: POSIX.1 version */
381 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
382 #define KERN_JOB_CONTROL 19 /* int: is job control available */
383 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
384 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
385 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
386 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
387 #define KERN_OSRELDATE 24 /* int: OS release date */
388 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
389 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
390 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
391 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
392 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */
393 #define KERN_IPC 30 /* node: anything related to IPC */
394 #define KERN_DUMMY 31 /* unused */
395 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
396 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
397 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
398 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
399 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
400 #define KERN_MAXID 37 /* number of valid kern ids */
402 #define CTL_KERN_NAMES { \
404 { "ostype", CTLTYPE_STRING }, \
405 { "osrelease", CTLTYPE_STRING }, \
406 { "osrevision", CTLTYPE_INT }, \
407 { "version", CTLTYPE_STRING }, \
408 { "maxvnodes", CTLTYPE_INT }, \
409 { "maxproc", CTLTYPE_INT }, \
410 { "maxfiles", CTLTYPE_INT }, \
411 { "argmax", CTLTYPE_INT }, \
412 { "securelevel", CTLTYPE_INT }, \
413 { "hostname", CTLTYPE_STRING }, \
414 { "hostid", CTLTYPE_UINT }, \
415 { "clockrate", CTLTYPE_STRUCT }, \
416 { "vnode", CTLTYPE_STRUCT }, \
417 { "proc", CTLTYPE_STRUCT }, \
418 { "file", CTLTYPE_STRUCT }, \
419 { "profiling", CTLTYPE_NODE }, \
420 { "posix1version", CTLTYPE_INT }, \
421 { "ngroups", CTLTYPE_INT }, \
422 { "job_control", CTLTYPE_INT }, \
423 { "saved_ids", CTLTYPE_INT }, \
424 { "boottime", CTLTYPE_STRUCT }, \
425 { "nisdomainname", CTLTYPE_STRING }, \
426 { "update", CTLTYPE_INT }, \
427 { "osreldate", CTLTYPE_INT }, \
428 { "ntp_pll", CTLTYPE_NODE }, \
429 { "bootfile", CTLTYPE_STRING }, \
430 { "maxfilesperproc", CTLTYPE_INT }, \
431 { "maxprocperuid", CTLTYPE_INT }, \
432 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
433 { "ipc", CTLTYPE_NODE }, \
434 { "dummy", CTLTYPE_INT }, \
435 { "ps_strings", CTLTYPE_INT }, \
436 { "usrstack", CTLTYPE_INT }, \
437 { "logsigexit", CTLTYPE_INT }, \
438 { "iov_max", CTLTYPE_INT }, \
439 { "maxposixlocksperuid", CTLTYPE_INT }, \
443 * CTL_VFS identifiers
445 #define CTL_VFS_NAMES { \
446 { "vfsconf", CTLTYPE_STRUCT }, \
452 #define KERN_PROC_ALL 0 /* everything */
453 #define KERN_PROC_PID 1 /* by process id */
454 #define KERN_PROC_PGRP 2 /* by process group id */
455 #define KERN_PROC_SESSION 3 /* by session of pid */
456 #define KERN_PROC_TTY 4 /* by controlling tty */
457 #define KERN_PROC_UID 5 /* by effective uid */
458 #define KERN_PROC_RUID 6 /* by real uid */
459 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
460 #define KERN_PROC_CWD 8 /* get cwd */
461 #define KERN_PROC_PATHNAME 9 /* path to executable */
464 #define KERN_PROC_FLAGMASK 0x10
465 #define KERN_PROC_FLAG_LWP 0x10
468 * KERN_IPC identifiers
470 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
471 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
472 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
473 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
474 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
475 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
476 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
477 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
478 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
483 #define HW_MACHINE 1 /* string: machine class */
484 #define HW_MODEL 2 /* string: specific machine model */
485 #define HW_NCPU 3 /* int: number of cpus */
486 #define HW_BYTEORDER 4 /* int: machine byte order */
487 #define HW_PHYSMEM 5 /* int: total memory */
488 #define HW_USERMEM 6 /* int: non-kernel memory */
489 #define HW_PAGESIZE 7 /* int: software page size */
490 #define HW_DISKNAMES 8 /* strings: disk drive names */
491 #define HW_DISKSTATS 9 /* struct: diskstats[] */
492 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
493 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
494 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */
495 #define HW_SENSORS 13 /* node: hardware sensors */
496 #define HW_MAXID 14 /* number of valid hw ids */
498 #define CTL_HW_NAMES { \
500 { "machine", CTLTYPE_STRING }, \
501 { "model", CTLTYPE_STRING }, \
502 { "ncpu", CTLTYPE_INT }, \
503 { "byteorder", CTLTYPE_INT }, \
504 { "physmem", CTLTYPE_ULONG }, \
505 { "usermem", CTLTYPE_UINT }, \
506 { "pagesize", CTLTYPE_INT }, \
507 { "disknames", CTLTYPE_STRUCT }, \
508 { "diskstats", CTLTYPE_STRUCT }, \
509 { "floatingpoint", CTLTYPE_INT }, \
510 { "arch", CTLTYPE_STRING }, \
511 { "platform", CTLTYPE_STRING }, \
512 { "sensors", CTLTYPE_NODE }, \
516 * CTL_USER definitions
518 #define USER_CS_PATH 1 /* string: _CS_PATH */
519 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
520 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
521 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
522 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
523 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
524 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
525 #define USER_LINE_MAX 8 /* int: LINE_MAX */
526 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
527 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
528 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
529 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
530 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
531 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
532 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
533 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
534 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
535 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
536 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
537 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
538 #define USER_MAXID 21 /* number of valid user ids */
540 #define CTL_USER_NAMES { \
542 { "cs_path", CTLTYPE_STRING }, \
543 { "bc_base_max", CTLTYPE_INT }, \
544 { "bc_dim_max", CTLTYPE_INT }, \
545 { "bc_scale_max", CTLTYPE_INT }, \
546 { "bc_string_max", CTLTYPE_INT }, \
547 { "coll_weights_max", CTLTYPE_INT }, \
548 { "expr_nest_max", CTLTYPE_INT }, \
549 { "line_max", CTLTYPE_INT }, \
550 { "re_dup_max", CTLTYPE_INT }, \
551 { "posix2_version", CTLTYPE_INT }, \
552 { "posix2_c_bind", CTLTYPE_INT }, \
553 { "posix2_c_dev", CTLTYPE_INT }, \
554 { "posix2_char_term", CTLTYPE_INT }, \
555 { "posix2_fort_dev", CTLTYPE_INT }, \
556 { "posix2_fort_run", CTLTYPE_INT }, \
557 { "posix2_localedef", CTLTYPE_INT }, \
558 { "posix2_sw_dev", CTLTYPE_INT }, \
559 { "posix2_upe", CTLTYPE_INT }, \
560 { "stream_max", CTLTYPE_INT }, \
561 { "tzname_max", CTLTYPE_INT }, \
564 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
565 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
566 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
567 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
568 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
569 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
570 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
571 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
572 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
573 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
574 #define CTL_P1003_1B_FSYNC 11 /* boolean */
575 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
576 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
577 #define CTL_P1003_1B_TIMERS 14 /* boolean */
578 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
579 #define CTL_P1003_1B_AIO_MAX 16 /* int */
580 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
581 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
582 #define CTL_P1003_1B_UNUSED1 19 /* int */
583 #define CTL_P1003_1B_PAGESIZE 20 /* int */
584 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
585 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
586 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
587 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
588 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
590 #define CTL_P1003_1B_MAXID 26
592 #define CTL_P1003_1B_NAMES { \
594 { "asynchronous_io", CTLTYPE_INT }, \
595 { "mapped_files", CTLTYPE_INT }, \
596 { "memlock", CTLTYPE_INT }, \
597 { "memlock_range", CTLTYPE_INT }, \
598 { "memory_protection", CTLTYPE_INT }, \
599 { "message_passing", CTLTYPE_INT }, \
600 { "prioritized_io", CTLTYPE_INT }, \
601 { "priority_scheduling", CTLTYPE_INT }, \
602 { "realtime_signals", CTLTYPE_INT }, \
603 { "semaphores", CTLTYPE_INT }, \
604 { "fsync", CTLTYPE_INT }, \
605 { "shared_memory_objects", CTLTYPE_INT }, \
606 { "synchronized_io", CTLTYPE_INT }, \
607 { "timers", CTLTYPE_INT }, \
608 { "aio_listio_max", CTLTYPE_INT }, \
609 { "aio_max", CTLTYPE_INT }, \
610 { "aio_prio_delta_max", CTLTYPE_INT }, \
611 { "delaytimer_max", CTLTYPE_INT }, \
612 { "unused1", CTLTYPE_INT }, \
613 { "pagesize", CTLTYPE_INT }, \
614 { "rtsig_max", CTLTYPE_INT }, \
615 { "nsems_max", CTLTYPE_INT }, \
616 { "sem_value_max", CTLTYPE_INT }, \
617 { "sigqueue_max", CTLTYPE_INT }, \
618 { "timer_max", CTLTYPE_INT }, \
624 * Declare some common oids.
626 extern struct sysctl_oid_list sysctl__children;
628 SYSCTL_DECL(_sysctl);
633 SYSCTL_DECL(_debug_sizeof);
636 SYSCTL_DECL(_hw_bus);
637 SYSCTL_DECL(_machdep);
639 SYSCTL_DECL(_compat);
641 SYSCTL_DECL(_security);
642 SYSCTL_DECL(_dsched);
645 * Common second-level oids.
647 SYSCTL_DECL(_kern_ipc);
649 extern char machine[];
650 extern char osrelease[];
651 extern char ostype[];
652 extern char kern_ident[];
654 /* Dynamic oid handling */
655 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
656 struct sysctl_oid_list *parent, int nbr, const char *name,
657 int kind, void *arg1, int arg2,
658 int (*handler) (SYSCTL_HANDLER_ARGS),
659 const char *fmt, const char *descr);
660 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
661 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
663 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
664 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
665 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
666 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
667 struct sysctl_oid *oidp);
668 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
669 struct sysctl_oid *oidp);
670 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
671 struct sysctl_oid *oidp);
673 int kernel_sysctl(int *name, u_int namelen, void *old,
674 size_t *oldlenp, void *new, size_t newlen,
676 int kernel_sysctlbyname(char *name,
677 void *old, size_t *oldlenp, void *new, size_t newlen,
679 int userland_sysctl(int *name, u_int namelen, void *old,
680 size_t *oldlenp, int inkernel, void *new, size_t newlen,
682 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
683 int *nindx, struct sysctl_req *req);
685 int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high);
688 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
689 struct sysctl_req *);
693 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
695 #include <sys/cdefs.h>
698 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
699 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
700 int sysctlnametomib (const char *, int *, size_t *);
703 #endif /* _KERNEL && _KERNEL_VIRTUAL */
705 #endif /* !_SYS_SYSCTL_H_ */