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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
33 * $FreeBSD: head/sys/sys/sysctl.h 204170 2010-02-21 13:57:02Z ed $
36 #ifndef _SYS_SYSCTL_H_
37 #define _SYS_SYSCTL_H_
40 #include <sys/types.h>
43 #include <sys/queue.h>
47 * Definitions for sysctl call. The sysctl call uses a hierarchical name
48 * for objects that can be examined or modified. The name is expressed as
49 * a sequence of integers. Like a file path name, the meaning of each
50 * component depends on its place in the hierarchy. The top-level and kern
51 * identifiers are defined here, and other identifiers are defined in the
52 * respective subsystem header files.
55 #define CTL_MAXNAME 12 /* largest number of components supported */
58 * Each subsystem defined by sysctl defines a list of variables
59 * for that subsystem. Each name is either a node with further
60 * levels defined below it, or it is a leaf of some particular
61 * type given below. Each sysctl level defines a set of name/type
62 * pairs to be used by sysctl(1) in manipulating the subsystem.
65 char *ctl_name; /* subsystem name */
66 int ctl_type; /* type of name */
69 #define CTLTYPE 0xf /* Mask for the type */
70 #define CTLTYPE_NODE 1 /* name is a node */
71 #define CTLTYPE_INT 2 /* name describes an integer */
72 #define CTLTYPE_STRING 3 /* name describes a string */
73 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
74 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
75 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
76 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
77 #define CTLTYPE_LONG 7 /* name describes a long */
78 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
79 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */
81 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
82 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
83 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
84 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
85 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
86 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
87 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
88 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
89 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
90 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
91 #define CTLFLAG_SHLOCK 0x00008000 /* shlock on write (def is exlock) */
92 #define CTLFLAG_EXLOCK 0x00004000 /* exlock on read (def is shlock) */
93 #define CTLFLAG_NOLOCK 0x00002000 /* no lock required */
94 #define CTLMASK_TYPE 0x0000000F /* type field */
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 #include <sys/lock.h>
112 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
113 struct sysctl_req *req
116 * This describes the access space for a sysctl request. This is needed
117 * so that we can use the interface from the kernel or from user-space.
120 struct thread *td; /* used for access checking */
121 int lock; /* wiring state */
125 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
129 int (*newfunc)(struct sysctl_req *, void *, size_t);
134 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
137 * This describes one "oid" in the MIB tree. Potentially more nodes can
138 * be hidden behind it, expanded by the handler.
141 struct sysctl_oid_list *oid_parent;
142 SLIST_ENTRY(sysctl_oid) oid_link;
147 const char *oid_name;
148 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
152 const char *oid_descr;
153 struct lock oid_lock; /* per-node lock */
156 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
157 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
158 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
160 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
161 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
162 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
163 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
164 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
165 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
167 extern struct lock sysctllock;
169 #define SYSCTL_XLOCK() _sysctl_xlock()
170 #define SYSCTL_XUNLOCK() _sysctl_xunlock()
171 #define SYSCTL_SLOCK() lockmgr(&mycpu->gd_sysctllock, LK_SHARED)
172 #define SYSCTL_SUNLOCK() lockmgr(&mycpu->gd_sysctllock, LK_RELEASE)
173 #define SYSCTL_ASSERT_LOCKED() \
174 KKASSERT(lockstatus(&mycpu->gd_sysctllock, curthread) != 0)
177 * These functions are used to add/remove an oid from the mib.
179 void sysctl_register_oid(struct sysctl_oid *oidp);
180 void sysctl_unregister_oid(struct sysctl_oid *oidp);
182 /* Declare a static oid to allow child oids to be added to it. */
183 #define SYSCTL_DECL(name) \
184 extern struct sysctl_oid_list sysctl_##name##_children
186 /* Hide these in macros */
187 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \
188 (oid_ptr)->oid_arg1 = (children); \
190 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
192 #define SYSCTL_STATIC_CHILDREN(oid_name) \
193 (&sysctl_##oid_name##_children)
195 /* === Structs and macros related to context handling === */
197 /* All dynamically created sysctls can be tracked in a context list. */
198 struct sysctl_ctx_entry {
199 struct sysctl_oid *entry;
200 TAILQ_ENTRY(sysctl_ctx_entry) link;
203 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
205 #define SYSCTL_NODE_CHILDREN(parent, name) \
206 sysctl_##parent##_##name##_children
208 #ifndef NO_SYSCTL_DESCR
211 #define __DESCR(d) ""
214 /* This constructs a "raw" MIB oid. */
215 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)\
216 static struct sysctl_oid sysctl__##parent##_##name = { \
217 &sysctl_##parent##_children, \
230 DATA_SET(sysctl_set, sysctl__##parent##_##name)
232 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
233 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr);
235 /* This constructs a node from which other oids can hang. */
236 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
237 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \
238 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \
239 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr)
241 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
242 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
243 0, 0, handler, "N", descr)
245 /* Oid for a string. len can be 0 to indicate '\0' termination. */
246 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
247 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
248 arg, len, sysctl_handle_string, "A", descr)
250 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
251 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
252 arg, len, sysctl_handle_string, "A", descr)
254 /* Oid for an int. If ptr is NULL, val is returned. */
255 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
256 SYSCTL_OID(parent, nbr, name, \
257 CTLTYPE_INT|CTLFLAG_NOLOCK|(access), \
258 ptr, val, sysctl_handle_int, "I", descr)
260 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
261 sysctl_add_oid(ctx, parent, nbr, name, \
262 CTLTYPE_INT|CTLFLAG_NOLOCK|(access), \
263 ptr, val, sysctl_handle_int, "I", descr)
265 /* Oid for a quad. If ptr is NULL, val is returned. */
266 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
267 SYSCTL_OID(parent, nbr, name, \
268 CTLTYPE_QUAD|CTLFLAG_NOLOCK|(access), \
269 ptr, val, sysctl_handle_quad, "Q", descr)
271 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
272 sysctl_add_oid(ctx, parent, nbr, name, \
273 CTLTYPE_QUAD|CTLFLAG_NOLOCK|(access), \
274 ptr, val, sysctl_handle_quad, "Q", descr)
276 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */
277 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
278 SYSCTL_OID(parent, nbr, name, \
279 CTLTYPE_UQUAD|CTLFLAG_NOLOCK|(access), \
280 ptr, val, sysctl_handle_quad, "QU", descr)
282 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
283 sysctl_add_oid(ctx, parent, nbr, name, \
284 CTLTYPE_UQUAD|CTLFLAG_NOLOCK|(access), \
285 ptr, val, sysctl_handle_quad, "QU", descr)
287 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
288 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
289 SYSCTL_OID(parent, nbr, name, \
290 CTLTYPE_UINT|CTLFLAG_NOLOCK|(access), \
291 ptr, val, sysctl_handle_int, "IU", descr)
293 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
294 sysctl_add_oid(ctx, parent, nbr, name, \
295 CTLTYPE_UINT|CTLFLAG_NOLOCK|(access), \
296 ptr, val, sysctl_handle_int, "IU", descr)
298 /* Oid for a long. The pointer must be non NULL. */
299 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
300 SYSCTL_OID(parent, nbr, name, \
301 CTLTYPE_LONG|CTLFLAG_NOLOCK|(access), \
302 ptr, val, sysctl_handle_long, "L", descr)
304 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
305 sysctl_add_oid(ctx, parent, nbr, name, \
306 CTLTYPE_LONG|CTLFLAG_NOLOCK|(access), \
307 ptr, 0, sysctl_handle_long, "L", descr)
309 /* Oid for a long. The pointer must be non NULL. */
310 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
311 SYSCTL_OID(parent, nbr, name, \
312 CTLTYPE_ULONG|CTLFLAG_NOLOCK|(access), \
313 ptr, val, sysctl_handle_long, "LU", descr)
315 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
316 sysctl_add_oid(ctx, parent, nbr, name, \
317 CTLTYPE_ULONG|CTLFLAG_NOLOCK|(access), \
318 ptr, 0, sysctl_handle_long, "LU", descr)
320 /* Oid for an opaque object. Specified by a pointer and a length. */
321 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
322 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
323 ptr, len, sysctl_handle_opaque, fmt, descr)
325 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
326 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
327 ptr, len, sysctl_handle_opaque, fmt, descr)
329 /* Oid for a struct. Specified by a pointer and a type. */
330 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
331 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
332 ptr, sizeof(struct type), sysctl_handle_opaque, \
335 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
336 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
337 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
339 /* Oid for a procedure. Specified by a pointer and an arg. */
340 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
341 SYSCTL_OID(parent, nbr, name, (access), \
342 ptr, arg, handler, fmt, descr)
344 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
345 sysctl_add_oid(ctx, parent, nbr, name, (access), \
346 ptr, arg, handler, fmt, descr)
351 * Top-level identifiers
353 #define CTL_UNSPEC 0 /* unused */
354 #define CTL_KERN 1 /* "high kernel": proc, limits */
355 #define CTL_VM 2 /* virtual memory */
356 #define CTL_VFS 3 /* file system, mount type is next */
357 #define CTL_NET 4 /* network, see socket.h */
358 #define CTL_DEBUG 5 /* debugging parameters */
359 #define CTL_HW 6 /* generic cpu/io */
360 #define CTL_MACHDEP 7 /* machine dependent */
361 #define CTL_USER 8 /* user-level */
362 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
363 #define CTL_LWKT 10 /* light weight kernel threads */
364 #define CTL_MAXID 11 /* number of valid top-level ids */
366 #define CTL_NAMES { \
368 { "kern", CTLTYPE_NODE }, \
369 { "vm", CTLTYPE_NODE }, \
370 { "vfs", CTLTYPE_NODE }, \
371 { "net", CTLTYPE_NODE }, \
372 { "debug", CTLTYPE_NODE }, \
373 { "hw", CTLTYPE_NODE }, \
374 { "machdep", CTLTYPE_NODE }, \
375 { "user", CTLTYPE_NODE }, \
376 { "p1003_1b", CTLTYPE_NODE }, \
377 { "lwkt", CTLTYPE_NODE }, \
381 * CTL_KERN identifiers
383 #define KERN_OSTYPE 1 /* string: system version */
384 #define KERN_OSRELEASE 2 /* string: system release */
385 #define KERN_OSREV 3 /* int: system revision */
386 #define KERN_VERSION 4 /* string: compile time info */
387 #define KERN_MAXVNODES 5 /* int: max vnodes */
388 #define KERN_MAXPROC 6 /* int: max processes */
389 #define KERN_MAXFILES 7 /* int: max open files */
390 #define KERN_ARGMAX 8 /* int: max arguments to exec */
391 #define KERN_SECURELVL 9 /* int: system security level */
392 #define KERN_HOSTNAME 10 /* string: hostname */
393 #define KERN_HOSTID 11 /* int: host identifier */
394 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
395 #define KERN_VNODE 13 /* struct: vnode structures */
396 #define KERN_PROC 14 /* struct: process entries */
397 #define KERN_FILE 15 /* struct: file entries */
398 #define KERN_PROF 16 /* node: kernel profiling info */
399 #define KERN_POSIX1 17 /* int: POSIX.1 version */
400 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
401 #define KERN_JOB_CONTROL 19 /* int: is job control available */
402 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
403 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
404 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
405 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
406 #define KERN_OSRELDATE 24 /* int: OS release date */
407 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
408 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
409 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
410 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
411 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */
412 #define KERN_IPC 30 /* node: anything related to IPC */
413 #define KERN_DUMMY 31 /* unused */
414 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
415 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
416 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
417 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
418 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
419 #define KERN_MAXID 37 /* number of valid kern ids */
421 #define CTL_KERN_NAMES { \
423 { "ostype", CTLTYPE_STRING }, \
424 { "osrelease", CTLTYPE_STRING }, \
425 { "osrevision", CTLTYPE_INT }, \
426 { "version", CTLTYPE_STRING }, \
427 { "maxvnodes", CTLTYPE_INT }, \
428 { "maxproc", CTLTYPE_INT }, \
429 { "maxfiles", CTLTYPE_INT }, \
430 { "argmax", CTLTYPE_INT }, \
431 { "securelevel", CTLTYPE_INT }, \
432 { "hostname", CTLTYPE_STRING }, \
433 { "hostid", CTLTYPE_UINT }, \
434 { "clockrate", CTLTYPE_STRUCT }, \
435 { "vnode", CTLTYPE_STRUCT }, \
436 { "proc", CTLTYPE_STRUCT }, \
437 { "file", CTLTYPE_STRUCT }, \
438 { "profiling", CTLTYPE_NODE }, \
439 { "posix1version", CTLTYPE_INT }, \
440 { "ngroups", CTLTYPE_INT }, \
441 { "job_control", CTLTYPE_INT }, \
442 { "saved_ids", CTLTYPE_INT }, \
443 { "boottime", CTLTYPE_STRUCT }, \
444 { "nisdomainname", CTLTYPE_STRING }, \
445 { "update", CTLTYPE_INT }, \
446 { "osreldate", CTLTYPE_INT }, \
447 { "ntp_pll", CTLTYPE_NODE }, \
448 { "bootfile", CTLTYPE_STRING }, \
449 { "maxfilesperproc", CTLTYPE_INT }, \
450 { "maxprocperuid", CTLTYPE_INT }, \
451 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
452 { "ipc", CTLTYPE_NODE }, \
453 { "dummy", CTLTYPE_INT }, \
454 { "ps_strings", CTLTYPE_INT }, \
455 { "usrstack", CTLTYPE_INT }, \
456 { "logsigexit", CTLTYPE_INT }, \
457 { "iov_max", CTLTYPE_INT }, \
458 { "maxposixlocksperuid", CTLTYPE_INT }, \
462 * CTL_VFS identifiers
464 #define CTL_VFS_NAMES { \
465 { "vfsconf", CTLTYPE_STRUCT }, \
471 #define KERN_PROC_ALL 0 /* everything */
472 #define KERN_PROC_PID 1 /* by process id */
473 #define KERN_PROC_PGRP 2 /* by process group id */
474 #define KERN_PROC_SESSION 3 /* by session of pid */
475 #define KERN_PROC_TTY 4 /* by controlling tty */
476 #define KERN_PROC_UID 5 /* by effective uid */
477 #define KERN_PROC_RUID 6 /* by real uid */
478 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
479 #define KERN_PROC_CWD 8 /* get cwd */
480 #define KERN_PROC_PATHNAME 9 /* path to executable */
481 #define KERN_PROC_SIGTRAMP 10 /* addr[2]: sigtramp addr range */
483 #define KERN_PROC_FLAGMASK 0x10
484 #define KERN_PROC_FLAG_LWP 0x10
487 * KERN_IPC identifiers
489 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
490 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
491 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
492 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
493 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
494 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
495 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
496 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
497 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
502 #define HW_MACHINE 1 /* string: machine class */
503 #define HW_MODEL 2 /* string: specific machine model */
504 #define HW_NCPU 3 /* int: number of cpus */
505 #define HW_BYTEORDER 4 /* int: machine byte order */
506 #define HW_PHYSMEM 5 /* int: total memory */
507 #define HW_USERMEM 6 /* int: non-kernel memory */
508 #define HW_PAGESIZE 7 /* int: software page size */
509 #define HW_DISKNAMES 8 /* strings: disk drive names */
510 #define HW_DISKSTATS 9 /* struct: diskstats[] */
511 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
512 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
513 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */
514 #define HW_SENSORS 13 /* node: hardware sensors */
515 #define HW_MAXID 14 /* number of valid hw ids */
517 #define CTL_HW_NAMES { \
519 { "machine", CTLTYPE_STRING }, \
520 { "model", CTLTYPE_STRING }, \
521 { "ncpu", CTLTYPE_INT }, \
522 { "byteorder", CTLTYPE_INT }, \
523 { "physmem", CTLTYPE_ULONG }, \
524 { "usermem", CTLTYPE_UINT }, \
525 { "pagesize", CTLTYPE_INT }, \
526 { "disknames", CTLTYPE_STRUCT }, \
527 { "diskstats", CTLTYPE_STRUCT }, \
528 { "floatingpoint", CTLTYPE_INT }, \
529 { "arch", CTLTYPE_STRING }, \
530 { "platform", CTLTYPE_STRING }, \
531 { "sensors", CTLTYPE_NODE }, \
535 * CTL_USER definitions
537 #define USER_CS_PATH 1 /* string: _CS_PATH */
538 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
539 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
540 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
541 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
542 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
543 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
544 #define USER_LINE_MAX 8 /* int: LINE_MAX */
545 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
546 #define USER_POSIX2_VERSION 10 /* int: _POSIX2_VERSION */
547 #define USER_POSIX2_C_BIND 11 /* int: _POSIX2_C_BIND */
548 #define USER_POSIX2_C_DEV 12 /* int: _POSIX2_C_DEV */
549 #define USER_POSIX2_CHAR_TERM 13 /* int: _POSIX2_CHAR_TERM */
550 #define USER_POSIX2_FORT_DEV 14 /* int: _POSIX2_FORT_DEV */
551 #define USER_POSIX2_FORT_RUN 15 /* int: _POSIX2_FORT_RUN */
552 #define USER_POSIX2_LOCALEDEF 16 /* int: _POSIX2_LOCALEDEF */
553 #define USER_POSIX2_SW_DEV 17 /* int: _POSIX2_SW_DEV */
554 #define USER_POSIX2_UPE 18 /* int: _POSIX2_UPE */
555 #define USER_STREAM_MAX 19 /* int: _POSIX2_STREAM_MAX */
556 #define USER_TZNAME_MAX 20 /* int: _POSIX2_TZNAME_MAX */
557 #define USER_MAXID 21 /* number of valid user ids */
559 #define CTL_USER_NAMES { \
561 { "cs_path", CTLTYPE_STRING }, \
562 { "bc_base_max", CTLTYPE_INT }, \
563 { "bc_dim_max", CTLTYPE_INT }, \
564 { "bc_scale_max", CTLTYPE_INT }, \
565 { "bc_string_max", CTLTYPE_INT }, \
566 { "coll_weights_max", CTLTYPE_INT }, \
567 { "expr_nest_max", CTLTYPE_INT }, \
568 { "line_max", CTLTYPE_INT }, \
569 { "re_dup_max", CTLTYPE_INT }, \
570 { "posix2_version", CTLTYPE_INT }, \
571 { "posix2_c_bind", CTLTYPE_INT }, \
572 { "posix2_c_dev", CTLTYPE_INT }, \
573 { "posix2_char_term", CTLTYPE_INT }, \
574 { "posix2_fort_dev", CTLTYPE_INT }, \
575 { "posix2_fort_run", CTLTYPE_INT }, \
576 { "posix2_localedef", CTLTYPE_INT }, \
577 { "posix2_sw_dev", CTLTYPE_INT }, \
578 { "posix2_upe", CTLTYPE_INT }, \
579 { "stream_max", CTLTYPE_INT }, \
580 { "tzname_max", CTLTYPE_INT }, \
583 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
584 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
585 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
586 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
587 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
588 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
589 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
590 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
591 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
592 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
593 #define CTL_P1003_1B_FSYNC 11 /* boolean */
594 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
595 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
596 #define CTL_P1003_1B_TIMERS 14 /* boolean */
597 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
598 #define CTL_P1003_1B_AIO_MAX 16 /* int */
599 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
600 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
601 #define CTL_P1003_1B_UNUSED1 19 /* int */
602 #define CTL_P1003_1B_PAGESIZE 20 /* int */
603 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
604 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
605 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
606 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
607 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
609 #define CTL_P1003_1B_MAXID 26
611 #define CTL_P1003_1B_NAMES { \
613 { "asynchronous_io", CTLTYPE_INT }, \
614 { "mapped_files", CTLTYPE_INT }, \
615 { "memlock", CTLTYPE_INT }, \
616 { "memlock_range", CTLTYPE_INT }, \
617 { "memory_protection", CTLTYPE_INT }, \
618 { "message_passing", CTLTYPE_INT }, \
619 { "prioritized_io", CTLTYPE_INT }, \
620 { "priority_scheduling", CTLTYPE_INT }, \
621 { "realtime_signals", CTLTYPE_INT }, \
622 { "semaphores", CTLTYPE_INT }, \
623 { "fsync", CTLTYPE_INT }, \
624 { "shared_memory_objects", CTLTYPE_INT }, \
625 { "synchronized_io", CTLTYPE_INT }, \
626 { "timers", CTLTYPE_INT }, \
627 { "aio_listio_max", CTLTYPE_INT }, \
628 { "aio_max", CTLTYPE_INT }, \
629 { "aio_prio_delta_max", CTLTYPE_INT }, \
630 { "delaytimer_max", CTLTYPE_INT }, \
631 { "unused1", CTLTYPE_INT }, \
632 { "pagesize", CTLTYPE_INT }, \
633 { "rtsig_max", CTLTYPE_INT }, \
634 { "nsems_max", CTLTYPE_INT }, \
635 { "sem_value_max", CTLTYPE_INT }, \
636 { "sigqueue_max", CTLTYPE_INT }, \
637 { "timer_max", CTLTYPE_INT }, \
643 * Declare some common oids.
645 extern struct sysctl_oid_list sysctl__children;
647 SYSCTL_DECL(_sysctl);
652 SYSCTL_DECL(_debug_sizeof);
655 SYSCTL_DECL(_hw_bus);
656 SYSCTL_DECL(_machdep);
658 SYSCTL_DECL(_compat);
660 SYSCTL_DECL(_security);
663 * Common second-level oids.
665 SYSCTL_DECL(_kern_ipc);
667 extern char machine[];
668 extern char osrelease[];
669 extern char ostype[];
670 extern char kern_ident[];
672 /* Dynamic oid handling */
673 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
674 struct sysctl_oid_list *parent, int nbr, const char *name,
675 int kind, void *arg1, int arg2,
676 int (*handler) (SYSCTL_HANDLER_ARGS),
677 const char *fmt, const char *descr);
678 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
679 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
681 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
682 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
683 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
684 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
685 struct sysctl_oid *oidp);
686 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
687 struct sysctl_oid *oidp);
688 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
689 struct sysctl_oid *oidp);
691 int kernel_sysctl(int *name, u_int namelen, void *old,
692 size_t *oldlenp, void *new, size_t newlen,
694 int kernel_sysctlbyname(char *name,
695 void *old, size_t *oldlenp, void *new, size_t newlen,
697 int userland_sysctl(int *name, u_int namelen, void *old,
698 size_t *oldlenp, int inkernel, void *new, size_t newlen,
700 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
701 int *nindx, struct sysctl_req *req);
703 int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high);
704 void _sysctl_xlock(void);
705 void _sysctl_xunlock(void);
708 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
709 struct sysctl_req *);
713 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
715 #include <sys/cdefs.h>
718 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
719 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
720 int sysctlnametomib (const char *, int *, size_t *);
723 #endif /* _KERNEL && _KERNEL_VIRTUAL */
725 #endif /* !_SYS_SYSCTL_H_ */