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>
46 #ifndef _SYS__POSIX_H_
47 #include <sys/_posix.h>
50 #include <sys/queue.h>
54 * Definitions for sysctl call. The sysctl call uses a hierarchical name
55 * for objects that can be examined or modified. The name is expressed as
56 * a sequence of integers. Like a file path name, the meaning of each
57 * component depends on its place in the hierarchy. The top-level and kern
58 * identifiers are defined here, and other identifiers are defined in the
59 * respective subsystem header files.
62 #define CTL_MAXNAME 12 /* largest number of components supported */
65 * Each subsystem defined by sysctl defines a list of variables
66 * for that subsystem. Each name is either a node with further
67 * levels defined below it, or it is a leaf of some particular
68 * type given below. Each sysctl level defines a set of name/type
69 * pairs to be used by sysctl(1) in manipulating the subsystem.
72 char *ctl_name; /* subsystem name */
73 int ctl_type; /* type of name */
76 #define CTLTYPE 0xf /* Mask for the type */
77 #define CTLTYPE_NODE 1 /* name is a node */
78 #define CTLTYPE_INT 2 /* name describes an integer */
79 #define CTLTYPE_STRING 3 /* name describes a string */
80 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
81 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
82 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
83 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
84 #define CTLTYPE_LONG 7 /* name describes a long */
85 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
86 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */
88 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
89 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
90 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
91 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
92 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
93 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
94 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
95 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
96 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
97 #define CTLFLAG_TUN 0x00080000 /* Tunable variable */
98 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN)
99 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN)
100 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */
101 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */
102 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
103 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */
104 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */
105 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */
106 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
109 * USE THIS instead of a hardwired number from the categories below
110 * to get dynamically assigned sysctl entries using the linker-set
111 * technology. This is the way nearly all new sysctl variables should
113 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
115 #define OID_AUTO (-1)
119 #include <sys/kernel.h> /* for DATA_SET */
121 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
122 struct sysctl_req *req
125 * This describes the access space for a sysctl request. This is needed
126 * so that we can use the interface from the kernel or from user-space.
129 struct thread *td; /* used for access checking */
130 int lock; /* wiring state */
134 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
138 int (*newfunc)(struct sysctl_req *, void *, size_t);
143 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
146 * This describes one "oid" in the MIB tree. Potentially more nodes can
147 * be hidden behind it, expanded by the handler.
150 struct sysctl_oid_list *oid_parent;
151 SLIST_ENTRY(sysctl_oid) oid_link;
156 const char *oid_name;
157 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
161 const char *oid_descr;
164 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
165 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
167 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
168 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
169 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
170 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
171 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
172 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
175 * These functions are used to add/remove an oid from the mib.
177 void sysctl_register_oid(struct sysctl_oid *oidp);
178 void sysctl_unregister_oid(struct sysctl_oid *oidp);
180 /* Declare a static oid to allow child oids to be added to it. */
181 #define SYSCTL_DECL(name) \
182 extern struct sysctl_oid_list sysctl_##name##_children
184 /* Hide these in macros */
185 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \
186 (oid_ptr)->oid_arg1 = (children); \
188 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
190 #define SYSCTL_STATIC_CHILDREN(oid_name) \
191 (&sysctl_##oid_name##_children)
193 /* === Structs and macros related to context handling === */
195 /* All dynamically created sysctls can be tracked in a context list. */
196 struct sysctl_ctx_entry {
197 struct sysctl_oid *entry;
198 TAILQ_ENTRY(sysctl_ctx_entry) link;
201 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
203 #define SYSCTL_NODE_CHILDREN(parent, name) \
204 sysctl_##parent##_##name##_children
206 #define SYSCTL_ASSERT_TYPE(type, ptr, parent, name)
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_ASSERT_TYPE(INT, ptr, parent, name); \
257 SYSCTL_OID(parent, nbr, name, \
258 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
259 ptr, val, sysctl_handle_int, "I", descr)
261 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
262 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|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, CTLTYPE_QUAD|access, \
268 ptr, val, sysctl_handle_quad, "Q", descr)
270 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
271 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|access, \
272 ptr, val, sysctl_handle_quad, "Q", descr)
274 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */
275 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
276 SYSCTL_OID(parent, nbr, name, CTLTYPE_UQUAD|access, \
277 ptr, val, sysctl_handle_quad, "QU", descr)
279 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
280 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UQUAD|access, \
281 ptr, val, sysctl_handle_quad, "QU", descr)
283 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
284 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
285 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \
286 ptr, val, sysctl_handle_int, "IU", descr)
288 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
289 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \
290 ptr, val, sysctl_handle_int, "IU", descr)
292 /* Oid for a long. The pointer must be non NULL. */
293 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
294 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \
295 ptr, val, sysctl_handle_long, "L", descr)
297 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
298 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \
299 ptr, 0, sysctl_handle_long, "L", descr)
301 /* Oid for a long. The pointer must be non NULL. */
302 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
303 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \
304 ptr, val, sysctl_handle_long, "LU", descr)
306 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
307 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \
308 ptr, 0, sysctl_handle_long, "LU", descr)
310 /* Oid for an opaque object. Specified by a pointer and a length. */
311 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
312 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
313 ptr, len, sysctl_handle_opaque, fmt, descr)
315 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\
316 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
317 ptr, len, sysctl_handle_opaque, fmt, descr)
319 /* Oid for a struct. Specified by a pointer and a type. */
320 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
321 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
322 ptr, sizeof(struct type), sysctl_handle_opaque, \
325 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
326 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
327 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
329 /* Oid for a procedure. Specified by a pointer and an arg. */
330 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
331 SYSCTL_OID(parent, nbr, name, access, \
332 ptr, arg, handler, fmt, descr)
334 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
335 sysctl_add_oid(ctx, parent, nbr, name, access, \
336 ptr, arg, handler, fmt, descr)
341 * Top-level identifiers
343 #define CTL_UNSPEC 0 /* unused */
344 #define CTL_KERN 1 /* "high kernel": proc, limits */
345 #define CTL_VM 2 /* virtual memory */
346 #define CTL_VFS 3 /* file system, mount type is next */
347 #define CTL_NET 4 /* network, see socket.h */
348 #define CTL_DEBUG 5 /* debugging parameters */
349 #define CTL_HW 6 /* generic cpu/io */
350 #define CTL_MACHDEP 7 /* machine dependent */
351 #define CTL_USER 8 /* user-level */
352 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
353 #define CTL_LWKT 10 /* light weight kernel threads */
354 #define CTL_MAXID 11 /* number of valid top-level ids */
356 #define CTL_NAMES { \
358 { "kern", CTLTYPE_NODE }, \
359 { "vm", CTLTYPE_NODE }, \
360 { "vfs", CTLTYPE_NODE }, \
361 { "net", CTLTYPE_NODE }, \
362 { "debug", CTLTYPE_NODE }, \
363 { "hw", CTLTYPE_NODE }, \
364 { "machdep", CTLTYPE_NODE }, \
365 { "user", CTLTYPE_NODE }, \
366 { "p1003_1b", CTLTYPE_NODE }, \
367 { "lwkt", CTLTYPE_NODE }, \
371 * CTL_KERN identifiers
373 #define KERN_OSTYPE 1 /* string: system version */
374 #define KERN_OSRELEASE 2 /* string: system release */
375 #define KERN_OSREV 3 /* int: system revision */
376 #define KERN_VERSION 4 /* string: compile time info */
377 #define KERN_MAXVNODES 5 /* int: max vnodes */
378 #define KERN_MAXPROC 6 /* int: max processes */
379 #define KERN_MAXFILES 7 /* int: max open files */
380 #define KERN_ARGMAX 8 /* int: max arguments to exec */
381 #define KERN_SECURELVL 9 /* int: system security level */
382 #define KERN_HOSTNAME 10 /* string: hostname */
383 #define KERN_HOSTID 11 /* int: host identifier */
384 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
385 #define KERN_VNODE 13 /* struct: vnode structures */
386 #define KERN_PROC 14 /* struct: process entries */
387 #define KERN_FILE 15 /* struct: file entries */
388 #define KERN_PROF 16 /* node: kernel profiling info */
389 #define KERN_POSIX1 17 /* int: POSIX.1 version */
390 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
391 #define KERN_JOB_CONTROL 19 /* int: is job control available */
392 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
393 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
394 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
395 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
396 #define KERN_OSRELDATE 24 /* int: OS release date */
397 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
398 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
399 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
400 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
401 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */
402 #define KERN_IPC 30 /* node: anything related to IPC */
403 #define KERN_DUMMY 31 /* unused */
404 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
405 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
406 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
407 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
408 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
409 #define KERN_MAXID 37 /* number of valid kern ids */
411 #define CTL_KERN_NAMES { \
413 { "ostype", CTLTYPE_STRING }, \
414 { "osrelease", CTLTYPE_STRING }, \
415 { "osrevision", CTLTYPE_INT }, \
416 { "version", CTLTYPE_STRING }, \
417 { "maxvnodes", CTLTYPE_INT }, \
418 { "maxproc", CTLTYPE_INT }, \
419 { "maxfiles", CTLTYPE_INT }, \
420 { "argmax", CTLTYPE_INT }, \
421 { "securelevel", CTLTYPE_INT }, \
422 { "hostname", CTLTYPE_STRING }, \
423 { "hostid", CTLTYPE_UINT }, \
424 { "clockrate", CTLTYPE_STRUCT }, \
425 { "vnode", CTLTYPE_STRUCT }, \
426 { "proc", CTLTYPE_STRUCT }, \
427 { "file", CTLTYPE_STRUCT }, \
428 { "profiling", CTLTYPE_NODE }, \
429 { "posix1version", CTLTYPE_INT }, \
430 { "ngroups", CTLTYPE_INT }, \
431 { "job_control", CTLTYPE_INT }, \
432 { "saved_ids", CTLTYPE_INT }, \
433 { "boottime", CTLTYPE_STRUCT }, \
434 { "nisdomainname", CTLTYPE_STRING }, \
435 { "update", CTLTYPE_INT }, \
436 { "osreldate", CTLTYPE_INT }, \
437 { "ntp_pll", CTLTYPE_NODE }, \
438 { "bootfile", CTLTYPE_STRING }, \
439 { "maxfilesperproc", CTLTYPE_INT }, \
440 { "maxprocperuid", CTLTYPE_INT }, \
441 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
442 { "ipc", CTLTYPE_NODE }, \
443 { "dummy", CTLTYPE_INT }, \
444 { "ps_strings", CTLTYPE_INT }, \
445 { "usrstack", CTLTYPE_INT }, \
446 { "logsigexit", CTLTYPE_INT }, \
447 { "iov_max", CTLTYPE_INT }, \
448 { "maxposixlocksperuid", CTLTYPE_INT }, \
452 * CTL_VFS identifiers
454 #define CTL_VFS_NAMES { \
455 { "vfsconf", CTLTYPE_STRUCT }, \
461 #define KERN_PROC_ALL 0 /* everything */
462 #define KERN_PROC_PID 1 /* by process id */
463 #define KERN_PROC_PGRP 2 /* by process group id */
464 #define KERN_PROC_SESSION 3 /* by session of pid */
465 #define KERN_PROC_TTY 4 /* by controlling tty */
466 #define KERN_PROC_UID 5 /* by effective uid */
467 #define KERN_PROC_RUID 6 /* by real uid */
468 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
469 #define KERN_PROC_CWD 8 /* get cwd */
470 #define KERN_PROC_PATHNAME 9 /* path to executable */
473 #define KERN_PROC_FLAGMASK 0x10
474 #define KERN_PROC_FLAG_LWP 0x10
477 * KERN_IPC identifiers
479 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
480 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
481 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
482 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
483 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
484 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
485 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
486 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
487 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
492 #define HW_MACHINE 1 /* string: machine class */
493 #define HW_MODEL 2 /* string: specific machine model */
494 #define HW_NCPU 3 /* int: number of cpus */
495 #define HW_BYTEORDER 4 /* int: machine byte order */
496 #define HW_PHYSMEM 5 /* int: total memory */
497 #define HW_USERMEM 6 /* int: non-kernel memory */
498 #define HW_PAGESIZE 7 /* int: software page size */
499 #define HW_DISKNAMES 8 /* strings: disk drive names */
500 #define HW_DISKSTATS 9 /* struct: diskstats[] */
501 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
502 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
503 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */
504 #define HW_SENSORS 13 /* node: hardware sensors */
505 #define HW_MAXID 14 /* number of valid hw ids */
507 #define CTL_HW_NAMES { \
509 { "machine", CTLTYPE_STRING }, \
510 { "model", CTLTYPE_STRING }, \
511 { "ncpu", CTLTYPE_INT }, \
512 { "byteorder", CTLTYPE_INT }, \
513 { "physmem", CTLTYPE_ULONG }, \
514 { "usermem", CTLTYPE_UINT }, \
515 { "pagesize", CTLTYPE_INT }, \
516 { "disknames", CTLTYPE_STRUCT }, \
517 { "diskstats", CTLTYPE_STRUCT }, \
518 { "floatingpoint", CTLTYPE_INT }, \
519 { "arch", CTLTYPE_STRING }, \
520 { "platform", CTLTYPE_STRING }, \
521 { "sensors", CTLTYPE_NODE }, \
525 * CTL_USER definitions
527 #define USER_CS_PATH 1 /* string: _CS_PATH */
528 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
529 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
530 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
531 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
532 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
533 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
534 #define USER_LINE_MAX 8 /* int: LINE_MAX */
535 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
536 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
537 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
538 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
539 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
540 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
541 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
542 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
543 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
544 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
545 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
546 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
547 #define USER_MAXID 21 /* number of valid user ids */
549 #define CTL_USER_NAMES { \
551 { "cs_path", CTLTYPE_STRING }, \
552 { "bc_base_max", CTLTYPE_INT }, \
553 { "bc_dim_max", CTLTYPE_INT }, \
554 { "bc_scale_max", CTLTYPE_INT }, \
555 { "bc_string_max", CTLTYPE_INT }, \
556 { "coll_weights_max", CTLTYPE_INT }, \
557 { "expr_nest_max", CTLTYPE_INT }, \
558 { "line_max", CTLTYPE_INT }, \
559 { "re_dup_max", CTLTYPE_INT }, \
560 { "posix2_version", CTLTYPE_INT }, \
561 { "posix2_c_bind", CTLTYPE_INT }, \
562 { "posix2_c_dev", CTLTYPE_INT }, \
563 { "posix2_char_term", CTLTYPE_INT }, \
564 { "posix2_fort_dev", CTLTYPE_INT }, \
565 { "posix2_fort_run", CTLTYPE_INT }, \
566 { "posix2_localedef", CTLTYPE_INT }, \
567 { "posix2_sw_dev", CTLTYPE_INT }, \
568 { "posix2_upe", CTLTYPE_INT }, \
569 { "stream_max", CTLTYPE_INT }, \
570 { "tzname_max", CTLTYPE_INT }, \
573 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
574 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
575 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
576 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
577 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
578 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
579 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
580 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
581 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
582 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
583 #define CTL_P1003_1B_FSYNC 11 /* boolean */
584 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
585 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
586 #define CTL_P1003_1B_TIMERS 14 /* boolean */
587 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
588 #define CTL_P1003_1B_AIO_MAX 16 /* int */
589 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
590 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
591 #define CTL_P1003_1B_UNUSED1 19 /* int */
592 #define CTL_P1003_1B_PAGESIZE 20 /* int */
593 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
594 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
595 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
596 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
597 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
599 #define CTL_P1003_1B_MAXID 26
601 #define CTL_P1003_1B_NAMES { \
603 { "asynchronous_io", CTLTYPE_INT }, \
604 { "mapped_files", CTLTYPE_INT }, \
605 { "memlock", CTLTYPE_INT }, \
606 { "memlock_range", CTLTYPE_INT }, \
607 { "memory_protection", CTLTYPE_INT }, \
608 { "message_passing", CTLTYPE_INT }, \
609 { "prioritized_io", CTLTYPE_INT }, \
610 { "priority_scheduling", CTLTYPE_INT }, \
611 { "realtime_signals", CTLTYPE_INT }, \
612 { "semaphores", CTLTYPE_INT }, \
613 { "fsync", CTLTYPE_INT }, \
614 { "shared_memory_objects", CTLTYPE_INT }, \
615 { "synchronized_io", CTLTYPE_INT }, \
616 { "timers", CTLTYPE_INT }, \
617 { "aio_listio_max", CTLTYPE_INT }, \
618 { "aio_max", CTLTYPE_INT }, \
619 { "aio_prio_delta_max", CTLTYPE_INT }, \
620 { "delaytimer_max", CTLTYPE_INT }, \
621 { "unused1", CTLTYPE_INT }, \
622 { "pagesize", CTLTYPE_INT }, \
623 { "rtsig_max", CTLTYPE_INT }, \
624 { "nsems_max", CTLTYPE_INT }, \
625 { "sem_value_max", CTLTYPE_INT }, \
626 { "sigqueue_max", CTLTYPE_INT }, \
627 { "timer_max", CTLTYPE_INT }, \
633 * Declare some common oids.
635 extern struct sysctl_oid_list sysctl__children;
637 SYSCTL_DECL(_sysctl);
642 SYSCTL_DECL(_debug_sizeof);
644 SYSCTL_DECL(_hw_bus);
645 SYSCTL_DECL(_machdep);
647 SYSCTL_DECL(_compat);
649 SYSCTL_DECL(_security);
650 SYSCTL_DECL(_dsched);
653 * Common second-level oids.
655 SYSCTL_DECL(_kern_ipc);
657 extern char machine[];
658 extern char osrelease[];
659 extern char ostype[];
660 extern char kern_ident[];
662 /* Dynamic oid handling */
663 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
664 struct sysctl_oid_list *parent, int nbr, const char *name,
665 int kind, void *arg1, int arg2,
666 int (*handler) (SYSCTL_HANDLER_ARGS),
667 const char *fmt, const char *descr);
668 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
669 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
671 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
672 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
673 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
674 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
675 struct sysctl_oid *oidp);
676 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
677 struct sysctl_oid *oidp);
678 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
679 struct sysctl_oid *oidp);
681 int kernel_sysctl(int *name, u_int namelen, void *old,
682 size_t *oldlenp, void *new, size_t newlen,
684 int kernel_sysctlbyname(char *name,
685 void *old, size_t *oldlenp, void *new, size_t newlen,
687 int userland_sysctl(int *name, u_int namelen, void *old,
688 size_t *oldlenp, int inkernel, void *new, size_t newlen,
690 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
691 int *nindx, struct sysctl_req *req);
693 int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high);
696 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
697 struct sysctl_req *);
701 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
703 #include <sys/cdefs.h>
706 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
707 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
708 int sysctlnametomib (const char *, int *, size_t *);
711 #endif /* _KERNEL && _KERNEL_VIRTUAL */
713 #endif /* !_SYS_SYSCTL_H_ */