2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Mike Karels at Berkeley Software Design, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
38 #ifndef _SYS_SYSCTL_H_
39 #define _SYS_SYSCTL_H_
41 #include <sys/queue.h>
45 * Definitions for sysctl call. The sysctl call uses a hierarchical name
46 * for objects that can be examined or modified. The name is expressed as
47 * a sequence of integers. Like a file path name, the meaning of each
48 * component depends on its place in the hierarchy. The top-level and kern
49 * identifiers are defined here, and other identifiers are defined in the
50 * respective subsystem header files.
53 #define CTL_MAXNAME 24 /* largest number of components supported */
56 * Each subsystem defined by sysctl defines a list of variables
57 * for that subsystem. Each name is either a node with further
58 * levels defined below it, or it is a leaf of some particular
59 * type given below. Each sysctl level defines a set of name/type
60 * pairs to be used by sysctl(8) in manipulating the subsystem.
63 char *ctl_name; /* subsystem name */
64 int ctl_type; /* type of name */
67 #define CTLTYPE 0xf /* mask for the type */
68 #define CTLTYPE_NODE 1 /* name is a node */
69 #define CTLTYPE_INT 2 /* name describes an integer */
70 #define CTLTYPE_STRING 3 /* name describes a string */
71 #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */
72 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
73 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
74 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
75 #define CTLTYPE_LONG 7 /* name describes a long */
76 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
77 #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */
78 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */
79 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */
80 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */
81 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */
82 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */
83 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-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_DORMANT 0x20000000 /* This sysctl is not active yet */
89 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
90 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
91 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
92 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
93 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
94 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
95 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */
96 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN)
97 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN)
98 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */
99 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */
100 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
101 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */
102 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */
103 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */
104 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */
105 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
108 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
110 * Secure when the securelevel is raised to at least N.
112 #define CTLSHIFT_SECURE 20
113 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
114 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
115 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
118 * USE THIS instead of a hardwired number from the categories below
119 * to get dynamically assigned sysctl entries using the linker-set
120 * technology. This is the way nearly all new sysctl variables should
122 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
124 #define OID_AUTO (-1)
127 * The starting number for dynamically-assigned entries. WARNING!
128 * ALL static sysctl entries should have numbers LESS than this!
130 #define CTL_AUTO_START 0x100
133 #include <sys/linker_set.h>
136 /* XXX allow overspecification of type in external kernel modules */
137 #define SYSCTL_CT_ASSERT_MASK CTLTYPE
139 #define SYSCTL_CT_ASSERT_MASK 0
142 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
143 intmax_t arg2, struct sysctl_req *req
145 /* definitions for sysctl_req 'lock' member */
146 #define REQ_UNWIRED 1
149 /* definitions for sysctl_req 'flags' member */
150 #if defined(__aarch64__) || defined(__amd64__) || defined(__powerpc64__) ||\
151 (defined(__mips__) && defined(__mips_n64))
152 #define SCTL_MASK32 1 /* 32 bit emulation */
156 * This describes the access space for a sysctl request. This is needed
157 * so that we can use the interface from the kernel or from user-space.
160 struct thread *td; /* used for access checking */
161 int lock; /* wiring state */
165 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
169 int (*newfunc)(struct sysctl_req *, void *, size_t);
174 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
177 * This describes one "oid" in the MIB tree. Potentially more nodes can
178 * be hidden behind it, expanded by the handler.
181 struct sysctl_oid_list oid_children;
182 struct sysctl_oid_list *oid_parent;
183 SLIST_ENTRY(sysctl_oid) oid_link;
188 const char *oid_name;
189 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
193 const char *oid_descr;
194 const char *oid_label;
197 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
198 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
199 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
201 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS);
202 int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
203 int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
204 int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
205 int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
206 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
207 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
208 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
209 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
210 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
211 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
212 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS);
214 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
215 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
217 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
218 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
219 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
222 * These functions are used to add/remove an oid from the mib.
224 void sysctl_register_oid(struct sysctl_oid *oidp);
225 void sysctl_register_disabled_oid(struct sysctl_oid *oidp);
226 void sysctl_enable_oid(struct sysctl_oid *oidp);
227 void sysctl_unregister_oid(struct sysctl_oid *oidp);
229 /* Declare a static oid to allow child oids to be added to it. */
230 #define SYSCTL_DECL(name) \
231 extern struct sysctl_oid sysctl__##name
233 /* Hide these in macros. */
234 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
235 #define SYSCTL_PARENT(oid_ptr) \
236 (((oid_ptr)->oid_parent != &sysctl__children) ? \
237 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
238 oid_children) : (struct sysctl_oid *)NULL)
239 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
241 /* === Structs and macros related to context handling. === */
243 /* All dynamically created sysctls can be tracked in a context list. */
244 struct sysctl_ctx_entry {
245 struct sysctl_oid *entry;
246 TAILQ_ENTRY(sysctl_ctx_entry) link;
249 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
251 #define SYSCTL_NODE_CHILDREN(parent, name) \
252 sysctl__##parent##_##name.oid_children
254 #ifndef NO_SYSCTL_DESCR
257 #define __DESCR(d) ""
260 /* This macro is only for internal use */
261 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
262 struct sysctl_oid id = { \
263 .oid_parent = (parent_child_head), \
264 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \
265 .oid_number = (nbr), \
266 .oid_kind = (kind), \
269 .oid_name = (name), \
270 .oid_handler = (handler), \
272 .oid_descr = __DESCR(descr), \
273 .oid_label = (label), \
275 DATA_SET(sysctl_set, id)
277 /* This constructs a static "raw" MIB oid. */
278 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
279 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \
280 handler, fmt, descr, NULL)
282 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
283 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
284 SYSCTL_CHILDREN(&sysctl__##parent), \
285 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
287 /* This constructs a global "raw" MIB oid. */
288 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
289 SYSCTL_OID_RAW(sysctl__##parent##_##name, \
290 SYSCTL_CHILDREN(&sysctl__##parent), \
291 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
293 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
294 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL)
296 /* This constructs a root node from which other nodes can hang. */
297 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
298 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
299 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
300 handler, "N", descr, NULL); \
301 CTASSERT(((access) & CTLTYPE) == 0 || \
302 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
304 /* This constructs a node from which other oids can hang. */
305 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
306 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL)
308 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \
309 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
310 NULL, 0, handler, "N", descr, label); \
311 CTASSERT(((access) & CTLTYPE) == 0 || \
312 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
314 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
315 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \
316 handler, descr, NULL)
318 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \
320 CTASSERT(((access) & CTLTYPE) == 0 || \
321 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
322 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
323 NULL, 0, handler, "N", __DESCR(descr), label); \
326 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
328 CTASSERT(((access) & CTLTYPE) == 0 || \
329 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
330 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
331 CTLTYPE_NODE|(access), \
332 NULL, 0, handler, "N", __DESCR(descr), NULL); \
335 /* Oid for a string. len can be 0 to indicate '\0' termination. */
336 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
337 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
338 arg, len, sysctl_handle_string, "A", descr); \
339 CTASSERT(((access) & CTLTYPE) == 0 || \
340 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
342 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
344 char *__arg = (arg); \
345 CTASSERT(((access) & CTLTYPE) == 0 || \
346 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
347 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
348 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \
352 /* Oid for a bool. If ptr is NULL, val is returned. */
353 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL)
354 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \
355 SYSCTL_OID(parent, nbr, name, \
356 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
357 ptr, val, sysctl_handle_bool, "CU", descr); \
358 CTASSERT(((access) & CTLTYPE) == 0 && \
359 sizeof(bool) == sizeof(*(ptr)))
361 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \
363 bool *__ptr = (ptr); \
364 CTASSERT(((access) & CTLTYPE) == 0); \
365 sysctl_add_oid(ctx, parent, nbr, name, \
366 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
367 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \
371 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
372 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
373 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
374 SYSCTL_OID(parent, nbr, name, \
375 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
376 ptr, val, sysctl_handle_8, "C", descr); \
377 CTASSERT((((access) & CTLTYPE) == 0 || \
378 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
379 sizeof(int8_t) == sizeof(*(ptr)))
381 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
383 int8_t *__ptr = (ptr); \
384 CTASSERT(((access) & CTLTYPE) == 0 || \
385 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
386 sysctl_add_oid(ctx, parent, nbr, name, \
387 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
388 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \
391 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
392 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
393 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
394 SYSCTL_OID(parent, nbr, name, \
395 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
396 ptr, val, sysctl_handle_8, "CU", descr); \
397 CTASSERT((((access) & CTLTYPE) == 0 || \
398 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
399 sizeof(uint8_t) == sizeof(*(ptr)))
401 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
403 uint8_t *__ptr = (ptr); \
404 CTASSERT(((access) & CTLTYPE) == 0 || \
405 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
406 sysctl_add_oid(ctx, parent, nbr, name, \
407 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
408 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \
411 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
412 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
413 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
414 SYSCTL_OID(parent, nbr, name, \
415 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
416 ptr, val, sysctl_handle_16, "S", descr); \
417 CTASSERT((((access) & CTLTYPE) == 0 || \
418 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
419 sizeof(int16_t) == sizeof(*(ptr)))
421 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
423 int16_t *__ptr = (ptr); \
424 CTASSERT(((access) & CTLTYPE) == 0 || \
425 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
426 sysctl_add_oid(ctx, parent, nbr, name, \
427 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
428 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \
431 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
432 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
433 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
434 SYSCTL_OID(parent, nbr, name, \
435 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
436 ptr, val, sysctl_handle_16, "SU", descr); \
437 CTASSERT((((access) & CTLTYPE) == 0 || \
438 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
439 sizeof(uint16_t) == sizeof(*(ptr)))
441 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
443 uint16_t *__ptr = (ptr); \
444 CTASSERT(((access) & CTLTYPE) == 0 || \
445 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
446 sysctl_add_oid(ctx, parent, nbr, name, \
447 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
448 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \
451 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
452 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
453 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
454 SYSCTL_OID(parent, nbr, name, \
455 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
456 ptr, val, sysctl_handle_32, "I", descr); \
457 CTASSERT((((access) & CTLTYPE) == 0 || \
458 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
459 sizeof(int32_t) == sizeof(*(ptr)))
461 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
463 int32_t *__ptr = (ptr); \
464 CTASSERT(((access) & CTLTYPE) == 0 || \
465 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
466 sysctl_add_oid(ctx, parent, nbr, name, \
467 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
468 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \
471 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
472 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
473 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
474 SYSCTL_OID(parent, nbr, name, \
475 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
476 ptr, val, sysctl_handle_32, "IU", descr); \
477 CTASSERT((((access) & CTLTYPE) == 0 || \
478 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
479 sizeof(uint32_t) == sizeof(*(ptr)))
481 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
483 uint32_t *__ptr = (ptr); \
484 CTASSERT(((access) & CTLTYPE) == 0 || \
485 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
486 sysctl_add_oid(ctx, parent, nbr, name, \
487 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
488 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \
491 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
492 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
493 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
494 SYSCTL_OID(parent, nbr, name, \
495 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
496 ptr, val, sysctl_handle_64, "Q", descr); \
497 CTASSERT((((access) & CTLTYPE) == 0 || \
498 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
499 sizeof(int64_t) == sizeof(*(ptr)))
501 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
503 int64_t *__ptr = (ptr); \
504 CTASSERT(((access) & CTLTYPE) == 0 || \
505 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
506 sysctl_add_oid(ctx, parent, nbr, name, \
507 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
508 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
511 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
512 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
513 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
514 SYSCTL_OID(parent, nbr, name, \
515 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
516 ptr, val, sysctl_handle_64, "QU", descr); \
517 CTASSERT((((access) & CTLTYPE) == 0 || \
518 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
519 sizeof(uint64_t) == sizeof(*(ptr)))
521 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
523 uint64_t *__ptr = (ptr); \
524 CTASSERT(((access) & CTLTYPE) == 0 || \
525 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
526 sysctl_add_oid(ctx, parent, nbr, name, \
527 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
528 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
531 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
532 #define SYSCTL_NULL_INT_PTR ((int *)NULL)
533 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
534 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL)
536 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \
537 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \
538 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
539 ptr, val, sysctl_handle_int, "I", descr, label); \
540 CTASSERT((((access) & CTLTYPE) == 0 || \
541 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
542 sizeof(int) == sizeof(*(ptr)))
544 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
546 int *__ptr = (ptr); \
547 CTASSERT(((access) & CTLTYPE) == 0 || \
548 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
549 sysctl_add_oid(ctx, parent, nbr, name, \
550 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
551 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \
554 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
555 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
556 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
557 SYSCTL_OID(parent, nbr, name, \
558 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
559 ptr, val, sysctl_handle_int, "IU", descr); \
560 CTASSERT((((access) & CTLTYPE) == 0 || \
561 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
562 sizeof(unsigned) == sizeof(*(ptr)))
564 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
566 unsigned *__ptr = (ptr); \
567 CTASSERT(((access) & CTLTYPE) == 0 || \
568 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
569 sysctl_add_oid(ctx, parent, nbr, name, \
570 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
571 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \
574 /* Oid for a long. The pointer must be non NULL. */
575 #define SYSCTL_NULL_LONG_PTR ((long *)NULL)
576 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
577 SYSCTL_OID(parent, nbr, name, \
578 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
579 ptr, val, sysctl_handle_long, "L", descr); \
580 CTASSERT((((access) & CTLTYPE) == 0 || \
581 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
582 sizeof(long) == sizeof(*(ptr)))
584 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
586 long *__ptr = (ptr); \
587 CTASSERT(((access) & CTLTYPE) == 0 || \
588 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
589 sysctl_add_oid(ctx, parent, nbr, name, \
590 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
591 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \
594 /* Oid for an unsigned long. The pointer must be non NULL. */
595 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
596 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
597 SYSCTL_OID(parent, nbr, name, \
598 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
599 ptr, val, sysctl_handle_long, "LU", descr); \
600 CTASSERT((((access) & CTLTYPE) == 0 || \
601 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
602 sizeof(unsigned long) == sizeof(*(ptr)))
604 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
606 unsigned long *__ptr = (ptr); \
607 CTASSERT(((access) & CTLTYPE) == 0 || \
608 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
609 sysctl_add_oid(ctx, parent, nbr, name, \
610 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
611 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \
614 /* Oid for a quad. The pointer must be non NULL. */
615 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
616 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
617 SYSCTL_OID(parent, nbr, name, \
618 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
619 ptr, val, sysctl_handle_64, "Q", descr); \
620 CTASSERT((((access) & CTLTYPE) == 0 || \
621 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
622 sizeof(int64_t) == sizeof(*(ptr)))
624 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
626 int64_t *__ptr = (ptr); \
627 CTASSERT(((access) & CTLTYPE) == 0 || \
628 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
629 sysctl_add_oid(ctx, parent, nbr, name, \
630 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
631 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
634 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
635 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
636 SYSCTL_OID(parent, nbr, name, \
637 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
638 ptr, val, sysctl_handle_64, "QU", descr); \
639 CTASSERT((((access) & CTLTYPE) == 0 || \
640 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
641 sizeof(uint64_t) == sizeof(*(ptr)))
643 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
645 uint64_t *__ptr = (ptr); \
646 CTASSERT(((access) & CTLTYPE) == 0 || \
647 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
648 sysctl_add_oid(ctx, parent, nbr, name, \
649 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
650 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
653 /* Oid for a CPU dependent variable */
654 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
656 struct sysctl_oid *__ret; \
657 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
658 sizeof(unsigned) == sizeof(*(ptr))) && \
659 ((access) & CTLTYPE) == 0); \
660 if (sizeof(uint64_t) == sizeof(*(ptr))) { \
661 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
662 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
663 (ptr), 0, sysctl_handle_64, "QU", \
664 __DESCR(descr), NULL); \
666 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
667 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
668 (ptr), 0, sysctl_handle_int, "IU", \
669 __DESCR(descr), NULL); \
674 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
675 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
676 SYSCTL_OID(parent, nbr, name, \
677 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
678 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
679 CTASSERT((((access) & CTLTYPE) == 0 || \
680 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
681 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
682 sizeof(uint64_t) == sizeof(**(ptr)))
684 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
686 counter_u64_t *__ptr = (ptr); \
687 CTASSERT(((access) & CTLTYPE) == 0 || \
688 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
689 sysctl_add_oid(ctx, parent, nbr, name, \
690 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
691 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \
695 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */
696 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \
697 SYSCTL_OID(parent, nbr, name, \
698 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
699 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \
700 CTASSERT((((access) & CTLTYPE) == 0 || \
701 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \
702 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
703 sizeof(uint64_t) == sizeof(**(ptr)))
705 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \
708 counter_u64_t *__ptr = (ptr); \
709 CTASSERT(((access) & CTLTYPE) == 0 || \
710 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
711 sysctl_add_oid(ctx, parent, nbr, name, \
712 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
713 __ptr, len, sysctl_handle_counter_u64_array, "S", \
714 __DESCR(descr), NULL); \
717 /* Oid for an opaque object. Specified by a pointer and a length. */
718 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
719 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
720 ptr, len, sysctl_handle_opaque, fmt, descr); \
721 CTASSERT(((access) & CTLTYPE) == 0 || \
722 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
724 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
726 CTASSERT(((access) & CTLTYPE) == 0 || \
727 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
728 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
729 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \
732 /* Oid for a struct. Specified by a pointer and a type. */
733 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
734 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
735 ptr, sizeof(struct type), sysctl_handle_opaque, \
736 "S," #type, descr); \
737 CTASSERT(((access) & CTLTYPE) == 0 || \
738 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
740 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
742 CTASSERT(((access) & CTLTYPE) == 0 || \
743 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
744 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
745 (ptr), sizeof(struct type), \
746 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \
749 /* Oid for a procedure. Specified by a pointer and an arg. */
750 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
751 SYSCTL_OID(parent, nbr, name, (access), \
752 ptr, arg, handler, fmt, descr); \
753 CTASSERT(((access) & CTLTYPE) != 0)
755 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
757 CTASSERT(((access) & CTLTYPE) != 0); \
758 sysctl_add_oid(ctx, parent, nbr, name, (access), \
759 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \
762 /* Oid to handle limits on uma(9) zone specified by pointer. */
763 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
764 SYSCTL_OID(parent, nbr, name, \
765 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
766 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
767 CTASSERT(((access) & CTLTYPE) == 0 || \
768 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
770 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
772 uma_zone_t __ptr = (ptr); \
773 CTASSERT(((access) & CTLTYPE) == 0 || \
774 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
775 sysctl_add_oid(ctx, parent, nbr, name, \
776 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
777 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \
781 /* Oid to obtain current use of uma(9) zone specified by pointer. */
782 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
783 SYSCTL_OID(parent, nbr, name, \
784 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
785 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
786 CTASSERT(((access) & CTLTYPE) == 0 || \
787 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
789 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
791 uma_zone_t __ptr = (ptr); \
792 CTASSERT(((access) & CTLTYPE) == 0 || \
793 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
794 sysctl_add_oid(ctx, parent, nbr, name, \
795 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
796 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \
801 * A macro to generate a read-only sysctl to indicate the presence of optional
804 #define FEATURE(name, desc) \
805 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \
806 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature")
811 * Top-level identifiers
813 #define CTL_UNSPEC 0 /* unused */
814 #define CTL_KERN 1 /* "high kernel": proc, limits */
815 #define CTL_VM 2 /* virtual memory */
816 #define CTL_VFS 3 /* filesystem, mount type is next */
817 #define CTL_NET 4 /* network, see socket.h */
818 #define CTL_DEBUG 5 /* debugging parameters */
819 #define CTL_HW 6 /* generic cpu/io */
820 #define CTL_MACHDEP 7 /* machine dependent */
821 #define CTL_USER 8 /* user-level */
822 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
825 * CTL_KERN identifiers
827 #define KERN_OSTYPE 1 /* string: system version */
828 #define KERN_OSRELEASE 2 /* string: system release */
829 #define KERN_OSREV 3 /* int: system revision */
830 #define KERN_VERSION 4 /* string: compile time info */
831 #define KERN_MAXVNODES 5 /* int: max vnodes */
832 #define KERN_MAXPROC 6 /* int: max processes */
833 #define KERN_MAXFILES 7 /* int: max open files */
834 #define KERN_ARGMAX 8 /* int: max arguments to exec */
835 #define KERN_SECURELVL 9 /* int: system security level */
836 #define KERN_HOSTNAME 10 /* string: hostname */
837 #define KERN_HOSTID 11 /* int: host identifier */
838 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
839 #define KERN_VNODE 13 /* struct: vnode structures */
840 #define KERN_PROC 14 /* struct: process entries */
841 #define KERN_FILE 15 /* struct: file entries */
842 #define KERN_PROF 16 /* node: kernel profiling info */
843 #define KERN_POSIX1 17 /* int: POSIX.1 version */
844 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
845 #define KERN_JOB_CONTROL 19 /* int: is job control available */
846 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
847 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
848 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
849 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
850 #define KERN_OSRELDATE 24 /* int: kernel release date */
851 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
852 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
853 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
854 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
855 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
856 #define KERN_IPC 30 /* node: anything related to IPC */
857 #define KERN_DUMMY 31 /* unused */
858 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
859 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
860 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
861 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
862 #define KERN_HOSTUUID 36 /* string: host UUID identifier */
863 #define KERN_ARND 37 /* int: from arc4rand() */
864 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */
868 #define KERN_PROC_ALL 0 /* everything */
869 #define KERN_PROC_PID 1 /* by process id */
870 #define KERN_PROC_PGRP 2 /* by process group id */
871 #define KERN_PROC_SESSION 3 /* by session of pid */
872 #define KERN_PROC_TTY 4 /* by controlling tty */
873 #define KERN_PROC_UID 5 /* by effective uid */
874 #define KERN_PROC_RUID 6 /* by real uid */
875 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
876 #define KERN_PROC_PROC 8 /* only return procs */
877 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */
878 #define KERN_PROC_RGID 10 /* by real group id */
879 #define KERN_PROC_GID 11 /* by effective group id */
880 #define KERN_PROC_PATHNAME 12 /* path to executable */
881 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
882 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
883 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
884 #define KERN_PROC_INC_THREAD 0x10 /*
885 * modifier for pid, pgrp, tty,
886 * uid, ruid, gid, rgid and proc
887 * This effectively uses 16-31
889 #define KERN_PROC_VMMAP 32 /* VM map entries for process */
890 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */
891 #define KERN_PROC_GROUPS 34 /* process groups */
892 #define KERN_PROC_ENV 35 /* get environment */
893 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
894 #define KERN_PROC_RLIMIT 37 /* process resource limits */
895 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
896 #define KERN_PROC_UMASK 39 /* process umask */
897 #define KERN_PROC_OSREL 40 /* osreldate for process binary */
898 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
899 #define KERN_PROC_CWD 42 /* process current working directory */
900 #define KERN_PROC_NFDS 43 /* number of open file descriptors */
903 * KERN_IPC identifiers
905 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
906 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
907 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
908 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
909 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
910 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
911 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
916 #define HW_MACHINE 1 /* string: machine class */
917 #define HW_MODEL 2 /* string: specific machine model */
918 #define HW_NCPU 3 /* int: number of cpus */
919 #define HW_BYTEORDER 4 /* int: machine byte order */
920 #define HW_PHYSMEM 5 /* int: total memory */
921 #define HW_USERMEM 6 /* int: non-kernel memory */
922 #define HW_PAGESIZE 7 /* int: software page size */
923 #define HW_DISKNAMES 8 /* strings: disk drive names */
924 #define HW_DISKSTATS 9 /* struct: diskstats[] */
925 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
926 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
927 #define HW_REALMEM 12 /* int: 'real' memory */
930 * CTL_USER definitions
932 #define USER_CS_PATH 1 /* string: _CS_PATH */
933 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
934 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
935 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
936 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
937 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
938 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
939 #define USER_LINE_MAX 8 /* int: LINE_MAX */
940 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
941 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
942 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
943 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
944 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
945 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
946 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
947 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
948 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
949 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
950 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
951 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
953 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
954 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
955 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
956 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
957 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
958 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
959 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
960 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
961 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
962 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
963 #define CTL_P1003_1B_FSYNC 11 /* boolean */
964 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
965 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
966 #define CTL_P1003_1B_TIMERS 14 /* boolean */
967 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
968 #define CTL_P1003_1B_AIO_MAX 16 /* int */
969 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
970 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
971 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
972 #define CTL_P1003_1B_PAGESIZE 20 /* int */
973 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
974 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
975 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
976 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
977 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
979 #define CTL_P1003_1B_MAXID 26
984 * Declare some common oids.
986 extern struct sysctl_oid_list sysctl__children;
988 SYSCTL_DECL(_kern_features);
989 SYSCTL_DECL(_kern_ipc);
990 SYSCTL_DECL(_kern_proc);
991 SYSCTL_DECL(_kern_sched);
992 SYSCTL_DECL(_kern_sched_stats);
993 SYSCTL_DECL(_sysctl);
995 SYSCTL_DECL(_vm_stats);
996 SYSCTL_DECL(_vm_stats_misc);
1000 SYSCTL_DECL(_debug_sizeof);
1003 SYSCTL_DECL(_hw_bus);
1004 SYSCTL_DECL(_hw_bus_devices);
1005 SYSCTL_DECL(_hw_bus_info);
1006 SYSCTL_DECL(_machdep);
1008 SYSCTL_DECL(_compat);
1009 SYSCTL_DECL(_regression);
1010 SYSCTL_DECL(_security);
1011 SYSCTL_DECL(_security_bsd);
1012 #ifdef EXT_RESOURCES
1013 SYSCTL_DECL(_clock);
1016 extern char machine[];
1017 extern char osrelease[];
1018 extern char ostype[];
1019 extern char kern_ident[];
1021 /* Dynamic oid handling */
1022 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
1023 struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
1024 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
1025 const char *fmt, const char *descr, const char *label);
1026 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
1028 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
1029 int sysctl_move_oid(struct sysctl_oid *oidp,
1030 struct sysctl_oid_list *parent);
1031 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
1032 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
1033 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
1034 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
1035 struct sysctl_oid *oidp);
1036 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
1037 struct sysctl_oid *oidp);
1038 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
1039 struct sysctl_oid *oidp);
1041 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1042 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1044 int kernel_sysctlbyname(struct thread *td, char *name, void *old,
1045 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1047 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1048 size_t *oldlenp, int inkernel, void *new, size_t newlen,
1049 size_t *retval, int flags);
1050 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
1051 int *nindx, struct sysctl_req *req);
1052 void sysctl_wlock(void);
1053 void sysctl_wunlock(void);
1054 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
1057 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
1058 struct sysctl_req *);
1059 #else /* !_KERNEL */
1060 #include <sys/cdefs.h>
1063 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1064 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
1065 int sysctlnametomib(const char *, int *, size_t *);
1067 #endif /* _KERNEL */
1069 #endif /* !_SYS_SYSCTL_H_ */