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_
42 #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 24 /* 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(8) 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_S64 4 /* name describes a signed 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_U64 9 /* name describes an unsigned 64-bit number */
80 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */
81 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */
82 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */
83 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */
84 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */
85 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */
87 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
88 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
89 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
90 #define CTLFLAG_DORMANT 0x20000000 /* This sysctl is not active yet */
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 /* Default value is loaded from getenv() */
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_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */
107 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
109 * This is transient flag to be used until all sysctl handlers are converted
111 * One, and only one of CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT is required
112 * for SYSCTL_PROC and SYSCTL_NODE.
114 #define CTLFLAG_NEEDGIANT 0x00000800 /* Handler require Giant */
117 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
119 * Secure when the securelevel is raised to at least N.
121 #define CTLSHIFT_SECURE 20
122 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
123 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
124 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
127 * USE THIS instead of a hardwired number from the categories below
128 * to get dynamically assigned sysctl entries using the linker-set
129 * technology. This is the way nearly all new sysctl variables should
131 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
133 #define OID_AUTO (-1)
136 * The starting number for dynamically-assigned entries. WARNING!
137 * ALL static sysctl entries should have numbers LESS than this!
139 #define CTL_AUTO_START 0x100
142 #include <sys/linker_set.h>
145 /* XXX allow overspecification of type in external kernel modules */
146 #define SYSCTL_CT_ASSERT_MASK CTLTYPE
148 #define SYSCTL_CT_ASSERT_MASK 0
151 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
152 intmax_t arg2, struct sysctl_req *req
154 /* definitions for sysctl_req 'lock' member */
155 #define REQ_UNWIRED 1
158 /* definitions for sysctl_req 'flags' member */
159 #if defined(__aarch64__) || defined(__amd64__) || defined(__powerpc64__) ||\
160 (defined(__mips__) && defined(__mips_n64))
161 #define SCTL_MASK32 1 /* 32 bit emulation */
165 * This describes the access space for a sysctl request. This is needed
166 * so that we can use the interface from the kernel or from user-space.
169 struct thread *td; /* used for access checking */
170 int lock; /* wiring state */
174 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
178 int (*newfunc)(struct sysctl_req *, void *, size_t);
183 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
186 * This describes one "oid" in the MIB tree. Potentially more nodes can
187 * be hidden behind it, expanded by the handler.
190 struct sysctl_oid_list oid_children;
191 struct sysctl_oid_list *oid_parent;
192 SLIST_ENTRY(sysctl_oid) oid_link;
197 const char *oid_name;
198 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
202 const char *oid_descr;
203 const char *oid_label;
206 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
207 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
208 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
210 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS);
211 int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
212 int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
213 int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
214 int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
215 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
216 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
217 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
218 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
219 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
220 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
221 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS);
223 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
224 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
226 int sysctl_msec_to_sbintime(SYSCTL_HANDLER_ARGS);
227 int sysctl_usec_to_sbintime(SYSCTL_HANDLER_ARGS);
228 int sysctl_sec_to_timeval(SYSCTL_HANDLER_ARGS);
230 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
231 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
232 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
235 * These functions are used to add/remove an oid from the mib.
237 void sysctl_register_oid(struct sysctl_oid *oidp);
238 void sysctl_register_disabled_oid(struct sysctl_oid *oidp);
239 void sysctl_enable_oid(struct sysctl_oid *oidp);
240 void sysctl_unregister_oid(struct sysctl_oid *oidp);
242 /* Declare a static oid to allow child oids to be added to it. */
243 #define SYSCTL_DECL(name) \
244 extern struct sysctl_oid sysctl__##name
246 /* Hide these in macros. */
247 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
248 #define SYSCTL_PARENT(oid_ptr) \
249 (((oid_ptr)->oid_parent != &sysctl__children) ? \
250 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
251 oid_children) : (struct sysctl_oid *)NULL)
252 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
254 /* === Structs and macros related to context handling. === */
256 /* All dynamically created sysctls can be tracked in a context list. */
257 struct sysctl_ctx_entry {
258 struct sysctl_oid *entry;
259 TAILQ_ENTRY(sysctl_ctx_entry) link;
262 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
264 #define SYSCTL_NODE_CHILDREN(parent, name) \
265 sysctl__##parent##_##name.oid_children
267 #ifndef NO_SYSCTL_DESCR
270 #define __DESCR(d) ""
274 #define SYSCTL_ENFORCE_FLAGS(x) \
275 _Static_assert((((x) & CTLFLAG_MPSAFE) != 0) ^ (((x) & CTLFLAG_NEEDGIANT) != 0), \
276 "Has to be either CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT")
278 #define SYSCTL_ENFORCE_FLAGS(x)
281 /* This macro is only for internal use */
282 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
283 struct sysctl_oid id = { \
284 .oid_parent = (parent_child_head), \
285 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \
286 .oid_number = (nbr), \
287 .oid_kind = (kind), \
290 .oid_name = (name), \
291 .oid_handler = (handler), \
293 .oid_descr = __DESCR(descr), \
294 .oid_label = (label), \
296 DATA_SET(sysctl_set, id); \
297 SYSCTL_ENFORCE_FLAGS(kind)
299 /* This constructs a static "raw" MIB oid. */
300 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
301 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \
302 handler, fmt, descr, NULL)
304 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
305 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
306 SYSCTL_CHILDREN(&sysctl__##parent), \
307 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
309 /* This constructs a global "raw" MIB oid. */
310 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
311 SYSCTL_OID_RAW(sysctl__##parent##_##name, \
312 SYSCTL_CHILDREN(&sysctl__##parent), \
313 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
315 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
317 SYSCTL_ENFORCE_FLAGS(kind); \
318 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2,handler, \
319 fmt, __DESCR(descr), NULL); \
322 /* This constructs a root node from which other nodes can hang. */
323 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
324 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
325 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
326 handler, "N", descr, NULL); \
327 CTASSERT(((access) & CTLTYPE) == 0 || \
328 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
330 /* This constructs a node from which other oids can hang. */
331 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
332 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL)
334 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \
335 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
336 NULL, 0, handler, "N", descr, label); \
337 CTASSERT(((access) & CTLTYPE) == 0 || \
338 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
340 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
341 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \
342 handler, descr, NULL)
344 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \
346 CTASSERT(((access) & CTLTYPE) == 0 || \
347 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
348 SYSCTL_ENFORCE_FLAGS(access); \
349 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
350 NULL, 0, handler, "N", __DESCR(descr), label); \
353 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
355 CTASSERT(((access) & CTLTYPE) == 0 || \
356 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
357 SYSCTL_ENFORCE_FLAGS(access); \
358 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
359 CTLTYPE_NODE|(access), \
360 NULL, 0, handler, "N", __DESCR(descr), NULL); \
363 /* Oid for a string. len can be 0 to indicate '\0' termination. */
364 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
365 SYSCTL_OID(parent, nbr, name, \
366 CTLTYPE_STRING | CTLFLAG_MPSAFE | (access), \
367 arg, len, sysctl_handle_string, "A", descr); \
368 CTASSERT(((access) & CTLTYPE) == 0 || \
369 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
371 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
373 char *__arg = (arg); \
374 CTASSERT(((access) & CTLTYPE) == 0 || \
375 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
376 sysctl_add_oid(ctx, parent, nbr, name, \
377 CTLTYPE_STRING | CTLFLAG_MPSAFE | (access), \
378 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \
382 /* Oid for a constant '\0' terminated string. */
383 #define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \
384 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING | CTLFLAG_MPSAFE | (access),\
385 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \
386 CTASSERT(!(access & CTLFLAG_WR)); \
387 CTASSERT(((access) & CTLTYPE) == 0 || \
388 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
390 #define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \
392 char *__arg = __DECONST(char *, arg); \
393 CTASSERT(!(access & CTLFLAG_WR)); \
394 CTASSERT(((access) & CTLTYPE) == 0 || \
395 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
396 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING | \
397 CTLFLAG_MPSAFE | (access), __arg, 0, sysctl_handle_string, "A",\
398 __DESCR(descr), NULL); \
401 /* Oid for a bool. If ptr is NULL, val is returned. */
402 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL)
403 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \
404 SYSCTL_OID(parent, nbr, name, \
405 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
406 ptr, val, sysctl_handle_bool, "CU", descr); \
407 CTASSERT(((access) & CTLTYPE) == 0 && \
408 sizeof(bool) == sizeof(*(ptr)))
410 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \
412 bool *__ptr = (ptr); \
413 CTASSERT(((access) & CTLTYPE) == 0); \
414 sysctl_add_oid(ctx, parent, nbr, name, \
415 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
416 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \
420 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
421 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
422 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
423 SYSCTL_OID(parent, nbr, name, \
424 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
425 ptr, val, sysctl_handle_8, "C", descr); \
426 CTASSERT((((access) & CTLTYPE) == 0 || \
427 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
428 sizeof(int8_t) == sizeof(*(ptr)))
430 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
432 int8_t *__ptr = (ptr); \
433 CTASSERT(((access) & CTLTYPE) == 0 || \
434 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
435 sysctl_add_oid(ctx, parent, nbr, name, \
436 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
437 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \
440 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
441 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
442 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
443 SYSCTL_OID(parent, nbr, name, \
444 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
445 ptr, val, sysctl_handle_8, "CU", descr); \
446 CTASSERT((((access) & CTLTYPE) == 0 || \
447 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
448 sizeof(uint8_t) == sizeof(*(ptr)))
450 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
452 uint8_t *__ptr = (ptr); \
453 CTASSERT(((access) & CTLTYPE) == 0 || \
454 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
455 sysctl_add_oid(ctx, parent, nbr, name, \
456 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
457 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \
460 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
461 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
462 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
463 SYSCTL_OID(parent, nbr, name, \
464 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
465 ptr, val, sysctl_handle_16, "S", descr); \
466 CTASSERT((((access) & CTLTYPE) == 0 || \
467 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
468 sizeof(int16_t) == sizeof(*(ptr)))
470 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
472 int16_t *__ptr = (ptr); \
473 CTASSERT(((access) & CTLTYPE) == 0 || \
474 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
475 sysctl_add_oid(ctx, parent, nbr, name, \
476 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
477 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \
480 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
481 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
482 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
483 SYSCTL_OID(parent, nbr, name, \
484 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
485 ptr, val, sysctl_handle_16, "SU", descr); \
486 CTASSERT((((access) & CTLTYPE) == 0 || \
487 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
488 sizeof(uint16_t) == sizeof(*(ptr)))
490 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
492 uint16_t *__ptr = (ptr); \
493 CTASSERT(((access) & CTLTYPE) == 0 || \
494 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
495 sysctl_add_oid(ctx, parent, nbr, name, \
496 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
497 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \
500 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
501 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
502 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
503 SYSCTL_OID(parent, nbr, name, \
504 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
505 ptr, val, sysctl_handle_32, "I", descr); \
506 CTASSERT((((access) & CTLTYPE) == 0 || \
507 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
508 sizeof(int32_t) == sizeof(*(ptr)))
510 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
512 int32_t *__ptr = (ptr); \
513 CTASSERT(((access) & CTLTYPE) == 0 || \
514 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
515 sysctl_add_oid(ctx, parent, nbr, name, \
516 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
517 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \
520 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
521 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
522 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
523 SYSCTL_OID(parent, nbr, name, \
524 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
525 ptr, val, sysctl_handle_32, "IU", descr); \
526 CTASSERT((((access) & CTLTYPE) == 0 || \
527 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
528 sizeof(uint32_t) == sizeof(*(ptr)))
530 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
532 uint32_t *__ptr = (ptr); \
533 CTASSERT(((access) & CTLTYPE) == 0 || \
534 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
535 sysctl_add_oid(ctx, parent, nbr, name, \
536 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
537 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \
540 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
541 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
542 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
543 SYSCTL_OID(parent, nbr, name, \
544 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
545 ptr, val, sysctl_handle_64, "Q", descr); \
546 CTASSERT((((access) & CTLTYPE) == 0 || \
547 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
548 sizeof(int64_t) == sizeof(*(ptr)))
550 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
552 int64_t *__ptr = (ptr); \
553 CTASSERT(((access) & CTLTYPE) == 0 || \
554 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
555 sysctl_add_oid(ctx, parent, nbr, name, \
556 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
557 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
560 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
561 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
562 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
563 SYSCTL_OID(parent, nbr, name, \
564 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
565 ptr, val, sysctl_handle_64, "QU", descr); \
566 CTASSERT((((access) & CTLTYPE) == 0 || \
567 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
568 sizeof(uint64_t) == sizeof(*(ptr)))
570 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
572 uint64_t *__ptr = (ptr); \
573 CTASSERT(((access) & CTLTYPE) == 0 || \
574 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
575 sysctl_add_oid(ctx, parent, nbr, name, \
576 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
577 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
580 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
581 #define SYSCTL_NULL_INT_PTR ((int *)NULL)
582 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
583 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL)
585 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \
586 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \
587 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
588 ptr, val, sysctl_handle_int, "I", descr, label); \
589 CTASSERT((((access) & CTLTYPE) == 0 || \
590 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
591 sizeof(int) == sizeof(*(ptr)))
593 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
595 int *__ptr = (ptr); \
596 CTASSERT(((access) & CTLTYPE) == 0 || \
597 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
598 sysctl_add_oid(ctx, parent, nbr, name, \
599 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
600 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \
603 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
604 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
605 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
606 SYSCTL_OID(parent, nbr, name, \
607 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
608 ptr, val, sysctl_handle_int, "IU", descr); \
609 CTASSERT((((access) & CTLTYPE) == 0 || \
610 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
611 sizeof(unsigned) == sizeof(*(ptr)))
613 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
615 unsigned *__ptr = (ptr); \
616 CTASSERT(((access) & CTLTYPE) == 0 || \
617 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
618 sysctl_add_oid(ctx, parent, nbr, name, \
619 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
620 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \
623 /* Oid for a long. The pointer must be non NULL. */
624 #define SYSCTL_NULL_LONG_PTR ((long *)NULL)
625 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
626 SYSCTL_OID(parent, nbr, name, \
627 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
628 ptr, val, sysctl_handle_long, "L", descr); \
629 CTASSERT((((access) & CTLTYPE) == 0 || \
630 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
631 sizeof(long) == sizeof(*(ptr)))
633 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
635 long *__ptr = (ptr); \
636 CTASSERT(((access) & CTLTYPE) == 0 || \
637 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
638 sysctl_add_oid(ctx, parent, nbr, name, \
639 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
640 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \
643 /* Oid for an unsigned long. The pointer must be non NULL. */
644 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
645 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
646 SYSCTL_OID(parent, nbr, name, \
647 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
648 ptr, val, sysctl_handle_long, "LU", descr); \
649 CTASSERT((((access) & CTLTYPE) == 0 || \
650 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
651 sizeof(unsigned long) == sizeof(*(ptr)))
653 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
655 unsigned long *__ptr = (ptr); \
656 CTASSERT(((access) & CTLTYPE) == 0 || \
657 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
658 sysctl_add_oid(ctx, parent, nbr, name, \
659 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
660 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \
663 /* Oid for a quad. The pointer must be non NULL. */
664 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
665 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
666 SYSCTL_OID(parent, nbr, name, \
667 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
668 ptr, val, sysctl_handle_64, "Q", descr); \
669 CTASSERT((((access) & CTLTYPE) == 0 || \
670 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
671 sizeof(int64_t) == sizeof(*(ptr)))
673 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
675 int64_t *__ptr = (ptr); \
676 CTASSERT(((access) & CTLTYPE) == 0 || \
677 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
678 sysctl_add_oid(ctx, parent, nbr, name, \
679 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
680 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
683 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
684 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
685 SYSCTL_OID(parent, nbr, name, \
686 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
687 ptr, val, sysctl_handle_64, "QU", descr); \
688 CTASSERT((((access) & CTLTYPE) == 0 || \
689 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
690 sizeof(uint64_t) == sizeof(*(ptr)))
692 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
694 uint64_t *__ptr = (ptr); \
695 CTASSERT(((access) & CTLTYPE) == 0 || \
696 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
697 sysctl_add_oid(ctx, parent, nbr, name, \
698 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
699 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
702 /* Oid for a CPU dependent variable */
703 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
705 struct sysctl_oid *__ret; \
706 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
707 sizeof(unsigned) == sizeof(*(ptr))) && \
708 ((access) & CTLTYPE) == 0); \
709 if (sizeof(uint64_t) == sizeof(*(ptr))) { \
710 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
711 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
712 (ptr), 0, sysctl_handle_64, "QU", \
713 __DESCR(descr), NULL); \
715 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
716 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
717 (ptr), 0, sysctl_handle_int, "IU", \
718 __DESCR(descr), NULL); \
723 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
724 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
725 SYSCTL_OID(parent, nbr, name, \
726 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
727 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
728 CTASSERT((((access) & CTLTYPE) == 0 || \
729 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
730 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
731 sizeof(uint64_t) == sizeof(**(ptr)))
733 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
735 counter_u64_t *__ptr = (ptr); \
736 CTASSERT(((access) & CTLTYPE) == 0 || \
737 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
738 sysctl_add_oid(ctx, parent, nbr, name, \
739 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
740 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \
744 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */
745 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \
746 SYSCTL_OID(parent, nbr, name, \
747 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
748 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \
749 CTASSERT((((access) & CTLTYPE) == 0 || \
750 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \
751 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
752 sizeof(uint64_t) == sizeof(**(ptr)))
754 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \
757 counter_u64_t *__ptr = (ptr); \
758 CTASSERT(((access) & CTLTYPE) == 0 || \
759 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
760 sysctl_add_oid(ctx, parent, nbr, name, \
761 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
762 __ptr, len, sysctl_handle_counter_u64_array, "S", \
763 __DESCR(descr), NULL); \
766 /* Oid for an opaque object. Specified by a pointer and a length. */
767 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
768 SYSCTL_OID(parent, nbr, name, \
769 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
770 ptr, len, sysctl_handle_opaque, fmt, descr); \
771 CTASSERT(((access) & CTLTYPE) == 0 || \
772 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
774 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
776 CTASSERT(((access) & CTLTYPE) == 0 || \
777 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
778 sysctl_add_oid(ctx, parent, nbr, name, \
779 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
780 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \
783 /* Oid for a struct. Specified by a pointer and a type. */
784 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
785 SYSCTL_OID(parent, nbr, name, \
786 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
787 ptr, sizeof(struct type), sysctl_handle_opaque, \
788 "S," #type, descr); \
789 CTASSERT(((access) & CTLTYPE) == 0 || \
790 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
792 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
794 CTASSERT(((access) & CTLTYPE) == 0 || \
795 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
796 sysctl_add_oid(ctx, parent, nbr, name, \
797 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
798 (ptr), sizeof(struct type), \
799 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \
802 /* Oid for a procedure. Specified by a pointer and an arg. */
803 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
804 SYSCTL_OID(parent, nbr, name, (access), \
805 ptr, arg, handler, fmt, descr); \
806 CTASSERT(((access) & CTLTYPE) != 0)
808 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
810 CTASSERT(((access) & CTLTYPE) != 0); \
811 SYSCTL_ENFORCE_FLAGS(access); \
812 sysctl_add_oid(ctx, parent, nbr, name, (access), \
813 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \
816 /* Oid to handle limits on uma(9) zone specified by pointer. */
817 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
818 SYSCTL_OID(parent, nbr, name, \
819 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
820 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
821 CTASSERT(((access) & CTLTYPE) == 0 || \
822 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
824 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
826 uma_zone_t __ptr = (ptr); \
827 CTASSERT(((access) & CTLTYPE) == 0 || \
828 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
829 sysctl_add_oid(ctx, parent, nbr, name, \
830 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
831 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \
835 /* Oid to obtain current use of uma(9) zone specified by pointer. */
836 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
837 SYSCTL_OID(parent, nbr, name, \
838 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
839 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
840 CTASSERT(((access) & CTLTYPE) == 0 || \
841 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
843 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
845 uma_zone_t __ptr = (ptr); \
846 CTASSERT(((access) & CTLTYPE) == 0 || \
847 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
848 sysctl_add_oid(ctx, parent, nbr, name, \
849 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
850 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \
854 /* OID expressing a sbintime_t as microseconds */
855 #define SYSCTL_SBINTIME_USEC(parent, nbr, name, access, ptr, descr) \
856 SYSCTL_OID(parent, nbr, name, \
857 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
858 (ptr), 0, sysctl_usec_to_sbintime, "Q", descr); \
859 CTASSERT(((access) & CTLTYPE) == 0 || \
860 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64)
861 #define SYSCTL_ADD_SBINTIME_USEC(ctx, parent, nbr, name, access, ptr, descr) \
863 sbintime_t *__ptr = (ptr); \
864 CTASSERT(((access) & CTLTYPE) == 0 || \
865 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
866 sysctl_add_oid(ctx, parent, nbr, name, \
867 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
868 __ptr, 0, sysctl_usec_to_sbintime, "Q", __DESCR(descr), \
872 /* OID expressing a sbintime_t as milliseconds */
873 #define SYSCTL_SBINTIME_MSEC(parent, nbr, name, access, ptr, descr) \
874 SYSCTL_OID(parent, nbr, name, \
875 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
876 (ptr), 0, sysctl_msec_to_sbintime, "Q", descr); \
877 CTASSERT(((access) & CTLTYPE) == 0 || \
878 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64)
879 #define SYSCTL_ADD_SBINTIME_MSEC(ctx, parent, nbr, name, access, ptr, descr) \
881 sbintime_t *__ptr = (ptr); \
882 CTASSERT(((access) & CTLTYPE) == 0 || \
883 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
884 sysctl_add_oid(ctx, parent, nbr, name, \
885 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
886 __ptr, 0, sysctl_msec_to_sbintime, "Q", __DESCR(descr), \
890 /* OID expressing a struct timeval as seconds */
891 #define SYSCTL_TIMEVAL_SEC(parent, nbr, name, access, ptr, descr) \
892 SYSCTL_OID(parent, nbr, name, \
893 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
894 (ptr), 0, sysctl_sec_to_timeval, "I", descr); \
895 CTASSERT(((access) & CTLTYPE) == 0 || \
896 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
897 #define SYSCTL_ADD_TIMEVAL_SEC(ctx, parent, nbr, name, access, ptr, descr) \
899 struct timeval *__ptr = (ptr); \
900 CTASSERT(((access) & CTLTYPE) == 0 || \
901 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
902 sysctl_add_oid(ctx, parent, nbr, name, \
903 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
904 __ptr, 0, sysctl_sec_to_timeval, "I", __DESCR(descr), \
909 * A macro to generate a read-only sysctl to indicate the presence of optional
912 #define FEATURE(name, desc) \
913 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \
914 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature")
919 * Top-level identifiers
921 #define CTL_SYSCTL 0 /* "magic" numbers */
922 #define CTL_KERN 1 /* "high kernel": proc, limits */
923 #define CTL_VM 2 /* virtual memory */
924 #define CTL_VFS 3 /* filesystem, mount type is next */
925 #define CTL_NET 4 /* network, see socket.h */
926 #define CTL_DEBUG 5 /* debugging parameters */
927 #define CTL_HW 6 /* generic cpu/io */
928 #define CTL_MACHDEP 7 /* machine dependent */
929 #define CTL_USER 8 /* user-level */
930 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
933 * CTL_SYSCTL identifiers
935 #define CTL_SYSCTL_DEBUG 0 /* printf all nodes */
936 #define CTL_SYSCTL_NAME 1 /* string name of OID */
937 #define CTL_SYSCTL_NEXT 2 /* next OID */
938 #define CTL_SYSCTL_NAME2OID 3 /* int array of name */
939 #define CTL_SYSCTL_OIDFMT 4 /* OID's kind and format */
940 #define CTL_SYSCTL_OIDDESCR 5 /* OID's description */
941 #define CTL_SYSCTL_OIDLABEL 6 /* aggregation label */
944 * CTL_KERN identifiers
946 #define KERN_OSTYPE 1 /* string: system version */
947 #define KERN_OSRELEASE 2 /* string: system release */
948 #define KERN_OSREV 3 /* int: system revision */
949 #define KERN_VERSION 4 /* string: compile time info */
950 #define KERN_MAXVNODES 5 /* int: max vnodes */
951 #define KERN_MAXPROC 6 /* int: max processes */
952 #define KERN_MAXFILES 7 /* int: max open files */
953 #define KERN_ARGMAX 8 /* int: max arguments to exec */
954 #define KERN_SECURELVL 9 /* int: system security level */
955 #define KERN_HOSTNAME 10 /* string: hostname */
956 #define KERN_HOSTID 11 /* int: host identifier */
957 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
958 #define KERN_VNODE 13 /* struct: vnode structures */
959 #define KERN_PROC 14 /* struct: process entries */
960 #define KERN_FILE 15 /* struct: file entries */
961 #define KERN_PROF 16 /* node: kernel profiling info */
962 #define KERN_POSIX1 17 /* int: POSIX.1 version */
963 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
964 #define KERN_JOB_CONTROL 19 /* int: is job control available */
965 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
966 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
967 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
968 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
969 #define KERN_OSRELDATE 24 /* int: kernel release date */
970 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
971 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
972 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
973 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
974 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
975 #define KERN_IPC 30 /* node: anything related to IPC */
976 #define KERN_DUMMY 31 /* unused */
977 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
978 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
979 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
980 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
981 #define KERN_HOSTUUID 36 /* string: host UUID identifier */
982 #define KERN_ARND 37 /* int: from arc4rand() */
983 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */
987 #define KERN_PROC_ALL 0 /* everything */
988 #define KERN_PROC_PID 1 /* by process id */
989 #define KERN_PROC_PGRP 2 /* by process group id */
990 #define KERN_PROC_SESSION 3 /* by session of pid */
991 #define KERN_PROC_TTY 4 /* by controlling tty */
992 #define KERN_PROC_UID 5 /* by effective uid */
993 #define KERN_PROC_RUID 6 /* by real uid */
994 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
995 #define KERN_PROC_PROC 8 /* only return procs */
996 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */
997 #define KERN_PROC_RGID 10 /* by real group id */
998 #define KERN_PROC_GID 11 /* by effective group id */
999 #define KERN_PROC_PATHNAME 12 /* path to executable */
1000 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
1001 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
1002 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
1003 #define KERN_PROC_INC_THREAD 0x10 /*
1004 * modifier for pid, pgrp, tty,
1005 * uid, ruid, gid, rgid and proc
1006 * This effectively uses 16-31
1008 #define KERN_PROC_VMMAP 32 /* VM map entries for process */
1009 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */
1010 #define KERN_PROC_GROUPS 34 /* process groups */
1011 #define KERN_PROC_ENV 35 /* get environment */
1012 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
1013 #define KERN_PROC_RLIMIT 37 /* process resource limits */
1014 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
1015 #define KERN_PROC_UMASK 39 /* process umask */
1016 #define KERN_PROC_OSREL 40 /* osreldate for process binary */
1017 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
1018 #define KERN_PROC_CWD 42 /* process current working directory */
1019 #define KERN_PROC_NFDS 43 /* number of open file descriptors */
1020 #define KERN_PROC_SIGFASTBLK 44 /* address of fastsigblk magic word */
1023 * KERN_IPC identifiers
1025 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
1026 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
1027 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
1028 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
1029 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
1030 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
1031 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
1034 * CTL_HW identifiers
1036 #define HW_MACHINE 1 /* string: machine class */
1037 #define HW_MODEL 2 /* string: specific machine model */
1038 #define HW_NCPU 3 /* int: number of cpus */
1039 #define HW_BYTEORDER 4 /* int: machine byte order */
1040 #define HW_PHYSMEM 5 /* int: total memory */
1041 #define HW_USERMEM 6 /* int: non-kernel memory */
1042 #define HW_PAGESIZE 7 /* int: software page size */
1043 #define HW_DISKNAMES 8 /* strings: disk drive names */
1044 #define HW_DISKSTATS 9 /* struct: diskstats[] */
1045 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
1046 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
1047 #define HW_REALMEM 12 /* int: 'real' memory */
1050 * CTL_USER definitions
1052 #define USER_CS_PATH 1 /* string: _CS_PATH */
1053 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
1054 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
1055 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
1056 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
1057 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
1058 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
1059 #define USER_LINE_MAX 8 /* int: LINE_MAX */
1060 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
1061 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
1062 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
1063 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
1064 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
1065 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
1066 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
1067 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
1068 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
1069 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
1070 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
1071 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
1073 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
1074 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
1075 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
1076 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
1077 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
1078 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
1079 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
1080 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
1081 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
1082 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
1083 #define CTL_P1003_1B_FSYNC 11 /* boolean */
1084 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
1085 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
1086 #define CTL_P1003_1B_TIMERS 14 /* boolean */
1087 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
1088 #define CTL_P1003_1B_AIO_MAX 16 /* int */
1089 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
1090 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
1091 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
1092 #define CTL_P1003_1B_PAGESIZE 20 /* int */
1093 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
1094 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
1095 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
1096 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
1097 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
1099 #define CTL_P1003_1B_MAXID 26
1104 * Declare some common oids.
1106 extern struct sysctl_oid_list sysctl__children;
1108 SYSCTL_DECL(_kern_features);
1109 SYSCTL_DECL(_kern_ipc);
1110 SYSCTL_DECL(_kern_proc);
1111 SYSCTL_DECL(_kern_sched);
1112 SYSCTL_DECL(_kern_sched_stats);
1113 SYSCTL_DECL(_sysctl);
1115 SYSCTL_DECL(_vm_stats);
1116 SYSCTL_DECL(_vm_stats_misc);
1119 SYSCTL_DECL(_debug);
1120 SYSCTL_DECL(_debug_sizeof);
1123 SYSCTL_DECL(_hw_bus);
1124 SYSCTL_DECL(_hw_bus_devices);
1125 SYSCTL_DECL(_hw_bus_info);
1126 SYSCTL_DECL(_machdep);
1127 SYSCTL_DECL(_machdep_mitigations);
1129 SYSCTL_DECL(_compat);
1130 SYSCTL_DECL(_regression);
1131 SYSCTL_DECL(_security);
1132 SYSCTL_DECL(_security_bsd);
1134 extern char machine[];
1135 extern char osrelease[];
1136 extern char ostype[];
1137 extern char kern_ident[];
1139 /* Dynamic oid handling */
1140 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
1141 struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
1142 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
1143 const char *fmt, const char *descr, const char *label);
1144 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
1146 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
1147 int sysctl_move_oid(struct sysctl_oid *oidp,
1148 struct sysctl_oid_list *parent);
1149 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
1150 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
1151 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
1152 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
1153 struct sysctl_oid *oidp);
1154 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
1155 struct sysctl_oid *oidp);
1156 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
1157 struct sysctl_oid *oidp);
1159 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1160 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1162 int kernel_sysctlbyname(struct thread *td, char *name, void *old,
1163 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1165 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1166 size_t *oldlenp, int inkernel, const void *new, size_t newlen,
1167 size_t *retval, int flags);
1168 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
1169 int *nindx, struct sysctl_req *req);
1170 void sysctl_wlock(void);
1171 void sysctl_wunlock(void);
1172 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
1173 int kern___sysctlbyname(struct thread *td, const char *name,
1174 size_t namelen, void *old, size_t *oldlenp, void *new,
1175 size_t newlen, size_t *retval, int flags, bool inkernel);
1178 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
1179 struct sysctl_req *);
1180 #else /* !_KERNEL */
1181 #include <sys/cdefs.h>
1184 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1185 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
1186 int sysctlnametomib(const char *, int *, size_t *);
1188 #endif /* _KERNEL */
1190 #endif /* !_SYS_SYSCTL_H_ */