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 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
36 #ifndef _SYS_SYSCTL_H_
37 #define _SYS_SYSCTL_H_
39 #include <sys/queue.h>
43 * Definitions for sysctl call. The sysctl call uses a hierarchical name
44 * for objects that can be examined or modified. The name is expressed as
45 * a sequence of integers. Like a file path name, the meaning of each
46 * component depends on its place in the hierarchy. The top-level and kern
47 * identifiers are defined here, and other identifiers are defined in the
48 * respective subsystem header files.
51 #define CTL_MAXNAME 24 /* largest number of components supported */
54 * Each subsystem defined by sysctl defines a list of variables
55 * for that subsystem. Each name is either a node with further
56 * levels defined below it, or it is a leaf of some particular
57 * type given below. Each sysctl level defines a set of name/type
58 * pairs to be used by sysctl(8) in manipulating the subsystem.
61 char *ctl_name; /* subsystem name */
62 int ctl_type; /* type of name */
65 #define CTLTYPE 0xf /* mask for the type */
66 #define CTLTYPE_NODE 1 /* name is a node */
67 #define CTLTYPE_INT 2 /* name describes an integer */
68 #define CTLTYPE_STRING 3 /* name describes a string */
69 #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */
70 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
71 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
72 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
73 #define CTLTYPE_LONG 7 /* name describes a long */
74 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
75 #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */
76 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */
77 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */
78 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */
79 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */
80 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */
81 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */
83 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
84 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
85 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
86 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
87 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
88 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
89 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
90 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
91 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
92 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */
93 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN)
94 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN)
95 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */
96 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */
97 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
98 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */
99 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */
100 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */
101 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */
102 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
105 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
107 * Secure when the securelevel is raised to at least N.
109 #define CTLSHIFT_SECURE 20
110 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
111 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
112 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
115 * USE THIS instead of a hardwired number from the categories below
116 * to get dynamically assigned sysctl entries using the linker-set
117 * technology. This is the way nearly all new sysctl variables should
119 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
121 #define OID_AUTO (-1)
124 * The starting number for dynamically-assigned entries. WARNING!
125 * ALL static sysctl entries should have numbers LESS than this!
127 #define CTL_AUTO_START 0x100
130 #include <sys/linker_set.h>
133 /* XXX allow overspecification of type in external kernel modules */
134 #define SYSCTL_CT_ASSERT_MASK CTLTYPE
136 #define SYSCTL_CT_ASSERT_MASK 0
139 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
140 intmax_t arg2, struct sysctl_req *req
142 /* definitions for sysctl_req 'lock' member */
143 #define REQ_UNWIRED 1
146 /* definitions for sysctl_req 'flags' member */
147 #if defined(__amd64__) || defined(__powerpc64__) ||\
148 (defined(__mips__) && defined(__mips_n64))
149 #define SCTL_MASK32 1 /* 32 bit emulation */
153 * This describes the access space for a sysctl request. This is needed
154 * so that we can use the interface from the kernel or from user-space.
157 struct thread *td; /* used for access checking */
158 int lock; /* wiring state */
162 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
166 int (*newfunc)(struct sysctl_req *, void *, size_t);
171 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
174 * This describes one "oid" in the MIB tree. Potentially more nodes can
175 * be hidden behind it, expanded by the handler.
178 struct sysctl_oid_list oid_children;
179 struct sysctl_oid_list *oid_parent;
180 SLIST_ENTRY(sysctl_oid) oid_link;
185 const char *oid_name;
186 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
190 const char *oid_descr;
193 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
194 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
195 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
197 int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
198 int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
199 int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
200 int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
201 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
202 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
203 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
204 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
205 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
206 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
208 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
209 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
211 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
212 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
213 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
216 * These functions are used to add/remove an oid from the mib.
218 void sysctl_register_oid(struct sysctl_oid *oidp);
219 void sysctl_unregister_oid(struct sysctl_oid *oidp);
221 /* Declare a static oid to allow child oids to be added to it. */
222 #define SYSCTL_DECL(name) \
223 extern struct sysctl_oid sysctl__##name
225 /* Hide these in macros. */
226 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
227 #define SYSCTL_PARENT(oid_ptr) \
228 (((oid_ptr)->oid_parent != &sysctl__children) ? \
229 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
230 oid_children) : (struct sysctl_oid *)NULL)
231 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
233 /* === Structs and macros related to context handling. === */
235 /* All dynamically created sysctls can be tracked in a context list. */
236 struct sysctl_ctx_entry {
237 struct sysctl_oid *entry;
238 TAILQ_ENTRY(sysctl_ctx_entry) link;
241 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
243 #define SYSCTL_NODE_CHILDREN(parent, name) \
244 sysctl__##parent##_##name.oid_children
246 #ifndef NO_SYSCTL_DESCR
249 #define __DESCR(d) ""
252 /* This macro is only for internal use */
253 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \
254 struct sysctl_oid id = { \
255 .oid_parent = (parent_child_head), \
256 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \
257 .oid_number = (nbr), \
258 .oid_kind = (kind), \
261 .oid_name = (name), \
262 .oid_handler = (handler), \
264 .oid_descr = __DESCR(descr) \
266 DATA_SET(sysctl_set, id)
268 /* This constructs a static "raw" MIB oid. */
269 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
270 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
271 SYSCTL_CHILDREN(&sysctl__##parent), \
272 nbr, #name, kind, a1, a2, handler, fmt, descr)
274 /* This constructs a global "raw" MIB oid. */
275 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
276 SYSCTL_OID_RAW(sysctl__##parent##_##name, \
277 SYSCTL_CHILDREN(&sysctl__##parent), \
278 nbr, #name, kind, a1, a2, handler, fmt, descr)
280 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
281 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr))
283 /* This constructs a root node from which other nodes can hang. */
284 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
285 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
286 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
287 handler, "N", descr); \
288 CTASSERT(((access) & CTLTYPE) == 0 || \
289 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
291 /* This constructs a node from which other oids can hang. */
292 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
293 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
294 NULL, 0, handler, "N", descr); \
295 CTASSERT(((access) & CTLTYPE) == 0 || \
296 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
298 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
300 CTASSERT(((access) & CTLTYPE) == 0 || \
301 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
302 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
303 NULL, 0, handler, "N", __DESCR(descr)); \
306 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
308 CTASSERT(((access) & CTLTYPE) == 0 || \
309 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
310 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
311 CTLTYPE_NODE|(access), \
312 NULL, 0, handler, "N", __DESCR(descr)); \
315 /* Oid for a string. len can be 0 to indicate '\0' termination. */
316 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
317 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
318 arg, len, sysctl_handle_string, "A", descr); \
319 CTASSERT(((access) & CTLTYPE) == 0 || \
320 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
322 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
324 char *__arg = (arg); \
325 CTASSERT(((access) & CTLTYPE) == 0 || \
326 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
327 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
328 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \
331 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
332 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
333 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
334 SYSCTL_OID(parent, nbr, name, \
335 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
336 ptr, val, sysctl_handle_8, "C", descr); \
337 CTASSERT((((access) & CTLTYPE) == 0 || \
338 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
339 sizeof(int8_t) == sizeof(*(ptr)))
341 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
343 int8_t *__ptr = (ptr); \
344 CTASSERT(((access) & CTLTYPE) == 0 || \
345 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
346 sysctl_add_oid(ctx, parent, nbr, name, \
347 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
348 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \
351 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
352 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
353 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
354 SYSCTL_OID(parent, nbr, name, \
355 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
356 ptr, val, sysctl_handle_8, "CU", descr); \
357 CTASSERT((((access) & CTLTYPE) == 0 || \
358 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
359 sizeof(uint8_t) == sizeof(*(ptr)))
361 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
363 uint8_t *__ptr = (ptr); \
364 CTASSERT(((access) & CTLTYPE) == 0 || \
365 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
366 sysctl_add_oid(ctx, parent, nbr, name, \
367 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
368 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \
371 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
372 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
373 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
374 SYSCTL_OID(parent, nbr, name, \
375 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
376 ptr, val, sysctl_handle_16, "S", descr); \
377 CTASSERT((((access) & CTLTYPE) == 0 || \
378 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
379 sizeof(int16_t) == sizeof(*(ptr)))
381 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
383 int16_t *__ptr = (ptr); \
384 CTASSERT(((access) & CTLTYPE) == 0 || \
385 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
386 sysctl_add_oid(ctx, parent, nbr, name, \
387 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
388 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \
391 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
392 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
393 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
394 SYSCTL_OID(parent, nbr, name, \
395 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
396 ptr, val, sysctl_handle_16, "SU", descr); \
397 CTASSERT((((access) & CTLTYPE) == 0 || \
398 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
399 sizeof(uint16_t) == sizeof(*(ptr)))
401 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
403 uint16_t *__ptr = (ptr); \
404 CTASSERT(((access) & CTLTYPE) == 0 || \
405 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
406 sysctl_add_oid(ctx, parent, nbr, name, \
407 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
408 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \
411 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
412 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
413 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
414 SYSCTL_OID(parent, nbr, name, \
415 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
416 ptr, val, sysctl_handle_32, "I", descr); \
417 CTASSERT((((access) & CTLTYPE) == 0 || \
418 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
419 sizeof(int32_t) == sizeof(*(ptr)))
421 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
423 int32_t *__ptr = (ptr); \
424 CTASSERT(((access) & CTLTYPE) == 0 || \
425 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
426 sysctl_add_oid(ctx, parent, nbr, name, \
427 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
428 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \
431 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
432 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
433 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
434 SYSCTL_OID(parent, nbr, name, \
435 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
436 ptr, val, sysctl_handle_32, "IU", descr); \
437 CTASSERT((((access) & CTLTYPE) == 0 || \
438 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
439 sizeof(uint32_t) == sizeof(*(ptr)))
441 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
443 uint32_t *__ptr = (ptr); \
444 CTASSERT(((access) & CTLTYPE) == 0 || \
445 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
446 sysctl_add_oid(ctx, parent, nbr, name, \
447 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
448 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \
451 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
452 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
453 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
454 SYSCTL_OID(parent, nbr, name, \
455 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
456 ptr, val, sysctl_handle_64, "Q", descr); \
457 CTASSERT((((access) & CTLTYPE) == 0 || \
458 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
459 sizeof(int64_t) == sizeof(*(ptr)))
461 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
463 int64_t *__ptr = (ptr); \
464 CTASSERT(((access) & CTLTYPE) == 0 || \
465 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
466 sysctl_add_oid(ctx, parent, nbr, name, \
467 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
468 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \
471 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
472 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
473 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
474 SYSCTL_OID(parent, nbr, name, \
475 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
476 ptr, val, sysctl_handle_64, "QU", descr); \
477 CTASSERT((((access) & CTLTYPE) == 0 || \
478 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
479 sizeof(uint64_t) == sizeof(*(ptr)))
481 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
483 uint64_t *__ptr = (ptr); \
484 CTASSERT(((access) & CTLTYPE) == 0 || \
485 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
486 sysctl_add_oid(ctx, parent, nbr, name, \
487 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
488 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \
491 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
492 #define SYSCTL_NULL_INT_PTR ((int *)NULL)
493 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
494 SYSCTL_OID(parent, nbr, name, \
495 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
496 ptr, val, sysctl_handle_int, "I", descr); \
497 CTASSERT((((access) & CTLTYPE) == 0 || \
498 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
499 sizeof(int) == sizeof(*(ptr)))
501 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
503 int *__ptr = (ptr); \
504 CTASSERT(((access) & CTLTYPE) == 0 || \
505 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
506 sysctl_add_oid(ctx, parent, nbr, name, \
507 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
508 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \
511 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
512 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
513 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
514 SYSCTL_OID(parent, nbr, name, \
515 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
516 ptr, val, sysctl_handle_int, "IU", descr); \
517 CTASSERT((((access) & CTLTYPE) == 0 || \
518 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
519 sizeof(unsigned) == sizeof(*(ptr)))
521 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
523 unsigned *__ptr = (ptr); \
524 CTASSERT(((access) & CTLTYPE) == 0 || \
525 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
526 sysctl_add_oid(ctx, parent, nbr, name, \
527 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
528 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \
531 /* Oid for a long. The pointer must be non NULL. */
532 #define SYSCTL_NULL_LONG_PTR ((long *)NULL)
533 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
534 SYSCTL_OID(parent, nbr, name, \
535 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
536 ptr, val, sysctl_handle_long, "L", descr); \
537 CTASSERT((((access) & CTLTYPE) == 0 || \
538 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
539 sizeof(long) == sizeof(*(ptr)))
541 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
543 long *__ptr = (ptr); \
544 CTASSERT(((access) & CTLTYPE) == 0 || \
545 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
546 sysctl_add_oid(ctx, parent, nbr, name, \
547 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
548 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \
551 /* Oid for an unsigned long. The pointer must be non NULL. */
552 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
553 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
554 SYSCTL_OID(parent, nbr, name, \
555 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
556 ptr, val, sysctl_handle_long, "LU", descr); \
557 CTASSERT((((access) & CTLTYPE) == 0 || \
558 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
559 sizeof(unsigned long) == sizeof(*(ptr)))
561 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
563 unsigned long *__ptr = (ptr); \
564 CTASSERT(((access) & CTLTYPE) == 0 || \
565 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
566 sysctl_add_oid(ctx, parent, nbr, name, \
567 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
568 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \
571 /* Oid for a quad. The pointer must be non NULL. */
572 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
573 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
574 SYSCTL_OID(parent, nbr, name, \
575 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
576 ptr, val, sysctl_handle_64, "Q", descr); \
577 CTASSERT((((access) & CTLTYPE) == 0 || \
578 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
579 sizeof(int64_t) == sizeof(*(ptr)))
581 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
583 int64_t *__ptr = (ptr); \
584 CTASSERT(((access) & CTLTYPE) == 0 || \
585 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
586 sysctl_add_oid(ctx, parent, nbr, name, \
587 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
588 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \
591 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
592 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
593 SYSCTL_OID(parent, nbr, name, \
594 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
595 ptr, val, sysctl_handle_64, "QU", descr); \
596 CTASSERT((((access) & CTLTYPE) == 0 || \
597 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
598 sizeof(uint64_t) == sizeof(*(ptr)))
600 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
602 uint64_t *__ptr = (ptr); \
603 CTASSERT(((access) & CTLTYPE) == 0 || \
604 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
605 sysctl_add_oid(ctx, parent, nbr, name, \
606 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
607 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \
610 /* Oid for a CPU dependant variable */
611 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
613 struct sysctl_oid *__ret; \
614 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
615 sizeof(unsigned) == sizeof(*(ptr))) && \
616 ((access) & CTLTYPE) == 0); \
617 if (sizeof(uint64_t) == sizeof(*(ptr))) { \
618 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
619 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
620 (ptr), 0, sysctl_handle_64, "QU", \
623 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
624 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
625 (ptr), 0, sysctl_handle_int, "IU", \
631 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
632 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
633 SYSCTL_OID(parent, nbr, name, \
634 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
635 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
636 CTASSERT((((access) & CTLTYPE) == 0 || \
637 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
638 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
639 sizeof(uint64_t) == sizeof(**(ptr)))
641 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
643 counter_u64_t *__ptr = (ptr); \
644 CTASSERT(((access) & CTLTYPE) == 0 || \
645 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
646 sysctl_add_oid(ctx, parent, nbr, name, \
647 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
648 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \
651 /* Oid for an opaque object. Specified by a pointer and a length. */
652 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
653 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
654 ptr, len, sysctl_handle_opaque, fmt, descr); \
655 CTASSERT(((access) & CTLTYPE) == 0 || \
656 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
658 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
660 CTASSERT(((access) & CTLTYPE) == 0 || \
661 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
662 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
663 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \
666 /* Oid for a struct. Specified by a pointer and a type. */
667 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
668 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
669 ptr, sizeof(struct type), sysctl_handle_opaque, \
670 "S," #type, descr); \
671 CTASSERT(((access) & CTLTYPE) == 0 || \
672 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
674 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
676 CTASSERT(((access) & CTLTYPE) == 0 || \
677 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
678 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
679 (ptr), sizeof(struct type), \
680 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \
683 /* Oid for a procedure. Specified by a pointer and an arg. */
684 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
685 SYSCTL_OID(parent, nbr, name, (access), \
686 ptr, arg, handler, fmt, descr); \
687 CTASSERT(((access) & CTLTYPE) != 0)
689 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
691 CTASSERT(((access) & CTLTYPE) != 0); \
692 sysctl_add_oid(ctx, parent, nbr, name, (access), \
693 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \
696 /* Oid to handle limits on uma(9) zone specified by pointer. */
697 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
698 SYSCTL_OID(parent, nbr, name, \
699 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
700 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
701 CTASSERT(((access) & CTLTYPE) == 0 || \
702 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
704 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
706 uma_zone_t __ptr = (ptr); \
707 CTASSERT(((access) & CTLTYPE) == 0 || \
708 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
709 sysctl_add_oid(ctx, parent, nbr, name, \
710 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
711 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \
714 /* Oid to obtain current use of uma(9) zone specified by pointer. */
715 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
716 SYSCTL_OID(parent, nbr, name, \
717 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
718 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
719 CTASSERT(((access) & CTLTYPE) == 0 || \
720 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
722 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
724 uma_zone_t __ptr = (ptr); \
725 CTASSERT(((access) & CTLTYPE) == 0 || \
726 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
727 sysctl_add_oid(ctx, parent, nbr, name, \
728 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
729 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \
733 * A macro to generate a read-only sysctl to indicate the presense of optional
736 #define FEATURE(name, desc) \
737 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \
738 SYSCTL_NULL_INT_PTR, 1, desc)
743 * Top-level identifiers
745 #define CTL_UNSPEC 0 /* unused */
746 #define CTL_KERN 1 /* "high kernel": proc, limits */
747 #define CTL_VM 2 /* virtual memory */
748 #define CTL_VFS 3 /* filesystem, mount type is next */
749 #define CTL_NET 4 /* network, see socket.h */
750 #define CTL_DEBUG 5 /* debugging parameters */
751 #define CTL_HW 6 /* generic cpu/io */
752 #define CTL_MACHDEP 7 /* machine dependent */
753 #define CTL_USER 8 /* user-level */
754 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
757 * CTL_KERN identifiers
759 #define KERN_OSTYPE 1 /* string: system version */
760 #define KERN_OSRELEASE 2 /* string: system release */
761 #define KERN_OSREV 3 /* int: system revision */
762 #define KERN_VERSION 4 /* string: compile time info */
763 #define KERN_MAXVNODES 5 /* int: max vnodes */
764 #define KERN_MAXPROC 6 /* int: max processes */
765 #define KERN_MAXFILES 7 /* int: max open files */
766 #define KERN_ARGMAX 8 /* int: max arguments to exec */
767 #define KERN_SECURELVL 9 /* int: system security level */
768 #define KERN_HOSTNAME 10 /* string: hostname */
769 #define KERN_HOSTID 11 /* int: host identifier */
770 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
771 #define KERN_VNODE 13 /* struct: vnode structures */
772 #define KERN_PROC 14 /* struct: process entries */
773 #define KERN_FILE 15 /* struct: file entries */
774 #define KERN_PROF 16 /* node: kernel profiling info */
775 #define KERN_POSIX1 17 /* int: POSIX.1 version */
776 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
777 #define KERN_JOB_CONTROL 19 /* int: is job control available */
778 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
779 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
780 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
781 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
782 #define KERN_OSRELDATE 24 /* int: kernel release date */
783 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
784 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
785 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
786 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
787 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
788 #define KERN_IPC 30 /* node: anything related to IPC */
789 #define KERN_DUMMY 31 /* unused */
790 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
791 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
792 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
793 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
794 #define KERN_HOSTUUID 36 /* string: host UUID identifier */
795 #define KERN_ARND 37 /* int: from arc4rand() */
799 #define KERN_PROC_ALL 0 /* everything */
800 #define KERN_PROC_PID 1 /* by process id */
801 #define KERN_PROC_PGRP 2 /* by process group id */
802 #define KERN_PROC_SESSION 3 /* by session of pid */
803 #define KERN_PROC_TTY 4 /* by controlling tty */
804 #define KERN_PROC_UID 5 /* by effective uid */
805 #define KERN_PROC_RUID 6 /* by real uid */
806 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
807 #define KERN_PROC_PROC 8 /* only return procs */
808 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */
809 #define KERN_PROC_RGID 10 /* by real group id */
810 #define KERN_PROC_GID 11 /* by effective group id */
811 #define KERN_PROC_PATHNAME 12 /* path to executable */
812 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
813 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
814 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
815 #define KERN_PROC_INC_THREAD 0x10 /*
816 * modifier for pid, pgrp, tty,
817 * uid, ruid, gid, rgid and proc
818 * This effectively uses 16-31
820 #define KERN_PROC_VMMAP 32 /* VM map entries for process */
821 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */
822 #define KERN_PROC_GROUPS 34 /* process groups */
823 #define KERN_PROC_ENV 35 /* get environment */
824 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
825 #define KERN_PROC_RLIMIT 37 /* process resource limits */
826 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
827 #define KERN_PROC_UMASK 39 /* process umask */
828 #define KERN_PROC_OSREL 40 /* osreldate for process binary */
829 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
830 #define KERN_PROC_CWD 42 /* process current working directory */
831 #define KERN_PROC_NFDS 43 /* number of open file descriptors */
834 * KERN_IPC identifiers
836 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
837 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
838 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
839 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
840 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
841 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
842 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
847 #define HW_MACHINE 1 /* string: machine class */
848 #define HW_MODEL 2 /* string: specific machine model */
849 #define HW_NCPU 3 /* int: number of cpus */
850 #define HW_BYTEORDER 4 /* int: machine byte order */
851 #define HW_PHYSMEM 5 /* int: total memory */
852 #define HW_USERMEM 6 /* int: non-kernel memory */
853 #define HW_PAGESIZE 7 /* int: software page size */
854 #define HW_DISKNAMES 8 /* strings: disk drive names */
855 #define HW_DISKSTATS 9 /* struct: diskstats[] */
856 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
857 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
858 #define HW_REALMEM 12 /* int: 'real' memory */
861 * CTL_USER definitions
863 #define USER_CS_PATH 1 /* string: _CS_PATH */
864 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
865 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
866 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
867 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
868 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
869 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
870 #define USER_LINE_MAX 8 /* int: LINE_MAX */
871 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
872 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
873 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
874 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
875 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
876 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
877 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
878 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
879 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
880 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
881 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
882 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
884 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
885 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
886 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
887 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
888 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
889 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
890 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
891 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
892 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
893 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
894 #define CTL_P1003_1B_FSYNC 11 /* boolean */
895 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
896 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
897 #define CTL_P1003_1B_TIMERS 14 /* boolean */
898 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
899 #define CTL_P1003_1B_AIO_MAX 16 /* int */
900 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
901 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
902 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
903 #define CTL_P1003_1B_PAGESIZE 20 /* int */
904 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
905 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
906 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
907 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
908 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
910 #define CTL_P1003_1B_MAXID 26
915 * Declare some common oids.
917 extern struct sysctl_oid_list sysctl__children;
919 SYSCTL_DECL(_kern_features);
920 SYSCTL_DECL(_kern_ipc);
921 SYSCTL_DECL(_kern_proc);
922 SYSCTL_DECL(_kern_sched);
923 SYSCTL_DECL(_kern_sched_stats);
924 SYSCTL_DECL(_sysctl);
926 SYSCTL_DECL(_vm_stats);
927 SYSCTL_DECL(_vm_stats_misc);
931 SYSCTL_DECL(_debug_sizeof);
934 SYSCTL_DECL(_hw_bus);
935 SYSCTL_DECL(_hw_bus_devices);
936 SYSCTL_DECL(_hw_bus_info);
937 SYSCTL_DECL(_machdep);
939 SYSCTL_DECL(_compat);
940 SYSCTL_DECL(_regression);
941 SYSCTL_DECL(_security);
942 SYSCTL_DECL(_security_bsd);
944 extern char machine[];
945 extern char osrelease[];
946 extern char ostype[];
947 extern char kern_ident[];
949 /* Dynamic oid handling */
950 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
951 struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
952 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
953 const char *fmt, const char *descr);
954 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
956 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
957 int sysctl_move_oid(struct sysctl_oid *oidp,
958 struct sysctl_oid_list *parent);
959 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
960 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
961 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
962 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
963 struct sysctl_oid *oidp);
964 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
965 struct sysctl_oid *oidp);
966 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
967 struct sysctl_oid *oidp);
969 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
970 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
972 int kernel_sysctlbyname(struct thread *td, char *name, void *old,
973 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
975 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
976 size_t *oldlenp, int inkernel, void *new, size_t newlen,
977 size_t *retval, int flags);
978 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
979 int *nindx, struct sysctl_req *req);
980 void sysctl_wlock(void);
981 void sysctl_wunlock(void);
982 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
985 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
986 struct sysctl_req *);
988 #include <sys/cdefs.h>
991 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
992 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
993 int sysctlnametomib(const char *, int *, size_t *);
997 #endif /* !_SYS_SYSCTL_H_ */