2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
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;
191 const char *oid_label;
194 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
195 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
196 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
198 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS);
199 int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
200 int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
201 int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
202 int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
203 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
204 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
205 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
206 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
207 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
208 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
209 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS);
211 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
212 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
214 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
215 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
216 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
219 * These functions are used to add/remove an oid from the mib.
221 void sysctl_register_oid(struct sysctl_oid *oidp);
222 void sysctl_unregister_oid(struct sysctl_oid *oidp);
224 /* Declare a static oid to allow child oids to be added to it. */
225 #define SYSCTL_DECL(name) \
226 extern struct sysctl_oid sysctl__##name
228 /* Hide these in macros. */
229 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
230 #define SYSCTL_PARENT(oid_ptr) \
231 (((oid_ptr)->oid_parent != &sysctl__children) ? \
232 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
233 oid_children) : (struct sysctl_oid *)NULL)
234 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
236 /* === Structs and macros related to context handling. === */
238 /* All dynamically created sysctls can be tracked in a context list. */
239 struct sysctl_ctx_entry {
240 struct sysctl_oid *entry;
241 TAILQ_ENTRY(sysctl_ctx_entry) link;
244 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
246 #define SYSCTL_NODE_CHILDREN(parent, name) \
247 sysctl__##parent##_##name.oid_children
249 #ifndef NO_SYSCTL_DESCR
252 #define __DESCR(d) ""
255 /* This macro is only for internal use */
256 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
257 struct sysctl_oid id = { \
258 .oid_parent = (parent_child_head), \
259 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \
260 .oid_number = (nbr), \
261 .oid_kind = (kind), \
264 .oid_name = (name), \
265 .oid_handler = (handler), \
267 .oid_descr = __DESCR(descr), \
268 .oid_label = (label), \
270 DATA_SET(sysctl_set, id)
272 /* This constructs a static "raw" MIB oid. */
273 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
274 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \
275 handler, fmt, descr, NULL)
277 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
278 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
279 SYSCTL_CHILDREN(&sysctl__##parent), \
280 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
282 /* This constructs a global "raw" MIB oid. */
283 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
284 SYSCTL_OID_RAW(sysctl__##parent##_##name, \
285 SYSCTL_CHILDREN(&sysctl__##parent), \
286 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
288 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
289 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL)
291 /* This constructs a root node from which other nodes can hang. */
292 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
293 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
294 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
295 handler, "N", descr, NULL); \
296 CTASSERT(((access) & CTLTYPE) == 0 || \
297 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
299 /* This constructs a node from which other oids can hang. */
300 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
301 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL)
303 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \
304 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
305 NULL, 0, handler, "N", descr, label); \
306 CTASSERT(((access) & CTLTYPE) == 0 || \
307 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
309 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
310 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \
311 handler, descr, NULL)
313 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \
315 CTASSERT(((access) & CTLTYPE) == 0 || \
316 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
317 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
318 NULL, 0, handler, "N", __DESCR(descr), label); \
321 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
323 CTASSERT(((access) & CTLTYPE) == 0 || \
324 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
325 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
326 CTLTYPE_NODE|(access), \
327 NULL, 0, handler, "N", __DESCR(descr), NULL); \
330 /* Oid for a string. len can be 0 to indicate '\0' termination. */
331 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
332 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
333 arg, len, sysctl_handle_string, "A", descr); \
334 CTASSERT(((access) & CTLTYPE) == 0 || \
335 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
337 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
339 char *__arg = (arg); \
340 CTASSERT(((access) & CTLTYPE) == 0 || \
341 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
342 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
343 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \
347 /* Oid for a bool. If ptr is NULL, val is returned. */
348 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL)
349 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \
350 SYSCTL_OID(parent, nbr, name, \
351 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
352 ptr, val, sysctl_handle_bool, "CU", descr); \
353 CTASSERT(((access) & CTLTYPE) == 0 && \
354 sizeof(bool) == sizeof(*(ptr)))
356 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \
358 bool *__ptr = (ptr); \
359 CTASSERT(((access) & CTLTYPE) == 0); \
360 sysctl_add_oid(ctx, parent, nbr, name, \
361 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
362 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \
366 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
367 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
368 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
369 SYSCTL_OID(parent, nbr, name, \
370 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
371 ptr, val, sysctl_handle_8, "C", descr); \
372 CTASSERT((((access) & CTLTYPE) == 0 || \
373 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
374 sizeof(int8_t) == sizeof(*(ptr)))
376 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
378 int8_t *__ptr = (ptr); \
379 CTASSERT(((access) & CTLTYPE) == 0 || \
380 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
381 sysctl_add_oid(ctx, parent, nbr, name, \
382 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
383 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \
386 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
387 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
388 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
389 SYSCTL_OID(parent, nbr, name, \
390 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
391 ptr, val, sysctl_handle_8, "CU", descr); \
392 CTASSERT((((access) & CTLTYPE) == 0 || \
393 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
394 sizeof(uint8_t) == sizeof(*(ptr)))
396 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
398 uint8_t *__ptr = (ptr); \
399 CTASSERT(((access) & CTLTYPE) == 0 || \
400 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
401 sysctl_add_oid(ctx, parent, nbr, name, \
402 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
403 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \
406 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
407 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
408 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
409 SYSCTL_OID(parent, nbr, name, \
410 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
411 ptr, val, sysctl_handle_16, "S", descr); \
412 CTASSERT((((access) & CTLTYPE) == 0 || \
413 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
414 sizeof(int16_t) == sizeof(*(ptr)))
416 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
418 int16_t *__ptr = (ptr); \
419 CTASSERT(((access) & CTLTYPE) == 0 || \
420 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
421 sysctl_add_oid(ctx, parent, nbr, name, \
422 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
423 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \
426 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
427 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
428 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
429 SYSCTL_OID(parent, nbr, name, \
430 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
431 ptr, val, sysctl_handle_16, "SU", descr); \
432 CTASSERT((((access) & CTLTYPE) == 0 || \
433 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
434 sizeof(uint16_t) == sizeof(*(ptr)))
436 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
438 uint16_t *__ptr = (ptr); \
439 CTASSERT(((access) & CTLTYPE) == 0 || \
440 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
441 sysctl_add_oid(ctx, parent, nbr, name, \
442 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
443 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \
446 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
447 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
448 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
449 SYSCTL_OID(parent, nbr, name, \
450 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
451 ptr, val, sysctl_handle_32, "I", descr); \
452 CTASSERT((((access) & CTLTYPE) == 0 || \
453 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
454 sizeof(int32_t) == sizeof(*(ptr)))
456 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
458 int32_t *__ptr = (ptr); \
459 CTASSERT(((access) & CTLTYPE) == 0 || \
460 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
461 sysctl_add_oid(ctx, parent, nbr, name, \
462 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
463 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \
466 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
467 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
468 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
469 SYSCTL_OID(parent, nbr, name, \
470 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
471 ptr, val, sysctl_handle_32, "IU", descr); \
472 CTASSERT((((access) & CTLTYPE) == 0 || \
473 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
474 sizeof(uint32_t) == sizeof(*(ptr)))
476 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
478 uint32_t *__ptr = (ptr); \
479 CTASSERT(((access) & CTLTYPE) == 0 || \
480 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
481 sysctl_add_oid(ctx, parent, nbr, name, \
482 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
483 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \
486 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
487 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
488 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
489 SYSCTL_OID(parent, nbr, name, \
490 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
491 ptr, val, sysctl_handle_64, "Q", descr); \
492 CTASSERT((((access) & CTLTYPE) == 0 || \
493 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
494 sizeof(int64_t) == sizeof(*(ptr)))
496 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
498 int64_t *__ptr = (ptr); \
499 CTASSERT(((access) & CTLTYPE) == 0 || \
500 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
501 sysctl_add_oid(ctx, parent, nbr, name, \
502 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
503 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
506 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
507 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
508 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
509 SYSCTL_OID(parent, nbr, name, \
510 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
511 ptr, val, sysctl_handle_64, "QU", descr); \
512 CTASSERT((((access) & CTLTYPE) == 0 || \
513 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
514 sizeof(uint64_t) == sizeof(*(ptr)))
516 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
518 uint64_t *__ptr = (ptr); \
519 CTASSERT(((access) & CTLTYPE) == 0 || \
520 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
521 sysctl_add_oid(ctx, parent, nbr, name, \
522 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
523 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
526 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
527 #define SYSCTL_NULL_INT_PTR ((int *)NULL)
528 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
529 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL)
531 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \
532 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \
533 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
534 ptr, val, sysctl_handle_int, "I", descr, label); \
535 CTASSERT((((access) & CTLTYPE) == 0 || \
536 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
537 sizeof(int) == sizeof(*(ptr)))
539 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
541 int *__ptr = (ptr); \
542 CTASSERT(((access) & CTLTYPE) == 0 || \
543 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
544 sysctl_add_oid(ctx, parent, nbr, name, \
545 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
546 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \
549 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
550 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
551 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
552 SYSCTL_OID(parent, nbr, name, \
553 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
554 ptr, val, sysctl_handle_int, "IU", descr); \
555 CTASSERT((((access) & CTLTYPE) == 0 || \
556 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
557 sizeof(unsigned) == sizeof(*(ptr)))
559 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
561 unsigned *__ptr = (ptr); \
562 CTASSERT(((access) & CTLTYPE) == 0 || \
563 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
564 sysctl_add_oid(ctx, parent, nbr, name, \
565 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
566 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \
569 /* Oid for a long. The pointer must be non NULL. */
570 #define SYSCTL_NULL_LONG_PTR ((long *)NULL)
571 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
572 SYSCTL_OID(parent, nbr, name, \
573 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
574 ptr, val, sysctl_handle_long, "L", descr); \
575 CTASSERT((((access) & CTLTYPE) == 0 || \
576 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
577 sizeof(long) == sizeof(*(ptr)))
579 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
581 long *__ptr = (ptr); \
582 CTASSERT(((access) & CTLTYPE) == 0 || \
583 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
584 sysctl_add_oid(ctx, parent, nbr, name, \
585 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
586 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \
589 /* Oid for an unsigned long. The pointer must be non NULL. */
590 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
591 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
592 SYSCTL_OID(parent, nbr, name, \
593 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
594 ptr, val, sysctl_handle_long, "LU", descr); \
595 CTASSERT((((access) & CTLTYPE) == 0 || \
596 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
597 sizeof(unsigned long) == sizeof(*(ptr)))
599 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
601 unsigned long *__ptr = (ptr); \
602 CTASSERT(((access) & CTLTYPE) == 0 || \
603 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
604 sysctl_add_oid(ctx, parent, nbr, name, \
605 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
606 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \
609 /* Oid for a quad. The pointer must be non NULL. */
610 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
611 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
612 SYSCTL_OID(parent, nbr, name, \
613 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
614 ptr, val, sysctl_handle_64, "Q", descr); \
615 CTASSERT((((access) & CTLTYPE) == 0 || \
616 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
617 sizeof(int64_t) == sizeof(*(ptr)))
619 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
621 int64_t *__ptr = (ptr); \
622 CTASSERT(((access) & CTLTYPE) == 0 || \
623 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
624 sysctl_add_oid(ctx, parent, nbr, name, \
625 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
626 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
629 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
630 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
631 SYSCTL_OID(parent, nbr, name, \
632 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
633 ptr, val, sysctl_handle_64, "QU", descr); \
634 CTASSERT((((access) & CTLTYPE) == 0 || \
635 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
636 sizeof(uint64_t) == sizeof(*(ptr)))
638 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
640 uint64_t *__ptr = (ptr); \
641 CTASSERT(((access) & CTLTYPE) == 0 || \
642 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
643 sysctl_add_oid(ctx, parent, nbr, name, \
644 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
645 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
648 /* Oid for a CPU dependent variable */
649 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
651 struct sysctl_oid *__ret; \
652 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
653 sizeof(unsigned) == sizeof(*(ptr))) && \
654 ((access) & CTLTYPE) == 0); \
655 if (sizeof(uint64_t) == sizeof(*(ptr))) { \
656 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
657 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
658 (ptr), 0, sysctl_handle_64, "QU", \
659 __DESCR(descr), NULL); \
661 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
662 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
663 (ptr), 0, sysctl_handle_int, "IU", \
664 __DESCR(descr), NULL); \
669 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
670 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
671 SYSCTL_OID(parent, nbr, name, \
672 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
673 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
674 CTASSERT((((access) & CTLTYPE) == 0 || \
675 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
676 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
677 sizeof(uint64_t) == sizeof(**(ptr)))
679 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
681 counter_u64_t *__ptr = (ptr); \
682 CTASSERT(((access) & CTLTYPE) == 0 || \
683 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
684 sysctl_add_oid(ctx, parent, nbr, name, \
685 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
686 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \
690 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */
691 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \
692 SYSCTL_OID(parent, nbr, name, \
693 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
694 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \
695 CTASSERT((((access) & CTLTYPE) == 0 || \
696 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \
697 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
698 sizeof(uint64_t) == sizeof(**(ptr)))
700 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \
703 counter_u64_t *__ptr = (ptr); \
704 CTASSERT(((access) & CTLTYPE) == 0 || \
705 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
706 sysctl_add_oid(ctx, parent, nbr, name, \
707 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
708 __ptr, len, sysctl_handle_counter_u64_array, "S", \
709 __DESCR(descr), NULL); \
712 /* Oid for an opaque object. Specified by a pointer and a length. */
713 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
714 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
715 ptr, len, sysctl_handle_opaque, fmt, descr); \
716 CTASSERT(((access) & CTLTYPE) == 0 || \
717 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
719 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
721 CTASSERT(((access) & CTLTYPE) == 0 || \
722 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
723 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
724 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \
727 /* Oid for a struct. Specified by a pointer and a type. */
728 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
729 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
730 ptr, sizeof(struct type), sysctl_handle_opaque, \
731 "S," #type, descr); \
732 CTASSERT(((access) & CTLTYPE) == 0 || \
733 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
735 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
737 CTASSERT(((access) & CTLTYPE) == 0 || \
738 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
739 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
740 (ptr), sizeof(struct type), \
741 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \
744 /* Oid for a procedure. Specified by a pointer and an arg. */
745 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
746 SYSCTL_OID(parent, nbr, name, (access), \
747 ptr, arg, handler, fmt, descr); \
748 CTASSERT(((access) & CTLTYPE) != 0)
750 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
752 CTASSERT(((access) & CTLTYPE) != 0); \
753 sysctl_add_oid(ctx, parent, nbr, name, (access), \
754 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \
757 /* Oid to handle limits on uma(9) zone specified by pointer. */
758 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
759 SYSCTL_OID(parent, nbr, name, \
760 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
761 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
762 CTASSERT(((access) & CTLTYPE) == 0 || \
763 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
765 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
767 uma_zone_t __ptr = (ptr); \
768 CTASSERT(((access) & CTLTYPE) == 0 || \
769 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
770 sysctl_add_oid(ctx, parent, nbr, name, \
771 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
772 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \
776 /* Oid to obtain current use of uma(9) zone specified by pointer. */
777 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
778 SYSCTL_OID(parent, nbr, name, \
779 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
780 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
781 CTASSERT(((access) & CTLTYPE) == 0 || \
782 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
784 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
786 uma_zone_t __ptr = (ptr); \
787 CTASSERT(((access) & CTLTYPE) == 0 || \
788 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
789 sysctl_add_oid(ctx, parent, nbr, name, \
790 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
791 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \
796 * A macro to generate a read-only sysctl to indicate the presence of optional
799 #define FEATURE(name, desc) \
800 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \
801 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature")
806 * Top-level identifiers
808 #define CTL_UNSPEC 0 /* unused */
809 #define CTL_KERN 1 /* "high kernel": proc, limits */
810 #define CTL_VM 2 /* virtual memory */
811 #define CTL_VFS 3 /* filesystem, mount type is next */
812 #define CTL_NET 4 /* network, see socket.h */
813 #define CTL_DEBUG 5 /* debugging parameters */
814 #define CTL_HW 6 /* generic cpu/io */
815 #define CTL_MACHDEP 7 /* machine dependent */
816 #define CTL_USER 8 /* user-level */
817 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
820 * CTL_KERN identifiers
822 #define KERN_OSTYPE 1 /* string: system version */
823 #define KERN_OSRELEASE 2 /* string: system release */
824 #define KERN_OSREV 3 /* int: system revision */
825 #define KERN_VERSION 4 /* string: compile time info */
826 #define KERN_MAXVNODES 5 /* int: max vnodes */
827 #define KERN_MAXPROC 6 /* int: max processes */
828 #define KERN_MAXFILES 7 /* int: max open files */
829 #define KERN_ARGMAX 8 /* int: max arguments to exec */
830 #define KERN_SECURELVL 9 /* int: system security level */
831 #define KERN_HOSTNAME 10 /* string: hostname */
832 #define KERN_HOSTID 11 /* int: host identifier */
833 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
834 #define KERN_VNODE 13 /* struct: vnode structures */
835 #define KERN_PROC 14 /* struct: process entries */
836 #define KERN_FILE 15 /* struct: file entries */
837 #define KERN_PROF 16 /* node: kernel profiling info */
838 #define KERN_POSIX1 17 /* int: POSIX.1 version */
839 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
840 #define KERN_JOB_CONTROL 19 /* int: is job control available */
841 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
842 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
843 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
844 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
845 #define KERN_OSRELDATE 24 /* int: kernel release date */
846 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
847 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
848 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
849 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
850 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
851 #define KERN_IPC 30 /* node: anything related to IPC */
852 #define KERN_DUMMY 31 /* unused */
853 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
854 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
855 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
856 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
857 #define KERN_HOSTUUID 36 /* string: host UUID identifier */
858 #define KERN_ARND 37 /* int: from arc4rand() */
859 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */
863 #define KERN_PROC_ALL 0 /* everything */
864 #define KERN_PROC_PID 1 /* by process id */
865 #define KERN_PROC_PGRP 2 /* by process group id */
866 #define KERN_PROC_SESSION 3 /* by session of pid */
867 #define KERN_PROC_TTY 4 /* by controlling tty */
868 #define KERN_PROC_UID 5 /* by effective uid */
869 #define KERN_PROC_RUID 6 /* by real uid */
870 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
871 #define KERN_PROC_PROC 8 /* only return procs */
872 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */
873 #define KERN_PROC_RGID 10 /* by real group id */
874 #define KERN_PROC_GID 11 /* by effective group id */
875 #define KERN_PROC_PATHNAME 12 /* path to executable */
876 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
877 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
878 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
879 #define KERN_PROC_INC_THREAD 0x10 /*
880 * modifier for pid, pgrp, tty,
881 * uid, ruid, gid, rgid and proc
882 * This effectively uses 16-31
884 #define KERN_PROC_VMMAP 32 /* VM map entries for process */
885 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */
886 #define KERN_PROC_GROUPS 34 /* process groups */
887 #define KERN_PROC_ENV 35 /* get environment */
888 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
889 #define KERN_PROC_RLIMIT 37 /* process resource limits */
890 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
891 #define KERN_PROC_UMASK 39 /* process umask */
892 #define KERN_PROC_OSREL 40 /* osreldate for process binary */
893 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
894 #define KERN_PROC_CWD 42 /* process current working directory */
895 #define KERN_PROC_NFDS 43 /* number of open file descriptors */
898 * KERN_IPC identifiers
900 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
901 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
902 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
903 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
904 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
905 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
906 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
911 #define HW_MACHINE 1 /* string: machine class */
912 #define HW_MODEL 2 /* string: specific machine model */
913 #define HW_NCPU 3 /* int: number of cpus */
914 #define HW_BYTEORDER 4 /* int: machine byte order */
915 #define HW_PHYSMEM 5 /* int: total memory */
916 #define HW_USERMEM 6 /* int: non-kernel memory */
917 #define HW_PAGESIZE 7 /* int: software page size */
918 #define HW_DISKNAMES 8 /* strings: disk drive names */
919 #define HW_DISKSTATS 9 /* struct: diskstats[] */
920 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
921 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
922 #define HW_REALMEM 12 /* int: 'real' memory */
925 * CTL_USER definitions
927 #define USER_CS_PATH 1 /* string: _CS_PATH */
928 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
929 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
930 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
931 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
932 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
933 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
934 #define USER_LINE_MAX 8 /* int: LINE_MAX */
935 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
936 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
937 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
938 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
939 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
940 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
941 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
942 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
943 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
944 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
945 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
946 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
948 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
949 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
950 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
951 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
952 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
953 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
954 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
955 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
956 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
957 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
958 #define CTL_P1003_1B_FSYNC 11 /* boolean */
959 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
960 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
961 #define CTL_P1003_1B_TIMERS 14 /* boolean */
962 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
963 #define CTL_P1003_1B_AIO_MAX 16 /* int */
964 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
965 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
966 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
967 #define CTL_P1003_1B_PAGESIZE 20 /* int */
968 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
969 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
970 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
971 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
972 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
974 #define CTL_P1003_1B_MAXID 26
979 * Declare some common oids.
981 extern struct sysctl_oid_list sysctl__children;
983 SYSCTL_DECL(_kern_features);
984 SYSCTL_DECL(_kern_ipc);
985 SYSCTL_DECL(_kern_proc);
986 SYSCTL_DECL(_kern_sched);
987 SYSCTL_DECL(_kern_sched_stats);
988 SYSCTL_DECL(_sysctl);
990 SYSCTL_DECL(_vm_stats);
991 SYSCTL_DECL(_vm_stats_misc);
995 SYSCTL_DECL(_debug_sizeof);
998 SYSCTL_DECL(_hw_bus);
999 SYSCTL_DECL(_hw_bus_devices);
1000 SYSCTL_DECL(_hw_bus_info);
1001 SYSCTL_DECL(_machdep);
1003 SYSCTL_DECL(_compat);
1004 SYSCTL_DECL(_regression);
1005 SYSCTL_DECL(_security);
1006 SYSCTL_DECL(_security_bsd);
1007 #ifdef EXT_RESOURCES
1008 SYSCTL_DECL(_clock);
1011 extern char machine[];
1012 extern char osrelease[];
1013 extern char ostype[];
1014 extern char kern_ident[];
1016 /* Dynamic oid handling */
1017 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
1018 struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
1019 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
1020 const char *fmt, const char *descr, const char *label);
1021 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
1023 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
1024 int sysctl_move_oid(struct sysctl_oid *oidp,
1025 struct sysctl_oid_list *parent);
1026 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
1027 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
1028 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
1029 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
1030 struct sysctl_oid *oidp);
1031 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
1032 struct sysctl_oid *oidp);
1033 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
1034 struct sysctl_oid *oidp);
1036 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1037 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1039 int kernel_sysctlbyname(struct thread *td, char *name, void *old,
1040 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1042 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1043 size_t *oldlenp, int inkernel, void *new, size_t newlen,
1044 size_t *retval, int flags);
1045 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
1046 int *nindx, struct sysctl_req *req);
1047 void sysctl_wlock(void);
1048 void sysctl_wunlock(void);
1049 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
1052 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
1053 struct sysctl_req *);
1054 #else /* !_KERNEL */
1055 #include <sys/cdefs.h>
1058 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1059 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
1060 int sysctlnametomib(const char *, int *, size_t *);
1062 #endif /* _KERNEL */
1064 #endif /* !_SYS_SYSCTL_H_ */