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_DORMANT 0x20000000 /* This sysctl is not active yet */
87 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
88 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
89 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
90 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
91 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
92 #define CTLMASK_SECURE 0x00F00000 /* Secure level */
93 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */
94 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN)
95 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN)
96 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */
97 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */
98 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
99 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */
100 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */
101 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */
102 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */
103 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
106 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
108 * Secure when the securelevel is raised to at least N.
110 #define CTLSHIFT_SECURE 20
111 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
112 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
113 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
116 * USE THIS instead of a hardwired number from the categories below
117 * to get dynamically assigned sysctl entries using the linker-set
118 * technology. This is the way nearly all new sysctl variables should
120 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
122 #define OID_AUTO (-1)
125 * The starting number for dynamically-assigned entries. WARNING!
126 * ALL static sysctl entries should have numbers LESS than this!
128 #define CTL_AUTO_START 0x100
131 #include <sys/linker_set.h>
134 /* XXX allow overspecification of type in external kernel modules */
135 #define SYSCTL_CT_ASSERT_MASK CTLTYPE
137 #define SYSCTL_CT_ASSERT_MASK 0
140 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
141 intmax_t arg2, struct sysctl_req *req
143 /* definitions for sysctl_req 'lock' member */
144 #define REQ_UNWIRED 1
147 /* definitions for sysctl_req 'flags' member */
148 #if defined(__amd64__) || defined(__powerpc64__) ||\
149 (defined(__mips__) && defined(__mips_n64))
150 #define SCTL_MASK32 1 /* 32 bit emulation */
154 * This describes the access space for a sysctl request. This is needed
155 * so that we can use the interface from the kernel or from user-space.
158 struct thread *td; /* used for access checking */
159 int lock; /* wiring state */
163 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
167 int (*newfunc)(struct sysctl_req *, void *, size_t);
172 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
175 * This describes one "oid" in the MIB tree. Potentially more nodes can
176 * be hidden behind it, expanded by the handler.
179 struct sysctl_oid_list oid_children;
180 struct sysctl_oid_list *oid_parent;
181 SLIST_ENTRY(sysctl_oid) oid_link;
186 const char *oid_name;
187 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
191 const char *oid_descr;
192 const char *oid_label;
195 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
196 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
197 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
199 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS);
200 int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
201 int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
202 int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
203 int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
204 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
205 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
206 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
207 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
208 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
209 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
210 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS);
212 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
213 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
215 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
216 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
217 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
220 * These functions are used to add/remove an oid from the mib.
222 void sysctl_register_oid(struct sysctl_oid *oidp);
223 void sysctl_register_disabled_oid(struct sysctl_oid *oidp);
224 void sysctl_enable_oid(struct sysctl_oid *oidp);
225 void sysctl_unregister_oid(struct sysctl_oid *oidp);
227 /* Declare a static oid to allow child oids to be added to it. */
228 #define SYSCTL_DECL(name) \
229 extern struct sysctl_oid sysctl__##name
231 /* Hide these in macros. */
232 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
233 #define SYSCTL_PARENT(oid_ptr) \
234 (((oid_ptr)->oid_parent != &sysctl__children) ? \
235 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
236 oid_children) : (struct sysctl_oid *)NULL)
237 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
239 /* === Structs and macros related to context handling. === */
241 /* All dynamically created sysctls can be tracked in a context list. */
242 struct sysctl_ctx_entry {
243 struct sysctl_oid *entry;
244 TAILQ_ENTRY(sysctl_ctx_entry) link;
247 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
249 #define SYSCTL_NODE_CHILDREN(parent, name) \
250 sysctl__##parent##_##name.oid_children
252 #ifndef NO_SYSCTL_DESCR
255 #define __DESCR(d) ""
258 /* This macro is only for internal use */
259 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
260 struct sysctl_oid id = { \
261 .oid_parent = (parent_child_head), \
262 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \
263 .oid_number = (nbr), \
264 .oid_kind = (kind), \
267 .oid_name = (name), \
268 .oid_handler = (handler), \
270 .oid_descr = __DESCR(descr), \
271 .oid_label = (label), \
273 DATA_SET(sysctl_set, id)
275 /* This constructs a static "raw" MIB oid. */
276 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
277 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \
278 handler, fmt, descr, NULL)
280 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
281 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
282 SYSCTL_CHILDREN(&sysctl__##parent), \
283 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
285 /* This constructs a global "raw" MIB oid. */
286 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
287 SYSCTL_OID_RAW(sysctl__##parent##_##name, \
288 SYSCTL_CHILDREN(&sysctl__##parent), \
289 nbr, #name, kind, a1, a2, handler, fmt, descr, label)
291 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
292 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL)
294 /* This constructs a root node from which other nodes can hang. */
295 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
296 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
297 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
298 handler, "N", descr, NULL); \
299 CTASSERT(((access) & CTLTYPE) == 0 || \
300 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
302 /* This constructs a node from which other oids can hang. */
303 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
304 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL)
306 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \
307 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
308 NULL, 0, handler, "N", descr, label); \
309 CTASSERT(((access) & CTLTYPE) == 0 || \
310 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
312 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
313 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \
314 handler, descr, NULL)
316 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \
318 CTASSERT(((access) & CTLTYPE) == 0 || \
319 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
320 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
321 NULL, 0, handler, "N", __DESCR(descr), label); \
324 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
326 CTASSERT(((access) & CTLTYPE) == 0 || \
327 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
328 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
329 CTLTYPE_NODE|(access), \
330 NULL, 0, handler, "N", __DESCR(descr), NULL); \
333 /* Oid for a string. len can be 0 to indicate '\0' termination. */
334 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
335 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
336 arg, len, sysctl_handle_string, "A", descr); \
337 CTASSERT(((access) & CTLTYPE) == 0 || \
338 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
340 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
342 char *__arg = (arg); \
343 CTASSERT(((access) & CTLTYPE) == 0 || \
344 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
345 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
346 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \
350 /* Oid for a bool. If ptr is NULL, val is returned. */
351 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL)
352 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \
353 SYSCTL_OID(parent, nbr, name, \
354 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
355 ptr, val, sysctl_handle_bool, "CU", descr); \
356 CTASSERT(((access) & CTLTYPE) == 0 && \
357 sizeof(bool) == sizeof(*(ptr)))
359 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \
361 bool *__ptr = (ptr); \
362 CTASSERT(((access) & CTLTYPE) == 0); \
363 sysctl_add_oid(ctx, parent, nbr, name, \
364 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
365 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \
369 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
370 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
371 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
372 SYSCTL_OID(parent, nbr, name, \
373 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
374 ptr, val, sysctl_handle_8, "C", descr); \
375 CTASSERT((((access) & CTLTYPE) == 0 || \
376 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
377 sizeof(int8_t) == sizeof(*(ptr)))
379 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
381 int8_t *__ptr = (ptr); \
382 CTASSERT(((access) & CTLTYPE) == 0 || \
383 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
384 sysctl_add_oid(ctx, parent, nbr, name, \
385 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
386 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \
389 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
390 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
391 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
392 SYSCTL_OID(parent, nbr, name, \
393 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
394 ptr, val, sysctl_handle_8, "CU", descr); \
395 CTASSERT((((access) & CTLTYPE) == 0 || \
396 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
397 sizeof(uint8_t) == sizeof(*(ptr)))
399 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
401 uint8_t *__ptr = (ptr); \
402 CTASSERT(((access) & CTLTYPE) == 0 || \
403 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
404 sysctl_add_oid(ctx, parent, nbr, name, \
405 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
406 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \
409 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
410 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
411 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
412 SYSCTL_OID(parent, nbr, name, \
413 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
414 ptr, val, sysctl_handle_16, "S", descr); \
415 CTASSERT((((access) & CTLTYPE) == 0 || \
416 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
417 sizeof(int16_t) == sizeof(*(ptr)))
419 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
421 int16_t *__ptr = (ptr); \
422 CTASSERT(((access) & CTLTYPE) == 0 || \
423 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
424 sysctl_add_oid(ctx, parent, nbr, name, \
425 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
426 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \
429 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
430 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
431 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
432 SYSCTL_OID(parent, nbr, name, \
433 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
434 ptr, val, sysctl_handle_16, "SU", descr); \
435 CTASSERT((((access) & CTLTYPE) == 0 || \
436 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
437 sizeof(uint16_t) == sizeof(*(ptr)))
439 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
441 uint16_t *__ptr = (ptr); \
442 CTASSERT(((access) & CTLTYPE) == 0 || \
443 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
444 sysctl_add_oid(ctx, parent, nbr, name, \
445 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
446 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \
449 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
450 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
451 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
452 SYSCTL_OID(parent, nbr, name, \
453 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
454 ptr, val, sysctl_handle_32, "I", descr); \
455 CTASSERT((((access) & CTLTYPE) == 0 || \
456 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
457 sizeof(int32_t) == sizeof(*(ptr)))
459 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
461 int32_t *__ptr = (ptr); \
462 CTASSERT(((access) & CTLTYPE) == 0 || \
463 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
464 sysctl_add_oid(ctx, parent, nbr, name, \
465 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
466 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \
469 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
470 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
471 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
472 SYSCTL_OID(parent, nbr, name, \
473 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
474 ptr, val, sysctl_handle_32, "IU", descr); \
475 CTASSERT((((access) & CTLTYPE) == 0 || \
476 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
477 sizeof(uint32_t) == sizeof(*(ptr)))
479 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
481 uint32_t *__ptr = (ptr); \
482 CTASSERT(((access) & CTLTYPE) == 0 || \
483 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
484 sysctl_add_oid(ctx, parent, nbr, name, \
485 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
486 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \
489 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
490 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
491 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
492 SYSCTL_OID(parent, nbr, name, \
493 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
494 ptr, val, sysctl_handle_64, "Q", descr); \
495 CTASSERT((((access) & CTLTYPE) == 0 || \
496 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
497 sizeof(int64_t) == sizeof(*(ptr)))
499 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
501 int64_t *__ptr = (ptr); \
502 CTASSERT(((access) & CTLTYPE) == 0 || \
503 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
504 sysctl_add_oid(ctx, parent, nbr, name, \
505 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
506 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
509 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
510 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
511 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
512 SYSCTL_OID(parent, nbr, name, \
513 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
514 ptr, val, sysctl_handle_64, "QU", descr); \
515 CTASSERT((((access) & CTLTYPE) == 0 || \
516 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
517 sizeof(uint64_t) == sizeof(*(ptr)))
519 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
521 uint64_t *__ptr = (ptr); \
522 CTASSERT(((access) & CTLTYPE) == 0 || \
523 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
524 sysctl_add_oid(ctx, parent, nbr, name, \
525 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
526 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
529 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
530 #define SYSCTL_NULL_INT_PTR ((int *)NULL)
531 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
532 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL)
534 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \
535 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \
536 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
537 ptr, val, sysctl_handle_int, "I", descr, label); \
538 CTASSERT((((access) & CTLTYPE) == 0 || \
539 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
540 sizeof(int) == sizeof(*(ptr)))
542 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
544 int *__ptr = (ptr); \
545 CTASSERT(((access) & CTLTYPE) == 0 || \
546 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
547 sysctl_add_oid(ctx, parent, nbr, name, \
548 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
549 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \
552 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
553 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
554 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
555 SYSCTL_OID(parent, nbr, name, \
556 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
557 ptr, val, sysctl_handle_int, "IU", descr); \
558 CTASSERT((((access) & CTLTYPE) == 0 || \
559 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
560 sizeof(unsigned) == sizeof(*(ptr)))
562 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
564 unsigned *__ptr = (ptr); \
565 CTASSERT(((access) & CTLTYPE) == 0 || \
566 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
567 sysctl_add_oid(ctx, parent, nbr, name, \
568 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
569 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \
572 /* Oid for a long. The pointer must be non NULL. */
573 #define SYSCTL_NULL_LONG_PTR ((long *)NULL)
574 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
575 SYSCTL_OID(parent, nbr, name, \
576 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
577 ptr, val, sysctl_handle_long, "L", descr); \
578 CTASSERT((((access) & CTLTYPE) == 0 || \
579 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
580 sizeof(long) == sizeof(*(ptr)))
582 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
584 long *__ptr = (ptr); \
585 CTASSERT(((access) & CTLTYPE) == 0 || \
586 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
587 sysctl_add_oid(ctx, parent, nbr, name, \
588 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
589 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \
592 /* Oid for an unsigned long. The pointer must be non NULL. */
593 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
594 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
595 SYSCTL_OID(parent, nbr, name, \
596 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
597 ptr, val, sysctl_handle_long, "LU", descr); \
598 CTASSERT((((access) & CTLTYPE) == 0 || \
599 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
600 sizeof(unsigned long) == sizeof(*(ptr)))
602 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
604 unsigned long *__ptr = (ptr); \
605 CTASSERT(((access) & CTLTYPE) == 0 || \
606 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
607 sysctl_add_oid(ctx, parent, nbr, name, \
608 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
609 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \
612 /* Oid for a quad. The pointer must be non NULL. */
613 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
614 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
615 SYSCTL_OID(parent, nbr, name, \
616 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
617 ptr, val, sysctl_handle_64, "Q", descr); \
618 CTASSERT((((access) & CTLTYPE) == 0 || \
619 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
620 sizeof(int64_t) == sizeof(*(ptr)))
622 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
624 int64_t *__ptr = (ptr); \
625 CTASSERT(((access) & CTLTYPE) == 0 || \
626 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
627 sysctl_add_oid(ctx, parent, nbr, name, \
628 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
629 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
632 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
633 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
634 SYSCTL_OID(parent, nbr, name, \
635 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
636 ptr, val, sysctl_handle_64, "QU", descr); \
637 CTASSERT((((access) & CTLTYPE) == 0 || \
638 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
639 sizeof(uint64_t) == sizeof(*(ptr)))
641 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
643 uint64_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_64, "QU", __DESCR(descr), NULL); \
651 /* Oid for a CPU dependent variable */
652 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
654 struct sysctl_oid *__ret; \
655 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
656 sizeof(unsigned) == sizeof(*(ptr))) && \
657 ((access) & CTLTYPE) == 0); \
658 if (sizeof(uint64_t) == sizeof(*(ptr))) { \
659 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
660 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
661 (ptr), 0, sysctl_handle_64, "QU", \
662 __DESCR(descr), NULL); \
664 __ret = sysctl_add_oid(ctx, parent, nbr, name, \
665 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
666 (ptr), 0, sysctl_handle_int, "IU", \
667 __DESCR(descr), NULL); \
672 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
673 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
674 SYSCTL_OID(parent, nbr, name, \
675 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
676 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
677 CTASSERT((((access) & CTLTYPE) == 0 || \
678 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
679 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
680 sizeof(uint64_t) == sizeof(**(ptr)))
682 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
684 counter_u64_t *__ptr = (ptr); \
685 CTASSERT(((access) & CTLTYPE) == 0 || \
686 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
687 sysctl_add_oid(ctx, parent, nbr, name, \
688 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
689 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \
693 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */
694 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \
695 SYSCTL_OID(parent, nbr, name, \
696 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
697 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \
698 CTASSERT((((access) & CTLTYPE) == 0 || \
699 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \
700 sizeof(counter_u64_t) == sizeof(*(ptr)) && \
701 sizeof(uint64_t) == sizeof(**(ptr)))
703 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \
706 counter_u64_t *__ptr = (ptr); \
707 CTASSERT(((access) & CTLTYPE) == 0 || \
708 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
709 sysctl_add_oid(ctx, parent, nbr, name, \
710 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
711 __ptr, len, sysctl_handle_counter_u64_array, "S", \
712 __DESCR(descr), NULL); \
715 /* Oid for an opaque object. Specified by a pointer and a length. */
716 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
717 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
718 ptr, len, sysctl_handle_opaque, fmt, descr); \
719 CTASSERT(((access) & CTLTYPE) == 0 || \
720 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
722 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
724 CTASSERT(((access) & CTLTYPE) == 0 || \
725 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
726 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
727 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \
730 /* Oid for a struct. Specified by a pointer and a type. */
731 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
732 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
733 ptr, sizeof(struct type), sysctl_handle_opaque, \
734 "S," #type, descr); \
735 CTASSERT(((access) & CTLTYPE) == 0 || \
736 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
738 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
740 CTASSERT(((access) & CTLTYPE) == 0 || \
741 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
742 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
743 (ptr), sizeof(struct type), \
744 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \
747 /* Oid for a procedure. Specified by a pointer and an arg. */
748 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
749 SYSCTL_OID(parent, nbr, name, (access), \
750 ptr, arg, handler, fmt, descr); \
751 CTASSERT(((access) & CTLTYPE) != 0)
753 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
755 CTASSERT(((access) & CTLTYPE) != 0); \
756 sysctl_add_oid(ctx, parent, nbr, name, (access), \
757 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \
760 /* Oid to handle limits on uma(9) zone specified by pointer. */
761 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
762 SYSCTL_OID(parent, nbr, name, \
763 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
764 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
765 CTASSERT(((access) & CTLTYPE) == 0 || \
766 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
768 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
770 uma_zone_t __ptr = (ptr); \
771 CTASSERT(((access) & CTLTYPE) == 0 || \
772 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
773 sysctl_add_oid(ctx, parent, nbr, name, \
774 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
775 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \
779 /* Oid to obtain current use of uma(9) zone specified by pointer. */
780 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
781 SYSCTL_OID(parent, nbr, name, \
782 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
783 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
784 CTASSERT(((access) & CTLTYPE) == 0 || \
785 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
787 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
789 uma_zone_t __ptr = (ptr); \
790 CTASSERT(((access) & CTLTYPE) == 0 || \
791 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
792 sysctl_add_oid(ctx, parent, nbr, name, \
793 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
794 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \
799 * A macro to generate a read-only sysctl to indicate the presence of optional
802 #define FEATURE(name, desc) \
803 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \
804 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature")
809 * Top-level identifiers
811 #define CTL_UNSPEC 0 /* unused */
812 #define CTL_KERN 1 /* "high kernel": proc, limits */
813 #define CTL_VM 2 /* virtual memory */
814 #define CTL_VFS 3 /* filesystem, mount type is next */
815 #define CTL_NET 4 /* network, see socket.h */
816 #define CTL_DEBUG 5 /* debugging parameters */
817 #define CTL_HW 6 /* generic cpu/io */
818 #define CTL_MACHDEP 7 /* machine dependent */
819 #define CTL_USER 8 /* user-level */
820 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
823 * CTL_KERN identifiers
825 #define KERN_OSTYPE 1 /* string: system version */
826 #define KERN_OSRELEASE 2 /* string: system release */
827 #define KERN_OSREV 3 /* int: system revision */
828 #define KERN_VERSION 4 /* string: compile time info */
829 #define KERN_MAXVNODES 5 /* int: max vnodes */
830 #define KERN_MAXPROC 6 /* int: max processes */
831 #define KERN_MAXFILES 7 /* int: max open files */
832 #define KERN_ARGMAX 8 /* int: max arguments to exec */
833 #define KERN_SECURELVL 9 /* int: system security level */
834 #define KERN_HOSTNAME 10 /* string: hostname */
835 #define KERN_HOSTID 11 /* int: host identifier */
836 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
837 #define KERN_VNODE 13 /* struct: vnode structures */
838 #define KERN_PROC 14 /* struct: process entries */
839 #define KERN_FILE 15 /* struct: file entries */
840 #define KERN_PROF 16 /* node: kernel profiling info */
841 #define KERN_POSIX1 17 /* int: POSIX.1 version */
842 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
843 #define KERN_JOB_CONTROL 19 /* int: is job control available */
844 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
845 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
846 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
847 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
848 #define KERN_OSRELDATE 24 /* int: kernel release date */
849 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
850 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
851 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
852 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
853 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
854 #define KERN_IPC 30 /* node: anything related to IPC */
855 #define KERN_DUMMY 31 /* unused */
856 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
857 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
858 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
859 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
860 #define KERN_HOSTUUID 36 /* string: host UUID identifier */
861 #define KERN_ARND 37 /* int: from arc4rand() */
862 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */
866 #define KERN_PROC_ALL 0 /* everything */
867 #define KERN_PROC_PID 1 /* by process id */
868 #define KERN_PROC_PGRP 2 /* by process group id */
869 #define KERN_PROC_SESSION 3 /* by session of pid */
870 #define KERN_PROC_TTY 4 /* by controlling tty */
871 #define KERN_PROC_UID 5 /* by effective uid */
872 #define KERN_PROC_RUID 6 /* by real uid */
873 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
874 #define KERN_PROC_PROC 8 /* only return procs */
875 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */
876 #define KERN_PROC_RGID 10 /* by real group id */
877 #define KERN_PROC_GID 11 /* by effective group id */
878 #define KERN_PROC_PATHNAME 12 /* path to executable */
879 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
880 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
881 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
882 #define KERN_PROC_INC_THREAD 0x10 /*
883 * modifier for pid, pgrp, tty,
884 * uid, ruid, gid, rgid and proc
885 * This effectively uses 16-31
887 #define KERN_PROC_VMMAP 32 /* VM map entries for process */
888 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */
889 #define KERN_PROC_GROUPS 34 /* process groups */
890 #define KERN_PROC_ENV 35 /* get environment */
891 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
892 #define KERN_PROC_RLIMIT 37 /* process resource limits */
893 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
894 #define KERN_PROC_UMASK 39 /* process umask */
895 #define KERN_PROC_OSREL 40 /* osreldate for process binary */
896 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
897 #define KERN_PROC_CWD 42 /* process current working directory */
898 #define KERN_PROC_NFDS 43 /* number of open file descriptors */
901 * KERN_IPC identifiers
903 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
904 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
905 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
906 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
907 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
908 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
909 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
914 #define HW_MACHINE 1 /* string: machine class */
915 #define HW_MODEL 2 /* string: specific machine model */
916 #define HW_NCPU 3 /* int: number of cpus */
917 #define HW_BYTEORDER 4 /* int: machine byte order */
918 #define HW_PHYSMEM 5 /* int: total memory */
919 #define HW_USERMEM 6 /* int: non-kernel memory */
920 #define HW_PAGESIZE 7 /* int: software page size */
921 #define HW_DISKNAMES 8 /* strings: disk drive names */
922 #define HW_DISKSTATS 9 /* struct: diskstats[] */
923 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
924 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
925 #define HW_REALMEM 12 /* int: 'real' memory */
928 * CTL_USER definitions
930 #define USER_CS_PATH 1 /* string: _CS_PATH */
931 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
932 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
933 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
934 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
935 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
936 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
937 #define USER_LINE_MAX 8 /* int: LINE_MAX */
938 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
939 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
940 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
941 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
942 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
943 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
944 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
945 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
946 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
947 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
948 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
949 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
951 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
952 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
953 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
954 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
955 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
956 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
957 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
958 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
959 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
960 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
961 #define CTL_P1003_1B_FSYNC 11 /* boolean */
962 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
963 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
964 #define CTL_P1003_1B_TIMERS 14 /* boolean */
965 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
966 #define CTL_P1003_1B_AIO_MAX 16 /* int */
967 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
968 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
969 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
970 #define CTL_P1003_1B_PAGESIZE 20 /* int */
971 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
972 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
973 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
974 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
975 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
977 #define CTL_P1003_1B_MAXID 26
982 * Declare some common oids.
984 extern struct sysctl_oid_list sysctl__children;
986 SYSCTL_DECL(_kern_features);
987 SYSCTL_DECL(_kern_ipc);
988 SYSCTL_DECL(_kern_proc);
989 SYSCTL_DECL(_kern_sched);
990 SYSCTL_DECL(_kern_sched_stats);
991 SYSCTL_DECL(_sysctl);
993 SYSCTL_DECL(_vm_stats);
994 SYSCTL_DECL(_vm_stats_misc);
998 SYSCTL_DECL(_debug_sizeof);
1001 SYSCTL_DECL(_hw_bus);
1002 SYSCTL_DECL(_hw_bus_devices);
1003 SYSCTL_DECL(_hw_bus_info);
1004 SYSCTL_DECL(_machdep);
1006 SYSCTL_DECL(_compat);
1007 SYSCTL_DECL(_regression);
1008 SYSCTL_DECL(_security);
1009 SYSCTL_DECL(_security_bsd);
1010 #ifdef EXT_RESOURCES
1011 SYSCTL_DECL(_clock);
1014 extern char machine[];
1015 extern char osrelease[];
1016 extern char ostype[];
1017 extern char kern_ident[];
1019 /* Dynamic oid handling */
1020 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
1021 struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
1022 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
1023 const char *fmt, const char *descr, const char *label);
1024 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
1026 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
1027 int sysctl_move_oid(struct sysctl_oid *oidp,
1028 struct sysctl_oid_list *parent);
1029 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
1030 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
1031 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
1032 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
1033 struct sysctl_oid *oidp);
1034 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
1035 struct sysctl_oid *oidp);
1036 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
1037 struct sysctl_oid *oidp);
1039 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1040 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1042 int kernel_sysctlbyname(struct thread *td, char *name, void *old,
1043 size_t *oldlenp, void *new, size_t newlen, size_t *retval,
1045 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
1046 size_t *oldlenp, int inkernel, void *new, size_t newlen,
1047 size_t *retval, int flags);
1048 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
1049 int *nindx, struct sysctl_req *req);
1050 void sysctl_wlock(void);
1051 void sysctl_wunlock(void);
1052 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
1055 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
1056 struct sysctl_req *);
1057 #else /* !_KERNEL */
1058 #include <sys/cdefs.h>
1061 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1062 int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
1063 int sysctlnametomib(const char *, int *, size_t *);
1065 #endif /* _KERNEL */
1067 #endif /* !_SYS_SYSCTL_H_ */