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freebsd-dev/sys/sys/sysctl.h
Mateusz Guzik 62a573d953 vfs: retire KERN_VNODE 
It got disabled in 2003:

commit acb18acfec
Author: Poul-Henning Kamp <phk@FreeBSD.org>
Date:   Sun Feb 23 18:09:05 2003 +0000

    Bracket the kern.vnode sysctl in #ifdef notyet because it results
    in massive locking issues on diskless systems.

    It is also not clear that this sysctl is non-dangerous in its
    requirements for locked down memory on large RAM systems.

There does not seem to be practical use for it and the disabled routine
does not work anyway.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D39127
2023-03-17 16:21:45 +00:00

1215 lines
49 KiB
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Mike Karels at Berkeley Software Design, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)sysctl.h 8.1 (Berkeley) 6/2/93
* $FreeBSD$
*/
#ifndef _SYS_SYSCTL_H_
#define _SYS_SYSCTL_H_
#ifdef _KERNEL
#include <sys/queue.h>
#include <sys/tree.h>
#endif
/*
* Definitions for sysctl call. The sysctl call uses a hierarchical name
* for objects that can be examined or modified. The name is expressed as
* a sequence of integers. Like a file path name, the meaning of each
* component depends on its place in the hierarchy. The top-level and kern
* identifiers are defined here, and other identifiers are defined in the
* respective subsystem header files.
*
* Each subsystem defined by sysctl defines a list of variables for that
* subsystem. Each name is either a node with further levels defined below it,
* or it is a leaf of some particular type given below. Each sysctl level
* defines a set of name/type pairs to be used by sysctl(8) in manipulating the
* subsystem.
*/
#define CTL_MAXNAME 24 /* largest number of components supported */
#define CTLTYPE 0xf /* mask for the type */
#define CTLTYPE_NODE 1 /* name is a node */
#define CTLTYPE_INT 2 /* name describes an integer */
#define CTLTYPE_STRING 3 /* name describes a string */
#define CTLTYPE_S64 4 /* name describes a signed 64-bit number */
#define CTLTYPE_OPAQUE 5 /* name describes a structure */
#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
#define CTLTYPE_UINT 6 /* name describes an unsigned integer */
#define CTLTYPE_LONG 7 /* name describes a long */
#define CTLTYPE_ULONG 8 /* name describes an unsigned long */
#define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */
#define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */
#define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */
#define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */
#define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */
#define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */
#define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */
#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
#define CTLFLAG_DORMANT 0x20000000 /* This sysctl is not active yet */
#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
#define CTLMASK_SECURE 0x00F00000 /* Secure level */
#define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */
#define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN)
#define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN)
#define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */
#define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */
#define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
#define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */
#define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */
#define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */
#define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */
#define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR)
/*
* This is transient flag to be used until all sysctl handlers are converted
* to not lock Giant.
* One, and only one of CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT is required
* for SYSCTL_PROC and SYSCTL_NODE.
*/
#define CTLFLAG_NEEDGIANT 0x00000800 /* Handler require Giant */
/*
* Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
*
* Secure when the securelevel is raised to at least N.
*/
#define CTLSHIFT_SECURE 20
#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
/*
* USE THIS instead of a hardwired number from the categories below
* to get dynamically assigned sysctl entries using the linker-set
* technology. This is the way nearly all new sysctl variables should
* be implemented.
* e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
*/
#define OID_AUTO (-1)
/*
* The starting number for dynamically-assigned entries. WARNING!
* ALL static sysctl entries should have numbers LESS than this!
*/
#define CTL_AUTO_START 0x100
#ifdef _KERNEL
#include <sys/linker_set.h>
#ifdef KLD_MODULE
/* XXX allow overspecification of type in external kernel modules */
#define SYSCTL_CT_ASSERT_MASK CTLTYPE
#else
#define SYSCTL_CT_ASSERT_MASK 0
#endif
#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
intmax_t arg2, struct sysctl_req *req
/* definitions for sysctl_req 'lock' member */
#define REQ_UNWIRED 1
#define REQ_WIRED 2
/* definitions for sysctl_req 'flags' member */
#ifdef COMPAT_FREEBSD32
#define SCTL_MASK32 1 /* 32 bit emulation */
#endif
/*
* This describes the access space for a sysctl request. This is needed
* so that we can use the interface from the kernel or from user-space.
*/
struct thread;
struct sysctl_req {
struct thread *td; /* used for access checking */
int lock; /* wiring state */
void *oldptr;
size_t oldlen;
size_t oldidx;
int (*oldfunc)(struct sysctl_req *, const void *, size_t);
const void *newptr;
size_t newlen;
size_t newidx;
int (*newfunc)(struct sysctl_req *, void *, size_t);
size_t validlen;
int flags;
};
struct sysctl_oid;
/* RB Tree handling */
RB_HEAD(sysctl_oid_list, sysctl_oid);
/*
* This describes one "oid" in the MIB tree. Potentially more nodes can
* be hidden behind it, expanded by the handler.
*/
struct sysctl_oid {
struct sysctl_oid_list oid_children;
struct sysctl_oid_list* oid_parent;
RB_ENTRY(sysctl_oid) oid_link;
/* Sort key for all siblings, and lookup key for userland */
int oid_number;
u_int oid_kind;
void *oid_arg1;
intmax_t oid_arg2;
/* Must be unique amongst all siblings. */
const char *oid_name;
int (*oid_handler)(SYSCTL_HANDLER_ARGS);
const char *oid_fmt;
int oid_refcnt;
u_int oid_running;
const char *oid_descr;
const char *oid_label;
};
static inline int
cmp_sysctl_oid(struct sysctl_oid *a, struct sysctl_oid *b)
{
if (a->oid_number > b->oid_number)
return (1);
else if (a->oid_number < b->oid_number)
return (-1);
else
return (0);
}
RB_PROTOTYPE(sysctl_oid_list, sysctl_oid, oid_link, cmp_sysctl_oid);
#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
#define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
int sysctl_handle_bool(SYSCTL_HANDLER_ARGS);
int sysctl_handle_8(SYSCTL_HANDLER_ARGS);
int sysctl_handle_16(SYSCTL_HANDLER_ARGS);
int sysctl_handle_32(SYSCTL_HANDLER_ARGS);
int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS);
int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS);
int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS);
int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS);
int sysctl_msec_to_sbintime(SYSCTL_HANDLER_ARGS);
int sysctl_usec_to_sbintime(SYSCTL_HANDLER_ARGS);
int sysctl_sec_to_timeval(SYSCTL_HANDLER_ARGS);
int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS);
int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS);
int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS);
/*
* These functions are used to add/remove an oid from the mib.
*/
void sysctl_register_oid(struct sysctl_oid *oidp);
void sysctl_register_disabled_oid(struct sysctl_oid *oidp);
void sysctl_enable_oid(struct sysctl_oid *oidp);
void sysctl_unregister_oid(struct sysctl_oid *oidp);
/* Declare a static oid to allow child oids to be added to it. */
#define SYSCTL_DECL(name) \
extern struct sysctl_oid sysctl__##name
/* Hide these in macros. */
#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children)
#define SYSCTL_PARENT(oid_ptr) \
(((oid_ptr)->oid_parent != &sysctl__children) ? \
__containerof((oid_ptr)->oid_parent, struct sysctl_oid, \
oid_children) : (struct sysctl_oid *)NULL)
#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children)
/* === Structs and macros related to context handling. === */
/* All dynamically created sysctls can be tracked in a context list. */
struct sysctl_ctx_entry {
struct sysctl_oid *entry;
TAILQ_ENTRY(sysctl_ctx_entry) link;
};
TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
#define SYSCTL_NODE_CHILDREN(parent, name) \
sysctl__##parent##_##name.oid_children
#ifndef NO_SYSCTL_DESCR
#define __DESCR(d) d
#else
#define __DESCR(d) ""
#endif
#ifdef notyet
#define SYSCTL_ENFORCE_FLAGS(x) \
_Static_assert((((x) & CTLFLAG_MPSAFE) != 0) ^ (((x) & CTLFLAG_NEEDGIANT) != 0), \
"Has to be either CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT")
#else
#define SYSCTL_ENFORCE_FLAGS(x)
#endif
/* This macro is only for internal use */
#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
struct sysctl_oid id = { \
.oid_parent = (parent_child_head), \
.oid_children = RB_INITIALIZER(&id.oid_children), \
.oid_number = (nbr), \
.oid_kind = (kind), \
.oid_arg1 = (a1), \
.oid_arg2 = (a2), \
.oid_name = (name), \
.oid_handler = (handler), \
.oid_fmt = (fmt), \
.oid_descr = __DESCR(descr), \
.oid_label = (label), \
}; \
DATA_SET(sysctl_set, id); \
SYSCTL_ENFORCE_FLAGS(kind)
/* This constructs a static "raw" MIB oid. */
#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \
handler, fmt, descr, NULL)
#define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
static SYSCTL_OID_RAW(sysctl__##parent##_##name, \
SYSCTL_CHILDREN(&sysctl__##parent), \
nbr, #name, kind, a1, a2, handler, fmt, descr, label)
/* This constructs a global "raw" MIB oid. */
#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \
SYSCTL_OID_RAW(sysctl__##parent##_##name, \
SYSCTL_CHILDREN(&sysctl__##parent), \
nbr, #name, kind, a1, a2, handler, fmt, descr, label)
#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
({ \
SYSCTL_ENFORCE_FLAGS(kind); \
sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2,handler, \
fmt, __DESCR(descr), NULL); \
})
/* This constructs a root node from which other nodes can hang. */
#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \
SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
handler, "N", descr, NULL); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
/* This constructs a node from which other oids can hang. */
#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL)
#define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \
SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", descr, label); \
SYSCTL_ENFORCE_FLAGS(access); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \
handler, descr, NULL)
#define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \
({ \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
SYSCTL_ENFORCE_FLAGS(access); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", __DESCR(descr), label); \
})
#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
SYSCTL_ENFORCE_FLAGS(access); \
sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", __DESCR(descr), NULL); \
})
/* Oid for a string. len can be 0 to indicate '\0' termination. */
#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_STRING | CTLFLAG_MPSAFE | (access), \
arg, len, sysctl_handle_string, "A", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
({ \
char *__arg = (arg); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_STRING | CTLFLAG_MPSAFE | (access), \
__arg, len, sysctl_handle_string, "A", __DESCR(descr), \
NULL); \
})
/* Oid for a constant '\0' terminated string. */
#define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING | CTLFLAG_MPSAFE | (access),\
__DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \
CTASSERT(!(access & CTLFLAG_WR)); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
#define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \
({ \
char *__arg = __DECONST(char *, arg); \
CTASSERT(!(access & CTLFLAG_WR)); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING | \
CTLFLAG_MPSAFE | (access), __arg, 0, sysctl_handle_string, "A",\
__DESCR(descr), NULL); \
})
/* Oid for a bool. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_BOOL_PTR ((bool *)NULL)
#define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_bool, "CU", descr); \
CTASSERT(((access) & CTLTYPE) == 0 && \
sizeof(bool) == sizeof(*(ptr)))
#define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
bool *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \
NULL); \
})
/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL)
#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_8, "C", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \
sizeof(int8_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int8_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \
})
/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL)
#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_8, "CU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \
sizeof(uint8_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
uint8_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \
})
/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL)
#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_16, "S", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \
sizeof(int16_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int16_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \
})
/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL)
#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_16, "SU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \
sizeof(uint16_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
uint16_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \
})
/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL)
#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_32, "I", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \
sizeof(int32_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int32_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \
})
/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL)
#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_32, "IU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \
sizeof(uint32_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
uint32_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \
})
/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL)
#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "Q", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
sizeof(int64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
})
/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL)
#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "QU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
sizeof(uint64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
uint64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
})
/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */
#define SYSCTL_NULL_INT_PTR ((int *)NULL)
#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL)
#define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \
SYSCTL_OID_WITH_LABEL(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_int, "I", descr, label); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \
sizeof(int) == sizeof(*(ptr)))
#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \
})
/* Oid for an unsigned int. If ptr is NULL, val is returned. */
#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL)
#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_int, "IU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \
sizeof(unsigned) == sizeof(*(ptr)))
#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
unsigned *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \
})
/* Oid for a long. The pointer must be non NULL. */
#define SYSCTL_NULL_LONG_PTR ((long *)NULL)
#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_long, "L", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \
sizeof(long) == sizeof(*(ptr)))
#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
({ \
long *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \
})
/* Oid for an unsigned long. The pointer must be non NULL. */
#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL)
#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_long, "LU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \
sizeof(unsigned long) == sizeof(*(ptr)))
#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
({ \
unsigned long *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \
})
/* Oid for a quad. The pointer must be non NULL. */
#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL)
#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "Q", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \
sizeof(int64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
({ \
int64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \
})
#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL)
#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "QU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
sizeof(uint64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uint64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \
})
/* Oid for a CPU dependent variable */
#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \
({ \
struct sysctl_oid *__ret; \
CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \
sizeof(unsigned) == sizeof(*(ptr))) && \
((access) & CTLTYPE) == 0); \
if (sizeof(uint64_t) == sizeof(*(ptr))) { \
__ret = sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
(ptr), 0, sysctl_handle_64, "QU", \
__DESCR(descr), NULL); \
} else { \
__ret = sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
(ptr), 0, sysctl_handle_int, "IU", \
__DESCR(descr), NULL); \
} \
__ret; \
})
/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */
#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
(ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \
sizeof(counter_u64_t) == sizeof(*(ptr)) && \
sizeof(uint64_t) == sizeof(**(ptr)))
#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
({ \
counter_u64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
__ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \
NULL); \
})
/* Oid for an array of counter(9)s. The pointer and length must be non zero. */
#define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
(ptr), (len), sysctl_handle_counter_u64_array, "QU", descr);\
CTASSERT((((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \
sizeof(counter_u64_t) == sizeof(*(ptr)) && \
sizeof(uint64_t) == sizeof(**(ptr)))
#define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \
ptr, len, descr) \
({ \
counter_u64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | CTLFLAG_STATS | (access), \
__ptr, len, sysctl_handle_counter_u64_array, "S", \
__DESCR(descr), NULL); \
})
/* Oid for an opaque object. Specified by a pointer and a length. */
#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
ptr, len, sysctl_handle_opaque, fmt, descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \
})
/* Oid for a struct. Specified by a pointer and a type. */
#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
ptr, sizeof(struct type), sysctl_handle_opaque, \
"S," #type, descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \
(ptr), sizeof(struct type), \
sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \
})
/* Oid for a procedure. Specified by a pointer and an arg. */
#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
SYSCTL_OID(parent, nbr, name, (access), \
ptr, arg, handler, fmt, descr); \
CTASSERT(((access) & CTLTYPE) != 0)
#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
({ \
CTASSERT(((access) & CTLTYPE) != 0); \
SYSCTL_ENFORCE_FLAGS(access); \
sysctl_add_oid(ctx, parent, nbr, name, (access), \
(ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \
})
/* Oid to handle limits on uma(9) zone specified by pointer. */
#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
(ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uma_zone_t __ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \
NULL); \
})
/* Oid to obtain current use of uma(9) zone specified by pointer. */
#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
(ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uma_zone_t __ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
__ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \
NULL); \
})
/* OID expressing a sbintime_t as microseconds */
#define SYSCTL_SBINTIME_USEC(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
(ptr), 0, sysctl_usec_to_sbintime, "Q", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64)
#define SYSCTL_ADD_SBINTIME_USEC(ctx, parent, nbr, name, access, ptr, descr) \
({ \
sbintime_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
__ptr, 0, sysctl_usec_to_sbintime, "Q", __DESCR(descr), \
NULL); \
})
/* OID expressing a sbintime_t as milliseconds */
#define SYSCTL_SBINTIME_MSEC(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
(ptr), 0, sysctl_msec_to_sbintime, "Q", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64)
#define SYSCTL_ADD_SBINTIME_MSEC(ctx, parent, nbr, name, access, ptr, descr) \
({ \
sbintime_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
__ptr, 0, sysctl_msec_to_sbintime, "Q", __DESCR(descr), \
NULL); \
})
/* OID expressing a struct timeval as seconds */
#define SYSCTL_TIMEVAL_SEC(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
(ptr), 0, sysctl_sec_to_timeval, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
#define SYSCTL_ADD_TIMEVAL_SEC(ctx, parent, nbr, name, access, ptr, descr) \
({ \
struct timeval *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
__ptr, 0, sysctl_sec_to_timeval, "I", __DESCR(descr), \
NULL); \
})
#define SYSCTL_FOREACH(oidp, list) \
RB_FOREACH(oidp, sysctl_oid_list, list)
/*
* A macro to generate a read-only sysctl to indicate the presence of optional
* kernel features.
*/
#define FEATURE(name, desc) \
SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \
CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature")
#endif /* _KERNEL */
/*
* Top-level identifiers
*/
#define CTL_SYSCTL 0 /* "magic" numbers */
#define CTL_KERN 1 /* "high kernel": proc, limits */
#define CTL_VM 2 /* virtual memory */
#define CTL_VFS 3 /* filesystem, mount type is next */
#define CTL_NET 4 /* network, see socket.h */
#define CTL_DEBUG 5 /* debugging parameters */
#define CTL_HW 6 /* generic cpu/io */
#define CTL_MACHDEP 7 /* machine dependent */
#define CTL_USER 8 /* user-level */
#define CTL_P1003_1B 9 /* POSIX 1003.1B */
/*
* CTL_SYSCTL identifiers
*/
#define CTL_SYSCTL_DEBUG 0 /* printf all nodes */
#define CTL_SYSCTL_NAME 1 /* string name of OID */
#define CTL_SYSCTL_NEXT 2 /* next OID, honoring CTLFLAG_SKIP */
#define CTL_SYSCTL_NAME2OID 3 /* int array of name */
#define CTL_SYSCTL_OIDFMT 4 /* OID's kind and format */
#define CTL_SYSCTL_OIDDESCR 5 /* OID's description */
#define CTL_SYSCTL_OIDLABEL 6 /* aggregation label */
#define CTL_SYSCTL_NEXTNOSKIP 7 /* next OID, ignoring CTLFLAG_SKIP */
/*
* CTL_KERN identifiers
*/
#define KERN_OSTYPE 1 /* string: system version */
#define KERN_OSRELEASE 2 /* string: system release */
#define KERN_OSREV 3 /* int: system revision */
#define KERN_VERSION 4 /* string: compile time info */
#define KERN_MAXVNODES 5 /* int: max vnodes */
#define KERN_MAXPROC 6 /* int: max processes */
#define KERN_MAXFILES 7 /* int: max open files */
#define KERN_ARGMAX 8 /* int: max arguments to exec */
#define KERN_SECURELVL 9 /* int: system security level */
#define KERN_HOSTNAME 10 /* string: hostname */
#define KERN_HOSTID 11 /* int: host identifier */
#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
/* was: #define KERN_VNODE 13 ; disabled in 2003 and removed in 2023 */
#define KERN_PROC 14 /* struct: process entries */
#define KERN_FILE 15 /* struct: file entries */
#define KERN_PROF 16 /* node: kernel profiling info */
#define KERN_POSIX1 17 /* int: POSIX.1 version */
#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
#define KERN_JOB_CONTROL 19 /* int: is job control available */
#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
#define KERN_OSRELDATE 24 /* int: kernel release date */
#define KERN_NTP_PLL 25 /* node: NTP PLL control */
#define KERN_BOOTFILE 26 /* string: name of booted kernel */
#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */
#define KERN_IPC 30 /* node: anything related to IPC */
#define KERN_DUMMY 31 /* unused */
#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
#define KERN_USRSTACK 33 /* int: address of USRSTACK */
#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
#define KERN_HOSTUUID 36 /* string: host UUID identifier */
#define KERN_ARND 37 /* int: from arc4rand() */
#define KERN_MAXPHYS 38 /* int: MAXPHYS value */
#define KERN_LOCKF 39 /* struct: lockf reports */
/*
* KERN_PROC subtypes
*/
#define KERN_PROC_ALL 0 /* everything */
#define KERN_PROC_PID 1 /* by process id */
#define KERN_PROC_PGRP 2 /* by process group id */
#define KERN_PROC_SESSION 3 /* by session of pid */
#define KERN_PROC_TTY 4 /* by controlling tty */
#define KERN_PROC_UID 5 /* by effective uid */
#define KERN_PROC_RUID 6 /* by real uid */
#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
#define KERN_PROC_PROC 8 /* only return procs */
#define KERN_PROC_SV_NAME 9 /* get syscall vector name */
#define KERN_PROC_RGID 10 /* by real group id */
#define KERN_PROC_GID 11 /* by effective group id */
#define KERN_PROC_PATHNAME 12 /* path to executable */
#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */
#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */
#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */
#define KERN_PROC_INC_THREAD 0x10 /*
* modifier for pid, pgrp, tty,
* uid, ruid, gid, rgid and proc
* This effectively uses 16-31
*/
#define KERN_PROC_VMMAP 32 /* VM map entries for process */
#define KERN_PROC_FILEDESC 33 /* File descriptors for process */
#define KERN_PROC_GROUPS 34 /* process groups */
#define KERN_PROC_ENV 35 /* get environment */
#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */
#define KERN_PROC_RLIMIT 37 /* process resource limits */
#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */
#define KERN_PROC_UMASK 39 /* process umask */
#define KERN_PROC_OSREL 40 /* osreldate for process binary */
#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */
#define KERN_PROC_CWD 42 /* process current working directory */
#define KERN_PROC_NFDS 43 /* number of open file descriptors */
#define KERN_PROC_SIGFASTBLK 44 /* address of fastsigblk magic word */
#define KERN_PROC_VM_LAYOUT 45 /* virtual address space layout info */
/*
* KERN_IPC identifiers
*/
#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
#define KIPC_MAX_HDR 6 /* int: max total length of headers */
#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
/*
* CTL_HW identifiers
*/
#define HW_MACHINE 1 /* string: machine class */
#define HW_MODEL 2 /* string: specific machine model */
#define HW_NCPU 3 /* int: number of cpus */
#define HW_BYTEORDER 4 /* int: machine byte order */
#define HW_PHYSMEM 5 /* int: total memory */
#define HW_USERMEM 6 /* int: non-kernel memory */
#define HW_PAGESIZE 7 /* int: software page size */
#define HW_DISKNAMES 8 /* strings: disk drive names */
#define HW_DISKSTATS 9 /* struct: diskstats[] */
#define HW_FLOATINGPT 10 /* int: has HW floating point? */
#define HW_MACHINE_ARCH 11 /* string: machine architecture */
#define HW_REALMEM 12 /* int: 'real' memory */
/*
* CTL_USER definitions
*/
#define USER_CS_PATH 1 /* string: _CS_PATH */
#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
#define USER_LINE_MAX 8 /* int: LINE_MAX */
#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
#define USER_LOCALBASE 21 /* string: _PATH_LOCALBASE */
#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
#define CTL_P1003_1B_MEMLOCK 3 /* boolean */
#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
#define CTL_P1003_1B_FSYNC 11 /* boolean */
#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
#define CTL_P1003_1B_TIMERS 14 /* boolean */
#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
#define CTL_P1003_1B_AIO_MAX 16 /* int */
#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
#define CTL_P1003_1B_PAGESIZE 20 /* int */
#define CTL_P1003_1B_RTSIG_MAX 21 /* int */
#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
#define CTL_P1003_1B_TIMER_MAX 25 /* int */
#ifdef _KERNEL
#define CTL_P1003_1B_MAXID 26
/*
* Declare some common oids.
*/
extern struct sysctl_oid_list sysctl__children;
SYSCTL_DECL(_kern);
SYSCTL_DECL(_kern_features);
SYSCTL_DECL(_kern_ipc);
SYSCTL_DECL(_kern_proc);
SYSCTL_DECL(_kern_sched);
SYSCTL_DECL(_kern_sched_stats);
SYSCTL_DECL(_sysctl);
SYSCTL_DECL(_vm);
SYSCTL_DECL(_vm_stats);
SYSCTL_DECL(_vm_stats_misc);
SYSCTL_DECL(_vfs);
SYSCTL_DECL(_net);
SYSCTL_DECL(_debug);
SYSCTL_DECL(_debug_sizeof);
SYSCTL_DECL(_dev);
SYSCTL_DECL(_hw);
SYSCTL_DECL(_hw_bus);
SYSCTL_DECL(_hw_bus_devices);
SYSCTL_DECL(_machdep);
SYSCTL_DECL(_machdep_mitigations);
SYSCTL_DECL(_user);
SYSCTL_DECL(_compat);
SYSCTL_DECL(_regression);
SYSCTL_DECL(_security);
SYSCTL_DECL(_security_bsd);
extern char machine[];
extern char osrelease[];
extern char ostype[];
extern char kern_ident[];
/* Dynamic oid handling */
struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
struct sysctl_oid_list *parent, int nbr, const char *name, int kind,
void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS),
const char *fmt, const char *descr, const char *label);
int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
int recurse);
void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
int sysctl_move_oid(struct sysctl_oid *oidp,
struct sysctl_oid_list *parent);
int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
int sysctl_ctx_init(struct sysctl_ctx_list *clist);
int sysctl_ctx_free(struct sysctl_ctx_list *clist);
struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
struct sysctl_oid *oidp);
struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
struct sysctl_oid *oidp);
int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
struct sysctl_oid *oidp);
int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
size_t *oldlenp, void *new, size_t newlen, size_t *retval,
int flags);
int kernel_sysctlbyname(struct thread *td, char *name, void *old,
size_t *oldlenp, void *new, size_t newlen, size_t *retval,
int flags);
int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
size_t *oldlenp, int inkernel, const void *new, size_t newlen,
size_t *retval, int flags);
int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
int *nindx, struct sysctl_req *req);
void sysctl_wlock(void);
void sysctl_wunlock(void);
int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
int kern___sysctlbyname(struct thread *td, const char *name,
size_t namelen, void *old, size_t *oldlenp, void *new,
size_t newlen, size_t *retval, int flags, bool inkernel);
struct sbuf;
struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
struct sysctl_req *);
#else /* !_KERNEL */
#include <sys/cdefs.h>
#include <sys/_types.h>
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
#define _SIZE_T_DECLARED
#endif
__BEGIN_DECLS
int sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
int sysctlnametomib(const char *, int *, size_t *);
__END_DECLS
#endif /* _KERNEL */
#endif /* !_SYS_SYSCTL_H_ */
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