#include <sys/cdefs.h>
#include "opt_capsicum.h"
#include "opt_compat.h"
#include "opt_ktrace.h"
#include <sys/param.h>
#include <sys/fail.h>
#include <sys/systm.h>
#include <sys/capability.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/jail.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sbuf.h>
#include <sys/sx.h>
#include <sys/sysproto.h>
#include <sys/uio.h>
#include <net/vnet.h>
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
#include <vm/vm_extern.h>

Include dependency graph for kern_sysctl.c:

Data Structures
struct	sysctl_args

Macros
#define	SYSCTL_XLOCK() sx_xlock(&sysctllock)

#define	SYSCTL_XUNLOCK() sx_xunlock(&sysctllock)

#define	SYSCTL_ASSERT_XLOCKED() sx_assert(&sysctllock, SA_XLOCKED)

#define	SYSCTL_INIT() sx_init(&sysctllock, "sysctl lock")

#define	SYSCTL_SLEEP(ch, wmesg, timo) sx_sleep(ch, &sysctllock, 0, wmesg, timo)

Functions
	__FBSDID ("$BSDSUniX$")

static	MALLOC_DEFINE (M_SYSCTL,"sysctl","sysctl internal magic")

static	MALLOC_DEFINE (M_SYSCTLOID,"sysctloid","sysctl dynamic oids")

static	MALLOC_DEFINE (M_SYSCTLTMP,"sysctltmp","sysctl temp output buffer")

static int	sysctl_root (SYSCTL_HANDLER_ARGS)

static int	sysctl_remove_oid_locked (struct sysctl_oid *oidp, int del, int recurse)

static struct sysctl_oid *	sysctl_find_oidname (const char name, struct sysctl_oid_list list)

void	sysctl_lock (void)

void	sysctl_unlock (void)

void	sysctl_register_oid (struct sysctl_oid *oidp)

void	sysctl_unregister_oid (struct sysctl_oid *oidp)

int	sysctl_ctx_init (struct sysctl_ctx_list *c)

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	sysctl_remove_oid (struct sysctl_oid *oidp, int del, int recurse)

int	sysctl_remove_name (struct sysctl_oid parent, const char name, int del, int recurse)

struct sysctl_oid *	sysctl_add_oid (struct sysctl_ctx_list clist, struct sysctl_oid_list parent, int number, const char name, int kind, void arg1, intptr_t arg2, int(handler)(SYSCTL_HANDLER_ARGS), const char fmt, const char *descr)

void	sysctl_rename_oid (struct sysctl_oid oidp, const char name)

int	sysctl_move_oid (struct sysctl_oid oid, struct sysctl_oid_list parent)

	SET_DECLARE (sysctl_set, struct sysctl_oid)

static void	sysctl_register_all (void *arg)

	SYSINIT (sysctl, SI_SUB_KMEM, SI_ORDER_ANY, sysctl_register_all, 0)

static int	sysctl_sysctl_name (SYSCTL_HANDLER_ARGS)

static	SYSCTL_NODE (_sysctl, 1, name, CTLFLAG_RD\|CTLFLAG_CAPRD, sysctl_sysctl_name,"")

static int	sysctl_sysctl_next_ls (struct sysctl_oid_list lsp, int name, u_int namelen, int next, int len, int level, struct sysctl_oid **oidpp)

static int	sysctl_sysctl_next (SYSCTL_HANDLER_ARGS)

static	SYSCTL_NODE (_sysctl, 2, next, CTLFLAG_RD\|CTLFLAG_CAPRD, sysctl_sysctl_next,"")

static int	name2oid (char name, int oid, int len, struct sysctl_oid *oidpp)

static int	sysctl_sysctl_name2oid (SYSCTL_HANDLER_ARGS)

	SYSCTL_PROC (_sysctl, 3, name2oid, CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY\|CTLFLAG_MPSAFE\|CTLFLAG_CAPRW, 0, 0, sysctl_sysctl_name2oid,"I","")

static int	sysctl_sysctl_oidfmt (SYSCTL_HANDLER_ARGS)

static	SYSCTL_NODE (_sysctl, 4, oidfmt, CTLFLAG_RD\|CTLFLAG_MPSAFE\|CTLFLAG_CAPRD, sysctl_sysctl_oidfmt,"")

static int	sysctl_sysctl_oiddescr (SYSCTL_HANDLER_ARGS)

static	SYSCTL_NODE (_sysctl, 5, oiddescr, CTLFLAG_RD\|CTLFLAG_CAPRD, sysctl_sysctl_oiddescr,"")

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_64 (SYSCTL_HANDLER_ARGS)

int	sysctl_handle_string (SYSCTL_HANDLER_ARGS)

int	sysctl_handle_opaque (SYSCTL_HANDLER_ARGS)

static int	sysctl_old_kernel (struct sysctl_req req, const void p, size_t l)

static int	sysctl_new_kernel (struct sysctl_req req, void p, size_t l)

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)

static int	sysctl_old_user (struct sysctl_req req, const void p, size_t l)

static int	sysctl_new_user (struct sysctl_req req, void p, size_t l)

int	sysctl_wire_old_buffer (struct sysctl_req *req, size_t len)

int	sysctl_find_oid (int name, u_int namelen, struct sysctl_oid noid, int nindx, struct sysctl_req *req)

int	sys___sysctl (struct thread td, struct sysctl_args uap)

int	userland_sysctl (struct thread td, int name, u_int namelen, void old, size_t oldlenp, int inkernel, void new, size_t newlen, size_t retval, int flags)

static int	sbuf_sysctl_drain (void arg, const char data, int len)

struct sbuf *	sbuf_new_for_sysctl (struct sbuf s, char buf, int length, struct sysctl_req *req)

Variables
static struct sx	sysctllock

static struct sx	sysctlmemlock

struct sysctl_oid_list	sysctl__children

Macro Definition Documentation

#define SYSCTL_ASSERT_XLOCKED ( ) sx_assert(&sysctllock, SA_XLOCKED)

Definition at line 94 of file kern_sysctl.c.

Referenced by name2oid(), sysctl_ctx_entry_add(), sysctl_ctx_entry_find(), sysctl_find_oid(), sysctl_find_oidname(), sysctl_register_oid(), sysctl_remove_oid_locked(), sysctl_root(), sysctl_sysctl_next_ls(), and sysctl_unregister_oid().

#define SYSCTL_INIT ( ) sx_init(&sysctllock, "sysctl lock")

Definition at line 95 of file kern_sysctl.c.

Referenced by sysctl_register_all().

#define SYSCTL_SLEEP	(	ch,
		wmesg,
		timo
	)	sx_sleep(ch, &sysctllock, 0, wmesg, timo)

Definition at line 96 of file kern_sysctl.c.

Referenced by sysctl_remove_oid_locked().

#define SYSCTL_XLOCK ( ) sx_xlock(&sysctllock)

Definition at line 92 of file kern_sysctl.c.

Referenced by kernel_sysctl(), sysctl_add_oid(), sysctl_ctx_entry_del(), sysctl_ctx_free(), sysctl_lock(), sysctl_move_oid(), sysctl_register_all(), sysctl_remove_name(), sysctl_remove_oid(), sysctl_rename_oid(), sysctl_root(), sysctl_sysctl_name(), sysctl_sysctl_name2oid(), sysctl_sysctl_next(), sysctl_sysctl_oiddescr(), sysctl_sysctl_oidfmt(), and userland_sysctl().

#define SYSCTL_XUNLOCK ( ) sx_xunlock(&sysctllock)

Definition at line 93 of file kern_sysctl.c.

Referenced by kernel_sysctl(), sysctl_add_oid(), sysctl_ctx_entry_del(), sysctl_ctx_free(), sysctl_move_oid(), sysctl_register_all(), sysctl_remove_name(), sysctl_remove_oid(), sysctl_rename_oid(), sysctl_root(), sysctl_sysctl_name(), sysctl_sysctl_name2oid(), sysctl_sysctl_next(), sysctl_sysctl_oiddescr(), sysctl_sysctl_oidfmt(), sysctl_unlock(), and userland_sysctl().

Function Documentation

__FBSDID ( "$BSDSUniX$" )

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
	)

Definition at line 1232 of file kern_sysctl.c.

References sysctl_new_kernel(), sysctl_old_kernel(), sysctl_root(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

Referenced by kernel_sysctlbyname().

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int kernel_sysctlbyname	(	struct thread *	td,
		char *	name,
		void *	old,
		size_t *	oldlenp,
		void *	new,
		size_t	newlen,
		size_t *	retval,
		int	flags
	)

Definition at line 1281 of file kern_sysctl.c.

References kernel_sysctl().

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static MALLOC_DEFINE	(	M_SYSCTL	,
		"sysctl"	,
		"sysctl internal magic"
	)

static

static MALLOC_DEFINE	(	M_SYSCTLOID	,
		"sysctloid"	,
		"sysctl dynamic oids"
	)

static

static MALLOC_DEFINE	(	M_SYSCTLTMP	,
		"sysctltmp"	,
		"sysctl temp output buffer"
	)

static

static int name2oid	(	char *	name,
		int *	oid,
		int *	len,
		struct sysctl_oid **	oidpp
	)

static

Definition at line 841 of file kern_sysctl.c.

References sysctl__children, and SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_sysctl_name2oid().

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struct sbuf* sbuf_new_for_sysctl	(	struct sbuf *	s,
		char *	buf,
		int	length,
		struct sysctl_req *	req
	)

Definition at line 1676 of file kern_sysctl.c.

References sbuf_new(), sbuf_set_drain(), and sbuf_sysctl_drain().

Referenced by kdb_sysctl_available(), sysctl_debug_witness_fullgraph(), sysctl_kern_malloc_stats(), sysctl_kern_proc_args(), sysctl_kern_proc_auxv(), sysctl_kern_proc_env(), sysctl_kern_proc_filedesc(), sysctl_kern_proc_vmmap(), and sysctl_out_proc().

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static int sbuf_sysctl_drain	(	void *	arg,
		const char *	data,
		int	len
	)

static

Definition at line 1665 of file kern_sysctl.c.

Referenced by sbuf_new_for_sysctl().

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SET_DECLARE	(	sysctl_set	,
		struct sysctl_oid
	)

int sys___sysctl	(	struct thread *	td,
		struct sysctl_args *	uap
	)

Definition at line 1548 of file kern_sysctl.c.

References sysctl_args::name, sysctl_args::namelen, sysctl_args::new, sysctl_args::newlen, sysctl_args::old, sysctl_args::oldlenp, and userland_sysctl().

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struct sysctl_oid* sysctl_add_oid	(	struct sysctl_ctx_list *	clist,
		struct sysctl_oid_list *	parent,
		int	number,
		const char *	name,
		int	kind,
		void *	arg1,
		intptr_t	arg2,
		int(*)(SYSCTL_HANDLER_ARGS)	handler,
		const char *	fmt,
		const char *	descr
	)

Definition at line 491 of file kern_sysctl.c.

References malloc(), parent, printf(), sysctl_ctx_entry_add(), sysctl_find_oidname(), sysctl_register_oid(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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struct sysctl_ctx_entry* sysctl_ctx_entry_add	(	struct sysctl_ctx_list *	clist,
		struct sysctl_oid *	oidp
	)

Definition at line 330 of file kern_sysctl.c.

References malloc(), and SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_add_oid().

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int sysctl_ctx_entry_del	(	struct sysctl_ctx_list *	clist,
		struct sysctl_oid *	oidp
	)

Definition at line 365 of file kern_sysctl.c.

References free(), sysctl_ctx_entry_find(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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struct sysctl_ctx_entry* sysctl_ctx_entry_find	(	struct sysctl_ctx_list *	clist,
		struct sysctl_oid *	oidp
	)

Definition at line 345 of file kern_sysctl.c.

References SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_ctx_entry_del().

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int sysctl_ctx_free ( struct sysctl_ctx_list * clist )

Definition at line 278 of file kern_sysctl.c.

References free(), panic(), sysctl_register_oid(), sysctl_remove_oid_locked(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

Referenced by cpufreq_detach(), and device_sysctl_fini().

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int sysctl_ctx_init ( struct sysctl_ctx_list * c )

Definition at line 260 of file kern_sysctl.c.

Referenced by cpufreq_attach(), devclass_sysctl_init(), and device_sysctl_init().

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int sysctl_find_oid	(	int *	name,
		u_int	namelen,
		struct sysctl_oid **	noid,
		int *	nindx,
		struct sysctl_req *	req
	)

Definition at line 1388 of file kern_sysctl.c.

References sysctl__children, and SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_root(), sysctl_sysctl_oiddescr(), and sysctl_sysctl_oidfmt().

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static struct sysctl_oid* sysctl_find_oidname	(	const char *	name,
		struct sysctl_oid_list *	list
	)

static

Definition at line 107 of file kern_sysctl.c.

References SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_add_oid(), sysctl_move_oid(), and sysctl_register_oid().

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int sysctl_handle_64 ( SYSCTL_HANDLER_ARGS )

Definition at line 1089 of file kern_sysctl.c.

Referenced by sysctl_kern_timecounter_freq().

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int sysctl_handle_int ( SYSCTL_HANDLER_ARGS )

Definition at line 986 of file kern_sysctl.c.

Referenced by cpufreq_curr_sysctl(), kdb_sysctl_enter(), kdb_sysctl_panic(), kdb_sysctl_trap(), kdb_sysctl_trap_code(), p31b_sysctl_proc(), poll_burst_max_sysctl(), poll_each_burst_sysctl(), reg_frac_sysctl(), sysctl_debug_ktr_clear(), sysctl_debug_num_cores_check(), sysctl_debug_witness_watch(), sysctl_devctl_disable(), sysctl_devctl_queue(), sysctl_fast_gettime(), sysctl_jail_default_allow(), sysctl_jail_default_level(), sysctl_kern_consmute(), sysctl_kern_eventtimer_periodic(), sysctl_kern_msgbuf_clear(), sysctl_kern_pid_max(), sysctl_kern_quantum(), sysctl_kern_randompid(), sysctl_kern_securelvl(), sysctl_kern_timecounter_get(), sysctl_machdep_adjkerntz(), sysctl_maxsockets(), sysctl_msec_to_ticks(), sysctl_nmbclusters(), sysctl_nmbjumbo16(), sysctl_nmbjumbo9(), sysctl_nmbjumbop(), sysctl_nmbufs(), sysctl_resettodr_period(), sysctl_somaxconn(), and user_frac_sysctl().

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int sysctl_handle_long ( SYSCTL_HANDLER_ARGS )

Definition at line 1043 of file kern_sysctl.c.

Referenced by sysctl_handle_sb_max(), sysctl_hostid(), sysctl_hw_physmem(), sysctl_hw_realmem(), sysctl_hw_usermem(), sysctl_kmem_map_free(), and sysctl_kmem_map_size().

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int sysctl_handle_opaque ( SYSCTL_HANDLER_ARGS )

Definition at line 1163 of file kern_sysctl.c.

Referenced by ntp_sysctl(), sysctl_intrcnt(), sysctl_intrnames(), sysctl_kern_clockrate(), and sysctl_kern_msgbuf().

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int sysctl_handle_string ( SYSCTL_HANDLER_ARGS )

Definition at line 1121 of file kern_sysctl.c.

References free(), and malloc().

Referenced by cpufreq_levels_sysctl(), cpufreq_settings_sysctl(), kdb_sysctl_current(), sysctl_debug_ktr_cpumask(), sysctl_hostname(), sysctl_jail_param(), sysctl_kern_console(), sysctl_kern_eventtimer_timer(), sysctl_kern_proc_sv_name(), and sysctl_kern_timecounter_hardware().

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void sysctl_lock ( void )

Definition at line 126 of file kern_sysctl.c.

References SYSCTL_XLOCK.

Referenced by linker_file_register_sysctls(), linker_file_unregister_sysctls(), and vfs_register().

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int sysctl_move_oid	(	struct sysctl_oid *	oid,
		struct sysctl_oid_list *	parent
	)

Definition at line 568 of file kern_sysctl.c.

References parent, sysctl_find_oidname(), sysctl_register_oid(), sysctl_unregister_oid(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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int sysctl_msec_to_ticks ( SYSCTL_HANDLER_ARGS )

Definition at line 1015 of file kern_sysctl.c.

References hz, and sysctl_handle_int().

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static int sysctl_new_kernel	(	struct sysctl_req *	req,
		void *	p,
		size_t	l
	)

static

Definition at line 1220 of file kern_sysctl.c.

Referenced by kernel_sysctl().

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static int sysctl_new_user	(	struct sysctl_req *	req,
		void *	p,
		size_t	l
	)

static

Definition at line 1344 of file kern_sysctl.c.

Referenced by userland_sysctl().

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static SYSCTL_NODE	(	_sysctl	,
		1	,
		name	,
		CTLFLAG_RD\|	CTLFLAG_CAPRD,
		sysctl_sysctl_name	,
		""
	)

static

static SYSCTL_NODE	(	_sysctl	,
		2	,
		next	,
		CTLFLAG_RD\|	CTLFLAG_CAPRD,
		sysctl_sysctl_next	,
		""
	)

static

static SYSCTL_NODE	(	_sysctl	,
		4	,
		oidfmt	,
		CTLFLAG_RD\|CTLFLAG_MPSAFE\|	CTLFLAG_CAPRD,
		sysctl_sysctl_oidfmt	,
		""
	)

static

static SYSCTL_NODE	(	_sysctl	,
		5	,
		oiddescr	,
		CTLFLAG_RD\|	CTLFLAG_CAPRD,
		sysctl_sysctl_oiddescr	,
		""
	)

static

static int sysctl_old_kernel	(	struct sysctl_req *	req,
		const void *	p,
		size_t	l
	)

static

Definition at line 1199 of file kern_sysctl.c.

Referenced by kernel_sysctl().

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static int sysctl_old_user	(	struct sysctl_req *	req,
		const void *	p,
		size_t	l
	)

static

Definition at line 1306 of file kern_sysctl.c.

References copyout_nofault().

Referenced by sysctl_wire_old_buffer(), and userland_sysctl().

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SYSCTL_PROC	(	_sysctl	,
		3	,
		name2oid	,
		CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY\|CTLFLAG_MPSAFE\|	CTLFLAG_CAPRW,
		0	,
		0	,
		sysctl_sysctl_name2oid	,
		"I"	,
		""
	)

static void sysctl_register_all ( void * arg )

static

Definition at line 596 of file kern_sysctl.c.

References SYSCTL_INIT, sysctl_register_oid(), SYSCTL_XLOCK, SYSCTL_XUNLOCK, and sysctlmemlock.

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void sysctl_register_oid ( struct sysctl_oid * oidp )

Definition at line 140 of file kern_sysctl.c.

References panic(), parent, printf(), SYSCTL_ASSERT_XLOCKED, sysctl_find_oidname(), and timeout().

Referenced by linker_file_register_sysctls(), sysctl_add_oid(), sysctl_ctx_free(), sysctl_move_oid(), sysctl_register_all(), and vfs_register().

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int sysctl_remove_name	(	struct sysctl_oid *	parent,
		const char *	name,
		int	del,
		int	recurse
	)

Definition at line 402 of file kern_sysctl.c.

References sysctl_remove_oid_locked(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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int sysctl_remove_oid	(	struct sysctl_oid *	oidp,
		int	del,
		int	recurse
	)

Definition at line 391 of file kern_sysctl.c.

References sysctl_remove_oid_locked(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

Referenced by et_deregister().

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static int sysctl_remove_oid_locked	(	struct sysctl_oid *	oidp,
		int	del,
		int	recurse
	)

static

Definition at line 423 of file kern_sysctl.c.

References free(), printf(), SYSCTL_ASSERT_XLOCKED, SYSCTL_SLEEP, and sysctl_unregister_oid().

Referenced by sysctl_ctx_free(), sysctl_remove_name(), and sysctl_remove_oid().

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void sysctl_rename_oid	(	struct sysctl_oid *	oidp,
		const char *	name
	)

Definition at line 551 of file kern_sysctl.c.

References free(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

Referenced by device_sysctl_update().

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static int sysctl_root ( SYSCTL_HANDLER_ARGS )

static

Definition at line 1437 of file kern_sysctl.c.

References Giant, priv_check(), securelevel_gt(), SYSCTL_ASSERT_XLOCKED, sysctl_find_oid(), SYSCTL_XLOCK, SYSCTL_XUNLOCK, and wakeup().

Referenced by kernel_sysctl(), and userland_sysctl().

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static int sysctl_sysctl_name ( SYSCTL_HANDLER_ARGS )

static

Definition at line 691 of file kern_sysctl.c.

References buf, snprintf(), sysctl__children, SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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static int sysctl_sysctl_name2oid ( SYSCTL_HANDLER_ARGS )

static

Definition at line 880 of file kern_sysctl.c.

References free(), malloc(), name2oid(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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static int sysctl_sysctl_next ( SYSCTL_HANDLER_ARGS )

static

Definition at line 815 of file kern_sysctl.c.

References sysctl__children, sysctl_sysctl_next_ls(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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static int sysctl_sysctl_next_ls	(	struct sysctl_oid_list *	lsp,
		int *	name,
		u_int	namelen,
		int *	next,
		int *	len,
		int	level,
		struct sysctl_oid **	oidpp
	)

static

Definition at line 755 of file kern_sysctl.c.

References level, and SYSCTL_ASSERT_XLOCKED.

Referenced by sysctl_sysctl_next().

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static int sysctl_sysctl_oiddescr ( SYSCTL_HANDLER_ARGS )

static

Definition at line 951 of file kern_sysctl.c.

References sysctl_find_oid(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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static int sysctl_sysctl_oidfmt ( SYSCTL_HANDLER_ARGS )

static

Definition at line 923 of file kern_sysctl.c.

References sysctl_find_oid(), SYSCTL_XLOCK, and SYSCTL_XUNLOCK.

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void sysctl_unlock ( void )

Definition at line 133 of file kern_sysctl.c.

References SYSCTL_XUNLOCK.

Referenced by linker_file_register_sysctls(), linker_file_unregister_sysctls(), and vfs_register().

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void sysctl_unregister_oid ( struct sysctl_oid * oidp )

Definition at line 229 of file kern_sysctl.c.

References printf(), and SYSCTL_ASSERT_XLOCKED.

Referenced by linker_file_unregister_sysctls(), sysctl_move_oid(), sysctl_remove_oid_locked(), and vfs_register().

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int sysctl_wire_old_buffer	(	struct sysctl_req *	req,
		size_t	len
	)

Definition at line 1364 of file kern_sysctl.c.

References sysctl_old_user().

Referenced by kdb_sysctl_enter(), kdb_sysctl_panic(), kdb_sysctl_trap(), kdb_sysctl_trap_code(), sysctl_debug_witness_fullgraph(), sysctl_kern_file(), sysctl_kern_function_list(), sysctl_kern_malloc_stats(), sysctl_kern_proc(), and sysctl_kern_randompid().

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SYSINIT	(	sysctl	,
		SI_SUB_KMEM	,
		SI_ORDER_ANY	,
		sysctl_register_all	,
		0
	)

int userland_sysctl	(	struct thread *	td,
		int *	name,
		u_int	namelen,
		void *	old,
		size_t *	oldlenp,
		int	inkernel,
		void *	new,
		size_t	newlen,
		size_t *	retval,
		int	flags
	)