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audk/StdLib/Include/sys/sysctl.h

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/*
* 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.
*
* Portions copyright (c) 1999, 2000
* Intel Corporation.
* All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by the University of
* California, Berkeley, Intel Corporation, and its contributors.
*
* 4. Neither the name of University, Intel Corporation, or their respective
* 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, INTEL CORPORATION 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,
* INTEL CORPORATION 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
* $Id: sysctl.h,v 1.1.1.1 2006/05/30 06:13:00 hhzhou Exp $
*/
#ifndef _SYS_SYSCTL_H_
#define _SYS_SYSCTL_H_
#include <sys/_posix.h>
/*
* 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.
*/
#define CTL_MAXNAME 12 /* largest number of components supported */
/*
* 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(1) in manipulating the subsystem.
*/
struct ctlname {
char *ctl_name; /* subsystem name */
int ctl_type; /* type of name */
};
#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_QUAD 4 /* name describes a 64-bit number */
#define CTLTYPE_OPAQUE 5 /* name describes a structure */
#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
#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_NOLOCK 0x20000000 /* XXX Don't Lock */
#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
/*
* 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)
#ifdef KERNEL
#define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \
struct sysctl_req *req)
/*
* 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 sysctl_req {
struct proc *p;
int lock;
void *oldptr;
size_t oldlen;
size_t oldidx;
int (*oldfunc)(struct sysctl_req *, const void *, size_t);
void *newptr;
size_t newlen;
size_t newidx;
int (*newfunc)(struct sysctl_req *, void *, size_t);
};
#ifndef _ORG_FREEBSD_
#include <sys/ioccom.h>
/*
* Pseudo sysctl call through ioctl(2) interface
*/
#define IOCSYSCTL _IOWR('X', 0, struct sysctl_req)
struct pseudo_sysctl {
int *name;
u_int namelen;
struct sysctl_req req;
};
#endif
/*
* This describes one "oid" in the MIB tree. Potentially more nodes can
* be hidden behind it, expanded by the handler.
*/
struct sysctl_oid {
int oid_number;
int oid_kind;
void *oid_arg1;
int oid_arg2;
const char *oid_name;
int (*oid_handler) SYSCTL_HANDLER_ARGS;
const char *oid_fmt;
};
#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
int sysctl_handle_int SYSCTL_HANDLER_ARGS;
int sysctl_handle_long SYSCTL_HANDLER_ARGS;
int sysctl_handle_intptr SYSCTL_HANDLER_ARGS;
int sysctl_handle_string SYSCTL_HANDLER_ARGS;
int sysctl_handle_opaque SYSCTL_HANDLER_ARGS;
#ifdef _ORG_FREEBSD_
/* This constructs a "raw" MIB oid. */
#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
static struct sysctl_oid sysctl__##parent##_##name = { \
nbr, kind, a1, a2, #name, handler, fmt }; \
DATA_SET(sysctl_##parent, sysctl__##parent##_##name)
/* This constructs a node from which other oids can hang. */
#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
extern struct linker_set sysctl_##parent##_##name; \
SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
(void*)&sysctl_##parent##_##name, 0, handler, "N", descr); \
DATA_SET(sysctl_##parent##_##name, sysctl__##parent##_##name)
#else
#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)
#define SYSCTL_NODE(parent, nbr, name, access, handler, descr)
#endif
/* 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|access, \
arg, len, sysctl_handle_string, "A", descr)
/* Oid for an int. If ptr is NULL, val is returned. */
#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
ptr, val, sysctl_handle_int, "I", descr)
/* Oid for a long. The pointer must be non NULL. */
#define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
ptr, 0, sysctl_handle_long, "L", descr)
/* 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|access, \
ptr, len, sysctl_handle_opaque, fmt, descr)
/* 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|access, \
ptr, sizeof(struct type), sysctl_handle_opaque, \
"S," #type, descr)
/* 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)
#endif /* KERNEL */
/*
* Top-level identifiers
*/
#define CTL_UNSPEC 0 /* unused */
#define CTL_KERN 1 /* "high kernel": proc, limits */
#define CTL_VM 2 /* virtual memory */
#define CTL_VFS 3 /* file system, 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 */
#define CTL_MAXID 10 /* number of valid top-level ids */
#define CTL_NAMES { \
{ 0, 0 }, \
{ "kern", CTLTYPE_NODE }, \
{ "vm", CTLTYPE_NODE }, \
{ "vfs", CTLTYPE_NODE }, \
{ "net", CTLTYPE_NODE }, \
{ "debug", CTLTYPE_NODE }, \
{ "hw", CTLTYPE_NODE }, \
{ "machdep", CTLTYPE_NODE }, \
{ "user", CTLTYPE_NODE }, \
{ "p1003_1b", CTLTYPE_NODE }, \
}
/*
* 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 */
#define KERN_VNODE 13 /* struct: vnode structures */
#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: OS 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 /* dev_t: 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_MAXID 35 /* number of valid kern ids */
#define CTL_KERN_NAMES { \
{ 0, 0 }, \
{ "ostype", CTLTYPE_STRING }, \
{ "osrelease", CTLTYPE_STRING }, \
{ "osrevision", CTLTYPE_INT }, \
{ "version", CTLTYPE_STRING }, \
{ "maxvnodes", CTLTYPE_INT }, \
{ "maxproc", CTLTYPE_INT }, \
{ "maxfiles", CTLTYPE_INT }, \
{ "argmax", CTLTYPE_INT }, \
{ "securelevel", CTLTYPE_INT }, \
{ "hostname", CTLTYPE_STRING }, \
{ "hostid", CTLTYPE_INT }, \
{ "clockrate", CTLTYPE_STRUCT }, \
{ "vnode", CTLTYPE_STRUCT }, \
{ "proc", CTLTYPE_STRUCT }, \
{ "file", CTLTYPE_STRUCT }, \
{ "profiling", CTLTYPE_NODE }, \
{ "posix1version", CTLTYPE_INT }, \
{ "ngroups", CTLTYPE_INT }, \
{ "job_control", CTLTYPE_INT }, \
{ "saved_ids", CTLTYPE_INT }, \
{ "boottime", CTLTYPE_STRUCT }, \
{ "nisdomainname", CTLTYPE_STRING }, \
{ "update", CTLTYPE_INT }, \
{ "osreldate", CTLTYPE_INT }, \
{ "ntp_pll", CTLTYPE_NODE }, \
{ "bootfile", CTLTYPE_STRING }, \
{ "maxfilesperproc", CTLTYPE_INT }, \
{ "maxprocperuid", CTLTYPE_INT }, \
{ "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
{ "ipc", CTLTYPE_NODE }, \
{ "dummy", CTLTYPE_INT }, \
{ "ps_strings", CTLTYPE_INT }, \
{ "usrstack", CTLTYPE_INT }, \
{ "logsigexit", CTLTYPE_INT }, \
}
/*
* CTL_VFS identifiers
*/
#define CTL_VFS_NAMES { \
{ "vfsconf", CTLTYPE_STRUCT }, \
}
/*
* 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 */
/*
* 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? */
#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
/*
* 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_MAXID 12 /* number of valid hw ids */
#define CTL_HW_NAMES { \
{ 0, 0 }, \
{ "machine", CTLTYPE_STRING }, \
{ "model", CTLTYPE_STRING }, \
{ "ncpu", CTLTYPE_INT }, \
{ "byteorder", CTLTYPE_INT }, \
{ "physmem", CTLTYPE_INT }, \
{ "usermem", CTLTYPE_INT }, \
{ "pagesize", CTLTYPE_INT }, \
{ "disknames", CTLTYPE_STRUCT }, \
{ "diskstats", CTLTYPE_STRUCT }, \
{ "floatingpoint", CTLTYPE_INT }, \
}
/*
* 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_MAXID 21 /* number of valid user ids */
#define CTL_USER_NAMES { \
{ 0, 0 }, \
{ "cs_path", CTLTYPE_STRING }, \
{ "bc_base_max", CTLTYPE_INT }, \
{ "bc_dim_max", CTLTYPE_INT }, \
{ "bc_scale_max", CTLTYPE_INT }, \
{ "bc_string_max", CTLTYPE_INT }, \
{ "coll_weights_max", CTLTYPE_INT }, \
{ "expr_nest_max", CTLTYPE_INT }, \
{ "line_max", CTLTYPE_INT }, \
{ "re_dup_max", CTLTYPE_INT }, \
{ "posix2_version", CTLTYPE_INT }, \
{ "posix2_c_bind", CTLTYPE_INT }, \
{ "posix2_c_dev", CTLTYPE_INT }, \
{ "posix2_char_term", CTLTYPE_INT }, \
{ "posix2_fort_dev", CTLTYPE_INT }, \
{ "posix2_fort_run", CTLTYPE_INT }, \
{ "posix2_localedef", CTLTYPE_INT }, \
{ "posix2_sw_dev", CTLTYPE_INT }, \
{ "posix2_upe", CTLTYPE_INT }, \
{ "stream_max", CTLTYPE_INT }, \
{ "tzname_max", CTLTYPE_INT }, \
}
#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 */
#define CTL_P1003_1B_MAXID 26
#define CTL_P1003_1B_NAMES { \
{ 0, 0 }, \
{ "asynchronous_io", CTLTYPE_INT }, \
{ "mapped_files", CTLTYPE_INT }, \
{ "memlock", CTLTYPE_INT }, \
{ "memlock_range", CTLTYPE_INT }, \
{ "memory_protection", CTLTYPE_INT }, \
{ "message_passing", CTLTYPE_INT }, \
{ "prioritized_io", CTLTYPE_INT }, \
{ "priority_scheduling", CTLTYPE_INT }, \
{ "realtime_signals", CTLTYPE_INT }, \
{ "semaphores", CTLTYPE_INT }, \
{ "fsync", CTLTYPE_INT }, \
{ "shared_memory_objects", CTLTYPE_INT }, \
{ "synchronized_io", CTLTYPE_INT }, \
{ "timers", CTLTYPE_INT }, \
{ "aio_listio_max", CTLTYPE_INT }, \
{ "aio_max", CTLTYPE_INT }, \
{ "aio_prio_delta_max", CTLTYPE_INT }, \
{ "delaytimer_max", CTLTYPE_INT }, \
{ "mq_open_max", CTLTYPE_INT }, \
{ "pagesize", CTLTYPE_INT }, \
{ "rtsig_max", CTLTYPE_INT }, \
{ "nsems_max", CTLTYPE_INT }, \
{ "sem_value_max", CTLTYPE_INT }, \
{ "sigqueue_max", CTLTYPE_INT }, \
{ "timer_max", CTLTYPE_INT }, \
}
#ifdef KERNEL
extern char machine[];
extern char osrelease[];
extern char ostype[];
int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old,
size_t *oldlenp, void *new, size_t newlen,
size_t *retval);
void sysctl_order_all(void);
int userland_sysctl(struct proc *p, int *name, u_int namelen, void *old,
size_t *oldlenp, int inkernel, void *new, size_t newlen,
size_t *retval);
#else /* !KERNEL */
#include <sys/EfiCdefs.h>
__BEGIN_DECLS
int sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
int sysctlbyname __P((const char *, void *, size_t *, void *, size_t));
__END_DECLS
#endif /* KERNEL */
#endif /* !_SYS_SYSCTL_H_ */
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