sysctl.h File Reference

#include <stdint.h>
#include <sys/queue.h>
#include <sys/cdefs.h>

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Data Structures
struct	ctlname

Macros
#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_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	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	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 */
#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 /* Tunable variable */
#define	CTLFLAG_RDTUN   (CTLFLAG_RD|CTLFLAG_TUN)
#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))
#define	OID_AUTO   (-1)
#define	CTL_AUTO_START   0x100
#define	CTL_UNSPEC   0 /* unused */
#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 */
#define	CTL_MAXID   10 /* number of valid top-level ids */
#define	CTL_NAMES
#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: 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_MAXID   36 /* number of valid kern ids */
#define	CTL_KERN_NAMES
#define	CTL_VFS_NAMES
#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_INC_THREAD
#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	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
#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
#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

Functions
__BEGIN_DECLS int	sysctl (int *, u_int, void *, size_t *, void *, size_t)
int	sysctlbyname (const char *, void *, size_t *, void *, size_t)
int	sysctlnametomib (const char *, int *, size_t *)

Macro Definition Documentation

CTL_HW_NAMES

#define CTL_HW_NAMES

Value:

{ \
        { 0, 0 }, \
        { "machine", CTLTYPE_STRING }, \
        { "model", CTLTYPE_STRING }, \
        { "ncpu", CTLTYPE_INT }, \
        { "byteorder", CTLTYPE_INT }, \
        { "physmem", CTLTYPE_ULONG }, \
        { "usermem", CTLTYPE_ULONG }, \
        { "pagesize", CTLTYPE_INT }, \
        { "disknames", CTLTYPE_STRUCT }, \
        { "diskstats", CTLTYPE_STRUCT }, \
        { "floatingpoint", CTLTYPE_INT }, \
}

CTL_NAMES

#define CTL_NAMES

Value:

{ \
        { 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_P1003_1B_NAMES

#define CTL_P1003_1B_NAMES

Value:

{ \
        { 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 }, \
}

CTL_USER_NAMES

#define CTL_USER_NAMES

Value:

{ \
        { 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 }, \
}

CTL_VFS_NAMES

#define CTL_VFS_NAMES

Value:

{ \
        { "vfsconf", CTLTYPE_STRUCT }, \
}

KERN_PROC_INC_THREAD

#define KERN_PROC_INC_THREAD

Value:

0x10    /*
                                         * modifier for pid, pgrp, tty,
                                         * uid, ruid, gid, rgid and proc
                                         */