NetBSD-5.0.2/sys/sys/sysctl.h
/* $NetBSD: sysctl.h,v 1.177.4.1 2009/04/01 00:25:22 snj Exp $ */
/*
* 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
*/
#ifndef _SYS_SYSCTL_H_
#define _SYS_SYSCTL_H_
/*
* These are for the eproc structure defined below.
*/
#include <sys/time.h>
#include <sys/ucred.h>
#include <sys/ucontext.h>
#include <sys/proc.h>
#include <uvm/uvm_extern.h>
/* For offsetof() */
#if defined(_KERNEL) || defined(_STANDALONE)
#include <sys/systm.h>
#else
#include <stddef.h>
#include <stdbool.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.
*/
#define CTL_MAXNAME 12 /* largest number of components supported */
#define SYSCTL_NAMELEN 32 /* longest name allowed for a node */
#define CREATE_BASE (1024) /* start of dynamic mib allocation */
#define SYSCTL_DEFSIZE 8 /* initial size of a child set */
/*
* 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 {
const char *ctl_name; /* subsystem name */
int ctl_type; /* type of name */
};
#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_STRUCT 5 /* name describes a structure */
#define CTLTYPE_BOOL 6 /* name describes a bool */
/*
* Flags that apply to each node, governing access and other features
*/
#define CTLFLAG_READONLY 0x00000000
/* #define CTLFLAG_UNUSED1 0x00000010 */
/* #define CTLFLAG_UNUSED2 0x00000020 */
/* #define CTLFLAG_READ* 0x00000040 */
#define CTLFLAG_READWRITE 0x00000070
#define CTLFLAG_ANYWRITE 0x00000080
#define CTLFLAG_PRIVATE 0x00000100
#define CTLFLAG_PERMANENT 0x00000200
#define CTLFLAG_OWNDATA 0x00000400
#define CTLFLAG_IMMEDIATE 0x00000800
#define CTLFLAG_HEX 0x00001000
#define CTLFLAG_ROOT 0x00002000
#define CTLFLAG_ANYNUMBER 0x00004000
#define CTLFLAG_HIDDEN 0x00008000
#define CTLFLAG_ALIAS 0x00010000
#define CTLFLAG_MMAP 0x00020000
#define CTLFLAG_OWNDESC 0x00040000
/*
* sysctl API version
*/
#define SYSCTL_VERS_MASK 0xff000000
#define SYSCTL_VERS_0 0x00000000
#define SYSCTL_VERS_1 0x01000000
#define SYSCTL_VERSION SYSCTL_VERS_1
#define SYSCTL_VERS(f) ((f) & SYSCTL_VERS_MASK)
/*
* Flags that can be set by a create request from user-space
*/
#define SYSCTL_USERFLAGS (CTLFLAG_READWRITE|\
CTLFLAG_ANYWRITE|\
CTLFLAG_PRIVATE|\
CTLFLAG_OWNDATA|\
CTLFLAG_IMMEDIATE|\
CTLFLAG_HEX|\
CTLFLAG_HIDDEN)
/*
* Accessor macros
*/
#define SYSCTL_TYPEMASK 0x0000000f
#define SYSCTL_TYPE(x) ((x) & SYSCTL_TYPEMASK)
#define SYSCTL_FLAGMASK 0x00fffff0
#define SYSCTL_FLAGS(x) ((x) & SYSCTL_FLAGMASK)
/*
* Meta-identifiers
*/
#define CTL_EOL -1 /* end of createv/destroyv list */
#define CTL_QUERY -2 /* enumerates children of a node */
#define CTL_CREATE -3 /* node create request */
#define CTL_CREATESYM -4 /* node create request with symbol */
#define CTL_DESTROY -5 /* node destroy request */
#define CTL_MMAP -6 /* mmap request */
#define CTL_DESCRIBE -7 /* get node descriptions */
/*
* 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_DDB 9 /* in-kernel debugger */
#define CTL_PROC 10 /* per-proc attr */
#define CTL_VENDOR 11 /* vendor-specific data */
#define CTL_EMUL 12 /* emulation-specific data */
#define CTL_SECURITY 13 /* security */
#define CTL_MAXID 14 /* 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 }, \
{ "ddb", CTLTYPE_NODE }, \
{ "proc", CTLTYPE_NODE }, \
{ "vendor", CTLTYPE_NODE }, \
{ "emul", CTLTYPE_NODE }, \
{ "security", CTLTYPE_NODE }, \
}
/*
* The "vendor" toplevel name is to be used by vendors who wish to
* have their own private MIB tree. If you do that, please use
* vendor.<yourname>.*
*/
/*
* 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 clockinfo */
#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_DOMAINNAME 22 /* string: (YP) domainname */
#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */
#define KERN_RAWPARTITION 24 /* int: raw partition number */
#define KERN_NTPTIME 25 /* struct: extended-precision time */
#define KERN_TIMEX 26 /* struct: ntp timekeeping state */
#define KERN_AUTONICETIME 27 /* int: proc time before autonice */
#define KERN_AUTONICEVAL 28 /* int: auto nice value */
#define KERN_RTC_OFFSET 29 /* int: offset of rtc from gmt */
#define KERN_ROOT_DEVICE 30 /* string: root device */
#define KERN_MSGBUFSIZE 31 /* int: max # of chars in msg buffer */
#define KERN_FSYNC 32 /* int: file synchronization support */
#define KERN_OLDSYSVMSG 33 /* old: SysV message queue suppoprt */
#define KERN_OLDSYSVSEM 34 /* old: SysV semaphore support */
#define KERN_OLDSYSVSHM 35 /* old: SysV shared memory support */
#define KERN_OLDSHORTCORENAME 36 /* old, unimplemented */
#define KERN_SYNCHRONIZED_IO 37 /* int: POSIX synchronized I/O */
#define KERN_IOV_MAX 38 /* int: max iovec's for readv(2) etc. */
#define KERN_MBUF 39 /* node: mbuf parameters */
#define KERN_MAPPED_FILES 40 /* int: POSIX memory mapped files */
#define KERN_MEMLOCK 41 /* int: POSIX memory locking */
#define KERN_MEMLOCK_RANGE 42 /* int: POSIX memory range locking */
#define KERN_MEMORY_PROTECTION 43 /* int: POSIX memory protections */
#define KERN_LOGIN_NAME_MAX 44 /* int: max length login name + NUL */
#define KERN_DEFCORENAME 45 /* old: sort core name format */
#define KERN_LOGSIGEXIT 46 /* int: log signalled processes */
#define KERN_PROC2 47 /* struct: process entries */
#define KERN_PROC_ARGS 48 /* struct: process argv/env */
#define KERN_FSCALE 49 /* int: fixpt FSCALE */
#define KERN_CCPU 50 /* old: fixpt ccpu */
#define KERN_CP_TIME 51 /* struct: CPU time counters */
#define KERN_OLDSYSVIPC_INFO 52 /* old: number of valid kern ids */
#define KERN_MSGBUF 53 /* kernel message buffer */
#define KERN_CONSDEV 54 /* dev_t: console terminal device */
#define KERN_MAXPTYS 55 /* int: maximum number of ptys */
#define KERN_PIPE 56 /* node: pipe limits */
#define KERN_MAXPHYS 57 /* int: kernel value of MAXPHYS */
#define KERN_SBMAX 58 /* int: max socket buffer size */
#define KERN_TKSTAT 59 /* tty in/out counters */
#define KERN_MONOTONIC_CLOCK 60 /* int: POSIX monotonic clock */
#define KERN_URND 61 /* int: random integer from urandom */
#define KERN_LABELSECTOR 62 /* int: disklabel sector */
#define KERN_LABELOFFSET 63 /* int: offset of label within sector */
#define KERN_LWP 64 /* struct: lwp entries */
#define KERN_FORKFSLEEP 65 /* int: sleep length on failed fork */
#define KERN_POSIX_THREADS 66 /* int: POSIX Threads option */
#define KERN_POSIX_SEMAPHORES 67 /* int: POSIX Semaphores option */
#define KERN_POSIX_BARRIERS 68 /* int: POSIX Barriers option */
#define KERN_POSIX_TIMERS 69 /* int: POSIX Timers option */
#define KERN_POSIX_SPIN_LOCKS 70 /* int: POSIX Spin Locks option */
#define KERN_POSIX_READER_WRITER_LOCKS 71 /* int: POSIX R/W Locks option */
#define KERN_DUMP_ON_PANIC 72 /* int: dump on panic */
#define KERN_SOMAXKVA 73 /* int: max socket kernel virtual mem */
#define KERN_ROOT_PARTITION 74 /* int: root partition */
#define KERN_DRIVERS 75 /* struct: driver names and majors #s */
#define KERN_BUF 76 /* struct: buffers */
#define KERN_FILE2 77 /* struct: file entries */
#define KERN_VERIEXEC 78 /* node: verified exec */
#define KERN_CP_ID 79 /* struct: cpu id numbers */
#define KERN_HARDCLOCK_TICKS 80 /* int: number of hardclock ticks */
#define KERN_ARND 81 /* void *buf, size_t siz random */
#define KERN_SYSVIPC 82 /* node: SysV IPC parameters */
#define KERN_MAXID 83 /* 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 }, \
{ "domainname", CTLTYPE_STRING }, \
{ "maxpartitions", CTLTYPE_INT }, \
{ "rawpartition", CTLTYPE_INT }, \
{ "ntptime", CTLTYPE_STRUCT }, \
{ "timex", CTLTYPE_STRUCT }, \
{ "autonicetime", CTLTYPE_INT }, \
{ "autoniceval", CTLTYPE_INT }, \
{ "rtc_offset", CTLTYPE_INT }, \
{ "root_device", CTLTYPE_STRING }, \
{ "msgbufsize", CTLTYPE_INT }, \
{ "fsync", CTLTYPE_INT }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "synchronized_io", CTLTYPE_INT }, \
{ "iov_max", CTLTYPE_INT }, \
{ "mbuf", CTLTYPE_NODE }, \
{ "mapped_files", CTLTYPE_INT }, \
{ "memlock", CTLTYPE_INT }, \
{ "memlock_range", CTLTYPE_INT }, \
{ "memory_protection", CTLTYPE_INT }, \
{ "login_name_max", CTLTYPE_INT }, \
{ "defcorename", CTLTYPE_STRING }, \
{ "logsigexit", CTLTYPE_INT }, \
{ "proc2", CTLTYPE_STRUCT }, \
{ "proc_args", CTLTYPE_STRING }, \
{ "fscale", CTLTYPE_INT }, \
{ 0, 0 }, \
{ "cp_time", CTLTYPE_STRUCT }, \
{ 0, 0 }, \
{ "msgbuf", CTLTYPE_STRUCT }, \
{ "consdev", CTLTYPE_STRUCT }, \
{ "maxptys", CTLTYPE_INT }, \
{ "pipe", CTLTYPE_NODE }, \
{ "maxphys", CTLTYPE_INT }, \
{ "sbmax", CTLTYPE_INT }, \
{ "tkstat", CTLTYPE_NODE }, \
{ "monotonic_clock", CTLTYPE_INT }, \
{ "urandom", CTLTYPE_INT }, \
{ "labelsector", CTLTYPE_INT }, \
{ "labeloffset", CTLTYPE_INT }, \
{ "lwp", CTLTYPE_STRUCT }, \
{ "forkfsleep", CTLTYPE_INT }, \
{ "posix_threads", CTLTYPE_INT }, \
{ "posix_semaphores", CTLTYPE_INT }, \
{ "posix_barriers", CTLTYPE_INT }, \
{ "posix_timers", CTLTYPE_INT }, \
{ "posix_spin_locks", CTLTYPE_INT }, \
{ "posix_reader_writer_locks", CTLTYPE_INT }, \
{ "dump_on_panic", CTLTYPE_INT}, \
{ "somaxkva", CTLTYPE_INT}, \
{ "root_partition", CTLTYPE_INT}, \
{ "drivers", CTLTYPE_STRUCT }, \
{ "buf", CTLTYPE_NODE }, \
{ "file2", CTLTYPE_STRUCT }, \
{ "veriexec", CTLTYPE_NODE }, \
{ "cp_id", CTLTYPE_STRUCT }, \
{ "hardclock_ticks", CTLTYPE_INT }, \
{ "arandom", CTLTYPE_STRUCT }, \
{ "sysvipc", CTLTYPE_STRUCT }, \
}
/*
* KERN_CLOCKRATE structure
*/
struct clockinfo {
int hz; /* clock frequency */
int tick; /* micro-seconds per hz tick */
int tickadj; /* clock skew rate for adjtime() */
int stathz; /* statistics clock frequency */
int profhz; /* profiling clock frequency */
};
/*
* 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_GID 7 /* by effective gid */
#define KERN_PROC_RGID 8 /* by real gid */
/*
* KERN_PROC_TTY sub-subtypes
*/
#define KERN_PROC_TTY_NODEV NODEV /* no controlling tty */
#define KERN_PROC_TTY_REVOKE ((dev_t)-2) /* revoked tty */
struct ki_pcred {
void *p_pad;
uid_t p_ruid; /* Real user id */
uid_t p_svuid; /* Saved effective user id */
gid_t p_rgid; /* Real group id */
gid_t p_svgid; /* Saved effective group id */
int p_refcnt; /* Number of references */
};
struct ki_ucred {
uint32_t cr_ref; /* reference count */
uid_t cr_uid; /* effective user id */
gid_t cr_gid; /* effective group id */
uint32_t cr_ngroups; /* number of groups */
gid_t cr_groups[NGROUPS]; /* groups */
};
/*
* KERN_PROC subtype ops return arrays of augmented proc structures:
*/
struct kinfo_proc {
struct proc kp_proc; /* proc structure */
struct eproc {
struct proc *e_paddr; /* address of proc */
struct session *e_sess; /* session pointer */
struct ki_pcred e_pcred; /* process credentials */
struct ki_ucred e_ucred; /* current credentials */
struct vmspace e_vm; /* address space */
pid_t e_ppid; /* parent process id */
pid_t e_pgid; /* process group id */
short e_jobc; /* job control counter */
dev_t e_tdev; /* controlling tty dev */
pid_t e_tpgid; /* tty process group id */
struct session *e_tsess; /* tty session pointer */
#define WMESGLEN 8
char e_wmesg[WMESGLEN]; /* wchan message */
segsz_t e_xsize; /* text size */
short e_xrssize; /* text rss */
short e_xccount; /* text references */
short e_xswrss;
long e_flag;
#define EPROC_CTTY 0x01 /* controlling tty vnode active */
#define EPROC_SLEADER 0x02 /* session leader */
char e_login[MAXLOGNAME]; /* setlogin() name */
pid_t e_sid; /* session id */
long e_spare[3];
} kp_eproc;
};
/*
* Convert pointer to 64 bit unsigned integer for struct
* kinfo_proc2, etc.
*/
#define PTRTOUINT64(p) ((uint64_t)(uintptr_t)(p))
#define UINT64TOPTR(u) ((void *)(uintptr_t)(u))
/*
* KERN_PROC2 subtype ops return arrays of relatively fixed size
* structures of process info. Use 8 byte alignment, and new
* elements should only be added to the end of this structure so
* binary compatibility can be preserved.
*/
#define KI_NGROUPS 16
#define KI_MAXCOMLEN 24 /* extra for 8 byte alignment */
#define KI_WMESGLEN 8
#define KI_MAXLOGNAME 24 /* extra for 8 byte alignment */
#define KI_MAXEMULLEN 16
#define KI_LNAMELEN 20 /* extra 4 for alignment */
#define KI_NOCPU (~(uint64_t)0)
typedef struct {
uint32_t __bits[4];
} ki_sigset_t;
struct kinfo_proc2 {
uint64_t p_forw; /* PTR: linked run/sleep queue. */
uint64_t p_back;
uint64_t p_paddr; /* PTR: address of proc */
uint64_t p_addr; /* PTR: Kernel virtual addr of u-area */
uint64_t p_fd; /* PTR: Ptr to open files structure. */
uint64_t p_cwdi; /* PTR: cdir/rdir/cmask info */
uint64_t p_stats; /* PTR: Accounting/statistics */
uint64_t p_limit; /* PTR: Process limits. */
uint64_t p_vmspace; /* PTR: Address space. */
uint64_t p_sigacts; /* PTR: Signal actions, state */
uint64_t p_sess; /* PTR: session pointer */
uint64_t p_tsess; /* PTR: tty session pointer */
uint64_t p_ru; /* PTR: Exit information. XXX */
int32_t p_eflag; /* LONG: extra kinfo_proc2 flags */
int32_t p_exitsig; /* INT: signal to sent to parent on exit */
int32_t p_flag; /* INT: P_* flags. */
int32_t p_pid; /* PID_T: Process identifier. */
int32_t p_ppid; /* PID_T: Parent process id */
int32_t p_sid; /* PID_T: session id */
int32_t p__pgid; /* PID_T: process group id */
/* XXX: <sys/proc.h> hijacks p_pgid */
int32_t p_tpgid; /* PID_T: tty process group id */
uint32_t p_uid; /* UID_T: effective user id */
uint32_t p_ruid; /* UID_T: real user id */
uint32_t p_gid; /* GID_T: effective group id */
uint32_t p_rgid; /* GID_T: real group id */
uint32_t p_groups[KI_NGROUPS]; /* GID_T: groups */
int16_t p_ngroups; /* SHORT: number of groups */
int16_t p_jobc; /* SHORT: job control counter */
uint32_t p_tdev; /* DEV_T: controlling tty dev */
uint32_t p_estcpu; /* U_INT: Time averaged value of p_cpticks. */
uint32_t p_rtime_sec; /* STRUCT TIMEVAL: Real time. */
uint32_t p_rtime_usec; /* STRUCT TIMEVAL: Real time. */
int32_t p_cpticks; /* INT: Ticks of CPU time. */
uint32_t p_pctcpu; /* FIXPT_T: %cpu for this process during p_swtime */
uint32_t p_swtime; /* U_INT: Time swapped in or out. */
uint32_t p_slptime; /* U_INT: Time since last blocked. */
int32_t p_schedflags; /* INT: PSCHED_* flags */
uint64_t p_uticks; /* U_QUAD_T: Statclock hits in user mode. */
uint64_t p_sticks; /* U_QUAD_T: Statclock hits in system mode. */
uint64_t p_iticks; /* U_QUAD_T: Statclock hits processing intr. */
uint64_t p_tracep; /* PTR: Trace to vnode or file */
int32_t p_traceflag; /* INT: Kernel trace points. */
int32_t p_holdcnt; /* INT: If non-zero, don't swap. */
ki_sigset_t p_siglist; /* SIGSET_T: Signals arrived but not delivered. */
ki_sigset_t p_sigmask; /* SIGSET_T: Current signal mask. */
ki_sigset_t p_sigignore; /* SIGSET_T: Signals being ignored. */
ki_sigset_t p_sigcatch; /* SIGSET_T: Signals being caught by user. */
int8_t p_stat; /* CHAR: S* process status (from LWP). */
uint8_t p_priority; /* U_CHAR: Process priority. */
uint8_t p_usrpri; /* U_CHAR: User-priority based on p_cpu and p_nice. */
uint8_t p_nice; /* U_CHAR: Process "nice" value. */
uint16_t p_xstat; /* U_SHORT: Exit status for wait; also stop signal. */
uint16_t p_acflag; /* U_SHORT: Accounting flags. */
char p_comm[KI_MAXCOMLEN];
char p_wmesg[KI_WMESGLEN]; /* wchan message */
uint64_t p_wchan; /* PTR: sleep address. */
char p_login[KI_MAXLOGNAME]; /* setlogin() name */
int32_t p_vm_rssize; /* SEGSZ_T: current resident set size in pages */
int32_t p_vm_tsize; /* SEGSZ_T: text size (pages) */
int32_t p_vm_dsize; /* SEGSZ_T: data size (pages) */
int32_t p_vm_ssize; /* SEGSZ_T: stack size (pages) */
int64_t p_uvalid; /* CHAR: following p_u* members from struct user are valid */
/* XXX 64 bits for alignment */
uint32_t p_ustart_sec; /* STRUCT TIMEVAL: starting time. */
uint32_t p_ustart_usec; /* STRUCT TIMEVAL: starting time. */
uint32_t p_uutime_sec; /* STRUCT TIMEVAL: user time. */
uint32_t p_uutime_usec; /* STRUCT TIMEVAL: user time. */
uint32_t p_ustime_sec; /* STRUCT TIMEVAL: system time. */
uint32_t p_ustime_usec; /* STRUCT TIMEVAL: system time. */
uint64_t p_uru_maxrss; /* LONG: max resident set size. */
uint64_t p_uru_ixrss; /* LONG: integral shared memory size. */
uint64_t p_uru_idrss; /* LONG: integral unshared data ". */
uint64_t p_uru_isrss; /* LONG: integral unshared stack ". */
uint64_t p_uru_minflt; /* LONG: page reclaims. */
uint64_t p_uru_majflt; /* LONG: page faults. */
uint64_t p_uru_nswap; /* LONG: swaps. */
uint64_t p_uru_inblock; /* LONG: block input operations. */
uint64_t p_uru_oublock; /* LONG: block output operations. */
uint64_t p_uru_msgsnd; /* LONG: messages sent. */
uint64_t p_uru_msgrcv; /* LONG: messages received. */
uint64_t p_uru_nsignals; /* LONG: signals received. */
uint64_t p_uru_nvcsw; /* LONG: voluntary context switches. */
uint64_t p_uru_nivcsw; /* LONG: involuntary ". */
uint32_t p_uctime_sec; /* STRUCT TIMEVAL: child u+s time. */
uint32_t p_uctime_usec; /* STRUCT TIMEVAL: child u+s time. */
uint64_t p_cpuid; /* LONG: CPU id */
uint64_t p_realflag; /* INT: P_* flags (not including LWPs). */
uint64_t p_nlwps; /* LONG: Number of LWPs */
uint64_t p_nrlwps; /* LONG: Number of running LWPs */
uint64_t p_realstat; /* LONG: non-LWP process status */
uint32_t p_svuid; /* UID_T: saved user id */
uint32_t p_svgid; /* GID_T: saved group id */
char p_ename[KI_MAXEMULLEN]; /* emulation name */
int64_t p_vm_vsize; /* SEGSZ_T: total map size (pages) */
int64_t p_vm_msize; /* SEGSZ_T: stack-adjusted map size (pages) */
};
/*
* Compat flags for kinfo_proc, kinfo_proc2. Not guarenteed to be stable.
* Some of them used to be shared with LWP flags.
* XXXAD Trim to the minimum necessary...
*/
#define P_ADVLOCK 0x00000001
#define P_CONTROLT 0x00000002
#define L_INMEM 0x00000004
#define P_INMEM /* 0x00000004 */ L_INMEM
#define P_NOCLDSTOP 0x00000008
#define P_PPWAIT 0x00000010
#define P_PROFIL 0x00000020
#define L_SELECT 0x00000040
#define P_SELECT /* 0x00000040 */ L_SELECT
#define L_SINTR 0x00000080
#define P_SINTR /* 0x00000080 */ L_SINTR
#define P_SUGID 0x00000100
#define P_SYSTEM 0x00000200
#define L_SA 0x00000400
#define P_SA /* 0x00000400 */ L_SA
#define P_TRACED 0x00000800
#define P_WAITED 0x00001000
#define P_WEXIT 0x00002000
#define P_EXEC 0x00004000
#define P_OWEUPC 0x00008000
#define P_FSTRACE 0x00010000
#define P_NOCLDWAIT 0x00020000
#define P_32 0x00040000
#define P_CLDSIGIGN 0x00080000
#define P_SYSTRACE 0x00200000
#define P_CHTRACED 0x00400000
#define P_STOPFORK 0x00800000
#define P_STOPEXEC 0x01000000
#define P_STOPEXIT 0x02000000
#define P_SYSCALL 0x04000000
#define P_PAXMPROTECT 0x08000000
#define P_PAXNOMPROTECT 0x10000000
/*
* LWP compat flags.
*/
#define L_DETACHED 0x00800000
/*
* KERN_LWP structure. See notes on KERN_PROC2 about adding elements.
*/
struct kinfo_lwp {
uint64_t l_forw; /* PTR: linked run/sleep queue. */
uint64_t l_back;
uint64_t l_laddr; /* PTR: Address of LWP */
uint64_t l_addr; /* PTR: Kernel virtual addr of u-area */
int32_t l_lid; /* LWPID_T: LWP identifier */
int32_t l_flag; /* INT: L_* flags. */
uint32_t l_swtime; /* U_INT: Time swapped in or out. */
uint32_t l_slptime; /* U_INT: Time since last blocked. */
int32_t l_schedflags; /* INT: PSCHED_* flags */
int32_t l_holdcnt; /* INT: If non-zero, don't swap. */
uint8_t l_priority; /* U_CHAR: Process priority. */
uint8_t l_usrpri; /* U_CHAR: User-priority based on l_cpu and p_nice. */
int8_t l_stat; /* CHAR: S* process status. */
int8_t l_pad1; /* fill out to 4-byte boundary */
int32_t l_pad2; /* .. and then to an 8-byte boundary */
char l_wmesg[KI_WMESGLEN]; /* wchan message */
uint64_t l_wchan; /* PTR: sleep address. */
uint64_t l_cpuid; /* LONG: CPU id */
uint32_t l_rtime_sec; /* STRUCT TIMEVAL: Real time. */
uint32_t l_rtime_usec; /* STRUCT TIMEVAL: Real time. */
uint32_t l_cpticks; /* INT: ticks during l_swtime */
uint32_t l_pctcpu; /* FIXPT_T: cpu usage for ps */
uint32_t l_pid; /* PID_T: process identifier */
char l_name[KI_LNAMELEN]; /* CHAR[]: name, may be empty */
};
/*
* KERN_PROC_ARGS subtypes
*/
#define KERN_PROC_ARGV 1 /* argv */
#define KERN_PROC_NARGV 2 /* number of strings in above */
#define KERN_PROC_ENV 3 /* environ */
#define KERN_PROC_NENV 4 /* number of strings in above */
/*
* KERN_SYSVIPC subtypes
*/
#define KERN_SYSVIPC_INFO 1 /* struct: number of valid kern ids */
#define KERN_SYSVIPC_MSG 2 /* int: SysV message queue suppoprt */
#define KERN_SYSVIPC_SEM 3 /* int: SysV semaphore support */
#define KERN_SYSVIPC_SHM 4 /* int: SysV shared memory support */
#define KERN_SYSVIPC_SHMMAX 5 /* int: max shared memory segment size (bytes) */
#define KERN_SYSVIPC_SHMMNI 6 /* int: max number of shared memory identifiers */
#define KERN_SYSVIPC_SHMSEG 7 /* int: max shared memory segments per process */
#define KERN_SYSVIPC_SHMMAXPGS 8 /* int: max amount of shared memory (pages) */
#define KERN_SYSVIPC_SHMUSEPHYS 9 /* int: physical memory usage */
/*
* KERN_SYSVIPC_INFO subtypes
*/
#define KERN_SYSVIPC_MSG_INFO 1 /* msginfo and msqid_ds */
#define KERN_SYSVIPC_SEM_INFO 2 /* seminfo and semid_ds */
#define KERN_SYSVIPC_SHM_INFO 3 /* shminfo and shmid_ds */
/*
* tty counter sysctl variables
*/
#define KERN_TKSTAT_NIN 1 /* total input character */
#define KERN_TKSTAT_NOUT 2 /* total output character */
#define KERN_TKSTAT_CANCC 3 /* canonical input character */
#define KERN_TKSTAT_RAWCC 4 /* raw input character */
#define KERN_TKSTAT_MAXID 5 /* number of valid TKSTAT ids */
#define KERN_TKSTAT_NAMES { \
{ 0, 0 }, \
{ "nin", CTLTYPE_QUAD }, \
{ "nout", CTLTYPE_QUAD }, \
{ "cancc", CTLTYPE_QUAD }, \
{ "rawcc", CTLTYPE_QUAD }, \
}
/*
* kern.drivers returns an array of these.
*/
struct kinfo_drivers {
int32_t d_cmajor;
int32_t d_bmajor;
char d_name[24];
};
/*
* KERN_BUF subtypes, like KERN_PROC2, where the four following mib
* entries specify "which type of buf", "which particular buf",
* "sizeof buf", and "how many". Currently, only "all buf" is
* defined.
*/
#define KERN_BUF_ALL 0 /* all buffers */
/*
* kern.buf returns an array of these structures, which are designed
* both to be immune to 32/64 bit emulation issues and to provide
* backwards compatibility. Note that the order here differs slightly
* from the real struct buf in order to achieve proper 64 bit
* alignment.
*/
struct buf_sysctl {
uint32_t b_flags; /* LONG: B_* flags */
int32_t b_error; /* INT: Errno value */
int32_t b_prio; /* INT: Hint for buffer queue discipline */
uint32_t b_dev; /* DEV_T: Device associated with buffer */
uint64_t b_bufsize; /* LONG: Allocated buffer size */
uint64_t b_bcount; /* LONG: Valid bytes in buffer */
uint64_t b_resid; /* LONG: Remaining I/O */
uint64_t b_addr; /* CADDR_T: Memory, superblocks, indirect... */
uint64_t b_blkno; /* DADDR_T: Underlying physical block number */
uint64_t b_rawblkno; /* DADDR_T: Raw underlying physical block */
uint64_t b_iodone; /* PTR: Function called upon completion */
uint64_t b_proc; /* PTR: Associated proc if B_PHYS set */
uint64_t b_vp; /* PTR: File vnode */
uint64_t b_saveaddr; /* PTR: Original b_addr for physio */
uint64_t b_lblkno; /* DADDR_T: Logical block number */
};
/*
* kern.file2 returns an array of these structures, which are designed
* both to be immune to be immune to 32/64 bit emulation issues and to
* provide backwards compatibility. The order differs slightly from
* that of the real struct file, and some fields are taken from other
* structures (struct vnode, struct proc) in order to make the file
* information more useful.
*/
struct kinfo_file {
uint64_t ki_fileaddr; /* PTR: address of struct file */
uint32_t ki_flag; /* INT: flags (see fcntl.h) */
uint32_t ki_iflags; /* INT: internal flags */
uint32_t ki_ftype; /* INT: descriptor type */
uint32_t ki_count; /* UINT: reference count */
uint32_t ki_msgcount; /* UINT: references from msg queue */
uint32_t ki_usecount; /* INT: number active users */
uint64_t ki_fucred; /* PTR: creds for descriptor */
uint32_t ki_fuid; /* UID_T: descriptor credentials */
uint32_t ki_fgid; /* GID_T: descriptor credentials */
uint64_t ki_fops; /* PTR: address of fileops */
uint64_t ki_foffset; /* OFF_T: offset */
uint64_t ki_fdata; /* PTR: descriptor data */
/* vnode information to glue this file to something */
uint64_t ki_vun; /* PTR: socket, specinfo, etc */
uint64_t ki_vsize; /* OFF_T: size of file */
uint32_t ki_vtype; /* ENUM: vnode type */
uint32_t ki_vtag; /* ENUM: type of underlying data */
uint64_t ki_vdata; /* PTR: private data for fs */
/* process information when retrieved via KERN_FILE_BYPID */
uint32_t ki_pid; /* PID_T: process id */
int32_t ki_fd; /* INT: descriptor number */
uint32_t ki_ofileflags; /* CHAR: open file flags */
uint32_t _ki_padto64bits;
};
#define KERN_FILE_BYFILE 1
#define KERN_FILE_BYPID 2
#define KERN_FILESLOP 10
/*
* 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 (bytes) */
#define HW_USERMEM 6 /* int: non-kernel memory (bytes) */
#define HW_PAGESIZE 7 /* int: software page size */
#define HW_DISKNAMES 8 /* string: disk drive names */
#define HW_IOSTATS 9 /* struct: iostats[] */
#define HW_MACHINE_ARCH 10 /* string: machine architecture */
#define HW_ALIGNBYTES 11 /* int: ALIGNBYTES for the kernel */
#define HW_CNMAGIC 12 /* string: console magic sequence(s) */
#define HW_PHYSMEM64 13 /* quad: total memory (bytes) */
#define HW_USERMEM64 14 /* quad: non-kernel memory (bytes) */
#define HW_IOSTATNAMES 15 /* string: iostat names */
#define HW_MAXID 15 /* number of valid hw ids */
#define HW_NCPUONLINE 16 /* number CPUs online */
#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 }, \
{ "drivenames", CTLTYPE_STRING }, \
{ "drivestats", CTLTYPE_STRUCT }, \
{ "machine_arch", CTLTYPE_STRING }, \
{ "alignbytes", CTLTYPE_INT }, \
{ "cnmagic", CTLTYPE_STRING }, \
{ "physmem64", CTLTYPE_QUAD }, \
{ "usermem64", CTLTYPE_QUAD }, \
{ "ncpuonline", 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: _POSIX_TZNAME_MAX */
#define USER_ATEXIT_MAX 21 /* int: {ATEXIT_MAX} */
#define USER_MAXID 22 /* 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 }, \
{ "atexit_max", CTLTYPE_INT }, \
}
/*
* CTL_DDB definitions
*/
#define DDBCTL_RADIX 1 /* int: Input and output radix */
#define DDBCTL_MAXOFF 2 /* int: max symbol offset */
#define DDBCTL_MAXWIDTH 3 /* int: width of the display line */
#define DDBCTL_LINES 4 /* int: number of display lines */
#define DDBCTL_TABSTOPS 5 /* int: tab width */
#define DDBCTL_ONPANIC 6 /* int: DDB on panic if non-zero */
#define DDBCTL_FROMCONSOLE 7 /* int: DDB via console if non-zero */
#define DDBCTL_MAXID 8 /* number of valid DDB ids */
#define CTL_DDB_NAMES { \
{ 0, 0 }, \
{ "radix", CTLTYPE_INT }, \
{ "maxoff", CTLTYPE_INT }, \
{ "maxwidth", CTLTYPE_INT }, \
{ "lines", CTLTYPE_INT }, \
{ "tabstops", CTLTYPE_INT }, \
{ "onpanic", CTLTYPE_INT }, \
{ "fromconsole", CTLTYPE_INT }, \
}
/*
* CTL_DEBUG definitions
*
* Second level identifier specifies which debug variable.
* Third level identifier specifies which structure component.
*/
#define CTL_DEBUG_NAME 0 /* string: variable name */
#define CTL_DEBUG_VALUE 1 /* int: variable value */
#define CTL_DEBUG_MAXID 20
/*
* CTL_PROC subtype. Either a PID, or a magic value for the current proc.
*/
#define PROC_CURPROC (~((u_int)1 << 31))
/*
* CTL_PROC tree: either corename (string), or a limit
* (rlimit.<type>.{hard,soft}, int).
*/
#define PROC_PID_CORENAME 1
#define PROC_PID_LIMIT 2
#define PROC_PID_STOPFORK 3
#define PROC_PID_STOPEXEC 4
#define PROC_PID_STOPEXIT 5
#define PROC_PID_MAXID 6
#define PROC_PID_NAMES { \
{ 0, 0 }, \
{ "corename", CTLTYPE_STRING }, \
{ "rlimit", CTLTYPE_NODE }, \
{ "stopfork", CTLTYPE_INT }, \
{ "stopexec", CTLTYPE_INT }, \
{ "stopexit", CTLTYPE_INT }, \
}
/* Limit types from <sys/resources.h> */
#define PROC_PID_LIMIT_CPU (RLIMIT_CPU+1)
#define PROC_PID_LIMIT_FSIZE (RLIMIT_FSIZE+1)
#define PROC_PID_LIMIT_DATA (RLIMIT_DATA+1)
#define PROC_PID_LIMIT_STACK (RLIMIT_STACK+1)
#define PROC_PID_LIMIT_CORE (RLIMIT_CORE+1)
#define PROC_PID_LIMIT_RSS (RLIMIT_RSS+1)
#define PROC_PID_LIMIT_MEMLOCK (RLIMIT_MEMLOCK+1)
#define PROC_PID_LIMIT_NPROC (RLIMIT_NPROC+1)
#define PROC_PID_LIMIT_NOFILE (RLIMIT_NOFILE+1)
#define PROC_PID_LIMIT_SBSIZE (RLIMIT_SBSIZE+1)
#define PROC_PID_LIMIT_AS (RLIMIT_AS+1)
#define PROC_PID_LIMIT_MAXID (RLIM_NLIMITS+1)
#define PROC_PID_LIMIT_NAMES { \
{ 0, 0 }, \
{ "cputime", CTLTYPE_NODE }, \
{ "filesize", CTLTYPE_NODE }, \
{ "datasize", CTLTYPE_NODE }, \
{ "stacksize", CTLTYPE_NODE }, \
{ "coredumpsize", CTLTYPE_NODE }, \
{ "memoryuse", CTLTYPE_NODE }, \
{ "memorylocked", CTLTYPE_NODE }, \
{ "maxproc", CTLTYPE_NODE }, \
{ "descriptors", CTLTYPE_NODE }, \
{ "sbsize", CTLTYPE_NODE }, \
{ "vmemoryuse", CTLTYPE_NODE }, \
}
/* for each type, either hard or soft value */
#define PROC_PID_LIMIT_TYPE_SOFT 1
#define PROC_PID_LIMIT_TYPE_HARD 2
#define PROC_PID_LIMIT_TYPE_MAXID 3
#define PROC_PID_LIMIT_TYPE_NAMES { \
{0, 0}, \
{ "soft", CTLTYPE_QUAD }, \
{ "hard", CTLTYPE_QUAD }, \
}
/*
* CTL_EMUL definitions
*
* Second level identifier specifies which emulation variable.
* Subsequent levels are specified in the emulations themselves.
*/
#define EMUL_LINUX 1
#define EMUL_IRIX 2
#define EMUL_DARWIN 3
#define EMUL_MACH 4
#define EMUL_LINUX32 5
#define EMUL_MAXID 6
#define CTL_EMUL_NAMES { \
{ 0, 0 }, \
{ "linux", CTLTYPE_NODE }, \
{ "irix", CTLTYPE_NODE }, \
{ "darwin", CTLTYPE_NODE }, \
{ "mach", CTLTYPE_NODE }, \
{ "linux32", CTLTYPE_NODE }, \
}
#ifdef _KERNEL
#if defined(_KERNEL_OPT)
#include "opt_sysctl.h"
#endif
/* Root node of the kernel sysctl tree */
extern struct sysctlnode sysctl_root;
/*
* A log of nodes created by a setup function or set of setup
* functions so that they can be torn down in one "transaction"
* when no longer needed.
*
* Users of the log merely pass a pointer to a pointer, and the sysctl
* infrastructure takes care of the rest.
*/
struct sysctllog;
/*
* CTL_DEBUG variables.
*
* These are declared as separate variables so that they can be
* individually initialized at the location of their associated
* variable. The loader prevents multiple use by issuing errors
* if a variable is initialized in more than one place. They are
* aggregated into an array in debug_sysctl(), so that it can
* conveniently locate them when querried. If more debugging
* variables are added, they must also be declared here and also
* entered into the array.
*
* Note that the debug subtree is largely obsolescent in terms of
* functionality now that we have dynamic sysctl, but the
* infrastructure is retained for backwards compatibility.
*/
struct ctldebug {
const char *debugname; /* name of debugging variable */
int *debugvar; /* pointer to debugging variable */
};
#ifdef DEBUG
extern struct ctldebug debug0, debug1, debug2, debug3, debug4;
extern struct ctldebug debug5, debug6, debug7, debug8, debug9;
extern struct ctldebug debug10, debug11, debug12, debug13, debug14;
extern struct ctldebug debug15, debug16, debug17, debug18, debug19;
#endif /* DEBUG */
#define SYSCTLFN_PROTO const int *, u_int, void *, \
size_t *, const void *, size_t, \
const int *, struct lwp *, const struct sysctlnode *
#define SYSCTLFN_ARGS const int *name, u_int namelen, \
void *oldp, size_t *oldlenp, \
const void *newp, size_t newlen, \
const int *oname, struct lwp *l, \
const struct sysctlnode *rnode
#define SYSCTLFN_CALL(node) name, namelen, oldp, \
oldlenp, newp, newlen, \
oname, l, node
#ifdef _LKM
#define SYSCTL_SETUP_PROTO(name) \
void name(struct sysctllog **)
#ifdef SYSCTL_DEBUG_SETUP
#define SYSCTL_SETUP(name, desc) \
SYSCTL_SETUP_PROTO(name); \
static void __CONCAT(___,name)(struct sysctllog **); \
void name(struct sysctllog **clog) { \
printf("%s\n", desc); \
__CONCAT(___,name)(clog); } \
__link_set_add_text(sysctl_funcs, name); \
static void __CONCAT(___,name)(struct sysctllog **clog)
#else /* !SYSCTL_DEBUG_SETUP */
#define SYSCTL_SETUP(name, desc) \
SYSCTL_SETUP_PROTO(name); \
__link_set_add_text(sysctl_funcs, name); \
void name(struct sysctllog **clog)
#endif /* !SYSCTL_DEBUG_SETUP */
#else /* !_LKM */
#define SYSCTL_SETUP_PROTO(name)
#ifdef SYSCTL_DEBUG_SETUP
#define SYSCTL_SETUP(name, desc) \
static void __CONCAT(___,name)(struct sysctllog **); \
static void name(struct sysctllog **clog) { \
printf("%s\n", desc); \
__CONCAT(___,name)(clog); } \
__link_set_add_text(sysctl_funcs, name); \
static void __CONCAT(___,name)(struct sysctllog **clog)
#else /* !SYSCTL_DEBUG_SETUP */
#define SYSCTL_SETUP(name, desc) \
static void name(struct sysctllog **); \
__link_set_add_text(sysctl_funcs, name); \
static void name(struct sysctllog **clog)
#endif /* !SYSCTL_DEBUG_SETUP */
typedef void (*sysctl_setup_func)(struct sysctllog **);
#endif /* !_LKM */
/*
* Internal sysctl function calling convention:
*
* (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen,
* origname, lwp, node);
*
* The name parameter points at the next component of the name to be
* interpreted. The namelen parameter is the number of integers in
* the name. The origname parameter points to the start of the name
* being parsed. The node parameter points to the node on which the
* current operation is to be performed.
*/
typedef int (*sysctlfn)(SYSCTLFN_PROTO);
/*
* used in more than just sysctl
*/
void fill_eproc(struct proc *, struct eproc *, bool);
/*
* subsystem setup
*/
void sysctl_init(void);
/*
* typical syscall call order
*/
void sysctl_lock(bool);
int sysctl_dispatch(SYSCTLFN_PROTO);
void sysctl_unlock(void);
void sysctl_relock(void);
/*
* tree navigation primitives (must obtain lock before using these)
*/
int sysctl_locate(struct lwp *, const int *, u_int,
const struct sysctlnode **, int *);
int sysctl_query(SYSCTLFN_PROTO);
int sysctl_create(SYSCTLFN_PROTO);
int sysctl_destroy(SYSCTLFN_PROTO);
int sysctl_lookup(SYSCTLFN_PROTO);
int sysctl_describe(SYSCTLFN_PROTO);
/*
* simple variadic interface for adding/removing nodes
*/
int sysctl_createv(struct sysctllog **, int,
const struct sysctlnode **, const struct sysctlnode **,
int, int, const char *, const char *,
sysctlfn, u_quad_t, void *, size_t, ...);
int sysctl_destroyv(struct sysctlnode *, ...);
/*
* miscellany
*/
void sysctl_dump(const struct sysctlnode *);
void sysctl_free(struct sysctlnode *);
void sysctl_teardown(struct sysctllog **);
#ifdef SYSCTL_INCLUDE_DESCR
#define SYSCTL_DESCR(s) s
#else /* SYSCTL_INCLUDE_DESCR */
#define SYSCTL_DESCR(s) NULL
#endif /* SYSCTL_INCLUDE_DESCR */
/*
* simple interface similar to old interface for in-kernel consumption
*/
int old_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct lwp *);
/*
* these helpers are in other files (XXX so should the nodes be) or
* are used by more than one node
*/
int sysctl_hw_tapenames(SYSCTLFN_PROTO);
int sysctl_hw_tapestats(SYSCTLFN_PROTO);
int sysctl_kern_vnode(SYSCTLFN_PROTO);
int sysctl_net_inet_ip_ports(SYSCTLFN_PROTO);
int sysctl_consdev(SYSCTLFN_PROTO);
int sysctl_root_device(SYSCTLFN_PROTO);
/*
* primitive helper stubs
*/
int sysctl_needfunc(SYSCTLFN_PROTO);
int sysctl_notavail(SYSCTLFN_PROTO);
int sysctl_null(SYSCTLFN_PROTO);
MALLOC_DECLARE(M_SYSCTLNODE);
MALLOC_DECLARE(M_SYSCTLDATA);
#else /* !_KERNEL */
#include <sys/cdefs.h>
typedef void *sysctlfn;
__BEGIN_DECLS
int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
int sysctlbyname(const char *, void *, size_t *, void *, size_t);
int sysctlgetmibinfo(const char *, int *, u_int *,
char *, size_t *, struct sysctlnode **, int);
int sysctlnametomib(const char *, int *, size_t *);
__END_DECLS
#endif /* !_KERNEL */
#ifdef __COMPAT_SYSCTL
/*
* old node definitions go here
*/
#endif /* __COMPAT_SYSCTL */
/*
* padding makes alignment magically "work" for 32/64 compatibility at
* the expense of making things bigger on 32 bit platforms.
*/
#if defined(_LP64) || (BYTE_ORDER == LITTLE_ENDIAN)
#define __sysc_pad(type) union { uint64_t __sysc_upad; \
struct { type __sysc_sdatum; } __sysc_ustr; }
#else
#define __sysc_pad(type) union { uint64_t __sysc_upad; \
struct { uint32_t __sysc_spad; type __sysc_sdatum; } __sysc_ustr; }
#endif
#define __sysc_unpad(x) x.__sysc_ustr.__sysc_sdatum
/*
* The following is for gcc2, which doesn't handle __sysc_unpad().
* The code gets a little less ugly this way.
*/
#define sysc_init_field(field, value) \
.field = { .__sysc_ustr = { .__sysc_sdatum = (value), }, }
struct sysctlnode {
uint32_t sysctl_flags; /* flags and type */
int32_t sysctl_num; /* mib number */
char sysctl_name[SYSCTL_NAMELEN]; /* node name */
uint32_t sysctl_ver; /* node's version vs. rest of tree */
uint32_t __rsvd;
union {
struct {
uint32_t suc_csize; /* size of child node array */
uint32_t suc_clen; /* number of valid children */
__sysc_pad(struct sysctlnode*) _suc_child; /* array of child nodes */
} scu_child;
struct {
__sysc_pad(void*) _sud_data; /* pointer to external data */
__sysc_pad(size_t) _sud_offset; /* offset to data */
} scu_data;
int32_t scu_alias; /* node this node refers to */
int32_t scu_idata; /* immediate "int" data */
u_quad_t scu_qdata; /* immediate "u_quad_t" data */
bool scu_bdata; /* immediate bool data */
} sysctl_un;
__sysc_pad(size_t) _sysctl_size; /* size of instrumented data */
__sysc_pad(sysctlfn) _sysctl_func; /* access helper function */
__sysc_pad(struct sysctlnode*) _sysctl_parent; /* parent of this node */
__sysc_pad(const char *) _sysctl_desc; /* description of node */
};
/*
* padded data
*/
#define suc_child __sysc_unpad(_suc_child)
#define sud_data __sysc_unpad(_sud_data)
#define sud_offset __sysc_unpad(_sud_offset)
#define sysctl_size __sysc_unpad(_sysctl_size)
#define sysctl_func __sysc_unpad(_sysctl_func)
#define sysctl_parent __sysc_unpad(_sysctl_parent)
#define sysctl_desc __sysc_unpad(_sysctl_desc)
/*
* nested data (may also be padded)
*/
#define sysctl_csize sysctl_un.scu_child.suc_csize
#define sysctl_clen sysctl_un.scu_child.suc_clen
#define sysctl_child sysctl_un.scu_child.suc_child
#define sysctl_data sysctl_un.scu_data.sud_data
#define sysctl_offset sysctl_un.scu_data.sud_offset
#define sysctl_alias sysctl_un.scu_alias
#define sysctl_idata sysctl_un.scu_idata
#define sysctl_qdata sysctl_un.scu_qdata
#define sysctl_bdata sysctl_un.scu_bdata
/*
* when requesting a description of a node (a set of nodes, actually),
* you get back an "array" of these, where the actual length of the
* descr_str is noted in descr_len (which includes the trailing nul
* byte), rounded up to the nearest four (sizeof(int32_t) actually).
*
* NEXT_DESCR() will take a pointer to a description and advance it to
* the next description.
*/
struct sysctldesc {
int32_t descr_num; /* mib number of node */
uint32_t descr_ver; /* version of node */
uint32_t descr_len; /* length of description string */
char descr_str[1]; /* not really 1...see above */
};
#define __sysc_desc_roundup(x) ((((x) - 1) | (sizeof(int32_t) - 1)) + 1)
#define __sysc_desc_adv(d, l) \
(/*XXXUNCONST ptr cast*/(struct sysctldesc *) \
__UNCONST(((const char*)(d)) + offsetof(struct sysctldesc, descr_str) +\
__sysc_desc_roundup(l)))
#define NEXT_DESCR(d) __sysc_desc_adv((d), (d)->descr_len)
static __inline const struct sysctlnode *
sysctl_rootof(const struct sysctlnode *n)
{
while (n->sysctl_parent != NULL)
n = n->sysctl_parent;
return (n);
}
#endif /* !_SYS_SYSCTL_H_ */