1/* $NetBSD: sysctl.h,v 1.221 2016/04/04 23:31:46 christos Exp $ */
2
3/*
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Mike Karels at Berkeley Software Design, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
35 */
36
37#ifndef _SYS_SYSCTL_H_
38#define _SYS_SYSCTL_H_
39
40#include <sys/param.h> /* precautionary upon removal from ucred.h */
41#include <sys/proc.h> /* Needed for things like P_ZOMBIE() and LW_SINTR */
42#include <uvm/uvm_param.h>
43
44#if defined(_KERNEL) || defined(_KMEMUSER)
45/*
46 * These are for the eproc structure defined below.
47 */
48#include <sys/time.h>
49#include <sys/ucred.h>
50#include <sys/ucontext.h>
51#include <sys/mallocvar.h>
52#include <uvm/uvm_extern.h>
53#endif
54
55
56/* For offsetof() */
57#if defined(_KERNEL) || defined(_STANDALONE)
58#include <sys/systm.h>
59#else
60#include <stddef.h>
61#include <stdbool.h>
62#endif
63
64/*
65 * Definitions for sysctl call. The sysctl call uses a hierarchical name
66 * for objects that can be examined or modified. The name is expressed as
67 * a sequence of integers. Like a file path name, the meaning of each
68 * component depends on its place in the hierarchy. The top-level and kern
69 * identifiers are defined here, and other identifiers are defined in the
70 * respective subsystem header files.
71 */
72
73struct sysctlnode;
74
75#define CTL_MAXNAME 12 /* largest number of components supported */
76#define SYSCTL_NAMELEN 32 /* longest name allowed for a node */
77
78#define CREATE_BASE (1024) /* start of dynamic mib allocation */
79#define SYSCTL_DEFSIZE 8 /* initial size of a child set */
80
81/*
82 * Each subsystem defined by sysctl defines a list of variables
83 * for that subsystem. Each name is either a node with further
84 * levels defined below it, or it is a leaf of some particular
85 * type given below. Each sysctl level defines a set of name/type
86 * pairs to be used by sysctl(1) in manipulating the subsystem.
87 */
88struct ctlname {
89 const char *ctl_name; /* subsystem name */
90 int ctl_type; /* type of name */
91};
92#define CTLTYPE_NODE 1 /* name is a node */
93#define CTLTYPE_INT 2 /* name describes an integer */
94#define CTLTYPE_STRING 3 /* name describes a string */
95#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
96#define CTLTYPE_STRUCT 5 /* name describes a structure */
97#define CTLTYPE_BOOL 6 /* name describes a bool */
98
99#ifdef _LP64
100#define CTLTYPE_LONG CTLTYPE_QUAD
101#else
102#define CTLTYPE_LONG CTLTYPE_INT
103#endif
104
105/*
106 * Flags that apply to each node, governing access and other features
107 */
108#define CTLFLAG_READONLY 0x00000000
109/* #define CTLFLAG_UNUSED1 0x00000010 */
110/* #define CTLFLAG_UNUSED2 0x00000020 */
111/* #define CTLFLAG_READ* 0x00000040 */
112#define CTLFLAG_READWRITE 0x00000070
113#define CTLFLAG_ANYWRITE 0x00000080
114#define CTLFLAG_PRIVATE 0x00000100
115#define CTLFLAG_PERMANENT 0x00000200
116#define CTLFLAG_OWNDATA 0x00000400
117#define CTLFLAG_IMMEDIATE 0x00000800
118#define CTLFLAG_HEX 0x00001000
119#define CTLFLAG_ROOT 0x00002000
120#define CTLFLAG_ANYNUMBER 0x00004000
121#define CTLFLAG_HIDDEN 0x00008000
122#define CTLFLAG_ALIAS 0x00010000
123#define CTLFLAG_MMAP 0x00020000
124#define CTLFLAG_OWNDESC 0x00040000
125#define CTLFLAG_UNSIGNED 0x00080000
126
127/*
128 * sysctl API version
129 */
130#define SYSCTL_VERS_MASK 0xff000000
131#define SYSCTL_VERS_0 0x00000000
132#define SYSCTL_VERS_1 0x01000000
133#define SYSCTL_VERSION SYSCTL_VERS_1
134#define SYSCTL_VERS(f) ((f) & SYSCTL_VERS_MASK)
135
136/*
137 * Flags that can be set by a create request from user-space
138 */
139#define SYSCTL_USERFLAGS (CTLFLAG_READWRITE|\
140 CTLFLAG_ANYWRITE|\
141 CTLFLAG_PRIVATE|\
142 CTLFLAG_OWNDATA|\
143 CTLFLAG_IMMEDIATE|\
144 CTLFLAG_HEX|\
145 CTLFLAG_HIDDEN)
146
147/*
148 * Accessor macros
149 */
150#define SYSCTL_TYPEMASK 0x0000000f
151#define SYSCTL_TYPE(x) ((x) & SYSCTL_TYPEMASK)
152#define SYSCTL_FLAGMASK 0x00fffff0
153#define SYSCTL_FLAGS(x) ((x) & SYSCTL_FLAGMASK)
154
155/*
156 * Meta-identifiers
157 */
158#define CTL_EOL (-1) /* end of createv/destroyv list */
159#define CTL_QUERY (-2) /* enumerates children of a node */
160#define CTL_CREATE (-3) /* node create request */
161#define CTL_CREATESYM (-4) /* node create request with symbol */
162#define CTL_DESTROY (-5) /* node destroy request */
163#define CTL_MMAP (-6) /* mmap request */
164#define CTL_DESCRIBE (-7) /* get node descriptions */
165
166/*
167 * Top-level identifiers
168 */
169#define CTL_UNSPEC 0 /* unused */
170#define CTL_KERN 1 /* "high kernel": proc, limits */
171#define CTL_VM 2 /* virtual memory */
172#define CTL_VFS 3 /* file system, mount type is next */
173#define CTL_NET 4 /* network, see socket.h */
174#define CTL_DEBUG 5 /* debugging parameters */
175#define CTL_HW 6 /* generic CPU/io */
176#define CTL_MACHDEP 7 /* machine dependent */
177#define CTL_USER 8 /* user-level */
178#define CTL_DDB 9 /* in-kernel debugger */
179#define CTL_PROC 10 /* per-proc attr */
180#define CTL_VENDOR 11 /* vendor-specific data */
181#define CTL_EMUL 12 /* emulation-specific data */
182#define CTL_SECURITY 13 /* security */
183#define CTL_MAXID 14 /* number of valid top-level ids */
184
185/*
186 * The "vendor" toplevel name is to be used by vendors who wish to
187 * have their own private MIB tree. If you do that, please use
188 * vendor.<yourname>.*
189 */
190
191/*
192 * CTL_KERN identifiers
193 */
194#define KERN_OSTYPE 1 /* string: system version */
195#define KERN_OSRELEASE 2 /* string: system release */
196#define KERN_OSREV 3 /* int: system revision */
197#define KERN_VERSION 4 /* string: compile time info */
198#define KERN_MAXVNODES 5 /* int: max vnodes */
199#define KERN_MAXPROC 6 /* int: max processes */
200#define KERN_MAXFILES 7 /* int: max open files */
201#define KERN_ARGMAX 8 /* int: max arguments to exec */
202#define KERN_SECURELVL 9 /* int: system security level */
203#define KERN_HOSTNAME 10 /* string: hostname */
204#define KERN_HOSTID 11 /* int: host identifier */
205#define KERN_CLOCKRATE 12 /* struct: struct clockinfo */
206#define KERN_VNODE 13 /* struct: vnode structures */
207#define KERN_PROC 14 /* struct: process entries */
208#define KERN_FILE 15 /* struct: file entries */
209#define KERN_PROF 16 /* node: kernel profiling info */
210#define KERN_POSIX1 17 /* int: POSIX.1 version */
211#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
212#define KERN_JOB_CONTROL 19 /* int: is job control available */
213#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
214#define KERN_OBOOTTIME 21 /* struct: time kernel was booted */
215#define KERN_DOMAINNAME 22 /* string: (YP) domainname */
216#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */
217#define KERN_RAWPARTITION 24 /* int: raw partition number */
218#define KERN_NTPTIME 25 /* struct: extended-precision time */
219#define KERN_TIMEX 26 /* struct: ntp timekeeping state */
220#define KERN_AUTONICETIME 27 /* int: proc time before autonice */
221#define KERN_AUTONICEVAL 28 /* int: auto nice value */
222#define KERN_RTC_OFFSET 29 /* int: offset of rtc from gmt */
223#define KERN_ROOT_DEVICE 30 /* string: root device */
224#define KERN_MSGBUFSIZE 31 /* int: max # of chars in msg buffer */
225#define KERN_FSYNC 32 /* int: file synchronization support */
226#define KERN_OLDSYSVMSG 33 /* old: SysV message queue support */
227#define KERN_OLDSYSVSEM 34 /* old: SysV semaphore support */
228#define KERN_OLDSYSVSHM 35 /* old: SysV shared memory support */
229#define KERN_OLDSHORTCORENAME 36 /* old, unimplemented */
230#define KERN_SYNCHRONIZED_IO 37 /* int: POSIX synchronized I/O */
231#define KERN_IOV_MAX 38 /* int: max iovec's for readv(2) etc. */
232#define KERN_MBUF 39 /* node: mbuf parameters */
233#define KERN_MAPPED_FILES 40 /* int: POSIX memory mapped files */
234#define KERN_MEMLOCK 41 /* int: POSIX memory locking */
235#define KERN_MEMLOCK_RANGE 42 /* int: POSIX memory range locking */
236#define KERN_MEMORY_PROTECTION 43 /* int: POSIX memory protections */
237#define KERN_LOGIN_NAME_MAX 44 /* int: max length login name + NUL */
238#define KERN_DEFCORENAME 45 /* old: sort core name format */
239#define KERN_LOGSIGEXIT 46 /* int: log signaled processes */
240#define KERN_PROC2 47 /* struct: process entries */
241#define KERN_PROC_ARGS 48 /* struct: process argv/env */
242#define KERN_FSCALE 49 /* int: fixpt FSCALE */
243#define KERN_CCPU 50 /* old: fixpt ccpu */
244#define KERN_CP_TIME 51 /* struct: CPU time counters */
245#define KERN_OLDSYSVIPC_INFO 52 /* old: number of valid kern ids */
246#define KERN_MSGBUF 53 /* kernel message buffer */
247#define KERN_CONSDEV 54 /* dev_t: console terminal device */
248#define KERN_MAXPTYS 55 /* int: maximum number of ptys */
249#define KERN_PIPE 56 /* node: pipe limits */
250#define KERN_MAXPHYS 57 /* int: kernel value of MAXPHYS */
251#define KERN_SBMAX 58 /* int: max socket buffer size */
252#define KERN_TKSTAT 59 /* tty in/out counters */
253#define KERN_MONOTONIC_CLOCK 60 /* int: POSIX monotonic clock */
254#define KERN_URND 61 /* int: random integer from urandom */
255#define KERN_LABELSECTOR 62 /* int: disklabel sector */
256#define KERN_LABELOFFSET 63 /* int: offset of label within sector */
257#define KERN_LWP 64 /* struct: lwp entries */
258#define KERN_FORKFSLEEP 65 /* int: sleep length on failed fork */
259#define KERN_POSIX_THREADS 66 /* int: POSIX Threads option */
260#define KERN_POSIX_SEMAPHORES 67 /* int: POSIX Semaphores option */
261#define KERN_POSIX_BARRIERS 68 /* int: POSIX Barriers option */
262#define KERN_POSIX_TIMERS 69 /* int: POSIX Timers option */
263#define KERN_POSIX_SPIN_LOCKS 70 /* int: POSIX Spin Locks option */
264#define KERN_POSIX_READER_WRITER_LOCKS 71 /* int: POSIX R/W Locks option */
265#define KERN_DUMP_ON_PANIC 72 /* int: dump on panic */
266#define KERN_SOMAXKVA 73 /* int: max socket kernel virtual mem */
267#define KERN_ROOT_PARTITION 74 /* int: root partition */
268#define KERN_DRIVERS 75 /* struct: driver names and majors #s */
269#define KERN_BUF 76 /* struct: buffers */
270#define KERN_FILE2 77 /* struct: file entries */
271#define KERN_VERIEXEC 78 /* node: verified exec */
272#define KERN_CP_ID 79 /* struct: cpu id numbers */
273#define KERN_HARDCLOCK_TICKS 80 /* int: number of hardclock ticks */
274#define KERN_ARND 81 /* void *buf, size_t siz random */
275#define KERN_SYSVIPC 82 /* node: SysV IPC parameters */
276#define KERN_BOOTTIME 83 /* struct: time kernel was booted */
277#define KERN_EVCNT 84 /* struct: evcnts */
278#define KERN_MAXID 85 /* number of valid kern ids */
279
280
281#define CTL_KERN_NAMES { \
282 { 0, 0 }, \
283 { "ostype", CTLTYPE_STRING }, \
284 { "osrelease", CTLTYPE_STRING }, \
285 { "osrevision", CTLTYPE_INT }, \
286 { "version", CTLTYPE_STRING }, \
287 { "maxvnodes", CTLTYPE_INT }, \
288 { "maxproc", CTLTYPE_INT }, \
289 { "maxfiles", CTLTYPE_INT }, \
290 { "argmax", CTLTYPE_INT }, \
291 { "securelevel", CTLTYPE_INT }, \
292 { "hostname", CTLTYPE_STRING }, \
293 { "hostid", CTLTYPE_INT }, \
294 { "clockrate", CTLTYPE_STRUCT }, \
295 { "vnode", CTLTYPE_STRUCT }, \
296 { "proc", CTLTYPE_STRUCT }, \
297 { "file", CTLTYPE_STRUCT }, \
298 { "profiling", CTLTYPE_NODE }, \
299 { "posix1version", CTLTYPE_INT }, \
300 { "ngroups", CTLTYPE_INT }, \
301 { "job_control", CTLTYPE_INT }, \
302 { "saved_ids", CTLTYPE_INT }, \
303 { 0, 0 }, \
304 { "domainname", CTLTYPE_STRING }, \
305 { "maxpartitions", CTLTYPE_INT }, \
306 { "rawpartition", CTLTYPE_INT }, \
307 { "ntptime", CTLTYPE_STRUCT }, \
308 { "timex", CTLTYPE_STRUCT }, \
309 { "autonicetime", CTLTYPE_INT }, \
310 { "autoniceval", CTLTYPE_INT }, \
311 { "rtc_offset", CTLTYPE_INT }, \
312 { "root_device", CTLTYPE_STRING }, \
313 { "msgbufsize", CTLTYPE_INT }, \
314 { "fsync", CTLTYPE_INT }, \
315 { 0, 0 }, \
316 { 0, 0 }, \
317 { 0, 0 }, \
318 { 0, 0 }, \
319 { "synchronized_io", CTLTYPE_INT }, \
320 { "iov_max", CTLTYPE_INT }, \
321 { "mbuf", CTLTYPE_NODE }, \
322 { "mapped_files", CTLTYPE_INT }, \
323 { "memlock", CTLTYPE_INT }, \
324 { "memlock_range", CTLTYPE_INT }, \
325 { "memory_protection", CTLTYPE_INT }, \
326 { "login_name_max", CTLTYPE_INT }, \
327 { "defcorename", CTLTYPE_STRING }, \
328 { "logsigexit", CTLTYPE_INT }, \
329 { "proc2", CTLTYPE_STRUCT }, \
330 { "proc_args", CTLTYPE_STRING }, \
331 { "fscale", CTLTYPE_INT }, \
332 { 0, 0 }, \
333 { "cp_time", CTLTYPE_STRUCT }, \
334 { 0, 0 }, \
335 { "msgbuf", CTLTYPE_STRUCT }, \
336 { "consdev", CTLTYPE_STRUCT }, \
337 { "maxptys", CTLTYPE_INT }, \
338 { "pipe", CTLTYPE_NODE }, \
339 { "maxphys", CTLTYPE_INT }, \
340 { "sbmax", CTLTYPE_INT }, \
341 { "tkstat", CTLTYPE_NODE }, \
342 { "monotonic_clock", CTLTYPE_INT }, \
343 { "urandom", CTLTYPE_INT }, \
344 { "labelsector", CTLTYPE_INT }, \
345 { "labeloffset", CTLTYPE_INT }, \
346 { "lwp", CTLTYPE_STRUCT }, \
347 { "forkfsleep", CTLTYPE_INT }, \
348 { "posix_threads", CTLTYPE_INT }, \
349 { "posix_semaphores", CTLTYPE_INT }, \
350 { "posix_barriers", CTLTYPE_INT }, \
351 { "posix_timers", CTLTYPE_INT }, \
352 { "posix_spin_locks", CTLTYPE_INT }, \
353 { "posix_reader_writer_locks", CTLTYPE_INT }, \
354 { "dump_on_panic", CTLTYPE_INT}, \
355 { "somaxkva", CTLTYPE_INT}, \
356 { "root_partition", CTLTYPE_INT}, \
357 { "drivers", CTLTYPE_STRUCT }, \
358 { "buf", CTLTYPE_NODE }, \
359 { "file2", CTLTYPE_STRUCT }, \
360 { "veriexec", CTLTYPE_NODE }, \
361 { "cp_id", CTLTYPE_STRUCT }, \
362 { "hardclock_ticks", CTLTYPE_INT }, \
363 { "arandom", CTLTYPE_STRUCT }, \
364 { "sysvipc", CTLTYPE_STRUCT }, \
365 { "boottime", CTLTYPE_STRUCT }, \
366 { "evcnt", CTLTYPE_STRUCT }, \
367}
368
369/*
370 * KERN_CLOCKRATE structure
371 */
372struct clockinfo {
373 int hz; /* clock frequency */
374 int tick; /* micro-seconds per hz tick */
375 int tickadj; /* clock skew rate for adjtime() */
376 int stathz; /* statistics clock frequency */
377 int profhz; /* profiling clock frequency */
378};
379
380/*
381 * KERN_PROC subtypes
382 */
383#define KERN_PROC_ALL 0 /* everything */
384#define KERN_PROC_PID 1 /* by process id */
385#define KERN_PROC_PGRP 2 /* by process group id */
386#define KERN_PROC_SESSION 3 /* by session of pid */
387#define KERN_PROC_TTY 4 /* by controlling tty */
388#define KERN_PROC_UID 5 /* by effective uid */
389#define KERN_PROC_RUID 6 /* by real uid */
390#define KERN_PROC_GID 7 /* by effective gid */
391#define KERN_PROC_RGID 8 /* by real gid */
392
393/*
394 * KERN_PROC_TTY sub-subtypes
395 */
396#define KERN_PROC_TTY_NODEV NODEV /* no controlling tty */
397#define KERN_PROC_TTY_REVOKE ((dev_t)-2) /* revoked tty */
398
399struct ki_pcred {
400 void *p_pad;
401 uid_t p_ruid; /* Real user id */
402 uid_t p_svuid; /* Saved effective user id */
403 gid_t p_rgid; /* Real group id */
404 gid_t p_svgid; /* Saved effective group id */
405 int p_refcnt; /* Number of references */
406};
407
408struct ki_ucred {
409 uint32_t cr_ref; /* reference count */
410 uid_t cr_uid; /* effective user id */
411 gid_t cr_gid; /* effective group id */
412 uint32_t cr_ngroups; /* number of groups */
413 gid_t cr_groups[NGROUPS]; /* groups */
414};
415
416#if defined(_KERNEL) || defined(_KMEMUSER)
417
418struct eproc {
419 struct proc *e_paddr; /* address of proc */
420 struct session *e_sess; /* session pointer */
421 struct ki_pcred e_pcred; /* process credentials */
422 struct ki_ucred e_ucred; /* current credentials */
423 struct vmspace e_vm; /* address space */
424 pid_t e_ppid; /* parent process id */
425 pid_t e_pgid; /* process group id */
426 short e_jobc; /* job control counter */
427 uint32_t e_tdev; /* XXX: controlling tty dev */
428 pid_t e_tpgid; /* tty process group id */
429 struct session *e_tsess; /* tty session pointer */
430#define WMESGLEN 8
431 char e_wmesg[WMESGLEN]; /* wchan message */
432 segsz_t e_xsize; /* text size */
433 short e_xrssize; /* text rss */
434 short e_xccount; /* text references */
435 short e_xswrss;
436 long e_flag; /* see p_eflag below */
437 char e_login[MAXLOGNAME]; /* setlogin() name */
438 pid_t e_sid; /* session id */
439 long e_spare[3];
440};
441
442/*
443 * KERN_PROC subtype ops return arrays of augmented proc structures:
444 */
445struct kinfo_proc {
446 struct proc kp_proc; /* proc structure */
447 struct eproc kp_eproc; /* eproc structure */
448};
449#endif /* defined(_KERNEL) || defined(_KMEMUSER) */
450
451/*
452 * Convert pointer to 64 bit unsigned integer for struct
453 * kinfo_proc2, etc.
454 */
455#define PTRTOUINT64(p) ((uint64_t)(uintptr_t)(p))
456#define UINT64TOPTR(u) ((void *)(uintptr_t)(u))
457
458/*
459 * KERN_PROC2 subtype ops return arrays of relatively fixed size
460 * structures of process info. Use 8 byte alignment, and new
461 * elements should only be added to the end of this structure so
462 * binary compatibility can be preserved.
463 */
464#define KI_NGROUPS 16
465#define KI_MAXCOMLEN 24 /* extra for 8 byte alignment */
466#define KI_WMESGLEN 8
467#define KI_MAXLOGNAME 24 /* extra for 8 byte alignment */
468#define KI_MAXEMULLEN 16
469#define KI_LNAMELEN 20 /* extra 4 for alignment */
470
471#define KI_NOCPU (~(uint64_t)0)
472
473typedef struct {
474 uint32_t __bits[4];
475} ki_sigset_t;
476
477struct kinfo_proc2 {
478 uint64_t p_forw; /* PTR: linked run/sleep queue. */
479 uint64_t p_back;
480 uint64_t p_paddr; /* PTR: address of proc */
481
482 uint64_t p_addr; /* PTR: Kernel virtual addr of u-area */
483 uint64_t p_fd; /* PTR: Ptr to open files structure. */
484 uint64_t p_cwdi; /* PTR: cdir/rdir/cmask info */
485 uint64_t p_stats; /* PTR: Accounting/statistics */
486 uint64_t p_limit; /* PTR: Process limits. */
487 uint64_t p_vmspace; /* PTR: Address space. */
488 uint64_t p_sigacts; /* PTR: Signal actions, state */
489 uint64_t p_sess; /* PTR: session pointer */
490 uint64_t p_tsess; /* PTR: tty session pointer */
491 uint64_t p_ru; /* PTR: Exit information. XXX */
492
493 int32_t p_eflag; /* LONG: extra kinfo_proc2 flags */
494#define EPROC_CTTY 0x01 /* controlling tty vnode active */
495#define EPROC_SLEADER 0x02 /* session leader */
496 int32_t p_exitsig; /* INT: signal to sent to parent on exit */
497 int32_t p_flag; /* INT: P_* flags. */
498
499 int32_t p_pid; /* PID_T: Process identifier. */
500 int32_t p_ppid; /* PID_T: Parent process id */
501 int32_t p_sid; /* PID_T: session id */
502 int32_t p__pgid; /* PID_T: process group id */
503 /* XXX: <sys/proc.h> hijacks p_pgid */
504 int32_t p_tpgid; /* PID_T: tty process group id */
505
506 uint32_t p_uid; /* UID_T: effective user id */
507 uint32_t p_ruid; /* UID_T: real user id */
508 uint32_t p_gid; /* GID_T: effective group id */
509 uint32_t p_rgid; /* GID_T: real group id */
510
511 uint32_t p_groups[KI_NGROUPS]; /* GID_T: groups */
512 int16_t p_ngroups; /* SHORT: number of groups */
513
514 int16_t p_jobc; /* SHORT: job control counter */
515 uint32_t p_tdev; /* XXX: DEV_T: controlling tty dev */
516
517 uint32_t p_estcpu; /* U_INT: Time averaged value of p_cpticks. */
518 uint32_t p_rtime_sec; /* STRUCT TIMEVAL: Real time. */
519 uint32_t p_rtime_usec; /* STRUCT TIMEVAL: Real time. */
520 int32_t p_cpticks; /* INT: Ticks of CPU time. */
521 uint32_t p_pctcpu; /* FIXPT_T: %cpu for this process during p_swtime */
522 uint32_t p_swtime; /* U_INT: Time swapped in or out. */
523 uint32_t p_slptime; /* U_INT: Time since last blocked. */
524 int32_t p_schedflags; /* INT: PSCHED_* flags */
525
526 uint64_t p_uticks; /* U_QUAD_T: Statclock hits in user mode. */
527 uint64_t p_sticks; /* U_QUAD_T: Statclock hits in system mode. */
528 uint64_t p_iticks; /* U_QUAD_T: Statclock hits processing intr. */
529
530 uint64_t p_tracep; /* PTR: Trace to vnode or file */
531 int32_t p_traceflag; /* INT: Kernel trace points. */
532
533 int32_t p_holdcnt; /* INT: If non-zero, don't swap. */
534
535 ki_sigset_t p_siglist; /* SIGSET_T: Signals arrived but not delivered. */
536 ki_sigset_t p_sigmask; /* SIGSET_T: Current signal mask. */
537 ki_sigset_t p_sigignore; /* SIGSET_T: Signals being ignored. */
538 ki_sigset_t p_sigcatch; /* SIGSET_T: Signals being caught by user. */
539
540 int8_t p_stat; /* CHAR: S* process status (from LWP). */
541 uint8_t p_priority; /* U_CHAR: Process priority. */
542 uint8_t p_usrpri; /* U_CHAR: User-priority based on p_cpu and p_nice. */
543 uint8_t p_nice; /* U_CHAR: Process "nice" value. */
544
545 uint16_t p_xstat; /* U_SHORT: Exit status for wait; also stop signal. */
546 uint16_t p_acflag; /* U_SHORT: Accounting flags. */
547
548 char p_comm[KI_MAXCOMLEN];
549
550 char p_wmesg[KI_WMESGLEN]; /* wchan message */
551 uint64_t p_wchan; /* PTR: sleep address. */
552
553 char p_login[KI_MAXLOGNAME]; /* setlogin() name */
554
555 int32_t p_vm_rssize; /* SEGSZ_T: current resident set size in pages */
556 int32_t p_vm_tsize; /* SEGSZ_T: text size (pages) */
557 int32_t p_vm_dsize; /* SEGSZ_T: data size (pages) */
558 int32_t p_vm_ssize; /* SEGSZ_T: stack size (pages) */
559
560 int64_t p_uvalid; /* CHAR: following p_u* parameters are valid */
561 /* XXX 64 bits for alignment */
562 uint32_t p_ustart_sec; /* STRUCT TIMEVAL: starting time. */
563 uint32_t p_ustart_usec; /* STRUCT TIMEVAL: starting time. */
564
565 uint32_t p_uutime_sec; /* STRUCT TIMEVAL: user time. */
566 uint32_t p_uutime_usec; /* STRUCT TIMEVAL: user time. */
567 uint32_t p_ustime_sec; /* STRUCT TIMEVAL: system time. */
568 uint32_t p_ustime_usec; /* STRUCT TIMEVAL: system time. */
569
570 uint64_t p_uru_maxrss; /* LONG: max resident set size. */
571 uint64_t p_uru_ixrss; /* LONG: integral shared memory size. */
572 uint64_t p_uru_idrss; /* LONG: integral unshared data ". */
573 uint64_t p_uru_isrss; /* LONG: integral unshared stack ". */
574 uint64_t p_uru_minflt; /* LONG: page reclaims. */
575 uint64_t p_uru_majflt; /* LONG: page faults. */
576 uint64_t p_uru_nswap; /* LONG: swaps. */
577 uint64_t p_uru_inblock; /* LONG: block input operations. */
578 uint64_t p_uru_oublock; /* LONG: block output operations. */
579 uint64_t p_uru_msgsnd; /* LONG: messages sent. */
580 uint64_t p_uru_msgrcv; /* LONG: messages received. */
581 uint64_t p_uru_nsignals; /* LONG: signals received. */
582 uint64_t p_uru_nvcsw; /* LONG: voluntary context switches. */
583 uint64_t p_uru_nivcsw; /* LONG: involuntary ". */
584
585 uint32_t p_uctime_sec; /* STRUCT TIMEVAL: child u+s time. */
586 uint32_t p_uctime_usec; /* STRUCT TIMEVAL: child u+s time. */
587 uint64_t p_cpuid; /* LONG: CPU id */
588 uint64_t p_realflag; /* INT: P_* flags (not including LWPs). */
589 uint64_t p_nlwps; /* LONG: Number of LWPs */
590 uint64_t p_nrlwps; /* LONG: Number of running LWPs */
591 uint64_t p_realstat; /* LONG: non-LWP process status */
592 uint32_t p_svuid; /* UID_T: saved user id */
593 uint32_t p_svgid; /* GID_T: saved group id */
594 char p_ename[KI_MAXEMULLEN]; /* emulation name */
595 int64_t p_vm_vsize; /* SEGSZ_T: total map size (pages) */
596 int64_t p_vm_msize; /* SEGSZ_T: stack-adjusted map size (pages) */
597};
598
599/*
600 * Compat flags for kinfo_proc, kinfo_proc2. Not guaranteed to be stable.
601 * Some of them used to be shared with LWP flags.
602 * XXXAD Trim to the minimum necessary...
603 */
604
605#define P_ADVLOCK 0x00000001
606#define P_CONTROLT 0x00000002
607#define L_INMEM 0x00000004
608#define P_INMEM /* 0x00000004 */ L_INMEM
609#define P_NOCLDSTOP 0x00000008
610#define P_PPWAIT 0x00000010
611#define P_PROFIL 0x00000020
612#define L_SELECT 0x00000040
613#define P_SELECT /* 0x00000040 */ L_SELECT
614#define L_SINTR 0x00000080
615#define P_SINTR /* 0x00000080 */ L_SINTR
616#define P_SUGID 0x00000100
617#define L_SYSTEM 0x00000200
618#define P_SYSTEM /* 0x00000200 */ L_SYSTEM
619#define L_SA 0x00000400
620#define P_SA /* 0x00000400 */ L_SA
621#define P_TRACED 0x00000800
622#define P_WAITED 0x00001000
623#define P_WEXIT 0x00002000
624#define P_EXEC 0x00004000
625#define P_OWEUPC 0x00008000
626#define P_FSTRACE 0x00010000
627#define P_NOCLDWAIT 0x00020000
628#define P_32 0x00040000
629#define P_CLDSIGIGN 0x00080000
630#define P_SYSTRACE 0x00200000
631#define P_CHTRACED 0x00400000
632#define P_STOPFORK 0x00800000
633#define P_STOPEXEC 0x01000000
634#define P_STOPEXIT 0x02000000
635#define P_SYSCALL 0x04000000
636#define P_PAXMPROTECT 0x08000000
637#define P_PAXNOMPROTECT 0x10000000
638
639/*
640 * LWP compat flags.
641 */
642#define L_DETACHED 0x00800000
643
644/*
645 * KERN_LWP structure. See notes on KERN_PROC2 about adding elements.
646 */
647struct kinfo_lwp {
648 uint64_t l_forw; /* PTR: linked run/sleep queue. */
649 uint64_t l_back;
650 uint64_t l_laddr; /* PTR: Address of LWP */
651 uint64_t l_addr; /* PTR: Kernel virtual addr of u-area */
652 int32_t l_lid; /* LWPID_T: LWP identifier */
653 int32_t l_flag; /* INT: L_* flags. */
654 uint32_t l_swtime; /* U_INT: Time swapped in or out. */
655 uint32_t l_slptime; /* U_INT: Time since last blocked. */
656 int32_t l_schedflags; /* INT: PSCHED_* flags */
657 int32_t l_holdcnt; /* INT: If non-zero, don't swap. */
658 uint8_t l_priority; /* U_CHAR: Process priority. */
659 uint8_t l_usrpri; /* U_CHAR: User-priority based on l_cpu and p_nice. */
660 int8_t l_stat; /* CHAR: S* process status. */
661 int8_t l_pad1; /* fill out to 4-byte boundary */
662 int32_t l_pad2; /* .. and then to an 8-byte boundary */
663 char l_wmesg[KI_WMESGLEN]; /* wchan message */
664 uint64_t l_wchan; /* PTR: sleep address. */
665 uint64_t l_cpuid; /* LONG: CPU id */
666 uint32_t l_rtime_sec; /* STRUCT TIMEVAL: Real time. */
667 uint32_t l_rtime_usec; /* STRUCT TIMEVAL: Real time. */
668 uint32_t l_cpticks; /* INT: ticks during l_swtime */
669 uint32_t l_pctcpu; /* FIXPT_T: cpu usage for ps */
670 uint32_t l_pid; /* PID_T: process identifier */
671 char l_name[KI_LNAMELEN]; /* CHAR[]: name, may be empty */
672};
673
674/*
675 * KERN_PROC_ARGS subtypes
676 */
677#define KERN_PROC_ARGV 1 /* argv */
678#define KERN_PROC_NARGV 2 /* number of strings in above */
679#define KERN_PROC_ENV 3 /* environ */
680#define KERN_PROC_NENV 4 /* number of strings in above */
681#define KERN_PROC_PATHNAME 5 /* path to executable */
682
683/*
684 * KERN_SYSVIPC subtypes
685 */
686#define KERN_SYSVIPC_INFO 1 /* struct: number of valid kern ids */
687#define KERN_SYSVIPC_MSG 2 /* int: SysV message queue support */
688#define KERN_SYSVIPC_SEM 3 /* int: SysV semaphore support */
689#define KERN_SYSVIPC_SHM 4 /* int: SysV shared memory support */
690#define KERN_SYSVIPC_SHMMAX 5 /* int: max shared memory segment size (bytes) */
691#define KERN_SYSVIPC_SHMMNI 6 /* int: max number of shared memory identifiers */
692#define KERN_SYSVIPC_SHMSEG 7 /* int: max shared memory segments per process */
693#define KERN_SYSVIPC_SHMMAXPGS 8 /* int: max amount of shared memory (pages) */
694#define KERN_SYSVIPC_SHMUSEPHYS 9 /* int: physical memory usage */
695
696/*
697 * KERN_SYSVIPC_INFO subtypes
698 */
699/* KERN_SYSVIPC_OMSG_INFO 1 */
700/* KERN_SYSVIPC_OSEM_INFO 2 */
701/* KERN_SYSVIPC_OSHM_INFO 3 */
702#define KERN_SYSVIPC_MSG_INFO 4 /* msginfo and msgid_ds */
703#define KERN_SYSVIPC_SEM_INFO 5 /* seminfo and semid_ds */
704#define KERN_SYSVIPC_SHM_INFO 6 /* shminfo and shmid_ds */
705
706/*
707 * tty counter sysctl variables
708 */
709#define KERN_TKSTAT_NIN 1 /* total input character */
710#define KERN_TKSTAT_NOUT 2 /* total output character */
711#define KERN_TKSTAT_CANCC 3 /* canonical input character */
712#define KERN_TKSTAT_RAWCC 4 /* raw input character */
713#define KERN_TKSTAT_MAXID 5 /* number of valid TKSTAT ids */
714
715#define KERN_TKSTAT_NAMES { \
716 { 0, 0 }, \
717 { "nin", CTLTYPE_QUAD }, \
718 { "nout", CTLTYPE_QUAD }, \
719 { "cancc", CTLTYPE_QUAD }, \
720 { "rawcc", CTLTYPE_QUAD }, \
721}
722
723/*
724 * kern.drivers returns an array of these.
725 */
726
727struct kinfo_drivers {
728 devmajor_t d_cmajor;
729 devmajor_t d_bmajor;
730 char d_name[24];
731};
732
733/*
734 * KERN_BUF subtypes, like KERN_PROC2, where the four following mib
735 * entries specify "which type of buf", "which particular buf",
736 * "sizeof buf", and "how many". Currently, only "all buf" is
737 * defined.
738 */
739#define KERN_BUF_ALL 0 /* all buffers */
740
741/*
742 * kern.buf returns an array of these structures, which are designed
743 * both to be immune to 32/64 bit emulation issues and to provide
744 * backwards compatibility. Note that the order here differs slightly
745 * from the real struct buf in order to achieve proper 64 bit
746 * alignment.
747 */
748struct buf_sysctl {
749 uint32_t b_flags; /* LONG: B_* flags */
750 int32_t b_error; /* INT: Errno value */
751 int32_t b_prio; /* INT: Hint for buffer queue discipline */
752 uint32_t b_dev; /* DEV_T: Device associated with buffer */
753 uint64_t b_bufsize; /* LONG: Allocated buffer size */
754 uint64_t b_bcount; /* LONG: Valid bytes in buffer */
755 uint64_t b_resid; /* LONG: Remaining I/O */
756 uint64_t b_addr; /* CADDR_T: Memory, superblocks, indirect... */
757 uint64_t b_blkno; /* DADDR_T: Underlying physical block number */
758 uint64_t b_rawblkno; /* DADDR_T: Raw underlying physical block */
759 uint64_t b_iodone; /* PTR: Function called upon completion */
760 uint64_t b_proc; /* PTR: Associated proc if B_PHYS set */
761 uint64_t b_vp; /* PTR: File vnode */
762 uint64_t b_saveaddr; /* PTR: Original b_addr for physio */
763 uint64_t b_lblkno; /* DADDR_T: Logical block number */
764};
765
766/*
767 * kern.file2 returns an array of these structures, which are designed
768 * both to be immune to be immune to 32/64 bit emulation issues and to
769 * provide backwards compatibility. The order differs slightly from
770 * that of the real struct file, and some fields are taken from other
771 * structures (struct vnode, struct proc) in order to make the file
772 * information more useful.
773 */
774struct kinfo_file {
775 uint64_t ki_fileaddr; /* PTR: address of struct file */
776 uint32_t ki_flag; /* INT: flags (see fcntl.h) */
777 uint32_t ki_iflags; /* INT: internal flags */
778 uint32_t ki_ftype; /* INT: descriptor type */
779 uint32_t ki_count; /* UINT: reference count */
780 uint32_t ki_msgcount; /* UINT: references from msg queue */
781 uint32_t ki_usecount; /* INT: number active users */
782 uint64_t ki_fucred; /* PTR: creds for descriptor */
783 uint32_t ki_fuid; /* UID_T: descriptor credentials */
784 uint32_t ki_fgid; /* GID_T: descriptor credentials */
785 uint64_t ki_fops; /* PTR: address of fileops */
786 uint64_t ki_foffset; /* OFF_T: offset */
787 uint64_t ki_fdata; /* PTR: descriptor data */
788
789 /* vnode information to glue this file to something */
790 uint64_t ki_vun; /* PTR: socket, specinfo, etc */
791 uint64_t ki_vsize; /* OFF_T: size of file */
792 uint32_t ki_vtype; /* ENUM: vnode type */
793 uint32_t ki_vtag; /* ENUM: type of underlying data */
794 uint64_t ki_vdata; /* PTR: private data for fs */
795
796 /* process information when retrieved via KERN_FILE_BYPID */
797 uint32_t ki_pid; /* PID_T: process id */
798 int32_t ki_fd; /* INT: descriptor number */
799 uint32_t ki_ofileflags; /* CHAR: open file flags */
800 uint32_t _ki_padto64bits;
801};
802
803#define KERN_FILE_BYFILE 1
804#define KERN_FILE_BYPID 2
805#define KERN_FILESLOP 10
806
807/*
808 * kern.evcnt returns an array of these structures, which are designed both to
809 * be immune to 32/64 bit emulation issues. Note that the struct here differs
810 * from the real struct evcnt but contains the same information in order to
811 * accommodate sysctl.
812 */
813struct evcnt_sysctl {
814 uint64_t ev_count; /* current count */
815 uint64_t ev_addr; /* kernel address of evcnt */
816 uint64_t ev_parent; /* kernel address of parent */
817 uint8_t ev_type; /* EVCNT_TRAP_* */
818 uint8_t ev_grouplen; /* length of group with NUL */
819 uint8_t ev_namelen; /* length of name with NUL */
820 uint8_t ev_len; /* multiply by 8 */
821 /*
822 * Now the group and name strings follow (both include the trailing
823 * NUL). ev_name start at &ev_strings[ev_grouplen+1]
824 */
825 char ev_strings[0];
826};
827
828#define KERN_EVCNT_COUNT_ANY 0
829#define KERN_EVCNT_COUNT_NONZERO 1
830
831/*
832 * CTL_VM identifiers in <uvm/uvm_param.h>
833 */
834
835/*
836 * The vm.proc.map sysctl allows a process to dump the VM layout of
837 * another process as a series of entries.
838 */
839#define KVME_TYPE_NONE 0
840#define KVME_TYPE_OBJECT 1
841#define KVME_TYPE_VNODE 2
842#define KVME_TYPE_KERN 3
843#define KVME_TYPE_DEVICE 4
844#define KVME_TYPE_ANON 5
845#define KVME_TYPE_SUBMAP 6
846#define KVME_TYPE_UNKNOWN 255
847
848#define KVME_PROT_READ 0x00000001
849#define KVME_PROT_WRITE 0x00000002
850#define KVME_PROT_EXEC 0x00000004
851
852#define KVME_FLAG_COW 0x00000001
853#define KVME_FLAG_NEEDS_COPY 0x00000002
854#define KVME_FLAG_NOCOREDUMP 0x00000004
855#define KVME_FLAG_PAGEABLE 0x00000008
856#define KVME_FLAG_GROWS_UP 0x00000010
857#define KVME_FLAG_GROWS_DOWN 0x00000020
858
859struct kinfo_vmentry {
860 uint64_t kve_start; /* Starting address. */
861 uint64_t kve_end; /* Finishing address. */
862 uint64_t kve_offset; /* Mapping offset in object */
863
864 uint32_t kve_type; /* Type of map entry. */
865 uint32_t kve_flags; /* Flags on map entry. */
866
867 uint32_t kve_count; /* Number of pages/entries */
868 uint32_t kve_wired_count; /* Number of wired pages */
869
870 uint32_t kve_advice; /* Advice */
871 uint32_t kve_attributes; /* Map attribute */
872
873 uint32_t kve_protection; /* Protection bitmask. */
874 uint32_t kve_max_protection; /* Max protection bitmask */
875
876 uint32_t kve_ref_count; /* VM obj ref count. */
877 uint32_t kve_inheritance; /* Inheritance */
878
879 uint64_t kve_vn_fileid; /* inode number if vnode */
880 uint64_t kve_vn_size; /* File size. */
881 uint64_t kve_vn_fsid; /* dev_t of vnode location */
882 uint64_t kve_vn_rdev; /* Device id if device. */
883
884 uint32_t kve_vn_type; /* Vnode type. */
885 uint32_t kve_vn_mode; /* File mode. */
886
887 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */
888};
889
890/*
891 * CTL_HW identifiers
892 */
893#define HW_MACHINE 1 /* string: machine class */
894#define HW_MODEL 2 /* string: specific machine model */
895#define HW_NCPU 3 /* int: number of cpus */
896#define HW_BYTEORDER 4 /* int: machine byte order */
897#define HW_PHYSMEM 5 /* int: total memory (bytes) */
898#define HW_USERMEM 6 /* int: non-kernel memory (bytes) */
899#define HW_PAGESIZE 7 /* int: software page size */
900#define HW_DISKNAMES 8 /* string: disk drive names */
901#define HW_IOSTATS 9 /* struct: iostats[] */
902#define HW_MACHINE_ARCH 10 /* string: machine architecture */
903#define HW_ALIGNBYTES 11 /* int: ALIGNBYTES for the kernel */
904#define HW_CNMAGIC 12 /* string: console magic sequence(s) */
905#define HW_PHYSMEM64 13 /* quad: total memory (bytes) */
906#define HW_USERMEM64 14 /* quad: non-kernel memory (bytes) */
907#define HW_IOSTATNAMES 15 /* string: iostat names */
908#define HW_MAXID 15 /* number of valid hw ids */
909#define HW_NCPUONLINE 16 /* number CPUs online */
910
911#define CTL_HW_NAMES { \
912 { 0, 0 }, \
913 { "machine", CTLTYPE_STRING }, \
914 { "model", CTLTYPE_STRING }, \
915 { "ncpu", CTLTYPE_INT }, \
916 { "byteorder", CTLTYPE_INT }, \
917 { "physmem", CTLTYPE_INT }, \
918 { "usermem", CTLTYPE_INT }, \
919 { "pagesize", CTLTYPE_INT }, \
920 { "drivenames", CTLTYPE_STRING }, \
921 { "drivestats", CTLTYPE_STRUCT }, \
922 { "machine_arch", CTLTYPE_STRING }, \
923 { "alignbytes", CTLTYPE_INT }, \
924 { "cnmagic", CTLTYPE_STRING }, \
925 { "physmem64", CTLTYPE_QUAD }, \
926 { "usermem64", CTLTYPE_QUAD }, \
927 { "ncpuonline", CTLTYPE_INT }, \
928}
929
930/*
931 * CTL_USER definitions
932 */
933#define USER_CS_PATH 1 /* string: _CS_PATH */
934#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
935#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
936#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
937#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
938#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
939#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
940#define USER_LINE_MAX 8 /* int: LINE_MAX */
941#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
942#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
943#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
944#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
945#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
946#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
947#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
948#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
949#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
950#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
951#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
952#define USER_TZNAME_MAX 20 /* int: _POSIX_TZNAME_MAX */
953#define USER_ATEXIT_MAX 21 /* int: {ATEXIT_MAX} */
954#define USER_MAXID 22 /* number of valid user ids */
955
956#define CTL_USER_NAMES { \
957 { 0, 0 }, \
958 { "cs_path", CTLTYPE_STRING }, \
959 { "bc_base_max", CTLTYPE_INT }, \
960 { "bc_dim_max", CTLTYPE_INT }, \
961 { "bc_scale_max", CTLTYPE_INT }, \
962 { "bc_string_max", CTLTYPE_INT }, \
963 { "coll_weights_max", CTLTYPE_INT }, \
964 { "expr_nest_max", CTLTYPE_INT }, \
965 { "line_max", CTLTYPE_INT }, \
966 { "re_dup_max", CTLTYPE_INT }, \
967 { "posix2_version", CTLTYPE_INT }, \
968 { "posix2_c_bind", CTLTYPE_INT }, \
969 { "posix2_c_dev", CTLTYPE_INT }, \
970 { "posix2_char_term", CTLTYPE_INT }, \
971 { "posix2_fort_dev", CTLTYPE_INT }, \
972 { "posix2_fort_run", CTLTYPE_INT }, \
973 { "posix2_localedef", CTLTYPE_INT }, \
974 { "posix2_sw_dev", CTLTYPE_INT }, \
975 { "posix2_upe", CTLTYPE_INT }, \
976 { "stream_max", CTLTYPE_INT }, \
977 { "tzname_max", CTLTYPE_INT }, \
978 { "atexit_max", CTLTYPE_INT }, \
979}
980
981/*
982 * CTL_DDB definitions
983 */
984#define DDBCTL_RADIX 1 /* int: Input and output radix */
985#define DDBCTL_MAXOFF 2 /* int: max symbol offset */
986#define DDBCTL_MAXWIDTH 3 /* int: width of the display line */
987#define DDBCTL_LINES 4 /* int: number of display lines */
988#define DDBCTL_TABSTOPS 5 /* int: tab width */
989#define DDBCTL_ONPANIC 6 /* int: DDB on panic if non-zero */
990#define DDBCTL_FROMCONSOLE 7 /* int: DDB via console if non-zero */
991#define DDBCTL_MAXID 8 /* number of valid DDB ids */
992
993#define CTL_DDB_NAMES { \
994 { 0, 0 }, \
995 { "radix", CTLTYPE_INT }, \
996 { "maxoff", CTLTYPE_INT }, \
997 { "maxwidth", CTLTYPE_INT }, \
998 { "lines", CTLTYPE_INT }, \
999 { "tabstops", CTLTYPE_INT }, \
1000 { "onpanic", CTLTYPE_INT }, \
1001 { "fromconsole", CTLTYPE_INT }, \
1002}
1003
1004/*
1005 * CTL_DEBUG definitions
1006 *
1007 * Second level identifier specifies which debug variable.
1008 * Third level identifier specifies which structure component.
1009 */
1010#define CTL_DEBUG_NAME 0 /* string: variable name */
1011#define CTL_DEBUG_VALUE 1 /* int: variable value */
1012#define CTL_DEBUG_MAXID 20
1013
1014/*
1015 * CTL_PROC subtype. Either a PID, or a magic value for the current proc.
1016 */
1017
1018#define PROC_CURPROC (~((u_int)1 << 31))
1019
1020/*
1021 * CTL_PROC tree: either corename (string), or a limit
1022 * (rlimit.<type>.{hard,soft}, int).
1023 */
1024#define PROC_PID_CORENAME 1
1025#define PROC_PID_LIMIT 2
1026#define PROC_PID_STOPFORK 3
1027#define PROC_PID_STOPEXEC 4
1028#define PROC_PID_STOPEXIT 5
1029#define PROC_PID_MAXID 6
1030
1031#define PROC_PID_NAMES { \
1032 { 0, 0 }, \
1033 { "corename", CTLTYPE_STRING }, \
1034 { "rlimit", CTLTYPE_NODE }, \
1035 { "stopfork", CTLTYPE_INT }, \
1036 { "stopexec", CTLTYPE_INT }, \
1037 { "stopexit", CTLTYPE_INT }, \
1038}
1039
1040/* Limit types from <sys/resources.h> */
1041#define PROC_PID_LIMIT_CPU (RLIMIT_CPU+1)
1042#define PROC_PID_LIMIT_FSIZE (RLIMIT_FSIZE+1)
1043#define PROC_PID_LIMIT_DATA (RLIMIT_DATA+1)
1044#define PROC_PID_LIMIT_STACK (RLIMIT_STACK+1)
1045#define PROC_PID_LIMIT_CORE (RLIMIT_CORE+1)
1046#define PROC_PID_LIMIT_RSS (RLIMIT_RSS+1)
1047#define PROC_PID_LIMIT_MEMLOCK (RLIMIT_MEMLOCK+1)
1048#define PROC_PID_LIMIT_NPROC (RLIMIT_NPROC+1)
1049#define PROC_PID_LIMIT_NOFILE (RLIMIT_NOFILE+1)
1050#define PROC_PID_LIMIT_SBSIZE (RLIMIT_SBSIZE+1)
1051#define PROC_PID_LIMIT_AS (RLIMIT_AS+1)
1052#define PROC_PID_LIMIT_NTHR (RLIMIT_NTHR+1)
1053#define PROC_PID_LIMIT_MAXID (RLIM_NLIMITS+1)
1054
1055#define PROC_PID_LIMIT_NAMES { \
1056 { 0, 0 }, \
1057 { "cputime", CTLTYPE_NODE }, \
1058 { "filesize", CTLTYPE_NODE }, \
1059 { "datasize", CTLTYPE_NODE }, \
1060 { "stacksize", CTLTYPE_NODE }, \
1061 { "coredumpsize", CTLTYPE_NODE }, \
1062 { "memoryuse", CTLTYPE_NODE }, \
1063 { "memorylocked", CTLTYPE_NODE }, \
1064 { "maxproc", CTLTYPE_NODE }, \
1065 { "descriptors", CTLTYPE_NODE }, \
1066 { "sbsize", CTLTYPE_NODE }, \
1067 { "vmemoryuse", CTLTYPE_NODE }, \
1068 { "maxlwp", CTLTYPE_NODE }, \
1069}
1070/* for each type, either hard or soft value */
1071#define PROC_PID_LIMIT_TYPE_SOFT 1
1072#define PROC_PID_LIMIT_TYPE_HARD 2
1073#define PROC_PID_LIMIT_TYPE_MAXID 3
1074
1075#define PROC_PID_LIMIT_TYPE_NAMES { \
1076 {0, 0}, \
1077 { "soft", CTLTYPE_QUAD }, \
1078 { "hard", CTLTYPE_QUAD }, \
1079}
1080
1081/*
1082 * CTL_EMUL definitions
1083 *
1084 * Second level identifier specifies which emulation variable.
1085 * Subsequent levels are specified in the emulations themselves.
1086 */
1087#define EMUL_LINUX 1
1088#define EMUL_LINUX32 5
1089
1090#define EMUL_MAXID 6
1091
1092#ifdef _KERNEL
1093
1094#if defined(_KERNEL_OPT)
1095#include "opt_sysctl.h"
1096#endif
1097
1098/* Root node of the kernel sysctl tree */
1099extern struct sysctlnode sysctl_root;
1100
1101/*
1102 * A log of nodes created by a setup function or set of setup
1103 * functions so that they can be torn down in one "transaction"
1104 * when no longer needed.
1105 *
1106 * Users of the log merely pass a pointer to a pointer, and the sysctl
1107 * infrastructure takes care of the rest.
1108 */
1109struct sysctllog;
1110
1111/*
1112 * CTL_DEBUG variables.
1113 *
1114 * These are declared as separate variables so that they can be
1115 * individually initialized at the location of their associated
1116 * variable. The loader prevents multiple use by issuing errors
1117 * if a variable is initialized in more than one place. They are
1118 * aggregated into an array in debug_sysctl(), so that it can
1119 * conveniently locate them when queried. If more debugging
1120 * variables are added, they must also be declared here and also
1121 * entered into the array.
1122 *
1123 * Note that the debug subtree is largely obsolescent in terms of
1124 * functionality now that we have dynamic sysctl, but the
1125 * infrastructure is retained for backwards compatibility.
1126 */
1127struct ctldebug {
1128 const char *debugname; /* name of debugging variable */
1129 int *debugvar; /* pointer to debugging variable */
1130};
1131#ifdef DEBUG
1132extern struct ctldebug debug0, debug1, debug2, debug3, debug4;
1133extern struct ctldebug debug5, debug6, debug7, debug8, debug9;
1134extern struct ctldebug debug10, debug11, debug12, debug13, debug14;
1135extern struct ctldebug debug15, debug16, debug17, debug18, debug19;
1136#endif /* DEBUG */
1137
1138#define SYSCTLFN_PROTO const int *, u_int, void *, \
1139 size_t *, const void *, size_t, \
1140 const int *, struct lwp *, const struct sysctlnode *
1141#define SYSCTLFN_ARGS const int *name, u_int namelen, \
1142 void *oldp, size_t *oldlenp, \
1143 const void *newp, size_t newlen, \
1144 const int *oname, struct lwp *l, \
1145 const struct sysctlnode *rnode
1146#define SYSCTLFN_CALL(node) name, namelen, oldp, \
1147 oldlenp, newp, newlen, \
1148 oname, l, node
1149
1150#ifdef RUMP_USE_CTOR
1151#include <sys/kernel.h>
1152
1153struct sysctl_setup_chain {
1154 void (*ssc_func)(struct sysctllog **);
1155 LIST_ENTRY(sysctl_setup_chain) ssc_entries;
1156};
1157LIST_HEAD(sysctl_boot_chain, sysctl_setup_chain);
1158#define _SYSCTL_REGISTER(name) \
1159static struct sysctl_setup_chain __CONCAT(ssc,name) = { \
1160 .ssc_func = name, \
1161}; \
1162static void sysctlctor_##name(void) __attribute__((constructor)); \
1163static void sysctlctor_##name(void) \
1164{ \
1165 struct sysctl_setup_chain *ssc = &__CONCAT(ssc,name); \
1166 extern struct sysctl_boot_chain sysctl_boot_chain; \
1167 if (cold) { \
1168 LIST_INSERT_HEAD(&sysctl_boot_chain, ssc, ssc_entries); \
1169 } \
1170} \
1171static void sysctldtor_##name(void) __attribute__((destructor)); \
1172static void sysctldtor_##name(void) \
1173{ \
1174 struct sysctl_setup_chain *ssc = &__CONCAT(ssc,name); \
1175 if (cold) { \
1176 LIST_REMOVE(ssc, ssc_entries); \
1177 } \
1178}
1179
1180#else /* RUMP_USE_CTOR */
1181
1182#define _SYSCTL_REGISTER(name) __link_set_add_text(sysctl_funcs, name);
1183
1184#endif /* RUMP_USE_CTOR */
1185
1186#ifdef _MODULE
1187
1188#define SYSCTL_SETUP_PROTO(name) \
1189 void name(struct sysctllog **)
1190#ifdef SYSCTL_DEBUG_SETUP
1191#define SYSCTL_SETUP(name, desc) \
1192 SYSCTL_SETUP_PROTO(name); \
1193 static void __CONCAT(___,name)(struct sysctllog **); \
1194 void name(struct sysctllog **clog) { \
1195 printf("%s\n", desc); \
1196 __CONCAT(___,name)(clog); } \
1197 _SYSCTL_REGISTER(name); \
1198 static void __CONCAT(___,name)(struct sysctllog **clog)
1199#else /* !SYSCTL_DEBUG_SETUP */
1200#define SYSCTL_SETUP(name, desc) \
1201 SYSCTL_SETUP_PROTO(name); \
1202 _SYSCTL_REGISTER(name); \
1203 void name(struct sysctllog **clog)
1204#endif /* !SYSCTL_DEBUG_SETUP */
1205
1206#else /* !_MODULE */
1207
1208#define SYSCTL_SETUP_PROTO(name)
1209#ifdef SYSCTL_DEBUG_SETUP
1210#define SYSCTL_SETUP(name, desc) \
1211 static void __CONCAT(___,name)(struct sysctllog **); \
1212 static void name(struct sysctllog **clog) { \
1213 printf("%s\n", desc); \
1214 __CONCAT(___,name)(clog); } \
1215 _SYSCTL_REGISTER(name); \
1216 static void __CONCAT(___,name)(struct sysctllog **clog)
1217#else /* !SYSCTL_DEBUG_SETUP */
1218#define SYSCTL_SETUP(name, desc) \
1219 static void name(struct sysctllog **); \
1220 _SYSCTL_REGISTER(name); \
1221 static void name(struct sysctllog **clog)
1222#endif /* !SYSCTL_DEBUG_SETUP */
1223
1224#endif /* !_MODULE */
1225
1226/*
1227 * Internal sysctl function calling convention:
1228 *
1229 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen,
1230 * origname, lwp, node);
1231 *
1232 * The name parameter points at the next component of the name to be
1233 * interpreted. The namelen parameter is the number of integers in
1234 * the name. The origname parameter points to the start of the name
1235 * being parsed. The node parameter points to the node on which the
1236 * current operation is to be performed.
1237 */
1238typedef int (*sysctlfn)(SYSCTLFN_PROTO);
1239
1240/*
1241 * used in more than just sysctl
1242 */
1243void fill_eproc(struct proc *, struct eproc *, bool);
1244void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool);
1245
1246/*
1247 * subsystem setup
1248 */
1249void sysctl_init(void);
1250void sysctl_basenode_init(void);
1251void sysctl_finalize(void);
1252
1253/*
1254 * typical syscall call order
1255 */
1256void sysctl_lock(bool);
1257int sysctl_dispatch(SYSCTLFN_PROTO);
1258void sysctl_unlock(void);
1259void sysctl_relock(void);
1260
1261/*
1262 * tree navigation primitives (must obtain lock before using these)
1263 */
1264int sysctl_locate(struct lwp *, const int *, u_int,
1265 const struct sysctlnode **, int *);
1266int sysctl_query(SYSCTLFN_PROTO);
1267int sysctl_create(SYSCTLFN_PROTO);
1268int sysctl_destroy(SYSCTLFN_PROTO);
1269int sysctl_lookup(SYSCTLFN_PROTO);
1270int sysctl_describe(SYSCTLFN_PROTO);
1271
1272/*
1273 * simple variadic interface for adding/removing nodes
1274 */
1275int sysctl_createv(struct sysctllog **, int,
1276 const struct sysctlnode **, const struct sysctlnode **,
1277 int, int, const char *, const char *,
1278 sysctlfn, u_quad_t, void *, size_t, ...);
1279int sysctl_destroyv(struct sysctlnode *, ...);
1280
1281#define VERIFY_FN(ctl_type, c_type) \
1282__always_inline static __inline void * \
1283__sysctl_verify_##ctl_type##_arg(c_type *arg) \
1284{ \
1285 return arg; \
1286}
1287
1288VERIFY_FN(CTLTYPE_NODE, struct sysctlnode);
1289VERIFY_FN(CTLTYPE_INT, int);
1290VERIFY_FN(CTLTYPE_STRING, char);
1291VERIFY_FN(CTLTYPE_QUAD, int64_t);
1292VERIFY_FN(CTLTYPE_STRUCT, void);
1293VERIFY_FN(CTLTYPE_BOOL, bool);
1294VERIFY_FN(CTLTYPE_LONG, long);
1295#undef VERIFY_FN
1296
1297#define sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, newp, ...) \
1298 sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, \
1299 __sysctl_verify_##type##_arg(newp), __VA_ARGS__)
1300
1301/*
1302 * miscellany
1303 */
1304void sysctl_dump(const struct sysctlnode *);
1305void sysctl_free(struct sysctlnode *);
1306void sysctl_teardown(struct sysctllog **);
1307void sysctl_log_print(const struct sysctllog *);
1308
1309#ifdef SYSCTL_INCLUDE_DESCR
1310#define SYSCTL_DESCR(s) s
1311#else /* SYSCTL_INCLUDE_DESCR */
1312#define SYSCTL_DESCR(s) NULL
1313#endif /* SYSCTL_INCLUDE_DESCR */
1314
1315/*
1316 * simple interface similar to old interface for in-kernel consumption
1317 */
1318int old_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct lwp *);
1319
1320/*
1321 * these helpers are in other files (XXX so should the nodes be) or
1322 * are used by more than one node
1323 */
1324int sysctl_hw_tapenames(SYSCTLFN_PROTO);
1325int sysctl_hw_tapestats(SYSCTLFN_PROTO);
1326int sysctl_kern_vnode(SYSCTLFN_PROTO);
1327int sysctl_net_inet_ip_ports(SYSCTLFN_PROTO);
1328int sysctl_consdev(SYSCTLFN_PROTO);
1329int sysctl_root_device(SYSCTLFN_PROTO);
1330int sysctl_vfs_generic_fstypes(SYSCTLFN_PROTO);
1331
1332/*
1333 * primitive helper stubs
1334 */
1335int sysctl_needfunc(SYSCTLFN_PROTO);
1336int sysctl_notavail(SYSCTLFN_PROTO);
1337int sysctl_null(SYSCTLFN_PROTO);
1338
1339int sysctl_copyin(struct lwp *, const void *, void *, size_t);
1340int sysctl_copyout(struct lwp *, const void *, void *, size_t);
1341int sysctl_copyinstr(struct lwp *, const void *, void *, size_t, size_t *);
1342
1343u_int sysctl_map_flags(const u_int *, u_int);
1344
1345MALLOC_DECLARE(M_SYSCTLNODE);
1346MALLOC_DECLARE(M_SYSCTLDATA);
1347
1348extern const u_int sysctl_lwpflagmap[];
1349
1350#else /* !_KERNEL */
1351#include <sys/cdefs.h>
1352
1353typedef void *sysctlfn;
1354
1355__BEGIN_DECLS
1356int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1357int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
1358int sysctlgetmibinfo(const char *, int *, u_int *,
1359 char *, size_t *, struct sysctlnode **, int);
1360int sysctlnametomib(const char *, int *, size_t *);
1361int proc_compare(const struct kinfo_proc2 *, const struct kinfo_lwp *,
1362 const struct kinfo_proc2 *, const struct kinfo_lwp *);
1363void *asysctl(const int *, size_t, size_t *);
1364void *asysctlbyname(const char *, size_t *);
1365__END_DECLS
1366
1367#endif /* !_KERNEL */
1368
1369#ifdef __COMPAT_SYSCTL
1370/*
1371 * old node definitions go here
1372 */
1373#endif /* __COMPAT_SYSCTL */
1374
1375/*
1376 * padding makes alignment magically "work" for 32/64 compatibility at
1377 * the expense of making things bigger on 32 bit platforms.
1378 */
1379#if defined(_LP64) || (BYTE_ORDER == LITTLE_ENDIAN)
1380#define __sysc_pad(type) union { uint64_t __sysc_upad; \
1381 struct { type __sysc_sdatum; } __sysc_ustr; }
1382#else
1383#define __sysc_pad(type) union { uint64_t __sysc_upad; \
1384 struct { uint32_t __sysc_spad; type __sysc_sdatum; } __sysc_ustr; }
1385#endif
1386#define __sysc_unpad(x) x.__sysc_ustr.__sysc_sdatum
1387
1388/*
1389 * The following is for gcc2, which doesn't handle __sysc_unpad().
1390 * The code gets a little less ugly this way.
1391 */
1392#define sysc_init_field(field, value) \
1393 .field = { .__sysc_ustr = { .__sysc_sdatum = (value), }, }
1394
1395struct sysctlnode {
1396 uint32_t sysctl_flags; /* flags and type */
1397 int32_t sysctl_num; /* mib number */
1398 char sysctl_name[SYSCTL_NAMELEN]; /* node name */
1399 uint32_t sysctl_ver; /* node's version vs. rest of tree */
1400 uint32_t __rsvd;
1401 union {
1402 struct {
1403 uint32_t suc_csize; /* size of child node array */
1404 uint32_t suc_clen; /* number of valid children */
1405 __sysc_pad(struct sysctlnode*) _suc_child; /* array of child nodes */
1406 } scu_child;
1407 struct {
1408 __sysc_pad(void*) _sud_data; /* pointer to external data */
1409 __sysc_pad(size_t) _sud_offset; /* offset to data */
1410 } scu_data;
1411 int32_t scu_alias; /* node this node refers to */
1412 int32_t scu_idata; /* immediate "int" data */
1413 u_quad_t scu_qdata; /* immediate "u_quad_t" data */
1414 bool scu_bdata; /* immediate bool data */
1415 } sysctl_un;
1416 __sysc_pad(size_t) _sysctl_size; /* size of instrumented data */
1417 __sysc_pad(sysctlfn) _sysctl_func; /* access helper function */
1418 __sysc_pad(struct sysctlnode*) _sysctl_parent; /* parent of this node */
1419 __sysc_pad(const char *) _sysctl_desc; /* description of node */
1420};
1421
1422/*
1423 * padded data
1424 */
1425#define suc_child __sysc_unpad(_suc_child)
1426#define sud_data __sysc_unpad(_sud_data)
1427#define sud_offset __sysc_unpad(_sud_offset)
1428#define sysctl_size __sysc_unpad(_sysctl_size)
1429#define sysctl_func __sysc_unpad(_sysctl_func)
1430#define sysctl_parent __sysc_unpad(_sysctl_parent)
1431#define sysctl_desc __sysc_unpad(_sysctl_desc)
1432
1433/*
1434 * nested data (may also be padded)
1435 */
1436#define sysctl_csize sysctl_un.scu_child.suc_csize
1437#define sysctl_clen sysctl_un.scu_child.suc_clen
1438#define sysctl_child sysctl_un.scu_child.suc_child
1439#define sysctl_data sysctl_un.scu_data.sud_data
1440#define sysctl_offset sysctl_un.scu_data.sud_offset
1441#define sysctl_alias sysctl_un.scu_alias
1442#define sysctl_idata sysctl_un.scu_idata
1443#define sysctl_qdata sysctl_un.scu_qdata
1444#define sysctl_bdata sysctl_un.scu_bdata
1445
1446/*
1447 * when requesting a description of a node (a set of nodes, actually),
1448 * you get back an "array" of these, where the actual length of the
1449 * descr_str is noted in descr_len (which includes the trailing nul
1450 * byte), rounded up to the nearest four (sizeof(int32_t) actually).
1451 *
1452 * NEXT_DESCR() will take a pointer to a description and advance it to
1453 * the next description.
1454 */
1455struct sysctldesc {
1456 int32_t descr_num; /* mib number of node */
1457 uint32_t descr_ver; /* version of node */
1458 uint32_t descr_len; /* length of description string */
1459 char descr_str[1]; /* not really 1...see above */
1460};
1461
1462#define __sysc_desc_roundup(x) ((((x) - 1) | (sizeof(int32_t) - 1)) + 1)
1463#define __sysc_desc_adv(d, l) \
1464 (/*XXXUNCONST ptr cast*/(struct sysctldesc *) \
1465 __UNCONST(((const char*)(d)) + offsetof(struct sysctldesc, descr_str) +\
1466 __sysc_desc_roundup(l)))
1467#define NEXT_DESCR(d) __sysc_desc_adv((d), (d)->descr_len)
1468
1469static __inline const struct sysctlnode *
1470sysctl_rootof(const struct sysctlnode *n)
1471{
1472 while (n->sysctl_parent != NULL)
1473 n = n->sysctl_parent;
1474 return (n);
1475}
1476
1477#endif /* !_SYS_SYSCTL_H_ */
1478