FreeBSD/Linux Kernel Cross Reference
sys/sys/sysctl.h
1 /* $NetBSD: sysctl.h,v 1.177.4.1 2009/04/01 00:25:22 snj 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 /*
41 * These are for the eproc structure defined below.
42 */
43 #include <sys/time.h>
44 #include <sys/ucred.h>
45 #include <sys/ucontext.h>
46 #include <sys/proc.h>
47 #include <uvm/uvm_extern.h>
48
49
50 /* For offsetof() */
51 #if defined(_KERNEL) || defined(_STANDALONE)
52 #include <sys/systm.h>
53 #else
54 #include <stddef.h>
55 #include <stdbool.h>
56 #endif
57
58 /*
59 * Definitions for sysctl call. The sysctl call uses a hierarchical name
60 * for objects that can be examined or modified. The name is expressed as
61 * a sequence of integers. Like a file path name, the meaning of each
62 * component depends on its place in the hierarchy. The top-level and kern
63 * identifiers are defined here, and other identifiers are defined in the
64 * respective subsystem header files.
65 */
66
67 #define CTL_MAXNAME 12 /* largest number of components supported */
68 #define SYSCTL_NAMELEN 32 /* longest name allowed for a node */
69
70 #define CREATE_BASE (1024) /* start of dynamic mib allocation */
71 #define SYSCTL_DEFSIZE 8 /* initial size of a child set */
72
73 /*
74 * Each subsystem defined by sysctl defines a list of variables
75 * for that subsystem. Each name is either a node with further
76 * levels defined below it, or it is a leaf of some particular
77 * type given below. Each sysctl level defines a set of name/type
78 * pairs to be used by sysctl(1) in manipulating the subsystem.
79 */
80 struct ctlname {
81 const char *ctl_name; /* subsystem name */
82 int ctl_type; /* type of name */
83 };
84 #define CTLTYPE_NODE 1 /* name is a node */
85 #define CTLTYPE_INT 2 /* name describes an integer */
86 #define CTLTYPE_STRING 3 /* name describes a string */
87 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
88 #define CTLTYPE_STRUCT 5 /* name describes a structure */
89 #define CTLTYPE_BOOL 6 /* name describes a bool */
90
91 /*
92 * Flags that apply to each node, governing access and other features
93 */
94 #define CTLFLAG_READONLY 0x00000000
95 /* #define CTLFLAG_UNUSED1 0x00000010 */
96 /* #define CTLFLAG_UNUSED2 0x00000020 */
97 /* #define CTLFLAG_READ* 0x00000040 */
98 #define CTLFLAG_READWRITE 0x00000070
99 #define CTLFLAG_ANYWRITE 0x00000080
100 #define CTLFLAG_PRIVATE 0x00000100
101 #define CTLFLAG_PERMANENT 0x00000200
102 #define CTLFLAG_OWNDATA 0x00000400
103 #define CTLFLAG_IMMEDIATE 0x00000800
104 #define CTLFLAG_HEX 0x00001000
105 #define CTLFLAG_ROOT 0x00002000
106 #define CTLFLAG_ANYNUMBER 0x00004000
107 #define CTLFLAG_HIDDEN 0x00008000
108 #define CTLFLAG_ALIAS 0x00010000
109 #define CTLFLAG_MMAP 0x00020000
110 #define CTLFLAG_OWNDESC 0x00040000
111
112 /*
113 * sysctl API version
114 */
115 #define SYSCTL_VERS_MASK 0xff000000
116 #define SYSCTL_VERS_0 0x00000000
117 #define SYSCTL_VERS_1 0x01000000
118 #define SYSCTL_VERSION SYSCTL_VERS_1
119 #define SYSCTL_VERS(f) ((f) & SYSCTL_VERS_MASK)
120
121 /*
122 * Flags that can be set by a create request from user-space
123 */
124 #define SYSCTL_USERFLAGS (CTLFLAG_READWRITE|\
125 CTLFLAG_ANYWRITE|\
126 CTLFLAG_PRIVATE|\
127 CTLFLAG_OWNDATA|\
128 CTLFLAG_IMMEDIATE|\
129 CTLFLAG_HEX|\
130 CTLFLAG_HIDDEN)
131
132 /*
133 * Accessor macros
134 */
135 #define SYSCTL_TYPEMASK 0x0000000f
136 #define SYSCTL_TYPE(x) ((x) & SYSCTL_TYPEMASK)
137 #define SYSCTL_FLAGMASK 0x00fffff0
138 #define SYSCTL_FLAGS(x) ((x) & SYSCTL_FLAGMASK)
139
140 /*
141 * Meta-identifiers
142 */
143 #define CTL_EOL -1 /* end of createv/destroyv list */
144 #define CTL_QUERY -2 /* enumerates children of a node */
145 #define CTL_CREATE -3 /* node create request */
146 #define CTL_CREATESYM -4 /* node create request with symbol */
147 #define CTL_DESTROY -5 /* node destroy request */
148 #define CTL_MMAP -6 /* mmap request */
149 #define CTL_DESCRIBE -7 /* get node descriptions */
150
151 /*
152 * Top-level identifiers
153 */
154 #define CTL_UNSPEC 0 /* unused */
155 #define CTL_KERN 1 /* "high kernel": proc, limits */
156 #define CTL_VM 2 /* virtual memory */
157 #define CTL_VFS 3 /* file system, mount type is next */
158 #define CTL_NET 4 /* network, see socket.h */
159 #define CTL_DEBUG 5 /* debugging parameters */
160 #define CTL_HW 6 /* generic CPU/io */
161 #define CTL_MACHDEP 7 /* machine dependent */
162 #define CTL_USER 8 /* user-level */
163 #define CTL_DDB 9 /* in-kernel debugger */
164 #define CTL_PROC 10 /* per-proc attr */
165 #define CTL_VENDOR 11 /* vendor-specific data */
166 #define CTL_EMUL 12 /* emulation-specific data */
167 #define CTL_SECURITY 13 /* security */
168 #define CTL_MAXID 14 /* number of valid top-level ids */
169
170 #define CTL_NAMES { \
171 { 0, 0 }, \
172 { "kern", CTLTYPE_NODE }, \
173 { "vm", CTLTYPE_NODE }, \
174 { "vfs", CTLTYPE_NODE }, \
175 { "net", CTLTYPE_NODE }, \
176 { "debug", CTLTYPE_NODE }, \
177 { "hw", CTLTYPE_NODE }, \
178 { "machdep", CTLTYPE_NODE }, \
179 { "user", CTLTYPE_NODE }, \
180 { "ddb", CTLTYPE_NODE }, \
181 { "proc", CTLTYPE_NODE }, \
182 { "vendor", CTLTYPE_NODE }, \
183 { "emul", CTLTYPE_NODE }, \
184 { "security", CTLTYPE_NODE }, \
185 }
186
187 /*
188 * The "vendor" toplevel name is to be used by vendors who wish to
189 * have their own private MIB tree. If you do that, please use
190 * vendor.<yourname>.*
191 */
192
193 /*
194 * CTL_KERN identifiers
195 */
196 #define KERN_OSTYPE 1 /* string: system version */
197 #define KERN_OSRELEASE 2 /* string: system release */
198 #define KERN_OSREV 3 /* int: system revision */
199 #define KERN_VERSION 4 /* string: compile time info */
200 #define KERN_MAXVNODES 5 /* int: max vnodes */
201 #define KERN_MAXPROC 6 /* int: max processes */
202 #define KERN_MAXFILES 7 /* int: max open files */
203 #define KERN_ARGMAX 8 /* int: max arguments to exec */
204 #define KERN_SECURELVL 9 /* int: system security level */
205 #define KERN_HOSTNAME 10 /* string: hostname */
206 #define KERN_HOSTID 11 /* int: host identifier */
207 #define KERN_CLOCKRATE 12 /* struct: struct clockinfo */
208 #define KERN_VNODE 13 /* struct: vnode structures */
209 #define KERN_PROC 14 /* struct: process entries */
210 #define KERN_FILE 15 /* struct: file entries */
211 #define KERN_PROF 16 /* node: kernel profiling info */
212 #define KERN_POSIX1 17 /* int: POSIX.1 version */
213 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
214 #define KERN_JOB_CONTROL 19 /* int: is job control available */
215 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
216 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
217 #define KERN_DOMAINNAME 22 /* string: (YP) domainname */
218 #define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */
219 #define KERN_RAWPARTITION 24 /* int: raw partition number */
220 #define KERN_NTPTIME 25 /* struct: extended-precision time */
221 #define KERN_TIMEX 26 /* struct: ntp timekeeping state */
222 #define KERN_AUTONICETIME 27 /* int: proc time before autonice */
223 #define KERN_AUTONICEVAL 28 /* int: auto nice value */
224 #define KERN_RTC_OFFSET 29 /* int: offset of rtc from gmt */
225 #define KERN_ROOT_DEVICE 30 /* string: root device */
226 #define KERN_MSGBUFSIZE 31 /* int: max # of chars in msg buffer */
227 #define KERN_FSYNC 32 /* int: file synchronization support */
228 #define KERN_OLDSYSVMSG 33 /* old: SysV message queue suppoprt */
229 #define KERN_OLDSYSVSEM 34 /* old: SysV semaphore support */
230 #define KERN_OLDSYSVSHM 35 /* old: SysV shared memory support */
231 #define KERN_OLDSHORTCORENAME 36 /* old, unimplemented */
232 #define KERN_SYNCHRONIZED_IO 37 /* int: POSIX synchronized I/O */
233 #define KERN_IOV_MAX 38 /* int: max iovec's for readv(2) etc. */
234 #define KERN_MBUF 39 /* node: mbuf parameters */
235 #define KERN_MAPPED_FILES 40 /* int: POSIX memory mapped files */
236 #define KERN_MEMLOCK 41 /* int: POSIX memory locking */
237 #define KERN_MEMLOCK_RANGE 42 /* int: POSIX memory range locking */
238 #define KERN_MEMORY_PROTECTION 43 /* int: POSIX memory protections */
239 #define KERN_LOGIN_NAME_MAX 44 /* int: max length login name + NUL */
240 #define KERN_DEFCORENAME 45 /* old: sort core name format */
241 #define KERN_LOGSIGEXIT 46 /* int: log signalled processes */
242 #define KERN_PROC2 47 /* struct: process entries */
243 #define KERN_PROC_ARGS 48 /* struct: process argv/env */
244 #define KERN_FSCALE 49 /* int: fixpt FSCALE */
245 #define KERN_CCPU 50 /* old: fixpt ccpu */
246 #define KERN_CP_TIME 51 /* struct: CPU time counters */
247 #define KERN_OLDSYSVIPC_INFO 52 /* old: number of valid kern ids */
248 #define KERN_MSGBUF 53 /* kernel message buffer */
249 #define KERN_CONSDEV 54 /* dev_t: console terminal device */
250 #define KERN_MAXPTYS 55 /* int: maximum number of ptys */
251 #define KERN_PIPE 56 /* node: pipe limits */
252 #define KERN_MAXPHYS 57 /* int: kernel value of MAXPHYS */
253 #define KERN_SBMAX 58 /* int: max socket buffer size */
254 #define KERN_TKSTAT 59 /* tty in/out counters */
255 #define KERN_MONOTONIC_CLOCK 60 /* int: POSIX monotonic clock */
256 #define KERN_URND 61 /* int: random integer from urandom */
257 #define KERN_LABELSECTOR 62 /* int: disklabel sector */
258 #define KERN_LABELOFFSET 63 /* int: offset of label within sector */
259 #define KERN_LWP 64 /* struct: lwp entries */
260 #define KERN_FORKFSLEEP 65 /* int: sleep length on failed fork */
261 #define KERN_POSIX_THREADS 66 /* int: POSIX Threads option */
262 #define KERN_POSIX_SEMAPHORES 67 /* int: POSIX Semaphores option */
263 #define KERN_POSIX_BARRIERS 68 /* int: POSIX Barriers option */
264 #define KERN_POSIX_TIMERS 69 /* int: POSIX Timers option */
265 #define KERN_POSIX_SPIN_LOCKS 70 /* int: POSIX Spin Locks option */
266 #define KERN_POSIX_READER_WRITER_LOCKS 71 /* int: POSIX R/W Locks option */
267 #define KERN_DUMP_ON_PANIC 72 /* int: dump on panic */
268 #define KERN_SOMAXKVA 73 /* int: max socket kernel virtual mem */
269 #define KERN_ROOT_PARTITION 74 /* int: root partition */
270 #define KERN_DRIVERS 75 /* struct: driver names and majors #s */
271 #define KERN_BUF 76 /* struct: buffers */
272 #define KERN_FILE2 77 /* struct: file entries */
273 #define KERN_VERIEXEC 78 /* node: verified exec */
274 #define KERN_CP_ID 79 /* struct: cpu id numbers */
275 #define KERN_HARDCLOCK_TICKS 80 /* int: number of hardclock ticks */
276 #define KERN_ARND 81 /* void *buf, size_t siz random */
277 #define KERN_SYSVIPC 82 /* node: SysV IPC parameters */
278 #define KERN_MAXID 83 /* 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 { "boottime", CTLTYPE_STRUCT }, \
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 }
366
367 /*
368 * KERN_CLOCKRATE structure
369 */
370 struct clockinfo {
371 int hz; /* clock frequency */
372 int tick; /* micro-seconds per hz tick */
373 int tickadj; /* clock skew rate for adjtime() */
374 int stathz; /* statistics clock frequency */
375 int profhz; /* profiling clock frequency */
376 };
377
378 /*
379 * KERN_PROC subtypes
380 */
381 #define KERN_PROC_ALL 0 /* everything */
382 #define KERN_PROC_PID 1 /* by process id */
383 #define KERN_PROC_PGRP 2 /* by process group id */
384 #define KERN_PROC_SESSION 3 /* by session of pid */
385 #define KERN_PROC_TTY 4 /* by controlling tty */
386 #define KERN_PROC_UID 5 /* by effective uid */
387 #define KERN_PROC_RUID 6 /* by real uid */
388 #define KERN_PROC_GID 7 /* by effective gid */
389 #define KERN_PROC_RGID 8 /* by real gid */
390
391 /*
392 * KERN_PROC_TTY sub-subtypes
393 */
394 #define KERN_PROC_TTY_NODEV NODEV /* no controlling tty */
395 #define KERN_PROC_TTY_REVOKE ((dev_t)-2) /* revoked tty */
396
397 struct ki_pcred {
398 void *p_pad;
399 uid_t p_ruid; /* Real user id */
400 uid_t p_svuid; /* Saved effective user id */
401 gid_t p_rgid; /* Real group id */
402 gid_t p_svgid; /* Saved effective group id */
403 int p_refcnt; /* Number of references */
404 };
405
406 struct ki_ucred {
407 uint32_t cr_ref; /* reference count */
408 uid_t cr_uid; /* effective user id */
409 gid_t cr_gid; /* effective group id */
410 uint32_t cr_ngroups; /* number of groups */
411 gid_t cr_groups[NGROUPS]; /* groups */
412 };
413
414 /*
415 * KERN_PROC subtype ops return arrays of augmented proc structures:
416 */
417 struct kinfo_proc {
418 struct proc kp_proc; /* proc structure */
419 struct eproc {
420 struct proc *e_paddr; /* address of proc */
421 struct session *e_sess; /* session pointer */
422 struct ki_pcred e_pcred; /* process credentials */
423 struct ki_ucred e_ucred; /* current credentials */
424 struct vmspace e_vm; /* address space */
425 pid_t e_ppid; /* parent process id */
426 pid_t e_pgid; /* process group id */
427 short e_jobc; /* job control counter */
428 dev_t e_tdev; /* controlling tty dev */
429 pid_t e_tpgid; /* tty process group id */
430 struct session *e_tsess; /* tty session pointer */
431 #define WMESGLEN 8
432 char e_wmesg[WMESGLEN]; /* wchan message */
433 segsz_t e_xsize; /* text size */
434 short e_xrssize; /* text rss */
435 short e_xccount; /* text references */
436 short e_xswrss;
437 long e_flag;
438 #define EPROC_CTTY 0x01 /* controlling tty vnode active */
439 #define EPROC_SLEADER 0x02 /* session leader */
440 char e_login[MAXLOGNAME]; /* setlogin() name */
441 pid_t e_sid; /* session id */
442 long e_spare[3];
443 } kp_eproc;
444 };
445
446 /*
447 * Convert pointer to 64 bit unsigned integer for struct
448 * kinfo_proc2, etc.
449 */
450 #define PTRTOUINT64(p) ((uint64_t)(uintptr_t)(p))
451 #define UINT64TOPTR(u) ((void *)(uintptr_t)(u))
452
453 /*
454 * KERN_PROC2 subtype ops return arrays of relatively fixed size
455 * structures of process info. Use 8 byte alignment, and new
456 * elements should only be added to the end of this structure so
457 * binary compatibility can be preserved.
458 */
459 #define KI_NGROUPS 16
460 #define KI_MAXCOMLEN 24 /* extra for 8 byte alignment */
461 #define KI_WMESGLEN 8
462 #define KI_MAXLOGNAME 24 /* extra for 8 byte alignment */
463 #define KI_MAXEMULLEN 16
464 #define KI_LNAMELEN 20 /* extra 4 for alignment */
465
466 #define KI_NOCPU (~(uint64_t)0)
467
468 typedef struct {
469 uint32_t __bits[4];
470 } ki_sigset_t;
471
472 struct kinfo_proc2 {
473 uint64_t p_forw; /* PTR: linked run/sleep queue. */
474 uint64_t p_back;
475 uint64_t p_paddr; /* PTR: address of proc */
476
477 uint64_t p_addr; /* PTR: Kernel virtual addr of u-area */
478 uint64_t p_fd; /* PTR: Ptr to open files structure. */
479 uint64_t p_cwdi; /* PTR: cdir/rdir/cmask info */
480 uint64_t p_stats; /* PTR: Accounting/statistics */
481 uint64_t p_limit; /* PTR: Process limits. */
482 uint64_t p_vmspace; /* PTR: Address space. */
483 uint64_t p_sigacts; /* PTR: Signal actions, state */
484 uint64_t p_sess; /* PTR: session pointer */
485 uint64_t p_tsess; /* PTR: tty session pointer */
486 uint64_t p_ru; /* PTR: Exit information. XXX */
487
488 int32_t p_eflag; /* LONG: extra kinfo_proc2 flags */
489 int32_t p_exitsig; /* INT: signal to sent to parent on exit */
490 int32_t p_flag; /* INT: P_* flags. */
491
492 int32_t p_pid; /* PID_T: Process identifier. */
493 int32_t p_ppid; /* PID_T: Parent process id */
494 int32_t p_sid; /* PID_T: session id */
495 int32_t p__pgid; /* PID_T: process group id */
496 /* XXX: <sys/proc.h> hijacks p_pgid */
497 int32_t p_tpgid; /* PID_T: tty process group id */
498
499 uint32_t p_uid; /* UID_T: effective user id */
500 uint32_t p_ruid; /* UID_T: real user id */
501 uint32_t p_gid; /* GID_T: effective group id */
502 uint32_t p_rgid; /* GID_T: real group id */
503
504 uint32_t p_groups[KI_NGROUPS]; /* GID_T: groups */
505 int16_t p_ngroups; /* SHORT: number of groups */
506
507 int16_t p_jobc; /* SHORT: job control counter */
508 uint32_t p_tdev; /* DEV_T: controlling tty dev */
509
510 uint32_t p_estcpu; /* U_INT: Time averaged value of p_cpticks. */
511 uint32_t p_rtime_sec; /* STRUCT TIMEVAL: Real time. */
512 uint32_t p_rtime_usec; /* STRUCT TIMEVAL: Real time. */
513 int32_t p_cpticks; /* INT: Ticks of CPU time. */
514 uint32_t p_pctcpu; /* FIXPT_T: %cpu for this process during p_swtime */
515 uint32_t p_swtime; /* U_INT: Time swapped in or out. */
516 uint32_t p_slptime; /* U_INT: Time since last blocked. */
517 int32_t p_schedflags; /* INT: PSCHED_* flags */
518
519 uint64_t p_uticks; /* U_QUAD_T: Statclock hits in user mode. */
520 uint64_t p_sticks; /* U_QUAD_T: Statclock hits in system mode. */
521 uint64_t p_iticks; /* U_QUAD_T: Statclock hits processing intr. */
522
523 uint64_t p_tracep; /* PTR: Trace to vnode or file */
524 int32_t p_traceflag; /* INT: Kernel trace points. */
525
526 int32_t p_holdcnt; /* INT: If non-zero, don't swap. */
527
528 ki_sigset_t p_siglist; /* SIGSET_T: Signals arrived but not delivered. */
529 ki_sigset_t p_sigmask; /* SIGSET_T: Current signal mask. */
530 ki_sigset_t p_sigignore; /* SIGSET_T: Signals being ignored. */
531 ki_sigset_t p_sigcatch; /* SIGSET_T: Signals being caught by user. */
532
533 int8_t p_stat; /* CHAR: S* process status (from LWP). */
534 uint8_t p_priority; /* U_CHAR: Process priority. */
535 uint8_t p_usrpri; /* U_CHAR: User-priority based on p_cpu and p_nice. */
536 uint8_t p_nice; /* U_CHAR: Process "nice" value. */
537
538 uint16_t p_xstat; /* U_SHORT: Exit status for wait; also stop signal. */
539 uint16_t p_acflag; /* U_SHORT: Accounting flags. */
540
541 char p_comm[KI_MAXCOMLEN];
542
543 char p_wmesg[KI_WMESGLEN]; /* wchan message */
544 uint64_t p_wchan; /* PTR: sleep address. */
545
546 char p_login[KI_MAXLOGNAME]; /* setlogin() name */
547
548 int32_t p_vm_rssize; /* SEGSZ_T: current resident set size in pages */
549 int32_t p_vm_tsize; /* SEGSZ_T: text size (pages) */
550 int32_t p_vm_dsize; /* SEGSZ_T: data size (pages) */
551 int32_t p_vm_ssize; /* SEGSZ_T: stack size (pages) */
552
553 int64_t p_uvalid; /* CHAR: following p_u* members from struct user are valid */
554 /* XXX 64 bits for alignment */
555 uint32_t p_ustart_sec; /* STRUCT TIMEVAL: starting time. */
556 uint32_t p_ustart_usec; /* STRUCT TIMEVAL: starting time. */
557
558 uint32_t p_uutime_sec; /* STRUCT TIMEVAL: user time. */
559 uint32_t p_uutime_usec; /* STRUCT TIMEVAL: user time. */
560 uint32_t p_ustime_sec; /* STRUCT TIMEVAL: system time. */
561 uint32_t p_ustime_usec; /* STRUCT TIMEVAL: system time. */
562
563 uint64_t p_uru_maxrss; /* LONG: max resident set size. */
564 uint64_t p_uru_ixrss; /* LONG: integral shared memory size. */
565 uint64_t p_uru_idrss; /* LONG: integral unshared data ". */
566 uint64_t p_uru_isrss; /* LONG: integral unshared stack ". */
567 uint64_t p_uru_minflt; /* LONG: page reclaims. */
568 uint64_t p_uru_majflt; /* LONG: page faults. */
569 uint64_t p_uru_nswap; /* LONG: swaps. */
570 uint64_t p_uru_inblock; /* LONG: block input operations. */
571 uint64_t p_uru_oublock; /* LONG: block output operations. */
572 uint64_t p_uru_msgsnd; /* LONG: messages sent. */
573 uint64_t p_uru_msgrcv; /* LONG: messages received. */
574 uint64_t p_uru_nsignals; /* LONG: signals received. */
575 uint64_t p_uru_nvcsw; /* LONG: voluntary context switches. */
576 uint64_t p_uru_nivcsw; /* LONG: involuntary ". */
577
578 uint32_t p_uctime_sec; /* STRUCT TIMEVAL: child u+s time. */
579 uint32_t p_uctime_usec; /* STRUCT TIMEVAL: child u+s time. */
580 uint64_t p_cpuid; /* LONG: CPU id */
581 uint64_t p_realflag; /* INT: P_* flags (not including LWPs). */
582 uint64_t p_nlwps; /* LONG: Number of LWPs */
583 uint64_t p_nrlwps; /* LONG: Number of running LWPs */
584 uint64_t p_realstat; /* LONG: non-LWP process status */
585 uint32_t p_svuid; /* UID_T: saved user id */
586 uint32_t p_svgid; /* GID_T: saved group id */
587 char p_ename[KI_MAXEMULLEN]; /* emulation name */
588 int64_t p_vm_vsize; /* SEGSZ_T: total map size (pages) */
589 int64_t p_vm_msize; /* SEGSZ_T: stack-adjusted map size (pages) */
590 };
591
592 /*
593 * Compat flags for kinfo_proc, kinfo_proc2. Not guarenteed to be stable.
594 * Some of them used to be shared with LWP flags.
595 * XXXAD Trim to the minimum necessary...
596 */
597
598 #define P_ADVLOCK 0x00000001
599 #define P_CONTROLT 0x00000002
600 #define L_INMEM 0x00000004
601 #define P_INMEM /* 0x00000004 */ L_INMEM
602 #define P_NOCLDSTOP 0x00000008
603 #define P_PPWAIT 0x00000010
604 #define P_PROFIL 0x00000020
605 #define L_SELECT 0x00000040
606 #define P_SELECT /* 0x00000040 */ L_SELECT
607 #define L_SINTR 0x00000080
608 #define P_SINTR /* 0x00000080 */ L_SINTR
609 #define P_SUGID 0x00000100
610 #define P_SYSTEM 0x00000200
611 #define L_SA 0x00000400
612 #define P_SA /* 0x00000400 */ L_SA
613 #define P_TRACED 0x00000800
614 #define P_WAITED 0x00001000
615 #define P_WEXIT 0x00002000
616 #define P_EXEC 0x00004000
617 #define P_OWEUPC 0x00008000
618 #define P_FSTRACE 0x00010000
619 #define P_NOCLDWAIT 0x00020000
620 #define P_32 0x00040000
621 #define P_CLDSIGIGN 0x00080000
622 #define P_SYSTRACE 0x00200000
623 #define P_CHTRACED 0x00400000
624 #define P_STOPFORK 0x00800000
625 #define P_STOPEXEC 0x01000000
626 #define P_STOPEXIT 0x02000000
627 #define P_SYSCALL 0x04000000
628 #define P_PAXMPROTECT 0x08000000
629 #define P_PAXNOMPROTECT 0x10000000
630
631 /*
632 * LWP compat flags.
633 */
634 #define L_DETACHED 0x00800000
635
636 /*
637 * KERN_LWP structure. See notes on KERN_PROC2 about adding elements.
638 */
639 struct kinfo_lwp {
640 uint64_t l_forw; /* PTR: linked run/sleep queue. */
641 uint64_t l_back;
642 uint64_t l_laddr; /* PTR: Address of LWP */
643 uint64_t l_addr; /* PTR: Kernel virtual addr of u-area */
644 int32_t l_lid; /* LWPID_T: LWP identifier */
645 int32_t l_flag; /* INT: L_* flags. */
646 uint32_t l_swtime; /* U_INT: Time swapped in or out. */
647 uint32_t l_slptime; /* U_INT: Time since last blocked. */
648 int32_t l_schedflags; /* INT: PSCHED_* flags */
649 int32_t l_holdcnt; /* INT: If non-zero, don't swap. */
650 uint8_t l_priority; /* U_CHAR: Process priority. */
651 uint8_t l_usrpri; /* U_CHAR: User-priority based on l_cpu and p_nice. */
652 int8_t l_stat; /* CHAR: S* process status. */
653 int8_t l_pad1; /* fill out to 4-byte boundary */
654 int32_t l_pad2; /* .. and then to an 8-byte boundary */
655 char l_wmesg[KI_WMESGLEN]; /* wchan message */
656 uint64_t l_wchan; /* PTR: sleep address. */
657 uint64_t l_cpuid; /* LONG: CPU id */
658 uint32_t l_rtime_sec; /* STRUCT TIMEVAL: Real time. */
659 uint32_t l_rtime_usec; /* STRUCT TIMEVAL: Real time. */
660 uint32_t l_cpticks; /* INT: ticks during l_swtime */
661 uint32_t l_pctcpu; /* FIXPT_T: cpu usage for ps */
662 uint32_t l_pid; /* PID_T: process identifier */
663 char l_name[KI_LNAMELEN]; /* CHAR[]: name, may be empty */
664 };
665
666 /*
667 * KERN_PROC_ARGS subtypes
668 */
669 #define KERN_PROC_ARGV 1 /* argv */
670 #define KERN_PROC_NARGV 2 /* number of strings in above */
671 #define KERN_PROC_ENV 3 /* environ */
672 #define KERN_PROC_NENV 4 /* number of strings in above */
673
674 /*
675 * KERN_SYSVIPC subtypes
676 */
677 #define KERN_SYSVIPC_INFO 1 /* struct: number of valid kern ids */
678 #define KERN_SYSVIPC_MSG 2 /* int: SysV message queue suppoprt */
679 #define KERN_SYSVIPC_SEM 3 /* int: SysV semaphore support */
680 #define KERN_SYSVIPC_SHM 4 /* int: SysV shared memory support */
681 #define KERN_SYSVIPC_SHMMAX 5 /* int: max shared memory segment size (bytes) */
682 #define KERN_SYSVIPC_SHMMNI 6 /* int: max number of shared memory identifiers */
683 #define KERN_SYSVIPC_SHMSEG 7 /* int: max shared memory segments per process */
684 #define KERN_SYSVIPC_SHMMAXPGS 8 /* int: max amount of shared memory (pages) */
685 #define KERN_SYSVIPC_SHMUSEPHYS 9 /* int: physical memory usage */
686
687 /*
688 * KERN_SYSVIPC_INFO subtypes
689 */
690 #define KERN_SYSVIPC_MSG_INFO 1 /* msginfo and msqid_ds */
691 #define KERN_SYSVIPC_SEM_INFO 2 /* seminfo and semid_ds */
692 #define KERN_SYSVIPC_SHM_INFO 3 /* shminfo and shmid_ds */
693
694 /*
695 * tty counter sysctl variables
696 */
697 #define KERN_TKSTAT_NIN 1 /* total input character */
698 #define KERN_TKSTAT_NOUT 2 /* total output character */
699 #define KERN_TKSTAT_CANCC 3 /* canonical input character */
700 #define KERN_TKSTAT_RAWCC 4 /* raw input character */
701 #define KERN_TKSTAT_MAXID 5 /* number of valid TKSTAT ids */
702
703 #define KERN_TKSTAT_NAMES { \
704 { 0, 0 }, \
705 { "nin", CTLTYPE_QUAD }, \
706 { "nout", CTLTYPE_QUAD }, \
707 { "cancc", CTLTYPE_QUAD }, \
708 { "rawcc", CTLTYPE_QUAD }, \
709 }
710
711 /*
712 * kern.drivers returns an array of these.
713 */
714
715 struct kinfo_drivers {
716 int32_t d_cmajor;
717 int32_t d_bmajor;
718 char d_name[24];
719 };
720
721 /*
722 * KERN_BUF subtypes, like KERN_PROC2, where the four following mib
723 * entries specify "which type of buf", "which particular buf",
724 * "sizeof buf", and "how many". Currently, only "all buf" is
725 * defined.
726 */
727 #define KERN_BUF_ALL 0 /* all buffers */
728
729 /*
730 * kern.buf returns an array of these structures, which are designed
731 * both to be immune to 32/64 bit emulation issues and to provide
732 * backwards compatibility. Note that the order here differs slightly
733 * from the real struct buf in order to achieve proper 64 bit
734 * alignment.
735 */
736 struct buf_sysctl {
737 uint32_t b_flags; /* LONG: B_* flags */
738 int32_t b_error; /* INT: Errno value */
739 int32_t b_prio; /* INT: Hint for buffer queue discipline */
740 uint32_t b_dev; /* DEV_T: Device associated with buffer */
741 uint64_t b_bufsize; /* LONG: Allocated buffer size */
742 uint64_t b_bcount; /* LONG: Valid bytes in buffer */
743 uint64_t b_resid; /* LONG: Remaining I/O */
744 uint64_t b_addr; /* CADDR_T: Memory, superblocks, indirect... */
745 uint64_t b_blkno; /* DADDR_T: Underlying physical block number */
746 uint64_t b_rawblkno; /* DADDR_T: Raw underlying physical block */
747 uint64_t b_iodone; /* PTR: Function called upon completion */
748 uint64_t b_proc; /* PTR: Associated proc if B_PHYS set */
749 uint64_t b_vp; /* PTR: File vnode */
750 uint64_t b_saveaddr; /* PTR: Original b_addr for physio */
751 uint64_t b_lblkno; /* DADDR_T: Logical block number */
752 };
753
754 /*
755 * kern.file2 returns an array of these structures, which are designed
756 * both to be immune to be immune to 32/64 bit emulation issues and to
757 * provide backwards compatibility. The order differs slightly from
758 * that of the real struct file, and some fields are taken from other
759 * structures (struct vnode, struct proc) in order to make the file
760 * information more useful.
761 */
762 struct kinfo_file {
763 uint64_t ki_fileaddr; /* PTR: address of struct file */
764 uint32_t ki_flag; /* INT: flags (see fcntl.h) */
765 uint32_t ki_iflags; /* INT: internal flags */
766 uint32_t ki_ftype; /* INT: descriptor type */
767 uint32_t ki_count; /* UINT: reference count */
768 uint32_t ki_msgcount; /* UINT: references from msg queue */
769 uint32_t ki_usecount; /* INT: number active users */
770 uint64_t ki_fucred; /* PTR: creds for descriptor */
771 uint32_t ki_fuid; /* UID_T: descriptor credentials */
772 uint32_t ki_fgid; /* GID_T: descriptor credentials */
773 uint64_t ki_fops; /* PTR: address of fileops */
774 uint64_t ki_foffset; /* OFF_T: offset */
775 uint64_t ki_fdata; /* PTR: descriptor data */
776
777 /* vnode information to glue this file to something */
778 uint64_t ki_vun; /* PTR: socket, specinfo, etc */
779 uint64_t ki_vsize; /* OFF_T: size of file */
780 uint32_t ki_vtype; /* ENUM: vnode type */
781 uint32_t ki_vtag; /* ENUM: type of underlying data */
782 uint64_t ki_vdata; /* PTR: private data for fs */
783
784 /* process information when retrieved via KERN_FILE_BYPID */
785 uint32_t ki_pid; /* PID_T: process id */
786 int32_t ki_fd; /* INT: descriptor number */
787 uint32_t ki_ofileflags; /* CHAR: open file flags */
788 uint32_t _ki_padto64bits;
789 };
790
791 #define KERN_FILE_BYFILE 1
792 #define KERN_FILE_BYPID 2
793 #define KERN_FILESLOP 10
794
795 /*
796 * CTL_HW identifiers
797 */
798 #define HW_MACHINE 1 /* string: machine class */
799 #define HW_MODEL 2 /* string: specific machine model */
800 #define HW_NCPU 3 /* int: number of cpus */
801 #define HW_BYTEORDER 4 /* int: machine byte order */
802 #define HW_PHYSMEM 5 /* int: total memory (bytes) */
803 #define HW_USERMEM 6 /* int: non-kernel memory (bytes) */
804 #define HW_PAGESIZE 7 /* int: software page size */
805 #define HW_DISKNAMES 8 /* string: disk drive names */
806 #define HW_IOSTATS 9 /* struct: iostats[] */
807 #define HW_MACHINE_ARCH 10 /* string: machine architecture */
808 #define HW_ALIGNBYTES 11 /* int: ALIGNBYTES for the kernel */
809 #define HW_CNMAGIC 12 /* string: console magic sequence(s) */
810 #define HW_PHYSMEM64 13 /* quad: total memory (bytes) */
811 #define HW_USERMEM64 14 /* quad: non-kernel memory (bytes) */
812 #define HW_IOSTATNAMES 15 /* string: iostat names */
813 #define HW_MAXID 15 /* number of valid hw ids */
814 #define HW_NCPUONLINE 16 /* number CPUs online */
815
816 #define CTL_HW_NAMES { \
817 { 0, 0 }, \
818 { "machine", CTLTYPE_STRING }, \
819 { "model", CTLTYPE_STRING }, \
820 { "ncpu", CTLTYPE_INT }, \
821 { "byteorder", CTLTYPE_INT }, \
822 { "physmem", CTLTYPE_INT }, \
823 { "usermem", CTLTYPE_INT }, \
824 { "pagesize", CTLTYPE_INT }, \
825 { "drivenames", CTLTYPE_STRING }, \
826 { "drivestats", CTLTYPE_STRUCT }, \
827 { "machine_arch", CTLTYPE_STRING }, \
828 { "alignbytes", CTLTYPE_INT }, \
829 { "cnmagic", CTLTYPE_STRING }, \
830 { "physmem64", CTLTYPE_QUAD }, \
831 { "usermem64", CTLTYPE_QUAD }, \
832 { "ncpuonline", CTLTYPE_INT }, \
833 }
834
835 /*
836 * CTL_USER definitions
837 */
838 #define USER_CS_PATH 1 /* string: _CS_PATH */
839 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
840 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
841 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
842 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
843 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
844 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
845 #define USER_LINE_MAX 8 /* int: LINE_MAX */
846 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
847 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
848 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
849 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
850 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
851 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
852 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
853 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
854 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
855 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
856 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
857 #define USER_TZNAME_MAX 20 /* int: _POSIX_TZNAME_MAX */
858 #define USER_ATEXIT_MAX 21 /* int: {ATEXIT_MAX} */
859 #define USER_MAXID 22 /* number of valid user ids */
860
861 #define CTL_USER_NAMES { \
862 { 0, 0 }, \
863 { "cs_path", CTLTYPE_STRING }, \
864 { "bc_base_max", CTLTYPE_INT }, \
865 { "bc_dim_max", CTLTYPE_INT }, \
866 { "bc_scale_max", CTLTYPE_INT }, \
867 { "bc_string_max", CTLTYPE_INT }, \
868 { "coll_weights_max", CTLTYPE_INT }, \
869 { "expr_nest_max", CTLTYPE_INT }, \
870 { "line_max", CTLTYPE_INT }, \
871 { "re_dup_max", CTLTYPE_INT }, \
872 { "posix2_version", CTLTYPE_INT }, \
873 { "posix2_c_bind", CTLTYPE_INT }, \
874 { "posix2_c_dev", CTLTYPE_INT }, \
875 { "posix2_char_term", CTLTYPE_INT }, \
876 { "posix2_fort_dev", CTLTYPE_INT }, \
877 { "posix2_fort_run", CTLTYPE_INT }, \
878 { "posix2_localedef", CTLTYPE_INT }, \
879 { "posix2_sw_dev", CTLTYPE_INT }, \
880 { "posix2_upe", CTLTYPE_INT }, \
881 { "stream_max", CTLTYPE_INT }, \
882 { "tzname_max", CTLTYPE_INT }, \
883 { "atexit_max", CTLTYPE_INT }, \
884 }
885
886 /*
887 * CTL_DDB definitions
888 */
889 #define DDBCTL_RADIX 1 /* int: Input and output radix */
890 #define DDBCTL_MAXOFF 2 /* int: max symbol offset */
891 #define DDBCTL_MAXWIDTH 3 /* int: width of the display line */
892 #define DDBCTL_LINES 4 /* int: number of display lines */
893 #define DDBCTL_TABSTOPS 5 /* int: tab width */
894 #define DDBCTL_ONPANIC 6 /* int: DDB on panic if non-zero */
895 #define DDBCTL_FROMCONSOLE 7 /* int: DDB via console if non-zero */
896 #define DDBCTL_MAXID 8 /* number of valid DDB ids */
897
898 #define CTL_DDB_NAMES { \
899 { 0, 0 }, \
900 { "radix", CTLTYPE_INT }, \
901 { "maxoff", CTLTYPE_INT }, \
902 { "maxwidth", CTLTYPE_INT }, \
903 { "lines", CTLTYPE_INT }, \
904 { "tabstops", CTLTYPE_INT }, \
905 { "onpanic", CTLTYPE_INT }, \
906 { "fromconsole", CTLTYPE_INT }, \
907 }
908
909 /*
910 * CTL_DEBUG definitions
911 *
912 * Second level identifier specifies which debug variable.
913 * Third level identifier specifies which structure component.
914 */
915 #define CTL_DEBUG_NAME 0 /* string: variable name */
916 #define CTL_DEBUG_VALUE 1 /* int: variable value */
917 #define CTL_DEBUG_MAXID 20
918
919 /*
920 * CTL_PROC subtype. Either a PID, or a magic value for the current proc.
921 */
922
923 #define PROC_CURPROC (~((u_int)1 << 31))
924
925 /*
926 * CTL_PROC tree: either corename (string), or a limit
927 * (rlimit.<type>.{hard,soft}, int).
928 */
929 #define PROC_PID_CORENAME 1
930 #define PROC_PID_LIMIT 2
931 #define PROC_PID_STOPFORK 3
932 #define PROC_PID_STOPEXEC 4
933 #define PROC_PID_STOPEXIT 5
934 #define PROC_PID_MAXID 6
935
936 #define PROC_PID_NAMES { \
937 { 0, 0 }, \
938 { "corename", CTLTYPE_STRING }, \
939 { "rlimit", CTLTYPE_NODE }, \
940 { "stopfork", CTLTYPE_INT }, \
941 { "stopexec", CTLTYPE_INT }, \
942 { "stopexit", CTLTYPE_INT }, \
943 }
944
945 /* Limit types from <sys/resources.h> */
946 #define PROC_PID_LIMIT_CPU (RLIMIT_CPU+1)
947 #define PROC_PID_LIMIT_FSIZE (RLIMIT_FSIZE+1)
948 #define PROC_PID_LIMIT_DATA (RLIMIT_DATA+1)
949 #define PROC_PID_LIMIT_STACK (RLIMIT_STACK+1)
950 #define PROC_PID_LIMIT_CORE (RLIMIT_CORE+1)
951 #define PROC_PID_LIMIT_RSS (RLIMIT_RSS+1)
952 #define PROC_PID_LIMIT_MEMLOCK (RLIMIT_MEMLOCK+1)
953 #define PROC_PID_LIMIT_NPROC (RLIMIT_NPROC+1)
954 #define PROC_PID_LIMIT_NOFILE (RLIMIT_NOFILE+1)
955 #define PROC_PID_LIMIT_SBSIZE (RLIMIT_SBSIZE+1)
956 #define PROC_PID_LIMIT_AS (RLIMIT_AS+1)
957 #define PROC_PID_LIMIT_MAXID (RLIM_NLIMITS+1)
958
959 #define PROC_PID_LIMIT_NAMES { \
960 { 0, 0 }, \
961 { "cputime", CTLTYPE_NODE }, \
962 { "filesize", CTLTYPE_NODE }, \
963 { "datasize", CTLTYPE_NODE }, \
964 { "stacksize", CTLTYPE_NODE }, \
965 { "coredumpsize", CTLTYPE_NODE }, \
966 { "memoryuse", CTLTYPE_NODE }, \
967 { "memorylocked", CTLTYPE_NODE }, \
968 { "maxproc", CTLTYPE_NODE }, \
969 { "descriptors", CTLTYPE_NODE }, \
970 { "sbsize", CTLTYPE_NODE }, \
971 { "vmemoryuse", CTLTYPE_NODE }, \
972 }
973 /* for each type, either hard or soft value */
974 #define PROC_PID_LIMIT_TYPE_SOFT 1
975 #define PROC_PID_LIMIT_TYPE_HARD 2
976 #define PROC_PID_LIMIT_TYPE_MAXID 3
977
978 #define PROC_PID_LIMIT_TYPE_NAMES { \
979 {0, 0}, \
980 { "soft", CTLTYPE_QUAD }, \
981 { "hard", CTLTYPE_QUAD }, \
982 }
983
984 /*
985 * CTL_EMUL definitions
986 *
987 * Second level identifier specifies which emulation variable.
988 * Subsequent levels are specified in the emulations themselves.
989 */
990 #define EMUL_LINUX 1
991 #define EMUL_IRIX 2
992 #define EMUL_DARWIN 3
993 #define EMUL_MACH 4
994 #define EMUL_LINUX32 5
995
996 #define EMUL_MAXID 6
997 #define CTL_EMUL_NAMES { \
998 { 0, 0 }, \
999 { "linux", CTLTYPE_NODE }, \
1000 { "irix", CTLTYPE_NODE }, \
1001 { "darwin", CTLTYPE_NODE }, \
1002 { "mach", CTLTYPE_NODE }, \
1003 { "linux32", CTLTYPE_NODE }, \
1004 }
1005
1006 #ifdef _KERNEL
1007
1008 #if defined(_KERNEL_OPT)
1009 #include "opt_sysctl.h"
1010 #endif
1011
1012 /* Root node of the kernel sysctl tree */
1013 extern struct sysctlnode sysctl_root;
1014
1015 /*
1016 * A log of nodes created by a setup function or set of setup
1017 * functions so that they can be torn down in one "transaction"
1018 * when no longer needed.
1019 *
1020 * Users of the log merely pass a pointer to a pointer, and the sysctl
1021 * infrastructure takes care of the rest.
1022 */
1023 struct sysctllog;
1024
1025 /*
1026 * CTL_DEBUG variables.
1027 *
1028 * These are declared as separate variables so that they can be
1029 * individually initialized at the location of their associated
1030 * variable. The loader prevents multiple use by issuing errors
1031 * if a variable is initialized in more than one place. They are
1032 * aggregated into an array in debug_sysctl(), so that it can
1033 * conveniently locate them when querried. If more debugging
1034 * variables are added, they must also be declared here and also
1035 * entered into the array.
1036 *
1037 * Note that the debug subtree is largely obsolescent in terms of
1038 * functionality now that we have dynamic sysctl, but the
1039 * infrastructure is retained for backwards compatibility.
1040 */
1041 struct ctldebug {
1042 const char *debugname; /* name of debugging variable */
1043 int *debugvar; /* pointer to debugging variable */
1044 };
1045 #ifdef DEBUG
1046 extern struct ctldebug debug0, debug1, debug2, debug3, debug4;
1047 extern struct ctldebug debug5, debug6, debug7, debug8, debug9;
1048 extern struct ctldebug debug10, debug11, debug12, debug13, debug14;
1049 extern struct ctldebug debug15, debug16, debug17, debug18, debug19;
1050 #endif /* DEBUG */
1051
1052 #define SYSCTLFN_PROTO const int *, u_int, void *, \
1053 size_t *, const void *, size_t, \
1054 const int *, struct lwp *, const struct sysctlnode *
1055 #define SYSCTLFN_ARGS const int *name, u_int namelen, \
1056 void *oldp, size_t *oldlenp, \
1057 const void *newp, size_t newlen, \
1058 const int *oname, struct lwp *l, \
1059 const struct sysctlnode *rnode
1060 #define SYSCTLFN_CALL(node) name, namelen, oldp, \
1061 oldlenp, newp, newlen, \
1062 oname, l, node
1063
1064 #ifdef _LKM
1065
1066 #define SYSCTL_SETUP_PROTO(name) \
1067 void name(struct sysctllog **)
1068 #ifdef SYSCTL_DEBUG_SETUP
1069 #define SYSCTL_SETUP(name, desc) \
1070 SYSCTL_SETUP_PROTO(name); \
1071 static void __CONCAT(___,name)(struct sysctllog **); \
1072 void name(struct sysctllog **clog) { \
1073 printf("%s\n", desc); \
1074 __CONCAT(___,name)(clog); } \
1075 __link_set_add_text(sysctl_funcs, name); \
1076 static void __CONCAT(___,name)(struct sysctllog **clog)
1077 #else /* !SYSCTL_DEBUG_SETUP */
1078 #define SYSCTL_SETUP(name, desc) \
1079 SYSCTL_SETUP_PROTO(name); \
1080 __link_set_add_text(sysctl_funcs, name); \
1081 void name(struct sysctllog **clog)
1082 #endif /* !SYSCTL_DEBUG_SETUP */
1083
1084 #else /* !_LKM */
1085
1086 #define SYSCTL_SETUP_PROTO(name)
1087 #ifdef SYSCTL_DEBUG_SETUP
1088 #define SYSCTL_SETUP(name, desc) \
1089 static void __CONCAT(___,name)(struct sysctllog **); \
1090 static void name(struct sysctllog **clog) { \
1091 printf("%s\n", desc); \
1092 __CONCAT(___,name)(clog); } \
1093 __link_set_add_text(sysctl_funcs, name); \
1094 static void __CONCAT(___,name)(struct sysctllog **clog)
1095 #else /* !SYSCTL_DEBUG_SETUP */
1096 #define SYSCTL_SETUP(name, desc) \
1097 static void name(struct sysctllog **); \
1098 __link_set_add_text(sysctl_funcs, name); \
1099 static void name(struct sysctllog **clog)
1100 #endif /* !SYSCTL_DEBUG_SETUP */
1101 typedef void (*sysctl_setup_func)(struct sysctllog **);
1102
1103 #endif /* !_LKM */
1104
1105 /*
1106 * Internal sysctl function calling convention:
1107 *
1108 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen,
1109 * origname, lwp, node);
1110 *
1111 * The name parameter points at the next component of the name to be
1112 * interpreted. The namelen parameter is the number of integers in
1113 * the name. The origname parameter points to the start of the name
1114 * being parsed. The node parameter points to the node on which the
1115 * current operation is to be performed.
1116 */
1117 typedef int (*sysctlfn)(SYSCTLFN_PROTO);
1118
1119 /*
1120 * used in more than just sysctl
1121 */
1122 void fill_eproc(struct proc *, struct eproc *, bool);
1123
1124 /*
1125 * subsystem setup
1126 */
1127 void sysctl_init(void);
1128
1129 /*
1130 * typical syscall call order
1131 */
1132 void sysctl_lock(bool);
1133 int sysctl_dispatch(SYSCTLFN_PROTO);
1134 void sysctl_unlock(void);
1135 void sysctl_relock(void);
1136
1137 /*
1138 * tree navigation primitives (must obtain lock before using these)
1139 */
1140 int sysctl_locate(struct lwp *, const int *, u_int,
1141 const struct sysctlnode **, int *);
1142 int sysctl_query(SYSCTLFN_PROTO);
1143 int sysctl_create(SYSCTLFN_PROTO);
1144 int sysctl_destroy(SYSCTLFN_PROTO);
1145 int sysctl_lookup(SYSCTLFN_PROTO);
1146 int sysctl_describe(SYSCTLFN_PROTO);
1147
1148 /*
1149 * simple variadic interface for adding/removing nodes
1150 */
1151 int sysctl_createv(struct sysctllog **, int,
1152 const struct sysctlnode **, const struct sysctlnode **,
1153 int, int, const char *, const char *,
1154 sysctlfn, u_quad_t, void *, size_t, ...);
1155 int sysctl_destroyv(struct sysctlnode *, ...);
1156
1157 /*
1158 * miscellany
1159 */
1160 void sysctl_dump(const struct sysctlnode *);
1161 void sysctl_free(struct sysctlnode *);
1162 void sysctl_teardown(struct sysctllog **);
1163
1164 #ifdef SYSCTL_INCLUDE_DESCR
1165 #define SYSCTL_DESCR(s) s
1166 #else /* SYSCTL_INCLUDE_DESCR */
1167 #define SYSCTL_DESCR(s) NULL
1168 #endif /* SYSCTL_INCLUDE_DESCR */
1169
1170 /*
1171 * simple interface similar to old interface for in-kernel consumption
1172 */
1173 int old_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct lwp *);
1174
1175 /*
1176 * these helpers are in other files (XXX so should the nodes be) or
1177 * are used by more than one node
1178 */
1179 int sysctl_hw_tapenames(SYSCTLFN_PROTO);
1180 int sysctl_hw_tapestats(SYSCTLFN_PROTO);
1181 int sysctl_kern_vnode(SYSCTLFN_PROTO);
1182 int sysctl_net_inet_ip_ports(SYSCTLFN_PROTO);
1183 int sysctl_consdev(SYSCTLFN_PROTO);
1184 int sysctl_root_device(SYSCTLFN_PROTO);
1185
1186 /*
1187 * primitive helper stubs
1188 */
1189 int sysctl_needfunc(SYSCTLFN_PROTO);
1190 int sysctl_notavail(SYSCTLFN_PROTO);
1191 int sysctl_null(SYSCTLFN_PROTO);
1192
1193 MALLOC_DECLARE(M_SYSCTLNODE);
1194 MALLOC_DECLARE(M_SYSCTLDATA);
1195
1196 #else /* !_KERNEL */
1197 #include <sys/cdefs.h>
1198
1199 typedef void *sysctlfn;
1200
1201 __BEGIN_DECLS
1202 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
1203 int sysctlbyname(const char *, void *, size_t *, void *, size_t);
1204 int sysctlgetmibinfo(const char *, int *, u_int *,
1205 char *, size_t *, struct sysctlnode **, int);
1206 int sysctlnametomib(const char *, int *, size_t *);
1207 __END_DECLS
1208
1209 #endif /* !_KERNEL */
1210
1211 #ifdef __COMPAT_SYSCTL
1212 /*
1213 * old node definitions go here
1214 */
1215 #endif /* __COMPAT_SYSCTL */
1216
1217 /*
1218 * padding makes alignment magically "work" for 32/64 compatibility at
1219 * the expense of making things bigger on 32 bit platforms.
1220 */
1221 #if defined(_LP64) || (BYTE_ORDER == LITTLE_ENDIAN)
1222 #define __sysc_pad(type) union { uint64_t __sysc_upad; \
1223 struct { type __sysc_sdatum; } __sysc_ustr; }
1224 #else
1225 #define __sysc_pad(type) union { uint64_t __sysc_upad; \
1226 struct { uint32_t __sysc_spad; type __sysc_sdatum; } __sysc_ustr; }
1227 #endif
1228 #define __sysc_unpad(x) x.__sysc_ustr.__sysc_sdatum
1229
1230 /*
1231 * The following is for gcc2, which doesn't handle __sysc_unpad().
1232 * The code gets a little less ugly this way.
1233 */
1234 #define sysc_init_field(field, value) \
1235 .field = { .__sysc_ustr = { .__sysc_sdatum = (value), }, }
1236
1237 struct sysctlnode {
1238 uint32_t sysctl_flags; /* flags and type */
1239 int32_t sysctl_num; /* mib number */
1240 char sysctl_name[SYSCTL_NAMELEN]; /* node name */
1241 uint32_t sysctl_ver; /* node's version vs. rest of tree */
1242 uint32_t __rsvd;
1243 union {
1244 struct {
1245 uint32_t suc_csize; /* size of child node array */
1246 uint32_t suc_clen; /* number of valid children */
1247 __sysc_pad(struct sysctlnode*) _suc_child; /* array of child nodes */
1248 } scu_child;
1249 struct {
1250 __sysc_pad(void*) _sud_data; /* pointer to external data */
1251 __sysc_pad(size_t) _sud_offset; /* offset to data */
1252 } scu_data;
1253 int32_t scu_alias; /* node this node refers to */
1254 int32_t scu_idata; /* immediate "int" data */
1255 u_quad_t scu_qdata; /* immediate "u_quad_t" data */
1256 bool scu_bdata; /* immediate bool data */
1257 } sysctl_un;
1258 __sysc_pad(size_t) _sysctl_size; /* size of instrumented data */
1259 __sysc_pad(sysctlfn) _sysctl_func; /* access helper function */
1260 __sysc_pad(struct sysctlnode*) _sysctl_parent; /* parent of this node */
1261 __sysc_pad(const char *) _sysctl_desc; /* description of node */
1262 };
1263
1264 /*
1265 * padded data
1266 */
1267 #define suc_child __sysc_unpad(_suc_child)
1268 #define sud_data __sysc_unpad(_sud_data)
1269 #define sud_offset __sysc_unpad(_sud_offset)
1270 #define sysctl_size __sysc_unpad(_sysctl_size)
1271 #define sysctl_func __sysc_unpad(_sysctl_func)
1272 #define sysctl_parent __sysc_unpad(_sysctl_parent)
1273 #define sysctl_desc __sysc_unpad(_sysctl_desc)
1274
1275 /*
1276 * nested data (may also be padded)
1277 */
1278 #define sysctl_csize sysctl_un.scu_child.suc_csize
1279 #define sysctl_clen sysctl_un.scu_child.suc_clen
1280 #define sysctl_child sysctl_un.scu_child.suc_child
1281 #define sysctl_data sysctl_un.scu_data.sud_data
1282 #define sysctl_offset sysctl_un.scu_data.sud_offset
1283 #define sysctl_alias sysctl_un.scu_alias
1284 #define sysctl_idata sysctl_un.scu_idata
1285 #define sysctl_qdata sysctl_un.scu_qdata
1286 #define sysctl_bdata sysctl_un.scu_bdata
1287
1288 /*
1289 * when requesting a description of a node (a set of nodes, actually),
1290 * you get back an "array" of these, where the actual length of the
1291 * descr_str is noted in descr_len (which includes the trailing nul
1292 * byte), rounded up to the nearest four (sizeof(int32_t) actually).
1293 *
1294 * NEXT_DESCR() will take a pointer to a description and advance it to
1295 * the next description.
1296 */
1297 struct sysctldesc {
1298 int32_t descr_num; /* mib number of node */
1299 uint32_t descr_ver; /* version of node */
1300 uint32_t descr_len; /* length of description string */
1301 char descr_str[1]; /* not really 1...see above */
1302 };
1303
1304 #define __sysc_desc_roundup(x) ((((x) - 1) | (sizeof(int32_t) - 1)) + 1)
1305 #define __sysc_desc_adv(d, l) \
1306 (/*XXXUNCONST ptr cast*/(struct sysctldesc *) \
1307 __UNCONST(((const char*)(d)) + offsetof(struct sysctldesc, descr_str) +\
1308 __sysc_desc_roundup(l)))
1309 #define NEXT_DESCR(d) __sysc_desc_adv((d), (d)->descr_len)
1310
1311 static __inline const struct sysctlnode *
1312 sysctl_rootof(const struct sysctlnode *n)
1313 {
1314 while (n->sysctl_parent != NULL)
1315 n = n->sysctl_parent;
1316 return (n);
1317 }
1318
1319 #endif /* !_SYS_SYSCTL_H_ */
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