Change sendfile() to use the new m_ext callback scheme for cleaning up after
[dragonfly.git] / sys / sys / sysctl.h
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1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
37 * $FreeBSD: src/sys/sys/sysctl.h,v 1.81.2.10 2003/05/01 22:48:09 trhodes Exp $
e4dfb4c8 38 * $DragonFly: src/sys/sys/sysctl.h,v 1.11 2004/05/26 14:12:34 hmp Exp $
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39 */
40
41#ifndef _SYS_SYSCTL_H_
42#define _SYS_SYSCTL_H_
43
44#include <sys/_posix.h>
45#include <sys/queue.h>
46
47/*
48 * Definitions for sysctl call. The sysctl call uses a hierarchical name
49 * for objects that can be examined or modified. The name is expressed as
50 * a sequence of integers. Like a file path name, the meaning of each
51 * component depends on its place in the hierarchy. The top-level and kern
52 * identifiers are defined here, and other identifiers are defined in the
53 * respective subsystem header files.
54 */
55
56#define CTL_MAXNAME 12 /* largest number of components supported */
57
58/*
59 * Each subsystem defined by sysctl defines a list of variables
60 * for that subsystem. Each name is either a node with further
61 * levels defined below it, or it is a leaf of some particular
62 * type given below. Each sysctl level defines a set of name/type
63 * pairs to be used by sysctl(1) in manipulating the subsystem.
64 */
65struct ctlname {
66 char *ctl_name; /* subsystem name */
67 int ctl_type; /* type of name */
68};
69
70#define CTLTYPE 0xf /* Mask for the type */
71#define CTLTYPE_NODE 1 /* name is a node */
72#define CTLTYPE_INT 2 /* name describes an integer */
73#define CTLTYPE_STRING 3 /* name describes a string */
74#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
75#define CTLTYPE_OPAQUE 5 /* name describes a structure */
76#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
77#define CTLTYPE_UINT 6 /* name describes an unsigned integer */
78#define CTLTYPE_LONG 7 /* name describes a long */
79#define CTLTYPE_ULONG 8 /* name describes an unsigned long */
80
81#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
82#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
83#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
84#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */
85#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
86#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
87#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
88#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
89
90/*
91 * USE THIS instead of a hardwired number from the categories below
92 * to get dynamically assigned sysctl entries using the linker-set
93 * technology. This is the way nearly all new sysctl variables should
94 * be implemented.
95 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
96 */
97#define OID_AUTO (-1)
98
99#ifdef _KERNEL
100#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
101 struct sysctl_req *req
102
103/*
104 * This describes the access space for a sysctl request. This is needed
105 * so that we can use the interface from the kernel or from user-space.
106 */
107struct sysctl_req {
dadab5e9 108 struct thread *td;
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109 int lock;
110 void *oldptr;
111 size_t oldlen;
112 size_t oldidx;
113 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
114 void *newptr;
115 size_t newlen;
116 size_t newidx;
117 int (*newfunc)(struct sysctl_req *, void *, size_t);
118};
119
120SLIST_HEAD(sysctl_oid_list, sysctl_oid);
121
122/*
123 * This describes one "oid" in the MIB tree. Potentially more nodes can
124 * be hidden behind it, expanded by the handler.
125 */
126struct sysctl_oid {
127 struct sysctl_oid_list *oid_parent;
128 SLIST_ENTRY(sysctl_oid) oid_link;
129 int oid_number;
130 int oid_kind;
131 void *oid_arg1;
132 int oid_arg2;
133 const char *oid_name;
134 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
135 const char *oid_fmt;
136 int oid_refcnt;
137 const char *oid_descr;
138};
139
140#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
141#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
142
143int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
144int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
5f2e2a8b 145int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
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146int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
147int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
148int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
149
150/*
151 * These functions are used to add/remove an oid from the mib.
152 */
153void sysctl_register_oid(struct sysctl_oid *oidp);
154void sysctl_unregister_oid(struct sysctl_oid *oidp);
155
156/* Declare a static oid to allow child oids to be added to it. */
157#define SYSCTL_DECL(name) \
158 extern struct sysctl_oid_list sysctl_##name##_children
159
160/* Hide these in macros */
161#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
162 (oid_ptr)->oid_arg1
163#define SYSCTL_STATIC_CHILDREN(oid_name) \
164 (&sysctl_##oid_name##_children)
165
166/* === Structs and macros related to context handling === */
167
168/* All dynamically created sysctls can be tracked in a context list. */
169struct sysctl_ctx_entry {
170 struct sysctl_oid *entry;
171 TAILQ_ENTRY(sysctl_ctx_entry) link;
172};
173
174TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
175
176/* This constructs a "raw" MIB oid. */
177#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
178 static struct sysctl_oid sysctl__##parent##_##name = { \
179 &sysctl_##parent##_children, { 0 }, \
180 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \
181 DATA_SET(sysctl_set, sysctl__##parent##_##name);
182
183#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
184 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr);
185
186/* This constructs a node from which other oids can hang. */
187#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
188 struct sysctl_oid_list sysctl_##parent##_##name##_children; \
189 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
190 (void*)&sysctl_##parent##_##name##_children, 0, handler, \
191 "N", descr);
192
193#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
194 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \
195 0, 0, handler, "N", descr);
196
197/* Oid for a string. len can be 0 to indicate '\0' termination. */
198#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
199 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
200 arg, len, sysctl_handle_string, "A", descr)
201
202#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
203 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \
204 arg, len, sysctl_handle_string, "A", descr);
205
206/* Oid for an int. If ptr is NULL, val is returned. */
207#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
208 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
209 ptr, val, sysctl_handle_int, "I", descr)
210
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211/* Oid for an int. If ptr is NULL, val is returned. */
212#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
213 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \
214 ptr, val, sysctl_handle_quad, "Q", descr)
215
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216#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
217 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \
218 ptr, val, sysctl_handle_int, "I", descr);
219
220/* Oid for an unsigned int. If ptr is NULL, val is returned. */
221#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
222 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \
223 ptr, val, sysctl_handle_int, "IU", descr)
224
225#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
226 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \
227 ptr, val, sysctl_handle_int, "IU", descr);
228
229/* Oid for a long. The pointer must be non NULL. */
230#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
231 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \
232 ptr, val, sysctl_handle_long, "L", descr)
233
234#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
235 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \
236 ptr, 0, sysctl_handle_long, "L", descr);
237
238/* Oid for a long. The pointer must be non NULL. */
239#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
240 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \
241 ptr, val, sysctl_handle_long, "LU", descr)
242
243#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \
245 ptr, 0, sysctl_handle_long, "LU", descr);
246
247/* Oid for an opaque object. Specified by a pointer and a length. */
248#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
249 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
250 ptr, len, sysctl_handle_opaque, fmt, descr)
251
252#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\
253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
254 ptr, len, sysctl_handle_opaque, fmt, descr);
255
256/* Oid for a struct. Specified by a pointer and a type. */
257#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
258 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
259 ptr, sizeof(struct type), sysctl_handle_opaque, \
260 "S," #type, descr)
261
262#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
263 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
264 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr);
265
266/* Oid for a procedure. Specified by a pointer and an arg. */
267#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
268 SYSCTL_OID(parent, nbr, name, access, \
269 ptr, arg, handler, fmt, descr)
270
271#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
272 sysctl_add_oid(ctx, parent, nbr, name, access, \
273 ptr, arg, handler, fmt, descr);
274
275#endif /* _KERNEL */
276
277/*
278 * Top-level identifiers
279 */
280#define CTL_UNSPEC 0 /* unused */
281#define CTL_KERN 1 /* "high kernel": proc, limits */
282#define CTL_VM 2 /* virtual memory */
283#define CTL_VFS 3 /* file system, mount type is next */
284#define CTL_NET 4 /* network, see socket.h */
285#define CTL_DEBUG 5 /* debugging parameters */
286#define CTL_HW 6 /* generic cpu/io */
287#define CTL_MACHDEP 7 /* machine dependent */
288#define CTL_USER 8 /* user-level */
289#define CTL_P1003_1B 9 /* POSIX 1003.1B */
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290#define CTL_LWKT 10 /* light weight kernel threads */
291#define CTL_MAXID 11 /* number of valid top-level ids */
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292
293#define CTL_NAMES { \
294 { 0, 0 }, \
295 { "kern", CTLTYPE_NODE }, \
296 { "vm", CTLTYPE_NODE }, \
297 { "vfs", CTLTYPE_NODE }, \
298 { "net", CTLTYPE_NODE }, \
299 { "debug", CTLTYPE_NODE }, \
300 { "hw", CTLTYPE_NODE }, \
301 { "machdep", CTLTYPE_NODE }, \
302 { "user", CTLTYPE_NODE }, \
303 { "p1003_1b", CTLTYPE_NODE }, \
5f2e2a8b 304 { "lwkt", CTLTYPE_NODE }, \
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305}
306
307/*
308 * CTL_KERN identifiers
309 */
310#define KERN_OSTYPE 1 /* string: system version */
311#define KERN_OSRELEASE 2 /* string: system release */
312#define KERN_OSREV 3 /* int: system revision */
313#define KERN_VERSION 4 /* string: compile time info */
314#define KERN_MAXVNODES 5 /* int: max vnodes */
315#define KERN_MAXPROC 6 /* int: max processes */
316#define KERN_MAXFILES 7 /* int: max open files */
317#define KERN_ARGMAX 8 /* int: max arguments to exec */
318#define KERN_SECURELVL 9 /* int: system security level */
319#define KERN_HOSTNAME 10 /* string: hostname */
320#define KERN_HOSTID 11 /* int: host identifier */
321#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
322#define KERN_VNODE 13 /* struct: vnode structures */
323#define KERN_PROC 14 /* struct: process entries */
324#define KERN_FILE 15 /* struct: file entries */
325#define KERN_PROF 16 /* node: kernel profiling info */
326#define KERN_POSIX1 17 /* int: POSIX.1 version */
327#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
328#define KERN_JOB_CONTROL 19 /* int: is job control available */
329#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
330#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
331#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
332#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
333#define KERN_OSRELDATE 24 /* int: OS release date */
334#define KERN_NTP_PLL 25 /* node: NTP PLL control */
335#define KERN_BOOTFILE 26 /* string: name of booted kernel */
336#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
337#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
338#define KERN_DUMPDEV 29 /* dev_t: device to dump on */
339#define KERN_IPC 30 /* node: anything related to IPC */
340#define KERN_DUMMY 31 /* unused */
341#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
342#define KERN_USRSTACK 33 /* int: address of USRSTACK */
343#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
344#define KERN_MAXID 35 /* number of valid kern ids */
508ceb09 345#define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
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346
347#define CTL_KERN_NAMES { \
348 { 0, 0 }, \
349 { "ostype", CTLTYPE_STRING }, \
350 { "osrelease", CTLTYPE_STRING }, \
351 { "osrevision", CTLTYPE_INT }, \
352 { "version", CTLTYPE_STRING }, \
353 { "maxvnodes", CTLTYPE_INT }, \
354 { "maxproc", CTLTYPE_INT }, \
355 { "maxfiles", CTLTYPE_INT }, \
356 { "argmax", CTLTYPE_INT }, \
357 { "securelevel", CTLTYPE_INT }, \
358 { "hostname", CTLTYPE_STRING }, \
359 { "hostid", CTLTYPE_UINT }, \
360 { "clockrate", CTLTYPE_STRUCT }, \
361 { "vnode", CTLTYPE_STRUCT }, \
362 { "proc", CTLTYPE_STRUCT }, \
363 { "file", CTLTYPE_STRUCT }, \
364 { "profiling", CTLTYPE_NODE }, \
365 { "posix1version", CTLTYPE_INT }, \
366 { "ngroups", CTLTYPE_INT }, \
367 { "job_control", CTLTYPE_INT }, \
368 { "saved_ids", CTLTYPE_INT }, \
369 { "boottime", CTLTYPE_STRUCT }, \
370 { "nisdomainname", CTLTYPE_STRING }, \
371 { "update", CTLTYPE_INT }, \
372 { "osreldate", CTLTYPE_INT }, \
373 { "ntp_pll", CTLTYPE_NODE }, \
374 { "bootfile", CTLTYPE_STRING }, \
375 { "maxfilesperproc", CTLTYPE_INT }, \
376 { "maxprocperuid", CTLTYPE_INT }, \
508ceb09 377 { "maxposixlocksperuid", CTLTYPE_INT }, \
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378 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
379 { "ipc", CTLTYPE_NODE }, \
380 { "dummy", CTLTYPE_INT }, \
381 { "ps_strings", CTLTYPE_INT }, \
382 { "usrstack", CTLTYPE_INT }, \
383 { "logsigexit", CTLTYPE_INT }, \
384}
385
386/*
387 * CTL_VFS identifiers
388 */
389#define CTL_VFS_NAMES { \
390 { "vfsconf", CTLTYPE_STRUCT }, \
391}
392
393/*
394 * KERN_PROC subtypes
395 */
396#define KERN_PROC_ALL 0 /* everything */
397#define KERN_PROC_PID 1 /* by process id */
398#define KERN_PROC_PGRP 2 /* by process group id */
399#define KERN_PROC_SESSION 3 /* by session of pid */
400#define KERN_PROC_TTY 4 /* by controlling tty */
401#define KERN_PROC_UID 5 /* by effective uid */
402#define KERN_PROC_RUID 6 /* by real uid */
403#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
404
405/*
406 * KERN_IPC identifiers
407 */
408#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
409#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
410#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
411#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
412#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
413#define KIPC_MAX_HDR 6 /* int: max total length of headers */
414#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
415#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
416#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
417
418/*
419 * CTL_HW identifiers
420 */
421#define HW_MACHINE 1 /* string: machine class */
422#define HW_MODEL 2 /* string: specific machine model */
423#define HW_NCPU 3 /* int: number of cpus */
424#define HW_BYTEORDER 4 /* int: machine byte order */
425#define HW_PHYSMEM 5 /* int: total memory */
426#define HW_USERMEM 6 /* int: non-kernel memory */
427#define HW_PAGESIZE 7 /* int: software page size */
428#define HW_DISKNAMES 8 /* strings: disk drive names */
429#define HW_DISKSTATS 9 /* struct: diskstats[] */
430#define HW_FLOATINGPT 10 /* int: has HW floating point? */
431#define HW_MACHINE_ARCH 11 /* string: machine architecture */
432#define HW_MAXID 12 /* number of valid hw ids */
433
434#define CTL_HW_NAMES { \
435 { 0, 0 }, \
436 { "machine", CTLTYPE_STRING }, \
437 { "model", CTLTYPE_STRING }, \
438 { "ncpu", CTLTYPE_INT }, \
439 { "byteorder", CTLTYPE_INT }, \
440 { "physmem", CTLTYPE_UINT }, \
441 { "usermem", CTLTYPE_UINT }, \
442 { "pagesize", CTLTYPE_INT }, \
443 { "disknames", CTLTYPE_STRUCT }, \
444 { "diskstats", CTLTYPE_STRUCT }, \
445 { "floatingpoint", CTLTYPE_INT }, \
446}
447
448/*
449 * CTL_USER definitions
450 */
451#define USER_CS_PATH 1 /* string: _CS_PATH */
452#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
453#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
454#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
455#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
456#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
457#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
458#define USER_LINE_MAX 8 /* int: LINE_MAX */
459#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
460#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
461#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
462#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
463#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
464#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
465#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
466#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
467#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
468#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
469#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
470#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
471#define USER_MAXID 21 /* number of valid user ids */
472
473#define CTL_USER_NAMES { \
474 { 0, 0 }, \
475 { "cs_path", CTLTYPE_STRING }, \
476 { "bc_base_max", CTLTYPE_INT }, \
477 { "bc_dim_max", CTLTYPE_INT }, \
478 { "bc_scale_max", CTLTYPE_INT }, \
479 { "bc_string_max", CTLTYPE_INT }, \
480 { "coll_weights_max", CTLTYPE_INT }, \
481 { "expr_nest_max", CTLTYPE_INT }, \
482 { "line_max", CTLTYPE_INT }, \
483 { "re_dup_max", CTLTYPE_INT }, \
484 { "posix2_version", CTLTYPE_INT }, \
485 { "posix2_c_bind", CTLTYPE_INT }, \
486 { "posix2_c_dev", CTLTYPE_INT }, \
487 { "posix2_char_term", CTLTYPE_INT }, \
488 { "posix2_fort_dev", CTLTYPE_INT }, \
489 { "posix2_fort_run", CTLTYPE_INT }, \
490 { "posix2_localedef", CTLTYPE_INT }, \
491 { "posix2_sw_dev", CTLTYPE_INT }, \
492 { "posix2_upe", CTLTYPE_INT }, \
493 { "stream_max", CTLTYPE_INT }, \
494 { "tzname_max", CTLTYPE_INT }, \
495}
496
497#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
498#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
499#define CTL_P1003_1B_MEMLOCK 3 /* boolean */
500#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
501#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
502#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
503#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
504#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
505#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
506#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
507#define CTL_P1003_1B_FSYNC 11 /* boolean */
508#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
509#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
510#define CTL_P1003_1B_TIMERS 14 /* boolean */
511#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
512#define CTL_P1003_1B_AIO_MAX 16 /* int */
513#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
514#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
515#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
516#define CTL_P1003_1B_PAGESIZE 20 /* int */
517#define CTL_P1003_1B_RTSIG_MAX 21 /* int */
518#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
519#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
520#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
521#define CTL_P1003_1B_TIMER_MAX 25 /* int */
522
523#define CTL_P1003_1B_MAXID 26
524
525#define CTL_P1003_1B_NAMES { \
526 { 0, 0 }, \
527 { "asynchronous_io", CTLTYPE_INT }, \
528 { "mapped_files", CTLTYPE_INT }, \
529 { "memlock", CTLTYPE_INT }, \
530 { "memlock_range", CTLTYPE_INT }, \
531 { "memory_protection", CTLTYPE_INT }, \
532 { "message_passing", CTLTYPE_INT }, \
533 { "prioritized_io", CTLTYPE_INT }, \
534 { "priority_scheduling", CTLTYPE_INT }, \
535 { "realtime_signals", CTLTYPE_INT }, \
536 { "semaphores", CTLTYPE_INT }, \
537 { "fsync", CTLTYPE_INT }, \
538 { "shared_memory_objects", CTLTYPE_INT }, \
539 { "synchronized_io", CTLTYPE_INT }, \
540 { "timers", CTLTYPE_INT }, \
541 { "aio_listio_max", CTLTYPE_INT }, \
542 { "aio_max", CTLTYPE_INT }, \
543 { "aio_prio_delta_max", CTLTYPE_INT }, \
544 { "delaytimer_max", CTLTYPE_INT }, \
545 { "mq_open_max", CTLTYPE_INT }, \
546 { "pagesize", CTLTYPE_INT }, \
547 { "rtsig_max", CTLTYPE_INT }, \
548 { "nsems_max", CTLTYPE_INT }, \
549 { "sem_value_max", CTLTYPE_INT }, \
550 { "sigqueue_max", CTLTYPE_INT }, \
551 { "timer_max", CTLTYPE_INT }, \
552}
553
554#ifdef _KERNEL
555
556/*
557 * Declare some common oids.
558 */
559extern struct sysctl_oid_list sysctl__children;
560SYSCTL_DECL(_kern);
561SYSCTL_DECL(_sysctl);
562SYSCTL_DECL(_vm);
563SYSCTL_DECL(_vfs);
564SYSCTL_DECL(_net);
565SYSCTL_DECL(_debug);
566SYSCTL_DECL(_hw);
567SYSCTL_DECL(_machdep);
568SYSCTL_DECL(_user);
569SYSCTL_DECL(_compat);
5f2e2a8b 570SYSCTL_DECL(_lwkt);
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572/*
573 * Common second-level oids.
574 */
575SYSCTL_DECL(_kern_ipc);
576
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577extern char machine[];
578extern char osrelease[];
579extern char ostype[];
cf75fe93 580extern char kern_ident[];
984263bc 581
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582/* Dynamic oid handling */
583struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
584 struct sysctl_oid_list *parent, int nbr, const char *name,
585 int kind, void *arg1, int arg2,
586 int (*handler) (SYSCTL_HANDLER_ARGS),
587 const char *fmt, const char *descr);
588int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
589int sysctl_ctx_init(struct sysctl_ctx_list *clist);
590int sysctl_ctx_free(struct sysctl_ctx_list *clist);
591struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
592 struct sysctl_oid *oidp);
593struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
594 struct sysctl_oid *oidp);
595int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
596 struct sysctl_oid *oidp);
597
41c20dac 598int kernel_sysctl(int *name, u_int namelen, void *old,
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599 size_t *oldlenp, void *new, size_t newlen,
600 size_t *retval);
41c20dac 601int kernel_sysctlbyname(char *name,
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602 void *old, size_t *oldlenp, void *new, size_t newlen,
603 size_t *retval);
41c20dac 604int userland_sysctl(int *name, u_int namelen, void *old,
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605 size_t *oldlenp, int inkernel, void *new, size_t newlen,
606 size_t *retval);
607int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
608 int *nindx, struct sysctl_req *req);
609
610#else /* !_KERNEL */
611#include <sys/cdefs.h>
612
613__BEGIN_DECLS
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614int sysctl (int *, u_int, void *, size_t *, void *, size_t);
615int sysctlbyname (const char *, void *, size_t *, void *, size_t);
7e6e612a 616int sysctlnametomib (const char *, int *, size_t *);
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617__END_DECLS
618#endif /* _KERNEL */
619
620#endif /* !_SYS_SYSCTL_H_ */