kernel - Remove dsched
[dragonfly.git] / sys / sys / sysctl.h
CommitLineData
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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
00f0918d 37 * $FreeBSD: head/sys/sys/sysctl.h 204170 2010-02-21 13:57:02Z ed $
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38 */
39
40#ifndef _SYS_SYSCTL_H_
41#define _SYS_SYSCTL_H_
42
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43#ifndef _SYS_TYPES_H_
44#include <sys/types.h>
45#endif
1bd40720 46#ifndef _SYS_QUEUE_H_
984263bc 47#include <sys/queue.h>
1bd40720 48#endif
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49
50/*
51 * Definitions for sysctl call. The sysctl call uses a hierarchical name
52 * for objects that can be examined or modified. The name is expressed as
53 * a sequence of integers. Like a file path name, the meaning of each
54 * component depends on its place in the hierarchy. The top-level and kern
55 * identifiers are defined here, and other identifiers are defined in the
56 * respective subsystem header files.
57 */
58
59#define CTL_MAXNAME 12 /* largest number of components supported */
60
61/*
62 * Each subsystem defined by sysctl defines a list of variables
63 * for that subsystem. Each name is either a node with further
64 * levels defined below it, or it is a leaf of some particular
65 * type given below. Each sysctl level defines a set of name/type
66 * pairs to be used by sysctl(1) in manipulating the subsystem.
67 */
68struct ctlname {
69 char *ctl_name; /* subsystem name */
70 int ctl_type; /* type of name */
71};
72
73#define CTLTYPE 0xf /* Mask for the type */
74#define CTLTYPE_NODE 1 /* name is a node */
75#define CTLTYPE_INT 2 /* name describes an integer */
76#define CTLTYPE_STRING 3 /* name describes a string */
77#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
78#define CTLTYPE_OPAQUE 5 /* name describes a structure */
79#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
80#define CTLTYPE_UINT 6 /* name describes an unsigned integer */
81#define CTLTYPE_LONG 7 /* name describes a long */
82#define CTLTYPE_ULONG 8 /* name describes an unsigned long */
23833bb7 83#define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */
984263bc 84
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85#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
86#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
87#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
88#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
89#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
90#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
91#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
92#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
93#define CTLMASK_SECURE 0x00F00000 /* Secure level */
8e82189d 94#define CTLFLAG_DYING 0x00010000 /* Oid is being removed */
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95#define CTLFLAG_SHLOCK 0x00008000 /* shlock on write (def is exlock) */
96#define CTLFLAG_EXLOCK 0x00004000 /* exlock on read (def is shlock) */
97#define CTLMASK_TYPE 0x0000000F /* type field */
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98
99/*
100 * USE THIS instead of a hardwired number from the categories below
101 * to get dynamically assigned sysctl entries using the linker-set
102 * technology. This is the way nearly all new sysctl variables should
103 * be implemented.
104 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
105 */
106#define OID_AUTO (-1)
107
108#ifdef _KERNEL
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109
110#include <sys/kernel.h> /* for DATA_SET */
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111#ifndef _SYS_LOCK_H_
112#include <sys/lock.h>
113#endif
5c296a17 114
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115#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
116 struct sysctl_req *req
117
118/*
119 * This describes the access space for a sysctl request. This is needed
120 * so that we can use the interface from the kernel or from user-space.
121 */
122struct sysctl_req {
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123 struct thread *td; /* used for access checking */
124 int lock; /* wiring state */
984263bc 125 void *oldptr;
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126 size_t oldlen;
127 size_t oldidx;
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128 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
129 void *newptr;
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130 size_t newlen;
131 size_t newidx;
984263bc 132 int (*newfunc)(struct sysctl_req *, void *, size_t);
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133 size_t validlen;
134 int flags;
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135};
136
137SLIST_HEAD(sysctl_oid_list, sysctl_oid);
138
139/*
140 * This describes one "oid" in the MIB tree. Potentially more nodes can
141 * be hidden behind it, expanded by the handler.
142 */
143struct sysctl_oid {
144 struct sysctl_oid_list *oid_parent;
145 SLIST_ENTRY(sysctl_oid) oid_link;
146 int oid_number;
147 int oid_kind;
148 void *oid_arg1;
149 int oid_arg2;
150 const char *oid_name;
151 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
152 const char *oid_fmt;
153 int oid_refcnt;
8e82189d 154 u_int oid_running;
984263bc 155 const char *oid_descr;
6f1a15dc 156 struct lock oid_lock; /* per-node lock */
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157};
158
159#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
160#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
161
162int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
163int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
5f2e2a8b 164int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
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165int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
166int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
167int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
168
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169extern struct lock sysctllock;
170
171#define SYSCTL_XLOCK() lockmgr(&sysctllock, LK_EXCLUSIVE)
172#define SYSCTL_XUNLOCK() lockmgr(&sysctllock, LK_RELEASE)
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173#define SYSCTL_SLOCK() lockmgr(&sysctllock, LK_SHARED)
174#define SYSCTL_SUNLOCK() lockmgr(&sysctllock, LK_RELEASE)
b750642b 175#define SYSCTL_ASSERT_LOCKED() \
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176 KKASSERT(lockstatus(&sysctllock, curthread) != 0)
177
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178/*
179 * These functions are used to add/remove an oid from the mib.
180 */
181void sysctl_register_oid(struct sysctl_oid *oidp);
182void sysctl_unregister_oid(struct sysctl_oid *oidp);
183
184/* Declare a static oid to allow child oids to be added to it. */
185#define SYSCTL_DECL(name) \
186 extern struct sysctl_oid_list sysctl_##name##_children
187
188/* Hide these in macros */
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189#define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \
190 (oid_ptr)->oid_arg1 = (children); \
191} while(0)
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192#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
193 (oid_ptr)->oid_arg1
194#define SYSCTL_STATIC_CHILDREN(oid_name) \
195 (&sysctl_##oid_name##_children)
196
197/* === Structs and macros related to context handling === */
198
199/* All dynamically created sysctls can be tracked in a context list. */
200struct sysctl_ctx_entry {
201 struct sysctl_oid *entry;
202 TAILQ_ENTRY(sysctl_ctx_entry) link;
203};
204
205TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
206
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207#define SYSCTL_NODE_CHILDREN(parent, name) \
208 sysctl_##parent##_##name##_children
209
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210#ifndef NO_SYSCTL_DESCR
211#define __DESCR(d) d
212#else
213#define __DESCR(d) ""
214#endif
984263bc 215
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216/* This constructs a "raw" MIB oid. */
217#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)\
218 static struct sysctl_oid sysctl__##parent##_##name = { \
219 &sysctl_##parent##_children, \
220 { NULL }, \
221 nbr, \
222 kind, \
223 a1, \
224 a2, \
225 #name, \
226 handler, \
227 fmt, \
228 0, \
229 0, \
230 __DESCR(descr) \
231 }; \
232 DATA_SET(sysctl_set, sysctl__##parent##_##name)
233
234#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
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235 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr);
236
237/* This constructs a node from which other oids can hang. */
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238#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
239 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \
240 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \
8e82189d 241 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr)
984263bc 242
7c8eb122 243#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
dacf70b9 244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
be69ad2a 245 0, 0, handler, "N", descr)
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246
247/* Oid for a string. len can be 0 to indicate '\0' termination. */
7c8eb122 248#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
dacf70b9 249 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
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250 arg, len, sysctl_handle_string, "A", descr)
251
7c8eb122 252#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
dacf70b9 253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
be69ad2a 254 arg, len, sysctl_handle_string, "A", descr)
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255
256/* Oid for an int. If ptr is NULL, val is returned. */
8e82189d 257#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
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258 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \
259 ptr, val, sysctl_handle_int, "I", descr)
984263bc 260
7c8eb122 261#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
dacf70b9 262 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \
be69ad2a 263 ptr, val, sysctl_handle_int, "I", descr)
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264
265/* Oid for a quad. If ptr is NULL, val is returned. */
7c8eb122 266#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
dacf70b9 267 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|(access), \
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268 ptr, val, sysctl_handle_quad, "Q", descr)
269
7c8eb122 270#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
dacf70b9 271 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|(access), \
be69ad2a 272 ptr, val, sysctl_handle_quad, "Q", descr)
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273
274/* Oid for an unsigned quad. If ptr is NULL, val is returned. */
7c8eb122 275#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \
dacf70b9 276 SYSCTL_OID(parent, nbr, name, CTLTYPE_UQUAD|(access), \
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277 ptr, val, sysctl_handle_quad, "QU", descr)
278
7c8eb122 279#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \
dacf70b9 280 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UQUAD|(access), \
be69ad2a 281 ptr, val, sysctl_handle_quad, "QU", descr)
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282
283/* Oid for an unsigned int. If ptr is NULL, val is returned. */
7c8eb122 284#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
dacf70b9 285 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \
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286 ptr, val, sysctl_handle_int, "IU", descr)
287
7c8eb122 288#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
dacf70b9 289 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \
be69ad2a 290 ptr, val, sysctl_handle_int, "IU", descr)
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291
292/* Oid for a long. The pointer must be non NULL. */
7c8eb122 293#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
dacf70b9 294 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \
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295 ptr, val, sysctl_handle_long, "L", descr)
296
7c8eb122 297#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
dacf70b9 298 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \
be69ad2a 299 ptr, 0, sysctl_handle_long, "L", descr)
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300
301/* Oid for a long. The pointer must be non NULL. */
7c8eb122 302#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
dacf70b9 303 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \
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304 ptr, val, sysctl_handle_long, "LU", descr)
305
7c8eb122 306#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
dacf70b9 307 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \
be69ad2a 308 ptr, 0, sysctl_handle_long, "LU", descr)
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309
310/* Oid for an opaque object. Specified by a pointer and a length. */
7c8eb122 311#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
dacf70b9 312 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
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313 ptr, len, sysctl_handle_opaque, fmt, descr)
314
7c8eb122 315#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
dacf70b9 316 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
be69ad2a 317 ptr, len, sysctl_handle_opaque, fmt, descr)
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318
319/* Oid for a struct. Specified by a pointer and a type. */
7c8eb122 320#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
dacf70b9 321 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
7c8eb122 322 ptr, sizeof(struct type), sysctl_handle_opaque, \
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323 "S," #type, descr)
324
325#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
dacf70b9 326 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
be69ad2a 327 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
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328
329/* Oid for a procedure. Specified by a pointer and an arg. */
330#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
dacf70b9 331 SYSCTL_OID(parent, nbr, name, (access), \
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332 ptr, arg, handler, fmt, descr)
333
334#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
dacf70b9 335 sysctl_add_oid(ctx, parent, nbr, name, (access), \
be69ad2a 336 ptr, arg, handler, fmt, descr)
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337
338#endif /* _KERNEL */
339
340/*
341 * Top-level identifiers
342 */
343#define CTL_UNSPEC 0 /* unused */
344#define CTL_KERN 1 /* "high kernel": proc, limits */
345#define CTL_VM 2 /* virtual memory */
346#define CTL_VFS 3 /* file system, mount type is next */
347#define CTL_NET 4 /* network, see socket.h */
348#define CTL_DEBUG 5 /* debugging parameters */
349#define CTL_HW 6 /* generic cpu/io */
350#define CTL_MACHDEP 7 /* machine dependent */
351#define CTL_USER 8 /* user-level */
352#define CTL_P1003_1B 9 /* POSIX 1003.1B */
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353#define CTL_LWKT 10 /* light weight kernel threads */
354#define CTL_MAXID 11 /* number of valid top-level ids */
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355
356#define CTL_NAMES { \
357 { 0, 0 }, \
358 { "kern", CTLTYPE_NODE }, \
359 { "vm", CTLTYPE_NODE }, \
360 { "vfs", CTLTYPE_NODE }, \
361 { "net", CTLTYPE_NODE }, \
362 { "debug", CTLTYPE_NODE }, \
363 { "hw", CTLTYPE_NODE }, \
364 { "machdep", CTLTYPE_NODE }, \
365 { "user", CTLTYPE_NODE }, \
366 { "p1003_1b", CTLTYPE_NODE }, \
5f2e2a8b 367 { "lwkt", CTLTYPE_NODE }, \
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368}
369
370/*
371 * CTL_KERN identifiers
372 */
373#define KERN_OSTYPE 1 /* string: system version */
374#define KERN_OSRELEASE 2 /* string: system release */
375#define KERN_OSREV 3 /* int: system revision */
376#define KERN_VERSION 4 /* string: compile time info */
377#define KERN_MAXVNODES 5 /* int: max vnodes */
378#define KERN_MAXPROC 6 /* int: max processes */
379#define KERN_MAXFILES 7 /* int: max open files */
380#define KERN_ARGMAX 8 /* int: max arguments to exec */
381#define KERN_SECURELVL 9 /* int: system security level */
382#define KERN_HOSTNAME 10 /* string: hostname */
383#define KERN_HOSTID 11 /* int: host identifier */
384#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
385#define KERN_VNODE 13 /* struct: vnode structures */
386#define KERN_PROC 14 /* struct: process entries */
387#define KERN_FILE 15 /* struct: file entries */
388#define KERN_PROF 16 /* node: kernel profiling info */
389#define KERN_POSIX1 17 /* int: POSIX.1 version */
390#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
391#define KERN_JOB_CONTROL 19 /* int: is job control available */
392#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
393#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
394#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
395#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
396#define KERN_OSRELDATE 24 /* int: OS release date */
397#define KERN_NTP_PLL 25 /* node: NTP PLL control */
398#define KERN_BOOTFILE 26 /* string: name of booted kernel */
399#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
400#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
b13267a5 401#define KERN_DUMPDEV 29 /* udev_t: device to dump on */
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402#define KERN_IPC 30 /* node: anything related to IPC */
403#define KERN_DUMMY 31 /* unused */
404#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
405#define KERN_USRSTACK 33 /* int: address of USRSTACK */
406#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
cbd0496d 407#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
508ceb09 408#define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
cbd0496d 409#define KERN_MAXID 37 /* number of valid kern ids */
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410
411#define CTL_KERN_NAMES { \
412 { 0, 0 }, \
413 { "ostype", CTLTYPE_STRING }, \
414 { "osrelease", CTLTYPE_STRING }, \
415 { "osrevision", CTLTYPE_INT }, \
416 { "version", CTLTYPE_STRING }, \
417 { "maxvnodes", CTLTYPE_INT }, \
418 { "maxproc", CTLTYPE_INT }, \
419 { "maxfiles", CTLTYPE_INT }, \
420 { "argmax", CTLTYPE_INT }, \
421 { "securelevel", CTLTYPE_INT }, \
422 { "hostname", CTLTYPE_STRING }, \
423 { "hostid", CTLTYPE_UINT }, \
424 { "clockrate", CTLTYPE_STRUCT }, \
425 { "vnode", CTLTYPE_STRUCT }, \
426 { "proc", CTLTYPE_STRUCT }, \
427 { "file", CTLTYPE_STRUCT }, \
428 { "profiling", CTLTYPE_NODE }, \
429 { "posix1version", CTLTYPE_INT }, \
430 { "ngroups", CTLTYPE_INT }, \
431 { "job_control", CTLTYPE_INT }, \
432 { "saved_ids", CTLTYPE_INT }, \
433 { "boottime", CTLTYPE_STRUCT }, \
434 { "nisdomainname", CTLTYPE_STRING }, \
435 { "update", CTLTYPE_INT }, \
436 { "osreldate", CTLTYPE_INT }, \
437 { "ntp_pll", CTLTYPE_NODE }, \
438 { "bootfile", CTLTYPE_STRING }, \
439 { "maxfilesperproc", CTLTYPE_INT }, \
440 { "maxprocperuid", CTLTYPE_INT }, \
441 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
442 { "ipc", CTLTYPE_NODE }, \
443 { "dummy", CTLTYPE_INT }, \
444 { "ps_strings", CTLTYPE_INT }, \
445 { "usrstack", CTLTYPE_INT }, \
446 { "logsigexit", CTLTYPE_INT }, \
cbd0496d 447 { "iov_max", CTLTYPE_INT }, \
90049424 448 { "maxposixlocksperuid", CTLTYPE_INT }, \
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449}
450
451/*
452 * CTL_VFS identifiers
453 */
454#define CTL_VFS_NAMES { \
455 { "vfsconf", CTLTYPE_STRUCT }, \
456}
457
458/*
459 * KERN_PROC subtypes
460 */
461#define KERN_PROC_ALL 0 /* everything */
462#define KERN_PROC_PID 1 /* by process id */
463#define KERN_PROC_PGRP 2 /* by process group id */
464#define KERN_PROC_SESSION 3 /* by session of pid */
465#define KERN_PROC_TTY 4 /* by controlling tty */
466#define KERN_PROC_UID 5 /* by effective uid */
467#define KERN_PROC_RUID 6 /* by real uid */
468#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
a45611c5 469#define KERN_PROC_CWD 8 /* get cwd */
8db2f603 470#define KERN_PROC_PATHNAME 9 /* path to executable */
f849311b 471
984263bc 472
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473#define KERN_PROC_FLAGMASK 0x10
474#define KERN_PROC_FLAG_LWP 0x10
475
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476/*
477 * KERN_IPC identifiers
478 */
479#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
480#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
481#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
482#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
483#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
484#define KIPC_MAX_HDR 6 /* int: max total length of headers */
485#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
486#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
487#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
488
489/*
490 * CTL_HW identifiers
491 */
492#define HW_MACHINE 1 /* string: machine class */
493#define HW_MODEL 2 /* string: specific machine model */
494#define HW_NCPU 3 /* int: number of cpus */
495#define HW_BYTEORDER 4 /* int: machine byte order */
496#define HW_PHYSMEM 5 /* int: total memory */
497#define HW_USERMEM 6 /* int: non-kernel memory */
498#define HW_PAGESIZE 7 /* int: software page size */
499#define HW_DISKNAMES 8 /* strings: disk drive names */
500#define HW_DISKSTATS 9 /* struct: diskstats[] */
501#define HW_FLOATINGPT 10 /* int: has HW floating point? */
502#define HW_MACHINE_ARCH 11 /* string: machine architecture */
0955fd91 503#define HW_MACHINE_PLATFORM 12 /* string: platform architecture */
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504#define HW_SENSORS 13 /* node: hardware sensors */
505#define HW_MAXID 14 /* number of valid hw ids */
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506
507#define CTL_HW_NAMES { \
508 { 0, 0 }, \
509 { "machine", CTLTYPE_STRING }, \
510 { "model", CTLTYPE_STRING }, \
511 { "ncpu", CTLTYPE_INT }, \
512 { "byteorder", CTLTYPE_INT }, \
39d69dae 513 { "physmem", CTLTYPE_ULONG }, \
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514 { "usermem", CTLTYPE_UINT }, \
515 { "pagesize", CTLTYPE_INT }, \
516 { "disknames", CTLTYPE_STRUCT }, \
517 { "diskstats", CTLTYPE_STRUCT }, \
518 { "floatingpoint", CTLTYPE_INT }, \
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519 { "arch", CTLTYPE_STRING }, \
520 { "platform", CTLTYPE_STRING }, \
521 { "sensors", CTLTYPE_NODE }, \
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522}
523
524/*
525 * CTL_USER definitions
526 */
527#define USER_CS_PATH 1 /* string: _CS_PATH */
528#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
529#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
530#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
531#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
532#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
533#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
534#define USER_LINE_MAX 8 /* int: LINE_MAX */
535#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
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536#define USER_POSIX2_VERSION 10 /* int: _POSIX2_VERSION */
537#define USER_POSIX2_C_BIND 11 /* int: _POSIX2_C_BIND */
538#define USER_POSIX2_C_DEV 12 /* int: _POSIX2_C_DEV */
539#define USER_POSIX2_CHAR_TERM 13 /* int: _POSIX2_CHAR_TERM */
540#define USER_POSIX2_FORT_DEV 14 /* int: _POSIX2_FORT_DEV */
541#define USER_POSIX2_FORT_RUN 15 /* int: _POSIX2_FORT_RUN */
542#define USER_POSIX2_LOCALEDEF 16 /* int: _POSIX2_LOCALEDEF */
543#define USER_POSIX2_SW_DEV 17 /* int: _POSIX2_SW_DEV */
544#define USER_POSIX2_UPE 18 /* int: _POSIX2_UPE */
545#define USER_STREAM_MAX 19 /* int: _POSIX2_STREAM_MAX */
546#define USER_TZNAME_MAX 20 /* int: _POSIX2_TZNAME_MAX */
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547#define USER_MAXID 21 /* number of valid user ids */
548
549#define CTL_USER_NAMES { \
550 { 0, 0 }, \
551 { "cs_path", CTLTYPE_STRING }, \
552 { "bc_base_max", CTLTYPE_INT }, \
553 { "bc_dim_max", CTLTYPE_INT }, \
554 { "bc_scale_max", CTLTYPE_INT }, \
555 { "bc_string_max", CTLTYPE_INT }, \
556 { "coll_weights_max", CTLTYPE_INT }, \
557 { "expr_nest_max", CTLTYPE_INT }, \
558 { "line_max", CTLTYPE_INT }, \
559 { "re_dup_max", CTLTYPE_INT }, \
560 { "posix2_version", CTLTYPE_INT }, \
561 { "posix2_c_bind", CTLTYPE_INT }, \
562 { "posix2_c_dev", CTLTYPE_INT }, \
563 { "posix2_char_term", CTLTYPE_INT }, \
564 { "posix2_fort_dev", CTLTYPE_INT }, \
565 { "posix2_fort_run", CTLTYPE_INT }, \
566 { "posix2_localedef", CTLTYPE_INT }, \
567 { "posix2_sw_dev", CTLTYPE_INT }, \
568 { "posix2_upe", CTLTYPE_INT }, \
569 { "stream_max", CTLTYPE_INT }, \
570 { "tzname_max", CTLTYPE_INT }, \
571}
572
573#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
574#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
575#define CTL_P1003_1B_MEMLOCK 3 /* boolean */
576#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
577#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
578#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
579#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
580#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
581#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
582#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
583#define CTL_P1003_1B_FSYNC 11 /* boolean */
584#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
585#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
586#define CTL_P1003_1B_TIMERS 14 /* boolean */
587#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
588#define CTL_P1003_1B_AIO_MAX 16 /* int */
589#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
590#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
d6e5508d 591#define CTL_P1003_1B_UNUSED1 19 /* int */
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592#define CTL_P1003_1B_PAGESIZE 20 /* int */
593#define CTL_P1003_1B_RTSIG_MAX 21 /* int */
594#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
595#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
596#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
597#define CTL_P1003_1B_TIMER_MAX 25 /* int */
598
599#define CTL_P1003_1B_MAXID 26
600
601#define CTL_P1003_1B_NAMES { \
602 { 0, 0 }, \
603 { "asynchronous_io", CTLTYPE_INT }, \
604 { "mapped_files", CTLTYPE_INT }, \
605 { "memlock", CTLTYPE_INT }, \
606 { "memlock_range", CTLTYPE_INT }, \
607 { "memory_protection", CTLTYPE_INT }, \
608 { "message_passing", CTLTYPE_INT }, \
609 { "prioritized_io", CTLTYPE_INT }, \
610 { "priority_scheduling", CTLTYPE_INT }, \
611 { "realtime_signals", CTLTYPE_INT }, \
612 { "semaphores", CTLTYPE_INT }, \
613 { "fsync", CTLTYPE_INT }, \
614 { "shared_memory_objects", CTLTYPE_INT }, \
615 { "synchronized_io", CTLTYPE_INT }, \
616 { "timers", CTLTYPE_INT }, \
617 { "aio_listio_max", CTLTYPE_INT }, \
618 { "aio_max", CTLTYPE_INT }, \
619 { "aio_prio_delta_max", CTLTYPE_INT }, \
620 { "delaytimer_max", CTLTYPE_INT }, \
d6e5508d 621 { "unused1", CTLTYPE_INT }, \
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622 { "pagesize", CTLTYPE_INT }, \
623 { "rtsig_max", CTLTYPE_INT }, \
624 { "nsems_max", CTLTYPE_INT }, \
625 { "sem_value_max", CTLTYPE_INT }, \
626 { "sigqueue_max", CTLTYPE_INT }, \
627 { "timer_max", CTLTYPE_INT }, \
628}
629
630#ifdef _KERNEL
631
632/*
633 * Declare some common oids.
634 */
635extern struct sysctl_oid_list sysctl__children;
636SYSCTL_DECL(_kern);
637SYSCTL_DECL(_sysctl);
638SYSCTL_DECL(_vm);
639SYSCTL_DECL(_vfs);
640SYSCTL_DECL(_net);
641SYSCTL_DECL(_debug);
306ab3cb 642SYSCTL_DECL(_debug_sizeof);
48ebe9e2 643SYSCTL_DECL(_dev);
984263bc 644SYSCTL_DECL(_hw);
0010e23a 645SYSCTL_DECL(_hw_bus);
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646SYSCTL_DECL(_machdep);
647SYSCTL_DECL(_user);
648SYSCTL_DECL(_compat);
5f2e2a8b 649SYSCTL_DECL(_lwkt);
43a0f7ae 650SYSCTL_DECL(_security);
984263bc 651
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652/*
653 * Common second-level oids.
654 */
655SYSCTL_DECL(_kern_ipc);
656
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657extern char machine[];
658extern char osrelease[];
659extern char ostype[];
cf75fe93 660extern char kern_ident[];
984263bc 661
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662/* Dynamic oid handling */
663struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
664 struct sysctl_oid_list *parent, int nbr, const char *name,
665 int kind, void *arg1, int arg2,
666 int (*handler) (SYSCTL_HANDLER_ARGS),
667 const char *fmt, const char *descr);
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668void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
669int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del,
670 int recurse);
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671int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
672int sysctl_ctx_init(struct sysctl_ctx_list *clist);
673int sysctl_ctx_free(struct sysctl_ctx_list *clist);
674struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
675 struct sysctl_oid *oidp);
676struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
677 struct sysctl_oid *oidp);
678int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
679 struct sysctl_oid *oidp);
680
41c20dac 681int kernel_sysctl(int *name, u_int namelen, void *old,
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682 size_t *oldlenp, void *new, size_t newlen,
683 size_t *retval);
41c20dac 684int kernel_sysctlbyname(char *name,
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685 void *old, size_t *oldlenp, void *new, size_t newlen,
686 size_t *retval);
41c20dac 687int userland_sysctl(int *name, u_int namelen, void *old,
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688 size_t *oldlenp, int inkernel, void *new, size_t newlen,
689 size_t *retval);
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690int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
691 int *nindx, struct sysctl_req *req);
692
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693int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high);
694
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695struct sbuf;
696struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int,
697 struct sysctl_req *);
698
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699#endif /* _KERNEL */
700
701#if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
702
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703#include <sys/cdefs.h>
704
705__BEGIN_DECLS
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706int sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
707int sysctlbyname(const char *, void *, size_t *, const void *, size_t);
7e6e612a 708int sysctlnametomib (const char *, int *, size_t *);
984263bc 709__END_DECLS
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710
711#endif /* _KERNEL && _KERNEL_VIRTUAL */
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712
713#endif /* !_SYS_SYSCTL_H_ */