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