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sysctl.h

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Last change on this file was 3802, checked in by bird, 12 years ago
sys/sysctl.h: Try convince gcc to not remove the static sysctl data referenced by the set vector.
Property cvs2svn:cvs-rev set to `1.4` Property svn:eol-style set to `native` Property svn:executable set to ``* Property svn:keywords set to `Author Date Id Revision`
File size: 25.2 KB

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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	* 4. Neither the name of the University nor the names of its contributors
17	* may be used to endorse or promote products derived from this software
18	* without specific prior written permission.
19	*
20	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30	* SUCH DAMAGE.
31	*
32	* @(#)sysctl.h 8.1 (Berkeley) 6/2/93
33	* $FreeBSD: src/sys/sys/sysctl.h,v 1.132 2004/07/28 07:08:39 kan Exp $
34	*/
35
36	/** @file
37	* FreeBSD 5.3
38	* @changed bird: Hacked on the kernel stuff and started adding OS/2 tcpip4.1 extensions.
39	*/
40
41	#ifndef _SYS_SYSCTL_H_
42	#define _SYS_SYSCTL_H_
43
44	#include <sys/queue.h>
45
46	struct thread;
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 24 /* 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(8) in manipulating the subsystem.
64	*/
65	struct 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	#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */
90	#define CTLMASK_SECURE 0x00F00000 /* Secure level */
91	#define CTLFLAG_TUN 0x00080000 /* Tunable variable */
92	#define CTLFLAG_RDTUN (CTLFLAG_RD\|CTLFLAG_TUN)
93
94	/*
95	* Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1.
96	*
97	* Secure when the securelevel is raised to at least N.
98	*/
99	#define CTLSHIFT_SECURE 20
100	#define CTLFLAG_SECURE1 (CTLFLAG_SECURE \| (0 << CTLSHIFT_SECURE))
101	#define CTLFLAG_SECURE2 (CTLFLAG_SECURE \| (1 << CTLSHIFT_SECURE))
102	#define CTLFLAG_SECURE3 (CTLFLAG_SECURE \| (2 << CTLSHIFT_SECURE))
103
104	/*
105	* USE THIS instead of a hardwired number from the categories below
106	* to get dynamically assigned sysctl entries using the linker-set
107	* technology. This is the way nearly all new sysctl variables should
108	* be implemented.
109	* e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
110	*/
111	#define OID_AUTO (-1)
112
113	/*
114	* The starting number for dynamically-assigned entries. WARNING!
115	* ALL static sysctl entries should have numbers LESS than this!
116	*/
117	#define CTL_AUTO_START 0x100
118
119	#ifdef _KERNEL
120	#define SYSCTL_HANDLER_ARGS struct sysctl_oid oidp, void arg1, int arg2, \
121	struct sysctl_req *req
122
123	/* definitions for sysctl_req 'lock' member */
124	#define REQ_UNLOCKED 0 /* not locked and not wired */
125	#define REQ_LOCKED 1 /* locked and not wired */
126	#define REQ_WIRED 2 /* locked and wired */
127
128	/*
129	* This describes the access space for a sysctl request. This is needed
130	* so that we can use the interface from the kernel or from user-space.
131	*/
132	struct sysctl_req {
133	struct thread td; / used for access checking */
134	int lock; /* locking/wiring state */
135	void *oldptr;
136	size_t oldlen;
137	size_t oldidx;
138	int (oldfunc)(struct sysctl_req , const void *, size_t);
139	void *newptr;
140	size_t newlen;
141	size_t newidx;
142	int (newfunc)(struct sysctl_req , void *, size_t);
143	size_t validlen;
144	};
145
146	SLIST_HEAD(sysctl_oid_list, sysctl_oid);
147
148	/*
149	* This describes one "oid" in the MIB tree. Potentially more nodes can
150	* be hidden behind it, expanded by the handler.
151	*/
152	struct sysctl_oid {
153	struct sysctl_oid_list *oid_parent;
154	SLIST_ENTRY(sysctl_oid) oid_link;
155	int oid_number;
156	u_int oid_kind;
157	void *oid_arg1;
158	int oid_arg2;
159	const char *oid_name;
160	int (*oid_handler)(SYSCTL_HANDLER_ARGS);
161	const char *oid_fmt;
162	int oid_refcnt;
163	const char *descr;
164	};
165
166	#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
167	#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
168
169	#ifdef __INNOTEK_LIBC__
170	#define sysctl_handle_int __libc_sysctl_handle_int
171	#define sysctl_handle_long __libc_sysctl_handle_long
172	#define sysctl_handle_intptr __libc_sysctl_handle_intptr
173	#define sysctl_handle_string __libc_sysctl_handle_string
174	#define sysctl_handle_opaque __libc_sysctl_handle_opaque
175	#endif
176
177	int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
178	int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
179	int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
180	int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
181	int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
182
183	#if 0 /* bird */
184	/*
185	* These functions are used to add/remove an oid from the mib.
186	*/
187	void sysctl_register_oid(struct sysctl_oid *oidp);
188	void sysctl_unregister_oid(struct sysctl_oid *oidp);
189	#endif /* bird */
190
191	/* Declare a static oid to allow child oids to be added to it. */
192	#define SYSCTL_DECL(name) \
193	extern struct sysctl_oid_list __libc_sysctl_##name##_children
194
195	/* Hide these in macros */
196	#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
197	(oid_ptr)->oid_arg1
198	#define SYSCTL_CHILDREN_SET(oid_ptr, val) \
199	(oid_ptr)->oid_arg1 = (val);
200	#define SYSCTL_STATIC_CHILDREN(oid_name) \
201	(&__libc_sysctl_##oid_name##_children)
202
203	/* === Structs and macros related to context handling === */
204
205	/* All dynamically created sysctls can be tracked in a context list. */
206	struct sysctl_ctx_entry {
207	struct sysctl_oid *entry;
208	TAILQ_ENTRY(sysctl_ctx_entry) link;
209	};
210
211	TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
212
213	#define SYSCTL_NODE_CHILDREN(parent, name) \
214	__libc_sysctl_##parent##_##name##_children
215
216	#undef DATA_SET
217	#define DATA_SET(set, data) __asm__ (".stabs \"___libc_" #set "__\", 25, 0, 0, _" #data)
218
219	#if __GNUC_PREREQ__(4,2)
220	# define SYSCTL_DATA_USED() __attribute__((__used__))
221	#else
222	# define SYSCTL_DATA_USED()
223	#endif
224
225	/* This constructs a "raw" MIB oid. */
226	#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
227	static struct sysctl_oid SYSCTL_DATA_USED() __libc_sysctl__##parent##_##name = { \
228	&__libc_sysctl_##parent##_children, { &__libc_sysctl__##parent##_##name }, \
229	nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \
230	DATA_SET(sysctl_set, __libc_sysctl__##parent##_##name)
231
232
233	#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
234	sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr)
235
236	/* This constructs a node from which other oids can hang. */
237	#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
238	struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name) = {0}; \
239	SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE\|(access), \
240	(void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \
241	"N", descr)
242
243	#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
244	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE\|(access), \
245	0, 0, handler, "N", descr)
246
247	/* Oid for a string. len can be 0 to indicate '\0' termination. */
248	#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
249	SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING\|(access), \
250	arg, len, sysctl_handle_string, "A", descr)
251
252	#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
253	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING\|(access), \
254	arg, len, sysctl_handle_string, "A", descr)
255
256	/* Oid for an int. If ptr is NULL, val is returned. */
257	#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
258	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT\|(access), \
259	ptr, val, sysctl_handle_int, "I", descr)
260
261	#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
262	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT\|(access), \
263	ptr, val, sysctl_handle_int, "I", descr)
264
265	/* Oid for an unsigned int. If ptr is NULL, val is returned. */
266	#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
267	SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT\|(access), \
268	ptr, val, sysctl_handle_int, "IU", descr)
269
270	#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
271	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT\|(access), \
272	ptr, val, sysctl_handle_int, "IU", descr)
273
274	/* Oid for a long. The pointer must be non NULL. */
275	#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
276	SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG\|(access), \
277	ptr, val, sysctl_handle_long, "L", descr)
278
279	#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
280	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG\|(access), \
281	ptr, 0, sysctl_handle_long, "L", descr)
282
283	/* Oid for an unsigned long. The pointer must be non NULL. */
284	#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
285	SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG\|(access), \
286	ptr, val, sysctl_handle_long, "LU", descr)
287
288	#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
289	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG\|(access), \
290	ptr, 0, sysctl_handle_long, "LU", descr)
291
292	/* Oid for an opaque object. Specified by a pointer and a length. */
293	#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
294	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE\|(access), \
295	ptr, len, sysctl_handle_opaque, fmt, descr)
296
297	#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\
298	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE\|(access), \
299	ptr, len, sysctl_handle_opaque, fmt, descr)
300
301	/* Oid for a struct. Specified by a pointer and a type. */
302	#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
303	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE\|(access), \
304	ptr, sizeof(struct type), sysctl_handle_opaque, \
305	"S," #type, descr)
306
307	#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
308	sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE\|(access), \
309	ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
310
311	/* Oid for a procedure. Specified by a pointer and an arg. */
312	#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
313	SYSCTL_OID(parent, nbr, name, (access), \
314	ptr, arg, handler, fmt, descr)
315
316	#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
317	sysctl_add_oid(ctx, parent, nbr, name, (access), \
318	ptr, arg, handler, fmt, descr)
319
320	#endif /* _KERNEL */
321
322	/*
323	* Top-level identifiers
324	*/
325	#define CTL_UNSPEC 0 /* unused */
326	#define CTL_KERN 1 /* "high kernel": proc, limits */
327	#define CTL_VM 2 /* virtual memory */
328	#define CTL_VFS 3 /* filesystem, mount type is next */
329	#define CTL_NET 4 /* network, see socket.h */
330	#define CTL_DEBUG 5 /* debugging parameters */
331	#define CTL_HW 6 /* generic cpu/io */
332	#define CTL_MACHDEP 7 /* machine dependent */
333	#define CTL_USER 8 /* user-level */
334	#define CTL_OS2 9 /* tcpip v4.1 stuff, CTL_P1003_1B was moved because of this. */
335	#define CTL_P1003_1B 10 /* POSIX 1003.1B */
336	#define CTL_MAXID 11 /* number of valid top-level ids */
337
338	#define CTL_NAMES { \
339	{ 0, 0 }, \
340	{ "kern", CTLTYPE_NODE }, \
341	{ "vm", CTLTYPE_NODE }, \
342	{ "vfs", CTLTYPE_NODE }, \
343	{ "net", CTLTYPE_NODE }, \
344	{ "debug", CTLTYPE_NODE }, \
345	{ "hw", CTLTYPE_NODE }, \
346	{ "machdep", CTLTYPE_NODE }, \
347	{ "user", CTLTYPE_NODE }, \
348	{ "os2", CTLTYPE_NODE }, \
349	{ "p1003_1b", CTLTYPE_NODE }, \
350	}
351
352	/*
353	* CTL_KERN identifiers
354	*/
355	#define KERN_OSTYPE 1 /* string: system version */
356	#define KERN_OSRELEASE 2 /* string: system release */
357	#define KERN_OSREV 3 /* int: system revision */
358	#define KERN_VERSION 4 /* string: compile time info */
359	#define KERN_MAXVNODES 5 /* int: max vnodes */
360	#define KERN_MAXPROC 6 /* int: max processes */
361	#define KERN_MAXFILES 7 /* int: max open files */
362	#define KERN_ARGMAX 8 /* int: max arguments to exec */
363	#define KERN_SECURELVL 9 /* int: system security level */
364	#define KERN_HOSTNAME 10 /* string: hostname */
365	#define KERN_HOSTID 11 /* int: host identifier */
366	#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
367	#define KERN_VNODE 13 /* struct: vnode structures */
368	#define KERN_PROC 14 /* struct: process entries */
369	#define KERN_FILE 15 /* struct: file entries */
370	#define KERN_PROF 16 /* node: kernel profiling info */
371	#define KERN_POSIX1 17 /* int: POSIX.1 version */
372	#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
373	#define KERN_JOB_CONTROL 19 /* int: is job control available */
374	#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
375	#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
376	#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
377	#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
378	#define KERN_OSRELDATE 24 /* int: kernel release date */
379	#define KERN_NTP_PLL 25 /* node: NTP PLL control */
380	#define KERN_BOOTFILE 26 /* string: name of booted kernel */
381	#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
382	#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
383	#define KERN_DUMPDEV 29 /* struct cdev : device to dump on /
384	#define KERN_IPC 30 /* node: anything related to IPC */
385	#define KERN_DUMMY 31 /* unused */
386	#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
387	#define KERN_USRSTACK 33 /* int: address of USRSTACK */
388	#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
389	#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
390	#define KERN_MAXID 36 /* number of valid kern ids */
391
392	#define CTL_KERN_NAMES { \
393	{ 0, 0 }, \
394	{ "ostype", CTLTYPE_STRING }, \
395	{ "osrelease", CTLTYPE_STRING }, \
396	{ "osrevision", CTLTYPE_INT }, \
397	{ "version", CTLTYPE_STRING }, \
398	{ "maxvnodes", CTLTYPE_INT }, \
399	{ "maxproc", CTLTYPE_INT }, \
400	{ "maxfiles", CTLTYPE_INT }, \
401	{ "argmax", CTLTYPE_INT }, \
402	{ "securelevel", CTLTYPE_INT }, \
403	{ "hostname", CTLTYPE_STRING }, \
404	{ "hostid", CTLTYPE_UINT }, \
405	{ "clockrate", CTLTYPE_STRUCT }, \
406	{ "vnode", CTLTYPE_STRUCT }, \
407	{ "proc", CTLTYPE_STRUCT }, \
408	{ "file", CTLTYPE_STRUCT }, \
409	{ "profiling", CTLTYPE_NODE }, \
410	{ "posix1version", CTLTYPE_INT }, \
411	{ "ngroups", CTLTYPE_INT }, \
412	{ "job_control", CTLTYPE_INT }, \
413	{ "saved_ids", CTLTYPE_INT }, \
414	{ "boottime", CTLTYPE_STRUCT }, \
415	{ "nisdomainname", CTLTYPE_STRING }, \
416	{ "update", CTLTYPE_INT }, \
417	{ "osreldate", CTLTYPE_INT }, \
418	{ "ntp_pll", CTLTYPE_NODE }, \
419	{ "bootfile", CTLTYPE_STRING }, \
420	{ "maxfilesperproc", CTLTYPE_INT }, \
421	{ "maxprocperuid", CTLTYPE_INT }, \
422	{ "ipc", CTLTYPE_NODE }, \
423	{ "dummy", CTLTYPE_INT }, \
424	{ "ps_strings", CTLTYPE_INT }, \
425	{ "usrstack", CTLTYPE_INT }, \
426	{ "logsigexit", CTLTYPE_INT }, \
427	{ "iov_max", CTLTYPE_INT }, \
428	}
429
430	/*
431	* CTL_VFS identifiers
432	*/
433	#define CTL_VFS_NAMES { \
434	{ "vfsconf", CTLTYPE_STRUCT }, \
435	}
436
437	/*
438	* KERN_PROC subtypes
439	*/
440	#define KERN_PROC_ALL 0 /* everything */
441	#define KERN_PROC_PID 1 /* by process id */
442	#define KERN_PROC_PGRP 2 /* by process group id */
443	#define KERN_PROC_SESSION 3 /* by session of pid */
444	#define KERN_PROC_TTY 4 /* by controlling tty */
445	#define KERN_PROC_UID 5 /* by effective uid */
446	#define KERN_PROC_RUID 6 /* by real uid */
447	#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
448	#define KERN_PROC_PROC 8 /* only return procs */
449	#define KERN_PROC_SV_NAME 9 /* get syscall vector name */
450	#define KERN_PROC_RGID 10 /* by real group id */
451	#define KERN_PROC_GID 11 /* by effective group id */
452	#define KERN_PROC_INC_THREAD 0x10 /*
453	* modifier for pid, pgrp, tty,
454	* uid, ruid, gid, rgid and proc
455	*/
456
457	/*
458	* KERN_IPC identifiers
459	*/
460	#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
461	#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
462	#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
463	#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
464	#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
465	#define KIPC_MAX_HDR 6 /* int: max total length of headers */
466	#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
467
468	/*
469	* CTL_HW identifiers
470	*/
471	#define HW_MACHINE 1 /* string: machine class */
472	#define HW_MODEL 2 /* string: specific machine model */
473	#define HW_NCPU 3 /* int: number of cpus */
474	#define HW_BYTEORDER 4 /* int: machine byte order */
475	#define HW_PHYSMEM 5 /* int: total memory */
476	#define HW_USERMEM 6 /* int: non-kernel memory */
477	#define HW_PAGESIZE 7 /* int: software page size */
478	#define HW_DISKNAMES 8 /* strings: disk drive names */
479	#define HW_DISKSTATS 9 /* struct: diskstats[] */
480	#define HW_FLOATINGPT 10 /* int: has HW floating point? */
481	#define HW_MACHINE_ARCH 11 /* string: machine architecture */
482	#define HW_MAXID 12 /* number of valid hw ids */
483
484	#define CTL_HW_NAMES { \
485	{ 0, 0 }, \
486	{ "machine", CTLTYPE_STRING }, \
487	{ "model", CTLTYPE_STRING }, \
488	{ "ncpu", CTLTYPE_INT }, \
489	{ "byteorder", CTLTYPE_INT }, \
490	{ "physmem", CTLTYPE_ULONG }, \
491	{ "usermem", CTLTYPE_ULONG }, \
492	{ "pagesize", CTLTYPE_INT }, \
493	{ "disknames", CTLTYPE_STRUCT }, \
494	{ "diskstats", CTLTYPE_STRUCT }, \
495	{ "floatingpoint", CTLTYPE_INT }, \
496	}
497
498	/*
499	* CTL_USER definitions
500	*/
501	#define USER_CS_PATH 1 /* string: _CS_PATH */
502	#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
503	#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
504	#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
505	#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
506	#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
507	#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
508	#define USER_LINE_MAX 8 /* int: LINE_MAX */
509	#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
510	#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
511	#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
512	#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
513	#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
514	#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
515	#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
516	#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
517	#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
518	#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
519	#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
520	#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
521	#define USER_MAXID 21 /* number of valid user ids */
522
523	#define CTL_USER_NAMES { \
524	{ 0, 0 }, \
525	{ "cs_path", CTLTYPE_STRING }, \
526	{ "bc_base_max", CTLTYPE_INT }, \
527	{ "bc_dim_max", CTLTYPE_INT }, \
528	{ "bc_scale_max", CTLTYPE_INT }, \
529	{ "bc_string_max", CTLTYPE_INT }, \
530	{ "coll_weights_max", CTLTYPE_INT }, \
531	{ "expr_nest_max", CTLTYPE_INT }, \
532	{ "line_max", CTLTYPE_INT }, \
533	{ "re_dup_max", CTLTYPE_INT }, \
534	{ "posix2_version", CTLTYPE_INT }, \
535	{ "posix2_c_bind", CTLTYPE_INT }, \
536	{ "posix2_c_dev", CTLTYPE_INT }, \
537	{ "posix2_char_term", CTLTYPE_INT }, \
538	{ "posix2_fort_dev", CTLTYPE_INT }, \
539	{ "posix2_fort_run", CTLTYPE_INT }, \
540	{ "posix2_localedef", CTLTYPE_INT }, \
541	{ "posix2_sw_dev", CTLTYPE_INT }, \
542	{ "posix2_upe", CTLTYPE_INT }, \
543	{ "stream_max", CTLTYPE_INT }, \
544	{ "tzname_max", CTLTYPE_INT }, \
545	}
546
547	#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
548	#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
549	#define CTL_P1003_1B_MEMLOCK 3 /* boolean */
550	#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
551	#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
552	#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
553	#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
554	#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
555	#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
556	#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
557	#define CTL_P1003_1B_FSYNC 11 /* boolean */
558	#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
559	#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
560	#define CTL_P1003_1B_TIMERS 14 /* boolean */
561	#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
562	#define CTL_P1003_1B_AIO_MAX 16 /* int */
563	#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
564	#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
565	#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
566	#define CTL_P1003_1B_PAGESIZE 20 /* int */
567	#define CTL_P1003_1B_RTSIG_MAX 21 /* int */
568	#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
569	#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
570	#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
571	#define CTL_P1003_1B_TIMER_MAX 25 /* int */
572
573	#define CTL_P1003_1B_MAXID 26
574
575	#define CTL_P1003_1B_NAMES { \
576	{ 0, 0 }, \
577	{ "asynchronous_io", CTLTYPE_INT }, \
578	{ "mapped_files", CTLTYPE_INT }, \
579	{ "memlock", CTLTYPE_INT }, \
580	{ "memlock_range", CTLTYPE_INT }, \
581	{ "memory_protection", CTLTYPE_INT }, \
582	{ "message_passing", CTLTYPE_INT }, \
583	{ "prioritized_io", CTLTYPE_INT }, \
584	{ "priority_scheduling", CTLTYPE_INT }, \
585	{ "realtime_signals", CTLTYPE_INT }, \
586	{ "semaphores", CTLTYPE_INT }, \
587	{ "fsync", CTLTYPE_INT }, \
588	{ "shared_memory_objects", CTLTYPE_INT }, \
589	{ "synchronized_io", CTLTYPE_INT }, \
590	{ "timers", CTLTYPE_INT }, \
591	{ "aio_listio_max", CTLTYPE_INT }, \
592	{ "aio_max", CTLTYPE_INT }, \
593	{ "aio_prio_delta_max", CTLTYPE_INT }, \
594	{ "delaytimer_max", CTLTYPE_INT }, \
595	{ "mq_open_max", CTLTYPE_INT }, \
596	{ "pagesize", CTLTYPE_INT }, \
597	{ "rtsig_max", CTLTYPE_INT }, \
598	{ "nsems_max", CTLTYPE_INT }, \
599	{ "sem_value_max", CTLTYPE_INT }, \
600	{ "sigqueue_max", CTLTYPE_INT }, \
601	{ "timer_max", CTLTYPE_INT }, \
602	}
603
604	#ifdef _KERNEL
605
606	/*
607	* Declare some common oids.
608	*/
609	#define sysctl__children __libc_sysctl__children
610	extern struct sysctl_oid_list sysctl__children;
611	SYSCTL_DECL(_kern);
612	SYSCTL_DECL(_sysctl);
613	SYSCTL_DECL(_vm);
614	SYSCTL_DECL(_vfs);
615	SYSCTL_DECL(_net);
616	SYSCTL_DECL(_debug);
617	SYSCTL_DECL(_debug_sizeof);
618	SYSCTL_DECL(_hw);
619	SYSCTL_DECL(_machdep);
620	SYSCTL_DECL(_user);
621	SYSCTL_DECL(_compat);
622
623	#if 0 /* bird - not used */
624	extern char machine[];
625	extern char osrelease[];
626	extern char ostype[];
627	extern char kern_ident[];
628
629	/* Dynamic oid handling */
630	struct sysctl_oid sysctl_add_oid(struct sysctl_ctx_list clist,
631	struct sysctl_oid_list parent, int nbr, const char name,
632	int kind, void *arg1, int arg2,
633	int (*handler) (SYSCTL_HANDLER_ARGS),
634	const char fmt, const char descr);
635	int sysctl_move_oid(struct sysctl_oid *oidp,
636	struct sysctl_oid_list *parent);
637	int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
638	int sysctl_ctx_init(struct sysctl_ctx_list *clist);
639	int sysctl_ctx_free(struct sysctl_ctx_list *clist);
640	struct sysctl_ctx_entry sysctl_ctx_entry_add(struct sysctl_ctx_list clist,
641	struct sysctl_oid *oidp);
642	struct sysctl_ctx_entry sysctl_ctx_entry_find(struct sysctl_ctx_list clist,
643	struct sysctl_oid *oidp);
644	int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
645	struct sysctl_oid *oidp);
646
647	int kernel_sysctl(struct thread td, int name, u_int namelen, void *old,
648	size_t oldlenp, void new, size_t newlen,
649	size_t *retval);
650	int kernel_sysctlbyname(struct thread td, char name,
651	void old, size_t oldlenp, void *new, size_t newlen,
652	size_t *retval);
653	int userland_sysctl(struct thread td, int name, u_int namelen, void *old,
654	size_t oldlenp, int inkernel, void new, size_t newlen,
655	size_t *retval);
656	int sysctl_find_oid(int name, u_int namelen, struct sysctl_oid *noid,
657	int nindx, struct sysctl_req req);
658	int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
659	#endif /* bird - not used */
660
661	#else /* !_KERNEL */
662	#include <sys/cdefs.h>
663
664	__BEGIN_DECLS
665	int sysctl(int , u_int, void , size_t , void , size_t);
666	int sysctlbyname(const char , void , size_t , void , size_t);
667	int sysctlnametomib(const char , int , size_t *);
668	__END_DECLS
669	#endif /* _KERNEL */
670
671	#endif /* !_SYS_SYSCTL_H_ */

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source: branches/libc-0.6/src/emx/include/sys/sysctl.h

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