kern_mib.c revision 28918 
1/*-
2 * Copyright (c) 1982, 1986, 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 * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
9 * project, to make these variables more userfriendly.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *	This product includes software developed by the University of
22 *	California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *	@(#)kern_sysctl.c	8.4 (Berkeley) 4/14/94
40 * $Id: kern_mib.c,v 1.10 1997/08/29 09:03:02 kato Exp $
41 */
42
43#include <sys/param.h>
44#include <sys/kernel.h>
45#include <sys/systm.h>
46#include <sys/sysctl.h>
47#include <sys/proc.h>
48#include <sys/unistd.h>
49
50#include <machine/cpu.h>
51
52SYSCTL_NODE(, 0,	  sysctl, CTLFLAG_RW, 0,
53	"Sysctl internal magic");
54SYSCTL_NODE(, CTL_KERN,	  kern,   CTLFLAG_RW, 0,
55	"High kernel, proc, limits &c");
56SYSCTL_NODE(, CTL_VM,	  vm,     CTLFLAG_RW, 0,
57	"Virtual memory");
58SYSCTL_NODE(, CTL_VFS,	  vfs,     CTLFLAG_RW, 0,
59	"File system");
60SYSCTL_NODE(, CTL_NET,	  net,    CTLFLAG_RW, 0,
61	"Network, (see socket.h)");
62SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
63	"Debugging");
64SYSCTL_NODE(, CTL_HW,	  hw,     CTLFLAG_RW, 0,
65	"hardware");
66SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
67	"machine dependent");
68SYSCTL_NODE(, CTL_USER,	  user,   CTLFLAG_RW, 0,
69	"user-level");
70
71SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD, osrelease, 0, "");
72
73SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD, 0, BSD, "");
74
75SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD, version, 0, "");
76
77SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD, ostype, 0, "");
78
79extern int osreldate;
80SYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD, &osreldate, 0, "");
81
82SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RW, &maxproc, 0, "");
83
84SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid,
85	CTLFLAG_RW, &maxprocperuid, 0, "");
86
87SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD, 0, ARG_MAX, "");
88
89SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD, 0, _POSIX_VERSION, "");
90
91SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD, 0, NGROUPS_MAX, "");
92
93SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD, 0, 1, "");
94
95#ifdef _POSIX_SAVED_IDS
96SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 0, 1, "");
97#else
98SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 0, 0, "");
99#endif
100
101char kernelname[MAXPATHLEN] = "/kernel";	/* XXX bloat */
102
103SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile,
104	CTLFLAG_RW, kernelname, sizeof kernelname, "");
105
106SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, 0, 1, "");
107
108SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD, 0, BYTE_ORDER, "");
109
110SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD, 0, PAGE_SIZE, "");
111
112static char	machine_arch[] = MACHINE_ARCH;
113SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD,
114			  machine_arch, 0, "");
115
116char hostname[MAXHOSTNAMELEN];
117
118SYSCTL_STRING(_kern, KERN_HOSTNAME, hostname, CTLFLAG_RW,
119	hostname, sizeof(hostname), "");
120
121int securelevel = -1;
122
123static int
124sysctl_kern_securelvl SYSCTL_HANDLER_ARGS
125{
126		int error, level;
127
128		level = securelevel;
129		error = sysctl_handle_int(oidp, &level, 0, req);
130		if (error || !req->newptr)
131			return (error);
132		if (level < securelevel)
133			return (EPERM);
134		securelevel = level;
135		return (error);
136}
137
138SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel, CTLTYPE_INT|CTLFLAG_RW,
139	0, 0, sysctl_kern_securelvl, "I", "");
140
141char domainname[MAXHOSTNAMELEN];
142SYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW,
143	&domainname, sizeof(domainname), "");
144
145long hostid;
146/* Some trouble here, if sizeof (int) != sizeof (long) */
147SYSCTL_INT(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, "");
148
149/*
150 * This is really cheating.  These actually live in the libc, something
151 * which I'm not quite sure is a good idea anyway, but in order for
152 * getnext and friends to actually work, we define dummies here.
153 */
154SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD, "", 0, "");
155SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD, 0, 0, "");
156SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD, 0, 0, "");
157SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD, 0, 0, "");
158SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD, 0, 0, "");
159SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD, 0, 0, "");
160SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, "");
161SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD, 0, 0, "");
162SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD, 0, 0, "");
163SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD, 0, 0, "");
164SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD, 0, 0, "");
165SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD, 0, 0, "");
166SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD, 0, 0, "");
167SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD, 0, 0, "");
168SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD, 0, 0, "");
169SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD, 0, 0, "");
170SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD, 0, 0, "");
171SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD, 0, 0, "");
172SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD, 0, 0, "");
173SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD, 0, 0, "");
174