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 1.3 1996/09/28 15:43:39 bde 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 SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0, 51 "Sysctl internal magic"); 52 SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0, 53 "High kernel, proc, limits &c"); 54 SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW, 0, 55 "Virtual memory"); 56 SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW, 0, 57 "File system"); 58 SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW, 0, 59 "Network, (see socket.h)"); 60 SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW, 0, 61 "Debugging"); 62 SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW, 0, 63 "hardware"); 64 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0, 65 "machine dependent"); 66 SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0, 67 "user-level"); 68 69 SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD, osrelease, 0, ""); 70 71 SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD, 0, BSD, ""); 72 73 SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD, version, 0, ""); 74 75 SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD, ostype, 0, ""); 76 77 extern int osreldate; 78 SYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD, &osreldate, 0, ""); 79 80 SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RW, &maxproc, 0, ""); 81 82 SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, 83 CTLFLAG_RW, &maxprocperuid, 0, ""); 84 85 SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD, 0, ARG_MAX, ""); 86 87 SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD, 0, _POSIX_VERSION, ""); 88 89 SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD, 0, NGROUPS_MAX, ""); 90 91 SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD, 0, 1, ""); 92 93 #ifdef _POSIX_SAVED_IDS 94 SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 0, 1, ""); 95 #else 96 SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 0, 0, ""); 97 #endif 98 99 char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */ 100 101 SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, 102 CTLFLAG_RW, kernelname, sizeof kernelname, ""); 103 104 SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, 0, 1, ""); 105 106 SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD, 0, BYTE_ORDER, ""); 107 108 SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD, 0, PAGE_SIZE, ""); 109 110 char hostname[MAXHOSTNAMELEN]; 111 112 SYSCTL_STRING(_kern, KERN_HOSTNAME, hostname, CTLFLAG_RW, 113 hostname, sizeof(hostname), ""); 114 115 int securelevel = -1; 116 117 static int 118 sysctl_kern_securelvl SYSCTL_HANDLER_ARGS 119 { 120 int error, level; 121 122 level = securelevel; 123 error = sysctl_handle_int(oidp, &level, 0, req); 124 if (error || !req->newptr) 125 return (error); 126 if (level < securelevel && req->p->p_pid != 1) 127 return (EPERM); 128 securelevel = level; 129 return (error); 130 } 131 132 SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel, CTLTYPE_INT|CTLFLAG_RW, 133 0, 0, sysctl_kern_securelvl, "I", ""); 134 135 char domainname[MAXHOSTNAMELEN]; 136 SYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW, 137 &domainname, sizeof(domainname), ""); 138 139 long hostid; 140 /* Some trouble here, if sizeof (int) != sizeof (long) */ 141 SYSCTL_INT(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, ""); 142 143 /* 144 * This is really cheating. These actually live in the libc, something 145 * which I'm not quite sure is a good idea anyway, but in order for 146 * getnext and friends to actually work, we define dummies here. 147 */ 148 SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD, "", 0, ""); 149 SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD, 0, 0, ""); 150 SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD, 0, 0, ""); 151 SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD, 0, 0, ""); 152 SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD, 0, 0, ""); 153 SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD, 0, 0, ""); 154 SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, ""); 155 SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD, 0, 0, ""); 156 SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD, 0, 0, ""); 157 SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD, 0, 0, ""); 158 SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD, 0, 0, ""); 159 SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD, 0, 0, ""); 160 SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD, 0, 0, ""); 161 SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD, 0, 0, ""); 162 SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD, 0, 0, ""); 163 SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD, 0, 0, ""); 164 SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD, 0, 0, ""); 165 SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD, 0, 0, ""); 166 SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD, 0, 0, ""); 167 SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD, 0, 0, ""); 168