kern_mib.c revision 72376
115103Sphk/*- 215103Sphk * Copyright (c) 1982, 1986, 1989, 1993 315103Sphk * The Regents of the University of California. All rights reserved. 415103Sphk * 515103Sphk * This code is derived from software contributed to Berkeley by 615103Sphk * Mike Karels at Berkeley Software Design, Inc. 715103Sphk * 815103Sphk * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD 915103Sphk * project, to make these variables more userfriendly. 1015103Sphk * 1115103Sphk * Redistribution and use in source and binary forms, with or without 1215103Sphk * modification, are permitted provided that the following conditions 1315103Sphk * are met: 1415103Sphk * 1. Redistributions of source code must retain the above copyright 1515103Sphk * notice, this list of conditions and the following disclaimer. 1615103Sphk * 2. Redistributions in binary form must reproduce the above copyright 1715103Sphk * notice, this list of conditions and the following disclaimer in the 1815103Sphk * documentation and/or other materials provided with the distribution. 1915103Sphk * 3. All advertising materials mentioning features or use of this software 2015103Sphk * must display the following acknowledgement: 2115103Sphk * This product includes software developed by the University of 2215103Sphk * California, Berkeley and its contributors. 2315103Sphk * 4. Neither the name of the University nor the names of its contributors 2415103Sphk * may be used to endorse or promote products derived from this software 2515103Sphk * without specific prior written permission. 2615103Sphk * 2715103Sphk * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2815103Sphk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2915103Sphk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3015103Sphk * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 3115103Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3215103Sphk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3315103Sphk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3415103Sphk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3515103Sphk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3615103Sphk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3715103Sphk * SUCH DAMAGE. 3815103Sphk * 3915103Sphk * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94 4050477Speter * $FreeBSD: head/sys/kern/kern_mib.c 72376 2001-02-12 00:20:08Z jake $ 4115103Sphk */ 4215103Sphk 4315103Sphk#include <sys/param.h> 4415103Sphk#include <sys/kernel.h> 4515103Sphk#include <sys/systm.h> 4615103Sphk#include <sys/sysctl.h> 4715103Sphk#include <sys/proc.h> 4846155Sphk#include <sys/jail.h> 4931990Sgpalmer#include <machine/smp.h> 5028918Skato 5115103SphkSYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0, 5215103Sphk "Sysctl internal magic"); 5315103SphkSYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0, 5415103Sphk "High kernel, proc, limits &c"); 5515103SphkSYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW, 0, 5615103Sphk "Virtual memory"); 5723382SbdeSYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW, 0, 5815103Sphk "File system"); 5915103SphkSYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW, 0, 6015103Sphk "Network, (see socket.h)"); 6115103SphkSYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW, 0, 6215103Sphk "Debugging"); 6348891SphkSYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0, 6448891Sphk "Sizeof various things"); 6515103SphkSYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW, 0, 6615103Sphk "hardware"); 6715103SphkSYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0, 6815103Sphk "machine dependent"); 6915103SphkSYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0, 7015103Sphk "user-level"); 7134925SdufaultSYSCTL_NODE(, CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0, 7234925Sdufault "p1003_1b, (see p1003_1b.h)"); 7334029Sdufault 7450465SmarcelSYSCTL_NODE(, OID_AUTO, compat, CTLFLAG_RW, 0, 7550465Smarcel "Compatibility code"); 7650465Smarcel 7746381SbillfSYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD, 7846381Sbillf osrelease, 0, "Operating system type"); 7915103Sphk 8046381SbillfSYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD, 8146381Sbillf 0, BSD, "Operating system revision"); 8215103Sphk 8346381SbillfSYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD, 8446381Sbillf version, 0, "Kernel version"); 8515103Sphk 8646381SbillfSYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD, 8746381Sbillf ostype, 0, "Operating system type"); 8815103Sphk 8915103Sphkextern int osreldate; 9046381SbillfSYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD, 9146381Sbillf &osreldate, 0, "Operating system release date"); 9215103Sphk 9346381SbillfSYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RD, 9446381Sbillf &maxproc, 0, "Maximum number of processes"); 9515103Sphk 9646381SbillfSYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW, 9746381Sbillf &maxprocperuid, 0, "Maximum processes allowed per userid"); 9815103Sphk 9946381SbillfSYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD, 10046381Sbillf 0, ARG_MAX, "Maximum bytes of argument to execve(2)"); 10115103Sphk 10246381SbillfSYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD, 10346381Sbillf 0, _KPOSIX_VERSION, "Version of POSIX attempting to comply to"); 10415103Sphk 10546381SbillfSYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD, 10646381Sbillf 0, NGROUPS_MAX, "Maximum number of groups a user can belong to"); 10715103Sphk 10846381SbillfSYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD, 10946381Sbillf 0, 1, "Whether job control is available"); 11015103Sphk 11115103Sphk#ifdef _POSIX_SAVED_IDS 11246381SbillfSYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 11346381Sbillf 0, 1, "Whether saved set-group/user ID is available"); 11415103Sphk#else 11546381SbillfSYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, 11646381Sbillf 0, 0, "Whether saved set-group/user ID is available"); 11715103Sphk#endif 11815103Sphk 11915103Sphkchar kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */ 12015103Sphk 12146381SbillfSYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW, 12246381Sbillf kernelname, sizeof kernelname, "Name of kernel file booted"); 12315103Sphk 12431990Sgpalmer#ifdef SMP 12546381SbillfSYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, 12646381Sbillf &mp_ncpus, 0, "Number of active CPUs"); 12731990Sgpalmer#else 12846381SbillfSYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, 12946381Sbillf 0, 1, "Number of active CPUs"); 13031990Sgpalmer#endif 13115103Sphk 13246381SbillfSYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD, 13346381Sbillf 0, BYTE_ORDER, "System byte order"); 13415103Sphk 13546381SbillfSYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD, 13646381Sbillf 0, PAGE_SIZE, "System memory page size"); 13715103Sphk 13828885Skatostatic char machine_arch[] = MACHINE_ARCH; 13928885SkatoSYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD, 14046381Sbillf machine_arch, 0, "System architecture"); 14128885Skato 14215103Sphkchar hostname[MAXHOSTNAMELEN]; 14315103Sphk 14446155Sphkstatic int 14562573Sphksysctl_hostname(SYSCTL_HANDLER_ARGS) 14646155Sphk{ 14746155Sphk int error; 14815103Sphk 14957111Srwatson if (req->p->p_prison) { 15057163Srwatson if (!jail_set_hostname_allowed && req->newptr) 15157111Srwatson return(EPERM); 15246155Sphk error = sysctl_handle_string(oidp, 15346155Sphk req->p->p_prison->pr_host, 15446155Sphk sizeof req->p->p_prison->pr_host, req); 15557111Srwatson } else 15646155Sphk error = sysctl_handle_string(oidp, 15746155Sphk hostname, sizeof hostname, req); 15846155Sphk return (error); 15946155Sphk} 16046155Sphk 16146155SphkSYSCTL_PROC(_kern, KERN_HOSTNAME, hostname, 16246155Sphk CTLTYPE_STRING|CTLFLAG_RW|CTLFLAG_PRISON, 16346381Sbillf 0, 0, sysctl_hostname, "A", "Hostname"); 16446155Sphk 16515103Sphkint securelevel = -1; 16615103Sphk 16715103Sphkstatic int 16862573Sphksysctl_kern_securelvl(SYSCTL_HANDLER_ARGS) 16915103Sphk{ 17015103Sphk int error, level; 17115103Sphk 17215103Sphk level = securelevel; 17315103Sphk error = sysctl_handle_int(oidp, &level, 0, req); 17415103Sphk if (error || !req->newptr) 17515103Sphk return (error); 17626923Sjoerg if (level < securelevel) 17715103Sphk return (EPERM); 17815103Sphk securelevel = level; 17915103Sphk return (error); 18015103Sphk} 18115103Sphk 18261370SrwatsonSYSCTL_PROC(_kern, KERN_SECURELVL, securelevel, CTLTYPE_INT|CTLFLAG_RW, 18361370Srwatson 0, 0, sysctl_kern_securelvl, "I", "Current secure level"); 18461370Srwatson 18515103Sphkchar domainname[MAXHOSTNAMELEN]; 18617281SwollmanSYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW, 18746381Sbillf &domainname, sizeof(domainname), "Name of the current YP/NIS domain"); 18815103Sphk 18915103Sphklong hostid; 19015103Sphk/* Some trouble here, if sizeof (int) != sizeof (long) */ 19146381SbillfSYSCTL_INT(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, "Host ID"); 19215103Sphk 19315103Sphk/* 19415103Sphk * This is really cheating. These actually live in the libc, something 19515103Sphk * which I'm not quite sure is a good idea anyway, but in order for 19615103Sphk * getnext and friends to actually work, we define dummies here. 19715103Sphk */ 19846381SbillfSYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD, 19946381Sbillf "", 0, "PATH that finds all the standard utilities"); 20046381SbillfSYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD, 20146381Sbillf 0, 0, "Max ibase/obase values in bc(1)"); 20246381SbillfSYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD, 20346381Sbillf 0, 0, "Max array size in bc(1)"); 20446381SbillfSYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD, 20546381Sbillf 0, 0, "Max scale value in bc(1)"); 20646381SbillfSYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD, 20746381Sbillf 0, 0, "Max string length in bc(1)"); 20846381SbillfSYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD, 20946381Sbillf 0, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry"); 21018540SbdeSYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, ""); 21146381SbillfSYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD, 21246381Sbillf 0, 0, "Max length (bytes) of a text-processing utility's input line"); 21346381SbillfSYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD, 21446381Sbillf 0, 0, "Maximum number of repeats of a regexp permitted"); 21546381SbillfSYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD, 21646381Sbillf 0, 0, 21746381Sbillf "The version of POSIX 1003.2 with which the system attempts to comply"); 21846381SbillfSYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD, 21946381Sbillf 0, 0, "Whether C development supports the C bindings option"); 22046381SbillfSYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD, 22146381Sbillf 0, 0, "Whether system supports the C development utilities option"); 22246381SbillfSYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD, 22346381Sbillf 0, 0, ""); 22446381SbillfSYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD, 22546381Sbillf 0, 0, "Whether system supports FORTRAN development utilities"); 22646381SbillfSYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD, 22746381Sbillf 0, 0, "Whether system supports FORTRAN runtime utilities"); 22846381SbillfSYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD, 22946381Sbillf 0, 0, "Whether system supports creation of locales"); 23046381SbillfSYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD, 23146381Sbillf 0, 0, "Whether system supports software development utilities"); 23246381SbillfSYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD, 23346381Sbillf 0, 0, "Whether system supports the user portability utilities"); 23446381SbillfSYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD, 23546381Sbillf 0, 0, "Min Maximum number of streams a process may have open at one time"); 23646381SbillfSYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD, 23746381Sbillf 0, 0, "Min Maximum number of types supported for timezone names"); 23848891Sphk 23948891Sphk#include <sys/vnode.h> 24048891SphkSYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD, 24148891Sphk 0, sizeof(struct vnode), "sizeof(struct vnode)"); 24248891Sphk 24348891SphkSYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD, 24448891Sphk 0, sizeof(struct proc), "sizeof(struct proc)"); 24548927Sphk 24649535Sphk#include <sys/conf.h> 24748927SphkSYSCTL_INT(_debug_sizeof, OID_AUTO, specinfo, CTLFLAG_RD, 24848927Sphk 0, sizeof(struct specinfo), "sizeof(struct specinfo)"); 24958926Sphk 25060041Sphk#include <sys/bio.h> 25158926Sphk#include <sys/buf.h> 25258926SphkSYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD, 25358926Sphk 0, sizeof(struct bio), "sizeof(struct bio)"); 25458926SphkSYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD, 25558926Sphk 0, sizeof(struct buf), "sizeof(struct buf)"); 25672376Sjake 25772376Sjake#include <sys/user.h> 25872376SjakeSYSCTL_INT(_debug_sizeof, OID_AUTO, kinfo_proc, CTLFLAG_RD, 25972376Sjake 0, sizeof(struct kinfo_proc), "sizeof(struct kinfo_proc)"); 260