604 lines
20 KiB
C
604 lines
20 KiB
C
/*-
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Mike Karels at Berkeley Software Design, Inc.
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*
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* Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
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* project, to make these variables more userfriendly.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_compat.h"
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#include "opt_posix.h"
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#include "opt_config.h"
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#include <sys/param.h>
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/random.h>
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#include <sys/sbuf.h>
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#include <sys/smp.h>
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#include <sys/sx.h>
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#include <sys/vmmeter.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/unistd.h>
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SYSCTL_ROOT_NODE(0, sysctl, CTLFLAG_RW, 0,
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"Sysctl internal magic");
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SYSCTL_ROOT_NODE(CTL_KERN, kern, CTLFLAG_RW|CTLFLAG_CAPRD, 0,
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"High kernel, proc, limits &c");
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SYSCTL_ROOT_NODE(CTL_VM, vm, CTLFLAG_RW, 0,
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"Virtual memory");
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SYSCTL_ROOT_NODE(CTL_VFS, vfs, CTLFLAG_RW, 0,
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"File system");
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SYSCTL_ROOT_NODE(CTL_NET, net, CTLFLAG_RW, 0,
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"Network, (see socket.h)");
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SYSCTL_ROOT_NODE(CTL_DEBUG, debug, CTLFLAG_RW, 0,
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"Debugging");
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SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0,
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"Sizeof various things");
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SYSCTL_ROOT_NODE(CTL_HW, hw, CTLFLAG_RW, 0,
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"hardware");
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SYSCTL_ROOT_NODE(CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
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"machine dependent");
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SYSCTL_ROOT_NODE(CTL_USER, user, CTLFLAG_RW, 0,
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"user-level");
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SYSCTL_ROOT_NODE(CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
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"p1003_1b, (see p1003_1b.h)");
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SYSCTL_ROOT_NODE(OID_AUTO, compat, CTLFLAG_RW, 0,
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"Compatibility code");
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SYSCTL_ROOT_NODE(OID_AUTO, security, CTLFLAG_RW, 0,
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"Security");
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#ifdef REGRESSION
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SYSCTL_ROOT_NODE(OID_AUTO, regression, CTLFLAG_RW, 0,
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"Regression test MIB");
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#endif
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#ifdef EXT_RESOURCES
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SYSCTL_ROOT_NODE(OID_AUTO, clock, CTLFLAG_RW, 0,
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"Clocks");
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#endif
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SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD|CTLFLAG_MPSAFE,
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kern_ident, 0, "Kernel identifier");
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SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, BSD, "Operating system revision");
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SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD|CTLFLAG_MPSAFE,
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version, 0, "Kernel version");
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SYSCTL_STRING(_kern, OID_AUTO, compiler_version, CTLFLAG_RD|CTLFLAG_MPSAFE,
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compiler_version, 0, "Version of compiler used to compile kernel");
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SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD|CTLFLAG_MPSAFE|
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CTLFLAG_CAPRD, ostype, 0, "Operating system type");
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SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
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&maxproc, 0, "Maximum number of processes");
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SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW,
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&maxprocperuid, 0, "Maximum processes allowed per userid");
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SYSCTL_INT(_kern, OID_AUTO, maxusers, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
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&maxusers, 0, "Hint for kernel tuning");
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SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, ARG_MAX, "Maximum bytes of argument to execve(2)");
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SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, _POSIX_VERSION, "Version of POSIX attempting to comply to");
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SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RDTUN |
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CTLFLAG_NOFETCH | CTLFLAG_CAPRD, &ngroups_max, 0,
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"Maximum number of supplemental groups a user can belong to");
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SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, 1, "Whether job control is available");
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#ifdef _POSIX_SAVED_IDS
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SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, 1, "Whether saved set-group/user ID is available");
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#else
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SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, 0, "Whether saved set-group/user ID is available");
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#endif
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char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */
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SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW | CTLFLAG_MPSAFE,
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kernelname, sizeof kernelname, "Name of kernel file booted");
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SYSCTL_INT(_kern, KERN_MAXPHYS, maxphys, CTLFLAG_RD | CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, MAXPHYS, "Maximum block I/O access size");
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SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD|CTLFLAG_CAPRD,
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&mp_ncpus, 0, "Number of active CPUs");
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SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, BYTE_ORDER, "System byte order");
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SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD|CTLFLAG_CAPRD,
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SYSCTL_NULL_INT_PTR, PAGE_SIZE, "System memory page size");
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static int
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sysctl_kern_arnd(SYSCTL_HANDLER_ARGS)
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{
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char buf[256];
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size_t len;
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/*-
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* This is one of the very few legitimate uses of read_random(9).
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* Use of arc4random(9) is not recommended as that will ignore
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* an unsafe (i.e. unseeded) random(4).
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*
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* If random(4) is not seeded, then this returns 0, so the
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* sysctl will return a zero-length buffer.
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*/
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len = read_random(buf, MIN(req->oldlen, sizeof(buf)));
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return (SYSCTL_OUT(req, buf, len));
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}
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SYSCTL_PROC(_kern, KERN_ARND, arandom,
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CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_CAPRD, NULL, 0,
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sysctl_kern_arnd, "", "arc4rand");
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static int
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sysctl_hw_physmem(SYSCTL_HANDLER_ARGS)
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{
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u_long val;
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val = ctob(physmem);
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return (sysctl_handle_long(oidp, &val, 0, req));
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}
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SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG | CTLFLAG_RD,
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0, 0, sysctl_hw_physmem, "LU", "");
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static int
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sysctl_hw_realmem(SYSCTL_HANDLER_ARGS)
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{
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u_long val;
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val = ctob(realmem);
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return (sysctl_handle_long(oidp, &val, 0, req));
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}
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SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG | CTLFLAG_RD,
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0, 0, sysctl_hw_realmem, "LU", "");
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static int
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sysctl_hw_usermem(SYSCTL_HANDLER_ARGS)
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{
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u_long val;
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val = ctob(physmem - vm_cnt.v_wire_count);
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return (sysctl_handle_long(oidp, &val, 0, req));
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}
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SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG | CTLFLAG_RD,
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0, 0, sysctl_hw_usermem, "LU", "");
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SYSCTL_LONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0, "");
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u_long pagesizes[MAXPAGESIZES] = { PAGE_SIZE };
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static int
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sysctl_hw_pagesizes(SYSCTL_HANDLER_ARGS)
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{
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int error;
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#ifdef SCTL_MASK32
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int i;
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uint32_t pagesizes32[MAXPAGESIZES];
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if (req->flags & SCTL_MASK32) {
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/*
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* Recreate the "pagesizes" array with 32-bit elements. Truncate
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* any page size greater than UINT32_MAX to zero.
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*/
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for (i = 0; i < MAXPAGESIZES; i++)
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pagesizes32[i] = (uint32_t)pagesizes[i];
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error = SYSCTL_OUT(req, pagesizes32, sizeof(pagesizes32));
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} else
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#endif
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error = SYSCTL_OUT(req, pagesizes, sizeof(pagesizes));
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return (error);
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}
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SYSCTL_PROC(_hw, OID_AUTO, pagesizes, CTLTYPE_ULONG | CTLFLAG_RD,
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NULL, 0, sysctl_hw_pagesizes, "LU", "Supported page sizes");
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#ifdef SCTL_MASK32
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int adaptive_machine_arch = 1;
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SYSCTL_INT(_debug, OID_AUTO, adaptive_machine_arch, CTLFLAG_RW,
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&adaptive_machine_arch, 1,
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"Adapt reported machine architecture to the ABI of the binary");
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#endif
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static int
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sysctl_hw_machine_arch(SYSCTL_HANDLER_ARGS)
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{
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int error;
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static const char machine_arch[] = MACHINE_ARCH;
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#ifdef SCTL_MASK32
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static const char machine_arch32[] = MACHINE_ARCH32;
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if ((req->flags & SCTL_MASK32) != 0 && adaptive_machine_arch)
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error = SYSCTL_OUT(req, machine_arch32, sizeof(machine_arch32));
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else
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#endif
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error = SYSCTL_OUT(req, machine_arch, sizeof(machine_arch));
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return (error);
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}
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SYSCTL_PROC(_hw, HW_MACHINE_ARCH, machine_arch, CTLTYPE_STRING | CTLFLAG_RD |
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CTLFLAG_MPSAFE, NULL, 0, sysctl_hw_machine_arch, "A",
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"System architecture");
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SYSCTL_STRING(_kern, OID_AUTO, supported_archs, CTLFLAG_RD | CTLFLAG_MPSAFE,
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#ifdef COMPAT_FREEBSD32
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MACHINE_ARCH " " MACHINE_ARCH32, 0, "Supported architectures for binaries");
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#else
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MACHINE_ARCH, 0, "Supported architectures for binaries");
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#endif
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static int
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sysctl_hostname(SYSCTL_HANDLER_ARGS)
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{
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struct prison *pr, *cpr;
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size_t pr_offset;
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char tmpname[MAXHOSTNAMELEN];
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int descend, error, len;
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/*
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* This function can set: hostname domainname hostuuid.
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* Keep that in mind when comments say "hostname".
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*/
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pr_offset = (size_t)arg1;
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len = arg2;
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KASSERT(len <= sizeof(tmpname),
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("length %d too long for %s", len, __func__));
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pr = req->td->td_ucred->cr_prison;
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if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr)
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return (EPERM);
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/*
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* Make a local copy of hostname to get/set so we don't have to hold
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* the jail mutex during the sysctl copyin/copyout activities.
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*/
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mtx_lock(&pr->pr_mtx);
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bcopy((char *)pr + pr_offset, tmpname, len);
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mtx_unlock(&pr->pr_mtx);
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error = sysctl_handle_string(oidp, tmpname, len, req);
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if (req->newptr != NULL && error == 0) {
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/*
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* Copy the locally set hostname to all jails that share
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* this host info.
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*/
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sx_slock(&allprison_lock);
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while (!(pr->pr_flags & PR_HOST))
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pr = pr->pr_parent;
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mtx_lock(&pr->pr_mtx);
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bcopy(tmpname, (char *)pr + pr_offset, len);
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FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend)
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if (cpr->pr_flags & PR_HOST)
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descend = 0;
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else
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bcopy(tmpname, (char *)cpr + pr_offset, len);
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mtx_unlock(&pr->pr_mtx);
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sx_sunlock(&allprison_lock);
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}
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return (error);
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}
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SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
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CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
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(void *)(offsetof(struct prison, pr_hostname)), MAXHOSTNAMELEN,
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sysctl_hostname, "A", "Hostname");
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SYSCTL_PROC(_kern, KERN_NISDOMAINNAME, domainname,
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CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
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(void *)(offsetof(struct prison, pr_domainname)), MAXHOSTNAMELEN,
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sysctl_hostname, "A", "Name of the current YP/NIS domain");
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SYSCTL_PROC(_kern, KERN_HOSTUUID, hostuuid,
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CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
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(void *)(offsetof(struct prison, pr_hostuuid)), HOSTUUIDLEN,
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sysctl_hostname, "A", "Host UUID");
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static int regression_securelevel_nonmonotonic = 0;
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#ifdef REGRESSION
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SYSCTL_INT(_regression, OID_AUTO, securelevel_nonmonotonic, CTLFLAG_RW,
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®ression_securelevel_nonmonotonic, 0, "securelevel may be lowered");
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#endif
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static int
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sysctl_kern_securelvl(SYSCTL_HANDLER_ARGS)
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{
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struct prison *pr, *cpr;
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int descend, error, level;
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pr = req->td->td_ucred->cr_prison;
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/*
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* Reading the securelevel is easy, since the current jail's level
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* is known to be at least as secure as any higher levels. Perform
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* a lockless read since the securelevel is an integer.
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*/
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level = pr->pr_securelevel;
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error = sysctl_handle_int(oidp, &level, 0, req);
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if (error || !req->newptr)
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return (error);
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/* Permit update only if the new securelevel exceeds the old. */
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sx_slock(&allprison_lock);
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mtx_lock(&pr->pr_mtx);
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if (!regression_securelevel_nonmonotonic &&
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level < pr->pr_securelevel) {
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mtx_unlock(&pr->pr_mtx);
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sx_sunlock(&allprison_lock);
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return (EPERM);
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}
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pr->pr_securelevel = level;
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/*
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* Set all child jails to be at least this level, but do not lower
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* them (even if regression_securelevel_nonmonotonic).
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*/
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FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend) {
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if (cpr->pr_securelevel < level)
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cpr->pr_securelevel = level;
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}
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mtx_unlock(&pr->pr_mtx);
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sx_sunlock(&allprison_lock);
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return (error);
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}
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SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
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CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
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"I", "Current secure level");
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#ifdef INCLUDE_CONFIG_FILE
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/* Actual kernel configuration options. */
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extern char kernconfstring[];
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SYSCTL_STRING(_kern, OID_AUTO, conftxt, CTLFLAG_RD | CTLFLAG_MPSAFE,
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kernconfstring, 0, "Kernel configuration file");
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#endif
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static int
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sysctl_hostid(SYSCTL_HANDLER_ARGS)
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{
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struct prison *pr, *cpr;
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u_long tmpid;
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int descend, error;
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/*
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* Like sysctl_hostname, except it operates on a u_long
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* instead of a string, and is used only for hostid.
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*/
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pr = req->td->td_ucred->cr_prison;
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if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr)
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return (EPERM);
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tmpid = pr->pr_hostid;
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error = sysctl_handle_long(oidp, &tmpid, 0, req);
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if (req->newptr != NULL && error == 0) {
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sx_slock(&allprison_lock);
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while (!(pr->pr_flags & PR_HOST))
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pr = pr->pr_parent;
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mtx_lock(&pr->pr_mtx);
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pr->pr_hostid = tmpid;
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FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend)
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if (cpr->pr_flags & PR_HOST)
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descend = 0;
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else
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cpr->pr_hostid = tmpid;
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mtx_unlock(&pr->pr_mtx);
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sx_sunlock(&allprison_lock);
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}
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return (error);
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}
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SYSCTL_PROC(_kern, KERN_HOSTID, hostid,
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CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE | CTLFLAG_CAPRD,
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NULL, 0, sysctl_hostid, "LU", "Host ID");
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/*
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* The osrelease string is copied from the global (osrelease in vers.c) into
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* prison0 by a sysinit and is inherited by child jails if not changed at jail
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* creation, so we always return the copy from the current prison data.
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*/
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static int
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sysctl_osrelease(SYSCTL_HANDLER_ARGS)
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{
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struct prison *pr;
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pr = req->td->td_ucred->cr_prison;
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|
return (SYSCTL_OUT(req, pr->pr_osrelease, strlen(pr->pr_osrelease) + 1));
|
|
|
|
}
|
|
|
|
SYSCTL_PROC(_kern, KERN_OSRELEASE, osrelease,
|
|
CTLTYPE_STRING | CTLFLAG_CAPRD | CTLFLAG_RD | CTLFLAG_MPSAFE,
|
|
NULL, 0, sysctl_osrelease, "A", "Operating system release");
|
|
|
|
/*
|
|
* The osreldate number is copied from the global (osreldate in vers.c) into
|
|
* prison0 by a sysinit and is inherited by child jails if not changed at jail
|
|
* creation, so we always return the value from the current prison data.
|
|
*/
|
|
static int
|
|
sysctl_osreldate(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct prison *pr;
|
|
|
|
pr = req->td->td_ucred->cr_prison;
|
|
return (SYSCTL_OUT(req, &pr->pr_osreldate, sizeof(pr->pr_osreldate)));
|
|
|
|
}
|
|
|
|
/*
|
|
* NOTICE: The *userland* release date is available in
|
|
* /usr/include/osreldate.h
|
|
*/
|
|
SYSCTL_PROC(_kern, KERN_OSRELDATE, osreldate,
|
|
CTLTYPE_INT | CTLFLAG_CAPRD | CTLFLAG_RD | CTLFLAG_MPSAFE,
|
|
NULL, 0, sysctl_osreldate, "I", "Kernel release date");
|
|
|
|
SYSCTL_NODE(_kern, OID_AUTO, features, CTLFLAG_RD, 0, "Kernel Features");
|
|
|
|
#ifdef COMPAT_FREEBSD4
|
|
FEATURE(compat_freebsd4, "Compatible with FreeBSD 4");
|
|
#endif
|
|
|
|
#ifdef COMPAT_FREEBSD5
|
|
FEATURE(compat_freebsd5, "Compatible with FreeBSD 5");
|
|
#endif
|
|
|
|
#ifdef COMPAT_FREEBSD6
|
|
FEATURE(compat_freebsd6, "Compatible with FreeBSD 6");
|
|
#endif
|
|
|
|
#ifdef COMPAT_FREEBSD7
|
|
FEATURE(compat_freebsd7, "Compatible with FreeBSD 7");
|
|
#endif
|
|
|
|
/*
|
|
* This is really cheating. These actually live in the libc, something
|
|
* which I'm not quite sure is a good idea anyway, but in order for
|
|
* getnext and friends to actually work, we define dummies here.
|
|
*
|
|
* XXXRW: These probably should be CTLFLAG_CAPRD.
|
|
*/
|
|
SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD,
|
|
"", 0, "PATH that finds all the standard utilities");
|
|
SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Max ibase/obase values in bc(1)");
|
|
SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Max array size in bc(1)");
|
|
SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Max scale value in bc(1)");
|
|
SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Max string length in bc(1)");
|
|
SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry");
|
|
SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "");
|
|
SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Max length (bytes) of a text-processing utility's input line");
|
|
SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Maximum number of repeats of a regexp permitted");
|
|
SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0,
|
|
"The version of POSIX 1003.2 with which the system attempts to comply");
|
|
SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether C development supports the C bindings option");
|
|
SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports the C development utilities option");
|
|
SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "");
|
|
SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports FORTRAN development utilities");
|
|
SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports FORTRAN runtime utilities");
|
|
SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports creation of locales");
|
|
SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports software development utilities");
|
|
SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether system supports the user portability utilities");
|
|
SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Min Maximum number of streams a process may have open at one time");
|
|
SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Min Maximum number of types supported for timezone names");
|
|
|
|
#include <sys/vnode.h>
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct vnode), "sizeof(struct vnode)");
|
|
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct proc), "sizeof(struct proc)");
|
|
|
|
static int
|
|
sysctl_kern_pid_max(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error, pm;
|
|
|
|
pm = pid_max;
|
|
error = sysctl_handle_int(oidp, &pm, 0, req);
|
|
if (error || !req->newptr)
|
|
return (error);
|
|
sx_xlock(&proctree_lock);
|
|
sx_xlock(&allproc_lock);
|
|
|
|
/*
|
|
* Only permit the values less then PID_MAX.
|
|
* As a safety measure, do not allow to limit the pid_max too much.
|
|
*/
|
|
if (pm < 300 || pm > PID_MAX)
|
|
error = EINVAL;
|
|
else
|
|
pid_max = pm;
|
|
sx_xunlock(&allproc_lock);
|
|
sx_xunlock(&proctree_lock);
|
|
return (error);
|
|
}
|
|
SYSCTL_PROC(_kern, OID_AUTO, pid_max, CTLTYPE_INT |
|
|
CTLFLAG_RWTUN | CTLFLAG_NOFETCH | CTLFLAG_MPSAFE,
|
|
0, 0, sysctl_kern_pid_max, "I", "Maximum allowed pid");
|
|
|
|
#include <sys/bio.h>
|
|
#include <sys/buf.h>
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct bio), "sizeof(struct bio)");
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct buf), "sizeof(struct buf)");
|
|
|
|
#include <sys/user.h>
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, kinfo_proc, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct kinfo_proc), "sizeof(struct kinfo_proc)");
|
|
|
|
/* Used by kernel debuggers. */
|
|
const int pcb_size = sizeof(struct pcb);
|
|
SYSCTL_INT(_debug_sizeof, OID_AUTO, pcb, CTLFLAG_RD,
|
|
SYSCTL_NULL_INT_PTR, sizeof(struct pcb), "sizeof(struct pcb)");
|
|
|
|
/* XXX compatibility, remove for 6.0 */
|
|
#include <sys/imgact.h>
|
|
#include <sys/imgact_elf.h>
|
|
SYSCTL_INT(_kern, OID_AUTO, fallback_elf_brand, CTLFLAG_RW,
|
|
&__elfN(fallback_brand), sizeof(__elfN(fallback_brand)),
|
|
"compatibility for kern.fallback_elf_brand");
|