51369649b0
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
606 lines
20 KiB
C
606 lines
20 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1982, 1986, 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Mike Karels at Berkeley Software Design, Inc.
|
|
*
|
|
* Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
|
|
* project, to make these variables more userfriendly.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_compat.h"
|
|
#include "opt_posix.h"
|
|
#include "opt_config.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/jail.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/random.h>
|
|
#include <sys/sbuf.h>
|
|
#include <sys/smp.h>
|
|
#include <sys/sx.h>
|
|
#include <sys/vmmeter.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/unistd.h>
|
|
|
|
SYSCTL_ROOT_NODE(0, sysctl, CTLFLAG_RW, 0,
|
|
"Sysctl internal magic");
|
|
SYSCTL_ROOT_NODE(CTL_KERN, kern, CTLFLAG_RW|CTLFLAG_CAPRD, 0,
|
|
"High kernel, proc, limits &c");
|
|
SYSCTL_ROOT_NODE(CTL_VM, vm, CTLFLAG_RW, 0,
|
|
"Virtual memory");
|
|
SYSCTL_ROOT_NODE(CTL_VFS, vfs, CTLFLAG_RW, 0,
|
|
"File system");
|
|
SYSCTL_ROOT_NODE(CTL_NET, net, CTLFLAG_RW, 0,
|
|
"Network, (see socket.h)");
|
|
SYSCTL_ROOT_NODE(CTL_DEBUG, debug, CTLFLAG_RW, 0,
|
|
"Debugging");
|
|
SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0,
|
|
"Sizeof various things");
|
|
SYSCTL_ROOT_NODE(CTL_HW, hw, CTLFLAG_RW, 0,
|
|
"hardware");
|
|
SYSCTL_ROOT_NODE(CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
|
|
"machine dependent");
|
|
SYSCTL_ROOT_NODE(CTL_USER, user, CTLFLAG_RW, 0,
|
|
"user-level");
|
|
SYSCTL_ROOT_NODE(CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
|
|
"p1003_1b, (see p1003_1b.h)");
|
|
|
|
SYSCTL_ROOT_NODE(OID_AUTO, compat, CTLFLAG_RW, 0,
|
|
"Compatibility code");
|
|
SYSCTL_ROOT_NODE(OID_AUTO, security, CTLFLAG_RW, 0,
|
|
"Security");
|
|
#ifdef REGRESSION
|
|
SYSCTL_ROOT_NODE(OID_AUTO, regression, CTLFLAG_RW, 0,
|
|
"Regression test MIB");
|
|
#endif
|
|
|
|
#ifdef EXT_RESOURCES
|
|
SYSCTL_ROOT_NODE(OID_AUTO, clock, CTLFLAG_RW, 0,
|
|
"Clocks");
|
|
#endif
|
|
|
|
SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD|CTLFLAG_MPSAFE,
|
|
kern_ident, 0, "Kernel identifier");
|
|
|
|
SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, BSD, "Operating system revision");
|
|
|
|
SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD|CTLFLAG_MPSAFE,
|
|
version, 0, "Kernel version");
|
|
|
|
SYSCTL_STRING(_kern, OID_AUTO, compiler_version, CTLFLAG_RD|CTLFLAG_MPSAFE,
|
|
compiler_version, 0, "Version of compiler used to compile kernel");
|
|
|
|
SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD|CTLFLAG_MPSAFE|
|
|
CTLFLAG_CAPRD, ostype, 0, "Operating system type");
|
|
|
|
SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
|
|
&maxproc, 0, "Maximum number of processes");
|
|
|
|
SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW,
|
|
&maxprocperuid, 0, "Maximum processes allowed per userid");
|
|
|
|
SYSCTL_INT(_kern, OID_AUTO, maxusers, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
|
|
&maxusers, 0, "Hint for kernel tuning");
|
|
|
|
SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, ARG_MAX, "Maximum bytes of argument to execve(2)");
|
|
|
|
SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, _POSIX_VERSION, "Version of POSIX attempting to comply to");
|
|
|
|
SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RDTUN |
|
|
CTLFLAG_NOFETCH | CTLFLAG_CAPRD, &ngroups_max, 0,
|
|
"Maximum number of supplemental groups a user can belong to");
|
|
|
|
SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, 1, "Whether job control is available");
|
|
|
|
#ifdef _POSIX_SAVED_IDS
|
|
SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, 1, "Whether saved set-group/user ID is available");
|
|
#else
|
|
SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, 0, "Whether saved set-group/user ID is available");
|
|
#endif
|
|
|
|
char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */
|
|
|
|
SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW | CTLFLAG_MPSAFE,
|
|
kernelname, sizeof kernelname, "Name of kernel file booted");
|
|
|
|
SYSCTL_INT(_kern, KERN_MAXPHYS, maxphys, CTLFLAG_RD | CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, MAXPHYS, "Maximum block I/O access size");
|
|
|
|
SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
&mp_ncpus, 0, "Number of active CPUs");
|
|
|
|
SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, BYTE_ORDER, "System byte order");
|
|
|
|
SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD|CTLFLAG_CAPRD,
|
|
SYSCTL_NULL_INT_PTR, PAGE_SIZE, "System memory page size");
|
|
|
|
static int
|
|
sysctl_kern_arnd(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
char buf[256];
|
|
size_t len;
|
|
|
|
/*-
|
|
* This is one of the very few legitimate uses of read_random(9).
|
|
* Use of arc4random(9) is not recommended as that will ignore
|
|
* an unsafe (i.e. unseeded) random(4).
|
|
*
|
|
* If random(4) is not seeded, then this returns 0, so the
|
|
* sysctl will return a zero-length buffer.
|
|
*/
|
|
len = read_random(buf, MIN(req->oldlen, sizeof(buf)));
|
|
return (SYSCTL_OUT(req, buf, len));
|
|
}
|
|
|
|
SYSCTL_PROC(_kern, KERN_ARND, arandom,
|
|
CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_CAPRD, NULL, 0,
|
|
sysctl_kern_arnd, "", "arc4rand");
|
|
|
|
static int
|
|
sysctl_hw_physmem(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
u_long val;
|
|
|
|
val = ctob(physmem);
|
|
return (sysctl_handle_long(oidp, &val, 0, req));
|
|
}
|
|
|
|
SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG | CTLFLAG_RD,
|
|
0, 0, sysctl_hw_physmem, "LU", "");
|
|
|
|
static int
|
|
sysctl_hw_realmem(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
u_long val;
|
|
val = ctob(realmem);
|
|
return (sysctl_handle_long(oidp, &val, 0, req));
|
|
}
|
|
SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG | CTLFLAG_RD,
|
|
0, 0, sysctl_hw_realmem, "LU", "");
|
|
static int
|
|
sysctl_hw_usermem(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
u_long val;
|
|
|
|
val = ctob(physmem - vm_cnt.v_wire_count);
|
|
return (sysctl_handle_long(oidp, &val, 0, req));
|
|
}
|
|
|
|
SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG | CTLFLAG_RD,
|
|
0, 0, sysctl_hw_usermem, "LU", "");
|
|
|
|
SYSCTL_LONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0, "");
|
|
|
|
u_long pagesizes[MAXPAGESIZES] = { PAGE_SIZE };
|
|
|
|
static int
|
|
sysctl_hw_pagesizes(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error;
|
|
#ifdef SCTL_MASK32
|
|
int i;
|
|
uint32_t pagesizes32[MAXPAGESIZES];
|
|
|
|
if (req->flags & SCTL_MASK32) {
|
|
/*
|
|
* Recreate the "pagesizes" array with 32-bit elements. Truncate
|
|
* any page size greater than UINT32_MAX to zero.
|
|
*/
|
|
for (i = 0; i < MAXPAGESIZES; i++)
|
|
pagesizes32[i] = (uint32_t)pagesizes[i];
|
|
|
|
error = SYSCTL_OUT(req, pagesizes32, sizeof(pagesizes32));
|
|
} else
|
|
#endif
|
|
error = SYSCTL_OUT(req, pagesizes, sizeof(pagesizes));
|
|
return (error);
|
|
}
|
|
SYSCTL_PROC(_hw, OID_AUTO, pagesizes, CTLTYPE_ULONG | CTLFLAG_RD,
|
|
NULL, 0, sysctl_hw_pagesizes, "LU", "Supported page sizes");
|
|
|
|
#ifdef SCTL_MASK32
|
|
int adaptive_machine_arch = 1;
|
|
SYSCTL_INT(_debug, OID_AUTO, adaptive_machine_arch, CTLFLAG_RW,
|
|
&adaptive_machine_arch, 1,
|
|
"Adapt reported machine architecture to the ABI of the binary");
|
|
#endif
|
|
|
|
static int
|
|
sysctl_hw_machine_arch(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error;
|
|
static const char machine_arch[] = MACHINE_ARCH;
|
|
#ifdef SCTL_MASK32
|
|
static const char machine_arch32[] = MACHINE_ARCH32;
|
|
|
|
if ((req->flags & SCTL_MASK32) != 0 && adaptive_machine_arch)
|
|
error = SYSCTL_OUT(req, machine_arch32, sizeof(machine_arch32));
|
|
else
|
|
#endif
|
|
error = SYSCTL_OUT(req, machine_arch, sizeof(machine_arch));
|
|
return (error);
|
|
|
|
}
|
|
SYSCTL_PROC(_hw, HW_MACHINE_ARCH, machine_arch, CTLTYPE_STRING | CTLFLAG_RD |
|
|
CTLFLAG_MPSAFE, NULL, 0, sysctl_hw_machine_arch, "A",
|
|
"System architecture");
|
|
|
|
SYSCTL_STRING(_kern, OID_AUTO, supported_archs, CTLFLAG_RD | CTLFLAG_MPSAFE,
|
|
#ifdef COMPAT_FREEBSD32
|
|
MACHINE_ARCH " " MACHINE_ARCH32, 0, "Supported architectures for binaries");
|
|
#else
|
|
MACHINE_ARCH, 0, "Supported architectures for binaries");
|
|
#endif
|
|
|
|
static int
|
|
sysctl_hostname(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct prison *pr, *cpr;
|
|
size_t pr_offset;
|
|
char tmpname[MAXHOSTNAMELEN];
|
|
int descend, error, len;
|
|
|
|
/*
|
|
* This function can set: hostname domainname hostuuid.
|
|
* Keep that in mind when comments say "hostname".
|
|
*/
|
|
pr_offset = (size_t)arg1;
|
|
len = arg2;
|
|
KASSERT(len <= sizeof(tmpname),
|
|
("length %d too long for %s", len, __func__));
|
|
|
|
pr = req->td->td_ucred->cr_prison;
|
|
if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr)
|
|
return (EPERM);
|
|
/*
|
|
* Make a local copy of hostname to get/set so we don't have to hold
|
|
* the jail mutex during the sysctl copyin/copyout activities.
|
|
*/
|
|
mtx_lock(&pr->pr_mtx);
|
|
bcopy((char *)pr + pr_offset, tmpname, len);
|
|
mtx_unlock(&pr->pr_mtx);
|
|
|
|
error = sysctl_handle_string(oidp, tmpname, len, req);
|
|
|
|
if (req->newptr != NULL && error == 0) {
|
|
/*
|
|
* Copy the locally set hostname to all jails that share
|
|
* this host info.
|
|
*/
|
|
sx_slock(&allprison_lock);
|
|
while (!(pr->pr_flags & PR_HOST))
|
|
pr = pr->pr_parent;
|
|
mtx_lock(&pr->pr_mtx);
|
|
bcopy(tmpname, (char *)pr + pr_offset, len);
|
|
FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend)
|
|
if (cpr->pr_flags & PR_HOST)
|
|
descend = 0;
|
|
else
|
|
bcopy(tmpname, (char *)cpr + pr_offset, len);
|
|
mtx_unlock(&pr->pr_mtx);
|
|
sx_sunlock(&allprison_lock);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
|
|
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
|
|
(void *)(offsetof(struct prison, pr_hostname)), MAXHOSTNAMELEN,
|
|
sysctl_hostname, "A", "Hostname");
|
|
SYSCTL_PROC(_kern, KERN_NISDOMAINNAME, domainname,
|
|
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
|
|
(void *)(offsetof(struct prison, pr_domainname)), MAXHOSTNAMELEN,
|
|
sysctl_hostname, "A", "Name of the current YP/NIS domain");
|
|
SYSCTL_PROC(_kern, KERN_HOSTUUID, hostuuid,
|
|
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
|
|
(void *)(offsetof(struct prison, pr_hostuuid)), HOSTUUIDLEN,
|
|
sysctl_hostname, "A", "Host UUID");
|
|
|
|
static int regression_securelevel_nonmonotonic = 0;
|
|
|
|
#ifdef REGRESSION
|
|
SYSCTL_INT(_regression, OID_AUTO, securelevel_nonmonotonic, CTLFLAG_RW,
|
|
®ression_securelevel_nonmonotonic, 0, "securelevel may be lowered");
|
|
#endif
|
|
|
|
static int
|
|
sysctl_kern_securelvl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct prison *pr, *cpr;
|
|
int descend, error, level;
|
|
|
|
pr = req->td->td_ucred->cr_prison;
|
|
|
|
/*
|
|
* Reading the securelevel is easy, since the current jail's level
|
|
* is known to be at least as secure as any higher levels. Perform
|
|
* a lockless read since the securelevel is an integer.
|
|
*/
|
|
level = pr->pr_securelevel;
|
|
error = sysctl_handle_int(oidp, &level, 0, req);
|
|
if (error || !req->newptr)
|
|
return (error);
|
|
/* Permit update only if the new securelevel exceeds the old. */
|
|
sx_slock(&allprison_lock);
|
|
mtx_lock(&pr->pr_mtx);
|
|
if (!regression_securelevel_nonmonotonic &&
|
|
level < pr->pr_securelevel) {
|
|
mtx_unlock(&pr->pr_mtx);
|
|
sx_sunlock(&allprison_lock);
|
|
return (EPERM);
|
|
}
|
|
pr->pr_securelevel = level;
|
|
/*
|
|
* Set all child jails to be at least this level, but do not lower
|
|
* them (even if regression_securelevel_nonmonotonic).
|
|
*/
|
|
FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend) {
|
|
if (cpr->pr_securelevel < level)
|
|
cpr->pr_securelevel = level;
|
|
}
|
|
mtx_unlock(&pr->pr_mtx);
|
|
sx_sunlock(&allprison_lock);
|
|
return (error);
|
|
}
|
|
|
|
SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
|
|
CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
|
|
"I", "Current secure level");
|
|
|
|
#ifdef INCLUDE_CONFIG_FILE
|
|
/* Actual kernel configuration options. */
|
|
extern char kernconfstring[];
|
|
|
|
SYSCTL_STRING(_kern, OID_AUTO, conftxt, CTLFLAG_RD | CTLFLAG_MPSAFE,
|
|
kernconfstring, 0, "Kernel configuration file");
|
|
#endif
|
|
|
|
static int
|
|
sysctl_hostid(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct prison *pr, *cpr;
|
|
u_long tmpid;
|
|
int descend, error;
|
|
|
|
/*
|
|
* Like sysctl_hostname, except it operates on a u_long
|
|
* instead of a string, and is used only for hostid.
|
|
*/
|
|
pr = req->td->td_ucred->cr_prison;
|
|
if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr)
|
|
return (EPERM);
|
|
tmpid = pr->pr_hostid;
|
|
error = sysctl_handle_long(oidp, &tmpid, 0, req);
|
|
|
|
if (req->newptr != NULL && error == 0) {
|
|
sx_slock(&allprison_lock);
|
|
while (!(pr->pr_flags & PR_HOST))
|
|
pr = pr->pr_parent;
|
|
mtx_lock(&pr->pr_mtx);
|
|
pr->pr_hostid = tmpid;
|
|
FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend)
|
|
if (cpr->pr_flags & PR_HOST)
|
|
descend = 0;
|
|
else
|
|
cpr->pr_hostid = tmpid;
|
|
mtx_unlock(&pr->pr_mtx);
|
|
sx_sunlock(&allprison_lock);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
SYSCTL_PROC(_kern, KERN_HOSTID, hostid,
|
|
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE | CTLFLAG_CAPRD,
|
|
NULL, 0, sysctl_hostid, "LU", "Host ID");
|
|
|
|
/*
|
|
* The osrelease string is copied from the global (osrelease 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 copy from the current prison data.
|
|
*/
|
|
static int
|
|
sysctl_osrelease(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct prison *pr;
|
|
|
|
pr = req->td->td_ucred->cr_prison;
|
|
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");
|