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2021-01-13kernel, sysctl(8): remove dead variable: tickadjcheloha1-3/+3
The global "tickadj" variable is a remnant of the old NTP adjustment code we used in the kernel before the current timecounter subsystem was imported from FreeBSD circa 2004 or 2005. Fifteen years hence it is completely vestigial and we can remove it. We probably should have removed it long ago but I guess it slipped through the cracks. FreeBSD removed it in 2002: https://cgit.freebsd.org/src/commit/?id=e1d970f1811e5e1e9c912c032acdcec6521b2a6d NetBSD and DragonflyBSD can probably remove it, too. We export tickadj via the kern.clockrate sysctl(2), so update sysctl.2 and sysctl(8) accordingly. Hypothetically this change could break someone's sysctl(8) parsing script. I don't think that's very likely. ok mvs@
2020-12-28Add support for kern.video.record.mglocker1-1/+28
ok mpi@
2020-11-17Fix comment sysctl(3) -> sysctl(2).mglocker1-2/+2
2020-07-15POWE9 CPUs provide an energy sensor that accumulates the emount of energykettenis1-1/+4
used by the processor chip. Although we have a SENSOR_WATTHOUR sensor type its units are not really suitable for this sensor. So add a SENSOR_ENERGY type that uses micro Joules as its unit. ok deraadt@
2020-05-29dev/rndvar.h no longer has statistical interfaces (removed during variousderaadt1-2/+1
conversion steps). it only contains kernel prototypes for 4 interfaces, all of which legitimately belong in sys/systm.h, which are already included by all enqueue_randomness() users.
2019-12-25timeout(9): new flag: TIMEOUT_SCHEDULED, new statistic: tos_scheduledcheloha1-7/+7
This flag is set whenever a timeout is put on the wheel and cleared upon (a) running, (b) deletion, and (c) readdition. It serves two purposes: 1. Facilitate distinguishing scheduled and rescheduled timeouts. When a timeout is put on the wheel it is "scheduled" for a later softclock(). If this happens two or more times it is also said to be "rescheduled". The tos_rescheduled value thus indicates how many distant timeouts have been cascaded into a lower wheel level. 2. Eliminate false late timeouts. A timeout is not late if it is due before softclock() has had a chance to schedule it. To track this we need additional state, hence a new flag. rprocter@ raises some interesting questions. Some answers: - This interface is not stable and name changes are possible at a later date. - Although rescheduling timeouts is a side effect of the underlying implementation, I don't forsee us using anything but a timeout wheel in the future. Other data structures are too slow in practice, so I doubt that the concept of a rescheduled timeout will be irrelevant any time soon. - I think the development utility of gathering these sorts of statistics is high. Watching the distribution of timeouts under a given workflow is informative. ok visa@
2019-11-28ks_mapblocks is goneguenther1-3/+3
2019-10-29mobileip is going to the atticdlg1-3/+2
2019-09-22Let sysctl(1) work in single-user mode. Same diff applied by florian@krw1-3/+3
to ps(1). Noted by kettenis@. florian@'s fix pointed out by maestre@. ok maestre@
2019-07-12sysctl(2): add KERN_TIMEOUT_STATS: timeout(9) status and statistics.cheloha1-1/+22
With these totals one can track the throughput of the timeout(9) layer from userspace. With input from mpi@. ok mpi@
2019-07-03oops, DEBUG=-g wasn't for the tree.dlg1-2/+1
2019-07-03wire up net.link.ifrxq.pressure_return and pressure_dropdlg2-2/+50
ok visa@ deraadt@
2019-06-28When system calls indicate an error they return -1, not some arbitraryderaadt1-12/+12
value < 0. errno is only updated in this case. Change all (most?) callers of syscalls to follow this better, and let's see if this strictness helps us in the future.
2019-06-16Restrict filesystem access to read only _PATH_DEVDB and /dev through unveil(2),mestre1-4/+15
discussed by many. Additionally call ctime(3) before unveil(2) in order to avoid potential $TZ expansion and therefore avoiding opening more files that would need to be read, idea from deraadt@. While here sort the headers alphabetically. OK florian@ deraadt@
2019-05-13KERN_PFSTATUS is not handled by sysctl so warn about it if requested butclaudio1-1/+6
ignore if sysctl -a is used. OK bluhm@
2019-02-21If sysctl(8) was compiled with an obsolete struct sensordev size,bluhm1-1/+5
it could get stuck in an endless loop. After sensors sysctl(2) fails, do not continue using uninitialized memory. Catch the error, print a warning, and skip the sensors. OK benno@ visa@ deraadt@
2019-01-29Add a dedicated sysctl(2) node for witness(4).visa1-1/+28
The new node contains the subsystem's main control variable, kern.witness.watch. It is aliased by the old name, kern.witnesswatch. The alias will be removed in the future. OK anton@ mpi@
2018-12-10Add a velocity sensor type (displayed as m/s)landry1-2/+5
Change distance sensor type to be displayed as meters with 3 decimals instead of millimeters. ok mpi@ kettenis@
2018-11-06vm.malloc_conf, userland sysctl parts; ok millert@ deraadt@otto1-2/+3
2018-09-29Use atomic operations to update vfc_refcount. Change the field's typevisa1-3/+3
to unsigned int. OK deraadt@
2018-09-22Revert previous. It broke /etc/rc.visa1-8/+65
Prompted by kn@
2018-09-21Stop displaying vfsconf reference counts so that the vfc_refcount fieldvisa1-65/+8
can be removed from struct mount. As a result of this diff, arrays vfsname[] and vfsvars[] are indexed by filesystem typenum. This makes the vfs_typenums[] array redundant. OK bluhm@ mpi@
2018-08-24display CPU_CPUID / machdep.cpuid in hex not decimaljsg1-1/+5
2018-07-16use ANSI C function declaration; no binary changejasper1-13/+3
2018-05-26In addition to "on" and "off", allow the audio "record.enable" mixerratchov1-1/+28
knob to take the new "sysctl" value, which is the default. In this case, the device behavior is determined by the new "kern.audio.record" sysctl(2), which defaults to zero. ok florian
2018-03-06Fix a small mistake from r1.229 causing sysctl(8) to print "newval -> newval"tim1-2/+2
instead of "oldval -> newval" when changing a string variable. OK florian@
2018-02-16simplify synopsis and text;jmc2-21/+14
ok millert
2018-02-10add support for binary sysctl payloads by handling them as hexflorian1-7/+99
strings. this was part of a demo showing how to implement the kernel side of sysctl(3) for setting Semantically Opaque Interface Identifier key material (for RFC 7217), but it seems to be the most straightforward path toward integrating soiikey handling and rc. Originally written by dlg, who commited it some time ago on my request. I then backed it out again, now it's time to put it back in. ok florian@ sthen@ naddy@ tb@ Man page bits tweaked & OK jmc
2018-01-12Adjust references for sysctl(3) to sysctl(2)deraadt1-4/+4
2017-07-19revert previous; the code this was supposed to be used for is movingflorian1-100/+7
in the wrong direction.
2017-07-17add support for binary sysctl payloads by handling them as hex strings.dlg1-7/+100
this was part of a demo showing how to implement the kernel side of sysctl(3) for setting Semantically Opaque Interface Identifier key material, but it seems to be the most straightforward path toward integrating soiikey handling and rc. ok florian@ sthen@ naddy@ tb@
2017-05-04Merge headers defining identifiers from sysctl.8 into sysctl.3. Shorten andtb1-39/+5
update their descriptions. In sysctl.8 refer to /etc/sysctl.conf in FILES. discussed with and ok jmc
2017-04-25Use strtonum instead of strto{,u}ll for simpler and better overflowtb1-11/+10
checking, make somaxconn and sominconn unsigned. Issue reported by orge on freenode, thanks! Input, patient explanations and ok deraadt, millert.
2017-03-16remove the list of available sysctls: the sysctls are fullyjmc1-312/+6
described in sysctl(3) and a list of available sysctls on any particular machine is best retrieved using sysctl; text tweaked by schwarze ok bluhm millert deraadt schwarze
2017-03-16Fix a regression preventing ``kern.profiling'' to return the profilingmpi1-2/+3
state even with a correct kernel. Reported by jmc@, ok tb@
2017-03-11Introduce a new knob to force the first USB keyboard as console input.mpi1-2/+5
By setting "machdep.forceukbd=1" you can now use your USB keyboard in ddb(4) even if your BIOS emulates a pckbd(4). ok tom@, kettenis@, deraadt@
2017-03-04Add machdep.lidaction to list of sysctls.natano1-2/+3
prodded by Stefan Wollny via tb ok tb jmc
2016-12-22Remove PIM support from the multicast stack.rzalamena1-6/+3
ok mpi@
2016-10-18Rewrite the kern.malloc.kmemstat in the same style as previous. This one doesotto1-7/+4
not overflow because the initial count includes empty slots; ok tb@
2016-10-15add kern.dnsjackport;jmc1-2/+3
2016-10-09fix heap overflow by rewriting loop; detected by new malloc canariesotto1-6/+3
ok krw@ beck@
2016-09-28document kern.allowkmem; ok deraadtjmc1-2/+3
2016-09-23kern.arandom no longer existsderaadt1-3/+2
from rob pierce
2016-09-21sysctl KERN_ARND is no longer used (in ports, it only occurs in fallbackderaadt1-2/+1
paths of libevent). This interface was the first generation of what eventually became getentropy(2) and arc4random(3) -- june 1997! Ports scan by sthen, general agreement guenther
2016-09-11Symlinks to binaries should belong to root:bin.natano1-1/+2
tweaks and ok guenther
2016-09-07Remove usermount remnants. ok tedunatano1-3/+2
2016-09-02for reporting changes, hex and decimal were swappedderaadt1-3/+3
noticed by pirofti
2016-09-01Export machdep.cpufeature in hex, to avoid - values which madederaadt1-3/+14
yuo@ grumpy. ok tom guenther yuo
2016-08-27Pull in <sys/time.h> for struct timespecguenther1-1/+2
ok deraadt@
2016-08-14Use int64_t and %ll for CTLTYPE_QUAD nodes.guenther1-7/+8
Use memcpy() instead of up-casting from char* to long long* ok krw@
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