ctime(3) and ctime_r(3) can fail when timestamps are way off.
Add missing error checks to all calls under sbin/

Input kettenis, millert
OK millert

Remove needless includes of netinet6/ip6_var.h header in userland.

OK millert@

Implement battery management sysctl. This will provide a set of sysctls
to control the charging of laptop batteries:

* hw.battery.chargemode (int)

-1: force discharge
0: inhibit charge
1: auto

In auto mode charging may be controlled by:

* hw.battery.chargestop (int)

Percentage (0-100) of last full capacity at which the battery should
stop charging.

* hw.battery.chargestart (int)

Percentage (0-100) of last full capacity at which the battery should
start charging.

The idea is that with

hw.battery.chargemode=1
hw.battery.chargestop=80
hw.battery.chargestart=75

the battery would be kept charged within the range between 75% and 80%.

Allowable settings and some details of the behavior may differ between
hardware implementations.

Committing this early to easy testing of further diffs that implement this
functionality in acpithinkpad(4) and aplsmc(4).

ok kn@

Change the error reporting pattern throughout the tree when unveil
fails to report the path that the failure occured on. Suggested by
deraadt@ after some tech discussion.

Work done and verified by Ashton Fagg <ashton@fagg.id.au>

ok deraadt@ semarie@ claudio@

Add support for the new net.unix sysctl nodes.
OK mvs@

Cast printf args to remove compiler warnings.

From Ashton Fagg. OK tb@.

kernel, sysctl(8): remove dead variable: tickadj

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@

Add support for kern.video.record.

ok mpi@

Fix comment sysctl(3) -> sysctl(2).

POWE9 CPUs provide an energy sensor that accumulates the emount of energy
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@

dev/rndvar.h no longer has statistical interfaces (removed during various
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.

timeout(9): new flag: TIMEOUT_SCHEDULED, new statistic: tos_scheduled

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@

ks_mapblocks is gone

mobileip is going to the attic

Let sysctl(1) work in single-user mode. Same diff applied by florian@
to ps(1).

Noted by kettenis@. florian@'s fix pointed out by maestre@.

ok maestre@

sysctl(2): add KERN_TIMEOUT_STATS: timeout(9) status and statistics.

With these totals one can track the throughput of the timeout(9) layer
from userspace.

With input from mpi@.

ok mpi@

wire up net.link.ifrxq.pressure_return and pressure_drop

ok visa@ deraadt@

When system calls indicate an error they return -1, not some arbitrary
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.

Restrict filesystem access to read only _PATH_DEVDB and /dev through unveil(2),
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@

KERN_PFSTATUS is not handled by sysctl so warn about it if requested but
ignore if sysctl -a is used.
OK bluhm@

If sysctl(8) was compiled with an obsolete struct sensordev size,
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@

Add a dedicated sysctl(2) node for witness(4).

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@

Add a velocity sensor type (displayed as m/s)

Change distance sensor type to be displayed as meters with 3 decimals
instead of millimeters.

ok mpi@ kettenis@

vm.malloc_conf, userland sysctl parts; ok millert@ deraadt@

Use atomic operations to update vfc_refcount. Change the field's type
to unsigned int.

OK deraadt@

Revert previous. It broke /etc/rc.

Prompted by kn@

Stop displaying vfsconf reference counts so that the vfc_refcount field
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@

display CPU_CPUID / machdep.cpuid in hex not decimal

use ANSI C function declaration; no binary change

In addition to "on" and "off", allow the audio "record.enable" mixer
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

Fix a small mistake from r1.229 causing sysctl(8) to print "newval -> newval"
instead of "oldval -> newval" when changing a string variable.

OK florian@

simplify synopsis and text;
ok millert

add support for binary sysctl payloads by handling them as hex
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

revert previous; the code this was supposed to be used for is moving
in the wrong direction.

add support for binary sysctl payloads by handling them as hex 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, but it seems to be the most straightforward path toward
integrating soiikey handling and rc.

ok florian@ sthen@ naddy@ tb@

Use strtonum instead of strto{,u}ll for simpler and better overflow
checking, make somaxconn and sominconn unsigned.

Issue reported by orge on freenode, thanks!
Input, patient explanations and ok deraadt, millert.

Fix a regression preventing ``kern.profiling'' to return the profiling
state even with a correct kernel.

Reported by jmc@, ok tb@

Remove PIM support from the multicast stack.

ok mpi@

Rewrite the kern.malloc.kmemstat in the same style as previous. This one does
not overflow because the initial count includes empty slots; ok tb@

fix heap overflow by rewriting loop; detected by new malloc canaries
ok krw@ beck@

sysctl KERN_ARND is no longer used (in ports, it only occurs in fallback
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

for reporting changes, hex and decimal were swapped
noticed by pirofti

Export machdep.cpufeature in hex, to avoid - values which made
yuo@ grumpy.
ok tom guenther yuo

Pull in <sys/time.h> for struct timespec

ok deraadt@

Use int64_t and %ll for CTLTYPE_QUAD nodes.
Use memcpy() instead of up-casting from char* to long long*

ok krw@

increase the size of forkstat fields to accomodate large values

Add net.inet.{tcp,udp}.rootonly sysctl, to mark which ports
cannot be bound to by non-root users.

Ok millert@ bluhm@

remove the sysctl kern.random counters, since none of the remaining
ones are capable of giving valuable works vs does-not-work evidence.
ok tedu

Kill #ifdef INET6 occurrences in userland.

Prompted by and ok millert@

(tcpdump and libpcap left untouched, the #ifdef force is too strong with
those)

delete the kern.emul/KERN_EMUL sysctl bits since there are no
emulations left; ok millert@ deraadt@, jmc@ (man pages)

Convert many atoi() calls to strtonum(), adding range checks and failure
handling along the way.
Reviews by Brendan MacDonell, Jeremy Devenport, florian, doug, millert

Direct people to netstat for the new multicast routing sysctls.

problem noted by dcoppa@
ok claudio@

provide a net.inet6.ip6.ifq sysctl so people can see and fiddle
with the ip6intrq.

ok claudio@

Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible. Annotate <sys/param.h> lines with their current reasons. Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution. These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

delete the KERN_VNODE sysctl. it fails to provide any isolation from the
kernel struct vnode defintion, and the only consumer (pstat) still needs
kvm to read much of the required information. no great loss to always use
kvm until there's a better replacement interface.
ok deraadt millert uebayasi

Add a format specifier for the printf.

ok guenther@

Remove unnecessary netinet/in_systm.h include.

ok millert@

Remove non-standard <sys/dkstat.h> header. It has not contained anything
related to disk stastics for almost 17 years, and the remaining
userland-visible defines duplicate those found in <sys/sched.h>.

Move the remaining _KERNEL defines to <sys/tty.h> where they belong, and
update all users to cope with this.

ok kettenis@

repair operation of kern.arandom, which will only allow a buffer of
512 bytes. As a result, it stopped working...
ok miod

missing word in error message. ok millert

delete some crusty casts

Use VM_UVMEXP instead of VM_METER for memory usages and directly
include <sys/vmmeter.h> where it is needed instead of relying on
it being included by <uvm/uvm_extern.h>.

miod@ likes it, ok guenther@

kern.intrcnt is viewable with vmstat+systat

Whole bunch of (unsigned char) casts carefully added for ctype calls.
Careful second audit by millert

Include unistd.h as it is the standard location for getopt().

satisfy proto requirement

- add UNIX-domain socket info to struct kinfo_file2
- convert netstat from kvm_getfiles() to kvm_getfile2() using that
- delete kvm_getfiles() and KERN_FILE as no longer used (bump libkvm's major)
- rename kvm_getfile2() to kvm_getfiles(), kinfo_file2 to kinfo_file
and KERN_FILE2 to KERN_FILE.

ok deraadt@, millert@
ports scan sthen@

Revert 1.191 and 1.193 and fix the original problem (access to the last
filesystem, currently ext2fs) by increasing maxtypenum sufficiently.

suggested by Rafael Neves (rafaelneves (at) gmail.com)

Correct off-by-one in naming of nodes below vfs.mounts.

problem noted by Rafael Neves (rafaelneves (at) gmail.com)
ok jca@

add fuse sysctls, from Sylvestre Gallon

fix an off by one preventing access to the last filesystem.
from Sylvestre Gallon

Add new sysctl for pipex packet input/output queue length and
counters.

ok guenther, feedback jmc

handle big time_t types; ok guenther

Remove CTL_USER hierarchy from sysctl()
(Use sysconf() or confstr() instead)

ok miod@ millert@

remove some of the unused fields from rndstats and stop printing zeroes.
print labels before stats so people can tell what's what.

sadly, we are going to need machine/cpu.h here for a while to get machdep
noticed by naddy

remove excesss includes

add more sensor types to sensor framework.
- Pressure (10^-3 Pa)
- distance (10^-6 m)
- acceleration (10^-6 m/s^2)

ok deraadt@ reyk@

remove rfork(); ok guenther miod

remove unused variable.

ok yasuoka@

add missing sysctl_pipex declaration

ok yasuoka

reorder SENSOR_* in switch() and add missing cases.

ok deraadt@

fix typo

apply following changes to sensor framework:
- change accuracy of SENSOR_FREQ from Hz to muHz
- add SENSOR_VOLTS_AC entry to userland programs

ok deraadt@

Include PIPEX in kernel by default. And add new sysctl variable
`net.pipex.enable' to enable PIPEX. By default, pipex is disabled
and it will not process packets from wire. Update man pages and
update HOWTO_PIPEX_NPPPD.txt for testers.

discussed with dlg@, ok deraadt@ mcbride@ claudio@

allow ranges for entering net.inet.(tcp|udp).baddynamic lists, e.g.

sysctl net.inet.tcp.baddynamic=1-32768
sysctl net.inet.udp.baddynamic=+40000-65535

ok mk@

Replace the old, broken KERN_PROC ABI and its matching functions
in libkvm with the stable-ABI versions that are currently named
KERN_PROC2, kvm_get{proc,argv,envv}2(). The latter names and symbols
will continue to be supported for a few releases.

Committing now that they ports people have had a couple releases
to update pkgs that usd the old functions

expose the kernels network livelock counter

Introduce an MI kern.consdev sysctl that will replace the MD
machdep.console_device that's only implemented on a few architectures.

ok deraadt@, miod@

scale angle by 1000000 to permit min.sec accuracy

Add the "angle" sensor, measured in degrees; from Luis Pinto

Get rid of MAXSENSORDEVICES. Gaps in sensordev lists are now handled
by returning ENXIO instead of ENOENT, to essentially indicate hotplug
sensor that has gone away. Accessing beyond the end of the sensordev
list still returns ENOENT, so that you can see there are no further devices.
ok kettenis oga

Add "frequency" type for sensors. (and teach userland how to print that
type). Measured in Hz.

ok deraadt@

add SENSOR_HUMIDITY to sensor framework to handle humidity values

ok kettenis@ xsa@ sobrado@ krw@ deraadt@

IPv6 support for divert sockets.

tested by phessler@ pyr@
ok claudio@
"go ahead" deraadt@

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

Add (again) support for divert sockets. They allow you to:

- queue packets from pf(4) to a userspace application
- reinject packets from the application into the kernel stack.

The divert socket can be bound to a special "divert port" and will
receive every packet diverted to that port by pf(4).

The pf syntax is pretty simple, e.g.:

pass on em0 inet proto tcp from any to any port 80 divert-packet port 1

A lot of discussion have happened since my last commit that resulted
in many changes and improvements.
I would *really* like to thank everyone who took part in the discussion
especially canacar@ who spotted out which are the limitations of this approach.

OpenBSD divert(4) is meant to be compatible with software running on
top of FreeBSD's divert sockets even though they are pretty different and will
become even more with time.

discusses with many, but mainly reyk@ canacar@ deraadt@ dlg@ claudio@ beck@
tested by reyk@ and myself
ok reyk@ claudio@ beck@
manpage help and ok by jmc@

I had not enough oks to commit this diff.
Sorry.

Add support for divert sockets. They allow you to:

- queue packets from pf(4) to a userspace application
- reinject packets from the application into the kernel stack.

The divert socket can be bound to a special "divert port" and will
receive every packet diverted to that port by pf(4).

The pf syntax is pretty simple, e.g.:

pass on em0 inet proto tcp from any to any port 80 divert-packet port 8000

test, bugfix and ok by reyk@
manpage help and ok by jmc@
no objections from many others.

Add support for SENSOR_WATTS.

ok deraadt@, oga@

Add KERN_FILE2 sysctl analogous to KERN_PROC2 but for file structures,
along with vnode type-specific info to make it more useful for fstat(1).
OK deraadt@

Properly output machdep.chipset values on alpha models without pci buses;
ok deraadt@

fix printing of nchstats

ok art@,dlg@

expand the net.inet.(tcp|udp).baddynamic dynamic source port
skipping bitmasks to cover the entire 65536 port space - previously
they covered 512-1024 only.

sysctl needs to be updated to cope with this change; please
"make includes" before rebuilding it.

feedback millert@ ok millert@ deraadt@ markus@

Teach sysctl about mpls.

Claudio did all the code, I'm just comitting it...

ok claudio@ laurent@ dlg@

"-Aa" are not required flags; sort synopses; improve description of "-a"

written with invaluable advice from jmc@

ok jmc@

Introduce HW_PHYSMEM64 and HW_USERMEM64 sysctls, which don't overflow on
machines with more than 4GB of memory. Make sysctl(8) print values obtained
using these sysctls for hw.physmem and hw.usermem.

ok krw@, miod@

Bring in probing for protocols that was missing; ok claudio reyk

the mib[] array will be modified by sysctl_inet, move the *CTL_STATS
checks after the call for this function. now it works (again) to skip
printing the ip/tcp/udp/icmp stats in sysctl output, use netstat instead.

implement sysctls to report IP, TCP, UDP, and ICMP statistics and
change netstat to use them instead of accessing kvm for it. more
protocols will be added later.

discussed with deraadt@ claudio@ gilles@
ok deraadt@

if no arguments given, assume a nice default; ok miod jakemsr deanna

do not document -w: it is for compat only. just like we did for audioctl,
mixerctl, and wsconsctl.

also move to "name=value", as for the other *ctl apps.

problem spotted by Tim van der Molen, though this might not be the fix
he wanted;

no more ipx

remove the ztsscale sysctl; ok deraadt@

small cleanups:
* use NULL instead of 0 for pointers, as per style(9)
* wrap a long for-loop line in sysctl_malloc()
* fix -Wall complaint in print_sensor()

ok otto@

knf found while fixing another bug

pretty up the sensor outputs a wee bit more; partly spotted by jsg

Show more digits in timedelta sensor output as the timedelta sensors become
increasingly more precise.

ok deraadt

adapt to new two-level sensor sysctl framework; by Constantine A. Murenin

Add WATTHOUR and AMPHOUR

ok jordan@

Simpler code for printing time sensors: no leak and no floating
point. ok deraadt@

print time offsets much nicer

for SENSOR_TIMEDELTA, store time in nanoseconds. discussion with kettenis
mbalmer will have to cope.

if the timeval has data, print it at the end of the line

print timedelta; ok dlg

Discussed with jason@ that pfail means "partial fail". Now it translates
to "degraded".

ok jason@

Change how hw.sensors prints. Much simpler format, easier to read. While
there, stick to printing temperature measurements in just one sane unit.
ok various people, no objections for the latter

malloc(x * y) -> calloc(x, y) from adobriyan AT gmail.com, with tweaks
suggested by kjell@; ok otto@ pat@ millert@ jaredy@

add a sensor type for drive status and hook esm up with it.

ok marco@ grange@ deraadt@

Add support for light sensors.
ok dlg@

more memleaks plugged; evol@online.ptt.ru

memory leak; ok cloder

Add support for SENSOR_AMPS.
ok dlg@

add a sensor type that can report percentage

ok deraadt@

HW_PHYSMEM and HW_USERMEM should be unsigned; ok tdeval marco

Support for SENSOR_INTEGER.
ok grange@, dlg@, henning@

a quick diff for marco, who wanted to see if his power supplies were on or
off. adds printing of the INDICATOR sensor type

ok deraadt@

extend the sensors framework to allow it to report the state of the
sensor, not just its value.

ok henning@ marco@ deraadt@ beck@ fixes and tweaks grange@

Print the last two kern.nchstats entries.

add net.inet.ip.ifq for monitoring and changing ifqueue; similar to netbsd
ok henning

it is nice if this compiles on other systems

Do down-sampling of the high-resolution touch pad events in kernel,
and provide sysctls for fine-tuning the touch pad area that covers the
screen. Reasonable defaults are provided, but each machine can be a
bit different due to the manufacturing process.

actually error out when we would overflow by using the return value from
strlcpy, instead of just warning about out, and clobbering stuff anyway.
ok millert@

avoid variable aliasing

Allow setting of kern.tty.*; now we can set kern.tty.maxptys. The kernel
itself will return an error if the user tries to set a read-only variable.

do not alias over libc ttyname(3)

spacing

This touches only MI code, and adds new time keeping code. The
code is all conditionalized on __HAVE_TIMECOUNTER, and not
enabled on any platforms.

adjtime(2) support exists, courtesy of nordin@, sysctl(2) support
and a concept of quality for each time source attached exists.

High quality time sources exists for PIIX4 ACPI timer as well as
some AMD power management chips. This will have to be redone
once we actually add ACPI support (at that time we need to use
the ACPI interfaces to get at these clocks).

ok art@ ken@ miod@ jmc@ and many more

new world order for emulations. adjust, and become more robust.
testing ok deraadt@

CPU_LONGRUN is gone. repair kern.emul.nemuls, strcmp on right string

note that -w is optional and adjust accordingly;
remove -w from EXAMPLES;

diffs from Paul de Weerd;
ok deraadt@

deal with bpf node

Add flags field to the sensor structure and an only flag SENSOR_FINVALID
which allows to drop information from broken, unwired, disabled, etc
sensors.

ok hshoexer@

Tell user to run pstat -t to get kern.tty.ttyinfo if they explicitly
ask for it, else just ignore it. This is consistent with sysctl
behavior and other entries of type CTLTYPE_STRUCT.

Don't hard-code type for tty sysctls to CTLTYPE_QUAD; some values are
now int.

little wflag fallout spotted by atle kristensen

Trivial changes to pass through -Wall

ok millert@

remove the temporary -O flag..

Print output as "var=value" instead of "var = value". Also, any assignment
implies -w. I have despised the existing behaviour for years. ok from
henning, millert, grange

Tell the user to run ps if they try to view things under KERN_PROC2
(same handling as KERN_PROC).

0K == -273.15C and sync computation with drivers; ok grange

Common Address Redundancy Protocol

Allows multiple hosts to share an IP address, providing high availability
and load balancing.

Based on code by mickey@, with additional help from markus@
and Marco_Pfatschbacher@genua.de

ok deraadt@

check strdup failure; ok anil millert

slight cleanup of man page and sync usage();

don't print info about duplicate emuls. gives the illusion there is only
one linux emul and one freebsd emul. ok deraadt@

emulation is now controlled by sysctl. changes:
add e_flags to struct emul. this stores on/off and native flags.
check for emul enabled in check_exec(). gather all the emuls into a
emulsw so a sysctl can find them. create sysctl. move maxhdrsiz calcualation
into init_main so it cleans up sys_execve codepath. teach sysctl utility
to grok kern.emul hierarchy.
requested and ok deraadt@ some comments from mickey@

ansification

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

ignore longrun struct. eliminates a warning

Add the -q flag to suppress all output when setting a variable
with -w

ok jsyn@, millert@

KNF while I'm here

for hw.sensors, print stuff in a human friendly way - temperatures in
degC and degF, fan speed in RPM, and voltages in (surprise) V.
theo, millert, grange agree

Support for accessing the information from the hardware monitoring sensors
via hw.sensors node. To get the information from the all sensors
just do
$ sysctl hw.sensors.
To get the information from the particular sensor (number 5 e.g.) do
$ sysctl hw.sensors.5

Tested and ok'ed by henning@ and millert@.

Very little tweak for consistency in space vs \t

strlcat; ok millert

add kern.watchdog sysctl and generic watchdog interface;
based on feedback and discussions with mickey, henric, fgsch and jakob.
ok art@, mickey@, jakob@, henric@

Make SysV-style shared memory and semaphore limits sysctl'able.
Instead of allocating a static amount of memory for the data
structures via valloc() in allocsys(), allocate things dynamically
using pool(9) when possible and malloc(9) when not. The various
members of struct seminfo and struct shminfo are in kern.seminfo
and kern.shminfo respectively (not all members of kern.seminfo are
changable).

The data structures used still leave something to be desired but
things are not made worse in that respect by this commit.

Remove kernel support for NTP. ok deraadt@ and tholo@

ansi

rm trailing whitespace

Print message for kern.mbstat (to use netstat)

- CPU_MAXID and CPU_CHIPSET were swapped in cpu.h
- add support to print machdep.chipset mib on alpha
ok deraadt@

Part one of userland __P removal. Done with a simple regexp with some minor hand editing to make comments line up correctly. Another pass is forthcoming that handles the cases that could not be done automatically.

Support for the new uvm sysctls.

No need to vm_param.h here.

nkmempages.

escape a wrning on msgbuf, under certain circumstances

IPComp support. angelos@ ok.

UVM is no longer an option

Fix more printf formats.
Add some missing prototypes.

Fix a bunch of u_int64_t formats.

more arguments than format

block on msgbuf

unused variable

Nicer printing of kmem buckets.

make listall immune to supuh long names; after deraadtification

duh, main returns

do not use strlen after strlcpy

Ignore empty strings in kern.malloc.kmemstat.<foo>, add tty stats.

Better argument checking for kmemstats.

Print the new sysctls (nchstats, kmemstats, nselcoll, forkstat)

give cp_time a proper treatment

attempting to sysctl clear a string was failing; checked by millert and aaron

Sync.

Read a struct kmembuckets, rather than individual values.

Print the kern.malloc.* branch

strlcpy is great

Fix an int * that should be a size_t * when calling sysctl(3).

warnx?/errx? paranoia (use "%s" not a bare string unless it is a
constant). These are not security holes but it is worth fixing
them anyway both for robustness and so folks looking for examples
in the tree are not misled into doing something potentially dangerous.
Furthermore, it is a bad idea to assume that pathnames will not
include '%' in them and that error routines don't return strings
with '%' in them (especially in light of the possibility of locales).

add swapencrypt ctl level.

s/PIMCTL/PIM6CTL/ for less confusion.

modify vfs subtree to accomodate for fs-specific variables.
in particular expose vfs.nfs.iothreads, which is a replacement
for nfsiod kludge.
this is not a netbsd port-over, since this particular
implementation builds up the needed variable indexes dynamically
(using the already existing `generic' vfs variables),
as opposed to netbsd which relies on static matching w/ kernel
definitions and configuration...
man changes to come soon.

branches: 1.49.2;
this is how rnd stats are printed out now

more random stats

do not directly include netinet6/{ip6,icmp6}.h

ip4.allow -> ipip.allow

gre.allow and mobileip.allow

vm.swapencrypt for UVM

add IPv6 support. net.inet6.{ip6,icmp6} will be printed.

net.inet.etherip.allow sysctl

Treat kern.hostid as a u_int, and clean up parsing of integers on the command
line.

print kern.arandom unsigned

Introduce net.inet.{ah,esp}.enable sysctl controls that are off by default.
If you are going to use either of AH or ESP or both, enable these in
/etc/sysctl.conf. Also correct the IPSec debugging sysctl code, it is now
named net.inet.ip.encdebug. Some corrected function signatures too.

The userland parts of a sysctl that can switch on/off IP-in-IP (protocol 4)

mib for pf_key is PF_KEY not PF_KEY_V2

New position for the encdebug variable.

fix type botches

Add support for vfs.* from lite2

use warn() instead of warnx() to print error message

fix diskinfo listing, support blk2chr,chr2blk

make diskinfo working; fix one bug and one exploit

newer bios stuff

s/xntpd/xntpdc/

put real geo field in ()

avoid sign extension on bios geometry!

new machdep.bios subtree

Add parens to shut up -Wall.

fix case we have no CPU_BIOS* defined

symbolic bios bootdev, s/hpc/tpc/ for bios geonetry

grok bios geometry

Some KNF, check a few return values and use err/warn.

Move bad dynamic port parsing into parse_baddynamic().

Add support for adding/subtracting ports from the current baddynamic
mask.

typo

Make net.inet.tcp.baddynamic and net.inet.udp.baddynamic
comma-separated instead of space-separated when printing
so it is easy to cut and paste.

Only print bad dynamic ports list for udp and tcp since that's all
that exist. This fixes a bug where net.inet.ip.redirect,
net.inet.ip.directed-broadcast, and net.inet.tcp.keepinittimem
got interpreted as dynamic port lists. Oops.

The list of tcp/udp ports not to allocate dynamically is now
a bitmask configurable via sysctl([38]). The default values
have not changed. If one wants to change the list it should
be done early on in /etc/rc.

tabify, use NULL for ptr ops, not 0

re-tabify (angelos!)

sysctl for PF_ENCAP.

fix the rnd types

more accounting!

count slow queue low entropy drops
bigger queue
use queue overflows for arc4_stir()

split the treatment of the random events
event_q by flipk@
spl fix by deraadt@
gother statistics about whole processing
use 'sysctl kern.random' to view what had happened
also fix wrong vm.psstrings description

Use a size_t as arg 4 to sysctl(3).

Support VM_PSSTRINGS. Man, this has been sitting in my tree for a while...

getopt(3) returns -1 when out of args, not EOF, whee!

ipx sysctl.
cleanup (protyping, printf formats and so)
1 (one) bug fix in printf's arg (struct instead of field)

Make {,f}chown(2) behaviour POSIX.1 compliant with SUID / SGID files
Enable CTL_FS processing by sysctl(3)
Add CTL_FS request to disable clearing SUID / SGID bit when a files owner
or group is changed by root
Make sysctl(8) understand CTL_FS requests

DDB support added.

branches: 1.1.1;
Initial revision

Remove needless includes of netinet6/ip6_var.h header in userland.

OK millert@

Implement battery management sysctl. This will provide a set of sysctls
to control the charging of laptop batteries:

* hw.battery.chargemode (int)

-1: force discharge
0: inhibit charge
1: auto

In auto mode charging may be controlled by:

* hw.battery.chargestop (int)

Percentage (0-100) of last full capacity at which the battery should
stop charging.

* hw.battery.chargestart (int)

Percentage (0-100) of last full capacity at which the battery should
start charging.

The idea is that with

hw.battery.chargemode=1
hw.battery.chargestop=80
hw.battery.chargestart=75

the battery would be kept charged within the range between 75% and 80%.

Allowable settings and some details of the behavior may differ between
hardware implementations.

Committing this early to easy testing of further diffs that implement this
functionality in acpithinkpad(4) and aplsmc(4).

ok kn@

Change the error reporting pattern throughout the tree when unveil
fails to report the path that the failure occured on. Suggested by
deraadt@ after some tech discussion.

Work done and verified by Ashton Fagg <ashton@fagg.id.au>

ok deraadt@ semarie@ claudio@

Add support for the new net.unix sysctl nodes.
OK mvs@

Cast printf args to remove compiler warnings.

From Ashton Fagg. OK tb@.

kernel, sysctl(8): remove dead variable: tickadj

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@

Add support for kern.video.record.

ok mpi@

Fix comment sysctl(3) -> sysctl(2).

POWE9 CPUs provide an energy sensor that accumulates the emount of energy
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@

dev/rndvar.h no longer has statistical interfaces (removed during various
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.

timeout(9): new flag: TIMEOUT_SCHEDULED, new statistic: tos_scheduled

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@

ks_mapblocks is gone

mobileip is going to the attic

Let sysctl(1) work in single-user mode. Same diff applied by florian@
to ps(1).

Noted by kettenis@. florian@'s fix pointed out by maestre@.

ok maestre@

sysctl(2): add KERN_TIMEOUT_STATS: timeout(9) status and statistics.

With these totals one can track the throughput of the timeout(9) layer
from userspace.

With input from mpi@.

ok mpi@

wire up net.link.ifrxq.pressure_return and pressure_drop

ok visa@ deraadt@

When system calls indicate an error they return -1, not some arbitrary
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.

Restrict filesystem access to read only _PATH_DEVDB and /dev through unveil(2),
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@

KERN_PFSTATUS is not handled by sysctl so warn about it if requested but
ignore if sysctl -a is used.
OK bluhm@

If sysctl(8) was compiled with an obsolete struct sensordev size,
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@

Add a dedicated sysctl(2) node for witness(4).

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@

Add a velocity sensor type (displayed as m/s)

Change distance sensor type to be displayed as meters with 3 decimals
instead of millimeters.

ok mpi@ kettenis@

vm.malloc_conf, userland sysctl parts; ok millert@ deraadt@

Use atomic operations to update vfc_refcount. Change the field's type
to unsigned int.

OK deraadt@

Revert previous. It broke /etc/rc.

Prompted by kn@

Stop displaying vfsconf reference counts so that the vfc_refcount field
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@

display CPU_CPUID / machdep.cpuid in hex not decimal

use ANSI C function declaration; no binary change

In addition to "on" and "off", allow the audio "record.enable" mixer
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

Fix a small mistake from r1.229 causing sysctl(8) to print "newval -> newval"
instead of "oldval -> newval" when changing a string variable.

OK florian@

simplify synopsis and text;
ok millert

add support for binary sysctl payloads by handling them as hex
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

revert previous; the code this was supposed to be used for is moving
in the wrong direction.

add support for binary sysctl payloads by handling them as hex 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, but it seems to be the most straightforward path toward
integrating soiikey handling and rc.

ok florian@ sthen@ naddy@ tb@

Use strtonum instead of strto{,u}ll for simpler and better overflow
checking, make somaxconn and sominconn unsigned.

Issue reported by orge on freenode, thanks!
Input, patient explanations and ok deraadt, millert.

Fix a regression preventing ``kern.profiling'' to return the profiling
state even with a correct kernel.

Reported by jmc@, ok tb@

Remove PIM support from the multicast stack.

ok mpi@

Rewrite the kern.malloc.kmemstat in the same style as previous. This one does
not overflow because the initial count includes empty slots; ok tb@

fix heap overflow by rewriting loop; detected by new malloc canaries
ok krw@ beck@

sysctl KERN_ARND is no longer used (in ports, it only occurs in fallback
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

for reporting changes, hex and decimal were swapped
noticed by pirofti

Export machdep.cpufeature in hex, to avoid - values which made
yuo@ grumpy.
ok tom guenther yuo

Pull in <sys/time.h> for struct timespec

ok deraadt@

Use int64_t and %ll for CTLTYPE_QUAD nodes.
Use memcpy() instead of up-casting from char* to long long*

ok krw@

increase the size of forkstat fields to accomodate large values

Add net.inet.{tcp,udp}.rootonly sysctl, to mark which ports
cannot be bound to by non-root users.

Ok millert@ bluhm@

remove the sysctl kern.random counters, since none of the remaining
ones are capable of giving valuable works vs does-not-work evidence.
ok tedu

Kill #ifdef INET6 occurrences in userland.

Prompted by and ok millert@

(tcpdump and libpcap left untouched, the #ifdef force is too strong with
those)

delete the kern.emul/KERN_EMUL sysctl bits since there are no
emulations left; ok millert@ deraadt@, jmc@ (man pages)

Convert many atoi() calls to strtonum(), adding range checks and failure
handling along the way.
Reviews by Brendan MacDonell, Jeremy Devenport, florian, doug, millert

Direct people to netstat for the new multicast routing sysctls.

problem noted by dcoppa@
ok claudio@

provide a net.inet6.ip6.ifq sysctl so people can see and fiddle
with the ip6intrq.

ok claudio@

Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible. Annotate <sys/param.h> lines with their current reasons. Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution. These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

delete the KERN_VNODE sysctl. it fails to provide any isolation from the
kernel struct vnode defintion, and the only consumer (pstat) still needs
kvm to read much of the required information. no great loss to always use
kvm until there's a better replacement interface.
ok deraadt millert uebayasi

Add a format specifier for the printf.

ok guenther@

Remove unnecessary netinet/in_systm.h include.

ok millert@

Remove non-standard <sys/dkstat.h> header. It has not contained anything
related to disk stastics for almost 17 years, and the remaining
userland-visible defines duplicate those found in <sys/sched.h>.

Move the remaining _KERNEL defines to <sys/tty.h> where they belong, and
update all users to cope with this.

ok kettenis@

repair operation of kern.arandom, which will only allow a buffer of
512 bytes. As a result, it stopped working...
ok miod

missing word in error message. ok millert

delete some crusty casts

Use VM_UVMEXP instead of VM_METER for memory usages and directly
include <sys/vmmeter.h> where it is needed instead of relying on
it being included by <uvm/uvm_extern.h>.

miod@ likes it, ok guenther@

kern.intrcnt is viewable with vmstat+systat

Whole bunch of (unsigned char) casts carefully added for ctype calls.
Careful second audit by millert

Include unistd.h as it is the standard location for getopt().

satisfy proto requirement

- add UNIX-domain socket info to struct kinfo_file2
- convert netstat from kvm_getfiles() to kvm_getfile2() using that
- delete kvm_getfiles() and KERN_FILE as no longer used (bump libkvm's major)
- rename kvm_getfile2() to kvm_getfiles(), kinfo_file2 to kinfo_file
and KERN_FILE2 to KERN_FILE.

ok deraadt@, millert@
ports scan sthen@

Revert 1.191 and 1.193 and fix the original problem (access to the last
filesystem, currently ext2fs) by increasing maxtypenum sufficiently.

suggested by Rafael Neves (rafaelneves (at) gmail.com)

Correct off-by-one in naming of nodes below vfs.mounts.

problem noted by Rafael Neves (rafaelneves (at) gmail.com)
ok jca@

add fuse sysctls, from Sylvestre Gallon

fix an off by one preventing access to the last filesystem.
from Sylvestre Gallon

Add new sysctl for pipex packet input/output queue length and
counters.

ok guenther, feedback jmc

handle big time_t types; ok guenther

Remove CTL_USER hierarchy from sysctl()
(Use sysconf() or confstr() instead)

ok miod@ millert@

remove some of the unused fields from rndstats and stop printing zeroes.
print labels before stats so people can tell what's what.

sadly, we are going to need machine/cpu.h here for a while to get machdep
noticed by naddy

remove excesss includes

add more sensor types to sensor framework.
- Pressure (10^-3 Pa)
- distance (10^-6 m)
- acceleration (10^-6 m/s^2)

ok deraadt@ reyk@

remove rfork(); ok guenther miod

remove unused variable.

ok yasuoka@

add missing sysctl_pipex declaration

ok yasuoka

reorder SENSOR_* in switch() and add missing cases.

ok deraadt@

fix typo

apply following changes to sensor framework:
- change accuracy of SENSOR_FREQ from Hz to muHz
- add SENSOR_VOLTS_AC entry to userland programs

ok deraadt@

Include PIPEX in kernel by default. And add new sysctl variable
`net.pipex.enable' to enable PIPEX. By default, pipex is disabled
and it will not process packets from wire. Update man pages and
update HOWTO_PIPEX_NPPPD.txt for testers.

discussed with dlg@, ok deraadt@ mcbride@ claudio@

allow ranges for entering net.inet.(tcp|udp).baddynamic lists, e.g.

sysctl net.inet.tcp.baddynamic=1-32768
sysctl net.inet.udp.baddynamic=+40000-65535

ok mk@

Replace the old, broken KERN_PROC ABI and its matching functions
in libkvm with the stable-ABI versions that are currently named
KERN_PROC2, kvm_get{proc,argv,envv}2(). The latter names and symbols
will continue to be supported for a few releases.

Committing now that they ports people have had a couple releases
to update pkgs that usd the old functions

expose the kernels network livelock counter

Introduce an MI kern.consdev sysctl that will replace the MD
machdep.console_device that's only implemented on a few architectures.

ok deraadt@, miod@

scale angle by 1000000 to permit min.sec accuracy

Add the "angle" sensor, measured in degrees; from Luis Pinto

Get rid of MAXSENSORDEVICES. Gaps in sensordev lists are now handled
by returning ENXIO instead of ENOENT, to essentially indicate hotplug
sensor that has gone away. Accessing beyond the end of the sensordev
list still returns ENOENT, so that you can see there are no further devices.
ok kettenis oga

Add "frequency" type for sensors. (and teach userland how to print that
type). Measured in Hz.

ok deraadt@

add SENSOR_HUMIDITY to sensor framework to handle humidity values

ok kettenis@ xsa@ sobrado@ krw@ deraadt@

IPv6 support for divert sockets.

tested by phessler@ pyr@
ok claudio@
"go ahead" deraadt@

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

Add (again) support for divert sockets. They allow you to:

- queue packets from pf(4) to a userspace application
- reinject packets from the application into the kernel stack.

The divert socket can be bound to a special "divert port" and will
receive every packet diverted to that port by pf(4).

The pf syntax is pretty simple, e.g.:

pass on em0 inet proto tcp from any to any port 80 divert-packet port 1

A lot of discussion have happened since my last commit that resulted
in many changes and improvements.
I would *really* like to thank everyone who took part in the discussion
especially canacar@ who spotted out which are the limitations of this approach.

OpenBSD divert(4) is meant to be compatible with software running on
top of FreeBSD's divert sockets even though they are pretty different and will
become even more with time.

discusses with many, but mainly reyk@ canacar@ deraadt@ dlg@ claudio@ beck@
tested by reyk@ and myself
ok reyk@ claudio@ beck@
manpage help and ok by jmc@

I had not enough oks to commit this diff.
Sorry.

Add support for divert sockets. They allow you to:

- queue packets from pf(4) to a userspace application
- reinject packets from the application into the kernel stack.

The divert socket can be bound to a special "divert port" and will
receive every packet diverted to that port by pf(4).

The pf syntax is pretty simple, e.g.:

pass on em0 inet proto tcp from any to any port 80 divert-packet port 8000

test, bugfix and ok by reyk@
manpage help and ok by jmc@
no objections from many others.

Add support for SENSOR_WATTS.

ok deraadt@, oga@

Add KERN_FILE2 sysctl analogous to KERN_PROC2 but for file structures,
along with vnode type-specific info to make it more useful for fstat(1).
OK deraadt@

Properly output machdep.chipset values on alpha models without pci buses;
ok deraadt@

fix printing of nchstats

ok art@,dlg@

expand the net.inet.(tcp|udp).baddynamic dynamic source port
skipping bitmasks to cover the entire 65536 port space - previously
they covered 512-1024 only.

sysctl needs to be updated to cope with this change; please
"make includes" before rebuilding it.

feedback millert@ ok millert@ deraadt@ markus@

Teach sysctl about mpls.

Claudio did all the code, I'm just comitting it...

ok claudio@ laurent@ dlg@

"-Aa" are not required flags; sort synopses; improve description of "-a"

written with invaluable advice from jmc@

ok jmc@

Introduce HW_PHYSMEM64 and HW_USERMEM64 sysctls, which don't overflow on
machines with more than 4GB of memory. Make sysctl(8) print values obtained
using these sysctls for hw.physmem and hw.usermem.

ok krw@, miod@

Bring in probing for protocols that was missing; ok claudio reyk

the mib[] array will be modified by sysctl_inet, move the *CTL_STATS
checks after the call for this function. now it works (again) to skip
printing the ip/tcp/udp/icmp stats in sysctl output, use netstat instead.

implement sysctls to report IP, TCP, UDP, and ICMP statistics and
change netstat to use them instead of accessing kvm for it. more
protocols will be added later.

discussed with deraadt@ claudio@ gilles@
ok deraadt@

if no arguments given, assume a nice default; ok miod jakemsr deanna

do not document -w: it is for compat only. just like we did for audioctl,
mixerctl, and wsconsctl.

also move to "name=value", as for the other *ctl apps.

problem spotted by Tim van der Molen, though this might not be the fix
he wanted;

no more ipx

remove the ztsscale sysctl; ok deraadt@

small cleanups:
* use NULL instead of 0 for pointers, as per style(9)
* wrap a long for-loop line in sysctl_malloc()
* fix -Wall complaint in print_sensor()

ok otto@

knf found while fixing another bug

pretty up the sensor outputs a wee bit more; partly spotted by jsg

Show more digits in timedelta sensor output as the timedelta sensors become
increasingly more precise.

ok deraadt

adapt to new two-level sensor sysctl framework; by Constantine A. Murenin

Add WATTHOUR and AMPHOUR

ok jordan@

Simpler code for printing time sensors: no leak and no floating
point. ok deraadt@

print time offsets much nicer

for SENSOR_TIMEDELTA, store time in nanoseconds. discussion with kettenis
mbalmer will have to cope.

if the timeval has data, print it at the end of the line

print timedelta; ok dlg

Discussed with jason@ that pfail means "partial fail". Now it translates
to "degraded".

ok jason@

Change how hw.sensors prints. Much simpler format, easier to read. While
there, stick to printing temperature measurements in just one sane unit.
ok various people, no objections for the latter

malloc(x * y) -> calloc(x, y) from adobriyan AT gmail.com, with tweaks
suggested by kjell@; ok otto@ pat@ millert@ jaredy@

add a sensor type for drive status and hook esm up with it.

ok marco@ grange@ deraadt@

Add support for light sensors.
ok dlg@

more memleaks plugged; evol@online.ptt.ru

memory leak; ok cloder

Add support for SENSOR_AMPS.
ok dlg@

add a sensor type that can report percentage

ok deraadt@

HW_PHYSMEM and HW_USERMEM should be unsigned; ok tdeval marco

Support for SENSOR_INTEGER.
ok grange@, dlg@, henning@

a quick diff for marco, who wanted to see if his power supplies were on or
off. adds printing of the INDICATOR sensor type

ok deraadt@

extend the sensors framework to allow it to report the state of the
sensor, not just its value.

ok henning@ marco@ deraadt@ beck@ fixes and tweaks grange@

Print the last two kern.nchstats entries.

add net.inet.ip.ifq for monitoring and changing ifqueue; similar to netbsd
ok henning

it is nice if this compiles on other systems

Do down-sampling of the high-resolution touch pad events in kernel,
and provide sysctls for fine-tuning the touch pad area that covers the
screen. Reasonable defaults are provided, but each machine can be a
bit different due to the manufacturing process.

actually error out when we would overflow by using the return value from
strlcpy, instead of just warning about out, and clobbering stuff anyway.
ok millert@

avoid variable aliasing

Allow setting of kern.tty.*; now we can set kern.tty.maxptys. The kernel
itself will return an error if the user tries to set a read-only variable.

do not alias over libc ttyname(3)

spacing

This touches only MI code, and adds new time keeping code. The
code is all conditionalized on __HAVE_TIMECOUNTER, and not
enabled on any platforms.

adjtime(2) support exists, courtesy of nordin@, sysctl(2) support
and a concept of quality for each time source attached exists.

High quality time sources exists for PIIX4 ACPI timer as well as
some AMD power management chips. This will have to be redone
once we actually add ACPI support (at that time we need to use
the ACPI interfaces to get at these clocks).

ok art@ ken@ miod@ jmc@ and many more

new world order for emulations. adjust, and become more robust.
testing ok deraadt@

CPU_LONGRUN is gone. repair kern.emul.nemuls, strcmp on right string

note that -w is optional and adjust accordingly;
remove -w from EXAMPLES;

diffs from Paul de Weerd;
ok deraadt@

deal with bpf node

Add flags field to the sensor structure and an only flag SENSOR_FINVALID
which allows to drop information from broken, unwired, disabled, etc
sensors.

ok hshoexer@

Tell user to run pstat -t to get kern.tty.ttyinfo if they explicitly
ask for it, else just ignore it. This is consistent with sysctl
behavior and other entries of type CTLTYPE_STRUCT.

Don't hard-code type for tty sysctls to CTLTYPE_QUAD; some values are
now int.

little wflag fallout spotted by atle kristensen

Trivial changes to pass through -Wall

ok millert@

remove the temporary -O flag..

Print output as "var=value" instead of "var = value". Also, any assignment
implies -w. I have despised the existing behaviour for years. ok from
henning, millert, grange

Tell the user to run ps if they try to view things under KERN_PROC2
(same handling as KERN_PROC).

0K == -273.15C and sync computation with drivers; ok grange

Common Address Redundancy Protocol

Allows multiple hosts to share an IP address, providing high availability
and load balancing.

Based on code by mickey@, with additional help from markus@
and Marco_Pfatschbacher@genua.de

ok deraadt@

check strdup failure; ok anil millert

slight cleanup of man page and sync usage();

don't print info about duplicate emuls. gives the illusion there is only
one linux emul and one freebsd emul. ok deraadt@

emulation is now controlled by sysctl. changes:
add e_flags to struct emul. this stores on/off and native flags.
check for emul enabled in check_exec(). gather all the emuls into a
emulsw so a sysctl can find them. create sysctl. move maxhdrsiz calcualation
into init_main so it cleans up sys_execve codepath. teach sysctl utility
to grok kern.emul hierarchy.
requested and ok deraadt@ some comments from mickey@

ansification

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

ignore longrun struct. eliminates a warning

Add the -q flag to suppress all output when setting a variable
with -w

ok jsyn@, millert@

KNF while I'm here

for hw.sensors, print stuff in a human friendly way - temperatures in
degC and degF, fan speed in RPM, and voltages in (surprise) V.
theo, millert, grange agree

Support for accessing the information from the hardware monitoring sensors
via hw.sensors node. To get the information from the all sensors
just do
$ sysctl hw.sensors.
To get the information from the particular sensor (number 5 e.g.) do
$ sysctl hw.sensors.5

Tested and ok'ed by henning@ and millert@.

Very little tweak for consistency in space vs \t

strlcat; ok millert

add kern.watchdog sysctl and generic watchdog interface;
based on feedback and discussions with mickey, henric, fgsch and jakob.
ok art@, mickey@, jakob@, henric@

Make SysV-style shared memory and semaphore limits sysctl'able.
Instead of allocating a static amount of memory for the data
structures via valloc() in allocsys(), allocate things dynamically
using pool(9) when possible and malloc(9) when not. The various
members of struct seminfo and struct shminfo are in kern.seminfo
and kern.shminfo respectively (not all members of kern.seminfo are
changable).

The data structures used still leave something to be desired but
things are not made worse in that respect by this commit.