src/sbin/sysctl, branch release/12.3.0

MFC 367188: Use a dynamic buffer for the copy of a node's new value.

2020-12-12T17:11:22+00:00

This permits setting a node's value to a string longer than BUFSIZ.

MFC r366465, r367003, r367006, r367009

2020-11-02T20:00:50+00:00

Enable iterating all sysctls, even ones with CTLFLAG_SKIP
kern_sysctl: Misc code cleanup
sysctl: Misc code cleanup
sysctl+kern_sysctl: Honor SKIP for descendant nodes

MFC r344494,r344495:

2019-03-10T20:43:08+00:00

evdev: export event device properties through sysctl interface

A big security advantage of Wayland is not allowing applications to read
input devices all the time. Having /dev/input/* accessible to the user
account subverts this advantage.

libudev-devd was opening the evdev devices to detect their types (mouse,
keyboard, touchpad, etc). This don't work if /dev/input/* is inaccessible.
With the kernel exposing this information as sysctls (kern.evdev.input.*),
we can work w/o /dev/input/* access, preserving the Wayland security model.

Submitted by:	Greg V 
Reviewed by:	wulf, imp
Differential Revision:	https://reviews.freebsd.org/D18694

MFC r343930:

2019-02-14T09:12:19+00:00

Remove -R option which was added to sysctl(8) man page per r244106, but it is not implemented.

Submitted by:	Alfonso Siciliano 
Reviewed by:	0mp, imp
Differential Revision: 	https://reviews.freebsd.org/D19012

sysctl(8): Add a standard exit status section.

2018-09-24T20:46:45+00:00

Reviewed by:	bcr
Approved by:	re (gjb), krion (mentor)
Differential Revision:	https://reviews.freebsd.org/D17147

Improve handling of the EFI map types[] array.

2018-09-08T18:57:05+00:00

Use nitems(), do not assume EFI_MD_TYPE_ contiguous allocation, in
particular, switch to use designated array initializers.

Reviewed by:	jhb (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Approved by:	re (gjb)

Teach sysctl(8) about the Persistent memory type.

2018-09-07T15:09:56+00:00

Add PersistentMemory to the list of sysctl's known memory types
when decoding an EFI memory map.

Submitted by:	D Scott Phillips 
MFC after:	1 week
Approved by:	re (rgrimes)

Trim whitespace.

2018-09-07T14:37:44+00:00

Approved by:	re (gjb)

Move sysctl.conf to sbin/sysctl/ and switch to CONFS.

2018-08-11T13:28:03+00:00

This helps with pkgbase to tag this config file as a config file.

Approved by:	allanjude (mentor), will (mentor)
Differential Revision:	https://reviews.freebsd.org/D16559

Permit sysctl(8) to set an array of numeric values for a single node.

2018-03-09T23:37:19+00:00

Most sysctl nodes only return a single value, but some nodes return an
array of values (e.g. kern.cp_time).  sysctl(8) understand how to display
the values of a node that returns multiple values (it prints out each
numeric value separated by spaces).  However, until now sysctl(8) has
only been able to set sysctl nodes to a single value.  This change
allows sysctl to accept a new value for a numeric sysctl node that contains
multiple values separated by either spaces or commas.  sysctl(8) parses
this list into an array of values and passes the array as the "new" value
to sysctl(2).

Reviewed by:	rpokala
MFC after:	1 week
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D14569