RUN seems to be used primarily for historical reasons over the more
immediate IMPORT command. As a side-effect, RUN also runs *after* all the
rules have been processed which is not really what we want here - we expect
the device to be updated immediately. Other rules that rely on accurate evdev
axes should be able to assume the axes are already present. So let's use
IMPORT here.
For consistency, the second two rules are split across multiple lines as well.
When probing partitions, we inherit important information from the parent
disk device such as ID_MODEL, and usage of such properties is seen to
be acceptable and well established.
However, we need to exclude filesystem information from the properties
that get inherited. Information about the device content should not be
passed on in this way.
For example, Linux distro install media commonly uses an ISO filesystem
plus a partition table. The ISO filesystem is detected on the main disk
device, but we should not pass down those details to the partitions,
some or all of which may be pointing at storage areas completely distinct
from the ISO filesystem.
This is particularly problematic when adding new partitions on media
set up in this way (since the new partitions are then reported to contain
the parent device's ISO filesystem), or when dealing with more unusual
hybrid ISO layouts. The inaccuracy of information here inversely affects
users of blkid and udev's persistent storage symlinks.
Exclude ID_FS_* properties from the inheritance chain to avoid these
problems.
Fixes: #14408
This adds a udev tag that is supposed to be attached to all devices
that might potentially expose a PKCS#11 slot, i.e. CCID smartcards and
similar. We can then use the appearance of devices of this type as
trigger to rescan PKCS#11 slots.
This change is only about the source tree. We have tmpfiles.d/, modprobe.d/,
sysctl.d/, and sysusers.d/, but for historical reasons, rules/ didn't fit this
pattern. We also *install* it as rules.d/. Let's rename to be consistent.
Peter Hutterer