We never used any of the libsysfs convenience features. Here we replace
it completely with 300 lines of code, which are much simpler and a bit
faster cause udev(d) does not open any syfs file for a simple event which
does not need any parent device information.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
No device node or symlink can have other characters as plain
readable ascii or valid utf8. The /dev/disk/by-label/* symlinks
can no longer contain weird stuff read from untrusted sources.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
We will not support any other character encoding than plain ascii
or utf8 for volume labels. All invalid utf8 and non-ascii characters
are substituted for security reasons. No options, no fancy heuristics.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
