Restrict /system/build.prop

[mnjm97]

would it be possible to restrict an app from being able to read the contents of files. specifically system files like build.prop etc...

[M66B]

Restricting individual files is possible but I rather prefer not to, since it has proven to give compatibility and performance problems. Is there something specific you have in mind? If I remember correct, then reading build.prop requires root and is safe by design.

[mnjm97]

I have a few apps that I use to check if permissions are being blocked...none of them request root, yet have access to information from build.prop as well as other system files. maybe it would work to block an app from reading everything? or spoof any file requests to a dummy file.

[M66B]

Restricting all files on /system will in effect disable Android altogether.
Files need to be restricted on a case by case basis.
The next release allows you to restrict /system/build.prop (category identification).