Block access to files instead of only hiding them

[t-moe]

Feature request:
Add a "block" option to the [fs] section of profiles.
"hiding" files and directories is not enough for me. I dont' want my sandboxed application sniffing around.
the "block" option should disallow opening any filedescriptors pointing to a "blocked" path.

[t-moe]

It seems that you already "block" access to files which are "hidden".
It's only that you don't do this recursively.
For example:
if I hide /, I can still open /etc/passwd