aa.py's set_process() function doesn't work

[Tyler Hicks]

Upon source code inspection, I see that set_process() writes "setprofile <PROFILE>" to /proc/<PID>/attr/current. The "setprofile" prefix is not accepted by the kernel. It should be writing "changeprofile <PROFILE>" to that file.

[Seth Arnold (seth-arnold)]

.. and furthermore the "changeprofile" isn't going to work anyway.

[Christian Boltz (cboltz)]

Some discussion on IRC shows that we first need to change and fix some things in the parser and maybe also the kernel to make this possible in a sane way.

Short version: aa_change_profile() can't be used from an external process, but it's possible to rename a null-* profile while reloading it. Unfortunately that renaming is quite difficult currently, so that needs to be fixed first.