no logging if using non-existent child profile

[Jamie Strandboge]

Ubuntu recently added the ubuntu-helpers abstraction with the sanitized_helper child profile. If I do the following:

/bin/foo {
   /usr/bin/bar Cxr -> sanitized_helper,
}

and then execute /bin/foo, the execution of /usr/bin/bar fails but with no logging. This is because in the above profile I forgot to add '#include <abstractions/ubuntu-helpers>', which is what defines the sanitized_helper profile.

This can either be fixed in the logging mechanism or apparmor_parser should fail if the parent profile references a child profile that is not defined.

[John Johansen (jjohansen)]

This needs to be fixed in the logging, as apparmor currently doesn't do a total policy load. That is the target may be a profile that is compiled and loaded separately, or a profile that has been removed.