On Apr 11, 2017 04:54, "peng fei" <fionapeng...@gmail.com> wrote:

Some research set hook on C API. SEAndroid set hook on syscall.
What's the difference of access control performance  between the C hook and
the syscall hook?


The userspace library hook will be faster, as it avoids the context switch,
however it's insecure as the code doing the check lives inside the process
your checking. There's also different ways of doing this, and they all have
there corner cases.


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