Any socket library to communicate with kernel via netlink?

[lampahome]

As title, I tried to communicate with kernel via netlink. But I failed when
I receive msg from kernel.

The weird point is sending successfully from user to kernel, failed when
receiving from kernel.

So I want to check code in 3rd library and dig in, but always found library
called netlinkg but it actually does something like modify network address
or check network card...

Any idea is welcome