Rewrite the netlink handling code to use libmnl. The size cost is very small,

and it is hard to do netlink completely correctly as it is poorly documented.

CMakeLists.txt

@@ -7,6 +7,8 @@ set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -s -std=gnu99 -pedantic -Wall -lcap -DHAVE
 
 include_directories("${PROJECT_SOURCE_DIR}/ncmlib")
 add_subdirectory(ncmlib)
+include_directories("${PROJECT_SOURCE_DIR}/libmnl")
+add_subdirectory(libmnl)
 
 add_subdirectory(ifchd)
 add_subdirectory(ndhc)