/usr/lib/libdmapsharing-3.0.so is in libdmapsharing-3.0-dev 2.9.24-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libdmapsharing-3.0.so.2.9.24
/usr/lib/libdmapsharing-3.0.so.2.9.24