sockets: Convert socket filter

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
test: Add inprogress section

These are the tests i'm handling now

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
sockets: unix -- Fix permissions conversion

It still has some fixmies, since path may be not present.
Need to revisit once finish with dgram unix sockets.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
net: unix -- Fix unix names

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
tests: Mark sockets_dgram as working

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>