Netlink Protocol # Netlink is a communication protocol between kernel and userspace. Unlike ioctl(), netlink is based on socket, which enables notification from the kernel to userspace. With ioctl(), the kernel can only send a response regarding to a user request. With netlink socket, however, user processes can be blocked via blocking functions such as recv() to receive any messages from the kernel. #include #include #include netlink_socket = socket (AF_NETLINK, socket_type, netlink_family)...
