Shim specific ancillary data Introduce shim specific ancillary data which can be used by sendmsg() and recvmsg() calls. By using the shim specific ancillary data: Application can get locator information of received IP packet. Application can specify locator information for outgoing IP packet. msg_name msg_namelen msg_iov msg_iovlen msg_control msg_controllen msg_flags cmsg_len cmsg_level cmsg_type locator information cmsg_len cmsg_level cmsg_type locator information iov_base iov_len msghdr{} sockaddr_xx{} iovec{} |