menuconfig RT_UTEST_TC_USING_DFS_V2_AF_UNIX
    bool "DFSv2 AF_UNIX Test"
    default n
    depends on RT_USING_DFS_V2
    depends on RT_USING_AF_UNIX
    depends on SAL_USING_POSIX
    help
        Enable DFSv2 AF_UNIX unit tests. Sources are compiled only when
        this option and the selected test groups below are enabled.

        Coverage includes socket-node creation, transferable file
        references, datagram and stream IPC, poll readiness, pathname
        lifetime, namespace cleanup, and SCM_RIGHTS handling.

if RT_UTEST_TC_USING_DFS_V2_AF_UNIX

config RT_UTEST_DFS_V2_AF_UNIX_DIR
    string "Directory for AF_UNIX pathname tests"
    default "/dev"
    help
        Directory used to create temporary AF_UNIX pathname nodes.
        The filesystem mounted here must support S_IFSOCK nodes
        through create_vnode(), such as tmpfs or devtmpfs.

config RT_UTEST_DFS_V2_AF_UNIX_NODE
    bool "Socket node and file-reference tests"
    default y
    help
        Build tests for DFSv2 socket nodes and transferable file
        references:
        * dfs_file_mknod(FT_SOCKET) creates an S_ISSOCK node
        * creating the same path again returns EEXIST
        * unlink() removes the socket node
        * dfs_file_get_refs() rejects an invalid fd
        * get_refs() + put_ref() keeps the original fd usable
        * get_refs() + install_refs() transfers a pipe and shares
          the open file description

config RT_UTEST_DFS_V2_AF_UNIX_IPC
    bool "Datagram, stream and socketpair IPC tests"
    default y
    help
        Build tests for AF_UNIX IPC operations:
        * SOCK_DGRAM bind, connect, send and recvfrom
        * SOCK_STREAM listen, accept, send, recv and shutdown
        * socketpair() for both SOCK_DGRAM and SOCK_STREAM
        * sendmsg()/recvmsg() scatter-gather I/O
        * connected sendmsg() with a NULL msg_name
        * sendmsg() with a NULL msg_control and nonzero length
        * listen() on SOCK_DGRAM returns EOPNOTSUPP
        * connect() to a missing pathname returns ENOENT
        * non-blocking recv() returns EAGAIN

config RT_UTEST_DFS_V2_AF_UNIX_POLL
    bool "Poll readiness and peer-close tests"
    default y
    help
        Build tests for AF_UNIX poll/select readiness:
        * empty stream socket reports POLLOUT and not POLLIN
        * received data reports POLLIN
        * filling the stream buffer clears POLLOUT; a peer recv
          makes POLLOUT ready again
        * blocking poll(POLLIN) wakes with POLLHUP/POLLIN when
          the peer is closed (covers the peer-queue UAF case)
        * datagram queue-full and POLLIN readiness

config RT_UTEST_DFS_V2_AF_UNIX_NAMESPACE
    bool "Pathname bind, unlink and namespace tests"
    default y
    help
        Build tests for pathname lifetime and namespace cleanup:
        * bind() creates a persistent S_IFSOCK node
        * close() leaves the pathname in the filesystem
        * rebinding without unlink() returns EADDRINUSE
        * unlink() then bind() succeeds
        * connect() after close without unlink() returns
          ECONNREFUSED
        * connect() after unlink() returns ENOENT
        * repeated bind/close/unlink on distinct paths does not
          leak namespace entries

config RT_UTEST_DFS_V2_AF_UNIX_RIGHTS
    bool "SCM_RIGHTS transfer and rejection tests"
    default y
    help
        Build tests for SCM_RIGHTS descriptor passing:
        * transfer pipe descriptors over SOCK_DGRAM and
          SOCK_STREAM
        * recvmsg() without a control buffer reports MSG_CTRUNC
        * MSG_PEEK does not install or consume descriptors
        * an invalid fd returns EBADF
        * passing an AF_UNIX socket descriptor returns
          EOPNOTSUPP and does not create a reference cycle

endif