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Line 69... Line 69...
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void vfs_mount(ipc_callid_t rid, ipc_call_t *request)
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void vfs_mount(ipc_callid_t rid, ipc_call_t *request)
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{
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{
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    dev_handle_t dev_handle;
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    dev_handle_t dev_handle;
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    vfs_node_t *mp_node = NULL;
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    vfs_node_t *mp_node = NULL;
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    ipc_callid_t callid;
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    ipc_call_t data;
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    int rc;
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    int rc;
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    int phone;
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    int phone;
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    size_t size;
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    /*
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    /*
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     * We expect the library to do the device-name to device-handle
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     * We expect the library to do the device-name to device-handle
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     * translation for us, thus the device handle will arrive as ARG1
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     * translation for us, thus the device handle will arrive as ARG1
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     * in the request.
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     * in the request.
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    /*
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    /*
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     * For now, don't make use of ARG2 and ARG3, but they can be used to
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     * For now, don't make use of ARG2 and ARG3, but they can be used to
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     * carry mount options in the future.
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     * carry mount options in the future.
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     */
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     */
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    ipc_callid_t callid;
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    size_t size;
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    /*
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    /*
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     * Now, we expect the client to send us data with the name of the file
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     * Now, we expect the client to send us data with the name of the file
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     * system.
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     * system.
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     */
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     */
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    if (!ipc_data_write_receive(&callid, &size)) {
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    if (!ipc_data_write_receive(&callid, &size)) {
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    char fs_name[FS_NAME_MAXLEN + 1];
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    char fs_name[FS_NAME_MAXLEN + 1];
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    (void) ipc_data_write_finalize(callid, fs_name, size);
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    (void) ipc_data_write_finalize(callid, fs_name, size);
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    fs_name[size] = '\0';
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    fs_name[size] = '\0';
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    /*
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    /*
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     * Wait for IPC_M_PING so that we can return an error if we don't know
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     * fs_name.
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     */
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    callid = async_get_call(&data);
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    if (IPC_GET_METHOD(data) != IPC_M_PING) {
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        ipc_answer_0(callid, ENOTSUP);
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        ipc_answer_0(rid, ENOTSUP);
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        return;
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    }
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    /*
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     * Check if we know a file system with the same name as is in fs_name.
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     * Check if we know a file system with the same name as is in fs_name.
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     * This will also give us its file system handle.
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     * This will also give us its file system handle.
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     */
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     */
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    fs_handle_t fs_handle = fs_name_to_handle(fs_name, true);
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    fs_handle_t fs_handle = fs_name_to_handle(fs_name, true);
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    if (!fs_handle) {
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    if (!fs_handle) {
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        ipc_answer_0(callid, ENOENT);
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        ipc_answer_0(rid, ENOENT);
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        ipc_answer_0(rid, ENOENT);
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        return;
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        return;
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    }
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    }
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    /* Acknowledge that we know fs_name. */
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    ipc_answer_0(callid, EOK);
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    /* Now, we want the client to send us the mount point. */
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    /* Now, we want the client to send us the mount point. */
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    if (!ipc_data_write_receive(&callid, &size)) {
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    if (!ipc_data_write_receive(&callid, &size)) {
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        ipc_answer_0(callid, EINVAL);
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        ipc_answer_0(callid, EINVAL);
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        ipc_answer_0(rid, EINVAL);
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        ipc_answer_0(rid, EINVAL);
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        return;
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        return;