Protocol independent way to reserve and assign preferred port names for session-isolated USB serial/parallel port devices

摘要

Assigning port names based on port name characteristics to multiple universal serial bus (USB) devices where session-level restriction is enabled permits multiple users to connect multiple USB devices to ports using the particular devices preferred port name. Characteristics of a USB device are stored, including a preferred port name. When a user requests connection to a USB device that has been redirected or virtualized, the filter driver at the server attempts to assign the USB device to the preferred port name according to one or more stored characteristics. In this way, multiple users may assign multiple USB devices to the same preferred port name.

主权项

1. A method comprising: receiving a request for a connection to a first virtual USB device by a first user of a first client;
creating a first global namespace symbolic link in global namespace associated with the first virtual USB device, wherein the first virtual USB device is associated with a first I/O device; determining if the first global namespace symbolic link is associated with a port name of the first client; determining if session-level restriction is enabled for the first user; caching one or more reserved port names; determining if a first preferred port name characteristic exists for the first virtual USB device; determining if a first preferred port name is available, based, at least in part, on the first preferred port name characteristic; and creating a first symbolic link in a first user-session namespace, wherein the first user-session namespace is associated with the first user, and wherein the first symbolic link is based, at least in part, on the first preferred port name.