Device and method for real-time switching of redirection mode in desktop cloud scene

Abstract

The invention relates to a method and device for switching redirection of a smart card in real time in a desktop cloud scene. The method includes the following steps: in a device interface layer redirection mode, an application module calls an interface related with a device state change, and stores context content corresponding to the interface during blockage of the interface; and based on disconnection of a virtual machine, an application hook module releases the blocked interface according to the context content, and constructs a message notification in the state that the device is not in the position; and based on the connection of the virtual machine, the application hook module switches the redirection mode of the device to API redirection. The method provided by the invention solves the problem of a system abnormality brought by redirection mode switching of the system, improves experience of a user in using the smart card in the desktop cloud scene, and can be applied to the desktop cloud scene.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a redirection method and device. Background technique [0002] In the security scenario of the desktop cloud, the user needs to use a smart card in the virtual machine for authentication, such as using a smart card (Smart Card) for logging in to the virtual machine. At present, the common technology is to redirect the smart card of the client to the virtual machine for use. The commonly used redirection methods include device interface layer redirection and API (application programming interface) redirection. The device interface layer redirection mainly includes bus redirection and Serial port redirection, parallel port redirection and other corresponding device interface layer redirection. [0003] Device interface layer redirection and API redirection have their own advantages and disadvantages. The device interface layer redirection method can support non-PC / SC standa...

AI Technical Summary

Problems solved by technology

However, for system processes such as Windows' winlogon process, LogonUI process, etc., restarting the application process will cause system exceptions and even blue screens.

Therefore, in the existing technical solutions, if you want to switch the redirection mode, you need to restart the operating system, and you need to modify the files in the virtual machine or modify the registry entries, and you need to restart the virtual machine to take effect, which affects the use. Efficiency and user experience

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